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Study finds gene markers for drug-resistant malaria in Cambodia


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Scientists have discovered genetic markers in malaria parasites linked to resistance to the key anti-malarial medicine piperaquine, and say their work could help doctors and health officials monitor and limit the spread of such resistance.

In research published in the Lancet Infectious Diseases journal, the team also said a simple test using blood taken from a finger pinprick could show whether a malaria patient has parasites with the genetic markers - allowing doctors to prescribe an alternative treatment.

Resistance to piperaquine recently emerged in Cambodia and has led to the complete failure of malaria treatment there. This and other spreading areas of drug-resistance are threatening global efforts to eliminate the mosquito-borne disease.

Piperaquine is a powerful drug which is used in many parts of the world in combination with another anti-malarial drug called artemisinin.

 

Resistance to artemisinin emerged around seven years ago in Southeast Asia, but until recently the combination of the two drugs had successfully killed the malaria parasites there. Now, however, the emergence of piperaquine resistance in Cambodia has led to treatment failing altogether.

"These malaria parasites are now resistant to both drugs, and since they are no longer being killed, resistance to both drugs will spread," said Roberto Amato, who co-led the research at Britain's Sanger Institute.

According to the World Health Organization, an estimated 200 million people worldwide were infected with malaria in 2015, and nearly half a million people died from the disease. The vast majority of those killed by it are children under five.

 

read more http://www.foxnews.com/health/2016/11/04/study-finds-gene-markers-for-drug-resistant-malaria-in-cambodia.html

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