Depressive Symptoms Research Articles

Evaluating a mental health support mobile app for adults with type 1 diabetes living in rural and remote communities: The REACHOUT pilot study.

To evaluate a mobile app that delivers mental health support to adults with type 1 diabetes (T1D) living in rural and remote communities using the Reach, Effectiveness, Adoption, Intervention fidelity, Maintenance (RE-AIM) framework. This study recruited 46 adults to participate in a 6-month intervention using REACHOUT, a mobile app that delivers peer-led mental health support (one-on-one, group-based texting and face-to-face virtual). Baseline and 6-month assessments measured diabetes distress (DD), depressive symptoms and perceived support (from family/friends, health care team and peers) along with other RE-AIM metrics. Calculations for reach and adoption found that 3% of eligible adults enrolled in REACHOUT and 55% of diabetes education centres participated in recruitment efforts. Maintenance metrics revealed 56% and 24% of peer supporters and participants, respectively, became peer supporters for a subsequent randomized controlled trial of REACHOUT. Post-intervention reductions were observed for overall distress (p = 0.007), powerlessness (p = 0.009), management distress (p = 0.001), social perception distress (p = 0.023), eating distress (p = 0.032) and depressive symptoms (p = 0.009); and elevations in support from family/friends and peers. After adjusting for sex and age, only support-related improvements persisted. When analysing women and men groups separately, women reported lower levels of overall distress, three distress subscales, and higher levels of family/friends and peer support whereas men did not. While reach was relatively low, metrics for adoption and maintenance are promising. Improvements in distress were observed for the total sample, but these changes were reduced when controlling for sex and age, with significance maintained only for women. Digital health-enabled peer support may be instrumental in the delivery of mental health support to geographically isolated communities.

Changes in Exercise Performance in Patients During a 6-Week Inpatient Psychiatric Rehabilitation Program and Associated Effects on Depressive Symptoms

Background/Objectives: The impact of exercise on affective disorders has been demonstrated in various studies. However, almost no data are available on performance effects. Therefore, this study investigated exercise performance related to the severity of depression symptoms in a pre–post within-subjects design in a 6-week standard inpatient psychiatric rehabilitation program. Methods: A total of 53 individuals (20 female; mean age, 40.98 ± 11.33) with a primary diagnosis of depression performed a cardiopulmonary exercise test (CPX) to obtain maximal oxygen uptake (VO2max), maximal power output (Pmax), and the first and second ventilatory threshold (VT1, VT2) at the start and the end of the rehabilitation. Degree of depression was assessed by Becks Depression Inventory (BDI) and the Brief Symptom Inventory test (BSI). Overall activity was measured by accelerometer step-counts. Results: Mean total step-count per day during rehabilitation was high (12,586 ± 2819 steps/day). Patients’ BDI and BSI at entry were 21.6 ± 8.83 and 65.1 ± 6.8, respectively, and decreased significantly (p < 0.001) following rehabilitation, to 10.1 ± 9.5 and 54.5 ± 11.3, respectively. Pmax and VO2max increased significantly (p < 0.001) from entry values (182.6 ± 58.7 W, 29.74 ± 5.92 mL·kg−1·min−1) following rehabilitation: by 11.91 ± 12.09 W and 1.35 ± 2.78 mL·kg−1·min−1, respectively. VT1 and VT2 showed a similar behavior. An increase in physical performance could predict improvement in BDI (R2 = 0.104, F(1,48) = 5.582, p = 0.022) but not in BSI. Conclusions: The program was associated with improved mental health status in all patients and increased performance in the majority of patients, although increases were small. Since improvements in exercise performance may be positively related to depression symptoms and comorbidities, it is recommended to individualize and tailor exercise programs, which could yield larger effects.

Perceived Age Discrimination has Different Effects on Japanese People's Wellbeing Based on Age Groups.

