{"title":"The Effects of Regulating Increased Blood Glucose Levels on Plasma Endothelin-1 Levels After Severe Head Trauma in Rats.","authors":"Mehmet Meral, Rahmi Kemal Koc, Ahmet Selcuklu","doi":"10.5137/1019-5149.JTN.43318-23.2","DOIUrl":null,"url":null,"abstract":"<p><strong>Aim: </strong>To examine the effects of regulating increased blood glucose levels on plasma ET-1 levels after severe head trauma in rats.</p><p><strong>Material and methods: </strong>Traumatic diffuse brain injury-induced rats were followed for 7 days and were randomly divided into two groups of 36 rats. Pre- and posttraumatic blood glucose and ET-1 levels were measured in group 1 (control). Posttraumatic blood glucose levels were maintained at normal levels using insulin and both blood glucose and ET-1 levels were measured at 2, 6, 12, 24, and 48 h and 7 days posttrauma in group 2. The study excluded animals that died and had skull fractures.</p><p><strong>Results: </strong>Posttraumatic plasma ET-1 levels (n=36) were significantly higher than baseline values in group 1 (p < 0.05). ET-1 levels in group 2 at the 7-day follow-up after trauma were significantly higher than baseline values (n=36) (p < 0.05). However, the increased ET-1 levels were statistically significantly lower in group 2 than in group 1 (p < 0.05).</p><p><strong>Conclusion: </strong>The increased ET-1 levels were significantly prevented by keeping blood glucose levels within normal limits with insulin after severe head trauma. Thus, secondary injury to cerebral blood flow can be prevented by reducing the occurrence of vasospasm that starts in the early posttraumatic period or by stimulating the release of nitric oxide. Therefore, further studies on the role of ET-1 and insulin in developing secondary injuries after severe head trauma would be beneficial.</p>","PeriodicalId":23395,"journal":{"name":"Turkish neurosurgery","volume":"1 1","pages":"263-267"},"PeriodicalIF":0.9000,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Turkish neurosurgery","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.5137/1019-5149.JTN.43318-23.2","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CLINICAL NEUROLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Aim: To examine the effects of regulating increased blood glucose levels on plasma ET-1 levels after severe head trauma in rats.
Material and methods: Traumatic diffuse brain injury-induced rats were followed for 7 days and were randomly divided into two groups of 36 rats. Pre- and posttraumatic blood glucose and ET-1 levels were measured in group 1 (control). Posttraumatic blood glucose levels were maintained at normal levels using insulin and both blood glucose and ET-1 levels were measured at 2, 6, 12, 24, and 48 h and 7 days posttrauma in group 2. The study excluded animals that died and had skull fractures.
Results: Posttraumatic plasma ET-1 levels (n=36) were significantly higher than baseline values in group 1 (p < 0.05). ET-1 levels in group 2 at the 7-day follow-up after trauma were significantly higher than baseline values (n=36) (p < 0.05). However, the increased ET-1 levels were statistically significantly lower in group 2 than in group 1 (p < 0.05).
Conclusion: The increased ET-1 levels were significantly prevented by keeping blood glucose levels within normal limits with insulin after severe head trauma. Thus, secondary injury to cerebral blood flow can be prevented by reducing the occurrence of vasospasm that starts in the early posttraumatic period or by stimulating the release of nitric oxide. Therefore, further studies on the role of ET-1 and insulin in developing secondary injuries after severe head trauma would be beneficial.
期刊介绍:
Turkish Neurosurgery is a peer-reviewed, multidisciplinary, open access and totally free journal directed at an audience of neurosurgery physicians and scientists. The official language of the journal is English. The journal publishes original articles in the form of clinical and basic research. Turkish Neurosurgery will only publish studies that have institutional review board (IRB) approval and have strictly observed an acceptable follow-up period. With the exception of reference presentation, Turkish Neurosurgery requires that all manuscripts be prepared in accordance with the Uniform Requirements for Manuscripts Submitted to Biomedical Journals.