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https://www.readbyqxmd.com/read/27922966/local-coverage-for-acute-severely-herniated-brain-using-scalp-and-forehead-flaps-in-a-pediatric-patient-with-head-trauma
#1
Matthew Brown, Navid Pourtaheri, Kristopher Katira, Sunil Manjila, Ali S Totonchi
A 4-year-old-boy required emergent craniectomy and drainage of a large right-sided acute subdural hematoma after head trauma, during which massive sinus hemorrhage with brain swelling occurred. Acute intraoperative management entailed dural cover using synthetic dural membrane substitute and scalp coverage over the herniated brain using acellular dermal matrix. After intensive monitoring and control of raised intracranial pressure over the next few days, the exposed brain was then covered by scalp and forehead flaps with cadaveric skin grafting to the donor site...
December 5, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27919361/adverse-effects-on-insulin-secretion-of-replacing-saturated-fat-with-refined-carbohydrate-but-not-with-monounsaturated-fat-a-randomized-controlled-trial-in-centrally-obese-subjects
#2
Lin F Chang, Shireene R Vethakkan, Kalanithi Nesaretnam, Thomas A B Sanders, Kim-Tiu Teng
BACKGROUND: Current dietary guidelines recommend the replacement of saturated fatty acids (SAFAs) with carbohydrates or monounsaturated fatty acids (MUFAs) based on evidence on lipid profile alone, the chronic effects of the mentioned replacements on insulin secretion and insulin sensitivity are however unclear. OBJECTIVE: To assess the chronic effects of the substitution of refined carbohydrate or MUFA for SAFA on insulin secretion and insulin sensitivity in centrally obese subjects...
November 2016: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/27917891/modular-architecture-and-unique-teichoic-acid-recognition-features-of-choline-binding-protein-l-cbpl-contributing-to-pneumococcal-pathogenesis
#3
Javier Gutiérrez-Fernández, Malek Saleh, Martín Alcorlo, Alejandro Gómez-Mejía, David Pantoja-Uceda, Miguel A Treviño, Franziska Voß, Mohammed R Abdullah, Sergio Galán-Bartual, Jolien Seinen, Pedro A Sánchez-Murcia, Federico Gago, Marta Bruix, Sven Hammerschmidt, Juan A Hermoso
The human pathogen Streptococcus pneumoniae is decorated with a special class of surface-proteins known as choline-binding proteins (CBPs) attached to phosphorylcholine (PCho) moieties from cell-wall teichoic acids. By a combination of X-ray crystallography, NMR, molecular dynamics techniques and in vivo virulence and phagocytosis studies, we provide structural information of choline-binding protein L (CbpL) and demonstrate its impact on pneumococcal pathogenesis and immune evasion. CbpL is a very elongated three-module protein composed of (i) an Excalibur Ca(2+)-binding domain -reported in this work for the very first time-, (ii) an unprecedented anchorage module showing alternate disposition of canonical and non-canonical choline-binding sites that allows vine-like binding of fully-PCho-substituted teichoic acids (with two choline moieties per unit), and (iii) a Ltp_Lipoprotein domain...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917615/design-synthesis-and-evaluation-of-2-9-bis-substituted-aminomethyl-phenyl-1-10-phenanthroline-derivatives-as-g-quadruplex-ligands
#4
Nassima Meriem Gueddouda, Miyanou Rosales Hurtado, Stéphane Moreau, Luisa Ronga, Rabindra Nath Das, Solène Savrimoutou, Sandra Rubio, Adrien Marchand, Oscar Mendoza, Mathieu Marchivie, Lilian Elmi, Albain Chansavang, Vanessa Desplat, Valérie Gabelica, Anne Bourdoncle, Jean-Louis Mergny, Jean Guillon
Genomic sequences able to form guanine quadruplexes (G4) are found in oncogene promoters, in telomeres and in 5' and 3' untranslated regions as well as introns of messenger RNAs. These regions are potential targets for drugs designed to treat cancer. In the present work, we present the design and syntheses of ten new phenantroline derivatives and characterization of their interactions with G4-forming oligonucleotides. We evaluated ligand-induced stabilization and specificity and selectivity of ligands for various G4 conformations using FRET-melting experiments...
