Results 191 to 200 of about 2,405,716 (326)

Decline in sperm count and motility in young adult men from 2003 to 2013: observations from a U.S. sperm bank

Andrology, 2016
G. M. Centola, A. Blanchard, J. Demick, Shu-Feng Li, Michael L. Eisenberg   +4 more
semanticscholar   +1 more source

Unravelling Evolutionary Dynamics of Female Sexual Cannibalism and Male Reproductive Strategies in Spiders

Integrative Zoology, EarlyView.
Sexual cannibalism (SC), where one mating partner consumes the other in the context of mating, is especially prevalent among spiders. However, the evolution of SC in spiders is still not fully understood. We review key hypotheses for SC and explore how female‐initiated SC has driven the evolution of various male counter‐adaptations to mitigate its ...
Simona Kralj‐Fišer, Franco Cargnelutti, Daiqin Li, Matjaž Kuntner   +3 more
wiley   +1 more source

Wildfire smoke exposure is associated with decreased sperm concentration and total motile sperm count. [PDF]

Fertil Steril
Lindell LX, Holt SK, Petersen E, Gunaje N, Amighi A, Haack A, Bui A, Nasseri R, Crisostomo-Wynne T, Karr CJ, Muller CH, Walsh TJ, Nicholson TM.   +12 more
europepmc   +1 more source

Calves' management conditions affect sperm count in adult bulls. [PDF]

Acta Vet Scand, 2020
Snoj T, Blažič K, Šehić N, Vake T, Majdič G.   +4 more
europepmc   +1 more source

Total motile sperm count: a better indicator for the severity of male factor infertility than the WHO sperm classification system.

Human Reproduction, 2015
J. A. M. Hamilton, M. Cissen, M. Brandes, J. Smeenk, J. de Bruin, J. A. Kremer, W. Nelen, C. J. C. M. Hamilton   +7 more
semanticscholar   +1 more source

Genome Expansion of ZPB1(a) and ZPC1(a) in Basal Species or Liver Expression of ZPB1a and ZPC1aa in Advanced Species, Two Different Strategies to Ensure Sufficient ZP Synthesis in Teleosts

Integrative Zoology, EarlyView.
We found that teleosts employed two different strategies to ensure sufficient ZP (zona pellucida) synthesis: expansion of ZPB1(a) and ZPC1(a) in basal species or liver expression of ZPB1a and ZPC1aa in advanced species. The N‐terminus of expanded ZPB1(a) or ZPC1(a) and liver‐expressed ZPB1a contains repeated units or low‐complexity regions to form ...
Tian Gao, Suying Ma, Shiyi Zhang, Fan Bai, Lingyao Gan, Wenjing Tao, Feilong Wang, Deshou Wang, Lina Sun   +8 more
wiley   +1 more source

Impact of total motile sperm count on ICSI outcomes in male factor infertility: A retrospective cohort study. [PDF]

Medicine (Baltimore)
Aydoğan HÖ, Dilbaz S, Kahyaoğlu İ, Kaplanoğlu İ, Engin Üstün Y.   +4 more
europepmc   +1 more source

Effects of leptin on sperm count and morphology in Sprague‐Dawley rats and their reversibility following a 6‐week recovery period

Andrologia, 2015
F. A. Almabhouh, K. Osman, I. Fatimah, G. Sergey, J. Gnanou, H. Singh   +5 more
semanticscholar   +1 more source

Effects of cosmos caudatus on sperm quality of mice, mus musculus

, 2015
This study was designed to analyse the effects of Cosmos caudatus on sperm quality of mice, Mus musculus. The daily intake of Cosmos caudatus was evaluated in determining its effects on male fertility. Four different concentrations of the crude ethanolic
Nurul Nadiah Zainal Abidin
core  

Sensory Biology of the Franciscana (Pontoporia blainvillei, Pontoporiidae, Cetartiodactyla): Ontogenetic Modifications of Vibrissae and Vibrissal Crypts

Integrative Zoology, EarlyView.
The transition of cetaceans from a terrestrial to an aquatic environment involved a crucial sensory adaptation to environments with limited visibility. Vibrissae, important mechanoreceptors, undergo an ontogenetic transformation in odontocetes. This research describes the histomorphology of vibrissae and crypts at different developmental stages ...
Cecilia Mariana Krmpotic, Cleopatra Mara Loza, Alejo Carlos Scarano, Pedro Fernando Andrés‐Laube, Francisco Acuña, Juan Pablo Loureiro, Carolina Natalia Zanuzzi, Nicolás Nahuel Castro, María Teresa Pombo, Lorenzo von Fersen, Claudio Gustavo Barbeito   +10 more
wiley   +1 more source