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Soheil Sobhanardakani
The present study was intended to investigate the ecological and human health risk of cobalt, nickel, and vanadium in the atmospheric dry deposition of the Kermanshah city, Iran, in 2015. Totally 54 samples of atmospheric dry deposition were collected from the three regions of the city with different traffic intensity, and after acid digestion of the samples with ultrapure concentrated HNO3 , the total contents of the metals were determined using inductively coupled plasma optical emission spectrometer (ICP-OES)...
May 12, 2018: Biological Trace Element Research
Parisa Sabbagh, Ahmad Karkhah, Hamid Reza Nouri, Mostafa Javanian, Soheil Ebrahimpour
Regulatory T cells (Treg cells), are considered as effective immune cells playing a key role in immune response during cancers, autoimmune and infectious diseases. Regulatory T lymphocytes are divided into two main subgroups: natural Treg cells that generated during maturation in the thymus and have the suppressive activity that is critical for the establishment and maintenance of homeostasis in the body and induced Treg cells (iTreg) that are originated from naive T cells following the self-antigen recognition...
May 8, 2018: Infection, Genetics and Evolution
Ariana Prinzbach, Soheil Moosavinasab, Steve Rust, Brendan Boyle, John A Barnard, Yungui Huang, Simon Lin
OBJECTIVES: Celiac disease (CD) is associated with a variety of extraintestinal autoimmune and inflammatory findings that manifest clinically as symptoms and comorbidities. Understanding these comorbidities may improve identification of the disease and prevent sequelae. In this study, we use an unbiased electronic health record (EHR)-based Phenome Wide Association Study (PheWAS) method to confirm known comorbidities, discover novel associations and enhance characterization of the clinical presentation of CD in children...
May 9, 2018: Journal of Pediatric Gastroenterology and Nutrition
Soheil Afshar, Melanie Porter, Belinda Barton, Michael Stormon
As survival rates for pediatric liver transplantation continue to increase, research attention is turning towards long-term functional consequences, with particular interest in whether medical and transplant-related factors are implicated in neurocognitive outcomes. The relative importance of different factors is unclear, due to a lack of methodological uniformity, inclusion of differing primary diagnoses, variable transplant policies, and organ availability in different jurisdictions. This cross-sectional, single-site study sought to address various methodological limitations in the literature and the paucity of studies conducted outside of North America and Western Europe by examining the intellectual and academic outcomes of Australian pediatric liver transplant recipients (N = 40)...
May 9, 2018: American Journal of Transplantation
Michael J McNeil, Marguerite T Parisi, Nobuko Hijiya, Soheil Meshinchi, Todd Cooper, Katherine Tarlock
Extramedullary leukemia (EML) is common in pediatric acute leukemia and can present at diagnosis or relapse. CD33 is detected on the surface of myeloid blasts in many patients with acute myelogenous leukemia and is the target of the antibody drug conjugate gemtuzumab ozogamicin (GO). Here we present 2 patients with CD33 EML treated with GO. They achieved significant response, with reduction of EML on both clinical and radiographic exams, specifically fluorine fluorodeoxyglucose positron emission tomography/computed tomography, demonstrating potential for targeted therapy with GO as a means of treating EML in patients with CD33 leukemia and the utility of fluorine fluorodeoxyglucose positron emission tomography/computed tomography monitoring in EML...
May 4, 2018: Journal of Pediatric Hematology/oncology
Soheil Rezazadeh Mofradnia, Zahra Tavakoli, Fatemeh Yazdian, Hamid Rashedi, Behnam Rasekh
In this research, we attempt to study biosurfactant production by Pseudomonas aeruginosa using Fe/starch nanoparticles. Fe/starch showed no bacterial toxicity at 1 mg/ml and increased the growth rate and biosurfactant production up to 23.21 and 20.73%, respectively. Surface tension, dry weight cell, and emulsification indexes (E24) were measured. Biosurfactant production was considered via computational techniques and molecular dynamic (MD) simulation through flexible and periodic conditions (by material studio software) as well...
May 3, 2018: International Journal of Biological Macromolecules
Zahra Raziei, Danial Kahrizi, Hosein Rostami-Ahmadvandi
Due to the importance of Camelina for low expectation (water and other inputs) and as an oil crop, Soheil cultivar was cultivated in Ardebil, Hamedan, Rasht, Ilam, Kermanshah, Karaj, Mashhad, Ahvaz and Bushehr Provinces. Fatty acids were measured with MG-Mass. Results showed that morphological traits were not very dependent on the climate, but the profile of the fatty acids was dependent. ANOVA of the effects of climate on the saturated fatty acid showed that there were significant differences between climates for all studied SFAs (P<0...
