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Vitamin D immune system

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https://www.readbyqxmd.com/read/29214886/clinical-and-molecular-aspects-of-lead-toxicity-an-update
#1
Prasenjit Mitra, Shailja Sharma, Purvi Purohit, Praveen Sharma
Lead toxicity is a major public health issue in developed and developing countries. Both acute and chronic lead exposure has the potential to cause many deleterious systematic effects including hypertension, frank anemia, cognitive deficits, infertility, immune imbalances, delayed skeletal and deciduous dental development, vitamin D deficiency, and gastrointestinal effects. The underlying mechanisms for all these systemic effects have not been elucidated completely. However, the most plausible cause is free radical damage...
December 7, 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/29207798/does-vitamin-d-supplementation-improve-glycaemic-control-in-children-with-type-1-diabetes-mellitus-a-randomized-controlled-trial
#2
Shreya Sharma, Niranjan Biswal, Adhisivam Bethou, Medha Rajappa, Sadish Kumar, Vickneshwaran Vinayagam
Introduction: Vitamin D endocrine system is a potential immune system modulator and has been implicated in the pathogenesis of several autoimmune diseases including Type 1 Diabetes Mellitus (T1DM). Studies have demonstrated an inverse risk relationship between T1DM and Vitamin D levels and also, shown a reduced risk of the disease with its supplementation. Aim: To evaluate the role of Vitamin D as an adjuvant in improving glycaemic control and residual pancreatic beta-cell function...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29201115/effect-of-vitamin-d-supplementation-on-procalcitonin-as-prognostic-biomarker-in-patients-with-ventilator-associated-pneumonia-complicated-with-vitamin-d-deficiency
#3
Amir Ebrahim Miroliaee, Jamshid Salamzadeh, Shervin Shokouhi, Alireza Fatemi, Seyed Hossein Ardehali, Mohammad Reza Hajiesmaeili, Zahra Sahraei
Ventilator-associated pneumonia (VAP) is a common and serious problem that develops after more than 48 h of mechanical ventilation. Improving the activity of immune system with vitamin D, and its consequent impact on prognostic biomarkers of VAP was studied in the current study. A randomized double blind placebo controlled clinical trial was designed. A total of 46 patients with VAP, who were suffering from vitamin D deficiency, were randomly allocated into the study groups of placebo (n=22) and treatment (n=24) The treatment group received 300,000 units of intramuscular vitamin D...
2017: Iranian Journal of Pharmaceutical Research: IJPR
https://www.readbyqxmd.com/read/29179679/attenuating-the-rate-of-total-body-fat-accumulation-and-alleviating-liver-damage-by-oral-administration-of-vitamin-d-enriched-edible-mushrooms-in-a-diet-induced-obesity-murine-model-is-mediated-by-an-anti-inflammatory-paradigm-shift
#4
A Drori, D Rotnemer-Golinkin, S Avni, A Drori, O Danay, D Levanon, J Tam, L Zolotarev, Y Ilan
BACKGROUND: Hypovitaminosis D is associated with many features of the metabolic syndrome, including non-alcoholic fatty liver disease. Vitamin D-enriched mushrooms extracts exert a synergistic anti-inflammatory effect. The aim of the present study is to determine the immunomodulatory effect of oral administration of vitamin D-enriched mushrooms extracts on high-fat diet (HFD) animal model of non-alcoholic steatohepatitis (NASH). METHODS: C57BL/6 mice on HFD were orally administered with vitamin D supplement, Lentinula edodes (LE) mushrooms extract, or vitamin D-enriched mushrooms extract for 25 weeks...
November 28, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/29174154/reduced-serum-vitamin-d-concentrations-in-healthy-early-lactation-dairy-cattle
#5
S J Holcombe, L Wisnieski, J Gandy, B Norby, L M Sordillo
Cattle obtain vitamin D by ingestion or cutaneous exposure to UV light. Dairy cattle diets are frequently supplemented with vitamin D to compensate for limited sun exposure or during times of increased metabolic demands, such as the periparturient period, to maintain calcium homeostasis. Whether housing and supplemental vitamin D practices supply adequate amounts of vitamin D to optimally support the transition from gestation to lactation in dairy cattle is unknown. Our objective was to determine how serum vitamin D concentrations of dairy cows change with season, age, parity, and stage of lactation...
