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Kokko E, Choudhary MK, Mutanen A, Honkonen M, Tikkakoski A, Koskela JK, Hämäläinen M, Moilanen E, Viukari M, Matikainen N, Nevalainen PI, Pörsti I. Volume overload is a major characteristic in primary aldosteronism: a 3-year follow-up study. J Hypertens 2024; 42:1057-1065. [PMID: 38406920 PMCID: PMC11064919 DOI: 10.1097/hjh.0000000000003696] [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: 10/31/2023] [Accepted: 02/05/2024] [Indexed: 02/27/2024]
Abstract
OBJECTIVES We examined haemodynamics, focusing on volume balance and forward and backward wave amplitudes, before and after 2.8 years of targeted treatment of primary aldosteronism. Patients with essential hypertension and normotensive individuals were examined for comparison ( n = 40 in each group). METHODS Recordings were performed using radial artery pulse wave analysis and whole-body impedance cardiography. Unilateral aldosteronism was treated with adrenalectomy ( n = 20), bilateral aldosteronism with spironolactone-based medication ( n = 20), and essential hypertension with standard antihypertensive agents. RESULTS Aortic SBP and DBP, forward and backward wave amplitudes, and systemic vascular resistance were equally elevated in primary aldosteronism and essential hypertension. All these haemodynamic variables were similarly reduced by the treatments. Primary aldosteronism presented with 1 litre (∼10%) extracellular water excess ( P < 0.001) versus the other groups, and this excess was normalized by treatment. Initial pulse wave velocity (PWV) was similarly increased in primary aldosteronism and essential hypertension, but final values remained higher in primary aldosteronism ( P < 0.001). In regression analyses, significant explanatory factors for treatment-induced forward wave amplitude reduction were decreased systemic vascular resistance ( β = 0.380) and reduced extracellular water volume ( β = 0.183). Explanatory factors for backward wave amplitude reduction were changes in forward wave amplitude ( β = 0.599), heart rate ( β = -0.427), and PWV ( β = 0.252). CONCLUSION Compared with essential hypertension, the principal haemodynamic difference in primary aldosteronism was higher volume load. Volume excess elevated forward wave amplitude, which was subsequently reduced by targeted treatment of primary aldosteronism, along with normalization of volume load. We propose that incorporating extracellular water evaluation alongside routine diagnostics could enhance the identification and diagnosis of primary aldosteronism.
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Affiliation(s)
- Eeva Kokko
- Faculty of Medicine and Health Technology, Tampere University
| | | | - Aapo Mutanen
- Faculty of Medicine and Health Technology, Tampere University
| | - Milja Honkonen
- Faculty of Medicine and Health Technology, Tampere University
| | - Antti Tikkakoski
- Faculty of Medicine and Health Technology, Tampere University
- Department of Clinical Physiology and Nuclear Medicine
| | - Jenni K. Koskela
- Faculty of Medicine and Health Technology, Tampere University
- Department of Internal Medicine, Tampere University Hospital
| | - Mari Hämäläinen
- Faculty of Medicine and Health Technology, Tampere University
- Immunopharmacology Research Group, Tampere University and Tampere University Hospital, Tampere
| | - Eeva Moilanen
- Faculty of Medicine and Health Technology, Tampere University
- Immunopharmacology Research Group, Tampere University and Tampere University Hospital, Tampere
| | - Marianna Viukari
- Endocrinology, Helsinki University Hospital and Research Programs Unit, Clinical and Molecular Medicine, University of Helsinki, Helsinki, Finland
| | - Niina Matikainen
- Endocrinology, Helsinki University Hospital and Research Programs Unit, Clinical and Molecular Medicine, University of Helsinki, Helsinki, Finland
| | | | - Ilkka Pörsti
- Faculty of Medicine and Health Technology, Tampere University
- Department of Internal Medicine, Tampere University Hospital
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Haapala EA, Leppänen MH, Lee E, Savonen K, Laukkanen JA, Kähönen M, Brage S, Lakka TA. Accumulating Sedentary Time and Physical Activity From Childhood to Adolescence and Cardiac Function in Adolescence. J Am Heart Assoc 2024; 13:e031837. [PMID: 38497441 PMCID: PMC11010014 DOI: 10.1161/jaha.123.031837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 02/16/2024] [Indexed: 03/19/2024]
Abstract
BACKGROUND Increased physical activity (PA) may mitigate the negative cardiovascular health effects of sedentary behavior in adolescents. However, the relationship of PA and sedentary time from childhood with cardiac function in adolescence remains underexplored. Therefore, we investigated the associations of cumulative sedentary time and PA from childhood to adolescence with cardiac function in adolescence. METHODS AND RESULTS Participants were 153 adolescents (69 girls) who were aged 6 to 8 years at baseline, 8 to 10 years at 2-year follow-up, and 15 to 17 years at 8-year follow-up. Cumulative sedentary time and PA exposure between baseline and 2-year follow-up and between baseline and 8-year follow-up were measured using a combined accelerometer and heart rate monitor. Cardiac function was assessed using impedance cardiography at 8-year follow-up. The data were analyzed using linear regression analyses adjusted for age and sex. Cumulative moderate to vigorous PA (standardized regression coefficient [β]=-0.323 [95% CI, -0.527 to -0.119]) and vigorous PA (β=-0.295 [95% CI, -0.508 to -0.083]) from baseline to 8-year follow-up were inversely associated with cardiac work at 8-year follow-up. Conversely, cumulative sedentary time had a positive association (β=0.245 [95% CI, 0.092-0.398]). Cumulative vigorous PA from baseline to 8-year follow-up was inversely associated with cardiac work index at 8-year follow-up (β=-0.218 [95% CI, -0.436 to 0.000]). CONCLUSIONS Higher levels of sedentary time and lower levels of PA during childhood were associated with higher cardiac work in adolescence, highlighting the importance of increasing PA and reducing sedentary time from childhood.
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Affiliation(s)
- Eero A. Haapala
- Faculty of Sport and Health SciencesUniversity of JyväskyläJyväskyläFinland
- Institute of Biomedicine, School of MedicineUniversity of Eastern FinlandKuopioFinland
| | - Marja H. Leppänen
- Institute of Biomedicine, School of MedicineUniversity of Eastern FinlandKuopioFinland
- Faculty of MedicineUniversity of HelsinkiFinland
| | - Earric Lee
- Faculty of Sport and Health SciencesUniversity of JyväskyläJyväskyläFinland
| | - Kai Savonen
- Foundation for Research in Health Exercise and NutritionKuopio Research Institute of Exercise MedicineKuopioFinland
| | - Jari A. Laukkanen
- Institute of Public Health and Clinical NutritionUniversity of Eastern FinlandKuopioFinland
- Department of MedicineWellbeing Services County of Central FinlandJyväskyläFinland
| | - Mika Kähönen
- Department of Clinical Physiology, Tampere University Hospital and Faculty of Medicine and Health TechnologyTampere UniversityTampereFinland
| | - Soren Brage
- MRC Epidemiology UnitUniversity of Cambridge School of Clinical MedicineCambridgeUnited Kingdom
| | - Timo A. Lakka
- Institute of Biomedicine, School of MedicineUniversity of Eastern FinlandKuopioFinland
- Foundation for Research in Health Exercise and NutritionKuopio Research Institute of Exercise MedicineKuopioFinland
- Department of Clinical Physiology and Nuclear ImagingUniversity of Eastern Finland and Kuopio University HospitalKuopioFinland
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Xiao YC, Li WY, Zhang L, Fan JF, Wang WZ, Wang YK. Effect of supervised exercise training on cardiovascular function in patients with intermittent claudication: a systematic review and meta-analysis of randomized controlled trials. Clin Res Cardiol 2024:10.1007/s00392-024-02423-4. [PMID: 38451260 DOI: 10.1007/s00392-024-02423-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 02/22/2024] [Indexed: 03/08/2024]
Abstract
This study aimed to determine the effect of supervised exercise training (SET) on cardiovascular function in patients with intermittent claudication (IC). A systematic search in MEDLINE, Embase, and Cochrane Central Register of Controlled Trials databases was conducted. Primary outcomes were systolic blood pressure (SBP), diastolic blood pressure (DBP), heart rate (HR), rate pressure product (RPP), cardiac output (CO), peak oxygen consumption (VO2peak), and heart rate variability (HRV). Secondary outcomes were maximum walking distance (MWD) and pain-free walking distance (PFWD). Outcomes were reported as weighted mean difference (WMD) between the SET group and the control group and synthesized by using the random-effects model. Seventeen RCTs with a total of 936 patients were included in this review. SET resulted in significant improvements of SBP (WMD = - 7.40, 95% CI - 10.69 ~ - 4.11, p < 0.001, I2 = 15.2%), DBP (WMD = - 1.92, 95% CI - 3.82 ~ - 0.02, p = 0.048, I2 = 0.0%), HR (WMD = - 3.38, 95% CI - 6.30 ~ - 0.46, p = 0.023, I2 = 0.0%), RPP (WMD = - 1072.82, 95% CI - 1977.05 ~ - 168.59, p = 0.020, I2 = 42.7%), and VO2peak with plantar flexion ergometer exercise (WMD = 5.57, 95% CI 1.66 ~ 9.49, p = 0.005, I2 = 62.4%), whereas CO and HRV remained statistically unaltered. SET also improved MWD (WMD = 139.04, 95% CI 48.64 ~ 229.44, p = 0.003, I2 = 79.3%) and PFWD (WMD = 40.02, 95% CI 23.85 ~ 56.18, p < 0.001, I2 = 0.0%). In conclusion, SET is effective in improving cardiovascular function in patients with IC, which was confirmed on outcomes of cardiovascular function associated with exercise ability. The findings hold out that the standard therapy of SET can improve not only walking distance but also cardiovascular function in patients with IC.
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Affiliation(s)
- Yu-Chen Xiao
- Naval Medical Center of PLA, 880 Xiangyin Road, Shanghai, 200433, China
| | - Wan-Yang Li
- School of Basic Medical Sciences, Naval Medical University (Second Military Medical University), Shanghai, China
| | - Lei Zhang
- Department of Vascular Surgery, Changhai Hospital, Naval Medical University (Second Military Medical University), Shanghai, China
| | - Jie-Fu Fan
- Department of Vascular Surgery, Changhai Hospital, Naval Medical University (Second Military Medical University), Shanghai, China
| | - Wei-Zhong Wang
- Naval Medical Center of PLA, 880 Xiangyin Road, Shanghai, 200433, China.
| | - Yang-Kai Wang
- Naval Medical Center of PLA, 880 Xiangyin Road, Shanghai, 200433, China.
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Ghahremani-Nasab L, Toufan-Tabrizi M, Javanshir E, Rahimi M. Assessing cardiac power output values in a healthy adult population. THE INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING 2024; 40:517-526. [PMID: 38085404 DOI: 10.1007/s10554-023-03019-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 11/21/2023] [Indexed: 03/20/2024]
Abstract
Cardiac power output (CPO), which combines pressure and flow capacities, directly measures the heart's pumping capability. It is proposed as a superior alternative to ejection fraction in assessing cardiac function. However, there is a lack of data on CPO in healthy individuals, prompting a study to determine the cardiac power output in healthy adults in the Iranian population. This cross-sectional descriptive study investigated cardiac power in a sample of healthy individuals. Participants were recruited from healthy individuals referred to the Echocardiography department using convenience sampling. In this study, we examined the echocardiographic parameters in 173 individuals, of which 52% were men. Men exhibited significantly higher values for stroke volume, cardiac output, and cardiac power output (CPO) in both ventricles, as well as larger body surface area (BSA) and systemic mean arterial pressure (MAP), compared to women. Individuals under the age of 40 had significantly higher BSA and right ventricular cardiac output compared to those aged 40 or above. Multivariate analysis revealed that MAP, left ventricular (LV) cardiac output, LVCPO, pulmonary MAP, right ventricular (RV) CPO, and RV cardiac power index (CPI) were significant predictors of LVCPI changes. Our findings emphasize the importance of cardiac power output as a comprehensive measure of cardiac function, complementing the traditional use of ejection fraction. Further research is warranted to validate these results, establish accurate reference ranges, and explore the clinical implications of cardiac power output in various patient populations.
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Affiliation(s)
- Leila Ghahremani-Nasab
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Daneshgah Street, Tabriz, Eastern Azerbaijan, Iran
| | - Mehrnoush Toufan-Tabrizi
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Daneshgah Street, Tabriz, Eastern Azerbaijan, Iran.
| | - Elnaz Javanshir
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Daneshgah Street, Tabriz, Eastern Azerbaijan, Iran
| | - Mehran Rahimi
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Daneshgah Street, Tabriz, Eastern Azerbaijan, Iran
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Bouquin H, Koskela JK, Tikkakoski A, Honkonen M, Hiltunen TP, Mustonen JT, Pörsti IH. Differences in heart rate responses to upright posture are associated with variations in the high-frequency power of heart rate variability. Am J Physiol Heart Circ Physiol 2024; 326:H479-H489. [PMID: 38133619 DOI: 10.1152/ajpheart.00567.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 12/23/2023]
Abstract
High resting heart rate is a cardiovascular risk factor, but limited data exist on the underlying hemodynamics and reproducibility of supine-to-upright increase in heart rate. We recorded noninvasive hemodynamics in 574 volunteers [age, 44.9 yr; body mass index (BMI), 26.4 kg/m2; 49% male] during passive head-up tilt (HUT) using whole body impedance cardiography and radial artery tonometry. Heart rate regulation was evaluated using heart rate variability (HRV) analyses. Comparisons were made between quartiles of supine-to-upright heart rate changes, in which heart rate at rest ranged 62.6-64.8 beats/min (P = 0.285). The average upright increases in heart rate in the quartiles 1-4 were 4.7, 9.9, 13.5, and 21.0 beats/min, respectively (P < 0.0001). No differences were observed in the low-frequency power of HRV, whether in the supine or upright position, or in the high-frequency power of HRV in the supine position. Upright high-frequency power of HRV was highest in quartile 1 with lowest upright heart rate and lowest in quartile 4 with highest upright heart rate. Mean systolic blood pressure before and during HUT (126 vs. 108 mmHg) and the increase in systemic vascular resistance during HUT (650 vs. 173 dyn·s/cm5/m2) were highest in quartile 1 and lowest in quartile 4. The increases in heart rate during HUT on three separate occasions several weeks apart were highly reproducible (r = 0.682) among 215 participants. To conclude, supine-to-upright increase in heart rate is a reproducible phenotype with underlying differences in the modulation of cardiac parasympathetic tone and systemic vascular resistance. As heart rate at rest influences prognosis, future research should elucidate the prognostic significance of these phenotypic differences.NEW & NOTEWORTHY Subjects with similar supine heart rates are characterized by variable increases in heart rate during upright posture. Individual heart rate increases in response to upright posture are highly reproducible as hemodynamic phenotypes and present underlying differences in the modulation of cardiac parasympathetic tone and systemic vascular resistance. These results indicate that resting heart rate obtained in the supine position alone is not an optimal means of classifying people into groups with differences in cardiovascular function.
