권호 표지

Environmental Analysis Health and Toxicology

The Korean Society of Environmental Health and Toxicology

  • Quarterly
  • /
  • 2671-9525(eISSN)

Domain

  • Environment ＞ Environmental Health

Aim & Scope

Environmental Analysis Health and Toxicology (EAHT) is an open access, peer-reviewed, online journal that receives manuscripts on the fields of research, policy, and teaching of environmental analysis health and toxicology. The journal is published online and includes original articles, reviews, meeting reports, brief reports, case reports, investigation reports, special topics, editorials, and letters. EAHT is formerly known as Environmental Health and Toxicology (2011-2019) and Korean Journal of Environmental Toxicology (1986-2010) and has a 34 year history of publication in the field of environmental analysis, health and toxicology with peer review process. EAHT is an official international journal of The Korean Society of Environmental Health and Toxicology/Korea Society for Environmental Analysis (KOSEHT) and the Korean Society for Environmental Analysis (KSFEA). It is also supported by the Korean Federation of Science and Technology Societies (KOFST) Grant funded by the Korean Government. EAHT has multidisciplinary areas of environmental analysis, health and toxicology, including chemical and biological analysis of environmental contamination, ecotoxicology and risk assessment, environmental chemistry, human toxicology and risk assessment, environmental epidemiology, and environmental exposure assessment. EAHT considers manuscripts that have not been published previously (except as an abstract), and are not being considered for publication elsewhere. A paper presented at a scientific meeting may be considered if it has not been published in full in a proceedings or similar publication. Any closely related manuscript either published, in press, or under review must be sent via e-mail to the journal office at the time of the submission to EAHT. This will allow for a full and fair evaluation of the independent contribution of the submitted paper. EAHT is indexed/tracked/covered by PubMed, PubMed Central, Scopus, ScienceCentral, KoreaMed, KoMCI, Directory of Open Access Journals, and Google Scholar. Journal abbreviation: Environ Anal Health Toxicol

