117 results on '"Peter BJ"'
Search Results
2. The bullying in anaesthesia registrars survey (BARS): Does a validated questionnaire improve our understanding of bullying in Australian and New Zealand anaesthesia trainees?
- Author
-
Garnett, Peter BJ, Douglas, Scott G, Riley, Richard H, and Roberts, Lindy J
- Published
- 2023
3. The Bullying in Anaesthesia Registrars Survey (BARS): Does a validated questionnaire improve our understanding of bullying in Australian and New Zealand anaesthesia trainees?
- Author
-
Peter BJ Garnett, Scott G Douglas, Richard H Riley, and Lindy J Roberts
- Subjects
Anesthesiology and Pain Medicine ,Critical Care and Intensive Care Medicine - Abstract
Previous studies have established that bullying is a pervasive problem in healthcare. However, most investigations of bullying in anaesthesia use self-labelled survey questions in which respondents’ subjective perceptions of bullying are central in defining prevalence. This study applied the validated revised Negative Acts Questionnaire (NAQ-r) for a more objective assessment of bullying prevalence and types of negative behaviours experienced by anaesthesia trainees in Australia and New Zealand. An online questionnaire was distributed by the Australian and New Zealand College of Anaesthetists (ANZCA) Clinical Trials Network to 990 randomly selected ANZCA trainees. Bullying prevalence was assessed using both a self-labelled survey tool and the NAQ-r, which requires respondents to select from a list of negative acts, with validated cut-offs that define bullying. Sources of bullying, impact on recipients and barriers to reporting were also examined. This design allowed comparison of the two methods for evaluating bullying prevalence. Twenty-six percent of trainees surveyed completed both bullying survey instruments. Thirty percent of these respondents self-labelled as having experienced bullying in the previous six months, with 8% reporting bullying at least monthly. With the NAQ-r, most respondents (96%) reported experiencing at least one negative act in the prior six months, with 54% reporting these on a monthly basis. The most frequent behaviours described were humiliation and intimidation. Using NAQ-r cut-offs, 36% of respondents experienced occasional bullying and 10% were victims of severe workplace bullying. The NAQ-r provides a more nuanced and objective insight into bullying faced by ANZCA trainees than do self-labelled surveys. The results of the present study provide a valuable baseline for ongoing assessment.
- Published
- 2023
- Full Text
- View/download PDF
4. sj-pdf-1-aic-10.1177_0310057X221138584 - Supplemental material for The Bullying in Anaesthesia Registrars Survey (BARS): Does a validated questionnaire improve our understanding of bullying in Australian and New Zealand anaesthesia trainees?
- Author
-
Garnett, Peter BJ, Douglas, Scott G, Riley, Richard H, and Roberts, Lindy J
- Subjects
FOS: Clinical medicine ,110305 Emergency Medicine - Abstract
Supplemental material, sj-pdf-1-aic-10.1177_0310057X221138584 for The Bullying in Anaesthesia Registrars Survey (BARS): Does a validated questionnaire improve our understanding of bullying in Australian and New Zealand anaesthesia trainees? by Peter BJ Garnett, Scott G Douglas, Richard H Riley, Lindy J Roberts in Anaesthesia and Intensive Care
- Published
- 2023
- Full Text
- View/download PDF
5. Interdisciplinarity, Accessibility, and Working with Change in Colonial Mesoamerica
- Author
-
Peter Bjorndahl Sorensen
- Subjects
Latin America. Spanish America ,F1201-3799 ,Social Sciences - Published
- 2024
- Full Text
- View/download PDF
6. Vascular Characteristics of Treatment-resistant and -responsive Actinic Keratosis Identified with Dynamic Optical Coherence Tomography
- Author
-
Gabriella Fredman, Merete Haedersdal, Peter A. Philipsen, Flemming Andersen, Peter Bjerring, Stine R. Wiegell, and Gavrielle Untracht
- Subjects
dynamic optical coherence tomography ,daylight photodynamic therapy ,actinic keratosis ,skin microvasculature ,angiography ,OCTAVA ,Dermatology ,RL1-803 - Abstract
Treatment-resistant actinic keratosis (AK) is of concern in clinical practice, often requiring retreatment. Microvascular assessments might help differentiate treatment-resistant from treatment-responsive AKs, enabling targeted treatment. Using dynamic optical coherence tomography, AK vascularization was investigated following daylight photodynamic therapy, comparing treatment-resistant with cleared AKs. AKs on face/scalp were graded according to the Olsen Classification Scheme and scanned with dynamic optical coherence tomography pre-treatment, and 3- and 12-months post-treatment. Employing dynamic optical coherence tomography, total vessel length, mean vessel length, mean vessel diameter, vessel area density, and branchpoint density were quantified. Thirty-eight patients with 62 AKs were enrolled, including 37 AK I, 18 AK II, and 7 AK III. Treatment-resistant AKs displayed a trend toward intensified vascularization compared with cleared AK at baseline (AKs I, II), suggested by higher total vessel length (median 144.0, IQR 104.3–186.6) and vessel area density (median 27.7, IQR 18.4–34.2) than in cleared AK (median 120.9, IQR 86.9–143.0 and median 22.9, IQR 17.3–26.8). Additionally, vascularization in treatment-resistant AK I–II appeared disorganized, with trends toward shorter mean vessel length (median 151.0, IQR 138.5–167.5) and increased branchpoint density (median 3.2, IQR 2.3–3.8) compared with cleared AK (median 160.0, IQR 152.0–169.3 and median 2.6, IQR 2.2–3.0). These findings suggest that dynamic optical coherence tomography holds potential to identify treatment-resistant AKs.
- Published
- 2024
- Full Text
- View/download PDF
7. Welfare of Anaesthesia Trainees Survey 2019
- Author
-
Gregory B Downey, Ryan G Downey, Peter Bj Garnett, and Jane McDonald
- Subjects
business.industry ,Australia ,Workload ,Critical Care and Intensive Care Medicine ,Mental illness ,medicine.disease ,Mental health ,Distress ,Anesthesiology and Pain Medicine ,Mental Health ,Anesthesiology ,Anesthesia ,Surveys and Questionnaires ,Health care ,Harassment ,Medicine ,Anxiety ,Humans ,medicine.symptom ,business ,Depression (differential diagnoses) - Abstract
This survey was designed to investigate levels of stress, anxiety and depression, and to identify factors exacerbating or relieving stress in anaesthesia trainees within the Australian and New Zealand College of Anaesthetists training scheme. In addition, the survey investigated levels of personal healthcare, some working conditions, and reports of bullying and reported discrimination along with stigmatisation of mental health issues in this cohort. Psychological distress was assessed using the Kessler psychological distress scale (K10). An electronic survey was sent to 1310 randomly selected registrars, and 417 (32%) responses were received. The majority of respondents (67%) reported being satisfied or very satisfied with their job and training. However, 31% had K10 scores indicating high or very high levels of distress. Eleven percent reported being currently on treatment for anxiety and/or depression. Major stressors were examinations, job prospects, critical incidents and fear of making errors. Forty-five percent of respondents reported having experienced bullying during anaesthesia training, 25% discrimination and 7% sexual harassment. Twenty-six percent reported an excessive workload and 21% reported that they felt their workload compromised patient safety. Forty-two percent reported that they would avoid seeking help for anxiety or depression and 50% reported that they thought revealing mental health problems would jeopardise their careers. The results of this survey demonstrate a high incidence of psychological distress, and high levels of bullying and discrimination, as well as stigmatisation of mental ill health among respondents. Appropriate education, a review of assessment tools, effective management of bullying and discrimination, a review of working conditions, and destigmatisation of mental illness appear to be indicated.
- Published
- 2021
8. Childhood conditions and mental health among youth and young adults in Greenland: a latent class analysis
- Author
-
Charlotte Brandstrup Ottendahl, Peter Bjerregaard, Durita Lyngsø Svartá, Ivalu Katajavaara Seidler, Ingelise Olesen, Martine Stecher Nielsen, and Christina Viskum Lytken Larsen
- Subjects
Childhood conditions ,risk and protective factors ,mental health ,youth ,Inuit ,Greenland ,Arctic medicine. Tropical medicine ,RC955-962 - Abstract
Poor mental health among youth in Greenland is a major challenge, childhood conditions are critical for mental health later in life. The study aimed to examine the clustering of childhood conditions by considering risk and protective factors for mental health among youth and young adults in Greenland and to explore the relationship between these clusters and mental health outcomes in youth. The study included 565 participants aged 15–34 living in Greenland. Seven indicators including childhood adversities (ACEs), childhood residence, language, and cultural indicators (protective factors) were used to define clusters via latent class analysis (LCA). The associations between clusters and mental health outcomes (satisfaction with life (Cantrill’s ladder), self-esteem, self-efficacy, loneliness, psychological distress (General Health Questionnaire) and mental illness (Kessler 6)) were assessed by logistic regression. Four clusters were identified through LCA. While most participants reported positive childhoods, 40% (in two clusters) experienced ACEs. The two clusters differed as more participants in one cluster had experienced protective factors than the other. ACEs were associated with increased odds of negative aspects of mental health in youth. However, participants who faced high levels of adversity and few protective factors also had reduced odds of positive aspects of mental health in youth.
