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https://www.readbyqxmd.com/read/29454300/gold-copper-bimetallic-nanoparticles-supported-on-nano-p-zeolite-modified-carbon-paste-electrode-as-an-efficient-electrocatalyst-and-sensitive-sensor-for-determination-of-hydrazine
#1
Fatemeh Amiripour, Seyed Naser Azizi, Shahram Ghasemi
In this report, a facile, efficient and low cost electrochemical sensor based on bimetallic Au-Cu nanoparticles supported on P nanozeolite modified carbon paste electrode (Au-Cu/NPZ/CPE) was constructed and its efficiency for determination of hydrazine in trace level was studied. For this purpose, agro waste material, stem sweep ash (SSA) was employed as the starting material (silica source) for the synthesis of nano P zeolite (NPZ). After characterization of the synthesized NPZ by analytical instruments (scanning electronic microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and Fourier transform infrared (FT-IR) spectroscopy), construction of Au-Cu/NPZ/CPE was performed by three steps procedure involving preparation of nano P zeolite modified carbon paste electrode (NPZ/CPE), introducing Cu +2 ions into nano zeolite structure by ion exchange and electrochemical reduction of Cu +2 ions upon applying constant potential...
February 5, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29453168/spatial-temporal-cluster-analysis-of-mortality-from-road-traffic-injuries-using-geographic-information-systems-in-west-of-iran-during-2009-2014
#2
Alireza Zangeneh, Farid Najafi, Saeed Karimi, Shahram Saeidi, Neda Izadi
INTRODUCTION: Road traffic injuries (RTIs) are considered as one of the most important health problems endangering people's life. The examination of the geographical distribution of RTIs could help policymakers in better planning to reduce RTIs. This study, therefore, aimed to determine the spatial-temporal clustering of mortality from RTIs in West of Iran. METHODS: Deaths from RTIs, registered in Forensic Medicine Organization of Kermanshah province over a period of six years (2009-2014), were used...
February 8, 2018: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/29442239/randomized-double-blind-clinical-trial-of-combined-treatment-with-megestrol-acetate-plus-celecoxib-versus-megestrol-acetate-alone-in-cachexia-anorexia-syndrome-induced-by-gi-cancers
#3
Bizhan Kouchaki, Ghasem Janbabai, Abbas Alipour, Shahram Ala, Samaneh Borhani, Ebrahim Salehifar
PURPOSE: Previous studies reported promising efficacy for celecoxib in the treatment of cancer cachexia. We designed this study to test the hypothesis that combination therapy with megestrol acetate (MA) plus celecoxib is superior to MA alone. METHODS: Ninety eligible gastrointestinal cancer patients randomly received either MA 320 mg/day plus placebo (arm1) or MA 320 mg/day plus celecoxib 200 mg/day (arm2). Patients were evaluated at baseline, then 1 and 2 months after starting interventions...
February 13, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29437523/risk-and-age-of-cardiovascular-event-in-women-with-metabolic-syndrome-menopause-age-in-focus
#4
Azam Soleimani, Ali Pourmoghaddas, Masoumeh Sadeghi, Hamidreza Roohafza, Mohammad Talaei, Minoo Dianatkhah, Shahram Oveisgharan, Maryam Soleimani, Nizal Sarrafzadegan
BACKGROUND: There is still a controversy about the causal relationship between menopause status and cardiovascular disease (CVD). The present study aimed to evaluate whether premature menopause would predict higher risk and lower the age of CVD occurrence and how this differs in women with metabolic syndrome (MetS). METHODS: Using a population-based Isfahan Cohort Study (ICS), 1154 postmenopause women were followed up from 2001 to 2013 for any CVD occurrence. Cox proportional hazards regression analyses were used to estimate the association between menopause age of (≤45, 46-50, 51-55, ≥56 years) and CVD incidence...
February 13, 2018: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/29435313/comparison-of-the-efficacy-of-intravenous-tranexamic-acid-with-and-without-topical-administration-versus-placebo-in-urgent-endoscopy-rate-for-acute-gastrointestinal-bleeding-a-double-blind-randomized-controlled-trial
#5
Nader Tavakoli, Marjan Mokhtare, Shahram Agah, Ali Azizi, Mohsen Masoodi, Hassan Amiri, Mehrdad Sheikhvatan, Bahare Syedsalehi, Behdad Behnam, Mehran Arabahmadi, Maryam Mehrazi
Background: Tranexamic acid (TXA), a synthetic antifibrinolytic drug, is effective as a treatment for serious hemorrhage, including bleeding arising from major trauma and post-operative interventions. Significant acute gastrointestinal bleeding may have a poor outcome despite routine medical and endoscopic treatments. The aim of this study was to assess whether early intravenous and/or intravenous plus topical administration of TXA reduces the need for urgent endoscopy for acute gastrointestinal bleeding...