December 4, 2016: ChemMedChem
https://www.readbyqxmd.com/read/27916566/extracellular-vesicle-mimetics-novel-alternatives-to-extracellular-vesicle-based-theranostics-drug-delivery-and-vaccines
#5
REVIEW
Oh Youn Kim, Jaewook Lee, Yong Song Gho
Extracellular vesicles are nano-sized spherical bilayered proteolipids encasing various components. Cells of all domains of life actively release these vesicles to the surroundings including various biological fluids. These extracellular vesicles are known to play pivotal roles in numerous pathophysiological functions. Extracellular vesicles have distinct characteristics, like high biocompatibility, safety, and nano-sized diameters that allow efficient drug loading capacity and long blood circulation half-life...
December 1, 2016: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/27914600/polymorphisms-in-nat2-n-acetyltransferase-2-gene-in-patients-with-systemic-lupus-erythematosus
#6
Elaine Cristina Lima Dos Santos, Amanda Chaves Pinto, Evandro Mendes Klumb, Jacyara Maria Brito Macedo
OBJECTIVE: To investigate potential associations of four substitutions in NAT2 gene and of acetylator phenotype of NAT2 with systemic lupus erythematosus (SLE) and clinical phenotypes. METHODS: Molecular analysis of 481C>T, 590G>A, 857G>A, and 191G>A substitutions in the NAT2 gene was performed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique, from DNA extracted from peripheral blood samples obtained from patients with SLE (n=91) and controls (n=97)...
November 2016: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/27913610/whole-exome-sequencing-of-thymic-neuroendocrine-tumor-with-ectopic-acth-syndrome
#7
Yanli Li, Ying Peng, Xiuli Jiang, Yulong Cheng, Weiwei Zhou, Tingwei Su, Jing Xie, Xu Zhong, Dalong Song, Luming Wu, Liwen Fan, Min Li, Jie Hong, Weiqing Wang, Guang Ning, Yanan Cao
OBJECTIVE: Thymic neuroendocrine tumor is the second-most prevalent cause of ectopic adrenocorticotropic hormone (ACTH) syndrome (EAS), which is a rare disease characterized by ectopic ACTH oversecretion from nonpituitary tumors. However, the genetic abnormalities of thymic neuroendocrine tumors with EAS remain largely unknown. We aim to elucidate the genetic abnormalities and identify the somatic mutations of potential tumor-related genes of thymic neuroendocrine tumors with EAS by whole exome sequencing...
February 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/27912875/long-term-chamomile-matricaria-chamomilla-l-treatment-for-generalized-anxiety-disorder-a-randomized-clinical-trial
#8
Jun J Mao, Sharon X Xie, John R Keefe, Irene Soeller, Qing S Li, Jay D Amsterdam
BACKGROUND: Generalized Anxiety Disorder (GAD) is one of the most common anxiety disorders treated in primary care, yet current therapies have limited efficacy and substantial side effects. PURPOSE: To evaluate long-term chamomile (Matricaria chamomilla L.) use for prevention of GAD symptom relapse. METHODS: Outpatients from primary care practices and local communities with a primary diagnosis of moderate-to-severe GAD were enrolled for this two-phase study at a large US academic medical center...
December 15, 2016: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/27906988/atypical-manifestations-of-cutaneous-leishmaniasis-in-a-region-endemic-for-leishmania-braziliensis-clinical-immunological-and-parasitological-aspects
#9
Luiz Henrique Guimarães, Adriano Queiroz, Juliana A Silva, Silvana C Silva, Viviane Magalhães, Ednaldo L Lago, Paulo Roberto L Machado, Olívia Bacellar, Mary E Wilson, Stephen M Beverley, Edgar M Carvalho, Albert Schriefer
BACKGROUND: Atypical cutaneous leishmaniasis (ACL) has become progressively more frequent in Corte de Pedra, Northeast Brazil. Herein we characterize clinical presentation, antimony response, cytokine production and parasite strains prevailing in ACL. METHODOLOGY/PRINCIPAL FINDINGS: Between 2005 and 2012, 51 ACL (cases) and 51 temporally matched cutaneous leishmaniasis (CL) subjects (controls) were enrolled and followed over time in Corte de Pedra. Clinical and therapeutic data were recorded for all subjects...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27906838/arterial-stiffness-index-beta-and-cardio-ankle-vascular-index-inherently-depend-on-blood-pressure-but-can-be-readily-corrected
#10
Bart Spronck, Alberto P Avolio, Isabella Tan, Mark Butlin, Koen D Reesink, Tammo Delhaas
OBJECTIVES: Arterial stiffness index β and cardio-ankle vascular index (CAVI) are widely accepted to quantify the intrinsic exponent (β0) of the blood pressure (BP)-diameter relationship. CAVI and β assume an exponential relationship between pressure (P) and diameter (d). We aim to demonstrate that, under this assumption, β and CAVI as currently implemented are inherently BP-dependent and to provide corrected, BP-independent forms of CAVI and β. METHODS AND RESULTS: In P = Prefe, usually reference pressure (Pref) and reference diameter (dref) are substituted with DBP and diastolic diameter to accommodate measurements...
