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  1. Content type: Research

    Patients with hemophilia and inhibitors generally face greater disease burden compared to patients without inhibitors. While raising awareness of relative burden may improve the standard of care for patients w...

    Authors: Abiola O. Oladapo, Mei Lu, Shaun Walsh, Jamie O’Hara and Teresa L. Kauf

    Citation: Orphanet Journal of Rare Diseases 2018 13:198

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  2. Content type: Position statement

    We now live in a time of unprecedented opportunities to turn scientific discoveries into better treatments for the estimated 30 million people in the US living with rare diseases. Despite these scientific adva...

    Authors: Petra Kaufmann, Anne R. Pariser and Christopher Austin

    Citation: Orphanet Journal of Rare Diseases 2018 13:196

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  3. Content type: Position statement

    Orphan drug development faces numerous challenges, including low disease prevalence, patient population heterogeneity, and strong presence of paediatric patient populations. Consequently, clinical trials for o...

    Authors: Simon Day, Anneliene Hechtelt Jonker, Lilian Pek Lian Lau, Ralf-Dieter Hilgers, Ilan Irony, Kristina Larsson, Kit CB Roes and Nigel Stallard

    Citation: Orphanet Journal of Rare Diseases 2018 13:195

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  4. Content type: Research

    Funding of orphan medicinal products (OMPs) is an increasing challenge in the European Union (EU).

    Authors: Márta Szegedi, Tamás Zelei, Francis Arickx, Anna Bucsics, Emanuelle Cohn-Zanchetta, Jurij Fürst, Maria Kamusheva, Pawel Kawalec, Guenka Petrova, Juraj Slaby, Ewa Stawowczyk, Milan Vocelka, Ingrid Zechmeister-Koss, Zoltán Kaló and Mária Judit Molnár

    Citation: Orphanet Journal of Rare Diseases 2018 13:184

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  5. Content type: Research

    High-resolution nerve ultrasound (HRUS) is a painless tool to quickly evaluate peripheral nerve morphology in vivo. This study set out to characterize peripheral nerve involvement in X-linked adrenomyeloneurop...

    Authors: Tim W. Rattay, Jennifer Just, Benjamin Röben, Holger Hengel, Rebecca Schüle, Matthis Synofzik, Anne S. Söhn, Natalie Winter, Nele Dammeier, Ludger Schöls and Alexander Grimm

    Citation: Orphanet Journal of Rare Diseases 2018 13:194

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  6. Content type: Letter to the Editor

    Generalized severe epidermolysis bullosa simplex (EBS-gen sev) is caused by mutations within either the KRT5 or KRT14 gene, phenotypically resulting in blistering and wounding of the skin and mucous membranes aft...

    Authors: Michael Ablinger, Thomas K. Felder, Monika Wimmer, Roland Zauner, Peter Hofbauer, Thomas Lettner, Martin Wolkersdorfer, Florian B. Lagler, Anja Diem, Johann W. Bauer and Verena Wally

    Citation: Orphanet Journal of Rare Diseases 2018 13:193

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  7. Content type: Research

    People with Phenylketonuria (PKU) who respond to tetrahydrobiopterin (BH4) often decrease dependence on medical food (MF) following increased phenylalanine (phe) tolerance. Responders to BH4 may experience a r...

    Authors: Kristen D Brantley, Teresa D Douglas and Rani H Singh

    Citation: Orphanet Journal of Rare Diseases 2018 13:192

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  8. Content type: Research

    Extensive and complex vascular malformations often cause chronic pain and severe functional restraint. Conventional treatments, such as surgery and/or sclerotherapy, are rarely curative, underscoring the great...

    Authors: Jennifer Hammer, Emmanuel Seront, Steven Duez, Sophie Dupont, An Van Damme, Sandra Schmitz, Claire Hoyoux, Caroline Chopinet, Philippe Clapuyt, Frank Hammer, Miikka Vikkula and Laurence M. Boon

    Citation: Orphanet Journal of Rare Diseases 2018 13:191

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  9. Content type: Research

    Oral cholic acid (CA) replacement has been shown to be an effective therapy in children with primary bile acid synthesis defects, which are rare and severe genetic liver diseases. To date there has been no rep...