April 30, 2018: Cellular and Molecular Biology
Abdolkarim Rahmanian, Nima Derakhshan, Alireza Mohsenian Sisakht, Najme Karamzade Ziarati, Hadi Raeisi Shahraki, Soheil Motamed
Objectives: To evaluate the odds for unfavorable outcome of each risk factor and a combination of them in patients with aneurysmal subarachnoid hemorrhage (SAH) undergoing surgical clipping in Southern Iran. Methods: A total of 367 patients who were operated between March 2007 and March 2016 due to aneurysmal SAH were analyzed according to patients' factors, aneurysm characteristics and intra-operative data. Correlation between outcomes of patients measured by modified Rankin Scale at 6-months with each factor were analyzed...
April 2018: Bulletin of Emergency and Trauma
Soheil Mehrabkhani, Lennart Wefelnberg, Thomas Schneider
The transport-of-intensity equation (TIE) has been proven as a standard approach for phase retrieval. Some high efficiency solving methods for the TIE, extensively used in many works, is based on a Fourier transform (FT). However, several assumptions have to be made to solve the TIE by these methods. A common assumption is that there are no zero values for the intensity distribution allowed. The two most widespread Fourier-based approaches have further restrictions. One of these requires the uniformity of the intensity distribution and the other assumes the parallelism of the intensity and phase gradients...
April 30, 2018: Optics Express
Soheil Saadat, Mojgan Karbakhsh, Mahnaz Saremi, Iraj Alimohammadi, Hassan Ashayeri, Mahsa Fayaz, Farideh Sadeghian, Reza Rostami
Background and aim: Driving after a night shift imposes a risk on health care professionals and other road users. The aim of this study was to measure psychomotor performance of driving of night shift nurses compared to day-shift nurses. Methods: Forty-seven volunteer female nurses working at Sina hospital in Tehran, Iran, with a call in all departments of hospital, participated in this study (23 night shift and 24 day shift nurses) in 2016. The tests included RT for simple reaction time, ATAVT for perceptual speed, LVT for visual orientation and ZBA for time anticipation...
February 2018: Electronic Physician
Bradley Stockard, Timothy Garrett, Joy Guingab-Cagmat, Soheil Meshinchi, Jatinder Lamba
Acute myeloid leukemia (AML) is a heterogeneous disease with dismal response warranting the need for enhancing our understanding of AML biology. One prognostic feature associated with inferior response is the presence of activating mutations in FMS-like tyrosine kinase 3 (FLT3) especially occurrence of internal tandem duplication (FLT3-ITD). Although poorly understood, differential metabolic and signaling pathways associated with FLT3-ITD might contribute towards the observed poor prognosis. We performed a non-targeted global metabolic profiling of matched cell and plasma samples obtained at diagnosis to establish metabolic differences within FLT3-ITD and FLT3-WT pediatric AML...
April 3, 2018: Scientific Reports
Soheil Koushaei, Mohammad Hassan Samandari, Sayed Mohammad Razavi, Ahad Khoshzaban, Shahriar Adibi, Payam Varedi
The purpose of this article was to evaluate the bone induction effects of an amnion membrane protected graft compared with collagen membrane protected graft in repair of tibial bony defects in dogs. This study was performed using the tibial bone of dogs. After the removal of periostium, similar holes were made with a 16 mm trephine drill (38 holes in total). For the study group ten holes were covered by absorbable collagen and 16 holes by amniotic membrane. In control group 12 holes were made and were covered by the overlying soft tissue...
April 2, 2018: Journal of Oral Implantology
Simin Lesan, Roja Toosi, Reza Aliakbarzadeh, Maryam Daneshpazhooh, Leila Mahmoudi, Soheil Tavakolpour, Hamidreza Mahmoudi
AIM: The potential role of superantigens derived from microbial agents could be considered in the pathogenesis of psoriasis, but the association between Candida albicans and psoriasis severity is still controversial. The present study was designed to compare the prevalence of oral candidiasis in a group of psoriatic patients and healthy patients, and its correlation with psoriasis severity. METHODS: Seventy psoriatic patients with no history of systemic treatment and 70 closely-matched control patients underwent oral examination...
March 30, 2018: Journal of Investigative and Clinical Dentistry
Danial Habibi, Mohammad Rafiei, Ali Chehrei, Zahra Shayan, Soheil Tafaqodi
Objective: There are a number of models for determining risk factors for survival of patients with gastric cancer. This study was conducted to select the model showing the best fit with available data. Methods: Cox regression and parametric models (Exponential, Weibull, Gompertz, Log normal, Log logistic and Generalized Gamma) were utilized in unadjusted and adjusted forms to detect factors influencing mortality of patients. Comparisons were made with Akaike Information Criterion (AIC) by using STATA 13 and R 3...
March 27, 2018: Asian Pacific Journal of Cancer Prevention: APJCP
Azam Khezri, Arsalan Karimi, Fatemeh Yazdian, Mahmoud Jokar, Soheil Rezazadeh Mofradnia, Hamid Rashedi, Zahra Tavakoli
Nanotechnology-based drug delivery systems have been used to enhance bioavailability and biological activities. Chitosan incorporating curcumin can serve as a biocompatible substitute for metallic nanoparticles in preventing biofilm formation of Streptococcus mutans and plaque on teeth. The interactions between chitosan nanoparticle as a carrier and curcumin, a natural antibacterial agent, were simulated. The binding conformation between curcumin-chitosan was obtained using the Lamarckian Genetic Algorithm in Autodock™ software in chitosan nanoparticle...
