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TPP SOD-like 期刊文獻彙編

TPP SOD-like 期刊文獻彙編. 肝腎疾病. SARAI 日本サライ株式会社. Consumption of green tea protects rats from exerciseinduced oxidative stress in kidney and liver 攝取綠茶 TPP 可保護大鼠腎及肝在運動時誘發的氧化壓力. Helaine M. Alessio, Ann E. Hagermanb, Mary Romanello

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TPP SOD-like 期刊文獻彙編

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  1. TPP SOD-like 期刊文獻彙編 肝腎疾病 SARAI日本サライ株式会社

  2. Consumption of green tea protects rats from exerciseinduced oxidative stress in kidney and liver攝取綠茶TPP可保護大鼠腎及肝在運動時誘發的氧化壓力 Helaine M. Alessio, Ann E. Hagermanb, Mary Romanello • Department Physical Education, Health & Sport Studies, Miami University, Oxford, OH 45056, USA Nutrition Research 22 (2002) 1177–1188 根據研究顯示 在劇烈運動下產生許多自由基對人體健康造成負面的影響,尤其對於肝、腎的傷害尤其為大,本實驗藉由大鼠動物實驗,研究綠茶TPP飲食介入時,預防運動產生肝腎氧化傷害的預防效果

  3. 劇烈運動會導致血液流入腎臟的比例為原本1/5,因而減少血液中抗氧劇烈運動會導致血液流入腎臟的比例為原本1/5,因而減少血液中抗氧 化能力的下降,並使氧化廢棄物滯留在腎臟中 • 運動下會產生許多的自由基,以MDA做為指標,肝臟、腎臟的MDA大 幅提高,氧化壓力增加了290%,肝臟提高了81% • 以綠茶TPP進行飲食介入試驗中,肝腎中MDA的量則與控制組接近一 致無明顯變化 Levels of lipid peroxidation products in various tissues of animals sacrificed at rest or after aerobic exercise. Lipid peroxidation products were measured as malonaldehyde equivalents (MDA) TPP EGCG提供一種有效的抗氧化作用,本身及其副產物可以有效的清除自由基對腎臟造成的氧化傷害,提供在運動時對腎臟的保護作用

  4. Effect of Epigallocatechin Gallate on Renal Function in Cyclosporine-Induced NephrotoxicityEGCG在Cyclosporine(一種免疫抑制劑)誘發產生腎毒性時,對腎臟功能的效果 K.C. Mun • From the Dong San Kidney Institute and Chronic Disease Research Center, Keimyung University School of Medicine, Daegu, Korea Transplantation Proceedings, 36, 2133–2134 (2004) Cyclosporine(CsA) 所造成的腎毒性是一項嚴重的副作用,因為CsA的腎臟毒性,是由於CsA誘發產生許多的自由基。TPP EGCG顯示對於自由基所造成的腎臟毒性傷害具有保護的效果。利用大鼠進行動物實驗,可以了解TPP EGCG對腎臟自由基所造成傷害的影響

  5. 單獨的CsA作用下,會造成大鼠體內尿素氮(BUN)和血清肌酸單獨的CsA作用下,會造成大鼠體內尿素氮(BUN)和血清肌酸 酐(Creatinine)明顯的提高,CCr則會大幅的下降,猜測是由於 氧化壓力所造成的影響,在合併攝取TPP EGCG下,可以有效 的減少氧化造成的上述情形 TPP EGCG可以明顯的保護來自於CsA所誘發的腎毒 性,並且不影響CsA在血液中的濃度

  6. Green tea extract attenuates cyclosporine A-induced oxidative stress in rats茶多酚萃取物可降低藥物cyclosporine在大鼠中誘導的氧化壓力 A.M. Mohamadina, H.A. El-Beshbishy J Am Acad Dermatol • Tumor Marker Oncology Research Unit, Biochemistry Department, Cairo, Egypt Pharmacological Research 51 (2005) 51–57 Cyclosporine A(CsA) 是一種有效的免疫抑制劑,但在使用上會造成嚴重的腎毒性,本實驗利用大鼠研究TPP對於降低CsA所造成腎臟功能失調的效果 • 在合併使用CsA與TPP的實驗大鼠中,TPP可以有效的預防TBARS的產生 • TPP會減少大鼠腎臟的脂質過氧化現象 • TPP會明顯減少CsA所造成的腎臟功能失常: TPP依劑量的避免血清肌酸酐(Creatinine)的升高 TPP依劑量的減少尿素氮(BUN)的升高 TPP依劑量的減少血液中尿酸的增加 • TPP會提高血液中抗氧化酵素的活性(catalase、SOD、GPx、GR、GST)

