Virtual reality-guided mindfulness for chronic pain in cancer survivors: protocol for the virtual mind study-a single-group feasibility trial.

Background: Chronic cancer-related pain (CRP) can have a significant negative impact on quality of life. Mindfulness is hypothesized to mitigate chronic CRP by regulating both physical and emotional resistance to pain. In recent years, there has been interest in the use of virtual reality (VR) to deliver mindfulness meditation. VR provides an immersive and engaging environment, which may enhance one's focused attention to present-moment experiences, potentially making mindfulness less effortful and more efficacious for individuals with chronic pain. There has been little research in this area for people with a history of cancer. Objective: The aim of this mixed methods study is to evaluate the feasibility of a VR-guided mindfulness (VRGM) intervention offered to adult cancer survivors with chronic CRP. Methods: This mixed methods feasibility study will employ a single-arm, pretest-posttest design with semistructured interviews. In total, 15 cancer survivors will be enrolled in a 6-week home-based intervention that consists of 10-15 min of daily VRGM practice. The primary outcome is feasibility as assessed by accrual rates, retention in the study, intervention adherence, questionnaire completion, and side effect rates. Participants will be assessed on psychosocial outcome measures (i.e., pain, sleep, depressive and anxiety symptoms, fatigue, quality of life, and mindfulness) before and after the intervention, and 6 weeks post intervention (follow-up). Changes in pain will be described in relation to levels of immersion and presence in the virtual environment, trait mindfulness, and amount of VRGM practice. Qualitative information will provide subjective detail on participants' experience with VRGM to complement quantitative data. This study has been approved by the Health Research Ethics Board of Alberta Cancer Committee (HREBA.CC-20-0411). Conclusions: This novel intervention provides a potential alternative treatment to pharmacological pain management. Results from this study may inform future larger VGRM trials for chronic CRP to help reduce suffering in people with cancer. Study findings will be disseminated through open access publications, traditional conference presentations, professional cancer organizations, and social media platforms.

Associations Between Health Behaviors, Gastrointestinal Symptoms, and Gut Microbiota in a Cross-Sectional Sample of Cancer Survivors: Secondary Analysis from the Chemo-Gut Study.

BACKGROUND: Health behaviors, such as diet and exercise, are actions individuals take that can potentially impact gastrointestinal (GI) symptoms and the gut microbiota. Little is known about how health behaviors impact GI symptoms and the gut microbiota after anti-cancer therapies. METHODS: This is a secondary analysis of a cross-sectional study that investigated relationships between GI symptoms, gut microbiota, and patient-reported outcomes in adult cancer survivors. Gut microbiota was assessed from stool samples using 16 S rRNA gene sequencing. GI symptoms and health behaviors were measured via self-report. Descriptive statistics, multiple regression, and correlation analyses are reported. RESULTS: A total of 334 cancer survivors participated, and a subsample of 17 provided stool samples. Most survivors rated their diet as moderately healthy (55.7%) and reported engaging in low intensity exercise (53.9%) for ≤5 h/week (69.1%). Antibiotic use was associated with more belly pain, constipation, and diarrhea (P < .05). Survivors consuming a healthier diet had fewer symptoms of belly pain (P = .03), gas/bloating (P = .01), while higher protein consumption was associated with less belly pain (P = .03). Better diet health was positively correlated with Lachnospiraceae abundance, and negatively with Bacteroides abundance (P < .05). Greater exercise frequency positively correlated with abundance of Lachnospiraceae, Faecalibacterium, Bacteroides, Anaerostipes, Alistipes, and Subdoligranulum (P < .05). CONCLUSION: Results provide evidence for associations between antibiotic use, probiotic use, dietary health behaviors, and GI symptoms. Diet and exercise behaviors are related to certain types of bacteria, but the direction of causality is unknown. Dietary-based interventions may be optimally suited to address survivors' GI symptoms by influencing the gut microbiota. Larger trials are needed.

People With Cancer Experience Worse Psychosocial and Financial Consequences of COVID-19 Compared With Other Chronic Disease Populations: Findings From the International COVID-19 Awareness and Response Evaluation Survey Study.

