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Vitamin D older adults

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https://www.readbyqxmd.com/read/28182265/long-term-metformin-therapy-and-monitoring-for-vitamin-b12-deficiency-among-older-veterans
#1
Vijaya Kancherla, John L Elliott, Birju B Patel, N Wilson Holland, Theodore M Johnson, Anjali Khakharia, Lawrence S Phillips, Godfrey P Oakley, Camille P Vaughan
OBJECTIVE: To examine the association between long-term metformin therapy and serum vitamin B12 monitoring. DESIGN: Retrospective cohort study. SETTING: A single Veterans Affairs Medical Center (VAMC), 2002-2012. PARTICIPANTS: Veterans 50 years or older with either type 2 diabetes and long-term metformin therapy (n = 3,687) or without diabetes and no prescription for metformin (n = 13,258). MEASUREMENTS: We determined diabetes status from outpatient visits, and defined long-term metformin therapy as a prescription ≥500 mg/d for at least six consecutive months...
February 9, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28182163/which-is-preferable-for-orthostatic-hypotension-diagnosis-in-older-adults-active-standing-test-or-head-up-tilt-table-test
#2
Ali Ekrem Aydin, Pinar Soysal, Ahmet Turan Isik
BACKGROUND: Correct evaluation of orthostatic hypotension (OH) is crucial in geriatric practice, since OH is associated with mortality and morbidity. The study aimed to determine the most appropriate method for measuring blood pressure in transition from supine to upright position in order to diagnose OH in older adults. METHODS: Active standing test (AST) and head-up tilt table (HUT) test as well as comprehensive geriatric assessment (CGA), including mini-mental state examination or the cognitive state test, mini-nutritional assessment, basic and instrumental activities of daily living, and Tinetti performance-oriented mobility assessment indexes, were performed in 290 geriatric patients...
2017: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/28179486/serum-25-hydroxyvitamin-d-has-a-modest-positive-association-with-leukocyte-telomere-length-in-middle-aged-us-adults
#3
Julia Beilfuss, Carlos A Camargo, Elena Kamycheva
Background: Vitamin D deficiency has been linked to all-cause mortality and cancer. However, the biological plausibility of these associations is not well established. Leukocyte telomere length (LTL) shortening is associated with aging and is a hallmark of genomic instability and carcinogenesis.Objective: We aimed to investigate the association between serum 25-hydroxyvitamin D [25(OH)D] concentrations and LTL in the general US population.Methods: We analyzed data from the US NHANES 2001-2002. The study population comprised 1542 younger adults (aged 20-39 y), 1336 middle-aged adults (aged 40-59 y), and 1382 older adults (aged ≥60 y)...
February 8, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28174253/vitamin-d-induces-myogenic-differentiation-in-skeletal-muscle-derived-stem-cells
#4
Melissa Braga, Zena Simmons, Keith C Norris, Monica G Ferrini, Jorge N Artaza
Skeletal muscle wasting is a serious disorder associated with health conditions such as aging, chronic kidney disease, and AIDS. Vitamin D is most widely recognized for its regulation of calcium and phosphate homeostasis in relation to bone development and maintenance. Recently, Vitamin D supplementation has been shown to improve muscle performance and reduce the risk of falls in Vitamin D deficient older adults. However, little is known of the underlying molecular mechanism(s) or the role it plays in myogenic differentiation...
February 7, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28173916/effect-of-mineral-and-bone-metabolism-on-restless-legs-syndrome-in-hemodialysis-patients
#5
Precil D M M Neves, Fabiana G Graciolli, Ivone B Oliveira, Ramaiane A Bridi, Rosa M A Moysés, Rosilene M Elias
STUDY OBJECTIVES: Restless legs syndrome (RLS) is a highly prevalent sleep disease among patients on hemodialysis. The physiopathology is still unclear, and may be multifactorial. Because of the association between iron metabolism and chronic kidney disease-mineral and bone disorders (CKD-MBD), we hypothesized that both factors would be associated with RLS. METHODS: We have evaluated hemodialysis patients, in a face-to-face interview for the diagnosis and severity of RLS, as measured by the International Restless Legs Syndrome Study Group...
