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Vitamin D and liver

M Xie, S Wang, W Huang, S S Hou
Two experiments were conducted to evaluate the effects of vitamin E on growth performance, tissue α-tocopherol, and lipid peroxidation of White Pekin ducks from hatch to 21 d of age. The 6 supplemental vitamin E levels (0, 5, 10, 20, 40, and 100 mg DL-α-tocopheryl acetate/kg) and 4 supplemental vitamin E levels (0, 10, 20, and 100 mg DL-α-tocopheryl acetate/kg) were utilized in experiments 1 and 2, respectively. All treatments were replicated 8 times using 7 ducklings per pen in experiment 1 and 6 times using 8 birds per pen in experiment 2...
March 15, 2018: Poultry Science
Anna Mazanova, Ihor Shymanskyi, Olha Lisakovska, Lala Hajiyeva, Yulia Komisarenko, Mykola Veliky
Objectives: Recent prospective studies have found the associations between type 1 diabetes (T1D) and vitamin D deficiency. We investigated the role of vitamin D in the regulation of 25OHD-1 α -hydroxylase (CYP27B1) and VDR expression in different tissues of T1D rats. Design: T1D was induced in male Wistar rats by streptozotocin (55 mg/k b.w.). After 2 weeks of T1D, the animals were treated orally with or without vitamin D3 (cholecalciferol; 100 IU/rat, 30 days)...
2018: International Journal of Endocrinology
Nashwa M Samra, Shaimaa Emad El Abrak, Hanaa H El Dash, Mona El Said El Raziky, Manal A El Sheikh
BACKGROUND: Hepatic osteodystrophy caused by vitamin D and calcium malabsorption is thought to develop in children with cholestatic liver disease leading to secondary hyperparathyroidism and rickets or osteomalacia. The aim of this study was to evaluate the dental and bone mineral densities and the serum level of vitamin D in cholestatic infants and children and to correlate this process with clinical and laboratory parameters. METHODS: This is a cross-sectional study that include 50 patients presenting with cholestasis...
March 15, 2018: Clinics and Research in Hepatology and Gastroenterology
Penny S Reynolds, Bernard J Fisher, Jacquelyn McCarter, Christopher Sweeney, Erika J Martin, Paul Middleton, Matthew Ellenberg, Evan Fowler, Donald F Brophy, Alpha A Fowler, Bruce D Spiess, Ramesh Natarajan
BACKGROUND: Coagulopathy and inflammation induced by hemorrhagic shock and traumatic injury are associated with increased mortality and morbidity. Vitamin C (VitC) is an antioxidant with potential protective effects on the pro-inflammatory and pro-coagulant pathways. We hypothesized that high-dose VitC administered as a supplement to fluid resuscitation would attenuate inflammation, coagulation dysfunction, and end-organ tissue damage in a swine model of polytrauma and hemorrhage. METHODS: Male Sinclair swine (n = 24; mean body weight 27 kg) were anesthetized, intubated, mechanically ventilated, and instrumented for physiological monitoring...
March 12, 2018: Journal of Trauma and Acute Care Surgery
Yinhua Ni, Tao Wu, Luna Yang, Yang Xu, Tsuguhito Ota, Zhengwei Fu
Oxidative stress caused free radical and mitochondrial damage plays a critical role in the progression of aging and age-related damage at the cellular and tissue levels. Antioxidant supplementation has received growing attention and the effects of antioxidant on aging are increasingly assessed in both animal and human studies. However, additional and more promising treatments that contribute to the expansion of anti-aging therapies are needed. Astaxanthin, a super antioxidant carotenoid and free radical scavenger, inhibits lipid peroxidation more potently than vitamin E...
March 10, 2018: Endocrine Journal
Sanjeev Budhathoki, Akihisa Hidaka, Taiki Yamaji, Norie Sawada, Sachiko Tanaka-Mizuno, Aya Kuchiba, Hadrien Charvat, Atsushi Goto, Satoshi Kojima, Natsuki Sudo, Taichi Shimazu, Shizuka Sasazuki, Manami Inoue, Shoichiro Tsugane, Motoki Iwasaki
OBJECTIVE: To evaluate the association between pre-diagnostic circulating vitamin D concentration and the subsequent risk of overall and site specific cancer in a large cohort study. DESIGN: Nested case-cohort study within the Japan Public Health Center-based Prospective Study cohort. SETTING: Nine public health centre areas across Japan. PARTICIPANTS: 3301 incident cases of cancer and 4044 randomly selected subcohort participants...
March 7, 2018: BMJ: British Medical Journal
Małgorzata Jamka, Anita Arslanow, Annika Bohner, Marcin Krawczyk, Susanne N Weber, Frank Grünhage, Frank Lammert, Caroline S Stokes
BACKGROUND/AIMS: Common genetic variations in vitamin D metabolism are associated with liver stiffness. Whether these genes are implicated in hepatic steatosis remains unclear. Here we aimed to analyse the association of common vitamin D pathway gene variants with liver steatosis. METHODS: Liver steatosis was assessed non-invasively in 241 patients with chronic liver conditions by controlled attenuation parameter (CAP). The following polymorphisms were genotyped using TaqMan assays: group-specific component (GC) rs7041, 7-dehydrocholesterol reductase (DHCR7) rs12785878, cytochrome P450 2R1 (CYP2R1) rs10741657, -vitamin D receptor (VDR) rs7974353...
