LIVIVO - Das Suchportal für Lebenswissenschaften

switch to English language
Erweiterte Suche

Suchergebnis

Treffer 1 - 10 von insgesamt 69

Suchoptionen

  1. Artikel ; Online: Diffuse Large B-Cell Lymphoma and Related Entities.

    Ernst, Moritz / Dührsen, Ulrich / Hellwig, Dirk / Lenz, Georg / Skoetz, Nicole / Borchmann, Peter

    Deutsches Arzteblatt international

    2023  Band 120, Heft 17, Seite(n) 289–296

    Abstract: Background: Diffuse large B-cell lymphoma (DLBCL) is the most common malignant B-cell neoplasm, with an incidence of 5.6 per 100 000 persons per year and a mean age of onset of approximately 65 years. It is an aggressive type of non-Hodgkin's lymphoma ... ...

    Abstract Background: Diffuse large B-cell lymphoma (DLBCL) is the most common malignant B-cell neoplasm, with an incidence of 5.6 per 100 000 persons per year and a mean age of onset of approximately 65 years. It is an aggressive type of non-Hodgkin's lymphoma requiring urgent treatment with curative intent. Evidence-based guidelines have not been available to date.
    Methods: For this first international evidence-based DLBCL-specific guideline, various systematic literature searches were performed. 5 systematic reviews, 21 randomized controlled trials (RCTs), and 36 non-randomized studies were used to formulate 42 recommendations. 142 were formulated on the basis of expert consensus. All recommendations were approved in a structured consensus-finding process.
    Results: For staging, combined positron emission tomography and computed tomography (PET/CT) should be performed (evidence: a prospective registry study). For all patients with a new diagnosis of DLBCL and without contraindications, R-CHOP based immunochemotherapy (rituximab, cyclophosphamide, doxorubicin, vincristine, prednisone) should be initiated with curative intent (evidence: RCTs). The individual treatment strategy is tailored to the patient's age and risk constellation. Once immunochemotherapy has been completed, PET/CT should be performed again to check for remission. Patients with PET-positive residual disease that is amenable to radiotherapy should be treated with consolidating irradiation (evidence: retrospective cohort study).
    Conclusion: This clinical practice guideline on the diagnosis, treatment, and followup of patients with DLBCL and related entities provides a standardized clinical management approach, identifies areas where improvement would be desirable, and can serve as a basis for the development of further studies.
    Mesh-Begriff(e) Aged ; Humans ; Antibodies, Monoclonal, Murine-Derived/therapeutic use ; Antineoplastic Combined Chemotherapy Protocols/therapeutic use ; Cyclophosphamide/therapeutic use ; Doxorubicin/therapeutic use ; Lymphoma, Large B-Cell, Diffuse/therapy ; Lymphoma, Large B-Cell, Diffuse/drug therapy ; Prednisone/therapeutic use ; Rituximab/therapeutic use ; Vincristine/therapeutic use
    Chemische Substanzen Antibodies, Monoclonal, Murine-Derived ; Cyclophosphamide (8N3DW7272P) ; Doxorubicin (80168379AG) ; Prednisone (VB0R961HZT) ; Rituximab (4F4X42SYQ6) ; Vincristine (5J49Q6B70F)
    Sprache Englisch
    Erscheinungsdatum 2023-03-21
    Erscheinungsland Germany
    Dokumenttyp Journal Article ; Practice Guideline
    ZDB-ID 2406159-1
    ISSN 1866-0452 ; 1866-0452
    ISSN (online) 1866-0452
    ISSN 1866-0452
    DOI 10.3238/arztebl.m2023.0035
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  2. Artikel ; Online: Response to the letter to the editor from Carrillo and Danneels.

    Pirow, Ralph / Hellwig, Nicole / Huhse, Bettina / Hutzler, Christoph / Luch, Andreas

    Critical reviews in toxicology

    2020  Band 50, Heft 3, Seite(n) 276–277

    Mesh-Begriff(e) Cosmetics ; Mineral Oil
    Chemische Substanzen Cosmetics ; Mineral Oil (8020-83-5)
    Sprache Englisch
    Erscheinungsdatum 2020-06-01
    Erscheinungsland England
    Dokumenttyp Letter ; Comment
    ZDB-ID 1097071-x
    ISSN 1547-6898 ; 1040-8444
    ISSN (online) 1547-6898
    ISSN 1040-8444
    DOI 10.1080/10408444.2020.1749831
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  3. Artikel: Influence of Probiotics on the Salivary Microflora Oral Streptococci and Their Integration into Oral Biofilm.

