Estrogen effect on heart rate variability in hypertensive postmenopausal women

Brito-Zurita, Olga Rosa; Posadas‐Romero, Carlos; Hermosillo, Antonio G.; Zamora-González, José; Hernandez‐Ono, Antonio; Cardoso-Saldaña, Guillermo; Torres-Tamayo, Margarita

doi:10.1016/s0378-5122(02)00294-3

Cited by 33 publications

(26 citation statements)

References 35 publications

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“…Estrogens also have a beneficial effect on HRV (Mercuro et al, 2000;Brito-Zurita et al, 2003), and there is evidence that lavender interacts with steroids (Henley et al, 2007). Furthermore, estrogens interact with the cholinergic system which mediates vagal nerve activity (McEwen and Alves, 1999).…”

Section: Discussionmentioning

confidence: 99%

Effects of orally administered lavender essential oil on responses to anxiety‐provoking film clips

Bradley

Brown

Chu

et al. 2009

Human Psychopharmacology

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Section: Discussionmentioning

confidence: 99%

Effects of orally administered lavender essential oil on responses to anxiety‐provoking film clips

Bradley

Brown

Chu

et al. 2009

Human Psychopharmacology

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“…In women, modulation of HRV has been linked to Xuctuations in sex hormones (Sato et al 1995;Mercuro et al 2000;Yildirir et al 2001;Yildirir et al 2002;Leicht et al 2003;Rosa Brito-Zurita et al 2003;Princi et al 2005). However, the magnitude and direction of these eVects are as yet, controversial.…”

Section: Discussionmentioning

confidence: 99%

Modulation of heart rate variability by estrogen in young women undergoing induction of ovulation

et al. 2008

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Estrogens are involved in the modulation of the cardiovascular system, yet their effects in young women remains largely unknown. Women who undergo ovulation induction treatments attain extremely high estrogen concentrations during a very short time period. The aim of the present study was to evaluate the effects of an acute increase in estrogens on the autonomic nervous system modulation of heart rate variability (HRV). A total of 27 women undergoing ovulation induction and 14 normally menstruating women were prospectively studied. HRV was assessed during nadir and peak estrogen using time domain and power spectral density analyses. A significant increase in high-frequency spectral power (243 +/- 77 vs. 188 +/- 73 ms(2)/Hz, P < 0.01) with a significant decrease in the ratio of low to high-frequency power was observed during estrogen peak in women undergoing induction of ovulation. The acute increase in estrogen in women undergoing ovulation induction was associated with vagal activation and altered sympathovagal balance.

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“…The effects of hormone therapy on HRV indices have been reported in heterogeneous and controversial forms, with some studies presenting favorable results (14,17,(21)(22)(23),…”

Section: Discussionmentioning

confidence: 99%

Autonomic modulation of heart rate of young and postmenopausal women undergoing estrogen therapy

Neves¹,

Sá²,

Junior³

et al. 2007

Braz J Med Biol Res

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The aim of the present study was to determine whether estrogen therapy (ET) reduces alterations of the autonomic control of heart rate (HR) due to hypoestrogenism and aging. Thirteen young (24 ± 2.6 years), 10 postmenopausal (53 ± 4.6 years) undergoing ET (PM-ET), and 14 postmenopausal (56 ± 2.6 years) women not undergoing ET (PM) were studied. ET consisted of 0.625 mg/day conjugated equine estrogen. HR was recorded continuously for 8 min at rest in the supine and sitting positions. HR variability (HRV) was analyzed by time (SDNN and rMSSD indices) and frequency domain methods. Power spectral components are reported as normalized units (nu) at low (LF) and high (HF) frequencies, and as LF/HF ratio. Intergroup comparisons: SDNN index was higher in young (median: supine, 47 ms; sitting, 42 ms) than in PM-ET (33; 29 ms) and PM (31; 29 ms) women (P < 0.05). PM showed lower HFnu, higher LFnu and higher LF/HF ratio (supine: 44, 56, 1.29; sitting: 38, 62, 1.60) than the young group in the supine position (61, 39, 0.63) and the PM-ET group in the sitting position (57, 43, 0.75; P < 0.05). Intragroup comparisons: HR was lower in the supine than in the sitting position for all groups (P < 0.05). The HRV decrease from the supine to the sitting position was significant only in the young group. These results suggest that HRV decreases during aging. ET seems to attenuate this process, promoting a reduction in sympathetic activity on the heart and contributing to the cardioprotective effect of estrogen hormones.

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Estrogen effect on heart rate variability in hypertensive postmenopausal women

Cited by 33 publications

References 35 publications

Effects of orally administered lavender essential oil on responses to anxiety‐provoking film clips

Effects of orally administered lavender essential oil on responses to anxiety‐provoking film clips

Modulation of heart rate variability by estrogen in young women undergoing induction of ovulation

Autonomic modulation of heart rate of young and postmenopausal women undergoing estrogen therapy

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