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Klucken J, Barth J, Maertens K, Eskofier B, Kugler P, Steidl R, Hornegger J, Winkler J. [Mobile biosensor-based gait analysis: a diagnostic and therapeutic tool in Parkinson's disease]. DER NERVENARZT 2012; 82:1604-11. [PMID: 21748456 DOI: 10.1007/s00115-011-3329-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Parkinson's disease (PD) is characterized by progressive motor and non-motor symptoms, leading to distinct diagnostic and therapeutic challenges in all stages of the disease. This study investigated a mobile biosensor-based gait analysis system for patients in early and intermediate stages of PD compared to controls. Subjects wearing a motion sensor-equipped shoe performed a standardized gait exercise. Accelerometer- and gyroscope-based signals were analysed using a complex set of pattern recognition algorithms. The analysis was able (1) to distinguish between PD patients and controls, (2) to identify patients at an early stage of the disease and (3) to distinguish between early and intermediate stage patients. Thus, using this mobile biosensor-based analysis system we were able to obtain objective classifications of gait characteristics in PD. Future studies will show that mobile biosensor-based movement detection technology will support identification of early PD stages and allow objective characterization of motor fluctuations in advanced stages of the disease. This will provide an important and supportive tool for patients, caregivers and therapists.
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Walter U, Klucken J, Benecke R, Winkler J. Hirnsonografie, Riechtestung und motorische Testverfahren in der Frühdiagnose des idiopathischen Parkinson-Syndroms. AKTUELLE NEUROLOGIE 2012. [DOI: 10.1055/s-0031-1301298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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78
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Winkler J, Zipp L, Knoblich J, Zimmermann F. Simultaneous neoadjuvant radiochemotherapy with capecitabine and oxaliplatin for locally advanced rectal cancer. Treatment outcome outside clinical trials. Strahlenther Onkol 2012; 188:377-82. [PMID: 22402868 DOI: 10.1007/s00066-012-0073-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Accepted: 01/11/2012] [Indexed: 12/13/2022]
Abstract
BACKGROUND Phase II trials of neoadjuvant treatment in UICC-TNM stage II and III rectal cancer with capecitabine and oxaliplatin demonstrated favourable rates on tumour regression with acceptable toxicity. PATIENTS AND METHODS Retrospective evaluation of 34 patients treated from 2005-2008 outside clinical trials (CTR) with neoadjuvant irradiation (45-50.4 Gy) and simultaneous capecitabine 825 mg/m(2) b.i.d. on days 1-14 and 22-35 and oxaliplatin 50 mg/m(2) on days 1, 8, 22 and 29 (CAPOX). Twenty-six (77%) patients received one or two courses of capecitabine 1,000 mg/m(2) b.i.d. on days 1-14 and oxaliplatin 130 mg/m(2) on day 1 (XELOX) prior to simultaneous chemoradiotherapy. RESULTS UICC-TNM stage regression was observed in 60% (n = 20). Dworak's regression grades 3 and 4 were achieved in 18.2% (n = 6) and 15.1% (n = 5) of the patients. Sphincter-preserving surgery was performed in 53% (n = 8) of patients with a tumour of the lower rectum. Within the mean observation of 24 months, none of the patients relapsed locally, 1 patient had progressive disease and 5 patients (15%) relapsed distantly. Toxicity of grade 3 and 4 was mainly diarrhoea 18% (n = 6) and perianal pain 9% (n = 3). Nevertheless, severe cardiac events (n = 2), severe electrolyte disturbances (n = 2), and syncopes (n = 2) were observed as well. CONCLUSION Treatment efficacy and common toxicity are similar to the reports of phase I/II trials. However, several severe adverse events were observed in our cohort study. The predisposing factors for these events have yet to be studied and may have implications for the selection of patients outside CTR.
