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Int. J. Mol. Sci. 2015, 16(5), 10077-10094; doi:10.3390/ijms160510077

Peripheral Blood Lymphocyte Subsets (CD4+, CD8+ T Cells, NK Cells) in Patients with Cardiovascular and Neurological Complications after Carotid Endarterectomy

Department of Anaesthesia, Intensive Care and Acute Poisoning, Pomeranian Medical University, Teaching Hospital No. 2, 70-111 Szczecin, Poland
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Academic Editor: Michael Henein
Received: 15 February 2015 / Revised: 20 April 2015 / Accepted: 20 April 2015 / Published: 4 May 2015
(This article belongs to the Section Biochemistry, Molecular and Cellular Biology)
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Abstract

Background: The aim of the study was to evaluate the differences in the circulating immune cells’ subgroups after the atherosclerotic plaque removal in patients presenting with postoperative complications as compared to the patients without complications after carotid endarterectomy (CEA). Methods: Patients with significant carotid atherosclerosis (n = 124, age range: 44 to 87 years) who underwent CEA were enrolled in a prospective study. The immunology study using flow cytometry was performed to determine the percentages of peripheral blood T cells (CD4+, CD8+, Treg—CD4+/CD25+) and NK (natural killer) cells before and after the procedure. The data were expressed as the percentage of total lymphocytes ± the standard error of mean. Results: The mean percentage of lymphocytes (61.54% ± 17.50% vs. 71.82% ± 9.68%, p = 0.030) and CD4 T lymphocytes (T helper, 38.13% ± 13.78% vs. 48.39% ± 10.24%, p = 0.027) was significantly lower six hours after CEA in patients with postoperative 30-day cardiovascular and neurological complications as compared to the group without complications. On the other hand the mean NK level in the group with complications was significantly higher (21.61% ± 9.00% vs. 15.80% ± 9.31%, p = 0.048). Conclusions: The results of this study suggest that after carotid endarterectomy the percentages of circulating immune cells subsets differ in patients with and without postoperative complications. View Full-Text
Keywords: carotid endarterectomy; helper T lymphocytes (CD4+); cytotoxic T lymphocytes (CD8+); NK cells carotid endarterectomy; helper T lymphocytes (CD4+); cytotoxic T lymphocytes (CD8+); NK cells
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Kotfis, K.; Biernawska, J.; Zegan-Barańska, M.; Żukowski, M. Peripheral Blood Lymphocyte Subsets (CD4+, CD8+ T Cells, NK Cells) in Patients with Cardiovascular and Neurological Complications after Carotid Endarterectomy. Int. J. Mol. Sci. 2015, 16, 10077-10094.

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