Results 41 to 50 of about 2,076 (188)

Cardiac ochronosis: not so benign

open access: yes, 2009
A 78-year-old patient with ochronosis has developed symptomatic aortic stenosis. He has undergone an aortic valve replacement that was highly complicated by a severe aortic calcification.
Mathonet, Perrine   +3 more
core   +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

Recent advances in understanding the pathogenesis of ochronosis : Najnowsze postępy w zrozumieniu patogenezy ochronozy

open access: yes, 2012
Alkaptonuria (AKU) is an iconic disease caused by deficiency of the enzyme homogentisate 1,2-dioxygenase (HGD). Deficiency results in an increase in the circulating concentration of homogentisic acid (HGA), which over time is deposited as pigmented ...
Taylor, Adam   +4 more
core   +4 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

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

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

Expert Consensus on the Management of Hyperpigmentation Disorders in India: A Modified Delphi Study by the Pigmentary Disorders Society

open access: yesInternational Journal of Dermatology, EarlyView.
Delphi‐based expert consensus for diagnosis and management of common hyperpigmentation disorders in Indian dermatology practice, integrating evidence review, iterative voting, and consensus‐driven recommendations. ABSTRACT Hyperpigmentation disorders are prevalent in individuals with skin of color and are associated with considerable psychosocial ...
Rashmi Sarkar   +12 more
wiley   +1 more source

Exogenous ochronosis: the failure of depigmenting creams [PDF]

open access: yes, 2019
Exogenous ochronosis (EO) is an entity that manifests as black-bluish or grayish-brown cutaneous hyperpigmentation, which is a consequence of the deposition of ochronotic pigment with characteristic banana-like morphology between the collagen fibers of ...
Sánchez-Martínez, Eva María   +5 more
core   +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  

Actinic granuloma-like change in exogenous ochronosis: Case report

open access: yes, 1990
Exogenous ochronosis is caused by the longterm application of skin-lightening creams containing hydroquinone. This irreversible disfiguring cosmetic problem assumes epidemic proportions in South African blacks. Mild ochronosis is characterized clinically
Mulligan R.P., Jordaan H.F.
core   +1 more source

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