https://submit.eaht.org/ KSCI

Volume 19 Issue 3

  1. Kim Young Mi 235
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    본 연구는 비만세포의 일종인 RBL-2H3 세포주에 대한 hexamethylene bisacetamide (HMBA)의 세포독성 유도 기전이 telomerase의 활성과 관계가 있다는 것에 대한 보고이다. RBL-2H3 세포주에 5mM HMBA를 처리시 그 세포주의 세포성장이 억제 되었다. 기전연구로서 HMBA는 telomerase활성을 억제 하였으며 RT-PCR에 의한 결과 telomerase mRNA발현의 억제에 의한 것이었다. Madl은 telomerase의 발현을 억제하는 억제인자로 잘 알려져 왔으며 이를 확인해본 결과 Madl은 발현은 유의성있게 증가 되었다. 이를 종합해보면, HMBA에 의한 RBL-2H3 세포주에 대한 세포독성은 Madl 발현의 증가에 따른 telomerase발현의 억제에 기인하는 것으로 밝혀졌다.
  2. Oh Jy Young;Lee Su Jung;Shin Jae-Ho;Kim Tae Sung;Moon Hyun Ju;Kang Il Hyun;Kang Tae Seok;Kim An Keun;Han Soon Young 241
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    본 연구는 건전지나 플라스틱 등 산업물질, 식품, 흡연 그리고 공기, 물 등을 통해 인간과 생태계에 노출되고 있는 중금속 카드뮴을 인간 유방암 세포 MCF-7에 처리하였을 때 일어나는 현상을 살펴보고 나아가 카드뮴의 독성기전을 규명하기 위해 시행되었다. 카드뮴으로 인한 아폽토시스는 DNA분절 현상과 핵의 쪼개짐, 세포주기에 있어서 sub-G1의 출현 그리고 아폼토시스시에 발현되는 단백질 caspase의 발현, 특히 산화적 스트레스상태에서 마이토콘드리아가 손상을 입었을 때 발현되는 caspase-9의 발현을 통해 확인하였다. 카드뮴으로 인한 산화적 스트레스는 활성 산소종이 대조군에 비해 증가하고 이를 방어하기 위한 항산화효소 superofide dismutase, catalase, glutathion redurtase가 감소함을 통하여 확인하였다. 이 상의 결과들을 통해 카드뮴은 인간 유방암 세포 MCF-7에서 산화적 스트레스를 유발시켜 아폼토시스를 일으키는 것으로 추정할 수 있다.
  3. Ahn Kwang-Hyun;Lee Kyung-A;Kim Bong-Hee 251
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    Xenoestrogens are chemicals with diverse structure that mimic estrogen. Bisphenol A, a monomer of polycarbonate and epoxy resins, has been detected in canned food and human saliva. Bisphenol A stimulate cell proliferation and induce expression of estrogen -response genes in vitro. The purpose of the this study was to evaluate cell proliferation of bisphenol A in the presence of a rat liver 59 mix contaning cytochrome P450 enzymes and Cu (II). The fragmentation of intact DNA, a parameter of apoptotic cell death, was evaluated quantitatively by diphenylamine reaction method. Bisphenol A induced apoptotic cell death in a dose-dependent manner The effect of radical scavenger on the apoptotic cell death induced bisphenol A was investigated. The DNA fragmentation induced by bisphenol A was significantly inhibited by addition of radical scavenger to the culture medium. This indicated that elevated oxidative stress caused by imbalance between the production and removal of free radicals occurred in cells. Taken together, these results suggest that free radical reacts with Cu (II) leading oxidative stress.
  4. Park Kwangsik 261
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    Although the biological functions of metallothioneins (MTs) are still being investigated, they have been suggested to be involved in detoxification of heavy metals, scavenging of free radicals, and protection against alkylating agents. MTs have been reported to be induced in most of animal tissues by heavy metals such as zinc, copper, mercury and cadmium, and the proteins have binding affinities to the metals. However, the presence or induction of MTs was reported not to be clear in leydig cells, which produce testosterone for the maturation of spermatozoa in male testes. In this study, we investigated the inducibility of metallothionein isomers by cadmium in cultured mouse leydig cells. Total RNA was extracted from the near confluent grown leydig cells and RT-PCR was Performed using the Primers which were synthesized on the basis of MT-1, 2, 3 and 4 cDNA from GenBank database. As results, MT-1 and MT-2 mRNA were found to be expressed in cadmium non-treated control cells and MT 1 mRNA expression was dose-dependent when leydig cells were treated with cadmium chloride. But MT-3 which is known to be brain specific and MT-4 which is another isoform of metallothionein, were not expressed. Other genes induced or depressed in cadmium treated leydig cells were also identified by microarray techniques.
  5. Yeo Min Kyeong;Cho Eun Joung 271
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    Epoxy resins are mostly used as a molding material for drinking water tank. Bisphenol A is used at a constituent material for epoxy resins and is widely suspected to act as an endocrine disrupter. In this study, we investigated embryo hatching in zebrafish reared in water undergone leaching process of expoxy resin, and found a decreased survival rate. Bisphenol A eluted from epoxy resin in drinking water tank was completely degraded by TiO$_2$ photocatalysis. We detected 7.8 ng/ml of bisphenol A in epoxy resin tank, and observed that the concentration was undetectable after 48h photocatalysis over TiO$_2$. There was no toxicity in hatching rates in zebrafish and morphogenesis after photocatalysis. The effect of TiO$_2$ photocatalytic reactions on the catalase activities in the f]y stage of zebrafish was also examined. At 1 week post hatching, cataiase activities were higher both in the group of epoxy resin with 48 h TiO$_2$ photocatalysis and in the TiO$_2$ photocatalysis for 48 hours were higher than control group. However catalase activities of the treatment group of epoxy resin by TiO$_2$ photocatalysis for 48 hours were similar to control in 5 weeks post hatching fries. In conclusion, the toxicity of TiO$_2$ photocatalysis was not observed in this zebrafish.
  6. Lee Jong-Wha;Jang Bong-Ki;Park Jong-An;Park Jong-Young;Kim Wan-Jong;Woo Ki-Min 279
