Results 31 to 40 of about 133,217 (307)

Species difference in the expression of Fas and Fas ligand in mature mammalian spermatozoa

Czech Journal of Animal Science, 2017
Although it has been proposed that the Fas and Fas ligand (FasL) may protect ejaculated spermatozoa against apoptosis induced by lipoperoxidative damage and against lymphocytes present in the female genital tract, studies reported conflicting results on ...
Youwei Li, Mingju Sun, Jiang Zhu, Guangzhong Jiao, Juan Lin, Haibo Dong, Jinghe Tan, Jiabo Zhou   +7 more
doaj   +1 more source

CD33 as a leukocyte-associated marker expressed on human spermatozoa

BMC Research Notes, 2023
Objective Sialic acid-binding immunoglobulin-type lectins (Siglecs) are commonly present on immune cells and often mediate cell-to-cell interactions and signaling. Studies have shown the presence of Siglecs 1, 2, 5, 6, 10 and 14 on human spermatozoa.
Nasrin Sereshki, Mitra Rafiee, Razieh Alipour, Kourosh Rahimyan, David Wilkinson   +4 more
doaj   +1 more source

Collection and freezing of equine epididymal spermatozoa [PDF]

, 2014
The epididymis and vas deferens store an important number of fertile spermatozoa called the extragonadal sperm reserves. These stored spermatozoa can be collected in an ultimate attempt to preserve viable spermatozoa of a critically ill or dying stallion.
Govaere, Jan, Hoogewijs, Maarten, Leemans, Bart, Roels, Kim, Van Soom, Ann, Ververs, Cyrillus   +5 more
core   +1 more source

Human sperm ion channel (dys)function:implications for fertilization [PDF]

, 2019
BACKGROUND: Intensive research on sperm ion channels has identified members of several ion channel families in both mouse and human sperm. Gene knock-out studies have unequivocally demonstrated the importance of the calcium and potassium conductances in ...
Barratt, Christopher L. R., Brown, Sean G., Martins da Silva, Sarah J., Publicover, Stephen J.   +3 more
core   +4 more sources

Directed Navigation of Magnetotactic Bacteria via Magnetotaxis in a 3D Vasculature‐On‐A‐Chip

Advanced Materials Technologies, EarlyView.
A perfusable vascular network is developed to investigate MTB at the single‐microorganism level. MTB is demonstrated to successfully align and navigate along the magnetic field inside the microvessels. Abstract Magnetotactic bacteria (MTB), inherently motile and self‐powered, are promising biorobotic candidates for targeted anti‐cancer drug delivery ...
Brianna Bradley, Yuji Nashimoto, Aldo Gonzalez‐Lopez, Takeshi Hori, Hirokazu Kaji, Peter L. Davies, Carlos Escobedo   +6 more
wiley   +1 more source

Multimodal Actuation and Environment Adaptive Strategies of Bio‐Inspired Micro/Nanorobots in Precision Medicine

Advanced Robotics Research, EarlyView.
An introduction for multidrive and environment‐adaptive micro/nanorobotics: design and fabrication strategies, intelligent actuation, and their applications. Various intelligent actuation approaches—magnetic, acoustic, optical, chemical, and biological—can be synergistically designed to enhance flexibility and adaptive behavior for precision medicine ...
Aiqing Ma, Han Gong, Jiacheng Ouyang, Liqi Chen, Tianfang Kang, Yiran He, Guojun Huang, Sidi Zheng, Ting Yin, Hong Pan, Lintao Cai   +10 more
wiley   +1 more source

In vitro effect of ferrous sulphate on bovine spermatozoa motility parameters, viability and Annexin V-labeled membrane changes.

PLoS ONE, 2021
The aim of this study was to assess the dose- and time-dependent in vitro effects of ferrous sulphate (FeSO4.7H2O) on the motility parameters, viability, structural and functional activity of bovine spermatozoa.
Zuzana Knazicka, Hana Duranova, Veronika Fialkova, Michal Miskeje, Tomas Jambor, Alexander V Makarevich, Shubhadeep Roychoudhury, Anton Kovacik, Peter Massanyi, Norbert Lukac   +9 more
doaj   +1 more source

In Vitro Fertility of Post-thawed Epididymal Ram Spermatozoa After Storage at 5 °C Before Cryopreservation [PDF]

, 2013
This study addressed the effects of storage duration of epididymides at 5 °C before sperm collection and their fertility after cryopreservation in vitro.
fahrudin, M. (M), Karja, N. W. (N), Setiadi, M. A. (M)   +2 more
core  

Rheotaxis facilitates upstream navigation of mammalian sperm cells [PDF]

, 2014
A major puzzle in biology is how mammalian sperm determine and maintain the correct swimming direction during the various phases of the sexual reproduction process.
Adolphi, Bahat, Brenker, Chengala, Denissenko, Eisenbach, Elgeti, Eschenbach, Fauci, Fauci, Friedrich, Gaffney, Gibbons, Han, Ishijima, Kantsler, Katz, Kaupp, Kunz, Marcos, Marcos, Merviel, Miki, Montenegro-Johnson, Owen, Riffell, Roberts, Rothschild, Smith, Smith, Spehr, Su, Suarez, Talkner, Wilson, Winet, Woolley, Zimmer   +37 more
core   +3 more sources

Spermatozoa: A Historical Perspective.

International journal of fertility & sterility, 2018
ABSTRACT: The 100,000th scientific article on the subject of spermatozoa was recently published. Numerous studies evaluated the characteristics of this important cell that led to tremendous discoveries. Since its first observation and description in 1677, many important characteristics have been described regarding this highly fascinating gamete.
Puerta Suárez, Jenniffer, Cardona Maya, Walter Darío, Du Plessis, Stefan S.   +2 more
openaire   +5 more sources