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https://www.readbyqxmd.com/read/29777383/predictive-value-of-pct-and-il-6-for-bacterial-infection-in-children-with-cancer-and-febrile-neutropenia
#1
Hilde T van der Galiën, Erik A H Loeffen, Karin G E Miedema, Wim J E Tissing
PURPOSE: Only a third of children with cancer and febrile neutropenia (FN) have a proven bacterial infection; nevertheless, most children are hospitalized and treated with intravenous antibiotics. Several biomarkers have been proposed as predictive markers for bacterial infection in this population. We aimed to evaluate the role of interleukin-6 (IL-6) and procalcitonin (PCT) in diagnosing bacterial infection in children with cancer and FN. METHODS: The study population was derived from a prospective database (2006-2013, IL-8 study) comprising children with cancer who presented with FN...
May 19, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29777224/progression-of-whole-blood-transcriptional-signatures-from-interferon-induced-to-neutrophil-associated-patterns-in-severe-influenza
#2
Jake Dunning, Simon Blankley, Long T Hoang, Mike Cox, Christine M Graham, Philip L James, Chloe I Bloom, Damien Chaussabel, Jacques Banchereau, Stephen J Brett, Miriam F Moffatt, Anne O'Garra, Peter J M Openshaw
Transcriptional profiles and host-response biomarkers are used increasingly to investigate the severity, subtype and pathogenesis of disease. We now describe whole-blood mRNA signatures and concentrations of local and systemic immunological mediators in 131 adults hospitalized with influenza, from whom extensive clinical and investigational data were obtained by MOSAIC investigators. Signatures reflective of interferon-related antiviral pathways were common up to day 4 of symptoms in patients who did not require mechanical ventilator support; in those who needed mechanical ventilation, an inflammatory, activated-neutrophil and cell-stress or death ('bacterial') pattern was seen, even early in disease...
May 18, 2018: Nature Immunology
https://www.readbyqxmd.com/read/29776960/effect-of-combined-treatment-with-folic-acid-vitamin-b-6-and-vitamin-b-12-on-plasma-biomarkers-of-inflammation-and-endothelial-dysfunction-in-women
#3
William G Christen, Nancy R Cook, Martin Van Denburgh, Elaine Zaharris, Christine M Albert, JoAnn E Manson
BACKGROUND: The aim of this study was to determine whether reducing plasma homocysteine concentrations with long-term, combined treatment with folic acid, vitamin B6 , and vitamin B12 alters plasma biomarkers of inflammation and endothelial dysfunction in women at increased risk of cardiovascular disease. METHODS AND RESULTS: We conducted a blood substudy of 300 treatment-adherent participants (150 in the active treatment group, 150 in the placebo group) in the WAFACS (Women's Antioxidant and Folic Acid Cardiovascular Study), a randomized, double-blind, placebo-controlled trial testing a daily combination of folic acid (2...
May 18, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29776561/circulating-micrornas-as-emerging-cardiac-biomarkers-responsive-to-acute-exercise
#4
David de Gonzalo-Calvo, Alberto Dávalos, Manuel Fernández-Sanjurjo, Laura Amado-Rodríguez, Susana Díaz-Coto, Cristina Tomás-Zapico, Ana Montero, Ángela García-González, Vicenta Llorente-Cortés, Maria Eugenia Heras, Araceli Boraita Pérez, Ángel E Díaz-Martínez, Natalia Úbeda, Eduardo Iglesias-Gutiérrez
BACKGROUND: Circulating microRNAs (c-miRNAs) are mediators of intercellular communication with great potential as cardiac biomarkers. The analysis of c-miRNAs in response to physiological stress, such as exercise, would provide valuable information for clinical practice and a deeper understanding of the molecular response to physical activity. Here, we analysed for the first time the acute exercise response of c-miRNAs reported as biomarkers of cardiac disease in a well-characterized cohort of healthy active adults...
