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Cognitive and d vitamin

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https://www.readbyqxmd.com/read/29214886/clinical-and-molecular-aspects-of-lead-toxicity-an-update
#1
Prasenjit Mitra, Shailja Sharma, Purvi Purohit, Praveen Sharma
Lead toxicity is a major public health issue in developed and developing countries. Both acute and chronic lead exposure has the potential to cause many deleterious systematic effects including hypertension, frank anemia, cognitive deficits, infertility, immune imbalances, delayed skeletal and deciduous dental development, vitamin D deficiency, and gastrointestinal effects. The underlying mechanisms for all these systemic effects have not been elucidated completely. However, the most plausible cause is free radical damage...
December 7, 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/29202779/correlates-of-poor-mental-health-in-early-pregnancy-in-obese-european-women
#2
Matteo C Sattler, Judith G M Jelsma, Annick Bogaerts, David Simmons, Gernot Desoye, Rosa Corcoy, Juan M Adelantado, Alexandra Kautzky-Willer, Jürgen Harreiter, Frans A van Assche, Roland Devlieger, Goele Jans, Sander Galjaard, David Hill, Peter Damm, Elisabeth R Mathiesen, Ewa Wender-Ozegowska, Agnieszka Zawiejska, Kinga Blumska, Annunziata Lapolla, Maria G Dalfrà, Alessandra Bertolotto, Fidelma Dunne, Dorte M Jensen, Lise Lotte T Andersen, Frank J Snoek, Mireille N M van Poppel
BACKGROUND: Depression during pregnancy is associated with higher maternal morbidity and mortality, and subsequent possible adverse effects on the cognitive, emotional and behavioral development of the child. The aim of the study was to identify maternal characteristics associated with poor mental health, in a group of overweight/obese pregnant women in nine European countries, and thus, to contribute to better recognition and intervention for maternal depression. METHODS: In this cross-sectional observational study, baseline data from early pregnancy (< 20 weeks) of the DALI (Vitamin D and Lifestyle Intervention for gestational diabetes mellitus prevention) study were analyzed...
December 4, 2017: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29188894/vitamin-d-and-the-mechanisms-circumstances-and-consequences-of-falls-in-older-adults-a-case-control-study
#3
G T Duval, P-Y Paré, J Gautier, S Walrand, M Dinomais, C Annweiler
OBJECTIVES: To determine i) whether cases of elderly fallers had lower serum 25-hydroxyvitamin D (25OHD) concentration than controls without history of falls; and ii) whether serum 25OHD concentration was associated with specific mechanisms, circumstances and consequences of falls. DESIGN: Case-control study with a 1:2 ratio. SETTING: Geriatric ward of the University Hospital of Angers, France, between February 2012 and March 2014. PARTICIPANTS: 216 inpatients (72 cases and 144 age- and gender-matched controls)...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/29188882/nutrient-intake-during-diet-induced-weight-loss-and-exercise-interventions-in-a-randomized-trial-in-older-overweight-and-obese-adults
#4
G D Miller, D P Beavers, D Hamm, S L Mihalko, S P Messier
OBJECTIVES: Dietary restriction in obese older adults undergoing weight loss may exacerbate nutrient deficiencies common in this group; the nutritional health of older adults is a factor in their quality of life, disability, and mortality. This study examined the effect of an 18-month weight loss program based in social cognitive theory incorporating partial meal replacements, on nutrient intake in older overweight and obese adults. DESIGN: The following analysis is from the Intensive Diet and Exercise for Arthritis (IDEA) trial, a single-blind, randomized controlled trial...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/29188857/assessing-the-relationship-between-vitamin-d-status-and-impairments-in-cognitive-and-physical-performance-in-older-adults-using-a-dual-task-physical-performance-test
#5
J Lopez, A Campa, J E Lewis, F G Huffman, J P Liuzzi, T Li, A H Martinez, S M Ferris, A Rasul, A Farooqi, A M Lopez Medrano, S E Atlas, E Tiozzo, J Konefal, J M Woolger
BACKGROUND: Vitamin D deficiency has been associated with an increased risk of falls in older adults. Several studies have demonstrated an association between vitamin D deficiency and gait and cognitive impairments, which are two risk factors for falls in the elderly. There is lack of research about the role of vitamin D in cognitive function in the context of mobility. OBJECTIVE: The purpose of this study was to evaluate the association between vitamin D status with the age-related changes in mobility through higher order cognitive function using a dual task physical performance test...
