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Perspectives of individuals on reducing meat consumption to mitigate climate change: protocol for a scoping review

Por: Moosburger · R. · Wagner · J. · Heldt · K. · Richter · A. · Manz · K. · Mensink · G. B. M. · Loss · J.

High consumption of red and processed meat increases the risk of several chronic diseases. Many people, especially in high-income countries, eat more meat than recommended by nutritional and health agencies. Meat production also has negative impacts on the environment and contributes to climate change. Therefore, climate protection, besides health or animal welfare, could motivate individuals to eat less meat. Willingness to reduce meat consumption and motives to do so are not yet fully understood.

Methods and analysis

Based on the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) extended guidelines, a scoping review of peer-reviewed original studies will be conducted to address three questions: What is the evidence regarding (1) the willingness of individuals to reduce meat consumption to mitigate climate change, (2) the awareness of individuals about the link between their meat consumption and the potential to mitigate climate change and (3) individuals having reduced meat consumption for the reason of climate protection? We will search the databases Medline (via PubMed), Scopus, Embase, Greenfile (via Ebsco) and PsynDex/CurrentContent/Agris (via Livivo) using a systematic search string. Studies from 2015 onwards, published in English, German, Danish or Dutch, will be included. We will include observational studies, qualitative studies, intervention studies (if they include surveys) and reviews. Data will be summarised in a narrative synthesis, comprising methods, population characteristics, meat type under study, indicators measured and limitations. Key findings will be grouped according to the research questions. This scoping review will help clarify the role of climate protection in individual reduction of meat consumption and identify research gaps in this field.

Ethics and dissemination

Formal ethical approval is not required, as primary data will not be collected in this study. Findings of this scoping review will be presented at scientific conferences and published in a peer-reviewed journal.

Trial registration number

Investigating the roles of hyperglycaemia, hyperinsulinaemia and elevated free fatty acids in cardiac function in patients with type 2 diabetes via treatment with insulin compared with empagliflozin: protocol for the HyperCarD2 randomised, crossover trial

Por: Thirumathyam · R. · Richter · E. A. · Goetze · J. P. · Fenger · M. · Van Hall · G. · Dixen · U. · Holst · J. J. · Madsbad · S. · Vejlstrup · N. · Madsen · P. L. · Jorgensen · N. B.

Type 2 diabetes (T2D) is characterised by elevated plasma glucose, free fatty acid (FFA) and insulin concentrations, and this metabolic profile is linked to diabetic cardiomyopathy, a diastolic dysfunction at first and increased cardiovascular disease (CVD) risk. Shifting cardiac metabolism towards glucose utilisation has been suggested to improve cardiovascular function and CVD risk, but insulin treatment increases overall glucose oxidation and lowers lipid oxidation, without reducing CVD risk, whereas SGLT2 inhibitors (SGLT2i) increase FFA, ketone body concentrations and lipid oxidation, while decreasing insulin concentrations and CVD risk. The aim of the present study is to elucidate the importance of different metabolic profiles obtained during treatment with a SGLT2i versus insulin for myocardial function in patients with T2D.

Methods and analyses

Randomised, crossover study, where 20 patients with T2D and body mass index>28 kg/m2 receive 25 mg empagliflozin daily or NPH insulin two times per day first for 5 weeks followed by a 3-week washout before crossing over to the remaining treatment. Insulin treatment is titrated to achieve similar glycaemic control as with empagliflozin. In those randomised to insulin first, glycaemia during an initial empagliflozin run-in period prior to randomisation serves as target glucose. Metabolic and cardiac evaluation is performed before and at the end of each treatment period.

The primary endpoint is change (treatment—washout) in left ventricular peak filling rate, as assessed by cardiac MRI with and without acute lowering of plasma FFAs with acipimox. Secondary and explorative endpoints are changes in left atrial passive emptying fraction, left ventricular ejection fraction, central blood volume and metabolic parameters.

Ethics and dissemination

This study is approved by the Danish Medicines Agency (ref. nr.: 2017061587), the Danish Data Protection Agency (ref. nr.: AHH-2017-093) and the Capital Region Ethics Committee (ref. nr.: H-17018846). The trial will be conducted in accordance with ICH-GCP guidelines and the Declaration of Helsinki and all participants will provide oral and written informed consent. Our results, regardless of outcome, will be published in relevant scientific journals and we also will seek to disseminate results through presentations at scientific meetings.

Trial registration number

EudraCT: 2017-002101.

Dynamics, outcomes and prerequisites of the first SARS-CoV-2 superspreading event in Germany in February 2020: a cross-sectional epidemiological study

Por: Wessendorf · L. · Richter · E. · Schulte · B. · Schmithausen · R. M. · Exner · M. · Lehmann · N. · Coenen · M. · Fuhrmann · C. · Kellings · A. · Hüsing · A. · Jöckel · K.-H. · Streeck · H.

