Related Experiment Video
Updated: Oct 6, 2025

07:14
Optogenetic Phase Transition of TDP-43 in Spinal Motor Neurons of Zebrafish Larvae
Published on: February 25, 2022
6.2K
Missing lnc(RNAs) in Alzheimer's Disease?
Rafaela Policarpo1,2,3, Constantin d'Ydewalle3
1VIB-KU Leuven Center for Brain & Disease Research, 3000 Leuven, Belgium.
Genes
|January 21, 2022
Summary
Long non-coding RNAs (lncRNAs) are implicated in Alzheimer's disease (AD) pathology. Understanding lncRNA genetic variations and functions may offer new diagnostic and therapeutic strategies for AD.
Area of Science:
- Neuroscience
- Genetics
- Molecular Biology
Background:
- Alzheimer's disease (AD) is a growing global health burden, with increasing prevalence in aging populations.
- The etiology of AD involves complex environmental and genetic factors, with many identified risk variants in non-coding genomic regions.
- Long non-coding RNAs (lncRNAs) are emerging as critical regulators in neurodevelopment, homeostasis, and neurological disorders like AD.
Purpose of the Study:
- To review current knowledge on lncRNAs in Alzheimer's disease.
- To explore the roles of genetic variations, expression patterns, and functions of lncRNAs in AD.
- To discuss the potential diagnostic and therapeutic implications of lncRNAs for AD.
Main Methods:
- Literature review and synthesis of existing research on lncRNAs and AD.
- Analysis of genetic association studies (GWAS) identifying AD-related loci.
- Examination of studies on lncRNA expression profiles and functional roles in neurological contexts.
Main Results:
- Over 40 genomic loci associated with AD susceptibility have been identified, many containing lncRNAs.
- lncRNAs are implicated in neurodevelopment, brain aging, and are dysregulated in neurological diseases, including AD.
- lncRNAs may serve as key players in AD neuropathology, bridging genetic and environmental factors.
Conclusions:
- lncRNAs represent a significant area of investigation in Alzheimer's disease research.
- Further unraveling the roles of lncRNAs in AD could lead to novel diagnostic biomarkers and therapeutic targets.
- Targeting lncRNAs may offer a promising new avenue for combating Alzheimer's disease.
Related Concept Videos
lncRNA - Long Non-coding RNAs
9.0K
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
9.0K
Alzheimer's Disease: Overview
719
Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
719
siRNA - Small Interfering RNAs
17.2K
Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
17.2K
Types of RNA
6.8K
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA Performs Diverse...
RNA Performs Diverse...
6.8K
MicroRNAs
3.2K
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
3.2K
Alzheimer's Disease: Treatment
285
Alzheimer's Disease (AD), a neurodegenerative disorder, is pathologically identified by amyloid plaques and neurofibrillary tangles composed of tau protein. AD pharmacotherapy aims to manage cognitive symptoms, delay disease progression, and treat behavioral symptoms. The treatment is primarily symptomatic and palliative, with no definitive disease-modifying therapy available. Cholinesterase inhibitors, including donepezil (Aricept), rivastigmine (Exelon), and galantamine (Razadyne), are...
285

