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Vitamin D and liver

Su Jin Lee, Jeong Han Kang, Da Eun Lee, Min Jeong Nam, Hyun-Shik Lee, Oh-Shin Kwon
Chronic alcohol consumption causes hepatic steatosis, which is characterized by a considerable increase in free fatty acid (FFA) and triglyceride levels. To identify the possible proteins involved in the progression to alcoholic hepatosteatosis, we performed proteomic analysis on livers of mice exposed to alcohol. 2D-based proteomic analysis revealed that EtOH exposure in mice changed the expression of 43 proteins compared with that in mice fed a normal diet (ND). The most notable protein changes were proteins involved in Met metabolism and oxidative stress, most of which were significantly downregulated in alcohol-exposed animals...
October 20, 2016: Journal of Cellular Biochemistry
Jae Cheol Kim, Bruce P Mullan, John L Black, Robert J E Hewitt, Robert J van Barneveld, John R Pluske
BACKGROUND: This experiment was conducted to test the hypothesis that vitamin E (Vit E) and acetylsalicylic acid (ASA), a cyclooxygenase-2 (COX-2) inhibitor, will additively reduce the production of the immunosuppressive molecule prostaglandin E2 (PGE2) and hence reduce inflammatory responses in weaner pigs experimentally infected with an enterotoxigenic strain of E. coli. METHODS: The experiment was conducted in a research facility with 192 individually-housed male weaner pigs (Landrace × Large White) weighing 6...
2016: Journal of Animal Science and Biotechnology
Angeles Duran, Eloy D Hernandez, Miguel Reina-Campos, Elias A Castilla, Shankar Subramaniam, Sindhu Raghunandan, Lewis R Roberts, Tatiana Kisseleva, Michael Karin, Maria T Diaz-Meco, Jorge Moscat
Hepatic stellate cells (HSCs) play critical roles in liver fibrosis and hepatocellular carcinoma (HCC). Vitamin D receptor (VDR) activation in HSCs inhibits liver inflammation and fibrosis. We found that p62/SQSTM1, a protein upregulated in liver parenchymal cells but downregulated in HCC-associated HSCs, negatively controls HSC activation. Total body or HSC-specific p62 ablation potentiates HSCs and enhances inflammation, fibrosis, and HCC progression. p62 directly interacts with VDR and RXR promoting their heterodimerization, which is critical for VDR:RXR target gene recruitment...
October 10, 2016: Cancer Cell
Rahul Sethia, B K Tripathi, M Singh
No abstract text is available yet for this article.
January 2016: Journal of the Association of Physicians of India
Hamid Lorvand Amiri, Shahram Agah, Javad Tolouei Azar, Sharieh Hosseini, Farzad Shidfar, Seyedeh Neda Mousavi
BACKGROUND & AIMS: Despite evidence for beneficial effects of vitamin D, to our knowledge, no study has compared the effects of calcium supplementation with vitamin D on non-alcoholic fatty liver disease (NAFLD) regression during a hypo-energetic program. We compared the effect of the vitamin D supplementation with and without calcium on anthropometric measures and biochemical parameters in NAFLD patients during a weight-loss program. METHODS: A 12-week, randomized, controlled, double-blind trial was conducted in 120 NAFLD patients randomly assigned to receive 25 μg calcitriol (n = 37), 500 mg calcium carbonate + 25 μg calcitriol (n = 37), or placebo (n = 36) every day with their lunch meals while following a weight-loss program...
September 28, 2016: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
Junling Fu, Cong Hou, Lujiao Li, Dan Feng, Ge Li, Mingyao Li, Changhong Li, Shan Gao, Ming Li
BACKGROUND: Betatrophin has been recently reported to play a role in glucose homeostasis by inducing beta-cell proliferation in mice. However, studies in human are inconsistent. As a nutritionally-regulated liver-enriched factor, we hypothesize that betatrophin might be regulated by vitamin D, and ignorance of vitamin D status may explain the discrepancy in previous human studies. The aims of this study were to assess the association between circulating betatrophin and glucose homeostasis as well as other cardiometabolic variables in a cohort of youths at risk for metabolic syndrome and test the possible influence of vitamin D status on the association...
October 6, 2016: Cardiovascular Diabetology
Erina Kitagawa, Tatsuya Yamamoto, Mayuko Fujishita, Yuki Ota, Kohei Yamamoto, Tomoyuki Nakagawa, Takashi Hayakawa
We investigated the efficacy of supplementing the diet with choline or betaine in ameliorating lipid accumulation induced by vitamin B6 (B6) deficiency in rat liver. Male Wistar rats were fed a control, B6-deficient, choline-supplemented (2, 4, or 6 g choline bitartrate/kg diet) B6-deficient diet or betaine-supplemented (1, 2, or 4 g betaine anhydrous/kg diet) B6-deficient diet for 35 d; all diets contained 9 g L-methionine (Met)/kg diet. Choline or betaine supplementation attenuated liver lipid deposition and restored plasma lipid profiles to control levels...
