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Maller T, Perel N, Simonato M, Harari E, Tager S, Fink D, Jacobson E, Glikson M, Dvir D. Large multinational evaluation of time to reintervention in patients undergoing bioprosthetic valve implantation during open heart surgery. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2151] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Bioprosthetic valves are increasingly utilized during open heart surgery in favor of mechanical valves. These tissue valves are prone for structural valve degeneration and failure, especially in young patients. Transcatheter aortic valve implantation (TAVI) is an appealing approach in these patients.
Purpose
To describe independent correlates for early need for reintervention.
Method
We used a large multicenter registry of patients (>45 years of age) with failed bioprosthetic surgical valves undergoing TAVI valve-in-valve (VinV) in either aortic or the mitral positions. Early reintervention was (<5 years between open-heart surgery and VinV). Multi-variable properties that were included: patient gender, age at open-heart surgery, valve size, baseline renal failure, position of valve implantation, and bioprosthetic valve label size.
Results
A total of 3,324 patients were included in the study (age at the time of open heart surgery 68.9+7.9 years). Median time to TAVI was 9 years (IQR 6–13 years). A total of 632 (19%) patients experienced early valve degeneration with median time to TAVI of only 3 years [IQR 1–5]. Patients with early degeneration were older than those without early degeneration (mean age at surgery was 72.8±9 years vs. 68.9±8 years; p<0.001). in addition, significant linear relation between older patient age and early valve degeneration (p for trend <0.001). Re-intervention in the mitral position was more common in the group of patients with early degeneration (24.4% vs 18.2% without early degeneration; p<0.001) Patient age and mitral valve position were independently associated with increased rate of early degeneration (OR 1.09 [1.08–1.11], p<0.001; OR 1.62 [1.31–2.01]; p<0.001 respectively).
Conclusions
In this large multicenter analysis of patients undergoing TAVR for failed bioprosthetic valves we identified old patient age and mitral valve (vs. aortic) as independent correlates for early intervention. A discrepancy with known association of young age and rapid bioprosthetic valve degeneration is to be determined.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- T Maller
- Shaare Zedek Medical Center , Jerusalem , Israel
| | - N Perel
- Shaare Zedek Medical Center , Jerusalem , Israel
| | - M Simonato
- Yale New Haven Hospital , New Haven , United States of America
| | - E Harari
- Shaare Zedek Medical Center , Jerusalem , Israel
| | - S Tager
- Shaare Zedek Medical Center , Jerusalem , Israel
| | - D Fink
- Shaare Zedek Medical Center , Jerusalem , Israel
| | - E Jacobson
- Shaare Zedek Medical Center , Jerusalem , Israel
| | - M Glikson
- Shaare Zedek Medical Center , Jerusalem , Israel
| | - D Dvir
- Shaare Zedek Medical Center , Jerusalem , Israel
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Mendlovic J, Merin O, Fink D, Tauber R, Jacobzon E, Tager S, Mimouni FB, Silberman S. The need for cardiac surgery differential tariffs in Israel at the era of aging population and emerging technology: Importance of procedure type and patient complexity as assessed by EuroSCORE. Isr J Health Policy Res 2021; 10:53. [PMID: 34488859 PMCID: PMC8419941 DOI: 10.1186/s13584-021-00488-4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 08/30/2021] [Indexed: 11/30/2022] Open
Abstract
Background Reimbursement for cardiac surgical procedures in Israel is uniform and does not account for diversity in costs of various procedures or for diversity in patient mix. In an era of new and costly technology coupled with higher risk patients needing more complex surgery, these tariffs may not adequately reflect the true financial burden on the caregivers. In the present study we attempt to determine whether case mix and complexity of procedures significantly affect cost to justify differential tariffs. Methods We included all patients undergoing cardiac surgery at Shaare Zedek Medical Center between the years 1993–2016. Patients were stratified according to (1) type of surgery and (2) clinical profile as reflected by the predicted operative risk according to the European System for Cardiac Operative Risk Evaluation (EuroSCORE). Approximate cost of each group of patients was estimated by the average number of days in the Intensive Care Unit and days in the postoperative ward multiplied by the respective daily costs as determined by the Ministry of Health. We then added the fixed cost of the components used in the operating room (manpower and disposables). The final estimated cost (the outcome variable) was then evaluated as it relates to type of surgery and clinical profile. ANOVA was used to analyze cost variability between groups, and backward regression analysis to determine the respective effect of the abovementioned variables on cost. Because of non-normal distribution, both costs and lengths of stay were Log-transformed. Results Altogether there were 5496 patients: 3863, 836, 685 and 112 in the isolated CABG, CABG + valve, 1 valve and 2 valves replacement groups. By ANOVA, the costs in all EuroSCORE subgroups were significantly different from each other, increasing with increased EuroSCORE subgroup. Cost was also significantly different among procedure groups, increasing from simple CABG to single valve surgery to CABG + valve surgery to 2-valve surgery. In backward stepwise multiple regression analysis, both type of procedure and EuroSCORE group significantly impacted cost. ICU stay and Ward stay were significantly but weakly related while EuroSCORE subgroup was highly predictive of both ICU stay and ward stay. Conclusions The cost of performing heart surgery today is directly influenced by both patient profile as well as type of surgery, both of which can be quantified. Modern day technology is costly yet has become mandatory. Thus reimbursement for heart surgery should be based on differential criteria, namely clinical risk profile as well as type of surgery. Our results suggest an urgent need for design and implementation of a differential tariff model in the Israeli reimbursement system. We suggest that a model using a fixed, average price according to the type of procedure costs, in addition to a variable hospitalization cost (ICU + ward) determined by the patient EuroSCORE or EuroSCORE subgroup should enable an equitable reimbursement to hospitals, based on their case mix.
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Affiliation(s)
- J Mendlovic
- Hospital Management of Shaare Zedek Medical Center, affiliated with the Hadassah-Hebrew University School of Medicine, PO Box 3235, Jerusalem, Israel.
| | - O Merin
- Hospital Management of Shaare Zedek Medical Center, affiliated with the Hadassah-Hebrew University School of Medicine, PO Box 3235, Jerusalem, Israel
| | - D Fink
- Department of Cardiothoracic Surgery, Shaare Zedek Medical Center, affiliated with the Hadassah-Hebrew University School of Medicine, Jerusalem, Israel
| | - R Tauber
- Department of Cardiothoracic Surgery, Shaare Zedek Medical Center, affiliated with the Hadassah-Hebrew University School of Medicine, Jerusalem, Israel
| | - E Jacobzon
- Department of Cardiothoracic Surgery, Shaare Zedek Medical Center, affiliated with the Hadassah-Hebrew University School of Medicine, Jerusalem, Israel
| | - S Tager
- Department of Cardiothoracic Surgery, Shaare Zedek Medical Center, affiliated with the Hadassah-Hebrew University School of Medicine, Jerusalem, Israel
| | - F B Mimouni
- Department of Neonatology, Sackler School of Medicine, Shaare Zedek Medical Center, Tel Aviv, Israel
| | - S Silberman
- Department of Cardiothoracic Surgery, Shaare Zedek Medical Center, affiliated with the Hadassah-Hebrew University School of Medicine, Jerusalem, Israel
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3
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Zheng S, Niu J, Geist B, Fink D, Xu Z, Zhou H, Wang W. A minimal physiologically based pharmacokinetic model to characterize colon TNF suppression and treatment effects of an anti-TNF monoclonal antibody in a mouse inflammatory bowel disease model. MAbs 2021; 12:1813962. [PMID: 32967523 PMCID: PMC7531524 DOI: 10.1080/19420862.2020.1813962] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Biotherapeutic drugs against tumor necrosis factor (TNF) are effective treatments for moderate to severe inflammatory bowel disease (IBD). Here, we evaluated CNTO 5048, an antimurine TNF surrogate monoclonal antibody (mAb), in a CD45RBhigh adoptive T cell transfer mouse colitis model, which allows examination of the early immunological events associated with gut inflammation and the therapeutic effects. The study was designed to quantitatively understand the effects of IBD on CNTO 5048 disposition, the ability of CNTO 5048 to neutralize pathogenic TNF at the colon under disease conditions, and the impact of dosing regimen on CNTO 5048 treatment effect. CNTO 5048 and TNF concentrations in both mice serum and colon homogenate were also measured. Free TNF concentrations in colon, but not in serum, were shown to correlate well with the colon pharmacodynamic readout, such as the summed histopathology score and neutrophil score. A minimal physiologically based pharmacokinetic (mPBPK) model was developed to characterize CNTO 5048 PK and disposition, as well as colon soluble TNF target engagement (TE). The mPBPK/TE model reasonably captured the observed data and provided a quantitative understanding of an anti-TNF mAb on its colon TNF suppression and therapeutic effect in a physiologically relevant IBD animal model. These results also provided insights into the potential benefits of using induction doses for the treatment of IBD patients.
