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 births. Three types of PFIC have been identified and related to mutations in hepatocellular transport system genes involved in bile formation. PFIC1 and PFIC2 usually appear in the first months of life, whereas onset of PFIC3 may also occur later in infancy, in childhood or even during young adulthood. Main clinical manifestations include cholestasis, pruritus and jaundice. PFIC patients usually develop fibrosis and end-stage liver disease before adulthood. Serum gamma-glutamyltransferase (GGT) activity is normal in PFIC1 and PFIC2 patients, but is elevated in PFIC3 patients. Both PFIC1 and PFIC2 are caused by impaired bile salt secretion due respectively to defects in ATP8B1 encoding the FIC1 protein, and in ABCB11 encoding the bile salt export pump protein (BSEP). Defects in ABCB4, encoding the multi-drug resistant 3 protein (MDR3), impair biliary phospholipid secretion resulting in PFIC3. Diagnosis is based on clinical manifestations, liver ultrasonography, cholangiography and liver histology, as well as on specific tests for excluding other causes of childhood cholestasis. MDR3 and BSEP liver immunostaining, and analysis of biliary lipid composition should help to select PFIC candidates in whom genotyping could be proposed to confirm the diagnosis. Antenatal diagnosis can be proposed for affected families in which a mutation has been identified. Ursodeoxycholic acid (UDCA) therapy should be initiated in all patients to prevent liver damage. In some PFIC1 or PFIC2 patients, biliary diversion can also relieve pruritus and slow disease progression. However, most PFIC patients are ultimately candidates for liver transplantation. Monitoring of hepatocellular carcinoma, especially in PFIC2 patients, should be offered from the first year of life. Hepatocyte transplantation, gene therapy or specific targeted pharmacotherapy may represent alternative treatments in the future.
journal_name
Orphanet J Rare Disjournal_title
Orphanet journal of rare diseasesauthors
Davit-Spraul A,Gonzales E,Baussan C,Jacquemin Edoi
10.1186/1750-1172-4-1subject
Has Abstractpub_date
2009-01-08 00:00:00pages
1issn
1750-1172pii
1750-1172-4-1journal_volume
4pub_type
杂志文章,评审abstract::China is facing the great challenge of serving the world's largest rare disease population. It is necessary to develop a specific medical plan to increase the levels of optimal prevention, diagnosis and treatment of rare diseases under the existing clinical service structures in China. In 2013, China launched its firs...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/1750-1172-9-14
更新日期:2014-01-27 00:00:00
abstract:BACKGROUND:Charcot-Marie-Tooth (CMT) disease is the most common inherited neuromuscular disorder characterized by wide clinical, genetic and pathomechanistic heterogeneity. Recently, the gene encoding peripheral myelin protein 2 (PMP2) was identified as a novel cause for CMT neuropathy with three mutations that structu...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-019-1162-x
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abstract:BACKGROUND:Isovaleric aciduria (IVA), propionic aciduria (PA) and methylmalonic aciduria (MMA) are inherited organic acidurias (OAs) in which impaired organic acid metabolism induces hyperammonaemia arising partly from secondary deficiency of N-acetylglutamate (NAG) synthase. Rapid reduction in plasma ammonia is requir...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章,多中心研究
doi:10.1186/s13023-016-0406-2
更新日期:2016-03-31 00:00:00
abstract:INTRODUCTION:The European principles of care in haemophilia marked their first decade in 2018. These guiding principles were the beginning of the European Haemophilia Consortium (EHC) review of countries' adherence to these principles in 2009, 2012, 2015 and 2018. The aim of this paper was to examine the implementation...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-020-01456-y
更新日期:2020-07-13 00:00:00
abstract:BACKGROUND:Pigmentary mosaicism is a term that describes varied patterns of pigmentation in the skin caused by genetic heterogeneity of the skin cells. In a substantial number of cases, pigmentary mosaicism is observed alongside extracutaneous abnormalities typically involving the central nervous system and the musculo...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章,评审
doi:10.1186/s13023-018-0778-6
更新日期:2018-03-05 00:00:00
abstract:BACKGROUND:Lipodystrophy syndromes comprise a group of extremely rare and heterogeneous diseases characterized by a selective loss of adipose tissue in the absence of nutritional deprivation or catabolic state. Because of the rarity of each lipodystrophy subform, research in this area is difficult and international co-...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-020-1295-y
更新日期:2020-01-15 00:00:00
abstract:BACKGROUND:Sporadic inclusion body myositis (sIBM) is the most prevalent acquired muscle disease in the elderly. sIBM is an intractable and progressive disease of unknown cause and without effective treatment. The etiology of sIBM is still unknown; however, genetic factors, aging, lifestyles, and environmental factors ...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章,多中心研究
doi:10.1186/s13023-016-0524-x
更新日期:2016-11-08 00:00:00
abstract:BACKGROUND:Neurofibromatosis type 1 is an inherited condition with variable phenotypic expression and a high medical and social burden. The objectives of this patient survey were to better understand the real-world experiences of patients living with cutaneous neurofibromas (cNF), to perceive their satisfaction and fee...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-019-1265-4
更新日期:2019-12-04 00:00:00
abstract:BACKGROUND:It is unknown whether the neonatal tetrahydrobiopterin (BH4) loading test is adequate to diagnose long-term BH4 responsiveness in PKU. Therefore we compared the predictive value of the neonatal (test I) versus the 48-h BH4 loading test (test II) and long-term BH4 responsiveness. METHODS:Data on test I (>199...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-016-0394-2
更新日期:2016-01-29 00:00:00
abstract:BACKGROUND:Urea cycle disorders (UCDs) are a group of rare inherited metabolic disorders. Affected individuals often present with hyperammonemic encephalopathy (HE) and have an increased risk of severe neurologic disease and early death. The study aims to provide epidemiologic data and to describe the disease manifesta...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-017-0661-x
