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https://www.readbyqxmd.com/read/29160346/effect-of-tio2-nanoparticles-incorporation-on-antibacterial-properties-and-shear-bond-strength-of-dental-composite-used-in-orthodontics
#1
Ahmad Sodagar, Mohamad Sadegh Ahmad Akhoundi, Abbas Bahador, Yasamin Farajzadeh Jalali, Zahra Behzadi, Farideh Elhaminejad, Amir Hossein Mirhashemi
INTRODUCTION: Plaque accumulation and bond failure are drawbacks of orthodontic treatment, which requires composite for bonding of brackets. As the antimicrobial properties of TiO2 nanoparticles (NPs) have been proven, the aim of this study was to evaluate the antimicrobial and mechanical properties of composite resins modified by the addition of TiO2 NPs. METHODS: Orthodontics composite containing 0%, 1%, 5% and 10% NPs were prepared. 180 composite disks were prepared for elution test, disk agar diffusion test and biofilm inhibition test to collect the counts of microorganisms on three days, measure the inhibition diameter and quantify the viable counts of colonies consequently...
September 2017: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/29159414/hepatitis-b-vaccination-screening-and-linkage-to-care-best-practice-advice-from-the-american-college-of-physicians-and-the-centers-for-disease-control-and-prevention
#2
Winston E Abara, Amir Qaseem, Sarah Schillie, Brian J McMahon, Aaron M Harris
Background: Vaccination, screening, and linkage to care can reduce the burden of chronic hepatitis B virus (HBV) infection. However, recommendations vary among organizations, and their implementation has been suboptimal. The American College of Physicians' High Value Care Task Force and the Centers for Disease Control and Prevention developed this article to present best practice statements for hepatitis B vaccination, screening, and linkage to care. Methods: A narrative literature review of clinical guidelines, systematic reviews, randomized trials, and intervention studies on hepatitis B vaccination, screening, and linkage to care published between January 2005 and June 2017 was conducted...
November 21, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/29159230/dataset-on-the-spent-filter-backwash-water-treatment-by-sedimentation-coagulation-and-ultra-filtration
#3
Mokhtar Mahdavi, Afshin Ebrahimi, Hossein Azarpira, Hamid Reza Tashauoei, Amir Hossein Mahvi
During operation of most water treatment plants, spent filter backwash water (SFBW) is generated, which accounts about 2-10% of the total plant production. By increasing world population and water shortage in many countries, SFBW can be used as a permanent water source until the water treatment plant is working. This data article reports the practical method being used for water reuse from SFBW through different method including pre-sedimentation, coagulation and flocculation, second clarification, ultra filtration (UF) and returned settled SFBW to the beginning of water treatment plant (WTP)...
December 2017: Data in Brief
https://www.readbyqxmd.com/read/29159228/data-on-water-quality-index-for-the-groundwater-in-rural-area-neyshabur-county-razavi-province-iran
#4
Mahmood Yousefi, Hossein Najafi Saleh, Ali Akbar Mohammadi, Amir Hossein Mahvi, Mansour Ghadrpoori, Hamed Suleimani
Public health is at risk from physical and chemical contaminants in the drinking water which may have immediate health consequences. The data from the current study was evaluated for groundwater quality in the rural villages of Neyshabur County in Iran. For determination of the essential physicochemical parameters, water samples were collected from 30 randomly-selected water wells during 2013 and 2014. The samples were tested in situ to measure physical parameters of pH and electrical conductivity and chemical parameters of total dissolved solids, total hardness and levels of calcium, magnesium, carbonates, bicarbonates, sodium, potassium, chloride and sulfates...
December 2017: Data in Brief
https://www.readbyqxmd.com/read/29158882/the-mediating-role-of-a2a-adenosine-receptors-in-the-mitochondrial-pathway-of-apoptotic-hippocampal-cell-death-following-the-administration-of-mdma-in-rat
#5
Masoomeh Bakhshayesh, Fereshteh Golab, Fatemeh Kermanian, Mehdi Mehdizadeh, Amir Reza Katebi, Mansooreh Soleimani, Farzaneh Mohammadzadeh, Ronak Shabani, Elham Movahed, Majid Katebi
Introduction: The 3,4-methylenedioxymethamphetamine (MDMA, ecstasy) is a popular recreational drug and a major source of substance abuse, which ultimately leads to sensations of well-being, elation and euphoria, moderate derealization/depersonalization, and cognitive disruptions, as well as intense sensory awareness. The mechanisms involved in memory impairment induced by MDMA are not completely understood. Methods: The current study used 40 Sprague-Dawley rats, weighted 200 to 250 g...
