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Schmidt C, Dörner K, Schulz J, Lorenzen K. A metal-binding GFP-derivative reused as novel standard sample for serial crystallography approaches at FELs. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322093366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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Han H, Brings L, Chretien A, De Diego I, Round E, Schmidt C, Schubert R, Schulz J, Lorenzen K. Protein crystallization and characterization for serial femtosecond crystallography at the European XFEL. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322089926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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Vogt J, Klaus VH, Both S, Fürstenau C, Gockel S, Gossner MM, Heinze J, Hemp A, Hölzel N, Jung K, Kleinebecker T, Lauterbach R, Lorenzen K, Ostrowski A, Otto N, Prati D, Renner S, Schumacher U, Seibold S, Simons N, Steitz I, Teuscher M, Thiele J, Weithmann S, Wells K, Wiesner K, Ayasse M, Blüthgen N, Fischer M, Weisser WW. Eleven years' data of grassland management in Germany. Biodivers Data J 2019; 7:e36387. [PMID: 31598068 PMCID: PMC6778154 DOI: 10.3897/bdj.7.e36387] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 09/19/2019] [Indexed: 11/21/2022] Open
Abstract
Background The 150 grassland plots were located in three study regions in Germany, 50 in each region. The dataset describes the yearly grassland management for each grassland plot using 116 variables. General information includes plot identifier, study region and survey year. Additionally, grassland plot characteristics describe the presence and starting year of drainage and whether arable farming had taken place 25 years before our assessment, i.e. between 1981 and 2006. In each year, the size of the management unit is given which, in some cases, changed slightly across years. Mowing, grazing and fertilisation were systematically surveyed: Mowing is characterised by mowing frequency (i.e. number of cuts per year), dates of cutting and different technical variables, such as type of machine used or usage of conditioner. For grazing, the livestock species and age (e.g. cattle, horse, sheep), the number of animals, stocking density per hectare and total duration of grazing were recorded. As a derived variable, the mean grazing intensity was then calculated by multiplying the livestock units with the duration of grazing per hectare [LSU days/ha]. Different grazing periods during a year, partly involving different herds, were summed up to an annual grazing intensity for each grassland. For fertilisation, information on the type and amount of different types of fertilisers was recorded separately for mineral and organic fertilisers, such as solid farmland manure, slurry and mash from a bioethanol factory. Our fertilisation measures neglect dung dropped by livestock during grazing. For each type of fertiliser, we calculated its total nitrogen content, derived from chemical analyses by the producer or agricultural guidelines (Table 3). All three management types, mowing, fertilisation and grazing, were used to calculate a combined land use intensity index (LUI) which is frequently used to define a measure for the land use intensity. Here, fertilisation is expressed as total nitrogen per hectare [kg N/ha], but does not consider potassium and phosphorus. Information on additional management practices in grasslands was also recorded including levelling, to tear-up matted grass covers, rolling, to remove surface irregularities, seed addition, to close gaps in the sward. New information Investigating the relationship between human land use and biodiversity is important to understand if and how humans affect it through the way they manage the land and to develop sustainable land use strategies. Quantifying land use (the ‘X’ in such graphs) can be difficult as humans manage land using a multitude of actions, all of which may affect biodiversity, yet most studies use rather simple measures of land use, for example, by creating land use categories such as conventional vs. organic agriculture. Here, we provide detailed data on grassland management to allow for detailed analyses and the development of land use theory. The raw data have already been used for > 100 papers on the effect of management on biodiversity (e.g. Manning et al. 2015).