February 2018: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/29433621/effect-of-stevia-rebaudiana-bertoni-extract-on-sexual-dysfunction-in-streptozotocin-induced-diabetic-male-rats
#6
Matin Ghaheri, Shahram Miraghaee, Atefeh Babaei, Bahareh Mohammadi, Danial Kahrizi, Zahra Minoosh Saivosh Haghighi, Gholamreza Bahrami
Stevia rebaudiana Bertoni has been used locally as a non-calorie sweetener in medicine and diabetic diet which claimed to have aphrodisiac properties, although no scientific data of this function have been reported. The aim of this study was to investigate the effect of S. rebaudiana extract on sexual dysfunction, testosterone levels and number of Leydig cells in Streptozotocin (STZ)-induced diabetic male rats. A total of 28 diabetic male rats were randomly divided into 4 groups: diabetic group without any extract and 3 extract groups (5, 50 and 100 mg/kg)...
February 10, 2018: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/29431171/the-upgoing-thumb-sign-an-interobserver-intraobserver-reliability-study
#7
Shahram Abootalebi, Mahmoud Reza Azarpazhooh, Luciano Sposato, Vladimir Hachinski
Background: The upgoing thumb sign as a subtle clinical finding of upper motor neuron involvement has been frequently reported in patients with TIAs and minor strokes. This study was designed to show the method of examination and interpretation and the interobserver/intraobserver reliability. Methods: The thumb sign was elicited in TIA/minor strokes or stroke mimics. After obtaining the participant's permission, the examinations were recorded. Two independent neurologists reviewed all patients for the possibility of an upgoing thumb sign...
December 2017: Neurology. Clinical Practice
https://www.readbyqxmd.com/read/29427977/salinity-stress-accelerates-the-effect-of-cadmium-toxicity-on-soil-n-dynamics-and-cycling-does-joint-effect-of-these-stresses-matter
#8
Fayez Raiesi, Mahshid Razmkhah, Shahram Kiani
The objective of this study was to determine responses of soil nitrogen (N) transformation, microbial biomass N, and urease activity to the combined effect of cadmium (Cd) toxicity (0 and 30 mg kg-1) and NaCl stress (0, 7.5 and 15 dS m-1) in a clay loam soil unamended (0%) or amended with alfalfa residues (1%, w/w). Cd, NaCl, and alfalfa residues were added to the soil, and the mixtures were incubated for 90 days under standard laboratory conditions (25 ± 1 °C and 70% of water holding capacity [WHC])...
February 7, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29427276/effect-of-biochar-on-growth-and-ion-contents-of-bean-plant-under-saline-condition
#9
Salar Farhangi-Abriz, Shahram Torabian
A pot experiment was conducted with three biochar ratios (non-biochar, 5, and 10% total pot mass) and three salinities (control, 6, and 12 dSm-1 sodium chloride) treatments. At the flowering stage, we harvested common bean (Phaseolus vulgaris L. cv. Derakhshan) plants and measured growth characteristics and nutrient contents. As an average, salt stress decreased shoot and root dry weight, leaf area, relative water content, chlorophyll fluorescence (Fv/Fm) and leaf chlorophyll content, however, increased root length, sodium (Na) content of root and shoot, Na uptake, and translocation of bean plants, compared to control...
February 9, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29423152/suppurative-appendicitis-presenting-acute-scrotal-pain-a-rare-condition-may-confuse-surgeons
#10
Shahriar Najafizadeh-Sari, Hamidreza Mehdizadeh, Mohammad Sadegh Bagheri-Baghdasht, Shahram Manoochehry
Scrotal pain presentation has many differential diagnoses such as testicular torsion is surgical emergency. For this reason, it is necessary for surgeons to differentiate between diseases for choosing the best treatment approach. We have reported a rare condition of 19-year-old male case had an atypical scrotal pain presentation of appendicitis. He was admitted to emergency service with 4 days history of pain in abdomen and testis. In physical examination, there is tenderness in right lower quadrant, right inguinal region and scrotum...