PURPOSE: The COVID-19 pandemic is likely to have profound psychosocial impacts across the globe. In this analysis of the International COVID-19 Awareness and Response Evaluation (iCARE) survey study, we comparatively investigated the psychosocial effects of COVID-19 on individuals with cancer and people with other chronic illness. METHODS: iCARE study respondents were divided into two groups on the basis of self-reported health status: (1) active/current cancer (with or without any other chronic condition: heart disease, lung disease, hypertension, diabetes, severe obesity, immunity disease, and depressive or anxiety disorder); and (2) other chronic condition, but not cancer. Linear regressions were conducted to evaluate the associations between health status and outcomes. RESULTS: Worldwide, 18,154 iCARE study respondents (mean age, 50.8 years) from 175 countries were included in the analysis. Among them, 3.8% (n = 677) identified as having active/current cancer and 96.2% (n = 17,477) identified as having other chronic condition. Multivariate analyses showed significant associations between having cancer and declined mental (ß = .364; P < .0001) and physical (ß = .317; P < .0001) health since the start of the COVID-19 pandemic, relative to those with other chronic illness. Moreover, individuals with cancer demonstrated a higher likelihood of reporting maladaptive coping mechanisms such as increased alcohol use (ß = .457; P < .0001) and financial hardships such as not paying rent/mortgage (ß = .476; P < .0001), compared with people with other chronic illness. CONCLUSION: Individuals with cancer worldwide tended to have worse psychosocial and financial challenges during the COVID-19 pandemic, compared with other chronic disease populations. Clinicians need to be aware of the importance of attending to the specific mental health needs of individuals with cancer during and after COVID-19-related restrictions.

"A Hippo Out of Water": A Qualitative Inquiry of How Cancer Survivors' Experienced In-Person and Remote-Delivered Mind-Body Therapies.

Background: Mind-body therapies (MBTs) are an effective treatment option for people living with and surviving from cancer to help manage unwanted physical and psychological symptoms and side-effects related to treatment and the illness itself. Many of these structured MBTs, such as Mindfulness Based Cancer Recovery (MBCR) and tai chi/qigong (TCQ) programs are common; however, COVID-19 caused most research intervention trials and clinical programs to halt completely, or rapidly adapt an online modality. The Mindfulness and Tai Chi for Cancer Health (MATCH) study, a large-scale study that compared MBCR to a structured TCQ program for treating psychological and physical health outcomes for cancer survivors, adapted to an online, Zoom delivered, program at the outset of COVID-19. Objectives: Study objectives were to explore the experiences of MATCH study participants who took the MBCR or TCQ program completely in-person, those who took the program completely online (over zoom), and participants who had to shift from in-person to online delivery midway through their series of TCQ classes. Methods: Semi-structured interviews were conducted with 13 participants following participation in either the MBCR or TCQ program of the MATCH study. Results: We derived four themes from the data: 1) attending to personal needs, 2) functional, interpersonal, and COVID19-related challenges, 3) unique engagement styles based on mode of delivery, and 4) ease of transitioning to remote delivery. We found that thematic outcomes were variable and largely based on individual preference, such as valuing more autonomy online, or appreciating the interpersonal connection of being in-person. Our results further indicated that the process of shifting from in-person to online within a short time-period was a relatively seamless transition that had minimal impact on participant experience. Conclusions: Insights from this study highlight the benefits of digital mind-body therapies for cancer survivors that extend beyond the acute effects of COVID19.

Recent Progress in Mind-Body Therapies in Cancer Care.

PURPOSE OF REVIEW: Mind-body therapies (MBTs) are integrative medicine modalities that continue to grow in popularity among people with cancer. MBTs are used to enhance well-being and most commonly include relaxation and imagery, hypnosis, yoga, meditation, Tai Chi and Qigong, and creative therapies. Biofield and psychedelic-assisted therapies are also gaining momentum as MBTs. Herein, recent literature was narratively reviewed to summarize the effectiveness of these MBTs within the context of cancer care. RECENT FINDINGS: There is growing evidence for the effectiveness of MBTs for addressing a myriad of physical (e.g., pain) and psychosocial (e.g., depression, fatigue) symptoms and biomarkers of stress and immune function in people with cancer. Psychedelic-assisted therapies have robust, sustained effects on symptoms of depression, anxiety, and distress in small clinical trials to date. However, across modalities, MBT studies continue to struggle with methodological issues such as intervention standardization, facilitator training, small sample sizes, and short follow-up. Accumulating evidence supports the use of MBTs for people with cancer. Future research should work to address methodological issues and focus on creating knowledge translation tools; these can be leveraged to better educate health care providers and patients regarding evidence-based MBT options to support patients in making informed decisions about their health.

