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Berger S, Barnett N, Thakur S. Using Auto-Videosomnography to Study the Relation between Sleep and Nightwaking in Infancy. Sleep Med 2022. [DOI: 10.1016/j.sleep.2022.05.565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Berger S, Barnett N, Thakur S. Parents’ Values Shape Parenting Practices and Beliefs that Impact Infant Sleep. Sleep Med 2022. [DOI: 10.1016/j.sleep.2022.05.544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Berger S, Hinse P, Eschenburg S, Reubold T. Structural and functional characterization of altronate oxidoreductase from Escherichia coli. ACTA CRYSTALLOGRAPHICA SECTION A FOUNDATIONS AND ADVANCES 2022. [DOI: 10.1107/s2053273322093561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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Grootjans H, Verschuuren E, van Gemert A, Berger S, Kerstjens H, Droogh J, Gan T. Long-Term Renal Outcome in Patients Bridged on ICU for Lung Transplantation. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Joachim A, Cavalleri JMV, Berger S. [Equine anaplasmosis and equine piroplasmosis in Germany, Austria and Switzerland - previously anecdotal, now relevant?]. SCHWEIZ ARCH TIERH 2022; 164:35-50. [PMID: 34983738 DOI: 10.17236/sat00335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
INTRODUCTION Equine granulocytic anaplasmosis (EGA) and equine piroplasmosis (EP) are triggered by tick-borne pathogens - the intracellular bacterium Anaplasma phagocytophilum and the intracellular protozoa Babesia caballi and Theileria equi. These pathogens attack cells in the blood stream and cause similar clinical symptoms and changes in laboratory values. Although the treatment principles are naturally different, similarities in prophylaxis exists due to the transmission route. Tick transmitted pathogens can play a greater role in equine medicine in the future due to various factors, such as the tendency of relevant tick species to spread, but also the increasing import and travel activities of and with pets (both in the context of sporting events and as a leisure activity). While EGA is endemic in Central Europe, EP is a sporadic disease in Switzerland, Austria and Germany. However, EP must be viewed as underdiagnosed, as horses persistently infected with T. equi are also repeatedly detected in Central Europe. These diseases should be considered in horses with a fever and corresponding laboratory changes. Available diagnostic tests are direct pathogen detection by blood smear or PCR, and, indirect antibody detection, which is considered to be highly sensitive and (as a competitive ELISA) also very specific. Acute infections can be detected with PCR, serology is more suitable for chronic infections. A pathogen-free condition after treatment can be demonstrated with decreasing antibody titers in combination with repeated PCR tests. In addition, clinically healthy horses infected with T. equi should be identified by antibody detection and appropriate preventative transmission measures must be initiated. The prophylaxis of tick bites in horses is difficult due to the high exposure, and long-term tick bite prevention can hardly be guaranteed. Monitoring of tick activity and strict measures to prevent the spread of the pathogen within the tick population are therefore of great importance.
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Nilles EJ, Siddiqui SM, Fischinger S, Bartsch YC, de St. Aubin M, Zhou G, Gluck MJ, Berger S, Rhee J, Petersen E, Mormann B, Loesche M, Hu Y, Chen Z, Yu J, Gebre M, Atyeo C, Gorman MJ, Zhu AL, Burke J, Slein M, Hasdianda MA, Jambaulikar G, Boyer EW, Sabeti PC, Barouch DH, Julg B, Kucharski AJ, Musk ER, Lauffenburger DA, Alter G, Menon AS. Epidemiological and Immunological Features of Obesity and SARS-CoV-2. Viruses 2021; 13:2235. [PMID: 34835041 PMCID: PMC8624148 DOI: 10.3390/v13112235] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 10/29/2021] [Accepted: 11/02/2021] [Indexed: 12/15/2022] Open
Abstract
Obesity is a key correlate of severe SARS-CoV-2 outcomes while the role of obesity on risk of SARS-CoV-2 infection, symptom phenotype, and immune response remain poorly defined. We examined data from a prospective SARS-CoV-2 cohort study to address these questions. Serostatus, body mass index, demographics, comorbidities, and prior COVID-19 compatible symptoms were assessed at baseline and serostatus and symptoms monthly thereafter. SARS-CoV-2 immunoassays included an IgG ELISA targeting the spike RBD, multiarray Luminex targeting 20 viral antigens, pseudovirus neutralization, and T cell ELISPOT assays. Our results from a large prospective SARS-CoV-2 cohort study indicate symptom phenotype is strongly influenced by obesity among younger but not older age groups; we did not identify evidence to suggest obese individuals are at higher risk of SARS-CoV-2 infection; and remarkably homogenous immune activity across BMI categories suggests immune protection across these groups may be similar.
