1
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Vencloviene J, Beresnevaite M, Cerkauskaite S, Lopatiene K, Grizas V, Benetis R. The effects of weather on depressive symptoms in patients after cardiac surgery. PSYCHOL HEALTH MED 2023; 28:682-692. [PMID: 36203385 DOI: 10.1080/13548506.2022.2132411] [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: 10/10/2022]
Abstract
Patients with cardiovascular disease have depression more often than the general population does. The aim of the study was to detect the associations between the psychological state and weather variables in patients who underwent coronary artery bypass grafting or valve surgery. The prospective study was performed during 2008-2012 in Kaunas, Lithuania. The psychological state of 233 patients was assessed by using the Symptom Checklist-90-Revised instrument. The assessment was carried out at 1.5 months, 1 year, and 2 years after the surgery. A sample of 531 measurements of psychological states was used. To investigate the relationships between psychological scores and daily weather variables, a mixed linear model was used adjusting for sex, the type of surgery, age, the marital status, the presence of arterial hypertension, diabetes, major depressive disorders, dysthymic disorders, agoraphobia, smoking before surgery, and myocardial infarction in the anamnesis. The mean somatisation score and air temperature on the second day prior to the survey were found to have a negative correlation in the multivariate model. Lower mean scores of anxiety and depression were linked to hotter days (air temperature >16.25°C on the second day) that did not occur in July or August. During colder days (air temperature <0.35°C), a higher mean score of anxiety and phobic anxiety was observed. A higher mean score of somatizations, depression, and anxiety was seen on the second day after the day with wind speed ≤2.85 kt and on the day after the day with relative humidity <66%. Both a decrease and an increase in daily atmospheric pressure were associated with a higher depression score. Our results confirm that among patients after open heart surgery, psychosomatic complaints are related to some weather changes. The obtained results can help to determine the complexity of weather patterns linked to poorer psychological health.
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Affiliation(s)
- Jone Vencloviene
- Department of Environmental Sciences, Vytautas Magnus University, Kaunas, Lithuania.,Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | | | - Sonata Cerkauskaite
- Department of Environmental Sciences, Vytautas Magnus University, Kaunas, Lithuania.,Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Kristina Lopatiene
- Department of Orthodontics, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Vytautas Grizas
- Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Rimantas Benetis
- Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, Lithuania.,Clinic of Cardiac, Thoracic and Vascular Surgery, Lithuanian University of Health Sciences, Kaunas, Lithuania
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2
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Sarafis ZK, Squair JW, Barak OF, Coombs GB, Soriano JE, Larkin-Kaiser KA, Lee AHX, Hansen A, Vodopic M, Romac R, Grant C, Charbonneau R, Mijacika T, Krassioukov AV, Ainslie PN, Dujic Z, Phillips AA. Common carotid artery responses to the cold-pressor test are impaired in individuals with cervical spinal cord injury. Am J Physiol Heart Circ Physiol 2022; 323:H1311-H1322. [PMID: 36367686 DOI: 10.1152/ajpheart.00261.2022] [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: 11/13/2022]
Abstract
Cervical spinal cord injury (SCI) leads to autonomic cardiovascular dysfunction that underlies the three- to fourfold elevated risk of cardiovascular disease in this population. Reduced common carotid artery (CCA) dilatory responsiveness during the cold-pressor test (CPT) is associated with greater cardiovascular disease risk and progression. The cardiovascular and CCA responses to the CPT may provide insight into cardiovascular autonomic dysfunction and cardiovascular disease risk in individuals with cervical SCI. Here, we used CPT to perturb the autonomic nervous system in 14 individuals with cervical SCI and 12 uninjured controls, while measuring cardiovascular responses and CCA diameter. The CCA diameter responses were 55% impaired in those with SCI compared with uninjured controls (P = 0.019). The CCA flow, velocity, and shear response to CPT were reduced in SCI by 100% (P < 0.001), 113% (P = 0.001), and 125% (P = 0.002), respectively. The association between mean arterial pressure and CCA dilation observed in uninjured individuals (r = 0.54, P = 0.004) was absent in the SCI group (r = 0.22, P = 0.217). Steady-state systolic blood pressure (P = 0.020), heart rate (P = 0.003), and cardiac contractility (P < 0.001) were reduced in those with cervical SCI, whereas total peripheral resistance was increased compared with uninjured controls (P = 0.042). Relative cerebral blood velocity responses to CPT were increased in the SCI group and reduced in controls (middle cerebral artery, P = 0.010; posterior cerebral artery, P = 0.026). The CCA and cardiovascular responsiveness to CPT are impaired in those with cervical SCI.NEW & NOTEWORTHY This is the first study demonstrating that CCA responses during CPT are suppressed in SCI. Specifically, CCA diameter, flow, velocity, and shear rate were reduced. The relationship between changes in MAP and CCA dilatation in response to CPT was absent in individuals with SCI, despite similar cardiovascular activation between SCI and uninjured controls. These findings support the notion of elevated cardiovascular disease risk in SCI and that the cardiovascular responses to environmental stimuli are impaired.
