21 results on '"Lucas, M"'
Search Results
2. Prediction of Bladder Outcomes after Traumatic Spinal Cord Injury: A Longitudinal Cohort Study.
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Pavese, Chiara, Schneider, Marc P., Schubert, Martin, Curt, Armin, Scivoletto, Giorgio, Finazzi-Agrò, Enrico, Mehnert, Ulrich, Maier, Doris, Abel, Rainer, Röhrich, Frank, Weidner, Norbert, Rupp, Rüdiger, Kessels, Alfons G., Bachmann, Lucas M., and Kessler, Thomas M.
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PREDICTION models ,SPINAL cord injuries ,BLADDER ,URINARY incontinence ,CLINICAL trials ,COMPARATIVE studies ,LONGITUDINAL method ,RESEARCH methodology ,MEDICAL cooperation ,NEUROGENIC bladder ,PHARMACOKINETICS ,RESEARCH ,LOGISTIC regression analysis ,EVALUATION research ,RECEIVER operating characteristic curves ,DISEASE complications ,DIAGNOSIS - Abstract
Background: Neurogenic bladder dysfunction represents one of the most common and devastating sequelae of traumatic spinal cord injury (SCI). As early prediction of bladder outcomes is essential to counsel patients and to plan neurourological management, we aimed to develop and validate a model to predict urinary continence and complete bladder emptying 1 y after traumatic SCI.Methods and Findings: Using multivariate logistic regression analysis from the data of 1,250 patients with traumatic SCI included in the European Multicenter Spinal Cord Injury study, we developed two prediction models of urinary continence and complete bladder emptying 1 y after traumatic SCI and performed an external validation in 111 patients. As predictors, we evaluated age, gender, and all variables of the International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI) and of the Spinal Cord Independence Measure (SCIM). Urinary continence and complete bladder emptying 1 y after SCI were assessed through item 6 of SCIM. The full model relies on lower extremity motor score (LEMS), light-touch sensation in the S3 dermatome of ISNCSI, and SCIM subscale respiration and sphincter management: the area under the receiver operating characteristics curve (aROC) was 0.936 (95% confidence interval [CI]: 0.922-0.951). The simplified model is based on LEMS only: the aROC was 0.912 (95% CI: 0.895-0.930). External validation of the full and simplified models confirmed the excellent predictive power: the aROCs were 0.965 (95% CI: 0.934-0.996) and 0.972 (95% CI 0.943-0.999), respectively. This study is limited by the substantial number of patients with a missing 1-y outcome and by differences between derivation and validation cohort.Conclusions: Our study provides two simple and reliable models to predict urinary continence and complete bladder emptying 1 y after traumatic SCI. Early prediction of bladder function might optimize counselling and patient-tailored rehabilitative interventions and improve patient stratification in future clinical trials. [ABSTRACT FROM AUTHOR]- Published
- 2016
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3. Freshwater and coastal migration patterns in the silver-stage eel Anguilla anguilla.
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Barry, J., Newton, M., Dodd, J. A., Lucas, M. C., Boylan, P., and Adams, C. E.
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ANGUILLA anguilla ,FRESHWATER fishes ,FISH migration ,FISH locomotion ,FISHES ,EFFECT of environment on fishes ,ACOUSTIC arrays ,FISH mortality - Abstract
The unimpeded downstream movement patterns and migration success of small female and male Anguilla anguilla through a catchment in north-west Europe were studied using an acoustic hydrophone array along the River Finn and into the Foyle Estuary in Ireland. Twenty silver-stage A. anguilla (total length, L
T , range: 332-520 mm) were trapped 152 km upstream from a coastal marine sea-lough outlet and internally tagged with acoustic transmitters of which 19 initiated downstream migration. Migration speed was highly influenced by river flow within the freshwater ( FW) compartment. Anguilla anguilla activity patterns were correlated with environmental influences; light, tidal direction and lunar phase all influenced the initiation of migration of tagged individuals. Migration speed varied significantly between upstream and lower river compartments. Individuals migrated at a slower speed in transitional water and sea-lough compartments compared with the FW compartment. While 88·5% survival was recorded during migration through the upper 121 km of the river and estuary, only 26% of A. anguilla which initiated downstream migration were detected at the outermost end of the acoustic array. Telemetry equipment functioned efficiently, including in the sea-lough, so this suggests high levels of mortality during sea-lough migration, or less likely, long-term sea-lough residence by silver A. anguilla emigrants. This has important implications for eel management plans. [ABSTRACT FROM AUTHOR]- Published
- 2016
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4. A comparison of intervention and conservative treatment for angulated fractures of the distal forearm in children (AFIC): study protocol for a randomized controlled trial.
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Adrian, Miriam, Wachtlin, Daniel, Kronfeld, Kai, Sommerfeldt, Dirk, and Wessel, Lucas M.
