• 생명과학회지
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• 제13권3호
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• pp.333-342
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• 2003

STZ(50mg/kg BW)을 대퇴부 근육에 주사하여 당뇨를 유발시킨 당뇨 흰쥐(Sprague Dawley, 수컷)에서 10% 부추 첨가식이가 혈액과 적혈구, 간조직의 지질과산화 정도와 항산화 효소계 활성 및 GSH 수준에 미치는 영향을 조사하였다. 실험군은 정상군, 당뇨대조군, 당뇨부추군의 3군 (n=10)으로 나누었으며 4주간 사육한 후 실험에 이용하였다. STZ로 유발된 당뇨대조군의 적혈구, 간과 LDL의 TBARS와 conjugated dienes 함량은 대조군에 비해 증가하였으나, 당뇨부추군에서는 적혈구의 conjugated dienes 수준이 유의적으로 감소하였고(p<0.05), 간과 LDL의 TBARS 수준은 당뇨대조군에 비해 다소 감소하여 정상대조군과 차이를 보이지 않았다. 간에서의 항산화 효소계 중 SOD 활성은 대조군에 비해 당뇨대조군에서 증가하였고, catalase 활성은 당뇨대조군에 비해 부추를 섭취한 당뇨군에서 유의적으로 증가하였다. GSH-px와 GSH-red 활성은 대조군에 비해 당뇨대조군에서 유의적으로 감소하였으나(p<0.05), 당뇨부추군에서는 다소 증가하였다. 간의 GSH 함량은 대조군과 당뇨대조군에 비해 당뇨부추군에서 유의적으로 증가하였으며(p<0.01), 혈장의 GSH 함량은 대조군에 비해 당뇨군에서 유의적으로 감소하였다(p＜0.05). GOT와 GPT 활성은 정상대조군에 비해 당뇨대조군에서 급격히 증가하였으나 당뇨부추군에서는 정상군 수준으로 감소하였다. 이상의 결과로 미루어 볼 때, 부추는 간의 항산화효소계를 활성화시키고 간조직의 GSH수준을 높게 유지하여 고혈당과 STZ로부터 유발된 산화적 스트레스(지질과산화)를 해소함으로써 당뇨로 인한 합병증 예방 및 치료를 위한 식품자원으로 활용이 가능한 것으로 사료된다.도 및 동맥경화지수를 낮추는 효과가 있고, HDL- 콜레스테롤 농도를 증가시키는 효과가 있는 것으로 나타났다.각된다. 7) 발병부위는 대부분 막성유리연의 중간부 및 전방부 1/3에서 발생하였고 수술 결과는 저류낭종 82례 중 25례(30.5%)에서만 낭종의 파열 없이 완전제거가 가능하였으며 유표피낭종 30례 중에서는 21례(70.0%)에서 완전제거가 가능했던 것으로 나타나 저류낭종이 유표피낭종에 비해 낭종을 파열시키지 않고 완전히 제거하는 것이 더욱 어려움을 알 수 있었다. 따라서 저류낭종의 경우 낭종의 절제가 어려운 경우 수술방법으로 조대술(marsupialization)을 시행하는 것도 의미가 있을 것으로 사료된다. 8) 수술 전 후의 음성만족도를 비교한 조사 결과 조사가 가능했던 82례 중 49례(52.0%)에서 만족할 만한 결과를 보였다고 답하여 성대 폴립수술 후의 만족도와 유사한 결과를 보였다.14%, V. mimicus 10%, V. parahaemolyticus 4%, E. coli O157:H7 48%에서 증식되지 않았지만 S. typhimurium은 50%에서도 집락이 검출되었다. 젖산의 경우 V. vulnificus 2%, V. cholerae non-O1 3%, V. mimicus 4%, V. parahaemolyticus 3%, S. typhimurium 14%, E. coli O157:H7 17%에서 증식되지 않았다. 식초와 젖산은 낮은 농도에서 생선회 식중독 유발에 주 원인균이 되는 Vibrio 속의 생육을 억제하였고, S. typhimurium과 E. coli O157:H7의 생육은 비교적 약하게 나타났다.은 고농도로 갈수록 심한 영향을 미쳤으며 저 농도 에서도 폭로시간이 길어짐에 따라 나타나는 SO$_2$의영향이

• Asian Pacific Journal of Cancer Prevention
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• 제14권6호
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• pp.3663-3667
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• 2013

Background: Multiple myeloma is a malignant silent incurable plasma cell disorder. The present study aimed to assessed the activation of the oxidative stress pathway in afected patients Materials and Methods: Advanced oxidation protein products (AOPPs), malondialdehyde (MDA), adenosine deaminase (ADA), total antioxidant capacity (TAC) levels, glutathione, ascorbic acid (vitamin C), ${\alpha}$-tocopherol (vitamin E) in addition to related enzymes glutathione peroxidase (GSH-Px), glutathione reductase (GSH-R) and superoxide dismutase (SOD) were analyzed in sixty patients with multiple myeloma before and after one month treatment with induction therapy. Results: The results of the study showed a significant elevation in AOPPs, MDA, ADA levels in patients with multiple myeloma before and after treatment in comparison to healthy control samples In contrast TAC glutathione, vitamin C and E, and the antioxidant enzymes levels were decreased significantly. On comparing samples of MM patients after treatment, there was significant increase of TAC glutathione, vitamin C and E, and the antioxidant enzymes in parallel with decreasing AOPPs, MDA and ADA levels in comparison with samples of patients before treatment. Conclusions: The results indicate oxidative stress and DNA damage activity increase in MM and are alleviated in response to therapy.

