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https://www.readbyqxmd.com/read/28894713/malignant-transformation-in-leukoplakia-and-its-associated-factors-in-southern-iran-a-hospital-based-experience
#1
Alireza Barfi Qasrdashti, Mina Seied Habashi, Peyman Arasteh, Mahshid Torabi Ardakani, Zahra Abdoli, Seyed Sajjad Eghbali
BACKGROUND: We evaluated factors that affect malignant transformation of leukoplakia in a sample of the Iranian population. METHODS: The records of patients with a clinical diagnosis of leukoplakia during a 20-year period from 1989-2009 referred to two of the largest referral centers in southern Iran were studied. Patients that developed malignant transformation were compared with patients that did not have malignant changes. RESULTS: Of 522 patients, female patients, those over 50 yr old and with lesions located on the tongue had the highest rate of malignant changes...
August 2017: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/28751961/effect-of-bariatric-surgery-on-adiposity-and-metabolic-profiles-a-prospective-cohort-study-in-middle-eastern-patients
#2
Mohsen Mazidi, Peyman Rezaie, Ali Jangjoo, Alireza Tavassoli, Mohammad Taghi Rajabi, Andre Pascal Kengne, Mohsen Nematy
AIM: To investigate changes in adiposity and cardio-metabolic risk profile following Roux-en-Y gastric bypass in patients of Middle Eastern ethnicity with severe obesity. METHODS: This prospective cohort study involved 92 patients who met the indications of bariatric surgery. Post-procedure markers of obesity and cardiometabolic profile were monitored regularly for a year. RESULTS: Mean body mass index decreased by 29.5% from 41.9 to 29.5 kg/m(2) between baseline and 12-mo follow-up, while mean fat mass decreased by 45...
July 15, 2017: World Journal of Diabetes
https://www.readbyqxmd.com/read/28732979/sonocatalytic-degradation-of-reactive-yellow-39-using-synthesized-zro2-nanoparticles-on-biochar
#3
Alireza Khataee, Berkant Kayan, Peyman Gholami, Dimitrios Kalderis, Sema Akay, Laleh Dinpazhoh
ZrO2-biochar (ZrO2-BC) nanocomposite was prepared by a modified sonochemical/sol-gel method. The physicochemical properties of the prepared nanocomposite were evaluated using scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray fluorescence, Fourier transform infrared spectroscopy and Brunauer-Emmett-Teller model. The sonocatalytic performance of ZrO2-BC was investigated in sonochemical degradation of Reactive Yellow 39 (RY39). The high observed sonocatalytic activity of the ZrO2-BC sample could be interpreted by the mechanisms of sonoluminescence and hot spots...
November 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28732928/sonocatalytic-degradation-of-an-anthraquinone-dye-using-tio2-biochar-nanocomposite
#4
Alireza Khataee, Berkant Kayan, Peyman Gholami, Dimitrios Kalderis, Sema Akay
TiO2-biochar (TiO2-BC) nanocomposite was synthesized by sol-gel method. The characteristics of the prepared nanocomposite were examined using X-ray fluorescence, scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy and N2 adsorption-desorption analysis. The performance of synthesized TiO2-BC nanocomposite as efficient sonocatalyst was studied for the degradation of Reactive Blue 69 (RB69). Sonocatalytic degradation of RB69 in the presence of TiO2-BC nanocomposite could be explained by the mechanisms of hot spots and sonoluminescence...
November 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28710047/intradural-intramedullary-teratoma-presenting-in-the-lumbar-spine-report-of-a-rare-case
#5
Alireza Mohammadi, Taha Fereydouni, Ali Rahbari, Peyman Mokarian, Zoha Khademi
BACKGROUND: Intradural teratoma is an exceedingly unusual phenomenon. They are tumors with the cellular constituent source of all the three germ cell layers. CASE DESCRIPTION: We here report a case of an 18-year-old male with special pathological features. There was no history of spinal dysraphism, congenital spinal abnormalities, previous spinal surgery, or lumbar puncture. Lumbosacral spine magnetic resonance imaging revealed a well-delineated, intramedullary mass at the L2-L3 levels of the lumbar spine...
