Results 21 to 30 of about 1,465,884 (208)

Acute Intermittent Porphyria: Flaccid Quadriplegia and Encephalopathy due to Posterior Reversible Encephalopathy Syndrome (PRES) [PDF]

open access: yesLiaquat National Journal of Primary Care
A deficiency of the enzyme HMB Hydroxymethylbilane synthase function, also known as porphobilinogen deaminase, leads to the emergence of acute intermittent porphyria (AIP). AIP is an uncommon form of hepatic porphyria inherited in an autosomal dominant
Saba Zaidi   +2 more
doaj   +1 more source

Clinically Important Features of Porphyrin and Heme Metabolism and the Porphyrias

open access: yesMetabolites, 2014
Heme, like chlorophyll, is a primordial molecule and is one of the fundamental pigments of life. Disorders of normal heme synthesis may cause human diseases, including certain anemias (X-linked sideroblastic anemias) and porphyrias.
Siddesh Besur   +3 more
doaj   +1 more source

Urinary porphyrin excretion in hepatitis C infection [PDF]

open access: yes, 1999
A high prevalence of hepatitis C virus infection in porphyria cutanea tarda in some populations suggests a close link between viral hepatitis and alteration of porphyrin metabolism.
Jacob, Karl   +2 more
core   +1 more source

Variegate porphyria : molecular aspects of variegate porphyria in South Africa and their biochemical and clinical consequences [PDF]

open access: yes, 2000
Bibliography: p. 215-241.Variegate porphyria (VP) is the clinical disorder associated with a deficiency of the haemsynthesising enzyme protoporphyrinogen oxidase (PPO). VP is one of the commonest monogenic inherited disorders in South Africa.
Hift, R J
core   +1 more source

Evaluation of a commercially available rapid urinary porphobilinogen test [PDF]

open access: yes, 2011
Background: Demonstration of substantially increased urinary excretion of porphobilinogen is the cornerstone of diagnosing acute porphyria crisis. Because porphobilinogen testing is not implemented on clinical chemistry analysers, respective analyses are
Michael Vogeser   +3 more
core   +1 more source

First Report of a Low-Frequency Mosaic Mutation in the Hydroxymethylbilane Synthase Gene Causing Acute Intermittent Porphyria

open access: yesLife, 2023
Acute porphyrias are a group of monogenetic inborn errors of heme biosynthesis, characterized by acute and potentially life-threatening neurovisceral attacks upon exposure to certain triggering factors.
Adrian Belosevic   +10 more
doaj   +1 more source

The acute hepatic porphyrias [PDF]

open access: yesTranslational Gastroenterology and Hepatology, 2021
The acute hepatic porphyrias (AHP) are a group of four inherited diseases of heme biosynthesis. They present with similar severe, episodic, acute neurovisceral symptoms due to abnormally elevated levels of porphyrin precursors delta-aminolevulinic acid (ALA).
openaire   +2 more sources

19-year-old female with abdominal pain [PDF]

open access: yesRomanian Journal of Neurology, 2013
Porphyria is a group of at least 8 diseases that differ greatly between them. Common feature of these diseases is the accumulation in the body of porphyrins or porphyrin precursors, due to defects of specific enzymes in the biosynthesis of heme.
Ioan Buraga, Adrian-Florin Dobrescu
doaj   +1 more source

Acute Intermittent Porphyria in Childhood Presenting with Hypertensive Emergency and Posterior Reversible Encephalopathy Syndrome

open access: yesJournal of Pediatric Critical Care, 2016
Acute intermittent porphyria is an inherited metabolic disease due to deficiency of the enzyme porphobilinogen deaminase that can affect the autonomic, peripheral and central nervous system.
Rishab Bharadwaj   +2 more
doaj   +1 more source

Porphyrias associated with malignant tumors: Results of treatment with ionizing irradiation [PDF]

open access: yes, 2001
Background: Porphyrin metabolism disorders, known as porphyria, represent inherited or acquired diseases. The development of porphyria due to light sensibility occurs especially with exposure to wavelengths in the range of 300-700 nm.
Panzer, M.   +9 more
core   +1 more source

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