Male rats were followed to natural death under standard, regional natural, or permanent lighting, with Epitalon comparisons.
What the researchers measured
Mean lifespan, population mortality patterns, and spontaneous tumors were assessed.
How to read this evidence
Researchers studied cells, isolated tissue, or animals. These experiments can help explain a mechanism, but do not establish benefits or safety in people. Human cells grown in a laboratory also belong in this category.
Results in context
Mean lifespan was largely unchanged, despite changes in some mortality-pattern and tumor measures. A change in a population aging parameter is not equivalent to increased average lifespan.
What this does not establish
The unchanged mean lifespan and lighting-dependent model limit broad longevity claims; these results are not human evidence.
Publication & source
Why this paper is included
A male-rat aging experiment tested Ala-Glu-Asp-Gly, explicitly identified as Epithalone, under different lighting regimens.
Publication indexing
Evaluation Study · Journal Article · Research Support, Non-U.S. Gov't