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Vitamin-D

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https://www.readbyqxmd.com/read/28813022/impact-of-orientation-on-the-vitamin-d-weighted-exposure-of-a-human-in-an-urban-environment
#1
Michael Schrempf, Nadine Thuns, Kezia Lange, Gunther Seckmeyer
The vitamin D₃-weighted UV exposure of a human with vertical posture was calculated for urban locations to investigate the impact of orientation and obstructions on the exposure. Human exposure was calculated by using the 3D geometry of a human and integrating the radiance, i.e., the radiant energy from the direct solar beam and the diffuse sky radiation from different incident and azimuth angles. Obstructions of the sky are derived from hemispherical images, which are recorded by a digital camera with a fisheye lens...
August 16, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28812446/higher-dietary-intake-of-vitamin-d-may-influence-total-cholesterol-and-carbohydrate-profile-independent-of-body-composition-in-men-with-chronic-spinal-cord-injury
#2
Christopher Beal, Ashraf Gorgey, Pamela Moore, Nathan Wong, Robert A Adler, David Gater
STUDY DESIGN: A case-control design. OBJECTIVES: To determine the effects of dietary vitamin D intake on insulin sensitivity (Si), glucose effectiveness (Sg), and lipid profile in individuals with spinal cord injury (SCI). METHODS: 20 male, paraplegic (T3-L1) with chronic (> one year) motor complete SCI (AIS A or B) were recruited. Three-day dietary records were analyzed for dietary vitamin D (calciferol), and participants were assigned to one of two groups, a high vitamin D intake group and a low vitamin D intake group based on the mid-point of vitamin D frequency distribution...
August 16, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28812264/oxytocin-and-steroid-actions
#3
Gustav F Jirikowski, Scott D Ochs, Jack D Caldwell
Biosynthesis and secretion of the hypothalamic nonapeptide oxytocin largely depends on steroid hormones. Estradiol, corticosterone, and vitamin D seem to be the most prominent actors. Due to their lipophilic nature, systemic steroids are thought to be capable of crossing the blood-brain barrier, thus mediating central functions including neuroendocrine and behavioral control. The actual mode of action of steroids in hypothalamic circuitry is still unknown: Most of the oxytocinergic perikarya lack nuclear steroid receptors but express proteins suspected to be membrane receptors for steroids...
August 16, 2017: Current Topics in Behavioral Neurosciences
https://www.readbyqxmd.com/read/28812252/secondary-fracture-prevention-in-hip-fracture-patients-requires-cooperation-from-general-practitioners
#4
Jan Vaculík, Jan J Stepan, Pavel Dungl, Marek Majerníček, Alexander Čelko, Valér Džupa
Despite individual recommendations on osteoporosis management in patients after hip fracture surgery, addressed by orthopedic surgeons to Czech general practitioners, the patients remained undiagnosed and untreated because of provider-level barriers to post-fracture secondary prevention. PURPOSE: The goal of the study was to assess whether an individual recommendation on osteoporosis treatment addressed to a hip fracture patient's GP would lead to better osteoporosis management. METHODS: Two groups of patients who suffered hip fractures and were treated at the Orthopedic Department were evaluated...
May 18, 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/28812209/effect-of-vitamin-d-supplementation-in-chronic-widespread-pain-a-systematic-review-and-meta-analysis
#5
Wai Chung Yong, Anawin Sanguankeo, Sikarin Upala
Chronic non-specific widespread pain (CWP) including fibromyalgia (FMS) is characterized by widespread pain, reduced pain threshold, and multiple tender points on examination, causing disability and decreased quality of life. Vitamin D has been proposed as an associated factor in CWP. This meta-analysis aimed to explore the benefit of vitamin D supplementation in the management of CWP. A comprehensive search of the CENTRAL, MEDLINE, and Embase databases was performed from inception through January 2017. The inclusion criterion was the randomized clinical trials' evaluating the effects of vitamin D treatment in adult subjects with CWP or FMS...
August 15, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28812189/nutrient-intake-of-swiss-toddlers
#6
Thomas A Brunner, Luca Casetti, Petra Haueter, Pascal Müller, Andreas Nydegger, Johannes Spalinger
PURPOSE: During the first years of life, food preferences are shaped that might last throughout a person's entire life affecting his/her health in the long term. However, knowledge on early feeding habits is still limited for toddlers. Therefore, the goal of the present study was to: (1) assess toddlers' nutrient intake; (2) compare the findings to past studies as well as to national feeding recommendations and (3) identify major food sources for energy and macronutrients. METHODS: A food survey using a 4-day diary was conducted...
