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Intravenous vitamin c

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https://www.readbyqxmd.com/read/27904265/a-study-of-intravenous-administration-of-vitamin-c-in-the-treatment-of-acute-herpetic-pain-and-postherpetic-neuralgia
#1
Min Sung Kim, Dong Jin Kim, Chan Ho Na, Bong Seok Shin
BACKGROUND: Although there are several available management strategies for treatment of both acute pain of herpes zoster (HZ) and postherpetic neuralgia (PHN), it is difficult to treat them adequately. OBJECTIVE: The aim of this study was to evaluate the efficacy of intravenously administrated vitamin C on acute pain and its preventive effects on PHN in patients with HZ. METHODS: Between September 2011 and May 2013 eighty-seven patients who were admitted for HZ were assessed according to age, sex, underlying diseases, duration of pain and skin lesion, dermatomal distribution, and PHN...
December 2016: Annals of Dermatology
https://www.readbyqxmd.com/read/27900959/effect-of-vitamin-c-supplementation-on-lipid-profile-serum-uric-acid-and-ascorbic-acid-in-children-on-hemodialysis
#2
Ghada Mohamed El Mashad, Hanan M ElSayed, Nahla A Nosair
Children with end-stage renal disease (ESRD) suffer from dyslipidemia and hyperuricemia that might play a causal role in the progression of cardiovascular disease (CVD). The aim of the study is to assess the effects of Vitamin C supplementation on uric acid, ascorbic acid, and serum lipid levels among children on hemodialysis (HD). This prospective study was conducted in the pediatric nephrology unit at Menoufia University Hospital. The study included a total of 60 children with ESRD on maintenance HD therapy...
November 2016: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/27898857/vitamin-e-plasma-kinetics-in-swine-show-low-bioavailability-and-short-half-life-of-%C3%AE-tocopheryl-acetate
#3
T A T G van Kempen, M H Reijersen, C de Bruijn, S De Smet, J Michiels, M G Traber, C Lauridsen
Vitamin E is important for animal production because of its effects on health and product quality, but the amount and form required remains controversial. Our objective was to quantify the absolute bioavailability of oral -α-tocopheryl acetate (α-TAc) in swine (22 ± 1 kg and 8 wk old, fitted with jugular catheters) adapted to a diet supplemented with 75 mg/kg -α-TAc; 75 mg/kg was chosen because this level represents the nonweighted average inclusion level in piglet diets across Western key swine-producing countries...
October 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27891260/intravenous-vitamin-c-administered-as-adjunctive-therapy-for-recurrent-acute-respiratory-distress-syndrome
#4
Amit Bharara, Catherine Grossman, Daniel Grinnan, Aamer Syed, Bernard Fisher, Christine DeWilde, Ramesh Natarajan, Alpha A Berry Fowler
This case report summarizes the first use of intravenous vitamin C employed as an adjunctive interventional agent in the therapy of recurrent acute respiratory distress syndrome (ARDS). The two episodes of ARDS occurred in a young female patient with Cronkhite-Canada syndrome, a rare, sporadically occurring, noninherited disorder that is characterized by extensive gastrointestinal polyposis and malabsorption. Prior to the episodes of sepsis, the patient was receiving nutrition via chronic hyperalimentation administered through a long-standing central venous catheter...
