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Vitamin b complex

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https://www.readbyqxmd.com/read/28337428/niacin-mediated-gene-expression-and-role-of-niar-as-a-transcriptional-repressor-of-niax-nadc-and-pnuc-in-streptococcus-pneumoniae
#1
Muhammad Afzal, Oscar P Kuipers, Sulman Shafeeq
NAD (Nicotinamide Adenine Dinucleotide) biosynthesis is vital for bacterial physiology and plays an important role in cellular metabolism. A naturally occurring vitamin B complex, niacin (nicotinic acid), is a precursor of coenzymes NAD and NADP. Here, we study the impact of niacin on global gene expression of Streptococcus pneumoniae D39 and elucidate the role of NiaR as a transcriptional regulator of niaX, nadC, and pnuC. Transcriptome comparison of the D39 wild-type grown in chemically defined medium (CDM) with 0 to 10 mM niacin revealed elevated expression of various genes, including niaX, nadC, pnuC, fba, rex, gapN, pncB, gap, adhE, and adhB2 that are putatively involved in the transport and utilization of niacin...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28325140/vitamins-in-heart-failure-friend-or-enemy
#2
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/28299416/multicomponent-quantitative-spectroscopic-analysis-without-reference-substances-based-on-ica-modelling
#3
Yulia B Monakhova, Svetlana P Mushtakova
A fast and reliable spectroscopic method for multicomponent quantitative analysis of targeted compounds with overlapping signals in complex mixtures has been established. The innovative analytical approach is based on the preliminary chemometric extraction of qualitative and quantitative information from UV-vis and IR spectral profiles of a calibration system using independent component analysis (ICA). Using this quantitative model and ICA resolution results of spectral profiling of "unknown" model mixtures, the absolute analyte concentrations in multicomponent mixtures and authentic samples were then calculated without reference solutions...
March 15, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28289780/multifaceted-interaction-of-bone-muscle-lifestyle-interventions-and-metabolic-and-cardiovascular-disease-role-of-osteocalcin
#4
REVIEW
I Levinger, T C Brennan-Speranza, A Zulli, L Parker, X Lin, J R Lewis, B B Yeap
Undercarboxylated osteocalcin (ucOC) may play a role in glucose homeostasis and cardiometabolic health. This review examines the epidemiological and interventional evidence associating osteocalcin (OC) and ucOC with metabolic risk and cardiovascular disease. The complexity in assessing such correlations, due to the observational nature of human studies, is discussed. Several studies have reported that higher levels of ucOC and OC are correlated with lower fat mass and HbA1c. In addition, improved measures of glycaemic control via pharmacological and non-pharmacological (e...
March 13, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28252606/-diabetic-asymmetric-proximal-neuropathy
#5
S V Kotov, I G Rudakova, E V Isakova, Yu A Belova, T V Volchenkova, M Khirbek, G A Stashuk
AIM: To study the prevalence, clinical features and treatment of diabetic asymmetric proximal neuropathy (DAPN). MATERIAL AND METHODS: Four hundred and forty-five patients with diabetes mellitus (DM), 257 women and 188 men, mean age 47.6±0.5 years, including 163 patients with DM type I and 282 with DM type II, were examined. RESULTS AND CONCLUSION: Distal symmetric sensory motor polyneuropathy was found in 62% of the patients, autonomic neuropathy in 25...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28249598/the-prognostic-utility-of-the-transcription-factor-srf-in-docetaxel-resistant-prostate-cancer-in-vitro-discovery-and-in-vivo-validation
#6
D J Lundon, A Boland, M Prencipe, G Hurley, A O'Neill, E Kay, S T Aherne, P Doolan, S F Madden, M Clynes, C Morrissey, J M Fitzpatrick, R W Watson
BACKGROUND: Docetaxel based therapy is one of the first line chemotherapeutic agents for the treatment of metastatic castrate-resistant prostate cancer. However, one of the major obstacles in the treatment of these patients is docetaxel-resistance. Defining the mechanisms of resistance so as to inform subsequent treatment options and combinations represents a challenge for clinicians and scientists. Previous work by our group has shown complex changes in pro and anti-apoptotic proteins in the development of resistance to docetaxel...
