Journals / Turkish Journal of Gastroenterology / 2010 / Cilt: 21 - Sayı: 4

Hipertansiyon ve overektominin sıçan hepatositlerine etkisi. Amlodipin ve lasidipin sıçan hepatositlerini korur mu? (Histolojik ve stereolojik çalışma)

Effects of hypertension and ovariectomy on rat hepatocytes. Are amlodipine and lacidipine protective? (A stereological and histological study)

Pages
387–395
DOI
—
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⚡ TL;DR(Too Long; Didn't Read)

Conclusions: Our experimental results show that both hypertension and the postmenopausal period have negative effects on the number of hepatocytes and histological structure of the liver.

📌 3 Key Takeaways

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Objective & Hypothesis:Background/aims: Calcium channel blockers are increasingly used for the treatment of hypertension.
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Key Findings & Data:Methods: In this study, animals were divided into six groups as follows: control (Group 1), hypertension (Group 2), ovariectomy (Group 3), ovariectomy and hypertension (Group 4), ovariectomy, hypertension and amlodipine-treated (Group 5), and ovariectomy, hypertension and lacidipine-treated (Group 6).
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Conclusion & Impact:Conclusions: Our experimental results show that both hypertension and the postmenopausal period have negative effects on the number of hepatocytes and histological structure of the liver.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Background/aims: Calcium channel blockers are increasingly used for the treatment of hypertension. Menopause and hypertension are both important risk factors for liver damage and several other circulatory abnormalities. The aim of this study was to determine the effects of amlodipine and lacidipine in an ovariectomy-induced postmenopausal period model and a deoxycorticosterone acetate-salt-induced hypertensive model in rats. Methods: In this study, animals were divided into six groups as follows: control (Group 1), hypertension (Group 2), ovariectomy (Group 3), ovariectomy and hypertension (Group 4), ovariectomy, hypertension and amlodipine-treated (Group 5), and ovariectomy, hypertension and lacidipine-treated (Group 6). At the end of the experiment, the livers were removed and tissue samples were histologically and stereologically examined. Results: The numerical densities of the hepatocytes according to group were 0.000422, 0.00329, 0.000272, 0.00259, 0.00374 and 0.000346 &#956;m3, respectively. Significant differences were found between values of all groups (p<0.01, Mann-Whitney U test). According to histopathological investigation, Group 3 and particularly Group 4 showed some microscopic abnormalities such as dilatation in sinusoids central veins and branches of portal vein, irregularities of the hepatocyte columns, significant mononuclear cell infiltrations, and unstained vacuoles in the cytoplasm of the hepatocytes. Histological structure was protected from the destructive effects of ovariectomy and hypertension in Groups 5 and 6. Conclusions: Our experimental results show that both hypertension and the postmenopausal period have negative effects on the number of hepatocytes and histological structure of the liver. Both amlodipine and lacidipine appear to ameliorate the hypertensionand/or postmenopausal period-related decrease in hepatocyte number. We thus suggest that lacidipine and particularly amlodipine have important protective and recovering effects on the liver.

Özet

Amaç: Kalsiyum kanal blokerleri, hipertansiyon (HT) tedavisinde sıkça kullanılmaktadır. Menapoz ve hipertansiyonun her ikiside karaciğer hasarı ve çeşitli dolaşım bozuklukları için risk faktörleridir. Çalışmamızın amacı overektominin indüklediği postmenapozal dönem ve/veya deoksikortikosteron asetat-tuz modeli ile oluşturulan hipertansiyona amlodipin ve lasidipinin etkilerini belirlemektir. Yöntem: Çalışmamızda hayvanlar kontrol grubu (Grup 1), hipertansiyon (Grup 2), overektomi (Grup 3), overektomi ve hipertansiyon (Grup 4), overektomi, hipertansiyon ve amlodipin verilen grup (Grup 5) ve overektomi, hipertansiyon ve Lasidipin verilen grup (Grup 6) olmak üzere 6 gruba bölündü. Deneyin sonunda karaciğerler ayrılarak histolojik ve stereolojik çalışmaya alındı. Bulgular: Grupların hepatosit sayısal yoğunluğu sırasıyla 0.000422, 0.00329, 0.000272, 0.00259, 0.00374 ve 0.000346 μm3 olarak tespit edildi. Mann Whitney U testi ile peşpeşe gelen her grup arasında belirgin fark tespit edildi (p< 0.01). Grup 3 ve özellikle grup 4'ün histopatolojik incelenmesinde sinusoidler-santral venlerde genişleme ve portal venle köprüleşme, hepatosit kolonlarında düzensizlik, hepatosit stoplazmalarında boyanmamış vakuoller ve belirgin momonükleer hücre infiltrasyonu gibi bazı mikroskopik anormallikler izlendi. Grup 5 ve 6'nın histolojik yapıları, overektomi ve hipertansiyonun tahrip edici etkilerinden korunmuştu. Sonuç: Deneysel çalışmamız hipertansiyon ve postmenapozal dönemin hepatosit sayısı ve karaciğerin histolojik yapısını olumsuz yönde etkilediğini göstermiştir. Gerek lasidipin gereksede amlodipin postmenapozal dönem veya hipertansiyon ile ilişkili olarak azalan hepatosit sayısını iyileştirebilir. Bu nedenle, lasidipin ve özellikle amlodipinin karaciğeri koruyucu etkisinin olduğunu düşünmekteyiz.

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Cite This Article

DURSUN, H., ALBAYRAK, F., UYANIK, A., KELEŞ, N. O., BEYZAGÜL, P., BAYRAM, E., HALICI, Z., ALTUNKAYNAK, Z. B., SÜLEYMAN, H., OKÇU, N., ÜNAL, B. (2010). Hipertansiyon ve overektominin sıçan hepatositlerine etkisi. Amlodipin ve lasidipin sıçan hepatositlerini korur mu? (Histolojik ve stereolojik çalışma). Turkish Journal of Gastroenterology, Cilt: 21 - Sayı: 4, 387–395. https://ajindex.com/articles/410835

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