ve To explore the mutagenicity of selenium and lead, the antagonistic effects of selenium on lead. Methods The ICR mice were orally perfused with sodium selenite (Na2SeO3) at different concentrations of 2.5,5.0 and 10 mg/kg and lead acetate [Pb(Ac)2] at different concentrations of 5,10 and 25 mg/kg jointly and con-tinuously for 3 days, and then the numbers of bone marrow polychromative erythrocytes were counted. Results The frequencies of micronucleus of mice only exposed to 10 mg/kg Na2SeO3, 10, 25 mg/kg Pb(Ac)2 respectively showed higher levels compared with those of control (P

Objective To approach the clinical features of refractory Mycoplasma pneumoniae pneumonia (RMPP) in children and provide evidence for clinical treatment.Methods A retrospective analysis was conducted.Two hundreds and twenty children with Mycoplasma pneumoniae pneumonia (MPP) admitted to the Integrated Chinese and Western Medicine Hospital of Zhejiang Province were enrolled from January 2013 to June 2016.According to the criteria of diagnosis of MPP and RMPP,the patients were divided into a general group (172 cases) and a refractory group (48 cases).Their general information,incidence of pulmonary positive sign,laboratory data,radiological findings,complications,therapeutic situations and prognoses,etc.between the two groups were observated.Results There were no significant difference in gender distribution between the two groups,but the age of the refractory group was much older than that of the general group (years:7.15 ± 1.89 vs.4.86±2.16),and the fever duration in the refractory group was obviously longer than that in the general group (days:11.17±2.82 vs.6.27±2.29,P ＜ 0.01).the levels of C-reactive protein [CRP (mg/L):46.8 ± 18.6 vs.13.5 ± 8.4],erythrocyte sedimentation rate [ESR (mm/1 h):56.9 ± 14.8 vs.28.7 ± 10.2],incidence of positive pulmonary sign [100.0％ (48/48) vs.33.7％ (58/172)],the incidence of pulmonary segmental consolidation [81.3％ (39/48) vs.27.9％ (48/172)] and incidence of extra-pulmonary complications [83.3％ (40/48) vs.16.3％ (28/172)] were all higher in refractory group than those in general group (all P ＜ 0.01).All the patients were treated with macrolide antibiotics and traditional Chinese medicine,the patients in the refractory group was additionally treated with glucocorticoids,and a few of them were treated with gamma immunoglobulin and bronchoalveolar lavage;all of them recovered well,high temperature had returned to normal and the imageology findings recovered well,then they all discharged without any sequela such as bronchiectasis and pulmonary atelectasis.Conclusions Physicians should pay more attention to the MPP patients with longer fever duration (especially longer than 10 days),serious signs and symptoms,more complications,higher CRP and ESR and severe radiological findings.Besides early application of macrolide antibiotics,rational use of glucocorticoids,gamma immunoglobulin and bronchoalveolar lavage can be considered.

Objective To explore the relationship between methylenetetrahydrofolate reductase (MTHFR) 677C ＞ T and unexplained recurrent pregnancy loss (URPL).Methods All patients were recruited from the outpatient department of Obstetrics/Gynaecology & Genetics of Hangzhou First People's Hospital from January 2013 to May 2014.A case-control study was performed.According to the stochastic indicator method,there were 125 subjects with a history of ≥2 times URPL as the case group,and 905 healthy parous women with no history of URPL as the control group.Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used to detect the distributions of the polymorphisms of MTHFR 677C ＞ T,and the results were validated using oligo-chip and direct sequencing.Results The allele and genotype frequencies of MTHFR were 60.0％ for C,40.0％ for T,32.0％ for CC,56.0％ for CT,and 12.0％ for TT in the case group and 67.4％ for C,32.6％ for T,41.4％ for CC,52.0％ for CT,and 6.6％ for TT in the control group,respectively.The prevalence of allele T was significantly higher in the case group than in the control group (OR =1.379,95％ CI =1.051-1.808,P =0.020),the frequency of genotype TT was also significantly higher in the case group than in the control group (OR =2.344,95％ CI =1.220-4.503,P =0.009).Conclusion The fertile women with MTHFR 677T allele and 677TT genotype may be susceptibility to URPL in a Chinese Han population from the Hangzhou area.

