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Environmental Health and Toxicology

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https://www.readbyqxmd.com/read/28331171/accelerated-ecotoxicity-of-photoreactive-nanoparticles-on-moina-macrocopa
#1
Sun-Hwa Nam, Yu-Jin Shin, Youn-Joo An
Zinc oxide nanoparticles (ZnO NPs) and titanium dioxide nanoparticles (TiO2 NPs) are well known as photoreactive NPs. Various phototoxicity of ZnO NPs and TiO2 NPs on several organisms were reported. There was still necessity to evaluate toxicity of photoreactive ZnO NPs and TiO2 NPs due to species-specific effects under various irradiation conditions. We compared acute toxicity of Moina macrocopa under visible, UVA, and UVB irradiations, according to Organization for Economic Cooperation and Development guidelines for the testing of chemicals (Test No...
March 22, 2017: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/28231688/study-on-removal-difference-in-indoor-particulate-matter-and-volatile-organic-compounds-through-application-of-the-plants
#2
Seung-Han Hong, Jiyeon Hong, Jihyeon Yu, Young-Wook Lim
This study was conducted to evaluate the ability of plants to purify indoor air by observing the effective reduction rate among pollutant types of particulate matter and volatile organic compounds. Particulate matter and four types of volatile organic compounds were measured in a new building that is less than 3 years old and under three different conditions: before applying the plant, after applying the plant, and a room without a plant. The removal rate of each pollutant type due to the plant was also compared and analyzed...
February 22, 2017: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/28231689/are-children-with-asthma-in-south-korea-also-associated-with-vitamin-d-deficiency
#3
Yu-Ri Kim, Sung-Chul Seo, Young Yoo, Ji Tae Choung
Recently, epidemiologic studies have shown that the lack of vitamin D levels may be associated with high asthma prevalence, but its effect is still controversial, depending on season, area, and food consumption. We aimed to examine the association of serum vitamin D levels with the prevalence of pediatric asthma in Korea. A total of 80 children (50 asthmatic children and 30 healthy controls) aged 6-14 years were participated in this study. Serum 25-hydroxy vitamin D (vitamin D) levels were measured and compared between the two groups...
February 14, 2017: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/28183164/estrogenic-activity-of-zinc-pyrithione-an-in-vivo-and-in-vitro-study
#4
Seung Jun Kwack, Kyung Sik Yoon, Nam Hee Youn, Hyun Gyung Gu
Objectives: Zinc pyrithione is commonly used to prevent dandruff and seborrheic dermatitis. Many consumers are exposed daily to high doses of zinc pyrithione, causing serious concerns about its toxicity. The reproductive and developmental toxicities were previously reported in pregnant rats. However, the estrogenic activity of zinc pyrithione at varying degrees of exposure has been rarely studied. Thus, we performed an uterotrophic assay, E-screen assay, and gene expression profiling to assess the estrogenic activity of zinc pyrithione...
February 9, 2017: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/28111422/humidifier-disinfectant-disaster-what-do-we-know-and-what-are-left-to-be-clarified
#5
Sungkyoon Kim, Domyung Paek
After the initial investigations of Korean CDC in 2011, more than 1,000 suspicious cases of humidifier disinfectant victims were subsequently reported up to 2015, and numbers are still increasing dramatically in 2016 in the midst of prosecutor's office investigation. In this study, we tried to summarize the current understandings of humidifier disinfectant related health effects based upon systemic review of published epidemiologic studies and toxicology investigations. Published studies of humidifier disinfectants were searched through 'pubmed' and 'toxline'?under the heading of 'humidifier disinfectant', and related reports were identified from the references and published report list of regulatory agencies including Korean National Institute of Environmental Research, US Environmental Protection Agency, and EU European Chemicals Agency...
December 4, 2016: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/28118702/act-on-the-registration-and-evaluation-of-chemicals-k-reach-and-replacement-reduction-or-refinement-best-practices
#6
REVIEW
Soojin Ha, Troy Seidle, Kyung-Min Lim
OBJECTIVES: Korea's Act on the Registration and Evaluation of Chemicals (K-REACH) was enacted for the protection of human health and the environment in 2015. Considering that about 2000 new substances are introduced annually across the globe, the extent of animal testing requirement could be overwhelming unless regulators and companies work proactively to institute and enforce global best practices to replace, reduce or refine animal use. In this review, the way to reduce the animal use for K-REACH is discussed...
2016: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/28118701/a-study-on-the-factors-affecting-the-follow-up-participation-in-birth-cohorts
#7
Bohyun Park, Eun Jeung Choi, Eunhee Ha, Jong Hyuk Choi, Yangho Kim, Yun-Chul Hong, Mina Ha, Hyesook Park
OBJECTIVES: A stable follow-up participation rate is a very important factor for validity in a cohort study. This study analyzed the factors that affect the participation rate at one hospital-based birth cohort in South Korean. METHODS: The participants were recruited from the Mothers' and Children's Environmental Health study between 2006 and 2010. The analysis targeted 1751 mothers who participated in a birth cohort. We conducted analyses of general characteristics during pregnancy and those of infants at birth that affect the participation rate of the 6-month follow-up survey...
