Blood parasite infection causing inflammatory reactions and benign formations in human thyroid gland

Терлецкий, А. В.; Akhmerova, L. G.; Евтушенко, Е. В.

doi:10.15789/2220-7619-2019-1-155-161

Cited by 2 publications

(1 citation statement)

References 22 publications

(25 reference statements)

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“…Terletsky and L.G. Akhmerova for several years, deserves in-depth study, to determine its possible role in the genesis of many diseases that are currently considered somatic [37][38][39]. What contribution can babesia invasion make to the current pandemic of endogenous sepsis?…”

Section: Research Results and Discussionmentioning

confidence: 99%

Primary chronic septic endocarditis as an alternative to acute rheumatic fever - the obligate component of the multicomponent noncyclic pandemic of the 21st Century

Бушманова¹,

Supotnitskiy²,

Churin³

2020

J Cardiovasc Med Cardiol

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Section: Research Results and Discussionmentioning

confidence: 99%

Primary chronic septic endocarditis as an alternative to acute rheumatic fever - the obligate component of the multicomponent noncyclic pandemic of the 21st Century

Бушманова¹,

Supotnitskiy²,

Churin³

2020

J Cardiovasc Med Cardiol

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Malignant human thyroid neoplasms associated with blood parasitic (haemosporidian) infection

Terletsky¹,

Akhmerova

2023

Russian Journal of Infection and Immunity

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Investigation of archival cytological material obtained by cytologists during fine-needle aspiration biopsy in follicular, papillary, and medullary human thyroid cancers revealed haemosporidian (blood parasitic) infection. Haemosporidian infection was detected as exo- and intraerythrocytic stages of development in thyrocytes schizogony. The exoerythrocytic stage of development is represented as microschizonts in a thyroid needle biopsy specimen. Probably, blood parasitic infection is the common etiology for these pathologies. All biopsy material in medical laboratories was stained with RomanowskyGiemsa stain. To clarify the localization of nuclei (DNA) of thyrocytes and nuclei (DNA) of haemosporidian infection in cytological material following investigation of the entire set of smears, a selective series of original archival smears was stained (restained) with a Feulgen/Schiff reagent. Staining of smears with RomanowskyGiemsa stain is an adsorption method that enables re-use of the same smears for staining with a Feulgen/Schiff reagent where the fuchsin dye, after DNA hydrolysis by hydrochloric acid, is incorporated into DNA and stains it in redviolet (crimsonlilac) color. An intentionally unstained protoplasm of blood parasitic infection was present as a light band around erythrocyte nuclei. In follicular thyroid cancer, Feulgen staining of thyrocytes revealed nuclear DNA and parasitic DNA (haemosporidium nuclei) as point inclusions and rings and diffusely distributed in the thyrocyte cytoplasm. The thyrocyte cytoplasm and nuclei were vacuolated, with thyrocyte nuclei being deformed, flattened, and displaced to the cell periphery. The erythrocytes, which were initially stained with eosin (orange color), contained haemosporidian nuclei (DNA). In some cases, endoglobular inclusions in thyrocytes and erythrocytes were of the same size. In papillary thyroid cancer, we were able to localize the nuclear DNA of thyrocytes and the parasitic DNA as point inclusions and diffusely distributed in the thyrocyte cytoplasm. Two or more polymorphic nuclei may eccentrically occur in the hyperplastic cytoplasm. Haemosporidian microschizonts occurred circumnuclearly in thyrocytes and as an exoerythrocytic stage in the blood. The erythrocyte cytoplasm contained redviolet polymorphic haemosporidian nuclei (DNA). In medullary thyroid cancer, the hyperplastic cytoplasm of thyrocytes contained eccentrically located nuclei (DNA) of thyrocytes and small haemosporidian nuclei (DNA), which may occupy the whole thyrocyte. There were thyrocytes with vacuolated cytoplasm and pronounced nuclear polymorphism. The size of hyperplastic nuclei was several times larger than that of normal thyrocyte nuclei. The color of stained cytoplasmic and nuclear vacuoles of thyrocytes was less redviolet compared with that of surrounding tissues, which probably indicates the presence of parasitic DNA in them. The haemosporidian nuclear material in erythrocytes is represented by polymorphic nuclei, which may indicate the simultaneous presence of different pathogen species and/or generations in the blood. Intracellular parasitism of haemosporidian infection in thyrocytes (schizogony) associated with three thyroid cancers leads to pronounced cytoplasmic hyperplasia, cytoplasmic vacuolization, and nuclear vacuolization of the thyrocyte, followed by impaired secretory function. Multinucleated thyrocytes with incomplete cytokinesis appear. The absence of lytic death of the affected thyrocytes indicates that the contagium is able to control apoptosis and influence physiological functions of the cell. There is deformation of the nuclei, which leads to a decrease in their size, their flattening and displacement to the cell periphery, with high risk of DNA mutations and deletions in affected cells, reaching a neoplastic level.

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Blood parasite infection causing inflammatory reactions and benign formations in human thyroid gland

Cited by 2 publications

References 22 publications

Primary chronic septic endocarditis as an alternative to acute rheumatic fever - the obligate component of the multicomponent noncyclic pandemic of the 21st Century

Primary chronic septic endocarditis as an alternative to acute rheumatic fever - the obligate component of the multicomponent noncyclic pandemic of the 21st Century

Malignant human thyroid neoplasms associated with blood parasitic (haemosporidian) infection

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