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Peters M, Van der Voort van Zyp J, Moerland M, Hoekstra C, Van de Pol S, Westendorp H, Maenhout M, Kattevilder R, Verkooijen H, Van Rossum P, Ahmed H, Shah T, Emberton M, Van Vulpen M. OC-0064: A prediction model for biochemical failure after salvage Iodine-125 prostate brachytherapy. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)31313-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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152
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Janssens G, Bolle S, Mandeville H, Ramos-Albiac M, Van Beek K, Benghiat H, Hoeben B, Morales la Madrid A, Peters M, Kortmann R, Von Bueren A, Van Vuurden D, Kramm C. PO-0769: Survival benefit for patients with diffuse intrinsic pontine glioma (DIPG) undergoing re-irradiation. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32019-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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153
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Peters M, Van der Voort van Zyp J, Hoekstra C, Westendorp H, Van de Pol S, Moerland M, Maenhout M, Kattevilder R, Van Vulpen M. PO-0974: Urethral and bladder dose of total and focal salvage brachytherapy: toxicity and dose constraints. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32224-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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154
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Maenhout M, Moerland M, Van Vliet-van den Ende K, Schokker R, Borot de Battisti M, Peters M, Van Vulpen M, Van der Voort van Zyp J. PV-0040: MRI guided focal primary and (secondary) salvage HDR-BT in prostate cancer patients seems safe. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)31289-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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155
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Peters M, van der Voort van Zyp JRN, Moerland MA, Hoekstra CJ, van de Pol S, Westendorp H, Maenhout M, Kattevilder R, Verkooijen HM, van Rossum PSN, Ahmed HU, Shah TT, Emberton M, van Vulpen M. Development and internal validation of a multivariable prediction model for biochemical failure after whole-gland salvage iodine-125 prostate brachytherapy for recurrent prostate cancer. Brachytherapy 2016; 15:296-305. [PMID: 26948662 DOI: 10.1016/j.brachy.2016.01.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 01/18/2016] [Accepted: 01/26/2016] [Indexed: 11/28/2022]
Abstract
BACKGROUND Localized recurrent prostate cancer after primary radiotherapy can be curatively treated using salvage iodine-125 ((125)I) brachytherapy. Selection is hampered by a lack of predictive factors for cancer control. This study aims to develop and internally validate a prognostic model for biochemical failure (BF) after salvage (125)I brachytherapy. METHODS AND MATERIALS Whole-gland salvage (125)I brachytherapy patients were treated between 1993 and 2010 in two radiotherapy centers in the Netherlands. Multivariable Cox regression was performed to assess the predictive value of clinical parameters related to BF (Phoenix-definition [prostate-specific antigen [PSA]-nadir + 2.0 ng/mL]). Missing data were handled by multiple imputation. The model's discriminatory ability was assessed with Harrell's C-statistic. Internal validation was performed using bootstrap resampling (2000 data sets). Goodness-of-fit was evaluated with calibration plots. All analyses were performed using the recently published TRIPOD (Transparent reporting of a multivariable prediction model for individual prognosis or diagnosis) statement. RESULTS After median followup of 74 months (range 5-138), 43 of a total 62 patients developed BF. In multivariable analysis, disease-free survival interval (DFSI) after primary therapy and pre-salvage prostate-specific antigen doubling time (PSADT) were predictors of BF: corrected hazard ratio (HR) 0.99 (95% confidence interval 0.97-0.999; p = 0.04) and 0.94 (95% confidence interval 0.89-0.99; p = 0.03), both for a 1-month increase (optimism-adjusted C-statistic 0.70). Calibration was accurate up to 36 months. Of patients with PSADT >30 months and DFSI >60 months, 36-month biochemical disease-free survival was >75%. Every 12-month increase in DFSI will allow 3-month decrease in PSADT while maintaining the same biochemical recurrence-free rates. CONCLUSIONS We have presented results from a cohort of patients undergoing salvage (125)I-brachytherapy. Our data show that better selection of patients is possible with the DFSI and PSADT.
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Hazendonk HCAM, Lock J, Mathôt RAA, Meijer K, Peters M, Laros-van Gorkom BAP, van der Meer FJM, Driessens MHE, Leebeek FWG, Fijnvandraat K, Cnossen MH. Perioperative treatment of hemophilia A patients: blood group O patients are at risk of bleeding complications. J Thromb Haemost 2016; 14:468-78. [PMID: 26714028 DOI: 10.1111/jth.13242] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 11/30/2015] [Indexed: 12/19/2022]
Abstract
UNLABELLED ESSENTIALS: Targeting of factor VIII values is a challenge during perioperative replacement therapy in hemophilia. This study aims to identify the extent and predictors of factor VIII underdosing and overdosing. Blood group O predicts underdosing and is associated with perioperative bleeding. To increase quality of care and cost-effectiveness of treatment, refining of dosing is obligatory. SUMMARY BACKGROUND Perioperative administration of factor VIII (FVIII) concentrate in hemophilia A may result in both underdosing and overdosing, leading to respectively a risk of bleeding complications and unnecessary costs. OBJECTIVES This retrospective observational study aims to identify the extent and predictors of underdosing and overdosing in perioperative hemophilia A patients (FVIII levels < 0.05 IU mL(-1)). PATIENTS AND METHODS One hundred nineteen patients undergoing 198 elective, minor, or major surgical procedures were included (median age 40 years, median body weight 75 kg). Perioperative management was evaluated by quantification of perioperative infusion of FVIII concentrate and achieved FVIII levels. Predictors of underdosing and (excessive) overdosing were analyzed by logistic regression analysis. Excessive overdosing was defined as upper target level plus ≥ 0.20 IU mL(-1). RESULTS Depending on postoperative day, 7-45% of achieved FVIII levels were under and 33-75% were above predefined target ranges as stated by national guidelines. A potential reduction of FVIII consumption of 44% would have been attained if FVIII levels had been maintained within target ranges. Blood group O and major surgery were predictive of underdosing (odds ratio [OR] 6.3, 95% confidence interval [CI] 2.7-14.9; OR 3.3, 95% CI 1.4-7.9). Blood group O patients had more bleeding complications in comparison to patients with blood group non-O (OR 2.02, 95% CI 1.00-4.09). Patients with blood group non-O were at higher risk of overdosing (OR 1.5, 95% CI 1.1-1.9). Additionally, patients treated with bolus infusions were at higher risk of excessive overdosing (OR 1.8, 95% CI 1.3-2.4). CONCLUSION Quality of care and cost-effectiveness can be improved by refining of dosing strategies based on individual patient characteristics such as blood group and mode of infusion.