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Affiliation(s)
- Zoe K Sarafis
- International Collaboration on Repair Discoveries, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jordan W Squair
- International Collaboration on Repair Discoveries, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.,RESTORE.network, Departments of Physiology and Pharmacology, Cardiac Sciences and Clinical Neurosciences, Biomedical Engineering, Libin Cardiovascular Institute of Alberta, Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada.,MD/PhD Training Program, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.,Department of Experimental Medicine, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Otto F Barak
- Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Geoff B Coombs
- Centre for Heart, Lung and Vascular Health, University of British Columbia Okanagan, Kelowna, British Columbia, Canada
| | - Jan Elaine Soriano
- RESTORE.network, Departments of Physiology and Pharmacology, Cardiac Sciences and Clinical Neurosciences, Biomedical Engineering, Libin Cardiovascular Institute of Alberta, Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Kelly A Larkin-Kaiser
- RESTORE.network, Departments of Physiology and Pharmacology, Cardiac Sciences and Clinical Neurosciences, Biomedical Engineering, Libin Cardiovascular Institute of Alberta, Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Amanda H X Lee
- International Collaboration on Repair Discoveries, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.,Department of Experimental Medicine, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Alex Hansen
- Department of Sport Science, University of Innsbruck, Innsbruck, Austria
| | - Maro Vodopic
- Department of Neurology, General Hospital, Dubrovnik, Croatia
| | - Rinaldo Romac
- Department of Neurology, Clinical Hospital Center, Split, Croatia
| | - Christopher Grant
- Division of Physical Medicine and Rehabilitation, Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Rebecca Charbonneau
- Division of Physical Medicine and Rehabilitation, Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Tanja Mijacika
- Department of Integrative Physiology, University of Split School of Medicine, Split, Croatia
| | - Andrei V Krassioukov
- International Collaboration on Repair Discoveries, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.,Division of Physical Medicine and Rehabilitation, University of British Columbia, Vancouver, British Columbia, Canada.,GF Strong Rehabilitation Centre, Vancouver, British Columbia, Canada
| | - Philip N Ainslie
- Centre for Heart, Lung and Vascular Health, University of British Columbia Okanagan, Kelowna, British Columbia, Canada
| | - Zeljko Dujic
- Department of Integrative Physiology, University of Split School of Medicine, Split, Croatia
| | - Aaron A Phillips
- RESTORE.network, Departments of Physiology and Pharmacology, Cardiac Sciences and Clinical Neurosciences, Biomedical Engineering, Libin Cardiovascular Institute of Alberta, Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
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3
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Corticospinal and peripheral responses to heat-induced hypo-hydration: potential physiological mechanisms and implications for neuromuscular function. Eur J Appl Physiol 2022; 122:1797-1810. [PMID: 35362800 PMCID: PMC9287254 DOI: 10.1007/s00421-022-04937-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 03/16/2022] [Indexed: 12/05/2022]
Abstract
Heat-induced hypo-hydration (hyperosmotic hypovolemia) can reduce prolonged skeletal muscle performance; however, the mechanisms are less well understood and the reported effects on all aspects of neuromuscular function and brief maximal contractions are inconsistent. Historically, a 4–6% reduction of body mass has not been considered to impair muscle function in humans, as determined by muscle torque, membrane excitability and peak power production. With the development of magnetic resonance imaging and neurophysiological techniques, such as electromyography, peripheral nerve, and transcranial magnetic stimulation (TMS), the integrity of the brain-to-muscle pathway can be further investigated. The findings of this review demonstrate that heat-induced hypo-hydration impairs neuromuscular function, particularly during repeated and sustained contractions. Additionally, the mechanisms are separate to those of hyperthermia-induced fatigue and are likely a result of modulations to corticospinal inhibition, increased fibre conduction velocity, pain perception and impaired contractile function. This review also sheds light on the view that hypo-hydration has ‘no effect’ on neuromuscular function during brief maximal voluntary contractions. It is hypothesised that irrespective of unchanged force, compensatory reductions in cortical inhibition are likely to occur, in the attempt of achieving adequate force production. Studies using single-pulse TMS have shown that hypo-hydration can reduce maximal isometric and eccentric force, despite a reduction in cortical inhibition, but the cause of this is currently unclear. Future work should investigate the intracortical inhibitory and excitatory pathways within the brain, to elucidate the role of the central nervous system in force output, following heat-induced hypo-hydration.
