Photoaging in Asians

Abstract

The aging process of the skin can be divided into intrinsic and photoaging. Clinically, naturally aged skin is smooth, pale and finely wrinkled. In contrast, photoaged skin is coarsely wrinkled and associated with dyspigmentation and telangiectasia. Although the population of Asia is more than half the population of the Earth, no well-designed study has been undertaken to investigate the characteristics of cutaneous photodamage in Asian skin. As Asian skin is more pigmented, the acute and chronic cutaneous responses to UV irradiation seen in brown skin differ from those in white skin. The clinical characteristics of photoaging in Asian skin, such as pigmentary changes and wrinkle patterns, differ from those of Caucasian skin. This review provides an outline of the characteristic features of photoaging on the brown skin of Asians.

Exposure to fine particulate matter associated with senile lentigo in Chinese women: a cross‐sectional study

“…Individuals with SKs generally have a positive family history for the condition 12. Exposure to sunlight increases the risk for SKs 2. Friction may also play a role in SK development 11.…”

“…It is believed that solar radiation is an important pathogenic factor underlying the development of senile lentigo. Seborrheic keratosis (SK) is also a common problem in Asians, which is observed in 80% to 100% of population aged over 50 years 2. Among Chinese, most SKs are brown to dark brown.…”

The post-mortem resilience of facial creases and the possibility for use in identification of the dead

“…The two most common methods utilised for face wrinkle measurement involve the use of skin casts or skin replicas [1,[8][9][10] or the use of images [1,[10][11][12][13][14][15][16][17]. Biopsies [11,18,19], direct 3D invivo measurements [20] and elasticity measurements using a cutometer [8,10,21] have also been employed and a few studies utilised depth, number or length measurements for wrinkle quantification [12,14,19,22].…”

“…Biopsies [11,18,19], direct 3D invivo measurements [20] and elasticity measurements using a cutometer [8,10,21] have also been employed and a few studies utilised depth, number or length measurements for wrinkle quantification [12,14,19,22]. Three-dimensional measurements taken from the skin replicas rely on visual assessment by researchers to categorise the wrinkles [1,9].…”

Combined use of intense pulsed light and Q‐switched ruby laser for complex dyspigmentation among asian patients

“…Photoaging among Asians differ from their Caucasian counterparts in that dyspigmentation occurs to a greater extent than rhytid formation [1]. Common cosmetic concerns among individuals from the Far East include melasma, flat/small seborrheic keratoses, lentigines, post-inflammatory hyperpigmentation (PIH) and ABNOM (or Hori's macules) among others.…”