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Alehashem M, Peters R, Fajana HO, Eslamizad S, Hogan N, Hecker M, Siciliano SD. Herbicides and pesticides synergistically interact at low concentrations in complex mixtures. Chemosphere 2024; 353:141431. [PMID: 38401859 DOI: 10.1016/j.chemosphere.2024.141431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 01/31/2024] [Accepted: 02/08/2024] [Indexed: 02/26/2024]
Abstract
Assessing a complex mixture of pesticides at the impacted sites has been challenging for risk assessors for 50 years. The default assumption is that at low concentrations, pesticides interact additively with one another; thus, the risk posed by each component of a complex mixture could be simply added up. The EPA interaction-based hazard index (HIInteraction) modifies this assumption using a binary weight-of-evidence (BINWOE). However, data gaps often preclude HIInteraction use at most sites. This study evaluated these assumptions using the BINWOE to estimate the hazard index (HI) of select pesticide mixtures. The lack of in vivo binary interaction data led us to use a cell line, SH-SY5Y, to obtain the data necessary for the BINWOE approach. In the risk assessment, we considered the most active exposure scenario inhaling a mixture of volatile pesticides from contaminated soil and groundwater. The potential interactions between pesticides in 15 binary mixtures were investigated using the MTT assay in SH-SY5Y cells. Our findings showed that 60% of the binary mixtures elicited synergism (in at least one concentration), 27% displayed antagonism, and 13% showed additive effects in SH-SY5Y cells. Combining human safety data with in vitro interaction data indicated that adults and toddlers were at the highest risk when considering industrial and commercial land use, respectively, compared to other subpopulations. Incorporating interaction data into the risk assessment either increased the risk by up to 20% or decreased the risk by 2%, depending on the mixture. Our results demonstrate the predominant synergistic interactions, even at low concentrations, altered risk characterization at the complex operating site. Most concerning, organochlorine pesticides with the same mechanism of action did not follow dose additivity when evaluated by SH-SY5Y cell lines. Based on our observations, we caution that current HI methods based on additivity assumptions may underestimate the risk of organochlorine mixtures.
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Affiliation(s)
- M Alehashem
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK S7N 5B3, Canada
| | - R Peters
- Federated Co-operatives Limited, Saskatoon, SK, S7K 0H2, Canada
| | - H O Fajana
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK S7N 5B3, Canada; Department of Soil Science, University of Saskatchewan, Saskatoon, SK, S7N 5A8, Canada
| | - S Eslamizad
- Food Safety Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - N Hogan
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK S7N 5B3, Canada; Department of Animal Science, University of Saskatchewan, Saskatoon, SK, Canada
| | - M Hecker
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK S7N 5B3, Canada; School of Environment and Sustainability, University of Saskatchewan, Saskatoon, SK S7N 5C8, Canada
| | - S D Siciliano
- Toxicology Centre, University of Saskatchewan, Saskatoon, SK S7N 5B3, Canada; Department of Soil Science, University of Saskatchewan, Saskatoon, SK, S7N 5A8, Canada.
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Park JB, Peters R, Novotny JA. Impact of roasting on javamide-I/-II in Arabica and Robusta coffee beans. Food Chem 2023; 412:135586. [PMID: 36739725 DOI: 10.1016/j.foodchem.2023.135586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 12/21/2022] [Accepted: 01/25/2023] [Indexed: 01/31/2023]
Abstract
Javamide-I/-II are anti-inflammatory compounds found in coffee beans. However, potential effects of roasting on javamide-I/-II in coffee beans are currently unknown. Therefore, in this paper, the effects of roasting on javamide-I/-II were investigated in Arabica and Robusta beans. Coffee beans were roasted light, medium and dark, and the amounts of javamide-I/-II in the beans were quantified by a HPLC method. The data showed the different amounts of javamide-I/-II in the beans; not detected and ≤ 3.1 mg in Arabica beans, and 0.5-3.7 mg and 1.0-13.8 mg in Robusta beans, respectively. Furthermore, the data showed that roasting process significantly reduced the amounts of javamide-I/-II in both Arabica and Robusta beans (p < 0.05). These data were also confirmed by multivariate analyses. Additionally, these differences were validated in light, medium and dark roast coffee products in the market. Altogether, roasting can have a significant impact on javamide-I/-II amounts in coffee beans.
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Affiliation(s)
- Jae B Park
- Diet, Genomics, and Immunology Laboratory, BHNRC, ARS, USDA, Beltsville, MD 20705, USA.
| | - Renee Peters
- Diet, Genomics, and Immunology Laboratory, BHNRC, ARS, USDA, Beltsville, MD 20705, USA
| | - Janet A Novotny
- Food Components and Health Laboratory, BHNRC, ARS, USDA, Beltsville, MD 20705, USA
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Kootar S, Huque MH, Eramudugolla R, Rizzuto D, Carlson MC, Odden MC, Lopez OL, Qiu C, Fratiglioni L, Han SD, Bennett DA, Peters R, Anstey KJ. Validation of the CogDrisk Instrument as Predictive of Dementia in Four General Community-Dwelling Populations. J Prev Alzheimers Dis 2023; 10:478-487. [PMID: 37357288 PMCID: PMC10449369 DOI: 10.14283/jpad.2023.38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
BACKGROUND Lack of external validation of dementia risk tools is a major limitation for generalizability and translatability of prediction scores in clinical practice and research. OBJECTIVES We aimed to validate a new dementia prediction risk tool called CogDrisk and a version, CogDrisk-AD for predicting Alzheimer's disease (AD) using cohort studies. DESIGN, SETTING, PARTICIPANTS AND MEASUREMENTS Four cohort studies were identified that included majority of the dementia risk factors from the CogDrisk tool. Participants who were free of dementia at baseline were included. The predictors were component variables in the CogDrisk tool that include self-reported demographics, medical risk factors and lifestyle habits. Risk scores for Any Dementia and AD were computed and Area Under the Curve (AUC) was assessed. To examine modifiable risk factors for dementia, the CogDrisk tool was tested by excluding age and sex estimates from the model. RESULTS The performance of the tool varied between studies. The overall AUC and 95% CI for predicting dementia was 0.77 (0.57, 0.97) for the Swedish National study on Aging and Care in Kungsholmen, 0.76 (0.70, 0.83) for the Health and Retirement Study - Aging, Demographics and Memory Study, 0.70 (0.67,0.72) for the Cardiovascular Health Study Cognition Study, and 0.66 (0.62,0.70) for the Rush Memory and Aging Project. CONCLUSIONS The CogDrisk and CogDrisk-AD performed well in the four studies. Overall, this tool can be used to assess individualized risk factors of dementia and AD in various population settings.
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Affiliation(s)
- S Kootar
- Scientia Professor Kaarin J. Anstey, School of Psychology, University of New South Wales, Kensington NSW 2052, Australia, Telephone no: +61 9399 1061,
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Boamah B, Barnsley S, Finch L, Briens J, Siciliano S, Hogan N, Hecker M, Hanson M, Campbell P, Peters R, Manek A, Al-Dissi AN, Weber L. Target Organ Toxicity in Rats After Subchronic Oral Exposure to Soil Extracts Containing a Complex Mixture of Contaminants. Arch Environ Contam Toxicol 2023; 84:85-100. [PMID: 36577861 DOI: 10.1007/s00244-022-00972-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/13/2022] [Indexed: 06/17/2023]
Abstract
Complex mixtures of unknown contaminants present a challenge to identify toxicological risks without using large numbers of animals and labor-intensive screens of all organs. This study examined soil extracts from a legacy-contaminated pesticide packaging and blending site. HepG2 cytotoxicity was used as an initial screen of 18 soil samples; then, three extracts (A, B and C) from different locations at the study site were used for testing in animals. The first two extracts were identified as the most toxic in vitro, and the latter extract obtained from a location further from these two toxic sampling sites. Then, target organ toxicities were identified following biweekly oral gavage for one month of three soil extracts (0.1% in polyethylene glycol or PEG) compared to vehicle control in male Sprague-Dawley rats (n = 9-10/group). Exposure to extract A significantly increased neutrophils and lymphocytes compared to control. In contrast, all extracts increased plasma α-2 macroglobulin and caused mild-to-moderate lymphocytic proliferation within the spleen white pulp, all indicative of inflammation. Rats exposed to all soil extracts exhibited acute tubular necrosis. Cholinesterase activity was significantly reduced in plasma, but not brain, after exposure to extract A compared to control. Increased hepatic ethoxyresorufin-o-deethylase activity compared to control was observed following exposure to extracts A and B. Exposure to soil extract C in rats showed a prolonged QTc interval in electrocardiography as well as increased brain lipid peroxidation. Candidate contaminants are organochlorine, organophosphate/carbamate pesticides or metabolites. Overall, HepG2 cytotoxicity did not successfully predict the neurotoxicity and cardiotoxicity observed with extract C but was more successful with suspected hydrocarbon toxicities in extracts A and B. Caution should be taken when extrapolating the observation of no effects from in vitro cell culture to in vivo toxicity, and better cell culture lines or assays should be explored.
