Cholesterol was originally identified as an element of biomembrane with a key role in the regulation of the stability of membrane. Recent researches had revealed that mortality was inversely related to cholesterol levels, and hypocholesterolemia correlated with a high risk of complication. Evidence is now accumulating that low serum cholesterol levels appear to be an independent predictor of short-term mortality.

ObjectiveTo evaluate the antitumor effects of lymphocytes from hepatic porta lymph node co cultured with staphylococcal enterotoxin A(SEA)?MethodsLymphocytes isolated from lymph node of 5 HCC patients were co cultured with SEA. The proliferation and cytotoxicity of the lymphocytes were observed. Flow cytometer was used to detect the expression of CD3?CD4 and CD8 on the surface of the lymphocytes. TNF ? and IFN ? released into the culture medium were measured by the method of ELISA. The results were compared with that yielded from TILs of the individual patients. ResultsCultured in the presence of SEA, there was a sharp rise of T cells, especially CD8 + cells. Cytotoxic activity was increased. TNF ? and IFN ? were predominantly produced in the first week.ConclusionsLymphocytes from lymph node activated by SEA were armed with an increased antitumor efficacy.

Objective To investigate the DNA methylation feature and DNA methylation regulation to its transcription and expression of O6-methylguanine-DNA methyltransferase gene (MGMT) in NaAsO2-treated HaCaT cells. Methods HaCaT cells were treated 72 hours at intervals and repeatedly by 3.13, 6.25,12.50, and 25.00 μmol/L NaAsO2, MGMT gene promoter region was amplified in the transcription initiation site - 329 - + 93 region by bisulfate-sequencing polymerase chain reaction (BSP), the mRNA transcription and the protein expression of MGMT was detected by real-time quantitative PCR and Western blotting. NaAsO2-untreated HaCaT cell was set as a blank control, and human epidermal squamous carcinoma cell strain A431 was set as a positive control. Results Among the groups of HaCaT cells treated with 3.13, 6.25, 12.50 and 25.00 μmol/L NaAsO2, the positive rates of the DNA methylation of promoter region in MGMT gene were 0.63%(l/160), 6.25% (10/160), 10.63%( 17/160) and 18.75% (30/160), respectively, and methylated CpG sites were mainly located in - 249--146 region relative to transcription start site. There was no DNA methylation in the blank control. There were significant differences between the blank control and the NaAsO2-treated cells (x2 = 76.687, P< 0.05). Average levels of MGMT mRNA were 1.518 31 ± 0.180 54, 1.425 22 ± 0.180 39, 1.014 54 ± 0.096 79 and 0.887 72 ± 0.020 00, respectively among the groups of HaCaT cells treated with 3.13, 6.25, 12.50 and 25.00 μmol/L NaAsO2, compared with the blank control cells(1.198 29 ± 0.159 97), there were significant differences(F = 37.359, P < 0.05). Average levels of MGMT protein were 1.174 47 ± 0.064 75, 0.848 83 ± 0.057 01, 0.471 63 ± 0.023 34 and 0.240 34 ± 0.014 43, respectively among the groups of HaCaT cells treated with 3.13, 6.25, 12.50 and 25.00 μmol/L NaAsO2, compared with the blank control cells (1.066 19 ± 0.061 24), there were significant differences(F = 20.687, P < 0.05). Conclusions Arsenic can cause CpC island hypermethylation in the promoter region of MGMT gene, which results in inhibited MGMT mRNA transcription and protein expression. It might be one of the important mechanisms of arsenic-induced skin lesion.