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4
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Tymko MM, Kerstens TP, Wildfong KW, Ainslie PN. Cerebrovascular response to the cold pressor test - the critical role of carbon dioxide. Exp Physiol 2017; 102:1647-1660. [DOI: 10.1113/ep086585] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 09/15/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Michael M. Tymko
- Centre for Heart, Lung and Vascular Health, School of Health and Exercise Science; University of British Columbia; Kelowna BC Canada
| | | | - Kevin W. Wildfong
- Centre for Heart, Lung and Vascular Health, School of Health and Exercise Science; University of British Columbia; Kelowna BC Canada
| | - Philip N. Ainslie
- Centre for Heart, Lung and Vascular Health, School of Health and Exercise Science; University of British Columbia; Kelowna BC Canada
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5
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Flück D, Ainslie PN, Bain AR, Wildfong KW, Morris LE, Fisher JP. Extra- and intracranial blood flow regulation during the cold pressor test: influence of age. J Appl Physiol (1985) 2017; 123:1071-1080. [PMID: 28663374 DOI: 10.1152/japplphysiol.00224.2017] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 05/30/2017] [Accepted: 06/26/2017] [Indexed: 11/22/2022] Open
Abstract
We determined how the extra- and intracranial circulations respond to generalized sympathetic activation evoked by a cold pressor test (CPT) and whether this is affected by healthy aging. Ten young [23 ± 2 yr (means ± SD)] and nine older (66 ± 3 yr) individuals performed a 3-min CPT by immersing the left foot into 0.8 ± 0.3°C water. Common carotid artery (CCA) and internal carotid artery (ICA) diameter, velocity, and flow were simultaneously measured (duplex ultrasound) along with middle cerebral artery and posterior cerebral artery mean blood velocity (MCAvmean and PCAvmean) and cardiorespiratory variables. The increases in heart rate (~6 beats/min) and mean arterial blood pressure (~14 mmHg) were similar in young and older groups during the CPT (P < 0.01 vs. baseline). In the young group, the CPT elicited an ~5% increase in CCA diameter (P < 0.01 vs. baseline) and a tendency for an increase in CCA flow (~12%, P = 0.08); in contrast, both diameter and flow remained unchanged in the older group. Although ICA diameter was not changed during the CPT in either group, ICA flow increased (~8%, P = 0.02) during the first minute of the CPT in both groups. Whereas the CPT elicited an increase in MCAvmean and PCAvmean in the young group (by ~20 and ~10%, respectively, P < 0.01 vs. baseline), these intracranial velocities were unchanged in the older group. Collectively, during the CPT, these findings suggest a differential mechanism(s) of regulation between the ICA compared with the CCA in young individuals and a blunting of the CCA and intracranial responses in older individuals.NEW & NOTEWORTHY Sympathetic activation evoked by a cold pressor test elicits heterogeneous extra- and intracranial blood vessel responses in young individuals that may serve an important protective role. The extra- and intracranial responses to the cold pressor test are blunted in older individuals.
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Affiliation(s)
- Daniela Flück
- Centre for Heart, Lung, and Vascular Health, School of Health and Exercise Sciences, University of British Columbia - Okanagan, Kelowna, British Columbia, Canada; and
| | - Philip N Ainslie
- Centre for Heart, Lung, and Vascular Health, School of Health and Exercise Sciences, University of British Columbia - Okanagan, Kelowna, British Columbia, Canada; and
| | - Anthony R Bain
- Centre for Heart, Lung, and Vascular Health, School of Health and Exercise Sciences, University of British Columbia - Okanagan, Kelowna, British Columbia, Canada; and
| | - Kevin W Wildfong
- Centre for Heart, Lung, and Vascular Health, School of Health and Exercise Sciences, University of British Columbia - Okanagan, Kelowna, British Columbia, Canada; and
| | - Laura E Morris
- Centre for Heart, Lung, and Vascular Health, School of Health and Exercise Sciences, University of British Columbia - Okanagan, Kelowna, British Columbia, Canada; and
| | - James P Fisher
- School of Sport, Exercise, and Rehabilitation Sciences, College of Life and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
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6
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Ferguson BJ, Marler S, Altstein LL, Lee EB, Mazurek MO, McLaughlin A, Macklin EA, McDonnell E, Davis DJ, Belenchia AM, Gillespie CH, Peterson CA, Bauman ML, Margolis KG, Veenstra-VanderWeele J, Beversdorf DQ. Associations between cytokines, endocrine stress response, and gastrointestinal symptoms in autism spectrum disorder. Brain Behav Immun 2016; 58:57-62. [PMID: 27181180 PMCID: PMC5526212 DOI: 10.1016/j.bbi.2016.05.009] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 05/09/2016] [Accepted: 05/12/2016] [Indexed: 02/08/2023] Open
Abstract
Many children and adolescents with autism spectrum disorder (ASD) have significant gastrointestinal (GI) symptoms, but the etiology is currently unknown. Some individuals with ASD show altered reactivity to stress and altered immune markers relative to typically-developing individuals, particularly stress-responsive cytokines including tumor necrosis factor alpha (TNF-α) and interleukin 6 (IL-6). Acute and chronic stress is associated with the onset and exacerbation of GI symptoms in those without ASD. The present study examined whether GI symptoms in ASD were associated with increases in cortisol, a stress-associated endocrine marker, and TNF-α and IL-6 in response to stress. As hypothesized, a greater amount of lower GI tract symptoms were significantly associated with post-stress cortisol concentration. The relationship between cortisol response to stress and GI functioning was greater for children who had a history of regressive autism. Exploratory analyses revealed significant correlations between cortisol response, intelligence, and inappropriate speech. In contrast, symptoms of the lower GI tract were not associated with levels of TNF-α or IL-6. Significant correlations were found, however, between TNF-α and IL-6 and irritability, socialization, and intelligence. These findings suggest that individuals with ASD and symptoms of the lower GI tract may have an increased response to stress, but this effect is not associated with concomitant changes in TNF-α and IL-6. The relationship between cortisol stress response and lower GI tract symptoms in children with regressive autism, as well as the relationships between cortisol, IL-6, and intelligence in ASD, warrant further investigation.
