Anastomosis, Surgical ; Anastomotic Leak/surgery* ; Drainage ; Gastrectomy ; Humans ; Suction

OBJECTIVETo observe the effect of Yishen Jiedu Recipe (YSJDR) in retarding the course of chronic renal failure (CRF).

METHODSForty-five patients were divided into two groups, the 22 patients in Group A were treated with low-protein diet and blood pressure controlling therapy only, while the 23 patients in Group B were treated with additional YSJDR. The time (month) for doubling serum creatinine (SCr) level was taken to evaluate the speed of CRF progression.

RESULTSIn Group A, the time for SCr increased from 288.4 +/- 96.7 mumol/L to 586.3 +/- 251.3 mumol/L was 16.7 +/- 5.1 months, while in Group B the time for SCr increased from 291.2 +/- 101.2 mumol/L to 589.6 +/- 257.5 mumol/L was 28.2 +/- 8.7 months. Comparison between the two groups showed significant difference (P < 0.05).

CONCLUSIONOn the basis of low-protein diet and blood pressure controlling therapy, the additional treatment of YSJDR could markedly retard the progression speed of CRF.

Adult ; Creatinine ; blood ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Kidney Failure, Chronic ; drug therapy ; Male ; Middle Aged ; Phytotherapy

Objective To investigate the effects of Guiqi polysaccharide (GQP) on the telomerase activity in premature senescence of WI-38 cells;To discuss its mechanism of action.Methods MTT assay was used to observe the effects of different concentrations of H2O2 on the proliferation of WI-38 cells and screened the best concentration of H2O2 to induce premature senescence cellular model in WI-38 cells. ELISA and chemical staining method were used to evaluate the protection of GQP in telomerase activity and senescence-associated β-galactosidase activity in premature cellular senescence.Results 200μmol/L H2O2 treatment could induce premature senescence in WI-38 cells. There were no significant differences in senescence-associated β-galactosidase and telomerase activity between GQP group and normal control group (P>0.05), but had significant difference with model group (P<0.01).Conclusion GQP can increase the telomerase activity and inhibit the senescence-associated β-galactosidase activity in premature senescence of WI-38 cells.

Adult ; Dandy-Walker Syndrome ; complications ; pathology ; Humans ; MELAS Syndrome ; complications ; pathology ; Magnetic Resonance Imaging ; Male

This paper is aimed to research into the information model of the Digital Imaging and Communication in Medicine (DICOM) Structured Reporting (SR), and to introduce DICOM information object definitions (IODs) and services used for the storage and transmission of SR. The DICOM services are concerned with storage, query, retrieval, and transfer of data, and give a brief introduction to DICOM DIR. DICOM DIR is a file based on medical information. According to the DICOM DIR definition in the DICOM part ten, it may be found that the composite objects referenced in the DICOM SR. So putting forward the management of DICOM files by DICOM DIR sets, It effectively improves the efficiency of the object referenced by SR. This can increase the ability to access the data. For scientific research, medical data mining and applications, DICOM SR can profit the communication of medical information in different hospitals, and this can be useful for the analysis, research, summary, classification and extraction of a large quantity of medical information.
Computer Communication Networks ; Humans ; Information Storage and Retrieval ; methods ; standards ; Medical Records Systems, Computerized ; standards ; Radiographic Image Enhancement ; methods ; Radiology Information Systems ; organization & administration ; User-Computer Interface

OBJECTIVETo explore the effect of Gecko Swinhonis Gunther freeze-dried powder (GFP) in inducing apoptosis of C6 glioma cells.

METHODSThirty mice were randomly divided into three groups and treated with intraperitoneally injection of cisplatin, orally taken GFP or distilled water respectively. After treatment for 20 days, the serum of mice was collected for treating the C6 glioma cells. The apoptosis state of cells was observed by morphological examination, flow cytometry and TUNEL method, and the cell apoptosis related gene expression of bcl-2 and bax were determined by S-P immunocytochemical assay.

