Words similar to cumulus

Example sentences for: cumulus

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In primates SPAM1 has been shown to play a role in three functions during fertilization: (1) hyaluronidase enzyme activity necessary for penetrating the cumulus [ 3 ] and for which it is best known [ 4 ] , (2) zona pellucida binding [ 3 ] , and (3) Ca 2+signaling-associated acrosomal exocytosis [ 5 6 7 ] .
The blastocyst formation rate in our study is similar to results from the recent reports in which porcine adult somatic (cumulus) cells (5-10%) [ 29, 51] or fetal fibroblasts (1-16%) [ 11, 29, 51, 52, 53, 54, 55, 56, 57] were transferred into enucleated M II oocytes matured in media supplemented with pFF.
High expression was seen in all the GC of the dominant follicle, except at ovulation when there appeared to be a decrease in BMPR-II mRNA within the cumulus GC (Fig.
Cumulus cells were removed by treating eggs for 3 min with 1 mg/ml hyaluronidase (Sigma, St. Louis, MO) in M199; eggs were washed through four 50-ml drops of M199 medium covered with mineral oil using a pulled , heat-polished, Pasteur pipette (employed in all experiments).
Unlike somatic ubiquitous hyaluronidases that are active only at acidic pH [ 8 ] , SPAM1 has hyaluronidase activity at both neutral and acidic pHs, which arise from two different regions within the hyaluronidase domain [ 4 ] . The neutral enzyme activity, which is predominant in insoluble membrane-bound SPAM1, is necessary for sperm to penetrate the hyaluronic acid (HA)-rich extracellular matrix of the cumulus cells surrounding the oocyte.