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Brain Areas Involved in Modulating the Immune Response Participating in Hypertension and Its Target Organ Damage.

PMID: 34269604 (view PubMed database entry)
DOI: 10.1089/ars.2021.0142 (read at publisher's website )

Marialuisa Perrotta, Daniela Carnevale,

<b><i>Significance:</i></b> Hypertension is a multifactorial disease ensuing from the continuous challenge imposed by several risk factors on the cardiovascular system. Classically known pathophysiological alterations associated with hypertension comprise neurogenic mechanisms dysregulating the autonomic nervous system (ANS), vascular dysfunction, and excessive activation of the renin angiotensin system. During the past few years, a considerable number of studies indicated that immune activation and inflammation also have an important role in the onset and maintenance of hypertension. <b><i>Critical Issues:</i></b> On these premises, it has been necessary to reconsider the pathophysiological mechanisms underlying hypertension development, taking into account the potential interactions established between classically known determinants of high blood pressure and the immune system. <b><i>Recent Advances:</i></b> Interestingly, central nervous system areas controlling cardiovascular functions are enriched with Angiotensin II receptors. Observations showing that these brain areas are crucial for mediating peripheral ANS and immune responses were suggestive of a critical role of neuroimmune interactions in hypertension. In fact, the ANS, characterized by an intricate network of afferent and efferent fibers, represents an intermediate between the brain and peripheral responses that are essential for blood pressure regulation. <b><i>Future Directions:</i></b> In this review, we will summarize studies showing how specific brain areas can modulate immune responses that are involved in hypertension.

Antioxid Redox Signal (Antioxidants & redox signaling)
[2021, :]

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