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Friedrich J, Wilbert M, Marino R. Nonlocal contributions to the turbulent cascade in magnetohydrodynamic plasmas. Phys Rev E 2024; 109:045208. [PMID: 38755856 DOI: 10.1103/physreve.109.045208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 03/13/2024] [Indexed: 05/18/2024]
Abstract
We present evidence for nonlocal contributions to the turbulent energy cascade in magnetohydrodynamic (MHD) plasmas. Therefore, we revisit a well-known result derived directly from the MHD equations, i.e., the Politano and Pouquet law for the transfer of kinetic and magnetic energy in scale. We propose adding a term that accounts for nonlocal transfer and represents the influence of fluctuations from large scales due to the Alfvén effect. Supported by direct numerical simulations of homogeneous and isotropic MHD turbulence, we verify that in some plasma configurations, neglecting the additional nonlocal term might consistently overestimate energy dissipation rates and, thus, the contributions of turbulent energy dissipation potentially affecting solar wind heating, i.e., a central puzzle in space plasma physics that motivates the present work.
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Affiliation(s)
- J Friedrich
- ForWind, Institute of Physics, University of Oldenburg, Küpkersweg 70, D-26129 Oldenburg, Germany
| | - M Wilbert
- Institut für Theoretische Physik I, Ruhr-Universität Bochum, Universitätsstraße 150, 44780 Bochum, Germany
| | - R Marino
- CNRS, École Centrale de Lyon, INSA de Lyon, Université Claude Bernard Lyon 1, Laboratoire de Mécanique des Fluides et d'Acoustique - UMR 5509, F-69134 Ecully, France
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Friedrich J, Bailey RI, Talenti A, Chaudhry U, Ali Q, Obishakin EF, Ezeasor C, Powell J, Hanotte O, Tijjani A, Marshall K, Prendergast J, Wiener P. Mapping restricted introgression across the genomes of admixed indigenous African cattle breeds. Genet Sel Evol 2023; 55:91. [PMID: 38097935 PMCID: PMC10722721 DOI: 10.1186/s12711-023-00861-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 11/24/2023] [Indexed: 12/17/2023] Open
Abstract
BACKGROUND The genomes of indigenous African cattle are composed of components with Middle Eastern (taurine) and South Asian (indicine) origins, providing a valuable model to study hybridization and to identify genetic barriers to gene flow. In this study, we analysed indigenous African cattle breeds as models of hybrid zones, considering taurine and indicine samples as ancestors. In a genomic cline analysis of whole-genome sequence data, we considered over 8 million variants from 144 animals, which allows for fine-mapping of potential genomic incompatibilities at high resolution across the genome. RESULTS We identified several thousand variants that had significantly steep clines ('SCV') across the whole genome, indicating restricted introgression. Some of the SCV were clustered into extended regions, with the longest on chromosome 7, spanning 725 kb and including 27 genes. We found that variants with a high phenotypic impact (e.g. indels, intra-genic and missense variants) likely represent greater genetic barriers to gene flow. Furthermore, our findings provide evidence that a large proportion of breed differentiation in African cattle could be linked to genomic incompatibilities and reproductive isolation. Functional evaluation of genes with SCV suggest that mitonuclear incompatibilities and genes associated with fitness (e.g. resistance to paratuberculosis) could account for restricted gene flow in indigenous African cattle. CONCLUSIONS To our knowledge, this is the first time genomic cline analysis has been applied to identify restricted introgression in the genomes of indigenous African cattle and the results provide extended insights into mechanisms (e.g. genomic incompatibilities) contributing to hybrid differentiation. These results have important implications for our understanding of genetic incompatibilities and reproductive isolation and provide important insights into the impact of cross-breeding cattle with the aim of producing offspring that are both hardy and productive.
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Affiliation(s)
- Juliane Friedrich
- Division of Genetics and Genomics, The Roslin Institute and Royal (Dick), School of Veterinary Studies, University of Edinburgh, Midlothian, UK.
| | - Richard I Bailey
- Department of Ecology and Vertebrate Zoology, University of Łódź, Łódź, Poland
| | - Andrea Talenti
- Division of Genetics and Genomics, The Roslin Institute and Royal (Dick), School of Veterinary Studies, University of Edinburgh, Midlothian, UK
| | - Umer Chaudhry
- School of Veterinary Medicine, St. George's University, St. George's, Caribbean, Grenada
| | - Qasim Ali
- Department of Parasitology, The University of Agriculture Dera Ismail Khan, Khyber Pakhtunkhwa, Pakistan
| | - Emmanuel F Obishakin
- Biotechnology Division, National Veterinary Research Institute, Vom, Plateau State, Nigeria
| | - Chukwunonso Ezeasor
- Department of Veterinary Pathology and Microbiology, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Jessica Powell
- Division of Infection and Immunity, The Roslin Institute and Royal (Dick), School of Veterinary Studies, University of Edinburgh, Midlothian, UK
| | - Olivier Hanotte
- International Livestock Research Institute (ILRI), Addis Ababa, Ethiopia
- School of Life Sciences, University of Nottingham, Nottingham, UK
- Centre for Tropical Livestock Genetics and Health (CTLGH), The Roslin Institute, University of Edinburgh, Midlothian, UK
| | | | - Karen Marshall
- Centre for Tropical Livestock Genetics and Health (CTLGH), ILRI Kenya, Nairobi, Kenya
| | - James Prendergast
- Division of Genetics and Genomics, The Roslin Institute and Royal (Dick), School of Veterinary Studies, University of Edinburgh, Midlothian, UK
| | - Pamela Wiener
- Division of Genetics and Genomics, The Roslin Institute and Royal (Dick), School of Veterinary Studies, University of Edinburgh, Midlothian, UK.
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Ghiani M, Hagemann C, Friedrich J, Maywald U, Wilke T, von Eiff C, Malerczyk C. Can risk area designation help increase vaccination coverage for Tick-Borne Encephalitis? Evidence from German claims data. Vaccine 2022; 40:7335-7342. [PMID: 36347722 DOI: 10.1016/j.vaccine.2022.10.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 10/14/2022] [Accepted: 10/26/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND OBJECTIVES Although vaccine preventable, the incidence of tick-borne encephalitis (TBE) increased in Germany from 2001 to 2021 by on average 2% each year, with a peak of more than 700 TBE infections documented in 2020. TBE-risk areas, as designated by district based on incidence of human cases, expanded north- and northeastward, present in 11 of the 16 Federal States as of 2022. Using claims data from a German statutory health insurance in the Federal States of Saxony and Thuringia (AOK PLUS), we aimed to assess whether official assignment of a district to a risk area had an impact on vaccination rates in Germany. METHODS The data covered the period from 01/01/2010 to 31/12/2018 and included information on vaccine administrations from outpatient physicians. Yearly incident vaccination rates were reported overall and by district. To investigate the association between a new designation of an incident TBE-risk area and vaccination rates, a difference-in-difference analysis was conducted. RESULTS Overall, the incident vaccination rates increased from 6.2 to 9.5 per 1,000 person-years between 2012 and 2018, with a peak of 12.2 in 2015. While districts that had been risk-areas for the whole study period had always a higher vaccination rate compared to districts that were never categorized as risk areas, the increase between 2012 and 2018 was comparable in the two groups (3.0 and 3.2 per 1,000 person-years, respectively). In contrast, districts that were newly designated risk districts during the study period experienced a significantly larger increase in vaccination rates, going from 5.8 to 14.7 per 1,000 person-years between 2012 and 2018, with a peak of 19.6 in 2015. CONCLUSION The results suggest that the new designation of a district as risk area has a significant positive impact on vaccination rates, which is strongest immediately after designation of risk area.
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Affiliation(s)
- M Ghiani
- IPAM e.V, Alter Holzhafen 19, 23966 Wismar, Germany.
| | - C Hagemann
- Pfizer Pharma GmbH, Linkstr. 10, 10785 Berlin, Germany
| | - J Friedrich
- Pfizer Pharma GmbH, Linkstr. 10, 10785 Berlin, Germany
| | | | - T Wilke
- Ingress-Health HWM GmbH, Wismar, Germany
| | - C von Eiff
- Pfizer Pharma GmbH, Linkstr. 10, 10785 Berlin, Germany
| | - C Malerczyk
- Pfizer Pharma GmbH, Linkstr. 10, 10785 Berlin, Germany
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Logemann A, Reininghaus M, Schmidt M, Ebeling A, Zimmermann T, Wolschke H, Friedrich J, Brockmeyer B, Pröfrock D, Witt G. Assessing the chemical anthropocene - Development of the legacy pollution fingerprint in the North Sea during the last century. Environ Pollut 2022; 302:119040. [PMID: 35202763 DOI: 10.1016/j.envpol.2022.119040] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 02/15/2022] [Accepted: 02/18/2022] [Indexed: 06/14/2023]
Abstract
The North Sea and its coastal zones are heavily impacted by anthropogenic activities, which has resulted in significant chemical pollution ever since the beginning of the industrialization in Europe during the 19th century. In order to assess the chemical Anthropocene, natural archives, such as sediment cores, can serve as a valuable data source to reconstruct historical emission trends and to verify the effectiveness of changing environmental legislation. In this study, we investigated 90 contaminants covering inorganic and organic pollutant groups analyzed in a set of sediment cores taken in the North Seas' main sedimentation area (Skagerrak). We thereby develop a chemical pollution fingerprint that records the constant input of pollutants over time and illustrates their continued great relevance for the present. Additionally, samples were radiometrically dated and PAH and PCB levels in porewater were determined using equilibrium passive sampling. Furthermore, we elucidated the origin of lead (Pb) contamination utilizing non-traditional stable isotopic analysis. Our results reveal three main findings: 1. for all organic contaminant groups covered (PAHs, OCPs, PCBs, PBDEs and PFASs) as well as the elements lead (Pb) and titanium (Ti), determined concentrations decreased towards more recent deposited sediment. These decreasing trends could be linked to the time of introductions of restrictions and bans and therefor our results confirm, amongst possible other factors, the effectiveness of environmental legislation by revealing a successive change in contamination levels over the decades. 2. concentration trends for ΣPAH and ΣPCB measured in porewater correspond well with the ones found in sediment which suggests that this method can be a useful expansion to traditional bulk sediment analysis to determine the biologically available pollutant fraction. 3. Arsenic (As) concentrations were higher in younger sediment layers, potentially caused by emissions of corroded warfare material disposed in the study area after WW II.
