Humans ; Kidney ; pathology ; Kidney Neoplasms ; pathology ; Neuroectodermal Tumors, Primitive ; pathology

OBJECTIVETo explore the effect of berberine on lipid metabolism disorder and lipid deposition in liver cells of non-alcoholic fatty liver disease (NAFLD) rats induced by high fat diet.

METHODSAfter one week adaptable feeding, 45 SPF level male SD rats were randomly divided into 3 groups, the normal control group, the model group, and the berberine group, 15 in each group. Except those in the normal control group, all rats were fed with high fat diet to prepare NAFLD model. As for rats in the berberine group, Berberine Hydrochloride was administered by gastrogavage. HE staining and oil red O staining were performed to identify the model after 8 weeks. Hepatocytes were isolated, and their activities and purities were tested by Typan blue staining and flow cytometry (FCM). Serum levels of TC, TG, HDL-C, and LDL-C were detected using automatic biochemical analyzer. mRNA expression levels of LXRα and FAS in liver cells were analyzed by Real-time quantitative polymerase chain reaction (PCR). Protein levels of LXRα and FAS in liver cells were examined by Western blot.

RESULTSThe NAFLD rat model was successfully established by high fat diet. The yields of purified liver cells in each rat were (6.0-7.5) x 10(8). The viability of isolated liver cells with purity over 90% (tested by FCM analysis) was higher than 95%. Compared with the normal control group,the expression of LXRα and FAS at mRNA and protein levels was higher in the model group (P < 0.01). Compared with the model group, the expression of LXRα and FAS at mRNA and protein levels was obviously down-regulated in the berberine group (P < 0.01).

CONCLUSIONSLXRα/FAS signaling pathway was one of important signaling pathways of NAFLD lipid metabolism disorders. Berberine could recover hepatocyte fatty deposits in NAFLD rats by adjusting the LXR/FAS signaling pathway of hepatocytes, which might be one of important mechanisms for fighting against NAFLD.

Animals ; Berberine ; therapeutic use ; Diet, High-Fat ; Down-Regulation ; Drugs, Chinese Herbal ; therapeutic use ; Fatty Liver ; Hepatocytes ; Lipids ; Male ; Non-alcoholic Fatty Liver Disease ; drug therapy ; RNA, Messenger ; Rats ; Rats, Sprague-Dawley ; Signal Transduction

OBJECTIVETo evaluate the development and operation on measles surveillance system.

METHODSTo formulate surveillance program, and then establish surveillance system on measles in Hainan province before the case surveillance was conducted. Descriptive epidemiological method was used to analyze the measles cases reported through the notifiable diseases epidemic situation report system and measles surveillance system during 2004 - 2008 in Hainan province.

RESULTSFrom 2004 to 2008, through surveillance system, 3040 suspected measles cases were reported which was 96.00% higher than that from the notifiable diseases epidemic situation report system. When the measles surveillance system was first established in 2004, the number of cases reported by the surveillance system was less than that from the epidemic report system, however, the sensitivity of the surveillance system had been increasing since 2005. In 2008, the number of suspected cases reported by surveillance system was 19.12 times more than from the epidemic report system. The proportion of confirmed cases in the total suspected cases was decreasing annually, from 90.34% to 4.48%, along with the increase of the sample collection rate, from 22.73% to 99.12%. The proportion of laboratory confirmed cases in the total confirmed cases increased from 7.55% to 86.97%. With suspected cases, the IgM antibody positive rate on measles and rubella were 31.57% and 34.52%, respectively. In Hainan, the epidemic pattern of measles had been sporadic, except for 2006 as there occurred several outbreaks in that year. The of disease incidence had an obvious seasonal peaks, from March to June. Measles mainly attacked children under 15 years of age, accounted for 86.68% of the age group. Children with no immunity or unknown immune history accounted for 85.67%.

CONCLUSIONThe sensitivity of surveillance system had been increasing annually since it was developed and the incidence had been dropping to its lowest level. These achievements had built a solid foundation for the eventual elimination of measles.

