A group of transmissible viral diseases of chickens and turkeys. Liver tumors are found in most forms, but tumors can be found elsewhere.
The type species of ALPHARETROVIRUS producing latent or manifest lymphoid leukosis in fowl.
A genus of the family RETROVIRIDAE with type C morphology, that causes malignant and other diseases in wild birds and domestic fowl.
Common name for the species Gallus gallus, the domestic fowl, in the family Phasianidae, order GALLIFORMES. It is descended from the red jungle fowl of SOUTHEAST ASIA.
An epithelial outgrowth of the cloaca in birds similar to the thymus in mammals. It atrophies within 6 months after birth and remains as a fibrous remnant in adult birds. It is composed of lymphoid tissue and prior to involution, is the site of B-lymphocyte maturation.
Proteins obtained from species of BIRDS.
Group of alpharetroviruses (ALPHARETROVIRUS) producing sarcomata and other tumors in chickens and other fowl and also in pigeons, ducks, and RATS.
The developmental entity of a fertilized chicken egg (ZYGOTE). The developmental process begins about 24 h before the egg is laid at the BLASTODISC, a small whitish spot on the surface of the EGG YOLK. After 21 days of incubation, the embryo is fully developed before hatching.
A lymphoid neoplastic disease in cattle caused by the bovine leukemia virus. Enzootic bovine leukosis may take the form of lymphosarcoma, malignant lymphoma, or leukemia but the presence of malignant cells in the blood is not a consistent finding.
Diseases of birds which are raised as a source of meat or eggs for human consumption and are usually found in barnyards, hatcheries, etc. The concept is differentiated from BIRD DISEASES which is for diseases of birds not considered poultry and usually found in zoos, parks, and the wild.
A species in the group RETICULOENDOTHELIOSIS VIRUSES, AVIAN of the genus GAMMARETROVIRUS that causes a chronic neoplastic and a more acute immunosuppressive disease in fowl.
Connective tissue tumors, affecting primarily fowl, that are usually caused by avian sarcoma viruses.
Specific molecular components of the cell capable of recognizing and interacting with a virus, and which, after binding it, are capable of generating some signal that initiates the chain of events leading to the biological response.
Common name for two distinct groups of BIRDS in the order GALLIFORMES: the New World or American quails of the family Odontophoridae and the Old World quails in the genus COTURNIX, family Phasianidae.
A genus of BIRDS in the family Phasianidae, order GALLIFORMES, containing the common European and other Old World QUAIL.
DNA sequences that form the coding region for retroviral enzymes including reverse transcriptase, protease, and endonuclease/integrase. "pol" is short for polymerase, the enzyme class of reverse transcriptase.
A transmissible viral disease of birds caused by avian herpesvirus 2 (HERPESVIRUS 2, GALLID) and other MARDIVIRUS. There is lymphoid cell infiltration or lymphomatous tumor formation in the peripheral nerves and gonads, but may also involve visceral organs, skin, muscle, and the eye.
Duplex DNA sequences in eukaryotic chromosomes, corresponding to the genome of a virus, that are transmitted from one cell generation to the next without causing lysis of the host. Proviruses are often associated with neoplastic cell transformation and are key features of retrovirus biology.
DNA sequences that form the coding region for the viral envelope (env) proteins in retroviruses. The env genes contain a cis-acting RNA target sequence for the rev protein (= GENE PRODUCTS, REV), termed the rev-responsive element (RRE).
A vascular anomaly due to proliferation of BLOOD VESSELS that forms a tumor-like mass. The common types involve CAPILLARIES and VEINS. It can occur anywhere in the body but is most frequently noticed in the SKIN and SUBCUTANEOUS TISSUE. (from Stedman, 27th ed, 2000)
Deoxyribonucleic acid that makes up the genetic material of viruses.
A general term for various neoplastic diseases of the lymphoid tissue.
The type species of the genus MARDIVIRUS in the family HERPESVIRIDAE. It is the etiologic agent of MAREK DISEASE, infecting domestic fowl and wild birds.
Malignant neoplasms composed of MACROPHAGES or DENDRITIC CELLS. Most histiocytic sarcomas present as localized tumor masses without a leukemic phase. Though the biological behavior of these neoplasms resemble lymphomas, their cell lineage is histiocytic not lymphoid.
DNA sequences that form the coding region for proteins associated with the viral core in retroviruses. gag is short for group-specific antigen.
A species of ALPHARETROVIRUS causing anemia in fowl.
Viruses which enable defective viruses to replicate or to form a protein coat by complementing the missing gene function of the defective (satellite) virus. Helper and satellite may be of the same or different genus.
Sequences of DNA or RNA that occur in multiple copies. There are several types: INTERSPERSED REPETITIVE SEQUENCES are copies of transposable elements (DNA TRANSPOSABLE ELEMENTS or RETROELEMENTS) dispersed throughout the genome. TERMINAL REPEAT SEQUENCES flank both ends of another sequence, for example, the long terminal repeats (LTRs) on RETROVIRUSES. Variations may be direct repeats, those occurring in the same direction, or inverted repeats, those opposite to each other in direction. TANDEM REPEAT SEQUENCES are copies which lie adjacent to each other, direct or inverted (INVERTED REPEAT SEQUENCES).
The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence.
The functional hereditary units of VIRUSES.
Methods of maintaining or growing biological materials in controlled laboratory conditions. These include the cultures of CELLS; TISSUES; organs; or embryo in vitro. Both animal and plant tissues may be cultured by a variety of methods. Cultures may derive from normal or abnormal tissues, and consist of a single cell type or mixed cell types.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
Viruses which lack a complete genome so that they cannot completely replicate or cannot form a protein coat. Some are host-dependent defectives, meaning they can replicate only in cell systems which provide the particular genetic function which they lack. Others, called SATELLITE VIRUSES, are able to replicate only when their genetic defect is complemented by a helper virus.
Genes whose gain-of-function alterations lead to NEOPLASTIC CELL TRANSFORMATION. They include, for example, genes for activators or stimulators of CELL PROLIFERATION such as growth factors, growth factor receptors, protein kinases, signal transducers, nuclear phosphoproteins, and transcription factors. A prefix of "v-" before oncogene symbols indicates oncogenes captured and transmitted by RETROVIRUSES; the prefix "c-" before the gene symbol of an oncogene indicates it is the cellular homolog (PROTO-ONCOGENES) of a v-oncogene.
Ribonucleic acid that makes up the genetic material of viruses.
Retroviruses that have integrated into the germline (PROVIRUSES) that have lost infectious capability but retained the capability to transpose.
An enzyme that synthesizes DNA on an RNA template. It is encoded by the pol gene of retroviruses and by certain retrovirus-like elements. EC 2.7.7.49.
Inflammation of the synovial lining of a tendon sheath. Causes include trauma, tendon stress, bacterial disease (gonorrhea, tuberculosis), rheumatic disease, and gout. Common sites are the hand, wrist, shoulder capsule, hip capsule, hamstring muscles, and Achilles tendon. The tendon sheaths become inflamed and painful, and accumulate fluid. Joint mobility is usually reduced.
Established cell cultures that have the potential to propagate indefinitely.
A phenomenon in which infection by a first virus results in resistance of cells or tissues to infection by a second, unrelated virus.
The process of intracellular viral multiplication, consisting of the synthesis of PROTEINS; NUCLEIC ACIDS; and sometimes LIPIDS, and their assembly into a new infectious particle.
Family of RNA viruses that infects birds and mammals and encodes the enzyme reverse transcriptase. The family contains seven genera: DELTARETROVIRUS; LENTIVIRUS; RETROVIRUSES TYPE B, MAMMALIAN; ALPHARETROVIRUS; GAMMARETROVIRUS; RETROVIRUSES TYPE D; and SPUMAVIRUS. A key feature of retrovirus biology is the synthesis of a DNA copy of the genome which is integrated into cellular DNA. After integration it is sometimes not expressed but maintained in a latent state (PROVIRUSES).
Production of new arrangements of DNA by various mechanisms such as assortment and segregation, CROSSING OVER; GENE CONVERSION; GENETIC TRANSFORMATION; GENETIC CONJUGATION; GENETIC TRANSDUCTION; or mixed infection of viruses.
The type species of DELTARETROVIRUS that causes a form of bovine lymphosarcoma (ENZOOTIC BOVINE LEUKOSIS) or persistent lymphocytosis.
Insertion of viral DNA into host-cell DNA. This includes integration of phage DNA into bacterial DNA; (LYSOGENY); to form a PROPHAGE or integration of retroviral DNA into cellular DNA to form a PROVIRUS.
An inheritable change in cells manifested by changes in cell division and growth and alterations in cell surface properties. It is induced by infection with a transforming virus.
Proteins from the family Retroviridae. The most frequently encountered member of this family is the Rous sarcoma virus protein.
Warm-blooded VERTEBRATES possessing FEATHERS and belonging to the class Aves.
Layers of protein which surround the capsid in animal viruses with tubular nucleocapsids. The envelope consists of an inner layer of lipids and virus specified proteins also called membrane or matrix proteins. The outer layer consists of one or more types of morphological subunits called peplomers which project from the viral envelope; this layer always consists of glycoproteins.
Connective tissue cells which secrete an extracellular matrix rich in collagen and other macromolecules.
Cell changes manifested by escape from control mechanisms, increased growth potential, alterations in the cell surface, karyotypic abnormalities, morphological and biochemical deviations from the norm, and other attributes conferring the ability to invade, metastasize, and kill.
Visible morphologic changes in cells infected with viruses. It includes shutdown of cellular RNA and protein synthesis, cell fusion, release of lysosomal enzymes, changes in cell membrane permeability, diffuse changes in intracellular structures, presence of viral inclusion bodies, and chromosomal aberrations. It excludes malignant transformation, which is CELL TRANSFORMATION, VIRAL. Viral cytopathogenic effects provide a valuable method for identifying and classifying the infecting viruses.
DNA molecules capable of autonomous replication within a host cell and into which other DNA sequences can be inserted and thus amplified. Many are derived from PLASMIDS; BACTERIOPHAGES; or VIRUSES. They are used for transporting foreign genes into recipient cells. Genetic vectors possess a functional replicator site and contain GENETIC MARKERS to facilitate their selective recognition.
The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION.
The restriction of a characteristic behavior, anatomical structure or physical system, such as immune response; metabolic response, or gene or gene variant to the members of one species. It refers to that property which differentiates one species from another but it is also used for phylogenetic levels higher or lower than the species.
Widely used technique which exploits the ability of complementary sequences in single-stranded DNAs or RNAs to pair with each other to form a double helix. Hybridization can take place between two complimentary DNA sequences, between a single-stranded DNA and a complementary RNA, or between two RNA sequences. The technique is used to detect and isolate specific sequences, measure homology, or define other characteristics of one or both strands. (Kendrew, Encyclopedia of Molecular Biology, 1994, p503)
Substances elaborated by viruses that have antigenic activity.
The insertion of recombinant DNA molecules from prokaryotic and/or eukaryotic sources into a replicating vehicle, such as a plasmid or virus vector, and the introduction of the resultant hybrid molecules into recipient cells without altering the viability of those cells.
The complete genetic complement contained in a DNA or RNA molecule in a virus.