This study elucidates the direct and indirect effects of perceived age discrimination on depressive symptoms and life satisfaction among young, middle-aged, and older adults-through the mediator variables of psychosocial resources and aging stereotypes. Data were collected through a web-based survey conducted in Japan. The total sample size was 2400: 400 men and women in each of the age groups 20 to 39, 40 to 59, and 60 to 79. Our findings indicate that perceived age discrimination is linked depressive symptoms, even among young adults, who report more age discrimination than older adults. Its effect on life satisfaction, however, is stronger among older adults. Across age groups, most of its effect on life satisfaction was explained by both psychosocial resources and aging stereotypes. By contrast, its effect on depressive symptoms did not differ significantly by age group, and was partly explained by the mediators. These differing results may be attributable to selection bias in the web survey.

Staff Observational Differences Between Depressive Disorders and Personality Disorders.

Distinguishing those with a personality disorder from those with major depressive disorder (MDD) can be challenging, but establishing the correct diagnosis can direct appropriate management. To identify whether behavioural themes differ between those with personality disorders from those with MDD, and how those differences might relate to a clinical team's perception of diagnosis. An observational study identifying all inpatients presenting with symptoms of depression. At discharge, patients (n = 60) underwent a structured diagnostic interview and were grouped according to diagnosis. Qualitative data was analysed to determine whether behavioural themes differed between those with MDD and those with a personality disorder (with or without MDD). Ward staff perceptions of diagnosis aligned in all cases of personality disorder, but they also attributed that diagnosis to 54% of patients who had only MDD. Several behavioural themes were evident in those with a personality disorder but not those with MDD. Many behavioural themes were observed in both groups, and it is likely these that drove differences in diagnostic views. Certain behavioural themes may be determinants of the perception of diagnosis held by inpatient staff, and when present in acute episodes in MDD, may risk diagnostic misattribution.

Mental Health of Pediatric Patients with Cystic Fibrosis after 18 Months on Elexacaftor-Tezacaftor-Ivacaftor Therapy.

Research studies are conflicting regarding new highly effective modulators and the association with mental health symptoms for adults and adolescents with cystic fibrosis (CF). For younger children, small studies and case reports indicate a wide range of effects, ranging from improvement in mood to the development of neuropsychiatric symptoms. However, a large placebo-controlled study indicated no causal connection. This study evaluates the frequency and severity of mental health symptoms in children and adolescents while taking elexacaftor/tezacaftor/ivacaftor (ETI). The study includes 81 pediatric patients with CF followed at Nationwide Children's Hospital (NCH). Patient Reported Outcomes Measurement Information System (PROMIS)-Anxiety and Depression, Patient Health Questionnaire 8 (PHQ-8) and Generalized Anxiety Disorder Questionnaire (GAD-7) were used to screen for depression and anxiety. Age-appropriate questionnaires were completed over the first 18 months after initiating ETI. At baseline, majority of participants reported mental health symptoms within normal limits (WNL). For participants with elevated baseline measures, depressive and anxiety symptoms significantly decreased throughout the study period. Depending on the metric, patients experiencing depressive and anxiety symptoms dropped to 2-3% (n = 1, on each depressive measure) and 0% (n = 0, on either anxiety measures) respectively by 18 months. Most pediatric patients with CF did not endorse symptoms of depression or anxiety disorders at ETI initiation. Over the first 18 months of ETI usage, the percentage of patients with these symptoms decreased, suggesting that the percentage of patients experiencing severe symptoms of depression and anxiety may decrease with ongoing use of ETI.

“It Was a Downward Spiral”: A Qualitative Study of Young Adult Cancer Survivors’ Experiences with Cognitive and Mental Health

Background/Objectives: Cancer-related cognitive impairment (CRCI) is common and distressing for young adult (YA) cancer survivors; however, subjective CRCI is often attributed to psychological distress rather than true cognitive change. Thus, we aimed to generate hypotheses regarding potential common biobehavioral mechanisms of CRCI and psychological distress. Methods: We conducted semi-structured interviews with YA cancer survivors in peak years for frontal neurocognitive development (ages 18–30), and we asked them to describe their experiences with cognitive and mental health changes during and after treatment for their cancer. An applied thematic analysis was used to identify themes. Results: The participants were 20 YA cancer survivors who were, on average, 23 years old at diagnosis and 26 years old when interviewed. Five themes emerged regarding the connection between cognitive and mental health: depressed mood after diagnosis that decreased mental engagement, cancer-related anxiety consumed cognitive resources during treatment, a bidirectional “downward spiral” during treatment, frustration with forgetfulness, and self-criticism about long-term cognitive limitations. Additionally, participants described receiving minimal information about evidence-based strategies for managing CRCI. Conclusions: Future research is needed to examine common neurological mechanisms among symptoms of depression, anxiety, and CRCI and to address gaps in survivorship care for YA survivors with CRCI. Cognitive–behavioral interventions may address both cognitive and mental health.

