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Ha Young‐Ran,Jeong Se‐Jin,Jang Chang‐Won,Chang Kyu‐Sik,Kim Hyun‐Woo,Cho Shin‐Hyoung,Lee Hee‐Il 한국곤충학회 2021 Entomological Research Vol.51 No.2
Mosquitoes have adapted to various environmental conditions. Symbionts with mosquitoes impact this adaptation in different environments. In the field, mosquitoes could get exposed to antibiotics during their developmental period, which could reduce or eliminate their symbiotic microbes. However, the side effects of the antibiotics on the ovary and reproductive physiology of the Asian tiger mosquito, Aedes albopictus remains unknown. In this study, we investigated the effects of tetracycline and combinations of rifampicin and tetracycline at environmentally acceptable levels on the reproductive physiology of ovaries in Ae. albopictus. Rifampicin and tetracycline in combination reduced the hatching rate and fertility of Ae. albopictus compared to the untreated control group. These antibiotics induced histopathological damage and reactive oxygen species production in the ovaries. The combination of antibiotics decreased the expression of surface protein of Wolbachia (WSP) in Ae. albopictus. Additionally, the expression of Toll like receptor 2 (TLR2) and Myd88 were triggered by the combinations. The findings demonstrate the detrimental effects of antibiotics, particularly combinations of rifampicin and tetracycline, on the reproductive capacity of Ae. albopictus females.
유아름 ( Areum Yu ),양윤정 ( Yoon Jung Yang ),정사랑 ( Sa Rang Jeong ),김지혜 ( Ji Hye Kim1 ),김유진 ( You Jin Kim ),권오란 ( O Ran Kwon ),오세영 ( Se Young Oh ),김정현 ( Jung Hyun Kim ) 대한영양사협회 2013 대한영양사협회 학술지 Vol.19 No.1
Calcium intake has been insufficient in all age groups in previous Korean national surveys. This study was conducted to investigate calcium intake in Korean and American populations at different ages. We analyzed two national survey data: the 2007∼2009 Korean National Health and Nutrition Examination Survey (KNHANES) and the 2007∼2008 National Health and Nutrition Examination Survey (NHANES). Statistically, survey procedures were applied using the weight, cluster, and strata variables. The mean calcium intake of Koreans at ages of 1∼2 y, 3∼5 y, 6∼11 y, 12∼18 y, 19∼64 y, and 65+y was lower than American populations at those ages. The sufficient proportions based on Korean Estimated Average Requirement (EAR) of 1∼2 y, 3∼5 y, 6∼11 y, 12∼18 y, 19∼64 y, and 65+y in Koreans were 45.5%, 33.1%, 24.3%, 16.6%, 32.7%, and 19.0%. While the sufficient rates based on American EAR of 1∼3 y, 4∼8 y, 9∼13 y, 14∼18 y, 19∼30 y, 31∼50 y, 51∼70 y, and 71+y in US population were 88.5%, 54.4%, 35.2%, 35.8%, 55.3%, 55.2%, 40.6%, and 24.5%. Overall, the major foods contributing to calcium intakes in Koreans were milk, baechukimchi, and anchovies, whereas, milk products, pasta, or bread were major contributions to calcium in American populations. The calcium supplement intakes in the American population were 5.5 mg (1∼2 y), 15.5 mg (3∼5 y), 13.9 mg (6∼11 y), 35.7 mg (12∼18 y), 150.3 mg (19∼64 y) and 334.4 mg (≥65 y). These results suggest that Korean adolescents and older adults are the most insufficient in dietary calcium intakes among Koreans. In order to accurately estimate calcium intakes in Korean populations, calcium supplements and calcium-fortified foods should be considered.
Prevalence and antimicrobial resistance of Clostridium difficile isolated from Korean native cattle
Yu-Ran Lee(Yu-Ran Lee),Jong Wan Kim(Jong Wan Kim),Chung Hyun Kim(Chung Hyun Kim),Bun Seung Jo(Bun Seung Jo),Hyun Mi Kim(Hyun Mi Kim),ByungJae So(ByungJae So),Ha-Young Kim(Ha-Young Kim) 한국예방수의학회 2017 한국예방수의학회 학술대회자료집 Vol.2017 No.-
Characterization of Pasteurella multocida from pneumonic lungs of slaughtered pigs in Korea
Jong Ho Kim(Jong Ho Kim),Jong Wan Kim(Jong Wan Kim),Chung-Hyun Kim(Chung-Hyun Kim),Yu-Ran Lee(Yu-Ran Lee),Bun Seung Jo(Bun Seung Jo),ByungJae So(ByungJae So),Ha-Young Kim(Ha-Young Kim) 한국예방수의학회 2018 한국예방수의학회 학술대회자료집 Vol.2018 No.-
Rapid Dissemination of Newly Introduced Plasmodium vivax Genotypes in South Korea
Kim, Yeon-Joo,Kim, Jung-Yeon,Lee, Eun-Gyu,Lee, Byeong-Chul,Cho, Shin-Hyung,Yu, Jae-Ran,Rhie, Ho-Gun,Choi, Yien-Kyoung,Lee, Ho-Sa,Lee, Joo-Shil,Kim, Tong-Soo,Choi, Kyung-Mi,Park, Mi-Hyun American Society of Tropical Medicine and Hygiene 2010 The American journal of tropical medicine and hygi Vol.82 No.3
<P>Reemerged Plasmodium vivax malaria in South Korea has not yet been eradicated despite continuous governmental efforts. It has rather become an endemic disease. Our study aimed to determine the genetic diversity in P. vivax merozoite surface protein-1 (PvMSP-1) and circumsporozoite protein (PvCSP) genes over an extended period after its reemergence to its current status. Sequence analysis of PvMSP-1 gene sequences from the 632 P. vivax isolates during 1996-2007 indicates that most isolates recently obtained were different from isolates obtained in the initial reemergence period. There was initially only one subtype (recombinant) present but its subtypes have varied since 2000; six MSP-1 subtypes were recently found. A similar variation was observed by CSP gene analysis; a new CSP subtype was found. Understanding genetic variation patterns of the parasite may help to analyze trends and assess extent of endemic malaria in South Korea.</P>
Molecular characterization of soybean DnaJ-like protein induced by heat shock stress
Hyun-A So,Eunsook Chung,Chang-Woo Cho,Boh-Hyun Yun,Jee-Sook Kang,Yao Ran,Kyoungmi Kim,Jai-Heon Lee 한국작물학회 2007 한국작물학회 학술발표대회 논문집 Vol.2007 No.11
We isolated wound-inducible genes using suppression subtractive hybridization (SSH) method and were able to obtain to clone w123 gene encoding dnaJ like protein. The full-length cDNA of w123 is 689 bp with an open reading frame (ORF) consisting of 163 amino acid (aa). Genomic southern blot confirmed that soybean genome has two copies of w123 gene. Northern blot analysis was also carried out for the gene expression during heat, NaCl, drought, wounding stresses. The expression of w123 gene specifically induced by heat, NaCl, wounding and drought stress. Using GFP fusion vector, w123-smGFP was targeted both to nucleus. For the functional analysis of w123, His-tagged w123 recombinant protein was heterologously expressed in E. coli. The w123 recombinant cells showed enhanced heat tolerance compared to that of vector control cells. We suggest that dnaJ-like w123 protein function as molecular chaperone in the nucleus of the plant cell during various stresses.