  7. Effect of green tea extract on serum creatinine (A), blood urea nitrogen (B) and serum uric acid (C) in CsA-treated rats 實驗數據顯示,TPP可以有效降低CsA所造成的氧化壓力傷害達到保護腎臟機能的效果

  8. PREVENTIVE EFFECTS OF GREEN TEA ON RENAL STONE FORMATION AND THE ROLE OF OXIDATIVE STRESS IN NEPHROLITHIASIS綠茶對腎結石形成的預防效果及對於氧化壓力的作用 YASUNORI ITOH, TAKAHIRO YASUI, ATSUSHI OKADA • Department of Surgical Medicine, Nephro-urology, Nagoya City University Graduate School of Medical Sciences, Nagoya City, Aichi, Japan THE JOURNAL OF UROLOGYR Vol. 173, 271–275, January 2005 泌尿系統結石在流行病學、機轉、分類位置上與動脈粥狀硬化相似,且隨著年齡提高發生率,利用大鼠動物實驗研究綠茶TPP對於鈣泌尿結石形成的抑制與抗氧化效果 • 綠茶TPP會降低 尿液中草酸鹽類的分泌 • 綠茶TPP會降低 草酸鈣沉積的生成 • 綠茶TPP會提高 SOD的活性

  9. Urinary oxalate excretion in stone group was significantly higher than in control group at 7, 14 and 21 days.Urinary oxalate excretion was significantly lower in drink and powder groups at 14 and 21 days vs stone group 在腎臟組織中,綠茶TPP會降低草酸鈣沉積的形成,降低腎臟組織的細胞凋亡作用,並提高SOD的活性;也有研究指出綠茶TPP可以減低尿液中草酸的濃度,因此推測綠茶TPP具有預防腎結石的效果。

  10. Polyphenol (-)-Epigallocatechin Gallate Protection from Ischemia/Reperfusion-Induced Renal Injury in Normotensive and Hypertensive Rats在血壓正常與高血壓大鼠中,多酚類EGCG可避免缺血再灌流所造成的腎臟傷害 Y.H. Jang, Y.C. Lee, N.H. Park, H.Y. Shin, K.C. Mun, M.S. • From the Institute for Medical Science, Keimyung University, Dongsan Medical Center, Daegu, South Korea. Transplantation Proceedings, 38, 2190–2194 (2006) 利用正常血壓的大鼠(WKR)與高血壓(SHR)的大鼠腎臟做比較分析,綠茶TPP均可以有效的避免缺血再灌流所造成的腎臟傷害,在缺血再灌流下,血液中尿素氮(BUN)及血清肌酸酐(sCr)增加、血清肌酸酐(sCr)的清除率下降,均是腎臟損害的指標,經研究綠茶TPP有以下的效果 • 綠茶TPP可以使血液中尿素氮(BUN)濃度下降 • 綠茶TPP可以使血液中血清肌酸酐(sCr)濃度下降 • 綠茶TPP可使MDA明顯的下降,具清除自由基的優越能力 • SHR大鼠腎臟缺血再灌流的情形下,組織的壞死可以藉由綠茶 TPP有效的回復

  11. Effect of EGCG (10 mg/kg, IV) on blood urea nitrogen(BUN), serum creatinine, and creatinine clearance in rats exposed to renal I/R. 缺血再灌流所造成的腎臟傷害在高血壓模式動物中更顯嚴重,尤其在腎臟功能、脂質過氧化、組織傷害上,TPP EGCG可以明顯的改善腎臟機能不全並促進腎臟組織的再生

  12. Protection of Rabbit Kidney from Ischemia/Reperfusion Injury by Green Tea Polyphenol Pretreatment綠茶多酚的前處裡可保護兔子腎臟缺血再灌流的傷害 Dong Kyun Rah, Dong-Wook Han, Hyun Sook Baek • Department of Plastic and Reconstructive Surgery, Yonsei University College of Medicine, Seoul, Korea Arch Pharm Res Vol 30, No 11, 1447-1454, 2007 活性氧族群(ROS)是缺血再灌流後造成腎臟損害的原因,利用動物實驗可以驗證綠茶TPP對於腎臟缺血再灌流傷害具有保護腎臟細胞的作用。以綠茶TPP對缺血再灌流的兔子進行前處理,綠茶TPP具有以下的保護功能 • 綠茶TPP明顯降低缺血再灌流對腎臟的傷害 • 綠茶TPP可以使血液中尿素氮濃度下降 • 綠茶TPP可以使血液中肌酸酐濃度下降 • 組織學分析下,TPP可以降低缺血再灌流下腎臟近曲小管的壞死 • 綠茶TPP會降低因為缺血再灌流造成的壞死區域,達到保護的效果

