Elevation of Morning Blood Pressure in Sodium Resistant Subjects by High Sodium Diet
- Authors
- Rhee, Moo-Yong; Lim, Chi-Yeon; Shin, Sung-Joon; Oh, Sang-Woo; Park, Yong-Soon; Kim, Jong-Wook; Park, Hye-Kyoung; Kim, Cho-il; Park, Cheol-Young; Kim, Sun-Woong
- Issue Date
- Apr-2013
- Publisher
- KOREAN ACAD MEDICAL SCIENCES
- Keywords
- Sodium; Hypertension; Sodium Resistance
- Citation
- JOURNAL OF KOREAN MEDICAL SCIENCE, v.28, no.4, pp.555 - 563
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF KOREAN MEDICAL SCIENCE
- Volume
- 28
- Number
- 4
- Start Page
- 555
- End Page
- 563
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/163092
- DOI
- 10.3346/jkms.2013.28.4.555
- ISSN
- 1011-8934
- Abstract
- The present study evaluated the response of blood pressure (BP) by dietary sodium in sodium resistant (SR) subjects. One hundred one subjects (mean age, 46.0 yr; 31 hypertensives) were admitted and given low sodium-dietary approaches to stop hypertension (DASH) diet (LSD, 100 mM NaCl/day) for 7 days and high sodium-DASH diet (HSD, 300 mM NaCl/day) for the following 7 days. On the last day of each diet, 24 hr ambulatory BP was measured. Morning systolic BP (SBP) and diastolic BP (DBP) were elevated after HSD in all subjects (P < 0.01), but daytime SBP and DBP were not changed (P > 0.05). In hypertensive subjects, morning DBP elevation was greater than daytime DBP elevation (P = 0.036), although both DBPs were significantly elevated after HSD. The augmented elevation of morning DBP in hypertensive subjects was contributed by the absolute elevation of morning DBP (P = 0.032) and relative elevation to daytime DBP (P = 0.005) in sodium resistant (SR) subjects, but not by sodium sensitive subjects. Although there was no absolute elevation, SR subjects with normotension showed a relative elevation of morning SBP compared to daytime SBP change after HSD (P = 0.009). The present study demonstrates an absolute and relative elevation of morning BP in SR subjects by HSD.
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