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Affiliation(s)
- Songmao Zheng
- Biologics Development Sciences, Janssen BioTherapeutics (JBIO) , Spring House, PA, USA
| | - Jin Niu
- Biologics Development Sciences, Janssen BioTherapeutics (JBIO) , Spring House, PA, USA.,Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University at Buffalo, State University of New York , Buffalo, NY, USA
| | - Brian Geist
- Biologics Development Sciences, Janssen BioTherapeutics (JBIO) , Spring House, PA, USA
| | - Damien Fink
- Biologics Development Sciences, Janssen BioTherapeutics (JBIO) , Spring House, PA, USA
| | - Zhenhua Xu
- Clinical Pharmacology and Pharmacometrics, Quantitative Sciences , Spring House, PA, USA
| | - Honghui Zhou
- Clinical Pharmacology and Pharmacometrics, Quantitative Sciences , Spring House, PA, USA
| | - Weirong Wang
- Clinical Pharmacology and Pharmacometrics, Quantitative Sciences , Spring House, PA, USA
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Girgis S, Wang Lin SX, Pillarisetti K, Verona R, Vieyra D, Casneuf T, Fink D, Miao X, Chen Y, Stephenson T, Banerjee A, Hilder B, Russell JS, Smit J, Goldberg JD. Teclistamab and talquetamab modulate levels of soluble B-cell maturation antigen in patients with relapsed and/or refractory multiple myeloma. J Clin Oncol 2021. [DOI: 10.1200/jco.2021.39.15_suppl.8047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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
8047 Background: B-cell maturation antigen (BCMA, CD269) is a single transmembrane protein that is selectively expressed in the B-cell lineage and is a validated target for multiple myeloma. BCMA exists as both surface protein and as a free soluble form (sBCMA). γ-secretase activity at the transmembrane domain leads to a shed BCMA protein fragment of approximately 6 kilodalton that can exist as free circulating sBCMA in blood. Teclistamab and talquetamab are CD3 bispecific antibodies that have been developed to recruit CD3+ T-cells to BCMA+ or GPRC5D+ multiple myeloma (MM) cells, respectively. The objective of this work was to evaluate sBCMA in relapsed and/or refractory MM patients in response to treatment with teclistamab or talquetamab. Methods: Serum samples from relapsed and/or refractory MM patients in teclistamab and talquetamab phase 1 studies (64007957MMY1001 and 64407564MMY1001) were collected (at various timepoints between baseline and cycle 4 or end of treatment) and analyzed for sBCMA by an electrochemiluminescence ligand binding assay. Soluble BCMA data were quantitatively analyzed in reference to patient’s tumor burden and response, as well as pharmacokinetic data. Results: Teclistamab and talquetamab modulated levels of sBCMA in patients with high ( ≥ 50%) and low ( < 50%) frequency of tumor plasma cells (TPCs), as well as in high and low risk cytogenetic groups. In cycle 3, majority of the responders had reduction in sBCMA [88% (50 out of 57) for teclistamab and 98% (49 out of 50) for talquetamab] compared to baseline. On the contrary, non-responders (progressive disease, stable disease, or minimal response) seemed to show an increase in sBCMA [80% (33 out of 41) for teclistamab and 49% (24 out of 49) for talquetamab] from baseline. Patients with deep responses tend to have higher magnitude of sBCMA reduction compared to others. Based on few patients who responded to teclistamab or talquetamab and then relapsed, sBCMA seemed to have an initial reduction followed by an increase in the levels. Soluble BCMA corelated with % bone marrow TPCs. Majority of patients with plasmacytoma (limited data) seemed to have high sBCMA; suggesting sBCMA could be a comprehensive marker for tumor burden. Teclistamab preliminary population pharmacokinetic analysis showed that sBCMA did not appear to impact teclistamab exposure, suggesting that sBCMA was not acting as a sink for teclistamab. Conclusions: Teclistamab and talquetamab induced changes in levels of sBCMA that correlated with clinical activity, further supporting clinical development of these bispecific antibodies. Lastly, the results support that sBCMA is a potential surrogate marker of myeloma tumor burden, and as a valuable marker for response in MM patients. Clinical trial information: NCT03145181 and NCT03399799.
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Mans C, Fink D. Effects of commercial metronidazole and metronidazole benzoate suspensions on food intake in chinchillas. J Small Anim Pract 2020; 62:174-177. [PMID: 33260253 DOI: 10.1111/jsap.13276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 09/30/2020] [Accepted: 11/03/2020] [Indexed: 11/27/2022]
Abstract
OBJECTIVES To evaluate if commercially available metronidazole and metronidazole benzoate suspensions cause a reduction in food intake in healthy chinchillas and if the reduction in food intake is dose-dependent. MATERIALS AND METHODS Twelve chinchillas were used in a randomised, controlled, blinded, complete-crossover study. All treatments were administered orally every 12 hours for 3 days. Metronidazole (125 mg/mL) was administered at 20 mg/kg and metronidazole benzoate (25 mg/mL) was administered at 20 and 10 mg/kg. Food intake was recorded daily. The washout period between treatments was at least 14 days. RESULTS At 20 mg/kg PO q12h administration of both commercial suspensions resulted in a significant reduction of food intake. The greatest mean reduction in food intake occurred after 2 to 3 days of drug administration (metronidazole: -54 ± 25%; metronidazole benzoate: -44 ± 36%). After administration of metronidazole benzoate at 10 mg/kg PO q12h, the reduction in food intake was significantly less pronounced (-24 ± 36%), suggesting that negative effect of metronidazole on food intake in chinchillas is dose-dependent. Variation in metronidazole-induced food intake reduction differed widely between individual chinchillas. CLINICAL SIGNIFICANCE The oral administration of commercial metronidazole and metronidazole benzoate suspensions results in a dose-dependent clinically relevant reduction in food intake in chinchillas. Metronidazole should be used cautiously in this species and food intake should be monitored during treatment. Future studies are needed in order to determine if metronidazole at 10 mg/kg q12h is an effective therapeutic dosage in chinchillas.
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Affiliation(s)
- C Mans
- School of Veterinary Medicine, University of Wisconsin-Madison, 2015 Linden Drive, Madison, WI, 53706, USA
| | - D Fink
- School of Veterinary Medicine, University of Wisconsin-Madison, 2015 Linden Drive, Madison, WI, 53706, USA
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Yao Z, Loggia L, Fink D, Chevrier M, Marciniak S, Sharma A, Xu Z. Pharmacokinetics and Pharmacodynamics of JNJ-55920839, an Antibody Targeting Interferon α/ω, in Healthy Subjects and Subjects with Mild-to-Moderate Systemic Lupus Erythematosus. Clin Drug Investig 2020; 40:1127-1136. [PMID: 33085033 DOI: 10.1007/s40261-020-00978-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2020] [Indexed: 11/26/2022]
Abstract
BACKGROUND The interferon (IFN) pathway has been correlated with clinical and serological markers of disease activity in patients with systemic lupus erythematosus (SLE). OBJECTIVE The pharmacokinetics and pharmacodynamics of JNJ-55920839, a fully human immunoglobulin G1κ antibody targeting IFNα/ω, were investigated. METHODS In a double-blind, first-in-human study, Part A enrolled 48 healthy adults who received a single dose of placebo/JNJ-55920839 between 0.3 and 15 mg/kg intravenous (IV) or at 1 mg/kg subcutaneous (SC). Part B enrolled 26 adults with SLE who received placebo or JNJ-55920839 10 mg/kg IV 6 times biweekly. Pharmacokinetic parameters were calculated by noncompartmental analysis (NCA) and estimated by nonlinear mixed-effects modeling. RESULTS JNJ-55920839 pharmacokinetics following a single IV infusion exhibited a biphasic disposition in healthy subjects. Maximum plasma concentration (Cmax) and area under the concentration-time curve values increased dose-proportionally. Mean clearance (CL) after a single IV infusion ranged between 2.28 and 3.09 mL/kg/day. Absolute bioavailability after a single SC injection was ≥ 80.0%. Mean terminal elimination half-life (t1/2) was similar after IV (20.7 to 24.6 days) and SC administration (22.6 days). Steady state of JNJ-55920839 was achieved 6 weeks after multiple 10 mg/kg IV doses in subjects with SLE. Mean steady-state CL and t1/2 were 4.73 mL/kg/day and 14.8 days, respectively. A linear 2-compartment population pharmacokinetic model with 1st-order absorption and elimination adequately characterized the pharmacokinetics; parameters were consistent with NCA estimates. Higher CL was estimated in subjects with SLE compared with healthy subjects, after correcting for body weight. A trend of increased total IFNα/ω levels was observed after treatment with JNJ-55920839. CONCLUSION Pharmacokinetic and pharmacodynamic analyses of the data from this study demonstrated that there was biphasic disposition in both healthy subjects and subjects with SLE, CL was faster in subjects with SLE, and increases in total IFNα/ω levels were observed in both healthy subjects and subjects with SLE after treatment with JNJ-55920839, thus further development is supported. The study is registered at ClinicalTrials.gov NCT02609789.
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MESH Headings
- Administration, Intravenous
- Adult
- Antibodies, Monoclonal, Humanized/pharmacokinetics
- Antibodies, Monoclonal, Humanized/pharmacology
- Antibodies, Monoclonal, Humanized/therapeutic use
- Area Under Curve
- Biological Availability
- Double-Blind Method
- Female
- Healthy Volunteers
- Humans
- Infusions, Intravenous
- Injections, Subcutaneous
- Interferon-alpha/antagonists & inhibitors
- Lupus Erythematosus, Systemic/drug therapy
- Male
- Middle Aged
- Placebos
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Affiliation(s)
- Zhenling Yao
- Janssen Research and Development, LLC, Clin Pharm TA PA, SH32-10590, Welsh & McKean Road, Spring House, PA, 19477, USA
| | - Laura Loggia
- Janssen Research and Development, LLC, Clin Pharm TA PA, SH32-10590, Welsh & McKean Road, Spring House, PA, 19477, USA
| | - Damien Fink
- Janssen Research and Development, LLC, Clin Pharm TA PA, SH32-10590, Welsh & McKean Road, Spring House, PA, 19477, USA
| | - Marc Chevrier
- Janssen Research and Development, LLC, Clin Pharm TA PA, SH32-10590, Welsh & McKean Road, Spring House, PA, 19477, USA
| | - Stanley Marciniak
- Janssen Research and Development, LLC, Clin Pharm TA PA, SH32-10590, Welsh & McKean Road, Spring House, PA, 19477, USA
| | - Amarnath Sharma
- Janssen Research and Development, LLC, Clin Pharm TA PA, SH32-10590, Welsh & McKean Road, Spring House, PA, 19477, USA
| | - Zhenhua Xu
- Janssen Research and Development, LLC, Clin Pharm TA PA, SH32-10590, Welsh & McKean Road, Spring House, PA, 19477, USA.