August 10, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28812111/syndrome-of-inappropriate-anti-diuresis-induces-volume-dependent-hypercalciuria
#7
J Grellier, A Jaafar, A Martin, M El Alaoui, C Lebely, I Tack, M Vallet
Hyponatremia is associated with bone demineralization. We hypothesized that, during hyponatremia, calciuria and calcium balance depend on volemic status. We evaluated calciuria in patients with hyponatremia, secondary to SIAD or hypovolemia. Patients with SIAD exhibited a volemic expansion that was associated with hypercalciuria. Calciuria was proportional to markers of volemia. INTRODUCTION: Chronic mild hyponatremia has been associated with bone demineralization of unknown mechanisms...
August 15, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28811925/vitamin-d-deficiency-is-to-be-expected-due-to-immune-changes-related-to-mental-health-problems
#8
Annie Swanepoel
No abstract text is available yet for this article.
August 2017: BJPsych Bulletin
https://www.readbyqxmd.com/read/28811844/lsd1-dual-function-in-mediating-epigenetic-corruption-of-the-vitamin-d-signaling-in-prostate-cancer
#9
Sebastiano Battaglia, Ellen Karasik, Bryan Gillard, Jennifer Williams, Trisha Winchester, Michael T Moser, Dominic J Smiraglia, Barbara A Foster
BACKGROUND: Lysine-specific demethylase 1A (LSD1) is a key regulator of the androgen (AR) and estrogen receptors (ER), and LSD1 levels correlate with tumor aggressiveness. Here, we demonstrate that LSD1 regulates vitamin D receptor (VDR) activity and is a mediator of 1,25(OH)2-D3 (vitamin D) action in prostate cancer (PCa). METHODS: Athymic nude mice were xenografted with CWR22 cells and monitored weekly after testosterone pellet removal. Expression of LSD1 and VDR (IHC) were correlated with tumor growth using log-rank test...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28811787/association-between-vitamin-d-deficiency-and-breast-cancer
#10
Noureen Shaukat, Farhat Jaleel, Foad Ali Moosa, Naeem Akhter Qureshi
OBJECTIVE: To determine the association between vitamin D deficiency and breast cancer. METHODS: This case control study included 94 female patients aged 20-75 years of any marital status and parity. Newly diagnosed 42 breast cancer patients who presented to surgical OPD of Dow University Hospital from Jan 2016 to June 2016 were included into the study as "cases" after informed consent. Age-matched 52 females who presented to OPD for complain other than breast pathology were included as the "control group"...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28811780/role-of-vitamin-d-in-reducing-number-of-acute-exacerbations-in-chronic-obstructive-pulmonary-disease-copd-patients
#11
Dur Muhammad Khan, Aziz Ullah, Fawad Ahmad Randhawa, Somia Iqtadar, Nasir Farooq Butt, Khadija Waheed
BACKGROUND AND OBJECTIVE: Chronic obstructive pulmonary disease (COPD) is characterized by chronic incompletely reversible poor airflow and air trapping and usually this debilitating disorder limits the outside activities of the patients depriving them of sunlight which is a rich source of Vitamin D. The objective of this study was to determine the effect of vitamin D supplementation in reducing number of acute exacerbation in COPD patients. METHODS: This randomized control trial was conducted at East Medical Ward Mayo Hospital Lahore from January to December 2015 as exacerbations of COPD are season dependent...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28811597/vitamin-d-receptor-gene-polymorphisms-modify-cardiometabolic-response-to-vitamin-d-supplementation-in-t2dm-patients
#12
Nasser M Al-Daghri, Abdul Khader Mohammed, Omar S Al-Attas, Mohammed Ghouse Ahmed Ansari, Kaiser Wani, Syed D Hussain, Shaun Sabico, Gyanendra Tripathi, Majed S Alokail
There is conflicting evidence on the favorable effects of vitamin D supplementation on metabolic profile in Type 2 diabetes mellitus (T2DM) patients and this might be due to genetic variations in vitamin D receptors (VDRs). Thus, we studied the metabolic effects of a 12-month vitamin D supplementation in T2DM patients according to VDR polymorphisms. A total of 204 T2DM subjects received 2000 IU vitamin D3 daily for 12 months. Serum 25(OH)D and metabolic profiles were measured at baseline and after 12 months...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28810714/vitamin-d-supplementation-in-heart-failure-case-closed
#13
Rudolf A de Boer, Laura M G Meems, Dirk J van Veldhuisen
No abstract text is available yet for this article.
August 1, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28809989/a-comparative-study-to-evaluate-epidermal-barrier-integrity-of-psoriasis-patients-treated-with-calcipotriene-betamethasone-topical-suspension-versus-betamethasone-dipropionate-0-05-lotion
#14
Peter W Hashim, John K Nia, David Terrano, Gary Goldenberg, Leon H Kircik
<p>BACKGROUND: Topical corticosteroids are known to impair the epidermal barrier, even after short-term use, whereas topical vitamin D analogues can have a reparative effect. Combination products using corticosteroids and vitamin D analogues have gained popularity in recent years and may provide a means to minimize skin atrophy in patients treated with topical corticosteroids.</p> <p>OBJECTIVE: To compare epidermal barrier function and cutaneous atrophy after 4 weeks of calcipotriene 0.005% and betamethasone dipropionate 0...
