Abstract

A role for inhibin and activin in primate oocyte maturation was investigated. The maturation and fertilization of rhesus monkey oocytes recovered from the excised ovaries of nine regularly cycling animals was compared for untreated germinal vesicle (GV) intact controls versus oocytes cultured in the presence of inhibin, activin, inhibin-activin, or in a combination with follistatin (FS). Oocyte progression to metaphase II (MII) and fertilization was monitored in oocytes cultured for 48 hrs. Activin alone stimulated GVB in a dose-dependent manner while both GVB and MII development was enhanced in the presence of inhibin + activin. The latter also accelerated the rate of maturation to MII. All treatment groups exhibited a higher incidence of GVB compared to controls. When follistatin was added, the stimulatory effect of activin or activin + inhibin was abolished. Exposure to medium containing inhibin + activin significantly increased the percentage of MII oocytes that fertilized compared to controls (68% vs 25%, respectively; P<0.01). Inhibin and activin are potent stimulators of primate oocyte maturation, producing mature oocytes in vitro that fertilize with high efficiency.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Primate Research Center Grants (P51)
Project #
5P51RR000163-37
Application #
5219812
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
37
Fiscal Year
1996
Total Cost
Indirect Cost

  Publications

Okoye, Afam A; Hansen, Scott G; Vaidya, Mukta et al. (2018) Early antiretroviral therapy limits SIV reservoir establishment to delay or prevent post-treatment viral rebound. Nat Med 24:1430-1440
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Prola-Netto, Joao; Woods, Mark; Roberts, Victoria H J et al. (2018) Gadolinium Chelate Safety in Pregnancy: Barely Detectable Gadolinium Levels in the Juvenile Nonhuman Primate after in Utero Exposure. Radiology 286:122-128
Moccetti, Federico; Brown, Eran; Xie, Aris et al. (2018) Myocardial Infarction Produces Sustained Proinflammatory Endothelial Activation in Remote Arteries. J Am Coll Cardiol 72:1015-1026
Blue, Steven W; Winchell, Andrea J; Kaucher, Amy V et al. (2018) Simultaneous quantitation of multiple contraceptive hormones in human serum by LC-MS/MS. Contraception 97:363-369
Jeon, Sookyoung; Li, Qiyao; Rubakhin, Stanislav S et al. (2018) 13C-lutein is differentially distributed in tissues of an adult female rhesus macaque following a single oral administration: a pilot study. Nutr Res :
Slayden, Ov Daniel; Friason, Francis Kathryn E; Bond, Kise Rosen et al. (2018) Hormonal regulation of oviductal glycoprotein 1 (OVGP1; MUC9) in the rhesus macaque cervix. J Med Primatol 47:362-370
Dissen, G A; Adachi, K; Lomniczi, A et al. (2017) Engineering a gene silencing viral construct that targets the cat hypothalamus to induce permanent sterility: An update. Reprod Domest Anim 52 Suppl 2:354-358

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