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Giuseppe, Acri; Annastella, Falcone; Giannetto, Claudia; Elisabetta, Giudice; Giuseppe, Piccione; Barbara, Testagrossa; Cicero, Luca; Cassata, Giovanni; Simona, Di Pietro
Scientific reports, 05/2022, Volume: 12, Issue: 1Journal Article
Raman spectroscopy is a rapid qualitative and quantitative technique that allows the simultaneous determination of several components in biological fluids. This methodology concerns an alternative technique to distinguish between non-healthy and healthy subjects. Leishmaniasis is a zoonosis of world interest, the most important agent is L. infantum. Dogs are the principal reservoirs affected by a broad spectrum of clinical features. During a clinical exam, blood samples were collected in tubes without anticoagulants, from twenty two dogs. One aliquot was used for serological test for Leishmaniasis, one aliquot was subjected to the Raman spectroscopic analysis. Animals were divided into two groups of equal subjects, Leishmania group (LG) constituted by infected dogs, and control group (CG) constituted by healthy dogs. The acquired spectra were different in the region 1200-1370 cm , in which it is possible to distinguish the amide III vibration (~ 1300 cm ). In LG, an evident shift to the shortwave region is observed in spectral frequencies of the band centered at ~ 1250 cm . Our results distinguished between LD group and CG. Further studies are necessary to exclude the effect of metabolic modification due to disease on the recorded spectra changes and to consolidate the achievability of Raman spectroscopy as rapid and less expensive diagnosis of Leishmaniasis.
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