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Vit C

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https://www.readbyqxmd.com/read/29770585/exploring-the-effect-of-vitamin-e-in-cancer-chemotherapy-a-biochemical-and-biophysical-insight
#1
Mustansir Bhori, Kanchanlata Singh, Thankamani Marar, C MuraliKrishna
Many oncologists contend that patient undergoing chemotherapy must avoid antioxidant supplementation as it may interfere with the activity of the drug. In the present investigation, we have explored the influence of vitamin E, a well known antioxidant on Camptothecin (CPT), a potent anti-cancer drug induced cell apoptosis and death of cervical cancer cells. HeLa cells were treated with different concentrations of CPT in presence and absence of 100μm vitamin E. Treated cells were subjected to cytotoxicity studies, catalase assay, DNA fragmentation assay, clonogenic assay and flow cytometry based apoptosis detection...
May 16, 2018: Journal of Biophotonics
https://www.readbyqxmd.com/read/29748672/double-sided-3d-printing-on-paper-towards-mass-production-of-three-dimensional-paper-based-microfluidic-analytical-devices-3d-%C3%AE-pads
#2
Chanyong Park, Yong Duk Han, Han Vit Kim, Jinkee Lee, Hyun C Yoon, Sungsu Park
Recently, much effort has been focused on developing three-dimensional, paper-based microfluidic analytical devices (3D-μPADs) targeting in vitro diagnostics. However, 3D-μPAD fabrication typically requires tedious assembly that hinders mass production. Here, we report on a fabrication method for 3D-μPADs made of plastics without the need for additional assembly. Both sides of the paper were printed via liquid resin photopolymerization using a digital light processing (DLP) printer. The sample reservoir and detection zones are located on the top of the 3D-μPADs, and three microchannels are located on the bottom...
May 11, 2018: Lab on a Chip
https://www.readbyqxmd.com/read/29734420/the-complementary-effect-of-cholesterol-and-vitamin-e-preloaded-in-cyclodextrins-on-frozen-bovine-semen-motility-parameters-membrane-integrity-and-lipid-peroxidation
#3
A Khellouf, K Benhenia, S Fatami, M Iguer-Ouada
BACKGROUND: During cryopreservation sperm cells suffer from two major deleterious impacts: oxidative stress and cold shock. OBJECTIVE: To investigate in bovine species the benefit of cholesterol and vitamin E, both loaded in cyclodextrins, as a double protection against oxidative stress and cold shock. MATERIALS AND METHODS: Semen was collected from nine mature bulls using an artificial vagina and each ejaculate was split into four equal aliquots...
March 2018: Cryo Letters
https://www.readbyqxmd.com/read/29728855/influence-of-moringa-oleifera-extract-vitamin-c-and-sodium-bicarbonate-on-heat-stress-induced-hsp70-expression-and-cellular-immune-response-in-rabbits
#4
Mahmoud Abdel-Latif, Thabet Sakran, Yasser K Badawi, Doaa S Abdel-Hady
The current study aimed to test the effect of Moringa oleifera extract (MOE), vitamin (Vit) C, and sodium bicarbonate (NaHCO3 ) on heat stress (HS)-induced alterations in rabbits. Five groups of rabbits were designed as control, HS, HS + MOE, HS + Vit C, and HS + NaHCO3 . HS groups were exposed to high temperatures, while treatments were given in drinking water for 6 weeks. Levels of blood cortisol, leptin, IFN-γ, TNF-α, and IL-10 were assayed using ELISA, while adrenaline was assayed calorimetrically...
May 4, 2018: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/29715519/oxidative-stress-contributes-to-fracture-cast-induced-inflammation-and-pain-in-a-rat-model-of-complex-regional-pain-syndrome
#5
Tian-Zhi Guo, Tzuping Wei, Ting-Ting Huang, Wade S Kingery, John David Clark
Clinical evidence suggests vitamin C (Vit C) may protect against the development of complex regional pain syndrome (CRPS) after fracture and/or surgery. Tibia fracture followed by 4 weeks cast immobilization (fracture/cast) in rats results in nociceptive, vascular, and bone changes resembling clinical CRPS. In the present study, fracture/cast rats were treated with the oxidative stress inhibitors Vit C, N-acetyl cysteine (NAC) or 4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl (TEMPOL) to examine their effects on CRPS-related nociceptive and vascular changes...
April 28, 2018: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/29627549/prolonged-exposure-of-di-2-ethylhexyl-phthalate-induces-multigenerational-toxic-effects-in-caenorhabditis-elegans
#6
Shang-Wei Li, Chun Ming How, Vivian Hsiu-Chuan Liao
The plasticizer di(2-ethylhexyl) phthalate (DEHP) is an emerging organic contaminant that has represented a risk for organisms present in the environment. However, there is still limited information regarding DEHP-induced multigenerational toxicity and the underlying mechanisms. In this study we investigated the multigenerational toxic effects including locomotive behaviors and reproduction upon prolonged DEHP exposure (from larval L1 to adult) and the underlying mechanisms in the nematode Caenorhabditis elegans...
