Results 1 to 10 of about 492,766 (213)

Post-Thaw Sperm Recovery Rates; A Retrospective Study

open access: yesFertility & Reproduction, 2022
Background: Cryopreservation is currently the only fertility preservation option available to patients undergoing gonadotoxic treatment. Much research in the field focusses on techniques, media and equipment employed to cryopreserve cells, and ...
Pui Ying LEUNG   +4 more
doaj   +1 more source

Validation of sORP, a Measure of Oxidative Stress, in Australian Population

open access: yesFertility & Reproduction, 2022
Background: Excessive reactive oxygen species are normally eliminated by seminal plasma free radical antioxidant scavengers and enzymes. Assessing the oxidation reduction potential of seminal fluid (mV/million sperm/mL) enables the detection of an ...
Yu-Cih SHIH   +4 more
doaj   +1 more source

External quality assessment scheme for sperm DNA fragmentation: a pilot study in China

open access: yesBasic and Clinical Andrology, 2023
Background The aim of this article is to establish an external quality assessment (EQA) scheme for sperm Deoxyribonucleic acid (DNA) fragmentation (SDF) detection, and to assess the feasibility of the scheme.
Yan Zheng   +9 more
doaj   +1 more source

Follicle-stimulating hormone signaling in Sertoli cells: a licence to the early stages of spermatogenesis

open access: yesReproductive Biology and Endocrinology, 2022
Follicle-stimulating hormone signaling is essential for the initiation and early stages of spermatogenesis. Follicle-stimulating hormone receptor is exclusively expressed in Sertoli cells.
Jia-Ming Wang   +3 more
doaj   +1 more source

Bladder Neck Obstruction: Experience and Management in a Sperm Bank

open access: yesLife, 2023
Primary Bladder Neck Obstruction (PBNO) management provides medical and surgical treatment, such as transurethral incisions that can lead to retrograde ejaculation.
Maria Neve Hirsch   +9 more
doaj   +1 more source

Extend the Survival of Human Sperm In Vitro in Non-Freezing Conditions: Damage Mechanisms, Preservation Technologies, and Clinical Applications

open access: yesCells, 2022
Preservation of human spermatozoa in vitro at normothermia or hypothermia maintaining their functions and fertility for several days plays a significant role in reproductive biology and medicine.
Qingyuan Cheng   +8 more
doaj   +1 more source

A Noninvasive Method For In situ Determination of Mating Success in Female American Lobsters (Homarus americanus) [PDF]

open access: yes, 2014
Despite being one of the most productive fisheries in the Northwest Atlantic, much remains unknown about the natural reproductive dynamics of American lobsters.
Dubofsky, Elizabeth A.   +3 more
core   +106 more sources

Effect of somatometric parameters on the prevalence and severity of varicocele: a systematic review and meta-analysis

open access: yesReproductive Biology and Endocrinology, 2021
Background Published studies have shown contradictory results regarding the relationship between somatometric parameters and varicoceles. We performed a systematic review and meta-analysis to investigate the possible effects of age, height, weight, and ...
Runqing Li   +3 more
doaj   +1 more source

Sperm death and dumping in Drosophila [PDF]

open access: yes, 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   +29 more
core   +1 more source

Comment on Boitrelle et al. The Sixth Edition of the WHO Manual for Human Semen Analysis: A Critical Review and SWOT Analysis. Life 2021, 11, 1368

open access: yesLife, 2022
We wish to congratulate Boitrelle and colleagues for their comprehensive critical review on the Sixth Edition of the WHO Laboratory Manual for Human semen examination [...]
Francesco Pallotti   +2 more
doaj   +1 more source

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