Mars and Venus: Short- and long-term success of male to female kidney transplants

Jul 29, 2009

Female recipients of kidneys from deceased male donors demonstrate an increased risk of allograft failure in the first year after transplant, but show no increased risk after ten years, according to a study appearing in an upcoming issue of the Journal of the American Society of Nephrology (JASN). The study authors note that proteins on male donor cells may affect the short term success of kidney transplants in women.

Joseph Kim, MD (Toronto General Hospital and the University of Toronto, Canada) and John Gill, MD (St. Paul's Hospital and the University of British Columbia, Canada) studied information on all adult recipients of deceased-donor kidney transplants from 1990 through 2004 in the United States Renal Data System (a system that collects, analyzes, and distributes information about end-stage renal disease in the United States). 117,877 patients were followed for at least one year post transplant. Of these, 16,135 experienced kidney graft failure and 6,878 died within the year. 97,906 patients had functioning grafts at 1-year and were followed for up to 10 years post-transplant. Of these, 35,084 graft failures and 22,566 deaths occurred.

The results of this analysis indicate that H-Y antigens, derived from the male chromosome and not found in women, may elicit an immune response in women who receive transplants from deceased male donors. Compared with all other sex combinations, female recipients of male donor kidneys had a 12% increased risk for transplant failure at one year but no excess risk at 10 years. Women who received male donor kidneys also exhibited a similar increased risk of death in the first year, but no increased risk at 10 years.

Dr. Kim noted that there are numerous factors that contribute to the success of kidney transplants and that transplanting male kidneys into female recipients often produces excellent outcomes. According to the authors, many important factors should be taken into account when considering transplant options, and "future research should examine the potential mechanisms underlying the H-Y effect in order to better understand the specific role of minor histocompatibility antigens in determining kidney allograft outcomes."

More information: The article, entitled "H-Y Incompatibility Predicts Short-Term Outcomes for Recipients," is available online: doi 10.1681/ASN.2008101110 .

Source: American Society of Nephrology (news : web)

Explore further: Cold cash just keeps washing in from ALS challenge

add to favorites email to friend print save as pdf

Related Stories

Male kidneys for men only?

Jul 09, 2008

The gender of donor and recipient plays a larger role in kidney transplants than previously assumed. Female donor kidneys do not function as well in men – due to their smaller size. Women have a higher risk of rejecting ...

Recommended for you

Cold cash just keeps washing in from ALS challenge

Aug 28, 2014

In the couple of hours it took an official from the ALS Association to return a reporter's call for comment, the group's ubiquitous "ice bucket challenge" had brought in a few million more dollars.

Medtronic spends $350M on another European deal

Aug 27, 2014

U.S. medical device maker Medtronic is building stronger ties to Europe, a couple months after announcing a $42.9 billion acquisition that involves moving its main executive offices across the Atlantic, where it can get a ...

Mind over matter for people with disabilities

Aug 26, 2014

People with serious physical disabilities are unable to do the everyday things that most of us take for granted despite having the will – and the brainpower – to do so. This is changing thanks to European ...

Ukraine's former world's tallest man dies

Aug 25, 2014

Ukraine's tallest man, who briefly held the world record but gave it up to live as a recluse, has died due to complications from the condition that saw him never stop growing, local media reported Monday.

User comments : 0