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Condition: Ischemic Stroke
Nutrition: High Fat

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Total 41 results found since Jan 2013.

Deferoxamine Treatment Prevents Post-Stroke Vasoregression and Neurovascular Unit Remodeling Leading to Improved Functional Outcomes in Type 2 Male Diabetic Rats: Role of Endothelial Ferroptosis
This study aimed to determine the impact of iron chelation with deferoxamine (DFX) on (1) cerebral vascularization patterns and (2) functional outcomes after stroke in control and diabetic rats. After 8  weeks of type 2 diabetes induced by a combination of high-fat diet and low-dose streptozotocin, male control and diabetic animals were subjected to thromboembolic middle cerebral artery occlusion (MCAO) and randomized to vehicle, DFX, or tPA/DFX and followed for 14 days with behavioral tests. Vas cular indices (vascular volume and surface area), neurovascular remodeling (AQP4 polarity), and microglia activation were meas...
Source: Translational Stroke Research - August 31, 2020 Category: Neurology Source Type: research

Cell-Based Therapies for Stroke: Promising Solution or Dead End? Mesenchymal Stem Cells and Comorbidities in Preclinical Stroke Research
Conclusion The high prevalence of comorbidities in patients with stroke indicates the need for therapies in preclinical studies that take into account these comorbidities in order to avoid failures in translation to the patient. Preclinical studies are beginning to evaluate the efficacy of MSC treatment in stroke associated with comorbidities, especially hypertension, for ischemic and hemorrhagic stroke. Regarding aging and diabetes, only ischemic stroke studies have been performed. For the moment, few studies have been performed and contradictory results are being reported. These contradictory results may be due to the u...
Source: Frontiers in Neurology - April 8, 2019 Category: Neurology Source Type: research

Exosomes derived from bone marrow mesenchymal stem cells harvested from type two diabetes rats promotes neurorestorative effects after stroke in type two diabetes rats.
CONCLUSIONS: T2DM-MSC-Exo treatment for stroke in T2DM rats promotes neurorestorative effects and improves functional outcome. Down regulation of miR-9 expression and increasing its target ABCA1 pathway may contribute partially to T2DM-MSC-Exo treatment induced white matter remodeling and anti-inflammatory responses. PMID: 32889008 [PubMed - as supplied by publisher]
Source: Experimental Neurology - August 31, 2020 Category: Neurology Authors: Venkat P, Zacharek A, Landschoot-Ward J, Wang F, Culmone L, Chen Z, Chopp M, Chen J Tags: Exp Neurol Source Type: research

Dysregulated Hypothalamic –Pituitary–Adrenal Axis Is Associated With Increased Inflammation and Worse Outcomes After Ischemic Stroke in Diabetic Mice
Diabetic patients have larger infarcts, worse neurological deficits, and higher mortality rate after an ischemic stroke. Evidence shows that in diabetes, the hypothalamic–pituitary–adrenal (HPA) axis was dysregulated and levels of cortisol increased. Based on the role of the HPA axis in immunity, we hypothesized that diabetes-dysregulated stress response exacerbates stroke outcomes via regulation of inflammation. To test this hypothesis, we assessed the regulation of the HPA axis in diabetic mice before and after stroke and determined its relevance in the regulation of post-stroke injury and inflammation. Diabetes was ...
Source: Frontiers in Immunology - June 16, 2022 Category: Allergy & Immunology Source Type: research

FDG atrial uptake is associated with an increased prevalence of stroke in patients with atrial fibrillation
ConclusionsThis study shows a significant correlation between FDG atrial uptake and AF. While inconsistent, this pattern seems to be associated with an increased prevalence of cardioembolic stroke.
Source: European Journal of Nuclear Medicine and Molecular Imaging - April 27, 2019 Category: Nuclear Medicine Source Type: research

Altered Jagged1-Notch1 Signaling in Enhanced Dysfunctional Neovascularization and Delayed Angiogenesis After Ischemic Stroke in HFD/STZ Induced Type 2 Diabetes Rats
This study was aimed to characterize structural alterations and potential mechanisms in brain microvessels before and after ischemic stroke in type 2 diabetic rats treated with high-fat diet and streptozotocin (HFD/STZ). Furtherly, we tested our hypothesis that dysregulated intercellular Jagged1-Notch1 signaling was involved in the dysfunctional cerebral neovascularization both before and after ischemic stroke in HFD/STZ rats. In our study, we found increased yet dysfunctional neovascularization with activated Jagged1-Notch1 signaling in the cerebrovasculature before cerebral ischemia in HFD/STZ rats compared with non-diab...
Source: Frontiers in Physiology - July 8, 2021 Category: Physiology Source Type: research

Prolonged High Fat Diet Worsens the Cellular Response to a Small, Covert-like Ischemic Stroke
Publication date: Available online 4 February 2019Source: NeuroscienceAuthor(s): Kathleen E. Fifield, Todd M. Rowe, Joanna B. Raman-Nair, Michiru Hirasawa, Jacqueline L. VanderluitAbstractObesity is associated with worse neurological outcomes following overt ischemic strokes. The majority of strokes however, are covert, small strokes that often evade detection. How obesity impacts the cellular response to covert strokes is unclear. Here, we used a diet-induced obesity model by feeding mice a high fat diet (HFD) and examining its impact on the behavioral and cellular responses to either an Endothelin-1-induced focal ischemi...
Source: Neuroscience - February 5, 2019 Category: Neuroscience Source Type: research