The Chemo-Gut Pilot Study: Associations between Gut Microbiota, Gastrointestinal Symptoms, and Psychosocial Health Outcomes in a Cross-Sectional Sample of Young Adult Cancer Survivors.

Chemotherapy adversely affects the gut microbiota, inducing dysbiosis, and negatively impacts gastrointestinal (GI) and psychosocial health during treatment, but little is known about the long-term effects or how these factors are related. Methods: This cross-sectional pilot study investigated the effects of chemotherapy on the gut microbiota, GI symptoms, and psychosocial outcomes in cancer survivors aged 18−39 years old, compared to healthy controls. Gut microbial diversity and composition were assessed from stool samples using 16S rRNA gene sequencing. Results: Survivors (n = 17) and healthy controls (n = 18) participated. Mean age at diagnosis was 31 years (±5.3). Mean time off treatment was 16.9 months (±16.4). Survivors had more severe GI symptoms, poorer psychosocial health, and increased relative abundance of Selenomondales, Veilloneliaceae, and Intestinibacter. In survivors, Lachnospiraceae, Ruminococcaceae and Intestinibacter correlated with psychosocial symptoms, while diarrhea correlated positively with Lachnospiraceae. Results are statistically significant. Survivors ≤6 months post-treatment had lower alpha diversity than survivors >6 months post-treatment (p = 0.04) and controls (p = 0.19). Conclusion: This small exploratory study demonstrates potential long-term gut microbial dysbiosis in cancer survivors, which may be associated with psychosocial symptoms. Larger trials concurrently and longitudinally examining gut microbiota, GI symptoms, and psychosocial outcomes are needed.

Complementary and Alternative Medicine Online Learning Intervention for Oncology Healthcare Providers: A Mixed-Methods Study.

INTRODUCTION: With the increased usage of complementary approaches in oncology comes the need for its integration into healthcare professional (HCP) education. The purpose of this single-arm, mixed-methods study was to examine the feasibility and benefits of a brief complementary and alternative medicine (CAM) learning intervention for improving HCP knowledge, attitudes, and practices regarding CAM use in cancer care, and explore the experiences of participating HCPs. METHODS: HCPs from the Tom Baker Cancer Centre in Alberta, Canada, were invited to participate in 3 online interactive learning modules that reviewed: (1) basic CAM information, (2) HCP-patient CAM communication, and (3) evidence-based CAM decision support. The study survey consisted of attitude (n = 14), knowledge (n = 31), and practice (n = 31) items, administered at baseline and two-months post-intervention. Semi-structured interviews were conducted with a subset of participants. RESULTS: Approximately 300 HCPs were invited to participate, of which 105 expressed interest in the study (35%), and 83 of them consented to participate (79%). The intervention completion rate was 73% (61/83 HCPs). There was a significant pre-post change in HCPs' attitudes and, to a lesser extent, knowledge and practices related to CAM (8/14 attitude items changed pre-post compared to 13/31 knowledge items and 5/31 practice items), in which more HCPs reported patients should be assisted in making complementary therapy (CT) decisions, exhibited greater knowledge about CAM, and more often engaged in a CAM-related clinical practice. Qualitative findings supported the beneficial effects of the modules, with HCPs describing themselves as being more likely to ask patients about their CAM use and referring them to credible CAM resources. Nonetheless, the majority did not feel adequately prepared to make recommendations about specific CTs, even after the intervention. CONCLUSION: The current study suggests that online CAM learning offers a feasible and potentially promising intervention for improving oncology HCP knowledge, attitudes, and practices regarding CAM, warranting further investigation. This study highlights a need for institutional resources to help HCPs fully integrate CT decision support into cancer patient care. A coordinated evidence-based CAM program at cancer centers may help ensure that all patients' CAM-related needs are properly attended to.

