Journal of Advanced Research

Bile acid corrected abnormal fat-cell formation in human cells

Lab experiments in bone marrow cells from patients with postmenopausal osteoporosis also found reduced senescence, a state in which cells stop dividing.

Graphical abstract from Journal of Advanced Research
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Graphical abstract. Zeng et al.
Experiments in miceInterventions

In laboratory experiments, researchers exposed bone marrow stromal cells—cells that can develop into bone or fat cells—from patients with postmenopausal osteoporosis to hyodeoxycholic acid, a bile acid. Osteoporosis weakens bones; this form occurs after menopause. The researchers also compared blood bile acids in patients and healthy donors.

Hyodeoxycholic acid showed the largest reduction among bile acids that differed between the groups. Lower levels were linked to more senescence, a state in which cells stop dividing, and fat-cell formation. Adding the bile acid to patient-derived cells reduced senescence more at higher doses and corrected abnormal fat-cell formation. It activated signalling that promoted mitophagy, the removal of damaged mitochondria, the cells’ energy-producing structures. In mice whose ovaries had been removed, oral hyodeoxycholic acid reversed deterioration in bone structure.

Why it matters

Bone marrow cell senescence is implicated in osteoporosis after menopause. The work offers a basis for exploring non-hormonal approaches to this age-related condition.

Caveats

The supplementation experiments involved lab-grown cells and mice, not patients. The abstract did not report sample sizes, doses or treatment duration.