Results 121 to 130 of about 63,166 (297)
The prevalence of motility-related genes within the human oral microbiota
Microbiology SpectrumThe human oral and nasal microbiota contains approximately 770 cultivable bacterial species. More than 2,000 genome sequences of these bacteria can be found in the expanded Human Oral Microbiome Database (eHOMD).
Sofia T. Rocha +3 more
doaj +1 more source
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 +2 more
wiley +1 more source
Andrology, EarlyView.ABSTRACT Background Diabetes mellitus (DM) induces multifaceted cellular and structural alterations in the male reproductive system, thereby predisposing to infertility. Objectives This study aimed to evaluate the morphological, stereological, biochemical, histopathological, and ultrastructural changes induced by DM in testicular tissue, and to ...
Ayşenur Kaya Mutlu, Süleyman Kaplan
wiley +1 more source
Andrology, EarlyView.ABSTRACT Background Sperm mitochondrial DNA copy number is an emerging marker of male fertility, with elevated mtDNAcn associated with poor semen quality across various populations. Sperm DNA methylation has also been previously demonstrated to be negatively correlated with semen parameters in IVF cohorts.
Savni Sawant +7 more
wiley +1 more source
Spatiotemporal Expression of ARRDC5 in Mammalian Spermatogenesis
Andrology, EarlyView.ABSTRACT Background Spermiogenesis is the final phase of sperm development during which haploid round spermatids transform into specialized spermatozoa and occurs across distinct stages of sperm production in the seminiferous epithelium. Abnormalities in this process lead to malformations and an inability of sperm to fertilize eggs.
LeeLa D. Robinson, Jon M. Oatley
wiley +1 more source
Salmonella Detection in Food Using a HEK-hTLR5 Reporter Cell-Based Sensor
BiosensorsThe development of a rapid, sensitive, specific method for detecting foodborne pathogens is paramount for supplying safe food to enhance public health safety.
Esma Eser +3 more
doaj +1 more source
Clostridioides difficile Flagella
International Journal of Molecular SciencesClostridioides difficile is an important pathogen for humans with a lead in nosocomial infection, but it is also more and more common in communities. Our knowledge of the pathology has historically been focused on the toxins produced by the bacteria that remain its major virulence factors.
Jean-Christophe Marvaud +3 more
openaire +2 more sources
Andrology, EarlyView.ABSTRACT Background During spermiogenesis, protamines (PRMs) replace histones to hypercondense and protect sperm DNA. Rodents and primates express two PRMs (PRM1 and PRM2). Alterations of species‐specific PRM ratios are associated with sub‐ or infertility in mice and humans.
Gina Esther Merges +6 more
wiley +1 more source
Bacterial Flagella Are Firmly Anchored
, 2019 There are mutants of Salmonella enterica (with mutations in fliF and fliL) that shed flagella when they are swimming in a viscous medium or on the surface of soft agar. Filaments with hooks and the distal rod segment FlgG are recovered.
Darnton, Nicholas C., Berg, Howard C.
core +1 more source
Andrology, EarlyView.ABSTRACT Background Since the 1990s, declining sperm counts and increasing testicular cancer rates have raised worldwide concern about male reproductive health, including in Denmark. This prompted a prospective population‐based study with annual surveillance of semen quality.
Lærke Priskorn +13 more
wiley +1 more source