Objective To study the influence of hemodialysis on inflammatory state and immune function by analyzing the change of serum protein components in uremic patients before and after hemodialysis.Methods 75 cases of uremic patients confirmed by the Nephrology from October 2013 to May 2014 were selected as the observation group,and 15 healthy volun-teers at the same time as the control group.Then the serum protein electrophoresis pattern of observation group beford the first hemodialysis,after the first hemodialysis,after one month’s treatment and control group were compared with each oth-er.Results In the observation group before and after the first hemodialysis,the ALB levels were lower,α1 and α2 globulin levels were higher than those in control group.There was a statistically significant between the observation group before and after the first hemodialysis and control group (P <0.001).After the first hemodialysis,there were differences inα1 globulin levels compared with before the first hemodialysis (P <0.01).ALB was no significant difference after one month’s hemodi-alysis compared with before the first hemodialysis,andα1,α2 globulin were significantly reduced and the difference was sta-tistically significant (P <0.001),ALB was lower than the control group and was statistically significant (P <0.001).After one month’s hemodialysis,the levels ofγglobulin were higher than those in control group,before the first hemodialysis and after the first hemodialysis.There were significant differences (P <0.001 or P <0.01).Conclusion Regular and effective hemodialysis can improve inflammatory state and immune function of uremic patients.

Objective To investigate the methylation patterns of secreted apoptosis-related protein 2 (SARP2) gene extron 1 in patients with pancreatic adenocarcinoma and its clinical value in diagnosis and prognosis. Methods The samples were collected from 23 patients with pancreatic carcinoma, 6 with chronic pancreatitis and 7 normal controls. The extracted DNA was treated with sodium bisulfite and analyzed by PCR for methylation patterns in the CpG islands of SARP2 gene. Results The incidence of methylation in CpG islands of SARP2 gene was significant higher in pancreatic carcinoma (37.9%) than that in paracaneerous (15.2%), pancreatic (15.2%) and normal (0%) tissues (P<0.05). The methylation in some CpG sites (region 1) had specificity to pancreatic cancer. The methylation of SARP2 gene was not associated with sex, age, tumor size, stage and metastasis. But the hypermethylation of CpG was related with the tumor size and differentiation. Conclusions The distribution of CpG hypermethylation in SARP2 gene extron 1 is not equilibrium. Some CpG hypermethylation has specificity to pancreatic carcinoma, and may be served as potential targets as well as prognosis indexes for pancreatic cancer.

Objective To investigate the RADIL mRNA expression in pancreatic carcinoma and to evaluate its clinical significance.Methods Fluoesecent quantitative PCR (FQ-PCR) was used to detect the RADIL mRNA expression in 40 patients with pancreatic carcinoma and adjacent tissue and in 5 healthy adult with normal pancreatic tissue and to observe its relationship with clinicopathologic parameters.Results RADIL mRNA was expressed in pancreatic carcinoma and adjacent tissue, as well as normal pancreatic tissue, and the relative expression was 2.263 ± 3.826, 5.425 ± 8.858 and 8.559 ± 4.214, respectively.There was statistically significant difference among the three groups (P ＜0.05 ).RADIL mRNA expression was closely related with the metastasis and differentiation grade ( r = -0.312 and -0.294, P ＜ 0.05 ), however, it was not significantly related to tumor site, tumor size, CA19-9, TNM staging, sex and age.Conclusions RADIL gene may have an inhibitory effect on the pancreatic cancer.

Objective To investigate the methylation status of PCDH8 gene in pancreatic carcinoma.Methods Methylation of PCDH8 gene in 2 samples of normal pancreatic tissues and 6 pancreatic carcinoma cell lines (PANC1, ASPC1, BxPC3, CFPAC, PaTu8988 and SW1990) was detected by the methylationspecific PCR (MSP) method. The expression of PCDH8 mRNA was detected with 5-Aza-2-deoxycytidine (5-Aza-dC) treatment, a kind of DNA methyltransferase (DNMT) inhibitor in 6 pancreatic carcinoma cell lines by real-time-PCR. Results The methylation of PCDH8 gene was not detected in normal tissues, while it was partially methylated in PANC1, BxPC3, CFPAC and it was totally methylated in PaTu8988, ASPC1, SW1990.PCDH8 mRNA was expressed in PANC1, SW1990, PaTu8988 and the relative quantities of mRNA expression (RQ) were 1.576 ± 0.648, 0.013 ± 0.008, 0.002 ± 0.001; PCDH8 mRNA was not expressed in BxPC3,CFPAC, ASPC1. After 5-Aza-dC treatment, PCDH8 mRNA was expressed in PANC1, ASPC1, BxPC3,CFPAC, PaTu8988, SW1990 and the relative quantities of mRNA expression all significantly increased, and they were 7. 463 ± 2.628, 10. 696 ± 1.539, 7.852 ± 2.762,421.815 ± 1.493, 118.595 ± 4.089, 6.690 ±1.884. Conclusions The methylation of PCDH8 gene may be the major mechanism of down-regulated expression of PCDH8 gene in pancreatic carcinoma.

