| 1. |
- Kanai, M, et al.
(author)
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- 2023
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swepub:Mat__t
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| 2. |
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| 3. |
- Santangelo, James S., et al.
(author)
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Global urban environmental change drives adaptation in white clover
- 2022
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In: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 375
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Journal article (peer-reviewed)abstract
- Urbanization transforms environments in ways that alter biological evolution. We examined whether urban environmental change drives parallel evolution by sampling 110,019 white clover plants from 6169 populations in 160 cities globally. Plants were assayed for a Mendelian antiherbivore defense that also affects tolerance to abiotic stressors. Urban-rural gradients were associated with the evolution of clines in defense in 47% of cities throughout the world. Variation in the strength of clines was explained by environmental changes in drought stress and vegetation cover that varied among cities. Sequencing 2074 genomes from 26 cities revealed that the evolution of urban-rural dines was best explained by adaptive evolution, but the degree of parallel adaptation varied among cities. Our results demonstrate that urbanization leads to adaptation at a global scale.
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| 4. |
- Anderson, Madeleine, et al.
(author)
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An investigation of the associations between stigma, self-compassion, and pain outcomes during treatment based on Acceptance and Commitment Therapy for chronic pain
- 2024
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In: Frontiers in Psychology. - : Frontiers Media S.A.. - 1664-1078. ; 15
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Journal article (peer-reviewed)abstract
- Introduction: Stigma adversely affects people with chronic pain. The qualities within self-compassion may be particularly useful for buffering the impact of stigma on people with pain. In the context of an Acceptance and Commitment Therapy-based (ACT) treatment for chronic pain, this study investigated the association between changes in stigma and self-compassion and pain outcomes, and the potential moderating role of self-compassion on the association between stigma and pain outcomes.Materials and methods: Five-hundred and nineteen patients completed standardized self-report questionnaires of stigma, self-compassion, psychological flexibility, pain intensity and interference, work and social adjustment, and depression symptoms at the start of an interdisciplinary ACT-based treatment for chronic pain. The same measures were completed at post-treatment (n = 431).Results: The results indicated that key pain outcomes and self-compassion significantly improved during treatment, but stigma did not. Changes in stigma and self-compassion were significantly negatively correlated and changes in these variables were associated with improvements in treatment outcomes. There were significant main effects of stigma and self-compassion for many of the pre- and post-treatment regression models when psychological flexibility was not controlled for, but self-compassion did not moderate the association between stigma and pain outcomes. Stigma remained significant when psychological flexibility variables were controlled for, while self-compassion did not.Discussion: The findings add to our conceptual understanding of the inter-relationships between stigma, self-compassion, and psychological flexibility and can contribute to treatment advancements to optimally target these variables.
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| 5. |
- Chisari, Claudia, et al.
(author)
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A Network Analysis of Selected Psychosocial Factors in Vulvodynia and Its Subtypes
- 2021
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In: Pain medicine. - : Oxford University Press. - 1526-2375 .- 1526-4637. ; 22:12, s. 2863-2875
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Journal article (peer-reviewed)abstract
- Objective Psychosocial factors are related to pain and sex-related outcomes in provoked vulvodynia and possibly in mixed and spontaneous vulvodynia. However, a broader behavioral framework, such as the psychological flexibility model, has received limited attention in this context. Recently, additional psychosocial variables have also emerged that appear relevant to vulvodynia, including perceived injustice, body-exposure anxiety during intercourse, and unmitigated sexual communion. The present study applied network analysis to explore relations between psychological flexibility, newly emerging psychosocial variables relevant to vulvodynia, and their associations with vulvodynia outcomes. The study also explored potential differences across vulvodynia subtypes.Design An online cross-sectional study of 349 participants with vulvodynia (112 provoked, 237 spontaneous/mixed) was carried out.Methods Participants completed self-report questionnaires, including questions on pain and sexual outcomes, depression, facets of psychological flexibility, body-exposure anxiety during intercourse, unmitigated sexual communion, and perceived injustice. Networks were computed for the total sample and for provoked and mixed/spontaneous vulvodynia subsamples.Results Perceived injustice, pain acceptance, and depression were “central” factors among the included variables, in all models. Psychological flexibility processes were relevant for all networks. Depression was more central in the network for mixed/spontaneous vulvodynia; body-exposure anxiety during intercourse was most central for the provoked subtype.Conclusions Among the included variables, perceived injustice, pain acceptance, depression, and psychological flexibility appear to be important in vulvodynia. As different factors are significant across subtypes, tailored treatment approaches are suggested.
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| 6. |
- Chisari, Claudia, et al.
