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Nugent BD, Ren D, Bender C, Rosenzweig M. Abstract P1-17-10: The impact of age and adjuvant chemotherapy modifications on disease-free and overall survival among African American women with breast cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p1-17-10] [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: 11/16/2022]
Abstract
Abstract
Background: During chemotherapy for breast cancer, African American women receive less relative dose intensity with more dose reductions and early chemotherapy cessation compared to Caucasian women. Other research has found that older breast cancer patients are most at risk for treatment modifications; however, it is unclear if this remains true for African American patients. Furthermore, the clinical implications of treatment modifications and delays on survival is uncertain, particularly in African American patients.
Purpose: The purpose of this study was to investigate whether age (diagnosis <55 vs. diagnosis ≥55) was a moderator for the association between treatment modifications (dose held, dose delayed, and early cessation) and overall survival (OS) and disease-free survival (DFS) in African American women with breast cancer.
Methods: A retrospective cohort study of early stage African American breast cancer patients treated with adjuvant chemotherapy was employed. Dose held, dose delayed and early cessation were examined as dichotomous variables: any adjustment to the initially prescribed treatment plan was considered a modification. Medical record data extraction was utilized to gather this information. The sample was divided into two groups: those diagnosed <55 years of age and those diagnosed ≥55 years of age. A Cox's proportional hazards regression model was used to examine the interaction between age group and treatment modifications for OS and DFS, while controlling for stage and ER and HER2 status.
Results: In the study of 115 participants, 58 (50.4%) were diagnosed before the age of 55, and 57 (49.6%) were diagnosed age 55 or older. Across the entire sample, 43 (37.4%) patients experienced a treatment modification. There were no significant differences in the proportions of treatment modifications between the two age groups. We found no interaction between age group and treatment modifications for OS. However, there was a significant interaction between age group and held dose for DFS (p=0.045). Specifically, those diagnosed at 55 years of age and older, who had doses of chemotherapy held, experienced worse DFS compared to those who did not (hazard ratio (HR)=3.390, 95% CI (1.013,11.34)). In contrast, there was no difference in DFS between those who did and did not have doses held in patients diagnosed below 55 years of age (HR=0.563, 95%CI (0.159, 1.986)).
Conclusions: African American women receiving adjuvant chemotherapy for treatment of early stage breast cancer have high levels of treatment modifications across all age groups. However, held doses of chemotherapy in older African American patients were associated with worse DFS. Further research is needed to elucidate the clinical implications of adjuvant chemotherapy treatment modifications, particularly in African American patients, and the subgroups of patients who are at greatest risk.
Citation Format: Nugent BD, Ren D, Bender C, Rosenzweig M. The impact of age and adjuvant chemotherapy modifications on disease-free and overall survival among African American women with breast cancer [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P1-17-10.
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Affiliation(s)
- BD Nugent
- University of Pittsburgh, Pittsburgh, PA
| | - D Ren
- University of Pittsburgh, Pittsburgh, PA
| | - C Bender
- University of Pittsburgh, Pittsburgh, PA
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Montaner-Pizá A, Rubio B, Mücher D, Orrigo S, Simpson E, Gelletly W, Agramunt J, Algora A, Bender C, Fujita Y, Ganioglu E, Guadilla V, Hellgartner S, Reichert S. New Results on Excited States in the one-particle one-hole nucleus 56Co measured with MINIBALL detectors. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201922301042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The non-yrast states of the odd-odd nucleus 56Co have been investigated by studying the γ-rays induced in the predominantly fusion-evaporation reaction 56Fe(p,n γ)56Co at an incident energy of 10 MeV. The γ-rays were measured in-beam with four high-resolution MINIBALL-triple germanium (Ge) detectors. The experiment provided excellent data in γ-γ coincidences. The complex level scheme of 56Co was constructed mainly based on the analysis of these γ-γ coincidences. The angular distributions of the γ-rays were also analysed and allowed us to assign spin-parity values to most of the excited states in this nucleus. Despite the extensive work previously done studying the 56Co nucleus, the analysis presented in this work has resulted in a large improvement in the knowledge of its structure.
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Kuner R, Laible M, Gangi-Maurici S, Walter C, Bender C, Schaefer G, Klocker H, Oed M, Bukur V, Sahin U. PO-324 Detection of high-risk prostate cancer biomarkers by RNA sequencing and qPCR method. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.354] [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: 11/04/2022] Open
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Winkler JK, Bender C, Kratochwil C, Enk A, Hassel JC. PD-1 blockade: a therapeutic option for treatment of metastatic Merkel cell carcinoma. Br J Dermatol 2016; 176:216-219. [PMID: 27038231 DOI: 10.1111/bjd.14632] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/29/2016] [Indexed: 12/18/2022]
Abstract
The immune system is extremely important in the development and progression of Merkel cell carcinoma (MCC). Immune checkpoint blockade has recently been shown to enable efficacious treatment of a variety of tumours. We report the use of an anti-programmed death receptor 1 (PD-1) antibody for treatment of a patient with metastatic MCC. An 80-year-old patient with metastatic MCC received off-label treatment with the anti-PD-1 antibody pembrolizumab after the disease had progressed during therapy with oral etoposide. A positron emission tomography (PET) computed tomography scan performed after three cycles of pembrolizumab revealed responses to therapy with reduced size of the adrenal gland metastases and less PET activity in the adrenal gland and lymph node metastases. Treatment was resumed owing to disease progression after a treatment-free interval of > 4 months. During subsequent months of treatment, the size of the metastases stabilized and uptake of nuclide by all tumour sites once again decreased. These results reveal the potential efficacy of an anti-PD-1 antibody for treatment of metastatic MCC. Thus, they contribute to currently limited data on the use of anti-PD-1 antibodies for the treatment of MCC. Moreover, this is the first report of successful resumption of treatment of metastatic MCC with an anti-PD-1 antibody. Results from ongoing trials will contribute to determination of the relevance of PD-1 blockade in metastatic MCC.
