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Total 1776 results found since Jan 2013.

Quick magnesium treatment fails to improve stroke outcomes, but study has silver lining
In the first study of its kind, a consortium led by UCLA physicians found that giving stroke patients intravenous magnesium within an hour of the onset of symptoms does not improve stroke outcomes.   However, the 8-year trial did find that with the help of paramedics in the field, intravenous medications can frequently be administered to stroke victims within that so-called "golden hour," during which they have the best chance to survive and avoid debilitating, long-term neurological damage.   The latter finding is a "game-changer," said Dr. Jeffrey Saver, director of the UCLA Stroke Center and a professor of ...
Source: UCLA Newsroom: Health Sciences - February 13, 2014 Category: Universities & Medical Training Source Type: news

Development, Validation of LC-MS/MS Method and Determination of Pharmacokinetic Parameters of the Stroke Neuroprotectant Neurounina-1 in Beagle Dog Plasma After Intravenous Administration
Conclusion The developed and validated method to quantify neurounina-1 in beagle dog plasma using LC-MS/MS presented sensitivity and selectivity, thus allowing the rapid and precise determination of the pharmacokinetics of this neuroprotective compound working in the low nanomolar range. Ethics Statement This study was carried out in accordance with the recommendations of the general ethical guidelines established by the Brazilian Society for Laboratory Animal Science (SBCAL). The protocol was approved by the Committee for Ethics in Animal Use – State University of Campinas (CEUA/UNICAMP, protocol n° 3340-...
Source: Frontiers in Pharmacology - April 24, 2019 Category: Drugs & Pharmacology Source Type: research

Prevalence of subclinical coronary artery disease in ischemic stroke patients.
CONCLUSIONS: Our results show that the prevalence of subclinical CAD in ischemic stroke patients was high, and that a quarter of them had high-risk CAD. Age, diabetes, stroke, and male sex were independent predictors of high-risk CAD. PMID: 24861913 [PubMed - as supplied by publisher]
Source: Journal of Cardiology - May 23, 2014 Category: Cardiology Authors: Iwasaki K, Haraoka K, Hamaguchi T, Imamura T, Kawada S, Ohno M, Kashihara K Tags: J Cardiol Source Type: research

Association between intakes of magnesium, potassium, and calcium and risk of stroke: 2 cohorts of US women and updated meta-analyses.
CONCLUSIONS: A combined mineral diet score was inversely associated with risk of stroke. High intakes of magnesium and potassium but not calcium were also significantly associated with reduced risk of stroke in women. PMID: 25948665 [PubMed - as supplied by publisher]
Source: The American Journal of Clinical Nutrition - May 6, 2015 Category: Nutrition Authors: Adebamowo SN, Spiegelman D, Willett WC, Rexrode KM Tags: Am J Clin Nutr Source Type: research

Calcium intake and the risk of stroke: an up-dated meta-analysis of prospective studies.
CONCLUSIONS: Dairy calcium intake is inversely associated with stroke incidence. There is a non-linear dose-response relationship between calcium intake and stroke risk. However, when the follow-up time is long enough, the inverse relationship is independent of dose. Additional large cohort studies are required to illustrate this relationship in detail. PMID: 26078241 [PubMed - in process]
Source: Asia Pacific Journal of Clinical Nutrition - June 18, 2015 Category: Nutrition Authors: Tian DY, Tian J, Shi CH, Song B, Wu J, Ji Y, Wang RH, Mao CY, Sun SL, Xu YM Tags: Asia Pac J Clin Nutr Source Type: research

Calcium/calmodulin ‐dependent protein kinase kinase β is neuroprotective in stroke in aged mice
This study demonstrates that CaMKK β is neuroprotective following stroke in aged mice. Inhibition of CaMKK β worsened stroke outcome by reducing expression of prosurvival factors, as well as the levels of proteins important for the integrity of blood–brain barrier, and increasing proinflammatory cytokines in the serum after stroke. Conversely, the overexpression of CaMKK β reduced infarcts and behavioral deficits in aged mice.
Source: European Journal of Neuroscience - August 16, 2016 Category: Neuroscience Authors: Lin Liu, Hui Yuan, Kyle Denton, Xue ‐jun Li, Louise McCullough, Jun Li Tags: Clinical and Translational Neuroscience Source Type: research

Calcium supplements linked to post-stroke dementia in women
Conclusion The media paint this as a troubling study for older women who take calcium to strengthen their bones. However the small size of the study (only 98 women took calcium supplements, and only 14 of those got dementia) and its observational nature mean that we cannot rely on the results. As the researchers mention, it is possible that those taking supplements were less healthy than those that didn't in some unmeasured way. Further research may improve our confidence in these results. Broken bones are not a trivial matter for older people – a broken hip can be the difference between being able to live independentl...
Source: NHS News Feed - August 18, 2016 Category: Consumer Health News Tags: Neurology Medication Older people Source Type: news