China ; epidemiology ; Disease Outbreaks ; prevention & control ; Humans ; Incidence ; Measles ; epidemiology ; prevention & control ; Population Surveillance

OBJECTIVETo investigate the therapeutic effect of retro-auricular expanded flap and cartilage graft for reconstruction of traumatic ear defect.

METHODSFrom Aug. 2008 to Aug. 2010, 10 cases of traumatic ear defects were treated with retro-auricular expanded flap and cartilage graft. The expanders (volume, 50 ml) were implanted subcutaneously at retro-auricular area on the first stage. Then the expansion began at 1 week after operation until the volume reached 60 ml. On the second stage, the ear defects were reconstructed with the expanded flaps, rib cartilage framework, as well as skin graft.

RESULTSAll the wounds healed primarily without any complication. The patients were followed up for 6 months to 2 years with satisfactory cosmetic results. Good symmetry was achieved.

CONCLUSIONSIt is an effective and reliable method to reconstruct traumatic ear defect by retro-auricular expanded flap and cartilage graft.

Adolescent ; Adult ; Cartilage ; transplantation ; Child ; Ear, External ; injuries ; surgery ; Female ; Humans ; Male ; Ribs ; transplantation ; Surgical Flaps ; Tissue Expansion ; methods ; Treatment Outcome ; Young Adult

The first genetic linkage map of Salvia miltiorrhiza was constructed in 94 F1 individuals from an intraspecific cross by using simple sequence repeat (SSR), sequence-related amplified polymorphism (SRAP) and inter-simple sequence repeat (ISSR) markers. A total of 93 marker loci in the linkage map, consisting of 53 SSR, 38 SRAP and 2 ISSR locus were made up of eight linkage groups, covered a total length of 400.1 cm with an average distance of 4.3 cm per marker. The length of linkage groups varied from 3.3 -132 cm and each of them included 2-23 markers, separately. The result will provide important basis for QTL mapping, map-based cloning and association studies for commercially important traits in S. miltiorrhiza.
Chromosome Mapping ; Genetic Linkage ; Genetic Markers ; Microsatellite Repeats ; Polymorphism, Genetic ; Salvia miltiorrhiza ; genetics

Humans ; Immunoglobulin M ; Lung ; pathology ; Multiple Myeloma ; diagnosis ; pathology

OBJECTIVETo prepare the genetic engineering regulatory T cells (Treg) via the self-inactivating (SIN) lentiviral vectors carrying Foxp3 gene, and assay the phenotype and abilities of its proliferation and immunosuppression.

METHODSThe bicistronic SIN lentiviral transfer plasmid containing Foxp3 gene and internal ribosomal entry site-green fluorescent protein gene (IRES-GFP) was constructed. Human embryonic kidney 293T cells were co-transfected using liposome by lentiviral packing system, which included the packaging plasmid Delta NRF, the transfer plasmid and the envelope plasmid VSVG. The efficiency of gene transduction and the expressions of Foxp3, CD25, GITR, CTLA-4 of CD4(+)CD25(-) T cells, which were isolated by magnetic beads from the spleen, and then co-cultured with 293T cells, were detected by flow cytometry (FCM). The proliferative and suppressive capacities of transduced T cells were estimated by Cell Count Kit-8 (CCK-8) and the cytokine production was performed by ELISA.

RESULTSThe lentiviral transfer plasmid pXZ208-Foxp3-IRES-GFP was successfully constructed, the virus titers were above 10(6) IU/ml in the supernatant. pXZ208-IRES-GFP was used as control group. After cocultured, the CD4(+)CD25(-) T cells expressed significantly higher Foxp3, CD25, GITR and CTLA-4 in experimental group than in control group. Upon stimulation with anti-CD3 epsilon and APCs, the proliferative capacity of Foxp3-transduced T cells and the production of IL-2, IL-4, IL-10, IFN-gamma were significantly lower than those in control group (P < 0.01); Foxp3-transduced T cells also significantly inhibited the proliferation of CD4(+)CD25(-) T cells.

CONCLUSIONSThe genetic engineering Treg mediated by SIN lentiviral vectors are successfully constructed and their phenotype and function are similar to natural CD4(+)CD25(+) Treg.

