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https://www.readbyqxmd.com/read/28346906/long-term-exposure-to-high-air-pollution-induces-cumulative-dna-damages-in-traffic-policemen
#1
Chaochao Tan, Shijie Lu, Yupeng Wang, Yan Zhu, Ting Shi, Mingyue Lin, Zhonghua Deng, Zhu Wang, Nana Song, Shuna Li, Pingting Yang, Liyan Yang, Yuanyuan Liu, Zhiheng Chen, Keqian Xu
The specific effects of long-term exposure to high air pollution on human health and biological remain unclear. To explore the adverse health effects as well as biological mechanisms and biomarkers for durative exposure to air pollution, 183 traffic policemen and 88 office policemen were enrolled in this study. The concentration of PM2.5 in both the traffic and office policemen's working environments were obtained. Detailed personal questionnaires were completed and levels of inflammation, oxidative stress and DNA damage markers of all participants were analyzed in this study...
March 24, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28346888/oxidative-and-nitrosative-stress-biomarkers-in-chronic-schizophrenia
#2
Karine Maria Boll, Cristiano Noto, Kamila Landucci Bonifácio, Chiara Cristina Bortolasci, Ary Gadelha, Rodrigo Affonseca Bressan, Décio Sabbatini Barbosa, Michael Maes, Estefania Gastaldello Moreira
There is evidence that the acute phase of schizophrenia (SCZ) is accompanied by specific changes in oxidative and nitrosative stress (O&NS) biomarkers. There are, however, no firm data regarding these biomarkers in chronic SCZ. Therefore, this study aimed to delineate O&NS biomarkers in patients with chronic SCZ. 125 outpatients with SCZ and 118 controls were enrolled. The markers included lipid hydroperoxides (LOOH), advanced oxidation protein products (AOPP), nitric oxide metabolites (NOx), total radical-trapping antioxidant parameter (TRAP) and paraoxonase 1 (PON-1) activity...
March 21, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28346887/high-resolution-mass-spectrometry-as-an-alternative-detection-method-to-tandem-mass-spectrometry-for-the-analysis-of-endogenous-steroids-in-serum
#3
Federico Ponzetto, Julien Boccard, Norbert Baume, Tiia Kuuranne, Serge Rudaz, Martial Saugy, Raul Nicoli
Recently, steroid hormones quantification in blood showed a promising ability to detect testosterone doping and interesting complementarities with the urinary module of the Athlete Biological Passport (ABP). In this work, an ultra-high pressure liquid chromatography-high-resolution mass spectrometry (UHPLC-HRMS) method was developed for the quantification of eleven endogenous steroids in serum. The performance of the full scan and targeted SIM acquisition modes was evaluated and compared to the performance of tandem mass spectrometry (MS/MS)...
March 18, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28346858/circulating-soluble-il-6-receptor-concentration-and-visceral-adipocyte-size-are-related-to-insulin-resistance-in-taiwanese-adults-with-morbid-obesity
#4
Feng-Chih Kuo, Ya-Hsien Huang, Fu-Huang Lin, Yi-Jen Hung, Chang-Hsun Hsieh, Chieh-Hua Lu, Sheng-Chiang Su, Chia-Luen Huang, Chien-Hsing Lee, Nain-Feng Chu
BACKGROUND: Morbid obesity is related to chronic inflammation and many metabolic complications. Interleukin (IL)-6 plays a pivotal pathophysiological role in obesity, and IL-6 trans-signaling through the soluble IL-6 receptor (sIL-6R) has a major proinflammatory effect. The aim of this study was to investigate the association between sIL-6R, adipocyte size, and insulin resistance in morbidly obese individuals. METHODS: We measured concentrations of sIL-6R, high-sensitivity C-reactive protein, and lipid parameters and estimated homeostasis model assessment of insulin resistance (HOMA-IR) before the patients underwent bariatric surgery...
March 27, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28346746/simultaneous-determination-of-4-hydroxyphenyl-lactic-acid-4-hydroxyphenyl-acetic-acid-and-3-4-hydroxyphenyl-propionic-acid-in-human-urine-by-ultra-high-performance-liquid-chromatography-with-fluorescence-detection
#5
Yongli Yang, Fan Liu, Yiqun Wan
A simple and reliable method was established for simultaneous determination of 4-hydroxyphenyl acetic acid, 4-hydroxyphenyl lactic acid, and 3-4-hydroxyphenyl propionic acid in human urine by high-performance liquid chromatography with fluorescence detection. Solid-phase extraction was used to eliminate the interferences in urine. The separation of three analytes was achieved using a C18 column and a mobile phase formed by a 95:5 v/v mixture of 50 mmol/L ammonium acetate buffer at pH 6.8 that contained 5 mmol/L tetrabutyl ammonium bromide and acetonitrile...
