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Reduction in salivary α-amylase levels following a mind-body intervention in cancer survivors--an exploratory study.

Psychoneuroendocrinology
September 1, 2013
David L Lipschitz et al. (5 authors)
Journal ArticleRandomized Controlled TrialResearch Support, N.I.H., ExtramuralHuman StudyClinical
Study Details

Study Goal

The researchers aimed to determine whether sleep-focused mind-body interventions (Mind-Body Bridging and Mindfulness Meditation) could positively modulate salivary α-amylase and cortisol levels in cancer survivors with sleep disturbances.

Results Summary

The study found that Mind-Body Bridging (MBB) reduced waking salivary α-amylase levels compared to the control group, suggesting a positive effect on sympathetic activity. Self-reported sleep improved across all interventions, with the greatest improvement in the MBB group, though cortisol levels did not significantly differ among groups.

Population

Female and male cancer survivors with self-reported sleep disturbances.

Effective Dosage

Three sessions, once per week for three consecutive weeks.

Duration

Three weeks.

Interactions

None mentioned.

Extracted Claims (6)
InterventionDirectionEndpointPopulationDosageImpactClaim #
Mind-Body Bridging (MBB)
decrease
mean sAA levels upon awakening ("Waking" sample)
cancer survivors with self-reported sleep disturbance
-
declined
#1
Sleep Hygiene Education (SHE)
decrease
mean Waking cortisol levels
cancer survivors with self-reported sleep disturbance
-
declined slightly
#2
Mind-Body Bridging (MBB)
increase
self-reported sleep
cancer survivors with self-reported sleep disturbance
largest improvements
improved
#3
Mindfulness Meditation (MM)
increase
self-reported sleep
cancer survivors with self-reported sleep disturbance
-
improved
#4
Sleep Hygiene Education (SHE)
increase
self-reported sleep
cancer survivors with self-reported sleep disturbance
-
improved
#5
sleep focused mind-body intervention (MBB)
decrease
Waking sAA levels
cancer survivors with sleep disturbance
-
attenuated
#6
Abstract

OBJECTIVE: The main aim of this exploratory study was to assess whether salivary α-amylase (sAA) and salivary cortisol levels would be positively modulated by sleep-focused mind-body interventions in female and male cancer survivors. METHODS: We conducted a randomized controlled trial in which 57 cancer survivors with self-reported sleep disturbance received either a Sleep Hygiene Education (SHE; n=18) control, or one of two experimental mind-body interventions, namely, Mind-Body Bridging (MBB; n=19) or Mindfulness Meditation (MM; n=20). Interventions were three sessions each conducted once per week for three consecutive weeks. Saliva cortisol and sAA were measured at baseline and 1 week after the last session. Participants also completed a sleep scale at the same time points when saliva was collected for biomarker measurement. RESULTS: Our study revealed that at post-intervention assessment, mean sAA levels upon awakening ("Waking" sample) declined in MBB compared with that of SHE. Mean Waking cortisol levels did not differ among treatment groups but declined slightly in SHE. Self-reported sleep improved across the three interventions at Post-assessment, with largest improvements in the MBB intervention. CONCLUSION: In this exploratory study, sleep focused mind-body intervention (MBB) attenuated Waking sAA levels, suggesting positive influences of a mind-body intervention on sympathetic activity in cancer survivors with sleep disturbance.

Medical Subject Headings (MeSH)
AdolescentAdultAgedBiomarkersDyssomniasFemaleHumansHydrocortisoneMaleMeditationMiddle AgedMind-Body TherapiesMindfulnessNeoplasmsPatient Education as TopicPsychophysiologySalivaSalivary alpha-AmylasesSelf-Help GroupsSurvivorsSympathetic Nervous SystemTreatment OutcomeWakefulnessYoung Adult
Study Links
Quality Scores
SafetyNot Assessed
Efficacy75/10
Quality80/10
Citation Metrics
Total Citations39
Citations/Year3.3
Relative Citation Ratio1.68
NIH Percentile69%
Research Impact Scores
APT Score0.75
Weight Score1.60
Normalized Score0.66
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