Chemicals in the aquatic environment can be harmful to organisms and ecosystems. Knowledge on effect concentrations as well as on mechanisms and modes of interaction with biological molecules and signaling pathways is necessary to perform chemical risk assessment and identify toxic compounds. To this end, we developed criteria and a pipeline for harvesting and summarizing effect concentrations from the US ECOTOX database for the three aquatic species groups algae, crustaceans, and fish and researched the modes of action of more than 3,300 environmentally relevant chemicals in literature and databases.
View Article and Find Full Text PDFIntroduction: Behavioral activation (BA) is effective for the treatment of depression. The Health Action Process Approach (HAPA), which is derived from health psychology, can provide a motivational-volitional framework of BA.
Objective: This study investigated the efficacy of a HAPA-based internet-delivered BA intervention (iBA; called InterAKTIV) in individuals with depression, also assessing HAPA-based motivational and volitional outcomes.
Almost all mitochondrial proteins are synthesized in the cytosol and subsequently targeted to mitochondria. The accumulation of nonimported precursor proteins occurring upon mitochondrial dysfunction can challenge cellular protein homeostasis. Here we show that blocking protein translocation into mitochondria results in the accumulation of mitochondrial membrane proteins at the endoplasmic reticulum, thereby triggering the unfolded protein response (UPR).
View Article and Find Full Text PDFBackground: Behavioral activation is an effective treatment for reducing depression. As depressive disorders affect many people worldwide, internet-based behavioral activation (iBA) could provide enhanced treatment access.
Objective: This study aimed to investigate whether iBA is effective in reducing depressive symptoms and to assess the impact on secondary outcomes.
Hundreds of nucleus-encoded mitochondrial precursor proteins are synthesized in the cytosol and imported into mitochondria in a post-translational manner. However, the early processes associated with mitochondrial protein targeting remain poorly understood. Here, we show that in Saccharomyces cerevisiae, the cytosol has the capacity to transiently store mitochondrial matrix-destined precursors in dedicated deposits that we termed MitoStores.
View Article and Find Full Text PDFIn this study, 56 effluent samples from 52 European wastewater treatment plants (WWTPs) were investigated for the occurrence of 499 emerging chemicals (ECs) and their associated potential risks to the environment. The two main objectives were (i) to extend our knowledge on chemicals occurring in treated wastewater, and (ii) to identify and prioritize compounds of concern based on three different risk assessment approaches for the identification of consensus mixture risk drivers of concern. Approaches include (i) PNEC and EQS-based regulatory risk quotients (RQs), (ii) species sensitivity distribution (SSD)-based hazard units (HUs) and (iii) toxic units (TUs) for three biological quality elements (BQEs) algae, crustacean, and fish.
View Article and Find Full Text PDFIntroduction: Behavioural activation is a highly effective treatment for depression. However, there is considerable heterogeneity of interventions grouped under the term 'behavioural activation'. A main reason for the heterogeneity is the lack of a unified theory in the intervention development: few of the established intervention manuals give a theoretical rationale for their intervention techniques.
View Article and Find Full Text PDFThe formation of protein aggregates is a hallmark of neurodegenerative diseases. Observations on patient samples and model systems demonstrated links between aggregate formation and declining mitochondrial functionality, but causalities remain unclear. We used Saccharomyces cerevisiae to analyze how mitochondrial processes regulate the behavior of aggregation-prone polyQ protein derived from human huntingtin.
View Article and Find Full Text PDFBackground: Many students in Germany do not meet recommended amounts of physical activity. In order to promote physical activity in students, web-based interventions are increasingly implemented. Yet, data on effectiveness of web-based interventions in university students is low.
View Article and Find Full Text PDFBackground: Physical inactivity is a major contributor to the development and persistence of chronic diseases. Mobile health apps that foster physical activity have the potential to assist in behavior change. However, the quality of the mobile health apps available in app stores is hard to assess for making informed decisions by end users and health care providers.
View Article and Find Full Text PDFIntroduction: Psychotherapy is a first-line treatment for depression. However, capacities are limited, leading to long waiting times for outpatient psychotherapy in health care systems. Web-based interventions (WBI) could help to bridge this treatment gap.
