Enigmatic role of vagal network as a construction worker on thyroid gland creation by inspiration from neurohistology studies

Abstract

hardware and software development by way of vagal complex management. We wonder if thyroid architecture and functions areregulated by vagal nerve.Material and Methods: The animals were divided to three groups according to their T4 hormone levels which 1.89±0.10 µg/dl valueswas accepted as normal (G0; n=12); 2.13±0.19 µg/dl values was accepted as hyperfunctioned (GI; n=7) and 1.61±0.09 µg/dl values wasaccepted as hypofunctioned (GII; n=5). All of the thyroid glands, thyroidal branches of vagal nerves and brainstem section at the levelof motor nucleus of vagal nerves sections were stained with haematoxylin-eosin, GFAP and tunnel dye for histological examination.All microscopical Stereological evaluations were done to understand how vagal morphology effects thyroid tissue architectures andT4 levels. All of the thyroid glands, thyroidal branches of vagal nerves and vagal motor nucleus evaluated stereologically to recognisewhether some histomorphological variations thyroid follicles and volumes per cubic centimeter compared with thyroid hormonelevels statistically.Results: The mean neuron density of vagal nucleus (NDVN), axon density of thyroidal branches of vagal nerves(TBVN), TFV, and T4 levels were measured as G0;GI and GII consequtively: (312±91)x$10^6/mm^3$, 19.543±2.321/$mm^2$,1.89±0.10 µg/dl and (296±72)x$10^6mu m^3/cm^3$ in G0; (387±93)x$10^6/mm^3$, 22.576±2.864/$mm^2$, 2.13±0.19 µg/dl and (331±65)x$10^6mu m^3/cm^3$ in GI and (245±56)x$10^6/mm^3$, 12.432±1.234mm2, 2.13±0.19 µg/dl and (231±45)x$10^6mu m^3/cm^3$ in GII.Conclusion: It seems that decrased hormone levels due to ineffective/unadequate thyroid gland development results frominadequately developing vagal complex architecture.