Arndt Büssing

Effects of Yoga Interventions on Pain and Pain-Associated Disability: A Meta-Analysis

UNLABELLED We searched databases for controlled clinical studies, and performed a meta-analysis on the effectiveness of yoga interventions on pain and associated disability. Five randomized studies reported single-blinding and had a higher methodological quality; 7 studies were randomized but not blinded and had moderate quality; and 4 nonrandomized studies had low quality. In 6 studies, yoga was used to treat patients with back pain; in 2 studies to treat rheumatoid arthritis; in 2 studies to treat patients with headache/migraine; and 6 studies enrolled individuals for other indications. All studies reported positive effects in favor of the yoga interventions. With respect to pain, a random effect meta-analysis estimated the overall treatment effect at SMD = -.74 (CI: -.97; -.52, P < .0001), and an overall treatment effect at SMD = -.79 (CI: -1.02; -.56, P < .0001) for pain-related disability. Despite some limitations, there is evidence that yoga may be useful for several pain-associated disorders. Moreover, there are hints that even short-term interventions might be effective. Nevertheless, large-scale further studies have to identify which patients may benefit from the respective interventions. PERSPECTIVE This meta-analysis suggests that yoga is a useful supplementary approach with moderate effect sizes on pain and associated disability.

Induction of apoptosis in human lymphocytes treated with Viscum album L. is mediated by the mistletoe lectins.

Viscum album L. (VAL) is a phytopreparation used in adjuvant cancer therapy with both immunostimulatory and DNA stabilizing properties at low drug concentrations and cytostatic/cytotoxic properties at higher concentrations. The present work examines the cytotoxic effects of VAL extracts produced from mistletoes grown on different host trees and of purified toxic proteins from VAL, such as the D-galactose-specific lectin I (ML I), the N-acetyl-D-galactosamine-specific ML II and ML III, and crude viscotoxins towards cultured human lymphocytes. The decrease in the number of cultured lymphocytes and blast cells treated with whole plant extracts from VAL was host tree-specific. Nevertheless, there was no close correlation to the content of MLs or viscotoxins. Using the purified proteins, it became obvious that the cell killing was mediated by the induction of apoptosis, as measured by the appearance of a hypodiploid DNA peak using flow cytometry. ML III was the most effective to induce apoptosis, followed by ML II and ML I, while the viscotoxins and oligosaccharides from VAL did not. By measuring the surface expression of IL-2R alpha chains, transferrin receptors and APO-1/Fas molecules on non-apoptotic T cells, no significant changes were observed at low ML concentrations (1 ng/ml), but their decrease at higher ones. Our findings suggest that there might be at least two different ways of cell killing operative in VAL-mediated cytotoxicity: (a) the typical apoptotic cell death with the appearance of hypo-diploid nuclei, and (b) a direct or indirect killing by damaging the cell membrane with subsequent influx of Ca2+ and of the DNA intercalating dye propidium iodide and cell shrinkage. These effects might not be exclusive, as they probably occur simultaneously.

Effects of yoga on mental and physical health: a short summary of reviews.

This report summarizes the current evidence on the effects of yoga interventions on various components of mental and physical health, by focussing on the evidence described in review articles. Collectively, these reviews suggest a number of areas where yoga may well be beneficial, but more research is required for virtually all of them to firmly establish such benefits. The heterogeneity among interventions and conditions studied has hampered the use of meta-analysis as an appropriate tool for summarizing the current literature. Nevertheless, there are some meta-analyses which indicate beneficial effects of yoga interventions, and there are several randomized clinical trials (RCTs) of relatively high quality indicating beneficial effects of yoga for pain-associated disability and mental health. Yoga may well be effective as a supportive adjunct to mitigate some medical conditions, but not yet a proven stand-alone, curative treatment. Larger-scale and more rigorous research with higher methodological quality and adequate control interventions is highly encouraged because yoga may have potential to be implemented as a beneficial supportive/adjunct treatment that is relatively cost-effective, may be practiced at least in part as a self-care behavioral treatment, provides a life-long behavioural skill, enhances self-efficacy and self-confidence and is often associated with additional positive side effects.

