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Paul B, Kiel A, Otto M, Gemming T, Hoffmann V, Giebeler L, Kaltschmidt B, Hütten A, Gebert A, Kaltschmidt B, Kaltschmidt C, Hufenbach J. Inherent Antibacterial Properties of Biodegradable FeMnC(Cu) Alloys for Implant Application. ACS Appl Bio Mater 2024; 7:839-852. [PMID: 38253353 PMCID: PMC10880094 DOI: 10.1021/acsabm.3c00835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/04/2023] [Accepted: 12/22/2023] [Indexed: 01/24/2024]
Abstract
Implant-related infections or inflammation are one of the main reasons for implant failure. Therefore, different concepts for prevention are needed, which strongly promote the development and validation of improved material designs. Besides modifying the implant surface by, for example, antibacterial coatings (also implying drugs) for deterring or eliminating harmful bacteria, it is a highly promising strategy to prevent such implant infections by antibacterial substrate materials. In this work, the inherent antibacterial behavior of the as-cast biodegradable Fe69Mn30C1 (FeMnC) alloy against Gram-negative Pseudomonas aeruginosa and Escherichia coli as well as Gram-positive Staphylococcus aureus is presented for the first time in comparison to the clinically applied, corrosion-resistant AISI 316L stainless steel. In the second step, 3.5 wt % Cu was added to the FeMnC reference alloy, and the microbial corrosion as well as the proliferation of the investigated bacterial strains is further strongly influenced. This leads for instance to enhanced antibacterial activity of the Cu-modified FeMnC-based alloy against the very aggressive, wild-type bacteria P. aeruginosa. For clarification of the bacterial test results, additional analyses were applied regarding the microstructure and elemental distribution as well as the initial corrosion behavior of the alloys. This was electrochemically investigated by a potentiodynamic polarization test. The initial degraded surface after immersion were analyzed by glow discharge optical emission spectrometry and transmission electron microscopy combined with energy-dispersive X-ray analysis, revealing an increase of degradation due to Cu alloying. Due to their antibacterial behavior, both investigated FeMnC-based alloys in this study are attractive as a temporary implant material.
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Affiliation(s)
- Birgit Paul
- Leibniz
Institute for Solid State and Materials Research Dresden, Helmholtzstr. 20, 01069 Dresden, Germany
| | - Annika Kiel
- Department
of Cell Biology, Faculty of Biology, Universität
Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Martin Otto
- Leibniz
Institute for Solid State and Materials Research Dresden, Helmholtzstr. 20, 01069 Dresden, Germany
- Institute
of Materials Science, Technische Universität
Bergakademie Freiberg, Gustav-Zeuner-Str. 5, 09599 Freiberg, Germany
| | - Thomas Gemming
- Leibniz
Institute for Solid State and Materials Research Dresden, Helmholtzstr. 20, 01069 Dresden, Germany
| | - Volker Hoffmann
- Leibniz
Institute for Solid State and Materials Research Dresden, Helmholtzstr. 20, 01069 Dresden, Germany
| | - Lars Giebeler
- Leibniz
Institute for Solid State and Materials Research Dresden, Helmholtzstr. 20, 01069 Dresden, Germany
| | - Bernhard Kaltschmidt
- Department
of Thin Films and Physics of Nanostructures, Center of Spinelectronic
Materials and Devices, Faculty of Physics, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Andreas Hütten
- Department
of Thin Films and Physics of Nanostructures, Center of Spinelectronic
Materials and Devices, Faculty of Physics, Universität Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Annett Gebert
- Leibniz
Institute for Solid State and Materials Research Dresden, Helmholtzstr. 20, 01069 Dresden, Germany
| | - Barbara Kaltschmidt
- Department
of Cell Biology, Faculty of Biology, Universität
Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Christian Kaltschmidt
- Department
of Cell Biology, Faculty of Biology, Universität
Bielefeld, Universitätsstraße 25, 33615 Bielefeld, Germany
| | - Julia Hufenbach
- Leibniz
Institute for Solid State and Materials Research Dresden, Helmholtzstr. 20, 01069 Dresden, Germany
- Institute
of Materials Science, Technische Universität
Bergakademie Freiberg, Gustav-Zeuner-Str. 5, 09599 Freiberg, Germany
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Pereira MP, Hoffmann V, Weisshaar E, Wallengren J, Halvorsen JA, Garcovich S, Misery L, Brenaut E, Savk E, Potekaev N, Lvov A, Bobko S, Szepietowski JC, Reich A, Bozek A, Legat FJ, Metz M, Streit M, Serra-Baldrich E, Gonçalo M, Storck M, Greiwe I, Nau T, Steinke S, Dugas M, Ständer S, Zeidler C. Chronic nodular prurigo: clinical profile and burden. A European cross-sectional study. J Eur Acad Dermatol Venereol 2020; 34:2373-2383. [PMID: 32078192 DOI: 10.1111/jdv.16309] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 01/27/2020] [Indexed: 01/10/2023]
Abstract
BACKGROUND Chronic nodular prurigo (CNPG) is a condition characterized by chronic itch, a prolonged scratching behaviour and the presence of pruriginous nodules. A comprehensive understanding of this condition, especially regarding its clinical characteristics and impact on quality of life is still lacking. OBJECTIVES Aim of this pan-European multicentre cross-sectional study was to establish the clinical profile of CNPG, including its associated burden. METHODS Fifteen centres from 12 European countries recruited CNPG patients presenting at the centre or using the centres' own databases. Patients were asked to complete a questionnaire in paper or electronic format. Demography, current co-morbidities, underlying disease, itch intensity, additional sensory symptoms, quality of life, highest burden and emotional experience of itch were assessed. RESULTS A total of 509 patients (210 male, median age: 64 years [52; 72]) were enrolled. Of these, 406 reported itch and CNPG lesions in the previous 7 days and qualified to complete the whole questionnaire. We recorded moderate to severe worst itch intensity scores in the previous 24 h. Scores were higher in patients with lower educational levels and those coming from Eastern or Southern Europe. Most patients experience itch often or always (71%) and report that their everyday life is negatively affected (53%). Itch intensity was considered to be the most burdensome aspect of the disease by 49% of the patients, followed by the visibility of skin lesions (21%) and bleeding of lesions (21%). The majority of patients was unaware of an underlying condition contributing to CNPG (64%), while psychiatric diseases were the conditions most often mentioned in association with CNPG (19%). CONCLUSIONS This multicentre cross-sectional study shows that itch is the dominant symptom in CNPG and reveals that the profile of the disease is similar throughout Europe.