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Affiliation(s)
- J K Winkler
- Department of Dermatology and National Center for Tumor Diseases (NCT), University Hospital Heidelberg, Heidelberg, Germany
| | - C Bender
- Department of Dermatology and National Center for Tumor Diseases (NCT), University Hospital Heidelberg, Heidelberg, Germany
| | - C Kratochwil
- Department of Nuclear Medicine, Heidelberg, Germany
| | - A Enk
- Department of Dermatology and National Center for Tumor Diseases (NCT), University Hospital Heidelberg, Heidelberg, Germany
| | - J C Hassel
- Department of Dermatology and National Center for Tumor Diseases (NCT), University Hospital Heidelberg, Heidelberg, Germany
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Winkler JK, Schneiderbauer R, Bender C, Sedlaczek O, Fröhling S, Penzel R, Enk A, Hassel JC. Anti-programmed cell death-1 therapy in nonmelanoma skin cancer. Br J Dermatol 2016; 176:498-502. [PMID: 27061826 DOI: 10.1111/bjd.14664] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- J K Winkler
- Department of Dermatology and National Center for Tumor Diseases (NCT), University Hospital Heidelberg, Heidelberg, Germany
| | - R Schneiderbauer
- Department of Dermatology and National Center for Tumor Diseases (NCT), University Hospital Heidelberg, Heidelberg, Germany
| | - C Bender
- Department of Dermatology and National Center for Tumor Diseases (NCT), University Hospital Heidelberg, Heidelberg, Germany
| | - O Sedlaczek
- National Center for Tumor Diseases (NCT) and German Cancer Research Center (DKFZ), Department of Diagnostic Radiology, University Hospital Heidelberg, Heidelberg, Germany
| | - S Fröhling
- National Center for Tumor Diseases (NCT) and German Cancer Research Center (DKFZ), Department of Translational Oncology, Heidelberg, Germany.,Section for Personalized Oncology, University Hospital Heidelberg, Heidelberg, Germany
| | - R Penzel
- Department of Pathology, University Hospital Heidelberg, Heidelberg, Germany
| | - A Enk
- Department of Dermatology and National Center for Tumor Diseases (NCT), University Hospital Heidelberg, Heidelberg, Germany
| | - J C Hassel
- Department of Dermatology and National Center for Tumor Diseases (NCT), University Hospital Heidelberg, Heidelberg, Germany
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Kluge S, Bekeschus S, Bender C, Benkhai H, Sckell A, Below H, Stope MB, Kramer A. Investigating the Mutagenicity of a Cold Argon-Plasma Jet in an HET-MN Model. PLoS One 2016; 11:e0160667. [PMID: 27584003 PMCID: PMC5008819 DOI: 10.1371/journal.pone.0160667] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 07/24/2016] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE So-called cold physical plasmas for biomedical applications generate reactive oxygen and nitrogen species and the latter can trigger DNA damage at high concentrations. Therefore, the mutagenic risks of a certified atmospheric pressure argon plasma jet (kINPen MED) and its predecessor model (kINPen 09) were assessed. METHODS Inner egg membranes of fertilized chicken eggs received a single treatment with either the kINPen 09 (1.5, 2.0, or 2.5 min) or the kINPen MED (3, 4, 5, or 10 min). After three days of incubation, blood smears (panoptic May-Grünwald-Giemsa stain) were performed, and 1000 erythrocytes per egg were evaluated for the presence of polychromatic and normochromic nuclear staining as well as nuclear aberrations and binucleated cells (hen's egg test for micronuclei induction, HET-MN). At the same time, the embryo mortality was documented. For each experiment, positive controls (cyclophosphamide and methotrexate) and negative controls (NaCl-solution, argon gas) were included. Additionally, the antioxidant potential of the blood plasma was assessed by ascorbic acid oxidation assay after treatment. RESULTS For both plasma sources, there was no evidence of genotoxicity, although at the longest plasma exposure time of 10 min the mortality of the embryos exceeded 40%. The antioxidant potential in the egg's blood plasma was not significantly reduced immediately (p = 0.32) or 1 h (p = 0.19) post exposure to cold plasma. CONCLUSION The longest plasma treatment time with the kINPen MED was 5-10 fold above the recommended limit for treatment of chronic wounds in clinics. We did not find mutagenic effects for any plasma treatment time using the either kINPen 09 or kINPen MED. The data provided with the current study seem to confirm the lack of a genotoxic potential suggesting that a veterinary or clinical application of these argon plasma jets does not pose mutagenic risks.
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Affiliation(s)
- Susanne Kluge
- Institute of Hygiene and Environmental Medicine, University Medicine Greifswald, Walther-Rathenau-Str. 49a, 17485 Greifswald, Germany
| | - Sander Bekeschus
- Leibniz-Institute for Plasma Science and Technology, ZIK plasmatis, Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
- * E-mail:
| | - Claudia Bender
- Institute of Hygiene and Environmental Medicine, University Medicine Greifswald, Walther-Rathenau-Str. 49a, 17485 Greifswald, Germany
| | - Hicham Benkhai
- Institute of Hygiene and Environmental Medicine, University Medicine Greifswald, Walther-Rathenau-Str. 49a, 17485 Greifswald, Germany
| | - Axel Sckell
- Department of Trauma and Reconstructive Surgery, University Medicine Greifswald, Sauerbruchstr., 17475 Greifswald, Germany
| | - Harald Below
- Institute of Hygiene and Environmental Medicine, University Medicine Greifswald, Walther-Rathenau-Str. 49a, 17485 Greifswald, Germany
| | - Matthias B. Stope
- Department of Urology, University Medicine Greifswald, Sauerbruchstr., 17475 Greifswald, Germany
| | - Axel Kramer
- Institute of Hygiene and Environmental Medicine, University Medicine Greifswald, Walther-Rathenau-Str. 49a, 17485 Greifswald, Germany
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Bender C, Christen S, Hintermann E, Christen U. Absence of CXCL10 prolongs islet graft survival in an autoimmune mouse model for Type 1 Diabetes. DIABETOL STOFFWECHS 2015. [DOI: 10.1055/s-0035-1556570] [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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Bender C, Wulff-Molder D, Vogt H, Ritschl F, Meisel M. Synthese und Kristallstruktur des Bromdifluormethyl-triphenyl- phosphoniumbromids, [(C6H5)3PCF2Br]+ Br- / Synthesis and Crystal Structure of Bromodifluoromethyl-triphenylphosphonium Bromide, [(C6H5)3PCF2Br]+ Br-. ACTA ACUST UNITED AC 2014. [DOI: 10.1515/znb-2000-0206] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Difluorobromomethyl-triphenylphosphonium bromide [(C6H5)3PCF2Br]+ Br- (1) has been prepared by the reaction of triphenylphosphine with dibromodifluoro-methane in acetonitrile or methylene chloride. The colorless crystals are monoclinic, space group P 21/n, Z=4, a = 1067.1(2), b = 1488,5(2), c = 1178,2(2) pm, β = 95,67(3)°. The lattice contains Br- anions and [(C6H5)3PCF2Br]+ cations with a Br-Br distance of 322,33(11) pm.. For the title compound the results of AM 1, PM 3 ,and MNDO calculations are in good agreement with corresponding values determined by the X-ray analysis only in the case of PM 3.
