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https://www.readbyqxmd.com/read/28237990/low-serum-levels-of-vitamin-d-are-associated-with-progression-of-subclinical-atherosclerotic-vascular-disease-in-peritoneal-dialysis-patients-a-prospective-multicenter-study
#1
Miguel Pérez Fontán, Mercè Borràs Sans, Maria Auxiliadora Bajo Rubio, Ana Rodriguez-Carmona, Angels Betriu, José Maria Valdivielso, Elvira Fernández
BACKGROUND: The prevalence of subclinical atherosclerosis and the main predictors of progression of this condition in patients undergoing peritoneal dialysis (PD) have been insufficiently investigated. OBJECTIVES AND METHOD: Following a prospective, multicenter, observational design, we studied 237 patients who were treated with PD for ≥3 months, without any clinical background of cardiovascular (CV) disease. Our objectives were the following: (1) to investigate the prevalence of subclinical atherosclerosis, as compared to a control group of age- and sex-matched healthy individuals, and (2) to disclose PD technique-related predictors of progression of disease during a 24-month follow-up period...
February 25, 2017: Nephron
https://www.readbyqxmd.com/read/28237602/effects-of-intramuscular-injections-of-folic-acid-vitamin-b12-or-both-on-lactational-performance-and-energy-status-of-multiparous-dairy-cows
#2
M Duplessis, H Lapierre, D Pellerin, J-P Laforest, C L Girard
The purpose of this experiment was to gain understanding on changes in energy partitioning when folic acid and vitamin B12 supplements, alone or combined, were given by weekly intramuscular injections from 3 wk before the expected calving date until 7 wk postpartum. Twenty-four multiparous cows were assigned to 6 blocks of 4 cows each according to previous 305-d lactation yield to either 0 or 320 mg of folic acid and 0 or 10 mg of vitamin B12 in a 2 × 2 factorial arrangement. Plasma concentration of folates was increased by folic acid supplement, and this increase was greater with the combined supplement...
February 22, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28236062/bone-mineral-density-and-insulin-like-growth-factor-1-in-children-with-spastic-cerebral-palsy
#3
H Nazif, R Shatla, R Elsayed, E Tawfik, N Osman, S Korra, A Ibrahim
BACKGROUND: Children with cerebral palsy (CP) have significant decrease linear growth rate and low bone mineral density (BMD). AIMS: This study is to evaluate BMD in children with CP and its relation to the levels of insulin-like growth factor-1 (IGF-1). SUBJECTS AND METHODS: This cross-sectional study was carried out on 58 children suffering from spastic CP with the age range 4-12 years compared to 19 controls. All assessed by dual energy x-ray absorptiometry (DXA) to measure BMD, serum level of IGF-1, and serum vitamin D...
February 24, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28230890/effect-of-testosterone-replacement-therapy-on-vitamin-d-and-fgf-23-levels-in-congenital-hypogonadism
#4
Cem Haymana, Alper Sonmez, Aydogan Aydogdu, Serkan Tapan, Yalcin Basaran, Coskun Meric, Kamil Baskoy, Abdullah Taslipinar, Mahmut Ilker Yilmaz, Omer Azal
INTRODUCTION: Patients with hypogonadism are at increased risk of cardiac and metabolic diseases and osteoporosis. Vitamin D and Fibroblast growth factor-23 (FGF-23) play role in the regulation of bone mineral metabolism and endothelial functions. Low vitamin D levels are reported in hypogonadism, while there is no data about the effect of testosterone replacement therapy (TRT). We investigated the effect of TRT on vitamin D and FGF-23 levels along with endothelial functions and insulin resistance in hypogonadal patients...
February 23, 2017: Endokrynologia Polska
https://www.readbyqxmd.com/read/28229265/low-vitamin-d-status-and-obesity-role-of-nutritionist
#5
REVIEW
Silvia Savastano, Luigi Barrea, Maria Cristina Savanelli, Francesca Nappi, Carolina Di Somma, Francesco Orio, Annamaria Colao
Low vitamin D status and obesity have concomitantly reached epidemic levels worldwide. Up to now the direction of the association between low vitamin D status and obesity, the exact mechanisms responsible for this association and the clinical usefulness to increase vitamin D status for reducing adiposity still warrant further evaluation. The aim of the present review was to examine the current evidence linking low vitamin D status and obesity in relation to the role of the nutritionist. On the one side, considering obesity as a causal factor, low sun exposure in obese individuals due to their sedentary lifestyle and less outdoor activity, vitamin D sequestration in adipose tissue, and volumetric dilution of ingested or cutaneously synthesized vitamin D3 in the large fat mass of obese patients, might represent some of the factors playing a major role in the pathogenesis of the low vitamin D status...