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Torres J, Rutherfurd SM, Muñoz LS, Peters M, Montoya CA. The impact of heating and soaking on the in vitro enzymatic hydrolysis of protein varies in different species of tropical legumes. Food Chem 2016; 194:377-82. [DOI: 10.1016/j.foodchem.2015.08.022] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 08/06/2015] [Accepted: 08/07/2015] [Indexed: 11/25/2022]
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Schrijvers LH, Beijlevelt ‐ van der Zande M, Peters M, Lock J, Cnossen MH, Schuurmans MJ, Fischer K. Self‐infusion of prophylaxis: evaluating the quality of its performance and time needed. Haemophilia 2016; 22:e214-7. [DOI: 10.1111/hae.12883] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/26/2015] [Indexed: 11/29/2022]
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159
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Farhat NM, Hutchinson LS, Peters M. Elevated International Normalized Ratio values in a patient receiving warfarin and ceftaroline. Am J Health Syst Pharm 2016; 73:56-9. [PMID: 26721534 DOI: 10.2146/ajhp140897] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
PURPOSE The case of a patient whose International Normalized Ratio (INR) became elevated due to a probable interaction between ceftaroline and warfarin is reported. SUMMARY A 65-year-old African-American man developed an INR of >18.0 after completing 12 days of ceftaroline therapy for the treatment of cellulitis while taking warfarin therapy. The patient was on warfarin due to his history of deep vein thrombosis of a lower extremity and pulmonary embolism, and his INR was consistently therapeutic for approximately 2 years before ceftaroline therapy. The patient reported no known drug allergies, had no history of adverse drug reactions, and had no recent changes in medications or diet. Phytonadione was administered, and the patient's INR began to decrease, returning to a therapeutic range of 2.30 after approximately 48 hours, at which time warfarin was restarted. After six days of hospitalization, the patient was discharged on his previous regimen of warfarin 7.5 mg orally once daily, with a therapeutic INR of 2.11. His cellulitis had resolved, so no further antibiotic therapy was warranted. To determine the likelihood of the drug interaction between warfarin and ceftaroline in this patient, the Drug Interaction Probability Scale of Horn and colleagues was applied and yielded a score of 6, indicating a probable likelihood of an interaction. Rechallenge was not attempted, as the patient's cellulitis had resolved and there were no evident signs or symptoms of infection. CONCLUSION A 65-year-old man experienced an increase in INR values after the addition of ceftaroline to his medication regimen.
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Pilling LC, Joehanes R, Kacprowski T, Peters M, Jansen R, Karasik D, Kiel DP, Harries LW, Teumer A, Powell J, Levy D, Lin H, Lunetta K, Munson P, Bandinelli S, Henley W, Hernandez D, Singleton A, Tanaka T, van Grootheest G, Hofman A, Uitterlinden AG, Biffar R, Gläser S, Homuth G, Malsch C, Völker U, Penninx B, van Meurs JBJ, Ferrucci L, Kocher T, Murabito J, Melzer D. Gene transcripts associated with muscle strength: a CHARGE meta-analysis of 7,781 persons. Physiol Genomics 2016; 48:1-11. [PMID: 26487704 PMCID: PMC4757025 DOI: 10.1152/physiolgenomics.00054.2015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 10/08/2015] [Indexed: 12/22/2022] Open
Abstract
Lower muscle strength in midlife predicts disability and mortality in later life. Blood-borne factors, including growth differentiation factor 11 (GDF11), have been linked to muscle regeneration in animal models. We aimed to identify gene transcripts associated with muscle strength in adults. Meta-analysis of whole blood gene expression (overall 17,534 unique genes measured by microarray) and hand-grip strength in four independent cohorts (n = 7,781, ages: 20-104 yr, weighted mean = 56), adjusted for age, sex, height, weight, and leukocyte subtypes. Separate analyses were performed in subsets (older/younger than 60, men/women). Expression levels of 221 genes were associated with strength after adjustment for cofactors and for multiple statistical testing, including ALAS2 (rate-limiting enzyme in heme synthesis), PRF1 (perforin, a cytotoxic protein associated with inflammation), IGF1R, and IGF2BP2 (both insulin like growth factor related). We identified statistical enrichment for hemoglobin biosynthesis, innate immune activation, and the stress response. Ten genes were associated only in younger individuals, four in men only and one in women only. For example, PIK3R2 (a negative regulator of PI3K/AKT growth pathway) was negatively associated with muscle strength in younger (<60 yr) individuals but not older (≥ 60 yr). We also show that 115 genes (52%) have not previously been linked to muscle in NCBI PubMed abstracts. This first large-scale transcriptome study of muscle strength in human adults confirmed associations with known pathways and provides new evidence for over half of the genes identified. There may be age- and sex-specific gene expression signatures in blood for muscle strength.
