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Total 26 results found since Jan 2013.

Circadian preference and stroke characteristics: A descriptive study
This study set out to explore this relationship by examining whether there was an association between circadian preference and stroke characteristics in a sample of stroke outpatients, considering the time of stroke onset, the topography of the stroke and the resulting disability. We also examined whether sleep complaints (snoring, insomnia, sleep apnea) were associated with circadian preferences (i.e., morning-, evening-, and intermediate-types). We also compared circadian preferences and comorbidities in this sample, matched by age and sex, with those of healthy controls who took part in an epidemiological study (EPISONO...
Source: Chronobiology International - January 5, 2022 Category: Biology Authors: Eveli Truksinas Cristina Frange Giuliano da Paz Eliana Lottenberg Vago Monica Levy Andersen Sergio Tufik Fernando Morgadinho Santos Coelho Source Type: research

Sex differences in the effects of the moon on ischemic stroke incidence: new findings from Beijing, China.
Abstract Stroke is a major cause of death and disability in China, and no therapies have proven effective to prevent it. Popular belief holds that the lunar cycle affects human physiology, behavior, and health. The aim of our study is to determine whether the lunar cycle impacts the incidence of stroke subtypes [intracerebral hemorrhage (ICH), transient ischemic attack (TIA) and ischemic stroke (IS)]. We retrospectively extracted the discharge registry data of all patients with first-ever acute stroke hospitalized in the affiliated hospital of Beijing University of Traditional Chinese Medicine during 2002-2015. Th...
Source: Chronobiology International - July 12, 2020 Category: Biology Authors: Wang RR, Hao Y, Chen J, Wang MQ, Zheng RY, Shi LS, He J Tags: Chronobiol Int Source Type: research

Sex differences in stroke outcome correspond to rapid and severe changes in gut permeability in adult Sprague-Dawley rats
ConclusionsThese data show that extensive leakiness of the gut barrier is associated with severe post-stroke disability and suggest that reinforcing this barrier may improve stroke outcomes.
Source: Biology of Sex Differences - January 15, 2021 Category: Biology Source Type: research

Serum metabolomic patterns in young patients with ischemic stroke: a case study
ConclusionsSerum metabolomic patterns were significantly different between young patients with ischemic stroke and healthy controls. Our study is beneficial in providing a further view into the pathophysiology of young patients with ischemic stroke.
Source: Metabolomics - February 8, 2021 Category: Biology Source Type: research

Sex as predictor for achieved health outcomes and received care in ischemic stroke and intracerebral hemorrhage: a register-based study
ConclusionsA lower proportion of women had good functioning, a difference that remained in IS after adjustments for age, socioeconomic factors, living arrangements, ADL dependency, and stroke severity. The amount of received hospital care was lower for women after adjustments. Whether shorter hospital stay results in lower function or is a consequence of lower function cannot be elucidated. One-year survival was higher in men when no adjustments were made but lower after adjustments. This likely reflects that women were older at time of stroke, had more severe strokes, and more disability pre-stroke —factors that make a ...
Source: Biology of Sex Differences - March 7, 2018 Category: Biology Source Type: research

Identification and relative quantification of 3-nitrotyrosine residues in fibrinogen nitrated in vitro and fibrinogen from ischemic stroke patient plasma using LC-MS/MS.
Abstract Ischemic stroke is one of the leading causes of death and disability worldwide. This acute vascular event interferes with blood supply to the brain and induces a burst of free radicals such as nitric oxide and superoxide, producing peroxynitrite, a precursor of strong nitrating agents. Fibrinogen is one of the most abundant plasma proteins; it plays a role in the hemostatic system, mediating clot formation, which can be affected by nitrotyrosine formation. We hypothesized that nitration of fibrinogen by ONOOH and ONOOCO2- radical products could be one of the early events of the ischemic stroke, and protei...
Source: Free Radical Biology and Medicine - February 3, 2021 Category: Biology Authors: Medeiros R, Sousa B, Rossi S, Afonso C, Bonino L, Pitt A, López E, Spickett C, Borthagaray G Tags: Free Radic Biol Med Source Type: research

Diverse roles of mitochondria in ischemic stroke
Publication date: June 2018 Source:Redox Biology, Volume 16 Author(s): Jenq-Lin Yang, Sujira Mukda, Shang-Der Chen Stroke is the leading cause of adult disability and mortality in most developing and developed countries. The current best practices for patients with acute ischemic stroke include intravenous tissue plasminogen activator and endovascular thrombectomy for large-vessel occlusion to improve clinical outcomes. However, only a limited portion of patients receive thrombolytic therapy or endovascular treatment because the therapeutic time window after ischemic stroke is narrow. To address the current shortage of st...
Source: Redox Biology - March 15, 2018 Category: Biology Source Type: research

Mitochondria as a therapeutic target for ischemic stroke.
Abstract Stroke is the leading cause of death and physical disability worldwide. Mitochondrial dysfunction has been considered as one of the hallmarks of ischemic stroke and contributes to the pathology of ischemia and reperfusion. Mitochondria is essential in promoting neural survival and neurological improvement following ischemic stroke. Therefore, mitochondria represent an important drug target for stroke treatment. This review discusses the mitochondrial molecular mechanisms underlying cerebral ischemia and involved in reactive oxygen species generation, mitochondrial electron transport dysfunction, mitochond...
Source: Free Radical Biology and Medicine - November 4, 2019 Category: Biology Authors: He Z, Ning N, Zhou Q, Khoshnam SE, Farzaneh M Tags: Free Radic Biol Med Source Type: research

