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Vitamin A

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https://www.readbyqxmd.com/read/29458161/multiple-mycotoxin-analysis-in-nut-products-occurrence-and-risk-characterization
#1
Sara C Cunha, S Sá, José O Fernandes
Nuts consumption plays an important role in Mediterranean diet, being a good source of proteins, vitamins, minerals and unsaturated fatty acids. However, nuts can be also a source of harmful mycotoxins with negative impact on human health. In this work, the occurrence of 16 mycotoxins belonging to different chemical classes, was assessed in several nut products. The analytical method used was based on modified QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) procedure followed by liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis...
February 16, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29458017/synergistic-and-additive-effects-of-atra-in-combination-with-different-anti-tumor-compounds
#2
REVIEW
Eduarda Schultze, Tiago Collares, Caroline Lucas, Fabiana K Seixas
All-trans retinoic acid (ATRA), a derivative of vitamin A, has been shown to potentiate cancer chemotherapy due to its ability to induce signals for cell differentiation or death, and inhibit cell proliferation. The combination of ATRA with taxoids, kinase inhibitors, natural compounds, retinoids, ER or HER2 inhibitors, chemotherapeutic drugs, proteasome inhibitors and nanoformulations of tretinoin have demonstrated additive or synergistic effects in anti-cancer activities. The mechanisms by which the compounds exert their synergistic effects depend on the tumor and the cell type...
February 16, 2018: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29458003/fgf-23-pth-and-vitamin-d-status-in-end-stage-renal-disease-patients-affected-by-vdr-foki-and-bsmi-variants
#3
Mouna Bouksila, Wajih Kaabachi, Mehdi Mrad, Wided Smaoui, Elhem Cheour El Kateb, Mohammed Karim Zouaghi, Kamel Hamzaoui, Afef Bahlous
OBJECTIVES: The aim of this study was to evaluate the association between two VDR SNPs FokI and BsmI and mineral status in ESRD patients. DESIGN AND METHODS: Our case-control study included 100 patients with chronic renal failure in ESRD and 149 healthy subjects. We measured the serum Vitamin D levels and the serum intact PTH level by Electrochemiluminescence Technology (cobas E411 analyzer). We evaluated the serum FGF23 levels by indirect ELISA method. The genotyping of two VDR gene variants FokI and BsmI was carried out by PCR-RFLP technique...
February 16, 2018: Clinical Biochemistry
https://www.readbyqxmd.com/read/29457967/dna-damage-and-genomic-instability-among-workers-formerly-and-currently-exposed-to-asbestos
#4
Mirta Milić, Monica Neri, Marcello Ceppi, Marco Bruzzone, Armelle Munnia, Donatella Ugolini, Alfonso Cristaudo, Alessandra Bonotti, Marco E Peluso, Stefano Bonassi
Objectives Despite an asbestos ban in the European Union, exposure to asbestos still represents an occupational risk. Biomarkers of DNA damage and genomic instability in groups exposed to asbestos may contribute to the identification of subgroups/subjects at higher risk. Methods A cross-sectional study was conducted on 468 male individuals (80 working in occupational settings with potential exposure to asbestos fibers, 202 retired workers with past exposure, and 186 non-exposed controls) to compare genomic instability, cell proliferation and differentiation level using the non-invasive micronucleus buccal cytome assay...
February 19, 2018: Scandinavian Journal of Work, Environment & Health
https://www.readbyqxmd.com/read/29457932/oral-health-related-outcomes-in-edentulous-patients-treated-with-mandibular-implant-retained-dentures-versus-complete-dentures-systematic-review-with-meta-analyses
#5
Philip Kroll, Lisa Hou, Hani Radaideh, Nazanin Sharifi, Phuu P Han, Roseann Mulligan, Reyes Enciso
The objective of this systematic review was to determine the effect on oral health-related outcomes from mandibular implant-retained dentures opposing maxillary complete dentures in edentulous middle-age and older adults compared to complete removable dentures in both arches. Randomized controlled trials with an average age of the participants being 65 years old or above were included. The Cochrane Library, MEDLINE and Web of Science were searched. A total of 228 abstracts were reviewed for inclusion criteria with fourteen trials included and analyzed for risk of bias...
