1.The mechanism by which dagglitazine protects cardiovascular and renal function in patients with type 2 diabetes mellitus
Chinese Journal of Primary Medicine and Pharmacy 2021;28(4):504-509
Objective:To investigate the protective effect of dagglitazine on cardiovascular and renal function in patients with type 2 diabetes mellitus.Methods:A total of 200 patients with type 2 diabetes patients with poor blood glucose control who received treatment in Huxi Hospital Affiliated to Jining Medical University (Shanxian Central Hospital) from January to December 2019 were included in this study. They were randomly assigned to receive treatment with either metformin ( n = 100, control group) or dagglitazine ( n = 100, observation group) based on diet control and exercise therapy for 12 weeks. Before and after treatment, blood glucose, blood lipid, blood pressure, body mass index, cardiac function and renal function were compared between the control and observation groups. Adverse reactions were also monitored in each group. Results:After treatment, blood glucose, blood lipid, body mass index, cardiac function and renal function in each group were improved compared with before treatment (all P < 0.05). Fasting blood glucose, 2-h postprandial blood glucose, glycosylated hemoglobin, systolic blood pressure, diastolic blood pressure, total cholesterol, triglyceride, low density lipoprotein cholesterol, body mass index, left ventricular end diastolic diameter, serum creatinine, uric acid and cystatin C in the observation group were (6.48 ± 0.72) mmol/L, (8.03 ± 0.77) mmol/L, (6.16 ± 0.63)%, (126.03 ± 3.86) mmHg, (75.62 ± 2.87) mmHg, (3.83 ± 0.17) mmol/L, (2.21 ± 0.36) mmol/L, (2.34 ± 0.15) mmol/L, (23.03 ± 0.55) kg/m 2, (52.10 ± 2.13) mm, (39.97 ± 1.62) μmol/L, (237.17 ± 20.34) μmol/L, (0.64 ± 0.06) mg/L, respectively, which were significantly lower than (8.01 ± 0.84) mmol/L, (10.03 ± 0.90) mmol/L, (7.30 ± 0.72)%, (130.06 ± 4.79) mmHg, (79.60 ± 3.19) mmHg, (4.67 ± 0.37) mmol/L, (2.51 ± 0.57) mmol/L, (2.74 ± 0.19) mmol/L, (24.03 ± 0.60) kg/m 2, (57.22 ± 1.74) mm, (80.00 ± 6.88) μmol/L, (281.62 ± 40.52) μmol/L, (0.76 ± 0.09) mg/L, t = 13.850, 16.866, 11.933, 6.549, 9.263, 20.879, 4.469, 16.982, 12.410, 18.634, 10.626, 9.804, 18.876, all P < 0.001). After treatment, high density lipoprotein cholesterol, left ventricular ejection fraction, and the average distance walked by patients during the 6-min walk test in the observation group were (2.47 ± 0.15) mmol/L, (39.97 ± 1.62)%, (366.50 ± 17.74) m, which were significantly superior to those in the control group [(1.70 ± 0.20) mmol/L, (36.77 ± 1.21)%, (323.70 ± 12.48) m, t = 30.255, 16.435, 19.733, all P < 0.001). There was no significant difference in the incidence of adverse reactions between the two groups ( P > 0.05). Conclusion:Dagglitazine protects cardiovascular and renal function by reducing blood glucose, blood pressure, blood lipid, serum creatinine, serum uric acid levels and decreasing body mass index in patients with type 2 diabetes mellitus.
2.Surgical treatment for pulmonary carcinoid tumors: a single-center analysis of 62 patients
Feng YAO ; Jun ZHOU ; Chenxi ZHONG ; Yu YANG ; Heng ZHAO
Chinese Journal of Thoracic and Cardiovascular Surgery 2012;28(4):233-236
ObjectiveTo evaluate prognostic factors and the surgical results of pulmonary carcinoid tumors.Methods We retrospectively reviewed the medical records of 62 patients who were diagnosed as pulmonary carcinoid tumors between January 2000 and October 2010 at Department of Thoracic Surgery,Shanghai Chest Hospital.The following information was available for each of the 62 patients:age,sex,pathological type,and TNM stage.ResultsThere were no operative death.The 3-year and 5-year survival rates after surgery were 92.1% and 77.8%,respectively.Of the 62 patients,42 were diagnosed as typical carcinoid tumor,and among them,4 patients (8.3%) had lymph node metastases.Their 3-year and 5-year survival rates were 97.8% and 94.7%,respectively.The remaining 20 patients were diagnosed as atypical carcinoid tumor,and among them,6 patients (37.5%) had lymph node metastases.Their 3-year and 5-year survival rates were 84.4% and 58.8%,which were statistically significant compared with typical carcinoid tumor( P =0.0047 ).There was significant difference in survival rate between the patients with lymph node metastases and the patients without lymph node metastases (P =0.0048).CondusionThe main risk factors affecting survival rate of those patients who were diagnosed as pulmonary carcinoid tumors were pathological types and lymph node metastases.
