| [prevalence of human immunodeficiency virus (hiv) infection and its relationship with other sexually transmitted diseases in a group of prostitutes from huixtla, chiapas]. | we investigated the hiv prevalence rate in 106 female prostitutes residing in huixtla, state of chiapas, which is a small town in the southeastern part of mexico, from february of 1989 to january of 1990. we used an immunoenzymatic method (serodia). the mean age was 35 years ranging from 17 to 43. sixty six women (62%) were from central america, and the remainder had been born in mexico. the hiv antibody was not detected in the women, but 39 (37%) had a sexually transmitted disease: the more fre ... | 1991 | 1866497 |
| inhibition of hiv-1 reverse transcriptase, toxicological and chemical profile of calophyllum brasiliense extracts from chiapas, mexico. | calophyllum species are sources of calanolides, which inhibit human immunodeficiency virus type 1 reverse transcriptase (hiv-1 rt). the hexane extract of the leaves from c. brasiliense collected in soconusco, state of chiapas, mexico, analyzed by hplc showed to contain apetalic acid, calanolides b, and c. it showed potent anti-hiv-1 rt inhibition (ic(50)=20.2++g/ml), but was not toxic in mice (ld(50)=1.99g/kg). the histological study of the mice treated at the highest dose revealed no alteration ... | 2011 | 21723379 |