Page last updated: 2024-10-18

glycine and Intellectual Disability

glycine has been researched along with Intellectual Disability in 105 studies

Intellectual Disability: Subnormal intellectual functioning which originates during the developmental period. This has multiple potential etiologies, including genetic defects and perinatal insults. Intelligence quotient (IQ) scores are commonly used to determine whether an individual has an intellectual disability. IQ scores between 70 and 79 are in the borderline range. Scores below 67 are in the disabled range. (from Joynt, Clinical Neurology, 1992, Ch55, p28)

Research Excerpts

ExcerptRelevanceReference
"Patients are affected with congenital microcephaly, psychomotor retardation, and intractable seizures."5.30Beneficial effects of L-serine and glycine in the management of seizures in 3-phosphoglycerate dehydrogenase deficiency. ( Berger, R; Blau, N; de Koning, TJ; Dorland, L; Duran, M; Gooskens, R; Jaeken, J; Poll-The, BT; Van Schaftingen, E, 1998)
"Isovaleric acidaemia was diagnosed in a 9-year-old girl with an unusual clinical presentation."5.26Isovaleric acidaemia presenting with dwarfism, cataract and congenital abnormalities. ( Batenburg-Plenter, AM; Bruinvis, L; Duran, M; Ketting, D; van Pelt, BC; Wadman, SK, 1982)
"l-arginine:glycine amidinotransferase (AGAT) and its metabolites homoarginine (hArg) and creatine have been linked to stroke pathology in both human and mouse studies."3.96Homoarginine- and Creatine-Dependent Gene Regulation in Murine Brains with l-Arginine:Glycine Amidinotransferase Deficiency. ( Arunachalam, P; Choe, CU; Gelderblom, M; Gerloff, C; Jensen, M; Magnus, T; Müller, C; Schwedhelm, E; Zeller, T, 2020)
"We determined creatine/creatinine ratio in urine samples from 1600 unrelated male patients with mental retardation and/or autism."3.74Creatine transporter deficiency: prevalence among patients with mental retardation and pitfalls in metabolite screening. ( Arias, A; Artuch, R; Briones, P; Campistol, J; Corbella, M; Fons, C; García-Villoria, J; Ormazabal, A; Pàmpols, T; Pineda, M; Poo, P; Ribes, A; Salomons, GS; Sempere, A; Vilaseca, MA, 2007)
" Biochemically, beta-ketothiolase deficiency is characterized by intermittent ketoacidosis and urinary excretion of 2-methyl-acetoacetate (MAA), 2-methyl-3-hydroxybutyrate (MHB) and tiglylglycine (TG), whereas in MHBD deficiency only MHB and tiglylglycine accumulate."3.73Inhibition of energy metabolism by 2-methylacetoacetate and 2-methyl-3-hydroxybutyrate in cerebral cortex of developing rats. ( da C Ferreira, G; Dalcin, KB; de Assis, DR; Filho, CS; Latini, A; Leipnitz, G; Maria, RC; Perry, ML; Ribeiro, CA; Rosa, RB; Schuck, PF; Wajner, M; Wannmacher, CM; Wyse, AT, 2005)
"Certain gouty subjects with excessive de novo purine synthesis are deficient in hypoxanthineguanine phosphoribosyltransferase (HG-PRTase [EC 2."3.65Mechanism of excessive purine biosynthesis in hypoxanthine-guanine phosphoribosyltransferase deficiency. ( Sorensen, LB, 1970)
" AGAT patients might benefit from oral GAA due to upgraded bioavailability and convenient utilization of the compound, while possible drawbacks (e."2.61Benefits and drawbacks of guanidinoacetic acid as a possible treatment to replenish cerebral creatine in AGAT deficiency. ( Ostojic, SM, 2019)
"Treatment with creatine monohydrate (100-800 mg/kg/day) resulted in almost complete restoration of brain creatine levels and significant improvement of myopathy."1.42Arginine:glycine amidinotransferase (AGAT) deficiency: Clinical features and long term outcomes in 16 patients diagnosed worldwide. ( Apatean, D; Battini, R; DeBrosse, S; Dessoffy, K; Dowling, MD; Edvardson, S; Eichler, F; Johnston, K; Koeller, DM; Nouioua, S; Stockler-Ipsiroglu, S; Tazir, M; Verma, A; Wierenga, AM; Wierenga, KJ; Wong, LJ; Zhang, V, 2015)
"We report 3 cases of nonketotic hyperglycinemia, 2 typical neonatal and 1 atypical, diagnosed in Pediatric Hospital of Coimbra, Portugal, and investigated at Laboratory of Biochemical Genetics in 2004 to 2010 (incidence 1:47 455; prevalence 1:782 951)."1.39Nonketotic hyperglycinemia: a cause of encephalopathy in children. ( Diogo, L; Garcia, P; Grazina, M; Henriques, R; Robalo, C; Simões, M; Veríssimo, C, 2013)
"This 13-year-old girl presented with mental retardation, as main symptom, associated with a typical pattern of biochemical and neurochemical (brain magnetic resonance spectroscopy) alterations."1.33A mutation on exon 6 of guanidinoacetate methyltransferase (GAMT) gene supports a different function for isoform a and b of GAMT enzyme. ( Antonozzi, I; Artiola, C; Bianchi, MC; Carducci, C; Di Sabato, ML; Leuzzi, V; Matricardi, M, 2006)
"Attacks of familial hemiplegic migraine (FHM) are usually associated with transient, completely reversible symptoms."1.33Severe episodic neurological deficits and permanent mental retardation in a child with a novel FHM2 ATP1A2 mutation. ( De Vries, BB; Ferrari, MD; Frants, RR; Haan, J; Koenderink, JB; Kors, EE; Stam, AH; Stroink, H; Terwindt, GM; van den Boogerd, EH; van den Heuvel, JJ; van den Maagdenberg, AM; Vanmolkot, KR, 2006)
"The C-terminal end of the fragile X mental retardation protein contains a stretch of amino acid residues that are enriched in arginine and glycine."1.31Methylation of the arginine-glycine-rich region in the fragile X mental retardation protein FMRP differentially affects RNA binding. ( Denman, RB, 2002)
"In two female siblings with mental retardation who had brain creatine deficiency that was reversible by means of oral creatine supplementation and had low urinary guanidinoacetate concentrations, AGAT deficiency was identified as a new genetic defect in creatine metabolism."1.31Arginine:glycine amidinotransferase deficiency: the third inborn error of creatine metabolism in humans. ( Alessandrì, MG; Bianchi, MC; Cioni, G; Fornai, F; Item, CB; Mühl, A; Stöckler-Ipsiroglu, S; Stromberger, C; Tosetti, M, 2001)
"Patients are affected with congenital microcephaly, psychomotor retardation, and intractable seizures."1.30Beneficial effects of L-serine and glycine in the management of seizures in 3-phosphoglycerate dehydrogenase deficiency. ( Berger, R; Blau, N; de Koning, TJ; Dorland, L; Duran, M; Gooskens, R; Jaeken, J; Poll-The, BT; Van Schaftingen, E, 1998)
"Sarcosine was undetected in other family members."1.27Sarcosinaemia in a retarded, amaurotic child. ( Krille, M; Sewell, AC; Wilhelm, I, 1986)
"Isovaleric acidaemia was diagnosed in a 9-year-old girl with an unusual clinical presentation."1.26Isovaleric acidaemia presenting with dwarfism, cataract and congenital abnormalities. ( Batenburg-Plenter, AM; Bruinvis, L; Duran, M; Ketting, D; van Pelt, BC; Wadman, SK, 1982)
"Strychnine treatment was initiated because it is a specific antagonist of glycine at postsynaptic membranes."1.26Strychnine therapy in nonketotic hyperglycinemia. ( Arneson, D; Ch'ien, LT; Chance, P; Wilroy, RS, 1979)

