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https://www.readbyqxmd.com/read/28441837/-characteristics-of-pre-gestational-diabetes-mellitus-diagnosed-during-pregnancy-and-the-effects-on-pregnancy-outcomes
#1
Y M Wei, H X Yang
Objective: To analyze the characteristics of pre-gestational diabetes mellitus (PGDM) diagnosed during pregnancy (missed diagnosis before pregnancy), and to evaluate the effects of diagnostic time on pregnancy outcomes. Methods: A retrospective study of 746 pregnant women who were diagnosed PGDM and delivered in Peking University First Hospital from January 1st, 2005 to December 31st, 2015 was conducted. The patients were divided into 2 group. Those diagnosed PGDM before pregnancy were defined as Group diagnosed before pregnancy, and those diagnosed during pregnancy were defined as Group diagnosed during pregnancy...
April 25, 2017: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/28441747/associations-between-diet-and-toenail-arsenic-concentration-among-pregnant-women-in-bangladesh-a-prospective-study
#2
Pi-I D Lin, Sabri Bromage, Md Golam Mostofa, Joseph Allen, Emily Oken, Molly L Kile, David C Christiani
This prospective study evaluated the relationship between long-term dietary habits and total arsenic (As) concentration in toenail clippings in a cohort of 1616 pregnant women in the Bangladeshi administrative regions of Sirajdikhan and Pabna Sadar. Diet was assessed at Gestation Week 28 and at Postpartum Month 1, using a locally-validated dish-based semi-quantitative food-frequency questionnaire. Toenail As concentration was analyzed by microwave-assisted acid digestion and inductively coupled plasma mass spectrometry...
April 23, 2017: Nutrients
https://www.readbyqxmd.com/read/28441695/increased-high-risk-coronary-plaque-burden-is-associated-with-arterial-stiffness-in-patients-with-type-2-diabetes-without-clinical-signs-of-coronary-artery-disease-a-computed-tomography-angiography-study
#3
Kristian L Funck, Esben Laugesen, Kristian Øvrehus, Jesper M Jensen, Bjarne L Nørgaard, Damini Dey, Troels K Hansen, Per L Poulsen
OBJECTIVES: Arterial stiffness and subclinical coronary atherosclerosis may yield valuable information on cardiovascular risk. We aimed to characterize coronary atherosclerosis in asymptomatic patients with type 2 diabetes and healthy controls and to investigate the association between baseline arterial stiffness and coronary plaque volumes after 5-year follow-up. METHODS: Data from 45 patients and 61 matched controls were available for coronary plaque assessment...
June 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28441692/physiological-role-of-endothelin-1-in-flow-mediated-vasodilatation-in-humans-and-impact-of-cardiovascular-risk-factors
#4
Jérémy Bellien, Michèle Iacob, Christelle Monteil, Isabelle Rémy-Jouet, Clothilde Roche, Thomas Duflot, Cathy Vendeville, Laurence Gutierrez, Christian Thuillez, Vincent Richard, Robinson Joannidès
OBJECTIVES: The current study addressed the hypothesis that the local decrease in endothelin-1 (ET-1) bioavailability during sustained flow increases contributes to endothelium-dependent, flow-mediated dilatation (FMD) of conduit arteries and is altered in presence of cardiovascular risk factors. METHODS AND RESULTS: In nine young healthy individuals, the decrease in local ET-1 plasma levels and radial artery FMD in response to hand skin heating (from 34 to 44 °C) was not affected by endothelin type A (ETA) receptor blockade, achieved using the brachial infusion of BQ-123 (100 nmol/min per l of forearm), as compared with physiological saline (0...
June 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28441661/defective-platelet-activation-and-bleeding-complications-upon-cholestasis-in-mice
#5
Nina Sarah Gowert, Meike Klier, Maria Reich, Friedrich Reusswig, Lili Donner, Verena Keitel, Dieter Häussinger, Margitta Elvers
BACKGROUND/AIMS: Platelets are essential mediators of hemostasis to avoid excessive blood loss. Cirrhosis and chronic liver diseases are characterized by alterations in hemostasis. Alterations in the secondary hemostasis have been well studied, while defects in primary hemostasis, especially the consequences of cholestatic liver disease on platelet function are not well defined. METHODS: After bile duct ligation (BDL) platelet activation and thrombus formation were analyzed in mice...