The yellow-red [(C6H5)3PCF2Br]+ Br3
- (2) has been obtained by treating 1 with equimolar quantities of elemental bromine in methylene chloride solution.
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Affiliation(s)
- C. Bender
- Fachinstitut für Anorganische und Allgemeine Chemie, Institut für Chemie der Humboldt-Universität zu Berlin, Hessische Str. 1/2, D -10115 Berlin
| | - D. Wulff-Molder
- Fachinstitut für Anorganische und Allgemeine Chemie, Institut für Chemie der Humboldt-Universität zu Berlin, Hessische Str. 1/2, D -10115 Berlin
| | - H. Vogt
- Fachinstitut für Anorganische und Allgemeine Chemie, Institut für Chemie der Humboldt-Universität zu Berlin, Hessische Str. 1/2, D -10115 Berlin
| | - F. Ritschl
- Fachinstitut für Anorganische und Allgemeine Chemie, Institut für Chemie der Humboldt-Universität zu Berlin, Hessische Str. 1/2, D -10115 Berlin
| | - M. Meisel
- Fachinstitut für Anorganische und Allgemeine Chemie, Institut für Chemie der Humboldt-Universität zu Berlin, Hessische Str. 1/2, D -10115 Berlin
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Abstract
The efficacy of Tissue Tolerable Plasma (TTP) against ticks was tested, as data from the literature has demonstrated its efficacy against other acari. The study was carried out by using the KINPen09 (Argon as carrier gas) on Ixodes ricinus (n=24). Treatment times of 1 and 3 minutes led to a reversible inactivation of the ticks. After 5 min of treatment, they died. Thanks to the acaricidal effect of TPP, a new treatment strategy using the KINPen09 for tick-infested pets is now available.
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Affiliation(s)
- Claudia Bender
- Institute of Hygiene and Environmental Medicine, University Medicine, Greifswald, Germany
| | - Axel Kramer
- Institute of Hygiene and Environmental Medicine, University Medicine, Greifswald, Germany
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Matthes R, Hübner NO, Bender C, Koban I, Horn S, Bekeschus S, Weltmann KD, Kocher T, Kramer A, Assadian O. Efficacy of different carrier gases for barrier discharge plasma generation compared to chlorhexidine on the survival of Pseudomonas aeruginosa embedded in biofilm in vitro. Skin Pharmacol Physiol 2014; 27:148-57. [PMID: 24434726 DOI: 10.1159/000353861] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2012] [Accepted: 06/19/2013] [Indexed: 11/19/2022]
Abstract
Because of its antimicrobial properties, nonthermal plasma could serve as an alternative to chemical antisepsis in wound treatment. Therefore, this study investigated the inactivation of biofilm-embedded Pseudomonas aeruginosa SG81 by a surface barrier-discharged (SBD) plasma for 30, 60, 150 and 300 s. In order to optimize the efficacy of the plasma, different carrier gases (argon, argon admixed with 1% oxygen, and argon with increased humidity up to approx. 80%) were tested and compared against 0.1% chlorhexidine digluconate (CHG) exposure for 600 s. The antimicrobial efficacy was determined by calculating the difference between the numbers of colony-forming units (CFU) of treated and untreated biofilms. Living bacteria were distinguished from dead by fluorescent staining and confocal laser scanning microscopy. Both SBD plasmas and CHG showed significant antimicrobial effects compared to the untreated control. However, plasma treatment led to a higher antimicrobial reduction (argon plasma 4.9 log10 CFU/cm(2), argon with admixed oxygen 3 log10 CFU/cm(2), and with increased gas humidity 2.7 log10 CFU/cm(2) after 300 s) compared to CHG. In conclusion, SBD plasma is suitable as an alternative to CHG for inactivation of Pseudomonas aeruginosa embedded in biofilm. Further development of SBD plasma sources and research on the role of carrier gases and humidity may allow their clinical application for wound management in the future.
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Affiliation(s)
- R Matthes
- Institute for Hygiene and Environmental Medicine, University of Greifswald, Greifswald, Germany
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Partecke LI, Evert K, Haugk J, Doering F, Normann L, Diedrich S, Weiss FU, Evert M, Huebner NO, Guenther C, Heidecke CD, Kramer A, Bussiahn R, Weltmann KD, Pati O, Bender C, von Bernstorff W. Tissue tolerable plasma (TTP) induces apoptosis in pancreatic cancer cells in vitro and in vivo. BMC Cancer 2012; 12:473. [PMID: 23066891 PMCID: PMC3598726 DOI: 10.1186/1471-2407-12-473] [Citation(s) in RCA: 184] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2012] [Accepted: 10/10/2012] [Indexed: 01/23/2023] Open
Abstract
Background The rate of microscopic incomplete resections of gastrointestinal cancers including pancreatic cancer has not changed considerably over the past years. Future intra-operative applications of tissue tolerable plasmas (TTP) could help to address this problem. Plasma is generated by feeding energy, like electrical discharges, to gases. The development of non-thermal atmospheric plasmas displaying spectra of temperature within or just above physiological ranges allows biological or medical applications of plasmas. Methods We have investigated the effects of tissue tolerable plasmas (TTP) on the human pancreatic cancer cell line Colo-357 and PaTu8988T and the murine cell line 6606PDA in vitro (Annexin-V-FITC/DAPI-Assay and propidium iodide DNA staining assay) as well as in the in vivo tumour chorio-allantoic membrane (TUM-CAM) assay using Colo-357. Results TTP of 20 seconds (s) induced a mild elevation of an experimental surface temperature of 23.7 degree Celsius up to 26.63+/−0.40 degree Celsius. In vitro TTP significantly (p=0.0003) decreased cell viability showing the strongest effects after 20s TTP. Also, TTP effects increased over time levelling off after 72 hours (30.1+/−4.4% of dead cells (untreated control) versus 78.0+/−9.6% (20s TTP)). However, analyzing these cells for apoptosis 10s TTP revealed the largest proportion of apoptotic cells (34.8+/−7.2%, p=0.0009 versus 12.3+/−6.6%, 20s TTP) suggesting non-apoptotic cell death in the majority of cells after 20s TTP. Using solid Colo-357 tumours in the TUM-CAM model TUNEL-staining showed TTP-induced apoptosis up to a depth of tissue penetration (DETiP) of 48.8+/−12.3μm (20s TTP, p<0.0001). This was mirrored by a significant (p<0.0001) reduction of Ki-67+ proliferating cells (80.9+/−13.2% versus 37.7+/−14.6%, p<0.0001) in the top cell layers as well as typical changes on HE specimens. The bottom cell layers were not affected by TTP. Conclusions Our data suggest possible future intra-operative applications of TTP to reduce microscopic residual disease in pancreatic cancer resections. Further promising applications include other malignancies (central liver/lung tumours) as well as synergistic effects combining TTP with chemotherapies. Yet, adaptations of plasma sources as well as of the composition of effective components of TTP are required to optimize their synergistic apoptotic actions.