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AGE distribution ,COMPARATIVE studies ,EXPERIMENTAL design ,FRACTURE fixation ,BONE fractures ,HOSPITAL emergency services ,LONGITUDINAL method ,MEDICAL cooperation ,RESEARCH protocols ,ORTHOPEDIC implants ,PATIENT satisfaction ,RADIUS bone injuries ,RESEARCH ,STATISTICAL sampling ,TIME ,RANDOMIZED controlled trials ,TREATMENT effectiveness ,FRACTURE healing - Abstract
Background: Angulated fractures of the distal forearm are very frequent lesions in childhood. Currently, there are no standard guidelines on whether these children should be treated conservatively with a cast; with reduction and a cast; or with reduction, pinning and a cast under anesthesia. Minor prospective and retrospective studies have shown that the distal physis of the forearm possesses high remodeling capacity leading to reliable correction of malalignment. The aim of this trial is to answer the question about whether operative and conservative treatment show equivocal results.Methods/design: This is a prospective, multinational, multicenter, randomized, observer-blinded, actively controlled, parallel group trial, with 24 months of observation. The primary objective of this trial is to assess whether or not the long-term functional outcome in remodeling patients is inferior to patients receiving closed reduction and K-wire pinning. The trial should include 742 patients with acute fracture. The patients will be included in 30 medical centers in Germany, Switzerland and Austria. All patients 5 to 11 years of age presenting at the emergency department with an angulated distal fracture of the forearm will be randomized online after informed consent. The primary endpoint is the Cooney Score after 24 months. The secondary endpoint is the grade of radiological displacement at 12/24 months.Discussion: Therapy of angulated fractures is a matter of intensive debate. Primary manipulation and pinning under general anesthesia is recommended in order to avoid malalignment. No major study has proven the advantage of manipulation and pinning over immobilization alone. Should remodeling appear to be a safe alternative, manipulation under general anesthesia, K-wire pinning and removal of pins could be avoided, thus sparing significant costs.Trial Registration: DRKS00004874 , 30 October 2013. [ABSTRACT FROM AUTHOR]- Published
- 2015
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5. The future of lupin as a protein crop in Europe.
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Lucas, M. Mercedes, Stoddard, Frederick L., Annicchiarico, Paolo, Frías, Juana, Martínez-Villaluenga, Cristina, Sussmann, Daniela, Duranti, Marcello, Seger, Alice, Zander, Peter M., and Pueyo, José J.
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LUPINES ,LEGUME proteins ,AGRICULTURE - Abstract
Europe has become heavily dependent on soya bean imports, entailing trade agreements and quality standards that do not satisfy the European citizen's expectations. White, yellow, and narrow-leafed lupins are native European legumes that can become true alternatives to soya bean, given their elevated and high-quality protein content, potential health benefits, suitability for sustainable production, and acceptability to consumers. Nevertheless, lupin cultivation in Europe remains largely insufficient to guarantee a steady supply to the food industry, which in turn must innovate to produce attractive lupin-based protein-rich foods. Here, we address different aspects of the food supply chain that should be considered for lupin exploitation as a high-value protein source. Advanced breeding techniques are needed to provide new lupin varieties for socio-economically and environmentally sustainable cultivation. Novel processes should be optimized to obtain high-quality, safe lupin protein ingredients, and marketable foods need to be developed and offered to consumers. With such an integrated strategy, lupins can be established as an alternative protein crop, capable of promoting socio-economic growth and environmental benefits in Europe. [ABSTRACT FROM AUTHOR]
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- 2015
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6. Biogeography of Wood-Boring Crustaceans (Isopoda: Limnoriidae) Established in European Coastal Waters.
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Borges, Luísa M. S., Merckelbach, Lucas M., and Cragg, Simon M.
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WOOD borers , *LIMNORIA lignorum , *WOOD decay , *CRUSTACEA , *TERRITORIAL waters - Abstract
Marine wood-borers of the Limnoriidae cause great destruction to wooden structures exposed in the marine environment. In this study we collated occurrence data obtained from field surveys, spanning over a period of 10 years, and from an extensive literature review. We aimed to determine which wood-boring limnoriid species are established in European coastal waters; to map their past and recent distribution in Europe in order to infer species range extension or contraction; to determine species environmental requirements using climatic envelopes. Of the six species of wood-boring Limnoria previously reported occurring in Europe, only Limnoria lignorum, L. quadripunctata and L. tripunctata are established in European coastal waters. L. carinata and L. tuberculata have uncertain established status, whereas L. borealis is not established in European waters. The species with the widest distribution in Europe is Limnoria lignorum, which is also the most tolerant species to a range of salinities. L. quadripunctata and L. tripunctata appear to be stenohaline. However, the present study shows that both L. quadripunctata and L. tripunctata are more widespread in Europe than previous reports suggested. Both species have been found occurring in Europe since they were described, and their increased distribution is probably the results of a range expansion. On the other hand L. lignorum appears to be retreating poleward with ocean warming. In certain areas (e.g. southern England, and southern Portugal), limnoriids appear to be very abundant and their activity is rivalling that of teredinids. Therefore, it is important to monitor the distribution and destructive activity of these organisms in Europe. [ABSTRACT FROM AUTHOR]
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- 2014
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7. Diversity, environmental requirements, and biogeography of bivalve wood-borers (Teredinidae) in European coastal waters.
