Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 2 de 2
Filter
Add filters








Year range
1.
Rev. Inst. Med. Trop. Säo Paulo ; 45(3): 131-135, May-Jun. 2003.
Article in English | LILACS | ID: lil-342164

ABSTRACT

Cervical cancer constitutes a major health problem in developing countries like Bolivia. The roles of certain genotypes of human papillomaviruses (HPVs) in the pathogenesis of cervical cancer is well established. The prevalence of HPV infection among sexually active women varies greatly. Information regarding HPV infection in Bolivia is very much scarce, specially in regions like the Amazonian lowland. We studied 135 healthy women living in four rural localities of the Bolivian Amazon. Presence of HPV in DNA extracted from cervical swabs was analyzed using a reverse line hybridization assay. The estimated overall HPV infection prevalence among the studied rural localities was 5.9 percent (ranging from 0-16.6 percent). These values were unexpectedly low considering Bolivia has a high incidence of cervical cancer. The fact that Amazonian people seem to be less exposed to HPV, makes it likely that some other risk factors including host lifestyle behaviors and genetic background may be involved in the development of cervical cancer in this population


Subject(s)
Adolescent , Humans , Female , Adult , Middle Aged , Papillomaviridae , Papillomavirus Infections , Tumor Virus Infections , Bolivia , DNA, Viral , Nucleic Acid Hybridization , Papillomavirus Infections , Polymerase Chain Reaction , Population Surveillance , Prevalence , Risk Factors , Tumor Virus Infections , Vaginal Smears
2.
Biofarbo ; 4(4): 5-13, dic. 1995. ilus
Article in Spanish | LILACS | ID: lil-285438

ABSTRACT

Se purificó Peroxidasa a partir de 3 fuentes vegetales: Raphanus sativus (rábano común), Bolivian radish (rábano procedente de semillas mejoradas) y Amoracia lapathifolia (horse-radish ó raíz picante). Se obtuvo un extracto crudo de cada especie, se efectuó una precipitación etanólica, separación de fracciones activas de peso molecular semejante mediante cromatografía de exclusión molecular y aislamiento de sub-fracciones activas en función a su comportamiento acido básico frente a un intercambiador aniónico. La sub-fracción de actividad enzimática específica más elevada (aislada a partir de la variedad Bolivian radish, aproximadamente 9 y 5 veces superior en relación a las sub-fracciones semejantes de rábano común y de raíz picante), fue conjugado satisfactoriamente a la anti-IgG humana (producida en conejo), lo cual alentaría la posibilidad de su aplicación en las pruebas de inmunodiagnóstico. Se partió de 25 gr. de cada vegetal (tubérculos y raices) obteniendose aproximadamente 1 mg. de enzima activa


Subject(s)
Raphanus , Bolivia , Horseradish Peroxidase
SELECTION OF CITATIONS
SEARCH DETAIL