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Paraquat의 殘留毒性에 미치는 완충액의 種類 및 光照射의 影響
金英美,申應男,李錦美,全相愛 효성여자대학교 가정대학 학도호국단 1984 家政大論集 Vol.3 No.-
완충액의 種類 및 光照射가 paraquat의 毒性低下에 미치는 影響을 검토한 結果 使用한 3種(sodium citrate, sodium phosphate, tris-HCl)의 완충액 中 sodium phosphate buffer에 paraquat를 용해하였을 때가 가장 큰 幅으로 毒性이 低下되었다. 經時的으로는 1日만에 約 60%의 細菌이 生育하였고 4日째 내는 95% 以上의 細菌이 生育함으로써 sodium phosphate buffer 中에서는 約 4日만에 paraquate의 毒性이 거의 消滅되었다. 한편, 暗所에 保有한 paraquate에 比하여 自然光구에서 1.3倍 紫外線 照射구에서 約 2倍의 生有율이 檢出되므로 光照射에 의하여 paraquat의 毒性이 보다 빨리 消滅되는 것으로 判斷되었다. Experiment was carried out to understand the effect or buffer solution and light irradiation on toxicity of paraquat against microorgnism. Paraquat most rapidly lost its toxicity in the sodium buffer solution among three kinds of tested solutions. (sodium citrate, sodium phosphate and tris-HCI) By previous incubation of paraquat in the solution for 24 hours, the organism showed about 60 percent of survival rate. The paraquat lost almost of its toxicity as showing at least 95 per cent of survival by continuous incubation for 4 days. The organism showed a survival rate of 1.3 times higher by natural light irradiation and 2.0 times higher by ultraviolet ray irradiation than control.
Guem San Lee,Eun Sook Kim,Su In Cho,Jung Hoon Kim,Goya Choi,Young Sung Ju,Sun Hwa Park,Seung Il Jeong,Hong Jun Kim 한국응용생명화학회 2010 Journal of Applied Biological Chemistry (J. Appl. Vol.53 No.3
7,9,2`,4`-Tetrahydroxy-8-isopentenyl-5-methoxychalcone (THIPMC), isolated from the roots of Sophora flavescens Ait., was found to be active against methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant enterococci (VRE), either alone
( Guem San Lee ),( Eun Sook Kim ),( Su In Cho ),( Jung Hoon Kim ),( Go Ya Choi ),( Young Sung Ju ),( Sun Hwa Park ),( Seung Il Jeong ),( Hong Jun Kim ) 한국응용생명화학회 2010 Applied Biological Chemistry (Appl Biol Chem) Vol.53 No.3
7,9,2`,4`-Tetrahydroxy-8-isopentenyl-5-methoxychalcone (THIPMC), isolated from the roots of Sophora flavescens Ait., was found to be active against methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant enterococci (VRE), either alone or in combination with ampicillin (AM) or gentamicin (GM), vis checkerboard assay. Minimum inhibitory concentrations ranged from 1 to 8 μg/mL for THIPMC, from 128 to 1024 μg/mL for AM, and from 128 to 512 μg/mL for GM, respectively. The combinations of THIPMC plus AM or GM yielded a fractional inhibitory concentration index ranging from 0.188 to 0.375 μg/mL, thereby indicating a synergistic effect. These findings suggest that THIPMC alone or in combination with antibiotics against MRSA might be useful for controlling MRSA infections. However, VRE infection was only effectively treated by THIPMC alone.
Lee, Guem-San,Kim, Eun-Sook,Cho, Su-In,Kim, Jung-Hoon,Choi, Go-Ya,Ju, Young-Sung,Park, Sun-Hwa,Jeong, Seung-Il,Kim, Hong-Jun The Korean Society for Applied Biological Chemistr 2010 Applied Biological Chemistry (Appl Biol Chem) Vol.53 No.3
7,9,2',4'-Tetrahydroxy-8-isopentenyl-5-methoxychalcone (THIPMC), isolated from the roots of Sophora flavescens Ait., was found to be active against methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant enterococci (VRE), either alone or in combination with ampicillin (AM) or gentamicin (GM), vis checkerboard assay. Minimum inhibitory concentrations ranged from 1 to $8\;{\mu}g/mL$ for THIPMC, from 128 to $1024\;{\mu}g/mL$ for AM, and from 128 to $512\;{\mu}g/mL$ for GM, respectively. The combinations of THIPMC plus AM or GM yielded a fractional inhibitory concentration index ranging from 0.188 to $0.375\;{\mu}g/mL$, thereby indicating a synergistic effect. These findings suggest that THIPMC alone or in combination with antibiotics against MRSA might be useful for controlling MRSA infections. However, VRE infection was only effectively treated by THIPMC alone.