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Affiliation(s)
- A Logemann
- Federal Maritime and Hydrographic Agency (BSH), Bernhard-Nocht-Str. 78, 20359, Hamburg, Germany; Universität Hamburg, Department of Earth Sciences, Bundesstraße 55, 20146, Hamburg, Germany
| | - M Reininghaus
- Hamburg University of Applied Sciences, Department of Engineering, Ulmenliet 20, 21033, Hamburg, Germany; RWTH University Aachen, Department of Ecosystem Analysis (ESA), Worringer Weg 1, 52074, Aachen, Germany
| | - M Schmidt
- Universität Hamburg, Department of Earth Sciences, Bundesstraße 55, 20146, Hamburg, Germany; Helmholtz-Zentrum Hereon, Institute of Coastal Environmental Chemistry, Max-Planck Str. 1, 21502, Geesthacht, Germany
| | - A Ebeling
- Helmholtz-Zentrum Hereon, Institute of Coastal Environmental Chemistry, Max-Planck Str. 1, 21502, Geesthacht, Germany; Universität Hamburg, Department of Chemistry, Inorganic and Applied Chemistry, Martin-Luther-King-Platz 6, 20146, Hamburg, Germany
| | - T Zimmermann
- Helmholtz-Zentrum Hereon, Institute of Coastal Environmental Chemistry, Max-Planck Str. 1, 21502, Geesthacht, Germany
| | - H Wolschke
- Helmholtz-Zentrum Hereon, Institute of Coastal Environmental Chemistry, Max-Planck Str. 1, 21502, Geesthacht, Germany
| | - J Friedrich
- Helmholtz-Zentrum Hereon, Institute of Carbon Cycles, Max-Planck Str. 1, 21502, Geesthacht, Germany
| | - B Brockmeyer
- Federal Maritime and Hydrographic Agency (BSH), Bernhard-Nocht-Str. 78, 20359, Hamburg, Germany
| | - D Pröfrock
- Helmholtz-Zentrum Hereon, Institute of Coastal Environmental Chemistry, Max-Planck Str. 1, 21502, Geesthacht, Germany.
| | - G Witt
- Hamburg University of Applied Sciences, Department of Engineering, Ulmenliet 20, 21033, Hamburg, Germany
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Heim L, Yang Z, Tausche P, Hohenberger K, Chiriac MT, Koelle J, Geppert CI, Kachler K, Miksch S, Graser A, Friedrich J, Kharwadkar R, Rieker RJ, Trufa DI, Sirbu H, Neurath MF, Kaplan MH, Finotto S. IL-9 Producing Tumor-Infiltrating Lymphocytes and Treg Subsets Drive Immune Escape of Tumor Cells in Non-Small Cell Lung Cancer. Front Immunol 2022; 13:859738. [PMID: 35514957 PMCID: PMC9065342 DOI: 10.3389/fimmu.2022.859738] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 03/10/2022] [Indexed: 01/05/2023] Open
Abstract
Although lung cancer is the leading cause of cancer deaths worldwide, the mechanisms how lung cancer cells evade the immune system remain incompletely understood. Here, we discovered IL-9-dependent signaling mechanisms that drive immune evasion in non-small cell lung cancer (NSCLC). We found increased IL-9 and IL-21 production by T cells in the tumoral region of the lung of patients with NSCLC, suggesting the presence of Th9 cells in the lung tumor microenvironment. Moreover, we noted IL-9 producing Tregs in NSCLC. IL-9 target cells in NSCLC consisted of IL-9R+ tumor cells and tumor-infiltrating lymphocytes. In two murine experimental models of NSCLC, and in vitro, IL-9 prevented cell death and controlled growth of lung adenocarcinoma cells. Targeted deletion of IL-9 resulted in successful lung tumor rejection in vivo associated with an induction of IL-21 and reduction of Treg cells. Finally, anti-IL-9 antibody immunotherapy resulted in suppression of tumor development even in established experimental NSCLC and was associated with reduced IL-10 production in the lung. In conclusion, our findings indicate that IL-9 drives immune escape of lung tumor cells via effects on tumor cell survival and tumor infiltrating T cells. Thus, strategies blocking IL-9 emerge as a new approach for clinical therapy of lung cancer.
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Affiliation(s)
- Lisanne Heim
- Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Zuqin Yang
- Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Patrick Tausche
- Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Katja Hohenberger
- Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Mircea T. Chiriac
- Department of Internal Medicine 1, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Julia Koelle
- Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Carol-Immanuel Geppert
- Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Katerina Kachler
- Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Sarah Miksch
- Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Anna Graser
- Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Juliane Friedrich
- Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Rakshin Kharwadkar
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Ralf J. Rieker
- Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Denis I. Trufa
- Department of Thoracic Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Horia Sirbu
- Department of Thoracic Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Markus F. Neurath
- Department of Internal Medicine 1, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Mark H. Kaplan
- Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Susetta Finotto
- Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- *Correspondence: Susetta Finotto,
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Roth-Rawald J, Friedrich J, Straub HB, Weck F. [Anxiety about Health of Patients Suffering from Epilepsy]. Psychother Psychosom Med Psychol 2021; 72:243-249. [PMID: 34911105 DOI: 10.1055/a-1686-9789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND The presence of somatic diseases makes diagnosis of health-related anxiety difficult. Studies have shown that a significant proportion of patients suffering from somatic diseases also suffer from illness anxiety. OBJECTIVE Patients suffering from epilepsy were examined, for whom no data regarding their illness anxiety had previously been obtained. METHOD 76 epileptics were analyzed regarding their psychological distress (Mini-SCL), fear of recurrence (PA-F) and hypochondriacal traits (MIHT). RESULTS In general, epileptics experienced the same level of distress and fear in comparison to a norm sample. At the same time, 28% (overall distress) to 45% (anxiety) of the study participants were observed to have abnormal values. The fear of recurrence was low in comparison to other somatic diagnosis groups. Hypochondriac traits were seen in 7% (perceptive) to 13% (affective/behavioral) of the respondents. CONCLUSION An increased awareness of illness anxiety in patients can help improve healthcare and quality of life of epileptics.
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Affiliation(s)
- Julia Roth-Rawald
- Abteilung für Klinische Psychologie und Psychotherapie, Universität Potsdam, Deutschland
| | - Juliane Friedrich
- Abteilung für Klinische Psychologie und Psychotherapie, Universität Potsdam, Deutschland
| | - Hans Beatus Straub
- Abteilung für Klinische Psychologie und Psychotherapie, Universität Potsdam, Deutschland.,Epilepsieklinik Tabor, Epilepsie-Zentrum Berlin-Brandenburg, Bernau, Deutschland
| | - Florian Weck
- Abteilung für Klinische Psychologie und Psychotherapie, Universität Potsdam, Deutschland
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Winkler M, Friedrich J, Boedicker C, Dolgikh N. Co-targeting MCL-1 and ERK1/2 kinase induces mitochondrial apoptosis in rhabdomyosarcoma cells. Transl Oncol 2021; 16:101313. [PMID: 34906889 PMCID: PMC8681038 DOI: 10.1016/j.tranon.2021.101313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 12/06/2021] [Indexed: 01/17/2023] Open
Abstract
Co-inhibition of ERK1/2 and MCL-1 induces synergistic cell death in rhabdomyosarcoma. Ulixertinib/S63845 co-treatment effectively induces caspase-dependent apoptosis. BIM, BMF, BAK and BAX are required for Ulixertinib/S63845-induced apoptosis.
The RAS/MEK/ERK genetic axis is commonly altered in rhabdomyosarcoma (RMS), indicating high activity of downstream effector ERK1/2 kinase. Previously, we have demonstrated that inhibition of the RAS/MEK/ERK signaling pathway in RMS is insufficient to induce cell death due to residual pro-survival MCL-1 activity. Here, we show that the combination of ERK1/2 inhibitor Ulixertinib and MCL-1 inhibitor S63845 is highly synergistic and induces apoptotic cell death in RMS in vitro and in vivo. Importantly, Ulixertinib/S63845 co-treatment suppresses long-term survival of RMS cells, induces rapid caspase activation and caspase-dependent apoptosis. Mechanistically, Ulixertinib-mediated upregulation of BIM and BMF in combination with MCL-1 inhibition by S63845 shifts the balance of BCL-2 proteins towards a pro-apoptotic state resulting in apoptosis induction. A genetic silencing approach reveals that BIM, BMF, BAK and BAX are all required for Ulixertinib/S63845-induced apoptosis. Overexpression of BCL-2 rescues cell death triggered by Ulixertinib/S63845 co-treatment, confirming that combined inhibition of ERK1/2 and MCL-1 effectively induces cell death of RMS cells via the intrinsic mitochondrial apoptotic pathway. Thus, this study is the first to demonstrate the cytotoxic potency of co-inhibition of ERK1/2 and MCL-1 for RMS treatment.