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Affiliation(s)
- Juliane Vogt
- Technische Universität München, Terrestrial Ecology Research Group, School of Life Sciences Weihenstephan, Freising, Germany Technische Universität München, Terrestrial Ecology Research Group, School of Life Sciences Weihenstephan Freising Germany
| | - Valentin H Klaus
- Westfälische Wilhelms-Universität, Institute of Landscape Ecology, Münster, Germany Westfälische Wilhelms-Universität, Institute of Landscape Ecology Münster Germany.,ETH Zürich, Institute of Agricultural Sciences, Zürich, Switzerland ETH Zürich, Institute of Agricultural Sciences Zürich Switzerland
| | - Steffen Both
- Technische Universität München, Terrestrial Ecology Research Group, School of Life Sciences Weihenstephan, Fresing, Germany Technische Universität München, Terrestrial Ecology Research Group, School of Life Sciences Weihenstephan Fresing Germany.,Martin-Luther-Universität Halle-Wittenberg, Institut für Agrar- und Ernährungswissenschaften, Halle, Germany Martin-Luther-Universität Halle-Wittenberg, Institut für Agrar- und Ernährungswissenschaften Halle Germany
| | - Cornelia Fürstenau
- Friedrich Schiller Universität Jena, Institute for Computer Science, Heinz Nixdorf Chair for Distributed Information Systems, Jena, Germany Friedrich Schiller Universität Jena, Institute for Computer Science, Heinz Nixdorf Chair for Distributed Information Systems Jena Germany
| | - Sonja Gockel
- Friedrich Schiller Universität Jena, Institute of Ecology, Jena, Germany Friedrich Schiller Universität Jena, Institute of Ecology Jena Germany.,ThüringenForst, Forstliches Forschungs- und Kompetenzzentrum Gotha, Gotha, Germany ThüringenForst, Forstliches Forschungs- und Kompetenzzentrum Gotha Gotha Germany
| | - Martin M Gossner
- Technische Universität München, Terrestrial Ecology Research Group, School of Life Sciences Weihenstephan, Freising, Germany Technische Universität München, Terrestrial Ecology Research Group, School of Life Sciences Weihenstephan Freising Germany.,Swiss Federal Research Institute WSL, Forest Entomology, Birmensdorf, Switzerland Swiss Federal Research Institute WSL, Forest Entomology Birmensdorf Switzerland
| | - Johannes Heinze
- Universität Potsdam, Biodiversity Research/Systematic Botany, Institute of Biochemistry and Biology, Potsdam, Germany Universität Potsdam, Biodiversity Research/Systematic Botany, Institute of Biochemistry and Biology Potsdam Germany
| | - Andreas Hemp
- University of Bayreuth, Department of Plant Systematics, Bayreuth, Germany University of Bayreuth, Department of Plant Systematics Bayreuth Germany
| | - Nobert Hölzel
- Westfälische Wilhelms-Universität, Institute of Landscape Ecology, Münster, Germany Westfälische Wilhelms-Universität, Institute of Landscape Ecology Münster Germany
| | - Kirsten Jung
- University of Ulm, Institute of Evolutionary Ecology, Ulm, Germany University of Ulm, Institute of Evolutionary Ecology Ulm Germany
| | - Till Kleinebecker
- Westfälische Wilhelms-Universität, nstitute of Landscape Ecology, Münster, Germany Westfälische Wilhelms-Universität, nstitute of Landscape Ecology Münster Germany.,Justus-Liebig-Universität Gießen, Institute of Landscape Ecology and Resource Management, Gießen, Germany Justus-Liebig-Universität Gießen, Institute of Landscape Ecology and Resource Management Gießen Germany
| | - Ralf Lauterbach
- University of Ulm, Institute of Evolutionary Ecology, Ulm, Germany University of Ulm, Institute of Evolutionary Ecology Ulm Germany
| | - Katrin Lorenzen
- Technische Universität München, Terrestrial Ecology Research Group, School of Life Sciences Weihenstephan, Freising, Germany Technische Universität München, Terrestrial Ecology Research Group, School of Life Sciences Weihenstephan Freising Germany
| | - Andreas Ostrowski
- Friedrich Schiller Universität Jena, Institute for Computer Science, Heinz Nixdorf Chair for Distributed Information Systems, Jena, Germany Friedrich Schiller Universität Jena, Institute for Computer Science, Heinz Nixdorf Chair for Distributed Information Systems Jena Germany
| | - Niclas Otto
- Technische Universität München, Terrestrial Ecology Research Group, School of Life Sciences Weihenstephan, Freising, Germany Technische Universität München, Terrestrial Ecology Research Group, School of Life Sciences Weihenstephan Freising Germany
| | - Daniel Prati
- University of Bern, Institute of Plant Science, Department of Biology, Bern, Switzerland University of Bern, Institute of Plant Science, Department of Biology Bern Switzerland
| | - Swen Renner
- University of Natural Resources and Life Sciences BOKU, Institute of Zoology, Vienna, Austria University of Natural Resources and Life Sciences BOKU, Institute of Zoology Vienna Austria
| | - Uta Schumacher
- Senckenberg Gesellschaft für Naturforschung, Biodiversity and Climate Research Centre BiK-F, Frankfurt, Germany Senckenberg Gesellschaft für Naturforschung, Biodiversity and Climate Research Centre BiK-F Frankfurt Germany
| | - Sebastian Seibold
- Technische Universität München, Terrestrial Ecology Research Group, School of Life Sciences Weihenstephan, Freising, Germany Technische Universität München, Terrestrial Ecology Research Group, School of Life Sciences Weihenstephan Freising Germany
