RESUMO
Objective: To explore the relationship between the incidences of percutaneous coronary intervention (PCI) complicated depression and serum levels of brain-derived neurotrophic factor (BDNF), ghrelin in coronary artery disease (CAD) patients. Methods: A total of 90 CAD patients after PCI were enrolled. According to Hamilton depression (HAMD) scale, the patients were divided into 2 groups: Depression group, n=40 and Non-depression group, n=50. Serum levels of BDNF and Ghrelin were examined by ELISA and compared between 2 groups. Results: Compared with Non-depression group, Depression group had reduced serum levels of BDNF and Ghrelin, both P<0.05. As increased severity of depression, BDNF and Ghrelin were decreased accordingly; serum levels of BDNF and Ghrelin were negatively related to HAMD score (r=-0.711, P<0.05 and r=-0.711, P<0.05). Conclusion: Serum levels of BDNF and Ghrelin have an early warning effect on depression in CAD patients after PCI, it may reflect the severity of depression at certain degree in relevant patients.
RESUMO
OBJECTIVE@#To investigate the effect of the peroxisome proliferator activated receptor-gamma (PPAR-gamma) agonist troglitazone on TGF-beta(1) and fibronectin (Fn) expression in human peritoneal mesothelial cells (HPMCs).@*METHODS@#HPMCs were cultured from human omentum by an enzyme digestion method, growing in medium containing 30 mmol/L D-glucose. TGF-beta(1) and Fn expression were measured in HPMCs in the presence and absence of 15 micromol/L troglitazone. The mRNA expressions of PPAR-gamma,TGF-beta(1) and Fn were determined by semi-quantification reverse transcriptive PCR (RT-PCR). The protein of TGF-beta(1) was determined by enzyme-linked immunosorbent assay (ELISA) and proteins of PPAR-gamma and Fn were determined by Western blot.@*RESULTS@#The mRNA and protein expression of TGF-beta(1) and Fn were significantly increased in HPMCs stimulated with 30 mmol/L D-glucose compared with the control group with F12 media (P<0.01). Obvious decrease of TGF-beta(1) was found in troglitazone(15 micromol/L) treated group compared with group stimulated with 30 mmol/L D-glucose (P<0.05). Exposure of HPMCs to troglitazone reduced the Fn secretion (P<0.05).@*CONCLUSION@#Troglitazone reduced the expression of TGF-beta(1) in HPMCs stimulated by 30mmol/L D-glucose, and reduced Fn production. PPAR-gamma agonists may have a specific role in ameliorating the course of progressive peritoneal fibrosis under long-term peritoneal dialysis states.