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Jagtap S, Meganathan K, Gaspar J, Wagh V, Winkler J, Hescheler J, Sachinidis A. Cytosine arabinoside induces ectoderm and inhibits mesoderm expression in human embryonic stem cells during multilineage differentiation. Br J Pharmacol 2011; 162:1743-56. [PMID: 21198554 DOI: 10.1111/j.1476-5381.2010.01197.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND AND PURPOSE Teratogenic substances induce adverse effects during the development of the embryo. Multilineage differentiation of human embryonic stem cells (hESCs) mimics the development of the embryo in vitro. Here, we propose a transcriptomic approach in hESCs for monitoring specific toxic effects of compounds as an alternative to traditional time-consuming and cost-intensive in vivo tests requiring large numbers of animals. This study was undertaken to explore the adverse effects of cytosine arabinoside (Ara-C) on randomly differentiated hESCs. EXPERIMENTAL APPROACH Human embryonic stem cells were used to investigate the effects of a developmental toxicant Ara-C. Sublethal concentrations of Ara-C were given for two time points, day 7 and day 14 during the differentiation. Gene expression was assessed with microarrays to determine the dysregulated transcripts in presence of Ara-C. KEY RESULTS Randomly differentiated hESCs were able to generate the multilineage markers. The low concentration of Ara-C (1 nM) induced the ectoderm and inhibited the mesoderm at day 14. The induction of ectodermal markers such as MAP2, TUBB III, PAX6, TH and NESTIN was observed with an inhibition of mesodermal markers such as HAND2, PITX2, GATA5, MYL4, TNNT2, COL1A1 and COL1A2. In addition, no induction of apoptosis was observed. Gene ontology revealed unique dysregulated biological process related to neuronal differentiation and mesoderm development. Pathway analysis showed the axon guidance pathway to be dysregulated. CONCLUSIONS AND IMPLICATIONS Our results suggest that hESCs in combination with toxicogenomics offer a sensitive in vitro developmental toxicity model as an alternative to traditional animal experiments.
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Wensel R, Gläser S, Seyfarth HJ, Bruch L, Winkler J, Halank M, Dandel M, Opitz C, Meyer J, Ewert R. Sauerstoffaufnahme (peakVO2) und pulmonalvaskulärer Widerstand (PVR) als Prädiktoren für das Überleben von Patienten mit IPAH. Pneumologie 2011. [DOI: 10.1055/s-0031-1272108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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81
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Cirak S, Ölmez A, Karasoy H, Bakouche B, Heise M, Muntoni F, Winkler J, Topaloglu H, Uyanik G. P34 Clinical phenotype and novel mutations in Alsin related motorneuron disease. Neuromuscul Disord 2011. [DOI: 10.1016/s0960-8966(11)70053-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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82
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Winner B, Melrose HL, Zhao C, Hinkle KM, Yue M, Kent C, Braithwaite AT, Ogholikhan S, Aigner R, Winkler J, Farrer MJ, Gage FH. Adult neurogenesis and neurite outgrowth are impaired in LRRK2 G2019S mice. Neurobiol Dis 2010; 41:706-16. [PMID: 21168496 DOI: 10.1016/j.nbd.2010.12.008] [Citation(s) in RCA: 151] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2010] [Revised: 12/01/2010] [Accepted: 12/10/2010] [Indexed: 01/19/2023] Open
Abstract
The generation and maturation of adult neural stem/progenitor cells are impaired in many neurodegenerative diseases, among them is Parkinson's disease (PD). In mammals, including humans, adult neurogenesis is a lifelong feature of cellular brain plasticity in the hippocampal dentate gyrus (DG) and in the subventricular zone (SVZ)/olfactory bulb system. Hyposmia, depression, and anxiety are early non-motor symptoms in PD. There are parallels between brain regions associated with non-motor symptoms in PD and neurogenic regions. In autosomal dominant PD, mutations in the leucine-rich repeat kinase 2 (LRRK2) gene are frequent. LRRK2 homologs in non-vertebrate systems play an important role in chemotaxis, cell polarity, and neurite arborization. We investigated adult neurogenesis and the neurite development of new neurons in the DG and SVZ/olfactory bulb system in bacterial artificial chromosome (BAC) human Lrrk2 G2019S transgenic mice. We report that mutant human Lrrk2 is highly expressed in the hippocampus in the DG and the SVZ of adult Lrrk2 G2019S mice. Proliferation of newly generated cells is significantly decreased and survival of newly generated neurons in the DG and olfactory bulb is also severely impaired. In addition, after stereotactic injection of a GFP retrovirus, newly generated neurons in the DG of Lrrk2 G2019S mice exhibited reduced dendritic arborization and fewer spines. This loss in mature, developed spines might point towards a decrease in synaptic connectivity. Interestingly, physical activity partially reverses the decrease in neuroblasts observed in Lrrk2 G2010S mice. These data further support a role for Lrrk2 in neuronal morphogenesis and provide new insights into the role of Lrrk2 in adult neurogenesis.