July 11, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28690163/relationship-between-metabolic-syndrome-and-osteoarthritis-the-fasa-osteoarthritis-study
#6
Alireza Askari, Elham Ehrampoush, Reza Homayounfar, Peyman Arasteh, Mohammad Mehdi Naghizadeh, Mohammadreza Yarahmadi, Niloofar Tarbiat, Seyed Sajjad Eghbali
BACKGROUND: An association between metabolic syndrome (MeS) and osteoarthritis (OA) has been reported in recent years; however, conflicting findings have been reported regarding this matter. Inhere we evaluated the relationship between different components of MeS and OA in a Fasa osteoarthritis registry (FOAS). METHODS: The registry includes all OA cases who referred to Fasa hospital (Iran) since 2013. Overall, 131 patients with OA with a Kellgren & Lawrence (K&L) score >1 and 261 controls were compared...
July 3, 2017: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/28658247/optimal-structure-of-metaplasticity-for-adaptive-learning
#7
Peyman Khorsand, Alireza Soltani
Learning from reward feedback in a changing environment requires a high degree of adaptability, yet the precise estimation of reward information demands slow updates. In the framework of estimating reward probability, here we investigated how this tradeoff between adaptability and precision can be mitigated via metaplasticity, i.e. synaptic changes that do not always alter synaptic efficacy. Using the mean-field and Monte Carlo simulations we identified 'superior' metaplastic models that can substantially overcome the adaptability-precision tradeoff...
June 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28626818/astigmatic-treatment-with-photorefractive-keratectomy-investigations-of%C3%A2-non-keratometric-ocular-astigmatism
#8
Alireza Peyman, Zahra Dastborhan, Mohammadreza Peyman
PURPOSE: To evaluate the effect of non-keratometric ocular astigmatisms on visual and refractive outcomes after photorefractive keratectomy (PRK) for correction of myopic astigmatisms. METHODS: Seventy one eyes of 36 subjects were enrolled in this study. Patients underwent PRK for treatment of myopia. Subjects were evaluated for refractive error, keratometry, and visual acuity before and six months after surgery. Pre- and post-op non-keratometric astigmatisms were calculated by vectorial analysis of the difference between the corneal plane refractive astigmatism and keratometric astigmatism...
June 2017: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/28555426/a-novel-approach-to-the-extraction-of-fetal-electrocardiogram-based-on-empirical-mode-decomposition-and-correlation-analysis
#9
Peyman Ghobadi Azbari, Mostafa Abdolghaffar, Saeed Mohaqeqi, Mohammad Pooyan, Alireza Ahmadian, Niloofar Ghanbarzadeh Gashti
Fetal heart rate monitoring is the process of checking the condition of the fetus during pregnancy and it would allow doctors and nurses to detect early signs of trouble during labor and delivery. The fetal ECG (FECG) signal is so weak and also is corrupted by other signals and noises, mainly by maternal ECG signal. It is so hard to acquire a noise-free, precise and reliable FECG using the conventional methods. In this study, a combination of empirical mode decomposition (EMD) algorithms, correlation and match filtering is used for extracting FECG from maternal abdominal ECG signals...
May 29, 2017: Australasian Physical & Engineering Sciences in Medicine
https://www.readbyqxmd.com/read/28512785/clinical-immunologic-molecular-analyses-and-outcomes-of-iranian-patients-with-lrba-deficiency-a-longitudinal-study
#10
Gholamreza Azizi, Hassan Abolhassani, Seyed Alireza Mahdaviani, Zahra Chavoshzadeh, Peyman Eshghi, Reza Yazdani, Fatemeh Kiaee, Mohammadreza Shaghaghi, Javad Mohammadi, Nima Rezaei, Lennart Hammarström, Asghar Aghamohammadi
BACKGROUND: LPS-responsive beige-like anchor protein (LRBA) deficiency is a combined immunodeficiency caused by mutation in LRBA gene. The patients have a variety of clinical symptoms including hypogammaglobulinemia, recurrent infections, autoimmunity, and enteropathy. METHODS: A total of 17 LRBA-deficient patients were enrolled in this longitudinal study. For all patients, demographic information, clinical records, laboratory, and molecular data were collected...
