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https://www.readbyqxmd.com/read/29451632/-oxidative-stress-lung-function-and-exposure-to-air-pollutants-in-mexican-schoolchildren-with-and-without-asthma
#1
Ana Teresa Romero-Calderón, Hortensia Moreno-Macías, Joel David Francisco Manrique-Moreno, Horacio Riojas-Rodríguez, Yessica Dorín Torres-Ramos, Araceli Montoya-Estrada, Juan José Hicks-Gómez, Benigno Linares-Segovia, Beatriz Cárdenas, Claudia Bárcenas, Albino Barraza-Villarreal
OBJECTIVE.: To assess the association between the air pollutants exposure on markers of oxidative stress and lung function in schoolchildren with and without asthma from Salamanca and Leon Guanajuato, Mexico. MATERIALS AND METHODS: We realized determinations of oxidative stress biomarkers and lung function tests in 314 schoolchildren. Information of air pollutants (O3, SO2, CO, PM2.5 and PM10) were obtained from monitoring stations and multiple linear regression models were run to assess the association...
November 2017: Salud Pública de México
https://www.readbyqxmd.com/read/29450135/development-of-a-specific-index-to-detect-malnutrition-in-athletes-validity-in-weight-class-or-intermittent-fasted-athletes
#2
François D Desgorces, Christophe Moinard, Mounir Chennaoui, Jean-François Toussaint, Cyril Petibois, Philippe Noirez
Fasted or weight-category athletes manage their training under strict diet conditions that could impair the stress-recovery balance and result in acute or chronic fatigue. However, to date, no validated biomarker are available to quantify this phenomena. The aim of this study was to assess the validity of a specific index combining plasma albumin and weight change to detect nutrition-related risks of fatigue increase and under-performance in athletes experiencing particular nutritional conditions. An athlete's nutrition risk index (ANRI) equation, based on data from lightweight and heavyweight rowers, was developed using relationship between plasma albumin concentrations combined to weight changes with sport performance and overtraining scores and was tested by odds ratio for failure...
June 2017: Biochimie Open
https://www.readbyqxmd.com/read/29447902/the-erythrocyte-osmotic-resistance-test-as-screening-tool-for-cholesterol-related-lysosomal-storage-diseases
#3
Laura López de Frutos, Jorge J Cebolla, Pilar Irún, Ralf Köhler, Pilar Giraldo
BACKGROUND: Erythrocyte volume regulation and membrane elasticity are essential for adaptation to osmotic and mechanical stress, and life span. Here, we evaluated whether defective cholesterol trafficking caused by the rare lysosomal storages diseases (LSDs), Niemann-Pick type C (NPC) and Lysosomal acid lipase (LAL) deficiency (LALD) impairs these properties. Moreover, we tested whether measurements of cholesterol membrane content and osmotic resistance serve as a screening test for these LSDs...
February 12, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29446707/arsenic-cadmium-and-mercury-induced-hypertension-mechanisms-and-epidemiological-findings
#4
Airton da Cunha Martins, Maria Fernanda Hornos Carneiro, Denise Grotto, Joseph A Adeyemi, Fernando Barbosa
Arsenic (As), cadmium (Cd), and mercury (Hg) are toxic elements widely distributed in the environment. Exposure to these elements was attributed to produce several acute and chronic illnesses including hypertension. The aim of this review is to provide a summary of the most frequently proposed mechanisms underlying hypertension associated with As, Cd, and Hg exposure including: oxidative stress, impaired nitric oxide (NO) signaling, modified vascular response to neurotransmitters and disturbed vascular muscle Ca 2+ signaling, renal damage, and interference with the renin-angiotensin system...
February 15, 2018: Journal of Toxicology and Environmental Health. Part B, Critical Reviews
https://www.readbyqxmd.com/read/29446025/healing-potential-of-adiantum-capillus-veneris-l-plant-extract-on-bisphenol-a-induced-hepatic-toxicity-in-male-albino-rats
#5
Qudsia Kanwal, Abdul Qadir, Amina, Asmatullah, Hafiza Hira Iqbal, Bushra Munir
Bisphenol A (BPA) is a widely used environmental pollutant in the production of plastics but causes hepatotoxicity in mammals. In the present study, we studied the BPA-induced oxidative stress in rats and ameliorative potential of Adiantum capillus-veneris L. plant. It was concluded that the BPA can reduce the body and liver weight, increase in biochemical levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST), total bilirubin, and disturb the normal hepatic physiology, histology, and metabolism...
