Filtered By:
Nutrition: Potassium

This page shows you your search results in order of relevance. This is page number 5.

Order by Relevance | Date

Total 378 results found since Jan 2013.

Iptakalim improves cerebral microcirculation in mice after ischemic stroke by inhibiting pericyte contraction
In this study we investigated the impacts of iptakalim on pericytes contraction in stroke. Mice were subjected to cerebral artery occlusion (MCAO), then administered iptakalim (10 mg/kg, ip). We showed that iptakalim administration significantly promoted recovery of cerebral blood flow after cerebral ischemia and reperfusion. Furthermore, we found that iptakalim significantly inhibited pericytes contraction, decreased the number of obstructed capillaries, and improved cerebral microcirculation. Using a collagen gel contraction assay, we demonstrated that cultured pericytes subjected to oxygen-glucose deprivation (OGD) cons...
Source: Acta Pharmacologica Sinica - October 26, 2021 Category: Drugs & Pharmacology Authors: Ruo-Bing Guo Yin-Feng Dong Zhi Yin Zhen-Yu Cai Jin Yang Juan Ji Yu-Qin Sun Xin-Xin Huang Teng-Fei Xue Hong Cheng Xi-Qiao Zhou Xiu-Lan Sun Source Type: research

Reinventing the Penumbra — the Emerging Clockwork of a Multi-modal Mechanistic Paradigm
AbstractThe concept of the ischemic penumbra was originally defined as the area around a necrotic stroke core and seen as the tissue at imminent risk of further damage. Today, the penumbra is generally considered as time-sensitive hypoperfused brain tissue with decreased oxygen and glucose availability, salvageable tissue as treated by intervention, and the potential target for neuroprotection in focal stroke. The original concept entailed electrical failure and potassium release but one short of neuronal cell death and was based on experimental stroke models, later confirmed in clinical imaging studies. However, even thou...
Source: Translational Stroke Research - October 11, 2022 Category: Neurology Source Type: research

Potassium-rich diet and risk of stroke: Updated meta-analysis
Abstract: Recently a few prospective population studies provided additional and heterogeneous information concerning the reported statistical associations between potassium (K) intake and stroke risk. Therefore, we updated our previous meta-analysis of K intake and risk of cerebrovascular events.Three studies were added to the previous analysis, and the results of the comparison between the event rate in the two extreme categories of K intake were used. Pooled analysis of 14 cohorts (overall 333,250 participants and 10,659 events) showed an inverse and significant association between K intake and risk of stroke (Relative ...
Source: Nutrition, Metabolism, and Cardiovascular Diseases : NMCD - April 28, 2014 Category: Nutrition Authors: L. D'Elia, C. Iannotta, P. Sabino, R. Ippolito Tags: Systematic reviews and meta-analyses Source Type: research

The role of KATP channels in cerebral ischemic stroke and diabetes.
Abstract ATP-sensitive potassium (KATP) channels are ubiquitously expressed on the plasma membrane of cells in multiple organs, including the heart, pancreas and brain. KATP channels play important roles in controlling and regulating cellular functions in response to metabolic state, which are inhibited by ATP and activated by Mg-ADP, allowing the cell to couple cellular metabolic state (ATP/ADP ratio) to electrical activity of the cell membrane. KATP channels mediate insulin secretion in pancreatic islet beta cells, and controlling vascular tone. Under pathophysiological conditions, KATP channels play cytoprotect...
Source: Acta Pharmacologica Sinica - April 19, 2018 Category: Drugs & Pharmacology Authors: Szeto V, Chen NH, Sun HS, Feng ZP Tags: Acta Pharmacol Sin Source Type: research

Increased burden of rare deleterious variants of the KCNQ1 gene in patients with large ‑vessel ischemic stroke.
Increased burden of rare deleterious variants of the KCNQ1 gene in patients with large‑vessel ischemic stroke. Mol Med Rep. 2019 Feb 25;: Authors: Janicki PK, Eyileten C, Ruiz-Velasco V, Pordzik J, Czlonkowska A, Kurkowska-Jastrzebska I, Sugino S, Imamura Kawasawa Y, Mirowska-Guzel D, Postula M Abstract The impact of rare and damaging variants in genes associated with platelet function in large‑vessel ischemic stroke (LVIS) remains unknown. The aim of this study was to investigate the contribution of some of these variants to the genetic susceptibility to LVIS in Polish patients using a deep re‑...
Source: Molecular Medicine Reports - March 4, 2019 Category: Molecular Biology Tags: Mol Med Rep Source Type: research

Interleukin-18 from neurons and microglia mediates depressive behaviors in mice with post-stroke depression.
In this study, we demonstrate that in IL-18 level in the ischemic brain significantly increased in mice with depression-like behaviors that caused by the combined use of chronic spatial restraint stress and middle cerebral artery occlusion. Interestingly, IL-18 expression was mainly found in neurons at early phase and in microglia in late phase. Injection of exogenous IL-18 in to the amygdala, but not the hippocampus or the striatum, caused severe depression-like behaviors. On the contrary, the blockage of endogenous IL-18 by IL-18 binding protein, a specific antagonist of IL-18, rescued depressive phenotypes in SIR mice. ...
Source: Brain, Behavior, and Immunity - April 5, 2020 Category: Neurology Authors: Wu D, Zhang G, Zhao C, Yang Y, Miao Z, Xu X Tags: Brain Behav Immun Source Type: research