Abstract? AIM: Through the establishment of penetrating keratoplasty model of rats, to detect the role and its mechanism of immature dendritic cells with IL-10 gene modified.? METHODS: Allogeneic penetrating corneal transplantation in rat model was performed. SD rats were randomly divided into positive control group, GFP-DC group, 8-DC and IL-10-GFP-DC group.At 3d before keratoplasty, the rats were given tail intravenous injection with the same amount of PBS, bone marrow 8-DC ( DC had cultured for 8d ) from donor Wistar rats, GFP-DC after 48h transfection and IL-10-GFP-DC.Rats were observed under slit-lamp for corneal graft cases every day, and recorded rejection index and corneal graft survival time.At 14d after keratoplasty, pathologic and immunohistochemical examinations were performed.?RESULTS:Compared with GFP-DC group and 8-DC group, corneal graft survival time of IL-10-GFP-DC group was significantly longer ( P<0.01 ); at 14d after keratoplasty, corneal opacity, edema, neovascularization and rejection index of IL-10 -GFP-DC group were significantly lower (P<0.01).Pathological examination showed that in the three experimental groups corneal inflammation was lighter than the positive control group without significant central graft neovascularization. Immunohistochemistry showed: compared to the positive control group, GFP-DC group and 8-DC group, CD4+, CD8+, CD25+, IL-2+, NK+and NF-κB+positive cells in IL-10-GFP-DC group were lower(P<0.01).? CONCLUSION: After donor -derived immature dendritic cells pretreated, corneal graft survival was significantly prolonged, successfully induced corneal transplantation tolerance. CD4+, CD8+, CD25+, IL-2+, NK+and NF-κB+positive cells are involved in corneal allograft rejection regulation, IL-10-GFP-DC may reduce CD4+, CD8+, CD25+, IL-2+, NK+and NF-κB+positive cell infiltration, inhibit corneal transplant rejection.

0.05) except that IFN-? secretion of L-SEA group was lower than that of SEA group at 4th day (P

Objective The different distribution and clinical significance of mean platelet volume (MPV) in the healthy normoglycemic and impaired fasting glucose (IFG) individuals were discussed.Methods The 499 individuals including 184 male and 315 female,who had undergone health checks in Tianjin Huanhu Hospital during May and July 2012 were studied retrospectively.Average age is forty-five ( thirty-five to eighty).Subjects were categorized into four groups according to fasting plasma glucose ( FPG) levels:G1 (3.89 mmol/L≤FPG<5 mmol/L, n=125),G2(5 mmol/L≤FPG <5.5 mmol/L, n=121), G3(5.5 mmol/L≤FPG<6.1 mmol/L, n=142), and G4(6.1 mmol/L≤FPG<7 mmol/L, n=111).G1, G2, and G3 are defined as normal FPG groups and G 4 is defined as IFG group.Eighty-nine cases in the same age patients with type II diabetes mellitus group ( G5 ) were observed at the same time.Results The MPV increased with the increasing FPG levels in the following order:G1(8.62 ±0.77) fl, G2 (8.85 ±0.80) fl, G3(8.90 ±0.69) fl,G4(9.14 ±0.78) fl and G5(12.03 ±1.42) fl.MPV[(12.03 ±1.42) fl] of type Ⅱdiabetes mellitus group(G5) was higher than that in the IFG group (G4)[(9.14 ±0.78) fl] and normal FPG groups[G1(8.62 ±0.77) fl,G2(8.85 ±0.80) fl,G3(8.90 ±0.69) fl] (F=12.773,P<0.01);MPV of the IFG group [ ( 9.14 ±0.78 ) fl ] was significantly higher than that in normal FPG groups [ G1 (8.62 ±0.77) fl,G2(8.85 ±0.80) fl,G3(8.90 ±0.69) fl] (F=12.773,P<0.01 for G4 vs.G1 and G2, P<0.05 for G4 vs.G3) ;MPV in the high-normal glucose group (G3) [(8.90 ±0.69) fl] was obviously higher than that in the low-normal glucose group (G1) [(8.62 ±0.77) fl] (F=12.773,P<0.05);MPV was positively associated with FPG in normal FPG groups ,IFG group and type Ⅱ diabetes mellitus group (G1-3:r=0.22, P<0.05;G4:r=0.26, P<0.01;G5:r=0.29, P<0.01).Conclusions Significant difference of MPV was observed in population of different FPG levels.Especially, MPV in IFG group was evidently higher than that in normal FPG group and was positively associated with FPG levels.