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Affiliation(s)
- Heidi Bouquin
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Jenni K Koskela
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Antti Tikkakoski
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Clinical Physiology and Nuclear Medicine, Tampere University Hospital, Tampere, Finland
| | - Milja Honkonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Timo P Hiltunen
- Research Program for Clinical and Molecular Metabolism, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Faculty of Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Jukka T Mustonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka H Pörsti
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
- Finnish Cardiovascular Research Center Tampere, Tampere University, Tampere, Finland
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Choudhary MK, Bouquin H, Hytönen J, Koskela JK, Niemelä O, Nevalainen PI, Mustonen J, Pörsti I. Blood Haemoglobin Concentration Is Directly and Independently Related with Pulse Wave Velocity, a Measure of Large Artery Stiffness. J Clin Med 2023; 12:7623. [PMID: 38137695 PMCID: PMC10743951 DOI: 10.3390/jcm12247623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/20/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023] Open
Abstract
High haemoglobin level has been associated with metabolic syndrome, elevated blood pressure (BP), and increased mortality risk. In this cross-sectional study, we investigated the association of blood haemoglobin with haemodynamics in 743 subjects, using whole-body impedance cardiography and pulse wave analysis. The participants were allocated to sex-stratified haemoglobin tertiles with mean values 135, 144, and 154 g/L, respectively. The mean age was similar in all tertiles, while body mass index was higher in the highest versus the lowest haemoglobin tertile. The highest haemoglobin tertile had the highest erythrocyte and leukocyte counts, plasma C-reactive protein, uric acid, renin activity, and aldosterone. The lipid profile was less favourable and insulin sensitivity lower in the highest versus the lowest haemoglobin tertile. Aortic BP, cardiac output, and systemic vascular resistance were similar in all tertiles, while the pulse wave velocity (PWV) was higher in the highest versus the lowest haemoglobin tertile. In linear regression analysis, age (Beta 0.478), mean aortic BP (Beta 0.178), uric acid (Beta 0.150), heart rate (Beta 0.148), and aldosterone-to-renin ratio (Beta 0.123) had the strongest associations with PWV (p < 0.001 for all). Additionally, haemoglobin concentration was an explanatory factory for PWV (Beta 0.070, p = 0.028). To conclude, blood haemoglobin concentration had a small direct and independent association with a measure of large artery stiffness.
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Affiliation(s)
- Manoj Kumar Choudhary
- Faculty of Medicine and Health Technology, Tampere University, 33014 Tampere, Finland; (M.K.C.); (H.B.); (J.K.K.); (J.M.)
| | - Heidi Bouquin
- Faculty of Medicine and Health Technology, Tampere University, 33014 Tampere, Finland; (M.K.C.); (H.B.); (J.K.K.); (J.M.)
| | - Jere Hytönen
- Faculty of Medicine and Health Technology, Tampere University, 33014 Tampere, Finland; (M.K.C.); (H.B.); (J.K.K.); (J.M.)
| | - Jenni K. Koskela
- Faculty of Medicine and Health Technology, Tampere University, 33014 Tampere, Finland; (M.K.C.); (H.B.); (J.K.K.); (J.M.)
- Department of Internal Medicine, Tampere University Hospital, 33520 Tampere, Finland;
| | - Onni Niemelä
- Department of Laboratory Medicine and Medical Research Unit, Seinäjoki Central Hospital, 60220 Seinäjoki, Finland;
| | - Pasi I. Nevalainen
- Department of Internal Medicine, Tampere University Hospital, 33520 Tampere, Finland;
| | - Jukka Mustonen
- Faculty of Medicine and Health Technology, Tampere University, 33014 Tampere, Finland; (M.K.C.); (H.B.); (J.K.K.); (J.M.)
- Department of Internal Medicine, Tampere University Hospital, 33520 Tampere, Finland;
| | - Ilkka Pörsti
- Faculty of Medicine and Health Technology, Tampere University, 33014 Tampere, Finland; (M.K.C.); (H.B.); (J.K.K.); (J.M.)
- Department of Internal Medicine, Tampere University Hospital, 33520 Tampere, Finland;
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Beck F, Marzi I, Eisenreich A, Seemüller S, Tristram C, Reimers AK. Determination of cut-off points for the Move4 accelerometer in children aged 8-13 years. BMC Sports Sci Med Rehabil 2023; 15:163. [PMID: 38017586 PMCID: PMC10683356 DOI: 10.1186/s13102-023-00775-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 11/22/2023] [Indexed: 11/30/2023]
Abstract
BACKGROUND To assess physical activity (PA) there is a need of objective, valid and reliable measurement methods like accelerometers. Before these devices can be used for research, they need to be calibrated and validated for specific age groups as the locomotion differs between children and adults, for instance. Therefore, the aim of the present study was the calibration and validation of the Move4 accelerometer for children aged 8-13 years. METHODS 53 normal weighted children (52% boys, 48%girls) aged 8-13 years (mean age = 10.69 ± 1.46, mean BMI = 17.93 kg/m- 2, 60th percentile), wore the Move4 sensor at four different body positions (thigh, hip, wrist and the Move4ecg including heart rate measurement at the chest). They completed nine activities that considered the four activity levels (sedentary behavior (SB), light PA (LPA), moderate PA (MPA) and vigorous PA (VPA)) within a test-retest design. Intensity values were determined using the mean amplitude deviation (MAD) as well as the movement acceleration intensity (MAI) metrics. Determination of activities and energy expenditure was validated using heart rate. After that, cut-off points were determined in Matlab by using the Classification and Regression Trees (CART) method. The agreement for the cut-off points between T1 and T2 was analyzed. RESULTS MAD and MAI accelerometer values were lowest when children were lying on the floor and highest when running or doing jumping jacks. The mean correlation coefficient between acceleration values and heart rate was 0.595 (p = 0.01) for MAD metric and 0.611 (p = 0.01) for MAI metric, indicating strong correlations. Further, the MAD cut-off points for SB-LPA are 52.9 mg (hip), 62.4 mg (thigh), 86.4 mg (wrist) and 45.9 mg (chest), for LPA-MPA they are 173.3 mg (hip), 260.7 mg (thigh), 194.4 mg (wrist) and 155.7 mg (chest) and for MPA-VPA the cut-off points are 543.6 mg (hip), 674.5 mg (thigh), 623.4 mg (wrist) and 545.5 mg (chest). Test-retest comparison indicated good values (mean differences = 9.8%). CONCLUSION This is the first study investigating cut-off points for children for four different sensor positions using raw accelerometer metrics (MAD/MAI). Sensitivity and specificity revealed good values for all positions. Nevertheless, depending on the sensor position, metric values differ according to the different involvement of the body in various activities. Thus, the sensor position should be carefully chosen depending on the research question of the study.
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Affiliation(s)
- Franziska Beck
- Department of Sport Science and Sport, Friedrich-Alexander-Universität Erlangen-Nürnberg, Gebbertstraße 123b, 91058, Erlangen, Germany.
| | - Isabel Marzi
- Department of Sport Science and Sport, Friedrich-Alexander-Universität Erlangen-Nürnberg, Gebbertstraße 123b, 91058, Erlangen, Germany
| | | | - Selina Seemüller
- Department of Sport Science and Sport, Friedrich-Alexander-Universität Erlangen-Nürnberg, Gebbertstraße 123b, 91058, Erlangen, Germany
| | - Clara Tristram
- Department of Sport Science and Sport, Friedrich-Alexander-Universität Erlangen-Nürnberg, Gebbertstraße 123b, 91058, Erlangen, Germany
| | - Anne K Reimers
- Department of Sport Science and Sport, Friedrich-Alexander-Universität Erlangen-Nürnberg, Gebbertstraße 123b, 91058, Erlangen, Germany
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Lenasi H, Rihar E, Filipič J, Klemenc M, Fister P. The Effect of Caffeine on Heart Rate Variability in Newborns: A Pilot Study. Life (Basel) 2023; 13:1459. [PMID: 37511834 PMCID: PMC10381585 DOI: 10.3390/life13071459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/17/2023] [Accepted: 06/23/2023] [Indexed: 07/30/2023] Open
Abstract
Neonatal apnoea can be treated with caffeine, which affects the central nervous and cardiovascular systems. Heart rate variability (HRV) reflects the activity of the autonomic nervous system (ANS) and might be used as a measure of ANS maturation in newborns. We aimed to establish the effect of caffeine on HRV in newborns and investigated the potential correlation between HRV and postmenstrual age (PMA). In 25 haemodynamically stable newborns hospitalized due to apnoea and treated with caffeine (2.5 mg/kg), we assessed breathing frequency, arterial oxygen saturation, body temperature, and the heart rate while they were sleeping. We assessed HRV by spectral analysis using fast Fourier transformation. The same protocol was reapplied 100 h after caffeine withdrawal to assess the control parameters. Caffeine increased breathing frequency (p = 0.023) but did not affect any other parameter assessed including HRV. We established a positive correlation between postmenstrual age and HRV during treatment with caffeine as well as after caffeine had been withdrawn (total power: p = 0.044; low-frequency band: p = 0.039). Apparently, the maintenance dose of caffeine is too low to affect the heart rate and HRV. A positive correlation between PMA and HRV might reflect maturation of the ANS, irrespective of caffeine treatment.
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Affiliation(s)
- Helena Lenasi
- Institute of Physiology, Medical Faculty, University of Ljubljana, Zaloška cesta 4, 1000 Ljubljana, Slovenia
| | - Eva Rihar
- Children's Hospital, University Medical Centre Ljubljana, Zaloška cesta 2, 1000 Ljubljana, Slovenia
| | - Jerneja Filipič
- Children's Hospital, University Medical Centre Ljubljana, Zaloška cesta 2, 1000 Ljubljana, Slovenia
| | - Matjaž Klemenc
- Department of Cardiology, General Hospital Dr. Franc Derganc, Ulica Padlih Borcev 13A, 5290 Šempeter pri Gorici, Slovenia
| | - Petja Fister
- Children's Hospital, Pediatric Intensive Care Unit, University Medical Centre Ljubljana, Bohoričeva ulica 20, 1000 Ljubljana, Slovenia
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Taurio J, Hautaniemi EJ, Koskela JK, Eräranta A, Hämäläinen M, Tikkakoski A, Kettunen JA, Kähönen M, Niemelä O, Moilanen E, Mustonen J, Pörsti I. The characteristics of elevated blood pressure in abdominal obesity correspond to primary hypertension: a cross-sectional study. BMC Cardiovasc Disord 2023; 23:161. [PMID: 36973671 PMCID: PMC10045516 DOI: 10.1186/s12872-023-03150-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 02/27/2023] [Indexed: 03/29/2023] Open
Abstract
BACKGROUND Obesity-related hypertension and the associated metabolic abnormalities are considered as a distinct hypertensive phenotype. Here we examined how abdominal fat content, as judged by waist:height ratio, influenced blood pressure and hemodynamic profile in normotensive subjects and never-treated hypertensive patients. METHODS The 541 participants (20-72 years) underwent physical examination and laboratory analyses and were divided into age and sex-adjusted quartiles of waist:height ratio. Supine hemodynamics were recorded using whole-body impedance cardiography, combined with analyses of radial tonometric pulse wave form and heart rate variability. RESULTS Mean waist:height ratios in the quartiles were 0.46, 0.51, 0.55 and 0.62. Radial and aortic blood pressure, systemic vascular resistance, pulse wave velocity, markers of glucose and lipid metabolism, leptin levels and C-reactive protein were higher in quartile 4 when compared with quartiles 1 and 2 (p < 0.05 for all). Cardiac index was lower in quartile 4 versus quartile 1, while no differences were seen in heart rate variability, augmentation index, plasma renin activity, and aldosterone concentration between the quartiles. Linear regression analyses showed independent associations of abdominal obesity with higher aortic systolic and diastolic blood pressure, systemic vascular resistance, and pulse wave velocity (p < 0.05 for waist:height ratio in all regression models). CONCLUSION Higher waist:height ratio was associated with elevated blood pressure, systemic vascular resistance, and arterial stiffness, but not with alterations in cardiac sympathovagal modulation or activation of the circulating renin-angiotensin-aldosterone system. Although obesity-related elevation of blood pressure has distinct phenotypic features, these results suggest that its main characteristics correspond those of primary hypertension. TRIAL REGISTRATION ClinicalTrails.gov NCT01742702 (date of registration 5th December 2012).
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Affiliation(s)
- Jyrki Taurio
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Elina J Hautaniemi
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
| | - Jenni K Koskela
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
| | - Arttu Eräranta
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
| | - Mari Hämäläinen
- The Immunopharmacology Research group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Antti Tikkakoski
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Jarkko A Kettunen
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
| | - Mika Kähönen
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Onni Niemelä
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
- Laboratory and Medical Research Unit, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Eeva Moilanen
- The Immunopharmacology Research group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Jukka Mustonen
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
| | - Ilkka Pörsti
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland.
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland.
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10
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Li C, Zhang W, Yang Y, Zhang Q, Li K, Chen M, Wang L, Xia K. Prediction of SYNTAX score II improvement by adding temporal heart rate changes between discharge and first outpatient visit in patients with acute myocardial infarction. BMC Cardiovasc Disord 2022; 22:470. [PMID: 36344932 PMCID: PMC9641850 DOI: 10.1186/s12872-022-02929-7] [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: 05/18/2022] [Accepted: 10/31/2022] [Indexed: 11/10/2022] Open
Abstract
Background The prognostic ability of the temporal changes in resting heart rate (ΔHR) in patients with acute myocardial infarction (AMI) for cardiovascular (CV) mortality and clinical outcomes is rarely examined. This study investigated the predictive value of ΔHR using models with SYNTAX score II (SxS-II) for the long-term prognosis of patients with AMI. Methods Six hundred five AMI patients with vital signs recorded at the first outpatient visit (2–4 weeks after discharge) were retrospectively recruited into this study. The changes between discharge and outpatient resting heart rate (D-O ΔHR) were calculated by subtracting the HR at the first post-discharge visit from the value recorded at discharge. The major adverse cardiovascular and cerebrovascular events (MACCE) include cardiovascular death, recurrent myocardial infarction, revascularization, and nonfatal stroke. The predictive values and reclassification ability of the different models were assessed using a likelihood ratio test, Akaike’s information criteria (AIC), receiver operating characteristic (ROC) curves, net reclassification improvement (NRI), and integrated discrimination improvement (IDI). Results During the follow-up period, a drop-in resting heart rate (RHR) from discharge to first outpatient visit was independently associated with less risk of CV mortality [D-O ΔHR: hazards ratio (HR) = 0.97, 95% CI = 0.96–0.99, P < 0.001] and MACCE (HR = 0.98, 95% CI = 0.97–0.99, p = 0.001). The likelihood test indicated that the combined model of SxS-II and D-O ΔHR yielded the lowest AIC for CV mortality and MACCE (P < 0.001). Moreover, D-O ΔHR alone significantly improved the net reclassification and integrated discrimination of the models containing SxS-II for CV mortality and MACCE (CV mortality: NRI = 0.5600, P = 0.001 and IDI = 0.0759, P = 0.03; MACCE: NRI = 0.2231, P < 0.05 and IDI = 0.0107, P < 0.05). Conclusions The change in D-O ΔHR was an independent predictor of long-term CV mortality and MACCE. The D-O ΔHR combined with SxS-II could significantly improve its predictive probability.
