Objective To investigate the effect of T helper cell type-1(TH 1) cytokines [interferon-? (IFN-?), tumor necrosis factor-a (TNF-?)] and T helper cell type-2(TH 2) cytokines [interleukin-4 (IL-4)] on pathogenesis of intrahepatic cholestasis of pregnancy (ICP). Methods The peripheral blood mononuclear cells (PBMC) from 20 cases of ICP patients (study group) and 20 cases of normal pregnant women (control group) were cultured with photohemglutinin stimulation. TNF-?, IFN-? and IL-4 were determined in the supernatant by enzyme- linked-immunoassay. Results (1) In supernatants of cultured PHA induced PBMC, the levels of IFN-? and TNF-? of study group were (639?156) ng/L and (1 021?231) ng/L, which were significantly higher than those of control group, (464?147)ng/L and (728?175) ng/L( P

Objective To investigate the effect of silodosin,a selective alpha1 a-adrenoceptor antagonist on a rat model of testosterone-induced benign prostatic hyperplasia (BPH) and its mechanisms.Methods The rats were divided into three groups:control,testosterone-induced BPH,and silodosin +BPH groups.BPH was induced by subcutaneous injection of testosterone [20 mg/(kg · d)] for 4 weeks.Meanwhile silodosin + BPH groups rats were administered silodosin 4 weeks [100 μg/(kg · d)].After 4 weeks,all animals were sacrificed to examine the blood biochemical profiles,prostate volume,weight,histopathological changes,and epidermal growth factor receptor (EGFR) and B-cell chronic lymphocytic leukemia (CLL)/lymphoma 2 (BCL-2) protein expressions.Results Each group showed an increase compared to their initial body weight;however,differences in weight change between groups were not significant (P ＞ 0.05).The BPH group displayed lower glucose levels than the control group.The serum levels of glutamic oxaloacetic transaminase (GOT) and glutamic pyruvic transaminase (GPT) were not significantly different among groups (P ＞ 0.05).The group treated with silodosin showed significantly lesser prostate size and weight than the testosterone-induced BPH group [volume:(0.93 ± 0.14) cm3 vs (1.75 ± 0.15)cm3,P ＜0.01;weight:(0.97 ±0.06)g vs (1.30±0.05)g,P ＜0.01].In addition,silodosin decreased the expressions of EGFR and BCL-2 in prostate tissues (P ＜ 0.05).Conclusions These results suggest that silodosin suppress the development of BPH by inhibiting the expressions of EGFR and BCL-2.

Objective To assess the value of plug mesh tension free hernia repair in the treatment of abdominal external hernia. Methods 123 tension free repairs of hernia in 115 patients performed in our hospital from April 1988 to May 2000 were retrospectively reviewed. 50 4% (58/115) of cases were complicated by diseases such as cardiopulmonary dysfunction, hypertension, diabetes mellitus, prostate hypertrophy, cirrhotic ascites and thrombocytopenia. Results All patients had healing by first intention with no incisional infection or death , and they were discharged 3～7 days after operation(90% of patients were discharged 3 days after operation).90 4% of patients were followed up with an average of 20 months (1～25 months). There was no recurrence during the follow up.Conclusion Plug mesh tension free repair has the advantages of less trauma, little postoperative discomfort, rapid recovery and low recurrent rate.

Humans ; Platelet Aggregation Inhibitors ; therapeutic use ; Platelet Glycoprotein GPIIb-IIIa Complex ; antagonists & inhibitors

Raltitrexed is a specific inhibitor of thymidylate synthase (TS),which has significant antitumor activity.Overseas and domestic researches show that raltitrexed can be widely applied in clinical treatment for colorectal cancer patients because it is effective,well-tolerated and convenient.

Adult ; Female ; Humans ; Intestinal Neoplasms ; Male ; Middle Aged ; Sarcoma, Myeloid

Cells, Cultured ; Flutamide ; pharmacology ; Human Umbilical Vein Endothelial Cells ; cytology ; drug effects ; metabolism ; Humans ; Proto-Oncogene Proteins c-myb ; metabolism ; Sp1 Transcription Factor ; metabolism ; Testosterone ; antagonists & inhibitors ; physiology ; Transcription Factors ; metabolism ; Tumor Suppressor Protein p53 ; metabolism

Objective To study the change of the structural and biological properties of the cardiovascular tissue after cell extracting. Methods The native and treated pulmonary cusp and pulmonary artery wall were evaluated by HE stain, ETVG stain, immunochemistry stain and scan electron microscopy. The contents of the main macro-molecules were measured. The content and position of calcium was investigated by subcutaneous implantation in a rat model. Results The acellularization procedure resulted in an almost complete removal of the original cells while the construction of the matrix remained. The contents of colleagen and elastin increased while soluble GAG reduced. The content of calcium in acellular tissue by xenogenic implantation was less obviously than that in fresh one. Conclusion A suitable acellularization procedure can remove all cells and most soluble proteins, and matrix remains nearly intact, so as to alleviate obviously calcification via xenogenic implantation in vivo.

Objective To study the possibility of endoscopic thyroidectomy. Methods Benign thyroid tumors, with diameter between 22 mm and 38 mm, were successfully removed in 8 patients by endoscopic thyroidectomy through anterior chest wall. Results The mean operation time was 120 min (range, 60 min～180 min), and the mean intraoperative blood loss was 20 ml (range, 10 ml～50 ml). No intraoperative or postoperative complications occurred. And no scars remained. Conclusions Endoscopic thyroidectomy through anterior chest wall is a safe and effective procedure for benign thyroid tumors, with excellent cosmetic results in the neck postoperatively.

Objective To investigate the changes and significance of serum nitric oxide levels in the early stage after rat liver transplantation.Methods Male Sprague Dawley rats were used as do- nors and recipients of orthotopic liver transplantation,and the time of cold preservation and anhepatic phase was 4 h and 25 min respectively.Forty-eight rats were randomly divided into groups A,B and C (n=16 each).The samples of blood were taken from vena cava and hepatic tissues from left lobe 2 h, 4 h,6 h in groups A,B and C respectively after liver graft reperfusion.ALT and NO levels in serum were detected,and the expression of NF-?B in hepatic tissue was examined by immunohistochemical technique.Amounts of bile flow in 5 min after liver graft reperfused initially were measured.The pathological changes in liver tissues were observed.Results Amounts of bile flow in 5 min in group A (3.73?1.11?l) were greater than those group B (2.35?0.92?l) and group C (2.23?0.81?l) (P