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https://www.readbyqxmd.com/read/28808685/structure-of-a-1-5-mda-adhesin-that-binds-its-antarctic-bacterium-to-diatoms-and-ice
#1
Shuaiqi Guo, Corey A Stevens, Tyler D R Vance, Luuk L C Olijve, Laurie A Graham, Robert L Campbell, Saeed R Yazdi, Carlos Escobedo, Maya Bar-Dolev, Victor Yashunsky, Ido Braslavsky, David N Langelaan, Steven P Smith, John S Allingham, Ilja K Voets, Peter L Davies
Bacterial adhesins are modular cell-surface proteins that mediate adherence to other cells, surfaces, and ligands. The Antarctic bacterium Marinomonas primoryensis uses a 1.5-MDa adhesin comprising over 130 domains to position it on ice at the top of the water column for better access to oxygen and nutrients. We have reconstructed this 0.6-μm-long adhesin using a "dissect and build" structural biology approach and have established complementary roles for its five distinct regions. Domains in region I (RI) tether the adhesin to the type I secretion machinery in the periplasm of the bacterium and pass it through the outer membrane...
August 2017: Science Advances
https://www.readbyqxmd.com/read/28801232/nlrp6-and-asc-dependent-inflammasomes-do-not-shape-the-commensal-gut-microbiota-composition
#2
Michail Mamantopoulos, Francesca Ronchi, Filip Van Hauwermeiren, Sara Vieira-Silva, Bahtiyar Yilmaz, Liesbet Martens, Yvan Saeys, Stefan K Drexler, Amir S Yazdi, Jeroen Raes, Mohamed Lamkanfi, Kathy D McCoy, Andy Wullaert
The gut microbiota regulate susceptibility to multiple human diseases. The Nlrp6-ASC inflammasome is widely regarded as a hallmark host innate immune axis that shapes the gut microbiota composition. This notion stems from studies reporting dysbiosis in mice lacking these inflammasome components when compared with non-littermate wild-type animals. Here, we describe microbial analyses in inflammasome-deficient mice while minimizing non-genetic confounders using littermate-controlled Nlrp6-deficient mice and ex-germ-free littermate-controlled ASC-deficient mice that were all allowed to shape their gut microbiota naturally after birth...
August 15, 2017: Immunity
https://www.readbyqxmd.com/read/28797620/extended-follow-up-of-patients-treated-with-bendamustine-for-lymphoid-malignancies
#3
Mara Penne, Maryam Sarraf Yazdy, Kruti Sheth Nair, Bruce D Cheson
INTRODUCTION: Bendamustine, typically in combination with rituximab, is an effective treatment for chronic lymphocytic leukemia (CLL) and B-cell non-Hodgkin lymphoma. Despite its acceptable short-term toxicity profile, long-term toxicities are less well established. This study investigated the long-term adverse effects of bendamustine and responses to subsequent treatments. PATIENTS AND METHODS: Charts of 194 patients were retrospectively reviewed; 54% had received prior treatment (76% attained complete response [CR] or partial response [PR])...
June 30, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28781726/the-anti-parkinsonism-effects-of-katp-channel-blockade-in-the-6-hydroxydopamine-induced-animal-model-the-role-of-oxidative-stress
#4
Hossein Piri, Hashem Haghdoost-Yazdi, Negin Fraidouni, Tahereh Dargahi, Mohamadhosein Yaghoubidoust, Abbas Azadmehr
INTRODUCTION: Studies suggest that ATP-sensitive potassium (KATP) channels are a potential pharmacotherapeutic target for neuroprotection in neurodegenerative diseases. The current study aimed at evaluating the effect of pretreatment with glibenclamide (Glib) and B vitamins supplement on the severity of behavioral symptoms in 6-hydroxydopamine (OHDA)-induced Parkinsonism. Also malondialdehyde (MDA) concentration was measured in the blood and brain suspensions to find probable neuroprotective mechanism of Glib...
May 2017: Basic and Clinical Neuroscience
https://www.readbyqxmd.com/read/28748072/the-evaluation-of-saccharose-replacing-by-adding-stevioside-maltodextrin-mixture-on-the-physicochemical-and-sensory-properties-of-naanberenji-an-iranian-confectionary
#5
Amirpouya Ghandehari Yazdi, Mohammad Hojjatoleslamy, Javad Keramat, Mahshid Jahadi, Elahe Amani
Stevia is a natural, non-nutritive sweetener can replace sugar in your diet to control diabetes and aid in weight loss. Naanberenji, an Iranian traditional cookie, is a well-reputed confectionary containing high sucrose and calorie value, for this reason its consumption in healthy diet has been restricted. In this study, the effect of sucrose replacement by stevioside-maltodextrin mixture on physicochemical properties of Naanberenji was evaluated in four replacing levels including 25%, 50%, 75%, and 100%. Results of texture evaluation revealed that hardness increases due to adding stevioside-maltodextrin (p < ...
