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Vitamin D older adults

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https://www.readbyqxmd.com/read/28093352/cyp24a1-loss-of-function-clinical-phenotype-of-monoallelic-and-biallelic-mutations
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
https://www.readbyqxmd.com/read/27964962/improving-community-ambulation-after-hip-fracture-protocol-for-a-randomised-controlled-trial
#10
D Orwig, K K Mangione, M Baumgarten, M Terrin, R Fortinsky, A M Kenny, A L Gruber-Baldini, B Beamer, Ana Tosteson, M Shardell, L Magder, E Binder, K Koval, B Resnick, R L Craik, J Magaziner
INTRODUCTION: After a hip fracture in older persons, significant disability often remains; dependency in functional activities commonly persists beyond 3 months after surgery. Endurance, dynamic balance, quadriceps strength, and function are compromised, and contribute to an inability to walk independently in the community. In the United States, people aged 65 years and older are eligible to receive Medicare funding for physiotherapy for a limited time after a hip fracture. A goal of outpatient physiotherapy is independent and safe household ambulation 2 to 3 months after surgery...
January 2017: Journal of Physiotherapy
https://www.readbyqxmd.com/read/27904949/association-of-arthritis-and-vitamin-d-insufficiency-with-physical-disability-in-mexican-older-adults-findings-from-the-mexican-health-and-aging-study
#11
Luis M Valderrama-Hinds, Soham Al Snih, Martin A Rodriguez, Rebeca Wong
Arthritis and vitamin D insufficiency are prevalent in older adults and are risk factors for disability. The objective of this study was to examine the effect of co-occurring arthritis and vitamin D deficiency on upper-lower extremity functional limitations and disability in older adults. We examined 1533 participants aged ≥50 years from a subsample of the Mexican Health and Aging Study. Measures included sociodemographics, body mass index, comorbid conditions, falls, physical activity, physical function tests, functional limitations, activities of daily living (ADL), and vitamin D...
November 30, 2016: Rheumatology International
https://www.readbyqxmd.com/read/27899528/relationship-between-outdoor-temperature-and-cardiovascular-disease-risk-factors-in-older-people
#12
Claudio Sartini, Sarah Je Barry, Peter H Whincup, S Goya Wannamethee, Gordon DO Lowe, Barbara J Jefferis, Lucy Lennon, Paul Welsh, Ian Ford, Naveed Sattar, Richard W Morris
Background Previous studies demonstrated that lower outdoor temperatures increase the levels of established cardiovascular disease risk factors, such as blood pressure and lipids. Whether or not low temperatures increase novel cardiovascular disease risk factors levels is not well studied. The aim was to investigate associations of outdoor temperature with a comprehensive range of established and novel cardiovascular disease risk factors in two large Northern European studies of older adults, in whom cardiovascular disease risk is increased...
January 1, 2016: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/27897610/effect-of-calcitriol-supplementation-on-blood-pressure-in-older-adults
#13
Jaime Alberto Bricio-Barrios, Alín Jael Palacios-Fonseca, Mario Del Toro-Equihua, Carmen Alicia Sanchez-Ramirez
Recent studies suggest that vitamin D plays an important role in the control of blood pressure. Unfortunately, because older adults are more likely to have low 25-hydroxyvitamin-D [25(OH)D] levels, this study investigated whether calcitriol supplementation reduces blood pressure in older adults with hypertension. The design was a double-blind placebo-controlled randomized clinical trial with 36 randomly assigned subjects (71.7 ± 10 years). Blood pressure and serum levels of 25(OH)D before and after calcitriol intervention (1,000 IU daily for 6 weeks; n = 22) or placebo (n = 23) for 6 weeks were analyzed...
October 2016: Journal of Nutrition in Gerontology and Geriatrics
https://www.readbyqxmd.com/read/27897409/association-of-serum-vitamin-d-with-osteosarcopenic-obesity-korea-national-health-and-nutrition-examination-survey-2008-2010
#14
Jinhee Kim, Yunhwan Lee, Seunghee Kye, Yoon-Sok Chung, Okhee Lee
BACKGROUND: Serum vitamin D levels have been reported to be associated with individual components of body composition. However, the relationship between serum vitamin D and combined indices of adverse body composition is largely unknown. This cross-sectional study examined the association between serum vitamin D and osteosarcopenic obesity in a nationally representative sample of middle-aged and older adults. METHODS: We analysed the Korea National Health and Nutrition Examination Surveys (IV and V) conducted in 2008-2010, consisting of 5908 (2485 men, 3423 women) aged ≥ 50 years...
