• Title/Summary/Keyword: DISEASE EPIDEMIOLOGY

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Inferring Single Nucleotide Polymorphisms in MicroRNA Binding Sites of Lung Cancer-related Inflammatory Genes

  • He, Fei;Zheng, Ling-Ling;Luo, Wen-Ting;Yang, Rong;Xu, Xiao-Qin;Cai, Lin
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.8
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    • pp.3601-3606
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    • 2014
  • Single nucleotide polymorphisms located at microRNA (miRNA)-binding sites are likely to affect the expression of miRNA targets and may contribute to the susceptibility of humans to common diseases. Here 335 candidate lung cancer-related inflammatory genes were selected according to the existing literature and database. We identified putative miRNA-binding sites of 149 genes by specialised algorithms and screened SNPs in the 3'UTRs of these genes. By calculating binding free energy, we sorted 269 SNPs on the basis of the possibility of prediction. The proposed approach could help to easy the identification of functionally relevant SNPs and minimize the workflow and the costs.

Common Genetic Variations in the MUC5AC Gene are Not Related to Helicobacter pylori Serologic Status

  • Zhou, Cheng-Jiang;Zhang, Liu-Wei;Gao, Fang;Zhang, Bin;Wang, Ying;Chen, Da-Fang;Jia, Yan-Bin
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.24
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    • pp.10719-10722
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    • 2015
  • Several lines of evidence suggest that MUC5AC genetic polymorphisms might confer susceptibility to H. pylori infection and therefore gastric cancer risk. We here assessed the association of common polymorphisms in the MUC5AC gene with H. pylori seroprevalence using an LD-based tagSNP approach in a north-western Chinese Han population. A total of 12 tagSNPs were successfully genotyped among 281 unrelated ethnic Han Chinese who had no cancer history, and no identifiable gastric disease or genetic disease. No significant association between any alleles, genotypes or haplotypes and H. pylori seroprevalence was observed. Our results suggest that common genetic variations in MUC5AC gene might not make a major contribution to the risk of H. pylori infection.

Evaluation of Field Epidemiology Specialist Program for School Nurse (학교보건교사 전염병관리교육 효과평가)

  • Park, No-Yai;Kwon, Jun-Wook;Kim, Myung-Soon;Jeong, Ihn-Sook
    • Korean Journal of Health Education and Promotion
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    • v.24 no.1
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    • pp.63-74
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    • 2007
  • Objectives: This study aimed to evaluate the educational effect of the Field Epidemiology Specialist Training Program for School Nurse which composed of 18hours curriculum. Method: The subjects were 797 who participated in the 2005 training program. Data was collected with structured questionnaires(knowledge on the control of communicable disease 15 items, attitude 15 items, and confidence in practice 14 items, demographic characteristics 4 items) before (January) and after (July to October) programs in 2005. Results: Knowledge on the control of communicable disease was improved from 9.7 points (possible range : 0-15) before program to 11.9 points after program. Attitude was improved from 53.6 points (possible range : 15-60) before program to 55.7 points after program. Confidence in practice was changed from 45.9 points (possible range : 14-56) before program to 50.0 points after program. Even though all three areas were improved after educational program, knowledge showed the largest change among them. Conclusion: We can conclude the educational program was effective because knowledge, attitude, and confidence in practice on the control of communicable were statistically significantly improved after educational program. Further educational program is recommended to be operated to get more improvement in attitude and confidence in practice. And short-term continuing educational program is needed to maintain and refresh the information on the control of communicable diseases in schools.

