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https://www.readbyqxmd.com/read/29351807/vitamin-d-receptor-rs2228570-polymorphism-is-associated-with-lh-levels-in-men-exposed-to-anabolic-androgenic-steroids
#1
Linda Björkhem-Bergman, Mikael Lehtihet, Anders Rane, Lena Ekström
OBJECTIVE: The primary aim of this study was to investigate the association between the vitamin D receptor polymorphisms rs2228570 (Fok1) and rs731236 (TaqI) and LH and FSH levels in relation to anabolic androgenic steroid (AAS) use. RESULTS: Two cohorts were analyzed. Cohort 1 comprised healthy volunteers given single supra-physiological doses of 500 mg testosterone (n = 25). Cohort 2 comprised 45 self-reporting AAS users. Healthy volunteers homozygous for the C-allele of the Fok1 polymorphism exhibited 30% higher LH levels than T-carriers at baseline (p = 0...
January 19, 2018: BMC Research Notes
https://www.readbyqxmd.com/read/29351198/superoxide-dismutase-mimetic-gc4419-enhances-the-oxidation-of-pharmacological-ascorbate-and-its-anticancer-effects-in-an-h%C3%A2-o%C3%A2-dependent-manner
#2
Collin D Heer, Andrew B Davis, David B Riffe, Brett A Wagner, Kelly C Falls, Bryan G Allen, Garry R Buettner, Robert A Beardsley, Dennis P Riley, Douglas R Spitz
Lung cancer, together with head and neck cancer, accounts for more than one-fourth of cancer deaths worldwide. New, non-toxic therapeutic approaches are needed. High-dose IV vitamin C (aka, pharmacological ascorbate; P-AscH-) represents a promising adjuvant to radiochemotherapy that exerts its anti-cancer effects via metal-catalyzed oxidation to form H₂O₂. Mn(III)-porphyrins possessing superoxide dismutase (SOD) mimetic activity have been shown to increase the rate of oxidation of AscH-, enhancing the anti-tumor effects of AscH- in several cancer types...
January 19, 2018: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/29337846/25-hydroxyvitamin-d-and-long-menstrual-cycles-in-a-prospective-cohort-study
#3
Anne Marie Z Jukic, Allen J Wilcox, D Robert McConnaughey, Clarice R Weinberg, Anne Z Steiner
BACKGROUND: Vitamin D insufficiency is associated with subfertility and prolonged estrus cycles in animals, but humans have not been well studied. METHODS: A prospective time-to-pregnancy study, Time to Conceive (2010-2015), collected up to 4 months of daily diary data. Participants were healthy, late reproductive-aged women in North Carolina who were attempting pregnancy. We examined menstrual cycle length as a continuous variable, as well as in categories: long (35+ days) and short (≤25 days)...
January 15, 2018: Epidemiology
https://www.readbyqxmd.com/read/29337447/-geriatric-medicine
#4
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
https://www.readbyqxmd.com/read/29331793/moderate-dose-simvastatin-therapy-potentiates-the-effect-of-vitamin-d-on-thyroid-autoimmunity-in-levothyroxine-treated-women-with-hashimoto-s-thyroiditis-and-vitamin-d-insufficiency
#5
Robert Krysiak, Witold Szkróbka, Bogusław Okopień
BACKGROUND: Vitamin D preparations reduce titers of thyroid antibodies in women with autoimmune thyroiditis. The same effect was induced by high-dose, but not moderate-dose-, statin therapy. No previous study has investigated the impact of concomitant treatment with a statin and vitamin D on thyroid autoimmunity. METHODS: The study included three matched groups of women with Hashimoto's thyroiditis and low vitamin D status. Groups B (n = 19) and C (n = 20) were treated with vitamin D (2000 IU daily)...