March 7, 2018: Digestion
Bikrant Bihari Lal, Seema Alam, Rajeev Khanna, Dinesh Rawat
There are no evidence-based recommendations on the ideal dose and regimen for supplementation of vitamin D in children with chronic liver disease (CLD). This study aimed to compare the safety and efficacy of weekly and stoss regimens for treatment of vitamin D deficiency in these children. Children between the ages of 1 to 18 years with CLD and hypovitaminosis D defined by 25-OH vitamin D (25(OH)D) < 30µg/l were included. They were randomized to receive either stoss regimen (600,000 IU on day 1) or weekly (60,000 IU weekly) regimen of vitamin D...
March 4, 2018: European Journal of Pediatrics
Sanaa Kamal, Khaled K Aldossari, Dhalia Ghoraba, Sara Mahmoud Abdelhakam, Amgad H Kamal, Mohamad Bedewi, Leila Nabegh, Khaled Bahnasy, Tamer Hafez
Objective: Concomitant non-alcoholic fatty liver disease (NAFLD) and coeliac disease (CD) have not been adequately studied. This study investigated the frequency of CD among NAFLD patients and the clinicopathological and immunological patterns and outcome of concomitant NAFLD and CD. Design: This prospective longitudinal study screened patients with NAFLD for CD (tissue transglutaminase antibodies (TTGA); anti-TTGA and antiendomysial antibodies (EMA)). Patients with concomitant NAFLD and CD and patients with either NAFLD or CD were enrolled and followed...
2018: BMJ Open Gastroenterology
Holly P Quach, Tamara Dzekic, Paola Bukuroshi, K Sandy Pang
Vitamin D3 and the synthetic vitamin D analogs, 1α-hydroxyvitamin D3 [1α(OH)D3 ] and 1α-hydroxyvitamin D2 [1α(OH)D2 ], and 25-hydroxyvitamin D3 [25(OH)D3 ] were appraised for their vitamin D receptor (VDR) associated-potencies as cholesterol lowering agents in mice in vivo. These precursors require activation in vivo: 1α(OH)D3 and 1α(OH)D2 are activated by liver Cyp2r1 and Cyp27a1 to active VDR ligands, 1α,25-dihydroxyvitamin D3 [1,25(OH)2 D3 ] and 1α,25-dihydroxyvitamin D2 [1,25(OH)2 D2 ], respectively...
February 27, 2018: Biopharmaceutics & Drug Disposition
Taeyoung Yoo, Wonsuk Choi, Jin-Hee Hong, Ju-Yeon Lee, Jae-Min Kim, Il-Seon Shin, Soo Jin Yang, Paul Amminger, Michael Berk, Jin-Sang Yoon, Sung-Wan Kim
Objective: This study examined the association between vitamin D and metabolic syndrome in patients with psychotic disorders. Methods: The study enrolled 302 community-dwelling patients with psychotic disorders. Sociodemographic and clinical characteristics, including blood pressure, physical activity, and dietary habit were gathered. Laboratory examinations included vitamin D, lipid profile, fasting plasma glucose, HbA1c, liver function, and renal function. Vitamin D insufficiency was defined as <20 ng/mL...
February 28, 2018: Psychiatry Investigation
Anne Marie Uwitonze, Mohammed S Razzaque
Nutrients usually act in a coordinated manner in the body. Intestinal absorption and subsequent metabolism of a particular nutrient, to a certain extent, is dependent on the availability of other nutrients. Magnesium and vitamin D are 2 essential nutrients that are necessary for the physiologic functions of various organs. Magnesium assists in the activation of vitamin D, which helps regulate calcium and phosphate homeostasis to influence the growth and maintenance of bones. All of the enzymes that metabolize vitamin D seem to require magnesium, which acts as a cofactor in the enzymatic reactions in the liver and kidneys...
March 1, 2018: Journal of the American Osteopathic Association
Ecaterina-Constanța Barbu, Cristina-Emilia Chițu-Tișu, Mihai Lazăr, Cristina Olariu, Mihai Bojincă, Răzvan Adrian Ionescu, Daniela Adriana Ion, Ioana Anca Bădărău
Hepatic osteodystrophy is a common and frequently untreated complication, manifested as osteoporosis or osteopenia, encountered in the evolution of chronic liver diseases. This article provides a narrative review of hepatic osteodystrophy. The aim is to revise the prevalence, pathophysiology, diagnosis and management of hepatic osteodystrophy. We searched medical literature via PubMed, Google Scholar, Wiley, Science Direct, and Springer Link using respective keywords to obtain data on low bone mineral density connected to chronic liver diseases...