2017: Journal of Prevention of Alzheimer's Disease
https://www.readbyqxmd.com/read/29188854/short-term-impact-of-a-combined-nutraceutical-on-cognitive-function-perceived-stress-and-depression-in-young-elderly-with-cognitive-impairment-a-pilot-double-blind-randomized-clinical-trial
#6
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
https://www.readbyqxmd.com/read/29182708/b-vitamin-therapy-for-kidney-transplant-recipients-lowers-homocysteine-and-improves-selective-cognitive-outcomes-in-the-randomized-favorit-ancillary-cognitive-trial
#7
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
https://www.readbyqxmd.com/read/29181439/rest-activity-circadian-rhythms-and-bone-mineral-density-in-elderly-men
#8
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
https://www.readbyqxmd.com/read/29177013/vitamin-d-is-associated-with-metabotropic-but-not-neurotrophic-effects-of-exercise-in-ovariectomized-rats
#9
Parvin Babaei, Samaneh Ghorbani Shirkouhi, Rastegar Hosseini, Bahram Soltani Tehrani
Purpose: Here, we studied the beneficial effects of aerobic exercise on metabolic syndrome components, cognitive performance, brain derived neurotrophic factor (BDNF) and irisin in ovariectomized rats with different serum vitamin D (Vit D) status. Methods: Eighty female wistar rats were divided into 2 groups of sham operated (sham, n = 8), and ovariectomized (OVX, n = 72). Then OVX were divided into 9 groups of receiving combination of exercise protocol with low dose of Vit D (OVX + EXE + LD), high dose of Vit D (OVX + EXE + HD), Vit D deficiency (OVX + EXE - D), and (OVX + EXE + Veh)...
2017: Diabetology & Metabolic Syndrome
https://www.readbyqxmd.com/read/29169581/vitamin-d-status-is-associated-with-executive-function-a-decade-later-data-from-the-women-s-healthy-ageing-project
#10
Alicia M Goodwill, Stephen Campbell, Steven Simpson, Maria Bisignano, Cherie Chiang, Lorraine Dennerstein, Cassandra Szoeke
OBJECTIVES: Vitamin D deficiency has been associated with cognitive decline and dementia in older adults. However, there is a paucity of studies assessing whether this association manifests from midlife. Given the long prodromal stage of dementia, we investigated the association between midlife vitamin D and cognition 10 years later. STUDY DESIGN: 252 participants (aged 55-67 years) from the Women's Healthy Ageing Project had baseline (2002) vitamin D and neuropsychological measures assessed...
January 2018: Maturitas
https://www.readbyqxmd.com/read/29156926/-oral-feeding-and-nutritional-improvement-in-hospitals-and-residential-care-homes-industry-innovations
#11
Rosa M Ortega, Ana Isabel Jiménez Ortega, José Miguel Perea Sánchez, Esther Cuadrado Soto, Rosa M Martínez García, Ana M López Sobaler
OBJECTIVES: Inpatient and institutionalized elderly patients are population groups vulnerable from the nutritional point of view because oftheir greater risk of deficiencies and because in them the effects of imbalances are more serious than in other groups. Analyzing the possible usefulness of industry innovations offering solutions in the oral feeding of these population groups constitutes the objective of the present work. METHODS: Bibliographic search related to the topic...
