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Specialty: Neurology
Drug: Folic Acid

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Total 30 results found since Jan 2013.

Prevalence and predictors of low folate levels among stroke survivors in a country without mandatory folate food fortification: Analysis of a Ghanaian sample
Vitamin supplementation with folic acid (FA) reduces hyperhomocysteinemia (Hcy), a vascular risk factor with a strong, graded, and independent association with stroke and other vascular diseases.1 Available data suggest that a 25% reduction in total plasma homocysteine level is accompanied by a 19% lower stroke risk.1,2 Evidence from clinical trials on the effect of folate supplementation on mitigation of stroke risk has however been conflicting. A synthesis of clinical trial data has shown that supplemental FA had a neutral effect on reducing vascular events in countries with a mandate for folate fortification of food, fo...
Source: Journal of Stroke and Cerebrovascular Diseases - July 20, 2023 Category: Neurology Authors: Fred Stephen Sarfo, Richard Boateng, Priscilla Abrafi Opare-Addo, Rexford Adu Gyamfi, Samuel Blay Nguah, Bruce Ovbiagele Source Type: research

Case report: Young-onset large vessel ischemic stroke due to hyperhomocysteinemia associated with the C677T polymorphism on 5,10-methylenetetrahydrofolate reductase and multi-vitamin deficiency
Hyperhomocysteinemia is an important risk factor for cerebral infarction. Herein, we report on a 30-year-old man previously diagnosed with epilepsy who presented with right hemiplegia and total aphasia. Magnetic resonance imaging showed a fronto-temporal ischemic lesion due to occlusion of the left middle cerebral artery. Clinical testing and imaging demonstrated that he had hyperhomocysteinemia induced by multiple factors including the C677T polymorphism on 5.10-methylenetetrahydrofolate reductase (MTHFR), and multiple vitamin deficiencies. The C677T polymorphism on MTHFR is closely related to hyperhomocysteinemia and fol...
Source: Frontiers in Neurology - May 18, 2023 Category: Neurology Source Type: research

Formic acid induces hypertension-related hemorrhage in hSSAO < sup > TG < /sup > in mice and human
In this study, 42 hemorrhagic patients with hypertension and hyperlipidemia and 42 age-matched healthy controls were enrolled. The contents of serum semicarbazide-sensitive amine oxidase (SSAO) and formic acid (FC, FC is a final product of SSAO through the oxidation of endogenous formaldehyde, which results from the enzymatic oxidative deamination of the SSAO substrate, methylamine) were examined in the patients after stroke. Hemorrhagic areas were quantified by computer tomography. In the animal study, hemorrhagic degree was assessed by hemotoxylin & eosin or tissue hemoglobin kits. The relationship between FC and blo...
Source: Experimental Neurology - August 21, 2022 Category: Neurology Authors: Ya-Lan Di Yan Yu Sheng-Jie Zhao Nayan Huang Xue-Chao Fei Dan-Dan Yao Li Ai Ji-Hui Lyu Rong-Qiao He Jian-Jun Li Zhi-Qian Tong Source Type: research

Folic Acid Deficiency Enhances the Tyr705 and Ser727 Phosphorylation of Mitochondrial STAT3 in In Vivo and In Vitro Models of Ischemic Stroke
AbstractIschemic stroke remains one of the most common causes of death and disability worldwide. The stroke patients with an inadequate intake of folic acid tend to have increased brain injury and poorer prognosis. However, the precise mechanisms underlying the harmful effects of folic acid deficiency (FD) in ischemic stroke is still elusive. Here, we aimed to test the hypothesis that mitochondrial localized STAT3 (mitoSTAT3) expression may be involved in the process of neuronal damage induced by FD in in vivo and in vitro models of ischemic stroke. Our results exhibited that FD increased infarct size and aggravated the da...
Source: Translational Stroke Research - October 10, 2020 Category: Neurology Source Type: research

A Novel Homozygous Non-sense Mutation in the Catalytic Domain of MTHFR Causes Severe 5,10-Methylenetetrahydrofolate Reductase Deficiency
Conclusion: We identified a novel non-sense mutation in MTHFR gene in a single Egyptian family with severe MTHFR deficiency. The present investigation is clinically important, as it adds to the growing list of MTHFR mutations, which might help in genetic counseling of families of affected children and proper genotype-phenotype correlation. Background Severe 5,10-Methylenetetrahydrofolate reductase (MTHFR; OMIM 236250) deficiency is a rare inborn error of metabolism and inherited in an autosomal recessive fashion. It is a very common disorder of folate metabolism and is clinically characterized with low plasma methion...
Source: Frontiers in Neurology - April 23, 2019 Category: Neurology Source Type: research