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Affiliation(s)
- B Boamah
- Toxicology Centre, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK, S7N 5B4, Canada
| | - S Barnsley
- Toxicology Centre, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK, S7N 5B4, Canada
| | - L Finch
- Toxicology Centre, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK, S7N 5B4, Canada
| | - J Briens
- Toxicology Centre, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK, S7N 5B4, Canada
| | - S Siciliano
- Toxicology Centre, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK, S7N 5B4, Canada
| | - N Hogan
- Toxicology Centre, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK, S7N 5B4, Canada
| | - M Hecker
- Toxicology Centre, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK, S7N 5B4, Canada
| | - M Hanson
- Environment and Geography, University of Manitoba, Winnipeg, MB, Canada
| | - P Campbell
- Wood Environment & Infrastructure Solutions, Winnipeg, MB, Canada
| | - R Peters
- Federated Co-Operatives Limited, Saskatoon, SK, Canada
| | - A Manek
- College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - A N Al-Dissi
- Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - L Weber
- Toxicology Centre, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK, S7N 5B4, Canada.
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Schluep M, Endeman H, Gravesteijn BY, Kuijs C, Blans MJ, van den Bogaard B, Van Gemert AWMMK, Hukshorn CJ, van der Meer BJM, Knook AHM, van Melsen T, Peters R, Simons KS, Spijkers G, Vermeijden JW, Wils EJ, Stolker RJ, Hoeks SE. In-depth assessment of health-related quality of life after in-hospital cardiac arrest. J Crit Care 2021; 68:22-30. [PMID: 34856490 DOI: 10.1016/j.jcrc.2021.11.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 11/11/2021] [Accepted: 11/13/2021] [Indexed: 10/19/2022]
Abstract
INTRODUCTION Evidence on physical and psychological well-being of in-hospital cardiac arrest (IHCA) survivors is scarce. The aim of this study is to describe long-term health-related quality of life (HRQoL), functional independence and psychological distress 3 and 12 months post-IHCA. METHODS A multicenter prospective cohort study in 25 hospitals between January 2017 - May 2018. Adult IHCA survivors were included. HRQoL (EQ-5D-5L, SF-12), psychological distress (HADS, CSI) and functional independence (mRS) were assessed at 3 and 12 months post-IHCA. RESULTS At 3-month follow-up 136 of 212 survivors responded to the questionnaire and at 12 months 110 of 198 responded. The median (IQR) EQ-utility Index score was 0.77 (0.65-0.87) at 3 months and 0.81 (0.70-0.91) at 12 months. At 3 months, patients reported a median SF-12 (IQR) physical component scale (PCS) of 38.9 (32.8-46.5) and mental component scale (MCS) of 43.5 (34.0-39.7) and at 12 months a PCS of 43.1 (34.6-52.3) and MCS 46.9 (38.5-54.5). DISCUSSION Using various tools most IHCA survivors report an acceptable HRQoL and a substantial part experiences lower HRQoL compared to population norms. Our data suggest that younger (male) patients and those with poor functional status prior to admission are at highest risk of impaired HRQoL.
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Affiliation(s)
- M Schluep
- Department of Anesthesiology, Erasmus University Medical Center, Rotterdam, the Netherlands.
| | - H Endeman
- Department of Intensive Care Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - B Y Gravesteijn
- Department of Anesthesiology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - C Kuijs
- Department of Intensive Care Medicine, Maasstad Hospital, Rotterdam, the Netherlands; Resuscitation Committee, Maasstad Hospital, Rotterdam, the Netherlands
| | - M J Blans
- Department of Intensive Care Medicine, Rijnstate Hospital, Arnhem, the Netherlands
| | - B van den Bogaard
- Department of Intensive Care Medicine, OLVG, Amsterdam, the Netherlands
| | | | - C J Hukshorn
- Department of Intensive Care Medicine, Isala Hospital, Zwolle, the Netherlands
| | | | - A H M Knook
- Department of Intensive Care Medicine, Reinier de Graaf Gasthuis, Delft, the Netherlands
| | - T van Melsen
- Department of Intensive Care Medicine, Haaglanden Medisch Centrum, The Hague, the Netherlands
| | - R Peters
- Department of Cardiology, Tergooi Hospital, Hilversum, the Netherlands
| | - K S Simons
- Department of Intensive Care Medicine, Jeroen Bosch Hospital, 's Hertogenbosch, the Netherlands
| | - G Spijkers
- Department of Hospital Medicine, ZorgSaam Zeeuws-Vlaanderen, Terneuzen, the Netherlands
| | - J W Vermeijden
- Department of Intensive Care Medicine, Medisch Spectrum Twente, Enschede, the Netherlands
| | - E-J Wils
- Department of Intensive Care Medicine, Franciscus Gasthuis & Vlietland, Rotterdam, the Netherlands
| | - R J Stolker
- Department of Anesthesiology, Erasmus University Medical Center, Rotterdam, the Netherlands
| | - S E Hoeks
- Department of Anesthesiology, Erasmus University Medical Center, Rotterdam, the Netherlands
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Gosens I, Duistermaat E, Boere J, Fokkens P, Vidmar J, Löschner K, Delmaar C, Costa A, Peters R, Cassee F. Rat biodistribution of cerium dioxide and titanium dioxide nanomaterials after single and repeated inhalation exposure. Toxicol Lett 2021. [DOI: 10.1016/s0378-4274(21)00398-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Peters R, Harmer E, Boyde M. Uptake of Secondary Prevention in Patients With ACS and LVEF≤40%. Heart Lung Circ 2021. [DOI: 10.1016/j.hlc.2021.06.373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Koivukangas MM, Hietikko E, Strandberg T, Keinänen-Kiukaanniemi S, Leskinen R, Peters R, Antikainen R. The Prevalence of Frailty Using Three Different Frailty Measurements in Two Finnish Cohorts Born Before and After the Second World War. J Nutr Health Aging 2021; 25:611-617. [PMID: 33949627 DOI: 10.1007/s12603-021-1586-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVES To study the prevalence of frailty and its relationship to mortality in cohorts born before and after the Second World War using three different frailty measures. METHODS Cross-sectional data from two cohorts born in 1935 (n=593) and 1945 (n=714) were studied for frailty at the mean age of 70.7 (SD 1.8) years. Frailty was measured using the Frailty Phenotype (FP), the Frail Scale (FS) and the 74-item Frailty Index (FI>0.21 denoted frailty). Information on socioeconomic factors was obtained via a study questionnaire and the data on mortality were obtained from the Population Information System. RESULTS The prevalence of frailty by FI was more common in the older 1935 cohort than in the 1945 cohort (p<0.001). The percentage of robust subjects was higher in both sexes in the 1945 cohort using both FI and FS. After adjusting for sociodemographic factors, the difference in the prevalence of frailty between the cohorts remained significant in women only (OR 1.9 (95% CI 1.3-2.9), p=0.001). The FI classified people as frail more often (30.2% in the 1935 cohort and 17.5% in the 1945 cohort) than the FS (13.1% and 8.8%) or FP (1.8% and 1.6%). Low financial satisfaction was associated significantly with frailty in both sexes. Low level of education was associated with frailty in women and being unmarried or divorced in men. Frailty was associated to increased mortality using all frailty definitions in the 1935 cohort with a longer follow-up time. CONCLUSIONS Improved living conditions and health care may have resulted in the lower prevalence of frailty in the 1945 cohort. The present study further strengthens the association between frailty and mortality and poor economic status and frailty. Frailty definitions are in need of further study.
