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https://www.readbyqxmd.com/read/29667460/clinical-utility-of-remote-platelet-function-measurement-using-p-selectin-assessment-of-aspirin-clopidogrel-and-prasugrel-and-bleeding-disorders
#1
Philip M Bath, Jane May, Stan Heptinstall
Vascular diseases such as myocardial infarction and ischemic stroke are associated with increased platelet function whilst the risk of recurrence is reduced by antiplatelet agents such as aspirin, clopidogrel, and prasugrel. However, some patients exhibit high platelet reactivity, especially with clopidogrel. Existing platelet function tests may not be ideal in that they can be expensive, are often time consuming, and measurements must be made near to the patient and within a few hours of blood collection. Platelet activation leads to translocation of P-selectin from alpha-granules to the cell surface...
April 18, 2018: Platelets
https://www.readbyqxmd.com/read/29666881/pathological-factors-contributing-to-crossed-cerebellar-diaschisis-in-cerebral-gliomas-a-study-combining-perfusion-diffusion-and-structural-mr-imaging
#2
Xiaoxue Liu, Jianrui Li, Qiang Xu, Dante Mantini, Peng Wang, Yuan Xie, Yifei Weng, Chiyuan Ma, Kangjian Sun, Zhiqiang Zhang, Guangming Lu
PURPOSE: To investigate imaging features of crossed cerebellar diaschisis (CCD) in cerebral gliomas, and its underlying pathophysiological mechanisms. METHODS: Thirty-three pre-surgical patients with cerebral gliomas and 33 healthy controls underwent arterial spin-labeling, diffusion tensor imaging, and high-resolution T1-weighted imaging using MRI, in order to estimate cerebral blood flow (CBF), white matter integrity, and lesion volume, respectively. Asymmetry indices of CBF in the cerebellum were used for evaluating the level of CCD in the patients...
April 17, 2018: Neuroradiology
https://www.readbyqxmd.com/read/29666009/in-vitro-validation-of-a-self-driving-aortic-turbine-venous-assist-device-for-fontan-patients
#3
Kerem Pekkan, Ibrahim Basar Aka, Ece Tutsak, Erhan Ermek, Haldun Balim, Ismail Lazoglu, Riza Turkoz
BACKGROUND: Palliative repair of single ventricle defects involve a series of open-heart surgeries where a single-ventricle (Fontan) circulation is established. As the patient ages, this paradoxical circulation gradually fails, because of its high venous pressure levels. Reversal of the Fontan paradox requires an extra subpulmonic energy that can be provided through mechanical assist devices. The objective of this study was to evaluate the hemodynamic performance of a totally implantable integrated aortic-turbine venous-assist (iATVA) system, which does not need an external drive power and maintains low venous pressure chronically, for the Fontan circulation...
March 11, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29665931/-establishment-of-a-serum-free-culture-system-based-on-heparin-and-anti-cd16-antibody-for-expansion-of-human-cord-blood-nk-cells
#4
Qiao-Chu Wang, Liang Zhen
OBJECTIVE: To establish a novel method for ex vivo expansion of natural killer cells from human umbilical blood, so as to provide the basis for NK cell therapy. METHODS: Mononucleated cells from human umbilical blood were harvested and suspended in a serum-free medium containing 5% autologous plasma, recombinant human IL-15 (50 ng/ml) and hydrocortisone sodium succinate (5×10-8 mol/L) at a concentration of 1.5×106 /ml, then the cells were seeded into flasks pre-coated with heparin sodium (100 U/cm2 ) or/and anti-human CD16 antibody (1 µg/cm2 )...
April 2018: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/29665930/-system-amplifying-nk-cells-using-mononuclear-cell-culture
#5
Shi-Jian Huang, Hong-Min Yan, Zi-Kuan Guo
OBJECTIVE: To develop an easy method to amplify natural killer (NK) cells by using mononuclear cells in vitro, so as to lay the basis for NK cell therapy. METHODS: Umbilical cord blood from 3 healthy full-term pregnant women was collected, and the peripheral blood mononuclear cells (PBMNC) were harvested by density gradient centrifugation. Each sample of PBMNC was divided into 3 groups: CD16mAb, CD3 mAb and CD16mAb+CD3mAb- groups. The culture flasks were pre-coated with CD16, CD3 or CD3 plus CD16 mAb...