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Meganathan K, Jagtap S, Wagh V, Gasper JA, Winkler J, Hescheler J, Sachinidis A. Differentiation of human embryonic stem cells into multiple lineages- a toxicogenomic platform for developmental toxicity. J Stem Cells Regen Med 2010; 6:53. [PMID: 24693074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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84
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Potta SP, Huamin L, Winkler J, Doss MX, Chen S, Wagh V, Pfannkuche K, Telugu NS, Devulapally P, Jürgen H, Sachinidis A. Isolation and functional characterization of alpha-smooth muscle actin expressing cardiomyocytes from embryonic stem cells. J Stem Cells Regen Med 2010; 6:42. [PMID: 24693063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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85
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Niemann R, Doss X, Winkler J, Chen S, Gajewski M, Hescheler J, Sachinidis A. Investigation of zebrafish homologues to specifically upregulated TUFs in cardiomyocytes derived from murine ES cells. J Stem Cells Regen Med 2010; 6:83. [PMID: 24693101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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86
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Jagtap S, Meganathan K, Wagh V, Gaspar JA, Winkler J, Hescheler J, Sachinidis A. Cytarabine stimulates neuronal markers in hESC derived embryoid bodies. J Stem Cells Regen Med 2010; 6:52. [PMID: 24693073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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87
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Wagh V, Liaquat K, Meganathan K, Hagtap S, Potta S, Winkler J, Hescheler J, Sachinidis A. Implications of chemopreventive agents in differentiation of mouse embryonic stem cell derived embryoid bodies. J Stem Cells Regen Med 2010; 6:54. [PMID: 24693075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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88
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Grünig E, Barner A, Bell M, Claussen M, Dandel M, Dumitrescu D, Gorenflo M, Holt S, Kovacs G, Ley S, Meyer JF, Pabst S, Riemekasten G, Saur J, Schwaiblmair M, Seck C, Sinn L, Sorichter S, Winkler J, Leuchte HH. [Non-invasive diagnosis of pulmonary hypertension: ESC/ERS Guidelines with commentary of the Cologne Consensus Conference 2010]. Dtsch Med Wochenschr 2010; 135 Suppl 3:S67-77. [PMID: 20862623 DOI: 10.1055/s-0030-1263314] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The 2009 European Guidelines on Diagnosis and Treatment of Pulmonary Hypertension have been adopted for Germany. The guidelines contain detailed recommendations for the diagnosis of pulmonary hypertension. However, the practical implementation of the European Guidelines in Germany requires the consideration of several country-specific issues and already existing novel data. This requires a detailed commentary to the guidelines, and in some aspects an update y appears necessary. In June 2010, a Consensus Conference organized by the PH working groups of the German Society of Cardiology (DGK), the German Society of Respiratory Medicine (DGP) and the German Society of Pediatric Cardiology (DGPK) was held in Cologne, Germany. This conference aimed to solve practical and controversial issues surrounding the implementation of the European Guidelines in Germany. To this end, a number of working groups was initiated, one of which was specifically dedicated to non-invasive diagnosis of PH. This commentary summarizes the results and recommendations of the working group on treatment of PAH.
