Background: Cerebral vasospasm (CV) is the leading cause of morbidity and mortality occurring after subarachnoid hemorrhage (SAH). Etiopathogenesis of CV is multifactorial. Selenium is the cofactor of the glutathione peroxidase (GSH-Px) enzyme which is a very important defense mechanism against antioxidants. According to the literature, oxidants are known to play a remarkable role in the pathogenesis of vasospasm occurring after SAH. Therefore, many studies have been conducted with antioxidant agents, based on the theory that elevated activity of GSH-Px enzyme might prevent the development of CV after SAH. Majority of those studies reported positive results. However, as a result of our literature review, we came across no study which involves the investigation of the role of selenium alone in the prevention of CV after SAH. In our study, we aim to find the answer to the following question: "Can selenium alone prevent cerebral vasospasm following SAH at early stage?"
Methods: We used the "rat femoral artery vasospasm model" of Okada et al. as the vasospasm model of our study. First, rats were divided into three groups: group 1 (n = 8), control group; group 2 (n = 8), vasospasm group; and group 3 (n = 8), vasospasm + selenium group. Statistical comparison of groups 1 and 2 revealed significant thickening in the vascular wall and a decrease in the lumen diameter in group 2, compared with group 1. Statistical comparison of the vascular lumen diameters of groups 1 and 3 showed no significant difference, whereas the comparison of mean vascular wall thickness displayed a significant increase in group 3. Moreover, statistical comparison of groups 2 and 3 regarding vascular lumen diameters showed a significant decrease in group 2, whereas group 3 displayed a significant decrease in terms of vascular wall thickness.
Conclusion: According to the results of our study, selenium morphometrically prevents the development of peripheral vasospasms.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s00701-010-0599-4 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Early developmental trajectories of the impaired hand in infants with unilateral cerebral palsy.
Dev Med Child Neurol
January 2025
Queensland Cerebral Palsy and Rehabilitation Research Centre, Child Health Research Centre, Faculty of Medicine, The University of Queensland, Brisbane, Australia.
Aim: To identify developmental trajectories of impaired hand function in infants aged 3 to 15 months with unilateral cerebral palsy (CP).
Method: Sixty-three infants (37 male; median gestational age 37 weeks [interquartile range 30-39.1 weeks]) recruited as part of a randomized trial with a confirmed diagnosis of unilateral CP were included.
Low-Level Red Light for the Progression Myopia in Children: A Meta-Analysis.
Semin Ophthalmol
January 2025
Department of Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, China.
Purposes: This meta-analysis aims to systematically analyze the efficacy of low-level red light (LRL) therapy for myopia control and prevention in children.
Methods: All the data were searched from the PubMed, EMBASE, and the Cochrane Library. The Cochrane Handbook was used to evaluate the quality of the included studies.
Diversity patterns and knowledge gaps of Atlantic Forest epiphyllous bryophytes: a highly neglected group.
Ann Bot
January 2025
Laboratório de Ecologia e Biogeografia de Plantas, Departamento de Biodiversidade, Setor Palotina, Universidade Federal do Paraná, Rua Pioneiro, 2153, Jardim Dallas, CEP 85950 000, Palotina, Paraná, Brazil.
Background: Epiphyllous bryophytes are a group of plants with complex adaptations to colonize the leaves of vascular plants and are considered one of the most specialized and sensitive groups to environmental changes. Despite their specificity and ecological importance, these plants represent a largely neglected group in relation to scientific research and ecological data. This lack of information directly affects our understanding of biodiversity patterns and compromises the conservation of this group in threatened ecosystems.
View Article and Find Full Text PDFImpact and Mechanisms of Cognitive Behavioural Therapy for Insomnia on Fatigue among Cancer Survivors: A Secondary Analysis of a Randomized Controlled Trial.
Sleep
January 2025
Department of Psychology, Faculty of Science, Memorial University, St. John's, NL, Canada.
Study Objectives: Cancer-related fatigue is one of the most common symptoms in cancer survivors. Cognitive behavioural therapy for insomnia (CBT-I) can improve fatigue, but mechanisms are unclear. This secondary analysis of a randomized controlled trial evaluated whether CBT-I led to a significant improvement in fatigue, accounting for change in comorbid symptoms of insomnia, perceived cognitive impairment (PCI), anxiety, and depression.
View Article and Find Full Text PDFExamining Electronic Nicotine Delivery System (ENDS) Cue Reactivity Using a Remote Platform: Cigarette and ENDS Desire in Dual Users.
Nicotine Tob Res
January 2025
University of Chicago, Department of Psychiatry and Behavioral Neuroscience, Chicago, IL.
Introduction: Prior research shows that in-person exposure to electronic nicotine delivery systems (ENDS) use increases desire for cigarettes and ENDS. However, less is known about the impact of cues delivered during remote interactions. This study extends previous in-person cue work by leveraging a remote confederate-delivered cue-delivery paradigm to evaluate the impact of dual nicotine vaping (vs.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!