دورية أكاديمية
Exploring the Efficacy of miR-33 Antagonism in Promoting Regression of Intracranial Atherosclerosis in a Nonhuman Primate Model
| العنوان: | Exploring the Efficacy of miR-33 Antagonism in Promoting Regression of Intracranial Atherosclerosis in a Nonhuman Primate Model |
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| المؤلفون: | Hecker, Peter |
| المصدر: | Theses and Dissertations--Pharmacology and Nutritional Sciences |
| بيانات النشر: | UKnowledge |
| سنة النشر: | 2023 |
| المجموعة: | University of Kentucky: UKnowledge |
| مصطلحات موضوعية: | Intracranial Atherosclerosis, Vascular Dementia, microRNA, miR-33, Nonhuman Primates, Stroke, Cardiovascular Diseases, Cardiovascular System, Nervous System Diseases, Neurosciences, Pathological Conditions, Signs and Symptoms |
| الوصف: | Atherosclerosis, characterized by lipid accumulation and arterial inflammation, is a major contributor to global morbidity and mortality. Despite significant progress in understanding atherosclerosis in extracranial arteries, the study of intracranial atherosclerosis (ICAS) has been relatively neglected, despite its crucial role in stroke and vascular cognitive impairment. Challenges related to ICAS, including its location within the cranium and limited availability of suitable animal models, have hindered research progress in this area. Although nonhuman primates (NHPs) are commonly used for studying extracranial atherosclerosis, a comprehensive understanding of ICAS pathophysiology in these animals is lacking. By subjecting NHPs to a high-fat/cholesterol diet, we successfully induced measurable ICAS, providing a unique opportunity to investigate underlying mechanisms and potential therapeutic strategies for ICAS regression. This study presents a robust NHP model of ICAS development and explores the potential of miR-33 antagonism for promoting atherosclerosis regression. Mouse studies have shown that inhibiting miR-33a can stabilize or regress atherosclerosis in extracranial arteries, but their translatability is limited. To address this, we employed an NHP model that closely mimics human miR-33a and miR-33b expression and atherosclerosis development. Our investigation aims to assess the effectiveness of miR-33 antagonism in promoting ICAS regression in 61 NHPs, using histological characterization and digital pathology techniques to evaluate ICAS morphology and composition. Surprisingly, our results showed no histological evidence supporting the efficacy of miR-33 antagonism in improving ICAS regression measures. This study significantly contributes to our understanding of ICAS and its potential treatment strategies by establishing a reliable animal model for ICAS development. However, further investigation is required to determine the role of miR-33 antagonism in atherosclerosis regression. These findings have ... |
| نوع الوثيقة: | text |
| وصف الملف: | application/pdf |
| اللغة: | unknown |
| العلاقة: | https://uknowledge.uky.edu/pharmacol_etds/52Test; https://uknowledge.uky.edu/context/pharmacol_etds/article/1054/viewcontent/Hecker_Peter_Dissertation.pdfTest |
| DOI: | 10.13023/etd.2023.347 |
| الإتاحة: | https://doi.org/10.13023/etd.2023.347Test https://uknowledge.uky.edu/pharmacol_etds/52Test https://uknowledge.uky.edu/context/pharmacol_etds/article/1054/viewcontent/Hecker_Peter_Dissertation.pdfTest |
| رقم الانضمام: | edsbas.9213D0B |
| قاعدة البيانات: | BASE |
| DOI: | 10.13023/etd.2023.347 |
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