| Title: | Attraction of phlebotomine sandflies to volatiles from skin odors of individuals residing in an endemic area of tegumentary leishmaniasis |
| Author(s): | Tavares DDS; Salgado VR; Miranda JC; Mesquita PRR; Rodrigues FM; Barral-Netto M; de Andrade JB; Barral A; |
| Address: | "Instituto Goncalo Moniz-Fiocruz-Salvador, Bahia-Brazil. Faculdade de Medicina da Universidade Federal da Bahia (UFBA)-Salvador, Bahia-Brazil. Faculdade de Medicina do Centro Universitario Christus (UNICHRISTUS)-Fortaleza, Ceara -Brazil. Instituto de Quimica da Universidade Federal da Bahia (UFBA)-Salvador, Bahia-Brazil. Instituto Nacional de Ciencia e Tecnologia de Investigacao em Imunologia (iii-INCT)-Salvador, Bahia-Brazil. Instituto Nacional de Ciencia e Tecnologia em Energia e Ambiente (INCT-EA)-Salvador, Bahia-Brazil" |
| DOI: | 10.1371/journal.pone.0203989 |
| ISSN/ISBN: | 1932-6203 (Electronic) 1932-6203 (Linking) |
| Abstract: | "BACKGROUND: Many studies have investigated what could attract insects of medical importance and a crucial role has lately been attributed to human skin odors. Most of these researches have been concerned with mosquitoes, e.g., vectors of dengue and malaria. Little is known about volatile organic compounds (VOCs) from human skin odors and their effects on leishmania vectors. OBJECTIVE: The present study aimed to identify the VOCs from human skin that can be attractive to female anthropophilic phlebotomine sandflies. RESULTS: Forty-two VOCs were identified from skin odors of 33 male volunteers, seven of which were tested in wind tunnel assays employing field-captured phlebotomine sandflies (75.4% identified as Lutzomyia intermedia). Hexane and (E)-oct-3-en-1-ol (octenol) were used as negative and positive controls, respectively. 2-Phenylacetaldehyde (hereafter called phenylacetaldehyde), 6-methylhept-5-en-2-one (also known as sulcatone), nonadecane and icosane were found to activate female phlebotomine sandflies, but only phenylacetaldehyde, 6-methylhepten-5-en-2-one and icosane elicited attraction responses. CONCLUSIONS: These results suggest that phenylacetaldehyde, 6-methylhepten-5-en-2-one and icosane may be suitable candidates for attractiveness experimentation in the field which can be an important tool to develop strategies concerning human beings protection against phlebotomine sandflies bites and consequently against leishmaniasis" |
| Keywords: | Acetaldehyde/analogs & derivatives/analysis Adolescent Adult Alkanes/analysis Animals Brazil Endemic Diseases Female Humans Insect Bites and Stings/prevention & control Insect Vectors/*parasitology/*physiology Ketones/analysis Leishmania/pathogenicity Lei; |
| Notes: | "MedlineTavares, Diva da Silva Salgado, Vanessa Riesz Miranda, Jose Carlos Mesquita, Paulo R R Rodrigues, Frederico de Medeiros Barral-Netto, Manoel de Andrade, Jailson Bittencourt Barral, Aldina eng Research Support, Non-U.S. Gov't 2018/09/25 PLoS One. 2018 Sep 24; 13(9):e0203989. doi: 10.1371/journal.pone.0203989. eCollection 2018" |
