A comparative study of the thyroid gland development in the human male and female embryos and prefoetuses was carried out. The development of incretory part of the testicles was shown to occur earlier than the differentiation of follicles in the thyroid gland and the appearance of colloid in it. Sexual differences were noted in the appearance of follicles, connective tissue, nerve fibres in the thyroid gland (earlier in the male foetuses). The processes of organ differentiation in the male foetuses were more active than in the female ones during the whole prenatal period of development. A suggestion is put forward that the sexual hormones of embryonic testicles influence the thyroid gland differentiation.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Development of a Deep Learning Tool to Support the Assessment of Thyroid Follicular Cell Hypertrophy in the Rat.
Toxicol Pathol
January 2025
Charles River Laboratories, Edinburgh, UK.
Thyroid tissue is sensitive to the effects of endocrine disrupting substances, and this represents a significant health concern. Histopathological analysis of tissue sections of the rat thyroid gland remains the gold standard for the evaluation for agrochemical effects on the thyroid. However, there is a high degree of variability in the appearance of the rat thyroid gland, and toxicologic pathologists often struggle to decide on and consistently apply a threshold for recording low-grade thyroid follicular hypertrophy.
View Article and Find Full Text PDFNr4a1 and Nr4a3 redundantly control clonal deletion and contribute to an anergy-like transcriptome in auto-reactive thymocytes to impose tolerance in mice.
Nat Commun
January 2025
Division of Rheumatology, Rosalind Russell and Ephraim P. Engleman Arthritis Research Center, Department of Medicine, University of California, San Francisco, CA, 94143, USA.
The Nr4a nuclear hormone receptors are transcriptionally upregulated in response to antigen recognition by the T cell receptor (TCR) in the thymus and are implicated in clonal deletion, but the mechanisms by which they operate are not clear. Moreover, their role in central tolerance is obscured by redundancy among the Nr4a family members and by their reported functions in Treg generation and maintenance. Here we take advantage of competitive bone marrow chimeras and the OT-II/RIPmOVA model to show that Nr4a1 and Nr4a3 are essential for the upregulation of Bcl2l11/BIM and thymic clonal deletion by self-antigen.
View Article and Find Full Text PDFInvestigation of the effect of perioperative parathyroid autotransplantation in incidental parathyroidectomy cases on the development of postoperative hypocalcemia: a retrospective observational study.
Ann Surg Treat Res
January 2025
Department of General Surgery, Başkale State Hospital, Van, Türkiye.
Purpose: One of the most common and significant complications following thyroid surgery is postoperative hypocalcemia due to postoperative hypoparathyroidism. This study aimed to observe the effect of parathyroid gland autotransplantation on postoperative hypocalcemia in cases of incidental parathyroidectomy in total thyroidectomy cases.
Methods: Patients who underwent bilateral total thyroidectomy surgery were retrospectively analyzed.
Risk factors for increased drain output after endoscopic thyroidectomy via areola approach: a retrospective cohort study.
Gland Surg
December 2024
Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China.
Background: Endoscopic thyroidectomy (ET) offers superior cosmetic outcomes compared to traditional open thyroidectomy but is associated with higher postoperative drainage volumes (DV) and potential complications. Although ET via the areola approach (ETAA) has been used, the factors influencing DV after ETAA remain poorly understood. Therefore, this study aimed to identify clinical parameters that can objectively evaluate the factors influencing drainage volume after ETAA.
View Article and Find Full Text PDFPropensity analysis reveals survival disparities between T1a and T1b well-differentiated thyroid cancer based on surgery.
Gland Surg
December 2024
Division of Endocrine and Oncologic Surgery, Department of Surgery, School of Medicine, Tulane University, New Orleans, LA, USA.
Background: With rising well-differentiated thyroid cancer (WDTC) incidence, the appropriate treatment choice remains controversial for T1 tumors <2 cm. This study analyzed differences in surgery refusal and survival outcomes between T1a (<1 cm) and T1b (1-2 cm) WDTC, examining the demographic and clinical characteristics associated with patients who decide to either undergo or refuse recommended surgery.
Methods: We studied 81,664 T1N0M0 WDTC patients in the Surveillance, Epidemiology, and End Results (SEER) registry [2000-2019].
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!