Research

Studies (105)

TimeframeStudies, this research(%)All Research%
pre-199076 (72.38)18.7374
1990's5 (4.76)18.2507
2000's9 (8.57)29.6817
2010's12 (11.43)24.3611
2020's3 (2.86)2.80

Authors

AuthorsStudies
Balestrino, M1
Adriano, E1
Jensen, M1
Müller, C1
Schwedhelm, E2
Arunachalam, P1
Gelderblom, M1
Magnus, T1
Gerloff, C2
Zeller, T1
Choe, CU2
Neu, A1
Hornig, S1
Sasani, A1
Isbrandt, D1
Tsikas, D1
Ostojic, SM1
Bruun, TUJ1
Sidky, S1
Bandeira, AO1
Debray, FG1
Ficicioglu, C1
Goldstein, J1
Joost, K1
Koeberl, DD1
Luísa, D1
Nassogne, MC1
O'Sullivan, S1
Õunap, K1
Schulze, A2
van Maldergem, L1
Salomons, GS5
Mercimek-Andrews, S1
Garza-Lopez, E1
Lopez, JA1
Hagen, J1
Sheffer, R1
Meiner, V1
Lee, A1
Amin, JB1
Leng, X1
Gochman, A1
Zhou, HX1
Wollmuth, LP1
Nouioua, S2
Cheillan, D2
Zaouidi, S1
Amedjout, N1
Kessaci, F1
Boulahdour, N1
Hamadouche, T1
Tazir, M2
Stockler-Ipsiroglu, S4
van Karnebeek, C1
Longo, N1
Korenke, GC1
Mercimek-Mahmutoglu, S1
Marquart, I1
Barshop, B1
Grolik, C1
Schlune, A1
Angle, B1
Araújo, HC1
Coskun, T1
Diogo, L2
Geraghty, M1
Haliloglu, G1
Konstantopoulou, V1
Leuzzi, V3
Levtova, A1
Mackenzie, J1
Maranda, B1
Mhanni, AA1
Mitchell, G1
Morris, A1
Newlove, T1
Renaud, D1
Scaglia, F1
Valayannopoulos, V2
van Spronsen, FJ1
Verbruggen, KT1
Yuskiv, N1
Nyhan, W1
Braissant, O2
Pitt, JJ1
Tzanakos, N1
Nguyen, T1
Apatean, D1
Battini, R1
DeBrosse, S1
Dessoffy, K1
Edvardson, S1
Eichler, F1
Johnston, K1
Koeller, DM1
Verma, A1
Dowling, MD1
Wierenga, KJ1
Wierenga, AM1
Zhang, V1
Wong, LJ1
Chen, W1
Shieh, C1
Swanger, SA1
Tankovic, A1
Au, M1
McGuire, M1
Tagliati, M1
Graham, JM1
Madan-Khetarpal, S1
Traynelis, SF1
Yuan, H1
Pierson, TM1
Boddaert, N1
Chabli, A1
Barbier, V1
Desguerre, I1
Philippe, A1
Afenjar, A1
Mazzuca, M1
Munnich, A1
de Keyzer, Y1
Jakobs, C3
de Lonlay, P1
Veríssimo, C1
Garcia, P1
Simões, M1
Robalo, C1
Henriques, R1
Grazina, M1
Denman, RB1
MELLMAN, WJ1
BARNESS, LA3
TEDESCO, TA1
BESSELMAN, D1
EFRON, ML1
YOUNG, D1
MOSER, HW1
MACCREADY, RA1
DINGMAN, HF1
WRIGHT, SW1
STAMBAUGH, R1
DAVIDSON, DT1
NYHAN, WL7
CHILDS, B1
Caldeira Araújo, H1
Smit, W1
Verhoeven, NM2
Silva, S1
Vasconcelos, R1
Tomás, H1
Tavares de Almeida, I1
Duran, M3
Rosa, RB1
Schuck, PF1
de Assis, DR1
Latini, A1
Dalcin, KB1
Ribeiro, CA1
da C Ferreira, G1
Maria, RC1
Leipnitz, G1
Perry, ML1
Filho, CS1
Wyse, AT1
Wannmacher, CM1
Wajner, M1
Carducci, C2
Matricardi, M1
Bianchi, MC2
Di Sabato, ML1
Artiola, C1
Antonozzi, I2
Vanmolkot, KR1
Stroink, H1
Koenderink, JB1
Kors, EE1
van den Heuvel, JJ1
van den Boogerd, EH1
Stam, AH1
Haan, J1
De Vries, BB1
Terwindt, GM1
Frants, RR1
Ferrari, MD1
van den Maagdenberg, AM1
Arias, A1
Corbella, M1
Fons, C1
Sempere, A1
García-Villoria, J1
Ormazabal, A1
Poo, P1
Pineda, M1
Vilaseca, MA1
Campistol, J1
Briones, P1
Pàmpols, T1
Ribes, A1
Artuch, R1
Henry, H1
Waisman, HA2
Gerritsen, T2
Kang, ES1
Seyer, J1
Todd, TA1
Herrera, C1
Walker, V1
Smythe, PJ1
Cook, NJ1
Ball, NA1
Veall, RM1
Whiteman, P1
de Céspedes, C1
Santisteban, I1
Ortiz, D1
Rojas, E1
Rodríguez, J1
Nanne, C1
Orlich, J1
Flannery, DB1
Pellock, J1
Bousounis, D1
Hunt, P1
Nance, C1
Wolf, B1
Bruinvis, L1
Ketting, D1
Wadman, SK1
van Pelt, BC1
Batenburg-Plenter, AM1
MacDermot, KD1
Nelson, W1
Reichert, CM1
Schulman, JD1
Christodoulou, J1
Kure, S1
Hayasaka, K3
Clarke, JT1
de Koning, TJ1
Dorland, L1
Gooskens, R1
Van Schaftingen, E1
Jaeken, J1
Blau, N1
