Results: 13

Standardization of an organic DNA extraction method from dried blood spots and its downstream molecular applications in neonatal screening and diagnostic confirmation of lysosomal disorders

Clin. biomed. res; 42 (3), 2022
Introduction: Dried blood spot (DBS) samples have been used for diagnostic purposes since their introduction in the neonatal screening of phenylketonuria almost 50 years ago. The range of its application has been extended to modern approaches, such as next-generation sequencing (NGS) for molecular geneti...

Comparison between Enzyme Immunoassays Performed on Samples of Dried Blood and Serum for Toxoplasmosis Prenatal Screening: Population-based Study

Abstract Objective Most prenatal screening programs for toxoplasmosis use immunoassays in serum samples of pregnant women. Few studies assess the accuracy of screening tests in dried blood spots, which are of easy collection, storage, and transportation. The goals of the present study are to determine ...

Soroprevalência da Hepatite C e sua relação com outras infecções de importância no acompanhamento perinatal em gestantes do estado do Piauí

A infecção pelo vírus da hepatite C (HCV) leva a cronicidade na maioria dos casos com possível evolução para cirrose e carcinoma hepatocelular. O diagnóstico laboratorial é feito através da pesquisa de anticorpos anti-HCV ou do HCV-RNA no soro ou plasma de indivíduos infectados. Porém o uso de...

Molecular analysis of the CYP21A2 gene in dried blood spot samples

Medicina (B.Aires); 80 (3), 2020
Congenital adrenal hyperplasia (CAH) is an autosomal recessive disorder due to a deficiency of enzymes involved in cortisol biosynthesis. In more than 90% of cases, CAH is secondary to deleterious mutations in the CYP21A2 gene leading to 21-hydroxilase deficiency (21OHD). The CYP21A2 gene is located on t...

Hormona de crecimiento en sangre de papel filtro para el diagnóstico de deficiencia de hormona de crecimiento

Rev. chil. pediatr; 90 (2), 2019
INTRODUCCIÓN: El diagnóstico de deficiencia de hormona de crecimiento (DHC) es difícil de establecer, y se puede asociar a serias complicaciones, especialmente en el período neonatal. La prueba de estímulo de secreción de hormona de crecimiento (HC) se considera de elección para el diagnóstico, p...

Association of anti-nuclesome and anti C1q antibodies with lupus nephritis in an Egyptian cohort of patients with systemic lupus erythematosus

Adv Rheumatol; 59 (), 2019
Abstract Introduction: Anti-nucleosome and anti-C1q antibodies demonstrated an association with the development of glomerulonephritis in systemic lupus erythematosus (SLE). Some investigators have proposed that monitoring anti- C1q and anti-nucleosome antibodies might be valuable for making predictions ...

Initial evaluation of universal immunization with a single dose against hepatitis A virus in Central Brazil

Braz. j. infect. dis; 22 (3), 2018
ABSTRACT Vaccination against the hepatitis A virus (HAV) administered in two doses has been used effectively in universal child immunization programs in several countries. A single-dose vaccination was adopted in some low-income countries in an attempt to reduce costs without losing effectiveness. In 201...

Estudo da estabilidade de novas substâncias psicoativas (NPS) em amostras de sangue seco em papel (DBS), e sua aplicação em toxicologia forense

Resumo: Introdução: A classe de drogas de abuso conhecida como novas substâncias psicoativas ou, ainda, drogas desenhadas (do inglês new psychoactive substances (NPS) ou designer drugs) é composta por substâncias químicas obtidas a partir de alterações estruturais de substâncias ou mistura de s...

Neonatal screening for severe combined immunodeficiency in Brazil

J. pediatr. (Rio J.); 92 (4), 2016
Abstract Objective To apply, in Brazil, the T-cell receptor excision circles (TRECs) quantification technique using real-time polymerase chain reaction in newborn screening for severe combined immunodeficiency and assess the feasibility of implementing it on a large scale in Brazil. Methods 8715 newbor...