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https://www.readbyqxmd.com/read/28745612/pemetrexed-induced-pseudocellulitis-a-rare-cutaneous-adverse-reaction-to-multi-targeted-antifolate-therapy
#1
U Wollina, G Hansel, E Zschuppe, G Tchernev
Pemetrexed is a multi-targeted folate antagonists approved for non-small cell lung cancer and other malignancies. Adverse cutaneous reactions have been reported in up to 1/3 of patients treated. A rare cutaneous adverse reaction is pseudocellulitis. We report about a 62-year-old male patient treated with a combination of cisplatin and pemetrexed for non-small cell lung cancer stage IV who developed about 4 months after initiation of treatment painful, non-febrile erythematous lesions on feet and lower legs...
June 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28742385/sequential-therapy-of-breast-cancer-cell-lines-with-vitamin-c-and-quercetin-improves-the-efficacy-of-chemotherapeutic-drugs
#2
Fatemeh Ramezani, Nasser Samadi, Zohreh Mostafavi-Pour
OBJECTIVE: Prevention by antioxidant agents including vitamin C (VC) and quercetin (QU), which are nontoxic, cost effective, and physiologically bioavailable, is a promising approach in breast cancer handling. The aim of this work is to investigate the influence of VC+QU on cytotoxicity profile of doxorubicin (DOX) plus paclitaxel (PAC) in breast cancer cells. METHODS: The effect of each drug on its own or in combination was evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay...
July 25, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28736298/calcitriol-mediated-reduction-in-ifn-%C3%AE-output-in-t-cell-large-granular-lymphocytic-leukemia-requires-vitamin-d-receptor-upregulation
#3
M Paige Kulling, C Kristine Olson, L Thomas Olson, E Cait Hamele, N Kathryn Carter, J David Feith, P Thomas Loughran
Constitutively activated STAT1 and elevated IFN-γ are both characteristic of T cell large granular lymphocytic leukemia (T-LGLL), a rare incurable leukemia with clonal expansion of cytotoxic T cells due to defective apoptosis. Interferon gamma (IFN-γ) is an inflammatory cytokine that correlates with worse progression and symptomology in multiple autoimmune diseases and cancers. In canonical IFN-γ-STAT1 signaling, IFN-γ activates STAT1, a transcription factor, via phosphorylation of tyrosine residue 701 (p-STAT1)...
July 20, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28726660/pemetrexed-induced-pseudocellulitis-a-rare-cutaneous-adverse-reaction-to-multi-targeted-antifolate-therapy
#4
U Hansel G Zschuppe E Tchernev G Wollina
Pemetrexed is a multi-targeted folate antagonists approved for non-small cell lung cancer and other malignancies. Adverse cutaneous reactions have been reported in up to 1/3 of patients treated. A rare cutaneous adverse reaction is pseudocellulitis. We report about a 62-year-old male patient treated with a combination of cisplatin and pemetrexed for non-small cell lung cancer stage IV who developed about 4 months after initiation of treatment painful, non-febrile erythematous lesions on feet and lower legs...
June 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28723378/dietary-antioxidants-and-longitudinal-changes-in-lower-urinary-tract-symptoms-in-elderly-men-the-osteoporotic-fractures-in-men-study
#5
Kathleen F Holton, Lynn M Marshall, Jackilen Shannon, Jodi A Lapidus, James M Shikany, Douglas C Bauer, Elizabeth Barrett-Connor, J Kellogg Parsons
BACKGROUND: Antioxidants can potentially alter the progression of lower urinary tract symptoms (LUTS) through anti-inflammatory mechanisms. OBJECTIVE: To determine if dietary antioxidants are associated with reduced likelihood of LUTS progression or increased likelihood of LUTS remission in untreated elderly men. DESIGN, SETTING, AND PARTICIPANTS: A prospective cohort study of 1670 US men aged 65-100 yr. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Baseline variables included the American Urological Association Symptom Index, dietary intake assessed via a 69-item Block food frequency questionnaire (FFQ), demographics, lifestyle characteristics, quality of life (SF-12), and medication use...