July 2017: Basic and Clinical Neuroscience
https://www.readbyqxmd.com/read/29158879/changes-in-effective-connectivity-network-patterns-in-drug-abusers-treated-with-different-methods
#6
Arash Zare Sadeghi, Amir Homayoun Jafari, Mohammad Ali Oghabian, Hamid Reza Salighehrad, Seyed Amir Hossein Batouli, Samira Raminfard, Hamed Ekhtiari
Introduction: Various treatment methods for drug abusers will result in different success rates. This is partly due to different neural assumptions and partly due to various rate of relapse in abusers because of different circumstances. Investigating the brain activation networks of treated subjects can reveal the hidden mechanisms of the therapeutic methods. Methods: We studied three groups of subjects: heroin abusers treated with abstinent based therapy (ABT) method, heroin abusers treated with Methadone Maintenance Therapy (MMT) method, and a control group...
July 2017: Basic and Clinical Neuroscience
https://www.readbyqxmd.com/read/29158877/functional-brain-connectivity-differences-between-different-adhd-presentations-impaired-functional-segregation-in-adhd-combined-presentation-but-not-in-adhd-inattentive-presentation
#7
Amir Hossein Ghaderi, Mohammad Ali Nazari, Hassan Shahrokhi, Amir Hossein Darooneh
Introduction: Contrary to Diagnostic and Statistical Manual of Mental Disorders (DSM-5), fifth edition, some studies indicate that ADHD-inattentive presentation (ADHD-I) is a distinct diagnostic disorder and not an ADHD presentation. Methods: In this study, 12 ADHD-combined presentation (ADHD-C), 10 ADHD-I, and 13 controls were enrolled and their resting state EEG recorded. Following this, a graph theoretical analysis was performed and functional integration and segregation of brain network was calculated...
July 2017: Basic and Clinical Neuroscience
https://www.readbyqxmd.com/read/29158771/implementation-and-evaluation-of-community-based-drop-in-centres-for-breastfeeding-support-in-victoria-australia
#8
Rhian L Cramer, Helen L McLachlan, Touran Shafiei, Lisa H Amir, Meabh Cullinane, Rhonda Small, Della A Forster
Background: While Australia has high breastfeeding initiation, there is a sharp decline in the first weeks postpartum and this continues throughout the first year. Supporting breastfeeding In Local Communities (SILC) was a three-arm cluster randomised controlled trial to determine whether early home-based breastfeeding support by a maternal and child health nurse (SILC-MCHN), with or without access to a community-based breastfeeding drop-in centre, increased the proportion of infants receiving any breast milk at three, four and six months...
2017: International Breastfeeding Journal
https://www.readbyqxmd.com/read/29158531/non-criticality-of-interaction-network-over-system-s-crises-a-percolation-analysis
#9
Amir Hossein Shirazi, Abbas Ali Saberi, Ali Hosseiny, Ehsan Amirzadeh, Pourya Toranj Simin
Extraction of interaction networks from multi-variate time-series is one of the topics of broad interest in complex systems. Although this method has a wide range of applications, most of the previous analyses have focused on the pairwise relations. Here we establish the potential of such a method to elicit aggregated behavior of the system by making a connection with the concepts from percolation theory. We study the dynamical interaction networks of a financial market extracted from the correlation network of indices, and build a weighted network...
November 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29157518/mechanical-circulatory-support-for-high-risk-pulmonary-embolism
#10
REVIEW
Mahir Elder, Nimrod Blank, Adi Shemesh, Mohit Pahuja, Amir Kaki, Tamam Mohamad, Theodore Schreiber, Jay Giri
Temporary mechanical circulatory support (MCS) devices have a role in treating high-risk patients with pulmonary embolism with cardiogenic shock. Mechanical circulatory device selection should be made based on center experience and device-specific features. All current devices are effective in decreasing right arterial pressure and providing circulatory support of 4 to 5 L/min. The pulmonary artery pulsatility index may prove to be an unreliable method to assess right ventricular function. Careful clinical evaluation on an individual patient basis should determine the need for MCS...