July 2017: Food Science & Nutrition
https://www.readbyqxmd.com/read/28738736/bacterial-vaginosis-and-the-risk-of-early-miscarriage-in-women-undergoing-intracytoplasmic-sperm-injection-cycles-a-prospective-cohort-study
#6
Ashraf Moini, Ladan Mohammadi Yeganeh, Marzieh Shiva, Malihe Ahmadieh, Reza Salman Yazdi, Fatemeh Hasani, Narges Bagheri Lankarani, Azam Sanati
This study aimed to assess the possible association of bacterial vaginosis (BV) and early miscarriage in 408 women undergoing intracytoplasmic sperm injection (ICSI) for reasons of male infertility. A vaginal sample was obtained before oocyte retrieval and evaluated for BV-associated bacteria using the Nugent scoring system. The primary outcome was early miscarriage and the secondary outcomes included implantation, pregnancy, late miscarriage, preterm delivery and live birth rates. Chi-square, ANOVA, relative risk and odds ratio were used for data analysis where appropriate...
July 24, 2017: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/28732441/determination-of-the-residual-entropy-of-simple-mixtures-by-monte-carlo-simulation
#7
Eric Detmar, Simin Yazdi Nezhad, Ulrich K Deiters
Extensive Monte Carlo simulations were performed for (neon + krypton) mixtures for temperatures between 200 K and 600 K and pressures up to 1 GPa, using Lennard-Jones potentials to describe the intermolecular interactions. The residual entropies were obtained via Widom's insertion method, as well as via an integration technique. At high pressures, the residual entropy is, to a very good approximation, a linear function of λa(-1), which is the reciprocal value of the average Monte Carlo displacement parameter that gives the acceptance ratio a for translational moves...
August 16, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28729328/comparative-safety-of-antiepileptic-drugs-for-neurological-development-in-children-exposed-during-pregnancy-and-breast-feeding-a-systematic-review-and-network-meta-analysis
#8
Areti Angeliki Veroniki, Patricia Rios, Elise Cogo, Sharon E Straus, Yaron Finkelstein, Ryan Kealey, Emily Reynen, Charlene Soobiah, Kednapa Thavorn, Brian Hutton, Brenda R Hemmelgarn, Fatemeh Yazdi, Jennifer D'Souza, Heather MacDonald, Andrea C Tricco
OBJECTIVES: Compare the safety of antiepileptic drugs (AEDs) on neurodevelopment of infants/children exposed in utero or during breast feeding. DESIGN AND SETTING: Systematic review and Bayesian random-effects network meta-analysis (NMA). MEDLINE, EMBASE and the Cochrane Central Register of Controlled Trials were searched until 27 April 2017. Screening, data abstraction and quality appraisal were completed in duplicate by independent reviewers. PARTICIPANTS: 29 cohort studies including 5100 infants/children...
July 20, 2017: BMJ Open
https://www.readbyqxmd.com/read/28728347/pros-and-cons-of-health-transformation-program-in-iran-evidence-from-financial-outcomes-at-household-level
#9
Enayatollah Homaie Rad, Vahid Yazdi-Feyzabadi, Shahrokh Yousefzadeh-Chabok, Abolhasan Afkar, Ahmad Naghibzadeh Tahami
Purpose: Health transformation program (HTP) is one of the recent reforms in health system of Iran implemented in early 2014. Improving the equity of payments and reducing out of pocket (OOP) and catastrophic health expenditures (CHE) were some of the program's important goals. In this study these goals were evaluated using a before-after analysis. Methods: Household income and expenditures data of Guilan province were gathered for years 2013-2015. OOP payments for outpatient, inpatient and drug services were calculated and the results were compared using propensity score matching technique after adjustment of confounding variables...
