AI Article Synopsis
- Heart failure's complexity arises from multiple underlying factors, making early diagnosis crucial for effective treatment, particularly in relation to aging and its impact on the heart.
- Researchers conducted a study using advanced techniques to examine how glycans in heart tissue change over time, focusing on differences between regions of the left ventricle in normal mice.
- Results showed distinct glycan profiles linked to aging, including specific changes in the medial region, indicating potential spatiotemporal variations in microvessels, which could be useful for developing markers for early signs of heart failure.
Article Abstract
Unlabelled: Heart failure is caused by various factors, making the underlying pathogenic mechanisms difficult to identify. Since cardiovascular disease tends to worsen over time, early diagnosis is key for treatment. In addition, understanding the qualitative changes in the heart associated with aging, where information on the direct influences of aging on cardiovascular disease is limited, would also be useful for treatment and diagnosis. To fill these research gaps, the focus of our study was to detect the structural and functional molecular changes associated with the heart over time, with a focus on glycans, which reflect the type and state of cells.
Methods: We investigated glycan localization in the cardiac tissue of normal mice and their alterations during aging, using evanescent-field fluorescence-assisted lectin microarray, a technique based on lectin-glycan interaction, and lectin staining.
Results: The glycan profiles in the left ventricle showed differences between the luminal side (medial) and wall side (lateral) regions. The medial region was characterized by the presence of sialic acid residues. Moreover, age-related changes in glycan profiles were observed at a younger age in the medial region. The difference in the age-related decrease in the level of α-galactose stained with lectin-IB4 in different regions of the left ventricle suggests spatiotemporal changes in the number of microvessels.
Conclusions: The glycan profile, which retains diverse glycan structures, is supported by many cell populations, and maintains cardiac function. With further research, glycan localization and changes have the potential to be developed as a marker of the signs of heart failure.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9841240 | PMC |
| http://dx.doi.org/10.1016/j.reth.2022.12.009 | DOI Listing |
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