3.Study on methylation status of RASSFIA gene promoter and exon 1 in cervical cancer cell lines
Shanshan WANG ; Ning WANG ; Xiao YU ; Chenxi YANG ; Liping YAN ; Yankui WANG
China Oncology 2013;(10):777-783
Background and purpose:Loss or altered expression of Ras association domain family 1A gene (RASSF1A) through DNA methylation has been associated with the pathogenesis of a variety of cancers, which suggests the tumor suppressor function of this gene. This study aimed to explore the effect of DNA methyltransferase inhibitor 5-Aza-2’deoxycytidine (5-Aza-dc) on demethylation and expression of RASSF1A in cervical cancer cell lines. Methods:HPV positive cervical cancer cell lines HeLa and Caski, HPV negative cell lines HT-3 and C-33A were treated with two different concentration of 5-Aza-dc (5 μmol/L, 10 μmol/L). MSP (methylation-specific PCR) and Bisulfite genomic sequencing PCR (BGS) combined with TA clone were used to investigate methylation status of RASSF1A gene promoter and exon 1 before and after treatment of 5-Aza-dc. RASSF1A gene mRNA expression was detected by RT-PCR. Results:Two HPV positive cell lines showed hypomethylated RASSF1A promoters and expressed RASSF1A mRNA, and after treatment with 5-Aza-dc, the mRNA expression of RASSF1A did not change significantly (FHeLa=3.003, P=0.125; FCaski=0.045, P=0.956). Two HPV negative cervical cancer cell lines showed hypermethylation status of RASSF1A promoter and silenced RASSF1A. After treatment with 5-Aza-dc, demethylation occurred in the promoter region of RASSF1A gene, which subsequently induced re-expression of this gene in HT-3 and C-33A. The F test (FHT-3=18.002, P=0.03;FC-33A=17.179, P=0.03) and LSD-t test (P<0.05) demonstrated that significant difference in the expression of RASSF1A was found upon two different concentrations drug treatment.Conclusion:The methylation status of promoter and exon 1 of RASSFIA gene in HPV positive and HPV negative cervical cancer cell lines are different. The promoter hypermethylation is correlated with RASSF1A gene expression in HPV negative cervical cancer cell line HT-3 and C-33A, and plays a key role in RASSF1A silencing. 5-Aza-dc may effectively reverse the methylation status of RASSFIA gene promoter in cervical cancer HT-3 and C-33A cells and reactivate gene expression silenced by aberrant hypermethylation in a dose-dependent manner within certain extent.
4.Transarterial chemoembolization refractory: current research progress
Journal of Interventional Radiology 2017;26(12):1063-1067
Transarterial chemoembolization (TACE) is a standard treatment for Barcelona Clinic Liver Cancer stage B hepatocellular carcinoma (HCC),and TACE has already been widely accepted in clinical practice.Recently,more and more researches have indicated that TACE,as a palliative therapeutic regimen,carries certain defects,e.g.after several times of TACE treatment the HCC lesions become poorly-controlled.Therefore,some scholars put forward the concept of "TACE refractory".This paper aims to make a further discussion on the concept of TACE refractory and its treatment.
5.Preparation of freeze-dried long-circulation oridonin liposomes and their pharmacokinetics in rats.
Hu LIN ; Chenxi QU ; Yijie YU ; Yining TANG ; Xiaoyi SUN
Journal of Zhejiang University. Medical sciences 2013;42(6):638-643
OBJECTIVETo prepare freeze-dried long-circulation oridonin liposomes with optimized parameters.
