Skip to main content

Advertisement

Log in

Immunocognitive Model of Depression Secondary to Anxiety in Adolescents

  • Empirical Research
  • Published:
Journal of Youth and Adolescence Aims and scope Submit manuscript

Abstract

There is evidence that anxiety precedes the onset of depression and that rumination contributes to this risk pathway in adolescence. This study examined inflammatory biomarkers as mediators in a risk model of depressive symptoms secondary to anxiety symptoms among adolescents who ruminate. A sample of 140 adolescents (52% female, 54% African American, 40% Caucasian, 6% biracial, mean age at T1 = 16.5 years, SD = 1.2 years) provided blood samples on two visits (T1 and T2; mean time between T1 and T2 = 13.5 months, SD= 5.9 months). Self-report anxiety, depression, and rumination measures were given at T1 and the depression measure was given again at a third visit (T3, mean months since T1 = 26.0 months, SD = 9.0 months). Higher anxiety predicted more interleukin-6, but not more C-reactive protein, for adolescents with high levels of rumination. Moderated mediation analyses (N for analysis after removing cases with missing data and outliers = 86) indicated that interleukin-6, but not C-reactive protein, at T2 mediated the relationship between anxiety symptoms at T1 and depressive symptoms at T3, conditional on rumination. Anxiety and rumination interacted such that, as rumination increased, anxiety predicted greater inflammation and depressive symptoms. These results demonstrate that established cognitive vulnerabilities for the development of depressive symptoms secondary to anxiety symptoms in adolescence might indirectly operate though biological mechanisms such as inflammation. In addition to highlighting risk factors and potential treatment targets for depression, this study suggests a potential biological mechanism underlying the effects of psychotherapies that reduce rumination on negative affect (e.g., cognitive behavioral therapy).

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3

Similar content being viewed by others

References

Download references

Authors’ Contributions

D.P.M. generated hypotheses, ran and interpreted analyses, and drafted the manuscript; B.A.M. participated in the creation of the database, data cleaning, and provided feedback on the manuscript; L.M.E. participated in the design, cleaning of the inflammation data, and provided feedback on the manuscript; C.L.C. assayed blood samples, aided in database construction, and provided feedback on the manuscript; L.Y.A. helped write the grant that funded the study, and provided feedback on the manuscript; L.B.A. helped design the original study and write the grant that funded the study, participated in the design and coordination of this study, and helped to write and provided feedback on all drafts of the manuscript. All authors read and approved the final manuscript.

Funding

This research was supported by National Institute of Mental Health Grant MH101168 to Lauren B. Alloy.

Data Sharing and Declaration

The datasets generated and/or analyzed during the current study are not publicly available but may be available from the corresponding author on reasonable request.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Lauren B. Alloy.

Ethics declarations

Conflict of Interest

The authors declare that they have no conflict of interest.

Ethical Approval

The Temple University Institutional Review Board approved the protocol (IRB protocol #6844).

Informed Consent

Written informed consent was collected from all study participants after explaining their role in the study and before starting data collection.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Moriarity, D.P., McArthur, B.A., Ellman, L.M. et al. Immunocognitive Model of Depression Secondary to Anxiety in Adolescents. J Youth Adolescence 47, 2625–2636 (2018). https://doi.org/10.1007/s10964-018-0905-7

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10964-018-0905-7

Keywords

Navigation