July 27, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29331722/effect-of-vitamin-d-supplementation-on-serum-sclerostin-levels-in-chronic-kidney-disease
#6
REVIEW
Ashok Kumar Yadav, Vivek Kumar, Debasish Banerjee, Krishan Lal Gupta, Vivekanand Jha
Vitamin D deficiency, cardiovascular disease and abnormal bone mineral metabolism are common in chronic kidney disease (CKD). Abnormal bone mineral metabolism has been linked to vascular calcification in CKD. Sclerostin has emerged as an important messenger in cross talk between bone-vascular axis. We analyzed sclerostin in subjects who participated in the randomized, double blind, placebo controlled trial investigating the effect of cholecalciferol supplementation on vascular function in non-diabetic CKD stage G3-4 and vitamin D ≤20ng/ml [CTRI/2013/05/003648]...
January 10, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29322017/clinical-profile-and-long-term-follow-up-of-32-patients-with-postoperative-permanent-hypoparathyroidism
#7
Leyre Lorente-Poch, Juan J Sancho, Leticia Carballo, Antonio Sitges-Serra
Background: Parathyroid failure is the most common complication after total thyroidectomy but permanent impairment of the parathyroid function is unusual. Limited data is available assessing long-term follow-up, quality of life and complications occurring in patients with permanent hypoparathyroidism (PH). We aimed to assess the incidence of complications derived from PH status, their influence on the quality of life perceived by PH patients and its relation to standard medical treatment with calcium salts and active vitamin D analogues...
December 2017: Gland Surgery
https://www.readbyqxmd.com/read/29319776/hypercalcemia-and-acute-renal-insufficiency-following-use-of-a-veterinary-supplement
#8
Marcelo Fernando Ronsoni, Heloisa de Cassia Dos Santos, Bruno da Silveira Colombo, Carina Gabriela Correa, Ana Paula Gomes Moritz, Marisa Helena Cesar Coral, Simone Van de Sande-Lee, Alexandre Hohl
A previously healthy 24 yo male presented with a two-month history of epigastric pain, nausea, vomiting, fatigue and malaise. He reported abuse of different substances, including an injectable veterinary vitamin compound, which contains high doses of vitamin A, D and E, and an oily vehicle that induces local edema and enhances muscle volume. Serum creatinine was 3.1 mg/dL, alanine transaminase 160 mg/dL, aspartate transaminase 11 mg/dL, total testosterone 23 ng/dL, 25-OH-vitamin D >150 ng/mL (toxicity >100), 1,25-OH-vitamin D 80 pg/mL, vitamin A 0...
October 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29318446/vitamin-d-improves-neurogenesis-and-cognition-in-a-mouse-model-of-alzheimer-s-disease
#9
Maria Morello, Véréna Landel, Emmanuelle Lacassagne, Kevin Baranger, Cedric Annweiler, François Féron, Pascal Millet
The impairment of hippocampal neurogenesis at the early stages of Alzheimer's disease (AD) is believed to support early cognitive decline. Converging studies sustain the idea that vitamin D might be linked to the pathophysiology of AD and to hippocampal neurogenesis. Nothing being known about the effects of vitamin D on hippocampal neurogenesis in AD, we assessed them in a mouse model of AD. In a previous study, we observed that dietary vitamin D supplementation in female AD-like mice reduced cognitive decline only when delivered during the symptomatic phase...
January 9, 2018: Molecular Neurobiology
https://www.readbyqxmd.com/read/29318083/a-missed-opportunity-in-bone-health-vitamin-d-and-calcium-use-in-elderly-femoral-neck-fracture-patients-following-arthroplasty
#10
Sheila Sprague, Kim Madden, Gerard Slobogean, Brad Petrisor, Jonathan D Rick Adachi, Earl Bogoch, Ydo V Kleinlugtenbelt, Mohit Bhandari
Introduction: Introduction: Adequate calcium and vitamin D from diet and supplementation is recommended for elderly hip fracture patients. Using data from the multinational hip fracture arthroplasty trial (HEALTH), we determined the proportion of patients who consistently took vitamin D and calcium and which characteristics/prescribing practices were associated with consistency of supplement use. Methods: HEALTH is a multicenter randomized trial of elderly hip fracture patients treated with hemi-arthroplasty and total hip arthroplasty...
