• 한국임상수의학회지
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• 제30권6호
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• pp.409-414
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• 2013

본 연구에서는 개에서 일반 개흉술을 통한 폐엽절제술과 흉강경을 이용한 폐엽절제술에서 심폐기능 및 생체 내 산화스트레스 상태에 미치는 영향을 비교 연구 하였다. 10 마리의 건강한 혼혈종을 사용하였고 일반 개흉술을 통한 폐엽절제술군 (group 1, n=5)과 흉강경을 이용한 폐엽절제술군 (group 2, n=5)으로 분류하였다. 심혈관계 측정 항목 및 superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx)의 농도를 측정하였다. 두 군에서 동맥혈액 가스의 유의적인 변화를 관찰 할 수 있었다. 총 마취 및 수술 시간은 개흉수술군에 비해 흉강경 폐엽 절제술군에서 유의하게 짧았다. 혈장 SOD와 CAT 수준의 증가, 그리고 GPX 수준의 감소는 수술 후 두 군 모두에서 관찰되었다. 두 군을 비교했을 때 GPX 수준에서 유의한 차이가 발견되었다. GPX 수준은 개흉 수술 군과 비교 흉강경 폐엽 절제술 군에서 유의하게 낮았다.

• Asian Pacific Journal of Cancer Prevention
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• 제13권11호
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• pp.5817-5821
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• 2012

Background/Aims: Glutathione S-transferase M1 (GSTM1) is a multifunctional enzyme that plays a critical role in the detoxification of varieties of carcinogenic metabolites. Many studies have been conducted to investigate the association between GSTM1 polymorphism and nasopharyngeal cancer (NPC) risk, but the findings among those studies are inconsistent. To assess this relationship more precisely, we performed a meta-analysis of all available studies on the subject. Methods: Case-control studies were identified by searching Pubmed, Embase, ISI Web of Science, and Wanfang databases through September 6, 2012. We used the pooled odds ratio (OR) with its corresponding 95% confidence interval (95%CI) to evaluate the association of GSTM1 polymorphism with NPC susceptibility. Subgroup analyses by pathological types, sex and smoking status were performed to further identify the association. Results: Overall, 11 published studies with 1,513 cases and 2,802 controls were finally included into this meta-analysis according to the inclusion criteria. Meta-analysis of total studies showed that the null genotype of GSTM1 was significantly associated with increased risk of NPC, when comparing with the non-null genotype (OR=1.51, 95%CI=1.33-1.72, POR<0.001). The association was still statistically significant in subgroup analysis of patients with nasopharyngeal squamous cell carcinoma (OR=1.73, 95%CI=1.24-2.42, POR=0.001). Males with the null genotype of GSTM1 were more likely to subject to NPC than females. In addition, the association between the null genotype of GSTM1 and NPC risk was strongest in individuals with exposure to smoking. Sensitivity analysis by sequential omission of any individual studies one at a time further demonstrated the significant association. Conclusions: The findings suggest that the null genotype of GSTM1 is a risk factor for NPC, and there is a gene-smoking interaction in this association.

• Advances in Traditional Medicine
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• 제10권1호
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• pp.13-20
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• 2010

The leaves of Madhuca (M.) indica J.f.Gmel. (Sapotaceae) have been used traditionally in folk medicine due to its astringent properties and are effective in treatment of eczema and snake bites. Methanolic extract of M. indica is rich in tannins and has been proven experimentally to possess antibacterial activity. The present study was undertaken to evaluate the anti-ulcer and antioxidant activity of M. indica in rats. The methanolic extract of leaves of M. indica was tested at various doses (75, 150 and 300 mg/kg, p.o.) for its effect on gastric secretion and gastric ulcers in pylorus-ligation and on ethanol- induced gastric mucosal injury in rats. The significant reduction in ulcer index in both the models along with an increase in the pH of the gastric fluid and mucin content of stomach, and the acid secretory parameters such as total acidity and volume of gastric fluid were also significantly reduced along with reduction in the pepsin activity in pylorusligated rats proved the anti-ulcer activity of M. indica. The increase in the levels of superoxide dismutase, catalase and reduced glutathione and decrease in lipid peroxidation in both the models proved the antioxidant activity of M. indica. Thus it can be concluded that M. indica possesses anti-ulcer activity, which can be attributed to its antioxidant mechanism of action.

• Journal of the Korean Data and Information Science Society
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• 제19권3호
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• pp.937-949
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• 2008

