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https://www.readbyqxmd.com/read/28230217/dna-protected-silver-emitters-charge-dependent-switching-of-fluorescence
#1
Matías Berdakin, Martin I Taccone, Gustavo A Pino, Cristián G Sánchez
The relationship between the state of charge and spectroscopy of DNA-protected silver emitters is not yet well understood. This remains one of the major issues to unveil in order to fully disentangle the spectroscopic features of these novel systems. It is a well known fact that a fluorescence response arises upon chemical reduction of silver cations attached to DNA, leading to neutral (or partially oxidized) "bright" clusters. It is important to note that the absence of fluorescence in completely ionic complexes is universal in the sense that it does not depend on any experimental variable...
February 22, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28227697/simultaneous-evaluation-of-prepulse-inhibition-with-emg-and-eeg-using-advanced-artifact-removal-techniques
#2
Francisco J Fraga, Claudemiro V Noya, Maria I Zimiani, Milton A Avila, Rosana Shuhama, Cristina M Del-Ben, Paulo R Menezes, Rodrigo S Martin, Cristiane Salum, Francisco J Fraga, Claudemiro V Noya, Maria I Zimiani, Milton A Avila, Rosana Shuhama, Cristina M Del-Ben, Paulo R Menezes, Rodrigo S Martin, Cristiane Salum, Francisco J Fraga, Paulo R Menezes, Claudemiro V Noya, Rosana Shuhama, Milton A Avila, Cristina M Del-Ben, Cristiane Salum, Rodrigo S Martin, Maria I Zimiani
Prepulse inhibition (PPI) consists of a reduction of the acoustic startle reflex (SR) magnitude (measured with EMG) when a startling stimulus is preceded by a non-startling one. This behavior has been extensively investigated in studies related to schizophrenia, since sensory-motor deficit plays a central role in its pathophysiology. However, the same auditory stimuli that trigger the SR also provoke intense auditory evoked responses (AEP), which can be measured with EEG. Comparing these two types of responses, acquired simultaneously, is a great opportunity to investigate the dependence and interdependence of their neural pathways...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227519/kernel-temporal-enhancement-approach-for-loreta-source-reconstruction-using-eeg-data
#3
Cristian A Torres-Valencia, M Claudia Joana Santamaria, Mauricio A Alvarez, Cristian A Torres-Valencia, M Claudia Joana Santamaria, Mauricio A Alvarez, Mauricio A Alvarez, Cristian A Torres-Valencia
Reconstruction of brain sources from magnetoencephalography and electroencephalography (M/EEG) data is a well known problem in the neuroengineering field. A inverse problem should be solved and several methods have been proposed. Low Resolution Electromagnetic Tomography (LORETA) and the different variations proposed as standardized LORETA (sLORETA) and the standardized weighted LORETA (swLORETA) have solved the inverse problem following a non-parametric approach, that is by setting dipoles in the whole brain domain in order to estimate the dipole positions from the M/EEG data and assuming some spatial priors...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226587/combined-accelerometer-and-emg-analysis-to-differentiate-essential-tremor-from-parkinson-s-disease
#4
Nooshin Haji Ghassemi, Franz Marxreiter, Cristian F Pasluosta, Patrick Kugler, Johannes Schlachetzki, Axel Schramm, Bjoern M Eskofier, Jochen Klucken, Nooshin Haji Ghassemi, Franz Marxreiter, Cristian F Pasluosta, Patrick Kugler, Johannes Schlachetzki, Axel Schramm, Bjoern M Eskofier, Jochen Klucken, Johannes Schlachetzki, Nooshin Haji Ghassemi, Cristian F Pasluosta, Patrick Kugler, Franz Marxreiter, Axel Schramm, Bjoern M Eskofier, Jochen Klucken
In this study, we intended to differentiate patients with essential tremor (ET) from tremor dominant Parkinson disease (PD). Accelerometer and electromyographic signals of hand movement from standardized upper extremity movement tests (resting, holding, carrying weight) were extracted from 13 PD and 11 ET patients. The signals were filtered to remove noise and non-tremor high frequency components. A set of statistical features was then extracted from the discrete wavelet transformation of the signals. Principal component analysis was utilized to reduce dimensionality of the feature space...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226054/patient-safety-in-nursing-paths-in-brazil
#5
Andréa Tayse de Lima Gomes, Pétala Tuani Candido de Oliveira Salvador, Cláudia Cristiane Filgueira Martins Rodrigues, Micheline da Fonseca Silva, Larissa de Lima Ferreira, Viviane Euzébia Pereira Santos
Objective: summarize the dissertations and theses produced by nurses available in the Catalog of Theses and Dissertations of the Brazilian Nursing Association, from volume XIX to XXXII, that address patient safety. Method: this is a documentary study. After data collection, the following variables were analyzed: academic level, educational institutions, year, place, type of service, study object, study method, subjects, priority protocol of patient safety, implications and final recommendations...