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Berger S, Shaw DR, Berben T, Ouboter HT, In 't Zandt MH, Frank J, Reimann J, Jetten MSM, Welte CU. Current production by non-methanotrophic bacteria enriched from an anaerobic methane-oxidizing microbial community. Biofilm 2021; 3:100054. [PMID: 34308332 PMCID: PMC8258643 DOI: 10.1016/j.bioflm.2021.100054] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 04/12/2021] [Accepted: 05/19/2021] [Indexed: 12/21/2022] Open
Abstract
In recent years, the externalization of electrons as part of respiratory metabolic processes has been discovered in many different bacteria and some archaea. Microbial extracellular electron transfer (EET) plays an important role in many anoxic natural or engineered ecosystems. In this study, an anaerobic methane-converting microbial community was investigated with regard to its potential to perform EET. At this point, it is not well-known if or how EET confers a competitive advantage to certain species in methane-converting communities. EET was investigated in a two-chamber electrochemical system, sparged with methane and with an applied potential of +400 mV versus standard hydrogen electrode. A biofilm developed on the working electrode and stable low-density current was produced, confirming that EET indeed did occur. The appearance and presence of redox centers at −140 to −160 mV and at −230 mV in the biofilm was confirmed by cyclic voltammetry scans. Metagenomic analysis and fluorescence in situ hybridization of the biofilm showed that the anaerobic methanotroph ‘Candidatus Methanoperedens BLZ2’ was a significant member of the biofilm community, but its relative abundance did not increase compared to the inoculum. On the contrary, the relative abundance of other members of the microbial community significantly increased (up to 720-fold, 7.2% of mapped reads), placing these microorganisms among the dominant species in the bioanode community. This group included Zoogloea sp., Dechloromonas sp., two members of the Bacteroidetes phylum, and the spirochete Leptonema sp. Genes encoding proteins putatively involved in EET were identified in Zoogloea sp., Dechloromonas sp. and one member of the Bacteroidetes phylum. We suggest that instead of methane, alternative carbon sources such as acetate were the substrate for EET. Hence, EET in a methane-driven chemolithoautotrophic microbial community seems a complex process in which interactions within the microbial community are driving extracellular electron transfer to the electrode.
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Ducoli L, Agrawal S, Sibler E, Kouno T, Tacconi C, Hon C, Berger S, Müllhaupt D, He Y, Kim J, D’Addio M, Dieterich L, Carninci P, de Hoon M, Shin J, Detmar M. 152 LETR1 is a lymphatic endothelial-specific lncRNA governing cell proliferation and migration through KLF4 and SEMA3C. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Zehetner V, Lipnik K, Url A, de Heus P, Fröhlich W, Cavalleri JMV, Berger S. Pulmonary fibrosis in a donkey. PFERDEHEILKUNDE 2021. [DOI: 10.21836/pem20210505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Nilles EJ, Siddiqui SM, Fischinger S, Bartsch YC, de Saint Aubin M, Zhou G, Gluck MJ, Berger S, Rhee J, Petersen E, Mormann B, Loesche M, Chen Z, Yu J, Gebre M, Atyeo C, Gorman MJ, Lee Zhu A, Burke J, Slein M, Hasdianda MA, Jambaulikar G, Boyer E, Sabeti P, Barouch DH, Julg BD, Kucharski AJ, Musk ER, Lauffenburger DA, Alter G, Menon AS. Epidemiological and immunological features of obesity and SARS-CoV-2. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2020:2020.11.11.20229724. [PMID: 33200139 PMCID: PMC7668749 DOI: 10.1101/2020.11.11.20229724] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Obesity is a key correlate of severe SARS-CoV-2 outcomes while the role of obesity on risk of SARS-CoV-2 infection, symptom phenotype, and immune response are poorly defined. We examined data from a prospective SARS-CoV-2 cohort study to address these questions. Serostatus, body mass index, demographics, comorbidities, and prior COVID-19 compatible symptoms were assessed at baseline and serostatus and symptoms monthly thereafter. SARS-CoV-2 immunoassays included an IgG ELISA targeting the spike RBD, multiarray Luminex targeting 20 viral antigens, pseudovirus neutralization, and T cell ELISPOT assays. Our results from a large prospective SARS-CoV-2 cohort study indicate symptom phenotype is strongly influenced by obesity among younger but not older age groups; we did not identify evidence to suggest obese individuals are at higher risk of SARS-CoV-2 infection; and, remarkably homogenous immune activity across BMI categories suggests natural- and vaccine-induced protection may be similar across these groups.