- Published
- 2024
- Full Text
- View/download PDF
9. Reproducibility and validity of a 45 item food-frequency questionnaire for inuit in Greenland
- Author
-
Peter Bjerregaard and Ingelise Olesen
- Subjects
Diet ,dietary methods ,food frequency questionnaires ,food diary ,validation study ,greenland ,Arctic medicine. Tropical medicine ,RC955-962 - Abstract
ABSTRACTSince 1993, dietary assessment has been carried out in Greenland as part of recurrent population health surveys. In preparation for the next survey in 2024, 91 participants from the survey in 2018 were selected for a validation study of the Food Frequency Questionnaire (FFQ). The 91 participants were reinterviewed 38–50 months after the first FFQ and invited to complete a food diary. As part of the 2018 survey, blood was analysed for mercury. The food diary was completed by 65 participants. The agreement between the two FFQ interviews was very good for macronutrients and fatty acids (p > 0.20), whereas the calculated intake of mercury was 22% higher in the second FFQ (p = 0.04) due to a higher intake of whale meat and muktuk (whale skin). The agreement between the second FFQ and the food diary was good for local food, imported meat and cakes/sweets/snacks but fruit and vegetables, dairy products, beverages and added sugar were significantly underreported in the food diary. Food items not included in the FFQ were identified from the food diaries. The correlation between the intake of marine mammals and blood mercury was moderate (Spearman’s rho = 0.41–0.50; p
- Published
- 2024
- Full Text
- View/download PDF
10. The role of flourishing in the STEM trajectories of emerging adults
- Author
-
Karen Hammerness, Rachel Chaffee, Peter Bjorklund, Priya-Syrina Li Hinton, Alan J. Daly, Anna MacPherson, Preeti Gupta, Jennifer D. Adams, Coral Braverman, Jahneal Francis, Lucie Lagodich, Lois Wu, and Mahmoud Abouelkheir
- Subjects
flourishing ,emerging adult trajectories ,stem ,pathways ,historically marginalized communities ,Education (General) ,L7-991 - Abstract
We focus on the use of flourishing as a new measure in studies of pathways in STEM (science, technology, engineering, and mathematical) fields. While the concept of flourishing is promising, the concept may need careful interrogation to ensure it takes structural and personal (cultural, religious, socioeconomic, and racial) differences into account. Our longitudinal study explores emerging adult’s educational and career pathways with careful attention to structural inequities, enabling us to productively explore the concept of flourishing in a larger systemic context. Drawing from a set of qualitative interviews with our participants, we explore the ways that our sample of emerging adults (N = 30), predominantly people of color, define and discuss flourishing. The concept resonated with our diverse participants, and a substantial number did report flourishing. But despite the regularity with which the participants described experiencing racism and microaggressions, they did not often mention those harmful experiences when discussing flourishing. We caution that flourishing data on its own may provide an overly rosy image of the pathways and development, especially of young people of color. Our data suggest that it may be especially important to examine flourishing in context with other measures that can flesh out a fuller picture of well-being, especially in relation to race, racism, sexism, or any other experiences related to personal identities. In particular, instruments should be carefully designed to ensure–especially for emerging adults–that all aspects of their lives and identities can be fully understood.
- Published
- 2024
- Full Text
- View/download PDF
11. Oral administration of quercetin and fisetin potentiates photocarcinogenesis in UVR-exposed hairless mice
- Author
-
Celina Pihl, Jonatan Riber Granborg, Fernanda Endringer Pinto, Peter Bjerring, Flemming Andersen, Christian Janfelt, Merete Haedersdal, and Catharina Margrethe Lerche
- Subjects
Ultraviolet radiation ,Hairless mice ,Skin cancer ,Oral delivery ,Photoprotection ,Phytochemicals ,Other systems of medicine ,RZ201-999 - Abstract
Background: Phytochemicals have demonstrated great potential as photoprotectants. Apple-derived compounds such as quercetin, fisetin, and rutin are reported to provide topical photoprotection, but oral delivery has not been explored. Purpose: To determine the photoprotective effects of oral administration of quercetin, fisetin, and rutin, and their accumulation in skin assessed through mass spectrometry imaging. Study design: Groups of 25 hairless mice (n = 125 mice) received in the daily feed 100 mg/kg quercetin, fisetin, or rutin, 600 mg/kg nicotinamide in water as a positive control, or no supplementation as the UV control. The animals were exposed to ultraviolet radiation (UVR) equivalent to 3.5 standard erythema doses thrice weekly. Method: Mass spectroemetry imaging was used to assess local skin accumulation. Results: Oral administration of quercetin and fisetin reduced the time to tumour onset (Quercetin: second and third tumour [p < 0.045]; fisetin: third tumour [p < 0.021]), with no observed effect for rutin. Nicotinamide delayed the onset of all three recorded tumours (p < 0.0082). Results were supported by accelerated tumour growth following quercetin treatment (p < 0.0069), whereas nicotinamide reduced tumour growth (p < 0.00015). Skin accumulation of the compounds could not be demonstrated, suggesting other mechanisms must be explored to explain these effects on UVR-induced carcinogenesis. Conclusion: Oral administration of quercetin and fisetin to hairless mice increased UVR-induced tumour development. These results indicate a need for caution when selecting candidates for photoprotectants.
- Published
- 2024
- Full Text
- View/download PDF
12. The effect of diabetes and the diabetogenic TBC1D4 p.Arg684ter variant on kidney function in Inuit in Greenland
- Author
-
Maria Overvad, Lars Jorge Díaz, Peter Bjerregaard, Michael Lynge Pedersen, Christina Viskum Lytken Larsen, Niels Grarup, Torben Hansen, Peter Rossing, and Marit Eika Jørgensen
- Subjects
Greenland ,diabetes ,genetics ,complications ,CKD ,Arctic medicine. Tropical medicine ,RC955-962 - Abstract
ABSTRACTThe aim of this study was to examine the effect of diabetes and the diabetogenic TBC1D4 variant on kidney function in Greenland in a population-based setting. Health survey data and TBC1D4 genotypes from 5,336 Greenlanders were used to estimate odds ratios (ORs) of albuminuria (>30 mg/g creatinine) and chronic kidney disease (CKD, eGFR
- Published
- 2023
- Full Text
- View/download PDF
13. Experimental diets dictate the metabolic benefits of probiotics in obesity
- Author
-
Ida Søgaard Larsen, Béatrice S.-Y. Choi, Bandik Föh, Nanna Ny Kristensen, Adia Ouellette, Rune Falkenberg Haller, Peter Bjarke Olsen, Delphine Saulnier, Christian Sina, Benjamin A. H. Jensen, and André Marette
- Subjects
Probiotics ,diet-induced obesity ,insulin resistance ,microbiota ,dietary interaction ,NAFLD ,Diseases of the digestive system. Gastroenterology ,RC799-869 - Abstract
ABSTRACTGrowing evidence supports the use of probiotics to prevent or mitigate obesity-related dysmetabolism and non-alcoholic fatty liver disease (NAFLD). However, frequent reports of responders versus non-responders to probiotic treatment warrant a better understanding of key modifiers of host–microbe interactions. The influence of host diet on probiotic efficacy, in particular against metabolic diseases, remains elusive. We fed C57BL6/J mice a low fat reference diet or one of two energy-matched high fat and high sucrose diets for 12 weeks; a classical high fat diet (HFD) and a customized fast food-mimicking diet (FFMD). During the studies, mice fed either obesogenic diet were gavaged daily with one of two probiotic lactic acid bacteria (LAB) strains previously classified as Lactobaccillus, namely Limosilactobacillus reuteri (L. reuteri)or Lacticaseibacillus paracaseisubsp. paracasei (L. paracasei), or vehicle. The tested probiotics exhibited a reproducible efficacy but dichotomous response according to the obesogenic diets used. Indeed, L. paracaseiprevented weight gain, improved insulin sensitivity, and protected against NAFLD development in mice fed HFD, but not FFMD. Conversely, L. reuteri improved glucoregulatory capacity, reduced NAFLD development, and increased distal gut bile acid levels associated with changes in predicted functions of the gut microbiota exclusively in the context of FFMD-feeding. We found that the probiotic efficacy of two LAB strains is highly dependent on experimental obesogenic diets. These findings highlight the need to carefully consider the confounding impact of diet in order to improve both the reproducibility of preclinical probiotic studies and their clinical research translatability.
