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"Vitamin c"

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https://www.readbyqxmd.com/read/28454351/the-role-of-quercetin-and-vitamin-c-in-nrf2-dependent-oxidative-stress-production-in-breast-cancer-cells
#1
Zohreh Mostafavi-Pour, Fatemeh Ramezani, Fatemeh Keshavarzi, Nasser Samadi
The balance between the production and elimination of reactive oxygen species (ROS) is essential in determining whether cells survive or undergo apoptosis. Nuclear factor erythroid 2-related factor 2 (Nrf2) may act as a sensor for electrophilic stress, thus regulating the intracellular antioxidant response. The present study investigated the role of vitamin C (VC) and quercetin (Q) in the induction of Nrf2-mediated oxidative stress in cancer cells. An MTT assay was conducted to examine the anti-proliferative effects of VC and Q...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28453932/a-green-route-to-a-na2fepo4f-based-cathode-for-sodium-ion-batteries-of-high-rate-and-long-cycling-life
#2
Xiang Deng, Wenxiang Shi, Jaka Sunarso, Meilin Liu, Zongping Shao
Sodium-ion batteries (SIBs) are considered one of the most promising alternatives for large-scale energy storage due largely to the abundance and low cost of sodium. However, the lack of high-performance cathode materials at low cost represents a major obstacle towards broad commercialization of SIB technology. In this work, we report a green route strategy that allows cost-effective fabricaiton of carbon-coated Na2FePO4F cathode for SIBs. By using vitamin C as a green organic carbon source and environment-friendly water-based polyacrylic latex as the binder, we have demonstrated that the Na2FePO4F phase in the as-derived Na2FePO4F/C electrode shows a high reversible capacity of 117 mAh g-1 at a cycling rate of 0...
April 28, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28448868/protective-effects-of-teucrium-polium-aqueous-extract-and-ascorbic-acid-on-hematological-and-some-biochemical-parameters-against-carbon-tetrachloride-ccl4-induced-toxicity-in-rats
#3
Fatma Rahmouni, Latifa Hamdaoui, Riadh Badraoui, Tarek Rebai
Herbal drugs play a crucial function to protect organisms from the toxic effect of some compounds. The present study was designed to evaluate the protective effects of Teucrium Polium (TP) aqueous extract and vitamin C (Vit C) against carbon tetrachloride (CCl4) which induced toxicity in rats. Male albino Wistar rats were divided into six groups: group I was used as controls, group II received CCl4 in olive oil (0.5ml/kg) by gavage, and group III received CCl4 in olive oil (0.5ml/kg) by gavage after three days of receiving TP (5g/l), orally, for seven days; Group IV received TP (5g/l) alone, orally, for seven days, Group V received CCl4 in olive oil (0...
April 24, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28448089/bone-degeneration-and-its-recovery-in-smp30-gnl-knockout-mice
#4
K Nishijima, T Ohno, A Amano, Y Kishimoto, Y Kondo, A Ishigami, S Tanaka
Senescence marker protein-30 (SMP30) decreases androgen-independently with aging and is a lactone-hydrolyzing enzyme gluconolactonase (GNL) that is involved in vitamin C biosynthesis. In the present study, bone properties of SMP30/GNL knockout (KO) mice with deficiency in vitamin C synthesis were investigated to reveal the effects of SMP30/GNL and exogenous vitamin C supplementation on bone formation. Mineral content (BMC) and mineral density (BMD) of the mandible and femur of SMP30/GNL KO and wild-type mice at 2 and 3 months of age with or without vitamin C supplementation were measured by dual-energy X-ray absorptiometry...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/28448083/are-dietary-supplements-and-nutraceuticals-effective-for-musculoskeletal-health-and-cognitive-function-a-scoping-review
#5
