APPLICATIONS OF XYLAN IN PREPARING MEDICAMENT OR FOOD ITEM FOR PREVENTING OR TREATING OSTEOPOROSIS

The present invention relates to the prevention of osteoporosis and specifically relates to applications of xylan (polyxylose) in preparing a medicament or food item for preventing or treating osteoporosis. The present invention proves by utilizing high-purity xylan in animal experimentation that xylan significantly improves bone metabolism, increases blood vitamin D, PINP, and BALP levels, reduces blood CTXI and urine hydroxyproline levels, and reduces urinary calcium loss, thus providing the effects of inhibiting bone resorption and promoting bone formation. Compared with animals having cellulose, lignin, pectin, fructan, glucomannan intakes or having no dietary fiber intake, animals having a xylan intake have higher bone mass and bone density and better bone biomechanical properties. Xylan is suitable for further development into the medicament or food item for preventing or treating osteoporosis. La présente invention concerne la prévention de l'ostéoporose et concerne spécifiquement des applications de x