• 제목/요약/키워드: Environmental disease

검색결과 2,147건 처리시간 0.027초

Exploring the Mechanisms behind Disease using Mass Spectrometry

  • Byun, Jaeman
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2002년도 Current Trends in Toxicological Sciences
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    • pp.43-43
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    • 2002
  • Mass spectrometric study of oxidant damage: Generation of endogenous oxidizing species have been implicated in the pathogenesis of a wide variety of diseases from cancer to Alzheimer's Disease to Inflammatory bowel diseases. Antioxidant compounds may therefore be useful in treating or preventing these diseases.(omitted)

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NON-INVASIVE OXIDATIVE AND INFLAMMATORY BIOMARKERS IN BREATH CONDENSATE IN HEALTH AND DISEASE

  • Rahman, Irfan
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2003년도 춘계학술대회 논문집
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    • pp.23-24
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    • 2003
  • Oxidative stress is the hallmark of various inflammatory lung diseases/disorders such as asthma, adult respiratory distress syndrome, idiopathic pulmonary fibrosis, pneumonia, lung transplantation, Chronic Obstructive Pulmonary Disease (COPD), cystic fibrosis, bronchiectasis, lung cancer and various occupational diseases. (omitted)

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Microbe Hunting: A Curious Case of Cryptococcus

  • Bartlett Karen H.;Kidd Sarah;Duncan Colleen;Chow Yat;Bach Paxton;Mak Sunny;MacDougall Laura;Fyfe Murray
    • 한국환경보건학회지
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    • 제31권3호
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    • pp.199-206
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    • 2005
  • C. neoformans-associated cryptococcosis is primarily a disease of immunocompromised persons, has a world-wide distribution, and is often spread by pigeons in the urban environment. In contrast, C. gattii causes infection in normal hosts, has only been described in tropical and semi-tropical areas of the world, and has a unique niche in river gum Eucalyptus trees. Cryptococcosis is acquired through inhalation of the yeast propagules from the environment. C. gattii has been identified as the cause of an emerging infectious disease centered on Vancouver Island, British Columbia, Canada. No cases of C. gattii-disease were diagnosed prior to 1999; the current incidence rate is 36 cases per million population. A search was initiated in 2001 to find the ecological niche of this basidiomycetous yeast. C. gattii was found in the environment in treed areas of Vancouver Island. The highest percentage of colonized-tree clusters were found around central Vancouver Island, with decreasing rates of colonization to the north and south. Climate, soil and vegetation cover of this area, called the Coastal Douglas fir biogeoclimatic zone, is unique to British Columbia and Canada. The concentration of airborne C. gattii was highest in the dry summer months, and lowest during late fall, winter, and early spring, months which have heavy rainfall. The study of the emerging colonization of this organism and subsequent cases of environmentally acquired disease will be informative in planning public health management of new routes of exposure to exotic agents in areas impacted by changing climate and land use patterns.

COVID-19 as a Recognized Work-Related Disease: The Current Situation Worldwide

  • Sandal, Abdulsamet;Yildiz, Ali N.
    • Safety and Health at Work
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    • 제12권1호
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    • pp.136-138
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    • 2021
  • Coronavirus disease 2019 (COVID-19), which is a newly emerging infectious disease worldwide, can be categorized as an occupational disease, because employees, particularly in the healthcare system, can be infected at the workplace. As of December 15, 2020, we summarized the occupational safety and health practices in selected countries on the recognition of COVID-19 as one of the occupational risks. The situation has differed among countries, including the recognition status and whether a specific regulation existed. International organizations, namely the International Labour Organization, World Health Organization, and European Union, should plan and conduct studies on the work-relatedness of COVID-19, propose criteria for recognition, and add the infection to the occupational disease list to provide a basis for specific country regulations. Stakeholders should also act to adjust country-level legislation.

Identification and Pathogenicity of Neophysopella vitis Causing Rust Disease on Meliosma myriantha in Korea

  • Dong Hwan Na;Jae Sung Lee;Young-Joon Choi;Ji-Hyun Park;Hyeon-Dong Shin
    • 식물병연구
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    • 제29권3호
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    • pp.299-303
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    • 2023
  • Rust symptoms on Meliosma myriantha trees have been noticed during disease surveys in Korea since 2010, with a high disease incidence frequently surpassing 90%. The causal fungus of the rust disease was identified as Neophysopella vitis based on the morphological investigation and molecular sequence analysis of the internal transcribed spacer (ITS) and large subunit (LSU) rDNA regions. This is the first report of rust disease caused by N. vitis on M. myriantha in Korea. A pathogenicity assay proved that M. myriantha serves as the aecial host of N. vitis as spermogonia and aeciospores were produced, which can infect the two uredinial hosts, Boston ivy (Parthenocissus tricuspidata) and Virginia creeper (Parthenocissus quinquefolia).

