Sex difference in sympathetic nervous system activity and blood pressure in hypertensive patients

Chin Chou Huang, Chia Min Chung, Hsin Bang Leu, Po Hsun Huang, Tao Cheng Wu, Liang Yu Lin, Shing Jong Lin, Wen Harn Pan, Jaw Wen Chen

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Increased sympathetic nervous system (SNS) activity leads to increased risk of cardiovascular morbidity and mortality. This study investigated whether there were sex differences in SNS activity among Chinese patients with hypertension. Ethnic Chinese non-diabetic hypertensive patients aged 20–50 years were enrolled in Taiwan. A total of 970 hypertensive patients (41.0 ± 7.2 years) completed the study, 664 men and 306 women. They received comprehensive evaluations including office blood pressure (BP) measurement, 24-h ambulatory BP monitoring, and 24-h urine sampling assayed for catecholamine excretion. Compared to women, men were younger, had higher body mass index (BMI), office systolic BP (SBP), office diastolic BP (DBP), 24-h ambulatory BP, and 24-h urine catecholamine excretion. In men, 24-h urine total catecholamine levels were correlated with 24-h SBP (r = 0.103, p =.008) and 24-h DBP (r = 0.083, p =.033). In women, however, there was no correlation between 24-h urine total catecholamine levels and 24-h ambulatory BP. Multivariate linear regression indicated that being male (β = 1.65, 95% confidence interval [CI] 0.01–3.29, p =.048) and 24-h urine total catecholamine (β = 5.03, 95% CI 0.62–9.44, p =.025) were both independently associated with 24-h SBP; being male was independently associated with 24-h DBP (β = 3.55, 95% CI 2.26–4.85, p <.001). In conclusion, Chinese men with hypertension had higher SNS activity than women, and SNS activity was independently associated with 24-h ambulatory BP in men rather than in women. These findings suggest that different hypertensive treatment strategies should be considered according to patient sex.

Original languageEnglish
Pages (from-to)137-146
Number of pages10
JournalJournal of Clinical Hypertension
Volume23
Issue number1
DOIs
Publication statusPublished - Jan 2021
Externally publishedYes

Keywords

  • blood pressure
  • catecholamine
  • hypertension
  • sex
  • sympathetic nervous system activity

ASJC Scopus subject areas

  • Internal Medicine
  • Endocrinology, Diabetes and Metabolism
  • Cardiology and Cardiovascular Medicine

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