Energy substrate metabolism in pyruvate dehydrogenase complex deficiency
-
Maria Halldin Stenlid
,
Anders Forslund
Abstract
Pyruvate dehydrogenase (PDH) deficiency is an inherited disorder of carbohydrate metabolism, resulting in lactic acidosis and neurological dysfunction. In order to provide energy for the brain, a ketogenic diet has been tried. Both the disorder and the ketogenic therapy may influence energy production. The aim of the study was to assess hepatic glucose production, lipolysis and resting energy expenditure (REE) in an infant, given a ketogenic diet due to neonatal onset of the disease. Lipolysis and glucose production were determined for two consecutive time periods by constant-rate infusions of [1,1,2,3,3-2H5]-glycerol and [6,6-2H2]-glucose. The boy had been fasting for 2.5 h at the start of the sampling periods. REE was estimated by indirect calorimetry. Rates of glucose production and lipolysis were increased compared with those of term neonates. REE corresponded to 60% of normal values. Respiratory quotient (RQ) was increased, indicating a predominance of glucose oxidation. Blood lactate was within the normal range. Several mechanisms may underlie the increased rates of glucose production and lipolysis. A ketogenic diet will result in a low insulin secretion and reduced peripheral and hepatic insulin sensitivity, leading to increased production of glucose and decreased peripheral glucose uptake. Surprisingly, RQ was high, indicating active glucose oxidation, which may reflect a residual enzyme activity, sufficient during rest. Considering this, a strict ketogenic diet might not be the optimal choice for patients with PDH deficiency. We propose an individualised diet for this group of patients aiming at the highest glucose intake that each patient will tolerate without elevated lactate levels.
Acknowledgments
We are grateful to many people for their assistance in this work: The nurses at the ward for excellent help in the study; Christina Eklund for skilful dietary instructions; Elisabeth Söderberg for expert assistance with the stable isotope analysis; the staff at CMMS, Karolinska University Hospital, Huddinge, Sweden, for skilful laboratory assistance; and Roger Olsson for assistance in the indirect calorimetry and the REE calculations.
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©2014 by De Gruyter
Artikel in diesem Heft
- Frontmatter
- Highlight: Cushing syndrome
- Fundamental principles of clinical and biochemical evaluation underlie the diagnosis and therapy of Cushing’s syndrome
- Cushing syndrome secondary to CRH-producing Wilms tumor in a 6 year old
- Cushing’s disease presenting as cholestatic hepatitis
- How early can one diagnose Cushing’s disease? An early diagnosis in a case of prepubertal Cushing’s disease
- Review article
- Subclinical hypothyroidism in childhood and adolescense
- Original articles
- Energy substrate metabolism in pyruvate dehydrogenase complex deficiency
- Chromosome 6q24 transient neonatal diabetes mellitus and protein sensitive hyperinsulinaemic hypoglycaemia
- Measures of pituitary gland and stalk: from neonate to adolescence
- Are preterm newborns who have relative hyperthyrotropinemia at increased risk of brain damage?
- Pseudohypoparathyroidism vs. tricho-rhino-phalangeal syndrome: patient reclassification
- Association of serum 25-hydroxyvitamin D with race/ethnicity and constitutive skin color in urban schoolchildren
- A nonsense thyrotropin receptor gene mutation (R609X) is associated with congenital hypothyroidism and heart defects
- Acanthosis nigricans, vitamin D, and insulin resistance in obese children and adolescents
- Clinical characteristics and chromosome 11p15 imprinting analysis of Silver-Russell syndrome – a Chinese experience
- Change in reference body mass index percentiles and deviation in overweight and obesity over 3 years in Turkish children and adolescents
- Long-term outcomes of pediatric Graves’ disease
- Accessibility of the reference center as a protective factor against ketoacidosis at the onset of diabetes in children
- Vitamin D, parathormone, and insulin resistance in children born large for gestational age
- Prevalence of vitamin D deficiency in apparently healthy children in north India
- Prevalence of autoantibodies in type 1 diabetes patients and its association with the clinical presentation – UAE Eastern Region experience
- Clinical and molecular studies related to bone metabolism in patients with congenital adrenal hyperplasia
- Islet neogenesis-associated protein-related pentadecapeptide improves the function of allograft after islets transplantation
- Anti-Mullerian hormone may be a useful adjunct in the diagnosis of polycystic ovary syndrome in nonobese adolescents
- Early infant feeding practice and childhood obesity: the relation of breast-feeding and timing of solid food introduction with childhood obesity
- Late onset X-linked adrenal hypoplasia congenita with hypogonadotropic hypgonadism due to a novel 4-bp deletion in exon 2 of NR0B1
- The correlation between GnRH stimulation testing and obstetric ultrasonographic parameters in precocious puberty
- The DATAC study: a new growth database. Description of the epidemiology, diagnosis and therapeutic attitude in a group of Spanish children with short stature
- Concentrations of tumour necrosis factor-α and its soluble receptors in the serum of teenagers with atherosclerosis risk factors: obesity or obesity combined with hypertension
- Are HDL levels lower in children with type 1 diabetes and concurrent celiac disease compared with children with type 1 diabetes only?
