Medizinische Universität Graz - Research portal

Go directly to the nagivation.
Go directly to the content.

Navigation/Search

Selected Publication:

SHR Neuro Cancer Cardio Lipid Metab Microb

Grzalja, N; Cicvaric, T; Knezevic, D; Kuharic, J; Sustic, A; Bakota, B; Komen, S; Tokmadzic, VS.
Frequency and perforin expression of different lymphocyte subpopulations in patients with lower limb fracture and thoracic injury.
Injury. 2017; 48 Suppl 5:S1-S7 Doi: 10.1016/S0020-1383(17)30730-1
Web of Science PubMed FullText FullText_MUG

Co-authors Med Uni Graz: Bakota Bore
Altmetrics:
Dimensions Citations:
Plum Analytics:
Scite (citation analytics):
Abstract:: Trauma with multiple injuries is associated with a high risk of complications, which may be related to excessive stimulation of inflammatory and anti-inflammatory responses. Although the effects of polytrauma on the immune response have been well established at the cellular and molecular levels, there is little information about the changes in the cytolytic potential of immunocompetent cells, including expression of cytotoxic molecules such as perforin. Therefore, the objective of the present study was to analyse and compare differences in the frequency and perforin expression of leukocyte subpopulations in the peripheral blood of patients with lower limb fracture, thoracic injury, and simultaneous lower limb fracture and thoracic injury. Forty-five patients with trauma injury (15 patients with lower limb injury, 15 patients with thoracic injury, and 15 patients with simultaneous lower limb and thoracic injury) were included in the study. Peripheral blood of 15 sex- and age-matched healthy volunteers served as the control group. Peripheral blood samples were taken from all subjects included in the study and peripheral blood mononuclear cells were isolated by gradient centrifugation. The frequency of T lymphocytes, natural killer (NK) and NK T cells, and their subsets, as well as their perforin expression levels were simultaneously detected and analysed by flow cytometry. There was a statistically significant decrease in the frequency of T lymphocytes, NK and NK T cells as well as perforin expression in the patients with simultaneous lower limb and thoracic injury compared with the other two groups, with a predominantly marked decrease in NK and NK T cells. The decrease in the frequency and cytotoxic potential of peripheral blood lymphocytes is related to the severity of trauma injury, which can explain the underlying mechanism contributing to complication occurrence. © 2017 Elsevier Ltd. All rights reserved.
Find related publications in this database (using NLM MeSH Indexing): Adult -; Female -; Flow Cytometry -; Fractures, Bone - immunology; Fractures, Bone - physiopathology; Gene Expression Regulation -; Humans -; Immunity, Cellular - physiology; Killer Cells, Natural - immunology; Killer Cells, Natural - metabolism; Lower Extremity - injuries; Lymphocyte Subsets - immunology; Male -; Middle Aged -; Multiple Trauma - immunology; Multiple Trauma - physiopathology; Perforin - analysis; Perforin - metabolism; Systemic Inflammatory Response Syndrome - physiopathology; T-Lymphocytes - immunology; T-Lymphocytes - metabolism; Thoracic Injuries - immunology
Find related publications in this database (Keywords): lower limb fracture; thoracic injury; perforin T lymphocytes; NK cells; NK T cells