Abstract
Alzheimer’s disease is a neurodegenerative disease, which affects intellectually is frequently observed in elderly generations and genetically linked individuals. The diagnosis of this disease is characterized by the presence of biomarkers such as amyloid beta (Aβ1–42), phosphorylated tau (P-tau), and total tau (t-tau) protein causing NFTs’ intercellularly interrupting synapse, which aids in transmitting the neuronal signals, thereby leading to memory loss and cognitive impairment failing to do basic tasks in daily life. Acquiring the diagnosis of this disease through the presence of biomarkers is categorized into two ways, invasive and noninvasive. The invasive way includes the collection of cerebrospinal fluid which is considered painful, but the advantage of this method is that it verifies the presence of the biomarkers accurately by taking into account its close association with the brain. This method is usually done at late stages for confirmation. The less painful or noninvasive ways include collecting samples from blood and ocular, olfactory, and oral fluids. These methods are in the preliminary stages of research that need further investigation to overcome methodological heterogeneity and discrepancy in accuracy and specificity.
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Abbreviations
- 15-LOX:
-
15-Lipoxygenase
- AChE:
-
Acetylcholine esterase
- AD:
-
Alzheimer’s disease
- ADNI:
-
Alzheimer’s disease neuroimaging initiative
- AMPK:
-
5′ Adenosine monophosphate-activated protein kinase
- Apoε4:
-
Apolipoprotein-E
- APP:
-
Amyloid precursor protein
- Aβ:
-
Beta-amyloid
- BBB:
-
Blood-brain barrier
- BCSFB:
-
Blood-cerebrospinal fluid barrier
- CAA:
-
Cerebral amyloid angiopathy
- cdk5:
-
Cyclin-dependent kinase 5
- CDR:
-
Clinical dementia rating
- CHGA:
-
Chromogranin A
- CK 1:
-
Casein kinase 1
- CNS:
-
Central nervous system
- CSF:
-
Cerebrospinal fluid
- CSF-ISF exchange:
-
Cerebrospinal fluid and interstitial fluid exchange
- CT:
-
Computerized tomography
- DNA:
-
Deoxyribonucleic acid
- DS:
-
Down syndrome
- DYRK-1A:
-
Dual-specificity tyrosine-phosphorylation-regulated kinase 1A
- ELISA:
-
Enzyme-linked immunosorbent assay
- FDG:
-
Fluoro-2-deoxy-D-glucose
- FMRI:
-
Functional magnetic resonance imaging
- GSK-3:
-
Glycogen synthase kinase-3
- IL:
-
Interleukin
- IP-10:
-
Interferon-induced protein 10
- LC:
-
Locus coeruleus
- LM:
-
Logical memory
- LRP-1:
-
Low-density lipoprotein receptor-related protein
- Lys C:
-
Lysozyme C
- MALDI-MS:
-
Matrix-assisted laser desorption/ionization-mass spectroscopy
- MARKS:
-
Microtubule affinity-regulating kinases
- MCI:
-
Mild cognitive impairment
- MCP-1:
-
Monocyte chemoattractant protein 1
- miRNA:
-
Microsomal RNA
- MMSE:
-
Mini-mental state examination
- MRI:
-
Magnetic resonance imaging
- MS:
-
Mass spectroscopy
- Multiplex iTRAQ:
-
Multiplexed isobaric tagging technology for relative quantitation
- NCANP:
-
Neurocan core protein
- NFTs:
-
Neurofibrillary tangles
- NGF:
-
Nerve growth factor
- NMDA:
-
N-methyl-D-aspartate
- NPTX1:
-
Neuronal pentraxin 1
- NRXNs:
-
Neurexins
- NTP:
-
Neuronal thread protein
- OCT:
-
Optical coherence tomography
- PET:
-
Positron-emission tomography
- PGP-D:
-
D-glycol protein
- PiB:
-
Pittsburgh compound B
- PKA:
-
Cyclic AMP-dependent protein kinase A
- PP1:
-
Protein phosphate-1
- PP2A:
-
Protein phosphate-2A
- PP5:
-
Protein phosphate-5
- PS 2:
-
Presenilin
- P-tau:
-
Phosphorylated tau
- RNA:
-
Ribonucleic acid
- RNFL:
-
Retinal nerve fiber layer
- RT-PCR:
-
Real-time reverse transcriptase-polymerase chain reaction
- SCG2:
-
Secretogranin 2
- SELDI:
-
Surface-enhanced laser desorption/ionization time-of-flight mass spectroscopy
- SYN-2:
-
Synaptic protein synapsin-2
- t-tau:
-
Total tau
- VILIP-1:
-
Visinin-like protein 1
- WMS:
-
Wechsler memory scale
- β2M:
-
β2-Macroglobulin
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Gaddam, M., Motamarri, E.R., Sharma, A. (2023). Biomarkers for Alzheimer’s Disease. In: Sharma, A., Modi, G.P. (eds) Natural Product-based Synthetic Drug Molecules in Alzheimer's Disease. Springer, Singapore. https://doi.org/10.1007/978-981-99-6038-5_4
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