    Authors: Emmanuel Gonzales, Lorenza Matarazzo, Stéphanie Franchi-Abella, Alain Dabadie, Joseph Cohen, Dalila Habes, Sophie Hillaire, Catherine Guettier, Anne-Marie Taburet, Anne Myara and Emmanuel Jacquemin

    Citation: Orphanet Journal of Rare Diseases 2018 13:190

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  10. Content type: Research

    Despite dietary intervention, individuals with early treated phenylketonuria (ETPKU) could present neurocognitive deficits and white matter (WM) abnormalities. The aim of the present study was to evaluate the ...

    Authors: María Julieta González, Mónica Rebollo Polo, Pablo Ripollés, Rosa Gassió, Aída Ormazabal, Cristina Sierra, Roser Colomé Roura, Rafael Artuch and Jaume Campistol

    Citation: Orphanet Journal of Rare Diseases 2018 13:188

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  11. Content type: Research

    Osteogenesis imperfecta (OI) affects dental and craniofacial development and may therefore impair Oral Health-Related Quality of Life (OHRQoL). However, little is known about OHRQoL in children and adolescents...

    Authors: Mohammadamin Najirad, Mang Shin Ma, Frank Rauch, Vernon Reid Sutton, Brendan Lee, Jean-Marc Retrouvey and Shahrokh Esfandiari

    Citation: Orphanet Journal of Rare Diseases 2018 13:187

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  12. Content type: Review

    Where there are a limited number of patients, such as in a rare disease, clinical trials in these small populations present several challenges, including statistical issues. This led to an EU FP7 call for prop...

    Authors: Tim Friede, Martin Posch, Sarah Zohar, Corinne Alberti, Norbert Benda, Emmanuelle Comets, Simon Day, Alex Dmitrienko, Alexandra Graf, Burak Kürsad Günhan, Siew Wan Hee, Frederike Lentz, Jason Madan, Frank Miller, Thomas Ondra, Michael Pearce…

    Citation: Orphanet Journal of Rare Diseases 2018 13:186

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  13. Content type: Research

    It is well documented that mothers of children with intellectual disabilities or autism experience elevated stress, with mental health compromised. However, comparatively little is known about mothers of child...

    Authors: Dawn Adams, Richard P Hastings, Clair Alston-Knox, Rina Cianfaglione, Kate Eden, David Felce, Gemma Griffith, Jo Moss, Chris Stinton and Chris Oliver

    Citation: Orphanet Journal of Rare Diseases 2018 13:185

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  14. Content type: Research

    The Orphan Drug Act was enacted in 1983 to encourage the development of drugs for rare diseases. Previous research has attempted to examine the impact of the Act by assessing either the number of orphan design...

    Authors: Kathleen L. Miller and Michael Lanthier

    Citation: Orphanet Journal of Rare Diseases 2018 13:183

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  15. Content type: Research

    Lymphangioleiomyomatosis (LAM) and connective tissue diseases (CTDs) occur more frequently among women than men. We investigated the frequency of comorbid CTD and positive serum autoantibody findings in patien...

    Authors: Shinji Futami, Toru Arai, Masaki Hirose, Chikatoshi Sugimoto, Naoya Ikegami, Masanori Akira, Takahiko Kasai, Masanori Kitaichi, Seiji Hayashi and Yoshikazu Inoue

    Citation: Orphanet Journal of Rare Diseases 2018 13:182

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  16. Content type: Research

    Estrogen plays a role in infantile hemangioma (IH) development, but the underlying mechanism remains unclear. This study aimed to assess estrogen and estrogen receptor (ER) localization and expression levels i...

    Authors: Fang Hou, Yuemeng Dai, Chun-Yang Fan, James Y. Suen and Gresham T. Richter

    Citation: Orphanet Journal of Rare Diseases 2018 13:181

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  17. Content type: Research

    Real-world data on usage and associated outcomes with hereditary angioedema (HAE)-specific medications introduced to the United States (US) market since 2009 are very limited. The purpose of this retrospective...

