Peculiarities of microstructure of the suprarenal glands of rabbits with different types of autonomic tone

Zakrevska, M. V.; Tybinka, A M

doi:10.15421/021962

Cited by 4 publications

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“…Despite a large number of studies, we have not found any data that would prove the effect of different tonus of the autonomic nervous system on the morphology of the thyroid gland of rabbits. At the same time, a similar effect was established on the structure of the adrenal gland (Zakrevska & Tybinka, 2019). Studying this issue was the aim of our research.…”

Section: Introductionmentioning

confidence: 65%

Histogical structure of the thyroid gland in rabbits with different types of autonomous tonus

Zakrevska¹,

Tybinka²

2020

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The research was aimed at investigating the influence of the aggregated tonus of sympathetic and parasympathetic centers on the rabbit’s thyroid gland morphology. For this purpose, the rabbit males (Oryctolagus cuniculus (Linnaeus, 1758)) of Blanc de Termond breed at the age of four months, passed an electrocardiographic and variation pulsometry study. According to the results, the animals were divided into three groups: rabbits with sympathicotonia (18 animals), rabbits with normotonia (5 animals) and rabbits with parasympathicotonia (3 animals). After euthanasia, the fragments of the thyroid gland were taken out, fixed in Bouin’s solution and embedded in paraffin blocks. Histological sections were prepared from the paraffin blocks and later stained with hematoxylin and eosin, as well as Gabu-Diban’s aldehyde fuchsin and Heidenhain’s azan. Morphometric study of follicles and cells of the gland was performed using these histopreparations. Based on the obtained data, the indices of gland activity were calculated, i.e. Brown index and the follicle-colloid index. At the same time, it was established that morphofunctional parameters of the thyroid gland depend on the typological features of the autonomous tonus. This is reflected in the thickness of the capsule, the amount of adipose tissue, the size and density of the follicles’ placement, the height of the thyrocytes and the ratio between the areas of their nuclei and the cytoplasm. Rabbits with parasympathicotonia account for the higher values of half (7 from 14) of the studied parameters, while their combination suggests the functional activity of the thyroid gland of the animals in this group is higher compared to the other groups of rabbits. Also, rabbits with parasympathicotonia have a larger body weight. For normotonic and sympatheticontic rabbits, the functional activity of the thyroid gland as well as the body weight is lower and approximately of the same intensity. The existence of correlation between the separate indicators was investigated, the character of which is also related to the type of the autonomous tonus.

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Section: Introductionmentioning

confidence: 65%

Histogical structure of the thyroid gland in rabbits with different types of autonomous tonus

Zakrevska¹,

Tybinka²

2020

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“…Надниркова залоза є периферичним органом ендокринної системи, гормони якої впливають на розвиток органів, на водний, білковий, жировий, вуглеводний і мінеральний обміни, стійкість організму до інфекцій, інтоксикації, низької та високої температур, стресфакторів тощо (Matos, 2008). Надниркова залоза хребетних тварин за морфологічними ознаками є найбільш варіабельною ендокринною залозою, яка вирізняється особливостями макро -і мікроскопічної будови (Moawad & Randa, 2017;Zakrevska & Tybinka, 2019;Kot & Prokopenko, 2020). Аналіз наукової літератури показав, що відомості про дослідження надниркової залози в історичному аспекті є поодинокими та охоплюють відносно короткі хронологічні періоди (Luppova & Fedotov, 2009;Rybakov, 2018).…”

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Study of adrenal morphology fromantiquity to the present day

et al. 2021

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The analysis of scientific literature shows that the study of adrenal morphology in humans and animals is an urgent problem of biology and medicine from ancient times to the present day. In the historical aspect, we can distinguish three stages of studying the adrenal gland that differ in the directions of research. The first stage corresponds to the research of scientists of the XVI–XVIII centuries (Bartolomeo Eustachio, Andreas Vesalius, Gabriele Folloppio, Girolamo Fabrici, Andriaan Spieghel, Johann Vesling, Giulia Casseria, Caspar Bauhin, Johann Grafenberg, Caspar Bartholin, Thomas Bartholin, Giulio Casserio, Antonio Molinetti, Jean Riolan, Thomas Wharton, Giovanni Lancisi, Jakob Winslow, Antony Valsalva, Albrecht Haller, Johann Meckel, Jean Senac, Armand Cassan). Their works is devoted to the study of topography, macroscopic structure and function of the adrenal gland. Studies of morphological scientists of the second stage (late XVIII – mid XX century) correspond to the study of the structure of the adrenal gland at the microscopic level. Scientists like Albert Kelliker, Johann Ecker, Thomas Addison, Gabriel Colin, Alfred Kohn and Jay Arnold used histological and histochemical research methods. Edward Schafer, George Oliver, Vladislav Szymonowicz, John Abel, Jokiti Takmine, Welter Cannon, Edward Kendall to the study of the features of adrenal hormone secretion. Scientific works of the mid-twentieth and early twenty-first centuries can be combined in the third stage of research on the morphology of the adrenal gland. It is devoted to solving issues related to the formation of the adrenal gland in the process of filogenesis and ontogenesis, the features of the structure and function of the organ in normal and pathological conditions. A significant contribution to the study of the morphology of the adrenal gland of animals at the third stage was made by such scientists as Ziyade A. M., Dardykina O. N., Harina V. V., Atagimov M. Z., Torguj P. M., Antipin I. A., Shishkin A. P., Volkova M. V., Shevchenko L. F., Sidorova O. G., Vovchenko M. B., Salekh M. M., Ovcharenko N. D., Zaika S. V., Samatova I. M., Gorbacheva E. S., Pronin V. V., Kuznecov A. V., Pashinin N. S., Strel’nikova I. G., Barvenko A. D., Fedotov D. N., Izatulin A. V., Kvarackheliya A. G., Silkina A. V., Muhametov A. I. Among the studies of morphologists of the third period, the method of electron microscopy prevails.

