Hair Transplant

Kite, Amy; Lucas, Valentina

doi:10.1097/psn.0000000000000094

Cited by 10 publications

(3 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Clinically, a significant portion of patients display a 1-to 3-month lag time for hair regrowth after hair transplantation, and follicles re-enter anagen six months later after hair transplantation to satisfactorily restore hair [30,31]. Similarly, we show that intact follicles enter dystrophic catagen 5 days after transplantation.…”

Section: Discussionsupporting

confidence: 51%

Sympathetic Reinnervation of Intact and Upper Follicle Xenografts into BALB/c-nu/nu Mice

Chen,

Ni,

Xie

et al. 2023

Life

View full text Add to dashboard Cite

Increasing concerns about hair loss affect people’s quality of life. Recent studies have found that sympathetic nerves play a positive role in regulating hair follicle stem cell activity to promote hair growth. However, no study has investigated sympathetic innervation of transplanted follicles. Rat vibrissa follicles were extracted and implanted under the dorsal skin of BALB/c-nu/nu mice using one of two types of follicles: (1) intact follicles, where transplants included bulbs, and (2) upper follicles, where transplants excluded bulbs. Follicular samples were collected for hematoxylin and eosin staining, immunofluorescence staining for tyrosine hydroxylase (TH, a sympathetic marker) and enzyme-linked immunosorbent assays. At 37 days after implantation in both groups, follicles had entered anagen, with the growth of long hair shafts; tyrosine-hydroxylase-positive nerves were innervating follicles (1.45-fold); and norepinephrine concentrations (2.03-fold) were significantly increased compared to 5 days, but did not return to normal. We demonstrate the survival of intact and upper follicle xenografts and the partial restoration of sympathetic reinnervations of both transplanted follicles.

show abstract

Section: Discussionsupporting

confidence: 51%

Sympathetic Reinnervation of Intact and Upper Follicle Xenografts into BALB/c-nu/nu Mice

Chen,

Ni,

Xie

et al. 2023

Life

View full text Add to dashboard Cite

show abstract

“…Forehead height from the trichion to the glabella has been reported as 6–7 cm in the average woman and 7–8 cm in the average man. 4 , 11 In a study comparing multiracial celebrities to anonymous volunteers, forehead height was found to be 7.64 cm in attractive women compared with 7.23 cm in average women, whereas attractive men had an average forehead height of 7.12 cm compared with 6.87 cm in average men. 9 The values were significantly different between attractive men and women and between the average men and women.…”

Section: Discussionmentioning

confidence: 99%

“…[1][2][3] Classically, men have an M-hairline shape with varying degrees of frontotemporal recession. 4,5 Although previously thought to be mostly round, the female hairline is distinct from men and has been shown to be more complex; 81% of women have a widow's peak, 98% have lateral temporal mounds, and 64% have cowlicks. The male forehead exhibits a more prominent glabella and supraorbital rim, whereas the female forehead has a smoother contour with more subtle bony landmarks.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Hairline and Forehead Sexual Dimorphic Aesthetics in 60 Celebrities Using Artificial Intelligence

Salinas

Liu

Sharaf

2023

Plastic and Reconstructive Surgery - Global Open

View full text Add to dashboard Cite

Background: Upper facial third morphometrics are an important consideration in aesthetic facial surgery and facial gender-affirming surgery. Although there are generally accepted sexual dimorphic differences, an in-depth analysis of forehead morphometrics in attractive individuals is lacking. Methods: Thirty white female and 30 white male celebrities were included. Three full-face front-view photographs of each celebrity were evaluated by a facial analysis program, using Vision framework and MATLAB. After converting pixel distances to absolute distances, midline and lateral forehead heights were calculated and compared between men and women. Results: Forehead height was similar between attractive men and women, but forehead width was shorter in women. Analysis of forehead height at various points along the hairline demonstrated that forehead measurements above the lateral brow and brow peak were significantly greater in men. Mean forehead height above the lateral eyebrow was 3.51 cm in women and 4.16 cm in men (P = 0.017). Forehead height above the eyebrow peak was 4.34 cm in women and 5.55 cm in men (P < 0.001). Medial forehead height was similar between men and women, indicating that the greatest difference in attractive male and female foreheads is in the lateral forehead and forehead width. Conclusions: Analysis of attractive white celebrities demonstrated no significant differences in central forehead heights between men and women. Forehead width and lateral forehead height were significantly smaller in women, with an overall downward slanting contour. Male hairlines were more horizontal and slanting upward laterally. These results have implications in facial rejuvenation and facial gender-affirming surgery.

show abstract