Pregnancy Diagnosis in Squirrel Monkeys: Hemagglutination
Test, Radioimmunoassay, and Bioassay of Chorionic
Gonadotropin

Hodgen, Gary D.; Stolzenberg, Sidney J.; Jones, David; Hildebrand, David F.; Turner, Charles K.

doi:10.1159/000459786

Cited by 22 publications

(14 citation statements)

References 9 publications

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“…The pattern of tCG excretions found here is similar to that reported earlier for other tamarin and marmoset species [8] and squirrel monkeys [7], which are also New World primates.…”

Section: Discussionsupporting

confidence: 89%

Urinary Chorionic Gonadotropin Levels in Pregnant Golden Lion Tamarins

Kleiman¹,

Gracey²,

Hodgen³

1978

J Med Primatol

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We have established the interval over which urinary chorionic gonadotropin can be detected by a radioimmunoassay during pregnancy in the golden lion tamarin. Preliminary findings indicate the potential value of this radioimmunoassay system for (1) diagnosis of pregnancy at about four weeks after fertilization; (2) estimation of the expected time of delivery; and (3) identification of individual monkeys having an apparent high risk of spontaneous abortion.

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“…The pattern of tCG excretions found here is similar to that reported earlier for other tamarin and marmoset species [8] and squirrel monkeys [7], which are also New World primates.…”

Section: Discussionsupporting

confidence: 89%

Urinary Chorionic Gonadotropin Levels in Pregnant Golden Lion Tamarins

Kleiman¹,

Gracey²,

Hodgen³

1978

J Med Primatol

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“…Urine samples from 60 of the animals in the present report were evaluated by a hemagglutination inhibition procedure (8). Results of the two tests were identical in 137 of the 146 urine samples subjected to the hemag glutinin evaluation, a 94% agreement.…”

Section: Resultsmentioning

confidence: 63%

Studies with Timed-Pregnant Squirrel Monkeys (Saimiri sciureus)

et al. 1979

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Timed-pregnant monkeys were produced in a large nonhabituated colony of Saimiri sciureus of Bolivian origin. In a colony of 373 females and 40 males, 277 females (74%) were considered to be inseminated, based on microscopic observation of sperm and/or detection of a coagulum (plug) in the vagina. Forty-six full-term progeny were delivered. The mean gestational period was 152.5 days (SD = 3.9 days). For continuous cohabitation, the median time to insemination was five days, with 75% of inseminations occurring within eight days. Pregnancy evaluation (mouse bioassay) indicated a high level of resorptions within the first 50 days of gestation. This may help explain the low birthrates reported for other nonhabituated colonies.

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“…Sustained elevations of CG concentrations in the Goeldi's monkey occurred for a mean of 44-8 days, approximately a third of the pregnancy, but this value is shorter than that reported for other New World primates; i.e. 112 days for the common marmoset (Chambers & Hearn, 1979); 100 days for the squirrel monkey, Samiri sciureus (Hodgen et al, 1978); 80 days for the cotton-top tamarin (Ziegler et ai, 1987a) and 60 days for an individual capuchin (Czekala et al, 1981). Data are limited for cebid species and when more are available considerable variability in the duration of CG excretion amongst New World primates may be apparent.…”

Section: Discussionmentioning

confidence: 66%

Urinary excretion of oestrone conjugates and gonadotrophins during pregnancy in the Goeldi's monkey (Callimico goeldii)

Ziegler¹,

Snowdon²,

Warneke³

et al. 1990

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Oestrone conjugate and LH/CG were measured in the urine of 4 Goeldi's monkeys during 6 pregnancies. The gestational length was a mean of 148.8 days from the post-partum LH/CG peak to parturition. CG was first detected a mean of 18.8 days after the LH/CG peak and values remained elevated for a mean of 44.8 days. Three different gonadotrophin assays were used to detect LH/CG: the mouse in-vitro interstitial cell bioassay, a mixed heterologous LH RIA, and a monkey CG RIA. The mouse in-vitro interstitial cell bioassay was useful for measuring both the LH peak which occurred post partum and the CG concentrations during pregnancy. However, both immunoassays were inconsistent in measuring LH due to poor cross-reactivity or lack of specificity; CG concentrations were measurable. Oestrone conjugates became elevated at the time of the LH/CG peak and concentrations continued to increase throughout pregnancy, reaching peak levels before parturition. The postpartum interval, pregnancy and parturition can therefore be monitored in the Goeldi's monkey by the use of urinary assays: those for bioactive LH and immunoreactive oestrone conjugates to determine the post-partum LH peak and those for immunoreactive LH/CG and immunoreactive oestrone conjugates to follow pregnancy and parturition.

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Pregnancy Diagnosis in Squirrel Monkeys: Hemagglutination Test, Radioimmunoassay, and Bioassay of Chorionic Gonadotropin

Cited by 22 publications

References 9 publications

Urinary Chorionic Gonadotropin Levels in Pregnant Golden Lion Tamarins

Urinary Chorionic Gonadotropin Levels in Pregnant Golden Lion Tamarins

Studies with Timed-Pregnant Squirrel Monkeys (Saimiri sciureus)

Urinary excretion of oestrone conjugates and gonadotrophins during pregnancy in the Goeldi's monkey (Callimico goeldii)

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