- Published
- 2023
- Full Text
- View/download PDF
14. Muscular strength, mobility in daily life and mental wellbeing among older adult Inuit in Greenland. The Greenland population health survey 2018
- Author
-
Peter Bjerregaard, Charlotte Brandstrup Ottendahl, Tenna Jensen, Kamilla Nørtoft, Marit Eika Jørgensen, and Christina Viskum Lytken Larsen
- Subjects
Inuit ,Greenland ,mobility in daily life ,muscular strength ,muscle pain ,mental wellbeing ,Arctic medicine. Tropical medicine ,RC955-962 - Abstract
ABSTRACTThe purpose was to analyse the association of muscular strength, muscle pain and reduced mobility in daily life with mental wellbeing among older Inuit men and women in Greenland. Data (N = 846) was collected as part of a countrywide cross-sectional health survey in 2018. Hand grip strength and 30-seconds chair stand test were measured according to established protocols. Mobility in daily life was assessed by five questions about the ability to perform specific activities of daily living. Mental wellbeing was assessed by questions about self-rated health, life satisfaction and Goldberg’s General Health Questionnaire. In binary multivariate logistic regression models adjusted for age and social position, muscular strength (OR 0.87–0.94) and muscle pain (OR 1.53–1.79) were associated with reduced mobility. In fully adjusted models, muscle pain (OR 0.68–0.83) and reduced mobility (OR 0.51–0.55) but were associated with mental wellbeing. Chair stand score was associated with life satisfaction (OR 1.05). With an increasingly sedentary lifestyle, increasing prevalence of obesity and increasing life expectancy the health consequences of musculoskeletal dysfunction are expected to grow. Prevention and clinical handling of poor mental health among older adults need to consider reduced muscle strength, muscle pain and reduced mobility as important determinants.
- Published
- 2023
- Full Text
- View/download PDF
15. Time trends and geographical patterns in suicide among Greenland Inuit
- Author
-
Ivalu Katajavaara Seidler, Janne Schurmann Tolstrup, Peter Bjerregaard, Allison Crawford, and Christina Viskum Lytken Larsen
- Subjects
Suicide ,Time trends ,Inuit ,Greenland ,Register ,Psychiatry ,RC435-571 - Abstract
Abstract Background Between 1980 and 2018 Greenland has had one of the highest suicide rates in the world with an average rate of 96 suicides per 100,000 people annually. The aim of this study is to investigate suicide rates in Greenland according to age, birth cohort, period, sex, place of residence and suicide method from 1970 until 2018. Methods Suicide rates were examined using register and census data from 1970–2018 among Greenland Inuit. Rates were calculated by Poisson regression in Stata and by use of Excel. In analyses of the period trends, rates were standardized according to the World Standard Population 2000–2025. Results The suicide rate has been declining since a peak at 120 suicides per 100,000 people annually in the 1980s but remained high at a rate of 81.3 suicides per 100,000 people annually from 2015–2018. Descriptive analyses point to the decrease in male suicides as the primary factor for the overall decreasing rates while the rate among women has been increasing. Simultaneously, the proportion of women who used a violent suicide method increased from 60% in 1970–1979 to 90% in 2010–2018. The highest rates are seen among young people, especially young men aged 20–24 years and youth suicide rates increased with later birth cohorts. When the rates started to increase in the 1980s both the capital Nuuk and East Greenland had the highest rates. Since then, the rate in Nuuk has declined while the rate in East Greenland was three times the national rate from 2015–2018. Conclusions From 1970 to 1989 the suicide rate increased from 28.7 to 120.5 per 100,000 people mirroring a rapid societal transition in the post-colonial period. The rate has slowly declined from the peak in the 1980s but remains at a very high level. Young people in general are at risk, but the steady increase in the rate among women is worrying and there is a need to investigate underlying causes for this development.
- Published
- 2023
- Full Text
- View/download PDF
16. Customer-Based Brand Equity Drivers: A Leading Brand of Beer in Estonia
- Author
-
Dafnis N. Coudounaris, Peter Björk, Tõnis Mets, Rustam Asadli, and Andreea I. Bujac
- Subjects
brand equity ,theory of trust/commitment ,theory of customer-based brand equity ,brewery sector ,A. Le Coq brand of beer ,Estonia ,Political institutions and public administration (General) ,JF20-2112 - Abstract
Based on the trust/commitment theory and the customer-based brand equity theory, this study aims to ascertain which of the brand equity drivers of A. Le Coq beer have an impact on attachment and its overall brand equity in the Estonian brewery market. In order to achieve this goal, an empirical study was conducted based on the 17 customer-based/consumer-based brand equity models: the 15 brand equity models, including the beer/beverage brand equity models, the 2 internal brand equity models, as well as 3 other related models. The study utilised a sample of convenience of 120 University of Tartu students. The questionnaire was placed on Google’s online survey administration service. Confirmatory factor analysis (CFA) through AMOS29 was used for testing the fit of the model and covariances (through AMOS29) were used for testing the hypotheses. Additionally, t-test analysis was used for the differences in the means between the demographic characteristics and the items of the model. The results show that brand meaning has a strong positive effect on attachment strength, which significantly influences relationship factors—commitment, trust, and satisfaction. Another major finding is that the relationship factors—commitment, trust, and satisfaction—play a significant role in the development of the brand equity of A. Le Coq beer. This study provides useful insights for brewery marketing managers by exploiting the strong positive relationships found between beer brand equity drivers, such as the strong positive relationships found within consumers of beer, i.e., the relationships between brand reputation and brand image, brand meaning and attachment strength, attachment strength and commitment, attachment strength and satisfaction, attachment strength and trust, satisfaction and brand equity, commitment and brand equity, and trust and brand equity. This finding contributes to the literature on brand equity related to the Estonian environment. Five differences in demographic characteristics seem to play a role in designing strategies by the management teams of different brands for increasing the consumption of their competing brands of beer. A replication of a model previously used for a non-product is part of the novelty of this paper. In addition, all the examined relationships are found to be positive and significant, which provides a contribution to the existing literature.
- Published
- 2024
- Full Text
- View/download PDF
17. Intravenous iron in clinical concentrations does not impair haemoglobin measurement
- Author
-
Robin Williams, Edmond O'Loughlin, Peter Bj Garnett, and Nathalie M Falkner
- Subjects
medicine.medical_specialty ,Chromatography ,IRON PREPARATIONS ,Chemistry ,Iron ,Clinical Biochemistry ,Intravenous iron ,General Medicine ,Iron deficiency ,030204 cardiovascular system & hematology ,medicine.disease ,Surgery ,Hemoglobins ,03 medical and health sciences ,0302 clinical medicine ,Spectrophotometry ,030202 anesthesiology ,medicine ,Humans ,Ferric ,Infusions, Intravenous ,Iron polymaltose ,Whole blood ,medicine.drug - Abstract
Background Intravenous iron is commonly administered to anaemic patients to treat iron deficiency, but due to its ferric colouration, it may interfere with the spectrophotometric assessment of haemoglobin concentrations. This paper investigates the potential interference of three clinically used intravenous iron preparations on the measurement of haemoglobin. Methods Haemoglobin concentration was measured for neat and Hartmann’s solution-diluted iron polymaltose, carboxymaltose and sucrose solutions using bedside (Radiometer HemoCue®), point-of-care (Radiometer ABL800 Flex) and laboratory (Abbott CellDyne Sapphire™) devices. Haemoglobin concentration was then assessed with the same devices utilizing anaemic whole blood with the iron solutions added. Results Neat iron preparations registered clinically significant haemoglobin concentrations on bedside and laboratory measurements. When intravenous iron preparations were diluted to clinical concentrations, their effect on haemoglobin measurements, either in isolation or mixed with anaemic blood, was negligible. Conclusion Although neat preparations of intravenous iron do interfere with spectrophotometric analysis of haemoglobin, concentrations likely to be seen post iron infusion do not significantly interfere with haemoglobin measurement.
- Published
- 2015
- Full Text
- View/download PDF
18. Rev1 deficiency induces a metabolic shift in MEFs that can be manipulated by the NAD+ precursor nicotinamide riboside
- Author
-
Sharath Anugula, Zhiquan Li, Yuan Li, Alexander Hendriksen, Peter Bjarn Christensen, Lin Wang, Jonathan M. Monk, Niels de Wind, Vilhelm A. Bohr, Claus Desler, Robert K. Naviaux, and Lene Juel Rasmussen
- Subjects
Rev1 ,Replication stress ,NAD+ ,Nicotinamide riboside ,Healthspan ,Autophagy ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
Replication stress, caused by Rev1 deficiency, is associated with mitochondrial dysfunction, and metabolic stress. However, the overall metabolic alterations and possible interventions to rescue the deficits due to Rev1 loss remain unclear. Here, we report that loss of Rev1 leads to intense changes in metabolites and that this can be manipulated by NAD + supplementation. Autophagy decreases in Rev1−/− mouse embryonic fibroblasts (MEFs) and can be restored by supplementing the NAD+ precursor nicotinamide riboside (NR). The abnormal mitochondrial morphology in Rev1−/− MEFs can be partially reversed by NR supplementation, which also protects the mitochondrial cristae from rotenone-induced degeneration. In nematodes rev-1 deficiency causes sensitivity to oxidative stress but this cannot be rescued by NR supplementation. In conclusion, Rev1 deficiency leads to metabolic dysregulation of especially lipid and nucleotide metabolism, impaired autophagy, and mitochondrial anomalies, and all of these phenotypes can be improved by NR replenishment in MEFs.