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Yang JX, Guo QJ, Yang J, Zhou XY, Ren HY, Zhang HZ, Xu RX, Wang XD, Peters M, Zhu GX, Wei RF, Tian LY, Han XK. Red mud (RM)-Induced enhancement of iron plaque formation reduces arsenic and metal accumulation in two wetland plant species. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2016; 18:269-277. [PMID: 26505322 DOI: 10.1080/15226514.2015.1085830] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Human activities have resulted in arsenic (As) and heavy metals accumulation in paddy soils in China. Phytoremediation has been suggested as an effective and low-cost method to clean up contaminated soils. A combined soil-sand pot experiment was conducted to investigate the influence of red mud (RM) supply on iron plaque formation and As and heavy metal accumulation in two wetland plant species (Cyperus alternifolius Rottb., Echinodorus amazonicus Rataj), using As and heavy metals polluted paddy soil combined with three rates of RM application (0, 2%, 5%). The results showed that RM supply significantly decreased As and heavy metals accumulation in shoots of the two plants due to the decrease of As and heavy metal availability and the enhancement of the formation of iron plaque on the root surface and in the rhizosphere. Both wetland plants supplied with RM tended to have more Fe plaque, higher As and heavy metals on roots and in their rhizospheres, and were more tolerant of As and heavy metal toxicity. The results suggest that RM-induced enhancement of the formation of iron plaque on the root surface and in the rhizosphere of wetland plants may be significant for remediation of soils contaminated with As and heavy metals.
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Teunkens A, Cootjans K, Vermeulen K, Peters M, Van de Velde M, Rex S. Intraoperative administered tramadol reduces the need for piritramide in the immediate postoperative period in children undergoing adenotonsillectomy: A retrospective observational study. ACTA ANAESTHESIOLOGICA BELGICA 2016; 67:175-181. [PMID: 29873987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
PURPOSE Adenotonsillectomy is a frequently performed procedure in pediatric day-case surgery causing significant pain for which adequate analgesia is required. Our aim was to investigate if the intraoperative administration of IV tramadol decreases the need for postoperative pain medication in children. Because tramadol has well-known pro-emetic effects, we also assessed the incidence of postoperative nausea and vomiting (PONV). METHODS We performed a retrospective observational study in 314 children aged 1-13 years undergoing elective adenotonsillectomy. We identified 160 children who had received standard pain medication consisting of IV paracetamol and ketorolac and compared them with a group of 154 children who had received in addition a perioperative infusion of tramadol. RESULTS 32.5% of the patients in the tramadol group versus 83.8% of the patients in the standard group required postoperative administration of piritramide (p < 0.0001). Groups did not differ with respect to the postoperative need for anti-emetics but in the tramadol group more patients had received prophylactic therapy with odansetron or dexamethasone (P < 0.0001). CONCLUSION The results of this retrospective study indicate that intraoperative tramadol administration in combination with prophylactic antiemetic therapy decreases the need for piritramide in the immediate postoperative period without increasing the incidence of PONV after tonsillectomy in children.
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Spicer J, Tischer B, Peters M. P176 Epidermal Growth Factor Receptor (EGFR) Mutation Testing and Treatment Choice in Advanced Non-small Cell Lung Cancer (NSCLC): UK Findings from a Global Survey. Thorax 2015. [DOI: 10.1136/thoraxjnl-2015-207770.313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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164
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Lock J, de Bekker-Grob EW, Urhan G, Peters M, Meijer K, Brons P, van der Meer FJM, Driessens MHE, Collins PW, Fijnvandraat K, Leebeek FWG, Cnossen MH. Facilitating the implementation of pharmacokinetic-guided dosing of prophylaxis in haemophilia care by discrete choice experiment. Haemophilia 2015; 22:e1-e10. [DOI: 10.1111/hae.12851] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/20/2015] [Indexed: 01/31/2023]
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165
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Peters M. Using Communication to Reduce Expenditures in Radiation Oncology and Imaging Services. RADIOLOGY MANAGEMENT 2015; 37:9-12. [PMID: 26710569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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166
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Rudel TK, Paul B, White D, Rao IM, Van Der Hoek R, Castro A, Boval M, Lerner A, Schneider L, Peters M. LivestockPlus: Forages, sustainable intensification, and food security in the tropics. AMBIO 2015; 44:685-93. [PMID: 26121947 PMCID: PMC4591233 DOI: 10.1007/s13280-015-0676-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 03/21/2015] [Accepted: 05/04/2015] [Indexed: 05/08/2023]
Abstract
The increased use of grain-based feed for livestock during the last two decades has contributed, along with other factors, to a rise in grain prices that has reduced human food security. This circumstance argues for feeding more forages to livestock, particularly in the tropics where many livestock are reared on small farms. Efforts to accomplish this end, referred to as the 'LivestockPlus' approach, intensify in sustainable ways the management of grasses, shrubs, trees, and animals. By decoupling the human food and livestock feed systems, these efforts would increase the resilience of the global food system. Effective LivestockPlus approaches take one of two forms: (1) simple improvements such as new forage varieties and animal management practices that spread from farmer to farmer by word of mouth, or (2) complex sets of new practices that integrate forage production more closely into farms' other agricultural activities and agro-ecologies.
