| sequence analysis of selected regions of the env (v3 loop and gp41) and gag (p7) reading frames of ethiopian human immunodeficiency virus type 1 strains. | amplified polymerase chain reaction (pcr) products, corresponding to the v3 loop and gp41 of the env, and p7 of the gag region, from proviral dna of several ethiopian and swedish hiv-1 strains were sequenced. of the six amino acids (gpgraf) that constitute the principal neutralizing determinant (pnd) within the v3 loop, the ethiopian isolates all showed two amino acid changes (gpgqtf). four to five other substitutions were found in the amino acids flanking the pnd. substitution of alanine (a) fo ... | 1993 | 8435043 |
| distribution of lymphocyte subsets in healthy human immunodeficiency virus-negative adult ethiopians from two geographic locales. | immunological values for 562 factory workers from wonji, ethiopia, a sugar estate 114 km southeast of the capital city, addis ababa, ethiopia, were compared to values for 218 subjects from akaki, ethiopia, a suburb of addis ababa, for whom partial data were previously published. the following markers were measured: lymphocytes, t cells, b cells, nk cells, cd4(+) t cells, and cd8(+) t cells. a more in depth comparison was also made between akaki and wonji subjects. for this purpose, various diffe ... | 2001 | 11687459 |