March 1, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28185129/folic-acid-protects-against-glutamate-induced-excitotoxicity-in-hippocampal-slices-through-a-mechanism-that-implicates-inhibition-of-gsk-3%C3%AE-and-inos
#7
Josiane Budni, Simone Molz, Tharine Dal-Cim, Maria Dolores Martín-de-Saavedra, Javier Egea, Manuela G Lopéz, Carla Ines Tasca, Ana Lúcia Severo Rodrigues
Folic acid (folate) is a vitamin of the B-complex group crucial for neurological function. Considering that excitotoxicity and cell death induced by glutamate are involved in many disorders, the potential protective effect of folic acid on glutamate-induced cell damage in rat hippocampal slices and the possible intracellular signaling pathway involved in such effect were investigated. The treatment of hippocampal slices with folic acid (100 μM) significantly abrogated glutamate (1 mM)-induced reduction of cell viability measured by MTT reduction assay and inhibited glutamate-induced D-[(3)H]-aspartate release...
February 10, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28178022/the-impact-of-essential-fatty-acid-b-vitamins-vitamin-c-magnesium-and-zinc-supplementation-on-stress-levels-in-women-a-systematic-review
#8
Delia McCabe, Karolina Lisy, Craig Lockwood, Marc Colbeck
BACKGROUND: Women juggling multiple roles in our complex society are increasingly experiencing psychological stress. Dietary supplementation to manage stress is widespread despite limited supporting evidence. A systematic review of the available literature was undertaken to investigate the efficacy of specific dietary supplements in managing female stress and anxiety. OBJECTIVES: To identify the impact of essential fatty acids (EFAs), B vitamins, vitamin C, magnesium and/or zinc, consumed as dietary supplements to the daily diet, on female stress and anxiety levels...
February 2017: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/28166217/drugs-and-drug-like-molecules-can-modulate-the-function-of-mucosal-associated-invariant-t-cells
#9
Andrew N Keller, Sidonia B G Eckle, Weijun Xu, Ligong Liu, Victoria A Hughes, Jeffrey Y W Mak, Bronwyn S Meehan, Troi Pediongco, Richard W Birkinshaw, Zhenjun Chen, Huimeng Wang, Criselle D'Souza, Lars Kjer-Nielsen, Nicholas A Gherardin, Dale I Godfrey, Lyudmila Kostenko, Alexandra J Corbett, Anthony W Purcell, David P Fairlie, James McCluskey, Jamie Rossjohn
The major-histocompatibility-complex-(MHC)-class-I-related molecule MR1 can present activating and non-activating vitamin-B-based ligands to mucosal-associated invariant T cells (MAIT cells). Whether MR1 binds other ligands is unknown. Here we identified a range of small organic molecules, drugs, drug metabolites and drug-like molecules, including salicylates and diclofenac, as MR1-binding ligands. Some of these ligands inhibited MAIT cells ex vivo and in vivo, while others, including diclofenac metabolites, were agonists...
April 2017: Nature Immunology
https://www.readbyqxmd.com/read/28160759/five-herbs-plus-thiamine-reduce-pain-and-improve-functional-mobility-in-patients-with-pain-a-pilot-study
#10
Robert Hedaya
Context • Five herbs-Urtica dioica (stinging nettle), Boswellia serrata, Equisetum arvense, Allium sativum, and Apium graveolens-have been demonstrated to have activity at several anti-inflammatory pathways and have analgesic properties that are effective in treating chronic musculoskeletal pain. Objectives • The study intended to evaluate the clinical efficacy of a proprietary blend of U dioica, B serrata, E arvense, A sativum, A graveolens, and thiamine (vitamin B1), or "the blend," in the treatment of chronic musculoskeletal pain...