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Borges, Luísa M. S., Merckelbach, Lucas M., Sampaio, Íris, and Cragg, Simon M.
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SHIPWORMS , *OCEAN temperature , *SALINITY & the environment , *SYMPATRY (Ecology) , *ANIMAL ecology , *BIOLOGICAL evolution - Abstract
Background Bivalve teredinids inflict great destruction to wooden maritime structures. Yet no comprehensive study was ever carried out on these organisms in European coastal waters. Thus, the aims of this study were to: investigate the diversity of teredinids in European coastal waters; map their past and recent distributions to detect range expansion or contraction; determine salinity-temperature (S-T) requirements of species; flag, for future monitoring, the species that pose the greatest hazard for wooden structures Results A total of nine teredinid species were found established in European coastal waters. Seven were considered cryptogenic, of unknown origin, and two were considered alien species. Teredo navalis and Nototeredo norvagica were the species with the widest distribution in European waters. Recently, T. navalis has been reported occurring further east in the Baltic Sea but it was not found at a number of sites on the Atlantic coast of southern Europe. The Atlantic lineage of Lyrodus pedicellatus was the dominant teredinid in the southern Atlantic coast of Europe. In the Mediterranean six teredinid species occurred in sympatry, whereas only three of these occurred in the Black Sea. The species that pose the greatest hazard to wooden maritime structures in European coastal areas are T. navalis and the two lineages of L. pedicellatus. Conclusions Combined data from field surveys and from the literature made it possible to determine the diversity of established teredinid species and their past and recent distribution in Europe. The environmental requirements of species, determined using climatic envelopes, produced valuable information that assisted on the explanation of species distribution. In addition, the observed trends of species range extension or contraction in Teredo navalis and in the two lineages of Lyrodus pedicellatus seem to emphasise the importance of temperature and salinity as determinants of the distribution of teredinids, whereas their life history strategy seems to play an important role on competition. Teredo navalis and pedicellatus-like Lyrodus species should be monitored due to their destructive capability. The two alien species may expand further their distribution range in Europe, becoming invasive, and should also be monitored. [ABSTRACT FROM AUTHOR]
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- 2014
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8. Multi-isotope reconstruction of Late Pleistocene large-herbivore biogeography and mobility patterns in Central Europe.
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Heddell-Stevens P, Jöris O, Britton K, Matthies T, Lucas M, Scott E, Le Roux P, Meller H, and Roberts P
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- Animals, Fossils, Hominidae physiology, Strontium Isotopes analysis, Archaeology, Europe, Animal Migration, Dental Enamel chemistry, Diet, Germany, Oxygen Isotopes analysis, Herbivory, Carbon Isotopes analysis
- Abstract
Interpretations of Late Pleistocene hominin adaptative capacities by archaeologists have focused heavily on their exploitation of certain prey and documented contemporary behaviours for these species. However, we cannot assume that animal prey-taxa ecology and ethology were the same in the past as in the present, or were constant over archaeological timescales. Sequential isotope analysis of herbivore teeth has emerged as a particularly powerful method of directly reconstructing diet, ecology and mobility patterns on sub-annual scales. Here, we apply
87 Sr/86 Sr isotope analysis, in combination with δ18 O and δ13 C isotope analysis, to sequentially sampled tooth enamel of prevalent herbivore species that populated Europe during the Last Glacial Period, including Rangifer tarandus, Equus sp. and Mammuthus primigenius. Our samples come from two open-air archaeological sites in Central Germany, Königsaue and Breitenbach, associated with Middle Palaeolithic and early Upper Palaeolithic cultures, respectively. We identify potential inter- and intra-species differences in range size and movement through time, contextualised through insights into diet and the wider environment. However, homogeneous bioavailable87 Sr/86 Sr across large parts of the study region prevented the identification of specific migration routes. Finally, we discuss the possible influence of large-herbivore behaviour on hominin hunting decisions at the two sites., (© 2024. The Author(s).)- Published
- 2024
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9. Biomolecular evidence for changing millet reliance in Late Bronze Age central Germany.
