Word: hyper
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
Levy uses teenage girls to highlight the destructive effects of our hyper-sexualized culture...
...let’s see—last name on a building, alumni relatives in the double-digits...I’m not sure if anyone but me uses this term, but I think I qualify as a “hyper-legacy...
What they discovered was that sperm hyper-activation requires the current produced by CatSper...
When sperm are swimming far away from eggs, their flagella beat steadily with sinusoidal motions. However, for fertilization to occur, the sperm need to be hyper-activated. Hyper-activated sperm swim with vigorous, whip-like motions that gives them the force they need to penetrate the protective membrane of the eggs. Prior to Kirichock and Navarro’s research, which was published in the February 9 issue of the scientific journal Nature, the cause of this hyper-activation was unknown...
...CatSper protein is activated by the higher pH environment of the female cervix. Activated CatSper allow calcium ions to flow into the sperm’s tail. The calcium influx, measurable as an electrical current, alters the way the flagella bends and hyper-activates the tail’s motor proteins. In experiments, mice altered to lack the CatSper protein had weak swimming sperm and were infertile...