(author)
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Acceptance and Commitment Therapy for women living with Vulvodynia : A single-case experimental design study of a treatment delivered online
- 2022
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In: Journal of Contextual Behavioral Science. - : Elsevier. - 2212-1447. ; 23, s. 15-30
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Journal article (peer-reviewed)abstract
- Introduction: Vulvodynia is a condition characterised by persistent vulval pain and includes particular impacts on sexual and emotional functioning. Acceptance and Commitment Therapy (ACT) has been successfully applied in persistent pain but has not been tested in this population. This single-case experimental design (SCED) study aimed to evaluate whether an online ACT programme improves clinical outcomes in women with Vulvodynia. We also evaluated whether the intervention led to changes in hypothesised processes of therapeutic change.Methods: This study applied a nonconcurrent multiple baseline SCED method to assess ACT in women with Vulvodynia. During baseline and treatment phases, participants completed daily self-report outcomes of pain severity and interference, sexual functioning and satisfaction, depression, and hypothesised process-variables: pain-acceptance, present-moment-awareness, committed-action, perceived injustice, and body-exposure anxiety during sexual activities. Full-length assessments of these variables were also completed before and after treatment. The intervention comprised a six-week online ACT programme, combined with a Vulvodynia-specific manual. Visual and statistical analyses were conducted.Results: Seven participants, mostly with mixed Vulvodynia, provided baseline and treatment phase data, and completed the intervention and diaries. Based on the visual inspection, and Tau and Tau-U values as effect sizes from the daily data, all participants showed moderate size improvements in two or more outcomes. However, participants had highly individual treatment effects. Limited improvement was found in depression. Pain acceptance, committed-action, and perceived injustice also demonstrated change for some participants.Discussion: The results suggest online ACT may improve pain and sexual outcomes for some women with Vulvodynia. Pain-acceptance, committed-action, and perceived injustice are highlighted as potential processes of change for some participants. In general, responses to treatment appear highly individual. Further application of the SCED approach to ACT for Vulvodynia is recommended.
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| 7. |
- Chisari, Claudia, et al.
(author)
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Psychosocial factors associated with pain and sexual function in women with Vulvodynia : A systematic review.
- 2021
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In: European Journal of Pain. - : John Wiley & Sons. - 1090-3801 .- 1532-2149. ; 25:1, s. 39-50
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Journal article (peer-reviewed)abstract
- BACKGROUND AND OBJECTIVE: Vulvodynia is a prevalent chronic vulval pain condition affecting 10%-28% of women, and significantly impacting their health and quality of life. It is currently poorly understood and biomedical treatments achieve only modest benefits for pain and sexual functioning. A wider psychosocial conceptualization of this condition may improve outcomes. There is currently no coherent understanding of how psychosocial factors may contribute to outcomes in Vulvodynia. The aim of this review is to identify and systematically review psychosocial factors associated with pain and sexual outcomes and to inform a psychosocial model of Vulvodynia.DATABASES AND DATA TREATMENT: Observational/experimental studies reporting on the association between psychosocial factors and pain/sexual outcomes in adult women with Vulvodynia were eligible. Two reviewers independently conducted eligibility screening, data extraction and quality assessment. Twenty-one studies were included, all focused on women with Provoked Vestibulodynia (PVD). Most of the studies were low-to-medium quality.RESULTS/CONCLUSION: A range of general/pain-related distress and avoidance processes, and sex/intimacy avoidance or engagement processes were significantly associated with pain, sexual functioning or sexual distress and sexual satisfaction, supporting the role of a psychosocial approach to PVD. Depression, anxiety, catastrophizing, pain-anxiety, pain acceptance, body-exposure anxiety, attention to sexual cues, partner hostility and solicitousness, self-efficacy and penetration cognitions are highlighted as potentially important treatment targets in PVD. Due to the limited data available, developing a psychosocial model was not possible. Directions for future research include examining the replicability and generalizability of the factors identified, exploring differences/similarities across Vulvodynia subsets and testing tailored theoretically based treatments.SIGNIFICANCE: The systematic review highlights the role of psychosocial factors associated with pain and sexual functioning in Vulvodynia. The review findings reveal that Vulvodynia presents both similar and unique cognitive, behavioural and interpersonal features compared to other chronic pain conditions. There may be important roles for negative sexual cues, body image-related factors during intercourse, partner factors, self-efficacy beliefs and penetration cognitions, in relation to pain and sexual functioning.
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| 8. |
- Chisari, Claudia, et al.
(author)
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The role of psychological flexibility, perceived injustice and body image in Vulvodynia : A longitudinal study
- 2022
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In: European Journal of Pain. - : John Wiley & Sons. - 1090-3801 .- 1532-2149. ; 26:1, s. 103-113
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Journal article (peer-reviewed)abstract
- Background Women with Vulvodynia experience pain, related impacts on sex and daily functioning, and depression. While psychosocial factors are associated with outcomes in Vulvodynia, longitudinal data are limited, especially in mixed/spontaneous Vulvodynia. Broad psychological models such as psychological flexibility (PF) and content-specific factors, such as body-exposure anxiety (BEA) and avoidance during sexual activities and perceived injustice, have not been adequately investigated in Vulvodynia. The aim of this study was to explore whether these factors assessed at baseline predict pain severity, pain interference, sexual functioning and satisfaction and depression 3 months later.Methods A longitudinal study of 349 women with Vulvodynia was conducted. Participants completed online self-report measures of pain-related and sexual outcomes, depression, BEA, perceived injustice and facets of PF (present moment awareness, pain acceptance, committed action) at baseline and after 3 months, overlapping with the Coronavirus disease 2019 (COVID-19) pandemic.Results Seventy percent of women responded at both assessments (n = 244). There were significant decreases in pain severity, pain interference, present moment awareness, committed action and a significant increase in depression at 3 months. All the baseline psychosocial factors significantly correlated with at least one outcome at 3 months. When adjusting for baseline outcome and demographics, committed action significantly positively predicted depression at 3 months and pain acceptance significantly positively predicted pain interference at 3 months.Conclusions Among women with Vulvodynia, pain acceptance and committed action are prospectively associated with pain interference and depression. The reliability and generalizability of these results needs to be established given the overlap with the COVID-19 pandemic. Future studies should investigate whether targeting these factors enhances outcomes in Vulvodynia.Significance This longitudinal study explored the role of PF, perceived injustice and body image during sexual activities in predicting pain severity, pain interference, sexual functioning, sexual satisfaction and depression in women with Vulvodynia. The study findings reveal that two facets of PF (committed action and pain acceptance) predicted pain interference and depression over time. It may be important to incorporate these processes in treatments developed for Vulvodynia.
