Publications by authors named "Nicoly Olaia"

Chagas disease (CD) is a neglected illness affecting approximately seven million individuals, with vector transmission occurring via triatomine bugs. The Rhodniini tribe comprises 24 species, grouped into the and genera. Given the importance of accurately identifying CD vectors, the taxonomy of spp.

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Background: Among the 18 genera of the Triatominae subfamily, three stand out for their diversity and epidemiological importance: Triatoma, Panstrongylus, and Rhodnius. Rhodnius includes 21 species that can transmit Trypanosoma cruzi (the etiological agent of Chagas disease, also known as American trypanosomiasis) and Trypanosoma rangeli. The Rhodnius prolixus complex comprises seven species, including Rhodnius marabaensis, Rhodnius prolixus, and Rhodnius robustus, which occur in the northern region of Brazil.

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In Latin America, Chagas disease has been mostly transmitted to humans by contact with the feces or urine of triatomine species infected with the protozoan Trypanosoma cruzi. There are currently 156 species in the subfamily Triatominae, distributed in 18 genera and five tribes. The prolixus group of the genus Rhodnius is composed of 11 species.

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Article Synopsis
  • All triatomine species are potential vectors for Chagas disease, but the genera Triatoma, Panstrongylus, and Rhodnius are particularly significant in understanding its epidemiology.
  • Cytogenetic analysis reveals that the species within the Rhodnius genus exhibit minimal chromosomal variation, prompting an examination of their chromatin and chromosome DNA composition.
  • Findings indicate that most Rhodnius species possess euchromatic autosomes without AT- and CG-rich blocks, and intriguing patterns of CG-rich heterochromatin suggest a unique evolutionary trajectory for specific groups within the genus.
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