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https://www.readbyqxmd.com/read/28427089/editor-s-highlight-exposure-to-crvi-during-early-pregnancy-increases-oxidative-stress-and-disrupts-the-expression-of-antioxidant-proteins-in-placental-compartments
#1
Sakhila K Banu, Jone A Stanley, Kirthiram K Sivakumar, Robert J Taylor, Joe A Arosh, Robert C Burghardt
Epidemiologic studies document relationships between chromium VI (CrVI) exposure and increased risk of spontaneous abortion, stillbirth, preterm birth, and neonatal death in pregnant women. Environmental contamination with CrVI is a growing problem both in the United States and developing countries. CrVI is widely used in numerous industries. This study was designed to understand the mechanism of CrVI toxicity on placental oxidative stress and antioxidant (AOX) machinery. Pregnant mother rats were treated with or without CrVI (50 ppm K2Cr2O7) through drinking water from gestational day (GD) 9...
February 1, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28426854/elevated-baseline-c-reactive-protein-as-a-predictor-of-outcome-after-aneurysmal-subarachnoid-hemorrhage-data-from-the-simvastatin-in-aneurysmal-subarachnoid-hemorrhage-stash-trial-erratum
#2
https://www.readbyqxmd.com/read/28426829/joint-genetic-analysis-using-variant-sets-reveals-polygenic-gene-context-interactions
#3
Francesco Paolo Casale, Danilo Horta, Barbara Rakitsch, Oliver Stegle
Joint genetic models for multiple traits have helped to enhance association analyses. Most existing multi-trait models have been designed to increase power for detecting associations, whereas the analysis of interactions has received considerably less attention. Here, we propose iSet, a method based on linear mixed models to test for interactions between sets of variants and environmental states or other contexts. Our model generalizes previous interaction tests and in particular provides a test for local differences in the genetic architecture between contexts...
April 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28426788/association-between-hemoglobin-glycation-index-with-insulin-resistance-and-carotid-atherosclerosis-in-non-diabetic-individuals
#4
Maria Adelaide Marini, Teresa Vanessa Fiorentino, Elena Succurro, Elisabetta Pedace, Francesco Andreozzi, Angela Sciacqua, Francesco Perticone, Giorgio Sesti
Hemoglobin glycation index (HGI), defined as the difference between the observed HbA1c value and the value of HbA1c predicted from plasma glucose levels, represents a measure of the degree of non-enzymatic glycation of hemoglobin and it has been found to be positively associated with micro- and macro-vascular complications in subjects with type 2 diabetes. To investigate the pathophysiological abnormalities responsible for the increased cardiovascular risk of patients with higher HGI, we evaluated the association of HGI with cardio-metabolic characteristics in nondiabetic offspring of type 2 diabetic individuals...
2017: PloS One
https://www.readbyqxmd.com/read/28426080/c-reactive-protein-and-interleukin-6-microfluidic-immunoassays-with-on-chip-pre-stored-reagents-and-centrifugo-pneumatic-liquid-control
#5
Y Zhao, G Czilwik, V Klein, K Mitsakakis, R Zengerle, N Paust
We present a fully automated centrifugal microfluidic method for particle based protein immunoassays. Stick-pack technology is employed for pre-storage and release of liquid reagents. Quantitative layout of centrifugo-pneumatic particle handling, including timed valving, switching and pumping is assisted by network simulations. The automation is exclusively controlled by the spinning frequency and does not require any additional means. New centrifugal microfluidic process chains are developed in order to sequentially supply wash buffer based on frequency dependent stick-pack opening and pneumatic pumping to perform two washing steps from one stored wash buffer; pre-store and re-suspend functionalized microparticles on a disk; and switch between the path of the waste fluid and the path of the substrate reaction product with 100% efficiency...
April 20, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28425837/calprotectin-levels-in-rheumatoid-arthritis-and-their-correlation-with-disease-activity-a-meta-analysis
#6
Sang-Cheol Bae, Young Ho Lee
OBJECTIVE: We evaluated the relationship between calprotectin levels and rheumatoid arthritis (RA), and the correlation between plasma/serum calprotectin and RA activity. METHODS: We searched PUBMED, EMBASE, and Cochrane databases and performed meta-analyses comparing plasma/serum or synovial fluid calprotectin levels in RA patients and controls, and correlation coefficients between calprotectin levels and disease activity for 28 joints (DAS28) as well as C-reactive protein (CRP) in RA patients...
