• 제목/요약/키워드: Literature search

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퍼지AHP법을 이용한 해양사고 피해규모에 의한 위험수준 평가 (Evaluation of Risk Level for Damage of Marine Accidents using Fuzzy AHP)

  • 장운재;금종수
    • 해양환경안전학회:학술대회논문집
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    • 해양환경안전학회 2004년도 추계학술발표회
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    • pp.83-88
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    • 2004
  • 본 연구는 우리나라 수색구조 구역에 대한 해양사고 피해규모에 의한 위험수준을 평가하였다. 이러한 위험수준 평가를 위해 본 연구에서는 전문가 지식에 기반한 퍼지로직과 퍼지측도와 t-준노름 퍼지적분법을 이용하였다. 똔 연구의 퍼지로직은 퍼지 확장원리에 의한 최대최소화 합성이고, 비퍼지화는 무게중심법을 이용하였고, 최종 평가는 t-준노름 퍼지적분댑을 이용하였다. 그 결과 목포, 통영, 부산 수색 구조 구역의 위험수준이 가장 높은 것으로 평가되어, 향후 위험수준을 경감 하기 위해 많은 구조선과 구조장비가 필요 할 것으로 판단된다.

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Association of the Glutathione S-transferase T1 Null Genotype with Risk of Gastric Cancer: a Meta-analysis in Asian Populations

  • Zeng, Yan;Bai, Jian;Deng, Li-Cong;Xie, Yu-Ping;Zhao, Fen;Huang, Ying
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권3호
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    • pp.1141-1148
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    • 2016
  • Background: A large number of studies have been published to investigate the association between the null genotype of glutathione S-transferase T1 (GSTT1) with gastric cancer. However, the results were inconsistent and conflicting. The aim of this study was to estimate the relationship between this polymorphism in the GSTT1 gene and gastric cancer risk in Asian populations by meta-analysis. Materials and Methods: A literature search was performed in PubMed, Embase, Chinese Biomedical database (CBM), Weipu database, Wanfang database, and China National Knowledge Infrastructure database (CNKI). Statistical analysis was conducted by using Review Manager 5.3. Results: Thirty-nine studies with a total of 7,737 gastric cancer cases and 10,823 controls were included in this meta-analysis. The meta-analysis of total studies showed that the null genotype in GSTT1 was associated with increased risk of gastric cancer in Asians (OR=1.19, 95% CI=1.08-1.31, p=0.0002). Subgroup analysis showed a significant relationship between GSTT1 null genotype and gastric cancer in East-Asians, as well as in subgroup analysis of hospital-based design. On subgroup analysis by smoking status, alcohol status, Helicobacter pylori infection status, and histology type, no significant association of this polymorphism with susceptibility to gastric cancer was found. Conclusions: In conclusion, the results showed that the null genotype of GSTT1 is significantly associated with an increased risk in gastric cancer in Asian populations.

Use of Complementary and Alternative Medicine in Patients with Gynecologic Cancer: a Systematic Review

  • Akpunar, Dercan;Bebis, Hatice;Yavan, Tulay
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권17호
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    • pp.7847-7852
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    • 2015
  • Purpose: Research carried out with gynecologic cancer patients using CAM was reviewed to provide a source for discussing which CAM method is used for which purpose, patients' perceptions on the effects/side effects occurred during/after using CAM and their sources of information regarding CAM. Materials and Methods: This literature review was carried out for the period between January 2000 and March 2015 using Scopus, Dynamed, Med-Line, Science Dırect, Ulakbim, Research Starters, Ebscohost, Cinahl Complete, Academic Onefile, Directory of Open Access Journals, BMJ Online Journals (2007-2009), Ovid, Oxford Journal, Proquest Hospital Collection, Springer-Kluwer Link, Taylor & Francis, Up To Date, Web Of Science (Citation Index), Wiley Cochrane-Evidence Base, Wiley Online Library, and Pub-Med search databases with "complementary and alternative medicine, gynecologic cancer" as keywords. After searching through these results, a total of 12 full length papers in English were included. Results: CAM use in gynecologic cancer patients was discussed in 8 studies and CAM use in breast and gynecologic cancer patients in 4. It was determined that the frequency of CAM use varies between 40.3% and 94.7%. As the CAM method, herbal medicines, vitamins/minerals were used most frequently in 8 of the studies. When the reasons why gynecologic cancer patients use CAM are examined, it is determined that they generally use to strengthen the immune system, reduce the side effects of cancer treatment and for physical and psychological relaxation. In this review, most of the gynecologic cancer patients perceived use of CAM as beneficial. Conclusions: In order that the patients obtain adequate reliable information about CAM and avoid practices which may harm the efficiency of medical treatment, it is recommended that "Healthcare Professionals" develop a common language.

