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https://www.readbyqxmd.com/read/28808726/polarization-transfer-efficiency-in-phip-experiments
#1
M Emondts, J F P Colell, B Blümich, P P M Schleker
Parahydrogen induced polarization (PHIP) is a hyperpolarization method for NMR signal enhancement with applications in spectroscopy and imaging. Although parahydrogen can be easily enriched up to nearly 95%, the polarization detected on the hydrogenated substrate is substantially lower, where numerous loss mechanisms between the start of the hydrogenation reaction and detection affect polarization levels. The quality of PHIP systems is commonly determined by stating either the polarization degree or the enhancement factor of the product at the time of detection...
August 15, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28808377/anti-inflammatory-potential-of-petiveria-alliacea-on-activated-raw264-7-murine-macrophages
#2
Rosa Martha Perez Gutierrez, Carlos Hoyo-Vadillo
BACKGROUND: Defense and protection to multiple harmful stimuli are the inflammation, when is self-amplified and uncontrolled is the basis of the pathogenesis of a wide variety of inflammatory illness. The aim of this study was to evaluate if Petiveria alliacea could attenuate inflammation in a murine model of RAW264 macrophages the involved model and its involved mechanism. MATERIALS AND METHODS: The ethanol extract from P. alliacea was precipitated with water and supernatant was used for this study (PW)...
July 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28794979/identification-of-the-epileptogenic-zone-of-temporal-lobe-epilepsy-from-stereo-electroencephalography-signals-a-phase-transfer-entropy-and-graph-theory-approach
#3
Meng-Yang Wang, Jing Wang, Jian Zhou, Yu-Guang Guan, Feng Zhai, Chang-Qing Liu, Fei-Fei Xu, Yi-Xian Han, Zhao-Fen Yan, Guo-Ming Luan
The aim of this research is to apply an approach based on phase transfer entropy (PTE) and graph theory to study the interactions between the stereo-electroencephalography (SEEG) activities recorded in multilobar origin, in order to evaluate their ability to detect the epileptogenic zone (EZ) of temporal lobe epilepsies (TLE). Forty-three patients were included in this retrospective study. Five to sixteen (median = 12) multilead electrodes were implanted per patient, and, for each patient, a sub-set of between 10 and 32 (median = 22) bipolar derivations was selected for analysis...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28770705/are-the-cutaneous-manifestations-in-patients-with-primary-antiphospholipid-syndrome-a-marker-for-predicting-lung-manifestations
#4
Milica Kontic, Ljudmila Stojanovich, Milena Mijailović-Ivković, Mladen Velinović, Jasminka Srnka, Marija Zdravkovic
OBJECTIVES: The aim of this study was to investigate association between pulmonary and skin manifestations in a large group of patients with primary antiphospholipid syndrome (PAPS) as well as their connection with antiphospholipid antibodies. METHODS: Our prospective study comprises of 390 patients with primary APS. Antiphospholipid antibody (aPL) analysis included detection of aCL (IgG/IgM), ß2GPI (IgG/IgM) and LA. Distinct pulmonary and skin associations were determined, as well as their associations with aPL...
July 17, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28768507/book-review-further-understanding-of-the-human-machine-the-road-to-bioengineering
#5
Alvin Wald
Max E. Valentinuzzi (editor) Further understanding of the human machine. The road to bioengineering Series on bioengineering and biomedical engineering, volume 7.Singapore/New Jersey: World Scientific Publishing Co. Pte. Ltd.pp. xxxi+546. ISBN 9789813147256.
August 2, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28761588/salvage-prostatectomy-for-post-radiation-adenocarcinoma-with-treatment-effect-pathological-and-oncological-outcomes
#6
Michael J Metcalfe, Patricia Troncoso, Charles C Guo, Hsiang-Chun Chen, Yasar Bozkurt, John F Ward, Louis L Pisters
INTRODUCTION: Prostate biopsies following localized radiation therapy for prostate cancer often demonstrate residual prostatic carcinoma with treatment effect (CTE). The final oncological outcome of prostatic CTE is currently uncertain. We studied the pathological and oncological outcomes for a large cohort of patients who had CTE on post-radiation therapy biopsy and subsequently underwent salvage radical prostatectomy (SRP). METHODS: A single-centre retrospective review of all SRPs performed from 1995-2014 was performed...
July 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28756498/post-transplant-erythrocytosis-related-maculopathy-successful-management-of-hyperviscosity-with-phlebotomy
#7
Sumeet Khanduja, Brijesh Takkar, Neha Khanduja, Pradeep Venkatesh
PURPOSE: To report clinical features in a case of hyperviscosity retinopathy following post-renal transplant erythrocytosis (PTE) and its outcome after phlebotomy. METHODS: Fundus fluorescein angiography and optical coherence tomography (OCT) were carried out for a 29-year-old renal allograft recipient who presented with acute unilateral visual loss. RESULT: There was mild retinal vascular dilation in both eyes with retinal hemorrhages and retinal opaqueness in left eye...
