Article
Agriculture, Dairy & Animal Science
Jasmine Fusi, Maria Cristina Veronesi, Alberto Prandi, Monica Probo, Massimo Faustini, Tanja Peric
Summary: This study investigated the changes in sexual hormones in dogs during puberty using hair and nail samples to analyze the concentrations of testosterone (T), 17 beta-estradiol (E2), and progesterone (P4). Traditional methods using blood samples are not suitable for long-term studies, but hair and nails have been identified as suitable retrospective biological specimens. The results showed significant increases in T levels in male dogs and E2 levels at puberty and P4 levels after puberty in female dogs. Hair and nail T and nail P4 concentrations could differentiate between male and female dogs at specific sampling times. This study demonstrates the usefulness of hair and nails as biological specimens for studying the changes in T, E2, and P4 during the peripubertal period in dogs.
Article
Environmental Sciences
Brooke N. Anderson, Juliana Kaloczi, Courtney Holden, Amanda Einig, Linda Donaldson, Hunter Malone, Michelle S. Passerotti, Lisa J. Natanson, Heather D. Bowlby, James A. Sulikowski
Summary: This study used frozen stored porbeagle muscle tissues to analyze the relationship between testosterone and estradiol concentrations and maturity and reproductive stage. The results suggest that muscle hormone concentrations have the potential to serve as a non-lethal indicator of reproductive stage in oophagous sharks. The study also highlights the value of specimen sharing and continued use of stored vertebral muscle tissue for reproductive hormone analysis to maximize data obtained from biological samples. These methods would be particularly valuable for research on threatened species.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Olga Rubin, Osher Soffer, Yaniv Levy, Joseph Aizen
Summary: By monitoring the concentrations of sex hormones and blood chemistry in female green turtles, it is possible to predict their nesting activity. This study found significant changes in hormone levels and blood chemistry parameters in relation to nesting activity. These findings can help predict and prepare for nesting activities in green sea turtles, contributing to successful breeding programs.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Endocrinology & Metabolism
Marilize Van der Walt, Lorin A. Neuman-Lee, Patricia A. Terletzky, Todd C. Atwood, Eric M. Gese, Susannah S. French
Summary: Polar bears rely on sea ice to hunt seals, their primary prey. With decreasing sea ice, there is a reduced access to prey, leading to potential physiological stress and impact on reproductive function. The study found that hormone concentrations in polar bear hair can be used to measure reproductive function, providing a valuable tool for monitoring the effects of climate change on polar bear physiology.
GENERAL AND COMPARATIVE ENDOCRINOLOGY
(2021)
Article
Zoology
Peijun Zhang, Zhengzhi Wei, Suk-Wai Hui, Grant Abel, Paolo Martelli, Yujiang Hao, Songhai Li
Summary: The study on female Indo-Pacific bottlenose dolphins in Ocean Park Hong Kong found that captivity dolphins reach puberty at 5 years and sexual maturity at 6. The serum concentrations of progesterone and estradiol were higher in sexually mature individuals compared to immature ones, with a bimodal pattern of progesterone levels during pregnancy. Serum testosterone concentrations were significantly elevated in a specific month compared to others.
INTEGRATIVE ZOOLOGY
(2021)
Article
Public, Environmental & Occupational Health
Amy L. Shafrir, Fan Mu, A. Heather Eliassen, Madhavi Thombre Kulkarni, Kathryn L. Terry, Susan E. Hankinson, Stacey A. Missmer
Summary: This study aimed to assess the association between endogenous steroid hormone levels and endometriosis. The results showed that women with higher levels of total estradiol during the early follicular phase had an increased risk of endometriosis. However, other hormone levels did not show a significant association with the risk of the disease.
AMERICAN JOURNAL OF EPIDEMIOLOGY
(2023)
Review
Physiology
Charlene Hanlon, Clara J. Ziezold, Gregoy Y. Bedecarrats
Summary: Estradiol-17 beta (E-2) plays a crucial role in the sexual maturation and egg production of hens. It can be synthesized not only by the gonads, but also by various non-gonadal tissues. This review highlights the sources, activity, and impact of E-2 in these tissues, as well as its importance in embryonic development, hen maturation, yolk formation, and skeletal development.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Endocrinology & Metabolism
Viola Schon, Michael P. Hengartner, Enrico Tronci, Toni Mancini, Fabian Ille, Susanna Roblitz, Tillmann Kruege, Brigitte Leeners
Summary: This study investigated the relationship between steroid hormones and women's sexual attraction, and found no significant effect of steroid hormone levels on sexual attraction in naturally cycling women or women undergoing fertility treatment.
PSYCHONEUROENDOCRINOLOGY
(2023)
Article
Physiology
Charlene Hanlon, Kayo Takeshima, Gregoy Y. Bedecarrats
Summary: Genetic selection for earlier sexual maturation and extended production cycles in laying hens has improved reproductive efficiency significantly. Changes in the control of the hypothalamic-pituitary gonadal axis have likely occurred, with sustained pituitary sensitivity to GnRH-I, recurrent elevations in FSH mRNA levels, and cyclical elevations in E-2 levels being key factors in sustaining extended laying periods.
