Comparison of 14-day bismuth-containing quadruple therapy for helicobacter pylori eradication with different antibiotic combinations in Liaoning area: A prospective study / 中国实用内科杂志

OBJECTIVE: To compare the eradication rate, adverse reactions and compliance of the two 14-day bismuth-containing quadruple therapies in Liaoning Province as the first-line Helicobacter pylori(HP) eradication programs. METHODS: We collected222 eligible HP-infected patients who were admitted to the First Affiliated Hospital of China Medical University from March 2017 to October 2018 and treated with either of the following two programs:(1) EBLA group: esomeprazole(20 mg, twice a day), bismuth(200 mg, twice a day), levofloxacin(200 mg, twice a day) and amoxicillin(1 g, twice a day), 111 cases in total;(2) EBCA group:esomeprazole(20 mg, twice a day), bismuth(200 mg, twice a day), clarithromycin(500 mg, twice a day) and amoxicillin(1 g, twice a day), 111 cases in total. The patients in both groups were given medicines for 14 days, and the 13 C breath test was performed after4 weeks of withdrawal. RESULTS: The eradication rate of EBLA group was 87.34%(95%CI 80.9%-93.9%), and that of EBCA group was 83.33%(95%CI 76%-90.7%).There was no significant difference between the two groups(P=0.413). The incidence of adverse reactions was 10.8% in EBLA group and 26.13% in EBCA group. The difference was statistically significant(P=0.003). The compliance of patients in EBLA group was 99.10%, and that of EBCA group was 98.20%. The difference was not statistically significant(P=0.561).CONCLUSION: Both EBLA program and EBCA program can achieve good eradication rate and compliance in Liaoning province. The incidence of adverse reactions in EBLA group is lower than that in EBCA group, which is the preferred first-line HP eradication program.

Long-term outcomes and factors for predicting ventricular arrhythmia in patients with catecholaminergic polymorphic ventricular tachycardia / 中国当代儿科杂志

<p><b>OBJECTIVE</b>To evaluate factors for predicting ventricular arrhythmia, the clinical effect of drugs on patients with catecholaminergic polymorphic ventricular tachycardia (CPVT), and their long-term outcomes.</p><p><b>METHODS</b>Six patients diagnosed with CPVT underwent a series of electrocardiograms and 24-hour Holter monitoring. β-blockers were recommended for all patients, while some patients were also prescribed propafenone and 1 patient underwent catheter-based renal sympathetic denervation (RDN). The characteristics of electrocardiogram, arrhythmia and long-term outcomes were monitored.</p><p><b>RESULTS</b>Syncope episodes did not occur any longer in 1 patient on β-blocker, but recurred in 3 other patients and 2 patients died (one due to his cessation of metoprolol for 3 months). Inverted and/or bifid T waves and abnormal U wave were observed in the precordial leads. T wave alternans was observed in 4 patients in the precordial leads. These abnormal electrocardiogram features disappeared or diminished with β-blocker treatment. All spontaneous episodes of ventricular tachycardia occurred prior to sinus tachycardia and frequent polymorphic premature ventricular contractions.</p><p><b>CONCLUSIONS</b>Bifid and/or inverted T waves, T wave alternans and abnormal U waves together with sinus tachycardia and frequent premature ventricular contractions are indicator for predicting ventricular arrhythmia and assessing the effect of β-blockers. Compliance with β-blocker treatment is a strong indicator of outcome.</p>

Clinical features of six patients with catecholaminergic polymorphic ventricular tachycardia / 中华心血管病杂志

<p><b>OBJECTIVE</b>To describe the clinical features of 6 patients with catecholaminergic polymorphic ventricular tachycardia.</p><p><b>METHODS</b>Clinical data including signs and symptoms, electrocardiograms, Holter monitoring electrocardiograms and echocardiography was analyzed. Definite diagnosis was made based on the mutations of RYR2 and CASQ2.</p><p><b>RESULTS</b>From July 2002 to March 2010, 6 consecutive patients referred to our center because of syncope [4 males, mean age (13.0 ± 4.2) years] were diagnosed with CPVT by clinical evaluation and genetic testing. Their electrocardiograms showed T waves with notch or bimodal and tall U waves in right chest leads. There was no J wave, no ST-segment deviation, no prolongation or shortening of QT interval. We captured the so-called "bidirectional and(or) polymorphic ventricular tachycardia (bVT and pVT)" in 2 out of 6 patients by ECG, in 5 out of 6 patients by 24-hours Holter monitor, in 3 out of 6 patients by exercise test. All patients received β blockers and no syncope occurred during the 3 months follow-up after discharge from hospital.</p><p><b>CONCLUSIONS</b>CPVT is an inherited cardiac channelopathy characterized by syncope and(or) sudden death relatived to motion. The ECG shows T wave alteration and tall U wave in right chest leads. The mode of its onset is bVT and(or) pVT, and can be captured by Holter easily. β blocker is a safe and effective remedy for suppressing its attack.</p>

Analysis of the prevention and control of endemic arsenism in Qianxinan State of Guizhou Province in 30 years / 中国地方病学杂志

Objective To summarize the prevention and control of endemic arsenism in Qianxinan state of Guizhou Province in 30 years,so as to provide scientific basis for prevention and control of arsenic poisoning. Methods According to the documentary information of endemic arsenism in Qianxinan state of Guizhou Province of 1976-2005.and the data from samples monitoring of published article,to discuss the general situation of prevention and control by time sequence.Results There were 3 large outbreaks in Xingren County in 1976.in Jiaole District in 1991,in Xingyi City and Anlong County in 1992-1994 with 877,1548 and 594 patients respcctively.The arsenic quantities of various areas of burning-coal were 3361,2130,352 and 2150 mg/kg,which were obviouslv above national standards(1 00 mg/kg).The arsenic quantities of samples were 1.34,1.34,0.71 and 0.39 mg/L in urine,and 53.50,53.50,58.60 and 12.60 mg/kg in hair.The national standards of the two samples were 0.17 mg/L and 0.28 mg/kg.The dead causes of 236 arsenism decedent were 45.3%(107/236)cancer,26.3% (62/236)hepatocirrhosis ascites,5.9%(14/230)lung-cardiopathy in 1992-2000.Other systemic damages were found.Conclusions Reducing the use of high-arsenic coal is crucial in prevention of endemic arsenism.Only the long-term mechanism is established and the strong prevention and control measures are formulated,the occurrence of endemic arsenism can be effectively controlled.