January 2017: Revista Brasileira de Enfermagem
https://www.readbyqxmd.com/read/28226048/fetal-and-neonatal-deaths-of-children-of-patients-classified-as-near-miss
#6
Daniele Marin Nardello, Alzira Maria D Avila Nery Guimarães, Ikaro Daniel de Carvalho Barreto, Ricardo Queiroz Gurgel, Eleonora Ramos de Oliveira Ribeiro, Cristiane Franca Lisboa Gois
Objective: identify the epidemiological aspects of early fetal and neonatal deaths in children of patients classified with near miss and the factors associated with this outcome. Method: a cross-sectional study of 79 women identified with near miss and their newborns. The variables were analyzed using Fisher's exact test. Risk factors were estimated based on unadjusted and adjusted odds ratios, and by means of multiple correspondence analysis, with significance for p <0...
January 2017: Revista Brasileira de Enfermagem
https://www.readbyqxmd.com/read/28226042/emergency-interventions-for-air-medical-services-trauma-victims
#7
Gabriela Schweitzer, Eliane Regina Pereira do Nascimento, Keyla Cristiane do Nascimento, André Ricardo Moreira, Lucia Nazareth Amante, Luciana Bihain Hagemann de Malfussi
Objective: to analyze emergency interventions for air medical services trauma victims, considering the time at the scene of trauma and the severity of the victims. Method: This was a descriptive, correlational and quantitative study, conducted from October of 2014 to December of 2015. Six nurses participated, completing an instrument containing emergency interventions performed in the care of victims after the occurrence of trauma. The sample consisted of 97 treatments...
January 2017: Revista Brasileira de Enfermagem
https://www.readbyqxmd.com/read/28225874/experimental-burns-comparison-between-silver-sulfadiazine-and-photobiomodulation
#8
Mariana Teixeira Gomes, Gabriela Russo Soeiro Campos, Natália Piccolo, Cristiane Miranda França, Guelton Hirano Guedes, Fabio Lopes, Renata A Belotto, Christiane Pavani, Rafael do Nascimento de Lima, Daniela de Fátima Teixeira da Silva
OBJECTIVE: To analyze morphological characteristics and organization of the collagen fibers of third degree burns from scalding compared to laser therapy and silver sulfadiazine, the latter considered as the gold standard. METHOD: Were selected 12 animals (Rattus norvegicus) also divided into three groups (control group [CG] - untreated burns; sulfadiazine group [SG] - burns were treated with silver sulfadiazine at 1%; laser group [LG] - burns were treated with photobiomodulation)...
January 1, 2017: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/28225476/comparative-postural-control-in-copd-patients-and-healthy-individuals-during-dynamic-and-static-activities
#9
Elias F Porto, Cristiane O Pradella, Carolina M Rocco, Mario Chueiro, Rafaella Q Maia, Fernando F Ganança, Antonio A M Castro, Oliver A Nascimento, José R Jardim
PURPOSE: Patients with chronic obstructive pulmonary disease (COPD) have body balance deficits, with consequent fall risk. It is possible that body sway in patients with COPD affects their ability to perform daily activities. The purpose of this study was to determine whether body balance is similar in patients with COPD and healthy persons when performing static and dynamic activities. In addition, we wanted to assess whether impairment of balance is related to the presence of falls in patients with COPD...
March 2017: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/28224274/immunoevasion-rather-than-intrinsic-oncogenicity-may-confer-mscs-from-non-obese-diabetic-mice-the-ability-to-generate-neural-tumors
#10
Cristian Loretelli, Robert F Moore, Moufida Ben Nasr, Sergio Dellepiane, Murugabaskar Balan, Marwan Mounayar, Vera Usuelli, Basset El Essawy, Francesca D'Addio, Anat O Stemmer-Rachamimov, Gian Vincenzo Zuccotti, Soumitro Pal, Paolo Fiorina, Reza Abdi
No abstract text is available yet for this article.
