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KMID : 1134820060350091200
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Journal of the Korean Society of Food Science and Nutrition
2006 Volume.35 No. 9 p.1200 ~ p.1206
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The Relation between Net Rate of Endogenous Noncarbonic Acid Production from Diet Potassium and Protein Intakes and Bone Mineral Density in Korean Women
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Bae Yun-Jung
Choi Mi-Kyeong
Kim Mi-Hyun
Kim Eun-Young
Lee Joo-Yeon
Sung Chung-Ja
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Abstract
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The purpose of this study was to investigate the relation between NEAP (net rate of endogenous noncarbonic acid production) from dietary potassium and protein intakes, and bone mineral density and urinary deoxypyridinoline (DPD) in Korean women. The subjects were 276 women aged 18~81, and they were asked about general characteristics and nutrient intake using 24-hr recall method. Also, their bone mineral density of spine and femoral neck were measured using DEXA. Urinary DPD analysis was done in 106 postmenopausal women. The average energy, protein and potassium intake were 1503.0 kcal, 57.7 g and 60.8 mEq, respectively. Mean NEAP [54.5×{protein intake (g)/potassium intake (mEq)}-10.2] was 44.6. NEAP showed a significantly negative correlation with spine bone mineral density of the subjects after controlling for confounding factors (age, height and weight) (p＜0.05). The lowest quartile of protein intake had the highest spine bone mineral density after controlling for confounding factors (p＜0.05). There was no significant correlation between urinary DPD and calculated NEAP. These results provided positive relation between a ratio of lower protein to higher potassium dietary intake and bone mineral density.
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KEYWORD
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NEAP, potassium, protein, bone mineral density, deoxypyridinoline, Korean women
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