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Adrenal Gland Disorders01:27

Adrenal Gland Disorders

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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.
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Lysosomes are the site for the degradation of macromolecules and biological polymers released during membrane trafficking events such as secretory, endocytic, autophagic, and phagocytic pathways. The membrane-enclosed area of the lysosome, called the lumen, contains hydrolytic enzymes active in an acidic environment. These acid hydrolases are functional at a pH between 4.5 and 5 and are involved in cellular processes such as cell signaling, energy metabolism, restoration of the plasma membrane,...
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Major Hormones and Their Functions01:27

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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.
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Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
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Nervonic acid and the long arc of therapeutic hope in X-linked adrenoleukodystrophy.

Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics·2026
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C26:0-lysophosphatidylcholine in X-linked adrenoleukodystrophy.

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Neuroradiological patterns and prognostic implications in type I Alexander disease.

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Normative modeling for quantitative brain MRI phenotyping and biomarker discovery for pediatric leukodystrophies.

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Diagnosis and Metabolic Management of Adult Refsum Disease: Guidance From the Medical and Scientific Committee of Global DARE (Defeat Adult Refsum Everywhere).

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Prognostic Value of Neurofilament Light Chain and Glial Fibrillary Acidic Protein in ALD-Related Myelopathy.

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Updated: Oct 28, 2025

An In Vitro Model for the Study of Cellular Pathophysiology in Globoid Cell Leukodystrophy
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Endocrine dysfunction in adrenoleukodystrophy.

Marc Engelen1, Stephan Kemp2, Florian Eichler3

  • 1Department of Pediatric Neurology, Emma Children's Hospital, and Amsterdam Leukodystrophy Center, Amsterdam University Medical Centers, Amsterdam, The Netherlands.

Handbook of Clinical Neurology
|July 16, 2021
PubMed
Summary
This summary is machine-generated.

X-linked adrenoleukodystrophy (ALD) is a genetic disorder affecting fatty acid metabolism. Treatments like hematopoietic cell transplantation can halt leukodystrophy, but myelopathy remains untreatable.

Keywords:
Adrenal failureGonadal insufficiencyLeukodystrophyMyelopathyPeripheral neuropathyPeroxisomal disordersSchilder's diseaseVLCFAVery long-chain fatty acidsX-linked adrenoleukodystrophy

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Area of Science:

  • Biochemistry
  • Genetics
  • Peroxisomal disorders

Background:

  • X-linked adrenoleukodystrophy (ALD) is a peroxisomal disorder resulting from ABCD1 gene mutations.
  • It impairs very long-chain fatty acid beta-oxidation, leading to neurological and adrenal dysfunction.

Purpose of the Study:

  • To provide a detailed discussion on the biochemistry, pathology, and clinical spectrum of ALD.
  • To highlight the current treatment limitations for ALD-associated myelopathy.

Main Methods:

  • Review of existing literature on ALD.
  • Analysis of clinical presentations and progression in male and female patients.
  • Evaluation of current therapeutic interventions.

Main Results:

  • ALD affects males primarily with adrenal failure and progressive myelopathy, variable in onset and progression.
  • Cerebral ALD affects 40% of males before age 18.
  • Females experience myelopathy later and slower; adrenal failure and leukodystrophy are rare.

Conclusions:

  • Allogeneic and autologous hematopoietic cell transplantation can halt leukodystrophy progression.
  • No curative treatment currently exists for the myelopathy associated with ALD.
  • Understanding ALD's multifaceted nature is crucial for patient management.