July 18, 2017: Epidemiology and Health
https://www.readbyqxmd.com/read/28700044/prevalence-of-and-risk-factors-for-multidrug-resistant-tuberculosis-in-iran-and-its-neighboring-countries-systematic-review-and-meta-analysis
#10
REVIEW
Worku Jimma, Marjan Ghazisaeedi, Leila Shahmoradi, Ahmed Abdulahi Abdurahman, Sharareh Rostam Niakan Kalhori, Mahshid Nasehi, Sharifi Yazdi, Reza Safdari
Tuberculosis, in particular drug-resistant tuberculosis, is of global concern due to the high mortality and morbidity associated with it annually. The aim of this study was to determine the prevalence of and the risk factors for multidrug-resistant tuberculosis in Iran and its neighboring countries. Four databases (PubMed, BioMed Central, EMBASE, and Web of Science) were searched using key terms. Nineteen eligible articles were identified, of which 12 and seven were used for quantitative and qualitative analysis, respectively...
May 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/28694453/portable-and-error-free-dna-based-data-storage
#11
S M Hossein Tabatabaei Yazdi, Ryan Gabrys, Olgica Milenkovic
DNA-based data storage is an emerging nonvolatile memory technology of potentially unprecedented density, durability, and replication efficiency. The basic system implementation steps include synthesizing DNA strings that contain user information and subsequently retrieving them via high-throughput sequencing technologies. Existing architectures enable reading and writing but do not offer random-access and error-free data recovery from low-cost, portable devices, which is crucial for making the storage technology competitive with classical recorders...
July 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28675656/direct-creation-of-highly-conductive-laser-induced-graphene-nanocomposites-from-polymer-blends
#12
Alireza Zehtab Yazdi, Ivonne Otero Navas, Ahmed Abouelmagd, Uttandaraman Sundararaj
The current state-of-the-art mixing strategies of nanoparticles with insulating polymeric components have only partially utilized the unique electrical conductivity of graphene in nanocomposite systems. Herein, this paper reports a nonmixing method of direct creation of polymer/graphene nanocomposites from polymer blends via laser irradiation. Polycarbonate-laser-induced graphene (PC-LIG) nanocomposite is produced from a PC/polyetherimide (PC/PEI) blend after exposure to commercially available laser scribing with a power of ≈6 W and a speed of ≈2 cm s(-1) ...
July 4, 2017: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/28667027/synergy-between-paclitaxel-and-anti-cancer-peptide-pnc-27-in-the-treatment-of-ovarian-cancer
#13
Ioannis Alagkiozidis, Constantine Gorelick, Tana Shah, Yi-Ju Amy Chen, Vinita Gupta, Dimitre Stefanov, Abhi Amarnani, Yi-Chun Lee, Ovadia Abulafia, Ehsan Sarafraz-Yazdi, Josef Michl
OBJECTIVES: Paclitaxel is widely used in the treatment of gynecologic malignancies. It targets tumor cells in the M phase of the cell cycle. Cells in other phases survive the insult and repopulate the tumor. PNC-27 is a peptide synthesized of amino acids of the p53-MDM-2 binding domain. It kills various cancer cell lines in a dose-dependent manner. The goal of this study is to assess ovarian cancer cells' sensitivity to PNC-27 after surviving exposure to paclitaxel and to investigate the potential for synergy between PNC-27 and paclitaxel in the treatment of ovarian cancer...
May 2017: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/28665739/the-placental-vascular-endothelial-growth-factor-polymorphisms-and-preeclampsia-preeclampsia-severity
#14
Farshid Keshavarzi, Abbas Mohammadpour-Gharehbagh, Mahnaz Shahrakipour, Batool Teimoori, Atefeh Yazdi, Minoo Yaghmaei, Mehrnaz Naroeei-Nejad, Saeedeh Salimi
Preeclampsia (PE) is a serious pregnancy-specific condition, which originates from placenta and finishes after delivery. The present study has investigated the association between placental VEGF I/D (rs35569394), -1154G/A (rs1570360), and -634G/C(rs2010963) polymorphisms and maternal VEGF -2549 I/D (rs35569394) polymorphism with PE and PE severity. In this case-control study, the maternal blood of 217 women with PE and 210 normotensive pregnant women and the placenta of 84 PE women and 103 normotensive women were collected after delivery...