Grief-Specific Cognitive Behavioral Therapy vs Present-Centered Therapy: A Randomized Clinical Trial.

Prolonged grief disorder (PGD) is included as a new diagnosis in international classification systems. Treatments following a cognitive behavioral model are most effective, but comparisons with active control treatments are scarce. To examine whether integrative cognitive behavioral therapy for prolonged grief (PG-CBT) is superior to present-centered therapy (PCT). This was a rater-blinded, multicenter, randomized clinical trial (stratified by center and relationship to the deceased) with enrollment from April 2017 to May 2022. The setting included 4 university outpatient clinics in Germany. Eligible participants were aged 18 to 75 years and had PGD based on the Prolonged Grief Disorder 13 (PG-13) interview. Participants were randomized 1:1 to PG-CBT and PCT. PG-CBT focused on the exposure to the worst moment of the loss and cognitive restructuring of grief-related cognitions in combination with solution-focused and experiential methods (eg, walk to the grave exercise). PCT was adapted in session length and number to PG-CBT and focused on a supportive relationship and coping with daily problems that may have arisen from the loss or grief symptoms. All outcomes were assessed at baseline, after treatment, and 12 months after randomization at follow-up. The primary outcome was a blinded assessment of the PG-13 severity score at follow-up. Secondary outcomes were self-reported depressive, somatic, and overall psychopathological symptoms. Of 544 treatment-seeking individuals experiencing bereavement, 212 eligible participants (mean [SD] age, 51.8 [13.3] years; 173 female [82%]) with PGD based on the PG-13 interview were randomized to PG-CBT and PCT (n = 106 in each condition). In the intention-to-treat analysis, both treatments yielded high reductions in PGD severity at follow-up (PG-CBT: Cohen d = 1.64; 95% CI, 1.31-1.97; PCT: Cohen d = 1.38; 95% CI, 1.09-1.66). After treatment, participants receiving PG-CBT demonstrated significantly greater reductions in PGD severity than those receiving PCT (Cohen d = 0.31; 95% CI, 0.03-0.57). At follow-up, this effect was only visible on a trend level (Cohen d = 0.28; 95% CI, -0.02 to 0.57), whereas participants in the PG-CBT group had significantly less depressive and general psychopathological symptoms. Twenty-three participants (20%) discontinued PG-CBT treatment, and 17 participants (16%) discontinued PCT. This randomized clinical trial demonstrates that PG-CBT was superior to PCT after treatment and at follow-up with regard to comorbid symptoms. Both treatments were shown to be effective and acceptable, showing the potential for dissemination and increasing patient choice. German Clinical Trials Register (DRKS) identifier: DRKS00012317.

Preliminary Evidence of Sleep Improvements Following Psilocybin Administration, and their Involvement in Antidepressant Therapeutic Action.

Psilocybin is a rapidly-emerging treatment for depression, yet its impact on sleep is not well understood. We sought to explore the literature on sleep and psilocybin use, and explore the topic using our own primary data. Whilst clinical trials demonstrate large depressive symptom improvements, the impact of psilocybin on sleep quality or insomnia symptoms, has not been directly studied. Using our own preliminary-data we demonstrated that both depressive-symptoms and sleep-disturbances decreased significantly following psilocybin use, though sleep improvements were smaller compared to depressive symptoms. More severe sleep-disturbances at baseline were linked to lower probability of depression remission, underscoring a potential interaction between sleep and psilocybin's efficacy. Addressing sleep disturbances could enhance therapeutic outcomes in psilocybin-assisted therapy and could lead to more effective, personalized treatment-strategies. Future research should focus on populations with sleep disorders, and on examining causal-pathways of sleep physiology's impact on psilocybin efficacy.

