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Dementia vitamin

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https://www.readbyqxmd.com/read/27898035/dietary-b-vitamins-and-a-10-year-risk-of-dementia-in-older-persons
#1
Sophie Lefèvre-Arbogast, Catherine Féart, Jean-François Dartigues, Catherine Helmer, Luc Letenneur, Cécilia Samieri
B vitamins may lower the risk of dementia, yet epidemiological findings, mostly from countries with folic acid fortification, have remained inconsistent. We evaluated in a large French cohort of older persons the associations between dietary B vitamins and long-term incident dementia. We included 1321 participants from the Three-City Study who completed a 24 h dietary recall, were free of dementia at the time of diet assessment, and were followed for an average of 7.4 years. In Cox proportional hazards models adjusted for multiple potential confounders, including overall diet quality, higher intake of folate was inversely associated with the risk of dementia (p for trend = 0...
November 26, 2016: Nutrients
https://www.readbyqxmd.com/read/27849379/lower-serum-25-hydroxyvitamin-d-is-associated-with-obesity-but-not-common-chronic-conditions-an-observational-study-of-african-american-and-caucasian-male-veterans
#2
Jacqueline L Cartier, Subhash C Kukreja, Elena Barengolts
Objective The study examined whether vitamin D insufficiency is a predictor of prevalent and/or incident common chronic conditions in African American men (AAM) and Caucasian men (CAM). Methods 1,017 men were recruited at an urban VA medical center and followed prospectively for a mean of 5.4 years. Prevalent and incident chronic conditions evaluated were: obesity, type 2 diabetes (T2D), cancer, depression, dementia, and cardiovascular disease (CVD, including coronary artery disease [CAD], cerebrovascular accident [CVA], and congestive heart failure [CHF])...
November 16, 2016: Endocrine Practice
https://www.readbyqxmd.com/read/27825907/thiamine-and-benfotiamine-improve-cognition-and-ameliorate-gsk-3%C3%AE-associated-stress-induced-behaviours-in-mice
#3
Nataliia Markova, Nataliia Bazhenova, Daniel C Anthony, Julie Vignisse, Andrey Svistunov, Klaus-Peter Lesch, Lucien Bettendorff, Tatyana Strekalova
Thiamine (vitamin B1) deficiency in the brain has been implicated in the development of dementia and symptoms of depression. Indirect evidence suggests that thiamine may contribute to these pathologies by controlling the activities of glycogen synthase kinase (GSK)-3β. While decreased GSK-3β activity appears to impair memory, increased GSK-3β activity is associated with the distressed/depressed state. However, hitherto direct evidence for the effects of thiamine on GSK-3β function has not been reported...
November 4, 2016: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/27823800/a-randomized-placebo-controlled-trial-of-vitamin-b12-supplementation-to-prevent-cognitive-decline-in-older-diabetic-people-with-borderline-low-serum-vitamin-b12
#4
Timothy Kwok, Jenny Lee, Ronald C Ma, Samuel Y Wong, Kenny Kung, Augustine Lam, C S Ho, Vivian Lee, John Harrison, Linda Lam
BACKGROUND & AIMS: Older diabetic people are at risk of cognitive decline. Vitamin B12 deficiency in older people is associated with cognitive impairment and Alzheimer's disease. Vitamin B12 deficiency may therefore contribute to cognitive decline in older diabetic people. We therefore performed a randomized placebo-controlled trial of vitamin B12 supplementation to prevent cognitive decline in older diabetic people with mild vitamin B12 deficiency. METHODS: 271 diabetic non-demented outpatients aged 70 years or older with plasma vitamin B12 150-300 pmol/L in outpatient clinics were randomly assigned to take either methylcobalamin 1000 μg or two similar looking placebo tablets once daily for 27 months...
October 27, 2016: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/27801937/self-reported-sleep-apnea-and-dementia-risk-findings-from-the-prevention-of-alzheimer-s-disease-with-vitamin-e-and-selenium-trial
#5
Xiuhua Ding, Richard J Kryscio, Joshua Turner, Gregory A Jicha, Gregory Cooper, Allison Caban-Holt, Frederick A Schmitt, Erin L Abner
OBJECTIVES: To investigate the association between baseline sleep apnea and risk of incident dementia in the Prevention of Alzheimer's Disease with Vitamin E and Selenium (PREADViSE) study and to explore whether the association depends on apolipoprotein E (APOE) ɛ4 allele status. DESIGN: Secondary analysis based on data collected during PREADViSE. SETTING: Participants were assessed at 128 local clinical study sites during the clinical trial phase and later were followed by telephone from a centralized location...
