Journal of psychiatric research最新文献

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Associations of military sexual harassment and assault with nonsuicidal self-injury: Examining gender and sexual orientation as moderators 军队性骚扰和性侵犯与非自杀性自我伤害的关系:将性别和性取向作为调节因素进行研究。
IF 3.7 2区 医学
Journal of psychiatric research Pub Date : 2024-10-18 DOI: 10.1016/j.jpsychires.2024.10.015
{"title":"Associations of military sexual harassment and assault with nonsuicidal self-injury: Examining gender and sexual orientation as moderators","authors":"","doi":"10.1016/j.jpsychires.2024.10.015","DOIUrl":"10.1016/j.jpsychires.2024.10.015","url":null,"abstract":"<div><div>Military sexual harassment (MSH) and assault (MSA) are prevalent among service members and are linked to negative psychosocial outcomes, including self-directed violence. Veterans identifying as women or as sexual or gender minorities are at heightened risk for both MSH/MSA and self-directed violence, but their relationship remains understudied in these populations. We examined associations of MSH and MSA with nonsuicidal self-injury (NSSI) and tested whether relations varied by self-identified gender or sexual orientation in two national samples of U.S. veterans. Sample 1 included post-9/11 veterans who had recently discharged from service (n = 1,494); sample 2 included veterans from any service era (n = 1,187). Veterans self-reported MSH, MSA, gender identity and sexual orientation, and lifetime and past-month histories of NSSI. We estimated logistic regressions to examine the associations of MSH and MSA history with NSSI and evaluated gender (man or woman) and sexual orientation as moderators of these relations. Results suggested significant associations of both MSH and MSA with NSSI but largely failed to support moderation of these associations by either gender or sexual orientation identity. Screening for both MSH and MSA in veterans across gender and sexual orientation identities appears indicated in clinical assessment of NSSI.</div></div>","PeriodicalId":16868,"journal":{"name":"Journal of psychiatric research","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142502643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Suicidal behavior among Turkish physicians: Associations with negative life-events, psychological distress, and attitudes towards suicide 土耳其医生的自杀行为:与负面生活事件、心理困扰和自杀态度的关联。
IF 3.7 2区 医学
Journal of psychiatric research Pub Date : 2024-10-18 DOI: 10.1016/j.jpsychires.2024.10.016
{"title":"Suicidal behavior among Turkish physicians: Associations with negative life-events, psychological distress, and attitudes towards suicide","authors":"","doi":"10.1016/j.jpsychires.2024.10.016","DOIUrl":"10.1016/j.jpsychires.2024.10.016","url":null,"abstract":"<div><h3>Background</h3><div>Suicidal behavior among physicians is a significant concern globally, with various factors contributing to increased risk. Physicians in Türkiye are a group facing significant psychological distress due to challenging work conditions, economic instability, and violence in the healthcare system. Understanding the specific risk factors and attitudes contributing to this elevated suicidal behavior can inform the development of targeted interventions and support mechanisms for improving the well-being of physicians in Türkiye. This study aims to investigate suicidal behavior among Turkish physicians and its associations with adverse life events, psychological distress, and attitudes toward suicide.</div></div><div><h3>Method</h3><div>In the present study, 512 Turkish physicians from diverse demographics and professional backgrounds participated. Suicidal behavior, psychological distress, stressful life events, and attitudes toward suicide were explored through tailored instruments. Logistic regression analysis was conducted to identify independent risk factors for suicidal behavior.</div></div><div><h3>Results</h3><div>The results demonstrated that among Turkish physicians, psychological distress and suicidal behavior were frequent. One in five individuals (22.3%) reported experiencing one of the suicidal behaviors within the past month. Nearly one in ten (8.6%) have attempted suicide at some point in their lives. The average number of suicidal behaviors reported was .48 (SD = 1.1), and the average severity score for suicidal ideation was .51 (SD = 1.2). Young age, single marital status, low social support, psychological distress, the number of stressful life events, and the acceptability of suicide were identified as independent risk factors for suicidal behavior. Having a diagnosis of a psychiatric disorder and the number of stressful life events were factors associated with suicide attempts.</div></div><div><h3>Conclusion</h3><div>The intricate associations between several factors that influence suicidal behavior among Turkish physicians are elucidated by this study. The results highlight the critical need for focused interventions and systems of support within the Turkish healthcare system to deal with this serious public health concern. Future studies and therapeutic practices can better meet the mental health requirements of this vulnerable demographic by considering the complex nature of suicidal behavior among physicians.</div></div>","PeriodicalId":16868,"journal":{"name":"Journal of psychiatric research","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142502648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development progress of drugs for bipolar disorder: 75 Years after lithium proved effective 躁郁症药物的研发进展:锂剂被证明有效 75 年后。
