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Rodón J, Curigliano G, Delord JP, Harb W, Azaro A, Donnet V, Han Y, Blumenstein L, Wilke C, Beck J. A phase Ib dose-finding study of alpelisib (ALP; BYL719) and paclitaxel (PTX) in advanced solid tumors (aST). Ann Oncol 2016. [DOI: 10.1093/annonc/mdw368.18] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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André F, Kaufman B, Juric D, Ciruelos E, Iwata H, Mayer I, Conte P, Rugo H, Loibl S, Rubovszky G, Tesch H, Inoue K, Lu YS, Ryvo L, Longin AS, Mills D, Wilke C, Germa C, Campone M. A phase III study of alpelisib and fulvestrant in men and postmenopausal women with hormone receptor-positive (HR+), human epidermal growth factor receptor 2-negative (HER2–) advanced breast cancer (BC) progressing on or after aromatase inhibitor (AI) therapy (SOLAR-1). Ann Oncol 2016. [DOI: 10.1093/annonc/mdw365.90] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Watson SK, Townsend SW, Schel AM, Wilke C, Wallace EK, Cheng L, West V, Slocombe KE. Reply to Fischer et al. Curr Biol 2016; 25:R1030-R1031. [PMID: 26528741 DOI: 10.1016/j.cub.2015.09.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
We welcome the correspondence from Fischer and colleagues regarding our recent paper on vocal learning in chimpanzee food grunts [1]. Fischer et al. make two challenges to our paper's conclusions, which we address here.
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Lebok P, Kopperschmidt V, Kluth M, Hube-Magg C, Özden C, B T, Hussein K, Mittenzwei A, Lebeau A, Witzel I, Wölber L, Mahner S, Jänicke F, Geist S, Paluchowski P, Wilke C, Heilenkötter U, Simon R, Sauter G, Terracciano L, Krech R, von d Assen A, Müller V, Burandt E. Partial PTEN deletion is linked to poor prognosis in breast cancer. BMC Cancer 2015; 15:963. [PMID: 26672755 PMCID: PMC4682275 DOI: 10.1186/s12885-015-1770-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 10/10/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Deletions of chromosome 10q23, including the PTEN (phosphatase and tensin homolog) locus, are known to occur in breast cancer, but systematic analyses of its clinical relevance are lacking. METHODS We thus analyzed a tissue microarray (TMA) with 2,197 breast cancers by fluorescence in-situ hybridization (FISH) using a PTEN-specific probe. RESULTS PTEN deletions were detected in 19% of no special type, 9% of lobular, 4% of tubular cancers and 46% in carcinomas with medullary features. 98.7% of deletions were heterozygous and only 1.3% were homozygous. PTEN deletion was significantly linked to advanced tumor stage (p=0.0054), high-grade (p<0.0001), high tumor cell proliferation (Ki67 Labeling Index; p<0.0001), and shortened overall survival (p=0.0090). PTEN deletions were inversely associated with features of luminal type breast cancers (ER/PR positivity; p<0.0001 each, and CCND1 amplification; p=0.0020). PTEN deletions were also strongly linked to amplification of genes involved in the PTEN/AKT pathway such as MYC (p=0.0430) and HER2 (p=0.0065). Remarkably the combined analysis of MYC, HER2, CCND1 and PTEN aberrations suggested that aberrations of multiple PTEN/AKT pathway genes have a strong additive effect on breast cancer prognosis. While cancers with one of these aberrations behaved only marginally different from cancers with none, disease outcome was markedly worse in cancers with two or more aberrations as compared to those with only one aberration (p=0.0002). In addition, the particularly poor prognosis of patients with HER2 amplification and PTEN deletions challenges the concept of PTEN deletions interfering with trastuzumab therapy. CONCLUSION PTEN deletion occurs in a relevant fraction of breast cancers, and is linked to aggressive tumor behavior. Reduced PTEN function cooperates with MYC and HER2 activation in conferring aggressive phenotype to cancer cells.
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Lebok P, Mittenzwei A, Kluth M, Özden C, Taskin B, Hussein K, Möller K, Hartmann A, Lebeau A, Witzel I, Mahner S, Wölber L, Jänicke F, Geist S, Paluchowski P, Wilke C, Heilenkötter U, Simon R, Sauter G, Terracciano L, Krech R, von der Assen A, Müller V, Burandt E. 8p deletion is strongly linked to poor prognosis in breast cancer. Cancer Biol Ther 2015; 16:1080-7. [PMID: 25961141 PMCID: PMC4623106 DOI: 10.1080/15384047.2015.1046025] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 04/16/2015] [Accepted: 04/23/2015] [Indexed: 10/23/2022] Open
Abstract
Deletions of chromosome 8p occur frequently in breast cancers, but analyses of its clinical relevance have been limited to small patient cohorts and provided controversial results. A tissue microarray with 2,197 breast cancers was thus analyzed by fluorescence in-situ hybridization using an 8p21 probe in combination with a centromere 8 reference probe. 8p deletions were found in 50% of carcinomas with no special type, 67% of papillary, 28% of tubular, 37% of lobular cancers and 56% of cancers with medullary features. Deletions were always heterozygous. 8p deletion was significantly linked to advanced tumor stage (P < 0.0001), high-grade (P < 0.0001), high tumor cell proliferation (Ki67 Labeling Index; P < 0.0001), and shortened overall survival (P < 0.0001). For example, 8p deletion was seen in 32% of 290 grade 1, 43% of 438 grade 2, and 65% of 427 grade 3 cancers. In addition, 8p deletions were strongly linked to amplification of MYC (P < 0.0001), HER2 (P < 0.0001), and CCND1 (p = 0.001), but inversely associated with ER receptor expression (p = 0.0001). Remarkably, 46.5% of 8p-deleted cancers harbored amplification of at least one of the analyzed genes as compared to 27.5% amplifications in 8p-non-deleted cancers (P < 0.0001). In conclusion, 8p deletion characterizes a subset of particularly aggressive breast cancers. As 8p deletions are easy to analyze, this feature appears to be highly suited for future DNA based prognostic breast cancer panels. The strong link of 8p deletion with various gene amplifications raises the possibility of a role for regulating genomic stability.
