Aged ; Aging ; Health Services for the Aged ; Humans

China ; Chronic Disease ; prevention & control ; Humans ; Public Health Practice

Computer-Assisted Instruction ; Education, Medical ; Internet ; Language ; Medicine, Chinese Traditional

Objective To investigate the expression of human leukocyte antigen-G5 (HLA-G5) in healthy Chinese people and the recipients of renal and liver transplantation. The regulating mechanism of the expression of HLA-G5 was discussed by comparing the expression of HLA-G5 in the healthy people with that in renal and liver transplantation recipients. Furthermore, the changing regularity with time was studied by kinesis supervising the expression of HLA-G5 in renal and liver transplantation recipients. Methods The peripheral blood samples (3ml) from 30 health people, 50 recipients of liver transplantation (liver function was stable 3 months after liver transplantation) and 50 recipients of renal transplantation (renal function was stable 3 months after renal transplantation) were collected. Peripheral blood samples were also collected in same amount from 33 recipients of renal and liver transplantation before operation and 1, 4 and 12 weeks and 1 year after operation. The HLA-G5 of all serum samples was analyzed by ELISA. Results For 30 healthy people, the OD value of HLA-G5 in 28 people was below 0.5, for which the contents were defined as 0.0ng/ml according to standard and the contents for the other 2 people were 8ng/ml and 9ng/ml, respectively. 16 of 50 recipients undergone liver transplantation were positive for the expression of HLA-G5, the positive ratio was 32%. The contents in 4 recipients were higher than 30ng/ml. 10 of 50 recipients of renal transplantation were positive in the expression of HLA-G5, the positive ratio was 20%. The contents in one recipient were higher than 25ng/ml. The average contents in sera of healthy people, recipients of liver or renal transplantation were 0.56?0.20ng/ml, 8.34?1.50ng/ml and 3.26?0.25ng/ml, respectively. For 33 recipients of liver or renal transplantation, the expression of HLA-G5 was detected by ELISA, and it was found that one recipient the expression of HLA-G5 was positive before operation and within 1 week after operation; expression of HLA-G5 was positive in 4 recipients within 4 weeks after operation; expression of HLA-G5 was positive within 12 weeks after operation in 12 recipients; and the expression of HLA-G5 was positive within 1 year after operation in 11 recipients. Conclusion The expression of HLA-G5 in healthy people is low. There are correlation between the expression of HLA-G5 and immunotolerance to transplants. In minor rejection condition after transplantation, there are different expression levels of HLA-G5, and it is higher after liver transplantation than!renal transplantation. The time for expression of HLA-G5 corresponds with the time for mRNA of HLA-G5 transcription into protein, and it is about 15-60 days, with 60 days as the peak time.

Objective To evaluate the effects of antiviral therapy in prevention of tumor recurrence after curative treatment for patients with hepatocellular carcinoma (HCC). Methods Between Apr. 2006 and Jun. 2009,60 patients undergone curative treatment for HCC were enrolled in the retrospective analysis. Patients were assigned into four groups (15 each):patients in groupⅠ(serum HBV-DNA≥1.0?105copies/ml) and groupⅡ(serum HBV-DNA

Objective To investigate the effect of ginkgo diterpene lactones on hypoxia-induced apoptosis and angiogenesis of human umbilical vein endothelial cells (HUVECs) and the related molecular mechanisms. Methods HUVECs were cultured under hypoxia for 24 h, and then treated with ginkgo diterpene lactones (low-dose: 6.25 mg/L and high-dose: 25.00 mg/L). MTT assay was used to detect the cell activity. Flow cytometry was used to detect the apoptosis of HUVECs. Transwell assay was employed to detect the migration of HUVECs. Quantitative real-time polymerase chain reaction and Western blotting were used to test the expression levels of mRNA and protein of hypoxia-inducible factor 1α (HIF-1α), apoptosis-related genes (B-cell lymphoma 2［Bcl-2］and B-cell lymphoma 2-related X protein［Bax］), and angiogenesis-related genes (vascular endothelial growth factor［VEGF］and transforming growth factor β［TGF-β］). Results Compared with the normal group, the HUVEC activity was significantly decreased after exposed to hypoxia for 24 h (P＜0.05), and the apoptosis rate of HUVECs and mRNA and protein expression levels of HIF-1α were significantly higher (all P＜0.05). The cell activity and migration ability of HUVECs were significantly higher in the low- and high-dose ginkgo diterpene lactones groups than those in the hypoxia group (all P＜0.05), and the apoptosis rates of HUVECs were significantly lower than those in the hypoxia group (both P＜0.05). Meanwhile, the cell activity and migration ability were significantly higher in the high-dose group than those in the low-dose group (both P＜0.05), and the apoptosis rate was significantly lower than that in the low-dose group (P＜0.05). The mRNA and protein expression levels of HIF-1α and Bax were lower in the low- and high-dose ginkgo diterpene lactones groups than those in the hypoxia group, and the mRNA and protein expression levels of Bcl-2, VEGF and TGF-β were higher than those in the hypoxia group; and the expression changes of the above genes were more significant in the high-dose group. Conclusion Ginkgo diterpene lactones can improve hypoxia-induced apoptosis and angiogenesis of HUVECs by regulating the expression levels of HIF-1α and apoptosis- and angiogenesis-related genes, and it might be used as a new agent to treat anoxic vascular diseases.

