Abstract
Environmental and climatic factors have a significant impact on the immune system, shaping its composition and functions. The semiarid region of Aleppo, characterized by hot, dry summers and moderate, wet and cold winters, is also characterized by environmental pollution such as air pollutants and industrial chemicals. The interaction of these environmental and climatic factors can impair immune function by causing inflammatory responses, compromising the integrity of immune cells, and impairing the body’s ability to mount an effective immune response. To date, the physiological characteristics of the parameters of the human blood system and the development of physiological reactions of adaptive immune homeostasis depending on the territory of residence have not been sufficiently studied. In this work, we studied the state of immune indices in women living in the semi-arid region. Thirty women aged from 20 to 60 years without chronic and acute diseases were examined. Immunocompetence was assessed using white blood cell count, lymphocyte subset analysis and calculation of immune indices including neutrophil to lymphocyte ratio (NLR), lymphocyte to monocyte ratio (LMR), systemic inflammatory response index (SIRI), immunoregulatory index (CD4+/ CD8+) and lymphoproliferation ratio and apoptosis (CD10+/CD95+ and CD71+/CD95+). The results of the analysis showed that the median NLR was 2.18 (1.50-2.90), LMR 6.66 (5.47-8.87), SIRI 0.64 (0.45-0.98), immunoregulatory index 0.99 (0.84-1.27) and the ratio of lymphoproliferation processes to apoptosis (CD10+/ CD95+ and CD71+/CD95+) 0.95 (0.65-1.29) and 0.94 (0.78-1.11), respectively, which indicates a stressful state of immune homeostasis and signs of premature aging of the immune system. Neutrophil-lymphocyte ratio (NLR), lymphocyte-monocyte ratio (LMR), systemic inflammatory response index (SIRI), immunoregulatory index (CD4+/CD8+) and lymphoproliferation-apoptosis ratio were determined. (CD10+/ CD95+ and CD71+/ CD95+) in the examined women of the semiarid climate zone of residence, emphasizes the stressful level of immune homeostasis. The results obtained highlight the need for systematic individual biomedical monitoring to maintain immune homeostasis in populations inhabiting similar environmental conditions.
Published Version
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