April 20, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/28425575/high-dose-supplementation-of-vitamin-d-affects-measures-of-systemic-inflammation-reductions-in-high-sensitivity-c-reactive-protein-level-and-neutrophil-to-lymphocyte-ratio-nlr-distribution
#7
Seyed-Amir Tabatabaeizadeh, Amir Avan, Afsane Bahrami, Ezzat Khodashenas, Habibollah Esmaeili, Gordon A Ferns, Mojtaba Fattahi Abdizadeh, Majid Ghayour-Mobarhan
BACKGROUND: The prevalence of Vitamin D deficiency is increasing worldwide, which has be shown to be associated with increased risk of cardiovascular disease (CVD), autoimmune disease and metabolic syndrome. These conditions are also associated with a heightened state of inflammation. The aim of the current study was to evaluate the effect of vitamin D supplementation on serum C - reactive protein (CRP) level and Neutrophil-to-lymphocyte ratio (NLR) distribution in a large cohort of adolescent girls...
April 20, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28425050/oxidative-protein-modification-alters-proteostasis-under-acute-hypobaric-hypoxia-in-skeletal-muscles-a-comprehensive-in-vivo-study
#8
Akanksha Agrawal, Richa Rathor, Geetha Suryakumar
While numerous maladies are associated with hypobaric hypoxia, muscle protein loss is an important under studied topic. Hence, the present study was designed to investigate the mechanism of muscle protein loss at HH. SD rats were divided into normoxic rats, while remaining rats were exposed to simulated hypoxia equivalent to 282-torr pressure (equal to an altitude of 7620 m, 8% oxygen), at 25 °C for 6, 12, and 24 h. Post-exposure rats were sacrificed and analysis was performed. Ergo, muscle loss-related changes were observed at 12 and 24 h post-HH exposure...
April 19, 2017: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/28425045/soluble-triggering-receptor-expressed-on-myeloid-cell-1-strem-1-a-potential-biomarker-for-the-diagnosis-of-infectious-diseases
#9
REVIEW
Changlin Cao, Jingxian Gu, Jingyao Zhang
Sensitive and useful biomarkers for the diagnosis and prognosis of infectious diseases have been widely developed. An example of these biomarkers is triggering receptor expressed on myeloid cell-1 (TREM-1), which is a cell surface receptor expressed on monocytes/macrophages and neutrophils. TREM-1 amplifies inflammation by activating the TREM-1/DAP12 pathway. This pathway is triggered by the interaction of TREM-1 with ligands or stimulation by bacterial lipopolysaccharide. Consequently, pro-inflammatory cytokines and chemokines are secreted...
April 19, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/28424616/whole-blood-cytokine-response-to-local-traffic-related-particulate-matter-in-peruvian-children-with-and-without-asthma
#10
Jesse P Negherbon, Karina Romero, D'Ann L Williams, Rafael E Guerrero-Preston, Thomas Hartung, Alan L Scott, Patrick N Breysse, William Checkley, Nadia N Hansel
This study sought to investigate if acute phase immune responses of whole blood from Peruvian children with controlled and uncontrolled asthma differed from children without asthma, following exposure to traffic-related particulate matter (TRPM). TRPM, including particulate matter from diesel combustion, has been shown to stimulate acute airway inflammation in individuals with and without asthma. For this study, a whole blood assay (WBA) was used to test peripheral whole blood samples from 27 children with asthma, and 12 without asthma...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28424258/serum-hepcidin-concentrations-decline-during-pregnancy-and-may-identify-iron-deficiency-analysis-of-a-longitudinal-pregnancy-cohort-in-the-gambia
#11
Amat Bah, Sant-Rayn Pasricha, Momodou W Jallow, Ebrima A Sise, Rita Wegmuller, Andrew E Armitage, Hal Drakesmith, Sophie E Moore, Andrew M Prentice
Background: Antenatal anemia is a risk factor for adverse maternal and fetal outcomes and is prevalent in sub-Saharan Africa. Less than half of antenatal anemia is considered responsive to iron; identifying women in need of iron may help target interventions. Iron absorption is governed by the iron-regulatory hormone hepcidin.Objective: We sought to characterize changes in hepcidin and its associations with indexes of iron stores, erythropoiesis, and inflammation at weeks 14, 20, and 30 of gestation and to assess hepcidin's diagnostic potential as an index of iron deficiency...