November 22, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29160418/vitamin-d3-levels-and-nlrp3-expression-in-murine-models-of-obese-asthma-association-with-asthma-outcomes
#6
J-H Zhang, Y-P Chen, X Yang, C-Q Li
Vitamin D (25(OH)D3) is an essential nutrient that plays a role in the immune system. Serum 25(OH)D3 is found to be associated with asthma. However, the role of vitamin D in obese asthma remains unclear. Therefore, we investigated the association between vitamin D levels and asthma outcomes in a murine model of obese asthma. We also evaluated NLRP3 inflammasome activity in the pathogenesis of obese asthma. We divided 20 male Balb/c mice (3-4 weeks old) into 4 groups: normal control, asthma, obese, and obese asthma and developed an obese asthma mouse model...
November 13, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/29156936/-nutrition-and-immune-system-disorders
#7
Bricia López Plaza, Laura María Bermejo López
INTRODUCTION: Energy and nutrients obtained through food play an important role in the development and preservation of the immune system therefore any nutritional imbalance affects its competence and integrity. OBJECTIVES: Knowing the nutritional approach on different disorders of the immune system. METHODS: A review has been carried out on the most prevalent immunological disorders in developed countries, the nutritional characteristics to which they are associated and their nutritional approach...
October 15, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/29156273/contribution-of-sun-exposure-to-the-vitamin-d-dose-received-by-various-groups-of-the-spanish-population
#8
Maria-Antonia Serrano
Although the harmful effects of excessive exposure to solar ultraviolet (UV) radiation are well known, the recommended dose of UV radiation is beneficial for the synthesis of vitamin D by the skin, in addition to being useful in the treatment of various illnesses and mental problems. Numerous studies have shown that vitamin D performs important functions in the human organism, such as absorbing calcium and phosphorous and contributing to the immune system, among others. Several studies have found that a high percentage of various groups of the Spanish population suffer from vitamin D deficiency, and since very few natural foods contain vitamin D, it was considered important to determine whether groups such as schoolchildren, outdoor workers and athletes, receive enough solar radiation to produce adequate levels of vitamin D in their daily activities...
November 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29153160/a-100-year-review-calf-nutrition-and-management
#9
A F Kertz, T M Hill, J D Quigley, A J Heinrichs, J G Linn, J K Drackley
The first calf paper, published in the May 1919 issue of the Journal of Dairy Science (JDS), described factors affecting birth body weight of different breeds of calves. Other studies were done on nonmilk ingredients, growth charts were developed, and early weaning was followed to conserve milk fed to calves. Calf papers did not report use of statistics to control or record variation or to determine whether treatment means were different. Many experiments were more observational than comparative. Typically fewer than 5 calves, and sometimes 1 or 2 calves, were used per treatment...
December 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29148401/vitamin-d-and-systemic-lupus-erythematous-a-review-of-immunological-and-clinical-aspects
#10
REVIEW
Francesca Dall'Ara, Maurizio Cutolo, Laura Andreoli, Angela Tincani, Sabrina Paolino
OBJECTIVES: To review the relationships between vitamin D status and systemic lupus erythematosus (SLE) concerning immunological, clinical aspects and possible effects of supplementation in disease modulation. METHODS: The literature was reviewed up to January 2017 for studies regarding the epidemiology, pathogenesis, immunological aspects, clinical implications and supplementation strategies. The focus was mainly on studies with implications on every day clinical practice...
