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Menstrual cycle synchronization, ovarian stimulation, and in vitro fertilization in olive baboons (Papio anubis): a prospective randomized study.
Fertil Steril. 2009 Feb; 91(2):602-10.FS

Abstract

OBJECTIVE

To synchronize the baboon menstrual cycle and to compare different methods of ovarian stimulation for IVF in baboons.

DESIGN

Prospective randomized study.

SETTING

Institute of Primate Research, Nairobi, Kenya.

ANIMAL(S)

Ten female baboons were treated with an oral contraceptive (33 +/- 8 days) and randomized for ovarian stimulation in two cycles.

INTERVENTION(S)

In cycle 1 (C1), baboons were stimulated as follows: clomiphene citrate (CC) for 5 days followed by antagonist (group CC-1, n = 3); recombinant gonadotropins (rGn: rFSH and rLH) with antagonist (group antagon-1, n = 3); and long GnRH agonist protocol (group LP-1, n = 4). After 1- month rest, in cycle 2 (C2), the baboons were stimulated as follows: CC for 8 days without antagonist (group CC-2, n = 2); short GnRH agonist protocol (group SP-2, n = 4); long GnRH agonist protocol (group LP-2, n = 4). Oocyte aspiration was performed 34-36 hours after injecting 5000 IU recombinant hCG; the oocytes were then fertilized.

MAIN OUTCOME MEASURE(S)

Oocytes retrieved and fertilization rate.

RESULT(S)

Withdrawal bleeding occurred 4 +/- 1 days after the cessation of the contraceptive. Ovarian stimulation using the different protocols resulted in the following mean numbers of retrieved oocytes: LP-1, n = 19; LP-2, n = 19; CC-1, n = 4; CC-2, n = 4; antagon-1, n = 9; and SP-2, n = 14. Fertilization by intracytoplasmic sperm injection varied (23%-54%).

CONCLUSION(S)

The baboon menstrual cycle can be synchronized using an oral contraceptive. A long GnRH agonist protocol for ovarian stimulation may be suitable for ovarian stimulation in baboons.

Authors+Show Affiliations

Leuven University Fertility Centre, University Hospital Gasthuisberg, Leuven, Belgium.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18328482

Citation

Nyachieo, Atunga, et al. "Menstrual Cycle Synchronization, Ovarian Stimulation, and in Vitro Fertilization in Olive Baboons (Papio Anubis): a Prospective Randomized Study." Fertility and Sterility, vol. 91, no. 2, 2009, pp. 602-10.
Nyachieo A, Spiessens C, Chai DC, et al. Menstrual cycle synchronization, ovarian stimulation, and in vitro fertilization in olive baboons (Papio anubis): a prospective randomized study. Fertil Steril. 2009;91(2):602-10.
Nyachieo, A., Spiessens, C., Chai, D. C., Mwenda, J. M., & D'Hooghe, T. M. (2009). Menstrual cycle synchronization, ovarian stimulation, and in vitro fertilization in olive baboons (Papio anubis): a prospective randomized study. Fertility and Sterility, 91(2), 602-10. https://doi.org/10.1016/j.fertnstert.2007.11.071
Nyachieo A, et al. Menstrual Cycle Synchronization, Ovarian Stimulation, and in Vitro Fertilization in Olive Baboons (Papio Anubis): a Prospective Randomized Study. Fertil Steril. 2009;91(2):602-10. PubMed PMID: 18328482.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Menstrual cycle synchronization, ovarian stimulation, and in vitro fertilization in olive baboons (Papio anubis): a prospective randomized study. AU - Nyachieo,Atunga, AU - Spiessens,Carl, AU - Chai,Daniel C, AU - Mwenda,Jason M, AU - D'Hooghe,Thomas M, Y1 - 2008/03/06/ PY - 2006/11/13/received PY - 2007/11/21/revised PY - 2007/11/21/accepted PY - 2008/3/11/pubmed PY - 2009/2/21/medline PY - 2008/3/11/entrez SP - 602 EP - 10 JF - Fertility and sterility JO - Fertil Steril VL - 91 IS - 2 N2 - OBJECTIVE: To synchronize the baboon menstrual cycle and to compare different methods of ovarian stimulation for IVF in baboons. DESIGN: Prospective randomized study. SETTING: Institute of Primate Research, Nairobi, Kenya. ANIMAL(S): Ten female baboons were treated with an oral contraceptive (33 +/- 8 days) and randomized for ovarian stimulation in two cycles. INTERVENTION(S): In cycle 1 (C1), baboons were stimulated as follows: clomiphene citrate (CC) for 5 days followed by antagonist (group CC-1, n = 3); recombinant gonadotropins (rGn: rFSH and rLH) with antagonist (group antagon-1, n = 3); and long GnRH agonist protocol (group LP-1, n = 4). After 1- month rest, in cycle 2 (C2), the baboons were stimulated as follows: CC for 8 days without antagonist (group CC-2, n = 2); short GnRH agonist protocol (group SP-2, n = 4); long GnRH agonist protocol (group LP-2, n = 4). Oocyte aspiration was performed 34-36 hours after injecting 5000 IU recombinant hCG; the oocytes were then fertilized. MAIN OUTCOME MEASURE(S): Oocytes retrieved and fertilization rate. RESULT(S): Withdrawal bleeding occurred 4 +/- 1 days after the cessation of the contraceptive. Ovarian stimulation using the different protocols resulted in the following mean numbers of retrieved oocytes: LP-1, n = 19; LP-2, n = 19; CC-1, n = 4; CC-2, n = 4; antagon-1, n = 9; and SP-2, n = 14. Fertilization by intracytoplasmic sperm injection varied (23%-54%). CONCLUSION(S): The baboon menstrual cycle can be synchronized using an oral contraceptive. A long GnRH agonist protocol for ovarian stimulation may be suitable for ovarian stimulation in baboons. SN - 1556-5653 UR - https://www.unboundmedicine.com/medline/citation/18328482/Menstrual_cycle_synchronization_ovarian_stimulation_and_in_vitro_fertilization_in_olive_baboons__Papio_anubis_:_a_prospective_randomized_study_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0015-0282(07)04136-2 DB - PRIME DP - Unbound Medicine ER -