Relationships between chronic pain and mood symptoms among veterans with bipolar disorder

Chronic REM sleep deprivation leads to manic- and OCD-related behaviors, and decreases hippocampal BDNF expression in female rats

BACKGROUND

Rapid-eye movement (REM) sleep deprivation (SD) can induce manic-like behaviors in rodents. On the other hand, lithium, as one of the oldest drugs used in neuropsychiatric disorders, is still one of the best drugs for the treatment and control of bipolar disorder. In this study, we aimed to investigate the role of chronic short-term REM SD in the induction of manic-like behaviors in female rats.

METHODS

The rats were exposed to REM SD for 14 days (6 hours/day). Lithium was intraperitoneally injected at the doses of 10, 50, and 100 mg/kg.

RESULTS

REM SD induced hyperactivity and OCD-like behavior, and decreased anxiety, depressive-like behavior, and pain subthreshold. REM SD also impaired passive avoidance memory and decreased hippocampal brain-derived neurotrophic factor (BDNF) expression level. Lithium at the doses of 50 and 100 mg/kg partly and completely abolished these effects, respectively. However, lithium (100 mg/kg) increased BDNF expression level in control and sham REM SD rats with no significant changes in behavior.

CONCLUSIONS

Chronic short-term REM SD may induce a mania-like model and lead to OCD-like behavior and irritability. In the present study, we demonstrated a putative rodent model of mania induced by chronic REM SD in female rats. We suggest that future studies should examine behavioral and mood changes following chronic REM SD in both sexes. Furthermore, the relationship between manic-like behaviors and chronic REM SD should be investigated.

Global trends and hotspots in pain associated with bipolar disorder in the last 20 years: a bibliometric analysis

Purpose

The prevalence of comorbid pain and Bipolar Disorder in clinical practice continues to be high, with an increasing number of related publications. However, no study has used bibliometric methods to analyze the research progress and knowledge structure in this field. Our research is dedicated to systematically exploring the global trends and focal points in scientific research on pain comorbidity with bipolar disorder from 2003 to 2023, with the goal of contributing to the field.

Methods

Relevant publications in this field were retrieved from the Web of Science core collection database (WOSSCC). And we used VOSviewer, CiteSpace, and the R package "Bibliometrix" for bibliometric analysis.

Results

A total of 485 publications (including 360 articles and 125 reviews) from 66 countries, 1019 institutions, were included in this study. Univ Toront and Kings Coll London are the leading research institutions in this field. J Affect Disorders contributed the largest number of articles, and is the most co-cited journal. Of the 2,537 scholars who participated in the study, Stubbs B, Vancampfort D, and Abdin E had the largest number of articles. Stubbs B is the most co-cited author. "chronic pain," "neuropathic pain," "psychological pain" are the keywords in the research.

Conclusion

This is the first bibliometric analysis of pain-related bipolar disorder. There is growing interest in the area of pain and comorbid bipolar disorder. Focusing on different types of pain in bipolar disorder and emphasizing pain management in bipolar disorder are research hotspots and future trends. The study of pain related bipolar disorder still has significant potential for development, and we look forward to more high-quality research in the future.

Barriers to accessing pain management services among veterans with bipolar disorder

OBJECTIVE

To identify barriers veterans with bipolar disorder face to accessing chronic pain management services within a Veterans Affairs (VA) health care system.

DATA SOURCES AND STUDY SETTING

Veterans (n = 15) with chronic pain and bipolar disorder and providers (n = 15) working within a mid-Atlantic VA health care system. Data were collected from August 2017-June 2018.

STUDY DESIGN

Veteran interviews focused on their chronic pain experiences and treatment, including barriers that arose when trying to access pain management services. Provider interviews focused on whether they address chronic pain with veteran patients and, if so, what considerations arise when addressing pain in veterans with bipolar disorder and other serious mental illnesses.

