The Trier Social Stress Test (TSST) is a standard laboratory stressor comprised of a speech and arithmetic tasks that reliably induces physiological and psychological stress. It is traditionally administered in a room where the participant takes part in the TSST in front of two "committee" members. However, due to the recent Coronavirus disease (COVID-19) pandemic, in-person research study procedures have been limited due to potential exposure risks. Since stress reactivity is associated with drug use and the TSST reliably increases stress reactivity among cannabis users, the present pilot study examined a "remote" version of the TSST using the cloud-based virtual video communications platform, Zoom, among cannabis-using individuals ( = 15). The use of a remote platform such as Zoom allowed the participant and the committee to interact in real time while limiting in-person contact. The primary aim of this study was to test the feasibility of a remote version of the TSST in producing an increase in subjective stress response, cannabis craving, and cardiovascular stress in individuals who use cannabis. Participants completed subjective effects questionnaires and had blood pressure (BP) assessed before (baseline) and at various time points after the TSST. Heart rate (HR) was continuously measured throughout the session. This remote version of the TSST significantly and robustly increased State Anxiety and Perceived Stress scores, BP, and HR compared to baseline. There was no effect of the remote TSST on cannabis craving. Overall, the remote version of the TSST appears to be an effective laboratory stressor for future stress reactivity studies. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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Transl Psychiatry
January 2025
Genetic Epidemiology Group, Department of Psychiatry, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands.
Experiencing a traumatic event may lead to Posttraumatic Stress Disorder (PTSD), including symptoms such as flashbacks and hyperarousal. Individuals suffering from PTSD are at increased risk of cardiovascular disease (CVD), but it is unclear why. This study assesses shared genetic liability and potential causal pathways between PTSD and CVD.
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Yunnan Key Laboratory of Integrated Traditional Chinese and Western Medicine for Chronic Disease in Prevention and Treatment, Key Laboratory of Acupuncture and Massage for Treatment of Encephalopathy, College of Acupuncture, Tuina and Rehabilitation, Yunnan University of Traditional Chinese Medicine, Kunming, China.
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Institute of Medical Science, Ajou University School of Medicine, Suwon, Gyeonggi 16499, Republic of Korea; Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, Gyeonggi 16499, Republic of Korea. Electronic address:
Oxidative stress caused by reactive oxygen species (ROS) and superoxides is linked to various cancer-related biological events. Extracellular superoxide dismutase (SOD3), an antioxidant enzyme that removes superoxides, contributes to redox homeostasis and has the potential to regulate tumorigenesis. Histone deacetylase 6 (HDAC6), a major HDAC isoform responsible for mediating the deacetylation of non-histone protein substrates, also plays a role in cancer progression.
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Pharmacy School, Jinzhou Medical University, Jinzhou, China; Liaoning Provincial Collaborative Innovation Center for Medical Testing and Drug Research, Jinzhou Medical University, Jinzhou, China; Key Laboratory of Medical Tissue Engineering of Liaoning Province, Jinzhou Medical University, Jinzhou, China. Electronic address:
In this study, we developed calcium alginate-coated nanovesicles derived from macrophage membranes loaded with berberine (Ber@MVs-CA) for the oral treatment of ulcerative colitis (UC). Ber@MVs-CA demonstrates resistance to gastric acid and controlled drug release in the colonic pH environment, while actively targeting sites of ulcerative colitis injury. pH-responsive release of Ber in Ber@MVs-CA was confirmed through in vitro release experiments.
View Article and Find Full Text PDFNeurosci Biobehav Rev
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Department of Psychiatry and Psychotherapy, Philipps University Marburg, Rudolf-Bultmann-Str. 8, 35039 Marburg, Germany; Center for Mind, Brain and Behaviour, Philipps University Marburg, Hans-Meerwein-Str. 6, 35032 Marburg, Germany. Electronic address:
Recurrent psychosocial stress poses a significant health challenge, prompting research into mechanisms of successful adaptation. Physiological habituation, defined as decreased reactivity to repeated stressors, is pivotal in protecting the organism from allostatic load. Here, we systematically review and meta-analyze data from studies investigating the capacity of central stress systems to habituate when repeatedly exposed to a standardized psychosocial stressor, the Trier Social Stress Test (k=47).
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