2016: Case Reports in Critical Care
https://www.readbyqxmd.com/read/27882116/in-vitro-and-in-vivo-assessment-of-high-dose-vitamin-c-against-murine-tumors
#5
Guoping Wang, Tao Yin, Yongsheng Wang
Vitamin C is widely used in clinical settings and is well known for its safety. Previous studies have shown the efficacy of intravenous vitamin C; however, intratumoral delivery of vitamin C has yet to be attempted. In the present study, the biological effects of high-dose vitamin C on tumor cells were investigated in vitro by using the MTT assay and flow cytometry. When administered in vitro, high-dose vitamin C inhibited the proliferation of murine colon and breast cancer cells, and induced tumor cell apoptosis...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27872555/effect-of-intravenous-high-dose-vitamin-c-on-postoperative-pain-and-morphine-use-after-laparoscopic-colectomy-a-randomized-controlled-trial
#6
Younghoon Jeon, Jun Seok Park, Suyoung Moon, Jinseok Yeo
Background and Objective. Vitamin C has antioxidant, neuroprotective, and neuromodulating effects. Recently, it showed antinociceptive effect as a result of the antioxidant properties. Therefore, we designed this study to assess the effect of intravenous vitamin C on opiate consumption and pain in patients undergoing laparoscopic colectomy. Methods. A total of 100 patients were enrolled and allocated to receive 50 mg/kg vitamin C or placebo by intravenous infusion immediately after induction of anesthesia...
2016: Pain Research & Management: the Journal of the Canadian Pain Society
https://www.readbyqxmd.com/read/27862983/denosumab-prevention-and-management-of-hypocalcemia-osteonecrosis-of-the-jaw-and-atypical-fractures
#7
REVIEW
Kenneth Pittman, Yoland C Antill, Amanda Goldrick, Jeffrey Goh, Richard H de Boer
Denosumab, a bone-modifying agent, reduces the risk of skeletal-related events in patients with bone metastases from solid tumors and is generally well tolerated. However, hypocalcemia, osteonecrosis of the jaw (ONJ) and atypical fracture are potential and important toxicities of denosumab therapy that require attention. In pivotal phase III trials in patients with bone metastases from solid tumors, the incidence of hypocalcemia was 9.6% in denosumab-treated patients, with most events being asymptomatic, grade 2 and resolving by week 4...
November 10, 2016: Asia-Pacific Journal of Clinical Oncology
https://www.readbyqxmd.com/read/27858373/vitamin-b12-administration-by-subcutaneous-catheter-device-in-a-cobalamin-a-cbla-patient
#8
E Maines, G Morandi, G Gugelmo, F Ion-Popa, N Campostrini, A Pasini, M Vincenzi, F Teofoli, M Camilot, A Bordugo
Cobalamin A deficiency (cblA) is an inherited disorder of intracellular cobalamin metabolism, caused by impaired 5'-deoxy-adenosylcobalamin (AdoCbl) synthesis. Hydroxocobalamin (OHCbl) is the cornerstone of cblA treatment because vitamin B12 may completely restore AdoCbl deficiency. Parenteral administration, intravenous, subcutaneous or intramuscular, is generally required to achieve effect. Daily injections represent a problem for the parents and the caregivers, and this may lead to poor compliance and scarce adherence to the long-term treatment...
November 18, 2016: JIMD Reports
https://www.readbyqxmd.com/read/27810779/intravenous-transfusion-of-endothelial-progenitor-cells-that-overexpress-vitamin-d-receptor-inhibits-atherosclerosis-in-apoe-deficient-mice
#9
Wei Xiang, Zhi-Lan Hu, Xiao-Jie He, Xi-Qiang Dang
Endothelial progenitor cells (EPCs) are widely used for angiogenic therapies, as well as predictive biomarkers to assess cardiovascular disease risk. However, it is unknown that whether overexpressed vitamin D receptor (VDR) in EPCs could help EPCs counteracting atherosclerotic risks. Here, we study intravenous transplantation of genetically modified EPCs over-expressing VDR in regulating endothelial dysfunction and spontaneously arising atherosclerotic plaques of ApoE-deficient mice. Firstly, we found that over-expression of VDR in EPCs could reduce atherosclerotic plaque formation in transplanted ApoE-/- mice...