Importance of CADASIL research in Jeju: a review and update on epidemiology, diagnosis, and clinical spectrum (제주도에서 CADASIL 연구의 중요성: 역학, 진단 및 임상양상에 대한 고찰)

  • Choi, Jay Chol;Lee, Jung Seok;Kim, Kitae
    • Journal of Medicine and Life Science
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    • v.17 no.3
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    • pp.65-73
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    • 2020
  • Cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) is a single-gene disease of the cerebral small blood vessels caused by mutations in the NOTCH3 gene on chromosome 19. Although CADASIL was known as a rare disease, recent research has suggested that the NOTCH variants could be found frequently even in the general population. The main clinical features included recurrent stroke, migraine, psychiatric symptoms, and progressive cognitive decline. On brain magnetic resonance imaging, patients with CADASIL showed multifocal white matter hyperintensity lesions, lacunar infarcts, microbleeds, and brain atrophy. Among them, lacunar infarcts and brain atrophy are important in predicting the clinical outcomes of patients with CADASIL. In the Jeju National University Hospital, we have diagnosed 213 CADASIL patients from 2004 to 2020. Most NOTCH3 mutations were located in exon 11 (94.4%), and p.Arg544Cys was the most common mutation. The mean age at diagnosis was 61.0±12.8 years. The most common presenting symptoms were ischemic stroke (24.4%), followed by cognitive impairment(15.0%), headache (8.9%), and dizziness(8.0%). Although the exact prevalence of CADASIL in Jeju is still unknown, the disease prevalence could be as high as 1% of the population considering the prevalence reported in Taiwan. Therefore, it is necessary to discover efficient biomarkers and genetic tests that can accurately screen and diagnose patients suspected of having CADASIL in this region. Ultimately, it is urgent to explore the exact pathogenesis of the disease to identify leading substances of treatment potential, and for this, multi-disciplinary research through active support from the Jeju provincial government as well as the national government is essential.

Epidemiology and challenges on the Middle East respiratory syndrome coronavirus (MERS-CoV) outbreak in Korea, 2015 (2015년 한국의 중동호흡기증후군 유행 역학과 정책 과제)

  • Lee, Moo-Sik
    • Korean Journal of Health Education and Promotion
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    • v.32 no.3
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    • pp.1-9
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    • 2015
  • Objectives: The purpose of this article was to assess epidemiological characteristics and recommendations for strengthening national response and preparedness after MERS-CoV outbreak in Korea, 2015. Methods: The author reviewed epidemiological reports and policy recommendations on MERS-CoV outbreak in Korea, 2015. Results: There was no evidence that genetical difference between the MERS viruses in the Republic of Korea and recent viruses in the Middle East. From the index case to last laboratory-confirmed case, there were 186 laboratory-confirmed cases that included 36 deaths(19.4%), all of whom appear epidemiologically linked to the index cases or subsequent secondary, tertiary, and quaternary cases. This outbreak spread to hospitals through nosocomial transmission. At least, three large clusters were investigated. However, there was at least one case of community transmission of MERS-CoV. Several factors had contributed to the MERS outbreak in Korea, 2015 that including epidemiological characteristics, and infrastructure of national healthcare system for preventing and controlling emerging infectious diseases. Conclusions: It is very important that to share experiences and identify underlying causes of this outbreak for prevention and control of emerging infectious disease in the future; including epidemiology, clinical features, and public health response and preparedness.

The Epidemiology of Delirium (섬망의 역학)

  • Kim, Jeong-Lan
    • Korean Journal of Psychosomatic Medicine
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    • v.16 no.2
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    • pp.81-86
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    • 2008
  • Delirium is not developed naturally and is not an endogenous disease. However, delirium has occurred in some specific populations, such as the elderly or medically compromised patients. These become limitations on the systematic study of the epidemiology of delirium. Many epidemiologic studies of delirium have been focused on the elderly due to the fact there are relatively few in the general population. In addition, assessment tools with various sensitivity and specificity have been used. Advanced age, male, poorer cognitive and functional status, and alcohol abuse are well known risk factors of delirium. the epidemiological data will be reviewed in the elderly, patients with dementia, hip fractures, patients hospitalized in intensive care units, terminal cancer and patients with stroke.