November 1, 2016: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/27792188/the-impact-of-vitamin-e-and-other-fat-soluble-vitamins-on-alzheimer%C3%A2-s-disease
#6
REVIEW
Marcus O W Grimm, Janine Mett, Tobias Hartmann
Alzheimer's disease (AD) is the most common cause of dementia in the elderly population, currently affecting 46 million people worldwide. Histopathologically, the disease is characterized by the occurrence of extracellular amyloid plaques composed of aggregated amyloid-β (Aβ) peptides and intracellular neurofibrillary tangles containing the microtubule-associated protein tau. Aβ peptides are derived from the sequential processing of the amyloid precursor protein (APP) by enzymes called secretases, which are strongly influenced by the lipid environment...
October 26, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27767993/effect-size-analyses-of-souvenaid-in-patients-with-alzheimer-s-disease
#7
Jeffrey Cummings, Philip Scheltens, Ian McKeith, Rafael Blesa, John E Harrison, Paulo H F Bertolucci, Kenneth Rockwood, David Wilkinson, Wouter Wijker, David A Bennett, Raj C Shah
BACKGROUND: Souvenaid® (uridine monophosphate, docosahexaenoic acid, eicosapentaenoic acid, choline, phospholipids, folic acid, vitamins B12, B6, C, and E, and selenium), was developed to support the formation and function of neuronal membranes. OBJECTIVE: To determine effect sizes observed in clinical trials of Souvenaid and to calculate the number needed to treat to show benefit or harm. METHODS: Data from all three reported randomized controlled trials of Souvenaid in Alzheimer's disease (AD) dementia (Souvenir I, Souvenir II, and S-Connect) and an open-label extension study were included in analyses of effect size for cognitive, functional, and behavioral outcomes...
October 20, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27760199/methylfolate-trap-promotes-bacterial-thymineless-death-by-sulfa-drugs
#8
Marissa B Guzzo, Hoa T Nguyen, Thanh H Pham, Monika Wyszczelska-Rokiel, Hieronim Jakubowski, Kerstin A Wolff, Sam Ogwang, Joseph L Timpona, Soumya Gogula, Michael R Jacobs, Markus Ruetz, Bernhard Kräutler, Donald W Jacobsen, Guo-Fang Zhang, Liem Nguyen
The methylfolate trap, a metabolic blockage associated with anemia, neural tube defects, Alzheimer's dementia, cardiovascular diseases, and cancer, was discovered in the 1960s, linking the metabolism of folate, vitamin B12, methionine and homocysteine. However, the existence or physiological significance of this phenomenon has been unknown in bacteria, which synthesize folate de novo. Here we identify the methylfolate trap as a novel determinant of the bacterial intrinsic death by sulfonamides, antibiotics that block de novo folate synthesis...
October 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27751373/factors-associated-with-frontotemporal-dementia-in-china-a-cross-sectional-study
#9
Hui Chen, Shuai Liu, Miaoyan Zheng, Lu Ji, Tianfeng Wu, Guowei Huang, Yong Ji
BACKGROUND AND AIMS: There is a growing focus on frontotemporal dementia (FTD). However, compared with other major dementias, very little is known about the factors associated with FTD. The present study evaluated candidate factors associated with FTD in the Chinese population. METHODS: One hundred eight elderly patients (36 diagnosed with FTD and 72 controls) of the Neurology Central Hospital of Tianjin (China), were diagnosed by neurologists, and recruited for the study between November 2011 and November 2014...
July 2016: Archives of Medical Research
https://www.readbyqxmd.com/read/27729011/environmental-risk-factors-for-dementia-a-systematic-review
#10
Lewis O J Killin, John M Starr, Ivy J Shiue, Tom C Russ
BACKGROUND: Dementia risk reduction is a major and growing public health priority. While certain modifiable risk factors for dementia have been identified, there remains a substantial proportion of unexplained risk. There is evidence that environmental risk factors may explain some of this risk. Thus, we present the first comprehensive systematic review of environmental risk factors for dementia. METHODS: We searched the PubMed and Web of Science databases from their inception to January 2016, bibliographies of review articles, and articles related to publically available environmental data...
