Results 71 to 80 of about 30,379 (234)

Climate‐Modulated Particle Toxicity: Acute Exposure to an Environmentally Informed Microplastic Mixture Induces Sex‐Dependent Systemic Reorganization in Swiss Mice

Environmental Toxicology, EarlyView.
ABSTRACT Microplastic (MP) pollution is widely recognized as an emerging environmental threat. Yet, most studies still rely on controlled experimental conditions that poorly reflect environmental complexity, potentially underestimating risks under realistic scenarios, particularly during short‐term exposures. Here, we tested whether acute oral exposure
Guilherme Malafaia, Rafaela Ribeiro de Brito, Aline Sueli de Lima de Rodrigues, Omar Cruz Santiago, Andrés Hugo Arias, Thiarlen Marinho da Luz   +5 more
wiley   +1 more source

Recovery from Age-Related Infertility under Environmental Light-Dark Cycles Adjusted to the Intrinsic Circadian Period

Cell Reports, 2015
Female reproductive function changes during aging with the estrous cycle becoming more irregular during the transition to menopause. We found that intermittent shifts of the light-dark cycle disrupted regularity of estrous cycles in middle-aged female ...
Nana N. Takasu, Takahiro J. Nakamura, Isao T. Tokuda, Takeshi Todo, Gene D. Block, Wataru Nakamura   +5 more
doaj   +1 more source

Recurrence of Estrous Cycles in the Light-Induced Persistent Estrous Rats by Reserpine

Endocrinologia Japonica, 1976
Effect of continuous illumination (LL) on ovarian functions was compared at various ages between the rats exposed to LL from 70 days of age (LL-70) and exposed to LL from the day of birth (LL-0). LL-0 rats retained corpora lutea in their ovaries in higher incidence than LL-70 rats. Effect of reserpine on the restoration of cyclicity was studied in LL-0
SHIRAMA, KAZUHIKO, TAKEO, YUJI, SHIMIZU, KIYOSHI, MAEKAWA, KYUTARO   +3 more
openaire   +3 more sources

Evaluation of a commercial automated assay for rapid serum progesterone determination in cattle, sheep and goats

Veterinary Record, EarlyView.
Abstract Background In ruminants, information on serum progesterone concentrations can be important in monitoring the oestrous cycle for pregnancy testing and the detection of endocrine disorders. We aimed to evaluate the suitability of a commercial enzyme‐linked fluorescence assay (ELFA), the MINI VIDAS (bioMérieux, Nürtingen), for measuring ...
Lina Längerer, Gerhard Schuler, Henrik Wagner, Kathrin Büttner, Axel Wehrend   +4 more
wiley   +1 more source

Assessing physiological, behavioral and movement responses to Suprelorin implant delivery methods in free‐ranging eastern grey kangaroos Macropus giganteus

Wildlife Biology, EarlyView.
Overabundant populations of eastern grey kangaroos Macropus giganteus in peri‐urban areas pose ecological and social challenges. Current management strategies are often hindered by animal welfare and logistical concerns. This study aimed to assess stress responses of kangaroos to two contraceptive delivery methods.
Fabiola R. O. Silva, Sebastien Comte, Tamara Keeley, Maquel Brandimarti, Catherine A. Herbert   +4 more
wiley   +1 more source

Fecal Glucocorticoid and Androgen Metabolites in Eastern Gray Kangaroos (Macropus giganteus) Following Environmental Relocation

Zoo Biology, EarlyView.
Fecal glucocorticoid (GCM) and androgen metabolite (AM) concentrations were monitored for 3 months following the relocation of three eastern gray kangaroos (Macropus giganteus) between zoological facilities. Both metabolites showed high concentrations during the early postrelocation period, followed by a rapid decline and stabilization, suggesting ...
Laura Menchetti, Rupert Palme, Livio Galosi, Giacomo Rossi, Elena Fraticelli, Gaia Andrea Bevinetto, Gioia Gaiot, Renato Piccinini, Raffaello Gambi, Matteo Cerquetella   +9 more
wiley   +1 more source

Characterization of the estrous cycle in Galea spixii(Wagler, 1831)

Pesquisa Veterinária Brasileira, 2015
The Galea spixii inhabits semiarid vegetation of Caatinga in the Brazilian Northeast. They are bred in captivity for the development of researches on the biology of reproduction.
Amilton C. Santos, Diego C. Viana, Bruno M. Bertassoli, Gleidson B. Oliveira, Daniela M. Oliveira, Ferdinando V.F. Bezerra, Moacir F. Oliveira, Antônio C. Assis-Neto   +7 more
doaj   +1 more source

Microbial and Metabolic Correlates of Endometrial Dysfunction in Polycystic Ovary Syndrome: A Translational Study

BJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.
ABSTRACT Objective Women with polycystic ovary syndrome (PCOS) exhibit a substantially increased risk of miscarriage, yet the underlying mechanisms remain inadequately understood. This study aimed to investigate whether specific gut microbial dysbiosis and metabolic disturbance are associated with and may potentially contribute to endometrial ...
Mengyu Jing, Xi Chen, Meiyan Jiang, Huiya Fang, Xiaoming Zhu, Xuejing Jin, Yonghui Jiao, Ningning Hou, Weiwei Gong, Aixia Liu   +9 more
wiley   +1 more source

Follicular Development Dynamics and Plasma Progesterone Profile during the Estrous Cycle of Dairy Cows

Animal Production: Indonesian Journal of Animal Production, 2008
A total of five local Friesian cows, 4 to 5 years, healthy, reproductively sound, were used in the study to understand the development dynamics of dominant follicles and plasma progesterone profile during estrous cycle.
PP Putro, R Wasito, H Wuryastuty, S Indarjulianto   +3 more
doaj  

Basal body temperature as a biomarker of reproductive state in ewes: A multi‐method comparison

Australian Veterinary Journal, EarlyView.
This study quantified body temperature dynamics throughout reproductive stages in crossbred ewes based on complementary monitoring techniques. Five ewes from a semi‐extensive farming system were included in two sub‐trials: animals were first assessed in the prepubertal stage and, subsequently, an oestrous cycle was induced by intravaginal progesterone ...
E Pérez‐García, J Nieto de la Losa, JA Abecia, J Plaza, C Palacios Riocerezo   +4 more
wiley   +1 more source