January 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/27899011/nasal-lavage-blood-or-sputum-which-is-best-for-phenotyping-asthma
#11
Camyla F de Farias, Maria M F Amorim, Michel Dracoulakis, Lilian B Caetano, Ilka L Santoro, Ana L G Fernandes
BACKGROUND AND OBJECTIVE: Determination of asthma phenotypes, particularly inflammatory phenotypes, helps guide treatment and management of this heterogeneous disease. Induced sputum cytology has been the gold standard for determination of inflammatory phenotypes, but sputum induction is fairly invasive and technically challenging. Blood and nasal lavage cytology have been suggested as substitutes, but have not been fully verified. The aim of this study is to determine the accuracy of blood and nasal lavage cytometry as indicators of inflammatory phenotypes in asthma...
November 29, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27898972/intake-digestibility-performance-and-nitrogen-metabolism-of-feedlot-finished-young-bulls-fed-diets-containing-peanut-cake
#12
B R Correia, G G P de Carvalho, R L Oliveira, A J V Pires, O L Ribeiro, R R Silva, A G Leão, P A Oliveira
This aim of this study was to evaluate the use of peanut cake as a dietary substitute for soybean meal and to determine the effects on intake, apparent digestibility, performance, and N metabolism in feedlot-finished young bulls. Thirty-two young Nellore bulls with an average initial BW of 390 ± 43.5 kg were distributed in a completely randomized design and individually housed in stalls. The young bulls were fed Tifton 85 hay and 4 concentrate mixes containing 0, 33, 66, or 100% peanut cake replacing soybean meal...
November 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27898437/how-best-to-set-the-ventilator-on-extracorporeal-membrane-lung-oxygenation
#13
Luciano Gattinoni, Tommaso Tonetti, Michael Quintel
PURPOSE OF REVIEW: Extracorporeal respiratory support in patients with acute respiratory distress syndrome is applied either as rescue maneuver for life-threatening hypoxemia or as a tool to reduce the harm of mechanical ventilation. Depending on the blood and gas flow, extracorporeal support may completely substitute the natural lung as a gas exchanger (high-flow venovenous bypass) or reduce the need for mechanical ventilation, enabling the removal of a fraction of the metabolically produced CO2...
November 24, 2016: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/27898038/a-method-for-determining-the-content-of-glycoproteins-in-biological-samples
#14
Yang Gao, Duoduo Xu, Hongyue Li, Xianling Yang, Mingxing Wang, Qipin Gao
The glycoprotein purified from the mycelium extract of Tremella fuciformis was marked with iodine through the iodine substitution reaction. The content of iodine, which is indicative of the amount of the marked tremella glycoprotein (ITG), was detected with Inductively coupled plasma mass spectrometry (ICP-MS). The method was found to be stable, sensitive, and accurate at detecting the content of iodine-substituted glycoprotein, and was used in the quantitative analysis of biological samples, including blood and organs...
November 26, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27896935/sandcastle-worm-inspired-blood-resistant-bone-graft-binder-using-a-sticky-mussel-protein-for-augmented-in-vivo-bone-regeneration
#15
Hyo Jeong Kim, Bong-Hyuk Choi, Sang Ho Jun, Hyung Joon Cha
Xenogenic bone substitutes are commonly used during orthopedic reconstructive procedures to assist bone regeneration. However, huge amounts of blood accompanied with massive bone loss usually increase the difficulty of placing the xenograft into the bony defect. Additionally, the lack of an organic matrix leads to a decrease in the mechanical strength of the bone-grafted site. For effective bone grafting, this study aims at developing a mussel adhesion-employed bone graft binder with great blood-resistance and enhanced mechanical properties...