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Affiliation(s)
- Bradley J. Ferguson
- Interdisciplinary Neuroscience Program, University of Missouri, United States,The Thompson Center for Autism and Neurodevelopmental Disorders, University of Missouri, United States
| | - Sarah Marler
- Department of Child and Adolescent Psychiatry, Vanderbilt University Medical Center, United States
| | - Lily L. Altstein
- Massachusetts General Hospital Biostatistics Center, United States
| | - Evon Batey Lee
- Departments of Pediatrics, Psychology, and Psychiatry, Vanderbilt University, United States
| | - Micah O. Mazurek
- The Thompson Center for Autism and Neurodevelopmental Disorders, University of Missouri, United States,Department of Health Psychology, University of Missouri, United States
| | | | - Eric A. Macklin
- Massachusetts General Hospital Biostatistics Center, United States,Harvard Medical School, United States
| | - Erin McDonnell
- Massachusetts General Hospital Biostatistics Center, United States
| | - Daniel J. Davis
- Department of Veterinary Pathobiology, University of Missouri, United States
| | - Anthony M. Belenchia
- Department of Nutrition and Exercise Physiology, University of Missouri, United States
| | | | - Catherine A. Peterson
- Department of Nutrition and Exercise Physiology, University of Missouri, United States
| | | | - Kara Gross Margolis
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Columbia University, United States
| | - Jeremy Veenstra-VanderWeele
- Department of Psychiatry and Sackler Institute for Developmental Psychobiology, Columbia University, United States,New York State Psychiatric Institute, New York Presbyterian Hospital Center for Autism and the Developing Brain, United States
| | - David Q. Beversdorf
- Interdisciplinary Neuroscience Program, University of Missouri, United States,The Thompson Center for Autism and Neurodevelopmental Disorders, University of Missouri, United States,William and Nancy Thompson Chair in Radiology, Departments of Radiology, Neurology, and Psychological Sciences, University of Missouri, United States,Corresponding author at: DC 069.10, One Hospital Drive, University of Missouri, Department of Radiology, Columbia, MO 65212, United States. (D.Q. Beversdorf)
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7
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Ferguson BJ, Marler S, Altstein LL, Lee EB, Akers J, Sohl K, McLaughlin A, Hartnett K, Kille B, Mazurek M, Macklin EA, McDonnell E, Barstow M, Bauman ML, Margolis KG, Veenstra-VanderWeele J, Beversdorf DQ. Psychophysiological Associations with Gastrointestinal Symptomatology in Autism Spectrum Disorder. Autism Res 2016; 10:276-288. [PMID: 27321113 DOI: 10.1002/aur.1646] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 04/26/2016] [Indexed: 12/26/2022]
Abstract
Autism spectrum disorder (ASD) is often accompanied by gastrointestinal disturbances, which also may impact behavior. Alterations in autonomic nervous system functioning are also frequently observed in ASD. The relationship between these findings in ASD is not known. We examined the relationship between gastrointestinal symptomatology, examining upper and lower gastrointestinal tract symptomatology separately, and autonomic nervous system functioning, as assessed by heart rate variability and skin conductance level, in a sample of 120 individuals with ASD. Relationships with co-occurring medical and psychiatric symptoms were also examined. While the number of participants with significant upper gastrointestinal tract problems was small in this sample, 42.5% of participants met criteria for functional constipation, a disorder of the lower gastrointestinal tract. Heart rate variability, a measure of parasympathetic modulation of cardiac activity, was found to be positively associated with lower gastrointestinal tract symptomatology at baseline. This relationship was particularly strong for participants with co-occurring diagnoses of anxiety disorder and for those with a history of regressive ASD or loss of previously acquired skills. These findings suggest that autonomic function and gastrointestinal problems are intertwined in children with ASD; although it is not possible to assess causality in this data set. Future work should examine the impact of treatment of gastrointestinal problems on autonomic function and anxiety, as well as the impact of anxiety treatment on gastrointestinal problems. Clinicians should be aware that gastrointestinal problems, anxiety, and autonomic dysfunction may cluster in children with ASD and should be addressed in a multidisciplinary treatment plan. Autism Res 2017, 10: 276-288. © 2016 International Society for Autism Research, Wiley Periodicals, Inc.