About Distress in Chronic Pain Conditions: A Pre–Post Study on the Effectiveness of a Mindfulness-Based Intervention for Fibromyalgia and Low Back Pain Patients

Chronic pain (CP) affects about 30% of the global population and poses significant challenges to individuals and healthcare systems worldwide. The interactions between physiological, psychological, and social factors are crucial in the onset and development of CP conditions. This study aimed to evaluate the effectiveness of mindfulness-based intervention, examining its impact on perceived stress (PSS), depression and anxiety (BDI-II, PGWBI/DEP, SAS, STAI Y), sleep quality (PSQI), and mindfulness abilities (MAAS) in individuals with CP. Participants (N = 89, 84.3% female) underwent one of two diagnoses [fibromyalgia (FM) or low back pain (LBP)] and took part in an MBSR intervention. The mindfulness program proved effective in reducing PSQI scores (F = 11.97; p < 0.01) over time, independently of the type of diagnosis. There was also a marginal increase in trait mindfulness as measured by MAAS (F = 3.25; p = 0.07) in both groups. A significant difference between the two groups was found for the effect on PSS: F (1,87) = 6.46; p < 0.05. Mindfulness practice also reduced anxiety in FM and depressive symptoms in LBP, indicating a reduction in psychological distress among participants. Our findings suggest that mindfulness-based interventions may offer promising avenues for personalized pain management in clinical settings.

Association of the Volumes of Limbic Brain Structures with the Development of Psychoneurological Disorders in Patients with Ischemic Stroke

Post-stroke depressive disorders (PSD) and post-stroke cognitive impairments (PCI) are frequent consequences of ischemic stroke (IS). The study was focused on exploring possible associations between relative volumes of cortical and limbic brain structures during the acute period of IS, and changes in biochemical indices of hypothalamic-pituitary-adrenal, sympathoadrenal medullary and inflammatory systems, with the development of PSD or PCI after mild or moderate IS. Patients developing PSD later on had significantly smaller relative volumes of the hippocampus, entorhinal cortex, and temporal pole versus patients without depressive symptoms. PCI development was associated with significantly smaller volumes of temporal pole and supramarginal gyrus versus patients without cognitive changes. Multiple logistic regression analysis showed higher likelihood of developing PSD in patients with smaller temporal pole volume (β0 =10.9; β = –4.27; p = 0.04) and in-creased salivary α-amylase activity (β0 = –3.55; β = 2.68e–05; p = 0.02). PCI likelihood was higher in patients with smaller supramarginal gyrus volume (β0 = 3.41; β = –0.99; p = 0.047), smaller temporal pole volume (β0 = 3.41; β = –3.12; p = 0.06), and increased hair cortisol concentration at admission (index of accumulated stress load within a month before IS; β0 = 3.41; β = –0.05; p = 0.08). The data support the hypothesis suggesting predisposition to PSD and PCI and multi hit scenarios of their pathogenesis with IS providing a final hit.

A behavioural test of depression-related probability bias

ABSTRACT Individuals high in depressive symptom severity show probability bias: they believe negative events are relatively probable, and positive events relatively improbable, compared to those with less severe symptoms. However, this has only ever been demonstrated using self-report measures, in which participants explicitly estimate events’ probabilities: this leaves open the risk that “probability bias” is merely an artefact of response bias. We tested the veracity of probability bias using an indirect behavioural measure, based on a sentence-reading task. Study 1 tested 112 Turkish students; Study 2 tested 117 international users of online groups for people with depressive and anxiety disorders. As predicted, participants with higher depressive symptom scores responded relatively quickly to sentences stating negative events might occur, and relatively slowly to sentences stating positive events might occur, compared to those with lower scores. This effect was only marginal in Study 1, but reached significance in Study 2. However, contrary to predictions, this effect was not moderated by the probability level stated in the sentence. This makes our findings difficult to interpret, and we must present these studies as a failure to convincingly demonstrate depression-related probability bias. We hope this stimulates more work on the nature and veracity of probability bias.