  13. The tubular injury score of vehicle-treated and GTP-treated kidneys in rabbits after IR. The bars represent the mean ± SD. 以TPP處理缺血再灌流的動物中發現,TPP可以有效的降低腎臟的異變,提高腎臟的機能,以免疫組織分析方式也證實相同的結果,綠茶TPP在預防腎臟疾病及移植具有醫療上的價值

  14. Green tea polyphenol epigallocatechin-3-gallate inhibits platelet-derived growth factor-induced proliferation of human hepatic stellate cell line LI90綠茶多酚EGCG抑制PDGF(血小板源生長因子)所誘導的人類肝星型細胞株IL90增生 Ryuichiro Sakata, Takato Ueno, Toru Nakamura • Research Center for Innovative Cancer Therapy, Second Department of Medicine, Kurume University School of Medicine, 67 Asahi-machi, Kurume 830-0011, Japan Journal of Hepatology 40 (2004) 52–59 綠茶TPP已知具有抗皮膚及動脈組織纖維化的特性,而在慢性肝臟疾病中的肝臟纖維化過程中,與肝臟星型細胞(HSC)的增生具有很強的關聯性,TPP EGCG顯示對於此增生作用具有抑制效果 • TPP EGCG會抑制PDGF-BB誘導的肝臟星型細胞增生 • TPP EGCG會抑制膠原蛋白α(1)與(IV)的mRNA表現 • TPP EGCG會降低PDGF受體的自磷酸化作用 • TPP EGCG會以非競爭性抑制PDGF-BB與其受體的結合 • TPP EGCG會使肝臟星型細胞停留在G0/G1期

  15. Effect of epigallocatechin-3-gallate (EGCG) on cell proliferation induced by PDGF-BB in LI90 cells. Stimulation of LI90 with 10 ng/ml PDGF-BB caused an increase of BrdU incorporation. EGCG resulted in a dose-dependent inhibition of the PDGF-BB-induced BrdU incorporation. 透過多重的機制TPP EGCG可以抑制肝臟星型細胞的增生,進一步達到預防肝臟纖維化的效果

  16. GREEN TEA POLYPHENOL EPIGALLOCATECHIN-3-GALLATE PROTECTS HepG2 CELLS AGAINST CYP2E1-DEPENDENT TOXICITY綠茶多酚EGCG保護人類肝癌細胞株(HepG2)對抗依賴CYP2E1(Cytochrome P450 2E1)所造成之毒性 • JOSE M. JIMENEZ-LOPEZ and ARTHUR I. CEDERBAUM • Department of Pharmacology and Biological Chemistry, Mount Sinai School of Medicine, New York, NY, USA Free Radical Biology & Medicine, Vol. 36, No. 3, pp. 359 – 370, 2004 長期的酒精攝取會導致肝臟的氧化傷害,細胞色素P450 2E1(CYP2E1)的誘導作用是酒精造成的氧化壓力的其中一項途徑;酒精灌胃處理下,鐵及多元不飽和脂肪酸的累積會明顯的造成酒精肝毒性;在過表現CYP2E1(E47細胞中)CYPE1-介導細胞毒性中,研究顯示TPP EGCG可以避免酒精誘導的肝臟傷害 • TPP EGCG可以防止E47細胞避免肝毒性 • TPP EGCG可以防止因鐵及花生四烯酸造成細胞存活的下降 TPP EGCG預防肝細胞毒性與其降低氧化傷害有關 • 降低活性氧族群的產生 • 減少脂質的過氧化 • 維持細胞的GSH含量

  17. E47 cells were preincubated with medium containing 15 AM AA for 14 h. The medium was then replaced and the cells were incubated in the absence or presence of 10 or 50 AM EGCG for 3 h, before adding 25 AM Fe-NTA. After 3 h of incubation maintaining the specific treatments, the cells were harvested by scraping and assayed for the production of MDA using the TBARS assay, as described under Experimental Procedures. Results are expressed as means F SEM and are from a representative experiment repeated twice and conducted in triplicate. 飲食中攝取TPP EGCG可以保護並預防許多因CYP2E1產生的肝毒性,達到預防肝臟病變的效果