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Affiliation(s)
- M P Pereira
- Department of Dermatology and Center for Chronic Pruritus, University Hospital Münster, Münster, Germany
| | - V Hoffmann
- Department of Dermatology and Center for Chronic Pruritus, University Hospital Münster, Münster, Germany
| | - E Weisshaar
- Occupational Medicine, Department of Dermatology, University of Heidelberg, Heidelberg, Germany
| | - J Wallengren
- Department of Clinical Sciences Lund, Dermatology and Venereology and Skane University Hospital, Lund, Sweden
| | - J A Halvorsen
- Department of Dermatology, Oslo University Hospital, University of Oslo, Oslo, Norway
| | - S Garcovich
- Institute of Dermatology, F. Policlinico A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - L Misery
- Department of Dermatology, University Hospital of Brest, Brest, France
| | - E Brenaut
- Department of Dermatology, University Hospital of Brest, Brest, France
| | - E Savk
- Department of Dermatology, Aydin Adnan Menderes University, Aydın, Turkey
| | - N Potekaev
- Moscow Scientific and Practical Center of Dermatovenerology and Cosmetology, Moscow, Russia
| | - A Lvov
- Moscow Scientific and Practical Center of Dermatovenerology and Cosmetology, Moscow, Russia
| | - S Bobko
- Moscow Scientific and Practical Center of Dermatovenerology and Cosmetology, Moscow, Russia
| | - J C Szepietowski
- Department of Dermatology, Venereology and Allergology, Wroclaw Medical University, Wroclaw, Poland
| | - A Reich
- Department of Dermatology, University of Rzeszów, Rzeszów, Poland
| | - A Bozek
- Department of Dermatology, School of Medicine, University of Information Technology and Management, Rzeszow, Poland
| | - F J Legat
- Department of Dermatology, Medical University of Graz, Graz, Austria
| | - M Metz
- Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - M Streit
- Department of Dermatology, Kantonsspital Aarau, Aarau, Switzerland
| | | | - M Gonçalo
- Department of Dermatology, University Hospital and Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - M Storck
- Institute of Medical Informatics, University of Münster, Münster, Germany
| | - I Greiwe
- Department of Dermatology and Center for Chronic Pruritus, University Hospital Münster, Münster, Germany
| | - T Nau
- Department of Dermatology and Center for Chronic Pruritus, University Hospital Münster, Münster, Germany
| | - S Steinke
- Department of Dermatology and Center for Chronic Pruritus, University Hospital Münster, Münster, Germany
| | - M Dugas
- Institute of Medical Informatics, University of Münster, Münster, Germany
| | - S Ständer
- Department of Dermatology and Center for Chronic Pruritus, University Hospital Münster, Münster, Germany
| | - C Zeidler
- Department of Dermatology and Center for Chronic Pruritus, University Hospital Münster, Münster, Germany
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Schmidt R, Gebert A, Schumacher M, Hoffmann V, Voss A, Pilz S, Uhlemann M, Lode A, Gelinsky M. Electrodeposition of Sr-substituted hydroxyapatite on low modulus beta-type Ti-45Nb and effect on in vitro Sr release and cell response. Materials Science and Engineering: C 2020; 108:110425. [DOI: 10.1016/j.msec.2019.110425] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 10/23/2019] [Accepted: 11/11/2019] [Indexed: 01/03/2023]
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Hoffmann V, Pereira MP, Ständer S. Chronischer Pruritus: Epidemiologie, Diagnostik und Behandlung. Akt Dermatol 2019. [DOI: 10.1055/a-0711-9717] [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: 10/26/2022]
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Korsakov AV, Hoffmann V, Pugach LI, Lagerev DG, Korolik VV, Bulatseva MB. Comparative assessment of stillbirth rate in Bryansk region, EU and CIS countries (1995–2014). Bulletin of RSMU 2018. [DOI: 10.24075/brsmu.2018.048] [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: 11/22/2022]
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Xipell M, Victoria I, Hoffmann V, Villarreal J, García-Herrera A, Reig O, Rodas L, Blasco M, Poch E, Mellado B, Quintana LF. Acute tubulointerstitial nephritis associated with atezolizumab, an anti-programmed death-ligand 1 (pd-l1) antibody therapy. Oncoimmunology 2018; 7:e1445952. [PMID: 29900063 DOI: 10.1080/2162402x.2018.1445952] [Citation(s) in RCA: 7] [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] [Received: 01/24/2018] [Revised: 02/20/2018] [Accepted: 02/23/2018] [Indexed: 12/14/2022] Open
Abstract
Direct stimulation of the antitumor activity of immune system through checkpoint inhibitors (ICIs) has demonstrated efficacy in the treatment of different cancer types. The activity of these antibodies takes place in the immunological synapse blocking the binding of the negative immunoregulatory proteins, thus leading to the finalization of the immune response. Despite having a favorable toxicity profile, its mechanism of action impedes the negative regulation of the immune activity which can potentially favor autoimmune attacks to normal tissues. Renal toxicity has been described in several ICI but not with atezolizumab, an IgG1 monoclonal antibody targeting PD-L1 (programmed death ligand 1), approved by FDA as a second-line therapy for advanced urothelial carcinoma. Here we present a patient with a single kidney and metastatic renal cell carcinoma treated with atezolizumab and bevacizumab combination, with biopsy-proven acute interstitial nephritis, who had a complete resolution of renal dysfunction after steroid therapy.
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Affiliation(s)
- M Xipell
- Nephrology and Renal Transplantation Department, Hospital Clínic, IDIBAPS, Universitat de Barcelona, Barcelona, Spain
| | - I Victoria
- Oncology Department, Hospital Clínic, IDIBAPS, Universitat de Barcelona, Barcelona, Spain
| | - V Hoffmann
- Nephrology and Renal Transplantation Department, Hospital Clínic, IDIBAPS, Universitat de Barcelona, Barcelona, Spain
| | - J Villarreal
- Nephrology and Renal Transplantation Department, Hospital Clínic, IDIBAPS, Universitat de Barcelona, Barcelona, Spain
| | - A García-Herrera
- Pathology Department, Hospital Clínic, IDIBAPS, Universitat de Barcelona, Barcelona, Spain
| | - O Reig
- Oncology Department, Hospital Clínic, IDIBAPS, Universitat de Barcelona, Barcelona, Spain
| | - L Rodas
- Nephrology and Renal Transplantation Department, Hospital Clínic, IDIBAPS, Universitat de Barcelona, Barcelona, Spain
| | - M Blasco
- Nephrology and Renal Transplantation Department, Hospital Clínic, IDIBAPS, Universitat de Barcelona, Barcelona, Spain
| | - E Poch
- Nephrology and Renal Transplantation Department, Hospital Clínic, IDIBAPS, Universitat de Barcelona, Barcelona, Spain
| | - B Mellado
- Oncology Department, Hospital Clínic, IDIBAPS, Universitat de Barcelona, Barcelona, Spain
| | - L F Quintana
- Nephrology and Renal Transplantation Department, Hospital Clínic, IDIBAPS, Universitat de Barcelona, Barcelona, Spain
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Storey AP, Ray SJ, Hoffmann V, Voronov M, Engelhard C, Buscher W, Hieftje GM. Wavelength Scanning with a Tilting Interference Filter for Glow-Discharge Elemental Imaging. Appl Spectrosc 2017; 71:1280-1288. [PMID: 27872218 DOI: 10.1177/0003702816680001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Glow discharges have long been used for depth profiling and bulk analysis of solid samples. In addition, over the past decade, several methods of obtaining lateral surface elemental distributions have been introduced, each with its own strengths and weaknesses. Challenges for each of these techniques are acceptable optical throughput and added instrumental complexity. Here, these problems are addressed with a tilting-filter instrument. A pulsed glow discharge is coupled to an optical system comprising an adjustable-angle tilting filter, collimating and imaging lenses, and a gated, intensified charge-coupled device (CCD) camera, which together provide surface elemental mapping of solid samples. The tilting-filter spectrometer is instrumentally simpler, produces less image distortion, and achieves higher optical throughput than a monochromator-based instrument, but has a much more limited tunable spectral range and poorer spectral resolution. As a result, the tilting-filter spectrometer is limited to single-element or two-element determinations, and only when the target spectral lines fall within an appropriate spectral range and can be spectrally discerned. Spectral interferences that result from heterogeneous impurities can be flagged and overcome by observing the spatially resolved signal response across the available tunable spectral range. The instrument has been characterized and evaluated for the spatially resolved analysis of glow-discharge emission from selected but representative samples.
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Affiliation(s)
- Andrew P Storey
- 1 Department of Chemistry, Indiana University, Bloomington, IN, USA
| | - Steven J Ray
- 1 Department of Chemistry, Indiana University, Bloomington, IN, USA
| | - Volker Hoffmann
- 2 IFW Dresden e.V., Leibniz Institute for Solid State and Materials Research Dresden, Dresden, Germany
| | - Maxim Voronov
- 2 IFW Dresden e.V., Leibniz Institute for Solid State and Materials Research Dresden, Dresden, Germany
| | - Carsten Engelhard
- 1 Department of Chemistry, Indiana University, Bloomington, IN, USA
- 3 Department of Chemistry and Biology, University of Siegen, Siegen, Germany
| | - Wolfgang Buscher
- 4 Department of Inorganic and Analytical Chemistry, University of Münster, Münster, Germany
| | - Gary M Hieftje
- 1 Department of Chemistry, Indiana University, Bloomington, IN, USA
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Leinung M, Zaretsky E, Lange BP, Hoffmann V, Stöver T, Hey C. Vibrant Soundbridge® in preschool children with unilateral aural atresia: acceptance and benefit. Eur Arch Otorhinolaryngol 2016; 274:159-165. [DOI: 10.1007/s00405-016-4265-1] [Citation(s) in RCA: 5] [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] [Received: 06/03/2016] [Accepted: 08/11/2016] [Indexed: 10/21/2022]
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Sundermann B, Hoffmann V, Duning T, Schwindt W. Symptomatische gemischte vaskuläre Anomalie des Mittelhirns. ROFO-FORTSCHR RONTG 2016; 188:1172-1173. [DOI: 10.1055/s-0042-111829] [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: 10/21/2022]
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11
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Demir M, Foerster U, Hoffmann V, Pelc A, Schreiter I, Chang DH, Krug B, Christ H, Steffen HM. Effects of early contrast-enhanced computed tomography on clinical course and complications in patients with acute pancreatitis. Z Gastroenterol 2016; 54:642-6. [PMID: 27429101 DOI: 10.1055/s-0042-101961] [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] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
PURPOSE To investigate the effect of an early contrast-enhanced computed tomography (CECT) on clinical course and complications of acute pancreatitis (AP). MATERIAL AND METHODS 58 patients with AP who had at least one CECT examination were analyzed retrospectively. Laboratory as well as clinical data, and results from the assessment of disease severity (CT severity index (CTSI) and its modified (MCTSI) version) were analyzed. The primary endpoint was the development of severe complications, defined as death, respiratory failure, acute renal failure, and the need for invasive interventions. Patients were divided into two groups: an early group (CECT within the first 48 h after the onset of symptoms, n = 32) and a late group (CECT > 48 h after the onset of symptoms, n = 26). Multivariate regression analysis was performed to identify risk factors for severe complications. RESULTS There were no statistically significant differences between both groups concerning baseline characteristics, CTSI, and MCTSI. Complications occurred more often in the early CECT group (p = 0.008). Multivariate logistic regression analysis identified an early CECT and a severe MCTSI as independent risk factors for the occurrence of severe complications (p = 0.02 and p = 0.002, respectively). CONCLUSION CECT performed within the first 48 h after the onset of symptoms is associated with an unfavorable outcome in AP.
