Skip to main content
Top
Published in: Journal of Inherited Metabolic Disease 3/2017

01-05-2017 | Original Article

Disturbed iron metabolism in erythropoietic protoporphyria and association of GDF15 and gender with disease severity

Authors: Jasmin Barman-Aksoezen, Domenico Girelli, Caterina Aurizi, Xiaoye Schneider-Yin, Natascia Campostrini, Luca Barbieri, Elisabeth I. Minder, Gianfranco Biolcati

Published in: Journal of Inherited Metabolic Disease | Issue 3/2017

Login to get access

Abstract

Patients with erythropoietic protoporphyria (EPP) have reduced activity of the enzyme ferrochelatase that catalyzes the insertion of iron into protoporphyrin IX (PPIX) to form heme. As the result of ferrochelatase deficiency, PPIX accumulates and causes severe photosensitivity. Among different patients, the concentration of PPIX varies considerably. In addition to photosensitivity, patients frequently exhibit low serum iron and a microcytic hypochromic anemia. The aims of this study were to (1) search for factors related to PPIX concentration in EPP, and (2) characterize anemia in EPP, i.e., whether it is the result of an absolute iron deficiency or the anemia of chronic disease (ACD). Blood samples from 67 EPP patients (51 Italian and 16 Swiss) and 21 healthy volunteers were analyzed. EPP patients had lower ferritin (p = 0.021) and hepcidin (p = 0.031) concentrations and higher zinc–protoporphyrin (p < 0.0001) and soluble-transferrin-receptor (p = 0.0007) concentrations compared with controls. This indicated that anemia in EPP resulted from an absolute iron deficiency. Among EPP patients, PPIX concentrations correlated with both growth differentiation factor (GDF) 15 (p = 0.012) and male gender (p = 0.015). Among a subgroup of patients who were iron replete, hemoglobin levels were normal, which suggested that iron but not ferrochelatase is the limiting factor in heme synthesis of individuals with EPP.
Literature
go back to reference Allen J, Backstrom KR, Cooper JA, Cooper MC, Detwiler TC, Essex DW, Fritz RP, Means RT, Meier PB, Pearlman SR, Roitman-Johnson B, Seligman A (1998) Measurement of soluble transferrin receptor in serum of healthy adults. Clinical Chemistry 44.1: 35-39 Allen J, Backstrom KR, Cooper JA, Cooper MC, Detwiler TC, Essex DW, Fritz RP, Means RT, Meier PB, Pearlman SR, Roitman-Johnson B, Seligman A (1998) Measurement of soluble transferrin receptor in serum of healthy adults. Clinical Chemistry 44.1: 35-39
go back to reference Balwani M, Bloomer J, Desnick R (2014) Erythropoietic protoporphyria, autosomal recessive. In: Pagon RR, Adam MP, Ardinger HH, Wallace SE, Amemiya A, Bean JLH, Ledbetter N, Mefford HC, Smith RJH, Stephens K (eds) GeneReviews. University of Washington, Seattle Balwani M, Bloomer J, Desnick R (2014) Erythropoietic protoporphyria, autosomal recessive. In: Pagon RR, Adam MP, Ardinger HH, Wallace SE, Amemiya A, Bean JLH, Ledbetter N, Mefford HC, Smith RJH, Stephens K (eds) GeneReviews. University of Washington, Seattle
go back to reference Barman-Aksozen J, Beguin C, Dogar AM, Schneider-Yin X, Minder EI (2013) Iron availability modulates aberrant splicing of ferrochelatase through the iron- and 2-oxoglutarate dependent dioxygenase Jmjd6 and U2AF(65.). Blood Cells Mol Dis 51:151–161CrossRefPubMed Barman-Aksozen J, Beguin C, Dogar AM, Schneider-Yin X, Minder EI (2013) Iron availability modulates aberrant splicing of ferrochelatase through the iron- and 2-oxoglutarate dependent dioxygenase Jmjd6 and U2AF(65.). Blood Cells Mol Dis 51:151–161CrossRefPubMed
