机构:[1]Department of Nephrology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730[2]Department of Nephrology, Capital Medical University Affiliated with Beijing Anzhen Hospital, Beijing 100029临床科室肾内科首都医科大学附属安贞医院[3]Department of Nephrology, The Second Affiliated Hospital, School of Medicine Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
Hyperlipidemia is a key clinical feature in patients with nephrotic syndrome (NS) that is associated with the incidence of cardiovascular events. Recent studies have suggested that the disorders of triglycerides, gluconeogenesis and liver glucose metabolism are associated with the abnormal transcription of clock genes. However, changes to the circadian rhythm of blood lipids in NS require further exploration, and the effects of NS on the hepatic clock system remain to be elucidated. In the present study, the impaired diurnal rhythm of the hepatic core clock genes (BMAL1, CLOCK, CRY1, CRY2, PER1 and PER2) significantly induced circadian rhythm abnormalities in liver-specific clock-controlled genes (LXR, CYP7A1, SREBP-1, ABCA1, DEC1 and DEC2; all P<0.05), which were significantly associated with the abnormal diurnal rhythms of triglyceride, total cholesterol, aspartate aminotransferase and alanine aminotransferase (all P<0.05) in rats with Adriamycin-induced nephropathy. Furthermore, a protein-protein interaction network was identified. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses based on the human database was conducted to obtain signaling pathway and correlation prediction analyses of overall human clock and clock-controlled gene correlations. Strong correlations of the aforementioned clock genes were detected (avg. local clustering coefficient, 0.849) which suggested significant enrichment in circadian rhythm signaling. The present results indicated that damage to hepatic clock systems may impact blood lipid circadian rhythm disorders in NS, and offer a starting point for understanding the crosstalk between peripheral organs and peripheral clock systems.
基金:
National Natural Sciences Foundation of ChinaNational Natural Science Foundation of China [81100545]; Beijing Municipal Science and Technology CommissionBeijing Municipal Science & Technology Commission [D131100004713007, D09050704310901]; Peking Union Medical College Youth Fund [3332016012]
第一作者机构:[1]Department of Nephrology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730
通讯作者:
通讯机构:[1]Department of Nephrology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730[*1]Department of Nephrology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 1 Shuaifuyuan, Beijing 100730, P.R. China
推荐引用方式(GB/T 7714):
PEIPEI CHEN,RUIYU ZHANG,LIJUN MOU,et al.An impaired hepatic clock system effects lipid metabolism in rats with nephropathy[J].International journal of molecular medicine.2018,42(5):2720-2736.doi:10.3892/ijmm.2018.3833.
APA:
PEIPEI CHEN,RUIYU ZHANG,LIJUN MOU,XUEWANG LI,YAN QIN&XUEMEI LI.(2018).An impaired hepatic clock system effects lipid metabolism in rats with nephropathy.International journal of molecular medicine,42,(5)
MLA:
PEIPEI CHEN,et al."An impaired hepatic clock system effects lipid metabolism in rats with nephropathy".International journal of molecular medicine 42..5(2018):2720-2736