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https://www.readbyqxmd.com/read/28445848/a-systematic-and-critical-review-on-bioanalytical-method-validation-using-the-example-of-simultaneous-quantitation-of-antidiabetic-agents-in-blood
#1
REVIEW
Mariana Millan Fachi, Letícia Paula Leonart, Letícia Bonancio Cerqueira, Flavia Lada Degaut Pontes, Michel Leandro de Campos, Roberto Pontarolo
A systematic and critical review was conducted on bioanalytical methods validated to quantify combinations of antidiabetic agents in human blood. The aim of this article was to verify how the validation process of bioanalytical methods is performed and the quality of the published records. The validation assays were evaluated according to international guidelines. The main problems in the validation process are pointed out and discussed to help researchers to choose methods that are truly reliable and can be successfully applied for their intended use...
April 13, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28445677/overexpression-of-the-cytokine-baff-and-autoimmunity-risk
#2
Maristella Steri, Valeria Orrù, M Laura Idda, Maristella Pitzalis, Mauro Pala, Ilenia Zara, Carlo Sidore, Valeria Faà, Matteo Floris, Manila Deiana, Isadora Asunis, Eleonora Porcu, Antonella Mulas, Maria G Piras, Monia Lobina, Sandra Lai, Mara Marongiu, Valentina Serra, Michele Marongiu, Gabriella Sole, Fabio Busonero, Andrea Maschio, Roberto Cusano, Gianmauro Cuccuru, Francesca Deidda, Fausto Poddie, Gabriele Farina, Mariano Dei, Francesca Virdis, Stefania Olla, Maria A Satta, Mario Pani, Alessandro Delitala, Eleonora Cocco, Jessica Frau, Giancarlo Coghe, Lorena Lorefice, Giuseppe Fenu, Paola Ferrigno, Maria Ban, Nadia Barizzone, Maurizio Leone, Franca R Guerini, Matteo Piga, Davide Firinu, Ingrid Kockum, Izaura Lima Bomfim, Tomas Olsson, Lars Alfredsson, Ana Suarez, Patricia E Carreira, Maria J Castillo-Palma, Joseph H Marcus, Mauro Congia, Andrea Angius, Maurizio Melis, Antonio Gonzalez, Marta E Alarcón Riquelme, Berta M da Silva, Maurizio Marchini, Maria G Danieli, Stefano Del Giacco, Alessandro Mathieu, Antonello Pani, Stephen B Montgomery, Giulio Rosati, Jan Hillert, Stephen Sawcer, Sandra D'Alfonso, John A Todd, John Novembre, Gonçalo R Abecasis, Michael B Whalen, Maria G Marrosu, Alessandra Meloni, Serena Sanna, Myriam Gorospe, David Schlessinger, Edoardo Fiorillo, Magdalena Zoledziewska, Francesco Cucca
Background Genomewide association studies of autoimmune diseases have mapped hundreds of susceptibility regions in the genome. However, only for a few association signals has the causal gene been identified, and for even fewer have the causal variant and underlying mechanism been defined. Coincident associations of DNA variants affecting both the risk of autoimmune disease and quantitative immune variables provide an informative route to explore disease mechanisms and drug-targetable pathways. Methods Using case-control samples from Sardinia, Italy, we performed a genomewide association study in multiple sclerosis followed by TNFSF13B locus-specific association testing in systemic lupus erythematosus (SLE)...
April 27, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28445362/effect-of-human-fat-graft-on-breast-cancer-metastasis-in-a-murine-model
#3
Roberto Moltó-García, Virina González-Alonso, María Eloísa Villaverde-Doménech, Edurne Novella-Maestre
BACKGROUND: Isolated adipose stem cells have been reported to encourage migration and early metastasis of breast cancer. Mimicking a surgical situation, the authors developed a human breast cancer model to evaluate in vivo whether human adipose tissue promotes tumor growth and invasion. METHODS: Human adipose tissue was obtained from four patients. The MDA-MB-468 cell line was cultured with a lentiviral vector encoding a puromycin resistance gene and mCherry fluorescent protein...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28445251/long-term-follow-up-of-patients-with-chronic-hepatitis-c-treated-with-%C3%AE-interferon-and-ribavirin-antiviral-therapy-clinical-and-fibrosis-impact-of-treatment-response
#4
Patricia Cordero-Ruiz, Isabel Carmona-Soria, Manuel Rodríguez-Téllez, Angel Caunedo-Alvarez, Roberto H Quezada-Pacheco, Alexander Flores-Cucho, Manuel Romero-Gómez, Ángel Vilches-Arenas
BACKGROUND AND GOALS: The slow progression of chronic hepatitis C (CHC) infection requires long observation periods to detect clinical changes. We compare the incidence of clinical events, hepatocellular carcinoma (HCC), overall mortality, liver-related mortality, and fibrosis progression between patients with a sustained virological response (SVR) and nonresponders (NR) after a 13-year follow-up period. STUDY: One hundred and eighty-two CHC patients, who received interferon and ribavirin treatment between 1996 and 2000, were included...