August 2016: European Urology Focus
https://www.readbyqxmd.com/read/28713563/recent-advances-in-the-treatment-of-venous-thromboembolism-in-the-era-of-the-direct-oral-anticoagulants
#6
REVIEW
Jeffrey I Weitz, Iqbal H Jaffer, James C Fredenburgh
The direct oral anticoagulants (DOACs) have now supplanted vitamin K antagonists (VKAs) for the treatment of venous thromboembolism (VTE). The DOACs include dabigatran, which inhibits thrombin, and rivaroxaban, apixaban, and edoxaban, which inhibit factor Xa. The DOACs are as effective for the prevention of recurrence as conventional VTE treatment, consisting of a parenteral anticoagulant followed by a VKA, and are associated with less bleeding. Because of these properties and the convenience of fixed dosing without the need for routine coagulation monitoring, guidelines now recommend DOACs over VKAs for VTE treatment in patients without active cancer...
2017: F1000Research
https://www.readbyqxmd.com/read/28710147/dietary-guidelines-for-breast-cancer-patients-a-critical-review
#7
REVIEW
Ana Teresa Limon-Miro, Veronica Lopez-Teros, Humberto Astiazaran-Garcia
Current dietary guidelines for breast cancer patients (BCPs) fail to address adequate dietary intakes of macro- and micronutrients that may improve patients' nutritional status. This review includes information from the PubMed and Biomed Central databases over the last 15 y concerning dietary guidelines for BCPs and the potential impact of a personalized, nutrient-specific diet on patients' nutritional status during and after antineoplastic treatment. Results indicated that BCPs should receive a nutritional assessment immediately after diagnosis...
July 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28709077/phytonanotherapy-for-management-of-diabetes-using-green-synthesis-nanoparticles
#8
K Anand, C Tiloke, Pragalathan Naidoo, A A Chuturgoon
The world has a rich diversity of indigenous medicinal plants. The World Health Organization (WHO) gives high priority to eco-friendly, non-hazardous and cost effective healthcare such as the use of medicinal plants to treat various illnesses, including Human immunodeficiency virus (HIV) infection and Acquired immune deficiency syndrome (AIDS), tuberculosis (TB), diabetes mellitus (DM), malaria, and cancer. In developing countries, a high proportion of the population tends to use complementary and alternative medicines (CAM) together with conventional prescription drugs...
June 27, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28707393/malaria-epstein-barr-virus-infection-and-the-pathogenesis-of-burkitt-s-lymphoma
#9
Anthony R Mawson, Suvankar Majumdar
A geographical and causal connection has long been recognized between malaria, Epstein-Barr virus (EBV) infection and Burkitt's lymphoma (BL), but the underlying mechanisms remain obscure. Potential clues are that the malaria parasite Plasmodium falciparum selectively absorbs vitamin A from the host and depends on it for its biological activities; secondly, alterations in vitamin A (retinoid) metabolism have been implicated in many forms of cancer, including BL. The first author has proposed that the merozoite-stage malaria parasite, emerging from the liver, uses its absorbed vitamin A as a cell membrane destabilizer to invade the red blood cells, causing anemia and other signs and symptoms of the disease as manifestations of an endogenous form of hypervitaminosis A (Mawson AR...
July 13, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28704918/anticancer-activity-of-graphene-oxide-reduced-graphene-oxide-silver-nanoparticle-composites
#10
Thangavel Kavinkumar, Krishnamoorthy Varunkumar, Vilwanathan Ravikumar, Sellaperumal Manivannan
In the present study, a chemical route was employed to synthesize graphene oxide (GO)-reduced graphene oxide (rGO)-Ag nanoparticle (AgNP) composites from graphite and AgNO3 using vitamin C as reducing agent. Powder X-ray diffraction pattern and field emission scanning electron microscope images revealed that the AgNP were uniformly distributed on the surface of GO and rGO nanosheets. For the first time, the cytotoxicity of GO, rGO, AgNP, GO-AgNP and rGO-AgNP composites were examined against human lung cancer A549 cells using MTT assay and reported quantitatively...
July 4, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28698499/molecular-mechanisms-behind-free-radical-scavengers-function-against-oxidative-stress
#11
REVIEW
Fereshteh Ahmadinejad, Simon Geir Møller, Morteza Hashemzadeh-Chaleshtori, Gholamreza Bidkhori, Mohammad-Saeid Jami
Accumulating evidence shows that oxidative stress is involved in a wide variety of human diseases: rheumatoid arthritis, Alzheimer's disease, Parkinson's disease, cancers, etc. Here, we discuss the significance of oxidative conditions in different disease, with the focus on neurodegenerative disease including Parkinson's disease, which is mainly caused by oxidative stress. Reactive oxygen and nitrogen species (ROS and RNS, respectively), collectively known as RONS, are produced by cellular enzymes such as myeloperoxidase, NADPH-oxidase (nicotinamide adenine dinucleotide phosphate-oxidase) and nitric oxide synthase (NOS)...