go back to reference Barman-Aksozen J, Minder EI, Schubiger C, Biolcati G, Schneider-Yin X (2015) In ferrochelatase-deficient protoporphyria patients, ALAS2 expression is enhanced and erythrocytic protoporphyrin concentration correlates with iron availability. Blood Cells Mol Dis 54:71–77CrossRefPubMed Barman-Aksozen J, Minder EI, Schubiger C, Biolcati G, Schneider-Yin X (2015) In ferrochelatase-deficient protoporphyria patients, ALAS2 expression is enhanced and erythrocytic protoporphyrin concentration correlates with iron availability. Blood Cells Mol Dis 54:71–77CrossRefPubMed
go back to reference Bossi K, Lee J, Schmeltzer P, Holburton E, Groseclose G, Besur S, Hwang S, Bonkovsky HL (2015) Homeostasis of iron and hepcidin in erythropoietic protoporphyria. Eur J Clin Investig 45:1032–1041CrossRef Bossi K, Lee J, Schmeltzer P, Holburton E, Groseclose G, Besur S, Hwang S, Bonkovsky HL (2015) Homeostasis of iron and hepcidin in erythropoietic protoporphyria. Eur J Clin Investig 45:1032–1041CrossRef
go back to reference Campostrini N, Castagna A, Zaninotto F, Bedogna V, Tessitore N, Poli A, Martinelli N, Lupo A, Olivieri O, Girelli D (2010) Evaluation of hepcidin isoforms in hemodialysis patients by a proteomic approach based on SELDI-TOF MS. J Biomed Biotechnol 2010:329646CrossRefPubMedPubMedCentral Campostrini N, Castagna A, Zaninotto F, Bedogna V, Tessitore N, Poli A, Martinelli N, Lupo A, Olivieri O, Girelli D (2010) Evaluation of hepcidin isoforms in hemodialysis patients by a proteomic approach based on SELDI-TOF MS. J Biomed Biotechnol 2010:329646CrossRefPubMedPubMedCentral
go back to reference Cook JD, Finch CA (1979) Assessing iron status of a population. Am J Clin Nutr 32:2115–2119PubMed Cook JD, Finch CA (1979) Assessing iron status of a population. Am J Clin Nutr 32:2115–2119PubMed
go back to reference Delaby C, Lyoumi S, Ducamp S, Martin-Schmitt C, Gouya L, Deybach JC, Beaumont C, Puy H (2009) Excessive erythrocyte PPIX influences the hematologic status and iron metabolism in patients with dominant erythropoietic protoporphyria. Cell Mol Biol (Noisy-le-grand) 55:45–52 Delaby C, Lyoumi S, Ducamp S, Martin-Schmitt C, Gouya L, Deybach JC, Beaumont C, Puy H (2009) Excessive erythrocyte PPIX influences the hematologic status and iron metabolism in patients with dominant erythropoietic protoporphyria. Cell Mol Biol (Noisy-le-grand) 55:45–52
go back to reference Eyster E, Mayer K, McKenzie S (1968) Traumatic hemolysis with iron deficiency anemia in patients with aortic valve lesions. Ann Intern Med 68:995–1004CrossRefPubMed Eyster E, Mayer K, McKenzie S (1968) Traumatic hemolysis with iron deficiency anemia in patients with aortic valve lesions. Ann Intern Med 68:995–1004CrossRefPubMed
go back to reference Fleming RE, Sly WS (2001) Hepcidin: a putative iron-regulatory hormone relevant to hereditary hemochromatosis and the anemia of chronic disease. Proc Natl Acad Sci U S A 98:8160–8162CrossRefPubMedPubMedCentral Fleming RE, Sly WS (2001) Hepcidin: a putative iron-regulatory hormone relevant to hereditary hemochromatosis and the anemia of chronic disease. Proc Natl Acad Sci U S A 98:8160–8162CrossRefPubMedPubMedCentral
