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https://www.readbyqxmd.com/read/28989586/how-do-donor-recipient-cmv-serostatus-and-post-hematopoietic-stem-cell-transplantation-cmv-reactivation-affect-outcomes-in-acute-leukemia-patients
#1
Mohammad Vaezi, Amir Kasaeian, Maryam Souri, Faeze Soufiyan, Amir Shokri Boosjin, Seyed Amin Setarehdan, Kamran Alimoghaddam, Ardeshir Ghavamzadeh
Background: This study evaluated CMV serostatus in donors and recipients of hematopoietic stem cell transplantation (HSCT) and its effects on CMV reactivation of patients and all aspects of CMV on HSCT outcomes. Materialsand Methods: Seven hundred and five adult acute leukemia patients (AML=408 and AML=297) who had undergone HSCT were included in this retrospective study. We categorized donor-recipient pairs in three risk groups: positive donors (D+) were studied as high-risk group, including either R+ or R-(n=485), R-D- as low-risk group (n=32) and R+D- as intermediate group (n=15)...
July 1, 2017: International Journal of Hematology-oncology and Stem Cell Research
https://www.readbyqxmd.com/read/28986822/global-spread-of-hemorrhagic-fever-viruses-predicting-pandemics
#2
Jean-Paul Gonzalez, Marc Souris, Willy Valdivia-Granda
As successive epidemics have swept the world, the scientific community has quickly learned from them about the emergence and transmission of communicable diseases. Epidemics usually occur when health systems are unprepared. During an unexpected epidemic, health authorities engage in damage control, fear drives action, and the desire to understand the threat is greatest. As humanity recovers, policy-makers seek scientific expertise to improve their "preparedness" to face future events.Global spread of disease is exemplified by the spread of yellow fever from Africa to the Americas, by the spread of dengue fever through transcontinental migration of mosquitos, by the relentless influenza virus pandemics, and, most recently, by the unexpected emergence of Ebola virus, spread by motorbike and long haul carriers...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28964223/note-rapid-measurement-of-fluorescence-lifetimes-using-sipm-detection-and-waveform-sampling
#3
H-M Tsai, J S Souris, H-J Kim, S-H Cheng, L Chen, L-W Lo, C-T Chen, C-M Kao
In fluorescence spectroscopy and imaging, fluorescence lifetime measurement-assessing the average time fluorophores spend in their excited state before returning to their ground state-offers a number of advantages over quantifying fluorescence intensities that include resistance to photo-bleaching and independence from fluorophore concentration, excitation intensity, and measurement methodology. Despite growing interest, fluorescence lifetime techniques frequently mandate relatively complex instrumentation, slow data acquisition rates, and significant data analyses...
September 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/28951008/patient-specific-bolus-for-range-shifter-air-gap-reduction-in-intensity-modulated-proton-therapy-of-head-and-neck-cancer-studied-with-monte-carlo-based-plan-optimization
#4
Steven Michiels, Ana Maria Barragán, Kevin Souris, Kenneth Poels, Wouter Crijns, John A Lee, Edmond Sterpin, Sandra Nuyts, Karin Haustermans, Tom Depuydt
BACKGROUND & PURPOSE: Intensity-modulated proton therapy (IMPT) of superficial lesions requires pre-absorbing range shifter (RS) to deliver the more shallow spots. RS air gap minimization is important to avoid spot size degradation, but remains challenging in complex geometries such as in head-and-neck cancer (HNC). In this study, clinical endpoints were investigated for patient-specific bolus and for conventional RS solutions, making use of a Monte Carlo (MC) dose engine for IMPT optimization...
September 23, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28942315/identification-of-chemical-fingerprints-in-long-range-transport-of-burning-induced-upper-tropospheric-ozone-from-colorado-to-the-north-atlantic-ocean
#5
Wonbae Jeon, Yunsoo Choi, Amir Hossein Souri, Anirban Roy, Lijun Diao, Shuai Pan, Hwa Woon Lee, Soon-Hwan Lee
This study investigates a significant biomass burning (BB) event occurred in Colorado of the United States in 2012 using the Community Multi-scale Air Quality (CMAQ) model. The simulation reasonably reproduced the significantly high upper tropospheric O3 concentrations (up to 145ppb) caused by BB emissions. We find the BB-induced O3 was primarily affected by chemical reactions and dispersion during its transport. In the early period of transport, high NOx and VOCs emissions caused O3 production due to reactions with the peroxide and hydroxyl radicals, HO2 and OH...