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| 9. |
- Feliu-Soler, A, et al.
(author)
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Acceptance and Commitment Therapy (ACT) for chronic pain: : a narrative review
- 2018
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In: Journal of Pain Research. - 1178-7090. ; 11, s. 2145-2159
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Journal article (peer-reviewed)abstract
- It is well known that chronic pain is prevalent, complex to manage, and associated with high costs, in health care and society in general. Thanks to advances in new forms of cognitive behavioral therapy (known as third-wave CBT), currently clinicians and researchers have an empirically validated psychological treatment with increasing research support for the treatment of chronic pain. This treatment is called acceptance and commitment therapy (ACT). The main aim of this paper is to provide a narrative review that summarizes and integrates the current state of knowledge of ACT in the management of chronic pain as well as discuss current challenges and opportunities for progress. Based on the psychological flexibility model, ACT extends previous forms of CBT and integrates many CBT-related variables into six core therapeutic processes. ACT is a process-based therapy that fosters openness, awareness, and engagement through a wide range of methods, including exposure-based and experiential methods, metaphors, and values clarification. To our knowledge, there are three published systematic reviews and meta-analyses that support the effectiveness of ACT for chronic pain and many studies focused on specific processes derived from the psychological flexibility model. There is also promising support for the cost-effectiveness of ACT; however, the current evidence is still insufficient to establish firm conclusions about cost-effectiveness and the most efficient means of delivery. Additional well-designed economic evaluations are needed. Other research aims include delineating the neurobiological underpinnings of ACT, refining available outcome and process measures or develop new ones for ACT trials, and meeting the challenge of wide dissemination and implementation in real-world clinical practice.
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| 10. |
- Gilpin, Helen R, et al.
(author)
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Examining the association between group context effects and individual outcomes in an interdisciplinary group-based treatment for chronic pain based on acceptance and commitment therapy
- 2022
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In: British Journal of Pain. - : Sage Publications. - 2049-4637 .- 2049-4645. ; 16:4, s. 420-432
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Journal article (peer-reviewed)abstract
- ackground: Although cognitive-behavioural treatments for chronic pain are delivered in groups, there is little research investigating group effects in these treatments.Purpose: The aim of this study was to investigate associations between group composition variables at the start of treatment and individual outcomes following intensive interdisciplinary treatment for pain based on Acceptance and Commitment Therapy.Methods: This was a secondary analysis of routinely collected observational data. Five-hundred and sixteen patients completed a standard set of demographic, pain-related and psychosocial measures at pre- and post-treatment. Intracluster correlations (ICCs) were computed to examine the clustering of outcomes within groups and multilevel models explored the association between group composition variables and individual level outcomes.Results: The ICCs for pain intensity (0.11) and interference (0.09) suggested that multilevel models were warranted for these outcomes, while a multilevel model for post-treatment depression (ICC = 0.04) was not warranted. Group percentage of participants receiving disability benefits and group mean pain intensity at pre-treatment were significantly positively associated with individual level pain intensity at post-treatment, controlling for pre-treatment individual level pain intensity. Group mean pain intensity at pre-treatment was the only group variable that significantly predicted post-treatment pain interference at the individual level. Psychosocial group composition variables were not significantly associated with individual level outcomes.Conclusion: Given the limited predictive utility of group composition variables in the current study, future research should undertake direct assessment of group level therapeutic and countertherapeutic processes to advance understanding of who benefits from group treatments for pain and how. As the variance in outcomes accounted for by group clustering was relatively small and significant within groups variance remained, research is also needed to further understand individual level factors that influence cognitive-behavioural treatment outcomes for pain.
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| 11. |
- Hohenschurz-Schmidt, David, et al.
(author)
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Recommendations for the development, implementation, and reporting of control interventions in efficacy and mechanistic trials of physical, psychological, and self-management therapies : the CoPPS Statement
- 2023
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In: BMJ. British Medical Journal. - : BMJ Publishing Group Ltd. - 0959-8146 .- 0959-535X. ; 381, s. e072108-
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Journal article (peer-reviewed)abstract
- Control interventions (often called "sham," "placebo," or "attention controls") are essential for studying the efficacy or mechanism of physical, psychological, and self-management interventions in clinical trials. This article presents core recommendations for designing, conducting, and reporting control interventions to establish a quality standard in non-pharmacological intervention research. A framework of additional considerations supports researchers' decision making in this context. We also provide a reporting checklist for control interventions to enhance research transparency, usefulness, and rigour.