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Affiliation(s)
- M Demir
- Clinic for Gastroenterology and Hepatology, University Hospital of Cologne, Cologne, Germany
| | - U Foerster
- Department of Anesthesiology, Technical University Munich, Germany
| | - V Hoffmann
- Clinic for Gastroenterology and Hepatology, University Hospital of Cologne, Cologne, Germany
| | - A Pelc
- Clinic for Gastroenterology and Hepatology, University Hospital of Cologne, Cologne, Germany
| | - I Schreiter
- Department of Radiology, University Hospital of Cologne, Germany
| | - D-H Chang
- Department of Radiology, University Hospital of Cologne, Germany
| | - B Krug
- Department of Radiology, University Hospital of Cologne, Germany
| | - H Christ
- Institute of Medical Statistics, Informatics and Epidemiology, University Hospital of Cologne, Germany
| | - H M Steffen
- Clinic for Gastroenterology and Hepatology, University Hospital of Cologne, Cologne, Germany
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Hoffmann V, Hasford J. Inzidenz und Behandlung der chronischen myeloischen Leukämie in Europa – Unterschiede zwischen Ländern, Geschlechtern und Altersgruppen. Gesundheitswesen 2015. [DOI: 10.1055/s-0035-1562999] [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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13
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Mutiga SK, Hoffmann V, Harvey JW, Milgroom MG, Nelson RJ. Assessment of Aflatoxin and Fumonisin Contamination of Maize in Western Kenya. Phytopathology 2015; 105:1250-1261. [PMID: 25894319 DOI: 10.1094/phyto-10-14-0269-r] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We conducted a survey of aflatoxin and fumonisin in maize in western Kenya. In a regional survey of aflatoxin conducted in 2009 across three agroecological zones within three administrative regions, milled maize samples were collected from 985 patrons of 26 hammer mills. Aflatoxin contamination was detected in 49% of samples and was above the regulatory (10 ppb) in 15% of the samples overall; 65% of samples from a drought-prone area were over the limit. In a detailed survey in Bungoma County, we investigated aflatoxin and fumonisin contamination in four popular maize varieties at harvest and after 2 and 4 months of storage. We collected whole-grain samples from farmers' storage sheds and milled samples from patrons of local mills. Mean aflatoxin contamination was identical for storage sheds and mills at 2.3 ppb. In all, 41% of the samples from mills had detectable aflatoxin, with 4% over the regulatory limit, whereas 87% had detectable fumonisin, with 50% over the regulatory limit (1 ppm). Mean contamination levels did not change during storage. Maize varieties differed in fumonisin contamination, with the most popular varieties vulnerable to both mycotoxins and weevils, which are potential factors in exacerbating mycotoxin contamination. Mycotoxin surveillance is important not just in areas known previously for aflatoxin contamination and acute poisoning but also is needed in all maize-producing regions.
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Affiliation(s)
- S K Mutiga
- First, fourth, and fifth authors: School of Integrative Plant Science, Section of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, NY 14853; second author: International Food Policy Research Institute, 2033 K Street NW, Washington DC 20006; and third author: Biosciences Eastern and Central Africa-International Livestock Research Institute (BecA-ILRI) Hub, P.O. Box 30709, Nairobi 00100, Kenya
| | - V Hoffmann
- First, fourth, and fifth authors: School of Integrative Plant Science, Section of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, NY 14853; second author: International Food Policy Research Institute, 2033 K Street NW, Washington DC 20006; and third author: Biosciences Eastern and Central Africa-International Livestock Research Institute (BecA-ILRI) Hub, P.O. Box 30709, Nairobi 00100, Kenya
| | - J W Harvey
- First, fourth, and fifth authors: School of Integrative Plant Science, Section of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, NY 14853; second author: International Food Policy Research Institute, 2033 K Street NW, Washington DC 20006; and third author: Biosciences Eastern and Central Africa-International Livestock Research Institute (BecA-ILRI) Hub, P.O. Box 30709, Nairobi 00100, Kenya
| | - M G Milgroom
- First, fourth, and fifth authors: School of Integrative Plant Science, Section of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, NY 14853; second author: International Food Policy Research Institute, 2033 K Street NW, Washington DC 20006; and third author: Biosciences Eastern and Central Africa-International Livestock Research Institute (BecA-ILRI) Hub, P.O. Box 30709, Nairobi 00100, Kenya
| | - R J Nelson
- First, fourth, and fifth authors: School of Integrative Plant Science, Section of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, NY 14853; second author: International Food Policy Research Institute, 2033 K Street NW, Washington DC 20006; and third author: Biosciences Eastern and Central Africa-International Livestock Research Institute (BecA-ILRI) Hub, P.O. Box 30709, Nairobi 00100, Kenya
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Hoffmann V, Mogilatenko A, Zeimer U, Einfeldt S, Weyers M, Kneissl M. In-situ observation of InGaN quantum well decomposition during growth of laser diodes. Crystal Research and Technology 2015. [DOI: 10.1002/crat.201500073] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- V. Hoffmann
- Ferdinand-Braun-Institut; Leibniz-Institut für Höchstfrequenztechnik; Berlin Germany
| | - A. Mogilatenko
- Ferdinand-Braun-Institut; Leibniz-Institut für Höchstfrequenztechnik; Berlin Germany
- Humboldt-Universität zu Berlin; Institut für Physik; Berlin Germany
| | - U. Zeimer
- Ferdinand-Braun-Institut; Leibniz-Institut für Höchstfrequenztechnik; Berlin Germany
| | - S. Einfeldt
- Ferdinand-Braun-Institut; Leibniz-Institut für Höchstfrequenztechnik; Berlin Germany
| | - M. Weyers
- Ferdinand-Braun-Institut; Leibniz-Institut für Höchstfrequenztechnik; Berlin Germany
| | - M. Kneissl
- Ferdinand-Braun-Institut; Leibniz-Institut für Höchstfrequenztechnik; Berlin Germany
- Institut für Festkörperphysik; Technische Universität Berlin; Berlin Germany
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Demir M, Nigemeier J, Kütting F, Bowe A, Schramm C, Hoffmann V, Waldschmidt D, Goeser T, Steffen HM. Clinical management of chronic hepatitis B infection: results from a registry at a German tertiary referral center. Infection 2015; 43:153-62. [PMID: 25701223 DOI: 10.1007/s15010-015-0751-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 02/13/2015] [Indexed: 12/18/2022]
Abstract
PURPOSE We studied a cohort of adult patients with chronic hepatitis B (CHB) infection, followed at a tertiary referral liver center in Germany over 12.5 years to analyze the clinical features and impact of management on disease progression and survival of CHB patients in general and of those with CHB and HCC in particular. METHODS We retrospectively evaluated the medical records of 242 adult (age ≥ 18 years) patients. CHB was defined as positive hepatitis B surface antigen (HBsAg) and/or HBV-DNA levels >10 IU/mL for at least 6 months. Patient demographics, HBV markers, antiviral treatment, laboratory parameters, liver imaging and histology were recorded for each visit. HCC patients were divided into two groups and separately analyzed (group 1: n = 24, HCC at first visit and group 2: n = 11, HCC during surveillance). RESULTS The mean age was 44 years in CHB patients without HCC (63% male) and about 59 years in patients with HCC (77% male). Antiviral therapy was given to 59% of patients without HCC compared to only 25% in group 1 and 18% in group 2 with comparable median HBV DNA levels of approximately 36,000 IU/mL. There was no statistically significant difference concerning the HCC stages (Milan, UCSF, BCLC) at first diagnosis. Five-year survival was 19% in group 1 vs. 64% in group 2 (p = 0.019), with LTx performed in 12 vs. 45%, respectively. CONCLUSION Surveillance of CHB patients did not result in early stage detection of HCC but in a higher likelihood to receive potentially curative treatments.
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Affiliation(s)
- M Demir
- Clinic for Gastroenterology and Hepatology, University Hospital of Cologne, 50924, Cologne, Germany,
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Mutiga SK, Were V, Hoffmann V, Harvey JW, Milgroom MG, Nelson RJ. Extent and drivers of mycotoxin contamination: inferences from a survey of kenyan maize mills. Phytopathology 2014; 104:1221-1231. [PMID: 24835222 DOI: 10.1094/phyto-01-14-0006-r] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The prevalence of aflatoxin and fumonisin was investigated in maize intended for immediate human consumption in eastern Kenya at a time in 2010 when an aflatoxin outbreak was recognized. Samples were collected from people who brought their maize for processing at local commercial mills. Sites were selected using a geographical information system overlay of agroecological zones and Kenya's administrative districts. Interviews and collection of maize flour samples was conducted from 1,500 people who processed maize at 143 mills in 10 administrative districts. Mycotoxins were analyzed using enzyme-linked immunosorbent assays for aflatoxin and fumonisin, leading to detection at levels above the respective maximum tolerable limits in 39 and 37% of the samples, respectively. Samples with aflatoxin contamination above the legal limit ranged between 22 and 60% across the districts. A higher occurrence of aflatoxin was associated with smaller maize farms, lower grain yield, and monocropping systems, while a larger magnitude of the toxin was observed in the subhumid agroecological zone, in samples with more broken kernels, and, curiously, less maize ear damage at harvest. Analysis of paired grain samples (visually sorted and unsorted) showed that sorting reduced fumonisin by 65%, from above to below the legal limit of 1,000 ppb. Sorting did not, however, reduce aflatoxin levels. Although the aflatoxin problem is widely acknowledged, the high prevalence of fumonisin has not previously been reported. There is need for surveillance of the two mycotoxins and establishment of intervention strategies to reach vulnerable small-scale farmers.