The Use of Prebiotic and Probiotic Interventions for Treating Gastrointestinal and Psychosocial Health Symptoms in Cancer Patients and Survivors: A Systematic Review.

BACKGROUND: Cancer treatments can cause significant gastrointestinal (GI) health issues, and negatively affect patient's psychosocial health and quality of life (QOL). Novel, integrative strategies using prebiotics and probiotics have been explored for treating adverse cancer treatment-related side effects. We evaluated the current literature for interventions using prebiotics or probiotics specifically to treat GI and psychosocial health issues in cancer patients and survivors. METHODS: Five databases (PubMed, MEDLINE (Ovid), CINHAL, PsychINFO, Web of Science) were searched for studies with prebiotic or probiotic interventions where GI and/or psychosocial health outcomes were measured in adult cancer patients and survivors, and published before September 12th 2021. RESULTS: Twelve studies (N = 974 participants) meeting the inclusion criteria were identified (randomized controlled trials [n = 10], single-group pre-post studies [n = 2]). Ten studies were conducted with patients on active cancer treatment, and 2 studies treated patients after anti-cancer therapies. Three studies used prebiotics, 7 studies used probiotics, and 2 studies used a combination therapy. The most commonly used probiotic strains were from the Lactobacillus genus. There was minimal evidence for prebiotics to improve GI or psychosocial health. Probiotics were associated with significant improvements in abdominal pain (n = 2), gas/bloating (n = 2), and especially diarrhea (n = 5), and with improvements in anxiety (n = 1), depression (n = 1), fatigue (n = 1), and QOL (n = 2). CONCLUSIONS: Studies specifically examining effects of prebiotics and probiotics on GI and psychosocial health outcomes are scarce. Probiotic intervention may improve some GI symptoms in cancer patients, and QOL in survivors. Controlled trials that consistently include GI and psychosocial health outcomes are needed.

Mindfulness-Based Interventions in Cancer Survivors: A Systematic Review of Participants' Adherence to Home Practice.

BACKGROUND: Although mindfulness-based interventions (MBIs) have demonstrated efficacy for alleviating psychological distress in cancer survivors, little is known about the extent to which participants adhere to assigned home practice. The purpose of this systematic review was to summarize and appraise the literature on rates and correlates of adherence to mindfulness home practice among cancer survivors. METHODS: Four databases (PubMed, Psychology and Behavioral Sciences, PsycInfo, and CINAHL) were searched for studies published before October 15, 2020. Articles were included if they evaluated the benefits of an MBI program for adults with cancer. RESULTS: Twenty-one studies (N=1811 participants) meeting the inclusion criteria were identified (randomized controlled trials (n=13), non-randomized controlled designs (n=2), single-group studies (n=6)). The pooled adherence rate for participants' home practice was 60% of the assigned amount, which equated to 27 min per day during the intervention period. There was some evidence for a relationship between home practice of mindfulness techniques and improvements in mood, stress, anxiety, depression, and fear of cancer recurrence (correlation coefficients ranged from 0.33 to 0.67). Factors including marital status, mood disturbance at baseline, intervention modality, and personality traits were evaluated in relation to adherence to home practice, but the current literature was inadequate to evaluate whether a relationship exists. CONCLUSION: Adherence to mindfulness home practice among cancer survivors is suboptimal, and most of the correlates of adherence studied to date are non-modifiable. More research is warranted to scrutinize the role of home practice in mindfulness-based interventions, including assessment of modifiable factors influencing adherence to improve benefits for this population.

The Quality of Life and Psychosocial Implications of Cancer-Related Lower-Extremity Lymphedema: A Systematic Review of the Literature.

