Duchenne muscular dystrophy (DMD) is caused by mutations in the DMD gene that abolish the synthesis of dystrophin protein. Antisense oligonucleotides (AOs) targeted to trigger excision of an exon bearing a mutant premature stop codon in the DMD transcript have been shown to skip the mutated exon and partially restore functional dystrophin protein in dystrophin-deficient mdx mice. To fully exploit the therapeutic potential of this method requires highly efficient systemic AO delivery to multiple muscle groups, to modify the disease process and restore muscle function. While systemic delivery of naked AOs in DMD animal models requires high doses and is of relatively poor efficiency, we and others have recently shown that short arginine-rich peptide-AO conjugates can dramatically improve in vivo DMD splice correction. Here we report for the first time that a chimeric fusion peptide (B-MSP-PMO) consisting of a muscle-targeting heptapeptide (MSP) fused to an arginine-rich cell-penetrating peptide (B-peptide)
Duchenne muscular dystrophy is a neuromuscular disease caused by the lack of dystrophin that affects skeletal muscles, causing degeneration of muscle fibers and replacing them with fibrous and adipose tissue, events that gradually lead to functional loss. Patients with Duchenne muscular dystrophy have shown that bones become more fragile with age and with advancement of the disease. Muscle weakness and reduced mobility have been suggested to be the factors that promote bone deterioration. However, it seems that this does not occur in mdx mice. It has been identified in mdx mice the existence of a factor related or not to the lack of dystrophin that also participates in the impairment of bone quality. Mdx mice also exhibit muscle degeneration, but unlike human, it is compensated by muscle regeneration. In consequence, there is an increase in the muscle mass, but not necessarily of muscle contractile strength. The accommodation of this increased muscle mass promotes bone formation at specific ...
As a target for gene therapy, Duchenne muscular dystrophy (DMD) presents many obstacles but also an unparalleled prospect for correction by alternative splicing. The majority of mutations in the dystrophin gene occur in the region encoding the spectrin-like central rod domain, which is largely dispensable. Thus, splicing around mutations can generate a shortened but in-frame transcript, permitting translation of a partially functional dystrophin protein. We have tested this idea in vivo in the mdx dystrophic mouse (carrying a mutation in exon 23 of the dystrophin gene) by combining a potent transfection protocol with a 2-O-methylated phosphorothioated antisense oligoribonucleotide (2OMeAO) designed to promote skipping of the mutated exon*. The treated mice show persistent production of dystrophin at normal levels in large numbers of muscle fibers and show functional improvement of the treated muscle. Repeated administration enhances dystrophin expression without eliciting immune responses. Our ...
Patterns of dystrophin and β-galactosidase expression were examined in mdx mice after i.m. injections of synthetic microspheres (MF-2) loaded with full-length (pHSADy) or mini-dystrophin gene (pSG5dys) cDNA plasmid constructs or with LacZ marker gene (pCMV-LacZ). A single injection of 25 μg pHSADy into quadriceps femoris muscle resulted in 6.8% of dystrophin positive myofibers (DPM) in a given muscle; 8.4% of DPM in glutaeus muscle and 4.3% of DPM in quadriceps femoris muscle of contralateral limb on day 21 after exposure compared with only 0.6% DPM in intact (non-injected) mdx mice. A high proportion of DPM (17.6% and 10.8%, respectively) was registered in both injected and contralateral muscles after mini- gene cDNA administration. MF-2/dystrophin cDNA par- ticles were detected by FISH analysis in about 60-70% of myofiber nuclei in muscles of injected and contralateral limbs 7 days after application. The presence of human dystrophin cDNA and its products in all skeletal muscles and in different
Extracellular microRNAs (miRNAs) are promising biomarkers of the inherited muscle wasting condition Duchenne muscular dystrophy, as they allow non-invasive monitoring of either disease progression or response to therapy. In this study, serum miRNA profiling reveals a distinct extracellular miRNA signature in dystrophin-deficient mdx mice, which shows profound dose-responsive restoration following dystrophin rescue. Extracellular dystrophy-associated miRNAs (dystromiRs) show dynamic patterns of expression that mirror the progression of muscle pathology in mdx mice. Expression of the myogenic miRNA, miR-206 and the myogenic transcription factor myogenin in the tibialis anterior muscle were found to positively correlate with serum dystromiR levels, suggesting that extracellular miRNAs are indicators of the regenerative status of the musculature. Similarly, extracellular dystromiRs were elevated following experimentally-induced skeletal muscle injury and regeneration in non-dystrophic mice. Only a minority
TY - JOUR. T1 - Muscle-bone interactions in dystrophin-deficient and myostatin-deficient mice. AU - Montgomery, Eric. AU - Pennington, Catherine. AU - Isales, Carlos M.. AU - Hamrick, Mark W.. PY - 2005/9/1. Y1 - 2005/9/1. N2 - We have investigated muscle-bone interactions using two mouse mutants that are known to differ from normal mice in skeletal muscle growth and development: mice lacking myostatin (GDF8) and mice lacking dystrophin (mdx). Myostatin-deficient mice show increased muscle size and strength compared to normal mice, whereas the mdx mouse is a well-established animal model for Duchenne muscular dystrophy. The mdx mice have significantly larger hindlimb muscles than controls, and histological sections of the quadriceps muscles show dystrophic changes with extensive fibrosis. Femoral bone mineral density (BMD) and fracture strength (Fu) are significantly greater in mdx mice than controls, and these variables are more strongly correlated with quadriceps muscle mass than with body ...
