Only the Lonely: Expression of Proinflammatory Genes Through Family Cancer Caregiving Experiences

Stress-related gene regulation: Do isolated and connected individuals differ?

BACKGROUND

Social isolation and loneliness (known as social disconnection, collectively) lead to serious downstream health effects, including shortening of lifespan and higher risk for cardiac disease. We must better understand how isolation and loneliness lead to these negative health outcomes. Previous literature has demonstrated that social motivation and social ability are contributors to the likelihood of social isolation and loneliness. We examined the effect of the above social factors on immune gene expression in socially-connected and -isolated individuals.

METHODS

Recruitment occurred via two online advertisements, one for socially isolated individuals and another for general research participants. Participants (n = 102) were separated into groups (isolated versus connected) based on which ad they responded to, and provided data on isolation, loneliness, social motivation, and social ability. The Conserved Transcriptional Response to Adversity (CTRA) stress gene regulation program was assessed with genome-wide transcriptional profiling.

RESULTS

CTRA gene expression patterns were reversed between connected and isolated groups across several variables. Social isolation was associated with higher CTRA levels in the connected group, but lower levels in the isolated group. Social approach was associated with lower CTRA levels in the connected group, but higher in the isolated group, and the converse was true for social avoidance. CTRA levels were minimally affected by social ability measures.

CONCLUSION

Prior work on social isolation and loneliness has focused on loneliness and has identified many negative downstream health effects. In this study we demonstrate that objective social isolation may not be associated with the same negative downstream health effects, and in fact, social interaction may be more stressful than social isolation for some socially-isolated individuals.

Latent profile analysis of benefit finding among family caregivers of Chinese older adults with disabilities and its influencing factors

OBJECTIVES

The increase in the number of older adults with disability creates new challenges for caregivers. Benefit finding is the positive experience that caregivers get from caregiving, helping to reduce the negative impact on the caregiver's quality of life. However, there is less research on the positive experiences of family caregivers of older adults with disabilities. This study aimed to identify different benefit finding profiles among family caregivers of older adults with disabilities in China and to explore the sociodemographic characteristics and psychosocial factors with different benefit finding profiles.

METHODS

A cross-sectional study of 218 family caregivers of Chinese older adults with disabilities using the sociodemographic questionnaire, the Family-APGAR, the Sense of Coherence-13, the Emotion Regulation Scale and Benefit Finding Scale from October 2022 to June 2023 in communities and hospitals of China, Shenyang, Liaoning Province. Latent profile analysis was used to analyze the latent profiles of benefit finding among family caregivers of Chinese older adults with disability. Multiple logistic regression was used to explore the predictors of different profiles.

RESULTS

The benefit finding among family caregivers of Chinese older adults with disability can be classified into three potential profiles: Profile 1 - high-level benefit finding group (12.84%), Profile 2 - medium-level benefit finding group (43.58%), Profile 3 - low-level benefit finding group (43.58%). Working status, family function, and cognitive reappraisal of caregiver were predictors of different profiles.

CONCLUSIONS

Nurses and community health care staffs should pay attention to the characteristics, family function, and emotion regulation strategies of family caregivers of older adults with different disability. Help family caregivers enhance family cohesion and cognitive reappraisal to improve positive experiences for caregivers in different profiles.

Psychoneuroimmunology in multiple myeloma and autologous hematopoietic stem cell transplant: Opportunities for research among patients and caregivers

Multiple myeloma (MM) is an incurable cancer and is the leading indication for autologous hematopoietic stem cell transplantation (HSCT). To be eligible for HSCT, a patient must have a caregiver, as caregivers play a central role in HSCT preparation and recovery. MM patients remain on treatment indefinitely, and thus patients and their caregivers face long-term challenges including the intensity of HSCT and perpetual therapy after transplant. Importantly, both patients and their caregivers show heightened depressive and anxiety symptoms, with dyadic correspondence evidenced and caregivers' distress often exceeding that of patients. An extensive psychoneuroimmunology (PNI) literature links distress with health via immune and neuroendocrine dysregulation as well as biological aging. However, data on PNI in the context of multiple myeloma - in patients or caregivers - are remarkably limited. Distress in MM patients has been associated with poorer outcomes including higher inflammation, greater one year post-HSCT hospital readmissions, and worse overall survival. Further, anxiety and depression are linked to biological aging and may contribute to the poor long-term health of both patients and caregivers. Because MM generally affects older adults, individual differences in biological aging may represent an important modifier of MM biology and HSCT treatment outcomes. There are a number of clinical scenarios in which biologically younger people could be prescribed more intensive therapies, with potential for greater benefit, by using a personalized cancer therapy approach based on the quantification of physiologic reserve. Further, despite considerable psychological demands, the effects of distress on health among MM caregivers is largely unexamined. Within this context, the current critical review highlights gaps in knowledge at the intersection of HSCT, inflammation, and biological aging in the context of MM. Research in this area hold promise for opportunities for novel and impactful psychoneuroimmunology (PNI) research to enhance health outcomes, quality of life, and longevity among both MM patients and their caregivers.

