Medline NLM definition: A group of diseases marked by autosomal recessive inheritance and accumulation of sphingomyelin in cells of the RETICULOENDOTHELIAL SYSTEM. They are divided into 5 subtypes: A-E. Type A (classic infantile form) is caused by a deficiency of SPHINGOMYELIN PHOSPHODIESTERASE and presents at age 6-12 months with progressive hepatosplenomegaly and neurologic deterioration. Type B (non-neuronopathic form) presents in childhood with hepatosplenomegaly and pulmonary infiltrates. Type C (chronic neuronopathic form) is caused by defective intracellular cholesterol transport and is divided into severe infantile, late infantile, juvenile, and neonatal hepatitis forms. Type D (Nova Scotian Variant) is phenotypically similar to type C. Type E is an adult non-neuronopathic form. (From Menkes, Textbook of Child Neurology, 5th ed, pp101-4)
PubMed Medline search on Niemann-Pick disease
Niemann-Pick Disease Group (UK)
Provides information on all aspects of Niemann-Pick diseases (NPD) to those affected, their families and care professionals.
Brain and Spine Foundation
Information on living with a neurological condition and on diagnosis. There are publications and resources. The useful glossary of neurological conditions (under 'Information and support') includes links to some other organisations as well as to Brain and Spine Foundation information.
Healthtalk: nerves and brain
Personal experiences of people living with various neurological conditions.
Collective voice for 80 organisations, including stroke and brain injury. Organisations are listed at https://www.neural.org.uk/our-members/, a good place to start if looking for information on those conditions. Site also includes information about living with a neurological condition, a glossary, and information about onset and diagnosis as well as a small set of real life stories.
NHS Inform: brain, nerves and spinal cord
NHS inform is Scotland's national health information service, with the aim of providing the people in Scotland with accurate and relevant information to help them make informed decisions about their own health and the health of the people they care for.