April 5, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29606435/vitamin-d-biofortified-beef-a-comparison-of-cholecalciferol-with-synthetic-versus-uvb-mushroom-derived-ergosterol-as-feed-source
#7
Sarah K Duffy, John V O'Doherty, Gaurav Rajauria, Louise C Clarke, Aoife Hayes, Kirsten G Dowling, Michael N O'Grady, Joseph P Kerry, Jette Jakobsen, Kevin D Cashman, Alan K Kelly
This study investigates dietary fortification of heifer feeds with cholecalciferol and ergocalciferol sources and effects on beef total vitamin D activity, vitamer, respective 25-hydroxymetabolite contents, and meat quality. Thirty heifers were allocated to one of three dietary treatments [(1) basal diet + 4000 IU of vitamin D3 (Vit D3 ); (2) basal diet + 4000 IU of vitamin D2 (Vit D2 ); and (3) basal diet + 4000 IU of vitamin D2 -enriched mushrooms (Mushroom D2 )] for a 30 day pre-slaughter period...
August 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29602133/penconazole-alters-redox-status-cholinergic-function-and-lung-s-histoarchitecture-of-adult-rats-reversal-effect-of-vitamin-e
#8
Mariem Chaâbane, Awatef Elwej, Imen Ghorbel, Sabrine Chelly, Hela Mnif, Tahia Boudawara, Semia Ellouze Chaabouni, Najiba Zeghal, Nejla Soudani
The present study pertains to the possible adverse effects of penconazole exposure on the lung of adult rats, and to the potential ability of vitamin E (Vit E) in mitigating the toxicity induced by this fungicide. Male Wistar rats were divided into four groups of six animals each: Group I (Controls): rats drank distilled water; Group II (PEN): rats received, by gavage, 50 mg/kg body weight (1/40 LD50 ) of penconazole every 2 days during 10 days; Group III (Vit E): rats received daily 100 mg α-tocopherol acetate/kg body weight during 10 days by gavage; and Group IV (Vit E + PEN): rats received both vitamin E (100 mg α-tocopherol acetate/kg body weight) and penconazole (50 mg/kg body weight), being vitamin E given as a daily dosage and penconazole every 2 days, by gavage during 10 days...
March 27, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29589586/tryptase-increase-on-the-first-day-of-hymenoptera-venom-immunotherapy-might-be-a-predictor-of-future-systemic-reactions-during-treatment
#9
A Vega-Castro, A Alonso-Llamazares, R Cárdenas, J M Beitia, B Mateo, I Alvarez-Twose, C Blanco
BACKGROUND AND OBJECTIVE: Serum tryptase (ST) decreases in long-term venom immunotherapy (VIT). A circadian tryptase variation with a small decrease has been found after sting challenge. Both findings have been related to successful VIT. Objective: To assess whether variation (increase or decrease) in ST on the first day of VIT is associated with the likehood of future systemic adverse reactions (SAR) during treatment. METHODS: We prospectively studied patients who underwent cluster VIT and continued it for at least 6 months...
March 28, 2018: Journal of Investigational Allergology & Clinical Immunology
https://www.readbyqxmd.com/read/29567599/vitamin-c-linker-conjugated-tripeptide-ahk-stimulates-bmp-2-induced-osteogenic-differentiation-of-mouse-myoblast-c2c12-cells
#10
Jung-Il Jung, Kyeong-Yong Park, Yura Lee, Mira Park, Jiyeon Kim
Vitamin C-linker-conjugated Ala-His-Lys tripeptide (Vit C-AHK) is a derivative of Vitamin C-conjugated tripeptides, which were originally developed as a component of a product for collagen synthesis enhancement or human dermal fibroblast growth. Here, we investigated the effect of Vit C-AHK on bone morphogenetic protein (BMP)-2-induced osteoblast differentiation in a cell culture model. Vit C-AHK enhanced proliferation of C2C12 cells and induction of BMP-2-induced alkaline phosphatase, a typical marker of osteoblast differentiation...
March 15, 2018: Differentiation; Research in Biological Diversity
https://www.readbyqxmd.com/read/29555416/phosphorus-kinetics-in-lambs-experimentally-infected-with-trichostrongylus-colubriformis-with-the-use-of-32-p
#11
Tairon Pannunzio Dias E Silva, Carolina Rodriguez Jimenez, Egon Ion Ieda, Adibe Luiz Abdalla, Helder Louvandini
This study was conducted to evaluate the metabolism and phosphorus (P) kinetics in lambs experimentally infected with Trichostrongylus colubriformis using the isotope dilution technique and modelling. Fifteen male lambs (21.1 ± 1.50 kg) of the Santa Inês hair breed of approximately six months old, distributed in the treatments infected (I, n = 8) and control (C, n = 7) were used. The infected lambs received serial infections with 5000 T. colubriformis larvae, three times per week, for 3 weeks (45 000 T...
