• 제목, 요약, 키워드: Viscum album

검색결과 106건 처리시간 0.042초

식중독 유발 세균의 증식에 미치는 겨우살이 추출물의 영향 (Antimicrobial Effect of Viscum album var. coloratum Extracts on Food-Borne Pathogens)

  • 배지현;노숙희;박효정
    • 동아시아식생활학회지
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    • v.15 no.2
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    • pp.182-187
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    • 2005
  • This study was performed to investigate the antimicrobial effect of the Viscum album var. coloratum extracts against food-borne pathogens. First, the Viscum album var. coloratum was extracted with methanol at room temperature and the fractionation of the methanol extracts was carried out by using petroleum ether, chloroform, and ethyl acetate, and methanol, respectively. The antimicrobial activity of the Viscum album var. coloratum extracts was determined by using a paper disc method against food-borne pathogens and food spoilage bacteria. The petroleum ether extracts of Viscum album var. coloratum showed the highest antimicrobial activity against Bacillus cereus and Shigella dysenteriae. Synergistic effect in inhibition was observed when Viscum album var. coloratum extract was mixed with Perillae folium extract as compared with each extract alone. Finally, the growth inhibition curves were determined by using petroleum ether extracts of Viscum album var. coloratum against Bacillus cereus and Shigella dysenteriae. The petroleum ether extract of Viscum album var. coloratum had strong antimicrobial activity against Bacillus cereus at the concentration of 5,000 ppm. At this concentration, the growth of Bacillus cereus was retarded more than 24 hours and up to 12 hours for Shigella dysenteriae. In conclusion, the petroleum ether extracts of Viscum album var. coloratum inhibit efficiently Bacillus cereus and Shigella dysenteriae.

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겨우살이 lectin의 흰쥐 간세포 독성에 미치는 영향 (The Cytotoxicity of Rat Hepatocytes on Viscum album Lectin)

  • 장철수;류재기;김태호
    • 대한임상검사과학회지
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    • v.39 no.3
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    • pp.190-195
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    • 2007
  • In the present study, the author investigated to the cytotoxocity in cultured rat hepatocytes of Viscum album lectin. The cytotoxcity effect in Viscum album lectin on the activity of LDH was also investigated. Viscum album lectin significantly increased LDH leakage into medium of hepatocytes treated or untreated with $CCl_4$ (p<0.001). However, Viscum album lectin significantly increased LDH leakage from $CCl_4$-induced hepatocyte (p<0.001). There was a significant increase in LDH levels relative to the control group. Histological observation basically supported the result obtained from LDH assay. The livers of rats challenged with $CCl_4$ produced a marked increased cytoplasmic vacuoles and inflammatory cells in number, while the number of necrotic cells and swollen hepatocytes did not change significnatly. Rats administered DMSO alone did not alter the normal hepatic architecture. Histological observation of liver section in rat treated 72 hrs with either Viscum album lectin $CCl_4$-induced liver damage showed number of cytoplasmic vaculoe and necrotic cell. The number of inflammatory cell increased markedly. This results suggest to the conclusion that Viscum album lectin has a effect of hepatotoxicity activator.

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겨우살이 Lectin이 지질대사에 미치는 영향 (Effect of Lipid Metabolism in Viscum album Lectin on Rats)

  • 장철수;황석연
    • 대한임상검사과학회지
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    • v.36 no.2
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    • pp.131-136
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    • 2004
  • This study was carried out to investigate effect of lipid metabolism in Viscum album lectin on rats. The lectin was purified by sepharose 4B affinity chromatography and gel filtration using sephadex G-150 with plant material from Viscum album collected in Mt. Duk Yui. After 72 h of $CCl_4$ injection (in olive oil, 1:1, 2 mg/kg) there was a significant increase in serum total cholesterol and triglycerige levels relative to the control group. However, treatment of both Viscum album and purified lectin were significantly decreased lipid parameters against the $CCl_4$-induced. Histological observation basically supported the result obtained from serum lipid assay. The livers of rats challenged with $CCl_4$ produced a marked increase of cytoplasmic vacuoles in number, while the number of necrotic cells and swollen hepatocytes did not change significnatly. Rats administered olive oil alone did not alter the normal hepatic architecture. Histological observation of the liver section in rats treated 72 h with either Viscum album purified lectin or $CCl_4$-induced liver lipogenesis showed decreased numbers of cytoplasmic vaculoes and necrotic cells. The normal hepatic architectural pattern was observed in Hematoxylin-eosin stain. These results suggest that Viscum album lectin has a possible protective effect of lipid metabolim in rats.