Insulin resistance and insulin secretion deficiency are main machanisms in inducing type 2 diabetes mellitus (T2DM), and mitochondria damage plays an important role in them. Research shows that autophagy is a self-protective mechanism of cells, which plays an important role in maintaining the normal structure and function of pancreatic β cells and improving insulin resistance. Previous studies show that traditional Chinese medicine can regulate cell autophagy to influence β cells and insulin resistance, type 2 diabetes mellitus and its complications. Thus this review will talk about the process of the relationship between autophagy and T2DM and the intervention effect of traditional Chinese medicine.
Animals ; Autophagy ; drug effects ; Diabetes Mellitus, Type 2 ; drug therapy ; metabolism ; physiopathology ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; Insulin ; metabolism ; Insulin Resistance ; Insulin-Secreting Cells ; cytology ; drug effects ; metabolism

Objective To investigate whether Senxing granule is effective on deferring aging and its mechanism. Methods The assay methods for life span of fruit fly and rat antioxidation were used for the study. Level of lipoperoxide, activity of glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) in whole blood and liver tissue was measured. Low dose of Senxing granules in the culture medium was decided as 0.007 % and middle dose as 0.022 %. Results Low dose of Senxing granule significantly increased the mean life span of female fly by 3.7%( P

Objective To describe epidemiological characteristics of scalp psoriasis in China,and to determine its influencing factors through a hospital-based,multicenter and large-scale survey.Methods An epidemiological survey was conducted on patients with scalp psoriasis in 42 hospitals in 11 provinces and 4 municipalities.A questionnaire was designed to collect general and clinical information of patients,including clinical type,lesion distribution,psoriasis scalp severity index (PSSI),aggravating factors,influence on quality of life,treatment course,degree of satisfaction with treatment,etc.Participants were asked to fill out the questionnaire with the help of well-trained dermatologists.Data were processed with the EpiData software.The WPS system and Epi Info 5.0 statistics software were used for descriptive analysis of the data.Results Totally,3 901 patients participated this study,and 3 586 valid questionaires were obtained.The mean age at onset of scalp lesions was (27.40 ± 13.34) years,and the male to female ratio was 1.6∶1 with a mean PSSI score of 13.61 ± 12.31.The hairline of the forehead was the most frequently affected area with the constituent ratio of forehead psoriasis being 74.3％ (2 663/3 586).The duration of scalp psoriasis reached 3 to 6 months every year in 1 136 (31.7％) patients,and the area affected by scalp psoriasis was less than 25％ of the total surface area of the scalp in 1 649 (46％) patients.The most frequent clinical presentation was scaling (92.1％),followed by erythema (80.6％),itching(76.7％),bunchy hairs (39.9％) and hair loss(18.0％).Disease aggravation was most frequently associated with seasons (76.7％),emotions (47.4％),stress (47.1％) and fatigue (46.6％).The quality of life (especially social,outdoor and entertainment activities) was reported to be negatively influenced by this entity to different degrees in 2 529 (70.5％) patients.Of these patients,583 (17.8％) received combination therapy (topical and systemic),with glucocorticoid ointment (27.5％),calcipotriol scalp solution (22.7％) and glucocorticoid-containing solution (11.9％) being the most commonly used topical drugs; only 38.6％ complied with medication requirements and doctors' advice for 3 to 5 weeks,and 35.2％ believed that the primary reason for poor compliance was unsatisfactory response to drugs.It was considered that an ideal drug for the treatment of scalp psoriasis should be highly effective (50.3％),safe (17.8％) and easy to apply (11％) with a rapid onset of action(11.9％).Conclusions Scalp psoriasis has a predilection for the hairline of the forehead with scaling as the main clinical presentation.Winter and spring seasons appear to be the most common aggravating factor of scalp psoriasis.The quality of life is negatively influenced to different degrees in many patients with scalp psoriasis.Topical corticosteroids plus non-hormonal drugs should be the first choice for the treatment of scalp psoriasis.Patients consider that the ideal drugs for the treatment of scalp psoriasis should be effective,safe,and easy to apply.