August 1, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29775157/blood-based-biomarkers-in-breast-cancer-from-proteins-to-circulating-tumor-cells-to-circulating-tumor-dna
#5
Michael J Duffy, Enda W McDermott, John Crown
Biomarkers are the key to personalized treatment in patients with breast cancer. While tissue biomarkers are most useful in determining prognosis and upfront predicting response to therapy, circulating protein biomarkers such as CA 15-3 and carcinoembryonic antigen are mainly used in monitoring response to endocrine or chemotherapy in patients with advanced disease. Although several centers measure biomarkers in asymptomatic patients following curative surgery for primary breast cancer, the clinical utility of this practice is unclear...
May 2018: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29774032/protein-o-glcnac-modification-increases-in-white-blood-cells-after-a-single-bout-of-physical-exercise
#6
Tamás Nagy, Emese Kátai, Viktória Fisi, Tamás Tibor Takács, Antal Stréda, István Wittmann, Attila Miseta
Background: Protein O-linked N -acetylglucosamine (O-GlcNAc) is a dynamic posttranslational modification influencing the function of many intracellular proteins. Recently it was revealed that O-GlcNAc regulation is modified under various stress states, including ischemia and oxidative stress. Aside from a few contradictory studies based on animal models, the effect of exercise on O-GlcNAc is unexplored. Purpose: To evaluate O-GlcNAc levels in white blood cells (WBC) of human volunteers following physical exercise...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29772815/longitudinal-effects-of-iron-deficiency-anemia-and-subsequent-repletion-on-blood-parameters-and-the-rate-and-composition-of-growth-in-pigs
#7
Laura C Knight, Ryan N Dilger
Iron deficiency is reported as the most common nutrient deficiency worldwide. Due to rapid growth, infants are at particular risk for developing iron deficiency, which can easily progress to iron deficiency anemia (IDA), if not treated. The aim of this study was to determine the lasting effects of an early-life iron deficiency after a period of dietary iron repletion. Forty-two intact male pigs were fed, ad libitum , either control (CONT, 21.3 mg Fe/L) or iron-deficient (ID 2.72 mg Fe/L) milk replacer from postnatal day (PND) 2 to 32 (phase 1)...
May 17, 2018: Nutrients
https://www.readbyqxmd.com/read/29772657/effects-of-virgin-olive-oils-differing-in-their-bioactive-compound-contents-on-metabolic-syndrome-and-endothelial-functional-risk-biomarkers-in-healthy-adults-a-randomized-double-blind-controlled-trial
#8
Estefania Sanchez-Rodriguez, Elena Lima-Cabello, Sara Biel-Glesson, Jose R Fernandez-Navarro, Miguel A Calleja, Maria Roca, Juan A Espejo-Calvo, Blas Gil-Extremera, Maria Soria-Florido, Rafael de la Torre, Montserrat Fito, Maria-Isabel Covas, Juan de Dios Alche, Emilio Martinez de Victoria, Angel Gil, Maria D Mesa
The aim of this study was to evaluate the effect of virgin olive oils (VOOs) enriched with phenolic compounds and triterpenes on metabolic syndrome and endothelial function biomarkers in healthy adults. The trial was a three-week randomized, crossover, controlled, double-blind, intervention study involving 58 subjects supplemented with a daily dose (30 mL) of three oils: (1) a VOO (124 ppm of phenolic compounds and 86 ppm of triterpenes); (2) an optimized VOO (OVOO) (490 ppm of phenolic compounds and 86 ppm of triterpenes); and (3) a functional olive oil (FOO) high in phenolic compounds (487 ppm) and enriched with triterpenes (389 ppm)...