IF 3.7 2区 医学
Journal of psychiatric research Pub Date : 2024-10-16 DOI: 10.1016/j.jpsychires.2024.10.011
{"title":"Development progress of drugs for bipolar disorder: 75 Years after lithium proved effective","authors":"","doi":"10.1016/j.jpsychires.2024.10.011","DOIUrl":"10.1016/j.jpsychires.2024.10.011","url":null,"abstract":"<div><div>Bipolar disorder, a psychiatric condition identified by significant mood changes and a considerable genetic connection with schizophrenia, needs continuous and extensive management due to its common onset in adolescence and significant impact on psychosocial activities. While traditional mood stabilizers continue to be widely used, the pursuit of more effective treatments remains ongoing, with the current research targeting various stages of the disorder. This study provides a thorough examination of new pharmacological treatments for bipolar disorder, which are currently in Phase II and Phase III clinical trials up to 22 April 2024. A systematic search was conducted using the NIH National Library of Medicine, focusing on both repurposed and innovative drugs now in advanced stages of testing. The study identifies several promising therapeutic agents, including those intended for severe mood disorders with suicidal tendencies, and others aimed at treating mood-related neuroinflammation. Drugs that enhance dopamine stabilization and those that act on serotonin receptor activities were found notable. We also explored the strategic repurposing of already existing medications for broader therapeutic uses and looked into the potential of new formulations designed for the immediate management of symptoms. Our analysis highlights two main strategies for tackling bipolar disorder: finding new uses for existing drugs and developing new medications with unique actions. This approach shows continuous improvement in drug treatments, helping patients manage their condition better and addressing the complicated nature of bipolar disorder.</div></div>","PeriodicalId":16868,"journal":{"name":"Journal of psychiatric research","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142468364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
“Validation of three scales for enhanced suicide prevention in Spanish-speaking populations: Suicidal ideation, stigma, and literacy” "在西班牙语人群中加强自杀预防的三个量表的验证:自杀意念、耻辱感和素养"。
IF 3.7 2区 医学
Journal of psychiatric research Pub Date : 2024-10-16 DOI: 10.1016/j.jpsychires.2024.10.013
{"title":"“Validation of three scales for enhanced suicide prevention in Spanish-speaking populations: Suicidal ideation, stigma, and literacy”","authors":"","doi":"10.1016/j.jpsychires.2024.10.013","DOIUrl":"10.1016/j.jpsychires.2024.10.013","url":null,"abstract":"<div><h3>Background</h3><div>Escalating suicide rates in Spain and Latin America underscore the critical need for accurate assessment and prevention tools tailored to these populations. This study aimed to culturally adapt and validate three essential scales: the Suicidal Ideation Attributes Scale (SIDAS), the Suicide Stigma Scale - Short Form (SOSS-SF), and the Suicide Literacy Scale - Short Form (LOSS-SF).</div></div><div><h3>Method</h3><div>A total of 678 participants (including 150 with suicidal ideation) completed an online survey. The scales underwent rigorous back-translation and adaptation by native speakers from Spain and Latin America. SIDAS and SOSS-SF were validated using Confirmatory Factor Analysis (CFA), with criteria including fit indices (e.g., RMSEA, CFI). LOSS-SF underwent validation through Item Response Theory (IRT). Additionally, gender invariance was assessed across all scales.</div></div><div><h3>Results</h3><div>CFA confirmed the original factor structures of SIDAS and SOSS-SF, demonstrating good fit indices and internal consistency. The analysis of LOSS-SF required excluding two items, resulting in a final Spanish version with 10 items and an unifactorial structure. Gender invariance was established across all scales.</div></div><div><h3>Conclusions</h3><div>The culturally adapted and validated scales in this study demonstrate robust reliability and validity for assessing suicidal ideation, suicide stigma, and suicide literacy among Spanish-speaking populations. These validated tools have the potential to enhance clinical assessment, inform personalized interventions, monitor public health initiatives, educate communities about suicide, and advance research in suicide prevention and treatment.</div></div>","PeriodicalId":16868,"journal":{"name":"Journal of psychiatric research","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142468362","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The mediation effect of the inferior-parietal cortex and globus pallidus on the relationship between family conflict and major depressive disorder 下顶叶皮层和球状苍白球对家庭冲突与重度抑郁障碍之间关系的中介效应。