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Affiliation(s)
- Bradley J Ferguson
- Interdisciplinary Neuroscience Program, University of Missouri.,The Thompson Center for Autism and Neurodevelopmental Disorders, University of Missouri
| | - Sarah Marler
- Department of Child and Adolescent Psychiatry, Vanderbilt University Medical Center
| | | | - Evon Batey Lee
- Departments of Pediatrics, Psychology, and Psychiatry, Vanderbilt University
| | - Jill Akers
- The Thompson Center for Autism and Neurodevelopmental Disorders, University of Missouri
| | - Kristin Sohl
- The Thompson Center for Autism and Neurodevelopmental Disorders, University of Missouri.,Department of Child Health, University of Missouri
| | | | | | - Briana Kille
- Department of Psychological Sciences, University of Missouri
| | - Micah Mazurek
- The Thompson Center for Autism and Neurodevelopmental Disorders, University of Missouri.,Department of Health Psychology, University of Missouri
| | - Eric A Macklin
- Massachusetts General Hospital Biostatistics Center.,Harvard Medical School
| | | | | | | | - Kara Gross Margolis
- Department of Pediatrics, Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Columbia University
| | - Jeremy Veenstra-VanderWeele
- Department of Psychiatry and Sackler Institute for Developmental Psychobiology, Columbia University.,New York State Psychiatric Institute; New York Presbyterian Hospital Center for Autism and the Developing Brain
| | - David Q Beversdorf
- Interdisciplinary Neuroscience Program, University of Missouri.,The Thompson Center for Autism and Neurodevelopmental Disorders, University of Missouri.,William and Nancy Thompson Chair in Radiology, Departments of Radiology, Neurology, and Psychological Sciences, University of Missouri
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8
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Perry BG, Bear TLK, Lucas SJE, Mündel T. Mild dehydration modifies the cerebrovascular response to the cold pressor test. Exp Physiol 2015; 101:135-42. [DOI: 10.1113/ep085449] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 09/11/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Blake G. Perry
- School of Sport and Exercise; Massey University; Palmerston North New Zealand
| | - Tracey L. K. Bear
- School of Sport and Exercise; Massey University; Palmerston North New Zealand
- School of Psychology; Massey University; Palmerston North New Zealand
| | - Samuel J. E. Lucas
- Department of Physiology; University of Otago; Dunedin New Zealand
- School of Sport, Exercise and Rehabilitation Sciences, College of Life and Environmental Sciences; University of Birmingham; UK
| | - Toby Mündel
- School of Sport and Exercise; Massey University; Palmerston North New Zealand
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9
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Rätsep T, Asser T. Subthalamic stimulation improves the cerebral hemodynamic response to the cold pressure test in patients with Parkinson's disease. JOURNAL OF CLINICAL ULTRASOUND : JCU 2012; 40:547-553. [PMID: 22941961 DOI: 10.1002/jcu.21984] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2011] [Accepted: 08/06/2012] [Indexed: 06/01/2023]
Abstract
PURPOSE Disturbances of the autonomic nervous system are common in patients with Parkinson's disease (PD) but the effect of deep brain stimulation of the subthalamic nucleus on cerebrovascular reactivity is not entirely known. METHODS Seven patients in an advanced stage of the disease and seven healthy age-matched controls participated in the study, which took place after one night of drug withdrawal. Cerebral blood flow velocity was continuously monitored on both sides with transcranial Doppler ultrasound, and cerebrovascular reactivity (CR) was evaluated with the cold pressure test. The measurements were repeated and compared during the stimulation-on and -off phases. RESULTS The PD patients had significantly higher CR values in the stimulation-on than -off conditions (15.1% ± 6.9 versus 9.4% ± 6.2; p = 0.03). CR values were higher in controls than in patients in the stimulation-off condition (20.4% ± 12.5 versus 9.4% ± 6.2; p = 0.007) without a significant difference with the stimulation-on phase. CONCLUSIONS CR, evaluated by the response to the cold pressure test, is impaired in patients with advanced PD and improved by subthalamic nucleus.
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Affiliation(s)
- Tõnu Rätsep
- Department of Neurology and Neurosurgery, University of Tartu, Estonia
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10
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Vianna LC, Sales ARK, da Nóbrega ACL. Cerebrovascular responses to cold pressor test during static exercise in humans. Clin Physiol Funct Imaging 2011; 32:59-64. [DOI: 10.1111/j.1475-097x.2011.01055.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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11
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Ikemura T, Someya N, Hayashi N. Autoregulation in the ocular and cerebral arteries during the cold pressor test and handgrip exercise. Eur J Appl Physiol 2011; 112:641-6. [PMID: 21643919 DOI: 10.1007/s00421-011-2016-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Accepted: 05/18/2011] [Indexed: 11/26/2022]
Abstract
The aim of this study was to determine whether autoregulation exerts similar effects in the ocular and cerebral vessels, which are both branches of the internal carotid artery. Ocular blood flow velocities, cerebral blood flow velocity and blood pressure were measured in 11 subjects during a 2-min resting period, static handgrip exercise (HG) and a cold pressor test (CPT). Blood velocity data for the superior and inferior temporal retinal arterioles (STRA and ITRA, respectively) and the retinal and choroidal vasculature (RCV) were obtained for 4 s during the measurement using laser speckle flowmetry. Mean blood flow velocity in the middle cerebral artery (MCAVmean) was measured by transcranial Doppler ultrasound. The conductance index (CI) of each vessel was calculated by dividing blood flow by mean arterial pressure. Blood flow velocity in the RCV increased by 19 ± 9% from resting baseline level during the CPT (P < 0.05), while blood flow in the STRA, ITRA and MCAVmean did not. The CI of the MCA decreased. The RCV blood flow velocity, ITRA blood flow and MCAVmean increased by 8 ± 1, 9 ± 3 and 11 ± 4%, respectively, during the HG (P < 0.05). Conversely, STRA blood flow remained unchanged. The HG did not significantly change the CI in any of the vessels measured. These findings suggest that cerebral blood flow velocity was maintained during the CPT, but autoregulation does not work well in the RCV during the CPT and HG.