April 25, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28445234/safe-new-approach-to-the-lingual-flap-management-in-mandibular-augmentation-procedures-the-digitoclastic-technique
#5
Roberto Pistilli, Vittorio Checchi, Gilberto Sammartino, Massimo Simion, Pietro Felice
PURPOSE: This article describes the digitoclastic technique, an innovative procedure for coronal displacement of the lingual flap. The new technique has the potential to obtain primary flap closure without surgical risks to the anatomical structures on the lingual side of the mandible. MATERIALS AND METHODS: Reconstruction of an atrophic mandible with guided tissue regeneration (guided bone regeneration) and implant placement is described, using the digitoclastic technique to displace the lingual flap coronally...
April 25, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28445107/hypodermal-adipose-tissue-sonoelastography-for-monitoring-treatment-response-in-patients-with-plaque-psoriasis
#6
Annunziata Dattola, Simone Altobelli, Salvatore Marsico, Domenico Plastina, Steven P Nistico, Armando Cavallo, Roberto Floris, Luca Bianchi, Manlio Guazzaroni
BACKGROUND: Psoriasis (PsO) is a multifactorial chronic and relapsing skin disease that affects about 125 million people in the world. Several studies have demonstrated the link between adipose tissue, inflammation, and PsO. The purpose of our study is to evaluate hypodermal adipose tissue inflammation underneath PsO plaques quantifying tissue elasticity with sonoelastography before and after treatment. The study was conducted at the Department of Dermatology of the University of "Rome Tor Vergata" and Department of Radiology of the University of "Rome Tor Vergata...
April 24, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28445085/regenerative-surgery-in-the-treatment-of-cosmetic-defect-following-nuss-procedure
#7
Flavio Facchini, Marco Ghionzoli, Alessandra Martin, Sara Tanini, Sara Ugolini, Roberto Lo Piccolo, Antonio Messineo
BACKGROUND: In the past decade, the minimally invasive repair of pectus excavatum (MIRPE) has become the treatment of choice for severe pectus excavatum (PE), proving acceptable to excellent cosmetic results. Recently, autologous fat grafting (FG) has been identified in aesthetic and reconstructive surgery to ideally handle volume and contour defects. We report our experience about FG in the treatment of residual minor defects after MIRPE and a proposal for a new indication of this largely adopted technique...
April 26, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28444626/towards-new-human-rights-in-the-age-of-neuroscience-and-neurotechnology
#8
Marcello Ienca, Roberto Andorno
Rapid advancements in human neuroscience and neurotechnology open unprecedented possibilities for accessing, collecting, sharing and manipulating information from the human brain. Such applications raise important challenges to human rights principles that need to be addressed to prevent unintended consequences. This paper assesses the implications of emerging neurotechnology applications in the context of the human rights framework and suggests that existing human rights may not be sufficient to respond to these emerging issues...
December 2017: Life Sciences, Society and Policy
https://www.readbyqxmd.com/read/28444542/risk-factors-for-postoperative-hypocalcemia
#9
Giovanni Docimo, Roberto Ruggiero, Giuseppina Casalino, Gianmattia Del Genio, Ludovico Docimo, Salvatore Tolone
Hypocalcaemia is one of the most common complications after thyroidectomy; however, it is still unclear what preoperative factors could predict this event. The aim of this study was to evaluate the role of risk factors for hypocalcaemia after total thyroidectomy (TT). Consecutive patients who underwent total thyroidectomyat our institution between January 2014 and January 2016 were enrolled. The clinical and pathologic characteristics and surgical details of normocalcemic and hypocalcemic patients were compared...
