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Physiological Effect of Hamcho Yogurt on Streptozotocin-Induced Diabetic Rats
차재영,전병삼,김범규,강호영,조영수,Cha Jae-Young,Jeon Beong-Sam,Kim Beom-Kyu,Kang Ho Young,Cho Young-Su Korean Society of Life Science 2005 생명과학회지 Vol.15 No.4
함초 추출물 분말을 첨가하여 유산 발효시킨 함초 요구르트를 streptozotocin-유발 당뇨쥐에 투여하여 항당뇨효과 및 콜레스테롤 저하 효과를 규명하기 위하여 3주간 실험하였다. 당뇨 대조군에 비해 함초 요구르트 투여군에서 혈당치 농도 및 식이 섭취량이 현저히 감소하였다. 경구당부하 실험에서도 당뇨 대조군에 비해 함초 요구르트 투여군에서 현저한 혈당상승 억제작용을 나타내었다. 당뇨쥐에 함초 요구르트와 일반 요구르트 섭취에 의해 혈중 총 콜레스테롤 농도 감소와 더불어 동맥경화지수도 감소하였다. 따라서, 함초 요구르트에 의한 혈당치 및 콜레스테롤 농도 감소효과는 고혈당증 및 고 콜레스테롤 혈중에도 유익한 작용을 할 수 있는 기능성식품 개발 가능성이 있음을 시사하였다. The present study was undertaken to investigate the hypoglycemic effect of Hamcho yogurt fermented by lactic acid bacteria containing Hamcho (Salicornia herbacea) extract powder in streptozotocin(STZ)-induced diabetic rats for 3 week period. The Hamcho yogurt given to the STZ-diabetic rats had significant effect in lowering the serum glucose concentrations and food intakes compared to the STZ-diabetic rats. The Hamcho yogurt administration increased the tolerance to oral glucose loading in the STZ-diabetic rats. The Hamcho yogurt and yogurt given to the STZ-diabetic rats were significantly decreased the serum total cholesterol concentration and the atherogenic index. Based on the beneficial effect against the blood glucose and cholesterol levels, we suggest the Hamcho yogurt can be used as functional food for the hypoglycemic and hypocholesterolemic effects.
Helicobacter pylori Strain 51의 보유한 Type II 제한효소 (Hpy51-I)의 특성
조명제,박정욱,전병삼,박정원,변은영,이선경,박예형,송재영,이우곤,백승철,최여정,정선애,최미영,Cho, Myung-Je,Park, Jeong-Uck,Jeon, Beong-Sam,Pack, Jeong-Won,Byun, Eun-Young,Lee, Sun-Kyung,Park, Ye-Hyoung,Song, Jae-Young,Lee, Woo-Kon,Baik, Seun 대한미생물학회 2001 Journal of Bacteriology and Virology Vol.31 No.3
This study describes the purification and characterization of type II restriction endonuclease of Helicobacter pylori in order to understand the DNA restriction and modification of H pylori. H pylori cell extract was subjected to polyethyleneimine treatment, salt precipitation, heparine-sepharose column chromatography, and fast protein liquid chromatogrphy (FPLC) using Resource Q column and Mono Q column to purify the type II restriction endonuclease. Hpy51-I was characterized to recognize the sequneces 5'-GT(G/C)AC-3', yielding 5-base 5' protruding ends. The restriction sequence was identical to that of Tsp 45 I. The enzyme exhibited its maximal activity in the presence of $10{\sim}20\;mM$ NaCl, but was inhibited completely in the presence of more than 80 mM NaCl. The enzyme showed its maximal activity in the presence of $1{\sim}10\;mM\;MgCl_2$. The optimal pH and temperature for enzyme activity was pH 9.0 and $37^{\circ}C$, respectively. $MnCl_2$ could not substitute for $MgCl_2$ in reaction mixture. And addition of ${\beta}$-mercaptoethanol and bovine serum albumin in reaction mixture led to loss of enzyme activity of Hpy51-I. The whole cell extract of H. pylori strain 51 was confirmed to carry the enzyme activity for methylation of Hpy51-I-recognised sequence. Hpy51-I digested genomic DNAs of enteric bacteria to less than I kb while it could not cut the genomic DNAs of H. pylori isolates. In this study, the type II restriction enzyme (Hpy51-I) of H. pylori was identified and characterized its biochemical properties, demonstrating that Hpy51-I might be one of the barriers for preventing the introduction of foreign DNAs into H. pylori.