January 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/28157653/efficacy-of-vitamin-b-complex-as-an-adjuvant-therapy-for-the-treatment-of-complicated-vulvovaginal-candidiasis-an-in-vivo-and-in-vitro-study
#11
RANDOMIZED CONTROLLED TRIAL
Mei-Guo Sun, Ying Huang, Yuan-Hong Xu, Yun-Xia Cao
OBJECTIVE: This study aimed to explore the efficacy of vitamin B complex as an adjuvant therapy for the treatment of complicated vulvovaginal candidiasis (VVC) in vitro and in vivo. METHODS: One-hundred fifty-eight complicated VVC patients were randomly divided into group A (treated with suppository+oral antifungal agents), group B (treated with suppository+vaginal cream), and group C (treated with suppository+vaginal cream+oral vitamin B complex). A mouse model of VVC was established...
April 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28148674/computer-hexapod-assisted-orthopaedic-surgery-provides-a-predictable-and-safe-method-of-femoral-deformity-correction
#12
A Hughes, N Heidari, S Mitchell, J Livingstone, M Jackson, R Atkins, F Monsell
AIMS: Computer hexapod assisted orthopaedic surgery (CHAOS), is a method to achieve the intra-operative correction of long bone deformities using a hexapod external fixator before definitive internal fixation with minimally invasive stabilisation techniques. The aims of this study were to determine the reliability of this method in a consecutive case series of patients undergoing femoral deformity correction, with a minimum six-month follow-up, to assess the complications and to define the ideal group of patients for whom this treatment is appropriate...
February 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28116392/the-influence-of-lipid-droplet-size-on-the-oral-bioavailability-of-vitamin-d2-encapsulated-in-emulsions-an-in-vitro-and-in-vivo-study
#13
L Salvia-Trujillo, B Fumiaki, Y Park, D J McClements
Vitamin D deficiency is prevalent in some populations leading to adverse health effects, and therefore there is a need to supplement functional foods and beverages with this important micronutrient. In this study, we examined the influence of the initial lipid droplet size on the in vitro bioaccessibility and in vivo absorption of vitamin D2 encapsulated in oil-in-water emulsions. Changes in particle size, charge, and microstructure were measured as vitamin-loaded lipid droplets were passed through a simulated GIT (mouth, stomach, small intestine)...
January 24, 2017: Food & Function
https://www.readbyqxmd.com/read/28089775/degenerative-effects-of-cobalt-chloride-treatment-on-neurons-and-microglia-in-a-porcine-retina-organ-culture-model
#14
S Kuehn, J Hurst, F Rensinghoff, T Tsai, S Grauthoff, Y Satgunarajah, H B Dick, S Schnichels, S C Joachim
In order to understand the pathological processes of retinal diseases, experimental models are necessary. Cobalt, as part of the vitamin B12 complex, is important for neuronal integrity. However, it is known that high quantities of cobalt induce cytotoxic mechanisms via hypoxia mimicry. Therefore, we tested the degenerative effect of cobalt chloride (CoCl2) on neurons and microglia in a porcine retina organ culture model. Organotypic cultures of porcine retinas were cultured and treated with different concentrations of CoCl2 (0, 100, 300 and 500 μM) for 48 h...
January 12, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28080896/traumatic-foreign-body-pericarditis-in-a-toco-toucan-ramphastos-toco
#15
Mireia Máinez, Jorge Rosell, Roger Such, Teresa Cardona, Carles Juan-Sallés
An approximately 10-yr-old, captive-born female toco toucan ( Ramphastos toco ) was presented due to an acute onset of depression and apathy. On visual and physical examination, it showed an abnormal posture and dehydration, respectively. Serum biochemistry revealed hyperuricemia (39.4 mg/dl) and elevated glutamic oxaloacetic transaminase (GOT; 1,050 U/L). Radiographs demonstrated an enlargement of the cardiac silhouette. The bird died 7 days after presentation, despite treatment with enrofloxacin, allopurinol, a preparation of hepatorenal protectors, and complex B vitamins with dextrose...
