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Journal articles on the topic 'Primates – Reproduction (biologie)'

Author: Grafiati

Published: 7 July 2024

Last updated: 31 July 2025

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1

Phillips, Sarah Renee, T. L. Goldberg, M. N. Muller, et al. "Faecal parasites increase with age but not reproductive effort in wild female chimpanzees." Philosophical Transactions of the Royal Society B: Biological Sciences 375, no. 1811 (2020): 20190614. http://dx.doi.org/10.1098/rstb.2019.0614.

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Energy investment in reproduction is predicted to trade off against other necessary physiological functions like immunity, but it is unclear to what extent this impacts fitness in long-lived species. Among mammals, female primates, and especially apes, exhibit extensive periods of investment in each offspring. During this time, energy diverted to gestation and lactation is hypothesized to incur short and long-term deficits in maternal immunity and lead to accelerated ageing. We examined the relationship between reproduction and immunity, as measured by faecal parasite counts, in wild female ch

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Brindle, Matilda, and Christopher Opie. "Postcopulatory sexual selection influences baculum evolution in primates and carnivores." Proceedings of the Royal Society B: Biological Sciences 283, no. 1844 (2016): 20161736. http://dx.doi.org/10.1098/rspb.2016.1736.

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The extreme morphological variability of the baculum across mammals is thought to be the result of sexual selection (particularly, high levels of postcopulatory selection). However, the evolutionary trajectory of the mammalian baculum is little studied and evidence for the adaptive function of the baculum has so far been elusive. Here, we use Markov chain Monte Carlo methods implemented in a Bayesian phylogenetic framework to reconstruct baculum evolution across the mammalian class and investigate the rate of baculum length evolution within the primate order. We then test the effects of testes

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Hewitson, Laura. "Primate models for assisted reproductive technologies." Reproduction 128, no. 3 (2004): 293–99. http://dx.doi.org/10.1530/rep.1.00242.

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Although the deliberate creation of human embryos for scientific research is complicated by ethical and practical issues, a detailed understanding of the cellular and molecular events occurring during human fertilization is essential, particularly for understanding infertility. It is clear from cytoskeletal imaging studies of mouse fertilization that this information cannot be extrapolated to humans because of unique differences in centrosomal inheritance. However, the cytoskeletal rearrangements during non-human primate fertilization are very similar to humans, providing a compelling animal m

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Wahab, Fazal, Ignacio Rodriguez Polo, and Rüdiger Behr. "SIRT1 Expression and Regulation in the Primate Testis." International Journal of Molecular Sciences 22, no. 6 (2021): 3207. http://dx.doi.org/10.3390/ijms22063207.

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The epigenetic mechanisms controlling germ cell development and differentiation are still not well understood. Sirtuin-1 (SIRT1) is a nicotinamide adenosine dinucleotide (NAD)-dependent histone deacetylase and belongs to the sirtuin family of deacetylases. It catalyzes the removal of acetyl groups from a number of protein substrates. Some studies reported a role of SIRT1 in the central and peripheral regulation of reproduction in various non-primate species. However, testicular SIRT1 expression and its possible role in the testis have not been analyzed in primates. Here, we document expression

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Rox, Astrid, Sophie Waasdorp, Elisabeth H. M. Sterck, Jan A. M. Langermans, and Annet L. Louwerse. "Multigenerational Social Housing and Group-Rearing Enhance Female Reproductive Success in Captive Rhesus Macaques (Macaca mulatta)." Biology 11, no. 7 (2022): 970. http://dx.doi.org/10.3390/biology11070970.

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To optimize costs and reproductive success, rhesus macaques in biomedical primate research facilities are often peer-reared. Older, dependent infants are typically removed from their natal group to enhance female reproduction. The minimal husbandry age-norm of infant removal is ten months. These practices deviate from species-specific behavior and may reduce welfare, suggesting a trade-off between female reproduction and welfare. However, the effect of breeding group type and rearing history on female reproductive success (i.e., birth rate; inter-birth interval (IBI); offspring survival) is un

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Buchanan-Smith, HM, MJ Prescott, and NJ Cross. "What factors should determine cage sizes for primates in the laboratory?" Animal Welfare 13, S1 (2004): S197—S201. http://dx.doi.org/10.1017/s0962728600014597.