December 2017: Geriatric Orthopaedic Surgery & Rehabilitation
https://www.readbyqxmd.com/read/29316620/could-aspirin-and-diets-high-in-fiber-act-synergistically-to-reduce-the-risk-of-colon-cancer-in-humans
#11
REVIEW
Pan Pan, Yi-Wen Huang, Kiyoko Oshima, Martha Yearsley, Jianying Zhang, Jianhua Yu, Mark Arnold, Li-Shu Wang
Early inhibition of inflammation suppresses the carcinogenic process. Aspirin is the most commonly used non-steroid anti-inflammatory drugs (NSAIDs), and it irreversibly inhibits cyclooxygenase-1 and -2 (COX1, COX2). Multiple randomized clinical trials have demonstrated that aspirin offers substantial protection from colon cancer mortality. The lower aspirin doses causing only minimal gastrointestinal disturbance, ideal for long-term use, can achieve only partial and transitory inhibition of COX2. Aspirin's principal metabolite, salicylic acid, is also found in fruits and vegetables that inhibit COX2...
January 6, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29315160/preventive-effects-of-vitamin-d-on-seasonal-influenza-a-in-infants-a-multicenter-randomized-open-controlled-clinical-trial
#12
Jian Zhou, Juan Du, Leting Huang, Youcheng Wang, Yimei Shi, Hailong Lin
OBJECTIVES: This study aimed to evaluate the clinical efficacy and safety of vitamin D for preventing influenza A in 400 infants in a multicenter, randomized, open, controlled clinical trial. METHODS: The infants were randomized into low-dose and high-dose vitamin D groups, and serum calcium, inorganic phosphorus and 25-hydroxyvitamin D levels were detected thrice in 4 months. Infants infected with influenza A were monitored for symptoms including fever, cough, and wheezing...
January 8, 2018: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29314669/vitamin-d-deficiency-is-associated-with-tibial-bone-pain-and-tenderness-a-possible-contributive-role
#13
Mansour Babaei, Mehdi Esmaeili Jadidi, Behzad Heidari, Hemmat Gholinia
BACKGROUND: Vitamin D deficiency is associated with osteomalacia and a variety of musculoskeletal pain. This study aimed to determine the association of vitamin D deficiency with tibial bone pain and tenderness. METHODS: Patients with leg pain, defined as local pain and tenderness over tibial bones for ≥ 6 weeks were consecutively selected. Secondary causes of pain were excluded by appropriate clinical, radiological and laboratory examinations. Serum 25-hydroxyvitamin D (25-OHD) was assessed by enzyme-linked immunosorbent assay method and levels < 20 ng/mL were considered as deficiency...
January 5, 2018: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29313071/glucocorticoids-inflammation-and-bone
#14
REVIEW
Melek Güler-Yüksel, Jos N Hoes, Irene E M Bultink, Willem F Lems
The current review on glucocorticoids (GCs), inflammation and bone is focused on three aspects: (1) the mutual effects between GCs, inflammation and bone in inflammatory rheumatic diseases, (2) current views on fracture risk assessment in patients using GCs and (3) non-pharmacological and pharmacological treatment to prevent fractures in GC-using patients with inflammatory rheumatic diseases. The use of GCs results in increased risk for fractures due to both direct and indirect negative effects of GCs on bone mass, and on bone and muscle strength...
January 8, 2018: Calcified Tissue International
https://www.readbyqxmd.com/read/29302265/the-effect-of-low-dose-intravenous-bisphosphonate-treatment-on-osteoporosis-in-children-with-quadriplegic-cerebral-palsy
#15
Soon Jeong Moon, Young Min An, Soon Ki Kim, Young Se Kwon, Ji Eun Lee
Purpose: Quadriplegic children with cerebral palsy are more susceptible to osteoporosis because of various risk factors that interfere with bone metabolism. Pamidronate is effective for pediatric osteoporosis, but there are no guidelines for optimal dosage or duration of treatment in quadriplegic children with osteoporosis. We aimed to evaluate the efficacy of low-dose pamidronate treatment in these patients. Methods: Ten quadriplegic patients on antiepileptic drugs (6 male, 4 female patients; mean age, 10...