Lower-extremity lymphedema (LEL) is a progressive, lifelong complication of cancer that places a substantial burden upon cancer survivors' quality of life (QOL) and psychosocial well-being. Despite its prevalence, cancer-related LEL is inconsistently diagnosed, treated, and poorly recognized by health care professionals. The purpose of this systematic review was to summarize and appraise the quantitative literature evaluating the impact of cancer-related LEL on patients' psychosocial well-being and QOL. Three databases (PubMed, PROQuest, and Scopus) were searched for observational research articles published before May 1st, 2020. Twenty-one articles were eligible (cross-sectional (n = 16), prospective cohort designs (n = 3), and retrospective cohort designs (n = 2)). The majority of studies reported a negative relationship between cancer-related LEL and global QOL and/or one or more psychosocial domains including (1) physical and functional; (2) psycho-emotional; (3) social, relational and financial. A greater number of LEL symptoms and higher LEL severity were associated with poorer QOL. Although the evidence to date suggests a negative relationship between cancer-related LEL and patients' QOL and psychosocial well-being, there is a substantial need for longitudinal analyses to examine the directionality and temporality of this effect in order to inform cancer survivorship care modelling and improve patient outcomes after cancer.

Effects of Yoga-Based Interventions on Cancer-Associated Cognitive Decline: a Systematic Review.

PURPOSE OF REVIEW: To summarize and evaluate evidence available on the effects of yoga on cancer-associated cognitive decline (CACD). RECENT FINDINGS: A systematic review was conducted using four databases of articles published before January 1, 2020. Ten articles met the inclusion criteria (six randomized controlled trials, two single-arm studies, one non-randomized controlled trial, and one case series study). Studies were predominantly conducted with breast cancer patients using low-intensity hatha yoga programs. Of the 10 articles, five reported some positive effects on CACD, but significant biases were possible due to design shortcomings. Cohen's d effect sizes ranged from |0.03| to |0.74|. The evidence to date is insufficient to suggest that yoga is beneficial for attenuating CACD. More rigorous trials controlling for non-specific factors are warranted. The field would also benefit from examining self-delivered modes of yoga for treating CACD in various cancer populations to enhance practice sustainability and generalizability.

Assessment of metal/metalloid occurrence in rivers with their accumulation in macrophyte case study with Myriophyllum alterniflorum.

Water quality monitoring with integrative tools is a main issue of concern for environment assessment. Submerged aquatic macrophyte can be a good candidate for the evaluation of contaminant content in rivers. Indeed, owing to their habitat, aquatic macrophytes interact directly with surface water; they can absorb contaminants and thus allow to detect their presence in water. In situ studies were conducted over 28 days in five aquatic environments, affected by different levels of anthropogenic pressure (domestic wastewater plant, industrial activities), during two field campaigns. We have investigated whether the accumulation of some metals and a metalloid (As) in Myriophyllum alterniflorum could be used to detect their occurrence in river waters. Our results demonstrated that long time bioaccumulation was correlated with the contaminant levels in water. However, the water composition and the duration of exposure affected the studied pollutants' absorption. On an operational point of view, the optimal duration of exposure of Myriophyllum alterniflorum to assess the water quality is conditioned by the contaminant contents in waters that can induce different defense mechanisms as the reduction of pollutant absorption and their efflux. In addition, the nutrient concentration influenced the accumulation of pollutants since the higher the nutrient level, the higher the essential metal accumulation was observed.

Yoga for Cancer-Related Fatigue in Survivors of Hematopoietic Cell Transplantation: A Feasibility Study.

CONTEXT: Cancer-related fatigue (CRF) is one of the most common symptoms experienced by cancer patients after hematopoietic cell transplantation (HCT). Yoga is an approach with supportive evidence to improve CRF in different cancer populations, but to our knowledge, it has not been tested in an adult HCT population. OBJECTIVES: The aim of this study was to evaluate the feasibility of a yoga intervention offered to adult HCT survivors with moderate-to-severe CRF. METHODS: This feasibility study used a single-arm, pretest-posttest design. Adult HCT survivors were enrolled in a six-week restorative yoga intervention that consisted of a one-hour once-weekly class with twice-weekly home practice using a DVD. RESULTS: Twenty participants (13 women and seven men) enrolled in this study with a mean age of 51 years (SD = 12.5). The sample consisted of 19 allogeneic HCT survivors, seven of whom had a history of acute graft-vs.-host disease (GVHD), six with active, extensive chronic GVHD, and one autologous HCT survivor. The accrual acceptance rate was 23.2% (20/86 HCT survivors) and retention rate was 60% (12/20). Overall adherence was 45.4%. No adverse events were reported. CONCLUSION: The results of this study suggest that a restorative yoga intervention in adult HCT survivors is safe and feasible. The incidence of GVHD may have impacted adherence. Strategies to improve accrual acceptance, retention, and adherence are needed.