go back to reference Goodnough LT (2012) Iron deficiency syndromes and iron-restricted erythropoiesis (CME). Transfusion 52:1584–1592CrossRefPubMed Goodnough LT (2012) Iron deficiency syndromes and iron-restricted erythropoiesis (CME). Transfusion 52:1584–1592CrossRefPubMed
go back to reference Gouya L, Puy H, Robreau AM, Bourgeois M, Lamoril J, Da Silva V, Grandchamp B, Deybach JC (2002) The penetrance of dominant erythropoietic protoporphyria is modulated by expression of wildtype FECH. Nat Genet 30:27–28CrossRefPubMed Gouya L, Puy H, Robreau AM, Bourgeois M, Lamoril J, Da Silva V, Grandchamp B, Deybach JC (2002) The penetrance of dominant erythropoietic protoporphyria is modulated by expression of wildtype FECH. Nat Genet 30:27–28CrossRefPubMed
go back to reference Gulec S, Anderson GJ, Collins JF (2014) Mechanistic and regulatory aspects of intestinal iron absorption. Am J Physiol Gastrointest Liver Physiol 307:G397–G409CrossRefPubMedPubMedCentral Gulec S, Anderson GJ, Collins JF (2014) Mechanistic and regulatory aspects of intestinal iron absorption. Am J Physiol Gastrointest Liver Physiol 307:G397–G409CrossRefPubMedPubMedCentral
go back to reference Han AP, Fleming MD, Chen JJ (2005) Heme-regulated eIF2alpha kinase modifies the phenotypic severity of murine models of erythropoietic protoporphyria and beta-thalassemia. J Clin Invest 115:1562–1570CrossRefPubMedPubMedCentral Han AP, Fleming MD, Chen JJ (2005) Heme-regulated eIF2alpha kinase modifies the phenotypic severity of murine models of erythropoietic protoporphyria and beta-thalassemia. J Clin Invest 115:1562–1570CrossRefPubMedPubMedCentral
go back to reference Holme SA, Worwood M, Anstey AV, Elder GH, Badminton MN (2007) Erythropoiesis and iron metabolism in dominant erythropoietic protoporphyria. Blood 110:4108–4110CrossRefPubMed Holme SA, Worwood M, Anstey AV, Elder GH, Badminton MN (2007) Erythropoiesis and iron metabolism in dominant erythropoietic protoporphyria. Blood 110:4108–4110CrossRefPubMed
go back to reference Holme SA, Whatley SD, Roberts AG, Anstey AV, Elder GH, Ead RD, Stewart MF, Farr PM, Lewis HM, Davies N, White MI, Ackroyd RS, Badminton MN (2009) Seasonal palmar keratoderma in erythropoietic protoporphyria indicates autosomal recessive inheritance. J Investig Dermatol 129:599–605CrossRefPubMed Holme SA, Whatley SD, Roberts AG, Anstey AV, Elder GH, Ead RD, Stewart MF, Farr PM, Lewis HM, Davies N, White MI, Ackroyd RS, Badminton MN (2009) Seasonal palmar keratoderma in erythropoietic protoporphyria indicates autosomal recessive inheritance. J Investig Dermatol 129:599–605CrossRefPubMed
go back to reference Hsiao EC, Koniaris LG, Zimmers-Koniaris T, Sebald SM, Huynh TV, Lee SJ (2000) Characterization of growth-differentiation factor 15, a transforming growth factor beta superfamily member induced following liver injury. Mol Cell Biol 20:3742–3751CrossRefPubMedPubMedCentral Hsiao EC, Koniaris LG, Zimmers-Koniaris T, Sebald SM, Huynh TV, Lee SJ (2000) Characterization of growth-differentiation factor 15, a transforming growth factor beta superfamily member induced following liver injury. Mol Cell Biol 20:3742–3751CrossRefPubMedPubMedCentral
