Mutation in human gene helps protect against fatal malaria

April 21, 2008

New research suggests that not everyone who is bitten by a malaria-infected mosquito develops life threatening health problems according to scientists at the University of Toronto.

Malaria causes an estimated 500 million clinical cases worldwide with symptoms ranging from headache, high fevers and nausea to more than 1 million deaths annually.

“Malaria has had a major effect on the evolution of our species. Mutations occurring in our genome that have helped us survive malaria have been selected for over tens of 1,000s of years of co-existing with this parasite. Understanding how these mutations make us more resistant to malaria can help us design innovative new strategies to prevent or treat severe malaria in places such as sub-Saharan Africa,” says researcher Kevin Kain, a Professor out of the Department of Medicine at U of T and one of the lead researchers on the project. “Our research shows that people who have an enzyme deficiency or those who carry the gene trait for this deficiency may be protected from severe and fatal malaria.”

The team headed by Dr. Kain and which included researchers from McGill University found that a deficiency in an enzyme called pyruvate kinase, which is required for energy production in the body, provides protection against malaria infection.

The findings could lead to the design of new novel therapies to treat and prevent severe and fatal malaria through enhancing the body’s protective pathways instead of inundating the body with drugs. The study was funded by the Canadian Institutes of Health Research (CIHR) Team grant in malaria.

The study findings were published in the April 24th issue of New England Journal of Medicine.

Source: University of Toronto


print this article email this article download pdf blog this article bookmark this article     Stumble it Digg this share on Facebook retweet share on Reddit add to delicious
Rate this story - 3 /5 (3 votes)

Rank Filter

Move the slider to adjust rank threshold, so that you can hide some of the comments.


Display comments: newest first

  • Sepp - Apr 22, 2008
    • Rank: not rated yet
    This reminds me of a post on a health related networking site:

    Stopping Convulsions from Malaria and Drink Sweeteners

    http://healthfree...ost:4161

    "The Malaria parasite releases an enzyme called Tyrosine Kinase which as far as I understand gobbles up the body's supply of Tyrosine and raises the levels of phenylalanine to levels dangerous enough to cause convulsions and comas..."

    Reading that post gives an idea of the research that has already been done ... but then it seems that today, if research does not push the genetic meme, it isn't worth anything.

    Why not look into the huge amount of research that exists on biochemical interactions?

    You got it - the money is elsewhere...

April 21, 2008 all stories

Comments: 1

3 /5 (3 votes)
  • Stumble this up

  • Digg this

  • share this

  • hide
  • Related Stories

  • Got zinc? New zinc research suggests novel therapeutic targets
    created Jul 30, 2009 | popularity not rated yet | comments 0
  • Give children iron supplements: They don't increase malaria risk
    created Jul 08, 2009 | popularity not rated yet | comments 0
  • Tryptophan deficiency may underlie quinine side effects
    created Jun 26, 2009 | popularity not rated yet | comments 0
  • Starting antiretroviral therapy earlier yields better clinical outcomes
    created Jun 09, 2009 | popularity not rated yet | comments 0
  • Malaria immunity trigger found for multiple mosquito species
    created Mar 13, 2009 | popularity not rated yet | comments 0



  • hide
  • Relevant PhysicsForums posts

Other News

Think again about keeping little ones so squeaky clean

Medicine & Health / Research

created 31 minutes ago | popularity 5 / 5 (1) | comments 0

A new Northwestern University study suggests that American parents should ease up on antibacterial soap and perhaps allow their little ones a romp or two in the mud --- or at least a much better acquaintance with everyday ...


Hops compound may prevent prostate cancer

Medicine & Health / Cancer

created 30 minutes ago | popularity 4 / 5 (1) | comments 0

The natural compound xanthohumol blocks the effects of the male hormone testosterone, therefore aiding in the prevention of prostate cancer.


Grinch likely depressed, suffers from lack of love, joy, expert says (w/ Video)

Medicine & Health / Psychology & Psychiatry

created 1hour ago | popularity 5 / 5 (2) | comments 0

(PhysOrg.com) -- Being irritable, grumpy and seeking social isolation are also hallmarks of depression, and could explain the Grinch's disdain for the Who -- the tall and the small -- his mistreatment of his dog Max and, ...


Possible ovarian cancer treatment target identified

Medicine & Health / Cancer

created 1hour ago | popularity not rated yet | comments 0

A multi-institutional study has identified a potential personalized treatment target for the most common form of ovarian cancer. In the December 8 issue of Cancer Cell, the research team describes finding that a gene called ...


Scientists reveal key structure from ebola virus

Medicine & Health / Research

created 2 hours ago | popularity not rated yet | comments 0

Scientists at The Scripps Research Institute have determined the structure of a critical protein from the Ebola virus, which, though rare, is one of the deadliest viruses on the planet killing between 50 and 90 percent of ...