Abstract:
BACKGROUND:Determining the etiology of oculocutaneous albinism is important for proper clinical management and to determine prognosis. The purpose of this study was to genotype and phenotype eight adopted Chinese children who presented with oculocutaneous albinism and easy bruisability. RESULTS:The patients were evaluated at a single center; their ages ranged from 3 to 8 years. Whole exome or direct sequencing showed that two of the children had Hermansky-Pudlak syndrome (HPS) type-1 (HPS-1), one had HPS-3, one had HPS-4, and four had non-syndromic oculocutaneous albinism associated with TYR variants (OCA1). Two frameshift variants in HPS1 (c.9delC and c.1477delA), one nonsense in HPS4 (c.416G > A), and one missense variant in TYR (c.1235C > T) were unreported. The child with HPS-4 is the first case with this subtype reported in the Chinese population. Hypopigmentation in patients with HPS was mild compared to that in OCA1 cases, who had severe pigment defects. Bruises, which may be more visible in patients with hypopigmentation, were found in all cases with either HPS or OCA1. Whole mount transmission electron microscopy demonstrated absent platelet dense granules in the HPS cases; up to 1.9 mean dense granules per platelet were found in those with OCA1. Platelet aggregation studies in OCA1 cases were inconclusive. CONCLUSIONS:Clinical manifestations of oculocutaneous albinism and easy bruisability may be observed in children with HPS or OCA1. Establishing definitive diagnoses in children presenting with these phenotypic features is facilitated by genetic testing. Non-syndromic oculocutaneous albinism and various HPS subtypes, including HPS-4, are found in children of Chinese ancestry.
journal_name
Orphanet J Rare Disjournal_title
Orphanet journal of rare diseasesauthors
Power B,Ferreira CR,Chen D,Zein WM,O'Brien KJ,Introne WJ,Stephen J,Gahl WA,Huizing M,Malicdan MCV,Adams DR,Gochuico BRdoi
10.1186/s13023-019-1023-7subject
Has Abstractpub_date
2019-02-21 00:00:00pages
52issue
1issn
1750-1172pii
10.1186/s13023-019-1023-7journal_volume
14pub_type
杂志文章abstract:BACKGROUND:The activation of plasma enzyme systems contributes to hereditary angioedema attacks. We aimed to study the activation markers of the fibrinolytic, coagulation, and contact systems in a larger number of paired samples obtained from the same C1-INH-HAE patients in symptom-free periods and during attacks. MET...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-015-0351-5
更新日期:2015-10-09 00:00:00
abstract:BACKGROUND:Oligosaccharidoses are storage disorders due to enzymatic defects involved in the breakdown of the oligosaccharidic component of glycosylated proteins. The defect cause the accumulation of oligosaccharides (OS) and, depending on the lacking enzyme, results in characteristic profiles which are helpful for the...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-020-01662-8
更新日期:2021-01-09 00:00:00
abstract:BACKGROUND:Mucopolysaccharidosis VI (MPS VI) is an autosomal recessive progressive multiorgan disorder due to mutation in the gene encoding the enzyme Arylsulfatase B (ARSB). Dysfunctional ARSB causes lysosomal accumulation of glycosaminoglycans (GAG). Currently, enzyme replacement therapy (ERT) is preferred to hematop...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/1750-1172-8-134
更新日期:2013-09-05 00:00:00
abstract::Progressive familial intrahepatic cholestasis (PFIC) refers to heterogeneous group of autosomal recessive disorders of childhood that disrupt bile formation and present with cholestasis of hepatocellular origin. The exact prevalence remains unknown, but the estimated incidence varies between 1/50,000 and 1/100,000 bir...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章,评审
doi:10.1186/1750-1172-4-1
更新日期:2009-01-08 00:00:00
abstract:BACKGROUND:Hunter syndrome (mucopolysaccharidosis type II (MPS II)) is a rare metabolic disease that can severely compromise health, well-being and life expectancy. Little evidence has been published on the impact of MPS II on health-related quality of life (HRQL). The objective of this study was to describe this impac...