May 16, 2018: Nutrients
https://www.readbyqxmd.com/read/29772540/hsp70-and-gama-semino-protein-as-possible-prognostic-marker-of-prostate-cancer
#9
Sanjay Kumar, Sanjeev Gurshaney, Yori Adagunodo, Erica Gage, Shezreen Qadri, Mahak Sharma, Shalie Malik, Upender Manne, Udai P Singh, Rajesh Singh, Manoj K Mishra
In the United States, Prostate Cancer (PCa) is the leading cause of cancer-related mortality in men. PCa resulted in abnormal growth and function of prostate gland such as secretion of high level of gamma-seminoprotein (gama-SM)/Prostate-Specific Antigen (PSA) which could be detected in the blood. Beside gama-SM protein, the levels of heat shock proteins (Hsp70) were also observed significantly high. Therefore, gama-SM and Hsp70 are unique proteins with high potential for PCa therapeutics and diagnostics. High level of Hsp70 suppresses apoptosis, thus allowing PCa cells to exist; however, depletion of Hsp70 induces apoptosis in PCa cells...
June 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/29770745/2706-km-cycling-in-two-weeks-effects-on-cardiac-function-in-six-elderly-male-athletes
#10
Thomas Morville, Mads Rosenkilde, Nick Mattsson, Flemming Dela, Jørn W Helge, Hanne K Rasmusen
INTRODUCTION: Physiological effects of exercise on trained and untrained individuals have been studied extensively. Typically, young or middle-aged individuals are examined before and after short periods of vigorous exertion. METHODS: We studied six elderly male athletes (61±8 years (mean ± SD); baseline VO2 max 48±5 ml·kg-1 · min-1 ) with focus on cardiac function and biomarkers following 14 consecutive days of moderate intensity exercise. Cardiac dimensions, function, biomarkers, and other measures of cardiovascular health were examined at baseline and 2 and 28 h after the last day of cycling a total of 2706 km...
May 17, 2018: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/29770218/elevated-serum-levels-of-malondialdehyde-and-cortisol-are-associated-with-major-depressive-disorder-a-case-control-study
#11
Md Rabiul Islam, Md Reazul Islam, Imtiaz Ahmed, Abdullah Al Moktadir, Zabun Nahar, Mohammad Safiqul Islam, Shelina Fatema Binte Shahid, Sheikh Nazrul Islam, Md Saiful Islam, Abul Hasnat
Objectives: Major depressive disorder is diagnosed on the basis of patient's self-reported experiences, behavior reported by relatives, and a mental status examination, and yet we do not have any reliable biomarker for this. Mood-regulating pathways are affected by oxidative injury to lipids and cortisol is released into the blood due to stimulation of corticotrophin receptors in the adrenal cortex. Here, we aimed to determine serum levels of malondialdehyde and cortisol in major depressive disorder patients and controls...
2018: SAGE Open Medicine
https://www.readbyqxmd.com/read/29769838/selected-biomarkers-correlate-with-the-origin-and-severity-of-sepsis
#12
Michal Holub, Olga Džupová, Michaela Růžková, Alžběta Stráníková, Eva Bartáková, Jan Máca, Jiří Beneš, Heiko Herwald, Ondřej Beran
The microbial etiology and source of sepsis influence the inflammatory response. Therefore, the plasma levels of cytokines (IL-6, IL-8, and IL-10), chemokines (CCL2/MCP-1, MIP-1 β ), heparin-binding protein (HBP), soluble CD14 (sCD14), and cortisol were analyzed in blood from septic patients obtained during the first 96 hours of intensive care unit hospitalization. The etiology was established in 56 out of a total of 62 patients enrolled in the study. Plasma concentrations of MCP-1, sCD14, IL-6, and IL-10 were significantly higher in patients with community-acquired pneumonia (CAP; n = 10) and infective endocarditis (IE; n = 11) compared to those with bacterial meningitis (BM; n = 18)...