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Affiliation(s)
- Lars Ivo Partecke
- Department of General, Visceral, Thoracic and Vascular Surgery, University Medicine Greifswald, Ernst-Moritz-Arndt University, Greifswald, Germany.
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Korf U, Sonntag J, Bender C, Wiemann S, Aulmann S, Sinn P, Burwinkel B, Schneeweiss A, Beissbarth T. 847 Identification of a Biomarker Signature to Predict the Need for Chemotherapy in Patients With Hormone Receptor Positive Breast Cancer. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71480-6] [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: 10/28/2022]
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Matthes R, Bekeschus S, Bender C, Koban I, Hübner NO, Kramer A. Pilot-study on the influence of carrier gas and plasma application (open resp. delimited) modifications on physical plasma and its antimicrobial effect against Pseudomonas aeruginosa and Staphylococcus aureus. GMS Krankenhhyg Interdiszip 2012; 7:Doc02. [PMID: 22558036 PMCID: PMC3334954 DOI: 10.3205/dgkh000186] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
INTRODUCTION Physical plasma is a promising new technology regarding its antimicrobial effects. This is especially accounting for treatment of bacterial infection of chronic wounds. Plasma can be generated with different carrier gases causing various biological effects. Screening of different carrier gases and plasma generation setups is therefore needed to find suitable compositions for highly effective antimicrobial plasma treatments and other applications. METHOD The plasma source used was a radio-frequency plasma jet which generates tissue tolerable plasma (TTP). The study compared the antimicrobial efficacy of air, argon, or helium plasma alone or admixed with 0.1%, 0.5%, and 1% oxygen against Pseudomonas aeruginosa (P. aeruginosa) and Staphylococcus aureus (S. aureus). Treatment took place in an environmentally open and delimited system. Therefore, bacteria were plated on agar and treated with plasma in a punctiform manner. The resulting inhibition zones were measured and the reduction factors were calculated by colony counting, respectively. RESULTS For S. aureus and P. aeruginosa, inhibition zones and overall reduction of colony forming units (CFU) on the agar plate were observed while an accumulative reduction of CFU dominated for S. aureus. The highest antimicrobial effect was shown in form of an inhibition zone for argon plasma with 0.1% oxygen admixture for both species. S. aureus was more sensitive for helium plasma with >0.1% oxygen admixture compared to P. aeruginosa which in turn was more sensitive for argon plasma with and without oxygen. The efficacy of air plasma was very low in comparison to the other gases. The treatment in a closed system predominantly enhanced the antimicrobial effect. The effect intensity varied for each treatment time and gas mixtures. DISCUSSION As expected, the antimicrobial effect mostly increased when increasing oxygen admixture to the carrier gases. The variation in bacterial growth and inhibition after exposure to different plasma gas compositions could be due to a varying generation of reactive oxygen species or radiation. CONCLUSION The applied plasma in a "closed system" accumulates bactericidal plasma species and might increase antimicrobial efficacy in clinical settings as in wound management involving multi-drug resistant bacteria.
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Affiliation(s)
- Rutger Matthes
- Institute for Hygiene and Environmental Medicine, University Medicine, Greifswald, Germany
| | - Sander Bekeschus
- Institute of Immunology and Transfusion Medicine, University Medicine, Greifswald, Germany
- ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Greifswald, Germany
| | - Claudia Bender
- Institute for Hygiene and Environmental Medicine, University Medicine, Greifswald, Germany
| | - Ina Koban
- Unit of Periodontology, Dental School, University Medicine, Greifswald, Germany
| | - Nils-Olaf Hübner
- Institute for Hygiene and Environmental Medicine, University Medicine, Greifswald, Germany
| | - Axel Kramer
- Institute for Hygiene and Environmental Medicine, University Medicine, Greifswald, Germany
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Hamza A, Keller M, Abdel-Kawi A, Bender C, Henschen M, Zieger W. Heterotope Gravidität – Fallbericht. Z Geburtshilfe Neonatol 2011. [DOI: 10.1055/s-0031-1293285] [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: 10/15/2022]
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Balaszczuk V, Bender C, Pereno GL, Beltramino CA. Alcohol-induced neuronal death in central extended amygdala and pyriform cortex during the postnatal period of the rat. Int J Dev Neurosci 2011; 29:733-42. [PMID: 21664448 DOI: 10.1016/j.ijdevneu.2011.05.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2010] [Revised: 05/12/2011] [Accepted: 05/25/2011] [Indexed: 02/06/2023] Open
Abstract
Mothers who consume alcohol during pregnancy may cause a neurotoxic syndrome defined as fetal alcohol spectrum disorder (FASD) in their offspring. This disorder is characterized by reduction in brain size, cognitive deficits and emotional/social disturbances. These alterations are thought to be caused by an alcohol-induced increase in apoptosis during neurodevelopment. Little is known about neuroapoptosis in the central extended amygdala and the pyriform cortex, which are key structures in emotional/social behaviors. The goal of this study was to determine the vulnerability of neuroapoptotic alcohol effects in those areas. Rats were administered alcohol (2.5g/kg s.c. at 0 and 2h) or saline on postnatal day (PND) 7, 15 and 20. The Amino-cupric-silver technique was used to evaluate neurodegeneration and immunohistochemistry to detect activated caspases 3-8 and 9 at 2h, 4, 6, 8, 12 and 24h after drug administration. We measured blood alcohol levels each hour, from 2 to 8h post second administration of alcohol in each of the ages studied. Results showed alcohol induced apoptotic neurodegeneration in the central extended amygdala on PND 7 and 15, and pyriform cortex on PND 7, 15 and 20. These structures showed activation of caspase 3 and 9 but not of caspase 8 suggesting that alcohol-induced apoptosis could occur by the intrinsic pathway. The pharmacokinetic differences between ages did not associate with the neurodegeneration age dependence. In conclusion, these limbic areas are damaged by alcohol, and each one has their own window of vulnerability during the postnatal period. The possible implications in emotional/social features in FASD are discussed.
