Physical, hormonal and behavioural aspects of sexual development in the marmoset monkey, Callithrix jacchus

Abbott, David H.; Hearn, Jack

doi:10.1530/jrf.0.0530155

Cited by 268 publications

(231 citation statements)

References 10 publications

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“…Testicular volumes obtained through ultrasonography were lower than manual measurements (Abbott & Hearn 1978), but were significantly correlated to testicular weight, indicating a linear relationship between them, which has been suggested previously (Jackson & Edmunds 1984). Ultrasonography proved its usefulness in prediction of puberty and testicular development, particularly through gray-scale assessment of testis in this species.…”

Section: Discussionsupporting

confidence: 65%

“…This, in association with available concentrations of testosterone might be the reason why the marmoset initiated copulation between these two age groups (Abbott & Hearn 1978). Our observations about endocrine and reproductive changes around puberty provide substantial baseline values in the marmoset monkey (C. jacchus), which should be helpful in designing future studies in this model.…”

Section: Discussionmentioning

confidence: 79%

“…In the marmoset monkey, a neonatal activation of pituitary-gonadal axis occurs (Lunn et al 1994) up to wk 15 or 16 (Abbott & Hearn 1978). The quiescent period was reported to continue until the age of 35 wk with non-detectable testosterone concentrations (Lunn et al 1997, Kelnar et al 2002.…”

Section: Discussionmentioning

confidence: 99%

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Changes in endocrine profile and reproductive organs during puberty in the male marmoset monkey (Callithrix jacchus)

Chandolia¹,

Luetjens²,

Wistuba³

et al. 2006

Reproduction

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Data on pubertal maturation in male marmoset, a model for human reproduction, are scant and conflicting. We collected data on novel parameters to characterize puberty. Twenty-five marmoset monkeys were assigned to five age groups by weeks (wk): 21 (pre-pubertal), 43 (onset of puberty), 52 (fully pubertal), 70 (mature), and 116 (fully adult). Serum and intratesticular testosterone and pituitary bioactive chorionic gonadotropin (bioCG) were measured. Testicular development was assessed by ultrasonography, histology, and flow cytometry. Three consecutive blood samples revealed extreme fluctuations in testosterone concentrations, suggesting an erratic secretion. Age-related changes in serum testosterone and pituitary bioCG concentrations were observed. Intratesticular androgens (ITAs) showed high fluctuations within groups at all ages and were high in some animals by 21 wk. Unexpectedly, no correlation between pituitary bioCG and serum testosterone or ITAs was found, but these parameters significantly correlated with testicular weight and volume. These observations were consistent a dependence on the testis growth on bioCG. Unfortunately, the low serum levels of bioCG were not measurable in this study. At 43 wk, the animals reached puberty. At 52 wk of age, animals attained maximum body and epididymal weights and qualitatively normal spermatogenesis, but testes continued growing, reaching a maximum of all parameters at 70 wk of age, without further major changes at the age of 116 wk. It is concluded that (1) gonadal activation is evident at wk 21, (2) the male marmoset reaches the pubertal threshold around 43 wk of age, attains qualitative parameters at 52 wk, matures further to sexual maturity at 70 wk, and (3) serum testosterone and ITAs are highly variable without any identifiable correlation with pituitary bioCG.

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Section: Discussionsupporting

confidence: 65%

Section: Discussionmentioning

confidence: 79%

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Changes in endocrine profile and reproductive organs during puberty in the male marmoset monkey (Callithrix jacchus)

Chandolia¹,

Luetjens²,

Wistuba³

et al. 2006

Reproduction

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“…Our results showed that androgen levels excreted by adult and juvenile common marmoset males were similar to those found in plasma (27,28), being about 50% lower in juveniles. Adult sons presented significantly higher basal androgen levels than juveniles and also than their fathers but no differences in androgen levels were found between fathers living with adult and juvenile sons.…”

Section: Discussionsupporting

confidence: 80%

Fecal androgen levels in common marmoset (Callithrix jacchus) males living in captive family groups

Castro

Sousa

2005

Braz J Med Biol Res

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In captive common marmoset groups, the reproductive inhibition observed in subordinate female seems to be a result of olfactory, visual and behavioral cues from the dominant female. However, few studies have examined the relationship among adult males living in the same social group. These studies have shown that reproductive failure among peer males seems to be based on hormonal and behavioral mechanisms. New insights on sexual strategies in primates have been shown using fecal steroids, but so far no information is available for common marmoset males. In the present study, we evaluated the influence of light-dark cycle, age and reproductive condition on the profile of fecal androgens in males living in the same family group. Feces were collected from six fathers and six sons for androgen determination during the light phase of the 24-h cycle for eight days randomly distributed over a 4-week period. Androgen levels were determined by enzyme immunoassay technique. Adult sons showed higher androgen levels (166.97 ± 22.95 ng/g) than fathers (80.69 ± 44.38 ng/g) and juveniles (49.06 ± 23.15 ng/g; P < 0.05). No diurnal variation (P > 0.05) in fecal androgen profile was observed in adults or juveniles. No indication of androgen-mediated social competition between fathers and adult sons was demonstrable. These results provide basic information on fecal androgen profile useful to investigate the socioendocrinology of free-ranging common marmoset males and verify that, in contrast to daughters, the reproductive suppression of sons is not based on physiological inhibition of their gonads.

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“…All females were of adult body size and weight, at least 20 months of age and therefore of reproductive age (common marmoset: Abbott and Hearn, 1978;Goeldi's monkey: Dettling and Pryce, 1999). The study animals were maintained in the primate station of the Anthropological Institute, University of Zurich.…”

Section: Study Animals and Housing Conditionsmentioning

confidence: 99%

Different ovarian responses to potential mates underlie species-specific breeding strategies in common marmoset and Goeldi's monkey

Mattle

Pryce

Anzenberger

2008

Hormones and Behavior

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Physical, hormonal and behavioural aspects of sexual development in the marmoset monkey, Callithrix jacchus

Cited by 268 publications

References 10 publications

Changes in endocrine profile and reproductive organs during puberty in the male marmoset monkey (Callithrix jacchus)

Changes in endocrine profile and reproductive organs during puberty in the male marmoset monkey (Callithrix jacchus)

Fecal androgen levels in common marmoset (Callithrix jacchus) males living in captive family groups

Different ovarian responses to potential mates underlie species-specific breeding strategies in common marmoset and Goeldi's monkey

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