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Kang, Gil Ran,Song, Ha Yeun,Kim, Dong Soo The Korean Society of Fisheries and Aquatic Scienc 2014 Fisheries and Aquatic Sciences Vol.17 No.1
Glufosinate-ammonium, a component of the herbicide Basta, is one of the most extensively used pesticides worldwide. In this study, we assessed subchronic and chronic toxicities of Basta and its histopathological effects on the marine medaka Oryzias dancena. Marine medaka were exposed to 0, 2, 4, or 8 mg/L of Basta for 28 or 42 days. The lethal concentration ($LC_{50}$) of Basta for 96 h is 8.76 mg/L. Histological changes in the gills and liver were evaluated with histopathological indices, allowing quantification of the damage to fish exposed to Basta. Blood congestion, lamellar fusion, and epithelial lifting were observed in the gills, and hydropic degeneration, fibrosis, lipid degeneration, leukocyte infiltration, and necrosis were found in the liver. These responses could be useful indicators of Basta toxicity in this species.
( Gil Ran Kang ),( Ha Yeun Song ),( Dong Soo Kim ) 한국수산과학회(구 한국수산학회) 2014 Fisheries and Aquatic Sciences Vol.17 No.1
Glufosinate-ammonium, a component of the herbicide Basta, is one of the most extensively used pesticides worldwide. In this study, we assessed subchronic and chronic toxicities of Basta and its histopathological effects on the marine medaka Oryzias dan- cena. Marine medaka were exposed to 0, 2, 4, or 8 mg/L of Basta for 28 or 42 days. The lethal concentration (LC50) of Basta for 96 h is 8.76 mg/L. Histological changes in the gills and liver were evaluated with histopathological indices, allowing quantification of the damage to fish exposed to Basta. Blood congestion, lamellar fusion, and epithelial lifting were observed in the gills, and hydropic degeneration, fibrosis, lipid degeneration, leukocyte infiltration, and necrosis were found in the liver. These responses could be useful indicators of Basta toxicity in this species.
Development of analysis method for pyrifluquinazon residues in agricultural commodities
Se Ra Won,Nam Suk Kang,Yoon Jung Kang,Ho Won Chang,Sung Ho Woo,Hyang Min Ahn,Su Jin Kim,Su Zie Choi,Si Woo Bark,Gil Ran Kang,Gyeong Jun Kim,Jae I Kim,Tae Seok Kang,Woo Seong Kim 한국분석과학회 2016 학술대회논문집 Vol.2016 No.11
(Kang Jin Cho,(Jong Bum Kim,(Jung Bong Kim,(Dong Gil Kim,(Haeng Ran Kim,(Young Soo Hwang 한국응용생명화학회 2001 Journal of Applied Biological Chemistry (J. Appl. Vol.44 No.2
Extracts from Geum japonicum (Bammu in Korean) were analyzed for their antioxidative activities and scavenging effects on free radicals. The ethyl acetate fraction of G. japonicum methanol extract (EFGJ) showed a remarkable scavenging activity on the 1,1-d
Jeong Ran Kim,Bong Seok Kang,Jeong Heon Ko,Jin Suk Park,Sang Jae Kim,Gil Hwan Bai,Tae Ho Chung,Kyung Soo Nam,Yong Kyung Choi,In Sung Choe,Tae Wha Chung,Young Choon Lee,Cheorl Ho Kim 생화학분자생물학회 1996 BMB Reports Vol.29 No.6
Clinical strains of Mycobacterium tuberculosis. M. terrae complex, M. gordonae. M. auium-intracellulae complex, and M. fortuitum from Korean patients were isolated and analyzed by comparing large restriction fragment (LRF) patterns produced by digestion of genomic DNA with infrequent-cutting endonucleases like Asnl and Xbal, and pulsed-field gel electrophoresis (PFGE). Three M. tuberculosis, two M. terrae complex, two M gordonae, two M auium-intracellulae complex, and two M. fortuitum strains were compared by using Asnl and Xbal, and this allowed easy visual separation of all epidemiologically unrelated strains. PFGE exhibits different DNA restriction patterns which are easy to compare. Genome size of the strains roughly ranged from 3020 to 3335 kb. The LRF patterns are useful for epidemiologic studies of tuberculosis with regard to drug resistance.
Sun-Ran Cho,Yejin Kyung,Soeun Shin,Won-Jin Kang,Dae Hoon Jeong,Seung-Ju Lee,Geun-Ho Park,Sung Il Kim,Sung Woo Cho,Hyun Kyung Kim,Hyun-Na Koo,Gil-Hah Kim 한국응용곤충학회 2018 한국응용곤충학회 학술대회논문집 Vol.2018 No.04
The present study evaluated the susceptibility of field populations of Plutella xylostella and Spodoptera exigua larvae to four diamide insecticides—chlorantraniliprole, cyantraniliprole, cyclaniliprole, and flubendiamide. All the four diamide insecticides induced 100% mortality in the populations from Seongju (SJ) and Geochang (GC) when treated at a concentration recommended for P. xylostella. However, a very low insecticidal activity was observed in the population from Pyeongchang (PC) with 42.3% 3 d after treatment with chlorantraniliprole. Further, the populations of S. exigua from Cheongju (CJ), Jindo (JD), and Yeonggwang (YG) were not completely controlled by the 4 diamide insecticides. A comparison of susceptibility of S. exigua larvae to chlorantraniliprole between 2014 and 2017 showed that chlorantraniliprole induced 100% mortality in all populations in 2014, whereas a very low insecticidal activity was observed among the populations in 2017. This study can serve as a basis to control pests effectively using diamide insecticides.
Thirteen-week Repeated Dose Toxicity and Genotoxicity Studies of Sophorae radix
Ji-Ran You,Jeong-Hwan Che,Seung-Hyun Kim,Euna Kwon,Eun-Young Cho,Jung-Hee Yoon,Yun-Soon Kim,Chang-Gil Kang,Hye-Jeong Jeong,Jung Ki Kim,Ja-June Jang,Hee-Chan Kim,Young-Tae Kim,Hyeon-Hoe Kim,Byeong-Cheo 한국실험동물학회 2007 한국실험동물학회 학술발표대회 논문집 Vol.2007 No.-
Antioxidative and Radical Scavenging Properties of Extracts from Geum japonicum
Cho, Kang-Jin,Kim, Jong-Bum,Kim, Jung-Bong,Kim, Dong-Gil,Kim, Haeng-Ran,Hwang, Young-Soo 한국응용생명화학회 2001 Journal of Applied Biological Chemistry (J. Appl. Vol.44 No.2
Extracts from Geum japonicum (Bammu in Korean) were analyzed for their antioxidative activities and scavenging effects on free radicals. The ethyl acetate fraction of G. japonicum methanol extract (EFGJ) showed a remarkable scavenging activity on the 1,1-diphenyl-2-picrylhydrazyl radical. EFGJ also showed excellent antioxidative activity on linoleic acid during long-period storage and on rat liver microsome peroxidation system, and good anti-peroxidation effect on lipid in Rancimat system using lard, palm oil, and perilla oil, as compared with BHT and ${\alpha}$-tocopherol. Varying effects of antioxidative activity of the EFGJ on various fatty acids were observed. The prevention of linoleic acid and linolenic acid peroxidation was superior to ${\alpha}$-tocopherol, but inferior to BHT. The methanol extract of G. japonicum did not show mutagenicity as revealed through SOS chromotest. Based on the results, the extracts of G. japonicum may be useful source as natural antioxidants.