Reduced levels of dopamine and altered metabolism in brains of HPRT knock-out rats: a new rodent model of Lesch-Nyhan Disease [PDF]
Lesch-Nyhan disease (LND) is a severe neurological disorder caused by loss-of-function mutations in the gene encoding hypoxanthine phosphoribosyltransferase (HPRT), an enzyme required for efficient recycling of purine nucleotides.
AM Geurts+45 more
core +3 more sources
HPRTSardinia: a new point mutation causing HPRT deficiency without Lesch–Nyhan disease [PDF]
Hypoxanthine-guanine phosphoribosyltransferase (HPRT) deficiency always causing hyperuricemia presents various degrees of neurological manifestations, the most severe which is Lesch–Nyhan syndrome.
Carcassi, Aldo+9 more
core +1 more source
Self‐injurious behaviour: limbic dysregulation and stress effects in an animal model [PDF]
Background Self‐injurious behaviour (SIB) is prevalent in neurodevelopmental disorders, but its expression is highly variable within, and between diagnostic categories. This raises questions about the factors that contribute to aetiology and expression
Accardo+45 more
core +1 more source
Renal function, sex and age influence purines and pyrimidines in urine and could lead to diagnostic misinterpretation [PDF]
Glomerular filtration rate (GFR) is commonly used in clinical practice for the diagnosis and follow-up of chronic kidney disease. Screening for inborn errors of metabolism (IEM) is based on analysis of biomarkers in urine, reported by their ratio to ...
Bjerre, Anna Kristina+7 more
core +1 more source
Lesch-Nyhan syndrome: evaluation of a modified bite device to prevent bite injuries [PDF]
Lesch-Nyhan syndrome (LNS) is a serious form of hypoxanthine-guanine phosphoribosyltransferase (HPRT) deficiency, a hereditary purinemetabolismdisorder. The prevalence reported in the literature is 1/380,000 to 235,000 births.
Bossu M.+4 more
core +1 more source
Hypoxanthine-guanine phosophoribosyltransferase (HPRT) deficiency: Lesch-Nyhan syndrome [PDF]
Deficiency of hypoxanthine-guanine phosphoribosyltransferase (HPRT) activity is an inborn error of purine metabolism associated with uric acid overproduction and a continuum spectrum of neurological manifestations depending on the degree of the enzymatic
A Edwards+87 more
core +2 more sources
Developmental profile and diagnoses in children presenting with motor stereotypies [PDF]
Introduction: Motor stereotypies represent a typical example of the difficulty in distinguishing non-clinical behaviors (physiological and transient) from symptoms or among different disorders (“primary stereotypies”, associated with Autistic Spectrum ...
Baglioni, Valentina+5 more
core +1 more source
Physiological levels of folic acid reveal purine alterations in Lesch-Nyhan disease [PDF]
Lesch-Nyhan disease (LND), caused by a deficient salvage purine pathway, is characterized by severe neurological manifestations and uric acid overproduction.
Fu, Rong+6 more
core +1 more source
Efficient cDNA cloning by direct phenotypic correction of a mutant human cell line (HPRT-) using an Epstein-Barr virus derived cDNA expression vector. [PDF]
Human cells are, in general, poor recipients of foreign DNA, which has severely hampered the cloning of genes by direct phenotypic correction of deficient human cell lines after DNA mediated gene transfer. In this communication a methodology is presented
Backendorf, C.M.P. (Claude)+5 more
core +2 more sources
A Modified Intraoral Resin Mouthguard to Prevent Self-Mutilations in Lesch-Nyhan Patients [PDF]
Lesch-Nyhan syndrome, described in 1964 by Lesch and Nyhan, is a X-linked recessive disorder, occurring in 1 : 100000 to 1 : 380000 live births. LNS is characterized by a decrease in activity of hypoxanthine guanine phosphoribosyl transferase, an enzyme ...
Alessia Delucchi+4 more
core +3 more sources