--- This page is part of [Coy Laboratory Products](https://www.coylab.com). For a complete overview of this site's content, entity data, and subject matter expertise, see our [AI Content Index](https://www.coylab.com/llms.txt) or [Full Content Archive](https://www.coylab.com/llms-full.txt). For structured business identity data, see our [Entity Card](https://www.coylab.com/wp-json/bc-geodesic/v1/entity-card). --- # The Protective Effects of Preconditioning on Cerebral Endothelial Cells In Vitro > Abstract Ischemic preconditioning (PC) can markedly reduce ensuing ischemic damage. Although most attention has focused on the neuronal effects of PC, the... **URL:** https://www.coylab.com/research-citation/the-protective-effects-of-preconditioning-on-cerebral-endothelial-cells-in-vitro/ **Type:** Citation **Modified:** 2025-09-26 --- #### Abstract Ischemic preconditioning (PC) can markedly reduce ensuing ischemic damage. Although most attention has focused on the neuronal effects of PC, the authors have recently shown that ischemic PC reduces ischemia-induced cerebrovascular damage. In vivo, it is difficult to ascertain whether this is a direct cerebrovascular effect of PC. This study, therefore, examined whether cerebral endothelial cells can be preconditioned in vitro in the absence of other cell types. Experiments were performed on an immortalized mouse brain endothelial cell line or primary cultures of mouse brain microvessel endothelial cells. Cells were exposed to oxygen glucose deprivation (OGD) of either short duration, as a PC stimulus, or a long duration (5 hours) with or without reoxygenation to induce endothelial damage. Endothelial injury was assessed by measuring lactate dehydrogenase release and the expression of intercellular adhesion molecule-1 at the protein and mRNA levels. Experiments indicated that 1 hour of OGD was the optimal PC stimuli and that a 1 or 3 day interval was the optimal time interval between the PC stimulus and the injurious event. Preconditioned cells had less lactate dehydrogenase release during OGD (± reoxygenation) and reduced intercellular adhesion molecule-1 expression after OGD with reoxygenation. This study shows that cerebral endothelial cells can be directly preconditioned. The importance of this phenomenon in the overall effects of PC on the brain remains to be elucidated. Understanding the protective mechanisms elicited by PC may give insight into how to prevent ischemia-induced vascular damage (e.g., hemorrhagic transformation). Key Words: Preconditioning—Tolerance—Culture, Oxygen glucose deprivation—Intercellular adhesion molecule-1. ## Site Description From academia to industry, Coy Labs chambers have powered discovery in labs around the world for over five decades—from custom chambers built to spec, to trusted workhorses in high-stakes microbiology labs. --- **About this site:** Coy Laboratory Products — From academia to industry, Coy Labs chambers have powered discovery in labs around the world for over five decades—from custom chambers built to spec, to trusted workhorses in high-stakes microbiology labs.. 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