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Vitamin D and hepatitis C

Daniel Mønsted Shabanzadeh, Torben Jørgensen, Allan Linneberg, Lars Tue Sørensen, Tea Skaaby
Gallstone disease is highly prevalent in the general population and is a major gastrointestinal cause of hospital admissions. The objectives were to determine whether circulating levels of 25-hydroxyvitamin D were associated to ultrasound proven gallstones or cholecystectomy in a general population sample. Determinants of vitamin D status were also explored. A random sample of 4130 people from the population of Copenhagen with ages 41-71 years were invited (N = 4130) and 2650 participants were included...
October 1, 2016: Endocrine
Huijuan Zhu, Xingxiang Liu, Yi Ding, Hui Zhou, Yiying Wang, Zhiwei Zhou, Xinxin Li, Zengli Zhang, Chen Dong
INTRODUCTION: Vitamin D is significantly associated with virus replication in chronic hepatitis B virus (HBV) infection. However, the relationship between low serum vitamin D levels and HBV "a" determinant mutations remains unknown. METHODOLOGY: A total of 133 chronically HBV-infected, treatment-naive patients were randomly selected in the present study. Serum vitamin D levels were measured by using liquid chromatography-mass spectrometry. The HBV "a" determinant was amplified, sequenced, and analyzed by nested polymerase chain reaction (PCR)...
September 30, 2016: Journal of Infection in Developing Countries
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
Feifei Sun, Yangchun Cao, Chuanjiang Cai, Shengxiang Li, Chao Yu, Junhu Yao
This study investigated the effects of rumen-protected methionine (RPM) and rumen-protected choline (RPC) on energy balance, postpartum lactation performance, antioxidant capacity and immune response in transition dairy cows. Forty-eight multiparous transition cows were matched and divided into four groups: control, 15 g/d RPC, 15 g/d RPM or 15 g/d RPC + 15 g/d RPM. Diet samples were collected daily before feeding, and blood samples were collected weekly from the jugular vein before morning feeding from 21 days prepartum to 21 days postpartum...
2016: PloS One
Tomomi Okubo, Masanori Atsukawa, Akihito Tsubota, Noritomo Shimada, Hiroshi Abe, Kai Yoshizawa, Taeang Arai, Ai Nakagawa, Norio Itokawa, Chisa Kondo, Yoshio Aizawa, Katsuhiko Iwakiri
AIM: Although interferon-free therapy with direct acting antivirals has developed as a standard of care for chronic hepatitis C, the existence of resistance-associated variants (RAVs) has a negative impact on treatment results. Recently several studies indicated a relationship between chronic hepatitis C and serum vitamin D levels. However, the relationship between RAVs at the HCV NS5A region and serum vitamin D level has not yet been examined. METHODS: Among patients with genotype 1 chronic hepatitis C who were enrolled in a multicenter cooperative study, our subjects comprised 247 patients in whom it was possible to measure RAVs at the NS5A region...
August 2, 2016: Hepatology Research: the Official Journal of the Japan Society of Hepatology
H Khaldoun Oularbi, C Richeval, N Lebaili, N Zerrouki-Daoudi, M Baha, N Djennas, D Allorge
In the present study, we aimed to assess the potential protective effect of ascorbic acid (AA) against emamectin benzoate (EMB)-induced hepatotoxicity. For this purpose, biochemical, histopathological and analytical investigations were performed. Male Wistar rats were distributed into three groups, that is, a control group, an EMB group given 10 mg EMB/kg body weight (BW) by gavage and an EMB + AA group given 10 mg EMB/kg BW and vitamin C intraperitoneally (200 mg/kg). The duration of the treatment was 28 days and the duration of the study was 42 days...
July 26, 2016: Human & Experimental Toxicology
Masayuki Nagahashi, Kizuki Yuza, Yuki Hirose, Masato Nakajima, Rajesh Ramanathan, Nitai C Hait, Phillip B Hylemon, Huiping Zhou, Kazuaki Takabe, Toshifumi Wakai
Based on research carried out over the last decade, it has become increasingly evident that bile acids act not only as detergents, but also as important signaling molecules that exert various biological effects via activation of specific nuclear receptors and cell signaling pathways. Bile acids also regulate the expression of numerous genes encoding enzymes and proteins involved in the synthesis and metabolism of bile acids, glucose, fatty acids, and lipoproteins, as well as energy metabolism. Receptors activated by bile acids include, farnesoid X receptor α, pregnane X receptor, vitamin D receptor, and G protein-coupled receptors, TGR5, muscarinic receptor 2, and sphingosine-1-phosphate receptor (S1PR)2...