The requirement of muscle damage for effective delivery and AON induced dystro-phin expression is further supported by the result obtained in the cardiac muscle in the mdx mice after systemic treatment of both 2OMePS AON and PMO. Cardiac muscles in mdx mice are less affected by the dystrophic process and no significant pathology and functional impairment can be obviously demonstrated until late age. Consistently, only minimum amount of dystrophin expression can be detected in the cardiac muscle even after repeated injections of both 2OMePS AON and PMO in all mdx mice aged 6 months or younger (Lu et al. 2005; Alter et al. 2006), whereas the same treatment can induce high levels of dystrophin in skeletal muscles. There is a possibility that the special tissue structure (vasculature and membrane) and pattern of metabolism or gene expression regulation could be responsible for lower efficiency of AON delivery or exon skipping inside myonuclei. However, direct injection of AON into cardiac muscles ...
The identification of the channel involved in store-dependent Ca entry has been largely investigated in nonexcitable cells. Candidate molecules for this pathway probably belong to the TRPC protein family (for review see Clapham et al., 2001). This has been shown by heterologous expression of TRPC proteins. Using this methodology, TRPC1-5 have been shown to be possibly activated by store depletion (Groschner et al., 1998; Philipp et al., 1998; Vannier et al., 1999; Warnat et al., 1999; Liu et al., 2000). However, other authors showed that heterologous expression of TRPC3-6 also gave channels whose activation was independent of store depletion (Zitt et al., 1997; Hofmann et al., 1999; Schaefer et al., 2000; Wu et al., 2000). Therefore, different groups tried to evaluate the functional role of TRPC proteins by repressing their expression by transfection with antisense nucleotide sequences. This strategy has been used to clearly demonstrate that TRPC4 is part of the native Ca-release activated Ca ...
Introduction: In Duchenne muscular dystrophy and in the mdx mouse, muscle fiber degeneration and subsequent fibrosis lead to cardiorespiratory failure. Previously, we demonstrated that the anti-fibrotic agent suramin was effective in decreasing fibrosis in mdx muscles. In this study, we were interested to see whether suramin could affect metalloproteinases (MMP) and improve the functional activity of the mdx diaphragm muscle. Methods: Zymography was performed to evaluate MMP-2 and MMP-9 activity. Western blotting was used to analyze the levels of beta-dystroglycan. Muscle function was assessed in hemidiaphragm in vitro preparations. Results: We found that suramin affects metalloproteinase-9 activity and increases beta-dystroglycan. Furthermore, suramin also protects against diaphragm muscle fatigue over time. Conclusions: These results show the potential benefits of suramin in maintaining the structure of the dystrophin-glycoprotein complex. Muscle Nerve, 46:810813, ...
Figure 2: Histopathology related to injury. (a) cross-section of normal healthy TA muscle from a wild-type mouse. Skeletal muscle fibers are multinucleated and the nuclei stain blue; the sarcoplasm of each cell stains pink. (b) cross-section from a wild-type TA after injury. There was only minimal evidence of perivascular inflammation (arrows) in the wild-type tissue after injury. (c) cross-section from TA muscle of an mdx mouse. Even without injury, there is mild inflammation, slight increase in endomysial connective tissue, heterogeneity in fiber size, and many centrally nucleated fibers (CNFs, open arrows), all indicative of ongoing degeneration/regeneration within the muscle. (d) cross-section from an mdx TA after injury. Even with a protocol that produces mild changes in morphology to healthy muscle, the mdx muscle suffers much more damage, such as myonecrosis, myophagocytosis, and foci of inflammation surrounding individual muscle fibers (closed arrows). Scale bar = 40 μm ...