Objective To assess the methylation patterns in CpG islands of SPARC genes and its relationship with clinicopathological parameters. Methods Bisulfite treatment of genomie DNA and sequencing analysis was used to study methylation patterns in the CpG islands of SPARC genes in fresh tissues from 6 cases of chronic pancreatitis, 6 normal pancreatic tissues, 17 pancreatic adenocarcinoma and the cancer adjacent tissues, as well as 6 normaI blood samples for normal control, and compared the results with clinicopathological parameters. Results WBC DNA showed no methylation of SPARC gene CpG islands. The methylation rates in CpG islands of SPARC genes in pancreatic adenocarcinoma, the cancer adjacent tissues, chronic pancreatitis and normal pancreatic groups (2, 3, 4, 5, 6, 7 CpG sites) were 61.6%, 47.1%, 37.5%, 24.7%, respectively. The methylation rates in CpG islands (1, 8, 9, 10, 11, 12 sites) were 52.0%, 28.7%, 16.7% and 0. The difference were statistically significant between the pancreatic adenocarcinoma and chronic pancreatitis as well as normal pancreas groups (P＜0.001), and the difference were not statistically significant between the pancreatic adenocarcinoma and the cancer adjacent tissues. CpG hypermethylation were not related to risk factors such as smoking, alcohol, history of CP, the tumor size, differentiation and TNM staging, lymph node metastasis. Conclusions CpG in SPARC gene extron 1 was hypermethylated in pancreatic cancer, and this may be an early event in the development of pancreatic cancer.

Objective To investigate the diagnostic value of measurement of SARP2 methylation in peripheral blood for detection of pancreatic cancer in human. Methods Peripheral vein blood of 12 patients with primary pancreatic cancers, 10 patients with chronic pancreatitis and 6 health volunteers were collected. Serum free DNA were extracted from blood samples, and were modified with bisulfate, and SARP2 gene extron 1 were amplified through BSP and sequencing of the production. Results There were 12 patients (83 %) with pancreatic cancer and 10 patients (40%) with chronic pancreatitis had obvious methylation in SARP2 gene in peripheral blood. The rate of CpG methylation in SARP2 gene extron 1 of pancreatic cancer, chronic pancreatitis and health volunteers was 16. 8% , 10. 4% and 2. 2% respectively. There was statistically significant difference among the three groups (P<0.01 or P< 0.05). Conclusions Aberrant methylation of SARP2 gene could be detected in peripheral blood in patients with pancreatic cancer, the detection of SARP2 gene methylation may have potential clinical implication for diagnosis of pancreatic cancer.

Objective To evaluate the diagnosis and emergency surgical treatment of ruptured intracerebral aneurysms (RIAs) accompanied with intracerebral hematomas (ICH).Methods A retrospective study was performed on the clinical data of 23 patients ofICH following RIAs,admitted to our hospital from May 2009 to September 2013.CTA was performed in 17 patients and cranial CT in 6 before the operation.The emergent operations were performed in all the patients within 24 hours of aneurysm rupture; pterion approach was adopted to clip the arterial aneurysm and clear intracerebral hematoma.Results According to Glasgow outcome scale (GOS) scores,4 recovered well,6 were mildly disabled,8 were severely disabled and 5 died.After follow-up for 3.3 years in 15 patients,no further bleeding occurred.Eight aneurysms were re-checked by CTA,7 aneurysms were completely clipped and 1 aneurysm had residual neck.Conclusions Preoperative CTA is essential for the correct diagnosis of ICHs due to RIA.The curative effect of the emergent operation can improve the survival rate and prognosis of patients with RIA accompanied with ICH.

Objective To propose the blood detection strategies for human immunodeficiency virus (HIV) among blood donors, and provide reference for the detection, early diagnosis and transmission blocking of HIV. Methods A total of 117 987 blood samples from blood donors were screened using the third- and fourth-generation ELISA HIV detection reagents. Western blot analysis was used to verify the reactive results of the third-generation reagent alone, or both the third-generation and fourth-generation reagents. HIV nucleic acid test was carried out for those with negative test results of the third- and fourth-generation reagents. For those with positive results of the fourth-generation reagent only, nucleic acid test followed by a confirmatory test by Western blot analysis was carried out. Results 117 987 blood samples from blood donors were tested by different reagents. Among them, 55 were tested positive by both the third- and fourth-generation HIV detection reagents at the same time, accounting for 0.047% and 54 cases were confirmed HIV-positive by Western blot analysis, and 1 case was indeterminate, then turned positive during follow-up testing. 26 cases were positive by the third-generation reagent test alone, among which 24 cases were negative and 2 were indeterminate by Western blot analysis. The band types were p24 and gp160 respectively detected by Western blot analysis, and were confirmed to be HIV negative in follow-up testing. 31 cases were positive by the fourth-generation HIV reagent alone, among which 29 were negative by nucleic acid test, and 2 were positive according to the nucleic acid test.Western blot analysis was used to verify that the two cases were negative. However, after 2~4 weeks, the results turned positive when the blood sample was retested by Western blot analysis during the follow-up of these two cases. All the specimens that were tested negative by both the third- and fourth-generation HIV reagents were validated negative by HIV nucleic acid test. Conclusion A combined strategy with both third- and fourth-generation HIV detection reagents can play a complementary role in blood screening among blood donors. The application of complementary tests, such as nucleic acid test and Western blot analysis, can further improve the safety of blood supply, thus contributing to the early diagnosis, prevention, transmission and treatment of blood donors potentially infected by HIV.
Humans ; HIV Infections/diagnosis* ; HIV Antibodies ; Blood Donors ; HIV-1 ; Blotting, Western ; Nucleic Acids