G Iolascon, R Gimigliano, M Bianco, A De Sire, A Moretti, A Giusti, N Malavolta, S Migliaccio, A Migliore, N Napoli, P Piscitelli, G Resmini, U Tarantino, F Gimigliano
OBJECTIVE: The aim of our scoping review was to summarize the state of the art regarding micronutrients in order to identify which of them might effectively improve health status in the areas typically impaired in older people: bone, skeletal muscle, and cognitive function. DESIGN: Scoping review. METHODS: The Italian Study Group on Healthy Aging by Nutraceuticals and Dietary Supplements (HANDS) performed this scoping review, based on the following steps: doing a list of micronutrients related with musculoskeletal or cognitive functions, included in dietary supplements and nutraceuticals commercialized in Italy; planning a research on PubMed, according to an evidence-based approach, in order to the most relevant positive study for each micronutrient into each of the three areas involved (bone, skeletal muscle and cognitive function); identifying the micronutrients effective in maintaining or achieving an adequate health status in older people, specifying the effective and safe daily doses, according to the selected studies...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/28440340/comparative-genomics-and-metabolomics-analyses-of-the-adaptation-mechanism-in-ketogulonicigenium-vulgare-bacillus-thuringiensis-consortium
#6
Nan Jia, Ming-Zhu Ding, Yang Zou, Feng Gao, Ying-Jin Yuan
Adaptive evolution by serial subcultivation of co-cultured Bacillus thuringiensis and Ketogulonicigenium vulgare significantly enhanced the productivity of 2-keto-L-gulonic acid in two-step vitamin C production. The adaptation mechanism in K. vulgare-B. thuringiensis consortium was investigated in this study based on comparative genomics and metabolomics studies. It was found that the growth, anti-oxidation, transcription and regulation were significantly enhanced in the adapted consortium. The mutation of the genes, which encode amidohydrolase in adapted K...
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28438861/vitamin-c-improves-therapeutic-effects-of-adipose-derived-stem-cell-transplantation-in-mouse-tendonitis-model
#7
Kyung-Ku Kang, Eun-Joo Lee, Youg-Deuk Kim, Myung-Jin Chung, Jun-Young Kim, Shin-Yoon Kim, Su-Kyeung Hwang, Kyu-Shik Jeong
BACKGROUND/AIM: We hypothesized that combined therapy using adipose-derived stem cells (ASCs) and vitamin C might improve tendon regeneration in tendonitis. To determine combined effects of ASC transplantation with vitamin C, we used senescence marker protein 30 (SMP30)-knockout (KO) mice that cannot biosynthesize vitamin C by themselves. MATERIALS AND METHODS: SMP30-KO were divided into four groups: Control, vitamin C, ASCs, and vitamin C plus ASCs. Tendonitis was induced in the achilles tendons via injection of collagenase type I...
May 2017: In Vivo
https://www.readbyqxmd.com/read/28438052/successful-treatment-of-no-induced-methemoglobinemia-with-low-dose-vitamin-c
#8
Eun Jung Park, Minjeong Lee, Young-Gi Min
No abstract text is available yet for this article.
April 25, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28434760/omega-3-fatty-acid-supplementation-is-associated-with-oxidative-stress-and-dyslipidemia-but-does-not-contribute-to-better-lipid-and-oxidative-status-on-hemodialysis-patients
#9
Andresa Marques de Mattos, José Abrão Cardeal da Costa, Alceu Afonso Jordão Júnior, Paula Garcia Chiarello
OBJECTIVE: The aim of the study was to explore the effects of n-3 polyunsaturated fatty acids (PUFA) supplementation in physiological doses on oxidative stress (OS) and dyslipidemia in patients on hemodialysis (HD). DESIGN AND METHODS: Randomized, double-blind, controlled, experimental trial. A total of 88 HD patients ≥18 years old and on HD for at least 6 months. A total of 43 patients received 1.28 g/day of n-3 PUFA, and 45 other patients received soybean oil for 12 weeks...