PubMed journal article: Myostatin genetic inactivation inhibits myogenesis by muscle-derived stem cells in vitro but not when implanted in the mdx mouse muscle. Download Prime PubMed App to iPhone, iPad, or Android
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Lack of dystrofin is associated with altered integration of the mitochondria and ATPases in slow-twitch muscle cells of MDX mice (kaasautor). // Biohim. Biophys. Acta 1505 (2001) 2-3: Butadioon-monoksiimi toime mitokondrite ja ATPaaside integratsioonile südamelihases (kaasautor). // Eesti Arst (2003) ...
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This is a multicenter, follow-up study in up to 191 subjects with metastatic melanoma who were previously enrolled and treated in ipilimumab studies MDX010-02, MDX010-08, and MDX010-15. The purpose of this study is to 1) collect the date and cause of death, if known, for all deceased subjects who participated in any of the specified studies; 2) collect the date of progression for subjects who completed the studies with stable disease or better; and 3) prospectively follow all surviving subjects to determine progression-free and overall survival ...
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As more fully set forth in this websites terms of use. (1) nothing contained on or offered by or through this website should be construed as medical advice and should not be relied upon for medical diagnosis or treatment. MDX Medical, Inc. (MDX). the provider of this website, does not recommend or endorse any particular healthcare provider whose information or ratings appear on this website; and (2) MDX has granted you a limited license to access and use this website for your own noncommercial use. You are not permitted to copy, reproduce, distribute, transmit, mirror, frame, scrape, extract, wrap, create derivative works of, reverse engineer, decompile or disassemble any part or aspect of this website. ...
Duchenne muscular dystrophy (DMD) is a fatal genetic disease caused by mutations in the dystrophin gene. Lack of dystrophin causes muscle wasting that eventually leads to premature death from respiratory and/or heart failure. Heart disease can be detected as early as six years of age in DMD patients. As heart disease progresses, patients begin to show overt signs of severe dilated cardiomyopathy and up to 40% of patients die from heart disease. Adeno-associated virus (AAV) mediated micro-dystrophin gene therapy brings the hope of ameliorating DMD. Dystrophin-deficient mdx mice exhibit a cardiac phenotype similar to human DMD patients albeit at a delayed progression (Bostick et al 2008 Cir Res102:121-130). Delineating the potential of gene therapy at different stages of dystrophic cardiomyopathy is critical to developing a successful gene therapy strategy. Investigators, including ourselves, have previously shown that AAV-9 can efficiently transduce the adult mouse heart. In this study, we ...
Duchenne muscular dystrophy (DMD), a recessive X-linked disorder and the most common of a class of progressive muscle-wasting diseases, is characterized by the lack of dystrophin at the muscle cell membrane (1). Replacement of absent dystrophin in mdx mice by transgenic expression leads to complete restoration of normal muscle cell membrane function (2). Muscle is known to be a regenerative tissue, and this regeneration is accomplished via a heterogeneous population of cells called satellite cells or myoblasts. These cells divide upon damage to muscle, fuse to one another and with existing myofibers, and create new muscle fibers. One approach to therapy for DMD was the intramuscular injection of normal myoblasts into the skeletal muscle of DMD patients or mdx mice, which lack full-length functional dystrophin. Although early results in mdx mice were promising, the human clinical trials proved safe but ineffective, with little or no new expression of dystrophin documented (3, 4). Originally, it ...
