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Vitamine D3

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https://www.readbyqxmd.com/read/29144817/seasonal-variation-of-vitamin-d-and-serum-thyrotropin-levels-and-its-relationship-in-a-euthyroid-caucasian-population
#1
Gautam Das, Peter N Taylor, Heather Javaid, Brian P Tennant, John Geen, Andrew Aldridge, Onyebuchi Okosieme
OBJECTIVES: It is unclear whether seasonal variations in vitamin D concentrations affect the hypothalamo-pituitary-thyroid (HPT) axis. We investigated the seasonal variability of vitamin D and serum thyrotropin (TSH) levels and their inter-relationship. METHODS: Analysis of 401 patients referred with non-specific symptoms of tiredness who had simultaneous measurements of 25(OH)D3 and thyroid function. Patients were categorised according to the season of blood sampling and their vitamin D status...
November 16, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/29143122/vitamin-d-supplementation-attenuates-oxidative-stress-in-paraspinal-skeletal-muscles-in-patients-with-low-back-pain
#2
Katarzyna Dzik, Wojciech Skrobot, Damian Jozef Flis, Mateusz Karnia, Witold Libionka, Wojciech Kloc, Jan Jacek Kaczor
PURPOSE: The aim of the study was to evaluate markers of oxidative stress and vitamin D receptor in paraspinal muscles in low back pain patients with vitamin D deficiency, with normal level of vitamin D, and after 5 weeks of vitamin D supplementation. METHODS: Patients were divided into three groups: supplemented (SUP) with vitamin D, placebo with normal concentration of vitamin D (SUF), and the placebo group with vitamin D deficiency (DEF). The concentration of serum vitamin D was measured before and after the supplementation with vitamin D (3200 IU/ day for 5 weeks)...
November 15, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29142845/parathyroid-transplantation-in-thyroid-surgery
#3
REVIEW
Marcin Barczyński, Filip Gołkowski, Ireneusz Nawrot
Permanent hypoparathyroidism following thyroid surgery is rare. Its prevalence is reported to be below 1-2% if surgery is performed by experienced thyroid surgeons. Parathyroid identification and preservation in situ with good vascular supply is the mainstay of safe thyroid surgery. However, if the parathyroid glands are damaged, autotransplantation should be undertaken to preserve their function. Parathyroid transplantation can be considered in three distinct modes of application: (I) fresh parathyroid tissue autotransplantation during thyroidectomy in order to reduce the risk of permanent hypoparathyroidism; (II) cryopreserved parathyroid tissue autotransplantation in patients with permanent hypoparathyroidism; (III) parathyroid allotransplantation in patients with permanent hypoparathyroidism when cryopreserved parathyroid tissue is not available for grafting...
October 2017: Gland Surgery
https://www.readbyqxmd.com/read/29141476/comparison-of-sun-exposure-versus-vitamin-d-supplementation-for-pregnant-women-with-vitamin-d-deficiency
#4
Maryam Hajhashemi, Azadeh Khorsandi, Fedyeh Haghollahi
INTRODUCTION: Maternal vitamin D deficiency is widespread health problem which is more important in pregnant women which affects fetus growth and bone development. The aim of this study was to evaluate the effect of sun exposure versus vitamin D supplementation for pregnant women with vitamin D deficiency. MATERIALS AND METHODS: This prospective clinical trial was performed on 87 pregnant women with vitamin D deficiency. Group A was treated with vitamin D 4000 IU per day for 10 weeks, while group B was recommended for sun exposure for 30 minutes daily (30% body surface area) for 10 weeks in summer and between 10 am-4 pm in direct sunlight...
November 15, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29137635/the-association-between-serum-25-hydroxyvitamin-d3-concentration-and-serum-lipids-in-the-rural-population-of-china
#5
Huina Ge, Hualei Sun, Teng Wang, Xinxin Liu, Xing Li, Fei Yu, Han Han, Jun Wang, Wenjie Li
BACKGROUND: Vitamin D deficiency is implicated in some diseases, including cardiovascular. Few studies have assessed the correlation between 25-hydroxyvitamin D3 [25(OH) D3] and serum lipids. In this study, we explored the correlation between serum 25(OH) D3 concentrations and serum lipids with a typical sample of the rural population in China. METHODS: Face-to-face research was used to gather some basic information. Fasting serum concentrations of 25-(OH) D3, total cholesterol (TC), triglyceride (TG), HDL cholesterol (HDL-C) and, LDL cholesterol (LDL-C) tested in the laboratory...
