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Philbois SV, Facioli TP, De Lucca I, Veiga AC, Chinellato N, Simões MV, Tank J, Souza HCD. What do we know about the role of menopause in cardiovascular autonomic regulation in hypertensive women? Menopause 2024; 31:408-414. [PMID: 38564706 DOI: 10.1097/gme.0000000000002348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
OBJECTIVE We investigated the systemic arterial hypertension effects on cardiovascular autonomic modulation and baroreflex sensitivity (BRS) in women with or without preserved ovarian function. METHODS A total of 120 women were allocated into two groups: middle-aged premenopausal women (42 ± 3 y old; n = 60) and postmenopausal women (57 ± 4 y old; n = 60). Each group was also divided into two smaller groups (n = 30): normotensive and hypertensive. We evaluated hemodynamic and anthropometric parameters, cardiorespiratory fitness, BRS, heart rate variability (HRV), and blood pressure variability. The effects of hypertension and menopause were assessed using a two-way analysis of variance. Post hoc comparisons were performed using the Student-Newman-Keuls test. RESULTS Comparing premenopausal groups, women with systemic arterial hypertension showed lower BRS (9.1 ± 4.4 vs 13.4 ± 4.2 ms/mm Hg, P < 0.001 ) and HRV total variance (1,451 ± 955 vs 2,483 ± 1,959 ms 2 , P = 0.005) values than normotensive; however, the vagal predominance still remained. On the other hand, both postmenopausal groups showed an expressive reduction in BRS (8.3 ± 4.2 vs 11.3 ± 4.8 ms/mm Hg, P < 0.001) and HRV characterized by sympathetic modulation predominance (low-frequency oscillations; 56% ± 17 vs 44% ± 17, P < 0.001), in addition to a significant increase in blood pressure variability variance (28.4 ± 14.9 vs 22.4 ± 12.5 mm Hg 2 , P = 0.015) compared with premenopausal groups. Comparing both postmenopausal groups, the hypertensive group had significantly lower values of HRV total variance (635 ± 449 vs 2,053 ± 1,720 ms 2 , P < 0.001) and BRS (5.3 ± 2.8 vs 11.3 ± 3.2 ms/mm Hg) than the normotensive. CONCLUSIONS Hypertensive middle-aged premenopausal women present HRV autonomic modulation impairment, but they still maintain a vagal predominance. After menopause, even normotensive women show sympathetic autonomic predominance, which may also be associated with aging. Furthermore, postmenopausal women with hypertension present even worse cardiac autonomic modulation.
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Affiliation(s)
- Stella V Philbois
- From the Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Sao Paulo, Brazil
| | - Tabata P Facioli
- From the Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Sao Paulo, Brazil
| | - Izabella De Lucca
- From the Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Sao Paulo, Brazil
| | - Ana C Veiga
- From the Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Sao Paulo, Brazil
| | - Naiara Chinellato
- From the Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Sao Paulo, Brazil
| | - Marcus V Simões
- Division of Cardiology, Ribeirão Preto Medical School, University of São Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - Jens Tank
- Institute of Aerospace Medicine, German Aerospace Center, Cologne, Germany
| | - Hugo C D Souza
- From the Department of Health Sciences, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Sao Paulo, Brazil
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Kittnar O. Sex Related Differences in Electrocardiography. Physiol Res 2023; 72:S127-S135. [PMID: 37565417 PMCID: PMC10660582 DOI: 10.33549/physiolres.934952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 11/08/2022] [Indexed: 12/01/2023] Open
Abstract
Since its implementation into the clinical medicine by Willem Einthoven electrocardiography had become one of crucial diagnostic method in cardiology. In spite of this fact effects of gender differences on parameters of electrocardiographic recordings started to be studied only recently. Sex related differences in physiological ECG are only minimal in childhood but there are developing during adolescence reflecting rapidly evolving differences particularly in hormonal secretion and activity of an autonomic nervous system. The heart rate is approximately 7 % higher in women than in men, PQ and QRS intervals are longer in men while QT interval is longer in women. The ST segment in females is flatter but generally the sex-related differences in ST-T waveform patterns are relatively very small with higher level of ST segment and taller T wave in men. The effects of sex-related differences, including sex hormones, on cardiac cell injury and death and their influence in determining rhythmogenesis and action potential configuration and conduction play an important role in clinics. Women have a higher prevalence of sick sinus syndrome, inappropriate sinus tachycardia, atrioventricular nodal reentry tachycardia, idiopathic right ventricular tachycardia, and arrhythmic events in the long QT syndrome. In contrast, men have a higher prevalence of atrioventricular block, carotid sinus syndrome, atrial fibrillation, supraventricular tachycardia due to accessory pathways, Wolff-Parkinson-White syndrome, reentrant ventricular tachycardia, ventricular fibrillation and sudden death, and the Brugada syndrome.
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Affiliation(s)
- O Kittnar
- Institute of Physiology, 1st Medical Faculty, Charles University, Prague, Czech Republic.