Duchenne Muscular Dystrophy (DMD) is a progressive lethal disease caused by X-linked mutations of the dystrophin gene. Dystrophin deficiency clinically man
Researchers describe how increased production of a microRNA promotes progressive muscle deterioration in a mouse model of Duchenne muscular dystrophy (DMD), according to a study published online on January 2, 2012 in the Journal of Cell Biology. As DMD patients age, their damaged muscle cells are gradually replaced by collagen-rich, fibrous tissue. This muscle fibrosis is partly induced by the growth factor TGF-beta, which is highly activated in DMD patients, though exactly how this cytokine promotes fibrogenesis is unclear. Dr. Pura Muñoz-Cánoves and colleagues examined the role of miR-21, a microRNA whose production is stimulated by TGF-beta signaling. miR-21 was upregulated in the collagen-producing fibroblasts of both DMD patients and mice that develop disease symptoms similar to human muscular dystrophy (so-called mdx mice). Inhibiting miR-21 reduced collagen levels and prevented, or even reversed, fibrogenesis in diseased mice, whereas mdx mice overexpressing the microRNA produced more ...
SingleCut CRISPR efficiently restored up to 90% of dystrophin expression in skeletal and heart muscles. Study published in the journal Science Translational Medicine. CAMBRIDGE, Mass. - November 29, 2017 - Exonics Therapeutics, Inc., a biotechnology company focused on developing SingleCut CRISPR technology to repair mutations causing Duchenne muscular dystrophy and other neuromuscular diseases, today announced the publication of a preclinical study demonstrating the Companys SingleCut CRISPR technology efficiently corrected in vivo dystrophin expression in a mouse model of Duchenne.. Duchenne is a devastating muscle disease in children for which there is no cure. It is caused by mutations of the dystrophin protein gene responsible for stabilizing and protecting muscle fibers, which results in progressive muscle weakness and leads to life-threatening and ultimately fatal medical issues. Data suggest that deletions of exon 50 of the dystrophin gene are among the most common single exon deletions ...
Induced splice modulation of pre-mRNAs shows promise to correct aberrant disease transcripts and restore functional protein and thus has therapeutic potential. Duchenne muscular dystrophy (DMD) results from mutations that disrupt the DMD gene open reading frame causing an absence of dystrophin protein. Antisense oligonucleotide (AO)-mediated exon skipping has been shown to restore functional dystrophin in mdx mice and DMD patients treated intramuscularly in two recent phase 1 clinical trials. Critical to the therapeutic success of AO-based treatment will be the ability to deliver AOs systemically to all affected tissues including the heart. Here, we report identification of a series of transduction peptides (Pip5) as AO conjugates for enhanced systemic and particularly cardiac delivery. One of the lead peptide-AO conjugates, Pip5e-AO, showed highly efficient exon skipping and dystrophin production in mdx mice with complete correction of the aberrant DMD transcript in heart, leading to |50% of the normal
Induced splice modulation of pre-mRNAs shows promise to correct aberrant disease transcripts and restore functional protein and thus has therapeutic potential. Duchenne muscular dystrophy (DMD) results from mutations that disrupt the DMD gene open reading frame causing an absence of dystrophin protein. Antisense oligonucleotide (AO)-mediated exon skipping has been shown to restore functional dystrophin in mdx mice and DMD patients treated intramuscularly in two recent phase 1 clinical trials. Critical to the therapeutic success of AO-based treatment will be the ability to deliver AOs systemically to all affected tissues including the heart. Here, we report identification of a series of transduction peptides (Pip5) as AO conjugates for enhanced systemic and particularly cardiac delivery. One of the lead peptide-AO conjugates, Pip5e-AO, showed highly efficient exon skipping and dystrophin production in mdx mice with complete correction of the aberrant DMD transcript in heart, leading to |50% of the normal
The investigators previous work in males with Becker Muscular Dystrophy shows that functional sympatholysis is restored by acute inorganic nitrate supplementation. This was translated from work using the mdx mouse model of dystrophinopathy. Recent work has shown that there is a frank improvement in grip strength when mdx mice are treated with an inorganic Nitric Oxide (NO) donor. The purpose of this study is to determine if chronic treatment with an inorganic NO donor can benefit patients with muscular dystrophy beyond blood flow regulation ...
