Inborn errors of metabolism for child neurology residents

Marc C Patterson1

  • 1Division of Child and Adolescent Neurology, Mayo Clinic, Rochester, MN 55905, USA. patterson.marc@mayo.edu

Insights

Child neurologists must recognize inborn errors of metabolism (IEMs) and utilize resources for diagnosis and management. Early identification and lifelong learning are crucial for effectively caring for children with these collectively common, yet individually rare, genetic disorders.

Area of Science:

  • Biochemistry
  • Genetics
  • Pediatric Neurology

Background:

  • Inborn errors of metabolism (IEMs) are rare individually but common collectively, posing a significant health burden.
  • Child neurologists play a critical role in identifying IEMs as a cause of pediatric symptoms.
  • Advances in diagnostics and improved survival necessitate specialized knowledge in IEM management.

Purpose of the Study:

  • To emphasize the importance of child neurologists recognizing and managing inborn errors of metabolism.
  • To outline the essential knowledge and skills required for diagnosing and treating IEMs.
  • To advocate for the integration of IEM education into pediatric neurology residency training.

Main Methods:

  • Review of the current understanding of IEM mechanisms and classification.
  • Identification of essential diagnostic and management resources.
  • Emphasis on multidisciplinary care approaches.
  • Discussion of the evolving landscape of IEMs in pediatric neurology.

Main Results:

  • Child neurologists need a foundational understanding of IEMs, including their mechanisms and classification.
  • Effective management requires utilizing available diagnostic resources and forming multidisciplinary teams.
  • Anticipating and managing IEMs is becoming increasingly important due to improved survival rates.

Conclusions:

  • Child neurologists must be equipped to diagnose and manage inborn errors of metabolism.
  • Residency training should include comprehensive education on IEMs.
  • A commitment to lifelong learning is essential for maintaining competence in this field.

Related Concept Videos

Inborn Errors of Metabolism01:20

Inborn Errors of Metabolism

Phenylketonuria (PKU) is a protein metabolism disorder characterized by high blood levels of the amino acid phenylalanine. This results from a mutation in the gene responsible for phenylalanine hydroxylase, an enzyme that converts phenylalanine into tyrosine. When this enzyme is deficient, phenylalanine builds up in the blood, leading to symptoms such as vomiting, rashes, seizures, growth deficiency, and severe mental retardation. An early diagnosis and a diet restricting phenylalanine intake...
Pharmacokinetics in Pediatric Patients: Drug Metabolism01:24

Pharmacokinetics in Pediatric Patients: Drug Metabolism

In pediatric care, understanding the nuances of hepatic drug metabolism is crucial, as it significantly differs from that of adults. This divergence is primarily due to the developmental stage of drug-metabolizing enzymes, which affects how medications are processed in the body. In neonates, for instance, the activity of Phase I enzymes—critical for the initial breakdown of drugs—is markedly reduced, functioning at just 20–40% of the levels seen in adults. This reduction poses a challenge in...
Protein Import into the Peroxisomes01:27

Protein Import into the Peroxisomes

Cells contain membrane-bound organelles called peroxisomes that oxidize organic molecules by transferring hydrogen atoms to oxygen, producing hydrogen peroxide. Peroxisomes enzymatically convert the released hydrogen peroxide into water and oxygen.
Peroxisomal Protein Import:
Peroxisomes lack the genetic machinery required to code for their own proteins. Hence, most peroxisomal membrane, lumenal and transmembrane proteins are synthesized in the cytoplasm or ER and transported to the peroxisome...
Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption01:23

Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption

Understanding the physiological differences in the pediatric population is crucial for effective pharmacotherapy. Neonates, infants, and children exhibit significant variations in gastric pH, gastric emptying time, intestinal transit time, and biliary function. These variations profoundly affect oral drug absorption, necessitating a nuanced approach to pediatric dosing.Neonates present with a unique physiological profile, having a gastric pH greater than 4 and faster and more irregular gastric...
Pharmacokinetics in Pediatric Patients: Drug Excretion01:26

Pharmacokinetics in Pediatric Patients: Drug Excretion

In pediatric medicine, understanding the renal function and drug elimination nuances is crucial for administering safe and effective treatments. Newborns, in particular, display markedly slower renal functions than adults, profoundly affecting how drugs are cleared from their bodies. This slower drug clearance requires clinicians to extend the dosing intervals for many medications to prevent drug accumulation and toxicity while ensuring therapeutic efficacy.One key area where these adjustments...
Overview of Protein Metabolism01:21

Overview of Protein Metabolism

Proteins are broken down into amino acids during digestion. Unlike fats and carbohydrates, which are stored for later use, proteins are not. Instead, amino acids are either used to produce ATP through oxidation or contribute to the creation of new proteins for the growth and repair of the body. Any surplus amino acids from the diet are converted into glucose or triglycerides rather than excreted.
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...