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Scabia G, Cancello R, Dallanoce C, Berger S, Matera C, Dattilo A, Zulian A, Barone I, Ceccarini G, Santini F, De Amici M, Di Blasio AM, Maffei M. ICH3, a selective alpha7 nicotinic acetylcholine receptor agonist, modulates adipocyte inflammation associated with obesity. J Endocrinol Invest 2020; 43:983-993. [PMID: 31965518 DOI: 10.1007/s40618-020-01182-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 01/08/2020] [Indexed: 02/06/2023]
Abstract
PURPOSE The alpha7 nicotinic acetylcholine receptor (α7nAChR), involved in the modulation of inflammation and insulin sensitivity, is downregulated in white adipose tissue (WAT) of obese patients. This study aims to test the ability of a selective synthetic α7nAChR agonist, the spirocyclic Δ2-isoxazoline derivative (R)-(-)-ICH3 (ICH3), to counteract acute inflammation and obesity-associated modifications in WAT. METHODS We employed the LPS-septic shock murine model, human primary adipocytes and diet-induced obese (DIO) mice. Inflammatory factor expression was assessed by ELISA and quantitative real-time PCR. Flow cytometry was employed to define WAT inflammatory infiltrate. Insulin signaling was monitored by quantification of AKT phosphorylation. RESULTS In the septic shock model, ICH3 revealed antipyretic action and reduced the surge of circulating cytokines. In vitro, ICH3 stimulation (10 µM) preserved viability of human adipocytes, decreased IL-6 mRNA (P < 0.05) and blunted LPS-induced peak of TNFα (P < 0.05) and IL-6 (P < 0.01). Chronic administration of ICH3 to DIO mice was associated with lower numbers of CD8+ T cells (P < 0.05) and to changed WAT expression of inflammatory factors (Hp, P < 0.05; CD301/MGL1, P < 0.01; Arg-1, P < 0.05). As compared to untreated, ICH3 DIO mice exhibited improved insulin signaling in the skeletal muscle (P < 0.01) mirrored by an improved response to glucose load (ipGTT: P < 0.05 at 120 min). CONCLUSIONS We proved that ICH3 is an anti-inflammatory drug, able to reduce inflammatory cytokines in human adipocytes and to blunt the effects of obesity on WAT inflammatory profile, on glucose tolerance and on tissue insulin sensitivity.
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Kutschar P, Berger S, Brandauer A, Freywald N, Osterbrink J, Seidenspinner D, Gnass I. Nursing Education Intervention Effects on Pain Intensity of Nursing Home Residents with Different Levels of Cognitive Impairment: A Cluster-Randomized Controlled Trial. J Pain Res 2020; 13:633-648. [PMID: 32273749 PMCID: PMC7105359 DOI: 10.2147/jpr.s237056] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 03/07/2020] [Indexed: 11/23/2022] Open
Abstract
PURPOSE Pain management in nursing homes is challenging and pain prevalence remains high. The objective of this study was to improve the pain situation of nursing home residents following a nursing-related educational intervention within a cluster-randomized controlled trial (2016-2018). PARTICIPANTS Clusters were nursing homes from one nursing home operator in Bavaria, Germany. Nursing home residents who were permanently registered in the facilities, at least 60 years of age, and who themselves or their legal guardians provided informed consent were included. INTERVENTION In addition to the implementation of pain nurses and pain care assistants, staff of the intervention group received an educational intervention in pain management, containing classroom (quality circles) and web-based training for nurses. METHODS Based on the Mini-Mental State Examination (MMSE), residents were either interviewed (MMSE 10-30) using self-report instruments or observed (MMSE 0-9) by proxy assessment. The primary outcome in residents able to self-report was maximum pain intensity according to Brief Pain Inventory (BPI); in those not able to self-report treatment-relevant pain above cut-off (≥2) on the Pain Assessment in Advanced Dementia (PAINAD). RESULTS Out of 20 randomly selected clusters, 9 nursing homes from the control, and 6 nursing homes from the intervention group participated. Multilevel linear (n=347 residents, MMSE 10-30) and logistic regression (n=222 residents, MMSE 0-9) analyses were conducted. Maximum pain intensity was higher after intervention (B=1.32, p<0.01), decreased with a better quality of life (B=-0.07, p<0.001), and was lower when dementia diagnoses were present (B=-1.12, p<0.01). PAINAD scores before and after intervention did not differ significantly (OR=0.89, p=0.724), but chances to exhibit treatment-related pain were higher with decreasing MMSE (OR=0.94, p<0.05). CONCLUSION While no significant positive intervention effect was measured, findings suggest nurses' raised awareness towards pain management. Overall results indicate that large-scale educational interventions seem to be less effective in complex nursing home settings without also including specific individual-based intervention measures.