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Winkler J, Timmis KN, Snyder RA. Tracking the Response of Burkholderia cepacia G4 5223-PR1 in Aquifer Microcosms. Appl Environ Microbiol 2010; 61:448-55. [PMID: 16534928 PMCID: PMC1388346 DOI: 10.1128/aem.61.2.448-455.1995] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The introduction of bacteria into the environment for bioremediation purposes (bioaugmentation) requires analysis and monitoring of microbial population dynamics to define persistence and activity from both efficacy and risk assessment perspectives. Burkholderia cepacia G4 5223-PR1 is a Tn5 insertion mutant which constitutively expresses a toluene ortho-monooxygenase that degrades trichloroethylene (TCE). This ability of G4 5223-PR1 to degrade TCE without aromatic induction may be useful for bioremediation of TCE-containing aquifers and groundwater. Thus, a simulated aquifer sediment system and groundwater microcosms were used to monitor the survival of G4 5223-PR1. The fate of G4 5223-PR1 in sediment was monitored by indirect immunofluorescence microscopy, a colony blot assay, and growth on selective medium. G4 5223-PR1 was detected immunologically by using a highly specific monoclonal antibody which reacted against the O-specific polysaccharide chain of the lipopolysaccharides of this organism. G4 5223-PR1 survived well in sterilized groundwater, although in nonsterile groundwater microcosms rapid decreases in the G4 5223-PR1 cell population were observed. Ten days after inoculation no G4 5223-PR1 cells could be detected by selective plating or immunofluorescence. G4 5223-PR1 survival was greater in a nonsterile aquifer sediment microcosm, although after 22 days of elution the number of G4 5223-PR1 cells was low. Our results demonstrate the utility of monoclonal antibody tracking methods and the importance of biotic interactions in determining the persistence of introduced microorganisms.
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Winkler J, Rech D, Kallert S, Rech J, Meidenbauer N, Roesler W, Mackensen A. Sorafenib induces sustained molecular remission in FLT3-ITD positive AML with relapse after second allogeneic stem cell transplantation without exacerbation of acute GVHD: a case report. Leuk Res 2010; 34:e270-2. [PMID: 20627386 DOI: 10.1016/j.leukres.2010.04.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2010] [Revised: 03/31/2010] [Accepted: 04/13/2010] [Indexed: 12/01/2022]
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91
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Runge W, Winkler J. The molecular structure of allenes and ketenes VI [1] circular dichroism spectroscopy as a tool for the detection and assignment of electronic transitions in phenylallenecarboxylic acids. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19750790710] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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92
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Runge W, Kosbahn W, Winkler J. Molekülstruktur von Allenen und Ketenen III [1] Circulardichroismusspektroskopische, absorptionsspektroskopische und CNDO/S-Untersuchungen an Alkylallencarbonsäuren. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bbpc.19750790411] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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93
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Liu H, Guz Y, Kedees MH, Winkler J, Teitelman G. Precursor cells in mouse islets generate new beta-cells in vivo during aging and after islet injury. Endocrinology 2010; 151:520-8. [PMID: 20056825 PMCID: PMC2817623 DOI: 10.1210/en.2009-0992] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Whereas it is believed that the pancreatic duct contains endocrine precursors, the presence of insulin progenitor cells residing in islets remain controversial. We tested whether pancreatic islets of adult mice contain precursor beta-cells that initiate insulin synthesis during aging and after islet injury. We used bigenic mice in which the activation of an inducible form of Cre recombinase by a one-time pulse of tamoxifen results in the permanent expression of a floxed human placental alkaline phosphatase (PLAP) gene in 30% of pancreatic beta-cells. If islets contain PLAP(-) precursor cells that differentiate into beta-cells (PLAP(-)IN(+)), a decrease in the percentage of PLAP(+)IN(+) cells per total number of IN(+) cells would occur. Conversely, if islets contain PLAP(+)IN(-) precursors that initiate synthesis of insulin, the percentage of PLAP(+)IN(+) cells would increase. Confocal microscope analysis revealed that the percentage of PLAP(+)IN(+) cells in islets increased from 30 to 45% at 6 months and to 60% at 12 months. The augmentation in the level of PLAP in islets with time was confirmed by real-time PCR. Our studies also demonstrate that the percentage of PLAP(+)IN(+) cells in islets increased after islet injury and identified putative precursors in islets. We postulate that PLAP(+)IN(-) precursors differentiate into insulin-positive cells that participate in a slow renewal of the beta-cell mass during aging and replenish beta-cells eliminated by injury.