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Abstract
The absorption intensities of the CH stretching vibrations of the planar hydrocarbons naphthalene anthracene 9 10 d2 anthracene pyrene and fluoranthene have been measured in CCl4 solution Though the π electron densities in the different positions differ from the uniform π electron density in benzene the CH bond intensities in these aromatic hydrocarbons are the same as the CH bond intensities in benzene From this the conclusion can be drawn that no strong interaction between the π electron system and the aCH bonds exists and therefore changes in the π electron density have no measurable effect on the IR intensities of the CH stretching vibrations
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Affiliation(s)
- V. Hoffmann
- Institut für physikalische Chemie der Universität Freiburg im Breisgau
| | - E. D. Schmid
- Institut für physikalische Chemie der Universität Freiburg im Breisgau
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Bucker S, Hoffmann V, Acker J. Determination of Fluorine by Molecular Absorption Spectrometry of AlF Using a High-Resolution Continuum Source Spectrometer and a C 2H 2/N 2O Flame. CURR ANAL CHEM 2014. [DOI: 10.2174/157341101003140521120832] [Citation(s) in RCA: 6] [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: 11/22/2022]
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Acker J, Bucker S, Hoffmann V. The Formation of AlF Molecules and Al Atoms in a C 2H 2/N 2O Flame Studied by Absorption and Emission Spectrometry of Molecules and Atoms. CURR ANAL CHEM 2014. [DOI: 10.2174/157341101003140521115520] [Citation(s) in RCA: 2] [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: 11/22/2022]
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Neumann L, Hoffmann V, Klugmann B, Golgert S, Hasford J, von Renteln-Kruse W. In-hospital falls and potentially inappropriate medication (PIM). Eur Geriatr Med 2013. [DOI: 10.1016/j.eurger.2013.07.205] [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: 12/01/2022]
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Saam T, Hetterich H, Hoffmann V, Yuan C, Treitl M, Dichgans M, Poppert H, Reiser MF, Bamberg F. Meta-Analyse und systematischer Überblick des prädiktiven Wertes von MRT-basierten Intraplaque Einblutungen für das Auftreten von zerebrovaskulären Ereignissen. ROFO-FORTSCHR RONTG 2013. [DOI: 10.1055/s-0033-1346452] [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: 10/26/2022]
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Purwestri RC, Scherbaum V, Inayati DA, Wirawan NN, Suryantan J, Bloem MA, Pangaribuan RV, Stuetz W, Hoffmann V, Qaim M, Biesalski HK, Bellows AC. Impact of Daily versus Weekly Supply of Locally Produced Ready-to-Use Food on Growth of Moderately Wasted Children on Nias Island, Indonesia. ISRN Nutr 2013; 2013:412145. [PMID: 24959543 PMCID: PMC4045281 DOI: 10.5402/2013/412145] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Accepted: 01/08/2013] [Indexed: 11/23/2022]
Abstract
This study reports the outcomes of daily (semi-urban areas) and weekly (remote rural regions) programs for moderately wasted children supplemented with locally produced ready-to-use foods in the form of fortified cereal/nut/legume-based biscuits on Nias Island, Indonesia (RUF-Nias biscuit). Thirty-four children in daily and twenty children in weekly programs aged ≥6 to <60 months with weight-for-height z-score (WHZ) ≥ -3 to < -2 SD were recruited (October 2007-June 2008) on Nias and admitted into existing nutrition centers in the Church World Service project area. Individual discharge criterion was WHZ ≥ -1.5 SD. Weight gain of the children in daily and weekly programs was 3.9 ± 3.8 and 2.0 ± 2.0 g/kg/day, respectively. A higher proportion of children in daily than weekly programs reached target WHZ (76% vs. 35%, P = 0.004). Weight gain at program discharge/closure was highly predicted (R (2) = 0.228, P < 0.001) by compliance to RUF biscuits: high vs. low compliance resulted in a 1.33 (95% CI 0.16 to 1.53) g/kg/day higher weight gain. Compliance and admission in daily programs were significant factors in reducing the risk of not reaching the discharge criterion. However, mothers complained more frequently about time constraints in the daily relative to weekly programs.
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Affiliation(s)
- Ratna Chrismiari Purwestri
- Department of Gender and Nutrition, Institute of Social Sciences in Agriculture, University of Hohenheim and Center of Gender and Nutrition, Schloss, Museumfluegel, 70593 Stuttgart, Germany ; Institute for Biological Chemistry and Nutrition, University of Hohenheim, 70593 Stuttgart, Germany ; Study Program Nutrition, Faculty of Medicine, University of Brawijaya, Malang 65145, Indonesia
| | - Veronika Scherbaum
- Department of Gender and Nutrition, Institute of Social Sciences in Agriculture, University of Hohenheim and Center of Gender and Nutrition, Schloss, Museumfluegel, 70593 Stuttgart, Germany ; Institute for Biological Chemistry and Nutrition, University of Hohenheim, 70593 Stuttgart, Germany
| | - Dyah Ayu Inayati
- Department of Gender and Nutrition, Institute of Social Sciences in Agriculture, University of Hohenheim and Center of Gender and Nutrition, Schloss, Museumfluegel, 70593 Stuttgart, Germany
| | - Nia Novita Wirawan
- Study Program Nutrition, Faculty of Medicine, University of Brawijaya, Malang 65145, Indonesia
| | | | | | - Rosnani Verba Pangaribuan
- SEAMEO TROPMED Regional Centre for Community Nutrition, University of Indonesia, Jakarta 10430, Indonesia
| | - Wolfgang Stuetz
- Institute of Nutrition, Friedrich-Schiller-University of Jena, 07743 Jena, Germany
| | - Volker Hoffmann
- Department of Gender and Nutrition, Institute of Social Sciences in Agriculture, University of Hohenheim and Center of Gender and Nutrition, Schloss, Museumfluegel, 70593 Stuttgart, Germany
| | - Matin Qaim
- Department of Agricultural Economics and Rural Development, University of Goettingen, 37073 Goettingen, Germany
| | - Hans Konrad Biesalski
- Institute for Biological Chemistry and Nutrition, University of Hohenheim, 70593 Stuttgart, Germany
| | - Anne Camilla Bellows
- Department of Gender and Nutrition, Institute of Social Sciences in Agriculture, University of Hohenheim and Center of Gender and Nutrition, Schloss, Museumfluegel, 70593 Stuttgart, Germany ; Department of Public Health, Food Studies, and Nutrition, David B. Falk College, Syracuse University, NY 13244, USA
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Purwestri RC, Scherbaum V, Inayati DA, Wirawan NN, Suryantan J, Bloem MA, Pangaribuan RV, Hoffmann V, Biesalski HK, Qaim M, Bellows AC. Cost analysis of community-based daily and weekly programs for treatment of moderate and mild wasting among children on Nias Island, Indonesia. Food Nutr Bull 2012; 33:207-16. [PMID: 23156124 DOI: 10.1177/156482651203300306] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Ready-to-use food in the form of biscuits (RUF-Nias biscuit) was locally produced for rehabilitation of moderately and mildly wasted (weight-for-height z-score > or = -3 to < -1.5 SD) children on Nias Island, Indonesia. Daily programs were performed in semiurban settings, and weekly programs took place in rural areas. OBJECTIVE To analyze the cost of daily and weekly distribution and supervision of RUF-Nias biscuit programs. METHODS The costs of the daily and weekly programs were derived from the financial report and interviews with program implementers and participating households. Costs were calculated on the basis of total rehabilitation costs per child per day required to achieve a target weight-for-height z-score > or = -1.5 SD in daily and weekly programs. RESULTS Institutional costs to the implementing organization were similar for both programs (approximately US $4 per child per day). The daily programs resulted in a significantly higher proportion of recovered children (78.6% vs. 65.4%) and higher weight gain (3.7 vs. 2.2 g/kg/day) than the weekly programs. About 6% to 7% of the total cost of the programs was accounted for by locally produced RUF-Nias biscuits. The social cost borne by the community for the weekly programs was about half that for the daily programs. CONCLUSIONS The daily programs achieved better results for the implementing organization than the weekly programs; however, the weekly programs were preferred by the community because of the lower time constraints and the lower opportunity cost of time. The willingness of community and household members to invest their time in more intensive activities in the daily programs led to better program outcomes.
