This article was aimed to study the effect of resveratrol on steroid-induced diabetes mellitus (SDM) in rats and the related mechanism. SD rats were randomly divided into the normal control (NC) group, SDM group, low dosage of resveratrol (LDR) group, middle dosage of resveratrol (MDR) group, and high dosage of resveratrol (HDR) group. All groups were tested on the change of blood glucose, insulin resistance (IR), adiponectin and tumor necrosis factor-α(TNF-α) in serum. The rate of cellular apoptosis in pancreas islet and the expression of BCL2 in rats were also observed. The results showed that compared with the SDM group, the blood sugar, IR, TNF-αlevel, and the ratio of pancreas islet cellular apoptosis in serum of the MR group and HDR group were lower (P<0.05). The expres-sion of adiponectin and BCL2 protein were up-regulated in the MR group and HDR group (P<0.05). It was conclud-ed that resveratrol can protect rats against the injury from MDR and HDR of SDM. This protective effect is possibly mediated by down-regulating the blood glucose, IR, inflammation factors in pancreas islet, and up-regulation of BCL2 protein, in order to inhibit cellular apoptosis in pancreas islet.

[ ABSTRACT] AIM:To investigate the role of canonical transient receptor potential channel 1 ( TRPC1 ) in the epithelial-mesenchymal transition ( EMT) of human bronchial epithelial ( HBE) cells induced by transforming growth fac-tor-β1 (TGF-β1).METHODS:EMT of 16HBE cells induced by TGF-β1 were identified by microscopy, immunofluores-cence and Western blotting.Immunofluorescence, real-time PCR and Western blotting were applied to detect the mRNA and the protein expression of TRPC1 in the 16HBE cells.The influence of SKF96365 (a TRPC1 blocker) and siRNA-me-diated silencing of TRPC1 on the EMT of the 16HBE cells were detected by microscopy and Western blotting.RESULTS:Treatment with TGF-β1 induced significant morphological changes of the 16HBE cells.Exposure to TGF-β1 decreased the expression of E-cadherin protein (P<0.01) and increased the expression of α-SMA protein (P<0.05) in the 16HBE cells.Immunofluorescence observation indicated that TRPC1 expression in the 16HBE cells was positive.The expression of TRPC1 at mRNA and protein levels was significantly increased in the 16HBE cells after stimulation with TGF-β1 ( P<0.05).The morphological changes of the 16HBE cells induced by TGF-β1 were inhibited by SKF96365 and TRPC1 silen-cing compared with TGF-β1 group.The protein expression of E-cadherin andα-SMA induced by TGF-β1 were inhibited by SKF96365 and TRPC1 silencing compared with TGF-β1 group (P<0.05).CONCLUSION:TGF-β1 induces EMT with the mechanism of up-regulating TRPC1 in human bronchial epithelial cells.

Objective To explore the effect of infrared spectral analysis in analyzing of the chemical composition of renal staghorn calculi and its relationship with urinary tract infections. Methods From June 2014 to June 2016, the clinical data of 186 patients with renal staghorn calculi were collected. The stone composition were analyzed by infrared spectroscopy and traditional chemical titration, and the stones infection were detected by microbial analysis system. The relation between stones infection, urinary tract infection and stone composition were analyzed. Results The results of infrared spectroscopy and traditional chemical titration in detecting renal staghorn calculi ingredient had no significant differences (P>0.05). In 186 patients, 56 patients (30.11%) was in infected group, and 130 patients (69.89%)was in non-infected group. The abnormal urine rate, urinary tract infection rate, medistream urine positive infection rate and cotton swabs positive infection rate in infected group were was significantly higher than those in non-infected group: 73.21%(41/56) vs. 50.77%(66/130), 19.64%(11/56) vs. 3.85%(5/130), 50.00%(28/56) vs. 6.15%(8/130), 67.86%(38/56) vs. 8.46%(11/130), P<0.01. The carbonate apatite stones rate and six water magnesium ammonium phosphate rate in infected group were significantly higher than those in non-infected group: 21.43%(12/56) vs. 5.37%(7/130), 57.14%(32/56) vs. 2.31%(3/130), P<0.01. The calcium oxalate rate and uric acid rate in non-infected group were significantly higher than those in infected group:50.00%(65/130) vs. 5.36%(3/56), 24.62%(32/130) vs. 1.79%(1/56), P<0.01. Conclusions Analysis of staghorn calculi ingredient caused by urinary bacterial infection with infrared spectroscopy is simple, reliable and easy to operate. It is important for postoperative infection prevention.