Animals ; Cell Proliferation ; Cells, Cultured ; Forkhead Transcription Factors ; genetics ; metabolism ; Genetic Engineering ; Genetic Vectors ; HEK293 Cells ; Humans ; Lentivirus ; genetics ; Mice ; Mice, Inbred BALB C ; Phenotype ; T-Lymphocytes, Regulatory ; cytology ; immunology ; metabolism ; Transfection

OBJECTIVETo investigate the outcome of surgical treatment for gastrointestinal stromal tumor(GIST) and the associated factors.

METHODSA total of 277 patients with GIST underwent primary surgical treatment from January 1990 to February 2010 at the Cancer Center of Sun Yat-sen University. The clinical data were retrospectively reviewed and the pathological examination was reviewed. Follow-up was performed.

RESULTSThere were 176 males and 101 females. The age ranged from 20 to 81 years old (median,57). Location of the tumor included colorectum (n=28),small bowel(n=76), stomach(n=173). All the patients had en bloc resection, including local excision in 98 patients, organ resection in 64, and extended resection in 115. The 5-year survival rates were 83.5%, 71.9%, and 61.9% in the three different procedures, respectively, and the difference was not statistically significant(P>0.05). Cox model showed that the tumor size, recurrence and metastasis were independent risk factors associated with the prognosis in GIST patients(P<0.05).

CONCLUSIONSSurgery remains the major approach for gastrointestinal GIST. Complete resection is the principal treatment. Extensive resection or extended lymph nodes dissection is not associated with improved survival.

Adult ; Aged ; Aged, 80 and over ; Female ; Gastrointestinal Stromal Tumors ; diagnosis ; surgery ; Humans ; Male ; Middle Aged ; Prognosis ; Retrospective Studies ; Young Adult

OBJECTIVETo explore the expression of beta protein 1 (BP1) gene in adult acute leukemia (AL) and its relationship with acute leukemia.

METHODSExpression of BP1 gene mRNA was detected in 70 adult AL, 10 normal controls and HEL cell line, by reverse transcriptase-polymerase chain reaction (RT-PCR).

RESULTSNo detectable BP1 gene was found in peripheral blood or bone marrow cells of normal controls and 20 acute myeloid leukemia (AML) in complete remission (CR) stage. BP1 gene was highly expressed in HEL cell line, 57% (20/35) of AML and 80% (8/10) of AML-M(5) cases. BP1 gene could not be detected in adult acute lymphoid leukemia.

CONCLUSIONBP1 gene was highly expressed in AML. It might be used as a molecular marker of AML.

Acute Disease ; Adolescent ; Adult ; Female ; Genes, Homeobox ; Globins ; genetics ; Homeodomain Proteins ; genetics ; Humans ; Leukemia ; genetics ; Male ; Middle Aged ; Transcription Factors ; genetics

AIM:To investigate the effects of evodiamine on the growth and apoptosis of human hepatocellular carcinoma Huh7 cells,and to illustrate the molecular mechanism that evodiamine enhances antitumor activity of tumors nec -rosis factor-related apoptosis-inducing ligand(TRAIL)in Huh7 cells.METHODS: The cell viability was measured by MTT assay.The cell cycle distribution was analyzed by flow cytometry.The apoptosis rate was determined by TUNEL stai-ning.The protein levels of cell cycle-and apoptosis-related proteins were detected by Western blot analysis.RESULTS:Treatment of Huh7 cells with evodiamine reduced the cell viability(P<0.05).Evodiamine induced cell cycle arrest in G2/M phase by upregulation of p27,cyclin B1, cell division cycle protein 2(Cdc2)and p-Cdc2.Evodiamine triggered apoptosis accompanied by cleavage of caspase-3 and poly(ADP-ribose)polymerase(PARP).Combination of evodiamine with TRAIL significantly reduced the cell viability and increased cleavage of caspase -3 and PARP as compared with the use of each agent alone.Moreover,evodiamine increased the expression of death receptor 5(DR5)in the Huh7 cells.CON-CLUSION:Evodiamine inhibits the cell growth by reducing the cell viability and inducing cell cycle arrest.Evodiamine also triggers cell apoptosis and enhances the sensitivity of Huh 7 cells to TRAIL by upregulating the expression of DR5.