Nutritional concerns in pediatric inflammatory bowel disease

  • Kim, Yong Joo
    • Clinical and Experimental Pediatrics
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    • 제59권6호
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    • pp.247-251
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    • 2016
  • The pathophysiology and fundamental etiologic mechanism of inflammatory bowel disease (IBD) is not well understood even though therapeutic regimens and drugs are rapidly evolutionary. IBD has complicated connections with genetic, immunologic, gut microbial, environmental, and nutritional factors. It is not clearly well known to the physicians how to feed, what nutrients are more helpful, and what food to be avoided. This review discusses the issues of growth and important nutritional concerns in the management of IBD in childhood.

Mitophagy: Therapeutic Potentials for Liver Disease and Beyond

  • Lee, Sooyeon;Kim, Jae-Sung
    • Toxicological Research
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    • 제30권4호
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    • pp.243-250
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    • 2014
  • Mitochondrial integrity is critical for maintaining proper cellular functions. A key aspect of regulating mitochondrial homeostasis is removing damaged mitochondria through autophagy, a process called mitophagy. Autophagy dysfunction in various disease states can inactivate mitophagy and cause cell death, and defects in mitophagy are becoming increasingly recognized in a wide range of diseases from liver injuries to neurodegenerative diseases. Here we highlight our current knowledge on the mechanisms of mitophagy, and discuss how alterations in mitophagy contribute to disease pathogenesis. We also discuss mitochondrial dynamics and potential interactions between mitochondrial fusion, fission and mitophagy.

Occurrence in Korea of Rust Disease on Tilia mandshurica Caused by Pucciniastrum tiliae

  • Jae Sung Lee;Ji Hyun Park;Young Joon Choi;Hyeon Dong Shin
    • 한국균학회지
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    • 제51권1호
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    • pp.1-6
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    • 2023
  • Tilia mandshurica trees with rust symptoms have consistently been noticed during disease surveys in Korea since 2006. Based on the morphological examination and molecular sequence analysis of the internal transcribed spacer and large subunit of ribosomal DNA, Pucciniastrum tiliae was identified as the causal fungus of rust disease. This is the first report of P. tiliae infection on T. mandshurica in Korea.

젖소 신생송아지의 질병발생에 관한 조사연구 (Epidemiological Investigation of Diseases in Dairy Suckling Calves)

  • 권오덕;김남수;채준석;박명규;김민석;유제춘;이주묵
    • 한국임상수의학회지
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    • 제17권1호
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    • pp.102-108
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    • 2000
  • This study was carried out to investigate the epidemiological prevalence of diseases from birth to weaning in 66 dairy calves which were delivered from three stock farm in Chonbuk area. We examined body weight gain, incidence rate of diseases and population mortality rate in relation to age, season, environmental temperature and rearing management conditions for one year. The results of this experiment were as follows: Birth weight of dairy calves born of primiparae was lower than those of multiparae. But no significant difference in body weight gain was observable between dairy calves born of primiparae and those of multiparae. Body weight gain of diseased calves was lower than normal calves. Of 66 delivered calves, 34 calves(51.5%) were affected with gastronitestinal and/or respiratory diseases. The prevalence of the diseases were gastrointestinal disease(28.7%), respiratory disease(18.2%), and gastronitestinal and respiratory disease(4.6%). The gastronitestinal disease was occurred contrinually regardless of the season. Whereas all of the respiratory disease were occurred in winter and a change of season(December to April). 68.4% of the gastronitestinal disease, and all of the respiratory disease were occurred at atmospheric temperatures below 1$0^{\circ}C$. 89.5% of the gastronitestinal disease were occurred within 3 weeks old, whereas 50% of the respiratory disease were occurred intensively between 3 weeks and 4 weeks old. Of 66 delivered dairy claves, 2 calves were died(3%) with respriratory disease.

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저온 대기압 플라즈마를 이용한 해수 및 어류 병원성 세균 3종에 대한 살균소독효과 (Low frequency plasma disinfectant effect in seawater and three major fish bacterial disease pathogens)

  • 김수진;박신후;지보영;김영재;권문경
    • 한국어병학회지
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    • 제33권1호
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    • pp.91-95
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    • 2020
  • Fish bacterial diseases have spread and caused serious problem for cultured marine fish in Korea. The important bacterial disease affecting mariculture such as olive flounder (Paralichthys olivaceus) are caused by Edwardsiella tarda, Vibrio scophthalmi and Streptococcus parauberis. For the bacterial disease protection in aquaculture industry, the water treatment is needed in aquaculture system. During the last decades atmospheric pressure non-thermal plasma in contact with liquids have received a lot of attention of environmental and medical application. In this study, we determined the disinfectant effect in seawater and three major fish bacterial disease pathogens by using low frequency plasma treatment. Three fish bacteria (E. tarda, V. schophthalmi, S. parauberis) were not detected within 16 min, 150 min and 270 min of 20 L, 500 L and 1 ton seawater post low frequency plasma treatment, respectively. Three major fish bacterial disease pathogens were not detected within 2 min after the low frequency plasma treatment, suggesting that the low frequency plasma possess disinfectant effectiveness.