Folic Acid Exerts Post-Ischemic Neuroprotection In Vitro Through HIF-1 α Stabilization
AbstractThe constant failure of single-target drug therapies for ischemic stroke necessitates the development of novel pleiotropic pharmacological treatment approaches, to effectively combat the aftermath of this devastating disorder. The major objective of our study involves a multi-target drug repurposing strategy to stabilize hypoxia-inducible factor-1 α (HIF-1α) via a structure-based screening approach to simultaneously inhibit its regulatory proteins, PHD2, FIH, and pVHL. Out of 1424 Food and Drug Administration (FDA)-approved drugs that were screened, folic acid (FA) emerged as the top hit and its binding potential...
Source: Molecular Neurobiology - October 5, 2018 Category: Neurology Source Type: research

A genetic deficiency in folic acid metabolism impairs recovery after ischemic stroke.
Abstract Stroke is a leading cause of disability and death world-wide and nutrition is a modifiable risk factor for stroke. Metheylenetetrahydrofolate reductase (MTHFR) is an enzyme involved in the metabolism of folic acid, a B-vitamin. In humans, a polymorphism in MTHFR (677C→T) is linked to increased risk of stroke, but the mechanisms remain unknown. The Mthfr+/- mice mimic a phenotype described in humans at bp677. Using this mouse model, the aim of this study was to investigate the impact of MTHFR deficiency on stroke outcome. Male Mthfr+/- and wildtype littermate control mice were aged (~1.5-year-old) and tr...
Source: Experimental Neurology - July 25, 2018 Category: Neurology Authors: Jadavji NM, Emmerson JT, Shanmugalingam U, MacFarlane AJ, Willmore WG, Smith PD Tags: Exp Neurol Source Type: research

Correction to: Effect of Smoking and Folate Levels on the Efficacy of Folic Acid Therapy in Prevention of Stroke in Hypertensive Men Correction
Source: Stroke - February 26, 2018 Category: Neurology Tags: Corrections Source Type: research

Effect of Smoking and Folate Levels on the Efficacy of Folic Acid Therapy in Prevention of Stroke in Hypertensive Men Clinical Sciences
Conclusions—Baseline folate levels and smoking status can interactively affect the risk of first stroke. Our data suggest that compared with never smokers, ever smokers may require a higher dosage of folic acid to achieve a greater beneficial effect on stroke. Our findings need to be confirmed by future randomized trials.Clinical Trial Registration—URL: https://www.clinicaltrials.gov. Unique identifier: NCT00794885.
Source: Stroke - December 22, 2017 Category: Neurology Authors: Ziyi Zhou, Jianping Li, Yaren Yu, Youbao Li, Yan Zhang, Lishun Liu, Yun Song, Min Zhao, Yu Wang, Genfu Tang, Mingli He, Xiping Xu, Yefeng Cai, Qiang Dong, Delu Yin, Xiao Huang, Xiaoshu Cheng, Binyan Wang, Fan Fan Hou, Xiaobin Wang, Xianhui Qin, Yong Huo Tags: Primary Prevention, Hypertension, Treatment, Cerebrovascular Disease/Stroke Original Contributions Source Type: research

Association between percent decline in serum total homocysteine and risk of first stroke
Conclusions: Percent lowering in tHcy was significantly associated with a reduction in first stroke risk in Chinese adults with hypertension, and if further confirmed, may serve as a useful indicator for folic acid treatment efficacy on stroke prevention. Clinicaltrials.gov identifier: NCT00794885.
Source: Neurology - November 13, 2017 Category: Neurology Authors: Huang, X., Li, Y., Li, P., Li, J., Bao, H., Zhang, Y., Wang, B., Sun, N., Wang, J., He, M., Yin, D., Tang, G., Chen, Y., Cui, Y., Huang, Y., Hou, F. F., Qin, X., Huo, Y., Cheng, X. Tags: Stroke prevention, All Clinical trials ARTICLE Source Type: research

B vitamins in stroke prevention: time to reconsider
Publication date: September 2017 Source:The Lancet Neurology, Volume 16, Issue 9 Author(s): J David Spence, Qilong Yi, Graeme J Hankey B vitamin therapy lowers plasma total homocysteine concentrations, and might be a beneficial intervention for stroke prevention; however, cyanocobalamin (a form of vitamin B12) can accelerate decline in renal function and increase the risk of cardiovascular events in patients with impaired renal function. Although early trials did not show benefit in reduction of stroke, these results might have been due to harm in participants with impaired renal function. In patients with diabetic nephro...
Source: The Lancet Neurology - August 9, 2017 Category: Neurology Source Type: research