April 19, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28424257/an-animal-source-food-supplement-increases-micronutrient-intakes-and-iron-status-among-reproductive-age-women-in-rural-vietnam
#12
Andrew G Hall, Tu Ngu, Hoang T Nga, Phi N Quyen, Pham T Hong Anh, Janet C King
Background: Few studies have examined the impact of local animal-source foods (ASFs) on the nutritional status of reproductive-age women in developing countries.Objective: We hypothesized that a midmorning snack of local ASF for 6 mo would reduce dietary micronutrient deficiencies [usual intake less than the estimated average requirement (EAR)] and improve blood biomarkers of iron, zinc, and vitamins A and B-12 status among nonpregnant, reproductive-age women in rural Vietnam.Methods: One hundred seventeen women, 18-30 y old, were randomly assigned to receive either an ASF (mean: 144 kcal, 8...
April 19, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28423703/artocarpin-an-isoprenyl-flavonoid-induces-p53-dependent-or-independent-apoptosis-via-ros-mediated-mapks-and-akt-activation-in-non-small-cell-lung-cancer-cells
#13
Ming-Horng Tsai, Ju-Fang Liu, Yao-Chang Chiang, Stephen Chu-Sung Hu, Lee-Fen Hsu, Yu-Ching Lin, Zih-Chan Lin, Hui-Chun Lee, Mei-Chuan Chen, Chieh-Liang Huang, Chiang-Wen Lee
Artocarpin has been shown to exhibit cytotoxic effects on different cancer cells, including non-small cell lung carcinoma (NSCLC, A549). However, the underlying mechanisms remain unclear. Here, we explore both p53-dependent and independent apoptosis pathways in artocarpin-treated NSCLC cells. Our results showed that artocarpin rapidly induced activation of cellular protein kinases including Erk1/2, p38 and AktS473. Inhibition of these protein kinases prevented artocarpin-induced cell death. Moreover, artocarpin-induced phosphorylation of these protein kinases and apoptosis were mediated by induction of reactive oxygen species (ROS), as pretreatment with NAC (a ROS scavenger) and Apocynin (a Nox-2 inhibitor) blocked these events...
March 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28423553/low-vitamin-d-status-is-associated-with-inflammation-in-patients-with-prostate-cancer
#14
Dong-Dong Xie, Yuan-Hua Chen, Shen Xu, Cheng Zhang, Da-Ming Wang, Hua Wang, Lei Chen, Zhi-Hui Zhang, Mi-Zhen Xia, De-Xiang Xu, De-Xin Yu
Vitamin D deficiency has been associated with increased risks of prostate cancer. Nevertheless, the mechanisms remain unclear. The aim of this study was to analyze the association among prostate cancer, vitamin D status and inflammation. Sixty patients with newly diagnosed prostate cancer and 120 age-matched controls were recruited for this study. Vitamin D status was evaluated and serum inflammatory molecules were measured. Serum 25-(OH)D was lower in patients with prostate cancer. Moreover, serum 25(OH)D was lower in patients with severe prostate cancer than patients with mild and moderate prostate cancer...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422861/does-long-term-efficacy-differ-between-infliximab-and-adalimumab-after-1-year-of-continuous-administration-a-strobe-compliant-retrospective-cohort-study
#15
Haruka Otake, Satohiro Matsumoto, Hirosato Mashima
Although biologics are important inflammatory bowel disease therapies, loss of response (LOR) remains problematic. We evaluated LOR to biologics in our Crohn disease (CD) patients receiving biologics. Of 137 biologic-treated CD patients, 68 continuously receiving the same biologic type for at least 1 year were divided into 2 groups: infliximab (IFX) (n = 39) and adalimumab (ADA) (n = 29). Clinical courses were compared at biologic introduction and at 1 year. Both groups were retrospectively analyzed for LOR at and beyond 1 year after biologic introduction (study endpoint)...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28422187/a-sphingosine-1-phosphate-receptor-1-agonist-inhibits-tertiary-lymphoid-tissue-reactivation-and-hypersensitivity-in-the-lung
#16
C A Huppé, P Blais Lecours, A Lechasseur, D R Gendron, A M Lemay, E Y Bissonnette, M R Blanchet, C Duchaine, M C Morissette, H Rosen, D Marsolais
Hypersensitivity pneumonitis is characterized by pulmonary accumulation of B-cell-rich tertiary lymphoid tissues (TLTs), which are alleged sites of amplification for antigen-specific responses. The sphingosine-1-phosphate receptor 1 (S1P1) regulates key mechanisms underlying lymphoid tissue biology and its chemical modulation causes lymphocyte retention in lymph nodes. Given the putative immunopathogenic impact of lymphocyte accumulation in TLTs, we investigated whether or not chemical modulation of S1P1 caused lymphocyte retention within TLTs in a model of hypersensitivity pneumonitis...
