Humanin

What the research on Humanin has looked at

• Humanin and brain cells in a dish: cells carrying genes from an inherited protein-aggregation disorder, and cells exposed to an amyloid protein, stayed alive when the peptide was present, though cells dying from two other causes were not helped.
• Humanin and a cell-death protein: it stuck to a protein called BAX and stopped it moving out of the body of the cell and into the mitochondria.
• Humanin and how it is received: brain cells only responded to it when three particular proteins were present on their surface, and the peptide pulled those three together.
• Humanin and blood sugar handling in rats: a slow infusion into the brain improved how well the animals responded to insulin, working through a signal in the hypothalamus.
• Humanin and age: the amount found in rat brain and muscle fell as the animals got older, and the amount circulating in blood fell with age in both mice and people.