Jun Lee
Seoul National University
CytotoxicityInternal medicineRhizomeGlycationMolecular biologyCytotoxic T cellChemistryGlycosideAnemarrhena asphodeloidesLignanAnemarrhenaSpectral analysisHuman cancerChromatographyBiochemistryTraditional medicineBotanyStereochemistryMedicineCell cultureBiology
Publications 36
#8Sang Wook KimH-Index: 13
#2Beom Joon KimH-Index: 1
Last. Wi-Sun RyuH-Index: 1
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#1Do Yeon KimH-Index: 8
#2Han Gil JeongH-Index: 1
Last. Dae Hyun KimH-Index: 25
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#1Sang-Hwa LeeH-Index: 5
#2Beom Jin KimH-Index: 5
Last. Dae Hyun KimH-Index: 25
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#3Wan-Seok Kim (SMC: Samsung Medical Center)H-Index: 13
#4Lee S (SKKU: Sungkyunkwan University)H-Index: 17
We read with interest the comments raised by Gong et al .[1][1] on our recently published study,[2][2] and appreciate these important and critical remarks. We agree that contamination is a potential important problem with polymerase chain reaction (PCR)-based work. To avoid the possibility of
#1Yoo Jin LeeH-Index: 14
#2Jun CuiH-Index: 5
Last. Eun-Kyoung SeoH-Index: 27
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Phytochemical investigation of the bark of Juglans sinensis Dode (Juglandaceae) led to the isolation of two active compounds, 8-hydroxy-2-methoxy-1,4-naphthoquinone (1) and 5-hydroxy-2-methoxy-1,4-naphthoquinone (2), together with 15 known compounds 3-17. All compounds were isolated from this plant for the first time. The structures of 1 and 2 were elucidated by spectroscopic data analysis, including 1D and 2D NMR experiments. Compounds 1-17 were tested for their cytotoxicity against the A549 hu...
#1Ah-Reum Han (Ewha Womans University)H-Index: 19
#2Unwoo Kang (Ewha Womans University)H-Index: 9
Last. Eun-Kyoung Seo (Ewha Womans University)H-Index: 27
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#1Yun Seo Kil (Ewha Womans University)H-Index: 8
#2Joo-Won Nam (Ewha Womans University)H-Index: 21
Last. Eun-Kyoung Seo (Ewha Womans University)H-Index: 27
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Angelica keiskei (Shin-sun cho) is an edible higher plant with the beneficial preventive effects on cancer, hypertension, and coronary heart disease. Two bioactive chalcones of Shin-sun cho, xanthoangelol (1) and 4-hydroxyderricin (2), were separated simultaneously by using high-speed counter-current chromatography with a two-phase solvent system composed of n-hexane–EtOAc–MeOH–H2O (9:5:9:4). Only nonconsuming processes, solvent fractionations and Sephadex LH-20 column chromatography, were condu...
#1Seok Won KimH-Index: 4
#2Jun LeeH-Index: 12
Last. Man Woo KimH-Index: 5
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Lower esophageal (Schatzki`s) rings are found in 6-14% of routine barium radiographs. Even though most Schatzki rings are asymptomatic, they are considered to be the most common cause of episodic dysphagia for solids and food impaction in adults. The vast majority of symptomatic Schatzki ring are amendable to dilation. Esophageal dilation can be achieved by bouginage or balloon dilation. The successful diatation of Schatzki`s ring with balloon dilation is rare case in Korea. This 66-year old mal...
#1Seon Woo HwangH-Index: 6
#2Jun LeeH-Index: 12
Last. Dae Sik Jang (Kyung Hee University)H-Index: 30
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Prostaglandin (PG) and thromboxane biosynthesis involves the catalyzed conversion of arachidonic acid, by the sequential actions of cyclooxygenases (COXs) and prostaglandin endoperoxide synthase (PGHS), to prostaglandin H2 (PGH2). 1 Three isozymes of COX (COX-1, COX-2, and COX-3) are known to date, and COX-1 and COX-2 have been well defined. COX-1 is constitutively expressed in many organs or tissues, while COX-2 is induced by various stimuli. 2 However, recent molecular-biological studies show ...
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