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Affiliation(s)
- M M Koivukangas
- Minna Koivukangas, Center for Life Course Health Research, Geriatrics, University of Oulu, PO Box 5000, 90014 University of Oulu, Finland. Tel: +358405916252. E-mail:
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Mieras L, Singh M, Manglani P, Arif M, Banstola N, Pandey B, Budiawan T, Utami R, Wibowo T, Iswandi A, Peters R, van Brakel W. A single dose of rifampicin to prevent leprosy; quantitative analysis of impact on perception, attitudes and behaviour of persons affected, contacts and community members towards leprosy in India, Nepal and Indonesia. LEPROSY REV 2020. [DOI: 10.47276/lr.91.4.314] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Mutsaers JHAM, Pool-Goudzwaard AL, Peters R, Koes BW, Verhagen AP. Recovery expectations of neck pain patients do not predict treatments outcome in manual therapy. Sci Rep 2020; 10:18518. [PMID: 33116233 PMCID: PMC7595084 DOI: 10.1038/s41598-020-74962-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 09/21/2020] [Indexed: 11/20/2022] Open
Abstract
Patient recovery expectations can predict treatment outcome. Little is known about the association of patient recovery expectations on treatment outcome in patients with neck pain consulting a manual therapist. This study evaluates the predictive value of recovery expectations in neck pain patients consulting manual therapists in the Netherlands. The primary outcome measure 'recovery' is defined as 'reduction in pain and perceived improvement'. A prospective cohort study a total of 1195 neck pain patients. Patients completed the Patient Expectancies List (PEL) at baseline (3 item questionnaire, score range from 3 to 12), functional status (NDI), the Global Perceived Effect (GPE) for recovery (7-points Likert scale) post treatment and pain scores (NRS) at baseline and post treatment. The relationship between recovery expectancy and recovery (dichotomized GPE scores) was assessed by logistic regression analysis. Patients generally reported high recovery expectations on all three questions of the PEL (mean sumscores ranging from 11.3 to 11.6). When adjusted for covariates the PEL sum-score did not predict recovery (explained variance was 0.10 for the total PEL). Separately, the first question of the PEL showed predictive potential (OR 3.7; 95%CI 0.19-73.74) for recovery, but failed to reach statistical significance. In this study patient recovery expectations did not predict treatment outcome. Variables predicting recovery were recurrence and duration of pain. The precise relationship between patient recovery expectations and outcome is complex and still inconclusive. Research on patient expectancy would benefit from more consistent use of theoretical expectancy and outcome models.
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Affiliation(s)
- J-H A M Mutsaers
- Institute for Master Education in Manual Therapy, SOMT, Amersfoort, The Netherlands.
- Department of General Practice, Erasmus MC, University Medical Centre Rotterdam, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands.
- Avans Hogeschool, University of Applied Sciences, P.O. Box 90116, 4800 RA, Breda, The Netherlands.
| | - A L Pool-Goudzwaard
- Institute for Master Education in Manual Therapy, SOMT, Amersfoort, The Netherlands
- Research Institute MOVE, Faculty of Human Movement Sciences, VU University Amsterdam, Van der Boechorststraat, 9, 1081 BT, Amsterdam, The Netherlands
| | - R Peters
- Institute for Master Education in Manual Therapy, SOMT, Amersfoort, The Netherlands
- Department of General Practice, Erasmus MC, University Medical Centre Rotterdam, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands
| | - B W Koes
- Department of General Practice, Erasmus MC, University Medical Centre Rotterdam, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands
- Center for Muscle and Joint Health, University of Southern Denmark, Odense, Denmark
| | - A P Verhagen
- Department of General Practice, Erasmus MC, University Medical Centre Rotterdam, P.O. Box 2040, 3000 CA, Rotterdam, The Netherlands
- Discipline of Physiotherapy, Graduate School of Health, University of Technology Sydney, Sydney, Australia
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Peters R, Karsten M, Röhle R, Blohmer JU, Speiser D. Assoziierte Tumore bei Familien mit BRCA1/BRCA2-Mutation im FBREK-Zentrum der Charité-Universitätsmedizin Berlin. Geburtshilfe Frauenheilkd 2020. [DOI: 10.1055/s-0040-1718170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Affiliation(s)
- R Peters
- Charité – Universitätsmedizin Berlin, Klinik für Gynäkologie mit Brustzentrum
| | - M.M Karsten
- Charité – Universitätsmedizin Berlin, Klinik für Gynäkologie mit Brustzentrum
| | - R Röhle
- Charité – Universitätsmedizin Berlin, Institut für Biometrie und Klinische Epidemiologie
| | - J.-U Blohmer
- Charité – Universitätsmedizin Berlin, Klinik für Gynäkologie mit Brustzentrum
| | - D Speiser
- Charité – Universitätsmedizin Berlin, Klinik für Gynäkologie mit Brustzentrum
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Schorn F, Samsun R, Peters R, Stolten D. Methanol: Basischemikalie heute, Energieimportmedium und Ausgangsstoff für erneuerbare Kraftstoffe morgen? CHEM-ING-TECH 2020. [DOI: 10.1002/cite.202055089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- F. Schorn
- Forschungszentrum Jülich GmbH IEK-14: Institut für Elektrochemische Verfahrenstechnik Wilhelm-Johnen-Straße 52428 Jülich Deutschland
| | - R. C. Samsun
- Forschungszentrum Jülich GmbH IEK-14: Institut für Elektrochemische Verfahrenstechnik Wilhelm-Johnen-Straße 52428 Jülich Deutschland
| | - R. Peters
- Forschungszentrum Jülich GmbH IEK-14: Institut für Elektrochemische Verfahrenstechnik Wilhelm-Johnen-Straße 52428 Jülich Deutschland
| | - D. Stolten
- Forschungszentrum Jülich GmbH IEK-3: Institut für Techno-ökonomische Systemanalyse Wilhelm-Johnen-Straße 52428 Jülich Deutschland
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Park JB, Peters R, Pham Q, Wang TTY. Javamide-II Inhibits IL-6 without Significant Impact on TNF-alpha and IL-1beta in Macrophage-Like Cells. Biomedicines 2020; 8:biomedicines8060138. [PMID: 32485858 PMCID: PMC7344767 DOI: 10.3390/biomedicines8060138] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 05/24/2020] [Accepted: 05/27/2020] [Indexed: 12/14/2022] Open
Abstract
The main aim of this study is to find a therapeutic compound to inhibit IL-6, not TNF-alpha and IL-1beta, in macrophage-like cells, because the high-levels of IL-6 production by macrophages are reported to cause unfavorable outcomes under several disease conditions (e.g., autoimmune diseases, and acute viral infections, including COVID-19). In this study, the potential effects of javamide-II on IL-6, IL-1beta and TNF-alpha productions were determined using their ELISA kits in macrophage-like THP-1 cells. Western blots were also performed using the same cells, to determine its effects on signaling pathways (ERK, p38, JNK, c-Fos, ATF-2, c-Jun and NF-κB p65). At concentrations of 0.2–40 µM, javamide-II inhibited IL-6 production significantly in the THP-1 cells (IC50 of 0.8 µM) (P < 0.02). However, javamide-II did not inhibit IL-1beta or TNF-alpha productions much at the same concentrations. In addition, the treatment of javamide-II decreased the phosphorylation of p38 without significant effects on ERK and JNK phosphorylations in the THP-1 cells. Furthermore, the p38 inhibition, followed by the reduction of ATF-2 phosphorylation (not c-Fos, c-Jun or NF-κB p65), led to the suppression of IL-6 mRNA expression in the cells (P < 0.02). The data indicate that javamide-II may be a potent compound to inhibit IL-6 production via suppressing the p38 signal pathway, without significant effects on the productions of TNF-alpha and IL-1beta in macrophage-like THP-1 cells.
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Affiliation(s)
- Jae B. Park
- Correspondence: ; Tel.: +301-504-8365; Fax: +301-504-9062
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Rampley CPN, Whitehead PG, Softley L, Hossain MA, Jin L, David J, Shawal S, Das P, Thompson IP, Huang WE, Peters R, Holdship P, Hope R, Alabaster G. River toxicity assessment using molecular biosensors: Heavy metal contamination in the Turag-Balu-Buriganga river systems, Dhaka, Bangladesh. Sci Total Environ 2020; 703:134760. [PMID: 31744697 DOI: 10.1016/j.scitotenv.2019.134760] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 09/29/2019] [Accepted: 09/29/2019] [Indexed: 06/10/2023]
Abstract
Pollution in rapidly urbanising cities and in delta systems is a serious problem that blights the lives and livelihoods of millions of people, damaging and restricting potable water supply and supplies to industry (Whitehead et al, 2015, 2018). Employing new technology based on luminescent molecular biosensors, the toxicity in the rivers around Dhaka in Bangladesh, namely the Turag, Tongi, Balu and Buriganga, has been assessed. Samples taken at 36 sites during medium and low flow conditions and during the Bishwa Ijtema Festival revealed high levels of cell toxicity, as well as high concentrations of metals, particularly aluminium, cadmium, chromium, iron, zinc, lithium, selenium and nickel. Chemical analysis also revealed low dissolved oxygen levels and anoxic conditions in the rivers at certain sites. The bacterial molecular biosensors were demonstrated to be fast, with results in 30 min, robust and a highly sensitive method for the assessment of water toxicity in the field. Furthermore, the biosensor toxicity analysis correlated with the metals data, and a multivariate regression relationship was developed relating toxicity to key metals, such a selenium, zinc and chromium. The resulting model has been validated against split samples and the Bishwa Ijtema Festival data. The combination of modelling and the molecular biosensor technology provides a new approach to detecting and managing pollution in urban river systems.
