Objective To observe the subfoveal choroidal thickness (SFCT) in eyes of patients with diabetic macular edema (DME).Methods Twenty patients (32 eyes) with DME were enrolled in this crosssectional observational study.The patients included 12 males and eight females,with a mean age of (47.3± 10.2) years.All the patients were examined documenting best corrected visual acuity (BCVA),spectraldomain optical coherence tomography (OCT) and ophthalmological examination.According to OCT DME morphology,samples are divided into diffuse macular edema,cystoid macular edema,serous retinal detachment and hard exudate groups.The SFCT was measured by a Cirrus HD-OCT with enhanced depth imaging (EDI) and was compared with the average SFCT (286.84 ± 28.80) μm of same age group.Correlation between SFCT and age,diopter,diabetic duration,fasting blood glucose,BCVA and central retinal thickness were analyzed by Pearson Analysis.SFCT of different DME types were analyzed by ANOVA Analysis.Results The mean SFCT of 32 eyes was (223.81±43.74) μm (ranging from 120.50 to 361.50 μm),which was lower by 63.03 μm (95％ confidence interval,-78.80 to-47.26 μm,P＜0.01)from normal SFCT.SFCT was independent of age (r=0.124),diopter (r=0.277),diabetic duration (r=0.286),fasting blood glucose (r=0.408),BCVA (r=0.087),and central retinal thickness (r=0.036).There was no significant difference of SFCT between different DME types (F =0.042,P ＞ 0.05).Conclusion SFCT is thinner in eyes with DME as compared to normal eyes of the same age.

A series of novel tetrahydrocarboline derivatives was designed and synthesized in order to discover more potent peroxisome proliferator-activated receptor (PPAR) alpha/gamma dual regulators. The structures of these compounds were confirmed by 1H NMR and HR-MS; their PPAR-regulating activities were evaluated in vitro. Compounds 6h, 6n, 6p and 6q exhibited more potent PPARalpha agonistic activities than the control drug WY14643, while compounds 60, 6g, 6i and 6q exhibited more potent PPARgamma agonistic activities than the control drug rosiglitazone. Compound 6q was discovered as a potent PPARalpha/gamma dual agonist and deserves further investigation.

Objective To investigate the serum levels of heat shock protein 70 (HSP70) in uremic patients with different dialysis ages.Methods Ninety-two maintenance haemodialysis patients were divided into short-term group(from three months to 2 years,n =32),median-term group(from 2 to 5 years,n =37) and longterm group(more than 5 years,n =23) according to different dialysis ages.Enzyme-linked immunosorbent assay (ELISA) was used to measure the serum levels of HSP70 before and after haemodialysis in each group.Results The semm levels of HSP70 had significant difference both in median-term group and long-term group before and after haemodialysis(median-term group:(54.94 + 39.21) μg/L vs (69.72 + 39.90) μg/L,t =-2.068,P =0.047 ;long-term group:(46.17 +34.63) μg/L vs (74.07 ±41.11) μg/L,t =-2.814,P =0.010).But there was no statistics difference on the serum levels of HSP70 before and after haemodialysis in the short-term group((70.42 ±38.30) μg/L vs (62.89 ±43.01) μg/L,t =0.870,P =0.390).Conclnsion Haemodialysis patients with more stress protection ability are likely to obtain long term survival.

Gene therapy refers to the introduction of normal genes into human target cells for correcting gene defects or exerting therapeutic action,and thus achieves the goal of treatment of disease.Bone marrow stromal cells (BMSCs) are stem cells that possess self-renewal and multi-directional differentiation potential and easy to amplify in vitro,and they also express many therapeutic exogenous genes in vitro or in vivo.So BMSCs have been regarded as an ideal target cell of cell and gene therapy.This article reviews the biological characteristic of BMSCs,some commonly used gene therapy vectors and their applications in gene therapy of central nervous system diseases.

Objective To detect the methylation status of the promoter of BNIP3 gene in gastric cancer cell lines MKN1,and to explore the mecha?nism of DNA methylation regulating the expression of BNIP3 in gastric cancer cells. Methods The methylation status of BNIP3 promoter was de?tected by bisulfate sequencing PCR. Reverse transcription PCR was used to evaluate BNIP3 mRNA expression. MKN1 cells were treated with 5?Aza?2′?deoxycytidine(5?Aza?CdR),and after the treatment,the methylation status and BNIP3 mRNA expression were observed. Chromatin immuno?precipitation(ChIP)was used to determine the combination of BNIP3 with DNA methyltransferase 1(DNMT1). Results The promoter DNA of BNIP3 in MKN1 cells was in state of hypermethylation. Compared to the control group,methylation status and mRNA expression of BNIP3 in the drug treatment group(the 5?Aza?CdR concentration was 10μmol/L)were reversed,which showed statistical differences(P<0.05). 5?Aza?CdR inhibited the combination of BNIP3 with DNMT1. Conclusion CpG island methylation regulates BNIP3 gene expression in MKN1 cells. DNA methylation is related with the binding between the promoter of BNIP3 and DNMT1.