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3
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Maiorana N, Brugnera A, Galiano V, Ferrara R, Poletti B, Marconi AM, Garzia E, Ticozzi N, Silani V, Priori A, Ferrucci R. Emotional and autonomic response to visual erotic stimulation in patients with functional hypothalamic amenorrhea. Front Endocrinol (Lausanne) 2022; 13:982845. [PMID: 36531461 PMCID: PMC9755206 DOI: 10.3389/fendo.2022.982845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 11/11/2022] [Indexed: 12/04/2022] Open
Abstract
Introduction Functional hypothalamic amenorrhea (FHA) is a clinical condition associated with high levels of physiological and psychological stress ranging from weight loss to maladaptive behavior and coping skills. A reliable measure of the psychophysiological response to stress and the ability to cope with stimuli is heart rate variability (HRV). Through the sympathetic (SNS) and parasympathetic nervous system (PNS), the autonomic nervous system (ANS) promotes various changes in HRV that reflect the individual's psychophysiological response to stress. FHA patients are characterized by high levels of PNS activation during psychological load, suggesting that parasympathetic hyperactivation could be a pathology marker. Methods In the present study, we examine changes in HRV during observation of erotic, neutral, and disgusting images in 10 patients with FHA [(mean ± S.D.) age: 26.8 ± 5.9] and in 9 controls (age: 25.4 ± 6.4; BMI: 22.47 ± 2.97) to assess the differential activation of PNS and SNS between FHA patients and controls matched for age and without other clinical conditions. Results Our results showed that FHA patients had significantly higher HRV activation while observing high emotional value images and not during the observation of neutral images confirming a parasympathetic hyperactivation. Discussion HRV and cognitive and psychological testing, could provide new insights into understanding such a clinically understudied condition and provide further tools for clinical diagnosis and treatment.
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Affiliation(s)
- Natale Maiorana
- Aldo Ravelli Research Center, Department of Health Science, University of Milan, Milan, Italy
| | - Agostino Brugnera
- Department of Human and Social Sciences, University of Bergamo, Bergamo, Italy
| | | | - Rosanna Ferrara
- Aldo Ravelli Research Center, Department of Health Science, University of Milan, Milan, Italy
| | - Barbara Poletti
- Department of Neurology and Laboratory of Neuroscience, Istituto Auxologico Italiano IRCCS, Milan, Italy
| | - Anna Maria Marconi
- ASST-Santi Paolo e Carlo, Milan, Italy
- Department of Health Science, University of Milan, Milan, Italy
| | | | - Nicola Ticozzi
- Department of Neurology and Laboratory of Neuroscience, Istituto Auxologico Italiano IRCCS, Milan, Italy
- Department of Pathophysiology and Transplantation, Dino Ferrari Center, University of Milan, Milan, Italy
| | - Vincenzo Silani
- Department of Neurology and Laboratory of Neuroscience, Istituto Auxologico Italiano IRCCS, Milan, Italy
- Department of Pathophysiology and Transplantation, Dino Ferrari Center, University of Milan, Milan, Italy
| | - Alberto Priori
- Aldo Ravelli Research Center, Department of Health Science, University of Milan, Milan, Italy
- ASST-Santi Paolo e Carlo, Milan, Italy
| | - Roberta Ferrucci
- Aldo Ravelli Research Center, Department of Health Science, University of Milan, Milan, Italy
- ASST-Santi Paolo e Carlo, Milan, Italy
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4
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Dearing C, Handa RJ, Myers B. Sex differences in autonomic responses to stress: implications for cardiometabolic physiology. Am J Physiol Endocrinol Metab 2022; 323:E281-E289. [PMID: 35793480 PMCID: PMC9448273 DOI: 10.1152/ajpendo.00058.2022] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/21/2022] [Accepted: 07/01/2022] [Indexed: 11/22/2022]
Abstract
Chronic stress is a significant risk factor for negative health outcomes. Furthermore, imbalance of autonomic nervous system control leads to dysregulation of physiological responses to stress and contributes to the pathogenesis of cardiometabolic and psychiatric disorders. However, research on autonomic stress responses has historically focused on males, despite evidence that females are disproportionality affected by stress-related disorders. Accordingly, this mini-review focuses on the influence of biological sex on autonomic responses to stress in humans and rodent models. The reviewed literature points to sex differences in the consequences of chronic stress, including cardiovascular and metabolic disease. We also explore basic rodent studies of sex-specific autonomic responses to stress with a focus on sex hormones and hypothalamic-pituitary-adrenal axis regulation of cardiovascular and metabolic physiology. Ultimately, emerging evidence of sex differences in autonomic-endocrine integration highlights the importance of sex-specific studies to understand and treat cardiometabolic dysfunction.