October 27, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27798933/a-pediatric-patient-with-a-cyp24a1-mutation-four-years-of-clinical-biochemical-and-imaging-follow-up
#10
Diana-Alexandra Ertl, Adalbert Raimann, Dagmar Csaicsich, Janina M Patsch, Franco Laccone, Gabriele Haeusler
BACKGROUND: A female infant was admitted to hospital due to failure to thrive. She presented hypercalcemia (4.09 mmol/L, normal range: 2.2-2.65 mmol/L), high 25-hydroxyvitamin D (283 nmol/L, normal range: 75-250 nmol/L), 1,25-dihydroxyvitamin D in the upper normal range, and low parathyroid hormone. Vitamin D intoxication was suspected. The patient had received routine rickets prophylaxis. METHODS: Williams-Beuren syndrome was genetically excluded. Sequencing of CYP24A1 showed 2 mutations: c...
November 1, 2016: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/27773919/high-dose-intravenous-vitamin-c-treatment-of-a-child-with-neurofibromatosis-type-1-and-optic-pathway-glioma-a-case-report
#11
Nina Mikirova, Ronald Hunnunghake, Ruth C Scimeca, Charles Chinshaw, Faryal Ali, Chris Brannon, Neil Riordan
BACKGROUND In neurofibromatosis type 1 (NF1) disease, the loss of the tumor suppressor function of the neurofibromin gene leads to proliferation of neural tumors. In children, the most frequently identified tumor is the optic pathway glioma. CASE REPORT We describe the case of a 5-year-old child who was diagnosed with NF1 and optic pathway tumor onset at the age of 14 months. Because of the tumor progression, chemotherapy with carboplatin and vincristine was prescribed at this early age and continued for one year...
October 24, 2016: American Journal of Case Reports
https://www.readbyqxmd.com/read/27731292/treatments-for-hyperemesis-gravidarum-and-nausea-and-vomiting-in-pregnancy-a-systematic-review-and-economic-assessment
#12
Amy O'Donnell, Catherine McParlin, Stephen C Robson, Fiona Beyer, Eoin Moloney, Andrew Bryant, Jennifer Bradley, Colin Muirhead, Catherine Nelson-Piercy, Dorothy Newbury-Birch, Justine Norman, Emma Simpson, Brian Swallow, Laura Yates, Luke Vale
BACKGROUND: Nausea and vomiting in pregnancy (NVP) affects up to 85% of all women during pregnancy, but for the majority self-management suffices. For the remainder, symptoms are more severe and the most severe form of NVP - hyperemesis gravidarum (HG) - affects 0.3-1.0% of pregnant women. There is no widely accepted point at which NVP becomes HG. OBJECTIVES: This study aimed to determine the relative clinical effectiveness and cost-effectiveness of treatments for NVP and HG...
October 2016: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/27662240/american-association-of-clinical-endocrinologists-and-american-college-of-endocrinology-clinical-practice-guidelines-for-the-diagnosis-and-treatment-of-postmenopausal-osteoporosis-2016
#13
Pauline M Camacho, Steven M Petak, Neil Binkley, Bart L Clarke, Steven T Harris, Daniel L Hurley, Michael Kleerekoper, E Michael Lewiecki, Paul D Miller, Harmeet S Narula, Rachel Pessah-Pollack, Vin Tangpricha, Sunil J Wimalawansa, Nelson B Watts
AACE = American Association of Clinical Endocrinologists AFF = atypical femur fracture ASBMR = American Society for Bone and Mineral Research BEL = best evidence level BMD = bone mineral density BTM = bone turnover marker CBC = complete blood count CI = confidence interval DXA = dual-energy X-ray absorptiometry EL = evidence level FDA = U.S. Food and Drug Administration FLEX = Fracture Intervention Trial (FIT) Long-term Extension FRAX(®) = Fracture Risk Assessment Tool GFR = glomerular filtration rate GI = gastrointestinal HORIZON = Health Outcomes and Reduced Incidence with Zoledronic Acid Once Yearly IOF = International Osteoporosis Foundation ISCD = International Society for Clinical Densitometry IU = international units IV = intravenous LSC = least significant change NBHA = National Bone Health Alliance NOF = National Osteoporosis Foundation 25(OH)D = 25-hydroxy vitamin D ONJ = osteonecrosis of the jaw PINP = serum carboxy-terminal propeptide of type I collagen PTH = parathyroid hormone R = recommendation RANK = receptor activator of nuclear factor kappa-B RANKL = receptor activator of nuclear factor kappa-B ligand RCT = randomized controlled trial RR = relative risk S-CTX = serum C-terminal telopeptide SQ = subcutaneous VFA = vertebral fracture assessment WHO = World Health Organization...