Resolution of inflammation is disturbed in acute ischemic stroke with diabetes mellitus and rescued by resolvin D2 treatment
CONCLUSIONS: Our data demonstrate resolution of inflammation is impaired by DM in AIS patients, implicating a novel mechanism of un-resolved inflammation in DM-related AIS. Furthermore, RvD2 promotes inflammation resolution in macrophages/microglia and protects DM-related AIS, and may thus serve as a novel therapeutic target.PMID:35750271 | DOI:10.1016/j.freeradbiomed.2022.06.231
Source: Free Radical Biology and Medicine - June 24, 2022 Category: Biology Authors: Xin Tang Lan Liu Zhijuan Miao Jiawei Zhang Xiaolong Cai Bing-Qiao Zhao Gefei Chen Marianne Schultzberg Yuwu Zhao Xiuzhe Wang Source Type: research

Cholestyramine resin administration alleviated cerebral ischemic injury in obese mice by improving gut dysbiosis and modulating the bile acid profile
In conclusion, Obesity induces gut dysbiosis, worsens stroke outcomes, and perturbs the BA profile. The dysbiotic microbiome is an important linkage between obesity and stroke. CR confers metabolic benefits and neuroprotective effects in obesity, perhaps by modulating gut microbial composition and BA metabolism.PMID:36179877 | DOI:10.1016/j.expneurol.2022.114234
Source: Experimental Neurology - September 30, 2022 Category: Neurology Authors: Jianhai Liang Mingsi Zhang Huidi Wang Yueran Ren Qiheng Wu Ranshi Huang Jiahui Xie Jia Yin Jiajia Zhu Source Type: research

NLRP3 Inflammasome Inhibition with MCC950 Improves Diabetes-Mediated Cognitive Impairment and Vasoneuronal Remodeling After Ischemia
Publication date: Available online 25 February 2019Source: Pharmacological ResearchAuthor(s): Rebecca Ward, Weiguo Li, Yasir Abdul, LaDonya Jackson, Guangkuo Dong, Sarah Jamil, Jessica Filosa, Susan C. Fagan, Adviye ErgulAbstractDiabetes increases the risk and worsens the progression of cognitive impairment via the greater occurrence of small vessel disease and stroke. Yet, the underlying mechanisms are not fully understood. It is now accepted that cardiovascular health is critical for brain health and any neurorestorative approaches to prevent/delay cognitive deficits should target the conceptual neurovascular unit (NVU) ...
Source: Pharmacological Research - February 26, 2019 Category: Drugs & Pharmacology Source Type: research

Knockdown of NRSF Alleviates Ischemic Brain Injury and Microvasculature Defects in Diabetic MCAO Mice
Diabetes is one of the well-established risk factors of stroke and is associated with a poor outcome in patients with stroke. Previous studies have shown that the expression of neuron restrictive silencer factor (NRSF) is elevated in diabetes as well as ischemic stroke. However, the role of NRSF in regulating an outcome of diabetic ischemic stroke has not been completely understood. Here, we hypothesized that diabetes-induced NRSF elevation can aggravate brain injury and cognition impairment in ischemic stroke. The diabetic ischemic stroke mice model was established by 8 weeks of high-fat-diet feeding and 5 days of strepto...
Source: Frontiers in Neurology - May 13, 2022 Category: Neurology Source Type: research

Chemical Composition, Protective Effects, and Mechanisms of Volatile Oil from Fructus Gleditsiae Abnormalis with Nasal Administration against Ischemic Injury in HFD and MCAO-Induced Rats
This study is aimed to analyze the constituents of the volatile oil in FGA (VOFGA) using gas chromatography coupled with mass spectrometry (GC-MS) and explore the underlying effects and mechanisms of VOFGA in the prevention and treatment of ischemia stroke. An in vivo ischemia model was constructed by combination treatment of high-fat diet (HFD) and middle cerebral artery occlusion (MCAO) method. After administration, the cerebral infarction volume, the brain water content, hemorheology, blood lipids, inflammatory factors, oxidative stress indicators, Bax, Bcl-2, and cleaved caspase-3 and histological examination (HE) were...
Source: Evidence-based Complementary and Alternative Medicine - November 11, 2021 Category: Complementary Medicine Authors: Chengyue Luo Yumei Wu Xiaolan Chen Wei Han Jing Wan Nana Dong Bili Deng Dereje Kebebe Source Type: research

Inhibition of NLRP3 Inflammasome Ameliorates Cerebral Ischemia-Reperfusion Injury in Diabetic Mice.
In conclusion, the NLRP3 inflammasome was involved in the complex diseases of diabetic stroke. MCC950, the NLRP3 specific inhibitor, ameliorated diabetic mice with cerebral ischemia-reperfusion injury and improved the 28-day survival rate during the recovery stage of ischemic stroke. PMID: 29853850 [PubMed - in process]
Source: Neural Plasticity - June 6, 2018 Category: Neurology Authors: Hong P, Li FX, Gu RN, Fang YY, Lai LY, Wang YW, Tao T, Xu SY, You ZJ, Zhang HF Tags: Neural Plast Source Type: research

Dairy consumption and mortality after myocardial infarction: a prospective analysis in the Alpha Omega Cohort
CONCLUSIONS: In Dutch post-MI patients, yogurt consumption was inversely associated with CVD mortality and all-cause mortality. Associations for milk and other dairy products were neutral or inconsistent.This trial was registered at clinicaltrials.gov as NCT03192410.PMID:33826695 | DOI:10.1093/ajcn/nqab026
Source: The American Journal of Clinical Nutrition - April 7, 2021 Category: Nutrition Authors: Esther Cruijsen Maria G Jacobo Cejudo Leanne K K üpers Maria C Busstra Johanna M Geleijnse Source Type: research