The cumulus oophorus, (discus proligerus), is a cluster of cells that surround the oocyte both in the ovarian follicle and ... This layer of cells must be penetrated by spermatozoa for fertilization to occur. Functions of the cumulus oophorus include ... Cumulus oophorus cells contribute heavily to the maturation and eventual fertilization of an oocyte. As a follicle grows in ... As a part of the process of in vitro fertilization, gene expression profiling of cumulus cells can be performed to estimate ...
"Intensification of single cell storms prior to lightning onset". Atmos Sci Lett. 20 (e873): e873. doi:10.1002/asl.873. "What is ... Cumulus congestus clouds, also known as towering cumulus, are a form of cumulus that can be based in the low or middle height ... Cumulus congestus clouds are formed by the development of cumulus mediocris generally, though they can also be formed from ... The congestus species of cloud can only be found in the genus cumulus and is designated as towering cumulus (TCu) by the ...
Cumulus Cells (CC) vs Mural Granulosa Cells (MGC) Cumulus cells surround the oocyte. They provide nutrients to the oocyte and ... Journal of cell science, 120(8), 1330-1340. Khamsi, F., & Roberge, S. (2001). Granulosa cells of the cumulus oophorus are ... Following the LH surge, cumulus cells undergo cumulus expansion, in which they proliferate at a ten-fold higher rate than MGCs ... A granulosa cell or follicular cell is a somatic cell of the sex cord that is closely associated with the developing female ...
Capacitated sperm are attracted to progesterone, which is secreted from the cumulus cells surrounding the oocyte. Progesterone ... Some sperm cells consume their acrosome prematurely on the surface of the egg cell, facilitating the penetration by other sperm ... "The sperm chemoattractant secreted from human cumulus cells is progesterone". Human Reproduction. 23 (10): 2339-2345. doi: ... Molecular Biology of the Cell. 4th Edition. Angier N (2007-06-12). "Sleek, Fast and Focused: The Cells That Make Dad Dad". The ...
ZIP12 mRNA is more abundant in mouse oocytes compared to cumulus cells, which indicates that ZIP12 may play a role in ... Lisle RS, Anthony K, Randall MA, Diaz FJ (April 2013). "Oocyte-cumulus cell interactions regulate free intracellular zinc in ... In Neuro-2a cells and primary mouse neurons transfected with shRNA specifically targeting ZIP12, the neural cells have shorter ... To study how ZIP12 is important for a neural cell to extend neurites out from the cell body, researchers used short hairpin RNA ...
2009). "MATER protein as substrate of PKCepsilon in human cumulus cells". Mol. Hum. Reprod. 15 (8): 499-506. doi:10.1093/molehr ... 2009). "Human MATER localization in specific cell domains of oocytes and follicular cells". Reprod. Biomed. Online. 18 (2): 226 ... Cell Biol. 4 (2): 95-104. doi:10.1038/nrm1019. PMID 12563287. S2CID 31417018. Maraldi T, Riccio M, Sena P, et al. ( ... gene and protein in pig somatic tissues and germ cells". J. Reprod. Dev. 56 (1): 41-8. doi:10.1262/jrd.09-098a. PMID 19815987 ...
Wang HX, Tekpetey FR, Kidder GM (2009). "Identification of WNT/beta-CATENIN signaling pathway components in human cumulus cells ... 2008). "Relation between cell-to-cell adhesion and angiogenesis and clinico-morphological prognostic factors in patients with ... "Ph+/VE-cadherin+ identifies a stem cell like population of acute lymphoblastic leukemia sustained by bone marrow niche cells". ... Cell. Biol. 28 (24): 7368-79. doi:10.1128/MCB.00744-08. PMC 2593444. PMID 18852287. Sharma M, Henderson BR (2007). "IQ-domain ...
... glycoprotein composition and cell-to-cell interactions in the cumulus-oocyte complex. Fowler continued to work and publish into ... Steroid production from 17α-hydoxypregnenolone and dehydroepiandrosterone by human granulosa cells in vitro. Reproduction, 54(1 ... steroidogenesis in human granulosa cells and follicular growth; ...
Wang HX, Tekpetey FR, Kidder GM (2009). "Identification of WNT/beta-CATENIN signaling pathway components in human cumulus cells ... 2007). "Regulation of norrin receptor frizzled-4 by Wnt2 in colon-derived cells". BMC Cell Biol. 8: 12. doi:10.1186/1471-2121-8 ... 2009). "Downregulation of Wnt2 and beta-catenin by siRNA suppresses malignant glioma cell growth". Cancer Gene Ther. 16 (4): ... These proteins have been implicated in oncogenesis and in several developmental processes, including regulation of cell fate ...
