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Lethal neonatal autosomal recessive axonal sensorimotor polyneuropathy
V V Vedanarayanan1, S Smith, S H Subramony
1Department of Pediatrics, University of Mississippi Medical Center, Jackson 39216, USA.
Muscle & Nerve
|October 15, 1998
Summary
A rare, lethal, autosomal recessive axonal polyneuropathy presents in newborns with generalized weakness. This hereditary neonatal polyneuropathy causes early respiratory failure and is uniquely identified in a large kindred.
Area of Science:
- Genetics
- Neurology
- Pediatrics
Background:
- Peripheral neuropathy is an infrequent cause of infantile hypotonia and weakness.
- It is rarely associated with severe complications like respiratory failure or swallowing difficulties.
Observation:
- A lethal autosomal recessive axonal polyneuropathy with neonatal onset was identified in a large kindred.
- The condition presented prenatally, with affected infants dying within the first year from respiratory complications.
- Thirteen infants across four generations exhibited this phenotype, with a high frequency of consanguinity.
Findings:
- The study details a unique form of hereditary neonatal polyneuropathy.
- Affected infants presented with generalized hypotonia, weakness, and respiratory failure.
- The inheritance pattern suggests an autosomal recessive mode.
Implications:
- This unique polyneuropathy expands the spectrum of infantile neurodegenerative disorders.
- Early identification and genetic counseling are crucial for affected families.
- Further research into the genetic basis and molecular mechanisms is warranted.