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Orfanou E, Zach B, Rohrlach AB, Schneider FN, Paust E, Lucas M, Hermes T, Ilgner J, Scott E, Ettel P, Haak W, Spengler R, and Roberts P
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- Humans, Europe, Germany, Carbon Isotopes analysis, Millets, Archaeology
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The Bronze Age of Central Europe was a period of major social, economic, political and ideological change. The arrival of millet is often seen as part of wider Bronze Age connectivity, yet understanding of the subsistence regimes underpinning this dynamic period remains poor for this region, in large part due to a dominance of cremation funerary rites, which hinder biomolecular studies. Here, we apply stable isotope analysis, radiocarbon dating and archaeobotanical analysis to two Late Bronze Age (LBA) sites, Esperstedt and Kuckenburg, in central Germany, where human remains were inhumed rather than cremated. We find that people buried at these sites did not consume millet before the Middle Bronze Age (MBA) (ca. 1600 BCE). However, by the early LBA (ca. 1300-1050 BCE) people consumed millet, often in substantial quantities. This consumption appears to have subsequently diminished or ceased around 1050-800 BCE, despite charred millet grains still being found in the archaeological deposits from this period. The arrival of millet in this region, followed by a surge in consumption spanning two centuries, indicates a complex interplay of cultural and economic factors, as well as a potential use of millet to buffer changes in aridity in a region increasingly prone to crop failure in the face of climate change today., (© 2024. The Author(s).)
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- 2024
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10. Are birds more afraid in urban parks or cemeteries? A Latin American study contrasts with results from Europe.
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Morelli F, Leveau LM, Mikula P, MacGregor-Fors I, Bocelli ML, Quesada-Acuña SG, González-Lagos C, Gutiérrez-Tapia P, Dri GF, Delgado-V CA, Zavala AG, Campos J, Ortega-Álvarez R, Contreras-Rodríguez AI, López DS, Toledo MCB, Sarquis A, Giraudo A, Echevarria AL, Fanjul ME, Martínez MV, Haedo J, Sanz LGC, Dominguez YAP, Fernandez V, Marinero V, Abilhoa V, Amorin R, Fontana CS, da Silva TW, Vargas SSZ, Escobar Ibañez JF, Juri MD, Camín SR, Marone L, Piratelli AJ, Franchin AG, Crispim L, Benitez J, and Benedetti Y
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- Animals, Humans, Latin America, Phylogeny, Parks, Recreational, Bayes Theorem, Birds, Cities, Europe, Ecosystem, Cemeteries
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The escape behaviour, measured as flight initiation distance (FID; the distance at which individuals take flight when approached by a potential predator, usually a human in the study systems), is a measure widely used to study fearfulness and risk-taking in animals. Previous studies have shown significant differences in the escape behaviour of birds inhabiting cemeteries and urban parks in European cities, where birds seem to be shyer in the latter. We collected a regional dataset of the FID of birds inhabiting cemeteries and parks across Latin America in peri-urban, suburban and urban parks and cemeteries. FIDs were recorded for eighty-one bird species. Mean species-specific FIDs ranged from 1.9 to 19.7 m for species with at least two observations (fifty-seven species). Using Bayesian regression modelling and controlling for the phylogenetic relatedness of the FID among bird species and city and country, we found that, in contrast to a recent publication from Europe, birds escape earlier in cemeteries than parks in the studied Latin American cities. FIDs were also significantly shorter in urban areas than in peri-urban areas and in areas with higher human density. Our results indicate that some idiosyncratic patterns in animal fearfulness towards humans may emerge among different geographic regions, highlighting difficulties with scaling up and application of regional findings to other ecosystems and world regions. Such differences could be associated with intrinsic differences between the pool of bird species from temperate European and mostly tropical Latin American cities, characterized by different evolutionary histories, but also with differences in the historical process of urbanization., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier B.V. All rights reserved.)
- Published
- 2023
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11. ERNICA Consensus Conference on the Management of Patients with Esophageal Atresia and Tracheoesophageal Fistula: Follow-up and Framework.
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Dingemann C, Eaton S, Aksnes G, Bagolan P, Cross KM, De Coppi P, Fruithof J, Gamba P, Husby S, Koivusalo A, Rasmussen L, Sfeir R, Slater G, Svensson JF, Van der Zee DC, Wessel LM, Widenmann-Grolig A, Wijnen R, and Ure BM
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- Anastomosis, Surgical, Child, Consensus Development Conferences as Topic, Europe, Humans, Esophageal Atresia surgery, Tracheoesophageal Fistula surgery
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Introduction: Improvements in care of patients with esophageal atresia (EA) and tracheoesophageal fistula (TEF) have shifted the focus from mortality to morbidity and quality-of-life. Long-term follow-up is essential, but evidence is limited and standardized protocols are scarce. Nineteen representatives of the European Reference Network for Rare Inherited Congenital Anomalies (ERNICA) from nine European countries conducted a consensus conference on the surgical management of EA/TEF., Materials and Methods: The conference was prepared by item generation (including items of surgical relevance from the European Society for Pediatric Gastroenterology Hepatology and Nutrition (ESPGHAN)-The North American Society for Pediatric Gastroenterology, Hepatology and Nutrition (NASPGHAN) guidelines on follow-up after EA repair), item prioritization, formulation of a final list containing the domains Follow-up and Framework, and literature review. Anonymous voting was conducted via an internet-based system. Consensus was defined as ≥75% of those voting with scores of 6 to 9., Results: Twenty-five items were generated in the domain Follow-up of which 17 (68%) matched with corresponding ESPGHAN-NASPGHAN statements. Complete consensus (100%) was achieved on seven items (28%), such as the necessity of an interdisciplinary follow-up program. Consensus ≥75% was achieved on 18 items (72%), such as potential indications for fundoplication. There was an 82% concordance with the ESPGHAN-NASPGHAN recommendations. Four items were generated in the domain Framework, and complete consensus was achieved on all these items., Conclusion: Participants of the first ERNICA conference reached significant consensus on the follow-up of patients with EA/TEF who undergo primary anastomosis. Fundamental statements regarding centralization, multidisciplinary approach, and involvement of patient organizations were formulated. These consensus statements will provide the cornerstone for uniform treatment protocols and resultant optimized patient care., Competing Interests: None declared., (Thieme. All rights reserved.)