October 4, 2016: Bioscience, Biotechnology, and Biochemistry
Abdelghany Hassan Abdelghany, Mohammad A BaSalamah, Shakir Idris, Jawwad Ahmad, Bassem Refaat
BACKGROUND: Vitamin D (VitD) and thymoquinone (TQ) are nutraceutical agents with well-known immunomodulatory and hepatoprotective properties. This study measured whether VitD and TQ, individually or combined, could have direct fibrolytic activities and/or enhanced performance during remedial treatment of liver fibrosis established by CCl4 in rats. METHODS: Eighty five male Wistar rats were used as 10 negative controls (NC) and the remainders were distributed equally into 5 groups: short (S-PC) and long (L-PC) positive controls, TQ, VitD and VitD/TQ groups...
September 29, 2016: Journal of Translational Medicine
K Cheng, Z H Song, X C Zheng, H Zhang, J F Zhang, L L Zhang, Y M Zhou, T Wang
Reactive oxygen species and free radicals play multiple roles in some immune-pathological events. Vitamin E, as a very potent antioxidant, perhaps deceases the potentially negative effects of such oxidative stress to prevent immune-pathological damage to broilers. Therefore, the current study investigated the effects of dietary natural (D-α-tocopherol) and synthetic (DL-α-tocopherol acetate) vitamin E on the growth performance and antioxidant capacity in cyclophosphamide (CY) immunosuppressed broilers. 192 one-day-old male Arbor Acre broilers were randomly distributed into 4 groups: 1) non-CY-challenged control; 2) CY-challenged control; 3) CY-challenged group+20 IU DL-α-tocopherol acetate per kg feed; and 4) CY-challenged group+20 IU D-α-tocopherol per kg feed...
September 24, 2016: Poultry Science
Giovanni Musso, Maurizio Cassader, Solomon Cohney, Franco De Michieli, Silvia Pinach, Francesca Saba, Roberto Gambino
Chronic kidney disease (CKD) is a risk factor for end-stage renal disease (ESRD) and cardiovascular disease (CVD). ESRD or CVD develop in a substantial proportion of patients with CKD receiving standard-of-care therapy, and mortality in CKD remains unchanged. These data suggest that key pathogenetic mechanisms underlying CKD progression go unaffected by current treatments. Growing evidence suggests that nonalcoholic fatty liver disease (NAFLD) and CKD share common pathogenetic mechanisms and potential therapeutic targets...
October 2016: Diabetes Care
Nghiem Xuan Hoan, Nguyen Khuyen, Mai Thanh Binh, Dao Phuong Giang, Hoang Van Tong, Phan Quoc Hoan, Ngo Tat Trung, Do Tuan Anh, Nguyen Linh Toan, Christian G Meyer, Peter G Kremsner, Thirumalaisamy P Velavan, Le Huu Song
BACKGROUND: As an immune modulator, vitamin D is involved in various pathophysiological mechanisms in a plethora of diseases. This study aims to correlate the vitamin D deficiency status and clinical progression of liver diseases associated with hepatitis B virus (HBV) infection in patients in Vietnam and to compare it to healthy controls. METHODS: We quantified the levels of total vitamin D [25-(OH) D2 and D3] in serum samples from 400 HBV patients (chronic hepatitis B infection [CHB], n = 165; HBV-associated liver cirrhosis [LC], n = 127; HBV-associated hepatocellular carcinoma [HCC], n = 108) and 122 unrelated healthy controls (HC)...
2016: BMC Infectious Diseases
Evgeniy A Khizhkin, Victor A Ilukha, Irina A Vinogradova, Lyudmila B Uzenbaeva, Tatiana N Ilyina, Victoria D Yunash, Artem V Morozov, Vladimir N Anisimov
The present study was aimed to identify how age-related changes in some physiological and biochemical systems are related to changes in the life span of rats with long-term pineal gland hypo- and hyperfunction induced by constant light and constant darkness, respectively. At the age of 25 days the rats were randomly divided into 3 groups: standard light/dark regimen (LD), constant light (LL) and constant darkness (DD). Age-related antioxidant system (AOS) changes in liver tissues, alteration of immunoreactivity in blood smears were investigated, pubescence and lifespan of the animals were determined...
September 21, 2016: Current Aging Science
Numan Cim, Mertihan Kurdoglu, Serhat Ege, Ibrahim Yoruk, Gorkem Yaman, Recep Yildizhan
AIM: The aim of this study was to evaluate the roles of proangiogenic factors including serum vitamin D and vascular endothelial growth factor (VEGF) and anti-angiogenic factors including soluble endoglin (sEng) and soluble fms-like tyrosine kinase 1 (sFlt1) in the diagnosis and severity of late-onset preeclampsia. MATERIALS AND METHODS: The study was conducted at Yuzuncu Yil University Research and Education Hospital Department of Gynecology and Obstetrics. The study included a patient group of 40 women with late-onset preeclampsia who were pregnant at ≥32 weeks of gestation according to the last menstrual period (LMP) or ultrasonographic fetal biometric measurement and a control group of 40 healthy pregnant women who presented to our clinic for routine pregnancy examination and were at the same age and gestational period with those in the patient group...