| | - Nadja Simons
- Technische Universität München, Terrestrial Ecology Research Group, School of Life Sciences Weihenstephan, Freising, Germany Technische Universität München, Terrestrial Ecology Research Group, School of Life Sciences Weihenstephan Freising Germany.,University Darmstadt, Ecological Networks, Darmstadt, Germany University Darmstadt, Ecological Networks Darmstadt Germany
| | - Iris Steitz
- University of Ulm, Institute of Evolutionary Ecology, Ulm, Germany University of Ulm, Institute of Evolutionary Ecology Ulm Germany
| | - Miriam Teuscher
- Senckenberg Gesellschaft für Naturforschung, Biodiversity and Climate Research Centre BiK-F, Frankfurt, Germany Senckenberg Gesellschaft für Naturforschung, Biodiversity and Climate Research Centre BiK-F Frankfurt Germany
| | - Jan Thiele
- Johann Heinrich von Thünen Institute for Biodiversity, Braunschweig, Germany Johann Heinrich von Thünen Institute for Biodiversity Braunschweig Germany
| | - Sandra Weithmann
- University of Ulm, Institute of Evolutionary Ecology, Ulm, Germany University of Ulm, Institute of Evolutionary Ecology Ulm Germany
| | - Konstans Wells
- The University of Adelaide, Department of Biosciences, Adelaide, Australia The University of Adelaide, Department of Biosciences Adelaide Australia.,University of Ulm, Institute of Evolutionary Ecology, Ulm, Georgia University of Ulm, Institute of Evolutionary Ecology Ulm Georgia
| | - Kerstin Wiesner
- Technische Universität München, Terrestrial Ecology Research Group, School of Life Sciences Weihenstephan, Freising, Germany Technische Universität München, Terrestrial Ecology Research Group, School of Life Sciences Weihenstephan Freising Germany
| | - Manfred Ayasse
- University of Ulm, Institute of Evolutionary Ecology, Ulm, Germany University of Ulm, Institute of Evolutionary Ecology Ulm Germany
| | - Nico Blüthgen
- University Darmstadt, Ecological Networks, Darmstadt, Germany University Darmstadt, Ecological Networks Darmstadt Germany
| | - Markus Fischer
- Universität Bern, Institute of Plant Science, Department of Biology, Bern, Germany Universität Bern, Institute of Plant Science, Department of Biology Bern Germany.,Senckenberg Gesellschaft für Naturforschung, Biodiversity and Climate Research Centre BiK-F, Frankfurt, Germany Senckenberg Gesellschaft für Naturforschung, Biodiversity and Climate Research Centre BiK-F Frankfurt Germany
| | - Wolfgang W Weisser
- Technische Universität München, Terrestrial Ecology Research Group, School of Life Sciences Weihenstephan, Freising, Germany Technische Universität München, Terrestrial Ecology Research Group, School of Life Sciences Weihenstephan Freising Germany
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Choinski K, Rocca JP, Torabi J, Lorenzen K, Yongue C, Herbert ME, Block T, Chokechanachaisakul A, Kamal L, Kinkhabwala M, Graham JA. The Pancreas Can Take the Cold: Lower Waitlist Times Through Importation. Transplant Proc 2017; 49:2305-2309. [PMID: 29198666 DOI: 10.1016/j.transproceed.2017.10.006] [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: 10/18/2022]
Abstract
BACKGROUND Our center has used a strategy of pancreas importation owing to long regional waitlist times. Here we assess the clinical outcomes and financial considerations of this strategy. METHODS This was a retrospective observational cohort study of patients who received a pancreas transplant at Montefiore Medical Center (MMC) from 2014 to 2017 (n = 28). Clinical parameters, including hemoglobin A1c and complications, were analyzed. The cohort was compared with United Network for Organ Sharing (UNOS) Region 9 with the use of the UNOS/Organ Procurement and Transplantation Network database. Cost analysis of length of stay (LOS), standard acquisition (SAC) fees, and transportation was performed with the use of internal financial data. RESULTS Pancreas importation resulted in significantly shorter simultaneous pancreas kidney transplant waitlist times compared with Region 9: 518 days vs 1001 days (P = .038). In addition, postoperative complications and 1-year HbA1c did not differ between groups: local 6.30% vs import 6.17% (P = .87). Patients receiving local pancreata stayed an average of 9.2 days compared with 11 days for the import group (P = .36). As such, pancreas importation was associated with higher mean charges ($445,968) compared with local pancreas recipients ($325,470). CONCLUSIONS Long waitlist times in Region 9 have encouraged our center's adoption of pancreas importation to address the needs of our patient population. This practice has resulted in a reduction of waitlist times by an average of 483 days. Understandably, centers have long been wary of importation owing to perceived risk in clinical outcomes. In our single-center experience, we have demonstrated equivalent postoperative glucose control and graft survival. Importantly, there does appear to be increased costs associated with importation, which are mainly driven by LOS. Curiously, importation from regions with lower SAC fees has the potential to offset costs related to transportation expenses. Notwithstanding these findings, pancreas importation does have the potential to lessen the financial societal burden through reduction in waitlist times.