January 15, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28159728/protocol-for-a-24-week-randomized-controlled-study-of-once-daily-oral-dose-of-flax-lignan-to-healthy-older-adults
#6
Jane Alcorn, Susan Whiting, Navita Viveky, Yunyun Di, Kerry Mansell, Sharyle Fowler, Lilian Thorpe, Ahmed Almousa, Pui Chi Cheng, Jennifer Jones, Jennifer Billinsky, Thomas Hadjistavropoulos
BACKGROUND: Increased oxidative stress and inflammation are associated with aging, and contribute to an increased risk of chronic disease in older adults. Flaxseed lignans demonstrate antioxidant and anti-inflammatory activity, but their ability to reduce oxidative stress and inflammation markers in older adult populations has received limited investigation. OBJECTIVE: This is a chronic intervention trial of community-dwelling healthy older adults to examine the effects of a flaxseed lignan (secoisolariciresinol diglucoside; SDG) enriched supplement (BeneFlax) compared to a placebo...
February 3, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28146127/association-between-obesity-and-serum-25-oh-d-concentrations-in-older-mexican-adults
#7
Victoria G Rontoyanni, Jaqueline C Avila, Sapna Kaul, Rebeca Wong, Sreenivas P Veeranki
BACKGROUND: Vitamin D is essential for maintaining bone mineralization and calcium homeostasis, and prevents falls and fractures in older adults. Mexico is undergoing an epidemiologic and demographic transition with increasing obesity rates. The study's aim was to determine the association of obesity with serum 25-hydroxyvitamin D [25(OH)D] concentrations in older Mexican adults. METHODS: Data from 1772 Mexicans, aged ≥50 years, enrolled in a sub-sample of the 3rd wave of the Mexican Health and Aging Study, were included...
January 31, 2017: Nutrients
https://www.readbyqxmd.com/read/28145420/vitamin-b12-homocysteine-and-depressive-symptoms-a-longitudinal-study-among-older-adults
#8
L E M Elstgeest, I A Brouwer, B Wj H Penninx, N M van Schoor, M Visser
BACKGROUND/OBJECTIVES: The roles of vitamin B12 and homocysteine concentration in depression are not clear. We investigated cross-sectional and prospective associations of serum vitamin B12 and plasma homocysteine with depressive symptoms in Dutch older adults. SUBJECTS/METHODS: In the Longitudinal Aging Study Amsterdam (LASA), blood was collected in 1995/1996 among 1352 men and women aged ⩾65 years. Depressive symptoms were assessed with the Center for Epidemiologic Studies Depression Scale (CES-D) six times from 1995/1996 to 2011/2012...
February 1, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28144165/osteosarcopenic-obesity-in-women-impact-prevalence-and-management-challenges
#9
REVIEW
Pegah JafariNasabian, Julia E Inglis, Owen J Kelly, Jasminka Z Ilich
Osteosarcopenic obesity syndrome (OSO) has recently been identified as a condition encompassing osteopenia/osteoporosis, sarcopenia and obesity. OSO is especially deleterious in older adults (even if they are not obese by conventional measures), due to age-related redistribution of fat and its infiltration into bone and muscle. Osteoporosis and bone fractures in elderly increase the risk of sarcopenia, which, through decreased mobility, increases the risk of more falls and fractures, creating a vicious cycle...
2017: International Journal of Women's Health
https://www.readbyqxmd.com/read/28132725/sufficient-levels-of-25-hydroxyvitamin-d-and-protein-intake-required-to-increase-muscle-mass-in-sarcopenic-older-adults-the-provide-study
#10
Sjors Verlaan, Andrea B Maier, Jürgen M Bauer, Ivan Bautmans, Kirsten Brandt, Lorenzo M Donini, Marcello Maggio, Marion E T McMurdo, Tony Mets, Chris Seal, Sander L J Wijers, Cornel Sieber, Yves Boirie, Tommy Cederholm
BACKGROUND: Inadequate nutritional intake and altered response of aging muscles to anabolic stimuli from nutrients contribute to the development of sarcopenia. Nutritional interventions show inconsistent results in sarcopenic older adults, which might be influenced by their basal nutritional status. OBJECTIVE: To test if baseline serum 25-hydroxyvitamin D (25(OH)D) concentrations and dietary protein intake influenced changes in muscle mass and function in older adults who received nutritional intervention...
