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Dementia vitamin

A David Smith, Helga Refsum, Teodoro Bottiglieri, Michael Fenech, Babak Hooshmand, Andrew McCaddon, Joshua W Miller, Irwin H Rosenberg, Rima Obeid
Identification of modifiable risk factors provides a crucial approach to the prevention of dementia. Nutritional or nutrient-dependent risk factors are especially important because dietary modifications or use of dietary supplements may lower the risk factor level. One such risk factor is a raised concentration of the biomarker plasma total homocysteine, which reflects the functional status of three B vitamins (folate, vitamins B12, B6). A group of experts reviewed literature evidence from the last 20 years...
2018: Journal of Alzheimer's Disease: JAD
A David Smith, Martin J Warren, Helga Refsum
The biosynthesis of B12 , involving up to 30 different enzyme-mediated steps, only occurs in bacteria. Thus, most eukaryotes require an external source of B12 , and yet the vitamin appears to have only two functions in eukaryotes: as a cofactor for the enzymes methionine synthase and methylmalonylCoA mutase. These two functions are crucial for normal health in humans, and in particular, the formation of methionine is essential for providing methyl groups for over 100 methylation processes. Interference with the methionine synthase reaction not only depletes the body of methyl groups but also leads to the accumulation of homocysteine, a risk factor for many diseases...
2018: Advances in Food and Nutrition Research
Burr Fong, Daniel Novak, Michael Dalley, Gregory Alfred
BACKGROUND: Deep vein thrombosis (DVT) is a common disease that is diagnosed in approximately 1 in 1000 adults annually. Extensive DVT can lead to life- or limb-threatening diagnoses such as phlegmasia cerulea dolens (PCD), phlegmasia alba dolens, and venous gangrene. PCD, also known as massive iliofemoral venous thrombosis, is rare, and a severe complication of DVT. CASE REPORT: We report a case of a 94-year-old bedridden woman with past medical history of dementia, hypertension, pulmonary embolism, DVT, and atrial fibrillation...
February 12, 2018: Journal of Emergency Medicine
Ahmad Jayedi, Ali Rashidy-Pour, Sakineh Shab-Bidar
OBJECTIVE: We aimed to test the dose-response association of serum 25(OH)D and risk of dementia and Alzheimer's disease (AD). METHODS: We performed a systematic search of PubMed and Scopus from database inception up to September 2017. Longitudinal cohort studies reporting risk estimates of incident dementia or AD in the general population, and for three or more quantitative categories of serum 25(OH)D were included. Pooled hazard ratios (HRs) were calculated using fixed-effects/random-effects models...
February 15, 2018: Nutritional Neuroscience
Kathryn Mullan, Chris R Cardwell, Bernadette McGuinness, Jayne V Woodside, Gareth J McKay
Serum antioxidants may afford neuroprotection against Alzheimer's disease (AD) via correction of the pro-oxidative imbalance but findings reported have been inconsistent. We compared the pooled mean difference in serum levels of ten dietary antioxidants between patients with AD and cognitively intact controls from 52 studies in meta-analyses using random-effects models. Patients with AD had significantly lower plasma levels of α-carotene, β-carotene, lycopene, lutein, vitamin A, C, and E, and uric acid. No significant difference was observed for plasma levels of β-cryptoxanthin and zeaxanthin...
2018: Journal of Alzheimer's Disease: JAD
Cedric Annweiler, Lise Doineau, Lucie Gerigne, Anais Provendier, Spyridon N Karras, Olivier Beauchet, Bruno Fantino, Guillaume T Duval
BACKGROUND: Older adults with hypovitaminosis D report more often subjective cognitive complaints, especially with regards to memory. This raises prospects that vitamin D may improve older adults' subjective experience of memory disorders. OBJECTIVE: To determine among older community-dwellers whether higher serum 25-hydroxyvitamin D (25OHD) concentrations were associated with fewer memory complaints, while considering the different subtypes of memory complaints...
February 1, 2018: Current Alzheimer Research
Avinash K Nehra, Jeffrey A Alexander, Conor G Loftus, Vandana Nehra
First introduced in 1989, proton pump inhibitors (PPIs) are among the most widely utilized medications worldwide, both in the ambulatory and inpatient clinical settings. The PPIs are currently approved by the US Food and Drug Administration for the management of a variety of gastrointestinal disorders including symptomatic peptic ulcer disease, gastroesophageal reflux disease, and nonulcer dyspepsia as well as for prevention of gastrointestinal bleeding in patients receiving antiplatelet therapy. PPIs inhibit gastric acid secretion, and the most commonly associated adverse effects include abdominal pain, diarrhea, and headache...