The NQO1 rs1800566 Polymorphism and Risk of Bladder Cancer: Evidence from 6,169 Subjects

  • Guo, Zhan-Jing;Feng, Chang-Long
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권12호
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    • pp.6343-6348
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    • 2012
  • Objective: The NAD(P)H:quinone oxidoreductase 1 (NQO1) rs1800566 polymorphism, leading to proline-toserine amino-acid and enzyme activity changes, has been implicated in bladder cancer risk, but individually published studies showed inconsistent results. We therefore here conducted a meta-analysis to summarize the possible association. Methods: A systematic literature search up to August 27, 2012 was carried out in PubMed, EMBASE and Wanfang databases, and the references of retrieved articles were screened. Crude odds ratios (ORs) with 95% confidence intervals (CIs) were analyzed for homozygote contrast (TT vs. CC), additive model (T vs. C), dominant model (TT+CT vs. CC), and recessive model (TT vs. CC+CT) to assess the association using fixed- or random-effect models. Results: We identified 12 case-control studies including 3,041 cases and 3,128 controls for the present meta-analysis. Significant association between NQO1 rs1800566 genetic polymorphism and risk of bladder cancer was observed in the additive model (OR = 1.15, 95% CI = 1.01-1.30, p = 0.030). Moreover, in the subgroup analysis stratified by ethnicity, significant associations were observed in Asians (OR = 1.26, 95% CI = 1.08-1.47, p = 0.003 for T vs. C; OR = 1.68, 95% CI = 1.21-2.32, p = 0.002 for TT vs. CC; OR = 1.50, 95% CI = 1.13-1.98, p = 0.005 for TT vs. CT+CC) but not in Caucasians. Conclusions: The results suggest that NQO1 rs1800566 genetic polymorphism may contribute to bladder cancer development, especially in Asians.

MTHFR C677T Polymorphism and Pancreatic Cancer Risk: a Meta-analysis

  • Liu, Xiang-Ming;Liu, Feng-Hua;Tang, Yong;Li, Qiang
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권8호
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    • pp.3763-3766
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    • 2012
  • Background: Methylenetetrahydrofolate reductase (MTHFR) is a key enzyme in the metabolism of folate, and the role of the MTHFR C677T polymorphism in pancreatic carcinogenesis is still controversial. Methods: A literature search was performed using Pubmed and CNKI databases for published studies through May 2012. We performed a meta-analysis of all relevant case-control studies that examined the association between MTHFR C677T polymorphism and pancreatic cancer risk. Results: Finally, 9 individual case-control studies with a total of 1,299 pancreatic cancer cases and 2,473 controls were included into this meta-analysis. Results: This metaanalysis showed there was an obvious association between MTHFR C677T polymorphism and pancreatic cancer risk in East Asians (for allele model, OR = 1.67, 95%CI 1.11-2.51; For homozygote model, OR = 2.77, 95%CI 1.40-5.48; for recessive model, OR = 1.96, 95%CI 1.54-2.50; for dominant model, OR = 2.11, 95%CI 1.01-4.41). However, no significant association was found in Caucasians. Conclusions: The MTHFR C677T polymorphism is associated with pancreatic cancer risk, and a race-specific effect may exist in this association. More studies with a larger sample size are needed to further clarify this association.

