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- 검색키워드
- 저자 : Marcus L. Elam (검색결과 2 건)
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Marcus L. Elam,Sarah A. Johnson,Shirin Hooshmand,Rafaela G. Feresin,Mark E. Payton,Jennifer Gu,Bahram H. Arjmandi 한국식품영양과학회 2015 Journal of medicinal food Vol.18 No.3
Menopause leads to an increased risk for osteoporosis in women. Although drug therapies exist, increasing numbers of people prefer alternative therapies such as dietary supplements, for example, calcium, vitamin D, and collagen hydrolysates for the prevention and treatment of osteoporosis. We have previously shown that a 3-month intervention using a calcium-collagen chelate (CC) dietary supplement was efficacious in improving bone mineral density (BMD) and blood biomarkers of bone turnover in osteopenic postmenopausal women. This study reports the long-term efficacy of CC in reducing bone loss in postmenopausal women with osteopenia. Thirty-nine women were randomly assigned to one of two groups: 5 g of CC containing 500 mg of elemental calcium and 200 IU vitamin D (1,25-dihydroxyvitamin D3) or control (500 mg of calcium and 200 IU vitamin D) daily for 12 months. Total body, lumbar, and hip BMD were evaluated at baseline, 6 and 12 months using dual-energy X-ray absorptiometry. Blood was collected at baseline, 6 and 12 months to assess levels of blood biomarkers of bone turnover. Intent-to-treat (ITT) analysis was performed using repeated measures analysis of variance pairwise comparisons and multivariate analysis to assess time and group interactions. The loss of whole body BMD in women taking CC was substantially lower than that of the control group at 12 months in those who completed the study and the ITT analysis, respectively (CC: - 1.33% and - 0.33% vs. control: - 3.75% and - 2.17%; P = .026, P = .035). The CC group had significantly reduced levels of sclerostin and tartrate-resistant acid phosphatase isoform 5b (TRAP5b) (P < .05), and higher bone-specific alkaline phosphatase/TRAP5b ratio (P < .05) than control at 6 months. These results support the use of CC in reducing bone loss in osteopenic postmenopausal women.
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Bahram H. Arjmandi,Lauren T. Ormsbee,Marcus L. Elam,Sara C. Campbell,Nader Rahnama,Mark E. Payton,Ken Brummel-Smith,Bruce P. Daggy 한국식품영양과학회 2014 Journal of medicinal food Vol.17 No.6
The extracts of Scutellaria baicalensis and Acacia catechu have been shown in previous studies to alleviate joint discomfort, reduce stiffness, and improve mobility by reducing the production of proinflammatory molecules over long periods of supplementation. The acute effects of intake of these extracts have not yet been investigated. Thus, we carried out a 1 week clinical trial to examine the extent to which UP446—a natural proprietary blend of S. baicalensis and A. catechu (UP446)—decreases knee joint pain, mobility, and biomarkers of inflammation in comparison to naproxen. Seventy-nine men and women (40–90 years old) diagnosed as having mild to moderate osteoarthritis (OA) consumed either 500 mg/day of the UP446 supplement or 440mg/day of naproxen for 1 week in a double-blind randomized control trial. Pain, knee range of motion (ROM), and overall physical activity were evaluated at the start and at the end of treatment. Fasting blood was collected to determine serum interleukins 1b and 6, tumor necrosis factor-a, C-reactive protein, and hyaluronic acid. The UP446 group experienced a significant decrease in perceived pain (P = .009) time dependently. Stiffness was significantly reduced by both treatments (P= .002 UP446, P = .008 naproxen). Significant increases in mean ROM over time (P = .04) were found in the UP446 group. These findings suggest that UP446 is effective in reducing the physical symptoms associated with knee OA.
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