May 17, 2017: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/28426971/metaplasticity-as-a-neural-substrate-for-adaptive-learning-and-choice-under-uncertainty
#11
Shiva Farashahi, Christopher H Donahue, Peyman Khorsand, Hyojung Seo, Daeyeol Lee, Alireza Soltani
Value-based decision making often involves integration of reward outcomes over time, but this becomes considerably more challenging if reward assignments on alternative options are probabilistic and non-stationary. Despite the existence of various models for optimally integrating reward under uncertainty, the underlying neural mechanisms are still unknown. Here we propose that reward-dependent metaplasticity (RDMP) can provide a plausible mechanism for both integration of reward under uncertainty and estimation of uncertainty itself...
April 19, 2017: Neuron
https://www.readbyqxmd.com/read/28299302/cornea-collagen-cross-linking-for-keratoconus-a-comparison-between-accelerated-and-conventional-methods
#12
Hasan Razmjoo, Alireza Peyman, Ali Rahimi, Hoda Jafari Modrek
BACKGROUND: Keratoconus is a progressive degenerative disorder of the cornea in which structural changes in the cornea cause it to become thin and conical in shape. Recently, collagen cross-linking (CXL) has been introduced as an effective intervention in management of progressive keratoconus. Accelerated CXL is a new protocol of this procedure which reduces corneal ultraviolet irradiation exposure time to 5 min. This study aimed to compare visual acuity, keratometry and topographic criteria of keratoconic eyes after conventional and accelerated CXL with a six-month follow-up...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/28216654/performance-kinetic-and-biodegradation-pathway-evaluation-of-anaerobic-fixed-film-fixed-bed-reactor-in-removing-phthalic-acid-esters-from-wastewater
#13
Ehsan Ahmadi, Samira Yousefzadeh, Mohsen Ansari, Hamid Reza Ghaffari, Ali Azari, Mohammad Miri, Alireza Mesdaghinia, Ramin Nabizadeh, Babak Kakavandi, Peyman Ahmadi, Mojtaba Yegane Badi, Mitra Gholami, Kiomars Sharafi, Mostafa Karimaei, Mahboobeh Ghoochani, Masoud Binesh Brahmand, Seyed Mohsen Mohseni, Maryam Sarkhosh, Soheila Rezaei, Hosseinali Asgharnia, Emad Dehghanifard, Behdad Jafari, Alireza Mortezapour, Vahid Kazemi Moghaddam, Mohammad Molla Mahmoudi, Nader Taghipour
Emerging and hazardous environmental pollutants like phthalic acid esters (PAEs) are one of the recent concerns worldwide. PAEs are considered to have diverse endocrine disrupting effects on human health. Industrial wastewater has been reported as an important environment with high concentrations of PAEs. In the present study, four short-chain PAEs including diallyl phthalate (DAP), diethyl phthalate (DEP), dimethyl phthalate (DMP), and phthalic acid (PA) were selected as a substrate for anaerobic fixed film fixed bed reactor (AnFFFBR)...
February 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28144274/noonan-syndrome-a-new-survey
#14
Alireza Tafazoli, Peyman Eshraghi, Zahra Kamel Koleti, Mohammadreza Abbaszadegan
Noonan syndrome (NS) is an autosomal dominant disorder with vast heterogeneity in clinical and genetic features. Various symptoms have been reported for this abnormality such as short stature, unusual facial characteristics, congenital heart abnormalities, developmental complications, and an elevated tumor incidence rate. Noonan syndrome shares clinical features with other rare conditions, including LEOPARD syndrome, cardio-facio-cutaneous syndrome, Noonan-like syndrome with loose anagen hair, and Costello syndrome...