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Limperg PF, Haverman L, Peters M, Grootenhuis MA. Psychosocial functioning of mothers of boys with haemophilia. Haemophilia 2015; 22:e57-60. [DOI: 10.1111/hae.12831] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/01/2015] [Indexed: 11/30/2022]
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168
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Herder V, van de Velde N, Højer Kristensen J, van Elk C, Peters M, Kilwinski J, Schares G, Siebert U, Wohlsein P. Fatal Disseminated Toxoplasma gondii Infection in a Captive Harbour Porpoise (Phocoena phocoena). J Comp Pathol 2015; 153:357-62. [PMID: 26381675 DOI: 10.1016/j.jcpa.2015.08.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 08/12/2015] [Accepted: 08/17/2015] [Indexed: 11/28/2022]
Abstract
A 7-year-old female harbour porpoise (Phocoena phocoena), born and held in captivity, suffered from reduced consciousness, imprecise and circling swimming movements and long phases of immobility over a period of 3 weeks. The animal died during treatment in a Danish open sea facility. Pathological examination revealed multifocal pyogranulomatous to necrotizing meningoencephalomyelitis, ganglioneuritis, plexus chorioiditis, myocarditis, hepatitis and adrenalitis with few intralesional protozoal tachyzoites and bradyzoites within cysts. Immunohistochemistry was positive for Toxoplasma gondii antigen within the lesions. Using polymerase chain reaction (PCR), the presence of T. gondii-specific genome fragments was confirmed. A multilocus PCR-restriction fragment length polymorphism analysis using nine unlinked marker regions (nSAG2, SAG3, BTUB, GRA6, c22-8, c29-2, L358, PK1 and Apico) resulted in the identification of T. gondii type II (variant Apico Type I), which is the T. gondii genotype dominating in Germany. This is the first description of disseminated fatal toxoplasmosis in a captive harbour porpoise that lived in an open sea basin. Surface water contaminated with toxoplasma oocysts is regarded as the most likely source of infection.
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Poort H, Peters M, Verhagen S, Verhoeven J, Van der Graaf W, Knoop H. 1564 No need for gate keeping by professionals: Cancer patients want to be informed about intervention studies targeting fatigue. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30654-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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170
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Frampton G, Ali S, Rosenzweig M, Chmielecki J, Bauer T, Akimov M, Peters M, Bufill J, Lee C, Ou I, Salgia R, Yelensky R, Morosini D, Ross J, Philip S, Miller V. 464 Comprehensive genomic profiling of advanced cancers identifies MET exon 14 alterations that are sensitive to MET inhibitors. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30298-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Hall T, Steiner R, Wright H, Wilmot B, Roullet J, Peters M, Harris M. B-43Lipid and Sterol Gene Sequence Variation in Autism and Correlates with Neurodevelopmental Status: A Pilot Study. Arch Clin Neuropsychol 2015. [DOI: 10.1093/arclin/acv047.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Hoffmann A, Metzger J, Wöhlke A, Peters M, Junginger J, Mischke R, Distl O, Hewicker-Trautwein M. Congenital Ichthyosis in 14 Great Dane Puppies With a New Presentation. Vet Pathol 2015; 53:614-20. [PMID: 26242581 DOI: 10.1177/0300985815595516] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The present study describes a generalized congenital skin condition in 14 Great Dane puppies. Macroscopically, all dogs showed generalized gray to yellow scaling and skin wrinkles on the head and all 4 extremities. Skin sections were histologically examined using hematoxylin and eosin, Heidenhain's Azan, and Sudan red III staining methods and by conducting the alcian blue/periodic acid Schiff (AB/PAS) reaction technique on sections. Furthermore, incubation with hyaluronidase was performed. Skin samples were ultrastructurally analyzed using transmission electron microscopy. All affected Great Dane puppies had epidermal and follicular orthokeratotic hyperkeratosis, enlarged keratohyaline granules, vacuolated keratinocytes, and accumulations of an eosinophilic and alcianophilic, lipid-rich material within dilated hair follicular lumina and the cytoplasm of sebocytes. The macroscopic, histopathologic, and ultrastructural skin changes in all 14 Great Dane puppies indicate a new variant of a primary disorder of cornification with congenital, non-epidermolytic, lamellar ichthyosiform appearance.
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van Buel EM, Patas K, Peters M, Bosker FJ, Eisel ULM, Klein HC. Immune and neurotrophin stimulation by electroconvulsive therapy: is some inflammation needed after all? Transl Psychiatry 2015; 5. [PMID: 26218851 PMCID: PMC5068722 DOI: 10.1038/tp.2015.100] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
A low-grade inflammatory response is commonly seen in the peripheral blood of major depressive disorder (MDD) patients, especially those with refractory and chronic disease courses. However, electroconvulsive therapy (ECT), the most drastic intervention reserved for these patients, is closely associated with an enhanced haematogenous as well as neuroinflammatory immune response, as evidenced by both human and animal studies. A related line of experimental evidence further shows that inflammatory stimulation reinforces neurotrophin expression and may even mediate dramatic neurogenic and antidepressant-like effects following exposure to chronic stress. The current review therefore attempts a synthesis of our knowledge on the neurotrophic and immunological aspects of ECT and other electrically based treatments in psychiatry. Perhaps contrary to contemporary views, we conclude that targeted potentiation, rather than suppression, of inflammatory responses may be of therapeutic relevance to chronically depressed patients or a subgroup thereof.
