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https://www.readbyqxmd.com/read/28329820/hepatocellular-toxicity-of-imidazole-and-triazole-antimycotic-agents
#1
Patrizia Haegler, Lorenz Joerin, Stephan Krähenbühl, Jamal Bouitbir
Hepatotoxicity has been described for all antimycotic azoles currently marketed. A possible mechanism involving mitochondrial dysfunction has been postulated for ketoconazole, but not for the other azoles. The aim of the current investigations was to study the toxicity of different azoles in human cell models and to find out mechanisms of their toxicity. In HepG2 cells, posaconazole and ketoconazole were cytotoxic starting at 20 and 50 µM and decreased the cellular ATP content starting at 5 and 10 µM, respectively...
January 27, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28329261/effects-of-noise-on-vascular-function-oxidative-stress-and-inflammation-mechanistic-insight-from-studies-in-mice
#2
Thomas Münzel, Andreas Daiber, Sebastian Steven, Lan P Tran, Elisabeth Ullmann, Sabine Kossmann, Frank P Schmidt, Matthias Oelze, Ning Xia, Huige Li, Antonio Pinto, Philipp Wild, Kai Pies, Erwin R Schmidt, Steffen Rapp, Swenja Kröller-Schön
Aims: Epidemiological studies indicate that traffic noise increases the incidence of coronary artery disease, hypertension and stroke. The underlying mechanisms remain largely unknown. Field studies with nighttime noise exposure demonstrate that aircraft noise leads to vascular dysfunction, which is markedly improved by vitamin C, suggesting a key role of oxidative stress in causing this phenomenon. Methods and results: We developed a novel animal model to study the vascular consequences of aircraft noise exposure...
February 17, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28327908/predicted-vitamin-d-status-and-colon-cancer-recurrence-and-mortality-in-calgb-89803-alliance
#3
M A Fuchs, C Yuan, K Sato, D Niedzwiecki, X Ye, L B Saltz, R J Mayer, R B Mowat, R Whittom, A Hantel, A Benson, D Atienza, M Messino, H Kindler, A Venook, F Innocenti, R S Warren, M M Bertagnolli, S Ogino, E L Giovannucci, E Horvath, J A Meyerhardt, K Ng
Background: HASH(0x42a1b90) Observational studies suggest that higher levels of 25-hydroxyvitamin D 3 (25(OH)D) are associated with a reduced risk of colorectal cancer and improved survival of colorectal cancer patients. However, the influence of vitamin D status on cancer recurrence and survival of patients with stage III colon cancer is unknown. Patients and methods: HASH(0x4b35d78) We prospectively examined the influence of post-diagnosis predicted plasma 25(OH)D on outcome among 1,016 patients with stage III colon cancer who were enrolled in a National Cancer Institute-sponsored adjuvant therapy trial (CALGB 89803)...
March 15, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28327822/impact-of-roux-en-y-gastric-bypass-surgery-rygb-on-metabolic-syndrome-components-and-on-the-use-of-associated-drugs-in-obese-patients
#4
Vilma Maria Junges, Jarbas Marinho Cavalheiro, Eliana Franzoi Fam, Vera Elizabeth Closs, João Feliz Moraes, Maria Gabriela Gottlieb
BACKGROUND: The prevalence of obesity and metabolic syndrome is increasing worldwide and both behavior modification and drug therapy have low adherence. Gastric bypass has shown effective results in both reducing weight and improving comorbidities. OBJECTIVE: To evaluate the impact of Roux-en-Y Gastric Bypass Surgery (RYGB) on both metabolic syndrome components and the use of associated drugs in obese patients. METHODS: Historical cohort of patients subjected to Roux-en-Y Gastric Bypass Surgery (RYGB) between January 2007 and March 2014 in a private clinic...
March 16, 2017: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/28327813/relative-validity-of-a-food-frequency-questionnaire-in-patients-coinfected-with-hepatitis-c-virus-and-human-immunodeficiency-virus
#5
Anelise Fernanda Zanolla, Caroline Buss, Dimas Alexandre Kliemann, Giselle Souza Pinto, Vivian Silveira Vasques, Cristiane Valle Tovo
INTRODUCTION: Validation of food frequency questionnaires (FFQs) is recommended for accurate measurement of habitual food consumption. We assessed the relative validity of a FFQ in patients coinfected with hepatitis C virus and human immunodeficiency virus. METHODS: Each patient responded to a FFQ and three 24-hour food recalls. Pearson's correlation and weighted Kappa index analyses were performed to identify the FFQ relative validity and concordance. RESULTS: De-attenuated correlation coefficients ranged from 0...
