Results 21 to 30 of about 74,226 (261)
Scientific Reports, 2023 Scalp hairs are readily present at most crime scenes because an average person sheds around 100 hairs a day. Forensic experts analyze hair found at crime scenes to identify suspects involved in a crime.
Samantha Higgins, Dmitry Kurouski
doaj +1 more source
Color Protection from UV irradiation of artificial dyes with grape seed (Vitis vinifera) extract
Journal of Photochemistry and Photobiology, 2022 Hair color fade is an important issue for consumers who use permanent hair colorants and is caused by both washing and UV exposure. The mechanism of light-induced fading was explored using a solution model system and shows that both UV and visible light ...
Sonja L Knowles +10 more
doaj +1 more source
Tyrosinase Depletion Prevents the Maturation of Melanosomes in the Mouse Hair Follicle. [PDF]
PLoS ONE, 2015 The mechanisms that lead to variation in human skin and hair color are not fully understood. To better understand the molecular control of skin and hair color variation, we modulated the expression of Tyrosinase (Tyr), which controls the rate-limiting ...
Elyse K Paterson +8 more
doaj +1 more source
Frontiers in Medicine, 2022 The Giant pandas (Ailuropoda melanoleuca) are mammals belonging to the bear family, order Carnivora, and their characteristic hair color and distribution has been in the spotlight.
Yingyun Wang +7 more
doaj +1 more source
RGUHS Journal of Medical Sciences, 2018 History of the coloring of the gray hairs can be traced back to Sumerians and Pharaohs 2000 BC. Women in the past used hair colors to hide their gray hairs. Today men are also applying hair color to hide their gray hairs and younger people color their hair as a fashion. The discovery of paraphenylenediamine and better understanding of chemistry of hair
K. Hanumanthayya +3 more
openaire +1 more source
PLoS Genetics, 2008 We conducted a multi-stage genome-wide association study of natural hair color in more than 10,000 men and women of European ancestry from the United States and Australia. An initial analysis of 528,173 single nucleotide polymorphisms (SNPs) genotyped on
Jiali Han +16 more
doaj +1 more source
The Effect of Hair Color on the Incorporation of Codeine into Human Hair [PDF]
Journal of Analytical Toxicology, 2003 The influence of melanin on the binding of xenobiotics in hair will impact the interpretation of drug concentrations determined by hair testing. The purpose of this study was to determine if codeine, as a model compound of abused drugs, would be incorporated into black, brown, blond, or red hair as a function of melanin concentration.
Rollins, D.E. +7 more
openaire +3 more sources
The Effect of Hair Color on the Incorporation of Methadone into Hair in the Rat [PDF]
Journal of Analytical Toxicology, 1996 Six groups of six male, hooded, Lister rats were administered methadone in their drinking water over the concentration range 0-0.25 mg/mL for 6 weeks. Black pigmented and white nonpigmented hair and trunk blood samples were collected. Plasma and alkali digests of hair were analyzed for methadone by radioimmunoassay.
S J, Green, J F, Wilson
openaire +2 more sources
Allelic Frequencies of 20 Visible Phenotype Variants in the Korean Population [PDF]
Genomics & Informatics, 2013 The prediction of externally visible characteristics from DNA has been studied for forensic genetics over the last few years. Externally visible characteristics include hair, skin, and eye color, height, and facial morphology, which have high ...
Ji Eun Lim, Bermseok Oh
doaj +1 more source
Types of Hair Dye and Their Mechanisms of Action
Cosmetics, 2015 Hair color change by dye application is a common procedure among women. Hair dyes are classified, according to color resistance, into temporary, semipermanent, demipermanent and permanent.
Simone Aparecida da França +4 more
doaj +1 more source