    Arweiler, Nicole B / Auschill, Thorsten M / Heumann, Christian / Hellwig, Elmar / Al-Ahmad, Ali

    Antibiotics (Basel, Switzerland)

    2020  Band 9, Heft 11

    Abstract: Probiotics' ability to integrate into dental biofilms is not yet clarified. The aim of this trial was to detect probiotic bacteria from probiotic products in dental biofilm and saliva during and after intake. In this parallel, randomized clinical trial, ... ...

    Abstract Probiotics' ability to integrate into dental biofilms is not yet clarified. The aim of this trial was to detect probiotic bacteria from probiotic products in dental biofilm and saliva during and after intake. In this parallel, randomized clinical trial, 39 subjects wore customized appliances to build up intra-oral biofilms (72-h periods). The trial was divided into screening (S) to determine baseline biofilm flora, intervention (I), and wash out (WO). During I (28 days), subjects consumed a product containing (a)
    Sprache Englisch
    Erscheinungsdatum 2020-11-13
    Erscheinungsland Switzerland
    Dokumenttyp Journal Article
    ZDB-ID 2681345-2
    ISSN 2079-6382
    ISSN 2079-6382
    DOI 10.3390/antibiotics9110803
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  4. Artikel ; Online: Safety assessment of mixtures of 1,9-nonanediamine (NMDA) and 2-methyl-1,8-octanediamine (MODA), for use in food contact materials.

    Lambré, Claude / Barat Baviera, José Manuel / Bolognesi, Claudia / Chesson, Andrew / Cocconcelli, Pier Sandro / Crebelli, Riccardo / Gott, David Michael / Grob, Konrad / Lampi, Evgenia / Mengelers, Marcel / Mortensen, Alicja / Steffensen, Inger-Lise / Tlustos, Christina / Van Loveren, Henk / Vernis, Laurence / Zorn, Holger / Cariou, Ronan / Castle, Laurence / Di Consiglio, Emma /
    Franz, Roland / Hellwig, Nicole / Milana, Maria Rosaria / Barthélémy, Eric / Comandella, Daniele / Rivière, Gilles

    EFSA journal. European Food Safety Authority

    2024  Band 22, Heft 4, Seite(n) e8703

    Abstract: The EFSA Panel on Food Contact Materials, Enzymes and Processing Aids (CEP) assessed the safety of mixtures of 1,9-nonanediamine (NMDA) and 2-methyl-1,8-octanediamine (MODA) when used to produce polyamide food contact materials for contact with all food ... ...

    Abstract The EFSA Panel on Food Contact Materials, Enzymes and Processing Aids (CEP) assessed the safety of mixtures of 1,9-nonanediamine (NMDA) and 2-methyl-1,8-octanediamine (MODA) when used to produce polyamide food contact materials for contact with all food types for long-term storage at room temperature and below, including heating up to 121°C for up to 2 h. The polyamide material is also intended to be used for repeated use up to 121°C with short contact (up to 30 min). The polymer typically contains ■■■■■ of a low molecular weight fraction (LMWF, < 1000 Da). The specific migration was measured with polyamide samples in a set of migration tests with 3% acetic acid and 10% ethanol. NMDA and MODA were not detected at ■■■■■, respectively. The specific migration of the LMWF consisting of NMDA/MODA-related species was up to ■■■■■. The overall migration in olive oil was below the detection limit (3 mg/dm
    Sprache Englisch
    Erscheinungsdatum 2024-04-24
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 2540248-1
    ISSN 1831-4732 ; 1831-4732
    ISSN (online) 1831-4732
    ISSN 1831-4732
    DOI 10.2903/j.efsa.2024.8703
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  5. Buch: Fluch und Segen des Bauhausstils

    Thießen, Friedrich / Günther, Tony / Hellwig, Sabine / Küster, Nicole

    Blessing and curse of Bauhaus style

    (WWDP / Technische Universität Chemnitz, Fakultät für Wirtschaftswissenschaften ; 130/2017)

    2017  

    Verfasserangabe Friedrich Thießen, Tony Günther, Sabine Hellwig, Nicole Küster
    Serientitel WWDP / Technische Universität Chemnitz, Fakultät für Wirtschaftswissenschaften ; 130/2017
    Schlagwörter Wohnungsbau ; Architektur ; Konsumentenpräferenzen ; Deutschland
    Sprache Deutsch
    Umfang 25 Seiten, Illustrationen, 30 cm
    Verlag Technische Universität Chemnitz, Fakultät für Wirtschaftswissenschaften
    Erscheinungsort Chemnitz
    Dokumenttyp Buch
    Anmerkung Kurzfassung in deutscher und englischer Sprache ; Erscheint auch als Online-Ausgabe ; In Ringbindung ; Literaturverzeichnis: Seite 24-25
    Datenquelle ECONomics Information System