October 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29421775/increased-urine-interleukin-17-and-interleukin-22-levels-in-patients-with-candidal-urinary-tract-infection
#11
Kazem Ahmadikia, Parivash Kordbacheh, Pejman Shadpour, Sanam Nami, Abdolfattah Sarrafnejad, Mahmood Mahmoodi, Mahin Safara, Mohsen Rokni, Mohammad Yarahmadi, Shahram Mahmoudi, Mahdis Khezri, Farideh Zaini
INTRODUCTION: Candiduria is common in the hospitalized patients. This study aimed to quantify interleukin (IL)-17 and IL-22 levels in urine of candiduric patients. MATERIALS AND METHODS: A case-control study was conducted on inpatients at Hashemi Nejad Kidney Center. Thirty-four patients were identified with Candida species in their urine samples (> 103 colony-forming units per milliliter and presence of Candida species only). Urine samples with concomitant infections were excluded...
January 2018: Iranian Journal of Kidney Diseases
https://www.readbyqxmd.com/read/29415154/temperature-and-exposure-time-in-cold-storage-reshape-parasitic-performance-of-habrobracon-hebetor-hymenoptera-braconidae
#12
Majeed Askari Seyahooei, Akhtar Mohammadi-Rad, Shahram Hesami, Abdoolnabi Bagheri
Cold storage can extend shelf life of parasitoids for use in biocontrol. However, cold storage may have negative impacts on life history traits of the parasitoids and, therefore, on their performance as biocontrol agents. Here, we examine the effect of cold storage on life history traits of Habrobracon hebetor (Say) (Hymenoptera: Braconidae), a parasitoid of several economic lepidopteran pests. Newly emerged wasps were stored at three constant temperatures (3°C, 5°C, 7°C) for up to 4 wk. Both temperature and exposure time significantly affected longevity, parasitism, fecundity, and sex ratio...
February 5, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29408953/skin-biopsy-findings-in-patients-with-cmt1a-baseline-data-from-the-cln-pxt3003-01-study-provide-new-insights-into-the-pathophysiology-of-the-disorder
#13
Mathilde Duchesne, Aurore Danigo, Laurence Richard, Jean-Michel Vallat, Shahram Attarian, Pierre-Marie Gonnaud, Arnaud Lacour, Yann Péréon, Tania Stojkovic, Klaus-Armin Nave, Viviane Bertrand, Serguei Nabirotchkin, Daniel Cohen, Claire Demiot, Laurent Magy
Charcot-Marie-Tooth disease type 1A (CMT1A), the most common form of Charcot-Marie-Tooth diseases, is a demyelinating neuropathy caused by a deletion encompassing the gene coding for PMP22, a myelin protein of the peripheral nervous system. Although myelinated fibers are mostly involved in CMT1A, some patients experience neuropathic pain. We thus investigated whether unmyelinated fibers are lost in CMT1A. Skin biopsies were taken from the distal portion of the leg of 80 patients with CMT1A as part of the PXT30003-01 study and processed for quantification of intraepidermal nerve fiber density (IENFD)...
February 2, 2018: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/29407928/a-novel-n-n-bis-acetylacetone-ethylenediimine-functionalized-silica-core-shell-magnetic-nanosorbent-for-manetic-dispersive-solid-phase-extraction-of-copper-in-cereal-and-water-samples
#14
Maryam Azizi, Shahram Seidi, Ahmad Rouhollahi
Determination of heavy metals at trace levels has a great deal of importance due to their undesirable effects on human life. In this study, N,N'-bis (acetyl acetone) ethylenediimine (Fe3O4@SiO2-EDN) was synthesized and applied for dispersive solid phase extraction of copper in water and cereal samples followed by FAAS. Sorbent characterization was investigated by SEM, FT-IR, EDX and VSM. The effective parameters were optimized using a central composite design. Under the optimal conditions, LOD (S/N = 3) and LOQ, preconcentration factor and RSD% were found to be 1...
May 30, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29404790/microrna-expression-levels-and-histopathological-features-of-colorectal-cancer
#15
Sahar Sarmasti Emami, Abolfazl Akbari, Ali-Akbar Zare, Shahram Agah, Mohsen Masoodi, Atefeh Talebi, Sara Minaeian, Azam Fattahi, Farahnaz Moghadamnia
INTRODUCTION: Non-coding RNAs have opened a new window in cancer biology. MicroRNAs (miRNAs), as a family of non-coding RNAs, play an important role in the gene regulation. The aberrant expression of these small molecules has been documented to involve in colorectal cancer (CRC) pathogenesis. This study aimed to examine the expression of miRNAs in CRC and to correlate their expression levels with histological markers (Ki-67 and CD34). MATERIALS AND METHODS: Tumor tissues and matched normal adjacent tissues were collected from 36 patients with newly diagnosed CRC...
