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https://www.readbyqxmd.com/read/27936456/1%C3%AE-25-dihydroxyvitamin-d-inhibits-de-novo-fatty-acid-synthesis-and-lipid-accumulation-in-metastatic-breast-cancer-cells-through-down-regulation-of-pyruvate-carboxylase
#1
Tomasz Wilmanski, Kimberly Buhman, Shawn S Donkin, John R Burgess, Dorothy Teegarden
Both increased de novo fatty acid synthesis and higher neutral lipid accumulation are a common phenotype observed in aggressive breast cancer cells, making lipid metabolism a promising target for breast cancer prevention. In the present studies, we demonstrate a novel effect of the active metabolite of vitamin D, 1α,25-dihydroxyvitamin D (1,25(OH)₂D) on lipid metabolism in malignant breast epithelial cells. Treatment of MCF10CA1a breast epithelial cells with 1,25(OH)₂D (10 nM) for 5 and 7 days decreased the level of triacylglycerol, the most abundant form of neutral lipids, by 20%(±3...
December 1, 2016: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/27936288/staple-crops-biofortified-with-increased-vitamins-and-minerals-considerations-for-a-public-health-strategy
#2
Maria Nieves Garcia-Casal, Juan Pablo Peña-Rosas, Boitshepo Giyose
Biofortification of staple crops has been proposed as a strategy to address micronutrient malnutrition, particularly with respect to insufficient intake of vitamin A, iron, zinc, and folate. The World Health Organization, in collaboration with the Food and Agriculture Organization of the United Nations and the Sackler Institute for Nutrition Science at the New York Academy of Sciences, convened a technical consultation entitled "Staple Crops Biofortified with Vitamins and Minerals: Considerations for a Public Health Strategy" in April 2016...
December 9, 2016: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/27936124/low-serum-levels-of-vitamins-a-d-and-e-are-associated-with-recurrent-respiratory-tract-infections-in-children-living-in-northern-china-a-case-control-study
#3
Xuguang Zhang, Fengshu Ding, Huaining Li, Wenfeng Zhao, Hong Jing, Yageng Yan, Yanping Chen
BACKGROUND: This study aimed to investigate the association of serum concentrations of vitamin A, D, and E with recurrent respiratory tract infections (RRTIs). METHODS: A total of 1200 children aged at 0.5-14 years were selected via a face-to-face survey in Harbin, China. Among the participants, 600 children with RRTIs comprised the symptomatic group (RRTI group), whereas 600 healthy children were used as controls (control group). Blood samples were collected to measure serum levels of vitamins A and E by HPLC; the serum level of 25-hydroxycholecalciferol (25(OH)D), was measured by HPLC-MS/MS...
2016: PloS One
https://www.readbyqxmd.com/read/27935987/patient-reported-treatment-satisfaction-with-rivaroxaban-for-stroke-prevention-in-atrial-fibrillation-a-french-observational-study-the-safari-study
#4
Olivier Hanon, Edouard Chaussade, Pierre Gueranger, Elise Gruson, Sabrina Bonan, Alain Gay
BACKGROUND: For antithrombotic treatments, Patient Reported Outcomes (PRO) and patient satisfaction with treatment are essential data for physicians because of the strong relationship between patient satisfaction and adherence to treatment. The impact of rivaroxaban on patient satisfaction and quality of life was not sufficiently documented in phase III studies. There is a need for further data in this field especially in real life conditions. METHODS: The SAFARI study is composed of patients with non-valvular atrial fibrillation (AF), previously treated with vitamin K antagonist (VKA) and switched to rivaroxaban...
2016: PloS One
https://www.readbyqxmd.com/read/27935983/involvement-of-pancreatic-stellate-cells-in-regeneration-of-remnant-pancreas-after-partial-pancreatectomy
#5
Shigenori Ota, Miyuki Nishimura, Yuya Murakami, Naoko Kubo Birukawa, Akihiro Yoneda, Hiroki Nishita, Ryosuke Fujita, Yasushi Sato, Kenjiro Minomi, Keiko Kajiwara, Miyono Miyazaki, Maki Uchiumi, Shintaro Mikuni, Yasuaki Tamura, Toru Mizuguchi, Masafumi Imamura, Makoto Meguro, Yasutoshi Kimura, Koichi Hirata, Yoshiro Niitsu
BACKGROUND AND OBJECTIVES: Mechanism of regeneration of remnant pancreas after partial pancreatectomy (PX) is still unknown. In this study, effect of siRNA against the collagen specific chaperone, HSP47, which inhibits collagen secretion from activated pancreas stellate cells (aPSCs), and induces their apoptosis, on regeneration of remnant pancreas was determined. METHODS: Pancreatectomy was performed according to established methods. Proliferation of cells was assessed by BrdU incorporation...
