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What can bulls tell us about men?

A team of researchers used biopsies from young bulls to investigate the genes and mechanisms controlling male fertility. They found a large number of genes associated with fertility in bulls, most of which are also relevant to human male fertility.

SourceETH Zurich·JournalNature Communications·TypeData/statistical analysis·DateFeb 16, 2024
Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Researchers locate novel targets for development of male contraceptive

Scientists discovered two new targets, EPPIN domains, to block sperm motility, a complex process that allows sperm to reach the egg. The study demonstrates the feasibility of using mice as models for in vivo trials, simplifying preclinical studies and paving the way for novel male contraceptives.

SourceFundação de Amparo à Pesquisa do Estado de São Paulo·JournalMolecular Human Reproduction·DateFeb 16, 2022
Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.

New study challenges claim that exogenous RNA is essential for sperm function

Researchers from the University of Bath have conducted double-blind experiments showing that healthy mice pups can be born from sperm without acquired short RNA chains, challenging a proposed mechanism of epigenetic inheritance. The study undermines claims made by two 2018 papers that reported RNA addition was necessary for fertility.

SourceUniversity of Bath·JournalDevelopmental Cell·DateJul 2, 2019

Changes to small RNA in sperm may help fertilization

Studies by UMass Medical School Professor Oliver J. Rando and colleagues found that small RNAs in sperm play a crucial role in normal pre-implantation development, with subtle differences between sperm from the epididymis impacting offspring health.

SourceUMass Chan Medical School·JournalDevelopmental Cell·DateJul 26, 2018

Male fertility, an issue for many species

Environmental pollutants interfere with hormonal signalling mechanisms in males, causing multiple pathologies including infertility. Professor Daniel Cyr's research focuses on sperm maturation and the role of a cellular barrier in the epididymis.

SourceInstitut national de la recherche scientifique - INRS·DateMay 9, 2018

Gpx5: Sperm shouldn't leave the testes without this protein

Researchers identified Gpx5 as a protective protein for immature sperm in the epididymis, reducing oxidative stress and associated with improved fertility outcomes. In contrast, males lacking Gpx5 showed increased miscarriage rates and fetal developmental defects.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJun 22, 2009
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Researchers find gene that spurs development of the epididymis

A team of researchers at the University of Illinois has discovered a key gene involved in the development of the epididymis, a critical structure for sperm fertility. The gene, inhibin beta A, plays a vital role in stimulating cell growth and differentiation, leading to the formation of the epididymal tube.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalProceedings of the National Academy of Sciences·DateJun 27, 2007