Objective: Oxidant and inflammatory substances released into the blood due to subarachnoidal hemorrhage (SAH) can pass into the peripheral compartment, causing distant organ damage due to blood-brain barrier permeability caused by oxidative stress, inflammation, and apoptosis. This study aimed to demonstrate the secondary damage to peripheral organs, including the lung, kidney, and liver, resulting from SAH.
Material and Method: Twenty rats were divided into sham and SAH groups, each consisting of ten animals. In the SAH group animals, 0.3 mL autologous blood taken from the tail artery was injected into the cisterna magna for 2 minutes. Seven days after SAH formation, all animals were euthanized under anesthesia. Following decapitation, brain tissues, lung, liver, and kidney tissues were placed in 10% formaldehyde for histopathological and immunohistochemical analysis.
Results: In the SAH group, neuronal degeneration in the cerebral cortex, and hyperemia and hemorrhage in the lung, kidney, and liver were observed histopathologically. In immunohistochemical examinations, decreased expression of brain-derived neurotrophic factor (BDNF) and neurofilament (NF) in the cerebral cortex, cerebellum, and hippocampus sections; In lung tissues, enhanced caspase (Cas)-3, hypoxia-inducible factor 1 alpha (Hif-1α) and nuclear factor kappa beta (NF-κB) expressions in the lung, Cas-5, cyclooxygenase-1 (Cox-1) and interleukin (IL)-1 expressions in the liver, Cas-3, Cox-1 and IL-3 expressions in the kidney were observed.
Conclusion: Following SAH, in addition to damage to brain tissue, peripheral tissues such as the lung, kidney, and liver can also be damaged through inflammation and apoptosis.
In this study, all experiments were performed under the guidelines for animal research from the National Institutes of Health and were approved by the Committee on Animal Research of Mehmet Akıf Ersoy University, Burdur (Ethic No:24.04.2024/122-1298).
This study was supported by the Suleyman Demirel University Scientific Research Projects Coordination Unit (Project code: TSG-2022-8783).
TSG-2022-8783
TSG-2022-8783
Primary Language | English |
---|---|
Subjects | Brain and Nerve Surgery (Neurosurgery) |
Journal Section | Research Articles |
Authors | |
Project Number | TSG-2022-8783 |
Publication Date | December 26, 2024 |
Submission Date | May 20, 2024 |
Acceptance Date | September 19, 2024 |
Published in Issue | Year 2024 Volume: 31 Issue: 4 |
Süleyman Demirel Üniversitesi Tıp Fakültesi Dergisi/Medical Journal of Süleyman Demirel University is licensed under Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International.