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Cagri Yuksel, Seheryeli Yilmaz, Ariana Nesbit, Gresa Carkaxhiu, Caitlin Ravichandran, Paola Salvatore, Samira Pingali, Bruce Cohen, Dost Ongur
Bizarre delusions (BizD) are not specific to schizophrenia (SZ) and can be found in other psychotic disorders. However, to date, there are no studies investigating socio-demographic and clinical characteristics associated with BizD across the psychosis spectrum. In this study 819 subjects with a diagnosis of SZ (n = 250), schizoaffective disorder (SZA) (n = 228) and bipolar I disorder (BD) (n = 341) were included. Patients with history of BizD and with no BizD were compared with respect to socidemographic and clinical variables, and predictors of BizD were explored...
February 9, 2018: Asian Journal of Psychiatry
Larissa Barbosa Lopes, Samira Ali Abbas, Elyse Moritz, Juliana Oliveira Martins, Akemi Kuroda Chiba, Dante Mário Langhi, José O Bordin
BACKGROUND: Neonatal alloimmune neutropenia results from maternal alloimmunization to human neutrophil antigens. The alloantibodies involved in neonatal alloimmune neutropenia are against human neutrophil antigens HNA-1a, HNA-1b, HNA-1c, HNA-1d, HNA-2, HNA-3a, HNA-4a, HNA-4b, and HNA-5a; however, to date, antibodies specific to HNA-3b have not been reported. STUDY DESIGN AND METHODS: Blood samples from 10,000 unselected neonates were analyzed, resulting in the selection of 88 neutropenic newborns (neutrophil count <1...
February 16, 2018: Transfusion
Hamed Akbarzadeh, Mohsen Abbaspour, Esmat Mehrjouei, Samira Ramezanzadeh
Recently, it has been reported that small Pt/Co bimetallic nanoclusters into hollow carbon spheres (HCS) show outstanding catalytic performances in deriving biomass fuels due to the small particle size and the homogeneous alloying. Thus, the knowledge about the thermal evolution and stability of the nanoclusters into the HCS has a great importance. We have simulated the heating process beyond the melting point for the bare and encapsulated Pt/Co clusters into the HCS with the different sizes of 55, 147, and 309...
February 15, 2018: Journal of Computational Chemistry
Tiago Rosado, David Oppolzer, Belinda Cruz, Mário Barroso, Samira Varela, Victor Oliveira, Carlos Leitão, Eugenia Gallardo
RATIONALE: Antipsychotic drugs are prescription medications used to treat psychotic disorders, such as schizophrenia, schizoaffective disorder, or psychotic depression. With several antipsychotic drugs currently available all over the world, this class of drugs has quickly gotten importance in both clinical and forensic context. This work describes the development and validation of a methodology for the determination of seven antipsychotic drugs in plasma and oral fluid samples. METHODS: The antipsychotic drugs (chlorpromazine, clozapine, haloperidol, olanzapine, quetiapine, cyamemazine and, levomepromazine) were isolated from 0...
February 15, 2018: Rapid Communications in Mass Spectrometry: RCM
Samira Bouaouli, Kim Spielmann, Emmanuel Vrancken, Jean-Marc Campagne, Hélène Gérard
Exchange of X (F, Cl and OMe) and a substituted enolate chain between SiMe3 and various Cu(I) complexes has been examined. Reaction mechanisms go through a cyclic transition state in which the reaction coordinate is associated to the rotation of the SiMe3 moiety. The dependence of the thermodynamic and kinetic features to the nature of the active and ancillary ligand was examined. Formation of copper enolate is shown to be favoured when stabilized enolates are used. Replacement of F by Cl reverses the preference of the reaction...
February 15, 2018: Chemistry: a European Journal
Jafar Sadegh Tabrizi, Ramin Rezapour, Mohammad Saadati, Samira Seifi, Behnam Amini, Farahnaz Varmazyar
Background: Non-standard management of medical waste leads to irreparable side effects. This issue is of double importance in health care centers in a city which are the most extensive system for providing Primary Health Care (PHC) across Iran cities. This study investigated the medical waste management standards observation in Tabriz community health care centers, northwestern Iran. Methods: In this triangulated cross-sectional study (qualitative-quantitative), data collecting tool was a valid checklist of waste management process developed based on Iranian medical waste management standards...
February 2018: Iranian Journal of Public Health
Lisa Ha Barstad, Pétur B Júlíusson, Line Kristin Johnson, Jens Kristoffer Hertel, Samira Lekhal, Jøran Hjelmesæth
BACKGROUND: Obesity during adolescence is associated with cardiovascular mortality in adulthood. The adverse obesity-related cardiometabolic risk profile is already observed in adolescence. We aimed to examine possible gender differences in cardiometabolic risk factors and lifestyle behaviors among adolescents with severe obesity, hypothesizing that boys would have both a higher prevalence of the metabolic syndrome as well as less healthy lifestyle behaviors than girls. METHODS: Cross-sectional study of treatment-seeking adolescents with severe obesity who attended the Morbid Obesity Centre at Vestfold Hospital Trust and who were consecutively enrolled in the Vestfold Register of Obese Children between September 2009 and September 2015...