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Affiliation(s)
- Carley Dearing
- Department of Biomedical Sciences, Colorado State University, Fort Collins, Colorado
| | - Robert J Handa
- Department of Biomedical Sciences, Colorado State University, Fort Collins, Colorado
| | - Brent Myers
- Department of Biomedical Sciences, Colorado State University, Fort Collins, Colorado
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Rossi BRO, Philbois SV, Maida KD, Sánchez-Delgado JC, Veiga AC, Souza HCD. Role of aerobic physical training on cardiac autonomic and morphophysiological dysfunction in hypertensive rats subjected to ovarian hormone deprivation. Braz J Med Biol Res 2022; 55:e11916. [PMID: 35584451 PMCID: PMC9113528 DOI: 10.1590/1414-431x2022e11916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 03/10/2022] [Indexed: 11/22/2022] Open
Abstract
Here we investigated the effects of physical training on cardiovascular autonomic control and cardiac morphofunctional parameters in spontaneously hypertensive rats (SHRs) subjected to ovarian hormone deprivation. Forty-eight 10-week-old SHRs were divided into two groups: ovariectomized (OVX, n=24) and sham (SHAM, n=24). Half of each group (n=12) was trained by swimming for 12 weeks (OVX-T and SHAM-T). Cardiac morphology and functionality were assessed using echocardiography, and autonomic parameters were assessed using double pharmacological autonomic block, baroreflex sensitivity (BRS), and analyses of heart rate variability (HRV) and blood pressure variability (BPV). Ovariectomy did not influence the cardiac autonomic tonus balance unlike physical training, which favored greater participation of the vagal autonomic tonus. Ovariectomy and aerobic physical training did not modify HRV and BRS, unlike BPV, for which both methods reduced low-frequency oscillations, suggesting a reduction in sympathetic vascular modulation. Untrained ovariectomized animals showed a reduced relative wall thickness (RWT) and increased diastolic and systolic volumes and left ventricular diameters, resulting in increased stroke volume. Trained ovariectomized animals presented reduced posterior wall thickness and RWT as well as increased final diastolic diameter, left ventricular mass, and stroke volume. Ovarian hormone deprivation in SHRs promoted morphofunctional adaptations but did not alter the evaluation of cardiac autonomic parameters. In turn, aerobic physical training contributed to a more favorable cardiac autonomic balance to the vagal autonomic component and promoted morphological adaptations but had little effect on cardiac functionality.
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Affiliation(s)
- B R O Rossi
- Laboratório de Fisiologia do Exercício e Fisioterapia Cardiovascular, Departamento de Ciência da Saúde, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - S V Philbois
- Laboratório de Fisiologia do Exercício e Fisioterapia Cardiovascular, Departamento de Ciência da Saúde, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - K D Maida
- Laboratório de Fisiologia do Exercício e Fisioterapia Cardiovascular, Departamento de Ciência da Saúde, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - J C Sánchez-Delgado
- Faculty of Physical Culture, Sports and Recreation, University Santo Tomás, Bucaramanga, Colombia
| | - A C Veiga
- Laboratório de Fisiologia do Exercício e Fisioterapia Cardiovascular, Departamento de Ciência da Saúde, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
| | - H C D Souza
- Laboratório de Fisiologia do Exercício e Fisioterapia Cardiovascular, Departamento de Ciência da Saúde, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil
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6
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Ramesh S, James MT, Holroyd‐Leduc JM, Wilton SB, Sola DY, Ahmed SB. Heart rate variability as a function of menopausal status, menstrual cycle phase, and estradiol level. Physiol Rep 2022; 10:e15298. [PMID: 35608101 PMCID: PMC9127980 DOI: 10.14814/phy2.15298] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 04/17/2022] [Accepted: 04/22/2022] [Indexed: 05/15/2023] Open
Abstract
Low estradiol status is associated with increased cardiovascular risk. We sought to determine the association between heart rate variability (HRV), a marker of cardiovascular risk, at baseline and in response to stressor as a function of menopausal status, menstrual cycle phase and estradiol level. Forty-one healthy women (13 postmenopausal, 28 premenopausal) were studied. Eleven premenopausal women were additionally studied in the high and low estradiol phases of the menstrual cycle. HRV was calculated by spectral power analysis (low Frequency (LF), high frequency (HF) and LF:HF) at baseline and in response to graded Angiotensin II (AngII) infusion. The primary outcomes were differences in HRV at baseline and in response to AngII. Compared to premenopausal women in the low estradiol phase, postmenopausal women demonstrated lower baseline LF (p = 0.01) and HF (p < 0.001) measures, which were not significant after adjustment for age and BMI. In response to AngII, a decrease in cardioprotective HRV (ΔHF = -0.43 ± 0.46 ln ms2 , p = 0.005 vs. baseline) was observed in postmenopausal women versus premenopausal women. Baseline HRV parameters did not differ by menstrual phase in premenopausal women. During the low estradiol phase, no differences were observed in the HRV response to AngII challenge. In contrast, women in the high estradiol phase were unable to maintain HRV (ΔLF = -0.07 ± 0.46 ln ms2 , p = 0.048 response vs. baseline, ΔHF = -0.33 ± 0.74 ln ms2, p = 0.048 response vs. baseline). No association was observed between any measure of HRV and estradiol level. Menopausal status and the high estradiol phase in premenopausal women were associated with reduced HRV, a marker of cardiovascular risk. Understanding the role of estradiol in the modulation of cardiac autonomic tone may help guide risk reduction strategies in women.