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Affiliation(s)
- Marius Winkler
- Institute for Experimental Cancer Research in Pediatrics, Goethe-University Frankfurt, Komturstr. 3a, 60528 Frankfurt, Germany
| | - Juliane Friedrich
- Institute for Experimental Cancer Research in Pediatrics, Goethe-University Frankfurt, Komturstr. 3a, 60528 Frankfurt, Germany
| | - Cathinka Boedicker
- Institute for Experimental Cancer Research in Pediatrics, Goethe-University Frankfurt, Komturstr. 3a, 60528 Frankfurt, Germany
| | - Nadezda Dolgikh
- Institute for Experimental Cancer Research in Pediatrics, Goethe-University Frankfurt, Komturstr. 3a, 60528 Frankfurt, Germany.
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Wang S, Strandberg E, Arvelius P, Clements DN, Wiener P, Friedrich J. Genome-wide association studies for canine hip dysplasia in single and multiple populations - implications and potential novel risk loci. BMC Genomics 2021; 22:636. [PMID: 34474664 PMCID: PMC8414704 DOI: 10.1186/s12864-021-07945-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 08/17/2021] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Association mapping studies of quantitative trait loci (QTL) for canine hip dysplasia (CHD) can contribute to the understanding of the genetic background of this common and debilitating disease and might contribute to its genetic improvement. The power of association studies for CHD is limited by relatively small sample numbers for CHD records within countries, suggesting potential benefits of joining data across countries. However, this is complicated due to the use of different scoring systems across countries. In this study, we incorporated routinely assessed CHD records and genotype data of German Shepherd dogs from two countries (UK and Sweden) to perform genome-wide association studies (GWAS) within populations using different variations of CHD phenotypes. As phenotypes, dogs were either classified into cases and controls based on the Fédération Cynologique Internationale (FCI) five-level grading of the worst hip or the FCI grade was treated as an ordinal trait. In a subsequent meta-analysis, we added publicly available data from a Finnish population and performed the GWAS across all populations. Genetic associations for the CHD phenotypes were evaluated in a linear mixed model using 62,089 SNPs. RESULTS Multiple SNPs with genome-wide significant and suggestive associations were detected in single-population GWAS and the meta-analysis. Few of these SNPs overlapped between populations or between single-population GWAS and the meta-analysis, suggesting that many CHD-related QTL are population-specific. More significant or suggestive SNPs were identified when FCI grades were used as phenotypes in comparison to the case-control approach. MED13 (Chr 9) and PLEKHA7 (Chr 21) emerged as novel positional candidate genes associated with hip dysplasia. CONCLUSIONS Our findings confirm the complex genetic nature of hip dysplasia in dogs, with multiple loci associated with the trait, most of which are population-specific. Routinely assessed CHD information collected across countries provide an opportunity to increase sample sizes and statistical power for association studies. While the lack of standardisation of CHD assessment schemes across countries poses a challenge, we showed that conversion of traits can be utilised to overcome this obstacle.
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Affiliation(s)
- Shizhi Wang
- Division of Genetics and Genomics, The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK
| | - Erling Strandberg
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, PO Box 7023, S-750 07, Uppsala, Sweden
| | - Per Arvelius
- Swedish Armed Forces Dog Training Centre, Box 194, SE-195 24, Märsta, Sweden
| | - Dylan N Clements
- Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK
| | - Pamela Wiener
- Division of Genetics and Genomics, The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK
| | - Juliane Friedrich
- Division of Genetics and Genomics, The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK.
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Friedrich J, Ulbig M, Maier M. [Young man with acute loss of vision]. Ophthalmologe 2021; 119:414-417. [PMID: 34448912 PMCID: PMC9005398 DOI: 10.1007/s00347-021-01484-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 07/07/2021] [Accepted: 07/26/2021] [Indexed: 10/25/2022]
Affiliation(s)
- J Friedrich
- Klinikum rechts der Isar, Augenklinik, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland.
| | - M Ulbig
- Klinikum rechts der Isar, Augenklinik, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland
| | - M Maier
- Klinikum rechts der Isar, Augenklinik, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland
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Friedrich J, Michels B, Lohfink-Schumm S, Mackert HI, Bargon J. [Cough and Exertional Dyspnoea after Oily Mentholine Inhalation]. Pneumologie 2021; 76:272-274. [PMID: 34348411 DOI: 10.1055/a-1545-3214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
A 48-year-old-male presented with a five-week history of non-productive cough and exertional dyspnoea. A pulmonary function test showed a mild diffusion disorder. A CT scan revealed an atypical pneumonia with bipulmonary consolidations, which were accentuated in the right upper lobe. The transbronchial biopsy showed lipid-loaded macrophages. These findings confirmed the diagnosis of a lipoid pneumonia, which developed in the context of inhalation of substances containing menthol. After discontinuation of the causative agent and high-dose steroid administration the symptoms were reversible within a few weeks.
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Eggeler G, Vogel H, Friedrich J, Kaesche H. Zielpräparation zum transmissionselektronenmikroskopischen Nachweis der Phase Al3Fe (Θ-Phase) auf tauchaluminiertem, niedriglegiertem Stahl / Target Preparation for the Transmission Electron Microscopic identification of the Al3Fe (Θ-Phase) in Hot-Dip Aluminised Low Alloyed Steel. ACTA ACUST UNITED AC 2021. [DOI: 10.1515/pm-1985-220402] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Wiener P, Robert C, Ahbara A, Salavati M, Abebe A, Kebede A, Wragg D, Friedrich J, Vasoya D, Hume DA, Djikeng A, Watson M, Prendergast JGD, Hanotte O, Mwacharo JM, Clark EL. Whole-Genome Sequence Data Suggest Environmental Adaptation of Ethiopian Sheep Populations. Genome Biol Evol 2021; 13:evab014. [PMID: 33501931 PMCID: PMC7955157 DOI: 10.1093/gbe/evab014] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/19/2021] [Indexed: 12/13/2022] Open
Abstract
Great progress has been made over recent years in the identification of selection signatures in the genomes of livestock species. This work has primarily been carried out in commercial breeds for which the dominant selection pressures are associated with artificial selection. As agriculture and food security are likely to be strongly affected by climate change, a better understanding of environment-imposed selection on agricultural species is warranted. Ethiopia is an ideal setting to investigate environmental adaptation in livestock due to its wide variation in geo-climatic characteristics and the extensive genetic and phenotypic variation of its livestock. Here, we identified over three million single nucleotide variants across 12 Ethiopian sheep populations and applied landscape genomics approaches to investigate the association between these variants and environmental variables. Our results suggest that environmental adaptation for precipitation-related variables is stronger than that related to altitude or temperature, consistent with large-scale meta-analyses of selection pressure across species. The set of genes showing association with environmental variables was enriched for genes highly expressed in human blood and nerve tissues. There was also evidence of enrichment for genes associated with high-altitude adaptation although no strong association was identified with hypoxia-inducible-factor (HIF) genes. One of the strongest altitude-related signals was for a collagen gene, consistent with previous studies of high-altitude adaptation. Several altitude-associated genes also showed evidence of adaptation with temperature, suggesting a relationship between responses to these environmental factors. These results provide a foundation to investigate further the effects of climatic variables on small ruminant populations.
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Affiliation(s)
- Pamela Wiener
- Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
| | - Christelle Robert
- Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
- Centre for Tropical Livestock Genetics and Health (CTLGH), Midlothian, United Kingdom
| | - Abulgasim Ahbara
- School of Life Sciences, University of Nottingham, United Kingdom
- Department of Zoology, Misurata University, Misurata, Libya
| | - Mazdak Salavati
- Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
- Centre for Tropical Livestock Genetics and Health (CTLGH), Midlothian, United Kingdom
| | - Ayele Abebe
- Debre Berhan Research Centre, Debre Berhan, Ethiopia
| | - Adebabay Kebede
- Amhara Regional Agricultural Research Institute, Bahir Dar, Ethiopia
- LiveGene, International Livestock Research Institute, Addis Ababa, Ethiopia
| | - David Wragg
- Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
- Centre for Tropical Livestock Genetics and Health (CTLGH), Midlothian, United Kingdom
| | - Juliane Friedrich
- Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
| | - Deepali Vasoya
- Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
| | - David A Hume
- Mater Research Institute-University of Queensland, Translational Research Institute, Brisbane, Australia
| | - Appolinaire Djikeng
- Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
- Centre for Tropical Livestock Genetics and Health (CTLGH), Midlothian, United Kingdom
| | - Mick Watson
- Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
- Centre for Tropical Livestock Genetics and Health (CTLGH), Midlothian, United Kingdom
| | - James G D Prendergast
- Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
- Centre for Tropical Livestock Genetics and Health (CTLGH), Midlothian, United Kingdom
| | - Olivier Hanotte
- Centre for Tropical Livestock Genetics and Health (CTLGH), Midlothian, United Kingdom
- School of Life Sciences, University of Nottingham, United Kingdom
- LiveGene, International Livestock Research Institute, Addis Ababa, Ethiopia
| | - Joram M Mwacharo
- Centre for Tropical Livestock Genetics and Health (CTLGH), Midlothian, United Kingdom
- Animal and Veterinary Sciences Group, Scotland’s Rural College (SRUC), Midlothian, United Kingdom
- Small Ruminant Genomics, International Centre for Agricultural Research in the Dry Areas (ICARDA), Addis Ababa, Ethiopia
| | - Emily L Clark
- Roslin Institute, University of Edinburgh, Midlothian, United Kingdom
- Centre for Tropical Livestock Genetics and Health (CTLGH), Midlothian, United Kingdom
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Friedrich J, Gallon S, Pumir A, Grauer R. Stochastic Interpolation of Sparsely Sampled Time Series via Multipoint Fractional Brownian Bridges. Phys Rev Lett 2020; 125:170602. [PMID: 33156686 DOI: 10.1103/physrevlett.125.170602] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 08/03/2020] [Accepted: 09/18/2020] [Indexed: 06/11/2023]
Abstract
We propose and test a method to interpolate sparsely sampled signals by a stochastic process with a broad range of spatial and/or temporal scales. To this end, we extend the notion of a fractional Brownian bridge, defined as fractional Brownian motion with a given scaling (Hurst) exponent H and with prescribed start and end points, to a bridge process with an arbitrary number of intermediate and nonequidistant points. Determining the optimal value of the Hurst exponent H_{opt}, appropriate to interpolate the sparse signal, is a very important step of our method. We demonstrate the validity of our method on a signal from fluid turbulence in a high Reynolds number flow and discuss the implications of the non-self-similar character of the signal. The method introduced here could be instrumental in several physical problems, including astrophysics, particle tracking, and specific tailoring of surrogate data, as well as in domains of natural and social sciences.
