Journals / Anadolu Kardiyoloji Dergisi / 2003 / Cilt: 3 - Sayı: 4

Deneysel miyokard infarktüsünde salgılayıcı kardiyomiyositlerin immünhistokimyasal ve elektron-mikroskopik özellikleri

Immunohistochemical and electron-microscopic characteristics of secretory cardiomyocytes in experimental myocardial infarction

Pages
299–302
Publication Date
2022-10-10
DOI
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Conclusion: Immunohistochemical investigations and analysis of submicroscopic structures of secretory cardiomyocytes after experimental MI showed, that cells were functionally active 24 hours after myocardial infarction with further (48 hours and 72 hours of MI) decrease in amount and impairement of activity.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: To study immunohistochemical and electron-microscopic features of secretory cardiomyocytes in experimental myocardial infarction (MI).
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Key Findings & Data:Methods: Totally 15 hearts of dogs with experimental MI were studied.
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Conclusion & Impact:Conclusion: Immunohistochemical investigations and analysis of submicroscopic structures of secretory cardiomyocytes after experimental MI showed, that cells were functionally active 24 hours after myocardial infarction with further (48 hours and 72 hours of MI) decrease in amount and impairement of activity.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: To study immunohistochemical and electron-microscopic features of secretory cardiomyocytes in experimental myocardial infarction (MI). Methods: Totally 15 hearts of dogs with experimental MI were studied. For electron-microscopic study materials were collected from left atrium, and its several parts (appendix, lateral and frontal walls). For immunohistochemical analysis of atrial natriuretic factor (ANF) incubation in monoclone immune serum was used (standard monoclonal serum and primary mice antibodies, Immunon). For statistic processing we used Chi-square test (criterion of Pearson agreement). Results: Immunohistochemical and electron-microscopic investigation after 24 hours from experimental myocardial infarction indicated increase of specific activity of secretory cardiomyocytes and after 48 hours decrease of secretion of ANF while cardiomyopathy appears. After 72 hours, blockade of ANF secretion with decompensation of secretory cardiomyocytes occurred. Conclusion: Immunohistochemical investigations and analysis of submicroscopic structures of secretory cardiomyocytes after experimental MI showed, that cells were functionally active 24 hours after myocardial infarction with further (48 hours and 72 hours of MI) decrease in amount and impairement of activity.

Özet

Amaç: Bu çalışmada deneysel miyokard infarktüsünde (Mİ) salgılayıcı kardiyomiyositlerin immünhistokimyasal ve elektron-mikroskopik özelliklerini araştırmayı amaçlamıştık. Yöntem: Deneysel Mİ'yı olan toplam 15 köpeğin kalpleri araştırılmıştır. Elektron-mikroskopik inceleme için materyaller sol atriyumdan ve onun farkli bölgelerden (apendiks, lateral ve frontal duvarları) toplandı. Atriyal natriüretik faktörün (ANF) immünhistokimyasal analizi için monoklonal immün serum kullanıldı (standard monoklonal serum ve primer fare antikorları, Immunon). İstatistiksel analizi için Ki-kare kriteri (Pearson kriteri) kullanıldı. Bulgular: İmmünhistokimyasal ve elektron-mikroskopik inceleme deneysel Mi'dan 24 saat sonra salgılayıcı kardiyomiyositlerin spesifik aktivitelerinin arttığını, ancak 48 saat sonra kardiyomiyopatinin ortaya çıkması ile beraber ANF salgılamasının azaldığını gösterdi. Salgılayıcı kardiyomiyositlerinin dekompansasyonu ve ANF blokajı ise 72 saat sonra ortaya çıkmıştır. Sonuç: İmmünhistokimyasal incelemeler ve salgılayıcı kardiyomiyositlerin submikroskopik yapılarının analizi miyokard infarktüsünün 24. saatinde hücrelerin fonksiyonel olarak aktif olduklarını, ancak daha sonra (Mİ'in 48.saati ve 72. saati) sayısal olarak azaldıklarını ve aktivitelerinde bozulma olduğunu gösterdiler.

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Cite This Article

AZİZOV, V. A., MURADOVA, S. R. (2022). Deneysel miyokard infarktüsünde salgılayıcı kardiyomiyositlerin immünhistokimyasal ve elektron-mikroskopik özellikleri. Anadolu Kardiyoloji Dergisi, Cilt: 3 - Sayı: 4, 299–302. https://ajindex.com/articles/437501

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