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https://www.readbyqxmd.com/read/28626818/astigmatic-treatment-with-photorefractive-keratectomy-investigations-of%C3%A2-non-keratometric-ocular-astigmatism
#1
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
#2
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-immunological-molecular-analyses-and-outcomes-of-iranian-patients-with-lrba-deficiency-a-longitudinal-study
#3
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. RESULTS: Hypogammaglobulinemia were reported in 14 (82...
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
https://www.readbyqxmd.com/read/27720593/sonocatalytic-degradation-of-ciprofloxacin-using-synthesized-tio2-nanoparticles-on-montmorillonite
#14
Aydin Hassani, Alireza Khataee, Semra Karaca, Canan Karaca, Peyman Gholami
TiO2/Montmorillonite (TiO2/MMT) nanocomposite as sonocatalyst was produced by immobilizing synthesized TiO2 on the surface of montmorillonite. The characteristics of produced nanocomposite were investigated using XRD, XRF, FTIR, TEM, SEM, EDX, UV-vis DRS and nitrogen adsorption-desorption analyses. The synthesized TiO2 and TiO2/MMT samples were applied as catalysts for sonocatalytic degradation of ciprofloxacin (CIP). The performance of the TiO2/MMT was greater than pure TiO2 sample in treatment of CIP solution...
March 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/27610175/a-prospective-study-to-assess-vancomycin-serum-concentrations-inpediatric-patients-with-current-dosing-guidelines
#15
Peyman Arfa, Abdollah Karimi, Sedigheh Rafiei Tabatabaei, Alireza Fahimzad, Shahnaz Armin, Mohammad Sistanizad
Concerns about increasing bacterial resistance to vancomycin, have caused the adult treatment guidelines to recommend higher trough concentrations based on the type and location of infectious disease. Although these recommendations are not specific to children, the values can be extrapolated. This prospective study was designed to evaluate efficacy of current vancomycin dosing recommendations to achieve therapeutic trough serum concentration in pediatric patients. Laboratory data, vancomycin dosing and subsequent serum concentrations of children in a community teaching pediatrics hospital were collected and analyzed...
2016: Iranian Journal of Pharmaceutical Research: IJPR
https://www.readbyqxmd.com/read/27578617/new-anthropometric-indices-or-old-ones-which-is-the-better-predictor-of-body-fat
#16
Elham Ehrampoush, Peyman Arasteh, Reza Homayounfar, Makan Cheraghpour, Meysam Alipour, Mohammad Mehdi Naghizadeh, Maryam Hadibarhaghtalab, Sayed Hosein Davoodi, Alireza Askari, Jalaledin Mirzay Razaz
BACKGROUND: The percent and distribution of body fat are important factors in the pathogenesis of numerous diseases. Our aim was to investigate common anthropometric indices in their relationship with body fat content. METHODS: In a cross-sectional study 1360 healthy individuals (580 men and 780 women) in a cluster sampling, from Ahvaz, Iran, body fat content (using bioelectrical impedance) and anthropometric measurements [weight, waist circumference, a body shape index, abdominal volume index, body adiposity index, conicity, body mass index, hip circumference, waist to hip ratio and waist to height ratio] was obtained...
August 23, 2016: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/27561318/occupancy-of-human-epcr-by-protein-c-induces-%C3%AE-arrestin-2-biased-par1-signaling-by-both-apc-and-thrombin
#17
Ram Vinod Roy, Abdolreza Ardeshirylajimi, Peyman Dinarvand, Likui Yang, Alireza R Rezaie
Activation of PAR1 by activated protein C (APC) and thrombin elicits paradoxical cytoprotective and cytotoxic signaling responses in vascular endothelial cells through cleavage of the receptor at Arg-46 and Arg-41 protease recognition sites, respectively. It has been reported that unlike a disruptive G-protein mediated PAR1 signaling by thrombin, APC induces a protective β-arrestin-2 biased PAR1 signaling by unknown mechanisms. We hypothesize that the occupancy of endothelial protein C receptor (EPCR) by the Gla-domain of protein C/APC is responsible for the β-arrestin-2 biased PAR1 signaling independent of the protease cleavage site...
August 25, 2016: Blood
https://www.readbyqxmd.com/read/27546592/inorganic-polyphosphate-promotes-cyclin-d1-synthesis-through-activation-of-mtor-wnt-%C3%AE-catenin-signaling-in-endothelial-cells
#18
S M Hassanian, A Ardeshirylajimi, P Dinarvand, A R Rezaie
Essentials Polyphosphate (polyP) activates mTOR but its role in Wnt/β-catenin signaling is not known. PolyP-mediated cyclin D1 expression (β-catenin target gene) was monitored in endothelial cells. PolyP and boiled platelet-releasates induced the expression of cyclin D1 by similar mechanisms. PolyP establishes crosstalk between mTOR and Wnt/β-catenin signaling in endothelial cells. SUMMARY: Background Inorganic polyphosphate (polyP) elicits intracellular signaling responses in endothelial cells through activation of mTOR complexes 1 and 2...
November 2016: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/27509026/defining-a-bmi-cut-off-point-for-the-iranian-population-the-shiraz-heart-study
#19
Mohammad Ali Babai, Peyman Arasteh, Maryam Hadibarhaghtalab, Mohammad Mehdi Naghizadeh, Alireza Salehi, Alireza Askari, Reza Homayounfar
In this study we evaluated and redefined the optimum body mass index (BMI) cut-off point for the Iranian population based on metabolic syndrome (MeS) risk factors. We further evaluated BMI cut-off points with and without waist circumference (WC) as a cofactor of risk and compared the differences. This study is part of the largest surveillance programs conducted in Shiraz, Iran, termed the Shiraz Heart study. Our study sample included subjects between the ages of 20 to 65 years old. After excluding pregnant women, those with missing data and those with comorbid disease, a total of 12283 made up the study population...
2016: PloS One
https://www.readbyqxmd.com/read/27429632/one-year-follow-up-effect-of-renal-sympathetic-denervation-in-patients-with-resistant-hypertension
#20
Masoud Pourmoghaddas, Alireza Khosravi, Mohammadreza Akhbari, Mojtaba Akbari, Mohamadreza Pourbehi, Fereshteh Ziaei, Leila Salehizade, Nahid Sistan, Masoumeh Esmaeili, Peyman Bidram
BACKGROUND: Resistant hypertension is a common clinical problem of blood pressure that is not controlled despite the simultaneous application of multiple antihypertensive agents. Ablation of renal afferent nerves has been applied and proved to decrease hypertension and injuries produced by severe sympathetic hyperactivity. The main objective of this study was to investigate the long-term effect of renal artery sympathetic ablation and its complications in patients with treatment-resistant hypertension...
March 2016: ARYA Atherosclerosis
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