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  • Title: Cornelian cherry extract ameliorates osteoporosis associated with hypercholesterolemia in New Zealand rabbits.
    Author: Nowak B, Matuszewska A, Tomanik M, Filipiak J, Kucharska AZ, Piórecki N, Jędrzejuk D, Zduniak K, Trocha M, Bolanowski M, Szeląg A, Sozański T.
    Journal: Adv Clin Exp Med; 2020 Dec; 29(12):1389-1397. PubMed ID: 33389829.
    Abstract:
    BACKGROUND: Results of animal studies show that a high-cholesterol diet increases bone resorption and decreases bone formation, thus leading to osteoporosis. Previously, we reported on the beneficial influence of Cornelian cherry (Cornus mas L.) fruit on lipid profile in an animal model of diet-induced hipercholesterolemia. OBJECTIVES: To investigate the influence of Cornus mas L. extract and loganic acid (LA) on cholesterol-induced bone changes. MATERIAL AND METHODS: The study was conducted on 50 New Zealand rabbits. The animals were given either standard chow (group P) or the same standard chow enriched with 1% cholesterol (other groups). Additionally, the group CHOL+EX received Cornus mas L. extract, group CHOL+LA - loganic acid, and group CHOL+SIM - simvastatin. Serum concentration of bone turnover markers, bone mineral density (BMD) and bone micro-computed tomography (microCT) were assessed. RESULTS: In the CHOL group, a decrease in osteocalcin (OC) and an increase in C-terminated telopeptide of type I collagen (CTX) levels were detected (CHOL vs P 0.674 ±0.159 ng/mL vs 1.003 ±0.297 ng/mL and 10.049 ±1.276 ng/mL vs 7.721 ±1.187 ng/mL, respectively). The EX and LA ameliorated cholesterol-induced changes in serum OC (0.857 ±0.160 ng/mL and 1.103 ±0.356 ng/mL, respectively) and CTX (7.735 ±1.045 ng/mL and 8.128 ±1.106 ng/mL, respectively). There was a significant decrease in femoral BMD in CHOL group (0.429 ±0.11 g/cm² vs 0.449 ±0.020 g/cm²). The EX and LA ameliorated those changes (0.458 ±0.016 g/cm² and 0.449 ±0.021 g/cm², respectively). The microCT revealed increased bone volume ratio (BV/TV) and trabecular thickness (Tb.Th.) in the CHOL+EX group. CONCLUSIONS: Cornus mas L. inhibited bone resorption and stimulated bone formation, thereby preventing the development of cholesterol-induced osteoporosis.
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