• Journal of Microbiology and Biotechnology
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• 제10권6호
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• pp.851-857
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• 2000

The activities of phase II and antioxidant enzymes in the liver, lung, kidney, stomach, and colon of mice were examined following intragastric application of polysaccharides extracted from soybeans fermented with either Agrocybe Cylindracea (AC) or Phellinus ignarius (PI). The intragastric application of the extracts to mice for 14 days significantly increased the activities of quinone reductase (QP) and glutathione S-transferase (GST) in the liver and kidney, glutathione (GSH) and superoxide dismutase (SOD) in the liver, kidney, lung, and stomach, and glutathione peroxidase (GSH-Px) in the liver, lung, and kidney. In general, the elevation of the phase II and antioxidant enzymes activities was more pronounced in the liver and kidney as compared to the lung, stomach, and colon. Accordingly, these finding suggest that polysaccharides extracted from soybeans fermented with A. cylindracea or P. igniarius have a cancer chemopreventive potential in various target organs.

• 대한한방내과학회지
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• 제32권2호
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• pp.243-258
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• 2011

Objectives : This study investigated the hypolipidemic and antioxidant effects of Curcuma radix using a rat model induced by poloxamer 407 injection. Methods : Serum lipid parameters and oxidative stress-associated biomarkers were determined. Additionally, hepatic cholesterol and triglyceride as well as lipid metabolism-associated gene expressions were observed in hepatic tissue. Results : 1. Curcuma radix ameliorated elevation of serum cholesterol, triglyceride, LDL-cholesterol, MDA, hepatic cholesterol level, and reduction of serum TAC, SOD, GSH, GSH-reductase level. 2. Curcuma radix augmented up-regulated ACAT gene expression. 3. Curcuma radix almost completely ameliorated down-regulated CYP-7A1 but up-regulated HMG-CoA gene expression. Conclusions : The hypolipidemic and antioxidant properties of Curcuma radix were evidenced. This study provides a scientific basis for the clinical application of Curcuma radix and development of hypolipidemics using this herb in the future.

• BMB Reports
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• 제42권5호
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• pp.277-280
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• 2009

We examined the effects of polysaccharides extracted from Asterina pectinifera on the activities of quinone reductase (QR), glutathione S-transferase (GST), ornithine decarboxylase (ODC), cyclooxygenase (COX)-2 and glutathione (GSH) levels in HT-29 human colon adenocarcinoma cells. We found that the polysaccharides extract induced QR activity in a dose-dependent manner over a concentration range of $20-60\;{\mu}g/ml$ and increased GST activity as much as 1.4-fold over controls. GSH levels were increased 1.3- and 1.5-fold with the extract at 40 and $60\;{\mu}g/ml$, respectively. The activity and protein expression of ODC in 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced colon cancer cells was inhibited by the extract. The polysaccharides suppressed TPA-induced prostaglandin (PG) production. These data indicate that polysaccharides from A. pectinifera increase phase II detoxification enzyme activity and inhibit ODC and COX-2 activities in HT-29 human colon adenocarcinoma cells. Consequently, this effect may contribute to the protective effect of polysaccharides from A. pectinifera against colon cancer.

• Preventive Nutrition and Food Science
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• 제8권2호
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• pp.158-161
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• 2003

This study investigated the effects of a ${\gamma}$-irradiated pork (0-30 kGy) diet on lipid peroxidation, cytochrome P-450 content, microsomal glucose 6-phosphatase (G-6-Pase) activity and antioxidative defense systems in diethylnitrosamine (DEN)-induced rat hepatocarcinogenesis. The body weight of rats fed irradiated diets did not change significantly. Liver weight was significantly increased by the administration of DEN, but not by irradiated diets at any dose level. There were no significant effects of gamma irradiation on the content of microsomal malondialdehyde (MDA), cytochrome P-450, or on the activity of G-6-Pase. However, with DEN treatment, cytochrome P-450 content was significantly increased while microsomal G-6-Pase activity was significantly decreased. The ${\gamma}$-irradiated diet supplement did not affect serum retinol or $\alpha$-tocopherol concentrations. However, it did cause a significant decrease in hepatic retinol at 30 kGy. With DEN treatment, hepatic retinol content was even more significantly (p<0.05) decreased compared to the non-irradiated control. The enzyme activities related to antioxidative defense systems, including glutathione peroxidase (GSH-Px), glutathione reductase (GSH-Rx) and glutathione S-transferase (GST) were not affected by gamma irradiation. Those results suggest that an irradiated pork diet up to 30 kGy may not cause a health hazard in experimental animals.

