1.Construction of evaluation index system and development of quality of life scale for liver and kidney transplant recipients
Xiaozhou YE ; Chenyang BIAN ; Jipin JIANG ; Linguo WU ; Zhiyong GUO ; Jian WU ; Zhigui ZENG ; Wei GAO ; Yizhen YU
Chinese Journal of Organ Transplantation 2016;37(9):528-536
Objective To Establish an evaluation system of the quality of life for Chinese liver and kidney transplant recipients,and develop a specialized scale to measure the quality of life (QOL)for such recipients preliminarily.Methods By combining subjective and objective methods,this study determined the evaluation system and created items of QOL scale based on literature analysis,Delphi method (expert consultation),interviews,and experience of researchers.Then,a nationwide clinical survey was conducted on 5 Level Ⅲ Class A hospitals.454 valid questionnaires were collected,including 153 from liver recipients,and 301 from kidney recipients.Subjective statistical methods such as critical Ratio method,correlation coefficient method,dispersion tendency method,and exploratory factor analysis were used for selection of questionnaire items.Results The study established an evaluation system of QOL for liver and kidney transplant recipients,including 4 primary indexes and 12 secondary indexes,and developed QOL scales that were appropriate for liver and kidney transplant recipients respectively.Conclusions The structure of QOL scale for liver and kidney transplant recipients was basically consistent with theoretical assumption.The QOL scale for patients showed good reliability and validity,therefore,it can fully reflect the quality of their life.
2. Effect of HIF-2α on regulating CDCP1 to promote hepatocellular carcinoma metastasis
Manqing CAO ; Junrong GAO ; Jiafei HUANG ; Abin YOU ; Zhigui GUO ; Hongyuan ZHOU ; Feng FANG ; Wei ZHANG ; Xiaolin ZHU ; Ti ZHANG
Chinese Journal of Oncology 2017;39(1):18-23
Objective:
To investigate the effect of hypoxia inducible factor 2α (HIF-2α) on regulating CUB domain-containing protein 1 (CDCP1) and its role in hepatocellular carcinoma metastasis.
Methods:
HIF-2α-knocked down and HIF-2α-stably overexpressing cells (MHCC97H) were prepared by small interfering RNA (siRNA) and lentivirus transfection, respectively. The expression of CDCP1 protein and mRNA in the above cells was detected by western blot and real-time PCR. The effect of HIF-2α on cell invasion ability was determined by Transwell assay. Furthermore, immunohistochemical staining was performed to detect the expression of CDCP1 in human HCC tissue samples.
Results:
Both HIF-2α and CDCP1 were induced under hypoxic conditions. The activation of CDCP1 under hypoxic conditions was dependent on the expression of HIF-2α.When HIF-2α was overexpressed, the mRNA level of CDCP1 was greatly upregulated (5.92±0.28,
3.Prevalence of antifolate drug resistance markers in Plasmodium vivax in China.
Fang HUANG ; Yanwen CUI ; He YAN ; Hui LIU ; Xiangrui GUO ; Guangze WANG ; Shuisen ZHOU ; Zhigui XIA
Frontiers of Medicine 2022;16(1):83-92
The dihydrofolate reductase (dhfr) and dihydropteroate synthetase (dhps) genes of Plasmodium vivax, as antifolate resistance-associated genes were used for drug resistance surveillance. A total of 375 P. vivax isolates collected from different geographical locations in China in 2009-2019 were used to sequence Pvdhfr and Pvdhps. The majority of the isolates harbored a mutant type allele for Pvdhfr (94.5%) and Pvdhps (68.2%). The most predominant point mutations were S117T/N (77.7%) in Pvdhfr and A383G (66.8%) in Pvdhps. Amino acid changes were identified at nine residues in Pvdhfr. A quadruple-mutant haplotype at 57, 58, 61, and 117 was the most frequent (57.4%) among 16 distinct Pvdhfr haplotypes. Mutations in Pvdhps were detected at six codons, and the double-mutant A383G/A553G was the most prevalent (39.3%). Pvdhfr exhibited a higher mutation prevalence and greater diversity than Pvdhps in China. Most isolates from Yunnan carried multiple mutant haplotypes, while the majority of samples from temperate regions and Hainan Island harbored the wild type or single mutant type. This study indicated that the antifolate resistance levels of P. vivax parasites were different across China and molecular markers could be used to rapidly monitor drug resistance. Results provided evidence for updating national drug policy and treatment guidelines.
Antimalarials/pharmacology*
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China/epidemiology*
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Drug Combinations
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Drug Resistance/genetics*
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Folic Acid Antagonists/pharmacology*
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Humans
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Mutation
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Plasmodium vivax/genetics*
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Prevalence