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Poitevin E, Nicolas M, Graveleau L, Richoz J, Andrey D, Monard F, Abrahamson A, Baillon A, Barrios J, Berger S, Berrocal R, Bos R, Brullebaut L, Caseiro C, Choo LF, Cole G, Daix G, Dekussche C, Dhillon GS, Fortineau A, Gaudin C, Gonzales MJ, Leal R, Mabiog RO, Noorlos T, Reba R, Senechal C. Improvement of AOAC Official Method 984.27 for the Determination of Nine Nutritional Elements in Food Products by Inductively Coupled Plasma-Atomic Emission Spectroscopy After Microwave Digestion: Single-Laboratory Validation and Ring Trial. J AOAC Int 2019. [DOI: 10.1093/jaoac/92.5.1484] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
A single-laboratory validation (SLV) and a ring trial (RT) were undertaken to determine nine nutritional elements in food products by inductively coupled plasma-atomic emission spectroscopy in order to improve and update AOAC Official Method 984.27. The improvements involved optimized microwave digestion, selected analytical lines, internal standardization, and ion buffering. Simultaneous determination of nine elements (calcium, copper, iron, potassium, magnesium, manganese, sodium, phosphorus, and zinc) was made in food products. Sample digestion was performed through wet digestion of food samples by microwave technology with either closed or open vessel systems. Validation was performed to characterize the method for selectivity, sensitivity, linearity, accuracy, precision, recovery, ruggedness, and uncertainty. The robustness and efficiency of this method was proved through a successful internal RT using experienced food industry laboratories. Performance characteristics are reported for 13 certified and in-house reference materials, populating the AOAC triangle food sectors, which fulfilled AOAC criteria and recommendations for accuracy (trueness, recovery, and z-scores) and precision (repeatability and reproducibility RSD and HorRat values) regarding SLV and RT. This multielemental method is cost-efficient, time-saving, accurate, and fit-for-purpose according to ISO 17025 Norm and AOAC acceptability criteria, and is proposed as an improved version of AOAC Official Method 984.27 for fortified food products, including infant formula.
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Krause A, Aries PM, Berger S, Fiehn C, Kellner H, Lorenz HM, Meier L, Müller GA, Müller-Ladner U, Schwarting A, Tony HP, Peters MA, Wendler J. Rituximab in routine care of severe active rheumatoid arthritis : A prospective, non-interventional study in Germany. Z Rheumatol 2019; 78:881-888. [PMID: 30276727 DOI: 10.1007/s00393-018-0552-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
OBJECTIVE To assess safety, effectiveness and onset of effect of rituximab (RTX) in routine clinical treatment of severe, active rheumatoid arthritis (RA). METHODS Prospective, multi-centre, non-interventional study in rheumatological outpatient clinics or private practices in Germany. RTX-naïve adult patients were to receive RTX according to marketing authorisation and at their physician's discretion. Also according to their physician's discretion, patients could receive a second cycle of RTX (re-treatment = treatment continuation). Major outcome was the change in Disease Activity Score based on 28-joints count and erythrocyte sedimentation rate (DAS28-ESR) over 24 weeks and during 6 months of re-treatment. RESULTS Overall, 1653 patients received at least one cycle RTX; 99.2% of these had received disease-modifying antirheumatic drugs (DMARD) pre-treatment and 75.5% anti-tumor necrosis factor(TNF)‑α pre-treatment. After a mean interval of 8.0 months, 820 patients received RTX re-treatment. Mean DAS28-ESR decreased from 5.3 at baseline to 3.8 after 24 weeks (-1.5 [95% confidence interval, CI: -1.6; -1.4]), and from 4.1 at start of cycle 2 to 3.5 at study end (change from baseline: -1.8 [95% CI: -2.0; -1.7]). Improvements in DAS28-ESR and Health Assessment Questionnaire (HAQ) score occurred mainly during the first 12 weeks of RTX treatment, with further DAS28-ESR improvement until week 24 or month 6 of re-treatment. Improvements in DAS28-ESR and EULAR responses were more pronounced in seropositive patients. RF was a predictor of DAS28-ESR change to study end. Safety analysis showed the established profile of RTX. CONCLUSION RTX was safe and effective in a real-life setting with rapid and sustained improvement in RA signs and symptoms.