January 17, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28120398/vitamin-d-serum-levels-are-cross-sectionally-but-not-prospectively-associated-with-late-life-depression
#11
O Jovanova, N Aarts, R Noordam, M Carola-Zillikens, A Hofman, H Tiemeier
OBJECTIVE: The evidence for a prospective association of vitamin D deficiency with the occurrence of late-life depression is limited. We aimed to study the long-term association between vitamin D serum levels and depression in a large population-based study of older adults. METHOD: We included 3251 participants from the Rotterdam Study, aged 55 and older with 32 400 person-years follow-up for depression. Baseline 25-hydroxyvitamin D (25(OH)D) serum levels were analyzed continuously and categorically...
January 25, 2017: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/28093352/cyp24a1-loss-of-function-clinical-phenotype-of-monoallelic-and-biallelic-mutations
#12
REVIEW
Thomas O Carpenter
CYP24A1, encoding the vitamin D-24-hydroxylase, is of major clinical and physiologic importance, serving to regulate the catabolism of 1,25-(OH)2D, the physiologically active vitamin D metabolite. In addition to facilitating catabolism of 1,25-(OH)2D, CYP24A1 also enhances the turnover and elimination of 25-OHD, the abundant precursor metabolite and storage form of the vitamin. CYP24A1 can be stimulated hormonally by 1,25-(OH)2D and by FGF23, whereas CYP27B1, encoding the vitamin D-1α-hydroxylase, is stimulated hormonally by parathyroid hormone (PTH) and downregulated by FGF23...
January 13, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28088200/vitamin-d-status-among-the-elderly-chinese-population-a-cross-sectional-analysis-of-the-2010-2013-china-national-nutrition-and-health-survey-cnnhs
#13
Jing Chen, Chunfeng Yun, Yuna He, Jianhua Piao, Lichen Yang, Xiaoguang Yang
BACKGROUND: Vitamin D inadequacy is common among the elderly, especially within the Asian population. The vitamin D status among healthy adults in the elderly Chinese population was evaluated. METHODS: A total of 6014 healthy adults aged 60 years or older (2948 men, 3066 women) participated in this descriptive cross-sectional analysis. Possible predictors of vitamin D inadequacy were evaluated via multiple logistic regression analyses. RESULTS: The median serum 25-hydroxyvitamin D (25(OH)D) levels were 61...
January 14, 2017: Nutrition Journal
https://www.readbyqxmd.com/read/28060020/significant-association-between-statin-associated-myalgia-and-vitamin-d-deficiency-among-treated-hiv-infected-patients
#14
Leonardo Calza, Eleonora Magistrelli, Vincenzo Colangeli, Marco Borderi, Ilaria Contadini, Isabella Bon, Maria Carla Re, Pierluigi Viale
BACKGROUND.: Several studies have shown a significant association between vitamin D deficiency and an increased risk of statin-related symptomatic myalgia in the general population, but there are no data among HIV-infected persons. METHODS.: A retrospective, cohort study was conducted to assess the incidence of symptomatic myalgia and elevation in serum creatine kinase (CK) level among HIV-positive adults on cART and treated with atorvastatin or rosuvastatin for at least 12 months between 2011 and 2015 in our Outpatient Unit...
January 4, 2017: AIDS
https://www.readbyqxmd.com/read/28045952/predictive-factors-of-one-year-mortality-in-a-cohort-of-patients-undergoing-urgent-start-hemodialysis
#15
Luciene P Magalhães, Luciene M Dos Reis, Fabiana G Graciolli, Benedito J Pereira, Rodrigo B de Oliveira, Altay A L de Souza, Rosa M Moyses, Rosilene M Elias, Vanda Jorgetti
BACKGROUND: Chronic kidney disease (CKD) affects 10-15% of adult population worldwide. Incident patients on hemodialysis, mainly those on urgent-start dialysis at the emergency room, have a high mortality risk, which may reflect the absence of nephrology care. A lack of data exists regarding the influence of baseline factors on the mortality of these patients. The aim of this study was to evaluate the clinical and laboratory characteristics of this population and identify risk factors that contribute to their mortality...
