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How nice, brown rice: Study shows rice bran lowers blood pressure in rats

gest that certain fractions of rice bran can lower levels of unhealthy LDL cholesterol.

The Tohoku study adds antihypertensive activity to the picture, along with a host of other biochemical markers that track blood glucose (implicated in diabetes), lipid profile, kidney function and the harmful effects of free radicals.

For example, high levels of a marker called 8-OHdG indicate biological stress and genetic damage due to oxygen-based free radicals. The researchers found that rice bran, which contains various forms of the antioxidant Vitamin E, markedly lowered the rats?levels of the peptide 8-OHdG.

“Oxidative stress plays an important role in the initiation and progression of cardiovascular diseases,?explained lead author Ardiansyah [editor note: name is correct as written, there is no first name], a Ph.D. candidate at the university’s School of Agricultural Science.

He added one more element to the research that is new: using enzymes to clip components of rice bran from its cell walls, rather than extracting a fraction with ethanol. “I think enzymatic treatment will be more suitable for applications if we’d like to use [rice bran as] functional food,?he said.

The researchers?next step is to elucidate the mechanisms by which specific components of rice bran inhibit ACE and lower cholesterol.


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Source:American Chemical Society


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