References: Hair growth and hair loss
Arch Dermatol. 1986 Sep;122(9):1011-5.
Female androgenic alopecia. The 3 alpha,17 beta-androstanediol glucuronide/sex hormone binding globulin ratio as a possible marker for female pattern baldness.
De Villez RL, Dunn J.
Twenty-five women fulfilling the criteria for female alopecia, of either the male pattern baldness type or female pattern baldness type, were evaluated for hormone markers to delineate the clinical baldness patterns. Women with a marked increase in the 3 alpha,17 beta-androstanediol glucuronide/sex hormone binding globulin ratio and low serum sex hormone binding globulin were noted to have female pattern baldness. This pattern of baldness may represent hair loss from the influence of minimal androgen excess on genetically sensitive hair bulbs in the absence of other signs of maximal androgen excess, including hirsutism, acne, or virilism.
online pharmacy ref. source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=2943232&dopt=Abstract
Plast Reconstr Surg. 1999 Apr;103(4):1139-42.
Outcome of scalp donor sites in 450 consecutive pediatric burn patients.
Barret JP, Dziewulski P, Wolf SE, Desai MH, Herndon DN.
Shriners Hospital for Children and the University of Texas Medical Branch, Galveston 77550, USA.
The scalp is a useful and reliable donor site in pediatric burn patients that can be multiply harvested with minimal morbidity. Healing complications, however, may include alopecia and chronic folliculitis. To investigate scalp donor-site morbidity, a consecutive series of 2478 pediatric burn patients treated over a 10-year period were reviewed. A total of 450 of these patients had scalp donor sites for wound closure. Percent of total body surface area burned was 46+/-23 percent (mean+/-standard deviation), and the mean number of sequential scalp donor-site harvests was 2.2+/-2 (range, 1 to 10) with mean intervals between harvesting of 6+/-0.6 days. Ten patients (2.2 percent) had related complications. Eight patients developed scalp folliculitis, with Staphylococcus sp as the predominant organism (80 percent). Two patients were managed successfully with wound care alone; the other six patients required surgical debridement and split-thickness skin grafting to achieve wound healing. These eight patients developed varying degrees of alopecia. Two patients developed alopecia without previous folliculitis. Six patients required reconstructive surgery, which consisted of primary closure (3), staged excision (1), and tissue expansion (2). A number of variables were examined to determine any differences in the group that had complications compared with the group of patients that did not. No differences in age, sex, race, burn type, burn size, septic episodes, time to wound closure, or number of times the scalp was harvested were detected. Healed second-degree burns to the scalp that were subsequently taken as donor sites seemed to be a risk factor (p < 0.05) for folliculitis and alopecia. Our study confirms that scalp donor sites are reliable with low morbidity. Complications include alopecia and chronic folliculitis that can be avoided by meticulous technique and avoidance of previously burned areas.
online pharmacy ref. source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=10088498&dopt=Abstract
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The purpose of this study was to test the ability of topical formulations of finasteride and flutamide to re-enlarge hair follicles in male-pattern baldness. This was evaluated by an experimental model of human scalp skin graft transplanted onto SCID mice. A comparison was made between formulations containing finasteride and flutamide, and a vehicle formulation in terms of the mean hairs per graft, length, diameter of the shafts, and structures of the growth stages of the hair. Flutamide and finasteride had a significantly higher effect (P<0.05) than the placebo in all the tested parameters, but flutamide demonstrated more hair per graft and longer hair shafts than finasteride (P<0.05). The number of hairs per graft for flutamide and finasteride groups were 1.22+/-0. 47 and 0.88+/-0.95 hairs/0.5 mm2 graft, respectively, versus 0. 35+/-0.6 hairs/graft for vehicle-treated graft. Similarly, hair lengths for flutamide and finasteride were 5.82+/-0.50 and 4.50+/-0. 32 mm, respectively, versus 2.83+/-0.18 mm for the vehicle-treated grafts. An in vitro diffusion study of flutamide gel using hairless mouse skin demonstrated the beneficial effect of the vehicle composition in comparison with a hydroalcoholic solution or a gel containing no penetration enhancer. It is therefore suggested that this topical composition containing flutamide or finasteride may effectively result in regression of male-pattern baldness.
online pharmacy ref. source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=10601691&dopt=Abstract
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