Objective To investigate the relationship between proteinuria components and the severity of pregnancy induced hypertension syndrome (PIH), the unconcentrated urine samples from patients with PIH were analyzed on proteinuria components by electrophoresis.Methods Proteinuria components were analyzed by sodium dodecyl sulfate-agarose gel electrophoresis (SDS-AGE) in unconcentrated urine samples from PIH patients (PIH group,n=114) and normal third trimester pregnant women (control group,n=110).Results Eleven kinds of urinary protein were detected in the PIH group and four in the control group. The results showed positive relationship between the urine protein component complexity and the severity of PIH (P

Acupuncture Points ; Acupuncture Therapy ; methods ; Adult ; Anovulation ; therapy ; Female ; Humans ; Infertility, Female ; therapy ; Ovulation Induction

Objective To investigate the mechanism of protective effects of resveratrol on tissueengineered cartilage.Methods The chondrogenesis of alginate-encapsulated bone marrow mesenchymal stem cells (BMSCs) were evaluated by toluidine blue staining and immunostain.The morphology of BMSCs-derived chondrocytes cultured on chitosan-gelatin scaffolds (CGS) was evaluated by scanning electron microscope and laser confocal microscope.When these cells on CGS were pre-stimulated with interleukin-1β (IL-1β) or cotreated with IL-1β and resveratrol in the absence and presence of specific β1-integrin blocking antibody,collagen type Ⅱ,aggrecan,matrix metalloproteinase-13 (MMP-13) expression,and the translocation of nuclear factor kappaB (NF-κB) were analyzed by Western blotting.ANOVA was used for statistical analysis.Results Alginate bead culture plus conditional medium together could induce the cartilage-specific collagen type Ⅱ,aggrecan expression and extracellular matrix accumulation in differentiated chondrocytes.CGS supported differentiated cell attachment,proliferation,and migration.When those cells cultured on CGS were stimulated with IL-1β alone,collagen type Ⅱ and aggrecan expression was inhibited.However,MMP-13 expression increased.By Western blotting semi-quantitative analysis,the expression level of cartilage-specific collagen type Ⅱ of the control group was 0.484±0.006; the expression level of resveratrol intervention group was 0.474±0.014.The difference between these two groups was not statistically significant (P＞0.05).The expression level of the IL-1β intervention group reduced to 0.155±0.009,which was statistically significant different from the above two groups(P＜0.05).Resveratrol could antagonist the negative effect of IL-1β,and increase collagen type Ⅱ to 0.468±0.014,the difference between these two was statistically significant (P＜0.05),and no significant difference when compared to the control group (P＞0.05).Specific β1-integrin blocking antibody could abrogate these effects of resveratrol,decrease collagen Ⅱ expression to 0.169±0.011,the difference was significant (P＜0.05),but there was no difference when compared to the IL-1β group (P＞0.05).Aggrecan semi-quantitative expression has the same trend in the expression of type Ⅱ collagen while the expression of MMP-13,NF-κB had the reversal trend.These indicated that the resveratrol reversed the catabolic effects by reducing the nuclear translocation of NF-κB.Specific β1-integrin blocking antibody abrogated these effects of resveratrol.Conclusion Resveratrol,by regulating β1-integrin,acts as a NF-κB nuclear trans-location inhibitor to protect tissue-engineered cartilage.

Objective To study the preventive effects of vitamin K2 on tumor recurrence in patients with hepatocellalar carcinoma (HCC) after radical resection. Methods The clinical data of 50 patients with HCC who received radical resection from March 2006 to March 2007 in No. 181 Hospital of PLA were analyzed retrospec-tively. All the patients were divided into 2 groups according to the random number table. Twenty-six patients in vitamin K2 group were administered with menatetrenone (45 mg per day), and the rest 24 pateints were in the control group. The accumulative and tumor-free survival rates, differences between the 2 groups, multivariate factors for prognosis were analyzed by Kaplan-Meier curve, Log-rank test and Cox regression model, respectively. Results During a period of 36 month follow-up, 10 patients died and 28 had tunor recurrence. The 1-, 2-, 3-year accumulative survival rates were 96%, 92% and 83% in vitamin K2 group, and 96%, 82% and 63% in control group (χ2 = 3.61, P > 0.05). The 1-, 2-, 3-year tumor-free survival rates were 92%, 60% and 38% in vitamin K2 group, and 75%, 42% and 12% in control group, with significant difference between the 2 groups (χ2 =5.61, P <0.05). Univariate and multivariate Cox proportional hazard analysis showed that without taking menate-trenone, the preoperative level of alpha fetoprotein (AFP) ≥800 μg/L and vascular invasion were the indepen-dent risk factors for tumor recurrence. Conclusions Vitamin K2 has a suppressive effect on tumor recurrence of HCC, while patients with AFP≥800 μg/L before operation or with vascular invasion have poor prognosis.