Results: 58

Efecto de los impuestos al alcohol: reporte breve de evidencia
Effect of alcohol taxes: brief report of evidence

ANTECEDENTES Y OBJETIVO Considerando que el consumo excesivo de alcohol provoca daños a la salud y potenciales daños al entorno de los bebedores, los gobiernos han aplicado impuestos y políticas de precios de manera de persuadir su consumo. Se ha demostrado que el precio es un factor principal que inf...

Force decay evaluation of latex and non-latex orthodontic intraoral elastics: in vivo study

ABSTRACT Objective: This clinical study was conducted in order to evaluate force decay over time of latex and non-latex orthodontic intraoral elastics. Methods: Patients (n = 15) were evaluated using latex and non-latex elastics in the periods of : 0, 1, 3, 12 and 24 hours. The rubber bands were trans...

Analysis of BMSCs-intervened viscoelasticity of sciatic nerve in rats with chronic alcoholic intoxication

Acta cir. bras; 33 (10), 2018
Abstract Purpose: To investigate the impact of bone mesenchymal stem cells (BMSCs) intervention on the viscoelasticity of sciatic nerve in rats with chronic alcohol intoxication (CAI). Methods: The CAI rat models were prepared, divided into model groups, and treated with either BMSCs or basic fibrobla...

Biomechanic and histologic analysis of fibroblastic effects of tendon to bone healing by transforming growth factor β1 (TGF-β1) in rotator cuff tears

Acta cir. bras; 32 (12), 2017
Abstract Purpose: To evaluate the effect of transforming growth factor β1 (TGF-β1) on tendon-to-bone reconstruction of rotator cuff tears. Methods: Seventy-two rat supraspinatus tendons were transected and reconstructed in situ. At 8 and 16 weeks, specimens of three groups; that is control,...

Antiretroviral therapy and arterial elasticity in HIV-infected patients

Medicina (B.Aires); 77 (5), 2017
Cardiovascular risk is increased in HIV-infected patients and has become a leading cause of morbimortality in this population. The purpose of this study is to compare HIV-infected patients on antiretroviral therapy (ART) and ART-naïve HIV-infected patients regarding arterial elasticity. From September 2...

Vascular Aging and Arterial Stiffness

Arq. bras. cardiol; 109 (3), 2017
Abstract Cardiovascular diseases (CVD) account annually for almost one third of all deaths worldwide. Among the CVD, systemic arterial hypertension (SAH) is related to more than half of those outcomes. Type 2 diabetes mellitus is an independent risk factor for SAH because it causes functional and structu...

Degradación de la Fuerza de los Elásticos Intermaxilares de Látex y no Látex

RESUMEN: El propósito del presente estudio fue comparar la degradación de la fuerza entre los elásticos de látex y no látex de 3/16" y 6 oz. La muestra consistió en 30 elásticos por grupo e intervalo de tiempo haciendo un total de 180 elásticos de látex y 180 de no látex. Se midió la fuerza in...

Discoloration and force degradation of orthodontic elastomeric ligatures

ABSTRACT OBJECTIVE: The aim of the present study was to evaluate color changes and force degradation of orthodontic elastomeric ligatures in different stretching patterns during a 8-weeks period. METHODS: Two elastomers with the minimum and two with the maximum color changing, and gray elastomers of t...

Measurement of expansin activity and plant cell wall creep by using a commercial texture analyzer

Background: Expansins play an important role in cell wall metabolism and fruit softening. Determination of expansin activity is a challenging problem since it depends on measuring cell wall properties by using ad hoc extensometers, a fact that has strongly restricted its study. Then, the objective of the...

Photoelastic analysis of stress generated by Connecticut Intrusion Arch (CIA)

ABSTRACT Objective: The present in vitro study evaluated, by means of the photoelastic technique, the effects generated by the Connecticut Intrusion Arch (CIA), with a 90o bend on the distal surface of molar tubes and using the 4 x 2 appliance on the anterior and posterior regions of the upper dental a...