- Published
- 2020
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12. Paleolithic to Bronze Age Siberians Reveal Connections with First Americans and across Eurasia.
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Yu H, Spyrou MA, Karapetian M, Shnaider S, Radzevičiūtė R, Nägele K, Neumann GU, Penske S, Zech J, Lucas M, LeRoux P, Roberts P, Pavlenok G, Buzhilova A, Posth C, Jeong C, and Krause J
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- Asia, DNA, Ancient, Europe, History, Ancient, Humans, Siberia, Genome, Human genetics, Human Migration history, Racial Groups genetics, Racial Groups history
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Modern humans have inhabited the Lake Baikal region since the Upper Paleolithic, though the precise history of its peoples over this long time span is still largely unknown. Here, we report genome-wide data from 19 Upper Paleolithic to Early Bronze Age individuals from this Siberian region. An Upper Paleolithic genome shows a direct link with the First Americans by sharing the admixed ancestry that gave rise to all non-Arctic Native Americans. We also demonstrate the formation of Early Neolithic and Bronze Age Baikal populations as the result of prolonged admixture throughout the eighth to sixth millennium BP. Moreover, we detect genetic interactions with western Eurasian steppe populations and reconstruct Yersinia pestis genomes from two Early Bronze Age individuals without western Eurasian ancestry. Overall, our study demonstrates the most deeply divergent connection between Upper Paleolithic Siberians and the First Americans and reveals human and pathogen mobility across Eurasia during the Bronze Age., Competing Interests: Declaration of Interests The authors declare no competing interests., (Copyright © 2020 Elsevier Inc. All rights reserved.)
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- 2020
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13. The European Register of Cystic Echinococcosis, ERCE: state-of-the-art five years after its launch.
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Rossi P, Tamarozzi F, Galati F, Akhan O, Cretu CM, Vutova K, Siles-Lucas M, Brunetti E, and Casulli A
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- Animals, Databases, Factual, Echinococcosis diagnosis, Europe epidemiology, Female, Humans, Italy epidemiology, Liver parasitology, Lung parasitology, Male, Neglected Diseases diagnosis, Neglected Diseases epidemiology, Prevalence, Public Health, Registries, Echinococcosis epidemiology, Echinococcus
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Background: The real burden of human cystic echinococcosis (CE) remains elusive, due to the peculiar characteristics of the disease and the heterogeneous and incomplete data recording of clinical cases. Furthermore, official notification systems do not collect pivotal clinical information, which would allow the comparison of different treatment outcomes, and thus circumvent the difficulty of implementing clinical trials for CE. The Italian Register of CE (RIEC) was launched in 2012 and expanded in 2014 into the European Register of CE (ERCE). The primary aim of the ERCE was to highlight the magnitude of CE underreporting, through the recording of cases that were not captured by official records. We present an overview of data collated in the ERCE and discuss its future, five years after its inception., Methods: The ERCE database was explored on March 31st 2019; data concerning participating centres and registered cases were descriptively analysed., Results: Forty-four centres from 15 countries (7 non-European) were affiliated to the ERCE. Thirty-four centres (77%) registered at least one patient; of these, 18 (53%) recorded at least one visit within the past 18 months. A total of 2097 patients were registered, 19.9% of whom were immigrants. Cyst characteristics were reported for at least one cyst at least in one visit in 1643 (78.3%) patients, and cyst staging was used by 27 centres. In total, 3386 cysts were recorded at first registration; mostly located in the liver (75.5%). Data concerning clinical management could be analysed for 920 "cyst stage-location-management" observations, showing great heterogeneity in the implementation of the stage-specific management approach recommended by the WHO., Conclusions: The ERCE achieved its goal in showing that CE is a relevant but neglected public health problem in Europe and beyond, since a proportion of patients reaching medical attention are not captured by official notification systems. The ERCE may provide a valuable starting platform to complement hospital-derived data, to obtain a better picture of the epidemiology of clinical CE, and to collect clinical data for the issue of evidence-based recommendations. The ERCE will be expanded into the International Register of CE (IRCE) and restructured aiming to overcome its current criticalities and fulfil these aims.