METHODSEthanol injection method followed by freeze-drying was used to prepare the liposomes. Sephadex column was used to purify liposomes. Effects of formulation factors on entrapment efficiency of long-circulation oridonin liposomes were studied. The particle size, distribution and in vitro release were determined. Pharmacokinetics of oridonin liposomes in rats was determined by HPLC and the pharmacokinetic parameters calculated by Kinetica(TM) software were compared with conventional oridonin liposomes and solution.
RESULTSThe optimized lipid formulation for long-circulation liposomes was composed of soy lecithin, cholesterol and DSPE-PEG 2000 with a ratio of 1:0.5:1.8(w/w). The ratio of drug to lipid was 1:6. Freeze-drying protectant was a mixture of glucose and mannitol (3:1). The entrapment efficiency (EE) of long-circulation oridonin liposomes was about 65%. The particle size of liposomes after hydrolyzation was 164 nm with good DPI. The liposomes showed a sustained drug release in vitro. Intravenous injected oridonin fitted with two-compartment pharmacokinetic model. The MRT of long-circulation liposomes was 2 times and 6 times and AUC was about 2 times and 3 times of conventional liposomes and oridonin solution, respectively.
CONCLUSIONFreeze-dried liposomes with high EE have been obtained by the proposed approach. This long-circulation liposomes extend oridonin half time and significantly increase AUC in rats.
Animals ; Delayed-Action Preparations ; Diterpenes, Kaurane ; administration & dosage ; pharmacokinetics ; Drug Stability ; Freeze Drying ; Liposomes ; administration & dosage ; pharmacokinetics ; Male ; Rats ; Rats, Sprague-Dawley ; Tissue Distribution
6.Clinical research of modified Danggui-Sini decoction combined with Mecobalamin in treatment of diabetic peripheral neuropathy
International Journal of Traditional Chinese Medicine 2017;39(11):981-984
Objective To investigate the clinical effect of modified Danggui-Sini decoction combined with Mecobalamin on diabetic peripheral neuropathy. Methods A total of 104 patients with diabetic peripheral neuropathy from January 2015 -2016 year in December in our hospital patients were randomly divided into study group and control group, each of 52 patients. The control group was given Mecobalamin 0.5 mg/times. The study group was given modified Danggui-Sini decoction plus the intervention of the observation group. Four weeks were a course of treatment. The clinical effect rates, the incidence of adverse events, change of common peroneal nerve conduction velocity, hemorheological indexes and advanced glycation end products (AGEs) were compared between the two groups before and after treatment. Results The total effective rate of the study group was 96.2%, which was significantly higher than 82.7% of the control group (χ2=4.981, P<0.05). During treatment, the incidence of adverse events was 5.8% in the study group, and the incidence of adverse events in the control group was 3.9%. There was no significant difference in the incidence of adverse reactions between two groups(P<0.05).After treatment,the motor nerve conduction velocity(49.1 ± 4.5 m/s vs.42.8 ± 4.3 m/s) and sensory nerve conduction velocity (40.1 ± 3.7 m/s vs. 36.5 ± 3.9 m/s) in the study group were significantly higher than those in the control group (t=2.732, 2.723, P<0.05). The whole blood viscosity [(3.72 ± 0.58)mPa?s vs.(4.55 ± 0.47)mPa?s],plasma viscosity[(1.03 ± 0.12)mPa?s vs.(1.78 ± 0.09)mPa?s],erythrocyte blood pressure(31.23% ± 3.19% vs.37.33% ± 4.12%),AGEs(58.44 ± 4.87 ng/L vs.68.03 ± 4.98 ng/L)in the observation group were significantly lower than those in the control group (t=2.704, -2.682, -2.737, -2.856, P<0.05). Conclusions The modified Danggui-Sini decoction combined with Mecobalamin on diabetic peripheral neuropathy can improve peripheral nerve conduction velocity, improve curative effect, showed fewer adverse events.
7.Genetic study of an X-linked agammaglobulinemia pedigree caused by an BTK mutation.
Chenxi WEI ; Rujing YANG ; Xiaogeng YUAN ; Shihui YU ; Jianping QIN ; Xinxian TIAN ; Min ZHANG
Chinese Journal of Medical Genetics 2021;38(11):1081-1086
OBJECTIVE:
To explore the genetic pathogenesis of X-linked agammaglobulinemia in two patients for clinical diagnosis and family counseling.