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Affiliation(s)
- Ratna Chrismiari Purwestri
- Institute for Social Sciences in Agriculture, Center of Gender and Nutrition, University of Hohenheim, Stuttgart, Germany
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Inayati DA, Scherbaum V, Purwestri RC, Wirawan NN, Suryantan J, Hartono S, Bloem MA, Pangaribuan RV, Biesalski HK, Hoffmann V, Bellows AC. Improved nutrition knowledge and practice through intensive nutrition education: a study among caregivers of mildly wasted children on Nias Island, Indonesia. Food Nutr Bull 2012; 33:117-27. [PMID: 22908693 DOI: 10.1177/156482651203300205] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Inappropriate nutrition knowledge and feeding practices of caregivers are among several important causes of persistent malnutrition problems in young children. Thus, it is essential to provide caregivers with the necessary knowledge to help them modify their feeding practices. OBJECTIVE To examine the effectiveness of two different nutrition education methods, weekly intensive nutrition education (INE) and monthly nonintensive nutrition education (NNE), designed for caregivers of mildly wasted children (weight-for-height z-score ≥ -1.5 to < -1) aged ≥ 6 to < 60 months on Nias Island, Indonesia. METHODS To assess the impact of the two different nutrition education approaches on nutrition knowledge and practice of caregivers with their children, respondents were assigned to receive either weekly INE (n=114) or monthly NNE (n=96). The knowledge and practice levels of the mothers in each group were assessed and compared using a pretested validated questionnaire at admission and after the intervention period. RESULTS At admission, the knowledge and practice levels of caregivers in both groups were not statistically significantly different. After participating in the nutrition education program, the percentage of correct answers on nutrition knowledge and practice in the INE group was significantly higher than that in the NNE group. Significant improvement in knowledge and practice scores was observed in the INE group after the intervention (p < 0.001), whereas only a significant improvement in knowledge was found in the NNE group (p < .05). CONCLUSIONS In comparison with NNE, the INE approach was significantly better in bringing about a positive change in knowledge and practice of caregivers of mildly wasted children in the study area.
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Inayati DA, Scherbaum V, Purwestri RC, Hormann E, Wirawan NN, Suryantan J, Hartono S, Bloem MA, Pangaribuan RV, Biesalski HK, Hoffmann V, Bellows AC. Infant feeding practices among mildly wasted children: a retrospective study on Nias Island, Indonesia. Int Breastfeed J 2012; 7:3. [PMID: 22436662 PMCID: PMC3349617 DOI: 10.1186/1746-4358-7-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Accepted: 03/21/2012] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND This study investigated the infant feeding practices of participating mothers who were recruited into a research project aimed at improving the nutritional status of mildly wasted children (< -1.0 to ≥ -1.5 Weight-for-Height Z-scores) aged ≥ 6 to < 60 months on Nias Island, Indonesia. METHODS Cross-sectional, questionnaire-based interview of mothers of the index children (n = 215) who were admitted to the community program for mildly wasted children in the study area. Four focus groups and twenty in-depth interviews were conducted to explore further information on infant feeding practices in the study area. RESULTS Retrospective results indicated that 6% of the mothers never breastfed. Fifty two percent of mothers initiated breastfeeding within six hours of birth, but 17% discarded colostrum. Exclusive breastfeeding until 6 months of age was practiced by 12%. Seventy-four percent of the mothers offered supplementary liquids besides breast milk within the first 7 days of life, and 14% of infants received these supplementary liquids from 7 days onwards until 6 months of age. Moreover, 79% of the infants were given complementary foods (solid, semi-solid, or soft foods) before 6 months of age. About 9% of the children were breastfed at least two years. Less than one in five of the mildly wasted children (19%) were breastfed on admission to the community program. Qualitative assessments found that inappropriate infant feeding practices were strongly influenced by traditional beliefs of the mothers and paternal grandmothers in the study areas. CONCLUSION Generally, suboptimal infant feeding was widely practiced among mothers of mildly wasted children in the study area on Nias Island, Indonesia. To promote breastfeeding practices among mothers on Nias Island, appropriate nutrition training for community workers and health-nutrition officers is needed to improve relevant counseling skills. In addition, encouraging public nutrition education that promotes breastfeeding, taking into account social-cultural factors such as the influence of paternal grandmothers on infant feeding practice, is needed.
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Affiliation(s)
- Dyah Ayu Inayati
- Institute for Social Sciences in Agriculture, Center Gender and Nutrition (430b), University Hohenheim, Fruwirthstrasse 14-16, 70593 Stuttgart, Germany
| | - Veronika Scherbaum
- Institute for Social Sciences in Agriculture, Center Gender and Nutrition (430b), University Hohenheim, Fruwirthstrasse 14-16, 70593 Stuttgart, Germany
- Institute for Biological Chemistry and Nutrition, University Hohenheim, Stuttgart, Germany
| | - Ratna Chrismiari Purwestri
- Institute for Social Sciences in Agriculture, Center Gender and Nutrition (430b), University Hohenheim, Fruwirthstrasse 14-16, 70593 Stuttgart, Germany
- Institute for Biological Chemistry and Nutrition, University Hohenheim, Stuttgart, Germany
| | - Elizabeth Hormann
- The European Institute for Breastfeeding and Lactation, Kramsach, Austria
| | - Nia Novita Wirawan
- Faculty of Medicine, Study Program Nutrition, University of Brawijaya, Malang, Indonesia
| | | | | | | | | | - Hans Konrad Biesalski
- Institute for Biological Chemistry and Nutrition, University Hohenheim, Stuttgart, Germany
| | - Volker Hoffmann
- Institute for Social Sciences in Agriculture, Center Gender and Nutrition (430b), University Hohenheim, Fruwirthstrasse 14-16, 70593 Stuttgart, Germany
| | - Anne Camilla Bellows
- Institute for Social Sciences in Agriculture, Center Gender and Nutrition (430b), University Hohenheim, Fruwirthstrasse 14-16, 70593 Stuttgart, Germany
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Jacobs C, Jacobs-Müller C, Hoffmann V, Meila D, Erbe C, Krieger E, Wehrbein H. Dental compensation for moderate Class III with vertical growth pattern by extraction of the lower second molars. J Orofac Orthop 2012; 73:41-8. [DOI: 10.1007/s00056-011-0065-9] [Citation(s) in RCA: 7] [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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Purwestri RC, Scherbaum V, Inayati DA, Wirawan NN, Suryantan J, Bloem MA, Pangaribuan RV, Stuetz W, Hoffmann V, Qaim M, Biesalski HK, Bellows AC. Supplementary feeding with locally-produced Ready-to-Use Food (RUF) for mildly wasted children on Nias Island, Indonesia: comparison of daily and weekly program outcomes. Asia Pac J Clin Nutr 2012; 21:374-379. [PMID: 22705426] [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: 06/01/2023]
Abstract
Ready-to-Use Foods (RUFs) in the form of fortified cereal/nut/legume-based biscuits (±500 kcal and 8-10% protein per 100 g) were tested among mildly wasted children from October 2007 to June 2008, and were labelled as RUF-Nias biscuits. This study reports on a comparison of supplementary feeding program outcomes of mildly wasted children with weight-for-height z-score (WHZ) >=-2 to <-1.5 SD aged >=6 to <60 months old given locally produced RUF-Nias biscuits within daily (in semi-urban areas) and weekly (in rural remote regions) distribution and supervision program settings. In the Church World Service project area, all eligible children were recruited continuously from monthly community-based screening programs and admitted into existing nutrition centers managed by the community on Nias Island, Indonesia. Individual discharge criterion of the programs was WHZ >=-1.5 SD. Of the index children admitted in daily programs (n=51), 80.4% reached target WHZ, which was higher than in weekly programs (72.9%; n=48) by a similar length of stay of about 6 weeks. Weight gain of the children in daily programs was higher (3.1±3.6 g/kg body weight/day) than in weekly programs (2.0±2.1 g/kg body weight/day), and they achieved significantly higher WHZ at discharge. However, the majority of caretakers preferred weekly programs due to lower time constraints. Locally produced RUF in the form of biscuits for treatment of mild wasting among children demonstrated promising results both in daily and weekly community-based intervention programs.
