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Rapid Decrease and Subsequent Increase in the Serum Triglycerides Accompanied by CD36 Transcript Increase in an acute stress Mice Model

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Journal of Biosciences and Medicines 2022年第10期10卷 98-107页

作者： Reiko Seki Riku Miyawaki Akane Matsuda Kazuhisa Nishizawa Teikyo University School of Medical Technology Tokyo Japan Biomolecular Logic Research Laboratory Tokyo Japan

In this article, we report the changes in serum triglyceride (TG) levels that occurred during repeated tail blood sampling using a mouse restrainer. We used three groups of mice, namely, “PBS-restrained” “PBS-unrestrained” and “mock-restrained”. The mice in the PBS-restrained and PBS-unrestrained groups were intraperitoneally (i.p.) injected with 100 mL PBS and tail blood sampling was performed at 1, 5, 8, 24, and 48 h after i.p. injection. For the mock-restrained group, no i.p. injection was performed whereas the subsequent tail blood sampling was similarly performed. During the tail blood sampling, the mice of the two “restrained” groups were placed inside the restrainer designed from an open-ended 50 mL conical tube. The blood from the mice in the PBS-unrestrained group mice was sampled from the tail held by the operator’s hands while being allowed to move on a stage. Strikingly, in all of the three groups, the serum TG level initially decreased to remarkably low levels (approximately 30 mg/dL) after several blood samplings were performed over 8 h. This decrease was followed by a 2 - 3-fold increase in the levels relative to that in the control mice in the subsequent 24 - 48 h time period. We concluded that the acute stress associated with blood sampling caused alterations in TG levels. Serum levels of free fatty acid showed only modest changes. Changes in TG levels were not associated with serum corticosterone levels but with a dramatic increase in CD36 transcript levels in the liver. The relevance of this finding to the previously reported release of lipoprotein lipase (LPL) from white fatty tissue into the plasma during acute stress is also discussed.

关键词： acute stress Lipoprotein Lipase CD36 Plasma Triglyceride

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Relationship between acute stress and sleep disorder in grass-root military personnel:Mediating effect of social support

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Journal of Medical Colleges of PLA(China) 2014年第1期29卷 32-36页

作者： Qi-Jun Zhang Qiao-Li Zhang Xin-Yang Sun Li-Yi Zhang Si-Yuan Zhang Gao-Feng Yao Chun-Xia Chen Ling-Ming Kong Department of Psychology 92919 Military Hospital Jiangbei District Department of Psychology The Second Military Medical University Prevention and Treatment Centre for Psychological Diseases of PLA the PLA 102nd Hospital Public Health Division of Joint Logistics Department Nanjing Military Area Command

Background: To explore the relationship between acute stress, social support and sleep disorder in grass-root military personnel, and construct the relational model through structural equation modeling. Methods: A total of 2,411 grass-root military personnel were randomly selected by cluster sampling, and administered the Chinese Military Personnel Sleep Disorder Scale, Military acute stress Scale and Social Support Rating ***: The total score of acute stress scale was positively correlated with the total score and factor scores of sleep disorder scale(r=0.209~0.465, Pacute stress scale and the total score and factor scores of sleep disorder scale(r=0.356~0.537, Pacute stress and the factors of sleep disorder. The analysis of structural equation model showed that acute stress not only had a direct effect on sleep disorder(the path coefficient was 0.29, P=0.000), but also on lack of social support(the path coefficient was 0.39, P=0.000); lack of social support had a direct effect on sleep disorder(the path coefficient was 0.48, P=0.000).Conclusions: acute stress and lack of social support are two significant factors of sleep disorder in grass-root military personnel. Well-established social support could alleviate sleep disorder induced by acute stress. Lack of social support was a partial mediator between acute stress and sleep disorder.

