Marcel Marín
University of Antioquia
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Marcel Marín.
Transactions of The Royal Society of Tropical Medicine and Hygiene | 2010
Ana Margarita Montalvo Álvarez; Jorge Fraga Nodarse; Ivón Montano Goodridge; Lianet Monzote Fidalgo; Marcel Marín; Gert Van der Auwera; Jean-Claude Dujardin; IvánDarÃo Velez Bernal; Carlos Muskus
Leishmania panamensis and Leishmania guyanensis are two species of the subgenus Viannia that are genetically very similar. Both parasites are usually associated with cutaneous leishmaniasis, but also have the potential to cause the mucocutaneous form of the disease. In addition, the study of foci and consequently the identification of vectors and probable reservoirs involved in transmission require a correct differentiation between both species, which is important at epidemiological level. We explored the possibility of identifying these species by using restriction fragment length polymorphisms (RFLP) in the gene coding for heat-shock protein 70 (hsp70). Previously, an hsp70 PCR-RFLP assay proved to be very effective in differentiating other Leishmania species when HaeIII is used as restriction enzyme. Based on hsp70 sequences analysis, BccI was found to generate species-specific fragments that can easily be recognized by agarose gel electrophoresis. Using the analysis of biopsies, scrapings, and parasite isolates previously grouped in a cluster comprising both L. panamensis and L. guyanensis, we showed that our approach allowed differentiation of both entities. This offers the possibility not only for identification of parasites in biological samples, but also to apply molecular epidemiology in certain countries of the New World, where several Leishmania species could coexist.
Parasitology Research | 2000
Marcel Marín; Carlos Muskus; José Robinson Ramírez; Luis F. Arbelaez; Juan Fernando Alzate; Christof Berberich
Abstract The Leishmania infantum Mat-1 gene – recently described in L. major as a highly stage-specific, metacyclogenesis-associated transcript – has been cloned. The 420-bp Mat-1 coding region is conserved with respect to the L. major gene (82% sequence homology). Analysis of the predicted amino-acid sequence reveals structural motifs showing homology with the class of leucine-zipper transcription factors. Southern-blot hybridization analysis suggests that Mat-1 is a low-copy-number gene, probably consisting of two gene copies. The recombinant Mat-1 protein expressed in fusion with the Escherichia coli maltose-binding protein shows a tendency to form dimers in the presence of the leucine-rich C-terminal domain. Bacteria expressing the Mat-1 open reading frame are highly growth-attenuated and tend to delete or modify the insert, which suggests that expression of Mat-1 is toxic for the bacteria.
Memorias Do Instituto Oswaldo Cruz | 1998
Christof Berberich; Marcel Marín; José Robinson Ramírez; Carlos Muskus; Iván Darío Vélez
Biomedica | 2008
Ana M. Montalvo; Lianet Monzote; Jorge Fraga; Ivón Montano; Carlos Muskus; Marcel Marín; Simonne De Doncker; Iván Darío Vélez; Jean-Claude Dujardin
Biomedica | 2013
Edison Osorio; Carolina Aguilera; Nelson Naranjo; Marcel Marín; Carlos Muskus
Biomedica | 2016
Ana M. Montalvo; Jorge Fraga; Ivón Montano; Lianet Monzote; Gert Van der Auwera; Marcel Marín; Carlos Muskus
Biomedica | 2016
Ana M. Montalvo; Jorge Fraga; Ivón Montano; Lianet Monzote; Gert Van der Auwera; Marcel Marín; Carlos Muskus
Biomedica | 2008
Marcel Marín; Yudy Alexandra Aguilar; José Robinson Ramírez; Omar Triana; Carlos Muskus
Biomedica | 2008
Marcel Marín; Yudy Alexandra Aguilar; José Robinson Ramírez; Omar Triana; Carlos Muskus
Vitae-revista De La Facultad De Quimica Farmaceutica | 2014
Edison Osorio; Carolina Aguilera; Nelson Naranjo; Marcel Marín; Carlos Muskus