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Eckhardt CL, Loomans JI, van Velzen AS, Peters M, Mauser-Bunschoten EP, Schwaab R, Mazzucconi MG, Tagliaferri A, Siegmund B, Reitter-Pfoertner SE, van der Bom JG, Fijnvandraat K. Inhibitor development and mortality in non-severe hemophilia A. J Thromb Haemost 2015; 13:1217-25. [PMID: 25912309 DOI: 10.1111/jth.12990] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 03/24/2015] [Indexed: 11/30/2022]
Abstract
BACKGROUND The life expectancy of non-severe hemophilia A (HA) patients equals the life expectancy of the non-hemophilic population. However, data on the effect of inhibitor development on mortality and on hemophilia-related causes of death are scarce. The development of neutralizing factor VIII antibodies in non-severe HA patients may dramatically change their clinical outcome due to severe bleeding complications. OBJECTIVES We assessed the association between the occurrence of inhibitors and mortality in patients with non-severe HA. METHODS In this retrospective cohort study, clinical data and vital status were collected for 2709 non-severe HA patients (107 with inhibitors) who were treated between 1980 and 2011 in 34 European and Australian centers. Mortality rates for patients with and without inhibitors were compared. RESULTS During 64,200 patient-years of follow-up, 148 patients died (mortality rate, 2.30 per 1000 person-years; 95% confidence interval (CI), 1.96-2.70) at a median age of 64 years (interquartile range [IQR], 49-76). In 62 patients (42%) the cause of death was hemophilia related. Sixteen inhibitor patients died at a median age of 71 years (IQR, 60-81). In ten patients the inhibitor was present at time of death; seven of them died of severe bleeding complications. The all-cause mortality rate in inhibitor patients was > 5 times increased compared with that for those without inhibitors (age-adjusted mortality rate ratio, 5.6). CONCLUSION Inhibitor development in non-severe hemophilia is associated with increased mortality. High rates of hemophilia-related mortality in this study indicate that non-severe hemophilia is not mild at all and stress the importance of close follow-up for these patients.
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Scharmga A, Peters M, van den Bergh J, Loeffen D, van Rietbergen B, van Tubergen A, Weijers R, Geusens P. FRI0576 Cross-Sectional Evaluation of High-Resolution CT Imaging Compared to MRI and Conventional Radiography for the Detection of Erosions in Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Peters M, Scharmga A, van Tubergen A, van den Bergh J, Weijers R, Loeffen D, van Rietbergen B, Arts C, Geusens P. FRI0600 Quantification of Cortical Breaks Using High-Resolution Peripheral Quantitative Computed Tomography Imaging; A Case Control Study. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.1942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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177
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Heslinga S, Konings T, Kamp O, Peters M, Smulders Y, van der Horst-Bruinsma I, Nurmohamed M. SAT0266 Very High Prevalence of Cardiac Disease in Ankylosing Spondylitis Patients. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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178
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Ouellette DR, Moscoso EE, Corrales JP, Peters M. Sepsis outcomes in patients receiving statins prior to hospitalization for sepsis: comparison of in-hospital mortality rates between patients who received atorvastatin and those who received simvastatin. Ann Intensive Care 2015; 5:9. [PMID: 25992302 PMCID: PMC4430500 DOI: 10.1186/s13613-015-0049-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 04/18/2015] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND The purpose of this study is to compare the in-hospital mortality rates between septic patients receiving statins and those that did not prior to developing sepsis. We compared subgroups receiving atorvastatin and simvastatin because these two drugs differ in their pharmacologic properties. METHODS This study was a retrospective analysis of patients selected from an institutional data base of patients hospitalized with sepsis. The study patients were drawn from a data base of 1,961 hospitalized patients with sepsis and included patients who met selection criteria and who were studied for HMG-CoA reductase inhibitor (statin) use both prior to and during hospitalization. The in-hospital mortality rates of patients receiving statins and those that did not prior to developing sepsis were compared. In-hospital mortality rates of patient subgroups receiving atorvastatin and simvastatin were also compared. A multivariable analysis was conducted with in-hospital mortality as the outcome variable and with multiple risk factors to include atorvastatin and simvastatin use. RESULTS The mortality rate for 359 patients receiving statins prior to hospitalization for sepsis was not significantly different than that for 1,302 patients who did not receive pre-hospital statins (26.5% versus 30.4%, p > 0.05). The mortality rate for 92 patients who had received atorvastatin prior to hospitalization was significantly less than that of 253 patients who received simvastatin (18.5% versus 30.0%, p = 0.032). The use of atorvastatin prior to sepsis was independently associated with lower in-hospital mortality in a multivariable analysis of sepsis risk factors (p = 0.021, OR = 0.455). Patients who received atorvastatin prior to hospitalization for sepsis and had statins continued in hospital had a very low mortality rate that was significantly less than that of those patients who never received statins (15.7% versus 30.8%, p = 0.007). CONCLUSIONS Pre-hospital atorvastatin use was associated with improved in-hospital mortality in septic patients when compared with pre-hospital simvastatin use and was independently associated with an improved outcome when compared to other sepsis risk factors. The effect of statins in patients with sepsis may be different for individual statins.
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Schrijvers LH, Kars MC, Beijlevelt-van der Zande M, Peters M, Schuurmans MJ, Fischer K. Unravelling adherence to prophylaxis in haemophilia: a patients' perspective. Haemophilia 2015; 21:612-21. [PMID: 25858411 DOI: 10.1111/hae.12660] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/01/2015] [Indexed: 11/27/2022]
Abstract
Given the lifelong therapy in haemophilia patients, insight in non-adherence behaviour from a patient perspective is important to understand patients' difficulties with the following treatment recommendations. The aim of this study was to clarify the process underlying adherence (behaviour) to prophylactic treatment, from a patients' perspective. To develop a grounded theory, a qualitative study using individual in-depth interviews was performed to understand experiences, perceptions and beliefs concerning adherence to prophylaxis. From two Dutch treatment centres, 21 adults with haemophilia using prophylaxis were interviewed. Patients were asked how they experience their task to administer prophylaxis and how they adhere to this. The interviews were transcribed, coded and analysed in an iterative process, leading to the development of the grounded theory. Adherence was determined by the position of prophylaxis in life. The position of prophylaxis was determined by the perception of prophylaxis and the ability to exert prophylaxis. Patients' perception was influenced by two main factors: acceptance of haemophilia and feeling/fearing symptoms. The ability to exert prophylaxis was influenced by understanding haemophilia and prophylaxis and planning/infusion skills. The combination of different perceptions and skills led to four main positions of prophylaxis in life: (i) prophylaxis integrated in life, (ii) prophylaxis according to doctors' advice, struggling with irregular situations, (iii) prophylaxis is too much to handle, (iv) prophylaxis is a confrontation with illness. The adherence level gradually decreased from position 1 to 4. This information can be used to design tailored interventions to promote adherence.