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Lee P, Anderson D, Bouhana K, Garrus J, Napier C, Avrustkaya A, White A, Pheneger T, Winkler J. In Vivo Activity of ARRY-380, a Potent, Small Molecule Inhibitor of ErbB2 in Combination with Trastuzumab, Docetaxel or Bevacizumab. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-09-5104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
ARRY-380 is an orally active, potent small molecule tyrosine kinase inhibitor targeting ErbB2. The compound is a reversible, ATP-competitive inhibitor with nanomolar potency against ErbB2 in both in vitro and in cell-based assays. This compound has very good in vivo and in vitro PK/ADME properties and has shown excellent activity in numerous mouse tumor models including breast (BT-474, MDA-MB-453), ovarian (SKOV-3) and gastric (N87) carcinoma models. Here we demonstrate excellent single agent activity and combinability with trastuzumab, docetaxel or bevacizumab in breast and ovarian carcinoma models. For the BT-474 studies, female SCID beige mice were implanted with tumor fragments. For the SKOV-3 tumor studies, female nude mice were inoculated with cells subcutaneously in the flank. Animals received: doses of ARRY-380 ranging up to 200 mg/kg/d, PO; and/or trastuzumab at 20 mg/kg, IP, Q3D or QW; and/or docetaxel at 10 mg/kg, IV, Q3D; and/or bevacizumab at 10 mg/kg, IP, Q4D x3. Tumor size was measured at regular intervals and subsets of animals were monitored for up to 90 days to determine tumor-free survival. In the BT-474 model, ARRY-380 demonstrated significant dose-related tumor growth inhibition (TGI; 50% at 50 mg/kg/d and 96% at 100 mg/kg/d) with numerous partial regressions (>50% reduction from baseline size) at the higher dose level in 9/12 animals. One complete response was observed at the higher dose. Trastuzumab alone provided a 45% TGI with no regressions. ARRY-380 (50 mg/kg/d) in combination with trastuzumab showed a 98% TGI with complete regressions in 9/12 animals and two partial regressions. At dose of 100 mg/kg/d of ARRY-380 in combination with trastuzumab, there was 100% TGI and all animals had complete responses. Docetaxel as a single agent produced a 55% TGI with no regressions. In combination with ARRY-380 (50 mg/kg/d), there was an 81% TGI and five partial regressions. In the SKOV-3 model, ARRY-380 demonstrated significant dose-related tumor growth inhibition (TGI; 39% at 50 mg/kg, BID and 96% at 100 mg/kg, BID) with partial regressions (>50% reduction from baseline size) at the higher dose level in all animals. Bevacizumab alone provided a 55% TGI with no regressions. ARRY-380 (50 mg/kg, BID) in combination with bevacizumab showed 80% TGI with partial responses in 7/8 animals and one stable disease. From this work we have demonstrated superb single agent activity for ARRY-380 in the BT-474 human breast carcinoma xenograft model and the SKOV-3 human ovarian carcinoma model. In addition, ARRY-380 has shown additive activity and tolerability with trastuzumab, docetaxel and bevacizumab. ARRY-380 has entered Phase I clinical trials in patients with advanced cancers.
Citation Information: Cancer Res 2009;69(24 Suppl):Abstract nr 5104.