Molecular profile of the rat peri-infarct region four days after stroke: Study with MANF.
In this study, we examine the molecular profile of the peri-infarct region on post-stroke day four, time when reparative processes are ongoing. We used a multiomics approach, involving RNA sequencing, and mass spectrometry-based proteomics and metabolomics to characterize molecular changes in the peri-infarct region. We also took advantage of our previously developed method to express transgenes in the peri-infarct region where self-complementary adeno-associated virus (AAV) vectors were injected into the brain parenchyma on post-stroke day 2. We have previously used this method to show that mesencephalic astrocyte-derived...
Source: Experimental Neurology - March 26, 2020 Category: Neurology Authors: Teppo J, Vaikkinen A, Stratoulias V, Mätlik K, Anttila JE, Smolander OP, Pöhö P, Harvey BK, Kostiainen R, Airavaara M Tags: Exp Neurol Source Type: research

Preventing development of post-stroke hyperexcitability by optogenetic or pharmacological stimulation of cortical excitatory activity
Neurobiol Dis. 2023 Jul 17:106233. doi: 10.1016/j.nbd.2023.106233. Online ahead of print.ABSTRACTStroke is the most common cause of acquired epilepsy, but treatment for preventing the development of post-stroke epilepsy is still unavailable. Since stroke results in neuronal damage and death as well as initial loss of activity in the affected brain region, homeostatic plasticity may be trigged and contribute to an increase in network hyperexcitability that underlies epileptogenesis. Correspondingly, enhancing brain activity may inhibit hyperexcitability from enhanced homeostatic plasticity and prevent post-stroke epileptoge...
Source: Neurobiology of Disease - July 19, 2023 Category: Neurology Authors: Yadav Adhikari Cun-Gen Ma Zhi Chai Xiaoming Jin Source Type: research

Interventions for deliberately altering blood pressure in acute stroke.
CONCLUSIONS: There is insufficient evidence that lowering blood pressure during the acute phase of stroke improves functional outcome. It is reasonable to withhold blood pressure-lowering drugs until patients are medically and neurologically stable, and have suitable oral or enteral access, after which drugs can than be reintroduced. In people with acute stroke, CCBs, ACEI, ARA, beta blockers and NO donors each lower blood pressure while phenylephrine probably increases blood pressure. Further trials are needed to identify which people are most likely to benefit from early treatment, in particular whether treatment started...
Source: Cochrane Database of Systematic Reviews - October 28, 2014 Category: Journals (General) Authors: Bath PM, Krishnan K Tags: Cochrane Database Syst Rev Source Type: research

Association between intakes of magnesium, potassium, and calcium and risk of stroke: 2 cohorts of US women and updated meta-analyses Nutritional epidemiology and public health
Conclusions: A combined mineral diet score was inversely associated with risk of stroke. High intakes of magnesium and potassium but not calcium were also significantly associated with reduced risk of stroke in women.
Source: American Journal of Clinical Nutrition - June 1, 2015 Category: Nutrition Authors: Adebamowo, S. N., Spiegelman, D., Willett, W. C., Rexrode, K. M. Tags: Nutritional Epidemiology Research Articles Nutritional epidemiology and public health Source Type: research

Comparative Effectiveness of Blood Pressure-lowering Drugs in Patients who have Already Suffered From Stroke: Traditional and Bayesian Network Meta-analysis of Randomized Trials
Abstract: Hypertension is the most important risk factor for stroke and stroke recurrence. However, the preferred blood pressure (BP)-lowering drug class for patients who have suffered from a stroke has yet to be determined. To investigate the relative effects of BP-lowering therapies [angiotensin-converting enzyme inhibitor (ACEI), angiotensin receptor blockers (ARB), β blockers, calcium channel blockers (CCBs), diuretics, and combinations of these drugs] in patients with a prior stroke history, we performed a systematic review and meta-analysis using both traditional frequentist and Bayesian random-effects models and m...
Source: Medicine - April 1, 2016 Category: Internal Medicine Tags: Research Article: Systematic Reviewand Meta-Analysis Source Type: research

Micro RNA 181c-5p: a promising target for post-stroke recovery in socially isolated mice
Publication date: Available online 10 November 2019Source: Neuroscience LettersAuthor(s): Maria Antony, Victoria Scranton, Pranay Srivastava, Rajkumar VermaAbstractDysregulation of microRNAs (miRNAs) has been tied to several neurological disorders, including ischemic stroke. It has also been established that social environments can modulate miRNA profiles. We have previously shown that post-stroke social isolation (SI) is linked to poor stroke outcomes and that miR-181c-5p emerged as one of few lead miRNAs that was downregulated in both stroke and SI. Therefore, in this study we examined the potential role of miR-181c-5p m...
Source: Neuroscience Letters - November 11, 2019 Category: Neuroscience Source Type: research

Association between serum calcium levels and first stroke: A community-based nested case-control study
ConclusionsOur results suggested a U-shaped association between serum calcium and first stroke; both low and high serum calcium levels were associated with an increased risk of the first stroke in the Chinese population.
Source: Frontiers in Neurology - August 5, 2022 Category: Neurology Source Type: research