April 20, 2017: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/28429919/home-availability-of-fruit-and-vegetables-and-obesogenic-foods-as-an-indicator-of-nutrient-intake-in-50-year-olds-from-canterbury-new-zealand
#10
Emily Grant, Richard Blair Gearry, Renée Wilson, John Pearson, Paula Marie Louise Skidmore
BACKGROUND AND OBJECTIVES: The home food environment is known to influence children's diet and selected health outcomes. However, similar research in adults is scarce. The home is arguably the most important food environment for New Zealand adults as the majority of food consumed is stored and prepared in the home. Therefore we investigated relationships between home food availability and nutrient intake in 50 year olds from Canterbury, New Zealand. METHODS AND STUDY DESIGN: A cross-sectional study where participants completed a home food inventory and a four-day estimated food diary...
May 2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28429910/dietary-patterns-and-their-associations-with-energy-nutrient-intake-and-socioeconomic-factors-in-rural-lactating-mothers-in-tibet
#11
Zhenjie Wang, Shaonong Dang, Yuan Xing, Qiang Li, Hong Yan
BACKGROUND AND OBJECTIVES: There is very limited published data on Tibetan dietary patterns and its association with nutrient intakes and socioeconomic factors. The aim of this study was to identify and describe the dietary patterns and the associations with nutrient intakes in rural Tibetan pregnant, lactating mothers. METHODS AND STUDY DESIGN: Dietary patterns and nutrient intakes were identified via a food frequency questionnaire (FFQ). We identified dietary patterns using principle component analysis (PCA) of intakes of 17 food groups and specific Tibetan foods...
May 2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28429318/biochemistry-and-physiology-of-vitamins-in-euglena
#12
Fumio Watanabe, Kazuya Yoshimura, Shigeru Shigeoka
Euglena gracilis Z requires vitamins B1 and B12 for growth. It takes up and accumulates large amounts of these exogenous vitamins through energy-dependent active transport systems. Except for these essential vitamins, E. gracilis Z has the ability to synthesize all human vitamins. Euglena synthesizes high levels of antioxidant vitamins such as vitamins C and E, and, thus, are used as nutritional supplements for humans and domestic animals. Methods to effectively produce vitamins in Euglena have been investigated...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28428692/the-appraisement-of-antioxidant-and-oxidant-status-in-women-undergoing-surgical-menopause
#13
Avneet Kaur, Pooja Negi, Veena Sarna, Rajendra Prasad, Bir S Chavan, Anita Malhotra, Gurjit Kaur
The present study was undertaken to study the impact of surgical menopause on oxidant and antioxidant status in relation to estrogen levels after 3 months of surgery. Total 130 women who had undergone total hysterectomy (TH) with or without bilateral salpingo-oophorectomy (BSO) were included in this study. The oxidant status was assessed by measuring plasma levels of malondialdehyde and antioxidant status was assessed by measuring superoxide dismutase, catalase, glutathione, glutathione peroxidase, estrogen, and Vitamin A, E and C levels...
June 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28428691/relationship-between-xanthine-oxidase-ischemia-modified-albumin-nitric-oxide-with-antioxidants-in-non-pregnants-pre-and-post-delivery-of-normal-pregnants-and-preeclampsia
#14
Vanishree Bambrana, C D Dayanand, Pushpa Kotur
Preeclampsia is a multisystem disorder involves altered homeostasis of oxidants-antioxidants, inflammatory process and endothelial dysfunction. The present study aim was to determine the levels of oxidative stress parameters (malondialdehyde, protein carbonyl, ischemia modified albumin and xanthine oxidase), nutrient antioxidants (vitamin C and vitamin E), enzyme antioxidants (catalase, superoxide dismutase, glutathione peroxidase glutathione reductase), total antioxidant status (TAS) and its association with nitric oxide...
June 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28426168/walking-a-fine-line-with-sucrose-phosphorylase-efficient-single-step-biocatalytic-production-of-l-ascorbic-acid-2-glucoside-from-sucrose
#15
Rama Krishna Gudiminchi, Bernd Nidetzky
The 2-O-α-D-glucoside of L-ascorbic acid (AA-2G) is a highly stabilized form of vitamin C, with important applications in cosmetics, foods and pharmaceuticals. Sucrose would be an ideal substrate for AA-2G synthesis, but it cannot be used lacking a suitable transglycosidase. We show that in a narrow pH window with sharp optimum at pH 5.2, select sucrose phosphorylases catalyzed 2-O-α-glucosylation of L-ascorbic acid from sucrose with high efficiency and perfect site-selectivity. Optimized synthesis with the enzyme from Bifidobacterium longum at 40°C gave a concentrated product solution (155 g/L; 460 mM) from which pure AA-2G was recovered in ∼50% overall yield, so providing the basis for an advanced production process...