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| 12. |
- Hollyfield, Shakira, et al.
(author)
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An Observational Study of Outcomes Associated With Virtual Pain Management Programs Based on Acceptance and Commitment Therapy Implemented During the COVID-19 Pandemic
- 2023
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In: The Clinical Journal of Pain. - : Wolters Kluwer. - 0749-8047 .- 1536-5409. ; 39:10, s. 524-536
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Journal article (peer-reviewed)abstract
- Objective: In response to COVID-19, virtual, group-based interdisciplinary pain management programs (PMPs) were rapidly implemented. This included implementing different intensities and formats of virtual PMPs to address a range of patient needs and complexity. This observational study investigated outcomes associated with virtual high and low-intensity and pre-neuromodulation PMPs based on acceptance and commitment therapy as part of routine care during the pandemic.Methods: Depending on patients’ needs, participants completed a virtual high-intensity or low-intensity PMP, or a virtual PMP in preparation for neuromodulation, from June 2020 to June 2022. Participants completed standardized measures of pain intensity and interference, work and social adjustment, depression, and pain acceptance before and after treatment. Data from 2018 to 2019 for in-person residential (n=561), outpatient (n=123), and pre-neuromodulation (n=207) PMPs were also examined to provide a historical benchmark of performance.Results: The virtual high-intensity PMP (n=294) showed significant improvements in all variables, with small effects. There were significant improvements with small effects for pain interference, depression, and acceptance for the virtual pre-neuromodulation PMP (n=129). No statistically significant improvements were observed for the virtual low-intensity PMP (n=90). The improvements associated with prepandemic in-person PMPs were generally larger relative to the virtual PMPs of comparable intensity delivered during the pandemic.Discussion: These data provide preliminary support for the potential benefits of high, but not low, intensity virtual acceptance and commitment therapy-based PMPs, including in the context of neuromodulation. Research is needed to maximize the impact of virtual PMPs and match patients with the most appropriate delivery format.
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| 13. |
- Kilic, Aysenur, et al.
(author)
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A 12-month longitudinal study examining the shared and unique contributions of self-compassion and psychological inflexibility to distress and quality of life in people with Type 2 Diabetes
- 2022
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In: Journal of Psychosomatic Research. - : Elsevier. - 0022-3999 .- 1879-1360. ; 155
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Journal article (peer-reviewed)abstract
- Objectives: Self-compassion and psychological flexibility appear to benefit wellbeing and quality of life (QoL) in the general population and in people with long-term conditions like Type 2 Diabetes (T2D). However, both variables share similarities and their unique roles in relation to distress and QoL in people with diabetes over time are not clear.Design: This was a longitudinal study with online assessments of self-compassion, psychological inflexibility, distress (depression, anxiety, diabetes-distress), and QoL at baseline (T1) and six (T2) and 12 months (T3). Methods: In total, 173 UK adults with T2D completed baseline questionnaires; T2 and T3 follow-ups were completed by 82 and 52 participants, respectively. Correlations were conducted to understand the relationships between variables at each time point. Hierarchical regressions were conducted to understand the unique predictive role of baseline self-compassion and psychological inflexibility in relation to distress and QoL at T2 and T3, controlling for age and baseline distress and QoL.Results: There were large significant negative correlations between self-compassion and psychological inflexibility (r >-0.50), and both had significant large correlations with distress (r >-0.50) but not QoL across time points. Regressions indicated that psychological inflexibility uniquely predicted depression (T2) and anxiety symptoms (T2 and T3) and QoL (T3). Self-compassion did not uniquely predict any of the outcomes.Conclusions: Psychological inflexibility may play an important role in distress in T2D, but prospective studies with larger samples are needed to replicate these findings. Given the overlap between psychological inflexibility and self-compassion, treatments targeting either variable may be useful.
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| 14. |
- Kilic, Aysenur, et al.
(author)
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An online acceptance, commitment, and self-compassion based treatment to decrease psychological distress in people with type 2 diabetes : A feasibility randomised-controlled trial
- 2023
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In: Internet Interventions. - : Elsevier. - 2214-7829. ; 33
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Journal article (peer-reviewed)abstract
- Background and purposeThis study explored the feasibility and acceptability of conducting a larger trial of a self-guided, online self-compassion and acceptance and commitment therapy (ACT) focused treatment among people with type 2 diabetes (T2D) to decrease psychological distress.Materials and methodsThis study was a two-arm, parallel, feasibility randomised controlled trial with nested qualitative methods. UK adults with T2D were randomly (1:1) allocated to a five-week online self-compassion and ACT treatment or waitlist control. Information regarding recruitment, trial retention, and treatment completion was collected, and post-treatment semi-structured interviews were conducted to assess feasibility and acceptability. Self-report measures of psychological distress (depression, anxiety, diabetes distress) and potential treatment processes (self-compassion and psychological flexibility) were completed as secondary feasibility outcomes.ResultsFifty-five (60.44 %) out of 91 people who accessed the study link were eligible to participate. Of these, 33 eligible participants (60 %) were randomly assigned to treatment (n = 19) or control arms (waitlist; n = 14). While treatment completion was 47.37 %, trial retention rates were 39.39 % (5-week follow-up) and 21.2 % (9-week follow-up). Secondary feasibility outcomes of treatment effect estimates are difficult to interpret in light of low treatment completion and trial retention rates.ConclusionA larger trial of the self-guided, online self-compassion treatment to decrease psychological distress in people with T2D may be beneficial, but it has limited feasibility in its current form. Further efforts are needed to improve treatment acceptability of online self-compassion and ACT focused treatment and trial procedures.