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Affiliation(s)
- C P N Rampley
- Oxford Molecular Biosensors, Centre for Innovation and Enterprise, Begbroke, Oxford OX5 1PF, UK
| | - P G Whitehead
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK; Oxford Molecular Biosensors, Centre for Innovation and Enterprise, Begbroke, Oxford OX5 1PF, UK.
| | - L Softley
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK
| | - M A Hossain
- Institute of Water and Flood Management (IWFM), Bangladesh University of Engineering and Technology (BUET), Dhaka 1000, Bangladesh
| | - L Jin
- Geology Department, State University of New York College at Cortland, Cortland, NY 13045, USA
| | - J David
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK
| | - S Shawal
- Institute of Water and Flood Management (IWFM), Bangladesh University of Engineering and Technology (BUET), Dhaka 1000, Bangladesh
| | - P Das
- Institute of Water and Flood Management (IWFM), Bangladesh University of Engineering and Technology (BUET), Dhaka 1000, Bangladesh
| | - I P Thompson
- Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PF, UK
| | - W E Huang
- Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PF, UK
| | - R Peters
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK
| | - P Holdship
- Department of Earth Sciences, University of Oxford, Parks Road, OX1 3AN, UK
| | - R Hope
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK
| | - G Alabaster
- United Nations Human Settlements Programme, Waste Management and Sanitation Division, Palais des Nations, Avenue de la Paix, 8-14, 1211 Genève, Switzerland
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15
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Whitehead PG, Bussi G, Peters R, Hossain MA, Softley L, Shawal S, Jin L, Rampley CPN, Holdship P, Hope R, Alabaster G. Modelling heavy metals in the Buriganga River System, Dhaka, Bangladesh: Impacts of tannery pollution control. Sci Total Environ 2019; 697:134090. [PMID: 32380601 DOI: 10.1016/j.scitotenv.2019.134090] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/22/2019] [Accepted: 08/22/2019] [Indexed: 06/11/2023]
Abstract
Heavy metal pollution from tanneries is a global problem in many rapidly developing economies. Effluent discharges into rivers cause serious problems for water quality, damaging ecology and threatening the livelihoods of people, especially in developing urban centres which often have a high concentration of factories. The industry intensive capital area of Bangladesh is impacted with high levels of metals pollution in rivers in the Greater Dhaka Watershed. Sampling and modelling studies have been undertaken to assess pollution in the Buriganga River System in Dhaka. The process based, dynamic model INCA (Integrated Catchments) model has been used to simulate metals along the Buriganga River System in Central Dhaka. Observed and simulated metals concentrations are high, and the model shows that the proposed transfer of the tannery industry upstream helps to reduce the pollution significantly downstream. However, moving the industry upstream may be counterproductive as it is discharged into the upper reaches of the river. This will create pollution upstream unless the newly constructed effluent treatment system can operate at a high level.
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Affiliation(s)
- P G Whitehead
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK; Oxford Molecular Biosensors, Centre for Innovation and Enterprise, Begbroke, Oxford OX5 1PF, UK.
| | - G Bussi
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK
| | - R Peters
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK
| | - M A Hossain
- Institute of Water and Flood Management (IWFM), Bangladesh University of Engineering and Technology (BUET), Dhaka 1000, Bangladesh
| | - L Softley
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK
| | - S Shawal
- Institute of Water and Flood Management (IWFM), Bangladesh University of Engineering and Technology (BUET), Dhaka 1000, Bangladesh
| | - L Jin
- Geology Department, State University of New York College at Cortland, Cortland, NY 13045, USA
| | - C P N Rampley
- Oxford Molecular Biosensors, Centre for Innovation and Enterprise, Begbroke, Oxford OX5 1PF, UK
| | - P Holdship
- Department of Earth Sciences, University of Oxford, Parks Road, OX1 3AN, UK
| | - R Hope
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK
| | - G Alabaster
- United Nations Human Settlements Programme, Waste Management and Sanitation Division, Palais des Nations, Avenue de la Paix, 8-14, 1211 Genève, Switzerland
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16
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Boyde M, Peters R, McGlynn E. 1109Enhancing transition from hospital to home for people with cardiovascular disease. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Health care services have a responsibility to ensure transition from hospital to home is seamless as this is a vulnerable time for patients. In 2013 the Cardiac Rehabilitation (CR) and Heart Failure (HF) Management Programs at a large tertiary referral hospital in our city, were re-configured to become one cardiac service. This model of care incorporated management of patients along the continuum of cardiac illness from initial diagnosis to end stage disease including end stage heart failure and intractable angina. This model included nurse-led in-patient consultations, post-discharge case management, CR and HF education and exercise programs, HF titration clinics, and home visits. Within health-care, organisational design can be considered a variable and evolving tool for improving the quality of patient care. The redesign of two clinical services provided an opportunity to improve health-care delivery for patients with cardiovascular disease.
Purpose
To evaluate a patient centred post-discharge model of care for patients admitted to hospital for an acute cardiovascular event.
Methods
A retrospective analysis of routinely collected data was undertaken using standard descriptive statistics to report the number of in-patient consultations, referrals generated, patients case-managed and all cause unplanned readmissions within 28 days of hospital discharge.
Results
Data was analysed from 1 January 2014 to 31 December 2018. Over the 5 years 11929 in-patients with cardiovascular disease received consultations from specialised nursing staff employed in the amalgamated cardiac service and 10598 (89%) patients were referred to appropriate post discharge CR and HF programs. From the in-patient consultations, 2254 (21%) patients who lived within our geographical area were case-managed by our specialist nursing staff. Post-discharge follow-up within 14 days was achieved for 1917 (85%) of these patients. Of the 2254 patients, 322 (14%) had an unplanned all cause readmission within 28 days of hospital discharge.
Conclusion
The evaluation data indicates that our model of integrated care provided effective post discharge management for patients with cardiac disease. Developing a model of care for these patients is challenging as they need to engage in self-care and adhere to a complex medication regime often with changing dosages. However effective case management post discharge including secondary prevention programs can decrease readmissions and improve outcomes for these patients.
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Affiliation(s)
- M Boyde
- Princess Alexandra Hospital, Brisbane, Australia
| | - R Peters
- Princess Alexandra Hospital, Brisbane, Australia
| | - E McGlynn
- Princess Alexandra Hospital, Brisbane, Australia
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17
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Kumaran G, Razzaq M, Velikova G, Papaxoinis G, Corker S, Fox F, Peters R, Kamposioras K. Patient understanding of the aim and duration of treatment during the consent process. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz155.157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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18
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Peters R, Beckett N, Antikainen R, Rockwood K, Bulpitt CJ, Anstey KJ. Subjective memory complaints and incident dementia in a high risk older adult hypertensive population. Age Ageing 2019; 48:253-259. [PMID: 30615065 DOI: 10.1093/ageing/afy193] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 06/07/2018] [Accepted: 12/02/2018] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND there is a growing body of evidence demonstrating an association between subjective memory complaints (SMC) and an increased risk of incident cognitive decline or dementia. To date this has not been examined in hypertensive older adults, a prevalent and growing population group at high risk of cognitive decline. METHODS using data from participants in the Hypertension in the Very Elderly Trial cohort the association between baseline SMC and incident cognitive decline and dementia was examined using Cox proportional hazard regression. Cognitive function was assessed using the Mini-Mental State Exam and diagnoses of dementia were made using standard diagnostic criteria. SMC was assessed by the question 'do you feel that you have more problems with memory than most?' Analyses were rerun to examine the associations by level of baseline cognitive function, to evaluate the role of SMC by dementia type and by sex. RESULTS baseline SMC were associated with an increased risk of developing any dementia (hazard ratio (HR)1.63 (95% confidence intervals (CI): 1.18:2.25)), Alzheimer's disease (HR1.59 (95% CI: 1.08:2.34)) and vascular dementia (HR2.05 (95% CI: 1.19:3.54)). Similar patterns were seen across all levels of baseline MMSE but were strongest in those with scores of 25-27. There were no clear differences by sex. DISCUSSION a positive report of SMC assessed by a single question in an older adult with hypertension raises the possibility of increased risk of incident dementia. As such its use may be a useful addition to the repertoire of the general practitioner and geriatrician when assessing older adults.