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    Although numerous studies have shown that cadmium disturbs the normal biological processes in central nervous system, the mechanism of toxicity is not well understood. The present study has investigated the effect of cadmium on oxidative stress, Na$^{+}$K$^{+}$ ATPase activity and the aggregation of amyloid beta peptide ($\beta$-amyloid) in neuronal cell line, HT22 cell. LC$_{5}$ and LC$_{50}$ of cadmium for HT22 cell resulted from MTT assay was 4.1 uM and 9.5 uM, respectively. Cadmium (2 to 8 uM) dose-dependently increased the lipid peroxidation and decreased the content of glutathione. Cadmium 4 uM showed a significant decrease in Na$^{+}$/K $^{+}$ ATPase activity as compared with control group. The aggregation of $\beta$-amyloid was accelerated in a dose-dependent manner by the treatment with 2 to 8 uM cadmium. These results suggest that the neurotoxicity of cadmium can be mediated by the increase in oxidative stress and decrease in Na$^{+}$/K$^{+}$ ATPase activity.se activity.
  7. Oh Seung Hyun;Roh Kyung-Jin;Park In-Sun;Min Bon Hong;Doo Ho-Kyung;Ahn Se Young;Kim Yong Suk;Seong Je Kyung 287
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    Diabetic complication is one of major risk factors leading to vascular disease such as atherosclerosis, stroke, coronary heart disease and etc. Several factors affecting the acceleration of diabetic vascular complication have been known such as hypertension, hyperlipidemia, immune complex and genetic factors. To screen and develop new therapeutics agents for diabetic vascular complication, it is strongly needed to develop animal models for diabetic complications. However in rodents models, diabetic complications is not well developed. Furthermore to assess the possibility of new therapeutics for diabetic vascular complications, diabetic animal models which have the risk factors of diabetic complications is needed. We aim to develop and establish an diabetic animal model which have diabetic complications with hyperlipidemia which is one of risk factors for diabetic complications. We induced insulin -dependent diabetes by intra. venous injection of streptozotocin (35 mg/kg/day) in RICO rats which is a spontaneous animal model for hyperlipidemia. Our models (STZ RICO) showed hyperglycemia, persistent high level of plasma cholesterol and triglyceridemia with severe diabetic renal changes until 28 weeks after induction of diabetes. STZ-RICO rats could be used for the evaluations of newly developed diabetic drugs.
  8. Kim Jiwon;Gu Man Bock 295
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    본 연구에서는 유전자 재조합 발광 박테리아를 이용하여 농약에 대한 박테리아의 스트레스 반응과 세포 독성을 분석하였다. 15종류의 농약에 대하여 유전자 손상, 생물막 손상, 산화적 손상 및 단백질 손상을 측정할 수 있는 발광 박테리아와 독성 유무로 인한 세포 독성을 측정할 수 있는 발광 박테리아, 5종을 이용하여 스트레스 반응을 분류하고 세포 독성 정토를 분석하였다. 그 결과, 농약의 화학적 구조가 박테리아의 스트레스 반응에 영향을 미치며, 산화과정이 진행 됨에 따라 독성의 작용 기작이 변하는 것을 확인 할 수 있었다. 이와 같은, 유전자 재조합 발광 박테리아를 이용한 생물체내의 독성 메커니즘에 대한 분석은 생태계 유해물질들에 의한 독성을 분석하고 예상하기 위해 적용될 수 있을 것이다.
  9. Ryu Jae Chun;Kim Youn Jung 307
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    합성화학물질들이 환경으로의 유입은 인체에는 물론 환경생태계에 많은 영향을 미치므로 이들의 유해성 검증은 매우 중요한 일이라 할 수 있다. 실제 산업체에서 사용되는 수많은 화학물질들의 유전적 손상 유발유무는 유해성검증에서 무엇보다 중요한 일이라 할 수 있다. 이에 산업체 공정과정에서 널리 사용되는 것으로 알려진 11종의 합성화학물질에 대해 마우스의 골수 세포를 이용한 in vivo소핵시험을 수행하여, 소핵형성 유발유무를 관찰하였다. 양성대조군으로 사용된 mitomycin C는 음성대조군과 비교시 유의하게 소핵을 유발하는 반면, 비교적 마우스에서 높은 50%치사량을 보이는 thiourea, 2,4-dichlorophenol 및 2,4-toluene diisocyanate 등의 합성물질들을 비롯한 나머지 8종의 물질들은 본 실험결과 통계적으로 유의하게 소핵을 유발하지 않는 것을 관찰 할 수 있었다.
  10. Shin Hea Soon;Shim Sung Hoon 315
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    Environmental waste treatment technology is transforming from incineration system to pyrolysis gasification system. And there it is necessary for our country to adapt gasification system urgently to prevent the land pollution and lack of landfill area. The objective of this study was to determine the pesticides residues of derived product of pyrolysis gasification system for recycling of waste plastic by gas chromatograph-mass selective detector and nitrogen phosphorus detector. The residual pesticides were not detected in derived product of waste recyling. But some pesticide was detected on raw level (0.02 ～ 0.05 ppm) in waste plastic sample.
  11. Jung Hwa Jin;Ryu Jae-Chun;Seo Young Rok 321
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    The study of p53 tumor suppressor protein is one of most important subjects in an environmental toxicology as well as in cancer biology. Generally, p53 has been known to involve the cell cycle regulation and apoptosis by the activation of its target genes such as p21 and bax in a number of cellular stress responses. In addition, associations of p53 with cellular proteins presumably reflect the involvement of p53 in critical cellular processes such as DNA repair. The complex formation of p53 and exogenous proteins such as viral or cellular proteins has been shown in many cases to play important roles in carcinogenic processes against environmental mutagen. Recently, the disruption of p53 protein by oxidative stress has been also reported to have relevance to carcinogenesis. These findings suggested that the maintaining of stability and functional activity of p53 protein was also important aspect to play as a tumor suppressor protein. Therefore, the detection of functional status of p53 proteins might be an effective biomarker for the cancer and human diseases under the environmental toxicologic carcinogen.