Striae distensae - like lesions. A cause of scarring alopecia among children.

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Saudi Med J 2002 Dec;23(12):1489-91

Striae distensae - like lesions. A cause of scarring alopecia among children.

OBJECTIVE: Although alopecia areata is a common problem among children, many misdiagnoses for this condition can happen. The aim of this study was to demonstrate the striae distensae as lesions that cause scarring alopecia with a great resemblance to alopecia areata. METHODS: A total of 36 children with provisional diagnosis of alopecia areata of the scalp were assessed clinically in the Department of Dermatology and Venereology, Baghdad Teaching Hospital, Baghdad, Iraq, between June 1998 to June 2001. Their age ranged from 3 12 years and the mean + standard deviation (SD) was 7.30 + 2.59 years with equal sex ratio. RESULTS: All patients provided for this study had a history of patchy hair loss of few months duration. Their parents denied any history of obvious trauma and many modalities of treatment had been tried without benefit. The clinical examination revealed single or multiple (1-6) (mean + SD 2.41 + 1.22) complete linear hair loss patches resembling atrophic scar that was similar to striae distensae. The histopathological examination showed atrophy of the epidermis, full replacement of the dermis by collagen bundles, and complete loss of appendages. CONCLUSION: This is a new entity, which seems to be common among children and often confused with untreated cases of alopecia areata. This condition should be added to the differential diagnosis of patchy hair loss in children and the parents should be reassured of the cause of hair loss and no treatment therapy needed.

Dermatol Surg 2002 Sep;28(9):795-8; discussion 798-9

Does the recipient site influence the hair growth characteristics in hair transplantation?

BACKGROUND: Recently hair transplantation has been widely applied not only to correct androgenetic alopecia, but also to correct hair loss on other parts of the body such as the eyebrows and pubic area. It is believed that the transplanted hairs will maintain their integrity and characteristics after transplantation to new nonscalp sites. OBJECTIVE: To evaluate whether the transplanted hairs maintain their hair growth characteristics after transplantation to a new anatomic site other than the scalp. METHODS: Three study designs were used. Study I: Hair transplantation from the author's occipital scalp to his lower leg was performed and clinical evaluations were made at both 6 months and at 3 years after the transplantation. Study II: After finding changes in hair growth characteristics, transplanted hairs were harvested from the leg and retransplanted to the left side of the nape of the neck (group A). As a control study, occipital hairs were transplanted to the opposite side (group B). Observations were made at 6 months after the operation. Study III: An observational study was done in 12 patients with androgenetic alopecia about 1 year after transplantation of occipital hair to frontal scalp. At each step, survival rates were documented and the rate of growth and the diameter of the shafts were measured for both recipient and donor sites. RESULTS: Study I: Surviving hairs on the lower leg showed a lower growth rate (8.2 +/- 0.9 mm/month), but the same diameter (0.086 +/- 0.018 mm) compared with occipital hairs (16.0 +/- 1.1 mm/month, 0.088 +/- 0.016 mm). The survival rate 3 years after transplantation was 60.2%. Study II: There was no significant difference in the growth rate, shaft diameter, and survival rate between retransplanted hairs (group A) and controls (group B). Groups A and B showed a lower growth rate, but the same diameter, compared with occipital hairs. Study III: There was no significant difference in the growth rate and shaft diameter between the transplanted hairs on the frontal scalp and the occipital hairs. CONCLUSION: These results strongly suggest that the recipient site affects some characteristics of transplanted hairs, such as their growth and survival rates.

Ther Umsch 2002 May;59(5):238-42

Hair loss in internal medical illnesses

Hair loss related to internal diseases is generally temporary and often fully reversible. An iron- or protein-deficiency induced hair loss may be cured by simple substitution. In acute internal diseases, fever and after operations the patient may expect complete recovery of the hair loss without therapy. Symptomatic alopecia due to chronic diseases has a different prognosis and is dependent on the severity and character of the underlaying disease. If the systemic disease can be cured the hair loss may be decreased. Treatment and diagnosis of the systemic disease is recommended to be performed in cooperation with experts of internal medicine, oncologists and specialists of endocrinology.

J Altern Complement Med 2002 Apr;8(2):143-52

A randomized, double-blind, placebo-controlled trial to determine the effectiveness of botanically derived inhibitors of 5-alpha-reductase in the treatment of androgenetic alopecia.

BACKGROUND: Androgenetic alopecia (AGA) is characterized by the structural miniaturization of androgen-sensitive hair follicles in susceptible individuals and is anatomically defined within a given pattern of the scalp. Biochemically, one contributing factor of this disorder is the conversion of testosterone (T) to dihydrotestosterone (DHT) via the enzyme 5-alpha reductase (5AR). This metabolism is also key to the onset and progression of benign prostatic hyperplasia (BPH). Furthermore, AGA has also been shown to be responsive to drugs and agents used to treat BPH. Of note, certain botanical compounds have previously demonstrated efficacy against BPH. Here, we report the first example of a placebo-controlled, double-blind study undertaken in order to examine the benefit of these botanical substances in the treatment of AGA. OBJECTIVES: The goal of this study was to test botanically derived 5AR inhibitors, specifically the liposterolic extract of Serenoa repens (LSESr) and beta-sitosterol, in the treatment of AGA. Subjects: Included in this study were males between the ages of 23 and 64 years of age, in good health, with mild to moderate AGA. RESULTS: The results of this pilot study showed a highly positive response to treatment. The blinded investigative staff assessment report showed that 60% of (6/10) study subjects dosed with the active study formulation were rated as improved at the final visit. CONCLUSIONS: This study establishes the effectiveness of naturally occurring 5AR inhibitors against AGA for the first time, and justifies the expansion to larger trials.

Being such a complex biological process, hair growth biology is still a work in progress. Noetheless, several therapeutic methods, including drugs, surgery, and suppelements have been in use to help those who attempt to restore their hair. None of these approaches are perfect due to the diversity in the causes underlying hair loss. Also, most of chemical drugs and hair transplantation surgeries are accompanied by undesirable side effects.

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