Results 61 to 70 of about 458,190 (303)

Non-targeted proteomic analysis of Asian elephant (Elephas maximus) seminal plasma using an in-solution digestion technique and liquid chromatography tandem-mass spectrometry

Frontiers in Veterinary Science, 2023
Seminal plasma proteins have recently been reported to play a significant role as valuable materials for understanding male reproductive biology, identifying causes of fertility problems, and developing reproductive biomarkers.
Podjana Wattananit, Yodying Yingchutrakul, Kornchai Kornkaewrat, Sittidet Mahasawangkul, Sittiruk Roytrakul, Anuchai Pinyopummin   +5 more
doaj   +1 more source

Effect of seminal plasma removal, washing solutions, and centrifugation regimes on boer goat semen cryopreservation [PDF]

, 2011
Three experiments were carried out to improve semen quality during cryopreservation process. Total motility, forward motility, acrosome integrity, live spermatozoa, and normal spermatozoa were measured as semen quality.
Abu Bakar @ Zakaria, Md Zuki, Bukar, Muhammad Modu, Goriman Khan, Mohd Azam Khan, Haron, Abd Wahid, Kyaw, Than, San, Maung Maung, Sarsaifi, Kazhal, Soe, Win Naing, Thein, Myint, Yusoff, Rosnina   +9 more
core  

Postcopulatory sexual selection [PDF]

, 2002
The female reproductive tract is where competition between the sperm of different males takes place, aided and abetted by the female herself. Intense postcopulatory sexual selection fosters inter-sexual conflict and drives rapid evolutionary change to ...
A Civetta, A Singson, A Singson, AB Carvalho, AJ Bateman, AK Chippindale, AK Chippindale, AP Møller, AP Møller, B Hellriegel, B Holland, B Kempenaers, BC Sheldon, BC Sheldon, BT Preston, C Darwin, CW LaMunyon, D Carré, D Childress, D Haig, D Hosken, D Pfaff, D Vacquier, D Yamamoto, DA Roff, DB Lank, DC Presgraves, DC Shakes, DJ Begun, DJ Hosken, DM Rand, DW Coltman, E Ottaviano, E Ruiz-Pesini, EC Metz, ED Ketterson, EH Nicholls, EJA Cunningham, FD Karim, FM Hunter, FM Hunter, G Arnqvist, G Arnqvist, GA Parker, GA Parker, GA Parker, GA Parker, GA Parker, GA Parker, H Montell, HDM Moore, IM Matthews, J Nance, JB Wolf, JDD Bishop, JHJ Van der Werf, JK Waage, JM Cheverud, JM Martin-Villa, JS Takahashi, JV Briskie, JV Briskie, K Uchida, KA Hughes, L Andersson, L Delph, L Keller, LD Hurst, LW Simmons, LW Simmons, M Andersson, M Edvardsson, M Lynch, M Ridley, MK Dahle, N Wilson, P David, P Jivoff, P Stockely, P Stockley, P Ward, P Ward, PA Cook, PS Chen, R Lande, R Thornhill, RD Catalano, RL Smith, RL Smith, RL Trivers, RR Baker, RR Snook, RR Snook, RR Warner, S Gavrilets, S Palumbi, S Pitnick, S Pitnick, S Pitnick, S Stearns, SA Frank, SM Shuster, SM Shuster, SW L' Hernault, T Chapman, T Chapman, T Chapman, T Pizzari, T Pizzari, T Prout, T Prout, T Tregenza, T Tregenza, TFC Mackay, TH Clutton-Brock, TM Panhuis, TR Birkhead, TR Birkhead, TR Birkhead, TR Birkhead, TR Birkhead, TR Birkhead, TR Halliday, UW Huck, W Swanson, WG Eberhard, WJ Swanson, WJ Swanson, WJ Swanson, WJ Swanson, WR Rice, WR Rice, WR Rice   +132 more
core   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source

Association of urinary and seminal plasma vanadium concentrations with semen quality: A repeated-measures study of 1135 healthy men

Ecotoxicology and Environmental Safety
Although animal studies have shown the reproductive toxicity of vanadium, less is known about its effects on semen quality in humans. Among 1135 healthy men who were screened as potential semen donors, we investigated the relationships of semen quality ...
Heng-Gui Chen, Ping Wu, Xiao-Feng Zheng, Qing-Ling Su, Qiao-Fen Lin, Bin Sun, Ying-Jun Chen, Tian-Qing Meng, Cheng-Liang Xiong, An Pan, Yi-Xin Wang, Weimin Ye   +11 more
doaj   +1 more source

Quality of seminal fluids varies with type of stimulus at ejaculation [PDF]

Scientific Reports, 2017
AbstractThe theory of ejaculate economics was mainly built around different sperm competition scenarios but also predicts that investments into ejaculates depend on female fecundity. Previous tests of this prediction focused on invertebrates and lower vertebrate, and on species with high female reproductive potential.
Jeannerat, Elise, Janett, F., Sieme, H., Wedekind, C., Burger, Dominik   +4 more
openaire   +4 more sources

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

Large Differences in Small RNA Composition Between Human Biofluids. [PDF]

, 2018
Extracellular microRNAs (miRNAs) and other small RNAs are implicated in cellular communication and may be useful as disease biomarkers. We systematically compared small RNAs in 12 human biofluid types using RNA sequencing (RNA-seq).
Barczak, Andrea J, Bhakta, Nirav R, Cakmak, Hakan, Erle, David J, Fisher, Susan, Godoy, Paula M, MacKenzie, Tippi C, Patel, Tushar, Price, Richard W, Smith, James F, Woodruff, Prescott G   +10 more
core  

Sperm death and dumping in Drosophila [PDF]

, 2004
Mating with more than one male is the norm for females of many species. In addition to generating competition between the ejaculates of different males, multiple mating may allow females to bias sperm use.
A Civetta, A Civetta, A Cordoba-Aguilar, AG Clark, AS Gilchrist, AS Gilchrist, B Jenzer, BI Arthur, CSP Price, D Scott, FM Hunter, GA Parker, GJ Lefevre, GT Miller, H Alonzo-Pimentel, HDM Moore, JK DeVries, L Xue, LG Harshman, LW Simmons, LW Simmons, M Otronen, MH Gromko, MH Gromko, MR Wheeler, S Pitnick, T Pizzari, TR Birkhead, WB Heed, WG Eberhard   +29 more
core   +1 more source

Relationship between Seminal Plasma Trace Elements and Sperm Quality

Ecotoxicology and Environmental Safety
Male fertility has declined recently, mainly due to reduced sperm quality. While common factors contribute to this issue, they do not adequately explain all cases. Environmental pollutants, especially trace elements, significantly affect sperm quality, but the link between trace element exposure in seminal plasma and male fertility decline is still ...
Yujie Li, Xiaowen Liu, Zewei Yu, Yangying Xu, Wei Xue, Xin Du, Guanghui Yuan, Xiaoxiao Wang, Yingxue Liu, Duan Li, Cuifang Hao   +10 more
openaire   +3 more sources