N‐Acetylcysteine improves microcirculatory flow during smoking: New effects of an old drug with possible benefits for smokers
Background: Cigarette smoking provokes marked acute changes in the microcirculatory vasculature, including a reduced blood flow velocity. in accordance with the hypothesis that the reduced blood flow is due to an imbalance between pro‐oxidants and oxidants, we recently showed that most of the reduct...
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Published in | Clinical cardiology (Mahwah, N.J.) Vol. 24; no. 7; pp. 511 - 515 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
New York
Wiley Periodicals, Inc
01.07.2001
Wiley |
Subjects | |
Online Access | Get full text |
ISSN | 0160-9289 1932-8737 |
DOI | 10.1002/clc.4960240719 |
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Abstract | Background: Cigarette smoking provokes marked acute changes in the microcirculatory vasculature, including a reduced blood flow velocity. in accordance with the hypothesis that the reduced blood flow is due to an imbalance between pro‐oxidants and oxidants, we recently showed that most of the reduction could be reversed by a high dose of vitamin C.
Hypothesis: in the present work we tested the hypothesis that N‐acetylcysteine, a mucolyticum and an antioxidant, may have an effect on the smoking‐induced changes observed by vital capillary microscopy of the nailfold.
Methods: in all, 37 healthy volunteers of both genders and with varied smoking habits were treated with N‐acetylcysteine 200 mg t.i.d. for 2 weeks. in vivo investigation of the microcirculation by capillaroscopy was performed before and after treatment.
Results: Treatment with N‐acetylcysteine significantly reduced the smoking‐induced relative decrease in capillary blood flow velocity in a group of volunteers with varied smoking habits (p=0.0016). The preventive effect was clearly significant in smokers (p=0.003).
Conclusion: Treatment with N‐acetylcysteine has a positive impact on microcirculatory flow during smoking, particularly in habitual smokers. |
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AbstractList | Cigarette smoking provokes marked acute changes in the microcirculatory vasculature, including a reduced blood flow velocity. In accordance with the hypothesis that the reduced blood flow is due to an imbalance between pro-oxidants and oxidants, we recently showed that most of the reduction could be reversed by a high dose of vitamin C.
In the present work we tested the hypothesis that N-acetylcysteine, a mucolyticum and an antioxidant, may have an effect on the smoking-induced changes observed by vital capillary microscopy of the nailfold.
In all, 37 healthy volunteers of both genders and with varied smoking habits were treated with N-acetylcysteine 200 mg t.i.d. for 2 weeks. In vivo investigation of the microcirculation by capillaroscopy was performed before and after treatment.
Treatment with N-acetylcysteine significantly reduced the smoking-induced relative decrease in capillary blood flow velocity in a group of volunteers with varied smoking habits (p = 0.0016). The preventive effect was clearly significant in smokers (p = 0.003).
Treatment with N-acetylcysteine has a positive impact on microcirculatory flow during smoking, particularly in habitual smokers. Background: Cigarette smoking provokes marked acute changes in the microcirculatory vasculature, including a reduced blood flow velocity. in accordance with the hypothesis that the reduced blood flow is due to an imbalance between pro‐oxidants and oxidants, we recently showed that most of the reduction could be reversed by a high dose of vitamin C. Hypothesis: in the present work we tested the hypothesis that N‐acetylcysteine, a mucolyticum and an antioxidant, may have an effect on the smoking‐induced changes observed by vital capillary microscopy of the nailfold. Methods: in all, 37 healthy volunteers of both genders and with varied smoking habits were treated with N‐acetylcysteine 200 mg t.i.d. for 2 weeks. in vivo investigation of the microcirculation by capillaroscopy was performed before and after treatment. Results: Treatment with N‐acetylcysteine significantly reduced the smoking‐induced relative decrease in capillary blood flow velocity in a group of volunteers with varied smoking habits (p=0.0016). The preventive effect was clearly significant in smokers (p=0.003). Conclusion: Treatment with N‐acetylcysteine has a positive impact on microcirculatory flow during smoking, particularly in habitual smokers. Background: Cigarette smoking provokes marked acute changes in the microcirculatory vasculature, including a reduced blood flow velocity. in accordance with the hypothesis that the reduced blood flow is due to an imbalance between pro‐oxidants and oxidants, we recently showed that most of the reduction could be reversed by a high dose of vitamin C. Hypothesis: in the present work we tested the hypothesis that N‐acetylcysteine, a mucolyticum and an antioxidant, may have an effect on the smoking‐induced changes observed by vital capillary microscopy of the nailfold. Methods: in all, 37 healthy volunteers of both genders and with varied smoking habits were treated with N‐acetylcysteine 200 mg t.i.d. for 2 weeks. in vivo investigation of the microcirculation by capillaroscopy was performed before and after treatment. Results: Treatment with N‐acetylcysteine significantly reduced the smoking‐induced relative decrease in capillary blood flow velocity in a group of volunteers with varied smoking habits (p=0.0016). The preventive effect was clearly significant in smokers (p=0.003). Conclusion: Treatment with N‐acetylcysteine has a positive impact on microcirculatory flow during smoking, particularly in habitual smokers. Background: Cigarette smoking provokes marked acute changes in the