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1.
Mem. Inst. Oswaldo Cruz ; 87(supl.4): 211-4, 1992. tab
Article in English | LILACS | ID: lil-125652

ABSTRACT

The objective of this study is to determine whether various hycanthone resistant strains of schistosomes which have been independently isolated are all affected in the same gene. A strain obtained from a Brazilian patient was compared with a strain of Puerto Rican origin selected in the laboratory. If the mutation conferring resistance involved two different genes, one would expect that the progeny of a cross between the two strains would show complementation, i.e. it would be sensitive to the drug. We have performed such a cross and obtained F1 hybrid worms wich were essentially all resistant, thus suggesting that the mutation conferring resistance in the two strains involves the same gene


Subject(s)
Genetic Complementation Test , Nandrolone/analysis , Schistosoma mansoni/isolation & purification
2.
Invest. med. int ; 14(4): 225-32, feb. 1988. tab, ilus
Article in Spanish | LILACS | ID: lil-65148

ABSTRACT

Para determinar el efecto de la mezcla anticonceptiva desogestrel/etinil estradiol (150/30 mcg) sobre el metabolismo de los lípidos y los riesgos coronarios en las usuarias, se hizo un estudio comparativo con otros compuestos: levonorgestrel, noretindrona y un esquema trifásico a base de levonorgestrel; todos ellos asociados a etinil estradiol. Aunque en general los resultados fueron favorables a todos los compuestos, se advirtió un efecto particular, muy notable, del desogestrel al aumentar las HDL-t en forma creciente a lo largo del consumo. Asimismo mantuvo en cifras menores el colesterol total y los triglicéridos y en niveles bajos las HDL-c. Los índices coronarios reflejaron con claridad estos hallazos, sobre todo el representado por la división del HDL-t entre el colesterol total


Subject(s)
Humans , Female , Cholesterol, HDL/blood , Cholesterol/blood , Coronary Disease/chemically induced , Ethinyl Estradiol/pharmacology , Lipids/metabolism , Nandrolone/analysis , Triglycerides/blood
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