Identification of key residues in subgroup A avian leukosis virus envelope determining receptor binding affinity and infectivity of cells expressing chicken or quail Tva receptor. (1/162)

To better understand retroviral entry, we have characterized the interactions between subgroup A avian leukosis virus [ALV(A)] envelope glycoproteins and Tva, the receptor for ALV(A), that result in receptor interference. We have recently shown that soluble forms of the chicken and quail Tva receptor (sTva), expressed from genes delivered by retroviral vectors, block ALV(A) infection of cultured chicken cells ( approximately 200-fold antiviral effect) and chickens (>98% of the birds were not infected). We hypothesized that inhibition of viral replication by sTva would select virus variants with mutations in the surface glycoprotein (SU) that altered the binding affinity of the subgroup A SU for the sTva protein and/or altered the normal receptor usage of the virus. Virus propagation in the presence of quail sTva-mIgG, the quail Tva extracellular region fused to the constant region of the mouse immunoglobulin G (IgG) protein, identified viruses with three mutations in the subgroup A hr1 region of SU, E149K, Y142N, and Y142N/E149K. These mutations reduced the binding affinity of the subgroup A envelope glycoproteins for quail sTva-mIgG (32-, 324-, and 4,739-fold, respectively) but did not alter their binding affinity for chicken sTva-mIgG. The ALV(A) mutants efficiently infected cells expressing the chicken Tva receptor but were 2-fold (E149K), 10-fold (Y142N), and 600-fold (Y142N/E149K) less efficient at infecting cells expressing the quail Tva receptor. These mutations identify key determinants of the interaction between the ALV(A) glycoproteins and the Tva receptor. We also conclude from these results that, at least for the wild-type and variant ALV(A)s tested, the receptor binding affinity was directly related to infection efficiency.  (+info)

Role of calcium in protein folding and function of Tva, the receptor of subgroup A avian sarcoma and leukosis virus. (2/162)

Tva is the cellular receptor for subgroup A avian sarcoma and leukosis virus (ASLV-A). The viral receptor function of Tva is determined by a 40-residue cysteine-rich motif called the LDL-A module. In this study, we expressed and purified the wild-type (wt) Tva LDL-A module as well as several mutants and examined their in vitro folding properties. We found that, as for other LDL-A modules, correct folding and structure of the Tva LDL-A module is Ca2+ dependent. When calcium was present during in vitro protein folding, the wt module was eluted as a single peak by reverse-phase high-pressure liquid chromatography. Furthermore, two-dimensional nuclear magnetic resonance (NMR) spectroscopy gave well-dispersed spectra in the presence of calcium. In contrast, the same protein folded in vitro in the absence of calcium was eluted as multiple broad peaks and gave a poorly dispersed NMR spectrum in the presence of calcium. The calcium affinity (Kd) of the Tva LDL-A module, determined by isothermal titration calorimetry, is approximately 40 microM. Characterization of several Tva mutants provided further evidence that calcium is important in protein folding and function of Tva. Mutations of the Ca2+-binding residues (D46A and E47A) completely abrogated the Ca2+-binding ability of Tva, and the proteins were not correctly folded. Interestingly, mutations of two non-calcium-binding residues (W48A and L34A) also exerted adverse effect on Ca2+-dependent folding, albeit to a much less extent. Our results provide new insights regarding the structure and function of Tva in ASLV-A entry.  (+info)

Isolation and characterization of nuclear RNA polymerase II from chicken myeloblastosis cells. (3/162)

Nuclear RNA polymerases of chicken myeloblastosis cells were solubilized and fractionated by diethylaminoethyl-Sephades A25 column chromatography. Both alpha-amanitin-insenstitive (polymerase I) and- sensitive (polymerase II) species were isolated. Polymerase activity, contained two peaks of enzyme (IIa and IIb), which were further purified by glycerol gradient centrifugation. The partially purified enzymes were characterized by their requirement of four nucleoside triphosphates and metal ions and by their sensitivity to several inhibitors. The enzymes were compared with RNA polymearases derived from normal chickent bone marrow cells,and the total extractable myeloblastosis than in bone marrow cells. Polymearse II from both cell types was shown to be sensitive to cytosine arabinoside triphosphate inhibiton.  (+info)

Avian erythroleukemia: a model for corepressor function in cancer. (4/162)

Transcriptional regulation at the level of chromatin plays crucial roles during eukaryotic development and differentiation. A plethora of studies revealed that the acetylation status of histones is controlled by multi-protein complexes containing (de)acetylase activities. In the current model, histone deacetylases and acetyltransferases are recruited to chromatin by DNA-bound repressors and activators, respectively. Shifting the balance between deacetylation, i.e. repressive chromatin and acetylation, i.e. active chromatin can lead to aberrant gene transcription and cancer. In human acute promyelocytic leukemia (APL) and avian erythroleukemia (AEL), chromosomal translocations and/or mutations in nuclear hormone receptors, RARalpha [NR1B1] and TRalpha [NR1A1], yielded oncoproteins that deregulate transcription and alter chromatin structure. The oncogenic receptors are locked in their 'off' mode thereby constitutively repressing transcription of genes that are critical for differentiation of hematopoietic cells. AEL involves an oncogenic version of the chicken TRalpha, v-ErbA. Apart from repression by v-ErbA via recruitment of corepressor complexes, other repressors and corepressors appear to be involved in repression of v-ErbA target genes, such as carbonic anhydrase II (CAII). Reactivation of repressed genes in APL and AEL by chromatin modifying agents such as inhibitors of histone deacetylase or of methylation provides new therapeutic strategies in the treatment of acute myeloid leukemia.  (+info)

Heterophil function and resistance to staphylococcal challenge in broiler chickens naturally infected with avian leukosis virus subgroup J. (5/162)

Avian leukosis virus subgroup J has a high tropism for myeloid lineage cells and frequently induces neoplastic transformation of myelocytes. The impact of congenital avian leukosis virus subgroup J infection on the function of circulating heterophils and susceptibility to staphylococcal infection was investigated. Six-week-old broiler chickens negative for exogenous avian leukosis viruses or congenitally infected with avian leukosis virus subgroup J were inoculated intravenously with 10(6) colony-forming units of Staphylococcus aureus, and pre- and postinoculation heterophil function was assessed. All chickens developed a leukocytosis with heterophilia after inoculation, but total leukocyte and heterophil counts were significantly higher in leukosis-negative chickens than in virus-infected chickens. Tenosynovitis was more severe in leukosis-negative chickens, and 2/10 (20%) of the virus-infected chickens had no histologic evidence of tenosynovitis. Osteomyelitis in the tibiotarsus or tarsometatarsus developed in 5/10 (50%) of the chickens in each group. S. aureus was recovered from the hock joint of 6/10 (60%) of the chickens in each group. Heterophils from all chickens exhibited similar phagocytic ability pre- and postinoculation. Heterophils from virus-infected chickens exhibited less bactericidal ability preinoculation than did heterophils from leukosis-negative chickens. However, postinoculation bactericidal ability was similar in both groups. Avian leukosis virus subgroup J provirus was present in heterophils isolated from congenitally infected chickens. Heterophils isolated from broiler chickens congenitally infected with avian leukosis virus subgroup J exhibit no significant functional deficits, and infected and uninfected chickens exhibit similar susceptibility to staphylococcal infection.  (+info)

Localization of avian leukosis virus subgroup J in naturally infected chickens by RNA in situ hybridization. (6/162)