Objective To evaluate the effect of collagen shield delivering fluconazole eye drops made by centrifugal method on treating fungal keratitis of rabbit eyes.Methods Using centrifugal method to make corneal collagen shield,after soaked with fluconazole eye drops,the collagen shields were used to treat fungal keratitis of rabbit eyes.Results The healing focus time of collagen shield delivering fluconazole eye drops group was average 11 days,the healing focus time of only delivering fluconazole eye drops group was average 18 days.The cure rate and effective rate of 2 groups were 78.94%,63.15% and 92.10%,78.94%,there were significance between 2 groups(P<0.05).Conclusion It was innovation for corneal collagen shield delivering fluconazole eye drops made by centrifugal method to cure fungal keratitis,which had broad development foreground.

Objective To analyze the syphilis epidemic characteristics and trends of Yongchuan District during 2010? 2015 to provide a basis for formulating the prevention and control strategy of syphilis.Methods The data of syphilis cases reported in Yongchuan District of Chongqing City during 2010-2015 were arranged,checked anal statisticallyanalyzed.Results The incidence rate of syphilis showed a reverse U type change trend from rising to declining,latent syphilis accounted for the highest proportion,congenital syphilis cases were decreased year by year.The analysis results showed that the constituent ratio of latent syphilis and congenital syphilis had statistical difference between 2010-2013 and 2014-2015(P＜0.05);syphilis high prevalent area was concentrated at the city and town area,while prevalence rate was slower in rural area.Most of syphilis patients were concentrated in the age group of 25-45 years old.There was no difference between women and men;syphilis cases generally had lower educational level,majority concentrated at the population of junior high school or below;the occupations in the syphilis patients were concentrated at the entertainment personnel,followed by migrant workers.Conclusion The incidence rate of syphilis is changed from rising to smoothly and steady decreased.It is necessary to adopt the pertinent prevention and control measures for the high-risk population.

Objective To investigate the effect of butylphthalide on the memory,movement and ERP (event-related potentials) in patients with cerebral infarction cognitive impairment.Methods A total of 134 patients with cerebral infarction cognitive impairment were randomly divided into treatment group (67 patients) and control group (67 patients).All patients were given conventional cerebral infarction treatment as well as cognitive improvement intervention.Oral administration of butylphthalide was added onto the patients in the treatment group.Curative effects were observed after 30 days′ continued treatment.The cognitive function scores,memory scores,movement scores,ERP test and adverse reaction were compared between the two groups before and after treatment.Results After 30 days′ treatment,two groups of the montreal cognitive assessment scale (MoCA) scores were 27.2±4.9 and 25.1±4.1 respectively;the total scores of memory were 5.5±0.5 and 4.9±0.5 respectively;the scores of motor assessment scale (Fugl-meyer) were 85.6±6.2 and 74.2±6.1 respectively and P3 amplitudes were (9.5±0.9)μV and (8.1±0.9)μV respectively.All the indexes mentioned above in treatment group were significantly increased compared with those of before treatment(P<0.05).The results of N1,N2,P2 and P3 in the latency detection were significantly decreased compared with those of before treatment(P<0.05).And the results of P2 and P3 in the latency detection of the treatment group were shorter than those of the control group(P<0.05).After treatment,no adverse reaction was observed in both groups.Conclusion Based on conventional cerebral infraction treatment,oral administration of butyraldehyde effectively improve the therapeutic effect.

Adolescent ; Child ; Child, Preschool ; Female ; Humans ; Liver Cirrhosis ; congenital ; pathology ; Male