September 2017: Acta Clinica Croatica
Núria Guañabens, Albert Parés
Osteoporosis is a frequent complication in patients with chronic liver disease, especially in end-stages and in chronic cholestasis, in addition to nonalcoholic fatty liver disease, hemochromatosis and alcoholism. Mechanisms underlying osteoporosis are poorly understood, but osteoporosis mainly results from low bone formation. In this setting, sclerostin, a key regulator of the Wnt/ß-catenin signalling pathway which regulates bone formation, in addition to the effects of the retained substances of cholestasis such as bilirubin and bile acids on osteoblastic cells, may influence the decreased bone formation in chronic cholestasis...
February 26, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
J-Matthias Löhr, Nikola Panic, Miroslav Vujasinovic, Caroline S Verbeke
Senior people constitute the fastest growing segment of the population. The elderly are at risk for malnutrition, thought to be caused by reduced food intake or involution of the physiological capacity of the GI tract. Age-related changes are well known in other secretory organs such as liver, kidney, and intestine. The pancreas, representing a metabolically active organ with uptake and breakdown of essential nutritional components, changes its morphology and function with age. During childhood, the volume of the pancreas increases, reaching a plateau between 20-60 years, and declines thereafter...
February 23, 2018: Journal of Internal Medicine
J A Cartwright, A G Gow, E Milne, D Drummond, S Smith, I Handel, R J Mellanby
BACKGROUND: There is growing evidence linking low blood vitamin D concentration to numerous diseases in people and in dogs. Vitamin D influences cellular function by signaling through the vitamin D receptor (VDR). Little is known about which non-skeletal tissues express the VDR or how inflammation influences its expression in the dog. OBJECTIVES: To define which non-skeletal canine tissues express the VDR and to investigate expression in inflamed small intestine...
February 22, 2018: Journal of Veterinary Internal Medicine
Leila Nikniaz, Masood Shirmohammadi, Jafar Sadegh Tabrizi, Homayoun Sadeghi Bazargani, Mostafa Farahbakhsh
OBJECTIVE: The relationship between serum 25-hydroxy-vitamin D and within normal range liver enzymes in a population-based study in the northwest of Iran was investigated. METHOD: This cross-sectional study was comprised of 700 apparently healthy Iranian adults (287 men & 413 women) who participated in the major lifestyle promotion project (LPP) conducted in East Azarbaijan-Iran in 2015. The ultraviolet method and chemiluminescent immunoassay technology were respectively used for determination of the serum levels of liver enzymes (alanine aminotransferase (ALT) and aspartate aminotransferase (AST)) and 25-hydroxy-vitamin D...
February 22, 2018: International Journal for Vitamin and Nutrition Research. Journal International de Vitaminologie et de Nutrition
Chunying Gao, Michael Z Liao, Lyrialle W Han, Kenneth E Thummel, Qingcheng Mao
Vitamin D3 is an important prohormone critical for maintaining calcium and phosphate homeostasis in the body and regulating drug-metabolizing enzymes and transporters. 25OHD3 , the most abundant circulating metabolite of vitamin D3 , is further transformed to the biologically active metabolite 1α,25-(OH)2 D3 by CYP27B1 in the kidney and extra-renal tissues, and to non-active metabolites by other CYP enzymes. In addition, 25OHD3 undergoes sulfonation and glucuronidation in the liver, forming two major conjugative metabolites, 25OHD3 -3- O -sulfate (25OHD3 -S) and 25OHD3 -3- O -glucuronide (25OHD3 -G), both of which were detected in human blood and bile...
February 21, 2018: Drug Metabolism and Disposition: the Biological Fate of Chemicals
D Y Zou, T A Coudron, L S Zhang, X S Gu, W H Xu, X L Liu, H H Wu
An artificial diet formulated for continuous rearing of the predator Arma chinensis was inferior to natural prey when evaluated using life history parameters. A transcriptome analysis identified differentially expressed genes in diet-fed and prey-fed A. chinensis that were suggestive of molecular mechanisms underlying the nutritive impact of the artificial diet. Changes in the diet formulation were made based on the transcriptome analysis and tested using life history parameters. The quantity of pig liver, chicken egg, tuna fish, biotin, nicotinamide, vitamin B6, thiamine, riboflavin, vitamin C, L-glutamine, and sucrose was reduced, and wheat germ oil, calcium pantothenate and folic acid were increased...
February 21, 2018: Bulletin of Entomological Research
Isabelle Moyersoen, Carl Lachat, Koenraad Cuypers, Karin De Ridder, Brecht Devleesschauwer, Jean Tafforeau, Stefanie Vandevijvere, Margot Vansteenland, Bruno De Meulenaer, John Van Camp, Herman Van Oyen
Abstracts: Adequate intakes of fat-soluble vitamins are essential to support the growth and development of the foetus, the neonate, and the young child. By means of an online self-administered frequency questionnaire, this study aimed to evaluate the intake of vitamins A, D, E, and K in Belgian infants ( n = 455), toddlers ( n = 265), pregnant women ( n = 161), and lactating women ( n = 165). The contribution of foods, fortified foods, and supplements on the total intake was quantified. 5% of toddlers, 16% of pregnant women, and 35% of lactating women had an inadequate vitamin A intake...
February 16, 2018: Nutrients
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