December 2017: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/29300423/effects-of-low-dose-dairy-protein-plus-micronutrient-supplementation-during-resistance-exercise-on-muscle-mass-and-physical-performance-in-older-adults-a-randomized-controlled-trial
#16
S Seino, K Sumi, M Narita, Y Yokoyama, K Ashida, A Kitamura, S Shinkai
OBJECTIVES: To investigate whether supplementation with low-dose dairy protein plus micronutrients augments the effects of resistance exercise (RE) on muscle mass and physical performance compared with RE alone among older adults. DESIGN: Randomized controlled trial. SETTING: Tokyo, Japan. PARTICIPANTS: Eighty-two community-dwelling older adults (mean age, 73.5 years) were randomly allocated to an RE plus dairy protein and micronutrient supplementation group or an RE only group (n = 41 each)...
2018: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/29299734/modelling-of-adequate-and-safe-vitamin-d-intake-in-danish-women-using-different-fortification-and-supplementation-scenarios-to-inform-fortification-policies
#17
Ida M Grønborg, Inge Tetens, Majken Ege, Tue Christensen, Elisabeth Wreford Andersen, Rikke Andersen
PURPOSE: Fortification of foods with vitamin D may be a population-based solution to low vitamin D intake. We performed modelling of vitamin D from diet, fortified foods and supplements in a population of Danish women 18-50 years, a risk group of vitamin D deficiency, to inform fortification policies on safe and adequate levels. METHODS: Based on individual habitual dietary vitamin D intake of female participants from the Danish National Survey of Dietary Habits and Physical Activity (DANSDA) (n = 855), we performed graded intake modelling to predict the intake in six scenarios increasing the vitamin D intake from a habitual diet without fish to habitual diet including fish, fortified foods and supplements (40/80 µg)...
January 3, 2018: European Journal of Nutrition
https://www.readbyqxmd.com/read/29289621/high-dose-of-vitamin-d-supplement-is-associated-with-reduced-susceptibility-of-monocyte-derived-macrophages-to-dengue-virus-infection-and-pro-inflammatory-cytokine-production-an-exploratory-study
#18
Diana Marcela Giraldo, Andrés Cardona, Silvio Urcuqui Inchima
BACKGROUND: Dengue, one the most important public health problems in tropical and subtropical areas, is the most important mosquito-borne viral infection in humans. In the absence of effective treatment and vaccine against dengue, the active form of vitamin D could play a central role in protection against dengue virus (DENV), the causal agent of dengue. Recently we reported that monocyte-derived macrophages (MDMs) differentiated in the presence of vitamin D, in addition to expressing lower levels of mannose receptor, are less susceptible to DENV infection and produce low levels of pro-inflammatory cytokines, compared to MDMs differentiated in the absence of vitamin D...
December 28, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29288250/oxidative-stress-in-critically-ill-ventilated-adults-effects-of-vitamin-d3-and-associations-with-alveolar-macrophage-function
#19
Jenny E Han, Jessica A Alvarez, Bashar Staitieh, Vin Tangpricha, Li Hao, Thomas R Ziegler, Greg S Martin, Lou Ann S Brown
BACKGROUND/OBJECTIVES: Disruptions in redox balance lead to oxidative stress, a promoter of morbidity in critical illness. This study aimed to: (1) characterize the plasma and alveolar thiol/disulfide redox pools, (2) examine their associations with alveolar macrophage phagocytosis, and (3) determine the effect of high dose vitamin D3 on plasma thiol/disulfide redox. SUBJECTS/METHODS: Subjects were 30 critically ill, ventilated adults in a double-blind randomized trial of high-dose (250 000 or 500 000 IU) vitamin D3 or placebo...
December 29, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29285441/high-dose-vitamin-d-supplementation-precipitating-hypercalcemic-crisis-in-granulomatous-disorders
#20
Vijaya Sarathi, Hareeshababu Karethimmaiah, Amit Goel
Background: Vitamin D supplementation precipitating hypercalcemic crisis is often the first manifestation in patients with granulomatous disorders. Methods: We report our experience on patients presenting with hypercalcemic crisis due to granulomatous disorder and the role of Vitamin D supplementation in the precipitation of hypercalcemic crisis in them. Results: The study included five patients with granulomatous disorders who presented with hypercalcemic crisis...
November 2017: Indian Journal of Endocrinology and Metabolism
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