AIM: To systemically evaluate the clinical efficacy and safety of intraocular implants for vitreous retinal surgery.METHODS: We performed a comprehensive search for studies reporting vitreous surgery with intraocular implants randomized controlled and a retrospective controlled clinical trials from China Hownet ( CNKI ), Wanfang database, and VIP literature database. Studies obtained from those database were filtered according to the criteria, and data were retrieved from eligible studies for further analysis. Then we performed a meta-analysis to evaluate the efficacy and safety of intraocular implants using comprehensive Meta - analysis software version 2 (Biostat, Englewood, NJ).
RESULTS: In total 36 studies were recruited for our Meta - analysis, including 5 092 cases. Meta analysis showed: 1) regarding the efficacy of repairing the retinal detachment, silicone oil was a better intraocular implants than C3 F8(OR= 1. 76; 95% CI: 1. 19-2. 60, P = 0. 0047) and SF6( OR = 4. 68; 95% CI: 1. 48 - 14. 81, P = 0. 0087); 2) regarding the risk of postoperative cataract, silicone oil showed significant higher risk than BBS (OR = 3. 24; 95%CI: 2. 10-4. 99, P= 1. 09 e-7), and C3 F8(OR= 3. 03; 95% CI:1. 50 - 6. 10, P = 0. 0019 ); 3 ) regarding the risk of postoperative intraocular pressure, silicone oil showed significant higher risk than BBS (OR= 6. 74; 95% CI: 3. 38-13. 41, P= 5. 67 e-08), and C3 F8 also showed a higher risk than BBS (OR= 4. 79; 95% CI: 2. 37-9. 68, P = 1. 29 e-05). In addition, silicone oil showed significant lower risk as compared with heavy silicone oil (OR= 0. 16; 95% CI: 0. 08-0. 53, P= 0. 0026).
CONCLUSION: The intraocular implants for the treatment of retinal detachment in vitreous retinal surgery are mainly divided into two major categories, liquid and gas implants. The silicone oil, a major liquid implant, shows higher efficacy in terms of treating retinal detachment than the gas implants. However, the silicone oil is associated with a higher risk of postoperative cataract and intraocular pressure as compared with gas implants.

Objective To observe the regulating effect of inhaling glucocorticoid on imbalance of IL-4/interferon-?(IFN-?) cytokines in children with first onset wheezing .Methods IL-4 and IFN-? levels were examined in separated serum of 60 children wheezing with first onset wheezing,they were divided into abnormal level of IL-4/IFN-? group (n=38) and normal level of IL-4/IFN-? group(n=22,group C) depending on the level of IL-4/IFN-?,and 38 cases with abnormal level of IL-4/IFN-? were randomly divided into group A and B.Group B and C were given routine treatment without intervening treatment,while group A inhaled beclomethasone dipropionate aerosols for 3 months after routine treatment.Twenty healthy children for routine physical examinations in the same period were selected as healthy control group,who were examined for IL-4 and IFN-? with the same methods.Results Before treatment,the levels of IL-4 and IL-4/IFN-? in group A and B were significantly higher than those in group C and healthy control group(Pa

Objective To investigate the diagnostic value of thinprep cytologic test(TCT) and electronic colposcope(EC) examination in patients with subclinical human papillomavirus(HPV) infection(SPI) and cervical intraepithelial neoplasia(CIN),and explore its concordance with pathologic diagnosis. Methods A total of 1 125 females were examined with TCT,744 of whom diagnosed with abnormality by TCT or suspect of cervical lesions were examined with EC,and multiple punch biopsies were performed in 706 of those with abnomal EC images and suspected diseases. ResultsThe sensitivity of TCT,EC examination and the combined examination of TCT and EC for SPI and CIN were 88.74%,88.79% and 90.63%,respectively,the specificity 85.44%,80.38% and 96.41%,respectively,the positive predictive value 74.06%,68.90% and 91.10%,respectively,and the negative predictive value 94.19%,93.61% and 96.21%,respectively.By the combination of the two examinations,the specificity and positive predictive value were significantly increased(P