April 2018: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/29665013/planhab-hypoxia-does-not-worsen-the-impairment-of-skeletal-muscle-oxidative-function-induced-by-bed-rest-alone
#6
Desy Salvadego, Michail E Keramidas, Roger Kölegård, Lorenza Brocca, Stefano Lazzer, Irene Mavelli, Jörn Rittweger, Ola Eiken, Igor B Mekjavic, Bruno Grassi
KEY POINTS: Superposition of hypoxia on 21 day bed rest did not worsen the impairment of skeletal muscle oxidative function induced by bed rest alone. A significant impairment of maximal oxidative performance was identified downstream of cardiovascular O2 delivery, involving both the intramuscular matching between O2 supply and utilization and mitochondrial respiration. These chronic adaptations appear to be relevant in terms of exposure to spaceflights and reduced gravity habitats (Moon or Mars), as characterized by low gravity and hypoxia, in patients with chronic diseases characterized by hypomobility/immobility and hypoxia, as well as in ageing...
April 17, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29663489/high-glucose-induced-excessive-reactive-oxygen-species-promote-apoptosis-through-mitochondrial-damage-in-rat-cartilage-endplate-cells
#7
Zengxin Jiang, Wei Lu, Qingmin Zeng, Defang Li, Lei Ding, Jingping Wu
PURPOSE: Diabetes mellitus (DM) is an important factor in intervertebral disc degeneration (IDD). Apoptosis of cartilage endplate (CEP) cells is one of the initiators of IDD. However, the effects of high glucose on CEP cells are still unknown. Therefore, we conducted the present study to evaluate the effects of high glucose on CEP cells and to identify the mechanisms of those effects. METHODS: Rat CEP cells were isolated and cultured in 10% foetal bovine serum (FBS, normal control) or high-glucose medium (10% FBS + 0...
April 16, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29663430/effectiveness-of-a-new-single-needle-single-pump-dialysis-system-with-simultaneous-monitoring-of-dialysis-dose
#8
Wolfgang Bieser, Markus Welsch, Marten Jakob, Jörn Meibaum, David A Rodriguez, Henrik Wolff, Daniele Marcelli, Claudia Barth
To date, single-needle (SN) hemodialysis (HD) requires a dialysis machine equipped with two blood pumps-one controlling arterial blood flow (Qb) and one controlling venous Qb. B. Braun has developed an innovative single-pump SN HD system. Therefore, usability is improved by reducing complexity. The aim of this study was to compare dialysis parameters of the new single-pump SN HD system with a double-pump SN HD system available on the market (Fresenius Medical Care [FMC] 5008). In this two-armed crossover study, patients were randomized into two groups (B...
April 16, 2018: Artificial Organs
https://www.readbyqxmd.com/read/29663084/characterization-of-circulating-leukocytes-and-correlation-of-leukocyte-subsets-with-metabolic-parameters-1-and-5-years-after-diabetes-diagnosis
#9
Maria Apostolopoulou, Barbara Menart-Houtermans, Ruth Ruetter, Bettina Nowotny, Ulrich Gehrmann, Daniel Markgraf, Julia Szendroedi, Nanette C Schloot, Michael Roden
AIMS: Infiltration of pancreatic islets with different leukocyte subtypes likely contributes to deterioration of glycemia in diabetes mellitus. Different subsets of leukocytes have been previously associated with type 1 or type 2 diabetes. This study aimed at examining these subsets at different stages of diabetes progression and possible relationships with metabolic parameters. METHODS: A total of 206 patients, 76 with type 1 and 130 with type 2 diabetes, were studied within the first year of diabetes diagnosis...
April 16, 2018: Acta Diabetologica
https://www.readbyqxmd.com/read/29662678/interleukin-6-is-a-key-factor-for-immunoglobulin-like-transcript-4-mediated-immune-injury-in-sepsis
#10
De Wen Zhang, Jian He
Background: ILT4+ monocytes seem to be associated with poor prognosis of sepsis in humans, but the exact mechanisms are unknown. This study aimed to examine the biological behaviors and effects of immunoglobulin-like transcript-4 (ILT4) levels on monocytes during sepsis and on the prognosis of sepsis. Methods: ILT4+/+ (WT) and ILT4-knockout (ILT4-/- ) male BALB/c mice were used for sepsis modeling using cecal ligation puncture (CLP). Flow cytometry was used to measure the levels of ILT4 and major histocompatibility complex class II (MHC-II) on peripheral blood monocytes 24 h after CLP...