Engagement of patients in religious and spiritual practices: Confirmatory results with the SpREUK-P 1.1 questionnaire as a tool of quality of life research

BackgroundQuality of life is a multidimensional construct composed of functional, physical, emotional, social and spiritual well-being. In order to examine how patients with severe diseases view the impact of spirituality and religiosity on their health and how they cope with illness, we have developed the SpREUK questionnaire. We deliberately avoided the intermingling of attitudes, convictions and practices, and thus addressed the distinct forms and frequencies of spiritual/religious practices in an additional manual, the SpREUK-P questionnaire.MethodsThe SpREUK-P was designed to differentiate spiritual, religious, existentialistic and philosophical practices. It was tested in a sample of 354 German subjects (71% women; 49.0 ± 12.5 years). Half of them were healthy controls, while among the patients cancer was diagnosed in 54%, multiple sclerosis in 22%, and other chronic diseases in 23%. Reliability and factor analysis of the inventory were performed according to the standard procedures.ResultsWe confirmed the structure and consistency of the previously described 18-item SpREUK-P manual and improved the quality of the current construct by adding several new items. The new 25-item SpREUK-P 1.1 (Cronbachs alpha = 0.8517) has the following scales: (1) conventional religious practice (CRP), (2) existentialistic practice (ExP), (3) unconventional spiritual practice (USP), (4) nature/environment-oriented practice (NoP), and (5) humanistic practice (HuP). Among the tested individuals, the highest engagement scores were found for HuP and NoP, while the lowest were found for the USP. Women had significantly higher scores for ExP than male patients. With respect to age, the engagement in CRP increases with increasing age, while the engagement in a HuP decreased. Individuals with a Christian orientation and with a religious and spiritual attitude had the highest engagement scores for CRP, while the engagement in an USP was high with respect to a spiritual attitude. Variance analyses confirmed that the SpR attitude and religious affiliation are the main relevant covariates for CRP and ExP, while for the USP the SpR attitude and the educational level are of significance, but not religious affiliation. Patients with multiple sclerosis overall had the lowest engagement scores for all five forms of SpR practice, while it is remarkable that cancer patients had lower scores for HuP and USP than healthy subjects.ConclusionThe current re-evaluation of the SpREUK-P questionnaire (Version 1.1) indicates that it is a reliable, valid measure of five distinct forms of spiritual, religious and philosophical practice that may be especially useful for assessing the role of spirituality and religiosity in health related research. An advantage of our instruments is the clear-cut differentiation between convictions and attitudes on the one hand, and the expression of these attitudes in a concrete engagement on the other hand.

Mindfulness-Based Stress Reduction for Integrative Cancer Care – a Summary of Evidence

This paper provides a comprehensive overview of the relevant existing evidence, and critically appraises the use of mindfulness-based stress reduction (MBSR) in cancer care. Furthermore, a meta-analysis was conducted in order to investigate the effect of MBSR on quality of life (QoL), mood, and distress. Besides 6 reviews (5 systematic, 1 meta-analytic) which are reported separately, a total of 19 original research papers fully met the inclusion criteria for the systematic review. The 19 original papers consisted of 5 randomised controlled trials (RCTs), 4 non-randomised controlled trials (NRCTs), 9 observational studies (OS) and 1 two-arm observational study. The included outcome measures were QoL, mood, and distress. Cohen’s effect size d was computed for each category. Estimating the effect on QoL, a total of n = 248 patients out of 6 studies was included and the overall effect size was 0.29 (95% confidence interval (CI) 0.17–0.40; p ≤ 0.00005). Calculating the effect on mood, a total of n = 411 patients out of ten studies were included, and the overall effect size was 0.42 (95% CI 0.26–0.58; p < 0.0001). Reduction in distress revealed an overall effect size of 0.58 (95% CI 0.45–0.72; p < 0.0001; n = 587 patients out of 15 studies). MBSR programmes can improve QoL and mood, and reduce distress in cancer patients. However, there is an urgent need for more high quality RCTs implementing adequate controls, longer follow-up periods, sufficient samples sizes, clear descriptions of patients’ psychological profiles, and the accompanying utilisation of qualitative measures.

Differences in the apoptosis-inducing properties of Viscum album L. extracts.