October 12, 2016: BMC Geriatrics
https://www.readbyqxmd.com/read/27716672/tocotrienol-rich-fraction-modulates-amyloid-pathology-and-improves-cognitive-function-in-a%C3%AE-pp-ps1-mice
#11
Nor Faeizah Ibrahim, Daijiro Yanagisawa, Lina Wati Durani, Hamizah Shahirah Hamezah, Hanafi Ahmad Damanhuri, Wan Zurinah Wan Ngah, Mayumi Tsuji, Yuji Kiuchi, Kenjiro Ono, Ikuo Tooyama
Alzheimer's disease (AD) is the most common cause of dementia. The cardinal neuropathological characteristic of AD is the accumulation of amyloid-β (Aβ) into extracellular plaques that ultimately disrupt neuronal function and lead to neurodegeneration. One possible therapeutic strategy therefore is to prevent Aβ aggregation. Previous studies have suggested that vitamin E analogs slow AD progression in humans. In the present study, we investigated the effects of the tocotrienol-rich fraction (TRF), a mixture of vitamin E analogs from palm oil, on amyloid pathology in vitro and in vivo...
October 1, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27716664/normal-vitamin-levels-and-nutritional-indices-in-alzheimer-s-disease-patients-with-mild-cognitive-impairment-or-dementia-with-normal-body-mass-indexes
#12
Ingun Ulstein, Thomas Bøhmer
Evidence supports an association between vitamin deficiencies and cognitive decline in Alzheimer's disease (AD). If vitamin deficiencies are causative for AD development, they should be detectable during very early stages of AD. Here we investigated nutritional factors among home-living patients diagnosed with mild cognitive impairment (MCI) or mild dementia due to AD, compared to healthy controls. Our study included 73 patients with AD (25 with MCI, 48 with dementia) and 63 cognitively intact age-matched controls...
October 5, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27708183/use-of-vitamin-e-and-c-supplements-for-the-prevention-of-cognitive-decline
#13
Luta Luse Basambombo, Pierre-Hugues Carmichael, Sharlène Côté, Danielle Laurin
BACKGROUND: There are few studies of the association between the use of antioxidant vitamin supplements and the risk of Alzheimer's disease (AD). Cognitive decline is generally viewed as part of the continuum between normal aging and AD. OBJECTIVE: To evaluate whether the use of vitamin E and C supplements is associated with reduced risks of cognitive impairment, not dementia (CIND), AD, or all-cause dementia in a representative sample of older persons ≥65 years old...
October 4, 2016: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/27651008/vitamin-d-and-cognition-in-older-adults-international-consensus-guidelines
#14
Cédric Annweiler, Erdinç Dursun, Francois Féron, Duygu Gezen-Ak, Allan V Kalueff, Thomas Littlejohns, David Llewellyn, Pascal Millet, Tammy Scott, Katherine L Tucker, Selma Yilmazer, Olivier Beauchet
Hypovitaminosis D, a common condition in older adults, is associated with brain changes and dementia. Given the fast growing contribution of literature in this research field, clear guidance is needed for clinicians and researchers. International experts met at the invitational summit on "Vitamin D and cognition in older adults" in Boston, MA, July 2013. Based upon literature and expert opinion, the task force focused on key questions on the role of vitamin D in Alzheimer disease and related disorders. Each question was discussed and voted using a Delphi-like approach...
September 1, 2016: Gériatrie et Psychologie Neuropsychiatrie du Vieillissement
https://www.readbyqxmd.com/read/27647168/evolving-antithrombotic-treatment-patterns-for-patients-with-newly-diagnosed-atrial-fibrillation
#15
A John Camm, Gabriele Accetta, Giuseppe Ambrosio, Dan Atar, Jean-Pierre Bassand, Eivind Berge, Frank Cools, David A Fitzmaurice, Samuel Z Goldhaber, Shinya Goto, Sylvia Haas, Gloria Kayani, Yukihiro Koretsune, Lorenzo G Mantovani, Frank Misselwitz, Seil Oh, Alexander G G Turpie, Freek W A Verheugt, Ajay K Kakkar
OBJECTIVE: We studied evolving antithrombotic therapy patterns in patients with newly diagnosed non-valvular atrial fibrillation (AF) and ≥1 additional stroke risk factor between 2010 and 2015. METHODS: 39 670 patients were prospectively enrolled in four sequential cohorts in the Global Anticoagulant Registry in the FIELD-Atrial Fibrillation (GARFIELD-AF): cohort C1 (2010-2011), n=5500; C2 (2011-2013), n=11 662; C3 (2013-2014), n=11 462; C4 (2014-2015), n=11 046...
