What question did this study set out to answer?

Determine whether histochemical muscle fiber changes can identify asymptomatic gene carriers in families affected by nemaline myopathy to clarify inheritance patterns and inform genetic counseling.

July 1, 1978Annals of Neurology

Nemaline (rod) myopathy: Thexs need for histochemical evaluation of affected families

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Why the study?

Does histochemical evaluation of muscle biopsies identify gene carriers in families with nemaline myopathy?

Population

A patient with nemaline myopathy and her mother

Design

Case_report

Authors

ABAdam N. BenderNational Institutes of Health JWJudith P. WillnerHarvard University

Discussion

Member takes

Implication

Muscle biopsy histochemistry may identify asymptomatic nemaline myopathy carriers; single case leaves open counseling utility.

Key Points

Determine whether histochemical muscle fiber changes can identify asymptomatic gene carriers in families affected by nemaline myopathy to clarify inheritance patterns and inform genetic counseling.
Performed muscle biopsies and histochemical analyses on a patient with nemaline myopathy and the patient's asymptomatic mother.
Evaluated muscle tissue for fiber size, type I and type II fiber distribution, and the presence or absence of rod-bodies.
Both the patient and the asymptomatic mother demonstrated marked type I muscle fiber predominance with large groupings of type I fibers.
The mother exhibited distinctive histochemical fiber alterations despite the complete absence of rod-bodies and normal muscle strength, confirming carrier status and suggesting subtle neurogenic innervation defects.

Structured PICO

Does histochemical evaluation of muscle biopsies identify gene carriers in families with nemaline myopathy?

Population

A patient with nemaline myopathy and her mother

Intervention

Histochemical evaluation of muscle biopsy

Outcome

Identification of gene carrier status via histochemical changessurrogate

Histochemical evaluation of relatives' muscle biopsies is important for genetic counseling in nemaline myopathy, as carriers may show only histochemical changes without rod-bodies.

Cite This Study

Bender et al. (1978) studied this question.

synapsesocial.com/papers/6a9506d85426d440e59e650a https://doi.org/10.1002/ana.410040107

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Nemaline (rod) myopathy: Thexs need for histochemical evaluation of affected families

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Nemaline (rod) myopathy: Thexs need for histochemical evaluation of affected families

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Also Consider

Also Consider