关键词： grass-root military personnel acute stress social support sleep disorder structural equation model

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Pancreatic Enzymes Activity under the Conditions of acute stress and Melanin Administration Depending on the stress Resistance

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Journal of Pharmacy and Pharmacology 2015年第5期3卷 232-236页

作者： Nataliya Slobodyanyk Tetyana Beregova Karine Neporada Ukrainian Medical StomatologicalAcademy Poltava 36000 Ukraine Taras Shevchenko National University of Kyiv Kyiv 02140 Ukraine

Total proteolytic, antitrypsic, amylase and lypolytic activity was studied on animals subjected to acute stress simulation. acute stress results in the development of imbalance of protease inhibitors potential as well as in the increase of amylase and lipase activity in the pancreas of the rats. Prior melanin administration in acute stress leads to a decrease in the activity of amylase and lipase, and an increase of total activity of protease inhibitors, that demonstrates stress-protective melanin effect produced on the pancreas.

关键词： Pancreas stress resistance acute stress enzymes melanin.

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acute pancreatitis:The stress factor

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World Journal of Gastroenterology 2014年第19期20卷 5801-5807页

作者： Marcelo G Binker Laura I Cosen-Binker CBRHC Research Center 1053 Ciudad Autónoma de Buenos AiresBuenos Aires 1426Argentina Department of Molecular and Cell Biology Henry M Goldman School of Dental MedicineBoston UniversityBostonMA 02118United States

acute pancreatitis is an inflammatory disorder of the pancreas that may cause life-threatening *** of pancreatitis vary,with gallstones accounting for the majority of all cases,followed by *** causes of pancreatitis include trauma,ischemia,mechanical obstruction,infections,autoimmune,hereditary,and *** main events occurring in the pancreatic acinar cell that initiate and propagate acute pancreatitis include inhibition of secretion,intracellular activation of proteases,and generation of inflammatory *** cytokines known as chemokines are released from damaged pancreatic cells and attract inflammatory cells,whose systemic action ultimately determined the severity of the ***,severe forms of pancreatitis may result in systemic inflammatory response syndrome and multiorgan dysfunction syndrome,characterized by a progressive physiologic failure of several interdependent organ *** occurs when homeostasis is threatened,and stressors can include physical or mental forces,or combinations of *** on the timing and duration,stress can result in beneficial or harmful *** it is well established that a previous acute-short-term stress decreases the severity of experimentally-induced pancreatitis,the worsening effects of chronic stress on the exocrine pancreas have received relatively little *** review will focus on the influence of both prior acute-short-term and chronic stress in acute pancreatitis.

关键词： Pancreatitis acute stress Chronic stress Heat shock proteins Tumor necrosis factor alpha

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Neural and Behavioral Measures of stress-induced Impairment in Error Awareness and Post-error Adjustment

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Neuroscience Bulletin 2024年第7期40卷 937-951页

作者： Na Hu Quanshan Long Xiaoxi Wang Quan Li Qing Li Antao Chen School of Preschool and Special Education Kunming UniversityKunming 650214China Faculty of Education Yunnan Normal UniversityKunming 650214China College of Teacher Education Qujing Normal UniversityQujing 655099China Key Laboratory of Cognition and Personality of Ministry of Education Faculty of PsychologySouthwest UniversityChongqing 400715China School of Psychology Shanghai University of SportShanghai 200438China

Exposure to stress negatively affects error processing,but the impact of stress on error awareness remains to be *** the present study,we examined the temporal dynamics of error awareness and post-error adjustment following acute ***-nine healthy men were randomly assigned to the control(n=26)or stress group(n=23).After stress induction,participants completed the error awareness task,and their brain activity was assessed by *** to the control group,the stress group demonstrated lower error awareness accuracy and smaller Pe(error positivity)and ΔPe amplitudes following aware error responses,which indicated impairment of error awareness following ***,the stress group had lower accuracy in post-aware error responses than in post-unaware error responses and the control group,which indicated poor post-error adjustment following *** results showed a stress effect on sequential stages of error *** induces impaired error identification,which further generates maladaptive post-error performance.