January 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/28327618/the-transcriptional-repressor-hic1-regulates-intestinal-immune-homeostasis
#6
K Burrows, F Antignano, M Bramhall, A Chenery, S Scheer, V Korinek, T M Underhill, C Zaph
The intestine is a unique immune environment that must respond to infectious organisms but remain tolerant to commensal microbes and food antigens. However, the molecular mechanisms that regulate immune cell function in the intestine remain unclear. Here we identify the POK/ZBTB family transcription factor hypermethylated in cancer 1 (HIC1, ZBTB29) as a central component of immunity and inflammation in the intestine. HIC1 is specifically expressed in immune cells in the intestinal lamina propria (LP) in the steady state and mice with a T-cell-specific deletion of HIC1 have reduced numbers of T cells in the LP...
March 22, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28327535/physicochemical-properties-and-microbial-quality-of-tremella-aurantialba-packed-in-antimicrobial-composite-films
#7
Jian Fan, Zhuangzhuang Chu, Lin Li, Tianrui Zhao, Min Yin, Yuyue Qin
The effects of poly(lactic acid) (PLA)-based film with inorganic antimicrobial nano-TiO₂ and nano-Ag on the physicochemical and microbial quality of Tremella aurantialba stored at 4 ± 1 °C for 16 days was investigated. Rosemary essential oil (REO, 9 wt %) was added into PLA film as plasticizer. Low-density polyethylene (LDPE) and PLA film was used as the controls. The experiment measured physicochemical properties and microbial levels, such as weight loss, firmness, vitamin C, color, microbiological quality, and sensory quality...
March 22, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28327211/reduced-fetal-vitamin-d-status-by-maternal-undernutrition-during-discrete-gestational-windows-in-sheep
#8
J K Cleal, M R Hargreaves, K R Poore, J C Y Tang, W D Fraser, M A Hanson, L R Green
Placental transport of vitamin D and other nutrients (e.g. amino acids, fats and glucose) to the fetus is sensitive to maternal and fetal nutritional cues. We studied the effect of maternal calorific restriction on fetal vitamin D status and the placental expression of genes for nutrient transport [aromatic T-type amino acid transporter-1 (TAT-1); triglyceride hydrolase/lipoprotein uptake facilitator lipoprotein lipase (LPL)] and vitamin D homeostasis [CYP27B1; vitamin D receptor (VDR)], and their association with markers of fetal cardiovascular function and skeletal muscle growth...
March 22, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28326899/prevalence-and-predictors-of-complementary-and-alternative-medicine-non-pharmacological-interventions-use-for-menopausal-symptoms-within-the-uk-collaborative-trial-of-ovarian-cancer-screening
#9
A Gentry-Maharaj, C Karpinskyj, C Glazer, M Burnell, K Bailey, S Apostolidou, A Ryan, A Lanceley, L Fraser, I Jacobs, M S Hunter, U Menon
OBJECTIVES: The negative publicity about menopausal hormone therapy (MHT) has led to increased use of complementary and alternative medicines (CAM) and non-pharmacological interventions (NPI) for menopausal symptom relief. We report on the prevalence and predictors of CAM/NPI among UK postmenopausal women. METHOD: Postmenopausal women aged 50-74 years were invited to participate in the UK Collaborative Trial of Ovarian Cancer Screening (UKCTOCS). A total of 202 638 women were recruited and completed a baseline questionnaire...
March 22, 2017: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/28326620/effect-of-selenium-and-vitamin-e-addition-to-the-extender-on-liquid-stored-capercaillie-tetrao-urogallus-semen-quality
#10
A M Kowalczyk, J Klećkowska-Nawrot, E T Łukaszewicz
Captive breeding has become an important tool in species conservations programmes, maintaining genetic diversity and restoring wild, endangered populations. In order to improve the reproductive efficiency of captive kept capercaillie, the purpose of the study was to determine the effect of selenium and vitamin E addition to semen extender on sperm characteristic during short-term storage. Ejaculates collected individually from four capercaillie were divided into two parts, diluted threefold with basic EK extender and EK enriched with 1 mg/ml of organic selenium and 8 mg/ml of vitamin E (EK+Se+E) and stored 24 hr at temp...
