Impact of autologous whole blood administration upon experimental mouse models of acute Trypanosoma cruzi infection
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | The Journal of venomous animals and toxins including tropical diseases (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992018000100316 |
Resumo: | Abstract Background: Autologous whole blood (AWB) administration is described as alternative/complementary medical practice widely employed in medical and veterinary therapy against infections, chronic pathologies and neoplasias. Our aim is to investigate in vivo biological effect of AWB using healthy murine models under the course of Trypanosoma cruzi acute infection. Methods: The first set of studies consisted of injecting different volumes of AWB and saline (SAL) into the posterior region of quadriceps muscle of healthy male Swiss mice under distinct therapeutic schemes evaluating: animal behavior, body and organ weight, hemogram, plasmatic biochemical markers for tissue damage and inflammatory cytokine levels and profile. To assess the impact on the experimental T. cruzi infection, different schemes (prior and post infection) and periods of AWB administration (from one up to 10 days) were conducted, also employing heterologous whole blood (HWB) and evaluating plasma cytokine profile. Results: No major adverse events were observed in healthy AWB-treated mice, except gait impairment in animals that received three doses of 20 μL AWB in the same hind limb. AWB and SAL triggered an immediate polymorphonuclear response followed by mononuclear infiltrate. Although SAL triggered an inflammatory response, the kinetics and intensity of the histological profile and humoral mediator levels were different from AWB, the latter occurring earlier and more intensely with concomitant elevation of plasma IL-6. Inflammatory peak response of SAL, mainly composed of mononuclear cells with IL-10, was increased at 24 h. According to the mouse model of acute T. cruzi infection, only minor decreases (< 30%) in the parasitemia levels were produced by AWB and HWB given before and after infection, without protecting against mortality. Rises in IFN-gamma, TNF-alpha and IL-6 were detected at 9 dpi in all infected animals as compared to uninfected mice but only Bz displayed a statistically significant diminution (p= 0.02) in TNF-alpha levels than infected and untreated mice. Conclusions: This study revealed that the use of autologous whole blood (AWB) in the acute model employed was unable to reduce the parasitic load of infected mice, providing only a minor decrease in parasitemia levels (up to 30%) but without protecting against animal mortality. Further in vivo studies will be necessary to elucidate the effective impact of this procedure. |
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oai:scielo:S1678-91992018000100316 |
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The Journal of venomous animals and toxins including tropical diseases (Online) |
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Impact of autologous whole blood administration upon experimental mouse models of acute Trypanosoma cruzi infectionAutologous bloodAlternative therapyMouse modelsTrypanosoma cruziAbstract Background: Autologous whole blood (AWB) administration is described as alternative/complementary medical practice widely employed in medical and veterinary therapy against infections, chronic pathologies and neoplasias. Our aim is to investigate in vivo biological effect of AWB using healthy murine models under the course of Trypanosoma cruzi acute infection. Methods: The first set of studies consisted of injecting different volumes of AWB and saline (SAL) into the posterior region of quadriceps muscle of healthy male Swiss mice under distinct therapeutic schemes evaluating: animal behavior, body and organ weight, hemogram, plasmatic biochemical markers for tissue damage and inflammatory cytokine levels and profile. To assess the impact on the experimental T. cruzi infection, different schemes (prior and post infection) and periods of AWB administration (from one up to 10 days) were conducted, also employing heterologous whole blood (HWB) and evaluating plasma cytokine profile. Results: No major adverse events were observed in healthy AWB-treated mice, except gait impairment in animals that received three doses of 20 μL AWB in the same hind limb. AWB and SAL triggered an immediate polymorphonuclear response followed by mononuclear infiltrate. Although SAL triggered an inflammatory response, the kinetics and intensity of the histological profile and humoral mediator levels were different from AWB, the latter occurring earlier and more intensely with concomitant elevation of plasma IL-6. Inflammatory peak response of SAL, mainly composed of mononuclear cells with IL-10, was increased at 24 h. According to the mouse model of acute T. cruzi infection, only minor decreases (< 30%) in the parasitemia levels were produced by AWB and HWB given before and after infection, without protecting against mortality. Rises in IFN-gamma, TNF-alpha and IL-6 were detected at 9 dpi in all infected animals as compared to uninfected mice but only Bz displayed a statistically significant diminution (p= 0.02) in TNF-alpha levels than infected and untreated mice. Conclusions: This study revealed that the use of autologous whole blood (AWB) in the acute model employed was unable to reduce the parasitic load of infected mice, providing only a minor decrease in parasitemia levels (up to 30%) but without protecting against animal mortality. Further in vivo studies will be necessary to elucidate the effective impact of this procedure.Centro de Estudos de Venenos e Animais Peçonhentos (CEVAP/UNESP)2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992018000100316Journal of Venomous Animals and Toxins including Tropical Diseases v.24 2018reponame:The Journal of venomous animals and toxins including tropical diseases (Online)instname:Universidade Estadual Paulista (UNESP)instacron:UNESP10.1186/s40409-018-0157-8info:eu-repo/semantics/openAccessPavão,Beatriz PhilotDemarque,Kelly CristinaBatista,Marcos MeuserOliveira,Gabriel Melo deSilva,Cristiane França daSilva,Francisca Hildemagna Guedes daCaputo,Luzia Fátima GonçalvesCascabulho,Cynthia MachadoBarcinski,Marcello AndréSoeiro,Maria de Nazaré Correiaeng2018-09-19T00:00:00Zoai:scielo:S1678-91992018000100316Revistahttp://www.scielo.br/jvatitdPUBhttps://old.scielo.br/oai/scielo-oai.php||editorial@jvat.org.br1678-91991678-9180opendoar:2018-09-19T00:00The Journal of venomous animals and toxins including tropical diseases (Online) - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Impact of autologous whole blood administration upon experimental mouse models of acute Trypanosoma cruzi infection |
