Peculiarities of immune profile in blood of rats with an acute general peritonitis on the background of hypothyroidism
DOI:
https://doi.org/10.11603/mcch.2410-681X.2017.v0.i4.8188Keywords:
widespread peritonitis, hypothyroidism, cellular immunity, humoral immunity.Abstract
Introduction. Peritonitis remains one of the most common complications of surgical diseases of the abdominal cavity [5, 11]. According to individual authors, in severe forms of disseminated purulent peritonitis, the mortality reaches 50–80 % [3, 13, 15]. All this points to the need for further improvement of the methods of diagnosis and treatment of this pathological process.
The aim of the study – establishment of features of the immune system cellular and humoral units functioning in rats with acute widespread peritonitis on the background of experimental hypothyroidism.
Materials and Methods. White Wistar rats were used in the work. Hypothyroidism was modeled by the administration of Mercazolil at a dose of 25 mg / kg for 21 days. Acute common peritonitis was modeled by injecting 0.5 ml of 10 % filtered fecal suspension into the abdominal cavity of the animals under study. Cellular (CD4+, CD8+, CD22+-lymphocyte) and humoral (IgA, IgM, IgG) immunity were measured. The animals were decapitated under thiopental anesthesia after 24 hours, on the 4th, 7th and 10th days from the beginning of peritonitis modeling.
Results and Discussion. It was found that in animals with acute widespread peritonitis against hypothyroidism, there is a significant decrease in CD4+ lymphocytes, a violation of the ratio of the main subpopulations of lymphocytes (CD4+ and CD8+), which is accompanied by a significant decrease in the immunoregulatory index. The dynamics of changes in B-lymphocytes CD22+, which are producers of immunoglobulins, was indicative. These changes correlated with the state of specific humoral immunity – the concentration of immunoglobulins in the serum of the corresponding groups of animals.
When simulating common peritonitis, euthyroid animals showed a decrease in IgG concentration and an increase in IgM and IgA. Against the background of hypothyroidism, we noted a decrease in the level of immunoglobulins of all classes after 24 hours of the duration of the pathological process with a further decrease to the tenth day. The indices of all classes of immunoglobulins were also significantly lower than those of euthyroid animals with acute widespread peritonitis.
Conclusions. In animals with acute common peritonitis, hypothyroidism is significantly reduced CD4+ lymphocytes, a violation of the ratio of the main subpopulations of lymphocytes (CD4+ and CD8+), which is accompanied by a significant decrease in the immunoregulatory index. The insufficiency of the cellular part of the immune response was found to reflect an increase in the mutual negative effect of the inflammatory process in the peritoneum and systemic disorders of immune defense in conditions of concomitant hypothyroidism. There is a direct relationship between the reduced level of CD22+ lymphocytes and the indices of immunoglobulins of classes A and G.
In acute widespread peritonitis against the background of mercazolil-induced hypothyroidism, there is a violation of the functionality of the immune system, manifested by an imbalance of immunoglobulins in the bloodstream and a decrease in the resistance of the humoral link of the immune system.
References
Bazhora, Yu.I., & Petrashevych, Yu.V. (2001) Mekhanizmy makromolekuliarnykh vzaiemodii u systemnomu homeostazi pry formuvanni pervynnoi imunnoi vidpovidi v eksperymenti [Mechanisms of macromolecular interactions in systemic homeostasis in the formation of the primary immune response in the experiment] Bukovynskyi medychnyi visnyk – Bukovyna Medical Journal, 5, 3, 162-167 [in Ukrainian].
Gordiyenko, A.I., Beloglazov, V.A. (2000) Mikroturbidimetricheskiy metod opredeleniya IgG, IgM, IgA cheloveka [Microturbidimetric method for determination of human IgG, IgM, IgA]. Imunologiya ta alergologiya – Immunology and Allergology, 1, 12-15. [in Russian].
Dziubanovskyi, I.Ya., & Mihenko, B.O. (2009) Syndrom poliorhannoi nedostatnosti ta yoho korektsiia u khvorykh na hostryi poshyrenyi perytonit [Organ failure syndrome and its correction in patients with acute peritonitis] Ukrainskyi Zhurnal Khirurhii – Ukrainian Journal of Surgery, 2, 56-59 [in Ukrainian].
Kazmirchuk, V.Ye., & Kovalchuk, L.V. (2006) Klinichna imunolohiia i alerholohiia [Clinical immunology and allergology]. Vinnytsia: Nova knyha. [in Ukrainian].
Katsal, V.A. (2007). Optymizatsiia prohramy kompleksnoho peredoperatsiinoho likuvannia khvorykh z poshyrenym hniinym perytonitom [Optimization of the program of complex preoperative treatment of patients with common purulent peritonitis]. Klinichna khirurhiia – Clinical Surgery, 10, 18-21 [in Ukrainian].
Kozhemiakin, Yu.M., Khromov, O.S., Filonenko, M.A., & Saifetdinova, H.A. (2002). Naukovo-praktychni rekomendatsii z utrymannia laboratornykh tvaryn ta roboty z nymy [Scientific and practical advice on keeping laboratory animals and work with them]. Kyiv: Avitsena [in Ukrainian].
Lazarenko, V.A., Lipatov, V.A., Blinkov, Yu.Yu., & Skorikov, D.V. (2008). Eksperimentalnaya model rasprostranennogo kalovogo peritonita [Experimental model of widespread fecal peritonitis]. Chelovek i yego zdorovye – Man and his Health, 4, 128-132 [in Russian].
Lapach, S.N., Chubenko, A.V., & Babich, P.N. (2000). Statisticheskiye metody v mediko-biologicheskikh issledovaniyakh s ispolzovaniyem Excel [Statistical methods in biomedical research using Excel]. Kyiv: Morion [in Russian].
Pankiv, V.I. (2012). Syndrom hipotyreozu [Hypothyroidism syndrome]. Mezhdunarodnyy endokrinologicheskiy zhurnal – International Endocrinology Journal, 5 (45), 136-148 [in Ukrainian].
Pasternak, I.I., Bodnar, B.M., & Bezrukov, L.O. (2000). Suchasna otsinka imunolohichnykh pokaznykiv u ditei z hostrym destruktyvnym apendytsytom, uskladnenym poshyrenymy formamy perytonitu [Modern assessment of immunological parameters in children with acute destructive appendicitis complicated by common forms of peritonitis]. Bukovynskyi medychnyi visnyk – Bukovyna Medical Journal, 4, 1-2, 85-87 [in Ukrainian].
Blot, S., & De Waele, J.J. (2005). Critical issues in the clinical management of complicated intraabdominal infections. Drugs, 65 (12), 1611-1620.
Isman, C.A., Yegen, B.C., & Alican, I. (2003). Methimazole-induced hypothyroidism in rats ameliorates oxidative injury in experimental colitis. J. Endocrinol., 177 (3), 471-476.
Maleckas, A., Daubaras, V., Vaitkus, V., & Aniuliene, A. (2004). Increased postoperative peritoneal adhe¬sion formation after the treatment of experimen¬tal peritonitis with chlorhexidine. Langenbeck's Arch. Surg, 389, 256-260.
Van Westreenen, M., Van den Tol, P.M., & Pronk, A. (1999). Perioperative lavage promotes intraperitoneal adhesion in the rat. Eur. Surg. Res., 31, 196-201.
Reed, M., Parbadia, K., & Cherian, J. (2012). Acute bacterial peritonitis in adults. US Pharm, 37 (12), 1-8.