July 29, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28755324/volumetric-quantification-of-glioblastoma-experiences-with-different-measurement-techniques-and-impact-on-survival
#8
Christian Henker, Thomas Kriesen, Änne Glass, Björn Schneider, Jürgen Piek
The potential impact of different radiological features of glioblastoma multiforme (GBM) on overall survival (OS) like tumor volume, peritumoral edema (PTE), necrosis volume, necrosis-tumor ratio (NTR) and edema-tumor ratio (ETR) is still very controversial. To determine the influence of volumetric data on OS und to compare different measuring techniques described in literature. We prospectively evaluated preoperative MR images from 30 patients harboring a primary supratentorial GBM. All patients received gross-total tumor resection followed by standard radiation and chemotherapy (temozolomide)...
July 28, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28754607/reversal-of-nocturnal-non-dipping-of-blood-pressure-after-levothyroxine-therapy-in-patients-with-subclinical-hypothyroidism
#9
Mannmath Nath, Balram Gupta, Madhukar Rai, Surya K Singh
AIMS: To study the loss of diurnal variation in blood pressure in normotensive patients with Subclinical/overt hypothyroidism and effect of Levothyroxine (L-T4) treatment. MATERIALS AND METHODS: In this interventional study Eighty patients between 17- 50 years with newly detected OH and SCH (74 women and 6 men) and nine euthyroid subjects (all men) with blood pressure <140/90 were recruited. All patients underwent 24h ambulatory blood pressure monitoring (ABPM) using ABPM machine before and after treatment with L-T4...
July 20, 2017: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/28750323/differential-use-of-3-cites-by-the-subgenomic-rna-of-pea-enation-mosaic-virus-2
#10
Feng Gao, Anne E Simon
The genomic RNA (gRNA) of Pea enation mosaic virus 2 (PEMV2) is the template for p33 and -1 frameshift product p94. The PEMV2 subgenomic RNA (sgRNA) encodes two overlapping ORFs, p26 and p27, which are required for movement and stability of the gRNA. Efficient translation of p33 requires two of three 3' proximal cap-independent translation enhancers (3'CITEs): the kl-TSS, which binds ribosomes and engages in a long-distance interaction with the 5'end; and the adjacent eIF4E-binding PTE. Unlike the gRNA, all three 3'CITEs were required for efficient translation of the sgRNA, which included the ribosome-binding 3'TSS...
July 24, 2017: Virology
https://www.readbyqxmd.com/read/28708870/assessment-of-resampling-methods-for-causality-testing-a-note-on-the-us-inflation-behavior
#12
Angeliki Papana, Catherine Kyrtsou, Dimitris Kugiumtzis, Cees Diks
Different resampling methods for the null hypothesis of no Granger causality are assessed in the setting of multivariate time series, taking into account that the driving-response coupling is conditioned on the other observed variables. As appropriate test statistic for this setting, the partial transfer entropy (PTE), an information and model-free measure, is used. Two resampling techniques, time-shifted surrogates and the stationary bootstrap, are combined with three independence settings (giving a total of six resampling methods), all approximating the null hypothesis of no Granger causality...
2017: PloS One
https://www.readbyqxmd.com/read/28697731/texture-analysis-of-pulmonary-parenchymateous-changes-related-to-pulmonary-thromboembolism-in-dogs-a-novel-approach-using-quantitative-methods
#13
C B Marschner, M Kokla, J M Amigo, E A Rozanski, B Wiinberg, F J McEvoy
BACKGROUND: Diagnosis of pulmonary thromboembolism (PTE) in dogs relies on computed tomography pulmonary angiography (CTPA), but detailed interpretation of CTPA images is demanding for the radiologist and only large vessels may be evaluated. New approaches for better detection of smaller thrombi include dual energy computed tomography (DECT) as well as computer assisted diagnosis (CAD) techniques. The purpose of this study was to investigate the performance of quantitative texture analysis for detecting dogs with PTE using grey-level co-occurrence matrices (GLCM) and multivariate statistical classification analyses...
July 11, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28687936/prevalence-of-lower-urinary-tract-symptoms-in-china-taiwan-and-south-korea-results-from-a-cross-sectional-population-based-study
#14
Christopher Chapple, David Castro-Diaz, Yao-Chi Chuang, Kyu-Sung Lee, Limin Liao, Shih-Ping Liu, Jianye Wang, Tag Keun Yoo, Romeo Chu, Budiwan Sumarsono
INTRODUCTION: Few population-based data are available evaluating the prevalence of lower urinary tract symptoms (LUTS) in Asia. The objective of our study was to determine LUTS prevalence in China, Taiwan, and South Korea using International Continence Society (ICS) 2002 criteria. METHODS: An Internet-based self-administered survey among individuals aged at least 40 years with the ability to use a computer and to read the local language. Survey questions included ICS symptom definitions and the international prostate symptom score (IPSS)...