February 1, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/28875009/abo-incompatibility-and-hematopoietic-stem-cell-transplantation-outcomes
#6
Mohammad Vaezi, Davoud Oulad Dameshghi, Maryam Souri, Seyed Amin Setarehdan, Kamran Alimoghaddam, Ardeshir Ghavamzadeh
Introduction: The increased risk of hemolytic reactions and erythrocyte recovery delay in ABO incompatible hematopoietic stem cell transplantation (HSCT) are well established. Effects of ABO incompatibility on other transplantation outcomes are evaluated in this study. Subjects and Methods: We prospectively followed 501 patients undergoing allogeneic stem cell transplantation regarding their ABO compatibility groups for a median time of 34.7 months. Patients were studied in minor, major and bidirectional mismatched and matched groups...
April 1, 2017: International Journal of Hematology-oncology and Stem Cell Research
https://www.readbyqxmd.com/read/28836380/comparison-of-human-umbilical-cord-blood-processing-with-or-without-hydroxyethyl-starch
#7
Milad Souri, Mahin Nikougoftar Zarif, Mahboobeh Rasouli, Khadijeh Golzadeh, Mozhdeh Nakhlestani Hagh, Nasim Ezzati, Kamran Atarodi
BACKGROUND: Umbilical cord blood (UCB) processing with hydroxyethyl starch (HES) is the most common protocol in the cord blood banks. The quality of UCB volume reduction was guaranteed by minimum manipulation of cord blood samples in the closed system. This study aimed to analyze and compare cell recovery and viability of UCB processed using the Sepax automated system in the presence and absence of HES. STUDY DESIGN AND METHODS: Thirty UCB bags with a total nucleated cell (TNC) count of more than 2...
August 23, 2017: Transfusion
https://www.readbyqxmd.com/read/28822949/production-of-biochar-from-olive-mill-solid-waste-for-heavy-metal-removal
#8
Samya O Abdelhadi, Carlos G Dosoretz, Giora Rytwo, Yoram Gerchman, Hassan Azaizeh
Commercial activated carbon (CAC) and biochar are useful adsorbents for removing heavy metals (HM) from water, but their production is costly. Biochar production from olive solid waste from two olive cultivars (Picual and Souri) and two oil production process (two- or three-phase) and two temperatures (350 and 450°C) was tested. The biochar yield was 24-35% of the biomass, with a surface area of 1.65-8.12m(2)g(-1), as compared to 1100m(2)g(-1) for CAC. Picual residue from the two-phase milling technique, pyrolysed at 350°C, had the best cumulative removal capacity for Cu(+2), Pb(+2), Cd(+2), Ni(+2) and Zn(+2) with more than 85% compared to other biochar types and CAC...
November 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28817383/combined-influence-of-ct-random-noise-and-hu-rsp-calibration-curve-nonlinearities-on-proton-range-systematic-errors
#9
S Brousmiche, K Souris, J Orban de Xivry, J A Lee, B Macq, J Seco
Proton range random and systematic uncertainties are the major factors undermining the advantages of proton therapy, namely, a sharp dose falloff and a better dose conformality for lower doses in normal tissues. The influence of CT artifacts such as beam hardening or scatter can easily be understood and estimated due to their large-scale effects on the CT image, like cupping and streaks. In comparison, the effects of weakly-correlated stochastic noise are more insidious and less attention is drawn on them partly due to the common belief that they only contribute to proton range uncertainties and not to systematic errors thanks to some averaging effects...
October 12, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28801214/lobar-hemorrhage-induced-by-acquired-factor-xiii-deficiency-in-a-patient-with-cerebral-amyloid-angiopathy
#10
Hidetaka Arishima, Hiroyuki Neishi, Ken-Ichiro Kikuta, Mihoko Morita, Naoko Hosono, Takahiro Yamauchi, Masayoshi Souri, Akitada Ichinose
A 68-year-old man presented with intracranial hemorrhage in the right frontal lobe, which rapidly increased the day after admission. We performed hematoma removal with a biopsy of the cortex around the hematoma. The day after the operation, a subcutaneous hematoma over the craniotomy appeared, and the computed tomography showed a recurrent hemorrhage with an acute subdural hematoma. We were aware of a bleeding tendency, and a detailed hematologic examination by hematologists revealed autoimmune acquired factor XIII deficiency due to an antifactor XIII antibody...