September 2016: Journal of Lipid Research
Christos Konstantakis, Paraskevi Tselekouni, Maria Kalafateli, Christos Triantos
There is ongoing evidence that vitamin D is related to the pathophysiology of cirrhosis. Although the incidence of vitamin D deficiency in chronic liver diseases and cirrhosis is strongly documented, its pathogenic association with advanced liver fibrosis remains controversial. There is evidence of a significant relation of 25(OH)D levels with the degree of liver dysfunction, considering that an inverse correlation of 25(OH)D levels with both Child-Pugh score and Model for End-Stage Liver Disease has been reported...
July 2016: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
Cong Wang, Qin Wu, Xiu-tian Wei, Zhen-zhen Li, Xue-zhong Lei
OBJECTIVE: To assess the influence of vitamin D receptor (VDR) gene Bsm I, Fok I, Taq I and Apa I polymorphisms on the response to antiviral therapy in patients with chronic hepatitis C (CHC). METHODS: There were total 124 patients with CHC treated with pegylated interferon plus ribavirin. VDR gene Bsm I, Fok I Taq I and Apa I polymorphisms were analyzed in 71 patients with sustained virological response (SVR) and 53 patients without SVR (non-SVR) by polymerase chain reaction-MassARRAY (PCR-MassARRAY)...
March 2016: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
K W Ter Horst, R I Versteeg, P W Gilijamse, M T Ackermans, A C Heijboer, J A Romijn, S E la Fleur, R Trinko, R J DiLeone, M J Serlie
AIM: Vitamin D deficiency has been proposed to be involved in obesity-induced metabolic disease. However, data on the relationship between 25-hydroxycholecalciferol (25(OH)D) and insulin resistance have been inconsistent, and few studies have investigated the active vitamin D metabolite, 1,25-dihydroxycholecalciferol (1,25(OH)2D). This study aimed to determine the relationship between circulating levels of both 25(OH)D and 1,25(OH)2D and direct measures of glucose metabolism and insulin action in obese women...
June 1, 2016: Diabetes & Metabolism
M Kizilgul, O Ozcelik, T Delibasi
Alcohol consumption is harmful to many organs and tissues, including bones, and it leads to osteoporosis. Hepatic osteodystrophy is abnormal bone metabolism that has been defined in patients with chronic liver disease (CLD), including osteopenia, osteoporosis, and osteomalacia. Decreased bone density in patients with CLD results from decreased bone formation or increased bone resorption. The prevalence of osteopenia in alcoholic liver disease (ALD) patients is between 34 % and 48 %, and the prevalence of osteoporosis is between 11 % and 36 %...
July 2016: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
Milica Bozic, Carla Guzmán, Marta Benet, Sonia Sánchez-Campos, Carmelo García-Monzón, Eloi Gari, Sonia Gatius, José Manuel Valdivielso, Ramiro Jover
BACKGROUND & AIMS: The pathogenesis and progression of non-alcoholic fatty liver disease (NAFLD) is still incompletely understood. Several nuclear receptors play a role in liver lipid metabolism and can promote hepatosteatosis, but the possible role of vitamin D receptor (VDR) in NAFLD has not been investigated. METHODS: The expression of liver VDR was investigated in apolipoprotein E knockout (apoE(-/-)) mice on a high fat diet, in wild-type mice on methionine and choline deficient diet and in NAFLD patients with hepatosteatosis and non-alcoholic steatohepatitis...
October 2016: Journal of Hepatology
Beatriz Mateos-Muñoz, María J Devesa-Medina, María P Matía-Martín, María J Torrejón, Avelina Suárez, Angélica Larrad-Sáinz, Enrique Rey-Díaz-Rubio, María C Cárdenas, Luis Ortega-Medina, José M Ladero
UNLABELLED:  Background. Nutritional deficiencies may aggravate the course of chronic hepatitis C (CHC). Our aim has been to perform a comprehensive analysis of body composition and nutritional deficiencies in CHC patients in non-cirrhotic and compensated cirrhotic stages to correlate the detected deficiencies with the fibrosis stage. MATERIAL AND METHODS: Body multifrequency bioimpedance analysis (BIA) and a wide and simultaneous analytical profile were prospectively performed in 74 CHC patients (36 male) with known METAVIR fibrosis stage established with liver biopsy or transient elastography...
July 2016: Annals of Hepatology
Kent Wehmeier, Luisa M Onstead-Haas, Norman C W Wong, Arshag D Mooradian, Michael J Haas
The vitamin D metabolite 24,25-dihydroxyvitamin D3 (24, 25[OH]2D3) was shown to induce nongenomic signaling pathways in resting zone chondrocytes and other cells involved in bone remodeling. Recently, our laboratory demonstrated that 24,25-[OH]2D3 but not 25-hydroxyvitamin D3, suppresses apolipoprotein A-I (apo A-I) gene expression and high-density lipoprotein (HDL) secretion in hepatocytes. Since 24,25-[OH]2D3 has low affinity for the vitamin D receptor (VDR) and little is known with regard to how 24,25-[OH]2D3 modulates nongenomic signaling in hepatocytes, we investigated the capacity of 24,25-[OH]2D3 to activate various signaling pathways relevant to apo A-I synthesis in HepG2 cells...
