Results: 20

Importancia biológica de los telómeros
Biological importance of telomeres

Rev. Asoc. Méd. Argent; 137 (1), 2024
Se exponen los hallazgos históricos y la importancia biológica de los telómeros en la vida celular y en los aspectos genéticos del ADN humano. (AU)...

Establishment of deer heart identification method and development of the detection kit based on mitochondrial cytochrome B gene

BACKGROUND Deer heart is a valuable traditional Chinese medicinal material. At present, there is no functional component or symbol component for deer heart, and it is difficult to identify them by physical and chemical methods. In this study, we established deer heart identification method based on mtDNA...

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...

Evaluation of eight protocols for genomic DNA extraction of Hypostomus commersoni Valenciennes, 1836 (Loricariidae: Siluriformes)

Braz. j. biol; 81 (3), 2021
Abstract The principle and the techniques applied in DNA extraction play a pivotal role in the obtention of a purified genetic material. The present study investigates the efficiency of eight protocols in the DNA extraction of Hypostomus commersoni, an essential component of South American freshwater ich...

A novel method for DNA delivery into bacteria using cationic copolymers

Braz. j. med. biol. res; 54 (5), 2021
Amphiphilic copolymers have a wide variety of medical and biotechnological applications, including DNA transfection in eukaryotic cells. Still, no polymer-primed transfection of prokaryotic cells has been described. The reversible addition-fragmentation chain transfer (RAFT) polymer synthesis technique a...

Comparison of phenol-chloroform and a commercial deoxyribonucleic acid extraction kit for identification of bloodmeal sources from triatomines (Hemiptera: Reduviidae)

Abstract INTRODUCTION: Knowledge of triatomine bloodmeal sources is essential for understanding vector-host interactions in Trypanosoma cruzi transmission cycles. Expensive commercial deoxyribonucleic acid (DNA) extraction kits are widely used for bloodmeal identification. This study assessed the perfo...

Influence of genetic polymorphisms in genes of bone remodeling and angiogenesis process in the apical periodontitis

Braz. dent. j; 29 (2), 2018
Abstract Persistent apical periodontitis (AP) is a situation involving an inflammatory and immune response caused mainly by anaerobic polymicrobial infection of the root canal system and the outcome and follow-up of the root canal treatment has been reported as intimately related to host response. The ap...