Reactivity of salivary uric acid in response to social evaluative stress in African Americans

•Salivary uric acid shows reactivity in response to acute social stress.•Salivary uric acid predicts blood pressure reactivity to acute social stress.•Uric acid reactivity may be critical to understanding hypertension. High uric acid (UA) is associated with hypertension and cardiovascular disease (C...

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Bibliographic Details
Published in:Biological psychology 2020-05, Vol.153, p.107882-107882, Article 107882
Main Authors: Lucas, Todd, Riis, Jenna L., Buchalski, Zachary, Drolet, Caroline E., Dawadi, Anurag, Granger, Douglas A.
Format: Article
Language:English
Subjects:
Adolescent
Adult
Black or African American - psychology
Blood Pressure
Cardiovascular disease
Female
Health disparities
Humans
Hypertension - metabolism
Male
Middle Aged
Saliva - chemistry
Stress reactivity
Stress, Psychological - metabolism
Trier social stress test
Uric acid
Uric Acid - metabolism
Young Adult
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Summary:•Salivary uric acid shows reactivity in response to acute social stress.•Salivary uric acid predicts blood pressure reactivity to acute social stress.•Uric acid reactivity may be critical to understanding hypertension. High uric acid (UA) is associated with hypertension and cardiovascular disease (CVD), both of which occur disproportionately among African Americans. High UA also predicts greater blood pressure reactivity responses to acute social stress. However, whether UA itself shows reactivity in response to stress is unknown. We evaluated salivary uric acid (sUA) and blood pressure reactivity in response to acute social stress. Healthy African Americans (N = 103; 32 % male; M age = 31.36 years), completed the Trier Social Stress Test. sUA and blood pressure measurements were taken before, during and after the stressor task. sUA showed significant reactivity and recovery, especially among older African Americans. Total sUA activation was also associated with systolic and diastolic blood pressure total activation. Findings illuminate that acute stress may be a way in which UA is implicated in hypertension and CVD, suggesting a critical need to explore UA reactivity as a novel parameter of the acute stress response.
ISSN:0301-0511
1873-6246
DOI:10.1016/j.biopsycho.2020.107882