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Vaccine shown to be effective against high blood pressure

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A new high blood pressure vaccine can reduce ambulatory daytime blood pressure, according to a study.
The vaccine, called CYT006-AngQb and based on a virus-like particle, immunises against the effects of the chemical angiotensin II.

Angiotensin II is a blood chemical that causes vasoconstriction and increased blood pressure.

In the 14-week trial, 72 patients were randomly selected to either receive a placebo, or injected with either 100ug or 300ug doses of the vaccine in weeks 0, four and 12.

In the 300 ug group, there was a reduction in of 9.0 and 4.0 mm/Hg for mean ambulatory systolic and diastolic blood pressure compared with placebo.

It also reduced the early morning blood pressure surge by 13mm/Hg compared with placebo.

Lancet (2008) 371: 821-827
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