نتایج جستجو برای: pigmentation disorders

تعداد نتایج: 680816  

Journal: :The British journal of ophthalmology 1980
G E Marak H Ikui

The severity of inflammation in sympathetic ophthalmia is related to the degree of pigmentation, and the granulomatous response seems to be related to pigmentation. Eosinophilia is also associated with pigmentation, but this association appears to be fortuitous and is a result of the association of eosinophilia with severity of the inflammation.

Journal: :The British journal of ophthalmology 2004
J W Harbour M A Brantley H Hollingsworth M Gordon

BACKGROUND/AIMS It is well known that light skin pigmentation is a risk factor for cutaneous melanoma. The aim of this study was to investigate the analogous association between choroidal pigmentation and posterior uveal melanoma. METHODS Cross sectional study of 65 consecutive patients diagnosed with posterior uveal melanoma (melanoma group) and 218 consecutive patients referred for general ...

Journal: :caspian journal of enviromental sciences 0

this study was conducted to examine morphometric and meristic characteristics alongside pigmentation patterns of bream larvae, abramis brama orientalis, in four stages of larval development. morphological characters including total length (tl), standard length (sl), notochord length (nl), head length (hl), head depth (hd), eye diameter (ed) and mouth width (mw) were examined from hatching time ...

2017
Sunkuk Kwon Eva M Sevick-Muraca

Near-infrared fluorescence imaging (NIRFI) and far-red fluorescence imaging (FRFI) were used to investigate effects of depilation-induced skin pigmentation and diet-induced background fluorescence on fluorescent signal amplitude and lymphatic contraction frequency in C57BL6 mice. Far-red fluorescent signal amplitude, but not frequency, was affected by diet-induced fluorescence, which was remove...

Journal: :Drug discovery today. Disease mechanisms 2008
Michaela Brenner Vincent J Hearing

Rates of skin cancer continue to increase despite the improved use of traditional sunscreens to minimize damage from ultraviolet radiation. The public perception of tanned skin as being healthy and desirable, combined with the rising demand for treatments to repair irregular skin pigmentation and the desire to increase or decrease constitutive skin pigmentation, arouses great interest pharmaceu...

BACKGROUND AND AIM: Oral pigmentation is a condition in which the color of oral mucosa such as gingival mucosa changes. Some exogenous and endogenous factors may lead to oral pigmentation. Secondhand smoke (SHS) or environmental tobacco smoke (ETS) is indirect smoking of an active smoker’s exhalation that can lead to cardiovascular, respiratory system, and some...

Journal: :iranian journal of otorhinolaryngology 0
amir hossain ghazizadeh department of otorhinolaryngology, shahid beheshti university of medical sciences, tehran, iran. mehdi bakhshaee ear, nose, throat, head and neck surgery research center, mashhad university of medical sciences, mashhad, iran ebrahim mahdavi audiologist, shahid beheshti university of medical sciences, tehran, iran. rahman movahhed department of otorhinolaryngology, faculty of medicine, mashhad university of medical sciences, mashhad, iran

introduction: it has been shown that low levels of pigmentation increase susceptibility to noise-induced hearing loss in humans. for this reason, white populations develop more pronounced noise- induced hearing loss in comparison to black populations. similarly, blue-eyed individuals exhibit greater temporary threshold shift than brown-eyed subjects; still, no strong correlation has been verifi...

Journal: :Evolution; international journal of organic evolution 2005
Jennifer A Brisson Daniela Cristina De Toni Ian Duncan Alan R Templeton

Drosophila polymorpha is a widespread species that exhibits abdominal pigmentation variation throughout its range. To gain insight into this variation we combined phenotypic and genotypic data to test a series of nested hypotheses. First, we tested the null hypothesis that geographic variation in pigmentation is due to neutral factors. We used nested clade analysis to examine the distribution o...

Journal: :Photochemistry and photobiology 2011
Clio Dessinioti Christina Antoniou Andreas Katsambas Alexander J Stratigos

The significance of human cutaneous pigmentation lies in its protective role against sun-induced DNA damage and photocarcinogenesis. Fair skin and red hair are characterized by a low eumelanin to pheomelanin ratio, and have been associated with increased risk of skin cancer. Cutaneous pigmentation is a complex genetic trait, with more than 120 genes involved in its regulation, among which the m...

2012
Mineo Senda Tasuku Kurauchi Atsushi Kasai Shizen Ohnishi

In soybean seeds, numerous variations in colors and pigmentation patterns exist, most of which are observed in the seed coat. Patterns of seed coat pigmentation are determined by four alleles (I, i(i), i(k) and i) of the classically defined I locus, which controls the spatial distribution of anthocyanins and proanthocyanidins in the seed coat. Most commercial soybean cultivars produce yellow se...

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