microcirculatory vasculature, including a reduced blood flow velocity. in accordance with the hypothesis that the reduced blood flow is due to an imbalance between pro-oxidants and oxidants, we recently showed that most of the reduction could be reversed by a high dose of vitamin C. Hypothesis: in the present work we tested the hypothesis that N-acetylcysteine, a mucolyticum and an antioxidant, may have an effect on the smoking-induced changes observed by vital capillary microscopy of the nailfold. Methods: in all, 37 healthy volunteers of both genders and with varied smoking habits were treated with N-acetylcysteine 200 mg t.i.d. for 2 weeks. in vivo investigation of the microcirculation by capillaroscopy was performed before and after treatment. Results: Treatment with N-acetylcysteine significantly reduced the smoking-induced relative decrease in capillary blood flow velocity in a group of volunteers with varied smoking habits (p=0.0016). The preventive effect was clearly significant in smokers (p=0.003). Conclusion: Treatment with N-acetylcysteine has a positive impact on microcirculatory flow during smoking, particularly in habitual smokers. Cigarette smoking provokes marked acute changes in the microcirculatory vasculature, including a reduced blood flow velocity. In accordance with the hypothesis that the reduced blood flow is due to an imbalance between pro-oxidants and oxidants, we recently showed that most of the reduction could be reversed by a high dose of vitamin C.BACKGROUNDCigarette smoking provokes marked acute changes in the microcirculatory vasculature, including a reduced blood flow velocity. In accordance with the hypothesis that the reduced blood flow is due to an imbalance between pro-oxidants and oxidants, we recently showed that most of the reduction could be reversed by a high dose of vitamin C.In the present work we tested the hypothesis that N-acetylcysteine, a mucolyticum and an antioxidant, may have an effect on the smoking-induced changes observed by vital capillary microscopy of the nailfold.HYPOTHESISIn the present work we tested the hypothesis that N-acetylcysteine, a mucolyticum and an antioxidant, may have an effect on the smoking-induced changes observed by vital capillary microscopy of the nailfold.In all, 37 healthy volunteers of both genders and with varied smoking habits were treated with N-acetylcysteine 200 mg t.i.d. for 2 weeks. In vivo investigation of the microcirculation by capillaroscopy was performed before and after treatment.METHODSIn all, 37 healthy volunteers of both genders and with varied smoking habits were treated with N-acetylcysteine 200 mg t.i.d. for 2 weeks. In vivo investigation of the microcirculation by capillaroscopy was performed before and after treatment.Treatment with N-acetylcysteine significantly reduced the smoking-induced relative decrease in capillary blood flow velocity in a group of volunteers with varied smoking habits (p = 0.0016). The preventive effect was clearly significant in smokers (p = 0.003).RESULTSTreatment with N-acetylcysteine significantly reduced the smoking-induced relative decrease in capillary blood flow velocity in a group of volunteers with varied smoking habits (p = 0.0016). The preventive effect was clearly significant in smokers (p = 0.003).Treatment with N-acetylcysteine has a positive impact on microcirculatory flow during smoking, particularly in habitual smokers.CONCLUSIONTreatment with N-acetylcysteine has a positive impact on microcirculatory flow during smoking, particularly in habitual smokers. |
Author | Xiu, R.‐J. Björkhem, Ingemar Freyschuss, Anna Lu, Qing Henrksson, Peter |
AuthorAffiliation | 1 Division of Clinical Chemistry and Department of Medicine, Karolinska Institute, Huddinge University Hospital, Stockholm, Sweden |
AuthorAffiliation_xml | – name: 1 Division of Clinical Chemistry and Department of Medicine, Karolinska Institute, Huddinge University Hospital, Stockholm, Sweden |
Author_xml | – sequence: 1 givenname: Qing surname: Lu fullname: Lu, Qing – sequence: 2 givenname: Ingemar surname: Björkhem fullname: Björkhem, Ingemar – sequence: 3 givenname: R.‐J. surname: Xiu fullname: Xiu, R.‐J. – sequence: 4 givenname: Peter surname: Henrksson fullname: Henrksson, Peter – sequence: 5 givenname: Anna surname: Freyschuss fullname: Freyschuss, Anna |
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Keywords | Human Microcirculation Toxicology Thiol Tobacco smoking Acetylcysteine Circulatory velocity Blood capillary Antioxidant Biological activity Endothelium |
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Snippet | Background: Cigarette smoking provokes marked acute changes in the microcirculatory vasculature, including a reduced blood flow velocity. in accordance with... Background: Cigarette smoking provokes marked acute changes in the microcirculatory vasculature, including a reduced blood flow velocity. in accordance with... Cigarette smoking provokes marked acute changes in the microcirculatory vasculature, including a reduced blood flow velocity. In accordance with the hypothesis... |
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SubjectTerms | Acetylcysteine - pharmacology Adult antioxidant Antioxidants - pharmacology Biological and medical sciences Blood Flow Velocity - drug effects capillary blood flow velocity Case-Control Studies Clinical Investigation Clinical Investigations endothelium Female General and cellular metabolism. Vitamins Humans Male Medical sciences microcirculation Microcirculation - drug effects Microscopic Angioscopy N‐acetylcysteine Pharmacology. Drug treatments smoking Smoking - physiopathology |
Title | N‐Acetylcysteine improves microcirculatory flow during smoking: New effects of an old drug with possible benefits for smokers |
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