DATA COLLECTION

Veterans were at least 18 years old, had a confirmed bipolar disorder and chronic pain diagnosis, and engaged in outpatient care within the VA health care system. Clinicians provided direct care services to veterans within the same VA. Interviews lasted approximately 60 min and were transcribed and analyzed using a rapid analysis protocol.

PRINCIPAL FINDINGS

Four major themes emerged from veteran and provider interviews: siloed care (unintegrated and uncoordinated mental and physical health care), mental health primacy (prioritization of mental health symptoms at expense of physical health symptoms), lagging expectations (unfamiliarity with comprehensive evidence-based pain management options), and provider-patient communication concerns (inefficient communication about pain concerns and treatment options).

CONCLUSIONS

Veterans with co-occurring pain and bipolar disorder face unique barriers that compromise equitable access to evidence-based pain treatment. Our findings suggest that educating providers about bipolar disorder and other serious mental illnesses and the benefit of effective non-pharmacological pain interventions for this group may improve care coordination and care quality and reduce access disparities.

Brain-predicted age difference mediates the association between PROMIS sleep impairment, and self-reported pain measure in persons with knee pain

Knee pain, the most common cause of musculoskeletal pain (MSK), constitutes a severe public health burden. Its neurobiological causes, however, remain poorly understood. Among many possible causes, it has been proposed that sleep problems could lead to an increase in chronic pain symptomatology, which may be driven by central nervous system changes. In fact, we previously found that brain cortical thickness mediated the relationship between sleep qualities and pain severity in older adults with MSK. We also demonstrated a significant difference in a machine-learning-derived brain-aging biomarker between participants with low-and high-impact knee pain. Considering this, we examined whether brain aging was associated with self-reported sleep and pain measures, and whether brain aging mediated the relationship between sleep problems and knee pain. Exploratory Spearman and Pearson partial correlations, controlling for age, sex, race and study site, showed a significant association of brain aging with sleep related impairment and self-reported pain measures. Moreover, mediation analysis showed that brain aging significantly mediated the effect of sleep related impairment on clinical pain and physical symptoms. Our findings extend our prior work demonstrating advanced brain aging among individuals with chronic pain and the mediating role of brain-aging on the association between sleep and pain severity. Future longitudinal studies are needed to further understand whether the brain can be a therapeutic target to reverse the possible effect of sleep problems on chronic pain.

Social and Psychological Rehabilitation of War Veterans

The subject of the study is determined by the need for effective rehabilitation of war veterans and the presence of many problems of sociopsychological recovery after being in the zone of active combat operations, and the need to develop an effective rehabilitation programme for this category of people. The purpose of the study is to conduct a comprehensive analysis of the features of socio-psychological rehabilitation, identify the relationship of physiological states with individual psychological components of the individual’s functioning in specific conditions of life, determine which measures are most effective for the establishment of areas of work in the aspect of socio-psychological rehabilitation of war veterans. The basis of the methodological approach in this study is the analysis and generalisation based on the results of the examination of scientific and theoretical material, which determines the establishment of conclusions and recommendations in the field under study. The following methods of scientific knowledge are used: dialectical, logical-semantic, system-structural, functional, and logicalnormative. The study proves the direct connection between the presence of a person in a war zone and their psychoemotional state. It is considered which psychophysiological disorders can be caused by involvement in armed conflicts. The conclusion is formulated that participants in military operations need social and psychological rehabilitation, and problematic issues and prospects for rehabilitation are outlined. Specific medical and socio-psychological aspects are highlighted, the avoidance or generation of which will help in the process of rehabilitation of military personnel and their families. It was identified that although psychological rehabilitation is generally conducted, it requires more government support, popularisation, and wider involvement of both war veterans and experts. Ways to improve approaches to providing psychological assistance to military personnel and their families in Ukraine are proposed. The conclusions of the study are of substantial importance for psychologists and social workers, psychology students and teaching staff of psychology faculties as a doctrinal basis for the educational process

Pain management in people with severe mental illness: an agenda for progress

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