February 14, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29445325/biomarkers-of-amyotrophic-lateral-sclerosis-current-status-and-interest-of-oxysterols-and-phytosterols
#6
REVIEW
Anne Vejux, Amira Namsi, Thomas Nury, Thibault Moreau, Gérard Lizard
Amyotrophic lateral sclerosis (ALS) is a non-demyelinating neurodegenerative disease in adults with motor disorders. Two forms exist: a sporadic form (90% of cases) and a family form due to mutations in more than 20 genes including the Superoxide dismutase 1, TAR DNA Binding Protein, Fused in Sarcoma, chromosome 9 open reading frame 72 and VAPB genes. The mechanisms associated with this pathology are beginning to be known: oxidative stress, glutamate excitotoxicity, protein aggregation, reticulum endoplasmic stress, neuroinflammation, alteration of RNA metabolism...
2018: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29445292/late-onset-asthma-current-perspectives
#7
REVIEW
Tsunahiko Hirano, Kazuto Matsunaga
Because the pathophysiology of asthma has diverse characteristics, to manage the disease effectively, it is important for clinicians to distinguish among the clinical phenotypes. Among them, adult-onset asthma, that is, late-onset asthma (LOA), is increasing because of the aging of the population. The phenotype of LOA is largely divided into two types according to the presence or absence of eosinophilic inflammation, T-helper (Th)2- and non-Th2-associated LOA. Especially in Th2 LOA related to rhinosinusitis, as pulmonary function at onset is poor and asthma exacerbations occur frequently, it is important to detect this phenotype in the early phase by using a biomarker of Th2-type inflammation such as fractional exhaled nitric oxide (FE NO )...
2018: Journal of Asthma and Allergy
https://www.readbyqxmd.com/read/29445240/high-fat-diet-induced-metabolically-obese-and-normal-weight-rabbit-model-shows-early-vascular-dysfunction-mechanisms-involved
#8
Gabriela Alarcon, Julieta Roco, Mirta Medina, Analia Medina, Maria Peral, Susana Jerez
BACKGROUND: Obesity contributes significantly to the development and evolution of cardiovascular disease (CVD) which is believed to be mediated by oxidative stress, inflammation and endothelial dysfunction. However, the vascular health of metabolically obese and normal weight (MONW) individuals is not completely comprehended. OBJECTIVES: The purpose of our study was to evaluate vascular function on the basis of a high fat diet (HFD)-MONW rabbit model. SUBJECTS: Twenty four male rabbits were randomly assigned to receive either a regular diet (CD, n = 12) or a high-fat diet (18% extra fat on the regular diet, HFD, n = 12) for 6 weeks...
January 30, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29444982/the-unique-features-of-proteins-depicting-the-chicken-amniotic-fluid
#9
Mylène Da Silva, Clara Dombre, Aurélien Brionne, Philippe Monget, Magali Chessé, Marion De Pauw, Maryse Mills, Lucie Combes-Soia, Valérie Labas, Nicolas Guyot, Yves Nys, Sophie Rehault-Godbert
In many amniotes, the amniotic fluid is depicted as a dynamic milieu that participates in the protection of the embryo (cushioning, hydration, and immunity). However, in birds, the protein profile of the amniotic fluid remains unexplored, even though its proteomic signature is predicted to differ compared to human's. In fact, unlike humans, chicken amniotic fluid does not collect excretory products and its protein composition strikingly changes at mid-development due to the massive inflow of egg white proteins, which are thereafter swallowed by the embryo to support its growth...
February 14, 2018: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/29444484/application-of-a-new-targeted-low-density-microarray-and-conventional-biomarkers-to-evaluate-the-health-status-of-marine-mussels-a-field-study-in-sardinian-coast-italy
#10
Susanna Sforzini, Caterina Oliveri, Andrea Orrù, Giannina Chessa, Beniamina Pacchioni, Caterina Millino, Awadhesh N Jha, Aldo Viarengo, Mohamed Banni
In the present study, we investigated the health status of marine mussels (Mytilus galloprovincialis) caged and deployed at three different sites on the Sardinian coastline characterized by different levels of contamination: Fornelli (F, the reference site), Cala Real (CR), and Porto Torres (PT). A new low density oligonucleotide microarray was used to investigate global gene expression in the digestive gland of mussels. Target genes were selected to cover most of the biological processes involved in the stress response in bivalve mollusks (e...