2016: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/28111421/combined-approaches-using-adverse-outcome-pathways-and-big-data-to-find-potential-diseases-associated-with-humidifier-disinfectant
#8
Jong-Han Leem, Kyu Hyuck Chung
According to previous survey, about two million of people were expected to suffer from toxic effects due to humidifier disinfectant (HD), regardless of healing or not. Extremely small group are recognized as HDs' victims. Up to now, previous research tried to focus on interstitial fibrosis on terminal bronchiole because it is specific finding, compared with other diseases. To figure out overall effects from HDs, we recommend adverse outcome pathways (AOPs) as new approach. Reactive oxygen species (ROS) generation, decreased T-cell and pro-inflammatory cytokine release from macrophage could be key events between the exposure to HDs and diseases...
2016: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/28111420/a-follow-up-study-of-the-association-between-mobile-phone-use-and-symptoms-of-ill-health
#9
Yong Min Cho, Hee Jin Lim, Hoon Jang, Kyunghee Kim, Jae Wook Choi, Chol Shin, Seung Ku Lee, Jong Hwa Kwon, Nam Kim
The duration and frequency of mobile phone calls, and their relationship with various health effects, have been investigated in our previous cross-sectional study. This 2-year period follow-up study aimed to assess the changes in these variables of same subjects. The study population comprised 532 non-patient adult subjects sampled from the Korean Genome Epidemiology Study. The subjects underwent a medical examination at a hospital in 2012/2013 and revisited the same hospital in 2014/2015 to have the same examination for the characteristics of mobile phone use performed...
2016: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/28111419/chemical-colitis-caused-by-hydrogen-peroxide-enema-in-a-child-case-report-and-literature-review
#10
Joon Sang Lee, Jung Kyung Yoo
A 2-year-old girl, previously healthy, was brought to the emergency department because of significant cramping abdominal pain with recurrent hematochezia after an accidental hydrogen peroxide enema (35%, 5 mL) by her caregiver. She was hospitalized to the pediatric department and treated with nothing per mouth, intravenous fluid and parenteral antibiotic therapy. Laboratory, radiologic and endoscopic evaluation was performed during the admission period. She was discharged in a fully recovered state on the tenth hospital day, and this is the first case report of acute chemical colitis by accidental hydrogen peroxide enema in children...
2016: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/27923269/what-must-be-done-to-prevent-another-humidifier-disinfectant-disaster
#11
Jong-Hyeon Lee
The humidifier disinfectant disaster (HDD) was not a simple poisoning accident by biocides, but a singular disaster in history created by chemicals in household products. This disaster was a result of the failure of a system for the management of chemical and product safety. Since the management authority for chemical usage safety is different from those for chemical safety in products, many blind areas for chemical safety management in products still remain. The 'Act on the Registration and Evaluation, etc...
2016: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/27788568/a-cross-sectional-study-of-the-association-between-mobile-phone-use-and-symptoms-of-ill-health
#12
Yong Min Cho, Hee Jin Lim, Hoon Jang, Kyunghee Kim, Jae Wook Choi, Chol Shin, Seung Ku Lee, Jong Hwa Kwon, Nam Kim
OBJECTIVES: This study analyzed the associations between mobile phone call frequency and duration with non-specific symptoms. METHODS: This study was conducted with a population group including 532 non-patient adults established by the Korean Genome and Epidemiology Study. The pattern of phone call using a mobile phone was investigated through face-to-face interview. Structured methods applied to quantitatively assess health effects are Headache Impact Test-6 (HIT-6), Psychosocial Well-being Index-Short Form, Beck Depression Inventory, Korean-Instrumental Activities of Daily Living, Perceived Stress Scale (PSS), Pittsburgh Sleep Quality Index, and 12-item Short Form Health Survey where a higher score represents a higher greater health effect...
2016: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/27756122/a-call-for-action-from-workers-local-residents-and-consumers-a-safe-society-from-toxic-chemicals
#13
Shinbum Kim, Sanghyuk Im, Youngeun Choi, Soomi Park, Jaesoon Hyun, Kyung Seok Lee, Sunimm Lee, Sung-Nan Lee, Jeongri Seo, Ju Hee Kim, Hyunsun Na, Minsun Kim
No abstract text is available yet for this article.
