| stillbirth of twins in a squirrel monkey (saimiri boliviensis peruviensis). | this is the first published report of twinning in a squirrel monkey (genus saimiri). the mother survived but the twins, both male and close to full term, were stillborn. | 1993 | 8230179 |
| serum and urine biochemical diversity among adult wild-caught aotus nancymae and saimiri peruviensis. | serum and urine analytes were compared between adult wild-caught owl monkeys (aotus nancymae) and adult wild-caught squirrel monkeys (saimiri peruviensis) to determine if normative clinical pathology data were similar. an objective of the study was to confirm that species of neotropical primates are distinct with regard to physiologic parameters, and should not be considered interchangeable in biomedical research. significant differences (p < 0.05) were noted in many serum and urine analytes bet ... | 1996 | 8740952 |
| determination of fetal biparietal diameter without the use of ultrasound in squirrel monkeys. | this study evaluated manual caliper measurement of fetal bpd in saimiri through the abdomen of the dam (tbpd) for correlation with paired ultrasound measurements, prediction of delivery date, subspecies variation, prediction of pregnancy outcome, and correlation between postpartum bpd and tbpd. regression analysis revealed a close relationship between tbpd measurements and those obtained by ultrasound (p < 0.001). tbpd for saimiri boliviensis boliviensis increased from a mean of 14.8 +/- 0.3 mm ... | 1998 | 9926983 |
| social stress in pregnant squirrel monkeys (saimiri boliviensis peruviensis) differentially affects placental transfer of maternal antibody to male and female infants. | the capacity of prenatal stress to disrupt the placental transfer of maternal antibody was evaluated in neonatal squirrel monkeys (saimiri boliviensis peruviensis) gestated under different pregnancy conditions. normal squirrel monkey offspring (n = 63) were compared with infants generated from pregnancies that involved either a single or 3 periods of disturbance (ns = 21 and 29, respectively). at parturition, levels of antibody (igg) were determined in mothers and neonates. only the chronic dist ... | 2000 | 11129358 |
| a survey for helminth parasites in feral new world non-human primate populations and its comparison with parasitological data from man in the region. | a survey for helminth parasites in feral new world non-human primates was conducted and compared with parasitological data from man in the region. a total of 835 fecal samples were collected from feral aotus nancymae, a. vociferans, saguinus labiatus, s. mystax, saimiri boliviensis peruviensis, s. sciureus macrodon, lagothrix lagotricha and cacajao calvus rubicundus. in addition, adult parasites were collected from necropsies performed on monkeys that died during quarantine and in captivity. hel ... | 2003 | 14641789 |
| convergent balancing selection on the mu-opioid receptor in primates. | the mu opioid receptor is involved in many natural processes including stress response, pleasure, and pain. mutations in the gene also have been associated with opiate and alcohol addictions as well as with responsivity to medication targeting these disorders. two common and mutually exclusive polymorphisms have been identified in humans, a118g (n40d), found commonly in non-african populations, and c17t (v6a), found almost exclusively in african populations. while a118g has been studied extensiv ... | 2017 | 28333316 |
| molecular data highlight hybridization in squirrel monkeys (saimiri, cebidae). | hybridization has been reported increasingly frequently in recent years, fueling the debate on its role in the evolutionary history of species. some studies have shown that hybridization is very common in captive new world primates, and hybrid offspring have phenotypes and physiological responses distinct from those of the "pure" parents, due to gene introgression. here we used the ta15 alu insertion to investigate hybridization in the genus saimiri. our results indicate the hybridization of sai ... | 2017 | 27801483 |