February 11, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29442361/comparison-of-lipid-peroxidation-and-catalase-response-in-invasive-dreissenid-mussels-exposed-to-single-and-multiple-stressors
#11
Carly J Nowicki, Donna R Kashian
Dreissenid mussels, Dreissena bugensis (quagga mussel) and D. polymorpha (zebra mussel), are prolific invasive species to the freshwaters of the United States and Western Europe. In the Great Lakes, D. polymorpha initially dominated the system since their invasion in the mid-1980 s; however, recently D. bugensis has displaced D. polymorpha as the dominant species. Dreissena bugensis has several competitive advantages over D. polymorpha, including greater tolerances to deeper and colder waters and lower respiration rates...
February 14, 2018: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/29442259/lc-ms-based-serum-metabolomics-reveals-a-distinctive-signature-in-patients-with-rheumatoid-arthritis
#12
Ju Li, Nan Che, Lingxiao Xu, Qian Zhang, Qi Wang, Wenfeng Tan, Miaojia Zhang
Metabolomics has been applied to explore altered metabolite profiles in disease and identify unique metabolic signatures in recent years. We aim to characterize the metabolic profile of rheumatoid arthritis patients and explore its underlying pathological processes using metabolomics approach. Serum samples from 30 rheumatoid arthritis (RA) patients, 30 primary Sjogren's syndrome (pSS) patients, and 32 healthy controls (HC) were collected. The sample was analyzed by ultra-high-performance liquid chromatography coupled with high-resolution mass spectrometry (UPLC-HRMS)...
February 13, 2018: Clinical Rheumatology
https://www.readbyqxmd.com/read/29439325/prediction-and-early-detection-of-alzheimer-s-dementia-professional-disclosure-practices-and-ethical-attitudes
#13
Mark Schweda, Anna Kögel, Claudia Bartels, Jens Wiltfang, Anja Schneider, Silke Schicktanz
BACKGROUND: Biomarker-supported testing for preclinical and prodromal Alzheimer's disease (AD) finds its way into clinical practice. Professional attitudes and practices regarding disclosure and ethical issues are controversial in many countries. OBJECTIVES: Against this background, the objective was to survey the actual practice and the attitudes of physicians in German hospitals and memory clinics in order to explore possible practical insecurities and ethical concerns...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29436665/microrna-375-inhibits-glioma-cell-proliferation-and-migration-by-downregulating-rwdd3-in%C3%A2-vitro
#14
Chen-Xing Ji, Yang-Hua Fan, Fan Xu, Shi-Gang Lv, Min-Hua Ye, Miao-Jing Wu, Xin-Gen Zhu, Lei Wu
Derived from brain glial cells, gliomas are currently the most common primary tumours in the central nervous system and are characterised by a high recurrence rate and poor prognosis. RWDD3 (RWD domain-containing sumoylation enhancer, also termed RSUME), which can be induced by cellular stress, such as CoCl2, heat shock and hypoxia, may play a crucial role in tumour angiogenesis, growth and metastasis. MicroRNAs (miRNAs) have been demonstrated to act as negative regulators of post-transcriptional gene expression and are involved in tumour growth and metastasis...
February 13, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29434223/phylogenetic-and-environmental-components-of-inter-specific-variability-in-the-antioxidant-defense-system-in-freshwater-anomurans-aegla-crustacea-decapoda
#15
Samuel Coelho Faria, Roberta Daniele Klein, Patrícia Gomes Costa, Marcelo Schüler Crivellaro, Sandro Santos, Sérgio Luiz de Siqueira Bueno, Adalto Bianchini
The antioxidant defense system (ADS) protects organisms against the potential oxidative stress induced by environmental features, underlying processes of habitat diversification. The anomurans Aegla constitute the most threatened freshwater decapods of South America, occupying pristine habitats with narrow distribution. Using phylogenetic comparative methods, we addressed: Is the variability of habitat physicochemical parameters and tissue ADS phylogenetically structured? How do environmental features correlate with ADS? How do they vary among species? Several physicochemical parameters of water, as well as metals in sediments, were measured in ten aeglid species' habitats...
