A random study of Asian male androgenetic alopecia in Bangkok, Thailand.

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Dermatol Surg 2002 Sep;28(9):804-7

A random study of Asian male androgenetic alopecia in Bangkok, Thailand.

BACKGROUND: Androgenetic alopecia remains the most common cause of male pattern baldness (MPB) in all races. The prevalence of MPB in Caucasians is well documented. The prevalence of MPB in Asians is believed to be very low, only one-fourth to one-third on average compared to Caucasians. However, according to my previous study, there is a clear trend indicating that it is approaching that of Caucasians. OBJECTIVE: To assess the prevalence of MPB in the Asian population in Bangkok, Thailand; to compare this prevalence to previous studies conducted on Asians; and to compare the results to previous studies conducted on Caucasian. METHODS: This study was conducted by two physicians and assisted by two registered nurses. The questionnaire included age, sex, Norwood classification, diet, family history of baldness, income, and education. The physicians examined the scalp of each interviewee upon completion of each questionnaire. The ethnic focus group in this study was Thai and Chinese who reside in Bangkok, Thailand. The interviews were conducted in hospitals, nursing homes, classroom, medical meetings, temples, parks, and villages. RESULTS: A total of 1124 men were randomized in this study. The prevalence of cosmetically significant MPB (Norwood III-VII) was 38.52% and steadily increasing with age, approaching that of Caucasians. Variant MPB was found to be 0.67% and other types of androgenetic alopecia was 0.6%. From an ethnic point of view, the majority of the groups were of mixed blood and mostly of Chinese origin, thus we were unable to distinguish between Chinese and Thai. CONCLUSION: This study shows that the prevalence of MPB in Asians is not as low as previously thought. The cause of this increasing prevalence is uncertain. There are no past studies in Thailand for comparison, however, it can be extrapolated that the socioeconomic environment and westernized diet may contribute to this prevalence.

J Dermatol Sci 2002 Aug;29(2):85-90

Antioxidant enzymes and lipid peroxidation in the scalp of patients with alopecia areata.

Alopecia areata (AA) is an autoimmune inflammatory disease. However, little is known about the alterations in lipid peroxidation and antioxidant enzymes in the scalp of patients with AA. Therefore, the aim of this study was to investigate the status of oxidative stress in the scalp of patients with AA. We measured the levels of thiobarbituric acid reactive substances (TBARS) as lipid peroxidation status, superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) as antioxidant enzymes in the scalp of ten patients with AA and ten control subjects. The levels of TBARS in scalp of patients with AA (3654.1+/-621.2 nmol/g tissue) were significantly higher than those of controls (1210.2+/-188.8 nmol/g tissue) (P=0.002). The levels of SOD (134.8+/-23.8 U/g tissue) and GSH-Px (332.7+/-66.2 U/g tissue) in scalp of patients with AA were also significantly higher than those of controls (63.2+/-8.8 U/g tissue, 112.0+/-18.4 U/g tissue, respectively) (P=0.019, P=0.002, respectively). The mean levels of TBARS, SOD and GSH-Px in early phase of disease were increased 2-fold as compared with late phase of the disease. These results indicate that oxidative status is affected in AA. Lipid peroxidation and antioxidant enzymes may be involved in the pathogenesis of AA. Furthermore, we found high SOD and GSH-Px activities in the scalp of patient with AA. These high levels could not protect the patients against the reactive oxygen species, because lipid peroxidation could not be lowered in AA patients.

Oncology 2002;62(2):97-102

Effectiveness of the MSC cold cap system in the prevention of chemotherapy-induced alopecia.

OBJECTIVE: To study the effectiveness of the MSC cold cap system to prevent chemotherapy-induced alopecia. METHODS: The system was applied in 83 cancer patients (mean age 49.8 years) undergoing chemotherapy with alopecia-causing agents. Seven patients did not tolerate the system. Seventy-six patients were evaluable for assessment; 26 received anthracycline (group A), 33 taxane (group T), 5 anthracycline plus taxane (group AT), 7 intravenous etoposide (group E) and 5 ifosfamide with or without other alopecia-causing drugs (group I). In group A, 18 patients received conventional (subgroup Ac) and 8 high doses (subgroup Ah). In group T, 8 patients received docetaxel (subgroup D) and 25 paclitaxel (subgroup P). Alopecia grade 0-1 (Dean's system) was considered as treatment success. RESULTS: Grade 0-1 alopecia was achieved in 49/76 (64.5%) patients: group T 23/33 (69.6%), subgroup P 16/25 (64%) and subgroup D 7/8 (87.5%); group A 18/26 (69.2%), subgroup Ac 16/18 (88.8%) and subgroup Ah 2/8 (25%); group AT 1/5 (20%); group E 6/7 (85.7%), and group I 1/5 (20%). CONCLUSIONS: The MSC cold cap system is effective in preventing alopecia from anthracycline, etoposide or taxane but not from anthracycline-taxane combinations or ifosfamide-containing regimens.

Cancer Pract 2001 Nov-Dec;9(6):283-9

Psychological sequelae and alopecia among women with cancer.

PURPOSE: This article reviews the relevant literature on treatment-induced alopecia in women with cancer and describes the development of a computer-assisted intervention to reduce distress associated with this side effect. DESCRIPTION OF PROGRAM: Alopecia has been cited as the most disturbing anticipated side effect by up to 58% of women preparing for chemotherapy, with 8% being at risk for avoiding treatment. Women with cancer who experience alopecia as a side effect, compared with women with cancer and no alopecia, report lower self-esteem, poorer body image, and lower quality of life. Although physicians' recommendations are the most influential factor on cancer treatment choice, body image and effects on sexuality are the next most influential factors. A study of a computer-imaging intervention, based on concepts related to guided imagery and anticipatory grief, has been launched in an effort to aid women in coping with anticipated treatment-related alopecia. RESULTS: While we are still waiting for final data collection and analysis from the computer intervention study, the feedback thus far has been positive. CLINICAL IMPLICATIONS: The intervention described here may prove to be effective in desensitizing women with cancer to hair loss and facilitating an adjustment to self-acceptance. As such, a higher quality of life during the difficult time of coping may be maintained. The development of a computer-imaging intervention offers an opportunity to integrate a standard psychosocial intervention, personalized for each patient, into the routine patient care in the oncology setting.

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