December 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28078918/dietary-practices-of-children-and-adolescents-with-down-syndrome
#16
Marina Lummertz Magenis, Alessandra Gonçalves Machado, Angela Martinha Bongiolo, Marco Antonio da Silva, Kamila Castro, Ingrid Dalira Schweigert Perry
The aim of this study was to assess dietary intake, breastfeeding history, weight at birth and current weight in children and adolescents with Down syndrome (DS). Therefore, a cross-sectional, controlled study with 19 DS participants and 19 controls without DS matched by gender and age was performed. Except for vitamin D, a lower or the same frequency of insufficient intake in other micronutrients was noted in participants compared with controls. The DS group had a reduced exclusive breastfeeding duration and increased carbohydrate and caloric intake...
January 1, 2017: Journal of Intellectual Disabilities: JOID
https://www.readbyqxmd.com/read/28071030/the-effect-of-replacing-pork-fat-of-inulin-on-the-physicochemical-and-sensory-quality-of-guinea-fowl-pate
#17
Agnieszka Latoch, Paweł Glibowski, Justyna Libera
BACKGROUND: Potentially, pâtés could be a functional food and are an important source of proteins, vitamin A, B complex vitamins and iron. Unfortunately, one problem in pâtés is the high level of animal fat, about 30%. Pâté with low-fat guinea fowl meat and animal fat replaced with inulin can result in this product being classified as a pro-health food. The objective of the present study was to determine the effect on pâté with guinea fowl meat of reducing its pork back fat content (about 1/3, 2/3 and 100%) and the adding inulin as a partial fat substitute...
July 2016: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28065190/cholecalciferol-v-ergocalciferol-for-25-hydroxyvitamin-d-25-oh-d-repletion-in-chronic-kidney-disease-a-randomised-clinical-trial
#18
James B Wetmore, Cassandra Kimber, Jonathan D Mahnken, Jason R Stubbs
Patients with chronic kidney disease (CKD) demonstrate complex mineral metabolism derangements and a high prevalence of vitamin D deficiency. However, the optimal method of 25-hydroxyvitamin D (25(OH)D) repletion is unknown, and trials analysing the comparative efficacy of cholecalciferol and ergocalciferol in this population are lacking. We conducted a randomised clinical trial of cholecalciferol 1250μg (50 000 IU) weekly v. ergocalciferol 1250μg (50 000 IU) weekly for 12 weeks in forty-four non-dialysis-dependent patients with stage 3-5 CKD...
December 2016: British Journal of Nutrition
https://www.readbyqxmd.com/read/28046179/bill-e-kunkle-interdisciplinary-beef-symposium-impact-of-mineral-and-vitamin-status-on-beef-cattle-immune-function-and-health
#19
E B Kegley, J J Ball, P A Beck
The importance of optimal mineral and vitamin nutrition on improving immune function and health has been recognized in the preceding decades. In the southeast, beef cattle are raised predominantly on forages that may be limiting in nutrients for optimal health, especially trace minerals such as Cu, Zn, and Se. Clinical deficiencies of these nutrients produce classic symptoms that are common to several nutrient deficiencies (e.g., slow growth and unthrifty appearance); however, subclinical deficiencies are more widespread and more difficult to detect, yet may result in broader economic losses...
December 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/28025000/determination-of-water-soluble-and-fat-soluble-vitamins-in-tears-and-blood-serum-of-infants-and-parents-by-liquid-chromatography-mass-spectrometry
#20
Maryam Khaksari, Lynn R Mazzoleni, Chunhai Ruan, Robert T Kennedy, Adrienne R Minerick
Tears serve as a viable diagnostic fluid with advantages including less invasive sample to collect and less complex to prepare for analysis. Several water-soluble and fat-soluble vitamins were detected and quantified in human tears and compared with blood serum levels. Samples from 15 family pairs, each pair consisting of a four-month-old infant and one parent were analyzed; vitamin concentrations were compared between tears and blood serum for individual subjects, between infants and parents, and against self-reported dietary intakes...
December 23, 2016: Experimental Eye Research
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