Objective The current study was designed to evaluate the efficacy and toxicity of taxol plus fluorouracil(TF)chemotherapy in patients with advanced gastric cancer.Methods 55 patients with ad- vanced gastric cancer were treated with TF schedule.A treatment cycle lasted 21 days.The efficacy was eval- uated after 2～3 cycles of the chemotherapy.Results These 55 patients were evaluated the efficacy and the toxicity.The total efficiency rate of TF schedule was 45.45 %.Clinical Benefit Response(CBR)were evaluated in 35 patients.Ache remission rate was 86.6 %.The main side effect of toxicity was neutropenia.The total re- sponse neutropenia is 56.4 %.The aboveⅢstage was 10.9 %.The rate of nausea and vomiting was 43.6 %. Conclusion The combination of taxol and fluorouracil is a high response protocol with mild toxicity.TF schedule has high efficiency for advanced gastric cancer,especially for the patients who had had chemothera- py with fluorouracil.

OBJECTIVETo establish a method to produce virus-like particles (VLP) of poliovirus type I in Saccharomy cescerevisiae to develop potential novel recombinant vaccine against poliovirus type 1.

METHODSThe genes of P1 and 3CD of poliovirus type I were optimized, synthesized and inserted into expression vector, which was further transfected into Saccharomy cescerevisiae. The extracts of yeast cells were purified by CsCl density gradient centrifugation after induction and cell lysis.

RESULTSElectrophoresis and sequencing analyses showed that the genes P1 and 3CD of poliovirus type I were successfully inserted into expression vector and encode a protein whose amino acid sequences were identical with wide-type genes of poliovirus type I. Electronic microscopy analysis showed that the VLPs of poliovirus type I could be efficiently formed in Saccharomy cescerevisiae.

CONCLUSIONThe VLPs of poliovirus type I could be efficiently produced by co-expression of P1 and 3CD genes in Saccharomy cescerevisiae.

Female ; Gene Expression ; Humans ; Male ; Poliomyelitis ; prevention & control ; virology ; Poliovirus ; genetics ; metabolism ; Poliovirus Vaccines ; genetics ; metabolism ; Saccharomyces cerevisiae ; genetics ; metabolism ; Viral Proteins ; genetics ; metabolism ; Virion ; genetics ; metabolism

The transplants of one-year-old Glycyrrhiza uralensis Fisch. were subjected to five concentrations of MnSO4-H2O (0, 1.81, 18.1, 36.2 and 54.3 mg·L(-1)) culturing in vermiculite. qRT-PCR and HPLC were respectively used to measure the relative expression of SQS1 gene and the content of glycyrrhizic acid of G. uralensis in different concentrations of MnSO4·H2O. This is to explore discuss the effects of the expression of SQS1 gene and the accumulation of glycyrrhizic acid by Mn treatment. The results showed both the expression of SQS1 gene and the content of glycyrrhzic acid of G. uralensis tended to rise after the fall of the first with the increase of concentration of Mn treatment. And they were of very significant positive correlation (P<0.01, r=0.737). Relative expression of SQS1 gene reached the highest 7.90 under 18.1 mg·L(-1) MnSO4·H2O treatment. It was very significantly different between 18.1 mg·L(-1) concentration of MnSO4·H2O treatment and CK (0 mg·L(-1)), 1.81, 36.2 and 54.3 mg·L(-1) (P<0.01), and 1.75, 1.37, 1.37, 2.33 times respectively. The content of glycyrrhizic acid reached the highest under 1.81 and 18.1 mg·L(-1) MnSO4·H2O treatment, and there were not significant difference (P>0.05). It was very significantly different between them and other concentrations of MnSO4·H2O treatment (P<0.01). This study suggests the appropriate concentration of Mn treatment could certain promote the expression of SQS1 gene and the accumulation of glycyrrhizic acid of G. uralensis.
Chromatography, High Pressure Liquid ; Genes, Plant ; Glycyrrhiza uralensis ; chemistry ; genetics ; Glycyrrhizic Acid ; analysis ; Manganese

The treatment of hereditary retinal disease is still one of the contemporary scientific problems.Leber congenital amaurosis (LCA) is one type of congenital retinal diseases.Desirable results have been achieved in ongoing clinical trials of gene therapy for LCA,and the efficacy and safety in the intraocular injection of a gene inserted in an adeno-associated virus (AAV) have been verified abroad.These results bring hope and opportunity to LCA patients.China has more hereditary retinal disease patients,but gene therapy for hereditary retinal disease and LCA is lacking.Rightly interpreting and objectively evaluating the clinical trials of gene therapy of LCA will provide us with many important references and useful clues to further help us organize and implement clinical trials of gene therapy for hereditary retinal disease in the future.

Objective To assess the right ventricular (RV) performance in patients with type 2 diabetes mellitus (2-DM) by two-dimensional speckle tracking imaging (2D-STI),and to explore the clinical value of RV longitudinal strain and strain rate.Methods Thirty-seven patients with 2-DM only and thirtyone patients coexisting diabetes and hypertension (DM + HTN) were studied.Thirty-nine healthy age matched persons served as control subjects.In each patient a conventional two-dimensional echocardiography was performed and also an echocardiographic study with strain/strain rate imaging was studied.Analysis of RV longitudinal systolic strain were obtained in the apical four-chamber view of the RV for the assessment of the RV free wall(F-PLSS),interventricular septum (S-PLSS) and the global RV wall (G-PLSS).The entire RV longitudinal peak systolic strain rate (G-SRs),peak early-diastolic strain rate (G-SRe) and peak late-diastolic strain rate (G-SRa) were performed in the apical four-chamber view.Results Compared with controls,F-PLSS,S-PLSS,G-PLSS,G-SRs and G-SRe were decreased in 2-DM and DM + HTN (all P ＜0.01),with lower values in DM + HTN (P ＜0.05).In the patients coexisting diabetes and hypertension,G-SRa was significantly lower than those in the control group (P ＜ 0.05).Compared with 2-DM,this difference was not significant in controls and DM + HTN (P ＞0.05).Conclusions No matte the patients of 2-DM with or without hypertension,the early changes of RV dysfunction can be found by 2D-STI.Patients coexisting diabetes and hypertension may have worse RV dysfunction.

