Distinguishing Molecular Features and Clinical Characteristics of a Putative New Rhinovirus Species, Human Rhinovirus C (HRV C)

Background: Human rhinoviruses (HRVs) are the most frequently detected pathogens in acute respiratory tract infections (ARTIs) and yet little is known about the prevalence, recurrence, structure and clinical impact of individual members. During 2007, the complete coding sequences of six previously unknown and highly divergent HRV strains were reported. To catalogue the molecular and clinical features distinguishing the divergent HRV strains, we undertook, for the first time, in silico analyses of all available polyprotein sequences and performed retrospective reviews of the medical records of cases in which variants of the prototype strain, HRV-QPM, had been detected

Modulation of coronary flow and cardiomyocyte size by sensory fibers

Cardiac tissue is densely innervated by sensory neurons that an believed to play important modulatory roles in cardiac functions. In this study, pretreatment of neonate mts with capsaicin was performed. In adult rats, cardiomyocyte size and amount of fibrous tissue in left ventricles as well as in vitro coronary flow were evaluated, the chronotropic and inotropic responses to beta-adrenoceptor agonists (norepinephrine and isoproterenol), muscarinic agonists (carbachol and pilocarpine), and calcitonin gene-related peptide (CGRP) were also investigated with the use of the isolated right atria preparation. Capsaicin pretreatment significantly (P<0.05) reduced both basal coronary flow (18% reduction) and cardiomyocyte size (34% reduction) without affecting the amount of fibrous tissues in the left ventricles. The positive inotropic and chronotropic effects in response to norepinephrine in the isolated rat heart did not significantly differ between control and capsaicin-treated rats, Similarly, the positive chronotropic effects in response to norepinephrine, isoproterenol, and CGRP as well as the negative chronotropic responses to carbachol and pilocarpine in the isolated light atria were not affected by capsaicin pretreatment, Our data are consistent with the suggestion that reductions of both basal coronary flow and cardiomyocyte size seen in hearts from capsaicin-pretreated rats may be consequences of CGRP depletion. The cardiomyocyte size reduction produced by capsaicin treatment may be related to a modulatory role of CGRP as a growth factor

PRE1BRAZIL Protocol: A Randomized Controlled Trial to Evaluate the Effectiveness and Safety of the DPP-4 Inhibitor Alogliptin in Delaying the Progression of Stage 2 Type 1 Diabetes

Jaquellyne Gurgel Penaforte-Saboia,1,2,&ast; Carlos Eduardo Barra Couri,3,&ast; Natasha Vasconcelos Albuquerque,2,4,&ast; Lana Livia Peixoto Linard,1,2,&ast; Daniel Autran Cavalcante Araújo,5,&ast; Sherida Karanini Paz de Oliveira,6 Thisciane Ferreira Pinto Gomes,2 Marcelo Maia Pinheiro,7 Maria Helane Costa Gurgel Castelo,2 Virgínia Oliveira Fernandes,2,4 Renan Magalhães Montenegro Júnior1,2,4,&ast; 1Department of Clinical Medicine, Federal University of Ceará, Fortaleza, CE, Brazil; 2Clinical Research Unit, Walter Cantídio University Hospital, Federal University of Ceará/ EBSERH Fortaleza, Fortaleza, CE, Brazil; 3Center for Cell-Based Therapy, Regional Blood Center of Ribeirão Preto, Ribeirão Preto School of Medicine, University of São Paulo, Ribeirão Preto, SP, Brazil; 4Department of Community Health, Federal University of Ceará, Fortaleza, CE, Brazil; 5Department of Internal Medicine, Sinai Grace Hospital/Detroit Medical Center, Detroit, MI, USA; 6Ceará State University, Fortaleza, CE, Brazil; 7UNIVAG, University Center, Faculty of Medicine, Várzea Grande, Mato Grosso, Brazil&ast;These authors contributed equally to this workCorrespondence: Renan Magalhães Montenegro Júnior, Hospital Complex (CH) of UFC/EBSERH, Rua Coronel Nunes de Melo 1142, Fortaleza, Ceará, 60430-270, Brazil, Tel +55 8533668600, Fax +55 8533668619, Email [email protected]: The incidence of Type 1 Diabetes Mellitus (T1DM) is on the rise. Since there is no curative treatment, it is urgent to look for therapies that can delay disease progression and protect pancreatic β-cells. Dipeptidyl peptidase-4 inhibitors (DPP-4i) have shown potential in modulating inflammation and preventing β-cell destruction. This protocol describes an upcoming trial to evaluate the effectiveness of the DPP-4i alogliptin in delaying the progression of stage 2 (presymptomatic) to stage 3 (symptomatic) T1DM.Patients and Methods: We propose a two-year, two-arm, multicenter, randomized, open-label clinical trial targeting Brazilian patients aged 18 to 35 with stage 2 T1DM. The study, facilitated by the custom-developed “PRE1BRAZIL” web application, aims to enroll 130 participants. They will be randomly assigned in a 1:1 ratio to either a treatment group (alogliptin 25 mg daily plus regular clinical and laboratory assessments) or a control group (regular assessments only). The primary outcome is the rate of progression to stage 3 T1DM. Secondary outcomes include changes in A1c levels, glucose levels during a 2-hour oral glucose tolerance test (OGTT), C-peptide levels, exogenous insulin requirements, Insulin-Dose Adjusted A1c (IDAA1c), and the incidence of diabetic ketoacidosis (DKA) in those advancing to stage 3.Discussion: This protocol outlines the first randomized clinical trial (RCT) to investigate the impact of a DPP-4i in the presymptomatic stage of T1DM. The trial is designed to provide critical insights into the role of DPP-4i in the secondary prevention of T1DM. Utilizing the “PRE1BRAZIL” web application is expected to enhance participant enrollment and reduce operational costs.Registration: Brazilian Registry of Clinical Trials.Keywords: type 1 diabetes, web applications, DPP-4i, stage 2 T1DM, clinical trial protoco

Acurácia do diagnóstico de enfermagem “disposição para melhora da esperança” em pacientes renais crônicos

RESUMO Objetivo Analisar a acurácia do diagnóstico “Disposição para melhora da Esperança” em pacientes renais crônicos. Método Estudo transversal com 62 pacientes em clínica de hemodiálise entre agosto a novembro de 2015. Utilizou-se a Escala de Esperança de Herth para a construção das definições das características definidoras da North American Nursing Diagnosis Association International. Analisaram-se medidas de sensibilidade, especificidade, valor preditivo, razão de verossimilhança e odds ratio das características definidoras do diagnóstico. Resultados 82,22% apresentaram o diagnóstico. Verificou-se que as características definidoras “Expressa desejo de intensificar a coerência entre expectativas e desejos” e “Expressa o desejo de reforçar a resolução de problemas para alcançar as metas” aumentou em onze e cinco vezes, respectivamente, a chance de possuírem o diagnóstico. Conclusão “Expressa desejo de intensificar a coerência entre expectativas e desejos” e “Expressa o desejo de reforçar a resolução de problemas para alcançar as metas” apresentaram boas medidas de acurácia