Se registra por vez primera la presencia del delfín de Fraser La-genodelphis hosei para el Golfo de Venezuela, mediante el hallazgo de restos óseos encontrados el 8 de agosto de 2002 en la Isla Zapara... more
Human tumor necrosis factor (hTNF) mediates a variety of biologic activities, which are dependent on the attachment of hTNF to cell-surface receptors. To identify regions of the hTNF protein involved in binding hTNF to its receptor, we... more
Cytotoxic T lymphocytes (CTLs) specific for conserved viral antigens can respond to different strains of virus, in contrast to antibodies, which are generally strain-specific. The generation of such CTLs in vivo usually requires... more
We have recently shown that direct injection of DNA can be an effective vaccine strategy eliciting both humoral and cell-mediated immune responses. Vectors were designed specifically for vaccination by direct DNA injection and refined to... more
Cytotoxic T lymphocytes (CTLs) expressing the CD8 surface marker recognize peptides in association with major histocompatibility complex (MHC) class I molecules. Although most peptides expressed on MHC class I molecules are derived from... more
... stirring hot oiate. A maanelic soin vane is olaced into the conical reaction vial and a waterf1112 oealcdr stlrrlng not plate comb nat on replaces the son c batn The other exper mental parameters remaln the same ments also ...