Manipulation of Outer Root Sheath Cell Survival Perturbs the Hair-Growth Cycle

This study observed that repeated shaving and topical treatments, particularly TPA, stimulated hair regrowth in C3H mice, while certain treatments like betamethasone valerate completely inhibited it.

In this study, researchers found that bulge cells in mouse hair follicles undergo transient proliferation during early anagen, indicating their role as follicular stem cells. However, another factor beyond dermal papilla proximity may be required to initiate a new anagen phase.

This article describes the potential role of various growth factors and molecules in regulating mammalian hair follicle development but does not present new experimental results.

This article discusses the structure of hair follicles and their significance in evaluating hair disorders, but it does not report any new research findings.

This study reported that K14 expression patterns and keratin filament organization in human skin's hair follicles differ from those in the epidermis, indicating distinct differentiation programs.

Hair growth is cyclic and influenced mainly by local factors.

Artificially inducing hair regrowth in mice can change the normal pattern and timing of hair growth, with minimal color differences between old and new fur.