- #Differences between pokemon black and white 2 skin
- #Differences between pokemon black and white 2 plus
#Differences between pokemon black and white 2 plus
La différence la plus évidente, entre les peaux ethniques, est leur couleur liée à la présence de la mélanine. Récemment, un besoin d’études reliant les diffèrences génétiques et phénotypiques entre différents groupes raciaux s'est fait sentir et de ce fait beaucoup d’études à grande èchelle ont été entreprises. Maisla plupart de ces études ont été réalisées à petite échelle et dans certains cas les différences observées entre les individus au niveau de la qualité de la peau ne font pas ressortir de différence entre races. Plusieurs groupes de travail ont essayé au cours des dernières années de comprendre les différences sous-jacentes de la structure et de la fonction de la peau de différentes ethnies. Pourtant la littérature consacrée aux caractéristiques de ces sujets est limitée. Les gens qui ont une peau de couleur représentent la majorité de la population mondiale et les sujets asiatiques en représentent plus de la moitié.
#Differences between pokemon black and white 2 skin
In conclusion, we know more of the biophysical and somatosensory characteristics of ethnic skin types but clearly, there is still more to learn and especially about the inherent underlying biological differences in ethnic skin types. Nevertheless, several studies indicate that Asian skin maybe more sensitive to exogenous chemicals probably due to a thinner SC and higher eccrine gland density. The frequency of skin sensitivity is quite similar across different racial groups but the stimuli for its induction shows subtle differences. Equally increased mast cell granule size occurs in these subjects. Increased pores size, sebum secretion and skin surface microflora occur in Negroid subjects. In very general terms as the desquamatory enzymes are extruded with the lamellar granules subjects with lowered SC lipid levels are expected to have lowered desquamatory enzyme levels. One recent study has shown reduced epidermal Cathepsin L2 levels in darker skin types which if also occurs in the SC could contribute to the known skin ashing problems these subjects experience. These differences will contribute to differences in desquamation but few data are available. In contrast reduced SC natural moisturizing factor levels have been reported compared with Caucasian and African American skin. Differences in intercellular cohesion are obviously apparent. Asian skin is reported to possess a similar basal transepidermal water loss (TEWL) to Caucasian skin and similar ceramide levels but upon mechanical challenge it has the weakest barrier function. One has to remember that barrier function relates to the total architecture of the SC and not just its lipid levels. Nevertheless, upon a chemical or mechanical challenge the SC barrier function is reported to be stronger in subjects with darker skin despite having the reported lowest ceramide levels. However, despite having a more compact stratum corneum (SC) there are conflicting reports on barrier function in these subjects. Changes in skin biophysical properties with age demonstrate that the more darkly pigmented subjects retaining younger skin properties compared with the more lightly pigmented groups. Induction of a hyperpigmentary response is thought to be through signaling by the protease-activated receptor-2 which together with its activating protease is increased in the epidermis of subjects with skin of colour. Generally Caucasians have an earlier onset and greater skin wrinkling and sagging signs than other skin types and in general increased pigmentary problems are seen in skin of colour although one large study reported that East Asians living in the U.S.A. However, all racial groups are eventually subjected to the photoaging process. The photoprotection derived from this polymer influences the rate of the skin aging changes between the different racial groups. The most obvious ethnic skin difference relates to skin colour which is dominated by the presence of melanin. There has been a recent call for more studies to address genetic together with phenotypic differences among different racial groups and in this respect several large-scale studies have been conducted recently.
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However, most of these studies have been of small scale and in some studies interindividual differences in skin quality overwhelm any racial differences. Several groups over the past decades have attempted to decipher the underlying differences in skin structure and function in different ethnic skin types. Even so, the literature on the characteristics of the subjects with skin of colour is limited. People of skin of colour comprise the majority of the world's population and Asian subjects comprise more than half of the total population of the earth.