February 23, 2017: Reviews in Endocrine & Metabolic Disorders
https://www.readbyqxmd.com/read/28229097/pediatric-hypovitaminosis-d-molecular-perspectives-and-clinical-implications
#6
Rafiu Ariganjoye
Vitamin D, a secosteroid, is essential for the development and maintenance of healthy bone in both the adult and pediatric populations. Low level of 25-hydroxy vitamin D (25-(OH)-D) is highly prevalent in children worldwide and has been linked to various adverse health outcomes including rickets, osteomalacia, osteomalacic myopathy, sarcopenia, and weakness, growth retardation, hypocalcemia, seizure and tetany, autism, cardiovascular diseases, diabetes mellitus, cancers (prostate, colon, breast), infectious diseases (viral, tuberculosis), and autoimmune diseases, such as multiple sclerosis and Hashimoto's thyroiditis...
2017: Global Pediatric Health
https://www.readbyqxmd.com/read/28228421/randomized-clinical-trial-in-vitamin-d-deficient-adults-comparing-replenishment-with-oral-vitamin-d3-with-narrow-band-uv-type-b-light-effects-on-cholesterol-and-the-transcriptional-profiles-of-skin-and-blood
#7
Manish P Ponda, Yupu Liang, Jaehwan Kim, Richard Hutt, Kathleen Dowd, Patricia Gilleaudeau, Mary M Sullivan-Whalen, Tori Rodrick, Dong Joo Kim, Irina Barash, Michelle A Lowes, Jan L Breslow
Background: Vitamin D deficiency, defined as a serum 25-hydroxyvitamin D [25(OH)D] concentration <20 ng/mL, is correlated with a more atherogenic lipid profile. However, oral vitamin D supplementation does not lower LDL-cholesterol concentrations or raise HDL-cholesterol concentrations. This uncoupling between association and causation may result from a failure of oral vitamin D to mimic the effect of dermally synthesized vitamin D in response to ultraviolet type B (UVB) light.Objective: We tested the hypothesis that, in vitamin D-deficient adults, the replenishment of vitamin D with UVB exposure would lower LDL-cholesterol concentrations compared with the effect of oral vitamin D3 supplementation...
February 22, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28225873/alert-for-bone-alterations-and-low-serum-concentrations-of-vitamin-d-in-patients-with-intestinal-inflammatory-disease
#8
Lorete Maria da Silva Kotze, Carolina Tabata Costa, Murilo Franco Cavassani, Renato Mitsunori Nisihara
BACKGROUND: Inflammatory bowel diseases (IBD), including Crohn's disease (CD) and ulcerative colitis (UC), are characterized by chronic inflammation of the intestine that can reduce the absorption of nutrients such as vitamin D and calcium. OBJECTIVE: To investigate bone alterations and serum levels of vitamin D in patients with IBD. METHOD: This was a cross-sectional study based on a review of medical records of patients from a private office in Curitiba, PR, Brazil...
January 1, 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28223834/bile-salt-receptor-tgr5-is-highly-expressed-in-esophageal-adenocarcinoma-and-precancerous-lesions-with-significantly-worse-overall-survival-and-gender-differences
#9
Chunhong Pang, Amy LaLonde, Tony E Godfrey, Jianwen Que, Jun Sun, Tong Tong Wu, Zhongren Zhou
Bile acid reflux in the esophagus plays an important role in the carcinogenesis of esophageal adenocarcinoma (EAC). The G-protein coupled bile acid receptor (TGR5) has been associated with the development of gastrointestinal cancer. However, little is known regarding the role of TGR5 in esophageal carcinoma and precancerous lesions. We analyzed genomic DNA from 116 EACs for copy number aberrations via Affymetrix SNP6.0 microarrays. The TGR5 gene locus was amplified in 12.7% (14/116) of the EACs. The TGR5 protein expression was also assessed using immunohistochemistry from tissue microarrays, including Barrett's esophagus (BE), low-(LGD) and high-grade dysplasia (HGD), columnar cell metaplasia (CM), squamous epithelium (SE), EAC and squamous cell carcinoma...