목통(木通),천목통(川木通),관목통(關木通)의 감별기준(鑑別基準)
이금산 ( Guem San Lee ),박경범 ( Kyoung Bum Park ),김영식 ( Young Sik Kim ),이승호 ( Seung Ho Lee ),오현민 ( Hyun Min Oh ),백지성 ( Ji Seong Baek ),조수인 ( Su In Cho ),김홍준 ( Hong Jun Kim ),주영승 ( Young Sung Ju ) 대한본초학회 2011 大韓本草學會誌 Vol.26 No.1
Objectives: Due to morphological similarity, many substitutes and counterfeits have been used as Moktong for thousands of years. This study was designed to determine discriminative criteria for identifying medicinal herbs used as Moktong. Methods: Akebia quinata, A. trifoliata, Clematis armandii, and Aristolochia manshuriensis were collected in various regions. Samples were authenticated and examined by observation and microscopy with paraffin embedding and triple staining using the modified Ju staining method. Results: Three different types of features to establish discriminative criteria for four kinds of Moktong were identified. Botanical features include differences in phyllotaxy, leaf shape, and caulescent. External morphological features were arrangement and size of fine holes(xylem), and overall shape of the section. Internal morphological features include the number of medullary rays, shape of the pitch, type of tissues rounding pitch, appearance of annual rings, shape and amount of crystals(calcium-oxalate), and the appearance of cork cambium. Further details( e.g. identification keys) are in the article. Conclusions: These criteria could provide an effective method for identifying numerous kinds of Moktong distributed in markets throughout northeast Asian nations.
이금산 ( Guem San Lee ),김정훈 ( Jung Hoon Kim ),최고야 ( Go Ya Choi ),강대훈 ( Dae Hoon Kang ),황성연 ( Sung Yeoun Hwang ),정승일 ( Seung Il Jeong ),김홍준 ( Hong Jun Kim ),주영승 ( Young Sung Ju ) 대한본초학회 2008 大韓本草學會誌 Vol.23 No.4
Objectives: To determine the standards for discrimination of Magnoliae Cortex, the experiment of specific external-internal characters and the physicochemical pattern analysis were performed. Methods: External characteristics was observed using a stereoscope. Paraffin-mediated sectioned materials were stained by Ju`s method. Physicochemical patterns of materials were analyzed using HPLC. Results: 1. Botanical characteristics: Magnolia officinalis had one seed and a white flower, while M. obovata had two seeds and a white flower. Machilus thunbergii had berry and spherical fruits and yellowish green panicles. 2. External characteristics: M. officinalis and M. obovata were dark and thick. M. officinalis was gray brown and greasy while M. obovata was light-gray, less oily and smoothly sectioned. Machilus thunbergii was thin and relatively light or yellow-brown, coarsely sectioned and faintly specific scents. 3. Internal characteristics: The bast parts of M. officinalis and M. obovata were commonly wider than Machilus thunbergii. The cork cortex of M. officinalis was 10~mg/L cell layers with many oil cells, while that of M. obovata was 4~7 cell layers with less oil cells. Machilus thunbergiis xylem which consisted of ring-shaped cambium at 1st and 2nd part was occupied in large portion. 4. Physicochemical pattern: Both M. officinalis and M. obovata involved honokiol and magnolol. All kinds of M. officinalis involved Magnatriol B but one kind of M. ovobata and all of Machilus thunbergii didn`t. Machilus thunbergii showed different pattern of chromatogram from that of 2 species above. Conclusions: These results could be used as standards for discrimination of Magnoliae Cortex and as the method of objectification in medicinal herbs giving the basic resource for bioactivity research.
Peucedanum japonicum Thunb. ethanol extract suppresses RANKL-mediated osteoclastogenesis
Kim, Jeong-Mi,Erkhembaatar, Munkhsoyol,Lee, Guem-San,Lee, Jin-Hyun,Noh, Eun-Mi,Lee, Minok,Song, Hyun-Kyung,Lee, Choong Hun,Kwon, Kang-Beom,Kim, Min Seuk,Lee, Young-Rae Spandidos Publications 2017 Experimental and therapeutic medicine Vol.14 No.1
이승호 ( Seung Ho Lee ),김영식 ( Young Sik Kim ),김정훈 ( Jung Hoon Kim ),이금산 ( Guem San Lee ),최고야 ( Go Ya Choi ),주영승 ( Young Sung Ju ) 대한본초학회 2014 大韓本草學會誌 Vol.29 No.4
To present a differential standard of Armeniacae Semen and Persicae Semen that are easily confused. Methods : It was planed a differential standard form through outer appearance of the original plant, outer appearance in the form of each medicines and the appearance of the interior form through a microscope for each samples. Using an standard compound amygdalin, each samples have been analyzed by HPLC and TLC. Results : It was possible to distinguish the orignal plant between Armeniacae Semen and Persicae Semen through its leaf shape and calyx type. In Outer appearance in the form of each medicines, there was no difference pre-existing method(measuring length and width). In vascular pattern of the surface, however, there was a clear difference that Armeniacae Semen was developed more reticulated branches than Persicae Semen. In appearance through a microscope, it has not been possible to find a clear difference in the per original plant. However, there was a clear difference between Armeniacae Semen(1 layer) and Persicae Semen(3 layer) in inner albubemen cell. In TLC analysis, there was no difference in the pattern between samples. But in HPLC analysis, Armeniacae Semen showed amygdalin content higher on average. Conclusions : It will be possible to find various differences in the outer appearance of the original plant, the outer appearance in the form of each medicines, the appearance of the interior form through a microscope and physical and chemical research component.