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AbstractIt is imperative to provide adequate quantity and quality of space for all captive animals. Yet practically all guidelines on the housing of primates in the laboratory specify minimum cage sizes based solely on body weight. We argue that no single factor, such as body weight, is sufficient to determine cage size. Instead a suite of characteristics should be used that include morphometric, physiological, ecological, locomotor, social, reproductive and behavioural characteristics. Ideally, the primate's age, sex and individual history should also be taken into account. In this paper we c

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Waddell, B. J. "056. EUTHERIAN MAMMALS DO IT DIFFERENTLY: PLACENTAL ENDOCRINE STRATEGIES FOR THE MAINTENANCE OF PREGNANCY IN RODENTS AND PRIMATES." Reproduction, Fertility and Development 22, no. 9 (2010): 17. http://dx.doi.org/10.1071/srb10abs056.

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The placenta of rats and humans share important anatomical similarities, each with a chorio-allantoic, single discoid, haemochorial structure that facilitates highly efficient nutrient transport. Importantly, however, these similarities reflect convergent evolution and conceal markedly different developmental trajectories and endocrine functions. Placental endocrine signals are essential to drive maternal adaptations that facilitate fetal development and ultimately successful birth. Central to these adaptations is a sustained increase in production of the sex steroids progesterone and oestroge

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Zühlke, U., and G. Weinbauer. "The Common Marmoset (Callithrix jacchus) as a Model in Toxicology." Toxicologic Pathology 31, no. 1_suppl (2003): 123–27. http://dx.doi.org/10.1080/01926230390175002.

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The common marmoset, Callithrix jacchus, is the smallest nonhuman primate commonly used in biomedical research. Marmoset characteristics and propensities have enabled them to be used in a wide range of research as a model of human disease, physiology, drug metabolism, general toxicology, and reproductive biology. This paper provides a general overview of the marmoset with special emphasis on the benefits and disadvantages of this species as a model for inclusion in preclinical drug development programmes. In view of its small size in comparison with other nonrodent species marmosets have becom

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9

Kappeler, Peter M. "Sex roles and adult sex ratios: insights from mammalian biology and consequences for primate behaviour." Philosophical Transactions of the Royal Society B: Biological Sciences 372, no. 1729 (2017): 20160321. http://dx.doi.org/10.1098/rstb.2016.0321.

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Theoretical models and empirical studies in various taxa have identified important links between variation in sex roles and the number of adult males and females (adult sex ratio (ASR)) in a population. In this review, I examine these relationships in non-human primates. Because most existing theoretical models of the evolution of sex roles focus on the evolutionary origins of sex-biased behaviour, they offer only a general scaffold for predicting variation in sex roles among and within species. I argue that studies examining sex role variation at these more specific levels need to take social

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10

Lee, Y. S., C. A. VandeVoort, and K. E. Latham. "188 EFFECTS OF IN VITRO MATURATION ON GENE EXPRESSION IN RHESUS MONKEY OOCYTES." Reproduction, Fertility and Development 21, no. 1 (2009): 193. http://dx.doi.org/10.1071/rdv21n1ab188.

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Assisted reproduction technologies (ARTs) are achieving increasing prominence in reproductive medicine. With the increasing application of ARTs comes increased interest in optimizing efficiency while minimizing potential risks to the offspring. One area of assisted reproduction in which improvements are being sought is in vitro oocyte maturation. In vitro oocyte maturation (IVM) holds great promise as a tool for enhancing clinical treatment of infertility, enhancing availability of non-human primates for development of disease models, and facilitating endangered species preservation. However,

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11

Jasienska, Grazyna. "Costs of reproduction and ageing in the human female." Philosophical Transactions of the Royal Society B: Biological Sciences 375, no. 1811 (2020): 20190615. http://dx.doi.org/10.1098/rstb.2019.0615.

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Evolutionary theories of ageing point to reproduction as a significant factor to consider when asking why ageing occurs and why there is inter-individual variation in its progression. Reproduction in human females is costly, in terms of energy, nutrients and metabolic adjustments. Thus, it is expected that women who experienced high reproductive effort resulting from multiple reproductive events will age faster. However, the evidence for long-term negative effects of reproduction is not conclusive. The lack of understanding of whether there are trade-offs between reproduction and ageing in wom

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Comizzoli, Pierre, and William V. Holt. "Breakthroughs and new horizons in reproductive biology of rare and endangered animal species." Biology of Reproduction 101, no. 3 (2019): 514–25. http://dx.doi.org/10.1093/biolre/ioz031.

