Results 261 to 270 of about 1,568,056 (388)

cba‐miR‐222‐3p involved in photoperiod‐induced apoptosis in testes of striped hamsters by targeting TRAF7

Integrative Zoology, EarlyView.
The cba‐miR‐222‐3p affects the MAPK signaling pathway by targeting TRAF7, thereby participating in the induction of apoptosis in the testes of striped hamsters under different photoperiods. Abstract The role of miRNAs in the regulation of seasonal reproduction in rodents, particularly in relation to photoperiod changes, is still poorly understood ...
Shuo WANG, Jinhui XU, Xingchen WANG, Mingdi WANG, Huiliang XUE, Ming WU, Chao FAN, Lei CHEN, Laixiang XU   +8 more
wiley   +1 more source

Sperm Transfer Under Behavioral and Morphological Constraints in the Orb‐Web Spider Genus Argiope

Integrative Zoology, EarlyView.
The polygamous mating system of the orb‐web spider genus Argiope provides a model to study the evolution of sperm transfer under morphological and behavioral constraints. This helps us to understand how male and female behavioral and morphological reproductive traits influence sperm transfer.
Chathuranga Dharmarathne, Donald J. McLean, Peter Michalik, M. E. Herberstein   +3 more
wiley   +1 more source

How Much of the Decline in Sperm Counts Can Be Explained by Relaxed Reproductive Selection?

, 2002
Rémy Slama, Henri Léridon
openalex   +1 more source

Correlation of oxidation reduction potential and total motile sperm count: its utility in the evaluation of male fertility potential. [PDF]

Asian J Androl, 2020
Majzoub A, Arafa M, El Ansari W, Mahdi M, Agarwal A, Al-Said S, Elbardisi H.   +6 more
europepmc   +1 more source

Does Smoking During Pregnancy Affect Sons’ Sperm Counts?

, 2003
Lone Storgaard, Jens Peter Bonde, Erik Ernst, Marcello Spanò, Claus Yding Andersen, Morten Frydenberg, Jørn Olsen   +6 more
openalex   +1 more source

Observation Bias in Metabarcoding

Molecular Ecology Resources, EarlyView.
ABSTRACT DNA metabarcoding is subject to observation bias associated with PCR and sequencing, which can result in observed read proportions differing from actual species proportions in the DNA extract. Here, we amplify and sequence a mock community of known composition containing marine fishes and cetaceans using four different primer sets and a ...
Megan R. Shaffer, Elizabeth Andruszkiewicz Allan, Amy M. Van Cise, Kim M. Parsons, Andrew Olaf Shelton, Ryan P. Kelly   +5 more
wiley   +1 more source

Men born in the region of Leipzig (Saxony, Germany) between 1960 and 1970 showed a significantly decreased sperm count (examination of 3432 individuals)

, 2003
Uwe Paasch, C. Thieme, H.‐J. Glander
openalex   +1 more source

A low total motile sperm count in donor sperm obtained from commercial banks does not affect pregnancy rates from intrauterine insemination. [PDF]

Eur J Obstet Gynecol Reprod Biol X
Hochberg A, Dahan MH, Dinh T, Buckett W, Ruiter-Ligeti J.   +4 more
europepmc   +1 more source

A computational framework to characterize and compare the tonal repertoires of toothed whales

Methods in Ecology and Evolution, EarlyView.
Abstract Toothed whales, despite being one of the most acoustically specialized lineages of vertebrates, lack detailed vocal repertoire characterizations comparable to those of songbirds and primates. Current descriptions often lack standardization, limiting interspecies and intraspecies comparisons critical for understanding the contribution of ...
Maia Austin, Julie N. Oswald, Manali Rege‐Colt, Emma Gagne, Eric Angel Ramos, Joëlle De Weerdt, Nicola Ransome, Laura J. May‐Collado   +7 more
wiley   +1 more source

Nicotinamide Riboside Supplementation Alleviates Testicular Aging Induced by Disruption of Qprt‐Dependent NAD+ De Novo Synthesis in Mice

Aging Cell, EarlyView.
In Qprt‐deficient mice, testicular NAD+ levels decline accelerated with age, leading to mitochondrial dysfunction, disrupted DSB repair, impaired meiotic sex chromosome inactivation, and germ cell loss. Nicotinamide riboside (NR) supplementation restores NAD+ levels and alleviates these defects, highlighting the importance of NAD+ de novo synthesis in ...
Yining Xu, Huan Wang, Hui Li, Chenlu Wei, Zhenye Zhu, Yanqing Zhao, Jiajia Zhu, Min Lei, Yingpu Sun, Qingling Yang   +9 more
wiley   +1 more source