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Ringin E, Cropley V, Zalesky A, Bruggemann J, Sundram S, Weickert CS, Weickert TW, Bousman CA, Pantelis C, Van Rheenen TE. The impact of smoking status on cognition and brain morphology in schizophrenia spectrum disorders. Psychol Med 2022; 52:3097-3115. [PMID: 33443010 DOI: 10.1017/s0033291720005152] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND Cigarette smoking is associated with worse cognition and decreased cortical volume and thickness in healthy cohorts. Chronic cigarette smoking is prevalent in schizophrenia spectrum disorders (SSD), but the effects of smoking status on the brain and cognition in SSD are not clear. This study aimed to understand whether cognitive performance and brain morphology differed between smoking and non-smoking individuals with SSD compared to healthy controls. METHODS Data were obtained from the Australian Schizophrenia Research Bank. Cognitive functioning was measured in 299 controls and 455 SSD patients. Cortical volume, thickness and surface area data were analysed from T1-weighted structural scans obtained in a subset of the sample (n = 82 controls, n = 201 SSD). Associations between smoking status (cigarette smoker/non-smoker), cognition and brain morphology were tested using analyses of covariance, including diagnosis as a moderator. RESULTS No smoking by diagnosis interactions were evident, and no significant differences were revealed between smokers and non-smokers across any of the variables measured, with the exception of a significantly thinner left posterior cingulate in smokers compared to non-smokers. Several main effects of smoking in the cognitive, volume and thickness analyses were initially significant but did not survive false discovery rate (FDR) correction. CONCLUSIONS Despite the general absence of significant FDR-corrected findings, trend-level effects suggest the possibility that subtle smoking-related effects exist but were not uncovered due to low statistical power. An investigation of this topic is encouraged to confirm and expand on our findings.
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Affiliation(s)
- Elysha Ringin
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne and Melbourne Health, Melbourne, Australia
| | - Vanessa Cropley
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne and Melbourne Health, Melbourne, Australia
- Centre for Mental Health, Faculty of Health, Arts and Design, School of Health Sciences, Swinburne University, Melbourne, Australia
| | - Andrew Zalesky
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne and Melbourne Health, Melbourne, Australia
- Department of Electrical and Electronic Engineering, University of Melbourne, Melbourne, VIC, Australia
| | - Jason Bruggemann
- School of Psychiatry, University of New South Wales, New South Wales, Australia
- Neuroscience Research Australia, New South Wales, Australia
| | - Suresh Sundram
- Florey Institute of Neuroscience and Mental Health, Melbourne, Australia
- Department of Psychiatry, School of Clinical Sciences, Monash University, Clayton, Australia
- Mental Health Program, Monash Health, Clayton, Victoria, Australia
| | - Cynthia Shannon Weickert
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne and Melbourne Health, Melbourne, Australia
- School of Psychiatry, University of New South Wales, New South Wales, Australia
- Neuroscience Research Australia, New South Wales, Australia
- Department of Neuroscience & Physiology, Upstate Medical University, Syracuse, New York 13210, USA
| | - Thomas W Weickert
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne and Melbourne Health, Melbourne, Australia
- School of Psychiatry, University of New South Wales, New South Wales, Australia
- Neuroscience Research Australia, New South Wales, Australia
- Department of Neuroscience & Physiology, Upstate Medical University, Syracuse, New York 13210, USA
| | - Chad A Bousman
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne and Melbourne Health, Melbourne, Australia
- Departments of Medical Genetics, Psychiatry, and Physiology & Pharmacology, University of Calgary, Calgary, AB, Canada
| | - Christos Pantelis
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne and Melbourne Health, Melbourne, Australia
- Florey Institute of Neuroscience and Mental Health, Melbourne, Australia
| | - Tamsyn E Van Rheenen
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, University of Melbourne and Melbourne Health, Melbourne, Australia
- Centre for Mental Health, Faculty of Health, Arts and Design, School of Health Sciences, Swinburne University, Melbourne, Australia
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Pepera G, Panagiota Z. Comparison of heart rate response and heart rate recovery after step test among smoker and non-smoker athletes. Afr Health Sci 2021; 21:105-111. [PMID: 34394287 PMCID: PMC8356598 DOI: 10.4314/ahs.v21i1.15] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Exercise performance depend on the ability of the cardiovascular system to respond to a wide range of metabolic demands and physical exertion. OBJECTIVES To investigate the habitual smoking effects in heart rate response and heart rate recovery after step test in athletes. METHODS Seventy-eight physically healthy active athletes (45 non-smokers and 33 smokers) aging 27±8 years old, participated in this study. All participants completed the International Physical Activity Questionnaire and performed the six-minute step test. Cardiovascular parameters such (resting heart rate, peak heart rate, heart rate at 1 min after testing, heart rate recovery, recovery time, blood pressure at rest, and post-testing blood pressure) were recorded. RESULTS Smoker-athletes had higher resting heart rate (76 ± 9bpm vs. 72 ± 10bpm, p<0.05), maximum heart rate (154 ± 18bpm vs. 147 ± 17bpm, p<0.05) and recovery time (7min 25sec ± 6min 31sec vs. 4min 21sec ± 4min 30sec, p<0.05) than non-smoker athletes. Scores from the IPAQ were approximately the same (M=7927 ± 10303, M= 6380 ± 4539, p<0.05). CONCLUSION Smoking was found to affect athletes' cardiovascular fitness. The change of the athletes' heart rate recovery and recovery time contributes to the adaptation of cardiovascular function in training requirements.
