Results 21 to 30 of about 1,329,317 (278)

Hypopigmented macules of the limbs in two sisters: report on familial Bier spots [PDF]

Anais Brasileiros de Dermatologia, 2015
Bier spots are asymptomatic, small, irregular, hypopigmented macules characterized by a normal histological appearance, which are usually found on the arms and legs of young adults.
Giuseppe Stinco, Enzo Errichetti, Pasquale Patrone   +2 more
doaj   +1 more source

The influence of pigmentation patterning on bumblebee foraging from flowers of Antirrhinum majus [PDF]

, 2013
Patterns of pigmentation overlying the petal vasculature are common in flowering plants,and have been postulated to play a role in pollinator attraction.
Milne, Georgina, Vignolini, S. ; https://orcid.org/, Rands, S., Rands, Sean A, Vignolini, Silvia, Martin, Cathie, Martin, C., Milne, G., Glover, B., Whitney, H., Whitney, Heather M, Glover, Beverley J.   +11 more
core   +1 more source

Molecular genetics and mechanisms of pigmentation and melanoma [PDF]

, 2010
Ever since man domesticated the first wild animals several thousand years ago, many species have been living in close relationship with humans, being objects for our requests and wishes about any kind of phenotypic traits.
Sundström, Elisabeth
core   +1 more source

Evaluation of the effectiveness of microneedling with tranexamic acid in comparison with microneedling with vitamin C in the treatment of melasma: A prospective and single‐blind clinical trial

Health Science Reports, 2023
Background and Aims Melasma is a common skin condition. Microneedling acts as a dermal delivery system that facilitates the penetration of lightening agents such as vitamin C and tranexamic acid (TXA) into the deeper layers of the skin.
Nader Pazyar, Maryam Raeispour, Reza Yaghoobi, Maryam Seyedtabib   +3 more
doaj   +1 more source

Skin Pigmentation Types, Causes and Treatment—A Review

Molecules, 2023
Human skin pigmentation and melanin synthesis are incredibly variable, and are impacted by genetics, UV exposure, and some drugs. Patients’ physical appearance, psychological health, and social functioning are all impacted by a sizable number of skin ...
Amin Mahmood Thawabteh, Alaa Jibreen, Donia Karaman, Alà Thawabteh, Rafik Karaman   +4 more
doaj   +1 more source

Dowling-Degos Disease: Case Report and Review of the Literature [PDF]

, 2010
Dowling-Degos disease (DDD) is an unusual pigmentary disorder usually caused by mutations in keratin 5. A 44-year-old woman in good general health presented due to the recent appearance of numerous pigmented macules on her axillary and anogenital skin. A
Batycka-Baran, Aleksandra, Burgdorf, Walter H. C., Baran, Wojciech, Hryncewicz-Gwozdz, Anita   +3 more
core   +1 more source

Pigmentation disorders and dyschromias [PDF]

, 2015
Boja kože odraz je mješavine četiriju pigmenata: endogeno stvorenog smeđeg melanina, egzogenoga žutog karotena te reduciranoga plavog i oksidiranoga crvenog hemoglobina. Glavna determinanta boje kože je melanin. Sinteza melanina odvija se u melanocitima,
Čoga, Matilda
core   +1 more source

Mechanism, Formulation, and Efficacy Evaluation of Natural Products for Skin Pigmentation Treatment

Pharmaceutics
Skin pigmentation typically arises from the excessive secretion and accumulation of melanin, resulting in a darker complexion compared to normal skin. Currently, the local application of chemical drugs is a first-line strategy for pigmentation disorders,
Xueli Peng, Yuning Ma, Chenxin Yan, Xiaocen Wei, Linlin Zhang, Hehe Jiang, Yuxia Ma, Suohui Zhang, Mengzhen Xing, Yunhua Gao   +9 more
doaj   +1 more source

Genetic deciphering of the antagonistic activities of the melanin-concentrating hormone and melanocortin pathways in skin pigmentation.

PLoS Genetics, 2020
The genetic origin of human skin pigmentation remains an open question in biology. Several skin disorders and diseases originate from mutations in conserved pigmentation genes, including albinism, vitiligo, and melanoma.
Romain Madelaine, Keri J Ngo, Gemini Skariah, Philippe Mourrain   +3 more
doaj   +1 more source

The role of the mast cell in pigmentation disorders

Pigment International, 2021
The mast cell is a critical mediator of the inflammatory response by secreting histamine. While histamine is currently not regarded as a melanogen, recent studies have shown histamine release to induce melanogenesis, melanocyte proliferation and ...
Valdemar Wendelboe Nielsen, Simon Francis Thomsen   +1 more
doaj   +1 more source