  18. 綠茶多酚(TPP)對實驗性酒精性肝損傷大鼠的治療作用綠茶多酚(TPP)對實驗性酒精性肝損傷大鼠的治療作用 世界華人消化雜誌 2006年 1月 8日 • 周曉蓉 袁光金 • 武漢大學人民醫院感染科 研究綠茶多酚(TPP)及表沒食子兒茶素沒食子酸酯(EGCG)對大鼠酒精性肝損傷的治療作用, 並探討其作用機制. 內毒素是酒精性肝損傷的重要致病機制, 已知實驗性及人酒精性肝損傷的內毒素濃度增加, 內毒素通過與存在於kupffer細胞膜上的受體CD14結合而啟動Kupffer細胞, 從而促發信號級聯反應, 合成和釋放大量炎症介質,從而導致肝損傷. • TPP可以預防肝細胞壞死現象 • TPP可以降低內毒素血症 • TPP可以抑制Kupffer細胞活性 • TPP會抑制促炎細胞因子的表達與分泌

  19. Green tea extract protects against early alcohol induced liver injury in rats 實驗證實TPP EGCG可以有效減輕酒精性肝損傷

  20. A Green Tea Catechin Extract Upregulates the Hepatic Low-Density Lipoprotein Receptor in Rats在大鼠中,綠茶兒茶素萃取物會正調節肝臟低密度脂蛋白受體 Christina A. Bursill . Paul D. Roach • Heart Research Institute, University of Sydney, 114 Pyrmont Bridge Road, Camperdown, NSW 2050, Australia Lipids (2007) 42:621–627 在許多流行病學及動物介入試驗中均顯示,綠茶萃取物(TPP)具有降低膽固醇血的特性,其中正調節低密度膽固醇脂蛋白受體是其中一項重要的作用機制,此實驗研究了綠茶萃取物(TPP)是否可以正調節LDL受體 • TPP會提高血液中HDL的濃度41% • TPP會有效的提高LDL受體的結合活性(2.7倍) • TPP會降低LDL的濃度(2.4倍) • TPP會明顯降低膽固醇的吸收(24%),但不影響膽固醇的合成

  21. Green tea extract upregulates the LDL receptor. Twenty-four Sprague Dawley rats were divided into four treatment groups of six rats each. The different treatment groups were fed a crude catechin extract for 12 days at concentrations of either 0, 0.5, 1.0, 2.0% (w/w) mixed in with normal rat chow and 0.25% cholesterol. 依數據顯示,綜合以上諸多綠茶萃取物(TPP)特性,TPP可有效的使肝臟中膽固醇由肝臟細胞釋放到血液中的速率變高,而降低肝臟細胞中的膽固醇

  22. Green-tea Polyphenols Downregulate Cyclooxygenase and Bcl-2 Activity in Acetaminophen-induced Hepatotoxicity綠茶多酚會負調節acetaminophen 誘導肝毒性中環氧化酵素與Bcl-2的活性 Helieh S. Oz A Theresa S. Chen • Center for Oral Health Research, MN310 College of Dentistry, and Department of Internal Medicine, School of Medicine, University of Kentucky Medical Center, 800 Rose Street, Lexington, KY 40536, USA Dig Dis Sci ,5 March 2008 Acetaminophen (APAP)(常見的止痛退燒劑EX:普拿疼成分)會以多工途徑誘發肝毒性,包括了誘發細胞凋亡、環氧化酶(Cox-2)的生成、Bcl-2的生成、反應性代謝物的釋放、GSH的減少。 • 攝取綠茶TPP會正常化APAP所誘發的Cox-2表現與Bcl-2活化現象 • 綠茶TPP會增進肝臟的組織病理狀態、減少ALT(alanine aminotransferase)活性 • 綠茶TPP會減少rGSH的耗損

  23. 飲食中攝取綠茶TPP對於APAP所造成的肝臟傷害提供一定的保護效果

  24. Effect of tea polyphenols on hepatic fibrosis in rats with alcoholic liver disease茶多酚對於帶有酒精性肝臟疾病大鼠肝臟纖維化的效果 You-Ming Li, Xing Guo Zhang • Zhejiang University School of Medicine, Mangzhou, China Hepatobiliary Pancreat Dis Int 2004; 3: 577-579 當作一種抗氧化劑的角色而言,茶多酚(TPP)可能具有抗纖維化的效果,以具有酒精性肝疾病的大鼠進行動物實驗,來了解TPP對於肝臟纖維化的影響及其相關的機制 研究中發現: • 同時攝食TPP與酒精的老鼠經過24週後,肝臟纖維化的程度遠低於單 獨攝食酒精的老鼠 • TPP會提高血液中的抗氧化能力,增加血液中的SOD濃度、增加血液 中GSH的濃度、降低MDA的濃度 • TPP會降低血液中內毒素的濃度(註:內毒素在肝臟纖維化過程中扮演重 要角色,且與肝臟細胞受損直接或間接相關)