June 30, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28656759/single-atomic-ruthenium-catalytic-sites-on-nitrogen-doped-graphene-for-oxygen-reduction-reaction-in-acidic-medium
#15
Chenhao Zhang, Junwei Sha, Huilong Fei, Mingjie Liu, Sadegh Yazdi, Jibo Zhang, Qifeng Zhong, Xiaolong Zou, Naiqin Zhao, Haisheng Yu, Zheng Jiang, Emilie Ringe, Boris I Yakobson, Juncai Dong, Dongliang Chen, James M Tour
The cathodic oxygen reduction reaction (ORR) is essential in the electrochemical energy conversion of fuel cells. Here, through the NH3 atmosphere annealing of a graphene oxide (GO) precursor containing trace amounts of Ru, we have synthesized atomically dispersed Ru on nitrogen-doped graphene that performs as an electrocatalyst for the ORR in acidic medium. The Ru/nitrogen-doped GO catalyst exhibits excellent four-electron ORR activity, offering onset and half-wave potentials of 0.89 and 0.75 V, respectively, vs a reversible hydrogen electrode (RHE) in 0...
July 25, 2017: ACS Nano
https://www.readbyqxmd.com/read/28656163/responsiveness-of-static-and-dynamic-postural-balance-measures-in-patients-with-anterior-cruciate-ligament-reconstruction-following-physiotherapy-intervention
#16
Neda Mostafaee, Mohammad J Shaterzadeh Yazdi, Hossein Negahban, Shahin Goharpey, Mohammad Mehravar, Nahid Pirayeh
BACKGROUND: The main goal of physiotherapy for patients with anterior cruciate ligament reconstruction (ACL-R) is to improve postural control and retain knee function. Therefore, clinicians need to use evaluative tools that assess postural changes during physiotherapy. To maximize the clinical utility of the results of these tools, the extracted measures should have appropriate psychometric properties of reliability, validity and responsiveness. No study has yet addressed responsiveness of postural measures in these patients...
May 2017: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/28655472/induction-of-skin-pathogenic-th22-cells-by-epicutaneous-allergen-exposure
#17
Ivana Glocova, Jürgen Brück, Julia Geisel, Eva Müller-Hermelink, Katja Widmaier, Amir S Yazdi, Martin Röcken, Kamran Ghoreschi
BACKGROUND: Atopic dermatitis (AD) is a common inflammatory skin disease with dysfunction of the skin barrier, an abnormal immune response and frequent allergies to environmental antigens like food antigens. Clinical observations suggest that certain diets can influence the course of AD. OBJECTIVE: Here we compared the phenotype of food allergen-specific T cells activated through skin or gut allergen exposure to transfer skin inflammation into naïve recipients upon epicutaenous allergen challenge...
June 9, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28646705/identification-and-in-vitro-characterization-of-novel-nanobodies-against-human-granulocyte-colony-stimulating-factor-receptor-to-provide-inhibition-of-g-csf-function
#18
Hamid Bakherad, Seyed Latif Mousavi Gargari, Zargham Sepehrizadeh, Hossein Aghamollaei, Ramezan Ali Taheri, Maryam Torshabi, Mojtaba Tabatabaei Yazdi, Walead Ebrahimizadeh, Neda Setayesh
It has been shown that Granulocyte colony-stimulating factor (G-CSF) has a higher expression in malignant tumors, and anti-G-CSF therapy considerably decreases tumor growth, tumor vascularization and metastasis. Thus, blocking the signaling pathway of G-CSF could be beneficial in cancer therapy. This study is aimed at designing and producing a monoclonal nanobody that could act as an antagonist of G-CSF receptor. Nanobodies are the antigen binding fragments of camelid single-chain antibodies, also known as VHH...
September 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28634193/design-improvements-for-personal-protective-equipment-used-in-ebola-and-other-epidemic-outbreaks
#19
Margaret Glancey, Patience Osei, William Alexander Patterson, Matthew Petney, Laura Scavo, Chandrakant Ruparelia, Soumyadipta Acharya, Youseph Yazdi
No abstract text is available yet for this article.
June 27, 2017: Global Health, Science and Practice
https://www.readbyqxmd.com/read/28633807/differential-induction-of-atf3-and-ho-1-in-myeloid-cells-and-keratinocytes-via-dimethylfumarate-or-cyclosporine-a
#20
Stefanie Müller, Nikola Smatlik, Marc Burian, Kamran Ghoreschi, Martin Röcken, Amir S Yazdi
BACKGROUND: Chronic inflammatory skin diseases are characterized by controlled proliferation of keratinocytes. Here, activating transcription factor 3 (ATF3) might play a fundamental role. In these inflammatory diseases, proliferation is controlled and only rarely leads to cancer development which can be supported by an inflammatory microenvironment. ATF3 is a dual function protein as it suppresses pro-inflammatory IL-6 and IL-8, but also acts as a pro-oncogenic factor by the suppression of p53...
June 12, 2017: Journal of Dermatological Science
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