Transplantation of bone marrow mesenchymal stem cells decreases oxidative stress, apoptosis and hippocampal damage in brain of a spontaneously stroke model.
Abstract Stroke is the most common cause of motor disabilities and is a major cause of mortality worldwide. Adult stem cells have been shown to be effective against neuronal degeneration through mechanisms that include both the recovery of neurotransmitter activity and a decrease in apoptosis and oxidative stress. We chose the lineage Stroke Prone Spontaneously Hypertensive Rat (SHRSP) as a model for stem cells therapy. SHRSP can develop such severe hypertension that they generally suffer a stroke at approximately one year of age. The aims of this study were to evaluate whether mesenchymal stem cells (MSC) decreas...
Source: Free Radical Biology and Medicine - February 10, 2014 Category: Biology Authors: Longoni Calió M, Sousa Marinho D, Mi Ko G, Rodrigues R, Ferraz Carbonel A, Missae Oyama L, Ormanji M, Pinoti Guirao T, Luiz Calió P, Aparecida Reis L, de Jesus Simões M, Lisboa do Nascimento T, Teixeira Ferreira A, Rejane Antônio Bertoncini C Tags: Free Radic Biol Med Source Type: research

The potential of drug repurposing combined with reperfusion therapy in cerebral ischemic stroke: A supplementary strategy to endovascular thrombectomy
Publication date: Available online 11 October 2019Source: Life SciencesAuthor(s): Jenq-Lin Yang, Yun-Ru Yang, Shang-Der ChenAbstractStroke is the major cause of adult disability and the second or third leading cause of death in developed countries. The treatment options for stroke (thrombolysis or thrombectomy) are restricted to a small subset of patients with acute ischemic stroke because of the limited time for an efficacious response and the strict criteria applied to minimize the risk of cerebral hemorrhage. Attempts to develop new treatments, such as neuroprotectants, for acute ischemic stroke have been costly and tim...
Source: Life Sciences - October 13, 2019 Category: Biology Source Type: research

Lithium Co-administration with rutin improves post-stroke neurological outcomes via suppressing Gsk-3 β activity in a rat model
Free Radic Biol Med. 2023 Jul 4:S0891-5849(23)00522-1. doi: 10.1016/j.freeradbiomed.2023.07.004. Online ahead of print.ABSTRACTCerebral ischemic stroke is one of the leading causes of adult disability worldwide. Reperfusion is the only therapeutic option with a lot of side effects. In the current study, we investigated the efficacy of rutin and lithium co-treatment in improving post-stroke neurological outcomes in a transient global cerebral ischemia-reperfusion injury rat model. Middle-aged male rats were subjected to transient global cerebral ischemia-reperfusion. NORT and Y-maze were used to assess the cognitive process...
Source: Free Radical Biology and Medicine - July 6, 2023 Category: Biology Authors: Anil Kumar Rana Rajneesh Kumar Durgesh Nandan Shukla Damanpreet Singh Source Type: research

Hypoxia inducible factor prolyl hydroxylases as targets for neuroprotection by "antioxidant" metal chelators: From ferroptosis to stroke.
Abstract Neurologic conditions including stroke, Alzheimer's disease, Parkinson's disease and Huntington's disease are leading causes of death and long-term disability in the United States, and efforts to develop novel therapeutics for these conditions have historically had poor success in translating from bench to bedside. Hypoxia Inducible Factor-1alpha (HIF-1α) mediates a broad, evolutionarily conserved, endogenous adaptive program to hypoxia, and manipulation of components of the HIF pathway are neuroprotective in a number of human neurological diseases and experimental models. In this review, we discuss mole...
Source: Free Radical Biology and Medicine - January 31, 2013 Category: Biology Authors: Speer RE, Karuppagounder SS, Basso M, Sleiman S, Kumar A, Brand D, Smirnova N, Gazaryan I, Khim SJ, Ratan RR Tags: Free Radic Biol Med Source Type: research

Novel mechanistic insight on the neuroprotective effect of berberine: The role of PPAR δ for antioxidant action
Free Radic Biol Med. 2022 Jan 27:S0891-5849(22)00033-8. doi: 10.1016/j.freeradbiomed.2022.01.022. Online ahead of print.ABSTRACTCerebral ischemic stroke ranks the second leading cause of death and the third leading cause of disability in lifetime all around the world, urgently necessitating effective therapeutic interventions. Reactive oxygen species (ROS) have been implicated in stroke pathogenesis and peroxisome proliferator-activated receptors (PPARs) are prominent targets for ROS management. Although recent research has shown antioxidant effect of berberine (BBR), little is known regarding its effect upon ROS-PPARs sig...
Source: Free Radical Biology and Medicine - January 30, 2022 Category: Biology Authors: Jia-Wen Shou Xiao-Xiao Li Yun-Sang Tang Bobby Lim-Ho Kong Hoi-Yan Wu Meng-Jie Xiao Chun-Kai Cheung Pang-Chui Shaw Source Type: research