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Effect of B Vitamins and Lowering Homocysteine on Cognitive Impairment in Patients With Previous Stroke or Transient Ischemic Attack: A Prespecified Secondary Analysis of a Randomized, Placebo-Controlled Trial and Meta-Analysis Clinical Sciences
Conclusions— Daily supplementation with folic acid, vitamin B6, and vitamin B12 to a self-selected clinical trial cohort of cognitively unimpaired patients with previous stroke or transient ischemic attack lowered mean tHcy but had no effect on the incidence of cognitive impairment or cognitive decline, as measured by the MMSE, during a median of 2.8 years. Clinical Trial Registration— URL: http://www.controlled-trials.com. Unique identifier: ISRCTN74743444; URL: http://www.clinicaltrials.gov. Unique identifier: NCT00097669.
Source: Stroke - July 22, 2013 Category: Neurology Authors: Hankey, G. J., Ford, A. H., Yi, Q., Eikelboom, J. W., Lees, K. R., Chen, C., Xavier, D., Navarro, J. C., Ranawaka, U. K., Uddin, W., Ricci, S., Gommans, J., Schmidt, R., Almeida, O. P., van Bockxmeer, F. M., on Behalf of the VITATOPS Trial Study Group Tags: Other Treatment, Other Stroke Treatment - Medical Clinical Sciences Source Type: research

The China Stroke Secondary Prevention Trial (CSSPT) protocol: a double‐blinded, randomized, controlled trial of combined folic acid and B vitamins for secondary prevention of stroke
DiscussionThis is the first multicenter randomized trial of secondary prevention for ischemic stroke in a Chinese population with a higher homocysteine level but without folate food fortification.
Source: International Journal of Stroke - March 12, 2013 Category: Neurology Authors: Xuedong Liu, Ming Shi, Feng Xia, Junliang Han, Zhirong Liu, Bo Wang, Fang Yang, Li Li, Songdi Wu, Ling Wang, Nan Liu, Yali Lv, Gang Zhao Tags: Protocols Source Type: research

Folic acid, a B vitamin, lowers stroke risk in people with high blood pressure
If you’re among the one in three American adults with high blood pressure, be sure you’re getting plenty of the B vitamin known as folate. Doing so may lower your odds of having a stroke, an often disabling or deadly event linked to high blood pressure, a new study suggests. Folate occurs naturally in many foods, but especially green leafy vegetables, beans, and citrus fruits. Here in the United States, add to the list most grain products, including wheat flour, cornmeal, pasta, and rice. They are fortified with the synthetic version of folate, known as folic acid. That’s not the case in many countries ar...
Source: New Harvard Health Information - March 18, 2015 Category: Consumer Health News Authors: Julie Corliss Tags: Drugs and Supplements Hypertension and Stroke high blood pressure Source Type: news

Meta-analysis of folic acid efficacy trials in stroke prevention: Insight into effect modifiers
Conclusions: Folic acid supplementation could reduce the stroke risk in regions without folic acid fortification, particularly in trials using a relatively low dosage of folic acid and with low vitamin B12 levels.
Source: Neurology - May 8, 2017 Category: Neurology Authors: Zhao, M., Wu, G., Li, Y., Wang, X., Hou, F. F., Xu, X., Qin, X., Cai, Y. Tags: Stroke prevention, All Cerebrovascular disease/Stroke, Clinical trials Randomized controlled (CONSORT agreement), All epidemiology ARTICLE Source Type: research

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

B-vitamin and choline supplementation increases neuroplasticity and recovery after stroke.
Abstract Folates are B-vitamins that play an important role in brain function. Dietary and genetic deficiencies in folate metabolism result in elevated levels of homocysteine which have been linked to increased risk of developing a stroke. Reducing levels of homocysteine before or after a stroke through B-vitamin supplementation has been a focus of many clinical studies, however, the results remain inconsistent. Animal model systems provide a powerful mechanism to study and understand functional impact and mechanisms through which supplementation affects stroke recovery. The aim of this study was to understand the...
Source: Neurobiology of Disease - April 7, 2017 Category: Neurology Authors: Jadavji NM, Emmerson JT, MacFarlane AJ, Willmore WG, Smith PD Tags: Neurobiol Dis Source Type: research

Incident Cancer in a Cohort of 3,247 Cancer Diagnosis Free Ischemic Stroke Patients
Conclusions: The annual rate of age-adjusted cancer incidence was higher among ischemic stroke patients compared with those in the general population. The odds of mortality were three folds higher among stroke survivors who developed incident cancer.Cerebrovasc Dis 2015;39:262-268
Source: Cerebrovascular Diseases - April 7, 2015 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