August 8, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28770198/arsenic-hyperaccumulation-strategies-an-overview
#11
REVIEW
Zahra Souri, Naser Karimi, Luisa M Sandalio
Arsenic (As) pollution, which is on the increase around the world, poses a growing threat to the environment. Phytoremediation, an important green technology, uses different strategies, including As uptake, transport, translocation, and detoxification, to remediate this metalloid. Arsenic hyperaccumulator plants have developed various strategies to accumulate and tolerate high concentrations of As. In these plants, the formation of AsIII complexes with GSH and phytochelatins and their transport into root and shoot vacuoles constitute important mechanisms for coping with As stress...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28703922/sensitivity-evaluation-and-selective-plane-imaging-geometry-for-x-ray-induced-luminescence-imaging
#12
Bryan P Quigley, Corey D Smith, Shih-Hsun Cheng, Jeffrey S Souris, Charles A Pelizzari, Chin-Tu Chen, Leu-Wei Lo, Chester S Reft, Rodney D Wiersma, Patrick J La Riviere
PURPOSE: X-ray-induced luminescence (XIL) is a hybrid x-ray/optical imaging modality that employs nanophosphors that luminescence in response to x-ray irradiation. X-ray-activated phosphorescent nanoparticles have potential applications in radiation therapy as theranostics, nanodosimeters, or radiosensitizers. Extracting clinically relevant information from the luminescent signal requires the development of a robust imaging model that can determine nanophosphor distributions at depth in an optically scattering environment from surface radiance measurements...
October 2017: Medical Physics
https://www.readbyqxmd.com/read/28610689/experimental-assessment-of-proton-dose-calculation-accuracy-in-inhomogeneous-media
#13
J Sorriaux, M Testa, H Paganetti, J Orban de Xivry, J A Lee, E Traneus, K Souris, S Vynckier, E Sterpin
PURPOSE: Proton therapy with Pencil Beam Scanning (PBS) has the potential to improve radiotherapy treatments. Unfortunately, its promises are jeopardized by the sensitivity of the dose distributions to uncertainties, including dose calculation accuracy in inhomogeneous media. Monte Carlo dose engines (MC) are expected to handle heterogeneities better than analytical algorithms like the pencil-beam convolution algorithm (PBA). In this study, an experimental phantom has been devised to maximize the effect of heterogeneities and to quantify the capability of several dose engines (MC and PBA) to handle these...
June 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28496466/validated-spectrophtometric-method-for-simultaneous-determination-of-buprenorphine-and-naloxone-in-pharmaceutical-dosage-forms
#14
Effat Souri, Farzaneh Sadat Ahmadi, Maliheh Barazandeh Tehrani, Majid Mohammad Hosseini, Sedigheh Fadaye Vatan
Buprenorphine is a partial mu agonist and kappa antagonist which is used for the treatment of pain and opioid addiction. A mixture of buprenorphine hydrochloride and naloxone hydrochloride has been approved for the treatment of opioid dependence. In this study a third order derivative spectrophotometric method based on zero-crossing technique has been used for the simultaneous determination of buprenorphine hydrochloride and naloxone hydrochloride in tablets. The measurements were carried out at wavelengths of 257...
2017: Iranian Journal of Pharmaceutical Research: IJPR
https://www.readbyqxmd.com/read/28495517/berberine-confers-neuroprotection-in-coping-with-focal-cerebral-ischemia-by-targeting-inflammatory-cytokines
#15
Solmaz Nasseri Maleki, Nahid Aboutaleb, Faramarz Souri
SCOPE: Existing research indicates that anti-inflammatory and antioxidant properties of berberine play major roles in coping with oxidative stress in neurodegenerative diseases, but it is not known if this isoquinoline alkaloid affects inflammatory cytokines such as interleukin 10 in focal cerebral ischemia. METHODS AND RESULTS: Male Wistar rats (10 weeks old) were treated with 40mg/kg concentration of berberine 1h after focal cerebral ischemia and the anti-inflammatory properties of berberine were evaluated by immunohistochemical analysis, water content measure and behavioral tests...