July 10, 2017: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28687643/cancer-incidence-attributable-to-lifestyle-and-environmental-factors-in-alberta-in-2012-summary-of-results
#12
Anne Grundy, Abbey E Poirier, Farah Khandwala, Xin Grevers, Christine M Friedenreich, Darren R Brenner
BACKGROUND: Estimates of the proportion of cancer cases that can be attributed to modifiable risk factors are not available for Canada and, more specifically, Alberta. The purpose of this study was to estimate the total proportion of cancer cases in Alberta in 2012 that could be attributed to a set of 24 modifiable lifestyle and environmental risk factors. METHODS: We estimated summary population attributable risk estimates for 24 risk factors (smoking [both passive and active], overweight and obesity, inadequate physical activity, diet [inadequate fruit and vegetable consumption, inadequate fibre intake, excess red and processed meat consumption, salt consumption, inadequate calcium and vitamin D intake], alcohol, hormones [oral contraceptives and hormone therapy], infections [Epstein-Barr virus, hepatitis B and C viruses, human papillomavirus, Helicobacter pylori], air pollution, natural and artificial ultraviolet radiation, radon and water disinfection by-products) by combining population attributable risk estimates for each of the 24 factors that had been previously estimated...
July 7, 2017: CMAJ Open
https://www.readbyqxmd.com/read/28673024/ancestry-adjusted-vitamin-d-metabolite-concentrations-in-association-with-cytochrome-3a-cyp3a-polymorphisms
#13
Robin Taylor Wilson, Loren D Masters, Jill S Barnholtz-Sloan, Anna C Salzberg, Terryl J Hartman
This study investigates the association between genetic polymorphisms in CYP2R1, CYP24A1 and the CYP3A family with non-summer plasma concentrations of 25(OH)D3 and proportion 24,25(OH)2D3 among healthy individuals of Sub-Saharan African and European ancestry matched on age (±5 years; n = 188 in each ancestral group) in central suburban Pennsylvania (2006-09). Vitamin D metabolites were measured using high-performance liquid chromatography/tandem mass spectrometry. Paired multiple regression and adjusted least square means analyses were used to test for associations between genotype and log-transformed metabolite concentrations, adjusted for age, sex, West African genetic ancestry proportion, body mass index, oral contraceptive (OC) use, tanning bed use, vitamin D intake, days from summer solstice, time of day, and isoforms of the vitamin D receptor (VDR) and vitamin D binding protein...
June 30, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28659302/higher-dietary-cholesterol-and-%C3%AF-3-fatty-acid-intakes-are-associated-with-a-lower-success-rate-of-helicobacter-pylori-eradication-therapy-in-japan
#14
Hiroaki Ikezaki, Norihiro Furusyo, Paul F Jacques, Motohiro Shimizu, Masayuki Murata, Ernst J Schaefer, Yoshihisa Urita, Jun Hayashi
Background:Helicobacter pylori infection is a known risk factor for duodenal ulcers, gastritis, and gastric cancer. The eradication of H. pylori is successful in treating these disorders; however, the success rate of eradication therapy is declining. There may be an interaction with nutrient intake to account for this decline.Objective: We investigated the influence of food and nutrient intake on H. pylori eradication therapy.Design: In this study, 4014 subjects underwent endoscopy, were tested for serum antibodies to H...
June 28, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28659298/nutritional-metabolomics-and-breast-cancer-risk-in-a-prospective-study
#15
Mary C Playdon, Regina G Ziegler, Joshua N Sampson, Rachael Stolzenberg-Solomon, Henry J Thompson, Melinda L Irwin, Susan T Mayne, Robert N Hoover, Steven C Moore
Background: The epidemiologic evidence for associations between dietary factors and breast cancer is weak and etiologic mechanisms are often unclear. Exploring the role of dietary biomarkers with metabolomics can potentially facilitate objective dietary characterization, mitigate errors related to self-reported diet, agnostically test metabolic pathways, and identify mechanistic mediators.Objective: The aim of this study was to evaluate associations of diet-related metabolites with the risk of breast cancer in the Prostate, Lung, Colorectal and Ovarian (PLCO) Cancer Screening Trial...