METHODS:
Data was collected from the patients' family including clinical information, blood immunoglobulin level, as well as classification and subgrouping of B lymphocytes. Gene mutations were screened by whole exome sequencing (WES) through next-generation sequencing (NGS), the result was verified with Sanger sequencing.
RESULTS:
A BTK c.1627T>C (p.Ser543Pro) variant was found in the pedigree. The phenotype and variant have co-segregated in the pedigree. The variant was not found in population database. The variant has affected in the kinase domain which contained no benign variants and is harmful as predicted through bioinformatic analysis.
CONCLUSION
BTK c.1627T>C (p.Ser543Pro) is a pathogenic variant contributing to X-linked agammaglobulinemia in this pedigree. Above finding has provided reproduction guidance for this family.
Agammaglobulinaemia Tyrosine Kinase/genetics*
;
Agammaglobulinemia/genetics*
;
DNA Mutational Analysis
;
Genetic Diseases, X-Linked
;
Humans
;
Mutation
;
Pedigree
8.Effect of spearmint oil on lipopolysaccharide induced emphysema-like changes and expression of matrix metalloproteinase-9.
Junbo LIU ; Yan WANG ; Fadi TANG ; Chenxi YU ; Mengshan HUANG ; Xiaojing ZHAO ; Youfa ZHU
China Journal of Chinese Materia Medica 2011;36(8):1054-1059
OBJECTIVETo investigate the effect of spearmint oil on emphysema-like changes and the expression of tumor necrosis factor-alpha (TNF-alpha), interleukin-1beta(IL-1beta), matrix metalloproteinase-9 (MMP-9) and tissue inhibitor of metalloproteinase-1 (TIMP-9) in lipopolysaccharide (LPS) treated rats.
METHODEmphysematous changes model was induced by intratracheal instillation of LPS once a week for up to 8 weeks in rats. Rats were divided into control, dexamethasone (0.3 mg x kg(-1)), and spearmint oil (10, 30,100 mg x kg(-1)) groups. Each group was treated with saline, dexamethasone, and spearmint of oil respectively for 4 weeks. Then total and different white blood cell counts in bronchoalveolar lavage fluid(BALF) were carried out. The pathologic changes of lung tissue such as alveolar structure, airway inflammation, and goblet cell metaplasia were observed by HE and AB-PAS staining. Expression of TNF-alpha, IL-1beta, TIMP-1 and MMP-9 were measured.
RESULTBoth spearmint and dexamethasone decreased the destruction of pulmonary alveolus. The total and different white blood cell counts in BALF including neutrophile and lymphocyte of spearmint oil 100 mg x kg(-1) and dexamethasone group were significantly reduced, and the goblet cell metaplasia was also inhibited. Dexamethasone had inhibitory effect on the expression of TNF-alpha, IL-1beta, TIMP-1 and MMP-9. Spearmint oil 30, 100 mg x kg(-1) significantly reduced TNF-alpha and IL-1beta respectively. Spearmint oil 10, 30 and 100 mg x kg(-1) had no effect on the expression of TIMP-1, but could decrease the expression of MMP-9 significantly in lung tissues.
CONCLUSIONSpearmint oil has protective effect on rats with emphysematous changes, since it improves alveolar destruction, pulmonary inflammation, and goblet cell metaplasia. The mechanism may include reducing TNF-alpha, IL-1beta content and inhibiting overexpression of matrix metalloproteinase-9 in lung tissues.