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Affiliation(s)
- J Friedrich
- Univ Lyon, ENS de Lyon, Univ Claude Bernard, CNRS, Laboratoire de Physique, F-69342, Lyon, France
| | - S Gallon
- Univ Lyon, ENS de Lyon, Univ Claude Bernard, CNRS, Laboratoire de Physique, F-69342, Lyon, France
- Institute for Theoretical Physics I, Ruhr-University Bochum, Universitätsstrasse 150, D-44801 Bochum, Germany
| | - A Pumir
- Univ Lyon, ENS de Lyon, Univ Claude Bernard, CNRS, Laboratoire de Physique, F-69342, Lyon, France
| | - R Grauer
- Institute for Theoretical Physics I, Ruhr-University Bochum, Universitätsstrasse 150, D-44801 Bochum, Germany
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Ribeiro R, Lee J, Friedrich J, Ouzounian M, Verma S, Yanagawa B. A SYSTEMATIC REVIEW AND META-ANALYSIS OF 45 RANDOMIZED STUDIES USING PROTOCOL-DRIVEN ASSESSMENT OF SAPHENOUS VEIN GRAFT PATENCY. Can J Cardiol 2020. [DOI: 10.1016/j.cjca.2020.07.183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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15
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Wang S, Friedrich J, Strandberg E, Arvelius P, Wiener P. Methods to Improve Joint Genetic Evaluation of Canine Hip Dysplasia Across BVA/KC and FCI Screening Schemes. Front Vet Sci 2020; 7:386. [PMID: 32850996 PMCID: PMC7432227 DOI: 10.3389/fvets.2020.00386] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 05/29/2020] [Indexed: 12/30/2022] Open
Abstract
The BVA/KC (British Veterinary Association/Kennel Club) and FCI (Fédération Cynologique Internationale) are the main screening schemes used to evaluate the status of canine hip dysplasia (HD) in Europe. Jointly utilizing HD records from both BVA/KC and FCI schemes could improve the reliability of genetic evaluation within and across countries. In this study, HD scores for German shepherd dogs (GSDs) in the UK (using the BVA/KC scheme) and Sweden (using the FCI scheme) were used to investigate how to better operate joint genetic evaluations across the two schemes. It was shown that under a bivariate model, which regarded BVA/KC and FCI scores as different traits, the estimated genetic correlations between the UK and Swedish GSD populations were the same when using BVA/KC total or worse hip scores and for single-country or joint analysis of both the UK and Swedish populations. Under a univariate model that converted BVA/KC scores into FCI scores, the predictability of estimated breeding values was slightly improved by performing a joint analysis.
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Affiliation(s)
- Shizhi Wang
- Division of Genetics and Genomics, The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, United Kingdom
| | - Juliane Friedrich
- Division of Genetics and Genomics, The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, United Kingdom
| | - Erling Strandberg
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Per Arvelius
- Swedish Armed Forces Dog Training Centre, Märsta, Sweden
| | - Pamela Wiener
- Division of Genetics and Genomics, The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, United Kingdom
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Friedrich J, Talenti A, Arvelius P, Strandberg E, Haskell MJ, Wiener P. Unravelling selection signatures in a single dog breed suggests recent selection for morphological and behavioral traits. Adv Genet (Hoboken) 2020; 1:e10024. [PMID: 36619250 PMCID: PMC9744541 DOI: 10.1002/ggn2.10024] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 03/18/2020] [Accepted: 03/18/2020] [Indexed: 01/11/2023]
Abstract
Strong selection has resulted in substantial morphological and behavioral diversity across modern dog breeds, which makes dogs interesting model animals to study the underlying genetic architecture of these traits. However, results from between-breed analyses may confound selection signatures for behavior and morphological features that were coselected during breed development. In this study, we assess population genetic differences in a unique resource of dogs of the same breed but with systematic behavioral selection in only one population. We exploit these different breeding backgrounds to identify signatures of recent selection. Selection signatures within populations were found on chromosomes 4 and 19, with the strongest signals in behavior-related genes. Regions showing strong signals of divergent selection were located on chromosomes 1, 24, and 32, and include candidate genes for both physical features and behavior. Some of the selection signatures appear to be driven by loci associated with coat color (Chr 24; ASIP) and length (Chr 32; FGF5), while others showed evidence of association with behavior. Our findings suggest that signatures of selection within dog breeds have been driven by selection for morphology and behavior. Furthermore, we demonstrate that combining selection scans with association analyses is effective for dissecting the traits under selection.
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Affiliation(s)
- Juliane Friedrich
- Division of Genetics and GenomicsThe Roslin Institute and Royal (Dick) School of Veterinary Studies, University of EdinburghMidlothianUK
| | - Andrea Talenti
- Division of Genetics and GenomicsThe Roslin Institute and Royal (Dick) School of Veterinary Studies, University of EdinburghMidlothianUK
| | - Per Arvelius
- Swedish Armed Forces Dog Training CenterMärstaSweden
| | - Erling Strandberg
- Department of Animal Breeding and GeneticsSwedish University of Agricultural SciencesUppsalaSweden
| | - Marie J. Haskell
- Animal & Veterinary SciencesScotland's Rural College (SRUC)EdinburghUK
| | - Pamela Wiener
- Division of Genetics and GenomicsThe Roslin Institute and Royal (Dick) School of Veterinary Studies, University of EdinburghMidlothianUK
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17
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Friedrich J, Wiener P. Selection signatures for high-altitude adaptation in ruminants. Anim Genet 2020; 51:157-165. [PMID: 31943284 DOI: 10.1111/age.12900] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 12/09/2019] [Accepted: 12/09/2019] [Indexed: 12/20/2022]
Abstract
High-altitude areas are important socio-economical habitats with ruminants serving as a major source of food and commodities for humans. Living at high altitude, however, is extremely challenging, predominantly due to the exposure to hypoxic conditions, but also because of cold temperatures and limited feed for livestock. To survive in high-altitude environments over the long term, ruminants have evolved adaptation strategies, e.g. physiological and morphological modifications, which allow them to cope with these harsh conditions. Identification of such selection signatures in ruminants may contribute to more informed breeding decisions, and thus improved productivity. Moreover, studying the genetic background of altitude adaptation in ruminants provides insights into a common molecular basis across species and thus a better understanding of the physiological basis of this adaptation. In this paper, we review the major effects of high altitude on the mammalian body and highlight some of the most important short-term (coping) and genetically evolved (adaptation) physiological modifications. We then discuss the genetic architecture of altitude adaptation and target genes that show evidence of being under selection based on recent studies in various species, with a focus on ruminants. The yak is presented as an interesting native species that has adapted to the high-altitude regions of Tibet. Finally, we conclude with implications and challenges of selection signature studies on altitude adaptation in general. We found that the number of studies on genetic mechanisms that enable altitude adaptation in ruminants is growing, with a strong focus on identifying selection signatures, and hypothesise that the investigation of genetic data from multiple species and regions will contribute greatly to the understanding of the genetic basis of altitude adaptation.
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Affiliation(s)
- J Friedrich
- Division of Genetics and Genomics, The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK
| | - P Wiener
- Division of Genetics and Genomics, The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK
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18
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Friedrich J, Strandberg E, Arvelius P, Sánchez-Molano E, Pong-Wong R, Hickey JM, Haskell MJ, Wiener P. Genetic dissection of complex behaviour traits in German Shepherd dogs. Heredity (Edinb) 2019; 123:746-758. [PMID: 31611599 PMCID: PMC6834583 DOI: 10.1038/s41437-019-0275-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 06/21/2019] [Accepted: 06/21/2019] [Indexed: 12/20/2022] Open
Abstract
A favourable genetic structure and diversity of behavioural features highlights the potential of dogs for studying the genetic architecture of behaviour traits. However, behaviours are complex traits, which have been shown to be influenced by numerous genetic and non-genetic factors, complicating their analysis. In this study, the genetic contribution to behaviour variation in German Shepherd dogs (GSDs) was analysed using genomic approaches. GSDs were phenotyped for behaviour traits using the established Canine Behavioural Assessment and Research Questionnaire (C-BARQ). Genome-wide association study (GWAS) and regional heritability mapping (RHM) approaches were employed to identify associations between behaviour traits and genetic variants, while accounting for relevant non-genetic factors. By combining these complementary methods we endeavoured to increase the power to detect loci with small effects. Several behavioural traits exhibited moderate heritabilities, with the highest identified for Human-directed playfulness, a trait characterised by positive interactions with humans. We identified several genomic regions associated with one or more of the analysed behaviour traits. Some candidate genes located in these regions were previously linked to behavioural disorders in humans, suggesting a new context for their influence on behaviour characteristics. Overall, the results support dogs as a valuable resource to dissect the genetic architecture of behaviour traits and also highlight the value of focusing on a single breed in order to control for background genetic effects and thus avoid limitations of between-breed analyses.
