Circulating miR-302b-3p and miR-103 as potential biomarkers for the diagnosis and prognosis of acute heart failure in Egyptian adults and its relation to NT-Pro BNP /

Haidy Magdy Adly Abd El Malak,

Circulating miR-302b-3p and miR-103 as potential biomarkers for the diagnosis and prognosis of acute heart failure in Egyptian adults and its relation to NT-Pro BNP / تحديد مستوى MIR-302B-3P و MIR-103 فى تشخيص و تحديد قصور القلب الحاد وعلاقتهم بمستوى NT-ProBNP عند المرضى المصريين by Haidy Magdy Adly Abd El Malak ; Supervisors Prof. Dr. Nehad Ahmed Mosaad, Dr. Mona Ahmed Abu El Hassan, Dr. Radwa Marawan Abd El Halim, Dr. Emmanuel Fares Aziz. - 141 pages : illustrations ; 25 cm. + CD.

Thesis (Ph.D)-Cairo University, 2025.

Bibliography: pages 114-141.

Background: Acute heart failure (AHF) is a prevalent and life-threatening condition that is associated with high morbidity and mortality, particularly among adults. Timely and accurate diagnosis and prognosis are essential for effective management. MicroRNAs (miRNAs) have emerged as promising biomarkers in various cardiovascular diseases. Specifically, miR-302b-3p and miR-103 have shown potential as biomarkers in heart failure. However, their role in AHF diagnosis and prognosis, especially in Egyptian adults, remains underexplored. Additionally, the relationship between these miRNAs and NT-Pro BNP, a key biomarker for heart failure, warrants investigation.
Objectives: This study aims to investigate the diagnostic and prognostic potential of circulating miR-302b-3p and miR-103 in AHF among Egyptian adults. It also aims to explore the relationship between these miRNAs and NT-Pro BNP levels in AHF patients.
Subjects and Methods: The study involved 95 participants, consisting of 45 Egyptian adults diagnosed with AHF and 50 age- and gender-matched healthy controls. Circulating levels of miR-302b-3p and miR-103 were measured using quantitative PCR, while NT-Pro BNP levels were determined via enzyme-linked immunosorbent assay (ELISA). Clinical and demographic data were collected to assess the association of miRNAs with the severity and prognosis of AHF.
Results: miR-302b-3p was significantly decreased in AHF patients compared to healthy controls (p < 0.05). The levels of this miRNA exhibited a strong negative correlation with NT-Pro BNP levels (r = 0.78, p P value 0.013). on the other hand, no significant difference was detected in fold change in miR-103 between the cases and controls. Decreased miR-302b-3p and elevated NT-ProBNP levels were associated with poorer prognosis, including higher rates of hospitalization and 1-year mortality in AHF patients.(P<0.05)
Conclusion: Circulating miR-302b-3p represent promising biomarker for the diagnosis and prognosis of AHF in Egyptian adults. Their strong correlation with NT- Pro BNP further supports its potential role in clinical practice. These findings suggest that this miRNA may aid in the early detection and stratification of AHF, ultimately improving patient management. تبحث دراستنا في دور اثنين من miRNAs الدقيقة المحددة، miR-302b-3p وmiR-103، كمؤشرات حيوية في تشخيص الأمراض المختلفة والتنبؤ بها. ينصب التركيز الأساسي للبحث على فهم كيفية استخدام هذه miRNAs لتحسين الكشف المبكر والإدارة السريرية لحالات مثل قصور القلب الحاد (AHF).
تهدف الدراسة إلى تقييم ما إذا كانت المستويات المنتشرة لـ miR-302b-3p وmiR-103 يمكن أن تكون بمثابة مؤشرات حيوية موثوقة لتشخيص المرض، وكذلك التنبؤ بالنتائج السريرية مثل شدة المرض والوفيات. يتم فحص كلا miRNAs لقدرتهما على توفير معلومات تشخيصية إضافية عند استخدامها جنبًا إلى جنب مع المؤشرات الحيوية المثبتة مثل NT-Pro BNP، وهو مؤشر حيوي شائع يستخدم في إدارة قصور القلب.
من خلال تحليل شامل لعينات الدم من كل من الأصحاء والمرضى الذين يعانون من أمراض القلب والأوعية الدموية المختلفة، كشفت الدراسة أن انخفاض مستويات miR-302b-3p يرتبط بوجود قصور القلب الحاد. بالإضافة إلى ذلك، وجدت الدراسة أن انخفاض مستويات miRNA ارتبطت بزيادة معدلات الاستشفاء والوفيات، مما يؤكد دورها في التنبؤ بالنتائج السريرية.




Text in English and abstract in Arabic & English.


Pathology
الباثولوجي

Acute heart failure miR-302b-3p miR-103 NT-Pro BNP biomarkers prognosis diagnosis Egyptian adults

616.07
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