April 19, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28422069/protein-stability-and-unfolding-following-glycine-radical-formation
#17
Michael C Owen, Imre G Csizmadia, Béla Viskolcz, Birgit Strodel
Glycine (Gly) residues are particularly susceptible to hydrogen abstraction; which results in the formation of the capto-dative stabilized Cα-centered Gly radical (GLR) on the protein backbone. We examined the effect of GLR formation on the structure of the Trp cage; tryptophan zipper; and the villin headpiece; three fast-folding and stable miniproteins; using all-atom (OPLS-AA) molecular dynamics simulations. Radicalization changes the conformation of the GLR residue and affects both neighboring residues but did not affect the stability of the Trp zipper...
April 19, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28421814/elevated-monocyte-to-high-density-lipoprotein-cholesterol-ratio-and-endothelial-dysfunction-in-beh%C3%A3-et-disease
#18
Nusret Acikgoz, Ertuğrul Kurtoğlu, Julide Yagmur, Yelda Kapicioglu, Mehmet Cansel, Necip Ermis
Behçet disease (BD) is a multisystemic disorder characterized by endothelial dysfunction and inflammation. Monocyte to high-density lipoprotein cholesterol ratio (MHR) is a recently emerged indicator of inflammation and oxidative stress. Sixty patients with BD and 50 control individuals were included to investigate the relationship between MHR and endothelial dysfunction. Endothelial function was assessed by flow- and nitroglycerin-mediated dilatation technique (FMD and NMD, respectively). Serum high-sensitivity C-reactive protein (hsCRP) levels were measured in all study participants...
January 1, 2017: Angiology
https://www.readbyqxmd.com/read/28421792/micronutrient-supplementation-in-gastric-bypass-surgery-prospective-study-on-in%C3%AF-ammation-and-iron-metabolism-in-premenopausal-women
#19
Flávia Andréia Marin, Rozangela Verlengia, Alex Harley Crisp, Patrícia Fátima Sousa Novais, Irineu Rasera-Junior, Maria Rita Marques De Oliveira
BACKGROUND: Low-grade chronic inflammation in morbid obesity is associated with impaired iron metabolism. Bariatric surgery is effective in weight loss; however, it can induce specific nutritional deficiencies, such as iron, especially in premenopausal women. Alternatively, after surgery, there is an improvement in systemic inflammation, raising questions concerning the dosages of micronutrient supplementation. OBJECTIVES: This study aimed to assess the effect of two micronutrient supplementation schemes before and 6 months after a Roux-en-Y gastric bypass (RYGB) surgery on inflammation and iron metabolism in premenopausal women...
March 30, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28421731/intraoperative-dexmedetomidine-sedation-reduces-the-postoperative-agitated-behaviour-in-elderly-patients-undergoing-orthopaedic-surgery-compared-to-the-propofol-sedation-a-retrospective-analysis-of-855-patients
#20
Hyun-Jung Shin, Bon-Wook Koo, Seung-Uk Bang, Jin-Hee Kim, Jung-Won Hwang, Sang-Hwan DO, Hyo-Seok Na
BACKGROUND: Postoperative agitation or confusion is one of the symptoms of hyperactive delirium in elderly patients. We retrospectively evaluated the incidence of postoperative abnormal psychomotor behaviour in elderly surgical patients according to the use of different intraoperative sedative agents: dexmedetomidine vs. propofol. METHODS: The medical records of 855 elderly patients, who underwent orthopaedic surgery with regional anaesthesia between July 2012 and September 2015, were divided into two groups-the dexmedetomidine group (n=263) and the propofol group (n=592)-and evaluated...
April 19, 2017: Minerva Anestesiologica
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