Prenatal exposure to genocide and subsequent adverse childhood events are associated with DNA methylation of SLC6A4, BDNF, and PRDM8 in early adulthood in Rwanda.

We investigated associations between prenatal genocidal trauma, including maternal rape, and postnatal adverse childhood experiences (ACEs) on DNA methylation of genes associated with the stress response. In a comparative cross-sectional study of 91 Rwandan young adults, categorized by prenatal exposure to genocide and maternal rape, genocide without rape, and unexposed controls, we analyzed DNA methylation from dried blood spots and assessed ACEs and depression and anxiety symptoms at age 24. Prenatal exposure to maternal rape was associated with DNA methylation changes in BDNF and SLC6A4, with the association in BDNF attenuated after including ACE exposure in the model. Genocide exposure without rape was associated with methylation changes in PRDM8 after adjusting for early adversity. Methylation in BDNF and SLC6A4 correlated with depression and anxiety symptoms. These findings underscore the impact of prenatal and postnatal trauma on DNA methylation and mental wellbeing, emphasizing the need for continued support for survivors in the decades after conflict.

Tramadol use for chronic pain management: A thorough analysis of safety, effectiveness, and clinical recommendations

Chronic pain, especially arthritis-related pain, represents a significant medical challenge worldwide. Tramadol, a centrally acting analgesic, has emerged as a valuable treatment option for managing chronic arthritis pain. This review article provides a comprehensive analysis of tramadol’s role in chronic pain management, emphasizing its safety, effectiveness, and clinical guidelines. Literature indicates that tramadol, whether used alone or in combination therapies, effectively treats various types of arthritis-related pain, such as musculoskeletal pain, osteoarthritis, and rheumatoid arthritis. While some clinical guidelines recommend tramadol as a first-line option for persistent knee or hip osteoarthritis, others urge caution due to concerns over potential abuse and negative effects. Tramadol’s mechanism of action involves, among other things, stimulation of opioid receptors and inhibition of serotonin and norepinephrine reuptake, contributing to its analgesic effects while attempting to minimize the side effects associated with traditional opioids. However, tramadol is not without side effects, including nausea, vomiting, constipation, respiratory depression, and withdrawal symptoms if it is suddenly discontinued. Despite these challenges, tramadol remains a valuable component in managing chronic pain, especially in patients with concurrent conditions and comorbidities. Further research is necessary to determine the optimal use of tramadol and to establish its risk-benefit profile across diverse patient populations.

ANÁLISE CORRELACIONAL DA DEPRESSÃO EM PACIENTES COM CÂNCER DE MAMA: REVISÃO INTEGRATIVA DE LITERATURA

Breast cancer is a neoplasm that affects more women than men and develops in the breast tissue. Depressive syndrome is one of the conditions that has contributed most to the increase in the global burden of health-related diseases, and is a condition closely related to cancer diagnosis. The aim of this study was to analyze the correlation of depressive disorder symptoms in breast cancer patients undergoing treatment. This study was developed through an integrative literature review (ILR) in the online databases VHL and PubMed, carried out between August and November 2024. The literature was searched according to the PICo strategy. The study of the data obtained was mediated according to the themes covered by the works acquired during the literature search. At the end of the filtering carried out according to the established exclusion and inclusion criteria, six publications were obtained, found in different journals and converging with the study objective. Five thematic categories were formed, which discuss prevalence; family support; mortality; genetic analysis and incidence during the COVID-19 pandemic. Thus, it can be said that depression and breast cancer are extremely interlinked, especially in patients in susceptible situations and with difficult family support and genetic predisposition.

Mental Health Risk and Protection Among First-Generation Latinx Immigrant Youth: A Latent Profile Analysis.

