Skip to main content

Neurodegeneration: General Aspects

  • Chapter
  • First Online:
Imaging Brain Diseases

Abstract

Neurodegenerative disorders are complex, and heterogeneity is the rule, rather than the exception, even within a single disease entity. Neurodegenerative diseases can present clinically with predominantly cognitive symptoms (i.e., Alzheimer disease, fronto-temporal dementia, Lewy body dementia) or predominantly motor symptoms (i.e., Parkinson’s disease, Huntington disease, spinocerebellar ataxia).

Histologic changes include formation of abnormal structures in an extracellular location (amyloid deposits), in intracellular locations (intraneuronal: neurofibrillary tangle (NFT)), intracytoplasmic (Pick body, Lewy body), oligodendroglial (Papp-Lantos body), and other inclusions. Furthermore, loss of neurons, loss of synapses, glial changes, and vascular changes occur.

The molecular classification of neurodegenerative diseases differentiates between disorders with amyloid pathology, tauopathies, α-synucleinopathies, trinucleotide repeat disorders. Other genes involved include FUS, TDP-43, C9orf72, microtubule-associated proteins tau (MAPT), ubiquilin, ubiquilin 2, optineurin, and progranulin. Molecular pathways involve deposition of ß-sheet-rich proteins, protein-processing systems, unfolded protein response, ubiquitin-proteasome system, autophagy-lysosome pathway, modifications of disease-related proteins, maturation of protein deposits, neuronal loss due to different pathogenic pathways, metabolic changes, ion homeostasis, and neuro-inflammatory mechanisms.

The amyloid cascade hypothesis is discussed. Biomarker-based diagnostic algorithms for dementia syndromes are presented. A brief sketch of the differential diagnoses is presented including Pick disease, primary progressive aphasia (PPA), motor neuron disease with dementia, dementia lacking distinctive histopathology (DLDH), progressive subcortical gliosis (PSG), Parkinson’s disease with dementia, chromosome 17-associated dementia (Desinhibition-Dementia-Parkinsonism-Amyotrophy Complex), familial presenile dementia with tangles (FPDT), meso-limbo-cortical dementia Down syndrome (Trisomy 21), diffuse neurofibrillary tangles with calcifications (DNTC), thalamic degeneration, (non)-hereditary bilateral striatal necrosis, neuroacanthocytosis, pallidal degenerations, dentato-rubro-pallido-luysii degeneration, substantia reticularis degeneration, argyrophilic grain disease (AGD), adult polyglucosan body disease (APBD), normal pressure hydrocephalus (NPH), mitochondrial encephalomyopathies (Kearns-Sayre syndrome (KKS), myoclonic epilepsy with ragged-red fibers (MERF), mitochondrial encephalopathy, lactate, acidosis, and stroke-like episodes (MELAS), mitochondrial neurogastrointestinal encephalopathy (MNGIE)), Hallervorden-Spatz Disease, leukodystrophies, Wilson disease or hepato-lenticular degeneration, and dementia pugilistica.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 259.00
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Hardcover Book
USD 329.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Selected References

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

Copyright information

© 2019 Springer-Verlag GmbH Austria, part of Springer Nature

About this chapter

Check for updates. Verify currency and authenticity via CrossMark

Cite this chapter

Weis, S. et al. (2019). Neurodegeneration: General Aspects. In: Imaging Brain Diseases. Springer, Vienna. https://doi.org/10.1007/978-3-7091-1544-2_30

Download citation

  • DOI: https://doi.org/10.1007/978-3-7091-1544-2_30

  • Published:

  • Publisher Name: Springer, Vienna

  • Print ISBN: 978-3-7091-1543-5

  • Online ISBN: 978-3-7091-1544-2

  • eBook Packages: MedicineMedicine (R0)

Publish with us

Policies and ethics