The purpose of this meta-analysis was to investigate the anti-hepatotoxic effect of ginseng in rats induced with CC14 or TCDD, the toxicities that cause liver damages. Primary studies were collected from the ScienceDirect database, the DBpia, and the KISS. The data on the effect factors in plasma and in enzyme are listed as many as possible: The effect factors were alanine transaminase(ALT), aspartate transaminase(AST), liver aminopyrine N-demethylase(AD), liver aniline hydroxylase(AH), liver 3,4-Methylenedioxyamphetamine(liver MDA), cytochrome P450(P450), serum alkaline phosphatase(ALP), serum lactate dehydrogenase(LDH), cytochrome b5(Cyto b5), glutathione reductase (GR), Liver glutathione S-transferase(GST), liver glutamyltransferase (GT), Liver($\gamma$-GCS), serum liver 3,4-Methylenedioxyamphetamine(serum MDA), serum sorbitol dehydrogenase(SDH), serum total protein(TP), and serum $\gamma$-glutamyltransferase($\gamma$-GT). In order to investigate the effect of ginseng, the standard mean difference(HG) between the group of rats induced with toxicity(RH) and the group of rats induced with ginseng(RHG) were combined, and the significance of HGs were tested. The combined HGs checked the biases caused by heterogeneity among studies and the publication biases. Then they were adjusted by using the random effect model and trim and fill method. Although the publication biases were assumed, among all plasma factors the HGs of ALT, AST, serum MDA, SDH, TP, and $\gamma$-GT were significant, and among all enzyme factors the HGs of liver MDA, Cyto b5, GR, GST, and GT were significant. The treatment with ginseng significantly affected the plasma and enzyme levels in rats induced with toxicity.

• Asian-Australasian Journal of Animal Sciences
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• 제30권2호
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• pp.254-261
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• 2017

Objective: The effects of aging and freezing/thawing sequence on color, physicochemical, and enzymatic characteristics of two beef muscles (Mm. gluteus medius, GM and biceps femoris, BF) were evaluated. Methods: Beef muscles at 3 d postmortem were assigned to four different combinations of aging and freezing/thawing sequence as follows; aging at $2^{\circ}C$ for 3 wk (A3, never-frozen control), freezing at $-28^{\circ}C$ for 2 wk then thawing (F2, frozen/thawed-only), aging at $2^{\circ}C$ for 3 wk, freezing at $-28^{\circ}C$ for 2 wk then thawing (A3F2), and freezing at $-28^{\circ}C$ for 2 wk, thawing then further aging at $2^{\circ}C$ for 3 wk (F2A3). Results: No significant interactions between different aging/freezing/thawing treatments and muscle type on all measurements were found. Postmortem aging, regardless of aging/freezing/thawing sequence, had no impact on color stability of frozen/thawed beef muscles (p<0.05). F2A3 resulted in higher purge loss than F2 and A3F2 treatments (p<0.05). A3F2 and F2A3 treatments resulted in lower shear force of beef muscles compared to F2 (p<0.05). Although there was no significant difference in glutathione peroxidase (GSH-Px) activity, F2A3 had the highest ${\beta}-N-acetyl$ glucominidase (BNAG) activity in purge, but the lowest BNAG activity in muscle (p<0.05). GM muscle exhibited higher total color changes and purge loss, and lower GSH-Px activity than BF muscle. Conclusion: The results from this present study indicate that different combinations of aging/freezing/thawing sequence would result in considerable impacts on meat quality attributes, particularly thaw/purge loss and tenderness. Developing a novel freezing strategy combined with postmortem aging will be beneficial for the food/meat industry to maximize its positive impacts on tenderness, while minimizing thaw/purge loss of frozen/thawed meat.

• Korean Journal of Acupuncture
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• 제24권2호
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• pp.141-161
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• 2007

Objectives & Methods : The purpose of this study is to investigate the anti-oxidative effects of electroacupuncture at Hyunjong (GB39) in rats. The author performed several experimental items including change of body weight, relative liver weight, level of albumin, total bilirubin, LDL-Cholesterol, LDH, GOT and GPT in blood serum, level of SOD, glutathione, catalase, NO and MDA in liver, histological change of liver. Results : 1. In the GB39-EA group, body weights were decreased in the early stages, but increased later on gradually. 2. In the GB39-EA group, the level of LDL-cholesterol was significantly decreased in comparison with that of the holder group, sham-EA group and GB39-NR group. 3. In the GB39-EAgroup, liver SOD, glutathione, catalase activity were increased, and NO density was decreased in comparison with those of the holder group, sham-EA group and GB39-NR group. MDA activity was significantly decreased in comparison with that of the holder group. 4. In the GB39-EA group, the density of liver tissue was more similarly maintained to the normal group in comparison with that of the holder group and sham-EA group. 5. The results of the GB39-EA group showed similar tendency with those of the GB39-EA group, but the effects were lower than those of the GB39-EA group. Conclusions : These results suppose that electroacupuncture at GB39 has an anti oxidative effect in human.

• 한국토양비료학회지
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• 제32권2호
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• pp.164-170
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• 1999