Association between hyperhomocysteinemia and stroke with atherosclerosis and small artery occlusion depends on homocysteine metabolism-related vitamin levels in Chinese patients with normal renal function
This study was conducted to investigate the role of different homocysteine metabolism-related vitamin (HMRV) levels in the correlation between hyperhomocysteinemia (HHCY) and ischemic stroke (IS) subtypes. Three hundred and forty-eight IS patients manifesting different vascular subtypes were subclassified on the basis of HMRV deficiencies. Correlation between HHCY and IS subtypes was investigated in all the subgroups. In this study, HHCY was significantly correlated with the IS subtypes in large artery atherosclerosis (OR 1.126, 95%CI: 1.051  ~ 1.206,P = 0.001) and small artery occlusion (OR 1.105, 95%CI: 1.023 ~ 1.1...
Source: Metabolic Brain Disease - March 5, 2017 Category: Neurology Source Type: research

Incident Cancer in Stroke Survivors: Analysis of the Vitamin Intervention for Stroke Prevention (VISP) Trial (P5.114)
Conclusions: Incident cancer is not uncommon and is associated with lower survival among stroke survivors.Disclosure: Dr. Suri has nothing to disclose. Dr. Malik has nothing to disclose. Dr. Rodriguez has nothing to disclose. Dr. Nickles has nothing to disclose. Dr. Qureshi has nothing to disclose.
Source: Neurology - April 9, 2014 Category: Neurology Authors: Suri, M., Adil, M., Rodriguez, G., Chaudhry, S., Qureshi, A. Tags: Cerebrovascular Disease and Interventional Neurology: Epidemiology Source Type: research

Relationship Between Nutritional Factors and Hip Bone Density in Individuals with Chronic Stroke
AbstractThe aim of this study was to investigate the relationship between dietary habits and hip bone health in community-dwelling individuals with chronic stroke. The usual dietary intake of 94 individuals with chronic stroke (30 women, mean age: 59.0  years) was assessed by a 3-day food record within a single week. Dual-energy X-ray absorptiometry was used to measure bone mineral density (BMD) at both hips. The results showed that low hip bone mass was found in 59 and 50 of the participants on the affected and unaffected side, respectively. The mean hip BMD was also significantly lower on the affected side than the unaf...
Source: Calcified Tissue International - April 17, 2017 Category: Orthopaedics 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

A specific dietary intervention to restore brain structure and function after ischemic stroke
Occlusion of the middle cerebral artery (MCAo) is among the most common causes of ischemic stroke in humans. Cerebral ischemia leads to brain lesions existing of an irreversibly injured core and an ischemic boundary zone, the penumbra, containing damaged but potentially salvageable tissue. Using a transient occlusion (30 min) of the middle cerebral artery (tMCAo) mouse model in this cross-institutional study we investigated the neurorestorative efficacy of a dietary approach (Fortasyn) comprising docosahexaenoic acid, eicosapentaenoic acid, uridine, choline, phospholipids, folic acid, vitamins B12, B6, C, and E, and seleni...
Source: Theranostics - September 12, 2017 Category: Molecular Biology Authors: Maximilian Wiesmann, Bastian Zinnhardt, Dirk Reinhardt, Sarah Eligehausen, Lydia Wachsmuth, Sven Hermann, Pieter J Dederen, Marloes Hellwich, Michael T Kuhlmann, Laus M Broersen, Arend Heerschap, Andreas H Jacobs, Amanda J Kiliaan Tags: Research Paper Source Type: research

Review: Folic acid may reduce risk for CVD and stroke, and B-vitamin complex may reduce risk for stroke.
PMID: 30326088 [PubMed - in process]
Source: Annals of Internal Medicine - October 16, 2018 Category: Internal Medicine Authors: Aung K, Htay T Tags: Ann Intern Med Source Type: research

Influence of renal function on the association between homocysteine level and risk of ischemic stroke.
We examined whether the association between total homocysteine (tHCY) and risk of ischemic stroke (IS) varies depending on renal function to gain insight into why tHCY-lowering vitamins do not reduce the incidence of cardiovascular disease in clinical trials. We analyzed data from 542 IS patients with large artery atherosclerosis (LAA) or small artery occlusion (SAO) after stratification by estimated glomerular filtration rate (eGFR) to evaluate renal function. We found that tHCY level was positively associated with the occurrence of IS in both LAA (OR: 1.159, 95% CI: 1.074-1.252, P<0.001) and SAO (OR: 1.143, 95% CI: 1....
Source: American Journal of Translational Research - November 10, 2017 Category: Research Tags: Am J Transl Res Source Type: research

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