Berger, R2
Poll-The, BT1
Ai, LS1
Lin, CH1
Hsieh, M1
Li, C1
van der Knaap, MS1
Maaswinkel-Mooij, P1
Pouwels, PJ1
Onkenhout, W1
Peeters, EA1
Item, CB1
Stromberger, C1
Mühl, A1
Alessandrì, MG1
Tosetti, M1
Fornai, F1
Cioni, G1
Frazier, DM1
Summer, GK1
Chamberlin, HR1
Arneson, D1
Ch'ien, LT1
Chance, P1
Wilroy, RS1
Kato, T1
Shuman, RM1
Leech, RW1
Scott, CR2
Brun, A1
Börjeson, M1
Hultberg, B1
Sjöblad, S1
Akesson, H1
Litwin, E1
Law, EA1
Sardharwalla, IB1
von Wendt, L1
Similä, S2
Hirvasniemi, A1
Suvanto, E1
de Groot, CJ3
Boeli Everts, V1
Touwen, BC1
Hommes, FA2
Brady, RO1
Krieger, I2
Winbaum, ES1
Eisenbrey, AB1
Statter, M1
Ben-Zvi, A1
Shina, A1
Schein, R1
Russell, A1
Kolvraa, S1
Rasmussen, K2
Brandt, NJ2
Stern, J2
Antoshechkin, AG1
Seriogina, IA1
Maximova, LA1
Morano, S1
Moretti, F1
Fabbrizi, F1
Sewell, AC1
Krille, M1
Wilhelm, I1
Singer, HS1
Valle, D1
Tada, K2
Haan, EA1
Kirby, DM1
Danks, DM2
Levy, HL2
Erickson, AM1
Lott, IT1
Kurtz, DJ1
Holmgren, G1
Moore, PT1
Martin, MC1
Coffey, VP1
Chmaleva, NP1
Kalmykova, LG1
Bejar, RL1
Smith, GF1
Park, S1
Spellacy, WN1
Wolfson, SL1
Daniel, WL1
Tosi, T1
Brandt, S1
Schnoheyder, F1
Mollica, F1
Pavone, L1
Antener, I1
Ionasescu, V1
Stegink, L1
Mueller, S1
Weinstein, M1
Reploh, H1
Gröbe, H1
Diekmann, L1
Palm, D1
von Bassewitz, DB1
Jenett, W1
Ben-Ami, E1
Burstein, I1
Cohen, BE1
Szeinberg, A1
Leiber, B1
Olbrich, G1
Bartsocas, CS2
Erbe, RW1
Koepp, P1
Grüttner, R1
Rybak, C1
Balci, S1
Say, B1
Firat, T1
Tippett, P1
Hart, ZH1
Sweetman, L2
Lesch, M1
Menne, F1
Emery, FA1
Goldie, L1
Davison, AN2
Seppäläinen, AM1
Baumgartner, R1
Ando, T2
Schweikhardt, F1
Hessing, J1
Troelstra, JA1
Sorensen, LB1
van der Zee, SP1
Lommen, EJ1
Trijbels, JM1
Schretlen, ED1
Ghadimi, H1
Bhalla, CK1
Kirchenbaum, DM1
Agrawal, HC1
Bone, AH1
Ferdinand, W1
Gordon, RR1
Owen, G1
Clark, SH1
Teng, CC1
Swedberg, KR1
Perry, TL1
Bunting, R1
Tischler, B1
Hansen, S1
Diamond, S1
Weppler, VC1
Rosenberg, LE2
Lilljeqvist, AC1
Hsia, YE1
Durant, JL1
Elsas, LJ1
Hooft, C1
Van Nevel, C1
De Schaepdryver, AF1
Other, A1
Morrow, G2
Auerbach, VH1
DiGeorge, AM1
Crawford, JD1
Thier, SO1
James, JA1
Teberg, AJ1
Nelson, LG1
Hirsch, W1
Mex, A1
Vogel, F1
Broyer, M1
Watts, RW1
Mann, TP1
Kaveggia, E1

Reviews

4 reviews available for glycine and Intellectual Disability

ArticleYear
Benefits and drawbacks of guanidinoacetic acid as a possible treatment to replenish cerebral creatine in AGAT deficiency.
    Nutritional neuroscience, 2019, Volume: 22, Issue:5

    Topics: Amidinotransferases; Amino Acid Metabolism, Inborn Errors; Clinical Trials as Topic; Creatine; Devel

2019
AGAT, GAMT and SLC6A8 distribution in the central nervous system, in relation to creatine deficiency syndromes: a review.
    Journal of inherited metabolic disease, 2008, Volume: 31, Issue:2

    Topics: Amidinotransferases; Amino Acid Metabolism, Inborn Errors; Animals; Brain; Creatine; Developmental D

2008
[Feeble mindedness caused by genetic disorders of amino acid metabolism].
    Hippokrates, 1968, May-31, Volume: 39, Issue:10

    Topics: Amino Acid Metabolism, Inborn Errors; Ammonia; Arginine; Citrulline; Glycine; Hartnup Disease; Histi

1968
Too much of a good thing.
    Food and cosmetics toxicology, 1971, Volume: 9, Issue:1

    Topics: Amino Acids; Animals; Blood Pressure; Central Nervous System; Eye Diseases; Food Additives; Glutamat

