Results 111 to 120 of about 474,034 (395)

Progesterone significantly enhances the mobility of boar spermatozoa [PDF]

open access: yes, 2013
Progesterone released from the cumulus cells of the oocyte causes a number of physiological responses in human sperm cells including hyperactivation, acrosome reaction and chemotaxis. We employed a validated sperm mobility assay, which involves measuring
Adya, Ashok K.   +6 more
core   +3 more sources

Paternal Caffeine Exposure Programs Offspring Stress Vulnerability via Sperm Dlk1‐Dio3 Imprinting‐Directed Remodeling of a Novel Neural Circuit

open access: yesAdvanced Science, EarlyView.
The study elucidates that paternal preconception stress can drive offspring hyperresponsivity of the stress system via hypomethylation of a specific DNA region in sperm. This key link is confirmed in a cohort of prospective fathers: the epigenetic alteration is associated with elevated stress hormone levels.
Mengxi Lu   +10 more
wiley   +1 more source

Analysis of epididymal sperm from Korean native bull (Hanwoo) aged at 8 and 15 months before freezing and after thawing

open access: yesJournal of Animal Reproduction and Biotechnology, 2016
The recovery of epididymal sperm in animals is considered as one of the important tools to preserve high value or endangered species. However, there are no appropriate castrating indicators such as months of age in bull, sperm morphology, and motility ...
Sung-Sik Kang   +11 more
doaj   +1 more source

Testicular cancer and sperm DNA damage: short- and long-term effects of antineoplastic treatment [PDF]

open access: yes, 2015
The aim of this study was to investigate sperm DNA damage induced by chemo- and radiotherapy in patients with testicular cancer to provide data on the extent and persistence of nuclear damage that might affect individual reproductive potential.
F. Rizzo   +7 more
core   +1 more source

Design, Control, and Clinical Applications of Magnetic Actuation Systems: Challenges and Opportunities

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This review aims to provide a broad understanding for interdisciplinary researchers in engineering and clinical applications. It addresses the development and control of magnetic actuation systems (MASs) in clinical surgeries and their revolutionary effects in multiple clinical applications.
Yingxin Huo   +3 more
wiley   +1 more source

Quercetin Protects Goat Sperm Motility by Inhibiting Neutrophil Extracellular Traps and Maintaining Plasma Membrane and Acrosome Integrity

open access: yesVeterinary Sciences
Enhancing or protecting sperm motility has always been a pivotal approach to improving the ewe pregnancy rate. Sperm motility is highly susceptible to the immune status of the reproductive tract.
Zhengkai Wei   +8 more
doaj   +1 more source

Effects of Diethylstilbestrol Administration on Sperm Motility and Reproductive Function in Male Japanese Quail (Coturnix japonica)

open access: yesThe Journal of Poultry Science, 2002
The present study was undertaken to evaluating the effects of diethylstilbestrol (DES) on sperm motility and reproductive function in male Japanese quail. To do so, we have identified the method that ensures maximal quail sperm motility, i.e.
Teruo Maeda, Yukinori Yoshimura
doaj   +1 more source

Use of endocrine and immune responses as predictors of bull sperm motility [PDF]

open access: yes, 2015
Research has shown that peripheral blood cell populations change in response to an immune challenge, and hormone concentrations directly affect sperm characteristics.
Looper, Michael   +3 more
core   +2 more sources

Depolarization of sperm membrane potential is a common feature of men with subfertility and is associated with low fertilization rate at IVF [PDF]

open access: yes, 2016
STUDY QUESTION. Are significant abnormalities in outward (K+) conductance and resting membrane potential (Vm) present in the spermatozoa of patients undertaking IVF and ICSI and if so, what is their functional effect on fertilization success?
Barratt, Christopher L. R.   +9 more
core   +6 more sources

Major regulatory mechanisms involved in sperm motility

open access: yesAsian Journal of Andrology, 2015
The genetic bases and molecular mechanisms involved in the assembly and function of the flagellum components as well as in the regulation of the flagellar movement are not fully understood, especially in humans.
R. Pereira, R. Sá, A. Barros, M. Sousa
semanticscholar   +1 more source

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