April 25, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28444525/comparison-of-biometric-measurements-obtained-by-the-verion-image-guided-system-versus-the-auto-refracto-keratometer
#10
Cecilio Velasco-Barona, Guadalupe Cervantes-Coste, Erick Mendoza-Schuster, Claudia Corredor-Ortega, Nadia L Casillas-Chavarín, Alejandro Silva-Moreno, Manuel Garza-León, Roberto Gonzalez-Salinas
PURPOSE: To compare the biometric measurements obtained from the Verion Image-Guided System to those obtained by auto-refracto-keratometer in normal eyes. METHODS: This is a prospective, observational, comparative study conducted at the Asociación para Evitar la Ceguera en México I.A.P., Mexico. Three sets of keratometry measurements were obtained using the image-guided system to assess the coefficient of variation, the within-subject standard deviation and intraclass correlation coefficient (ICC)...
April 25, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28444517/intravascular-large-b-cell-lymphoma-as-a-cause-of-terminal-acute-respiratory-distress-syndrome-atypical-presentation-of-a-rare-disease
#11
Ilaria Lazzari, Caterina Galetti, Giulia Corvalli, Roberto Bernardi, Giordano Gianotti, Carlo Sagramoso, Pietro Calogero
No abstract text is available yet for this article.
April 25, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/28444339/comparison-of-plethysmographic-and-helium-dilution-lung-volumes-in-patients-with-a-giant-emphysematous-bulla-as-selection-criteria-for-endobronchial-valve-implant%C3%A2
#12
Alfonso Fiorelli, Roberto Scaramuzzi, Matteo Pierdiluca, Elisabetta Frongillo, Gaetana Messina, Nicola Serra, Alberto De Felice, Mario Santini
OBJECTIVES: To assess whether the difference in lung volume measured with plethysmography and with the helium dilution technique could differentiate an open from a closed bulla in patients with a giant emphysematous bulla and could be used as a selection criterion for the positioning of an endobronchial valve. METHODS: We reviewed the data of 27 consecutive patients with a giant emphysematous bulla undergoing treatment with an endobronchial valve. In addition to standard functional and radiological examinations, total lung capacity and residual volume were measured with the plethysmographic and helium dilution technique...
April 24, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28444181/allogeneic-human-mesenchymal-stem-cell-infusions-for-aging-frailty
#13
Samuel Golpanian, Darcy L DiFede, Aisha Khan, Ivonne Hernandez Schulman, Ana Marie Landin, Bryon A Tompkins, Alan W Heldman, Roberto Miki, Bradley J Goldstein, Muzammil Mushtaq, Silvina Levis-Dusseau, John J Byrnes, Maureen Lowery, Makoto Natsumeda, Cindy Delgado, Russell Saltzman, Mayra Vidro-Casiano, Marietsy V Pujol, Moisaniel Da Fonseca, Anthony A Oliva, Geoff Green, Courtney Premer, Audrey Medina, Krystalenia Valasaki, Victoria Florea, Erica Anderson, Jill El-Khorazaty, Adam Mendizabal, Pascal J Goldschmidt-Clermont, Joshua M Hare
Background: Impaired endogenous stem cell repair capacity is hypothesized to be a biologic basis of frailty. Therapies that restore regenerative capacity may therefore be beneficial. This Phase 1 study evaluated the safety and potential efficacy of intravenous, allogeneic, human mesenchymal stem cell (allo-hMSC)-based therapy in patients with aging frailty. Methods: In this nonrandomized, dose-escalation study, patients received a single intravenous infusion of allo-hMSCs: 20-million (n = 5), 100-million (n = 5), or 200-million cells (n = 5)...
April 21, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28444180/left-bundle-branch-block-from-cardiac-mechanics-to-clinical-and-diagnostic-challenges
#14
Elena Surkova, Luigi P Badano, Roberto Bellu, Patrizia Aruta, Federica Sambugaro, Gabriella Romeo, Federico Migliore, Denisa Muraru
Left bundle branch block (LBBB) results in an altered pattern of left ventricular (LV) activation and subsequent contraction, causing remarkable changes in LV mechanics, perfusion and workload and ultimately leading to pathologic cardiac remodelling. Clinical and diagnostic notions about the LBBB phenomenon had evolved from just an electrocardiographic pattern to a critically important finding affecting diagnostic and clinical management of many patients and adversely influencing their outcomes. Recent advances in imaging techniques significantly improved the assessment of patients with LBBB and provided additional insights into pathophysiological mechanisms of LV remodelling...