RESULTSThe C6 glioma cell apoptosis induction of GFP contained serum in vitro could be confirmed by morphological examination, flow cytometry analysis and TUNEL method. Comparison between the GFP treated group and the blank control group on intracellular bcl-2 gene expression showed no difference, but bax gene expression was higher in the GFP treated group.

CONCLUSIONGFP contained serum could induce C6 glioma cell apoptosis, its mechanism might be related with the up-regulation of bax gene.

Animals ; Antineoplastic Agents ; pharmacology ; Apoptosis ; drug effects ; Drugs, Chinese Herbal ; pharmacology ; Glioma ; chemistry ; genetics ; pathology ; Humans ; Male ; Materia Medica ; pharmacology ; Mice ; Proto-Oncogene Proteins c-bcl-2 ; biosynthesis ; genetics ; Random Allocation ; Serum ; Tumor Cells, Cultured ; bcl-2-Associated X Protein

OBJECTIVETo study the diversity of HIV-1 tat gene in CNS and peripheral tissue of a patient with ADC and a patient with non-ADC, so as to research HIV evolution, the mechanism of CNS invasion and the pathogenesis of ADC.

METHODSThe tat gene was amplified with nested PCR from genomic DNA which was extracted from spleen and basal ganglia of one non-ADC patient with a wide range of cerebral artery atherosclerosis and one ADC patient. PCR products were cloned into the PGEM-T vector, after transformation and selection by ampicillin and blue/white spotting. Five of positive clones were sequenced. HIV-1 tat sequences were processed with BioEdit and MEGA4. With the softwares, neighbor-joining tree, p-distances, values of ds/dn, and analysis of amino acid motifs were all done, so as to research the diversity of HIV-1 tat gene in CNS and peripheral tissue.

RESULTSGene mutation of HIV-1 tat exist in the two patients, the mutation process of tat isolated from ADC patient suffered more compartmentalization than tat isolated from non-ADC patient, the differences of tat genes between CNS and peripheral tissue in ADC patient were greater than the non-ADC patient. Ds/dn showed that the virus gene mutation played a major role, the body intend to remove harmful non-synonymous mutations.

CONCLUSIONSThe compartmentation of tat gene in CNS and peripheral tissue of the two patients was different, the reason may be related to the pathway of HIV into the CNS, the relationship between HIV gene mutation in CNS and ADC still need more investigation.

AIDS Dementia Complex ; virology ; Adult ; Amino Acid Sequence ; Central Nervous System ; virology ; Female ; Genetic Variation ; HIV-1 ; genetics ; isolation & purification ; Humans ; Male ; Middle Aged ; Molecular Sequence Data ; Peripheral Nervous System ; virology ; tat Gene Products, Human Immunodeficiency Virus ; genetics

BACKGROUNDHIV-1 infected and immune-activated macrophages and microglia secrete neurotoxins, such as tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β), which play major role in the neuronal death. It has been shown that different HIV-1 variants have varying abilities to elicit secretion of TNF-α by peripheral blood mononuclear cell (PBMC); however, whether the difference of gp120 gene could affect the secretion of TNF-α and IL-1β by glial cells is unknown. The aim of this study was to explore the association between gene diversity and induction of neurotoxic cytokines.

METHODSIn this study, we constructed retroviral vectors MSCV-IRES-GFP/gp120 using HIV-1 gp120 genes isolated from four different tissues of one patient who died of AIDS dementia complex (ADC). Recombinant retroviruses produced by cotransfection of MSCV-IRES-GFP/gp120, pCMV-VSV-G and pUMVC into 293T cells were collected and added into U87 glial cells. Concentrations of TNF-α and IL-1β secreted by transduced U87 cells were assayed with ELISA separately.

RESULTSThe four HIV-1 gp120 were in the different branch of the neighbor-joining tree. Compared to the pMIG retrovirus (gp120-negative) or U87 cells, all the gp120-positive recombinant retroviruses induced more TNF-α (P < 0.01) and IL-1β (P < 0.01). In addition, compared with the L/MIG retrovirus, all the three brain gp120-positive recombinant retroviruses induced less TNF-α (P < 0.01) and IL-1β (P < 0.01).