1971

Trials

1 trial available for glycine and Intellectual Disability

ArticleYear
Effects of the uricogenic agent, 2-ethylamino-1,3,4-thiadiazole in hypoxanthine-guanine phosphoribosyl transferase deficiency.
    Metabolism: clinical and experimental, 1968, Volume: 17, Issue:10

    Topics: Adolescent; Athetosis; Azoles; Carbon Isotopes; Cerebral Palsy; Child; Chorea; Clinical Trials as To

1968

Other Studies

100 other studies available for glycine and Intellectual Disability

ArticleYear
Presence of guanidinoacetate may compensate creatine absence and account for less statin-induced muscle damage in GAMT-deficient compared to AGAT-deficient mice.
    Amino acids, 2020, Volume: 52, Issue:4

    Topics: Amidinotransferases; Amino Acid Metabolism, Inborn Errors; Animals; Creatine; Developmental Disabili

2020
Homoarginine- and Creatine-Dependent Gene Regulation in Murine Brains with l-Arginine:Glycine Amidinotransferase Deficiency.
    International journal of molecular sciences, 2020, Mar-09, Volume: 21, Issue:5

    Topics: Amidinotransferases; Amino Acid Metabolism, Inborn Errors; Animals; Arginine; Brain; Creatine; Devel

2020
Creatine, guanidinoacetate and homoarginine in statin-induced myopathy.
    Amino acids, 2020, Volume: 52, Issue:6-7

    Topics: Amidinotransferases; Amino Acid Metabolism, Inborn Errors; Animals; Creatine; Developmental Disabili

2020
Treatment outcome of creatine transporter deficiency: international retrospective cohort study.
    Metabolic brain disease, 2018, Volume: 33, Issue:3

    Topics: Adolescent; Adult; Arginine; Child; Child, Preschool; Creatine; Creatinine; Female; Genotype; Glycin

2018
Role of a conserved glutamine in the function of voltage-gated Ca
    The Journal of biological chemistry, 2018, 09-14, Volume: 293, Issue:37

    Topics: Amino Acid Sequence; Calcium Channels, L-Type; Calcium Signaling; Conserved Sequence; Exome Sequenci

2018
A conserved glycine harboring disease-associated mutations permits NMDA receptor slow deactivation and high Ca
    Nature communications, 2018, 09-14, Volume: 9, Issue:1

    Topics: Animals; Brain Diseases; Calcium; Cell Membrane Permeability; Child; Child, Preschool; Developmental

2018
Creatine deficiency syndrome. A treatable myopathy due to arginine-glycine amidinotransferase (AGAT) deficiency.
    Neuromuscular disorders : NMD, 2013, Volume: 23, Issue:8

    Topics: Amidinotransferases; Amino Acid Metabolism, Inborn Errors; Brain; Child; Creatine; Developmental Dis

2013
Guanidinoacetate methyltransferase (GAMT) deficiency: outcomes in 48 individuals and recommendations for diagnosis, treatment and monitoring.
    Molecular genetics and metabolism, 2014, Volume: 111, Issue:1

    Topics: Adolescent; Adult; Arginine; Brain; Child; Child, Preschool; Combined Modality Therapy; Creatine; Fe

2014
GAMT deficiency: 20 years of a treatable inborn error of metabolism.
    Molecular genetics and metabolism, 2014, Volume: 111, Issue:1

    Topics: Arginine; Creatine; Female; Glycine; Guanidinoacetate N-Methyltransferase; Humans; Intellectual Disa

2014
Newborn screening for guanidinoacetate methyl transferase deficiency.
    Molecular genetics and metabolism, 2014, Volume: 111, Issue:3

    Topics: Arginine; Creatine; Diet; Female; Glycine; Guanidinoacetate N-Methyltransferase; Humans; Intellectua

2014
Arginine:glycine amidinotransferase (AGAT) deficiency: Clinical features and long term outcomes in 16 patients diagnosed worldwide.
    Molecular genetics and metabolism, 2015, Volume: 116, Issue:4

    Topics: Adolescent; Amidinotransferases; Amino Acid Metabolism, Inborn Errors; Child; Child, Preschool; Crea

2015
GRIN1 mutation associated with intellectual disability alters NMDA receptor trafficking and function.
    Journal of human genetics, 2017, Volume: 62, Issue:6

    Topics: Adult; Cell Membrane; Child; Female; Glycine; Humans; Intellectual Disability; Male; Mutation; Nerve

2017
Treatment by oral creatine, L-arginine and L-glycine in six severely affected patients with creatine transporter defect.
    Journal of inherited metabolic disease, 2012, Volume: 35, Issue:1

    Topics: Administration, Oral; Adolescent; Amino Acid Transport Disorders, Inborn; Arginine; Child; Child, Pr

2012
Nonketotic hyperglycinemia: a cause of encephalopathy in children.
    Journal of child neurology, 2013, Volume: 28, Issue:2

    Topics: Child; Female; Glycine; Humans; Hyperglycinemia, Nonketotic; Intellectual Disability; Lennox Gastaut

2013
Methylation of the arginine-glycine-rich region in the fragile X mental retardation protein FMRP differentially affects RNA binding.
    Cellular & molecular biology letters, 2002, Volume: 7, Issue:3

    Topics: Arginine; Binding Sites; Cloning, Molecular; DNA Methylation; Escherichia coli; Fragile X Mental Ret

2002
INDOLYLACROYL GLYCINE EXCRETION IN A FAMILY WITH MENTAL RETARDATION.
    Clinica chimica acta; international journal of clinical chemistry, 1963, Volume: 8

    Topics: Amino Acid Metabolism, Inborn Errors; Body Fluids; Child; Glycine; Humans; Hydrogen-Ion Concentratio

1963
A SIMPLE CHROMATOGRAPHIC SCREENING TEST FOR THE DETECTION OF DISORDERS OF AMINO ACID METABOLISM. A TECHNIC USING WHOLE BLOOD OR URINE COLLECTED ON FILTER PAPER.
    The New England journal of medicine, 1964, Jun-25, Volume: 270

    Topics: Amino Acid Metabolism, Inborn Errors; Amino Acids; Blood Chemical Analysis; Chromatography; Citrulli

1964
A MULTIVARIATE ANALYSIS OF AMINO-ACID EXCRETIONS.
    Journal of mental deficiency research, 1964, Volume: 8

    Topics: Alanine; Amino Acid Metabolism, Inborn Errors; Amino Acids; Biomedical Research; Child; Chromatograp

1964
EVALUATION OF THE AMINO ACID EXCRETION PATTERN OF MENTAL RETARDATES AS A SCREENING TECHNIQUE FOR INBORN ERRORS OF METABOLISM.
    The Journal of pediatrics, 1964, Volume: 65

    Topics: Adolescent; Alanine; Amino Acid Metabolism, Inborn Errors; Child; Chromatography; Creatine; Creatini

1964
HYPERGLYCINEMIA. V. THE MISCIBLE POOL AND TURNOVER RATE OF GLYCINE AND THE FORMATION OF SERINE.
    The Journal of clinical investigation, 1964, Volume: 43

    Topics: Amino Acid Metabolism, Inborn Errors; Amino Acids; Blood; Child; Chromatography; Glycine; Humans; In

1964
Guanidinoacetate methyltransferase deficiency identified in adults and a child with mental retardation.
    American journal of medical genetics. Part A, 2005, Mar-01, Volume: 133A, Issue:2

    Topics: Abnormalities, Multiple; Adult; Alleles; Amino Acid Metabolism, Inborn Errors; Child; Creatinine; DN

2005
Inhibition of energy metabolism by 2-methylacetoacetate and 2-methyl-3-hydroxybutyrate in cerebral cortex of developing rats.
    Journal of inherited metabolic disease, 2005, Volume: 28, Issue:4

    Topics: 3-Hydroxyacyl CoA Dehydrogenases; Acetates; Acetoacetates; Acetyl-CoA C-Acyltransferase; Acidosis; A

2005
A mutation on exon 6 of guanidinoacetate methyltransferase (GAMT) gene supports a different function for isoform a and b of GAMT enzyme.
    Molecular genetics and metabolism, 2006, Volume: 87, Issue:1

    Topics: Adolescent; DNA Mutational Analysis; Exons; Female; Glycine; Guanidinoacetate N-Methyltransferase; H

2006
Severe episodic neurological deficits and permanent mental retardation in a child with a novel FHM2 ATP1A2 mutation.
    Annals of neurology, 2006, Volume: 59, Issue:2

    Topics: Arginine; Blotting, Northern; Blotting, Western; Child; DNA Mutational Analysis; Electroencephalogra

2006
Creatine transporter deficiency: prevalence among patients with mental retardation and pitfalls in metabolite screening.
    Clinical biochemistry, 2007, Volume: 40, Issue:16-17

    Topics: Autistic Disorder; Child; Child, Preschool; Creatine; Creatinine; Glycine; Humans; Infant; Intellect

2007
Treatment of hyperglycinemia.
    American journal of diseases of children (1960), 1967, Volume: 113, Issue:1

    Topics: Acidosis; Agranulocytosis; Amino Acid Metabolism, Inborn Errors; Blood Platelet Disorders; Child; Ch

1967
Hypersarcosinemia. A newly described inborn error of metabolism.
    American journal of diseases of children (1960), 1967, Volume: 113, Issue:1

    Topics: Amino Acid Metabolism, Inborn Errors; Animals; Erythrocytes; Female; Glycine; Glyoxylates; Humans; I

1967
Variability in the phenotypic expression of abnormal sarcosine metabolism in a family.
    Human genetics, 1983, Volume: 64, Issue:1

    Topics: Adult; Amino Acid Metabolism, Inborn Errors; Child, Preschool; Female; Genetic Variation; Glycine; H

1983
Urinary screening for abnormalities of amino acid or mucopolysaccharide metabolism in patients in a hospital for the mentally handicapped in Wessex.
    Journal of mental deficiency research, 1983, Volume: 27 (Pt 2)

    Topics: Adult; Amino Acid Metabolism, Inborn Errors; Amino Acids; Cystinuria; Electrophoresis, Cellulose Ace

1983
[Patterns of urinary aminoacid excretion in exceptional children and patients with mental disorders in Costa Rica].
    Revista de biologia tropical, 1983, Volume: 31, Issue:1

    Topics: Alanine; Amino Acid Metabolism, Inborn Errors; Amino Acids; Aminoisobutyric Acids; Child; Costa Rica

1983
Nonketotic hyperglycinemia in two retarded adults: a mild form of infantile nonketotic hyperglycinemia.
    Neurology, 1983, Volume: 33, Issue:8

    Topics: Adolescent; Adult; Age Factors; Female; Glycine; Humans; Intellectual Disability; Male; Metabolism,

1983
Isovaleric acidaemia presenting with dwarfism, cataract and congenital abnormalities.
    Journal of inherited metabolic disease, 1982, Volume: 5, Issue:2

    Topics: Abnormalities, Multiple; Amino Acid Metabolism, Inborn Errors; Cataract; Child; Dwarfism; Female; Gl

1982
Attempts at use of strychnine sulfate in the treatment of nonketotic hyperglycinemia.
    Pediatrics, 1980, Volume: 65, Issue:1

    Topics: Amino Acid Metabolism, Inborn Errors; Brain; Glycine; Humans; Infant; Infant, Newborn; Intellectual

1980
Atypical nonketotic hyperglycinemia confirmed by assay of the glycine cleavage system in lymphoblasts.
    The Journal of pediatrics, 1993, Volume: 123, Issue:1

    Topics: Adolescent; Amino Acid Metabolism, Inborn Errors; Cells, Cultured; Female; Glycine; Humans; Intellec

1993
Beneficial effects of L-serine and glycine in the management of seizures in 3-phosphoglycerate dehydrogenase deficiency.
    Annals of neurology, 1998, Volume: 44, Issue:2

    Topics: Carbohydrate Dehydrogenases; Child; Child, Preschool; Drug Therapy, Combination; Electroencephalogra

1998
Arginine methylation of a glycine and arginine rich peptide derived from sequences of human FMRP and fibrillarin.
    Proceedings of the National Science Council, Republic of China. Part B, Life sciences, 1999, Volume: 23, Issue:4

    Topics: Amino Acid Sequence; Animals; Arginine; Brain; Chromatography, High Pressure Liquid; Chromosomal Pro

1999
Mental retardation and behavioral problems as presenting signs of a creatine synthesis defect.
    Annals of neurology, 2000, Volume: 47, Issue:4

    Topics: Aspartic Acid; Body Fluids; Brain Diseases, Metabolic; Child, Preschool; Creatine; Diagnosis, Differ

2000
Arginine:glycine amidinotransferase deficiency: the third inborn error of creatine metabolism in humans.
    American journal of human genetics, 2001, Volume: 69, Issue:5

    Topics: Amidinotransferases; Amino Acid Metabolism, Inborn Errors; Amino Acid Sequence; Base Sequence; Brain

2001
Hyperglycinuria and hyperglycinemia in two siblings with mild developmental delays.
    American journal of diseases of children (1960), 1978, Volume: 132, Issue:8

    Topics: Amino Acid Metabolism, Inborn Errors; Child, Preschool; Developmental Disabilities; Electrophoresis;

1978
Strychnine therapy in nonketotic hyperglycinemia.
    Pediatrics, 1979, Volume: 63, Issue:3

    Topics: Benzoates; Clonazepam; Drug Therapy, Combination; Electroencephalography; Enzymes; Female; Glycine;

1979
Hyperglycinuria: a family report.
    Nagoya journal of medical science, 1979, Volume: 42, Issue:1-2

    Topics: Child, Preschool; Cleft Palate; Female; Glycine; Heterozygote; Humans; Intellectual Disability; Rena

1979
The neuropathology of the nonketotic and ketotic hyperglycinemias: three cases.
    Neurology, 1978, Volume: 28, Issue:2

    Topics: Amino Acid Metabolism, Inborn Errors; Child, Preschool; Corpus Callosum; Demyelinating Diseases; Fem

1978
Neonatal non-ketotic hyperglycinemia: a clinical, biochemical and neuropathological study including electronmicroscopic findings.
    Neuropadiatrie, 1979, Volume: 10, Issue:2

    Topics: Amino Acid Metabolism, Inborn Errors; Brain; Cerebral Hemorrhage; Female; Glycine; Humans; Infant, N

1979
A new type of heterozygote of familial renal iminoglycinuria.
    Monographs in human genetics, 1978, Volume: 9

    Topics: Female; Genetic Carrier Screening; Glycine; Humans; Hydroxyproline; Intellectual Disability; Male; M

1978
Nonketotic hyperglycinemia: a clinical analysis of 19 Finnish patients.
    Monographs in human genetics, 1978, Volume: 9

    Topics: Amino Acid Metabolism, Inborn Errors; Female; Finland; Glycine; Humans; Infant; Infant, Newborn; Int

1978
Non-ketotic hyperglycinemia (NKH): an inborn error of metabolism affecting brain function exclusively.
    Progress in brain research, 1978, Volume: 48

    Topics: Amino Acid Metabolism, Inborn Errors; Animals; Behavior, Animal; Glycine; Humans; Intellectual Disab

1978
Inherited metabolic diseases of the nervous system.
    Science (New York, N.Y.), 1976, Aug-27, Volume: 193, Issue:4255

    Topics: Amino Acid Metabolism, Inborn Errors; Aspartylglucosaminuria; Carbohydrate Metabolism, Inborn Errors

1976
Cerebrospinal fluid glycine in nonketotic hyperglycinemic: effect of treatment with sodium benzoate and a ventricular shunt.
    Metabolism: clinical and experimental, 1977, Volume: 26, Issue:5

    Topics: Amino Acid Metabolism, Inborn Errors; Benzoates; Cerebrospinal Fluid Shunts; Female; Follow-Up Studi

1977
Familial iminoglycinuria with normal intestinal absorption of glycine and imino acids in association with profound mental retardation, a possible "cerebral phenotype".
    Helvetica paediatrica acta, 1976, Volume: 31, Issue:2

    Topics: Amino Acid Metabolism, Inborn Errors; Female; Glycine; Humans; Hydroxyproline; Imino Acids; Infant;

1976
D-glyceric acidemia: biohcemical studies of a new syndrome.
    Pediatric research, 1976, Volume: 10, Issue:10

    Topics: Alcohol Oxidoreductases; Amino Acid Metabolism, Inborn Errors; Child, Preschool; Chromatography, Gas

1976
Biochemistry of mental retardation.
    Proceedings of the Royal Society of Medicine, 1975, Volume: 68, Issue:9

    Topics: Aged; Citrulline; Female; Glycine; Histidine; Humans; Infant; Infant, Newborn; Intellectual Disabili

1975
Identification of 4-methoxybenzoyl-N-glycine in urine by gas chromatography/mass spectrometry.
    Biological mass spectrometry, 1991, Volume: 20, Issue:9

    Topics: Anisoles; Child; Child, Preschool; Gas Chromatography-Mass Spectrometry; Glycine; Hippurates; Humans

1991
Non-ketotic hyperglycinaemia: a new case with late onset.
    Journal of inherited metabolic disease, 1990, Volume: 13, Issue:2

    Topics: Amino Acid Metabolism, Inborn Errors; Child; Glycine; Humans; Intellectual Disability; Male

1990
Sarcosinaemia in a retarded, amaurotic child.
    European journal of pediatrics, 1986, Volume: 144, Issue:5

    Topics: Amino Acid Metabolism, Inborn Errors; Blindness; Female; Glycine; Humans; Infant; Intellectual Disab

1986
Nonketotic hyperglycinemia: studies in an atypical variant.
    Neurology, 1989, Volume: 39, Issue:2 Pt 1

    Topics: Adult; Developmental Disabilities; Glycine; Humans; Intellectual Disability; Ketosis; Male; Metaboli

1989
Difficulties in assessing the effect of strychnine on the outcome of non-ketotic hyperglycinaemia. Observations on sisters with a mild T-protein defect.
    European journal of pediatrics, 1986, Volume: 145, Issue:4

    Topics: Adolescent; Aminomethyltransferase; Arginine; Benzoates; Benzoic Acid; Child, Preschool; Drug Evalua

1986
Isovaleric acidemia: results of family study and dietary treatment.
    Pediatrics, 1973, Volume: 52, Issue:1

    Topics: Amino Acid Metabolism, Inborn Errors; Amino Acids; Child; Child, Preschool; Developmental Disabiliti

1973
Urinary metabolic screening of mentally retarded patients from institutions in the northern part of Sweden.
    Human heredity, 1973, Volume: 23, Issue:6

    Topics: Abnormalities, Multiple; Adolescent; Adult; Amino Acids; Child; Eye Diseases; Female; Glycine; Glyco

1973
Screening for biochemical abnormalities in the urine of the mentally handicapped in Dublin.
    Journal of mental deficiency research, 1972, Volume: 16, Issue:2

