Ana María Chávez

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Despite a lot of research aimed at clarifying the mechanism of action of botulinum toxin, mostly at supraspinal levels, a complete understanding of it is still elusive. However, recent investigations, including our own, allow us to suggest that, in facial muscles, the effects of botulinum toxin are not only in the neuromuscular junctions affecting the(More)
A gene encoding an elongation factor LeEF-Ts mt that participates in the protein synthesis process in mitochondria shows strong expression in ripening fruit as compared to other organs. It is strongly up-regulated during the first stages of the ripening process in parallel with the climacteric rise in respiration. LeEF-Ts mt expression is stimulated by(More)
Multifocal motor neuropathy (MMN) is a clinical entity affecting the peripheral nerve system mainly. We present here a Colombian man, 37 year-old, who presented MMN, and interestingly, displayed abnormal responses in the blink reflex after electrical stimulation of the supraorbital nerves. These findings allow us to suggest that the lesion distribution in(More)
The C-type lectin receptor mMGL is expressed exclusively by myeloid antigen presenting cells (APC) such as dendritic cells (DC) and macrophages (Mφ), and it mediates binding to glycoproteins carrying terminal galactose and α- or β-N-acetylgalactosamine (Gal/GalNAc) residues. Trypanosoma cruzi (T. cruzi) expresses large amounts of mucin (TcMUC)-like(More)
  • Ana María Chávez-Hernández, Miriam Carolina Medina Núñez, Luis Fernando Macías-García, Ana María Chávez
  • 2008
SUMMARY Suicide occurrence is ever more often amongst 15-24-year-old youngsters, and it ranks as the second or third cause of death in some countries. Likewise, suicide attempts are more frequent amongst teenagers than amongst any other age group. Several studies agree that the portion of population with the highest suicide risk is that ranging from ages 15(More)
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