February 6, 2018: Journal of Gastrointestinal Cancer
https://www.readbyqxmd.com/read/29403623/explaining-the-role-of-organizational-culture-on-succession-planning-at-the-ministry-of-health-and-medical-education-a-qualitative-study
#16
Mohammad Mehrtak, Esmaeil Farzaneh, Shahram Habibzadeh, Aziz Kamran, Hamed Zandian, Abdollah Mahdavi
Background: Developing and guiding new knowledge are futile unless the organizational culture can also be transformed. Future leaders cannot emerge out of an organizational environment that is not conducive to the accumulation of experiences. Objective: The aim of this study was to explore the role of organizational culture in creating a succession-planning system at the Ministry of Health and Medical Education in 2014. Methods: The present qualitative framework analysis held interviews with 23 director generals, administrative directors and deputies from the headquarters of the Iranian Ministry of Health and Medical Education in 2014 who were selected through snowball sampling...
November 2017: Electronic Physician
https://www.readbyqxmd.com/read/29399728/vessel-segmentation-and-catheter-detection-in-x-ray-angiograms-using-superpixels
#17
Hamid R Fazlali, Nader Karimi, S M Reza Soroushmehr, Shahram Shirani, Brahmajee K Nallamothu, Kevin R Ward, Shadrokh Samavi, Kayvan Najarian
Coronary artery disease (CAD) is the leading cause of death around the world. One of the most common imaging methods for diagnosing CAD is the X-ray angiography (XRA). Diagnosing using XRA images is usually challenging due to some reasons such as, non-uniform illumination, low contrast, presence of other body tissues, and presence of catheter. These challenges make the diagnosis task hard and more prone to misdiagnosis. In this paper, we propose a new method for coronary artery segmentation, catheter detection, and centerline extraction in X-ray angiography images...
February 5, 2018: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29399580/immunogenicity-of-the-nanovaccine-containing-intimin-recombinant-protein-in-the-balb-c-mice
#18
Zahra Sadat Hosseini, Jafar Amani, Fahimeh Baghbani Arani, Shahram Nazarian, Mohammad Javad Motamedi, Fatemeh Shafighian
Purpose: Escherichia coli O157:H7 is one of the most important pathogens which create hemorrhagic colitis and hemolytic uremic syndrome in human. It is one of the most prevalent causes of diarrhea leading to death of many people every year. The first diagnosed gene in the locus of enterocyte effacement pathogenicity island is eae gene. The product of this gene is a binding protein called intimin belonging to the group of external membrane proteins regarded as a good stimulants of the immune system...
January 2018: Clinical and Experimental Vaccine Research
https://www.readbyqxmd.com/read/29396051/expression-analysis-of-cytokine-coding-genes-in-epileptic-patients
#19
Mehrdokht Mazdeh, Mir Davood Omrani, Arezou Sayad, Alierza Komaki, Shahram Arsang-Jang, Mohammad Taheri, Soudeh Ghafouri-Fard
Epilepsy is a chronic disorder in which immune dysregulation is shown to be involved. Imbalances in the cytokine levels both in serum and brain tissue have been demonstrated in epileptic patients. In the present study, we assessed mRNA expression of TNF-α, TGF-β, IFN-γ, CXCL8, IL-1β, IL-2, 1L-4, IL-6, IL-17 and CXCL8 in blood samples of 40 epileptic patients compared with age- and sex-matched healthy controls by means of quantitative real time PCR. The relative levels of CXCL8 transcripts were significantly higher in total epileptic patients compared with healthy subjects (P = ...
January 29, 2018: Cytokine
https://www.readbyqxmd.com/read/29393001/a-combined-computational-experimental-study-on-hsa-binding-of-two-water-soluble-schiff-base-ligands-derived-from-pyridine-derivative-and-ethylendiamine
#20
Hajar Molaee, Mehdi Sahihi, Majid Moghadam, Valiollah Mirkhani, Shahram Tangestaninejad, Iraj Mohammadpoor-Baltork, Hadi Amiri Rudbari
No abstract text is available yet for this article.
February 2, 2018: Journal of Biomolecular Structure & Dynamics
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