Viscum albumL.(mistletoe) extracts are widely used in adjuvant cancer therapy. In contrast to purified components, such as mistletoe lectins and viscotoxins, whole plant extracts of mistletoe resulted in DNA stabilization in cyclophosphamide- treated lymphocytes but also provided cytotoxicity in tumour cells and lymphocytes.The killing capacities of mistletoe extracts were host tree-specific and not correlated with mistletoe lectin or viscotoxin content. In human lymphocytes, only mistletoe lectins induced a pathway of apoptotic killing. Within 72 h, the lectin B chains also Increased the number of lymphocytes undergoing apoptosis. This finding suggests that inhibition of protein synthesis by the A chain of the hololectin may accelerate a receptor-mediated killing pathway induced by the B chains. An unexpected finding was related to the mistletoe-mediated killing, which was more effective against CD8+T cells with an activated phenotype than CD19+ B cells and CD4+T cells. In vitro treatment of human neutrophils with mistletoe resulted in a slight decrease of phagocytosis and burst activity.The observed dose-dependent occurrence of two neutrophil subsets with different burst activities indicates differences in their susceptibility to mistletoe and suggests the implication of an induction of the apoptotic killing pathway.

Survival of cancer patients treated with mistletoe extract (Iscador): a systematic literature review.

BackgroundIn Europe, extracts from Viscum album (VA-E), the European white-berry mistletoe, are widely used to treat patients with cancer.MethodsWe searched several databases such as Cochrane, EMBASE, NCCAM, NLM, DIMDI, CAMbase, and Medline. Inclusion criteria were controlled clinical studies on parameters associated with survival in cancer patients treated with Iscador. Outcome data were extracted as they were given in the publication, and expressed as hazard ratios (HR), their logarithm, and the respective standard errors using standard formulas.ResultsWe found 49 publications on the clinical effects of Iscador usage on survival of cancer patients which met our criteria. Among them, 41 studies and strata provided enough data to extract hazard ratios (HR) and their standard errors (Iscador versus no extra treatment). The majority of studies reported positive effects in favour of the Iscador application. Heterogeneity of study results was moderate (I2 = 38.3%, p < 0.0001). The funnel plots were considerably skewed, indicating a publication bias, a notion which is corroborated by statistical means (AC = -1.3, CI: -1.9 to -0.6, p <= 0.0001). A random effect meta-analysis estimated the overall hazard ratio at HR = 0.59 (CI: 0.53 to 0.66, p < 0.0001). Randomized studies showed less effects than non-randomized studies (ratio of HRs: 1.24, CI: 0.79 to 1.92, p = 0.35), and matched-pair studies gave significantly better results than others (ratio of HRs: 0.33; CI: 0.17 to 0.65, p = 0.0012).ConclusionsPooled analysis of clinical studies suggests that adjuvant treatment of cancer patients with the mistletoe extract Iscador is associated with a better survival. Despite obvious limitations, and strong hints for a publication bias which limits the evidence found in this meta-analysis, one can not ignore the fact that studies with positive effects of VA-E on survival of cancer patients are accumulating. Future studies evaluating the effects of Iscador should focus on a transparent design and description of endpoints in order to provide greater insight into a treatment often being depreciated as ineffective, but highly valued by cancer patients.

Aspects of spirituality in adolescents

This paper analyses which aspects of spirituality are valued by adolescents, and how they are interconnected with youths’ life satisfaction and ‘self‐centeredness’. The participants were 254 adolescents (11th grade) of four different high schools from west Germany. After re‐validation of the 6‐factorial student’s version of the ASP questionnaire (ASP‐S, Cronbach’s alpha = .90), we found that they appreciated most Conscious interactions, Compassion / Generosity and Aspiring for Beauty / Wisdom, while particularly Religious orientation / Prayer (Trust in God), esoteric Transcendence conviction, or Quest orientation were of lower relevance. The importance of these aspects of spirituality is known to increase with higher age. The correlation pattern between aspects of spirituality and life satisfaction dimensions differed remarkably between female and male adolescents. In particular Conscious interactions correlated with future prospects in females, while in males it correlated much better with family life and school situation. It became obvious that the non‐formal aspects of spirituality in terms of relational consciousness are still vital, particularly secular humanism (i.e. Conscious interactions, Compassion / Generosity). These findings may have implications for religious educational programmes.