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Genomic epidemiology and surveillance of zoonotic viruses using targeted next-generation sequencing (표적화 차세대염기서열분석법을 이용한 인수공통 바이러스의 유전체 역학과 예찰)

  • Seonghyeon Lee;Seung-Hwan Baek;Shivani Rajoriya;Sara Puspareni;Won-Keun Kim
    • Korean Journal of Veterinary Service
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    • v.46 no.1
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    • pp.93-106
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    • 2023
  • Emerging and re-emerging zoonotic viruses become critical public health, economic, societal, and cultural burdens. The Coronavirus disease-19 (COVID-19) pandemic reveals needs for effective preparedness and responsiveness against the emergence of variants and the next virus outbreak. The targeted next-generation sequencing (NGS) significantly contributes to the acquisition of viral genome sequences directly from clinical specimens. Using this advanced NGS technology, the genomic epidemiology and surveillance play a critical role in identifying of infectious source and origin, tracking of transmission chains and virus evolution, and characterizing the virulence and developing of vaccines during the outbreak. In this review, we highlight the platforms and preparation of targeted NGS for the viral genomics. We also demonstrate the application of this strategy to take advantage of the responsiveness and prevention of emerging zoonotic viruses. This article provides broad and deep insights into the preparedness and responsiveness for the next zoonotic virus outbreak.

Etiology and Epidemiology of Clubroot Disease of Chinese Cabbage and Its Management in Korea

  • Kim, Choong-Hoe
    • Proceedings of the Korean Society of Plant Pathology Conference
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    • 2003.10a
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    • pp.9-12
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    • 2003
  • Clubroot disease of curcifer crops caused by Plasmodiophora brassicae had been first reported in 1920 in Korea, and maintained mild occurrence until 1980s. Since 1990s the disease has become severe in alpine areas of Kyonggi and Kangwon, gradually spread to plain fields throughout the country, and remains as the greatest limiting factor for its production. Researches on the disease has begun in late 1990s in our laboratory after experiencing severe epidemics. Survey of occurrence and etiological and ecological studies have been carried out, particularly, on the pathogen physiology, race identification, quantification of soil pathogen population, host spectrum of the pathogen, and control measures.(중략)

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n-3 지방산과 건강

  • Lee, Su-Hwan
    • Proceedings of the Korean Society of Food Hygiene and Safety Conference
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    • 1992.07a
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    • pp.1-5
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    • 1992
  • There is increasing awareness of the devastating socio-economic cost of cardiovascular disease. As a result there have been a lot of extensive researches both on basic mechanisms involved and on the areas of epidemiology and clinical trials. Now, it is being generally accepted that dietary n-3 fatty acids abundant in marine products, may reduce the incidence of cardiovascular disease. Fish oil, with its complement of n-3 fatty acids, has been shown to have diverse and sometimes potent actions on cells of the blood and vasculature, which may explain some of its positive effects on vascular disease. However, the appropriate intake of n-3 fatty acids has not been established. This may vary with desired effects, the duration of ingestion, the type of seafood or fish oil and amount of other fatty acids, especially nf fatty acid being consumed in the diet, Although the beneficial effects have been extensively studied, little is known about potential adverse effects with excessive intake of n-3 fatty acids. Thus, it is needed to study on the possible unfavorable effects including genetic effects.

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n-3 Fatty Acids (EPA, DHA) and Health (n-3 지방산과 건강)

  • 이수환
    • Journal of Food Hygiene and Safety
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    • v.7 no.2
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    • pp.101-105
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    • 1992
  • There is increasing awareness of the devastating socio-economic cost of cardiovascular disease. As a result there have been a lot of extensive researches both on basic mechanisms involved and on the areas of epidemiology and clinical trials. Now it is being generally accepted that dietary n-3 fatty acids abundant in marine products, may reduce the incidence of cadiovascular disease. Fish oil . with its complement of n-3 fatty acids, has been shown the have diverse and sometimes potent actions on cells of the blood and vasculature, which may explain some of its positive effects on vascular disease. However, the appropriate intake of n-3 fatty acids has not been established. This may vary with desired effects, the duration of ingestion, the type of seafood or fish oil and amount of other fatty acids, especially n-6 fatty acid being consumed in the diet. Although the beneficial effects have been extensively studied, little is known about potential adverse effects with excessive intake of n-3 fatty acids. Thus, it is needed to study on the possible unfavorable effects including genetic effects.

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