The chemo-gut study: investigating the long-term effects of chemotherapy on gut microbiota, metabolic, immune, psychological and cognitive parameters in young adult Cancer survivors; study protocol.

BACKGROUND: The gut microbiota is an important modulator of immune, metabolic, psychological and cognitive mechanisms. Chemotherapy adversely affects the gut microbiota, inducing acute dysbiosis, and alters physiological and psychological function. Cancer among young adults has risen 38% in recent decades. Understanding chemotherapy's long-term effects on gut microbiota and psycho-physiological function is critical to improve survivors' physical and mental health, but remains unexamined. Restoration of the gut microbiota via targeted therapies (e.g. probiotics) could potentially prevent or reverse the psycho-physiological deficits often found in young survivors following chemotherapy, ultimately leading to reduced symptom burden and improved health. METHODS: This longitudinal study investigates chemotherapy induced long-term gut dysbiosis, and associations between gut microbiota, and immune, metabolic, cognitive and psychological parameters using data collected at < 2 month (T1), 3-4 months (T2), and 5-6 months (T3) post-chemotherapy. Participants will be 18-39 year old blood or solid tumor cancer survivors (n = 50), and a healthy sibling, partner or friend as a control (n = 50). Gut microbiota composition will be measured from fecal samples using 16 s RNA sequencing. Psychological and cognitive patient reported outcome measures will include depression, anxiety, post-traumatic stress disorder symptoms, pain, fatigue, and social and cognitive function. Dual-energy X-ray Absorptiometry (DXA) will be used to measure fat and lean mass, and bone mineral concentration. Pro-inflammatory cytokines, C-reactive protein (CRP), lipopolysaccharide (LPS), serotonin, and brain derived neurotrophic factor (BDNF) will be measured in serum, and long-term cortisol will be assayed from hair. Regression and linear mixed model (LMM) analyses will examine associations across time points (T1 - T3), between groups, and covariates with gut microbiota, cognitive, psychological, and physiological parameters. CONCLUSION: Knowing what bacterial species are depleted after chemotherapy, how long these effects last, and the physiological mechanisms that may drive psychological and cognitive issues among survivors will allow for targeted, integrative interventions to be developed, helping to prevent or reverse some of the late-effects of treatment that many young cancer survivors face. This protocol has been approved by the Health Research Ethics Board of Alberta Cancer Committee (ID: HREBA.CC-19-0018).

Phase II randomized controlled trial of hypnosis versus progressive muscle relaxation for body image after breast or gynecologic cancer.

BACKGROUND: Sexual dysfunction, fueled by body image stress, is prevalent in women with a history of breast or gynecologic cancer. Preliminary data support that mind-body connections may improve sexual health outcomes through improving body image. OBJECTIVE: This randomized controlled trial compared hypnosis to progressive muscle relaxation (PMR). The primary outcome was body image at week 6 as measured by the Impact of Treatment Scale for women who have or have had breast or gynecologic cancer. INTERVENTIONS/METHODS: Consented participants were randomized 2:1 to hypnosis or PMR. Both arms consisted of three face-to-face sessions delivered by a trained therapist. Sessions were every 2 weeks for 6 weeks; participants practiced at home between sessions using an audio recording. RESULTS: Eighty-seven women were randomized, 59 to hypnosis and 28 to PMR. Both groups reported significant improvements on body image over time (within group effect size Cohen's d = 0.49-0.75) with no significant difference between groups (p = 0.15). Secondary outcomes were not significantly different between groups. The hypnosis group improved more in sexual satisfaction and sexual interest while the PMR group improved more in positive affect. CONCLUSIONS: Interventions facilitating mind-body connections such as hypnosis and PMR may help to improve body image. This study suggests that stress relieving strategies of hypnosis and PMR may contribute to providing a re-connection to one's body, improved positive affect, and overall better sexual health.