Duchenne muscular dystrophy (DMD) is a neuromuscular disorder causing progressive muscle degeneration. Although cardiomyopathy is a leading mortality cause in DMD patients, the mechanisms underlying heart failure are not well understood. Previously, we showed that NF-κB exacerbates DMD skeletal muscle pathology by promoting inflammation and impairing new muscle growth. Here, we show that NF-κB is activated in murine dystrophic (mdx) hearts, and that cardiomyocyte ablation of NF-κB rescues cardiac function. This physiological improvement is associated with a signature of upregulated calcium genes, coinciding with global enrichment of permissive H3K27 acetylation chromatin marks and depletion of the transcriptional repressors CCCTC-binding factor, SIN3 transcription regulator family member A, and histone deacetylase 1. In this respect, in DMD hearts, NF-κB acts differently from its established role as a transcriptional activator, instead promoting global changes in the chromatin landscape to regulate
The cytotoxic T cell (CT) GalNAc transferase (Galgt2) is confined to the NMJ and catalyzes addition of the terminal β1,4 GalNAc residues onto the CT carbohydrate of a subset of α-DG proteins [71, 72]. α-DG is the predominant glycoprotein modified with the CT carbohydrate in skeletal muscle where it is enriched at the postsynaptic membrane of the NMJ [73]. Overexpression of Galgt2 in mdx mice increases abundance and extrasynaptic expression of α-DG modified with the CT antigen, resulting in improved laminin-binding activity [72, 73]. Overexpression of SSPN in mdx mice increases GalNAc modifications in a similar manner to the overexpression of Galgt2, as revealed by the increased cell surface binding of the lectin Wisteria floribunda agglutinin (WFA) [19], which is a marker for NMJ-specific CT carbohydrate modification of α-DG (Figure 2) [72, 74-77]. WFA binding is localized to NMJs in normal muscle and is increased around the extra-synaptic sarcolemma of mdx muscle cryosections [19, 78]. WFA ...
Duchenne muscular dystrophy (DMD) is caused by loss of sarcolemma connection to the extracellular matrix. Transgenic overexpression of the transmembrane protein sarcospan (SSPN) in the DMD mdx mouse model significantly reduces disease pathology by restoring membrane adhesion. Identifying SSPN-based therapies has the potential to benefit patients with DMD and other forms of muscular dystrophies caused by deficits in muscle cell adhesion. Standard cloning methods were used to generate C2C12 myoblasts stably transfected with a fluorescence reporter for human SSPN promoter activity. Assay development and screening were performed in a core facility using liquid handlers and imaging systems specialized for use with a 384-well microplate format. Drug-treated cells were analyzed for target gene expression using quantitative PCR and target protein expression using immunoblotting. We investigated the gene expression profiles of SSPN and its associated proteins during myoblast differentiation into myotubes,
Bouts of intrinsic myonecrosis in DMD can also directly damage neuromuscular junctions (NMJs; Box 1). The adverse progressive changes in NMJs, which indicate denervation, are widely reported in dystrophic muscles of rodent and dog models of DMD (Haddix et al., 2018). These altered NMJs affect the associated dystrophic nerve over time, with consequent increased levels of S100 and Tau5 proteins seen by 13 months of age in sciatic nerves of mdx mice (Gordish-Dressman et al., 2018). Such neuronal changes indicate progressive irreversible denervation, often associated with neurodegeneration (Krishnan et al., 2016), that is likely to become pronounced over many years or decades and contribute to the loss of muscle function in DMD patients. These preclinical neuronal changes could prove useful as a biomarker for the long-term consequences of repeated intrinsic myonecrosis in animal studies.. A key aim for DMD therapies is to prevent myonecrosis and to directly stabilise the myofibres, ideally by ...
Sarepta is preparing to file a follow-up to its Duchenne muscular dystrophy (DMD) treatment Exondys 51 that seems to have greater efficacy.. Shares in the company were on the rise after it reported positive data from a phase I/II trial of the follow-up - called golodirsen - which showed the exon-skipping drug met its primary objective of raising levels of functional dystrophin, a protein that is mutated in DMD leading to the characteristic muscle wasting symptoms.. The European trial in 25 boys with deletions in the dystrophin gene amenable to treatment with golodirsen - an exon 53-skipping drug - showed that dystrophin levels increased to 1.019% of normal from an average baseline level of 0.095% of normal, which is a 10-fold increase and superior to that seen with exon 51-targeting Exondys 51 (eteplirsen). Some clinicians have suggested however that restoring dystrophin levels to 10% may be needed to have a real clinical benefit.. Nevertheless, Sarepta is hoping that data may be enough for it ...