Animals ; Azo Compounds ; pharmacology ; Bronchoalveolar Lavage Fluid ; cytology ; Goblet Cells ; drug effects ; Interleukin-1beta ; drug effects ; metabolism ; Leukocytes ; drug effects ; metabolism ; Lipopolysaccharides ; Lymphocytes ; drug effects ; metabolism ; Matrix Metalloproteinase 9 ; drug effects ; metabolism ; Mentha spicata ; chemistry ; Metaplasia ; Monocytes ; drug effects ; metabolism ; Neutrophils ; drug effects ; metabolism ; Phytotherapy ; Plant Oils ; therapeutic use ; Pulmonary Emphysema ; chemically induced ; drug therapy ; enzymology ; pathology ; Rats ; Respiratory System ; drug effects ; pathology ; Tissue Inhibitor of Metalloproteinase-1 ; drug effects ; metabolism ; Tumor Necrosis Factor-alpha ; drug effects ; metabolism
9.Electrophysiological characteristics and cause analysis of ridge related reentry after catheter ablation of atrial fibrillation
Chenxi JIANG ; Changsheng MA ; Jianzeng DONG ; Xin DU ; Deyong LONG ; Ronghui YU ; Ribo TANG ; Caihua SANG ; Xueyuan GUO ; Jungang NIE ; Jiahui WU
Chinese Journal of Interventional Cardiology 2014;(5):273-277
Objective To identify the electrophysiological charateristics and cause of ridge gap related reentry after MI ablation in atrial ifbrillation patients. Methods Activation and entrainment mapping was performed in 82 redo cases for OAT recurrence in whom MI was ablated during the index produre. Once ridge gap related reentry was conifrmed, detailed mapping was performed in MI and ridge region. In addition, in 36 cases undergoing MI ablation and fulfilling criterion for bidirectional block, differential pacing was repeated at the ridge to identify a ridge gap. Results Out of 82 redo cases for OAT recurrence in whom MI was ablated during the index produre, 7 (8.5%) was found to be ridge gap related reentry. TCL was (247.9±19.2) ms, and the left atrial endocardial activation time was (145.4±17.7) ms, accounting for (58.5±3.2)%of TCL. However, wide double potential was recorded along the previous ablated MI line where PPI was (34.3±6.6) ms longer than TCL, while PPI was signiifcantly shorter at the ridge[PPI-TCL (11.4±3.9) ms, P<0.001]. Tachycardia was terminated at the ridge in 6 cases and at the corresponding site in coronary sinus in 1 case. No recurrence was found during follow-up for (11.1±4.5) months. In addition, in 36 patients undergoing MI ablation in whom criterion of bi-directional block was fuliflled, conduction gap located at the ridge was found in 5 (13.9%) cases. Conclusions MI ridge gap related reentry is a distinctive OAT, in which the ridge was used as the critical isthmus, whereas the previous ablated MI line is not part of the reentry. MI pseudo-block due to the ridge gap may lead to this type of recurrent tachycardia.
10.The management of cardiac tamponade complications during catheter ablation of atrial ifbrillation ;using different periprocedure anticoagulation strategies
Caihua SANG ; Jianzeng DONG ; Deyong LONG ; Ronghui YU ; Ribo TANG ; Rong BAI ; Nian LIU ; Ke CHEN ; Chenxi JIANG ; Man NING ; Songnan LI ; Yingwei CHEN ; Changsheng MA
Chinese Journal of Interventional Cardiology 2014;(4):210-214
Objective To observe the management and outcome of the cardiac tamponade patients during the ablation procedure using two different anticoagulation strategies. Methods All the patients developed tamponade during the ablation procedure were enrolled from January 2007 to December 2013 in our center. In group 1, warfarin was discontinued 3 to 5 days before the procedure and low molecular weight heparin (LMWH) was administered subcutaneously until ablation procedure day. In group 2, warfarin was not discontinued and the international normalized ratio INR was to maintained between 2 and 3. Results There were 27 patients (0.6%) developed cardiac tamponade out of a total 4487 patients received ablation in our center. The baseline clinical characteristics including age, left atrium, the heparin dose and ACT during the procedure had no signiifcant difference between the groups, except that the INR was higher in the group 2 (0.9±0.1 vs. 2.3±0.5, P<0.001). There was no signiifcant difference in the amount of pericardiac drainage between the two groups (365±222 ml vs. 506±300 ml, P=0.137). Two patients in group 1 patient (11.1%) and 1 in group 2 (11.1%) needed emergency surgical repair (P>0.999). The median hospital day was similar in the 2 groups [(9.6±3.3) d vs. (12.1±4.5) d, P=0.167]. There were no other serious complications and no hospital death. Conclusions Non-discontinuation of warfarin during peri-procedural catheter ablation of AF is not signiifcantly different to bridging with LMWH in the management and outcome of acute cardiac tamponade.