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11
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Koskela JK, Tahvanainen A, Tikkakoski AJ, Kangas P, Uitto M, Viik J, Kähönen M, Mustonen J, Pörsti I. Resting heart rate predicts cardiac autonomic modulation during passive head-up tilt in subjects without cardiovascular diseases. SCAND CARDIOVASC J 2022; 56:138-147. [PMID: 35652524 DOI: 10.1080/14017431.2022.2079713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Background Resting heart rate (HR) and its variability (HRV) reflects the cardiac sympathovagal balance that is stimulated by head-up tilting. HRV is influenced by the level of HR, but how much HRV offers additional information about cardiac autonomic tone than HR alone remains unresolved. We examined the relation of resting HR with HRV during head-up tilt. Methods. Hemodynamics of 569 subjects without known cardiovascular diseases and medications with direct cardiovascular effects were recorded using whole-body impedance cardiography, radial pulse wave analysis, and electrocardiography-based HRV analysis during passive head-up tilt. Results. Higher low frequency to the high-frequency ratio (LF/HF) of HRV (reflecting sympathovagal balance) was associated with higher HR in supine (p < .05, both linear regression analysis and variance analysis comparing HR tertiles) and upright postures (p < .001, linear regression analysis). The association of HR with HRV during tilt-testing remained significant when the HR dependence of HRV was mathematically weakened by dividing the HRV power spectra with the fourth power of the average RR-interval. Conclusion. Higher resting HR is related to higher LF/HF both supine and upright, reflecting elevated sympathetic influence on cardiac autonomic modulation. Lower resting HR is associated with lower resting LF/HF, while the differences in LF/HF between the HR tertiles were minor during head-up tilt, suggesting a greater change in cardiac sympathovagal balance in response to upright posture in those with lowest resting HR. Altogether, resting HR well predicts HRV levels during head-up tilt.Trial registration: Clinicaltrialsregister.eu 2006-002065-39, first registered 5 May 2006. ClinicalTrials.gov NCT01742702, first registered 5 December 2012.
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Affiliation(s)
- Jenni K Koskela
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Anna Tahvanainen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Heart Hospital, Tampere University Hospital, Tampere, Finland
| | - Antti J Tikkakoski
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Clinical Physiology and Nuclear Medicine, Tampere University Hospital, Tampere, Finland
| | - Pauliina Kangas
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Marko Uitto
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Jari Viik
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Mika Kähönen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Clinical Physiology and Nuclear Medicine, Tampere University Hospital, Tampere, Finland
| | - Jukka Mustonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka Pörsti
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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12
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Kähönen E, Aatola H, Lehtimäki T, Haarala A, Sipilä K, Juonala M, Raitakari OT, Kähönen M, Hutri-Kähönen N. Influence of early life risk factors and lifestyle on systemic vascular resistance in later adulthood: the cardiovascular risk in young Finns study. Blood Press 2021; 30:367-375. [PMID: 34605743 DOI: 10.1080/08037051.2021.1980372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
PURPOSE There are limited data available concerning the effects of lifetime risk factors and lifestyle on systemic hemodynamics, especially on systemic vascular resistance. The purpose of the study was to evaluate how lifetime cardiovascular risk factors (body mass index (BMI), high-density lipoprotein, low-density lipoprotein, triglycerides, systolic blood pressure, blood glucose) and lifestyle factors (vegetable consumption, fruit consumption, smoking and physical activity) predict systemic vascular resistance index (SVRI) and cardiac index (CI) assessed in adulthood. MATERIALS AND METHODS Our study cohort comprised 1635 subjects of the Cardiovascular Risk in Young Finns Study followed up for 27 years since baseline (1980; aged 3-18 years, females 54.3%) who had risk factor and lifestyle data available since childhood. Systemic hemodynamics were measured in 2007 (aged 30-45 years) by whole-body impedance cardiography. RESULTS In the multivariable regression analysis, independent predictors of the adulthood SVRI were childhood BMI, blood glucose, vegetable consumption, smoking, and physical activity (p ≤ .046 for all). Vegetable consumption, smoking, and physical activity remained significant when adjusted for corresponding adult data (p ≤ .036 for all). For the CI, independent predictors in childhood were BMI, systolic blood pressure, vegetable consumption, and physical activity (p ≤ .044 for all), and the findings remained significant after adjusting for corresponding adult data (p ≤ .046 for all). The number of childhood and adulthood risk factors and unfavourable lifestyle factors was directly associated with the SVRI (p < .001) in adulthood. A reduction in the number of risk factors and unfavourable lifestyle factors or a favourable change in BMI status from childhood to adulthood was associated with a lower SVRI in adulthood (p < .001). CONCLUSION Childhood BMI, blood glucose, vegetable consumption, smoking and physical activity independently predict systemic vascular resistance in adulthood. A favourable change in the number of risk factors or BMI from childhood to adulthood was associated with lower vascular resistance in adulthood.
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Affiliation(s)
- Emilia Kähönen
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland.,Faculty of Medicine, University of Latvia, Riga, Latvia
| | - Heikki Aatola
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Terho Lehtimäki
- Fimlab Laboratories, Tampere, Finland.,Department of Clinical Chemistry, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland.,Finnish Cardiovascular Research Center-Tampere, Tampere University, Tampere, Finland
| | - Atte Haarala
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Kalle Sipilä
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Markus Juonala
- Department of Medicine, University of Turku, Turku, Finland.,Division of Medicine, Turku University Hospital, Turku, Finland
| | - Olli T Raitakari
- Centre for Population Health Research, University of Turku, Turku, Finland.,Centre for Population Health Research, Turku University Hospital, Turku, Finland.,Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland.,Department of Clinical Physiology and Nuclear Medicine, Turku University Hospital, Turku, Finland
| | - Mika Kähönen
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland.,Finnish Cardiovascular Research Center-Tampere, Tampere University, Tampere, Finland
| | - Nina Hutri-Kähönen
- Tampere Centre for Skills Training and Simulation, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
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13
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Koskela JK, Vääräniemi K, Tahvanainen AMH, Mustonen J, Mäkelä S, Tikkakoski AJ, Pörsti I. Disparate Information Provided by Pulse Wave Velocity versus Other Measures of Aortic Compliance in End-Stage Renal Disease. Nephron Clin Pract 2021; 146:11-21. [PMID: 34515178 DOI: 10.1159/000518174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 06/15/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Unfavorable changes in cardiac and arterial function are related to poor prognosis in chronic kidney disease (CKD). We compared hemodynamic profiles between subjects with end-stage renal disease and 2 control groups with corresponding pulse wave velocities (PWVs). METHODS Noninvasive hemodynamics were recorded during passive head-up tilt in CKD stage 5 patients (n = 35), patients with primary hypertension (n = 35, n = 30 with antihypertensive medications), and subjects without cardiovascular or renal diseases and cardiovascular medications (n = 70). The groups were selected to have corresponding age, sex, body mass index, and PWV. Hemodynamic data were captured using whole-body impedance cardiography and radial tonometric pulse wave analysis. RESULTS Supine blood pressure did not differ between the groups, but upright diastolic blood pressure was lower in CKD patients than in the 2 control groups (p ≤ 0.001 for both, RANOVA). Despite similar PWV, supine aortic pulse pressure was higher in CKD patients versus nonmedicated subjects (p = 0.029). Two additional measures indicated reduced aortic compliance in CKD patients versus both control groups: lower ratio of stroke index to aortic pulse pressure (p ≤ 0.023) and higher aortic characteristic impedance (p ≤ 0.003). The subendocardial viability ratio was lower in the CKD group than in both control groups (p ≤ 0.039). CONCLUSION In the absence of differences in PWV, higher aortic pulse pressure and characteristic impedance, and lower ratio of stroke index to aortic pulse pressure, suggest reduced aortic compliance and impaired left ventricular function in CKD patients. A lower subendocardial viability ratio predisposes the CKD patients to impaired cardiac oxygen supply versus hypertensive patients and nonmedicated controls.
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Affiliation(s)
- Jenni Kaarina Koskela
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Kati Vääräniemi
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Central Hospital of Central Finland, Jyväskylä, Finland
| | - Anna Mari Helena Tahvanainen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Heart Hospital, Tampere University Hospital, Tampere, Finland
| | - Jukka Mustonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Satu Mäkelä
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Antti Johannes Tikkakoski
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Clinical Physiology and Nuclear Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka Pörsti
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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14
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Individual changes of central blood pressure in response to upright posture: different hemodynamic phenotypes. J Hypertens 2021; 39:2403-2412. [PMID: 34269331 DOI: 10.1097/hjh.0000000000002965] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Most studies about upright regulation of blood pressure have focused on orthostatic hypotension despite the diverse hemodynamic changes induced by orthostatic challenge. We investigated the effect of passive head-up tilt on aortic blood pressure. METHODS Noninvasive peripheral and central hemodynamics in 613 volunteers without cardiovascular morbidities or medications were examined using pulse wave analysis, whole-body impedance cardiography and heart rate variability analysis. RESULTS In all participants, mean aortic SBP decreased by -4 (-5 to -3) mmHg [mean (95% confidence intervals)] and DBP increased by 6 (5--6) mmHg in response to upright posture. When divided into tertiles according to the supine-to-upright change in aortic SBP, two tertiles presented with a decrease [-15 (-14 to -16) and -4 (-3 to -4) mmHg, respectively] whereas one tertile presented with an increase [+7 (7-- 8) mmHg] in aortic SBP. There were no major differences in demographic characteristics between the tertiles. In regression analysis, the strongest explanatory factors for upright changes in aortic SBP were the supine values of, and upright changes in systemic vascular resistance and cardiac output, and supine aortic SBP. CONCLUSION In participants without cardiovascular disease, the changes in central SBP during orthostatic challenge are not uniform. One-third presented with higher upright than supine aortic SBP with underlying differences in the regulation of systemic vascular resistance and cardiac output. These findings emphasize that resting blood pressure measurements give only limited information about the blood pressure status.
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15
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Hamid H, Kurra V, Choudhary MK, Bouquin H, Niemelä O, Kähönen MAP, Mustonen JT, Pörsti IH, Koskela JK. Plasma uric acid is related to large arterial stiffness but not to other hemodynamic variables: a study in 606 normotensive and never-medicated hypertensive subjects. BMC Cardiovasc Disord 2021; 21:257. [PMID: 34039285 PMCID: PMC8152327 DOI: 10.1186/s12872-021-02072-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 05/19/2021] [Indexed: 11/30/2022] Open
Abstract
Background Elevated level of plasma uric acid (PUA) has been associated with cardiovascular disease, but whether uric acid is an independent risk factor or merely a marker remains controversial. Methods We investigated in a cross-sectional setting the association of PUA with hemodynamics in 606 normotensive and never-medicated hypertensive subjects (295 men, 311 women, age range 19–73 years) without cardiovascular disease or gout. In all except 15 individuals, PUA was within the normal range. Supine hemodynamics were recorded using whole-body impedance cardiography and radial tonometric pulse wave analysis. Results The mean concentrations of PUA in age, sex and body mass index adjusted quartiles were 234, 278, 314, and 373 µmol/l, respectively. The highest PUA quartile presented with higher aortic to popliteal pulse wave velocity (PWV) than the lowest quartile (8.7 vs. 8.2 m/s, p = 0.026) in analyses additionally adjusted for plasma concentrations of C-reactive protein, low density lipoprotein cholesterol, triglycerides, and mean aortic blood pressure. No differences in radial and aortic blood pressure, wave reflections, heart rate, cardiac output, and systemic vascular resistance were observed between the quartiles. In linear regression analysis, PUA was an independent explanatory factor for PWV (β = 0.168, p < 0.001, R2 of the model 0.591), but not for systolic or diastolic blood pressure. When the regression analysis was performed separately for men and women, PUA was an independent predictor of PWV in both sexes. Conclusions PUA concentration was independently and directly associated with large arterial stiffness in individuals without cardiovascular disease and PUA levels predominantly within the normal range. Trial registration ClinicalTrials.gov NCT01742702.
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Affiliation(s)
- Humam Hamid
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
| | - Venla Kurra
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
| | - Manoj Kumar Choudhary
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
| | - Heidi Bouquin
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland
| | - Onni Niemelä
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland.,Laboratory and Medical Research Unit, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Mika A P Kähönen
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Jukka T Mustonen
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka H Pörsti
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland. .,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland.
| | - Jenni K Koskela
- Faculty of Medicine and Health Technology, Tampere University, FI-33014, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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16
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Kawano H, Asaka M, Yamamoto K, Gando Y, Konishi M, Sakamoto S, Miyachi M, Higuchi M. Greater arterial wall viscosity in endurance-trained men. Eur J Appl Physiol 2021; 121:2219-2228. [PMID: 33890159 DOI: 10.1007/s00421-021-04686-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 04/08/2021] [Indexed: 11/28/2022]
Abstract
PURPOSE The age-associated increase in arterial wall viscosity (AWV) is attenuated by high cardiorespiratory fitness level. However, AWV in endurance-trained athletes have not been determined. We designed a cross sectional study to compare central AWV and compliance between endurance-trained young athletes and age-matched control men. METHODS Twenty-one endurance-trained men (age 20.7 ± 0.3 years) and 20 age-matched healthy control men (age 21.6 ± 0.4 years) were studied. The common carotid artery was measured noninvasively by tonometry and automatic tracking of B-mode images to obtain instantaneous pressure and diameter hysteresis loops, and we calculated the dynamic carotid arterial compliance, static (effective and isobaric) compliance, and viscosity index. RESULTS The AWV index in the endurance-trained men was larger than the control peers (2285 ± 181 vs. 1429 ± 124 mmHg·s/mm: P < 0.001). In addition, dynamic and static compliance were not statistically different between both groups. CONCLUSION The present study indicated that the central AWV in endurance-trained athletes was greater than age-matched healthy control men. We believe that the AWV, as well as arterial compliance, is an important element for assessing vascular adaptation to endurance training.
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Affiliation(s)
- Hiroshi Kawano
- Faculty of Letters, Kokushikan University, 4-28-1 Setagaya, Setagaya-ku, Tokyo, 154-8515, Japan. .,Faculty of Sport Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa, Saitama, 359-1192, Japan.
| | - Meiko Asaka
- Department of Life Sciences, Graduate School of Arts and Sciences, University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8902, Japan
| | - Kenta Yamamoto
- Faculty of Pharmaceutical Sciences, Teikyo Heisei University, 4-21-2 Nakano, Nakano-ku, Tokyo, 164-8530, Japan
| | - Yuko Gando
- Department of Physical Activity Research, National Institutes of Biomedical Innovation, Health and Nutrition, 1-23-1 Toyama, Shinjuku, Tokyo, 162-8636, Japan
| | - Masayuki Konishi
- Faculty of Sport Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa, Saitama, 359-1192, Japan.,Faculty of Health Promotional Sciences, Tokoha University, 1230 Miyakoda-cho, Kita-ku, Hamamatsu, Shizuoka, 431-2102, Japan
| | - Shizuo Sakamoto
- Faculty of Sport Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa, Saitama, 359-1192, Japan
| | - Motohiko Miyachi
- Department of Physical Activity Research, National Institutes of Biomedical Innovation, Health and Nutrition, 1-23-1 Toyama, Shinjuku, Tokyo, 162-8636, Japan
| | - Mitsuru Higuchi
- Faculty of Sport Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa, Saitama, 359-1192, Japan
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17
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Hohneck AL, Fries P, Stroeder J, Schneider G, Schirmer SH, Reil JC, Böhm M, Laufs U, Custodis F. Effects of selective heart rate reduction with ivabradine on LV function and central hemodynamics in patients with chronic coronary syndrome. IJC HEART & VASCULATURE 2021; 34:100757. [PMID: 33851006 PMCID: PMC8024658 DOI: 10.1016/j.ijcha.2021.100757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/28/2021] [Accepted: 03/03/2021] [Indexed: 11/30/2022]
Abstract
Objectives We assessed left ventricular (LV) function and central hemodynamic effects in patients with a heart rate (HR) at rest of ≥70 beats per minute (bpm) and chronic coronary syndrome (CCS) after long-term treatment with ivabradine compared to placebo by cardiac magnetic resonance (CMR) imaging. Methods and results In a randomized, double-blinded, prospective cross-over design, 23 patients (18 male, 5 female) were treated with ivabradine (7.5 mg bid) or placebo for 6 months. CMR imaging was performed at baseline and after 6 and 12 months to determine LV functional parameters.Mean resting HR on treatment with ivabradine was 58 ± 8.2 bpm and 70.2 ± 8.3 bpm during placebo (p < 0.0001).There was no difference in systolic LV ejection fraction (ivabradine 57.4 ± 11.2% vs placebo 53.0 ± 10.9%, p = 0.18), indexed end-diastolic (EDVi) or end-systolic volumes (ESVi). Indexed stroke volume (SVi) (ml/m2) remained unchanged after treatment with ivabradine. Volume time curve parameters reflecting systolic LV function (peak ejection rate and time) were unaffected by ivabradine, while both peak filling rate (PFR) and PFR/EDV were significantly increased. Mean aortic velocity (cm/s) was significantly reduced during treatment with ivabradine (ivabradine 6.7 ± 2.7 vs placebo 9.0 ± 3.4, p = 0.01). Aortic flow parameters were correlated to parameters of vascular stiffness. The strongest correlation was revealed for mean aortic velocity with aortic distensibility (AD) (r = -0.86 [-0.90 to -0.85], p < 0.0001). Conclusion Long-term reduction of HR with ivabradine in patients with CCS improved diastolic function and reduced mean aortic flow velocity.