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Affiliation(s)
- V Balaszczuk
- Instituto de Investigación Médica Mercedes y Martín Ferreyra, Friuli, Córdoba, Argentina.
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Bender C, Partecke LI, Kindel E, Döring F, Lademann J, Heidecke CD, Kramer A, Hübner NO. The modified HET-CAM as a model for the assessment of the inflammatory response to tissue tolerable plasma. Toxicol In Vitro 2011; 25:530-7. [DOI: 10.1016/j.tiv.2010.11.012] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2010] [Revised: 11/04/2010] [Accepted: 11/17/2010] [Indexed: 11/29/2022]
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Hülsmann H, Bender C, Rolff J, Fichtner I, Herwig R, Sültmann H, Kuner R. 333 Identification of drug-associated proteins in NSCLC xenograft models by reverse phase protein arrays. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)72040-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Kramer A, Assadian O, Frank M, Bender C, Hinz P. Prevention of post-operative infections after surgical treatment of bite wounds. GMS Krankenhhyg Interdiszip 2010; 5. [PMID: 20941334 PMCID: PMC2951099 DOI: 10.3205/dgkh000155] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
After reviewing the literature about the microbial spectrum, the risk factors of post-operative infections, and the results of surgical interventions, the following recommendation can be made for the management of bite wounds: fresh, open wounds: surgical debridement, if appropriate, then an antiseptic lavage with a fluid consisting of povidone iodine and ethanol (e.g., Betaseptic®), no antibiotics, primary wound closure nearly closed fresh wounds (e.g., cat bites): surgical debridement, if appropriate, dressing with an antiseptic-soaked compress for ~60 minutes with repeated soaking (e.g., Betaseptic®), no antibiotics older wounds after ~4 hours: surgical debridement, if appropriate, dressing with an antiseptic-soaked compress or bandage for ~60 minutes with repeated soaking (e.g., Betaseptic®), at the same time intravenous or dose-adapted oral antibiotics (Amoxicillin and/or clavulanic acid) older wounds after ~24 hours: surgical debridement, then antiseptic lavage (Betaseptic®), in case of clinically apparent infection or inflammation surgical revision with opening of wound and treatment with antibiotics according to resistogram (empirical start with Amoxicillin and/or clavulanic acid).
For each kind of bite wound, the patient’s tetanus immunization status as well as the risk of exposure to rabies have to be assessed. Similarly, the possibility of other infections, such as lues (Syphilis), hepatitis B (HBV), hepatitis C (HBC), hepatitis D (HDV) and HIV, in the rare case of a human bite wound, has to be taken into account.
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Affiliation(s)
- Axel Kramer
- Institute of Hygiene and Environmental Medicine, Ernst Moritz Arndt University, Greifswald, Germany
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Matthes R, Hübner NO, Bender C, Koban I, Weltmann KD, Kramer A. Screening test for quality control of surface barrier discharged plasma sources with the microorganism-agar test (MAT). GMS Krankenhhyg Interdiszip 2010; 5. [PMID: 20941344 PMCID: PMC2951102 DOI: 10.3205/dgkh000145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In the recent past, the antimicrobial applicability of tissue tolerable plasma (TTP) has been examined, and is increasing in importance. Many different plasma sources can be used medically. In order to obtain reliable test results by using plasma sources, it is essential not only to assess physical parameters but also to screen a use-oriented application of plasma sources. It is necessary to both determine the biological efficacy and establish uniform coverage of the treated surfaces. This article shows a simple screening method for this. We used newly inoculated agar plates with bacterial test organisms and treated the agar plates with two surface barrier discharged (SDB) plasmas. The carrier gas was argon and air.
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Affiliation(s)
- Rutger Matthes
- Institute for Hygiene and Environmental Medicine, University of Greifswald, Germany
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Svaldi J, Bender C, Tuschen-Caffier B. Explicit memory bias for positively valenced body-related cues in women with binge eating disorder. J Behav Ther Exp Psychiatry 2010; 41:251-7. [PMID: 20199768 DOI: 10.1016/j.jbtep.2010.02.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2009] [Revised: 01/27/2010] [Accepted: 02/08/2010] [Indexed: 12/15/2022]
Abstract
Overweight women with and without binge eating disorder (BED) are characterized by a marked body dissatisfaction, which may in part be due to the negative comments about their weight. Weight-related teasing and discrimination is reported both by healthy overweight women and women with BED, whereas body dissatisfaction is markedly increased among women with BED. Therefore, a memory bias for negatively valenced body-related cues is suspected to occur as a mediating factor in women with BED. In an experimental study, 18 women with BED were compared to 18 overweight healthy female controls (HC) on a free recall task containing four word categories: positively valenced with and without body-related content and negatively valenced with and without body-related content. While both groups showed a bias towards negatively valenced shape-/weight-related words, women with BED retrieved positively valenced shape-/weight-related words significantly less often compared to overweight HC. Findings suggest that it may be the reduced ability to attend to positively valenced shape-/weight-related information, rather than the activation of negative body schemata that differentiates overweight women with BED from overweight women without BED. Results are discussed in the context of cognitive biases in the maintenance of body dissatisfaction.
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Affiliation(s)
- J Svaldi
- Department of Clinical Psychology and Psychotherapy, University of Freiburg, Engelbergerstrasse 41, 79106 Freiburg, Germany.