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Fenaux H, Chassaing M, Berger S, Gantzer C, Bertrand I, Schvoerer E. Transmission of hepatitis E virus by water: An issue still pending in industrialized countries. WATER RESEARCH 2019; 151:144-157. [PMID: 30594083 DOI: 10.1016/j.watres.2018.12.014] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 12/05/2018] [Accepted: 12/07/2018] [Indexed: 06/09/2023]
Abstract
Hepatitis E virus (HEV) is an enteric virus divided into eight genotypes. Genotype 1 (G1) and G2 are specific to humans; G3, G4 and G7 are zoonotic genotypes infecting humans and animals. Transmission to humans through water has been demonstrated for G1 and G2, mainly in developing countries, but is only suspected for the zoonotic genotypes. Thus, the water-related HEV hazard may be due to human and animal faeces. The high HEV genetic variability allows considering the presence in wastewater of not only different genotypes, but also quasispecies adding even greater diversity. Moreover, recent studies have demonstrated that HEV particles may be either quasi-enveloped or non-enveloped, potentially implying differential viral behaviours in the environment. The presence of HEV has been demonstrated at the different stages of the water cycle all over the world, especially for HEV G3 in Europe and the USA. Concerning HEV survival in water, the virus does not have higher resistance to inactivating factors (heat, UV, chlorine, physical removal), compared to viral indicators (MS2 phage) or other highly resistant enteric viruses (Hepatitis A virus). But the studies did not take into account genetic (genogroups, quasispecies) or structural (quasi- or non-enveloped forms) HEV variability. Viral variability could indeed modify HEV persistence in water by influencing its interaction with the environment, its infectivity and its pathogenicity, and subsequently its transmission by water. The cell culture methods used to study HEV survival still have drawbacks (challenging virus cultivation, time consuming, lack of sensitivity). As explained in the present review, the issue of HEV transmission to humans through water is similar to that of other enteric viruses because of their similar or lower survival. HEV transmission to animals through water and how the virus variability affects its survival and transmission remain to be investigated.
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Hagelskamp L, Berger S, Villalobos M, Thomas M, Wensing M, Mahler C. Nurse navigators in thoracic oncology: A qualitative study of German nurses’ attitudes to nursing role expansion. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy276.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Meyre P, Blum S, Berger S, Aeschbacher S, Schoepfer H, Briel M, Niessner A, Osswald S, Conen D. P975Incidence and risk factors for all-cause hospitalizations in patients with atrial fibrillation: a systematic review and meta-analysis. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Fenaux H, Chassaing M, Berger S, Jeulin H, Gentilhomme A, Bensenane M, Bronowicki J, Gantzer C, Bertrand I, Schvoerer E. Molecular features of Hepatitis E Virus circulation in environmental and human samples. J Clin Virol 2018; 103:63-70. [DOI: 10.1016/j.jcv.2018.04.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 03/20/2018] [Accepted: 04/03/2018] [Indexed: 12/20/2022]
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Berger S, Pho H, Fleury Curado T, Schwartz A, Polotsky V. 0077 Intranasal Leptin Approach To Treat Sleep-disordered Breathing. Sleep 2018. [DOI: 10.1093/sleep/zsy061.