IMetaOmics
Gut bacterium partly restores hormone levels in aging mice
Experiments in female mice also reported reversed cognitive decline and longer lifespan after researchers restored a bacterium that declined with ovarian failure.Experiments in female mice also reported reversed cognitive decline and longer lifespan after researchers restored a bacterium that declined with ovarian failure.

Mouse studyGut and microbiome
Who was studiedAged female mice, 10 months, against PBS-treated aged mice
What changedL. johnsonii raised estradiol and lowered follicle-stimulating hormone levels in aging female mice compared with PBS
The catchOnly 6 mice per group received the aging intervention
