Correction: Outcomes of Trypanosoma cruzi and Trypanosoma evansi infections on health of Southern coati (Nasua nasua), crab-eating fox (Cerdocyon thous), and ocelot (Leopardus pardalis) in the Brazilian Pantanal

Santos, Filipe Martins; Macedo, Gabriel Carvalho de; Barreto, Wanessa Teixeira Gomes; Oliveira‐Santos, Luiz Gustavo Rodrigues; García, Carolina; Mourão, Guilherme; Porfírio, Grasiela Edith de Oliveira; Marino, Elizangela Domenis; André, Marcos Rogério; Perles, Lívia; Oliveira, Carina Elisei de; Andrade, Gisele Braziliano de; Jansen, Ana Maria; Herrera, Heitor Miraglia

doi:10.1371/journal.pone.0205613

Cited by 14 publications

(18 citation statements)

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“…Similar to these findings were found in the current study, which revealed that Hb concentration, PCV, and RBCs decreased significantly in the animal that suffered from the infection compared to the control group. Besides, these findings were also confirmed by several studies [ 23 , 24 , 28 – 30 ]. Furthermore, infected animals were observed with higher means of WBCs, neutrophils, and lymphocytes when compared with the healthy control camels.…”

Section: Discussionsupporting

confidence: 84%

“…Examination of hematological and biochemical parameters provides a picture of the condition of the living body, especially in cases of disease such as Trypanosomiasis. Trypanosomiasis causes a decrease in Hb and PCV in camels and different animal species [ 23 – 25 ]. Trypanosomiasis is associated with hemolysis, which may result in a reduction in the life span of RBCs and extensive erythrophagocytosis [ 26 ].…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, infected animals were observed with higher means of WBCs, neutrophils, and lymphocytes when compared with the healthy control camels. These findings indicate that an initial enhanced immunological response occurred and it was followed by the immunosuppressive effect of trypanosome [ 23 ].…”

Section: Discussionmentioning

confidence: 99%

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Changes of reproductive indices of the testis due to Trypanosoma evansi infection in dromedary bulls (Camelus dromedarius): Semen picture, hormonal profile, histopathology, oxidative parameters, and hematobiochemical profile

et al. 2020

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Objective: IThis study was designed for the investigation of the effect of infection by Trypanosoma evansi on the changes of reproductive indices of the testis, causing reproductive failure in dromedary bulls ( Camelus dromedarius ). Materials and methods: Seventy-five bulls were used for monitoring of the changes in the semen characteristics, reproductive hormones, hematobiochemical profiles, histopathological characters in the testis, and oxidative biomarkers. The animals were divided into two groups. Group A represented the uninfected or control group, while group B represented the infected group. Group B was again divided into two subgroups, such as acute and chronic infected animals. Results: Results showed that the semen analysis of infected camels revealed the presence of alterations in the morphology of sperms, especially the heads and tails, as compared to control animals. The hormonal profile indicated a significant decrease in the luteinizing hormone, follicle- stimulating hormone, and testosterone levels, accompanied by the rise in the cortisol level in infected camels compared with the negative control. The histopathology and testicular degeneration were found to be associated with other disorders in infected camels. The oxidative profile and protein oxidation were promoted in infected testicles, indicating the occurrence of harmful effects in the cell. Conclusion: It is concluded that T. evansi infection in dromedary bulls causes severe damage to the testicular tissue and decreases the reproductive hormone levels associated with severe morphological disorders in sperms due to oxidative stress resulting from the infection. All these findings indicate that T. evansi can cause reproductive failure and fertility damage.

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Section: Discussionsupporting

confidence: 84%

Section: Discussionmentioning

confidence: 99%

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Changes of reproductive indices of the testis due to Trypanosoma evansi infection in dromedary bulls (Camelus dromedarius): Semen picture, hormonal profile, histopathology, oxidative parameters, and hematobiochemical profile

et al. 2020

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“…For instance, studies in procyonids, particularly of genus Procyon and Nasua, showed their host participation in the wild cycle of T. cruzi and some of them have pointed out them as probable reservoirs [11,[13][14][15][16]. Such research additionally reveals a clear difference between these species within host-parasite interaction.…”

Section: Introductionmentioning

confidence: 99%

Prevalence and Epitope Recognition of Anti-Trypanosoma cruzi Antibodies in Two Procyonid Species: Implications for Host Resistance