- Published
- 2023
- Full Text
- View/download PDF
19. Equivariant graph neural networks for fast electron density estimation of molecules, liquids, and solids
- Author
-
Peter Bjørn Jørgensen and Arghya Bhowmik
- Subjects
Materials of engineering and construction. Mechanics of materials ,TA401-492 ,Computer software ,QA76.75-76.765 - Abstract
Abstract Electron density $$\rho (\overrightarrow{{{{\bf{r}}}}})$$ ρ ( r → ) is the fundamental variable in the calculation of ground state energy with density functional theory (DFT). Beyond total energy, features and changes in $$\rho (\overrightarrow{{{{\bf{r}}}}})$$ ρ ( r → ) distributions are often used to capture critical physicochemical phenomena in functional materials. We present a machine learning framework for the prediction of $$\rho (\overrightarrow{{{{\bf{r}}}}})$$ ρ ( r → ) . The model is based on equivariant graph neural networks and the electron density is predicted at special query point vertices that are part of the message-passing graph, but only receive messages. The model is tested across multiple datasets of molecules (QM9), liquid ethylene carbonate electrolyte (EC) and LixNiyMnzCo(1-y-z)O2 lithium ion battery cathodes (NMC). For QM9 molecules, the accuracy of the proposed model exceeds typical variability in $$\rho (\overrightarrow{{{{\bf{r}}}}})$$ ρ ( r → ) obtained from DFT done with different exchange-correlation functionals. The accuracy on all three datasets is beyond state of the art and the computation time is orders of magnitude faster than DFT.
- Published
- 2022
- Full Text
- View/download PDF
20. Valsartan, Losartan and Irbesartan use in the USA, UK, Canada and Denmark after the nitrosamine recalls: a descriptive cohort study
- Author
-
Anton Pottegård, Rebecca E Ghosh, Robert W Platt, Efe Eworuke, HaNa Lee, Marie C Bradley, Ashish Rai, Peter Bjødstrup Jensen, Mayura Shinde, Laura Hou, Michael J Paterson, Judith C Maro, Daniel Scarnecchia, Dinci Pennap, Daniel Woronow, and Stephen Welburn
- Subjects
Medicine - Abstract
Objectives To examine valsartan, losartan and irbesartan usage and switching patterns in the USA, UK, Canada and Denmark before and after July 2018, when the first Angiotensin-Receptor-Blocker (ARB) (valsartan) was recalled.Design Retrospective cohort study.Setting USA, Canadian administrative healthcare data, Danish National Prescription Registry and UK primary care electronic health records.Participants Patients aged 18 years and older between January 2014 and December 2020.Intervention Valsartan, losartan and irbesartan.Main outcome Monthly percentages of individual ARB episodes, new users and switches to another ARB, ACE inhibitors (ACEI) or calcium channel blockers containing products.Results We identified 10.8, 3.2, 1.8 and 1.2 million ARB users in the USA, UK, Canada and Denmark, respectively. Overall proportions of valsartan, losartan and irbesartan use were 18.4%, 67.9% and 5.2% in the USA; 3.1%, 48.3% and 10.2% in the UK, 16.3%, 11.4% and 18.3% in Canada, 1%, 93.5% and 0.6% in Denmark. In July 2018, we observed an immediate steep decline in the proportion of valsartan use in the USA and Canada. A similar trend was observed in Denmark; however, the decline was only minimal. We observed no change in trends of ARB use in the UK. Accompanying the valsartan decline was an increase in switching to other ARBs in the USA, Canada and Denmark. There was a small increase in switching to ACEI relative to the valsartan-to-other-ARBs switch. We also observed increased switching from other affected ARBs, losartan and irbesartan, to other ARBs throughout 2019, in the USA and Canada, although the usage trends in the USA remained unchanged.Conclusion The first recall notice for valsartan resulted in substantial decline in usage due to increased switching to other ARBs. Subsequent notices for losartan and irbesartan were also associated with increased switching around the time of the recall, however, overall usage trends remained unchanged.
- Published
- 2023
- Full Text
- View/download PDF
21. Methodology of the brodalumab assessment of hazards: a multicentre observational safety (BRAHMS) study
- Author
-
Øystein Karlstad, Alexander Egeberg, Kari Furu, Ulrike Haug, Wiebke Schäfer, Johan Reutfors, Mette Reilev, Jesper Hallas, Ron Herings, Valeria Belleudi, Gianluca Trifirò, Rosa Gini, Ursula Kirchmayer, Henrik Støvring, Peter Bjødstrup Jensen, Lise Skov Ranch, Karin Gembert, David Hagg, Sarina Schwartz, Elisabeth Smits, Emily Holthius, and Alessandro Cesare Rosa
- Subjects
Medicine - Abstract
Introduction Safe and effective pharmacological treatment is of paramount importance for treating severe psoriasis. Brodalumab, a monoclonal antibody against interleukin (IL) 17 receptor A, was granted marketing authorisation in the EU in 2017. The European Medicines Agency requested a postauthorisation safety study of brodalumab to address potential safety issues raised during drug development regarding major adverse cardiovascular events, suicidal conduct, cancer and serious infections.Methods and analysis BRodalumab Assessment of Hazards: A Multinational Safety is a multicentre observational safety study of brodalumab running from 2017 to 2029 using population-based healthcare databases from Denmark, Sweden, Norway, Netherlands, Germany and three different centres in Italy. A distributed database network approach is used, such that only aggregate data are exchanged between sites.Two types of designs are used: a case-time-control design to study acute effects of transient treatment and a variation of the new user active comparator design to study the effects of transient or chronic treatment. As comparators, inhibitors of TNF-α, inhibitors of IL-12 and IL-23, and other inhibitors of cytokine IL-17A are included.In the self-controlled case-time-control design, the risk of developing the outcome of interest during periods of brodalumab use is compared within individuals to the risk in periods without use.In the active comparator cohort design, new users of brodalumab are identified and matched to new users of active comparators. Potential baseline confounders are adjusted for by using propensity score modelling. For outcomes that potentially require large cumulative exposure, an adapted active comparator design has been developed.Ethics and dissemination The study is approved by relevant authorities in Denmark, Norway, Sweden, the Netherlands, Germany and Italy in line with the relevant legislation at each site. Data confidentiality is secured by the distributed network approach. Results will be published in peer-reviewed journals.Trial registration number EUPAS30280.
- Published
- 2023
- Full Text
- View/download PDF
22. New friends and cohesive classrooms: A research practice partnership to promote inclusion
- Author
-
Christoforos Mamas, Peter Bjorklund Jr., Shana R. Cohen, and Caren Holtzman
- Subjects
Research Practice Partnership (RPP) ,Inclusion ,Social network analysis (SNA) ,Friendship ties ,Special educational needs and disabilities (SEND) ,Theory and practice of education ,LB5-3640 - Abstract
This longitudinal unusual case study explored the efficacy of a Research Practice Partnership (RPP) between researchers and educators aiming to promote inclusion of students identified as having Special Educational Needs and Disabilities (SEND) in an urban, highly diverse, high-need elementary school in Southern California. In the context of this study, an RPP is defined as an approach where researchers and educators work collaboratively over time to solve pressing pedagogical problems of mutual concern. Lessons have been constructed and implemented by educators as part of the RPP, spanning one school year. A total of 116 students across four classrooms participated in a social network survey to examine their friendship ties before (T1) and after (T2) the RPP. The pre-RPP data collection (T1) occurred three months into the school year and the post-RPP data collection (T2) took place at the end of the school year. To explore our hypotheses, we conducted bootstrapped paired sample t tests and Separable Temporal Exponential Random Graph Models (STERGMs). Results showed that the number of friendship ties increased significantly from T1 to T2 for all students and students identified as having SEND were significantly more likely to send new friendship ties. Implications for practice are being discussed.
- Published
- 2023
- Full Text
- View/download PDF
23. Pompeo Batoni (1708���1787) and religious painting in eighteenth-century Rome
- Author
-
Kerber, Hans Peter Bj��rn
- Subjects
FOS: Art (arts, history of arts, performing arts, music) - Published
- 2014
- Full Text
- View/download PDF
24. The Greenland population health survey 2018 – methods of a prospective study of risk factors for lifestyle related diseases and social determinants of health amongst Inuit
- Author
-
Peter Bjerregaard, Christina Viskum Lytken Larsen, Ingelise Olesen, Charlotte Brandstrup Ottendahl, Vibeke Backer, Ninna Senftleber, Marie Mathilde Bjerg Christensen, Trine Jul Larsen, Stine Byberg, Torben Hansen, and Marit Eika Jørgensen
- Subjects
Inuit ,Greenland ,social determinants ,cardiometabolic diseases ,airway diseases ,risk factors ,Arctic medicine. Tropical medicine ,RC955-962 - Abstract
Since 1993, regular population health surveys in Greenland have supported and monitored the public health strategy of Greenland and have monitored cardiometabolic and lung diseases. The most recent of these surveys included 2539 persons aged 15+ from 20 communities spread over the whole country. The survey instruments included personal interviews, self-administered questionnaires, blood sampling, anthropometric measurements, blood pressure, ECG, oral glucose test, pulmonary function, hand grip strength and chair stand test. Blood samples were analysed for glucose, glycated haemoglobin (HbA1c), insulin, incretin hormones, cholesterol, kidney function, fatty acids in erythrocyte membranes and mercury, urine for albumin-creatinine ratio, and aliquots were stored at −80°C for future use. Data were furthermore collected for studies of the gut microbiome and diabetes complications. Survey participants were followed up with register data. The potential of the study is to contribute to the continued monitoring of risk factors and health conditions as part of Greenland’s public health strategy and to study the epidemiology of cardiometabolic diseases and other chronic diseases and behavioural risk factors. The next population health survey is planned for 2024. The emphasis of the article is on the methods of the study and results will be presented in other publications.