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Affiliation(s)
- Juliane Friedrich
- Division of Genetics and Genomics, The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK
| | - Erling Strandberg
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, PO Box 7023, 750 07, Uppsala, Sweden
| | - Per Arvelius
- Swedish Armed Forces Dog Training Centre, PO Box 194, 195 24, Märsta, Sweden
| | - E Sánchez-Molano
- Division of Genetics and Genomics, The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK
| | - Ricardo Pong-Wong
- Division of Genetics and Genomics, The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK
| | - John M Hickey
- Division of Genetics and Genomics, The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK
| | - Marie J Haskell
- Animal and Veterinary Sciences Group, Scotland's Rural College, Edinburgh, EH25 9RG, UK.
| | - Pamela Wiener
- Division of Genetics and Genomics, The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian, EH25 9RG, UK.
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Gardner-Nix J, Brodie R, Tjan E, Wilton M, Zoberman L, Barnes F, Friedrich J, Wood J. Scarborough's Palliative ‘At-Home’ Care Team (PACT): A Model for a Suburban Physician Palliative Care Team. J Palliat Care 2019. [DOI: 10.1177/082585979501100310] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
| | | | - E. Tjan
- Scarborough, Ontario, Canada
| | | | | | | | | | - J. Wood
- Scarborough, Ontario, Canada
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20
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Heim L, Kachler K, Siegmund R, Trufa DI, Mittler S, Geppert CI, Friedrich J, Rieker RJ, Sirbu H, Finotto S. Increased expression of the immunosuppressive interleukin-35 in patients with non-small cell lung cancer. Br J Cancer 2019; 120:903-912. [PMID: 30956278 PMCID: PMC6734661 DOI: 10.1038/s41416-019-0444-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 02/08/2019] [Accepted: 03/15/2019] [Indexed: 01/01/2023] Open
Abstract
Background The immunosuppressive role of the cytokine IL-35 in patients with non-small cell lung cancer (NSCLC) is poorly understood. In this study, we analysed the localisation and regulation of IL-35 in the lung of patients with non-small cell lung cancer (NSCLC) to further elucidate the immune-escape of cancer cells in perioperative course of disease. Methods Interleukin 35 (IL-35) was measured by ELISA in postoperative serum from 7 patients with NSCLC as well as 8 samples from healthy controls. Immunohistochemistry, FACS analysis, real-time PCR, as well as western blot from samples of the control (CTR), peri-tumoural (PT) and the tumoural (TU) region of the lung derived from patients with NSCLC and 10 controls were performed. Results Here we found elevated levels of IL-35 in the TU region as well as postoperative serum from patients with lung adenocarcinoma. Consistently, we found an increased expression of IL-35+Foxp-3+ cells, which associated with ARG1 mRNA expression and decreased TNFA in the TU region of the lung of patients with NSCLC as compared to their CTR region. Furthermore, in the CTR region of the lung of patients with NSCLC, CD68+ macrophages were induced and correlated with IL-35+ cells. Finally, IL-35 positively correlated with TTF-1+PD-L1+ cells in the TU region of NSCLC patients. Conclusions Induced IL-35+Foxp3+ cell numbers in the TU region of the lung of patients with NSCLC associated with ARG1 mRNA expression and with TTF-1+PD-L1+ cells. In the tumour-free CTR area, IL-35 correlated with CD68+ macrophages. Thus inhibitors to IL-35 would probably succeed in combination with antibodies against immune checkpoints like PD-L1 and PD-1 currently used against NSCLC because they would inhibit immunosuppressive macrophages and T regulatory cells while promoting T cell-mediated anti-tumoural immune responses in the microenvironment as well as the TU region of NSCLC patients.
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Affiliation(s)
- Lisanne Heim
- Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Katerina Kachler
- Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Raphaela Siegmund
- Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Denis I Trufa
- Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany.,Department of Thoracic Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Susanne Mittler
- Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Carol-Immanuel Geppert
- Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Juliane Friedrich
- Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Ralf J Rieker
- Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Horia Sirbu
- Department of Thoracic Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Susetta Finotto
- Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany.
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Friedrich J, Arvelius P, Strandberg E, Polgar Z, Wiener P, Haskell MJ. The interaction between behavioural traits and demographic and management factors in German Shepherd dogs. Appl Anim Behav Sci 2019. [DOI: 10.1016/j.applanim.2018.12.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Friedrich J, Heim L, Trufa DI, Sirbu H, Rieker RJ, Chiriac MT, Finotto S. STAT1 deficiency supports PD-1/PD-L1 signaling resulting in dysfunctional TNFα mediated immune responses in a model of NSCLC. Oncotarget 2018; 9:37157-37172. [PMID: 30647851 PMCID: PMC6324686 DOI: 10.18632/oncotarget.26441] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 11/26/2018] [Indexed: 12/27/2022] Open
Abstract
In this study we described that Signal Transducer and Activator of Transcription 1 (STAT1) is a key point regulator of PD-1 in tumour infiltrating lymphocytes and PD-L1 in Tumour associated macrophages (TAM) in NSCLC. In our murine model of adenocarcinoma targeted deletion of Stat1 was found associated with enhanced tumour growth, impaired differentiation into M1-like macrophages from the bone marrow, the accumulation of tumor associated macrophages overexpressing PD-L1 and impaired T cell responses in the tumor microenvironment by affecting TNFα responses. In our human NSCLC patient cohort we found that loss of isoforms STAT1 α and STAT1β mRNA in the tumoural region of the lung correlates with increased tumor size in NSCLC patients. Therefore, STAT1 isoform regulation could be considered for future therapeutical strategies associated to current immune-checkpoint blockade therapy in NSCLC.
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Affiliation(s)
- Juliane Friedrich
- Department of Molecular Pneumology, Friedrich Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Lisanne Heim
- Department of Molecular Pneumology, Friedrich Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Denis I Trufa
- Department of Thoracic Surgery, Friedrich Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Horia Sirbu
- Department of Thoracic Surgery, Friedrich Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Ralf J Rieker
- Institute of Pathology, Friedrich Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Mircea T Chiriac
- Department of Medicine 1-Gastroenterology, Pneumology and Endocrinology, Friedrich Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Susetta Finotto
- Department of Molecular Pneumology, Friedrich Alexander University Erlangen-Nürnberg, Erlangen, Germany
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Elbatarny M, Tam D, Edelman J, Rocha R, Chu M, Peterson M, El-Hamamsy I, Apoo J, Friedrich J, Boodhwani M, Yanagawa B, Ouzounian M. VALVE-SPARING ROOT REPLACEMENT VERSUS COMPOSITE VALVE GRAFT PROCEDURES IN THE MANAGEMENT OF AORTIC ROOT DILATION. Can J Cardiol 2018. [DOI: 10.1016/j.cjca.2018.07.238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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24
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Friedrich J, Antolín R, Edwards SM, Sánchez‐Molano E, Haskell MJ, Hickey JM, Wiener P. Accuracy of genotype imputation in Labrador Retrievers. Anim Genet 2018; 49:303-311. [PMID: 29974966 PMCID: PMC6055857 DOI: 10.1111/age.12677] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/05/2018] [Indexed: 12/12/2022]
Abstract
The dog is a valuable model species for the genetic analysis of complex traits, and the use of genotype imputation in dogs will be an important tool for future studies. It is of particular interest to analyse the effect of factors like single nucleotide polymorphism (SNP) density of genotyping arrays and relatedness between dogs on imputation accuracy due to the acknowledged genetic and pedigree structure of dog breeds. In this study, we simulated different genotyping strategies based on data from 1179 Labrador Retriever dogs. The study involved 5826 SNPs on chromosome 1 representing the high density (HighD) array; the low-density (LowD) array was simulated by masking different proportions of SNPs on the HighD array. The correlations between true and imputed genotypes for a realistic masking level of 87.5% ranged from 0.92 to 0.97, depending on the scenario used. A correlation of 0.92 was found for a likely scenario (10% of dogs genotyped using HighD, 87.5% of HighD SNPs masked in the LowD array), which indicates that genotype imputation in Labrador Retrievers can be a valuable tool to reduce experimental costs while increasing sample size. Furthermore, we show that genotype imputation can be performed successfully even without pedigree information and with low relatedness between dogs in the reference and validation sets. Based on these results, the impact of genotype imputation was evaluated in a genome-wide association analysis and genomic prediction in Labrador Retrievers.