2017: Clinical and Experimental Gastroenterology
https://www.readbyqxmd.com/read/28223310/overexpression-of-vitamin-d-receptor-mrna-correlates-with-poor-prognosis-in-ptc
#10
June Young Choi, Jin Wook Yi, Joon-Hyop Lee, Ra-Yeong Song, Hyeong Won Yu, Hyungju Kwon, Young Jun Chai, Su-Jin Kim, Kyu Eun Lee
The purpose of this study was to assess the relationship between vitamin D receptor (VDR) mRNA expression and prognosis in papillary thyroid cancer. RNA sequencing and somatic mutation data from TCGA (the Cancer Genome Atlas) were analyzed. VDR mRNA expression was compared to clinicopathologic variables by linear regression. Tree-based classification was applied to find VDR cutoff and patients were split into low and high VDR group. Logistic regression, Kaplan-Meier analysis, differentially expressed gene (DEG) test, and pathway analysis were performed to assess differences between groups...
February 21, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/28223230/myotoxicity-of-statins-mechanism-of-action
#11
REVIEW
Patrick du Souich, Ghislaine Roederer, Robert Dufour
Statins are effective drugs to reduce cardiovascular events secondary to dyslipidemia; however, they cause frequent undesirable side effects. The incidence of statin-induced myotoxicity (SIM) is presented by 7 to 29% of patients, depending upon the report. SIM may develop in presence of abnormally high concentrations of statins in the myocyte and/or in presence of muscular conditions that may predispose to SIM. High concentrations of statins in the myocyte may occur whenever the activity of liver influx membrane transporters, namely OATP1B1, of drug metabolizing enzymes, and of liver and muscular efflux transporters, MDR1 and BCRP, is reduced...
February 14, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28222408/severe-osteoporosis-with-multiple-spontaneous-vertebral-fractures-in-a-young-male-carrying-triple-polymorphisms-in-the-vitamin-d-receptor-collagen-type-1-and-low-density-lipoprotein-receptor-related-peptide-5-genes
#12
Maria P Yavropoulou, Panagoulia Kollia, Dimitris Chatzidimitriou, Stavroula Samara, Lemonia Skoura, John G Yovos
: Osteoporosis is a common disease with a strong genetic component. Several studies have reported the vitamin D receptor (VDR), collagen type I (COL1A1), and LDL receptor-related protein 5 (LRP5) genes as the most likely candidates. However, most of the studies have been carried out in postmenopausal women and older men and show inconsistent results. CASE PRESENTATION: We report a case of a 26-year old male who presented with severe back pain of acute onset, unrelated to any kind of trauma, and diffuse myalgia...
October 2016: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28222403/muscular-effects-of-vitamin-d-in-young-athletes-and-non-athletes-and-in-the-elderly
#13
REVIEW
Nikolaos E Koundourakis, Pavlina D Avgoustinaki, Niki Malliaraki, Andrew N Margioris
Muscles are major targets of vitamin D. Exposure of skeletal muscles to vitamin D induces the expression of multiple myogenic transcription factors enhancing muscle cell proliferation and differentiation. At the same time vitamin D suppresses the expression of myostatin, a negative regulator of muscle mass. Moreover, vitamin D increases the number of type II or fast twitch muscle cells and in particular that of type IIA cells, while its deficiency causes type IIA cell atrophy. Furthermore, vitamin D supplementation in young males with low vitamin D levels increases the percentage of type IIA fibers in muscles, causing an increase in muscular high power output...
October 2016: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28222031/a-retrospective-analysis-of-longitudinal-changes-in-bone-mineral-content-in-cystic-fibrosis
#14
Adela Chirita-Emandi, Sheila Shepherd, Andreas Kyriakou, Jane D McNeilly, Carol Dryden, Donna Corrigan, Anne Devenny, Syed Faisal Ahmed
BACKGROUND: We aimed to describe the longitudinal changes in bone mineral content and influencing factors, in children with cystic fibrosis (CF). METHODS: One hundred children (50 females) had dual X-ray absorptiometry (DXA) performed. Of these, 48 and 24 children had two to three scans, respectively over 10 years of follow-up. DXA data were expressed as lumbar spine bone mineral content standard deviation score (LSBMCSDS) adjusted for age, gender, ethnicity and bone area...
February 21, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28220196/the-associations-between-serum-25-hydroxyvitamin-d-level-and-the-risk-of-total-fracture-and-hip-fracture
#15
Y Feng, G Cheng, H Wang, B Chen
: In this meta-analysis, we evaluated the association between serum 25-hydroxyvitamin D (25(OH) vitamin D) level and the risk of total fractures and hip fractures. Low serum 25(OH) vitamin D level is associated with an increased risk of total and hip fractures. INTRODUCTION: Data on the association between serum 25(OH) vitamin D level and the risk of fractures are conflicting. This study aimed to provide a summary of prospective cohort or nested case-control studies on the association between serum 25(OH) vitamin D level and the risk of total fractures and hip fractures...
