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Related Concept Videos

Disorders of the Skeletal Muscle01:28

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The clinical conditions affecting the skeletal muscle tissue are broadly categorized as musculoskeletal and neuromuscular disorders.
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Phenylketonuria (PKU) is a protein metabolism disorder characterized by high blood levels of the amino acid phenylalanine. This results from a mutation in the gene responsible for phenylalanine hydroxylase, an enzyme that converts phenylalanine into tyrosine. When this enzyme is deficient, phenylalanine builds up in the blood, leading to symptoms such as vomiting, rashes, seizures, growth deficiency, and severe mental retardation. An early diagnosis and a diet restricting phenylalanine intake...
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A single mitochondrion is a bean-shaped organelle enclosed by a double-membrane system. The outer membrane of mitochondria is smooth and contains many porins - the integral membrane transporters. Porins enable free diffusion of ions and small uncharged molecules through the outer mitochondrial membrane but limit the transport of molecules larger than 5000 Daltons. Further, the outer mitochondrial membrane forms a unique structure called membrane contact sites with other subcellular organelles,...
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Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
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Related Experiment Video

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Phosphorus-31 Magnetic Resonance Spectroscopy: A Tool for Measuring In Vivo Mitochondrial Oxidative Phosphorylation Capacity in Human Skeletal Muscle
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The Eye on Mitochondrial Disorders.

Josef Finsterer1, Sinda Zarrouk-Mahjoub2, Alejandra Daruich3

  • 1Krankenanstalt Rudolfstiftung, Vienna, Austria fifigs1@yahoo.de.

Journal of Child Neurology
|August 16, 2015
PubMed
Summary
This summary is machine-generated.

Ophthalmologic issues are common in mitochondrial disorders but often missed. Early diagnosis of these eye conditions is crucial for effective treatment and better patient outcomes.

Keywords:
cataracteyemitochondrial diseasenerveophthalmologicopticptosisretinavision

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Area of Science:

  • Ophthalmology
  • Genetics
  • Neurology

Background:

  • Ophthalmologic manifestations are often overlooked in mitochondrial disorders.
  • These eye conditions can be primary or secondary to the disorder.
  • Mitochondrial disorders affect both syndromic and nonsyndromic patients.

Purpose of the Study:

  • To review the etiology, pathogenesis, diagnosis, and treatment of ophthalmologic manifestations in mitochondrial disorders.
  • To highlight the importance of recognizing these ocular symptoms.
  • To emphasize the need for early diagnosis and management.

Main Methods:

  • Literature review of publications on ophthalmologic involvement in mitochondrial disorders.
  • Medline database search using relevant keywords.

Main Results:

  • Common manifestations include ptosis, progressive external ophthalmoplegia, optic atrophy, retinopathy, and cataracts.
  • Less common findings involve nystagmus, cornea, ciliary body, intraocular pressure, and choroidal abnormalities.
  • The eye is frequently affected in various mitochondrial diseases.

Conclusions:

  • Early recognition and diagnosis of ophthalmologic manifestations are vital.
  • Symptomatic treatment can provide partial or complete beneficial effects.
  • Appropriate diagnosis ensures optimal management and outcomes for patients with mitochondrial disorders.