March 20, 2018: International Journal of Biological Macromolecules
Soheil Saedi, Sayed E Saghaian, Ahmadreza Jahadakbar, Narges Shayesteh Moghaddam, Mohsen Taheri Andani, Sayed M Saghaian, Y Charles Lu, Mohammad Elahinia, Haluk E Karaca
Porous NiTi scaffolds display unique bone-like properties including low stiffness and superelastic behavior which makes them promising for biomedical applications. The present article focuses on the techniques to enhance superelasticity of porous NiTi structures. Selective Laser Melting (SLM) method was employed to fabricate the dense and porous (32-58%) NiTi parts. The fabricated samples were subsequently heat-treated (solution annealing + aging at 350 °C for 15 min) and their thermo-mechanical properties were determined as functions of temperature and stress...
March 21, 2018: Journal of Materials Science. Materials in Medicine
Raynell Lang, Ron Read, Hartmut B Krentz, Soheil Ramazani, Mingkai Peng, Jennifer Gratrix, M John Gill
BACKGROUND: Syphilis is a global health concern disproportionately affecting HIV-infected populations. In Alberta, Canada, the incidence of syphilis in the general population has recently doubled with 25% of these infections occurring in HIV-infected patients. The Southern Alberta HIV Clinic (SAC) and Calgary STI Program (CSTI) analyzed the epidemiologic characteristics of incident syphilis infections in our well-defined, HIV-infected population over 11 years. METHODS: Since 2006, as routine practice of both the Southern Alberta Clinic (SAC) and Calgary STI Programs (CSTI), syphilis screening has accompanied HIV viral load measures every four months...
March 13, 2018: BMC Infectious Diseases
Karl Roessler, Burkhard S Kasper, Roland Coras, Soheil Arinrad, Michael Scholz, Hajo H Hamer, Ingmar Blümcke, Michael Buchfelder
BACKGROUND: Temporal lobe resection (TLR) including amygdalohippocampectomy (AHE) is the most frequent performed procedure in epilepsy surgery. Owing to the close anatomic relationship of the mesial temporal structures and the midbrain and choroidal fissure, the incidence of severe complications, such as postoperative stroke, is as high as 2.5%. METHODS: We developed a modification of the classical technique for AHE that involves entering the choroidal fissure early via the anterior part of the frontomesial temporal horn cleft to identify the crus cerebri, posterior cerebri artery, and oculomotor nerve...
March 7, 2018: World Neurosurgery
Majid Shojaee, Saeed Safari, Anita Sabzghabaei, Mostafa Alavi-Moghaddam, Ali Arhami Dolatabadi, Hamid Kariman, Soheil Soltani
Introduction: Pro-brain natriuretic peptide (Pro-BNP) can act as an independent predictor of mortality in septic patients. This study aimed to compare the diagnostic accuracy of pro-BNP and Mortality in Emergency Department Sepsis (MEDS) score in this regard. Method: This cross-sectional study was conducted on > 14 years old sepsis patients of an emergency department (ED), during 2 years. The level of Pro-BNP and MEDS score were measured for all eligible patients and considering one month mortality as reference, screening performance characteristics of the two tests were compared using SPSS 21 and STATS 11...
2018: Emergency (Tehran, Iran)
Xiaotu Ma, Yu Liu, Yanling Liu, Ludmil B Alexandrov, Michael N Edmonson, Charles Gawad, Xin Zhou, Yongjin Li, Michael C Rusch, John Easton, Robert Huether, Veronica Gonzalez-Pena, Mark R Wilkinson, Leandro C Hermida, Sean Davis, Edgar Sioson, Stanley Pounds, Xueyuan Cao, Rhonda E Ries, Zhaoming Wang, Xiang Chen, Li Dong, Sharon J Diskin, Malcolm A Smith, Jaime M Guidry Auvil, Paul S Meltzer, Ching C Lau, Elizabeth J Perlman, John M Maris, Soheil Meshinchi, Stephen P Hunger, Daniela S Gerhard, Jinghui Zhang
Analysis of molecular aberrations across multiple cancer types, known as pan-cancer analysis, identifies commonalities and differences in key biological processes that are dysregulated in cancer cells from diverse lineages. Pan-cancer analyses have been performed for adult but not paediatric cancers, which commonly occur in developing mesodermic rather than adult epithelial tissues. Here we present a pan-cancer study of somatic alterations, including single nucleotide variants, small insertions or deletions, structural variations, copy number alterations, gene fusions and internal tandem duplications in 1,699 paediatric leukaemias and solid tumours across six histotypes, with whole-genome, whole-exome and transcriptome sequencing data processed under a uniform analytical framework...
March 15, 2018: Nature
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