February 21, 2017: Acta Diabetologica
https://www.readbyqxmd.com/read/28223424/hsp70-inhibition-synergistically-enhances-the-effects-of-magnetic-fluid-hyperthermia-in-ovarian-cancer
#11
Karem A Court, Hiroto Hatakeyama, Sherry Y Wu, Mangala S Lingegowda, Cristian Rodriguez-Aguayo, Gabriel Lopez-Berestein, Lee Ju-Seog, Carlos Rinaldi, Eduardo J Juan, Anil K Sood, Madeline Torres-Lugo
Hyperthermia has been investigated as a potential treatment for cancer. However, specificity in hyperthermia application remains a significant challenge. Magnetic fluid hyperthermia (MFH) may be an alternative to surpass such a challenge, but implications of MFH at the cellular level are not well understood. Therefore, the present work focused on the examination of gene expression after MFH treatment and using such information to identify target genes that when inhibited could produce an enhanced therapeutic outcome after MFH...
February 21, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28223295/a-model-of-chronic-diabetic-polyneuropathy-benefits-from-intranasal-insulin-are-modified-by-sex-and-rage-deletion
#12
Cristiane L de la Hoz, Chu Cheng, Paul Fernyhough, Douglas W Zochodne
Human diabetic polyneuropathy (DPN) is a progressive complication of chronic diabetes mellitus. Preliminary evidence has suggested that intranasal insulin, in doses insufficient to alter hyperglycemia, suppresses the development of DPN. In this work we confirm this finding, but demonstrate that its impact is modified by sex and deletion of RAGE, the receptor for advanced glycosylation endproducts. We serially evaluated experimental DPN in male and female wild type mice and male RAGE null (RN) mice, each with nondiabetic controls, during 16 weeks of diabetes, the final 8 weeks including groups given intranasal insulin...
February 21, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28223142/glucose-capped-silver-nanoparticles-induce-cell-cycle-arrest-in-hela-cells
#13
Elisa Panzarini, Stefania Mariano, Cristian Vergallo, Elisabetta Carata, Gian Maria Fimia, Francesco Mura, Marco Rossi, Viviana Vergaro, Giuseppe Ciccarella, Marco Corazzari, Luciana Dini
This study aims to determine the interaction (uptake and biological effects on cell viability and cell cycle progression) of glucose capped silver nanoparticles (AgNPs-G) on human epithelioid cervix carcinoma (HeLa) cells, in relation to amount, 2×10(3) or 2×10(4) NPs/cell, and exposure time, up to 48h. The spherical and well dispersed AgNPs (30±5nm) were obtained by using glucose as reducing agent in a green synthesis method that ensures to stabilize AgNPs avoiding cytotoxic soluble silver ions Ag(+) release...
February 18, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28222425/post-finasteride-adverse-effects-in-male-androgenic-alopecia-a-case-report-of-vitiligo
#14
Ion G Motofei, David L Rowland, Simona R Georgescu, Mircea Tampa, Stana Paunica, Vlad D Constantin, Cristian Balalau, Mirela Manea, Bogdan C Baleanu, Ioanel Sinescu
Finasteride has proved to be relatively safe and effective in the therapeutic management of male androgenic alopecia. However, literature data report several endocrine imbalances inducing various adverse effects, which often persist after treatment cessation in the form of post-finasteride syndrome. Here we present the case of a 52-year-old man receiving finasteride (1 mg/day) who developed an uncommon adverse effect represented by generalized vitiligo 2 months after finasteride discontinuation. Associated adverse effects encountered were represented by mild sexual dysfunction (as determined by the International Index of Erectile Function, IIEF) and moderate depressive symptoms (according to DSM-V criteria), all of these manifestations aggregating within/as a possible post-finasteride syndrome...
February 22, 2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/28222054/ucp2-expression-is-increased-in-pancreas-from-brain-dead-donors-and-involved-in-cytokine-induced-%C3%AE-cells-apoptosis
#15
Leticia A Brondani, Tatiana H Rech, Gabriela Boelter, Andrea C Bauer, Cristiane B Leitão, Décio L Eizirik, Daisy Crispim
BACKGROUND: Systemic inflammation associated with brain death (BD) decreases islet yield and quality, negatively affecting outcomes of human islet transplantation. A recent study from our group showed an increased expression of uncoupling protein-2 (UCP2) in pancreas from rats with BD as compared with controls. UCP2 is located in the mitochondrial inner membrane and regulates production of reactive oxygen species and glucose-stimulated insulin secretion. It has been suggested that UCP2 also plays a role in β cell apoptosis, but these findings remain controversial...
