Female rats under standard, natural, or constant illumination
How the study was set up
Female rats were followed under standard, regional natural, or continuous lighting, with Epitalon comparisons.
What the researchers measured
Lifespan and development of spontaneous tumors were recorded.
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
Lifespan did not change under the standard day/night regimen; some late-survival outcomes changed under other lighting conditions. The environmental dependence limits broad longevity conclusions.
What this does not establish
Benefits were conditional on the model and lighting environment, rather than a general demonstration of lifespan extension.
Publication & source
Why this paper is included
A female-rat lifespan and tumor experiment tested Ala-Glu-Asp-Gly, explicitly identified as Epithalon.
Publication indexing
Journal Article · Research Support, Non-U.S. Gov't