March 16, 2018: Experimental Parasitology
https://www.readbyqxmd.com/read/29516130/radioembolisation-in-patients-with-hepatocellular-carcinoma-that-have-previously-received-liver-directed-therapies
#12
Bruno Sangro, Carlo Ludovico Maini, Giuseppe Maria Ettorre, Roberto Cianni, Rita Golfieri, Daniele Gasparini, Samer Ezziddin, Philipp M Paprottka, Francesco Fiore, Mark Van Buskirk, Jose Ignacio Bilbao, Rita Salvatori, Emanuela Giampalma, Onelio Geatti, Kai Wilhelm, Ralf Thorsten Hoffmann, Francesco Izzo, Mercedes Iñarrairaegui, Carlo Urigo, Alberta Cappelli, Alessandro Vit, Hojjat Ahmadzadehfar, Tobias Franz Jakobs, Rosa Sciuto, Giuseppe Pizzi, Secondo Lastoria
PURPOSE: Radioembolisation is part of the multimodal treatment of hepatocellular carcinoma (HCC) at specialist liver centres. This study analysed the impact of prior treatment on tolerability and survival following radioembolisation. METHODS: This was a retrospective analysis of 325 consecutive patients with a confirmed diagnosis of HCC, who received radioembolisation with yttrium-90 resin microspheres at eight European centres between September 2003 and December 2009...
March 7, 2018: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29513797/treatment-with-ascorbic-acid-and-%C3%AE-tocopherol-modulates-oxidative-stress-markers-in-the-spinal-cord-of-rats-with-neuropathic-pain
#13
A P K Riffel, M C Q Santos, J A de Souza, T Scheid, A Horst, C Kolberg, A Belló-Klein, W A Partata
Vitamin E (vit. E) and vitamin C (vit. C) are antioxidants that inhibit nociception. The effect of these vitamins on oxidative-stress markers in the spinal cord of rats with chronic constriction injury (CCI) of the sciatic nerve is unknown. This study investigated the effect of intraperitoneal administration of vit. E (15 mg·kg-1·day-1) and vit. C (30 mg·kg-1·day-1), given alone or in combination, on spinal cord oxidative-stress markers in CCI rats. Adult male Wistar rats weighing 200-250 g were divided equally into the following groups: Naive (rats did not undergo surgical manipulation); Sham (rats in which all surgical procedures involved in CCI were used except the ligature), and CCI (rats in which four ligatures were tied loosely around the right common sciatic nerve), which received injections of vitamins or vehicle (saline containing 1% Tween 80) for 3 or 10 days (n=6/each group)...
March 1, 2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/29485643/ionoregulatory-disruption-and-acetylcholinesterase-activity-in-aluminium-toxicity-effects-of-vitamins-c-and-e
#14
R N Ugbaja, T O Olaniyan, O K Afolabi, B O Onunkwor, O A Dosumu, T F Akinhanmi, A Y Tiamiyu, N O Aliyu-Banjo
To investigate the effects of vitamin C and E on electrolyte profile and the activity of acetylcholinesterase (AChE) in Aluminium (Al) chloride exposed rats, thirty-six male rats were used for this study. The animals were randomly grouped into six (n=6); group I (Control) was given normal saline. Group II (Al only) was exposed to 20mg/kg body weight (BW) of Al. Groups III (Vitamin C only) and IV (Vitamin E only) were administered 200mg/kg BW of vitamin C and vitamin E respectively. Groups V (Al + Vit C) and VI (Al + Vit E) were exposed to 20mg/kg Al and were treated with 200mg/kg vitamin C and vitamin E respectively...
December 30, 2017: Nigerian Journal of Physiological Sciences: Official Publication of the Physiological Society of Nigeria
https://www.readbyqxmd.com/read/29473797/formation-and-inhibition-of-n-nitrosodiethanolamine-in-cosmetics-under-ph-temperature-and-fluorescent-ultraviolet-and-visual-light
#15
Duck Soo Lim, Seung Kwang Lim, Min Kook Kim, Yong Chan Kwon, Tae Hyun Roh, Seul Min Choi, Sungpil Yoon, Hyung Sik Kim, Byung-Mu Lee
N-nitrosodiethanolamine (NDELA), a type of nitrosamine, is a possible human carcinogen that may form in cosmetic products. The aim of this study was to examine the formation and inhibition of NDELA through chemical reactions of secondary amines including mono-ethanolamine, di-ethanolamine (DEA), and tri-ethanolamine (TEA), and sodium nitrite (SN) under varying conditions such as pH, temperature, and fluorescent, ultraviolet (UV), and visual light (VIS) using liquid chromatography-mass spectroscopy. In a mixture of TEA and SN under acidic conditions pH 2, residual NDELA concentrations rose significantly under various storage conditions in the following order: 50°C > 40°C > UV (2 W/m2 ) > VIS (4000 lux) > fluorescent light > 25°C > 10°C...
