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Related Concept Videos

Animal Mitochondrial Genetics02:59

Animal Mitochondrial Genetics

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Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...
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The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
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DNA sequencing is a fundamental technique that is routinely used in the biological sciences. This method can be applied to a range of questions at different scales - from the sequencing of a cloned DNA fragment or the study of a mutation in a gene up to whole-genome sequencing. However, despite the widespread use of sequencing today, it was not until 1977 that Fredrick Sanger and his collaborators developed the chain-termination method to decode DNA sequences. It relies on the separation of a...
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Updated: May 6, 2026

Genotyping Single Nucleotide Polymorphisms in the Mitochondrial Genome by Pyrosequencing
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Next-generation sequencing for mitochondrial disorders.

C J Carroll1, V Brilhante, A Suomalainen

  • 1Research Programs Unit, Molecular Neurology, Biomedicum-Helsinki, University of Helsinki, Helsinki, Finland.

British Journal of Pharmacology
|October 22, 2013
PubMed
Summary
This summary is machine-generated.

Next-generation sequencing significantly improves genetic diagnosis for inherited mitochondrial diseases, enabling better patient cohort selection for developing effective treatments.

Keywords:
diagnosisexomemitochondriamitochondrial diseasenext-generation sequencing

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Area of Science:

  • Genetics
  • Mitochondrial Biology
  • Medical Diagnostics

Background:

  • Mitochondrial diseases are poorly understood, with many patients lacking molecular diagnoses.
  • Effective treatments for mitochondrial disorders are currently unavailable.
  • Disease heterogeneity complicates clinical trials and therapeutic development.

Purpose of the Study:

  • To review next-generation sequencing (NGS) strategies for diagnosing mitochondrial disorders.
  • To highlight the impact of NGS on identifying molecular causes of these diseases.
  • To discuss how genetic insights facilitate the development of targeted therapies.

Main Methods:

  • Review of studies utilizing next-generation sequencing for mitochondrial disease diagnosis.
  • Analysis of strategies and findings from genetic diagnostic approaches.
  • Examination of the link between molecular diagnosis and therapeutic development.

Main Results:

  • Next-generation sequencing is an effective method for the genetic diagnosis of inherited mitochondrial diseases.
  • NGS has improved the identification of molecular causes for a majority of patients.
  • Detailed genetic knowledge aids in forming homogenous patient cohorts for clinical trials.

Conclusions:

  • Next-generation sequencing is revolutionizing the genetic diagnosis of mitochondrial disorders.
  • Improved diagnostics pave the way for more effective and targeted therapeutic interventions.
  • The application of NGS accelerates the development of treatments for rare mitochondrial diseases.