Objective:To observe the effect of CTLA-4Ig on preventing acute rejection and the role of costimulatory molecule B7-1 and B7-2 via the model of orthotopic liver transplantation(ROLT)in rats.Methods:Build the model of ROLT(DA-Lewis).All rats were divided into 2 groups randomly.Group A was control group.Group B was injected with CTLA4-Ig into abdominal cavity after 48 hours of operation.Animals were sacrificed on the day 3,5,7,10 after ROLT to detect the changes of serum biochemistry(ALT,TBIL and DBIL).Liver grafts were collected for measuring the expression of B7-1 and B7-2 mRNA by RT-PCR.Results:1)Compared with the control group,the expression of B7-1 and B7-2 mRNA increased significantly(P

Objective:To check RNA binding protein QKI-5's expression level in breast cancer cells and inhibiting effect on cancer cell proliferation.Methods:QKI-5's expression level was checked in different breast cancer cells by Western blotting,cancer cells of overexpressed QKI-5 gene could be stabilized by slow virus infection construction,MTT and FCM were used to check cell period to express QKI-5's influence on cell proliferation and period.Results:MCF-7 cells have relatively low QKI-5 expression level in three breast cancer cells,MTT experiment result has obvious reduced influence on QKI-5's expression of MCF-7 cell proliferation P＜0.05,mean-while,cell period inspection shows that overexpressed QKI-5's MCF-7 cells have obvious G1 retardant,cells in S and G2/M periods are reduced.Conclusion:High expression of QKI-5'in breast cancer could cause slow cell proliferation by inhibiting cancer cell period,hence causing limited tumor growth.

Adolescent ; Brain ; pathology ; Child ; Encephalitis ; pathology ; Female ; Humans ; Magnetic Resonance Imaging ; methods ; Male ; Mycoplasma Infections ; pathology ; Mycoplasma pneumoniae ; pathogenicity ; Retrospective Studies

BACKGROUND:Bone cement used in the vertebroplasty treatment of osteoporotic vertebral compression fractures is nonabsorbable and has stronger intensity than normal bone tissue, which can cause further fractures of adjacent segments. OBJECTIVE:To investigate the short-term effect of vertebroplasty with artificial bone in the treatment of osteoporotic thoracolumbar fractures. METHODS:A total of 21 patients with osteoporotic vertebral compression fractures were enrol ed, including 7 males and 14 females, aged 61-89 years old. Al the patients were subjected to vertebroplasty with calcium sulfate injection. Visual analog scale and Oswestry Disability Index assessment were used before and at 0, 24, 48 weeks after treatment;meanwhile, X-ray and CT were used to observe the fil ing and leakage of artificial bone. RESULTS AND CONCLUSION:After treatment, al the patients showed improvements in the scores of visual analog scale and Oswestry Disability Index (P<0.01). X-rays and CT scans showed that there were three cases of leakage but without spinal cord and nerve compressions. After 3 months, most of the artificial bone was absorbed. These findings indicate that vertebroplasty with artificial bone can ease pain and improve living conditions of patients with osteoporotic vertebral compression fractures.

Background and purpose:In recent years,sleeve resection of bronchus and pulmonary artery has been more extensively applied in treatments of lung cancer patients with poor pulmonary functions.This kind of surgery meets the basic surgical principles of lung cancer being maximum both in resecting the carcinoma of the lungs and preserving pulmonary functions,has a good prospect.Therefore,we summarize our recent experience in treating central type lung cancer by this method and discuss its principles and methods in the application of the surgical operation.Methods:From Dec.1993 to Dec.2003,63 patients with central type lung cancer underwent sleeve lobectomy of bronchus and pulmonary artery,including sleeve resection of bronchus and pulmonary artery in 43 cases,wedge resection of bronchus and pulmonary artery in 3 cases,sleeve resection of bronchus and wedge resection of pulmonary artery in 17 cases.The surgical procedures of sleeve resection included sleeve resection of right upper lobe and pulmonary artery in 20 cases,sleeve resection of left upper lobe and pulmonary artery in 23 cases,and the length of pulmonary artery that had been respected is from 1.5cm to(4.5cm),the average length is 2.5cm.The surgical procedures of wedge resection included wedge resection of right upper lobe and pulmonary artery in 2 cases, wedge resection of left upper lobe and pulmonary artery in 1 case.The group of sleeve resection of bronchus with wedge resection of pulmonary artery included sleeve resection of right upper lobe and wedge resection of pulmonary artery in 5 cases,sleeve resection of left upper lobe and wedge resection of pulmonary artery in 12 cases.Results:No case of death and anastomotic leak occurred.Conclusions:Because sleeve resection of bronchus and pulmonary artery can not only effectively resect the tumor but also maximally preserve the pulmonary function at the same time,it enlarges the surgical indications of lung cancer,and is an effective and safe method for the treatment of lung cancer.

Adolescent ; Child ; Child, Preschool ; Dendritic Cells ; Female ; Humans ; Infant ; Male ; Neoplasm, Residual ; pathology ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; pathology

Humans ; Medical Waste Disposal ; Occupational Health

IgG4-related disease (IgG4-RD) is a newly recognized fibro-inflammatory condition of autoimmune etiology in recent twenty years, mainly manifesting as mass-forming lesions in single or multiple organs. In the past, it was often missed or misdiagnosed as inflammation or tumor. Patients may die from multiple organ failure due to end-stage fibrosis if they are not treated promptly. However, the number of clinically confirmed cases has gradually increased with the improvement of diagnostic level in recent years, and these patients have benefited greatly after receiving early treatment. Although patients generally respond well to traditional immunosuppressors including glucocorticoids and disease-modifying anti-rheumatic drugs, refractory and recurrent cases, even patients with glucocorticoid contraindication are common. Important mechanistic insights have been derived from studies of B-cell depletion therapy, but greater awareness of the pathophysiology of IgG4-RD is still badly needed to identify novel therapeutic targets. In this article, we reviewed the pathogenesis progress and promising therapy of IgG4-RD to seek better clinical management of IgG4-RD.

OBJECTIVETo search for an effective therapy for chronic fatigue syndrome (CFS).

METHODSEighty-five cases of CFS were treated with massage and pressing of Back-shu points, combined with pressing acupoints on the head. The therapeutic effect was observed.

RESULTSAfter treatment of 3 courses, 26 cases were markedly effective, 52 cases were effective, and 7 cases were ineffective, with a total effective rate of 91.8% and a markedly effective rate of 30.6%.

CONCLUSIONPressing acupoints and massage can effectively improve clinical symptoms of the patient with chronic fatigue syndrome.

AIM: To study the effect of VEGF on extracellular H2O2 production in HUVECs and the role of H2O2 in the VEGF-induced proliferation. METHODS: HUVECs was stimulated with 500 ?g/L VEGF. Products of extracellular H2O2 was detected by H2DCFDA staining. MTT method was used to value the influences of 3?106 U/L catalase and 5-20 mmol/L H2O2 to VEGF function. RESULTS: After treatment for 15 min with VEGF, HUVECs appeared fluorescence, and continued to become stronger, peaked at 45 min then decreased. HUVECs, which was treated simultaneity with VEGF and 3?106 U/L catalase, only appeared very faint fluorescence. The proliferation of HUVECs by VEGF was restrained when treated with 3?106 U/L catalase. The extrinsic H2O2 at concentration of 5-10 mmol/L promoted the proliferation of HUVECs but inhibited the proliferation effect of VEGF on HUVECs (P