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Affiliation(s)
- K Choinski
- Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, New York; Albert Einstein College of Medicine, Bronx, New York
| | - J P Rocca
- Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, New York; Albert Einstein College of Medicine, Bronx, New York
| | - J Torabi
- Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, New York; Albert Einstein College of Medicine, Bronx, New York
| | - K Lorenzen
- Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, New York
| | - C Yongue
- Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, New York; Case Western Reserve University School of Medicine, Cleveland, Ohio
| | - M E Herbert
- Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, New York
| | - T Block
- Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, New York
| | - A Chokechanachaisakul
- Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, New York; Albert Einstein College of Medicine, Bronx, New York
| | - L Kamal
- Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, New York; Albert Einstein College of Medicine, Bronx, New York
| | - M Kinkhabwala
- Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, New York; Albert Einstein College of Medicine, Bronx, New York
| | - J A Graham
- Montefiore-Einstein Center for Transplantation, Montefiore Medical Center, Bronx, New York; Albert Einstein College of Medicine, Bronx, New York.
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Overbeck GE, Vélez-Martin E, Scarano FR, Lewinsohn TM, Fonseca CR, Meyer ST, Müller SC, Ceotto P, Dadalt L, Durigan G, Ganade G, Gossner MM, Guadagnin DL, Lorenzen K, Jacobi CM, Weisser WW, Pillar VD. Conservation in Brazil needs to include non-forest ecosystems. DIVERS DISTRIB 2015. [DOI: 10.1111/ddi.12380] [Citation(s) in RCA: 225] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Affiliation(s)
| | | | - Fabio R. Scarano
- Fundação Brasileira para o Desenvolvimento Sustentável; Rio de Janeiro RJ 22610-180 Brazil
- Universidade Federal do Rio de Janeiro; Rio de Janeiro RJ 21941-970 Brazil
| | | | - Carlos R. Fonseca
- Universidade Federal do Rio Grande do Norte; Natal RN 59072-970 Brazil
| | | | - Sandra C. Müller
- Universidade Federal do Rio Grande do Sul; Porto Alegre RS 91501-970 Brazil
| | - Paula Ceotto
- Conservation International; Rio de Janeiro RJ 20040-006 Brazil
| | - Letícia Dadalt
- Universidade Federal do Rio Grande do Sul; Porto Alegre RS 91501-970 Brazil
| | | | - Gislene Ganade
- Universidade Federal do Rio Grande do Norte; Natal RN 59072-970 Brazil
| | | | | | | | - Claudia M. Jacobi
- Universidade Federal de Minas Gerais; Belo Horizonte MG 31270-901 Brazil
| | | | - Valério D. Pillar
- Universidade Federal do Rio Grande do Sul; Porto Alegre RS 91501-970 Brazil
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Camp EV, Lorenzen K, Ahrens RNM, Allen MS. Stock enhancement to address multiple recreational fisheries objectives: an integrated model applied to red drum Sciaenops ocellatus in Florida. J Fish Biol 2014; 85:1868-1889. [PMID: 25469950 DOI: 10.1111/jfb.12548] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 09/23/2014] [Indexed: 06/04/2023]
Abstract
An integrated socioecological model was developed to evaluate the potential for stock enhancement with hatchery fishes to achieve socioeconomic and conservation objectives in recreational fisheries. As a case study, this model was applied to the red drum Sciaenops ocellatus recreational fishery in the Tampa Bay estuary, Florida, U.S.A. The results suggest that stocking of juvenile fish larger than the size at which the strongest density dependence in mortality occurs can help increase angler satisfaction and total fishing effort (socioeconomic objectives) but are likely to result in decreases to the abundance of wild fishes (a conservation objective). Stocking of small juveniles that are susceptible to density-dependent mortality after release does not achieve socioeconomic objectives (or only at excessive cost) but still leads to a reduction of wild fish abundance. The intensity and type of socioeconomic gains depended on assumptions of dynamic angler-effort responses and importance of catch-related satisfaction, with greatest gains possible if aggregate effort is responsive to increases in abundance and satisfaction that are greatly related to catch rates. These results emphasize the view of stock enhancement, not as a panacea but rather as a management tool with inherent costs that is best applied to recreational fisheries under certain conditions.
