Journals / The Anatolian Journal of Cardiology / 2015 / Cilt: 15 - Sayı: 6

5/6 nefrektomi modelinde ?-lipoik asidin aort hasarı ve hipertansiyon üzerine etkilerinin incelenmesi

The effects of a-lipoic acid on aortic injury and hypertension in the rat remnant kidney (5/6 nephrectomy) model

Pages
443–449
DOI
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⚡ TL;DR(Too Long; Didn't Read)

The expression of type I angiotensin receptor, vascular endothelial growth factor, alpha-smooth muscle actin in the 5/6 nephrectomy+lipoic acid group was decreased compared to the 5/6 nephrectomy group.Conclusion: In the present study, we found that a-lipoic acid could be a favorable agent for the target organ effects of secondary hypertension

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: The present study was designed to investigate the effects of a-lipoic acid on the abdominal aorta and hypertension in a remnant kidney model histomorphometrically, immunohistochemically, and ultrastructurally.Methods: We surgically reduced the renal tissue mass to 5/6 by applying a remnant kidney model.
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Key Findings & Data:The rats were divided into 4 groups: Group 1- control group, Group 2- lipoic acid group, Group 3- 5/6 nephrectomy group, and Group IV: 5/6 nephrectomy+lipoic acid-treated group.
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Conclusion & Impact:The expression of type I angiotensin receptor, vascular endothelial growth factor, alpha-smooth muscle actin in the 5/6 nephrectomy+lipoic acid group was decreased compared to the 5/6 nephrectomy group.Conclusion: In the present study, we found that a-lipoic acid could be a favorable agent for the target organ effects of secondary hypertension
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: The present study was designed to investigate the effects of a-lipoic acid on the abdominal aorta and hypertension in a remnant kidney model histomorphometrically, immunohistochemically, and ultrastructurally.Methods: We surgically reduced the renal tissue mass to 5/6 by applying a remnant kidney model. The rats were divided into 4 groups: Group 1- control group, Group 2- lipoic acid group, Group 3- 5/6 nephrectomy group, and Group IV: 5/6 nephrectomy+lipoic acid-treated group. Lipoic acid solution 100 mg/kg was administered by oral gavage for 8 weeks to Groups II and IV. At the end of the experiment, systemic mean blood pressure was monitored. Then, aortic tissues were removed and fixed. After routine histological procedures, tissue sections were examined histochemically, immunohistochemically (type I angiotensin receptor, vascular endothelial growth factor, alpha-smooth muscle actin), and ultrastructurally.Results: The blood pressure measurements in 5/6 nephrectomy group were significantly higher compared to other groups. In the 5/6 nephrectomy+lipoic acid group, measured blood pressure values and tunica media thickness were significantly lower than in the 5/6 nephrectomy group. In the 5/6 nephrectomy+lipoic acid group, decreased aortic wall thickness, regularity in the structure of elastic fibrils, and more organized elastic lamellae were seen. The expression of type I angiotensin receptor, vascular endothelial growth factor, alpha-smooth muscle actin in the 5/6 nephrectomy+lipoic acid group was decreased compared to the 5/6 nephrectomy group.Conclusion: In the present study, we found that a-lipoic acid could be a favorable agent for the target organ effects of secondary hypertension

Özet

Amaç: Bu çalışma sıçan 5/6 nefrektomi modelinde oluşan hipertansiyona ve abdominal aortta meydana gelen değişikliklere ?-lipoik asidin etkilerini histomorfometrik, immünohistokimyasal ve ince yapı düzeyinde araştırmak için planlanmıştır. Yöntemler: Bu araştırmada cerrahi 5/6 nefrektomi modeli kullanılarak böbrek dokusu azaltılmıştır. Nefrektomili denekler 4 gruba ayrılmıştır; Grup 1 - kontrol grubu, Grup 2 - Lipoik asit grubu, Grup 3- 5/6 Nefrektomi grubu, Grup 4- 5/6 Nefrektomi + Lipoik asit grubu. Lipoik asit çözeltisi 100 mg/kg, 8 hafta boyunca oral gavaj yoluyla Grup 2 ve 4'e uygulanmıştır. Deneyin sonunda, sağ karotid arterden ortalama sistemik kan basıncı monitörize edilmiştir. Daha sonra, aort dokuları çıkarılarak tespit edilmiş ve rutin histolojik prosedürler uygulanarak doku kesitleri histokimyasal, immunohistokimyasal (tip-I anjiyotensin reseptörü, vasküler endoteliyal büyüme fakörü, alfa-düz kas aktini) ve ultrastrüktürel olarak incelenmiştir. Bulgular: Çalışmamızda, 5/6 nefrektomi grubunda karotis arterden ölçülen kan basıncı değerlerinin diğer 3 gruba göre anlamlı derecede yüksek olduğunu bulduk. 5/6 Nefrektomi+Lipoik asit grubunda kan basıncı değerleri ve tunika media kalınlığı 5/6 Nefrektomi grubuna göre anlamlı derecede düşüktü. 5/6 Nefrektomi+Lipoik asit grubunda aort duvar kalınlığında azalma ayrıca elastik fibrillerin daha düzenli ve daha organize olduğunu gözledik. 5/6 nefrektomi+Lipoik asit grubunda tip-I anjiotensin reseptörü, vasküler endoteliyal büyüme faktörü ve alfa-düz kas aktini antikorlarının 5/6 nefrektomi grubuna kıyasla azaldığını bulduk. Sonuç: Bu çalışmadan elde ettiğimiz veriler ışığında, ?-lipoik asit'in ikincil hipertansiyonun hedef organ etkileri için olumlu bir ajan olabileceğini düşünmekteyiz.