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Affiliation(s)
- R Peters
- Neuroscience Research Australia, Sydney, Australia
| | - N Beckett
- Guys and St Thomas’ NHS Foundation Trust, London, UK
| | | | | | | | - K J Anstey
- Neuroscience Research Australia, Sydney, Australia
- University of New South Wales, Sydney, Australia
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19
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Stojkov J, Bowers G, Draper M, Duffield T, Duivenvoorden P, Groleau M, Haupstein D, Peters R, Pritchard J, Radom C, Sillett N, Skippon W, Trépanier H, Fraser D. Hot topic: Management of cull dairy cows—Consensus of an expert consultation in Canada. J Dairy Sci 2018; 101:11170-11174. [DOI: 10.3168/jds.2018-14919] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 08/27/2018] [Indexed: 11/19/2022]
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20
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Decker M, Schorn F, Samsun R, Peters R, Stolten D. Markteintrittsstrategie für Power-to-Liquid-Kraftstoffe - Techno-ökonomische Analyse eines Stand-Alone-Systems. CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201855027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- M. Decker
- Forschungszentrum Jülich GmbH; Electrochemische Verfahrenstechnik (IEK-3); 52425 Jülich Deutschland
| | - F. Schorn
- Forschungszentrum Jülich GmbH; Electrochemische Verfahrenstechnik (IEK-3); 52425 Jülich Deutschland
| | - R. C. Samsun
- Forschungszentrum Jülich GmbH; Electrochemische Verfahrenstechnik (IEK-3); 52425 Jülich Deutschland
| | - R. Peters
- Forschungszentrum Jülich GmbH; Electrochemische Verfahrenstechnik (IEK-3); 52425 Jülich Deutschland
| | - D. Stolten
- Forschungszentrum Jülich GmbH; Electrochemische Verfahrenstechnik (IEK-3); 52425 Jülich Deutschland
- RWTH Aachen; Chair for Fuel Cells; 52072 Aachen Deutschland
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21
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Weiske S, Schemme S, Samsun R, Peters R, Stolten D. Techno-ökonomische Bewertung einer integrierten Produktionsanlage zur Herstellung von synthetischem Benzin. CHEM-ING-TECH 2018. [DOI: 10.1002/cite.201855030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- S. Weiske
- Forschungszentrum Jülich GmbH; Institut für Elektrochemische Verfahrenstechnik (IEK-3); Wilhelm-Johnen-Straße 52425 Jülich Deutschland
| | - S. Schemme
- Forschungszentrum Jülich GmbH; Institut für Elektrochemische Verfahrenstechnik (IEK-3); Wilhelm-Johnen-Straße 52425 Jülich Deutschland
| | - R. C. Samsun
- Forschungszentrum Jülich GmbH; Institut für Elektrochemische Verfahrenstechnik (IEK-3); Wilhelm-Johnen-Straße 52425 Jülich Deutschland
| | - R. Peters
- Forschungszentrum Jülich GmbH; Institut für Elektrochemische Verfahrenstechnik (IEK-3); Wilhelm-Johnen-Straße 52425 Jülich Deutschland
| | - D. Stolten
- Forschungszentrum Jülich GmbH; Institut für Elektrochemische Verfahrenstechnik (IEK-3); Wilhelm-Johnen-Straße 52425 Jülich Deutschland
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22
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De Vries TI, Peters R, Beckett NS, Dorresteijn JAN, Westerink J, Emmelot-Vonk MH, Muller M, Van Der Graaf Y, Bulpitt CJ, Visseren FLJ. 114Estimating individual cardiovascular disease risk reduction by blood pressure lowering in elderly patients: results from the HYVET study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- T I De Vries
- University Medical Center Utrecht, Vascular Medicine, Utrecht, Netherlands
| | - R Peters
- Imperial College London, School of Public Health, London, United Kingdom
| | - N S Beckett
- Imperial College London, Imperial Clinical Trials Unit, London, United Kingdom
| | - J A N Dorresteijn
- University Medical Center Utrecht, Vascular Medicine, Utrecht, Netherlands
| | - J Westerink
- University Medical Center Utrecht, Vascular Medicine, Utrecht, Netherlands
| | - M H Emmelot-Vonk
- University Medical Center Utrecht, Department of Geriatrics, Utrecht, Netherlands
| | - M Muller
- VU University Medical Center, Department of Internal Medicine, Amsterdam, Netherlands
| | - Y Van Der Graaf
- Julius Health Center - Julius Gezondheidscentra, Utrecht, Netherlands
| | - C J Bulpitt
- Imperial College London, Imperial Clinical Trials Unit, London, United Kingdom
| | - F L J Visseren
- University Medical Center Utrecht, Vascular Medicine, Utrecht, Netherlands
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23
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Brooijmans T, Okhuijsen R, Oerlemans I, Schoenmakers PJ, Peters R. Acid monomer analysis in waterborne polymer systems by targeted labeling of carboxylic acid functionality, followed by pyrolysis - gas chromatography. J Chromatogr A 2018; 1560:63-70. [PMID: 29773340 DOI: 10.1016/j.chroma.2018.05.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 05/07/2018] [Accepted: 05/12/2018] [Indexed: 10/16/2022]
Abstract
Pyrolysis - gas chromatography - (PyGC) is a common method to analyse the composition of natural and synthetic resins. The analysis of acid functionality in, for example, waterborne polyacrylates and polyurethanes polymers has proven to be difficult due to solubility issues, inter- and intramolecular interaction effects, lack of detectability in chromatographic analysis, and lack of thermal stability. Conventional analytical techniques, such as PyGC, cannot be used for the direct detection and identification of acidic monomers, due to thermal rearrangements that take place during pyrolysis. To circumvent this, the carboxylic acid groups are protected prior to thermal treatment by reaction with 2-bromoacetophenone. Reaction conditions are investigated and optimised wrt. conversion measurements. The aproach is applied to waterborne polyacryalates and the results are discussed. This approach enables identification and (semi)quantitative analysis of different acid functionalities in waterborne polymers by PyGC.
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Affiliation(s)
- T Brooijmans
- DSM Coating Resins, Analytical Technology Centre, Waalwijk, The Netherlands.