February 20, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28219837/chronic-maternal-calcium-and-25-hydroxyvitamin-d-deficiency-in-wistar-rats-programs-abnormal-hepatic-gene-expression-leading-to-hepatic-steatosis-in-female-offspring
#16
Sona S Sharma, Nivedita M Jangale, Abhay M Harsulkar, Medha K Gokhale, Bimba N Joshi
Importance of calcium and vitamin D deficiency is well established in adult dyslipidemia. We hypothesized that maternal calcium and vitamin D deficiency could alter offspring's lipid metabolism. Our objective was to investigate the effect of maternal dietary calcium and vitamin D deficiency on lipid metabolism and liver function of the F1 generation offspring. intergenerational calcium-deficient (CaD) and vitamin D-deficient (VDD) models were developed by mating normal male rats with deficient females and continuing maternal-deficient diets through pregnancy and lactation...
February 8, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28219690/factors-associated-with-shorter-colonoscopy-surveillance-intervals-for-patients-with-low-risk-colorectal-adenomas-and-effects-on-outcome
#17
Joseph C Anderson, John A Baron, Dennis J Ahnen, Elizabeth L Barry, Roberd M Bostick, Carol A Burke, Robert S Bresalier, Timothy R Church, Bernard F Cole, Marcia Cruz-Correa, Adam S Kim, Leila A Mott, Robert S Sandler, Douglas J Robertson
BACKGROUND & AIMS: Endoscopists do not routinely follow guidelines to survey individuals with low-risk adenomas (LRAs, 1-2 small tubular adenomas, less than 1 cm) every 5-10 years for colorectal cancer (CRC)-many endoscopists recommend shorter surveillance intervals for these individuals. We aimed to identify reasons that endoscopists recommend shorter surveillance intervals for some individuals with LRAs and determine whether timing affects outcomes at follow-up examinations. METHODS: We collected data from 1560 individuals (45-75 years old) who participated in a prospective chemoprevention trial (of vitamin D and calcium) from 2004 through 2008...
February 17, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28218743/vitamin-d-signaling-and-melanoma-role-of-vitamin-d-and-its-receptors-in-melanoma-progression-and-management
#18
REVIEW
Andrzej T Slominski, Anna A Brożyna, Michal A Zmijewski, Wojciech Jóźwicki, Anton M Jetten, Rebecca S Mason, Robert C Tuckey, Craig A Elmets
Ultraviolet B (UVB), in addition to having carcinogenic activity, is required for the production of vitamin D3 (D3) in the skin which supplies >90% of the body's requirement. Vitamin D is activated through hydroxylation by 25-hydroxylases (CYP2R1 or CYP27A1) and 1α-hydroxylase (CYP27B1) to produce 1,25(OH)2D3, or through the action of CYP11A1 to produce mono-di- and trihydroxy-D3 products that can be further modified by CYP27B1, CYP27A1, and CYP24A1. The active forms of D3, in addition to regulating calcium metabolism, exert pleiotropic activities, which include anticarcinogenic and anti-melanoma effects in experimental models, with photoprotection against UVB-induced damage...
February 20, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28217968/payer-type-and-low-value-care-comparing-choosing-wisely-services-across-commercial-and-medicare-populations
#19
Carrie H Colla, Nancy E Morden, Thomas D Sequist, Alexander J Mainor, Zhonghe Li, Meredith B Rosenthal
OBJECTIVE: To compare low-value health service use among commercially insured and Medicare populations and explore the influence of payer type on the provision of low-value care. DATA SOURCES: 2009-2011 national Medicare and commercial insurance administrative data. DESIGN: We created claims-based algorithms to measure seven Choosing Wisely-identified low-value services and examined the correlation between commercial and Medicare overuse overall and at the regional level...
February 19, 2017: Health Services Research
https://www.readbyqxmd.com/read/28217672/effects-of-vitamin-d-deficiency-and-daily-calcium-intake-on-bone-mineral-density-and-osteoporosis-in-korean-postmenopausal-woman
#20
Seung Joo Chon, Yae Kyu Koh, Jin Young Heo, Jinae Lee, Min Kyoung Kim, Bo Hyon Yun, Byung Seok Lee, Seok Kyo Seo
OBJECTIVE: We evaluated the combined effects of vitamin D and daily calcium intake on bone mineral density (BMD) and osteoporosis in Korean postmenopausal women. METHODS: This study is a cross-sectional study consisting of 1,921 Korean postmenopausal women aged 45 to 70 years without thyroid dysfunction, from the 2008-2011 Korean National Health and Nutrition Examination Survey. Participants were classified into six groups according to serum 25-hydroxyvitamin D (25(OH)D) levels and daily calcium intake...
January 2017: Obstetrics & Gynecology Science
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