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Bender C, Rassetto M, de Olmos J, de Olmos S, Lorenzo A. Involvement of AMPA/kainate-excitotoxicity in MK801-induced neuronal death in the retrosplenial cortex. Neuroscience 2010; 169:720-32. [DOI: 10.1016/j.neuroscience.2010.05.007] [Citation(s) in RCA: 7] [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] [Received: 02/03/2010] [Revised: 04/22/2010] [Accepted: 05/03/2010] [Indexed: 11/16/2022]
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Hammann A, Huebner NO, Bender C, Ekkernkamp A, Hartmann B, Hinz P, Kindel E, Koban I, Koch S, Kohlmann T, Lademann J, Matthes R, Müller G, Titze R, Weltmann KD, Kramer A. Antiseptic efficacy and tolerance of tissue-tolerable plasma compared with two wound antiseptics on artificially bacterially contaminated eyes from commercially slaughtered pigs. Skin Pharmacol Physiol 2010; 23:328-32. [PMID: 20588084 DOI: 10.1159/000314724] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Accepted: 04/26/2010] [Indexed: 11/19/2022]
Abstract
AIM To compare the tissue tolerance and efficacy of two wound antiseptics with tissue-tolerable plasma (TTP) on enucleated contaminated eyes from slaughtered pigs in order to draw consequences for the use of TTP on wounds. METHOD The corneas of extracted eyes were contaminated with Staphylococcus aureus or Pseudomonas aeruginosa. One and 10 min after application of 10% povidone (PVP)-iodine and 0.04% polyhexanide, respectively, the eyes were rinsed with inactivating solution. To test TTP, the plasma pen meandered over the eyes at a speed of 30 mm/s and a distance of 5 mm; the eyes were then rinsed with balanced salt solution. The reduction factor was calculated by the difference between the logarithm of colony-forming units in the rinse before and after antisepsis or TTP application. RESULTS The efficacy of TTP (reduction factor 2.4-2.9) was significantly higher (p < 0.001) than that of PVP-iodine and polyhexanide (reduction factor 1.7-2.1). CONCLUSION TTP is more effective than the tested wound antiseptics. The lack of histological damage to the eyes of slaughtered pigs would seem to make its use as a wound antiseptic a viable alternative. In contrast to antiseptics, it supplies additional energy in the form of heat, electric fields and radicals by TTP.
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Affiliation(s)
- A Hammann
- Institute of Hygiene and Environmental Medicine, University of Greifswald, Greifswald, Germany.
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Bender C, Cavelius C, Zabel B, Kirschner J, Korinthenberg R, Henschen M. Kongenitale myotubuläre Myopathie als seltene Ursache einer postnatalen Asphyxie – Fallbeispiel. Klin Padiatr 2010. [DOI: 10.1055/s-0030-1261508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Merzkirch C, Bender C, Lichte K, Schwanz T, Do Duc L, Henschen M. Serratia marcescens als Ursache für eine Meningoenzephalitis mit multiplen Hirnabszessen bei einem Neugeborenem. Klin Padiatr 2010. [DOI: 10.1055/s-0030-1261531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Bender C, Neumann KY, Komini E, Enders M, Schwanz T, Henschen M. Zytomegalie (CMV) – die häufigste konnatale Infektion des Neugeborenen und doch noch ohne „State of the Art“…. Klin Padiatr 2010. [DOI: 10.1055/s-0030-1261575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Starmann J, Blaich S, Bender C, Armbruster H, Mannsperger H, Lange B, Korf U, Sültmann H. 761 Reverse-phase protein arrays as a tool to discover mutation-associated alterations in cell signaling pathways. EJC Suppl 2010. [DOI: 10.1016/s1359-6349(10)71557-3] [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: 10/19/2022] Open
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Kienle N, Bender C, Neumann KY, Seeborg K, Kerst G, Henschen M. Hydrops fetalis –Ätiologie und Differenzialdiagnose des Hydrops am Beispiel eines Frühgeborenen der 29. SSW. Klin Padiatr 2010. [DOI: 10.1055/s-0030-1261506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Hübner NO, Matthes R, Koban I, Rändler C, Müller G, Bender C, Kindel E, Kocher T, Kramer A. Efficacy of Chlorhexidine, Polihexanide and Tissue-Tolerable Plasma against Pseudomonas aeruginosa Biofilms Grown on Polystyrene and Silicone Materials. Skin Pharmacol Physiol 2010; 23 Suppl:28-34. [DOI: 10.1159/000318265] [Citation(s) in RCA: 75] [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: 11/19/2022]
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de Olmos S, Bender C, de Olmos JS, Lorenzo A. Neurodegeneration and prolonged immediate early gene expression throughout cortical areas of the rat brain following acute administration of dizocilpine. Neuroscience 2009; 164:1347-59. [PMID: 19772897 DOI: 10.1016/j.neuroscience.2009.09.022] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2009] [Accepted: 09/13/2009] [Indexed: 10/20/2022]
Abstract
N-methyl-d-aspartate receptor antagonist drugs (NMDA-A), such as dizocilpine (MK801), induce long-lasting behavioral disturbances reminiscent to psychotic disorders in humans. To identify cortical structures affected by NMDA-A, we used a single dose of MK801 (10 mg/kg) that caused low and high neurodegeneration in intact and orchiectomized male rats, respectively. Degenerating somas (neuronal death) and axonal/synaptic endings (terminal degeneration) were depicted by a silver technique, and functionally affected cortical neuronal subpopulations by Egr-1, c-Fos, and FosB/DeltaFosB-immunolabeling. In intact males, MK801 triggered a c-Fos induction that remained high for more than 24 h in selected layers of the retrosplenial, somatosensory and entorhinal cortices. MK801-induced neurodegeneration reached its peak at 72 h. Degenerating somas were restricted to layer IV of the granular subdivision of the retrosplenial cortex, and were accompanied by suppression of Egr-1 immunolabeling. Terminal degeneration extended to selected layers of the retrosplenial, somatosensory and parahippocampal cortices, which are target areas of retrosplenial cortex. Induction of FosB/DeltaFosB by MK801 also extended to the same cortical layers affected by terminal degeneration, likely reflecting the damage of synaptic connectivity. In orchiectomized males, the neurodegenerative and functional effects of MK801 were exacerbated. Degenerative somas in layer IV of the retrosplenial cortex significantly increased, with a parallel enhancement of terminal degeneration and FosB/DeltaFosB-expression in the mentioned cortical structures, but no additional areas were affected. These observations reveal that synaptic dysfunction/degeneration in the retrosplenial, somatosensory and parahippocampal cortices might underlie the long-lasting impairments induced by NMDA-A.