The novel subgroup J of avian leukosis virus (ALV-J) has emerged as a significant cause of myeloid neoplasia and weight suppression in broiler chickens. We investigated viral tropism using RNA in situ hybridization (ISH) in naturally infected chickens. Formalin-fixed tissues were collected from 12-day-old embryos (seven infected, two control) and from 0-week-old (four infected, one control), 3-week-old (five infected, one control), 6-week-old (five infected, one control), and 9-week-old (10 infected, two control) chickens naturally infected with ALV-J in ovo. A 636-base antisense riboprobe complementary to the 3' and 5' ends of the pol and env viral genes, respectively, was constructed. Strong positive staining was present in cardiac myocytes, Purkinje fibers, vascular and pulmonary smooth muscle, renal glomeruli, distal tubules, and pituitary glands. Light staining was present in gastrointestinal smooth muscle, thyroid and adrenal glands, and follicular medullae in the cloacal bursa. Staining was not present in any hematopoietic precursors. Tissues from newly hatched chicks exhibited the strongest and most consistent staining, whereas staining in embryos was minimal. RNA ISH confirmed the presence of ALV-J-specific nucleic acid within cytoplasmic inclusions in cardiac myocytes, Purkinje fibers, pituitary glands, and renal glomeruli. Viral tropism for cardiac myocytes and Purkinje fibers may relate pathogenetically to the cardiomyopathy and congestive heart failure described in index chicken flocks infected with ALV-J. Viral tropism for endocrine organs may relate pathogenetically to the weight suppression associated with infection.  (+info)

Avian bic, a gene isolated from a common retroviral site in avian leukosis virus-induced lymphomas that encodes a noncoding RNA, cooperates with c-myc in lymphomagenesis and erythroleukemogenesis. (7/162)

bic is a novel gene identified at a common retroviral integration site in avian leukosis virus-induced lymphomas and has been implicated as a collaborator with c-myc in B lymphomagenesis. It lacks an extensive open reading frame and is believed to function as an untranslated RNA (W. Tam, Gene 274:157-167, 2001; W. Tam, D. Ben-Yehuda, and W. S. Hayward, Mol. Cell. Biol. 17:1490-1502, 1997). The oncogenic potential of bic, particularly its ability to cooperate with c-myc in oncogenesis, was tested directly by expressing c-myc and bic, either singly or in pairwise combination, in cultured chicken embryo fibroblasts (CEFs) and in chickens using replication-competent retrovirus vectors. Coexpression of c-myc and bic in CEFs caused growth enhancement of cells. Most importantly, chick oncogenicity assays demonstrated that bic can cooperate with c-myc in lymphomagenesis and erythroleukemogenesis. The present study provides direct evidence for the involvement of untranslated RNAs in oncogenesis and provides further support for the role of noncoding RNAs as riboregulators.  (+info)

Cardiomyopathy in broiler chickens congenitally infected with avian leukosis virus subgroup J. (8/162)

Dilated cardiomyopathy and ascites in broiler chickens are frequently associated with rapid growth and pulmonary hypertension, but can be associated with some avian leukosis virus (ALV) infections. The novel subgroup J of ALV has a high cardiac tropism, but dilated cardiomyopathy has not been reported previously. We report a dilated cardiomyopathy incidence of 11.1% in broiler chickens congenitally infected with ALV subgroup J (ALV-J). Gross lesions included severe body weight suppression, cardiomegaly with biventricular dilation, right ventricular hypertrophy, visceral congestion, and ascites. Cardiac myocytes and Purkinje fibers contained 2- to 10-microm intracytoplasmic magenta inclusions that contained ALV-J-specific nucleic acid. Ultrastructurally, inclusions contained ribosomes and immature virions and were associated with myofibril disruption and disarray. Peracute centrilobular hepatic necrosis was present in most cases. ALV-J-associated cardiomyopathy may involve a direct viral effect on cardiac myocytes and Purkinje fibers.  (+info)