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Abstract Because of higher extinction rates due to human and natural factors, more basic and applied research in reproductive biology is required to preserve wild species and design proper strategies leading to sustainable populations. The objective of the review is to highlight recent, inspiring breakthroughs in wildlife reproduction science that will set directions for future research and lead to more successes in conservation biology. Despite new tools and approaches allowing a better and faster understanding of key mechanisms, we still know little about reproduction in endangered species.

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Negrey, Jacob D., Melissa Emery Thompson, Kevin E. Langergraber, et al. "Demography, life-history trade-offs, and the gastrointestinal virome of wild chimpanzees." Philosophical Transactions of the Royal Society B: Biological Sciences 375, no. 1811 (2020): 20190613. http://dx.doi.org/10.1098/rstb.2019.0613.

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In humans, senescence increases susceptibility to viral infection. However, comparative data on viral infection in free-living non-human primates—even in our closest living relatives, chimpanzees and bonobos ( Pan troglodytes and P. paniscus )—are relatively scarce, thereby constraining an evolutionary understanding of age-related patterns of viral infection. We investigated a population of wild eastern chimpanzees ( P. t. schweinfurthii ), using metagenomics to characterize viromes (full viral communities) in the faeces of 42 sexually mature chimpanzees (22 males, 20 females) from the Kanyawa

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14

Snyder-Mackler, Noah, Susan C. Alberts, and Thore J. Bergman. "Concessions of an alpha male? Cooperative defence and shared reproduction in multi-male primate groups." Proceedings of the Royal Society B: Biological Sciences 279, no. 1743 (2012): 3788–95. http://dx.doi.org/10.1098/rspb.2012.0842.

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By living in social groups with potential competitors, animals forgo monopolizing access to resources. Consequently, debate continues over how selection might favour sociality among competitors. For example, several models exist to account for the evolution of shared reproduction in groups. The ‘concession model’ hypothesizes that dominant reproducers benefit from the presence of subordinates, and hence tolerate some reproduction by subordinates. This mutual benefit to both dominants and subordinates may provide a foundation for the formation of social groups in which multiple members reproduc

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Kraft, Thomas S., Jonathan Stieglitz, Benjamin C. Trumble, Angela R. Garcia, Hillard Kaplan, and Michael Gurven. "Multi-system physiological dysregulation and ageing in a subsistence population." Philosophical Transactions of the Royal Society B: Biological Sciences 375, no. 1811 (2020): 20190610. http://dx.doi.org/10.1098/rstb.2019.0610.

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Humans have the longest post-reproductive lifespans and lowest rates of actuarial ageing among primates. Understanding the links between slow actuarial ageing and physiological change is critical for improving the human ‘healthspan’. Physiological dysregulation may be a key feature of ageing in industrialized populations with high burdens of chronic ‘diseases of civilization’, but little is known about age trajectories of physiological condition in subsistence populations with limited access to public health infrastructure. To better characterize human physiological dysregulation, we examined

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Yang, S. Y., P. C. Cheng, and A. W. S. Chan. "6 LENTIVIRAL TRANSGENESIS IN MICE AND NONHUMAN PRIMATES." Reproduction, Fertility and Development 20, no. 1 (2008): 83. http://dx.doi.org/10.1071/rdv20n1ab6.

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Transgenic technology is a powerful tool for investigating gene function and regulation in species ranging from fly to higher primates. The role of transgenic animal modeling has become more prominent in biomedical research; therefore, a highly efficient method for producing transgenic animals is critical for the advancement of animal modeling of genetic disorders, especially in species with limited access such as nonhuman primates. Lentiviral transgenesis is one of most efficient methods in generating transgenic animals, and has been applied in different species including mice, rats, pigs, an

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17

Baiz, Marcella D., Priscilla K. Tucker, Jacob L. Mueller, and Liliana Cortés-Ortiz. "X-Linked Signature of Reproductive Isolation in Humans is Mirrored in a Howler Monkey Hybrid Zone." Journal of Heredity 111, no. 5 (2020): 419–28. http://dx.doi.org/10.1093/jhered/esaa021.

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Abstract Reproductive isolation is a fundamental step in speciation. While sex chromosomes have been linked to reproductive isolation in many model systems, including hominids, genetic studies of the contribution of sex chromosome loci to speciation for natural populations are relatively sparse. Natural hybrid zones can help identify genomic regions contributing to reproductive isolation, like hybrid incompatibility loci, since these regions exhibit reduced introgression between parental species. Here, we use a primate hybrid zone (Alouatta palliata × Alouatta pigra) to test for reduced introg

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18

Sankai, Tadashi, and Nobuhiro Shimozawa. "Current Reproductive Research in Non-Human Primates." Journal of Mammalian Ova Research 23, no. 4 (2006): 163–75. http://dx.doi.org/10.1274/jmor.23.163.