IF 3.7 2区 医学
Journal of psychiatric research Pub Date : 2024-10-16 DOI: 10.1016/j.jpsychires.2024.10.014
{"title":"The mediation effect of the inferior-parietal cortex and globus pallidus on the relationship between family conflict and major depressive disorder","authors":"","doi":"10.1016/j.jpsychires.2024.10.014","DOIUrl":"10.1016/j.jpsychires.2024.10.014","url":null,"abstract":"<div><h3>Objective</h3><div>Family conflict is an important risk factor for major depressive disorder (MDD) and is associated with structural alterations in the brain. However, it is unclear whether structural alterations associated with family conflict would contribute to depression. This study aims to investigate the neuroimaging characteristics that connect family conflict with depression.</div></div><div><h3>Methods</h3><div>This study included 54 healthy controls and 53 antidepressant-free patients with MDD. Both groups completed the Beck Depression Inventory-II, the simplified Chinese version of the Family Environment Scale, and the Childhood Trauma Questionnaire. Structural Magnetic Resonance Imaging data was collected to measure cortical thickness and regional gray matter volumes.</div></div><div><h3>Results</h3><div>Family conflict has a significant effect on depression diagnosis. Higher levels of family conflict were positively associated with symptoms of <em>sadness</em>, <em>guilty feelings</em>, and <em>punishment feelings</em> in patients, as well as with cortical thickness in the right inferior-parietal cluster and the volumes of the left globus pallidus in all participants. In the patient group, cortical thickness in the right inferior-parietal cluster and volume of the left globus pallidus were negatively related to symptoms of <em>sadness</em> and <em>guilty feelings,</em> respectively. The structural alteration in the right inferior-parietal cluster mediated the relationship of family conflict and <em>sadness</em>, whereas changes in the globus pallidus mediated the associations between family conflict and both depression and <em>guilty feelings</em> in patients.</div></div><div><h3>Conclusion</h3><div>Findings revealed the relationships between family conflict and depression, including both depression diagnosis and specific symptoms. Cortical thickness in the right inferior-parietal cortex and the volume of the left globus pallidus played mediating roles in these relationships, indicating the important contributions of these brain regions to the effect of family conflict on depression.</div></div>","PeriodicalId":16868,"journal":{"name":"Journal of psychiatric research","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142502649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Neural correlates of thought–action fusion and their associations with rumination in patients with major depressive disorder 重度抑郁障碍患者思维与行动融合的神经相关性及其与反刍的关联。
IF 3.7 2区 医学
Journal of psychiatric research Pub Date : 2024-10-15 DOI: 10.1016/j.jpsychires.2024.10.005
{"title":"Neural correlates of thought–action fusion and their associations with rumination in patients with major depressive disorder","authors":"","doi":"10.1016/j.jpsychires.2024.10.005","DOIUrl":"10.1016/j.jpsychires.2024.10.005","url":null,"abstract":"<div><div>Thought<strong>-</strong>action fusion (TAF) is the metacognitive belief that the power of thoughts can have real-life consequences, often inducing unpleasant inner experiences and recruiting coping strategies such as rumination. Therefore, this study aimed to investigate the neural correlates of TAF and their associations with rumination in depression. A total of 37 patients with major depressive disorder (MDD) and 37 healthy controls (HCs) underwent functional magnetic resonance imaging with a TAF induction task and psychological assessments. In the TAF induction task, participants were asked to read the name of a close person (CP) or neutral person (NP) in association with negative (Neg) TAF and neutral (Neu) control statements. In this study, our TAF induction task activated brain regions, including the salient and default-mode networks, in the MDD and HC groups. However, along with higher likelihood TAF and rumination, behavioral data showed less negative feelings and longer reaction times under the NegCP condition in the MDD group compared with the HC group. Furthermore, in the MDD group, significantly higher activation in the bilateral caudate nuclei, left inferior frontal gyrus/anterior insula, putamen, and inferior parietal lobule under the NegCP condition was positively correlated with TAF and reflection. These findings suggest that during the TAF task, patients with MDD may activate different brain areas associated with the maintenance of high stimulus saliency and habit formation, which are important neural correlates linking TAF and rumination in depression.</div></div>","PeriodicalId":16868,"journal":{"name":"Journal of psychiatric research","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142468365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Self-compassion as a protective factor against post-traumatic stress symptoms induced by adverse childhood experiences: A cross-sectional study among Japan air self-defense force new recruits 自我同情是防止童年不良经历引发创伤后应激症状的保护因素:日本航空自卫队新兵横断面研究。