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Affiliation(s)
- E V Camp
- School of Forest Resources and Conservation, Fisheries and Aquatic Sciences Program, University of Florida, 7922 NW 71st Street, Gainesville, FL 32605, U.S.A
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Garlock TM, Monk CT, Lorenzen K, Matthews MD, St Mary CM. Effects of hatchery rearing on Florida largemouth bass Micropterus floridanus resource allocation and performance under semi-natural conditions. J Fish Biol 2014; 85:1830-1842. [PMID: 25257181 DOI: 10.1111/jfb.12514] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 04/15/2014] [Accepted: 07/24/2014] [Indexed: 06/03/2023]
Abstract
This study examined the growth, activity, metabolism and post-release survival of three groups of Florida largemouth bass Micropterus floridanus: wild-caught fish, hatchery fish reared according to standard practice (hatchery standard) and hatchery fish reared under reduced and unpredictable food provisioning (hatchery manipulated). Hatchery-standard fish differed from wild-caught fish in all measured variables, including survival in semi-natural ponds. Hatchery-standard and hatchery-manipulated fish showed higher activity levels, faster growth and lower standard metabolic rates than wild-caught fish in the hatchery. Fish reared under the manipulated feeding regime showed increased metabolic rates and increased post-release growth, similar to wild-caught fish. Their activity levels and post-release survival, however, remained similar to those of hatchery-standard fish. Activity was negatively correlated with post-release survival and failure of the feed manipulation to reduce activity may have contributed to its failure to improve post-release survival. Activity and post-release survival may be influenced by characteristics of the rearing environment other than the feeding regime, such as stock density or water flow rates.
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Affiliation(s)
- T M Garlock
- Fisheries and Aquatic Sciences Program, School of Forest Resources and Conservation, University of Florida, P. O. Box 110410, Gainesville, FL 32611, U.S.A
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Lorenzen K. Understanding and managing enhancements: why fisheries scientists should care. J Fish Biol 2014; 85:1807-29. [PMID: 25469948 DOI: 10.1111/jfb.12573] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 10/03/2014] [Indexed: 05/07/2023]
Abstract
Fisheries enhancements are a set of management approaches involving the use of aquaculture technologies to enhance or restore fisheries in natural ecosystems. Enhancements are widely used in inland and coastal fisheries, but have received limited attention from fisheries scientists. This paper sets out 10 reasons why fisheries scientists should care about understanding and managing enhancements. (1) Enhancements happen, driven mostly by resource users and managers rather than scientists. (2) Enhancements create complex fisheries systems that encompass and integrate everything fisheries stakeholders can practically manage. (3) Enhancements emerge in fisheries where the scope for technical and governance control is high, and they synergistically reinforce both. (4) Successful enhancements expand management options and achievable outcomes. (5) Many enhancements fail or do ecological harm but persist regardless. (6) Effective science engagement is crucial to developing beneficial enhancements and preventing harmful ones. (7) Good scientific guidance is available to aid development or reform of enhancements but is not widely applied. (8) Enhancement research advances, integrates and unifies the fisheries sciences. (9) Enhancements provide unique opportunities for learning about natural fish populations and fisheries. (10) Needs, opportunities and incentives for enhancements are bound to increase.