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Affiliation(s)
- J. Friedrich
- Division of Genetics and GenomicsThe Roslin Institute and Royal (Dick) School of Veterinary StudiesUniversity of EdinburghMidlothianEH25 9RGUK
| | - R. Antolín
- Division of Genetics and GenomicsThe Roslin Institute and Royal (Dick) School of Veterinary StudiesUniversity of EdinburghMidlothianEH25 9RGUK
| | - S. M. Edwards
- Division of Genetics and GenomicsThe Roslin Institute and Royal (Dick) School of Veterinary StudiesUniversity of EdinburghMidlothianEH25 9RGUK
| | - E. Sánchez‐Molano
- Division of Genetics and GenomicsThe Roslin Institute and Royal (Dick) School of Veterinary StudiesUniversity of EdinburghMidlothianEH25 9RGUK
| | - M. J. Haskell
- Animal and Veterinary Sciences GroupScotland's Rural CollegeEdinburghEH9 3JGUK
| | - J. M. Hickey
- Division of Genetics and GenomicsThe Roslin Institute and Royal (Dick) School of Veterinary StudiesUniversity of EdinburghMidlothianEH25 9RGUK
| | - P. Wiener
- Division of Genetics and GenomicsThe Roslin Institute and Royal (Dick) School of Veterinary StudiesUniversity of EdinburghMidlothianEH25 9RGUK
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Heim L, Friedrich J, Engelhardt M, Trufa DI, Geppert CI, Rieker RJ, Sirbu H, Finotto S. NFATc1 Promotes Antitumoral Effector Functions and Memory CD8 + T-cell Differentiation during Non-Small Cell Lung Cancer Development. Cancer Res 2018; 78:3619-3633. [PMID: 29691251 DOI: 10.1158/0008-5472.can-17-3297] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 03/12/2018] [Accepted: 04/20/2018] [Indexed: 11/16/2022]
Abstract
Nuclear factor of activated T cells 1 (NFATc1) is a transcription factor activated by T-cell receptor (TCR) and Ca2+ signaling that affects T-cell activation and effector function. Upon tumor antigen challenge, TCR and calcium-release-activated channels are induced, promoting NFAT dephosphorylation and translocation into the nucleus. In this study, we report a progressive decrease of NFATc1 in lung tumor tissue and in tumor-infiltrating lymphocytes (TIL) of patients suffering from advanced-stage non-small cell lung cancer (NSCLC). Mice harboring conditionally inactivated NFATc1 in T cells (NFATc1ΔCD4) showed increased lung tumor growth associated with impaired T-cell activation and function. Furthermore, in the absence of NFATc1, reduced IL2 influenced the development of memory CD8+ T cells. We found a reduction of effector memory and CD103+ tissue-resident memory (TRM) T cells in the lung of tumor-bearing NFATc1ΔCD4 mice, underlining an impaired cytotoxic T-cell response and a reduced TRM tissue-homing capacity. In CD4+ICOS+ T cells, programmed cell death 1 (PD-1) was induced in the draining lymph nodes of these mice and associated with lung tumor cell growth. Targeting PD-1 resulted in NFATc1 induction in CD4+ and CD8+ T cells in tumor-bearing mice and was associated with increased antitumor cytotoxic functions. This study reveals a role of NFATc1 in the activation and cytotoxic functions of T cells, in the development of memory CD8+ T-cell subsets, and in the regulation of T-cell exhaustion. These data underline the indispensability of NFATc1 for successful antitumor immune responses in patients with NSCLC.Significance: The multifaceted role of NFATc1 in the activation and function of T cells during lung cancer development makes it a critical participant in antitumor immune responses in patients with NSCLC. Cancer Res; 78(13); 3619-33. ©2018 AACR.
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Affiliation(s)
- Lisanne Heim
- Department of Molecular Pneumology, University Hospital, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Juliane Friedrich
- Department of Molecular Pneumology, University Hospital, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Marina Engelhardt
- Department of Molecular Pneumology, University Hospital, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Denis I Trufa
- Department of Thoracic Surgery, University Hospital, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Carol I Geppert
- Institute of Pathology, University Hospital, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Ralf J Rieker
- Institute of Pathology, University Hospital, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Horia Sirbu
- Department of Thoracic Surgery, University Hospital, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Susetta Finotto
- Department of Molecular Pneumology, University Hospital, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany.
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Vahl JM, Friedrich J, Mittler S, Trump S, Heim L, Kachler K, Balabko L, Fuhrich N, Geppert CI, Trufa DI, Sopel N, Rieker R, Sirbu H, Finotto S. Interleukin-10-regulated tumour tolerance in non-small cell lung cancer. Br J Cancer 2017; 117:1644-1655. [PMID: 29016555 PMCID: PMC5729436 DOI: 10.1038/bjc.2017.336] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 08/03/2017] [Accepted: 08/30/2017] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Lung cancer is the most life-threatening cancer type worldwide. Treatment options include surgery, radio- and chemotherapy, as well as the use of immunomodulatory antibodies. Interleukin (IL)-10 is an immunosuppressive cytokine involved in tumour immune escape. METHODS Immunohistochemistry (IHC) on human lung surgery tissue as well as human tumour cell line cultures, FACS analysis, real-time PCR and experimental lung cancer. RESULTS Here we discovered a positive correlation between IL-10 and IL-10 receptor (IL-10R) expression in the lung with tumour diameter in patients with lung cancer (non-small cell lung cancer), the most life-threatening cancer type worldwide. IL-10 and IL-10R were found induced in cells surrounding the lung tumour cells, and IL-10R was mainly expressed on the surface of Foxp-3+ T-regulatory lymphocytes infiltrating the tumour of these patients where its expression inversely correlated with programmed cell death 1. These findings were confirmed in translational studies. In a human lung adenocarcinoma cell line, IL-10R was found induced under metabolic restrictions present during tumour growth, whereby IL-10 inhibited PDL1 and tumour cell apoptosis. CONCLUSIONS These new findings suggest that IL-10 counteracts IFN-γ effects on PD1/PDL1 pathway, resulting in possible resistance of the tumour to anti-PD1/PDL1 immunotherapy.
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Affiliation(s)
- Julius Malte Vahl
- Laboratory of Cellular and Molecular Lung Immunology, Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Hartmannstraβe 14, Erlangen 91052, Germany
| | - Juliane Friedrich
- Laboratory of Cellular and Molecular Lung Immunology, Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Hartmannstraβe 14, Erlangen 91052, Germany
| | - Susanne Mittler
- Laboratory of Cellular and Molecular Lung Immunology, Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Hartmannstraβe 14, Erlangen 91052, Germany
| | - Sonja Trump
- Laboratory of Cellular and Molecular Lung Immunology, Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Hartmannstraβe 14, Erlangen 91052, Germany
| | - Lisanne Heim
- Laboratory of Cellular and Molecular Lung Immunology, Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Hartmannstraβe 14, Erlangen 91052, Germany
| | - Katerina Kachler
- Laboratory of Cellular and Molecular Lung Immunology, Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Hartmannstraβe 14, Erlangen 91052, Germany
| | - Liubov Balabko
- Laboratory of Cellular and Molecular Lung Immunology, Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Hartmannstraβe 14, Erlangen 91052, Germany
| | - Nicole Fuhrich
- Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Krankenhausstraβe 8-10, Erlangen 91054, Germany
| | - Carol-Immanuel Geppert
- Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Krankenhausstraβe 8-10, Erlangen 91054, Germany
| | - Denis Iulian Trufa
- Department of Thoracic Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Krankenhausstraβe 12, Erlangen 91054, Germany
| | - Nina Sopel
- Laboratory of Cellular and Molecular Lung Immunology, Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Hartmannstraβe 14, Erlangen 91052, Germany
| | - Ralf Rieker
- Institute of Pathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Krankenhausstraβe 8-10, Erlangen 91054, Germany
| | - Horia Sirbu
- Department of Thoracic Surgery, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Krankenhausstraβe 12, Erlangen 91054, Germany
| | - Susetta Finotto
- Laboratory of Cellular and Molecular Lung Immunology, Department of Molecular Pneumology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Hartmannstraβe 14, Erlangen 91052, Germany
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Yanagawa B, Mazine A, Tam D, Juni P, Bhatt D, Spindel S, Puskas J, Verma S, Friedrich J. HOMOGRAFT VERSUS CONVENTIONAL PROSTHESIS FOR SURGICAL MANAGEMENT OF AORTIC VALVE INFECTIVE ENDOCARDITIS A SYSTEMATIC REVIEW AND META-ANALYSIS. Can J Cardiol 2017. [DOI: 10.1016/j.cjca.2017.07.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Yanagawa B, Elbatarny M, Verma S, Hill S, Mazine A, Puskas J, Friedrich J. SURGICAL MANAGEMENT OF TRICUSPID VALVE INFECTIVE ENDOCARDITIS: A SYSTEMATIC REVIEW AND META-ANALYSIS. Can J Cardiol 2017. [DOI: 10.1016/j.cjca.2017.07.175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Friedrich J, Kroß B, Trump S, Holzinger C, Finotto S. The Role of Interleukin (IL) - 10 in a murine model of lung adenocarcinoma (ADC). Lung Cancer 2017. [DOI: 10.1183/1393003.congress-2017.pa4207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Friedrich J, Kroß B, Trump S, Holzinger C, Chiriac M, Finotto S. The Role of Signal Transducer and Activator of Transcription protein 1 (STAT1) in a murine model of lung adenocarcinoma (ADC). Lung Cancer 2017. [DOI: 10.1183/1393003.congress-2017.pa3304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Belitz R, Meisner P, Coeler M, Wunderwald U, Friedrich J, Zosel J, Schelter M, Jachalke S, Mehner E. Waste Heat Energy Harvesting by use of BaTiO3 for Pyroelectric Hydrogen Generation. ACTA ACUST UNITED AC 2017. [DOI: 10.1515/ehs-2016-0009] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The generation of hydrogen as a chemical energy storage for power generation via fuel cells or for the synthesis of fuels has attained a strong interest in recent years. By way of example this is realized using electrolysis of water with the help of excess electricity of wind power plants. However with low temperature grade waste heat as it could be found in many industrial and household applications, there is another source of usable energy for this purpose. In a first pragmatic experimentation we investigated the pyroelectric effect of ferroelectric BaTiO3 combined with a temperature cycling to generate hydrogen from water. Therefore, single crystals ground to powder were brought into contact with distilled water and set to a cyclical temperature change from 40 °C to 70 °C. With the help of a highly selective and sensitive measuring system based on a coulometric solid electrolyte detector we could provide a first indication of pyroelectric generated hydrogen by a fraction of 300 Vol.-ppb in the sample gas.
