Authors: A.C. Duarte, A.I.C. Menezes, E.S. Devens, J.M. Roth, G.L. Garcias and M.G. Martino-Roth
Trisomy 13 is a clinically severe entity; 85% of the patients do not survive beyond one year, and most children die before completing six months of age. We report a female child, 28 months old, white, the fourth child of a non-consanguineous couple, who presented trisomy 13. The child was born at term, from a vaginal delivery,.. Read More»
Authors: Tessa N. Campbell, Francis Y.M. Choy
Gaucher disease, the most common type of lysosomal storage disorder, is characterized by an inherited deficiency of the membrane-associated hydrolase, glucocerebrosidase. Glucocerebrosidase catalyzes the hydrolysis of glucocerebroside to ceramide and glucose, a crucial step in the recycling of membrane sphingolipids. The exorb.. Read More»
Authors: Djamel Drider, Sadjia Bekal and Herve Prevost
Citrate is present in many natural substrates, such as milk, vegetables and fruits, and its metabolism by lactic acid bacteria (LAB) plays an important role in food fermentation. The industrial importance of LAB stems mainly from their ability to convert carbohydrates into lactic acid and, in some species, like Lactococcus lac.. Read More»
Authors: Claudia Alessandra Fortes Aiub, Luis Felipe Ribeiro Pinto and Israel Felzenszwalb
Like all nitrosamines, N-nitrosodiethylamine (NDEA) requires metabolic activation in order to exert its carcinogenic effects. This activation involves cytochrome P450s (CYP), which generates unstable metabolites that react with the DNA of cells in the immediate vicinity of metabolite formation. Although NDEA is carcinogenic, i.. Read More»
Authors: Horacio Cardoso, Beatriz Crispino, Adriana Mimbacas and Manuel Enrique Cardoso
Cystic fibrosis is the most common hereditary disease in populations of European descent, with its prevalence depending on the populations and ethnic groups studied. In contrast to Europe and North America, there is little information about this disease in Latin America. Uruguay currently has a human population of 3,000,000, w.. Read More»
Authors: Eduardo Sergio da Silva, C�©lia Maria Ferreira Gontijo,Raquel da Silva Pacheco and Reginaldo Pe�§anha Brazil
The polymerase chain reaction (PCR) is a simple, rapid procedure that has been adapted for the diagnosis of leishmaniasis. In the present study, 85 blood samples and seven bone marrow aspirates from 85 patients with clinical symptoms suggestive of visceral leishmaniasis from the metropolitan region of Belo Horizonte in the Bra.. Read More»
Authors: Maria Luiza Be�§ak, Leonardo Setsuo Kobash
The evolution of the metazoa has been characterized by gene redundancy, generated by polyploidy, tandem duplication and retrotransposition. Polyploidy can be detected by looking for duplicated chromosomes or segments of orthologous chromosomes in post-polyploid animals. It has been proposed that the evolutionary role of polypl.. Read More»
Authors: Ana Tereza Ribeiro de Vasconcelos, Guest Editor and Project Coordinator
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Authors: Marta S.P. Carepo, Juliana S. Nina de Azevedo, Jorge I.R. Porto, Alexandra R. Bentes-Sousa, Jacqueline da Silva Batista, Artur L.C. da Silva, Maria P.C. Schneider
Chromobacterium violaceum is a Gram-negative bacterium found in a wide variety of tropical and subtropical ecosystems. The complete genome sequence of C. violaceum ATCC 12472 is now available, and it has considerable biotechnological potential for various applications, such as environmental detoxification, as well as medical a.. Read More»
Authors: FÃ?¡bio Teixeira Duarte, FabÃ?Âola Marques de Carvalho, Uaska Bezerra e Silva, KÃ?¡tia Castanho Scortecci, Carlos Alfredo Galindo Blaha, Lucymara Fassarella Agnez-Lima, Silvia Regina, Batistuzzo de Medeiros
Chromobacterium violaceum is a Gram-negative β-proteobacterium that inhabits a variety of ecosystems in tropical and subtropical regions, including the water and banks of the Negro River in the Brazilian Amazon. This bacterium has been the subject of extensive study over the last three decades, due to its biotechnological.. Read More»