March 27, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28346588/association-between-childhood-onset-epilepsy-and-amyloid-burden-5-decades-later
#6
Juho Joutsa, Juha O Rinne, Bruce Hermann, Mira Karrasch, Anu Anttinen, Shlomo Shinnar, Matti Sillanpää
Importance: The effect of childhood epilepsy on later-life cognitive and brain health is an unclear and little-explored issue. Objective: To determine whether adults with a history of childhood-onset epilepsy exhibit increased brain amyloid accumulation, possibly predisposing to accelerated cognitive impairment or even frank cognitive disorders in later life. Design, Setting, and Participants: Forty-one adults from a population-based cohort of individuals with childhood-onset epilepsy in southwestern Finland, together with 46 matched population-based controls, underwent amyloid ligand carbon 11-labeled Pittsburgh Compound B (PiB) positron emission tomography after long-term prospective follow-up...
March 27, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28346578/association-of-plasma-neurofilament-light-with-neurodegeneration-in-patients-with-alzheimer-disease
#7
Niklas Mattsson, Ulf Andreasson, Henrik Zetterberg, Kaj Blennow
Importance: Existing cerebrospinal fluid (CSF) or imaging (tau positron emission tomography) biomarkers for Alzheimer disease (AD) are invasive or expensive. Biomarkers based on standard blood test results would be useful in research, drug development, and clinical practice. Plasma neurofilament light (NFL) has recently been proposed as a blood-based biomarker for neurodegeneration in dementias. Objective: To test whether plasma NFL concentrations are increased in AD and associated with cognitive decline, other AD biomarkers, and imaging evidence of neurodegeneration...
March 27, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28346561/reduced-intestinal-motility-mucosal-barrier-function-and-inflammation-in-aged-monkeys
#8
E L Mitchell, A T Davis, K Brass, M Dendinger, R Barner, R Gharaibeh, A A Fodor, K Kavanagh
OBJECTIVE: We aimed to examine the general health and intestinal physiology of young and old non-human primates with comparable life histories and dietary environments. DESIGN: Vervet monkeys (Chlorcebus aethiops sabaeus) in stable and comparable social and nutritional environments were selected for evaluation. Health phenotype, circulating cytokines and biomarkers of microbial translocation (MT) were measured (n=26-44). Subsets of monkeys additionally had their intestinal motility, intestinal permeability, and fecal microbiomes characterized...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/28346513/cystatin-c-estimated-glomerular-filtration-rate-to-assess-renal-function-in-early-stages-of-autosomal-dominant-polycystic-kidney-disease
#9
Laia Sans, Aleksandar Radosevic, Claudia Quintian, Rosario Montañés, Silvia Gràcia, Carles Vilaplana, Sergi Mojal, José A Ballarin, Patricia Fernández-Llama, Roser Torra, Julio Pascual
BACKGROUND/AIMS: Height-adjusted total kidney volume (htTKV) is the best marker of disease progression in early autosomal dominant polycystic kidney disease (ADPKD) when renal function still remains normal. The usefulness of cystatin-C as a biomarker to assess renal function according to renal volume has not been studied in ADPKD patients. METHODS: Observational and cross-sectional study of 62 ADPKD patients. htTKV, creatinine and cystatin-C estimated glomerular filtration rate (eGFR) were determined...
2017: PloS One
https://www.readbyqxmd.com/read/28346506/specific-expression-of-novel-long-non-coding-rnas-in-high-hyperdiploid-childhood-acute-lymphoblastic-leukemia
#10
Mathieu Lajoie, Simon Drouin, Maxime Caron, Pascal St-Onge, Manon Ouimet, Romain Gioia, Marie-Hélène Lafond, Ramon Vidal, Chantal Richer, Karim Oualkacha, Arnaud Droit, Daniel Sinnett
Pre-B cell childhood acute lymphoblastic leukemia (pre-B cALL) is a heterogeneous disease involving many subtypes typically stratified using a combination of cytogenetic and molecular-based assays. These methods, although widely used, rely on the presence of known chromosomal translocations, which is a limiting factor. There is therefore a need for robust, sensitive, and specific molecular biomarkers unaffected by such limitations that would allow better risk stratification and consequently better clinical outcome...