    Authors: Marc A Riedl, Aleena Banerji, Michael E Manning, Earl Burrell, Namita Joshi, Dipen Patel, Thomas Machnig, Ming-Hui Tai and Douglas J Watson

    Citation: Orphanet Journal of Rare Diseases 2018 13:180

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  18. Content type: Research

    A decision tree model was built to estimate the economic impact of introducing screening for X-linked adrenoleukodystrophy (X-ALD) into an existing tandem mass spectrometry based newborn screening programme. T...

    Authors: Alice Bessey, James B Chilcott, Joanna Leaviss and Anthea Sutton

    Citation: Orphanet Journal of Rare Diseases 2018 13:179

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  19. Content type: Research

    Wiedemann–Steiner syndrome (WDSTS) is a rare genetic disorder characterized by facial gestalt, neurodevelopmental delay, skeletal anomalies and growth retardation, which is caused by variation of KMT2A gene. To d...

    Authors: Niu Li, Yirou Wang, Yu Yang, Pengpeng Wang, Hui Huang, Shiyi Xiong, Luming Sun, Min Cheng, Cui Song, Xinran Cheng, Yu Ding, Guoying Chang, Yao Chen, Yufei Xu, Tingting Yu, Ru-en Yao…

    Citation: Orphanet Journal of Rare Diseases 2018 13:178

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  20. Content type: Letter to the Editor

    Transthyretin (TTR)-related familial amyloid polyneuropathy (TTR-FAP) is a life-threatening autosomal dominant, systemic disease. First symptoms usually occur from the second to over sixth decade of life with ...

    Authors: Marina Grandis, Alessandro Geroldi, Rossella Gulli, Fiore Manganelli, Fabio Gotta, Merit Lamp, Paola Origone, Lucia Trevisan, Chiara Gemelli, Sabrina Fabbri, Angelo Schenone, Stefano Tozza, Lucio Santoro, Emilia Bellone and Paola Mandich

    Citation: Orphanet Journal of Rare Diseases 2018 13:177

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  21. Content type: Research

    The worldwide landscape of patient registries in the neuromuscular disease (NMD) field has significantly changed in the last 10 years, with the international TREAT-NMD network acting as strong driver. At the s...

    Authors: Anna Ambrosini, Daniela Calabrese, Francesco Maria Avato, Felice Catania, Guido Cavaletti, Maria Carmela Pera, Antonio Toscano, Giuseppe Vita, Lucia Monaco and Davide Pareyson

    Citation: Orphanet Journal of Rare Diseases 2018 13:176

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  22. Content type: Research

    Niemann-Pick disease type C (NP-C) is a neurodegenerative lysosomal lipid storage disease caused by autosomal recessive mutations in the NPC1 or NPC2 genes. The clinical presentation and evolution of NP-C and the...

    Authors: Yann Nadjar, Ana Lucia Hütter-Moncada, Philippe Latour, Xavier Ayrignac, Elsa Kaphan, Christine Tranchant, Pascal Cintas, Adrian Degardin, Cyril Goizet, Chloe Laurencin, Lionel Martzolff, Caroline Tilikete, Mathieu Anheim, Bertrand Audoin, Vincent Deramecourt, Thierry Dubard De Gaillarbois…

    Citation: Orphanet Journal of Rare Diseases 2018 13:175

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  23. Content type: Research

    Urea cycle disorders (UCDs) are inherited metabolic disorders that present with hyperammonemia, and cause significant mortality and morbidity in infants and children. These disorders are not well reported in t...

    Authors: Sunita Bijarnia-Mahay, Johannes Häberle, Anil B. Jalan, Ratna Dua Puri, Sudha Kohli, Ketki Kudalkar, Véronique Rüfenacht, Deepti Gupta, Deepshikha Maurya, Jyotsna Verma, Yosuke Shigematsu, Seiji Yamaguchi, Renu Saxena and Ishwar C. Verma

    Citation: Orphanet Journal of Rare Diseases 2018 13:174

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  24. Content type: Position statement

    Treatment of phenylketonuria (PKU) with sapropterin dihydrochloride in responsive patients from an early age can have many advantages for the patient over dietary restriction alone. Accordingly, approval of sa...