April 20, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28441653/effect-of-topical-iloprost-and-nitroglycerin-on-gastric-microcirculation-and-barrier-function-during-hemorrhagic-shock-in-dogs
#6
Richard Truse, Jonas Hinterberg, Jan Schulz, Anna Herminghaus, Andreas Weber, Tabea Mettler-Altmann, Inge Bauer, Olaf Picker, Christian Vollmer
BACKGROUND: Topical drug application is used to avoid systemic side effects. The aim of this study was to analyze whether locally applied iloprost or nitroglycerin influence gastric mucosal perfusion, oxygenation, and barrier function during physiological and hemorrhagic conditions. METHODS: In repeated experiments, 5 anesthetized dogs received iloprost, nitroglycerin, or normal saline during physiological and hemorrhagic (-20% blood volume) conditions. Macro- and microcirculatory variables were recorded continuously...
April 26, 2017: Journal of Vascular Research
https://www.readbyqxmd.com/read/28441615/near-infrared-light-stimuli-responsive-synergistic-therapy-nanoplatforms-based-on-the-coordination-of-tellurium-containing-block-polymer-and-cisplatin-for-cancer-treatment
#7
Feng Li, Tianyu Li, Wei Cao, Lu Wang, Huaping Xu
Cisplatin (CDDP) has received worldwide approval for clinical use in the past decades. However, its development in cancer chemotherapy was overshadowed by severe side effects and drug resistance. Herein, we developed a CDDP drug delivery system with high encapsulation efficiency and near-infrared light stimuli-responsive drug release properties based on the coordination of novel tellurium-containing block polymer (PEG-PUTe-PEG) and CDDP. The nanocarriers made from PEG-PUTe-PEG were loaded with CDDP and indocyanine green (ICG) simultaneously...
April 17, 2017: Biomaterials
https://www.readbyqxmd.com/read/28441607/toxicity-assessment-of-zno-decorated-au-nanoparticles-in-the-mediterranean-clam-ruditapes-decussatus
#8
Badreddine Sellami, Amine Mezni, Abdelhafidh Khazri, Imen Bouzidi, Wiem Saidani, David Sheehan, Hamouda Beyrem
The synthesis of hybrid nanomaterials has greatly increased in recent years due to their special physical and chemical properties. However, information regarding the environmental toxicity associated with these chemicals is limited, in particular in the aquatic environment. In the present study, an experiment was performed in which the marine bivalve (Ruditapes decussatus) was exposed for 14days to 2 concentrations of zinc oxide-decorated Au nanoparticles (Au-ZnONPs: Au-ZnONP50=50μg/L; Au-ZnONP100=100μg/L)...
April 15, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28441596/individual-variation-of-persistent-organic-pollutants-in-relation-to-stable-isotope-ratios-sex-reproductive-phase-and-oxidative-status-in-scopoli-s-shearwaters-calonectris-diomedea-from-the-southern-mediterranean
#9
David Costantini, Manrico Sebastiano, Martina S Müller, Igor Eulaers, Per Ambus, Govindan Malarvannan, Adrian Covaci, Bruno Massa, Giacomo Dell'Omo
Little is known about the accumulation of persistent organic pollutants (POPs) and its consequences for seabirds in the Mediterranean basin. We characterised the plasma contaminant profile (polychlorinated biphenyls ΣPCBs; organochlorine pesticides ΣOCPs; polybrominated diphenyl ethers ΣPBDEs) of a population of the seabird Scopoli's shearwater (Calonectris diomedea) that breeds in the southern Mediterranean (Linosa Island) and investigated (i) whether sex, stable isotope ratios (related to diet), reproductive phase (early incubation vs...
April 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28441588/reduced-ena78-levels-as-novel-biomarker-for-major-depressive-disorder-and-venlafaxine-efficiency-result-from-a-prospective-longitudinal-study
#10
Zezhi Li, Zuowei Wang, Chen Zhang, Jun Chen, Yousong Su, Jia Huang, Zhenghui Yi, Chengmei Yuan, Wu Hong, Yong Wang, Zhiguo Wu, Yingyan Hu, Lan Cao, Daihui Peng, Yangtai Guan, Yimin Zou, Shunying Yu, Donghong Cui, Yiru Fang
Although lines of evidence demonstrated that cytokines play an important role in the pathogenesis of major depressive disorder (MDD), none of the them have been established as reliable biomarkers. We use our previous whole-genome cRNA microarray data to identify epithelial cell-derived neutrophil-activating peptide 78 (ENA78), the most differentially expressed cytokine in peripheral blood between MDD patients and healthy controls; and then we confirmed the result by the quantitative reverse transcription-polymerase chain reaction (RT-qPCR) and enzyme-linked immunosorbent assay (ELISA) for mRNA and protein level, respectively, in an independent drug-naïve first-episode sample set...