March 21, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28325646/psychometrics-of-the-self-efficacy-consumption-of-fruit-and-vegetables-scale-in-african-american-women
#11
Lisaann S Gittner, Kevin B Gittner
PURPOSE: Assess the psychometric properties of the Self-Efficacy Consumption of Fruit and Vegetable Scale (F/V scale) in African American women. SETTING: Midwestern Health Maintenance Organization. SUBJECTS: 221 African American women age 40-65 with BMI≥30 MEASURES: F/V scale was compared to eating efficacy/availability subscale reported on the WEL and mean micronutrient intake (vitamins A, C, K, folate, potassium, and beta-carotene reported on 3-day food records...
March 8, 2017: Eating Behaviors
https://www.readbyqxmd.com/read/28325259/vitamin-d-analogues-potential-use-in-cancer-treatment
#12
REVIEW
Michael J Duffy, Alyson Murray, Naoise C Synnott, Norma O'Donovan, John Crown
The vitamin D receptor (VDR) is a member of the thyroid-steroid family of nuclear transcription factors. Following binding of the active form of vitamin D, i.e., 1,25(OH)2D3 (also known as calcitriol) and interaction with co-activators and co-repressors, VDR regulates the expression of several different genes. Although relatively little work has been carried out on VDR in human cancers, several epidemiological studies suggest that low circulating levels of vitamin D are associated with both an increased risk of developing specific cancer types and poor outcome in patients with specific diagnosed cancers...
April 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28325140/vitamins-in-heart-failure-friend-or-enemy
#13
George Georgiopoulos, Christina Chrysohoou, Georgia Vogiatzi, Nikolaos Magkas, Ippokratis Bournelis, Sofia Bampali, Damien Gruson, Dimitris Tousoulis
BACKGROUND: The failing heart is characterized by a depleted metabolic energy reserve and the up-regulation of several molecular mechanisms leading to cardiac hypertrophy, inflammation, fibrosis, angiogenesis, and apoptosis. Dietary or non-dietary supplementation of vitamins could potentially benefit energy balance. OBJECTIVE: The objective of the present study was to evaluate all available information on vitamins supplementation in patients with chronic HF for possible beneficial effect on metabolic, inotropic, chronotropic and hemodynamic indices...
March 20, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28323902/no-prognostic-value-added-by-vitamin-d-pathway-snps-to-current-prognostic-system-for-melanoma-survival
#14
Li Luo, Irene Orlow, Peter A Kanetsky, Nancy E Thomas, Shenying Fang, Jeffrey E Lee, Marianne Berwick, Ji-Hyun Lee
The prognostic improvement attributed to genetic markers over current prognostic system has not been well studied for melanoma. The goal of this study is to evaluate the added prognostic value of Vitamin D Pathway (VitD) SNPs to currently known clinical and demographic factors such as age, sex, Breslow thickness, mitosis and ulceration (CDF). We utilized two large independent well-characterized melanoma studies: the Genes, Environment, and Melanoma (GEM) and MD Anderson studies, and performed variable selection of VitD pathway SNPs and CDF using Random Survival Forest (RSF) method in addition to Cox proportional hazards models...
2017: PloS One
https://www.readbyqxmd.com/read/28323302/vegetable-and-fruit-juice-enhances-antioxidant-capacity-and-regulates-antioxidant-gene-expression-in-rat-liver-brain-and-colon
#15
Linhong Yuan, Jinmeng Liu, Jie Zhen, Yao Xu, Shuying Chen, Nicholas Van Halm-Lutterodt, Rong Xiao
To explore the effect of fruit and vegetable (FV) juice on biomarkers of oxidative damage and antioxidant gene expression in rats, 36 adult male Wistar rats were randomly divided into control, low FV juice dosage or high FV juice dosage treatment groups. The rats were given freshly extracted FV juice or the same volume of saline water daily for five weeks. After intervention, serum and tissues specimens were collected for biomarker and gene expression measurement. FV juice intervention increased total antioxidant capacity, glutathione, vitamin C, β-carotene, total polyphenols, flavonoids levels andglutathione peroxidaseenzyme activity in rat serum or tissues (p < 0...
March 20, 2017: Genetics and Molecular Biology
https://www.readbyqxmd.com/read/28322549/vitamin-c-modulates-the-immunotoxic-effect-of-17-alpha-methyltestosterone-in-nile-tilapia
#16
Haitham G Abo-Al-Ela, Abeer F El-Nahas, Shawky Mahmoud, Essam M Ibrahim
The synthetic androgen, 17 alpha-methyltestosterone (MT), is profusely used and practically needed in the production of all-male Nile tilapia fry; however, such androgenic hormones badly disrupt the immune system. This study aimed to alleviate or counteract the immunotoxic effect of MT using vitamin C (ascorbic acid, vit C). Our results show that the highest phagocytic activity (PA), phagocytic index (PI) and lysozyme activity were detected in the vit C group and the MT plus vit C group. Furthermore, PA and PI were significantly suppressed, but lysozyme activity was stronger in the MT group than the control...
March 21, 2017: Biochemistry
https://www.readbyqxmd.com/read/28321953/synthesis-of-poly-vitamin-c-through-admet
#17
Serter Luleburgaz, Meir Abuaf, Umit Tunca, Gurkan Hizal, Hakan Durmaz
l-Ascorbic acid, commonly known as vitamin C and one of the most important biological compounds, is converted to a α,ω-diene monomer and subsequently polymerized for the first time by acyclic diene metathesis. Various experimental conditions such as polymerization medium, catalyst type, temperature, and monomer/catalyst ratio are studied. The moderate molecular weight polymers are achieved when the polymerizations are conducted under bulk conditions employing the Grubbs first generation (G1) or Hoveyda-Grubbs second generation catalyst (HG-2)...
March 21, 2017: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/28321633/dietary-intake-of-minerals-vitamins-and-trace-elements-among-geriatric-population-in-india
#18
Aakriti Gupta, Preetika Khenduja, Ravindra Mohan Pandey, Hem Chandra Sati, Nighat Yaseen Sofi, Umesh Kapil
The geriatric population is at a high risk of developing deficiencies of essential micronutrients such as minerals, vitamins, and trace elements and their related deficiency signs and symptoms. Scarce data is available on the dietary intake of essential micronutrients among geriatric subjects in India. Hence, to fill the gap in the existing knowledge, a community-based cross-sectional study was conducted during 2015-2016 in District Nainital, Uttarakhand State, India. A total of 255 geriatric subjects were enrolled from 30 clusters (villages) identified by using population proportionate to size sampling methodology...
March 20, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28321531/bone-quality-in-beta-thalassemia-intermedia-relationships-with-bone-quantity-and-endocrine-and-hematologic-variables
#19
Marina Baldini, A Marcon, F M Ulivieri, S Seghezzi, R Cassin, C Messina, M D Cappellini, G Graziadei
We report the first evaluation of bone quality in 70 thalassemia intermedia (TI) patients (37 males, 33 females, age 41 ± 12 years). Thirty-three patients (47%) had been transfused, 34 (49%) had been splenectomized, 39 (56%) were on iron chelation therapy, and 11 (16%) were on hydroxyurea. Mean hemoglobin was 9.2 ± 1.5 g/dl, median ferritin 537 ng/dl (range 14-4893), and mean liver iron concentration 7.6 ± 6.4 mg Fe/g dw. Fifteen patients (21%) had endocrinopathies, and 29 (41%) had vitamin D deficiency...
March 20, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28321328/effect-of-season-and-sunlight-on-viral-kinetics-during-hepatitis-c-virus-therapy
#20
Noemi Hernández-Alvarez, Juan Manuel Pascasio Acevedo, Enrique Quintero, Inmaculada Fernández Vázquez, María García-Eliz, Juan de la Revilla Negro, Javier Crespo García, Manuel Hernández-Guerra
BACKGROUND AND AIMS: Rapid viral response (RVR) during antiviral treatment for hepatitis C virus (HCV) predicts sustained viral response (SVR). Recently, vitamin D levels have been associated with SVR. As sunlight is the most important source of vitamin D and shows seasonal variation, we evaluated the effect of season on viral kinetics during peginterferon/ribavirin-based therapy for HCV. METHODS: Consecutive HCV patients treated with peginterferon/ribavirin and boceprevir/ telaprevir (June 2011-July 2014) were included...
2017: BMJ Open Gastroenterology
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