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A significant amount of evidence from the past few years has shown that Sirtuin 1 (SIRT1), a histone deacetylase dinucleotide of nicotinamide adenine dinucleotide (NAD) is closely related to the cerebral ischemia. Several potential neuroprotective strategies like resveratrol, ischemia preconditioning, and caloric restriction exert their neuroprotection effects through SIRT1-related signaling pathway. However, the potential mechanisms and neuroprotection of SIRT1 in the process of cerebral ischemia injury development and recovery have not been systematically elaborated. This review summarized the the deacetylase activity and distribution of SIRT1 as well as analyzed the roles of SIRT1 in astrocytes, microglia, neurons, and brain microvascular endothelial cells (BMECs), and the molecular mechanisms of SIRT1 in cerebral ischemia, providing a theoretical basis for exploration of new therapeutic target in future.
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http://dx.doi.org/10.1007/s10571-022-01288-3 | DOI Listing |
J Neurophysiol
September 2025
Department of Radiology, Shengjing Hospital of China Medical University, No. 36, Sanhao Street, Heping District, Shenyang 110004, China.
Neonatal hypoxic-ischemic encephalopathy (HIE) is a significant cause of developmental disorders and permanent central nervous system damage, with functional recovery closely linked to myelin sheath integrity. This study aimed to analyze the expression of pH and the voltage-gated proton channel (Hv1) in the brains of neonatal pigs with HIE at various time points, alongside changes in myelin-related proteins. MRI was employed to localize the basal ganglia and assess pH changes post-hypoxia-ischemia, while immunofluorescence staining was used to evaluate Hv1, myelin basic protein (MBP), myelin oligodendrocyte glycoprotein (MOG), and myelin-associated glycoprotein (MAG).
View Article and Find Full Text PDFMetab Brain Dis
September 2025
Department of Neuroscience, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
Brain ischemia is a major global cause of disability, frequently leading to psychoneurological issues. This study investigates the effects of 4-aminopyridine (4-AP) on anxiety, cognitive impairment, and potential underlying mechanisms in a mouse model of medial prefrontal cortex (mPFC) ischemia. Mice with mPFC ischemia were treated with normal saline (NS) or different doses of 4-AP (250, 500, and 1000 µg/kg) for 14 consecutive days.
View Article and Find Full Text PDFPediatr Crit Care Med
September 2025
Waisman Brain Imaging Laboratory, University of Wisconsin, Madison, WI.
Objectives: Elevated intracranial pressure (ICP) is a complication of severe traumatic brain injury (TBI) that carries a risk of secondary brain injury. This study investigated the association between ICP burden and brain injury patterns on MRI in children with severe TBI.
Design, Setting, And Patients: Secondary analysis of the Approaches and Decisions in Acute Pediatric TBI (ADAPT) study, which included children with severe TBI (Glasgow Coma Scale score < 9) who received a clinical MRI within 30 days of injury.
Biomed Environ Sci
August 2025
Clinical Research Institute, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China.
Objective: To investigate the association between long-term glycemic control and cerebral infarction risk in patients with diabetes through a large-scale cohort study.
Methods: This prospective, community-based cohort study included 12,054 patients with diabetes. From 2006 to 2012, 38,272 fasting blood glucose (FBG) measurements were obtained from these participants.
Acta Physiol (Oxf)
October 2025
Biomedical Engineering and Physics, Amsterdam University Medical Center, University of Amsterdam, Amsterdam, the Netherlands.
Background: The cerebral circulation is continuously challenged by intravascular micrometer-sized particles that become trapped microvascular-emboli. These particles may include micro-thrombi, stiffened erythrocytes, and leukocytes, while also fat particles, air, and microplastics may cause microvascular embolism.
Review Scope: In this narrative review, we discuss these embolization processes and their acute and chronic consequences.