February 2018: Mayo Clinic Proceedings
Victor M Aziz, Natalie Hill, Sugandha Kumar
Aims and method To explore the use of the STOPP/START toolkit in older psychiatric in-patients with dementia. Clinical records and current drug charts were reviewed against STOPP/START criteria for all in-patients (n = 86) on six specialist dementia wards. RESULTS: Benzodiazepines, antipsychotics and opiates were most commonly prescribed inappropriately. The most common unprescribed medication groups were statins, calcium supplements and vitamin D supplements. There was an overall reduction of 7% in comorbidities and 8% in the number of prescriptions...
February 2018: BJPsych Bulletin
Gabriel Gold, Christophe Büla, Pierre Olivier Lang, Philippe Chassagne
2017 highlights benefits of prevention. Better control of cardiovascular risk reduces the incidence of dementia and monthly high-dose vitamin D the incidence of respiratory infections in nursing home. Pre-operative geriatric assessment lowers by 20% the rate of delirium after hip-fracture surgery and complications in vascular surgery. Deleterious effects are also reported. High-dose vitamin D triples the rate of falls in supplemented residents and doesn't improve gait speed in sedentary men. Widely used in cardiovascular prevention, antithrombotic therapy is associated with an astonishing risk of subdural bleeding that further increases with the number of drugs combined together...
January 10, 2018: Revue Médicale Suisse
Daniele Pastori, Kazuo Miyazawa, Gregory Y H Lip
The risk of developing dementia is increased in patients with atrial fibrillation (AF), with the incidence of both conditions increasing with aging. Patients with dementia frequently do not receiving adequate thrombo-prophylaxis, because of the inability to monitor INR and/or to achieve and maintain good compliance with anticoagulant treatment. Under-treatment is therefore an important contributor to the increased risk of ischemic stroke and mortality in this subgroup of AF patients. In newly-diagnosed patients with AF starting oral anticoagulation, the presence of cognitive impairment should be considered in addition to the calculation of the SAMe-TT2R2 score, as part of an integrated decision management pathway to choose the most appropriate oral anticoagulant [i...
2018: Journal of Alzheimer's Disease: JAD
Sunghee Kim, Bo Youl Choi, Jung Hyun Nam, Mi Kyung Kim, Dong Hoon Oh, Yoon Jung Yang
PURPOSE: The aim of this study was to examine the associations between the risk of cognitive impairment and the serum levels of folate, vitamin B12, and homocysteine (Hcy). METHODS: Subjects were persons aged 60-79 years who participated in the Yangpyeong Cohort study between 2011 and 2012. Cognitive impairment and normal subjects consisted of 100 pairs of old adults matched by age, sex, and education levels. Cognitive function was evaluated with the Korean version of the Mini-Mental State Examination for Dementia Screening (MMSE-DS)...
January 10, 2018: European Journal of Nutrition
Katie Moore, Catherine F Hughes, Mary Ward, Leane Hoey, Helene McNulty
Globally populations are ageing. By 2050, it is estimated that there will be two billion people aged 60 years or over, of which 131 million are projected to be affected by dementia, while depression is predicted to be the second leading cause of disability worldwide by 2020. Preventing or delaying the onset of these disorders should therefore be a public health priority. There is some evidence linking certain dietary patterns, particularly the Mediterranean diet, with a reduced risk of dementia and depression...
January 10, 2018: Proceedings of the Nutrition Society
Dayeon Shin, Kyung Won Lee, Mi-Hye Kim, Hung Ju Kim, Yun Sook An, Hae-Kyung Chung
Diet plays a crucial role in cognitive function. Few studies have examined the relationship between dietary patterns and cognitive functions of older adults in the Korean population. This study aimed to identify the effect of dietary patterns on the risk of mild cognitive impairment. A total of 239 participants, including 88 men and 151 women, aged 65 years and older were selected from health centers in the district of Seoul, Gyeonggi province, and Incheon, in Korea. Dietary patterns were determined using Reduced Rank Regression (RRR) methods with responses regarding vitamin B6, vitamin C, and iron intakes, based on both a one-day 24-h recall and a food frequency questionnaire...