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Key Words
- ACS, acute coronary syndrome
- AD, aortic distensibility
- Arterial stiffness
- CAD, coronary artery disease
- CCS, chronic coronary syndrome
- CMR, cardiac magnetic resonance
- CV, cardiovascular
- Chronic coronary syndrome
- EDV, end-diastolic
- EF, ejection fraction
- ESC, European Society of Cardiology
- ESV, end-systolic
- FMD, flow mediated dilation
- HFpEF, heart failure with preserved ejection fraction
- HFrEF, heart failure with reduced ejection fraction
- HR, heart rate
- HRR, heart rate reduction
- Heart rate reduction
- Hemodynamics
- LV, left ventricular
- MRI, magnetic resonance imaging
- PER, peak ejection rate
- PET, peak ejection time
- PFR, peak filling rate
- PFT, peak filling time
- PWV, pulse wave velocity
- RHR, resting heart rate
- SV, stroke volume
- VTC, volume-time curve
- bpm, beats per minute
- cf, carotid-femoral
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Affiliation(s)
- Anna Lena Hohneck
- First Department of Medicine, University Medical Centre Mannheim (UMM), Faculty of Medicine Mannheim, University of Heidelberg and DZHK (German Centre for Cardiovascular Research) Partner Site Heidelberg/Mannheim, Mannheim, Germany
| | - Peter Fries
- Clinic for Diagnostic and Interventional Radiology, Saarland University Medical Center, Saarland University, Homburg/Saar, Germany
| | - Jonas Stroeder
- Clinic for Diagnostic and Interventional Radiology, Saarland University Medical Center, Saarland University, Homburg/Saar, Germany
| | - Günther Schneider
- Clinic for Diagnostic and Interventional Radiology, Saarland University Medical Center, Saarland University, Homburg/Saar, Germany
| | | | - Jan-Christian Reil
- Second Department of Medicine, University Hospital Schleswig-Holstein Location Lübeck, Lübeck, Germany
| | - Michael Böhm
- Department of Internal Medicine III, Saarland University Medical Center, Saarland University, Homburg/Saar, Germany
| | - Ulrich Laufs
- Clinic and Polyclinic for Cardiology, University of Leipzig, Leipzig, Germany
| | - Florian Custodis
- Department of Internal Medicine III, Saarland University Medical Center, Saarland University, Homburg/Saar, Germany.,Department of Internal Medicine II, Klinikum Saarbrücken, Saarbrücken, Germany
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18
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The Influence of Resting Heart Rate on Central Pulse Pressure is Age-Dependent. High Blood Press Cardiovasc Prev 2021; 28:27-34. [PMID: 33453049 DOI: 10.1007/s40292-020-00432-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 12/28/2020] [Indexed: 10/22/2022] Open
Abstract
INTRODUCTION Low resting heart rate (RHR) increases augmentation pressure (AP) and central pulse pressure (central PP) and decreases peripheral pressure wave amplification. Given that the contribution of AP to central PP increases with age we hypothesized that the influence of RHR on AP, central PP and peripheral amplification varies with age. AIM To evaluate the interaction between age and RHR on the forward and backward components of central PP. METHODS A cohort of 1249 ambulatory hypertensive patients with good quality radial wave recordings was stratified into age groups and quartiles of RHR (< 61, 61-68, 69-76 and > 76 bpm). Central aortic pressure was estimated from radial applanation tonometry. RESULTS Forward wave (FW) and AP showed opposite changes until midlife, mutually canceling their effect on central PP, whereas both components of central PP increased in parallel after the fifth decade. The initial fall in FW was expressed in the brachial artery as a corresponding decrease in PP and in peripheral amplification. After midlife there was a further decrease in peripheral amplification at the expense of the rise in central PP. A lower RHR exaggerated the age-related increase in left ventricular ejection time (LVET), AP, central PP, and the decrease in peripheral amplification (P < 0.001, for all the interactions between decades and quartiles of RHR). Multivariable regression analyses (n = 1249) confirmed a significant interaction between age and RHR on central PP (P < 0.001), AP (P < 0.001), LVET (P < 0.001), AIx (P < 0.035), and peripheral amplification (P < 0.001). Multivariable regression analyses stratified by age groups (< 30, 30-59 and ≥ 60 years) showed an increasing strength in the relationship of RHR with AP, independently of sex, mean arterial pressure, pulse wave velocity and beta-blockers use. The average increase in AP for a decrease in 10 bpm was 1.4 mmHg before age < 30 years; 2.5 mmHg between age 30-59 years; and 5.4 mmHg at 60 years and older. CONCLUSIONS A lower heart rate exaggerated AP and central PP in an age dependent fashion, being the effect particularly relevant in older patients.
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Choudhary MK, Värri E, Matikainen N, Koskela J, Tikkakoski AJ, Kähönen M, Niemelä O, Mustonen J, Nevalainen PI, Pörsti I. Primary aldosteronism: Higher volume load, cardiac output and arterial stiffness than in essential hypertension. J Intern Med 2021; 289:29-41. [PMID: 32463949 DOI: 10.1111/joim.13115] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 05/05/2020] [Indexed: 01/17/2023]
Abstract
BACKGROUND The diagnostics of primary aldosteronism (PA) are usually carried out in patients taking antihypertensive medications. We compared haemodynamics between medicated PA, medicated essential hypertension (EH), never-medicated EH and normotensive controls (n = 130 in all groups). METHODS The hypertensive groups were matched for age (53 years), sex (84 male/46 female) and body mass index (BMI) (30 kg m-2 ); normotensive controls had similar sex distribution (age 48 years, BMI 27 kg m-2 ). Haemodynamics were recorded using whole-body impedance cardiography and radial pulse wave analysis, and the results were adjusted as appropriate. Radial blood pressure recordings were calibrated by brachial blood pressure measurements from the contralateral arm. RESULTS Radial and aortic systolic and diastolic blood pressure was similar in PA and never-medicated EH, and higher than in medicated EH and normotensive controls (P ≤ 0.001 for all comparisons). Extracellular water balance was ~ 4% higher in PA than in all other groups (P < 0.05 for all), whilst cardiac output was ~ 8% higher in PA than in medicated EH (P = 0.012). Systemic vascular resistance and augmentation index were similarly increased in PA and both EH groups when compared with controls. Pulse wave velocity was higher in PA and never-medicated EH than in medicated EH and normotensive controls (P ≤ 0.033 for all comparisons). CONCLUSIONS Medicated PA patients presented with corresponding systemic vascular resistance and wave reflection, but higher extracellular water volume, cardiac output and arterial stiffness than medicated EH patients. Whether the systematic evaluation of these features would benefit the clinical diagnostics of PA remains to be studied in future.
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Affiliation(s)
- M K Choudhary
- From the, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - E Värri
- From the, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - N Matikainen
- Endocrinology, Helsinki University Hospital and Research Programs Unit, Clinical and Molecular Medicine, University of Helsinki, Helsinki, Finland
| | - J Koskela
- From the, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - A J Tikkakoski
- From the, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - M Kähönen
- From the, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - O Niemelä
- From the, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Laboratory and Medical Research Unit, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - J Mustonen
- From the, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - P I Nevalainen
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - I Pörsti
- From the, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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20
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Kokko E, Nevalainen PI, Choudhary MK, Koskela J, Tikkakoski A, Huhtala H, Niemelä O, Viukari M, Mustonen J, Matikainen N, Pörsti I. Aldosterone-to-renin ratio is related to arterial stiffness when the screening criteria of primary aldosteronism are not met. Sci Rep 2020; 10:19804. [PMID: 33188272 PMCID: PMC7666146 DOI: 10.1038/s41598-020-76718-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 11/02/2020] [Indexed: 11/28/2022] Open
Abstract
Aldosterone-to-renin ratio (ARR) is a screening tool for primary aldosteronism (PA), but the significance of ARR when the PA criteria are not met remains largely unknown. In this cross-sectional study we investigated the association of ARR with haemodynamic variables in 545 normotensive and never-medicated hypertensive subjects (267 men, 278 women, age range 19-72 years) without suspicion of PA. Supine haemodynamic data was recorded using whole-body impedance cardiography and radial tonometric pulse wave analysis. In sex-adjusted quartiles of ARR, determined as serum aldosterone to plasma renin activity ratio, the mean values were 282, 504, 744 and 1467 pmol/µg of angiotensin I/h, respectively. The only difference in haemodynamic variables between the ARR quartiles was higher pulse wave velocity (PWV) in the highest quartile versus other quartiles (p = 0.004), while no differences in blood pressure (BP), heart rate, wave reflections, cardiac output or systemic vascular resistance were observed between the quartiles. In linear regression analysis with stepwise elimination, ARR was an independent explanatory factor for PWV (β = 0.146, p < 0.001, R2 of the model 0.634). In conclusion, ARR was directly and independently associated with large arterial stiffness in individuals without clinical suspicion of PA. Therefore, ARR could serve as a clinical marker of cardiovascular risk.Trial registration: ClinicalTrails.gov: NCT01742702.
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Affiliation(s)
- Eeva Kokko
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Pasi I Nevalainen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | | | - Jenni Koskela
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Antti Tikkakoski
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Heini Huhtala
- Faculty of Social Sciences, Tampere University, Tampere, Finland
| | - Onni Niemelä
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Clinical Laboratory and Medical Research Unit, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Marianna Viukari
- Endocrinology, Helsinki University Hospital and Research Programs Unit, Clinical and Molecular Medicine, University of Helsinki, Helsinki, Finland
| | - Jukka Mustonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Niina Matikainen
- Endocrinology, Helsinki University Hospital and Research Programs Unit, Clinical and Molecular Medicine, University of Helsinki, Helsinki, Finland
| | - Ilkka Pörsti
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland.
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21
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Kähönen E, Lyytikäinen LP, Aatola H, Koivistoinen T, Haarala A, Sipilä K, Juonala M, Lehtimäki T, Raitakari OT, Kähönen M, Hutri-Kähönen N. Systemic vascular resistance predicts the development of hypertension: the cardiovascular risk in young Finns study. Blood Press 2020; 29:362-369. [PMID: 32597238 DOI: 10.1080/08037051.2020.1783992] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
PURPOSE To study whether systemic hemodynamics, especially systemic vascular resistance, predicts the development of hypertension and improves the risk prediction of incident hypertension beyond common risk factors in the risk models in young adults. MATERIALS AND METHODS Typical risk factors for hypertension in the risk prediction models (systolic and diastolic blood pressure, parental history of hypertension, age, sex, body-mass index, smoking), laboratory values (high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, triglycerides, glucose, insulin, C-reactive protein), heart rate (HR), stroke index (SI), and systemic vascular resistance index (SVRI) calculated by whole-body impedance cardiography were evaluated in 2007 and blood pressure in 2011 in 1293 Finnish adults (aged 30-45 years; females 56%; n = 1058 normotensive in 2007). RESULTS Of hemodynamic variables, SVRI and HR evaluated in 2007 were independently associated with systolic blood pressure (p < 0.001 and p = 0.047, respectively) and SVRI with diastolic blood pressure measured in 2011 (p = 0.014), and SVRI and HR were independent predictors of incident hypertension (p < 0.001 and p = 0.024, respectively). SVRI was the most significant predictor of incident hypertension independently of other risk factors (odds ratio 2.73 per 1 standard deviation increase, 95% confidence interval 1.93-3.94, p < 0.001). The extended prediction model (including SVRI) improved the incident hypertension risk prediction beyond other risk factors, with an area under the receiver operating characteristic curve of 0.846 versus 0.817 (p = 0.042) and a continuous net reclassification improvement of 0.734 (p < 0.001). CONCLUSIONS These findings suggest that systemic vascular resistance index predicts the incidence of hypertension in young adults and that the evaluation of systemic hemodynamics could provide an additional tool for hypertension risk prediction.
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Affiliation(s)
- Emilia Kähönen
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland.,Faculty of Medicine, University of Latvia, Riga, Latvia
| | - Leo-Pekka Lyytikäinen
- Fimlab Laboratories, Tampere, Finland.,Department of Clinical Chemistry, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland.,Finnish Cardiovascular Research Center-Tampere, Tampere, Finland
| | - Heikki Aatola
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Teemu Koivistoinen
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland.,Department of Emergency Medicine, Kanta-Häme Central Hospital, Hämeenlinna, Finland
| | - Atte Haarala
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Kalle Sipilä
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Markus Juonala
- Department of Medicine, University of Turku, and the Division of Medicine, Turku University Hospital, Turku, Finland
| | - Terho Lehtimäki
- Fimlab Laboratories, Tampere, Finland.,Department of Clinical Chemistry, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland.,Finnish Cardiovascular Research Center-Tampere, Tampere, Finland
| | - Olli T Raitakari
- Centre for Population Health Research, University of Turku and Turku University Hospital, Turku, Finland.,Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland.,Department of Clinical Physiology and Nuclear Medicine, Turku University Hospital, Turku, Finland
| | - Mika Kähönen
- Department of Clinical Physiology and Nuclear Medicine, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland.,Finnish Cardiovascular Research Center-Tampere, Tampere, Finland
| | - Nina Hutri-Kähönen
- Department of Pediatrics, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
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22
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Honkonen M, Vääräniemi K, Saijonmaa O, Nyman A, Tikkakoski AJ, Koskela J, Lehtimäki T, Kähönen M, Mustonen J, Fyhrquist F, Pörsti I. Leukocyte telomere length is inversely associated with arterial wave reflection in 566 normotensive and never-treated hypertensive subjects. Aging (Albany NY) 2020; 12:12376-12392. [PMID: 32575070 PMCID: PMC7343461 DOI: 10.18632/aging.103459] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 05/27/2020] [Indexed: 04/19/2023]
Abstract
Telomeres are short segments in chromosome ends, the length of which is reduced during cell lifecycles. We examined the association of mean leukocyte telomere length (LTL) and short telomere proportion (STP) with hemodynamic variables in normotensive and never-treated hypertensive volunteers (n=566, 19-72 years). STP and mean LTL were determined using Southern blotting, and supine hemodynamics recorded using continuous tonometric pulse wave analysis and whole-body impedance cardiography. The analyses were adjusted for age, body mass index (BMI), alcohol use, smoking, plasma chemistry, and estimated glomerular filtration rate (eGFR). In univariate analyses, mean LTL and STP both correlated with age, BMI, eGFR, aortic blood pressure, augmentation index, and pulse wave velocity (p<0.05 for all). Mean LTL also correlated with systemic vascular resistance (p<0.05). In linear regression analyses of all hemodynamic variables, mean LTL was only an independent explanatory factor for augmentation index (Beta -0.006, p=0.032), while STP was not an explanatory factor for any of the hemodynamic variables, in contrast to age, BMI and several cardiovascular risk factors. To conclude, augmentation index was predominantly related with chronological aging, but also with mean LTL, suggesting that this variable of central wave reflection is a modest marker of vascular biological aging.