A cancer specific middle-range theory of symptom self-care management: A theory synthesis.

AIM: This article describes the development of a middle-range theory of symptom self-care management for adults with cancer. BACKGROUND: Current evidence indicates that people with cancer may benefit from engagement in self-care management behaviours, one of which is symptom management. A middle-range theory that explains and guides symptom self-care management in people with cancer is lacking. DESIGN: This paper combines and expands prior work related to symptom management and self-care management to introduce a newly synthesized theory of symptom self-care management for adult people with cancer. Walker and Avant's methodological approach was used to guide this theory synthesis. DATA SOURCES: PubMed, CINAHL, and Cochrane Library databases of peer reviewed journal articles published before 15 March 2018. IMPLICATIONS FOR NURSING: The newly synthesized theory conceptualizes cancer as a chronic illness with related symptoms that persist beyond the acute phase of treatment. This theory sheds the light on self-care management as an essential approach to managing cancer-related symptoms and underscores the importance of empowering and enabling people with cancer to manage their symptoms in partnership with healthcare providers. CONCLUSION: The new theory offers a comprehensive conceptualization of symptom self-care management behaviours in adults with cancer. It clarifies potential determinants and effects of cancer-related symptoms and puts forth factors that may influence patient adherence to symptom self-care management behaviours. This new theory may influence the development of symptom management interventions across the phases of the cancer self-care continuum. Research to test the new theory is warranted.

Complementary therapies for fatigue after hematopoietic stem cell transplantation: an integrative review.

Fatigue after hematopoietic stem cell transplantation (HSCT) is a persistent problem that limits activities and causes distress. Complementary therapies have shown promising results in improving fatigue in several patient populations. However, it is unknown whether they have the same effect on fatigue in the HSCT population. This integrative review aimed to explore the literature that evaluated complementary therapies for fatigue among HSCT patients. Only eight studies were considered eligible for inclusion in this review. The eight studies evaluated music therapy, relaxation, mindfulness, and massage techniques with mixed results. These studies had major methodological limitations, such as the small sample sizes and not blinding participants to the treatment allocation, introducing possible bias. Furthermore, most of these studies used 'usual care' control groups, leaving it unclear to what extent the observed effects are based on the effects of complementary therapies, or rather on psychosocial factors such as personal attention. More research is needed to more rigorously evaluate these and other complementary therapies for the prevalent problem of fatigue in the HSCT population.

Absorption and translocation of copper and arsenic in an aquatic macrophyte Myriophyllum alterniflorum DC. in oligotrophic and eutrophic conditions.

The aim of this study is to evaluate copper and arsenic accumulation and translocation at a concentration of 100 µg/L of a submersed macrophyte Myriophyllum alterniflorum. The trophic level (eutrophic and oligotrophic conditions) of the medium was also considered. To achieve this goal, plants were incubated for 21 days in the presence of 100 µg/L of Cu or AsV. The heavy metal transfers from the contaminated medium to plants and into plant tissues was discussed in terms of the bioconcentration factor (BCF) and the translocation factor (TF). Malondialdehyde (MDA) content in tissues was analyzed in order to study the toxicity of these two contaminants. Our results show that copper was more accumulated in shoots, than roots, whereas the opposite trend was observed for arsenic. In addition, the two contaminants were more accumulated in oligotrophic than eutrophic medium. The BCF of copper in shoots was 1356 in oligotrophic condition, while that of arsenic was higher in roots about 620 in the same condition. The TF was less than 1 for arsenic, and higher than 1 for copper, indicating that watermilfoil restrains the translocation of arsenic to shoots, while it has a low capacity to control the translocation of an essential micronutrient like copper. An increase in MDA content was observed under Cu and As stress. On the basis of this experiment, M. alterniflorum has a higher accumulation potential of copper and arsenic, and therefore, it can be a good candidate for the phytofiltration of these two contaminants from water.