2018: Journal of Intensive Care
https://www.readbyqxmd.com/read/29660923/haemochromatosis-pathophysiology-and-the-red-blood-cell1
#11
Kieran J Richardson, Antony P McNamee, Michael J Simmonds
Haemochromatosis remains the most prevalent genetic disorder of Caucasian populations in Australia and the United States, occurring in ∼1 of 200 individuals and having a carrier frequency of 10-14%. Hereditary haemochromatosis is an autosomal recessive condition, that is phenotypically characterised by a gradual accumulation of iron, above and beyond that required for biological function. Once the binding capacity of iron carriers reaches saturation, the highly reactive free iron generates radicals that may lead to widespread cellular dysfunction...
April 7, 2018: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/29659744/human-adipose-mesenchymal-stem-cells-overexpressing-dual-chemotactic-gene-showed-enhanced-angiogenic-capacity-in-ischemic-hindlimb-model
#12
Younggeul Min, Seongho Han, Hyun Aae Ryu, Sung-Whan Kim
Aims: In present study, we sought to characterize the angio-vasculogenic property of human adipose mesenchymal stem cells (ASCs) overexpressing dual chemokine GCP-2 and SDF-1α (ASC-G/S) and to determine the therapeutic potential of ASC-G/S in the context of experimental ischemia. Methods and results: We generated ASC-G/S line and performed flow cytometry, quantitative (q)-PCR, Matrigel tube formation, Matrigel plug assays and in vivo therapeutic assays using hind limb ischemia mouse model...
April 5, 2018: Cardiovascular Research
https://www.readbyqxmd.com/read/29659631/the-hemodynamic-effects-of-intravenous-paracetamol-acetaminophen-vs-normal-saline-in-cardiac-surgery-patients-a-single-center-placebo-controlled-randomized-study
#13
Elizabeth Chiam, Rinaldo Bellomo, Leonid Churilov, Laurence Weinberg
The hemodynamic effects of intravenous (IV) paracetamol in patients undergoing cardiac surgery are unknown. We performed a prospective single center placebo controlled randomized study with parallel group design in adult patients undergoing elective cardiac surgery. Participants received paracetamol (1 gram) IV or placebo (an equal volume of 0.9% saline) preoperatively followed by two postoperative doses 6 hours apart. The primary endpoint was the absolute change in systolic (SBP) 30 minutes after the preoperative infusion, analysed using an ANCOVA model...
2018: PloS One
https://www.readbyqxmd.com/read/29658630/lumbar-sympathectomy-versus-prostanoids-for-critical-limb-ischaemia-due-to-non-reconstructable-peripheral-arterial-disease
#14
REVIEW
Indrani Sen, Sunil Agarwal, Prathap Tharyan, Rachel Forster
BACKGROUND: Peripheral arterial disease (PAD) is a common circulatory problem that can lead to reduced blood flow to the limbs, which may result in critical limb ischaemia (CLI), a painful manifestation that occurs when a person is at rest. The mainstay of treatment for CLI is surgical or endovascular repair. However, when these means of treatment are not suitable, due to anatomical reasons or comorbidities, treatment for pain is limited. Lumbar sympathectomy and prostanoids have both been shown to reduce pain from CLI in people who suffer from non-reconstructable PAD, but there is currently insufficient evidence to determine if one treatment is superior...
April 16, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29656983/prophylaxis-and-treatment-of-foetal-growth-restriction
#15
REVIEW
Aamod Nawathe, Anna L David
Foetal growth restriction (FGR) and associated placental pathologies such as pre-eclampsia and stillbirth arise in early pregnancy when inadequate remodelling of maternal spiral arteries leads to persistent high-resistance low-flow uteroplacental circulation. Current interventions concentrate on targeting the placental ischaemia-reperfusion injury and oxidative stress associated with an imbalance in angiogenic/anti-angiogenic factors. Recent meta-analyses confirm that aspirin modestly reduces the risk for small-for-gestational-age pregnancy in high-risk women...