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Affiliation(s)
- Milja Honkonen
- Faculty of Medicine and Health Technology and Finnish Cardiovascular Research Center Tampere, Tampere University, Tampere, Finland
| | - Kati Vääräniemi
- Department of Internal Medicine, Central Hospital of Central Finland, Jyväskylä, Finland
| | - Outi Saijonmaa
- Minerva Institute for Medical Research, Biomedicum U2 Helsinki, Helsinki, Finland
| | - Anna Nyman
- Minerva Institute for Medical Research, Biomedicum U2 Helsinki, Helsinki, Finland
| | - Antti J. Tikkakoski
- Faculty of Medicine and Health Technology and Finnish Cardiovascular Research Center Tampere, Tampere University, Tampere, Finland
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Jenni Koskela
- Faculty of Medicine and Health Technology and Finnish Cardiovascular Research Center Tampere, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Terho Lehtimäki
- Faculty of Medicine and Health Technology and Finnish Cardiovascular Research Center Tampere, Tampere University, Tampere, Finland
- Department of Clinical Chemistry, Fimlab Laboratories Ltd, Tampere, Finland
| | - Mika Kähönen
- Faculty of Medicine and Health Technology and Finnish Cardiovascular Research Center Tampere, Tampere University, Tampere, Finland
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Jukka Mustonen
- Faculty of Medicine and Health Technology and Finnish Cardiovascular Research Center Tampere, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Frej Fyhrquist
- Minerva Institute for Medical Research, Biomedicum U2 Helsinki, Helsinki, Finland
| | - Ilkka Pörsti
- Faculty of Medicine and Health Technology and Finnish Cardiovascular Research Center Tampere, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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23
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Changes in hemodynamics associated with metabolic syndrome are more pronounced in women than in men. Sci Rep 2019; 9:18377. [PMID: 31804574 PMCID: PMC6895092 DOI: 10.1038/s41598-019-54926-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 11/18/2019] [Indexed: 01/09/2023] Open
Abstract
The increase in cardiovascular risk associated with metabolic syndrome (MS) seems higher in women than in men. We examined hemodynamics during head-up tilt in 252 men and 250 women without atherosclerosis, diabetes, or antihypertensive medication, mean age 48 years, using whole-body impedance cardiography and radial pulse wave analysis. MS was defined according to Alberti et al. 2009. Men and women with MS presented with corresponding elevations of systolic and diastolic blood pressure (10-14%, p ≤ 0.001) versus controls. Supine pulse wave velocity (16-17%, p < 0.001) and systemic vascular resistance (7-9%, p ≤ 0.026), and upright cardiac output (6-11%, p ≤ 0.008) were higher in both MS groups than controls. Elevation of supine aortic characteristic impedance was higher in women than in men with MS (16% vs. 8%, p = 0.026), and in contrast to men, no upright impedance reduction was observed in women. When upright, women but not men with MS showed faster return of reflected pressure wave (p = 0.036), and smaller decrease in left cardiac work (p = 0.035) versus controls. The faster upright return of reflected pressure, lower upright decrease in left cardiac work, and higher elevation of aortic characteristic impedance may contribute to the greater increase in MS-related cardiovascular risk in women than in men.
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24
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Oinonen L, Koskela J, Eräranta A, Tikkakoski A, Kähönen M, Niemelä O, Mustonen J, Pörsti I. Plasma total calcium concentration is associated with blood pressure and systemic vascular resistance in normotensive and never-treated hypertensive subjects. Blood Press 2019; 29:137-148. [PMID: 31790289 DOI: 10.1080/08037051.2019.1696180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Purpose: The underlying causes of primary hypertension are not fully understood. Evidence on the relation of plasma calcium concentration with blood pressure (BP) is inconsistent and relies largely on studies utilizing office BP measurements in populations using cardiovascular drugs. In many studies adjustment for confounders was not optimal. In this cross-sectional study we examined the association of plasma total calcium concentration with the haemodynamic determinants of blood pressure.Subjects and methods: Supine haemodynamics were recorded using pulse wave analysis, whole-body impedance cardiography, and heart rate variability analysis in 618 normotensive or never-treated hypertensive subjects (aged 19-72 years) without diabetes, cardiovascular or renal disease, or cardiovascular medications. Linear regression analysis was used to investigate factors associated with haemodynamic variables.Results: Mean age was 45.0 years, body mass index 26.8 kg/m2, seated office BP 141/89 mmHg, and 307 subjects (49.7%) were male. Mean values of routine blood and plasma chemistry analyses were within the reference limits of the tests except for low-density lipoprotein cholesterol (3.05 mmol/l). In the laboratory, mean supine radial BP was 131/75 mmHg, and both systolic and diastolic BP correlated directly with plasma total calcium concentration (r = 0.25 and r = 0.22, respectively, p < 0.001 for both). In regression analysis plasma total calcium concentration was an independent explanatory variable for radial and aortic systolic and diastolic BP, and systemic vascular resistance, but not for cardiac output, pulse wave velocity, or any of the heart rate variability parameters.Conclusion: Plasma total calcium concentration was directly associated with systolic and diastolic BP and systemic vascular resistance in normotensive or never-treated hypertensive subjects without comorbidities and cardiovascular medications. Higher plasma calcium concentration potentially plays a role in primary hypertension via an effect on vascular resistance.
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Affiliation(s)
- Lasse Oinonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Jenni Koskela
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Arttu Eräranta
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Antti Tikkakoski
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Mika Kähönen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Onni Niemelä
- Department of Laboratory Medicine and Medical Research Unit, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Jukka Mustonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka Pörsti
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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25
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Hautaniemi EJ, Tikkakoski AJ, Eräranta A, Kähönen M, Hämäläinen E, Turpeinen U, Huhtala H, Mustonen J, Pörsti IH. Liquorice ingestion attenuates vasodilatation via exogenous nitric oxide donor but not via β2-adrenoceptor stimulation. PLoS One 2019; 14:e0223654. [PMID: 31626649 PMCID: PMC6799927 DOI: 10.1371/journal.pone.0223654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 09/22/2019] [Indexed: 11/19/2022] Open
Abstract
We examined the effect of liquorice ingestion on haemodynamic responses to exogenous nitric oxide donor (nitroglycerin) and β2-adrenoceptor agonist (salbutamol), and 11β-hydroxysteroid dehydrogenase activity, in 21 volunteers and 21 reference subjects. Haemodynamic data was captured before and after sublingual nitroglycerin (0.25 mg) and inhaled salbutamol (400 μg) during orthostatic challenge utilising radial pulse wave analysis and whole-body impedance cardiography. The recordings were performed at baseline and following two weeks of liquorice intake (290-370 mg/d glycyrrhizin). Urinary cortisone and cortisol metabolites were examined. Liquorice intake elevated aortic systolic and diastolic blood pressure and systemic vascular resistance when compared with the reference group. Following research drug administration the liquorice-induced increase in systemic vascular resistance was observed in the presence of nitroglycerin (p<0.05) but no longer in the presence of salbutamol. Liquorice ingestion decreased cardiac chronotropic response to upright posture (p = 0.032) in unadjusted analysis, but when adjusted for age and sex the difference in the upright change in heart rate was no longer significant. The urinary cortisone to cortisol metabolite ratio decreased from 0.70 to 0.31 (p<0.001) after liquorice intake indicating significant inhibition of the 11β-hydroxysteroid dehydrogenase type 2. In the reference group the haemodynamic variables remained virtually unchanged. These results suggest that liquorice exposure impaired vasodilatation in vivo that was induced by exogenous nitric oxide donor but not that induced by β2-adrenoceptor stimulation. Trial registration: EU Clinical Trials Register 2006-002065-39 ClinicalTrials.gov NCT01742702.
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Affiliation(s)
- Elina J. Hautaniemi
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Antti J. Tikkakoski
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Arttu Eräranta
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Mika Kähönen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Esa Hämäläinen
- HUSLAB, Helsinki University Hospital, Helsinki, Finland
- Department of Clinical Chemistry, Biomedicum, Helsinki University, Helsinki, Finland
| | | | - Heini Huhtala
- Faculty of Social Sciences, Tampere University, Tampere, Finland
| | - Jukka Mustonen
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka H. Pörsti
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
- * E-mail:
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26
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Adverse influence of bisoprolol on central blood pressure in the upright position: a double-blind placebo-controlled cross-over study. J Hum Hypertens 2019; 34:301-310. [PMID: 30886326 PMCID: PMC7165126 DOI: 10.1038/s41371-019-0188-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 01/22/2019] [Accepted: 02/18/2019] [Indexed: 02/01/2023]
Abstract
Treatment with beta-blockers is characterized by inferior reduction of central versus peripheral blood pressure. We examined changes in blood pressure, cardiac function, and vascular resistance after 3 weeks of bisoprolol treatment (5 mg/day) during passive head-up tilt in 16 never-treated Caucasian males with grade I–II primary hypertension. A double-blind, randomized, placebo-controlled cross-over design was applied, and hemodynamics were recorded using continuous tonometric pulse wave analysis and whole-body impedance cardiography. Bisoprolol decreased blood pressure in the aorta (~8/10 mmHg, p ≤ 0.032) and radial artery (~10/9 mmHg, p ≤ 0.037), but upright aortic systolic blood pressure was not significantly reduced (p = 0.085). Bisoprolol reduced heart rate and left cardiac work, and increased subendocardial viability index in supine and upright positions (p ≤ 0.044 for all). Bisoprolol increased stroke volume in the supine (~11 ml, p = 0.02) but not in the upright position, while only upright (~1 l/min, p = 0.007) but not supine cardiac output was reduced. Upright elevation in systemic vascular resistance was increased 2.7-fold (p = 0.002), while upright pulse pressure amplification was decreased by ~20% (p = 0.002) after bisoprolol. Aortic augmentation index, augmentation pressure, and pulse pressure were not changed in the supine position but were increased in the upright position (from 9% to 17%, 3–6 mmHg, and 30–34 mmHg, respectively, p ≤ 0.016 for all). In conclusion, although bisoprolol treatment reduced peripheral blood pressure, central systolic blood pressure in the upright position was not decreased. Importantly, the harmful influences of bisoprolol on central pulse pressure and pressure wave reflection were manifested in the upright position.
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27
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Choudhary MK, Eräranta A, Koskela J, Tikkakoski AJ, Nevalainen PI, Kähönen M, Mustonen J, Pörsti I. Atherogenic index of plasma is related to arterial stiffness but not to blood pressure in normotensive and never-treated hypertensive subjects. Blood Press 2019; 28:157-167. [PMID: 30821503 DOI: 10.1080/08037051.2019.1583060] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND AIMS Atherogenic index of plasma (AIP), defined as the logarithm of triglycerides to high-density lipoprotein cholesterol (HDL-C) ratio, is a strong predictor of future cardiovascular disease. Our aim was to examine the association of AIP with haemodynamic variables in normotensive and never-treated hypertensive subjects in a cross-sectional study. METHODS Supine haemodynamics in 615 subjects without antihypertensive and lipid-lowering medications were examined using whole-body impedance cardiography and radial pulse wave analysis. Linear regression analysis was applied to investigate the association of AIP with haemodynamic variables and age, sex, body mass index (BMI), smoking status, alcohol consumption, plasma C-reactive protein, electrolytes, uric acid, low density lipoprotein cholesterol (LDL-C), estimated glomerular filtration rate, and quantitative insulin sensitivity check index. RESULTS The demographics and laboratory values of the study population were (mean ± 95% confidence interval): age 44.9 ± 1.0 years, BMI 26.8 ± 0.4 kg/m2, office blood pressure 140.6 ± 1.6/89.4 ± 1.0 mmHg, total cholesterol 5.2 ± 0.08, LDL-C 3.1 ± 0.08, triglycerides 1.2 ± 0.08, HDL-C 1.6 ± 0.04 mmol/l, and AIP -0.15 ± 0.02. Age (standardized coefficient Beta 0.508, p < .001) and aortic systolic blood pressure (Beta 0.239, p < .001) presented with the strongest associations with pulse wave velocity. However, AIP was also associated with pulse wave velocity (Beta 0.145, p < .001). AIP was not related with aortic or radial blood pressure, cardiac output, systemic vascular resistance, or augmentation index. CONCLUSIONS AIP is directly and independently associated with arterial stiffness, a variable strongly related to cardiovascular risk. This supports more widespread use of AIP in standard clinical cardiovascular disease risk evaluation.
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Affiliation(s)
- Manoj Kumar Choudhary
- a Faculty of Medicine and Health Technology , Tampere University , Tampere , Finland
| | - Arttu Eräranta
- a Faculty of Medicine and Health Technology , Tampere University , Tampere , Finland
| | - Jenni Koskela
- a Faculty of Medicine and Health Technology , Tampere University , Tampere , Finland.,b Department of Internal Medicine , Tampere University Hospital , Tampere , Finland
| | - Antti J Tikkakoski
- a Faculty of Medicine and Health Technology , Tampere University , Tampere , Finland.,c Department of Clinical Physiology , Tampere University Hospital , Tampere , Finland
| | - Pasi I Nevalainen
- b Department of Internal Medicine , Tampere University Hospital , Tampere , Finland
| | - Mika Kähönen
- a Faculty of Medicine and Health Technology , Tampere University , Tampere , Finland.,c Department of Clinical Physiology , Tampere University Hospital , Tampere , Finland
| | - Jukka Mustonen
- a Faculty of Medicine and Health Technology , Tampere University , Tampere , Finland.,b Department of Internal Medicine , Tampere University Hospital , Tampere , Finland
| | - Ilkka Pörsti
- a Faculty of Medicine and Health Technology , Tampere University , Tampere , Finland.,b Department of Internal Medicine , Tampere University Hospital , Tampere , Finland
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Choudhary MK, Eräranta A, Tikkakoski AJ, Koskela J, Hautaniemi EJ, Kähönen M, Mustonen J, Pörsti I. LDL cholesterol is associated with systemic vascular resistance and wave reflection in subjects naive to cardiovascular drugs. Blood Press 2018; 28:4-14. [PMID: 30369274 DOI: 10.1080/08037051.2018.1521263] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND AND AIM Low density lipoprotein cholesterol (LDL-C) is a primary risk factor for atherosclerosis, but it is also associated with elevated blood pressure (BP) and future development of hypertension. We examined the relationship between LDL-C and haemodynamic variables in normotensive and never-treated hypertensive subjects. METHODS We recruited 615 volunteers (19-72 years) without lipid-lowering and BP-lowering medication. Supine haemodynamics were recorded using continuous radial pulse wave analysis, whole-body impedance cardiography, and single channel electrocardiogram. The haemodynamic relations of LDL-C were examined using linear regression analyses with age, sex, body mass index (BMI) (or height and weight as appropriate), smoking status, alcohol use, and plasma C-reactive protein, sodium, uric acid, high density lipoprotein cholesterol (HDL-C), triglycerides, estimated glomerular filtration rate, and quantitative insulin sensitivity check index as the other included variables. RESULTS The mean (SD) characteristics of the subjects were: age 45 (12) years, BMI 27 (4) kg/m2, office BP 141/89 (21/13) mmHg, creatinine 74 (14) µmol/l, total cholesterol 5.2 (1.0), LDL-C 3.1 (0.6), triglycerides 1.2 (0.8), and HDL-C 1.6 (0.4) mmol/l. LDL-C was an independent explanatory factor for aortic systolic and diastolic BP, augmentation index, pulse wave velocity (PWV), and systemic vascular resistance index (p < 0.05 for all). When central BP was included in the model for PWV, LDL-C was no longer an explanatory factor for PWV. CONCLUSIONS LDL-C is independently associated with BP via systemic vascular resistance and wave reflection. These results suggest that LDL-C may play a role in the pathogenesis of primary hypertension.
