Posts Tagged ‘sperm’
After cancer, many men don’t check fertility
U. SHEFFIELD (UK) — Many men are unaware of how cancer treatment affects their fertility over the long run and may limit their parenthood choices by failing to follow up with testing. Continue…
Thursday, January 3, 2013 15:32 - 0 Comments
Health & Medicine - Dec 20, 2012 16:29 - 0 Comments
Male fertility linked to gender of siblings
U. SHEFFIELD (UK) / BROWN (US) — Scientists have found a correlation between the swimming speed of a man’s sperm and how many brothers he has. (more…)
Health & Medicine - Nov 14, 2012 11:41 - 0 Comments
Good swimmers? Why sperm length matters
BROWN (US) / U. SHEFFIELD (UK)— Men who have sperm that tend to vary in length—particularly in the tail—often have a lower concentration of sperm that can swim well, a possible sign of fertility trouble. (more…)
Health & Medicine - Nov 2, 2012 14:36 - 1 Comment
After cancer, stem cells restore male fertility
U. PITTSBURGH (US) — After an injection of banked sperm-producing stem cells, male primates who become sterile due to cancer drug side effects were once again fertile. (more…)
Health & Medicine - Oct 8, 2012 10:28 - 0 Comments
Protein defect trims sperms’ tails
MONASH U. (AUS) — A dysfunctional protein can result in sperm with shorter tails and limited swimming ability, researchers say. (more…)
Health & Medicine - Sep 21, 2012 14:02 - 1 Comment
Give sperm a ‘kick’ to make it fertile
CARDIFF U. (UK) — Adding a missing protein to infertile human sperm can increase its ability to fertilize an egg, dramatically increasing the chances of a successful pregnancy. (more…)
Health & Medicine - Sep 18, 2012 11:48 - 0 Comments
For older men, healthy diet keeps sperm fit
UC BERKELEY (US) — Getting a healthy amount of micronutrients is strongly associated with improved sperm DNA quality in older men, report scientists, who found no such benefit for younger men. (more…)
Health & Medicine - Sep 5, 2012 15:43 - 1 Comment
Compound may lead to first Pill for men
TEXAS A&M (US) — A compound originally used for anti-cancer treatments appears to be effective in controlling fertility in male mice. (more…)
Health & Medicine - Aug 28, 2012 9:48 - 0 Comments
Stem cells prodded toward turning into sperm
U. PITTSBURGH (US) — Scientists have turned two types of stem cells into precursor sperm cells—and say one day it could be possible to restore sterile men’s fertility with just skin samples. (more…)
Science & Technology - Aug 2, 2012 10:57 - 1 Comment
Slower fruit fly sperm may win the race
SYRACUSE U. (US) — It’s assumed that faster sperm have an edge in the race to fertilize the egg—but slower swimmers may have an advantage over their faster rivals. (more…)
Health & Medicine - Feb 2, 2012 11:16 - 0 Comments
Is ultrasound the future of male contraception?
UNC-CHAPEL HILL (US) — Ultrasound equipment commonly used for physical therapy reduces sperm counts in lab rats to levels that would result in infertility in humans. (more…)
Science & Technology - Jan 31, 2012 14:54 - 0 Comments
Sperm production is costly, crickets show
MONASH U. (AUS) — The production of sperm is more biologically taxing than previously thought, a new study with crickets proves. (more…)
Science & Technology - Aug 15, 2011 14:53 - 0 Comments
Abalone plume draws in sperm
U. WASHINGTON (US) — A molecule notorious for making us sleepy at Thanksgiving also makes it easier for red abalone sperm to hit their target. (more…)
Top Stories - Jul 21, 2011 12:20 - 0 Comments
No coat, no egg: Why some sperm fail
UC DAVIS (US) — Sperm that lack a special protein coating have trouble reaching the egg. The discovery could open up new ways to screen and treat couples for infertility. (more…)
Health & Medicine - Mar 18, 2011 10:06 - 0 Comments
Gene coupled to male infertility
STONY BROOK U. (US) — A new role for mitochondria may hold clues to some causes of male infertility and in turn could have potential in the future for use in a male contraceptive. (more…)
Science & Technology - Nov 8, 2010 12:13 - 0 Comments
Do sperm have commitment phobia?
U. MINNESOTA (US) — Germ cells, the cells that give rise to eggs and sperm, undergo a special form of cell division that commits them to their fates. But future sperm put it off much longer than future eggs do. (more…)
Health & Medicine - Jun 10, 2010 11:56 - 2 Comments
Fertility test singles out five-star sperm
YALE (US)—Researchers have discovered a method to select sperm with the highest DNA integrity in a bid to improve male fertility. The method is comparable to that of the egg’s natural selection abilities, according to the study published in the most recent issue of the Journal of Andrology. (more…)
Health & Medicine - May 14, 2010 15:41 - 6 Comments
Male contraceptive that comes with a zap!
UNC CHAPEL HILL (US)—Some might call it the Holy Grail of reproductive science: developing a long-term, inexpensive, completely reversible, and nonhormonal male contraceptive. (more…)
Health & Medicine - Apr 20, 2010 16:04 - 2 Comments
Omega-3 helps sperm get up and go
U. ILLINOIS (US)—Omega-3 fatty acids are good for more than heart health. New research shows they may have implications for treating male infertility. (more…)
