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The Role of the Gut Microbiome on Chronic Kidney Disease
B Sampaio-Maia1, L Simões-Silva1, M Pestana2
1University of Porto, Porto, Portugal.
Insights
Gut dysbiosis, an imbalance in gut bacteria, is a significant risk factor for cardiovascular disease and chronic kidney disease (CKD) progression. Addressing these microbial changes may offer new therapeutic strategies for CKD patients.
Area of Science:
- Nephrology
- Microbiology
- Cardiology
Background:
- Chronic kidney disease (CKD) affects nearly 500 million people globally, with cardiovascular disease (CVD) being a primary cause of mortality.
- Traditional CVD risk interventions are often ineffective in CKD patients, highlighting the need for novel therapeutic targets.
- Gut dysbiosis, an imbalance in the gut microbiome, is increasingly recognized as a contributing factor in CKD pathogenesis and CVD risk.
Purpose of the Study:
- To review the current understanding of gut dysbiosis in CKD.
- To explore the role of gut dysbiosis in CKD pathophysiology and its association with cardiovascular risk.
- To discuss potential strategies for preventing and treating gut dysbiosis in CKD.
Main Methods:
- Review of current scientific literature on gut microbiome alterations in CKD.
- Analysis of the pathophysiological mechanisms linking gut dysbiosis to CKD and CVD.
- Discussion of emerging therapeutic and preventive strategies targeting gut dysbiosis.
Main Results:
- CKD is associated with specific gut microbiome changes, including reduced levels of beneficial bacteria (e.g., Bifidobacteriaceae, Lactobacillaceae) and increased levels of potentially harmful bacteria (e.g., Enterobacteriaceae).
- Gut dysbiosis is implicated as a non-traditional risk factor contributing to cardiovascular complications and disease progression in CKD patients.
- Current metagenomic techniques may lack the resolution to detect species-level alterations within bacterial genera, necessitating further research.
Conclusions:
- Gut dysbiosis is a critical factor in CKD progression and associated cardiovascular risks.
- Targeting gut dysbiosis presents a promising avenue for novel therapeutic interventions in CKD management.
- Further research is needed to fully elucidate the complex interplay between gut microbiota, CKD, and cardiovascular outcomes.
Abstract:
Chronic kidney disease (CKD) is estimated to affect nearly 500 million people worldwide and cardiovascular (CV) disease is a major cause of death in this population. However, therapeutic interventions targeting traditional CV risks are not effective at lowering the incidence of CV events or at delaying the progression of the disease in CKD patients. In recent years, disturbances of normal gut microbiome were recognized in the pathogenesis of diverse chronic diseases. Gut dysbiosis is being unraveled in CKD and pointed as a nontraditional risk factor for CV risk and CKD progression. The most often reported changes in gut microbiome in CKD are related to the lower levels of Bifidobacteriaceae and Lactobacillaceae and to higher levels of Enterobacteriaceae. Although metagenomics brought us an amplified vision on the microbial world that inhabits the human host, it still lacks the sensitivity to characterize the microbiome up to species level, not revealing alterations that occur within specific genus. Here, we review the current state-of-the-art concerning gut dysbiosis in CKD and its role in pathophysiological mechanisms in CKD, particularly in relation with CV risk. Also, the strategies towards prevention and treatment of gut dysbiosis in CKD progression will be discussed.
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