Male contraceptive options and infertility treatments are limited, and almost all innovation has been limited to updates to medically assisted reproduction protocols and methods. To accelerate the development of drugs that can either improve or inhibit fertility, we established a small molecule library as a toolbox for assay development and screening campaigns using human spermatozoa. We have profiled all compounds in the Sperm Toolbox in several automated high-throughput assays that measure stimulation or inhibition of sperm motility or the acrosome reaction. We have assayed motility under non-capacitating and capacitating conditions to distinguish between pathways operating under these different physiological states. We also assayed cell viability to ensure any effects on sperm function are specific. A key advantage of our studies is that all compounds are assayed together in the same experimental conditions, which allows quantitative comparisons of their effects in complementary functional assays. We have combined the resulting datasets to generate fingerprints of the Sperm Toolbox compounds on sperm function. The data are included in an on-line R-based app for convenient querying.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10878532 | PMC |
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0297666 | PLOS |
J Assist Reprod Genet
January 2025
NHC Key Laboratory of Human Stem Cell and Reproductive Engineering, School of Basic Medical Sciences, Central South University, Changsha, China.
Purpose: This study identified novel variants of the FSIP2 and SPEF2 genes in multiple morphological abnormalities of the sperm flagella (MMAF) patients and to investigate the potential effect of variations on male infertility and assisted reproductive outcomes.
Methods: Whole-exome sequencing was performed in 106 Chinese MMAF patients. The discovered variants were evaluated in silico and confirmed by Sanger sequencing.
Int Urol Nephrol
January 2025
Department of Urology, Faculty of Health Sciences, Steve Biko Academic Hospital, University of Pretoria, Pretoria, South Africa.
Purpose: Contemporary antiretroviral (ARV) medications are used by millions of men for HIV treatment worldwide. Limited data exist on their direct effect on sperm motility. This pilot study hypothesizes that in vitro exposure to ARVs will reduce sperm kinematic and motility parameter values.
View Article and Find Full Text PDFMol Psychiatry
January 2025
Institute of Biomedicine, Integrative Physiology and Pharmacology Unit, University of Turku, Turku, Finland.
Childhood maltreatment exposure (CME) increases the risk of adverse long-term health consequences for the exposed individual. Animal studies suggest that CME may also influence the health and behaviour in the next generation offspring through CME-driven epigenetic changes in the germ line. Here we investigated the associated between early life stress on the epigenome of sperm in humans with history of CME.
View Article and Find Full Text PDFRev Int Androl
December 2024
Department of Human Physiology, Faculty of Basic Medical Sciences, College of Health Sciences, Nnamdi Azikiwe University, Nnewi Campus, P.O. Box 5001, 435101 Nnewi, AN, Nigeria.
Background: Tramadol, an opioid analgesic, is known to induce testicular damage and impair reproductive parameters. Vitamin D3, recognized for its antioxidant and protective properties, might offer a potential protective effect against tramadol-induced testicular damage. This study observed the effects of co-administration of vitamin D3 and tramadol on serum kisspeptin levels, testicular histology, semen parameters, testosterone levels, and oxidative stress markers in male rats.
View Article and Find Full Text PDFRev Int Androl
December 2024
Wuxi School of Medicine, Jiangnan University, 214002 Wuxi, Jiangsu, China.
Background: The massive harmful effects of cigarette (tobacco) smoking on reproduction and fecundity are apparent. Even smoking cessation is often suggested for infertility patients by clinic doctors, while the impact of smoking cessation on semen quality in patients with oligoasthenospermia is uncovered.
Methods: Ninety oligoasthenospermia patients with long tobacco smoking history were directed by andrology doctors to cease smoking, and their cessation was followed up for 3 to 6 months.
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