March 18, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28441544/enrichment-of-resolving-power-improves-ion-peak-quantification-on-a-lipidomics-platform
#11
Kosuke Saito, Yasuo Ohno, Yoshiro Saito
In this study, we delineated the importance of MS resolving power on the ion-peak quantification of lipids using an Orbitrap Fusion instrument and established a liquid chromatography-based, high-performance lipidomics platform. The ion-peak recognition of several lipids in human plasma, such as LPC(15:0), LPE(22:5), and PC(35:0), was clearly improved by increasing the MS resolving power. In addition, we evaluated the impact of resolving power on the quantitative detection of lipids by automatic ion-peak recognition with calculation of the coefficient of variance (CV)...
April 13, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28441537/determination-of-dihydralazine-based-on-chemiluminescence-resonance-energy-transfer-of-hollow-carbon-nanodots
#12
Suqin Han, Zheyan Fan, Xiaoxia Chen, Yunfang Wu, Jianbo Wang
The famous weak chemiluminescence (CL) system of potassium permanganate and sodium bisulfite (KMnO4-HSO3(-)) was enhanced by the hollow fluorescent carbon nanodots (HCNs). The investigation of mechanism revealed that the enhanced CL was induced by the excited-state HCNs (HCNs(⁎)), which could be produced from the electron-transfer annihilation of positively charged HCNs (HCNs(+)) and negatively charged HCNs (HCNs(-)) as well as by CL resonance energy transfer (CRET) from excited SO2 (SO2(⁎))/(1)O2 to HCNs...
April 20, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28441471/gemcitabine-integrated-nano-prodrug-carrier-system
#13
Seren Hamsici, Melis Sardan Ekiz, Goksu Cinar Ciftci, Ayse Begum Tekinay, Mustafa O Guler
Peptide nanomaterials have received a great deal of interest in drug delivery applications due to their biodegradability, biocompatibility, suitability for large scale synthesis, high drug loading capacities, targeting ability and ordered structural organization. The covalent conjugation of drugs to peptide backbone results in prolonged circulation time and improved stability of drugs. Therapeutic efficacy of gemcitabine, which is used for breast cancer treatment, is severely compromised due to its rapid plasma degradation...
April 25, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28441469/the-effect-of-ar-o-sub-2-sub-and-h-sub-2-sub-o-plasma-treatment-of-sno-sub-2-sub-nanoparticles-and-nanowires-on-carbon-monoxide-and-benzene-detection
#14
Erin P Stuckert, Christopher J Miller, Ellen R Fisher
As the final piece of a broader study on structure-property-performance of SnO<sub>2</sub> sensors, this study examines the performance of sensors created from tin (IV) oxide (SnO2) nanowires and nanoparticles as a function of temperature for untreated (UT) devices as well as those treated using Ar/O<sub>2</sub> and H<sub>2</sub>O plasmas. Nanoparticle and nanowire sensors were exposed to air, carbon monoxide (CO), or benzene (C<sub>6</sub>H<sub>6</sub>) to determine sensor response (R<sub>air</sub>/R<sub>gas</sub>) and sensitivity (R<sub>air</sub>/R</sub><sub>gas</sub> > 1 or R<sub>gas</sub>/R<sub>air</sub> > 1)...