Polymorphism of N-acetyltransferase 2 (NAT2) gene polymorphism in shanghai population: occupational and non-occupational bladder cancer patient groups / 生物医学与环境科学（英文）

<p><b>OBJECTIVE</b>Arylamine N-acetyltransferases (NATs) are involved in the detoxification of aromatic amines and hydrazine. In order to explore the possible association of NAT2 polymorphism with bladder cancer risk in benzidine exposed or non-exposed Chinese individuals, healthy subjects, subjects with bladder cancer of a former benzidine exposed cohort in Shanghai dyestuff industry and a group of bladder cancer patients without known occupational exposure to aromatic amines were genotyped for NAT2 gene polymorphism.</p><p><b>METHODS</b>NAT2 genotyping was performed with a set of RFLP procedures at seven major polymorphic loci of gene coding area: G191A, C282T, T341C, C481T, G590A, A803G and G857A.</p><p><b>RESULTS</b>The wild allele NAT2 *4 was the most prevalent allele (59%) in healthy individuals. The alleles NAT2*6A and NAT2*7B were also frequently observed (21% and 17%, respectively). In contrast to Caucasians, the percentage of slow acetylators was lower (12% in Chinese vs. 58% in Caucasians, P < 0.001). No relevant differences were observed for homogenous rapid, heterogeneous rapid/slow and homogeneous slow acetylation genotypes between the healthy subjects and both groups of bladder cancer patients.</p><p><b>CONCLUSION</b>The present work did not support the association of slow acetylating genotypes of NAT2 gene with elevated risk of bladder cancer in Chinese whereas it was documented as an important genetically determined risk factor in Caucasians. Different mechanisms might play a role in individual susceptibility to bladder cancer related with aromatic amine exposure in various races or ethnic groups.</p>

Glutathione S-transferase T1, M1 gene polymorphism in leukemia patients in Shanghai area / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To explore the possible association of polymorphisms of glutathione S-transferases T1, M1 genes and leukemia susceptibility.</p><p><b>METHODS</b>AS-PCR procedure was applied to determine the GSTs genotypes in a group of leukemia patients (n=61) in Shanghai area. The genotype frequencies in the leukemia patients and normal controls (183 healthy residents in the same city) were compared. Stratification with leukemia types, age and gender was made for further comparison.</p><p><b>RESULTS</b>The frequencies of GSTT1 0/0 genotype and GSTT1 0/0-GSTM1 0/0 combined genotype were higher in leukemia patients than in controls, and the differences were significant. When stratified with age and gender, this trend still existed in the male ALL patients and in younger ALL patients (age < or = 30).</p><p><b>CONCLUSION</b>Individuals who bear GSTT1 0/0 genotype or GSTT1 0/0-GSTM1 0/0 combined genotypes are more susceptible to leukemia, especially for male and younger carriers.</p>

Polymorphism of glutathione S-transferase T1, M1 and P1 genes in a Shanghai population: patients with occupational or non-occupational bladder cancer / 生物医学与环境科学（英文）

<p><b>OBJECTIVE</b>Glutathione S-transferases are involved in the conjugation of xenobiotics. To explore whether GSTs polymorphisms are involved in the development of occupational or non-occupational bladder cancer, polymorphism frequencies of GSTT1, M1 and P1 were investigated in a normal population, which had been settled in a rural area in Shanghai suburb for at least 5 generations as well as in a group of patients with benzidine exposure related occupational bladder cancer in Shanghai dyestuff industry and a group of patients with non-occupational bladder cancer.</p><p><b>METHODS</b>PCR based procedures were performed in the study populations to confirm the genotypes of GSTT1, M1 and P1.</p><p><b>RESULTS</b>The polymorphisms at locus of GSTP1-A1578G in the normal population differed significantly from those in Caucasians or African Americans. All the subjects genotyped so far (n = 118) bore only homogenous wild genotype (C2293/C2293) at GSTP1-C2293T locus. This locus seemed to be a monomorphic in Shanghai population. No significant difference in GSTT1 and GSTM1 polymorphic form frequencies could be confirmed among three groups of subjects. An overrepresentation of GSTP1 AG or GG genotype corresponding a less stable and less effective isozyme protein was detected in patients with benzidine related occupational bladder cancer, compared with that in the normal population though a statistical significance was not yet reached (P = 0.09, OR = 1.96, 95% CI 0.89-4.32).</p><p><b>CONCLUSION</b>This study suggests that GSTM1 or GSTT1 homozygous deficiency genotypes and their combination do not have a clear impact on bladder cancer incidence in a Shanghai population. It seems that GSTP1 polymorphism is not associated with non-occupational bladder cancer. GSTP1 AG or GG genotype has a higher frequency in the patients with benzidine related occupational bladder cancer, and further work is needed to confirm if GSTP1 AG or GG genotype plays a role in the development of occupational bladder cancer.</p>