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Cite This Article

ERGÜR, B. U., MIÇILI, S. C., YILMAZ, O., AKOKAY, P. (2015). 5/6 nefrektomi modelinde ?-lipoik asidin aort hasarı ve hipertansiyon üzerine etkilerinin incelenmesi. The Anatolian Journal of Cardiology, Cilt: 15 - Sayı: 6, 443–449. https://ajindex.com/articles/364090

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References (2)

  1. Badyal DK, Lata H, Dadhich AP. Animal models of hypertension and effects of drugs. Indian J Pharmacol 2003; 35: 349-62
  2. Lerman LO, Chade AR, Sica V, Napoli C. Animal models of hypertension: an overview. J Lab Clin Med 2005; 146: 160-73. [CrossRef] 3. Mıcılı SÇ, Ergür BU, Özoğul C, Sarıoğlu S, Bağrıyanık HA, Tuğyan K, et al. Effects of lipoic acid in an experimentally induced hypertensive and diabetic rat model. Clin Exp Hypertens 2013; 35: 373-81. [CrossRef] 4. Sparks MA, Parsons KK, Stegbauer J, Gürley SB, VivekanandanGiri A, Fortner CN, et al. Angiotension 2 type 1a receptors in vascular smooth muscle cells do not influence aortic remodeling in hypertension. Hypertension 2011; 57: 577-85. [CrossRef] 5. Cohuet G, Struijker-Boudier H. Mechanisms of target organ damage caused by hypertension: therapeutic potential. Pharmacol Ther 2006; 111: 81-98. [CrossRef] 6. Zhao Q, Ishibashi M, Hiasa K, Tan C, Takeshita A, Egashira K. Essential role of vascular endothelial growth factor in angiotensin II-induced vascular inflammation and remodeling. Hypertension 2004; 44: 264-70. [CrossRef] 7. Mıcılı SC, Göker A, Sayın O, Akokay P, Ergür BU. The effect of lipoic acid on wound healing in a full thickness uterine injury model in rats. J Mol Hist 2013; 44: 339-45. [CrossRef] 8. Packer L, Witt EH, Tritschler HJ. Alpha-lipoic acid as a biological antioxidant. Free Radic Biol Med 1995; 19: 227-50. [CrossRef] 9. Shay KP, Moreau RF, Smith EJ, Smith AR, Hagen TM. Alpha-lipoic acid as a dietary supplement: molecular mechanisms and therapeutic potential. Biochim Biophys Acta 2009; 1790: 1149-60. [CrossRef] 10. Güray M, Sarıoğlu S, Türkmen M, Yılmaz O, Ellidokuz H, Gelal A, et al. Cyclosporine A toxicity in association with reduced renal mass. Transplant Proc 2003; 35: 3128-33. [CrossRef] 11. Bal E, Murat N, Demir Ö, Soner BC, Can E, Gidener S, et al. Restraint stress impairs erectile responses in rats. Tohoku J Exp Med 2009; 217: 239-42. [CrossRef] 12. Tüzün F, Gençpınar P, Özbal S, Dilek M, Ergür BU, Duman N, et al. Neuroprotective effect of neotrofin in a neonatal rat model of periventricular leukomalacia. Neurosci Lett 2012; 520: 6-10. [CrossRef] 13. Kosaka S, Pelisch N, Rahman M, Nakano D, Hitomi H, Kobori H, et al. Effects of angiotensin II at1-receptor blockade on high fat diet- induced vascular oxidative stress and endothelial dysfunction in Dahl salt-sensitive rats. J Pharmacol Sci 2013; 121: 95-102. [CrossRef] 14. Yu X, Liu H, Zou J, Zhu J, Xu X, Ding X. Oxidative s