April 25, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28441432/dysbiosis-of-intestinal-microbiota-and-decrease-in-paneth-cell-antimicrobial-peptide-level-during-acute-necrotizing-pancreatitis-in-rats
#15
Jing Chen, Chunlan Huang, Jingjing Wang, Hui Zhou, Yingying Lu, Lihong Lou, Junyuan Zheng, Ling Tian, Xingpeng Wang, Zhongwei Cao, Yue Zeng
OBJECTIVES: Intestinal barrier dysfunction plays an important role in acute necrotizing pancreatitis (ANP) and intestinal microbiota dysbiosis was involved in intestinal barrier failure. Paneth cells protect intestinal barrier and are associated with intestinal microbiota. Here, we investigated changes in intestinal microbiota and antimicrobial peptides of Paneth cells in ileum during ANP. METHODS: Rats with ANP were established by retrograde injection of 3.5% sodium taurocholate into biliopancreatic duct and sacrificed at 24h and 48h, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28441386/graft-derived-cell-free-dna-a-noninvasive-early-rejection-and-graft-damage-marker-in-liver-transplantation-a-prospective-observational-multicenter-cohort-study
#16
Ekkehard Schütz, Anna Fischer, Julia Beck, Markus Harden, Martina Koch, Tilo Wuensch, Martin Stockmann, Björn Nashan, Otto Kollmar, Johannes Matthaei, Philipp Kanzow, Philip D Walson, Jürgen Brockmöller, Michael Oellerich
BACKGROUND: Graft-derived cell-free DNA (GcfDNA), which is released into the blood stream by necrotic and apoptotic cells, is a promising noninvasive organ integrity biomarker. In liver transplantation (LTx), neither conventional liver function tests (LTFs) nor immunosuppressive drug monitoring are very effective for rejection monitoring. We therefore hypothesized that the quantitative measurement of donor-derived cell-free DNA (cfDNA) would have independent value for the assessment of graft integrity, including damage from acute rejection...
April 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28441357/investigation-of-the-anti-leishmania-leishmania-infantum-activity-of-some-natural-sesquiterpene-lactones
#17
Imke F Wulsten, Thais A Costa-Silva, Juliana T Mesquita, Marta L Lima, Mariana K Galuppo, Noemi N Taniwaki, Samanta E T Borborema, Fernando B Da Costa, Thomas J Schmidt, Andre G Tempone
Leishmaniases are neglected infectious diseases caused by parasites of the 'protozoan' genus Leishmania. Depending on the parasite species, different clinical forms are known as cutaneous, muco-cutaneous, and the visceral leishmaniasis (VL). VL is particularly fatal and the therapy presents limitations. In the search for new anti-leishmanial hit compounds, seven natural sesquiterpene lactones were evaluated against promastigotes and intracellular amastigotes of Leishmania (Leishmania) infantum, a pathogen causing VL...
April 25, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28441352/high-throughput-determination-of-sodium-danshensu-in-beagle-dogs-by-the-lcms-ms-method-employing-liquid-liquid-extraction-based-on-96-well-format-plates
#18
Jingjing Jiang, Xin Zhao, Xiuxiu Li, Shengyuan Wu, Shidan Yu, Yuefen Lou, Guorong Fan
Sodium Danshensu (sodium d-(+)-β-(3,4-dihydroxyphenyl) lactate), one of the water-soluble ingredients in Salvia miltiorrhiza, exhibits potent relaxation of the coronary artery and anticoagulation effection. A high-throughput, rapid, and sensitive method combining liquid chromatography with electrospray ionization tandem mass spectrometry to determine the sodium danshensu in beagle dog plasma was developed and validated, using gallic acid as an internal standard (IS). Acidified plasma samples were extracted using 96-well liquid-liquid extraction, and were eluted on a CNW Athena C18 column (3 μm, 2...
April 25, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28441351/probing-temperature-and-ph-dependent-binding-between-quantum-dots-and-bovine-serum-albumin-by-fluorescence-correlation-spectroscopy
#19
Zonghua Wang, Qiyan Zhao, Menghua Cui, Shichao Pang, Jingfang Wang, Ying Liu, Liming Xie
Luminescent quantum dots (QDs) with unique optical properties have potential applications in bio-imaging. The interaction between QDs and bio-molecules is important to the biological effect of QDs in vivo. In this paper, we have employed fluorescence correlation spectroscopy (FCS) to probe the temperature- and pH-dependent interactions between CdSe QDs with carboxyl (QDs-COOH) and bovine serum albumin (BSA) in buffer solutions. The results have shown that microscopic dissociation constant K'D is in the range of (1...
April 25, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28441156/interpreting-lipoproteins-in-nonalcoholic-fatty-liver-disease
#20
Katriina Nemes, Fredrik Åberg
PURPOSE OF REVIEW: The pathophysiologies of nonalcoholic fatty liver disease (NAFLD), metabolic syndrome, and cardiovascular disease are closely interlinked and associated with atherogenic dyslipidemia. Liver and cardiovascular disease may silently progress to advanced stages if alarming signs, such as abdominal obesity, elevated fasting and postprandial triglycerides, and low HDL cholesterol are overlooked. We review the metabolic mechanisms in NAFLD at the cellular level in the context of standard clinical lipid measurements...
April 22, 2017: Current Opinion in Lipidology
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