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Affiliation(s)
- R. Belitz
- Fraunhofer THM , 09599 Freiberg , Germany
| | - P. Meisner
- Fraunhofer THM , 09599 Freiberg , Germany
| | - M. Coeler
- Fraunhofer THM , 09599 Freiberg , Germany
| | | | - J. Friedrich
- Fraunhofer THM , 09599 Freiberg , Germany
- Fraunhofer IISB , 91058 Erlangen , Germany
| | - J. Zosel
- Kurt-Schwabe-Institut für Mess- und Sensortechnik e.V. Meinsberg , 04736 Waldheim , Germany
| | - M. Schelter
- Kurt-Schwabe-Institut für Mess- und Sensortechnik e.V. Meinsberg , 04736 Waldheim , Germany
| | - S. Jachalke
- Institut für Experimentelle Physik , TU Bergakademie Freiberg , 09599 Freiberg , Germany
| | - E. Mehner
- Institut für Experimentelle Physik , TU Bergakademie Freiberg , 09599 Freiberg , Germany
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Stockmeier L, Lehmann L, Miller A, Reimann C, Friedrich J. Dislocation formation in heavily As-doped Czochralski grown silicon. Crystal Research and Technology 2017. [DOI: 10.1002/crat.201600373] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- L. Stockmeier
- Fraunhofer THM; Am St.-Niclas-Schacht 13 09599 Freiberg Germany
| | - L. Lehmann
- Siltronic AG; Berthelsdorfer Straße 113 09599 Freiberg Germany
| | - A. Miller
- Siltronic AG; Johannes-Hess-Straße 24 84489 Burghausen Germany
| | - C. Reimann
- Fraunhofer THM; Am St.-Niclas-Schacht 13 09599 Freiberg Germany
- Fraunhofer IISB; Schottkystraße 10 91058 Erlangen Germany
| | - J. Friedrich
- Fraunhofer THM; Am St.-Niclas-Schacht 13 09599 Freiberg Germany
- Fraunhofer IISB; Schottkystraße 10 91058 Erlangen Germany
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Dy G, Morrison S, Chong H, Holt S, Vedder N, Joyner B, Friedrich J, Sorensen M. 052 The Current State of Surgical Training in Transgender Care – A National Survey of Urology and Plastic Surgery Residency Programs. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2016.12.066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Stößer R, Sauer J, Ewert U, Friedrich J, Lück R. EPR- und UV-spektroskopische Untersuchungen zur Elektronenstruktur von Cu(II)- und VO(II)-Phenacylpyridin- Komplexen. Z PHYS CHEM 2017. [DOI: 10.1515/zpch-1978-25937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Brand B, Scheinhardt MO, Friedrich J, Zimmer D, Reinsch N, Ponsuksili S, Schwerin M, Ziegler A. Erratum to: Adrenal cortex expression quantitative trait loci in a German Holstein × Charolais cross. BMC Genet 2016; 17:148. [PMID: 27903236 PMCID: PMC5129642 DOI: 10.1186/s12863-016-0450-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 10/24/2016] [Indexed: 11/16/2022] Open
Affiliation(s)
- Bodo Brand
- Institute for Genome Biology, Leibniz Institute for Farm Animal Biology, Wilhelm-Stahl-Allee, Dummerstorf, Germany.,Current affiliation: Institute for Farm Animal Research and Technology, University of Rostock, Justus-von-Liebig-Weg, 18059, Rostock, Germany
| | - Markus O Scheinhardt
- Institute of Medical Biometry and Statistics, University of Lübeck, Ratzeburger Allee, Lübeck, Germany
| | - Juliane Friedrich
- Institute for Farm Animal Research and Technology, University of Rostock, Justus-von-Liebig-Weg, Rostock, Germany
| | - Daisy Zimmer
- Institute for Farm Animal Research and Technology, University of Rostock, Justus-von-Liebig-Weg, Rostock, Germany
| | - Norbert Reinsch
- Institute for Genetics and Biometry, Leibniz Institute for Farm Animal Biology, Wilhelm-Stahl-Allee, Dummerstorf, Germany
| | - Siriluck Ponsuksili
- Institute for Genome Biology, Leibniz Institute for Farm Animal Biology, Wilhelm-Stahl-Allee, Dummerstorf, Germany
| | - Manfred Schwerin
- Institute for Genome Biology, Leibniz Institute for Farm Animal Biology, Wilhelm-Stahl-Allee, Dummerstorf, Germany.,Institute for Farm Animal Research and Technology, University of Rostock, Justus-von-Liebig-Weg, Rostock, Germany
| | - Andreas Ziegler
- Institute of Medical Biometry and Statistics, University of Lübeck, Ratzeburger Allee, Lübeck, Germany. .,Center for Clinical Trials, University of Lübeck, Ratzeburger Allee, Lübeck, Germany. .,School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Pietermaritzburg, South Africa.
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Brand B, Scheinhardt MO, Friedrich J, Zimmer D, Reinsch N, Ponsuksili S, Schwerin M, Ziegler A. Adrenal cortex expression quantitative trait loci in a German Holstein × Charolais cross. BMC Genet 2016; 17:135. [PMID: 27716033 PMCID: PMC5053117 DOI: 10.1186/s12863-016-0442-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 09/28/2016] [Indexed: 12/30/2022] Open
Abstract
Background The importance of the adrenal gland in regard to lactation and reproduction in cattle has been recognized early. Caused by interest in animal welfare and the impact of stress on economically important traits in farm animals the adrenal gland and its function within the stress response is of increasing interest. However, the molecular mechanisms and pathways involved in stress-related effects on economically important traits in farm animals are not fully understood. Gene expression is an important mechanism underlying complex traits, and genetic variants affecting the transcript abundance are thought to influence the manifestation of an expressed phenotype. We therefore investigated the genetic background of adrenocortical gene expression by applying an adaptive linear rank test to identify genome-wide expression quantitative trait loci (eQTL) for adrenal cortex transcripts in cattle. Results A total of 10,986 adrenal cortex transcripts and 37,204 single nucleotide polymorphisms (SNPs) were analysed in 145 F2 cows of a Charolais × German Holstein cross. We identified 505 SNPs that were associated with the abundance of 129 transcripts, comprising 482 cis effects and 17 trans effects. These SNPs were located on all chromosomes but X, 16, 24 and 28. Associated genes are mainly involved in molecular and cellular functions comprising free radical scavenging, cellular compromise, cell morphology and lipid metabolism, including genes such as CYP27A1 and LHCGR that have been shown to affect economically important traits in cattle. Conclusions In this study we showed that adrenocortical eQTL affect the expression of genes known to contribute to the phenotypic manifestation in cattle. Furthermore, some of the identified genes and related molecular pathways were previously shown to contribute to the phenotypic variation of behaviour, temperament and growth at the onset of puberty in the same population investigated here. We conclude that eQTL analysis appears to be a useful approach providing insight into the molecular and genetic background of complex traits in cattle and will help to understand molecular networks involved. Electronic supplementary material The online version of this article (doi:10.1186/s12863-016-0442-x) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Bodo Brand
- Institute for Genome Biology, Leibniz Institute for Farm Animal Biology, Wilhelm-Stahl-Allee, Dummerstorf, Germany.,Current affiliation: Institute for Farm Animal Research and Technology, University of Rostock, Justus-von-Liebig-Weg, 18059, Rostock, Germany
| | - Markus O Scheinhardt
- Institute of Medical Biometry and Statistics, University of Lübeck, Ratzeburger Allee, Lübeck, Germany
| | - Juliane Friedrich
- Institute for Farm Animal Research and Technology, University of Rostock, Justus-von-Liebig-Weg, Rostock, Germany
| | - Daisy Zimmer
- Institute for Farm Animal Research and Technology, University of Rostock, Justus-von-Liebig-Weg, Rostock, Germany
| | - Norbert Reinsch
- Institute for Genetics and Biometry, Leibniz Institute for Farm Animal Biology, Wilhelm-Stahl-Allee, Dummerstorf, Germany
| | - Siriluck Ponsuksili
- Institute for Genome Biology, Leibniz Institute for Farm Animal Biology, Wilhelm-Stahl-Allee, Dummerstorf, Germany
| | - Manfred Schwerin
- Institute for Genome Biology, Leibniz Institute for Farm Animal Biology, Wilhelm-Stahl-Allee, Dummerstorf, Germany.,Institute for Farm Animal Research and Technology, University of Rostock, Justus-von-Liebig-Weg, Rostock, Germany
| | - Andreas Ziegler
- Institute of Medical Biometry and Statistics, University of Lübeck, Ratzeburger Allee, Lübeck, Germany. .,Center for Clinical Trials, University of Lübeck, Ratzeburger Allee, Lübeck, Germany. .,School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Pietermaritzburg, South Africa.
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Friedrich J, Brand B, Graunke KL, Langbein J, Schwerin M, Ponsuksili S. Adrenocortical Expression Profiling of Cattle with Distinct Juvenile Temperament Types. Behav Genet 2016; 47:102-113. [PMID: 27586633 DOI: 10.1007/s10519-016-9816-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 08/27/2016] [Indexed: 01/13/2023]
Abstract
Temperament affects ease of handling, animal welfare, and economically important production traits in cattle. The use of gene expression profiles as molecular traits provides a novel means of gaining insight into behavioural genetics. In this study, differences in adrenocortical expression profiles between 60 F2 cows (Charolais × German Holstein) of distinct temperament types were analysed. The cows were assessed in a novel-human test at an age of 90 days. Most of the adrenal cortex transcripts which were differentially expressed (FDR <0.05) were found between temperament types of 'fearful/neophobic-alert' and all other temperament types. These transcripts belong to several biological functions like NRF2-mediated oxidative stress response, Glucocorticoid Receptor Signalling and Complement System. Overall, the present study provides new insight into transcriptional differences in the adrenal cortex between cows of distinct temperament types. Genetic regulations of such molecular traits facilitate uncovering positional and functional gene candidates for temperament type in cattle.