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Gondim LFP, Meyer J, Peters M, Rezende-Gondim MM, Vrhovec MG, Pantchev N, Bauer C, Conraths FJ, Schares G. In vitro cultivation of Hammondia heydorni: Generation of tachyzoites, stage conversion into bradyzoites, and evaluation of serologic cross-reaction with Neospora caninum. Vet Parasitol 2015; 210:131-40. [PMID: 25887985 DOI: 10.1016/j.vetpar.2015.03.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 03/26/2015] [Accepted: 03/28/2015] [Indexed: 11/26/2022]
Abstract
Hammondia heydorni was in vitro isolated from oocysts shed by three dogs using a finite cell line from embryonal bovine heart (KH-R). The oocysts were purified and suspended in 2% potassium dichromate or 2% sulphuric acid for sporulation for 2-5 days at room temperature. The parasites were confirmed as H. heydorni by PCR using specific primers (JS4/JS5) and by negative reaction for Neospora caninum employing the primers Np6+/Np21+. H. heydorni sporulated oocysts (1 × 10(6)) from each dog were initially treated with sodium hypochlorite. For excystation of sporozoites, oocysts from one dog were lysed by ultrasound followed by incubation with 0.75% taurocholate. Excystation of sporozoites from the other two dogs was achieved by oocyst fragmentation with glass beads with no further chemical treatment. Tachyzoites were clearly seen in the cultures at three days post inoculation (dpi). Bradyzoite conversion and cyst formation were evaluated at different time points by using a polyclonal rabbit serum against a bradyzoite-specific antigen (anti-BAG1), and a rat monoclonal antibody (mAbCC2) against a cyst wall protein. Bradyzoites were firstly detected at 7 dpi. Between 18 and 21 dpi most of cultured parasites consisted of encysted bradyzoites. The H. heydorni cysts increased in size during cultivation and reached a length of up to 135 μm. The parasite was maintained in the bovine heart cells up to 4.5months. Sera from mice and sheep experimentally infected with H. heydorni oocysts reacted with H. heydorni by IFAT, but did not cross-react with N. caninum antigens using IFAT or immunoblot. These findings suggest that serological cross-reactivity between H. heydorni and N. caninum seems to be of minor importance.
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Peters M, Van der Voort van Zyp J, Moerland M, Hoekstra C, Westendorp H, Kattevilder R, Van de Pol S, Maenhout M, Van Vulpen M. OC-0136: Rectal dose constraints for total and focal salvage Iodine125 prostate brachytherapy. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)40134-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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182
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Spicer J, Tischer B, Peters M. EGFR Mutation Testing and Oncologist Treatment Choice in Advanced Nsclc: Global Trends and Differences. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv128.04] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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183
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Limperg PF, Peters M, Colland VT, van Ommen CH, Beijlevelt M, Grootenhuis MA, Haverman L. Reliability, validity and evaluation of the Haemophilia Coping and Perception Test. Haemophilia 2015; 21:e243-e246. [DOI: 10.1111/hae.12650] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/09/2015] [Indexed: 11/27/2022]
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184
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Stoof SCM, van Steenbergen HW, Zwagemaker A, Sanders YV, Cannegieter SC, Duvekot JJ, Leebeek FWG, Peters M, Kruip MJHA, Eikenboom J. Primary postpartum haemorrhage in women with von Willebrand disease or carriership of haemophilia despite specialised care: a retrospective survey. Haemophilia 2015; 21:505-12. [PMID: 25688733 DOI: 10.1111/hae.12635] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/08/2014] [Indexed: 11/29/2022]
Abstract
Pregnant women with bleeding disorders require specialised peripartum care to prevent postpartum haemorrhage (PPH). If third trimester coagulation factor levels are <0.50 IU mL(-1) , prophylactic treatment is indicated and administered according to international guidelines. However, optimal dose and duration are unknown and bleeding may still occur. The aim of this study was to investigate the outcome in women with von Willebrand disease (VWD) or haemophilia carriership treated according to current practice guidelines. From the period 2002-2011, 185 deliveries in 154 VWD women or haemophilia carriers were retrospectively included. Data on blood loss, bleeding disorder characteristics and obstetric risk factors were obtained. The outcome was primary PPH, defined as blood loss ≥500 mL within 24 h postpartum and severe PPH as blood loss ≥1000 mL. Primary PPH was observed in 62 deliveries (34%), 14 (8%) of which resulted in severe PPH. In 26 deliveries prophylactic treatment was administered due to factor levels below the 0.50 IU mL(-1) cut-off in the third trimester, 14 of which (54%) were complicated by PPH. We found an increased PPH risk in deliveries given prophylactic treatment compared with deliveries without (OR 2.7, 95% CI 1.2-6.3). In conclusion, PPH incidence was highest in deliveries with the lowest factor levels in the third trimester. Currently, delivery outcome in women with bleeding disorders is unsatisfactory, given the high PPH incidence despite specialised care. Future studies are required to optimise management of deliveries in this patient population.