Incidence of avian leukosis virus infection in broiler stocks and its effect on early growth.: Twenty-eight broiler breeder flocks were tested for avian leukosi
Subgroups A, B, E and J are the major subgroups of avian leukosis virus (ALV) infecting chickens. ALV infection has become endemic in China and has a significant negative effect on the poultry industry. Consequently, there is an urgent need for a specific, sensitive and rapid method for diagnosis and eradication of ALV. Therefore, we developed a simple and rapid real-time loop-mediated isothermal amplification (LAMP) reaction for the timely detection of the common ALV subgroups, whereby the amplification can be obtained in 35 min under isothermal conditions at 63 °C, ability to specific, sensitive and rapid detect all the common ALV subgroups. A set of four specific primers was designed to target the sequences of the pol gene of ALV, and the loop-mediated isothermal amplification (LAMP) assay were developed and compared with PCR and virus isolation methods. The results from specificity of the LAMP assay showed that only target ALVs DNA was amplified. The LAMP assay demonstrated a sensitivity of 20
Morbidity is low but mortality high. Mortality tends to be chronically higher than normal for a prolonged period. Egg production is somewhat reduced. There may be increased susceptibility to other infectious diseases due to damage to the immune system. Vertical transmission is most important by infection of the egg white in infected breeders (who are long-term carriers), lateral transmission is poor but infection may occur by the faecal-oral route, especially in young birds. In lymphoid leukosis the incubation period is about 4-6 months; it may be as short as 6 weeks for some of the other manifestations. The causative viruses are rapidly inactivated at ambient temperature and on exposure to most disinfectants ...
Chicken endogenous viruses, ALVE (Avian Leukosis Virus subgroup E), are inherited as LTR (long terminal repeat) retrotransposons, which are negatively correlated with disease resistance, and any changes in DNA methylation may contribute to the susceptibility to neoplastic disease. The relationship between ALVE methylation status and neoplastic disease in the chicken is undefined. White Leghorn inbred lines 72 and 63 at the ADOL have been respectively selected for resistance and susceptibility to tumors that are induced by avian viruses. In this study, the DNA methylation patterns of 3∼6 CpG sites of four conserved regions in ALVE, including one unique region in ALVE1, the promoter region in the TVB (tumor virus receptor of ALV subgroup B, D and E) locus, were analyzed in the two lines using pyrosequencing methods in four tissues, i.e., liver, spleen, blood and hypothalamus. A significant CpG hypermethylation level was seen in line 72 in all four tissues, e.g., 91.86±1.63% for ALVE region2 in blood,
It is important for us to know that the more chemical additives are contained in food, the less beneficial it is for our health. These chemical additives are used to add flavour, colour or aroma to the food and even a longer shelf life. The E code has been instituted by the European Union to indicate the presence of an approved particular chemical additive. Independent of whether the E trace elements are approved by the European Union, the more products we use that contain the E elements, the more we burden our health, especially if we consume them on a daily basis. The catalogue below is indicative and we hope that it will make us all more careful us consumers: we need to look very carefully at the ingredients of the products to be sure that they do not contain E elements ...
By Martin Ficken, DVM, PhD. Recently, one dead, female, Cream Legbar chicken was presented to the Texas A&M Veterinary Medical Diagnostic Laboratory (TVMDL) in Gonzales for necropsy. The bird had excellent feathering, was in good post-mortem condition, and weighed 1.06 kilograms.. Upon gross examination, mild breast muscle atrophy was present.The liver was enlarged approximately five times normal size and contained small white coalescing foci interpreted as neoplastic cells (Figure 1). The spleen was of normal size, but contained similar white foci.The kidney contained a nodular mass in the middle of the right renal chain that measured approximately 2 cm in diameter (Figure 2).The bursa contained a nodular mass that measured approximately 1 cm in diameter (Figure 3).The right lung was diffusely congested and edematous.All other systems contained no significant lesions.. Microscopic sections of liver were characterized by numerous coalescing foci of a uniform population of lymphoblasts that had ...
TY - JOUR. T1 - Leukosis mathematical model. AU - Kolpak, Eugeny Petrovich. AU - Abuzyarova, Raisa Tagirovna. AU - Kabrits, Sergey Alexandrovich. PY - 2018/1/1. Y1 - 2018/1/1. N2 - Aim and Scope: The present study is about developing the mathematical model of leukosis according to modern data on hematopoiesis among mammals. Materials and Methods: Three types of cells are considered in the model, one of which is represented by leukemic ones. The interaction of cells is considered as the competition for the functional space of dividing cells. For leukemia cells are the cells dividing at a higher speed as compared to all the others. Results and Discussion: The model of leukemic cells replacement with donor cells is considered as the introduction of more active cells than leukemic ones. The model is represented by the Cauchy problem for the system of ordinary differential equations. Conclusion: The violation of hematopoiesis functions is compared with a leading parameter change, which transfers the ...
Its another beautiful day on the Old McDonald|farm, and having fed and watered the horses, cows, sheep, and other assorted barnyard animals, you decide...
group-specific-antigen definition: Noun (plural group specific antigens) 1. The genetic material that codes for the structural protein of a retrovirus...
Ꭺt the time of the MMA match, it is very important tһat you know everything about the activity. Make certain that you are educated on all the kinds of combating concerned in MMA. You ought to be aware tһat each fighter has its own specialty аnd advаntagе in the game while placing your bets. Think about examining the past fights to determine out which fighter won with what bеnefit. How it is carried out? Nicely, initial you will juѕt need to get all the info on all elements such as specific benefits, peгform ѕtyles ᧐r aⅼl theѕe elements that have offered an upper hand to the fighter throughout the match.. Beyond records, changes, and scratches, how can you choose the correct picks in horseraсing? Cеrtainly not by choosing the horse because yߋu like his name-thatѕ never great, unless the horsеs title is Wingnut-for ѕоme reason we liкe that name!. The ⲟnline Dress up gameѕ haѕ stuffеd new craze in the younger girls and they all want to play them. They are ...
Glynn, J P.; Halpern, B L.; and Fefer, A, An immunochemotherapeutic system for the treatment of a transplanted moloney virus-induced lymphoma in mice. (1969). Subject Strain Bibliography 1969. 913 ...
Tao of No Stress: Three Simple Paths [Paperback]- Stuart Alve Olson (Author) Teaches the three paths that Taoist masters have used for centuries to cr
Avian sarcoma leukosis virus (ASLV) is an endogenous retrovirus that infects and can lead to cancer in chickens; experimentally it can infect other species of birds and mammals. ASLV replicates in chicken embryo fibroblasts, the cells that contribute to the formation of connective tissues. Lymphoid leukosis is the most common form of this disease and with typical presentation of gradual onset, persistent low mortality, and neoplasia of the bursa. Subgroups A, B, E and J are the major subgroups of avian leukosis virus (ALV) infecting chickens. ALV infection has become endemic in many countries and has a significant negative effect on the poultry industry.. ...
HPRS-103, the prototype of avian leukosis virus (ALV) subgroup J, was isolated in 1989 from meat-type chickens from commercial flocks where it induces myelocytic myeloid leukosis (ML). The HPRS-103 env gene differs considerably from other ALV subgroups but shows high identity (75-97%) to env-like sequences of the different members of the EAV family of endogenous avian retroviruses. Recently, we have isolated several viruses related to HPRS-103 from cases of ML. Although these isolates showed properties of ALV subgroup J, the majority of them resisted neutralization by HPRS-103-specific serum, suggesting antigenic variation. The nucleotide sequence of the env gene of the variant viruses showed several substitutions resulting in amino acid changes especially clustered in the variable regions hr1, hr2 and vr3. Analysis of the data suggests that selection pressure, probably from the immune response, is driving the antigenic variation among the isolates. Phylogenetic analysis of the sequences showed the
Bovine Leukosis is a disease caused by the Bovine Leukosis virus (BLV). This is a blood borne disease that dwells in the lymphocytes (white blood cells) in cattle. Only 5% of infected animals will exhibit the clinical symptoms of developing tumors in lymphatic tissue. The prevalence ofleukosis is wide spread. It is fairly common to find herds with a prevalence of 80-90%, however not very common to find herds that are completely free of leukosis. According to the NAHMS 96 study, 88.5% of dairy herds and 38.7% of beef herds are infected. Transmission occurs by the transfer of bodily fluids that contain infected white cells (blood, colostrum, milk). Anything from reusing without sanitizing contaminated needles, syringes, breeding sleeves, dehorners, or balling guns can transmit leukosis. Transmission can also occur through colostrum or to a fetus in utero. ...
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above. ...
Induction of lymphomas in the bursa of Fabricius of chickens by replication competent, non-transforming avian retroviruses (Avian Leukosis Virus, ALV) is both an economically significant, naturally...
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Edited by John M. Coffin, Tufts University School of Medicine, Boston, MA (received for review February 24, 2004) ArticleFigures SIInfo gt;5 kDa in size are required. Furthermore, later steps of avian sarcoma and leukosis virus reverse tran
I was out at the Topeka Zoological Garden trying out a new combination: K 3 + Pentax 16 - 85 mm zoom + focal 2x mc converter. (I just bought the used
Please note - this search only finds Suzuki teachers that are interested in taking on new students. Not all ESA members are listed - some teachers have opted out.. ...