2016: PloS One
https://www.readbyqxmd.com/read/27935941/objectives-and-design-of-bleeds-a-cohort-study-to-identify-new-risk-factors-and-predictors-for-major-bleeding-during-treatment-with-vitamin-k-antagonists
#6
Nienke van Rein, Willem M Lijfering, Mettine H A Bos, Martien H Herruer, Helga W Vermaas, Felix J M van der Meer, Pieter H Reitsma
BACKGROUND: Risk scores for patients who are at high risk for major bleeding complications during treatment with vitamin K antagonists (VKAs) do not perform that well. BLEEDS was initiated to search for new biomarkers that predict bleeding in these patients. OBJECTIVES: To describe the outline and objectives of BLEEDS and to examine whether the study population is generalizable to other VKA treated populations. METHODS: A cohort was created consisting of all patients starting VKA treatment at three Dutch anticoagulation clinics between January-2012 and July-2014...
2016: PloS One
https://www.readbyqxmd.com/read/27935602/effectiveness-and-safety-of-nutritional-supplements-in-the-treatment-of-hereditary-retinal-dystrophies-a-systematic-review
#7
REVIEW
N Brito-García, T Del Pino-Sedeño, M M Trujillo-Martín, R M Coco, E Rodríguez de la Rúa, I Del Cura-González, P Serrano-Aguilar
The hereditary retinal dystrophies (HRDs) are a group of genetically determined disorders that result in loss of the visual function. There is a lack of standard pharmacological treatments or widely accepted nutritional recommendations. The objective of this review is to summarise the scientific evidence on the effectiveness and safety of nutritional supplements for the treatment of HRDs. We conducted a scientific literature search on Medline and PreMedline, EMBASE, SCI-EXPANDED, SSCI, and The Cochrane Library up to August 2014...
December 9, 2016: Eye
https://www.readbyqxmd.com/read/27935592/molecular-insights-into-a-dinoflagellate-bloom
#8
Weida Gong, Jamie Browne, Nathan Hall, David Schruth, Hans Paerl, Adrian Marchetti
In coastal waters worldwide, an increase in frequency and intensity of algal blooms has been attributed to eutrophication, with further increases predicted because of climate change. Yet, the cellular-level changes that occur in blooming algae remain largely unknown. Comparative metatranscriptomics was used to investigate the underlying molecular mechanisms associated with a dinoflagellate bloom in a eutrophied estuary. Here we show that under bloom conditions, there is increased expression of metabolic pathways indicative of rapidly growing cells, including energy production, carbon metabolism, transporters and synthesis of cellular membrane components...
December 9, 2016: ISME Journal
https://www.readbyqxmd.com/read/27935586/use-of-plankton-derived-vitamin-b1-precursors-especially-thiazole-related-precursor-by-key-marine-picoeukaryotic-phytoplankton
#9
Ryan W Paerl, Francois-Yves Bouget, Jean-Claude Lozano, Valérie Vergé, Philippe Schatt, Eric E Allen, Brian Palenik, Farooq Azam
Several cosmopolitan marine picoeukaryotic phytoplankton are B1 auxotrophs requiring exogenous vitamin B1 or precursor to survive. From genomic evidence, representatives of picoeukaryotic phytoplankton (Ostreococcus and Micromonas spp.) were predicted to use known thiazole and pyrimidine B1 precursors to meet their B1 demands, however, recent culture-based experiments could not confirm this assumption. We hypothesized these phytoplankton strains could grow on precursors alone, but required a thiazole-related precursor other the well-known and extensively tested 4-methyl-5-thiazoleethanol...
December 9, 2016: ISME Journal
https://www.readbyqxmd.com/read/27935525/association-of-dietary-protein-and-dairy-intakes-and-change-in-renal-function-results-from-the-population-based-longitudinal-doetinchem-cohort-study
#10
Gerrie-Cor M Herber-Gast, Sander Biesbroek, Wm Monique Verschuren, Coen DA Stehouwer, Ron T Gansevoort, Stephan Jl Bakker, Annemieke Mw Spijkerman
BACKGROUND: Evidence has suggested that protein from dairy may be less detrimental to renal health than protein from nondairy products. However, to our knowledge, no previous studies have used cystatin C-based measures of the estimated glomerular filtration rate (eGFR). OBJECTIVE: We investigated the associations of sources of protein and dairy with the change in the eGFR in persons with a normal or mildly decreased eGFR. DESIGN: We included 3798 participants, aged 26-65 y, from the Doetinchem Cohort study who were examined ≥3 times 5 y apart...