2016: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/27669754/evaluation-of-metal-contamination-and-phytoremediation-potential-of-aquatic-macrophytes-of-east-kolkata-wetlands-india
#14
Amina Khatun, Sandipan Pal, Aloke Kumar Mukherjee, Palas Samanta, Subinoy Mondal, Debraj Kole, Priyanka Chandra, Apurba Ratan Ghosh
OBJECTIVES: The present study analyzes metal contamination in sediment of the East Kolkata Wetlands, a Ramsar site, which is receiving a huge amount of domestic and industrial wastewater from surrounding areas. The subsequent uptake and accumulation of metals in different macrophytes are also examined in regard to their phytoremediation potential. METHODS: Metals like cadmium (Cd), copper (Cu), manganese (Mn), and lead (Pb) were estimated in sediment, water and different parts of the macrophytes Colocasia esculenta and Scirpus articulatus...
2016: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/27608718/relationship-between-residential-district-and-health-related-quality-of-life-in-chungnam-industrial-complex-area
#15
Heechan Kim, Sangchul Roh
OBJECTIVES: This study aimed to evaluate the relationship between residential district of people, such as power plant, steel-mill and petrochemical industries, and health-related quality of life (HRQoL). METHODS: Using a cross-sectional study design, we randomly recruited participants for our study from industrial areas (thermoelectric power plant, steel-mill, petrochemical industry) and rural areas. Logistic regression analysis was used to identify the relationships between Euro quality of life-5 dimension (EQ-5D) scores and living region, while controlling for sociodemographic characteristics...
2016: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/27608717/risk-factors-associated-with-depression-and-suicidal-ideation-in-a-rural-population
#16
Yosub Joo, Sangchul Roh
OBJECTIVES: This study aimed to evaluate the risk factors associated with depression and suicidal ideation in a rural population. METHODS: A survey was conducted with 543 farmers from Chungcheongnam-do Province using the Center for Epidemiologic Studies Depression Scale (CES-D) for depression, Lubben Social Network Scale (LSNS) for social support, Swedish Q16 for neurotoxicity symptoms and a survey tool for farmer's syndrome. RESULTS: After adjusting for socioeconomic factors using logistic regression analysis, poor self-rated health, low social support and neurotoxicity were positively associated with the risk of depression (odds ratio [OR], 15...
2016: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/27608716/humidifier-disinfectant-lung-injury-how-do-we-approach-the-issues
#17
Jihyun Emma Choi, Sang-Bum Hong, Kyung-Hyun Do, Hwa Jung Kim, Seockhoon Chung, Eun Lee, Jihyun Choi, Soo-Jong Hong
A large portion of the Korean population has been exposed to toxic humidifier disinfectants (HDs), and considering that the majority of the victims are infants, the magnitude of the damage is expected to be considerably larger than what has currently been revealed. The current victims are voicing problems caused by various diseases, including but not limited to lung, upper respiratory tract, cardiovascular, kidney, musculoskeletal, eye, and skin diseases, etc. However, there has been difficulty in gaining validation for these health problems and identifying causal relationships due to lack of evidence proving that toxic HD is the specific causes of extrapulmonary diseases such as allergic rhinitis...
2016: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/27503469/decreased-absorption-of-midazolam-in-the-stomach-due-to-low-ph-induced-by-co-administration-of-banha-sasim-tang
#18
Jun Hyeon Jo, Sun Joo Kim, Woong Shik Nam, Eun Ji Seung, Sangkyu Lee
OBJECTIVES: Banha-sasim-tang (BST), which consists of seven different herbs, is one of the most popular herbal formulae for treating gastrointestinal disorders in Eastern Asia. The commonly used herbal medicine is often co-administered with other therapeutic drugs, which raises the possibility of herb-drug interactions and may modify the clinical safety profile of therapeutic drugs. METHODS: We investigated the potential herb-drug interactions between BST extract and midazolam (MDZ) in mice...
2016: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/27488921/the-humidifier-disinfectant-case-and-the-legislative-challenges-of-the-20th-congress
#19
Taehyun Park
A number of absurdities surrounding the humidifier disinfectant (HD) incident may have occurred because 1) a judicial system operates on the underlying false assumption that the involved parties are equals in knowledge, information and resource mobilization capabilities, regardless of respective real status as company or individual; 2) there is a lack of a system that mandates a company to prevent and actively manage possible catastrophes; 3) the regulatory scheme makes companies believe that as long as they are complying with the existing regulations, they have satisfied all of their responsibilities...
2016: Environmental Health and Toxicology
https://www.readbyqxmd.com/read/27431912/major-concerns-regarding-lung-injury-and-related-health-conditions-caused-by-the-use-of-humidifier-disinfectant
#20
Donguk Park
A total of 221 patients were evaluated to be humidifier disinfectant associated with lung injury (HDLI) through two rounds of programs through April 2015. The humidifier disinfectant (HD) brands most often associated with HDLI were found to be Oxy (n=151, 68 %) and Cefu (n=26, 17 %). Polyhexamethylene guanidine used for disinfectant for four types of HD brands including Oxy was found to be associated with the highest number of HDLI cases (n=188). Further programs are operating to identify various health effects including lung injury which may be associated with the use of HD...
2016: Environmental Health and Toxicology
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