November 14, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29136033/sun-exposure-in-pigs-increases-the-vitamin-d-nutritional-quality-of-pork
#6
D Enette Larson-Meyer, Bennett C Ingold, Samanta R Fensterseifer, Kathleen J Austin, Perry J Wechsler, Bruce W Hollis, Andrew J Makowski, Brenda M Alexander
There is a high prevalence of vitamin D insufficiency and deficiency worldwide likely because of both limited sun-exposure and inadequate dietary intake. Meat, including pork, is not typically considered a dietary source of vitamin D, possibly because of management practices that raise pigs in confinement. This experiment determined the vitamin D content of loin and subcutaneous adipose tissue in sun-exposed finisher pigs. Two separate groups of pigs were used. The first group (28 white Landrace-Duroc) was assigned at random to either sunlight exposure (SUN) in spring and summer or confinement per standard practice (Control)...
2017: PloS One
https://www.readbyqxmd.com/read/29132734/role-of-vitamin-e-and-d3-supplementation-in-intra-cytoplasmic-sperm-injection-outcomes-of-women-with-polycystic-ovarian-syndrome-a-double-blinded-randomized-placebo-controlled-trial
#7
Farnaz Fatemi, Afsaneh Mohammadzadeh, Mohammad Reza Sadeghi, Mohammad Mehdi Akhondi, Shayan Mohammadmoradi, Koorosh Kamali, Nicknam Lackpour, Sheida Jouhari, Simin Zafadoust, Sara Mokhtar, Ladan Giahi
BACKGROUND & AIMS: Ovulation induction has been proven to impose oxidative stress during ICSI treatment cycle. Also, data indicates that PCOS women show higher oxidative markers. Available data are not convincing about which antioxidant supplements have the potential to overcome oxidative stress in PCOS subjects. The aim of this trial was to investigate the possible role of combined vitamin E and D supplementation in the ICSI outcomes (oocyte number and quality, embryo number and quality, pregnancy rate) of PCOS subjects...
April 2017: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/29127362/functional-analysis-of-vdr-gene-mutation-r343h-in-a-child-with-vitamin-d-resistant-rickets-with-alopecia
#8
Min-Hua Tseng, Shih-Ming Huang, Fu-Sung Lo, Jing-Long Huang, Chih-Jen Cheng, Hwei-Jen Lee, Shih-Hua Lin
The functional study of different mutations on vitamin D receptor (VDR) gene causing hereditary vitamin D-resistant rickets (HVDRR) remains limited. This study was to determine the VDR mutation and the mechanisms of this mutation-causing phenotype in a family with HVDRR and alopecia. Phenotype was analyzed, and in vitro functional studies were performed. The proband and his affected sister exhibited typical HVDRR with alopecia, and their biochemical and radiographic abnormalities but not alopecia responded to supraphysiological doses of active vitamin D3...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29124697/ultraviolet-b-radiation-the-vitamin-d-connection
#9
Michael F Holick
Vitamin D is known as the sunshine vitamin. During exposure to sunlight the skin transforms 7-dehydrocholesterol into vitamin D3. Throughout evolution vitamin D3 has played a pivotal role in the evolution of vertebrates. Vitamin D is not only critically important for bone health but has a multitude of other biologic functions to help reduce chronic illnesses. This Chapter reviews how vitamin D is produced in the skin, factors that affect its production and a prospective on how to obtain vitamin D from sensible sun exposure...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29124692/ultraviolet-radiations-skin-defense-damage-mechanism
#10
Dheeraj Mohania, Shikha Chandel, Parveen Kumar, Vivek Verma, Kumar Digvijay, Deepika Tripathi, Khushboo Choudhury, Sandeep Kumar Mitten, Dilip Shah
UV-radiations are the invisible part of light spectra having a wavelength between visible rays and X-rays. Based on wavelength, UV rays are subdivided into UV-A (320-400 nm), UV-B (280-320 nm) and UV-C (200-280 nm). Ultraviolet rays can have both harmful and beneficial effects. UV-C has the property of ionization thus acting as a strong mutagen, which can cause immune-mediated disease and cancer in adverse cases. Numbers of genetic factors have been identified in human involved in inducing skin cancer from UV-radiations...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29122084/vitamin-d%C3%A2-deficiency-and-its-association-with-nasal-polyposis-in-patients-with-cystic-fibrosis-and-patients-with-chronic-rhinosinusitis
#11
Iordanis Konstantinidis, Maria Fotoulaki, Ioannis Iakovou, Angelos Chatziavramidis, Vasilios Mpalaris, Kseniya Shobat, Konstantinos Markou
BACKGROUND: Currently vitamin D3 (VD3) or cholecalciferol is considered an immunomodulator that may be implicated in nasal polyposis (NP) pathophysiology. OBJECTIVES: This study aimed to investigate if deficiency of VD3 is associated with the presence of NP in patients with cystic fibrosis (CF) and patients with chronic rhinosinusitis (CRS). METHODS: In total, 152 adult participants were included in five phenotypic groups: CF with NP (CFwNP) (n = 27), CF without NP (CFsNP) (n = 31), CRS with NP (CRSwNP) (n = 32), CRS without NP (CRSsNP) (n = 30), and controls (n = 32)...