February 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29433967/role-of-myocardial-collagen-degradation-and-fibrosis-in-right-ventricle-dysfunction-in-transposition-of-the-great-arteries-after-atrial-switch
#16
Magalie Ladouceur, Stephanie Baron, Valérie Nivet-Antoine, Gérard Maruani, Gilles Soulat, Helena Pereira, Anne Blanchard, Pierre Boutouyrie, Jean Louis Paul, Elie Mousseaux
BACKGROUND: Heart failure is a serious event in patients with transposition of the great arteries (D-TGA) after atrial redirection surgery. We aimed to determine the association between myocardial fibrosis and systolic and diastolic systemic right ventricle (sRV) dysfunction. METHODS: Diastolic and systolic function of sRV was prospectively assessed using echocardiography and cardiac magnetic resonance imaging (CMR) in 48 patients with atrially switched D-TGA and 26 healthy subjects...
January 31, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29433422/the-effect-of-noise-exposure-on-insulin-sensitivity-in-mice-may-be-mediated-by-the-jnk-irs1-pathway
#17
Lijie Liu, Cong Fang, Jing Yang, Hongyu Zhang, Yi Huang, Chuanying Xuan, Yongfang Wang, Shengwei Li, Jun Sha, Mingming Zha, Min Guo
BACKGROUND: Epidemiological studies have suggested that noise exposure may increase the risk of type 2 diabetes mellitus (T2DM), and experimental studies have demonstrated that noise exposure can induce insulin resistance in rodents. The aim of the present study was to explore noise-induced processes underlying impaired insulin sensitivity in mice. METHODS: Male ICR mice were randomly divided into four groups: a control group without noise exposure and three noise groups exposed to white noise at a 95-dB sound pressure level for 4 h/day for 1, 10, or 20 days (N1D, N10D, and N20D, respectively)...
February 12, 2018: Environmental Health and Preventive Medicine
https://www.readbyqxmd.com/read/29433082/acute-exposure-to-chlorpyrifos-induces-reversible-changes-in-health-parameters-of-nile-tilapia-oreochromis-niloticus
#18
Eman Zahran, Engy Risha, Walaa Awadin, Dušan Palić
Chlorpyrifos (CPF) is one of the most common insecticides found in freshwater ecosystems, and has been detected in agricultural and fishery products worldwide. This study focused on comprehensive panel of hematological, immunotoxic and pathology changes in Nile tilapia (Oreochromis niloticus) during and after exposure to CPF at 15 μg/L (0.043 μM) (1/10 LC50, group CPF1), or 75 μg/L (0.21 μM) (1/2 LC50, group CPF2) for 14 days, followed by 2 weeks recovery. Different endpoints were used to determine effects of CPF on fish health: hematological parameters; antioxidant levels in liver and gills; innate immune parameters; expression levels of pro-inflammatory cytokine genes at mRNA level in anterior kidney and spleen; and histopathological assessment of gills, liver, and kidney tissues...
February 6, 2018: Aquatic Toxicology
https://www.readbyqxmd.com/read/29430928/luminescent-device-for-detection-of-oxidative-stress-biomarker-in-artificial-urine
#19
Gopal Ammanath, Umit Hakan Yildiz, Alagappan Palaniappan, Bo Liedberg
A luminescent paper device for visual detection of oxidative stress biomarker is reported. The assay platform consists of a polyvinylidene fluoride (PVDF) membrane impregnated with poly(3-alkoxy-4-methylthiophene) (PT) for colorimetric sensing. 8-hydroxy-2'-deoxyguanosine (8-OHdG), a biomarker associated with oxidative stress, is used as a model system for validating the proposed methodology. The sensing strategy is based on monitoring the changes in optical properties of PT associated with its conformational changes upon interaction with an aptamer in the presence and in the absence of 8-OHdG...
February 12, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29428401/exposure-to-an-obesogenic-diet-during-adolescence-leads-to-abnormal-maturation-of-neural-and-behavioral-substrates-underpinning-fear-and-anxiety
#20
Julio David Vega-Torres, Elizabeth Haddad, Jeong Bin Lee, Priya Kalyan-Masih, Wanda I Maldonado George, Leonardo López Pérez, Darla M Piñero Vázquez, Yaría Arroyo Torres, José M Santiago Santana, Andre Obenaus, Johnny D Figueroa
BACKGROUND: Post-traumatic stress disorder (PTSD) and obesity are highly prevalent in adolescents. Emerging findings from our laboratory and others are consistent with the novel hypothesis that obese individuals may be predisposed to developing PTSD. Given that aberrant fear responses are pivotal in the pathogenesis of PTSD, the objective of this study was to determine the impact of an obesogenic Western-like high-fat diet (WD) on neural substrates associated with fear. METHODS: Adolescent Lewis rats (n = 72) were fed with either the experimental WD (41...
February 8, 2018: Brain, Behavior, and Immunity
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