Nasolabial Transfer Flap with Auricular Cartilage Graft after Fat Grafting for Nasal Ala Reconstruction in Parry-Romberg Syndrome.

Background: Alar atrophy associated with Parry-Romberg syndrome (PRS) can lead to significant nasal contour deformities. The primary objective of this study was to address nasal alar deformities in PRS patients through the application of a nasolabial transfer flap combined with an auricular cartilage graft after sequential fat grafting.

Methods: All PRS patients with alar deformities who underwent our reconstructive surgery were included in this case series.

Insights into the molecular changes of adipocyte dedifferentiation and its future research opportunities.

Recent studies have challenged the traditional belief that mature fat cells are irreversibly differentiated and revealed they can dedifferentiate into fibroblast-like cells known as dedifferentiated fat (DFAT) cells. Resembling pluripotent stem cells, DFAT cells hold great potential as a cell source for stem cell therapy. However, there is limited understanding of the specific changes that occur following adipocyte dedifferentiation and the detailed regulation of this process.

Mechanical force regulates the paracrine functions of ADSCs to assist skin expansion in rats.

Background: In the repair of massive tissue defects using expanded large skin flaps, the incidence of complications increases with the size of the expanded area. Currently, stem cell therapy has limitations to solve this problem. We hypothesized that conditioned medium of adipose-derived stem cells (ADSC-CM) collected following mechanical pretreatment can assist skin expansion.