title |
Impact of autologous whole blood administration upon experimental mouse models of acute Trypanosoma cruzi infection |
spellingShingle |
Impact of autologous whole blood administration upon experimental mouse models of acute Trypanosoma cruzi infection Pavão,Beatriz Philot Autologous blood Alternative therapy Mouse models Trypanosoma cruzi |
title_short |
Impact of autologous whole blood administration upon experimental mouse models of acute Trypanosoma cruzi infection |
title_full |
Impact of autologous whole blood administration upon experimental mouse models of acute Trypanosoma cruzi infection |
title_fullStr |
Impact of autologous whole blood administration upon experimental mouse models of acute Trypanosoma cruzi infection |
title_full_unstemmed |
Impact of autologous whole blood administration upon experimental mouse models of acute Trypanosoma cruzi infection |
title_sort |
Impact of autologous whole blood administration upon experimental mouse models of acute Trypanosoma cruzi infection |
author |
Pavão,Beatriz Philot |
author_facet |
Pavão,Beatriz Philot Demarque,Kelly Cristina Batista,Marcos Meuser Oliveira,Gabriel Melo de Silva,Cristiane França da Silva,Francisca Hildemagna Guedes da Caputo,Luzia Fátima Gonçalves Cascabulho,Cynthia Machado Barcinski,Marcello André Soeiro,Maria de Nazaré Correia |
author_role |
author |
author2 |
Demarque,Kelly Cristina Batista,Marcos Meuser Oliveira,Gabriel Melo de Silva,Cristiane França da Silva,Francisca Hildemagna Guedes da Caputo,Luzia Fátima Gonçalves Cascabulho,Cynthia Machado Barcinski,Marcello André Soeiro,Maria de Nazaré Correia |
author2_role |
author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Pavão,Beatriz Philot Demarque,Kelly Cristina Batista,Marcos Meuser Oliveira,Gabriel Melo de Silva,Cristiane França da Silva,Francisca Hildemagna Guedes da Caputo,Luzia Fátima Gonçalves Cascabulho,Cynthia Machado Barcinski,Marcello André Soeiro,Maria de Nazaré Correia |
dc.subject.por.fl_str_mv |
Autologous blood Alternative therapy Mouse models Trypanosoma cruzi |
topic |
Autologous blood Alternative therapy Mouse models Trypanosoma cruzi |
description |
Abstract Background: Autologous whole blood (AWB) administration is described as alternative/complementary medical practice widely employed in medical and veterinary therapy against infections, chronic pathologies and neoplasias. Our aim is to investigate in vivo biological effect of AWB using healthy murine models under the course of Trypanosoma cruzi acute infection. Methods: The first set of studies consisted of injecting different volumes of AWB and saline (SAL) into the posterior region of quadriceps muscle of healthy male Swiss mice under distinct therapeutic schemes evaluating: animal behavior, body and organ weight, hemogram, plasmatic biochemical markers for tissue damage and inflammatory cytokine levels and profile. To assess the impact on the experimental T. cruzi infection, different schemes (prior and post infection) and periods of AWB administration (from one up to 10 days) were conducted, also employing heterologous whole blood (HWB) and evaluating plasma cytokine profile. Results: No major adverse events were observed in healthy AWB-treated mice, except gait impairment in animals that received three doses of 20 μL AWB in the same hind limb. AWB and SAL triggered an immediate polymorphonuclear response followed by mononuclear infiltrate. Although SAL triggered an inflammatory response, the kinetics and intensity of the histological profile and humoral mediator levels were different from AWB, the latter occurring earlier and more intensely with concomitant elevation of plasma IL-6. Inflammatory peak response of SAL, mainly composed of mononuclear cells with IL-10, was increased at 24 h. According to the mouse model of acute T. cruzi infection, only minor decreases (< 30%) in the parasitemia levels were produced by AWB and HWB given before and after infection, without protecting against mortality. Rises in IFN-gamma, TNF-alpha and IL-6 were detected at 9 dpi in all infected animals as compared to uninfected mice but only Bz displayed a statistically significant diminution (p= 0.02) in TNF-alpha levels than infected and untreated mice. Conclusions: This study revealed that the use of autologous whole blood (AWB) in the acute model employed was unable to reduce the parasitic load of infected mice, providing only a minor decrease in parasitemia levels (up to 30%) but without protecting against animal mortality. Further in vivo studies will be necessary to elucidate the effective impact of this procedure. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992018000100316 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992018000100316 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1186/s40409-018-0157-8 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Centro de Estudos de Venenos e Animais Peçonhentos (CEVAP/UNESP) |
publisher.none.fl_str_mv |
Centro de Estudos de Venenos e Animais Peçonhentos (CEVAP/UNESP) |
dc.source.none.fl_str_mv |
Journal of Venomous Animals and Toxins including Tropical Diseases v.24 2018 reponame:The Journal of venomous animals and toxins including tropical diseases (Online) instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
The Journal of venomous animals and toxins including tropical diseases (Online) |
collection |
The Journal of venomous animals and toxins including tropical diseases (Online) |
repository.name.fl_str_mv |
The Journal of venomous animals and toxins including tropical diseases (Online) - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
||editorial@jvat.org.br |
_version_ |
1748958540500828160 |