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Affiliation(s)
- K Lorenzen
- Fisheries and Aquatic Sciences, School of Forest Resources and Conservation, University of Florida, 7922 NW 71st St., Gainesville, FL, 32653, U.S.A
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Edwards CTT, Hillary RM, Levontin P, Blanchard JL, Lorenzen K. Fisheries Assessment and Management: A Synthesis of Common Approaches with Special Reference to Deepwater and Data-Poor Stocks. ACTA ACUST UNITED AC 2012. [DOI: 10.1080/10641262.2012.683210] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Rosenberg N, Bech P, Lorenzen K, Mellergård M, Rasmussen S, Rafaelsen OJ, Rosenberg R. Personality Disorder in Panic Disorder Patients. ACTA ACUST UNITED AC 2009. [DOI: 10.3109/08039488609096508] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Neuhaus T, Ko YD, Lorenzen K, Fronhoffs S, Harth V, Bröde P, Vetter H, Bolt HM, Pesch B, Brüning T. Association of cytochrome P450 2E1 polymorphisms and head and neck squamous cell cancer. Toxicol Lett 2004; 151:273-82. [PMID: 15177663 DOI: 10.1016/j.toxlet.2003.09.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [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: 08/20/2003] [Revised: 09/02/2003] [Accepted: 09/02/2003] [Indexed: 10/26/2022]
Abstract
The development of head and neck squamous cell cancer (HNSCC) is known to be strongly associated with tobacco use. One of the main enzymes for bioactivation of tobacco-related substances is the cytochrome 450 (CYP)2E1, of which different genetic variants are described. Analyzing a correlation between certain neoplasia and alteration of the CYP2E1 gene, most studies focus on the polymorphisms -1053C>T and 7632T>A, but recently another polymorphism, named -71G>T, with enhanced transcriptional activity, has been identified. In the current case-control study we investigate the putative association of the mentioned CYP2E1 polymorphisms on the risk of HNSCC. Comparing 312 German individuals with HNSCC to 299 controls we found a significantly enhanced risk for the development of that neoplasia in smoking carriers of -71G>T heterozygosity, while in -1053C>T and 7632T>A polymorphisms a corresponding correlation was absent. Since a coincidence of an aberrant p53 gene and CYP2E1 mutations has been described, we choose a subgroup of 140 patients with HNSCC for analyzing an association of mutations in these two genes. However, no such association could be found in either of the mentioned polymorphisms. Further studies have to focus on the -71G>T polymorphism and its possible linkage to cancers, in which smoking is a known risk-factor, as well as its functional relevance concerning the bioactivation of tobacco-related substances.
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Affiliation(s)
- Thomas Neuhaus
- Medizinische Universitäts-Poliklinik Bonn, Universität Bonn, Wilhelmstr. 35-37, D-53111 Bonn, Germany
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Reisen WK, Eldridge BE, Scott TW, Gutierrez A, Takahashi R, Lorenzen K, DeBenedictis J, Boyce K, Swartzell R. Comparison of dry ice-baited centers for disease control and New Jersey light traps for measuring mosquito abundance in California. J Am Mosq Control Assoc 2002; 18:158-163. [PMID: 12322936] [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] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Mosquito catch in New Jersy light traps (NJLTs) has been declining in recent years, compromising the sensitivity of the California mosquito monitoring program. Centers for Disease Control traps (CDCTs) operated without light and augmented with dry ice have been considered for replacement or augmentation. To provide information on comparative sensitivity and ability to measure abundance over time and space, catch of mosquitoes in NJLTs was compared to catch in CDCTs operated concurrently at 8-10 sites within the Coachella Valley, Kern, San Joaquin County, and Sacramento-Yolo Mosquito and Vector Control Districts. The CDCTs always collected more female mosquitoes than did NJLTs; however, differences in sensitivity varied markedly over time and space precluding the calculation of a universal conversion factor. Regressions of the catch of female Culex tarsalis in CDCTs as a function of catch in NJLTs within districts indicated that the slopes varied markedly, again precluding the derivation of a universal function. Therefore, we recommend that mosquito surveillance programs replace or supplement NJLTs with systematically operated CDCTs to enhance sampling sensitivity for females of most mosquito species. However, both trap types should be operated concurrently at several sites within each district to derive regression functions to convert historical relative abundance data from NJLTs to equivalent counts in CDCTs for retrospective analyses.