February 14, 2018: BMC Pediatrics
Sattar Ostadhadi, Abouzar Moradi, Samira Zolfaghari, Vahid Nikoui, Ahmad Reza Dehpour
Organophosphates (OPs) and carbamates are acetylcholine esterase inhibitors (AChEIs), which can cause seizure and lethality. Anticonvulsant properties of potassium channel openers including cromakalim have been determined in previous studies. In the present experiment, the possible effect of cromakalim on the convulsion and death induced by OPs and carbamates was studied in mice. Dichlorvos (an OP, 50 mg/kg) and physostigmine (a carbamate, 2 mg/kg) were used to induce seizure in animals. Cromakalim at doses of 0...
January 2018: Acta Medica Iranica
Tisha M Felder, Kathryn L Braun, Lisa Wigfall, Maria Sevoyan, Shraddha Vyas, Samira Khan, Heather M Brandt, Charles Rogers, Sora Tanjasiri, Cheryl A Armstead, James R Hébert
The study aims to explore variation in scholarly productivity outcomes by underrepresented status among a diverse sample of researchers in a community-engaged training program. We identified 141 trainees from a web-based survey of researchers in the National Cancer Institute-funded, Community Networks Program Centers (CNPCs) (2011-2016). We conducted a series of multiple logistic regression models to estimate the effect of National Institutes of Health (NIH)-defined underrepresented status on four, self-reported, scholarly productivity outcomes in the previous 5 years: number of publications (first-authored and total) and funded grants (NIH and any agency)...
February 12, 2018: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
Letícia Oba Sakae, Sávio José Cardoso Bezerra, Samira Helena João-Souza, Alessandra Buhler Borges, Idalina V Aoki, Ana Cecília Côrrea Aranha, Taís Scaramucci
OBJECTIVE: To evaluate the influence of the viscosity and frequency of application of solutions containing fluoride (F) and stannous chloride (SnCl2) on enamel erosion prevention. DESIGN: Bovine enamel specimens were randomly distributed into 12 groups (n = 10), according to the following study factors: solution (C: deionized water; F: 500 ppm F-; F + Sn: 500 ppm F- + 800 ppm Sn2+); viscosity (low and high); and frequency of application (once and twice a day)...
February 3, 2018: Archives of Oral Biology
Pierre Gantner, Cindy Barnig, Marialuisa Partisani, Guinevere Q Lee, Geneviève Beck-Wirth, Jean-Pierre Faller, Martin Martinot, Mahsa Mosheni-Zadeh, Christine Cheneau, Marie-Laure Batard, Patricia Fischer, Anne Fuchs, Béatrice Uring-Lambert, Siamak Bahram, David Rey, Samira Fafi-Kremer
OBJECTIVE: The aim of our study was to analyze the dynamics of HIV-DNA levels in CD4 T-cell subsets in individuals starting successful dolutegravir-based regimens. DESIGN: Twenty-seven individuals with acute infection (AI, n = 8) or chronic infection (CI, n = 5) and patients in virological success (VS, n = 10) or virological failure (VF, n = 4) on antiretroviral therapy (ART) who initiated a dolutegravir-based regimen were enrolled (NCT02557997)...
February 8, 2018: AIDS
Samira Esmaeili Reykande, Arezou Rezaei, Maryam Sadr, Mahsima Shabani, Farnaz Najmi Varzaneh, Vahid Ziaee, Nima Rezaei
Interferon regulatory factor 5 (IRF5) is a member of IRF family which induce signaling pathways and are involved in modulation of cell growth, differentiation, apoptosis, and immune system activity. Juvenile idiopathic arthritis (JIA) is an auto-inflammatory syndrome where the inflammatory markers are believed to play a fundamental role in its pathogenesis. In this study, we aimed to assess the association of IRF5 gene polymorphisms with susceptibility of JIA in Iranian population. Three IRF5 single-nucleotide polymorphisms (rs10954213 A/G, rs2004640 G/T, and rs3807306 G/T) were genotyped using TaqMan assays in 55 patients with JIA and 63 matched healthy individuals...
February 8, 2018: Clinical Rheumatology
P Monica Lind, Samira Salihovic, Lars Lind
BACKGROUND: Organochlorine pesticides (OCPs) have been shown in the experimental setting to alter DNA methylation. Since DNA methylation changes during the life-span, formulas have been presented to calculate "DNA methylation age" as a measure of biological age. OBJECTIVES: We aimed to investigate if circulating levels of three OCPs were related to increased DNA methylation age METHODS: 71CpG DNA methylation age (Hannum formula) was calculated based on data from the Illumina 450 k Bead Methylation chip in 1000 subjects in the Prospective Study of the Vasculature in Uppsala Seniors (PIVUS) study (50% women, all aged 70 years at the examination)...