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Affiliation(s)
- Garyfallia Pepera
- Clinical Exercise Physiology and Rehabilitation Laboratory, Department of Physiotherapy, University of Thessaly, 3rd km of Old National Road, GR-35100 Lamia, Greece
| | - Zogka Panagiota
- Clinical Exercise Physiology and Rehabilitation Laboratory, Department of Physiotherapy, University of Thessaly, 3rd km of Old National Road, GR-35100 Lamia, Greece
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Song Y, Lee D, Suh DC, Kim JG, Kim JK, Han M, Liu H, Zhao L, Kim EH, Jung SC, Lee DG, Koo HJ, Kim MJ, Baek S, Hwang SM, Kim BJ, Kim YJ, Cho HJ, Kim SJ, Jeon SB, Kim JS. Cigarette Smoking Preferentially Affects Intracranial Vessels in Young Males: A Propensity-Score Matching Analysis. Neurointervention 2019; 14:43-52. [PMID: 30827064 PMCID: PMC6433193 DOI: 10.5469/neuroint.2018.01123] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 02/18/2019] [Indexed: 11/24/2022] Open
Abstract
Purpose Cigarette smoking (CS) is one of the major risk factors of cerebral atherosclerotic disease, however, its level of contribution to extracranial and intracranial atherosclerotic stenosis (ECAS and ICAS) was not fully revealed yet. The purpose of our study was to assess the association of CS to cerebral atherosclerosis along with other risk factors. Materials and Methods All consecutive patients who were angiographically confirmed with severe symptomatic cerebral atherosclerotic disease between January 2002 and December 2012 were included in this study. Multivariate logistic regression analyses were performed to identify risk factors for ECAS and ICAS. Thereafter, CS group were compared to non-CS group in the entire study population and in a propensity-score matched population with two different age-subgroups. Results Of 1709 enrolled patients, 794 (46.5%) had extracranial (EC) lesions and the other 915 (53.5%) had intracranial (IC) lesions. CS group had more EC lesions (55.8% vs. 35.3%, P<0.001) whereas young age group (<50 years) had more IC lesion (84.5% vs. 47.6%, P<0.001). In multivariate analysis, seven variables including CS, male, old age, coronary heart disease, higher erythrocyte sedimentation rate, multiple lesions, and anterior lesion were independently associated with ECAS. In the propensity-score matched CS group had significant more EC lesion compared to non-CS group (65.7% vs. 47.9%) only in the old age subgroup. Conclusion In contrast to a significant association between CS and severe symptomatic ECAS shown in old population, young patients did not show this association and showed relatively higher preference of ICAS.
