Navigation Links
Living longer - variability in infection-fighting genes can be a boon for male survival
Date:5/11/2012

Females of mammals (including humans) tend to outlive males, a circumstance that is usually attributed to males more aggressive and hence energy-depleting behaviour, especially when they compete for females. This might also explain why males of many species usually show a higher parasite burden than females. Therefore, high variability of immune genes, supposed to reduce susceptibility to pathogens, may be more important for males. Scientists at the Research Institute of Wildlife Ecology (FIWI) of the University of Veterinary Medicine, Vienna have now found that male Alpine chamois heterozygous at a particular immune gene locus (i.e. who possess two different forms of that gene) indeed survive significantly longer than homozygous individuals (i.e. those with two identical copies of the gene) but they found no such effect for female chamois. The results are published in the current issue of the international journal BMC Evolutionary Biology (BMC Evolutionary Biology 2012, 12:20).

A heavy price to pay for love

It comes as no surprise to learn that males devote considerable efforts in wooing females. To understand just how costly their exertions are, Helmut Schaschl, Franz Suchentrunk, David L. Morris, Hichem Ben Slimen, Steve Smith, and Walter Arnold have undertaken a long-term study of survival patterns and their possible immune genetic basis in free-living populations of Alpine chamois (Rupicapra rupicapra).

Alpine chamois may live for 16 to 20 years in the wild, although male survival may decrease appreciably after the age of 11. This was the case in areas affected by scabies, a highly contagious disease that occurs in regular waves across large parts of the Eastern Alps. In these populations, reproductively active males have a higher death rate than females and younger males, presumably because the energetic challenge of the winter rut renders them more susceptible to the disease. "We found that the older cham
'/>"/>