Pangas SA, Li X, Robertson EJ, Matzuk MM (June 2006). "Premature luteinization and cumulus cell defects in ovarian-specific ... If the SMAD 4 mutation is acquired, it will only exist in certain somatic cells. Indeed, SMAD 4 is not synthesized by all cells ... If inherited, the mutation affects both somatic cells and cells of the reproductive organs. ... expression of the genes involved in cell growth is no longer regulated and cell proliferation can go on without any inhibition ...
Oocytes are classified depending on their condition, such as number of cumulus cells. The best oocytes are chosen to be matured ... Ouandaogo ZG, Assou S, Haouzi D, Anahory T, Dechaud H, Hamamah S (2010). "Gene expression profile in human cumulus cells of ... This results in an expanding or dispersed pattern of the cumulus oophorus around the egg cell, facilitating its identification ... develop into primary follicle containing cuboidal granulosa cells. A secondary follicle is formed with a few granulosa cell ...
Microarray data for cumulus cells during natural and stimulated in vitro fertilization show relatively high levels of ... "Modified natural and stimulated in vitro fertilization cycles: cumulus cells - - GEO DataSets - NCBI". www.ncbi.nlm.nih.gov. ...
Found in Cumulus Oophorus, stimulates binding of the spermatozoa to the zona pellucida. First, cumulus cells reduce the ... cumulus cell, immune cell and clinical associations". Human Reproduction Update. 13 (3): 275-87. doi:10.1093/humupd/dmm004. ... inhibits proliferation and induces apoptosis in monocytic cells". The International Journal of Biochemistry & Cell Biology. 41 ... The de-glycosilation takes place during the passage of the sperm through the corona cell layer. Glycodelin F is thereby ...
For ovulation to be successful, the ovum must be supported by the corona radiata and cumulus oophorous granulosa cells. The ... Mucification is the secretion of a hyaluronic acid-rich cocktail that disperses and gathers the cumulus cell network in a ... By this time, the oocyte has completed meiosis I, yielding two cells: the larger secondary oocyte that contains all of the ... "Cumulus Oophorus - an overview". sciencedirect.com. 2012. Retrieved 2023-05-22. "Can You Get Pregnant after Ovulation?". ...
However, some cells can rise to 70,000 feet. Another option would be to navigate around the cells. This is strongly discouraged ... He entered a seemingly innocuous cumulus at 2,000 feet (610 m). This cumulus evolved into a large cumulonimbus. At first, the ... Moreover, even the cumulus congestus associated with a supercell thunderstorm can be very dangerous. Tornadoes can be produced ... In particular, in the forward area of the supercell, one can find a flanking line made of cumulus congestus or small ...
Huang Z, Wells D (October 2010). "The human oocyte and cumulus cells relationship: new insights from the cumulus cell ... The cumulus-oocyte complex contains layers of tightly packed cumulus cells surrounding the oocyte in the Graafian follicle. The ... Before ovulation, the cumulus complex goes through a structural change known as cumulus expansion. The granulosa cells ... The female germ cells produce a primordial germ cell (PGC), which then undergoes mitosis, forming oogonia. During oogenesis, ...
Most follicular granulosa cells stay around the oocyte and so form the cumulus layer. Large non-mammalian oocytes accumulate ... These researchers produced primordial germ cell-like cells (PGLCs) from embryonic stem cells (ESCs) and skin cells in vitro. ... A germ cell is any cell that gives rise to the gametes of an organism that reproduces sexually. In many animals, the germ cells ... Germ cells produce gametes and are the only cells that can undergo meiosis as well as mitosis. Somatic cells are all the other ...
Progesterone from the cumulus cells is the sperm chemoattractant secreted by the rabbit oocyte cumulus complex. PLOS One 3, ... One is the cumulus cells that surround the oocyte, and the other is the mature oocyte itself. The chemoattractant secreted from ... The subsequent findings that cumulus cells of both human and rabbit (and, probably, of other mammals as well) secrete the ... Cell Biol. 7, 276-285. Alvarez, L., Friedrich, B.M., Gompper, G., Kaupp. U.B. (2013). "The computational sperm cell". Trends in ...
Typical of later stages of follicle development is the appearance of cumulus cells. GDF9 causes the expansion of cumulus cells ... allowing the expansion of cumulus cells. Silencing of GDF9 expression results in the absence of cumulus cell expansion, this ... Single-cell expression analysis of BMP15 and GDF9 in mature oocytes and BMPR2 in cumulus cells of women with polycystic ovary ... cumulus and theca cells. Paracrine interactions between the developing oocyte and its surrounding follicular cells is essential ...
... cells into egg cells which had their nuclei removed. They used human egg cells and cumulus cells, which are found in ovaries ... After emptying an egg of its nuclues, they transfer the nucleus of the cumulus cell into it. The new egg cell divided normally ... embryonic stem cells derived from skin cells. Their study claimed the creation of 11 different stem cell lines that were the ... cells from a somatic cell isolated from a living person." It was the first instance of cloning of adult human cells and human ...