First-generation Latinx immigrant youth from the Northern Triangle (NT; El Salvador, Guatemala, and Honduras) face unique risks for experiencing stressors across the phases of migration, which could exacerbate their mental health. This study aimed to (a) identify and characterize unique latent profile groups based on response patterns to immigrant minority stress and psychosocial protective factor items and (b) examine the associations of latent profile membership with depression and anxiety symptoms among NT immigrant youth, controlling for study covariates (i.e., postmigration victimization and forced immigration-related family separation). Primary surveys assessing immigrant minority stress and psychosocial protective factors (i.e., ethnic identity importance, and family, peer, and school support) were administered (N = 172, age range = 14-21, 63% female). Latent profile analysis (Aim 1) and multiple linear regression (Aim 2) were conducted to examine the study aims. A three latent profile model was identified: (a) moderate immigrant minority stress and low psychosocial protection (weak resources), (b) moderate immigrant minority stress and moderate psychosocial protection (average resources), and (c) low immigrant minority stress and high psychosocial protection (strong resources) during postmigration. Multiple linear regression demonstrated that latent profile membership was significantly associated with mental health. Protective associations with mental health were consistently present among the strong resources group. Detrimental associations with mental health were consistently present among the weak resources group. The average resources group demonstrated both protective and detrimental associations with mental health. Postmigration victimization and forced immigration-related family separation covariates were significantly associated with mental health. Findings provide a foundation for further mental health prevention research with NT immigrant youth.

ACSL3 is a promising therapeutic target for alleviating anxiety and depression in Alzheimer's disease.

Alzheimer's disease (AD), the leading cause of dementia, affects over 55 million people worldwide and is often accompanied by depression and anxiety. Both significantly impact patients' quality of life and impose substantial societal and economic burdens on healthcare systems. Identifying the complex regulatory mechanisms that contribute to the psychological and emotional deficits in AD will provide promising therapeutic targets. Biosynthesis of omega-3 (ω3) and omega-6 fatty acids (ω6-FA) through long-chain acyl-CoA synthetases (ACSL) is crucial for cell function and survival. This is due to ω3/6-FA's imperative role in modulating the plasma membrane, energy production, and inflammation. While ACSL dysfunction is known to cause heart, liver, and kidney diseases, the role of ACSL in pathological conditions in the central nervous system (e.g., depression and anxiety) remains largely unexplored. The impact of ACSLs on AD-related depression and anxiety was investigated in a mouse model of Alzheimer's disease (3xTg-AD). ACSL3 levels were significantly reduced in the hippocampus of aged 3xTg-AD mice (via capillary-based immunoassay). This reduction in ACAL3 was closely associated with increased depression and anxiety-like behavior (via forced swim, tail suspension, elevated plus maze, and sucrose preference test). Upregulation of ACSL3 via adenovirus in aged 3xTg-AD mice led to increased protein levels of brain-derived neurotrophic factor (BDNF) and vascular endothelial growth factor C (VEGF-C) (via brain histology, capillary-based immunoassay), resulting in alleviation of depression and anxiety symptoms. The present study highlights a novel neuroprotective role of ACSL3 in the brain. Targeting ACSL3 will offer an innovative approach for treating AD-related depression and anxiety.

The Effect of Lifestyle Interventions on Anxiety, Depression and Stress: A Systematic Review and Meta-Analysis of Randomized Clinical Trials

Background/Objectives: Depression, anxiety, and stress are common mental health issues that affect individuals worldwide. This systematic review and meta-analysis examined the effectiveness of various lifestyle interventions including physical activity, dietary changes, and sleep hygiene in reducing the symptoms of depression, anxiety, and stress. Using stress as an outcome and conducting detailed subgroup analyses, this study provides novel insights into the differential effects of lifestyle interventions across diverse populations. Methods: Five databases were systematically searched: PubMed, Web of Science, Scopus, Cochrane Library, and Google Scholar, for gray literature searches. Keywords were used to search each database. The search period was from the conception of the databases until August 2023 and was conducted in English. For each analysis, Hedges’ g was reported with a 95% confidence interval (CI) based on the random-effects method. Subgroups were analyzed and heterogeneity and publication bias were examined. Results: Ninety-six randomized clinical trial studies were included in this meta-analysis. Lifestyle interventions reduced depression (Hedges g −0.21, 95% confidence interval −0.26, −0.15; p < 0.001; I2 = 56.57), anxiety (Hedges g −0.24, 95% confidence interval −0.32, −0.15; p < 0.001; I2 = 59.25), and stress (−0.34, −0.11; p < 0.001; I2 = 61.40). Conclusions: Lifestyle interventions offer a more accessible and cost-effective alternative to traditional treatments and provide targeted benefits for different psychological symptoms.