October 15, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/29148401/vitamin-d-and-systemic-lupus-erythematous-a-review-of-immunological-and-clinical-aspects
#12
REVIEW
Francesca Dall'Ara, Maurizio Cutolo, Laura Andreoli, Angela Tincani, Sabrina Paolino
OBJECTIVES: To review the relationships between vitamin D status and systemic lupus erythematosus (SLE) concerning immunological, clinical aspects and possible effects of supplementation in disease modulation. METHODS: The literature was reviewed up to January 2017 for studies regarding the epidemiology, pathogenesis, immunological aspects, clinical implications and supplementation strategies. The focus was mainly on studies with implications on every day clinical practice...
November 14, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29124111/potential-implications-of-practice-effects-in-alzheimer-s-disease-prevention-trials
#13
Diane M Jacobs, M Colin Ard, David P Salmon, Douglas R Galasko, Mark W Bondi, Steven D Edland
Introduction: Practice effects (PEs) present a potential confound in clinical trials with cognitive outcomes. A single-blind placebo run-in design, with repeated cognitive outcome assessments before randomization to treatment, can minimize effects of practice on trial outcome. Methods: We investigated the potential implications of PEs in Alzheimer's disease prevention trials using placebo arm data from the Alzheimer's Disease Cooperative Study donepezil/vitamin E trial in mild cognitive impairment...
November 2017: Alzheimer's & Dementia: Translational Research & Clinical Interventions
https://www.readbyqxmd.com/read/29109736/identification-of-neuroprotective-factors-associated-with-successful-ageing-and-risk-of-cognitive-impairment-among-malaysia-older-adults
#14
Huijin Lau, Arimi Fitri Mat Ludin, Nor Fadilah Rajab, Suzana Shahar
The increase of ageing population has raised public attention on the concept of successful ageing. Studies have shown that vitamin D, telomere length, and brain-derived neurotrophic factor (BDNF) have been associated with cognitive function. Therefore, this study aimed to identify neuroprotective factors for cognitive decline in different ageing groups. A total of 300 older adults aged 60 years and above were recruited in this population based cross-sectional study. Participants were categorized into three groups: mild cognitive impairment (MCI) (n = 100), usual ageing (UA) (n = 100), and successful ageing (SA) (n = 100)...
2017: Current Gerontology and Geriatrics Research
https://www.readbyqxmd.com/read/29106548/comprehensive-geriatric-assessment-for-identifying-older-people-at-risk-of-hip-fracture-cross-sectional-study-with-comparative-group
#15
Raquel Ramírez-Martín, María Victoria Castell Alcalá, Teresa Alarcón, Rocío Queipo, Peggy Paola Ríos Germán, Ángel Otero Puime, Juan Ignacio González-Montalvo
Background: Hip fracture (HF) is by far the most common serious fragility fracture. Its care is a major challenge to all healthcare systems. Aim: To determine whether there are characteristics of older people identified via comprehensive geriatric assessment (CGA) that help identify those with an increased risk of HF. Methods: The demographic, functional, cognitive and nutritional data of a cohort of patients admitted for acute HF were compared with those of a population cohort representing community-dwelling older people in the same urban district without HF...
November 16, 2017: Family Practice
https://www.readbyqxmd.com/read/29101064/development-of-a-highly-sensitive-in-vitro-system-to-detect-and-discriminate-between-vitamin-d-receptor-agonists-and-antagonists-based-on-split-luciferase-technique
#16
Hiroki Mano, Shinichi Ikushiro, Nozomi Saito, Atsushi Kittaka, Toshiyuki Sakaki
Split-luciferase techniques are widely used to detect protein-protein interaction and bioactive small molecules including some hormones and vitamins. Previously, we successfully expressed chimeric proteins of luciferase and the ligand binding domain (LBD) of the vitamin D receptor (VDR), LucC-LBD-LucN in COS-7 cells. The LucC-LBD-LucN biosensor was named split-luciferase vitamin D biosensor (SLDB). This biosensor can detect and discriminate between VDR agonists and antagonists in mammalian cells. In this study, we established an in vitro screening system for VDR ligands using the SLDB proteins expressed in Escherichia coli (E...