2017: PloS One
https://www.readbyqxmd.com/read/28346469/computational-identifying-and-characterizing-circular-rnas-and-their-associated-genes-in-hepatocellular-carcinoma
#11
Yan Li, Yongcheng Dong, Ziyan Huang, Qifan Kuang, Yiming Wu, Yizhou Li, Menglong Li
Hepatocellular carcinoma (HCC) is currently still a major factor leading to death, lacking of reliable biomarkers. Therefore, deep understanding the pathogenesis for HCC is of great importance. The emergence of circular RNA (circRNA) provides a new way to study the pathogenesis of human disease. Here, we employed the prediction tool to identify circRNAs based on RNA-seq data. Then, to investigate the biological function of the circRNA, the candidate circRNAs were associated with the protein-coding genes (PCGs) by GREAT...
2017: PloS One
https://www.readbyqxmd.com/read/28346363/rapid-and-low-cost-crp-measurement-by-integrating-a-paper-based-microfluidic-immunoassay-with-smartphone-crp-chip
#12
Meili Dong, Jiandong Wu, Zimin Ma, Hagit Peretz-Soroka, Michael Zhang, Paul Komenda, Navdeep Tangri, Yong Liu, Claudio Rigatto, Francis Lin
Traditional diagnostic tests for chronic diseases are expensive and require a specialized laboratory, therefore limiting their use for point-of-care (PoC) testing. To address this gap, we developed a method for rapid and low-cost C-reactive protein (CRP) detection from blood by integrating a paper-based microfluidic immunoassay with a smartphone (CRP-Chip). We chose CRP for this initial development because it is a strong biomarker of prognosis in chronic heart and kidney disease. The microfluidic immunoassay is realized by lateral flow and gold nanoparticle-based colorimetric detection of the target protein...
March 26, 2017: Sensors
https://www.readbyqxmd.com/read/28346362/nutrition-assessment-of-b-vitamins-in-highly-active-and-sedentary-women
#13
Kathleen Woolf, Nicole L Hahn, Megan M Christensen, Amanda Carlson-Phillips, Christine M Hansen
BACKGROUND: Female athletes and active women require adequate nutrition for optimal health and performance. Nutrition assessments are needed to identify potential nutrients of concern. Folate, vitamin B6, and vitamin B12 function in important pathways used during physical activity and female athletes may be at risk for poor status of these micronutrients. This cross-sectional study described a comprehensive nutrition assessment of the B-vitamins (folate, vitamin B6, and vitamin B12) using both dietary (food and dietary supplements) and biochemical assessments among highly active and sedentary women...
March 26, 2017: Nutrients
https://www.readbyqxmd.com/read/28346336/enzymatic-processes-in-marine-biotechnology
#14
REVIEW
Antonio Trincone
In previous review articles the attention of the biocatalytically oriented scientific community towards the marine environment as a source of biocatalysts focused on the habitat-related properties of marine enzymes. Updates have already appeared in the literature, including marine examples of oxidoreductases, hydrolases, transferases, isomerases, ligases, and lyases ready for food and pharmaceutical applications. Here a new approach for searching the literature and presenting a more refined analysis is adopted with respect to previous surveys, centering the attention on the enzymatic process rather than on a single novel activity...
March 25, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28346098/filter-plate-based-screening-of-mip-spe-materials-for-capture-of-the-biomarker-pro-gastrin-releasing-peptide
#15
Kishore Kumar Jagadeesan, Cecilia Rossetti, Abed Abdel Qader, Léon Reubsaet, Börje Sellergren, Thomas Laurell, Simon Ekström
Affinity-based solid-phase extraction (SPE) is an attractive low-cost sample preparation strategy for biomarker analysis. Molecularly imprinted polymers (MIPs) as affinity sorbents offer unique opportunities for affinity SPE, due to their low manufacturing cost and high robustness. A limitation is the prediction of their affinity; therefore, screening of analyte recovery and specificity within a large range of SPE conditions is important in order to ensure high-sensitivity detection and assay reproducibility...
