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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Low heart rate variability and cancer-related fatigue in breast cancer survivors</title><author><name sortKey="Crosswell, Alexandra D" sort="Crosswell, Alexandra D" uniqKey="Crosswell A" first="Alexandra D." last="Crosswell">Alexandra D. Crosswell</name></author><author><name sortKey="Lockwood, Kimberly G" sort="Lockwood, Kimberly G" uniqKey="Lockwood K" first="Kimberly G." last="Lockwood">Kimberly G. Lockwood</name></author><author><name sortKey="Ganz, Patricia A" sort="Ganz, Patricia A" uniqKey="Ganz P" first="Patricia A." last="Ganz">Patricia A. Ganz</name></author><author><name sortKey="Bower, Julienne E" sort="Bower, Julienne E" uniqKey="Bower J" first="Julienne E." last="Bower">Julienne E. Bower</name></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">24845177</idno><idno type="pmc">4344376</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4344376</idno><idno type="RBID">PMC:4344376</idno><idno type="doi">10.1016/j.psyneuen.2014.03.011</idno><date when="2014">2014</date><idno type="wicri:Area/Pmc/Corpus">001368</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">001368</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Low heart rate variability and cancer-related fatigue in breast cancer survivors</title><author><name sortKey="Crosswell, Alexandra D" sort="Crosswell, Alexandra D" uniqKey="Crosswell A" first="Alexandra D." last="Crosswell">Alexandra D. Crosswell</name></author><author><name sortKey="Lockwood, Kimberly G" sort="Lockwood, Kimberly G" uniqKey="Lockwood K" first="Kimberly G." last="Lockwood">Kimberly G. Lockwood</name></author><author><name sortKey="Ganz, Patricia A" sort="Ganz, Patricia A" uniqKey="Ganz P" first="Patricia A." last="Ganz">Patricia A. Ganz</name></author><author><name sortKey="Bower, Julienne E" sort="Bower, Julienne E" uniqKey="Bower J" first="Julienne E." last="Bower">Julienne E. Bower</name></author></analytic><series><title level="j">Psychoneuroendocrinology</title><idno type="ISSN">0306-4530</idno><idno type="eISSN">1873-3360</idno><imprint><date when="2014">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p id="P1">Cancer-related fatigue is a common and often long lasting symptom for many breast cancer survivors. Fatigued survivors show evidence of elevated inflammation, but the physiological mechanisms driving inflammatory activity have not been determined. Alterations in the autonomic nervous system, and particularly parasympathetic nervous system activity, are a plausible, yet understudied contributor to cancer-related fatigue. The goal of this study was to replicate one previous study showing an association between lower parasympathetic activity and higher fatigue in breast cancer survivors (<xref rid="R22" ref-type="bibr">Fagundes et al., 2011</xref>), and to examine whether inflammation mediates this association. Study participants were drawn from two samples and included 84 women originally diagnosed with early-stage breast cancer prior to age 50. Participants completed questionnaires, provided blood samples for determination of interleukin (IL)-6 and C-reactive protein (CRP), and underwent electrocardiography (ECG) assessment for evaluation of resting heart rate variability (HRV), a measure of parasympathetic activity. Results showed that lower HRV was associated with higher fatigue (<italic>p</italic> < .05), as predicted. In bivariate analyses, HRV was also correlated with circulating concentrations of IL-6 and CRP. However, path analyses did not support inflammation as a mediator of the association between HRV and fatigue; instead, associations among these variables appeared to be driven by age and BMI. These findings identify HRV as a potential contributor to cancer-related fatigue, but suggest that inflammation does not mediate this association in younger, healthy breast cancer survivors who are several years post-treatment. The autonomic nervous system merits additional attention in research on the etiology of cancer-related fatigue.</p></div></front></TEI><pmc article-type="research-article"><pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<pmc-dir>properties manuscript</pmc-dir>
