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- W3204075898 abstract "The aim of this study was to evaluate nitric oxide (NO) levels and lipid peroxidation (Malondialdehyde: MDA) in plasma of dogs naturally infected by Ehrlichia canis , and to determine the effect of doxycycline on clinical, hematological, and oxidative parameters. Clinical and hematological parameters and positive serology for E. canis were used to diagnose the disease. Plasma samples were obtained from infected animals ( n = 15) before and after doxycycline treatment (10 mg/kg, daily for 28 days) and from healthy dogs ( n = 8). The concentrations of NO and MDA were determined by Griess’ assay and thiobarbituric acid assay, respectively. Increased plasmatic levels of NO and MDA were observed in infected dogs compared to healthy animals ( P < 0.001), those levels decreased after doxycycline treatment ( P < 0.001). Altered hematological parameters (hemoglobin, hematocrit, leukocyte, and platelet counts) in infected dogs, returned to normal values after antibiotic treatment ( P < 0.001). High and positive correlation was obtained between NO levels and MDA content ( r = 0.7812; P < 0.001). This study shows that dogs infected by E. canis develop oxidative stress that might be involved in the pathophysiology of the disease and highlights the beneficial effect of doxycycline in this infection. Le but de cette étude était d’évaluer les niveaux d’oxyde nitrique (NO) et la peroxydation lipidique (Malondialdehyde : MDA) dans le plasma de chiens naturellement infectés par Ehrlichia canis , et de déterminer l’effet de la doxycycline sur les paramètres cliniques, hématologiques et oxydatifs. Les paramètres cliniques et hématologiques et un examen sérologique positif pour E. canis ont été utilisés pour diagnostiquer la maladie. Des échantillons de plasma ont été obtenus à partir d’animaux infectés ( n = 15) avant et après le traitement à la doxycycline (10 mg/kg, par jour pendant 28 jours) et de chiens sains ( n = 8). Les concentrations de NO et de MDA ont été déterminées respectivement par le test de Griess et le test de l’acide thiobarbiturique. Une augmentation des niveaux plasmatiques de NO et de MDA a été observée chez les chiens infectés par rapport aux animaux sains ( p < 0,001), ces niveaux ont diminué après le traitement à la doxycycline ( p < 0,001). Les paramètres hématologiques altérés (hémoglobine, hématocrite, numération leucocytaire et plaquettaire) chez les chiens infectés, sont revenus à des valeurs normales après le traitement antibiotique ( p < 0,001). Une corrélation élevée et positive a été obtenue entre les niveaux de NO et la teneur en MDA ( r = 0,7812 ; p < 0,001). Cette étude montre que les chiens infectés par E. canis développent un stress oxydatif qui pourrait être impliqué dans la physiopathologie de la maladie et souligne l’effet bénéfique de la doxycycline dans cette infection." @default.
- W3204075898 created "2021-10-11" @default.
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- W3204075898 date "2021-12-01" @default.
- W3204075898 modified "2023-09-27" @default.
- W3204075898 title "Increased plasma levels of nitric oxide and malondialdehyde in dogs infected by Ehrlichia canis: Effect of doxycycline treatment" @default.
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- W3204075898 doi "https://doi.org/10.1016/j.anicom.2021.09.002" @default.
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