January 1, 2017: SLAS Discov
https://www.readbyqxmd.com/read/28345861/identification-of-gene-transcription-start-sites-and-enhancers-responding-to-pulmonary-carbon-nanotube-exposure-in-vivo
#16
Jette Bornholdt, Anne Thoustrup Saber, Berit Lilje, Mette Boyd, Mette Jørgensen, Yun Chen, Morana Vitezic, Nicklas Raun Jacobsen, Sarah Søs Poulsen, Trine Berthing, Simon Bressendorff, Kristoffer Vitting-Seerup, Robin Andersson, Karin Sørig Hougaard, Carole L Yauk, Sabina Halappanavar, Håkan Wallin, Ulla Vogel, Albin Sandelin
Increased use of nanomaterials in industry, medicine and consumer products has raised concerns over their toxicity. To ensure safe use of nanomaterials, understanding their biological effects at the molecular level is crucial. In particular, the regulatory mechanisms responsible for the cascade of genes activated by nanomaterial exposure are not well characterized. To this end, we profiled the genome-wide usage of gene transcription start sites and linked active enhancer regions in lungs of C57BL/6 mice 24h after intratracheal instillation of a single dose of the multiwalled carbon nanotube Mitsui-7...
March 27, 2017: ACS Nano
https://www.readbyqxmd.com/read/28345838/ercc1-expression-in-metastatic-triple-negative-breast-cancer-patients-treated-with-platinum-based-chemotherapy
#17
Mohamed Ali EL Baiomy, Wagdi F El Kashef
Background: Possible targeted therapies for metastatic triple negative breast cancer (TNBC) include cytotoxic chemotherapy that causes interstrand breaks (platinum-based drugs). The excision repair cross-complementation 1 (ERCC1) enzyme plays an essential role in the nucleotide excision repair pathway, removing platinum-induced DNA adducts and contributing to cisplatin resistance. Detecting ERCC1 overexpression is important in considering treatment options for metastatic TNBC, including individualized approaches to therapy, and may facilitate improved responses or reduction of unnecessary toxicity...
February 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28345820/meta-analysis-of-serum-gastrin-releasing-peptide-precursor-as-a-biomarker-for-diagnosis-of-small-cell-lung-cancer
#18
Shui Ping Lv, Yi Wang, Lang Huang, Fei Wang, Jian Guo Zhou, Hu Ma
Background: The serum level of gastrin-releasing peptide precursor (proGRP) is generally? elevated in patients with small cell lung cancer (SCLC). However, the diagnostic sensitivity and specificity of serum proGRP in SCLC cases remains controversial. The study aimed to assess the diagnostic value of this biomarker by meta-analysis. Materials and Methods: The Cochrane, Clinical trials, Pubmed, Web of Science and Embase databases were searched and diagnostic values were calculated or extracted. Statistical analysis was accomplished with RevMan 5...
February 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28345805/promoter-hypermethylation-mediated-downregulation-of-mir-770-and-its-host-gene-meg3-a-long-non-coding-rna-in-the-development-of-gastric-cardia-adenocarcinoma
#19
Wei Guo, Zhiming Dong, Shengnan Liu, Yiling Qiao, Gang Kuang, Yanli Guo, Supeng Shen, Jia Liang
Maternally expressed gene 3 (MEG3) is an imprinted gene located at 14q32 which encodes an lncRNA and is downregulated in an expanding list of cancer cell lines and primary human cancers. The miR-770 is transcribed from the intronic sequence of MEG3 and MEG3 may be the host gene for miR-770. However, the biological role of MEG3 and miR-770 in gastric cardia adenocarcinoma (GCA) development and prognosis is poorly defined. The present study was to investigate the function and methylation status of MEG3 in GCA, and further to detect the functional association of miR-770 and its host gene MEG3 in GCA carcinogenesis and prognosis...
March 27, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28345781/apoptotic-pathways-of-macrophages-within-osteolytic-interface-membrane-in-periprosthestic-osteolysis-after-total-hip-replacement
#20
Guoyin Liu, Ting Guo, Yong Zhang, Naicheng Liu, Jiangning Chen, Jianmin Chen, Junfeng Zhang, Jianning Zhao
Macrophage apoptosis in interface membrane, which occurs through either death receptor, mitochondrion, or endoplasmic reticulum (ER) stress pathways, has been suggested to play an important role in promoting osteolysis. However, how and why macrophage apoptosis originates and the correlation among these apoptotic pathways is not yet clear. The objective of this study was to identify the apoptotic mechanism of macrophages, and to explore the relationship between the apoptotic pathways and progression of osteolysis...
March 27, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
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