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185
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Gu F, Chodavarapu K, McCreary D, Plitt TA, Tamoria E, Ni M, Burnham JJ, Peters M, Lenhoff AM. Silica-based strong anion exchange media for protein purification. J Chromatogr A 2015; 1376:53-63. [DOI: 10.1016/j.chroma.2014.11.082] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Revised: 11/24/2014] [Accepted: 11/27/2014] [Indexed: 10/24/2022]
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186
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Timsit JF, Citerio G, Lavilloniere M, Perner A, Smith M, Ruckly S, Bassetti M, Bakker J, Benoit D, Curtis JR, Doig G, Herridge M, Jaber S, Papazian L, Peters M, Singer P, Soares M, Torres A, Viellard-Baron A, Azoulay E. DETERMINANTS OF DOWNLOADS AND CITATIONS FOR ARTICLES PUBLISHED IN INTENSIVE CARE MEDICINE. Intensive Care Med Exp 2015. [PMCID: PMC4796153 DOI: 10.1186/2197-425x-3-s1-a863] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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187
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Gandemer L, Peters M, Ferec S, Lelièvre B, Abbara C, Gégu C, Bretaudeau-Deguigne M, Boels D, Turcant A. Nouvelles drogues de synthèse (NDS) et dépistage urinaire : une bonne connaissance des réactifs s’impose. TOXICOLOGIE ANALYTIQUE ET CLINIQUE 2014. [DOI: 10.1016/j.toxac.2014.09.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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188
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Castel P, Juric D, Griffith M, Griffith O, Won H, Ainscough B, Ellis H, Ebbesen S, Gopakumar I, Quadt C, Peters M, Solit D, Lowe S, Mardis E, Berger M, Scaltriti M, Baselga J. 75 Loss of PTEN leads to acquired resistance to the PI3Ka inhibitor BYL719: a case of convergent evolution under selective therapeutic pressure. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)70201-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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189
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Sheeder J, Peters M, Richards M, Teal S. Does same-day initiation of subdermal implants increase the risk of luteal phase pregnancies? Contraception 2014. [DOI: 10.1016/j.contraception.2014.05.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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190
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Eckhardt CL, Astermark J, Nagelkerke SQ, Geissler J, Tanck MWT, Peters M, Fijnvandraat K, Kuijpers TW. The Fc gamma receptor IIa R131H polymorphism is associated with inhibitor development in severe hemophilia A. J Thromb Haemost 2014; 12:1294-301. [PMID: 24916518 DOI: 10.1111/jth.12631] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Accepted: 05/29/2014] [Indexed: 12/21/2022]
Abstract
BACKGROUND The development of factor (F) VIII neutralizing alloantibodies (inhibitors) is a major complication of treatment with FVIII concentrates in hemophilia A and the etiology is still poorly understood. The low-affinity Fc gamma receptors (FcγR), which are expressed on immune cells, provide an important link between cellular and humoral immunity by interacting with IgG subtypes. Genetic variations of the genes encoding FcγRs (FCGR genes) have been associated with susceptibility to infectious and autoimmune diseases. OBJECTIVES The aim of this study was to investigate the association between genetic variation of FCGR and inhibitor development in severe hemophilia A. PATIENTS/METHODS In this case-control study samples of 85 severe hemophilia A patients (siblings from 44 families) were included. Single nucleotide polymorphisms and copy number variation of the FCGR2 and FCGR3 gene cluster were studied in an FCGR-specific multiplex ligation-dependent probe amplification assay. Frequencies were compared in a generalized estimating equation regression model. RESULTS Thirty-six patients (42%) had a positive history of inhibitor development. The polymorphism 131R > H in the FCGR2A gene was associated with an increased risk of inhibitor development (odds ratio [OR] per H-allele, 1.8; 95% confidence interval [CI], 1.1-2.9). This association persisted in 29 patients with high titer inhibitors (OR per H-allele, 1.9; 95% CI, 1.2-3.2) and in 44 patients with the F8 intron 22 inversion (OR per H-allele, 2.6; 95% CI, 1.1-6.6). CONCLUSIONS Hemophilia A patients with the HH genotype of the FCGR2A polymorphism 131R > H have a more than 3-fold increased risk of inhibitor development compared with patients with the RR genotype.
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Seehusen F, Hahn K, Herder V, Weigand M, Habierski A, Gerhauser I, Wohlsein P, Peters M, Varela M, Palmarini M, Baumgärtner W. Skeletal Muscle Hypoplasia Represents the Only Significant Lesion in Peripheral Organs of Ruminants Infected with Schmallenberg Virus during Gestation. J Comp Pathol 2014; 151:148-52. [DOI: 10.1016/j.jcpa.2014.04.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 03/06/2014] [Accepted: 04/14/2014] [Indexed: 11/26/2022]
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192
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Eickmann B, Thorseth IH, Peters M, Strauss H, Bröcker M, Pedersen RB. Barite in hydrothermal environments as a recorder of subseafloor processes: a multiple-isotope study from the Loki's Castle vent field. GEOBIOLOGY 2014; 12:308-321. [PMID: 24725254 DOI: 10.1111/gbi.12086] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Accepted: 03/05/2014] [Indexed: 06/03/2023]
Abstract
Barite chimneys are known to form in hydrothermal systems where barium-enriched fluids generated by leaching of the oceanic basement are discharged and react with seawater sulfate. They also form at cold seeps along continental margins, where marine (or pelagic) barite in the sediments is remobilized because of subseafloor microbial sulfate reduction. We test the possibility of using multiple sulfur isotopes (δ34S, Δ33S, ∆36S) of barite to identify microbial sulfate reduction in a hydrothermal system. In addition to multiple sulfur isotopes, we present oxygen (δ18O) and strontium (87Sr/86Sr) isotopes for one of numerous barite chimneys in a low-temperature (~20 °C) venting area of the Loki's Castle black smoker field at the ultraslow-spreading Arctic Mid-Ocean Ridge (AMOR). The chemistry of the venting fluids in the barite field identifies a contribution of at least 10% of high-temperature black smoker fluid, which is corroborated by 87Sr/86 Sr ratios in the barite chimney that are less radiogenic than in seawater. In contrast, oxygen and multiple sulfur isotopes indicate that the fluid from which the barite precipitated contained residual sulfate that was affected by microbial sulfate reduction. A sulfate reduction zone at this site is further supported by the multiple sulfur isotopic composition of framboidal pyrite in the flow channel of the barite chimney and in the hydrothermal sediments in the barite field, as well as by low SO4 and elevated H2S concentrations in the venting fluids compared with conservative mixing values. We suggest that the mixing of ascending H2- and CH4-rich high-temperature fluids with percolating seawater fuels microbial sulfate reduction, which is subsequently recorded by barite formed at the seafloor in areas where the flow rate is sufficient. Thus, low-temperature precipitates in hydrothermal systems are promising sites to explore the interactions between the geosphere and biosphere in order to evaluate the microbial impact on these systems.
