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Related Concept Videos

Inborn Errors of Metabolism01:20

Inborn Errors of Metabolism

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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...
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Errors In Hypothesis Tests01:14

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When performing a hypothesis test, there are four possible outcomes depending on the actual truth (or falseness) of the null hypothesis and the decision to reject or not.
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Accuracy and Errors in Hypothesis Testing01:13

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Hypothesis testing is a fundamental statistical tool that begins with the assumption that the null hypothesis H0 is true. During this process, two types of errors can occur: Type I and Type II. A Type I error refers to the incorrect rejection of a true null hypothesis, while a Type II error involves the failure to reject a false null hypothesis.
In hypothesis testing, the probability of making a Type I error, denoted as α, is commonly set at 0.05. This significance level indicates a 5%...
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Systematic Error: Methodological and Sampling Errors01:15

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In the case of systematic errors, the sources can be identified, and the errors can be subsequently minimized by addressing these sources. According to the source, systematic errors can be divided into sampling, instrumental, methodological, and personal errors.
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What is Metabolism?00:52

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Fundamental Attribution Error01:14

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According to some social psychologists, people tend to overemphasize internal factors as explanations—or attributions—for the behavior of other people. They tend to assume that the behavior of another person is a trait of that person, and to underestimate the power of the situation on the behavior of others. They tend to fail to recognize when the behavior of another is due to situational variables, and thus to the person’s state. This erroneous assumption is...
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Updated: Feb 14, 2026

Errors as a Means of Reducing Impulsive Food Choice
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Testing for Inborn Errors of Metabolism.

Jennifer M Kwon

    Continuum (Minneapolis, Minn.)
    |February 13, 2018
    PubMed
    Summary
    This summary is machine-generated.

    Neurologists can identify some genetic metabolic disorders using standard tests, but newer methods like advanced metabolomic screening and next-generation sequencing are crucial for diagnosing treatable conditions missed by newborn screening.

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    Area of Science:

    • Neurology
    • Metabolic Disorders
    • Genetic Testing

    Background:

    • Inborn errors of metabolism (IEMs) can present with nonspecific neurological symptoms.
    • Newborn screening identifies many IEMs, but milder or later-onset cases may be missed.
    • Neurologists may not always consider metabolic genetic testing for adult patients.

    Observation:

    • Standard metabolic tests (ammonia, amino acids, organic acids) are available but have limitations.
    • Next-generation sequencing and advanced metabolomic screening offer broader diagnostic capabilities.
    • Cost can be a barrier to accessing newer, more comprehensive testing.

    Findings:

    • Treatable IEMs, especially those presenting with neurological issues like epilepsy or ataxia, can be diagnosed with advanced techniques.
    • Even common metabolic testing can reveal treatable diagnoses.
    • Resources exist to assist neurologists in diagnosing genetic metabolic conditions.

    Implications:

    • Considering IEMs in patients of all ages is vital for neurologists.
    • Advanced diagnostic tools are expanding the ability to identify and treat IEMs.
    • Improved awareness and accessibility of testing can lead to earlier diagnosis and intervention for IEMs.