| | - R Okhuijsen
- DSM Coating Resins, Analytical Technology Centre, Waalwijk, The Netherlands
| | - I Oerlemans
- DSM Coating Resins, Analytical Technology Centre, Waalwijk, The Netherlands
| | - P J Schoenmakers
- University of Amsterdam, van't Hoff Institute for Molecular Science (HIMS), Amsterdam, The Netherlands
| | - R Peters
- DSM Coating Resins, Analytical Technology Centre, Waalwijk, The Netherlands; University of Amsterdam, van't Hoff Institute for Molecular Science (HIMS), Amsterdam, The Netherlands
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24
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Snijder M, Bot M, Snoek F, Stronks K, Lok A, Peters R, Penninx B. 2.1-O1Do type 2 diabetes patients in ethnic minority groups in the Netherlands suffer more frequently from depressed mood? The HELIUS study. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky047.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- M Snijder
- Dept Public Health, AMC, Amsterdam, The Netherlands
| | - M Bot
- Dept Psychiatry, VUmc, Amsterdam, The Netherlands
| | - F Snoek
- Dept Medical Psychology, VUmc, Amsterdam, The Netherlands
- Dept Medical Psychology, AMC, Amsterdam, The Netherlands
| | - K Stronks
- Dept Public Health, AMC, Amsterdam, The Netherlands
| | - A Lok
- Dept Psychiatry, AMC, Amsterdam, The Netherlands
| | - R Peters
- Dept Cardiology, AMC, Amsterdam, The Netherlands
| | - B Penninx
- Dept Psychiatry, VUmc, Amsterdam, The Netherlands
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25
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Hoenink J, Beune E, Hartman M, Snijder M, Dijkshoorn H, Peters R, Bal E, de Graft-Aikins A, Stronks K, Nicolaou M. 7.1-O6The body size ideals and body size satisfaction of Dutch residents and African-origin residents living in Amsterdam. The HELIUS Study. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky047.236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- J Hoenink
- Department of Public Health, Academic Medical Centre, University of Amsterdam, Amsterdam Public Health Research Institute, The Netherlands
| | - E Beune
- Department of Public Health, Academic Medical Centre, University of Amsterdam, Amsterdam Public Health Research Institute, The Netherlands
| | - M Hartman
- Department of Public Health, Academic Medical Centre, University of Amsterdam, Amsterdam Public Health Research Institute, The Netherlands
| | - M Snijder
- Department of Public Health, Academic Medical Centre, University of Amsterdam, Amsterdam Public Health Research Institute, The Netherlands
| | - H Dijkshoorn
- Department of Epidemiology, Health Promotion and Care Innovation, Public Health Service of Amsterdam, The Netherlands
| | - R Peters
- Department of Cardiology, Academic Medical Centre, University of Amsterdam, The Netherlands
| | - E Bal
- Department of Social and Cultural Anthropology, VU University, Amsterdam, The Netherlands
| | - A de Graft-Aikins
- Regional Institute for Population Studies, University of Ghana, Ghana
| | - K Stronks
- Department of Public Health, Academic Medical Centre, University of Amsterdam, Amsterdam Public Health Research Institute, The Netherlands
| | - M Nicolaou
- Department of Public Health, Academic Medical Centre, University of Amsterdam, Amsterdam Public Health Research Institute, The Netherlands
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26
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Muilwijk M, Celis-Morales C, Peters R, Snijder M, Vaz F, Gill J, van Valkengoed I. 5.10-P7The association of acylcarnitines and amino acids with age in Dutch and South-Asian Surinamese living in Amsterdam, the Netherlands: results from the HELIUS study. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky048.193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- M Muilwijk
- Department of Public Health, Academic Medical Center, University of Amsterdam, The Netherlands
| | - C Celis-Morales
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, United Kingdom
| | - R Peters
- Cardiology Department, Academic Medical Center, University of Amsterdam, The Netherlands
| | - M Snijder
- Department of Public Health, Academic Medical Center, University of Amsterdam, The Netherlands
| | - F Vaz
- Laboratory Genetic Metabolic Diseases, Academic Medical Center, University of Amsterdam, The Netherlands
| | - J Gill
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, United Kingdom
| | - I van Valkengoed
- Department of Public Health, Academic Medical Center, University of Amsterdam, The Netherlands
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27
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Anujuo K, Agyemang C, Snijder M, Jean-Louis G, van den Born B, Peters R, Stronks K. 2.1-O5The contribution of short sleep duration to ethnic differences in cardiovascular disease in the Netherlands - the HELIUS study. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky047.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- K Anujuo
- Academic Medical Center, University of Amsterdam, The Netherlands
| | - C Agyemang
- Academic Medical Center, University of Amsterdam, The Netherlands
| | - M Snijder
- Academic Medical Center, University of Amsterdam, The Netherlands
| | - G Jean-Louis
- New York University School of Medicine, United States of America
| | - B van den Born
- Academic Medical Center, University of Amsterdam, The Netherlands
| | - R Peters
- Academic Medical Center, University of Amsterdam, The Netherlands
| | - K Stronks
- Academic Medical Center, University of Amsterdam, The Netherlands
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28
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Anstey KJ, Peters R. Oversimplification of Dementia Risk Reduction Messaging Is a Threat to Knowledge Translation in Dementia Prevention Research. J Prev Alzheimers Dis 2018; 5:2-4. [PMID: 29405224 DOI: 10.14283/jpad.2017.27] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The evidence for specific risk factors for Alzheimer’s disease, vascular dementia and all cause dementia is increasing rapidly in quantity and quality. This has enabled the compilation of risk assessment tools for Alzheimer’s disease (1), and their validation (2). It has also supported the promulgation of public health messaging about dementia risk reduction or dementia prevention. In general these developments are strong advances in the field of dementia prevention. However, the oversimplification of the findings and possible over-or mis-interpretation of their meaning, poses risks to accurate and effective knowledge translation in this field. Lack of balance in the interpretation of evidence on risk factors for dementia may lead to trials of interventions for dementia prevention that are ineffective. This will waste resources and create pessimism about dementia prevention research. Two potential problems that may occur when translating evidence from observational research into prescriptions for prevention are identified here. The first is the generalisation of specific findings about risk factors either to multiple types of dementia or to multiple populations, when the evidence is in fact relevant to specific populations or outcomes. The second is the inference that reversal of a risk factor will lead to prevention, without knowledge of the threshold at which a factor becomes a ‘risk’, or evidence that reversal of the risk factor also reverses neuropathological processes instigated or caused by the risk factor.
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Affiliation(s)
- K J Anstey
- Kaarin J. Anstey, Florey Building, Mills Road, The Australian National University, Acton 0200, Australia. Ph. + 61 2 61258410.
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29
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Wong Y, Nunan T, Hickey A, Denaro C, Adsett J, Peters R, Atherton J. From Hospital to Home: Insights from the Queensland Statewide Heart Failure Support Services Registry on Heart Failure Transitional Care. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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30
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Kemal E, Peters R, Bourke S, Fairclough S, Bergstrom-Mann P, Owen DM, Sandiford L, Dailey LA, Green M. Magnetic conjugated polymer nanoparticles doped with a europium complex for biomedical imaging. Photochem Photobiol Sci 2018; 17:718-721. [DOI: 10.1039/c7pp00402h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Self-assembling conjugated polymer nanoparticles containing PVK and PLGA-PEG as a matrix polymer were doped with both a luminescent rare-earth complex and magnetic nanoparticles (SPIONs), giving rise to materials that are both luminescent and magnetic.
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Affiliation(s)
- E. Kemal
- Department of Physics
- King's College London
- Strand
- London
- UK
| | - R. Peters
- Department of Physics
- King's College London
- Strand
- London
- UK
| | - S. Bourke
- Department of Physics
- King's College London
- Strand
- London
- UK
| | - S. Fairclough
- Department of Physics
- King's College London
- Strand
- London
- UK
| | | | - D. M. Owen
- Department of Physics
- King's College London
- Strand
- London
- UK
| | - L. Sandiford
- Department of Physics
- King's College London
- Strand
- London
- UK
| | - L. A. Dailey
- Department of Pharmacy
- Martin-Luther-Universität Halle-Wittenberg
- 06120 Halle (Saale)
- Germany
| | - M. Green
- Department of Physics
- King's College London
- Strand
- London
- UK
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31
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Wong Y, Hickey A, Nunan T, Adsett J, Denaro C, Peters R, Atherton J. Gender Differences in Patient Characteristics and Quality-of-Care Indicators Among Referrals to Queensland Statewide Heart Failure Support Services. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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32
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Boyde M, Peters R, New N, Hwang R, Ha T, Korczyk D. Self-care educational intervention to reduce hospitalisations in heart failure: A randomised controlled trial. Eur J Cardiovasc Nurs 2017; 17:178-185. [DOI: 10.1177/1474515117727740] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Background: A variety of educational interventions have been implemented to assist patients with heart failure to maintain their own health, develop self-care behaviours and decrease readmissions. Aims: The purpose of this study was to determine the effectiveness of a multimedia educational intervention for patients with heart failure in reducing unplanned hospital readmissions. Methods: The study, a randomised controlled trial in a large tertiary referral hospital in Australia, recruited 200 patients. Patients diagnosed with heart failure were randomly allocated 1:1 to usual education or a multimedia educational intervention. The multimedia approach began with an individual needs assessment to develop an educational plan. The educational intervention included viewing a DVD, and verbal discussion supported by a written manual with a teach-back evaluation strategy. The primary outcome was all-cause unplanned hospital readmission at 28 days, three months and 12 months post-recruitment. The secondary outcomes were changes in knowledge and self-care behaviours at three months and 12 months post-recruitment. Results: At 12 months, data on 171 participants were analysed. There were 24 participants who had an unplanned hospital readmission in the intervention group compared to 44 participants in the control group ( p=0.005). The self-care educational intervention reduced the risk of readmission at 12 months by 30% (relative risk: 0.703; 95% confidence interval: 0.548–0.903). Conclusion: A targeted multimedia educational intervention can be effective in reducing all-cause unplanned readmissions for people with heart failure.