March 2017: Transplantation
https://www.readbyqxmd.com/read/28221888/histamine-formation-in-a-dry-salted-twaite-shad-alosa-fallax-lacustris-product
#16
Mauro Vasconi, Federica Bellagamba, Cristian Bernardi, Piera Anna Martino, Vittorio Maria Moretti
Landlocked shad is a freshwater clupeid fish ( Alosa fallax lacustris ) whose consumption is associated with the risk of scombrotoxin poisoning. Traditionally, fresh shad are subjected to an artisanal processing procedure, consisting of dry salting and maturation under pressure, to give a fish product named missoltino , which is stored in large metallic barrels and is sold to local consumers and restaurants. In recent years, the introduction of modern food packaging technologies has enabled this product to also be distributed in shops and supermarkets...
January 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28220919/phosphorescent-pt-ii-complexes-bearing-a-monoanionic-c-n-n-luminophore-and-tunable-ancillary-ligands
#17
Marian Hebenbrock, Linda Stegemann, Jutta Kösters, Nikos L Doltsinis, Jens Müller, Cristian A Strassert
A versatile design strategy is presented towards new monoanionic pincer luminophores, showing that cyclometallating C^N^N ligands can yield phosphorescent Pt(ii) complexes even if a neutral 1,2,3-triazole ring is inserted by click chemistry. The overall charge, intermolecular interactions and excited state properties can be manipulated and controlled by varying the nature of the ancillary ligand, and its effect on the structural and the triplet state characteristics can be thoroughly investigated and correlated by means of theory and spectroscopy...
February 21, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28219403/the-kiva-antibullying-program-in-primary-schools-in-chile-with-and-without-the-digital-game-component-study-protocol-for-a-randomized-controlled-trial
#18
Jorge Gaete, Daniela Valenzuela, Cristian Rojas-Barahona, Eduardo Valenzuela, Ricardo Araya, Christina Salmivalli
BACKGROUND: Bullying is a major problem worldwide and Chile is no exception. Bullying is defined as a systematic aggressive behavior against a victim who cannot defend him or herself. Victims suffer social isolation and psychological maladjustment, while bullies have a higher risk for conduct problems and substance use disorders. These problems appear to last over time. The KiVa antibullying program has been evaluated in Finland and other European countries, showing preventive effects on victimization and self-reported bullying...
February 20, 2017: Trials
https://www.readbyqxmd.com/read/28219104/captopril-does-not-potentiate-post-exercise-hypotension-a-randomized-crossover-study
#19
Andréia Cristiane Carrenho Queiroz, Julio Cesar Silva Sousa, Natan Daniel Silva, Eleonora Tobaldini, Katia Coelho Ortega, Edilamar Menezes de Oliveira, Patricia Chakur Brum, Nicola Montano, Decio Mion, Taís Tinucci, Claudia Lucia de Moraes Forjaz
To evaluate whether captopril (3×50 mg/day) potentiates post-resistance exercise hypotension (PREH) in hypertensives (HT), 12 HT men received captopril and placebo for 4 weeks each in a double-blinded, randomized-crossover design. On each therapy, subjects underwent 2 sessions: Control (C - rest) and Resistance Exercise (RE - 7 exercises, 3 sets to moderate fatigue, 50% of 1 RM -repetition maximum). Measurements were taken before and after 30-60 min (Post1) and 7 h (Post2), and ambulatory blood pressure (BP) was monitored for 24 h...
February 20, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28215830/initial-urological-evaluation-and-management-of-children-with-neurogenic-bladder-due-to-myelomeningocele
#20
Cristian Sager, Carol Burek, Juan Pablo Corbetta, Santiago Weller, Javier Ruiz, Ramiro Perea, Enrique Lago, Yesica Gomez, Victor Durán, Juan Carlos López
INTRODUCTION: The proactive management of children with myelomeningocele (MMC) has contributed to decreasing their progression to end-stage renal disease, thanks to early urological evaluation and timing implementation of treatments. OBJECTIVE: To demonstrate that early urological evaluation of the urinary tract in MMC shows functional alterations in most cases, and that it requires medical intervention, even when in some cases the complementary imaging studies do not show any abnormalities...
January 30, 2017: Journal of Pediatric Urology
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