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19

Hewitson, Laura, and Gerald Schatten. "The use of primates as models for assisted reproduction." Reproductive BioMedicine Online 5, no. 1 (2002): 50–55. http://dx.doi.org/10.1016/s1472-6483(10)61598-2.

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20

Thompson, Melissa Emery. "Primate Reproduction: When Timing Is Everything." Current Biology 31, no. 1 (2021): R11—R13. http://dx.doi.org/10.1016/j.cub.2020.11.029.

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21

Liu, Lei, and Fang Fang. "Long Noncoding RNA Mediated Regulation in Human Embryogenesis, Pluripotency, and Reproduction." Stem Cells International 2022 (January 22, 2022): 1–19. http://dx.doi.org/10.1155/2022/8051717.

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Long noncoding RNAs (lncRNAs), a class of noncoding RNAs with more than 200 bp in length, are produced by pervasive transcription in mammalian genomes and regulate gene expression through various action mechanisms. Accumulating data indicate that lncRNAs mediate essential biological functions in human development, including early embryogenesis, induction of pluripotency, and germ cell development. Comprehensive analysis of sequencing data highlights that lncRNAs are expressed in a stage-specific and human/primate-specific pattern during early human development. They contribute to cell fate det

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Bellofiore, Nadia, Stacey J. Ellery, Peter Temple-Smith, and Jemma Evans. "Pseudopregnancy and reproductive cycle synchronisation cannot be induced using conventional methods in the spiny mouse (Acomys cahirinus)." Reproduction, Fertility and Development 32, no. 4 (2020): 363. http://dx.doi.org/10.1071/rd18506.

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The menstruating spiny mouse is the first rodent identified to exhibit natural spontaneous decidualisation, cyclical endometrial shedding and regeneration. While the spiny mouse shares several primate-like characteristics in its reproductive biology, it has not been established whether pseudopregnancy can be induced or if its cycles can be synchronised as in non-human mammals. Here we describe attempts to induce pseudopregnancy and synchronisation of menstrual cycles (i.e. Whitten effect) in spiny mice. Virgin females (n=3–8 per group) underwent one of the following procedures to induce pseudo

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Thomas, Gregg W. C., Richard J. Wang, Arthi Puri, et al. "Reproductive Longevity Predicts Mutation Rates in Primates." Current Biology 28, no. 19 (2018): 3193–97. http://dx.doi.org/10.1016/j.cub.2018.08.050.

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Riehl, Christina, and Meghan J. Strong. "Stable social relationships between unrelated females increase individual fitness in a cooperative bird." Proceedings of the Royal Society B: Biological Sciences 285, no. 1876 (2018): 20180130. http://dx.doi.org/10.1098/rspb.2018.0130.

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Social animals often form long-lasting relationships with fellow group members, usually with close kin. In primates, strong social bonds have been associated with increased longevity, offspring survival and reproductive success. However, little is known about the fitness effects of social bonds between non-kin, especially outside of mammals. In this study, we use long-term field research on a cooperatively breeding bird, the greater ani ( Crotophaga major ), to ask whether adult females benefit by remaining in long-term associations with unrelated, co-breeding females. We find that females tha

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Fraser, Hamish M., and W. Colin Duncan. "SRB Reproduction, Fertility and Development Award Lecture 2008. Regulation and manipulation of angiogenesis in the ovary and endometrium." Reproduction, Fertility and Development 21, no. 3 (2009): 377. http://dx.doi.org/10.1071/rd08272.

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The marked cyclical physiological angiogenesis in the developing follicle, corpus luteum and endometrium implies a critical role in health and disease. Our approach to understanding its regulation has been to localise and quantify the temporal changes in putative angiogenic factors, and their receptors, in human and non-human primate tissue and to use antagonists to dissect their role by specific inhibition at defined periods during the ovulatory cycle in non-human primates in vivo. The course of angiogenesis throughout the cycle and the cellular and molecular effects of inhibitory treatments

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Froenicke, L., S. M. Nichols, H. M. Kubisch, L. A. Lyons, B. D. Bavister, and C. A. Brenner. "242 DEVELOPMENT OF BAC FISH PROBES FOR GENETIC ANALYSIS OF NON-HUMAN PRIMATE GAMETES AND EMBRYONIC STEM CELLS." Reproduction, Fertility and Development 17, no. 2 (2005): 271. http://dx.doi.org/10.1071/rdv17n2ab242.