September 23, 2016: Journal of Maternal-fetal & Neonatal Medicine
S Cheng, W Y So, D Zhang, Q Cheng, B J Boucher, P S Leung
OBJECTIVES: The present study was designed to investigate the effects of calcitriol (the active hormonal metabolite of vitamin D) on hepatic metabolic abnormalities in type 2 diabetes. METHODS: Type 2 diabetic db/db mice were used to investigate the effects of calcitriol on hepatic and systemic metabolic disorders. HepG2 cells cultured in insulin-resistant conditions were used to examine the potential mechanisms for calcitriol-induced changes in hepatic lipid and glucose metabolism...
September 20, 2016: Current Molecular Medicine
Steve Malangone, Christopher J Campen
A 60-year-old man initially presented with pain in the right upper quadrant in October 2010. A computed tomography (CT) scan of the abdomen pelvis completed at that time showed a mass at the junction of the body and tail of the pancreas and multiple large liver lesions. A CT-guided liver biopsy revealed low-grade neuroendocrine carcinoma. The patient was initially started on systemic treatment with sunitinib (Sutent) and octreotide. He developed intolerable side effects, including nausea and migraine. Therapy was discontinued in October 2011, when a CT scan revealed evidence of disease progression...
November 2015: Journal of the Advanced Practitioner in Oncology
Yuval A Patel, Ricardo Henao, Cynthia A Moylan, Cynthia D Guy, Dawn L Piercy, Anna Mae Diehl, Manal F Abdelmalek
OBJECTIVES: The pathogenesis of nonalcoholic fatty liver disease (NAFLD) is complex. Vitamin D (VitD) has been implicated in NAFLD pathogenesis because it has roles in immune modulation, cell differentiation and proliferation, and regulation of inflammation. We evaluated the association of VitD levels, hepatic gene expression for VitD metabolizing genes, and NAFLD histological severity. METHODS: Two adult cohorts, controls (n=39) and NAFLD (n=244), who underwent liver biopsy were compared...
September 20, 2016: American Journal of Gastroenterology
Katsuhiro Hiranuma, Atsushi Yamada, Tamaki Kurosawa, Ryo Aizawa, Dai Suzuki, Yoshiro Saito, Ryo Nagahama, Mikiko Ikehata, Masayuki Tsukasaki, Naoko Morimura, Daichi Chikazu, Koutaro Maki, Tatsuo Shirota, Masamichi Takami, Matsuo Yamamoto, Takehiko Iijima, Ryutaro Kamijo
The extracellular matrix protein nephronectin (Npnt), also called POEM, is considered to play critical roles as an adhesion molecule in development and functions of various tissues, such as the kidneys, liver, and bone. In the present study, we examined the molecular mechanism of Npnt gene expression and found that vitamin D3 (1α,25-dihydroxyvitamin D3,VD 3) strongly enhanced Npnt mRNA expression in MC3T3-E1 cells from a mouse osteoblastic cell line. The VD 3-induced increase in Npnt expression is both time- and dose-dependent and is mediated by the vitamin D receptor (VDR)...
September 2016: FEBS Open Bio
Hamid Lorvand Amiri, Shahram Agah, Seyedeh Neda Mousavi, Agha Fatemeh Hosseini, Farzad Shidfar
OBJECTIVE: Evidence indicates that NAFLD patients are vitamin D deficient. Vitamin D has new roles in lipid and glucose metabolism. The aim of this study was to examine the effects of calcitriol supplementation on the NAFLD progression based on liver lipid accumulation, serum lipid profile and insulin resistance. METHODS: We randomly assigned 73 patients with NAFLD-confirmed by ultra-sonography to 12 weeks of treatment with hypocaloric diet (reduction of 500 kcal per day) plus 25 µg of calcitriol supplement or a hypocaloric diet plus placebo...
September 2016: Archives of Iranian Medicine
Hamid Zolfaghari, Gholamreza Askari, Fereydoun Siassi, Awat Feizi, Gity Sotoudeh
BACKGROUND: Nonalcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease in the world. Although some studies have been conducted about dietary intakes of these patients, but the results are inconsistent. The aim of this study was to survey all macronutrients and micronutrients included in dietary intake of these patients for better understanding the factors influencing this disease. METHODS: The present study is a case-control conducted in Isfahan city, Iran...
2016: International Journal of Preventive Medicine
Ali Güneş, Fesih Aktar, İlhan Tan, Murat Söker, Ünal Uluca, Hasan Balık, Nuriye Mete
The aim of this study was to investigate urine early kidney injury molecules, including human kidney injury molecule-1 (KIM-1), liver-type fatty-acid binding protein (L-FABP), N-acetyl-b-D-glucosaminidase A (NAG), and neutrophil gelatinase-associated lipocalin (NGAL) in children with vitamin B12 (cobalamin) deficiency (CD). Twelve children with vitamin B12 deficiency and 20 healthy matched controls were included. Hematologic parameters, serum urea, creatinine (Cr), electrolytes, B12 and folate levels were recorded...
October 1, 2016: Archivos Argentinos de Pediatría
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