Short-Term High-Salt Diet Increases Corin Level to Regulate the Salt–Water Balance in Humans and Rodents
Short-Term High-Salt Diet Increases Corin Level to Regulate the Salt–Water Balance in Humans and Rodents
复制标题
短期高盐饮食会增加 Corin 水平,以调节人类和啮齿动物的盐水平衡
DOI:
10.1093/ajh/hpx148
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发表时间:
2018-01
期刊:
影响因子:
--
通讯作者:
Mu Jianjun
中科院分区:
文献类型:
--
作者:
Zhang Jiao;Mu Jianjun
BACKGROUND
Dietary sodium and potassium affect the fluctuation in blood pressure (BP) and renal function. Corin, with its enzymatic activity to convert pro-atrial natriuretic peptide (pro-ANP) to biologically active ANP, regulates BP, cardiac, and renal functions. We investigated whether corin expression responds to a high-salt (HS) diet to regulate salt and water balance.
METHODS
Forty-two volunteers followed 3 sequential diets for 7 days each: a low-salt (LS) diet (3.0 g/day NaCl), a HS diet (18.0 g/day NaCl), followed by an HS diet with K+ supplementation (HS + K+) (18.0 g/day NaCl and 4.5 g/day KCl).
RESULTS
Corin level was higher with the HS diet than the LS and HS + K+ diets and was positively correlated with systolic BP (SBP) and 24-hour urinary Na+ and microalbumin (U-mALB) excretion. In rodents, serum and renal levels of corin were transiently increased with the HS diet and were decreased if the HS diet was continued for up to 7 days. HS loading increased SBP, 24-hour urinary Na+, U-mALB excretion, and the expression of proprotein convertase subtilisin/kexin-6 (PCSK6), a corin activator. Knockdown of PCSK6 or corin in high salt-treated M1-cortical collecting duct (M1-CCD) cells increased the expression of aquaporin 2 (AQP2) and β-epithelial Na+ channel (β-ENaC).
CONCLUSIONS
Short-term HS may induce the PCSK6-corin-ANP-AQP2/β-ENaC pathway in the kidney. Enhanced serum corin level in humans and rodents is positively correlated with HS-induced SBP and 24-hour urinary Na+ and U-mALB excretion, which suggests that corin is involved in the salt-water balance in response to HS intake.
CLINICAL TRIALS REGISTRATION
Public Trials Registry Number NCT02915315.
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影响因子:
8.2
作者:
Engelen, Lian;Soedamah-Muthu, Sabita S.;Geleijnse, Johanna M.;Toeller, Monika;Chaturvedi, Nish;Fuller, John H.;Schalkwijk, Casper G.;Stehouwer, Coen D. A.
通讯作者:
Stehouwer, Coen D. A.
影响因子:
1.6
作者:
LIU fuqiang
通讯作者:
LIU fuqiang
DOI:
10.1042/cs20160398
发表时间:
2016-09-01
期刊:
Clinical science (London, England : 1979)
影响因子:
--
作者:
Dong L;Wang H;Dong N;Zhang C;Xue B;Wu Q
通讯作者:
Wu Q
影响因子:
6.9
作者:
Peng, Hao;Zhang, Qiu;Jin, Jianhua
通讯作者:
Jin, Jianhua
影响因子:
3.2
作者:
Peng, Hao;Zhang, Qiu;Zhang, Yonghong
通讯作者:
Zhang, Yonghong