J Bone Metab 2014;21:189-194 http://dx.doi.org/10.11005/jbm.2014.21.3.189 pISSN 2287-6375 eISSN 2287-7029
Original Article
High Dietary Sodium Intake Assessed by 24-hour Urine Specimen Increase Urinary Calcium Excretion and Bone Resorption Marker Sun Mi Park1, Jaehwan Jee2, Ji Young Joung1, Yoon Young Cho1, Seo Young Sohn1, Sang-Man Jin1, Kyu Yeon Hur1, Jae Hyeon Kim1, Sun Wook Kim1, Jae Hoon Chung1, Moon Kyu Lee1, Yong-Ki Min1 Division of Endocrinology and Metabolism, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul; 2 Health Promotion Center, Samsung Medical Center, Seoul, Korea 1
Corresponding author Yong-Ki Min Division of Endocrinology and Metabolism, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnamgu, Seoul 135-710, Korea Tel: +82-2-3410-3432 Fax: +82-2-3410-3849 E-mail: [email protected] Received: May 22, 2014 Revised: June 29, 2014 Accepted: July 3, 2014 No potential conflict of interest relevant to this article was reported.
Background: The average dietary sodium intake of Koreans is 2.6 times higher than the World Health Organization’s recommended amount. The effect of a diet high in sodium on the skeletal system, especially osteoporosis, has not previously been examined in Korean postmenopausal women with low bone mass. We assessed the daily sodium intake, and determined the impact of sodium intake on urinary calcium excretion and bone resorption marker. Methods: A retrospective review of medical records was performed for 86 postmenopausal subjects who were initially diagnosed with osteopenia or osteoporosis at the health promotion center. They were subsequently referred to the Division of Endocrinology and Metabolism between 2010 and 2013. All subjects completed a modified food frequency questionnaire. Twenty-four hour urine collection for sodium, calcium and creatinine excretion, and serum C-terminal telopeptides of type I collagen (CTX-I) were also obtained. Results: The average amount of daily sodium and calcium intake were 3,466 mg and 813 mg, respectively. Average dietary sodium intake and 24-hour urinary sodium excretion showed significant positive linear correlation (r= 0.29, P=0.006). There was also a significant positive linear correlation between 24-hour urine sodium and calcium excretion (r=0.42, P
Original Article
High Dietary Sodium Intake Assessed by 24-hour Urine Specimen Increase Urinary Calcium Excretion and Bone Resorption Marker Sun Mi Park1, Jaehwan Jee2, Ji Young Joung1, Yoon Young Cho1, Seo Young Sohn1, Sang-Man Jin1, Kyu Yeon Hur1, Jae Hyeon Kim1, Sun Wook Kim1, Jae Hoon Chung1, Moon Kyu Lee1, Yong-Ki Min1 Division of Endocrinology and Metabolism, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul; 2 Health Promotion Center, Samsung Medical Center, Seoul, Korea 1
Corresponding author Yong-Ki Min Division of Endocrinology and Metabolism, Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnamgu, Seoul 135-710, Korea Tel: +82-2-3410-3432 Fax: +82-2-3410-3849 E-mail: [email protected] Received: May 22, 2014 Revised: June 29, 2014 Accepted: July 3, 2014 No potential conflict of interest relevant to this article was reported.
Background: The average dietary sodium intake of Koreans is 2.6 times higher than the World Health Organization’s recommended amount. The effect of a diet high in sodium on the skeletal system, especially osteoporosis, has not previously been examined in Korean postmenopausal women with low bone mass. We assessed the daily sodium intake, and determined the impact of sodium intake on urinary calcium excretion and bone resorption marker. Methods: A retrospective review of medical records was performed for 86 postmenopausal subjects who were initially diagnosed with osteopenia or osteoporosis at the health promotion center. They were subsequently referred to the Division of Endocrinology and Metabolism between 2010 and 2013. All subjects completed a modified food frequency questionnaire. Twenty-four hour urine collection for sodium, calcium and creatinine excretion, and serum C-terminal telopeptides of type I collagen (CTX-I) were also obtained. Results: The average amount of daily sodium and calcium intake were 3,466 mg and 813 mg, respectively. Average dietary sodium intake and 24-hour urinary sodium excretion showed significant positive linear correlation (r= 0.29, P=0.006). There was also a significant positive linear correlation between 24-hour urine sodium and calcium excretion (r=0.42, P
