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Proteins from garden pea may help fight high blood pressure and kidney disease

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Extracts from garden peas could be used as a food additive or supplement to

reduce high blood pressure and kidney disease, claim scientists.

 

By Richard Alleyne, Science Correspondent

Last Updated: 9:39PM GMT 22 Mar 2009

http://www.telegraph.co.uk/health/healthnews/5032707/Proteins-from-garden-pea-ma\

y-help-fight-high-blood-pressure-and-kidney-disease.html

 

Peas have long been recognised as a superfood containing protein, dietary fibre,

and vitamins wrapped in a low-fat, cholesterol-free package.

But new research shows for the first time that concentrating extracts from the

pea can have dramatic affect on blood pressure and chronic kidney disease (CKD).

 

" In people with high blood pressure, our protein could potentially delay or

prevent the onset of kidney damage, " said study author Dr Rotimi Aluko, a food

chemist at the University of Manitoba in Winnipeg, Canada.

 

" In people who already have kidney disease, our protein may help them maintain

normal blood pressure levels so they can live longer. "

 

The study, which will be presented at the American Chemical Society's

conference, is the first reporting that a natural food product can relieve

symptoms of kidney disease, the scientists said.

 

High blood pressure, or hypertension, is a major risk factor for CKD, a

condition that has been affecting an increasing number of people around the

world.

 

CKD is difficult to treat, and may progress to end-stage kidney disease that

requires kidney dialysis or a kidney transplant.

 

Working with colleague Dr Harold Aukema, Dr Aluko purified a mixture of small

proteins - called pea protein hydrolysate - from the yellow garden pea.

 

The researchers fed small daily doses of the protein mixture to laboratory rats

with kidney disease.

 

At the end of the eight-week-long study period, the protein-fed rats with kidney

disease showed a 20 per cent drop in blood pressure when compared to diseased

rats on a normal diet, the researchers say.

 

" This is significant because a majority of CKD patients actually die from

cardiovascular complications that arise from the high blood pressure associated

with kidney malfunction, " Dr Aluko said.

 

 

 

 

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