2015
DOI: 10.4103/0974-2727.154785
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Depressed Monocytic Activity may be a Predictor for Sepsis

Abstract: Introduction:Trauma is one of the leading causes of mortality worldwide with infections as important causes of death in such patients. Bacterial infections cause activation of monocytes with excessive synthesis of pro-inflammatory cytokines. Hence, this prospective study was conducted to assess the activity of monocytes in traumatized sepsis patients using flow cytometry and to assess if they have any prognostic potential.Materials and Methods:A total of 16 consecutive trauma patients with sepsis and having po… Show more

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Cited by 11 publications
(9 citation statements)
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“…In sepsis, increased circulating levels of myeloid-derived suppressor cells (MDSCs) have been observed; these cells secrete multiple anti-inflammatory cytokines, including IL-10 and transforming growth factor-β (TGF β), which suppress immune function [5,28]. In addition, an apoptotic decrease in antigen-presenting dendritic cells and monocytes has been observed, along with a loss of their proinflammatory cytokine production [29][30][31][32][33]. Human leukocyte antigen-antigen D related (HLA-DR) expression on monocytes and dendritic cells is also downregulated, which decreases responsiveness, and the failure of monocytes to recover HLA-DR levels predicts a poor outcome from sepsis [34].…”
Section: Late Immunosuppressive Eventsmentioning
confidence: 99%
“…In sepsis, increased circulating levels of myeloid-derived suppressor cells (MDSCs) have been observed; these cells secrete multiple anti-inflammatory cytokines, including IL-10 and transforming growth factor-β (TGF β), which suppress immune function [5,28]. In addition, an apoptotic decrease in antigen-presenting dendritic cells and monocytes has been observed, along with a loss of their proinflammatory cytokine production [29][30][31][32][33]. Human leukocyte antigen-antigen D related (HLA-DR) expression on monocytes and dendritic cells is also downregulated, which decreases responsiveness, and the failure of monocytes to recover HLA-DR levels predicts a poor outcome from sepsis [34].…”
Section: Late Immunosuppressive Eventsmentioning
confidence: 99%
“…The role of B-lymphocytes in sepsis exceeds the production and secretion of immunoglobulins, they also modulate the innate immune response, produce cytokines and act as APCs [11,12]. In the early course of sepsis, a decrease in lymphocytes, monocytes and antigen-presenting dendritic cells has been observed [13,14]. The delicate mechanisms underlying sepsis-induced lymphopenia have not yet been conclusively explained.…”
Section: Late and Persistent Immunosuppressive Eventsmentioning
confidence: 99%
“…In addition to sepsis-induced lymphopenia, an increase in apoptosis of monocytes and APCs could be shown, which is accompanied by a significant loss of pro-inflammatory cytokine production [13,14,[19][20][21][22][23][24][25][26][27]. The remaining cells also present with a decreased expression of the human leukocyte antigen DR (HLA-DR) on their surface, resulting in a diminished ability to recognize pathogens and to interact with T cell receptors via opsonisation.…”
Section: Monocytes and Antigen-presenting Cellsmentioning
confidence: 99%
“…A IL-6 é uma citocina pró-inflamatória produzida por macrófagos, linfócitos T e fibroblastos em resposta à infecção bacteriana. Esta citocina está envolvida na estimulação da produção de proteínas de fase aguda pelos hepatócitos e sua produção encontra-se aumentada durante a sepse humana [119][120][121]. Um estudo realizado com 19 pacientes com choque séptico, onde 16 deles evoluíram para óbito, demonstrou que os níveis de IL-6 estavam sempre aumentados durante a fase aguda da doença.…”
Section: Discussionunclassified