    Authors: Ania C. Muntau, Marcel du Moulin and Francois Feillet

    Citation: Orphanet Journal of Rare Diseases 2018 13:173

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  25. Content type: Research

    Lumacaftor/ivacaftor was approved by the Food and Drug Administration (FDA) as a combination treatment for Cystic Fibrosis (CF) patients who are homozygous for the F508del mutation. The objective of this study...

    Authors: Dolly Sharma, Shan Xing, Yu-Ting Hung, Rachel N. Caskey, Maria L. Dowell and Daniel R. Touchette

    Citation: Orphanet Journal of Rare Diseases 2018 13:172

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  26. Content type: Letter to the Editor

    Fabry disease (FD) is a rare X-linked disorder caused by a deficiency of lysosomal α-galactosidase A activity. Treatment with recombinant enzyme replacement therapy is available since 2001 and the effects of a...

    Authors: Malte Lenders, Boris Schmitz, Stefan-Martin Brand and Eva Brand

    Citation: Orphanet Journal of Rare Diseases 2018 13:171

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  27. Content type: Research

    Dystroglycanopathy (α-DG) is a relatively common, clinically and genetically heterogeneous category of congenital forms of muscular dystrophy (CMD) and limb-girdle muscular dystrophy (LGMD) associated with hyp...

    Authors: Guja Astrea, Alessandro Romano, Corrado Angelini, Carlo Giuseppe Antozzi, Rita Barresi, Roberta Battini, Carla Battisti, Enrico Bertini, Claudio Bruno, Denise Cassandrini, Marina Fanin, Fabiana Fattori, Chiara Fiorillo, Renzo Guerrini, Lorenzo Maggi, Eugenio Mercuri…

    Citation: Orphanet Journal of Rare Diseases 2018 13:170

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  28. Content type: Research

    Hepatic macrophage (Kupffer cell) hyperplasia is often described in Wilson’s disease (WD). In many liver diseases, Kupffer cell activation is related to disease severity, liver function, and fibrosis but the i...

    Authors: Jessica Björklund, Tea Lund Laursen, Thomas Damgaard Sandahl, Holger Jon Møller, Hendrik Vilstrup, Peter Ott and Henning Grønbæk

    Citation: Orphanet Journal of Rare Diseases 2018 13:169

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  29. Content type: Letter to the Editor

    Pneumothorax is one of the most common symptoms in patients with lymphangioleiomyomatosis (LAM). However, current management strategies for patients with LAM who present with recurrent pneumothorax remain inad...

    Authors: Li Zhou, Ruoyun Ouyang, Hong Luo, Siying Ren, Ping Chen, Yating Peng, Ting Liu and Guiqian Liu

    Citation: Orphanet Journal of Rare Diseases 2018 13:168

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  30. Content type: Research

    Cherubism is a rare autosomal dominant disorder of the jaws caused by mutation of the SH3BP2 gene. The bone is replaced by a fibrous granuloma containing multinucleated giant cells. Cells of the cherubism granulo...

    Authors: Natacha Kadlub, Quentin Sessiecq, Marion Mandavit, Aurore Coulomb L’Hermine, Cecile Badoual, Louise Galmiche, Ariane Berdal, Vianney Descroix, Arnaud Picard and Amélie E. Coudert

    Citation: Orphanet Journal of Rare Diseases 2018 13:166

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  31. Content type: Research

    Autosomal Recessive Spastic Ataxia of Charlevoix-Saguenay (ARSACS) is a recessive neurological disorder with cerebellar, pyramidal and neuropathic features. Natural history data are urgently needed to increase...

    Authors: Cynthia Gagnon, Bernard Brais, Isabelle Lessard, Caroline Lavoie, Isabelle Côté and Jean Mathieu

    Citation: Orphanet Journal of Rare Diseases 2018 13:165

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  32. Content type: Research

    Classical Galactosaemia (CG) (OMIM #230400) is a rare inborn error of galactose metabolism caused by deficiency of the enzyme galactose-1-phosphate uridylyltransferase (GALT). Long-term complications persist i...