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| 15. |
- Kioskli, Kitty, et al.
(author)
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Online Acceptance and Commitment Therapy for People with Painful Diabetic Neuropathy in the United Kingdom : A Single-Arm Feasibility Trial
- 2020
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In: Pain medicine. - : Oxford University Press (OUP). - 1526-2375 .- 1526-4637. ; 21:11, s. 2777-2788
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Journal article (peer-reviewed)abstract
- OBJECTIVE: This study aimed to assess the feasibility of online Acceptance and Commitment Therapy for painful diabetic neuropathy in the United Kingdom and to determine if a larger randomized controlled trial testing treatment efficacy is justified.METHODS: Participants with painful diabetic neuropathy were recruited online and from hospital services. This was a single-arm study in which all participants received online Acceptance and Commitment Therapy. Participants completed questionnaires at baseline and three months post-treatment. Primary feasibility outcomes were recruitment, retention, and treatment completion rates. Secondary outcomes were pre- to post-treatment effects on pain outcomes and psychological flexibility.RESULTS: Of 225 potentially eligible participants, 30 took part in this study. Regarding primary feasibility outcomes, the treatment completion and follow-up questionnaire completion rates were 40% and 100%, respectively. Generally, at baseline those who completed the treatment, compared with those who did not, had better daily functioning and higher psychological flexibility. With respect to secondary outcomes, results from the completers group showed clinically meaningful effects at post-treatment for 100% of participants for pain intensity and pain distress, 66.7% for depressive symptoms, 58.3% for functional impairment, 41.7% for cognitive fusion, 66.7% for committed action, 58.3% for self-as-context, and 41.7% for pain acceptance.CONCLUSIONS: This preliminary trial suggests feasibility of recruitment and follow-up questionnaire completion rates, supporting planning for a larger randomized controlled trial. However, treatment completion rates did not achieve the prespecified feasibility target. Changes to the treatment content and delivery may enhance the feasibility of online Acceptance and Commitment Therapy for people with painful diabetic neuropathy on a larger scale.
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| 16. |
- Kioskli, Kitty, et al.
(author)
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Psychosocial Factors in Painful Diabetic Neuropathy : A Systematic Review of Treatment Trials and Survey Studies
- 2019
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In: Pain medicine (Malden, Mass.). - : Oxford University Press. - 1526-2375 .- 1526-4637. ; 20:9, s. 1756-1773
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Journal article (peer-reviewed)abstract
- OBJECTIVE: Diabetes mellitus is associated with a number of complications that can adversely impact patients' quality of life. A common and often painful complication is painful diabetic neuropathy. The aims of this study were to systematically review and summarize evidence from studies of psychological treatments and psychosocial factors related to painful diabetic neuropathy and assess the methodological quality of these studies.METHODS: Electronic databases, related reviews, and associated reference lists were searched. Summaries of participants' data relating to the efficacy of psychological treatments and/or to associations between psychosocial factors and outcomes in painful diabetic neuropathy were extracted from the included studies. The methodological quality of included studies was assessed using two standardized quality assessment tools.RESULTS: From 2,921 potentially relevant titles identified, 27 studies were included in this systematic review. The evidence suggests that depression, anxiety, sleep, and quality of life are the most studied variables in relation to pain outcomes in painful diabetic neuropathy and are consistently associated with pain intensity. The magnitude of the associations ranged from small to large.CONCLUSIONS: Research into psychosocial factors in painful diabetic neuropathy is unexpectedly limited. The available evidence is inconsistent and leaves a number of questions unanswered, particularly with respect to causal associations between variables. The evidence reviewed indicates that depression, anxiety, low quality of life, and poor sleep are associated with pain in painful diabetic neuropathy. The disproportionate lack of research into psychological treatments for painful diabetic neuropathy represents a significant opportunity for future research.
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| 17. |
- Künstner, Axel, et al.
(author)
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Comparative genomics based on massive parallel transcriptome sequencing reveals patterns of substitution and selection across 10 bird species
- 2010
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In: Molecular Ecology. - 0962-1083 .- 1365-294X. ; 19:Suppl.1, s. 266-276
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Journal article (peer-reviewed)abstract
- Next-generation sequencing technology provides an attractive means to obtain largescale sequence data necessary for comparative genomic analysis. To analyse the patterns of mutation rate variation and selection intensity across the avian genome, we performed brain transcriptome sequencing using Roche 454 technology of 10 different non-model avian species. Contigs from de novo assemblies were aligned to the two available avian reference genomes, chicken and zebra finch. In total, we identified 6499 different genes across all 10 species, with ∼1000 genes found in each full run per species. We found evidence for a higher mutation rate of the Z chromosome than of autosomes (male-biased mutation) and a negative correlation between the neutral substitution rate (dS) and chromosome size. Analyses of the mean dN/dS ratio (ω) of genes across chromosomes supported the Hill-Robertson effect (the effect of selection at linked loci) and point at stochastic problems with x as an independent measure of selection. Overall, this study demonstrates the usefulness of next-generation sequencing for obtaining genomic resources for comparative genomic analysis of non-model organisms.
