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Vitamin D and liver

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https://www.readbyqxmd.com/read/28201969/vitamin-d-and-cancer-stem-cells-in-the-gastrointestinal-tract
#1
Ming-Xing Li, Long-Fei Li, Lin Zhang, Zan-Gang Xiao, Jing Shen, Wei Hu, Qiang Zeng, Chi-Hin Cho
Vitamin D has been widely used as a dietary supplement for the prevention and treatment of bone disorders. Epidemiological and preclinical studies demonstrated the anticancer action of vitamin D in a variety of cancers including those in the gastrointestinal (GI) tract. In these studies the inhibitory action of vitamin D on cancer stem cells (CSCs) has been a focus and is also an important subject to revolutionize the therapeutic potential of vitamin D on cancer treatment. Here, we summarize the involvement of CSC markers and factors and also their signaling pathways in the development of cancers in the esophagus, stomach, colon, pancreas and also liver...
February 14, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28193074/cobalamin-concentrations-in-fetal-liver-show-gender-differences-a-result-from-using-a-high-pressure-liquid-chromatography-inductively-coupled-plasma-mass-spectrometry-as-an-ultratrace-cobalt-speciation-method
#2
Janine Bosle, Sven Goetz, Andrea Raab, Eva M Krupp, Kirk G Scheckel, Enzo Lombi, Andrew A Meharg, Paul A Fowler, Jörg Feldmann
Maternal diet and lifestyle choices may affect placental transfer of cobalamin (Cbl) to the fetus. Fetal liver concentration of Cbl reflects nutritional status with regards to vitamin B12, but at these low concentration current Cbl measurement methods lack robustness. An analytical method based on enzymatic extraction with subsequent reversed-phase-high-pressure liquid chromatography (RP-HPLC) separation and parallel ICPMS and electrospray ionization (ESI)-Orbitrap-MS to determine specifically Cbl species in liver samples of only 10-50 mg was developed using 14 pig livers...
December 20, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/28187310/proteomic-analysis-of-liver-tissue-from-rainbow-trout-oncorhynchus-mykiss-under-high-rearing-density-after-administration-of-dietary-vitamin-e-and-selenium-nanoparticles
#3
Mahdi Naderi, Saeed Keyvanshokooh, Amir Parviz Salati, Alireza Ghaedi
The aim of the present study was to investigate the effects of dietary vitamin E (vit E) and selenium nanoparticles (nanoSe) on liver proteome profile of rainbow trout under high density condition. To correlate the proteome modifications with physiological aspects, growth, serum metabolites (cortisol, glucose, lactate, ALT, AST, and ALP), and liver antioxidant-related parameters (SOD, GPx, CAT, and MDA) were also examined. A total of 1275 fish (average weight of 42.6±2.3g) were stocked into 12 tanks at a density of 80kgm(-3)...
February 4, 2017: Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics
https://www.readbyqxmd.com/read/28177366/cobalt-supplementation-alone-or-in-combination-with-vitamin-b-and-selenium-effects-on-lamb-performance-and-mineral-status
#4
T W J Keady, J P Hanrahan, S P Fagan
The effects of supplementing lambs with Co, either alone or in combination with vitamin B and Se, were evaluated over the period from weaning to selection for slaughter. Two hundred and five recently weaned (at 14 wk [SD 0.44] of age), spring-born lambs of various crossbred genotypes were stratified, within genotype, by BW and gender and allocated to 3 groups, which were then allocated at random to one of the following treatments: no supplement (Control), a supplement containing Co only (Co-only), or a supplement containing Co, vitamin B, and Se (VitMin)...
January 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28176881/functional-coupling-of-human-microphysiology-systems-intestine-liver-kidney-proximal-tubule-blood-brain-barrier-and-skeletal-muscle
#5
Lawrence Vernetti, Albert Gough, Nicholas Baetz, Sarah Blutt, James R Broughman, Jacquelyn A Brown, Jennifer Foulke-Abel, Nesrin Hasan, Julie In, Edward Kelly, Olga Kovbasnjuk, Jonathan Repper, Nina Senutovitch, Janet Stabb, Catherine Yeung, Nick C Zachos, Mark Donowitz, Mary Estes, Jonathan Himmelfarb, George Truskey, John P Wikswo, D Lansing Taylor
Organ interactions resulting from drug, metabolite or xenobiotic transport between organs are key components of human metabolism that impact therapeutic action and toxic side effects. Preclinical animal testing often fails to predict adverse outcomes arising from sequential, multi-organ metabolism of drugs and xenobiotics. Human microphysiological systems (MPS) can model these interactions and are predicted to dramatically improve the efficiency of the drug development process. In this study, five human MPS models were evaluated for functional coupling, defined as the determination of organ interactions via an in vivo-like sequential, organ-to-organ transfer of media...