December 2016: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/27935135/micro-rna-550a-interferes-with-vitamin-d-metabolism-in-peripheral-b-cells-of-patients-with-diabetes
#11
Jinggui He, Xiyun Guo, Zhi-Qiang Liu, Ping-Chang Yang, Shaobo Yang
The pathogenesis of diabetes is to be further investigated. Vitamin D3 (VitD3) can improve diabetes. Micro RNAs (miR) are involved in regulating cell activities. This study tests a hypothesis that miR-550a interferes with the metabolism of VitD3 in peripheral B cells. In this study, blood samples were collected from patients with diabetes and healthy persons. The B cells were isolated from the blood samples to be treated with tumor necrosis factor (TNF)-α. The B cells were then collected and analyzed for the expression of miR-550a and cyp27b1...
December 2016: Cell Biochemistry and Function
https://www.readbyqxmd.com/read/27934911/effect-of-kelp-waste-extracts-on-the-growth-and-development-of-pakchoi-brassica-chinensis-l
#12
Shiyan Zheng, Jie Jiang, Meilin He, Shanmei Zou, Changhai Wang
To explore the effects of kelp waste extracts (KWE) on the growth and development of Brassia chinensis L., germination and greenhouse experiments were carried out under different concentrations of KWE. The results showed that a higher germination percentage (95%), associated with high germination index (8.70), germination energy (71.67%) and seedling vigor index (734.67), was obtained under a lower KWE concentration (2%) compared with the control. The radicle length (4.97 cm), fresh weight (0.32 g/10 seedlings) and dry weight (0...
December 9, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27934854/interactions-between-genetic-lifestyle-and-environmental-risk-factors-for-multiple-sclerosis
#13
REVIEW
Tomas Olsson, Lisa F Barcellos, Lars Alfredsson
Genetic predisposition to multiple sclerosis (MS) only explains a fraction of the disease risk; lifestyle and environmental factors are key contributors to the risk of MS. Importantly, these nongenetic factors can influence pathogenetic pathways, and some of them can be modified. Besides established MS-associated risk factors - high latitude, female sex, smoking, low vitamin D levels caused by insufficient sun exposure and/or dietary intake, and Epstein-Barr virus (EBV) infection - strong evidence now supports obesity during adolescence as a factor increasing MS risk...
December 9, 2016: Nature Reviews. Neurology
https://www.readbyqxmd.com/read/27934803/chronic-vitamin-a-enriched-diet-feeding-regulates-hypercholesterolaemia-through-transcriptional-regulation-of-reverse-cholesterol-transport-pathway-genes-in-obese-rat-model-of-wnin-gr-ob-strain
#14
Shanmugam M Jeyakumar, Alex Sheril, Ayyalasomayajula Vajreswari
BACKGROUND & OBJECTIVES: Hepatic scavenger receptor class B1 (SR-B1), a high-density lipoprotein (HDL) receptor, is involved in the selective uptake of HDL-associated esterified cholesterol (EC), thereby regulates cholesterol homoeostasis and improves reverse cholesterol transport. Previously, we reported in euglycaemic obese rats (WNIN/Ob strain) that feeding of vitamin A-enriched diet normalized hypercholesterolaemia, possibly through hepatic SR-B1-mediated pathway. This study was aimed to test whether it would be possible to normalize hypercholesterolaemia in glucose-intolerant obese rat model (WNIN/GR/Ob) through similar mechanism by feeding identical vitamin A-enriched diet...
August 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/27934637/management-of-rodent-populations-by-anticoagulant-rodenticides-toward-third-generation-anticoagulant-rodenticides
#15
Marlene Damin-Pernik, Bernadette Espana, Sebastien Lefebvre, Isabelle Fourel, Herve Caruel, Etienne Benoit, Virginie Lattard
Second-generation anticoagulant rodenticides (SGARs) have been used since the 1980s for pest management. They are highly efficient even in warfarin-resistant rodents. Nevertheless, because of their tissue persistence, non-target poisoning by SGARs is commonly described in wildlife. Due to this major problem, a new generation of anticoagulants must be developed to limit this risk. This study proposes a method of developing a new generation of anticoagulant rodenticides by re-visiting the old SGARs based on the concept of stereochemistry...