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Affiliation(s)
| | - Arttu Eräranta
- a Faculty of Medicine and Life Sciences , University of Tampere , Tampere , Finland
| | - Antti J Tikkakoski
- a Faculty of Medicine and Life Sciences , University of Tampere , Tampere , Finland.,b Department of Clinical Physiology , Tampere University Hospital , Tampere , Finland
| | - Jenni Koskela
- a Faculty of Medicine and Life Sciences , University of Tampere , Tampere , Finland
| | - Elina J Hautaniemi
- a Faculty of Medicine and Life Sciences , University of Tampere , Tampere , Finland
| | - Mika Kähönen
- a Faculty of Medicine and Life Sciences , University of Tampere , Tampere , Finland.,b Department of Clinical Physiology , Tampere University Hospital , Tampere , Finland
| | - Jukka Mustonen
- a Faculty of Medicine and Life Sciences , University of Tampere , Tampere , Finland.,c Department of Internal Medicine , Tampere University Hospital , Tampere , Finland
| | - Ilkka Pörsti
- a Faculty of Medicine and Life Sciences , University of Tampere , Tampere , Finland.,c Department of Internal Medicine , Tampere University Hospital , Tampere , Finland
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29
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Kangas P, Tikkakoski A, Uitto M, Viik J, Bouquin H, Niemelä O, Mustonen J, Pörsti I. Metabolic syndrome is associated with decreased heart rate variability in a sex-dependent manner: a comparison between 252 men and 249 women. Clin Physiol Funct Imaging 2018; 39:160-167. [PMID: 30307694 DOI: 10.1111/cpf.12551] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 09/19/2018] [Indexed: 11/30/2022]
Abstract
Impaired heart rate variability (HRV) is associated with increased risk of cardiovascular disease, but evidence regarding alterations of HRV in metabolic syndrome (MetS) remains elusive. In order to examine HRV in MetS, we subjected 501 volunteers without atherosclerosis, diabetes or antihypertensive medication, mean age 48 years, to passive head-up tilt. The subjects were divided to control men (n = 131), men with MetS (n = 121), control women (n = 191) and women with MetS (n = 58) according to the criteria by Alberti et al. (Circulation, 2009, 120, 1640). In unadjusted analyses (i) men and women with MetS had lower total power and high-frequency (HF) power of HRV than controls whether supine or upright (P<0·05 for all). (ii) Supine low-frequency (LF) power of HRV was lower in men (P = 0·012) but not in women (P = 0·064) with MetS than in controls, while men and women with MetS had lower upright LF power of HRV than controls (P <0·01 for both). (iii) The LF:HF ratio did not differ between subjects with and without MetS. After adjustment for age, smoking habits, alcohol intake, height, heart rate and breathing frequency, only the differences in upright total power and HF power of HRV between women with MetS and control women remained significant (P<0·05). In conclusion, reduced total and HF power of HRV in the upright position may partially explain why the relative increase in cardiovascular risk associated with MetS is greater in women than in men. Additionally, the present results emphasize that the confounding factors must be carefully taken into consideration when evaluating HRV.
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Affiliation(s)
- Pauliina Kangas
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Antti Tikkakoski
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.,Department of Clinical Physiology and Nuclear Medicine, Tampere University Hospital, Tampere, Finland
| | - Marko Uitto
- BioMediTech Institute and Faculty of Biomedical Sciences and Engineering, Tampere University of Technology, Tampere, Finland
| | - Jari Viik
- BioMediTech Institute and Faculty of Biomedical Sciences and Engineering, Tampere University of Technology, Tampere, Finland
| | - Heidi Bouquin
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Onni Niemelä
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.,Department of Laboratory Medicine and Medical Research Unit, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Jukka Mustonen
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka Pörsti
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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30
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Effect of present versus previous smoking on non-invasive haemodynamics. Sci Rep 2018; 8:13643. [PMID: 30206258 PMCID: PMC6134124 DOI: 10.1038/s41598-018-31904-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 08/29/2018] [Indexed: 12/19/2022] Open
Abstract
We examined cardiovascular function in 637 volunteers (19-72 years) without antihypertensive medication in never smokers (n = 365), present smokers (n = 81) and previous smokers (n = 191, median abstinence 10 years). Haemodynamics during passive head-up tilt were recorded using whole-body impedance cardiography and radial pulse wave analysis. Results were adjusted for age, sex, body mass index, LDL cholesterol and alcohol use. Systolic and diastolic blood pressure, heart rate, and pulse wave velocity were not different between the groups. Supine aortic reflection times did not differ, while upright values were shorter in present versus previous smokers (p = 0.04). Heart rate adjusted augmentation index was increased in the supine position in present smokers versus controls (p = 0.045), and in present (p < 0.001) and previous (p = 0.031) smokers versus controls in the upright position. Supine and upright cardiac output was higher (p ≤ 0.016) and systemic vascular resistance lower (p ≤ 0.001) in present versus previous smokers. In spite of the long abstinence, in the upright position previous smokers had lower cardiac output (p = 0.032) and higher systemic vascular resistance (p = 0.014) than never smokers. In the absence of differences in blood pressure and arterial stiffness, present smokers presented with hyperdynamic circulation and enhanced wave reflection compared with previous smokers.
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31
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Tikkakoski AJ, Kangas P, Suojanen L, Tahvanainen AM, Eräranta A, Kähönen MAP, Sipilä K, Mustonen JT, Pörsti IH. Salbutamol-induced Decrease in Augmentation Index is Related to the Parallel Increase in Heart Rate. Basic Clin Pharmacol Toxicol 2018; 123:161-173. [PMID: 29476697 DOI: 10.1111/bcpt.12988] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 02/11/2018] [Indexed: 11/30/2022]
Abstract
The change in augmentation index following salbutamol inhalation has been applied to evaluate endothelial function. We examined the contribution of salbutamol-induced increase in heart rate to the observed decrease in augmentation index. Haemodynamics were recorded using whole-body impedance cardiography and continuous pulse wave analysis from tonometric radial blood pressure. All subjects (n = 335, mean age 46, body mass index 26, 48% men) were without medications with cardiovascular influences. The effects of salbutamol inhalation (0.4 mg) versus the endothelium-independent agent nitroglycerin resoriblet (0.25 mg) were examined during passive head-up tilt, as the haemodynamic influences of these compounds depend on body position. Salbutamol decreased augmentation index by ~3-4% units in supine and upright positions. Although salbutamol moderately increased cardiac index (+4.5%) and decreased systemic vascular resistance (-8.5%), the significant haemodynamic explanatory factors for decreased augmentation index in multivariate analysis were increased supine heart rate, and increased upright heart rate and decreased ejection duration (p < 0.001 for all, r2 = 0.36-0.37). Sublingual nitroglycerin decreased supine and upright augmentation index by ~15% units and ~23% units, respectively. The haemodynamic explanatory factors for these changes in multivariate analysis were increased heart rate, reduced ejection duration and reduced systemic vascular resistance (p ≤ 0.021 for all, r2 = 0.22-0.34). In conclusion, the lowering influence of salbutamol on augmentation index may be largely explained by increased heart rate, suggesting that this effect may not predominantly reflect endothelial function.
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Affiliation(s)
- Antti J Tikkakoski
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Pauliina Kangas
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Lauri Suojanen
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Anna M Tahvanainen
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Arttu Eräranta
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland
| | - Mika A P Kähönen
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Kalle Sipilä
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Jukka T Mustonen
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka H Pörsti
- Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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32
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Hautaniemi EJ, Tahvanainen AM, Koskela JK, Tikkakoski AJ, Kähönen M, Uitto M, Sipilä K, Niemelä O, Mustonen J, Pörsti IH. Voluntary liquorice ingestion increases blood pressure via increased volume load, elevated peripheral arterial resistance, and decreased aortic compliance. Sci Rep 2017; 7:10947. [PMID: 28887501 PMCID: PMC5591274 DOI: 10.1038/s41598-017-11468-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 08/24/2017] [Indexed: 12/21/2022] Open
Abstract
We investigated the haemodynamic effects of two-week liquorice exposure (glycyrrhizin dose 290-370 mg/day) in 22 healthy volunteers during orthostatic challenge. Haemodynamics were recorded during passive 10-minute head-up tilt using radial pulse wave analysis, whole-body impedance cardiography, and spectral analysis of heart rate variability. Thirty age-matched healthy subjects served as controls. Liquorice ingestion elevated radial systolic (p < 0.001) and diastolic (p = 0.018) blood pressure and systemic vascular resistance (p = 0.037). During orthostatic challenge, heart rate increased less after the liquorice versus control diet (p = 0.003) and low frequency power of heart rate variability decreased within the liquorice group (p = 0.034). Liquorice intake increased central pulse pressure (p < 0.001) and augmentation index (p = 0.002) supine and upright, but in the upright position the elevation of augmentation index was accentuated (p = 0.007). Liquorice diet also increased extracellular fluid volume (p = 0.024) and aortic to popliteal pulse wave velocity (p = 0.027), and aortic characteristic impedance in the upright position (p = 0.002). To conclude, in addition to increased extracellular fluid volume and large arterial stiffness, two weeks of liquorice ingestion elevated systemic vascular resistance and augmentation index. Measurements performed at rest may underestimate the haemodynamic effects of liquorice ingestion, as enhanced central wave reflection and reduced chronotropic response were especially observed in the upright position.
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Affiliation(s)
- Elina J Hautaniemi
- Faculty of Medicine and Life Sciences, FIN-33014 University of Tampere, Tampere, Finland. .,Nutrition Unit, Tampere University Hospital, Tampere, 33521, Finland.
| | - Anna M Tahvanainen
- Faculty of Medicine and Life Sciences, FIN-33014 University of Tampere, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, 33521, Finland
| | - Jenni K Koskela
- Faculty of Medicine and Life Sciences, FIN-33014 University of Tampere, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, 33521, Finland
| | - Antti J Tikkakoski
- Faculty of Medicine and Life Sciences, FIN-33014 University of Tampere, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, 33521, Finland
| | - Mika Kähönen
- Faculty of Medicine and Life Sciences, FIN-33014 University of Tampere, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, 33521, Finland
| | - Marko Uitto
- Faculty of Medicine and Life Sciences, FIN-33014 University of Tampere, Tampere, Finland
| | - Kalle Sipilä
- Department of Clinical Physiology, Tampere University Hospital, Tampere, 33521, Finland
| | - Onni Niemelä
- Faculty of Medicine and Life Sciences, FIN-33014 University of Tampere, Tampere, Finland.,Department of Laboratory Medicine and Medical Research Unit, Seinäjoki Central Hospital, Seinäjoki, 60220, Finland
| | - Jukka Mustonen
- Faculty of Medicine and Life Sciences, FIN-33014 University of Tampere, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, 33521, Finland
| | - Ilkka H Pörsti
- Faculty of Medicine and Life Sciences, FIN-33014 University of Tampere, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, 33521, Finland
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Patil SG, Patil SS, Aithala MR, Das KK. Comparison of yoga and walking-exercise on cardiac time intervals as a measure of cardiac function in elderly with increased pulse pressure. Indian Heart J 2017; 69:485-490. [PMID: 28822516 PMCID: PMC5560911 DOI: 10.1016/j.ihj.2017.02.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 01/04/2017] [Accepted: 02/06/2017] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE Arterial aging along with increased blood pressure(BP) has become the major cardiovascular(CV) risk in elderly. The aim of the study was to compare the effects of yoga program and walking-exercise on cardiac function in elderly with increased pulse pressure (PP). METHODS An open label, parallel-group randomized controlled study design was adopted. Elderly individuals aged ≥60 years with PP≥60mmHg were recruited for the study. Yoga (study) group (n=30) was assigned for yoga training and walking (exercise) group (n=30) for walking with loosening practices for one hour in the morning for 6days in a week for 3 months. The outcome measures were cardiac time intervals derived from pulse wave analysis and ECG: resting heart rate (RHR), diastolic time(DT), ventricular ejection time(LVET), upstroke time(UT), ejection duration index (ED%), pre-ejection period (PEP), rate pressure product (RPP) and percentage of mean arterial pressure (%MAP). RESULTS The mean within-yoga group change in RHR(bpm) was 4.41 (p=0.031), PD(ms): -50.29 (p=0.042), DT(ms): -49.04 (p=0.017), ED%: 2.107 (p=0.001), ES(mmHg/ms): 14.62 (p=0.118), ET(ms): -0.66 (p=0.903), UT(ms): -2.54 (p=0.676), PEP(ms): -1.25 (p=0.11) and %MAP: 2.08 (p=0.04). The mean within-control group change in HR (bpm) was 0.35 (p=0.887), PD (ms): 11.15(p=0.717), DT (ms): 11.3 (p=0.706), ED%: -0.101 (p=0.936), ES (mmHg/ms): 0.75 (p=0.926), ET(ms): 2.2 (p=0.721), UT(ms):4.7(p=455), PEP (ms): 2.1(p=0.11), %MAP: 0.65 (p=0.451). A significant difference between-group was found in RHR (p=0.036), PD (p=0.02), ED% (p=0.049), LVET (p=0.048), DT (p=0.02) and RPP (p=0.001). CONCLUSIONS Yoga practice for 3 months showed a significant improvement in diastolic function with a minimal change in systolic function. Yoga is more effective than walking in improving cardiac function in elderly with high PP.
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Affiliation(s)
- Satish Gurunathrao Patil
- Department of Physiology, BLDE University's Sri. B.M.Patil Medical College, Hospital and Research Centre, Bijapur, Karnataka, India.
| | - Shankargouda S Patil
- Department of Medicine, BLDE University's Sri. B.M.Patil Medical College, Hospital and Research Centre, Bijapur, Karnataka, India.
| | - Manjunatha R Aithala
- Department of Physiology, BLDE University's Sri. B.M.Patil Medical College, Hospital and Research Centre, Bijapur, Karnataka, India.
| | - Kusal Kanti Das
- Department of Physiology, BLDE University's Sri. B.M.Patil Medical College, Hospital and Research Centre, Bijapur, Karnataka, India.
