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Related Concept Videos

The Parathyroid Glands00:59

The Parathyroid Glands

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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...
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Adrenal Gland Disorders01:27

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Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
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Bone Disorders01:29

Bone Disorders

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Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
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Hormones and Bone Tissue01:17

Hormones and Bone Tissue

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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...
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Skeleton and Calcium Homeostasis01:21

Skeleton and Calcium Homeostasis

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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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Major Hormones and Their Functions01:27

Major Hormones and Their Functions

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Hormones, the biochemical messengers produced by endocrine glands, are pivotal in regulating bodily functions and maintaining homeostasis. Each hormone's balance is crucial; imbalances can lead to significant physiological disruptions. Major hormones include oxytocin, cortisol, epinephrine, estrogen, testosterone, thyroxine, growth hormone, insulin, and glucagon.
Oxytocin, produced in the hypothalamus and released by the pituitary gland, plays a role in social bonding, childbirth, and...
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Related Experiment Video

Updated: Sep 30, 2025

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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Parathyroid Disorders.

Jarrett Sell1, Sarah Ramirez1, Michael Partin1

  • 1Penn State Health Hershey Medical Center, Hershey, PA, USA.

American Family Physician
|March 15, 2022
PubMed
Summary
This summary is machine-generated.

Parathyroid disorders, often found incidentally, involve abnormal calcium levels and parathyroid hormone regulation. Management strategies vary for primary, secondary, and hypoparathyroidism, with surgery indicated for symptomatic primary hyperparathyroidism.

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Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging
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Two Techniques to Create Hypoparathyroid Mice: Parathyroidectomy Using GFP Glands and Diphtheria-Toxin-Mediated Parathyroid Ablation
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Related Experiment Videos

Last Updated: Sep 30, 2025

Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy
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Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging
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Two Techniques to Create Hypoparathyroid Mice: Parathyroidectomy Using GFP Glands and Diphtheria-Toxin-Mediated Parathyroid Ablation
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Area of Science:

  • Endocrinology
  • Nephrology
  • Bone Metabolism

Background:

  • Parathyroid disorders are frequently detected incidentally through serum calcium level abnormalities.
  • Parathyroid hormone (PTH) regulates calcium, phosphate, and vitamin D, impacting bone resorption, renal clearance, and intestinal absorption.
  • Primary hyperparathyroidism is the most common cause of hypercalcemia, often requiring surgical intervention.

Purpose of the Study:

  • To review the diagnosis and management of parathyroid disorders.
  • To outline indications for parathyroidectomy in primary hyperparathyroidism.
  • To discuss the causes and management of secondary hyperparathyroidism and hypoparathyroidism.

Main Methods:

  • Review of literature on parathyroid disorders.
  • Analysis of diagnostic criteria and treatment guidelines.
  • Summarization of clinical presentations and management strategies.

Main Results:

  • Primary hyperparathyroidism management includes surgical indications like symptoms, age ≤50, elevated calcium, osteoporosis, reduced creatinine clearance, nephrolithiasis, and hypercalciuria.
  • Secondary hyperparathyroidism commonly arises from chronic kidney disease and vitamin D deficiency, managed with calcium, vitamin D, and phosphate reduction.
  • Hypoparathyroidism, often postsurgical, leads to hypocalcemia.

Conclusions:

  • Parathyroid disorders encompass primary and secondary hyperparathyroidism and hypoparathyroidism, each with distinct etiologies and management approaches.
  • Surgical intervention is a key treatment for primary hyperparathyroidism, while medical management addresses secondary forms.
  • Rare genetic syndromes and parathyroid cancer are associated findings in hyperparathyroidism.