September 2, 2016: Endocrine Practice
https://www.readbyqxmd.com/read/27643923/american-association-of-clinical-endocrinologists-and-american-college-of-endocrinology-clinical-practice-guidelines-for-the-diagnosis-and-treatment-of-postmenopausal-osteoporosis-2016-executive-summary
#14
Pauline M Camacho, Steven M Petak, Neil Binkley, Bart L Clarke, Steven T Harris, Daniel L Hurley, Michael Kleerekoper, E Michael Lewiecki, Paul D Miller, Harmeet S Narula, Rachel Pessah-Pollack, Vin Tangpricha, Sunil J Wimalawansa, Nelson B Watts
AACE = American Association of Clinical Endocrinologists AFF = atypical femur fracture ASBMR = American Society for Bone and Mineral Research BEL = best evidence level BMD = bone mineral density BTM = bone turnover marker CBC = complete blood count CI = confidence interval DXA = dual-energy X-ray absorptiometry EL = evidence level FDA = U.S. Food and Drug Administration FLEX = Fracture Intervention Trial (FIT) Long-term Extension FRAX(®) = Fracture Risk Assessment Tool GFR = glomerular filtration rate GI = gastrointestinal HORIZON = Health Outcomes and Reduced Incidence with Zoledronic Acid Once Yearly IOF = International Osteoporosis Foundation ISCD = International Society for Clinical Densitometry IU = international units IV = intravenous LSC = least significant change NBHA = National Bone Health Alliance NOF = National Osteoporosis Foundation 25(OH)D = 25-hydroxy vitamin D ONJ = osteonecrosis of the jaw PINP = serum carboxy-terminal propeptide of type I collagen PTH = parathyroid hormone R = recommendation RANK = receptor activator of nuclear factor kappa-B RANKL = receptor activator of nuclear factor kappa-B ligand RCT = randomized controlled trial RR = relative risk S-CTX = serum C-terminal telopeptide SQ = subcutaneous VFA = vertebral fracture assessment WHO = World Health Organization...
September 2016: Endocrine Practice
https://www.readbyqxmd.com/read/27622522/calciphylaxis-and-martorell-hypertensive-ischemic-leg-ulcer-same-pattern-one-pathophysiology
#15
Jürg Hafner
This review presents a closer look at four diseases which are probably closely related to one another pathophysiologically: (a) calciphylaxis (distal pattern); (b) calciphylaxis (proximal pattern); (c) Martorell hypertensive ischemic leg ulcer; (d) calciphylaxis with normal renal and parathyroid function (synonym: eutrophication). The four diseases have largely the same risk factors: (1) arterial hypertension, (2) diabetes mellitus (types 1 and 2), (3) secondary or tertiary hyperparathyroidism (in end-stage kidney disease) and (4) oral anticoagulation with vitamin K antagonists...
September 14, 2016: Dermatology: International Journal for Clinical and Investigative Dermatology
https://www.readbyqxmd.com/read/27619554/plasma-vitamin-c-levels-in-esrd-patients-and-occurrence-of-hypochromic-erythrocytes
#16
Eric Seibert, Anja Richter, Martin K Kuhlmann, Suxin Wang, Nathan W Levin, Peter Kotanko, Garry J Handelman
Introduction The achievement of erythropoiesis in hemodialysis (HD) patients is typically managed with erythropoiesis-stimulating-agents (ESA's) and intravenous iron (IV-iron). Using this treatment strategy, HD patients frequently show an elevated fraction of red blood cells (RBC) with hemoglobin (Hb) content per cell that is below the normal range, called hypochromic RBC. The low Hb content per RBC is the result of the clinical challenge of providing sufficient iron content to the bone marrow during erythropoiesis...