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Nair-Gupta P, Diem M, Reeves D, Wang W, Schulingkamp R, Sproesser K, Mattson B, Heidrich B, Joseph J, Sendecki J, Foulk B, Chu G, Fink D, Jiao Q, Wu SJ, Packman K, Elsayed Y, Attar R, Gaudet F. Abstract 5662: JNJ-67571244: A novel anti-CD33 C2 domain binding bispecific antibody with potent T cell redirection activity. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-5662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
CD33 is expressed in 90% of acute myeloid leukemia (AML) patients with expression in both blasts and leukemic stem cells. The extracellular portion of CD33 consists of a V and a C2 Ig-like domain. A recent study showed that a single nucleotide polymorphism (SNP) rs12459419 (C >T; Ala14Val in exon 2 of CD33) was present in ~50% of the Western AML population and is associated with preferential expression of an alternatively spliced CD33 isoform lacking exon2, resulting in the deletion of the CD33 V domain. Interestingly, several CD33-antibody-based therapies, including gemtuzumab ozogamicin (GO), the only approved anti-CD33 antibody drug conjugate for AML, bind and recognize the V domain of CD33. Recent data demonstrated that patients with SNP rs12459419 CC genotype receiving GO had a significantly lower risk of relapse and increased event-free survival compared to patients with the CT or TT genotypes. Given the data with GO, it is reasonable to hypothesize that the activity of other V binding CD33 antibodies maybe limited to a subset (~50%, rs12459419 CC genotype) of AML patients. On the other hand, since the C2 domain is shared by all CD33 isoforms in AML patients, we hypothesized that a C2 binding anti-CD33 antibody could target AML cells more broadly regardless of their SNP status. Additionally, we reasoned that targeting the membrane proximal C2 domain would be a beneficial strategy for a CD3 redirection bispecific antibody as targeting epitopes closer to the membrane have been reported to mediate efficient synapse formation between T cells and target cells leading to potent anti-tumor responses. We developed JNJ-67571244, a novel human bispecific antibody capable of binding to the C2 domain of CD33, and to CD3 to induce T-cell recruitment and tumor cell cytotoxicity independently of their SNP status. JNJ-67571244 specifically binds to CD33-expressing target cells and induces cytotoxicity of CD33+ AML cell lines in vitro at 48 hours (EC50 values: KG-1=0.168 nM, MOLM-13=0.131 nM, Kasumi-1=0.05 nM and OCI-AML3=0.183 nM) with concomitant T cell activation (EC50 values: KG-1=0.066 nM, MOLM-13=0.028 nM, Kasumi-1=0.043 nM and OCI-AML3=0.05 nM) along with cytokine release. In contrast, JNJ-67571244 was unable to kill CD33- cancer cell lines (CARNAVAL and KG-1 cells with a genetic deletion of CD33), demonstrating the specificity of the cytotoxicity. JNJ-67571244 demonstrated statistically significant anti-tumor activity in vivo in established disseminated and subcutaneous mouse models of human AML (MOLM-13Luc and KG-1: up to 100% and 92% tumor growth inhibition respectively) through T cell redirection activity. Furthermore, this antibody could deplete CD33+ blasts (EC50=0.549 nM) in AML patient blood samples (n=7) in an ex-vivo assay at 48 hours with concurrent T cell activation (EC50=0.355 nM). JNJ-67571244 also cross-reacts with cyno CD33 and CD3 and was well-tolerated in cynomolgus monkeys up to 30 mg/kg along with a sustained reduction in CD33+ leukocyte populations. Lastly, JNJ-67571244 mediated efficient cytotoxicity of cell lines and primary samples regardless of their genotype status (SNP rs12459419 CC, CT and TT), suggesting a potential therapeutic advantage over competitor V-binding antibodies. JNJ-67571244 is currently in Phase 1 clinical trials to treat relapsed/refractory AML and high risk myelodysplastic syndrome (MDS) patients (NCT03915379).
Citation Format: Priyanka Nair-Gupta, Michael Diem, Dara Reeves, Weirong Wang, Robert Schulingkamp, Katrin Sproesser, Bethany Mattson, Bradley Heidrich, Jocelin Joseph, Jocelyn Sendecki, Brad Foulk, Gerald Chu, Damien Fink, Qun Jiao, Sheng-Jiun Wu, Kathryn Packman, Yusri Elsayed, Ricardo Attar, Francois Gaudet. JNJ-67571244: A novel anti-CD33 C2 domain binding bispecific antibody with potent T cell redirection activity [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 5662.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Qun Jiao
- Janssen R&D, US, SpringHouse, PA
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Zheng S, Shen F, Jones B, Fink D, Geist B, Nnane I, Zhou Z, Hall J, Malaviya R, Ort T, Wang W. Characterization of concurrent target suppression by JNJ-61178104, a bispecific antibody against human tumor necrosis factor and interleukin-17A. MAbs 2020; 12:1770018. [PMID: 32544369 PMCID: PMC7531573 DOI: 10.1080/19420862.2020.1770018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Tumor necrosis factor (TNF) and interleukin (IL)-17A are pleiotropic cytokines implicated in the pathogenesis of several autoimmune diseases including rheumatoid arthritis (RA) and psoriatic arthritis (PsA). JNJ-61178104 is a novel human anti-TNF and anti-IL-17A monovalent, bispecific antibody that binds to both human TNF and human IL-17A with high affinities and blocks the binding of TNF and IL-17A to their receptors in vitro. JNJ-61178104 also potently neutralizes TNF and IL-17A-mediated downstream effects in multiple cell-based assays. In vivo, treatment with JNJ-61178104 resulted in dose-dependent inhibition of cellular influx in a human IL-17A/TNF-induced murine lung neutrophilia model and the inhibitory effects of JNJ-61178104 were more potent than the treatment with bivalent parental anti-TNF or anti-IL-17A antibodies. JNJ-61178104 was shown to engage its targets, TNF and IL-17A, in systemic circulation measured as drug/target complex formation in normal cynomolgus monkeys (cyno). Surprisingly, quantitative target engagement assessment suggested lower apparent in vivo target-binding affinities for JNJ-61178104 compared to its bivalent parental antibodies, despite their similar in vitro target-binding affinities. The target engagement profiles of JNJ-61178104 in humans were in general agreement with the predicted profiles based on cyno data, suggesting similar differences in the apparent in vivo target-binding affinities. These findings show that in vivo target engagement of monovalent bispecific antibody does not necessarily recapitulate that of the molar-equivalent dose of its bivalent parental antibody. Our results also offer valuable insights into the understanding of the pharmacokinetics/pharmacodynamics and target engagement of other bispecific biologics against dimeric and/or trimeric soluble targets in vivo.
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Affiliation(s)
- Songmao Zheng
- Biologics Development Sciences, Janssen Biotherapeutics, Janssen R&D , Spring House, PA, USA
| | - Fang Shen
- Immunology Discovery, Clinical Pharmacology and Pharmacometrics, Janssen R&D , Spring House, PA, USA
| | - Brian Jones
- Immunology Discovery, Clinical Pharmacology and Pharmacometrics, Janssen R&D , Spring House, PA, USA
| | - Damien Fink
- Biologics Development Sciences, Janssen Biotherapeutics, Janssen R&D , Spring House, PA, USA
| | - Brian Geist
- Biologics Development Sciences, Janssen Biotherapeutics, Janssen R&D , Spring House, PA, USA
| | - Ivo Nnane
- Clinical Pharmacology and Pharmacometrics, Janssen R&D , Spring House, PA, USA
| | - Zhao Zhou
- Immunology Discovery, Clinical Pharmacology and Pharmacometrics, Janssen R&D , Spring House, PA, USA
| | - Jeff Hall
- Immunology Discovery, Clinical Pharmacology and Pharmacometrics, Janssen R&D , Spring House, PA, USA
| | - Ravi Malaviya
- Immunology Discovery, Clinical Pharmacology and Pharmacometrics, Janssen R&D , Spring House, PA, USA
| | - Tatiana Ort
- Immunology Discovery, Clinical Pharmacology and Pharmacometrics, Janssen R&D , Spring House, PA, USA
| | - Weirong Wang
- Clinical Pharmacology and Pharmacometrics, Janssen R&D , Spring House, PA, USA
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Nnane I, Frederick B, Yao Z, Raible D, Shu C, Badorrek P, van den Boer M, Branigan P, Duffy K, Baribaud F, Fink D, Yang TY, Xu Z. The first-in-human study of CNTO 7160, an anti-interleukin-33 receptor monoclonal antibody, in healthy subjects and patients with asthma or atopic dermatitis. Br J Clin Pharmacol 2020; 86:2507-2518. [PMID: 32415720 DOI: 10.1111/bcp.14361] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 04/17/2020] [Accepted: 04/22/2020] [Indexed: 12/30/2022] Open
Abstract
AIMS To assess safety, tolerability, pharmacokinetics (PK), pharmacodynamics (PD) and immunogenicity of CNTO 7160, an anti-interleukin-33 receptor (IL-33R) monoclonal antibody, in healthy subjects and patients with asthma or atopic dermatitis (AD). METHODS In Part 1 of this Phase I, randomized, double-blind, placebo-controlled study, healthy subjects (n = 68) received single ascending intravenous (IV) CNTO 7160 dose (0.001 to 10 mg/kg) or placebo. In Part 2, patients with mild asthma (n = 24) or mild AD (n = 15) received 3 biweekly IV CNTO 7160 doses (3 or 10 mg/kg) or placebo. RESULTS CNTO 7160 was generally well tolerated, with 1 serious adverse event of severe cellulitis reported (AD, CNTO 7160, 3 mg/kg). CNTO 7160 exhibited nonlinear PK (0.01-10 mg/kg). Mean clearance decreased with increasing dose (2.43 to 18.03 mL/d/kg). CNTO 7160 PK was similar between healthy subjects and patients with asthma or AD (3 or 10 mg/kg). Free sIL-33R suppression was rapid and dose dependent. Ex vivo inhibition of p38 phosphorylation of basophils was dose-dependent (1-10 mg/kg) and sustained inhibition (≥75%) was observed at higher doses (3 or 10 mg/kg). PK/PD modelling and simulation suggests that 1 mg/kg IV every 2 weeks provides adequate systemic drug exposure for sustained inhibition of p38 phosphorylation of basophils. Despite confirmation of target engagement, no apparent CNTO 7160 clinical activity was observed in patients (asthma or AD). CONCLUSION This first-in-human study provides PK, PD and safety data, supporting further clinical investigation of CNTO 7160 in patients with asthma and AD.