The first German SARS-CoV-2 outbreak was a superspreading event in Gangelt, North Rhine-Westphalia, during indoor carnival festivities called ‘Kappensitzung’ (15 February 2020). We determined SARS-CoV-2 RT-PCR positivity rate, SARS-CoV-2-specific antibodies, and analysed the conditions and dynamics of superspreading, including ventilation, setting dimensions, distance from infected persons and behavioural patterns.


In a cross-sectional epidemiological study (51 days postevent), participants were asked to give blood, pharyngeal swabs and complete self-administered questionnaires.


The SARS-CoV-2 superspreading event took place during festivities in the small community of Gangelt in February 2020. This 5-hour event included 450 people (6–79 years of age) in a building of 27 m x 13.20 m x 4.20 m.


Out of 450 event participants, 411 volunteered to participate in this study.

Primary and secondary outcome measures

Primary outcome: infection status (determined by IgG ELISA). Secondary outcome: symptoms (determined by questionnaire).


Overall, 46% (n=186/404) of participants had been infected, and their spatial distribution was associated with proximity to the ventilation system (OR 1.39, 95% CI 0.86 to 2.25). Risk of infection was highly associated with age: children (OR 0.33, 95% CI 0.267 to 0.414) and young adults (age 18–25 years) had a lower risk of infection than older participants (average risk increase of 28% per 10 years). Behavioural differences were also risk associated including time spent outside (OR 0.55, (95% CI 0.33 to 0.91) or smoking (OR 0.32, 95% CI 0.124 to 0.81).


Our findings underline the importance of proper indoor ventilation for future events. Lower susceptibility of children/young adults indicates their limited involvement in superspreading.

Frailty among older surgical patients and risk of hospital acquired adverse events: The South‐Western Sydney frailty and nurse sensitive indicators study



While advances in healthcare mean people are living longer, increasing frailty is a potential consequence of this. The relationship between frailty among older surgical patients and hospital acquired adverse events has not been extensively explored. We sought to describe the relationship between increasing frailty among older surgical patients and the risk of hospital acquired adverse events.


We included consecutive surgical admissions among patients aged 70 years or more across the SWSLHD between January 2010 and December 2020. This study used routinely collected ICD-10-AM data, obtained from the government maintained Admitted Patient Data Collection. The relationships between cumulative frailty deficit items and risk of hospital acquired adverse events were assessed using Poisson regression modelling. This study followed the RECORD/STROBE guidelines.


During the study period, 44,721 (57% women) older adults were admitted, and 41% (25,306) were planned surgical admissions. The risk of all adverse events increased with increasing number of frailty deficit items, the highest deficit items group (4–12 deficit items) compared with the lowest deficit items group (0 or 1 deficit item): falls adjusted rate ratio (adj RR) = 15.3, (95% confidence interval (CI) 12.1, 19.42); pressure injury adj RR = 21.3 (95% CI 12.53, 36.16); delirium adj RR = 40.9 (95% CI 31.21, 53.55); pneumonia adj RR = 16.5 (95% CI 12.74, 21.27); thromboembolism adj RR = 17.3 (95% CI 4.4, 11.92); and hospital mortality adj RR = 6.2 (95% CI 5.18, 7.37).


The increase in number of cumulative frailty deficit items among older surgical patients was associated with a higher risk of adverse hospital events. The link offers an opportunity to clinical nursing professionals in the surgical setting, to develop and implement targeted models of care and ensure the best outcomes for frail older adults and their families.

Role of contextual and compositional characteristics of schools for health inequalities in childhood and adolescence: a scoping review

Por: Herke · M. · Moor · I. · Winter · K. · Hack · M. · Hoffmann · S. · Spallek · J. · Hilger-Kolb · J. · Herr · R. · Pischke · C. · Dragano · N. · Novelli · A. · Richter · M.

To synthesise the evidence on the role of compositional or contextual characteristics of schools in the association between students' socioeconomic position and their health in primary and secondary education in developed economies.


Scoping review. We included studies examining the role of at least one school or class characteristic on students’ health inequalities and was published since 1 January 2000, in English or German. We searched PubMed/Medline, Web of Science and Education Resources Information Center. We provided a narrative synthesis and an overview of findings. School characteristics were grouped into five broad categories: school composition, school climate, school policies and organisation, food environment and facilities.