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“…Фундаментальною і прикладною проблемою сучасної біології, гуманної та ветеринарної медицини є дослідження закономірностей розвитку, будови та функціонування органів ендокринної системи, оскільки остання разом з нервовою системою регулює та контролює всі процеси життєдіяльності організму (Parker et al, 2011;Zakrevska & Tybinka, 2019).…”

Section: вступunclassified

“…За морфологічними ознаками надниркова залоза є однією з найбільш варіабельних ендокринних залоз хребетних тварин (Barszcz et al, 2016;Zakrevska & Tybinka, 2019). Для птахів характерне видове різноманіття форми надниркової залози і ряд особливостей будови її паренхіми (Kober et al, 2012;Moawad & Randa, 2017).…”

Section: вступunclassified

“…За результатами (Kober et al, 2012;Moawad & Randa, 2017;Sarkar et al, 2014), паренхіма надниркової залози птахів сформована кірковою і мозковою речовинами, які на відміну від ссавців виявляються у периферичній та центральній зонах органа. Ми вважаємо, що кіркова речовина повинна знаходитись на периферії органа, а мозкова -у центрі, так як описано у ссавців (Zakrevska & Tybinka, 2019). Проте за результатами наших досліджень, тяжі кіркової речовини знаходяться як у периферичній, так і центральній зонах надниркової залози, тому пропонуємо називати кіркову речовинуінтерреналова, мозкову -супрареналова тканини, які, як відомо, відрізняються за походженням, функцією та будовою (Matos, 2008).…”

Section: результати досліджень та обговоренняunclassified

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Peculiarities of the Morphology of the Adrenal Glands of Chickens

Кот¹,

Prokopenko²

2020

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Knowledge of the laws of development, structure and functions of the adrenal glands of birds is an urgent problem of veterinary medicine. Its solution is practical importance for assessing the morpho-functional state of birds of a certain species and age, which is important for the scientific justification of technologies for growing them and studying the mechanisms of development of adrenal diseases. The aim of the work was to study the features of the adrenal morphology of cross-Hysex brown chickens at the age of 210 days using anatomical, histological, morphometric and statistical methods. It is established that the adrenal glands of chickens are paired parenchymal organs that have a pale yellow color, a loose consistency, a rounded (right adrenal gland) or pyramidal (left adrenal gland) shape. The right and left adrenal glands are located on the ventral surface of the cranial lobe, respectively, of the right and left kidneys, just before the bifurcation of the caudal vena cava. The outside of the adrenal glands of chickens is covered with a capsule with a thickness of 20.12±1.41 microns. It is formed by loose fibrous connective tissue, in which blood vessels and congestion sells of nervous system are registered. The adrenal parenchyma of chickens is represented by interrenal and suprarenal tissues, whose cells form strands intertwining with each other. Places between the visible layer of loose fibrous binder with sinusoidal capillars and venous sinus. On a sagittal section of the adrenal glands of chickens, you can distinguish the peripheral and сentral zones. The relative area of the suprarenal tissue, and sinusoid capillars with venous sinus of central zone (47.86±2.83 and 4.05±0.12 %, respectively), as compared to those with peripheral zone (of 27.02±2.64 and 1.12±0.47 %, respectively), more (P<0.001) 1.77 and 3.62 times, respectively, and the relative area of interregnal tissue, on the contrary, less (P<0.001) is 1.49 times (48.09±2.03 against 71.87±3.62 %). To study the intensity of protein, carbohydrate and lipid metabolism in the adrenal glands of chickens, it is planned to conduct his to chemical studies to identify and localize basic and acidic proteins, glycogen, neutral glycol proteins, and total lipids.

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Peculiarities of microstructure of the suprarenal glands of rabbits with different types of autonomic tone

Cited by 4 publications

References 47 publications

Histogical structure of the thyroid gland in rabbits with different types of autonomous tonus

Histogical structure of the thyroid gland in rabbits with different types of autonomous tonus

Study of adrenal morphology fromantiquity to the present day

Peculiarities of the Morphology of the Adrenal Glands of Chickens

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