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Affiliation(s)
- Sharanya Ramesh
- Temerty Faculty of MedicineUniversity of TorontoTorontoOntarioCanada
| | - Matthew T. James
- Temerty Faculty of MedicineUniversity of TorontoTorontoOntarioCanada
- Cumming School of MedicineUniversity of CalgaryCalgaryAlbertaCanada
- Libin Cardiovascular InstituteCalgaryAlbertaCanada
| | | | - Stephen B. Wilton
- Temerty Faculty of MedicineUniversity of TorontoTorontoOntarioCanada
- Cumming School of MedicineUniversity of CalgaryCalgaryAlbertaCanada
| | - Darlene Y Sola
- Temerty Faculty of MedicineUniversity of TorontoTorontoOntarioCanada
| | - Sofia B. Ahmed
- Temerty Faculty of MedicineUniversity of TorontoTorontoOntarioCanada
- Cumming School of MedicineUniversity of CalgaryCalgaryAlbertaCanada
- Libin Cardiovascular InstituteCalgaryAlbertaCanada
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7
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Mariano IM, Amaral AL, V. Carrijo VH, Costa JG, Rodrigues MDL, Cunha TM, Puga GM. Different cardiovascular responses to exercise training in hypertensive women receiving β-blockers or angiotensin receptor blockers: A pilot study. Clin Exp Hypertens 2022; 44:442-450. [DOI: 10.1080/10641963.2022.2065290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Igor M. Mariano
- Physical Education Department, Federal University of Uberlândia, Uberlândia, Brazil
| | - Ana Luiza Amaral
- Physical Education Department, Federal University of Uberlândia, Uberlândia, Brazil
| | | | - Juliene G. Costa
- Physical Education Department, Federal University of Uberlândia, Uberlândia, Brazil
| | | | - Thulio M. Cunha
- Medicine Department, Federal University of Uberlândia, Uberlândia, Brazil
| | - Guilherme M. Puga
- Physical Education Department, Federal University of Uberlândia, Uberlândia, Brazil
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Ferreira MJ, Sanches IC, Jorge L, Llesuy SF, Irigoyen MC, De Angelis K. Ovarian status modulates cardiovascular autonomic control and oxidative stress in target organs. Biol Sex Differ 2020; 11:15. [PMID: 32264929 PMCID: PMC7140311 DOI: 10.1186/s13293-020-00290-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 03/18/2020] [Indexed: 01/08/2023] Open
Abstract
Studies have presented conflicting findings regarding the association between both fluctuation and deprivation of ovarian hormones and cardiovascular autonomic modulation and oxidative stress and their potential impact on resting arterial pressure (AP) and cardiovascular risk. This study aimed to assess cardiovascular autonomic modulation, baroreflex sensitivity (BRS), and oxidative stress in male rats (M) and in female rats during ovulatory (FOV) and non-ovulatory phases (FNOV) of the estrous cycle and after deprivation of ovarian hormones (FO). Direct AP was recorded, and BRS was assessed by using increasing doses of phenylephrine and sodium nitroprusside. AP and heart rate variability were assessed by spectral analysis. Oxidative stress profile was evaluated in cardiac, renal, and muscle tissues. In females, the ovulatory phase and ovarian hormone deprivation induced an increase in AP (FOV and FO ~ 9 mmHg) when compared to the non-ovulatory phase. Ovariectomy promoted increased cardiac sympathovagal balance (~ 17–37%) when compared to other groups. Both FOV and FO groups presented impaired BRS, associated with higher AP variability. In general, antioxidant capacity was higher in the FNOV than in the M group. Ovarian hormone deprivation induced a decrease in catalase activity in cardiac and renal tissues and an increase in lipid peroxidation in all tissues analyzed. Positive correlations (p < 0.05) were found between vascular sympathetic modulation and lipid peroxidation in cardiac (r = 0.60), renal (r = 0.60), and muscle (r = 0.57) tissues. In conclusion, both oscillation and deprivation of ovarian hormones play an important role in cardiovascular autonomic control and oxidative stress profile in target organs, which is reflected in AP changes.
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Affiliation(s)
- Maycon Junior Ferreira
- Physiology Exercise Laboratory, Department of Physiology, Federal University of Sao Paulo (UNIFESP), Sao Paulo, Brazil
| | - Iris Callado Sanches
- Human Movement Laboratory, Sao Judas Tadeu University (USJT), Sao Paulo, SP, Brazil
| | - Luciana Jorge
- Hypertension Unit, Heart Institute, University of Sao Paulo (USP), Sao Paulo, Brazil
| | - Susana Francisca Llesuy
- University Institute of Italian Hospital, Italian Hospital of Buenos Aires (HIBA), Buenos Aires, Argentina
| | | | - Kátia De Angelis
- Physiology Exercise Laboratory, Department of Physiology, Federal University of Sao Paulo (UNIFESP), Sao Paulo, Brazil. .,Laboratory of Translational Physiology, Nove de Julho University (UNINOVE), Sao Paulo, SP, Brazil.