2018: Mediators of Inflammation
https://www.readbyqxmd.com/read/29769442/distinct-biomarker-signatures-in-hiv-acute-infection-associate-with-viral-dynamics-and-reservoir-size
#13
Jeffrey E Teigler, Louise Leyre, Nicolas Chomont, Bonnie Slike, Ningbo Jian, Michael A Eller, Nittaya Phanuphak, Eugène Kroon, Suteeraporn Pinyakorn, Leigh Anne Eller, Merlin L Robb, Jintanat Ananworanich, Nelson L Michael, Hendrik Streeck, Shelly J Krebs
Estimating the size of the viral reservoir is critical for HIV cure strategies. Biomarkers in peripheral circulation may give insights into the establishment of the viral reservoir in compartments not easily accessible. We therefore measured systemic levels of 84 soluble biomarkers belonging to a broad array of immune pathways in acute HIV infection in both antiretroviral therapy-naive (ART-naive) individuals as well as individuals who began ART upon early detection of HIV infection. These biomarkers were measured longitudinally during acute and chronic infection and their relationship to viral reservoir establishment and persistence was assessed...
May 17, 2018: JCI Insight
https://www.readbyqxmd.com/read/29768624/analysis-of-the-immunological-biomarker-profile-during-acute-zika-virus-infection-reveals-the-overexpression-of-cxcl10-a-chemokine-linked-to-neuronal-damage
#14
Felipe Gomes Naveca, Gemilson Soares Pontes, Aileen Yu-Hen Chang, George Allan Villarouco da Silva, Valdinete Alves do Nascimento, Dana Cristina da Silva Monteiro, Marineide Souza da Silva, Lígia Fernandes Abdalla, João Hugo Abdalla Santos, Tatiana Amaral Pires de Almeida, Matilde Del Carmen Contreras Mejía, Tirza Gabrielle Ramos de Mesquita, Helia Valeria de Souza Encarnação, Matheus de Souza Gomes, Laurence Rodrigues Amaral, Ana Carolina Campi-Azevedo, Jordana Graziela Coelho-Dos-Reis, Lis Ribeiro do Vale Antonelli, Andréa Teixeira-Carvalho, Olindo Assis Martins-Filho, Rajendranath Ramasawmy
BACKGROUND: Infection with Zika virus (ZIKV) manifests in a broad spectrum of disease ranging from mild illness to severe neurological complications and little is known about Zika immunopathogenesis. OBJECTIVES: To define the immunologic biomarkers that correlate with acute ZIKV infection. METHODS: We characterized the levels of circulating cytokines, chemokines, and growth factors in 54 infected patients of both genders at five different time points after symptom onset using microbeads multiplex immunoassay; comparison to 100 age-matched controls was performed for statistical analysis and data mining...
May 14, 2018: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/29768470/integrative-omics-to-detect-bacteremia-in-patients-with-febrile-neutropenia
#15
Rachel S Kelly, Jessica Lasky-Su, Sai-Ching J Yeung, Richard M Stone, Jeffrey M Caterino, Sean C Hagan, Gary H Lyman, Lindsey R Baden, Brett E Glotzbecker, Christopher J Coyne, Christopher W Baugh, Daniel J Pallin
BACKGROUND: Cancer chemotherapy-associated febrile neutropenia (FN) is a common condition that is deadly when bacteremia is present. Detection of bacteremia depends on culture, which takes days, and no accurate predictive tools applicable to the initial evaluation are available. We utilized metabolomics and transcriptomics to develop multivariable predictors of bacteremia among FN patients. METHODS: We classified emergency department patients with FN and no apparent infection at presentation as bacteremic (cases) or not (controls), according to blood culture results...