- Published
- 2022
- Full Text
- View/download PDF
25. Exploring sex-specific time trends in drinking patterns in the Greenlandic population from 1993 to 2014 – a large Arctic Indigenous population
- Author
-
Ivalu Katajavaara Seidler, Lau Caspar Thygesen, Peter Bjerregaard, and Christina Viskum Lytken Larsen
- Subjects
Drinking patterns ,time trends ,indigenous ,arctic ,greenland ,health surveys ,Arctic medicine. Tropical medicine ,RC955-962 - Abstract
A drinking pattern characterised by occasional excessive drinking is a key challenge for public health in Greenland. The objective was to examine sex-specific time trends in drinking patterns among Greenland Inuit. Cross-sectional and cohort data from geographically representative health surveys in 1993, 2005–2010 and 2014 were included (n = 4,938). Drinking patterns were defined as abstainer, non-problematic and occasional binge drinking. Patterns were analysed by sex-specific crude proportions and logistical analyses according to age, birth cohort and calendar time, accounting for region and settlement type. More than half of the men and one-third of the women had an occasional binge drinking pattern, while 22.6% of females and 15.1% of men were abstainers. Abstention increased with increasing age, while occasional binge drinking decreased among men. Younger male birth cohorts were less likely to have an occasional binge drinking pattern, while the youngest females had the highest odds ratio. A drinking pattern characterised by occasional excessive use remains a key challenge for public health in Greenland with age as a strong predictor. A high prevalence of abstainers co-exists with a high prevalence of occasional binge drinking. The increased odds ratio for occasional binge drinking among younger females should be addressed further.
- Published
- 2022
- Full Text
- View/download PDF
26. Association of food insecurity with dietary patterns and expenditure on food, alcohol and tobacco amongst indigenous Inuit in Greenland: results from a population health survey
- Author
-
Peter Bjerregaard, Ingelise Olesen, and Christina Viskum Lytken Larsen
- Subjects
Food insecurity ,Dietary patterns ,Commodity basket cost ,Alcohol ,Tobacco ,Inuit ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Amongst the indigenous Greenlandic Inuit, the experience of food insecurity has been attributed to a lack of money to buy enough food of sufficient quality to sustain a family, although a preference for alcohol and tobacco over food has also been cited. The purpose of the article was to compare dietary patterns and expenditure on food, alcoholic beverages and tobacco between survey participants who reported food insecurity and those who did not. Methods A countrywide cross-sectional health survey was carried out among 1886 adult Greenlandic Inuit in 2018. Diet was estimated by a food frequency questionnaire. Food insecurity status was based on the household hunger scale. Analyses were carried out by univariate general linear models adjusted for age, sex and social position. Results Nine percent of the participants reported food insecurity. Food insecurity was higher among younger participants, men and participants with low social position. Food insecure participants more often chose an unhealthy dietary pattern (43% vs. 32%) and they reported a higher energy intake. The food insecure spent the same amount of money on food as other participants but less on nutritious food and more on non-nutritious food. The cost per kilojoule (kJ) of the food of the food insecure was lower than that of the food secure (DKK 8.0 and 9.0 per 1000 kJ, respectively). The food insecure participants also spent considerably more on alcohol and tobacco. Conclusions The results suggest that it is not only unemployment and lack of money that creates food insecurity and unhealthy dietary patterns in Greenland. Food insecure participants gave higher priority to buying non-nutritious food, alcohol and tobacco than did food secure participants. There seems to be at least two population subgroups in Greenland with poverty and substance use, respectively, as the immediate determinants for food insecurity. The results are important for the design of interventions against food insecurity and unhealthy dietary patterns.
- Published
- 2021
- Full Text
- View/download PDF
27. Intravenous iron in clinical concentrations does not impair haemoglobin measurement
- Author
-
O’Loughlin, Edmond, primary, Garnett, Peter BJ, additional, Falkner, Nathalie M, additional, and Williams, Robin, additional
- Published
- 2015
- Full Text
- View/download PDF
28. Primary Orbital Chondromyxoid Fibroma: A Cause of Monosymptomatic Periocular Pain
- Author
-
Louise Hildestad, Steffen Heegaard, and Peter Bjerre Toft
- Subjects
monosymptomatic periocular pain ,tumour ,chondromyxoid fibroma ,orbit ,Ophthalmology ,RE1-994 - Abstract
Chondromyxoid fibroma (CMF) is a very rare entity, accounting for
- Published
- 2021
- Full Text
- View/download PDF
29. Correction: Time trends and geographical patterns in suicide among Greenland Inuit
- Author
-
Ivalu Katajavaara Seidler, Janne Schurmann Tolstrup, Peter Bjerregaard, Allison Crawford, and Christina Viskum Lytken Larsen
- Subjects
Psychiatry ,RC435-571 - Published
- 2023
- Full Text
- View/download PDF
30. The effect of diabetes and the common diabetogenic TBC1D4 p.Arg684Ter variant on cardiovascular risk in Inuit in Greenland
- Author
-
Maria Overvad, Lars Jorge Diaz, Peter Bjerregaard, Michael Lynge Pedersen, Christina Viskum Lytken Larsen, Ninna Senftleber, Niels Grarup, Torben Hansen, and Marit Eika Jørgensen
- Subjects
Medicine ,Science - Abstract
Abstract Cardiovascular disease (CVD) is a well-known complication of diabetes, but the association has not been studied among Inuit in Greenland. The aim was to examine the association between diabetes and incident CVD among Inuit in Greenland and determine if the common diabetogenic TBC1D4 variant confers increased risk of CVD. We followed an initial study population of 4127 adults in Greenland who had participated in at least one population-based health survey, in national registers. We used Poisson regression to calculate incidence rate ratios (IRR) of cardiovascular endpoints, comparing participants with and without diabetes and comparing homozygous TBC1D4 carriers with heterozygous carriers and non-carriers combined. Close to 10% had diabetes and age range was 18–96 years (45% male). Of the 3924 participants without prior CVD, 362 (~ 9%) had CVD events during a median follow-up of 10 years. Multivariate IRR for the effect of diabetes on CVD was 1.12 (95% CI: 0.80, 1.57) p = 0.50. Using a recessive genetic model, we compared homozygous TBC1D4 carriers with wildtype and heterozygous carriers combined, with a multivariate IRR of 1.20 (95% CI: 0.69, 2.11) p = 0.52. Neither diabetes nor the TBC1D4 variant significantly increased CVD risk among Inuit in Greenland in adjusted models.
- Published
- 2020
- Full Text
- View/download PDF
31. Scholarly Knowledge Communication in Organisational Decision-Making
- Author
-
Peter Björk and Hannele Kauppinen-Räisänen
- Subjects
internal communication ,management practice ,scholarly knowledge ,service quality ,Communication. Mass media ,P87-96 - Abstract
This study explored how scholarly knowledge—with a focus on service quality—is used and obtained by business managers in daily practice, and potential barriers to implementing such knowledge in decision-making. A qualitative approach was employed in conducting individual interviews with 20 managers in 10 Finnish companies. The study detected that service quality knowledge was recognised and internally communicated, thereby affecting business practices. By exploring how such knowledge is obtained and used, this study detected several barriers on both the individual and organisational levels, indicating that scholarly knowledge is not fully employed as evidence in decision-making. The study contributes to the ongoing discussion concerning the relationship between theory and practice by providing empirical insights regarding service quality knowledge and by elucidating why this knowledge is not employed in decision-making.
- Published
- 2020
32. 'It’s Created by a Community': Local Context Mediating Districts’ Approaches to Serving Immigrant and Refugee Newcomers
- Author
-
Megan Hopkins, Hayley Weddle, Peter Bjorklund, Ilana M. Umansky, and Dafney Blanca Dabach
- Subjects
Education - Abstract
Literature examining the context of reception reveals how various structural and cultural factors shape newcomers’ experiences, and thus their opportunities for integration. Fewer studies explore how school districts are situated in this broader context of reception, or how district policies and practices for newcomers are enabled or constrained by the local context. This study draws on a zones of mediation framework to examine how external forces mediated districts’ approaches to serving growing numbers of immigrant and refugee newcomers. Analysis of interviews with 57 stakeholders from across three districts revealed that the presence or absence of community-based support networks, as well as the extent to which local policies and perceptions emphasized inclusion, mediated districts’ programmatic approaches. Implications for district and community leaders are discussed.