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KITTNAR O. Selected Sex Related Differences in Pathophysiology of Cardiovascular System. Physiol Res 2020; 69:21-31. [DOI: 10.33549/physiolres.934068] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The annual incidence of cardiovascular diseases is age-dependently increasing both in men and women, however, the prevalence is higher in men until midlife. The higher incidence of cardiovascular disease in men than in women of similar age, and the menopause-associated increase in cardiovascular disease in women, has led to speculation that gender-related differences in sex hormones might have a key role in the development and evolution of cardiovascular disease. There are several suggested pathways in which gender and sex hormones can affect human cardiovascular system to produce original sexually different pathophysiology between women and men. Sex steroid hormones and their receptors are critical determinants of cardiovascular gender differences. Also arterial blood pressure is typically lower in women than in men what could be explained particularly by greater synthesis of nitric oxide (NO) in women. Female cardiomyocytes have a greater survival advantage when challenged with oxidative stress, suggesting that female hormones may play an important role in antioxidative protection of myocardium. It was also demonstrated in animal models that combination of XX chromosomes versus an XY chromosomes enhances sex differences in higher HDL cholesterol. Women were found to have reduced sympathetic activity (reflected by lower total peripheral resistance) and pulmonary artery pressure and enhanced parasympathetic activity relative to men. Similarly, men were found to have higher plasma norepinephrine levels than women. Regarding differences between the sexes in electrophysiology of the heart, two principle mechanisms have been proposed to explain them: hormonal effects on the expression or function of ion channels or, conversely, differences in autonomic tone. To improve diagnosis and treatment of cardiovascular diseases, greater focus on understanding the molecular and cellular physiology of the sex steroid hormones and their receptors in the cardiovascular system will be required.
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Affiliation(s)
- O. KITTNAR
- Institute of Physiology of the First Faculty of Medicine, Charles University, Prague, Czech Republic
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Sakai S, Inoue-Sato M, Amemiya R, Murakami M, Inagaki K, Sakairi Y. The influence of autogenic training on the physical properties of skin and cardiac autonomic activity in postmenopausal women: an exploratory study. Int J Dermatol 2020; 59:103-109. [PMID: 31294461 DOI: 10.1111/ijd.14582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 05/08/2019] [Accepted: 06/14/2019] [Indexed: 01/24/2023]
Abstract
BACKGROUND Autogenic training (AT) is a major relaxation training technique whose clinical efficacy has been verified in dermatology. Many reports demonstrate ameliorated skin conditions in AT-treated subjects with reduced psychological stress. However, no studies have examined the effects of AT on the skin of postmenopausal women. OBJECTIVES We examine the influences of AT on the physical properties of skin and cardiac autonomic activity in postmenopausal women. METHODS Postmenopausal women were classed into an AT group and a control one. The women in the AT group were mentored by a professional to practice AT twice a day for 7 weeks. The women in the control group were instructed to close their eyes for 3 minutes instead of AT. Hydration of the stratum corneum (SC), transepidermal water loss (TEWL), skin elasticity and heart-rate variability (HRV) were measured before and after the study period to examine how they changed. RESULTS SC hydration and skin elasticity of the cheek, increased in both groups, and the increase was significantly higher in the AT group (n = 14) than in the control group (n = 12) (P < 0.05, Cohen's d = 1.03; P < 0.05, Cohen's d = 0.99; respectively). TEWL did not change in either group. LF/HF was lower in the AT group than in the control group (P < 0.05, Cohen's d = 0.91). CONCLUSION AT increased SC hydration and skin elasticity with changes in the balance of autonomic nervous system activity in postmenopausal women, implying that AT may have improvement effects on aged skin by menopause.
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Affiliation(s)
- Shingo Sakai
- Skincare Products Research, Kao Corporation, Odawara, Kanagawa, Japan
| | - Mayumi Inoue-Sato
- Skincare Products Research, Kao Corporation, Odawara, Kanagawa, Japan
| | - Rei Amemiya
- Faculty of Health and Sports Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Motoko Murakami
- Skincare Products Research, Kao Corporation, Odawara, Kanagawa, Japan
| | - Kazuki Inagaki
- Faculty of Health and Sports Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yosuke Sakairi
- Faculty of Health and Sports Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
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12
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Interaction between cardiovascular autonomic control and sex hormones in perimenopausal women under menopausal hormone therapy. Cardiovasc Endocrinol Metab 2018; 7:58-63. [PMID: 31646283 DOI: 10.1097/xce.0000000000000153] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 02/20/2018] [Indexed: 11/26/2022]
Abstract
Objective The aim of this study was to assess the dynamical interaction between the cardiovascular autonomic control and sex hormones in perimenopausal women under menopausal hormone therapy (MHT). Patients and methods Seventy women (age: 51.6±2.1 years) were treated with MHT. Standard time and frequency domain measures of heart rate variability (HRV) and index S of synchronization between the slow oscillations in HRV and photoplethysmographic waveform variability were studied during a 6-week treatment with MHT. We assessed also the dynamics of the following sex hormones: estradiol, follicle-stimulating hormone, dehydroepiandrosterone sulfate, and testosterone. Results MHT increased estradiol and decreased follicle-stimulating hormone. Hot flashes and index S were significantly decreased under MHT (P<0.05). Other autonomic indices were not significantly changed (P>0.05). Changes of index S did not correlate with changes of sex hormones and hot flushes (P>0.05). Conclusion The obtained results may indicate the independence of heart autonomic control (assessed by HRV measures) from women's hormonal status. However, any changes in sex hormones contribute to changes in the systemic control of circulation, which is assessed by index S.