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Affiliation(s)
- Ratna C Purwestri
- Institute for Social Sciences in Agriculture, Center of Gender and Nutrition, University of Hohenheim, Schloss, Museumsfluegel, Stuttgart, Germany
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Inayati DA, Scherbaum V, Purwestri RC, Wirawan NN, Suryantan J, Hartono S, Bloem MA, Pangaribuan RV, Biesalski HK, Hoffmann V, Bellows AC. Combined intensive nutrition education and micronutrient powder supplementation improved nutritional status of mildly wasted children on Nias Island, Indonesia. Asia Pac J Clin Nutr 2012; 21:361-373. [PMID: 22705425] [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: 06/01/2023]
Abstract
To assess the impact of intensive nutrition education (INE) with or without the provision of micronutrient powder (MNP) on the nutritional status of mildly wasted children in Nias, Indonesia, two groups of mildly wasted (>=-1.5 to <-1.0 WHZ) children aged >=6 to <60 months in the Church World Service (CWS) project areas were assigned by village randomization to receive INE (n=64) or INE+MNP (n=51) in a weekly program. Another two groups of mildly wasted children who were living at a clear distance from INE and INE+MNP villages were selected to receive a monthly non-intensive nutrition education program (NNE) with or without MNP (n=50 both respectively). WHZ, weight, height, haemoglobin (Hb) level, and morbidity data were assessed at admission, during the study, and at individual discharge. Children's weight gain (g/kg body weight/day) was highest in INE+MNP group (2.2±2.1), followed by INE (1.1±0.9), NNE+MNP (0.3±0.5) and NNE (0.3±0.4) group. In both MNP intervention groups (INE+MNP, NNE+MNP), supplements significantly increased Hb value (g/L) of respective children (10.0±10.0; p<0.001 and 3.0±8.0; p<0.05 respectively). Proportion of children who reached discharge criterion was highest among the INE+MNP (70.6%; n=36), followed by INE (64.1%; n=41), NNE+MNP (26.0%; n=13), and NNE (20.0%; n=10) groups (p<0.001). Shortest length of stay until recovery was observed among children in the INE+MNP group (29.9 days), followed by INE (40.0 days), NNE+MNP (80.6 days), and NNE (86.2 days) respectively (p<0.001). Weekly intensive nutrition education supported by MNP supplementation produced the best results regarding weight gain and haemoglobin status of mildly wasted children.
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Affiliation(s)
- Dyah A Inayati
- Institute for Social Sciences in Agriculture, Center of Gender and Nutrition, University of Hohenheim, Schloss, Museumsfluegel, Stuttgart-Germany
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Abou-Ras D, Marsen B, Rissom T, Frost F, Schulz H, Bauer F, Efimova V, Hoffmann V, Eicke A. Enhancements in specimen preparation of Cu(In,Ga)(S,Se)2 thin films. Micron 2011; 43:470-4. [PMID: 22192980 DOI: 10.1016/j.micron.2011.11.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2011] [Revised: 11/11/2011] [Accepted: 11/11/2011] [Indexed: 10/14/2022]
Abstract
When producing slices from Cu(In,Ga)(S,Se)(2) thin films for solar cells by use of a focused ion beam (FIB), agglomerates form on the Cu(In,Ga)(S,Se)(2) surfaces, which deteriorate substantially the imaging and analysis in scanning electron microscopy. Similar problems are also experienced when depth-profiling Cu(In,Ga)(S,Se)(2) thin films by means of glow-discharge or secondary ion mass spectrometry. The present work shows that the agglomerates are composed of (mainly) Cu, and that their formation may be impeded considerably by either cooling of the sample or by use of reactive gases during the ion-beam sputtering. The introduction of XeF(2) during FIB slicing resulted in excellent images, in which the microstructures of most layers in the Cu(In,Ga)(S,Se)(2) thin film stack are visible, including the microstructure of the 20 nm thin MoSe(2) layer. Acquisition of high-quality two-dimensional and also three-dimensional electron backscatter diffraction data was possible. The present work gives a basis for enhanced SEM imaging and analysis not only in the case of Cu(In,Ga)(S,Se)(2) thin films but also when dealing with further material systems exhibiting similar formations of agglomerates.
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Affiliation(s)
- D Abou-Ras
- Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109 Berlin, Germany.
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Abou-Ras D, Caballero R, Fischer CH, Kaufmann CA, Lauermann I, Mainz R, Mönig H, Schöpke A, Stephan C, Streeck C, Schorr S, Eicke A, Döbeli M, Gade B, Hinrichs J, Nunney T, Dijkstra H, Hoffmann V, Klemm D, Efimova V, Bergmaier A, Dollinger G, Wirth T, Unger W, Rockett AA, Perez-Rodriguez A, Alvarez-Garcia J, Izquierdo-Roca V, Schmid T, Choi PP, Müller M, Bertram F, Christen J, Khatri H, Collins RW, Marsillac S, Kötschau I. Comprehensive comparison of various techniques for the analysis of elemental distributions in thin films. Microsc Microanal 2011; 17:728-751. [PMID: 21906418 DOI: 10.1017/s1431927611000523] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The present work shows results on elemental distribution analyses in Cu(In,Ga)Se2 thin films for solar cells performed by use of wavelength-dispersive and energy-dispersive X-ray spectrometry (EDX) in a scanning electron microscope, EDX in a transmission electron microscope, X-ray photoelectron, angle-dependent soft X-ray emission, secondary ion-mass (SIMS), time-of-flight SIMS, sputtered neutral mass, glow-discharge optical emission and glow-discharge mass, Auger electron, and Rutherford backscattering spectrometry, by use of scanning Auger electron microscopy, Raman depth profiling, and Raman mapping, as well as by use of elastic recoil detection analysis, grazing-incidence X-ray and electron backscatter diffraction, and grazing-incidence X-ray fluorescence analysis. The Cu(In,Ga)Se2 thin films used for the present comparison were produced during the same identical deposition run and exhibit thicknesses of about 2 μm. The analysis techniques were compared with respect to their spatial and depth resolutions, measuring speeds, availabilities, and detection limits.
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Affiliation(s)
- D Abou-Ras
- Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109 Berlin, Germany.
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Lange T, Niederwieser D, Hoffmann V, Pfirrmann M, Maschmeyer G, Fischer T, Herold M, Sayer HG, Junghanss C, Krahl R, Al-Ali HK, Pönisch W, Vucinic V, Doelken G, Sauerland MC, Heinecke A, Hoelzer D, Hehlmann R, Berdel WE, Buchner T. Intergroup study in elderly patients with AML to compare complete remission rate and overall survival after intermediate-dose or low-dose AraC. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.6618] [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: 11/20/2022] Open
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Schad F, Merkle A, Hoffmann V, Lenneweit G, Spahn G, Hesse M, Paxino C, Wellmann G, Matthes B, Baute R, Breitkreuz T, Matthes H. An integrative approach of cancer treatment with mistletoe therapy, surgery, irradiation and chemotherapy in CAM settings. Eur J Integr Med 2009. [DOI: 10.1016/j.eujim.2009.08.079] [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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Kragballe K, Hoffmann V, Ortonne J, Tan J, Nordin P, Segaert S. Efficacy and safety of calcipotriol plus betamethasone dipropionate scalp formulation compared with calcipotriol scalp solution in the treatment of scalp psoriasis: a randomized controlled trial. Br J Dermatol 2009; 161:159-66. [DOI: 10.1111/j.1365-2133.2009.09116.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Cressoni M, Zanella A, Epp M, Corti I, Hoffmann V, Cadringher P, Kolobow T. A novel method to develop an elastic, thin-walled, leak-proof, inflatable tracheal tube cuff. Crit Care 2009. [PMCID: PMC4083901 DOI: 10.1186/cc7179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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van de Kerkhof PCM, Hoffmann V, Anstey A, Barnes L, Bolduc C, Reich K, Saari S, Segaert S, Vaillant L. A new scalp formulation of calcipotriol plus betamethasone dipropionate compared with each of its active ingredients in the same vehicle for the treatment of scalp psoriasis: a randomized, double-blind, controlled trial. Br J Dermatol 2008; 160:170-6. [PMID: 19067709 DOI: 10.1111/j.1365-2133.2008.08927.x] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND There is a need for new treatments for scalp psoriasis, as many topical treatments are cosmetically unacceptable and difficult to apply, resulting in poor compliance. OBJECTIVES To compare the efficacy and safety of a new, once-daily, two-compound scalp formulation (Xamiol; LEO Pharma A/S, Ballerup, Denmark) containing calcipotriol 50 microg g(-1) plus betamethasone 0.5 mg g(-1) (as dipropionate), with the active ingredients as single compounds in the same vehicle. METHODS This 8-week, multicentre, double-blind, parallel-group study, randomized adult patients with scalp psoriasis involving > 10% of the scalp to the two-compound scalp formulation (n = 568), betamethasone dipropionate 0.5 mg g(-1) (n = 563), or calcipotriol 50 microg g(-1) (n = 286). The primary efficacy measure was the proportion of patients with 'absence of disease' or 'very mild disease' according to investigators' assessments at week 8. RESULTS The proportion of patients with 'absence of disease' or 'very mild disease' at week 8 was significantly higher in the two-compound group (68.4%) than the betamethasone dipropionate (61.0%, P = 0.0079) or calcipotriol (43.4%, P < 0.0001) groups. The proportion of patients rating their scalp psoriasis as 'clear' or 'almost clear' was significantly higher for the two-compound scalp formulation (69.6%) than for betamethasone dipropionate (59.9%, P = 0.0006) or calcipotriol (44.7%, P < 0.0001). The incidence of lesional/perilesional adverse events was lower in the two-compound and betamethasone dipropionate groups than the calcipotriol group. CONCLUSIONS The two-compound scalp formulation was well tolerated and more effective in the treatment of scalp psoriasis than either of its individual components in the same vehicle.