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Tschesche R, Scholten H, Peters M. Zur Biogenese von Steriod-Derivaten im Pflanzenreich. ACTA ACUST UNITED AC 2014. [DOI: 10.1515/znb-1969-1135] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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194
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Pohl S, Peters M, Haase D, Saak W. Bildung von Iodoantimonaten und -bismutaten. Kristallstrukturen von (PhCH2NEt3)4[Sb6I22], (PhCH2NEt3)4[Bi6I22] und (Ph4P)3[Bi5I18] / Formation of iodoantim onates and bismutates. crystal structures of (PhCH2NEt3)4[Sb6I22], (PhCH2NEt3)4[Bi6I22] and (Ph4P)3[Bi5I18]. ACTA ACUST UNITED AC 2014. [DOI: 10.1515/znb-1994-0604] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The formation and the crystal structures of the title compounds are reported. (PhCH2NEt3)4[Sb6l22] and (PhCH2NEt3)4[Bi6I22] are isotypic and contain a novel [E6I22]4- anion (E = Sb, Bi). The anion of (Ph4P)3[Bi5I18] consists of a linear chain of five face-sharing [Bil6] octahedra
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Scharmga A, van Tubergen A, van den Bergh J, de Jong J, Peters M, van Rietbergen B, Geusens P. SAT0165 Cortical Breaks and Bone Erosions in the Hand Joints: A Cadaver Study Comparing Conventional Radiography with High-Resolution and Micro-Computed Tomography. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.1851] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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196
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Van Den Oever I, Peters M, Lems W, Voskuyl A, van Schaardenburg D, Smulders Y, Boers M, Nurmohamed M. SAT0152 High Cardiovascular Risk in Patients with Rheumatoid Arthritis: is Screening Effective? Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.5440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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197
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Lock J, Raat H, Duncan N, Shapiro A, Beijlevelt M, Peters M, Tamminga RYJ, Leebeek FWG, Moll HA, Cnossen MH. Adherence to treatment in a Western European paediatric population with haemophilia: reliability and validity of the VERITAS-Pro scale. Haemophilia 2014; 20:616-23. [DOI: 10.1111/hae.12463] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/22/2014] [Indexed: 11/29/2022]
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198
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Terrault N, Reddy KR, Poordad F, Curry M, Schiano T, Johl J, Shaikh O, Dove L, Shetty K, Millis M, Schiff E, Regenstein F, Barnes D, Barin B, Peters M, Roland M, Stock P. Peginterferon and ribavirin for treatment of recurrent hepatitis C disease in HCV-HIV coinfected liver transplant recipients. Am J Transplant 2014; 14:1129-35. [PMID: 24636466 DOI: 10.1111/ajt.12668] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 11/13/2013] [Accepted: 12/11/2013] [Indexed: 01/25/2023]
Abstract
Achievement of a sustained virologic response (SVR) with antiviral therapy significantly improves graft survival in hepatitis C virus (HCV) monoinfected liver transplant (LT) patients. Risks and benefits of HCV therapy in HCV-human immunodeficiency virus (HIV) coinfected LT recipients are not well established. Among 89 HCV-HIV LT recipients in the HIVTR cohort, 39 (23% Black, 79% genotype 1, 83% fibrosis stage ≤ 1) were treated with peginterferon-a2a or a2b plus ribavirin for a median 363 days (14-1373). On intent-to-treat basis, 22% (95% CI: 10-39) and 14% (95% CI: 5-30) achieved an end-of-treatment response (EOTR) and SVR, respectively. By per-protocol analysis (completed 48 weeks of therapy ± dose reductions), 42% and 26% had EOTR and SVR, respectively. Severe adverse events occurred in 85%, with 26% hospitalized with infections and 13% developing acute rejection. Early discontinuations and dose reductions occurred in 38% and 82%, respectively, despite use of growth factors in 85%. Eighteen of 39 treated patients (46%) subsequently died/had graft loss, with 10 (26%) attributed to recurrent HCV. In conclusion, SVR rates are low and tolerability is poor in HCV-HIV coinfected transplant recipients treated with peginterferon and ribavirin. These results highlight the critical need for better tolerated and more efficacious HCV therapies for HCV-HIV coinfected transplant recipients.
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Lock J, Raat H, Peters M, Tamminga RYJ, Leebeek FWG, Moll HA, Cnossen MH. Reliability and validity of a novel Haemophilia-specific Self-Efficacy Scale. Haemophilia 2014; 20:e267-74. [DOI: 10.1111/hae.12435] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/09/2014] [Indexed: 11/30/2022]
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Richter A, Preussner L, Traska V, Peters M, Oysal A, Kaiser A, Assenmacher M. A novel automated process generates virus-specific T lymphocytes for immunotherapy that maintain their in vivo phenotype and functional competence. Cytotherapy 2014. [DOI: 10.1016/j.jcyt.2014.01.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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