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1.
Rev. argent. microbiol ; 48(3): 196-199, set. 2016. ilus, tab
Article in Spanish | LILACS | ID: biblio-843163

ABSTRACT

Introducción: La esporotricosis es una infección causada por especies pertenecientes al complejo Sporothrix schenckii. Dependiendo de la especie, estos organismos pueden tener virulencia y formas clínicas diferentes. Objetivo: Verificar la virulencia de una cepa de Sporothrix globosa en un modelo murino usando 2 concentraciones de inóculo, en aplicación intraperitoneal o subcutánea. Materiales y métodos: Estudio experimental no aleatorizado en murinos inoculados con una cepa de S. globosa (CBS 14.076 M), por vía intraperitoneal y subcutánea, a 0,5 y 4 de concentración McFarland. Se utilizaron 18 roedores CF-1 (ISP, Santiago, Chile). Resultados: La cepa estudiada no provocó enfermedad ni lesiones, todos los animales sobrevivieron, no hubo desarrollo de hongos en el cultivo de tejidos y el análisis histopatológico de órganos no mostró alteraciones sugerentes de infección. Conclusiones: La cepa de S. globosa estudiada no presentó virulencia en modelos murinos y no provocó enfermedad al ser inoculada a concentración McFarland 0,5 y 4, tanto por vía intraperitoneal como subcutánea.


Introduction: The sporothricosis disease is an infection caused by species included in Sporothrix schenkii complex. Objective: Verify the virulence of a strain of S. globosa using two different concentrations of inoculum by intraperitoneally and subcutaneously, into a mouse model. Materials and methods: Nonrandomized pilot study, in murine inoculated with a strain of S. globosa (CBS 14.076 M) by intraperitoneally and subcutaneously with inoculum concentrations of 0.5 and 4 McFarland. For this purpose 18 rodents CF-1 (ISP, Santiago, Chile) were used. Results: The studied strain did not induce illness or injury on animals, they all survived and neither the tissue culture nor the histopathological analysis showed fungal growth or suggestive infection by organ abnormalities. Conclusions: The S. globosa strain did not present any virulence enough to cause disease at 0.5 and 4.0 McFarland concentration inoculum when inoculated in both intraperitoneally and subcutaneously, in murine models.


Subject(s)
Animals , Rats , Sporotrichosis/microbiology , Sporothrix/isolation & purification , Virulence , Sporotrichosis/pathology
2.
Rev. chil. cir ; 52(5): 535-8, oct. 2000. ilus
Article in Spanish | LILACS | ID: lil-277920

ABSTRACT

La irritación crónica de la mucosa de los divertículos faringoesfágicos puede conducir a la displasia y a la degeneración neoplásica pero es un hecho raro de ver. Se presenta el caso de un paciente de 62 años con un divertículo de Zencker con cuatro años de sintomalogía al que en el estudio se le detecta un carcinoma epidermoide del fondo. Fue operado mediante una simple diverticulectomía, encontrándose una lesión intramural pequeña y sin adenopatías (estadio IIA) de bajo grado (G2)


Subject(s)
Humans , Male , Middle Aged , Carcinoma, Squamous Cell/etiology , Zenker Diverticulum/complications , Carcinoma, Squamous Cell/diagnosis , Carcinoma, Squamous Cell/pathology , Zenker Diverticulum/surgery , Zenker Diverticulum/diagnosis , Digestive System Surgical Procedures/methods
3.
Rev. méd. Chile ; 128(5): 509-12, mayo 2000. tab
Article in Spanish | LILACS | ID: lil-267661

ABSTRACT

Background: the high cost and complexity of therapeutic schemes for the eradication of Helicobacter pylori has stimulated the search of simpler and cheaper treatment options. Aim: To evaluate the efficacy of 3 days of azithromycin 500 mg od, 7 days of amoxycilin 750 mg tid and omeprazole, 20 (Group A) or 40 mg (Group B) on randomization, as a treatment for Helicobacter pylori infection in patients with endoscopically diagnosed peptic ulcer. Methods: H. pylori status of peptic ulcer patients was pathologically confirmed by the examination of five gastric biopsies using the Giemsa stain and by rapid urease testing in two gastric biopsies. H. pylori status was reassessed not less than 28 days after completing treatment. Adverse events and compliance were evaluated. Results: Fifty four patients (29 men, 25 women, mean age 48 years) were enrolled, 28 in Group A and 27 in Group B. Per protocol the infection was cured in 58,8 percent of patients (30/51; 95 percent CI: 45-73 percent). On an intention to treat basis, H pylori infection was cured in 55 percent. Minor side effects including diarrhea and nausea were reported by 32 percent of patients. Ninety five per cent of patients consumed more than 95 percent of prescribed medications. H. pylori was successfully erradicated in 61 percent of group A and 57 percent of group B patients (p= NS). Conclusion: Short term therapy with azithromycin was poorly effective in curing H. pylori infection. The compliance was excellent. Increasing Omeprazole from 20 to 40 mg/day did not improve treatment effectiveness


Subject(s)
Humans , Male , Female , Omeprazole/administration & dosage , Helicobacter pylori/drug effects , Helicobacter Infections/drug therapy , Azithromycin/administration & dosage , Amoxicillin/administration & dosage , Follow-Up Studies , Treatment Outcome , Drug Administration Schedule , Duodenal Ulcer/drug therapy , Stomach Ulcer/drug therapy
4.
Gastroenterol. latinoam ; 9(2): 185-191, sept. 1998. ilus, tab
Article in Spanish | LILACS | ID: lil-362752

ABSTRACT

En la última década la humanidad ha sido víctima de una variedad de infecciones nuevas y desconocidas y otras reemergentes, que aumentan las posibilidades de diagnósticos diferencial. La Leptospirosis, una infección muy rara en Chile., nos ha hecho recordarla a raíz de dos casos que se presentaron con un síndrome séptico febril con ictericia, falla renal y uno de ellos con una neumonia atípica. Se hace una revisión de la literatura y se muestra la necesidad de tener en mente esta enfermedad, por su variedad de presentación, para lograr un diagnóstico y tratamiento oportunos.


Subject(s)
Leptospirosis , Fever , Jaundice , Kidney Diseases , Pneumonia, Mycoplasma
5.
Rev. sanid. def. nac. (Santiago de Chile) ; 6(1): 4-11, ene.-mar. 1989.
Article in Spanish | LILACS, MINSALCHILE | ID: lil-84582

ABSTRACT

Se realiza un recuento de la evolución del estudio de la enfermedad a través de las diversas eras históricas de la humanidad, complementando con una relación del nacimiento y desarrollo de la Anatomía Patológica en Chile


Subject(s)
History, Ancient , History, Medieval , History, 19th Century , History, 15th Century , History, 16th Century , History, 17th Century , History, 18th Century , History, 20th Century , Pathology/history , Famous Persons , History of Medicine
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