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von Holzen JJ, Capaldo G, Wilhelm M, Stute P. Impact of endo- and exogenous estrogens on heart rate variability in women: a review. Climacteric 2016; 19:222-8. [PMID: 26872538 DOI: 10.3109/13697137.2016.1145206] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Measurement of heart rate variability (HRV) is an established method to assess the activity of the autonomic nervous system. The aim of this review was to examine the link between HRV, reproductive life stages and menopausal hormone therapy. A literature review was performed using the Medline database. Based on title and abstract, 45 studies were extracted out of 261 citations screened. Due to different study designs and evaluation methods, HRV indices were not directly comparable. Qualitative comparisons in between the vast majority of studies, however, demonstrated a decrease of the vagal dominance on the heart from the follicular to the luteal cycle phase, although some studies asserted no change. The intake of oral contraceptives appeared not to alter the vagal modulation of the heart. All investigations agreed on a decline of HRV towards higher sympathetic control after menopause. Different menopausal hormone therapy approaches showed a supporting impact of estrogen on HRV in most studies. A combined therapy of estrogen and progestogens revoked this benefit. Further research is needed to demonstrate how this process might be attenuated by different menopausal hormone therapies.
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Affiliation(s)
- J J von Holzen
- a Department of Obstetrics and Gynecology , Inselspital, University of Bern , Switzerland
| | - G Capaldo
- a Department of Obstetrics and Gynecology , Inselspital, University of Bern , Switzerland
| | - M Wilhelm
- b Department of Cardiology , Inselspital, University of Bern , Switzerland
| | - P Stute
- a Department of Obstetrics and Gynecology , Inselspital, University of Bern , Switzerland
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Lejsková M, Piťha J, Adámková S, Auzký O, Adámek T, Babková E, Lánská V, Alušík Š. Bilateral oophorectomy may have an unfavorable effect on glucose metabolism compared with natural menopause. Physiol Res 2016; 63:S395-402. [PMID: 25428745 DOI: 10.33549/physiolres.932878] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The incidence of diabetes mellitus is rising worldwide. The aim of this prospective epidemiological study was to compare the effects of natural and surgical menopause on parameters of glucose metabolism. In a group of 587 repeatedly examined women, with a baseline age of 45-55 years, the following subgroups of women were separated: those after bilateral oophorectomy (BO, n=37) and those in natural menopause (NAT, n=380) including women menopausal already at baseline (POST, n=89). The study parameters including glycemia, insulinemia, HOMA-IR and beta-cell function using HOMA-beta were determined at baseline and 6 years later. Over the study period, there was a marked rise in prediabetic and diabetic values of fasting glycemia; the percentage of women with diabetic values increased in the NAT (from 0.8 % to 3.9 %) and POST (from 2.2 % to 9.0 %) subgroups, with the highest prevalence in the BO subgroup (from 8.1 % to 10.8 %). While, among women with non-diabetic fasting glycemia, an increase in fasting glycemia was observed in all study subgroups, it was more marked in the BO subgroup than in the NAT and POST ones (p=0.02 both). This difference between NAT and BO was also found in the long-term trend of development of glycemia in non-diabetic women (p=0.014). Compared with natural menopause, bilateral oophorectomy may have an adverse effect on glucose metabolism.
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Affiliation(s)
- M Lejsková
- Department of Internal Medicine, Thomayer Hospital, Prague, Czech Republic.
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15
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Rastović M, Srdić Galić B, Barak O, Stokić E, Vasiljev R. HEART RATE VARIABILITY IN METABOLICALLY HEALTHY AND METABOLICALLY UNHEALTHY OBESE PREMENOPAUSAL WOMEN. ACTA ENDOCRINOLOGICA-BUCHAREST 2016; 12:35-42. [PMID: 31258798 DOI: 10.4183/aeb.2016.35] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Content Metabolically healthy obese (MHO) individuals are characterized by absence of metabolic syndrome. The role of autonomic nervous system in metabolic profile of obese subjects has not been sufficiently investigated. Objective We analyzed heart rate variability (HRV) in MHO and metabolically unhealthy obese (MUO) premenopausal women. Design In 42 women metabolic profile was defined as MHO and MUO. Subjects and Methods For metabolic profile Wildman, IDF and HOMA-IR criteria were used. Autonomic nervous system activity was assessed by analysis of heart rate variability. Results There was no significant difference in HRV between MHO and MUO premenopausal women. In Wildman division, after adjustment for systolic blood pressure, RRNN and LF/HF were statistically different between groups (p=0.0001; p=0.029). In IDF division, adjusting for waist circumference, LF was significantly different between groups (p=0.004). In HOMA division, adjusting for HOMA, groups were different in SDNN (p=0.009), RMSSD (p=0.002), pNN50 (p=0.003), HF(p=0.002) and TP (p=0.005). Conclusions Autonomic nervous system does not share the leading role in premenopausal women metabolic profile. The differences in HRV between MHO and MUO women depend on the metabolic health criteria. Systolic blood pressure, HOMA and waist circumference have significant effect on HRV differences between MHO and MUO premenopausal women.