journal_title:Orphanet journal of rare diseases
pub_type: 临床试验,杂志文章
doi:10.1186/1750-1172-8-101
更新日期:2013-07-10 00:00:00
abstract:BACKGROUND:Spinal muscular atrophy (SMA) is an autosomal-recessive motor neuron disease leading to dysfunction of multiple organs. SMA can impair the quality of life (QoL) of patients and family. We aimed to evaluate the QoL of children with SMA and their caregivers and to identify the factors associated with QoL in a ...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-020-01638-8
更新日期:2021-01-06 00:00:00
abstract:BACKGROUND:X-linked hypophosphataemia (XLH) is a rare, hereditary, progressive and lifelong phosphate wasting disorder characterised by pathological elevations in fibroblast growth factor (FGF) 23 concentration and activity; XLH has an incidence of approximately 1 in 20-25,000 individuals. Excess FGF23 activity leads t...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-020-01434-4
更新日期:2020-06-30 00:00:00
abstract::After publication of this article [1], it is noticed reference no. 17 was incorrectly provided, details are shown below. ...
journal_title:Orphanet journal of rare diseases
pub_type: 已发布勘误
doi:10.1186/s13023-019-1084-7
更新日期:2019-05-10 00:00:00
abstract:BACKGROUND:McCune-Albright syndrome (MAS) is a rare disease defined by the triad of fibrous dysplasia (FD), café au lait spots, and peripheral precocious puberty (PP). Because of the rarity of this disease, only a few individuals with MAS have been reported in Korea. We describe the various clinical and endocrine manif...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-016-0496-x
更新日期:2016-08-09 00:00:00
abstract:BACKGROUND:Phenylketonuria (PKU) is an inherited deficiency in the enzyme phenylalanine hydroxylase (PAH), which, when poorly-managed, is associated with clinical features including deficient growth, microcephaly, seizures, and intellectual impairment. The management of PKU should start as soon as possible after diagno...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-019-1153-y
更新日期:2019-07-22 00:00:00
abstract:BACKGROUND:Clinical care guidelines are typically developed by clinicians and researchers. Including patient and caregiver voices in guideline development may help create guidelines that are more useful for patients and consequently improve their guideline adherence. Although there is substantial research on the factor...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-019-1173-7
更新日期:2019-08-20 00:00:00
abstract:BACKGROUND:In spite of recent major advances in the understanding and treatment of inhibitor development in patients with haemophilia, multidisciplinary management of many of these patients remains suboptimal and highly heterogenous across Europe. METHODS:Following a series of multidisciplinary meetings and a review o...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章,评审
doi:10.1186/s13023-018-0800-z
更新日期:2018-04-27 00:00:00
abstract:BACKGROUND:Many rare diseases of childhood are life-threatening and chronically debilitating, so living with a rare disease is an on-going challenge for patients and their families. MPS is one of a range of rare inherited metabolic disorders (IMDs) that come under category 3 of life-limiting conditions, where there is ...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-016-0521-0
更新日期:2016-10-10 00:00:00
abstract::Syndromic diarrhea (SD), also known as phenotypic diarrhea (PD) or tricho-hepato-enteric syndrome (THE), is a congenital enteropathy presenting with early-onset of severe diarrhea requiring parenteral nutrition (PN). To date, no epidemiological data are available. The estimated prevalence is approximately 1/300,000-40...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章,评审
doi:10.1186/1750-1172-3-6
更新日期:2008-02-28 00:00:00
abstract:BACKGROUND:We studied to what extent the level of scientific knowledge on exceptionally rare metabolic inherited diseases and their potential orphan medicinal products is associated with sponsors deciding to apply for an orphan designation at the US Food and Drug Administration (FDA) or the European Medicines Agency (E...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/1750-1172-8-179
更新日期:2013-11-15 00:00:00
abstract:BACKGROUND:The efficacy of thymectomy in patients with non-thymomatous Myasthenia Gravis (MG) is still unclear. Main limitations have been variable outcome definitions, lack of a control group and adjustment for confounding. OBJECTIVE:To study the efficacy of thymectomy in achieving remission or minimal manifestation ...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-014-0214-5
更新日期:2014-12-24 00:00:00
abstract::Taliglucerase alfa is an enzyme replacement therapy (ERT) approved for treatment of adult and paediatric patients with Type 1 Gaucher disease (GD) in several countries and the first plant cell-expressed recombinant therapeutic protein approved by the US Food and Drug Administration for humans. Here, we review the find...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章,评审
doi:10.1186/s13023-018-0776-8
更新日期:2018-02-23 00:00:00