IF 3.7 2区 医学
Journal of psychiatric research Pub Date : 2024-10-15 DOI: 10.1016/j.jpsychires.2024.10.010
{"title":"Self-compassion as a protective factor against post-traumatic stress symptoms induced by adverse childhood experiences: A cross-sectional study among Japan air self-defense force new recruits","authors":"","doi":"10.1016/j.jpsychires.2024.10.010","DOIUrl":"10.1016/j.jpsychires.2024.10.010","url":null,"abstract":"<div><div>Adverse childhood experiences (ACEs) may result in long-term mental health complications, including post-traumatic stress disorder (PTSD). ACEs are known to be more frequent among military personnel, despite their need to maintain their mental health to accomplish their missions. Self-compassion, or treating oneself with kindness and understanding, can mitigate the psychological effects of adversity but is also affected by adversity. This cross-sectional study aimed to identify the complex relationships between ACEs, self-compassion, and PTSD symptoms among 752 new recruits of the Japan Air Self-Defense Force, of whom 537 with ACEs completed the PTSD Checklist for DSM-5. Hierarchical multiple regression analysis was used to examine the independent effect of self-compassion, measured using the Self-Compassion Scale, on PTSD symptoms. Mediation effect analysis with self-compassion as a mediator was conducted on the relationship between ACEs and PTSD symptoms. We confirmed high levels of ACEs among our participants compared to a healthy population of a previous study, and approximately 6% presented PTSD symptoms above a threshold. Self-compassion was significantly negatively associated with PTSD symptoms (<em>β</em> = −.22, 95% confidence interval [CI], −.34 to −.11). Mediation effect analysis revealed that self-compassion partially mediated the relationship between ACEs and PTSD symptoms, explaining 6.9% of this effect, and ACEs were negatively associated with self-compassion (<em>β</em> = −.13, 95% CI, −.22 to −.04). These findings suggested that self-compassion is a protective factor against PTSD symptoms, whereas ACEs can decrease self-compassion. Further research should explore educational interventions to enhance self-compassion among individuals with ACEs to mitigate PTSD symptoms.</div></div>","PeriodicalId":16868,"journal":{"name":"Journal of psychiatric research","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142502647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluation of MMP-9 enzyme in drug-induced suicide cases admitted to the emergency room 评估急诊室收治的药物自杀病例中的 MMP-9 酶
IF 3.7 2区 医学
Journal of psychiatric research Pub Date : 2024-10-15 DOI: 10.1016/j.jpsychires.2024.10.006
{"title":"Evaluation of MMP-9 enzyme in drug-induced suicide cases admitted to the emergency room","authors":"","doi":"10.1016/j.jpsychires.2024.10.006","DOIUrl":"10.1016/j.jpsychires.2024.10.006","url":null,"abstract":"<div><h3>Objective</h3><div>This study investigates MMP-9 enzyme levels in patients who attempted suicide by taking high doses of drugs, considering their sociodemographic characteristics.</div></div><div><h3>Methods</h3><div>The study included 45 patients who attempted suicide by high-dose drug intake admitted to the emergency room and 45 healthy volunteers with no neuropsychiatric disorders. Blood samples were collected to measure MMP-9 levels, and informed consent was obtained. The samples were centrifuged and analyzed using the ELISA method, with results statistically compared.</div></div><div><h3>Results</h3><div>Findings indicate that being single and a student significantly increased suicide tendencies (p = 0.002 and p = 0.001, respectively). Psychiatric disorders were the most common cause at 40.0%, followed by antidepressants (55.6%), analgesics (20.0%), and antidiabetics (8.9%) as the most used drugs for suicide. MMP-9 levels were significantly higher in patients who attempted suicide compared to controls (83.74 (±7.14) ng/mL vs. 54.97 (±12.27) ng/mL, p = 0.001). Additionally, MMP-9 levels were higher in single patients compared to married or divorced individuals (p = 0.008). MMP-9 levels were lower in patients with psychiatric disorders, recent psychiatric services, family history of psychiatric disorders, and previous suicide attempts (p = 0.014, p = 0.046, p = 0.035, p = 0.034).</div></div><div><h3>Conclusions</h3><div>This study shows MMP-9 enzyme can be a potential biomarker for drug-induced suicide attempts, emphasizing the importance of evaluating MMP-9 levels to assess suicide risk and develop prevention strategies.</div></div>","PeriodicalId":16868,"journal":{"name":"Journal of psychiatric research","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142444646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modulation effects of repetitive transcranial magnetic stimulation on target and indirect target nodes in patients with major depressive disorder 重复经颅磁刺激对重度抑郁障碍患者靶节点和间接靶节点的调节作用
