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Published on: June 10, 2020
Role of Inflammatory Processes in the Brain-Body Relationship Underlying Hypertension
1Department of Angiocardioneurology and Translational Medicine, IRCCS Neuromed, 86077, Pozzilli, IS, Italy. daniela.carnevale@uniroma1.it.
Insights
Essential hypertension involves complex interactions between the nervous and immune systems, driving inflammation and blood pressure elevation. Understanding these bidirectional pathways is crucial for developing new hypertension treatments.
Area of Science:
- Cardiovascular Research
- Neuroimmunology
- Hypertension Pathogenesis
Background:
- Essential hypertension is a global health challenge with significant morbidity and mortality.
- Elevated blood pressure arises from polygenic, environmental, and lifestyle interactions.
- Despite available therapies, hypertension burden continues to grow, necessitating further research.
Purpose of the Study:
- To review recent findings on the interplay between the nervous and immune systems in hypertension.
- To explore how neuroinflammation contributes to the pathogenesis of essential hypertension.
- To highlight the need for a systems-level approach considering brain-immune interactions for hypertension treatment.
Main Methods:
- Review of recent mechanistic studies and data on nervous system-immune system interactions.
- Analysis of bidirectional communication pathways influencing inflammation and blood pressure.
- Synthesis of findings related to feedback loops in hypertension development.
Main Results:
- Bidirectional nervous and immune system interactions alter brain and peripheral inflammation, contributing to chronic hypertension.
- The nervous system acts as both a driver and a target in hypertension.
- The immune system is both a target and a driver of blood pressure increases, with feedback loops playing a key role.
Conclusions:
- Interactions among the brain, immune system, and inflammation are critical in hypertension pathogenesis.
- A holistic view of these interconnected systems is necessary for understanding hypertension development.
- Considering these complex interactions in concert offers potential for novel therapeutic strategies.
Purpose Of Review:
Essential hypertension is a huge health problem that significantly impacts worldwide population in terms of morbidity and mortality. Idiopathic in its nature, elevated blood pressure results from a complex interaction between polygenic components and environmental and lifestyle factors. The constant growth in the burden of hypertension is at odds with expectations, considering the availability of therapeutic strategies. Hence, there is an endless need to further investigate the complexity of factors contributing to blood pressure elevation.
Recent Findings:
Recent data indicate that bidirectional interactions between the nervous system and the immune system alter inflammation in the brain and periphery, contributing to chronic hypertension. These findings indicate that the nervous system is both a direct driver of hypertension and also a target of feedback that often elevates blood pressure further. Similarly, the immune system is both target and driver of the blood pressure increases. The contributions of the feedback loops among these systems appear to play an important role in hypertension. Together, recent mechanistic studies strongly suggest that the interactions among the brain, immune system, and inflammation affect the participation of each system in the pathogenesis of hypertension, and thus, all of these systems must be considered in concert to gain a full appreciation of the development and potential treatments of hypertension.
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