FRONTIERS IN PHYSIOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Amy Lu, Jacob A. Feder, Noah Snyder-Mackler, Thore J. Bergman, Jacinta C. Beehner
Summary: The timing of female maturation in wild mammals can be influenced by a variety of factors, including ecological and social variables. This study provides the first evidence of male-mediated maturation in a wild primate, the gelada, where the arrival of new male individuals can impact the maturation process of young females. The findings suggest that male-mediated maturation, whether accelerating, on-time, or delayed, may be governed by similar neuroendocrine processes.
Article
Agriculture, Dairy & Animal Science
Shuaifei Song, Wenfei Ding, Hui Yao, Lei Wang, Bijun Li, Yukun Wang, Xue Tang, Yiyu Zhang, Deli Huang, Dejun Xu, Zhongquan Zhao
Summary: The findings showed that BMP6 had no significant effects on the proliferation, cell cycle, and apoptosis of goat ovarian granulosa cells. However, it did increase the secretion of 17 beta-estradiol (E2) and progesterone (P4) by upregulating the mRNA expression of CYP19A1 and CYP11A1.
Article
Fisheries
Oleksandr Malinovskyi, Hadiseh Dadras, Tomas Penka, Tomas Policar
Summary: This study assessed partner selection and its impact on reproductive efficiency in pikeperch during seasonal nest spawning. Female pikeperch preferred larger males in 77% of spawning events, as they displayed more consistent cleaning efforts towards the nest. The size and hormone levels of males did not affect egg distribution, clustering, and larvae production, highlighting the importance of female partner selection for successful reproduction in pikeperch.
Article
Environmental Sciences
Fumei Gao, Xiaohua Zhang, Xinming Shen, Fanrong Zhao, Huan Shen, Jianying Hu
Summary: This study analyzed the effects of aryl-organophosphate esters (aryl-OPEs) on female reproduction health and identified specific exposure biomarkers. The results suggest that aryl-OPEs may disrupt hormone homeostasis and have negative impacts on female reproduction.
ENVIRONMENT INTERNATIONAL
(2022)
Article
Agriculture, Dairy & Animal Science
Claudia Maistrelli, Marion Schmicke, Martina Hoedemaker, Ursula Siebert
Summary: This study is significant for understanding the sexual maturation process of wild boars. By measuring the concentrations of testosterone and estradiol, the sexual maturity status of wild boars can be determined. The research found that wild boars before 12 months of age had high hormone levels, indicating that they may attempt to reproduce. The hormone levels at the end of the mating season were high, shifting the farrowing time from spring to summer.
Article
Biochemistry & Molecular Biology
Eleonora Persoons, Sara Kerselaers, Thomas Voets, Joris Vriens, Katharina Held
Summary: Sex hormone steroidal drugs, including pregnenolone sulphate (PS), were found to modulate the ion channel TRPM3. These drugs have both activating and inhibiting effects on TRPM3, with a common steroidal interaction site. They exhibit increased activity on TRPM3 at physiological temperatures and in channels with disease-associated mutations, providing valuable insights into TRPM3 gating and sensitivity to ligands.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Biodiversity Conservation
Lidwina Bertrand, Magdalena Victoria Monferran, Isabelle Metais, Catherine Mouneyrac, Maria Valeria Ame
ECOLOGICAL INDICATORS
(2015)
Article
Environmental Sciences
Sofiene Tlili, Isabelle Metais, Hamadi Boussetta, Catherine Mouneyrac
Article
Environmental Sciences
Sofiene Tlili, Isabelle Metais, Nadia Ayache, Hamadi Boussetta, Catherine Mouneyrac
Article
Environmental Sciences
Inna Boldina-Cosqueric, Jean-Claude Amiard, Claude Amiard-Triquet, Odile Dedourge-Geffard, Isabelle Metais, Catherine Mouneyrac, Benjamin Moutel, Brigitte Berthet
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2010)
Review
Environmental Sciences
V. Leignel, J. H. Stillman, S. Baringou, R. Thabet, I. Metais
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2014)
Article
Zoology
P. Gillet, V. Surugiu, R. Vasile, I. Metais, M. Mouloud, P. Simo
ITALIAN JOURNAL OF ZOOLOGY
(2011)
Article
Environmental Sciences
Isabelle Metais, Elsa Mengue Ekouma, Romina Ngpan, Serge Planes, Catherine Mouneyrac
MARINE POLLUTION BULLETIN
(2012)
Article
Environmental Sciences
Pierre-Emmanuel Buffet, Aurore Zalouk-Vergnoux, Amelie Chatel, Brigitte Berthet, Isabelle Metais, Hanane Perrein-Ettajani, Laurence Poirier, Andrea Luna-Acosta, Helene Thomas-Guyon, Christine Risso-de Faverney, Marielle Guibbolini, Douglas Gilliland, Eugenia Valsami-Jones, Catherine Mouneyrac
SCIENCE OF THE TOTAL ENVIRONMENT
(2014)
Article
Agronomy