go back to reference Kempf T, Zarbock A, Widera C, Butz S, Stadtmann A, Rossaint J, Bolomini-Vittori M, Korf-Klingebiel M, Napp LC, Hansen B, Kanwischer A, Bavendiek U, Beutel G, Hapke M, Sauer MG, Laudanna C, Hogg N, Vestweber D, Wollert KC (2011) GDF-15 is an inhibitor of leukocyte integrin activation required for survival after myocardial infarction in mice. Nat Med 17:581–588CrossRefPubMed Kempf T, Zarbock A, Widera C, Butz S, Stadtmann A, Rossaint J, Bolomini-Vittori M, Korf-Klingebiel M, Napp LC, Hansen B, Kanwischer A, Bavendiek U, Beutel G, Hapke M, Sauer MG, Laudanna C, Hogg N, Vestweber D, Wollert KC (2011) GDF-15 is an inhibitor of leukocyte integrin activation required for survival after myocardial infarction in mice. Nat Med 17:581–588CrossRefPubMed
go back to reference Kirkwood B, Sterne J (2003) Essential medical statistics, 2nd edn. Wiley, Oxford Kirkwood B, Sterne J (2003) Essential medical statistics, 2nd edn. Wiley, Oxford
go back to reference Koniaris LG (2003) Induction of MIC-1/growth differentiation factor-15 following bile duct injury. J Gastrointest Surg 7:901–905CrossRefPubMed Koniaris LG (2003) Induction of MIC-1/growth differentiation factor-15 following bile duct injury. J Gastrointest Surg 7:901–905CrossRefPubMed
go back to reference Lyoumi S, Abitbol M, Andrieu V, Henin D, Robert E, Schmitt C, Gouya L, de Verneuil H, Deybach JC, Montagutelli X, Beaumont C, Puy H (2007) Increased plasma transferrin, altered body iron distribution, and microcytic hypochromic anemia in ferrochelatase-deficient mice. Blood 109:811–818CrossRefPubMed Lyoumi S, Abitbol M, Andrieu V, Henin D, Robert E, Schmitt C, Gouya L, de Verneuil H, Deybach JC, Montagutelli X, Beaumont C, Puy H (2007) Increased plasma transferrin, altered body iron distribution, and microcytic hypochromic anemia in ferrochelatase-deficient mice. Blood 109:811–818CrossRefPubMed
go back to reference McClements BM, Bingham A, Callender ME, Trimble ER (1990) Erythropoietic protoporphyria and iron therapy. Br J Dermatol 122:423–424CrossRefPubMed McClements BM, Bingham A, Callender ME, Trimble ER (1990) Erythropoietic protoporphyria and iron therapy. Br J Dermatol 122:423–424CrossRefPubMed
go back to reference Milligan A, Graham-Brown RA, Sarkany I, Baker H (1988) Erythropoietic protoporphyria exacerbated by oral iron therapy. Br J Dermatol 119:63–66CrossRefPubMed Milligan A, Graham-Brown RA, Sarkany I, Baker H (1988) Erythropoietic protoporphyria exacerbated by oral iron therapy. Br J Dermatol 119:63–66CrossRefPubMed
go back to reference Minder EI, Schneider-Yin X (2008) Porphyrins, porphobilinogen, and δ–aminolevulinic acid. In: Blau N, Duran M, Gibson KM (eds) Laboratory guide to the methods in biochemical genetics. Springer, Berlin, pp 751–780CrossRef Minder EI, Schneider-Yin X (2008) Porphyrins, porphobilinogen, and δ–aminolevulinic acid. In: Blau N, Duran M, Gibson KM (eds) Laboratory guide to the methods in biochemical genetics. Springer, Berlin, pp 751–780CrossRef
