Results 31 to 40 of about 2,687,981 (207)
The role of melanin production in the survival of Vibrio cholerae in the marine environment [PDF]
, 2006 Word processed copy.Includes bibliographical references (p. 141-165).The marine bacterium Vibrio cholerae produces pyomelanin through the catabolism of L-tyrosine to homogentisic acid.
Paul, Lynthia Vivienne
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An Uncommon Clinical Presentation of a Rare Disease-Alkaptonuria: Case Report
Pakistan Armed Forces Medical Journal, 2023 Palmoplantar pigmentation is a rare clinical presentation of alkaptonuria, a rare inborn error of phenylalanine and tyrosine metabolism. Alkaptonuria occurs owing to a deficiency of an enzyme homogentisic acid oxidase inherited as an autosomal ...
Umar Abdul Ali Qureshi +1 more
doaj +1 more source
The formation of homogentisate in the biosynthesis of tocopherol and plastoquinone in spinach chloroplasts [PDF]
, 1982 Homogentisate is the precursor in the biosynthesis of -tocopherol and plastoquinone-9 in chloroplasts. It is formed of 4-hydroxyphenylpyruvate of the shikimate pathway by the 4-hydroxyphenylpyruvate dioxygenase.
Soll, Jürgen +5 more
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An Unusual Presentation of Ochronosis with Palmar Pigmentation [PDF]
Journal of Clinical and Diagnostic Research, 2019 Ochronosis is the deposition of homogentisic acid in connective tissues resulting in bluish black discolouration. Hereby a case of ochronosis over the palmar surface of hand in 41-year-old male patient has been reported.
Mohan Rao Nandam +4 more
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Urinary Homogentisic Acid in Alkaptonuric and Healthy Children [PDF]
Clinical Chemistry and Laboratory Medicine, 2003 To detect and follow-up the metabolic status of patients with alkaptonuria (AKU), urinary homogentisic acid (HGA) was measured by gas chromatography. These results were close to values we obtained by colorimetric method (linearity: upto 700 mg/l, detection limit: 1 mg/l, within-run imprecision (CV): 1.2% at 100 mg/l HGA, 4.9% at 10 mg/l, between-run CV:
Anna V, Oláh +5 more
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Medical Journal of Dr. D.Y. Patil University, 2015 Alkaptonuria is a rare, autosomal-recessive disorder of phenylalanine/tyrosine metabolism due to congenital deficiency of the enzyme homogentisic acid oxidase. Herein, we are reporting a classical case of alkaptonuria with extensive skin pigmentation and
Swapna S Khatu +4 more
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Knee ochronotic arthropathy and arthroscopic findings
Acta Orthopaedica et Traumatologica Turcica, 2020 Ochronotic arthropathy is a rare condition found in patients with alkaptonuria which is a hereditary metabolic disease associated with deposition of homogentisic acid derivatives in the articular cartilage, menisci, ligaments, and connective tissues due ...
Cemal Kural +4 more
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Homogentisic acid: a phenolic acid as a marker of strowberry-tree (Arbutus unedo) honey
, 1999 Analysis of organic acids in strawberry-tree (Arbutus unedo) honey showed the presence of an unknown acid as the main constituent. This compound was isolated and identified as homogentisic acid (2,5-dihydroxyphenylacetic acid) by MS and NMR techniques ...
Guillou C +13 more
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Indian Journal of Dermatology, 2011 A case of alkaptonuria, a rare disorder with autosomal recessive inheritance, is reported here. The patient had palmar pigmentation in addition to the usual features of alkaptonuria.
G K Tharini +4 more
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Alkaptonuria: A rare cause of recurrent severe back pain in the emergency department [PDF]
Journal of Emergency Medicine, Trauma and Acute Care, 2012 We report a 45 year-old male patient who presented to the emergency department of Hamad General Hospital with recurrent severe low back pain. Clinical examination revealed characteristic deposition of blue-brownish pigment in the sclera and ear.
MSeidahmed +2 more
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