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Affiliation(s)
- M Rastović
- General Hospital Subotica, Department of Internal Medicine - Endocrinology, Subotica, University of Novi Sad, Faculty of Medicine, Novi Sad, Serbia
| | | | - O Barak
- Department of Physiology, Novi Sad, Serbia
| | - E Stokić
- Institute of Internal Disease, Department of Endocrinology, Diabetes and Metabolic Disorders, Novi Sad, Serbia
| | - R Vasiljev
- CINDI Serbia, Researcher, Novi Sad, Serbia
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16
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Yang SG, Mlček M, Kittnar O. Gender differences in electrophysiological characteristics of idiopathic ventricular tachycardia originating from right ventricular outflow tract. Physiol Res 2015; 63:S451-8. [PMID: 25669676 DOI: 10.33549/physiolres.932920] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
It has become increasingly apparent in recent years that there are important differences of many cardiovascular disorders including ventricular tachycardias in men and women. Nevertheless, so far just few studies have addressed possible gender differences in electrophysiological characteristics of idiopathic ventricular tachycardia from right ventricular outflow tract (RVOT-VT), other than epidemiological ones. This study explored possible gender differences in electrophysiological characteristics and catheter ablation outcome in RVOT-VT patients. Ninety-three patients (mean age 38.7+/-15.5 years, 30 males) with idiopathic RVOT-VT were enrolled and analyzed in our study. Male patients had longer QRS width (99.9+/-19.4 ms vs. 88.4+/-20.7 ms, p=0.02). Female patients had lower right ventricular mean voltage (3.0+/-0.7 mV vs. 3.7+/-0.9 mV, p=0.03), and more low voltage zone over the right ventricular outflow tract free wall (27.0 % vs. 6.7 %, p=0.02). Eighty-one patients passed catheter ablation (23 males). The acute success rate, repeated catheter ablation rate and VT recurrence rate were similar in both genders. The present study provides evidence of the gender differences in electrophysiological findings in patients with idiopathic RVOT-VT. Studies on gender-specific differences in arrhythmia could lead to a better understanding of its mechanism(s) and provide valuable information for the development of optimal treatment strategies.
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Affiliation(s)
- S-G Yang
- Institute of Physiology, Charles University in Prague, First Faculty of Medicine, Prague, Czech Republic.
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Motofei IG, Rowland DL, Popa F, Bratucu E, Straja D, Manea M, Georgescu SR, Paunica S, Bratucu M, Balalau C, Constantin VD. A Pilot Study on Tamoxifen Sexual Side Effects and Hand Preference in Male Breast Cancer. ARCHIVES OF SEXUAL BEHAVIOR 2015; 44:1589-1594. [PMID: 26108899 DOI: 10.1007/s10508-015-0530-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 03/09/2015] [Accepted: 03/12/2015] [Indexed: 06/04/2023]
Abstract
Recent clinical and imaging studies suggest that sex hormones modulate sexuality according to a psychophysiologic process of lateralization of the brain, with androgens playing a greater role in sexual functioning of left hemibrain/right handedness and estrogens possibly for right hemibrain/left handedness. Based on this perspective, the current study attempted to specify the relationship between hand preference, estrogens, and sexual function in subjects with male breast cancer, taking into account the sexual side effects of tamoxifen as the agent for inhibiting estrogen action. Twenty-eight Romanian men-17 right-handed and 11 left-handed-undergoing treatment with tamoxifen for male breast cancer participated in this study. These men were assessed both prior to and during tamoxifen treatment using the International Index of Erectile Function, a standardized instrument used for the evaluation of various aspects of sexual functioning, including erectile function (EF), orgasmic function (OF), sexual desire (SD), and overall functioning (OF). A main effect for handedness was found on EF, OF, SD, and OS scales, with right-handed men showing higher functioning than left-handed men. Regarding interaction effects, the left-handed group of men showed greater decreased sexual functioning during tamoxifen (on three subscales: OF, SD, OS) compared to right-handed men. Further research should be conducted in order to support and refine this potential lateralized process of sexual neuromodulation within the brain.
