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Science News for January 23, 2001


Clinical study confirms single gene change in chloroquine-resistant malaria

A clinical study has confirmed a single gene mutation as the cause of chloroquine-resistant malaria. The study developed a molecular marker that can diagnose individuals with chloroquine-resistant malaria, helping doctors select the best therapy and public health officials set country-wide treatment guidelines.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalNew England Journal of Medicine·DateJan 23, 2001

USC hair dye study

A study from the University of Southern California found that regular use of permanent hair dyes increases the risk of bladder cancer in women. Women who use permanent dyes at least once a month for one year or longer have twice the risk of bladder cancer as non-users, with increased risks observed in frequent users over 15 years.

SourceUniversity of Southern California·JournalInternational Journal of Cancer·DateJan 23, 2001