نتایج جستجو برای: pigmentation pattern
تعداد نتایج: 358273 فیلتر نتایج به سال:
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...
Abstract Background & Aim: The diffused melanotic pigmentation of oral mucosa is referred to any kind of brownish to black diffused and flattened macular and patch in physiologic or pathologic form. This view is important in aesthetic terms, the perception of malignancy, and association with systemic diseases, especially the endocrine glands diseases. Little local studies have been carried out ...
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 ...
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...
BACKGROUND Oral mucosal pigmentation is among the most common findings in smokers, affecting smile esthetics. Passive smoking significantly compromises the health of non-smoker individuals particularly women. The purpose of this study was to assess the relationship of passive smoking with oral pigmentation in non-smoker women. MATERIALS AND METHODS This historical-cohort study was conducted o...
In reptiles, dorsal body darkness often varies with substrate color or temperature environment, and is generally presumed to be an adaptation for crypsis or thermoregulation. However, the genetic basis of pigmentation is poorly known in this group. In this study we analyzed the coding region of the melanocortin-1-receptor (MC1R) gene, and therefore its role underlying the dorsal color variation...
For centuries skin pigmentation has played a major societal role, and genetic disorders of skin pigmentation have always evoked the curiosity of both laypersons and physicians. Normal skin pigmentation is a complex process that begins with the synthesis of melanin within the melanocytes, followed by its transfer to neighboring keratinocytes where it is translocated to the upper pole of the nucl...
A new species of Hemigrammus is described from the middle rio Solimões/Amazonas and tributaries, upper and middle rio Madeira, and rio Paraná-Paraguai basins in Brazil and Paraguay. The new species is most similar among congeners with Hemigrammus marginatus, with which it shares similar caudal-fin pigmentation pattern. The new species can be distinguished from Hemigrammus marginatus by possessi...
Loss of fine skin patterning is a sign of both aging and photoaging. Studies investigating the genetic contribution to skin patterning offer an opportunity to better understand a trait that influences both physical appearance and risk of keratinocyte skin cancer. We undertook a meta-analysis of genome-wide association studies of a measure of skin pattern (microtopography score) damage in 1,671 ...
A single-copy sense Chalcone synthase (Chs) transgene driven by a strong promoter and producing a fully translatable transcript was converted to an allelic antisense Chs transgene by Cre-lox-mediated DNA recombination in petunia. The sense Chs allele suppressed flower pigmentation in a simple pattern determined by cells at the junctions between adjacent petals, as is typical of single-copy sens...
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