February 19, 2018: Journal of Oral Implantology
https://www.readbyqxmd.com/read/29457884/unique-biochemical-and-sequence-features-enable-blub-to-destroy-flavin-and-distinguish-blub-from-the-flavin-monooxygenase-superfamily
#6
Amrita B Hazra, David P Ballou, Michiko E Taga
Vitamin B12 (cobalamin) is an essential micronutrient for humans that is synthesized only by a subset of bacteria and archaea. The aerobic biosynthesis of 5,6-dimethylbenzimidazole, the lower axial ligand of cobalamin is catalyzed by the "flavin destructase" enzyme BluB, which fragments reduced flavin mononucleotide following its reaction with oxygen to yield this ligand. BluB shares sequence and structural similarity with the flavin oxidoreductase superfamily, yet the flavin destruction process has remained elusive...
February 19, 2018: Biochemistry
https://www.readbyqxmd.com/read/29457678/micronutrients-dietary-patterns-associated-with-type-2-diabetes-among-women-of-the-e3n-epic-cohort-study
#7
Francesca Romana Mancini, Courtney Dow, Aurélie Affret, Kalina Rajaobelina, Laureen Dartois, Beverley Balkau, Fabrice Bonnet, Marie-Christine Boutron-Ruault, Guy Fagherazzi
BACKGROUND: Micronutrients play a key role in type 2 diabetes, but methodological difficulties arise from their collinearity and interdependencies with foods. The objective of the present study is to identify micronutrient dietary patterns in the E3N-EPIC cohort and to investigate their association with type 2 diabetes risk. METHODS: Principal component analysis was applied to identify micronutrient patterns among 71 270 women from the E3N-EPIC cohort. Associations between micronutrient patterns and type 2 diabetes risk were quantified by hazards ratios (95% confidence intervals) from Cox proportional hazards regression models, adjusted on potential confounders...
February 19, 2018: Journal of Diabetes
https://www.readbyqxmd.com/read/29457493/the-impact-of-vitamin-d-supplementation-on-attention-deficit-hyperactivity-disorder-in-children
#8
Hatem Hamed Elshorbagy, Naglaa Fathy Barseem, Waleed Elsayed Abdelghani, Hany Abdelaziz Ibrahim Suliman, Ashraf Hamed Al-Shokary, Sameh Elsayed Abdulsamea, Akram Elshafey Elsadek, Yehia Hamed Abdel Maksoud, Dalia Mohamed Abd El-Hassib Nour El Din
BACKGROUND: The role of nutrients and dietary factors in attention-deficit hyperactivity disorder (ADHD) remains unclear. OBJECTIVES: The primary objective was to evaluate the serum vitamin D level in children with a diagnosis of ADHD. The secondary objective was to detect the effect of vitamin D supplementation on cognitive function in those with vitamin D deficiency. METHODS: A total of 50 children with ADHD and 40 healthy controls were included in the study...
February 1, 2018: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/29457224/factors-associated-with-nutritional-status-and-dietary-practices-of-bangladeshi-adolescents-in-early-pregnancy
#9
Malay K Mridha, Susana L Matias, Charles D Arnold, Kathryn G Dewey
Bangladesh has a high prevalence of adolescent pregnancy, but little is known about the nutritional status and dietary practices of Bangladeshi adolescents in early pregnancy or associated factors. We used the baseline data of 1552 pregnant adolescents from a longitudinal, cluster-randomized effectiveness trial conducted in northwest Bangladesh. Forty-four percent of the adolescents were short for their age, 36% had low body mass index, 28% were anemic, 10% had iron deficiency, and 32% had vitamin A deficiency...
February 18, 2018: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/29457022/a-case-report-of-compound-heterozygous-cyp24a1-mutations-leading-to-nephrolithiasis-successfully-treated-with-ketoconazole
#10
Emma Davidson Peiris, Raghav Wusirika
CYP24A1 is an enzyme that inactivates vitamin D. Loss-of-function mutations in this enzyme are rare but have been linked with idiopathic infantile hypercalcemia as well as adult-onset nephrocalcinosis and nephrolithiasis. Genetic testing for this mutation should be considered in the presence of calciuria, elevated serum calcium, elevated 1,25-dihydroxyvitamin D, and suppressed parathyroid hormone. We present a case with these lab findings as well as an elevated 25-hydroxyvitamin D/24,25-dihydroxyvitamin D ratio in whom compound heterozygous CYP24A1 mutations were found...
September 2017: Case Reports in Nephrology and Dialysis
https://www.readbyqxmd.com/read/29456992/national-immunization-campaigns-with-oral-polio-vaccine-reduce-all-cause-mortality-a-natural-experiment-within-seven-randomized-trials
#11
Andreas Andersen, Ane Baerent Fisker, Amabelia Rodrigues, Cesario Martins, Henrik Ravn, Najaaraq Lund, Sofie Biering-Sørensen, Christine Stabell Benn, Peter Aaby
Background: A recent WHO review concluded that live BCG and measles vaccine (MV) may have beneficial non-specific effects (NSEs) reducing mortality from non-targeted diseases. NSEs of oral polio vaccine (OPV) were not examined. If OPV vaccination campaigns reduce the mortality rate, it would suggest beneficial NSEs. Setting: Between 2002 and 2014, Guinea-Bissau had 15 general OPV campaigns and other campaigns with OPV plus vitamin A supplementation (VAS), VAS-only, MV, and H1N1 vaccine...
