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:6/17/2015)... , June 17, 2015  Crossmatch™, a leading ... that its U.are.U ® 4500 fingerprint readers ... Eateries, Inc., a San Jose, ... to increase security, improve accountability and reduce fraud ... instant, non-repudiable identity confirmation for employee sign in ...
(Date:6/16/2015)... 2015 Fingerprint Cards has received an ... the company,s portfolio from one of its module partners in ... take place during the third quarter 2015. The sensors will ... . Jörgen Lantto, CEO of FPC, comments: " ... growing interest from smartphone OEMs in integrating touch fingerprint sensors ...
(Date:6/15/2015)... 2015 A new report [ ... majority of US consumers using mobile banking applications want their ... fingerprint and voiceprint, instead of having to prove who they ... " Mobile Identity   -   The Fusion of Financial ... now the primary channel used by Gen X and Gen ...
Breaking Biology News(10 mins):Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 2Togo's Eateries Improve Security and Accountability with Crossmatch Fingerprint Readers 3FPC Receives Order for Touch Fingerprint Sensors of 375 MSEK 2One in Four US Consumers Would Share Their DNA With Their Bank to Secure Financial and Personal Information, Telstra Report Finds 2One in Four US Consumers Would Share Their DNA With Their Bank to Secure Financial and Personal Information, Telstra Report Finds 3One in Four US Consumers Would Share Their DNA With Their Bank to Secure Financial and Personal Information, Telstra Report Finds 4
... Reasons why you should attend this workshop: , ... players in Assisted Reproduction Technologies (ART) data monitoring in ... ART monitoring: An overview of ART data in ... world what have we learned?, Possibilities and limitations ...
... favours traits that enhance dispersal of populations to ... however, is relatively scarce. A study carried out ... Environmental Sciences of the University of Helsinki, along ... traits facilitating dispersal in an outer archipelago. The ...
... LANSING, Mich. The hellbender salamander known affectionately ... one of America,s unique giant salamander species. For unexplained ... little reproduction has occurred in recent decades. ... Zoo in Belgium, veterinarians from Michigan State University are ...
Cached Biology News:The European IVF Monitoring Group celebrates its 10-year anniversary 2UH: Insular evolution: Large and big-footed voles in an outer archipelago 2Preserving sperm vital to saving 'snot otter' salamanders 2
(Date:6/30/2015)... ... June 30, 2015 , ... ... to take part in the first half of “Integrative Biotechnology,” an applied biotechnology ... established in summer 2014, this course combines students from both universities and is ...
(Date:6/30/2015)... 30, 2015  Juniper Pharmaceuticals, Inc. (Nasdaq: JNP ... therapeutics that address unmet medical needs in women,s ... will present at the Cantor Fitzgerald Inaugural ... 2015Time: , 4:45 PM EDTLocation: , Le Parker ... , www.juniperpharma.com, under  ,Investor, or  click ...
(Date:6/30/2015)... ... June 30, 2015 , ... Noblis, Inc., ... announced in a paper published this week in the scientific journal Viruses ( ... diagnostic techniques currently used to detect the Ebola virus. Noblis worked with the ...
(Date:6/30/2015)... June 30, 2015  Custom Computer Specialists, Inc. ("Custom"), ... they are silver sponsors of the Primary Care Development ... Custom is lending their support of PCDC,s mission to ... Since its founding in 1993, PCDC has been ... area.  PCDC has financed over 100 completed primary care ...
Breaking Biology Technology:Rivier University and Beijing City University Academic and Cultural Exchanges Begin 2Juniper Pharmaceuticals to Present at Cantor Fitzgerald Inaugural Healthcare Conference on July 8, 2015 2Noblis and Government Scientists Identify New Genomic Signatures of Ebola Using Whole Genomic Sequencing and Innovative BioVelocity Analytics Tool 2Noblis and Government Scientists Identify New Genomic Signatures of Ebola Using Whole Genomic Sequencing and Innovative BioVelocity Analytics Tool 3Noblis and Government Scientists Identify New Genomic Signatures of Ebola Using Whole Genomic Sequencing and Innovative BioVelocity Analytics Tool 4Custom Computer Specialists Announces Sponsorship Of The Primary Care Development Corporation's Corporate Circle 2
... MultiCell,Technologies, Inc. (OTC Bulletin Board: MCET) has moved into new ... May 1, 2008:, -- the new address is: ... RI 02895. -- new phone number is: ... (401) 762-0098, MultiCell Technologies, Inc. is a biopharmaceutical company ...
... to announce that,Grace Ju, Ph.D., research director, RNA Therapeutics ... of Science" by the New Jersey,Association of Biomedical Research ... held May 1 at the Bridgewater Manor., Dr. ... event, which is also,marking the 20th anniversary of NJABR, ...
... Company with 3 divisions has exciting new and unique products; ... contracts to be announced in near future ..., BOCA ... "Company") announced today that their stock is now,up and trading on ... Filings are complete at PinkSheets.com. From this point,Solei will continue on ...
Cached Biology Technology:MultiCell Technologies Relocates Corporate Headquarters 2Roche Research Director Grace Ju Hailed as NJABR 'Outstanding Woman of Science' 2Roche Research Director Grace Ju Hailed as NJABR 'Outstanding Woman of Science' 3Solei Systems, Inc., Announces That the Company Is Now Publicly Traded 2Solei Systems, Inc., Announces That the Company Is Now Publicly Traded 3Solei Systems, Inc., Announces That the Company Is Now Publicly Traded 4
Peroxidase Protective Buffer is a diluent formulated to stabilize the activity of Chemicon horseradish peroxidase (HRP)-antibody conjugates at high conjugate dilution for extended periods....
... Digest Medium (TSB), USP is a highly ... general laboratory use. Due to the inclusion ... medium will support growth of many fastidious ... , Product conforms to United States Pharmacopeia ...
... cells-directed transfection reagent : jetPEI-RGD ... which allows targeted efficient transfection ... cells. Integrins are adhesion molecules ... adhesion processes. Many integrins, including ...
... software is used to predict ... DNA sequence up to 3,200 ... placement of primers and GC ... denaturing gradient gel electrophoresis (DGGE), ...
Biology Products: