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1.
Child Youth Serv Rev ; 1182020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-33071410

RESUMO

Although incarcerated youth (i.e., youth sentenced to secure custody) have high health needs, the health of detained youth with limited justice involvement remains poorly understood. Between September 2018 and February 2019, social workers from the Los Angeles County Whole Person Care Juvenile Reentry Aftercare Program (WPC) assessed the health and social needs of youth in pre-trial detention. We partnered with the WPC team to analyze assessments completed by 83 youth participants. Youth were on average 16 years old, most (83%) identified as male, and all were from racial or ethnic minority groups. Participants reported high behavioral health needs, including a high prevalence of prior suicide attempts (16%) and history of substance use (81%). Participants demonstrated a pattern of crisis healthcare utilization. Youth also indicated areas of strength, including personal positive traits, engagement in extracurricular activities, educational achievements, and having multiple sources of social support. The majority of youth (74%) desired vocational training and nearly all (94 %) wanted to return to school after release. Overall, the findings indicate that detained youth with limited involvement in the justice system are a resilient group that have notably higher health risk than same-age peers, signifying a critical opportunity for intervention.

2.
Mil Med ; 183(suppl_1): 403-407, 2018 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-29635563

RESUMO

Effective treatments for combat trauma in military service members exist, but barriers to care abound, including poor access, stigma, and dropout. Although the effects of post-traumatic stress disorder (PTSD) can be severe, recovery is possible when proper treatment is implemented. Trauma and Resiliency Resources, Inc.'s Warrior Camp (WC) program is designed to address the effects of combat trauma in military service members and veterans. This intensive, 7-d treatment incorporates eye movement desensitization and reprocessing therapy, equine-assisted psychotherapy, yoga, and narrative writing in context of community. This single-group pretest-posttest design included paired t-tests and effect size analyses for 85 participants of WC. Outcome measures included the Mississippi Scale for Combat-related PTSD, the Patient Health Questionnaire, the Revised Adult Attachment Scales, and the Moral Injury Events Scale. Clinician-administered measures included the Davidson Trauma Scale and the Dissociative Experiences Scale. All measures showed statistically significant reductions in distress. The effect sizes ranged from small to large. Results suggest that WC participants experienced significant improvement in PTSD, depression, moral injury, dissociation and adult attachment. Clinicians should consider the potential benefits of this short-term, intensive treatment when addressing combat-related PTSD among military service members and veterans.


Assuntos
Transtornos de Estresse Pós-Traumáticos/terapia , Adulto , Idoso , Distúrbios de Guerra/psicologia , Distúrbios de Guerra/terapia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Militares/psicologia , Militares/estatística & dados numéricos , Psicoterapia/métodos , Transtornos de Estresse Pós-Traumáticos/psicologia , Resultado do Tratamento , Veteranos/psicologia , Veteranos/estatística & dados numéricos , Yoga/psicologia
3.
J Inherit Metab Dis ; 31(3): 395-8, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18392751

RESUMO

The characteristic elevation of plasma glycine concentrations observed in propionic acidaemia (PA) and other 'ketotic hyperglycinaemias' has been attributed to secondary inhibition of the hepatic glycine cleavage system (GCS) by accumulating CoA derivatives of branched-chain amino acid metabolites. In nonketotic hyperglycinaemia (NKH), cerebrospinal fluid (CSF) and plasma glycine levels and their ratio are increased due to primary deficiency of central nervous system (CNS) as well as hepatic GCS. Whether the GCS in the CNS is also inhibited in PA is unclear, as there are scant data available on CSF glycine levels in this disorder. We studied the relation of CSF and plasma glycine levels in 6 paired samples from 4 PA patients, including one PA patient with bacterial meningitis who underwent ventriculoperitoneal shunting and multiple CSF analyses (n = 26). In contrast to the CSF glycine levels which were generally elevated in all four PA patients, the CSF/plasma glycine concentration ratios in paired samples were normal (0.016-0.029), with the exception of a single sample (0.132) with extremely high CSF protein concentration (2010 mg/L) during the course of meningitis indicating a disturbed blood-brain barrier. This finding of normal CSF/plasma glycine ratio in PA suggests that the observed elevations of CSF glycine levels are a reflection of the concurrent hyperglycinaemia resulting from secondary inhibition of hepatic GCS, but that brain GCS is not affected, in contrast to the situation in NKH. The neurological sequelae in PA are therefore unlikely to be related to disturbed glycine metabolism.


Assuntos
Erros Inatos do Metabolismo dos Aminoácidos/metabolismo , Glicina/sangue , Glicina/líquido cefalorraquidiano , Propionatos/sangue , Encéfalo/metabolismo , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Masculino
4.
Neurology ; 63(10): 1847-53, 2004 Nov 23.
Artigo em Inglês | MEDLINE | ID: mdl-15557500

RESUMO

BACKGROUND: Glycine encephalopathy, also known as nonketotic hyperglycinemia (NKH), is an autosomal recessive disorder caused by a defect in the glycine cleavage system. NKH is classically associated with neonatal apnea, lethargy, hypotonia, and seizures, followed by severe psychomotor retardation in those who survive. METHODS: To determine the natural history of NKH, the authors mailed a 44-question survey to 170 households in the International NKH Family Network. RESULTS: Data for 65 patients (36 boys, 29 girls) were collected from 58 families. One-third of the subjects died; 8 girls died during the neonatal period, and 14 patients died thereafter (2 girls, 12 boys). Median age of death for boys was 2.6 years vs <1 month for girls (p = 0.02). Mean birth weight and length, occipitofrontal circumference, and gestation duration were normal. Two-thirds of infants were ventilated during the neonatal period; of these, 40% died. Ninety percent had confirmed seizures, 75% during the first month of life. Interestingly, three NKH patients never developed seizures. An abnormal corpus callosum and/or hydrocephalus were associated with especially poor gross motor and speech development. Of 25 patients living > or =3 years, 10 were able to walk and say/sign words; all were boys. In six families with more than one affected child, disease course and mortality were similar within each family. CONCLUSIONS: This study reveals a striking and unexpected gender difference in mortality and developmental progress. Of the two-thirds of nonketotic hyperglycinemia patients surviving the newborn period, up to 20% (mostly boys) may learn to walk and communicate by saying or signing words.


Assuntos
Hiperglicinemia não Cetótica/epidemiologia , Transtornos Psicomotores/etiologia , Adolescente , Idade de Início , Agenesia do Corpo Caloso , Anticonvulsivantes/uso terapêutico , Apneia/etiologia , Apneia/terapia , Criança , Pré-Escolar , Progressão da Doença , Feminino , Glicina/sangue , Glicina/líquido cefalorraquidiano , Inquéritos Epidemiológicos , Humanos , Hidrocefalia/epidemiologia , Hidrocefalia/etiologia , Hiperglicinemia não Cetótica/complicações , Hiperglicinemia não Cetótica/metabolismo , Hiperglicinemia não Cetótica/mortalidade , Lactente , Recém-Nascido , Masculino , Epilepsia Mioclônica Juvenil/tratamento farmacológico , Epilepsia Mioclônica Juvenil/epidemiologia , Epilepsia Mioclônica Juvenil/etiologia , Nistagmo Patológico/epidemiologia , Nistagmo Patológico/etiologia , Gravidez , Complicações na Gravidez/epidemiologia , Transtornos Psicomotores/epidemiologia , Sistema de Registros , Respiração Artificial , Estudos Retrospectivos , Convulsões/tratamento farmacológico , Convulsões/epidemiologia , Convulsões/etiologia , Fatores Sexuais , Inquéritos e Questionários , Análise de Sobrevida
5.
J Inherit Metab Dis ; 27(3): 417-22, 2004.
Artigo em Inglês | MEDLINE | ID: mdl-15272469

RESUMO

This article summarizes data and issues covered in the workshop on Glycine Encephalopathy using headings that cover important topics in our present knowledge of this disease.


Assuntos
Coma Hiperglicêmico Hiperosmolar não Cetótico , Animais , Modelos Animais de Doenças , Humanos , Coma Hiperglicêmico Hiperosmolar não Cetótico/diagnóstico , Coma Hiperglicêmico Hiperosmolar não Cetótico/genética , Coma Hiperglicêmico Hiperosmolar não Cetótico/fisiopatologia , Camundongos
6.
Eur J Neurol ; 11(2): 103-10, 2004 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-14748770

RESUMO

The diagnosis of mitochondrial encephalomyopathies is complex and a system for classification of the diagnosis as definite, probable, and possible has been proposed. The objective of this study was to explore the spectrum of epileptic disorders associated with probable and definite mitochondrial disease in children using this classification system. The patient population with mitochondrial disease and epilepsy was selected from a tertiary care children's hospital. Interictal electroencephalograms and video-EEG recordings were used to characterize seizure types. Ten children fulfilled the criteria for probable or definite mitochondrial disease and had epilepsy. Four had siblings with a similar clinical phenotype. Spasms were the most common seizure type and were the initial seizure type in seven patients and two siblings. Four patients had only partial seizures, with or without generalization, and one patient had seizures that were difficult to classify. Blood lactate concentrations were elevated consistently in patients with partial seizures alone but were occasionally normal in children with spasms. Spasms were the most common presenting seizure type in children with probable and definite mitochondrial disease.


Assuntos
Encefalomiopatias Mitocondriais/complicações , Encefalomiopatias Mitocondriais/metabolismo , Espasmos Infantis/complicações , Espasmos Infantis/metabolismo , Criança , Pré-Escolar , Epilepsia/sangue , Epilepsia/classificação , Epilepsia/complicações , Feminino , Humanos , Lactente , Masculino , Doenças Mitocondriais/classificação , Doenças Mitocondriais/complicações , Doenças Mitocondriais/metabolismo , Encefalomiopatias Mitocondriais/classificação , Estudos Retrospectivos , Espasmos Infantis/classificação
7.
Br J Ophthalmol ; 88(2): 191-2, 2004 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-14736770

RESUMO

BACKGROUND: Neonatal adrenoleucodystrophy (NALD) is a rare disorder resulting from abnormal peroxisomal biogenesis. Affected patients present in infancy with developmental delay, hypotonia, and seizures. Blindness and nystagmus are prominent features. The authors suggest a characteristic leopard spot pigmentary pattern in the peripheral retina to be diagnostic. METHODS: Three patients are reported with this presentation; the characteristic retinal appearance resulted in early diagnosis for one of these. CONCLUSION: Leopard spot retinopathy in an infant with hypotonia, seizures, developmental delay, with or without dysmorphic features and hearing impairment, is a clue to the diagnosis of NALD.


Assuntos
Transtornos Peroxissômicos/complicações , Transtornos da Pigmentação/etiologia , Doenças Retinianas/etiologia , Deficiências do Desenvolvimento/etiologia , Humanos , Lactente , Recém-Nascido , Masculino , Hipotonia Muscular/etiologia , Transtornos Peroxissômicos/diagnóstico , Transtornos da Pigmentação/patologia , Doenças Retinianas/patologia , Convulsões/etiologia
9.
Mol Genet Metab ; 74(3): 314-21, 2001 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-11708860

RESUMO

We describe three novel deletions in the human AGT gene in three patients with primary hyperoxaluria type 1, an autosomal recessive disease resulting from a deficiency of the liver peroxisomal enzyme, alanine glyoxylate aminotransferase (AGT; EC 2.6.1.44). A deletion of 4 nucleotides in the exon 6/intron 6 splice junction (679-IVS6+2delAAgt) is expected to cause missplicing. It would also code for a K227E missense alteration in any mRNA successfully spliced. A 2-bp deletion in exon 11 (1125-1126del CG, cDNA) results in a frameshift. A deletion of at least 5-6 kb, EX1 EX5del, spanned exons 1-5 and contiguous upstream sequence. All three deletions are heterozygous with previously documented missense mutations; the intron 6 deletion with F152I, the exon 11 deletion with G82E, and EX1 EX5del with the common mistargeting mutation, G170R.


Assuntos
Hiperoxalúria Primária/genética , Transaminases/genética , Sequência de Aminoácidos , Sequência de Bases , Criança , Pré-Escolar , Análise Mutacional de DNA , Saúde da Família , Feminino , Humanos , Hiperoxalúria Primária/enzimologia , Lactente , Masculino , Dados de Sequência Molecular , Mutação , Polimorfismo Genético , Deleção de Sequência , Transaminases/efeitos dos fármacos , Transaminases/metabolismo
10.
Mol Genet Metab ; 74(1-2): 139-46, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11592811

RESUMO

Nonketotic hyperglycinemia (NKH) is an autosomal recessive disorder of glycine metabolism caused by a defect in the glycine cleavage enzyme complex (GCS). GCS is a complex of four proteins encoded on four different chromosomes. In classical neonatal NKH, levels of cerebrospinal fluid (CSF) glycine and CSF/plasma glycine ratio are very high but the CSF results, in particular, may be more difficult to interpret in later-onset, milder, or otherwise atypical NKH. Enzymatic confirmation of NKH requires a liver sample. Delineation of which protein of the complex is defective is necessary to screen for mutations in the appropriate gene. Except for Finnish NKH patients, few recurrent mutations have yet been found, although analysis of the P-protein gene (the site of the defect in the majority of patients) is at an early stage. Prenatal diagnosis by GCS assay in chorionic villus biopsies is not completely reliable and will be replaced by molecular analysis in families where the mutations are known.


Assuntos
Glicina/sangue , Hiperglicinemia não Cetótica/diagnóstico , Técnicas de Diagnóstico Molecular/métodos , Animais , Feminino , Doenças Fetais/sangue , Doenças Fetais/diagnóstico , Doenças Fetais/enzimologia , Doenças Fetais/genética , Triagem de Portadores Genéticos , Glicina/metabolismo , Humanos , Hiperglicinemia não Cetótica/sangue , Hiperglicinemia não Cetótica/enzimologia , Hiperglicinemia não Cetótica/genética , Fígado/enzimologia , Erros Inatos do Metabolismo/sangue , Erros Inatos do Metabolismo/diagnóstico , Erros Inatos do Metabolismo/enzimologia , Erros Inatos do Metabolismo/genética , Gravidez , Diagnóstico Pré-Natal/métodos
11.
Mol Genet Metab ; 72(4): 322-5, 2001 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-11286506

RESUMO

Screening a DNA bank from 50 patients with enzymatic confirmation of their diagnosis of nonketotic hyperglycinemia gave allele frequencies of 5% for R515S of P-protein (glycine decarboxylase) and 7% for R320H of T-protein (aminomethyltransferase). In a previous report we found that 3% of the same patient alleles were positive for T-protein IVS7-1G>A. In total, testing for these three mutations identified 15% of alleles and positive results (one or two mutations) were found in 11 of the 50 patients. In addition, a novel point mutation in T-protein, N145I, was found in a single case and a PCR/restriction enzyme assay was developed for its detection.


Assuntos
Aminoácido Oxirredutases/genética , Glicina/sangue , Hidroximetil e Formil Transferases/deficiência , Hidroximetil e Formil Transferases/genética , Hiperglicinemia não Cetótica/genética , Mutação , Aminometiltransferase , Primers do DNA/química , Éxons , Frequência do Gene , Glicina/metabolismo , Glicina Desidrogenase (Descarboxilante) , Heterozigoto , Humanos , Hiperglicinemia não Cetótica/enzimologia , Iminas , Recém-Nascido , Cetose , Fígado/enzimologia , Reação em Cadeia da Polimerase , Diagnóstico Pré-Natal
12.
Brain ; 124(Pt 1): 209-18, 2001 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-11133798

RESUMO

Leber's hereditary optic neuropathy (LHON) is a common cause of bilateral optic nerve disease. The majority of LHON patients harbour one of three point mutations of the mitochondrial DNA (mtDNA) complex I, or NADH:ubiquinone oxidoreductase (ND) genes (G11778A in ND4, G3460A in ND1, T14484C in ND6). As a consequence, screening for these mutations has become part of the routine clinical investigation of young adults who present with bilateral optic neuropathy, and the absence of these mutations is interpreted as indicating there is a low likelihood that an optic neuropathy is LHON. However, there are many individuals who develop the clinical features of LHON but who do not harbour one of these primary LHON mutations. We describe two LHON pedigrees that harbour the same novel point mutation within the mtDNA ND6 gene (A14495G). This mutation was heteroplasmic in both families, and sequencing of the mitochondrial genome confirmed that the mutation arose on two independent occasions. This is the seventh mutation in the ND6 gene that causes optic neuropathy, indicating that this gene is a hot spot for LHON mutations. Protein modelling studies indicate that all of these pathogenic mutations lie within close proximity to one another in a hydrophobic cleft or pocket. This is the first evidence for a relationship between a specific disease phenotype and a specific structural domain within a mitochondrial respiratory chain subunit. These findings suggest that the mtDNA ND6 gene should be sequenced in all patients with LHON who do not harbour one of the three common LHON mutations.


Assuntos
DNA Mitocondrial/genética , Mutação/genética , NADH NADPH Oxirredutases/genética , Atrofias Ópticas Hereditárias/diagnóstico , Atrofias Ópticas Hereditárias/genética , Adolescente , Adulto , Substituição de Aminoácidos , Sequência Conservada , Análise Mutacional de DNA , Complexo I de Transporte de Elétrons , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Mitocôndrias/enzimologia , Mitocôndrias/genética , Linhagem , Polimorfismo Genético , Estrutura Secundária de Proteína/genética , Estrutura Terciária de Proteína/genética
13.
Hum Mutat ; 17(1): 76, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11139253

RESUMO

A novel splice site mutation (IVS7-1G-->A) in the T-protein gene (aminomethyltransferase, or AMT) of the glycine cleavage enzyme complex was found in a patient with nonketotic hyperglycinemia (NKH). A PCR/restriction enzyme method to detect this mutation was used to screen 100 NKH alleles and identified the mutation in three unrelated families.


Assuntos
Aminoácido Oxirredutases/genética , Proteínas de Transporte/genética , Hidroximetil e Formil Transferases/genética , Hiperglicinemia não Cetótica/genética , Complexos Multienzimáticos/genética , Mutação/genética , Sítios de Splice de RNA/genética , Transferases/genética , Aminometiltransferase , Triagem de Portadores Genéticos , Humanos , Hiperglicinemia não Cetótica/enzimologia , Íntrons/genética , Reação em Cadeia da Polimerase
15.
Mol Genet Metab ; 70(2): 116-21, 2000 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-10873393

RESUMO

The investigation of 14 unrelated patients with nonketotic hyperglycinemia led to the identification of mutations in 4 cases. Patients were initially categorized into probable P- or T-protein defects of the glycine cleavage enzyme complex, by the use of the glycine exchange assay without supplemental H-protein, then screened for mutations in the P-protein and T-protein genes, respectively.


Assuntos
Análise Mutacional de DNA , Hiperglicinemia não Cetótica/genética , Metiltransferases/genética , Sequência de Aminoácidos , Primers do DNA/química , Éxons , Feminino , Glicina/metabolismo , Homocisteína S-Metiltransferase , Humanos , Hiperglicinemia não Cetótica/enzimologia , Recém-Nascido , Íntrons , Fígado/enzimologia , Masculino , Metiltransferases/metabolismo , Dados de Sequência Molecular , Linhagem
16.
Prenat Diagn ; 20(5): 367-70, 2000 May.
Artigo em Inglês | MEDLINE | ID: mdl-10820402

RESUMO

We report three false negative prenatal diagnostic results, using direct measurement of glycine cleavage enzyme activity in uncultured chorionic villus tissue from 290 pregnancies at risk for non-ketotic hyperglycinaemia (NKH). Testing was done by two centres: Vancouver, Canada and Lyon, France. One false negative result had activity near the lower limit of the normal range but two samples gave completely normal results well within the control range. All three pregnancies continued and the three children were born affected with NKH. Because of the first result, we now counsel that there is a grey zone of uninterpretable activity where affected and normal enzyme values overlap. Because of the other two results we now counsel that there is an approximately 1% chance of a pregnancy with a normal CVS activity resulting in an affected child. The clinical and biochemical findings in the three families are discussed.


Assuntos
Aminoácido Oxirredutases/análise , Aminoácido Oxirredutases/deficiência , Aminoácido Oxirredutases/metabolismo , Proteínas de Transporte/análise , Proteínas de Transporte/metabolismo , Amostra da Vilosidade Coriônica , Hiperglicinemia não Cetótica/diagnóstico , Hiperglicinemia não Cetótica/enzimologia , Fígado/enzimologia , Complexos Multienzimáticos/análise , Complexos Multienzimáticos/deficiência , Complexos Multienzimáticos/metabolismo , Transferases/análise , Transferases/deficiência , Transferases/metabolismo , Consanguinidade , Reações Falso-Negativas , Evolução Fatal , Feminino , Humanos , Hiperglicinemia não Cetótica/genética , Recém-Nascido , Masculino , Gravidez
17.
Pediatrics ; 105(1): e10, 2000 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-10617747

RESUMO

OBJECTIVE: To determine how many children with specific types of inborn errors of metabolism are born each year in British Columbia, Canada. This population provides a relatively unique setting for collection of accurate and uniform incidence data because the diagnoses are all made through one laboratory in a population with universal access to government-funded medical care. METHODOLOGY: We used the records of the Biochemical Diseases Laboratory, Children's Hospital, Vancouver (the central referral point for all metabolic diagnoses in British Columbia) to identify all patients diagnosed with the metabolic diseases defined below. We obtained incidence figures by including only the children diagnosed with the diseases covered in this article who were confirmed as having been born within the province for the years 1969 to 1996. The diseases covered were diseases of amino acids, organic acids, the urea cycle, galactosemia, primary lactic acidoses, glycogen storage diseases, lysosomal storage diseases, and diseases involving specifically peroxisomal and mitochondrial respiratory chain dysfunction. Because the technology needed for diagnosis of specific disease groups was in place at different times our data for the different disease groups correspond to different time frames. We have also adjusted the time frames used to allow for the likelihood that some diseases may not come to medical attention for some time after birth. For instance the incidence of amino acid diseases was assessed throughout the whole of this time frame but the incidence of peroxisomal diseases was restricted to 1984 to 1996 because this was the time frame during which the technology needed for diagnosis was in place and reliable. Most disease group statistics included at least 400 000 births. RESULTS: The overall minimum incidence of the metabolic diseases surveyed in children born in British Columbia is approximately 40 cases per 100 000 live births. This includes phenylketonuria (PKU) and galactosemia which are detected by a newborn screening program. Metabolic diseases, which were not screened for at birth, ie, those with PKU and galactosemia subtracted from the total, have a minimal incidence of approximately 30 cases per 100 000 live births. This diagnostic dilemma group would present to pediatricians for diagnosis. Not all metabolic diseases have been surveyed and our data are restricted to the following metabolic disease groups. Approximately 24 children per 100 000 births (approximately 60% of the total disease groups surveyed) have a disease involving amino acids (including PKU), organic acids, primary lactic acidosis, galactosemia, or a urea cycle disease. These children all have metabolic diseases involving small molecules. Approximately 2.3 children per 100 000 births ( approximately 5%) have some form of glycogen storage disease. Approximately 8 per 100 000 births (20%) have a lysosomal storage disease; approximately 3 per 100 000 births (7%-8%) have a respiratory chain-based, mitochondrial disease and approximately 3 to 4 per 100 000 (7%-8%) of births have a peroxisomal disease. The diseases involving subcellular organelles represent approximately half of the diagnostic dilemma group. The incidence of each of the specific diseases diagnosed, including apparently rare diseases such as nonketotic hyperglycinemia, is to be found in the text. The metabolic diseases reported in this survey represent over 10% of the total number of single gene disorders in our population. CONCLUSIONS: Our data provide a good estimate of metabolic disease incidence, for the disease groups surveyed, in a predominantly Caucasian population. Incidence data for metabolic diseases are hard to collect because in very few centers are diagnoses centralized for a population with uniform access to modern health care and this has been the case for our population during the course of the study. (ABSTRACT TRUNCATED)