2018: Frontiers in Public Health
https://www.readbyqxmd.com/read/29456899/facial-weakness-diplopia-and-fever-in-a-31-year-old-an-atypical-case-of-tuberculous-meningitis
#12
Ahmed H Qavi, Tasnim F Imran, Zachariah Hasan, Fariha Ilyas
Tuberculous meningitis (TBM) is an infection of the central nervous system (CNS) meninges that carries high morbidity and mortality. It is important to recognize, as patients may present with atypical symptoms. We describe the case of a 31-year-old man with a history of diabetes who presented with a sub-acute onset of right-sided facial weakness and right gaze difficulty with diplopia. History revealed low-grade fever, right-sided headache, fatigue and moderate weight loss for the past several weeks. The patient did not report neck stiffness, rigidity, fever, chills or cough...
December 7, 2017: Curēus
https://www.readbyqxmd.com/read/29456639/analysis-of-effect-of-1%C3%AE-hydroxyvitamin-d3-on-benign-paroxysmal-positional-vertigo-and-risk-factors
#13
Xiang Gu, Feilin Dong, Jianhua Gu
The purpose of this study was to investigate the curative effect of 1α-hydroxyvitamin D3 on the benign paroxysmal positional vertigo (BPPV). Fifty BPPV patients diagnosed in the ENT Department of Anzhen Hospital from October 2015 to December 2016 were randomly selected as the treatment group, and treated with 0.25 µg 1α-hydroxyvitamin D3 once per day, in addition to the routine diagnosis and treatment. Moreover, 50 BPPV patients in the same period were selected as the control group, and received the routine diagnosis and treatment...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29456629/acute-vitamin-c-improves-cardiac-function-not-exercise-capacity-in-adults-with-type-2-diabetes
#14
Rebecca L Scalzo, Timothy A Bauer, Kylie Harrall, Kerrie Moreau, Cemal Ozemek, Leah Herlache, Shawna McMillin, Amy G Huebschmann, Jennifer Dorosz, Jane E B Reusch, Judith G Regensteiner
Background: People with type 2 diabetes (T2D) have impaired exercise capacity, even in the absence of complications, which is predictive of their increased cardiovascular mortality. Cardiovascular dysfunction is one potential cause of this exercise defect. Acute infusion of vitamin C has been separately shown to improve diastolic and endothelial function in prior studies. We hypothesized that acute vitamin C infusion would improve exercise capacity and that these improvements would be associated with improved cardiovascular function...
2018: Diabetology & Metabolic Syndrome
https://www.readbyqxmd.com/read/29456586/dietary-canolol-protects-the-heart-against-the-deleterious-effects-induced-by-the-association-of-rapeseed-oil-vitamin-e-and-coenzyme-q10-in-the-context-of-a-high-fat-diet
#15
Thibault Leger, Isabelle Hininger-Favier, Frédéric Capel, Alain Geloen, Jean-Paul Rigaudière, Chrystèle Jouve, Elodie Pitois, Gaelle Pineau, Carole Vaysse, Jean-Michel Chardigny, Marie-Caroline Michalski, Corinne Malpuech-Brugère, Luc Demaison
Background: Obesity progressively leads to cardiac failure. Omega-3 polyunsaturated fatty acids (PUFA) have been shown to have cardio-protective effects in numerous pathological situations. It is not known whether rapeseed oil, which contains α-linolenic acid (ALA), has a similar protective effect. Omega-3 PUFAs are sensitive to attack by reactive oxygen species (ROS), and lipid peroxidation products could damage cardiac cells. We thus tested whether dietary refined rapeseed oil (RSO) associated with or without different antioxidants (vitamin E, coenzyme Q10 and canolol) is cardio-protective in a situation of abdominal obesity...
