Results 21 to 30 of about 11,286 (212)

Erythrocytes as Carriers of Therapeutic Enzymes. [PDF]

open access: yes, 2020
Therapeutic enzymes are administered for the treatment of a wide variety of diseases. They exert their effects through binding with a high affinity and specificity to disease-causing substrates to catalyze their conversion to a non-noxious product, to ...
Bax, BE
core   +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.
Dühmke, Eckhart   +4 more
core   +1 more source

Fotossensibilidade amplificada? Relato de porfiria cutânea tarda associada a lúpus eritematoso sistêmico Increased photosensitivity? Case report of porphyria cutanea tarda associated with systemic lupus erythematosus

open access: yesRevista Brasileira de Reumatologia, 2012
A associação de porfiria cutânea tarda (PCT) e lúpus eritematoso sistêmico (LES) é rara. O LES, de fisiopatologia complexa e manifestações clínicas pleomórficas, assemelha-se à PCT pela fotossensibilidade.
Scheila Fritsch   +5 more
doaj   +1 more source

Porphyrias in the Age of Targeted Therapies

open access: yesDiagnostics, 2021
The porphyrias are a group of eight rare genetic disorders, each caused by the deficiency of one of the enzymes in the heme biosynthetic pathway, resulting in the excess accumulation of heme precursors and porphyrins. Depending on the tissue site as well
Angelika L. Erwin, Manisha Balwani
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

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
Buttery JE   +4 more
core   +1 more source

Development and validation of a method for porphyrins quantification using HPLC-UV in urine

open access: yesФармакокинетика и Фармакодинамика, 2022
Porphyrias are the group of orphan diseases, related to pathological disruptions of heme biosynthesis. These diseases are hard to diagnose timely and existing methods lack universality.
D. A. Kildyushkin   +2 more
doaj   +1 more source

Experiences and concerns of patients with recurrent attacks of acute hepatic porphyria: A qualitative study [PDF]

open access: yes, 2016
Background: The acute hepatic porphyrias (AHPs) are rare inborn errors of heme biosynthesis, characterized clinically by life-threatening acute neurovisceral attacks.
Balwani, M   +4 more
core   +1 more source

Kidney Involvement in Acute Hepatic Porphyrias: Pathophysiology and Diagnostic Implications

open access: yesDiagnostics, 2021
Porphyrias are a group of rare disorders originating from an enzyme dysfunction in the pathway of heme biosynthesis. Depending on the specific enzyme involved, porphyrias manifest under drastically different clinical pictures.
Andrea Ricci   +4 more
doaj   +1 more source

Spot urine porphyrins/creatinine ratio profile of healthy Brazilian individuals adjusted for personal habits [PDF]

open access: yes, 2009
Changes in urinary porphyrin excretion may be the result of hereditary causes and/or from environmental or occupational exposure. The objective of this study was to measure the amount of some porphyrins in spot urine samples obtained from volunteers ...
ALVES, A.N.L.   +3 more
core   +2 more sources

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