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Affiliation(s)
- P C M van de Kerkhof
- Department of Dermatology, University Hospital Nijmegen, Centrum St Radboud, Postbus 9101, 6525 GL Nijmegen, The Netherlands
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Hoffmann V, Efimova VV, Voronov MV, Šmíd P, Steers EBM, Eckert J. Measurement of voltage and current in continuous and pulsed rf and dc glow discharges. ACTA ACUST UNITED AC 2008. [DOI: 10.1088/1742-6596/133/1/012017] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Steers EBM, Šmid P, Hoffmann V, Weiss Z. The effects of traces of molecular gases (H2, N2& O2) in glow discharges in noble gases. ACTA ACUST UNITED AC 2008. [DOI: 10.1088/1742-6596/133/1/012020] [Citation(s) in RCA: 10] [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: 11/12/2022]
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Hampel S, Kunze D, Haase D, Krämer K, Rauschenbach M, Ritschel M, Leonhardt A, Thomas J, Oswald S, Hoffmann V, Büchner B. Carbon nanotubes filled with a chemotherapeutic agent: a nanocarrier mediates inhibition of tumor cell growth. Nanomedicine (Lond) 2008; 3:175-82. [PMID: 18373424 DOI: 10.2217/17435889.3.2.175] [Citation(s) in RCA: 185] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: In this paper, carbon nanotubes (CNTs) are presented as feasible carriers for carboplatin, a therapeutic agent for cancer treatment. The drug was introduced into CNTs to demonstrate that they are suited as nanocontainers and nanocarriers and can release the drug to initialize its medical virtue. Method: The filling was accomplished by a wet-chemical approach after the CNTs were opened. The effect on cell proliferation and cytotoxicity of the carboplatin-filled CNT was investigated by using a viability assays. Results: Using different analysis methods such as electron energy loss spectroscopy and x-ray photoelectron spectroscopy the structure of carboplatin incorporated into the CNTs was found to be retained. In vitro studies showed that carboplatin-filled CNTs inhibited growth of bladder cancer cells whereas unfilled, opened CNTs barely affected cancer cell growth. Conclusion: A reversible filling–emptying process could be performed successfully within this work. This highlights the potential of CNTs for applications in the field of drug delivery.
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Affiliation(s)
- Silke Hampel
- Leibniz Institute for Solid State and Materials Research Dresden, PF 270116, 01171 Dresden, Germany
| | - Doreen Kunze
- Technical University of Dresden, Department of Urology, Fetscherstraße 74, 01307 Dresden, Germany
| | - Diana Haase
- Leibniz Institute for Solid State and Materials Research Dresden, PF 270116, 01171 Dresden, Germany
| | - Kai Krämer
- Technical University of Dresden, Department of Urology, Fetscherstraße 74, 01307 Dresden, Germany
| | - Mandy Rauschenbach
- Leibniz Institute for Solid State and Materials Research Dresden, PF 270116, 01171 Dresden, Germany
| | - Manfred Ritschel
- Leibniz Institute for Solid State and Materials Research Dresden, PF 270116, 01171 Dresden, Germany
| | - Albrecht Leonhardt
- Leibniz Institute for Solid State and Materials Research Dresden, PF 270116, 01171 Dresden, Germany
| | - Jürgen Thomas
- Leibniz Institute for Solid State and Materials Research Dresden, PF 270116, 01171 Dresden, Germany
| | - Steffen Oswald
- Leibniz Institute for Solid State and Materials Research Dresden, PF 270116, 01171 Dresden, Germany
| | - Volker Hoffmann
- Leibniz Institute for Solid State and Materials Research Dresden, PF 270116, 01171 Dresden, Germany
| | - Bernd Büchner
- Leibniz Institute for Solid State and Materials Research Dresden, PF 270116, 01171 Dresden, Germany
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胡 守, 闫 海, Blaha U, Rsler W, 段 雪, Appel E, 沈 明, Hoffmann V. 北京首钢工业区大气重金属污染树叶的磁学响应. Chin Sci Bull 2008. [DOI: 10.1360/csb2008-53-4-437] [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: 11/09/2022]
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Klemm D, Stangl M, Peeva A, Hoffmann V, Wetzig K, Eckert J. Analysis of interface impurities in electroplated Cu layers by using GD-OES and TOF-SIMS. SURF INTERFACE ANAL 2008. [DOI: 10.1002/sia.2743] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Stemmler H, Laessig D, Stieber P, Bauerfeind I, Fasching P, Glattes M, Goldmann-Posch U, Hoffmann V, Untch M, Heinemann V. Follow-up for breast cancer: Results of a patients survey. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.568] [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: 11/20/2022] Open
Abstract
568 Background: International guidelines for the surveillance of post-treatment breast cancer patients recommend a clinical follow-up including routine history, physical examination and regularly scheduled mammograms. This often discussed practice has previously been shown not to be inferior when compared to an intensified follow-up in randomized trials performed in the eighties. Patients and Methods: We report the patients’ view on the basis of pooled data of two surveys performed in Germany. The questionnaire was sent out to 2,658 patients with a history of breast cancer. Results: A total of 801 patients (30.1%) answered to the questionnaire. The median age was 57 years (range 23–85 years). More than 80% of the patients were disease-free at the time of the survey. Necessity for surveillance was affirmed by a majority (95.6%), and 40.3% of the patients answered that there was a need for more intensive diagnostic effort with regard to laboratory exams and imaging procedures during follow-up. The main expectation from an intensified follow-up include was the increased feeling of security as expressed by 86.6% of the patients. In contrast to the follow-up guidelines, the present survey indicates that most of the regularly scheduled follow-up visits were expanded using extensive laboratory and imaging procedures (ultrasound 81.9%, CT scan 33.8%). In view of the unsatisfactory evidence on follow-up in breast cancer only 25.7% patients indicated that they would participate in a trial randomising between conventional and more intensive follow-up. Conclusion: The survey indicates that a majority of physicians do not accept the present follow-up guidelines. To some extent this may be explained by the observation that patients and possibly also their doctors trust that intensified follow-up increases diagnostic security. Clearly, a new surveillance study is warranted which investigates the impact of an intensified surveillance on survival based on the greatly improved possibilities of modern diagnostics and treatment. No significant financial relationships to disclose.
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Affiliation(s)
- H. Stemmler
- University of Munich - Klinikum Grosshadern, Munich, Germany; University Hospital of Erlangen, Erlangen, Germany; AOK Rheinland, Duesseldorf, Germany; Mamazone E.V., Augsburg, Germany; Helios-Klinik, Berlin, Germany
| | - D. Laessig
- University of Munich - Klinikum Grosshadern, Munich, Germany; University Hospital of Erlangen, Erlangen, Germany; AOK Rheinland, Duesseldorf, Germany; Mamazone E.V., Augsburg, Germany; Helios-Klinik, Berlin, Germany
| | - P. Stieber
- University of Munich - Klinikum Grosshadern, Munich, Germany; University Hospital of Erlangen, Erlangen, Germany; AOK Rheinland, Duesseldorf, Germany; Mamazone E.V., Augsburg, Germany; Helios-Klinik, Berlin, Germany
| | - I. Bauerfeind
- University of Munich - Klinikum Grosshadern, Munich, Germany; University Hospital of Erlangen, Erlangen, Germany; AOK Rheinland, Duesseldorf, Germany; Mamazone E.V., Augsburg, Germany; Helios-Klinik, Berlin, Germany
| | - P. Fasching
- University of Munich - Klinikum Grosshadern, Munich, Germany; University Hospital of Erlangen, Erlangen, Germany; AOK Rheinland, Duesseldorf, Germany; Mamazone E.V., Augsburg, Germany; Helios-Klinik, Berlin, Germany
| | - M. Glattes
- University of Munich - Klinikum Grosshadern, Munich, Germany; University Hospital of Erlangen, Erlangen, Germany; AOK Rheinland, Duesseldorf, Germany; Mamazone E.V., Augsburg, Germany; Helios-Klinik, Berlin, Germany
| | - U. Goldmann-Posch
- University of Munich - Klinikum Grosshadern, Munich, Germany; University Hospital of Erlangen, Erlangen, Germany; AOK Rheinland, Duesseldorf, Germany; Mamazone E.V., Augsburg, Germany; Helios-Klinik, Berlin, Germany
| | - V. Hoffmann
- University of Munich - Klinikum Grosshadern, Munich, Germany; University Hospital of Erlangen, Erlangen, Germany; AOK Rheinland, Duesseldorf, Germany; Mamazone E.V., Augsburg, Germany; Helios-Klinik, Berlin, Germany
| | - M. Untch
- University of Munich - Klinikum Grosshadern, Munich, Germany; University Hospital of Erlangen, Erlangen, Germany; AOK Rheinland, Duesseldorf, Germany; Mamazone E.V., Augsburg, Germany; Helios-Klinik, Berlin, Germany
| | - V. Heinemann
- University of Munich - Klinikum Grosshadern, Munich, Germany; University Hospital of Erlangen, Erlangen, Germany; AOK Rheinland, Duesseldorf, Germany; Mamazone E.V., Augsburg, Germany; Helios-Klinik, Berlin, Germany
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Hellwig K, Schimrigk S, Lukas C, Hoffmann V, Brune N, Przuntek H, Müller T. Efficacy of mitoxantrone and intrathecal triamcinolone acetonide treatment in chronic progressive multiple sclerosis patients. Clin Neuropharmacol 2006; 29:286-91. [PMID: 16960474 DOI: 10.1097/01.wnf.0000229545.81245.a4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [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: 11/26/2022]
Abstract
Treatment approaches are rare for chronic progressive patients with multiple sclerosis (MS). Objective was to evaluate the clinical benefit of repeated intrathecal application of the sustained release steroid triamcinolone acetonide or the administration of mitoxantrone (MIX) in 2 similar cohorts of chronic progressive patients with MS in an open-label fashion. Expanded Disability Status Scale scores significantly decreased after the first 6 intraspinal triamcinolone acetonide injections, which were performed every third day, and then remained stable. Walking distance significantly increased and did not reduce until the end of the 1-year-long trial period. Mitoxantrone treatment did not improve the Expanded Disability Status Scale score; however, no further significant deterioration appeared. Walking distance did not significantly decrease. Both treatment regimens were safe; the patients experienced nearly no adverse effects. Triamcinolone acetonide application provided a clinical benefit, whereas MIX administration prevented further worsening of MS symptoms. We stress that only specialists with a broad experience in intraspinal triamcinolone acetonide application and MIX administration should perform both kinds of therapy only after a careful information and risk-benefit evaluation in cooperation with the patient. Future trials will show the efficacy of combination of both treatment approaches in chronic progressive patients with MS.
