Lesch-Nyhan Syndrome
|
1.000 |
GeneticVariation
|
disease |
BEFREE |
Mutation of hypoxanthine guanine phosphoribosyltransferase (HPRT) gives rise to Lesch-Nyhan syndrome, which is characterized by hyperuricemia, severe motor disability, and self-injurious behavior, or HPRT-related gout with hyperuricemia.
|
24940672 |
2014 |
Lesch-Nyhan Syndrome
|
1.000 |
GeneticVariation
|
disease |
UNIPROT |
Mutation of hypoxanthine guanine phosphoribosyltransferase (HPRT) gives rise to Lesch-Nyhan syndrome, which is characterized by hyperuricemia, severe motor disability, and self-injurious behavior, or HPRT-related gout with hyperuricemia.
|
24940672 |
2014 |
Lesch-Nyhan Syndrome
|
1.000 |
Biomarker
|
disease |
BEFREE |
Lesch-Nyhan disease (LND) is caused by congenital deficiency of the purine recycling enzyme, hypoxanthine-guanine phosphoribosyltransferase (HGprt).
|
24891139 |
2014 |
Lesch-Nyhan Syndrome
|
1.000 |
GeneticVariation
|
disease |
BEFREE |
Lesch-Nyhan disease (LND) is an X-linked metabolic disease caused by various mutations in the gene HPRT1 encoding an enzyme of purine metabolism, hypoxanthine guanine phosphoribosyltransferase (HPRT).
|
24940671 |
2014 |
Lesch-Nyhan Syndrome
|
1.000 |
GeneticVariation
|
disease |
BEFREE |
Lesch Nyhan syndrome (LNS) is an X-linked recessive disorder due to complete deficiency of the hypoxanthine-guanine phosphoribosyltransferase (HPRT) enzyme.
|
24503445 |
2014 |
Lesch-Nyhan Syndrome
|
1.000 |
AlteredExpression
|
disease |
BEFREE |
A role for epistasis between mutated HPRT and APP genes affecting the regulation of alternative APP pre-mRNA splicing in LNS is suggested.
|
24680827 |
2014 |
Lesch-Nyhan Syndrome
|
1.000 |
Biomarker
|
disease |
BEFREE |
It is helpful for diagnosis of LND that sequencing analysis of HPRT1 gene is performed in male infant and juvenile with hyperuricaemia and neurologic dysfunction in Chinese.
|
24001192 |
2013 |
Lesch-Nyhan Syndrome
|
1.000 |
Biomarker
|
disease |
BEFREE |
Most notably, our data show that the expression of the exchange protein activated by cAMP (EPAC) is blunted in HPRT-deficient human neuron-like cell lines and fibroblast cells from LNS patients, and is altered in the cortex, striatum and midbrain of HPRT knockout mouse.
|
23804752 |
2013 |
Lesch-Nyhan Syndrome
|
1.000 |
GeneticVariation
|
disease |
BEFREE |
We report three novel independent mutations in the coding region of HPRT gene: exon 3: c.141delA, p.D47fs53X; exon 5: c.400G>A, p.E134K; exon 7: c.499A>G, p.R167G from three LNS affected male patients.
|
23473102 |
2013 |
Lesch-Nyhan Syndrome
|
1.000 |
AlteredExpression
|
disease |
BEFREE |
Hypoxanthine-guanine phosphoribosyltransferase (HGPRT) enzyme activity was investigated and found to be deficient confirming the diagnosis of Lesch-Nyhan disease.
|
24326440 |
2013 |
Lesch-Nyhan Syndrome
|
1.000 |
Biomarker
|
disease |
CLINGEN |
Improved functionality of the combined system was demonstrated by targeted disruption of the HPRT1 gene to create isogenic disease models of Lesch-Nyhan-Syndrome.
|
24206569 |
2013 |
Lesch-Nyhan Syndrome
|
1.000 |
GeneticVariation
|
disease |
BEFREE |
Lesch-Nyhan syndrome in an Indian family with novel mutation in the HPRT1 gene.