  25. Modulation of Cholesterol Metabolism by the Green Tea Polyphenol (-)-Epigallocatechin Gallate in Cultured Human Liver (HepG2) Cells綠茶兒茶素EGCG在培養的人類肝臟(HepG2)細胞中對於膽固醇代謝作用的調節 CHRISTINA A. BURSILL AND PAUL D. ROACH • Nutritional Sciences, School of Applied Sciences, The University of Newcastle, P.O. Box 127 Ourimbah, NSW 2258, Australia, Wellcome Trust Centre of Human Genetics, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, United Kingdom. J. Agric. Food Chem. 2006, 54, 1621-1626 以人類HepG2細胞進行體外實驗,了解TPP EGCG對於人體膽固醇代謝上的作用 • TPP EGCG提高LDL受體的結合活性達3倍,增加LDL受體表現量達2.5倍 • TPP EGCG會促使SREBP-1 SREBP-1(sterol regulatory element binding protein-1)轉換成活性態(+56%),並降低細胞膽固醇的濃度(-28%) • 在50μM濃度下,TPP EGCG會明顯降低細胞膽固醇的合成 • 在200μM濃度下,TPP EGCG會提高膽固醇自細胞的排出

  26. Comparison of purified catechins from green tea and a green tea extract in terms of LDL receptor binding activity. HepG2 cells were incubated for 24 h with 100μM purified catechins or 100μM EGCG equivalent of a green tea extract in 10 mL of medium. The LDL receptor binding activity was measured as the calcium-dependent binding of LDL gold to the intact cells. TPP EGCG 經實驗證實在對於人類肝臟細胞HEpG2細胞具有調節膽固醇代謝的功能,LDL受體的正調節,提供了TPP EGCG對於低膽固醇血效益的機制,因為TPP EGCG會提高SREBP-1(sterol regulatory element binding protein-1)轉錄因子的活性。TPP EGCG在較低濃度下會抑制膽固醇的生合成,在高濃度下更會促使膽固醇自細胞排出,因此TPP EGCG對於降低血液中膽固醇及動脈粥狀硬化是一種具有潛力的治療劑

  27. Renoprotective effects of tea catechin in streptozotocin induced diabetic rats兒茶素TPP在streptozotoxin誘發的糖尿病大鼠中具有保護腎臟的功能 Michiyo Hase ‧ Tetsuya Babazono • Division of Nephrology and Hypertension, Diabetes Center, Tokyo Women’s Medial University School of Medicine, Shinjukuku, 162-8666 Tokyo, Japan Int Urol Nephrol (2006) 38:693–699 最近研究指出,在部分腎臟切除的大鼠中,兒茶素TPP可抑制腎絲球的增生及避免腎絲球硬化症的發生。本研究即在於了解TPP對於streptozotocin誘發糖尿病大鼠是否有保護腎臟及避免腎臟功能缺失的效果 測試以24小時的白蛋白排泄量(AER)、血液中脂質過氧化物以硫巴比妥酸值(TBARS)與血壓為指標,並同時進行腎絲球體積及間質纖維化的比較

  28. 血液中葡萄糖及HbA1C(糖化紅血球)在兒茶素TPP作用下,明顯的降低血液中葡萄糖及HbA1C(糖化紅血球)在兒茶素TPP作用下,明顯的降低 • 兒茶素TPP 對於II型糖尿病腎病變常見的白蛋白尿(albuminuria)現象,可 有效的降低(48.7%) • 平均腎絲球的體積,攝取兒茶素TPP下可以減少37.0%的惡化 • 兒茶素TPP實驗組中,不會產生腎臟的間質性纖維化現象 • 血液中脂質過氧化現象與血壓升高可以得到良好的控制 Effects of catechin on glomerular volume (left panel) and interstitial fibrosis score (right panel) in non-diabetic and diabetic rat groups with and without catechin treatment at 12 weeks. 實驗數據得知,在糖尿病的大鼠中,口服兒茶素TPP可以降低白蛋白尿的現象,並使腎臟的功能正常化,因此TPP具有保護糖尿病腎臟的效果。

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