    Zusatzmaterialien

    Kategorien

  6. Buch ; Online ; Dissertation / Habilitation: Protonenleitfähigkeit von TRPV1 und Multimerisierung von TRPV-Kanaluntereinheiten

    Hellwig, Nicole

    2005  

    Verfasserangabe vorgelegt von Nicole Hellwig
    Sprache Deutsch
    Umfang Online-Ressource
    Dokumenttyp Buch ; Online ; Dissertation / Habilitation
    Dissertation / Habilitation Freie Univ., Diss--Berlin, 2005
    Anmerkung Dateiformat: zip, Dateien im PDF-Format
    Datenquelle Ehemaliges Sondersammelgebiet Küsten- und Hochseefischerei

    Zusatzmaterialien

    Kategorien

  7. Artikel ; Online: Safety assessment of 'waxes, paraffinic, refined, derived from petroleum-based or synthetic hydrocarbon feedstock, low viscosity' for use in food contact materials.

    Lambré, Claude / Barat Baviera, José Manuel / Bolognesi, Claudia / Chesson, Andrew / Cocconcelli, Pier Sandro / Crebelli, Riccardo / Gott, David Michael / Grob, Konrad / Lampi, Evgenia / Mengelers, Marcel / Mortensen, Alicja / Steffensen, Inger-Lise / Tlustos, Christina / Van Loveren, Henk / Vernis, Laurence / Zorn, Holger / Castle, Laurence / Di Consiglio, Emma / Franz, Roland /
    Hellwig, Nicole / Merkel, Stefan / Milana, Maria Rosaria / Barthélémy, Eric / Comandella, Daniele / Rivière, Gilles

    EFSA journal. European Food Safety Authority

    2023  Band 21, Heft 2, Seite(n) e07761

    Abstract: The EFSA Panel on Food Contact Materials, Enzymes and Processing Aids (CEP Panel) assessed the safety of the 'waxes, paraffinic, refined, derived from petroleum-based or synthetic hydrocarbon feedstock, low viscosity' (FCM No. 93), for which the uses ... ...

    Abstract The EFSA Panel on Food Contact Materials, Enzymes and Processing Aids (CEP Panel) assessed the safety of the 'waxes, paraffinic, refined, derived from petroleum-based or synthetic hydrocarbon feedstock, low viscosity' (FCM No. 93), for which the uses were requested to be extended for articles in contact with fatty foods. Migration from low-density polyethylene samples containing 1% w/w of a representative wax was tested in food simulants. In fatty food simulants, the migration of mineral oil saturated hydrocarbons (MOSH) ≤ C35 was 142 mg/kg food, exceeding the overall migration limit for plastic FCM. Mineral oil aromatic hydrocarbons (MOAH) with at least two rings are largely removed during the manufacturing process. Based on various lines of evidence, the Panel concluded that any concern for the potential presence of MOAH with two or more conjugated aromatic rings can be ruled out. Based on the genotoxicity studies and on the content of polycyclic aromatic hydrocarbons (PAHs), the substance does not raise a concern for genotoxicity. Available toxicokinetic data showed a limited accumulation of MOSH. No adverse effects were observed up to the highest tested dose of 9 g/kg body weight per day in a 90-day repeated oral toxicity study in Sprague-Dawley rats. The available results showed that FCM No. 93 is devoid of endocrine activity. The provided information on chronic toxicity and carcinogenicity was limited and inadequate to reach conclusions on these endpoints. Therefore, the CEP Panel concluded that under the intended and tested conditions of uses, the substance does not raise safety concern for the consumer if used to a level ensuring that its migration into food is no more than 5 mg/kg.
    Sprache Englisch
    Erscheinungsdatum 2023-02-01
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 2540248-1
    ISSN 1831-4732 ; 1831-4732
    ISSN (online) 1831-4732
    ISSN 1831-4732
    DOI 10.2903/j.efsa.2023.7761
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  8. Artikel ; Online: Laser induced crystallization of Co-Fe-B films.

    Almeida, Maria / Sharma, Apoorva / Matthes, Patrick / Köhler, Nicole / Busse, Sandra / Müller, Matthias / Hellwig, Olav / Horn, Alexander / Zahn, Dietrich R T / Salvan, Georgeta / Schulz, Stefan E

    Scientific reports

    2021  Band 11, Heft 1, Seite(n) 14104

    Abstract: Local crystallization of ferromagnetic layers is crucial in the successful realization of miniaturized tunneling magnetoresistance (TMR) devices. In the case of Co-Fe-B TMR devices, used most successfully so far in applications and devices, Co-Fe-B ... ...