대두에서 한발과 담수와 같은 수분스트레스시 항산화제의 함량변화와 항산화 효소의 활성도 턴화를 확인한 결과는 다음과 같다. 대두에서 한발과 담수 수분스트레스 처리시 두 품종모두 수분 함량과 가용성 단백질 함량이 감소하는 미성숙 노화를 나타내었으며 스트레스의 회복시는 회복되었다. 수분스트레스시 APOX, GR의 효소활성은 감소하였고, 스트레스의 회복시 효소활성이 회복되었다. MDHAR 효소 활성은 기간별 처리시 품종별 차이는 있었지만 증가하는 경향을 나타내었고, 회복기를 주었을 때 조금 감소하였지만 일정수준을 유지하였다. DHAR의 효소활성은 기간별 처리시와 회복시 모두 증가하는 경향을 나타내었다. 3일간의 회복기를 주었을 때 효소활성변화는 스트레스시의 결과와 비슷하였으나, 처리기간별 수분 스트레스시 은하콩의 경우 MDHAR과 DHAR의 효소활성이 모두 증가하였다. 아스코브산의 함량온수분 스트레스 처리 기간별과 수분 스트레스 회복시 모두 MDHAR과 DHAR의 효소활성과 상호관련이 높았고, 환원형 글루타치온의 함량은 수분 스트레스 처리 기간별에서는 GR의 활성과 관련이 없었으나 수분 스트레스 회복기를 주었을 때 상호관련이 높게 나타났다.

• Parasites, Hosts and Diseases
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• 제58권3호
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• pp.287-299
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• 2020

Cystic echinococcosis (CE) is a zoonotic infection caused by Echinococcus granulosus larvae. It seriously affects the development of animal husbandry and endangers human health. Due to a poor understanding of the cystic fluid formation pathway, there is currently a lack of innovative methods for the prevention and treatment of CE. In this study, the protoscoleces (PSCs) in the encystation process were analyzed by high-throughput RNA sequencing. A total of 32,401 transcripts and 14,903 cDNAs revealed numbers of new genes and transcripts, stage-specific genes, and differently expressed genes. Genes encoding proteins involved in signaling pathways, such as putative G-protein coupled receptor, tyrosine kinases, and serine/threonine protein kinase, were predominantly up-regulated during the encystation process. Antioxidant enzymes included cytochrome c oxidase, thioredoxin glutathione, and glutathione peroxidase were a high expression level. Intriguingly, KEGG enrichment suggested that differentially up-regulated genes involved in the vasopressin-regulated water reabsorption metabolic pathway may play important roles in the transport of proteins, carbohydrates, and other substances. These results provide valuable information on the mechanism of cystic fluid production during the encystation process, and provide a basis for further studies on the molecular mechanisms of growth and development of PSCs.

• Journal of Korean Biological Nursing Science
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• 제22권2호
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• pp.139-147
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• 2020

Purpose: The purpose of this study was to determine the effects of different intensity of aerobic exercise for four weeks on cardiovascular risk factors, reactive oxygen, and antioxidant enzymes in old mice. Methods: Eighteen male C57BL/6 mice age 18 months were randomly classified into the control group (n= 6), the moderate intensity exercise group (n= 6), and the low intensity exercise group (n= 6). The training groups performed the aerobic exercise twice daily for 20 minutes, five days weekly for four weeks. Data were analyzed using descriptive statistics, analysis of variance (ANOVA), the Chi-square test, and the Tukey's test with the SPSSWIN 21.0 program. Results: In this study, among the risk factors of cardiovascular disease, blood sugar (BS) (p= .023) and total cholesterol (TC) (p= .001) were significantly different between the moderate intensity exercise group and the control group. Additionally, there were significant differences in the reactive oxygen malondialdehyde (MDA) (p= .001), the antioxidant enzymes superoxide dismutase (SOD) (p< .001) and glutathione reductase (GR) (p= .015) between the moderate intensity exercise group and the control group. Conclusion: This finding suggests that moderate intensity aerobic exercise promotes the activity of antioxidant enzymes and lowers cardiovascular risk factors in older mice.

• Nutrition Research and Practice
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• 제9권1호
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• pp.49-56
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• 2015

BACKGROUND/OBJECTIVES: Glutathione S-transferase (GST) forms a multigene family of phase II detoxification enzymes which are involved in the detoxification of reactive oxygen species. This study examines whether daily supplementation of kale juice can modulate blood pressure (BP), levels of lipid profiles, and blood glucose, and whether this modulation could be affected by the GSTM1 and GSTT1 polymorphisms. SUBJECTS/METHODS: 84 subclinical hypertensive patients showing systolic BP over 130 mmHg or diastolic BP over 85 mmHg received 300 ml/day of kale juice for 6 weeks, and blood samples were collected on 0-week and 6-week in order to evaluate plasma lipid profiles (total cholesterol, triglyceride, HDL-cholesterol, and LDL-cholesterol) and blood glucose. RESULTS: Systolic and diastolic blood pressure was significantly decreased in all patients regardless of their GSTM1 or GSTT1 polymorphisms after kale juice supplementation. Blood glucose level was decreased only in the GSTM1-present genotype, and plasma lipid profiles showed no difference in both the GSTM1-null and GSTM1-present genotypes. In the case of GSTT1, on the other hand, plasma HDL-C was increased and LDL-C was decreased only in the GSTT1-present type, while blood glucose was decreased only in the GSTT1-null genotype. CONCLUSIONS: These findings suggest that the supplementation of kale juice affected blood pressure, lipid profiles, and blood glucose in subclinical hypertensive patients depending on their GST genetic polymorphisms, and the improvement of lipid profiles was mainly greater in the GSTT1-present genotype and the decrease of blood glucose was greater in the GSTM1-present or GSTT1-null genotypes.