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Suojanen L, Haring A, Tikkakoski A, Koskela JK, Tahvanainen AM, Huhtala H, Kähönen M, Sipilä K, Eräranta A, Mustonen JT, Kivistö K, Pörsti IH. Haemodynamic Influences of Bisoprolol in Hypertensive Middle-Aged Men: A Double-Blind, Randomized, Placebo-Controlled Cross-Over Study. Basic Clin Pharmacol Toxicol 2017; 121:130-137. [DOI: 10.1111/bcpt.12771] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 02/21/2017] [Indexed: 11/27/2022]
Affiliation(s)
- Lauri Suojanen
- School of Medicine; University of Tampere; Tampere Finland
| | - Antti Haring
- School of Medicine; University of Tampere; Tampere Finland
| | | | | | | | - Heini Huhtala
- School of Health Sciences; University of Tampere; Tampere Finland
| | - Mika Kähönen
- School of Medicine; University of Tampere; Tampere Finland
- Department of Clinical Physiology; Tampere University Hospital; Tampere Finland
| | - Kalle Sipilä
- Department of Clinical Physiology; Tampere University Hospital; Tampere Finland
| | - Arttu Eräranta
- School of Medicine; University of Tampere; Tampere Finland
| | - Jukka T. Mustonen
- School of Medicine; University of Tampere; Tampere Finland
- Department of Internal Medicine; Tampere University Hospital; Tampere Finland
| | - Kari Kivistö
- School of Medicine; University of Tampere; Tampere Finland
| | - Ilkka H. Pörsti
- School of Medicine; University of Tampere; Tampere Finland
- Department of Internal Medicine; Tampere University Hospital; Tampere Finland
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Li N, Wang Y, Yu L, Song M, Wang L, Ji C, Wang X, Wu S. Long-term effects of earthquake experience of young persons on cardiovascular disease risk factors. Arch Med Sci 2017; 13:75-81. [PMID: 28144258 PMCID: PMC5206373 DOI: 10.5114/aoms.2017.64716] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 02/14/2015] [Indexed: 12/02/2022] Open
Abstract
INTRODUCTION The aim of the study was to study the long-term effect on cardiovascular disease risk factors of stress from direct experience of an earthquake as a young person. MATERIAL AND METHODS We selected workers born between July 1, 1958 and July 1, 1976 who were examined at Kailuan General Hospital between May and October of 2013. Data on cardiovascular events were taken during the workers' annual health examination conducted between 2006 and 2007. All subjects were divided into three groups according to their experience of the Tangshan earthquake of July 28, 1976, as follows: control group; exposed group 1 and exposed group 2. We compared cardiovascular disease risk factors between the three groups as well as by gender and age. RESULTS One thousand one hundred and ninety-six workers were included in the final statistical analysis. Among all subjects, resting heart rate (p = 0.003), total cholesterol (p < 0.001), and fasting blood glucose (p < 0.001) were significantly higher among those who experienced the earthquake compared with unexposed controls, but were unrelated to loss of relatives. No significant difference in triglyceride levels was observed between the three groups (p = 0.900). Further refinement showed that the effects were restricted to males 40 years of age or older at the time of analysis, but were due primarily to age at the time of earthquake exposure (p = 0.002, p < 0.001 and p = 0.002). CONCLUSIONS Earthquake experience in the early years of life has long-term effects on adult resting heart rate, total cholesterol, and fasting plasma glucose, especially among men.
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Affiliation(s)
- Na Li
- Department of Mental Health, the First Hospital of Hebei Medical University, Hebei Medical University Institute of Mental Health, Shijiazhuang, China
| | - Yumei Wang
- Department of Mental Health, the First Hospital of Hebei Medical University, Hebei Medical University Institute of Mental Health, Shijiazhuang, China
| | - Lulu Yu
- Department of Mental Health, the First Hospital of Hebei Medical University, Hebei Medical University Institute of Mental Health, Shijiazhuang, China
| | - Mei Song
- Department of Mental Health, the First Hospital of Hebei Medical University, Hebei Medical University Institute of Mental Health, Shijiazhuang, China
| | - Lan Wang
- Department of Mental Health, the First Hospital of Hebei Medical University, Hebei Medical University Institute of Mental Health, Shijiazhuang, China
| | - Chunpeng Ji
- Department of Mental Health, the First Hospital of Hebei Medical University, Hebei Medical University Institute of Mental Health, Shijiazhuang, China
| | - Xueyi Wang
- Department of Mental Health, the First Hospital of Hebei Medical University, Hebei Medical University Institute of Mental Health, Shijiazhuang, China
| | - Shouling Wu
- Department of Cardiology, Kailuan General Hospital, Tangshan, China
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Tan I, Kiat H, Barin E, Butlin M, Avolio AP. Effects of pacing modality on noninvasive assessment of heart rate dependency of indices of large artery function. J Appl Physiol (1985) 2016; 121:771-780. [PMID: 27471239 DOI: 10.1152/japplphysiol.00445.2016] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 07/26/2016] [Indexed: 01/09/2023] Open
Abstract
Studies investigating the relationship between heart rate (HR) and arterial stiffness or wave reflections have commonly induced HR changes through in situ cardiac pacing. Although pacing produces consistent HR changes, hemodynamics can be different with different pacing modalities. Whether the differences affect the HR relationship with arterial stiffness or wave reflections is unknown. In the present study, 48 subjects [mean age, 78 ± 10 (SD), 9 women] with in situ cardiac pacemakers were paced at 60, 70, 80, 90, and 100 beats per min under atrial, atrioventricular, or ventricular pacing. At each paced HR, brachial cuff-based pulse wave analysis was used to determine central hemodynamic parameters, including ejection duration (ED) and augmentation index (AIx). Wave separation analysis was used to determine wave reflection magnitude (RM) and reflection index (RI). Arterial stiffness was assessed by carotid-femoral pulse wave velocity (cfPWV). Pacing modality was found to have significant effects on the HR relationship with ED (P = 0.01), central aortic pulse pressure (P = 0.01), augmentation pressure (P < 0.0001), and magnitudes of both forward and reflected waves (P = 0.05 and P = 0.003, respectively), but not cfPWV (P = 0.57) or AIx (P = 0.38). However, at a fixed HR, significant differences in pulse pressure amplification (P < 0.001), AIx (P < 0.0001), RM (P = 0.03), and RI (P = 0.03) were observed with different pacing modalities. These results demonstrate that although the HR relationships with arterial stiffness and systolic loading as measured by cfPWV and AIx were unaffected by pacing modality, it should still be taken into account for studies in which mixed pacing modalities are present, in particular, for wave reflection studies.
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Affiliation(s)
- Isabella Tan
- Faculty of Medicine and Health Sciences, Macquarie University, Sydney, Australia
| | - Hosen Kiat
- Faculty of Medicine and Health Sciences, Macquarie University, Sydney, Australia; Cardiac Health Institute, Sydney, Australia; and
| | - Edward Barin
- Faculty of Medicine and Health Sciences, Macquarie University, Sydney, Australia; Macquarie Heart, Sydney, Australia
| | - Mark Butlin
- Faculty of Medicine and Health Sciences, Macquarie University, Sydney, Australia;
| | - Alberto P Avolio
- Faculty of Medicine and Health Sciences, Macquarie University, Sydney, Australia
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Kangas P, Tahvanainen A, Tikkakoski A, Koskela J, Uitto M, Viik J, Kähönen M, Kööbi T, Mustonen J, Pörsti I. Increased Cardiac Workload in the Upright Posture in Men: Noninvasive Hemodynamics in Men Versus Women. J Am Heart Assoc 2016; 5:JAHA.115.002883. [PMID: 27329447 PMCID: PMC4937251 DOI: 10.1161/jaha.115.002883] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Background Men and women differ in the risk of cardiovascular disease, but the underlying mechanisms are not completely understood. We examined possible sex‐related differences in supine and upright cardiovascular regulation. Methods and Results Hemodynamics were recorded from 167 men and 167 women of matching age (≈45 years) and body mass index (≈26.5) during passive head‐up tilt. None had diabetes mellitus or cardiovascular disease other than hypertension or used antihypertensive medication. Whole‐body impedance cardiography, tonometric radial blood pressure, and heart rate variability were analyzed. Results were adjusted for height, smoking, alcohol intake, mean arterial pressure, plasma lipids, and glucose. Supine hemodynamic differences were minor: Men had lower heart rate (−4%) and higher stroke index (+7.5%) than women (P<0.05 for both). Upright systemic vascular resistance was lower (−10%), but stroke index (+15%), cardiac index (+16%), and left cardiac work were clearly higher (+20%) in men than in women (P<0.001 for all). Corresponding results were observed in a subgroup of men and postmenopausal women (n=76, aged >55 years). Heart rate variability analyses showed higher low:high frequency ratios in supine (P<0.001) and upright (P=0.003) positions in men. Conclusions The foremost difference in cardiovascular regulation between sexes was higher upright hemodynamic workload for the heart in men, a finding not explained by known cardiovascular risk factors or hormonal differences before menopause. Heart rate variability analyses indicated higher sympathovagal balance in men regardless of body position. The deviations in upright hemodynamics could play a role in the differences in cardiovascular risk between men and women. Clinical Trial Registration URL: http://www.clinicaltrials.gov. Unique identifier: NCT01742702.
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Affiliation(s)
| | - Anna Tahvanainen
- School of Medicine, University of Tampere, Finland Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Antti Tikkakoski
- School of Medicine, University of Tampere, Finland Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Jenni Koskela
- School of Medicine, University of Tampere, Finland Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Marko Uitto
- Department of Electronics and Communication Engineering, Tampere University of Technology, Tampere, Finland
| | - Jari Viik
- Department of Electronics and Communication Engineering, Tampere University of Technology, Tampere, Finland
| | - Mika Kähönen
- School of Medicine, University of Tampere, Finland Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Tiit Kööbi
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Jukka Mustonen
- School of Medicine, University of Tampere, Finland Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka Pörsti
- School of Medicine, University of Tampere, Finland Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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38
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Wilenius M, Tikkakoski AJ, Tahvanainen AM, Haring A, Koskela J, Huhtala H, Kähönen M, Kööbi T, Mustonen JT, Pörsti IH. Central wave reflection is associated with peripheral arterial resistance in addition to arterial stiffness in subjects without antihypertensive medication. BMC Cardiovasc Disord 2016; 16:131. [PMID: 27266507 PMCID: PMC4897906 DOI: 10.1186/s12872-016-0303-6] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 05/30/2016] [Indexed: 12/22/2022] Open
Abstract
Background Augmentation index, a marker of central wave reflection, is influenced by age, sex, height, blood pressure, heart rate, and arterial stiffness. However, the detailed haemodynamic determinants of augmentation index, and their relations, remain uncertain. We examined the association of augmentation index with vascular resistance and other haemodynamic and non-haemodynamic factors. Methods Background information, laboratory values, and haemodynamics of 488 subjects (239 men, 249 women) without antihypertensive medication were obtained. Indices of central wave reflection, systemic vascular resistance, cardiac function, and pulse wave velocity were measured using continuous radial pulse wave analysis and whole-body impedance cardiography. Results In a regression model including only haemodynamic variables, augmentation index in males and female subjects, respectively, was associated with systemic vascular resistance (β = 0.425, β = 0.336), pulse wave velocity (β = 0.409, β = 0.400) (P < 0.001 for all), stroke volume (β = 0.256, β = 0.278) (P = 0.001 for both) and heart rate (β = −0.150, β = −0.156) (P = 0.049 and P = 0.036). When age, height, weight, smoking habits, and laboratory values were included in the regression model, the most significant explanatory variables for augmentation index in males and females, respectively, were age (β = 0.577, β = 0.557) and systemic vascular resistance (β = 0.437, β = 0.295) (P < 0.001 for all). In the final regression model, pulse wave velocity was not a significant explanatory variable for augmentation index, probably due to the high correlation of this variable with age (Spearman’s correlation ≥0.617). Conclusion Augmentation index is strongly associated with systemic vascular resistance in addition to arterial stiffness. Trial registration ClinicalTrials.gov, NCT01742702. Electronic supplementary material The online version of this article (doi:10.1186/s12872-016-0303-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Matias Wilenius
- School of Medicine, Department of Internal Medicine, University of Tampere, Tampere, FIN-33014, Finland.
| | - Antti J Tikkakoski
- School of Medicine, Department of Internal Medicine, University of Tampere, Tampere, FIN-33014, Finland
| | - Anna M Tahvanainen
- School of Medicine, Department of Internal Medicine, University of Tampere, Tampere, FIN-33014, Finland
| | - Antti Haring
- School of Medicine, Department of Pharmacological Sciences, University of Tampere, Tampere, Finland
| | - Jenni Koskela
- School of Medicine, Department of Internal Medicine, University of Tampere, Tampere, FIN-33014, Finland
| | - Heini Huhtala
- School of Health Sciences, University of Tampere, Tampere, Finland
| | - Mika Kähönen
- School of Medicine, Department of Internal Medicine, University of Tampere, Tampere, FIN-33014, Finland.,Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Tiit Kööbi
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Jukka T Mustonen
- School of Medicine, Department of Internal Medicine, University of Tampere, Tampere, FIN-33014, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka H Pörsti
- School of Medicine, Department of Internal Medicine, University of Tampere, Tampere, FIN-33014, Finland.,Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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39
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Mechanisms underlying elevated SBP differ with adiposity in young adults: the Enigma study. J Hypertens 2016; 34:1442-3. [PMID: 27254147 DOI: 10.1097/hjh.0000000000000937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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40
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Tahvanainen AM, Tikkakoski AJ, Koskela JK, Nordhausen K, Viitala JM, Leskinen MH, Kähönen MAP, Kööbi T, Uitto MT, Viik J, Mustonen JT, Pörsti IH. The type of the functional cardiovascular response to upright posture is associated with arterial stiffness: a cross-sectional study in 470 volunteers. BMC Cardiovasc Disord 2016; 16:101. [PMID: 27216309 PMCID: PMC4877753 DOI: 10.1186/s12872-016-0281-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 05/14/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In a cross-sectional study we examined whether the haemodynamic response to upright posture could be divided into different functional phenotypes, and whether the observed phenotypes were associated with known determinants of cardiovascular risk. METHODS Volunteers (n = 470) without medication with cardiovascular effects were examined using radial pulse wave analysis, whole-body impedance cardiography, and heart rate variability analysis. Based on the passive head-up tilt induced changes in systemic vascular resistance and cardiac output, the principal determinants of blood pressure, a cluster analysis was performed. RESULTS The haemodynamic response could be clustered into 3 categories: upright increase in vascular resistance and decrease in cardiac output were greatest in the first (+45 % and -27 %, respectively), smallest in the second (+2 % and -2 %, respectively), and intermediate (+22 % and -13 %, respectively) in the third group. These groups were named as 'constrictor' (n = 109), 'sustainer' (n = 222), and 'intermediate' (n = 139) phenotypes, respectively. The sustainers were characterized by male predominance, higher body mass index, blood pressure, and also by higher pulse wave velocity, an index of large arterial stiffness, than the other groups (p < 0.01 for all). Heart rate variability analysis showed higher supine and upright low frequency/high frequency (LF/HF) ratio in the sustainers than constrictors, indicating increased sympathovagal balance. Upright LF/HF ratio was also higher in the sustainer than intermediate group. In multivariate analysis, independent explanatory factors for higher pulse wave velocity were the sustainer (p < 0.022) and intermediate phenotypes (p < 0.046), age (p < 0.001), body mass index (p < 0.001), and hypertension (p < 0.001). CONCLUSIONS The response to upright posture could be clustered to 3 functional phenotypes. The sustainer phenotype, with smallest upright decrease in cardiac output and highest sympathovagal balance, was independently associated with increased large arterial stiffness. These results indicate an association of the functional haemodynamic phenotype with an acknowledged marker of cardiovascular risk. TRIAL REGISTRATION ClinicalTrials.gov NCT01742702.
