Results 151 to 160 of about 487,985 (362)
Cellular geometry controls the efficiency of motile sperm aggregates [PDF]
arXiv, 2018 Teams of cooperating sperm have been found across several vertebrate and invertebrate species, ranging from sperm pairs to massive aggregates containing hundreds of cells. Although the biochemical mechanisms involved in the aggregation process are still unclear, it was found that aggregation can enhance the mobility of the cells, thus offering an ...
arxiv
Animal Models and Experimental Medicine, EarlyView.The electrophysiological change in neurons might contribute to the cognitive and emotional changes during pregnancy. Abstract Background Pregnancy affects learning and memory in women. Thus, to investigate the effects of pregnancy, the authors examined the brain electrophysiology of pregnant mice.
Xuefan Bin, Huijuan Luo
wiley +1 more source
Insect‐specific viruses used in biocontrol of mosquito‐borne diseases
Interdisciplinary Medicine, Volume 1, Issue 1, January 2023., 2023 Insect‐specific RNA viruses (ISRVs) are involved in a wide range of families including Flaviviridae, Bunyaviridae, Negeviruses, Togaviridae, Reoviridae, Mesoniviridae, and Rhabdoviridae, which cannot infect vertebrates, including humans. However, ISRVs can infect and replicate in mosquitoes, interfering with the replication of mosquito‐borne viruses ...
Jiating Chen +2 more
wiley +1 more source
Potassium ion influx and Na+,K+-ATPase activity are required for the hamster sperm acrosome reaction. [PDF]
, 1981 The role of a K+ ion influx and Na+,K+-ATPase activity in the hamster sperm acrosome reaction (AR) was examined, using a range of concentrations of K+,K+ ionophores and a Na+,K+-ATPase inhibitor.
Meizel, S, Mrsny, RJ
core
Microcystin leucine arginine induces human sperm damage: Involvement of the Ca2+/CaMKKβ/AMPK pathway
Ecotoxicology and Environmental Safety, 2023 As a common pollutant in the water environment, microcystin leucine arginine (MC-LR) can enter semen and damage the sperm in animals. However, the mechanism by which MC-LR damages human sperm is unclear.
Xing Guo +7 more
doaj
BMC Evolutionary Biology, 2018 Background Sexual selection continues after copulation via either sperm competition or cryptic female choice, and favors sperm traits that maximize sperm competitiveness.
Alfonso Rojas Mora +3 more
doaj +1 more source
Sperm DNA and detection of DNA fragmentations in sperm [PDF]
Türk Üroloji Dergisi/Turkish Journal of Urology, 2018 The questionable effectiveness of routine sperm parameters in determining male factor infertility problems and increasing the success rates of assisted reproductive techniques have led to the investigation of more detailed sperm parameters that could affect the male fertility and reproduction.
openaire +3 more sources
Use of endocrine and immune responses as predictors of bull sperm motility [PDF]
, 2015 Research has shown that peripheral blood cell populations change in response to an immune challenge, and hormone concentrations directly affect sperm characteristics.
Looper, Michael +3 more
core +2 more sources
Sperm Depletion and Mating Behavior in the Parasitoid Wasp \u3ci\u3eSpalangia Cameroni\u3c/i\u3e (Hymenoptera: Pteromalidae) [PDF]
, 2018 Mating behavior was examined in the parasitoid wasp Spalangia cameroni. Males attempted copulation with both virgins and already mated females. Males attempted copulation regardless of whether they still had sperm. Already mated females rejected attempts
King, Bethia H
core +1 more source