AIM:To investigate the role of canonical transient receptor potential channel 1 ( TRPC1 ) in the migration of human bronchial epithelial cells (16HBE) induced by transforming growth factor-β1 ( TGF-β1).METH-ODS:Silencing of TRPC1 gene expression was performed by siRNA.The cell activity and apoptosis were measured by CCK-8 assay and flow cytometry, respectively.The migration and invasion abilities of the 16HBE cells were detected by wound-healing assay and Transwell assay.The protein expression of E-cadherin and vimentin was determined by Western blot.RESULTS:TGF-β1 treatment significantly enhanced the cell migration distance compared with control groups ( P<0.01 ) .The results of CCK-8 assay and flow cytometry indicated that there were no significant difference in proliferation and apoptosis among TRPC1 siRNA group, TGF-β1 group and control group (P>0.05).The results of wound-healing and Tr-answell assays showed that migration and invasion abilities in TRPC1 siRNA +TGF-β1 group were markedly suppressed compared with TGF-β1 group (P<0.01).The protein expression of E-cadherin and vimentin induced by TGF-β1 was in-hibited by TRPC1 silencing compared with TGF-β1 group (P<0.05).CONCLUSION:TRPC1 is involved in the migra-tion of human bronchial epithelial cells induced by TGF-β1 through regulating the protein expression of E-cadherin and vim-entin.

Objective To investigate risk factors for in-stent restenosis and reocclusion after coronary stent implantation in aged patients.Methods 131 patients diagnosed with chronic total occlusion and old myocardial infarction due to coronary stenosis were recruited in this retrospective study from Mar 2004 to May 2015.Patients were divided into 50 to 59 years old group (n=51),60 to 69 years old group (n=43),and 70 to 80 years old group (n=37) to study coronary lesion characteristics.In-stent restenosis and reocclusion were detected at 6,12,18,and 24 months after coronary stent implantation.Results Before coronary stent implantation,the incidence rate of type 2 diabetes was significantly increased with three increasing age groups:9.8％ at ages 50-59 group (n=5),18.6％ at ages 60-69 group (n=8),and 27.0％ at ages 70-80 group (n=10) (all-P＜0.01).The incidence rates of multiple coronary artery disease,long coronary lesions (＞20 mm),eccentric coronary lesions,serious angle of coronary lesions,irregular coronary lesions,proximal coronary curvature,moderate to severe calcified coronary lesions,coronary restenosis (90％-99％ or 100％),and complex bifurcation lesions were significantly elevated with three increasing age groups (P ＜0.01 or P ＜0.05).The ratios of patients with in-stent restenosis at 24 months after coronary stent implantation were significantly elevated with three increasing age groups:at 9.8％ (n=5),18.6％ (n=8),and 27.0％(n=10) for 90％ 99％ restenosis sub-group,and at 5.9％ (n=3),14.0％ (n=6) and 24.3％ (n=9) for 100％ restenosis sub-group,respectively (all P＜0.05 or P＜0.01)Conclusions Type 2 diabetes is an independent risk factor for complex coronary lesions in aged patients Complex coronary lesions,three or more stents,and long coronary stents may lead to ir-stent restenosis and reocclusion after coronary stent implantation in aged patients.