September 19, 2016: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/27643909/dementia
#16
Peter A Ljubenkov, Michael D Geschwind
Dementia often is defined as a progressive cognitive disturbance leading to a loss of independent function. Most clinicians are familiar with the typical pattern of amnestic Alzheimer's disease, the most common neurodegenerative presentation of dementia. Atypical dementia presentations, including atypical Alzheimer's variants, however, may pose a diagnostic challenge for even experienced clinicians. In this article the authors discuss clinical "pearls" for the diagnosis of various neurodegenerative dementia syndromes...
August 2016: Seminars in Neurology
https://www.readbyqxmd.com/read/27631101/selenium-attenuates-apoptosis-inflammation-and-oxidative-stress-in-the-blood-and-brain-of-aged-rats-with-scopolamine-induced-dementia
#17
Kadir Demirci, Mustafa Nazıroğlu, İshak Suat Övey, Hasan Balaban
A potent antioxidant, selenium might modulate dementia-induced progression of brain and blood oxidative and apoptotic injuries. The present study explores whether selenium protects against experimental dementia (scopolamine, SCOP)-induced brain, and blood oxidative stress, apoptosis levels, and cytokine production in rats. Thirty-two rats were equally divided into four groups. The first group was used as an untreated control. The second group was treated with SCOP to induce dementia. The third and fourth groups received 1...
September 15, 2016: Metabolic Brain Disease
https://www.readbyqxmd.com/read/27607343/gastric-acid-secretion
#18
Mitchell L Schubert
PURPOSE OF REVIEW: The present review summarizes the past year's literature, both clinical and basic science, regarding neuroendocrine and intracellular regulation of gastric acid secretion and proper use of antisecretory medications. RECENT FINDINGS: Gastric acid kills microorganisms, modulates the gut microbiome, assists in digestion of protein, and facilitates absorption of iron, calcium, and vitamin B12. The main stimulants of acid secretion are gastrin, released from antral G cells; histamine, released from oxyntic enterochromaffin-like cells; and acetylcholine, released from antral and oxyntic intramural neurons...
November 2016: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/27583864/digit-symbol-substitution-test-score-and-hyperhomocysteinemia-in-older-adults
#19
Wen-Chuin Hsu, Yi-Chuan Chu, Hon-Chung Fung, Yau-Yau Wai, Jiun-Jie Wang, Jiann-Der Lee, Yi-Chun Chen
Mounting evidence shows that hyperhomocysteinemia is a risk factor for cognitive decline. This study enrolled subjects with normal serum levels of B12 and folate and performed thorough neuropsychological assessments to illuminate the independent role of homocysteine on cognitive functions.Participants between ages 50 and 85 were enrolled with Modified Hachinski ischemic score of <4, adequate visual and auditory acuity to allow neuropsychological testing, and good general health. Subjects with cognitive impairment resulting from secondary causes were excluded...
August 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27574726/cognitive-decline-a-vitamin-b-perspective
#20
Kathleen Mikkelsen, Lily Stojanovska, Kathy Tangalakis, Marijan Bosevski, Vasso Apostolopoulos
Cognitive decline is one of the major causes of disability in older people. A high level of homocysteine, a byproduct of vitamin B, has been linked to brain atrophy, which itself is a precursor to cognitive decline leading to dementia and Alzheimer's disease. In addition, a low level of vitamin B is often noted in patients with dementia and Alzheimer's disease and its supplementation has been shown to improve memory and to slow the progress of brain atrophy. This information may aid in the use of vitamin B as a preventative measure against severe cognitive decline, and thus reduce the onset of conditions such as dementia and Alzheimer's disease...
November 2016: Maturitas
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