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https://www.readbyqxmd.com/read/28429184/interactive-effects-of-salicylic-acid-and-nitric-oxide-in-alleviating-zinc-toxicity-of-safflower-carthamus-tinctorius-l
#1
Shahram Namdjoyan, Hossein Kermanian, Ali Abolhasani Soorki, Sedigheh Modarres Tabatabaei, Nazli Elyasi
The purpose of this study was to assess the possible protective role of exogenous salicylic acid (SA), sodium nitroprusside (SNP), a donor of nitric oxide, and their combination on 21-day-old safflower (Carthamus tinctorius L.) seedlings grown under zinc (Zn) stress. The results revealed that exposure to 500 µM ZnSO4.7H2O for 10 days markedly reduced the root and shoot dry weights in Zn-treated plants, while the application of SA, SNP and specially SA + SNP significantly increased the root and shoot dry weights in seedlings subjected to Zn stress...
April 20, 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28428972/goldmann-applanation-tonometry-using-a-red-free-filter-for-mass-screening
#2
Shahram Bamdad, Yalda Vatan
No abstract text is available yet for this article.
2017: Medical Hypothesis, Discovery and Innovation in Ophthalmology
https://www.readbyqxmd.com/read/28428031/the-effect-of-hypoxia-preconditioning-on-the-neural-and-stemness-genes-expression-profiling-in-human-umbilical-cord-blood-mesenchymal-stem-cells
#3
Maryam Kheirandish, Somaie Piri Gavgani, Shahram Samiee
In recent years, human umbilical cord blood-derived mesenchymal stem cell (hUB-MSCs) has been regarded as an alternative source for stem cell therapy. In this study, we evaluated the effect of hypoxia preconditioning (HPC) on the expression of Nt-3, GFAP, Nestin, Oct-4 and Nanog genes and proliferative capacity of hUB-MSCs in comparison with normoxic conditions. HPC+Hypoxia protocol includes cultured hUB-MSCs for 15min at 2.5% O2 and after that reoxygenation for 30min at 21% O2 (HPC), and then hypoxia preconditioned hUB-MSCs subjected to 2...
March 31, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28425268/efficient-production-of-nanobodies-against-urease-activity-ofhelicobacter-pylori-in-pichia-pastoris
#4
Shahrbanoo Pourasadi, Seyed Latif Mousavi Gargari, Masoumeh Rajabibazl, Shahram Nazarian
BACKGROUND/AIM: Helicobacter pylori is a major health problem. One of the therapeutic approaches is administration of antibody against H. pylori. The methylotrophic Pichia pastoris is a suitable host for expression of recombinant antibody fragments. The aims of this study were the expression and the evaluation of camelid nanobody in the yeast Pichia pastoris. MATERIALS AND METHODS: The camelid-derived heavy-chain antibody (nanobody) against the UreC subunit of urease from H...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28425267/modifications-of-mice-gut-microflora-following-oral-consumption-oflactobacillus-acidophilus-and-bifidobacterium-bifidum-probiotics
#5
Hossein Khavari-Daneshvar, Maryam Mosavi, Hamid Khodayari, Ebrahim Rahimi, Peyman Ranji, Amir Hossein Mohseni, Reyhaneh Mahmudian, Farzad Shidfar, Shahram Agah, Ali Mohammad Alizadeh
BACKGROUND/AIM: Thirty male BALB/c mice were equally divided into three groups: control, L. acidophilus, and B. bifidum for the assessment of the probiotics' stability in the gut microflora. MATERIALS AND METHODS: First, the gut microflora of the mice was checked every 3 days (days 3, 6, 9, and 12) without probiotic consumption, and then the mice were daily given orally 1.5 g of probiotics in 30 cc of drinking water. The consumption of probiotics was then stopped for recovery and then the consumption continued for 5 months...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28424915/optimal-eye-movement-strategies-a-comparison-of-neurosurgeons-gaze-patterns-when-using-a-surgical-microscope
#6
Shahram Eivazi, Ahmad Hafez, Wolfgang Fuhl, Hoorieh Afkari, Enkelejda Kasneci, Martin Lehecka, Roman Bednarik
BACKGROUND: Previous studies have consistently demonstrated gaze behaviour differences related to expertise during various surgical procedures. In micro-neurosurgery, however, there is a lack of evidence of empirically demonstrated individual differences associated with visual attention. It is unknown exactly how neurosurgeons see a stereoscopic magnified view in the context of micro-neurosurgery and what this implies for medical training. METHOD: We report on an investigation of the eye movement patterns in micro-neurosurgery using a state-of-the-art eye tracker...