May 8, 2017: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/28494013/modeling-spatial-variation-in-risk-of-presence-and-insecticide-resistance-for-malaria-vectors-in-laos
#16
Marc Souris, Sébastien Marcombe, Julie Laforet, Paul T Brey, Vincent Corbel, Hans J Overgaard
Climatic, sociological and environmental conditions are known to affect the spatial distribution of malaria vectors and disease transmission. Intensive use of insecticides in the agricultural and public health sectors exerts a strong selective pressure on resistance genes in malaria vectors. Spatio-temporal models of favorable conditions for Anopheles species' presence were developed to estimate the probability of presence of malaria vectors and insecticide resistance in Lao PDR. These models were based on environmental and meteorological conditions, and demographic factors...
2017: PloS One
https://www.readbyqxmd.com/read/28488470/antioxidant-enzymes-responses-in-shoots-of-arsenic-hyperaccumulator-isatis-cappadocica-desv-under-interaction-of-arsenate-and-phosphate
#17
Zahra Souri, Naser Karimi, Letúzia M de Oliveira
The present study investigated the effects of arsenate and phosphate interaction on growth, lipid peroxidation, arsenic (As) accumulation, phosphorus (P) accumulation, and the activities of some antioxidant enzymes in Isatis cappadocica. Plants were exposed to (50-1200 μmol L(-1)) arsenate and (5-1600 μmol L(-1)) phosphate for 28 days in a hydroponic system. At a phosphate concentration of 1600 µM, biomass production and chlorophyll content increased, demonstrating clearly that phosphate was able to provide protection against As toxicity...
May 27, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28484145/comparison-the-effects-of-poor-health-and-low-income-on-early-retirement-a-systematic-review-and-meta-analysis
#18
Enayatollah Homaie Rad, Arash Rashidian, Mohamad Arab, Ali Souri
The main aim of this study was to estimate the effects of poor health and low income on early retirement. For this purpose systematic review and meta-analysis were conducted. Web of Science, PUBMED and Scopus databases were searched systematically. Finally 17 surveys were added in meta-analysis. These studies were conducted in 13 countries. At the end a Meta regression was done to show the effects of welfare system type on effect sizes of poor health and low income. The results of this study showed that poor health had effect on the risk of early retirement...
August 8, 2017: Industrial Health
https://www.readbyqxmd.com/read/28381771/oil-characteristics-of-four-palestinian-olive-varieties
#19
Enrico Maria Lodolini, Serena Polverigiani, Saed Ali, Mohammed Mutawea, Mayyada Qutub, Taysir Arabasi, Fabio Pierini, Mohammed Abed, Davide Neri
Olive oil represents an important source of income for Palestinian farmers in local, national and international markets. Sometimes, olive oil produced in local climatic conditions, does not achieve the International Olive Council (IOC) trade standards so that international markets are precluded. The oil chemical composition and sensory profile of four Palestinian olive varieties (Nabali Baladi, Nabali Mohassan, Souri and K18) were characterized in 2010 throughout an in situ evaluation. Most of the physicchemical characteristics and the fatty acid composition of the varieties met the International Olive Council trade standards (IOC-TS) for extra virgin olive oils...
May 1, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28380473/successful-management-of-a-patient-with-autoimmune-hemorrhaphilia-due-to-anti-factor-xiii-13-antibodies-complicated-by-pulmonary-thromboembolism
#20
Yoshiyuki Ogawa, Kunio Yanagisawa, Masayoshi Souri, Masahiro Mihara, Chiaki Naito, Makiko Takizawa, Takuma Ishizaki, Takeki Mitsui, Hiroshi Handa, Tsukasa Osaki, Yoshihisa Nojima, Akitada Ichinose
Autoimmune hemophilia-like disease (hemorrhaphilia) due to anti-factor XIII (FXIII) antibodies (AH13) is a very rare, life-threatening bleeding disorder. A 77-year-old woman developed macrohematuria and a right renal pelvic hematoma. The coagulation times were not prolonged, but FXIII activity and antigen levels were severely and moderately reduced to 9 and 29% of normal values, respectively. Accordingly, the FXIII-specific activity turned out to be low. FXIII inhibitor and anti-FXIII-A subunit autoantibodies were detected by a 1:1 crossmixing test and immunoblot and immunochromatographic assays...
2017: Acta Haematologica
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