• Preventive Nutrition and Food Science
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• 제19권4호
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• pp.348-352
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• 2014

Black rice contains many biologically active compounds. The aim of this study was to investigate the protective effects of black rice extracts (whole grain extract, WGE and rice bran extract, RBE) on tert-butyl hydroperoxide (TBHP)-induced oxidative injury in HepG2 cells. Cellular reactive oxygen species (ROS), antioxidant enzyme activities, malondialdehyde (MDA) and glutathione (GSH) concentrations were evaluated as biomarkers of cellular oxidative status. Cells pretreated with 50 and $100{\mu}g/mL$ of WGE or RBE were more resistant to oxidative stress in a dose-dependent manner. The highest WGE and BRE concentrations enhanced GSH concentrations and modulated antioxidant enzyme activities (glutathione reductase, glutathione-S-transferase, catalase, and superoxide dismutase) compared to TBHP-treated cells. Cells treated with RBE showed higher protective effect compared to cells treated with WGE against oxidative insult. Black rice extracts attenuated oxidative insult by inhibiting cellular ROS and MDA increase and by modulating antioxidant enzyme activities in HepG2 cells.

• Applied Microscopy
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• 제33권1호
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• pp.59-78
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• 2003

본 연구는 카드뮴으로 유발된 생쥐 간중독에 대한 키토산올리고당의 효과를 알아보기 위하여 시도되었다. Mouse를 대상으로 카드뮴 (5.0 mg/kg; i.p.) 단독투여군(group Cd), 카드뮴과 키토산올리고당 (0.5% solution) 동시투여군 (group Cd+Chi) 그리고 키토산올리고당 1주일 전처치군 (group Chi7+Cd)으로 구분한 후 간손상 억제효과를 알아보기 위해 혈청중 효소활성도와 glutathione peroxidase (GSH-Px)의 활성도 그리고 glutathione reductase (GR)의 활성도를 비교측정하였다. 또한 간조직의 형태학적 손상을 확인하기 위해 조직학적 관찰을 실시하였다. 혈청 효소활성결과, AST, ALT 그리고 LDH의 활성도는 키토산올리고당을 처치한 Cd+Chi군과 Chi7+Cd군이 Cd군보다 감소되었다. 그러나 TP와 Alb의 활성도는 키토산올리고당을 처치한 Cd+Chi군과 Chi7+Cd군이 Cd군보다 증가되었다. GSH-Px활성은 Cd군에 비해 Cd+Chi군과 Chi7+Cd군이 현저하게 증가되었다. GR활성은 Cd군에 비해 Cd+Chi군과 Chi7+Cd군이 현저하게 감소하였다. 광학현미경적 관찰 결과, Cd군은 카드뮴 독성에 의한 간세포의 괴사가 관찰되었다. Cd+Chi군과 Chi7+Cd군은 정상군과 유사한 소견을 보였다. 이상과 같은 결과로, 키토산올리고당이 생쥐 간조직에 미치는 카드뮴의 독성을 감소시킴을 알 수 있었다.

• 생약학회지
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• 제34권4호통권135호
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• pp.297-302
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• 2003

Cnidii Rhizoma water extract (CRW) was tested for liver cancer chemopreventive potential by measuring the inhibition of phase I enzyme and benzo[a]pyrene-DNA adduct formation and induction of phase II detoxification enzymes. There was 17.0% inhibition in the activity of cytochrome P450 1A1 enzyme with the treatment of 150 mg/ml CRW. At concentration of 30 mg/ml CRW, the binding of $[^3H]B[a]P$ metablites to DNA of NCTC-clone 1469 cell was inhibited by 33.3%. CRW was potent inducer of quinone reductase (QR) and glutathione S-transferase (GST) activities in cultured murine hepatoma Hepalc1c7 cells. However, hepatic glutathione (GSH) level was not influenced by CRW. These findings suggest that CRW has chemopreventive potential of liver cancer by inhibiting cytochrome P450 1A1 activity and benzo[a]pyrene-DNA adduct formation and inducing QR and GST activities.

• Journal of Microbiology and Biotechnology
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• 제14권1호
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• pp.158-161
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• 2004

Scenedesmus spp. were cultured for 51 days in newly developed medium, KEP I (Kim and Ecopeace: initials of corresponding author and environmental company) made with Bacterio-Mineral-Water (3%, v/v) that had been bio-reacted with swine urine medium to 10% (v/v) Bold's Basal medium, and investigated for cancer chemopreventive potential by measuring the induction of quinone reductase (QR), glutathione S-transferase (GST), and reduced glutathione (GSH), and inhibition of cytochrome P450 (CYP) 1A1 activity. The activitives of QR and GST of Scenedesmus spp. cultured in KEP I medium were increased by 3.0-fold and 1.5-fold, respectively. However, Scenedesmus spp. cultured in control medium (CT) increased the activitives of QR and GST by 1.8-fold and 1.3-fold, respectively. Scenedesmus spp. in KEP I medium strongly inhibited CYP 1Al activity. These results show that Scenedesmus spp. in KEP I medium has cancer chemopreventive potential and may be a candidate for further development as a chemopreventive agent.