go back to reference Minder EI, Schneider-Yin X, Mamet R, Horev L, Neuenschwander S, Baumer A, Austerlitz F, Puy H, Schoenfeld N (2010) A homoallelic FECH mutation in a patient with both erythropoietic protoporphyria and palmar keratoderma. J Eur Acad Dermatol Venereol 24:1349–1353CrossRefPubMed Minder EI, Schneider-Yin X, Mamet R, Horev L, Neuenschwander S, Baumer A, Austerlitz F, Puy H, Schoenfeld N (2010) A homoallelic FECH mutation in a patient with both erythropoietic protoporphyria and palmar keratoderma. J Eur Acad Dermatol Venereol 24:1349–1353CrossRefPubMed
go back to reference Moore AG, Brown DA, Fairlie WD, Bauskin AR, Brown PK, Munier ML, Russell PK, Salamonsen LA, Wallace EM, Breit SN (2000) The transforming growth factor-ss superfamily cytokine macrophage inhibitory cytokine-1 is present in high concentrations in the serum of pregnant women. J Clin Endocrinol Metab 85:4781–4788PubMed Moore AG, Brown DA, Fairlie WD, Bauskin AR, Brown PK, Munier ML, Russell PK, Salamonsen LA, Wallace EM, Breit SN (2000) The transforming growth factor-ss superfamily cytokine macrophage inhibitory cytokine-1 is present in high concentrations in the serum of pregnant women. J Clin Endocrinol Metab 85:4781–4788PubMed
go back to reference Murphy WG (2014) The sex difference in haemoglobin levels in adults—mechanisms, causes, and consequences. Blood Rev 28:41–47CrossRefPubMed Murphy WG (2014) The sex difference in haemoglobin levels in adults—mechanisms, causes, and consequences. Blood Rev 28:41–47CrossRefPubMed
go back to reference Musallam KM, Taher AT, Duca L, Cesaretti C, Halawi R, Cappellini MD (2011) Levels of growth differentiation factor-15 are high and correlate with clinical severity in transfusion-independent patients with beta thalassemia intermedia. Blood Cells Mol Dis 47:232–234CrossRefPubMed Musallam KM, Taher AT, Duca L, Cesaretti C, Halawi R, Cappellini MD (2011) Levels of growth differentiation factor-15 are high and correlate with clinical severity in transfusion-independent patients with beta thalassemia intermedia. Blood Cells Mol Dis 47:232–234CrossRefPubMed
go back to reference Nicolas G, Bennoun M, Devaux I, Beaumont C, Grandchamp B, Kahn A, Vaulont S (2001) Lack of hepcidin gene expression and severe tissue iron overload in upstream stimulatory factor 2 (USF2) knockout mice. Proc Natl Acad Sci U S A 98:8780–8785CrossRefPubMedPubMedCentral Nicolas G, Bennoun M, Devaux I, Beaumont C, Grandchamp B, Kahn A, Vaulont S (2001) Lack of hepcidin gene expression and severe tissue iron overload in upstream stimulatory factor 2 (USF2) knockout mice. Proc Natl Acad Sci U S A 98:8780–8785CrossRefPubMedPubMedCentral
go back to reference Osada M, Park HL, Park MJ, Liu JW, Wu G, Trink B, Sidransky D (2007) A p53-type response element in the GDF15 promoter confers high specificity for p53 activation. Biochem Biophys Res Commun 354:913–918CrossRefPubMedPubMedCentral Osada M, Park HL, Park MJ, Liu JW, Wu G, Trink B, Sidransky D (2007) A p53-type response element in the GDF15 promoter confers high specificity for p53 activation. Biochem Biophys Res Commun 354:913–918CrossRefPubMedPubMedCentral
go back to reference Schneider-Yin X, Minder EI (2013) In: Ferreira GC (ed) Erythropoietic protoporphyria and X-linked dominant protoporphyria. World Scientific Publishing Company, Singapore, pp 299–328 Schneider-Yin X, Minder EI (2013) In: Ferreira GC (ed) Erythropoietic protoporphyria and X-linked dominant protoporphyria. World Scientific Publishing Company, Singapore, pp 299–328