<front><journal-meta><journal-id journal-id-type="nlm-journal-id">7612148</journal-id><journal-id journal-id-type="pubmed-jr-id">6787</journal-id><journal-id journal-id-type="nlm-ta">Psychoneuroendocrinology</journal-id><journal-id journal-id-type="iso-abbrev">Psychoneuroendocrinology</journal-id><journal-title-group><journal-title>Psychoneuroendocrinology</journal-title></journal-title-group><issn pub-type="ppub">0306-4530</issn><issn pub-type="epub">1873-3360</issn></journal-meta><article-meta><article-id pub-id-type="pmid">24845177</article-id><article-id pub-id-type="pmc">4344376</article-id><article-id pub-id-type="doi">10.1016/j.psyneuen.2014.03.011</article-id><article-id pub-id-type="manuscript">NIHMS659965</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title-group><article-title>Low heart rate variability and cancer-related fatigue in breast cancer survivors</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Crosswell</surname><given-names>Alexandra D.</given-names></name><degrees>M.A.</degrees><xref rid="FN1" ref-type="author-notes">1</xref><aff id="A1">UCLA Department of Psychology</aff></contrib><contrib contrib-type="author"><name><surname>Lockwood</surname><given-names>Kimberly G.</given-names></name><degrees>B.A.</degrees><aff id="A2">University of Pittsburgh Department of Psychology, 210 S. Bouquet Street, Sennott Square 3<sup>rd</sup> Floor, Pittsburgh, PA, USA, 15260</aff></contrib><contrib contrib-type="author"><name><surname>Ganz</surname><given-names>Patricia A.</given-names></name><degrees>M.D.</degrees><aff id="A3">UCLA Schools of Medicine & Public Health & the Jonsson Comprehensive Cancer Center, 650 Charles Young Drive South, Room A2-125 CHS, Los Angeles, CA, USA, 90095-6900</aff></contrib><contrib contrib-type="author"><name><surname>Bower</surname><given-names>Julienne E.</given-names></name><degrees>Ph.D.</degrees><aff id="A4">UCLA Department of Psychology and Department of Psychiatry and Behavioral Sciences, 1285 Franz Hall, Box 951563, Los Angeles, CA, USA, 90095-1563</aff></contrib></contrib-group><author-notes><corresp id="FN1"><label>1</label>Corresponding author contact information: 1285 Franz Hall, Box 951563, Los Angeles, CA, USA, 90095-1563, 650-224-1750 phone, <email>ahdupont@ucla.edu</email></corresp></author-notes><pub-date pub-type="nihms-submitted"><day>1</day><month>2</month><year>2015</year></pub-date><pub-date pub-type="epub"><day>30</day><month>3</month><year>2014</year></pub-date><pub-date pub-type="ppub"><month>7</month><year>2014</year></pub-date><pub-date pub-type="pmc-release"><day>01</day><month>7</month><year>2015</year></pub-date><volume>45</volume><fpage>58</fpage><lpage>66</lpage><pmc-comment>elocation-id from pubmed: 10.1016/j.psyneuen.2014.03.011</pmc-comment>
<abstract><p id="P1">Cancer-related fatigue is a common and often long lasting symptom for many breast cancer survivors. Fatigued survivors show evidence of elevated inflammation, but the physiological mechanisms driving inflammatory activity have not been determined. Alterations in the autonomic nervous system, and particularly parasympathetic nervous system activity, are a plausible, yet understudied contributor to cancer-related fatigue. The goal of this study was to replicate one previous study showing an association between lower parasympathetic activity and higher fatigue in breast cancer survivors (<xref rid="R22" ref-type="bibr">Fagundes et al., 2011</xref>), and to examine whether inflammation mediates this association. Study participants were drawn from two samples and included 84 women originally diagnosed with early-stage breast cancer prior to age 50. Participants completed questionnaires, provided blood samples for determination of interleukin (IL)-6 and C-reactive protein (CRP), and underwent electrocardiography (ECG) assessment for evaluation of resting heart rate variability (HRV), a measure of parasympathetic activity. Results showed that lower HRV was associated with higher fatigue (<italic>p</italic> < .05), as predicted. In bivariate analyses, HRV was also correlated with circulating concentrations of IL-6 and CRP. However, path analyses did not support inflammation as a mediator of the association between HRV and fatigue; instead, associations among these variables appeared to be driven by age and BMI. These findings identify HRV as a potential contributor to cancer-related fatigue, but suggest that inflammation does not mediate this association in younger, healthy breast cancer survivors who are several years post-treatment. The autonomic nervous system merits additional attention in research on the etiology of cancer-related fatigue.</p></abstract><kwd-group><kwd>symptoms</kwd><kwd>autonomic nervous system</kwd><kwd>autonomic functioning</kwd><kwd>parasympathetic activity</kwd><kwd>inflammation</kwd></kwd-group></article-meta></front></pmc></record>Pour manipuler ce document sous Unix (Dilib)
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