2018: Nutrition & Metabolism
https://www.readbyqxmd.com/read/29456507/the-effects-of-vitamin-d-supplementation-on-signaling-pathway-of-inflammation-and-oxidative-stress-in-diabetic-hemodialysis-a-randomized-double-blind-placebo-controlled-trial
#16
Hamed Haddad Kashani, Elahe Seyed Hosseini, Hossein Nikzad, Alireza Soleimani, Maryam Soleimani, Mohammad Reza Tamadon, Fariba Keneshlou, Zatollah Asemi
Objective: This study was carried out to determine the effects of vitamin D supplementation on signaling pathway of inflammation and oxidative stress in diabetic hemodialysis (HD) patients. Methods: This randomized double-blind placebo-controlled clinical trial was conducted among 60 diabetic HD patients. Subjects were randomly allocated into two groups to intake either vitamin D supplements at a dosage of 50,000 IU ( n = 30) or placebo ( n = 30) every 2 weeks for 12 weeks. Gene expression of inflammatory cytokines and biomarkers of oxidative stress were assessed in peripheral blood mononuclear cells (PBMCs) of diabetic HD patients with RT-PCR method...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29456394/assessment-of-vitamin-d-in-rheumatoid-arthritis-and-its-correlation-with-disease-activity
#17
Narendra Meena, Sumit Pal Singh Chawla, Ravinder Garg, Anil Batta, Sarabjot Kaur
Background: Vitamin D is believed to have an immunomodulatory and anti-inflammatory action, and its deficiency has been linked with several autoimmune disorders, including rheumatoid arthritis (RA). The relationship between the severity of RA and serum levels of Vitamin D is a subject of immense interest and therapeutic implications. Materials and Methods: This was a prospective, comparative study conducted on 100 participants, 50 cases of RA and 50 healthy controls, all in the age group of 18-75 years...
January 2018: Journal of Natural Science, Biology, and Medicine
https://www.readbyqxmd.com/read/29456204/renoprotective-effect-of-nigella-sativa-against-cisplatin-induced-nephrotoxicity-and-oxidative-stress-in-rat
#18
Sara Hosseinian, Mousa-Al-Reza Hadjzadeh, Noma Mohamadian Roshan, Majid Khazaei, Samira Shahraki, Reza Mohebbati, Abolfazl Khajavi Rad
Cisplatin is one of the important antineoplastic drugs. Its clinical use has been restricted due to severe kidney toxicity. Nigella sativa (N. sativa) is an herbaceous plant with many pharmacologic effects. In the present study, we evaluated the protective effects of aqueous-ethanolic extract of N. sativa and Vitamin E on cisplatin-induced nephrotoxicity in rats. Eighty male rats were divided into eight groups: control, cisplatin (6 mg/kg; ip), preventive Vitamin E (100 mg/kg), preventive N. sativa (100,200 mg/kg), preventive + treatment Vitamin E, and preventive + treatment N...
January 2018: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/29455523/sonchus-oleraceus-residue-improves-nutritive-and-health-promoting-value-%C3%A2-of-common-bean-phaseolus-vulgaris%C3%A2-%C3%A2-l-a-metabolic-study-%C3%A2
#19
Mahmoud O Hassan, Ahmed M Saleh, Hamada AbdElgawad
This study was conducted to evaluate the use of the phenolic-rich Sonchus ‎oleraceus residue as ‎an ‎environmentally safe approach to induce the nutritive and health-promoting values of ‎common bean ‎‎(Phaseolus vulgaris L. cv. Bronco). S. oleraceus shoot residue, at rates of 150 and 300 g m-2, has ‎improved soil ‎fertility via accumulation of soil macronutrients, ‎organic matter, organic carbon and ‎total phenolics. ‎The growth and yield of bean was significantly increased. Moreover, chemical ‎composition of ‎the treated seeds was significantly altered, whereas higher levels of total ‎antioxidant ‎capacity, ‎proteins, carbohydrates and most of the individual phenolic acids, ‎flavonoids, ‎vitamins, essential ‎amino acids, and unsaturated fatty acids were recorded...
February 17, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29455277/guava-psidium-guajava-l-cv-red-suprema-crude-extract-protect-human-dermal-fibroblasts-against-cytotoxic-damage-mediated-by-oxidative-stress
#20
José M Alvarez-Suarez, Francesca Giampieri, Massimiliano Gasparrini, Luca Mazzoni, Tamara Y Forbes-Hernández, Sadia Afrin, Maurizio Battino
We analyzed guava fruits (Psidium guajava L. cv. Red Suprema) from Cuba to determine their chemical composition, total antioxidant capacity, as well as their protective effect against oxidative damage using an in vitro model of human dermal fibroblasts. The guava fruit is a natural source of bioactive compounds, such as polyphenols, vitamin C, folates and beta carotenes with proven health benefits. Human dermal fibroblasts were pre-incubated with different concentrations of guava crude extract and then subjected to oxidative stress using the AAPH stressor...
February 17, 2018: Plant Foods for Human Nutrition
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