February 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28176238/vitamin-d-status-in-patients-with-cirrhosis-of-the-liver-and-their-relatives-a-case-control-study-from-north-india
#6
Ravikant Kumar, Pavan Kumar, Kandarp Nath Saxena, Manjul Mishra, Vivek Kumar Mishra, Anju Kumari, Manisha Dwivedi, Sri Prakash Misra
BACKGROUND AND AIM: Liver diseases interfere with the production of the metabolites of vitamin D required for activation, thus resulting in abnormal calcium and bone metabolism. Previous studies show inconsistent results of vitamin D level in non-cholestatic liver diseases. Our aim was to determine the prevalence of vitamin D insufficiency in cirrhosis as compared to apparently normal relatives and its relationship with etiology and severity. METHODS: One hundred and sixty cirrhotic patients attending the Department of Gastroenterology and Hepatology, M L N Medical College, Allahabad, were enrolled, and 25-hydroxy vitamin D [25(OH)D] and calcium levels assessed...
February 8, 2017: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
https://www.readbyqxmd.com/read/28164523/effect-of-serum-vitamin-d-levels-on-cellular-immunity-and-antiviral-effects-in-chronic-hepatitis-b-patients
#7
Li-Jie He, He-Ping Zhang, Hong-Juan Li, Jing Wang, Dan-Dan Chang
BACKGROUND: To study the effect of 25-hydroxyl vitamin D3 on peripheral blood T lymphocyte immune function and antiviral effects in chronic hepatitis B patients. METHODS: The clinical data for 70 patients with chronic hepatitis B were analyzed. Serum 25-hydroxyl vitamin D was determined by electrochemical luminescence, and hepatitis B virus serological markers were determined by fluorescence quantitative polymerase chain reaction. Subsets of T lymphocytes were determined by immune fluorescence labeling method...
October 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28161177/influence-of-conjugated-linoleic-acid-and-vitamin-e-on-performance-energy-metabolism-and-change-of-fat-depot-mass-in-transitional-dairy-cows
#8
S Schäfers, D von Soosten, U Meyer, C Drong, J Frahm, J Kluess, C Raschka, J Rehage, A Tröscher, W Pelletier, S Dänicke
The objective of this experiment was to determine the effects of conjugated linoleic acid (CLA) and vitamin E as well as their interaction on performance variables and lipomobilization during late pregnancy and early lactation (wk 6 antepartum until wk 10 postpartum). For this purpose, 59 pluriparous German Holstein cows were assigned to 4 dietary groups in a 2 × 2 design with the factors CLA and vitamin E at 2 levels. For this trial, we selected cows with a high body condition score because they are more likely to mobilize fat and consequently are at a higher risk of developing ketosis...
February 1, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28155141/compliance-to-the-joint-commission-proposed-core-measure-set-on-osteoporosis-associated-fracture-review-of-different-secondary-fracture-prevention-programs-in-an-open-medical-system-from-2010-to-2015
#9
Ma Conchitina Fojas, Lauren T Southerland, Laura S Phieffer, Julie A Stephens, Tanya Srivastava, Steven W Ing
: There are care gaps in the evaluation and treatment of osteoporosis after a fragility fracture. The Joint Commission is considering adoption of core measures. We compared compliance between two secondary fracture prevention programs in our institution. Incorporating strengths of both may provide the best outcomes for secondary fracture prevention. PURPOSE: There are significant care gaps in the evaluation and treatment of osteoporosis after occurrence of fragility fracture...
December 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/28148686/maize-milling-method-affects-growth-and-zinc-status-but-not-provitamin-a-carotenoid-bioefficacy-in-male-mongolian-gerbils
#10
Bryan M Gannon, Kevin V Pixley, Sherry A Tanumihardjo
BACKGROUND: Vitamin A (VA) and zinc deficiencies are prevalent. Maize is a common staple, and milling affects nutrient and nutrient-modifier profiles. OBJECTIVE: We investigated the interaction of maize milling methods (i.e., whole grain compared with refined) in male Mongolian gerbils aged 29-35 d with conventionally bred provitamin A-biofortified (orange) or white maize on VA and zinc status. METHODS: Study 1 (n = 67) was a 2 × 3 milling (whole compared with refined) by VA [no-vitamin A placebo group (VA-), orange, and VA-supplemented group (VA+)] design, with 4 wk of VA depletion followed by six 4-wk treatments (n = 10/treatment)...