- Published
- 2021
- Full Text
- View/download PDF
33. Measuring social inequality in health amongst indigenous peoples in the Arctic. A comparison of different indicators of social disparity among the Inuit in Greenland
- Author
-
Peter Bjerregaard, Inger Katrine Dahl-Petersen, and Christina Viskum Lytken Larsen
- Subjects
Public aspects of medicine ,RA1-1270 ,Social sciences (General) ,H1-99 - Abstract
The purpose of the article is to compare different indicators of social position as measures of social inequality in health in a population sample from an indigenous arctic people, the Inuit in Greenland. Data was collected during 2005–2015 and consisted of information from 3967 adult Inuit from towns and villages in all parts of Greenland. Social inequalities for smoking and central obesity were analysed in relation to seven indicators of social disparity in four dimensions, i.e. education and employment, economic status, sociocultural position, and place of residence. For each indicator we calculated age-adjusted prevalence by social group, rate ratio and the concentration index. The indicators were correlated with Pearson’s r ranging from 0.24 to 0.82. Concentration indices ranged from 0.01 to 0.17. We could not conclude that one indicator was superior to others. Most of the indicators were traditional socioeconomic indicators used extensively in research in western countries and these seemed to be useful among the Inuit too, in particular household assets and job. Two sociocultural indicators developed for use among the Inuit and which included parameters specific to the indigenous peoples in the transition from a traditional to a modern life style proved to be equally useful but not superior to the traditional socioeconomic indicators. The choice of indicator must depend on what it is realistic to collect in the actual research setting and the use of more than one indicator is recommended. It is suggested to further develop culture specific indicators of social position for indigenous peoples. Keywords: Social inequality, Socioeconomic conditions, Cultural transition, Smoking, Obesity, Inuit
- Published
- 2018
- Full Text
- View/download PDF
34. Finding Satisfaction in Belonging: Preservice Teacher Subjective Well-Being and its Relationship to Belonging, Trust, and Self-Efficacy
- Author
-
Peter Bjorklund Jr., Melissa F. Warstadt, and Alan J. Daly
- Subjects
preservice teachers ,well-being ,sense of belonging ,trust ,self-efficacy ,Education (General) ,L7-991 - Abstract
The well-being of teachers and preservice teachers has been a topic extensively explored through the lens of burnout and stress. Despite its manifold benefits, few studies have explored PST well-being through the lens of subjective well-being. Grounding our study in positive psychology, we explore the relationships between preservice teachers’ subjective well-being, program sense of belonging, relational trust, and self-efficacy. Our participants included 63 multiple- and single-subject preservice teachers in a major university teacher education program in the western United States. They were surveyed in May 2019 in the final month of completing their program. We found that sense of belonging, relational trust, and self-efficacy individually are positively associated with well-being. A mediation analysis revealed that the relationship between relational trust and subjective well-being is mediated by program sense of belonging, which may indicate the importance of cohesion in a cohort-based teacher education program.
- Published
- 2021
- Full Text
- View/download PDF
35. Hand grip strength and chair stand test amongst Greenlandic Inuit: reference values and international comparisons
- Author
-
Peter Bjerregaard, Charlotte Brandstrup Ottendahl, and Marit Eika Jørgensen
- Subjects
hand grip strength ,chair stand test ,inuit ,greenland ,older adults ,reference values ,Arctic medicine. Tropical medicine ,RC955-962 - Abstract
Muscle strength is an important predictor for function and mortality among older adults. We measured hand grip strength among 1442 participants aged 15+ years and carried out a 30 second chair stand test among 786 participants aged 55+ years. Neither test has been carried out among the Inuit before. We present reference values for men and women as means with standard deviations and medians with 10th, 25th, 75th and 90th percentiles. Hand grip strength was higher among men than among women (means 45.2 kg and 25.8 kg; p
- Published
- 2021
- Full Text
- View/download PDF
36. Fungal lysozyme leverages the gut microbiota to curb DSS-induced colitis
- Author
-
Ida Søgaard Larsen, Benjamin A. H. Jensen, Erica Bonazzi, Béatrice S. Y. Choi, Nanna Ny Kristensen, Esben Gjerløff Wedebye Schmidt, Annika Süenderhauf, Laurence Morin, Peter Bjarke Olsen, Lea Benedicte Skov Hansen, Torsten Schröder, Christian Sina, Benoît Chassaing, and André Marette
- Subjects
gut health ,high fat diet ,mucus ,colitis ,insulin resistance ,muramidase ,microbiota encroachment ,intestinal inflammation ,microbiota function ,host defense peptides ,Diseases of the digestive system. Gastroenterology ,RC799-869 - Abstract
Colitis is characterized by colonic inflammation and impaired gut health. Both features aggravate obesity and insulin resistance. Host defense peptides (HDPs) are key regulators of gut homeostasis and generally malfunctioning in above-mentioned conditions. We aimed here to improve bowel function in diet-induced obesity and chemically induced colitis through daily oral administration of lysozyme, a well-characterized HDP, derived from Acremonium alcalophilum. C57BL6/J mice were fed either low-fat reference diet or HFD ± daily gavage of lysozyme for 12 weeks, followed by metabolic assessment and evaluation of colonic microbiota encroachment. To further evaluate the efficacy of intestinal inflammation, we next supplemented chow-fed BALB/c mice with lysozyme during Dextran Sulfate Sodium (DSS)-induced colitis in either conventional or microbiota-depleted mice. We assessed longitudinal microbiome alterations by 16S amplicon sequencing in both models. Lysozyme dose-dependently alleviated intestinal inflammation in DSS-challenged mice and further protected against HFD-induced microbiota encroachment and fasting hyperinsulinemia. Observed improvements of intestinal health relied on a complex gut flora, with the observation that microbiota depletion abrogated lysozyme’s capacity to mitigate DSS-induced colitis. Akkermansia muciniphila associated with impaired gut health in both models, a trajectory that was mitigated by lysozyme administration. In agreement with this notion, PICRUSt2 analysis revealed specific pathways consistently affected by lysozyme administration, independent of vivarium, disease model and mouse strain. Taking together, lysozyme leveraged the gut microbiota to curb DSS-induced inflammation, alleviated HFD-induced gastrointestinal disturbances and lowered fasting insulin levels in obese mice. Collectively, these data present A. alcalophilum-derived lysozyme as a promising candidate to enhance gut health.
- Published
- 2021
- Full Text
- View/download PDF
37. Exploring the effects of service provider’s organizational support and empowerment on employee engagement and well-being
- Author
-
Arafat Rahman, Peter Björk, and Annika Ravald
- Subjects
organizational support ,organizational empowerment ,employee engagement ,employee well-being ,transformative service research ,Business ,HF5001-6182 ,Management. Industrial management ,HD28-70 - Abstract
This paper aims to explore the effects of a service provider’s organizational support and organizational empowerment on employee well-being in the healthcare service context. It also investigates if employee engagement has an effect on employee well-being. An empirical study among the employees (n = 153) of a therapeutic and rehabilitation service provider in Dhaka, Bangladesh reveals that both organizational support and organizational empowerment have positive influences on employee well-being. Although organizational support has the largest effect on employee engagement, the influence of organizational empowerment on employee engagement is not a significant factor. However, employee engagement influences their well-being. The study findings provide insights by explaining the roles that a service provider can play to enhance employee well-being and the strategies that managers can take to realize the positive effects of organizational support and empowerment on well-being.
- Published
- 2020
- Full Text
- View/download PDF
38. Alcohol in Greenland 1950-2018: consumption, drinking patterns, and consequences
- Author
-
Peter Bjerregaard, Christina V. L. Larsen, Ivalu K. Sørensen, and Janne S. Tolstrup
- Subjects
alcohol ,greenland ,inuit ,drinking patterns ,adverse childhood experiences ,Arctic medicine. Tropical medicine ,RC955-962 - Abstract
Alcohol is the single most important public health challenge in Greenland. We provide an overview of alcohol consumption, drinking patterns, and consequences of excessive use of alcohol in Greenland since 1950 through a synthesis of published results and analyses of population-based interview surveys. The import of alcohol fluctuated over the last 70 years with a peak in the 1980s at 22 litres 100% alcohol per person per year. In 1950 and 2015, the import of alcohol was similar at 8 litres. Several explanations have been put forward to explain the changes including restrictions, increased tax, demographic changes, treatment of alcohol disorders, and public health interventions. The proportion of abstainers increased from 1993 to 2018 while the proportion of participants with regular consumption decreased. About half of the population reported binge drinking at least monthly. Compared with Denmark, there were more abstainers and binge drinkers in Greenland, and fewer had a regular consumption. Although genetics may play a role for drinking patterns, social and cultural conditions are more important. Exposure to domestic alcohol problems and sexual abuse in childhood parallel the recorded import of alcohol and is a likely cause of transgenerational consequences such as youth suicides and alcohol problems.
- Published
- 2020
- Full Text
- View/download PDF
39. Disparities amidst plenty: a health portrait of Indigenous peoples in circumpolar regions
- Author
-
T. Kue Young, Ann Ragnhild Broderstad, Yury A. Sumarokov, and Peter Bjerregaard
- Subjects
arctic ,indigenous people ,health disparities ,canada ,alaska ,russia ,nordic countries ,greenland ,Arctic medicine. Tropical medicine ,RC955-962 - Abstract
This paper describes the extent and variation in health disparities between Indigenous and non-Indigenous people within Alaska, Greenland and the northern regions of Canada, Russia and the Nordic countries. We accessed official health statistics and reviewed research studies. We selected a few indicators of health status, health determinants and health care to demonstrate the health disparities that exist. For a large number of health indicators Indigenous people fare worse than non-Indigenous people in the same region or nationally, with the exception of the Sami in the Nordic countries whose health profiles are similar to their non-Sami neighbours. That we were unable to produce a uniform set of indicators applicable to all regions is indicative of the large knowledge gaps that exist. The need for ongoing health monitoring for Indigenous people is most acute for the Sami and Russia, less so for Canada, and least for Alaska, where health data specific to Alaska Natives are generally available. It is difficult to produce an overarching explanatory model for health disparities that is applicable to all regions. We need to seek explanation in the broader political, cultural and societal contexts within which Indigenous people live in their respective regions.
