Results 141 to 150 of about 448,134 (326)

Inconsistent Transcriptomic Responses to Hexabromocyclododecane in Japanese Quail: A Comparative Analysis of Results From Four Different Study Designs

open access: yesEnvironmental Toxicology and Chemistry, EarlyView.
Abstract Efforts to use transcriptomics for toxicity testing have classically relied on the assumption that chemicals consistently produce characteristic transcriptomic signatures that are reflective of their mechanism of action. However, the degree to which transcriptomic responses are conserved across different test methodologies has seldom been ...
Paul Béziers   +10 more
wiley   +1 more source

Projected Warming of the Southern Ocean Disrupts Embryonic Development and Hatch Timing in Antarctic Fish

open access: yesGlobal Change Biology Communications, EarlyView.
Embryos are particularly sensitive to thermal challenge. Antarctic fish embryos raised at projected Southern Ocean temperatures hatch during the winter, have a high incidence of morphological abnormalities, have shorter body lengths, and express genes indicative of cellular stress.
Margaret Streeter   +6 more
wiley   +1 more source

Reproductive biology of a population of Gymnotus aff.carapo (Teleostei: Gymnotidae) from southern Brazil

open access: yesNeotropical Ichthyology
The reproductive period and its relation with somatic and abiotic factors, the relative and absolute fecundity, spawning type, length of first maturation and sex ratio is describe for Gymnotus aff.carapo from a small lake at Itapuã State Park, Rio Grande
Diego de Paula Cognato   +1 more
doaj   +1 more source

Efeito da maturação gonadal sobre a energia dos músculos de duas espécies de piranhas do reservatório do rio Manso, Estado de Mato Grosso = Gonadal maturation effect on muscular energy in two species of piranhas (Serrasalmus marginatus and S. maculatus) from rio Manso reservoir, Mato Grosso State

open access: yesActa Scientiarum: Biological Sciences, 2006
Com o intuito de investigar a alocação de energia e a correlação entre esta e o fator de condição (K) de duas espécies de piranhas, Serrasalmus marginatus e S.
Marília Hauser dos Santos   +2 more
doaj  

Neuroendocrine mechanisms in relation to control of maturation in cultivable teleost fishes [PDF]

open access: yes, 1989
Reproductive processes are by no means fully impaired in captivity. The progressive development of the gonads -remains, in general, inhibited upto the final stages of gamete maturation, and it is only at the point of gamete release that the sequence is ...
Diwan, A D
core  

Effect of cortisol on bovine oocytes maturation and further embryonic development after in vitro fertilization [PDF]

open access: yes, 2018
Dissertação de Mestrado, Engenharia Zootécnica, 07 de dezembro de 2018, Universidade dos Açores.A maturação meiótica dos ovócitos e o posterior desenvolvimento embrionário após a fertilização são importantes requisitos fisiológicos para a sobrevivência ...
Mahdy, Aya Khaled Hassan
core  

The mitochondrial DNA copy number and ovary‐related reproductive disorders: A bidirectional two‐sample Mendelian randomization study

open access: yesInternational Journal of Gynecology &Obstetrics, Volume 169, Issue 1, Page 112-120, April 2025.
Abstract Objective In the present study, a bidirectional two‐sample Mendelian randomization approach was utilized to explore potential causal relationships between mitochondrial DNA copy number (mtDNA‐CN) and ovary‐related reproductive disorders (ORRDs), including ovarian dysfunction, ovarian cyst, polycystic ovary syndrome (PCOS), premature ovarian ...
Ke Peng   +4 more
wiley   +1 more source

Organoids and organ‐on‐a‐chip models for investigating the pathophysiology of the human reproductive system

open access: yesInterdisciplinary Medicine, EarlyView.
Organoids and organ‐on‐a‐chips are advancing reproductive system research. In the female reproductive system, applications include cancer organoid models, placental chips, and hormone simulation models. For the male reproductive system, research focuses on drug resistance mechanisms, co‐culture platforms, and infertility studies. These refined in vitro
Hongqi Zhang   +6 more
wiley   +1 more source

LIN‐24 as a Molecular Switch: Dual Cytotoxic and Cytoprotective Roles of an Aerolysin‐Like Protein in C. elegans

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT LIN‐24, an aerolysin‐like pore‐forming protein in Caenorhabditis elegans, exemplifies how ancient cytolytic mechanisms have evolved into regulated cellular processes. Initially identified for inducing nonapoptotic, engulfment‐dependent cell death in vulval precursor cells, LIN‐24 has emerged as a multifunctional regulator of metabolism, stress
Sharoen Yu Ming Lim
wiley   +1 more source

Gametogenic Development of a Grooved Carpet Shell Clam (Ruditapes decussatus, Linnaeus, 1758) Population in the Baldaio Lagoon (N.W. Spain) Amidst Climate Change

open access: yesAnimals
The impact of climate change on marine bivalves, particularly on their reproductive processes, is a current issue of concern. The aim of this study was to investigate how seawater temperatures influenced the gonadal development and overall condition of ...
Diana Llamazares   +4 more
doaj   +1 more source

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