IF 3.7 2区 医学
Journal of psychiatric research Pub Date : 2024-10-12 DOI: 10.1016/j.jpsychires.2024.10.012
{"title":"Modulation effects of repetitive transcranial magnetic stimulation on target and indirect target nodes in patients with major depressive disorder","authors":"","doi":"10.1016/j.jpsychires.2024.10.012","DOIUrl":"10.1016/j.jpsychires.2024.10.012","url":null,"abstract":"<div><div>Clinical studies intensively highlight two critical brain regions, i,e, dorsal lateral prefrontal cortex (DLPFC) (target node) and subgenual anterior cingulate cortex (sgACC) (indirect target node) for the treatment of neuroimaging-guided repetitive transcranial magnetic stimulation (rTMS) in major depressive disorder (MDD). However, it remains unclear whether the clinical rTMS treatment could modulate the activity of the target and indirect target nodes in MDD patients. We aim to identify the rTMS-induced alteration of brain local and functional connectivity (FC) activities in the target and indirect target nodes. 38 patients with MDD were recruited for taking part in the 2-week rTMS treatment. We identified left DLPFC and right sgACC as the target and indirect target nodes for each participant, using the neuroimaging guided method, and further explored the rTMS-induced modulation on the brain functional activity of the two nodes. Ultimately, 28 patients were included in the analysis. We found that subjects had significant improvement in depressive symptoms, and their brain functional activities were reorganized. rTMS reduced the FC activity between the target and indirect target nodes, while the brain local activity in these nodes did not show rTMS-induced changes. The FC reduction was not associated with improvement in depressive symptoms. These results confirmed the clinical significance of the target node (DLPFC) and indirect target node (sgACC) in the rTMS treatment of MDD, and further shed light on the brain functional reorganization underpinning clinical practice of rTMS.</div></div>","PeriodicalId":16868,"journal":{"name":"Journal of psychiatric research","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142444644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Breakdown of the blood-brain barrier in depressed mice induced by chronic unpredictable mild stress 慢性不可预测轻度应激诱发抑郁小鼠血脑屏障破裂
IF 3.7 2区 医学
Journal of psychiatric research Pub Date : 2024-10-11 DOI: 10.1016/j.jpsychires.2024.10.004
{"title":"Breakdown of the blood-brain barrier in depressed mice induced by chronic unpredictable mild stress","authors":"","doi":"10.1016/j.jpsychires.2024.10.004","DOIUrl":"10.1016/j.jpsychires.2024.10.004","url":null,"abstract":"<div><h3>Background</h3><div>Recent studies have suggested potential impairment of the blood-brain barrier (BBB) in depression. However, due to the limited research and variability in animal models, further investigation using diverse and stable models is necessary.</div></div><div><h3>Methods</h3><div>A male mouse model of depression was established using the chronic unpredictable mild stress (CUMS) protocol. Following model establishment, depression-like behaviors were assessed using the sucrose preference test, tail suspension test, and forced swimming test. Morphological changes in the hippocampus were examined through hematoxylin-eosin staining. BBB permeability was evaluated using the Evans blue leakage test, fluorescein sodium (NaF) leakage test, and serum S100B content assessment. Gene and protein expression levels of BBB-related proteins in the hippocampus were determined via real-time PCR, western blotting, and immunofluorescence assays.</div></div><div><h3>Results</h3><div>CUMS exposure induced depression-like behaviors, including reduced body weight gain, diminished sucrose preference, and prolonged immobility in both the tail suspension test and forced swimming test. While no significant pathological changes were observed in the hippocampus of either group, increased BBB permeability was noted in the CUMS group, as evidenced by enhanced NaF leakage into the brain parenchyma and elevated serum S100B levels. Gene expression analysis revealed downregulation of angiogenesis-related genes and tight junction proteins in the CUMS group. Additionally, protein levels of tight junction proteins Claudin-5 and ZO-1 were lower in the CUMS group compared to controls.</div></div><div><h3>Limitations</h3><div>This study is limited to a male mouse model, and the BBB in females is worth exploring in the future.</div></div><div><h3>Conclusions</h3><div>Increased BBB permeability and decreased expression of tight junction proteins Claudin5 and ZO-1 were observed in mice with CUMS-induced depression.</div></div>","PeriodicalId":16868,"journal":{"name":"Journal of psychiatric research","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142442604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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