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Several factors relating to reproductive health and gamete competence must be considered when implementing programs for propagation of genetically valuable primates via natural breeding or assisted reproductive technologies. These relevant factors include ascertaining gamete chromosome normality of individuals. Our early attempts at characterizing aneuploidy levels of gametes within a model primate species, the rhesus macaque, utilizing Vysis centromeric fluorescent in situ hybridization (FISH) probes, failed to produce a signal. Commercially available probe sets for interphase cytogenetics re

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Garcia, Cécile, Sébastien Bouret, François Druelle, and Sandrine Prat. "Balancing costs and benefits in primates: ecological and palaeoanthropological views." Philosophical Transactions of the Royal Society B: Biological Sciences 376, no. 1819 (2021): 20190667. http://dx.doi.org/10.1098/rstb.2019.0667.

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Maintaining the balance between costs and benefits is challenging for species living in complex and dynamic socio-ecological environments, such as primates, but also crucial for shaping life history, reproductive and feeding strategies. Indeed, individuals must decide to invest time and energy to obtain food, services and partners, with little direct feedback on the success of their investments. Whereas decision-making relies heavily upon cognition in humans, the extent to which it also involves cognition in other species, based on their environmental constraints, has remained a challenging qu

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Drea, Christine M. "Design, delivery and perception of condition-dependent chemical signals in strepsirrhine primates: implications for human olfactory communication." Philosophical Transactions of the Royal Society B: Biological Sciences 375, no. 1800 (2020): 20190264. http://dx.doi.org/10.1098/rstb.2019.0264.

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The study of human chemical communication benefits from comparative perspectives that relate humans, conceptually and empirically, to other primates. All major primate groups rely on intraspecific chemosignals, but strepsirrhines present the greatest diversity and specialization, providing a rich framework for examining design, delivery and perception. Strepsirrhines actively scent mark, possess a functional vomeronasal organ, investigate scents via olfactory and gustatory means, and are exquisitely sensitive to chemically encoded messages. Variation in delivery, scent mixing and multimodality

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Chellman, Gary J., Jeanine L. Bussiere, Norbert Makori, Pauline L. Martin, Yojiro Ooshima, and Gerhard F. Weinbauer. "Developmental and reproductive toxicology studies in nonhuman primates." Birth Defects Research Part B: Developmental and Reproductive Toxicology 86, no. 6 (2009): 446–62. http://dx.doi.org/10.1002/bdrb.20216.

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Rooker, Kelly, and Sergey Gavrilets. "On the evolution of visual female sexual signalling." Proceedings of the Royal Society B: Biological Sciences 285, no. 1879 (2018): 20172875. http://dx.doi.org/10.1098/rspb.2017.2875.

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A long-standing evolutionary puzzle surrounds female sexual signals visible around the time of ovulation. Even among just primates, why do some species have substantial sexual swellings and/or bright colorations visible around females' genital regions, while other species are like humans, with no signs of ovulation visible? What is the evolutionary purpose behind not just these signs, but also this great variation seen among species? Here, we examine the evolutionary trade-offs associated with visual ovulation signalling using agent-based modelling. Our model predicts how various factors, incl

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Gustison, Morgan L., Aliza le Roux, and Thore J. Bergman. "Derived vocalizations of geladas ( Theropithecus gelada ) and the evolution of vocal complexity in primates." Philosophical Transactions of the Royal Society B: Biological Sciences 367, no. 1597 (2012): 1847–59. http://dx.doi.org/10.1098/rstb.2011.0218.

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Primates are intensely social and exhibit extreme variation in social structure, making them particularly well suited for uncovering evolutionary connections between sociality and vocal complexity. Although comparative studies find a correlation between social and vocal complexity, the function of large vocal repertoires in more complex societies remains unclear. We compared the vocal complexity found in primates to both mammals in general and human language in particular and found that non-human primates are not unusual in the complexity of their vocal repertoires. To better understand the fu

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Eghlidi, Dominique H., Vasilios T. Garyfallou, Steven G. Kohama, and Henryk F. Urbanski. "Age-associated gene expression changes in the arcuate nucleus of male rhesus macaques." Journal of Molecular Endocrinology 59, no. 2 (2017): 141–49. http://dx.doi.org/10.1530/jme-17-0094.

