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Plasma biomarkers

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https://www.readbyqxmd.com/read/29783093/a-direct-plasma-mirna-assay-for-early-detection-and-histological-classification-of-lung-cancer
#1
Qixin Leng, Yue Wang, Feng Jiang
Cell-free microRNAs in plasma provide circulating biomarkers for lung cancer. Most techniques for analysis of miRNAs require a large plasma volume to purify a sufficient RNA yield followed by complicated downstream processing. Small differences in the multiple procedures often cause large analytical variations and poor diagnostic values of the plasma biomarkers. Here we investigate whether directly quantifying plasma miRNAs without RNA purification could diagnose lung cancer. FirePlex assay was directly applied to 20 μl plasma of 56 lung cancer patients and 28 cancer free controls for quantifying 11 lung tumor-associated miRNAs...
May 17, 2018: Translational Oncology
https://www.readbyqxmd.com/read/29783087/association-of-t-and-non-t-cell-cytokines-with-anhedonia-role-of-gender-differences
#2
Manish K Jha, Andrew H Miller, Abu Minhajuddin, Madhukar H Trivedi
OBJECTIVE: Among individual depressive symptoms, anhedonia has been reliably associated with activation of the innate immune response. However, it is unclear whether this association extends to T cell cytokines and if gender differentially affects this association. METHOD: Concentrations of T (IL-17, T-helper (Th) 1- and Th2-) and non-T cell cytokines were measured in plasma using the Bioplex Pro™ human cytokine multiplex kit in Combining Medications to Enhance Depression Outcomes (CO-MED) trial participants who provided plasma at baseline (n = 166)...
May 12, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29783085/indoor-black-carbon-and-biomarkers-of-systemic-inflammation-and-endothelial-activation-in-copd-patients
#3
Eric Garshick, Stephanie T Grady, Jaime E Hart, Brent A Coull, Joel D Schwartz, Francine Laden, Marilyn L Moy, Petros Koutrakis
RATIONALE: Evidence linking traffic-related particle exposure to systemic effects in chronic obstructive lung disease (COPD) patients is limited. OBJECTIVES: Assess relationships between indoor black carbon (BC), a tracer of traffic-related particles, and plasma biomarkers of systemic inflammation and endothelial activation. METHODS: BC was measured by reflectance in fine particle samples over a mean of 7.6 days in homes of 85 COPD patients up to 4 times seasonally over a year...
May 18, 2018: Environmental Research
https://www.readbyqxmd.com/read/29783048/effect-of-auriculotherapy-on-the-plasma-concentration-of-biomarkers-in-individuals-with-knee-osteoarthritis
#4
Rebeca Graça Costa-Cavalcanti, Danúbia da Cunha de Sá-Caputo, Eloá Moreira-Marconi, Cristiane Ribeiro Kütter, Samuel Brandão-Sobrinho-Neto, Laisa Liane Paineiras-Domingos, Marcia Cristina Moura-Fernandes, João Marcelo Castelpoggi da Costa, José Maurício de Morais Carmo, José Firmino Nogueira-Neto, Shyang Chang, Mario Bernardo-Filho
Knee osteoarthritis (KOA) is one of the most frequent non-communicable diseases with pain associated symptoms and affects the musculoskeletal system. Various forms of treatment can be indicated and non-pharmacological treatment is also an available option for the management of KOA individuals. For instance, auriculotherapy (AT) is one possible procedure associated with the Traditional Chinese Medicine for dealing with KOA. It is believed that the concentration of certain biomarkers could be altered in individuals with KOA after AT...
May 18, 2018: Journal of Acupuncture and Meridian Studies
https://www.readbyqxmd.com/read/29782392/collagen-biomarkers-predict-new-onset-of-hypertension-in-normotensive-participants-the-multi-ethnic-study-of-atherosclerosis
#5
Daniel A Duprez, Myron D Gross, Joachim H Ix, Jorge R Kizer, Russell P Tracy, Steven Shea, David R Jacobs
OBJECTIVE: Vascular remodeling associated with increased extracellular matrix (ECM) may precede hypertension. Procollagen type III N-terminal propeptide (PIIINP) and collagen type I carboxy-terminal telopeptide (ICTP) reflect collagen turnover and are important in ECM remodeling. PIIINP and ICTP are increased in cardiovascular diseases (CVD). We hypothesized that PIIINP and ICTP among normotensives predict incident hypertension. METHODS: We included 1252 Multi-Ethnic Study of Atherosclerosis participants with mean age 58...