February 1, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28146070/decreased-expression-of-vitamin-d-receptor-affects-an-immune-response-in-primary-biliary-cholangitis-via-the-vdr-mirna155-socs1-pathway
#11
Agnieszka Kempinska-Podhorodecka, Malgorzata Milkiewicz, Urszula Wasik, Joanna Ligocka, Michał Zawadzki, Marek Krawczyk, Piotr Milkiewicz
Primary biliary cholangitis (PBC) is an immune-mediated cholestatic disease. Vitamin D receptor (VDR)-dependent signaling constrains an inflammatory response by targeting the miRNA155-SOCS1 (suppressor of cytokine signaling 1) axis. The VDR-miRNA155-SOCS1 pathway was investigated in the context of the autoimmune response associated with PBC. Human liver tissues from non-cirrhotic PBC (n = 22), cirrhotic PBC (n = 22), cirrhotic primary sclerosing cholangitis (PSC, n=13), controls (n = 23), and peripheral blood mononuclear cells (PBMC) obtained from PBC (n = 16) and PSC (n = 10) patients and healthy subjects (n = 11) were used for molecular analyses...
January 29, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28145056/1-25-oh-2-d3-attenuates-hepatic-steatosis-by-inducing-autophagy-in-mice
#12
Renlong Li, Enshuang Guo, Jiankun Yang, Anyi Li, Yan Yang, Shenpei Liu, Anding Liu, Xiaojing Jiang
OBJECTIVE: 1,25(OH)2 D3 has been reported to attenuate liver steatosis; however, its exact mechanism of action remains poorly understood. This study aimed to determine whether 1,25(OH)2 D3 can attenuate hepatic steatosis by inducing autophagy. METHODS: Male C57BL/6 mice fed a high-fat diet (HFD) were injected with 1,25(OH)2 D3 for 4 weeks. These mice were given 3-methyladenine (3-MA) to inhibit autophagy. HepG2 cells were preincubated with a free fatty acid (FFA) and then treated with 1,25(OH)2 D3 ...
February 1, 2017: Obesity
https://www.readbyqxmd.com/read/28139795/sunlight-exposure-is-just-one-of-the-factors-which-influence-vitamin-d-status
#13
M Abboud, M S Rybchyn, R Rizk, D R Fraser, R S Mason
Studies on the determinants of vitamin D status have tended to concentrate on input - exposure to ultraviolet B radiation and the limited sources in food. Yet, vitamin D status, determined by circulating concentrations of 25-hydroxyvitamin D (25(OH)D), can vary quite markedly in groups of people with apparently similar inputs of vitamin D. There are small effects of polymorphisms in the genes for key proteins involved in vitamin D production and metabolism, including 7-dehydrocholesterol reductase, which converts 7-dehydrocholesterol, the precursor of vitamin D, to cholesterol, CYP2R1, the main 25-hydroxylase of vitamin D, GC, coding for the vitamin D binding protein which transports 25(OH)D and other metabolites in blood and CYP24A1, which 24-hydroxylates both 25(OH)D and the hormone, 1,25-dihydroxyvitamin D...
January 31, 2017: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/28139365/vitamin%C3%A2-a-in-pediatrics-an-update-from-the-nutrition-committee-of-the-french-society-of-pediatrics
#14
M Vidailhet, D Rieu, F Feillet, A Bocquet, J-P Chouraqui, D Darmaun, C Dupont, M-L Frelut, J-P Girardet, R Hankard, J-C Rozé, U Siméoni, D Turck, A Briend
Vitamin A (retinol) fulfills multiple functions in vision, cell growth and differentiation, embryogenesis, the maintenance of epithelial barriers and immunity. A large number of enzymes, binding proteins and receptors facilitate its intestinal absorption, hepatic storage, secretion, and distribution to target cells. In addition to the preformed retinol of animal origin, some fruits and vegetables are rich in carotenoids with provitamin A precursors such as β-carotene: 6μg of β-carotene corresponds to 1μg retinol equivalent (RE)...
January 27, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28119885/vitamin-d-status-and-its-associations-with-rheumatoid-arthritis-in-korean-women-the-korean-national-health-and-nutrition-examination-survey-2008-2014
#15
Taeck-Hyun Lee, Woo Sung Jin, Juwon Park, Hyun-Hee Choi, Eun Jin Bae
In the present study, vitamin D status and its associations with rheumatoid arthritis in Korean women were investigated. Total 2,162 women's data from the Korea National Health and Nutrition Examination Survey during 2008-2014 ware analyzed by complex sampling design logistic regression analysis and complex sampling design general linear model. Women who over 19 years old were included, and who has osteoporosis or abnormal parathyroid hormone or renal failure or liver cirrhosis or abnormal creatinine were excluded...