April 20, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28425467/hyperpolarized-13-c-spectroscopic-evaluation-of-oxidative-stress-in-a-rodent-model-of-steatohepatitis
#16
David M Wilson, Valentina Di Gialleonardo, Zhen J Wang, Valerie Carroll, Cornelius Von Morze, Andrew Taylor, Victor Sai, Mark VanCriekinge, Robert Bok, Michael A Ohliger, Kayvan R Keshari
Nonalcoholic fatty liver disease (NAFLD) has become highly prevalent, now considered the most common liver disease in the western world. Approximately one-third of patients with NASH develop non-alchoholic steatohepatitis (NASH), histologically defined by lobular and portal inflammation, and accompanied by marked oxidative stress. Patients with NASH are at increased risk for cirrhosis and hepatocellular carcinoma, and diagnosis currently requires invasive biopsy. In animal models of NASH, particularly the methionine-choline deficient (MCD) model, profound changes are seen in redox enzymes and key intracellular antioxidants...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28422514/vitamin-c-prevents-offspring-dna-methylation-changes-associated-with-maternal-smoking-in-pregnancy
#17
Lyndsey E Shorey-Kendrick, Cindy T McEvoy, Betsy Ferguson, Julja Burchard, Byung S Park, Lina Gao, Brittany H Vuylsteke, Kristin F Milner, Cynthia D Morris, Eliot R Spindel
BACKGROUND: Infants whose mothers smoked during pregnancy demonstrate lifelong decreases in pulmonary function. DNA methylation changes associated with maternal smoking during pregnancy have been described in placenta and cord blood at delivery, in fetal lung, and in buccal epithelium and blood during childhood. We recently demonstrated in a randomized clinical trial (NCT00632476) that vitamin C supplementation to pregnant smokers can lessen the impact of maternal smoking on offspring pulmonary function and decrease the incidence of wheeze at one year of age...
April 19, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28420921/potential-of-ascorbic-acid-as-antioxidant-on-chemotherapeutic-agent-induced-change-in-morphology-of-testes
#18
Aisha Abdul Haq, Soofia Nigar, Dureshewar Rehman
OBJECTIVE: To demonstrate the morphological changes in number of seminiferous tubules that are produced by anthracycline doxorubicin on the testes of mice. METHODS: This experimental study was conducted at Dow University of Health Sciences, Karachi, from March to August 2012, and comprised male mice aged up to five weeks. The mice were separated into 3 equal groups: A, B and C. Each animal was treated with normal saline 1ml intraperitoneal in group A, doxorubicin alone in group B and doxorubicin + vitamin C in group C...
April 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28420486/vitamins-c-and-d
#19
EDITORIAL
Richard I Shader
No abstract text is available yet for this article.
April 15, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28420205/do-chinese-children-get-enough-micronutrients
#20
Huijun Wang, Dantong Wang, Yifei Ouyang, Feifei Huang, Gangqiang Ding, Bing Zhang
The aim of this study was to examine usual daily micronutrient intake of Chinese children based on data from the 2011 China Health and Nutrition Survey. We analyzed data from 4 to 17-year-old participants, who provided dietary data on three consecutive days combined with the household weighing method in 2011. Usual daily intake of each nutrient was estimated using a mixed effects model based on the China Food Composition published in 2009. The means, medians and percentages below Estimated Average Requirements (EAR) were reported for selected micronutrients, including calcium, sodium, potassium, iron, zinc, selenium, vitamin A, thiamine, riboflavin and vitamin C...
April 18, 2017: Nutrients
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