- Reaction score
- 214
It's still rats study but I think it's interesting.
Androgenetic alopecia (Androgenetic Alopecia) is highly prevalent in current society but lacks effective treatments. The dysregulation of the hair follicle niche induced by excessive reactive oxygen species (ROS) and insufficient vascularization in the perifollicular microenvironment is the leading cause of Androgenetic Alopecia. Herein, we designed a ceria nanozyme (CeNZ)-integrated microneedles patch (Ce-MNs) that can alleviate oxidative stress and promote angiogenesis simultaneously to reshape the perifollicular microenvironment for Androgenetic Alopecia treatment. On the basis of the excellent mechanical strength of Ce-MNs, the encapsulated CeNZs with catalase- and superoxide-mimic activities can be efficiently delivered into skin to scavenge excessive ROS. Moreover, the mechanical stimulation induced by the administration of MNs can remodel the microvasculature in the balding region. Compared with minoxidil, a widely used clinical drug for Androgenetic Alopecia treatment, Ce-MNs exhibited accelerated hair regeneration in the Androgenetic Alopecia mouse model at a lower administration frequency without inducing significant skin damage. Consequently, such a safe and perifollicular microenvironment-shaping MNs patch shows great potential for clinical Androgenetic Alopecia treatment.
Androgenetic alopecia (Androgenetic Alopecia) is highly prevalent in current society but lacks effective treatments. The dysregulation of the hair follicle niche induced by excessive reactive oxygen species (ROS) and insufficient vascularization in the perifollicular microenvironment is the leading cause of Androgenetic Alopecia. Herein, we designed a ceria nanozyme (CeNZ)-integrated microneedles patch (Ce-MNs) that can alleviate oxidative stress and promote angiogenesis simultaneously to reshape the perifollicular microenvironment for Androgenetic Alopecia treatment. On the basis of the excellent mechanical strength of Ce-MNs, the encapsulated CeNZs with catalase- and superoxide-mimic activities can be efficiently delivered into skin to scavenge excessive ROS. Moreover, the mechanical stimulation induced by the administration of MNs can remodel the microvasculature in the balding region. Compared with minoxidil, a widely used clinical drug for Androgenetic Alopecia treatment, Ce-MNs exhibited accelerated hair regeneration in the Androgenetic Alopecia mouse model at a lower administration frequency without inducing significant skin damage. Consequently, such a safe and perifollicular microenvironment-shaping MNs patch shows great potential for clinical Androgenetic Alopecia treatment.