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Winkler J, Sotiriadou I, Chen S, Hescheler J, Sachinidis A. The Potential of Embryonic Stem Cells Combined with -omics Technologies as Model Systems for Toxicology. Curr Med Chem 2009; 16:4814-27. [DOI: 10.2174/092986709789909657] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2009] [Accepted: 11/28/2009] [Indexed: 11/22/2022]
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Schüle R, Schlipf N, Synofzik M, Klebe S, Klimpe S, Hehr U, Winner B, Lindig T, Dotzer A, Riess O, Winkler J, Schöls L, Bauer P. Frequency and phenotype of SPG11 and SPG15 in complicated hereditary spastic paraplegia. J Neurol Neurosurg Psychiatry 2009; 80:1402-4. [PMID: 19917823 DOI: 10.1136/jnnp.2008.167528] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Hereditary spastic paraplegias (HSP) are clinically and genetically highly heterogeneous. Recently, two novel genes, SPG11 (spatacsin) and SPG15 (spastizin), associated with autosomal recessive HSP, were identified. Clinically, both are characterised by complicated HSP and a rather similar phenotype consisting of early onset spastic paraplegia, cognitive deficits, thin corpus callosum (TCC), peripheral neuropathy and mild cerebellar ataxia. OBJECTIVE To compare the frequency of SPG11 and SPG15 in patients with early onset complicated HSP and to further characterise the phenotype of SPG11 and SPG15. RESULTS A sample of 36 index patients with early onset complicated HSP and a family history compatible with autosomal recessive inheritance was collected and screened for mutations in SPG11 and SPG15. Overall frequency of SPG11 was 14% (5/36) but was considerably higher in patients with TCC (42%). One patient with mental retardation and thinning of the corpus callosum was compound heterozygous for two novel SPG15 mutations. Additionally, several new polymorphisms and sequence variants of unknown significance have been identified in the SPG15 gene. CONCLUSIONS TCC seems to be the best phenotypic predictor for SPG11 as well as SPG15. No clinical features could discriminate between SPG11 and SPG15. Therefore, priority of genetic testing should be driven by mutation frequency that appears to be substantially higher in SPG11 than in SPG15.
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Hoheisel G, Winkler J, Gessner C, Vogtmann M, Wirtz H. [Professor Dr. med. habil. Joachim Schauer on the Occasion of his 70th Birthday]. Pneumologie 2009; 63:594-5. [PMID: 19821217 DOI: 10.1055/s-0029-1215160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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98
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Hoheisel G, Vogtmann M, Gessner C, Winkler J, Rodloff AC, Wirtz H. [Tuberculosis and travelling]. Pneumologie 2009; 63:519-25. [PMID: 19750412 DOI: 10.1055/s-0029-1214995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Tuberculosis (TB) in Germany in the year 2007 with 5020 reported cases (incidence: 6.1 newly diagnosed cases per 100 000 inhabitants) was continuously in decline. 43.1 % of these persons were from countries with a higher TB incidence as compared to Germany. However, not only migration but also personal journeys from low- to high-incidence countries carries an increased risk of infection with M. tuberculosis (MTB). An early active TB follows only rarely, more common, however, is a latent TB infection (LTBI). Not only the active form of TB but also LTBI, with a potential for reactivation years or decades later, can be of enormous relevance for the individual and the social environment. The early detection of an MTB infection and its possible sequelae are decisive for a continued successful battle against tuberculous diseases, especially in view of increasing travel activities.
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Klucken J, Winkler J. Autophagy und α-Synucleinaggregation beim M. Parkinson. AKTUELLE NEUROLOGIE 2009. [DOI: 10.1055/s-0029-1238881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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100
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Winkler J, Hagert-Winkler A, Wirtz H, Hoheisel G. [Modern impulse oscillometry in the spectrum of pulmonary function testing methods]. Pneumologie 2009; 63:461-9. [PMID: 19670105 DOI: 10.1055/s-0029-1214938] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Impulse oscillometry (IOS) is a computer supported method for the measurement of complex mechanical airway characteristics. Bronchial obstructions can reliably be diagnosed by IOS when more complex parameters such as frequency dependence of resistance (FDR) and lung reactance (X5) are evaluated in cases with more severe obstruction. Parameters of conventional methods like pneumotachography, spirometry, and bodyplethysmography show relatively low correlations due to the different measurement principles, not only in comparison to IOS, but also in between one another. The IOS is a convenient method for patients with a low dependency on cooperation for the evaluation of obstructive airway diseases complementary to the established standard methods. Furthermore, IOS may provide a sensitive screening tool for the early detection of bronchial obstructions not only in paediatrics but also in occupational medicine.
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