Power Failure

Power Failure Does mitochondrial dysfunction lie at the heart of common, complex diseases like cancer and autism? Kevin Hand Mitochondria are tiny. A single human cell can contain hundreds to thousands of these potato-shaped organelles, depending on the tissue type. They power the biochemical reactions in our cells through the production of adenosine triphosphate (ATP). These oft-overlooked furnaces, not studied in earnest until the 19

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Mitochondria are tiny. A single human cell can contain hundreds to thousands of these potato-shaped organelles, depending on the tissue type. They power the biochemical reactions in our cells through the production of adenosine triphosphate (ATP).

These oft-overlooked furnaces, not studied in earnest until the 1970s, are now the subject of intense scrutiny for their potentially central role in common, complex diseases. They may be, scientists say, pivotal to the etiology of diseases such as cancer and Alzheimer’s, epidemics against which researchers and companies have spent billions of dollars but made arguably little progress.

Nuclei swap to stop disease?

Surprising mtDNA diversity

First fix for mitochondrial diseases

But not everyone agrees with the mitochondrial hypothesis. Complex diseases are simply that, some researchers argue—complex. While mitochondria are essential to human physiology, there has not been sufficient evidence to prove that mitochondrial dysfunction plays a causative role in complex diseases. When it ...

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