|
22183764 |
2012 |
Lesch-Nyhan Syndrome
|
1.000 |
GeneticVariation
|
disease |
BEFREE |
Lesch-Nyhan disease (LND) is an X-linked genetic disorder caused by mutations of the hypoxanthine guanine phosphoribosyltransferase (HPRT) purine biosynthesis gene and characterized by aberrant purine metabolism, deficient basal ganglia dopamine levels, dystonia, and severe neurobehavioral manifestations, including compulsive self-injurious behavior.
|
22331909 |
2012 |
Lesch-Nyhan Syndrome
|
1.000 |
Biomarker
|
disease |
BEFREE |
Because aberrant expression of miR181a is not as apparent in HPRT-deficient LND fibroblasts, the relevance of the SH-SY5Y neuroblastoma cells to human disease remains to be proven.
|
22042773 |
2012 |
Lesch-Nyhan Syndrome
|
1.000 |
AlteredExpression
|
disease |
BEFREE |
We report a case of two LNS affected members of a family with deficiency of activity of HPRT in intact cultured fibroblasts in whom mutation could not be found in the HPRT coding sequence but there was markedly decreased HPRT expression of mRNA.
|
22766437 |
2012 |
Lesch-Nyhan Syndrome
|
1.000 |
AlteredExpression
|
disease |
BEFREE |
This is the first report of a carrier and prenatal diagnosis of LND due to a defect in HPRT gene expression regulation.
|
23046577 |
2012 |
Lesch-Nyhan Syndrome
|
1.000 |
GeneticVariation
|
disease |
BEFREE |
Lesch-Nyhan disease (LND) is caused by complete deficiency of the hypoxanthine-guanine phosphoribosyltransferase enzyme.
|
22403020 |
2012 |
Lesch-Nyhan Syndrome
|
1.000 |
GeneticVariation
|
disease |
BEFREE |
Inherited mutations of hypoxanthine guanine phosphoribosyltransferase (HPRT) give rise to Lesch-Nyhan syndrome (LNS) or variants (LNV).
|
22908952 |
2012 |
Lesch-Nyhan Syndrome
|
1.000 |
GeneticVariation
|
disease |
BEFREE |
Here, we report on a case of Lesch-Nyhan syndrome with a 33-kb deletion involving exon 1 of HPRT1.
|
22132985 |
2011 |
Lesch-Nyhan Syndrome
|
1.000 |
GeneticVariation
|
disease |
BEFREE |
Here, we report five novel independent mutations in the coding region of the HPRT gene from five unrelated male patients manifesting different clinical phenotypes associated with LNS: exon 2: c.133A > G, p.45R > G; c.35A > C, p.12D > A; c.88delG; exon 7: c.530A > T, p.177D > V; and c.318 + 1G > C: IVS3 + 1G > C splice site mutation.
|
21780909 |
2011 |
Lesch-Nyhan Syndrome
|
1.000 |
GeneticVariation
|
disease |
CLINVAR |
HPRT deficiency: identification of twenty-four novel variants including an unusual deep intronic mutation.
|
22132984 |
2011 |
Lesch-Nyhan Syndrome
|
1.000 |
GeneticVariation
|
disease |
BEFREE |
Inherited mutation of hypoxanthine guanine phosphoribosyltransferase (HPRT) gives rise to Lesch-Nyhan syndrome or HPRT-related gout.
|
20544509 |
2010 |
Lesch-Nyhan Syndrome
|
1.000 |
GeneticVariation
|
disease |
BEFREE |
Splice mutations accounts for more that 16% of HPRT mutations and in most cases cause a complete LNS phenotype.
|
20544510 |
2010 |
Lesch-Nyhan Syndrome
|
1.000 |
AlteredExpression
|
disease |
BEFREE |
The heterogeneity of clinical phenotypes seen in HPRT deficiency corresponds to an inverse relationship between HPRT enzyme activity and clinical severity.
|
20558399 |
2010 |
Lesch-Nyhan Syndrome
|
1.000 |
Biomarker
|
disease |
BEFREE |
Partial deficiency of HPRT (OMIM 300323) is characterized by the effects of excess uric acid synthesis and a continuum spectrum of neurological manifestations, without the manifestations of full-blown Lesch-Nyhan syndrome.
|
20544511 |
2010 |