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The hypothalamic arcuate nucleus (ARC) represents a major component of the neuroendocrine reproductive axis and plays an important role in controlling the onset of puberty as well as age-associated reproductive senescence. Although significant gene expression changes have been observed in the ARC during sexual maturation, it is unclear what changes occur during aging, especially in males. Therefore, in the present study, we profiled the expression of reproduction-related genes in the ARC of young and old male rhesus macaques, as well as old males that had received 6 months of hormone supplemen

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Sierens, JE, GA Scobie, J. Wilson, and PT Saunders. "Cloning of oestrogen receptor beta from Old and New World primates: identification of splice variants and functional analysis." Journal of Molecular Endocrinology 32, no. 3 (2004): 703–18. http://dx.doi.org/10.1677/jme.0.0320703.

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Oestrogens have a major impact on reproductive function in both males and females. Two oestrogen receptor genes known as ERalpha (ESR1NR3A1) and ERbeta (ESR2NR3A2) have been cloned. Splice variant isoforms of the ERbeta gene have been identified in human, bovine and rodents and it has been suggested that the existence of these forms can influence oestrogen responsiveness. In the human, splicing of an alternative eighth exon results in the formation of a C-terminal variant called hERbetacx, or hERbeta2, but this isoform has not been identified in other species. The aim of the present study was

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Yoshimatsu, Sho, Iori Kisu, Emi Qian, and Toshiaki Noce. "A New Horizon in Reproductive Research with Pluripotent Stem Cells: Successful In Vitro Gametogenesis in Rodents, Its Application to Large Animals, and Future In Vitro Reconstitution of Reproductive Organs Such as “Uteroid” and “Oviductoid”." Biology 11, no. 7 (2022): 987. http://dx.doi.org/10.3390/biology11070987.

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Recent success in derivation of functional gametes (oocytes and spermatozoa) from pluripotent stem cells (PSCs) of rodents has made it feasible for future application to large animals including endangered species and to ultimately humans. Here, we summarize backgrounds and recent studies on in vitro gametogenesis from rodent PSCs, and similar approaches using PSCs from large animals, including livestock, nonhuman primates (NHPs), and humans. We also describe additional developing approaches for in vitro reconstitution of reproductive organs, such as the ovary (ovarioid), testis (testisoid), an

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Snowdon, Charles T., Toni E. Ziegler, Nancy J. Schultz-Darken, and Craig F. Ferris. "Social odours, sexual arousal and pairbonding in primates." Philosophical Transactions of the Royal Society B: Biological Sciences 361, no. 1476 (2006): 2079–89. http://dx.doi.org/10.1098/rstb.2006.1932.

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We describe the role of social odours in sexual arousal and maintaining pairbonds in biparental and cooperatively breeding primates. Social odours are complex chemical mixtures produced by an organism that can simultaneously provide information about species, kinship, sex, individuality and reproductive state. They are long lasting and have advantages over other modalities. Both sexes are sensitive to changes in odours over the reproductive cycle and experimental disruption of signals can lead to altered sexual behaviour within a pair. We demonstrate, using functional magnetic resonance imagin

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Sayasith, Khampoune, Nadine Bouchard, Monique Doré, and Jean Sirois. "Cloning of equine prostaglandin dehydrogenase and its gonadotropin-dependent regulation in theca and mural granulosa cells of equine preovulatory follicles during the ovulatory process." Reproduction 133, no. 2 (2007): 455–66. http://dx.doi.org/10.1530/rep-06-0210.

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The mammalian ovulatory process is accompanied by a gonadotropin-dependent increase in follicular levels of prostaglandin E2 (PGE2) and PGF2α, which are metabolized by 15-hydroxy prostaglandin dehydrogenase (PGDH). Little is known about ovarian PGDH regulation in non-primate species. The objectives of this study were to characterize the structure of equine PGDH and its regulation in follicles during human chorionic gonadotropin (hCG)-induced ovulation. The full-length equine PGDH was obtained by RT-PCR, 5′- and 3′-rapid amplification of cDNA ends (RACE). Its open reading frame encodes a 266-am

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Walker, Margaret L., Daniel C. Anderson, James G. Herndon, and Lary C. Walker. "Ovarian aging in squirrel monkeys (Saimiri sciureus)." REPRODUCTION 138, no. 5 (2009): 793–99. http://dx.doi.org/10.1530/rep-08-0449.