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Affiliation(s)
- W K Reisen
- Center for Vectorborne Diseases, School of Veterinary Medicine, University of California, Davis 95616, USA
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14
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Brüning T, Abel J, Koch B, Lorenzen K, Harth V, Donat S, Sachinidis A, Vetter H, Bolt HM, Ko Y. Real-time PCR-analysis of the cytochrome P450 1B1 codon 432-polymorphism. Arch Toxicol 1999; 73:427-30. [PMID: 10650913 DOI: 10.1007/s002040050631] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The aim of the present study was to develop and validate a rapid assay for genotyping of CYP1B1 codon 432-polymorphism. The described method is a single tube assay and combines both rapid-cycle polymerase chain reaction (PCR) with real-time monitoring by amplification and generation of the melting profiles of an allele-specific fluorescent probe. With this method 300 samples were analysed from healthy, unrelated Germans. Genotype frequency determined for the mutated allele CYP1B1*2 was 0.40. The results show that genotyping of CYP1B1 codon 432-polymorphism with a real-time fluorescence PCR method is a rapid and reliable assay for the analysis of large numbers of samples.
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Affiliation(s)
- T Brüning
- Institut für Arbeitsphysiologie an der Universität Dortmund, Germany
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15
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Abstract
The three protoilludanes radulone A (1), radulone B (2) and radudiol (3), the illudalane radulactone (4) and the illudane radulol (5) were isolated from the extracts of the culture fluids of the basidiomycete Radulomyces confluens. The structures of the five new compounds were determined by spectroscopic techniques. Radulone A (1) is a potent inhibitor of human and bovine platelet aggregation stimulated by different agonists, inhibiting preferentially the aggregation of human platelets induced by ADP with an IC50 value of 2 microM. In addition 1 exhibits cytotoxic and antimicrobial activities. The other four compounds exhibited weak antimicrobial and cytotoxic activity.
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Affiliation(s)
- K Fabian
- Lehrbereich Biotechnologie der Universität, Kaiserslautern, Germany
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16
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Abstract
Among the sources of bioactive metabolites, less intensively investigated organisms like the higher fungi seem to hold an excellent promise for new structures with interesting biological activities. In the last decades interesting compounds of different biogenetic origin with antibacterial, antifungal, phytotoxic, nematocidal, cytostatic, antiviral, and other pharmacological activities were isolated from basidiomycetes. In the following review we will concentrate on metabolites isolated from submerged cultures.
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Affiliation(s)
- K. Lorenzen
- Department of Biotechnology, University of Kaiserslautern, 67663 Kaiserslautern, Germany
| | - T. Anke
- Department of Biotechnology, University of Kaiserslautern, 67663 Kaiserslautern, Germany
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17
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Eldridge BF, Gimnig JE, Lorenzen K, Nixon KC, Reeves WC. The distribution of species of the Aedes increpitus complex in the western United States. J Am Mosq Control Assoc 1998; 14:173-177. [PMID: 9673918] [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] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Maps of the California and Oregon distribution of members of the Aedes increpitus complex (Aedes clivis Lanzaro and Eldridge, Aedes increpitus Dyar, and Aedes washinoi Lanzaro and Eldridge) are presented that are based on collections reported by Lanzaro and Eldridge (1992) and new collections from various sites, many in the Central Valley of California. Analysis of individually reared specimens by polyacrylamide gel electrophoresis and conventional morphological methods confirmed the diagnostic value of isozymes for these species and of larval head hairs for distinguishing Ae. clivis from other members of the complex. Other larval characters and pupal hairs did not appear to have diagnostic value. An additional site was discovered where apparent hybrids between Ae. washinoi and Ae. increpitus occur, and a single possible hybrid between Ae. washinoi and Ae. clivis was found at a site where these species had previously been reported to occur sympatrically.
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Affiliation(s)
- B F Eldridge
- Department of Entomology, University of California, Davis 95616, USA
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18
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Abstract
11-Hydroxy-4-methyl-2,4,6-dodecatrienoic acid was isolated from fermentations of the Mucor species, strain KL 94-92 aq. The compound exhibits cytotoxic activity and the structural elucidation, as well as the biological properties of the new compound, are described.
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19
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Lorenzen K, Anke T, Konetschny-Rapp S, Scheuer W. 5-hydroxy-3-vinyl-2(5H)-furanone--a new inhibitor of human synovial phospholipase A2 and platelet aggregation from fermentations of a Calyptella species (basidiomycetes). Z NATURFORSCH C 1995; 50:403-9. [PMID: 7546033] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
5-Hydroxy-3-vinyl-2(5H)-furanone, a potent and selective inhibitor of human synovial phospholipase A2 was isolated from fermentations of a Calyptella species. Its structure as identified by spectroscopic methods is identical to PA 147, an antibiotic previously isolated from a streptomycete. 5-hydroxy-3-vinyl-2(5H)-furanone inhibits the aggregation of human and bovine platelets stimulated by different inducers and exhibits weak antimicrobial activities.