Contact: Prof. Walter Arnold
walter.arnold@vetmeduni.ac.at
43-148-909-15100
University of Veterinary Medicine -- Vienna
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Heart attack survivors living close to highways face higher 10-year death risk
2. Living Near Major Roads May Shorten Heart Attack Survival
3. White Women Make Up Bulk of Assisted-Living Residents
4. Many Americans Ambivalent Over Laws Aimed at Healthy Living
5. Living to 100 May Be Tougher Than You Think
6. 4.5 million Americans living with total knee replacement
7. Odds of living a very long life lower than formerly predicted
8. Living Together May Be Mentally Healthier Than Marriage: Study
9. Americans Living Longer, Report Finds
10. Nanometer-scale growth of cone cells tracked in living human eye
11. More Americans Living to 90, U.S. Census Finds
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/22/2014)... Best Cheap Hosting USA is among ... site has recently announced that iPower ( http://www.best-cheap-hosting-usa.com/go/iPower/ ) ... from around the world. , “iPower is one of ... is providing various kinds of useful products for new ... offering excellent customer service and a number of features ...
(Date:10/22/2014)... October 22, 2014 Richard Carlson, Managing ... industry leader with over 25 years experience. Mr. ... in the areas related to EDI, B2B Commerce, RFID ... an Editorial Advisory Board member for Pharmaceutical Commerce Magazine ... Blue Fin Group is a management and technology consulting ...
(Date:10/22/2014)... Tara Haelle HealthDay Reporter , ... young adult men may lead to increased blood pressure, according ... a similar rise in blood pressure for young adult women ... young adult women drank lightly or moderately, their risk of ... "This finding parallels studies in older adult men and ...
(Date:10/20/2014)... The newly updated Worldwide Medical Market Forecasts ... facts, figures and forecasts on the global medical markets. ... categories the Worldwide Medical Market Forecasts to 2019 ... on the worldwide medical market to reveal key insights ... data for 2010-2019, covering each country market individually, allowing ...
(Date:10/20/2014)... (PRWEB) October 20, 2014 Women’s health ... in Obstetrics & Gynecology of Columbus, Inc., A Division ... healthcare services to more than 100,000 patients annually. Dr. ... all ages and stages of a women’s life. She ... locations in Westerville and Dublin. , Dr. Murphy ...
Breaking Medicine News(10 mins):Health News:Best Cheap Hosting USA Has Recently Announced The Best Cheap Web Hosting Companies In 2014 2Health News:Rich Carlson and Marc Duey to Hold Workshop at CBI’s Specialty Pharmacy and Distribution Networks Conference 2Health News:Binge Drinking May Boost Blood Pressure in Young Men 2Health News:Binge Drinking May Boost Blood Pressure in Young Men 3Health News:Binge Drinking May Boost Blood Pressure in Young Men 4Health News:Worldwide Medical Market Forecasts to 2019 a New Research Report Added to ReportsnReports.com 2Health News:Worldwide Medical Market Forecasts to 2019 a New Research Report Added to ReportsnReports.com 3Health News:Worldwide Medical Market Forecasts to 2019 a New Research Report Added to ReportsnReports.com 4Health News:OhioHealth Welcomes New Women’s Health Specialist to MaternOhio Specialists in Obstetrics & Gynecology of Columbus, Inc. 2Health News:OhioHealth Welcomes New Women’s Health Specialist to MaternOhio Specialists in Obstetrics & Gynecology of Columbus, Inc. 3
... linked to osteoporosis without the need for surgery. Researchers ... the effect of a new treatment for vertebral fractures ... acrylic cement into the affected area - a procedure ... reported substantial improvements - less pain, better sleep and ...
... American doctors, there is no upper age limit to the ... for detecting bowel cancer and polyps before any symptoms develop. ... a faecal occult blood test (FOBT), sigmoidoscopy or colonoscopy - ... a family history of colon cancer. // ,But it ...
... advertisements of prescription drugs, statements about drug benefits ... quantify the medications' expected benefit; instead, they make ... Medical School, Hanover, New Hampshire. // ... is that the medicine is going to prevent ...
... described as a process of bewitchment, but scientists have found ... the eye. They say female chemical messengers known as pheromones ... attractive and beautiful women are less attractive than they actually ... given off by the body - are thought to affect ...
... may be at risk of developing dangerously high blood pressure ... 10% of pregnant women suffer from pre-eclampsia, a condition in ... death in the mother and the foetus. ,Women can try ... But drugs may put the foetus at risk, and sometimes ...
... will provide the most effective defence against bioterrorism. ... in understanding of diseases like anthrax and botulism, ... protect society against bioterrorist attacks - as well as ... for the Advancement of Science (AAAS) heard from Colonel ...
Cached Medicine News:Health News:The phenomenon of sexual attraction, 2Health News:Snoring could be a warning 2Health News:Biotechnology on the lead 2
(Date:10/22/2014)... Oct. 22, 2014  Rescheduling of hydrocodone combination ... the pain market, according to a new primary ... firm providing market research and consultation exclusively in ... - http://photos.prnewswire.com/prnh/20141021/153440 In ... hydrocodone combination products from Schedule III to Schedule ...
(Date:10/22/2014)... 2014  Charlene Vernak, RPh, of Vernak Farms Pharmacy ... was awarded the George Roentsch Scholarship by the Professional ... in Houston during PCCA,s International ... annually to an independent pharmacist and PCCA member who ... Roentsch , a well-known pharmacist in the compounding community. ...
(Date:10/22/2014)... 22, 2014 AVACEN Medical announced today that ... (k) OTC clearance by the U.S. Food and Drug ... marketed over the Internet for: the temporary relief ... minor strains and sprains . Logo - ... (MSRP $2495) is a sophisticated medical device incorporating over ...
Breaking Medicine Technology:Hydrocodone: Rescheduled, Repositioned & Reinvented 2Hydrocodone: Rescheduled, Repositioned & Reinvented 3PCCA Awards Charlene Vernak, RPh, the George Roentsch Scholarship 2AVACEN Medical Announces FDA Clearance of First Medical Device with Internal Game Mode 2
... , , ... it was awarded the 2009 Top Innovator Presentation Award,in ... on December 8th,at Dedham, MA. The award, which recognizes ... granted to Biovista who competed with,over 50 other privately ...
... , AMSTERDAM, December ... as Chief Executive Officer of its pharmaceutical,business. Gunnar Staaf ... Lilly & Company, in a range of commercial and ... plan to,spin-out its pharmaceutical business. The company intends to ...
Cached Medicine Technology:Biovista Inc. Named Top Innovator in Life Sciences 2Avantium Appoints Gunnar Staaf as CEO Pharma 2
... ARUP Laboratories is a national reference laboratory ... research and development. ARUP offers an extensive ... medical tests in clinical and anatomic pathology. ... Laboratories' clients include more than half of ...
... a national reference laboratory and a worldwide ... ARUP offers an extensive test menu of ... clinical and anatomic pathology. Owned by the ... more than half of the nation's university ...
... national reference laboratory and a worldwide leader ... offers an extensive test menu of highly ... and anatomic pathology. Owned by the University ... than half of the nation's university teaching ...
... Laboratories is a national reference laboratory and ... and development. ARUP offers an extensive test ... tests in clinical and anatomic pathology. Owned ... clients include more than half of the ...
Medicine Products: