[Risk Factors for Post-surgery Recurrence of Multiple Pulmonary Cystic Echinococcosis].

Clinical information of patients with multiple pulmonary cystic echinococcosis who received surgery in the Department of Thoracic Surgery of the Hospital from January 2005 to October 2014 was collected. Multivariate logistic regression analysis was used to analyze the predisposing factors for post-surgery recurrence of multiple pulmonary cystic echinococcosis. Among the 73 cases of multiple pulmonary cystic echinococcosis, 40 were males and 33 were females, with a male-to-female ratio of 1.21 : 1. The average age of patients was 37.6 years. All the patients reported a living history in pastoral areas or contacts with dogs. Thirty-eight patients were administered with albendazole tablets or liposomal albendazole for 3 to 12 months after surgery. Recurrence occurred in 6 cases, with a rate of 8.2%. Multivariate logistic regression analysis revealed the preoperative rupture of hydatid cyst to be the risk factor for post-surgery recurrence. The administration of anti-hydatid drugs after surgery plays a protective role against recurrence, and may reduce the risk of recurrence.

Screening aberrant methylation profile in esophageal squamous cell carcinoma for Kazakhs in Xinjiang area of China.

To screen the aberrant methylation genes in esophageal squamous cell carcinoma (ESCC) for Kazakh nationality in Xinjiang, and the aberrant DNA methylation genes pattern provides a clue for deeply study on ESCC mechanism. Illumina Human Methylation 450 K chip was used to screen the genome-wide methylation on six cancer tissues and six adjacent normal tissues of ESCC in Kazakh people. Meanwhile, mRNA library was constructed by scanning the RNA expression on two cancer tissues and two adjacent normal tissues by Hiseq2000. After association study between the methylation profile and expression profile, aberrant DNA methylated genes were screened out and were uploaded to the GoMiner and the KEGG, completing the bioinformatic analysis. There were 227 hypermethylation genes and 6 hypomethylated genes in cancer tissue, mRNA expression varied from 0.0312 to 8,192 in cancer tissues compared with 0.0312-1,024 in adjacent normal tissues. The correlation study indicated that there were 10 loci in 10 down-regulated genes of hypermethylated in negative correlation group. Additionally, there were 11 loci in 10 up-regulated genes in negative group. Using GoMiner to do GO analysis on aberrant DNA methylation genes, RAPGEFL1, TP53AIP1, KIAA1522, DUOXA2 were identified not involved in any biological processes. ALDH1L1 participated in folinic acid catabolism and CAPN1 positively regulated the cell proliferation. And ALDH1L1 involved in one carbon metabolism and CAPN1 participate in the apoptosis process by applying pathway analysis. The aberrant DNA methylation profiles were established and provided a clue for deeply study on ESCC of Kazakh nationality.

Relationship between HLA-G gene polymorphism and the susceptibility of esophageal cancer in Kazakh and Han nationality in Xinjiang.

OBJECTIVE: To explore the association between polymorphism of the human leukocyte antigen G (HLA-G) and susceptibility of esophageal carcinoma (EC) in Kazakh and Han nationality in Xinjiang. METHODS: The 14 bp deletion/insertion (rs16375) and 0105N (rs41557518) of HLA-G genotyping were determined by PCR and PCR-RFLP, respectively in 239 patients and 467 controls. RESULTS: There was a 2.69-fold (P(c) = 0.04, 95% CI: 1.30-5.55) increased risk of developing EC in individuals with the -14 bp/-14 bp genotype (rs16375) compared with those carrying +14 bp/+14 bp genotype in Kazakh after Bonferroni correction, there was no association of 0105N (rs41557518) both in Kazak and Han population. And there was a 2.82-fold (P(c) = 0.04, 95% CI: 1.32-6.04) increased risk of developing EC in individuals with -14 bp/-14 bp and C/C genotypes compared with those who had +14 bp/+14 bp and C/C genotypes in Kazakh. CONCLUSIONS: The study demonstrates that EC is associated with polymorphism of HLA-G14 bp in Chinese Kazak population. The 14 bp deletion/insertion of HLA-G gene may play a role in EC susceptibility of Kazakh.

Study on the relationship between TagSNPs and haplotype of hCHK2 and esophageal cancer in Kazakh and Han in Xinjiang.

AIM OF THE STUDY: To determine the association of hCHK2 rs2278022, rs2602431, and rs2970077 polymorphisms and haplotypes with susceptibility to esophageal cancer in Kazakh and Han in Xinjiang Uygur Autonomous Region. MATERIAL AND METHODS: Molecular epidemiology was carried out on 239 cases of esophageal cancer (132 Kazakh, 107 Han) and 513 controls (309 Kazakh, 204 Han) of Xinjiang. Polymorphisms of hCHK2 at rs2278022, rs2602431 and rs2970077 were analyzed by polymerase chain reaction-ligase detection reaction (PCR-LDR). Haplotypes were estimated by the SHEsis software. Statistical differences in genotype/haplotype frequencies, and frequencies between the case group and the control group were estimated. RESULTS: 1) No significant difference was observed in the frequency of hCHK2 at rs2278022, rs2602431 and rs2970077 between the cases and controls in Kazakh and Han (P > 0.05); 2) In Kazakh and Han, the distribution of haplotypes was not significantly different between esophageal cancer cases and controls (P > 0.05). CONCLUSIONS: Polymorphisms of hCHK2 at rs2278022, rs2602431 and rs2970077 and haplotypes are unlikely to be associated with the susceptibility to esophageal cancer in Kazakh and Han.

[The clinical analysis of 93 children with pulmonary echinococcus].

OBJECTIVE: To approach the clinical characteristics and surgical treatment of children with pulmonary echinococcus. METHODS: Retrospective analysis of child patients with pulmonary echinococcus from January 1980 to December 2008 was carried out, associated with clinical manifestations, diagnosis and treatment, operation methods (complete removal of endocyst and cystectomy with needle aspiration), prognosis and recurrence. There were 93 patients (54 male and 39 female) aged from 2 to 14 years. There were 82 cases lived in the echinococcosis pulmonary endemic areas, accounting for 88.1% (82/93), and 79 cases of patients had obvious contact with dogs or sheep, accounting for 84.9% (79/93). There were 68 cases with simple pulmonary echinococcus accounted for 73.1% (68/93), 25 cases suffered from complexity pulmonary hydatid, accounting for 26.9% (25/93). RESULTS: All patients were cured or improved after surgery except one dead. Six cases got postoperative pulmonary infection, 3 cases had wound infection, 1 case suffered from bile-pleura fistula. There were 76 patients (81.7%) followed up for 1 to 10 years after surgery. Five cases had recurrence, the recurrence rate was 5.4% (5/93). CONCLUSIONS: The clinical symptoms of pulmonary echinococcus in children is not typical, misdiagnosis and missed diagnosis take place easily. Complete removal of endocyst has low postoperative complications and lower relapse rate.

[Expression of MCP-1 in the patients of chronic hepatitis B complicated with nonalcoholic fatty liver disease].

AIM: To investigate the expression level of monocyte chemoattractant protein-1 (MCP-1) in the liver of the patients with chronic hepatitis B (CHB) complicated with non-alcoholic fatty liver diseases (NAFLD). METHODS: The study enrolled 21 CHB with NAFLD patients and 46 CHB without NAFLD patients as the controls. Real-time quantitative reverse transcriptase-polymerase chain reaction (QRT-PCR) and immunohistochemistry (IHC) were applied to detect the expression of MCP-1 at the mRNA and protein levels in the liver tissues, respectively. Non-parametric Mann-Whitney test was used to analyze the difference between the CHB patients with and without NAFLD. RESULTS: The mRNA relative expression level of MCP-1 in CHB+NAFLD group was 0.034 (0.024-0.058), higher than that in the control group 0.016 (0.012-0.024). The immunohistochemical score was 8.7±2.5 in CHB+NAFLD group and 6.2±3.5 in the control group. The difference in MCP-1 expression at the both protein and mRNA levels was significant statistically between the two groups (P<0.01). CONCLUSION: MCP-1 expression level in the liver is higher in CHB with NAFLD patients than that in CHB without NAFLD patients.