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Affiliation(s)
- Yunsun Song
- Department of Radiology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Dongwhane Lee
- Department of Neurology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Dae Chul Suh
- Department of Radiology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Joong-Goo Kim
- Department of Neurology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Jae Kyun Kim
- Department of Radiology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Minkyu Han
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Hairi Liu
- Department of Interventional Radiology, Taizhou People's Hospital, Taizhou, China
| | - Lingbo Zhao
- Department of Radiology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Eun Hye Kim
- Department of Radiology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Sung Chul Jung
- Department of Radiology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Dong-Geun Lee
- Department of Radiology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Hyun Jung Koo
- Department of Radiology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Min-Ju Kim
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Seunghee Baek
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Seon Moon Hwang
- Department of Radiology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Bum Joon Kim
- Department of Neurology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Yeon-Jung Kim
- Department of Neurology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Hong-Jun Cho
- Department of Family Medicine, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Sang Joon Kim
- Department of Radiology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Sang-Beom Jeon
- Department of Neurology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
| | - Jong S Kim
- Department of Neurology, Asan Medical Center, College of Medicine, University of Ulsan, Seoul, Korea
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Risk factors associated with extracranial atherosclerosis in old patients with acute ischemic stroke. Sci Rep 2018; 8:12541. [PMID: 30135472 PMCID: PMC6105595 DOI: 10.1038/s41598-018-31026-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 08/09/2018] [Indexed: 01/10/2023] Open
Abstract
The aim of this study was to identify risk factors associated with extracranial atherosclerosis (ECAS) in old Chinese patients with ischemic stroke. Eligible patients were divided into two groups: <60years group and ≥60 years group. The incidence, severity of ECAS and risk factors related to ECAS were compared between the two groups. In total, 921 patients were included in the analysis. The distribution of ECAS between the two age groups did not show difference (P = 0.747).But severe ECAS stenosis was more common in <60years group than in ≥60years group (x2 = 8.307, P = 0.013). Compared with <60years group, factors contributed to higher risk of ECAS in ≥60year group were hypertension(OR = 6.279, P = 0.000), heart disease(OR = 5.618, P = 0.032) and atrial fibrillation(OR = 7.477, P = 0.015). However, though smoking was higher in the <60years group (x2 = 7.664, P = 0.010) than in ≥60year group, multivariate analysis showed the difference was not significant(P = 0.879). Further studies should focus on risk factors in young ECAS patients. Different risk factors might contribute to ECAS in old age groups compared to young groups. Risk factor prevention/control measures should be strengthened in those with high risk of ECAS for decreasing stroke risk.
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Song Y, Kim JG, Cho HJ, Kim JK, Suh DC. Evaluation of cerebral blood flow change after cigarette smoking using quantitative MRA. PLoS One 2017; 12:e0184551. [PMID: 28953897 PMCID: PMC5617327 DOI: 10.1371/journal.pone.0184551] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 08/26/2017] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Changes in cerebral blood flow (CBF) immediately after cigarette smoking (CS) are still unclear. Our purpose was to evaluate the hemodynamic changes in each intracranial vessel after CS by using quantitative magnetic resonance angiography (MRA). MATERIAL AND METHODS Fifteen healthy male smokers less than 45 years old with more than 3 pack-year smoking history were enrolled in this study. The hemodynamic change in the vessels, represented by cerebral flow rate (CFR, ml/s) and flow velocity (FV, cm/s), was quantitatively measured in eleven vascular segments of the brain using phase-contrast MRA. Two sets of data at each vessel before and after CS were statistically analyzed by paired t-test. Three of 15 participants, as a control group, followed all the procedures but did not smoke. RESULTS Total CFR of the distal intracranial vessels (anterior, middle, and posterior cerebral arteries; ACA, MCA, and PCA) was significantly reduced after CS by 7.3% (847 vs. 785 ml/s, p = 0.024). Such flow changes were statistically more significant in the anterior circulation (ACA and MCA) compared to the posterior circulation (PCA). All distal intracranial vessels did not have significant FV change while peak systolic velocity and mean velocity dropped 7.4 and 4.3% and pulsatility index decreased 10.9% in the internal carotid artery. Regarding cross-sectional areas, all distal intracranial vessels showed diminished, and only MCA had a statistical significance (9.9 vs. 9.3 mm2, p = 0.016). CONCLUSIONS There was a significant decrease of CFR after CS especially in the anterior circulation of twelve young male smokers. Considering the changes of FV and cross-sectional area all together, it can be suggested that cerebrovascular impedance increased after CS especially at the main trunk level of the distal intracranial vessels (ACA, MCA, and PCA).