2017: PloS One
https://www.readbyqxmd.com/read/28028727/vitamin-d-deficiency-in-older-adults-and-its-associated-factors-a-cross-sectional-analysis-of-the-mexican-health-and-aging-study
#16
María Fernanda Carrillo-Vega, Carmen García-Peña, Luis Miguel Gutiérrez-Robledo, Mario Ulises Pérez-Zepeda
: Vitamin D deficiency was common in older adults from a country with adequate sun exposure. The variables associated with this deficiency provide insight into the next steps needed to characterize older adults with this deficiency and to treat it accordingly. PURPOSE: The aim of this study was to describe the prevalence of and factors associated with vitamin D deficiency among Mexican older adults. METHODS: This was a secondary analysis of the last wave of the Mexican Health and Aging Study...
December 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/27999849/dietary-supplement-use-in-older-people-attending-memory-clinics-in-australia
#17
A J Cross, J George, M C Woodward, D Ames, H Brodaty, R A Elliott
BACKGROUND: Dietary supplement use is common in older adults. There has been limited research in people attending memory clinics. OBJECTIVES: To explore the use of dietary supplements in older people attending Australian memory clinics. DESIGN: Cross-sectional analysis of baseline data from the Prospective Research In MEmory clinics (PRIME) study. PARTICIPANTS: Community-dwelling older people who attended nine memory clinics and had a diagnosis of mild cognitive impairment (MCI) or dementia...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/27995364/transition-in-the-mechanism-of-flow-mediated-dilation-with-aging-and-development-of-coronary-artery-disease
#18
Andreas M Beyer, Natalya Zinkevich, Bradley Miller, Yanping Liu, April L Wittenburg, Michael Mitchell, Ralph Galdieri, Andrey Sorokin, David D Gutterman
In microvessels of patients with coronary artery disease (CAD), flow-mediated dilation (FMD) is largely dependent upon the endothelium-derived hyperpolarizing factor H2O2. The goal of this study is to examine the influence of age and presence or absence of disease on the mechanism of FMD. Human coronary or adipose arterioles (~150 µm diameter) were prepared for videomicroscopy. The effect of inhibiting COX [indomethacin (Indo) or NOS (L-NAME), eliminating H2O2 (polyethylene glycol-catalase (PEG-CAT)] or targeting a reduction in mitochondrial ROS with scavengers/inhibitors [Vitamin E (mtVitamin E); phenylboronic acid (mtPBA)] was determined in children aged 0-18 years; young adults 19-55 years; older adults >55 years without CAD, and similarly aged adults with CAD...
January 2017: Basic Research in Cardiology
https://www.readbyqxmd.com/read/27975302/vitamin-d-deficiency-is-associated-with-functional-decline-and-falls-in-frail-elderly-women-despite-supplementation
#19
M P Kotlarczyk, S Perera, M A Ferchak, D A Nace, N M Resnick, S L Greenspan
: We examined the impact of daily supplementation on vitamin D deficiency, function, and falls in female long-term care residents. Initial vitamin D deficiency was associated with greater functional decline and increased fall risk despite guideline-recommended supplementation, highlighting the importance of preventing vitamin D deficiency in frail elderly. INTRODUCTION: Institute of Medicine (IOM) guidelines recommend 800 IU vitamin D daily for older adults and maintaining serum 25-hydroxyvitamin D [25(OH) D] above 20 ng/ml for optimal skeletal health...
December 15, 2016: Osteoporosis International
https://www.readbyqxmd.com/read/27968929/nutrition-and-skin-kids-are-not-just-little-people
#20
Meagen McCusker, Robert Sidbury
There has been a surge of new data regarding the pathophysiology of skin diseases. We are appreciating the sophisticated interplay among the skin, the immune system, and the environment. More elegant and highly specific medicines have been designed to target certain immune mediators of the adaptive immune system. In parallel fashion, we are learning more about the elegance of the innate immune system and how nutrition as early as the prenatal period can affect the priming of other immune cells. Concerns about the long-term impact of new immune-modulating medicines-especially in the pediatric population-have patients asking their dermatologists for nutritional alternatives to medical therapies...
November 2016: Clinics in Dermatology
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