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Affiliation(s)
- S de Olmos
- Instituto de Investigación Médica Mercedes y Martín Ferreyra (INIMEC-CONICET), Friuli 2434, 5016-Córdoba, Argentina
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Bender C, Komini E, Roth A, Zieger B, Rädecke J, Henschen M. Erfolgreiche konservative Therapie einer akzidentellen Perforation des Ösophagus bei einem extremen Frühgeborenen. Z Geburtshilfe Neonatol 2009. [DOI: 10.1055/s-0029-1223150] [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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Neumann KYE, Kienle N, Henschen M, Grünert S, Pohl M, Bender C. Notfallmäßige Versorgung sowie Differentialdiagnose einer lebensbedrohlichen Elektrolytentgleisung beim Neugeborenen. Z Geburtshilfe Neonatol 2009. [DOI: 10.1055/s-0029-1223042] [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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Bölke C, Bender C, Keller M, Hildebrandt D, Henkes M, Henschen M. Sinusarrest bei einem Frühgeborenen: ungewöhnliche Nebenwirkung nach pränataler Chemotherapie. Z Geburtshilfe Neonatol 2009. [DOI: 10.1055/s-0029-1223078] [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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Martinsohn-Schittkowski W, Bender C, Tolzin C. ADHS – Bekanntheit allein heilt nicht. Gesundheitswesen 2009; 71:102-10; quiz 111-4. [DOI: 10.1055/s-2008-1067556] [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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Oberst A, Bender C, Green DR. Living with death: the evolution of the mitochondrial pathway of apoptosis in animals. Cell Death Differ 2008; 15:1139-46. [PMID: 18451868 DOI: 10.1038/cdd.2008.65] [Citation(s) in RCA: 167] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The mitochondrial pathway of cell death, in which apoptosis proceeds following mitochondrial outer membrane permeabilization, release of cytochrome c, and APAF-1 apoptosome-mediated caspase activation, represents the major pathway of physiological apoptosis in vertebrates. However, the well-characterized apoptotic pathways of the invertebrates C. elegans and D. melanogaster indicate that this apoptotic pathway is not universally conserved among animals. This review will compare the role of the mitochondria in the apoptotic programs of mammals, nematodes, and flies, and will survey our knowledge of the apoptotic pathways of other, less familiar model organisms in an effort to explore the evolutionary origins of the mitochondrial pathway of apoptosis.
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Affiliation(s)
- A Oberst
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
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Bender C, Roth A, Buck P, Hainmann I, Zieger B, Budde U, Dittrich S, Henschen M. Hämostaseologischer Notfall bei einem extremen Frühgeborenen: großer intrakardialer Thrombus mit konsekutivem Kreislaufversagen und Anurie – erfolgreiche Lysetherapie mit Urokinase und Orgaran. Z Geburtshilfe Neonatol 2008. [DOI: 10.1055/s-2008-1078924] [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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Lopes Videira D, Bender C, Komini E, Hofbeck M, Häberle J, Korall H, Scheible D, Trefz FK, Henschen M. N-Acetylglutamat-Synthetase-Defekt – die seltenste Form der Harnstoffzyklusstörungen – Therapiemöglichkeiten anhand eines Fallberichts. Z Geburtshilfe Neonatol 2008. [DOI: 10.1055/s-2008-1079039] [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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Eigner U, Holfelder M, Wild U, Bender C, Kirstahler M, Turnwald A, Witte W, Weizenegger M, Fahr A. O21 Evaluation of a rapid molecular dipstick assay for the direct detection of methicillin-resistant Staphylococcus aureus in clinical specimens. Int J Antimicrob Agents 2007. [DOI: 10.1016/s0924-8579(07)70020-1] [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: 11/25/2022]
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Roth A, Buck P, Zieger B, Buchenau W, Arand J, Holland-Cunz S, Bender C, Henschen M. Fallbericht: Interstitielles Emphysem mit ausgeprägter Pseudozystenbildung bei einem Frühgeborenen trotz milder Beatmung. Z Geburtshilfe Neonatol 2007. [DOI: 10.1055/s-2007-983244] [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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Lichte K, Bender C, Komini E, Korall H, Trefz FK, Henschen M. Fallbericht: Vorsicht mit der Diagnose Schütteltrauma! Z Geburtshilfe Neonatol 2007. [DOI: 10.1055/s-2007-983256] [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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Merzkirch C, Bender C, Glöckler M, Wissert J, Nicolai T, Henschen M. Asphyxierende Thoraxdysplasie bei Jeune-Syndrom – Therapeutische Optionen und Prognose anhand zweier Kasuistiken. Z Geburtshilfe Neonatol 2006. [DOI: 10.1055/s-2006-946270] [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: 10/19/2022]
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Bender C, Baden W, Glöckler M, Ziemer G, Schäfer J, Hofbeck M, Henschen M. Stridor congenitus – im Einzelfall eine differentialdiagnostische Herausforderung. Z Geburtshilfe Neonatol 2006. [DOI: 10.1055/s-2006-946209] [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: 10/19/2022]
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Fletcher J, Bender C, Budowle B, Cobb WT, Gold SE, Ishimaru CA, Luster D, Melcher U, Murch R, Scherm H, Seem RC, Sherwood JL, Sobral BW, Tolin SA. Plant pathogen forensics: capabilities, needs, and recommendations. Microbiol Mol Biol Rev 2006; 70:450-71. [PMID: 16760310 PMCID: PMC1489535 DOI: 10.1128/mmbr.00022-05] [Citation(s) in RCA: 121] [Impact Index Per Article: 6.7] [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: 11/20/2022] Open
Abstract
A biological attack on U.S. crops, rangelands, or forests could reduce yield and quality, erode consumer confidence, affect economic health and the environment, and possibly impact human nutrition and international relations. Preparedness for a crop bioterror event requires a strong national security plan that includes steps for microbial forensics and criminal attribution. However, U.S. crop producers, consultants, and agricultural scientists have traditionally focused primarily on strategies for prevention and management of diseases introduced naturally or unintentionally rather than on responding appropriately to an intentional pathogen introduction. We assess currently available information, technologies, and resources that were developed originally to ensure plant health but also could be utilized for postintroduction plant pathogen forensics. Recommendations for prioritization of efforts and resource expenditures needed to enhance our plant pathogen forensics capabilities are presented.