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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PHO H, Berger S, Fleury Curado T, Schwartz AR, Polotsky VY. 0133 Leptin Signaling In Dorsal Medial Hypothalamus Regulates Upper Airway Patency And Reverses Sleep Disordered Breathing In Leptin-resistant Db/db Mice. Sleep 2018. [DOI: 10.1093/sleep/zsy061.132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Fleury Curado TA, Pho H, Berger S, Lee R, Sennes L, Schwartz AR, Polotsky VY. 0067 Chemogenetic Silencing of Hypoglossal Motor Neurons Creates a Model of Upper Airway Obstruction During Sleep. Sleep 2018. [DOI: 10.1093/sleep/zsy061.066] [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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Berger S, Gökeri C, Dietert K, Behrendt U, Lienau J, Gruber AD, Suttorp N, Witzenrath M, Nouailles G. Delay in Adequate Antiobiotic Therapy Results in Fatal Disease Outcome in a Mouse Model of CAP. Pneumologie 2018. [DOI: 10.1055/s-0037-1619425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Soulie C, Morand-Joubert L, Cottalorda J, Charpentier C, Bellecave P, Le Guen L, Yerly S, Montes B, Fafi-Kremer S, Dina J, Avettand-Fenoel V, Amiel C, Roussel C, Pallier C, Zafilaza K, Sayon S, Signori-Schmuck A, Mirand A, Trabaud MA, Berger S, Calvez V, Marcelin AG. Performance of genotypic algorithms for predicting tropism for HIV-1 CRF01_AE recombinant. J Clin Virol 2018; 99-100:57-60. [PMID: 29331843 DOI: 10.1016/j.jcv.2017.12.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Revised: 10/04/2017] [Accepted: 12/28/2017] [Indexed: 11/19/2022]
Abstract
OBJECTIVES There is no consensus about the performances of genotypic rules for predicting HIV-1 non-B subtype tropism. Three genotypic methods were compared for CRF01_AE HIV-1 tropism determination. METHODS The V3 env region of 207 HIV-1 CRF01_AE and 178 B subtypes from 17 centers in France and 1 center in Switzerland was sequenced. Tropism was determined by Geno2Pheno algorithm with false positive rate (FPR) 5% or 10%, the 11/25 rule or the combined criteria of the 11/25, net charge rule and NXT/S mutations. RESULTS Overall, 72.5%, 59.4%, 86.0%, 90.8% of the 207 HIV-1 CRF01_AE were R5-tropic viruses determined by Geno2pheno FPR5%, Geno2pheno FPR10%, the combined criteria and the 11/25 rule, respectively. A concordance of 82.6% was observed between Geno2pheno FPR5% and the combined criteria for CRF01_AE. The results were nearly similar for the comparison between Geno2pheno FPR5% and the 11/25 rule. More mismatches were observed when Geno2pheno was used with the FPR10%. Neither HIV viral load, nor current or nadir CD4 was associated with the discordance rate between the different algorithms. CONCLUSION Geno2pheno predicted more X4-tropic viruses for this set of CRF01_AE sequences than the combined criteria or the 11/25 rule alone. For a conservative approach, Geno2pheno FPR5% seems to be a good compromise to predict CRF01_AE tropism.
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Leutgeb R, Engeser P, Berger S, Szecsenyi J, Laux G. Erratum to: Out of hours care in Germany - High utilization by adult patients with minor ailments? BMC FAMILY PRACTICE 2017; 18:64. [PMID: 28499356 PMCID: PMC5429518 DOI: 10.1186/s12875-017-0632-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Drews R, Pattyn F, Hewitt IJ, Ng FSL, Berger S, Matsuoka K, Helm V, Bergeot N, Favier L, Neckel N. Actively evolving subglacial conduits and eskers initiate ice shelf channels at an Antarctic grounding line. Nat Commun 2017; 8:15228. [PMID: 28485400 PMCID: PMC5482720 DOI: 10.1038/ncomms15228] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 03/09/2017] [Indexed: 11/08/2022] Open
Abstract
Ice-shelf channels are long curvilinear tracts of thin ice found on Antarctic ice shelves. Many of them originate near the grounding line, but their formation mechanisms remain poorly understood. Here we use ice-penetrating radar data from Roi Baudouin Ice Shelf, East Antarctica, to infer that the morphology of several ice-shelf channels is seeded upstream of the grounding line by large basal obstacles indenting the ice from below. We interpret each obstacle as an esker ridge formed from sediments deposited by subglacial water conduits, and calculate that the eskers' size grows towards the grounding line where deposition rates are maximum. Relict features on the shelf indicate that these linked systems of subglacial conduits and ice-shelf channels have been changing over the past few centuries. Because ice-shelf channels are loci where intense melting occurs to thin an ice shelf, these findings expose a novel link between subglacial drainage, sedimentation and ice-shelf stability.
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