Objective To study the clinical value of anti-oxidative stress biomarkers for diagnosing in-stent restenosis and in-reocclusion after coronary stent implantation in aged patients.Methods A total of 72 advanced-aged patients with in-stent restenosis and in-stent reocclusion after coronary stent implantation were successively recruited in this retrospective study from February 2010 to November 2017.Changes in serum superoxide dismutase 3(SOD3),nitric oxide(NO),endothelial cell nitric oxide synthase(eNOS)and malondialdehyde(MDA)levels were measured.Results Serum 1evels of SOD3,NO and eNOS decreased and serum MDA levels were elevated in advanced-aged patients with in-stent restenosis.There were significant differences in serum levels of SOD3,NO,eNOS and MDA between the advanced-aged patients without in-stent restenosis and the advanced-aged patients with multivessel in-stent restenosis or reocclusion[(20.0±3.2) × 103U/L vs.(10.9±3.9) ×103U/L,(61.2±14.2)μmol/L vs.(28.3±17.2)μmol/L,(75.9±24.7)ng/L vs.(33.0±119.6)ng/L,(2.2±1.4)nmol/L vs.(11.7±3.1)nmol/L,respectively,P＜0.01].Patients with 50-69％ restenosis had higher serum levels of SOD3,NO and eNOS and lower levels of MDA than patients with 100％ restenosis[(21.3 ± 2.9) × 103 U/L vs.(10.3 ± 4.0) × 103 U/L,(59.7 ± 16.7) μmol/L vs.(38.3 ±16.3)μmol/L,(74.5±21.1)ng/L vs.(41.9±26.8)ng/L,(2.6±3.9 nmol/L)vs.(10.1±3.1)nmol/L,respectively,P ＜ 0.01].Patients with left ventricular ejection fraction (LVEF) ≥ 55 ％ had higher serum levels of SOD3,NO and eNOS and lower levels of MDA than patients with LVEF＜30％ [(21.0±4.1) × 103 U/L vs.(5.3±1.9) × 103 U/L,(60.1 ± 14.2)μmol/L vs.(29.0± 13.2)μmol/L,(74.7±25.1)ng/L vs.(39.3 ± 20.3) ng/L,(2.3 ± 1.5) nmol/L vs.(10.0 ± 3.9) nmol/L,respectively,P ＜0.01].Serum levels of SOD3,NO and eNOS were higher and MDA levels were lower in patients with New York Heart Association(NYHA)Class Ⅰ than in patients with NYHA Class Ⅳ[(22.1±3.5)×103U/L vs.(9.7±2.9) × 103 U/L,(62.9± 13.9)μmol/L vs.(24.9± 13.3)μmol/L,(76.7±26.7) ng/L vs.(41.9±21.5)ng/L,(2.7± 1.9)nmol/L vs.(8.7±3.8)nmol/L,respectively,P＜0.01].Conclusions Serum level changes of anti-oxidative stress biomarkers such as SOD3,NO and eNOS may have clinical value in diagnosing in-stent restenosis and in-reocclusion after coronary stent implantation in aged patients.

Objective To reveal pathogenesis and etiology in adrenal incidentaloma. Methods The clinical data of 116 patients with adrenal incidentaloma from January 1, 2015 to January 1, 2017 were retrospectively analyzed. Results In 116 patients with adrenal incidentaloma, 49 cases (42.2％) were male and 67 cases (57.7％) were female; there were 14 cases (12.1％) aged from 20 to 40, 63 cases (54.3％) aged from 40 to 60, and 39 cases (33.6％) > 60 years. Forty-three patients (37.1％) were found by health examination, 26 patients (22.4％) were found because of hypertension, 27 patients (23.3％) were found by CT detection because of other diseases, and 20 cases (17.2％ ) were found because of other reasons. The result of endocrine function examination showed that nonfunctioning adrenal tumor was in 56 cases (48.3％); functional adrenal tumor was in 44 cases (37.9％), among whom primary aldosteronism was in 27 cases, Cushing syndrome was in 10 cases, and pheochromocytoma was in 7 cases;nonfunctioning non- adenoma was in 16 cases (13.8％ ). Conclusions It is frequent that the adrenal incidentaloma is found by health examination. The patients with adrenal incidentaloma should examine the endocrine function and identify the benign or malignant. And if necessary, surgical treatment should be performed.

