Results 91 to 100 of about 487,985 (362)

Connecting Droplet Adhesion with Sperm Kinematics: A New Paradigm in Sperm Quality Monitoring

Advanced Materials Interfaces, EarlyView.
This study demonstrates direct experimental evidence to establish a nonintuitive connection between the motion characteristics of self‐propelled sperm cells and their surface interaction. Simultaneous motion visualization and cantilever‐deflection‐based adhesion characterization reveal that sperm‐cell droplets with higher motility exhibit lower surface
Sudip Shyam, Sirshendu Misra, Veronika Magdanz, Sushanta K Mitra   +3 more
wiley   +1 more source

A noninvasive method for in situ determination of mating success in female American lobsters (Homarus americanus) [PDF]

, 2014
Despite being one of the most productive fisheries in the Northwest Atlantic, much remains unknown about the natural reproductive dynamics of American lobsters.
Clancy, Michael, Dubofsky, Elizabeth A., Goldstein, Jason S., Lavalli, Kari L., Pugh, Tracy L., Watson, Winsor H.   +5 more
core   +4 more sources

KIF2A Upregulates PI3K/AKT Signaling through Polo-like Kinase 1 (PLK1) to Affect the Proliferation and Apoptosis Levels of Eriocheir sinensis Spermatogenic Cells

Biology
E. sinensis is an animal model for studying the reproduction and development of crustaceans. In this study, we knocked down the Es-Kif2a gene by injecting dsRNA into E.
Yan-Shuang Zhao, Ding-Xi Liu, Fu-Qing Tan, Wan-Xi Yang   +3 more
doaj   +1 more source

Relative safety of various spermatogenic stem cell purification methods for application in spermatogenic stem cell transplantation

Stem Cell Research & Therapy, 2019
Background Spermatogonial stem cell (SSC) transplantation technology as a promising option for male fertility preservation has received increasing attention, along with efficient SSC purification technology as a necessary technical support; however, the ...
Jia Tian, Ke Ma, Cheng-bin Pei, Shao-hua Zhang, Xue Li, Yue Zhou, Bei Yan, Hong-yan Wang, Liang-hong Ma   +8 more
doaj   +1 more source

A Survey of Semen Quality Evaluation in Microscopic Videos Using Computer Assisted Sperm Analysis [PDF]

arXiv, 2022
The Computer Assisted Sperm Analysis (CASA) plays a crucial role in male reproductive health diagnosis and Infertility treatment. With the development of the computer industry in recent years, a great of accurate algorithms are proposed. With the assistance of those novel algorithms, it is possible for CASA to achieve a faster and higher quality result.
arxiv  

Multiplexed Bio‐detection on an Interferometric Optical Waveguide Assembly

Advanced Materials Interfaces, EarlyView.
Multiplexed remote bio‐detection is demonstrated through an image conduit composed of 3012 individual cores and coated with interferometric layers. The proof of concept of biodetection is performed through the kinetic monitoring of two complementary DNA strands hybridization paving the way for applications in multiplex in situ biosensing, and ...
Oleksii Bratash, Rémi Courson, Laurent Malaquin, Thierry Leichle, Arnaud Buhot, Loïc Leroy, Elodie Engel   +6 more
wiley   +1 more source

Abnormal Human Sperm Parameters Contribute to Sperm DNA Fragmentation in Men with Varicocele [PDF]

The World Journal of Men's Health, 2018
Purpose: This study was performed to evaluate and compare threshold sperm parameters and sperm DNA fragmentation index (DFI), and further analyzed whether sperm DFI could be predicted from sperm parameters in men with varicocele.
Yong-Seog Park, Sun-Hee Lee, Hye Won Choi, Hyo Serk Lee, Joong Shik Lee, Ju Tae Seo   +5 more
doaj   +1 more source

The Role of Sperm Morphology Standards in the Laboratory Assessment of Bull Fertility in Australia

Frontiers in Veterinary Science, 2021
The lack of standardization in the laboratory assessment of semen questions the reliability of semen analysis, and makes meaningful interpretation of these evaluations impossible.
V.E.A. Perry, V.E.A. Perry, V.E.A. Perry
doaj   +1 more source

Constant enzymatic in situ production of H₂O₂ for an Unspecific Peroxygenase by an L‐amino acid oxidase

Advanced Synthesis &Catalysis, Accepted Article.
Unspecific Peroxygenases have been the subject of a lot of research in the recent past as they offer opportunities for green hydroxylation reactions using hydrogen peroxide (H₂O₂) as donor. A striking problem of UPOs is their low stability against their own co‐substrate H₂O₂.
Simon Last, Tobias Heinks, Niklas Dietz, Simon Koopmeiners, Gabriele Fischer von Mollard, Martin Weissenborn, Jan von Langermann   +6 more
wiley   +1 more source

Impact of sampling time on the detection of mutations in rapidly proliferating tissues using transgenic rodent gene mutation models: A review

Environmental and Molecular Mutagenesis, Volume 63, Issue 8-9, Page 376-388, December 2022., 2022
Abstract The OECD Test Guideline 488 (TG 488) for the Transgenic Rodent Gene Mutation Assay has undergone several revisions to update the recommended design for studying mutations in somatic tissues and male germ cells. The recently revised TG recommends a single sampling time of 28 days following 28 days of exposure (i.e., 28 + 28 days) for all ...
George R. Douglas, Carol Beevers, Bhaskar Gollapudi, Zena Keig‐Shevlin, David Kirkland, Jason M. O'Brien, Jan van Benthem, Carole L. Yauk, Robert R. Young, Francesco Marchetti   +9 more
wiley   +1 more source