Different strategies involving stem cells for muscular dystrophy may be on the horizon, research suggests. Scientists have been using stem cells isolated from muscle tissue, bone marrow and blood vessels in lab animals to regenerate muscle fibers that are deficient in dystrophin[3] and results are encouraging.. In 2006, researchers managed to restore mobility in two afflicted dogs using stem cells isolated from muscle blood vessels [4], and in 2007 scientists managed to treat Duchenne MD in research mice using a combination of genetic correction and stem cells [3]. The latter study showed that it is possible to correct the genetic error in the cells that no longer produce dystrophin protein, and inject corrected cells stimulating the regeneration of muscles.. Researchers at the Harvard Stem Cell Institute obtained similar results, demonstrating that transplanted muscle stem cells can improve function in mice with MD, while replenishing the stem cell population in muscle fibers [5].. Although ...
A promising minidystrophin gene that restores normal muscle force to skeletal and diaphragm muscles in mice with a disease resembling Duchenne muscular dystrophy (DMD) seems to be only partially effective at restoring strength and function to heart muscles. ...
Soudon reported results for 20+ DMD patients who used CTMV (DMD3). The patients had an average survival of 3.6 years.. Eagle et al. reported results for 200 DMD patients who were either untreated or used TMV/CTMV (DMD4). The untreated patients had an average survival of 19.5 years (cardiomyopathy was the cause of death for 7.4%). The patients who used TMV/CTMV had an average survival of 24.8 years (cardiomyopathy was the cause of death for 36.8%).. Bach et al. reported results for seven DMD patients who used CTMV for a mean of 7.1 years starting from the average age of 21.1±3.8 to 28.1±4.5 years (JBCV7). Two of the seven patients were still alive at time of publication. Complications were not reported.. The DMD patients of Baydur and Bach, who survived long enough after episodes of acute respiratory failure to be referred to rehabilitation centers and who used TMV/CTMV, had an improved average survival of 6.2 and 7.1 years, respectively.. Ishikawa et al. reported that (YICV7):. ...
In a mouse model of dystrophin-deficient cardiomyopathy, ACE-I produced haemodynamic benefit, whereas steroids accelerated progression of cardiomyopathy. Although mouse models may not entirely replicate the human condition, comprehensive monitoring of cardiac function with these therapies is essenti …
Real progress is being made in supplying functional dystrophin genes to treat Duchenne muscular dystrophy (DMD), a disease in which mutated dystrophin genes keep this critical protein from being produced in muscle fibers. ...
S. Fletcher, Honeyman, K., Fall, A. M., Harding, P. L., Johnsen, R. D., Steinhaus, J. P., Moulton, H. M., Iversen, P. L., and Wilton, S. D., Morpholino oligomer-mediated exon skipping averts the onset of dystrophic pathology in the mdx mouse., Molecular therapy : the journal of the American Society of Gene Therapy, vol. 15, no. 9, pp. 1587-92, 2007. ...
S. Fletcher, Honeyman, K., Fall, A. M., Harding, P. L., Johnsen, R. D., Steinhaus, J. P., Moulton, H. M., Iversen, P. L., and Wilton, S. D., Morpholino oligomer-mediated exon skipping averts the onset of dystrophic pathology in the mdx mouse., Molecular therapy : the journal of the American Society of Gene Therapy, vol. 15, no. 9, pp. 1587-92, 2007. ...
Animal models: The consensus is that regulatory toxicology studies should be performed in rodents, whereas other preclinical animal studies may be performed in other animal models. A summary of the relevance of different models (mdx mouse, grmd dog, non-human primate and pig) was provided.. Proof of concept/functionality data/evaluation of oncogenicity: Although proof of concept has to be based on the detection of a functional improvement in the animal model, this needs to be evaluated in the context of the drug in question. In some cases gene expression may be adequate for proof of concept, but functional improvement will have to be seen in a subsequent step. Questions over the percentage of dystrophin expression required, the lack of criteria for the evaluation of efficacy, and how to define the length of follow-up required to prove absence of oncogenicity were also discussed. Route of administration (intramuscular, intravenous, loco-regional) - choice / immune reactions: Overall, the choice ...
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At AMPs annual meeting, a researcher presented results of a study to determine the Cobas Liat Influenza A/B assays impact on clinical decision making in the ER.
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Qiagen has entered into exclusive negotiations to acquire 47 percent of Ipsogens stock. After the completion of that deal, Qiagen would move to acquire all remaining shares of the French cancer molecular diagnostic firm.
The third generation of the MDX crossover went on sale this year as a 2022 model with a fully redesigned interior and exterior. A Type S version with a turbocharged V-6 engine will go on sale by the end of the year.. ...
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