November 1, 2017: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29118423/tolerogenic-dendritic-cells-are-efficiently-generated-using-minocycline-and-dexamethasone
#12
Jae-Hee Lee, Chan-Su Park, Sundong Jang, Ji-Wan Kim, Sang-Hyeon Kim, Sukgil Song, Kyungjae Kim, Chong-Kil Lee
Tolerogenic dendritic cells (tDCs) represent a promising tool for cellular therapy against autoimmune diseases, allergies, and transplantation rejection. Numerous pharmacological agents are known to induce tDC generation. Minocycline, which has long been used as a broad-spectrum antibiotic, was recently shown to significantly increase the generation of DCs with regulatory properties. Here, we examined the effect of the combination of minocycline with dexamethasone, rapamycin, vitamin D3, and interleukin (IL)-10, which are all known inducers of tDC generation...
November 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29118054/vitamin-d-status-in-chronic-fatigue-syndrome-myalgic-encephalomyelitis-a-cohort-study-from-the-north-west-of-england
#13
Kate E Earl, Giorgos K Sakellariou, Melanie Sinclair, Manuel Fenech, Fiona Croden, Daniel J Owens, Jonathan Tang, Alastair Miller, Clare Lawton, Louise Dye, Graeme L Close, William D Fraser, Anne McArdle, Michael B J Beadsworth
OBJECTIVE: Severe vitamin D deficiency is a recognised cause of skeletal muscle fatigue and myopathy. The aim of this study was to examine whether chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) is associated with altered circulating vitamin D metabolites. DESIGN: Cohort study. SETTING: UK university hospital, recruiting from April 2014 to April 2015. PARTICIPANTS: Ninety-two patients with CFS/ME and 94 age-matched healthy controls (HCs)...
November 8, 2017: BMJ Open
https://www.readbyqxmd.com/read/29117613/evaluation-of-the-relation-between-omentin-1-and-vitamin-d-in-postmenopausal-women-with-or-without-osteoporosis
#14
O Dikker, S Bekpinar, Gul Ozdemirler, Mujdat Uysal, Muberra Vardar, Sevgi Atar, Murat Usta, Berrin Huner
Introduction Crosstalk between bone and adipose tissues is implicated in several pathologic conditions related to bone metabolism. Omentin-1, a 34-kD protein, is released from omental adipose tissue. A few studies indicated the effect of omentin-1 on bone health and bone mineral density (BMD) and the interaction of omentin-1 with vitamin D. Therefore, this study aimed to investigate the relationship between omentin-1, vitamin D, and BMD in postmenopausal women with osteoporosis compared with non-osteoporotic counterparts...
November 8, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/29115687/epidemiological-survey-from-2009-to-2012-of-psoriatic-patients-in-japanese-society-for-psoriasis-research
#15
Toshihiro Ito, Hidetoshi Takahashi, Akira Kawada, Hajime Iizuka, Hidemi Nakagawa
Since 1982, the Japanese Society for Psoriasis Research has conducted annual epidemiological surveys of patients with psoriasis. Kawada et al. have reported data for 1982-2001 and Takahashi et al. have reported data for 2002-2008. The present study evaluated 9290 psoriatic cases according to age and sex (2009-2012). The male : female ratio was 2.08:1 (6281 male patients [67.6%] to 3009 female patients [32.4%]). The most prevalent type was psoriasis vulgaris (85.6% of all cases), which was followed by psoriasis arthropathica (6...
November 8, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/29115640/off%C3%A2-target-effect-of-imatinib-and-nilotinib-on-human-vitamin-d3-metabolism
#16
Lysann Kroschwald, Meinolf Suttorp, Josephine Tabea Tauer, Nick Zimmermann, Claudia Günther, Andrea Bauer
Prolonged treatment with tyrosine kinase inhibitors (TKI) including imatinib (IMA) or nilotinib (NIL), induces severe disturbances of bone metabolism in patients with chronic myeloid leukaemia. As vitamin D3 (VD3) is involved in the complex cycle of bone remodelling, the present study investigated in vitro, the influence of IMA and NIL on VD3 metabolism i) in HaCaT cells and ii) in cultured outer root sheath keratinocytes (ORS‑KC) from hair follicles of IMA treated children. Cells were incubated in the presence of IMA or NIL...