October 31, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29091930/self-administered-vitamin-d-status-predictor-older-adults-are-able-to-use-a-self-questionnaire-for-evaluating-their-vitamin-d-status
#17
Cedric Annweiler, Anastasiia Kabeshova, Alix Callens, Marie-Liesse Paty, Guillaume T Duval, Michael F Holick
BACKGROUND: The 16-item Vitamin D Status Predictor (VDSP) questionnaire helps to identify, without resorting to a blood test, older adults with low vitamin D concentrations. Our objective was to determine whether a self-administered VDSP was concordant with the VDSP administered by a physician, and to examine the concordance of every single item of the VDSP. METHODS: A total of 349 older in- and outpatients (mean, 83.2±7.2years; 59% female) were consecutively recruited in the geriatric ward of the University Hospital of Angers, France...
2017: PloS One
https://www.readbyqxmd.com/read/29083449/high-serum-folate-is-associated-with-brain-atrophy-in-older-diabetic-people-with-vitamin-b12-deficiency
#18
Y Deng, D Wang, K Wang, T Kwok
Previous studies have reported the adverse cognitive effects of high folate status in older individuals with vitamin B12 (VB12) deficiency. Thus, the aim of this study was to investigate how high serum folate and VB12 deficiency could collaboratively aggravate neuronal degeneration. In total, 146 older non-demented diabetic individuals with an average age of 75 ± 3.9 were recruited. VB12 deficiency and high folate status were based on high serum methylmalonic acid (MMA) concentrations (> 0.3 μmol/L) and the serum folate concentration being in the top tertile (> 31...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/29038561/vitamin-d-and-cognitive-function-a-mendelian-randomisation-study
#19
Jane Maddock, Ang Zhou, Alana Cavadino, Elżbieta Kuźma, Yanchun Bao, Melissa C Smart, Kai-Uwe Saum, Ben Schöttker, Jorgen Engmann, Marie Kjærgaard, Ville Karhunen, Yiqiang Zhan, Terho Lehtimäki, Suvi P Rovio, Liisa Byberg, Jari Lahti, Pedro Marques-Vidal, Abhijit Sen, Laura Perna, Henrik Schirmer, Archana Singh-Manoux, Juha Auvinen, Nina Hutri-Kähönen, Mika Kähönen, Lena Kilander, Katri Räikkönen, Håkan Melhus, Erik Ingelsson, Idris Guessous, Katja E Petrovic, Helena Schmidt, Reinhold Schmidt, Peter Vollenweider, Lars Lind, Johan G Eriksson, Karl Michaëlsson, Olli T Raitakari, Sara Hägg, Nancy L Pedersen, Karl-Heinz Herzig, Marjo-Riitta Järvelin, Juha Veijola, Mika Kivimaki, Rolf Jorde, Hermann Brenner, Meena Kumari, Chris Power, David J Llewellyn, Elina Hyppönen
The causal nature of the association between hypovitaminosis D and poor cognitive function in mid- to later-life is uncertain. Using a Mendelian randomisation(MR) approach, we examined the causal relationship between 25(OH)D and cognitive function. Data came from 172,349 participants from 17 cohorts. DHCR7(rs12785878), CYP2R1 rs12794714) and their combined synthesis score were chosen to proxy 25(OH)D. Cognitive tests were standardised into global and memory scores. Analyses were stratified by 25(OH)D tertiles, sex and age...
October 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29017462/vitamin-d-deficiency-was-common-among-nursing-home-residents-and-associated-with-dementia-a-cross-sectional-study-of-545-swedish-nursing-home-residents
#20
Rebeka Arnljots, Jörgen Thorn, Marie Elm, Michael Moore, Pär-Daniel Sundvall
BACKGROUND: Residents of nursing homes may have low 25-hydroxyvitamin D (25OHD) concentrations. Associations between vitamin D and cognitive performance, dementia and susceptibility to infections are not clearly established. The aim of this study was to investigate the prevalence of vitamin D deficiency and to identify associated factors among residents of nursing homes for elderly. METHODS: In this cross-sectional study blood samples for analysis of 25OHD were collected from all participating residents of Swedish nursing homes for the elderly from January to March 2012...
October 10, 2017: BMC Geriatrics
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