    Abstract Local crystallization of ferromagnetic layers is crucial in the successful realization of miniaturized tunneling magnetoresistance (TMR) devices. In the case of Co-Fe-B TMR devices, used most successfully so far in applications and devices, Co-Fe-B layers are initially deposited in an amorphous state and annealed post-deposition to induce crystallization in Co-Fe, thereby increasing the device performance. In this work, first direct proof of locally triggered crystallization of 10 nm thick Co-Fe-B films by laser irradiation is provided by means of X-ray diffraction (XRD) using synchrotron radiation. A comparison with furnace annealing is performed for benchmarking purposes, covering different annealing parameters, including temperature and duration in the case of furnace annealing, as well as laser intensity and scanning speed for the laser annealing. Films of Co-Fe-B with different stoichiometry sandwiched between a Ru and a Ta or MgO layer were systematically assessed by XRD and SQUID magnetometry in order to elucidate the crystallization mechanisms. The transformation of Co-Fe-B films from amorphous to crystalline is revealed by the presence of pronounced CoFe(110) and/or CoFe(200) reflexes in the XRD θ-2θ scans, depending on the capping layer. For a certain window of parameters, comparable crystallization yields are obtained with furnace and laser annealing. Samples with an MgO capping layer required a slightly lower laser intensity to achieve equivalent Co-Fe crystallization yields, highlighting the potential of laser annealing to locally enhance the TMR ratio.
    Sprache Englisch
    Erscheinungsdatum 2021-07-08
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-021-93009-x
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  9. Artikel ; Online: Metabolization of the Advanced Glycation End Product N-ε-Carboxymethyllysine (CML) by Different Probiotic E. coli Strains.

    Hellwig, Michael / Auerbach, Christian / Müller, Nicole / Samuel, Pauline / Kammann, Sophie / Beer, Falco / Gunzer, Florian / Henle, Thomas

    Journal of agricultural and food chemistry

    2019  Band 67, Heft 7, Seite(n) 1963–1972

    Abstract: N-ε-Carboxymethyllysine (CML) is formed during glycation reactions (synonym, Maillard reaction). CML is degraded by the human colonic microbiota, but nothing is known about the formation of particular metabolites. In the present study, six probiotic E. ... ...

    Abstract N-ε-Carboxymethyllysine (CML) is formed during glycation reactions (synonym, Maillard reaction). CML is degraded by the human colonic microbiota, but nothing is known about the formation of particular metabolites. In the present study, six probiotic E. coli strains were incubated with CML in the presence or absence of oxygen in either minimal or nutrient-rich medium. CML was degraded by all strains only in the presence of oxygen. HPLC-MS/MS was applied for identification of metabolites of CML. For the first time, three bacterial metabolites of CML have been identified, namely N-carboxymethylcadaverine (CM-CAD), N-carboxymethylaminopentanoic acid (CM-APA), and the N-carboxymethyl-Δ
    Mesh-Begriff(e) Chromatography, High Pressure Liquid ; Dipeptides/metabolism ; Escherichia coli/metabolism ; Glycation End Products, Advanced/metabolism ; Humans ; Lysine/analogs & derivatives ; Lysine/metabolism ; Oxygen ; Phenotype ; Probiotics/metabolism ; Species Specificity ; Tandem Mass Spectrometry
    Chemische Substanzen Dipeptides ; Glycation End Products, Advanced ; N(6)-carboxymethyllysine (70YDX3Z2O7) ; Lysine (K3Z4F929H6) ; Oxygen (S88TT14065)
    Sprache Englisch
    Erscheinungsdatum 2019-02-12
    Erscheinungsland United States
    Dokumenttyp Journal Article
    ZDB-ID 241619-0
    ISSN 1520-5118 ; 0021-8561
    ISSN (online) 1520-5118
    ISSN 0021-8561
    DOI 10.1021/acs.jafc.8b06748
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Zusatzmaterialien

    Kategorien

  10. Buch ; Online ; Dissertation / Habilitation: Protonenleitfähigkeit von TRPV1 und Multimerisierung von TRPV-Kanaluntereinheiten

    Hellwig, Nicole [Verfasser]

    2005  

    Verfasserangabe vorgelegt von Nicole Hellwig
    Schlagwörter Medizin, Gesundheit ; Medicine, Health
    Thema/Rubrik (Code) sg610
    Dokumenttyp Buch ; Online ; Dissertation / Habilitation
    Datenquelle Digitale Dissertationen im Internet

    Zusatzmaterialien

    Kategorien

Zum Seitenanfang