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J Altern Complement Med. 2010 May;16(5):531-8. doi: 10.1089/acm.2009.0018.

Enhanced psychosocial well-being following participation in a mindfulness-based stress reduction program is associated with increased natural killer cell activity.

Author information

  • 1Fox Chase Cancer Center, Cheltenham, PA 19012, USA. carolyn.fang@fccc.edu

Abstract

BACKGROUND:

Mindfulness-based stress reduction (MBSR) programs have consistently been shown to enhance the psychosocial well-being of participants. Given the well-established association between psychosocial factors and immunologic functioning, it has been hypothesized that enhanced psychosocial well-being among MBSR participants would be associated with corresponding changes in markers of immune activity.

OBJECTIVES:

The objectives of this study were to examine changes in psychosocial and immunologic measures in a heterogeneous patient sample following participation in a MBSR program.

DESIGN:

A single-group, pretest/post-test design was utilized.

SETTING:

The intervention was conducted at an academic health center.

SUBJECTS:

This pilot study involved 24 participants (aged 28-72 years). Inclusion criteria were as follows: > or =18 years of age, English-speaking, and no known autoimmune disorder.

INTERVENTION:

The intervention was an 8-week MBSR program.

OUTCOME MEASURES:

Distress and quality of life (QOL) measures included the Brief Symptom Inventory-18 and the Medical Outcomes Survey Short-Form Health Survey, respectively. Immunologic measures included natural killer (NK) cell cytolytic activity and C-reactive protein (CRP).

RESULTS:

Patients completed psychosocial assessments and provided a blood sample at baseline (pre-MBSR) and within 2 weeks post-MBSR. Significant improvements in anxiety and overall distress as well as across multiple domains of QOL were observed from baseline to post-MBSR. Reductions in anxiety and overall distress were associated with reductions in CRP. Patients who reported improvement in overall mental well-being also showed increased NK cytolytic activity from pre- to post-MBSR, whereas patients who reported no improvement in mental well-being showed no change in NK cytolytic activity.

CONCLUSIONS:

Positive improvement in psychologic well-being following MBSR was associated with increased NK cytolytic activity and decreased levels of CRP.

PMID:
20455784
[PubMed - indexed for MEDLINE]
PMCID:
PMC2921566
Free PMC Article
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