Can metformin cause hair loss
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Can Metformin Cause Hair Loss?
Metformin is a widely used medication primarily prescribed for managing type 2 diabetes mellitus. Given its broad usage, understanding its side effects, including potential impacts on hair health, is crucial.
Metformin and Hair Regrowth
Interestingly, metformin has been observed to have a positive effect on hair regrowth in certain conditions. A study reported hair regrowth in two patients with recalcitrant central centrifugal cicatricial alopecia (CCCA) after the topical application of metformin. CCCA is a progressive scarring alopecia that predominantly affects women of African descent. The study highlighted that metformin, through the mediation of adenosine monophosphate-activated protein kinase (AMPK), improved fibrosis in a mouse model of fibroproliferative disorders (FPDs), which may explain its efficacy in promoting hair regrowth in these patients .
Metformin and Hair Cell Protection
Another study explored metformin's protective effects against gentamicin-induced hair cell death in vitro. Gentamicin is an antibiotic known to cause ototoxicity, leading to hair cell loss in the cochlea. The study found that metformin could block the gentamicin-induced translocation of endonuclease G into the nucleus of outer hair cells, thereby attenuating hair cell loss in organ culture. However, this protective effect was not observed in vivo, where metformin did not prevent gentamicin-induced auditory function loss and, at higher dosages, even aggravated the condition .
Conclusion
Current research does not indicate that metformin causes hair loss. On the contrary, it has shown potential benefits in promoting hair regrowth in specific alopecia conditions and protecting hair cells in vitro. However, more extensive in vivo studies are necessary to fully understand its effects and potential side effects related to hair health.
Sources and full results
Most relevant research papers on this topic
Hair regrowth in 2 patients with recalcitrant central centrifugal cicatricial alopecia after use of topical metformin
Topical metformin may promote hair regrowth in patients with central centrifugal cicatricial alopecia, potentially through the AMPK pathway.
Specific interpretation of hair concentrations in 2 fatal metformin intoxication cases.
Metformin hair concentrations in fatal cases were higher than previously reported, possibly due to excessive sweating during the agonal phase due to fatal hypoglycemia.
Development of a new GC-MS/MS method for the determination of metformin in human hair.
The developed GC-MS/MS method effectively determines metformin in human hair, providing valuable information for forensic toxicologists and clinical toxicologists.
Metformin Protects Auditory Hair Cells from Gentamicin-Induced Toxicity in vitro
Metformin protects auditory hair cells from gentamicin-induced apoptosis in vitro, suggesting a protective effect on auditory hair cell survival in gentamicin-induced hair cell loss.
Metformin Protects Against Noise-Induced Hearing Loss in Male Mice “Metformin Protects Against NIHL in Male Mice”
Metformin effectively protects male mice from noise-induced hearing loss, but not in female mice.
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