May 17, 2018: Journal of Hypertension
https://www.readbyqxmd.com/read/29782179/early-intravascular-events-are-associated-with-development-of-ards
#6
Raja-Elie E Abdulnour, Tina Gunderson, Ioanna Barkas, Jack Y Timmons, Cindy Barnig, Michelle Gong, Daryl J Kor, Ognjen Gajic, Daniel Talmor, Rickey E Carter, Bruce D Levy
RATIONALE: The acute respiratory distress syndrome (ARDS) is a devastating illness with limited therapeutic options. A better understanding of early biochemical and immunological events in ARDS could inform the development of new preventive and treatment strategies. OBJECTIVE: To determine select peripheral blood lipid mediator and leukocyte responses in patients at-risk for ARDS. METHODS: Patients at risk for ARDS were randomized as part of a multicenter, double-blind clinical trial of aspirin versus placebo (LIPS-A; NCT01504867)...
May 21, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29781374/april-and-staci-could-be-predictors-of-severe-multiorgan-dysfunction-syndrome-in-sepsis
#7
Dajana F Lendak, Dunja M Mihajlović, Aleksandra S Novakov-Mikić, Jasmina M Boban, Milan Ubavić, Snežana V Brkić
Although the role of B cells in sepsis immunoregulation has become an interesting topic, there is lack of data on the role of B cell function regulators in prediction of multiorgan dysfunction syndrome (MODS). The aim of this study was to evaluate the prognostic value of A Proliferation Inducing Ligand (APRIL) and soluble Transmembrane Activator and CAML Interactor Protein (sTACI), the main B cell function regulators, in prediction of MODS development within the first 48h after admission to intensive care unit, among septic patients...
May 21, 2018: Virulence
https://www.readbyqxmd.com/read/29781175/translational-safety-biomarkers-of-colonic-barrier-integrity-in-the-rat
#8
Tim Erkens, Ruud Bueters, Marjolein van Heerden, Filip Cuyckens, Rob Vreeken, Nick Goeminne, Lieve Lammens
The intestinal barrier controls intestinal permeability, and its disruption has been associated with multiple diseases. Therefore, preclinical safety biomarkers monitoring barrier integrity are essential during the development of drugs targeting the intestines, particularly if starting treatment early after onset of disease. Classical toxicology endpoints are not sensitive enough and therefore our objective was to identify non-invasive markers enabling early in vivo detection of colonic barrier perturbation...
May 20, 2018: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/29781159/a-comparative-proteomics-analysis-of-five-body-fluids-plasma-urine-cerebrospinal-fluid-amniotic-fluid-and-saliva
#9
Mindi Zhao, Yehong Yang, Zhengguang Guo, Chen Shao, Haidan Sun, Yang Zhang, Ying Sun, Yaoran Liu, Yijun Song, Liwei Zhang, Qian Li, Juntao Liu, Mingxi Li, Youhe Gao, Wei Sun
PURPOSE: Body fluid is considered a rich source of disease biomarkers. Proteins in many body fluids have potential clinical applications for disease diagnostic and prognostic predictions. EXPERIMENTAL DESIGN: To determine differences in the protein components and functional features of body fluids, a proteomic comparison of five body fluids (plasma, urine, cerebrospinal fluid, saliva and amniotic fluid) was conducted by high-resolution mass spectrometry. RESULTS: A total of 4717 nonredundant proteins were identified, and the concentrations of 3433 proteins were estimated by an intensity-based algorithm quantitation method...
May 21, 2018: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/29781099/flow-cytometric-analysis-of-extracellular-vesicle-subsets-in-plasma-impact-of-swarm-by-particles-of-non-interest
#10
S F W M Libregts, G J A Arkesteijn, A Németh, E N M Nolte-'t Hoen, M H M Wauben
BACKGROUND: Extracellular vesicles (EVs) in plasma are increasingly recognized as potential biomarkers. EV analysis for diagnostic purposes should be robust and should allow analysis of EV subsets in a wide range of abundance and in a large number of patient samples. Flow cytometry offers possibilities to meet these criteria as it allows multi-parameter analysis of individual EVs. However, analysis of plasma EVs is challenging due to their size and heterogeneity and the presence of other submicron-sized particles in plasma that could interfere in EV-analysis...
