Byung-Eui Lee
Soonchunhyang University
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Publication
Featured researches published by Byung-Eui Lee.
Phytomedicine | 2016
Kung-Woo Nam; Woong Sik Jang; Md. Anirban Jyoti; Sukyung Kim; Byung-Eui Lee; Ho-Yeon Song
BACKGROUND The increasing incidence of multidrug-resistant tuberculosis (MDR-TB) infections has created a need for new effective drugs that also target extensively drug-resistant tuberculosis (XDR-TB) and/or augment the activities of existing drugs against tuberculosis. AIM This study searched natural products for a new lead compound that targets MDR/XDR-TB. METHODS An active compound was purified from the roots of Cynanchum atratum Bunge (Asclepiadaceae) after screening 1640 plant extracts, and its inhibitory effects against MDR/XDR strains and synergistic effects with existing anti-TB drugs were assessed using the resazurin, MGIT, and checkboard assays. RESULTS (-)-Deoxypergularinine, purified from the roots of C. atratum, inhibited not only M. tuberculosis but also MDR/XDR strains. The minimum inhibitory concentrations (MICs) of (-)-deoxypergularinine for H37Ra, H37Rv, MDR, and XDR strains were all about 12.5 µg/ml. Moreover, combinations of (-)-deoxypergularinine with the first-line standard drugs rifampicin or isoniazid afforded six- and eight-fold reductions in drug MIC values, respectively, against strain H37Ra. CONCLUSIONS (-)-Deoxypergularinine exerts anti-tubercular activities not only against normal tuberculosis strains but also MDR/XDR strains, and synergic effects with rifampicin and isoniazid for the H37Ra strain. The alkaloid may be valuable for targeting M/XDR M. tuberculosis.
Journal of Mushroom | 2014
Chan-Jung Lee; Young-Mi Yoo; Chang-Sung Jhune; Jong-Chun Cheong; Ji-Won Moon; Won-Sik Kong; Jang-Sun Suh; Yong-Gyun Kim; Byung-Eui Lee; Min-Ho Yoon
양송이 재배농가는 복토재료로 흙을 사용하고 있으며, 대부분의 농가는 채취된 그대로 사용하고 있어 흙속에 있는 각종 병원균의 감염으로 버섯재배에 실패하는 농가가 많다. 복토 살균온도에 따른 미생물의 밀도변화를 조사한 결과 호기성세균은 양송이 생육주기가 길어질수록 증가하였으며 2주기 수확후 부터는 급격히 증가하였다. 사상균은 복토 8일째 무처리에서 급격히 증가하였고, 살균 처리구에서는 증감을 반복하다가 2주기 수확후 부터 급격히 증가하였다. 푸른곰팡이균도 증감을 반복하다가 2주기 수확후부터 급격히 증가하였다. 형광성 Psuedomonas속은 살균온도가 높은 처리구에서 높은 밀도를 보였으며, 복토 22일에는
Journal of Chemotherapy | 2017
Woong Sik Jang; Young-Sang Choi; Sukyung Kim; Md. Anirban Jyoti; Hoonhee Seo; Juhye Han; Yong-Sik Kim; Jiwon Lyu; Kung-Woo Nam; Byung-Eui Lee; Kee-In Lee; Ho-Yeon Song
100^{\circ}C
Journal of Mushroom | 2015
Byung-Joo Lee; Mi-Ae Lee; Yong-Gyun Kim; Kwang-Won Lee; Byung-Eui Lee; Geon-Sik Seo
-30분과 60분에서 다른 처리구보다 급격히 증가하였다. 중온성 방선균은 복토 15일 약간 증가하는 경향을 보였다가 1주기 수확후부터 급격히 증가하였다. 고온성 방선균은 복토 15일에 급격히 증가하여 복토 22일에 가장 높은 밀도를 보였지만, 1주기 수확후 부터 급격히 감소하였다. 양송이버섯의 수량과 품질은
Journal of Mushroom | 2014
Ki-Cheon Kyeong; Yong-Gyun Kim; Chan-Jung Lee; Byung-Eui Lee; Heon-Hak Lee; Min-Ho Yoon
80^{\circ}C
Journal of Mushroom | 2014
Byung-Joo Lee; Mi-Ae Lee; Yong-Gyun Kim; Kwang-Won Lee; Byung-Eui Lee; Ho-Yeon Song
-90분에서는 상품 및 중품의 수량이 가장 높았다. 병해충 발생은
Journal of Mushroom | 2013
Byung-Joo Lee; Mi-Ae Lee; Yong-Gyun Kim; Kwang-Won Lee; Young-Sang Choi; Byung-Eui Lee; Ho-Yeon Song
100^{\circ}C
Phytomedicine | 2018
Sukyung Kim; Hoonhee Seo; Hafij Al Mahmud; Imtiazul Islam; Byung-Eui Lee; Myoung-Lae Cho; Ho-Yeon Song
-30분 처리에서 가장 낮았지만 양송이의 수량이 낮았으며,
Phytotherapy Research | 2017
Hoonhee Seo; Sukyung Kim; Hafij Al Mahmud; Imtiazul Islam; Kung-Woo Nam; Byung-Eui Lee; Hanna Lee; Myoung-Lae Cho; Heung-Mook Shin; Ho-Yeon Song
100^{\circ}C
Journal of Mushroom | 2016
Byung-Eui Lee; Chan-Jung Lee; Min-Ho Yoon; Yong-Gyun Kim; Byung-Joo Lee
-60분 처리구에서는 양송이 수량은 높았으나, 병해충의 발생이 높았다. 따라서 양송이 재배를 위한 복토의 적정 살균조건은