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Affiliation(s)
- Ivo Nnane
- Janssen Research & Development, LLC, Spring House, PA, USA
| | - Bart Frederick
- Janssen Research & Development, LLC, Spring House, PA, USA
| | - Zhenling Yao
- Janssen Research & Development, LLC, Spring House, PA, USA
| | - Donald Raible
- Janssen Research & Development, LLC, Spring House, PA, USA
| | - Cathye Shu
- Janssen Research & Development, LLC, Spring House, PA, USA
| | - Philipp Badorrek
- Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), Clinical Airway Research, Nikolai-Fuchs-Strasse 1, Hannover, 30625, Germany
| | | | | | - Karen Duffy
- Janssen Research & Development, LLC, Spring House, PA, USA
| | | | - Damien Fink
- Janssen Research & Development, LLC, Spring House, PA, USA
| | - Tong-Yuan Yang
- Janssen Research & Development, LLC, Spring House, PA, USA
| | - Zhenhua Xu
- Janssen Research & Development, LLC, Spring House, PA, USA
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Fülöp RH, Codilean AT, Wilcken KM, Cohen TJ, Fink D, Smith AM, Yang B, Levchenko VA, Wacker L, Marx SK, Stromsoe N, Fujioka T, Dunai TJ. Million-year lag times in a post-orogenic sediment conveyor. Sci Adv 2020; 6:eaaz8845. [PMID: 32596449 PMCID: PMC7304991 DOI: 10.1126/sciadv.aaz8845] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 05/08/2020] [Indexed: 06/11/2023]
Abstract
Understanding how sediment transport and storage will delay, attenuate, and even erase the erosional signal of tectonic and climatic forcings has bearing on our ability to read and interpret the geologic record effectively. Here, we estimate sediment transit times in Australia's largest river system, the Murray-Darling basin, by measuring downstream changes in cosmogenic 26Al/10Be/14C ratios in modern river sediment. Results show that the sediments have experienced multiple episodes of burial and reexposure, with cumulative lag times exceeding 1 Ma in the downstream reaches of the Murray and Darling rivers. Combined with low sediment supply rates and old sediment blanketing the landscape, we posit that sediment recycling in the Murray-Darling is an important and ongoing process that will substantially delay and alter signals of external environmental forcing transmitted from the sediment's hinterland.
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Affiliation(s)
- R.-H. Fülöp
- School of Earth, Atmospheric and Life Sciences, University of Wollongong, Wollongong, NSW 2522, Australia
- Australia’s Nuclear Science and Technology Organisation (ANSTO), Lucas Heights, NSW 2234, Australia
| | - A. T. Codilean
- School of Earth, Atmospheric and Life Sciences, University of Wollongong, Wollongong, NSW 2522, Australia
- ARC Centre of Excellence for Australian Biodiversity and Heritage, University of Wollongong, Wollongong, NSW 2522, Australia
| | - K. M. Wilcken
- Australia’s Nuclear Science and Technology Organisation (ANSTO), Lucas Heights, NSW 2234, Australia
| | - T. J. Cohen
- School of Earth, Atmospheric and Life Sciences, University of Wollongong, Wollongong, NSW 2522, Australia
- ARC Centre of Excellence for Australian Biodiversity and Heritage, University of Wollongong, Wollongong, NSW 2522, Australia
| | - D. Fink
- Australia’s Nuclear Science and Technology Organisation (ANSTO), Lucas Heights, NSW 2234, Australia
| | - A. M. Smith
- Australia’s Nuclear Science and Technology Organisation (ANSTO), Lucas Heights, NSW 2234, Australia
| | - B. Yang
- Australia’s Nuclear Science and Technology Organisation (ANSTO), Lucas Heights, NSW 2234, Australia
| | - V. A. Levchenko
- Australia’s Nuclear Science and Technology Organisation (ANSTO), Lucas Heights, NSW 2234, Australia
| | - L. Wacker
- Ion Beam Physics, ETH-Zürich, Zürich 8093, Switzerland
| | - S. K. Marx
- School of Earth, Atmospheric and Life Sciences, University of Wollongong, Wollongong, NSW 2522, Australia
| | - N. Stromsoe
- College of Engineering, IT and Environment, Charles Darwin University, Darwin, NT 0909, Australia
| | - T. Fujioka
- Australia’s Nuclear Science and Technology Organisation (ANSTO), Lucas Heights, NSW 2234, Australia
| | - T. J. Dunai
- Institute of Geology and Mineralogy, University of Cologne, Cologne 50674, Germany
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11
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Johnston A, Auer T, Fink D, Strimas-Mackey M, Iliff M, Rosenberg KV, Brown S, Lanctot R, Rodewald AD, Kelling S. Comparing abundance distributions and range maps in spatial conservation planning for migratory species. Ecol Appl 2020; 30:e02058. [PMID: 31838775 DOI: 10.1002/eap.2058] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 07/15/2019] [Accepted: 09/17/2019] [Indexed: 06/10/2023]
Abstract
Most spatial conservation planning for wide-ranging or migratory species is constrained by poor knowledge of species' spatiotemporal dynamics and is only based on static species' ranges. However, species have substantial variation in abundance across their range and migratory species have important spatiotemporal population dynamics. With growing ecological data and advancing analytics, both of these can be estimated and incorporated into spatial conservation planning. However, there is limited information on the degree to which including this information affects conservation planning. We compared the performance of systematic conservation prioritizations for different scenarios based on varying the input species' distributions by ecological metric (abundance distributions versus range maps) and temporal sampling resolution (weekly, monthly, or quarterly). We used the example of a community of 41 species of migratory shorebirds that breed in North America, and we used eBird data to produce weekly estimates of species' abundances and ranges. Abundance distributions at a monthly or weekly resolution led to prioritizations that most efficiently protected species throughout the full annual cycle. Conversely, spatial prioritizations based on species' ranges required more sites and left most species insufficiently protected for at least part of their annual cycle. Prioritizations with only quarterly species ranges were very inefficient as they needed to target 40% of species' ranges to include 10% of populations. We highlight the high value of abundance information for spatial conservation planning, which leads to more efficient and effective spatial prioritization for conservation. Overall, we provide evidence that spatial conservation planning for wide-ranging migratory species is most robust and efficient when informed by species' abundance information from the full annual cycle.
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Affiliation(s)
- A Johnston
- Cornell Lab of Ornithology, Cornell University, 159 Sapsucker Woods Road, Ithaca, New York, 14850, USA
- Conservation Science Group, Department of Zoology, University of Cambridge, The David Attenborough Building, Pembroke Street, Cambridge, CB2 3QZ, United Kingdom
| | - T Auer
- Cornell Lab of Ornithology, Cornell University, 159 Sapsucker Woods Road, Ithaca, New York, 14850, USA
| | - D Fink
- Cornell Lab of Ornithology, Cornell University, 159 Sapsucker Woods Road, Ithaca, New York, 14850, USA
| | - M Strimas-Mackey
- Cornell Lab of Ornithology, Cornell University, 159 Sapsucker Woods Road, Ithaca, New York, 14850, USA
| | - M Iliff
- Cornell Lab of Ornithology, Cornell University, 159 Sapsucker Woods Road, Ithaca, New York, 14850, USA
| | - K V Rosenberg
- Cornell Lab of Ornithology, Cornell University, 159 Sapsucker Woods Road, Ithaca, New York, 14850, USA
- American Bird Conservancy, The Plains, Virginia, 20198, USA
| | - S Brown
- Manomet Inc., P.O. Box 1770, Manomet, Massachusetts, 02345, USA
| | - R Lanctot
- U.S. Fish and Wildlife Service, 1011 East Tudor Road, MS 201, Anchorage, Alaska, 99503, USA
| | - A D Rodewald
- Cornell Lab of Ornithology, Cornell University, 159 Sapsucker Woods Road, Ithaca, New York, 14850, USA
- Department of Natural Resources, Cornell University, Ithaca, New York, 14853, USA
| | - S Kelling
- Cornell Lab of Ornithology, Cornell University, 159 Sapsucker Woods Road, Ithaca, New York, 14850, USA
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Akpalu DE, Frederick B, Nnane IP, Yao Z, Shen F, Ort T, Fink D, Dogmanits S, Raible D, Sharma A, Xu Z. Pharmacokinetics, Pharmacodynamics, Immunogenicity, Safety, and Tolerability of JNJ-61178104, a Novel Tumor Necrosis Factor-Alpha and Interleukin-17A Bispecific Antibody, in Healthy Subjects. J Clin Pharmacol 2019; 59:968-978. [PMID: 30776134 DOI: 10.1002/jcph.1393] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 01/28/2019] [Indexed: 12/19/2022]
Abstract
The safety, tolerability, pharmacokinetics, pharmacodynamics, and immunogenicity of JNJ-61178104, a novel anti-tumor necrosis factor-alpha (TNFα) and anti-interleukin-17A (IL-17A) bispecific antibody, were investigated in a placebo-controlled, first-in-human study. Healthy subjects (n = 54) received a single dose of JNJ-61178104 by either intravenous infusion (0.1, 0.3, 1, 3, and 10 mg/kg) or subcutaneous injection (1 mg/kg). Blood samples for measurement of serum JNJ-61178104 concentrations, total IL-17A, total TNFα, and detection of antidrug antibodies were collected for up to 16 weeks after dosing and assessed using electrochemiluminescence immunoassays. PK parameters were calculated by noncompartmental analysis and estimated by nonlinear mixed-effects modeling. JNJ-61178104 was generally well tolerated in healthy subjects. For the intravenous cohorts, mean maximum concentration, and area under the concentration-time curve values increased in a dose-proportional manner. Mean clearance ranged from 6.73 to 9.99 mL/day/kg, mean volume of distribution at terminal phase after intravenous administration ranged from 51.0 to 91.9 mL/kg, and mean half-life ranged from 4.3 to 9.7 days following intravenous administration. After a single subcutaneous dose of 1 mg/kg, median time to maximum concentration was 4.0 days, mean bioavailability was 52.0% and mean half-life was 5.3 days. A linear 2-compartment population model with first-order elimination adequately characterized the pharmacokinetics with parameters consistent with noncompartmental analysis estimates. Body weight and antidrug antibodies were significant covariates on JNJ-61178104 clearance. The time to reach mean maximum serum total TNFα and total IL-17A concentrations appeared to be dose dependent across the 0.1 mg/kg to 10 mg/kg IV dose groups. All subjects who received active treatment were antidrug antibody positive after dosing with JNJ-61178104.