February 23, 2018: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/29655896/differential-expression-profile-of-long-non-coding-rna-in-the-stenosis-tissue-of-arteriovenous-fistula
#16
Yan Yan, Wen Ye, Qinkai Chen, Liu Yang, Li Zhang, Yu Liu, Xiaochen Zhou, Gongxian Wang
OBJECTIVE: To analyze and preliminarily validate the lncRNA expression profiles in the stenosis tissue of arteriovenous fistula (AVF). METHODS: A total of 54 uremic patients administered in the department of nephrology in the First Affiliated Hospital of Nanchang University between February 2017 and March 2017 were included in the study and subsequently categorized as experimental group, which included 12 patients with confirmed diagnosis of AVF, and control group which included 42 patients with no vascular stenosis...
April 12, 2018: Gene
https://www.readbyqxmd.com/read/29655768/cell-free-dna-and-microvascular-damage-in-st-segment-elevation-myocardial-infarction-treated-with-primary-percutaneous-coronary-intervention
#17
Juan Sanchis, Sergio García-Blas, Luis Ortega-Paz, Ana Paula Dantas, Enrique Rodríguez, Lidia Abellán, Salvatore Brugaletta, Ernesto Valero, Gema Miñana, Manuel Garabito, África Corchón, Julio Núñez, Arturo Carratalá, Manel Sabaté
INTRODUCTION AND OBJECTIVES: Cell-free DNA (cfDNA) in ST-segment elevation myocardial infarction might originate from hyperactivated leukocytes at the coronary lesion. Our aim was to investigate the relationship between cfDNA and coronary reperfusion. METHODS: We studied 116 patients treated with primary angioplasty using thrombus aspiration. Coronary (during aspiration) and peripheral (at the end of the procedure) blood samples were drawn for cfDNA, as well as high-sensitivity troponin T and myeloperoxidase quantification...
April 11, 2018: Revista Española de Cardiología
https://www.readbyqxmd.com/read/29655462/obesity-thrombotic-risk-and-inflammation-in-cancer
#18
Benjamín Rubio-Jurado, Luz-Ma-Adriana Balderas-Peña, Eduardo E García-Luna, María G Zavala-Cerna, Carlos Riebeling-Navarro, Pedro A Reyes, Arnulfo H Nava-Zavala
Neoplasms exhibits a high incidence and mortality rates due to their complex and commonly overlapping clinical, biochemical, and morphologic profiles influenced by acquired or inherited molecular abnormalities, cell of origin, and level of differentiation. Obesity appears related to ~20% of cancers including endometrial, esophageal, colorectal, postmenopausal breast, prostate, and renal. Several factors other than obesity, i.e., insulin, insulin-like growth factor, sexual hormones, and adipokines may play a potential role in neoplasia...
2018: Advances in Clinical Chemistry
https://www.readbyqxmd.com/read/29651523/simple-and-inexpensive-micromachined-aluminum-microfluidic-devices-for-acoustic-focusing-of-particles-and-cells
#19
Gayatri P Gautam, Tobias Burger, Andrew Wilcox, Michael J Cumbo, Steven W Graves, Menake E Piyasena
We introduce a new method to construct microfluidic devices especially useful for bulk acoustic wave (BAW)-based manipulation of cells and microparticles. To obtain efficient acoustic focusing, BAW devices require materials that have high acoustic impedance mismatch relative to the medium in which the cells/microparticles are suspended and materials with a high-quality factor. To date, silicon and glass have been the materials of choice for BAW-based acoustofluidic channel fabrication. Silicon- and glass-based fabrication is typically performed in clean room facilities, generates hazardous waste, and can take several hours to complete the microfabrication...
April 12, 2018: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29651421/when-the-nose-doesn-t-know-canine-olfactory-function-associated-with-health-management-and-potential-links-to-microbiota
#20
REVIEW
Eileen K Jenkins, Mallory T DeChant, Erin B Perry
The impact of health, management, and microbiota on olfactory function in canines has not been examined in review. The most important characteristic of the detection canine is its sense of smell. Olfactory receptors are primarily located on the ethmoturbinates of the nasal cavity. The vomeronasal organ is an additional site of odor detection that detects chemical signals that stimulate behavioral and/or physiological changes. Recent advances in the genetics of olfaction suggest that genetic changes, along with the unique anatomy and airflow of the canine nose, are responsible for the macrosmia of the species...
2018: Frontiers in Veterinary Science
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