- Patient reports
- Hereditary vitamin D rickets: a case series in a family
- Two heterozygous mutations of the AMH gene in a Japanese patient with persistent Müllerian duct syndrome
- Two case reports of severe pediatric hyperosmolar hyperglycemia and diabetic ketoacidosis accompanied with rhabdomyolysis and acute renal failure
- Acquired hypothyroidism due to iodine deficiency in an American child
- Continuous subcutaneous IGF-1 therapy via insulin pump in a patient with Donohue syndrome
- Amylase/creatinine clearance ratio in diabetic ketoacidosis: a case report
- Worsening hypertriglyceridemia with oral contraceptive pills in an adolescent with HIV-associated lipodystrophy: a case report and review of the literature
- Congenital hyperinsulinism in a newborn with a novel homozygous mutation (p.Q392H) in the ABCC8 gene
- Short communications
- Polyglandular autoimmune syndrome type I – a novel AIRE mutation in a North American patient
- Post-hemorrhagic hydrocephalus and diabetes insipidus in preterm infants
- Two novel mutations in acid α-glucosidase gene in two patients with Pompe disease
- Letter to the Editor
- And what about septin 9 (SEPT9) as a binding partner of survivin in heart regeneration?
Artikel in diesem Heft
- Frontmatter
- Highlight: Cushing syndrome
- Fundamental principles of clinical and biochemical evaluation underlie the diagnosis and therapy of Cushing’s syndrome
- Cushing syndrome secondary to CRH-producing Wilms tumor in a 6 year old
- Cushing’s disease presenting as cholestatic hepatitis
- How early can one diagnose Cushing’s disease? An early diagnosis in a case of prepubertal Cushing’s disease
- Review article
- Subclinical hypothyroidism in childhood and adolescense
- Original articles
- Energy substrate metabolism in pyruvate dehydrogenase complex deficiency
- Chromosome 6q24 transient neonatal diabetes mellitus and protein sensitive hyperinsulinaemic hypoglycaemia
- Measures of pituitary gland and stalk: from neonate to adolescence
- Are preterm newborns who have relative hyperthyrotropinemia at increased risk of brain damage?
- Pseudohypoparathyroidism vs. tricho-rhino-phalangeal syndrome: patient reclassification
- Association of serum 25-hydroxyvitamin D with race/ethnicity and constitutive skin color in urban schoolchildren
- A nonsense thyrotropin receptor gene mutation (R609X) is associated with congenital hypothyroidism and heart defects
- Acanthosis nigricans, vitamin D, and insulin resistance in obese children and adolescents
- Clinical characteristics and chromosome 11p15 imprinting analysis of Silver-Russell syndrome – a Chinese experience
- Change in reference body mass index percentiles and deviation in overweight and obesity over 3 years in Turkish children and adolescents
- Long-term outcomes of pediatric Graves’ disease
- Accessibility of the reference center as a protective factor against ketoacidosis at the onset of diabetes in children
- Vitamin D, parathormone, and insulin resistance in children born large for gestational age
- Prevalence of vitamin D deficiency in apparently healthy children in north India
- Prevalence of autoantibodies in type 1 diabetes patients and its association with the clinical presentation – UAE Eastern Region experience
- Clinical and molecular studies related to bone metabolism in patients with congenital adrenal hyperplasia
- Islet neogenesis-associated protein-related pentadecapeptide improves the function of allograft after islets transplantation
- Anti-Mullerian hormone may be a useful adjunct in the diagnosis of polycystic ovary syndrome in nonobese adolescents
- Early infant feeding practice and childhood obesity: the relation of breast-feeding and timing of solid food introduction with childhood obesity
- Late onset X-linked adrenal hypoplasia congenita with hypogonadotropic hypgonadism due to a novel 4-bp deletion in exon 2 of NR0B1
- The correlation between GnRH stimulation testing and obstetric ultrasonographic parameters in precocious puberty
- The DATAC study: a new growth database. Description of the epidemiology, diagnosis and therapeutic attitude in a group of Spanish children with short stature
- Concentrations of tumour necrosis factor-α and its soluble receptors in the serum of teenagers with atherosclerosis risk factors: obesity or obesity combined with hypertension
- Are HDL levels lower in children with type 1 diabetes and concurrent celiac disease compared with children with type 1 diabetes only?
- Patient reports
- Hereditary vitamin D rickets: a case series in a family
- Two heterozygous mutations of the AMH gene in a Japanese patient with persistent Müllerian duct syndrome
- Two case reports of severe pediatric hyperosmolar hyperglycemia and diabetic ketoacidosis accompanied with rhabdomyolysis and acute renal failure
- Acquired hypothyroidism due to iodine deficiency in an American child
- Continuous subcutaneous IGF-1 therapy via insulin pump in a patient with Donohue syndrome
- Amylase/creatinine clearance ratio in diabetic ketoacidosis: a case report
- Worsening hypertriglyceridemia with oral contraceptive pills in an adolescent with HIV-associated lipodystrophy: a case report and review of the literature
- Congenital hyperinsulinism in a newborn with a novel homozygous mutation (p.Q392H) in the ABCC8 gene
- Short communications
- Polyglandular autoimmune syndrome type I – a novel AIRE mutation in a North American patient
- Post-hemorrhagic hydrocephalus and diabetes insipidus in preterm infants
- Two novel mutations in acid α-glucosidase gene in two patients with Pompe disease
- Letter to the Editor
- And what about septin 9 (SEPT9) as a binding partner of survivin in heart regeneration?
