Results 21 to 30 of about 325,405 (336)

GAMETHOGENESIS OF PACIFIC SALMONS. 1. DEVELOPMENT OF GONAD IN YOUNG CHUM SALMON ONCORHYNCHUS KETA WALBAUM UNDER VARIOUS TEMPERATURE REGIMES

open access: yesИзвестия ТИНРО, 2019
Early stages of gametogenesis in young chum salmon are investigated under various temperature regimes at three fish farms of Sakhalin region and in laboratory conditions.
O. V. Zelennikov
doaj   +1 more source

Effect of the prenatal action of fulvestrant on the ovaries of the offspring of laboratory mice

open access: yesRUDN Journal of Medicine, 2021
Relevance. Fulvestrant is used for the treatment of breast cancer in combination with other drugs. The aim of the study was to determine the effect of the prenatal action of fulvestrant on the ovaries of the offspring of laboratory mice.
Rimma T. Sulaymanova
doaj   +1 more source

The direct response of the gonads to cues of stress in a temperate songbird species is season-dependent. [PDF]

open access: yes, 2013
The gonadotropin releasing hormone (GnRH) system in the hypothalamus is often considered the final point in integration of environmental cues as they pertain to the reproductive axis.
Bentley, George   +2 more
core   +2 more sources

Étude des variations de paramètres anatomiques et endocriniens chez l'anguille européenne (Anguilla anguilla) femelle, sédentaire et d'avalaison : application à la caractérisation du stade argenté

open access: yesKnowledge and Management of Aquatic Ecosystems, 1999
L'argenture est une transformation complexe qui fait passer les anguilles de la phase de croissance juvénile, sédentaire (stade jaune) à la phase de migration d'avalaison (stade argenté), étape initiale de la migration de reproduction océanique.
MARCHELIDON J.   +7 more
doaj   +1 more source

Effect of androgen treatment during foetal and/or neonatal life on ovarian function in prepubertal and adult rats [PDF]

open access: yes, 2012
We investigated the effects of different windows of testosterone propionate (TP) treatment during foetal and neonatal life in female rats to determine whether and when excess androgen exposure would cause disruption of adult reproductive function ...
Abbott   +50 more
core   +3 more sources

The Role of RFamide-Related Peptide-3 in Age-Related Reproductive Decline in Female Rats. [PDF]

open access: yes, 2016
Reproductive senescence, the point in time when females cease to show estrous cyclicity, is associated with endocrine changes in the hypothalamus, pituitary, and gonads. However, the mechanisms triggering this transition are not well understood.
Bentley, George E   +4 more
core   +1 more source

Clinical and structural changes in reproductive organs and endocrine glands of sterile cows [PDF]

open access: yesVeterinary World, 2020
Aim: The study aimed to determine both macroscopic and microscopic changes in the reproductive organs of sterile cows. Materials and Methods: Careful clinical and gynecological examinations (using histological and histochemical methods) of organs of ...
Evgeny Skovorodin   +4 more
doaj   +1 more source

Effector Caspase Dcp-1 and IAP Protein Bruce Regulate Starvation-Induced Autophagy during Drosophila Melanogaster Oogenesis [PDF]

open access: yes, 2008
A complex relationship exists between autophagy and apoptosis, but the regulatory mechanisms underlying their interactions are largely unknown. We conducted a systematic study of Drosophila melanogaster cell death–related genes to determine their ...
Barbosa, Sharon González   +4 more
core   +4 more sources

Perfusion and Ultrasonication Produce a Decellularized Porcine Whole-Ovary Scaffold with a Preserved Microarchitecture

open access: yesCells, 2023
The application of decellularized scaffolds for artificial tissue reconstruction has been an approach with great therapeutic potential in regenerative medicine.
Gustavo Henrique Doná Rodrigues Almeida   +12 more
doaj   +1 more source

Comparison of ovarian cycles of Hungarian riverine fish species representing different spawning strategies [PDF]

open access: yes, 2008
Investigations on the ovarian cycle of fish species that inhabit Hungarian rivers are necessitated by both environmental and economic reasons. The objective of our research was to explore new fundamental knowledge concerning the ovarian cycle of the ...
Baska, Ferenc   +6 more
core   +1 more source

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