Routine semen analysis, which includes assessment of sperm motility, viability, and morphology, does not always provide complete diagnostic information as men demonstrating standard scores on these specific parameters sometimes remain infertile. In infertile men who had been subgrouped on the basis of sperm count, motility, morphology, and presence of leukocytes, an evaluation of sperm function and reactive oxygen species (ROS) was found to be effective tools to detect sperm pathologies.
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http://dx.doi.org/10.1016/j.fertnstert.2009.05.074 | DOI Listing |
BMC Genomics
December 2024
Department of Medicine and Animal Surgery, Veterinary Science, University of Murcia, Murcia, Spain.
Background: Extracellular vesicles (EVs) are essential for cell-to-cell communication because they transport functionally active molecules, including proteins, RNA, and lipids, from secretory cells to nearby or distant target cells. Seminal plasma contains a large number of EVs (sEVs) that are phenotypically heterogeneous. The aim of the present study was to identify the RNA species contained in two subsets of porcine sEVs of different sizes, namely small sEVs (S-sEVs) and large sEVs (L-sEVs).
View Article and Find Full Text PDFSci Rep
December 2024
Complete Fertility, Princess Anne Hospital, Level F, Coxford Road, Southampton, SO16 5YA, UK.
Elevated progesterone (EP) or inadequate progesterone levels during ART cycle monitoring may lead to cycle cancellations or further progesterone supplementation, but practice varies. It remains controversial whether modifying clinical practice in the presence or absence of EP improves clinical outcomes. This systematic review aims to investigate if progesterone levels at different phases of fresh and frozen ART cycles influence pregnancy outcomes, in particular, that pertaining to day 3 versus day 5 embryo transfers.
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December 2024
Department of Urology, Osaka University Graduate School of Medicine, Suita, 565-0871, Osaka, Japan.
One in five couples who wish to conceive is infertile, and half of these couples have male infertility. However, the causes of male infertility are still largely unknown. Creatine is stored in the body as an energy buffer, and the testes are its second-largest reservoir after muscles.
View Article and Find Full Text PDFVet Sci
December 2024
Clinic of Reproductive Medicine, Department for Farm Animals, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260, CH-8057 Zurich, Switzerland.
Sperm viability is routinely assessed for the quality control of cryopreserved bovine sperm batches but is not usually conclusive regarding their fertilizing potential. In this study, we investigated the fertility predictive value of bull sperm viability in combination with DNA integrity or the functional status of viable sperm. In addition to sperm viability, we flow cytometrically assessed the percentage of sperm with high DNA fragmentation index (%DFI) and the fraction of viable sperm with low intracellular Ca content and functional mitochondria using the Sperm Chromatin Structure Assay and a five-color staining panel in 791 and 733 cryopreserved batches with non-return rate (NRR) records after ≥100 first services, respectively.
View Article and Find Full Text PDFVet Sci
November 2024
Department of Veterinary Medicine and Animal Sciences, Università degli Studi di Milano, 26900 Lodi, Italy.
Tobacco smoke has numerous adverse effects on both human and animal health, including impaired reproductive function. Recent research has explored environmental exposure in dogs, investigating various biological matrices. However, no data are currently available on the presence of cotinine, a nicotine metabolite, in the canine ejaculate.
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