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Antitumor Activities of Extract of Viscum album var. coloratum Modified with Viscum album var. coloratum Agglutinin

  • Lyu, Su-Yun;Rhim, Jee-Young;Moon, You-Sun;Jung, Seung-Hee;Lee, Kyue-Yim;Park, Won-Bong
    • Natural Product Sciences
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    • v.8 no.4
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    • pp.155-161
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    • 2002
  • The mistletoe lectins are major active components in the extract of European mistletoe (Viscum album L) that have been widely used in adjuvant chemotherapy of cancer. This study was performed to investigate the antitumor activity of extract of Korean mistletoe (Viscum album var. coloratum) modified with Korean mistletoe lectin (Viscum album var. coloratum agglutinin, VCA). Compared with the results of VCA, survival rate was increased and experimental lung metastasis was reduced by treatment of modified extract (VCM). In addition, the treatment of VCM reduced angiogenesis and VCA-induced toxicity measured by a CAM assay. And VCM inhibited proliferation and induced apoptosis in vitro in tumor cells originated from tissues which are possible to apply topically without surgery. Taken together, the antitumor activities of VCM-treated group outperformed the activities of the VCA-treated group.

겨우살이 Lectin이 흰쥐의 혈청지질 및 간조직에 미치는 영향 (Effects of Serum Lipid and Liver Tissue on Rats in Lectin from Viscum Album(Mistletoe))

  • 장철수;류재기
    • 한국콘텐츠학회논문지
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    • v.12 no.9
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    • pp.244-249
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    • 2012
  • 본 연구에서 국내산 겨우살이 lectin이 흰쥐 간의 지방형성에 미치는 영향을 알아보기 위해 혈청 내 지질 함량을 측정하였고, 이를 확인하고자 간조직의 지방형성 변화를 조사하였다. 렉틴의 분리는 sephadex G-150로 여과 및 sepharose 4B affinity chromatography 로 정제하였다. $CCl_4$를 복강 내에 투여시 72시간 경과 후 혈청 총cholesterol 및 triglyceride는 정상군 및 olive oil 투여군에 비해 유의하게 증가하였으며, lectin과 $CCl_4$를 동시 투여 하였을 때는 유의한 감소를 나타내였다. 흰쥐 간의 조직학적 관찰은 $CCl_4$투여군은 정상군 및 olive oil 투여군에 비해 지방변화 및 간세포 내에 많은 대소의 cytoplasmic vacuole가 보였으나, $CCl_4$와 lectin을 동시 투여시는 $CCl_4$ 투여군에 비해 cytoplasmic vacuole은 현저히 감소하였고, 이에 비례하여 혈청 cholesterol 및 triglyceride 측정치가 현저히 감소하는 결과를 나타내었다. 이상의 결과를 볼때 흰쥐에서 lectin이 혈청 지질을 감소시키거나 또는 조직학적 관찰에서 간조직의 지질형성을 억제시키는 효과가 있는 것으로 확인되었다.

Bleeding Time Prolongation Effect of Methanol Extract of Viscum album var. coloratum

  • Yang, Hyun-Ok;Park, Shin-Young;Hong, Kyung-Hee;Kang, Lin-Woo;Choe, Kwang-Hoon;Kim, Young-Kyoon
    • Natural Product Sciences
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    • v.8 no.4
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    • pp.152-154
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    • 2002
  • The methanol extract of Viscum album var. coloratum, Korean mistletoe, showed potent prolongation effects on the bleeding time in rats in vivo, and whole blood clotting time and plasma recalcification time in rats ex vivo. The prolongation effect on the bleeding time of Korean mistletoe is comparable to that of Viscum album L., European mistletoe, 185.6% and 176.5%, respectively. However, the water extracts of the both plants did not show any prolongation effects. Platelet activating factor (PAF) receptor binding assay was carried out to elucidate the action mechanisms of the extracts, and both of the methanol extracts did not show any inhibitory activity. The $LD_{50}$ of the methanol extracts of both mistletoes are more than 2 g/kg. These results suggest that the mehtanol extract of Korean mistletoe might be a potential candidate to develop new drug to improve microcirculation.

