Results 51 to 60 of about 9,203 (183)

Abnormal Axonemes in Sperm of Fertile Men [PDF]

Archives of Andrology, 1986
Sperm of 20 men aged 20-44 years was analyzed for motility and tail deformities in a Makler chamber and for axoneme abnormalities by transmission electron microscopy. In the quantitative analyses, 12.5 +/- 5.5% deformed tails at the light microscopic level and 24.4 +/- 7.7% abnormal axonemes in the principal piece.
D G, Hunter, F L, Kretzer
openaire   +2 more sources

Sperm Head–Tail Coupling Apparatus Diversity and Common Themes Among Species

Andrology, EarlyView.
ABSTRACT Background A stable connection between the sperm head (containing the nucleus and acrosome) and tail (containing the axoneme, mitochondrial sheath, and periaxonemal structures) is critical for fertility. This connection is mediated by a series of nuclear, cytoplasmic, and centriole components that make up the head–tail coupling apparatus (HTCA)
Danielle B. Buglak, Brian J. Galletta, Nasser M. Rusan   +2 more
wiley   +1 more source

Biallelic Truncating Variant in LRGUK Is Associated With Severe Multiple Morphological Abnormalities of the Sperm Flagella and Sperm Nuclear Defects in Humans

Clinical Genetics, EarlyView.
A homozygous truncating variant in LRGUK results in loss of the LRGUK protein and causes multiple morphological abnormalities of the flagella (MMAF), disrupted axonemal architecture, central pair defects, abnormal chromatin organization, and severe male infertility, establishing LRGUK as a novel human infertility gene.
Wiâme Mokkedem, Zeina Wehbe, Anne‐Laure Barbotin, Angèle Boursier, Célia Tebbakh, Nicolas Thierry‐Mieg, Marie Bidart, Antonella Migliaccio, Rosanna Chianese, Christophe Arnoult, Raoudha Zouari, Zine‐Eddine Kherraf, Pierre F. Ray, Guillaume Martinez, Charles Coutton   +14 more
wiley   +1 more source

Reconstruction of native cellular microanatomy in a novel bioengineered full thickness human nasal mucosal construct

Journal of Anatomy, EarlyView.
Bioengineered tissue constructs are vital technologies employed in in vitro testing of both fundamental biological principles and industrial screening practices. Current approaches to modelling the nasal mucosa in vitro are not representative and are associated with limitations that impact their reliability and predictive value.
Steven Bradbury, Bethany Dickson, Nicola Curtis, David Bunton, Kirsty Goncalves, Stefan Przyborski   +5 more
wiley   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Noncoding RNA Transcripts Based Molecular Phenotyping of MASLD and MASH Patients

Liver International Communications, Volume 7, Issue 3, September 2026.
ABSTRACT Background and Aims Metabolic dysfunction‐associated steatotic liver disease (MASLD) is a progressive hepatic metabolic disorder characterized by excessive fat accumulation in hepatocytes. MASLD can advance to metabolic dysfunction‐associated steatohepatitis (MASH).
Frida M. Delgadillo, Karla Perez, Barbara Yang, Subramanian Dhandayuthapani, Murali M. Yallapu, Subhash C. Chauhan, Enrique I. Ramos, Shrikanth S. Gadad   +7 more
wiley   +1 more source

Fish Sperm Subpopulations Detection, Separation, and Application: Current State and Trends

Reviews in Aquaculture, Volume 18, Issue 4, September 2026.
Modern advances in sperm biology highlight the necessity of recognising intra‐ejaculate heterogeneity as a central concept for advancing both the fundamental understanding of fertilisation processes and the development of artificial reproduction techniques in fishes. ABSTRACT Sperm subpopulations represent a fundamental manifestation of intra‐ejaculate
Viktoriya Dzyuba, William V. Holt, Borys Dzyuba   +2 more
wiley   +1 more source

Sperm-associated antigen 6 (SPAG6) deficiency and defects in ciliogenesis and cilia function: polarity, density, and beat. [PDF]

PLoS ONE, 2014
SPAG6, an axoneme central apparatus protein, is essential for function of ependymal cell cilia and sperm flagella. A significant number of Spag6-deficient mice die with hydrocephalus, and surviving males are sterile because of sperm motility defects.
Maria E Teves, Patrick R Sears, Wei Li, Zhengang Zhang, Waixing Tang, Lauren van Reesema, Richard M Costanzo, C William Davis, Michael R Knowles, Jerome F Strauss, Zhibing Zhang   +10 more
doaj   +1 more source

A Quarter Century of EHD Protein Research: From Endosomal Recycling to Ciliopathies

Traffic, Volume 27, Issue 3, September 2026.
Human EHD protein subcellular localization. ABSTRACT Eps15 homology domain‐containing proteins comprise a conserved family of membrane‐remodeling ATPases that regulate endocytic trafficking, membrane fission, receptor recycling, primary ciliogenesis and membrane dynamics across eukaryotes. Since the initial identification of EHD1 and its Caenorhabditis
Devin Frisby, Gunjan Misri, Naava Naslavsky, Steve Caplan   +3 more
wiley   +1 more source

Are kinocilia motile?

eLife
Gene expression patterns in the inner ear put an old question about structures called kinocilia back in motion.
Ruth Anne Eatock, Marina Kabirova
doaj   +1 more source