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Affiliation(s)
- Kerstin Hellwig
- Department of Neurology, St Josef Hospital, Ruhr University Bochum, Gudrunstrasse 56, 44791 Bochum, Germany
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Schimrigk S, Brune N, Hellwig K, Lukas C, Bellenberg B, Rieks M, Hoffmann V, Pöhlau D, Przuntek H. Oral fumaric acid esters for the treatment of active multiple sclerosis: an open-label, baseline-controlled pilot study. Eur J Neurol 2006; 13:604-10. [PMID: 16796584 DOI: 10.1111/j.1468-1331.2006.01292.x] [Citation(s) in RCA: 154] [Impact Index Per Article: 8.6] [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: 11/27/2022]
Abstract
An exploratory, prospective, open-label study of fumaric acid esters (FAE, Fumaderm(R)) was conducted in patients with relapsing-remitting multiple sclerosis (RRMS). The study consisted of the following four phases: 6-week baseline, 18-week treatment (target dose of 720 mg/day), 4-week washout, and a second 48-week treatment phase (target dose of 360 mg/day). Ten patients with an Expanded Disability Status Scale (EDSS) score of 2.0-6.0 and at least one gadolinium-enhancing (Gd+) lesion on T1-weighted magnetic resonance imaging (MRI) brain scans participated in the study. Safety was assessed by adverse events (AEs), blood chemistry/hematology, electrocardiogram, and urinalysis. The primary efficacy outcomes were number and volume of Gd+ lesions. Other clinical outcomes included EDSS score, ambulation index (AI), and nine-hole peg test (9-HPT). Effects of FAE on intracellular cytokine profiles, T-cell apoptosis, and soluble adhesion molecules were also assessed. Three patients withdrew during the first 3 weeks of the study because of side effects, non-compliance, and follow-up loss. The most common AEs were gastrointestinal symptoms and flushing; all AEs were reported as mild and reversible. FAE produced significant reductions from baseline in number (P < 0.05) and volume (P < 0.01) of Gd+ lesions after 18 weeks of treatment; this effect persisted during the second treatment phase at half the target dose after the 4-week washout period. EDSS scores, AI, and 9-HPT remained stable or slightly improved from baseline in all patients. Measures of T-cell function demonstrated alterations in cytokines and circulating tumor necrosis factor. The results of this exploratory study suggest that further studies of FAE in patients with MS are warranted.
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Affiliation(s)
- S Schimrigk
- Department of Neurology, St. Josef Hospital, Ruhr Universität Bochum, Germany.
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Baunack S, Hoffmann V, Zahn W. Quantitative nitrogen analysis by Auger electron spectrometry and glow discharge optical emission spectrometry. Mikrochim Acta 2006. [DOI: 10.1007/s00604-006-0587-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [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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Hoffmann V, Kuhn W, Schimrigk S, Islamova S, Hellwig K, Lukas C, Brune N, Pöhlau D, Przuntek H, Müller T. Repeat intrathecal triamcinolone acetonide application is beneficial in progressive MS patients. Eur J Neurol 2006; 13:72-6. [PMID: 16420395 DOI: 10.1111/j.1468-1331.2006.01145.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [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: 12/01/2022]
Abstract
Available immunomodulatory and conventional steroid treatment regimens provide a limited symptomatic benefit for patients with progressive multiple sclerosis (MS). We performed an open trial on the short-term efficacy of repeated intrathecal application of the sustained release steroid triamcinolone acetonide (TCA) in 27 progressive MS patients. Six TCA administrations, performed every third day, reduced the Expanded Disability Status Scale (EDSS) score [initial: 5.4+/-1.3, 3-7.5 (mean+/-SD, range); end: 4.9+/-1.1; 2.5-6.5; P<0.001] and significantly increased the walking distance and speed in particular after the fourth TCA injection. Concomitantly serially determined cerebrospinal fluid (CSF) markers of cell injury, neuron-specific enolase, total tau-protein, S-100, and beta-amyloid did not significantly change within the interval of TCA treatment. No serious side effects appeared. We conclude that repeat intrathecal injection of 40 mg TCA provides a substantial benefit in progressive MS patients with predominant spinal symptoms and does not alter CSF markers of neuronal cell injury.
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Affiliation(s)
- V Hoffmann
- Department of Neurology, Kamillus-Klinik, Asbach, and Department of Neurology, St Josef-Hospital, Ruhr-University, Bochum, Germany
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Hellwig K, Lukas C, Brune N, Hoffmann V, Schimrigk S, Przuntek H, Müller T. Repeat intrathecal triamcinolone acetonide application reduces acute occurring painful dysesthesia in patients with relapsing remitting multiple sclerosis. ScientificWorldJournal 2006; 6:460-5. [PMID: 16604259 PMCID: PMC5917289 DOI: 10.1100/tsw.2006.86] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
We describe four patients with relapsing remitting multiple sclerosis (RRMS) who experienced a relapse with acute onset of painful sensations. Pain sensations disappeared in two of them and markedly reduced in the other ones after repeat application of intrathecal triamcinolone acetonide (TCA) following a prior unsuccessful treatment with intravenous steroids. TCA administration was well tolerated and no serious side effects occurred. Repeated intrathecal TCA injection may provide a substantial benefit in RRMS patients with acute onset of pain due to an inflammatory lesion within the spinal cord.
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Affiliation(s)
- Kerstin Hellwig
- Department of Neurology,
St. Josef Hospital,
Ruhr University Bochum,
Gudrunstrasse 56,
44791 Bochum,
Germany
| | - Carsten Lukas
- Department of Neurology,
St. Josef Hospital,
Ruhr University Bochum,
Gudrunstrasse 56,
44791 Bochum,
Germany
| | - Niels Brune
- Department of Neurology,
St. Josef Hospital,
Ruhr University Bochum,
Gudrunstrasse 56,
44791 Bochum,
Germany
| | - Volker Hoffmann
- Department of Neurology,
St. Josef Hospital,
Ruhr University Bochum,
Gudrunstrasse 56,
44791 Bochum,
Germany
| | - Sebastian Schimrigk
- Department of Neurology,
St. Josef Hospital,
Ruhr University Bochum,
Gudrunstrasse 56,
44791 Bochum,
Germany
| | - Horst Przuntek
- Department of Neurology,
St. Josef Hospital,
Ruhr University Bochum,
Gudrunstrasse 56,
44791 Bochum,
Germany
| | - Thomas Müller
- Department of Neurology,
St. Josef Hospital,
Ruhr University Bochum,
Gudrunstrasse 56,
44791 Bochum,
Germany
- *Thomas Müller:
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Spiteri C, Kalinski V, Rösler W, Hoffmann V, Appel E. Magnetic screening of a pollution hotspot in the Lausitz area, Eastern Germany: correlation analysis between magnetic proxies and heavy metal contamination in soils. ACTA ACUST UNITED AC 2005. [DOI: 10.1007/s00254-005-1271-9] [Citation(s) in RCA: 102] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Wang Y, Hu S, Zhu Y, Yin Y, Zhou W, Appel E, Hoffmann V. The lacustrine sedimentary records of coal-burning atmospheric pollution. ACTA ACUST UNITED AC 2005. [DOI: 10.1360/02yd0322] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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