2018: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/29465155/effects-of-physical-activity-on-sclerostin-concentrations
#16
Małgorzata Janik, Michał Stuss, Marta Michalska-Kasiczak, Anna Jegier, Ewa Sewerynek
Osteoporosis is a serious medical and socioeconomic problem of the 21st century. Mechanical load is a key regulator which controls bone formation and remodelling, with participation of osteocytes. Sclerostin is produced and released by mature osteocytes into bone surface, where it inhibits the conveyance of osteoblast proliferation and differentiation activating signals from mesenchymal cells, thus suppressing new bone formation. The goal of the study was an evaluation of the effects of a 12-week physical training programme on the levels of bone turnover markers [Sclerostin, Osteocalcin (OC), C-terminal telopeptide of type I collagen (β-CTX)] in blood serum of women with osteopenia...
February 21, 2018: Endokrynologia Polska
https://www.readbyqxmd.com/read/29458472/polyphasic-data-support-the-splitting-of-aspergillus-candidus-into-two-species-proposal-of-aspergillus-dobrogensis-sp-nov
#17
Vit Hubka, Alena Nováková, Željko Jurjević, František Sklenář, Jens C Frisvad, Jos Houbraken, Maiken C Arendrup, Karin M Jørgensen, João P Z Siqueira, Josepa Gené, Miroslav Kolařík
Aspergillus candidus is a species frequently isolated from stored grain, food, indoor environments, soil and occasionally also from clinical material. Recent bioprospecting studies highlighted the potential of using A. candidus and its relatives in various industrial sectors as a result of their significant production of enzymes and bioactive compounds. A high genetic variability was observed among A. candidus isolates originating from various European countries and the USA, that were mostly isolated from indoor environments, caves and clinical material...
April 2018: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29444180/the-bogazici-face-database-standardized-photographs-of-turkish-faces-with-supporting-materials
#18
S Adil Saribay, Ali Furkan Biten, Erdem Ozan Meral, Pinar Aldan, Vít Třebický, Karel Kleisner
Many sets of human facial photographs produced in Western cultures are available for scientific research. We report here on the development of a face database of Turkish undergraduate student targets. High-resolution standardized photographs were taken and supported by the following materials: (a) basic demographic and appearance-related information, (b) two types of landmark configurations (for Webmorph and geometric morphometrics (GM)), (c) facial width-to-height ratio (fWHR) measurement, (d) information on photography parameters, (e) perceptual norms provided by raters...
2018: PloS One
https://www.readbyqxmd.com/read/29420305/effect-of-slco1b1-gene-polymorphisms-and-vitamin-d-on-statin-induced-myopathy
#19
Baraa Alghalyini, Said El Shamieh, Ali Salami, Sophie Visvikis Siest, Hana M Fakhoury, Rajaa Fakhoury
Background Statin therapy used to lower cholesterol levels results in a substantial reduction in cardiovascular complications. Previous observations in different ethnic populations showed that rs2306283A>G, p.Asn130Asp and rs4149056T>C, p.Val174Ala in solute carrier organic anion transporter 1B1 (SLCO1B1) gene encoding the organic transporter protein may be responsible for statin uptake, thus explaining the majority of statin-associated symptoms. In addition to the genetic component, vitamin D (vit D) deficiency is common in Saudi Arabia and worldwide and may cause muscle dysfunction and ache...
March 28, 2018: Drug Metabolism and Personalized Therapy
https://www.readbyqxmd.com/read/29413958/multifaceted-remodeling-by-vitamin-c-boosts-sensitivity-of-mycobacterium-tuberculosis-subpopulations-to-combination-treatment-by-anti-tubercular-drugs
#20
Kriti Sikri, Priyanka Duggal, Chanchal Kumar, Sakshi Dhingra Batra, Atul Vashist, Ashima Bhaskar, Kritika Tripathi, Tavpritesh Sethi, Amit Singh, Jaya Sivaswami Tyagi
Bacterial dormancy is a major impediment to the eradication of tuberculosis (TB), because currently used drugs primarily target actively replicating bacteria. Therefore, decoding of the critical survival pathways in dormant tubercle bacilli is a research priority to formulate new approaches for killing these bacteria. Employing a network-based gene expression analysis approach, we demonstrate that redox active vitamin C (vit C) triggers a multifaceted and robust adaptation response in Mycobacterium tuberculosis (Mtb) involving ~ 67% of the genome...
May 2018: Redox Biology
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