April 19, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28421149/eccrine-nevus-presenting-with-umbilical-discharge-a-case-report-and-review-of-the-literature
#7
Farahnaz Bidari-Zerehpoosh, Shahram Sabeti, Farid Arman, Hania Shakeri
Eccrine nevus is a rare skin lesion with protean manifestations like hyperhidrosis, discolored nodules, papules, and so forth, which has been reported in various anatomic parts of the body including the forearm, leg, thigh, back, and coccyx. Our patient was a 26-year-old male, who presented with increasing colorless and odorless episodic umbilical discharge. First impression for the patient was an umbilical sinus and the patient underwent surgery. Histopathological study revealed the lesion to be an eccrine nevus of the umbilicus...
2017: Case Reports in Dermatological Medicine
https://www.readbyqxmd.com/read/28416979/comparison-of-hemodynamic-effects-of-biventricular-versus-left-ventricular-only-pacing-in-patients-receiving-cardiac-resynchronization-therapy-a-before-after-clinical-trial
#8
Babak Faghfourian Md, Shahram Homayoonfar Md, Mahdi Rezvanjoo Md, Jalal Poorolajal Md PhD, Amir Hossein Emam Md
BACKGROUND: Biventricular (BiV) pacing is the most common mode of delivering cardiac resynchronization therapy (CRT). However, initial clinical studies have indicated that left ventricular (LV) pacing is not inferior to BiV pacing. This study was conducted to address whether LV only pacing can provide the same hemodynamic response as BiV pacing. METHODS: This before-after clinical trial was conducted at Ekbatan Hospital, from July 2012 to November 2014. Patients with a LV ejection fraction ≤35% and a QRS duration ≥0...
April 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28414950/a-nanobiosensor-composed-of-exfoliated-graphene-oxide-and-gold-nano-urchins-for-detection-of-gmo-products
#9
Zahra Aghili, Navid Nasirizadeh, Adeleh Divsalar, Shahram Shoeibi, Parichehreh Yaghmaei
Genetically Modified Organisms, have been entered our food chain and detection of these organisms in market products are still the main challenge for scientists. Among several developed detection/quantification methods for detection of these organisms, the electrochemical nanobiosensors are the most attended which are combining the advantages of using nanomaterials, electrochemical methods and biosensors. In this research, a novel and sensitive electrochemical nanobiosensor for detection/quantification of these organisms have been developed using nanomaterials; Exfoliated Graphene Oxide and Gold Nano-Urchins for modification of the screen-printed carbon electrode, and also applying a specific DNA probe as well as hematoxylin for electrochemical indicator...
March 6, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28412430/incremental-prognostic-value-of-stress-echocardiography-with-carotid-ultrasound-for-suspected-cad
#10
Shahram Ahmadvazir, Benoy N Shah, Konstantinos Zacharias, Roxy Senior
OBJECTIVES: This study hypothesized that ischemia and atherosclerosis assessment by ultrasound (US) may provide incremental prognostic information in patients with new-onset chest pain who do not have coronary artery disease (CAD). BACKGROUND: The clinical significance of atherosclerosis assessment by carotid US in patients undergoing stress echocardiography (SE) in such patients is unknown. METHODS: Consecutive patients with suspected angina but no history of CAD underwent simultaneous SE and US prospectively to assess myocardial ischemia and carotid plaque burden (CPB), respectively...
