Results 201 to 210 of about 68,636 (335)

Chemosensory signalling in human sperm is controlled by Ca2+ influx via CatSper and Ca2+ clearance via plasma membrane Ca2+ ATPases

open access: yesBritish Journal of Pharmacology, Volume 182, Issue 12, Page 2694-2712, June 2025.
Abstract Background and Purpose Loss of function of the sperm‐specific Ca2+ channel CatSper is a common channelopathy that causes male infertility. CatSper controls the intracellular Ca2+ concentration and, thereby, the motility of human sperm. Activation of CatSper by oviductal ligands evokes a transient Ca2+ increase, which entails changes in the ...
Leonie Herrmann   +11 more
wiley   +1 more source

From silence to song: Testosterone triggers extensive transcriptional changes in the female canary HVC

open access: yesJournal of Neuroendocrinology, Volume 37, Issue 6, June 2025.
Abstract Seasonal song production in canaries is influenced by gonadal hormones, but the molecular mechanisms underlying testosterone‐induced song development in adult female canaries, which rarely sing naturally, remain poorly understood. We explored testosterone‐induced song development in adult female canaries by comparing gene regulatory networks ...
Meng‐Ching Ko   +5 more
wiley   +1 more source

Histochemical structure and immunolocalisation of the hyaluronan system in the dromedary oviduct [PDF]

open access: yes, 2015
Abdel-Aleem A. El-Saba   +50 more
core   +1 more source

Evidence of Holarctic distribution: common frog Rana temporaria eggs in Fennoscandia host photosymbiotic green algae (Oophila sp.)

open access: yesOikos, Volume 2025, Issue 6, June 2025.
Symbiosis is a commonly occurring phenomenon, with most plants and animals being holobionts, comprising of a host and its corresponding symbionts. It is, however, less common to have a symbiont only under a specific life stage and even more so between a photosynthesizing organism and a vertebrate animal.
Pontus F. Eriksson   +4 more
wiley   +1 more source

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