Imaizumi Yuki, Eguchi Kazuo, Murakami Takeshi, Arakawa Kimika, Tsuchihashi Takuya, Kario Kazuomi
Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University, Shimotsuke, Tochigi, Japan.
Munakata Ohshima Clinic, Munakata, Fukuoka, Japan.
J Clin Hypertens (Greenwich). 2016 Apr;18(4):315-21. doi: 10.1111/jch.12668. Epub 2015 Sep 22.
The authors tested the hypothesis that high salt intake is associated with hypertensive target organ damage (TOD) independent of blood pressure (BP), and oxidative stress is a modifying factor of this association. A total of 369 community-dwelling Japanese adults (mean age, 67.5 years; 56.6% women) were examined in this observational study. At the patients' annual health check-ups, urinary salt excretion (U-SALT), 8-hydroxy-2'-deoxyguanosine (8-OHdG), and albumin-creatinine ratio (UACR) were measured from first morning urine. U-SALT (β=0.14, P=.016) and 8-OHdG (β=0.13, P=.018) were both independently associated with logUACR. U-SALT was associated with TOD independent of BP level, and oxidative stress may be a modifying factor in the association between high salt intake and TOD. The elevation of 8-OHdG may be involved in the pathophysiology of TOD induced by salt intake.
高盐摄入与高血压靶器官损害(TOD)相关,且独立于血压(BP),氧化应激是这种关联的修饰因素。在这项观察性研究中,共检查了369名居住在社区的日本成年人(平均年龄67.5岁;女性占56.6%)。在患者的年度健康检查中,从晨尿中测量尿盐排泄量(U-SALT)、8-羟基-2'-脱氧鸟苷(8-OHdG)和白蛋白-肌酐比值(UACR)。U-SALT(β=0.14,P=0.016)和8-OHdG(β=0.13,P=0.018)均与logUACR独立相关。U-SALT与TOD相关,且独立于血压水平,氧化应激可能是高盐摄入与TOD之间关联的修饰因素。8-OHdG的升高可能参与了盐摄入诱导的TOD的病理生理过程。