Mitochondrial respiratory capacity, sperm motility linked
Sperm with higher motility have increased mitochondrial respiratory capacity, according to a study published in the April issue of Urology.
(HealthDay) -- Sperm with higher motility have increased mitochondrial respiratory capacity, according to a study published in the April issue of Urology.
Alessandra Ferramosca, of the University of Salento in Lecce, Italy, and colleagues investigated whether sperm mitochondrial respiratory efficiency correlated with sperm motility and sperm morphologic anomalies. They used a polarographic assay of oxygen consumption to evaluate the mitochondrial respiratory activity of hypotonically-treated sperm cells.
The researchers observed a positive correlation between mitochondrial respiratory efficiency and sperm motility and a negative correlation with the percentage of immotile sperm. Mitochondrial functionality was impaired in sperm with midpiece defects.
"The results reported in this study support a strong and positive correlation between mitochondrial respiratory efficiency and sperm progressive motility. In addition and in strict agreement with these findings, morphologic alterations of the sperm midpiece, where mitochondria are found, are associated with lower mitochondrial functionality and lower sperm motility," the authors write. "These results confirm the important role played by mitochondria in supplying metabolic energy for sperm motility and provide more insights into the biochemical basis of mitochondria-based asthenozoospermia."
More information: Abstract
Full Text (subscription or payment may be required)
Copyright © 2012 HealthDay. All rights reserved.
-
Study: Cell phones reduce sperm counts
Oct 24, 2006 |
not rated yet |
0
-
'Fertility chip' determines concentration and mobility of semen
Oct 31, 2011 |
not rated yet |
0
-
Overweight men have poorer sperm count
Jul 04, 2011 |
not rated yet |
0
-
Viagra could be harmful to fertility
Feb 25, 2008 |
not rated yet |
0
-
Researchers Develop Test to Identify 'Best' Sperm
May 20, 2010 |
not rated yet |
0
-
Motion perception revisited: High Phi effect challenges established motion perception assumptions
Apr 23, 2013 |
3 / 5 (2) |
2
-
Anything you can do I can do better: Neuromolecular foundations of the superiority illusion (Update)
Apr 02, 2013 |
4.5 / 5 (11) |
5
-
The visual system as economist: Neural resource allocation in visual adaptation
Mar 30, 2013 |
5 / 5 (2) |
9
-
Separate lives: Neuronal and organismal lifespans decoupled
Mar 27, 2013 |
4.9 / 5 (8) |
0
-
Sizing things up: The evolutionary neurobiology of scale invariance
Feb 28, 2013 |
4.8 / 5 (10) |
14
-
Classical and Quantum Mechanics via Lie algebras
Apr 15, 2011
- More from Physics Forums - Independent Research
More news stories
Flesh-eating disease victim gets prosthetic hands
(AP)—A woman who lost both hands, her left leg and right foot after contracting a flesh-eating disease has been fitted with prosthetic hands.
Other
May 18, 2013 |
not rated yet |
0
Illinois Senate approves medical marijuana bill
(AP)—Medical marijuana use in Illinois is now in Gov. Pat Quinn's hands after the state Senate approved legislation.
Other
May 17, 2013 |
5 / 5 (1) |
0
Nigerian court jails two over killer teething drug
A Nigerian court on Friday sentenced two officials from a pharmaceutical company to seven years in prison over the sale of an adulterated teething drug which killed 84 babies in 2008.
Other
May 17, 2013 |
not rated yet |
0
Many patients would switch doc to cut health care costs
(HealthDay)—Many Americans feel that keeping out-of-pocket health care costs is more important than staying with the same primary care physician.
Other
May 17, 2013 |
not rated yet |
0
Cultural attitudes impede organ donations in China
(AP)—China is phasing out its reliance on executed prisoners for donated organs, but an architect of the country's transplant system said Friday that ingrained cultural attitudes are impeding the rise of ...
Other
May 17, 2013 |
not rated yet |
0
Immune protein could stop diabetes in its tracks
Melbourne researchers have identified an immune protein that has the potential to stop or reverse the development of type 1 diabetes in its early stages, before insulin-producing cells have been destroyed.
Lymphatic fluid takes detour
When tumours metastasise, they can block lymphatic vessels, as researchers from ETH Zurich have discovered using a new method. The lymphatic fluid subsequently has to find a new path through the tissue. Such ...
Discovery of novel medicine for treatment of chronic wounds
Every 20 seconds, a limb is lost as a consequence of diabetic foot ulcer that does not heal. To date, medical solutions that can change this situation are very limited. In his doctoral thesis Yue Shen from the Industrial ...
Novel mechanism allows Legionella to hide in body
(Medical Xpress)—The feared Legionella pneumophila is responsible for legionellosis, an infectious disease that can lead to pneumonia. To infect humans, this pathogen has developed a complex method that allows it to camouflage ...
Genetic screening could reveal hidden high risk for coronary heart disease
Finnish researchers have shown that genetic marker information can improve risk evaluation of coronary heart disease. The study comprised over 24,000 Finnish subjects and was led by Professor Samuli Ripatti. The results revealed ...
Powerful imaging tool unlocks kidneys' secrets
(Medical Xpress)—A powerful new way of imaging kidneys is providing scientists with insights into the importance of the body's filtering system and how it is affected by cardiovascular disease, stroke and ...