대장암 세포암종 HCT - 15 세포 및 위암 세포암종 AGS 세포에서 차가버섯 조성물에 의한 세포생육 억제 효과
차재영(Jae-Young Cha),전병삼(Beong-Sam Jeon),문재철(Jae-Chul Moon),유지현(Ji-Hyun Yoo),조영수(Young-Su Cho) 한국식품영양과학회 2004 한국식품영양과학회지 Vol.33 No.4
녹차분말을 포함하는 차가버섯 조성물의 수용성 추출물에 의한 인체 위암 세포 AGS 및 대장암 세포 HCT-15, 그리고 마우스 정상세포 NIH3T3 fibroblast의 세포생육에 미치는 효과를 세포수 측정방법과 MTT assay 방법으로 측정하였다. 차가버섯 조성물의 수용성 추출물은 인체 대장암 세포주 HCT-15와 위암 세포주 AGS의 생육을 억제하였다. 그러나 동일한 실험조건하에서 마우스 정상 세포주 NIH3T3은 80% 이상의 생존율을 나타내었다. 본 연구의 결과로 차가버섯 조성물의 수용성 추출물은 정상세포에는 독성을 나타내지 않으면서 위암 및 대장암 세포에는 높은 생육억제 효과를 나타냄을 알 수 있었다. This study was performed to investigate the cytotoxic effect of the water-extract from Chaga mushroom (Inonotus obliquus) compositions containing powdered green tea in HCT-15 human colon carcinoma, AGS human gastric carcinoma and NIH3T3 mouse normal fibroblast cells using viable cell count and MTT assay. The water-extract from Chaga mushroom compositions induced inhibitory effects on proliferation of HCT-15 and AGS cells in the MTT assay and viable cell count. However, mouse normal NIH3T3 cells were exhibited 80% survival under the same condition. Chaga mushroom compositions showed highly antiproliferative effect in human cancer cell line HCT-15 and AGS, but not in mouse normal cell line NIH3T3. These results suggest that Chaga mushroom (Inonotus obliquus) compositions containing powdered green tea are the candidate for chemoprevention in colon and gastric cancer.
Proteome Analysis of Drosophila melanogaster Used 2-DE and MALDI- TOF-MS
박정원,차재영,송재영,김희규,김범규,전병삼,Park Jeong-Won,Cha Jae-Young,Song Jae-Young,Kim Hee-Kyu,Kim Beom-Kyu,Jeon Beong-Sam Korean Society of Life Science 2005 생명과학회지 Vol.15 No.3
초파리는 유전학, 발달 생물학, 행동 유전학, 노화 연구에 이르기까지 수많은 연구에 이용 되어져 왔다. 최근 초파리 전체 유전자의 염기서열이 보고되었으며, 유전자의 기능 분석과 발현 단백질에 대한 연구가 진행되고 있다. 본 연구에서는 야생형 초파리에서 추출한 단백질을 이차원 전기영동을 통해 400여개 이상의 단백질 스폿으로 분리하였으며, 각 스폿을 적출하여 트립신으로 처리하여 얻어진 펩타이드 단편을 MALDI-TOF-MS를 이용한 펩타이드 지문 검색으로 질량을 측정하였다. 측정된 질량을 초파리 데이터 베이스를 이용하여 분리한 단백질을 동정함으로써 59개의 유전자에서 발현되는 65개의 단백질 스폿을 동정하였다. 이러한 결과는 향후의 발생단계, 외부 자극, 노화 등에 관련되는 특이적 단백질 연구의 기초 자료로 활용될 수 있을 것이다. With the completely discovery of the Drosophila genome sequence, the next great challenge is to extract its biological information by systematic expression and to perform functional analysis of the gene. Here we reported a proteome analysis of D. melanogaster with two-dimensional electrophoresis (2-DE) and matrix-assisted laser desorption ionization time-of-flight mass spectrometer (MALDI-TOF-MS). The cell extracts of D. melanogaster, $200{\mu}g$ were resolved to more than 400 silver-stained spots by 2-DE. The most abundant protein spots were ranged from 4.0-7.5 of pI and from 15-90 kDa of molecular weight. The excised spots were destained and in-gel digested by trypsin. The masses of the resulting peptide mixtures were measured by MALDI-TOF-MS. Identified proteins were compared with measured peptide mass and a dynamic peptide searching database which is accessible via the internet. The results revealed that identified proteins were produced by 59 genes derived from 65 protein spots.