go back to reference Schneider-Yin X, Harms J, Minder EI (2009) Porphyria in Switzerland, 15 years experience. Swiss Med Wkly 139:198–206PubMed Schneider-Yin X, Harms J, Minder EI (2009) Porphyria in Switzerland, 15 years experience. Swiss Med Wkly 139:198–206PubMed
go back to reference Sears DA, Anderson PR, Foy AL, Williams HL, Crosby WH (1966) Urinary iron excretion and renal metabolism of hemoglobin in hemolytic diseases. Blood 28:708–725PubMed Sears DA, Anderson PR, Foy AL, Williams HL, Crosby WH (1966) Urinary iron excretion and renal metabolism of hemoglobin in hemolytic diseases. Blood 28:708–725PubMed
go back to reference Simpson RJ, McKie AT (2009) Regulation of intestinal iron absorption: the mucosa takes control? Cell Metab 10:84–87CrossRefPubMed Simpson RJ, McKie AT (2009) Regulation of intestinal iron absorption: the mucosa takes control? Cell Metab 10:84–87CrossRefPubMed
go back to reference Skikne BS, Flowers CH, Cook JD (1990) Serum transferrin receptor: a quantitative measure of tissue iron deficiency. Blood 75:1870–1876PubMed Skikne BS, Flowers CH, Cook JD (1990) Serum transferrin receptor: a quantitative measure of tissue iron deficiency. Blood 75:1870–1876PubMed
go back to reference Tanno T, Bhanu NV, Oneal PA, Goh SH, Staker P, Lee YT, Moroney JW, Reed CH, Luban NL, Wang RH, Eling TE, Childs R, Ganz T, Leitman SF, Fucharoen S, Miller JL (2007) High levels of GDF15 in thalassemia suppress expression of the iron regulatory protein hepcidin. Nat Med 13:1096–1101CrossRefPubMed Tanno T, Bhanu NV, Oneal PA, Goh SH, Staker P, Lee YT, Moroney JW, Reed CH, Luban NL, Wang RH, Eling TE, Childs R, Ganz T, Leitman SF, Fucharoen S, Miller JL (2007) High levels of GDF15 in thalassemia suppress expression of the iron regulatory protein hepcidin. Nat Med 13:1096–1101CrossRefPubMed
go back to reference Tanno T, Noel P, Miller JL (2010) Growth differentiation factor 15 in erythroid health and disease. Curr Opin Hematol 17:184–190PubMedPubMedCentral Tanno T, Noel P, Miller JL (2010) Growth differentiation factor 15 in erythroid health and disease. Curr Opin Hematol 17:184–190PubMedPubMedCentral
go back to reference Tong S, Marjono B, Brown DA, Mulvey S, Breit SN, Manuelpillai U, Wallace EM (2004) Serum concentrations of macrophage inhibitory cytokine 1 (MIC 1) as a predictor of miscarriage. Lancet 363:129–130CrossRefPubMed Tong S, Marjono B, Brown DA, Mulvey S, Breit SN, Manuelpillai U, Wallace EM (2004) Serum concentrations of macrophage inhibitory cytokine 1 (MIC 1) as a predictor of miscarriage. Lancet 363:129–130CrossRefPubMed
go back to reference Turnbull A, Baker H, Vernon-Roberts B, Magnus IA (1973) Iron metabolism in porphyria cutanea tarda and in erythropoietic protoporphyria. Q J Med 42:341–355PubMed Turnbull A, Baker H, Vernon-Roberts B, Magnus IA (1973) Iron metabolism in porphyria cutanea tarda and in erythropoietic protoporphyria. Q J Med 42:341–355PubMed
go back to reference Wahlin S, Floderus Y, Stal P, Harper P (2011) Erythropoietic protoporphyria in Sweden: demographic, clinical, biochemical and genetic characteristics. J Intern Med 269:278–288CrossRefPubMed Wahlin S, Floderus Y, Stal P, Harper P (2011) Erythropoietic protoporphyria in Sweden: demographic, clinical, biochemical and genetic characteristics. J Intern Med 269:278–288CrossRefPubMed