October 5, 2016: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/27886078/effects-of-two-year-vitamin-b12-and-folic-acid-supplementation-on-depressive-symptoms-and-quality-of-life-in-older-adults-with-elevated-homocysteine-concentrations-additional-results-from-the-b-proof-study-an-rct
#15
Elisa J de Koning, Nikita L van der Zwaluw, Janneke P van Wijngaarden, Evelien Sohl, Elske M Brouwer-Brolsma, Harm W J van Marwijk, Anke W Enneman, Karin M A Swart, Suzanne C van Dijk, Annelies C Ham, Nathalie van der Velde, André G Uitterlinden, Brenda W J H Penninx, Petra J M Elders, Paul Lips, Rosalie A M Dhonukshe-Rutten, Natasja M van Schoor, Lisette C P G M de Groot
Lowering elevated plasma homocysteine (Hcy) concentrations by supplementing vitamin B12 and folic acid may reduce depressive symptoms and improve health-related quality of life (HR-QoL) in older adults. This study aimed to test this hypothesis in a randomized controlled trial. Participants (N = 2919, ≥65 years, Hcy concentrations ≥12 µmol/L) received either 500 µg vitamin B12 and 400 µg folic acid daily or placebo for two years. Both tablets contained 15 µg vitamin D₃. Depressive symptoms were measured with the Geriatric Depression Scale-15 (GDS-15)...
November 23, 2016: Nutrients
https://www.readbyqxmd.com/read/27882314/the-role-of-pharmacists-in-preventing-falls-among-america-s-older-adults
#16
Mamta V Karani, Yara Haddad, Robin Lee
Falls are the leading cause of both fatal and non-fatal injuries in people aged 65 years and older and can lead to significant costs, injuries, functional decline, and reduced quality of life. While certain medications are known to increase fall risk, medication use is a modifiable risk factor. Pharmacists have specialized training in medication management and can play an important role in fall prevention. Working in a patient-centered team-based approach, pharmacists can collaborate with the primary care providers to reduce fall risk...
2016: Frontiers in Public Health
https://www.readbyqxmd.com/read/27874933/vitamin-d-supplementation-for-osteoporosis-in-older-adults-can-we-make-it-help-better
#17
C-H Dong, Q-M Gao, Z-M Wang, A-M Wang, P Zhen
With the increase of the average age of our population, the incidence of diseases specific for older adults has been increasing. One of such diseases is osteoporosis. The true incidence of osteoporosis is unknown. But the estimates indicate that this disease affects wide proportions of the population, ranging in millions or even ten millions in large countries like the United States. As this poses a significant burden on the health care system, interventions that could prevent or treat this condition are in the focus of clinical research...
November 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27874274/differential-association-between-sarcopenia-and-metabolic-phenotype-in-korean-young-and-older-adults-with-and-without-obesity
#18
You-Cheol Hwang, In-Jin Cho, In-Kyung Jeong, Kyu Jeung Ahn, Ho Yeon Chung
OBJECTIVE: To determine whether sarcopenia was associated with metabolic phenotype in subjects with and without obesity. METHODS: A total of 6,021 participants (2,592 men, 3,429 women) aged 30 to 93 years were assessed using data from the 2009 Korea National Health and Nutrition Examination Survey. Sarcopenia was defined as appendicular skeletal muscle mass divided by weight (%) that is <1 SD below the sex-specific mean for young adults. Metabolically unhealthy was defined as ≥2 components of metabolic syndrome or the presence of hypertension, diabetes, or cardiovascular disease...
January 2017: Obesity
https://www.readbyqxmd.com/read/27851678/osteoporosis-preventive-practice-between-veteran-and-nonveteran-older-adults-findings-from-patient-reported-data
#19
Eun-Shim Nahm, Kathleen Charters, Eunhae Yoo, Linda M Keldsen, Shijun Zhu
BACKGROUND: Veterans are prone to bone-related illnesses due to multiple risk factors such as prior injuries. The aim of this study was to compare trends in osteoporosis preventive practices between veteran and nonveteran older adults. METHODS: This was a secondary data analysis using selected baseline data and discussion postings from an online bone health trial including participants (N = 866) recruited from My HealtheVet (MHV) and SeniorNet (SN). Data were analyzed using descriptive statistics, parametric statistics, and content analysis...
November 2016: Orthopaedic Nursing
https://www.readbyqxmd.com/read/27845703/older-swedish-adults-with-high-self-perceived-health-show-optimal-25-hydroxyvitamin-d-levels-whereas-vitamin-d-status-is-low-in-patients-with-high-disease-burden
#20
Martin Carlsson, Pär Wanby, Lars Brudin, Erik Lexne, Karin Mathold, Rebecca Nobin, Lisa Ericson, Ola Nordqvist, Göran Petersson
Controversy pervades the definition of adequate and optimal vitamin D status. The Institutes of Medicine have recommended serum 25(OH)D levels above 50 nmol/L based upon evidence related to bone health, but some experts, including the Endocrine Society and International Osteoporosis Foundation, suggest a minimum serum 25(OH)D level of 75 nmol/L to reduce the risk of falls and fractures in older adults. In a cross-sectional study, we compared vitamin D status in people ≥75 years selected from four groups with a frailty phenotype, combined with a control group free from serious illness, and who considered themselves completely healthy...
November 11, 2016: Nutrients
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