고지혈증 흰쥐에 있어서 버섯 분말의 콜레스테롤 저하효과
김범규(Beom Kyu Kim),신갑균(Gab Gyun Shin),전병삼(Beong Sam Jeon),차재영(Jae Young Cha) 한국식품영양과학회 2001 한국식품영양과학회지 Vol.30 No.3
본 실험에서는 0.5% 콜레스테롤과 0.25% 콜산나트륨을 첨가한 콜레스테롤 식이와 콜레스테롤 식이에 4.0% 수준의 버섯분말(Lentinus edodes, Ganoderma lucidum, Pleurotus ostreatus; 5 : 3 : 2, w/w/w) 첨가 식이를 female Sprague-Dawley 흰쥐에 4주동안 섭취시켜 지질농도에 미치는 영향을 조사하였다. 혈청 콜레스테롤 농도는 버섯분말 첨가 식이군에서 57% 감소하고, 혈청 HDL-콜레스테롤 농도는 230% 증가하여 동맥경화 지수가 68.4% 감소함으로써 버섯분말에 항동맥경화 효과가 있는 것으로 사료되었다. 간장 콜레스테롤농도는 콜레스테롤 식이군에 비해 버섯분말 첨가식에서 24.7% 감소하였으나, 중성지질 농도는 50%의 유의한 증가를 나타내었다. 본 실험의 결과 콜레스테롤 식이에 버섯분말의 첨가에 의해 혈중 콜레스테롤 농도 저하효과와 동시에 항동맥경화 효과가 인정되어 버섯분말을 소재로 새로운 생리활성을 가지는 기능성식품개발의 가능성이 시사되었다. This study was performed to evaluate the effect of mushrooms powder (Lentinus edodes, Ganoderma lucidum, Pleurotus ostreatus; 5 : 3 : 2, w/w/w) of on the lipid concentrations in female Sprague-Dawley rats for 4 weeks. Experimental groups were divided into two dietary groups, the cholesterol diet (Cholesterol group) and the cholesterol diet supplemented mixed mushrooms powder (Mushroom group). The concentration of total cholesterol in serum was significantly decreased by 57.4% in mushroom group compared to cholesterol group. The concentration of HDL-cholesterol was significantly increased by 230% in mushroom group compared to cholesterol group. At the same time, atherogenic index was also significantly decreased by 68.4% in mushroom group compared to cholesterol group. The concentration of triglyceride in liver was significantly increased by 50% in mushroom group compared to cholesterol group. However, the concentrations of triglyceride and phospholipid in serum and cholesterol and phospholipid in liver had no significant difference both groups. This study suggested that mixed mushroom powders exert a cholesterole-lowering effect in hyperlipidemic female rats.
Helicobacter pylori Strain 51이 보유한 Type Ⅱ
조명제(Myung-Je Cho),박정욱(Jeong-Uck Park),전병삼(Beong-Sam Jeon),박정원(Jeong-Won Pack),변은영(Eun-Young Byun),이선경(Sun-Kyung Lee),박예형(Ye-Hyoung Park),송재영(Jae-Young Song),이우곤(Woo-Kon Lee),백승철(Seung-Chul Baik),최여정(Y 대한미생물학회 2001 Journal of Bacteriology and Virology Vol.31 No.3