Navigation Links
Sperm length variation is not a good sign for fertility
Date:11/13/2012

But perhaps the more interesting finding was that the greater the inconsistency of length in the sperm a man manufactures, particularly with regard to the flagellum, the lower his concentration of sperm that could swim well.

"The finding could give clinicians new insight into the diagnosis and treatment of male fertility problems, which accounts for up to 50 percent of the cases where couples struggle to conceive," Mossman said. The research suggests that at least in some men, measurable inconsistency in sperm length may be a sign of trouble with his process of making sperm, a process known as spermatogenesis. That trouble, akin to a manufacturing line with poor quality control, could result in a lower concentration of good swimmers.

"This could be an indirect marker of testis function," Mossman said.

Mossman acknowledged that there is nothing in the study that suggests what might cause spermatogenesis problems that would result in either inconsistent lengths or low concentrations of motile sperm.

"There are so many factors that govern sperm production, including environmental factors, genetic factors, and their interaction," Mossman said. "As an andrologist and evolutionary biologist, I am very interested in what causes this variation and how that affects the phenotype of the sperm and its fertility potential."


'/>"/>

Contact: David Orenstein
david_orenstein@brown.edu
401-863-1862
Brown University
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Nutrition tied to improved sperm DNA quality in older men
2. Gene involved in sperm-to-egg binding is key to fertility in mammals
3. Sperm can count
4. Mushroom-derived compound lengthens survival in dogs with cancer, Penn Vet study finds
5. Tough gel stretches to 21 times its length, recoils, and heals itself
6. Gene variations linked to lung cancer susceptibility in Asian women
7. New method for associating genetic variation with crop traits
8. Variations of a single gene can lead to too much or too little growth, study shows
9. Genetic variation in East Asians found to explain resistance to cancer drugs
10. Study of fruit fly chromosomes improves understanding of evolution and fertility
11. Researchers identify genetic markers to predict male fertility
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Sperm length variation is not a good sign for fertility
(Date:7/10/2014)... Columbia University Medical Center (CUMC) researchers have created a ... retinitis pigmentosa (RP), a leading cause of vision loss. ... of induced pluripotent stem (iPS) cell technology to transform ... as a patient-specific model for disease study and preclinical ... H. Tsang, MD, PhD, showed that a form of ...
(Date:7/9/2014)... research has uncovered how a complex protein pivotal in ... is activated. The discovery answers a key question about ... which has been the subject of tens of thousands ... funding. , Jiazhen Zhang, a research student in Professor ... uncovered how the protein complex, called NF-κB, is activated. ...
(Date:7/9/2014)... associate professor of plant pathology and microbiology ... the 2014 Alexopoulos Prize by the Mycological ... the science of mycology the study of fungi ... plant pathogens, and medically important fungi. , The award ... mycologist. Stajich received the award last month in East ...
Breaking Biology News(10 mins):Patient-specific stem cells and personalized gene therapy 2Patient-specific stem cells and personalized gene therapy 3Research reveals how key controller protein is switched on 2UC Riverside plant pathologist receives national recognition 2
... in a jetliner act and feel one way when crammed ... a different mindset when the middle seat is empty and ... parallel that exists among the proteins involved in health and ... issue of Chemical & Engineering News (C&EN), ACS, weekly newsmagazine, ...
... Georges Belfort has been recognized for his fundamental ... engineering. Belfort, the Russell Sage Professor of ... weeks received the 2011 Alan S. Michaels Award ... American Chemical Society (ACS) Biotechnology Division. ...
... A fascinating study published in the BMJ shows ... each week, as they drink daily, rather than more on ... disease than the Northern Irish. Ruidavets and colleagues compared groups ... have very different drinking cultures and rates of heart disease.The ...
Cached Biology News:Rensselaer Polytechnic Institute professor Georges Belfort wins biochemical engineering award 2Pattern of drinking affects the relation of alcohol intake to coronary heart disease 2
(Date:1/15/2014)... 2013 was a banner year of ... They saw continued independent research led by the team ... a $1 million grant from the Susanne Marcus Collins ... a peer reviewed journal, Amy Grant highlighted Brainwave Optimization® ...
(Date:1/15/2014)... TaiGen Biotechnology Company, Limited ("TaiGen") today announced that they ... Russian pharmaceutical company, to develop and commercialize nemonoxacin (Taigexyn ... , Turkey and other members ... antibiotic for the treatment of bacterial infections including those ...
(Date:1/14/2014)... January 14, 2014 Histogen, Inc., a ... of cells grown under simulated embryonic conditions, today announced ... with Suneva Medical, Inc. for physician-dispensed aesthetic products containing ... , This agreement is an amendment to the existing ...
(Date:1/14/2014)... NY (PRWEB) January 14, 2014 EquitiesIQ, ... Alliqua, Inc. (OTCQB: ALQA). Alliqua is an emerging biomedical ... serve the wound care market. , Free report download: ... restructured with a seasoned management team and Board, which ...
Breaking Biology Technology:Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 2Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 2TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 3TaiGen Biotechnology Signed Exclusive License Agreement with R-Pharm for Nemonoxacin (Taigexyn(R)) 4Histogen and Suneva Medical Expand License for Cell Conditioned Media-based Aesthetic Products Internationally 2Histogen and Suneva Medical Expand License for Cell Conditioned Media-based Aesthetic Products Internationally 3EquitiesIQ Initiates Coverage of Alliqua, Inc. 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 3
... Cmed Technology , an eClinical ... and give a presentation about electronic data capture (EDC) ... Ops Executives ( SCOPE ) conference at Florida,s Westin ... As part of SCOPE,s two-day "Electronic Data In ...
... Ky., Feb. 4, 2011 MediVet-America, the leading ... animals suffering from osteoarthritis, hip dysplasia, ligament and ... year of business having achieved record advances in ... Adipose-Derived Stem Cell Procedure Kit and equipment, veterinary ...
... (Pink Sheets: AVXT ) ("AVAX" or the ... with the Securities and Exchange Commission ("SEC").  Upon the ... become a publicly reporting company.  The Company intends to ... Over-the-Counter Bulletin Board.  The Company,s Form 10, which contains ...
Cached Biology Technology:Cmed Technology to Host Roundtable, Give Presentation About EDC Pain Points at Summit for Clinical Ops Executives (SCOPE) 2Cmed Technology to Host Roundtable, Give Presentation About EDC Pain Points at Summit for Clinical Ops Executives (SCOPE) 3Leading Animal Stem Cell Developer MediVet-America Achieves Significant Business Growth Milestones in First Year 2AVAX Technologies, Inc. Files Form 10 With SEC 2
...
Alexa Fluor 647 anti-mouse Qa-2...
... is ideal for developing single and multi-analyte ... contains the new, improved, and user friendly ... can design specific templates for commercial or ... integrated graphing and data regression capabilities; the ...
... The Luminex 100 Instrument System ... multi-analyte assays using Upstate's Beadlyte reagents. ... the Dell computer with software version ... Sheath Delivery System. Upstate offers $2000 ...
Biology Products: