Taille des mélanosomes

Table 2. Mean ± SD size of melanosomes within keratinocytes of various skin types*

Group

Description of group

Mean melanosome size (µm²) x 10^-2

Random melanosomes

Individual melanosomes

Clustered melanosomes

1

Asian boys (mean age = 12 years, n = 3)

1.47 ± 1.63

1.55 ± 0.56

0.79 ± 0.38

2

Young adult Asian women (mean age = 24 years, n = 3)

1.41 ± 0.65

1.67 ± 0.75

1.21 ± 0.56

3

Young adult Asian men (mean age = 26 years, n = 3)

1.46 ± 0.71

1.37 ± 0.61

0.67 ± 0.29

4

Older Asian women (mean age = 48 years, n = 3)

1.10 ± 0.45

1.47 ± 0.52

0.91 ± 0.34

5

Older Asian men (mean age = 63 years, n = 3)

1.34 ± 0.74

1.37 ± 0.47

0.79 ± 0.35

Mean

Asian population (mean age = 35 years, n = 15)

1.36 ± 0.15^d

1.49 ± 0.13^a

0.88 ± 0.20^a

6

African/Americans (mean age = 29 years, n = 3)

1.44 ± 0.67

1.64 ± 0.50^b

0.62 ± 0.30^b

7

Caucasians (mean age = 32 years, n = 3)

0.94 ± 0.48^d

1.56 ± 0.55^c

0.67 ± 0.32^c

Table 2. Mean ± SD size of melanosomes within keratinocytes of various skin types*

Group

Description of group

Mean melanosome size (µm²) x 10^-2

Random melanosomes

Individual melanosomes

Clustered melanosomes

1

Asian boys (mean age = 12 years, n = 3)

1.47 ± 1.63

1.55 ± 0.56

0.79 ± 0.38

2

Young adult Asian women (mean age = 24 years, n = 3)

1.41 ± 0.65

1.67 ± 0.75

1.21 ± 0.56

3

Young adult Asian men (mean age = 26 years, n = 3)

1.46 ± 0.71

1.37 ± 0.61

0.67 ± 0.29

4

Older Asian women (mean age = 48 years, n = 3)

1.10 ± 0.45

1.47 ± 0.52

0.91 ± 0.34

5

Older Asian men (mean age = 63 years, n = 3)

1.34 ± 0.74

1.37 ± 0.47

0.79 ± 0.35

Mean

Asian population (mean age = 35 years, n = 15)

1.36 ± 0.15^d

1.49 ± 0.13^a

0.88 ± 0.20^a

6

African/Americans (mean age = 29 years, n = 3)

1.44 ± 0.67

1.64 ± 0.50^b

0.62 ± 0.30^b

7

Caucasians (mean age = 32 years, n = 3)

0.94 ± 0.48^d

1.56 ± 0.55^c

0.67 ± 0.32^c

Table 2. Mean ± SD size of melanosomes within keratinocytes of various skin types*

Group

Description of group

Mean melanosome size (µm²) x 10^-2

Random melanosomes

Individual melanosomes

Clustered melanosomes

1

Asian boys (mean age = 12 years, n = 3)

1.47 ± 1.63

1.55 ± 0.56

0.79 ± 0.38

2

Young adult Asian women (mean age = 24 years, n = 3)

1.41 ± 0.65

1.67 ± 0.75

1.21 ± 0.56

3

Young adult Asian men (mean age = 26 years, n = 3)

1.46 ± 0.71

1.37 ± 0.61

0.67 ± 0.29

4

Older Asian women (mean age = 48 years, n = 3)

1.10 ± 0.45

1.47 ± 0.52

0.91 ± 0.34

5

Older Asian men (mean age = 63 years, n = 3)

1.34 ± 0.74

1.37 ± 0.47

0.79 ± 0.35

Mean

Asian population (mean age = 35 years, n = 15)

1.36 ± 0.15^d

1.49 ± 0.13^a

0.88 ± 0.20^a

6

African/Americans (mean age = 29 years, n = 3)

1.44 ± 0.67

1.64 ± 0.50^b

0.62 ± 0.30^b

7

Caucasians (mean age = 32 years, n = 3)

0.94 ± 0.48^d

1.56 ± 0.55^c

0.67 ± 0.32^c