Potential Biological and Genetic Links Between Dementia and Osteoporosis: A Scoping Review
- PMID: 40700291
- PMCID: PMC12333915
- DOI: 10.3390/geriatrics10040096
Potential Biological and Genetic Links Between Dementia and Osteoporosis: A Scoping Review
Abstract
Background: The biological mediators for the epidemiologic overlap between osteoporosis and dementia are unclear. We undertook a scoping review of clinical studies to identify genetic and biological factors linked with these degenerative conditions, exploring the mechanisms and pathways connecting both conditions.
Methods: Studies selected (1) involved clinical research investigating genetic factors or biomarkers associated with dementia or osteoporosis, and (2) were published in English in a peer-reviewed journal between July 1993 and March 2025. We searched Medline Ovid, Embase, PsycINFO, the Cochrane Library, the Web of Science databases, Google Scholar, and the reference lists of studies following the guidelines for Preferred Reporting Items for Systematic Reviews and Meta-Analyses for Scoping Reviews (PRISMA-ScR).
Results: Twenty-three studies were included in this review. These explored the role of the APOE polymorphism (n = 2) and the APOE4 allele (n = 13), associations between TREM2 mutation and late onset AD (n = 1), and associations between amyloid beta and bone remodeling (n = 1); bone-related biomarkers like DKK1, OPG, and TRAIL as predictors of cognitive change (n = 2); extracellular vesicles as bone-brain communication pathways (1); and the role of dementia-related genes (n = 1), AD-related CSF biomarkers (n = 1), and parathyroid hormone (PTH) (n = 1) in osteoporosis-dementia pathophysiology.
Conclusions: Bone-related biomarkers active in the Wnt/β-Catenin pathway (Dkk1 and sclerostin) and the RANKL/RANK/OPG pathway (OPG/TRAIL ratio) present consistent evidence of involvement in AD and osteoporosis development. Reports proposing APOE4 as a causal genetic link for both osteoporosis and AD in women are not corroborated by newer observational studies. The role of Aβ toxicity in osteoporosis development is unverified in a large clinical study.
Keywords: biomarkers; dementia; genetic markers; osteoporosis; scoping review.
Conflict of interest statement
The authors declare no conflicts of interest.
Figures
Similar articles
-
CSF tau and the CSF tau/ABeta ratio for the diagnosis of Alzheimer's disease dementia and other dementias in people with mild cognitive impairment (MCI).Cochrane Database Syst Rev. 2017 Mar 22;3(3):CD010803. doi: 10.1002/14651858.CD010803.pub2. Cochrane Database Syst Rev. 2017. PMID: 28328043 Free PMC article.
-
Plasma and cerebrospinal fluid amyloid beta for the diagnosis of Alzheimer's disease dementia and other dementias in people with mild cognitive impairment (MCI).Cochrane Database Syst Rev. 2014 Jun 10;2014(6):CD008782. doi: 10.1002/14651858.CD008782.pub4. Cochrane Database Syst Rev. 2014. PMID: 24913723 Free PMC article.
-
Regional cerebral blood flow single photon emission computed tomography for detection of Frontotemporal dementia in people with suspected dementia.Cochrane Database Syst Rev. 2015 Jun 23;2015(6):CD010896. doi: 10.1002/14651858.CD010896.pub2. Cochrane Database Syst Rev. 2015. PMID: 26102272 Free PMC article.
-
Systemic pharmacological treatments for chronic plaque psoriasis: a network meta-analysis.Cochrane Database Syst Rev. 2020 Jan 9;1(1):CD011535. doi: 10.1002/14651858.CD011535.pub3. Cochrane Database Syst Rev. 2020. Update in: Cochrane Database Syst Rev. 2021 Apr 19;4:CD011535. doi: 10.1002/14651858.CD011535.pub4. PMID: 31917873 Free PMC article. Updated.
-
Systemic pharmacological treatments for chronic plaque psoriasis: a network meta-analysis.Cochrane Database Syst Rev. 2021 Apr 19;4(4):CD011535. doi: 10.1002/14651858.CD011535.pub4. Cochrane Database Syst Rev. 2021. Update in: Cochrane Database Syst Rev. 2022 May 23;5:CD011535. doi: 10.1002/14651858.CD011535.pub5. PMID: 33871055 Free PMC article. Updated.
References
Publication types
LinkOut - more resources
Full Text Sources
Miscellaneous