Blood leukocyte composition and neutrophil to lymphocyte ratio in patients with newly diagnosed type 2 diabetes mellitus depending on the degree of overweight/obesity
DOI:
https://doi.org/10.22141/2224-0721.16.7.2020.219006Keywords:
type 2 diabetes mellitus, immunity, inflammation, blood leukocyte compositionAbstract
Background. According to the current hypothesis, type 2 diabetes mellitus (T2DM) is chronic low-gradient inflammation. Almost 80 % of patients with type 2 diabetes are obese. However, such important biomarkers of inflammation as the leukocyte composition of the blood and the neutrophil-to-lymphocyte ratio (NLR) in patients with newly diagnosed type T2DM and varying degrees of obesity remain poorly understood. The purpose was to study the leukocyte composition and the index of inflammation NLR in non-hematological patients with newly diagnosed type 2 diabetes, depending on different body weights. Materials and methods. The study involved 108 patients with newly diagnosed T2DM aged 40–70 years and 50 normoglycemic individuals with different body mass index (BMI). The total number of blood leukocytes was determined using a hematological analyzer, and the leukocyte composition was determined both with an analyzer and in blood smears stained according to the Pappenheim staining method using a cacodylate buffer (Ph 6.85) per 200 identified cells. The index of inflammation NLR was calculated by dividing the absolute neutrophil count by the lymphocyte count. Results. Compared to healthy people, T2DM patients are characterized by a small but significant (p < 0.05) increase in the total number of leukocytes, the absolute number of neutrophils and monocytes, and the index of inflammation NLR. When dividing the entire group of T2DM patients and healthy individuals into four subgroups, depending on the body weight, it was found that leukocytosis, neutrophilia, monocytosis, and the NLR index in patients with T2DM correlated with the BMI value. At BMI ≤ 25.5 kg/m2, the number of leukocytes in T2DM patients compared with those in healthy individuals was increased by 11.5 %, neutrophils by 20.7 % (p = 0.007), monocytes by 11.1 %, and the NLR index by 19.4 %. With a BMI of 25.9–29.9 kg/m2, the number of leukocytes was increased by 19.2 %, neutrophils by 27.6 %, monocytes by 38.8 %, and the NLR index by 29.7 %. With a BMI of 30.0–34.9 kg/m2, the number of leukocytes was significantly increased by 48.1 %, neutrophils by 58.6 %, monocytes by 105 %, and the index NLR by 32.6 %; and with BMI > 35 kg/m2, leukocytes were increased by 67.3 %, neutrophils by 93 %, monocytes by 97 %, and the index of inflammation NLR by 54.9 %. In healthy individuals, similar changes were observed depending on the leukocyte composition and BMI but less pronounced. Conclusions. The level of leukocytosis, neutrophilia, monocytosis, and the index of inflammation NLR in T2DM patients also largely depends on their body weight, especially obesity. In obesity, the inflammatory process is intensified by summing factors specific to the pathogenesis of T2DM and overweight, this must be taken into account when choosing therapy in patients with type 2 diabetes mellitus, complicated by obesity.References
Downloads
Published
2020-10-01
Issue
Section
Original Researches
License
Copyright (c) 2020 O.V. Furmanova, K.P. Zak, V.V. Popova, M.D. Tronko

This work is licensed under a Creative Commons Attribution 4.0 International License.
Our edition uses the copyright terms of Creative Commons for open access journals.
Authors, who are published in this journal, agree with the following terms:
- The authors retain rights for authorship of their article and grant to the edition the right of first publication of the article on a Creative Commons Attribution 4.0 International License, which allows others to freely distribute the published article, with the obligatory reference to the authors of original works and original publication in this journal.
- Directing the article for the publication to the editorial board (publisher), the author agrees with transmitting of rights for the protection and using the article, including parts of the article, which are protected by the copyrights, such as the author’s photo, pictures, charts, tables, etc., including the reproduction in the media and the Internet; for distributing; for the translation of the manuscript in all languages; for export and import of the publications copies of the writers’ article to spread, bringing to the general information.
- The rights mentioned above authors transfer to the edition (publisher) for the unlimited period of validity and on the territory of all countries of the world.
- The authors guarantee that they have exclusive rights for using of the article, which they have sent to the edition (publisher). The edition (the publisher) is not responsible for the violation of given guarantees by the authors to the third parties.
- The authors have the right to conclude separate supplement agreements that relate to non-exclusive distribution of their article in the form in which it had been published in the journal (for example, to upload the work to the online storage of the journal or publish it as part of a monograph), provided that the reference to the first publication of the work in this journal is included.
- The policy of the journal permits and encourages the publication of the article in the Internet (in institutional repository or on a personal website) by the authors, because it contributes to productive scientific discussion and a positive effect on efficiency and dynamics of the citation of the article.