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Affiliation(s)
- Tsukasa Ikemura
- Graduate School of Human-Environment Studies, Kyushu University, Kasuga 816-8580, Japan
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12
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High frequency repetitive transcranial magnetic stimulation decreases cerebral vasomotor reactivity. Clin Neurophysiol 2009; 120:1188-94. [DOI: 10.1016/j.clinph.2009.03.021] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2008] [Revised: 03/25/2009] [Accepted: 03/31/2009] [Indexed: 11/21/2022]
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13
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Hogan AM, Hill CM, Harrison D, Kirkham FJ. Cerebral blood flow velocity and cognition in children before and after adenotonsillectomy. Pediatrics 2008; 122:75-82. [PMID: 18595989 DOI: 10.1542/peds.2007-2540] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE The goal was to determine whether amelioration of sleep-disordered breathing through adenotonsillectomy would reduce middle cerebral artery velocity in parallel with improvements in cognition and behavior. METHODS For 19 children (mean age: 6 years) with mild sleep-disordered breathing, and 14 healthy, ethnically similar and age-similar, control subjects, parents repeated the Pediatric Sleep Questionnaire an average of 12 months after adenotonsillectomy. Children with sleep-disordered breathing underwent repeated overnight measurement of mean oxyhemoglobin saturation. Neurobehavioral tests that yielded significant group differences preoperatively were readministered. Middle cerebral artery velocity measurements were repeated with blinding to sleep study and neuropsychological results, and mixed-design analyses of variance were performed. RESULTS The median Pediatric Sleep Questionnaire score significantly improved postoperatively, and there was a significant increase in mean overnight oxyhemoglobin saturation. The middle cerebral artery velocity decreased in the sleep-disordered breathing group postoperatively, whereas control subjects showed a slight increase. A preoperative group difference was reduced by the postoperative assessment, which suggests normalization of middle cerebral artery velocity in those with sleep-disordered breathing. The increase in mean overnight oxyhemoglobin saturation postoperatively was associated with a reduction in middle cerebral artery velocity in a subgroup of children. A preoperative group difference in processing speed was reduced postoperatively. Similarly, a trend for a preoperative group difference in visual attention was reduced postoperatively. Executive function remained significantly worse for the children with sleep-disordered breathing, compared with control subjects, although mean postoperative scores were lower than preoperative scores. CONCLUSIONS Otherwise-healthy young children with apparently mild sleep-disordered breathing have potentially reversible cerebral hemodynamic and neurobehavioral changes.
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Affiliation(s)
- Alexandra M Hogan
- Developmental Brain-Behaviour Unit, Neurosciences Unit, University College London Institute of Child Health, London, England
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14
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Tsai SJ, Chen SC, Leu TM, Chen CM, Chou HH, Peng HY, Liao JM, Lin TB. Impairment of cerebral hemodynamic response to the cold pressor test in patients with Parkinson's disease. Parkinsonism Relat Disord 2008; 15:94-100. [PMID: 18440850 DOI: 10.1016/j.parkreldis.2008.03.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2007] [Revised: 03/04/2008] [Accepted: 03/17/2008] [Indexed: 11/25/2022]
Abstract
BACKGROUND AND PURPOSE Disturbance of the autonomic nervous system (ANS) is frequently encountered in Parkinson's disease (PD). In this study, we examined changes in systemic and cerebral hemodynamics during the cold pressor test (CPT) to determine whether cerebrovascular reactivity, controlled by the sympathetic nervous system, is intact or impaired in patients with PD. METHODS Forty-nine patients with PD and 49 sex- and age-matched non-PD subjects were evaluated. Measurements were performed in the resting state and over a period of 1min of CPT. The cerebral blood flow velocity (CBFV) and pulsatility index (PI) of the middle cerebral artery (MCA) were recorded by transcranial color-coded Doppler ultrasonography (TCCS). Mean arterial blood pressure (MAP), heart rate (HR), and end-tidal CO(2) (Et-CO(2)) were investigated simultaneously. The resistance of the cerebrovascular bed (CVR) was calculated as the ratio of mean arterial blood pressure to mean cerebral blood flow velocity (Vm). Changes of Vm, PI and CVR in response to the cold pressor test were evaluated. RESULTS Baseline values for control and PD subjects showed no statistical difference. CPT induced a significant increase in MAP, HR, and Vm in both groups. Pulsatility index (PI) and CVR were decreased in both groups during CPT. Percent increases of Vm (P<0.001) and MAP (P=0.011) were significantly higher while the percent decreases of PI (P=0.002) and CVR (P=0.007) were significantly decreased more in the non-PD group. CONCLUSIONS This study indirectly shows that ANS-mediated cerebrovascular reactivity is impaired in patients with PD. Further investigations are needed to confirm the hypothesis that using the cold pressor test to evaluate cerebrovascular reactivity might be beneficial in early diagnosis of impairment of ANS-mediated cerebrovascular autoregulation in patients with PD.
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Affiliation(s)
- Shih-Jei Tsai
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan; School of Medicine, Chung Shan Medical University, Taichung, Taiwan
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15
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Abstract
Cognitive flexibility is affected by stress. The cold pressor test is a known adrenergic stressor that impairs memory, but the effect on cognitive flexibility is unknown. Sixteen subjects were given cognitive flexibility and memory tasks with and without one hand immersed in cold water. Memory was impaired in the cold pressor condition but there was no effect on cognitive flexibility. The lack of a cold pressor effect on cognitive flexibility may result from an isolated effect on the peripheral noradrenergic system, whereas indirect effects due to nociception on memory may occur.
