Results 71 to 80 of about 62,614 (258)

One‐Step Induction of Oogonia‐Like and Pro‐Spermatogonia‐Like Cells From Porcine Pluripotent Stem Cells

open access: yesAdvanced Science, EarlyView.
This study established a one‐step method inducing pro‐spermatogonia‐like (activating SOX17) and oogonia‐like (activating SOX17/TFAP2C) cells from porcine pgEpiSCs with a NANOS3‐tdTomato reporter. EGF activates the core PGC program and supports survival; BMP4 further induces NANOS3 and DDX4 expression; IWR1 enhances PGCLC efficiency by suppressing ...
Pengcheng He   +14 more
wiley   +1 more source

Design, Control, and Clinical Applications of Magnetic Actuation Systems: Challenges and Opportunities

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This review aims to provide a broad understanding for interdisciplinary researchers in engineering and clinical applications. It addresses the development and control of magnetic actuation systems (MASs) in clinical surgeries and their revolutionary effects in multiple clinical applications.
Yingxin Huo   +3 more
wiley   +1 more source

Sperm Selection through Microvesicle-Mediated ChemotaxisInduced by Follicular Fluid and Cumulus Cells [PDF]

open access: yesCell Journal
Objective: Selecting the most competent sperm is crucial for improving the success of intracytoplasmic sperm injection(ICSI). Chemotaxis-based sperm selection may facilitate the selection of spermatozoa with superior motility andfertilization capability.
Tohid Rezaei Topraggaleh   +3 more
doaj   +1 more source

Evolutionary relationship between organellar DNA inheritance patterns and traits of seed plants

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise In plants, organellar DNA is predominantly maternally inherited, but biparental and paternal inheritance have also been observed. Specific mechanisms, such as plastid exclusion during pollen mitosis or genome degradation, ensure maternal inheritance.
Takuya Konuma, Takashi Makino
wiley   +1 more source

The Comparison of HA Binding and Zeta Methods Efficiency in Selection of Sperm with Normal Morphology and Intact Chromatin

open access: yesمجله دانشکده پزشکی اصفهان, 2009
Background: Sperm selection for ICSI is based on morphology and motility, but these parameters may not relevant chromatin integrity. One of the sperm selection methods for ICSI is based on sperm functional characteristics.
Mohammad Reza Deemeh   +5 more
doaj  

Functional Specialization of Respiratory and Olfactory Mucus Revealed by Proteomic Profiling

open access: yesInternational Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Mucus overlies the nasal mucosa in the respiratory and olfactory regions, which perform distinct physiological functions. However, proteomic differences between respiratory mucosa (RM) and olfactory cleft (OC) mucus remain unclear.
Anna Kristina Hernandez   +7 more
wiley   +1 more source

Proteins involved in motility and sperm-egg interaction evolve more rapidly in mouse spermatozoa.

open access: yesPLoS ONE, 2014
Proteomic studies of spermatozoa have identified a large catalog of integral sperm proteins. Rapid evolution of these proteins may underlie adaptive changes of sperm traits involved in different events leading to fertilization, although the selective ...
Alberto Vicens   +2 more
doaj   +1 more source

Tracing the evolutionary history of the morpho‐anatomy of baculum in primates

open access: yesThe Anatomical Record, EarlyView.
Abstract Animal morphology reflects both evolutionary history and present‐day adaptation. Male mammal copulatory structures such as the baculum (penile bone) are ideal for studying these processes because of their complexity and high interspecific variability. In primates, however, research has focused mostly on baculum length.
Federica Spani   +3 more
wiley   +1 more source

Male reproductive system in stenopodidean shrimps: Unveiling basal reproductive traits in shrimp‐like Pleocyemata (Stenopodidae and Spongicolidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract Stenopodidea represents one of the basal lineages within Pleocyemata, yet the male reproductive system (MRS) of this group remains poorly understood, with limited information available regarding its morphology and function. This study provides the first detailed description of the MRS in four stenopodidean shrimp species from two families ...
Caio Santos Nogueira   +2 more
wiley   +1 more source

Sexual Selection: Sperm in the Fast Lane [PDF]

open access: yesCurrent Biology, 2009
Sperm competition has led to spectacular adaptations in males and their ejaculates. A recent study of Tanganykan cichlids provides compelling evidence that sperm competition can drive the evolution of faster, longer sperm.
openaire   +2 more sources

Home - About - Disclaimer - Privacy