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Affiliation(s)
- Derrick E Akpalu
- Clinical Pharmacology & Pharmacometrics, Janssen R&D, Spring House, PA, USA
| | - Bart Frederick
- Immunology Translational Medicine, Janssen R&D, Spring House, PA, USA
| | - Ivo P Nnane
- Clinical Pharmacology & Pharmacometrics, Janssen R&D, Spring House, PA, USA
| | - Zhenling Yao
- Clinical Pharmacology & Pharmacometrics, Janssen R&D, Spring House, PA, USA
| | - Fang Shen
- Immunology Discovery, Janssen R&D, Spring House, PA, USA
| | - Tatiana Ort
- Immunology Discovery, Janssen R&D, Spring House, PA, USA
| | - Damien Fink
- Biologics Development Sciences, Janssen R&D, Spring House, PA, USA
| | | | - Donald Raible
- Immunology Translational Medicine, Janssen R&D, Spring House, PA, USA
| | - Amarnath Sharma
- Clinical Pharmacology & Pharmacometrics, Janssen R&D, Spring House, PA, USA
| | - Zhenhua Xu
- Clinical Pharmacology & Pharmacometrics, Janssen R&D, Spring House, PA, USA
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13
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Axelrud G, Fink D, Walker K, Hasan S, Rao A, Deb N, Jhavar S. Decreased Frequency of MGMT Promoter Hypermethylation in Locally Relapsed Versus Locally Controlled p16 Negative Head and Neck Squamous Cell Carcinoma Patients after Chemoradiotherapy. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.780] [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: 11/29/2022]
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14
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Fink D, Drumond L, Basílio M, Sartori C, Andrade T, Santos N, Cremer M. Gota úrica visceral em bobo-pequeno (Puffinus puffinus) no sul do Brasil. ARQ BRAS MED VET ZOO 2018. [DOI: 10.1590/1678-4162-9916] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
RESUMO A gota úrica visceral é uma doença que acomete répteis, aves e mamíferos. Caracteriza-se por depósitos de cristais de urato e ácido úrico em diferentes órgãos da região visceral. O objetivo deste trabalho foi relatar um caso de gota úrica visceral em um indivíduo de bobo-pequeno (Puffinus puffinus) encontrado morto no litoral norte de Santa Catarina, sul do Brasil. No período de 20 de agosto de 2015 a 20 de abril de 2016, as praias dos municípios de Araquari, Barra do Sul, São Francisco do Sul e Itapoá foram monitoradas diariamente para o registro e a recuperação de tetrápodes marinhos mortos, incluindo aves marinhas. Foram encontrados e necropsiados 84 indivíduos. Um deles apresentou o pericárdio aderido ao miocárdio e com a coloração esbranquiçada. Os rins, o fígado e os pulmões continham inúmeros pontos esbranquiçados. A ocorrência dessa patologia na espécie foi de 1,19%. Trata-se do primeiro relato de bobo-pequeno com gota úrica visceral encontrado no Brasil.
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Affiliation(s)
- D. Fink
- Universidade da Região de Joinville, Brazil; Programa de pós-graduação em Saúde e Meio Ambiente, Brazil
| | - L. Drumond
- Universidade da Região de Joinville, Brazil
| | | | | | - T.R. Andrade
- Universidade da Região de Joinville, Brazil; Programa de pós-graduação em Saúde e Meio Ambiente, Brazil
| | | | - M.J. Cremer
- Universidade da Região de Joinville, Brazil; Programa de pós-graduação em Saúde e Meio Ambiente, Brazil
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15
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Dueckelmann AM, Fink D, Harter P, Heinzelmann V, Marth C, Mueller M, Reinthaller A, Tamussino K, Wimberger P, Sehouli J. The use of PIPAC (pressurized intraperitoneal aerosol chemotherapy) in gynecological oncology: a statement by the "Arbeitsgemeinschaft Gynaekologische Onkologie Studiengruppe Ovarialkarzinom (AGO-OVAR)", the Swiss and Austrian AGO, and the North-Eastern German Society of Gynaecologic Oncology. Arch Gynecol Obstet 2018; 297:837-846. [PMID: 29356953 DOI: 10.1007/s00404-018-4673-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Accepted: 01/12/2018] [Indexed: 01/07/2023]
Abstract
BACKGROUND Ovarian, tubal, and peritoneal carcinomas primarily affect the peritoneal cavity, and they are typically diagnosed at an advanced tumor stage (Foley, Rauh-Hain, del Carmen in Oncology (Williston Park) 27:288-294, 2013). In the course of primary surgery, postoperative tumor residuals are, apart from the tumor stage, the strongest independent factors of prognosis (du Bois, Reuss, Pujade-Lauraine, Harter, Ray-Coquard, Pfisterer in Cancer 115:1234-1244, 2009). Due to improved surgical techniques, including the use of multi-visceral procedures, macroscopic tumor clearance can be achieved in oncological centers, in most cases (Harter, Muallem, Buhrmann et al in Gynecol Oncol 121:615-619, 2011). However, to date, it has not been shown that peritoneal carcinomatosis is, per se, an independent factor of prognosis or that it excludes the achievement of tumor clearance. Several studies have shown that a preceding drug therapy in peritoneal carcinomatosis could positively influence the overall prognosis (Trimbos, Trimbos, Vergote et al in J Natl Cancer Inst 95:105-112, 2003). In relapses of ovarian carcinoma, studies have shown that peritoneal carcinomatosis is a negative predictor of complete tumor resection; however, when it is possible to resect the tumor completely, peritoneal carcinomatosis does not play a role in the prognosis (Harter, Hahmann, Lueck et al in Ann Surg Oncol 16:1324-1330, 2009). RESULTS PIPAC is a highly experimental method for treating patients with ovarian, tubal, and peritoneal cancer. To date, only three studies have investigated a total of 184 patients with peritoneal carcinomatosis (Grass, Vuagniaux, Teixeira-Farinha, Lehmann, Demartines, Hubner in Br J Surg 104:669-678, 2017). Only some of those studies were phase I/II studies that included PIPAC for patients with different indications and different cancer entities. It is important to keep in mind that the PIPAC approach is associated with relatively high toxicity. To date, no systematic dose-finding studies have been reported. Moreover, no studies have reported improvements in progression-free or overall survival associated with PIPAC therapy. CONCLUSIONS Randomized phase III studies are required to evaluate the effect of this therapy compared to other standard treatments (sequential or simultaneous applications with systemic chemotherapy). In cases of ovarian, tubal, and peritoneal cancer, PIPAC should not be performed outside the framework of prospective, controlled studies.
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Affiliation(s)
| | - D Fink
- University Hospital of Zurich, Zürich, Switzerland
| | - P Harter
- Kliniken Essen-Mitte, Essen, Germany
| | | | - C Marth
- Medical University Innsbruck, Innsbruck, Austria
| | - M Mueller
- University Hospiatl Bern, Bern, Switzerland
| | | | | | - P Wimberger
- University Hospital Dresden, Dresden, Germany
| | - J Sehouli
- Charité Universitätsmedizin Berlin, Berlin, Germany
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16
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Cowan KJ, Amaravadi L, Cameron MJ, Fink D, Jani D, Kamat M, King L, Neely RJ, Ni Y, Rhyne P, Riffon R, Zhu Y. Recommendations for Selection and Characterization of Protein Biomarker Assay Calibrator Material. AAPS J 2017; 19:1550-1563. [DOI: 10.1208/s12248-017-0146-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 06/20/2017] [Indexed: 11/30/2022]
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17
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Axelrud G, Fink D, Walker K, Nguyen Q, Hasan S, Rao A, Deb N, Jhavar S. MGMT Promoter Hypermethylation is a Common Event in Head and Neck Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1369] [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]
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18
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Bringolf L, Pestalozzi B, Fink D, Dedes K. Exploring prognostic factors for HER2-positive metastatic breast cancer: a retrospective cohort study in a major Swiss hospital. Swiss Med Wkly 2016; 146:w14393. [DOI: 10.4414/smw.2016.14393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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19
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Mirza U, Montavon C, Schötzau A, Fink D, Hacker N, Heinzelmann-Schwarz V. Impact of the new FIGO 2013 classification on survival analysis of stage I epithelial ovarian cancer. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1592964] [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] Open
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20
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Jacob F, Anugraham M, Schötzau A, Everest-Dass A, Bovin N, Huflejt M, Fedier A, Hacker N, Fink D, Packer N, Heinzelmann-Schwarz V. High-grade serous ovarian and peritoneal cancers display distinct genetic and post-translational signatures – a criterion to treat them differently? Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1593244] [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] Open
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21
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Scheiner D, Bracone G, Imesch P, Fink D, Hehl J, Imthurn B. Comparison of quartz vials with polypropylene vials for rapid cryopreservation of human ovarian tissue. J Ovarian Res 2016; 9:59. [PMID: 27670300 PMCID: PMC5037623 DOI: 10.1186/s13048-016-0268-1] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Accepted: 09/17/2016] [Indexed: 11/23/2022] Open
Abstract
Background Because higher survival of follicles during the freezing/thawing procedure improves the quality of cryopreserved tissue reimplanted after oncological therapies, defining an optimal method for human ovarian tissue cryopreservation remains a major issue in this field. One option to improve the cryopreservation procedure is to use better materials, i.e., vials with better conductivity. The aim of this study was to compare polypropylene (PP) with quartz vials. Between September 2012 and January 2013, eight patients were recruited. The ovarian cortex was cut into 3 slices, assigned randomly to a fresh and a cryopreserved group in PP (method B) or quartz vials (method C). Histological and immunohistochemical (IHC) analysis were used. For IHC three antibodies were analyzed: Ki67 (proliferation index), Bcl2 (anti apoptotic index) and Hsp70 (stress index). Results The majority of GCs showed positive staining for Bcl2 in both cryopreservation device, with higher expression in group C than in group B. Oocytes and their nuclei showed intense positive staining for ki67 in both methods B and C, and also a patch positive stromal cells staining for Ki67. Expression of hsp70 was not increased after cryopreservation. Conclusions Cryopreservation using quartz vials led to larger numbers of good follicles while maintaining consistent preservation for stromal cells and vessels.
