Genetics Influence Blood Preassure medication

The study published in Jan. 23 issue of the Journal of the American Medical Association  is a thumps up for those interested towards personalized medicine, a small but important step.

A person’s genetic make-up seems to influence how he or she reacts to certain hypertension medications. The new study focused on the NPPA (atrial natriuretic precursor A) gene, which is involved in forming atrial natriuretic polypeptide, which acts as a diuretic.

n all, 38,462 people with hypertension underwent genotyping [genetic testing] and were randomly assigned to receive a diuretic (chlorthalidone) or one of the following three drugs: a calcium channel blocker (amlodipine); an angiotensin converting enzyme inhibitor (lisinopril); or an alpha-blocker (doxazosin).

people with hypertension and two different NPPA genotypes (known as NPPA G664A and NPPA T2238C) responded differently to different medications.

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