January 9, 2018: International Journal of Environmental Research and Public Health
Carol D San Martín, Mauricio Henriquez, Carlos Chacon, Daniela P Ponce, Felipe Salech, Nicole Rogers, María Isabel Behrens
BACKGROUND: Mild cognitive impairment (MCI) has an increased rate of progression to dementia. Alterations of some metabolic factors, such as deficiency of vitamin D, are a risk factor for cognitive deterioration. Vitamin D is involved in the clearance of β-amyloid (Aβ) from the brain. We have reported that lymphocytes from Alzheimer's disease (AD) patients have an increased susceptibility to oxidative death by H2O2 exposure, but currently it is unknown if this characteristic is modifiable in vivo...
December 27, 2017: Current Alzheimer Research
Niamh Aspell, Brian Lawlor, Maria O'Sullivan
Globally, an estimated 46 million people are currently living with dementia and this figure is projected to increase 3-fold by 2050, highlighting this major public health concern and its substantial associated healthcare costs. With pharmacological treatment yet to reach fruition, the emphasis on evidence-based preventative lifestyle strategies is becoming increasingly important and several modifiable lifestyle factors have been identified that may preserve cognitive health. These include good cardiovascular health, physical activity, low alcohol intake, smoking and a healthy diet, with growing interest in vitamin D...
December 13, 2017: Proceedings of the Nutrition Society
Andrea Poscia, Sonja Milovanovic, Daniele Ignazio La Milia, Mariusz Duplaga, Marcin Grysztar, Francesco Landi, Umberto Moscato, Nicola Magnavita, Agnese Collamati, Walter Ricciardi
Background: The number of Europeans aged over 65 will double between 2010 and 2060, reaching 30% of the European population. Nutrition is emerging as a key element of healthy life since both obesity and malnutrition are established risk factors for morbidity and disability. The aim of this umbrella review (UR) is to summarize the findings of all current systematic reviews (SRs) and meta-analyzes (MAs) on the effectiveness of nutritional intervention designed to promote healthy aging in older individuals...
December 8, 2017: European Journal of Public Health
C Hooper, P De Souto Barreto, N Coley, E Caussé, P Payoux, A S Salabert, M Cesari, S Andrieu, G-L Bowman, M Weiner, B Vellas
OBJECTIVES: Elevated total plasma homocysteine is a risk factor for Alzheimer's disease (AD) and there is some evidence that omega-3 polyunsaturated fatty acids (n-3 PUFAs) can modulate the effects of homocysteine-lowering B vitamins on AD related pathologies. Hence we investigated the relationship between total plasma homocysteine and cortical β-amyloid (Aβ) in older adults at risk of dementia. The role of erythrocyte membrane n-3 PUFAs (omega 3 index) on this relationship was also explored...
2017: Journal of Nutrition, Health & Aging
A F Cicero, M Bove, A Colletti, M Rizzo, F Fogacci, M Giovannini, C Borghi
BACKGROUND: The prevalence of senile dementia is increasing worldwide, especially in the developed countries. Nevertheless, drug therapy isn't often enough to treat this condition. Researchers are evaluating the possible impact of a preventive approach, based on an improvement of lifestyle and the intake of micronutrients. Moreover, there is an increasing interest for combined nutraceuticals that can act as memory and learning enhancers, with a significant and beneficial potential on the cognitive disorders...
2017: Journal of Prevention of Alzheimer's Disease
T M Scott, G Rogers, D E Weiner, K Livingston, J Selhub, P F Jacques, I H Rosenberg, A M Troen
BACKGROUND: Objectives: Elevated plasma total homocysteine (tHcy) is associated with increased risk of cardiovascular disease, stroke and dementia. Results of clinical trials using B-vitamins to reduce the cognitive risks attributed to tHcy have been inconsistent. The high prevalence of both hyperhomocysteinemia and cognitive impairment among kidney transplant recipients makes them an important population in which to evaluate the effect of lowering homocysteine on cognitive function. We therefore evaluated whether B-vitamin therapy to lower tHcy would prevent cognitive-decline in a cohort of stable kidney transplant recipients...
2017: Journal of Prevention of Alzheimer's Disease
Tara S Rogers, Stephanie Harrison, Christine Swanson, Jane A Cauley, Elizabeth Barrett-Connor, Eric Orwoll, Katie L Stone, Nancy E Lane
Background: Disrupted rest-activity circadian rhythm (RAR) patterns have been associated with poor health outcomes (i.e. diminished cognitive function, increased risk of dementia and falls). Circadian time cues in bone influence the differentiation of osteoblasts and osteoclasts, and bone turnover markers exhibit circadian variation; relationships between bone outcomes and RAR are emerging areas of research. We evaluated associations between RAR and areal bone mineral density (aBMD) at the total hip and femoral neck in older men from the Osteoporotic Fractures in Men (MrOS) cohort...
December 2017: Bone Reports
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