November 14, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29131033/adverse-reactions-to-biologics-in-psoriasis
#11
Stephen J Lockwood, Lisette M Prens, Alexa B Kimball
Psoriasis is a chronic autoimmune disease which affects millions of people worldwide. Not only can psoriasis itself be debilitating and significantly reduce an individual's quality of life, but it is also a risk factor for other systemic disorders, such as metabolic syndrome, cardiovascular disease, and malignancy. Tremendous strides were made in the treatment of psoriasis during the mid-to-late-20th century, including the emergence of topical corticosteroids and vitamin D analogs, methotrexate, systemic retinoids, and phototherapy...
2018: Current Problems in Dermatology
https://www.readbyqxmd.com/read/29124698/role-of-vitamin-d-in-rheumatoid-arthritis
#12
Mattia Bellan, Pier Paolo Sainaghi, Mario Pirisi
Vitamin D is a fat soluble hormone, with a well described role in bone health and calcium/phosphate metabolism. Recent evidences have related vitamin D to other physiological functions and pathological conditions. Specifically, vitamin D has widely proven activities on immune system and evidences suggest that it may be implicated in the pathogenesis of rheumatoid arthritis (RA). The relationship between vitamin D and RA is complex, also because a deficitary vitamin D status, which is very common in RA patients, can contribute to the increased risk of osteoporosis typical of RA...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29112476/cross-sectional-evaluation-of-plasma-vitamin-d-levels-in-a-large-cohort-of-italian-patients-with-pediatric-autoimmune-neuropsychiatric-disorders-associated-with-streptococcal-infections
#13
Stefano Stagi, Gemma Lepri, Donato Rigante, Marco Matucci Cerinic, Fernanda Falcini
BACKGROUND: Pediatric autoimmune neuropsychiatric disorders associated with streptococcal infections (PANDAS) are immune-mediated diseases characterized by obsessive-compulsive symptoms and/or tics triggered by group A Streptococcus infections. Despite the well-known action of 25-hydroxyvitamin D [25(OH)D] on different conditions driven by systemic inflammation, there are no data about the 25(OH)D status in patients with PANDAS. AIMS: To evaluate plasma 25(OH)D levels in a large cohort of children and adolescents with PANDAS and comparing the results with healthy controls...
November 7, 2017: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/29108830/vitamin-d-and-systemic-lupus-erythematosus-the-hype-and-the-hope
#14
REVIEW
Yehuda Shoenfeld, Roberto Giacomelli, Shir Azrielant, Onorina Berardicurti, John A Reynolds, Ian N Bruce
Over the past 20years, much has been written about the potential role of vitamin D in on adverse health outcomes. In recent years, evidence has accumulated regarding the effect of vitamin D on the immune system, and its different cells. Some studies have noted lower vitamin D concentrations in patients with SLE. These epidemiological data still not answer the question: is vitamin D deficiency the cause or the effect? To answer this, we will discuss the association between vitamin D deficiency and SLE and review the evidence from interventional studies...
November 3, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/29101656/impact-of-enteric-health-and-mucosal-permeability-on-skeletal-health-and-lameness-in-poultry
#15
L R Bielke, B M Hargis, J D Latorre
Intestinal barrier leakage and/or altered gut microbial composition has been shown to markedly impact both osteoblast and osteoclast activities, systemically through circulation of gut immune cells and cytokines and locally by causing inflammation of extraintestinal organs such as the liver and bone marrow. Mild cases of heightened intestinal inflammation can cause bone loss in male mice in the absence of any overt nutritional deficiencies or weight loss, which has also been shown in chickens that have been infected with Salmonella...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29101064/development-of-a-highly-sensitive-in-vitro-system-to-detect-and-discriminate-between-vitamin-d-receptor-agonists-and-antagonists-based-on-split-luciferase-technique
#16
Hiroki Mano, Shinichi Ikushiro, Nozomi Saito, Atsushi Kittaka, Toshiyuki Sakaki
Split-luciferase techniques are widely used to detect protein-protein interaction and bioactive small molecules including some hormones and vitamins. Previously, we successfully expressed chimeric proteins of luciferase and the ligand binding domain (LBD) of the vitamin D receptor (VDR), LucC-LBD-LucN in COS-7 cells. The LucC-LBD-LucN biosensor was named split-luciferase vitamin D biosensor (SLDB). This biosensor can detect and discriminate between VDR agonists and antagonists in mammalian cells. In this study, we established an in vitro screening system for VDR ligands using the SLDB proteins expressed in Escherichia coli (E...