April 20, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28444121/dynamic-laser-speckle-analyzed-considering-inhomogeneities-in-the-biological-sample
#15
Roberto A Braga, Rolando J González-Peña, Dimitri Campos Viana, Fernando Pujaico Rivera
No abstract text is available yet for this article.
April 1, 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28444096/off-label-use-of-rhbmp-2-as-bone-regeneration-strategies-in-mandibular-ameloblastoma-unicystic
#16
Henrique Celestino Lima E Silva, Adonai Peixoto Cheim, Roberto Moreno, Sérgio Luis de Miranda
Jawbone reconstruction after tumor resection is one of the most challenging clinical tasks for maxillofacial surgeons. Osteogenic, osteoinductive, osteoconductive and non-antigenic properties of autogenous bone place this bone as the gold standard for solving problems of bone availability. However, the need for a second surgical site to harvest the bone graft increases significantly both the cost and the morbidity associated with the reconstructive procedures. Bone grafting gained an important tool with the discovery of bone morphogenetic proteins in 1960...
January 2017: Einstein
https://www.readbyqxmd.com/read/28444064/assessment-of-carotid-intima-media-thickness-as-an-early-marker-of-vascular-damage-in-hypertensive-children
#17
Liz Andréa Villela Baroncini, Lucimary de Castro Sylvestre, Camila Varotto Baroncini, Roberto Pecoits
Background: The increased carotid intima-media thickness (CIMT) correlates with the presence of atherosclerosis in adults and describes vascular abnormalities in both hypertensive children and adolescents. Objective: To assess CIMT as an early marker of atherosclerosis and vascular damage in hypertensive children and adolescents compared with non-hypertensive controls and to evaluate the influence of gender, age, and body mass index (BMI) on CIMT on each group. Methods: Observational cohort study...
April 20, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28444043/challenges-for-ensuring-availability-and-accessibility-toin-health-care-services-under-brazil-s-unified-health-system-sus
#18
Ana Paula Cavalcante de Oliveira, Mariana Gabriel, Mario Roberto Dal Poz, Gilles Dussault
Shortages and imbalances in the distribution of the health workforce, are social and political problems that, along with the socio-economic inequality, reduce the access of the population to the health services. This study aims to understand the challenges of SUS policy-makers and managers to ensure the availability and geographical accessibility to health service providers. The analysis was guided by a framework of the health labour market and health policy interventions. Two main problems have been identified: shortage of doctors and maldistribution of professionals between levels of health care and between geographical areas...
April 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28443965/prognosis-determinants-after-cardioverter-defibrillators-implantation-in-brazil
#19
Arn Migowski, Regina Maria de Aquino Xavier, Katia Regina da Silva, Caio Marcos de Moraes Albertini, Elizabeth Sartori Crevelari, Eduardo Infante Januzzi de Carvalho, Alfredo Inácio Fiorelli, Martino Martinelli Filho, Roberto Costa
No abstract text is available yet for this article.
March 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28443942/hemostatic-disorders-induced-by-skin-contact-with-lonomia-obliqua-lepidoptera-saturniidae-caterpillars
#20
Ida Sigueko Sano-Martins, Alaour Candida Duarte, Belsy Guerrero, Roberto Henrique Pinto Moraes, Elvino José Guardão Barros, Carmen Luisa Arocha-Piñango
Patients envenomed by Lonomia sp caterpillars initially experience a mild burning pain, headache, nausea, vomiting, and skin and mucosal hemorrhages. Some patients can rapidly progress to a severe coagulopathy that presents as visceral or intracerebral hemorrhaging. We studied the hemostatic alterations that occurred in 14 patients who were envenomed by Lonomia obliqua in Southern Brazil and presented at the Hospital São Vicente de Paulo (Passo Fundo, RS), Brazil during the summers of 1993 and 1994 when Lonomia antivenom was not yet available for treatment...
April 20, 2017: Revista do Instituto de Medicina Tropical de São Paulo
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