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| 18. |
- Lin, Jiaxi, et al.
(author)
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Acceptance and commitment therapy for chronic pain : protocol of a systematic review and individual participant data meta-analysis
- 2019
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In: Systematic Reviews. - : BioMed Central. - 2046-4053. ; 8
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Research review (peer-reviewed)abstract
- Background: Acceptance and commitment therapy (ACT) can be effective in treating chronic pain. Despite evidence supporting the effectiveness of ACT, uncertainties remain regarding which subgroups in the chronic pain population are likely to benefit most and least. This protocol describes the application for two meta-analytic approaches, one at the level of individual participant data and the other at the level of aggregated data, from randomized controlled trials of ACT for chronic pain (ACT-CP-MA). Methods: We will systematically conduct literature searches in CENTRAL, MEDLINE, EMBASE, PsycINFO, and trial registers. Two reviewers will independently select studies for inclusion and data extraction. ACT-CP-MA will include randomized controlled trials with ACT for chronic pain compared to control conditions for adults (>= 18 years) with chronic pain (>= 3 months). We will invite the authors of all eligible trials to share individual participant data. Outcomes will include standardized measures of pain interference, pain intensity, depression, anxiety, health-related quality of life, participants' rating of overall improvement, and ACT-related process variables. Using the Cochrane Collaboration's tool and GRADE, reviewers will independently check for risk of bias, quality of evidence, and strength of recommendations. In the individual participant data meta-analysis, we will use a one-step approach where participants are clustered with studies and data from all studies are modeled simultaneously. For analyses, we will use mixed-effects models. Additionally, we will employ a meta-analysis with aggregate data and compare the results of both meta-analyses. Discussion: This collaborative meta-analysis of individual participant data from randomized controlled trials of ACT for chronic pain versus control conditions will demonstrate how the known benefits of ACT for chronic pain vary across different subtypes of the chronic pain population. The results of the meta-analyses will be based on a comprehensive search of multiple databases and will help to inform future clinical trials and decision-making on the use of ACT in chronic pain and improve the quality, design, and reporting of future trials in this field.
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| 19. |
- McCracken, Lance M., 1962-, et al.
(author)
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Potential Misfortunes in 'Making Sense' : A Cross-Sectional Study in People with Chronic Pain
- 2023
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In: Journal of Pain. - : Elsevier. - 1526-5900 .- 1528-8447. ; 24:1, s. 157-166
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Journal article (peer-reviewed)abstract
- Making sense of one's circumstances is normally regarded as helpful, including in the context of chronic pain. However, sense-making may be associated with adverse impacts in daily functioning. To better understand the functions of sense-making, the objective of the current study was to develop, validate, and preliminarily examine a measure of potentially helpful and unhelpful forms of sense-making behavior in people seeking treatment for chronic pain. This measure is called the Sense Making Questionnaire (SMQ). Research participants included 451 adults consecutively attending a specialty interdisciplinary treatment for chronic pain. Data for this study derived from a standard set of measures participants completed prior to treatment. Exploratory Factor Analysis (EFA) produced a 3-factor solution based on 15 items, including Avoidance of Incoherence, Overthinking, and Functional Coherence. The first 2 of these factors and the total achieved adequate internal consistency. Construct validity of the SMQ scores was supported by significant correlations with measures of pain acceptance, committed action, cognitive fusion, and intolerance of uncertainty. The SMQ total score correlated significantly with pain interference, r = .23, depression, r = .41, and work and social adjustment, r = .30, all P < .001. In multiple regression analyses the total score also significantly predicted depression after age, gender, education, pain duration, pain intensity, and pain acceptance were statistically controlled, and it accounted for an additional 8.0% in explained variance. It appears that there is a distinction between literal coherence and functional coherence. In some situations, it may benefit people with chronic pain to shift focus from efforts to make literal sense of pain and instead to keep the focus on taking effective action even if this does not appear at first to make sense.Perspective: This study in people seeking treatment for chronic pain includes development of a measure of behavior patterns related to making sense in chronic pain. It shows that sometimes these behavior patterns can be ineffective, as they appear negatively associated with emotional, physical, and social functioning.(c) 2022 The Author(s). Published by Elsevier Inc. on behalf of United States Association for the Study of Pain, Inc. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
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| 20. |
- McCracken, Lance, 1962-, et al.