CONCLUSIONSHIV-1 gp120 could induce U87 cells secret more TNF-α and IL-1β again. The more important is that difference of HIV-1 gp120, especially cell-tropism may account for the different ability in eliciting secretion of TNF-α and IL-1β, which might supply a novel idea helping understand the pathogenesis of ADC.

AIDS Dementia Complex ; metabolism ; virology ; Cell Line ; Cell Line, Tumor ; Enzyme-Linked Immunosorbent Assay ; HIV Envelope Protein gp120 ; genetics ; metabolism ; Humans ; Interleukin-1beta ; metabolism ; Tumor Necrosis Factor-alpha ; metabolism

This study was aimed to investigate the specific anti-L615 leukemia cell immunity induced by L615/DC fused cell vaccine in vivo and in vitro. BM-derived DCs were generated from bone marrow of 615 mice by culturing for 9 - 10 days in culture medium supplemented with GM-CSF and IL-4. Irradiated L615 tumor cells were fused with DC by using PEG to form fused cell vaccine, with which 615 mice were immunized. After immunization, the specific proliferation ability and cytotoxicity against L615 leukemia cells in vitro were examined by MTT and LDH methods. Anti-leukemia effect of fused cell vaccine in vivo was studied by observing the immunotherapy effects on L615 tumor-bearing mice. The results showed that fully mature and functional bone marrow-derived DC were obtained. L615/DC fused cell vaccine could elicit potent specific proliferation response of spleen T cells from immunized mice when contacting with the same antigen at the second time, and could also elicit the effective cytotoxic activity against L615 leukemia cells in vitro, which were significantly different from other groups. In vivo the average survival time of the tumor-bearing mice received immunotherapy with L615/DC fused cell vaccine was 25.7 +/- 1 days, and one fourth of treated tumor-bearing mice survived for long time, but the mice of control group died all, their average of survival time was 17.5 +/- 1 days. The immunized mice survived with no evidence of recurrence when exposed to the second attack of lethal dose of living L615 cells 2 months later. It is concluded that L615/DC fused cell vaccine can improve the immunogenecity of L615 and induce effectively the specific anti-leukemia immunity against L615 leukemia cells to eliminate the residual leukemia cells, prolong the survival time and induce the immune memory to avoid the relapse. Thus, the fused cell vaccine may be an attractive strategy for malignance immunotherapy.
Animals ; Antigens, Neoplasm ; analysis ; Bone Marrow Cells ; cytology ; immunology ; Cancer Vaccines ; immunology ; therapeutic use ; Cell Fusion ; Dendritic Cells ; cytology ; immunology ; Female ; Immunotherapy ; Leukemia, Experimental ; immunology ; pathology ; therapy ; Mice ; Mice, Inbred BALB C ; Recombinant Proteins ; immunology ; T-Lymphocytes ; immunology ; Tumor Cells, Cultured

Objective:To explore any correlation between knee muscle strength and walking ability after an incomplete lumbar spinal cord injury and the factors influencing walking ability.Methods:Twenty-seven persons with an incomplete lumbar spinal cord injury were tested. Their bilateral quadriceps and hamstring muscle strength and peak torque during knee extension and flexion were assessed. They completed the 10m walking time test (10MWT) and each person′s WWISCI II spinal cord injury walking index was evaluated. Spearman correlations among the data were computed and stepwise regression was used to analyze the factors significantly influencing the 10MWT and WISCI II results.Results:The average hamstring strength was significantly negatively correlated with the 10MWT times and WISCI II ratings. Hamstring torque also was negatively correlated with the 10MWT times, but positively correlated with the WISCI II ratings. The 10MWT times and WISCI II ratings were significantly inter-correlated. Hamstring strength was the best predictor of 10MWT times (accounting for 63% of the variance) and WISCI II ratings (64%), but quadriceps strength was also a secondary predictor.Conclusions:Knee muscle strength is a useful predictor of 10MWT times and WISCI II ratings after incomplete lumbar spinal cord injury. It can predict early walking ability to some extent.