Comparative Study of Korean (Viscum album var. coloratum) and European Mistletoes (Viscum album)

  • Lyu, Su-Yun;Park, Sun-Myo;Choung, Bo-Yun;Park, Won-Bong
    • Archives of Pharmacal Research
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    • v.23 no.6
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    • pp.592-598
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    • 2000
  • A lectin (agglutinin, VCA) from Korean mistletoe (Viscum album L. coloratum) was isolated by affinity chromatograpy on a asialofetuin-Sepharose 4B. The molecular weights of A- and B-chains of VCA were different from those of VAAS. The VCA recognized the antibody of VAAs in the Western blot analysis and ELLA system. We also investigated the synergistic effects of the components in mistletoe by dividing the extract into different molecular weight fractions.

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Acute Respiratory Distress Syndrome after Viscum album Pleurodesis for Primary Spontaneous Pneumothorax

  • Noh, Dongsub;Park, Joon Suk;Lee, Doo Yun
    • Journal of Chest Surgery
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    • v.50 no.1
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    • pp.64-67
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    • 2017
  • A 52-year-old male patient who underwent multiple wedge resections experienced postoperative acute respiratory distress syndrome in both lungs after Viscum album pleurodesis. Despite initial rapid deterioration in clinical condition and rapid progression of bilateral lung infiltration, he exhibited a relatively smooth clinical recovery with marked response to glucocorticoid treatment. Our case report suggests that care must be taken to guard against the development of acute respiratory complications in the use of Viscum album for pleurodesis. However, in view of the clinically benign course, initial aggressive management of complications can prevent suffering and sequelae.

악성 흉막삼출액에서 Viscum Album 치료 (Viscum Album Therapy in Malignant Pleural Effusion)

  • 김종중;이석기;임진수;최형호
    • Journal of Chest Surgery
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    • v.37 no.12
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    • pp.978-982
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    • 2004
  • 배경: 악성 흉막 삼출액은 암환자에서 흔히 나타나는 임상 증상이며, 진단이 되면 보존적 요법으로 치료하는데, 가장 흔히 사용되는 방법은 화학적 흉막 유착술이다. 가장 보편적으로 사용되는 talc는 환자 삶 질을 향상시키는 못한다. 저자들은 악성 흉막 삼출액을 치료하는 다른 경화제인 Viscum album에 대하여 평가하였다. 대상 및 방법: 2001년 11월부터 2003년 10월까지 악성 흉막 삼출액으로 치료를 받은 17명을 대상으로 하였다. Talc group I (10명)과 Viscum album group II (7명)으로 나누어서 후향적으로 여러 가지 인자와 결과를 비교하였다. 결과: 성별, 연령, 원발성 종양 및 병변 부위는 양군 간에 차이는 없었지만, 성공률은 group I에서 더 높았고, group II에서는 시술 후 더 짧은 흉관 유지 기간, 더 높은 Karnofsky performance와 낮은 재발률을 보여 주었다. 치료가 실패한 경우는 흉막 삼출액 pH 및 흉강삽관술 시행 후 화학적 흉막 유착술 기간과 관련이 있었다. 결론: Viscum album을 이용한 화학적 흉막 유착술이 talc를 사용한 경우보다 성공률은 약간 낮았지만,악성 흉막 삼출액 환자의 삶에 대한 질을 향상시킬 수 있기 때문에 선택된 경우에 대용 치료법이 될 수 있을 것 같다.

겨우살이 Lectin의 항당뇨 효과 (Anti-diabetic Effect of Viscum album Lectin)

  • 장철수;노광수
    • 대한의생명과학회지
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    • v.6 no.2
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    • pp.151-157
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    • 2000
  • 겨우살이 (Viscum atbum)는 민간요법에서 여러 질환에 치료제로 쓰이고 있다. 이는 겨우살이가 가지고 있는 lectin의 약리작용에 의한 것으로 그 가능성을 알아보고자 겨우살이 lectin의 항당뇨 효과를 연구하였다. 이를 위해 streptozotocin으로 당뇨를 유발시킨 흰쥐에 국내 참나무류에 기생하는 겨우살이의 추출물과 정제된 lectin을 경구와 복강내에 투여하여 조사하였다. 추출물을 29일 동안 경구 투여시 혈당치가 36%까지 현저히 감소하였으나, 정제된 lectin을 경구 투여시 항당뇨 효과가 현저히 나타나지 않았다 또한 정제된 lectin 0.4 mg/kg을 복강내에 주사시 당뇨군에서 2시간과 4시간에서 saline에 비 해 혈당치가 각각 32%와 28% 감소하였으므로 lectin의 항당뇨 효과는 뚜렷하였다.

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