(author)
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The role of psychological flexibility in relation to suicidal thinking in chronic pain
- 2018
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In: European Journal of Pain. - : Wiley. - 1090-3801 .- 1532-2149. ; 22:10, s. 1774-1781
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Journal article (peer-reviewed)abstract
- Background: Suicidal thinking (ST) is common in people with chronic pain. It is relevant as it can be associated with suicidal attempts, and typically reflects significant suffering. While little is known about the psychological processes that contribute to ST, current psychological models, such as the Psychological Flexibility (PF) model, could help guide further investigation. This study investigates relations between ST and components of PF in chronic pain. Methods: Participants were 424 adults attending treatment for chronic pain in the UK. Included in measures administered before treatment were standardized measures of depression, pain, pain-related interference, andmeasures of PF, including acceptance, cognitive defusion, committed action, and self-as-context. An item from the measure of depression wasused to reflect ST. Results: A large proportion of the sample reported ST, 45.7%. ST wasuncorrelated with participant background characteristic, medications taken, or pain intensity. However, it was correlated with the presence of widespread pain, pain-related interference, and depression. Eachcomponent of PF was found to be significantly negatively associated with ST, as predicted. General acceptance correlated with ST at a level equal to that achieved by the depression score. In adjusted multivariate logistic regression general acceptance and committed action remainedsignificantly uniquely associated with it. Conclusion: This preliminary study suggests for the first time that components of PF are associated with part of a pattern of suicidal behaviour in people with chronic pain. They may be relevant for reducing avoidance in general and providing more positive behavioural options. Significance: This study provides evidence that components of psychological flexibility are associated with a reduced frequency of suicidal thinking in people with chronic pain. Treatments targeting psychological flexibility may help mitigate the impact of chronic pain on suicidal thinking.
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| 21. |
- Scott, Whitney, et al.
(author)
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A qualitative study of the experience and impact of neuropathic pain in people living with HIV
- 2020
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In: Pain. - : Ovid Technologies (Wolters Kluwer Health). - 0304-3959 .- 1872-6623. ; 161:5, s. 970-978
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Journal article (peer-reviewed)abstract
- Painful distal symmetrical polyneuropathy is common in HIV and is associated with reduced quality of life. Research has not explored the experience of neuropathic pain in people with HIV from a person-centred perspective. Therefore, a qualitative interview study was conducted to more deeply understand the experience and impact of neuropathic pain in this population. Semi-structured interviews were conducted with 26 people with HIV and peripheral neuropathic pain symptoms. Interviews explored the impact of pain and participants' pain management strategies. Interviews were transcribed verbatim and analysed using thematic analysis. Four themes and 11 subthemes were identified. Theme one reflects the complex characterisation of neuropathic pain, including the perceived unusual nature of this pain and diagnostic uncertainty. Theme two centred on the interconnected impacts of pain on mood and functioning and includes how pain disrupts relationships and threatens social inclusion. Theme three reflects the struggle for pain relief, including participants' attempts to 'exhaust all options' and limited success in finding lasting relief. The final theme describes how pain management is complicated by living with HIV; this theme includes the influence of HIV stigma on pain communication and pain as an unwanted reminder of HIV. These data support the relevance of investigating and targeting psychosocial factors to manage neuropathic pain in HIV.
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| 22. |
- Scott, Whitney, et al.
(author)
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Acceptability of psychologically-based pain management and online delivery for people living with HIV and chronic neuropathic pain : a qualitative study
- 2021
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In: Scandinavian Journal of Pain. - : Walter de Gruyter. - 1877-8860 .- 1877-8879. ; 21:2, s. 296-307
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Journal article (peer-reviewed)abstract
- Objectives: Chronic neuropathic pain is common in people living with HIV. Psychological treatments can improve quality of life for people with chronic pain in general, and online delivery can increase access to these treatments. However, the acceptability of psychological treatment and online delivery have not been investigated in-depth in people living with HIV and chronic neuropathic pain. Therefore, a qualitative study was undertaken to explore views about a psychological treatment for pain management in this population and to investigate the acceptability of online treatment delivery.Methods: Qualitative interviews were conducted and analysed using inductive thematic analysis, adopting a critical realist perspective. Twenty-six people living with HIV and chronic neuropathic pain completed semi-structured interviews. Their views about a psychological treatment for pain management and online delivery were explored in-depth.Results: Three themes and 12 subthemes were identified. Theme one represents a desire for a broader approach to pain management, including not wanting to take more pills and having multidimensional goals that were not just focussed on pain relief. Theme two includes barriers to online psychologically-based pain management, including concerns about using the Internet and confidentiality. Theme three describes treatment facilitators, including accessibility, therapist support, social connection, and experiencing success.Conclusions: A psychological treatment for chronic neuropathic pain management appears acceptable for people living with HIV. Therapist-supported online delivery of cognitive-behavioural pain management may be acceptable for people living with HIV given appropriate development of the treatment to address identified barriers to engagement. These data can inform developments to enhance engagement in online psychologically-informed pain management in people living with HIV and more broadly in remote delivery of psychological treatments.
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| 23. |
- Scott, Whitney, et al.