Association between a Polymorphism in miR-34b/c and Susceptibility to Cancer - a Meta-analysis

  • Lin, Zhuo;Chen, Li;Song, Mei;Shi, Ke-Qing;Tang, Kai-Fu
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권17호
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    • pp.7251-7255
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    • 2014
  • MicroRNAs (miRNAs) act as tumor suppressors or promoters in neoplasia by regulating relative geneexpression. The association between a single nucleotide polymorphism (SNP) rs4938723 in miR-34b/c and susceptibility to cancers was inconsistent in previous studies. In this study, we conducted a literature search of PubMed, Web of Science and Embase to identify all relevant studies in this meta-analysis with 6,036 cases and 6,204 controls. We found that the miR-34b/c rs4938723 polymorphism was significantly associated with increased risk of cancers in the heterozygous model (TC versus TT, OR=1.09, 95% CI=1.01-1.18, P=0.02). Subgroup analysis also revealed increased risk for Asian ethnicity in the heterozygous model (TC versus TT, OR=1.12, 95% CI=1.02-1.22, P=0.02), but decreased risk of colorectal cancer in homozygote model (CC versus TT, OR=0.66, 95% CI=0.47-0.92, P=0.02) and in the recessive model (CC versus TC+TT, OR=0.67, 95% CI=0.48-0.93, P=0.02) by cancer type. The current meta-analysis indicated that the miR-34b/c rs4938723 polymorphism may decrease susceptibility to colorectal cancer. Well-designed studies with larger sample size are required to further validate the results.

Impact of Caspase-8 (CASP8) -652 6N Del and D302H Polymorphisms on Prostate Cancer in Different Ethnic Groups

  • Zhang, Cheng-Dong;Li, Hong-Tao;Liu, Kun;Lin, Zhi-Di;Peng, Qi-Liu;Qin, Xue;He, Min;Wu, Hua;Mo, Zeng-Nan;Yang, Xiao-Li
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권18호
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    • pp.7713-7718
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    • 2014
  • Background: Despite evidence suggesting roles for caspase-8 (CASP8) -652 6N del and D302H polymorphisms in prostate cancer (PCa), the association of these polymorphisms with PCa risk remains inconclusive. Therefore, a meta-analysis was performed to more precisely estimate the association of CASP8 -652 6N del and D302H polymorphisms with PCa susceptibility. Materials and Methods: A comprehensive literature search was conducted to identify all case-control studies of CASP8 D302H and -652 6N del polymorphisms and PCa risk. Odds ratios (ORs) and 95% confidence intervals (CIs) were used to assess the strength of the association and the precision of the estimate, respectively. Results: Nine -625 6N del studies and 4 D302H studies were included. CASP8 -652 6N del and D302H polymorphisms were not significantly associated with PCa risk in the overall analyses. However, in the subgroup analysis stratified by ethnicity, -625 6N del was significantly associated with PCa risk in the East Asian and Indian populations under the recessive model. Furthermore, the subgroup analysis strongly suggested that D302H was associated with lower PCa risk in the Non-Indian population under the dominant model. Conclusions: In our meta-analysis, ethnic-specific differences were evident in the association of CASP8-625 6N del and D302H polymorphisms with PCa risk.

Adiponectin Receptor 1 (ADIPOR1) rs1342387 Polymorphism and Risk of Cancer: a Meta-analysis

  • Yu, Li-Xiang;Zhou, Nan-Nan;Liu, Li-Yuan;Wang, Fei;Ma, Zhong-Bing;Li, Jie;Yu, Zhi-Gang
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권18호
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    • pp.7515-7520
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    • 2014
  • Many studies have indicated possible associations between a polymorphism of adiponectin receptor 1 (ADIPOR1) rs1342387 and risk of cancer, but contradictory results have been reported. The main aim of this study was to draw a reliable conclusion about the relationship between the rs1342387 polymorphism and cancer incidence, by conducting a literature search of Pubmed, Embase, Wanfang and Cochrane libraries. Eleven studies including 3, 738 cases and 4, 748 controls were identified in this meta-analysis. The ADIPOR1 rs1342387 polymorphism was associated with risk of colorectal cancer for all genetic comparison models (GG vs AA, OR: 1.44, 95%CI: 1.21-1.70; G carriers vs A carriers, OR: 1.23, 95%CI: 1.11-1.36; dominant model, OR: 1.28, 95%CI: 1.10-1.49 and recessive model, OR: 1.31, 95%CI: 1.12-1.55). Stratified by ethnicity, the rs1342387 polymorphism was significantly associated with risk of colorectal cancer in Asian ancestry for all genetic comparison models (GG vs AA, OR: 1.56, 95%CI: 1.26-1.92; G carriers vs. A carriers OR: 1.30, 95%CI: 1.18-1.43; dominant model OR: 1.31, 95%CI: 1.08-1.60 and recessive model OR: 1.44, 95%CI: 1.26-1.64), but not in Caucasian or mixed (Caucasian mainly) groups. In summary, the ADIPOR1 rs1342387 polymorphism is significantly associated with risk of colorectal cancer among individuals of Asian ancestry.