Severe Hyperkalemia Masquerading as Acute Ischemic Stroke: A Case Report
We report a case of a 63-year-old Caucasian woman, who was admitted to Namazi Hospital, affiliated with Shiraz University of Medical Sciences (Shiraz, Iran) in August 2019. The patient suffered from left-sided weakness and slurred speech for one hour prior to admission. Initially, the patient was treated for acute ischemic stroke, and an intravenous recombinant tissue plasminogen activator (IV-rTPA) was prescribed. However, further investigations showed severe hyperkalemia. Hemiparesis and slurred speech improved significantly with appropriate management of hyperkalemia. To the best of our knowledge, this is the first case...
Source: Atherosclerosis - November 16, 2022 Category: Cardiology Authors: Zahra Bahrami Marzieh Salimi Vahid Reza Ostovan Source Type: research

Repurposing the K < sub > Ca < /sub > 3.1 Blocker Senicapoc for Ischemic Stroke
Transl Stroke Res. 2023 Apr 24. doi: 10.1007/s12975-023-01152-6. Online ahead of print.ABSTRACTSenicapoc, a small molecule inhibitor of the calcium-activated potassium channel KCa3.1, was safe and well-tolerated in clinical trials for sickle cell anemia. We previously reported proof-of-concept data suggesting that both pharmacological inhibition and genetic deletion of KCa3.1 reduces infarction and improves neurologic recovery in rodents by attenuating neuroinflammation. Here we evaluated the potential of repurposing senicapoc for ischemic stroke. In cultured microglia, senicapoc inhibited KCa3.1 currents with an IC50 of 7...
Source: Cell Research - April 24, 2023 Category: Cytology Authors: Ruth D Lee Yi-Je Chen Hai M Nguyen Latika Singh Connor J Dietrich Benjamin R Pyles Yanjun Cui Jonathan R Weinstein Heike Wulff Source Type: research

Distinct Alterations in Oxygenation, Ion Composition and Acid-Base Balance in Cerebral Collaterals During Large-Vessel Occlusion Stroke
ConclusionThese findings suggest that stroke-induced changes in oxygen supply, ion composition and acid-base balance occur and dynamically progress within penumbral areas during human cerebral ischemia and are related to acute tissue damage.
Source: Klinische Neuroradiologie - June 7, 2023 Category: Radiology Source Type: research

Exosomal circCNOT6L Regulates Astrocyte Apoptotic Signals Induced by Hypoxia Exposure Through miR99a-5p/SERPINE1 and Alleviates Ischemic Stroke Injury
In conclusion, CircCNOT6L attenuated the cell apopt otic signal of astrocytes via the miR99a-5p/SERPINE1 axis and then alleviated injury after hypoxia induced by ischemic stroke.
Source: Molecular Neurobiology - August 2, 2023 Category: Neurology Source Type: research

Higher Potassium Intake Linked to Reduced Stroke Higher Potassium Intake Linked to Reduced Stroke
Higher dietary potassium is associated with a lower risk for stroke and all-cause mortality, new data from the Women's Health Initiative show, particularly in women without hypertension. Medscape Medical News
Source: Medscape Neurology and Neurosurgery Headlines - September 5, 2014 Category: Neurology Tags: Neurology & Neurosurgery News Source Type: news

Dietary Sodium, Sodium-to-Potassium Ratio, and Risk of Stroke: A Systematic Review and Nonlinear Dose-Response Meta-Analysis
This study aimed to test the dose-response association of dietary sodium and sodium-to-potassium ratio with risk of stroke in adults aged 18 years or older.
Source: Clinical Nutrition - June 1, 2018 Category: Nutrition Authors: Ahmad Jayedi, Farnoosh Ghomashi, Mahdieh Sadat Zargar, Sakineh Shab-Bidar Source Type: research

A Novel Model for Studying Voltage-Gated Ion Channel Gene Expression during Reversible Ischemic Stroke.
In conclusion, to our knowledge, this is the first report of the successful evaluation of voltage-gated ion channel gene expression in TIA and RIND animal models. This model will aid future studies in investigating pathophysiological mechanisms, and in developing new therapeutic compounds for the treatment of TIA and RIND. PMID: 30662329 [PubMed - in process]
Source: International Journal of Medical Sciences - January 22, 2019 Category: Biomedical Science Tags: Int J Med Sci Source Type: research

Premature Stroke Secondary to Severe Hypertension Results from Liddle Syndrome Caused by a Novel SCNN1B Mutation
Conclusions:We identified a novelSCNN1B mutation (c.1849C#x3e;A) in a family affected by LS. Patients with LS, especially those with severe hypertension, should be alert for the occurrence of premature stroke. Timely diagnosis using genetic testing and tailored treatment with amiloride can help LS patients to avoid severe complications.Kidney Blood Press Res
Source: Kidney and Blood Pressure Research - July 22, 2020 Category: Urology & Nephrology Source Type: research