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Affiliation(s)
- D Scheiner
- Department of Gynecology, University Hospital Zurich, Frauenklinikstrasse 10, 8091, Zurich, Switzerland.
| | - G Bracone
- Kantonsspital Luzern, Neue Frauenklinik - Kinderwunsch Zentrum, Andrologie-IVF Labor, Spitalstrasse 2, 6000, Luzern, Switzerland
| | - P Imesch
- Department of Gynecology, University Hospital Zurich, Frauenklinikstrasse 10, 8091, Zurich, Switzerland
| | - D Fink
- Department of Gynecology, University Hospital Zurich, Frauenklinikstrasse 10, 8091, Zurich, Switzerland
| | - J Hehl
- LMSC-Light Microscopy and Sreening Centre, ETH Zurich, Schafmattstrasse 18, 8093, Zurich, Switzerland
| | - B Imthurn
- Division of Reproductive Endocrinology, University Hospital Zurich, Frauenklinikstrasse 10, 8091, Zurich, Switzerland
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22
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Harter P, du Bois A, Mahner S, Pfisterer J, Ortmann O, Marth C, Fink D, Hilpert F, Wagner U, Sehouli J. Statement of the AGO Kommission Ovar, AGO Study Group, NOGGO, AGO Austria and AGO Switzerland Regarding the Use of Hyperthermic Intraperitoneal Chemotherapy (HIPEC) in Ovarian Cancer. Geburtshilfe Frauenheilkd 2016; 76:147-149. [PMID: 26941446 DOI: 10.1055/s-0035-1568169] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The AGO Kommission Ovar already published a statement in 2013, warning about the uncritical use of hyperthermic intraperitoneal chemotherapy (HIPEC) outside controlled studies. This statement has now been updated after the most recent literature was reviewed by AGO Kommission Ovar, the AGO Study Group, NOGGO, AGO Austria and AGO Switzerland. The authors conclude that HIPEC remains experimental. Its use is not recommended and should be rejected outside of prospective controlled trials.
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Affiliation(s)
- P Harter
- Arbeitsgemeinschaft Gynäkologische Onkologie Kommission Ovar
| | - A du Bois
- Arbeitsgemeinschaft Gynäkologische Onkologie Studiengruppe
| | - S Mahner
- Arbeitsgemeinschaft Gynäkologische Onkologie Kommission Ovar
| | - J Pfisterer
- Arbeitsgemeinschaft Gynäkologische Onkologie Studiengruppe
| | - O Ortmann
- Arbeitsgemeinschaft Gynäkologische Onkologie Kommission Ovar
| | - C Marth
- Arbeitsgemeinschaft Gynäkologische Onkologie Österreich
| | - D Fink
- Arbeitsgemeinschaft für Gynäkologische Onkologie und Brustgesundheit, Schweiz
| | - F Hilpert
- Arbeitsgemeinschaft Gynäkologische Onkologie Studiengruppe
| | - U Wagner
- Arbeitsgemeinschaft Gynäkologische Onkologie Kommission Ovar
| | - J Sehouli
- Nord-Ostdeutsche Gesellschaft für Gynäkologische Onkologie
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Briefi S, Fink D, Mattei S, Lettry J, Fantz U. Determination of discharge parameters via OES at the Linac4 H⁻ ion source. Rev Sci Instrum 2016; 87:02B104. [PMID: 26931986 DOI: 10.1063/1.4932009] [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: 06/05/2023]
Abstract
Optical emission spectroscopy (OES) measurements of the atomic Balmer series and the molecular Fulcher transition have been carried out at the Linac4 ion source in order to determine plasma parameters. As the spectroscopic system was only relatively calibrated, the data evaluation only yielded rough estimates of the plasma parameters (T(e) ≈ 1.2 eV, n(e) ≈ 1 × 10(19) m(-3), and n(H/)n(H2) ≈ 0.5 at standard operational parameters). The analysis of the Fulcher transition revealed a non-thermal "hockey-stick" rotational population of the hydrogen molecules. At varying RF power, the measurements at the on-axis line of sight (LOS) showed a peak in the rotational temperatures between 25 and 40 kW of RF power, whereas a steady decrease with power was observed at a tilted LOS, indicating the presence of strong plasma parameter gradients.
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Affiliation(s)
- S Briefi
- AG Experimentelle Plasmaphysik, Institut für Physik, Universität Augsburg, 86135 Augsburg, Germany
| | - D Fink
- Linac4 Ion Source Team, CERN-ABP, 1211 Geneva 23, Switzerland
| | - S Mattei
- Linac4 Ion Source Team, CERN-ABP, 1211 Geneva 23, Switzerland
| | - J Lettry
- Linac4 Ion Source Team, CERN-ABP, 1211 Geneva 23, Switzerland
| | - U Fantz
- AG Experimentelle Plasmaphysik, Institut für Physik, Universität Augsburg, 86135 Augsburg, Germany
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24
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Yvanes-Giuliani YAM, Fink D, Rose J, Waite TD, Collins RN. Isotopically exchangeable Al in coastal lowland acid sulfate soils. Sci Total Environ 2016; 542:129-135. [PMID: 26519574 DOI: 10.1016/j.scitotenv.2015.10.051] [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] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 10/08/2015] [Accepted: 10/09/2015] [Indexed: 06/05/2023]
Abstract
Periodic discharges of high concentrations of aluminium (Al) causing fish kills and other adverse effects occur worldwide in waterways affected by coastal lowland acid sulfate soils (CLASS). The exchangeability - a metal's ability to readily transfer between the soil solid- and solution-phases - of Al in these soils is therefore of particular importance as it has implications for metal transport, plant availability and toxicity to living organisms. In the present study, the concentrations of isotopically exchangeable Al (E values) were measured in 27 CLASS and compared with common salt extractions (i.e. KCl and CuCl2) used to estimate exchangeable soil pools of Al. E values of Al were high in the soils, ranging from 357 to 3040 mg·kg(-1). Exchangeable concentrations estimated using 1 M KCl were consistently lower than measured E values, although a reasonable correlation was obtained between the two values (E=1.68×AlKCl, r(2)=0.66, n=25). The addition of a 0.2 M CuCl2 extraction step improved the 1:1 agreement between extractable and isotopically exchangeable Al concentrations, but lead to significant mobilisation of non-isotopically exchangeable Al in surficial 'organic-rich' CLASS having E values<1000 mg·kg(-1). It was concluded that currently used (i.e. 1 M KCl) methodology severely underestimates exchangeable Al and total actual acidity values in CLASS and should be corrected by a factor similar to the one determined here.
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Affiliation(s)
- Yliane A M Yvanes-Giuliani
- UNSW Water Research Centre, School of Civil and Environmental Engineering, UNSW Australia, Sydney, NSW 2052, Australia; Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement, Aix-Marseille Université, Aix en Provence, France
| | - D Fink
- Centre Européen de Recherche et d'Enseignement des Géosciences de l'Environnement, Aix-Marseille Université, Aix en Provence, France
| | - J Rose
- Institute for Environmental Research, Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia
| | - T David Waite
- UNSW Water Research Centre, School of Civil and Environmental Engineering, UNSW Australia, Sydney, NSW 2052, Australia
| | - Richard N Collins
- UNSW Water Research Centre, School of Civil and Environmental Engineering, UNSW Australia, Sydney, NSW 2052, Australia.
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Abstract
Intra-bone marrow transplantation (IBMT) may improve the seeding efficiency of transplanted hematopoietic stem cells compared to the routinely used intravenous injection. Current IBMT protocols are optimized for ease of use and to improve experimental results. However, there have been no investigations to assess the impact of IBMT on animal welfare. Here, we report the results of pain assessment after IBMT and the effects of refinements to the current standard procedure. IBMT was performed in either the tibia or the femur of a recipient mouse under general anesthesia. Impact was determined using clinical scoring of different parameters (lameness, grip capacity, body weight loss, footprint analysis), behavioural tests (burrowing, open-field), monitoring of stress hormones and post-mortem histology. The results revealed that IBMT definitely induces severe post-operative distress. Although IBMT in the tibia is technically easier, the degree of impairment and the distress observed were consistently higher than for transplantation in the femur. A refinement for IBMT in the tibia was achieved by using 30- instead of 26-gauge needles and by sparing the patellar tendon. Consequently, for IBMT, we recommend either using the femur, or if the tibia is required due to its better feasibility, using our refined protocol. Furthermore, IBMT should definitely be limited to one leg per animal.