Microglia Sing the Prelude of Neuroinflammation-Associated Depression.

Major depressive disorder (MDD) is a psychiatric condition characterized by sadness and anhedonia and is closely linked to chronic low-grade neuroinflammation, which is primarily induced by microglia. Nonetheless, the mechanisms by which microglia elicit depressive symptoms remain uncertain. This review focuses on the mechanism linking microglia and depression encompassing the breakdown of the blood-brain barrier, the hypothalamic-pituitary-adrenal axis, the gut-brain axis, the vagus and sympathetic nervous systems, and the susceptibility influenced by epigenetic modifications on microglia. These pathways may lead to the alterations of microglia in cytokine levels, as well as increased oxidative stress. Simultaneously, many antidepressant treatments can alter the immune phenotype of microglia, while anti-inflammatory treatments can also have antidepressant effects. This framework linking microglia, neuroinflammation, and depression could serve as a reference for targeting microglia to treat depression.

Sharing in caring: Family caregiving task sharing patterns for older adults in Singapore.

Research on family caregiving for older adults has largely focused on primary caregivers. We identify caregiving task sharing patterns among multiple caregivers, including family members and live-in hired workers. In addition, we investigate caregiver and care-recipient characteristics associated with these patterns. We interviewed 278 primary family caregivers of home-dwelling older adults in Singapore about who provides what assistance across three domains: activities of daily living, health and social services use, and socio-emotional and other needs. Latent class analysis was used to identify caregiving task sharing patterns. Three patterns were identified: a) 'Shared-Diverse' (39%) - multiple caregivers assisting in all three domains, b) 'Shared-Domestic' (32%) - multiple caregivers assisting with activities of daily living and socio-emotional and other needs, and c) 'Solo-Diverse' (29%) - a sole caregiver assisting in all three domains. 'Solo-Diverse' caregivers were less likely to be employed and had higher depressive symptoms relative to 'Shared-Diverse' primary family caregivers. The predominance of caregiving task sharing patterns involving multiple caregivers calls for expansion of research, policies, and programs beyond primary caregivers. Greater attention should be given to how families and live-in hired workers share caregiving tasks for older adults, and how this varies across cultural settings, especially in familial Asian societies. The findings further highlight the vulnerabilities of solo caregivers, whose employment capacity and mental health may be adversely affected by their caregiving duties. Policymakers should ensure that solo caregivers have access to support programs that address their financial and mental health needs.

Aperiodic (1/f) neural activity robustly tracks symptom severity changes in treatment-resistant depression.

A reliable physiological biomarker for Major Depressive Disorder is essential for developing and optimizing neuromodulatory treatment paradigms. This study investigates a passive electrophysiologic biomarker that tracks changes in depressive symptom severity on the order of minutes to hours. We analyze brief recordings from intracranial electrodes implanted deep in the brain during a clinical trial of deep brain stimulation for treatment-resistant depression in 5 human subjects (nfemale= 3, nmale = 2). This surgical setting allows for precise temporal and spatial sensitivity in the ventromedial prefrontal cortex, a challenging area to measure. We focused on the aperiodic slope of the power spectral density, a metric reflecting the balance of activity across all frequency bands and serving as a proxy for excitatory/inhibitory balance in the brain. Our findings demonstrate that shifts in aperiodic slope correlate with depression severity, with flatter (less negative) slopes indicating reduced depression severity. This significant correlation was observed in all N=5 subjects, particularly in the ventromedial prefrontal cortex. This biomarker offers a new way to track patient responses to Major Depressive Disorder treatment, paving the way for individualized therapies in both intracranial and non-invasive monitoring contexts.