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Affiliation(s)
- Kelly Ishizuka
- Department of Neurosurgery, University of Minnesota, MN, USA
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16
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Catz A, Bluvshtein V, Pinhas I, Akselrod S, Gelernter I, Nissel T, Vered Y, Bornstein N, Korczyn AD. Cold pressor test in tetraplegia and paraplegia suggests an independent role of the thoracic spinal cord in the hemodynamic responses to cold. Spinal Cord 2007; 46:33-8. [PMID: 17406378 DOI: 10.1038/sj.sc.3102055] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Cold application to the hand (CAH) is associated in healthy people with increase in heart rate (HR) and blood pressure (BP). OBJECTIVE To study hemodynamic responses to CAH in humans following spinal cord injuries of various levels, and examine the effect of spinal cord integrity on the cold pressor response. DESIGN An experimental controlled study. SETTING The spinal research laboratory, Loewenstein Hospital, Raanana, Israel. SUBJECTS Thirteen healthy subjects, 10 patients with traumatic T(4-6) paraplegia and 11 patients with traumatic C(4-7) tetraplegia. MAIN OUTCOME MEASURES HR, BP, HR and BP spectral components (low frequency, LF; high frequency, HF; LF/HF), cerebral blood flow velocity (CBFV) and cerebrovascular resistance index (CVRi). METHODS The outcome measures of the three subject groups monitored for HR, BP and CBFV were compared from 5 min before to 5 min after 40-150 s of CAH. The recorded signals were digitized online and analyzed offline in both the time and frequency domains. RESULTS During CAH, HR and CVRi increased significantly in all subject groups (P<0.001), and BP in control subjects and in the tetraplegia group (P<0.01). BP increase was not statistically significant in paraplegia, and CBFV, HR LF, HR HF and BP LF did not change significantly during CAH in any group. CONCLUSIONS The CAH effect in tetraplegia and the suppressed BP increase in paraplegia, supported by the other findings, suggest a contribution of an independent thoracic spinal mechanism to the cold pressor response.
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Affiliation(s)
- A Catz
- The Spinal Department, Loewenstein Rehabilitation Hospital, Raanana, Israel.
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17
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Zvan B, Zaletel M, Pogacnik T, Bajrovic FF. Effect of Generalized Sympathetic Activation by Cold Pressor Test on Cerebral Hemodynamics in Diabetics with Autonomic Dysfunction. Cerebrovasc Dis 2005; 20:449-55. [PMID: 16230850 DOI: 10.1159/000088984] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2005] [Accepted: 07/14/2005] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND We examined the effects of the cold pressor test on the cerebral circulation in diabetics with autonomic dysfunction without orthostatic hypotension using transcranial Doppler. METHODS Twenty diabetics with autonomic dysfunction and 19 age-matched healthy controls participated in the study. The mean arterial blood velocity was measured in the middle cerebral artery during the cold pressor test together with the mean arterial blood pressure. RESULTS The mean arterial blood velocity significantly (p < 0.01) increased during the 1st, 2nd, and 3rd min of the cold pressor test by 10.6, 14.1, and 13.4%, respectively, in the control subjects and by 5.8, 7.2, and 6.8%, respectively, in the diabetics. Simultaneously, the mean arterial blood pressure significantly (p < 0.01) increased by 12, 26, and 23%, respectively, in the controls and by 9.4, 12.4 and 12.9%, respectively, in the diabetics. The increases in the mean arterial velocity as well as in the mean arterial blood pressure were significantly higher in the controls than in the diabetics (p < 0.01). The change in the mean arterial blood pressure related significantly to the change in the mean arterial blood velocity both in the controls (p < 0.01, r = 0.76) and in the diabetics (p < 0.01; r = 0.59). The slope of the regression line was significantly steeper in the controls (b = 0.42, SE = 0.05) as compared with the diabetics with autonomic dysfunction (b = 0.27, SE = 0.05; p = 0.02). Moreover, also the relative increase in the cerebrovascular resistance index was higher in the controls than in the diabetics (p < 0.05). CONCLUSION These findings in the diabetics with autonomic neuropathy, but without orthostatic hypotension, suggest a failure in the cerebral autoregulation due to impaired cerebrovascular neurogenic control.
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Affiliation(s)
- B Zvan
- Department of Neurology, Medical Centre Ljubljana, Ljubljana, Slovenia.