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Affiliation(s)
- Ion G Motofei
- Faculty of General Medicine, Carol Davila University of Medicine and Pharmacy, Cazangiilor Street, No. 10, Sect. 3, 03306, Bucharest, Romania,
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18
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Sivasinprasasn S, Sa-nguanmoo P, Pratchayasakul W, Kumfu S, Chattipakorn SC, Chattipakorn N. Obese-insulin resistance accelerates and aggravates cardiometabolic disorders and cardiac mitochondrial dysfunction in estrogen-deprived female rats. AGE (DORDRECHT, NETHERLANDS) 2015; 37:28. [PMID: 25791519 PMCID: PMC4366429 DOI: 10.1007/s11357-015-9766-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2015] [Accepted: 03/09/2015] [Indexed: 06/04/2023]
Abstract
Women have a lower incidence of cardiovascular diseases (CVD) than men at a similar age but have an increased incidence of CVD and metabolic syndrome after menopause, indicating the possible protective effects of estrogen on cardiometabolic function. Although obesity is known to increase CVD risks, its impact on the heart on estrogen deprivation is still inconclusive. We investigated the effects of obese-insulin resistance on cardiometabolic function in estrogen-deprived ovariectomized rats. Adult female ovariectomized (O) or sham (S)-operated rats randomly received either normal diet (ND, 19.77 % fat) or high-fat diet (HF, 57.60 % fat) (n = 6/group) for 12 weeks. The heart rate variability (HRV), left ventricular (LV) performance, cardiac autonomic balance, cardiac mitochondrial function, metabolic parameters, oxidative stress, and apoptotic markers were determined at 4, 8, and 12 weeks. Insulin resistance developed at week 8 in NDO, HFS, and HFO rats as indicated by increased plasma insulin and HOMA index. However, only HFO rats had elevated plasma cholesterol level at week 8, whereas HFS rats had showed elevation at week 12. In addition, only HFO rats had depressed HRV, impaired LV performance indicated by decreased fractional shortening (%FS) and cardiac mitochondrial dysfunction indicated by increased mitochondrial ROS level, mitochondrial depolarization and swelling, as early as week 8, whereas other groups exhibited them at week 12. Either estrogen deprivation or obesity alone may impair metabolic parameters, cardiac autonomic balance, and LV and mitochondrial function. However, an obese insulin-resistant condition further accelerated and aggravated the development of these cardiometabolic impairments in estrogen-deprived rats.
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Affiliation(s)
- Sivaporn Sivasinprasasn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200 Thailand
- School of Health Science, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200 Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, 50200 Thailand
| | - Piangkwan Sa-nguanmoo
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200 Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200 Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, 50200 Thailand
| | - Wasana Pratchayasakul
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200 Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200 Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, 50200 Thailand
| | - Sirinart Kumfu
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200 Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200 Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, 50200 Thailand
| | - Siriporn C. Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200 Thailand
- Department of Oral Biology and Diagnostic Science, Faculty of Dentistry, Chiang Mai University, Chiang Mai, 50200 Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, 50200 Thailand
| | - Nipon Chattipakorn
- Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200 Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200 Thailand
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, 50200 Thailand
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Sánchez-Barajas M, Figueroa-Vega N, Ibarra-Reynoso LDR, Moreno-Frías C, Malacara JM. Influence of heart rate variability and psychosocial factors on carotid stiffness, elasticity and impedance at menopause. Arch Med Res 2015; 46:118-26. [PMID: 25747966 DOI: 10.1016/j.arcmed.2015.02.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 02/23/2015] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND AIMS The risk for cardiovascular diseases (CVD) increases after menopause. Heart rate variability (HRV), a measure of autonomic control, is a strong predictor of CVD. We undertook this study to test the association of ultrasound indices of early carotid atherosclerosis with HRV, symptoms, hormonal conditions, metabolic state, indicators of stress, and psychosocial factors in women at peri- and postmenopause, registering ambulatory R-R interval monitoring. METHODS In a cross-sectional design we studied 100 women at peri- and early postmenopause collecting anthropometry, symptoms, stress-related measurements, metabolic variables, cortisol, FSH and estradiol. We evaluated carotid ultrasonographic indices, and HRV was recorded for 4 h calculating time (SDNN, pNN50, rMSSD) and frequency domains (LF, HF, LF/HF) in women according to menopausal stage, estradiol levels, body mass index and waist circumference. RESULTS Carotid indices were similar in peri- and postmenopausal women. For HRV measurements, SDNN was increased at postmenopause. Women with estradiol levels <109.2 pmol/L had increased intima-media thickness (IMT), resistive index, and systolic diameter. Using multivariate analysis, we found the associations of IMT positively with non-HDL-cholesterol, resistive index positively with LF-HRV, but negatively with effort/reward imbalance, carotid β stiffness index inversely with estradiol, and arterial distensibility positively with HF-HRV and creatinine concentrations, but negatively with non-HDL-cholesterol. CONCLUSIONS Carotid thickness was related mainly with lipid alterations. Indices of early carotid damage were related with various components of HRV as a manifestation of autonomic imbalance, indicating CVD risk. Other factors involved were time since last menses and psychological stress. Low creatinine was associated with diminished carotid distensibility. This suggests that estrogen, lifestyle, behavior and autonomic regulation participate in vascular damage.
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Affiliation(s)
- Mauricio Sánchez-Barajas
- Department of Medical Sciences, University of Guanajuato, León Campus, León, Gto., México; Department of Internal Medicine, General Hospital Zone/MF 21, León, Gto., México
| | - Nicté Figueroa-Vega
- Department of Medical Sciences, University of Guanajuato, León Campus, León, Gto., México
| | | | - Carmen Moreno-Frías
- Department of Medical Sciences, University of Guanajuato, León Campus, León, Gto., México
| | - Juan Manuel Malacara
- Department of Medical Sciences, University of Guanajuato, León Campus, León, Gto., México.
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