Results: 68

Ultrastructural clarification of the peripherally located actin network in the myelinated axons

Int. j. morphol; 39 (1), 2021
SUMMARY: Despite the existence of a large amount of actin in the axons, the concentration F-actin was quite low in the myelinated axons and almost all the F-actin were located in the peripheries of the myelinated axons. Until now, the ultrastructural localization of F-actin has still not been reported in...

Brachiaria brizantha Grass as a Feedstock for Ethanol Production

HIGHLIGHTS Brachiaria brizantha proved to be a promising biomass for ethanol production. Fermentation was not impaired by the inhibitors furfural and hydroxymethylfurfural....

Antioxidant activity of selenium on bisphenol-induced apoptosis and testicular toxicity of Albino rats

Int. j. morphol; 38 (6), 2020
SUMMARY: Bisphenol A (BPA) is an industrial chemical widely used to make polycarbonate plastics for packaging and epoxy resins. This study sought to examine how selenium (Se) affects BPA toxicity in terms of albino rats' histological structure, antioxidant enzymes and reproductive organs (seminiferous tu...

Aislamiento y caracterización de una cepa temprana de SARS-CoV-2 durante la epidemia de 2020 en Medellín, Colombia

Biomédica (Bogotá); 40 (supl.2), 2020
Introducción. El nuevo coronavirus causante de un brote de enfermedad respiratoria aguda en China en diciembre de 2019 se identificó como SARS-CoV-2. La enfermedad, denominada COVID-19, fue declarada pandemia por la Organización Mundial de la Salud (OMS). El primer caso de COVID-19 en Colombia se repo...

La eEnseñanza de lar anatomía microscópica sin microscopios
The teaching of microscopic anatomy without microscopes

Educ. med. super; 34 (2), 2020
Introducción: Tradicionalmente, las clases prácticas con microscopios ópticos y láminas histológicas han sido el método principal para la enseñanza de la anatomía microscópica a los estudiantes de medicina. En este artículo se propone un cambio de paradigma. Objetivo: Ofrecer argumentos que p...

Brain structure morphology after being fixated with ethanol on electron microscope

Int. j. morphol; 38 (2), 2020
Fixation is one of the processes in preparing histology and pathology. The common material for fixation is buffered formalin including paraformaldehyde. However, the effect of the damaged cells, which is fixed for a long time, causes the research for other fixation materials to become necessary. In addit...

Ameliorative effect of vitamin E on biochemical and ultrastructural changes in artemether-induced renal toxicity in rats

Int. j. morphol; 38 (2), 2020
This experiment was designed to study the administration of normal doses of one of recent antimalarial drug and coadministration of vitamin E on the kidney tissue. A total twenty-four adult male albino rats were used and divided into four groups: the first one served as a control, the second received art...

Anatomical and ultrastructural sex differences in mean diameter and thickness of myelinated axons in adult rat corpus callosum

Int. j. morphol; 38 (2), 2020
Sexual dimorphism exists at all levels of the nervous system. These sex differences could underlie genderrelated differences in behavior and neuropsychological function, as well as the gender differences in the prevalence of various mental disorders such as autism, attention deficit disorders, and schizo...

Antifungal activity of liriodenine on agents of systemic mycoses, with emphasis on the genus Paracoccidioides

Endemic systemic mycoses remain a health challenge, since these opportunistic diseases are increasingly infecting immunosuppressed patients. The simultaneous use of antifungal compounds and other drugs to treat infectious or non-infectious diseases has led to several interactions and undesirable effects....

Pannus y artritis reumatoide: evolución histórica y fisiopatológica

Rev. colomb. reumatol; 26 (2), 2019
RESUMEN La proliferación del tejido sinovial, que es llamada pannus, se ha considerado como una manifestación tardía, inactiva e irreversible de la artritis reumatoide (AR), contrario a lo que históricamente se ha estudiado. Se realizó una búsqueda de la literatura para realizar una revisión narra...