December 1, 2016: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/27934624/safety-profile-of-1-25-dihydroxyvitamin-d3-of-herbal-origin-in-broiler-chicken
#16
G Mathis, R Boland, H Bachmann, A Toggenburger, W Rambeck
The safety of supplementing broiler feed with a standardised herbal extract, Solanum Glaucophyllum Standardised Leaves (SGSL) containing glycosylated 1a,25-dihydroxyvitamin D3 (1,25(OH)2D3) and standardised to contain 10 µg/g 1,25(OH)2D3 equivalent, was examined in two studies. In a first study, we examined the potential of SGSL to substitute vitamin D3 (VD3) and the tolerated dose range of SGSL when applied without concomitant VD3 by analyzing performance and blood chemical parameters after 14, 25 and 38 days on diets containing two doses of SGSL (1 and 10 g/kg feed) as source of 1,25(OH)2D3...
December 2016: Schweizer Archiv Für Tierheilkunde
https://www.readbyqxmd.com/read/27933791/mechanistic-insights-from-the-crystal-structure-of-bacillus-subtilis-o-succinylbenzoyl-coa-synthetase-complexed-with-the-adenylate-intermediate
#17
Yaozong Chen, Yiping Jiang, Zhihong Guo
o-Succinylbenzoyl-CoA (OSB-CoA) synthetase, or MenE, catalyzes an essential step in vitamin K biosynthesis and is a valuable drug target. Like many other adenylating enzymes, it changes its structure to accommodate substrate binding, catalysis, and product release along the path of a domain alternation catalytic mechanism. We have determined the crystal structure of its complex with the adenylation product, o-succinylbenzoyl-adenosine monophosphate (OSB-AMP), and captured a new postadenylation state. This structure presents unique features such as a strained conformation for the bound adenylate intermediate to indicate that it represents the enzyme state after completion of the adenylation reaction but before release of the C domain in its transition to the thioesterification conformation...
December 6, 2016: Biochemistry
https://www.readbyqxmd.com/read/27933711/using-a-co-production-prioritization-exercise-involving-south-asian-children-young-people-and-their-families-to-identify-health-priorities-requiring-further-research-and-public-awareness
#18
Logan Manikam, Rakhee Shah, Kate Reed, Gupreet Santini, Monica Lakhanpaul
OBJECTIVES: To facilitate South Asian (SA) families and health-care professionals (HCPs) participation in a prioritization exercise to co-produce child health research and public awareness agendas. DESIGN: A three-stage process was adopted involving the following: (i) systematic literature review, (ii) HCP scoping survey and (iii) focus groups of SA adolescents and families. A Punjabi- and Urdu-speaking community facilitator moderated focus groups. A British Sign Language interpreter assisted in the hard of hearing group...
December 8, 2016: Health Expectations: An International Journal of Public Participation in Health Care and Health Policy
https://www.readbyqxmd.com/read/27933569/decision-making-in-clinical-practice-oral-anticoagulant-therapy-in-patients-with-non-valvular-atrial-fibrillation-and-a-single-additional-stroke-risk-factor
#19
REVIEW
Tatjana S Potpara, Nikolaos Dagres, Nebojša Mujović, Dragan Vasić, Milika Ašanin, Milan Nedeljkovic, Francisco Marin, Laurent Fauchier, Carina Blomstrom-Lundqvist, Gregory Y H Lip
Approximately 1 in 3-4 patients presenting with an ischemic stroke will also have atrial fibrillation (AF), and AF-related strokes can be effectively prevented using oral anticoagulant therapy (OAC), either with well-controlled vitamin K antagonists (VKAs) or non-vitamin K antagonist oral anticoagulants (NOACs). In addition, OAC use (both VKAs and NOACs) is associated with a 26% reduction in all-cause mortality (VKAs) or an additional 10% mortality reduction with NOACs relative to VKAs. The decision to use OAC in individual AF patient is based on the estimated balance of the benefit from ischemic stroke reduction against the risk of major OAC-related bleeding [essentially intracranial hemorrhage (ICH)]...
December 8, 2016: Advances in Therapy
https://www.readbyqxmd.com/read/27933507/determinants-of-maternal-vitamin%C3%A2-d-concentrations-in-slovenia-a%C3%A2-prospective-observational-study
#20
Andraž Dovnik, Faris Mujezinović, Milena Treiber, Breda Pečovnik Balon, Maksimiljan Gorenjak, Uroš Maver, Iztok Takač
OBJECTIVE: To analyze the vitamin D status of pregnant women in Slovenia and the factors influencing it. METHODS: The study was performed in Maribor University Medical Centre (location 46°N). Maternal serum 25-hydroxy-vitamin D (25(OH)D) in 4 groups of 100 pregnant women in 4 different seasons of the year was measured at the time of delivery. Data on life style, eating habits, sunbathing and intake of vitamin D supplements during pregnancy were obtained using a questionnaire...
December 8, 2016: Wiener Klinische Wochenschrift
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