    Topics: Adolescent; Adult; Amino Acids; Arginine; Child; Child, Preschool; Chromatography, Paper; Cystinuria

1972
[A population-biochemical study of mentally retarded persons in the Tula region (a geneologic analysis of families of probands with hereditary metabolic defects)].
    Genetika, 1974, Volume: 10, Issue:10

    Topics: Amino Acid Metabolism, Inborn Errors; Glycine; Homocystinuria; Humans; Inbreeding; Intellectual Disa

1974
Cerebral gigantism: concentrations of amino acids in plasma and muscle.
    The Journal of pediatrics, 1970, Volume: 76, Issue:1

    Topics: Age Determination by Skeleton; Amino Acids; Arginine; Blood Glucose; Body Height; Child, Preschool;

1970
Mental retardation associated with an unusual amino acid excretion pattern.
    Clinical genetics, 1974, Volume: 6, Issue:1

    Topics: Acid Phosphatase; Adult; Alanine; Brain Chemistry; Cerebrosides; Child, Preschool; Chromatography, P

1974
Letter: Hyperglycericacidaemia with hyperglycinaemia: a new inborn error of metabolism.
    British medical journal, 1974, Nov-09, Volume: 4, Issue:5940

    Topics: Child, Preschool; Chromatography, Thin Layer; Glyceric Acids; Glycine; Humans; Intellectual Disabili

1974
Familial hyperprolinemia without mental retardation and hereditary nephropathy.
    Monographs in human genetics, 1972, Volume: 6

    Topics: Amino Acid Metabolism, Inborn Errors; Epilepsy; Female; Glycine; Humans; Infant; Intellectual Disabi

1972
Amino acid abnormality in Sjögren-Larsson syndrome.
    Archives of neurology, 1973, Volume: 28, Issue:3

    Topics: Adolescent; Amino Acid Metabolism, Inborn Errors; Dental Enamel Hypoplasia; Epilepsy; Ethylamines; G

1973
The clinical findings in a patient with nonketotic hyperglycinemia.
    Zeitschrift fur Kinderheilkunde, 1973, Volume: 114, Issue:3

    Topics: Amino Acid Metabolism, Inborn Errors; Diet Therapy; Glycine; Humans; Infant; Intellectual Disability

1973
Cysteine peptiduria in a mentally retarded patient.
    Clinica chimica acta; international journal of clinical chemistry, 1973, May-30, Volume: 45, Issue:4

    Topics: Adolescent; Amino Acids; Autoanalysis; Chromatography, Ion Exchange; Chromatography, Paper; Cysteine

1973
[Lesch-Nyhan syndrome].
    Monatsschrift fur Kinderheilkunde, 1973, Volume: 121, Issue:1

    Topics: Aggression; Athetosis; Bites, Human; Chorea; Glycine; Humans; Hyperlipidemias; Intellectual Disabili

1973
Lowe's syndrome. Absence of amino acid transport defect in cultured fibroblasts.
    Acta paediatrica Scandinavica, 1973, Volume: 62, Issue:6

    Topics: Ammonia; Biological Transport; Carbon Radioisotopes; Culture Techniques; Eye Diseases; Fibroblasts;

1973
Clinical finding and therapeutic problems in non-ketotic hyperglycinemia.
    Helvetica paediatrica acta, 1973, Volume: 28, Issue:5

    Topics: Amino Acid Metabolism, Inborn Errors; Carbon Radioisotopes; Diet Therapy; Glycine; Humans; Hypotensi

1973
Corneal opacity, microphthalmia, mental retardation, microcephaly and generalized muscular spasticity associated with hyperglycinemia.
    Clinical genetics, 1974, Volume: 5, Issue:1

    Topics: Alkaline Phosphatase; Calcium; Cerebral Palsy; Chromosomes; Consanguinity; Corneal Opacity; Female;

1974
The clinical and biochemical findings in three cases of hypersarcosinemia and one case of transient hypersarcosinuria associated with folic acid deficiency.
    Helvetica paediatrica acta, 1974, Volume: 29, Issue:3

    Topics: Adolescent; Amino Acid Metabolism, Inborn Errors; Anemia, Macrocytic; Electrophoresis; Female; Folic

1974
Valine-sensitive nonketotic hyperglycinemia. Case report.
    The Journal of pediatrics, 1974, Volume: 85, Issue:1

    Topics: Administration, Oral; Amino Acid Metabolism, Inborn Errors; Benzoates; Brain Diseases; Brain Stem; C

1974
Hyperprolinaemia type 2.
    Journal of mental deficiency research, 1968, Volume: 12, Issue:3

    Topics: Adolescent; Chromatography, Paper; Electroencephalography; Epilepsy, Absence; Female; Glycine; Human

1968
Mental retardation and the biochemistry of the developing brain.
    Proceedings of the Royal Society of Medicine, 1972, Volume: 65, Issue:7

    Topics: Amino Acid Metabolism, Inborn Errors; Amino Acids; Animals; Brain; Glycine; Humans; Intellectual Dis

1972
Electroencephalographic findings in three patients with nonketotic hyperglycinemia.
    Epilepsia, 1971, Volume: 12, Issue:1

    Topics: Amino Acid Metabolism, Inborn Errors; Electroencephalography; Glycine; Humans; Infant; Infant, Newbo

1971
Nonketotic hyperglycinemia.
    The Journal of pediatrics, 1969, Volume: 75, Issue:6

    Topics: Agranulocytosis; Amino Acid Metabolism, Inborn Errors; Benzoates; Body Weight; Carbon Isotopes; Diet

1969
[Amino acid excretion in urine and enzyme activities in blood of persons from 3 families with mental deficiency].
    Acta psychiatrica Scandinavica, 1969, Volume: 45, Issue:4

    Topics: Acid Phosphatase; Adolescent; Adult; Alanine; Alkaline Phosphatase; Amino Acids; Aspartate Aminotran

1969
Nonketotic hyperglycinemia: an in vitro study of the glycine-serine conversion in liver of three patients and the effect of dietary methionine.
    Pediatric research, 1970, Volume: 4, Issue:3

    Topics: Acidosis; Amino Acid Metabolism, Inborn Errors; Biopsy; Carbon Isotopes; Culture Techniques; Diet Th

1970
Mechanism of excessive purine biosynthesis in hypoxanthine-guanine phosphoribosyltransferase deficiency.
    The Journal of clinical investigation, 1970, Volume: 49, Issue:5