February 1, 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28127360/species-identification-and-molecular-typing-of-leishmania-spp-using-targeting-hsp70-gene-in-suspected-patients-of-cutaneous-leishmaniasis-from-sistan-and-baluchestan-province-southeast-iran
#15
Hadi Mirahmadi, Alireza Salimi Khorashad, Alireza Sohrabnahad, Peyman Heydarian, Negar Bizhani
BACKGROUND: Leishmaniasis is a sand fly-borne disease caused by the protozoan parasites belonging to the genus Leishmania. Because of the preventing and controlling methods, clinical course, prognosis and choice of treatment are differing from species; differentiation of species is critical. The present study was aimed to detect the parasite species using the PCR-RFLP method. METHODS: A total of 130 Giemsa-Stained slides from suspected Cutaneous leishmaniasis (CL) patients were examined under a light microscope at ×1000...
October 2016: Iranian Journal of Parasitology
https://www.readbyqxmd.com/read/28054293/comparison-of-the-effect-of-gastric-bypass-and-sleeve-gastrectomy-on-metabolic-syndrome-and-its-components-in-a-cohort-tehran-obesity-treatment-study-tots
#16
Maryam Barzin, Mohammad Ali Kalantar Motamedi, Sara Serahati, Alireza Khalaj, Peyman Arian, Majid Valizadeh, Davood Khalili, Fereidoun Azizi, Farhad Hosseinpanah
INTRODUCTION: Metabolic syndrome (MetS) is a prevalent counterpart of morbid obesity. With the surgical technique of sleeve gastrectomy (SG) gaining widespread acceptance for weight loss in morbid obese patients, we aimed to undertake a study to compare its effectiveness to gastric bypass (GB) for metabolic control in these patients. METHODS: A total of 425 patients from a prospectively collected database of morbid obese subjects between 18 and 65 years of age undergoing a primary bariatric procedure from March 2013 to September 2015 were included...
January 4, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/27830212/statistical-analysis-of-stereoacuity-in-ophthalmology-research
#17
Alireza Peyman, Mohammadreza Peyman
No abstract text is available yet for this article.
December 2016: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/27817080/retraction-note-to-tissue-expression-levels-of-mir-29b-and-mir-422a-in-children-adolescents-and-young-adults-age-groups-and-their-association-with-prediction-of-poor-prognosis-in-human-osteosarcoma
#18
Reza Bahador, Afshin Taheriazam, Alireza Mirghasemi, Ali Torkaman, Mohammadreza Shakeri, Emad Yahaghi, Peyman Karimi Goudarzi
No abstract text is available yet for this article.
November 5, 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/27817079/retraction-note-to-downregulation-of-mir-185-and-upregulation-of-mir-218-expression-may-be-potential-diagnostic-and-prognostic-biomarkers-of-human-chondrosarcoma
#19
Peyman Karimi Goudarzi, Afshin Taheriazam, Saeid Asghari, Mohammad Jamshidi, Mohammadreza Shakeri, Emad Yahaghi, Alireza Mirghasemi
No abstract text is available yet for this article.
November 5, 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/27799968/evaluation-of-aryoseven-safety-recombinant-activated-factor-vii-in-patients-with-bleeding-disorders-an-observational-post-marketing-surveillance-study
#20
Gholamreza Toogeh, Hassan Abolghasemi, Peyman Eshghi, Mohammadreza Managhchi, Mohammadreza Shaverdi-Niasari, Katayoon Karimi, Samin Roostaei, Neda Emran, Alireza Abdollahi
BACKGROUND: Recombinant activated factor VII induces hemostasis in patients with coagulopathy disorders. AryoSeven™ as a safe Iranian Recombinant activated factor VII has been available on our market. This study was performed to establish the safety of AryoSeven on patients with coagulopathy disorder. METHODS: This single-center, descriptive, cross sectional study was carried out in Thrombus and Homeostasis Research Center ValiAsr Hospital during 2013-2014. Fifty one patients with bleeding disorders who received at least one dose of Aryoseven were enrolled...
2016: Iranian Journal of Pathology
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