Avian leukosis virus (ALV)-induced osteopetrosis is a proliferative disorder of the bone affecting the growth and differentiation of osteoblasts. Osteopetrosis is a polyclonal disease in which cells of the bone contain, on average, multiple viral DNA copies. Osteopetrotic bone is also characterized by the accumulation of unintegrated viral DNA, suggesting an atypical life cycle of the virus in the infected osteoblasts. To better understand virus-host interactions in the induction of osteopetrosis by ALVs, infected chick osteoblast cultures and osteopetrotic bone were examined for aspects of the virus life cycle and effects of infection on osteoblast function. Levels of infection and virus expression were compared in cultured osteoblasts and osteopetrotic bone. Osteopetrotic bone contained higher levels of viral DNA and correspondingly higher levels of viral proteins than infected osteoblast cultures, suggesting a higher viral load in the diseased bone. A significant level of mature Gag protein was
South Africas largest zoo, the National Zoological Garden of South Africa (NZG), on Wednesday launched a recycling pilot project aimed at job creation and addressing the massive litter problem which its thousands of annual visitors leave in their wake.. Should the programme prove successful, it could also be rolled out at the Mokopane Biodiversity Centre in Limpopo.. The pilot project, which was founded in conjunction with the national PET Recycling Company (PETCO) and the City of Tshwane, will be operated by the Umkariso Women in Water cooperative.. The NZGs acting manager for commercial services and business development, Marcel Singh, said five previously unemployed Tshwane residents had been trained and appointed to collect and sort the high volumes of recyclable materials generated daily by the zoos restaurants, curio shops, offices, research facilities, animal kitchens and veterinary hospital.. ...
TY - JOUR. T1 - Disease tropism of c-erbB. T2 - Effects of carboxyl-terminal tyrosine and internal mutations on tissue-specific transformation. AU - Pelley, R. J.. AU - Maihle, Nita Jane. AU - Boerkoel, C.. AU - Shu, H. K.. AU - Carter, T. H.. AU - Moscovici, C.. AU - Kung, H. J.. PY - 1989/1/1. Y1 - 1989/1/1. N2 - Avian leukosis virus induces erythroleukemia in chickens by proviral insertional mutation of the proto-oncogene c-erbB. The product of the insertionally activated c-erbB locus lacks the extracellular ligand-binding domain and is strictly leukemogenic. It has previously been demonstrated that the disease spectrum associated with aberrant c-erbB expression can be expanded by structural perturbation of the cytoplasmic domain of this protein. In this report, we use mutagenesis and retroviral vectors to identify specific mutations in the carboxyl-terminal domain of the insertionally activated c-erbB product that are sufficient to activate the sarcomagenic potential of this protein. ...
In addition to neoplasias caused in chickens by helper viruses of the avian myeloblastosis virus (AMV) complex, acute myeloblastic leukemia is induced by a defective leukemogenic component. To...
Traditionally, virus isolates have been named most commonly for the disease from which they were isolated - e.g. influenza, poliomyelitis, visna, foot-and-mouth disease, and the like. A smaller number are named for the place of isolation - Coxsackie, Sindbis, and Sendai viruses are a few examples, and a mercifully small number are named for their discoverers - alone or in combination with other features - such as Epstein-Barr virus, Rous sarcoma virus, etc. With retroviruses, it is also usual to append the species of origin to the name - avian leukosis virus, human T-cell lymphoma virus, baboon endogenous virus, etc. Unlike most other organisms, the naming of new virus isolates has usually been a trivial prerogative of the isolator, and not subject to review by other workers in the field . This has, in general, caused little difficulty so long as the names chosen were novel and did not presuppose unproven relationships. Significant confusion has been created in the past, however, by injudicious ...
A team led by Xin Li, Ph.D., assistant professor in the departments of Biochemistry and Biophysics and Urology at the University of Rochester School of Medicine and Dentistry, analyzed rooster testes to find out.. Chickens acquire and harbor a wide variety of viruses. When a virus infects a host, like a chicken, it does everything it can to survive. One method of survival is inserting its genetic material into the chickens genome. Over generations, the inserted virus accumulates mutations and eventually becomes harmless to the animal, but its still a part of the chickens genetic material.. Lis team focused on avian leukosis virus, which commonly infects and can lead to cancer in domestic chickens. Through molecular and genetic analysis, they discovered that chickens turn these old, existing viruses into piRNA-producing machines. When faced with a new avian leucosis virus (there are many different viruses in the family), the old viruses pump out piRNAs that defend the germ cells, ensuring the ...
Looking for Erythroblastosis faetalis? Find out information about Erythroblastosis faetalis. a disease manifested at birth or shortly thereafter and generally caused by incompatibility of the mothers blood with that of the fetus with respect to the... Explanation of Erythroblastosis faetalis
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Avian myeloblastosis ATCC ® VR-1542AS-Gt™ Designation: antiserum against AMV RT [NCI HE 599] Application: goat antiserum against the Avian Myeloblastosis Virus (AMV) Reverse Transcriptase (RT)
Apffel, C A. and Peters, J H., Successful heterotransplantation of l1210 mouse leukosis into un- treated adult hamsters. Abstr. (1968). Subject Strain Bibliography 1968. 45 ...
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Looking for erythroblastoses? Find out information about erythroblastoses. The abnormal presence of erythroblasts in the blood. A virus disease of birds; considered to be part of the avian leukosis complex in which there is an... Explanation of erythroblastoses
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used to derive intake values did not include consideration for other applications. However, with the increasing globalization of information and the identification of a variety of factors specific to different population subgroups (e.g ...
This material is from the book A Syllabus of Human Hemoglobin Variants (1996) by Titus H.J. Huisman, Marianne F.H. Carver, and Georgi D. Efremov, published by The Sickle Cell Anemia Foundation in Augusta, GA, USA. Copyright © 1996 by Titus H.J. Huisman. All rights reserved. Neither this work nor any part may be reproduced or transmitted in any form or by any means, electronic or mechanical, microfilming and recording, or by any information storage and retrieval systems, without written permission. ...
TY - JOUR. T1 - Detection of reticuloendotheliosis virus by immunohistochemistry and in situ hybridization in experimentally infected Japanese quail embryos and archived formalin-fixed and paraffin-embedded tumours. AU - Santos, Vitor L S L. AU - Williams, Susan M.. AU - Zavala, Guillermo. AU - Barbosa, Taylor. AU - Zhang, Jian. AU - Cheng, Sunny. AU - Shivaprasad, H L. AU - Hafner, Scott. AU - Fadly, Aly. AU - Santos, Renato L.. AU - Brown, Corrie C.. PY - 2008/8. Y1 - 2008/8. N2 - Reticuloendotheliosis virus (REV) infection can result in immunosuppression, a runting syndrome, high mortality, acute reticulum cell neoplasia, or T-cell and/or B-cell lymphomas, in a variety of domestic and wild birds. Histopathological changes in REV infection are not sufficient to differentiate it from avian lymphoid leukosis and Mareks disease, and currently there are no available in situ diagnostic methods for detection of active REV presence in pathologic specimens. To develop immunohistochemistry and in situ ...
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Description of disease Erythroblastosis fetalis. Treatment Erythroblastosis fetalis. Symptoms and causes Erythroblastosis fetalis Prophylaxis Erythroblastosis fetalis
A polymerase chain reaction was developed to detect the proviral DNA of bovine leukimia virus in bovine lymphocytes. Milk and blood samples from infected and uninfected cows were tested. None of the bovine leukosis free animals gave a positive response and 58% of the infected cows showed positive signals. When the DNAs 25ul of blood. 25.000 lymphocytes or 1.000 lymphocytes were amplified. positive results were recorded more frequently in cows with persistent lymphocytes than in cows with normal lymphocyte counts ...
Previous reports have shown that spleen cells from nonimmune adult mice of certain strains do regularly kill Moloney leukemia virus-induced lymphomas in short-term 51Cr release assays. This naturally occuring killer (NK) cell had low adherent properties and had the morphological appearance of a lymphocyte. Still it lacked surface characteristics of mature T or B lymphocytes. In the present report a functional study was carried out, comparing in parallel the NK system, the T-cell killing across an H-2 barrier (anti-P815), and the antibody-dependent cell-mediated chicken red blood cell (CRBC) system. In contrast to the effector cells in the CRBC system, the NK cells were insensitive to erythrocyte antibody complement (EAC) rosette depletion and would pass through nylon wool columns. NK activity was not inhibited by the presence of heat-aggregated human or mouse gamma globulin, in contrast to the strong inhibition noted in the CRBC system. Sensitivity to trypsin pretreatment was noted in the NK ...
At the first baby, there are no antibodies against Rh+, while birth, blood of the baby and the mother mixes and there are some antibodies produced, And those antibodies make the second baby die or born with some abnormalities. IgG can pass through placenta. Actually erythroblastosis fetalis can also be defined as the lysis of fetal RBCs by maternal IgGs ...
Erythroblastosis fetalis occurs due to Rh incompatibility between the mother and the fetus, resulting in severe anemia and sometimes death of the fetus.
In fact, everyone loves them - and not only for the opportunity to see strange animals, birds, insects and fish, but also for a great chance to have fun and informative free time.. And also because the zoo in each city has its own unique corner of communication between people and wildlife.. Now many travel companies take this into account and include visiting zoos in their excursion programs.. We present you the five most interesting zoos in the world:. Berlin Zoo (Berlin Zoological Garden). Berlin Zoo Continue reading →. ...
The Northern and Southern White Rhinos (Ceratotherium cottoni and C. simum) have the most developed social system among all the rhinoceros species. Until recently, little has been known about their communication and social behaviour. This paper presents the results of four recent studies involving research into the social behaviour and vocal and olfactory communication of these species both in the wildlife reserves in South Africa and in zoological gardens. ...
A TOTAL of 64 pupils and four teachers from Khwezi Primary in Sobantu were treated to an outing to the Natal Zoological Gardens last week, courtesy of Bluff Meat Supply.