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Affiliation(s)
- Anna M Tahvanainen
- School of Medicine, University of Tampere, Tampere, Finland. .,School of Medicine / Internal Medicine, FIN-33014 University of Tampere, Tampere, Finland.
| | | | | | - Klaus Nordhausen
- Department of Mathematics and Statistics, University of Turku, Turku, Finland
| | - Jani M Viitala
- School of Medicine, University of Tampere, Tampere, Finland
| | | | - Mika A P Kähönen
- School of Medicine, University of Tampere, Tampere, Finland.,Department of Clinical Physiology, Tampere University Hospital, P.O. Box 2000, Tampere, 33521, Finland
| | - Tiit Kööbi
- Department of Clinical Physiology, Tampere University Hospital, P.O. Box 2000, Tampere, 33521, Finland
| | - Marko T Uitto
- School of Medicine, University of Tampere, Tampere, Finland.,Department of Electronics and Communication Engineering, Tampere University of Technology, BioMediTech, Tampere, Finland
| | - Jari Viik
- Department of Electronics and Communication Engineering, Tampere University of Technology, BioMediTech, Tampere, Finland
| | - Jukka T Mustonen
- School of Medicine, University of Tampere, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, P.O. Box 2000, Tampere, 33521, Finland
| | - Ilkka H Pörsti
- School of Medicine, University of Tampere, Tampere, Finland.,Department of Internal Medicine, Tampere University Hospital, P.O. Box 2000, Tampere, 33521, Finland
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Greenwood SA, Koufaki P, Mercer TH, Rush R, O'Connor E, Tuffnell R, Lindup H, Haggis L, Dew T, Abdulnassir L, Nugent E, Goldsmith D, Macdougall IC. Aerobic or Resistance Training and Pulse Wave Velocity in Kidney Transplant Recipients: A 12-Week Pilot Randomized Controlled Trial (the Exercise in Renal Transplant [ExeRT] Trial). Am J Kidney Dis 2015. [PMID: 26209542 DOI: 10.1053/j.ajkd.2015.06.016] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Cardiovascular disease remains the leading cause of death in kidney transplant recipients. This pilot study examined the potential effect of aerobic training or resistance training on vascular health and indexes of cardiovascular risk in kidney transplant recipients. STUDY DESIGN Single-blind, randomized, controlled, parallel trial. SETTING & PARTICIPANTS 60 participants (mean age, 54 years; 34 men) were randomly assigned to aerobic training (n=20), resistance training (n=20), or usual care (n=20). Participants were included if they had a kidney transplant within 12 months prior to baseline assessment. Patients were excluded if they had unstable medical conditions or had recently started regular exercise. INTERVENTION Aerobic training and resistance training were delivered 3 days per week for a 12-week period. The usual-care group received standard care. OUTCOMES & MEASUREMENTS Pulse wave velocity, peak oxygen uptake (Vo2peak), sit-to-stand 60, isometric quadriceps force, and inflammatory biomarkers were assessed at 0 and 12 weeks. RESULTS The anticipated 60 participants were recruited within 12 months. 46 participants completed the study (aerobic training, n=13; resistance training, n=13; and usual care, n=20), resulting in a 23% attrition rate. Analyses of covariance, adjusted for baseline values, age, and dialysis vintage pretransplantation, revealed significant mean differences between aerobic training and usual care in pulse wave velocity of -2.2±0.4 (95% CI, -3.1 to -1.3) m/s (P<0.001) and between resistance training and usual care of -2.6±0.4 (95% CI, -3.4 to -1.7) m/s (P<0.001) at 12 weeks. Secondary analyses indicated significant improvements in Vo2peak in the aerobic training group and in Vo2peak, sit-to-stand 60, and isometric muscle force in the resistance training group compared with usual care at 12 weeks. There were no reported adverse events, cardiovascular events, or hospitalizations as a result of the intervention. LIMITATIONS Pilot study, small sample size, no measure of endothelial function. CONCLUSIONS Both aerobic training and resistance training interventions appear to be feasible and clinically beneficial in this patient population.
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Affiliation(s)
- Sharlene A Greenwood
- Department of Renal Medicine, London, United Kingdom; Department of Physiotherapy, King's College Hospital, London, United Kingdom.
| | - Pelagia Koufaki
- School of Health Sciences, Queen Margaret University, Edinburgh, United Kingdom
| | - Thomas H Mercer
- School of Health Sciences, Queen Margaret University, Edinburgh, United Kingdom
| | - Robert Rush
- School of Health Sciences, Queen Margaret University, Edinburgh, United Kingdom
| | - Ellen O'Connor
- Department of Renal Medicine, London, United Kingdom; Department of Physiotherapy, King's College Hospital, London, United Kingdom
| | - Rachel Tuffnell
- Department of Renal Medicine, London, United Kingdom; Department of Physiotherapy, King's College Hospital, London, United Kingdom
| | - Herolin Lindup
- Department of Physiotherapy, King's College Hospital, London, United Kingdom
| | - Lynda Haggis
- Department of Physiotherapy, King's College Hospital, London, United Kingdom
| | - Tracy Dew
- Department of Clinical Biochemistry, King's College Hospital, London, United Kingdom
| | - Lyndsey Abdulnassir
- Department of Renal Medicine, Guy's and St Thomas' Hospital, London, United Kingdom
| | - Eilish Nugent
- Department of Renal Medicine, Guy's and St Thomas' Hospital, London, United Kingdom
| | - David Goldsmith
- Department of Renal Medicine, Guy's and St Thomas' Hospital, London, United Kingdom
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Kardum N, Milovanović B, Šavikin K, Zdunić G, Mutavdžin S, Gligorijević T, Spasić S. Beneficial Effects of Polyphenol-Rich Chokeberry Juice Consumption on Blood Pressure Level and Lipid Status in Hypertensive Subjects. J Med Food 2015; 18:1231-8. [PMID: 25973889 DOI: 10.1089/jmf.2014.0171] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Epidemiological studies have shown a positive association between intake of foods rich in antioxidants and lower incidence of cardiovascular disease development. Polyphenols are considered the most abundant and important dietary antioxidants. The aim of this study was to evaluate effects of polyphenol-rich chokeberry juice consumption on 24-h ambulatory monitored blood pressure (BP) level in subjects with no pharmacologically treated high normal BP or grade I hypertension. Twenty-three subjects (12 men and 11 women) aged 33-67 were enrolled and instructed to consume 200 mL of juice daily for 4 weeks. Participants were divided in two groups, based on prevalence of sympathetic or parasympathetic activity. Measurements of biochemical parameters and heart rate variability analysis were also applied. At the end of the intervention period, average 24-h and awake systolic and diastolic BP were significantly decreased (P<.05). This was more pronounced in the group with prevalence of sympathetic activity. Significant reduction in triglyceride level (P<.05) and a reducing effect on total and low-density lipoprotein cholesterol were also found. Obtained results indicate a positive impact of regular chokeberry juice consumption on BP and lipid status in pharmacologically untreated hypertensive subjects.
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Affiliation(s)
- Nevena Kardum
- 1 Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade , Belgrade, Serbia
| | - Branislav Milovanović
- 2 Department of Cardiology, University Clinical Center Bezanijska Kosa, University of Belgrade , Belgrade, Serbia
| | | | - Gordana Zdunić
- 3 Institute for Medicinal Plants Research , Belgrade, Serbia
| | - Slavica Mutavdžin
- 2 Department of Cardiology, University Clinical Center Bezanijska Kosa, University of Belgrade , Belgrade, Serbia
| | - Tatjana Gligorijević
- 2 Department of Cardiology, University Clinical Center Bezanijska Kosa, University of Belgrade , Belgrade, Serbia
| | - Slavica Spasić
- 4 Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade , Belgrade, Serbia
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Turpeinen H, Seppälä I, Lyytikäinen LP, Raitoharju E, Hutri-Kähönen N, Levula M, Oksala N, Waldenberger M, Klopp N, Illig T, Mononen N, Laaksonen R, Raitakari O, Kähönen M, Lehtimäki T, Pesu M. A genome-wide expression quantitative trait loci analysis of proprotein convertase subtilisin/kexin enzymes identifies a novel regulatory gene variant for FURIN expression and blood pressure. Hum Genet 2015; 134:627-36. [PMID: 25813623 DOI: 10.1007/s00439-015-1546-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Accepted: 03/18/2015] [Indexed: 01/11/2023]
Abstract
Proprotein convertase subtilisin/kexin (PCSK) enzymes cleave and convert their immature substrates into biologically active forms. Polymorphisms in the PCSK genes have been reported to associate with human diseases and phenotypes, including hypercholesterolemia and blood pressure (BP), and targeting PCSKs is considered a promising future form of drug therapy. PCSK processing is readily induced upon upregulation of the enzyme, but the genetic factors contributing to PCSK expression have not been thoroughly characterized. To gain a comprehensive understanding of the genetic regulation of PCSK expression, we performed, for the first time, a genome-wide expression quantitative trait loci (eQTL) analysis using mRNA expression in >1400 human peripheral blood samples from the Cardiovascular Risk in Young Finns Study and ca. ten million single-nucleotide polymorphisms (SNPs). The expression data showed clear expression for FURIN, PCSK5, PCSK7 and MBTPS1 (membrane-bound transcription factor peptidase, site 1) mRNAs in virtually all tested samples. A discovery analysis demonstrated a genome-wide significant (p < 5 × 10(-8)) association with the selected PCSK probes for 1024 variants, which were located at ten independent loci. Of these loci, 5/10 could be confirmed to regulate PCSK expression in two additional and independent sample sets. Finally, a phenotypic analysis demonstrated that a novel cis-eQTL SNP rs4702 for FURIN is strongly associated with both diastolic (p = 0.012) and systolic (p = 0.035) BP levels, as well as peripheral vascular resistance (p = 0.003). These findings indicate that the expression of the PCSK enzymes is regulated by genetic factors, which have biological roles in health and disease.
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Affiliation(s)
- Hannu Turpeinen
- BioMediTech, University of Tampere, Biokatu 8, 33580, Tampere, Finland,
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Vääräniemi K, Koskela J, Tahvanainen A, Tikkakoski A, Wilenius M, Kähönen M, Kööbi T, Niemelä O, Mustonen J, Pörsti I. Lower glomerular filtration rate is associated with higher systemic vascular resistance in patients without prevalent kidney disease. J Clin Hypertens (Greenwich) 2014; 16:722-8. [PMID: 25228202 DOI: 10.1111/jch.12405] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2014] [Revised: 07/29/2014] [Accepted: 07/29/2014] [Indexed: 01/22/2023]
Abstract
The authors examined the association between estimated glomerular filtration rate (eGFR), calculated using the Chronic Kidney Disease Epidemiology Collaboration creatinine-cystatin C equation, and hemodynamics in 556 normotensive or never-treated hypertensive patients without kidney disease (mean age, 46 years). Hemodynamic variables were recorded using pulse wave analysis and whole-body impedance cardiography. The mean eGFR was 98 mL/min/1.73 m(2) (range, 64-145 mL/min/1.73 m(2) and one third of the patients had values below 92, while none had proteinuria. In linear regression analyses adjusted for differences in age, weight:height ratio, low-density lipoprotein cholesterol, and sex, significant associations were found between lower eGFR and higher systolic (P=.001) and diastolic blood pressure (P<.001) and higher systemic vascular resistance (P=.001). There was no association between eGFR and cardiac output or extracellular volume. In the absence of clinical kidney disease, lower eGFR was associated with higher blood pressure and systemic vascular resistance. Therefore, early impairment in kidney function may be involved in the pathogenesis of essential hypertension.
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Affiliation(s)
- Kati Vääräniemi
- School of Medicine, University of Tampere, Tampere, Finland; Department of Internal Medicine, Central Hospital of Central Finland, Jyväskylä, Finland
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45
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Leskinen MH, Hautaniemi EJ, Tahvanainen AM, Koskela JK, Päällysaho M, Tikkakoski AJ, Kähönen M, Kööbi T, Niemelä O, Mustonen J, Pörsti IH. Daily liquorice consumption for two weeks increases augmentation index and central systolic and diastolic blood pressure. PLoS One 2014; 9:e105607. [PMID: 25153328 PMCID: PMC4143270 DOI: 10.1371/journal.pone.0105607] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 07/22/2014] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Liquorice ingestion often elevates blood pressure, but the detailed haemodynamic alterations are unknown. We studied haemodynamic changes induced by liquorice consumption in 20 subjects versus 30 controls with average blood pressures of 120/68 and 116/64 mmHg, respectively. METHODS Haemodynamic variables were measured in supine position before and after two weeks of liquorice consumption (daily glycyrrhizin dose 290-370 mg) with tonometric recording of radial blood pressure, pulse wave analysis, and whole-body impedance cardiography. Thirty age-matched healthy subjects maintaining their normal diet were studied as controls. RESULTS Two weeks of liquorice ingestion elevated peripheral and central systolic and diastolic blood pressure (by 7/4 and 8/4 mmHg, 95% confidence intervals [CI] 2-11/1-8 and 3-13/1-8, respectively, P<0.05), and increased extracellular volume by 0.5 litres (P<0.05 versus controls). Also augmentation index adjusted to heart rate 75/min (from 7% to 11%, 95% CI for change 0.3-7.5, P<0.05) and aortic pulse pressure (by 4 mmHg, 95% CI 1-7, P<0.05) were elevated indicating increased wave reflection from the periphery. In contrast, peripheral (-3/-0.3 mmHg) and central blood pressure (-2/-0.5 mmHg), aortic pulse pressure (-1 mmHg), and augmentation index adjusted to heart rate 75/min (from 9% to 7%) decreased numerically but not statistically significantly without changes in extracellular volume in the control group. Heart rate, systemic vascular resistance, cardiac output, and pulse wave velocity did not differ between the groups. CONCLUSIONS Two weeks of daily liquorice consumption increased extracellular volume, amplified pressure wave reflection from the periphery, and elevated central systolic and diastolic blood pressure. TRIAL REGISTRATION EU Clinical Trials Register EudraCT 2006-002065-39 ClinicalTrials.gov NCT01742702.
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Affiliation(s)
- Miia H. Leskinen
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
| | - Elina J. Hautaniemi
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
| | - Anna M. Tahvanainen
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
| | - Jenni K. Koskela
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
| | - Marika Päällysaho
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
| | - Antti J. Tikkakoski
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
| | - Mika Kähönen
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Tiit Kööbi
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Onni Niemelä
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
- Department of Laboratory Medicine and Medical Research Unit, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Jukka Mustonen
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
| | - Ilkka H. Pörsti
- Department of Internal Medicine, School of Medicine, University of Tampere, Tampere, Finland
- Department of Internal Medicine, Tampere University Hospital, Tampere, Finland
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