Results 31 to 40 of about 1,374 (165)

Exogenous ochronosis after prolonged use of topical hydroquinone (2%) in a 50-year-old Indian female

open access: yesIndian Journal of Dermatology, 2012
Ochronosis is a rare disease characterized by speckled and diffuse pigmentation symmetrically over the face, neck, and photo-exposed areas. It is characterized histologically by banana-shaped ochre-colored deposits in the dermis.
Vijay Gandhi   +2 more
doaj   +1 more source

Ochronotic Chondropathy: A Case Report

open access: yesBiomedicines, 2023
Endogenous ochronosis, also known as alkaptonuria, is a rare disease known for its bluish-black discoloration of the skin, sclerae, and pinnae, as well as urine that turns black upon standing.
Jake Littman   +4 more
doaj   +1 more source

Revisiting Quantification of Phenylalanine/Tyrosine Flux in the Ochronotic Pathway during Long-Term Nitisinone Treatment of Alkaptonuria

open access: yesMetabolites, 2022
Changes in the phenylalanine (PHE)/tyrosine (TYR) pathway metabolites before and during homogentisic acid (HGA)-lowering by nitisinone in the Suitability of Nitisinone in Alkaptonuria (AKU) 2 (SONIA 2) study enabled the magnitude of the flux in the ...
Lakshminarayan R. Ranganath   +10 more
doaj   +1 more source

Knee degenerative osteoarthritis secondary to ochronosis (case report)

open access: yesTravmatologiâ i Ortopediâ Rossii, 2013
Alkaptonuria is rare disease with deficiency of homogentisate-1,2-dioxygenase enzyme, resulting in excess deposition of homogentisic acid in connective tissue. This deposition leads to ochronosis - brownish-black pigmentation of connective tissue.
V. V. Bliznyukov   +2 more
doaj   +1 more source

Exogenous ochronosis: case report and literature review Ocronose exógena: relato de caso e revisão de literatura

open access: yesAnais Brasileiros de Dermatologia, 2012
Exogenous ochronosis is a rare, cosmetically disfiguring condition, resulting from the longterm use of topical hydroquinone in treatment of melasma. It manifests as gray-brown or blue-black macules in hydroquinone-exposed regions.
Viviane Maria Rocha Martins   +5 more
doaj   +1 more source

Case Report: Ochronotic Arthropathy

open access: yesForbes Tıp Dergisi, 2021
Ochronosis is a rare metabolic disease caused by the deficiency of the homogentisic acid oxidase enzyme. It gives clinical findings related to the accumulation of homogentisic acid in soft tissues and excretion in urine. Patients with chronic arthropathy
Ülkü Dönmez   +3 more
doaj   +1 more source

Low Sunscreen Awareness and Misconceptions in Skin of Colour With Acne‐Related Post‐Inflammatory Hyperpigmentation: A Cross‐Sectional Study Highlighting the Need for Targeted Education

open access: yesAustralasian Journal of Dermatology, EarlyView.
ABSTRACT Background/Objectives Post‐inflammatory hyperpigmentation (PIH) is a frequent sequela of acne in patients with skin of colour (SOC). While sunscreen is widely recommended for PIH prevention, little is known about real‐world sunscreen practices in this group. This study aimed to evaluate sunscreen use, barriers and factors influencing adherence
Xiaozhun Hang, Davin Sui Lim, Lisa Byrom
wiley   +1 more source

Exogenous Ochronosis (EO)

open access: yesAutopsy and Case Reports, 2021
Ochronosis is a cutaneous disorder caused by the accumulation of phenols, either endogenously as homogentisic acid in patients with alkaptonuria (autosomal recessive disorder with deficiency of the enzyme homogentisic acid oxidase), or exogenously in ...
Amir Qorbani   +4 more
doaj  

Exogenous ochronosis

open access: yesJournal of the American Academy of Dermatology, 2000
Ochronosis is an uncommon condition characterized by yellow-brown pigment deposits in the dermis. It occurs in exogenous and endogenous forms. We report a case of exogenous ochronosis in a Hispanic woman and discuss the different forms of this condition. We treated the lesions with Q-switched ruby laser.
K E, Kramer   +3 more
openaire   +2 more sources

Real‐world evidence for the efficacy and tolerability of an isobutylamido‐thiazolyl‐resorcinol (Thiamidol)‐containing skincare regimen on facial hyperpigmentation and overall skin appearance: A multi‐centre study in 11 European countries

open access: yesInternational Journal of Cosmetic Science, EarlyView.
A Thiamidol‐containing skincare regimen showed significant improvement in facial hyperpigmentation in a real‐world study across 11 European countries. The treatment led to a significant reduction in mMASI scores, enhanced overall skin condition and demonstrated high tolerability.
B. Schuster   +12 more
wiley   +1 more source

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