abstract:BACKGROUND:Cystinosis is a rare autosomal recessive disorder caused by intracellular cystine accumulation. Proximal tubulopathy (Fanconi syndrome) is one of the first signs, leading to end-stage renal disease between the age of 12 and 16. Other symptoms occur later and encompass endocrinopathies, distal myopathy and de...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-019-1271-6
更新日期:2020-02-26 00:00:00
abstract:OBJECTIVE: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 adrenomyeloneuropathy (AMN) by HRUS. METHODS:Thirteen adults with genetically proven AMN were examined using the Ultr...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-018-0939-7
更新日期:2018-11-03 00:00:00
abstract:BACKGROUND:The aim of our study is to study the association between eye lesions in Hereditary Hemorrhagic Telangiectasia (HHT) and other signs of the disease, as well as to characterize its genetics. METHODS:A cross-sectional study was conducted of a cohort of 206 patients studied in the HHT Unit of Hospital de Sierra...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-020-01433-5
更新日期:2020-06-29 00:00:00
abstract:BACKGROUND: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 importance in WD is unknown. Kupffer cell activation can be assessed by the P-concentration of solubl...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-018-0910-7
更新日期:2018-09-21 00:00:00
abstract:BACKGROUND:Chronic obstructive pulmonary disease (COPD) is influenced by environmental and genetic factors. An important fraction of COPD cases harbor a major genetic determinant, inherited ZZ (Glu342Lys) α1-antitrypsin deficiency (AATD). A study was undertaken to investigate gene expression patterns in end-stage COPD ...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/1750-1172-7-29
更新日期:2012-05-23 00:00:00
abstract:BACKGROUND:Marinesco-Sjögren syndrome (MSS) is an autosomal recessive multisystem disorder characterized by the tetralogy of cerebellar ataxia, congenital cataracts, intellectual disability, and progressive muscle weakness due to myopathy. MSS is extremely rare, and its clinical, pathological, and genetic features are ...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/1750-1172-9-58
更新日期:2014-04-23 00:00:00
abstract:BACKGROUND:X-linked Duchenne muscular dystrophy (DMD), the most frequent human hereditary skeletal muscle myopathy, inevitably leads to progressive dilated cardiomyopathy. We assessed the effect and safety of a combined treatment with the ACE-inhibitor enalapril and the β-blocker metoprolol in a German cohort of infant...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章,随机对照试验
doi:10.1186/s13023-019-1066-9
更新日期:2019-05-10 00:00:00
abstract::The original version of this article [1] unfortunately included an error to an author's name. Author Maja Di Rocco was erroneously presented as Maja DiRocco.The correct author name has been included in the author list of this Correction article and is already updated in the original article. ...
journal_title:Orphanet journal of rare diseases
pub_type: 已发布勘误
doi:10.1186/s13023-019-1096-3
更新日期:2019-05-23 00:00:00
abstract:BACKGROUND:A pattern of major and minor congenital anomalies, facial dysmorphic features, and neurodevelopmental difficulties, including cognitive and social impairments has been reported in some children exposed to sodium valproate (VPA) during pregnancy. Recognition of the increased risks of in utero exposure to VPA ...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-019-1064-y
更新日期:2019-07-19 00:00:00
abstract:BACKGROUND:Alpha-1 antitrypsin deficiency (AATD) is a rare hereditary condition that leads to decreased circulating alpha-1 antitrypsin (AAT) levels, significantly increasing the risk of serious lung and/or liver disease in children and adults, in which some aspects remain unresolved. METHODS:In this review, we summar...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章,评审
doi:10.1186/s13023-018-0856-9
更新日期:2018-07-11 00:00:00
abstract:BACKGROUND:The TUBA1A-associated tubulinopathy is clinically heterogeneous with brain malformations, microcephaly, developmental delay and epilepsy being the main clinical features. It is an autosomal dominant disorder mostly caused by de novo variants in TUBA1A. RESULTS:In three individuals with developmental delay w...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章,评审
doi:10.1186/s13023-019-1020-x
更新日期:2019-02-11 00:00:00
abstract:BACKGROUND:Disorders of the spine present a common and difficult management concern in patients with skeletal dysplasia. Due to the rarity of these conditions however, the literature, largely consisting of small, single institution case series, is sparse in regard to well-designed studies to support clinical decision m...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-020-01415-7
更新日期:2020-06-24 00:00:00
abstract:BACKGROUND:Genetic contributors to cardiac arrhythmias are often found in cardiovascular conduction pathways and ion channel proteins. Fibrodysplasia ossificans progressiva (FOP) is an ultra-rare disease of massive heterotopic ossification caused by a highly recurrent R206H mutation in ACVR1/ALK2. This mutation causes ...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-020-01465-x
更新日期:2020-07-29 00:00:00