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Affiliation(s)
- Juliane Friedrich
- Institute for Farm Animal Research and Technology, University of Rostock, Rostock, Germany
| | - Bodo Brand
- Institute for Genome Biology, Leibniz Institute for Farm Animal Biology, Wilhelm-Stahl-Allee 2, 18196, Dummerstorf, Germany
| | - Katharina Luise Graunke
- Institute for Behavioural Physiology, Leibniz Institute for Farm Animal Biology, Dummerstorf, Germany
| | - Jan Langbein
- Institute for Behavioural Physiology, Leibniz Institute for Farm Animal Biology, Dummerstorf, Germany
| | - Manfred Schwerin
- Institute for Farm Animal Research and Technology, University of Rostock, Rostock, Germany.,Institute for Genome Biology, Leibniz Institute for Farm Animal Biology, Wilhelm-Stahl-Allee 2, 18196, Dummerstorf, Germany
| | - Siriluck Ponsuksili
- Institute for Genome Biology, Leibniz Institute for Farm Animal Biology, Wilhelm-Stahl-Allee 2, 18196, Dummerstorf, Germany.
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Köhler J, Friedrich J, Ostendorf A, Gurevich EL. Characterization of azimuthal and radial velocity fields induced by rotors in flows with a low Reynolds number. Phys Rev E 2016; 93:023108. [PMID: 26986414 DOI: 10.1103/physreve.93.023108] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Indexed: 11/07/2022]
Abstract
We theoretically and experimentally investigate the flow field that emerges from a rodlike microrotor rotating about its center in a nonaxisymmetric manner. A simple theoretical model is proposed that uses a superposition of two rotlets as a fundamental solution to the Stokes equation. The predictions of this model are compared to measurements of the azimuthal and radial microfluidic velocity field components that are induced by a rotor composed of fused microscopic spheres. The rotor is driven magnetically and the fluid flow is measured with the help of a probe particle fixed by an optical tweezer. We find considerable deviations of the mere azimuthal flow pattern induced by a single rotating sphere as it has been reported by Di Leonardo et al. [Phys. Rev. Lett. 96, 134502 (2006)]. Notably, the presence of a radial velocity component that manifests itself by an oscillation of the probe particle with twice the rotor frequency is observed. These findings open up a way to discuss possible radial transport in microfluidic devices.
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Affiliation(s)
- J Köhler
- Applied Laser Technologies, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - J Friedrich
- Insitut für Theoretische Physik I, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - A Ostendorf
- Applied Laser Technologies, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - E L Gurevich
- Applied Laser Technologies, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
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Friedrich J, Zelniker T, Domschke G, Sohn C, Katus HA. Erstmanifestation einer portopulmonalen Hypertonie bei einer Drittgravida mit HELLP-Syndrom. Pneumologie 2016. [DOI: 10.1055/s-0036-1572173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Zelniker T, Uhlmann L, Spaich S, Friedrich J, Preusch M, Meyer FJ, Katus HA, Giannitsis E. Novel biomarkers for risk stratification in pulmonary arterial hypertension. Pneumologie 2016. [DOI: 10.1055/s-0036-1572121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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41
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Friedrich J, Brand B, Ponsuksili S, Graunke KL, Langbein J, Knaust J, Kühn C, Schwerin M. Detection of genetic variants affecting cattle behaviour and their impact on milk production: a genome-wide association study. Anim Genet 2015; 47:12-8. [PMID: 26515756 DOI: 10.1111/age.12371] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/25/2015] [Indexed: 01/13/2023]
Abstract
Behaviour traits of cattle have been reported to affect important production traits, such as meat quality and milk performance as well as reproduction and health. Genetic predisposition is, together with environmental stimuli, undoubtedly involved in the development of behaviour phenotypes. Underlying molecular mechanisms affecting behaviour in general and behaviour and productions traits in particular still have to be studied in detail. Therefore, we performed a genome-wide association study in an F2 Charolais × German Holstein cross-breed population to identify genetic variants that affect behaviour-related traits assessed in an open-field and novel-object test and analysed their putative impact on milk performance. Of 37,201 tested single nucleotide polymorphism (SNPs), four showed a genome-wide and 37 a chromosome-wide significant association with behaviour traits assessed in both tests. Nine of the SNPs that were associated with behaviour traits likewise showed a nominal significant association with milk performance traits. On chromosomes 14 and 29, six SNPs were identified to be associated with exploratory behaviour and inactivity during the novel-object test as well as with milk yield traits. Least squares means for behaviour and milk performance traits for these SNPs revealed that genotypes associated with higher inactivity and less exploratory behaviour promote higher milk yields. Whether these results are due to molecular mechanisms simultaneously affecting behaviour and milk performance or due to a behaviour predisposition, which causes indirect effects on milk performance by influencing individual reactivity, needs further investigation.
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Affiliation(s)
- Juliane Friedrich
- Faculty of Agricultural and Environmental Science, University of Rostock, Rostock, 18059, Germany
| | - Bodo Brand
- Institute for Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), Dummerstorf, 18196, Germany
| | - Siriluck Ponsuksili
- Institute for Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), Dummerstorf, 18196, Germany
| | - Katharina L Graunke
- Faculty of Agricultural and Environmental Science, University of Rostock, Rostock, 18059, Germany
| | - Jan Langbein
- Institute of Behavioural Physiology, Leibniz Institute for Farm Animal Biology (FBN), Dummerstorf, 18196, Germany
| | - Jacqueline Knaust
- Institute for Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), Dummerstorf, 18196, Germany
| | - Christa Kühn
- Faculty of Agricultural and Environmental Science, University of Rostock, Rostock, 18059, Germany.,Institute for Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), Dummerstorf, 18196, Germany
| | - Manfred Schwerin
- Faculty of Agricultural and Environmental Science, University of Rostock, Rostock, 18059, Germany.,Institute for Genome Biology, Leibniz Institute for Farm Animal Biology (FBN), Dummerstorf, 18196, Germany
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Schneider V, Reimann C, Friedrich J, Müller G. Nitride bonded silicon nitride as a reusable crucible material for directional solidification of silicon. Crystal Research and Technology 2015. [DOI: 10.1002/crat.201500160] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- V. Schneider
- Fraunhofer Institute for Integrated Systems and Device Technology IISB; Schottkystraße 10 91058 Erlangen Germany
| | - C. Reimann
- Fraunhofer Institute for Integrated Systems and Device Technology IISB; Schottkystraße 10 91058 Erlangen Germany
- Fraunhofer Technology Center for Semiconductor Materials THM; Am St. Niclas Schacht 13 09599 Freiberg Germany
| | - J. Friedrich
- Fraunhofer Institute for Integrated Systems and Device Technology IISB; Schottkystraße 10 91058 Erlangen Germany
- Fraunhofer Technology Center for Semiconductor Materials THM; Am St. Niclas Schacht 13 09599 Freiberg Germany
| | - G. Müller
- Fraunhofer Institute for Integrated Systems and Device Technology IISB; Schottkystraße 10 91058 Erlangen Germany
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Ludwig S, Stumm M, Friedrich J, Mallmann P, Jäger W. Die operative Behandlung des weiblichen Genitalprolapses mit CESA/VASA. Geburtshilfe Frauenheilkd 2015. [DOI: 10.1055/s-0035-1560019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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44
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Stumm M, Mauch ED, Ludwig S, Friedrich J, Jäger W. Die operative Behandlung der Dranginkontinenz mit der Cervicosacropexie (CESA) – ein Vergleich der Behandlungsergebnisse der Oberschwabenklinik Wangen (OSK) mit der Frauenklinik der Universität zu Köln (UFK). Geburtshilfe Frauenheilkd 2015. [DOI: 10.1055/s-0035-1560020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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45
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Stumm M, Ludwig S, Mauch ED, Friedrich J, Jäger W. Die operative Behandlung der Dranginkontinenz mit der Cervicosacropexie (CESA) – Ein Vergleich der Behandlungsergebnisse der Oberschwabenklinik Wangen (OSK) mit der Frauenklinik der Universität zu Köln (UFK). Geburtshilfe Frauenheilkd 2015. [DOI: 10.1055/s-0035-1555029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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46
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Friedrich J, Pfister F, Sticht C, Kolibabka M, Hammes HP, Krenning G. microRNA Signatur bei Diabetischer Retinopathie. DIABETOL STOFFWECHS 2015. [DOI: 10.1055/s-0035-1549688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Friedrich J, Brand B, Schwerin M. Genetics of cattle temperament and its impact on livestock production and breeding – a review. Arch Anim Breed 2015. [DOI: 10.5194/aab-58-13-2015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract. Cattle temperament, which describes individual behaviour differences with regard to a stressor or environmental challenge, is known for its impact on working safety, adaptability to new housing conditions, animal productivity and for evaluation of animal welfare. However, successful use of temperament in animal breeding and husbandry to improve keeping conditions in general or animal welfare in particular, requires the availability of informative and reproducible phenotypes and knowledge about the genetic modulation of these traits. However, the knowledge about genetic influences on cattle temperament is still limited. In this review, an outline is given for the interdependence between production systems and temperament as well as for the phenotyping of cattle temperament based on both behaviour tests and observations of behaviour under production conditions. In addition, the use of temperament as a selection criterion is discussed.
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Friedrich J, Ludwig S, Mallmann P, Jäger W, Kaup FJ, Mätz-Rensing K. Bedeutung und Funktion der Uterosacralligamente – Untersuchungen am Rhesusaffen. Geburtshilfe Frauenheilkd 2014. [DOI: 10.1055/s-0034-1388265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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50
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Perez J, Stetter C, Friedrich J, Ernestus R, Gelbrich G, Matthies C. Impact of Facial Nerve Function on Quality of Life after Vestibular Schwannoma Surgery. Skull Base Surg 2014. [DOI: 10.1055/s-0034-1384043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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