Researchers in Associate Professor Romain Barres' laboratory compared sperm cells
from 13 lean men and 10 obese men and discovered that the sperm cells
in lean and obese men, respectively, possess different epigenetic marks that could alter the next generation's appetite, as reported in the medical journal Cell Metabolism.
1] A male sperm cell
in its developmental stage, during which meiosis occurs
Evidence that proteolysis of the surface is an initial step in the mechanism of formation of sperm cell
More specifically, the time-varying posture causes a change in the shape factor, which is dependent on the orientation and shape of sperm, as a sperm cell
progresses through the aperture.
However, when vitamin D is added to live human sperm cells
in the lab, it produces a sharp increase in sperm motility, along with rapid development of the "acrosome reaction" that allows the sperm cell
to attach to the egg.
Approximately 1,300 proteins of the human sperm cell
, sum of 2-DE and GeLC-MS/MS techniques, were analyzed by DAVID software.
have a long journey through a host of biological environments.
The researchers also attempted to create sperm cells
using XX (female) stem cells, but concluded that the genes on the Y chromosome are necessary for sperm development and maturation.
Keywords: Solifugae, genital system, sperm cell
The negative controls amplified with DNA extracted from normal sperm cells
or sperm cell
mixed with DNA without PEI treatment, showed no bands, indicating that the sperm cells
did not absorb DNA by itself or DNA was degraded by nuclease without the protection of the PEI/DNA complex.
It's created when a sperm cell
(male sex cell) fertilizes, or fuses with, an egg cell (female sex cell).
5 Kyodo Laboratory experiments on mice show that exposure to particulate matter from diesel engine exhaust diminishes sperm cell
production, researchers from the Science University of Tokyo's pharmacology department said Monday.
ERGO increased sperm cell
viability by 15-20% in pre-clinical and clinical studies as measured by total and progressive motility, when added to known cell extender preservatives in general use in the fertility field.
The researchers said that this is the first technique for collecting data on sperm cell
motility-a key predictor of IVF success-in three dimensions and over time.
Using his sperm, Quake and colleagues compiled the first-ever genetic blueprint for a single sperm cell