January 2018: Interventional cardiology clinics
https://www.readbyqxmd.com/read/29156144/breastfeeding-practices-and-barriers-to-implementing-the-ten-steps-to-successful-breastfeeding-in-mississippi-hospitals
#11
Amir Alakaam, Jennifer Lemacks, Kathleen Yadrick, Carol Connell, Hwanseok Winston Choi, Ray G Newman
BACKGROUND: Mississippi has the lowest rates of breastfeeding in the United States at 6 and 12 months. There is growing evidence that the rates and duration of infant breastfeeding improve after hospitals implement the Ten Steps to Successful Breastfeeding; moreover, the Ten Steps approach is considered the standard model for evaluation of breastfeeding practices in birthplaces. Research aim: This study aimed to examine the implementation level of the Ten Steps and identify barriers to implementing the Ten Steps in Mississippi hospitals...
November 1, 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/29155734/structural-characterization-of-mannan-cell-wall-polysaccharides-in-plants-using-pace
#12
Venkataramana R Pidatala, Amir Mahboubi, Jenny C Mortimer
Plant cell wall polysaccharides are notoriously difficult to analyze, and most methods require expensive equipment, skilled operators, and large amounts of purified material. Here, we describe a simple method for gaining detailed polysaccharide structural information, including resolution of structural isomers. For polysaccharide analysis by gel electrophoresis (PACE), plant cell wall material is hydrolyzed with glycosyl hydrolases specific to the polysaccharide of interest (e.g., mannanases for mannan). Large format polyacrylamide gels are then used to separate the released oligosaccharides, which have been fluorescently labeled...
October 16, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29155256/role-of-toll-like-receptors-in-inflammatory-bowel-disease
#13
REVIEW
Nastaran Kordjazy, Arvin Haj-Mirzaian, Arya Haj-Mirzaian, Mohammad Mojtaba Rohani, Erwin W Gelfand, Nima Rezaei, Amir Hossein Abdolghaffari
Inflammatory bowel disease (IBD) is the chronic inflammation of the gastrointestinal tract. Recently, studies of the interplay between the adaptive and innate immune responses have provided a better understanding of the immunopathogenesis of inflammatory disorders such as IBD, as well as identification of novel targets for more potent interventions. Toll-like receptors (TLRs) are a class of proteins that play a significant role in the innate immune system and are involved in inflammatory processes. Activation of TLR signal transduction pathways lead to the induction of numerous genes that function in host defense, including those for inflammatory cytokines, chemokines, and antigen presenting molecules...
November 16, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29155194/a-case-of-prenatally-diagnosed-wilms-tumor-managed-with-laparoscopic-nephrectomy
#14
Amir Toussi, Candace F Granberg, Patricio C Gargollo
We present a case of prenatally diagnosed Wilms' tumor, subsequent operative approach and management. The patient was referred to our institution with an abnormal prenatal renal ultrasound. CT scan after delivery showed a multifocal enhancing left renal mass. She underwent an uncomplicated left laparoscopic radical nephrectomy and retroperitoneal lymph node sampling using a novel hidden incision endoscopic surgery (HIdES) technique. Final pathology revealed favorable histology Stage II Wilms' Tumor. She received adjuvant chemotherapy with Vincristine and Dactinomycin based on the EE4A regimen...
November 16, 2017: Urology
https://www.readbyqxmd.com/read/29154569/the-social-transmission-of-risk-maternal-stress-physiology-synchronous-parenting-and-well-being-mediate-the-effects-of-war-exposure-on-child-psychopathology
#15
Galit Halevi, Amir Djalovski, Yaniv Kanat-Maymon, Karen Yirmiya, Orna Zagoory-Sharon, Lee Koren, Ruth Feldman
While chronic early stress increases child susceptibility to psychopathology, risk and resilience trajectories are shaped by maternal social influences whose role requires much further research in longitudinal studies. We examined the social transmission of risk by assessing paths leading from war-exposure to child symptoms as mediated by 3 sources of maternal social influence; stress physiology, synchronous parenting, and psychiatric disorder. Mothers and children living in a zone of continuous war were assessed in early childhood (1...
