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The Parathyroid Glands00:59

The Parathyroid Glands

The two pairs of parathyroid glands embedded within the posterior surface of the thyroid gland are restricted by a dense capsule around them. These glands comprise two distinct cell populations—parathyroid oxyphil and parathyroid principal cells- pivotal in calcium homeostasis.
Oxyphil cells, whose functions remain elusive, emerge during late puberty, adding a layer of complexity to the parathyroid gland's intricacies. In contrast, principal parathyroid cells undertake a vital role by producing...
Hyperthyroidism II: Pathophysiology01:27

Hyperthyroidism II: Pathophysiology

Hyperthyroidism is a hypermetabolic state caused by elevated levels of thyroid hormones, triiodothyronine (T3) and thyroxine (T4). It results from dysregulation at the thyroid, pituitary, or immune system level and affects multiple organ systems.PathophysiologyThe most common cause of hyperthyroidism is Graves’ disease, an autoimmune disorder in which antibodies, specifically thyroid-stimulating antibodies (TSAb), a subtype of TSH receptor antibodies (TRAb), bind to and activate TSH receptors...
Hyperthyroidism I: Introduction01:25

Hyperthyroidism I: Introduction

Hyperthyroidism is a type of thyrotoxicosis characterized by the thyroid gland's overproduction of the thyroid hormones triiodothyronine (T3) and thyroxine (T4). This hormone excess increases the basal metabolic rate and enhances sensitivity to catecholamines.DiagnosisDiagnosis is based on clinical features and biochemical testing. It typically shows suppressed thyroid-stimulating hormone (TSH) levels below 0.4 mIU/L, with elevated free T3 and/or T4. Additional tests, including thyroid...
Hormones and Bone Tissue01:17

Hormones and Bone Tissue

The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
Graves Disease II: Pathophysiology01:24

Graves Disease II: Pathophysiology

Graves’ disease is an autoimmune disorder characterized by the production of thyroid-stimulating immunoglobulins (TSI) that activate TSH receptors, leading to excessive synthesis and release of thyroid hormones (T3 and T4) and resulting in hyperthyroidism.Among all causes of hyperthyroidism, Graves’ disease is the most common and can happen at any age, though it is more frequent in women. It produces a hypermetabolic state with features such as weight loss, tachycardia, tremor, and heat...
Skeleton and Calcium Homeostasis01:21

Skeleton and Calcium Homeostasis

Calcium is not only the most abundant mineral in bone but also the most abundant mineral in the human body. Calcium ions are needed for bone mineralization, tooth health, heart rate regulation and strength of contraction, blood coagulation, the contraction of smooth and skeletal muscle cells, and the regulation of nerve impulse conduction. The average calcium level in the blood is about 10 mg/dL. When the body cannot maintain this level, a person will experience hypo or hypercalcemia.

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Updated: Jun 21, 2026

Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging
07:12

Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging

Published on: August 17, 2022

El hiperparatiroidismo es el hiperparatiroidismo.

William D Fraser1

  • 1Unit of Clinical Chemistry, School of Clinical Sciences, University of Liverpool, Liverpool, UK. w.d.fraser@liverpool.ac.uk

Lancet (London, England)
|July 15, 2009
PubMed
Resumen
Este resumen es generado por máquina.

El hiperparatiroidismo involucra glándulas paratiroides hiperactivas, lo que lleva a desequilibrios hormonales. Los tratamientos van desde la cirugía para el hiperparatiroidismo primario hasta el manejo de la deficiencia de vitamina D y la enfermedad renal crónica en formas secundarias.

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Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy
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Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy

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Last Updated: Jun 21, 2026

Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging
07:12

Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging

Published on: August 17, 2022

Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy
03:57

Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy

Published on: July 14, 2023

Área de la Ciencia:

  • Endocrinología Endocrinología.
  • Nefrología Nefrología.
  • Enfermedad ósea metabólica.

Sus antecedentes:

  • El hiperparatiroidismo se deriva del aumento de la actividad de la hormona paratiroidea.
  • El hiperparatiroidismo primario es común, especialmente en mujeres posmenopáusicas.
  • El hiperparatiroidismo secundario a menudo está relacionado con la deficiencia de vitamina D o la enfermedad renal crónica.

Objetivo del estudio:

  • Revisar las causas y el manejo del hiperparatiroidismo primario y secundario.
  • Para resaltar las estrategias de tratamiento actuales y emergentes.
  • Para discutir las complejidades de la deficiencia de vitamina D y su papel.

Principales métodos:

  • Revisión de la literatura sobre las causas, el diagnóstico y el tratamiento del hiperparatiroidismo.
  • Análisis de las opciones actuales de manejo médico y quirúrgico.
  • Discusión de los desafíos en la definición y el tratamiento de la deficiencia de vitamina D.

Principales resultados:

  • El hiperparatiroidismo primario se puede tratar con cirugía (paratiroidectomía) o terapias médicas (bisfosfonatos, reemplazo hormonal, calcimiméticos).
  • La deficiencia de vitamina D es una causa frecuente de hiperparatiroidismo secundario, particularmente en las personas mayores.
  • El hiperparatiroidismo secundario en la enfermedad renal crónica contribuye a la enfermedad ósea renal, con la aparición de nuevos tratamientos.

Conclusiones:

  • El manejo del hiperparatiroidismo varía según el tipo y la gravedad.
  • La cirugía mínimamente invasiva se utiliza cada vez más para el hiperparatiroidismo primario.
  • Se necesita más investigación para un manejo óptimo de la deficiencia de vitamina D y para abordar la enfermedad ósea renal en la ERC.