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This study describes how arrector pili muscles form a single muscular structure shared by all hair follicles within a follicular unit at the isthmus level in scalp skin.

This study concluded that microsurgical reconstruction is a reliable method to achieve stable coverage of large, complex scalp defects, although cancer control rates were poor.

This article discusses a combined strip and follicular unit extraction method along with an intraoperative calculation model to reduce over-extraction and wastage in hair transplantation and reports no new clinical results.

This study introduces the PRECISE scale, a quantitative tool to classify androgenetic alopecia, aiming to improve planning and outcomes for hair transplantation surgeries by evaluating the whole hairless and thinning areas.

This study found that hair transplantation using follicular unit extraction can yield natural and aesthetically pleasing results in advanced grade baldness, with a majority of patients expressing satisfaction at 12 months.

This study found that scalp necrosis in hair restoration procedures primarily occurs in the central region, particularly on the right parietal aspect, and proposed a method to prevent this complication.

In this study, sequential strip harvest during follicular unit transplantation yielded more grafts, significantly improving the recipient area's appearance and minimizing donor area scars, compared to traditional methods.

Hair follicles form hard α-keratin filaments in four steps, showing structural differences.

This article explains the FUE technique for hair transplantation, its associated risks and complications, and outlines a protocol for maxillofacial surgeons, but reports no new clinical results.

This study found that in skin blister healing, hair follicle development is compromised as stem cells repair wounds at the expense of morphogenesis gene expression.

This article discusses aspects of evaluating patients with androgenetic alopecia for hair transplantation and reports no clinical results.

This study describes a novel FUE device that may perform successfully across various patient scenarios, adapting to differences in skin firmness, thickness, and hair curliness.

The authors concluded that total hairline correction, which addresses multiple areas beyond the frontotemporal recess, is more effective in improving aesthetic facial balance for women with M-shaped or rectangular hairlines.

This study found that follicular unit extraction for Asian female hairline surgery produced satisfactory aesthetic results without leaving a linear scar, contrary to some surgeons' beliefs about its limitations.

This study found that long-hair follicular unit excision for hairline restoration resulted in high patient satisfaction, with a 93% graft survival rate and improved quality of life scores postoperatively.

In this retrospective analysis, researchers evaluated 54 patients undergoing soft tissue reconstruction for scalp and forehead defects and reported excellent aesthetic outcomes with local flaps for defects up to 50 cm², while larger defects typically required additional skin grafting.

This article discusses the development of a standardized assessment scale for hair transplant outcomes, emphasizing multiple parameters that contribute to an aesthetically pleasing result and reports no new clinical findings.

This study found that persistent activation of Wnt signaling in mouse models leads to cyst formation in hair follicles, resembling acne, and that these cysts can be partially reduced by certain acne treatments.

This source reviews the latest developments in hair transplantation for androgenetic alopecia, suggesting that while medical therapy alone remains unsatisfactory, surgical hair restoration is shown to be highly gratifying for male pattern hair loss.

This study identified collagen XXII as a novel extracellular matrix protein specifically present at tissue junctions, where it functions as a cell adhesion ligand for skin epithelial cells and fibroblasts.

This article discusses various issues and controversies in hair transplantation, including ethical considerations, the debate between follicular unit transplantation and excision, the concept of a safe donor area, the use of platelet-rich plasma, and the minimum qualifications needed for practitioners.

This article reviews the epidemiology of desmoplastic melanoma and reports no new clinical findings, emphasizing higher risks in chronically sun-exposed older males.

This article discusses the use of scalp stretching techniques to enhance donor hair supply for hair restoration, but it reports no new clinical findings.

This review discusses how functionalized hydrogels can modulate the microbiome to aid tissue regeneration and infection control, highlighting their potential to deliver therapeutic agents effectively and support beneficial immune responses.

This review discusses the use of beard hair as a donor source for hair transplantation in hirsute patients and highlights the lack of extensive studies on its efficacy and safety in East Asian populations.

Graft-versus-host disease is a complication where donor immune cells attack the recipient's body, often affecting the skin, liver, and gastrointestinal tract.

This study found that using a hair removal laser can effectively reduce hair thickness in the hairline of Asian women with thick donor hairs from previous hair transplants, improving hairline appearance with mild, transient side effects.

This study observed slight variations in follicular unit graft density among different Asian populations in the donor areas used for hair transplantation.

This report details a refined hair transplantation method called direct no-shave follicular unit excision (DNS FUE), which avoids donor-site shaving and minimizes follicular trauma while yielding high patient satisfaction.

In this NIH study, female donor to male recipient sex mismatch was significantly associated with the development of vitiligo and/or alopecia areata in patients with chronic graft-vs-host disease.