Assuntos
Erros Inatos do Metabolismo/epidemiologia , Colúmbia Britânica/epidemiologia , Inquéritos Epidemiológicos , Humanos , Incidência , Recém-Nascido
18.
Biochem Cell Biol ; 78(6): 725-30, 2000.
Artigo em Inglês | MEDLINE | ID: mdl-11206584

RESUMO

The H-protein is one of the four essential components (H-, L-, P-, and T-proteins) of the mammalian glycine cleavage enzyme complex, the major degradative pathway of glycine. We have isolated the full-length cDNA of the H-protein gene from the rabbit (Oryctolagus caniculus) by reverse transcription of liver poly-A mRNA and determined its nucleotide sequence (GenBank Acc. No. BankIt 31828


Assuntos
Aminoácido Oxirredutases , Proteínas de Transporte/química , Proteínas de Transporte/genética , Sequência de Aminoácidos , Substituição de Aminoácidos , Animais , Sequência de Bases , Bovinos , Galinhas , Clonagem Molecular , Códon , Sequência Conservada , DNA Complementar , Proteína H do Complexo Glicina Descarboxilase , Glicina Desidrogenase (Descarboxilante) , Humanos , Dados de Sequência Molecular , Reação em Cadeia da Polimerase , Coelhos , Alinhamento de Sequência , Análise de Sequência de DNA , Homologia de Sequência do Ácido Nucleico , Especificidade da Espécie
19.
J Child Neurol ; 14(7): 464-7, 1999 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-10573469

RESUMO

The diagnosis of nonketotic hyperglycinemia is considered to depend upon the presence of increased cerebrospinal fluid glycine and an increased cerebrospinal fluid to plasma glycine ratio. We studied two siblings who have the neurologic and peripheral biochemical features of the atypical variant of nonketotic hyperglycinemia but have normal cerebrospinal fluid glycine and cerebrospinal fluid to plasma glycine ratios. The proband had reduced liver glycine cleavage system activity of 17% and 21% of mean normal values, confirmed in two independent laboratories. Her lymphoblast glycine cleavage system activity was normal. Nonketotic hyperglycinemia can be present in the absence of increased cerebrospinal fluid glycine. Measurement of liver glycine cleavage system activity is indicated when nonketotic hyperglycinemia is suggested by clinical features and peripheral glycine levels but cerebrospinal fluid glycine is normal.


Assuntos
Epilepsia Parcial Complexa/etiologia , Epilepsia Parcial Complexa/metabolismo , Glicina/metabolismo , Hiperglicinemia não Cetótica/diagnóstico , Hiperglicinemia não Cetótica/metabolismo , Adolescente , Criança , Feminino , Glicina/sangue , Glicina/líquido cefalorraquidiano , Glicina/urina , Humanos , Hiperglicinemia não Cetótica/complicações , Masculino
20.
J Paediatr Child Health ; 35(4): 399-400, 1999 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-10457302

RESUMO

We report a case of galactose-1-phosphate uridyl transferase (GALT) deficiency in a full-term Chinese neonate, who presented with atypical biochemical features of hyperammonaemia in addition to the classical presenting features of jaundice and lethargy after feeding. Red cell GALT activity was virtually absent in the patient while 50% of normal activity was found in parents and a sibling. Mutation screening excluded both Q188R and N314D as the causative mutation in GALT gene, which suggested a possible genetic segregation among ethnic groups. Data from a Taiwan screening program suggested that the incidence of the disease was approximately 1 in 400 000 in the Chinese population which was a sixth of that in Caucasian populations.


Assuntos
Povo Asiático , Galactosemias/etnologia , Amônia/sangue , China/epidemiologia , Feminino , Galactosemias/diagnóstico , Galactosemias/prevenção & controle , Humanos , Incidência , Recém-Nascido , Japão/epidemiologia , Masculino , Triagem Neonatal , Taiwan/epidemiologia , UTP-Hexose-1-Fosfato Uridililtransferase/deficiência
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