更新日期:2017-06-15 00:00:00
abstract:BACKGROUND:Triglyceride deposit cardiomyovasculopathy (TGCV) is a rare disease, characterized by the massive accumulation of triglyceride (TG) in multiple tissues, especially skeletal muscle, heart muscle and the coronary artery. TGCV is caused by mutation of adipose triglyceride lipase, which is an essential molecule ...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/1750-1172-8-197
更新日期:2013-12-21 00:00:00
abstract:OBJECTIVE:NUT midline carcinoma (NMC), a rare type of squamous cell carcinoma, is genetically characterised by NUT midline carcinoma family member 1 (NUTM1) gene rearrangement. NMC can arise from the lungs; however, there is no standard for the management of primary pulmonary NMC. This study aimed to confirm the clinic...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-020-01449-x
更新日期:2020-07-10 00:00:00
abstract::The practice of genomic medicine stands to revolutionize our approach to medical care, and to realize this goal will require discovery of the relationship between rare variation at each of the ~ 20,000 protein-coding genes and their consequent impact on individual health and expression of Mendelian disease. The step-w...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章,评审
doi:10.1186/s13023-019-1127-0
更新日期:2019-06-24 00:00:00
abstract:AIM:To determine the prevalence of undiagnosed Fabry Disease (FD) in Western Australian (WA) patients undergoing dialysis. BACKGROUND:FD is a multisystem X-linked lysosomal storage disease caused by deficient activity of alpha-galactosidase-A (α-GAL-A). Affected individuals are at risk of developing small-fibre neurop...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-019-1290-3
更新日期:2020-01-13 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:Phosphomannomutase deficiency (PMM2-CDG) is the most frequent congenital disorder of glycosylation. The cerebellum is nearly always affected in PMM2-CDG patients, a cerebellar atrophy progression is observed, and cerebellar dysfunction is their main daily functional limitation. Different therapeutic agents a...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-015-0358-y
更新日期:2015-10-26 00:00:00
abstract:BACKGROUND:Lymphangioleiomyomatosis (LAM) is included within group 5 of the current PH classification (unclear multifactorial mechanisms). However, data regarding the occurrence of PH in LAM are scarce. The aims of the study were to describe the prevalence and characteristics of PH in a large cohort of LAM patients wit...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-017-0626-0
更新日期:2017-04-20 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::Glutamine synthetase (GS) is ubiquitously expressed in mammalian organisms and is a key enzyme in nitrogen metabolism. It is the only known enzyme capable of synthesising glutamine, an amino acid with many critical roles in the human organism. A defect in GLUL, encoding for GS, leads to congenital systemic glutamine d...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/1750-1172-7-48
更新日期:2012-07-25 00:00:00
abstract:BACKGROUND:Myotonic dystrophy type 1 (Steinert's disease or DM1), the most common form of autosomal dominant muscular dystrophy in adults, is a multisystem disorder, affecting skeletal muscle as well as eyes, heart, gastrointestinal tract, endocrine system, and central nervous system, finally responsible of increasing ...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-016-0417-z
更新日期:2016-04-04 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::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::Paediatric chordomas are rare malignant tumours arising from primitive notochordal remnants with a high rate of recurrence. Only 5 % of them occur in the first two decades such less than 300 paediatric cases have been reported so far in the literature. In children, the average age at diagnosis is 10 years with a male-...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章,评审
doi:10.1186/s13023-015-0340-8
更新日期:2015-09-22 00:00:00
abstract:BACKGROUND:FBLN5-related cutis laxa (CL) is a rare disorder that involves elastic fiber-enriched tissues and is characterized by lax skin and variable systemic involvement such as pulmonary emphysema, arterial involvement, inguinal hernias, hollow viscus diverticula and pyloric stenosis. This type of CL follows mostly ...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-021-01696-6
更新日期:2021-01-28 00:00:00
abstract:BACKGROUND:Infantile spasms represent the catastrophic, age-specific seizure type associated with acute and long-term neurological morbidity. However, due to rarity and heterogenous determination, there is persistent uncertainty of its pathophysiological and epidemiological characteristics. The purpose of the current s...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章,meta分析
doi:10.1186/s13023-018-0952-x
更新日期:2018-11-29 00:00:00
abstract:BACKGROUND:Lysinuric protein intolerance (LPI) is a rare metabolic disease resulting from recessive-inherited mutations in the SLC7A7 gene encoding the cationic amino-acids transporter subunit y+LAT1. The disease is characterised by protein-rich food intolerance with secondary urea cycle disorder, but symptoms are hete...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-016-0550-8
更新日期:2017-01-05 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:Lysosomal acid lipase deficiency (LALD) is an autosomal recessive inborn error of lipid metabolism characterized by impaired lysosomal hydrolysis and consequent accumulation of cholesteryl esters and triglycerides. The phenotypic spectrum is diverse, ranging from severe, neonatal onset failure to thrive, hep...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-020-1328-6
更新日期:2020-02-24 00:00:00
abstract:BACKGROUND: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 sapropterin in the European Union was extended in 2015 to include patients aged 0-4 years, bringing th...
journal_title:Orphanet journal of rare diseases
pub_type: 杂志文章
doi:10.1186/s13023-018-0911-6
更新日期:2018-09-29 00:00:00
abstract::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 often recalcitrant to oral steroids and immunosuppressants. Here, we describe the use of systemic retinoids for t...
journal_title:Orphanet journal of rare diseases
pub_type: 信件
doi:10.1186/s13023-018-0899-y
更新日期:2018-09-18 00:00:00