2018: PloS One
https://www.readbyqxmd.com/read/29768320/monocyte-chemoattractant-protein-1-as-a-predictor-of-coronary-atherosclerosis-in-patients-receiving-coronary-angiography
#16
Simon A Mahler, Thomas C Register, Robert F Riley, Ralph B D'Agostino, Jason P Stopyra, Chadwick D Miller
BACKGROUND: Animal studies suggest that monocyte chemoattractant protein-1 (MCP-1) is a promising biomarker for coronary artery atherosclerosis (CAA), but human studies have been inconclusive. OBJECTIVE: To determine potential relationships between plasma MCP-1 and CAA in patients with acute chest pain. METHODS: A secondary analysis of 150 patients enrolled in emergency department chest pain risk stratification clinical investigations was conducted...
June 2018: Critical Pathways in Cardiology
https://www.readbyqxmd.com/read/29768263/fibrinopeptide-a-induces-expression-of-c-reactive-protein-via-the-ros-erk1-2-p38-nf-%C3%AE%C2%BAb-signal-pathway-in-vascular-smooth-muscle-cells
#17
Shouzhu Xu, Jing Zhao, Juntian Liu, Wei Gou
BACKGROUND/AIMS: Atherosclerosis is a chronic inflammatory disease in the artery walls. Fibrinopeptide A (FPA) is a biomarker of the activation of coagulation system, and a high concentration of FPA in blood occurs in patients with ischemic heart disease etc. However, there exist few studies on the pathological effects of FPA in cardiovascular system. Therefore, the present study examined the effect of FPA on CRP expression in VSMCs and the molecular mechanisms. METHODS: mRNA and protein expression was identified by quantitative real-time PCR and Western blot, respectively...
May 11, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29767735/untargeted-metabolomics-identifies-novel-potential-biomarkers-of-habitual-food-intake-in-a-cross-sectional-study-of-postmenopausal-women
#18
Ying Wang, Susan M Gapstur, Brian D Carter, Terryl J Hartman, Victoria L Stevens, Mia M Gaudet, Marjorie L McCullough
Background: Recent studies suggest that untargeted metabolomics is a promising tool to identify novel biomarkers of individual foods. However, few large cross-sectional studies with comprehensive data on habitual diet and circulating metabolites have been conducted. Objective: We aimed to identify potential food biomarkers and evaluate their predictive accuracy. Methods: We conducted a cross-sectional analysis of consumption of 91 food groups or items, assessed by a 152-item food-frequency questionnaire, in relation to 1186 serum metabolites measured by mass spectrometry-based platforms from 1369 nonsmoking postmenopausal women (mean age = 68...
May 15, 2018: Journal of Nutrition
https://www.readbyqxmd.com/read/29767680/propensity-for-adverse-pregnancy-outcomes-in-african-american-women-may-be-explained-by-low-energy-expenditure-in-early-pregnancy
#19
Jasper Most, L Anne Gilmore, Abby D Altazan, Marshall St Amant, Robbie A Beyl, Eric Ravussin, Leanne M Redman
Background: African-American (AA) women have poorer pregnancy outcomes and studies in nonpregnant women suggest a different etiology of weight gain in AA compared with white women. We hypothesized that physiologic factors such as low energy expenditure and physical activity would be present in AA compared with white women in pregnancy. Objective: We aimed to identify physiologic risk factors for disordered energy balance in AA and white women early in pregnancy...
May 14, 2018: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29767675/a-comparison-of-methods-for-adjusting-biomarkers-of-iron-zinc-and-selenium-status-for-the-effect-of-inflammation-in-an-older-population-a-case-for-interleukin-6
#20
Sue O MacDonell, Jody C Miller, Michelle J Harper, Malcolm R Reid, Jillian J Haszard, Rosalind S Gibson, Lisa A Houghton
Background: Older people are at risk of micronutrient deficiencies, which can be under- or overestimated in the presence of inflammation. Several methods have been proposed to adjust for the effect of inflammation; however, to our knowledge, none have been investigated in older adults in whom chronic inflammation is common. Objective: We investigated the influence of various inflammation-adjustment methods on micronutrient biomarkers associated with anemia in older people living in aged-care facilities in New Zealand...
May 14, 2018: American Journal of Clinical Nutrition
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