CACrown ArchivesThe cinema collection
Menu
Research dossier · General Reference

Distal hereditary motor neuronopathies

Human disease

Cross-disciplinary reference desk with index cards, atlas, dictionary and catalogue
General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionNov 10, 2025
Entity authorityQ5282840 ↗
Source-derived summary

Distal hereditary motor neuronopathies (distal HMNs, DHMNs, or dHMNs; sometimes also called distal hereditary motor neuropathies) are a genetically and clinically heterogeneous group of motor neuron diseases that result from genetic mutations in various genes and are characterized by degeneration and loss of motor neuron cells in the anterior horn of the spinal cord and subsequent muscle atrophy.

Although they can hardly be distinguished from hereditary motor and sensory neuropathies on the clinical level, dHMNs are considered a separate class of disorders.

Another common system of classification groups many of DHMNs under the heading of spinal muscular atrophies.

Classification

In 1993, A. E. Hardnig proposed to classify hereditary motor neuropathies into seven groups based on age at onset, mode of inheritance, and presence of additional features.

Editorial summary

“Distal hereditary motor neuronopathies” enters the record as human disease. Crown Archives preserves that source wording while asking what Distal, hereditary and motor can confirm, complicate or overturn.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1993—that can be checked directly. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Distal, hereditary and motor.
Editorial analysis

Why this record matters

“Distal hereditary motor neuronopathies” is worth following because a concise public description often conceals a longer documentary argument. Here, Distal, hereditary and motor provides the most credible route into that argument.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Nov 10, 2025. The linked authority identifier is Q5282840. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1993.

Critical limits

A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Distal hereditary motor neuronopathies”, its source revision and the description used here.
  2. Expand the search: follow Distal hereditary motor neuronopathies primary sources, Distal hereditary motor neuronopathies archive and Distal research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Distal hereditary motor neuronopathies”?
  2. What terminology or title could unlock a more precise catalogue search?
  3. Which institution is responsible for the underlying evidence?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “Distal hereditary motor neuronopathies” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.