In July 2009, a 14-yr-old male caracal (Caracal caracal) at the National Zoological Gardens of South Africa was found, on abdominal ultrasound, to have a single large cystolith. The cystolith was removed, and the composition was determined to be 100% cystine. Blood and urine samples were also collected from three other apparently healthy caracals at the zoo and were submitted, together with the sa ...
Evaluation of genetic variation within and between different chicken lines by DNA fingerprinting. Genetic similarity using DNA fingerprinting in cattle to determine relationship coefficient
Здравсвуйте пользователи форума amv.at.ua, вчера пользователь под ником Olechkalype просила меня выложить супермодные новинки Компьютерные аксессуары/Графические планшеты в 2014, а так же сотовые бренда Intuos Pro Special Ed., так вот наконецто нашла время для этого, админы прошу не удалять, а перенести в соответствующий раздел, если я ошиблась например Компьютерные аксессуары/Графические планшеты ))) всех обнимаю ...
Пожалуй, самым разочаровывающим итогом 2013 года стало сползание в экономический застой. На протяжении года снижались как темпы роста промышленности, так и ВВП. Если в начале года еще казалось, что экономика вот-вот разгонится и из состояния «технической рецессии» войдет в фазу роста, то уже весной тональность заявлений финансовых властей смен ...
"The Poultry Guide - Avian Lymphoid Leukosis". Archived from the original on 2017-12-11. Retrieved 2007-12-12. v t e (Articles ... Lymphoid leucosis is a disease that affects chickens, caused by the retrovirus Avian leukosis virus. It is a neoplastic disease ...
This family now includes the following genera: Subfamily Orthoretrovirinae: Genus Alpharetrovirus; including Avian leukosis ...
Rubin, H; Vogt PK (1962). "An avian leukosis virus associated with stocks of Rous sarcoma virus". Virology. 17: 184-94. doi: ... "Patterns of viral interference in the avian leukosis and sarcoma complex". Virology. 30 (3): 368-74. doi:10.1016/0042-6822(66) ... Maki, Y; Bos TJ; Davis C; Starbuck M; Vogt PK (1987). "Avian sarcoma virus 17 carries the jun oncogene". Proc Natl Acad Sci U S ... Duesberg, PH; Bister K; Vogt PK (1977). "The RNA of avian acute leukemia virus MC29". Proc Natl Acad Sci U S A. 74 (10): 4320-4 ...
... after Marek's disease and avian leukosis virus. The various syndromes caused by REV resemble both Marek's and avian leukosis. ... The Avian Diagnostic and Oncology Laboratory, in East Lansing, MI is the primary laboratory for research in REV and other tumor ... "Avian Diagnostic and Oncology Laboratory". "Frequently Asked Questions on Viral Tumor Diseases - Compiled by the AAAP Tumor ... The American Association of Avian Pathologists maintains a fact sheet on viral tumor diseases. Swayne, David E.; Glisson, John ...
Lymphoid Leukosis A, B; Avian Lymphoid Leukosis Virus; Lymphoid Leukosis Viruses A,B,C,D,E,J; Marek's Disease (Serotypes 1,2, 3 ... Avian Nephritis Virus, Avian Paramyxovirus Type 2, Avian Reovirus S 1133, Avian Rhinotracheitis Virus; Avian Rotavirus; Avian ... Avian Adenovirus Group II (HEV), Avian Adenovirus Group III (EDS), Avian Encephalomyelitis, Avian Influenza (Type A), ... For SPF eggs the specific pathogens are: Avian Adenovirus Group I, ...
Species include the Rous sarcoma virus, avian leukosis virus, and avian myeloblastosis virus (AMV). Not all animals that can ... Perbal, Bernard (2008). "Avian myeoloblastosis virus (AMV): only one side of the coin". Retrovirology. 5 (1): 49. doi:10.1186/ ...
Curristin SM, Bird KJ, Tubbs RJ, Ruddell A (1997). "VBP and RelA regulate avian leukosis virus long terminal repeat-enhanced ...
Avian Sarcoma and Leukosis Viruses (ASLV) have ten subgroups (A through J). The envelope glycoprotein of subgroup A is called ... The Env proteins of the Avian Sarcoma and Leukosis virus (ASLV) and the Murine Leukemia Virus (MLV) are both trimers of SU-TM ... Barnard RJ, Narayan S, Dornadula G, Miller MD, Young JA (October 2004). "Low pH is required for avian sarcoma and leukosis ... Balliet JW, Gendron K, Bates P (April 2000). "Mutational analysis of the subgroup A avian sarcoma and leukosis virus putative ...
... demonstrated that avian sarcoma leukosis virus (ASLV) can act as a "helper virus" for RSV. This research earned Rubin the 1964 ... "Tolerance and immunity in chickens after congenital and contact infection with an avian leukosis virus". Virology. 17: 143-156 ...
Rous sarcoma and Avian leukosis viruses (Alpharetroviruses and Avian type C retroviruses). dr1 is required for efficient viral ... Aschoff JM, Foster D, Coffin JM (September 1999). "Point mutations in the avian sarcoma/leukosis virus 3' untranslated region ... The direct repeat 1 (dr1) element is an RNA element commonly found in the 3' UTR of Avian sarcoma, ...
Her initial focus used the avian sarcoma leukosis viruses (ASV) of chickens as a model system. With Bill McClements and others ... the laboratory cloned part of the avian endogenous provirus ev-1 as well as its integration site; the results suggested ...
Newly hatched chicks infected with Avian leukosis virus will begin to form tumours that will begin to appear in their bursa of ... These tumours are normally derived from one mutated/transformed cell (clonal in origin). Avian leukosis virus is an example of ...
She was later employed as an agent of the USDA to investigate the diseases of poultry and avian leukosis. The abbreviation ...
KOREC, E., & HLOŽÁNEK, I. Detection of avian leukosis virus group-specific antigens in feather pulp of chickens by Elisa. Folia ... KOREC, E., HLOŽÁNEK, I., & BENDA, V. A rapid detection of avian oncovirus group-specific antigens in feather pulp by the enzyme ...
Bang and Ellerman demonstrated that avian sarcoma leukosis virus could be transmitted between chickens after cell-free ... Rous P (September 1910). "A Transmissible Avian Neoplasm. (Sarcoma of the Common Fowl.)". The Journal of Experimental Medicine ...
In coinfected cells, the retroviral DNA of the avian leukosis virus can integrate into the MDV genome, producing altered ... for instance between Avian sarcoma leukosis virus and Marek's disease virus (MDV) in domestic fowl.[citation needed] Both ...
... in horses Leucosis in sheep Feline leucosis Feline leukemia virus Avian leucosis and related diseases Avian sarcoma leukosis ... ISBN 0-7020-0718-8. H. Graham Purchase and L.N. Payne, Leukosis/sarcoma Group, in Diseases of poultry, ed. by M.S. Hofstad, ...
American Literary Version Avian leukosis virus Autoliv (ticker symbol) This disambiguation page lists articles associated with ...
... avian MeSH C04.619.857.822 - sarcoma, yoshida MeSH C04.619.935.120 - avian leukosis MeSH C04.619.935.313 - epstein-barr virus ... enzootic bovine leukosis MeSH C04.557.337.372 - leukemia, experimental MeSH C04.557.337.372.216 - avian leukosis MeSH C04.557. ... avian leukosis MeSH C04.619.531.594 - leukemia L1210 MeSH C04.619.531.602 - leukemia L5178 MeSH C04.619.531.782 - leukemia p388 ... avian MeSH C04.651.600.500 - multiple endocrine neoplasia type 1 MeSH C04.651.600.505 - multiple endocrine neoplasia type 2a ...
Family 1.G.12 The Avian Leukosis Virus gp95 Fusion Protein (ALV-gp95) Family 1.G.13 The Orthoreovirus Fusion-associated Small ... 1.A.39 Type C influenza virus CM2 channel family 1.A.40 Human immunodeficiency virus type I Vpu channel family 1.A.41 Avian ...
... avian leukosis MeSH C22.131.321 - fowlpox MeSH C22.131.450 - influenza in birds MeSH C22.131.498 - malaria, avian MeSH C22.131. ... avian MeSH C22.131.921 - tuberculosis, avian MeSH C22.180.350 - feline acquired immunodeficiency syndrome MeSH C22.180.440 - ... enzootic bovine leukosis MeSH C22.196.274 - ephemeral fever MeSH C22.196.339 - freemartinism MeSH C22.196.400 - hemorrhagic ...
Concerns about temperature stability and avian sarcoma leukosis virus prevented it from being used more widely during the ...
Viruses portal Avian sarcoma leukosis virus (ASLV) Endogenous viral element ERV3 HERV-FRD Horizontal gene transfer Jaagsiekte ...
Ancient DNA Avian sarcoma leukosis virus (ASLV) Endogenous retrovirus ERV3 HERV-FRD Jaagsiekte sheep retrovirus (JSRV) Koala ...
... avian leukosis MeSH C02.782.815.200 - deltaretrovirus infections MeSH C02.782.815.200.260 - enzootic bovine leukosis MeSH ... avian MeSH C02.782.930.100 - alphavirus infections MeSH C02.782.930.100.370 - encephalomyelitis, equine MeSH C02.782.930.100. ...
... avian MeSH B04.820.650.070.500 - leukosis virus, avian MeSH B04.820.650.070.550 - myeloblastosis virus, avian MeSH B04.820. ... avian MeSH B04.909.574.807.070.500 - leukosis virus, avian MeSH B04.909.574.807.070.550 - myeloblastosis virus, avian MeSH ... avian MeSH B04.909.777.731.070.500 - leukosis virus, avian MeSH B04.909.777.731.070.550 - myeloblastosis virus, avian MeSH ... avian MeSH B04.820.565.400.410 - hepatitis a virus MeSH B04.820.565.400.410.500 - hepatitis a virus, human MeSH B04.820.565.700 ...
The most common immunosuppressive viruses are Infectious Bursal Disease Virus (IBDV), Avian Leukosis, Marek's Disease (MD) and ... "Development of the Avian Immune System." Avian Immunology. 4:51-66. Masteller EL, Pharr GT, Funk PE, Thompson CB (1997). "Avian ... Viertlboeck B, Göbel TWF (2008). "Avian T cells: antigen recognition and lineages." Avian Immunol. 6:91-105. Kaiser P, Rothwell ... avian influenza, giardiasis and cryptosporidiosis. These zoonotic diseases can be transmitted to humans. In the case of avian ...
... is characterized by a wide range of tumors, the most common of which are lymphomas. Lymphoid ... Avian sarcoma leukosis virus (ASLV) is an endogenous retrovirus that infects and can lead to cancer in chickens; experimentally ... The American Association of Avian Pathologists maintains a fact sheet on viral tumor diseases. "Leukosis/Sarcoma Group". The ... ISBN 978-1-118-71973-2. Riddell, C. (May-June 1999). "The current problem with Avian Leukosis J Virus". California Poultry ...
... caused by Infectious bursal disease virus Lymphoid leukosis caused by avian sarcoma leukosis virus Marek's disease Newcastle ... Avian infectious bronchitis, caused by a strain of Avian coronavirus previously known as infectious bronchitis virus Avian ... de Wit, J.J. Sjaak; Cook, Jane K.A. (August 2020). "Spotlight on avian coronaviruses". Avian Pathology. 49 (4): 313-316. doi: ... Wernery, Ulrich (2016). "Viral diseases". In Samour, Jaime (ed.). Avian medicine (3rd ed.). Elsevier. p. 435. ISBN ...
Avian carcinoma Mill Hill virus 2 Avian coronavirus Avian coronavirus 9203 Avian dependoparvovirus 1 Avian leukosis virus Avian ... 11 Avian metaavulavirus 14 Avian metaavulavirus 15 Avian metaavulavirus 2 Avian metaavulavirus 20 Avian metaavulavirus 5 Avian ... 18 Avian orthoavulavirus 19 Avian orthoavulavirus 21 Avian orthoavulavirus 9 Avian orthoreovirus Avian paraavulavirus 3 Avian ... metaavulavirus 6 Avian metaavulavirus 7 Avian metaavulavirus 8 Avian metapneumovirus Avian myeloblastosis virus Avian ...