View Article and Find Full Text PDFMost mitochondrial proteins are synthesized as precursors in the cytosol and post-translationally transported into mitochondria. The mitochondrial surface protein Tom70 acts at the interface of the cytosol and mitochondria. In vitro import experiments identified Tom70 as targeting receptor, particularly for hydrophobic carriers.
View Article and Find Full Text PDFBackground: Physiotherapists promote physical activity and exercise, yet patient adherence is often poor. To support patient adherence, behavior change techniques (BCTs) should be applied. These are insufficiently covered in physiotherapy curricula.
View Article and Find Full Text PDFMost mitochondrial proteins are synthesized in the cytosol and subsequently translocated as unfolded polypeptides into mitochondria. Cytosolic chaperones maintain precursor proteins in an import-competent state. This post-translational import reaction is under surveillance of the cytosolic ubiquitin-proteasome system, which carries out several distinguishable activities.
View Article and Find Full Text PDFObjective: In Germany, waiting times for outpatient psychotherapy are on average 5 months long. Guided web-based interventions can be implemented to reduce depressive symptoms during waiting times. The study aims to explore how patients experience the usage of a web-based intervention for mood enhancement.
View Article and Find Full Text PDFThe biogenesis of mitochondria requires the import of hundreds of precursor proteins. These proteins are transported post-translationally with the help of chaperones, meaning that the overproduction of mitochondrial proteins or the limited availability of chaperones can lead to the accumulation of cytosolic precursor proteins. This imposes a severe challenge to cytosolic proteostasis and triggers a specific transcription program called the mitoprotein-induced stress response, which activates the proteasome system.
View Article and Find Full Text PDFBundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz
August 2019
Background: In Germany, there is widespread use of smartphones that can be operated via voice assistants (VAs). Due to their increasing distribution, they hold the potential to influence health behavior at a population level.
Objectives: This study examines the response behavior of German-speaking VAs to questions on mental and physical health as well as interpersonal violence.
In the version of this article originally published, parts of Figure 5 were misaligned because of a shift during production. In a, one data point was outside of the graph border. In b, axes lines were not connected, and graph lines did not reach the data points.
View Article and Find Full Text PDFPsychother Psychosom Med Psychol
October 2019
The aim of the study was to generate a model describing psychotherapists' use of new media in outpatient psychotherapy. Problem-centered interviews were conducted with 12 outpatient psychotherapists. Data was analyzed following the Grounded Theory approach.
View Article and Find Full Text PDFThe cytosolic accumulation of mitochondrial precursors is hazardous to cellular fitness and is associated with a number of diseases. However, it is not observed under physiological conditions. Individual mechanisms that allow cells to avoid cytosolic accumulation of mitochondrial precursors have recently been discovered, but their interplay and regulation remain elusive.
View Article and Find Full Text PDFBackground: Multimorbid older adults suffering from a long-term health condition like depression, diabetes mellitus type 2, dementia or frailty are at high risk of losing their autonomy. Disability and multimorbidity in the older population are associated with social inequality and lead to soaring costs. Our local, collaborative, stepped and personalised care management for older people with chronic diseases (LoChro-Care) aims at improving outcomes for older multimorbid patients with chronic conditions whose social and medical care must be improved.
View Article and Find Full Text PDF[This corrects the article DOI: 10.2196/jmir.9925.
View Article and Find Full Text PDFObjective: To identify Behaviour Change Techniques (BCTs) applied in interventions to enhance physical activity (PA) adherence in patients with chronic musculoskeletal conditions and to investigate the effectiveness of these interventions in increasing PA adherence.
Methods: A systematic search of seven databases was conducted. We included (cluster/quasi-) randomised controlled trials comparing behaviour change interventions to no/placebo/minimal interventions or usual care and involving at least a three-month post-intervention follow-up.
Background: Internet- and mobile-based interventions are effective for the treatment of chronic pain. However, little is known about patients' willingness to engage with these types of interventions and how the uptake of such interventions can be improved.
Objective: The aim of this study was to identify people's acceptance, uptake, and adherence (primary outcomes) with regard to an internet- and mobile-based intervention for chronic pain and the influence of an information video as an acceptance-facilitating intervention (AFI).
Following publication of the original article [1], the author reported the errors in the figure and in text reference in the published article. These errors are detailed below. The original article has been corrected.
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