February 1, 2018: Environment International
Huda O AbuBakr, Samira H Aljuaydi, Shimaa M Abou-Zeid, Amanallah El-Bahrawy
Thermal injury may lead to multiple organ dysfunction through release of proinflammatory mediators and reactive oxygen radicals. This study investigated the effects of thermal injury on remote organs of rats and the possible protective effect of lutein. Thermal trauma was induced in the back of rats by exposing them to 90 °C bath for 10 s. Rats were sacrificed 48 h after burn, and blood samples were collected to monitor liver and kidney functions. Tissue samples from liver, kidneys, and lungs were taken for studying oxidative stress parameters, gene expressions of TNF-α and Casp-3, besides histopathological examination...
February 7, 2018: Inflammation
Naser Jafarzadeh, Ahmad Mani-Varnosfaderani, Kambiz Gilany, Samira Eynali, Habib Ghaznavi, Ali Shakeri-Zadeh
Radiotherapy is one of the main modalities of cancer treatment. The utility of Raman spectroscopy (RS) for detecting the distinct radiobiological responses in human cancer cells is currently under investigation. RS holds great promises to provide good opportunities for personalizing radiotherapy treatments. Here, we report the effects of the radiation dose and post-irradiation time on the molecular changes in the human breast cancer SKBR3 cells, using RS. The SKBR3 cells were irradiated by gamma radiation with different doses of 0, 1, 2, 4, and 6 Gy...
January 25, 2018: Journal of Photochemistry and Photobiology. B, Biology
Samira Hosseini KorehKhosravi, Asad Masoumiasl, Masoud Dehdari
The genetic diversity of 18 Iranian populations of Nigella sativa L. was tested using RAPD (10 primers) and ISSR (12 primers) molecular markers. RAPD primers produced 103 acceptable bands and out of them, 42 bands were polymorphic and the total percentage of polymorphism was estimated 40.5%. Out of the 12 ISSR primers, only 5 of them produced acceptable bands. Five ISSR primers generated 39 amplified products and out of them, 19 bands were polymorphic and the total percentage of polymorphism was estimated 57...
January 31, 2018: Cellular and Molecular Biology
Samira M Abozeid, Eric M Snyder, Timothy Y Tittiris, Charles M Steuerwald, Alexander Y Nazarenko, Janet R Morrow
High-spin Co(II) complexes are promising for development as paraCEST agents (paraCEST = paramagnetic chemical exchange saturation transfer) for magnetic resonance imaging applications. The first examples of Co(II) paraCEST agents with bound water ligands are presented here. Four Co(II) macrocyclic complexes based on 1,4,7-triazacyclononane and containing either pendent alcohol or pendent amide groups were prepared. Two of the macrocycles encapsulate the Co(II) and contain no water ligands as shown by X-ray crystallographic studies, and two complexes have macrocycles with only five ligand donor groups to leave an open coordination site for bound water...
February 7, 2018: Inorganic Chemistry
Samira Farsinezhad, Thariq Shanavas, Najia Mahdi, Abdelrahman Mostafa Askar, Piyush Kar, Himani Sharma, Karthik Shankar
Titanium nitride (TiN) is a ceramic with high electrical conductivity which in nanoparticle form, exhibits localized surface plasmon resonances in the visible region of the solar spectrum. The ceramic nature of TiN coupled with its dielectric loss factor being comparable to that of gold, render it attractive for CMOS polarizers, refractory plasmonics, surface-enhanced Raman scattering and a whole host of sensing applications. We report core-shell TiO2-TiN nanotube arrays exhibiting localized surface plasmon resonance (LSPR) peaks in the range 775-830 nm achieved by a simple, solution-based, low cost, large area-compatible fabrication route that does not involve laser-writing or lithography...
February 6, 2018: Nanotechnology
Ambarish Kulkarni, Samira Siahrostami, Anjli Patel, Jens K Nørskov
Despite the dedicated search for novel catalysts for fuel cell applications, the intrinsic oxygen reduction reaction (ORR) activity of materials has not improved significantly over the past decade. Here, we review the role of theory in understanding the ORR mechanism and highlight the descriptor-based approaches that have been used to identify catalysts with increased activity. Specifically, by showing that the performance of the commonly studied materials (e.g., metals, alloys, carbons, etc.) is limited by unfavorable scaling relationships (for binding energies of reaction intermediates), we present a number of alternative strategies that may lead to the design and discovery of more promising materials for ORR...
February 6, 2018: Chemical Reviews
Samira Filali, Charlotte Bergamelli, Mamadou Lamine Tall, Damien Salmon, Diane Laleye, Carole Dhelens, Elhadji Diouf, Christine Pivot, Fabrice Pirot
A new institutional clinical trial assessed the improvement of sleep disorders in 40 children with autism treated by immediate-release melatonin formulation in different regimens (0.5 mg, 2 mg, and 6 mg daily) for one month. The objectives of present study were to (i) prepare low-dose melatonin hard capsules for pediatric use controlled by two complementary methods and (ii) carry out a stability study in order to determine a use-by-date. Validation of preparation process was claimed as ascertained by mass uniformity of hard capsules...
August 2017: Journal of Pharmaceutical Analysis
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