July 7, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28686993/potentially-toxic-elements-in-water-and-sediments-of-the-sava-river-under-extreme-flow-events
#15
Radmila Milačič, Tea Zuliani, Janja Vidmar, Primož Oprčkal, Janez Ščančar
River ecosystems are exposed to various stressors. Among them, elements may contribute to overall pollution of riverine environments, in particular during the extreme flow events. To evaluate the influence of variable river flow conditions on the mobilization of potentially toxic elements (PTE) (Cr, Ni, Cd, Zn, Pb, As and Cu) from sediments into the overlaying waters of the Sava River, samples were collected in September 2014, during extremely high water discharges and in September 2015, under low water discharge conditions...
July 4, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28685332/potential-toxic-trace-element-pte-contamination-in-baoji-urban-soil-nw-china-spatial-distribution-mobility-behavior-and-health-risk
#16
Xiaoping Li, Ting Wu, Hongxiang Bao, Xianyu Liu, Changlin Xu, Yanan Zhao, Dongying Liu, Hongtao Yu
Rapid urbanization and industrialization may cause increased exposure levels to potential toxic trace elements (PTEs) and associated health risks for population living in cities. The main objectives of this study are to investigate systematically the occurrence, source, fate, and risk of PTE contamination from industrial influence in Baoji urban soil. Seven PTE levels (Pb, Zn, Cu, Cr, V, Sb, and As) were surveyed in 50 composite samples from Baoji urban soil by wavelength dispersive X-ray fluorescence spectrometry...
July 6, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28681292/biochars-mitigate-greenhouse-gas-emissions-and-bioaccumulation-of-potentially-toxic-elements-and-arsenic-speciation-in-phaseolus-vulgaris-l
#17
Muhammad Ibrahim, Gang Li, Sardar Khan, Qiaoqiao Chi, Yaoyang Xu
Anthropogenic and natural activities can lead to increased greenhouse gas emissions and discharge of potentially toxic elements (PTEs) into soil environment. Biochar amendment to soils is a cost-effective technology and sustainable approach used to mitigate greenhouse gas emissions, improve phytoremediation, and minimize the health risks associated with consumption of PTE-contaminated vegetables. Greenhouse pot experiments were conducted to investigate the effects of peanut shell biochar (PNB) and sewage sludge biochar (SSB) on greenhouse gas (GHG) emissions, plant growth, PTE bioaccumulation, and arsenic (As) speciation in bean plants...
July 5, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28680585/pulmonary-thromboendarterectomy-in-the-setting-of-a-mediastinal-venous-malformation-with-a-congenitally-absent-left-subclavian-vein
#18
Vickram Tejwani, Karunakaravel Karuppasamy, Marcelo P Gomes, Abraham Levitin, James M Luethke, Christopher J Morin, Nicholas G Smedira, Gustavo A Heresi, Wayne F Yakes
Venous malformations have static venous lakes that predispose to spontaneous venous thrombosis within the malformation due to its low-flow static state. Thrombi of varying sizes can then embolize continually into the pulmonary arterial circulation, and occlude and narrow elastic pulmonary arteries causing chronic thromboembolic pulmonary hypertension (CTEPH). Pulmonary thromboendarterectomy (PTE) is potentially curative in CTEPH, but has not been previously reported in the setting of mediastinal and chest wall venous malformations...
March 2017: Pulmonary Circulation
https://www.readbyqxmd.com/read/28674613/an-intimal-sarcoma-of-pulmonary-artery-mimicking-pulmonary-embolism-a-case-report-and-literature-review
#19
Xiaojing Liu, Jun Hou, Xiangdong Wang, Zhihong Chen
Pulmonary artery intimal sarcoma is a highly aggressive disease, and is most often misdiagnosed as pulmonary thromboembolism (PTE) due to the similar clinical symptoms and its rarity, which leads to the use of inappropriate treatments such as prolonged anticoagulant therapy. We reported a case of pulmonary artery intimal sarcoma in a patient who was misdiagnosed as having PTE. Pathology after surgery confirmed malignant disease. We concluded that when a patient presents with mild clinical manifestations yet with strong imaging manifestations, pulmonary artery malignancy should be suspected...
September 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28667848/prediction-of-the-bioavailability-of-potentially-toxic-elements-in-freshwaters-comparison-between-speciation-models-and-passive-samplers
#20
Jordi Sierra, Neus Roig, Gemma Giménez Papiol, Elena Pérez-Gallego, Marta Schuhmacher
The aim of this work is to predict the bioavailability of the Potentially Toxic Elements (PTEs) Cd, Pb, Hg, Ni, Cu, Zn, As, Cr and Se in 6 sites within the Ebro River basin. In situ Diffusive gradient in thin-films (DGTs) and classical sampling have been used and compared. The potentially bioavailable fractions of each PTE was estimated by modelling their chemical speciation using three programs (WHAM 7.0, Visual MINTEQ 3.1 and Bio-met), following the suggestions published in recent European regulations. Results of the equilibrium-based models WHAM 7...
June 28, 2017: Science of the Total Environment
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