June 28, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28658926/role-of-vitamin-e-and-vitamin-a-in-oral-mucositis-induced-by-cancer-chemo-radiotherapy-a-meta-analysis
#16
REVIEW
Nallan Csk Chaitanya, Arvind Muthukrishnan, Dara Balaji Gandhi Babu, Chinta Sanjeeva Kumari, Madishetty Adi Lakshmi, Gayathri Palat, Khwaja Shoeb Alam
INTRODUCTION: Oral mucositis is known to hamper the quality of life in patients treated for oral cancer. Many pharmacological agents have been tried and tested in its management, especially vitamin supplements including A, E and their combinations. AIM: A Meta-analysis was carried out to evaluate the efficacy of vitamins individually used for prevention or treatment of oral mucositis separately for chemotherapy, concurrent chemo radiotherapy, radiotherapy and Haematopoietic Stem Cell Transplantation (HSCT) individuals...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28654155/incidence-of-hematologic-malignancy-and-cause-specific-mortality-in-the-women-s-health-initiative-randomized-controlled-trial-of-calcium-and-vitamin-d-supplementation
#17
Eric M Ammann, Matthew T Drake, Bjarni Haraldsson, Robert B Wallace, Karen C Johnson, Pinkal Desai, Emily M Lin, Brian K Link
BACKGROUND: Prior evidence of a possible link between vitamin D status and hematologic malignancy (HM) in humans comes from observational studies, leaving unresolved the question of whether a true causal relationship exists. METHODS: The authors performed a secondary analysis of data from the Women's Health Initiative Calcium/Vitamin D (CaD) trial, a large randomized controlled trial of CaD supplementation compared with placebo in older women. Kaplan-Meier and Cox proportional hazards survival analysis methods were used to evaluate the relationship between treatment assignment and 1) incident HM and 2) HM-specific mortality over 10 years following randomization...
June 27, 2017: Cancer
https://www.readbyqxmd.com/read/28643618/heat-stabilised-rice-bran-consumption-by-colorectal-cancer-survivors-modulates-stool-metabolite-profiles-and-metabolic-networks-a-randomised-controlled-trial
#18
Dustin G Brown, Erica C Borresen, Regina J Brown, Elizabeth P Ryan
Rice bran (RB) consumption has been shown to reduce colorectal cancer (CRC) growth in mice and modify the human stool microbiome. Changes in host and microbial metabolism induced by RB consumption was hypothesised to modulate the stool metabolite profile in favour of promoting gut health and inhibiting CRC growth. The objective was to integrate gut microbial metabolite profiles and identify metabolic pathway networks for CRC chemoprevention using non-targeted metabolomics. In all, nineteen CRC survivors participated in a parallel randomised controlled dietary intervention trial that included daily consumption of study-provided foods with heat-stabilised RB (30 g/d) or no additional ingredient (control)...
May 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28634625/serum-antioxidant-capacity-biochemical-profile-and-body-composition-of-breast-cancer-survivors-in-a-randomized-mediterranean-dietary-intervention-study
#19
Maria Skouroliakou, D Grosomanidis, P Massara, C Kostara, P Papandreou, D Ntountaniotis, G Xepapadakis
PURPOSE: Increasing evidence suggests that Mediterranean Diet (MD) is correlated with reduced risk of breast cancer (BC) and cancer mortality, since it modifies patients' serum antioxidant capacity, body composition and biochemical parameters. The aim of the study was to investigate whether a dietary intervention based on MD has a beneficial effect on these factors. METHODS: In this intervention study, seventy female BC survivors were randomly assigned to (1) the intervention group (personalized dietary intervention based on MD) and (2) the control group (received the updated American Cancer Society Guidelines on Nutrition and Physical Activity for Cancer Prevention and ad libitum diet)...
June 20, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28622697/vitamin-c-and-doxycycline-a-synthetic-lethal-combination-therapy-targeting-metabolic-flexibility-in-cancer-stem-cells-cscs
#20
Ernestina Marianna De Francesco, Gloria Bonuccelli, Marcello Maggiolini, Federica Sotgia, Michael P Lisanti
Here, we developed a new synthetic lethal strategy for further optimizing the eradication of cancer stem cells (CSCs). Briefly, we show that chronic treatment with the FDA-approved antibiotic Doxycycline effectively reduces cellular respiration, by targeting mitochondrial protein translation. The expression of four mitochondrial DNA encoded proteins (MT-ND3, MT-CO2, MT-ATP6 and MT-ATP8) is suppressed, by up to 35-fold. This high selection pressure metabolically synchronizes the surviving cancer cell sub-population towards a predominantly glycolytic phenotype, resulting in metabolic inflexibility...
June 9, 2017: Oncotarget
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