Loneliness, psychological distress, and the moderating effect of positive aspects of caregiving among cancer caregivers

PURPOSE

Family caregivers of patients with cancer often experience both loneliness and symptoms of psychological distress, such as anxiety and depression. The purpose of this study was to evaluate the associations between loneliness and anxiety and loneliness and depression among family caregivers of patients with cancer and to investigate whether positive aspects of caregiving can have a moderating effect on these relationships.

METHODS

We conducted a cross-sectional exploratory study using baseline data from an ongoing multisite clinical trial. Multiple linear regression models were used to analyze the relationships between loneliness and psychological distress symptoms and the moderating effect of positive aspects of caregiving. Psychological distress outcomes were measured using PROMIS Short Forms (8a) for Anxiety and Depression.

RESULTS

We identified a significant association between loneliness and symptoms of both anxiety and depression. Positive aspects of caregiving did not significantly moderate the relationship between loneliness and depression or loneliness and anxiety.

CONCLUSION

The results of this study shed new light on the relationship between loneliness and symptoms of psychological distress experienced by family caregivers of cancer patients, providing a better understanding of the impact that recognition of positive aspects of caregiving has on the association between loneliness and psychological distress symptoms. Our findings emphasize the importance of targeting family caregiver loneliness in order to reduce psychological distress among family caregivers of cancer patients.

Experiences of racial discrimination and adverse gene expression among black individuals in a level 1 trauma center sample

Up to 40 % of individuals who sustain traumatic injuries are at risk for posttraumatic stress disorder (PTSD) and the conditional risk for developing PTSD is even higher for Black individuals. Exposure to racial discrimination, including at both interpersonal and structural levels, helps explain this health inequity. Yet, the relationship between racial discrimination and biological processes in the context of traumatic injury has yet to be fully explored. The current study examined whether racial discrimination is associated with a cumulative measure of biological stress, the gene expression profile conserved transcriptional response to adversity (CTRA), in Black trauma survivors. Two-weeks (T1) and six-months (T2) post-injury, Black participants (N = 94) provided a blood specimen and completed assessments of lifetime racial discrimination and PTSD symptoms. Mixed effect linear models evaluated the relationship between change in CTRA gene expression and racial discrimination while adjusting for age, gender, body mass index (BMI), smoking history, heavy alcohol use history, and trauma-related variables (mechanism of injury, lifetime trauma). Results revealed that for individuals exposed to higher levels of lifetime racial discrimination, CTRA significantly increased between T1 and T2. Conversely, CTRA did not increase significantly over time in individuals exposed to lower levels of lifetime racial discrimination. Thus, racial discrimination appeared to lead to a more sensitized biological profile which was further amplified by the effects of a recent traumatic injury. These findings replicate and extend previous research elucidating the processes by which racial discrimination targets biological systems.

How does loneliness "get under the skin" to become biologically embedded?

Loneliness is linked to declining physical health across cardiovascular, inflammatory, metabolic, and cognitive domains. As a result, loneliness is increasingly being recognized as a public health threat, though the mechanisms that have been studied do not yet explain all loneliness-related health risk. Potential mechanisms include loneliness having 1.) direct, causal impacts on health, possibly maintained by epigenetic modification, 2.) indirect effects mediated through health-limiting behaviors, and 3.) artifactual associations perhaps related to genetic overlap and reverse causation. In this scoping review, we examine the evidence surrounding each of these pathways, with a particular emphasis on emerging research on epigenetic effects, in order to evaluate how loneliness becomes biologically embedded. We conclude that there are significant gaps in our knowledge of how psychosocial stress may lead to physiological changes, so more work is needed to understand if, how, and when loneliness has a direct influence on health. Hypothalamic-pituitary adrenocortical axis disruptions that lead to changes in gene expression through methylation and the activity of transcription factor proteins are one promising area of research but are confounded by a number of unmeasured factors. Therefore, wok is needed using causally informative designs, such as twin and family studies and intensively longitudinal diary studies.

Social Networks Effects on Spouse and Adult-Child Dementia Caregivers' Experiences: A Cross-Sectional Study

OBJECTIVES

A large body of literature addresses experiences of spouse and adult-children caregiver of individuals with dementia (IWDs) but has not examined the role and strength of social networks in associations between spouses and adult-children caregivers' experience. Based on the stress process model, we aimed to explore the strength levels of social networks and their association with spouses/adult-children caregivers for IWDs.

DESIGN

A cross-sectional study.

SETTING AND PARTICIPANTS

A questionnaire-based survey was conducted with a total of 146 family caregivers of IWDs (78 adult-child, and 68 spouses) in China.

METHODS

Data collection comprised 4 sections: (1) care-related stressors (dementia stage, neuropsychiatric symptoms); (2) caregiver context; (3) social network, using the Lubben Social Network Scale; and (4) caregiving experience, using the short-form Zarit Burden Interview and 9-item Positive Aspects of Caregiving Scale. Linear regression, mediation model analysis, and interactive analysis were performed to explore the mechanisms of associations between variables.