December 2016: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28119248/concentrations-of-vitamin-a-e-thyroid-and-testosterone-hormones-in-blood-plasma-and-tissues-from-emaciated-adult-male-arctic-foxes-vulpes-lagopus-dietary-exposed-to-persistent-organic-pollutants-pops
#16
Tonje W Rogstad, Christian Sonne, Gro D Villanger, Øystein Ahlstøm, Eva Fuglei, Derek C G Muir, Even Jørgensen, Bjørn Munro Jenssen
The aim of the present study was to investigate the relationships and effects of oral POP exposure on retinol (vitamin A), α-tocopherol (vitamin E), thyroid hormones and testosterone in emaciated adult farmed Arctic foxes. Eight brother-pairs were exposed to either a diet containing naturally POP-contaminated minke whale blubber (Balaenoptera acutorostrata) (n=8), or a control diet containing pig (Sus scrofa) fat as the primary fat source (n=8) for 22 months. In the whale blubber containing feed the ∑POPs concentration was 802ng/g w...
January 21, 2017: Environmental Research
https://www.readbyqxmd.com/read/28114934/effect-of-a-retinoid-x-receptor-partial-agonist-on-airway-inflammation-and-hyperresponsiveness-in-a-murine-model-of-asthma
#17
Utako Fujii, Nobuaki Miyahara, Akihiko Taniguchi, Naohiro Oda, Daisuke Morichika, Etsuko Murakami, Hikari Nakayama, Koichi Waseda, Mikio Kataoka, Hiroki Kakuta, Mitsune Tanimoto, Arihiko Kanehiro
BACKGROUND: Retinoid X receptors (RXRs) are members of the nuclear receptor (NR) superfamily that mediate signaling by 9-cis retinoic acid, a vitamin A (retinol) derivative. RXRs play key roles not only as homodimers but also as heterodimeric partners-e.g., retinoic acid receptors (RARs), vitamin D receptors (VDRs), liver X receptors (LXRs), and peroxisome proliferator-activated receptors (PPARs). The NR family was recently associated with allergic diseases, but the role of RXRs in allergen-induced airway responses is not well defined...
January 23, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28108628/metabolic-reprogramming-by-folate-restriction-leads-to-a-less-aggressive-cancer-phenotype
#18
Zahra Ashkavand, Ciara O'Flanagan, Mirko Hennig, Xiuxia Du, Stephen D Hursting, Sergey A Krupenko
: Folate coenzymes are involved in biochemical reactions of one-carbon transfer, and deficiency of this vitamin impairs cellular proliferation, migration, and survival in many cell types. Here, the effect of folate restriction on mammary cancer was evaluated using three distinct breast cancer subtypes differing in their aggressiveness and metastatic potential: noninvasive basal-like (E-Wnt), invasive but minimally metastatic claudin-low (M-Wnt), and highly metastatic claudin-low (metM-Wnt(liver)) cell lines, each derived from the same pool of MMTV-Wnt-1 transgenic mouse mammary tumors...
January 20, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28098047/vitamin-a-deficiency-suppresses-fish-immune-function-with-differences-in-different-intestinal-segments-the-role-of-transcriptional-factor-nf-%C3%AE%C2%BAb-and-p38-mitogen-activated-protein-kinase-signalling-pathways
#19
Li Zhang, Lin Feng, Wei-Dan Jiang, Yang Liu, Pei Wu, Sheng-Yao Kuang, Ling Tang, Wu-Neng Tang, Yong-An Zhang, Xiao-Qiu Zhou
The present study investigated the effects of dietary vitamin A on immune function in the proximal intestine (PI), mid intestine (MI) and distal intestine (DI) of young grass carp (Ctenopharyngodon idella). Fish were fed graded levels of dietary vitamin A for 10 weeks, and then a challenge test using an injection of Aeromonas hydrophila was conducted for 14 d. The results showed that, compared with the optimum vitamin A level, vitamin A deficiency significantly decreased fish growth performance, increased enteritis morbidity, decreased intestinal innate humoral immune response and aggravated intestinal inflammation...
January 18, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28079241/is-there-an-association-between-vitamin-d-and-liver-fibrosis-in-patients-with-chronic-hepatitis-c
#20
Kalinca da Silva Oliveira, Caroline Buss, Cristiane Valle Tovo
BACKGROUND: - Vitamin D is known for its immunomodulatory, anti-inflammatory and antifibrotic properties, which are quite relevant in the pathogenesis and treatment of many causes of chronic liver disease. OBJECTIVE: - This study aimed to evaluate the association between serum vitamin D levels and the histopathological findings in patients with chronic hepatitis C virus infection. METHODS: - Cross-sectional study composed of patients with chronic hepatitis C...
January 2017: Arquivos de Gastroenterologia
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