Of 8520 records identified, 26 studies were included. Twelve studies found a moderating and 3 a mediating effect. The strongest evidence came from studies examining the moderating effect of school composition, that is, the negative impact of a low individual socioeconomic position on mental health and well-being was aggravated by a low average socioeconomic position of schools. Evidence concerning the role of school climate, school stratification (eg, performance base tracking) and sponsorship, food environment and sport facilities and equipment was generally weak or very weak and mostly based on singular findings. Overall, favourable meso-level characteristics mitigated the negative impact of low individual socioeconomic position on health outcomes.


School characteristics affect health inequalities in children and adolescents to some degree, but future research is necessary to strengthen the existing evidence and address under-represented aspects in school characteristics and health outcomes.

How can we strengthen mental health services in Swedish youth clinics? A health policy and systems study protocol

Por: Richter Sundberg · L. · Christianson · M. · Wiklund · M. · Hurtig · A.-K. · Goicolea · I.

Strengthening first-line mental healthcare services for youth remains a priority for the Swedish government. The government is currently investigating how different sectors involved can be strengthened, but evidence is scarce. Youth clinics play a key role in these discussions, being one of the most trusted services for youth. However, analysis of organisational functions and coordination with other services is important to strengthen youth clinics’ role in first-line mental healthcare. This study investigates these challenges and aims to analyse the integration of mental healthcare within youth clinics to identify strategies to strengthen first-line mental healthcare for youth in Sweden.

Methods and analysis

This study adopts a health policy and systems approach. In the first phase, a formative realist evaluation is conducted to ascertain what works in terms of integrating mental healthcare services within youth clinics, for what type of youth subpopulations and under what circumstances. National-level stakeholders will be interviewed to elicit the programme theory that explains how the intervention is supposed to work. The programme theory will then be tested in three–five cases. The cases will be comprised of youth clinics and their stakeholders. Quantitative and qualitative information will be gathered, including via visual methodologies and questionnaires. The second phase includes a concept mapping study, engaging stakeholders and young people to build consensus on strategies to strengthen the integration of mental healthcare into youth clinics.

Ethics and dissemination

The Swedish Ethical Review Authority has approved the study (2019-02910 and 2020-04720). The results will be published in open-access peer-reviewed journals and presented at scientific conferences.

The effect of a basic skin care product on the structural strength of the dermo‐epidermal junction: An exploratory, randomised, controlled split‐body trial


Skin ageing is associated with various structural alterations including a decreased strength of the dermo-epidermal adhesion increasing the risk for shear type injuries (skin tears). Topical applications of basic skin care products seem to reduce skin tear incidence. The suction blister method leads to the artificial and controlled separation of dermis and epidermis. Therefore, time to blister formation may be used as outcome measuring the strength of dermo-epidermal adhesion. We conducted an exploratory, randomised, controlled trial with a split-body design on forearms in healthy female subjects (n = 12; mean age 70.3 [SD 2.1] years). Forearms assigned to the intervention were treated twice daily with petrolatum for 8 weeks. Suction blisters were induced on forearms after 4 and 8 weeks and time to blister formation was measured. Stratum corneum and epidermal hydration were measured and epidermal thickness was assessed via optical coherence tomography. Time to blistering was longer and stratum corneum as well as epidermal hydration was consistently higher in intervention skin areas. We conclude that topical application of basic skin care products may improve mechanical adhesion of the dermo-epidermal junction and that the parameter “time to blistering” is a suitable outcome to measure dermo-epidermal adhesion strength in clinical research.

Resting state networks of the canine brain under sevoflurane anaesthesia

by Katrin M. Beckmann, Adriano Wang-Leandro, Matthias Dennler, Ines Carrera, Henning Richter, Rima N. Bektas, Aline Steiner, Sven Haller

Resting-state functional Magnetic Resonance Imaging (rs-fMRI) has become an established technique in humans and reliably determines several resting state networks (RSNs) simultaneously. Limited data exist about RSN in dogs. The aim of this study was to investigate the RSNs in 10 healthy beagle dogs using a 3 tesla MRI scanner and subsequently perform group-level independent component analysis (ICA) to identify functionally connected brain networks. Rs-fMRI sequences were performed under steady state sevoflurane inhalation anaesthesia. Anaesthetic depth was titrated to the minimum level needed for immobilisation and mechanical ventilation of the patient. This required a sevoflurane MAC between 0.8 to 1.2. Group-level ICA dimensionality of 20 components revealed distributed sensory, motor and higher-order networks in the dogs’ brain. We identified in total 7 RSNs (default mode, primary and higher order visual, auditory, two putative motor-somatosensory and one putative somatosensory), which are common to other mammals including humans. Identified RSN are remarkably similar to those identified in awake dogs. This study proves the feasibility of rs-fMRI in anesthetized dogs and describes several RSNs, which may set the basis for investigating pathophysiological characteristics of various canine brain diseases.