November 29, 2016: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/27894589/discovery-and-preclinical-evaluation-of-7-benzyl-n-substituted-pyrrolo-3-2-d-pyrimidin-4-amines-as-single-agents-with-microtubule-targeting-effects-along-with-triple-acting-angiokinase-inhibition-as-antitumor-agents
#16
Roheeth Kumar Pavana, Shruti Choudhary, Anja Bastian, Michael A Ihnat, Ruoli Bai, Ernest Hamel, Aleem Gangjee
The utility of cytostatic antiangiogenic agents (AA) in cancer chemotherapy lies in their combination with cytotoxic chemotherapeutic agents. Clinical combinations of AA with microtubule targeting agents (MTAs) have been particularly successful. The discovery, synthesis and biological evaluations of a series of 7-benzyl-N-substituted-pyrrolo[3,2-d]pyrimidin-4-amines are reported. Novel compounds which inhibit proangiogenic receptor tyrosine kinases (RTKs) including vascular endothelial growth factor receptor-2 (VEGFR-2), platelet-derived growth factor receptor-β (PDGFR-β) and epidermal growth factor receptor (EGFR), along with microtubule targeting in single molecules are described...
November 15, 2016: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/27893619/substituting-systolic-blood-pressure-with-shock-index-in-the-national-trauma-triage-protocol
#17
Ansab A Haider, Asad Azim, Peter Rhee, Narong Kulvatunyou, Kareem Ibraheem, Andrew Tang, Terence O'Keeffe, Hajira Iftikhar, Gary Vercruysse, Bellal Joseph
INTRODUCTION: The National Trauma Triage Protocol (NTTP) is an algorithm that guides emergency medical services providers through four decision steps to identify the patients that would benefit from trauma center care. The NTTP defines a systolic blood pressure (SBP) of less than 90 mm Hg as one of the criteria for trauma center need. The aim of our study was to determine the impact of substituting SBP of less than 90 mm Hg with shock index (SI) on triage performance. METHODS: A 2-year (2011-2012) retrospective analysis of all trauma patients 18 years or older in the National Trauma Databank was performed...
December 2016: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/27889443/the-application-of-silicon-sol-gel-technology-to-forensic-blood-substitute-development-mimicking-aspects-of-whole-human-blood-rheology
#18
Theresa Stotesbury, Mike Illes, Paul Wilson, Andrew J Vreugdenhil
Solution-gelation chemistry has promising applications in forensic synthetic blood substitute development. This research offers a silicon-based sol-gel approach to creating stable materials that share similar rheological properties to that of whole human blood samples. Room temperature, high water content, silicon sol-gels were created using the organosilane precursors 3-glycidoxypropyltrimethoxysilane and tetraethylorthosilicate along with various concentrations of filler and pigment. Shear-thinning non-Newtonian properties were observed within most formulations of the presented materials...
November 15, 2016: Forensic Science International
https://www.readbyqxmd.com/read/27889329/perivascular-cells-and-tissue-engineering-current-applications-and-untapped-potential
#19
REVIEW
Elisa Avolio, Valeria V Alvino, Mohamed T Ghorbel, Paola Campagnolo
The recent development of tissue engineering provides exciting new perspectives for the replacement of failing organs and the repair of damaged tissues. Perivascular cells, including vascular smooth muscle cells, pericytes and other tissue specific populations residing around blood vessels, have been isolated from many organs and are known to participate to the in situ repair process and angiogenesis. Their potential has been harnessed for cell therapy of numerous pathologies; however, in this Review we will discuss the potential of perivascular cells in the development of tissue engineering solutions for healthcare...
November 23, 2016: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27888582/nucleotide-substitutions-in-cd101-the-human-homolog-of-a-diabetes-susceptibility-gene-in-non-obese-diabetic-mouse-in-patients-with-type-1-diabetes
#20
Misako Okuno, Yoshihito Kasahara, Masafumi Onodera, Noriyuki Takubo, Michiko Okajima, Shigeru Suga, Nobuyuki Watanabe, Junichi Suzuki, Tadayuki Ayabe, Tatsuhiko Urakami, Tomoyuki Kawamura, Nobuyuki Kikuchi, Ichiro Yokota, Toru Kikuchi, Shin Amemiya, Kazuhiko Nakabayashi, Keiko Hayashi, Kenichiro Hata, Yoichi Matsubara, Tsutomu Ogata, Maki Fukami, Shigetaka Sugihara
AIMS/INTRODUCTION: Although genome-wide association studies have identified more than 50 susceptibility genes for type 1 diabetes, low-frequency risk variants could remain unrecognized. The present study aimed to identify novel type 1 diabetes susceptibility genes by newly established methods. MATERIALS AND METHODS: We carried out whole-exome sequencing and genome-wide copy-number analysis for a Japanese family consisting of two patients with type 1 diabetes and three unaffected relatives...
October 19, 2016: Journal of Diabetes Investigation
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