August 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28809744/effect-of-vitamin-d-serum-levels-and-gc-gene-polymorphisms-in-liver-fibrosis-due-to-chronic-hepatitis-c
#15
Laura A Azevedo, Ursula Matte, Themis R Silveira, Jacqueline W Bonfanti, Juliana P Bruch, Mário R Álvares-da-Silva
INTRODUCTION AND AIM: Vitamin D has been associated with chronic liver diseases and low vitamin levels may contribute to progression of chronic hepatitis C. The aim of this study was to evaluate the influence of vitamin D serum levels and GC gene polymorphisms in the severity of liver fibrosis in patients with chronic hepatitis C genotype 1. MATERIAL AND METHODS: Cross-sectional study that enrolled 132 adult patients with chronic hepatitis C genotype 1 attended at the outpatient Clinic of Gastroenterology Division at Hospital de Clínicas de Porto Alegre...
August 8, 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/28809195/pok%C3%A3-mon-go-why-augmented-reality-games-offer-insights-for-enhancing-public-health-interventions-on-obesity-related-diseases
#16
Ming Chao Wong, Paul Turner, Kate MacIntyre, Kwang Chien Yee
Stimulating widespread interests of the population to participate in behavioural changes through information and technology has been an aim of much health informatics research. The recent widespread participation of the augmented reality game Pokémon Go which encourages exercises, provides significant insights into the potential of information technology to improve healthcare intervention on obesity-related disease. Does Pokémon Go point to another way of achieving health benefits using mobile devices? This paper analyses the features of Pokémon Go in relation to potential health benefits...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28808890/vitamin-d-activity-and-metabolism-in-bone
#17
REVIEW
Paul H Anderson
PURPOSE OF REVIEW: In addition to the actions of the endocrine hormone, 1alpha,25-dihydroxyvitamin D (1,25(OH)2D) in stimulating intestinal calcium absorption, the regulation of bone mineral metabolism by 1,25(OH)2D is also considered an important contributor to calcium homeostasis. However, recent evidence suggest that 1,25(OH)2D acting either via endocrine or autocrine pathways plays varied roles in bone, which suggests that vitamin D contributes to the maintenance of bone mineral in addition to its catabolic roles...
August 14, 2017: Current Osteoporosis Reports
https://www.readbyqxmd.com/read/28808858/vitamin-d-and-heart-failure
#18
REVIEW
D Marshall Brinkley, Omair M Ali, Sandip K Zalawadiya, Thomas J Wang
PURPOSE: Vitamin D is principally known for its role in calcium homeostasis, but preclinical studies implicate multiple pathways through which vitamin D may affect cardiovascular function and influence risk for heart failure. Many adults with cardiovascular disease have low vitamin D status, making it a potential therapeutic target. We review the rationale and potential role of vitamin D supplementation in the prevention and treatment of chronic heart failure. RECENT FINDINGS: Substantial observational evidence has associated low vitamin D status with the risk of heart failure, ventricular remodeling, and clinical outcomes in heart failure, including mortality...
August 14, 2017: Current Heart Failure Reports
https://www.readbyqxmd.com/read/28808645/effect-of-vitamin-d-supplementation-on-the-incidence-of-gestational-diabetes
#19
Hatav Ghasemi Tehrani, Fatemeh Mostajeran, Behnaz Banihashemi
BACKGROUND: The aim of this study was survey of the effect of Vitamin D supplementation on the incidence of gestational diabetes (GDM) in pregnant women. MATERIALS AND METHODS: This randomized clinical trial was conducted at Alzahra and Shahid Beheshti Hospital in Isfahan, Iran, from January, 2013 to January, 2014 on 210 pregnant women referred to gynecology clinics. Serum levels of Vitamin D were measured, and those with lower serum levels of 10 nmol/L randomly divided into two groups of A and B...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28808509/an-educational-intervention-to-increase-awareness-reduces-unnecessary-laboratory-testing-in-an-internal-medicine-resident-run-clinic
#20
Erika Leung, Shuang Song, Omar Al-Abboud, Shahed Shams, John English, Wisam Naji, Yafei Huang, Leon Robison, Fred Balis, Hameem I Kawsar
At our resident-run clinic in an underserved community, laboratory test costs in 2013 exceeded the government subsidy by $400 000. To optimize limited resources and improve patient care, an education program to reduce testing was implemented. Between November 2014 and January 2015, residents attended lectures on utilization of laboratory testing, focusing on standard practice guidelines, and analyses of unnecessary tests. Multivariate nonparametric statistical methods and subgroup analysis were used to evaluate cost reduction...
July 2017: Journal of Community Hospital Internal Medicine Perspectives
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