One vaccine in particular is the vaccine for avian influenza. Leaky vaccine use for avian influenza can select for virulent ... The lymphomatous infiltrates need to be differentiated from other conditions that affect poultry including lymphoid leukosis ... It is not uncommon that more than one avian tumor virus can be present in a chicken, thus one must consider both the diagnosis ... The World Organisation for Animal Health (OIE) reference laboratory for Marek's disease is Avian Viral Oncogenesis group (led ...
The Avian Influenza and Influenza of Avian Origin in Mammals (Wales) Order 2006 (S.I. 2006 No. 1762 (W. 184)) The Home Loss ... 866 (W.78)) Gorchymyn Brwselosis (Cymru) 2006 (S.I. 2006 Rhif 866 (Cy.78)) The Enzootic Bovine Leukosis (Wales) Order 2006 (S.I ... The Avian Influenza and Influenza of Avian Origin in Mammals (Wales) (No 2) Order 2006 (S.I. 2006 No. 2927 (W.262)) The Feeding ... The Avian Influenza (H5N1 in Poultry) (Wales) Order 2006 (S.I. 2006 No. 3309 (W.299)) The Avian Influenza (H5N1 in Wild Birds ...
Avian Influenza and Influenza of Avian Origin in Mammals (England) (No.2) Order 2006 (S.I. 2006/2702) Avian Influenza ( ... Enzootic Bovine Leukosis (Wales) Order 2006 (S.I. 2006/867) Value Added Tax (Consideration for Fuel Provided for Private Use) ... Avian Influenza (H5N1 in Poultry) (Wales) Order 2006 (S.I. 2006/3309) Avian Influenza (H5N1 in Wild Birds) (Wales) Order 2006 ( ... Avian Influenza and Influenza of Avian Origin in Mammals (England) Order 2006 (S.I. 2006/1197) Cosmetic Products (Safety) ( ...
Sahagan, BG; Haseltine WA (1979). "Structural Analysis of the Genomes of Woolly Monkey and Gibbon Ape Leukosis Viruses". ... "Specific Binding of Tryptophan Transfer RNA to Avian Myeloblastosis Virus Reverse Transcriptase". Proceedings of the National ...
Avian sarcoma leukosis virus is characterized by a wide range of tumors, the most common of which are lymphomas. Lymphoid ... Avian sarcoma leukosis virus (ASLV) is an endogenous retrovirus that infects and can lead to cancer in chickens; experimentally ... The American Association of Avian Pathologists maintains a fact sheet on viral tumor diseases. "Leukosis/Sarcoma Group". The ... ISBN 978-1-118-71973-2. Riddell, C. (May-June 1999). "The current problem with Avian Leukosis J Virus". California Poultry ...
FSIS will handle avian leukosis as "trimmable condition" By News Desk on July 20, 2020. ... USDAs Food Safety and Inspection Service in the future will handle Avian Leukosis as a "trimmable condition," meaning the ... carcasses of poultry affected with one or more of the several forms of avian leukosis complex…. Continue Reading FSIS will ...
Recovery of acutely transforming viruses from myeloid leukosis induced by the HPRS-103 strain of avian leukosis virus. Avian ... Occurrence of avian leukosis virus subgroup J in commercial layer flocks in China. Avian Pathol. 2004;33:13-7. DOIPubMedGoogle ... Emerging of avian leukosis virus subgroup J in a flock of Chinese local breed [in Chinese]. Acta Microbiol Sin. 2005;45:584-7. ... HPRS-103 (exogenous avian leukosis virus, subgroup J) has an env gene related to those of endogenous elements EAV-0 and E51 and ...
Recovery of acutely transforming viruses from myeloid leukosis induced by the HPRS-103 strain of avian leukosis virus. Avian ... Occurrence of avian leukosis virus subgroup J in commercial layer flocks in China. Avian Pathol. 2004;33:13-7. DOIPubMedGoogle ... Emerging of avian leukosis virus subgroup J in a flock of Chinese local breed [in Chinese]. Acta Microbiol Sin. 2005;45:584-7. ... HPRS-103 (exogenous avian leukosis virus, subgroup J) has an env gene related to those of endogenous elements EAV-0 and E51 and ...
By Vincent Iannelli, MD / December 29, 2018 December 29, 2018 / avian leukosis virus, avian retrovirus, contaminated vaccines, ... avian leukosis virus. Are Vaccines Contaminated with Retroviruses?. ...
Parainfluenza 1, 2, 3, SV-5; avian leukosis (RSV/RIF and RSV-Harris); SV-41, measles, mumps, respiratory syncitial, rubella, ...
Avian leukosis caused by avian leukosis virus (ALV), belonging to the genus Alpharetrovirus of the family Retroviridae, is ... Avian leukosis caused by avian leukosis virus (ALV), belonging to the genus Alpharetrovirus of the family Retroviridae, is ... Establishment and application of a real-time recombinase polymerase amplification assay for the detection of avian leukosis ... Establishment and application of a real-time recombinase polymerase amplification assay for the detection of avian leukosis ...
USDA recognizes that avian leukosis isnt a food safety concern. ... Avian leukosis is a very rare virus that can form lesions in ... Avian Leukosis: What is avian leukosis? Is avian leukosis a food safety concern?. ... How often does avian leukosis occur? According to FSIS data, avian leukosis is a "rare manifestation" in broiler chickens.1 ... Can avian leukosis be transmitted from birds to humans? There is no scientific evidence to support the claim avian leukosis can ...
Avian leukosis virus subgroup J (ALV-J) is an avian oncogenic retrovirus that has led to severe economic losses in the poultry ... Discovery of novel long non-coding RNAs induced by subgroup J avian leukosis virus. Posted by: lncRNA Administrator in ... Discovery of novel long non-coding RNAs induced by subgroup J avian leukosis virus infection in chicken. Dev Comp Immunol [Epub ...
Evidence of avian leukosis virus subgroup E and endogenous avian virus in measles and mumps vaccines derived from chicken cells ... Problem Substances : Avian Leukosis Viruses (ALV-E), Endogenous avian retrovirus (EAV-0) ... Characterization of endogenous avian leukosis viruses in chicken embryonic fibroblast substrates used in production of measles ... Diseases : Endogenous avian retrovirus (EAV-0), Retroviruses. Additional Keywords : Cross-Species Infection, Endogenous ...
Effect of Mareks Disease CVRM Vaccine on the Enhancement of Spontaneous Avian Leukosis-like Tumors (Cooperative Agreement) ... Effect of Mareks Disease CVRM Vaccine on the Enhancement of Spontaneous Avian Leukosis-like Tumors (Trust Fund Cooperative ... Elucidation of Molecular Determinants of Avian Herpesviruses Virulence and Evolution to Inform the Development of Safe and ...
Avian leukosis virus 16% * Recommendations for using msBayes to incorporate uncertainty in selecting an abc model prior: a ... An avian retrovirus uses canonical expression and processing mechanisms to generate viral microRNA. Yao, Y., Smith, L. P., Nair ...
Avian Diseases Digest was published by the American Association of Avian Pathologists through 2012. The Digest published ... Subgroup J Avian Leukosis Virus Neutralizing Antibody Escape Variants Contribute to Viral Persistence in Meat-Type Chickens ... Circulation of Avian Influenza H5N1 in Live Bird Markets in Egypt E.M. Abdelwhab, A.A. Selim, A. Arafa, S. Galal, W.H. Kilany, ... Molecular Epidemiology of Avian Infectious Bronchitis in Brazil from 2007 to 2008 in Breeders, Broilers, and Layers ...
Anti-Avian Leukosis Virus Antibody , MALV-30A-Clone#5A4 , Immunology Consultatnt Laboratory Host: Mouse Format: Unconjugated AP ... Anti-Avian Leukosis Virus Antibody , MALV-30A-Clone#6C2 , Immunology Consultatnt Laboratory Host: Mouse Format: Unconjugated AP ... Anti-Avian Leukosis Virus Antibody , MALV-30A-Clone#6D7 , Immunology Consultatnt Laboratory Host: Mouse Format: Unconjugated AP ... Anti-Avian Leukosis Virus Antibody , GALV-30A , Immunology Consultatnt Laboratory Host: Goat Format: Unconjugated AP Product ...
OBJECTIVES: Reticuloendotheliosis viruses (REV) are a group of retroviruses like avian leukosis/sarcoma viruses (ALSV) that ...
What would you do - Avian Leukosis? Started by HesterF (8.79). Replies: 8. Views: 2527 May 13, 2013, 02:35:11 pm. by HesterF ... Suspected Avian Influenza in Fife Started by CarolineR (8.6). Replies: 7. Views: 2624 January 12, 2016, 04:34:14 pm. by ... Avian Flu 2022-23 - The Accidental Smallholder. We provide help, support and advice for smallholders and aspiring smallholders ... Avian bird flu-how much of a risk are owners who dont know? Started by Sarahjane610 (8.6) ...
2007b) exploited the envelope glycoprotein (EnvA) of the avian sarcoma and leukosis virus, whose cognate receptor (TVA) has no ... transgenic mice susceptible to subgroup A avian leukosis virus-based retroviral vectors. Proc. Natl. Acad. Sci. U.S.A. 91, ... Isolation of a chicken gene that confers susceptibility to infection by subgroup A avian leukosis and sarcoma viruses. J. Virol ... A recent study took advantage of this interaction to target ErbB4-positive neurons by pseudotyping RABV ΔG with an avian virus ...
1.G.12 - The Avian Leukosis Virus gp95 Fusion Protein (ALV-gp95) Family. 1.G.17 - The Bovine Leukemia Virus Envelop ...
We have adapted the avian leukosis virus RCAS (replication-competent avian sarcoma-leukosis virus LTR splice acceptor)-mediated ... Introduction of oncogenes into mammary glands in vivo with an avian retroviral vector initiates and promotes carcinogenesis in ...
The Novel Avian Leukosis Virus Subgroup K Shares Its Cellular Receptor with Subgroup A. Přikryl D, Plachý J, Kučerová D, ... Avian leukosis virus (ALV), an important pathogen in the domestic chicken, diversified into several subgroups differing in ... Precise CRISPR/Cas9 editing of the NHE1 gene renders chickens resistant to the J subgroup of avian leukosis virus. Koslová A, ... 1 on the left) and potentially against other enveloped viruses (avian flu, avian coronaviruses, etc.). Factors of innate ...
... retrovirus avian leukosis was found in a measles vaccine, a virus similar to simian retrovirus was identified in Rotateq anti- ...
Detection of new antibiotic resistance gene profile in Escherichia coli associated with avian leukosis virus infection from ...
Technical Abstract: Chicken endogenous virus, ALVE (Avian Leukosis Virus subgroup E), is inherited as LTR (long terminal repeat ... chickens at the ADOL have been respectively selected for resistance and susceptibility to tumors that are induced by avian ...
Early studies of transmissible tumors in chickens provided evidence that viruses such as avian leukosis virus (ALV) and Rous ... To accomplish this, we constructed dominantly selectable avian leukosis virus derivatives which efficiently coexpress the ... I have therefore used a selectable avian retroviral vector to express p48v-myb in avian erythroblasts which normally express ... The v-myb oncogene of avian myeloblastosis virus causes acute myelomonocytic leukemia in chickens and transforms avian myeloid ...
Characterization of subgroup J avian Leukosis virus isolated from Chinese indigenous chickens In spite of the purification of ... the laying hens and broilers of avian leukosis virus (ALV) has made remarkable achievements, the infection of ALV was still ... Bovine leukemia virus (BLV) causes enzootic bovine leukosis, the most common neoplastic disease in cattle. We previously ... Bovine leukemia virus (BLV) causes enzootic bovine leukosis, the most common neoplastic disease of cattle. Previously, we ...