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In female squirrel monkeys (Saimiri sciureus), the reproductive period normally extends from ∼2.5 years to the mid-teens. In the present study, we examined the age-associated cytological changes in the ovaries of 24 squirrel monkeys ranging in age from newborn to ∼20 years. We found a significant, age-related decline in the number of primordial follicles, with the most pronounced loss occurring between birth and 5 years. After ∼8 years of age, relatively few primordial follicles were evident in the ovarian sections examined. An unusual feature of the aging squirrel monkey ovary is the emergenc

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Henson, M. C., K. F. Swan, D. E. Edwards, G. W. Hoyle, J. Purcell, and V. D. Castracane. "Leptin receptor expression in fetal lung increases in late gestation in the baboon: a model for human pregnancy." Reproduction 127, no. 1 (2004): 87–94. http://dx.doi.org/10.1530/rep.1.00037.

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Leptin produced by both adipose tissue and the placental trophoblast, has been proposed to regulate numerous aspects of human conceptus development. Although recent animal studies have suggested an additional role for the polypeptide in fetal lung maturation, no evidence has been reported in primates. Therefore, we employed the baboon (Papio sp.), a well-characterized primate model for human pregnancy, to determine the presence and ontogeny of leptin receptor in fetal lung with advancing gestation. Lungs were collected from fetal baboons, early in gestation (days 58–62, n = 4), at mid gestatio

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Tao, Ya-Xiong, and Yong-Qing Cao. "Trophoblast interferons of primates." Placenta 13, no. 4 (1992): A62. http://dx.doi.org/10.1016/0143-4004(92)90185-v.

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Gibson, T., T. Quebedeaux, S. Rajasekaran, and C. Brenner. "128 MITOCHONDRIAL DNA DELETIONS IN RHESUS MACAQUE OOCYTES, EMBRYOS, AND ADULT AND EMBRYONIC STEM CELLS." Reproduction, Fertility and Development 18, no. 2 (2006): 173. http://dx.doi.org/10.1071/rdv18n2ab128.

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Mitochondria are the most abundant organelles in mammalian oocytes and early embryos. Previous data have shown that mitochondrial DNA (mtDNA) deletions are present both in human oocytes and in embryos from in vitro fertilization (IVF) patients and suggest that accumulation of these deletions may contribute to mitochondrial dysfunction and impaired ATP production. In addition, high levels of mitochondrial mutations are present in skeletal muscle fibers from aged rhesus macaques. The specific aims of this study were to determine whether the mitochondrial common deletion is present in non-human p

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Carter, Anthony M. "Animal models of human pregnancy and placentation: alternatives to the mouse." Reproduction 160, no. 6 (2020): R129—R143. http://dx.doi.org/10.1530/rep-20-0354.

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The mouse is often criticized as a model for pregnancy research as gestation is short, with much of organ development completed postnatally. There are also differences in the structure and physiology of the placenta between mouse and human. This review considers eight alternative models that recently have been proposed and two established ones that seem underutilized. A promising newcomer among rodents is the spiny mouse, which has a longer gestation than the mouse with organogenesis complete at birth. The guinea pig is also recommended both because it has well-developed neonates and because t

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Sharma, Swati, Bastien Venzac, Thomas Burgers, Séverine Le Gac, and Stefan Schlatt. "Microfluidics in male reproduction: is ex vivo culture of primate testis tissue a future strategy for ART or toxicology research?" Molecular Human Reproduction 26, no. 3 (2020): 179–92. http://dx.doi.org/10.1093/molehr/gaaa006.

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Abstract The significant rise in male infertility disorders over the years has led to extensive research efforts to recapitulate the process of male gametogenesis in vitro and to identify essential mechanisms involved in spermatogenesis, notably for clinical applications. A promising technology to bridge this research gap is organ-on-chip (OoC) technology, which has gradually transformed the research landscape in ART and offers new opportunities to develop advanced in vitro culture systems. With exquisite control on a cell or tissue microenvironment, customized organ-specific structures can be

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Tsuchiya, H., C. Iwatani, J. Okahara-Narita, J. Yamasaki, and R. Torii. "60 INFLUENCE OF HOECHST STAINING FOR NUCLEAR TRANSFER ON PARTHENOGENETIC EMBRYOS IN CYNOMOLGUS MONKEYS (MACACA FASCICULARIS)." Reproduction, Fertility and Development 20, no. 1 (2008): 111. http://dx.doi.org/10.1071/rdv20n1ab60.

