Child ; Disease Susceptibility ; etiology ; Environmental Exposure ; Environmental Pollutants ; Health Status ; Humans

Metallothionein is a sulfhydryl-rich,and chelating a large number of metal ions,which is widely found in biological world.It is very highlighted that MT had the same physical and chemical features from different origins.Plenty of research data indicated that MTs contain 20 free sulfhydryl genes,as well as their sulfhydryl clusters,It is a multifunctional protein in health.Many experiments demonstrate that MTs may be a novel target of original new drugs because they play a role in regulating and controlling the organ fibrosis and tumor.

Objective To investigate the pathologic appearances,immunohistochemical features,and genetic changes of malignant triton tumor(MTT). Methods One case of MTT was studied pathologically and immunohistochemically,and the related literatures were reviewed. Results A huge mass,demonstrated in the thorax by X ray and CT scan was seen in the posterior mediastinum in the surgery.Histologically,the tumor was composed of spindle cells with significant atypia.Some of the tumor cells had dense eosinophilic cytoplasm.Immunohistochemical staining revealed positive for myoglobin,desmin and S-100 in most of the tumor cells.The pathological diagnosis was MTT of the posterior mediastinum. Conclusion Cases of MTT in the mediastinum are very rare,with less specific clinical and imaging manifestations.The diagnosis is mainly made on the basis of pathological examination and immunohistochemical staining.

Child ; Health Knowledge, Attitudes, Practice ; Humans ; Lead Poisoning ; prevention & control

Child ; China ; Humans ; Lead Poisoning ; prevention & control ; Public Health Practice

Objective To investigate the value of thyroid transcription factor-1(TTF-1) in the diagnosis and biological behavior assessment of hepatocellular carcinoma (HCC). Methods Thirty liver specimens obtained from benign lesions were analysed, among which 25 were hepatic cirrhosis and inflammatory diseases, and the other 5 were adenomas. And there were 176 specimens of liver tumors, among which 142 were HCC (well differentiated, n=12; moderately differentiated, n=57; poorly differentiated, n=73), 17 were intrahepatic cholangiocellular carcinoma (ICC) and the other 17 were liver metastatic carcinoma (MC). The expression of TTF-1 was examined immunohistochemically in the above tissues, and the difference in expression of TTF-1 among different tissues was examined by Fisher's exact test, Kruskal-Wallis test and Spearman rank correlation analysis. Results TTF-1 was significantly expressed in the cytoplasms of all the hepatocytes besides tumors and liver benign lesions. The expression rate of TTF-1 in HCC was 78.9% (112/142), however, TTF-1 was negatively expressed in ICC and MC(P

AIM:To investigate the effects of pioglitazone on the quantity and function-related factors of regu-latory and effector T cells ( Treg and Teff ) of uremic apolipoprotein E knockout mice in vitro with or without the stimulation of atherosclerotic plaque-specific antigen oxidized low-density lipoprotein ( oxLDL) .METHODS:Uremic apolipoprotein E knockout mouse model was established by 2-step surgical procedure.After intervention with different concentrations ( 2μmol/L and 20μmol/L) of pioglitazone and PPARγantagonist GW9662 (5μmol/L) on splenocytes of uremic mice for 12 h in the presence or absence of oxLDL (2 mg/L), the levels of CD4 +CD25 +Foxp3 +Treg and IFNγ+CD4 +Teff were de-termined by flow cytometry.The mRNA expressions of Foxp3 and IFNγwas detected by real-time fluorescent quantitative PCR.RESULTS:In vitro, oxLDL induced a Treg/Teff imbalance in splenocytes from the uremic mice.Pioglitazone up-regulated the level of Treg and mRNA expression of Foxp3 in the presence of oxLDL, which was not antagonized by GW9662.Meanwhile, pioglitazone downregulated the level of Teff and mRNA expression of IFNγin the presence or ab-sence of oxLDL, which was reversed by GW9662.CONCLUSION:oxLDL induces a Treg/Teff imbalance in uremic apo-lipoprotein E knockout mice.Pioglitazone modulates the Treg/Teff imbalance probably through PPARγ-independent and-dependent mechanisms.

Castleman Disease ; complications ; Child ; Female ; Humans ; Paraneoplastic Syndromes ; complications ; Pemphigus ; complications

Accidents, Occupational ; prevention & control ; China ; Humans ; Occupational Diseases ; prevention & control ; Occupational Exposure ; prevention & control ; Occupational Health Services ; organization & administration ; Safety

Objective To investigate the clinical efficacy and side reaction of tandospimne citrate capsules on treating patients with depression after stroke.Methods Seventy-eight patients who were diagnosed as anxiety and depression after stroke were taken as our subjects.They were randomly divided into control group (n =40) and treatment group (n =38).Patients in the control group were given conventional therapy for cerebral vascular disease and psychological treatment,while in the treatment group were given the same treatment besides tandospimne citrate capsules of 10 mg per times,3 times/d oral,and course of both two groups for 4 weeks.The patients of two groups were scored according to Hamilton Depression Scale(HAMD) at the time of pre-treatment and post-treatment.And the the clinical efficacy and side reaction were observed and compared.Results (1) HAMD scores of treatment group in 2,4 weeks after treatment had significantly lower than that before treatment ((8.09±2.21) vs.(6.31 ±2.28) vs.(11.98 ±2.17),P ＜0.05).HAMD scores of control group in the treatment at 2week was as same as that in 4 weeks((10.57 ±2.53) vs.(8.91 ±2.31)).There was statistically significant difference in two groups in 2,4 weeks after treatment in terms of HAMD scores(P ＞0.05).The total effective rate of control group was 31.6％ (12/38),and 92.5％ (37/40) in treatment group,and the difference was significant(x2 =63.69,P ＜ 0.01).In the course of treatment in the two groups,there were no obvious adverse reactions.Conclusion Tandospirone citrate capsules show the clinical curative effect in the treatment of anxiety and depression after stroke,and no obvious adverse reactions.