One is the cumulus cells that surround the oocyte, and the other is the mature oocyte itself. The chemoattractant secreted from ... The subsequent findings that cumulus cells of both human and rabbit (and, probably, of other mammals as well) secrete the ... A key feature of sperm chemotaxis in humans is that this process is restricted to capacitated cells - the only cells that ... and sperm chemoattractants secreted from the oocyte and its surrounding cumulus cells, respectively - strongly suggest the ...
She was named after the cumulus cells surrounding the developing oocyte in the ovarian follicle in mice. Nuclei from these ... cells were put into egg cell devoid of their original nuclei in the Honolulu cloning technique. All other mice produced by the ... Cumulina (October 3, 1997 - May 5, 2000), a mouse, was the first animal cloned from adult cells that survived to adulthood. She ...
Cumulus oophorus are the cells surrounding corona radiata, and are the cells between corona radiata and follicular antrum. Its ... The corona radiata is the innermost layer of the cells of the cumulus oophorus and is directly adjacent to the zona pellucida, ... These cuboidal granulosa cells, also known as the granulosa radiata, form more layers throughout the maturation process, and ... The corona radiata is formed when the granulosa cells enlarge and become cuboidal, which occurs during the transition from the ...
... after the cumulus cells whose nuclei were used to clone her. At the time of the publication of this work, over fifty mice ... cell nuclei as well as the production of pluripotent stem cells from adult cells for therapeutic purposes. He retired in 2005, ... The first male animal cloned from adult cells was announced in 1999. In 2004 the laboratory participated in the cloning of an ... The so-called "testis" in an adult animal is a receptacle of cells from larval males. This discovery revolutionized biological ...
... and excrete the oocyte with a complement of cumulus cells in a process called ovulation. In natural cycles, ovulation may occur ... Each type of cell behaves differently in response to FSH. Theca interna cells express receptors for luteinizing hormone (LH). ... In addition, as more estrogen is secreted, more LH receptors are made by the theca cells, inciting theca cells to create more ... adjacent to the antrum and cumulus oophorus, which connects the membrana and corona radiata granulosa cells together. ...
In the laboratory, for ICSI treatments, the identified eggs are stripped of surrounding cells (also known as cumulus cells) and ... Characteristics of cells from the cumulus oophorus and the membrana granulosa, which are easily aspirated during oocyte ... Before the transfer of a pre-embryo back to a woman's uterus, one or two cells are removed from the pre-embryos (8-cell stage ... In both PGS and PGD, individual cells from a pre-embryo, or preferably trophectoderm cells biopsied from a blastocyst, are ...
... s are often indicated by the presence of visible isolated cumulus clouds at the top of the thermal. Cumulus clouds are ... Thermals are also seen on the sun, typically forming hexagonal convective prisms (Bénard cells). Air current Atmospheric ... When a steady wind is present, thermals and their respective cumulus clouds can align in rows oriented with wind direction, ... thermodynamics Cumulus cloud Gliding Hang gliding Thermal energy "Glider Flying Handbook, FAA-H-8083-13A" (PDF). FAA government ...
Because of the molecular interactions between cumulus cells and the oocyte, gene expression profiling of cumulus cells can be ... Sampling of cumulus cells can be performed in addition to a sampling of polar bodies or cells from the embryo. ... Oocytes are carefully denudated from the cumulus cells, as these cells can be a source of contamination during the PGD if PCR- ... By relying on the result of one cell from the multi-cell embryo, PGD operates under the assumption that this cell is ...
... and finally cumulus cells. Experimental evidence has demonstrated that the released contents of the cortical granules modify ... This space is called the cortical granule free domain (CGFD) and has been observed in both the cell's meiotic spindle regions ... The oocyte has been shown to obtain maximum proficiency for releasing calcium at this same cell stage, between metaphase I and ... Within the oocyte, cortical granules are located along the cortex, the region furthest from the cell's center. Following ...
"Mouse sperm lacking cell surface hyaluronidase PH-20 can pass through the layer of cumulus cells and fertilize the egg". The ... White blood cells produce hyaluronidase to move more easily through connective tissue to get to infected sites. Plasma ... The majority of mammalian ova are covered in a layer of granulosa cells intertwined in an extracellular matrix that contains a ... In mammalian fertilization, hyaluronidase is released by the acrosome of the sperm cell after it has reached the oocyte, by ...
... glider US Aviation Cumulus, motorglider Cumulus Media, a radio broadcasting company Cumulus oophorus, cells which surround a ... Cumulus is a type of cloud with the appearance of a lump of cotton wool. Cumulus may also refer to: Cumulus (software), digital ... a defunct computer hardware company Cumulus Networks, a computer software company Reinhard Cumulus, ... Look up cumulus in Wiktionary, the free dictionary. ... page lists articles associated with the title Cumulus. If an ...