1. The Use of Microencapsulated Autologous Thrombi for Modelling Chronic Thromboembolic Pulmonary Hypertension in Rats.
- Author
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Karpov AA, Mihailova AM, Cherepanov DE, Chefu SG, Shilenko LA, Vaulina DD, Butskikh MG, Chervaev KA, Sidorova EE, Ivkin DY, and Galagudza MM
- Subjects
- Animals, Rats, Pulmonary Artery metabolism, Chronic Disease, Hypertension, Pulmonary metabolism, Pulmonary Embolism metabolism
- Abstract
Here we developed a model of chronic thromboembolic pulmonary hypertension (CTEPH) using repeated intravenous administration of microencapsulated thrombi with a controlled rate of biodegradation. Autologous thrombi encapsulated in alginate microspheres with a diameter of 190±48 μm were intravenously injected to rats 8 times every 4 days. In the comparison group, nonmodified thrombi were injected. After 6 weeks, a significant increase in systolic pressure in the right ventricle, a decrease in exercise tolerance, and an increase in the index of vascular wall hypertrophy were revealed in the group receiving injections of microencapsulated thrombi in comparison with the group receiving nonmodified thrombi and healthy animals. Thus, the developed representative CTEPH model can be used to test promising pharmacological substances., (© 2023. Springer Science+Business Media, LLC, part of Springer Nature.)
- Published
- 2023
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