Nearly 50 years ago, Chase published a review of hair cycling in which he detailed hair growth in the mouse and integrated hair biology with the biology of his day. In this review we have used Chas...

/pdf/controls-of-hair-follicle-cycling-2h0o2ckdy0.pdf

Controls of hair follicle cycling.

/pdf/the-lipophilic-bullet-hits-the-targets-medicinal-chemistry-5f1wikoz3q.pdf

The Lipophilic Bullet Hits the Targets: Medicinal Chemistry of Adamantane Derivatives

https://www.jidonline.org/article/S0022-202X(15)30629-1/pdf

Variations of Hair Follicle Size and Distribution in Different Body Sites

Subcommittee Members: Dr. Alexander Nast, Berlin (Germany) Dr. Cristina Oprica, Stockholm (Sweden) Prof. Dr. Brigitte Dreno, Nantes (France) Mrs. Stefanie Rosumeck, Berlin (Germany) Dr. Vincenzo Bettoli, Ferrara (Italy) Prof. Dr. Berthold Rzany, Berlin (Germany) Prof. Dr. Klaus Degitz, Munich (Germany) Dr. Adel Sammain, Berlin (Germany) Mr. Ricardo Erdmann, Berlin (Germany) Dr. Thierry Simonart, Brussels (Belgium) Prof. Dr. Andrew Finlay, Cardiff (United Kingdom) Dr. Niels Kren Veien, Aalborg (Denmark) Prof. Dr. Ruta Ganceviciene, Vilnius (Lithuania) Dr. Maja Vurnek fivkovi , Zagreb (Croatia) Dr. Alison Layton, Harrogate (United Kingdom) Prof. Dr. Christos Zouboulis, Dessau (Germany) Dr. Jose Luis Lopez Estebaranz, Madrid (Spain) Prof. Dr. Falk Ochsendorf, Frankfurt (Germany) Prof. Dr. med. Harald Gollnick, Magdeburg (Germany)

https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1468-3083.2011.04374.x

European Evidence‐based (S3) Guidelines for the Treatment of Acne

Application of Retinol to Human Skin In Vivo Induces Epidermal Hyperplasia and Cellular Retinoid Binding Proteins Characteristic of Retinoic Acid but Without Measurable Retinoic Acid Levels or Irritation

CD 271, a naphthoic acid, is a powerful modulator of epidermal differentiation. This double-blind, randomized study compared the efficacy and safety of two concentrations (0.03% w/w and 0.1% w/w) of CD 271 alcoholic gel, with 0.025% w/w tretinoin gel in 72 male patients with acne vulgaris over a period of 12 weeks. Efficacy was measured by counting facial inflammatory and non-inflammatory lesions and by grading the severity of the acne at each visit. Skin tolerance was assessed with subjective symptoms, such as burning and pruritus, as well as clinical assessment of erythema, dryness and scaling on the treated areas. The alcoholic 0.1% CD 271 gel was as effective as 0.025% tretinoin gel in reducing total comedone counts (83% reduction for both products after 12 weeks' treatment). The reduction in the number of inflammatory lesions and the total number of acne lesions were significantly greater with 0.1% CD 271 gel than with tretinoin gel (69% and 79% for 0.1% CD 271, 50% and 73% for tretinoin gel, respectively, P less than 0.05). All three treatments were well tolerated and there were no changes in any major blood parameters. No CD 271 could be detected in blood plasma at the end of the study (detection limit = 1 ng/ml).

Efficacy and safety of CD 271 alcoholic gels in the topical treatment of acne vulgaris.

The growth of vellus hair and the secretion of sebum from vellus hair follicles were measured on the forehead, cheek, chest, shoulder and back of healthy men and women aged 15-30 years. Hair growth was assessed by computerized image-analysis of photographs and sebum excretion by the use of Sebutape followed by image analysis. The density of vellus hairs and the percentage of growing hairs were higher on the face than on the thorax (439 hairs/cm2 with 49% growing hairs on the forehead compared with 85 hairs/cm2 with 31.5% growing hairs on the back). The rate of growth ranged from 0.03 mm/day on the forehead to 0.13 mm/day on the back. The maximum length of vellus hair significantly decreased with age; otherwise hair growth was not affected by age or sex. Some variations in hair growth and sebum secretion were observed over a period of 3 months, but no consistent rhythms were detected. There was no obvious link between vellus hair growth and sebum excretion.

Physiology of the vellus hair follicle: hair growth and sebum excretion.

In this study we investigated the activity of the vellus hair follicle in acne. Hair growth and sebum excretion in vellus hair follicles were measured on the forehead and back of men, and on the forehead, cheek, and back of women with acne. Hair growth was assessed by computerized image analysis (phototrichogram), and sebum excretion by computer analysis using Sebutape. In patients with acne, marked differences were revealed when results were compared with recent data from healthy persons. In particular, the mean growth rate of vellus hairs was higher, whereas the percentage of anagen hairs was lower, and the duration of the anagen phase shorter in patients with acne than in healthy individuals. Hair growth and sebum excretion depended significantly (P 0.01), (ii) for vellus hair length (P < 0.05), and (iii) for the duration of the anagen phase (P < 0.01). The present study demonstrates that the activity of the vellus hair follicle is influenced by acne, and vice versa, and therefore its role in the aetiopathogenesis of acne should be reconsidered.

The vellus hair follicle in acne: hair growth and sebum excretion

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Efficacy and safety of CD 271 alcoholic gels in the topical treatment of acne vulgaris.

Physiology of the vellus hair follicle: hair growth and sebum excretion.

The vellus hair follicle in acne: hair growth and sebum excretion