    Topics: Adult; Allopurinol; Athetosis; Carbon Isotopes; Child; Chorea; Compulsive Behavior; Deficiency Disea

1970
The influence of adenine on the clinical features and purine metabolism in the Lesch-Nyhan syndrome.
    Acta paediatrica Scandinavica, 1970, Volume: 59, Issue:3

    Topics: Adenine; Allopurinol; Athetosis; Bone Marrow; Carbon Isotopes; Child; Child, Preschool; Chorea; Comp

1970
The significance of the deficiency state in Lesch-Nyhan disease.
    Acta paediatrica Scandinavica, 1970, Volume: 59, Issue:3

    Topics: Allopurinol; Amino Acids; Athetosis; Carbon Isotopes; Child, Preschool; Chorea; Compulsive Behavior;

1970
Effect of phenylalanine on protein synthesis in the developing rat brain.
    The Biochemical journal, 1970, Volume: 117, Issue:2

    Topics: Acetates; Age Factors; Animals; Brain; Carbon Isotopes; Female; Glycine; Humans; Intellectual Disabi

1970
Nonketotic hyperglycinaemia. Clinical findings and amino acid analyses on the plasma of a new case.
    Clinica chimica acta; international journal of clinical chemistry, 1970, Volume: 30, Issue:3

    Topics: Acidosis; Amino Acid Metabolism, Inborn Errors; Child, Preschool; Diet Therapy; Dietary Proteins; Fe

1970
Clinical and cellular studies of sarcosinemia.
    The Journal of pediatrics, 1970, Volume: 77, Issue:5

    Topics: Amino Acid Metabolism, Inborn Errors; Child, Preschool; Culture Techniques; Fibroblasts; Glycine; Hu

1970
Unrecognized maternal biochemical disease: an uncommon cause of mental retardation in children.
    Journal of mental deficiency research, 1970, Volume: 14, Issue:1

    Topics: Child; Cystinuria; Female; Glycine; Humans; Infant, Newborn; Intellectual Disability; Lysine; Metabo

1970
Methylmalonic aciduria. An inborn error leading to metabolic acidosis, long-chain ketonuria and intermittent hyperglycinemia.
    The New England journal of medicine, 1968, Jun-13, Volume: 278, Issue:24

    Topics: Acidosis; Amino Acid Metabolism, Inborn Errors; Chromatography, Thin Layer; Coenzyme A; Dietary Prot

1968
Importance of the single case.
    The New England journal of medicine, 1968, Jun-13, Volume: 278, Issue:24

    Topics: Acidosis; Amino Acid Metabolism, Inborn Errors; Coenzyme A; Glycine; Humans; Infant; Intellectual Di

1968
Familial iminoglycinuria. An inborn error of renal tubular transport.
    The New England journal of medicine, 1968, Jun-27, Volume: 278, Issue:26

    Topics: Adult; Child; Chromosome Aberrations; Chromosome Disorders; Deafness; Female; Genotype; Glycine; Het

1968
Hyperuricosuric encephalopathy without hyperuricaemia.
    Archives of disease in childhood, 1968, Volume: 43, Issue:232

    Topics: Amino Acid Metabolism, Inborn Errors; Body Weight; Brain Diseases; Carbon Isotopes; Child, Preschool

1968
Congenital cataract, mental retardation and amino-aciduria. Amino-acid excretion determined by high-voltage electrophoresis in patients with mental retardation and congenital cataract.
    Acta ophthalmologica, 1968, Volume: 46, Issue:3

    Topics: Amino Acid Metabolism, Inborn Errors; Amino Acids; Biological Transport; Cataract; Electrophoresis;

1968
Observations on the coexistence of methylmalonic acidemia and glycinemia.
    The Journal of pediatrics, 1969, Volume: 74, Issue:5

    Topics: Acidosis; Amino Acid Metabolism, Inborn Errors; Female; Genes, Recessive; Glycine; Hepatomegaly; Hum

1969
Studies in a patient with methylmalonic acidemia.
    The Journal of pediatrics, 1969, Volume: 74, Issue:5

    Topics: Amino Acid Metabolism, Inborn Errors; Diet; Dietary Proteins; Glycine; Humans; Infant; Infant, Newbo

1969
A defect in intestinal amino acid transport in Lowe's syndrome.
    American journal of diseases of children (1960), 1969, Volume: 117, Issue:1

    Topics: Adult; Arginine; Biopsy; Carbon Isotopes; Cataract; Child, Preschool; Glaucoma; Glycine; Humans; Int

1969
A new disorder of purine metabolism with behavioral manifestations.
    The Journal of pediatrics, 1969, Volume: 74, Issue:1

    Topics: Adenine; Allopurinol; Autistic Disorder; Carbon Isotopes; Child Behavior Disorders; Child, Preschool

1969
Metabolic traits in mentally retarded children as compared with normal populations: monoaminodicarboxylic acids and their half amides and total amino acids.
    Journal of mental deficiency research, 1969, Volume: 13, Issue:2

    Topics: Adolescent; Alanine; Amino Acids; Arginine; Asparagine; Aspartic Acid; Child; Child, Preschool; Chro

1969
[Hyperprolinemia and hydroxyprolinemia].
    La Presse medicale, 1969, May-28, Volume: 77, Issue:26

    Topics: Amino Acid Metabolism, Inborn Errors; Child; Collagen; Consanguinity; Female; Genes, Recessive; Glyc

1969
Hyperuricaemia: some biochemical aspects.
    Proceedings of the Royal Society of Medicine, 1969, Volume: 62, Issue:8

    Topics: Adenine; Carbon Isotopes; Glycine; Humans; In Vitro Techniques; Intellectual Disability; Metabolic D

1969
Mental retardation, abnormal hair and mild aminoaciduria, all of unknown aetiology, in siblings.
    Proceedings of the Royal Society of Medicine, 1969, Volume: 62, Issue:4

    Topics: Alanine; Child, Preschool; Female; Fluoroscopy; Glutamine; Glycine; Hair; Humans; Intellectual Disab

1969
A new type of idiopathic hyperglycinemia with hypo-oxaluria.
    Pediatrics, 1965, Volume: 36, Issue:6

    Topics: Amino Acid Metabolism, Inborn Errors; Blood; Cerebrospinal Fluid; Child, Preschool; Chromatography;

1965