April 7, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28406547/factors-affecting-smartphone-adoption-for-accessing-information-in-medical-settings
#11
Iman Tahamtan, Sara Pajouhanfar, Shahram Sedghi, Mohsen Azad, Masoud Roudbari
OBJECTIVES: This study aimed to acquire knowledge about the factors affecting smartphone adoption for accessing information in medical settings in Iranian Hospitals. METHODS: A qualitative and quantitative approach was used to conduct this study. Semi-structured interviews were conducted with 21 medical residents and interns in 2013 to identify determinant factors for smartphone adoption. Afterwards, nine relationships were hypothesised. We developed a questionnaire to test these hypotheses and to evaluate the importance of each factor...
April 13, 2017: Health Information and Libraries Journal
https://www.readbyqxmd.com/read/28404232/pcr-based-molecular-characterization-of-blastocystis-hominis-subtypes-in-southwest-of-iran
#12
Shahram Khademvatan, Rahim Masjedizadeh, Ehsan Yousefi-Razin, Hamidreza Mahbodfar, Fakher Rahim, Elham Yousefi, Masoud Foroutan
Blastocystis hominis is the most common intestinal parasite found in humans and many other hosts. Pathogenicity of Blastocystis sp. remains controversial and it has been suggested that it may be associated with certain subtypes of organism. The aim of this study was to evaluate the molecular epidemiology of B. hominis and its subtype distribution in Ahvaz, southwest of Iran. During 2012-2014, a total of 481 samples were collected from patients referred to the medical laboratory centers in Ahvaz for stool examination...
April 9, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28398961/accreditation-council-for-graduate-medical-education-acgme-surgery-resident-operative-logs-the-last-quarter-century
#13
Frederick Thurston Drake, Shahram Aarabi, Brandon T Garland, Ciara R Huntington, Jarod P McAteer, Morgan K Richards, Nicole Kansier Zern, Kenneth W Gow
STUDY OBJECTIVE: To describe secular trends in operative experience for surgical trainees across an extended period using the most comprehensive data available, the Accreditation Council for Graduate Medical Education (ACGME) case logs. BACKGROUND: Some experts have expressed concern that current trainees are inadequately prepared for independent practice. One frequently mentioned factor is whether duty hours' restrictions (DHR) implemented in 2003 and 2004 contributed by reducing time spent in the operating room...
May 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28392818/comparison-of-push-out-bond-strength-of-two-bulk-fill-and-one-conventional-composite-to-intracanal-dentin-in-severely-damaged-primary-anterior-teeth
#14
Shahram Mosharrafian, Zeynab Sharifi
OBJECTIVES: This study sought to compare the push-out bond strength of two bulk-fill and one conventional composite to intracanal dentin in primary anterior teeth. MATERIALS AND METHODS: This in vitro, experimental study was conducted on 39 primary anterior teeth, which were randomly divided into three groups. After cleaning and shaping, the root canals were filled with Metapex in such a way that after the application of 1mm light-cure liner on top of it, the coronal 3mm of the canal remained empty for composite post space...
June 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28386470/determining-the-risk-of-intra-community-transmission-of-tuberculosis-in-the-northwest-of-iran-through-15-loci-miru-vntr-typing
#15
Ali Afaghi-Gharamaleki, Seyyedreza Moaddab, Mojtaba Darbouy, Khalil Ansarin, Shahram Hanifian
This study was carried out in order to investigating the effect of travelling on the transmission of tuberculosis from high- to low-burden TB countries. Mycobacteria samples isolated from patients of distinct and relatively co-related countries (Azerbaijan Republic and Tabriz [located in the northwest of Iran]) were analyzed through 15 loci MIRU-VNTR typing method. PCR was done using special primers for each of the loci; then the number of allele repeats for all loci were determined by the size of their fragments...