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18
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Bulbena A, Pailhez G, Aceña R, Cunillera J, Rius A, Garcia-Ribera C, Gutiérrez J, Rojo C. Panic anxiety, under the weather? INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2005; 49:238-243. [PMID: 15726446 DOI: 10.1007/s00484-004-0236-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2004] [Revised: 09/08/2004] [Accepted: 09/30/2004] [Indexed: 05/24/2023]
Abstract
The relationship between weather conditions and psychiatric disorders has been a continuous subject of speculation due to contradictory findings. This study attempts to further clarify this relationship by focussing on specific conditions such as panic attacks and non-panic anxiety in relation to specific meteorological variables. All psychiatric emergencies attended at a general hospital in Barcelona (Spain) during 2002 with anxiety as main complaint were classified as panic or non-panic anxiety according to strict independent and retrospective criteria. Both groups were assessed and compared with meteorological data (wind speed and direction, daily rainfall, temperature, humidity and solar radiation). Seasons and weekend days were also included as independent variables. Non-parametric statistics were used throughout since most variables do not follow a normal distribution. Logistic regression models were applied to predict days with and without the clinical condition. Episodes of panic were three times more common with the poniente wind (hot wind), twice less often with rainfall, and one and a half times more common in autumn than in other seasons. These three trends (hot wind, rainfall and autumn) were accumulative for panic episodes in a logistic regression formula. Significant reduction of episodes on weekends was found only for non-panic episodes. Panic attacks, unlike other anxiety episodes, in a psychiatric emergency department in Barcelona seem to show significant meteorotropism. Assessing specific disorders instead of overall emergencies or other variables of a more general quality could shed new light on the relationship between weather conditions and behaviour.
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Affiliation(s)
- A Bulbena
- Department of Psychiatry, Institut d'Atenció Psiquiàtrica: Salut Mental i Toxicomanies, IMAS, Hospital del Mar, Universitat Autonoma Barcelona, Passeig Maritim 29, 08003 Barcelona, Spain.
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Oblak JP, Zaletel M, Zvan B, Kiauta T, Pogacnik T. The effect of age on cerebrovascular reactivity to cold pressor test and head-up tilt. Acta Neurol Scand 2002; 106:30-3. [PMID: 12067325 DOI: 10.1034/j.1600-0404.2002.01186.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To compare the cold pressor test (CPT) and head-up tilt (HUT) responses of the older and younger healthy individuals by transcranial Doppler. SUBJECTS AND METHODS Forty healthy volunteers were divided into two age groups (18-39 years, 40-69 years). Mean blood velocity (v(m)) in both middle cerebral arteries was monitored during CPT and HUT. Mean arterial blood pressure, heart rate and end-tidal CO(2) (Et-CO(2)) were measured simultaneously. RESULTS The v(m) increased by 7.1% during CPT and decreased by 10.1% during HUT. The v(m) responses were significantly lower in the older group (P < 0.01). Linear regression analysis showed a significant effect of age on dv(m) during both CPT (P < 0.01) as well as HUT (P < 0.01). CONCLUSION The age affected the v(m) responses to CPT and HUT in the group of older subjects.
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Affiliation(s)
- J P Oblak
- Department of Neurology, Laboratory of Neurosonology, University Medical Center Ljubljana, Slovenia.
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Serrador JM, Picot PA, Rutt BK, Shoemaker JK, Bondar RL. MRI measures of middle cerebral artery diameter in conscious humans during simulated orthostasis. Stroke 2000; 31:1672-8. [PMID: 10884472 DOI: 10.1161/01.str.31.7.1672] [Citation(s) in RCA: 551] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND PURPOSE The relationship between middle cerebral artery (MCA) flow velocity (CFV) and cerebral blood flow (CBF) is uncertain because of unknown vessel diameter response to physiological stimuli. The purpose of this study was to directly examine the effect of a simulated orthostatic stress (lower body negative pressure [LBNP]) as well as increased or decreased end-tidal carbon dioxide partial pressure (P(ET)CO(2)) on MCA diameter and CFV. METHODS Twelve subjects participated in a CO(2) manipulation protocol and/or an LBNP protocol. In the CO(2) manipulation protocol, subjects breathed room air (normocapnia) or 6% inspired CO(2) (hypercapnia), or they hyperventilated to approximately 25 mm Hg P(ET)CO(2) (hypocapnia). In the LBNP protocol, subjects experienced 10 minutes each of -20 and -40 mm Hg lower body suction. CFV and diameter of the MCA were measured by transcranial Doppler and MRI, respectively, during the experimental protocols. RESULTS Compared with normocapnia, hypercapnia produced increases in both P(ET)CO(2) (from 36+/-3 to 40+/-4 mm Hg, P<0.05) and CFV (from 63+/-4 to 80+/-6 cm/s, P<0.001) but did not change MCA diameters (from 2.9+/-0.3 to 2.8+/-0.3 mm). Hypocapnia produced decreases in both P(ET)CO(2) (24+/-2 mm Hg, P<0.005) and CFV (43+/-7 cm/s, P<0.001) compared with normocapnia, with no change in MCA diameters (from 2.9+/-0.3 to 2.9+/-0.4 mm). During -40 mm Hg LBNP, P(ET)CO(2) was not changed, but CFV (55+/-4 cm/s) was reduced from baseline (58+/-4 cm/s, P<0.05), with no change in MCA diameter. CONCLUSIONS Under the conditions of this study, changes in MCA diameter were not detected. Therefore, we conclude that relative changes in CFV were representative of changes in CBF during the physiological stimuli of moderate LBNP or changes in P(ET)CO(2).
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Affiliation(s)
- J M Serrador
- Neurovascular Research Laboratory, School of Kinesiology, and the Robarts Research Institute, The University of Western Ontario, London, Ontario, Canada
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