- Published
- 2020
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14. Summarizing Patient Preferences for the Competitive Landscape of Multiple Sclerosis Treatment Options.
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Jonker MF, Donkers B, Goossens LMA, Hoefman RJ, Jabbarian LJ, de Bekker-Grob EW, Versteegh MM, Harty G, and Wong SL
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- Administration, Oral, Adolescent, Adult, Aged, Bayes Theorem, Cladribine administration & dosage, Europe, Female, Germany, Humans, Immunologic Factors administration & dosage, Immunosuppressive Agents administration & dosage, Injections, Interviews as Topic, Male, Middle Aged, Multiple Sclerosis, Relapsing-Remitting drug therapy, Natalizumab administration & dosage, Netherlands, United Kingdom, Young Adult, Decision Making, Multiple Sclerosis, Relapsing-Remitting psychology, Patient Preference psychology
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Objective. Quantitatively summarize patient preferences for European licensed relapsing-remitting multiple sclerosis (RRMS) disease-modifying treatment (DMT) options. Methods. To identify and summarize the most important RRMS DMT characteristics, a literature review, exploratory physician interviews, patient focus groups, and confirmatory physician interviews were conducted in Germany, the United Kingdom, and the Netherlands. A discrete choice experiment (DCE) was developed and executed to measure patient preferences for the most important DMT characteristics. The resulting DCE data ( n =799 and n =363 respondents in the United Kingdom and Germany, respectively) were analyzed using Bayesian mixed logit models. The estimated individual-level patient preferences were subsequently summarized using 3 additional analyses: the quality of the choice data was assessed using individual-level R
2 estimates, individual-level preferences for the available DMTs were aggregated into DMT-specific preference shares, and a principal component analysis was performed to explain the patients' choice process. Results. DMT usage differed between RRMS patients in Germany and the United Kingdom but aggregate patient preferences were similar. Across countries, 42% of all patients preferred oral medications, 38% infusions, 16% injections, and 4% no DMT. The most often preferred DMT was natalizumab (26%) and oral DMT cladribine tablets (22%). The least often preferred were mitoxantrone and the beta-interferon injections (1%-3%). Patient preferences were strongly correlated with patients' MS disease duration and DMT experience, and differences in patient preferences could be summarized using 8 principle components that together explain 99% of the variation in patients' DMT preferences. Conclusion. This study summarizes patient preferences for the included DMTs, facilitates shared decision making along the dimensions that are relevant to RRMS patients, and introduces methods in the medical DCE literature that are ideally suited to summarize the impact of DMT introductions in preexisting treatment landscapes.- Published
- 2020
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15. Mapping the clinical chronic obstructive pulmonary disease questionnaire onto generic preference-based EQ-5D values.
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Boland MR, van Boven JF, Kocks JW, van der Molen T, Goossens LM, Chavannes NH, and Rutten-van Mölken MP
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- Aged, Europe epidemiology, Female, Humans, Male, Middle Aged, Principal Component Analysis, Pulmonary Disease, Chronic Obstructive psychology, Pulmonary Disease, Chronic Obstructive therapy, Therapeutic Equivalency, Pulmonary Disease, Chronic Obstructive epidemiology, Quality-Adjusted Life Years, Surveys and Questionnaires standards
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Objectives: To develop a model to predict EuroQol five-dimensional questionnaire (EQ-5D) values from clinical chronic obstructive pulmonary disease (COPD) questionnaire (CCQ) scores., Methods: We used data from three clinical trials (the Randomized Clinical Trial on Effectiveness of Integrated COPD Management in Primary Care [RECODE], the Assessment Of Going Home Under Early Assisted Discharge [GO-AHEAD], and the Health Status Guided COPD Care [MARCH]). Data were randomly split into an estimation sample and a validation sample. The conceptual similarity between patient-reported CCQ and preference-based EQ-5D scores was assessed using correlation and principal-component analysis. Different types of models were estimated with increasing complexity. We selected the final models on the basis of mean absolute error and root mean square error when comparing predicted and observed values from the same population (internal validity) and from different trial populations (external validity). We also developed models for different country-specific EQ-5D value sets., Results: The principal-component analysis showed that the CCQ domains functional state and mental state are associated with four dimensions of the EQ-5D. The EQ-5D dimension pain/discomfort formed a separate construct on which no CCQ item loaded. The mean observed EQ-5D values were not significantly different from the mean predicted EQ-5D values in internal validation samples but did significantly differ in external validation samples. The models underestimated EQ-5D values in milder health states and overestimated them in more severe health states. The predictive ability of the models was similar across different EQ-5D value sets., Conclusions: The models can predict mean EQ-5D values that are similar to observed mean values in a similar population. The overestimating/underestimating of the low/high EQ-5D values, however, limits its use in Markov models. Therefore, mapping should be used cautiously., (Copyright © 2015 International Society for Pharmacoeconomics and Outcomes Research (ISPOR). Published by Elsevier Inc. All rights reserved.)