关键词： acute stress Error awareness Post-error adjustment Error positivity

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Distinct Effects of Social stress on Working Memory in Obsessive-Compulsive Disorder

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Neuroscience Bulletin 2021年第1期37卷 81-93页

作者： Qianqian Li Jun Yan Jinmin Liao Xiao Zhang Lijun Liu Xiaoyu Fu Hao Yang Tan Dai Zhang Hao Yan Peking University Sixth Hospital Beijing 100191China Peking University Institute of Mental Health National Health Commission Key Laboratory of Mental Health(Peking University)National Clinical Research Center for Mental Disorders(Peking University Sixth Hospital)Beijing 100191China Tsinghua University-Peking University Joint Center for Life Sciences Beijing 100871China PKU-IDG/McGovem Institute for Brain Research Peking UniversityBeijing 100871China Lieber Institute for Brain Development BaltimoreMD 21205USA Department of Psychiatry and Behavioral Sciences Johns Hopkins University School of MedicineBaltimoreMD 21205USA

stress might exaggerate the compulsion and impair the working memory of patients with obsessivecompulsive disorder(OCD). This study evaluated the effect of stress on the cognitive neural processing of working memory in OCD and its clinical significance using a ‘‘number calculation working memory'' task. Thirty-eight patients and 55 gender-and education-matched healthy controls were examined. stress impaired the performance of the manipulation task in patients. Healthy controls showed less engagement of the medial prefrontal cortex and striatum during the task under stress versus less stress,which was absent in the patients with OCD. The diagnosis 9 stress interaction effect was significant in the right fusiform, supplementary motor area, precentral cortex and caudate. The failure of suppression of the medial prefrontal cortex and striatum and stress-related hyperactivation in the right fusiform, supplementary motor area, precentral cortex, and caudate might be an OCD-related psychopathological and neural response to stress.

关键词： Working memory acute stress Obsessive-compulsive disorder Functional magnetic resonance imaging

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Fear of COVID-19 and emotional dysfunction problems:Intrusive,avoidance and hyperarousal stress as key mediators

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World Journal of Psychiatry 2022年第8期12卷 1088-1101页

作者： Raquel Falcó Verónica Vidal-Arenas Jordi Ortet-Walker Juan C Marzo JoséA Piqueras PSICO-RECURSOS COVID-19 Study Group Department of Health Psychology and Center for Applied Psychology Universidad Miguel HernándezElche 03202AlicanteSpain Department of Basic and Clinical Psychology and Psychobiology Universitat Jaume ICastellóde la Plana 12071CastellónSpain

BACKGROUND There is mounting empirical evidence of the detrimental effects of the coronavirus disease 2019(COVID-19)outbreak on mental *** research has underscored the effects of similar destabilizing situations such as war,natural disasters or other pandemics on acute stress levels which have been shown to exacerbate current and future psychopathological *** To explore the role of acute stress responses(intrusive,avoidance and hyperarousal)as mediators in the association between fear of COVID-19 and emotional dysfunction-related problems:Depression,agoraphobia,panic,obsessivecompulsive,generalized anxiety,social anxiety and health anxiety *** A sample of 439 participants from a university community in Spain(age:mean±SD:36.64±13.37;73.1%females)completed several measures assessing their fear of COVID-19,acute stress responses and emotional dysfunction syndromes through an online *** collection was carried out from the start of home confinement in Spain until May 4,2020,coinciding with initial de-escalation *** of the dataset included descriptive and frequency analyses,Mann-Whitney U Test of intergroup comparisons and path analysis for direct and indirect *** is an observational,descriptive-correlational and crosssectional *** The prevalence of clinical symptoms in our sample,reported since the beginning of the pandemic,reached 31.44%.The female group presented higher scores although the effect size was ***,the participants who exceeded the clinical cut-off points in emotional problems showed higher levels of fear of COVID-19 and of cognitive,motor and psychophysiological responses of acute stress,unlike the group with normative *** addition,the results show significant mediated effects of hyperarousal stress among fear of COVID-19 and emotional dysfunction ***,the clinical syndromes most related to the consequences of the pandemic(e.g.,social contact avoi

关键词： Fear of COVID-19 acute stress Emotional dysfunction Psychophysiological activation Mediated effects

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