November 3, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29114901/allergic-contact-dermatitis-caused-by-calcipotriol
#17
Liesbeth Gilissen, Sara Huygens, An Goossens
BACKGROUND: Calcipotriol, a synthetic vitamin D analogue, is widely used for the topical treatment of psoriasis. It often causes irritant reactions, whereas allergic contact dermatitis has less commonly been reported. OBJECTIVES: To report on 6 patients (among them an 11-year-old child) who presented with eczematous lesions complicating pre-existing dermatitis, observed in our tertiary referral patch test clinic between 2004 and 2016. METHODS: Patch tests were performed with the commercial preparation used by the patients and/or its ingredients, including calcipotriol (2 or 10 µg/ml in isopropyl alcohol), according to ESCD patch test guidelines...
November 8, 2017: Contact Dermatitis
https://www.readbyqxmd.com/read/29114875/circulating-concentrations-of-vitamin-d-in-relation-to-pancreatic-cancer-risk-in-european-populations
#18
Fränzel J B van Duijnhoven, Mazda Jenab, Kristian Hveem, Peter D Siersema, Veronika Fedirko, Eric J Duell, Ellen Kampman, Anouk Halfweeg, Henk J van Kranen, Jody M W van den Ouweland, Elisabete Weiderpass, Neil Murphy, Arnulf Langhammer, Eivind Ness-Jensen, Anja Olsen, Anne Tjønneland, Kim Overvad, Claire Cadeau, Marina Kvaskoff, Marie-Christine Boutron-Ruault, Verena A Katzke, Tilman Kühn, Heiner Boeing, Antonia Trichopoulou, Anastasia Kotanidou, Maria Kritikou, Domenico Palli, Claudia Agnoli, Rosario Tumino, Salvatore Panico, Giuseppe Matullo, Petra Peeters, Magritt Brustad, Karina Standahl Olsen, Cristina Lasheras, Mireia Obón-Santacana, María-José Sánchez, Miren Dorronsoro, Maria-Dolores Chirlaque, Aurelio Barricarte, Jonas Manjer, Martin Almquist, Frida Renström, Weimin Ye, Nick Wareham, Kay-Tee Khaw, Kathryn E Bradbury, Heinz Freisling, Dagfinn Aune, Teresa Norat, Elio Riboli, H Bas Bueno-de-Mesquita
Evidence from in vivo, in vitro and ecological studies are suggestive of a protective effect of vitamin D against pancreatic cancer. However, this has not been confirmed by analytical epidemiological studies. We aimed to examine the association between pre-diagnostic circulating vitamin D concentrations and pancreatic cancer incidence in European populations. We conducted a pooled nested case-control study within the European Prospective Investigation into Cancer and Nutrition (EPIC) and the Nord-Trøndelag Health Study's second survey (HUNT2) cohorts...
November 7, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29112461/calcium-and-vitamin-d-supplementation-in-boys-with-risperidone-induced-hyperprolactinemia-a-randomized-placebo-controlled-pilot-study
#19
Chadi A Calarge, James A Mills, Ekhard E Ziegler, Janet A Schlechte
BACKGROUND: The chronic use of antipsychotics has been associated with impaired bone mineralization, partially mediated by hyperprolactinemia. We examined if calcium and vitamin D supplementation promote bone mineral accrual in boys with risperidone-induced hyperprolactinemia. METHODS: Between February 2009 and November 2013, medically healthy, 5- to 17-year-old boys were enrolled in a 36-week double-blind, placebo-controlled study, examining the skeletal effects of supplementation with 1250 mg calcium carbonate and 400 IU of vitamin D3 in risperidone-induced hyperprolactinemia...
November 7, 2017: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/29112142/igfbp-3-interacts-with-the-vitamin-d-receptor-in-insulin-signaling-associated-with-obesity-in-visceral-adipose-tissue
#20
Inmaculada Moreno-Santos, Daniel Castellano-Castillo, María Fernanda Lara, Jose Carlos Fernandez-Garcia, Francisco Jose Tinahones, Manuel Macias-Gonzalez
Adipose tissue has traditionally only been considered as an energy storage organ. Nevertheless, the importance of this tissue in systemic physiology and, especially, in systemic inflammation has been highlighted in recent years. Adipose tissue expresses proteins related to vitamin D (VD) metabolism, and it has been proposed that it can act as a VD storage tissue. The active form of VD, 1,25-dihydroxyvitamin D3 (1,25(OH)₂D₃), is able to modify adipocyte and adipose tissue physiology via the VD receptor (VDR), decreasing the expression of pro-inflammatory cytokines in adipose tissue...
November 7, 2017: International Journal of Molecular Sciences
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