Villalobos

Muñoz-García

Rodríguez-Cabo-Mercado³

et al. 2020

Pathogens

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More than 180 mammalian species have been found naturally infected with Trypanosoma cruzi. Many of them play an important role in the maintenance of this parasite. In particular, new studies have appeared which indicate that some species of Procyonidae family may play a role as T. cruzi hosts, however, more data are needed to evaluate their long-term physiological response to parasite infection, especially for specific antibodies. In this study, antibodies to T. cruzi were detected and prevalence and epitope recognition were assessed by ELISA (using discrete typing unit (DTU) I as antigen) and WB (using DTU I and DTU II as antigens) and sera from two procyonid species obtained through five-year follow-up of two semicaptive populations living in the same habitat. Marked heterogeneity in antigens recognition between species and differences in seroprevalence (p = 0.0002) between white-nosed coatis (Nasua narica), 51.8% (115/222), and common raccoons (Procyon lotor), 28.3% (23/81), were found. Antigens with high molecular weight when DTU-I was used were the most recognized, while a greater antigen diversity recognition was observed with DTU-II; for white-nosed coatis, low-molecular-weight antigens were mainly recognized, while for common raccoons proteins with molecular weights greater than 80 kDa were recognized most. These divergent humoral immune responses could be related to an alleged pattern of recognition receptors and major histocompatibility complex molecules difference in the procyonids species.

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“…However, the knowledge about the influence of T. cruzi on hematological parameters of free-living opossum remains scarce. Since studies showed harmful effects of T. cruzi infection on free-living mammals (Alves et al, 2011; Olifiers et al, 2015; Carnevali et al, 2017; Santos et al, 2018), the present study aimed to evaluate the influence of T. cruzi infection on hematological parameters of white-ear opossums ( D. albiventris ) from Campo Grande, Mato Grosso do Sul, Brazil.…”

Section: Introductionmentioning

confidence: 99%

The influence of parasitism by Trypanosoma cruzi in the hematological parameters of the white ear opossum (Didelphis albiventris) from Campo Grande, Mato Grosso do Sul, Brazil

Nantes

Barreto

Santos

et al. 2019

International Journal for Parasitology: Parasites and Wildlife

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Considered ecologically generalist, Didelphis albiventris is reported as reservoir for different species of parasites, especially Trypanosoma cruzi . However, the knowledge about the influence of T. cruzi on hematological parameters of free-living opossum remains scarce. The present study aimed to evaluate the influence of T. cruzi on hematological parameters of white-ear opossums ( D. albiventris ) from Campo Grande, Mato Grosso do Sul, Brazil. The blood samples and biometric data were collected from 40 opossums captured by Tomahawk and Sherman traps in six urban forest fragments located in the city. The health of these animals was inferred, mainly, by means of blood parameters (PCV, RBC, WBC, MCV and WBC differential). Molecular detection of T. cruzi infection was performed by nested polymerase chain reaction (nPCR), using 18S and 24Sα rDNA region as target. Paired-t-test and simple linear regression were used for statistical analysis. No significant difference was observed between the averages of hematological variables in relation to gender and body condition. The molecular diagnosis showed that 32.5% (13/40) of the opossums were infected by T. cruzi , which presented lymphocytosis (3.4 ± 1.5) and eosinophilia (0.09 ± 0.13). Path analysis showed that T. cruzi infection resulted in increased numbers of lymphocytes and indirectly decreased the body condition of opossums. Moreover T. cruzi infection resulted in a direct effect on decrease of MCV. Overall, our results suggest that T. cruzi infection may represent a risk to health of opossums since the lymphocytosis may cause a secondary damage on body condition of infected animals.

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Correction: Outcomes of Trypanosoma cruzi and Trypanosoma evansi infections on health of Southern coati (Nasua nasua), crab-eating fox (Cerdocyon thous), and ocelot (Leopardus pardalis) in the Brazilian Pantanal

Cited by 14 publications

References 1 publication

Changes of reproductive indices of the testis due to Trypanosoma evansi infection in dromedary bulls (Camelus dromedarius): Semen picture, hormonal profile, histopathology, oxidative parameters, and hematobiochemical profile

Changes of reproductive indices of the testis due to Trypanosoma evansi infection in dromedary bulls (Camelus dromedarius): Semen picture, hormonal profile, histopathology, oxidative parameters, and hematobiochemical profile

Prevalence and Epitope Recognition of Anti-Trypanosoma cruzi Antibodies in Two Procyonid Species: Implications for Host Resistance

The influence of parasitism by Trypanosoma cruzi in the hematological parameters of the white ear opossum (Didelphis albiventris) from Campo Grande, Mato Grosso do Sul, Brazil

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