August 2016: Journal of Molecular Endocrinology
Sami A Gabr, Ahmad H Alghadir, Ahmed A Allam, Jamaan Ajarem, Ghada Al-Basher, Mostafa A Abdel-Maksoud, Ayman A Ghfar, Alaa Aboud
BACKGROUND: Vitamin D levels play a pivotal role in most biological processes and differ according to age. A deficiency of vitamin D in chronic hepatitis C (CHC) patients has been shown to be linked with the severity of liver fibrosis, but little is known about the mechanism of this association. OBJECTIVE: In this study, we evaluate the potential interrelation between vitamin D levels, oxidative stress, and apoptosis, based on liver fibrosis in geriatric patients infected with hepatitis C virus (HCV) genotype 4...
2016: Clinical Interventions in Aging
Syed Atif Mohiuddin, Mohamed Marie, Mohammad Ashraf, Magdi Hussein, Najlaa Almalki
Vitamin D deficiency is very prevalent among the patients with end-stage renal disease. The etiology of this is multifactorial, including nutritional deficiency, insufficient exposure to sunlight, race, obesity and not the least, impaired Vitamin D synthesis and metabolism in chronic kidney disease patients. We hypothesized that lower Vitamin D level will be associated with higher inflammatory burden and low immunological response to hepatitis B vaccination in hemodialysis (HD) population. The study was carried out in March 2013 among 100 HD patients who were identified to be eligible for the study...
May 2016: Saudi Journal of Kidney Diseases and Transplantation
Payam Peymani, Saied Ghavami, Behzad Yeganeh, Reza Tabrizi, Siamak Sabour, Bita Geramizadeh, Mohammad Reza Fattahi, Seyed Mehdi Ahmadi, Kamran B Lankarani
BACKGROUND: Hepatitis C virus infection frequently leads to chronic hepatitis C which may progress to cirrhosis and can be ended to hepatocellular carcinoma. This study aimed to investigate the effect of Anthropometric Parameters, Vit D3, Thyroid Function, Ferritin and Biochemistry Parameters in patients chronically infected with HCV with non-response criteria which was treated by chloroquine. METHODS: This study was the continuation of our previous investigation with a triple-blind method in a randomized controlled pilot study...
2016: Acta Bio-medica: Atenei Parmensis
Sheetal Karne, Candace B Mainor, Maria R Baer
Peginterferon alfa-2a (PEG-IFN alfa-2a) is commonly used to treat hepatitis C virus infection and is also being used increasingly to treat myeloproliferative neoplasms including polycythemia vera. Sarcoidosis associated with interferon therapy for treatment of hepatitis C is well described, with hypercalcemia occurring as a rare manifestation. We describe a 25-year-old man with polycythemia vera who became resistant to hydroxyurea after 6 years of treatment, requiring therapeutic phlebotomy procedures with increasing frequency for increased hemoglobin and hematocrit levels...
May 6, 2016: Pharmacotherapy
Jessica Cusato, Lucio Boglione, Amedeo De Nicolò, Chiara Simona Cardellino, Chiara Carcieri, Giuseppe Cariti, Giovanni Di Perri, Antonio D'Avolio
Mixed cryoglobulinemia (MC) is the most frequent extrahepatic hepatitis C virus (HCV) complication. Vitamin D is a modulator of several biological processes, including immune and skeletal systems and MC presence and systemic vasculitis were associated independently with low levels of vitamin D. Considering the impact of vitamin D, we aimed to evaluate the role of some single nucleotide polymorphisms (SNPs) of vitamin D pathway genes in the prediction of MC in HCV patients treated with pegylated interferon and ribavirin...
June 2016: Pharmacogenetics and Genomics
Ahmed Abdelsalam, Laila Rashed, Tarek Salman, Lamiaa Hammad, Dina Sabry
BACKGROUND/AIM: Egypt has the highest prevalence rate of Hepatitis C virus (HCV) infection around the globe, where, chronic hepatits C (CHC) is considered a major health problem. The standard treatment of CHC is combination therapy of pegylated interferon and ribavirin. Successful treatment and sustained virological response (SVR) are only achieved in 30% of patients. Major adverse effects and high cost of the treatment makes predicting the treatment output is an important approach. The aim of this study to find an association between Vitamin D concentration and vitamin D receptor (VDR) polymorphisms with achieving SVR...
April 29, 2016: Journal of Digestive Diseases
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