Results 1 to 10 of about 7,531,846 (135)

Recognized and Emerging Features of Erythropoietic and X-Linked Protoporphyria [PDF]

Diagnostics, 2022
Erythropoietic protoporphyria (EPP) and X-linked protoporphyria (XLP) are inherited disorders resulting from defects in two different enzymes of the heme biosynthetic pathway, i.e., ferrochelatase (FECH) and delta-aminolevulinic acid synthase-2 (ALAS2 ...
Elena Di Pierro, Francesca Granata, Michele De Canio, Mariateresa Rossi, Andrea Ricci, Matteo Marcacci, Giacomo De Luca, Luisa Sarno, Luca Barbieri, Paolo Ventura, Giovanna Graziadei   +10 more
doaj   +10 more sources

A pilot study of oral iron therapy in erythropoietic protoporphyria and X-linked protoporphyria [PDF]

Molecular Genetics and Metabolism Reports, 2022
The use of iron supplementation for anemia in erythropoietic protoporphyria (EPP) is controversial with both benefit and deterioration reported in single case reports. There is no systematic study to evaluate the benefits or risks of iron supplementation
Manisha Balwani, Hetanshi Naik, Jessica R. Overbey, Herbert L. Bonkovsky, D. Montgomery Bissell, Bruce Wang, John D. Phillips, Robert J. Desnick, Karl E. Anderson   +8 more
doaj   +10 more sources

Illuminating Dersimelagon: A Novel Agent in the Treatment of Erythropoietic Protoporphyria and X-Linked Protoporphyria [PDF]

Pharmaceuticals, 2023
Erythropoietic protoporphyria (EPP) is a genetic disorder stemming from reduced ferrochelatase expression, the final enzyme in the pathway of heme biosynthesis.
Katelyn E. Madigan, Sean R. Rudnick, Matthew A. Agnew, Numra Urooj, Herbert L. Bonkovsky   +4 more
doaj   +5 more sources

Evaluating quality of life tools in North American patients with erythropoietic protoporphyria and X‐linked protoporphyria [PDF]

JIMD Reports, 2019
Background Erythropoietic protoporphyria (EPP) and X‐linked Protoporphyria (XLP) are rare photodermatoses presenting with severe phototoxicity. Although anecdotally, providers who treat EPP patients acknowledge their life‐altering effects, tools that ...
Hetanshi Naik, Jessica R. Overbey, Robert J. Desnick, Karl E. Anderson, D. Montgomery Bissell, Joseph Bloomer, Herbert L. Bonkovsky, John D. Phillips, Bruce Wang, Ashwani Singal, Manisha Balwani   +10 more
doaj   +9 more sources

How I Treat Erythropoietic Protoporphyria and X-Linked Protoporphyria

Blood, 2023
Erythropoietic protoporphyria (EPP) is an inherited cutaneous porphyria caused by reduced expression of ferrochelatase, the enzyme that catalyzes the final step in heme biosynthesis. The resultant accumulation of protoporphyrin IX leads to severe painful cutaneous photosensitivity, as well as potentially life-threatening liver disease in a small ...
Rebecca K Leaf, Amy K Dickey
exaly   +5 more sources

X-Chromosomal Inactivation Directly Influences the Phenotypic Manifestation of X-Linked Protoporphyria [PDF]

Clinical Genetics, 2016
X‐linked protoporphyria (XLP), a rare erythropoietic porphyria, results from terminal exon gain‐of‐function mutations in the ALAS2 gene causing increased ALAS2 activity and markedly increased erythrocyte protoporphyrin levels. Patients present with severe cutaneous photosensitivity and may develop liver dysfunction.
Robert J. Desnick, Maria Domenica Cappellini, Silvia Fustinoni   +2 more
exaly   +6 more sources

Evidence-based consensus guidelines for the diagnosis and management of erythropoietic protoporphyria and X-linked protoporphyria. [PDF]

J Am Acad Dermatol, 2023
Erythropoietic protoporphyria and X-linked protoporphyria are rare genetic photodermatoses. Limited expertise with these disorders among physicians leads to diagnostic delays. Here, we present evidence-based consensus guidelines for the diagnosis, monitoring, and management of erythropoietic protoporphyria and X-linked protoporphyria.
Dickey AK, Naik H, Keel SB, Levy C, Beaven SW, Elmariah SB, Erwin AL, Goddu RJ, Hedstrom K, Leaf RK, Kazamel M, Mazepa M, Philpotts LL, Quigley J, Raef H, Rudnick SR, Saberi B, Thapar M, Ungar J, Wang B, Balwani M, Porphyrias Consortium of the Rare Diseases Clinical Research Network.   +21 more
europepmc   +11 more sources

Loss-of-Function Ferrochelatase and Gain-of-Function Erythroid-Specific 5-Aminolevulinate Synthase Mutations Causing Erythropoietic Protoporphyria and X-Linked Protoporphyria in North American Patients Reveal Novel Mutations and a High Prevalence of X-Linked Protoporphyria [PDF]

Molecular Medicine, 2013
Erythropoietic protoporphyria (EPP) and X-linked protoporphyria (XLP) are inborn errors of heme biosynthesis with the same phenotype but resulting from autosomal recessive loss-of-function mutations in the ferrochelatase (FECH) gene and gain-of-function ...
Manisha Balwani, Dana Doheny, David F. Bishop, Irina Nazarenko, Makiko Yasuda, Harry A. Dailey, Karl E. Anderson, D. Montgomery Bissell, Joseph Bloomer, Herbert L. Bonkovsky, John D. Phillips, Lawrence Liu, Robert J. Desnick, The Porphyrias Consortium of the National Institutes of Health Rare Diseases Clinical Research Network   +13 more
doaj   +6 more sources

Self‐Reported Liver Disease and the Burden of Erythropoietic Protoporphyria [PDF]

JIMD Reports
Erythropoietic protoporphyria (EPP) and X‐linked protoporphyria are metabolic disorders that cause skin phototoxicity and potential liver damage. We compared symptoms and impacts of phototoxic reactions, health‐related quality of life, and healthcare ...
Hetanshi Naik, Kristen Wheeden, Hilary H. Colwell, Susan D. Mathias, Chelsea Norregaard, Melanie Chin, William Savage, Manisha Balwani   +7 more
doaj   +3 more sources

Long-term iron supplementation in four patients with X-linked erythropoietic protoporphyria: associations with serum proteins and erythrocyte protoporphyrin levels—a single-centre retrospective study [PDF]

Frontiers in Molecular Biosciences
IntroductionX-linked erythropoietic protoporphyria (XLEPP) is an ultra-rare inborn error of the heme biosynthesis characterised by the accumulation of large amounts of protoporphyrin IX (PPIX) and zinc-protoporphyrin in the erythrocytes. PPIX absorbs the
Anna-Elisabeth Minder, Anna-Elisabeth Minder, Francesca Granata, Franziska van Breemen, Franziska van Breemen, Xiaoye Schneider-Yin, Xiaoye Schneider-Yin, Elisabeth I. Minder, Elisabeth I. Minder, Lanja Saleh, Lanja Saleh, Jasmin Barman-Aksözen, Jasmin Barman-Aksözen, Jasmin Barman-Aksözen, Jasmin Barman-Aksözen   +14 more
doaj   +4 more sources