Morphological features of the rat’s thyroid gland after application of defect in the tibiae
- Authors: Morozov V.N.1
-
Affiliations:
- Belgorod State National Research University
- Issue: Vol 8, No 3 (2023)
- Pages: 154-158
- Section: Human Anatomy
- URL: https://journal-vniispk.ru/2500-1388/article/view/249942
- DOI: https://doi.org/10.35693/2500-1388-2023-8-3-154-158
- ID: 249942
Cite item
Full Text
Abstract
Aim – to study the morphological features of the rat’s thyroid gland after application of a defect in their tibiae.
Material and methods. Sixty white mature male rats were divided into two groups. Group I – intact animals, Group II – rats subjected to a through defect in the proximal metaphysis of the tibiae. The experiment time-line was: 3, 10, 15, 24, and 45 days. The qualitative features of the thyroid gland structure were studied using light and electron microscopy; the quantitative features – with histomorphometry.
Results. The large follicles lined with simple squamous epithelium on the periphery of the gland as well as large and medium-sized follicles lined with low simple cuboidal, less often squamous epithelium in the center were observed in rats of Group II on days 3, 10, 15 of the experiment. The colloid filled completely or most of the follicle; there were desquamated epitheliocytes and cells with signs of apoptosis. The height of the follicular epithelium of the thyroid gland was smaller than the values of the Group I by 8.44%, 5.52%, 3.86% and 5.53%, 3.70%, 3.25% from 3rd to 15th days; the area of nuclei of follicular cells – by 5.22%, 4.93% from 3rd to 10th days and by 5.31% on 3rd day; nucleo-cytoplasmic ratio – by 3.11%, 2.29%, 2.28% from 3rd to 15th days and by 4.63%, 3.01% from 3rd to 10th days in the central and peripheral parts of the gland respectively. On the 3rd day, electron-microscopically, thyrocytes were low cuboidal or flat shape, the nucleus had tortuous contours and accumulations of heterochromatin under the karyolemma and in the karyoplasm. The cisternae of the rough endoplasmic reticulum were collapsed or had small slit-like spaces. Single lysosomes and secretory granules in the apical part of the cells and short microvilli were visualized.
Conclusion. The application of a defect in the tibiae of rats is accompanied by morphological changes in the thyroid gland from the 3rd to 15th days and then organ adapts to the trauma by the 24th and 45th days.
Keywords
Full Text
##article.viewOnOriginalSite##About the authors
Vitalii N. Morozov
Belgorod State National Research University
Author for correspondence.
Email: morozov_v@bsu.edu.ru
ORCID iD: 0000-0002-1169-4285
PhD, Associate professor, Department of Human Anatomy and Histology
Russian Federation, BelgorodReferences
- Shchetinin SA. Analysis of the frequency and consequences of injuries in Russia. Modern Problems of Science and Education. 2015;2(1). (In Russ.). [Щетинин С.А. Анализ частоты и последствий травматизма в России. Современные проблемы науки и образования. 2015;2(1)]. URL: https://science-education.ru/ru/article/view?id=17871
- Fliers E, Bianco AC, Langouche L, et al. Thyroid function in critically ill patients. Lancet Diabetes Endocrinol. 2015;3(10):816-25. doi: 10.1016/S2213-8587(15)00225-9
- Preiser JC, Ichai C, Orban JC, et al. Metabolic response to the stress of critical illness. Br J Anaesth. 2014;113(6):945-54. doi: 10.1093/bja/aeu187
- Luzin VI, Ivchenko DV, Pankrat'ev AA. Method for modeling a bone defect in laboratory animals. Ukraїns'kij medichnij al'manah. 2005;8(2):162. (In Russ.). [Лузин В.И., Ивченко Д.В., Панкратьев А.А. Методика моделирования костного дефекта у лабораторных животных. Український медичний альманах. 2005;8(2):162].
- Gazizova AI. Comparative morphological and functional characteristics of the thyroid gland of the white laboratory rat, rabbit, dog. The scientific heritage. 2021;60-1(60):8-10. (In Russ.). [Газизова А.И. Сравнительная морфофункциональная характеристика щитовидной железы белой лабораторной крысы, кролика и собаки. The scientific heritage. 2021;60-1(60):8-10]. doi: 10.24412/9215-0365-2021-60-1-8-10
- Klimenkova IV, Kirpaneva EA. Features of the histoarchitectonics of the thyroid gland of laboratory rats. Actual problems of intensive development of animal husbandry. 2019;22-2:202-8. (In Russ.). [Клименкова И.В., Кирпанева Е.А. Особенности гистоархитектоники щитовидной железы лабораторных крыс. Актуальные проблемы интенсивного развития животноводства. 2019;22-2:202-8]. URL: https://cyberleninka.ru/article/n/osobennosti-gistoarhitektoniki-schitovidnoy-zhelezy-laboratornyh-krys
- Shapiro F. Bone development and its relation to fracture repair. The role of mesenchymal osteoblasts and surface osteoblasts. European Cells and Materials. 2008;15:53-76. doi: 10.22203/eCM.v015a05
- Riabenko ТV, Korenkov OV, Dmytruk SM, et al. Morphological features of tubular bones reparative regeneration under the influence of antitumor chemotherapeutics. Wiadomości Lekarskie. 2022;LXXV(3):570-76. doi: 10.36740/WLek202203102
- Sandukji A, Al-Sawaf H, Mohamadin A, et al. Oxidative stress and bone markers in plasma of patients with long-bone fixative surgery: Role of antioxidants. Human and Experimental Toxicology. 2010;30(6):435-42. doi: 10.1177/0960327110374203
- Molinaro C, Martoriati A, Cailliau K. Proteins from the DNA Damage Response: Regulation, Dysfunction, and Anticancer Strategies. Cancers. 2021;13:3819. doi: 10.3390/ cancers13153819
- Ajagallay S, Mane ShK, Singh G. Association of the serum-free T3 and T4 hormones in severe traumatic injury. Int Surg J. 2018;5(6):2195-98. doi: 10.18203/2349-2902.isj20182221
- Gibson SC, Hartman DA, Schenck JM. The Endocrine Response to Critical Illness: Update and Implications for Emergency Medicine. Emerg Med Clin N Am. 2005;23:909-29. doi: 10.1016/j.emc.2005.03.015.
- Kamilov FH, Ganeev TI, Kozlov VN, et al. Choice of method of application and dose of thiamazole for modeling hypothyroidism in laboratory rats. Biomedicina. 2018;1:59-70. (In Russ.). [Камилов Ф.Х., Ганеев Т.И., Козлов В.Н., и др. Выбор способа применения и дозы тиамазола для моделирования гипотиреоза у лабораторных крыс. Биомедицина. 2018;1:59-70].
- Miromanov AM, Gusev KA. Osteogenesis Hormonal Regulation: Review. Traumatology and Orthopedics of Russia. 2021;27(4):120-130. (In Russ.). [Мироманов А.М., Гусев К.А. Гормональная регуляция остеогенеза: обзор литературы. Травматология и ортопедия России. 2021;27(4):120-130]. doi: 10.21823/2311-2905-1609
- Mahmurov AM, Yuldasheva MA, Yuldashev AYu. Ultrastructure of cells of folliculi of the thyreoid gland in hypo-and hypercalciaemia. Bulletin of emergency medicine. 2019;12(2):55-60. (In Russ.). [Махмуров А.М., Юлдашева М.А., Юлдашев А.Ю. Ультраструктура клеток фолликулов щитовидной железы при гипо- и гиперкальциемии. Вестник экстренной медицины. 2019;12(2):55-60].
Supplementary files