Objective:To identify the causative genes of sporadic thoracic aortic aneurysm or dissection (TAAD) and their correlation with clinical phenotype in the southern Chinese.Methods:We analyzed 11 core genes of TAAD probands without specific family history of 226 cases by next-generation sequencing technology, and performed sanger sequencing for their close relatives. Clinical data of each patient, including age of onset, syndromic phenotypes, involvement of aortic root, aortic maximum diameter and D-dimer were collected. And statistical software SPSS was used to evaluate the correlation between clinical phenotypes and gene mutations.Results:A total of 106 variants were detected in 226 probands with gene-positive frequency of 44.69%, consist of 16 pathogenic (P) variants, 18 likely pathogenic (LP) variants and 71 variants of uncertain significance (VUS). More than half of the mutations were from the non-syndromic TAAD, in which the FBN1 still was the most common causative gene. Earlier age of onset, an increase of women, larger diameter of aorta, Stanford B dissection and severe aortic regurgitation were likely to occur on carriers of P/LP, while thoracic aortic aneurysm occurs on carriers of VUS. Phenotype of both syndrome and dissection with aneurysm could increase the likelihood of carrying gene mutation, but D-dimer and involvement of aortic root couldn’t.Conclusion:Patients with sporadic aortic diseases in southern China have significant genetic heterogeneity and specific correlation between their clinical phenotype and gene mutation, especially in non-syndromic population. Earlier age of onset in carriers of FBN1 or ACTA2 genes, and larger maximum diameters of aorta in carrier of P/LP.

OBJECTIVE To op timize the i ntegrated technology of producing area processing and decoction pieces processing of Curcuma longa （hereinafter refer to “integrated technology ”）. METHODS The content of ethanol-soluble extract in C. longa was determined by hot leaching method ；the contents of curcumin ，demethoxycurcumin and bisdemethoxycurcumin were determined by high performance liquid chromatography. On the basis of identification of producing area processing technology ， Using overall desirability （OD） value of the contents of ethanol-soluble extract ， curcumin， demethoxycurcumin and bisdemethoxycurcumin as evaluation indexes ，moisture content ，slice thickness and drying temperature as factors ，the integrated technology of C. longa was optimized by single factor tests combined with central composite design-response surface method ，and the validation tests were conducted. At the same time ，prepared product was compared with traditional decoction pieces prepared according to 2020 edition of Chinese Pharmacopoeia （part Ⅰ）. RESULTS The best integrated technology was that the fresh C. longa was boiled in boiling water for 5 min，dried at 50 ℃ to 40％ water content ，cut into 2 mm thin slices ，and dried at 50 ℃ until moisture content not exceeding 15.0％. After validation ，The deviation between the average OD value （0.811 3，RSD＝2.13％） and the predicted value （0.848 1）of the contents of ethanol-soluble extract ，curcumin，demethoxycurcumin and bisdemethoxycurcumin was 4.34％. OD value of the contents of ethanol-soluble extract ，curcumin，demethoxycurcumin and bisdemethoxycurcumin in decoction pieces prepared by integrated technology were all higher than those prepared by traditional technology. CONCLUSIONS The process optimized in this study is simple ，stable and feasible.

OBJECTIVE: To explore genetic mutation types and their correlation with clinical phenotypes in Uighur patients with aortic disease in Kashgar (Xinjiang Uighur Autonomous Region, China). METHODS: We examined 37 pathogenic genes in 19 Uighur families with aortic diseases including Marfan syndrome from Kashgar using next generation sequencing, and the results were confirmed by Sanger sequence in the first relatives. RESULTS: This study included 19 families with aortic diseases, in whom a total of 23 variants were identified, and 11 (57.89%) probands had one or more variants. Among them, definite pathogenic mutation was detected in one patient (5.26%), variants of uncertain significance (VUS) were found in 8 (42.11%), and benign/likely benign variants were detected in 7 (36.84%). The 23 variants identified included one (5.26%) pathogenic variant, 14 (60.87%) VUS, and 8 (34.78%) benign/likely benign variants. The 14 VUS were analyzed by prediction with SIFT and Polyphen2 HDIV, which identified 6 (42.86%) variants as deleterious/possibly damaging; all the 8 benign/likely benign variants were predicted to be deleterious/possibly damaging. CONCLUSIONS We detected 23 genetic variants in the 19 Uighur families with aortic diseases, and 22 of these variants remain to be verified by more patient data in future studies.
Aortic Diseases ; China ; Genetic Predisposition to Disease/genetics* ; High-Throughput Nucleotide Sequencing ; Humans ; Mutation ; Phenotype