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Biological Aging and Venous Thromboembolism: A Review of Telomeres and Beyond
1Division of Haematology and Haemostaseology, Department of Medicine I, Medical University of Vienna, 1090 Vienna, Austria.
Insights
Biological aging, unlike chronological aging, is linked to venous thromboembolism (VTE) risk. This review explores biological aging biomarkers, like telomere length, and their potential role in VTE, aiming to clarify their clinical application.
Area of Science:
- Cardiovascular disease
- Aging research
- Biomarker discovery
Background:
- Venous thromboembolism (VTE) is a major cardiovascular disease with increasing risk in older adults.
- Approximately 40% of VTE cases are unprovoked, necessitating research into novel risk factors.
- The link between chronological aging and VTE is established, but the role of biological aging remains unclear.
Purpose of the Study:
- To review biomarkers of biological aging.
- To explore the potential role of these biomarkers in venous thromboembolism (VTE).
- To critically assess methods for assessing and validating biological aging biomarkers for VTE risk.
Main Methods:
- Review of omics methodologies (genomics, epigenomics, transcriptomics, proteomics, metabolomics).
- Identification and quantification of molecular alterations associated with aging.
- Examination of existing literature on biological aging biomarkers and VTE.
Main Results:
- Omics advancements have revealed molecular changes during aging.
- Telomere length is one discussed biomarker of biological aging.
- Current methods for biomarker assessment and validation lack standardization.
Conclusions:
- Biological aging biomarkers, including telomere length, may offer new insights into VTE risk.
- Further research is needed to standardize methods and validate biomarkers for clinical application in VTE.
- Investigating biological aging could improve risk stratification and prevention strategies for VTE.
Abstract:
Although venous thromboembolism (VTE) is the third most common cardiovascular disease, and the risk of VTE increases sharply with advancing age, approximately 40% of VTE cases are currently classified as unprovoked, highlighting the importance of risk factor research. While chronological aging is associated with the risk of VTE, the association with biological aging remains unclear. Biological aging is highly complex, influenced by several dysregulated cellular and biochemical mechanisms. In the last decade, advancements in omics methodologies provided insights into the molecular complexity of biological aging. Techniques such as high-throughput genomics, epigenomics, transcriptomics, proteomics, and metabolomics analyses identified and quantified numerous epigenetic markers, transcripts, proteins, and metabolites. These methods have also revealed the molecular alterations organisms undergo as they age. Despite the progress, there is still a lack of consensus regarding the methods for assessing and validating these biomarkers, and their application lacks standardization. This review gives an overview of biomarkers of biological aging, including telomere length, and their potential role for VTE. Furthermore, we critically examine the advantages and disadvantages of the proposed methods and discuss possible future directions for investigating biological aging in VTE.
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