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Affiliation(s)
| | - T Yau
- Institute of Laboratory Animal Science
| | - D Fink
- Institute of Laboratory Animal Science
| | - A Tichy
- Platform Bioinformatics and Biostatistics
| | - R Palme
- Institute of Medical Biochemistry
| | - M Egerbacher
- Institute of Anatomy, Histology and Embryology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - T Rülicke
- Institute of Laboratory Animal Science
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26
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Puchalski T, Han C, McIntosh T, Brenner E, Fink D, Graham K, Jiao Q, Seetharam S, Takimoto C, Davis H, Zhou H. Abstract 2518: A novel preclinical study in cynomolgus monkeys examining CCL2 production rate and kinetic profile after escalating dose administration of anti-CCL2 human monoclonal antibody carlumab (CNTO 888). Immunology 2014. [DOI: 10.1158/1538-7445.am2012-2518] [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: 11/16/2022] Open
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27
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Wang W, Wang X, Doddareddy R, Fink D, McIntosh T, Davis HM, Zhou H. Mechanistic pharmacokinetic/target engagement/pharmacodynamic (PK/TE/PD) modeling in deciphering interplay between a monoclonal antibody and its soluble target in cynomolgus monkeys. AAPS J 2013; 16:129-39. [PMID: 24287601 DOI: 10.1208/s12248-013-9545-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Accepted: 11/04/2013] [Indexed: 11/30/2022]
Abstract
For therapeutic monoclonal antibodies (mAbs) against soluble ligands, the free ligand level can, theoretically, be used as a surrogate for efficacy. However, it can be extremely challenging technically to measure free ligand level in the presence of an excessive amount of antibody-ligand complex. The interplay among such mAbs, ligands, and the downstream pharmacodynamic (PD) effects has not been well defined. Using siltuximab and interleukin-6 (IL-6) as model compounds, a pharmacokinetic (PK)/target engagement (TE) model was established via simultaneous fitting of total siltuximab, total IL-6, and free IL-6 concentration profiles following a low dose of siltuximab in cynomolgus monkeys. The model adequately captured the observed data and provided estimation of model parameters with good precision. The PK/TE model was used to predict free IL-6 profiles at higher siltuximab doses, where the accurate determination of free IL-6 concentration became technically too difficult. The measured free IL-6 levels from the low-dose groups and PK/TE model-predicted free IL-6 levels from the high-dose groups were used to drive an indirect response TE/PD model to describe the concentration-effect relationship between free IL-6 and C-reactive protein (CRP). The TE/PD model adequately captured both CRP elevation and CRP suppression in response to free IL-6 concentration change from baseline with a linear stimulation function, providing direct evidence that the PK/TE model-predicted free IL-6 levels from the high-dose groups were accurate. Overall, the results provided an integrated PK/TE/PD modeling and bioanalytical framework for prediction of efficacious dose levels and duration of action for mAbs against soluble ligands with rapid turnover.
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Affiliation(s)
- Weirong Wang
- Biologics Clinical Pharmacology, Janssen R&D, Spring House, Pennsylvania, USA
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28
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Wagner U, Harter P, Hilpert F, Mahner S, Reuß A, du Bois A, Petru E, Meier W, Ortner P, König K, Lindel K, Grab D, Piso P, Ortmann O, Runnebaum I, Pfisterer J, Lüftner D, Frickhofen N, Grünwald F, Maier BO, Diebold J, Hauptmann S, Kommoss F, Emons G, Radeleff B, Gebhardt M, Arnold N, Calaminus G, Weisse I, Weis J, Sehouli J, Fink D, Burges A, Hasenburg A, Eggert C. S3-Guideline on Diagnostics, Therapy and Follow-up of Malignant Ovarian Tumours: Short version 1.0 - AWMF registration number: 032/035OL, June 2013. Geburtshilfe Frauenheilkd 2013; 73:874-889. [PMID: 24771937 PMCID: PMC3859160 DOI: 10.1055/s-0033-1350713] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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29
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Schellenbacher C, Kwak K, Fink D, Shafti-Keramat S, Huber B, Jindra C, Roden R, Kirnbauer R. O01.5 Efficacy of RG1-VLP Vaccination Against Genital and Cutaneous Human Papillomavirusesin Vitroandin Vivo. Sex Transm Infect 2013. [DOI: 10.1136/sextrans-2013-051184.0087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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30
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Kohl Schwartz A, Leo C, Rufibach K, Varga Z, Fink D, Gabriel N. Does increased tumor burden of sentinel nodes in breast cancer affect detection procedure? Eur J Surg Oncol 2013; 39:266-72. [DOI: 10.1016/j.ejso.2012.12.016] [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] [Received: 07/17/2012] [Revised: 12/03/2012] [Accepted: 12/17/2012] [Indexed: 10/27/2022] Open
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31
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Graf N, Rufibach K, Schmidt AM, Fehr M, Fink D, Baege AC. Frequency and risk factors of lower limb lymphedema following lymphadenectomy in patients with gynecological malignancies. EUR J GYNAECOL ONCOL 2013; 34:23-27. [PMID: 23589994] [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: 06/02/2023]
Abstract
OBJECTIVE Lower limb lymphedema (LLL) is a major cause of morbidity in patients with gynecological malignancies after surgical treatment involving lymph node (LN) dissection. The aim of this study was to estimate the prevalence of LLL in such patients and detect risk factors for its occurrence. MATERIALS AND METHODS A retrospective analysis of all patients undergoing lymphadenectomy in newly-diagnosed gynecological malignancies at the University Hospital of Zurich between 2000 and 2007 was performed. Data from 313 patients were collected. Twenty patients with pre-existing edema or missing information were excluded before analysis. Time-to-LLL was estimated using the Kaplan-Meier estimate and potential risk factors were evaluated by a Cox regression model. RESULTS Estimated prevalence of LLL one year after surgery was 32%, increasing to 58% eight years after surgery. Median time to diagnosis of LLL was 5.2 years. The number of removed lymph nodes was significantly associated with time-to-LLL. Diagnosis of postoperative lymphocysts and local infections were accompanied by a significantly elevated risk for the development of LLL. Furthermore, time-to-LLL decreased with a higher body mass index (BMI) of the patient. In contrast, chemo- and radiotherapy, age, positive LNs, site of lymphadenectomy, and type of cancer were not observed to be associated with the occurrence of LLL. CONCLUSIONS LLL is a frequent postoperative complication in patients undergoing lymphadenectomy for gynecological malignancies. It is thus imperative to sufficiently educate patients about the risk and symptoms of LLL prior to surgery. The data clearly show an association between time-to-LLL and number of dissected LNs, stressing the need to prospectively analyze the prevalence of LLL and carefully plan LN sampling as increasing knowledge is gained regarding the therapeutic benefit of sentinel and systemic lymphadenectomy in patients with different stages of gynecological malignancies.
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Affiliation(s)
- N Graf
- Department of Gynecology, University Hospital of Zurich, Zurich
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32
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Fink D, Nebel S, Aebi S, Nehme A, Howell S. Loss of DNA mismatch repair due to knockout of MSH2 or PMS2 results in resistance to cisplatin and carboplatin. Int J Oncol 2012; 11:539-42. [PMID: 21528244 DOI: 10.3892/ijo.11.3.539] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Loss of DNA mismatch repair is a common finding in hereditary nonpolyposis colon cancer as well as in many types of sporadic human tumors. The effect of loss of DNA mismatch repair activity on sensitivity to cisplatin and carboplatin was tested using MSH2 and PMS2 knockout cell lines. The knockout dMsh2 embryonic stem cell line was 2.1-fold more resistant to cisplatin and 1.7-fold more resistant to carboplatin when compared to the isogenic wild-type wt-2 cell line. Likewise, the PMS2(-/-) mouse fibroblasts were 1.9-fold more resistant to cisplatin and 1.5-fold more resistant to carboplatin when compared to the isogenic PMS2(+/+) fibroblasts. These findings demonstrate that loss of mismatch repair due to knockout of either MSH2 or PMS2 results in low-level resistance to cisplatin and carboplatin, drugs that form the same types of adducts in DNA. These data validate results previously obtained using non-isogenic mismatch repair-proficient and -deficient cell lines, and indicate that simple recognition of the cisplatin adduct by the MSH2/MSH6 heterodimer is not sufficient for full detector function, but that PMS2 is also required for the pro-apoptotic signal to be generated from this detector.
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Affiliation(s)
- D Fink
- UNIV CALIF SAN DIEGO,CTR CANC,LA JOLLA,CA 92093
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33
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Vogt SK, Aylmer D, Herzog GF, Wieler R, Signer P, Pellas P, Fiéni C, Tuniz C, Jull AJT, Fink D, Klein J, Middleton R. On the Bur Gheluai H5 chondrite and other meteorites with complex exposure histories. ACTA ACUST UNITED AC 2012. [DOI: 10.1111/j.1945-5100.1993.tb00250.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [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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34
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Garrison DH, Bogard DD, Albrecht AA, Vogt S, Herzog GF, Klein J, Fink D, Dezfouly-Arjomandy B, Middleton R. Cosmogenic nuclides in core samples of the Chico L6 chondrite: Evidence for irradiation under high shielding. ACTA ACUST UNITED AC 2012. [DOI: 10.1111/j.1945-5100.1992.tb00218.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [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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35
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Schmidt AM, Imesch P, Fink D, Egger H. Indications and long-term clinical outcomes in 282 patients with pelvic exenteration for advanced or recurrent cervical cancer. Gynecol Oncol 2012; 125:604-9. [DOI: 10.1016/j.ygyno.2012.03.001] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2011] [Revised: 02/27/2012] [Accepted: 03/01/2012] [Indexed: 11/26/2022]
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36
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Scheiner D, Perucchini D, Fink D, Betschart C. [Gynecology: urinary incontinence - mini-review and case reports]. Praxis (Bern 1994) 2012; 101:585-592. [PMID: 22535454 DOI: 10.1024/1661-8157/a000920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Although urinary incontinence affects one in three women, it is still a taboo topic. Today, effective conservative and surgical treatment options are available. When conservative therapies fail, minimally invasive surgical methods can be offered. The tension-free vaginal tape TVT is gold standard in the treatment of female stress urinary incontinence. In case of immobile urethra or in multi-morbid patients, the minimally invasive technique of periurethral injection of bulking agents may be useful. In patients with refractory overactive bladder, the intravesical injection of botulinum neurotoxin is available.
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Affiliation(s)
- D Scheiner
- Klinik für Gynäkologie, Universitätsspital Zürich, Zürich.
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37
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38
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Fink D, Barea J, Beck D, Blaum K, Böhm C, Borgmann C, Breitenfeldt M, Herfurth F, Herlert A, Kotila J, Kowalska M, Kreim S, Lunney D, Naimi S, Rosenbusch M, Schwarz S, Schweikhard L, Simkovic F, Stanja J, Zuber K. Q value and half-lives for the double-β-decay nuclide 110Pd. Phys Rev Lett 2012; 108:062502. [PMID: 22401059 DOI: 10.1103/physrevlett.108.062502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2011] [Revised: 01/17/2012] [Indexed: 05/31/2023]
Abstract
The 110Pd double-β decay Q value was measured with the Penning-trap mass spectrometer ISOLTRAP to be Q=2017.85(64) keV. This value shifted by 14 keV compared with the literature value and is 17 times more precise, resulting in new phase-space factors for the two-neutrino and neutrinoless decay modes. In addition a new set of the relevant matrix elements has been calculated. The expected half-life of the two-neutrino mode was reevaluated as 1.5(6)×10(20) yr. With its high natural abundance, the new results reveal 110Pd to be an excellent candidate for double-β decay studies.