(author)
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Feasibility randomized-controlled trial of online acceptance and commitment therapy for painful peripheral neuropathy in people living with HIV : The OPEN study
- 2021
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In: European Journal of Pain. - : John Wiley & Sons. - 1090-3801 .- 1532-2149. ; 25:7, s. 1493-1507
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Journal article (peer-reviewed)abstract
- Background Neuropathic pain negatively affects quality of life among people living with HIV (PLWH). This study examined the feasibility of conducting a full-scale randomized-controlled trial of online acceptance and commitment therapy ("ACT OPEN") for neuropathic pain in PLWH. Methods Using a parallel-groups design, thirty-eight participants were randomized to ACT OPEN or a waitlist control (2:1). Participants completed standard self-report outcome measures at baseline, and two- and five-months post-randomization. Participants were aware of their allocation, but assessment was blinded. Results Twenty-five participants were randomized to ACT OPEN and 13 to the control (of 133 referrals). ACT OPEN completion was 69% and two-month trial retention was 82%. Treatment credibility and satisfaction scores for ACT OPEN were comparable to scores reported in previous trials of cognitive-behavioural treatments for pain. Four adverse events were reported during the study, including one serious adverse event; all of these were unrelated to the research procedures. Small to moderate effects and 95% confidence intervals suggest that the true effect may favour ACT OPEN for improvements in pain intensity/interference and depression. Conclusions A full-scale RCT of online ACT for pain management in PLWH may be feasible with refinements to trial design to facilitate recruitment. Significance Research on pain management in people living with HIV has primarily focused on pharmacological treatments with limited success. This is the first study to show the potential feasibility of a psychological treatment based on acceptance and commitment therapy delivered online and tailored for pain management in people with HIV ("ACT OPEN"). ACT OPEN may be a promising treatment in this population and further evaluation in a full-scale randomized-controlled trial appears warranted.
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| 24. |
- Scott, Whitney, et al.
(author)
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Measuring Stigma in Chronic Pain : Preliminary Investigation of Instrument Psychometrics, Correlates, and Magnitude of Change in a Prospective Cohort Attending Interdisciplinary Treatment
- 2019
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In: Journal of Pain. - : Elsevier BV. - 1526-5900 .- 1528-8447. ; 20:10, s. 1164-1175
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Journal article (peer-reviewed)abstract
- Chronic pain is a potentially stigmatizing condition. However, stigma has received limited empirical investigation in people with chronic pain. Therefore, we examined the psychometric properties of a self-report questionnaire of stigma in people with chronic pain attending interdisciplinary treatment. Secondarily, we undertook an exploratory examination of the magnitude of change in stigma associated with interdisciplinary treatment in a prospective observational cohort. Participants attending interdisciplinary treatment based on acceptance and commitment therapy completed the Stigma Scale for Chronic Illness 8-item version (SSCI-8; previously developed and validated in neurological samples), and measures of perceived injustice, pain acceptance, and standard pain outcomes before (n = 300) and after treatment (n = 247). A unidimensional factor structure and good internal consistency were found for the SSCI-8. Total SSCI-8 scores were correlated with pain intensity, indices of functioning, and depression in bivariate analyses. Stigma scores were uniquely associated with functioning and depression in multiple regression analyses controlling for demographic factors, pain intensity, pain acceptance, and perceived injustice at baseline. SSCI-8 total scores did not significantly improve after treatment, although an exploratory subscale analysis showed a small improvement on internalized stigma. In contrast, scores on perceived injustice, pain acceptance, and pain outcomes improved significantly. Taken together, these data support the reliability and validity of the SSCI-8 for use in samples with chronic pain. Further research is needed optimize interventions to target stigma at both the individual and societal levels. PERSPECTIVE: This study supports the use of the SSCI-8 to measure stigma in chronic pain. Stigma is uniquely associated with worse depression and pain-related disability. Research is needed to identify how to best target pain-related stigma from individual and societal perspectives.
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| 25. |
- Scott, Whitney, et al.
(author)
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Psychosocial factors associated with persistent pain in people with HIV: A systematic review with meta-analysis
- 2018
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In: Pain. - 0304-3959 .- 1872-6623.
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Journal article (peer-reviewed)abstract
- Chronic pain remains a prevalent and disabling problem for people living with HIV in the current antiretroviral treatment era. Psychosocial treatments may have promise for managing the impact of this pain. However, research is needed to identify psychosocial processes to target through such treatments. The current systematic review and meta-analysis examined the evidence for psychosocial factors associated with pain, disability, and quality of life in people living with HIV and persistent pain. Observational and experimental studies reporting on the association between one or more psychosocial factors and one or more pain-related variables in an adult sample of people living with HIV and pain were eligible. Two reviewers independently conducted eligibility screening, data extraction, and quality assessment. Forty-six studies were included in the review and 37 of these provided data for meta-analyses (12,493 participants). "Some" or "moderate" evidence supported an association between pain outcomes in people with HIV and the following psychosocial factors: depression, psychological distress, posttraumatic stress, drug abuse, sleep disturbance, reduced antiretroviral adherence, health care use, missed HIV clinic visits, unemployment, and protective psychological factors. Surprisingly, few studies examined protective psychological factors or social processes, such as stigma. There were few high-quality studies. These findings can inform future research and psychosocial treatment development in this area. Greater theoretical and empirical focus is needed to examine the role of protective factors and social processes on pain outcomes in this context. The review protocol was registered with PROSPERO (CRD42016036329).
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