Results 101 to 110 of about 5,440 (220)

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

Cytotoxic activity of strawberry tree (Arbutus unedo L.) honey, its extract, and homogentisic acid on CAL 27, HepG2, and Caco-2 cell lines. [PDF]

open access: yesArh Hig Rada Toksikol, 2022
Jurič A   +5 more
europepmc   +1 more source

Endogenous ochronosis with keratoelastoidosis marginalis

open access: yesIndian Journal of Dermatopathology and Diagnostic Dermatology, 2019
Endogenous ochronosis is a manifestation of alkaptonuria, a rare metabolic disease due to homogentisic acid oxidase deficiency. Darkened urine and arthropathy are the other two components that complete the triad of alkaptonuria. Pigmentation of skin, the
R Mythreyi   +4 more
doaj   +1 more source

Homogentisic acid induces aggregation and fibrillation of amyloidogenic proteins

open access: yesBiochimica et Biophysica Acta (BBA) - General Subjects, 2017
Alkaptonuria (AKU) is an ultra-rare inborn error of metabolism characterized by homogentisic acid (HGA) accumulation due to a deficient activity of the homogentisate 1.2-dioxygenase (HGD) enzyme. This leads to the production of dark pigments that are deposited onto connective tissues, a condition named 'ochronosis' and whose mechanisms are not ...
BRACONI, DANIELA   +8 more
openaire   +3 more sources

Cytotoxicity of Active Ingredients Extracted from Plants of the Brazilian “Cerrado”

open access: yesNatural Product Communications, 2011
Cytotoxicity assays are needed for the screening of natural products with potential anti-inflammatory. The purpose of this study was to compare the basal cytotoxicity of active ingredients extracted from plants of the Brazilian “cerrado”.
Veronica CG Soares   +9 more
doaj   +1 more source

Arthroplasty for the treatment of joint degeneration caused by ochronosis in two cases

open access: yesActa Orthopaedica et Traumatologica Turcica, 2020
Ochronosis is a rare metabolic disease caused by the deficiency of the homogentisic acid oxidase enzyme. With increasing age, accumulation of pigment deposits of homogentisic acid in the joint cartilage results in ochronotic osteoarthritis.
Mehmet Kefeli   +3 more
doaj  

Assessment of mass spectrometric indicators of organic acids metabolism in children with sarcopenia on the background of protein-energy insufficiency. Pilot study

open access: yesActa Biomedica Scientifica
Introduction. The geriatric problem of sarcopenia is relevant for both therapists and pediatricians. Secondary sarcopenia is diagnosed at any age in severe diseases, as well as muscle loss and muscle strength due to protein-energy malnutrition (PEM) or ...
V. P. Novikova   +5 more
doaj   +1 more source

The oxidation of ascorbic acid and its reduction in vitro and in vivo [PDF]

open access: yes, 1937
The outstanding chemical property of ascorbic acid (vitamin C) is that it is a reducing agent. The suggestion is obvious that its physiological function may be associated with this property, and, if it is oxidized reversibly, with its behavior in an ...
Borsook, Henry   +3 more
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