May 20, 2018: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/29779969/increased-malondialdehyde-vs-reduced-sirtuin-1-in-relation-with-adiposity-atherogenicity-and-hematological-indices-in-metabolic-syndrome-patients-with-and-without-prediabetes
#11
Samar Abu Rkhaya, Nailya Bulatova, Violet Kasabri, Randa Naffa, Reema Alquoqa
BACKGROUND: Sirtuin 1 (SIRT 1) and malondialdehyde (MDA) were implicated in metabolic syndrome (MetS) and type 2 diabetes mellitus (T2DM) pathophysiology. AIMS AND METHODS: This cross-sectional study aimed to investigate both SIRT 1 and MDA in 30 lean healthy control, 31 normoglycemic MetS subjects and 30 MetS-Pre/T2DM drug naïve. C orrelation studies were established for both biomarkers with adiposity indices [conicity index (CI), waist circumference (WC), weight-to-height (WHtR) ratio, weight-to-hip (WHR) ratio, hip circumference (HC), and body adiposity index (BAI)], hematological indices [red cell distribution width (RDW), mean platelet volume (MPV), platelet-to-lymphcyte ratio (PLR), neutrophil-to-lymphocyte ratio (NLR), monocyte-to-lymphocyte ratio (MLR)] and atherogenicity indices (atherogenicity index of plasma (AIP = log10 TG/HDL-C ratio), TC/HDL-C and LDL-C/HDL-C ratios]...
May 15, 2018: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/29779810/association-between-nutritional-blood-based-biomarkers-and-clinical-outcome-in-sarcopenia-patients
#12
Salah Gariballa, Awad Alessa
BACKGROUND: Although several micronutrients deficiency were reported to be associated with poor muscle function, however information on sarcopenia patients is still lacking. The aim of this report was to measure some micronutrients blood-based status in sarcopenia patients during both acute illness and recovery. DESIGN: We assessed nutritional status of randomly selected hospitalised patients using anthropometric, haematological and biochemical data at baseline, 6 weeks and at 6 months...
June 2018: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/29779698/patients-with-concurrent-tuberculosis-and-diabetes-have-a-pro-atherogenic-plasma-lipid-profile
#13
Frank Vrieling, Katharina Ronacher, Léanie Kleynhans, Erik van den Akker, Gerhard Walzl, Tom H M Ottenhoff, Simone A Joosten
BACKGROUND: Type 2 diabetes mellitus (DM) is a major risk factor for development of tuberculosis (TB), however the underlying molecular foundations are unclear. Since lipids play a central role in the development of both DM and TB, lipid metabolism may be important for TB-DM pathophysiology. METHODS: A 1 H NMR spectroscopy-based platform was used to determine 225 lipid and other metabolic intermediates in plasma samples of healthy controls (n = 50) and patients with TB (n = 50), DM (n = 50) or TB-DM (n = 27)...
May 17, 2018: EBioMedicine
https://www.readbyqxmd.com/read/29779470/ascites-derived-extracellular-micrornas-as-potential-biomarkers-for-ovarian-cancer
#14
Luděk Záveský, Eva Jandáková, Vít Weinberger, Luboš Minář, Veronika Hanzíková, Daniela Dušková, Lenka Záveská Drábková, Iveta Svobodová, Aleš Hořínek
Ovarian cancer as the most fatal gynecological malignancy is often manifested by excessive fluid accumulation known as ascites or effusion. Ascites-derived microRNAs (miRNAs) may be closely associated with ovarian cancer progression. However, our knowledge of their roles, altered expression, and clinical outcomes remained limited. In this study, large-scale expression profiling of 754 human miRNAs was performed using real-time quantitative polymerase chain reaction and 384-well TaqMan array human miRNA A and B cards to identify differentially expressed miRNAs between extracellular fraction of the ascitic fluid associated with high-grade serous ovarian carcinomas and control plasma...