- Published
- 2020
- Full Text
- View/download PDF
40. The derived allele of a novel intergenic variant at chromosome 11 associates with lower body mass index and a favorable metabolic phenotype in Greenlanders.
- Author
-
Mette K Andersen, Emil Jørsboe, Line Skotte, Kristian Hanghøj, Camilla H Sandholt, Ida Moltke, Niels Grarup, Timo Kern, Yuvaraj Mahendran, Bolette Søborg, Peter Bjerregaard, Christina V L Larsen, Inger K Dahl-Petersen, Hemant K Tiwari, Bjarke Feenstra, Anders Koch, Howard W Wiener, Scarlett E Hopkins, Oluf Pedersen, Mads Melbye, Bert B Boyer, Marit E Jørgensen, Anders Albrechtsen, and Torben Hansen
- Subjects
Genetics ,QH426-470 - Abstract
The genetic architecture of the small and isolated Greenlandic population is advantageous for identification of novel genetic variants associated with cardio-metabolic traits. We aimed to identify genetic loci associated with body mass index (BMI), to expand the knowledge of the genetic and biological mechanisms underlying obesity. Stage 1 BMI-association analyses were performed in 4,626 Greenlanders. Stage 2 replication and meta-analysis were performed in additional cohorts comprising 1,058 Yup'ik Alaska Native people, and 1,529 Greenlanders. Obesity-related traits were assessed in the stage 1 study population. We identified a common variant on chromosome 11, rs4936356, where the derived G-allele had a frequency of 24% in the stage 1 study population. The derived allele was genome-wide significantly associated with lower BMI (beta (SE), -0.14 SD (0.03), p = 3.2x10-8), corresponding to 0.64 kg/m2 lower BMI per G allele in the stage 1 study population. We observed a similar effect in the Yup'ik cohort (-0.09 SD, p = 0.038), and a non-significant effect in the same direction in the independent Greenlandic stage 2 cohort (-0.03 SD, p = 0.514). The association remained genome-wide significant in meta-analysis of the Arctic cohorts (-0.10 SD (0.02), p = 4.7x10-8). Moreover, the variant was associated with a leaner body type (weight, -1.68 (0.37) kg; waist circumference, -1.52 (0.33) cm; hip circumference, -0.85 (0.24) cm; lean mass, -0.84 (0.19) kg; fat mass and percent, -1.66 (0.33) kg and -1.39 (0.27) %; visceral adipose tissue, -0.30 (0.07) cm; subcutaneous adipose tissue, -0.16 (0.05) cm, all p
- Published
- 2020
- Full Text
- View/download PDF
41. Connections and Capacity: An Exploration of Preservice Teachers’ Sense of Belonging, Social Networks, and Self-Efficacy in Three Teacher Education Programs
- Author
-
Peter Bjorklund, Alan J. Daly, Rebecca Ambrose, and Elizabeth A. van Es
- Subjects
Education - Abstract
Learning to teach is rife with challenges. Preservice teachers’ self-efficacy can potentially mitigate the stress of these challenges, and teacher education programs are fundamental in helping them build this important resource. As such, understanding the foundations of self-efficacy is important for researchers and teacher educators alike. Grounding our study in social network theory, we explored the relationship between sense of belonging to a teacher education program, network centrality, and self-efficacy. Our sample included 245 preservice teachers in three university teacher education programs. We found that sense of belonging to the program and network centrality (in-degree and out-degree) were significantly and positively related to preservice teachers’ self-efficacy beliefs. This study builds on a growing literature that explores the relationships between preservice teachers’ social networks and their beliefs and practices.
- Published
- 2020
- Full Text
- View/download PDF
42. Linking glycemic dysregulation in diabetes to symptoms, comorbidities, and genetics through EHR data mining
- Author
-
Isa Kristina Kirk, Christian Simon, Karina Banasik, Peter Christoffer Holm, Amalie Dahl Haue, Peter Bjødstrup Jensen, Lars Juhl Jensen, Cristina Leal Rodríguez, Mette Krogh Pedersen, Robert Eriksson, Henrik Ullits Andersen, Thomas Almdal, Jette Bork-Jensen, Niels Grarup, Knut Borch-Johnsen, Oluf Pedersen, Flemming Pociot, Torben Hansen, Regine Bergholdt, Peter Rossing, and Søren Brunak
- Subjects
diabetes ,EHR ,text mining ,diabetes subtypes ,comorbidities ,genotyping ,Medicine ,Science ,Biology (General) ,QH301-705.5 - Abstract
Diabetes is a diverse and complex disease, with considerable variation in phenotypic manifestation and severity. This variation hampers the study of etiological differences and reduces the statistical power of analyses of associations to genetics, treatment outcomes, and complications. We address these issues through deep, fine-grained phenotypic stratification of a diabetes cohort. Text mining the electronic health records of 14,017 patients, we matched two controlled vocabularies (ICD-10 and a custom vocabulary developed at the clinical center Steno Diabetes Center Copenhagen) to clinical narratives spanning a 19 year period. The two matched vocabularies comprise over 20,000 medical terms describing symptoms, other diagnoses, and lifestyle factors. The cohort is genetically homogeneous (Caucasian diabetes patients from Denmark) so the resulting stratification is not driven by ethnic differences, but rather by inherently dissimilar progression patterns and lifestyle related risk factors. Using unsupervised Markov clustering, we defined 71 clusters of at least 50 individuals within the diabetes spectrum. The clusters display both distinct and shared longitudinal glycemic dysregulation patterns, temporal co-occurrences of comorbidities, and associations to single nucleotide polymorphisms in or near genes relevant for diabetes comorbidities.
- Published
- 2019
- Full Text
- View/download PDF
43. Cancer Incidence and Mortality in Greenland 1983–2014 – Including Comparison With the Other Nordic Countries
- Author
-
Umbreen Yousaf, Gerda Engholm, Hans Storm, Niels Christensen, Elisabeth Zetlitz, Henrik Trykker, Frank Sejersen, Peter Bjerregaard, and Lau Caspar Thygesen
- Subjects
Medicine (General) ,R5-920 - Abstract
Background: During the last decades, social and life-style changes in Greenland have led to an increase in the incidence of several non-communicable diseases. Our aim is to present the cancer incidence and mortality in Greenland and compare the results with the other Nordic countries. Methods: The data stems from The Danish Cancer Registry and The Danish Register of Causes of Death. Comparable data on cancer incidence and mortality in Denmark, Finland, Iceland, Norway, Sweden, and Greenland are available through collaboration between Nordic Cancer Registries (NORDCAN). We included all individuals residing in Greenland and diagnosed with or died of a cancer from 1983 to 2014. Findings: The total number of cancer cases in Greenland for the study period was 4716 and there were 3231 cancer deaths. Respiratory and gastrointestinal cancers had the highest incidence as well as mortality in Greenland for the entire time period and for both sexes. Compared to the other Nordic countries, Greenland had significantly higher incidence and mortality rates for several cancers. Cancer of the lip, oral cavity, and pharynx, respiratory cancer, and cancer of unknown sites had the highest incidence rate ratios (2.3–3.9) and mortality rate ratios (2.7–9.9) for both sexes. The time trend from 1983 to 2014 showed a significant increase in cancer incidence in Greenland with nearly the same incidence level as the other Nordic countries. While the cancer mortality decreased in the other Nordic countries during the time period studied, there was no change in the cancer-specific mortality in Greenland. Interpretations: The trends in cancer incidence and mortality in Greenland compared to the other Nordic countries have not been reported earlier. These data underline a need to focus on cancer-specific mortality in Greenland and prevention of high-incidence cancers related to well-established risk factors. Keywords: Cancer incidence, Cancer mortality, Greenland, Inuit, Arctic, Cancer, Carcinoma, Nordic countries, Epidemiology
- Published
- 2018
- Full Text
- View/download PDF
44. Three lifestyle-related issues of major significance for public health among the Inuit in contemporary Greenland: a review of adverse childhood conditions, obesity, and smoking in a period of social transition
- Author
-
Peter Bjerregaard and Christina V. L. Larsen
- Subjects
Inuit ,Greenland ,Alcohol ,Suicide ,Diet ,Obesity ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Greenland is a country in transition from a colonial past with subsistence hunting and fishing to an urban Nordic welfare state. Epidemiological transition from infectious to chronic diseases has been evident since the 1950s. Ninety percent of the population is Inuit. We studied three public health issues based on published literature, namely adverse childhood experiences, addictive behavior, and suicide; diet and obesity; and smoking. Alcohol consumption was high in the 1970s and 1980s with accompanying family and social disruption. This is still a cause of poor mental health and suicides in the generations most affected. The diet is changing from a traditional diet of fish and marine mammals to imported food including food items rich in sugar and fat from domestic animals, and the level of physical activity is decreasing with an ensuing epidemic rise in obesity. The prevalence of smoking is high at around 60% among both men and women and is only slowly decreasing. Smoking shows large social variation, and tobacco-related diseases are widespread. The diseases and conditions outlined above all contribute towards a low life expectancy at birth—69 years for men and 74 years for women in 2011–2015—compared with 78 and 84 years for men and women, respectively, on average in the European countries. The translation of government public health programs into local activities needs strengthening, and it must be realized that the improvement of public health is a long-term process.