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Affiliation(s)
- Yunsun Song
- Departments of Radiology and Research Institute of Radiology, University of Ulsan, College of Medicine, Asan Medical Center, Seoul, Korea
| | - Joong-goo Kim
- Departments of Radiology and Research Institute of Radiology, University of Ulsan, College of Medicine, Asan Medical Center, Seoul, Korea
| | - Hong-Jun Cho
- Department of Family Medicine, University of Ulsan, College of Medicine, Asan Medical Center, Seoul, Korea
| | - Jae Kyun Kim
- Department of Radiology, Chung-Ang University, College of Medicine, Seoul, Korea
| | - Dae Chul Suh
- Departments of Radiology and Research Institute of Radiology, University of Ulsan, College of Medicine, Asan Medical Center, Seoul, Korea
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Park HS, Kim SH, Nah HW, Choi JH, Kim DH, Kang MJ, Cha JK, Huh JT. Patient Selection and Clinical Efficacy of Urgent Superficial Temporal Artery-Middle Cerebral Artery Bypass in Acute Ischemic Stroke Using Advanced Magnetic Resonance Imaging Techniques. Oper Neurosurg (Hagerstown) 2017; 13:552-559. [DOI: 10.1093/ons/opx041] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 02/26/2017] [Indexed: 11/14/2022] Open
Abstract
Abstract
BACKGROUND: Selected patients with acute ischemic stroke might benefit from superficial temporal artery-middle cerebral artery (STA-MCA) bypass, but the indications for urgent STA-MCA bypass are unknown.
OBJECTIVE: To report our experiences of urgent STA-MCA bypass in patients requiring urgent reperfusion who were ineligible for other reperfusion therapies, using advanced magnetic resonance imaging (MRI) techniques.
METHODS: The inclusion criteria for urgent STA-MCA bypass were as follows: acute infarct volume <70 mL with a ratio of perfusion/diffusion lesion volume ≥1.2, and a regional cerebral blood volume ratio >0.85. From January 2013 to October 2015, 21 urgent STA-MCA bypass surgeries were performed. The control group included 19 patients who did not undergo bypass surgery mainly due to refusal of surgery or the decision of the neurologist. Clinical and radiological data were compared between the surgery and control group.
RESULTS: The median age of the control group (70 years, interquartile range [IQR] 58-76) was higher than that of the surgery group (62 years, IQR 49-66), but the median preoperative diffusion and perfusion lesion volumes of the surgery group (13.8 mL, IQR 7.5-26.0 and 120.9 mL, IQR 84.9-176.0, respectively) were higher than those of the control group (5.6 mL, IQR 2.1-9.1 and 69.7 mL, IQR 23.9-125.3, respectively). Sixteen (76.2%) patients in the surgery group and 2 (10.5%) patients in the control group had favorable outcomes (P < .001). Logistic regression analysis identified bypass surgery as the strongest predictive factor.
CONCLUSION: STA-MCA bypass can be used as a therapeutic tool for acute ischemic stroke. Advanced MRI techniques are helpful for selecting patients and for decision making.
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Affiliation(s)
- Hyun-Seok Park
- Department of Neurosurgery, Busan–Ulsan Regional Cardiocerebrovascular Center, Medical Science Research Center, College of Medicine, Dong-A University, Busan, Republic of Korea
| | - Sang-Hyeon Kim
- Department of Radiology, Busan–Ulsan Regional Cardiocerebrovascular Center, Medical Science Research Center, College of Medicine, Dong-A University, Busan, Republic of Korea
| | - Hyun-Wook Nah
- Department of Neurology, Busan–Ulsan Regional Cardiocerebrovascular Center, Medical Science Research Center, College of Medicine, Dong-A University, Busan, Republic of Korea
| | - Jae-Hyung Choi
- Department of Neurosurgery, Busan–Ulsan Regional Cardiocerebrovascular Center, Medical Science Research Center, College of Medicine, Dong-A University, Busan, Republic of Korea
| | - Dae-Hyun Kim
- Department of Neurology, Busan–Ulsan Regional Cardiocerebrovascular Center, Medical Science Research Center, College of Medicine, Dong-A University, Busan, Republic of Korea
| | - Myong-Jin Kang
- Department of Radiology, Busan–Ulsan Regional Cardiocerebrovascular Center, Medical Science Research Center, College of Medicine, Dong-A University, Busan, Republic of Korea
| | - Jae-Kwan Cha
- Department of Neurology, Busan–Ulsan Regional Cardiocerebrovascular Center, Medical Science Research Center, College of Medicine, Dong-A University, Busan, Republic of Korea
| | - Jae-Taeck Huh
- Department of Neurosurgery, Busan–Ulsan Regional Cardiocerebrovascular Center, Medical Science Research Center, College of Medicine, Dong-A University, Busan, Republic of Korea
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Wang Y, Lu Z, Sun S, Yang Y, Zhang B, Kang Z, Hu X, Dai Y. Risk factors, topographic patterns and mechanism analysis of intracranial atherosclerotic stenosis ischemic stroke. Int J Neurosci 2016; 127:267-275. [DOI: 10.1080/00207454.2016.1188298] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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