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Affiliation(s)
- K Lorenzen
- LB Biotechnologie der Universität, Kaiserslautern, Bundesrepublik Deutschland
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20
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Erkel G, Lorenzen K, Anke T, Velten R, Gimenez A, Steglich W. Kuehneromycins A and B, two new biological active compounds from a Tasmanian Kuehneromyces sp. (Strophariaceae, Basidiomycetes). Z NATURFORSCH C 1995; 50:1-9. [PMID: 7535532 DOI: 10.1515/znc-1995-1-202] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
In a search for new inhibitors of RNA-directed DNA-polymerases kuehneromycin A (1) was isolated from fermentations of a Tasmanian Kuehneromyces species. Its structure was elucidated by spectroscopic methods. Kuehneromycin A (1) is a non-competitive inhibitor of avian myeloblastosis virus (Ki 200 microM) and moloney murine leukemia virus (Ki 40 microM) reverse transcriptases. The second compound, kuehneromycin B (2) is a strong inhibitor of platelet aggregation stimulated with different inducers. In addition, both compounds exhibit cytotoxic and antimicrobial activities.
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Affiliation(s)
- G Erkel
- Lehrbereich Biotechnologie der Universität, Bundesrepublik, Deutschland
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21
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Lorenzen K, Anke T, Anders U, Hindermayr H, Hansske F. 14-epidihydrocochlioquinone B and 14-epicochlioquinone B, antibiotics from fermentations of the ascomycete Neobulgaria pura: structure elucidation and effects on platelet aggregation. Z NATURFORSCH C 1994; 49:312-20. [PMID: 8060456 DOI: 10.1515/znc-1994-5-606] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
14-Epicochlioquinone B (1) and 14-epidihydrocochlioquinone B (2) were isolated from submerged cultures of Neobulgaria pura (Pers. ex Fr.) Petrak. 14-Epicochlioquinone B is a potent inhibitor of human and bovine platelet aggregation stimulated by different inducers. 14-Epidihydrocochlioquinone B does not inhibit the aggregation of platelets. In addition, both 1 and 2 exhibited cytotoxic and antimicrobial activities.
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Affiliation(s)
- K Lorenzen
- LB Biotechnologie der Universität, Kaiserslautern, Bundesrepublik Deutschland
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22
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Abstract
Two inhibitors of platelet aggregation were isolated from fermentations of Panus sp. 9096. One inhibitor proved to be identical to naematolon (2), an antibiotic previously isolated by S. Backens et al. from several Hypholoma species. The other metabolite, panudial (1), is a new nordrimane (cis-annelation of the bicyclus) lacking the carbon atom in position 10 of the drimane skeleton. Panudial is a potent inhibitor of bovine and human platelet aggregation stimulated by different inducers.
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Affiliation(s)
- K Lorenzen
- LB Biotechnologie der Universität, Kaiserslautern, Bundesrepublik Deutschland
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23
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Linderkamp O, Betke K, Fendel H, Klemm J, Lorenzen K, Riegel KP. Tc-99m-labeled red blood cells for the measurement of red cell mass in newborn infants: concise communication. J Nucl Med 1980; 21:637-40. [PMID: 7391836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
In vitro and in vivo investigations were performed to examine the binding of Tc-99m to neonatal red blood cells (RBC). Labeling efficiency was about 90%, and unbound Tc-99m less than 3% after one washing, in premature and full-term newborns and in children. Thus presence of high percentages of fetal hemoglobin (Hb F) did not influence the labeling of RBCs with Tc-99m. RBCs of 11 newborns were hemolysed and the distribution of Tc-99m on RBC components was analyzed. Although Hb F percentage averaged (60.0 +/- 8.1)% (s.d.), only (11.9 +/- 3.7)% of Tc-99m was bound by Hb F, whereas (45.0 +/- 6.1)% was associated with Hb A. RBC membranes bound (13.7 +/- 4.3)% and (29.3 +/- 4.0)% were found unbound in hemolysates. These results indicate that Tc-99m preferentially binds to beta chains. In vivo equilibration of Tc-99m RBCs and of albumin labeled with Evans blue was investigated in five newborn infants. Tc-99m RBCs were stable in each case during the first hour after injection. Elution of Tc-99m from RBCs was (3.4 +/- 1.5)% per hour. Body-to-venous hematocrit ratio averaged 0.86 +/- 0.03.
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25
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