BACKGROUND: Amyloid β(Aβ) protein is the core of senile plaque.Being the toxic segment of Aβ, Aβ25-35 has been extensively applied in the experiments of recent years. The research in the past has verified that the self-prepared Chinese herb, fuzhisan can promote the survival of the cultured neural cells and probably acts on the treatment of Alzheimer disease (AD).OBJECTIVE: To study the resistance of fuzhisan to Aβ25-35 toxicity to cultured neural cells and the probable approaches.DESIGN: Repeated measurement based on the cells.SETTING: Department of neurology of a university hospital and key experimental room in brain aging in a university hospital.MATERIALS: The experiment was performed in Beijing Key Experimental Room in Brain Aging of Xuanwu Hospital from June 2002 to April 2003. Dopaminergic SH-SY5Y cell of neuroblastoma and Aβ25-35 were employed. Chinese herb, fuzhisan was decocted with mild fire and its upper clear solution was collected and prepared into storage solution at the concentration of 0. 5 g/mL. Antibody: Beijing Key Experimental Room in Brain Aging of Xuanwu Hospital prepared cAMP responsive element binding protein(CREB),Bcl-2 in B lymphatic leukaemia-2 genetic product and cytochrome C(CytC).METHODS: SH-SY5Y cell was incubated with Aβ25-35 of various doses alone or in combination with fuzhisan and was compared with blank control. MTF metabolic rate of cultured neural cells were determined under different incubation conditions. Western-blot method was used to measure the protein expression changes in incubation with fuzhisanalone, incubation with Aβ25-35 alone and the combination incubation, compared with the blank control.MAIN OUTCOME MEASURES: It was to study MTT metabolic rate in the comparison between each experimental group and the blank control and expressions of CREB, Bcl-2 and CytC relevant to survival/death of neural cells.RESULTS: Survival rate of SH-SY5Y cell was increased by 11.4% in incubation with fuzhisan alone. It was remarkably improved in incubation combining fu zhisan with Aβ25-35 as compared with Aβ25-35 alone. The expressions of CREB and Bcl-2 in Aβ25-35 group were decreased and were increased in fuzhisan group. CytC expression in cytoplasm was increased in Aβ25-35 group and was declined with fuzhisan incubation.CONCLUSION: Fuzhisan promotes the survival of cultured neural cells and its protection is still existed under Aβ25-35 injury. Fuzhisan brings such effects into play probably by the protein expressions relevant to survival/death of cells.

Animals ; Arginine ; pharmacology ; therapeutic use ; Female ; Male ; Myocardial Ischemia ; drug therapy ; pathology ; physiopathology ; Myocardial Reperfusion Injury ; drug therapy ; pathology ; physiopathology ; Rabbits

OBJECTIVETo explore the effect of Qingyi Granule (QYG) on high mobility group box-1 (HMGB1) expressions in liver and renal tissues of severe acute pancreatitis (SAP) rats.

METHODSFifty-four Sprague-Dawley (SD) rats were divided into the sham-operation (SO) group, the SAP group, and the QYG group according to random digits table. Rats in the SAP group were induced by injecting 5% sodium taurocholate (STC). Liver and renal pathological changes were observed by HE staining. Serum contents of amylase (AMS), MDA, IL-1, and HMGB1 were detected by ELISA. HMGB1 protein expressions in liver and renal tissues were tested by immunohistochemistry. HMGB1 mRNA expressions in liver and renal tissues were detected by reversed transcription PCR.

RESULTSThe pathological scores, serum levels of AMS, MDA, IL-1 and HMGB1, and protein and mRNA HMGB1 expressions in liver and renal tissues were increased more obviously in the SAP group than in the SO group (P < 0.05, P < 0.01). All of them could be down-regulated by QYG intervention, with the most significant effect seen at 72 h (P < 0.05, P < 0.01) in a time-effect relationship.

CONCLUSIONSHMGB1 participated in SAP complicated liver and renal injuries. QYG could effectively inhibit HMGB1 expressions, thereby attenuating SAP complicated liver and renal injuries.

Amylases ; Animals ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; HMGB1 Protein ; metabolism ; Interleukin-1 ; Kidney ; metabolism ; Liver ; metabolism ; Pancreatitis ; drug therapy ; metabolism ; RNA, Messenger ; Rats ; Rats, Sprague-Dawley ; Taurocholic Acid

Adult ; Ambroxol ; administration & dosage ; therapeutic use ; Expectorants ; administration & dosage ; therapeutic use ; Female ; Glycoproteins ; therapeutic use ; Humans ; Lung ; pathology ; Lung Injury ; drug therapy ; pathology ; Male ; Paraquat ; poisoning ; Respiratory Distress Syndrome, Adult ; drug therapy ; etiology ; Retrospective Studies ; Young Adult

Biomarkers ; blood ; Biopsy, Needle ; utilization ; Hepatitis C ; complications ; Humans ; Liver ; pathology ; Liver Cirrhosis ; diagnosis ; pathology