RESULTS

Spouses had weaker social network strength (β = -0.294, P = .001) and reported greater positive aspects of caregiving (β = 0.234, P = .003) than adult-children caregivers; no significant difference was found between them for caregiver burden. Mediation analysis suggests that associations between caregiver type and caregiver burden are indirect-only mediation effects of social networks (β = 0.140, 95% CI = 0.066-0.228). The social network strength suppressed the association between caregiver type and positive aspects of caregiving. The caregiver type/social network interaction statistically significantly (P = .025) affected the "positive aspects": a stronger social network was associated with more positive aspects of caregiving among the spouse subgroup (β = 0.341, P = .003).

CONCLUSIONS AND IMPLICATIONS

Social networks mediate responses to caregiving experiences among different care provider types and are vital intervention targets, especially for spousal caregivers. Our results can serve as references for identifying caregivers for clinical intervention.

Caregiver and care recipient health literacy, social support and connectedness on caregiver psychological morbidity: A cross-sectional dyad survey

BACKGROUND

Caregivers play an important role supporting people diagnosed with cancer, yet report significant unmet information and support needs that impact on their psychological wellbeing. Health literacy and social connectedness are key factors that influence wellbeing, yet few studies have examined their relative role in psychological wellbeing of carers. This study investigated relationships between caregiver and care recipient health literacy, social support, and social connectedness on psychological morbidity in a cancer setting.

METHODS

This cross-sectional study included 125 caregiver-cancer care recipient dyads. Participants completed the Health Literacy Survey-EU-Q16, Social Connectedness Scale-Revised, the Medical Outcomes Study-Social Support Survey, and the Depression, Anxiety and Stress Scale-21 (DASS21). Relationships between factors were examined using hierarchical multiple regression with care recipient factors entered at Step 1 and caregiver factors at Step 2.

RESULTS

Most caregivers provided care for their spouse (69.6%); caregivers mean total DASS21 score was 24.38 (SD = 22.48). Mean DASS21 subscale scores for depression, anxiety, stress in caregivers were 4.02 (SD = 4.07), 2.7 (SD = 3.64), and 5.48 (SD = 4.24) respectively, suggesting normal range of depression and stress, and mild anxiety. Care recipients had a diagnosis of breast (46.4%), gastrointestinal (32.8%), lung (13.6%), or genitourinary (7.2%) cancer, and a mean DASS21 score of 31.95 (SD = 20.99). Mean DASS21 subscale scores for depression, anxiety, stress in care recipients were 5.10 (SD = 4.18), 4.26 (SD = 3.65), and 6.62 (SD = 3.99) respectively, suggesting mild depression and anxiety, and normal stress scores. Regression analyses showed that only caregiver factors (age, illness/disability, health literacy and social connectedness) were independent predictors of caregiver psychological morbidity (F [10,114] = 18.07, p < 0.001).

CONCLUSION(S)

Only caregiver, and not care recipient, factors were found to influence caregiver psychological morbidity. While both health literacy and social connectedness influenced caregiver psychological morbidity, perceived social connectedness had the strongest influence. Interventions that ensure caregivers have adequate health literacy skills, as well as understand the value of social connection when providing care, and are supported to develop skills to seek support, have the potential to promote optimal psychological wellbeing in cancer caregivers.

Biobehavioral Implications of Covid-19 for Transplantation and Cellular Therapy Recipients

A growing body of literature has emphasized the importance of biobehavioral processes - defined as the interaction of behavior, psychology, socioenvironmental factors, and biological processes - for clinical outcomes among transplantation and cellular therapy (TCT) patients. TCT recipients are especially vulnerable to distress associated with pandemic conditions and represent a notably immunocompromised group at greater risk for SARS-CoV-2 infection with substantially worse outcomes. The summation of both the immunologic and psychologic vulnerability of TCT patients renders them particularly susceptible to adverse biobehavioral sequelae associated with the Covid-19 pandemic. Stress and adverse psychosocial factors alter neural and endocrine pathways through sympathetic nervous system and hypothalamic-pituitary-adrenal axis signaling that ultimately affect gene regulation in immune cells. Reciprocally, global inflammation and immune dysregulation related to TCT contribute to dysregulation of neuroendocrine and central nervous system function, resulting in the symptom profile of depression, fatigue, sleep disturbance, and cognitive dysfunction. In this article, we draw upon literature on immunology, psychology, neuroscience, hematology and oncology, Covid-19 pathophysiology, and TCT processes to discuss how they may intersect to influence TCT outcomes, with the goal of providing an overview of the significance of biobehavioral factors in understanding the relationship between Covid-19 and TCT, now and for the future. We discuss the roles of depression, anxiety, fatigue, sleep, social isolation and loneliness, and neurocognitive impairment, as well as specific implications for sub-populations of interest, including pediatrics, caregivers, and TCT donors. Finally, we address protective psychological processes that may optimize biobehavioral outcomes affected by Covid-19.