- Published
- 2015
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16. Confirmation and improvement of criteria for clinical phenotyping in common variable immunodeficiency disorders in replicate cohorts.
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Chapel H, Lucas M, Patel S, Lee M, Cunningham-Rundles C, Resnick E, Gerard L, and Oksenhendler E
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- Adult, Aged, Aged, 80 and over, Cohort Studies, Common Variable Immunodeficiency mortality, Common Variable Immunodeficiency physiopathology, Disease Progression, Europe, Follow-Up Studies, Humans, Middle Aged, Prognosis, Survival Analysis, United States, Young Adult, Common Variable Immunodeficiency diagnosis
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- 2012
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17. Adjusting for COPD severity in database research: developing and validating an algorithm.
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Goossens LM, Baker CL, Monz BU, Zou KH, and Rutten-van Mölken MP
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- Age Factors, Aged, Australia epidemiology, Body Mass Index, Europe epidemiology, Female, Health Resources statistics & numerical data, Humans, Logistic Models, Male, Middle Aged, Multicenter Studies as Topic, Multivariate Analysis, New Zealand epidemiology, Osteoporosis epidemiology, Predictive Value of Tests, Pulmonary Disease, Chronic Obstructive physiopathology, Pulmonary Disease, Chronic Obstructive therapy, Randomized Controlled Trials as Topic, Reproducibility of Results, Severity of Illness Index, Sex Factors, Smoking epidemiology, Treatment Outcome, United States epidemiology, Algorithms, Data Mining methods, Databases, Factual, Lung physiopathology, Models, Statistical, Pulmonary Disease, Chronic Obstructive diagnosis, Respiratory Function Tests
- Abstract
Purpose: When comparing chronic obstructive lung disease (COPD) interventions in database research, it is important to adjust for severity. Global Initiative for Chronic Obstructive Lung Disease (GOLD) guidelines grade severity according to lung function. Most databases lack data on lung function. Previous database research has approximated COPD severity using demographics and healthcare utilization. This study aims to derive an algorithm for COPD severity using baseline data from a large respiratory trial (UPLIFT)., Methods: Partial proportional odds logit models were developed for probabilities of being in GOLD stages II, III and IV. Concordance between predicted and observed stage was assessed using kappa-statistics. Models were estimated in a random selection of 2/3 of patients and validated in the remainder. The analysis was repeated in a subsample with a balanced distribution across severity stages. Univariate associations of COPD severity with the covariates were tested as well., Results: More severe COPD was associated with being male and younger, having quit smoking, lower BMI, osteoporosis, hospitalizations, using certain medications, and oxygen. After adjusting for these variables, co-morbidities, previous healthcare resource use (eg, emergency room, hospitalizations) and inhaled corticosteroids, xanthines, or mucolytics were no longer independently associated with COPD severity, although they were in univariate tests. The concordance was poor (kappa = 0.151) and only slightly better in the balanced sample (kappa = 0.215)., Conclusion: COPD severity cannot be reliably predicted from demographics and healthcare use. This limitation should be considered when interpreting findings from database studies, and additional research should explore other methods to account for COPD severity.
- Published
- 2011
- Full Text
- View/download PDF
18. Predicting the risk of hospital admission in older persons--validation of a brief self-administered questionnaire in three European countries.
- Author
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Wagner JT, Bachmann LM, Boult C, Harari D, von Renteln-Kruse W, Egger M, Beck JC, and Stuck AE
- Subjects
- Aged, Aged, 80 and over, Confidence Intervals, Europe, Female, Follow-Up Studies, Humans, Male, Prospective Studies, Reproducibility of Results, Risk Assessment methods, Time Factors, Geriatric Assessment, Health Status Indicators, Hospitals statistics & numerical data, Patient Admission statistics & numerical data, Surveys and Questionnaires
- Abstract
Objectives: To validate the Probability of Repeated Admission (Pra) questionnaire, a widely used self-administered tool for predicting future healthcare use in older persons, in three European healthcare systems., Design: Prospective study with 1-year follow-up., Setting: Hamburg, Germany; London, United Kingdom; Canton of Solothurn, Switzerland., Participants: Nine thousand seven hundred thirteen independently living community-dwelling people aged 65 and older., Measurements: Self-administered eight-item Pra questionnaire at baseline. Self-reported number of hospital admissions and physician visits during 1 year of follow-up., Results: In the combined sample, areas under the receiver operating characteristic curves (AUCs) were 0.64 (95% confidence interval (CI)=0.62-0.66) for the prediction of one or more hospital admissions and 0.68 (95% CI=0.66-0.69) for the prediction of more than six physician visits during the following year. AUCs were similar between sites. In comparison, prediction models based on a person's age and sex alone exhibited poor predictive validity (AUC
or= 0.5) were 2.3 times as likely (95% CI=2.1-2.6) as low-risk individuals to have a hospital admission, and 2.1 times as likely (95% CI=2.0-2.2) to have more than six physician visits., Conclusion: The Pra instrument exhibits good validity for predicting future health service use on a population level in different healthcare settings. Administrative data have shown similar predictive validity, but in practice, such data are often not available. The Pra is likely of high interest to governments and health insurance companies worldwide as a basis for programs aimed at health risk management in older persons. - Published
- 2006
- Full Text
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19. Mortality in systemic sclerosis: an international meta-analysis of individual patient data.