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Affiliation(s)
- M Boyde
- Princess Alexandra Hospital, Australia
- University of Queensland, Australia
| | - R Peters
- Princess Alexandra Hospital, Australia
- University of Queensland, Australia
| | - N New
- Princess Alexandra Hospital, Australia
| | - R Hwang
- Princess Alexandra Hospital, Australia
- University of Queensland, Australia
| | - T Ha
- Princess Alexandra Hospital, Australia
- University of Queensland, Australia
| | - D Korczyk
- Princess Alexandra Hospital, Australia
- University of Queensland, Australia
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33
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Jiang J, Mathijs K, Timmermans L, Claessen SM, Hecka A, Weusten J, Peters R, van Delft JH, Kleinjans JCS, Jennen DGJ, de Kok TM. The idiosyncratic drug-induced gene expression changes in HepG2 cells. Data Brief 2017; 14:462-468. [PMID: 28831409 PMCID: PMC5554930 DOI: 10.1016/j.dib.2017.07.074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Accepted: 07/27/2017] [Indexed: 11/09/2022] Open
Abstract
The inflammatory stress has been associated with an increase in susceptibility to idiosyncratic drug-induced liver injury (DILI). However, the molecular mechanisms of this inflammation-associated idiosyncratic drug hepatotoxicity remain unknown. We exposed HepG2 cells with high and low doses of three idiosyncratic (I) and three non-idiosyncratic (N) compounds, in the presence (I+ and N+) or absence (I− and N−) of a cytokine mix for 6, 12 and 24 h. To investigate the genome‐wide expression patterns, microarray was performed using the Agilent 4×44K Whole Human Genome chips. The data presented in this DIB include the expression of genes participating in the ceramide metabolism, ER stress, apoptosis and cell survival pathways. The functions of these genes were illustrated in our associated article (Jiang et al., 2017) [1]. Raw and normalized gene expression data are available through NCBI GEO (accession number GSE102006).
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Affiliation(s)
- J Jiang
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - K Mathijs
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - L Timmermans
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - S M Claessen
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - A Hecka
- DSM Resolve, Geleen, The Netherlands
| | - J Weusten
- DSM Resolve, Geleen, The Netherlands
| | - R Peters
- van't Hoff Institute for Molecular Science (HIMS), Universiteit van Amsterdam, Amsterdam, The Netherlands.,DSM Coating Resins, Waalwijk, The Netherlands
| | - J H van Delft
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - J C S Kleinjans
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - D G J Jennen
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - T M de Kok
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
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34
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Jiang J, Mathijs K, Timmermans L, Claessen SM, Hecka A, Weusten J, Peters R, van Delft JH, Kleinjans JCS, Jennen DGJ, de Kok TM. Omics-based identification of the combined effects of idiosyncratic drugs and inflammatory cytokines on the development of drug-induced liver injury. Toxicol Appl Pharmacol 2017; 332:100-108. [PMID: 28733206 DOI: 10.1016/j.taap.2017.07.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 07/08/2017] [Accepted: 07/17/2017] [Indexed: 12/13/2022]
Abstract
The mechanisms of idiosyncratic drug-induced hepatotoxicity remain largely unclear. It has demonstrated that the drug idiosyncrasy is potentiated in the context of inflammation and intracellular ceramides may play a role in this process. To study the mechanisms, HepG2 cells were co-treated with high and low doses of three idiosyncratic (I) and three non-idiosyncratic (N) compounds, with (I+ and N+) or without (I- and N-) a cytokine mix. Microarray, lipidomics and flow cytometry were performed to investigate the genome-wide expression patterns, the intracellular ceramide levels and the induction of apoptosis. We found that all I+ treatments significantly influenced the immune response- and response to stimulus-associated gene ontology (GO) terms, but the induction of apoptotic pathways, which was confirmed by flow cytometry, only appeared to be induced after the high-dose treatment. The ceramide signaling-, ER stress-, NF-kB activation- and mitochondrial activity-related pathways were biologically involved in apoptosis induced by the high-dose I+. Additionally, genes participating in ceramide metabolism were significantly altered resulting in a measurable increase in ceramide levels. The increases in ceramide concentrations may induce ER stress and activate the JNK pathway by affecting the expression of the related genes, and eventually trigger the mitochondria-independent apoptosis in hepatocytes. Overall, our study provides a potential mechanism to explain the role of inflammation in idiosyncratic drug reactions.
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Affiliation(s)
- J Jiang
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands.
| | - K Mathijs
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - L Timmermans
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - S M Claessen
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - A Hecka
- DSM Resolve, Geleen, The Netherlands
| | - J Weusten
- DSM Resolve, Geleen, The Netherlands
| | - R Peters
- Van 't Hoff Institute for Molecular Science (HIMS), Universiteit van Amsterdam, Amsterdam, The Netherlands; DSM Coating Resins, Waalwijk, The Netherlands
| | - J H van Delft
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - J C S Kleinjans
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - D G J Jennen
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - T M de Kok
- Department of Toxicogenomics, GROW School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
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35
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Ashley SE, Tan HTT, Peters R, Allen KJ, Vuillermin P, Dharmage SC, Tang MLK, Koplin J, Lowe A, Ponsonby AL, Molloy J, Matheson MC, Saffery R, Ellis JA, Martino D. Genetic variation at the Th2 immune gene IL13 is associated with IgE-mediated paediatric food allergy. Clin Exp Allergy 2017; 47:1032-1037. [PMID: 28544327 DOI: 10.1111/cea.12942] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 01/20/2017] [Accepted: 03/01/2017] [Indexed: 01/01/2023]
Abstract
BACKGROUND Food allergies pose a considerable world-wide public health burden with incidence as high as one in ten in 12-month-old infants. Few food allergy genetic risk variants have yet been identified. The Th2 immune gene IL13 is a highly plausible genetic candidate as it is central to the initiation of IgE class switching in B cells. OBJECTIVE Here, we sought to investigate whether genetic polymorphisms at IL13 are associated with the development of challenge-proven IgE-mediated food allergy. METHOD We genotyped nine IL13 "tag" single nucleotide polymorphisms (tag SNPs) in 367 challenge-proven food allergic cases, 199 food-sensitized tolerant cases and 156 non-food allergic controls from the HealthNuts study. 12-month-old infants were phenotyped using open oral food challenges. SNPs were tested using Cochran-Mantel-Haenszel test adjusted for ancestry strata. A replication study was conducted in an independent, co-located sample of four paediatric cohorts consisting of 203 food allergic cases and 330 non-food allergic controls. Replication sample phenotypes were defined by clinical history of reactivity, 95% PPV or challenge, and IL13 genotyping was performed. RESULTS IL13 rs1295686 was associated with challenge-proven food allergy in the discovery sample (P=.003; OR=1.75; CI=1.20-2.53). This association was also detected in the replication sample (P=.03, OR=1.37, CI=1.03-1.82) and further supported by a meta-analysis (P=.0006, OR=1.50). However, we cannot rule out an association with food sensitization. Carriage of the rs1295686 variant A allele was also associated with elevated total plasma IgE. CONCLUSIONS AND CLINICAL RELAVANCE We show for the first time, in two independent cohorts, that IL13 polymorphism rs1295686 (in complete linkage disequilibrium with functional variant rs20541) is associated with challenge-proven food allergy.
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Affiliation(s)
- S E Ashley
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,The Hudson Institute, Monash Translational Health Precinct (MTHP), Monash University, Clayton, Australia
| | - H-T T Tan
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - R Peters
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Department of Paediatrics, University of Melbourne, Parkville, Australia
| | - K J Allen
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Department of Paediatrics, University of Melbourne, Parkville, Australia.,Department of Allergy and Immunology, Royal Children's Hospital, Parkville, Australia.,Institute of Inflammation and Repair, University of Manchester, UK
| | - P Vuillermin
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Barwon Health, Child Health Research Unit, Geelong, Australia.,Deakin University, Waurn Ponds, Australia
| | - S C Dharmage
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Centre for Epidemiology and Biostatistics, School of Population and Global Health, The University of Melbourne, Melbourne, Australia
| | - M L K Tang
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Department of Paediatrics, University of Melbourne, Parkville, Australia.,Department of Allergy and Immunology, Royal Children's Hospital, Parkville, Australia
| | - J Koplin
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Centre for Epidemiology and Biostatistics, School of Population and Global Health, The University of Melbourne, Melbourne, Australia
| | - A Lowe
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Centre for Epidemiology and Biostatistics, School of Population and Global Health, The University of Melbourne, Melbourne, Australia
| | - A-L Ponsonby
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Department of Paediatrics, University of Melbourne, Parkville, Australia
| | - J Molloy
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Barwon Health, Child Health Research Unit, Geelong, Australia.,Deakin University, Waurn Ponds, Australia
| | - M C Matheson
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Department of Paediatrics, University of Melbourne, Parkville, Australia
| | - R Saffery
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,The Hudson Institute, Monash Translational Health Precinct (MTHP), Monash University, Clayton, Australia.,Department of Paediatrics, University of Melbourne, Parkville, Australia
| | - J A Ellis
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Department of Paediatrics, University of Melbourne, Parkville, Australia.,Centre for Social and Early Emotional Development, Faculty of Health, Deakin University, Australia
| | - D Martino
- Murdoch Childrens Research Institute, Royal Children's Hospital, Australia.,Department of Paediatrics, University of Melbourne, Parkville, Australia.,University of Western Australia, Department of Paediatrics, Australia
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Meißner J, Weiske S, Faidel D, Tschauder A, Samsun RC, Pasel J, Peters R, Stolten D. Highly integrated catalytic burner with laser-additive manufactured manifolds. REACT CHEM ENG 2017. [DOI: 10.1039/c6re00223d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This paper describes a highly integrated catalytic burner for auxiliary power units based on PEM-fuel cells.