October 31, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29077914/effects-of-dietary-vitamin-c-vitamin-e-and-alpha-lipoic-acid-supplementation-on-the-antioxidant-defense-system-and-immune-related-gene-expression-in-broilers-exposed-to-oxidative-stress-by-dexamethasone
#17
H K El-Senousey, B Chen, J Y Wang, A M Atta, F R Mohamed, Q H Nie
Vitamin C, vitamin E, and alpha-lipoic acid (ALA) are potent nutritional antioxidants, which are important for enhancing immunity. This study compared the effects of supplementation with vitamin C, vitamin E, or ALA on the antioxidant defense system and the expression of immune-related genes under oxidative stress induced by dexamethasone (DEX) in broilers. In total, 240 one-day-old female Recessive White Rock chickens were assigned randomly to either a basal diet (control group) or basal diet supplemented with vitamin C (200 mg/kg diet), vitamin E (100 mg/kg), or ALA (500 mg/kg) for 28 d starting from hatching...
October 25, 2017: Poultry Science
https://www.readbyqxmd.com/read/29074827/-update-on-recent-progress-in-vitamin-d-research-the-effects-of-vitamin-d-in-autoinflammatory-diseases
#18
Tomoka Ao, Junichi Kikuta, Masaru Ishii
Various kinds of immune cells -including dendritic cells, macrophages, T cells and B cells- express the vitamin D receptor and 1α-hydroxylase(CYP27B1). In vitro studies have shown the anti-inflammatory effect of 1,25-dihydroxyvitamin D:the active form of vitamin D. As vitamin D deficiency spread in our society, epidemiological studies have established the association between vitamin D deficiency and incidence or progression of several inflammatory diseases, including rheumatoid arthritis(RA), systemic lupus erythematosus(SLE), and multiple sclerosis(MS)...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/29073082/transcription-factor-isx-mediates-the-cross-talk-between-diet-and-immunity
#19
Made Airanthi K Widjaja-Adhi, Grzegorz Palczewski, Kali Dale, Elizabeth A Knauss, Mary E Kelly, Marcin Golczak, Alan D Levine, Johannes von Lintig
The intestinal epithelium is a major site for the conversion of dietary β-carotene to retinaldehyde by the enzyme BCO1. The majority of retinaldehyde is further metabolized to retinol (vitamin A), esterified and packaged into triacylglycerol-rich chylomicrons for bodily distribution. Some serve on-site for the synthesis of retinoic acid, a hormone-like compound, which exerts pleiotropic and dominant effects on gastrointestinal immunity. We report here that the intestine-specific homeobox protein ISX is critical to control the metabolic flow of β-carotene through this important branching point of vitamin A metabolism...
October 24, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29067439/apolipoprotein-m-increases-the-expression-of-vitamin-d-receptor-mrna-in-colorectal-cancer-cells-detected-with-duplex-fluorescence-reverse-transcription-quantitative-polymerase-chain-reaction
#20
Miao-Mei Yu, Shuang Yao, Kai-Ming Luo, Qin-Feng Mu, Yang Yu, Guang-Hua Luo, Ning Xu
Apolipoprotein M (ApoM) and the vitamin D receptor (VDR) are apolipoproteins predominantly presenting in high-density lipoprotein (HDL) and a karyophilic protein belonging to the steroid‑thyroid receptor superfamily, respectively. Previous studies have demonstrated that ApoM and VDR are associated with cholesterol metabolism, immune and colorectal cancer regulation. In order to investigate whether ApoM affected the expression of VDR in colorectal cancer cells, a single‑tube duplex fluorescence reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) system was developed to simultaneously detect the mRNA levels of VDR and GAPDH in HT‑29 cells overexpressing ApoM...
August 2017: Molecular Medicine Reports
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