- Author
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Ioannidis JP, Vlachoyiannopoulos PG, Haidich AB, Medsger TA Jr, Lucas M, Michet CJ, Kuwana M, Yasuoka H, van den Hoogen F, Te Boome L, van Laar JM, Verbeet NL, Matucci-Cerinic M, Georgountzos A, and Moutsopoulos HM
- Subjects
- Adult, DNA Topoisomerases, Type I immunology, Databases, Factual, Esophageal Diseases mortality, Europe epidemiology, Female, Heart Diseases mortality, Humans, Japan epidemiology, Kidney Diseases mortality, Lung Diseases mortality, Male, Middle Aged, Multicenter Studies as Topic, Multivariate Analysis, Odds Ratio, Predictive Value of Tests, Risk Assessment, Risk Factors, Scleroderma, Systemic ethnology, Survival Rate, United States epidemiology, Scleroderma, Systemic mortality
- Abstract
Purpose: Studies on mortality associated with systemic sclerosis have been limited by small sample sizes. We aimed to obtain large-scale evidence on survival outcomes and predictors for this disease., Methods: We performed a meta-analysis of individual patient data from cohorts recruited from seven medical centers in the United States, Europe, and Japan, using standardized definitions for disease subtype and organ system involvement. The primary outcome was all-cause mortality. Standardized mortality ratios and predictors of mortality were estimated. The main analysis was based only on patients enrolled at each center within 6 months of diagnosis (incident cases)., Results: Among 1645 incident cases, 578 deaths occurred over 11,521 person-years of follow-up. Standardized mortality ratios varied by cohort (1.5 to 7.2). In multivariate analyses that adjusted for age and sex, renal (hazard ratio [HR] = 1.9; 95% confidence interval [CI]: 1.4 to 2.5), cardiac (HR = 2.8; 95% CI: 2.1 to 3.8), and pulmonary (HR = 1.6; 95% CI: 1.3 to 2.2) involvement, and anti-topoisomerase I antibodies (HR = 1.3; 95% CI: 1.0 to 1.6), increased mortality risk. Renal, cardiac, and pulmonary involvement tended to occur together (P <0.001). For patients without adverse predictors for 3 years after enrollment, the subsequent risk of death was not significantly different from that for the general population in three cohorts, but was significantly increased in three cohorts that comprised mostly referred patients. Analyses that included all cases in each center (n = 3311; total follow-up: 19,990 person-years) yielded largely similar results., Conclusion: Systemic sclerosis confers a high mortality risk, but there is considerable heterogeneity across settings. Internal organ involvement and anti-topoisomerase I antibodies are important determinants of mortality.
- Published
- 2005
- Full Text
- View/download PDF
20. [Data in favor of genetic heterogeneity of the hemochromatosis in the South of Europe].
- Author
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Pinel Julián LM, Ramírez Ortiz LM, and García De Lucas MD
- Subjects
- Adult, Aged, Europe, Female, Genetic Heterogeneity, Humans, Male, Middle Aged, Hemochromatosis genetics
- Published
- 2002
21. The potential organ donor pool: international figures.
- Author
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Miranda B, Fernández Lucas M, and Matesanz R
- Subjects
- Cause of Death, Cerebrovascular Disorders, Europe, Hospitals, Humans, International Cooperation, Spain, Tissue and Organ Procurement statistics & numerical data, Wounds and Injuries, Tissue Donors statistics & numerical data, Tissue Donors supply & distribution, Tissue and Organ Procurement organization & administration
- Abstract
By understanding the size and characteristics of the potential donor pool, the concentration and location of the potential donors and factors influencing low rates of donation, it is possible to identify opportunities to improve the organ donation system. The exact donor gap needs to be established for each hospital/area, as published figures do not necessary reflect local potential. Nevertheless, marked differences with respect to the minimum standards in the number, location, and characteristics of organ donors should be considered as suggestive of low performance. The first stage where potential donors are lost is the detection of people who can be diagnosed as brain dead and, hence, could be considered a potential organ donor. Improving the donor identification implies the development of donor detection programmes. That and other initiatives to improve the donation rate need to be started in hospitals after the assessment of the local potential and local factors specifically implicated in the local performance.
- Published
- 1997
- Full Text
- View/download PDF
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