- Published
- 2018
- Full Text
- View/download PDF
45. Erratum: Hagen et al. Unilateral Optic Nerve Sheath Fenestration in Idiopathic Intracranial Hypertension: A 6-Month Follow-Up Study on Visual Outcome and Prognostic Markers. Life 2021, 11, 778
- Author
-
Snorre Malm Hagen, Marianne Wegener, Peter Bjerre Toft, Kåre Fugleholm, Rigmor Højland Jensen, and Steffen Hamann
- Subjects
n/a ,Science - Abstract
It has come to our attention that there has been an error in the previous work [...]
- Published
- 2021
- Full Text
- View/download PDF
46. Intravenous iron in clinical concentrations does not impair haemoglobin measurement.
- Author
-
O’Loughlin, Edmond, Garnett, Peter B. J., Falkner, Nathalie M., Williams, Robin, O'Loughlin, Edmond, and Garnett, Peter Bj
- Subjects
HEMOGLOBINS ,SPECTROPHOTOMETRY ,SPECTROMETRY ,IRON deficiency ,MINERAL deficiency ,INTRAVENOUS therapy ,IRON - Abstract
Background: Intravenous iron is commonly administered to anaemic patients to treat iron deficiency, but due to its ferric colouration, it may interfere with the spectrophotometric assessment of haemoglobin concentrations. This paper investigates the potential interference of three clinically used intravenous iron preparations on the measurement of haemoglobin.Methods: Haemoglobin concentration was measured for neat and Hartmann's solution-diluted iron polymaltose, carboxymaltose and sucrose solutions using bedside (Radiometer HemoCue®), point-of-care (Radiometer ABL800 Flex) and laboratory (Abbott CellDyne Sapphire™) devices. Haemoglobin concentration was then assessed with the same devices utilizing anaemic whole blood with the iron solutions added.Results: Neat iron preparations registered clinically significant haemoglobin concentrations on bedside and laboratory measurements. When intravenous iron preparations were diluted to clinical concentrations, their effect on haemoglobin measurements, either in isolation or mixed with anaemic blood, was negligible.Conclusion: Although neat preparations of intravenous iron do interfere with spectrophotometric analysis of haemoglobin, concentrations likely to be seen post iron infusion do not significantly interfere with haemoglobin measurement. [ABSTRACT FROM AUTHOR]- Published
- 2016
- Full Text
- View/download PDF
47. Unilateral Optic Nerve Sheath Fenestration in Idiopathic Intracranial Hypertension: A 6-Month Follow-Up Study on Visual Outcome and Prognostic Markers
- Author
-
Snorre Malm Hagen, Marianne Wegener, Peter Bjerre Toft, Kåre Fugleholm, Rigmor Højland Jensen, and Steffen Hamann
- Subjects
optic nerve sheath fenestration ,idiopathic intracranial hypertension ,papilledema ,optic nerve head ,automated perimetry ,optical coherence tomography ,Science - Abstract
Loss of vision is a feared consequence of idiopathic intracranial hypertension (IIH). Optic nerve sheath fenestration (ONSF) may be an effective surgical approach to protect visual function in medically refractory IIH. In this study, we evaluate the impact of unilateral superomedial transconjunctival ONSF on bilateral visual outcome using a comprehensive follow-up program. A retrospective chart review of IIH patients who underwent unilateral ONSF between January 2016 and March 2021 was conducted. Patients fulfilling the revised Friedman criteria for IIH and who had exclusively received ONSF as a surgical treatment were included. Main outcomes were visual acuity (VA); perimetric mean deviation (PMD); papilledema grade; and optic nerve head elevation (maxONHE) 1 week, 2 weeks, and 1, 3, and 6 months after surgery. VA (p < 0.05), PMD (p < 0.05), papilledema grade (p < 0.01), and maxOHNE (p < 0.001) were improved after 6 months on both the operated and non-operated eye. Prolonged surgical delay impedes PMD improvement (r = −0.78, p < 0.01), and an increasing opening pressure initiates a greater ganglion cell loss (r = −0.79, p < 0.01). In this small case series, we demonstrate that unilateral superonasal transconjunctival ONSF is a safe procedure with an effect on both eyes. Optic nerve head elevation and PMD are feasible biomarkers for assessing early treatment efficacy after ONSF.
- Published
- 2021
- Full Text
- View/download PDF
48. Sclerosing mesenteritis and mesenteric panniculitis – clinical experience and radiological features
- Author
-
Lisa Nyberg, Jan Björk, Peter Björkdahl, Olle Ekberg, Klas Sjöberg, and Lina Vigren
- Subjects
Clinical classification ,Mesenteric panniculitis ,Mesenteritis ,Radiological classification ,Panniculitis ,Retractile mesenteritis ,Diseases of the digestive system. Gastroenterology ,RC799-869 - Abstract
Abstract Background Sclerosing mesenteritis (SM) is sometimes used as an umbrella-term for idiopathic inflammatory conditions in the mesentery. Mesenteric panniculitis (MP) is a radiological finding and its relation to clinical SM is not fully understood. The aims of this study were to determine whether any correlation could be found between the radiological findings and the clinical disease course. Methods Patients observed due to idiopathic inflammation of the mesentery were identified. If SM could be verified histologically or MP radiologically, the patients were included in this descriptive retro perspective study. Results Typical radiological changes were observed in 27 patients. A majority (23/27) of these patients had mild to moderate symptoms. This group with typical radiology was labelled MP. Four patients were included due to histologically verified disease but had uncharacteristic radiology involving multiple compartments of the abdomen. All four had marked systemic inflammation, fever and fluctuating radiologic findings. Three had severe disease with multiple hospitalisations and complications but responded promptly to corticosteroids. This group was denoted SM. Conclusions We have identified two subgroups of patients; firstly, MP with stable and characteristic radiologic changes and secondly SM with atypical radiology and a more aggressive clinical course. We propose that the term SM should be reserved for this latter condition.
- Published
- 2017
- Full Text
- View/download PDF
49. Socioeconomic inequality of diabetes patients’ health care utilization in Denmark
- Author
-
Camilla Sortsø, Jørgen Lauridsen, Martha Emneus, Anders Green, and Peter Bjødstrup Jensen
- Subjects
Medicine (General) ,R5-920 - Abstract
Abstract Understanding socioeconomic inequalities in health care is critical for achieving health equity. The aim of this paper is threefold: 1) to quantify inequality in diabetes health care service utilization; 2) to understand determinants of these inequalities in relation to socio-demographic and clinical morbidity factors; and 3) to compare the empirical outcome of using income level and educational level as proxies for Socio Economic Status (SES). Data on the entire Danish population of diabetes patients in 2011 (N = 318,729) were applied. Patients’ unique personal identification number enabled individual patient data from several national registers to be linked. A concentration index approach with decomposition into contributing factors was applied. Differences in diabetes patients’ health care utilization patterns suggest that use of services differ among patients of lower and higher SES, despite the Danish universal health care system. Especially, out-patient services, rehabilitation and specialists in primary care show different utilization patterns according to SES. Comparison of the empirical outcome from using educational level and income level as proxy for patients’ SES indicate important differences in inequality estimates. While income, alike other measures of labor market attachment, to a certain extent is explained by morbidity and thus endogenous, education is more decisive for patients’ ability to take advantage of the more specialized services provided in a universal health care system.
- Published
- 2017
- Full Text
- View/download PDF
50. Association between individual-level and community-level socio-economic status and blood pressure among Inuit in Greenland
- Author
-
Mylène Riva, Christina Viskum Lytken Larsen, and Peter Bjerregaard
- Subjects
blood pressure ,indigenous populations ,Inuit ,residence characteristics ,small-area analysis ,Greenland ,Arctic medicine. Tropical medicine ,RC955-962 - Abstract
Background: Despite abundant evidence that socio-economic status (SES) is a fundamental determinant of health, there is a dearth of research examining association between SES, measured at the individual and community levels, and cardiovascular risk factors and morbidity among indigenous populations. Objectives: To examine the influence of individual-level and community-level SES on systolic and diastolic blood pressure among Greenlandic Inuit. Methods: Multilevel analysis of cross-sectional data from the Inuit Health in Transition – Greenland Survey, to which 3,108 Greenlandic Inuit aged 18 years and older participated. Blood pressure is measured using an automatic device, according to standardized protocol. Individual SES is measured by education. Community socio-economic conditions are measured using combined information on average disposable household income and settlement type. Results: Education was not significantly associated with blood pressure. There was an inverse U-shape association between community socio-economic conditions and blood pressure with significantly lower SBP and DBP among participants living in remote traditional villages characterized by lower average disposable household income and in affluent more urbanized towns. Sex-stratified analyses demonstrate the salience of community conditions for men. Conclusions: The association observed between blood pressure and community-level socio-economic conditions suggests that public health and social policies, programmes and interventions aiming to improve living conditions might improve cardiovascular health in Greenland. Studies are required to further examine social gradients in cardiovascular risk factors and morbidity among indigenous populations using different measures of SES.
- Published
- 2016
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.