Abstract
The aim of this study was to evaluate effects of mulberry cultivars extracts on the collagen content of the connective tissues in ovariectomized rats. From day 2 until day 37 after ovariectomy, Sprague-Dawley female rats were randomly assigned to the following groups : sham-operated rats (Sham), ovariectomized control rats (OVX-control), and ovariectomized rats supplemented with ethyl alcohol extracts from various kinds of Tajikistan mulberry, Korea mulberry and China mulberry at 200 mg/kg bw/day, respectively. The mulberry extracts were orally administrated at 1 mL per day. The OVX rats were significantly heavier than the sham-operated rats were at all time points, but supplementation with the mulberry extracts tended to gain weight less than OVX-control did. The ovariectomy caused a decreasing in the levels of collagen content in bone and cartilage tissues. However, supplementation with mulberry extracts prevented the decrease in the collagen level in bone and cartilage tissues. Therefore, it may be used to possibly improve the quality of life in menopausal women.
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