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Affiliation(s)
- D Fink
- Max-Planck-Institut für Kernphysik, Heidelberg, Germany
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39
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Fedosseev VN, Berg LE, Fedorov DV, Fink D, Launila OJ, Losito R, Marsh BA, Rossel RE, Rothe S, Seliverstov MD, Sjödin AM, Wendt KDA. Upgrade of the resonance ionization laser ion source at ISOLDE on-line isotope separation facility: new lasers and new ion beams. Rev Sci Instrum 2012; 83:02A903. [PMID: 22380244 DOI: 10.1063/1.3662206] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The resonance ionization laser ion source (RILIS) produces beams for the majority of experiments at the ISOLDE on-line isotope separator. A substantial improvement in RILIS performance has been achieved through a series of upgrade steps: replacement of the copper vapor lasers by a Nd:YAG laser; replacement of the old homemade dye lasers by new commercial dye lasers; installation of a complementary Ti:Sapphire laser system. The combined dye and Ti:Sapphire laser system with harmonics is capable of generating beams at any wavelength in the range of 210-950 nm. In total, isotopes of 31 different elements have been selectively laser-ionized and separated at ISOLDE, including recently developed beams of samarium, praseodymium, polonium, and astatine.
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40
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Fichtner PP, Behar M, Olivieri CA, Livi RP, De Souza JP, Zawislak FC, Fink D, Biersack JP. Large Z1-range effect for Eu, Yb and Au ions implanted in amorphized silicon. ACTA ACUST UNITED AC 2011. [DOI: 10.1080/01422448608209721] [Citation(s) in RCA: 6] [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: 10/23/2022]
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41
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Seuser A, Wendel M, Navarrete-Duran M, Fink D, Auerswald G, Böhm P. [Analysis of muscle function with kinetic superficial EMG in children with haemophilia - recognizing subclinical changes, establishing individual therapy, quality control]. Hamostaseologie 2011; 31 Suppl 1:S38-S45. [PMID: 22057796] [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] [Received: 03/16/2011] [Accepted: 05/13/2011] [Indexed: 05/31/2023] Open
Abstract
UNLABELLED Electromyography (EMG) measures muscle electricity. It depends on muscle contraction and central motor control. Muscles react very sensitive on external signals (e. g. bleeding), The resulting changes can be shown in EMG. PATIENTS, METHODS A first study included 51 children and young adults from Costa Rica. They underwent a clinical examination and EMG of the hip, knee and ankle joints. Resting muscle tone, maximal isometric contraction and three typical isotonic movements of the joints were measured. First step of analysis was to characterize typical pathogenic changes in the muscles and to find a corresponding physical therapy to minimize these changes. RESULTS It showed that EMG is a good marker for muscle condition. It helps to individualize therapy and improve effectivity of physical and physiotherapeutic treatment of the locomotive system of children and young adults with hemophilia. It can help to recognize early subclinical changes and to control the outcome of therapeutic modalities.
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Affiliation(s)
- A Seuser
- Kaiser-Karl-Klinik, Orthopädische Abteilung, Bonn.
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42
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Leo C, Fink D. [Erythropoietinin oncologic therapy -- what so we know about the risks?]. Praxis (Bern 1994) 2011; 100:1239-1246. [PMID: 21971618 DOI: 10.1024/1661-8157/a000689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Erythropoietin is a glycoprotein predominantly produced in the kidney. It is an essential regulator of erythropoiesis in the bone marrow. Although cancer-associated anemia is caused by multiple factors, recombinant erythropoietin (rhuEpo) was widely used to treat and prevent this condition. Several clinical studies showed that the use of rhuEpo results in an efficient reduction of red blood cell transfusions in cancer-associated anemia. However, over the past twenty years, Epo and its receptor EpoR were found to be expressed also outside the hematopoietic system and in malignant tumors. This led to a discussion concerning potential risks associated with the application of erythropoiesis-stimulating agents in oncology.
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Affiliation(s)
- C Leo
- Klinik für Gynäkologie, Universitätsspital Zürich.
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43
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Shafei R, Baneke A, Fink D, Costello J. 012 Retrospective analysis of cervical spine radiography in a tertiary head injury centre. Arch Emerg Med 2011. [DOI: 10.1136/emermed-2011-200617.12] [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]
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44
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Abstract
INTRODUCTION The 'hospital standardised mortality ratio' (HSMR) has been used in England since 1999 to measure NHS hospital performance. Large variations in reported HSMR between English hospitals have recently led to heavy criticism of their use as a surrogate measure of hospital performance. This paper aims to review the mortality data for a consultant general surgeon contributed by his NHS trust over a 3-year period as part of the trust's HSMR calculation and evaluate the accuracy of coding the diagnoses and covariates for case mix adjustment. SUBJECTS AND METHODS The Dr Foster Intelligence database was interrogated to extract the NHS trust's HSMR benchmark data on inpatient mortality for the surgeon from 1 April 2006 to 31 March 2009 and compared to the hospital notes. RESULTS 30 patients were identified of whom 12 had no evidence of being managed by the surgeon. This represents a potential 40% inaccuracy rate in designating consultant responsibility. The remaining 18 patients could be separated into 'operative' (11 patients) and 'non-operative' (7 patients) groups. Only 27% in the operative group and 43% of the non-operative mortality group respectively had a Charlson co-morbidity index recorded despite 94% of the cases having significant co-morbidities CONCLUSIONS Highlighting crude and inaccurate clinician-specific mortality data when only 1-5% of deaths under surgical care may be associated with avoidable adverse events seems potentially irresponsible.
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Affiliation(s)
- O Aziz
- Department of Surgery, Lister Hospital, Stevenage, UK
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45
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Leo C, Kohl A, Sohr S, Fink D, Horn LC. CSRP2– ein „hypoxie-fixiertes“ Gen – ist im Zervixkarzinom exprimiert. Geburtshilfe Frauenheilkd 2011. [DOI: 10.1055/s-0031-1286473] [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: 10/17/2022] Open
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46
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Verreault M, Strutt D, Masin D, Fink D, Gill R, Bally MB. Development of glioblastoma cell lines expressing red fluorescence for non-invasive live imaging of intracranial tumors. Anticancer Res 2011; 31:2161-71. [PMID: 21737636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
UNLABELLED Glioblastoma (GBM) cell lines expressing red fluorescent proteins were evaluated as a tool for non-invasive imaging of orthotopic tumors. MATERIALS AND METHODS mKate2- and mCherry-transduced U251MG GBM lines were sorted by flow cytometry. The growth rates and drug sensitivity of the resulting cell lines were compared to those of the parental line. Following orthotopic implantation, mKate2-expressing cells were detected using multispectral imaging. RESULTS Flow cytometry-sorted fluorescent populations exhibiting growth curves that were comparable to those of the parental line were selected. mKate2-expressing cells were inoculated orthotopically and formed tumors which were visualized non-invasively, allowing monitoring of tumor growth over time and the assessment of tumor response to temozolomide drug treatment. CONCLUSION The strategy reported here led to the successful development of GBM models expressing mKate2 or mCherry. The fluorescence signal intensity measured in the brain of live animals correlates with tumor size, thus providing a method to assess tumor progression and response to treatment.
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Affiliation(s)
- M Verreault
- Experimental Therapeutics, British Columbia Cancer Agency, BCCRC, 675, W 10th avenue, Vancouver, BC, V5Z 1L3, Canada.
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Samartzis EP, Samartzis N, Noske A, Fedier A, Caduff R, Fink D, Imesch P. Expression pattern of GPR30 in endometriosis. Geburtshilfe Frauenheilkd 2011. [DOI: 10.1055/s-0031-1280499] [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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Wendel M, Navarrete-Duran M, Fink D, Auerswald G, Böhm P, Seuser A. Muskelfunktionsmessung mit kinetischem Oberflächen-EMG bei Kindern mit Hämophilie. Hamostaseologie 2011. [DOI: 10.1055/s-0037-1619748] [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: 10/17/2022] Open
Abstract
SummaryElectromyography (EMG) measures muscle electricity. It depends on muscle contraction and central motor control. Muscles react very sensitive on external signals (e. g. bleeding), The resulting changes can be shown in EMG.
Patients, methods A first study included 51 children and young adults from Costa Rica. They underwent a clinical examination and EMG of the hip, knee and ankle joints. Resting muscle tone, maximal isometric contraction and three typical isotonic movements of the joints were measured. First step of analysis was to characterize typical pathogenic changes in the muscles and to find a corresponding physical therapy to minimize these changes.
Results It showed that EMG is a good marker for muscle condition. It helps to individualize therapy and improve effectivity of physical and physiotherapeutic treatment of the locomotive system of children and young adults with hemophilia. It can help to recognize early subclinical changes and to control the outcome of therapeutic modalities.
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Leo C, Fink D. Epithelial-zu-mesenchymale Transition (EMT) - Neue molekulare Einsichten in die Tumorprogression. Geburtshilfe Frauenheilkd 2011. [DOI: 10.1055/s-0030-1250770] [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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Hnatowicz V, Vacík J, Fink D. Deconvolution of charged particle spectra from neutron depth profiling using Simplex method. Rev Sci Instrum 2010; 81:073906. [PMID: 20687741 DOI: 10.1063/1.3463692] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Neutron depth profiling (NDP), based on neutron induced nuclear reactions, is a well known, nondestructive technique for the determination of the concentration depth profiles of some isotopes in the surface layers of solids. The profile determination consists of deconvolution of a relevant part of the energy spectra of the charged reaction products. Several solutions have been suggested for this problem. In this work, an alternative computer code (LIBOR), which makes use of the Simplex minimization technique for the deconvolution of the NDP spectra, is described and its performance is documented on several examples.
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Affiliation(s)
- V Hnatowicz
- Nuclear Physics Institute, Academy of Sciences of the Czech Republic, 250 68 Rez, Czech Republic.
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