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Agricultural Doctor and Researcher Of Food Chemistry

Prof. Kouji Yamada

Faculty of Agriculture, Graduate School of Bioresrouce & Bioenvrionmental Sciences, Kyushu University, Professor of biological functions and biological chemistry, and food chemistry. Doctoral degree in agriculture science

Recent research include immune modulators in food, anti-abnormal cells factors in food, and factors regulating lipid metabolism in food ingredients.

Publications /"Handbook on development of anti-allergic food" (Science Forum), "Quick guide on understanding food components" (Maruzen), "Dietary and health information" (Moji Retro) , "Story f Seaweed" (NPO Research Institute of Fucoidan)

Strengthening The Natural Immunity In Human Body

The secret to health is maintaining the normal functions of the immune systems

Although virus or bacteria do not usually seriously affect our health, many infectious phenomenons will appear when our immunity becomes weakened. The degeneration of conditions of terminal abnormal cells patients or elderly patients are usually caused by infections. While some pathogen do not affect healthy people, they may have serious consequences to people with weakened immunity.

To maintain healthy status, we must work hard everyday to keep our natural immunity healthy, and be careful not to get sick. Also, as it is well known that the immune functions are not only affected by drugs, but also modulated by dietary nutrition. If we watch our diet everyday we can keep our immune system healthy.

What are the mechanisms of the dietary fibers that keep the intestinal tracts healthy?

Maintaining the intestinal environment is the key to maintaining immunity The human body produces antibodies and proteins called "cytokines", which are the key players in modulating the body's immune reactions. Dietary fiber is a food ingredient that regulates these types of commanding proteins.

Studies have shown that when feeding dietary fibers to experimental rats, the production of antibodies that cause allergies have been decreased. Conversely the amount of antibodies that inhibits allergic reactions have been increased. Therefore, dietary fibers are believed to be able to modulate immune reactions.

In addition, dietary fibers are probiotic food, and can increase the production of immunity related probiotics such as the lactic acid bacteria and bifidobacteria. Once the probiotics have been increased, they will inhibit the "bad" bacteria that produces harmful substances and stop their growths. Dietary fibers are also effective in preventing abnormal cells.

Dietary fibers the solution to modern problems – abnormal cell and obesity

Mushrooms, seaweeds and vegetables contain abundant dietary fibers. Polysaccharide that is hard to digest and low in caloric contents, is beneficial for weight control, and essential in preventing various modern diseases.

Prevention of abnormal cell

Dietary fibers not only prevent proliferation of bad pathogens, but also absorbs the abnormal cells substances secreted by the pathogens. These pathogens are mostly lipid-soluble. Dietary fibers will encapsulate these lipid-soluble substances and excrete out of the body via feces.

Prevention of metabolic syndrome

Greasy will result in over-absorption of fats Dietary fibers combine with the cholesterol and bile acid to prevent absorption of these substances. Bile acid is produced from cholesterol in the liver. The binding of bile acid with dietary fibers will lower the blood cholesterol and the key factor of obesity – blood lipids, lowering the risk of cerebral infarction or myocardial infarction.

Suitable for diabetic patients

Diabetes is a type of disease caused by increased concentrations of glucose-based blood sugars. The hard-to-digest dietary fibers will reduce the degradation of starch into glucose, and prevents the absorption of glucose. Dietary fibers can inhibit the increase of blood glucose level and prevent diabetes.

The basis of maintaining health is a balanced nutrition. We can obtain various nutrients including dietary fibers from a variety of foods and which could improve our immunity and prevent diseases.