Predictive and Prognostic Roles of Ribonucleotide Reductase M1 in Patients with Pancreatic Cancer Treated with Gemcitabine: A Meta-analysis

  • Zhang, Xiong;Jin, Fen-Shu;Zhang, Li-Guo;Chen, Rui-Xue;Zhao, Jin-Hui;Wang, Yan-Nan;Wang, En-Fu;Jiang, Zhen-Dong
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권7호
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    • pp.4261-4265
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    • 2013
  • Increasing scientific evidence suggests that ribonucleotide reductase M1 (RRM1) may be a powerful predictor of survival in patients with pancreatic cancer treated with adjuvant gemcitabine-based chemotherapy after operative resection, but many existing studies have yielded inconclusive results. This meta-analysis aimed to assess the prognostic role of RRM1 in predicting survival in patients with pancreatic cancer treated with gemcitabine. An extensive literature search for relevant studies was conducted on PubMed, Embase, Web of Science, Cochrane Library, and CBM databases from their inception through May 1st, 2013. This meta-analysis was performed using the STATA 12.0 software and crude hazard ratios (HRs) with 95% confidence intervals (CIs) were calculated. Eight clinical studies were included in this meta-analysis with a total of 665 pancreatic cancer patients treated with adjuvant gemcitabine-based chemotherapy, including 373 patients in the high RRM1 expression group and 292 patients in the low RRM1 expression group. Our meta-analysis revealed that high RRM1 expression was associated with improved overall survival (OS) of pancreatic cancer patients (HR=1.56, 95%CI=0.95-2.17, P<0.001). High RRM1 expression also was linked to longer disease-free survival (DFS) than low RRM1 expression (HR=1.37, 95%CI=0.25-2.48, P=0.016). In conclusion, our meta-analysis suggests that high RRM1 expression may be associated with improved OS and DFS of pancreatic cancer patients treated with adjuvant gemcitabine-based chemotherapy. Detection of RRM1 expression may be a promising biomarker for gemcitabine response and prognosis in pancreatic cancer patients.

전담간호사 제도 개선방안에 대한 통합적 연구 (A integrated study on the current status and improvement direction of physician assistant)

  • 문혜경
    • 문화기술의 융합
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    • 제6권3호
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    • pp.159-165
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    • 2020
  • 본 연구는 PA(전담간호사)의 업무 실태를 파악하여 PA제도에 대한 정책 수립의 방향 및 근거 자료를 제공하기 위해 시도되었다. 체계적 문헌 고찰적 방법론을 통해 'PA(전담간호사, 의사보조인력)' 검색어로 KISS, 국회도서관, NDSL, RISS 등의 데이터베이스를 이용하여 국내에 출판된 논문을 검색하였고 국내 주요 일간지 11개와 의료계 전문지인 청년의사신문 등 총 12개 신문에 보도된 전담간호사 관련 주요 사건 관련 기사 15편 등 총 23편을 분석하는 연구 방법론적 융복합적 연구를 시행하였다. 8편의 논문 분석 결과, PA의 업무와 관련된 소진, 직무스트레스 및 불명확한 업무범위 및 규정 부재는 직무 만족도를 감소시킨 것으로 나타났다. 15편의 보도기사를 통해 관련 기관들의 긍정적, 부정적 의견 대립 속에 전문의료인으로서의 자격과 업무에 대한 법제화 및 교육제도 확립이 시급함을 파악하였다. 향후 PA의 활용도를 높이기 위해서는 한국 실정에 적합한 제도적 장치를 확보하고 교육프로그램을 마련하는 것이 필요하다.