    Authors: Hugh-Owen Colhoun, Estela M. Rubio Gozalbo, Annet M. Bosch, Ina Knerr, Charlotte Dawson, Jennifer Brady, Marie Galligan, Karolina Stepien, Roisin O’Flaherty, C. Catherine Moss, P. Peter Barker, Maria Fitzgibbon, Peter P. Doran and Eileen P. Treacy

    Citation: Orphanet Journal of Rare Diseases 2018 13:164

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  33. Content type: Letter to the Editor

    IgA pemphigus is an exceedingly rare autoimmune blistering disorder, caused by IgA autoantibodies against desmosomal proteins. No treatment option has been found to be universally effective. The disease is oft...

    Authors: Franziska Schauer, Johannes Steffen Kern and Dimitra Kiritsi

    Citation: Orphanet Journal of Rare Diseases 2018 13:163

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  34. Content type: Research

    Albinism comprises a group of autosomal recessive diseases that are characterized by poor vision and a variable hypopigmentation phenotype. A comprehensive literature review showed that no tool can assess the ...

    Authors: Fanny Morice-Picard, Charles Taïeb, Aurelie Marti, Antoine Gliksohn, Mohammed Bennani, Christine Bodemer and Khaled Ezzedine

    Citation: Orphanet Journal of Rare Diseases 2018 13:162

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  35. Content type: Letter to the Editor

    Alpha-1 antitrypsin deficiency is an autosomal co-dominant disorder caused by mutations of the highly polymorphic SERPINA1 gene. This genetic disorder still remains largely under-recognized and can be associated ...

    Authors: Céline Renoux, Marie-Françoise Odou, Guillaume Tosato, Jordan Teoli, Norman Abbou, Christine Lombard, Farid Zerimech, Nicole Porchet, Colette Chapuis Cellier, Malika Balduyck and Philippe Joly

    Citation: Orphanet Journal of Rare Diseases 2018 13:161

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  36. Content type: Research

    Tay-Sachs disease (TSD) is a rare neurodegenerative disorder caused by autosomal recessive mutations in the HEXA gene on chromosome 15 that encodes β-hexosaminidase. Deficiency in HEXA results in accumulation of ...

    Authors: Mylinh Vu, Rong Li, Amanda Baskfield, Billy Lu, Atena Farkhondeh, Kirill Gorshkov, Omid Motabar, Jeanette Beers, Guokai Chen, Jizhong Zou, Angela J. Espejo-Mojica, Alexander Rodríguez-López, Carlos J. Alméciga-Díaz, Luis A. Barrera, Xuntian Jiang, Daniel S. Ory…

    Citation: Orphanet Journal of Rare Diseases 2018 13:152

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  37. Content type: Research

    To determine the value of a continuous repetitive task to detect and quantify fatigability as additional dimension of impaired motor function in patients with hereditary proximal spinal muscular atrophy (SMA).

    Authors: Marloes Stam, Renske I. Wadman, Bart Bartels, Maureen Leeuw, Henk-Jan Westeneng, Camiel A. Wijngaarde, Leonard H. van den Berg and W. Ludo van der Pol

    Citation: Orphanet Journal of Rare Diseases 2018 13:160

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  38. Content type: Research

    This study aimed to obtain UK societal-based utility values for health states related to treatment mode of administration using Gaucher disease as the background condition.

    Authors: Monica Hadi, Paul Swinburn, Luba Nalysnyk, Alaa Hamed and Atul Mehta

    Citation: Orphanet Journal of Rare Diseases 2018 13:159

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  39. Content type: Position statement

    On the occasion of the 13th International Conference on Osteogenesis imperfecta in August 2017 an expert panel was convened to develop an international consensus paper regarding physical rehabilitation in chil...

    Authors: Brigitte Mueller, Raoul Engelbert, Frances Baratta-Ziska, Bart Bartels, Nicole Blanc, Evelise Brizola, Paolo Fraschini, Claire Hill, Caroline Marr, Lisa Mills, Kathleen Montpetit, Verity Pacey, Miguel Rodriguez Molina, Marleen Schuuring, Chantal Verhille, Olga de Vries…

    Citation: Orphanet Journal of Rare Diseases 2018 13:158

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  40. Content type: Research

    Most evidence for TSC-associated neuropsychiatric disorders (TAND) to date have come from small studies and case reports, and very little is known about TAND in adults. We explored baseline TAND data from the ...