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Affiliation(s)
- J. Meißner
- Forschungszentrum Jülich GmbH
- IEK-3: Institute of Electrochemical Process Engineering
- Jülich
- Germany
| | - S. Weiske
- Forschungszentrum Jülich GmbH
- IEK-3: Institute of Electrochemical Process Engineering
- Jülich
- Germany
| | - D. Faidel
- Forschungszentrum Jülich GmbH
- ZEA-1: Central Institute for Engineering and Technology
- Jülich
- Germany
| | - A. Tschauder
- Forschungszentrum Jülich GmbH
- IEK-3: Institute of Electrochemical Process Engineering
- Jülich
- Germany
| | - R. C. Samsun
- Forschungszentrum Jülich GmbH
- IEK-3: Institute of Electrochemical Process Engineering
- Jülich
- Germany
| | - J. Pasel
- Forschungszentrum Jülich GmbH
- IEK-3: Institute of Electrochemical Process Engineering
- Jülich
- Germany
| | - R. Peters
- Forschungszentrum Jülich GmbH
- IEK-3: Institute of Electrochemical Process Engineering
- Jülich
- Germany
| | - D. Stolten
- Forschungszentrum Jülich GmbH
- IEK-3: Institute of Electrochemical Process Engineering
- Jülich
- Germany
- Chair for Fuel Cells,
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37
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Peters R, Samsun R, Schemme S, Stolten D. Prozessketten zur Bereitstellung von Kraftstoffen aus Kohlendioxid und Wasserstoff. CHEM-ING-TECH 2016. [DOI: 10.1002/cite.201650487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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38
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Burrage M, Boyde M, Peters R, Jiggins L, Witt J, Korczyk D. Aquapheresis in Diuretic-Resistant Acute Decompensated Heart Failure: A Single Hospital Australian Experience. Heart Lung Circ 2016. [DOI: 10.1016/j.hlc.2016.06.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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39
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White D, Cox K, Peters R, Scholey A. Effects of four weeks supplementation with a multivitamin and mineral preparation on mood and functional brain activity. Journal of Nutrition & Intermediary Metabolism 2016. [DOI: 10.1016/j.jnim.2015.12.169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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40
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Peters R, Sandiford L, Owen DM, Kemal E, Bourke S, Dailey LA, Green M. Red-emitting protein-coated conjugated polymer nanoparticles. Photochem Photobiol Sci 2016; 15:1448-1452. [DOI: 10.1039/c6pp00160b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Red emitting materials are desirable in biology due to the transparency of certain biological tissues at these wavelengths.
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Affiliation(s)
- R. Peters
- Department of Physics
- King's College London
- Strand
- London WC2R 2LS
- UK
| | - L. Sandiford
- Department of Physics
- King's College London
- Strand
- London WC2R 2LS
- UK
| | - D. M. Owen
- Department of Physics
- King's College London
- Strand
- London WC2R 2LS
- UK
| | - E. Kemal
- Department of Physics
- King's College London
- Strand
- London WC2R 2LS
- UK
| | - S. Bourke
- Department of Physics
- King's College London
- Strand
- London WC2R 2LS
- UK
| | - L. A. Dailey
- Institute of Pharmaceutical Science
- King's College London
- London SE1 9NH
- UK
| | - M. Green
- Department of Physics
- King's College London
- Strand
- London WC2R 2LS
- UK
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41
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Farahi A, McKinlay A, Peters R, Henry A, Alawi F, Barton E, Giannakopoulos H. Atrophy of Masticatory Muscles in TMD Patients. J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.joms.2015.06.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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42
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Margaritis N, Blum L, Batfalsky P, Bohmann D, Ceschini S, Fang Q, Federmann D, Kroemer J, Peters R, Steinberger-Wilckens R. Status of Light Weight Cassette Design of SOFC. ACTA ACUST UNITED AC 2015. [DOI: 10.1149/06801.0209ecst] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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43
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Aschberger K, Gottardo S, Amenta V, Arena M, Moniz FB, Bouwmeester H, Brandhoff P, Mech A, Pesudo LQ, Rauscher H, Schoonjans R, Vettori MV, Peters R. Nanomaterials in Food - Current and Future Applications and Regulatory Aspects. ACTA ACUST UNITED AC 2015. [DOI: 10.1088/1742-6596/617/1/012032] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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44
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Peters R, Virani F, Haddadin Y, Baldowska H. A pain in the joints. Case Reports 2015; 2015:bcr-2014-207607. [DOI: 10.1136/bcr-2014-207607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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45
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Boyde M, Peters R, Hwang R, Korczyk D, Ha T, New N. The Self-Care Educational Intervention study: study protocol of a randomised controlled trial. Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.06.262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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46
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Grueters U, Seltmann T, Schmidt H, Horn H, Pranchai A, Vovides A, Peters R, Vogt J, Dahdouh-Guebas F, Berger U. The mangrove forest dynamics model mesoFON. Ecol Modell 2014. [DOI: 10.1016/j.ecolmodel.2014.07.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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47
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Peters R, Krupp C, Pasel J, Prawitz M, Tschauder A, Samsun R. Dynamischer Betrieb von autothermen Reformern in Brennstoffzellensystemen für die Bordstromversorgung. CHEM-ING-TECH 2014. [DOI: 10.1002/cite.201450414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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48
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Krekel D, Samsun R, Pasel J, Peters R. Strategien für den optimierten Betrieb von Brennstoffzellensystemen als Hilfsstromaggregate. CHEM-ING-TECH 2014. [DOI: 10.1002/cite.201450101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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49
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Krupp C, Prawitz M, Samsun R, Peters R, Stolten D. CFD-unterstützte Optimierung des Startvorgangs eines Brenngaserzeugungspackages für die Bordstromversorgung. CHEM-ING-TECH 2014. [DOI: 10.1002/cite.201450391] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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50
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McCue J, Osborne D, Dumont J, Peters R, Mei B, Pierce GF, Kobayashi K, Euwart D. Validation of the manufacturing process used to produce long-acting recombinant factor IX Fc fusion protein. Haemophilia 2014; 20:e327-35. [PMID: 24811361 PMCID: PMC4282370 DOI: 10.1111/hae.12451] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/27/2014] [Indexed: 11/28/2022]
Abstract
Recombinant factor IX Fc (rFIXFc) fusion protein is the first of a new class of bioengineered long-acting factors approved for the treatment and prevention of bleeding episodes in haemophilia B. The aim of this work was to describe the manufacturing process for rFIXFc, to assess product quality and to evaluate the capacity of the process to remove impurities and viruses. This manufacturing process utilized a transferable and scalable platform approach established for therapeutic antibody manufacturing and adapted for production of the rFIXFc molecule. rFIXFc was produced using a process free of human- and animal-derived raw materials and a host cell line derived from human embryonic kidney (HEK) 293H cells. The process employed multi-step purification and viral clearance processing, including use of a protein A affinity capture chromatography step, which binds to the Fc portion of the rFIXFc molecule with high affinity and specificity, and a 15 nm pore size virus removal nanofilter. Process validation studies were performed to evaluate identity, purity, activity and safety. The manufacturing process produced rFIXFc with consistent product quality and high purity. Impurity clearance validation studies demonstrated robust and reproducible removal of process-related impurities and adventitious viruses. The rFIXFc manufacturing process produces a highly pure product, free of non-human glycan structures. Validation studies demonstrate that this product is produced with consistent quality and purity. In addition, the scalability and transferability of this process are key attributes to ensure consistent and continuous supply of rFIXFc.
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Affiliation(s)
- J McCue
- Biogen IdecCambridge, MA, USA
| | | | | | | | - B Mei
- Biogen IdecCambridge, MA, USA
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