Journals / Erciyes Tıp Dergisi / 2008 / Cilt: 30 - Sayı: 1

L-NAME uygulanmış overektomize sıçanlarda östrojenin, kan basıncı ve kalp hızı yanıtları üzerine etkisi

Effects of estrogen on blood pressure and heart rate responses to L-NAME treatment in ovariectomized rats

Pages
1–7
Publication Date
2022-10-17
DOI
—
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Mean, systolic and diastolic arterial blood pressures increased significantly in the ovariectomized plus estradiol and L- NAME tretment group relative to ovariectomized plus L-NAME treatment group.Conclusion: This study has showed that estradiol does not play a significant role in modulating the blood pressure of female rats

📌 3 Key Takeaways

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Objective & Hypothesis:Purpose: This study was to evaluate whether the effect of estradiol on the blood pressure and heart rate responses to acute inhibition of nitric oxide synthase in female Wistar rats.
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Key Findings & Data:Material and Methods: Rats were divided into five groups consisting of seven rats each; 1.
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Conclusion & Impact:Mean, systolic and diastolic arterial blood pressures increased significantly in the ovariectomized plus estradiol and L- NAME tretment group relative to ovariectomized plus L-NAME treatment group.Conclusion: This study has showed that estradiol does not play a significant role in modulating the blood pressure of female rats
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Purpose: This study was to evaluate whether the effect of estradiol on the blood pressure and heart rate responses to acute inhibition of nitric oxide synthase in female Wistar rats. Material and Methods: Rats were divided into five groups consisting of seven rats each; 1. Sham-operated age-control (Sham); 2. Ovariectomized (O); 3. Ovariectomized plus estradiol (OE); 4. Ovariectomized plus L-nitro-arginine methyl ester, an inhibitor of nitric oxide synthase (OL-NAME);5. Ovariectomized plus estradiol and nitric oxide synthase (OEL-NAME).Results: Mean, systolic and diastolic arterial blood pressures in sham, ovariectomized and ovariectomized plus estradiol were at close levels to each other. Mean, systolic and diastolic arterial blood pressures increased significantly in the ovariectomized plus estradiol and L- NAME tretment group relative to ovariectomized plus L-NAME treatment group.Conclusion: This study has showed that estradiol does not play a significant role in modulating the blood pressure of female rats

Özet

Amaç: Bu çalışmada nitrik oksit inhibisyonu yapılmış dişi Wistar sıçanlarda östrodiolün kan basıncı ve kalp hızına etkisinin olup olmadığının araştırılması amaçlanmıştır. Gereç ve Yöntem: Sıçanlar her grubta yedi hayvan olacak şekilde, aynı yaş grubu kontrol (Sham), ovarektomize (O) , ovarektomize ve östradiol verilen (OE), ovarektomize ve nitrik oksit sentaz enzim inhibitörü L-nitro-arjinin metil ester verilen (O L-NAME), ovarektomize, östradiol ve L-nitro-arjinin metil ester verilen grup olmak üzere (OE L-NAME) beş gruba ayrılmıştır.Bulgular: Sistolik, diyastolik ve ortalama arteryal kan basınçları sham, sadece ovarektomize ve ovarektomize edilip östradiol verilen gruplarda birbirine yakın değerlerde bulunmuştur. Ortalama, sistolik ve diyastolik arteryal basınçlar ovarektomize edilip östradiol ve L-NAME verilen grupta, ovarektomize ve L-NAME verilen grup değerlerinden istatistiksel anlamda yüksek bulunmuştur.Sonuç: Dişi sıçanlarda yapılan bu çalışmada östrojenin kan basıncı üzerine önemli bir etkisinin olmadığı belirlenmiştir.

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Cite This Article

GÜNEŞ, I., SÜER, C., ÖZYAZGAN, İ., DURSUN, N. (2022). L-NAME uygulanmış overektomize sıçanlarda östrojenin, kan basıncı ve kalp hızı yanıtları üzerine etkisi. Erciyes Tıp Dergisi, Cilt: 30 - Sayı: 1, 1–7. https://ajindex.com/articles/502681

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References (15)

  1. The writing group for the PEPI Trial. Effects of estrogen or estrogen/progestin regimens on heart disease risk factors in postmenopausal women. The postmenopausal estrogen/progestin interventions (PEPI) trial. JAMA 1995
  2. Grady D, Rubin SM, Petitti DB, et al. Hormone therapy to prevent disease and prolong life in postmenopausal women. Ann Intern Med 1992
  3. Florian M, Lu Y, Angle M, Magder S. Estrogen induced changes in Akt-dependent activation of endothelial nitric oxide synthase and vasodilation. Steroids 2004
  4. 645 4. Mikkola TS, Clarkson TB. Estrogen replacement therapy, atherosclerosis, and vascular function. Cardiovasc Res 2002
  5. Hayashi T, Yamada K, Esaki M, et al. Estrogen increase endothelial nitric oxide by a receptor-mediated system. Biochem Biophys Res Comm 1995
  6. Panza JA. Endothelial dysfunction in essential hypertension. Clin Cardiol 1997
  7. 20 Suppl 2:1126-1133. 7. Das UN. Free radicals cytokines and nitric oxide in cardiac failure and myocardial infarction. Mol Cell Biochem 2000
  8. Sagar S, Kallo IJ, Kaul N, Ganguly NK, Sharma BK. Oxygen free radicals in essential hypertension. Mol Cell Biochem 1992
  9. Tang M, Abplanalp W, Ayres S, Subbiah MT. Superior and distinct antioxidant effects of selected estrogen metabolites on lipid peroxidation. Metabolism 1996
  10. Tranquilli AL, Mazzanti L, Cugini AM, Cester N, Garzetti GG, Romanini C. Transdermal estradiol and medroxiprogesterone acetate in hormone replacement therapy are both antioxidants. Gynecol Endocrinol 1995
  11. Hernandez I, Delgado JL, Diaz J, et al. 17 Beta estradiol prevents oxidative stress and decreases blood pressure in ovariectomized rats. Am J Physiol Regul Integr Comp Physiol 2000
  12. R 1599-1605. 12. Tribulova N, Okruhlicova L, Bernatova I, Pechanova O. Chronic disturbances in NO production results in histochemical and subcellular alterations of the heart. Physiol Res 2000
  13. [No author listed]. JAMA patient page. Benefits of physical activity for the heart. JAMA 2001
  14. Rossouw JE, Anderson GL, Prentice RL, et al, Writing Group for the Women’s Health Initiative Investigators. Risks and benefits of estrogen plus progestin in healthy postmenopausal women: Principal results from the women’s health initiative randomized controlled trial. JAMA 2002
  15. Grodstein F, Stampfer MJ, Colditz GA, et al. Postmenopausal hormone th