Mathew W. Blair, Hector F. Buendia, Martha C. Giraldo, Isabelle Metais, Didier Peltier
THEORETICAL AND APPLIED GENETICS
(2008)
Article
Environmental Sciences
Isabelle Metais, Amelie Chatel, Mohammed Mouloud, Hanane Perrein-Ettajani, Melanie Bruneau, Patrick Gillet, Nisrine Jrad, Catherine Mouneyrac
MARINE POLLUTION BULLETIN
(2019)
Article
Environmental Sciences
Amelie Chatel, Melanie Auffan, Hanane Perrein-Ettajani, Lenka Brousset, Isabelle Metais, Perrine Chaurand, Mohammed Mouloud, Simon Clavaguera, Yohann Gandolfo, Melanie Bruneau, Armand Masion, Alain Thiery, Jerome Rose, Catherine Mouneyrac
Article
Environmental Sciences
Alice Vidal, Ngoc-nam Phuong, Isabelle Metais, Johnny Gasperi, Amelie Chatel
Summary: This study focused on the influence of anthropogenic activities on microplastic levels in the Loire River in a French city. Microscopy and mu-FTIR analysis were used to determine the characteristics and composition of microplastics in samples collected from upstream and downstream areas. The results showed that the presence of microplastics did not follow a specific pattern, but there was a clear correlation between clams and sediment, emphasizing the importance of investigating plastic contamination in both biotic and abiotic matrices.
ENVIRONMENTAL POLLUTION
(2023)
Article
Environmental Sciences
Isabelle Metais, Oihana Latchere, Coraline Roman, Hanane Perrein-Ettajani, Mohammed Mouloud, Didier Georges, Thybaud Audroin, Charlotte Catrouillet, Julien Gigault, Agnes-Feurtet-Mazel, Magalie Baudrimont, Amelie Chatel
Summary: This study evaluates the impact of microplastics (MPs) and nanoplastics (NPs) on Scrobicularia plana and compares the effects of plastic polymers size on different organs. The results show different toxic effects depending on the type, size, and concentration of plastic. The study emphasizes the need to test plastics collected from the environment and to consider the size effects.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Agronomy
I Métais, B Hamon, R Jalouzot, D Peltier
THEORETICAL AND APPLIED GENETICS
(2002)
Article
Endocrinology & Metabolism
Xiaomeng Li, Charles Brighton Ndandala, Qi Zhou, Chunyan Huang, Guangli Li, Huapu Chen
Summary: This study investigated the role of estrogen receptors (ERs) in vitellogenesis (Vtgs) regulation in pompano fish. The findings suggest that E2 may regulate the expression of different subtypes of vtg through ERs, displaying a compensatory expression effect on the regulation of ers and vtgs. This provides a theoretical basis for further research on reproductive endocrinology in pompano fish.
GENERAL AND COMPARATIVE ENDOCRINOLOGY
(2024)
Article
Endocrinology & Metabolism
Norio Kansaku, Takeshi Ohkubo
Summary: Endocrine changes during bird reproduction, particularly the relationship between prolactin and incubation behavior, were investigated. The study monitored the physiological status and incubation behavior of Silkie hens over 1-2 years. The results showed that most mature hens exhibited incubation behavior multiple times, and there was a noticeable increase in nest occupancy 7-10 days before incubation onset. Protein analysis revealed that secreted prolactin during the reproductive cycle contains various isoforms, suggesting post-translational modifications like glycosylation and phosphorylation.
GENERAL AND COMPARATIVE ENDOCRINOLOGY
(2024)
Article
Endocrinology & Metabolism
Minghui Li, Lina Sun, Linyan Zhou, Deshou Wang
Summary: This article summarizes the importance of the Nile tilapia as an excellent animal model for studying reproductive endocrinology in fish, with a focus on the crucial role of estrogen in female development.
GENERAL AND COMPARATIVE ENDOCRINOLOGY
(2024)
Article
Endocrinology & Metabolism
Breanna N. Harris, Carolyn M. Bauer, James A. Carr, Caitlin R. Gabor, Jennifer L. Grindstaff, Caleigh Guoynes, Jennifer J. Heppner, Cris C. Ledon-Rettig, Patricia C. Lopes, Sharon E. Lynn, Carla B. Madelaire, Lorin A. Neuman-Lee, Maria G. Palacios, Paul Soto, Jennifer Terry
Summary: The COVID-19 pandemic had a significant impact on academics, particularly on those with minoritized identities or who were early career, caregivers, or had intersecting identities. The pandemic altered the impact factors of academia, including scholarly products, and affected the way individuals could respond. It is predicted that the pandemic will have long-term impacts on the population dynamics, composition, and landscape of the academic ecosystem. The number of journal submissions decreased, especially among women authors, and the pandemic heavily impacted women authors from Asia and the Middle East.
GENERAL AND COMPARATIVE ENDOCRINOLOGY
(2024)