Results 121 to 130 of about 104,321 (292)

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

Transposable elements acquire time- and sex-specific transcriptional and epigenetic signatures along mouse fetal gonad development

open access: yesFrontiers in Cell and Developmental Biology
Gonadal sex determination in mice is a complex and dynamic process, which is crucial for the development of functional reproductive organs. The expression of genes involved in this process is regulated by a variety of genetic and epigenetic mechanisms ...
Isabelle Stévant   +3 more
doaj   +1 more source

Comparison of some traits of economic importance in tilapias (Orechromis niloticus and Sarotherodon galilaeus) with particular reference to their culture in Ghana [PDF]

open access: yes, 2005
This study was conducted to determine which of the two major tilapia species in freshwater capture fisheries in Ghana, Oreochromis niloticus or Sarotherodon galilaeus, is more suitable for breed improvement and pond culture.
Attipoe, F.Y.K.   +2 more
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

Measurement and Analysis of Gonadal Irradiation Dose During Singe-shot X-ray Exposure of Both Lower Limbs

open access: yesCT Lilun yu yingyong yanjiu
Objective: To investigate the relationship between entrance surface dose (ESD) of gonads and physiological parameters such as sex, age, height, and weight in digital X-ray exposure of both lower limbs and to explore the feasibility of full-width long ...
Ce WANG   +7 more
doaj   +1 more source

Reproductive biology of Orechromis niloticus (L.) (Pisces: Cichlidae) in the Nyanza Gulf of Lake Victoria [PDF]

open access: yes, 1999
Fish samples were collected using seine and trawl nets in Nyanza Gulf, Lake Victoria (Kenya) in order to study the reproductive and gonadal patterns of Oreochromis niloticus; samples were collected from June 1998 to February 1999.
Ojuok, J.E.
core  

SPARK: A webserver for comprehensive search and analysis of testicular single‐cell transcriptomic data covering full lifecycle and pathology

open access: yesiMetaOmics, EarlyView.
SPARK is an interactive platform hosting 189,232 human testicular single‐cell transcriptomes across normal and infertile conditions. It enables automated, code‐free analysis and visualization, providing a powerful resource to explore cellular and molecular dynamics in male reproduction and infertility.
Lina Cui   +9 more
wiley   +1 more source

Pacific Hagfish, Eptatretus stouti, and Black Hagfish, E. deani: The Oregon Fishery and Port Sampling Observations, 1988-92 [PDF]

open access: yes, 1993
In 1988, the Oregon Department of Fish and Wildlife began sampling and monitoring the development of a new fishery for Pacific hagfish, Eptatretus stouti, and black hagfish, E. deani.
Barss, William H.
core  

De Novo Assembly, Characterization and Comparative Transcriptome Analysis of the Mature Gonads in Megalobrama terminalis

open access: yesAnimals
Megalobrama terminalis is a significant aquatic fish in South China, renowned for its tasty meat. Nonetheless, related studies are deficient concerning the gonadal development of M. terminalis.
Yicheng Zhou   +9 more
doaj   +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

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