Avian leukosis virus antigen Current Synonym true false 3038836013 Antigen of Avian leukosis virus Current Synonym true false ... Avian leukosis virus Ag Current Synonym true false 3038823013 ... Antigen of Avian leukosis virus (substance). Concept Status. ... Antigen of Avian leukosis virus (substance). Code System Preferred Concept Name. ...
... and retrovirus avian (bird) leukosis virus in a measles vaccine. http://articles.mercola.com/sites/articles/archive/2010/04/17/ ...
  • In recent years, cases of avian leukosis virus subgroup J (ALV-J) infection and tumors in commercial layer chickens and breeders of egg-type chickens have been emerging in the People's Republic of China. (cdc.gov)
  • Avian leukosis virus subgroup J (ALV-J) is an avian oncogenic retrovirus that has led to severe economic losses in the poultry industry in China in recent decades. (lncrnablog.com)
  • Evidence of avian leukosis virus subgroup E and endogenous avian virus in measles and mumps vaccines derived from chicken cells: investigation of transmission to vaccine recipients. (greenmedinfo.com)
  • The Novel Avian Leukosis Virus Subgroup K Shares Its Cellular Receptor with Subgroup A. Přikryl D, Plachý J, Kučerová D, Koslová A, Reinišová M, Šenigl F, Hejnar J. J Virol. (cas.cz)
  • Precise CRISPR/Cas9 editing of the NHE1 gene renders chickens resistant to the J subgroup of avian leukosis virus. (cas.cz)
  • Chicken endogenous virus, ALVE (Avian Leukosis Virus subgroup E), is inherited as LTR (long terminal repeat) retrotransposons, which is negatively correlated with fitness and disease resistance, and any changes in DNA methylation pattern may thus contribute to the susceptibility to neoplastic disease. (usda.gov)
  • Lymphoid leukosis is the most common form of this disease and with typical presentation of gradual onset, persistent low mortality, and neoplasia of the bursa. (wikipedia.org)
  • Lymphoid leukosis has a worldwide distribution, and is most commonly found in birds 16 weeks or older. (wikipedia.org)
  • Lymphoid leukosis was eradicated in primary breeders in the 1980s and 1990s which dramatically reduced the incidence of the disease in commercial laying hens. (wikipedia.org)
  • A high incidence of lymphoid leukosis was observed in two trials and may have been due to post-hatch exposure to an unidentified environmental source of avian leukosis virus. (elsevier.com)
  • Activation of a cellular onc gene by promoter insertion in ALV-induced lymphoid leukosis. (wikidata.org)
  • Avian leukosis virus belongs to a family of viruses called "retroviruses. (chickencheck.in)
  • 3 The viruses that cause leukosis are species-specific and cannot be transmitted to humans. (chickencheck.in)
  • 4 Comprehensive literature reviews of the viruses that cause leukosis have also concluded that neither disease presents any apparent risk to public health. (chickencheck.in)
  • Characterization of endogenous avian leukosis viruses in chicken embryonic fibroblast substrates used in production of measles and mumps vaccines. (greenmedinfo.com)
  • OBJECTIVES: Reticuloendotheliosis viruses (REV) are a group of retroviruses like avian leukosis/sarcoma viruses (ALSV) that naturally infect and cause cancers in chickens. (cdc.gov)
  • For example, chicken BST-2/Tetherin exerts antiviral activity against ALV (Fig. 1 on the left) and potentially against other enveloped viruses (avian flu, avian coronaviruses, etc. (cas.cz)
  • Lines 63 and 72 White Leghorn inbred chickens at the ADOL have been respectively selected for resistance and susceptibility to tumors that are induced by avian viruses. (usda.gov)
  • Other examples of contamination include the unexpected discovery of pig virus DNA in the rotavirus vaccine GlaxoSmithKline's "Rotarix", a virus similar to simian (monkey) retrovirus in Merck's rotavirus vaccine "Rotateq" and retrovirus avian (bird) leukosis virus in a measles vaccine. (sanevax.org)
  • Other examples of contamination include the unexpected discovery of pig virus DNA in rotavirus vaccines and retrovirus avian (bird) leukosis virus in a measles vaccine. (vactruth.com)
  • Avian sarcoma leukosis virus is characterized by a wide range of tumors, the most common of which are lymphomas. (wikipedia.org)
  • Avian leukosis caused by avian leukosis virus (ALV), belonging to the genus Alpharetrovirus of the family Retroviridae , is associated with benign and malignant tumors in hemopoietic cells in poultry. (pirbright.ac.uk)
  • Under the category of "leukosis," USDA inspectors condemn whole birds with visible MD tumors at processing. (thepoultrysite.com)
  • c-erbB activation in avian leukosis virus-induced erythroblastosis: multiple epidermal growth factor receptor mRNAs are generated by alternative RNA processing. (elsevier.com)
  • ALV-J was first isolated from meat-type chickens with myeloid leukosis in 1988. (cdc.gov)
  • According to FSIS data, avian leukosis is a "rare manifestation" in broiler chickens. (chickencheck.in)
  • 1 According to the agency's data from as early as 1984, avian leukosis was present in only 0.017 percent of young chickens slaughtered. (chickencheck.in)
  • Does this mean USDA inspectors will no longer be inspecting chickens for avian leukosis? (chickencheck.in)
  • Bovine Leukemia Virus (BLV) is a member of the genus Deltaretroviruses of the family Retroviridae and causes Enzootic Bovine Leukosis (EBL). (unza.zm)
  • Working with avian retroviruses, we also need a strong background in the genetics and genomics of birds, particularly the chicken. (cas.cz)
  • The terminal oligonucleotides of avian tumor virus RNAs are genetically linked. (wikidata.org)
  • Frog oocytes synthesize and completely process the precursor polypeptide to virion structural proteins after microinjection of avian myeloblastosis virus RNA. (duke.edu)
  • After microinjection of Xenopus laevis oocytes with RNA from avian myeloblastosis virus, viral structural proteins p27, p19, p15, and p12 are formed by a sequence of posttranslational cleavages of a high-molecular-weight precursor polypeptide. (duke.edu)
  • The processing pattern of virus-specific precursor polypeptides is the same in X. laevis oocytes as in chick embryo fibroblasts infected with avian myeloblastosis virus, but the processing takes place at a much slower rate. (duke.edu)
  • The subgroups evolved to utilize difference cellular receptors to gain entry into avian cells due to the host developing resistance to viral entry. (wikipedia.org)
  • CSL Seqirus Audenz (aH5N1c) is an adjuvanted cell-based vaccine protecting against avian influenza H5N1 bird flu pandemics. (precisionvaccinations.com)
  • Avian Influenza H5N1 in Egypt: What we Know and What we have to Know? (researcherslinks.com)
  • The detection of the avian leukosis virus (ALV) p27 antigen plays a decisive role in the elimination of avian leukosis. (springeropen.com)
  • H5N1 AIV succeeded in infecting not only domesticated birds but also many other avian species and mammals. (researcherslinks.com)
  • ty measures, controlling poultry movements and inactivated vaccines were devised to combat the spread of highly pathogenic avian influenza (HPAIV) H5N1. (researcherslinks.com)
  • In March of 2019, the National Chicken Council petitioned the U.S. Department of Agriculture's Food Safety and Inspection Service (FSIS) to allow the removal of extremely rare lesions suspected to be caused by avian leukosis from the bird during processing and not require that the whole chicken to be discarded. (chickencheck.in)
  • USDA's FSIS and other health agencies have recognized avian leukosis "is not transmissible to humans" and "does not present a human health concern," a fact the agency has acknowledged since at least 1997. (chickencheck.in)
  • This is because avian leukosis does not impact the whole chicken - it only impacts a specific part of the chicken. (chickencheck.in)
  • In the rare occurrence avian leukosis is found on a chicken liver or spleen, are the other parts of the bird, like the breast or wings, affected? (chickencheck.in)
  • Avian leukosis virus (ALV), an important pathogen in the domestic chicken, diversified into several subgroups differing in their receptor usage. (cas.cz)
  • YF-VAX yellow fever vaccine is prepared by culturing the 17D-204 strain of yellow fever virus in living avian leukosis virus-free chicken embryos. (precisionvaccinations.com)
  • Avian leukosis (AL) is one of the most harmful diseases to the poultry industry in China. (springeropen.com)
  • Published in partnership with the American Association of Avian Pathologists, the Thirteenth Edition remains the international definitive reference, adding newer diagnostic methods and a new chapter on the emerging importance of zoonotic infections for poultry pathogens. (evsrl.it)
  • Restitution of fibroblast-transforming ability in src deletion mutants of avian sarcoma virus during animal passage. (wikidata.org)
  • Cloning and characterization of different human sequences related to the onc gene (v-myc) of avian myelocytomatosis virus (MC29). (wikidata.org)
  • Methods ·The adeno-associated virus (AAV) vectors expressing the fusion protein of wheat germ agglutinin and Cre recombinase (Cre) were injected into V1 of C57BL/6J male mice, and the AAV vectors with Cre-inducible expression of avian sarcoma/leukosis virus envelope glycoprotein receptor TVA and rabies glycoprotein were injected into LD, respectively. (shsmu.edu.cn)
  • However, the movement was unsuccessful in maintaining leukosis-free flocks. (wikipedia.org)
  • Nearly all birds are vaccinated against the causes of avian leukosis and its prevalence has been effectively eliminated from commercial flocks. (chickencheck.in)
  • Tuberculosis, Avian" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (harvard.edu)
  • This graph shows the total number of publications written about "Tuberculosis, Avian" by people in Harvard Catalyst Profiles by year, and whether "Tuberculosis, Avian" was a major or minor topic of these publication. (harvard.edu)
  • Below are the most recent publications written about "Tuberculosis, Avian" by people in Profiles. (harvard.edu)
  • RNA species obtained from clonal lines of avian sarcoma and from avian leukosis virus. (wikidata.org)
  • Can avian leukosis be transmitted from birds to humans? (chickencheck.in)
  • There is no scientific evidence to support the claim avian leukosis can be transmitted from birds to humans. (chickencheck.in)
  • Real-time RPA was capable of ALV-J-specific detection without cross-reaction with other non-targeted avian pathogens. (pirbright.ac.uk)
  • Avian leukosis impacts the bird's immunity, and the virus can eventually form lesions in the internal organs of the bird such as the liver or spleen. (chickencheck.in)
  • Leukosis condemnations are usually very low but can soar if the MD vaccination program is ineffective. (thepoultrysite.com)
  • The vertebrate homolog of the putative transforming gene of avian myelocytomatosis virus: characteristics of the DNA locus and its RNA transcript. (wikidata.org)