scholarly journals Relative numerousness judgments by squirrel monkeys

1980 ◽  
Vol 16 (2) ◽  
pp. 79-82 ◽  
Author(s):  
Roger K. Thomas ◽  
Laurie Chase
Keyword(s):  
Squirrel Monkeys ◽  
Relative Numerousness

Squirrel Monkeys' Choices in Food

2002 ◽  
Author(s):  
Tammy L. B. McKenzie ◽  
William A. Roberts ◽  
Leanne R. Bird
Keyword(s):  
Squirrel Monkeys

Cognitive Time Travel in Squirrel Monkeys

2005 ◽  
Author(s):  
Mariam Naqshbandi ◽  
William A. Roberts
Keyword(s):  
Time Travel ◽  
Squirrel Monkeys

Endogenous bilirubin excretion in Bolivian squirrel monkeys with a Gilbert's‐like syndrome

1991 ◽  
Vol 20 (3) ◽  
pp. 97-103
Author(s):  
Barbara A. Myers ◽  
Michael L. Bruss ◽  
Jeanne W. George ◽  
Charles E. Cornelius
Keyword(s):  
Squirrel Monkeys ◽  
Bilirubin Excretion

scholarly journals Animal models for pelvic organ prolapse: systematic review

2021 ◽  
Author(s):  
Marina Gabriela M. C. Mori da Cunha ◽  
Katerina Mackova ◽  
Lucie Hajkova Hympanova ◽  
Maria Augusta T. Bortolini ◽  
Jan Deprest
Keyword(s):  
Pelvic Organ Prolapse ◽  
Animal Models ◽  
Vaginal Delivery ◽  
Structural Changes ◽  
Meta Analysis ◽  
Levator Ani ◽  
Complete Recovery ◽  
Pelvic Organ ◽  
Squirrel Monkeys ◽  
Levator Ani Muscle

Abstract Introduction and hypothesis We aimed to summarize the knowledge on the pathogenesis of pelvic organ prolapse (POP) generated in animal models. Methods We searched MEDLINE, Embase, Cochrane and the Web of Science to establish what animal models are used in the study of suggested risk factors for the development of POP, including pregnancy, labor, delivery, parity, aging and menopause. Lack of methodologic uniformity precluded meta-analysis; hence, results are presented as a narrative review. Results A total of 7426 studies were identified, of which 51 were included in the analysis. Pregnancy has a measurable and consistent effect across species. In rats, simulated vaginal delivery induces structural changes in the pelvic floor, without complete recovery of the vaginal muscular layer and its microvasculature, though it does not induce POP. In sheep, first vaginal delivery has a measurable effect on vaginal compliance; measured effects of additional deliveries are inconsistent. Squirrel monkeys can develop POP. Denervation of their levator ani muscle facilitates this process in animals that delivered vaginally. The models used do not develop spontaneous menopause, so it is induced by ovariectomy. Effects of menopause depend on the age at ovariectomy and the interval to measurement. In several species menopause is associated with an increase in collagen content in the longer term. In rodents there were no measurable effects of age apart of elastin changes. We found no usable data for other species. Conclusion In several species there are measurable effects of pregnancy, delivery and iatrogenic menopause. Squirrel monkeys can develop spontaneous prolapse.

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