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Affiliation(s)
- J Fletcher
- Department of Entomology and Plant Pathology, Oklahoma State University, Stillwater, OK 74078, USA.
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Bender C, Baden W, Glöckler M, Ziemer G, Schäfer J, Hofbeck M, Henschen M. Stridor congenitus – im Einzelfall eine differentialdiagnostische Herausforderung. Z Geburtshilfe Neonatol 2006. [DOI: 10.1055/s-2006-943294] [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: 10/19/2022]
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Merzkirch C, Bender C, Glöckler M, Wissert J, Nicolai T, Henschen M. Asphyxierende Thoraxdysplasie bei Jeune-Syndrom – Therapeutische Optionen und Prognose anhand zweier Kasuistiken. Z Geburtshilfe Neonatol 2006. [DOI: 10.1055/s-2006-943355] [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: 10/19/2022]
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Park LS, Sarnoff R, Bender C, Korenbrot C. Impact of recent welfare and immigration reforms on use of Medicaid for prenatal care by immigrants in California. ACTA ACUST UNITED AC 2006; 2:5-22. [PMID: 16228728 DOI: 10.1023/a:1009583205346] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
This study investigates the impact of the recent welfare and immigration changes on the use of Medicaid by low-income pregnant immigrant women in California. The study presents findings from interviews with government officials, safety-net prenatal care providers, and immigrant advocates who serve low-income pregnant Asian and Latina immigrants at the national, state, or local levels. These informants spoke of policy actions that affect immigrants' abilities to use Medicaid for coverage of prenatal care. These actions include (1) the sharing of information between the California Department of Health Services and the federal Immigration and Naturalization Service, (2) the slow and confusing implementation of the reforms, and (3) the intimidating Medicaid eligibility process. The findings demonstrate how the policies changed the immigrant women's relationship with safety-net prenatal care providers, and sparked intense actions on the part of their advocates to sustain the women's access to perinatal care.
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Affiliation(s)
- L S Park
- Ethnic Studies and Women's Studies Department, University of Colorado, Boulder, Colorado 80309, USA
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Kannan CV, Bender C, Ramsauer T, Franck P, Henschen M, Krüger M, Hentschel R. Primäre Intubation versus CPAP in der Erstversorgung von Frühgeborenen – eine retrospektive Studie. Z Geburtshilfe Neonatol 2005. [DOI: 10.1055/s-2005-871437] [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: 10/19/2022]
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Hentschel R, Franck P, Bender C, Müller C, Ramsauer T, Braun G, Abd ElMoneim E. Surfactantbehandlung und maschinelle Beatmung – Ergebnis einer prospektiven Studie. Z Geburtshilfe Neonatol 2005. [DOI: 10.1055/s-2005-871372] [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: 10/19/2022]
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Abstract
AIM Zygomatic implants have been introduced for the rehabilitation of patients with severe bone defects of the maxilla. The soft tissue aspects of the palatal emergence situation have not been described yet. The aim of this study was to evaluate the incidence and clinical impact of possible periimplant alterations of zygomatic implants. MATERIALS AND METHODS From 1998 to 2001 all patients with zygomatic implants were included into this study (24 patients, 37 zygomatic implants). One implant was lost in the loading phase giving a survival rate of 97%. Fourteen patients with 20 zygomatic implants fulfilled the inclusion criteria and were all available for the recall examination. Thirteen zygomatic implants were inserted in cases of severe maxillary atrophy, seven in cases of tumour-resection of the maxilla. Clinical examination and microbial analysis using a DNA probe was performed. The implants had a mean time in situ of 598 days (min: 326, max: 914). RESULTS Colonisation with periodontal pathogens was found at four of the 20 implants. A positive microbiologic result of the periimplant pocket and the maximum pocket probing depth were not statistically related. Nine of the 20 implants showed bleeding on probing, four of these had positive microbiologic results. At sites without bleeding on probing only negative microbiologic samples were found (p=0.026). The mean palatal and mesial probing depth was 1 mm deeper than at the vestibular and distal aspect. Thus at nine out of the 20 implants both, bleeding on probing and pocket probing depth >/=5 mm indicated soft tissue problems resulting in a success rate of only 55%. The patient's history (tumor versus atrophy) or smoking habits seemed not to have influence the situation. CONCLUSION These soft tissue problems should be taken into account if zygomatic implants are considered as an alternative therapy option in the maxilla.
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Affiliation(s)
- B Al-Nawas
- Oral and Maxillofacial Surgery, University Mainz, Augustusplatz 2, Mainz, Germany.
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Hentschel R, Franck P, Bender C, Krüger M, Henschen M, Fürste HO, Abd El-Moneim E, Braun G. Surfactantbehandlung und maschinelle Beatmung – Ergebnis einer prospektiven Studie. Z Geburtshilfe Neonatol 2004. [DOI: 10.1055/s-2004-829327] [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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50
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Germanakis I, Bender C, Hentschel R, Braun K, Dittrich S, Kececioglu D. Hypercontractile heart failure caused by catecholamine therapy in premature neonates. Acta Paediatr 2003; 92:836-8. [PMID: 12892164 DOI: 10.1080/08035250310002975] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
UNLABELLED Catecholamine treatment for hypotension is common practice in neonatal intensive care units. In the presence of left ventricular hypertrophy, the positive inotropic action of catecholamines with mainly beta-receptor specificity can lead to excessive hypercontractility and paradoxical hypotension. This reports presents two cases of hypercontractile heart failure during beta-agonist treatment in very low birthweight (VLBW) infants. Both patients (27 wk, 5 d; and 26 wk, 6 d of gestation) underwent surgical arterial duct ligation and coarctation repair. After operation they developed arterial hypotension that failed to respond to epinephrine (adrenaline) or dobutamine treatment. Echocardiography demonstrated a complete systolic obliteration of the left ventricular cavity. Epinephrine and dobutamine were stopped, and norepinephrine (noradrenaline) was successfully used to control the hypotension. CONCLUSION Treatment of hypotension with beta-agonists in VLBW infants with left ventricular hypertrophy can lead to hypercontractility and left ventricular obliteration with paradoxical hypotension. Careful echocardiographic monitoring is indicated in such cases.
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Affiliation(s)
- I Germanakis
- Department of Congenital Heart Disease, Albert-Ludwigs-University Hospital, Freiburg, Germany
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