Document Detail

The detection and monitoring of early pregnancy in the vervet monkey (Cercopithecus aethiops) with the use of ultrasound and correlation with reproductive steroid hormones.
MedLine Citation:
PMID:  10950454     Owner:  NLM     Status:  MEDLINE    
Twenty early pregnancies were diagnosed and monitored in vervet monkeys by ultrasonography. Non-gravid uteri became increasingly echogenic from cycle days 7 to 26. The first definite sign of pregnancy was a gestational cavity of 2 mm (+/- 0.80) at 33.0 (+/- 1.48) days menstrual age, which was also used to date all subsequent features. Earlier signs, such as an endometrial line swelling or endometrial 'pregnancy' ring, as reported for other non-human primate species, could not be reliably and consistently used to diagnose pregnancy in vervet monkeys. A rapid increase of the gestational cavity size from days 37 to 49 corresponded closely to a rapid increase in plasma progesterone concentration from day 39 to 49. The first yolk sac was recognizable at 38.0 days (+/- 3.10) and measured 3.3 mm (+/- 0.40) in diameter. A heart beat could be detected at 45.5 (+/- 1.73) days and the size of the first measurable embryo at 35 days was 2 mm. The dating of most features was within the range reported for other non-human primate species.
J V Seier; G van der Horst; M de Kock; K Chwalisz
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of medical primatology     Volume:  29     ISSN:  0047-2565     ISO Abbreviation:  J. Med. Primatol.     Publication Date:  2000 Apr 
Date Detail:
Created Date:  2000-12-04     Completed Date:  2000-12-04     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0320626     Medline TA:  J Med Primatol     Country:  DENMARK    
Other Details:
Languages:  eng     Pagination:  70-5     Citation Subset:  IM    
Primate Unit, Experimental Biology Programme/MRC, Tygerberg, South Africa.
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MeSH Terms
Cercopithecus aethiops*
Endometrium / physiology,  ultrasonography
Monitoring, Physiologic / methods,  veterinary
Myometrium / physiology,  ultrasonography
Pregnancy, Animal / physiology*
Ultrasonography, Prenatal / methods,  veterinary*

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