September 12, 2016: Hemodialysis International
https://www.readbyqxmd.com/read/27567539/pharmacokinetic-and-anti-cancer-properties-of-high-dose-ascorbate-in-solid-tumours-of-ascorbate-dependent-mice
#17
Elizabeth J Campbell, Margreet C M Vissers, Christina Wohlrab, Kevin O Hicks, R Matthew Strother, Stephanie M Bozonet, Bridget A Robinson, Gabi U Dachs
Despite recent evidence for an anti-tumour role for high-dose ascorbate, potential mechanisms of action are still unclear. At mM concentrations that are achieved with high-dose intravenous administration, autoxidation of ascorbate can generate cytotoxic levels of H2O2. Ascorbate is also a required co-factor for the hydroxylases that suppress the transcription factor hypoxia-inducible factor (HIF-1). HIF-1 supports an aggressive tumour phenotype and is associated with poor prognosis, and previous studies have shown that optimizing intracellular ascorbate levels down-regulates HIF-1 activation...
August 24, 2016: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/27531623/development-of-novel-hdl-mimicking-%C3%AE-tocopherol-coated-nanoparticles-to-encapsulate-nerve-growth-factor-and-evaluation-of-biodistribution
#18
Priyanka Prathipati, Jing Zhu, Xiaowei Dong
Nerve Growth Factor (NGF) is one of the members of the neurotrophin family with multifaceted functions. However, clinic application of NGF is hurdled by the challenge on formulation development. The objective of this study was to develop novel high-density lipoproteins (HDL)-mimicking nanoparticles (NPs) coated with α-tocopherol to incorporate NGF by a self-assembly approach. The NPs were prepared by an optimized self-assembly method that is simple and scalable. The composition of HDL-mimicking NPs was optimized...
August 12, 2016: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/27507076/a-7-day-intravenous-toxicity-study-and-neurotoxicity-assessment-of-pyridorin-in-sprague-dawley-rats
#19
D W Sullivan, R C Peterson, C V Mujer, S C Gad
Pyridorin(®), a naturally occurring metabolite of vitamin B6 that inhibits and scavenges reactive oxygen species, is being developed as a potential therapeutic for acute kidney injury. An investigational new drug application (IND) was opened for Pyridorin in support of its ongoing oral drug clinical development program. Currently, a Pyridorin intravenous (IV) formulation is being developed for use in surgical patients. To support the IND for Pyridorin, a full battery of nonclinical Good Laboratory Practice compliant studies was performed with no neurological or behavioral signs of toxicity seen following oral or IV administration of pyridoxine dihydrochloride (the active ingredient in Pyridorin)...
August 9, 2016: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/27434393/pharmacodynamic-effects-of-sucroferric-oxyhydroxide-and-sevelamer-carbonate-on-vitamin-d-receptor-agonist-bioactivity-in-dialysis-patients
#20
Stuart M Sprague, Adrian C Covic, Jürgen Floege, Markus Ketteler, Jaco Botha, Edward M Chong, Anjay Rastogi
BACKGROUND: Many patients with chronic kidney disease are prescribed vitamin D receptor agonists (VDRAs) for the management of secondary hyperparathyroidism. Oral phosphate binders may interact with, and potentially reduce the therapeutic activity of, oral VDRAs. This post hoc analysis of a Phase 3 study evaluated the pharmacodynamic effects of the iron-based phosphate binder sucroferric oxyhydroxide (SFOH) and sevelamer (SEV) carbonate on VDRA activity in dialysis patients. METHODS: One thousand and fifty nine patients were randomized to SFOH 1...
2016: American Journal of Nephrology
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