Objective To explore the feasibility of transauricular arterial access for hepatic artery catheterization in rabbits.Methods Thirty healthy New Zealand White rabbits were randomly divided into 5 groups ( n =6 in each group):transauricular vein injection group , transarterial infusion group , transarterial lipiodol group , transarterial gelfoam group and transhepatic puncture group .Every rabbit was prescribed elemene (20 mg/kg) via different access in 6 minutes. All the rabbits of hepatic artery catheterization were divided into two groups according to their serial number :transauricular arterial access group (odd, n=9) and transfemoral arterial access group (even, n=9).The arterial access could be changed each other due to the failure of one technique .The catheterization time , success rate and survival rate were compared between the two groups .Venous blood collection via auricular vein or jugular vein for pharmacokinetics was performed in each rabbit .Results Technical success rates of hepatic artery catheterization were 0% ( 0/9 ) and 88.9%( 16/18 ) for transauricular and transfemoral arterial access , respectively . The time duration of transauricular and transfemoral access groups was 28.4 ±13.6 and 33.9 ±19.6 minutes, respectively (P>0.05).The survival rates of the transauricular and transfemoral access groups were 100%(9/9) and 88.9%(16/18), respectively.Blood samples were collected via auricular vein in 4 and jugular vein in 23 rabbits.Conclusions Hepatic artery catheterization via transauricular arterial access is technically not feasible , while transfemoral access is simple and suitable in rabbits .Blood collection via the jugular vein may be a more reliable and valuable method for pharmacokinetic studies in rabbits .

OBJECTIVE To investigate the current status of nosocomial infection management in grass roots cosmetologic medical institutions,and to develop the countermeasures for improving the management quality.METHODS An observatory study was conducted in 72 grass roots cosmetologic medical institutions,using the evaluation criteria based on the requirements of related regulations.RESULTS Problems were found in different extent in all of the grass roots cosmetologic medical institutions.The qualification rate was only 38.9%.The existing risk factors might occur nosocomial infections.CONCLUSIONS To bring the special attention to management of nosocomial infections,strengthen training of medical staffs and improve supervision level of health administration department are the key issues of management of nosocomial infection in grass roots cosmetologic medical institutions.

Objective:To evaluate the efficacy of electroacupuncture(EA)in enhancing the recovery of gastrointestinal function after laparoscopic cholecystectomy(LC). Methods:Randomized controlled trials(RCTs)of EA treatment in the postoperative period of patients undergoing LC were searched.Studies were obtained from Excerpta Medica Database(EMBASE),PubMed,Cochrane Library,Wanfang Academic Journal Full-text Database(Wanfang),China National Knowledge Infrastructure(CNKI),China Biology Medicine Disc(CBM),and Chongqing VIP Database(CQVIP)from inception to December 10th,2022.RevMan 5.4.1 was used to perform the meta-analysis.The Cochrane tool was used to assess the risk of bias.Mean difference(MD)and confidence interval(CI)were used for statistical descriptions. Results:A total of 7 studies were included in the meta-analysis.The meta-analysis found that the EA group had a shorter time to the first flatus[P<0.001,MD=-5.32,95%CI(-6.42,-4.21)],bowel movement recovery[P<0.001,MD=-6.22,95%CI(-8.11,-4.34)],and the first defecation(P<0.001,MD=-11.08,95%CI(-15.78,-6.39)]than the control group. Conclusion:EA treatments can promote the recovery of gastrointestinal function after LC.

A series of novel tetrahydrocarboline derivatives was designed and synthesized in order to discover more potent peroxisome proliferator-activated receptor (PPAR) alpha/gamma dual regulators. The structures of these compounds were confirmed by 1H NMR and HR-MS; their PPAR-regulating activities were evaluated in vitro. Compounds 6h, 6n, 6p and 6q exhibited more potent PPARalpha agonistic activities than the control drug WY14643, while compounds 60, 6g, 6i and 6q exhibited more potent PPARgamma agonistic activities than the control drug rosiglitazone. Compound 6q was discovered as a potent PPARalpha/gamma dual agonist and deserves further investigation.
Animals ; Carbolines ; chemical synthesis ; chemistry ; pharmacology ; Cells, Cultured ; Drug Design ; Hypoglycemic Agents ; chemical synthesis ; chemistry ; pharmacology ; Molecular Structure ; PPAR alpha ; agonists ; PPAR gamma ; agonists ; Peroxisome Proliferator-Activated Receptors ; agonists ; Pyrimidines ; metabolism ; Structure-Activity Relationship ; Thiazolidinediones ; metabolism ; Transfection

Objective To evaluate the clinical value of multiplex ligation-dependent probe amplification (MLPA) technique used in karyotype analysis of chorionic villi from missed abortion. Methods Feb 2008 to Oct 2008, 91 patients with missed abortion diagnosed by hormonal measurement, type B ultrasound and physical exam matched with 20 normal pregnant women undergoing artificial abortion were enrolled in this study. Chorionic villi was obtained by suction dilation and curettage in aseptic condition, then those villi was cultured and analyzed by traditional cytogenetic karyotyping method, in the mean time, the DNA extracted from villi was detected by MLPA. The results of chromosomal G-banding of chorionic villi were compared between two methods. Results The diagnostic concordance of MLPA and traditional karyotyping was observed in 92% (84/91) cases, there were 84 cases in the case group with diagnostic concordance by traditional karyotyping and MLPA except 7 cases of euploidy could not be detected by MLPA. The 84 cases included 40 normal karyotype,29 trisomy of euchromosome, 1 double trisomy of euchromosome, 10 monosomy X , 1 monosomy X combined with trisomy of euchromosome, 2 chimaera of X chromosome, 1 structural abnormity of euchromosome. Among 7 cases with discordance diagnosis, 2 cases with trisomy and 5 cases with tetrasomy of euchromosome were identified in traditional karyotyping, however, they were all diagnosed with normal disomy by MLPA. Of 20 villi from normal pregnancy, two methods got the consistent results. Conclusion The MLPA was rapid and efficacy method used for analyzing aneuploids in chorionic villi.