Effects of Hwangryunhaedok-tang on gastrointestinal motility function in mice
Kim, Hyoyeon,Kim, Iksung,Lee, Min Cheol,Kim, Hyun Jung,Lee, Guem San,Kim, Hyungwoo,Kim, Byung Joo Baishideng Publishing Group Inc 2017 WORLD JOURNAL OF GASTROENTEROLOGY Vol.23 No.15
<P><B>AIM</B></P><P>To investigate the effects of Hwangryunhaedok-tang (HHT) on gastrointestinal (GI) motility in mice.</P><P><B>METHODS</B></P><P>The effects of a boiling water extract of HHT (HHTE) on GI motility were investigated by calculating percent intestinal transit rates (ITR%) and gastric emptying (GE) values using Evans Blue and phenol red, respectively, in normal mice and in mice with experimentally induced GI motility dysfunction (GMD). In addition, the effects of the four components of HHT, that is, Gardeniae Fructus (GF), Scutellariae Radix (SR), Coptidis Rhizoma (CR), and Phellodendri Cortex (PC), on GI motility were also investigated.</P><P><B>RESULTS</B></P><P>In normal ICR mice, ITR% and GE values were significantly and dose-dependently increased by the intragastric administration of HHTE (0.1-1 g/kg). The ITR% values of GMD mice were significantly lower than those of normal mice, and these reductions were significantly and dose-dependently inhibited by HHTE (0.1-1 g/kg). Additionally, GF, CR, and PC dose-dependently increased ITR% and GE values in normal and GMD mice.</P><P><B>CONCLUSION</B></P><P>These results suggest that HHT is a novel candidate for the development of a gastroprokinetic agent for the GI tract.</P>
Kim, Hyun Jung,Lee, Guem San,Kim, Hyungwoo,Kim, Byung Joo WJG Press 2017 WORLD JOURNAL OF GASTROENTEROLOGY Vol.23 No.29
<P><B>AIM</B></P><P>To investigate the effects of a water extract of Hwangryunhaedok-tang (HHTE) on the pacemaker potentials of mouse interstitial cells of Cajal (ICCs).</P><P><B>METHODS</B></P><P>We dissociated ICCs from small intestines and cultured. ICCs were immunologically identified using an anti-c-kit antibody. We used the whole-cell patch-clamp configuration to record the pacemaker potentials generated by cultured ICCs under the current clamp mode (<I>I</I> = 0). All experiments were performed at 30 °C-32 °C</P><P><B>RESULTS</B></P><P>HHTE dose-dependently depolarized ICC pacemaker potentials. Pretreatment with a 5-HT<SUB>3</SUB> receptor antagonist (Y25130) or a 5-HT<SUB>4</SUB> receptor antagonist (RS39604) blocked HHTE-induced pacemaker potential depolarizations, whereas pretreatment with a 5-HT<SUB>7</SUB> receptor antagonist (SB269970) did not. Intracellular GDPβS inhibited HHTE-induced pacemaker potential depolarization and pretreatment with a Ca<SUP>2+</SUP>-free solution or thapsigargin abolished the pacemaker potentials. In the presence of a Ca<SUP>2+</SUP>-free solution or thapsigargin, HHTE did not depolarize ICC pacemaker potentials. In addition, HHTE-induced pacemaker potential depolarization was unaffected by a PKC inhibitor (calphostin C) or a Rho kinase inhibitor (Y27632). Of the four ingredients of HHT, Coptidis Rhizoma and Gardeniae Fructus more effectively inhibited pacemaker potential depolarization.</P><P><B>CONCLUSION</B></P><P>These results suggest that HHTE dose-dependently depolarizes ICC pacemaker potentials through 5-HT<SUB>3</SUB> and 5-HT<SUB>4</SUB> receptors <I>via</I> external and internal Ca<SUP>2+</SUP> regulation and <I>via</I> G protein-, PKC- and Rho kinase-independent pathways.</P>