    Authors: Petrus J. de Vries, Elena Belousova, Mirjana P. Benedik, Tom Carter, Vincent Cottin, Paolo Curatolo, Maria Dahlin, Lisa D’Amato, Guillaume B. d’Augères, José C. Ferreira, Martha Feucht, Carla Fladrowski, Christoph Hertzberg, Sergiusz Jozwiak, J. Chris Kingswood, John A. Lawson…

    Citation: Orphanet Journal of Rare Diseases 2018 13:157

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  41. Content type: Research

    Limited data are available on the experiences of patients with autoinflammatory diseases (AIDs) and their families along the path to diagnosis and treatment. We sought to describe these experiences in patients...

    Authors: Jonathan S. Hausmann, Kathleen G. Lomax, Ari Shapiro and Karen Durrant

    Citation: Orphanet Journal of Rare Diseases 2018 13:156

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  42. Content type: Research

    Myotonic Dystrophy is the most common form of muscular dystrophy in adults, affecting an estimated 10 per 100,000 people. It is a multisystemic disorder affecting multiple generations with increasing severity....

    Authors: Libby Wood, Guillaume Bassez, Corinne Bleyenheuft, Craig Campbell, Louise Cossette, Aura Cecilia Jimenez-Moreno, Yi Dai, Hugh Dawkins, Jorge Alberto Diaz Manera, Celine Dogan, Rasha el Sherif, Barbara Fossati, Caroline Graham, James Hilbert, Kristinia Kastreva, En Kimura…

    Citation: Orphanet Journal of Rare Diseases 2018 13:155

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    The Correction to this article has been published in Orphanet Journal of Rare Diseases 2019 14:199

  43. Content type: Research

    Low prevalence, lack of knowledge about the disease course, and phenotype heterogeneity hamper the development of drugs for rare diseases. Rare disease registries (RDRs) can be helpful by playing a role in und...

    Authors: Marijke C. Jansen-van der Weide, Charlotte M. W. Gaasterland, Kit C. B. Roes, Caridad Pontes, Roser Vives, Arantxa Sancho, Stavros Nikolakopoulos, Eric Vermeulen and Johanna H. van der Lee

    Citation: Orphanet Journal of Rare Diseases 2018 13:154

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  44. Content type: Research

    Epidermolysis bullosa acquisita (EBA) is an orphan autoimmune disease. Several clinical phenotypes have been described, but subepidermal blistering is characteristic of all variants. Limited data on clinical a...

    Authors: Hiroaki Iwata, Artem Vorobyev, Hiroshi Koga, Andreas Recke, Detlef Zillikens, Catherine Prost-Squarcioni, Norito Ishii, Takashi Hashimoto and Ralf J. Ludwig

    Citation: Orphanet Journal of Rare Diseases 2018 13:153

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  45. Content type: Research

    Elbow arthropathy is characteristic in patients with hemophilia. Arthropathy is manifested by decreased range of motion, pain, loss of strength and muscular atrophy, and axial changes. The objective is to eval...

    Authors: Rubén Cuesta-Barriuso, Antonia Gómez-Conesa and José-Antonio López-Pina

    Citation: Orphanet Journal of Rare Diseases 2018 13:151

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  46. Content type: Review

    Even though early dietary management of phenylketonuria (PKU) successfully prevents severe neurological impairments, deficits in cognitive functioning are still observed. These deficits are believed to be the ...

    Authors: Denise Leonne Hofman, Claire Louise Champ, Clare Louise Lawton, Mick Henderson and Louise Dye

    Citation: Orphanet Journal of Rare Diseases 2018 13:150

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  47. Content type: Review

    Phenylketonuria (PKU) is often considered as the classical example of a genetic disorder in which severe symptoms can nowadays successfully be prevented by early diagnosis and treatment. In contrast, untreated...

    Authors: Danique van Vliet, Annemiek M. J. van Wegberg, Kirsten Ahring, Miroslaw Bik-Multanowski, Nenad Blau, Fatma D. Bulut, Kari Casas, Bozena Didycz, Maja Djordjevic, Antonio Federico, François Feillet, Maria Gizewska, Gwendolyn Gramer, Jozef L. Hertecant, Carla E. M. Hollak, Jens V. Jørgensen…

    Citation: Orphanet Journal of Rare Diseases 2018 13:149

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