Faces each have distinct pigmentation as well as shape, which suggests that both cues may play a role in the perception of faces. However, there is a common implicit assumption that pigmentation cues are relatively unimportant, and so the role pigmentation plays in face perception has gone largely unexplored. This thesis is a systematic investigation of the role of pigmentation in face recognit...

There have been few previous studies of the kinetics of pigmentation following ultraviolet B (UVB) exposure, and these have included only fair-skinned persons. The current study investigated pigmentation increase to steady state and fading in 12 Scandinavians and 12 Indians/Pakistanis. Over a period of 3 weeks the subjects were UV-irradiated 6 times on the right side of the back and 12 times on...

Hutchinson–Gilford Progeria Syndrome is a rare genetic disorder characterized by premature aging involving the skin, bones, heart, and blood vessels. We report a five year old female child with clinical manifestations characteristic of this syndrome. This child had a senile look with large cranium, frontal bossing, sparse light brown hair and dilated visible veins over the scalp. Other features...

ALKAPTONURIA (AKU) is a rare inherited genetic disorder of tyrosine metabolism characterized by the triad of homogentisicaciduria, ochronosis and arthritis. It is one of the conditions in which Mandelian recessive inheritance was proposed.1 It was also one of the four inborn errors of metabolism described by Garrod in his croonian lectures of 1908.2 The clinical manifestations are that urine tu...

a research study was carried out on the indirect selection efforts amongst small scale holders of west african dwarf (wad) goats based on coat pigmentation and wattle types in ogbomoso, nigeria using personal interviews and structured questionnaires given using simple random on-farm techniques. the questionnaires were focused on the ownership distribution, preferred pigmentation and wattle type...

Skin pigmentation is a major feature of skin, and marker associated with beauty, health aging. Among the past genome-wide association studies on skin pigmentation, relatively small proportion have focused Chinese population. Large-scaled based measured phenotypes are particularly rare in other East Asian populations. In Jidong cohort study (N = 3,544), we low-exposed area colorimeter performed ...

Vitiligo is one of the skin diseases where there a disorder in pigmentation (skin color disorder), which characterized by presence macula hypopigmentation (a condition that causes part to become lighter than surrounding color) caused loss melanocyte function special cell found under epidermis functions produce pigments/melanin) chronically and progressively from epidermis. This disease if left ...

Recent studies demonstrated pigmented cells both in the murine heart, in pulmonary veins, and in brain arteries. Moreover, a role for melanocytes in the downregulation of inflammatory processes was suggested. As there is increasing evidence that inflammation is contributing significantly to the pathogenesis of intracranial aneurysms, melanocyte-like cells may be relevant in preventing age-relat...