Yoga for Chronic Neck Pain: A Pilot Randomized Controlled Clinical Trial

UNLABELLED Yoga has been found effective in the treatment of chronic low back pain. We aimed to evaluate the effectiveness of Iyengar yoga in chronic neck pain by means of a randomized clinical trial. Seventy-seven patients (aged 47.9 ± 7.9, 67 female) with chronic neck pain who scored >40 mm on a 100-mm visual analog scale (VAS) were randomized to a 9-week Iyengar yoga program with weekly 90-minute classes (n = 38) or to a self-care/exercise program (n = 38). Patients were examined at baseline and after 4 and 10 weeks. The primary outcome measure was change of mean pain at rest (VAS) from baseline to week 10. Secondary outcomes included pain at motion, functional disability, quality of life (QOL), and psychological outcomes. Twelve patients in the yoga group and 11 patients in the self-care/exercise group were lost to follow-up, with higher study nonadherence in the self-care group (5 versus 10 patients). Mean pain at rest was reduced from 44.3 ± 20.1 to 13.0 ± 11.6 at week 10 by yoga and from 41.9 ± 21.9 to 34.4 ± 21.1 by self-care/exercise (group difference: -20.1, 95% confidence interval: -30.0, -10.1; P < .001). Pain at motion was reduced from 53.4 ± 18.5 to 22.4 ± 18.7 at week 10 by yoga and from 49.4 ± 22.8 to 39.9 ± 21.5 by self-care/exercise (group difference: -18.7, 95% confidence interval: -29.3, -8.1; P < .001). Significant treatment effects of yoga were also found for pain-related apprehension, disability, QOL, and psychological outcomes. Sensitivity analyses suggested minimal influence of dropout rates. Both programs were well tolerated. In this preliminary trial, yoga appears to be an effective treatment in chronic neck pain with possible additional effects on psychological well-being and QOL. The effectiveness of yoga in chronic neck pain should be further tested by comparative effectiveness studies with longer observation periods. PERSPECTIVE This article presents the results of a randomized controlled trial on the clinical effects of a 9-week yoga program or self-care exercise in patients with chronic neck pain. Yoga led to superior pain relief and functional improvements and might be a useful treatment option for chronic neck pain.

Conscious Presence and Self Control as a measure of situational awareness in soldiers - A validation study.

BackgroundThe concept of `mindfulness´ was operationalized primarily for patients with chronic stressors, while it is rarely used in reference to soldiers. We intended to validate a modified instrument on the basis of the Freiburg Mindfulness Inventory (FMI) to measure soldiers’ situational awareness (“mindfulness”) in stressful situations/missions. The instrument we will explore in this paper is termed the Conscious Presence and Self Control (CPSC) scale.MethodsThe CPSC and further instruments, i.e., Perceived Stress Scale (PSS), stressful military experiences (PCL-M), life satisfaction (BMLSS), Positive Life Construction (ePLC), and self-perceived health affections (VAS), were administered to 281 German soldiers. The soldiers were mainly exposed to explosive ordnance, military police, medical service, and patients with posttraumatic stress disorders.ResultsThe 10-item CPSC scale exhibited a one-factorial structure and showed a good internal consistence (Cronbach´s alpha = .86); there were neither ceiling nor bottom effects. The CPSC scores correlated moderately with Positive Life Construction and life satisfaction, and negatively with perceived stress and health affections. Regression analyses indicated that posttraumatic stress disorder symptoms (negative), and the development of effective strategies to deal with disturbing pictures and experiences (positive) were the best predictor of soldiers´ CPSC scores. Soldiers with health affections exhibiting impact upon their daily life had significantly lower CPSC scores than those without impairment (F=8.1; p < .0001).ConclusionsAs core conceptualizations of `mindfulness´ are not necessarily discussed in a military context, the FMI was adopted for military personnel populations, while its two factorial structure with the sub-constructs `acceptance´ and `presence´ was retained. The resulting 10-item CPSC scale had good internal consistence, sound associations with measures of health affections and life satisfaction, and thus can be used as a short and rapid measure in pre-post mission and interventional studies.