March 2017: European Journal of Microbiology & Immunology
https://www.readbyqxmd.com/read/28384043/association-of-%C3%AE-secretase-functional-polymorphism-with-risk-of-schizophrenia
#16
Simin Rahimi-Aliabadi, Neda Shahmohammadibeni, Javad Jamshidi, Ehsan Esmaili Shandiz, Reza Mirfakhraie, Mina Ohadi, Farhad Ramezani Nejad, Nader Mansoori, Mohammad Taheri, Fatemeh Gholipour, Susan Moudi, Gouya Tayebi, Shahram Divsalar, Hossein Darvish, Abolfazl Movafagh
AIM: The NRG1-ERBB4 neurotransmitter signaling pathway plays a key role in the pathogenesis of schizophrenia (SZ). The intronic single-nucleotide polymorphism rs707284 in ERBB4 links to PI3K-AKT suppression in SZ. Another protein indirectly affecting NRG1-ERBB4 signaling is β-secretase, which is encoded by the BACE1 gene, and activates NRG1 by proteolytic cleavage. In this study, we aimed to investigate the association of ERBB4 rs707284 and BACE1 rs490460 with the risk of SZ in an Iranian population...
April 2017: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/28378606/efficacy-of-nano-and-microemulsion-based-topical-gels-in-delivery-of-ibuprofen-an-in-vivo-study
#17
Mosayeb Azizi, Fariba Esmaeili, Ali Reza Partoazar, Shahram Ejtemaei Mehr, Amir Amani
AIM: Nanoemulsion have shown many advantages in drug delivery systems. In this study, for the first time, analgesic and anti-inflammatory properties of a nanomelusion of almond oil with and without ibuprofen was compared with corresponding microemulsion and commercial topical gel of the drug using formalin and carrageenan tests, respectively. METHOD: Almond oil (oil phase) was mixed with Tween 80 and Span 80 (surfactants), and ethanol (co-surfactant) and them distilled water (aqueous phase) was then added to the mixture at once...
April 5, 2017: Journal of Microencapsulation
https://www.readbyqxmd.com/read/28370284/induced-retro-differentiation-of-human-retinal-pigment-epithelial-cells-on-polyhema
#18
Fatemeh Nazemroaya, Zahra-Soheila Soheili, Shahram Samiei, Abdolkhalegh Deezagi, Hamid Ahmadieh, Malihe Davari, Razeih Heidari, Abouzar Bagheri, Shamila Darvishalipour-Astaneh
Retinal pigment epithelium (RPE) cells represent a great potential to rescue degenerated cells of the damaged retina. Activation of the virtually plastic properties of RPE cells may aid in recovery of retinal degenerative disorders without the need for entire RPE sheet transplantation. Poly (2-hydroxyethyl methacrylate)(PolyHEMA) is one of the most important hydrogels in the biomaterials world. This hydrophobic polymer does not normally support attachment of mammalian cells. In the current study we investigated the effect of PolyHEMA as a cell culture substrate on the growth, differentiation and plasticity of hRPE cells...
March 29, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28367523/stromal-cell-derived-factor-1-cxcr4-and-cxcr7-gene-transcripts-in-pterygia
#19
Shahram Bamdad, Behzad Khademi, Nooshin Chenari, Atta Taseh, Mahboobeh Razmkhah
PURPOSE: Pterygium is a pathologic process with angiogenic and tumor cell like characteristics. Chemokine and chemokine receptors may contribute to the formation and growth of pterygia. The aim of this study was to assess the expression of stromal cell derived factor (SDF)-1, as an angiogenic chemokine, and its receptors, CXCR4 and CXCR7, gene transcripts in pterygia. METHODS: RNA was extracted from tissue samples of 33 patients with primary pterygium and 35 volunteers with conjunctiva as the control group...
March 2017: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/28360447/botulism-outbreak-in-a-family-after-ingestion-of-locally-produced-cheese
#20
Shahram Rafie, Shokrollah Salmanzadeh, Asieh Mehramiri, Adel Nejati
Botulism is one of the most important foodborne diseases and is caused by Clostridium botulinum toxin. The main manifestations are flaccid muscle paralysis and cranial nerve palsies. Botulism is an essential health problem because of its high mortality. The diagnosis of botulism, especially in sporadic cases, is a medical challenge and a high clinical suspicion is necessary for early recognition. So, every physician should be familiar with its signs and symptoms for early detection and treatment. We describe a family with dysphasia and acute paralysis after the ingestion of locally made cheese...
March 2017: Iranian Journal of Medical Sciences
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