Results: 37

The probable radioprotective role of Acacia nilotica L. against biochemical and cytogenetic disorders induced in gamma irradiated male rats

Biosci. j. (Online); 39 (), 2023
Gum Arabic (Acacia nilotica L.) is a respected plant that has many nutrients and curative practices. It hinders, improves, or manages many disorders. The radio-protective activity of Acacia nilotica was investigated against γ-rays-induced testicle damage in rats. Twenty-four rats were correspondingly di...

Inicio de la Dosimetría Biológica en Costa Rica y su importancia en la atención de poblaciones sobreexpuestas a radiaciones

Poblac. salud mesoam; 19 (2), 2022
Resumen Introducción: el laboratorio de citogenética del Instituto de Investigaciones en Salud (INISA) de la Universidad de Costa Rica estableció un Servicio de Dosimetría Biológica en enero del 2020 utilizando biomarcadores citogenéticos de exposición a radiaciones ionizantes. Es el primero de su...

Captación tiroidea de yodo radioactivo 131 en 24 horas en adultos jóvenes eutiroideos residentes de gran altitud

Cuad. Hosp. Clín; 62 (1), 2021
INTRODUCCIÓN: el tiroides exhibe una gran avidez por el yodo radioactivo (I131) que al ser fijado por ésta glándula puede determinarse, desde afuera, aprovechando el hecho de que las radiaciones gamma atraviesan los tejidos blandos del cuello y pueden registrarse (Gammagrafía) a distancias apreciable...

Efecto radioprotector del ácido tánico y vinos de la var vitis vinífera L. cv tannat en Saccharomyces cerevisiae

El vino tinto variedad Vitis vinifera L. cv Tannat en los últimos años ha tomado relevancia por su alta concentración de polifenoles, esto le podría significar un rol protector sobre el genoma disminuyendo la formación de lesiones oxidativas. Los efectos a nivel celular de las radiaciones ionizantes...

Nanogels as prospective Biomaterial: Radio-induced Synthesis, Characterization, and Biological Assays

Rev. cuba. invest. bioméd; 40 (supl.1), 2021
Nowadays, there is a growing interest in biodegradable polymers-based materials due to their diverse application in the biomedical field. Most studied systems involve biocompatible micro and nanodevices, such as liposomes, dendrimer, micelles or polymeric nanogels. The use of Radiation Technology, specif...

Characterization and evaluation of the enzymatic activity of tetanus toxin submitted to cobalt-60 gamma radiation

Tetanus toxin blocks the release of the inhibitory neurotransmitters in the central nervous system and causes tetanus and its main form of prevention is through vaccination. The vaccine is produced by inactivation of tetanus toxin with formaldehyde, which may cause side effects. An alternative way is the...

Midgut cells alteration in gamma-irradiated beetles (Blaps polycresta, Coleoptera: Tenebrionidae)

Braz. j. biol; 80 (2), 2020
Abstract This study was conducted to examine the effect of gamma radiation on biological specimens. Thus, our concept is to clarify that exposure to accumulated dose of 0.2 Gy gamma rays (0.66 rad/Sec. dose rate) from Cs137 source induces cellular perturbations in the midgut epithelium of the F1 progeny ...

Synthesis, characterization, and in vitro evaluation of gamma radiationinduced PEGylated isoniazid

Background: The search for innovative anti-tubercular agents has received increasing attention in tuberculosis chemotherapy because Mycobacterium tuberculosis infection has steadily increased over the years. This underlines the necessity for new methods of preparation for polymer-drug adducts to treat th...

Genotyping-by-sequencing based single nucleotide polymorphisms enabled Kompetitive Allele Specific PCR marker development in mutant Rubus genotypes

Background: Rubus is an economically important fruit crop across the globe. Recently, several Rubus mutant genotypes with improved agronomic traits have been developed using gamma ray irradiation. This study investigated genetic diversity and variations in Rubus mutant genotypes using single nucleotide p...

Heartwood and sapwood in eucalyptus trees: non-conventional approach to wood quality

An. acad. bras. ciênc; 90 (1), 2018
ABSTRACT This study evaluated the quality of heartwood and sapwood from mature trees of three species of Eucalyptus, by means of the qualification of their proportion, determination of basic and apparent density using non-destructive attenuation of gamma radiation technique and calculation of the density...