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Dermatol Surg 2002 Nov;28(11):1035-42; discussion 1042
A philosophy and strategy for surgical hair restoration: a 10-year experience.
BACKGROUND: Three principal strategies have evolved for surgical hair restoration: follicular grafting, scalp reduction, and flap rotation. OBJECTIVE: Although grafting techniques have assumed a preeminent rank as the cornerstone of modern hair-replacement therapy, scalp reduction and rotation methods should not be entirely dismissed. METHODS: Over the past 10 years of clinical experience, the authors have relied on all three methods of hair restoration, carefully tailoring the optimal surgical approach to the patient's expressed concerns and particular regional hair deficit. RESULTS: We have found that scalp reduction and rotation provides a considerable density of hair unmatched by any grafting technique for the vertex and frontotemporal regions, respectively. CONCLUSION: Also we have concluded that the former yields the most natural result for a patient with significant crown baldness who desires hair restoration in that area. However, micro- and minigrafting still represent the overwhelming majority of our operative cases. This article attempts to review the surgical methodology and philosophy that have guided our approach to hair restoration.
Ann Dermatol Venereol 2002 May;129(5 Pt 2):801-3
Androgenetic alopecia
Androgenetic alopecia (AGA) is the combined result of an androgen-dependent process and genetic transmission. These characteristics have mainly, if not exclusively, been demonstrated in men and perhaps improperly extended to women. When considering the androgen-dependent process, AGA must only be limited to the androgen receptor areas. In the scalp, these receptors have only been detected in the frontal and vertex areas but never in the temporal or the occipital areas. Male AGA exhibits these clinical features, whereas in women hair loss is rarely limited to this localization, even when large areas of hair loss often appear with age. It is now commonly accepted that male AGA is associated with an increase in 5 alpha reductase activity leading to an increase in local production of dihydrotestosterone. The mechanism by which the local dihydrotestosterone increase leads to hair follicle loss is not clearly demonstrated. Inhibition of cell proliferation in the dermal papilla and a vascular process based on the inhibition in local production of vascular endothelial growth factor (VEGF) have been proposed. The increase in 5 alpha reductase activity is genetic and depends on androgen receptor polymorphism, characterized by a decrease in the number of CAG sequences on the exon 1. Male AGA is associated with an insulin-resistant process and to a higher risk of polycystic ovary in the lineage. Therapeutically, this hormone-dependent process explains the well demonstrated efficacy of 5 alpha reductase inhibitors. In women, except in some rare cases, alopecia is diffuse and the mechanisms are different. Their origin is unknown, and probably ambiguous. Based on an association with Hashimoto's thyroiditis, an auto-immune origin could be suggested in some cases. Alopecia is unaffected by thyroid substitution. Pharmacological doses of oestrogens (pregnancy, contraception) have a beneficial effect on such alopecia, probably through different mechanisms: anti-androgen effect, increased VEGF, proliferative effect of dermal papilla cells. However, it is important to mention that the dermal papilla has an aromatase, particularly in the occipital area, the activity of which has not been assessed in female alopecia. In practice 5 alpha reductase inhibitors are ineffective in women. It is likely that the predominance observed in the frontal and vertex areas, occasionally in elderly women, is a result of the two combined disorders, the almost physiological androgen-dependent hair loss combined with diffuse loss. Pharmacological doses of oestrogens associated with anti-androgen progesterone-like agents are widely used with positive results, but not demonstrated by clinical trials.
Clin Exp Dermatol 2002 Jul;27(5):418-21
Cosmetics and hair loss.
Cosmetic hair care products are often implicated by the user or the clinician in cases of hair loss. Yet, these products are used ad lib, in a wide variety of home conditions and on a wide variety of hair types, by millions of consumers every day with no adverse effects. Based on this extensive data set, the absence of literature reports, and a detailed understanding of the mode of action of cosmetic hair care products, we can conclude that they do not cause hair loss. Clinicians investigating cases of hair loss must fully appreciate the hair cycle, the length of time a single fibre may be present on the head, and its biological and cosmetic history in order to understand the causes of hair loss and make the correct diagnosis. With a better understanding of the cosmetic practices used by everyday consumers, the clinician will be in a strong position to help patients re-grow their hair and guide them through a high quality hair care regime.
J Cardiovasc Risk. 2003 Jun;10(3):227-31.
Hair loss, insulin resistance, and heredity in middle-aged women. A population-based study.
CONTEXTThe association of androgenic alopecia (AGA) with insulin resistance, coronary artery disease and hypercholesterolemia has been previously reported in men, but no such association has been reported in women with female androgenic alopecia (AGA). Female AGA has usually been linked with hyper-androgenism and hirsutism and, most recently, also with polycystic ovarian syndrome (PCOS), even though epidemiological documentation of the latter association is scanty. Polycystic ovarian syndrome is quite common among Caucasian women, and its association with insulin resistance is well documented.OBJECTIVES AND DESIGNThe aim of this study was to obtain a more precise estimation of the prevalence on female AGA and to describe its possible connections with insulin resistance linked parameters and with paternal and maternal family history of alopecia. A cross-sectional population based cohort survey was carried out in the City of Oulu, Finland in 1998.SETTING AND PARTICIPANTSAs a part of a population based cohort study the hair status of 324 women aged 63 years was assessed by a modification of Ludwig's scale. The background data consisting of anthropometric measures (weight, height, body mass index, waist, hip and neck circumferences), smoking status, chronic diseases and their medication as well as the family history of AGA were collected by questionnaires and interviews made by study nurses and in clinical examination. Blood samples for laboratory tests were taken on the same occasion.RESULTSThe prevalence of extensive loss of hair (at least grade II or III on Ludwig's scale) was quite high (31.2%). The insulin resistance associated parameters, such as waist and neck circumferences, abdominal obesity measured by waist-to-hip ratio, mean insulin concentration (11.3 mU/l versus 9.95 mU/l, p=0.02) or urinary albumin-to-creatinine ratio (1.80 versus 1.58, p=0.01), were significantly higher in women with extensive hair loss compared to those with normal hair or only minimal hair loss (grade I on Ludwig's scale). The women belonging to the highest quintiles of neck or waist circumferences had significantly increased risk for extensive hair loss compared to those with normal hair or minimal hair loss, the unadjusted ORs being 2.25 (95% CI, 1.26-4.03) and 1.75 (95% CI, 1.00-3.07), respectively. Similarly in women with hyperinsulinemia (fs-insulin >10 mU/l), microalbuminuria (urinary albumin-to-creatinine ratio exceeding the highest microalbuminuria decile (>2.5 mg/mmol) and paternal history of AGA the ORs for alopecia were increased being 1.65 (95% CI, 1.02-2.67), 2.39 (95% CI, 1.21-4.73) and 2.08 (95% CI, 1.26-3.44). All of these ORs, except those for highest quintiles of waist and neck circumferences remained significant in multiple adjusted models.CONCLUSIONSAccording to the results of this study, female AGA (grade II or III on Ludwig's scale) was quite common among Finnish women aged 63 years. Our results support the hypothesis that women with some markers of insulin resistance have significantly increased risk for female AGA. Paternal history of alopecia seemed to be more common in female AGA compared to women with normal or minimal loss of hair.
Hair Million is an anecdotally proven herbal formula that wards off hair loss problems. Based on Chinese herbs, Hair Million is an alternative solution to the age-related
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Related Web resources:
What is hair?
Curly Hair
Biology of hair growth and development.
The phenomenon of hair loss.
Methods and treatments for hair loss and baldness.
Drugs and hair transplantation surgery for hair loss and baldness.
Hair loss linked to other health problems.
Baldness by choice and fashion.
Alopecia info.
Alopecia treatment info.
Alopecia treatment info.
Hair care info.
Hair loss and alopecia research articles: abstracts and source links.
DHEA has been suggested to provide numerous potential benefits. DHEA (or dehydroepiandrosterone) is converted into androgens (male hormones)
or estrogens (female hormones) in the cells.
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