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Nonhuman primates are valuable animal models for the study of human diseases, and somatic cell nuclear transfer (SCNT) is an important method for establishing tailor-made embryonic stem (ES) cells and transgenic animals in these model species. However, there have been few reports on SCNT in nonhuman primates. Moreover, the development of cloned blastocysts could be influenced by any chemical reagents and manipulations used in this technique. In this study we compared blastocyst developmental rates with and without Hoechst staining. Metaphase II (MII) oocytes were collected from hormone-treated

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Cowlishaw, Guy, Richard A. Pettifor, and Nick J. B. Isaac. "High variability in patterns of population decline: the importance of local processes in species extinctions." Proceedings of the Royal Society B: Biological Sciences 276, no. 1654 (2008): 63–69. http://dx.doi.org/10.1098/rspb.2008.0767.

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A fundamental goal of conservation science is to improve conservation practice. Understanding species extinction patterns has been a central approach towards this objective. However, uncertainty remains about the extent to which species-level patterns reliably indicate population phenomena at the scale of local sites, where conservation ultimately takes place. Here, we explore the importance of both species- and site-specific components of variation in local population declines following habitat disturbance, and test a suite of hypotheses about their intrinsic and extrinsic drivers. To achieve

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Piotrowska-Nitsche, Karolina, Shang-Hsun Yang, Heather Banta, and Anthony WS Chan. "Assisted fertilization and embryonic axis formation in higher primates." Reproductive BioMedicine Online 18, no. 3 (2009): 382–90. http://dx.doi.org/10.1016/s1472-6483(10)60097-1.

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Cline, J. Mark, Gunnar Söderqvist, Thomas C. Register, J. Koudy Williams, Michael R. Adams, and Bo Von Schoultz. "Assessment of Hormonally Active Agents in the Reproductive Tract of Female Nonhuman Primates." Toxicologic Pathology 29, no. 1 (2001): 84–90. http://dx.doi.org/10.1080/019262301301418883.

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Rahbaran, Mohaddeseh, Ehsan Razeghian, Marwah Suliman Maashi, et al. "Cloning and Embryo Splitting in Mammalians: Brief History, Methods, and Achievements." Stem Cells International 2021 (November 30, 2021): 1–11. http://dx.doi.org/10.1155/2021/2347506.

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Embryo splitting is one of the newest developed methods in reproductive biotechnology. In this method, after splitting embryos in 2-, 4-, and even 8-cell stages, every single blastomere can be developed separately, but the embryos are genetically identical. Embryo splitting, as an approach in reproductive cloning, is extensively employed in reproductive medicine studies, such as investigating human diseases, treating sterility, embryo donation, and gene therapy. In the present study, cloning in mammalians and cloning approaches are briefly reviewed. In addition, embryo splitting and the method

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Lu, C. L., J. Yan, X. Zhi, et al. "Basic fibroblast growth factor promotes macaque follicle development in vitro." REPRODUCTION 149, no. 5 (2015): 425–33. http://dx.doi.org/10.1530/rep-14-0557.

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Fertility preservation is an important type of frontier scientific research in the field of reproductive health. The culture of ovarian cortices to i) initiate primordial follicle growth and ii) procure developing follicles for later oocyte maturation is a promising fertility preservation strategy, especially for older women or cancer patients. At present, this goal remains largely unsubstantiated in primates because of the difficulty in attaining relatively large follicles via ovarian cortex culture. To overcome this hurdle, we cultured macaque monkey ovarian cortices with FSH, kit ligand (KL

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YOSHIDA, Takashi. "Similarities and Differences in Reproductive Endocrinology Between Non-Human Primates and Humans." Congenital Anomalies 39, no. 4 (1999): 209–22. http://dx.doi.org/10.1111/j.1741-4520.1999.tb00561.x.

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Ehmcke, Jens, and Stefan Schlatt. "A revised model for spermatogonial expansion in man: lessons from non-human primates." Reproduction 132, no. 5 (2006): 673–80. http://dx.doi.org/10.1530/rep.1.01081.

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We have recently described a revised scheme for spermatogonial expansion in non-human primates. We proposed that Apale-spermatogonia act as self-renewing progenitors and premeiotic germ cells are organized and divide as small clones. Here, we are revisiting the model described for man and propose a modified scheme for spermatogonial expansion. Our revised model shows high similarity to the scheme proposed for non-human primates and is in accordance with all previous and present data.

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