go back to reference Whatley SD, Ducamp S, Gouya L, Grandchamp B, Beaumont C, Badminton MN, Elder GH, Holme SA, Anstey AV, Parker M, Corrigall AV, Meissner PN, Hift RJ, Marsden JT, Ma Y, Mieli-Vergani G, Deybach JC, Puy H (2008) C-terminal deletions in the ALAS2 gene lead to gain of function and cause X-linked dominant protoporphyria without anemia or iron overload. Am J Hum Genet 83:408–414CrossRefPubMedPubMedCentral Whatley SD, Ducamp S, Gouya L, Grandchamp B, Beaumont C, Badminton MN, Elder GH, Holme SA, Anstey AV, Parker M, Corrigall AV, Meissner PN, Hift RJ, Marsden JT, Ma Y, Mieli-Vergani G, Deybach JC, Puy H (2008) C-terminal deletions in the ALAS2 gene lead to gain of function and cause X-linked dominant protoporphyria without anemia or iron overload. Am J Hum Genet 83:408–414CrossRefPubMedPubMedCentral
go back to reference Whatley SD, Mason NG, Holme SA, Anstey AV, Elder GH, Badminton MN (2010) Molecular epidemiology of erythropoietic protoporphyria in the U.K. Br J Dermatol 162:642–646CrossRefPubMed Whatley SD, Mason NG, Holme SA, Anstey AV, Elder GH, Badminton MN (2010) Molecular epidemiology of erythropoietic protoporphyria in the U.K. Br J Dermatol 162:642–646CrossRefPubMed
go back to reference Zimmers TA, Jin X, Hsiao EC, Perez EA, Pierce RH, Chavin KD, Koniaris LG (2006) Growth differentiation factor-15: induction in liver injury through p53 and tumor necrosis factor-independent mechanisms. J Surg Res 130:45–51CrossRefPubMed Zimmers TA, Jin X, Hsiao EC, Perez EA, Pierce RH, Chavin KD, Koniaris LG (2006) Growth differentiation factor-15: induction in liver injury through p53 and tumor necrosis factor-independent mechanisms. J Surg Res 130:45–51CrossRefPubMed
Metadata
Title
Disturbed iron metabolism in erythropoietic protoporphyria and association of GDF15 and gender with disease severity
Authors
Jasmin Barman-Aksoezen
Domenico Girelli
Caterina Aurizi
Xiaoye Schneider-Yin
Natascia Campostrini
Luca Barbieri
Elisabeth I. Minder
Gianfranco Biolcati
Publication date
01-05-2017
Publisher
Springer Netherlands
Published in
Journal of Inherited Metabolic Disease / Issue 3/2017
Print ISSN: 0141-8955
Electronic ISSN: 1573-2665
DOI
https://doi.org/10.1007/s10545-017-0017-7

Other articles of this Issue 3/2017

Journal of Inherited Metabolic Disease 3/2017 Go to the issue

Highlights

News and views

Live Webinar | 27-06-2024 | 18:00 (CEST)

Keynote webinar | Spotlight on medication adherence

Live: Thursday 27th June 2024, 18:00-19:30 (CEST)

WHO estimates that half of all patients worldwide are non-adherent to their prescribed medication. The consequences of poor adherence can be catastrophic, on both the individual and population level.

Join our expert panel to discover why you need to understand the drivers of non-adherence in your patients, and how you can optimize medication adherence in your clinics to drastically improve patient outcomes.

Prof. Kevin Dolgin
Prof. Florian Limbourg
Prof. Anoop Chauhan
Developed by: Springer Medicine
Obesity Clinical Trial Summary

At a glance: The STEP trials

A round-up of the STEP phase 3 clinical trials evaluating semaglutide for weight loss in people with overweight or obesity.

Developed by: Springer Medicine