November 2017: Journal of Abnormal Psychology
https://www.readbyqxmd.com/read/29152548/quantitative-assessment-of-heterogeneity-in-bladder-tumor-mri-diffusivity-can-response-be-predicted-prior-to-neoadjuvant-chemotherapy
#16
Huyen T Nguyen, Amir Mortazavi, Kamal S Pohar, Debra L Zynger, Lai Wei, Zarine K Shah, Guang Jia, Michael V Knopp
Background: It is a critical unmet need to predict chemosensitivity in muscle-invasive bladder cancer patients who receive neoadjuvant chemotherapy (NAC). Quantification of tumor heterogeneity has been shown to be useful in the assessment of therapeutic response. Apparent diffusion coefficient (ADC) is derived from diffusion weighted MRI (DWI) to quantify the water diffusivity which characterizes micro-cellularity in tumor tissues. Objective: The aim of this study is to assess if a quantitative measurement of ADC heterogeneity in bladder tumors can be a predictor of therapeutic response to NAC...
October 27, 2017: Bladder Cancer
https://www.readbyqxmd.com/read/29151205/filamentous-bacteriophage-viruses-preparation-magic-angle-spinning-solid-state-nmr-experiments-and-structure-determination
#17
Omry Morag, Nikolaos G Sgourakis, Gili Abramov, Amir Goldbourt
Filamentous bacteriophages are elongated semi-flexible viruses that infect bacteria. They consist of a circular single-stranded DNA (ssDNA) wrapped by a capsid consisting of thousands of copies of a major coat protein subunit. Given the increasing number of discovered phages and the existence of only a handful of structures, the development of methods for phage structure determination is valuable for biophysics and structural virology. In recent years, we developed and applied techniques to elucidate the 3D atomic-resolution structures of intact bacteriophages using experimental magic-angle spinning (MAS) solid-state NMR data...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29151109/reporting-of-randomized-trials-in-common-cancers-in-the-lay-media
#18
Domen Ribnikar, Hadar Goldvaser, Alberto Ocana, Arnoud J Templeton, Bostjan Seruga, Eitan Amir
BACKGROUND: Limited data exist about the role of the lay media in the dissemination of results of randomized controlled trials (RCTs) in common cancers. METHODS: Completed phase III RCTs evaluating new drugs in common cancers between January 2005 and October 2016 were identified from ClinicalTrials.gov. Lay media reporting was identified by searching LexisNexis Academic. Scientific reporting was defined as presentation at an academic conference or publication in full...
November 18, 2017: Oncology
https://www.readbyqxmd.com/read/29150944/toll-like-receptor-signaling-pathway-as-a-potential-therapeutic-target-in-colorectal-cancer
#19
REVIEW
Reyhaneh Moradi-Marjaneh, Seyed Mahdi Hassanian, Hamid Fiuji, Saman Soleimanpour, Gordon A Ferns, Amir Avan, Majid Khazaei
Toll like receptor (TLR) signaling is involved in activating innate and adaptive immune responses and plays a critical role in inflammation-induced diseases such as colorectal cancer (CRC). Dysregulation of this signaling pathway can result in disturbance of epithelial layer hemostasis, chronic inflammatory, excessive repair responses and development of CRC. There is now substantial evidence for the benefit of targeting of this pathway in cancer treatment, and several agents have been approved, such as BCG (Bacillus Calmette Guérin), MPL (monophosphoryl lipid A) and imiquimod...
November 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29150934/the-current-status-and-perspectives-regarding-the-clinical-implication-of-intracellular-calcium-in-breast-cancer
#20
REVIEW
Amir Tajbakhsh, Alireza Pasdar, Mehdi Rezaee, Mostafa Fazeli, Saman Soleimanpour, Seyed Mahdi Hassanian, Zahra FarshchiyanYazdi, Tayebe Younesi Rad, Gordon A Ferns, Amir Avan
Calcium ions (Ca(2+) ) act as second messengers in intracellular signaling. Ca(2+) pumps, channels, sensors, and calcium binding proteins, regulate the concentrations of intracellular Ca(2+) as a key regulator of important cellular processes such as gene expression, proliferation, differentiation, DNA repair, apoptosis, metastasis, and hormone secretion. Intracellular Ca(2+) also influences the functions of several organelles, that include: the endoplasmic reticulum, mitochondria, the Golgi, and cell membrane both in normal and breast cancer cells...
November 18, 2017: Journal of Cellular Physiology
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