January 1, 2018: Reproductive Sciences
https://www.readbyqxmd.com/read/29778837/defining-host-responses-during-systemic-bacterial-infection-through-construction-of-a-murine-organ-proteome-atlas
#15
John D Lapek, Robert H Mills, Jacob M Wozniak, Anaamika Campeau, Ronnie H Fang, Xiaoli Wei, Kirsten van de Groep, Araceli Perez-Lopez, Nina M van Sorge, Manuela Raffatellu, Rob Knight, Liangfang Zhang, David J Gonzalez
Group A Streptococcus (GAS) remains one of the top 10 deadliest human pathogens worldwide despite its sensitivity to penicillin. Although the most common GAS infection is pharyngitis (strep throat), it also causes life-threatening systemic infections. A series of complex networks between host and pathogen drive invasive infections, which have not been comprehensively mapped. Attempting to map these interactions, we examined organ-level protein dynamics using a mouse model of systemic GAS infection. We quantified over 11,000 proteins, defining organ-specific markers for all analyzed tissues...
April 28, 2018: Cell Systems
https://www.readbyqxmd.com/read/29778398/antipsychotic-induced-disorders-reported-cases-and-prospective-study-on-muscle-biomarkers-after-high-exposure-to-haloperidol
#16
Abderrezak Khelfi, Mohammed Azzouz, Rania Abtroun, Mohammed Reggabi, Berkahoum Alamir
Antipsychotic drugs are known to induce neuromuscular effects. In this study, we review 13 years (2002-2014) of antipsychotic intoxications reported by the anti-poisoning center of Algiers (APCA). The most recorded symptoms were neuromuscular/muscular disorders, of which haloperidol was the most inducer among all antipsychotics. A prospective study was conducted between December 2012 and January 2017 to evaluate muscle effects generated after intentional or accidental ingestion of haloperidol. Fifty-one patients admitted in different emergency departments in Algiers were included in this study...
May 17, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29777832/novel-cysteine-and-albumin-adduct-biomarkers-to-prove-human-poisoning-with-the-pesticide-oxydemeton-s-methyl
#17
Harald John, Markus Siegert, Florian Eyer, Franz Worek, Horst Thiermann, Andreas Kranawetvogl
We herein report on the forensic analysis of plasma samples to prove human poisoning with oxydemeton-S-methyl (ODM), S-(2-(ethylsulfinyl)ethyl)-O,O-dimethyl phosphorothioate. This organophosphorus pesticide is the active ingredient of Metasystox® , that was swallowed by a 77-year-old woman to commit suicide. ODM belongs to the class of dimethyl phosphoryl (DMP) pesticides, contains a 2-(ethylsulfinyl)ethanethiol (ESOET) leaving group and undergoes adduct formation with endogenous molecules as elaborated herein with human serum exposed to pesticides in vitro...
May 16, 2018: Toxicology Letters
https://www.readbyqxmd.com/read/29777724/novel-mirna-biomarkers-for-genotoxicity-screening-in-mouse
#18
Hiroyuki Oka, Koichi Masuno, Takeki Uehara, Toru Okamoto, Yoshiharu Matsuura, Toru Nakano, Shinpei Yamaguchi
The genotoxic potential of drugs is a serious problem, and its evaluation is one of the most critical processes of drug development. Although the comet assay of compound-exposed tissue is a frequently used genotoxicity test, its high false-positive rate is a major complication, and we consistently obtained false-positive results using the comet assay of mouse liver for nine hepatotoxic non-genotoxins (NGTXs). To identify novel genotoxin (GTX)-specific biomarkers, we screened the expression of 750 microRNAs (miRNAs) in the livers of mice treated with GTXs or NGTXs...
May 16, 2018: Toxicology
https://www.readbyqxmd.com/read/29777383/predictive-value-of-pct-and-il-6-for-bacterial-infection-in-children-with-cancer-and-febrile-neutropenia
#19
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/29777287/decreased-plasma-levels-of-gasotransmitter-hydrogen-sulfide-in-patients-with-schizophrenia-correlation-with-psychopathology-and-cognition
#20
Jian-Wen Xiong, Bo Wei, Yan-Kun Li, Jin-Qiong Zhan, Shu-Zhen Jiang, Hai-Bo Chen, Kun Yan, Bin Yu, Yuan-Jian Yang
OBJECTIVE: Aberrant N-methyl-D-aspartate receptor (NMDAR) function has been implicated in the pathophysiology of schizophrenia. Hydrogen sulfide (H2 S) is an endogenous gasotransmitter that regulates NMDAR function. The current study investigated the relationship between plasma H2 S levels and both psychopathological and cognitive symptoms in schizophrenia. MATERIALS AND METHODS: Forty-one patients with schizophrenia and 40 healthy control subjects were recruited in present study...
May 18, 2018: Psychopharmacology
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