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Key Words
- 8p
- ER, estrogen receptor
- FISH
- FISH, fluorescence in situ hybridization
- HER2, human epidermal growth factor receptor 2
- Ki67LI, Ki67 Labeling index
- LOH, loss of heterozygosity
- NGS, next generation sequencing
- NST, no special type
- PR, progesterone receptor
- TMA, tissue microarray
- breast cancer
- deletion
- pN, nodal stage
- pT, pathological tumor stage
- prognosis
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Watson S, Townsend S, Schel A, Wilke C, Wallace E, Cheng L, West V, Slocombe K. Vocal Learning in the Functionally Referential Food Grunts of Chimpanzees. Curr Biol 2015; 25:495-9. [DOI: 10.1016/j.cub.2014.12.032] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 11/20/2014] [Accepted: 12/10/2014] [Indexed: 11/24/2022]
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Babiszewska M, Schel AM, Wilke C, Slocombe KE. Social, contextual, and individual factors affecting the occurrence and acoustic structure of drumming bouts in wild chimpanzees (Pan troglodytes). AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2014; 156:125-34. [PMID: 25327570 DOI: 10.1002/ajpa.22634] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 09/28/2014] [Indexed: 11/06/2022]
Abstract
The production of structured and repetitive sounds by striking objects is a behavior found not only in humans, but also in a variety of animal species, including chimpanzees (Pan troglodytes). In this study we examined individual and social factors that may influence the frequency with which individuals engage in drumming behavior when producing long distance pant hoot vocalizations, and analyzed the temporal structure of those drumming bouts. Male chimpanzees from Budongo Forest, Uganda, drummed significantly more frequently during travel than feeding or resting and older individuals were significantly more likely to produce drumming bouts than younger ones. In contrast, we found no evidence that the presence of estrus females, high ranking males and preferred social partners in the caller's vicinty had an effect on the frequency with which an individual accompanied their pant hoot vocalization with drumming. Through acoustic analyses, we demonstrated that drumming sequences produced with pant hoots may have contained information on individual identity and that qualitatively, there was individual variation in the complexity of the temporal patterns produced. We conclude that drumming patterns may act as individually distinctive long-distance signals that, together with pant hoot vocalizations, function to coordinate the movement and spacing of dispersed individuals within a community, rather than as signals to group members in the immediate audience.
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Eckmann-Scholz C, Wilke C, Acil Y, Alkatout I, Salmassi A. Macrophage colony-stimulating factor (M-CSF) im Erst-Trimester-Screening bei auffälligem Schwangerschaftsverlauf. Geburtshilfe Frauenheilkd 2014. [DOI: 10.1055/s-0034-1388053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Wilke C, Heß J, Pitea A, Schmidl D, Klymenko S, Zitzelsberger H, Unger K. 932: Comparative global characterisation of microRNA-expression in radiation-associated and sporadic breast carcinomas. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)50831-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Biallas B, Froböse I, Zöller M, Wilke C. Analyse der Arbeitsfähigkeit und gesundheitsbezogenen Lebensqualität im Rahmen bewegungsbezogener Maßnahmen der betrieblichen Gesundheitsförderung in einem mittelständischen Unternehmen. DAS GESUNDHEITSWESEN 2014; 77:357-61. [DOI: 10.1055/s-0034-1372625] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Awada A, Bondarenko IN, Bonneterre J, Nowara E, Ferrero JM, Bakshi AV, Wilke C, Piccart M. A randomized controlled phase II trial of a novel composition of paclitaxel embedded into neutral and cationic lipids targeting tumor endothelial cells in advanced triple-negative breast cancer (TNBC). Ann Oncol 2014; 25:824-831. [PMID: 24667715 DOI: 10.1093/annonc/mdu025] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023] Open
Abstract
BACKGROUND EndoTAG-1, composed of paclitaxel embedded in liposomal membranes targeting tumor endothelial cells, was evaluated for safety and efficacy in advanced triple-negative breast cancer (TNBC). PATIENTS AND METHODS One hundred and forty patients were treated with weekly EndoTAG-1 (22 mg/m(2)) plus paclitaxel (70 mg/m(2)), twice weekly EndoTAG-1 (2× 44 mg/m(2)), or weekly paclitaxel (90 mg/m(2)) for greater than or equal to four cycles (3-week treatment + 1-week rest) or until progression/toxicity. Primary end point was progression-free survival (PFS) rate evaluated centrally after four cycles of therapy (week 16). The study was not powered for intergroup comparisons. RESULTS The PFS rate at week 16 was 59.1% [one-sided 95% CI: 45.6, ∞] on combination treatment, 34.2% [21.6, ∞] on EndoTAG-1, and 48.0% [30.5, ∞] on paclitaxel. Median PFS reached 4.2, 3.4, and 3.7 months, respectively. After complete treatment (week 41 analysis), median overall survival (OS) was 13.0, 11.9, and 13.1 months for the modified Intention-to-Treat (ITT) population and 15.1, 12.5, and 8.9 months for the per-protocol population, respectively. The clinical benefit rate was 53%, 31%, and 36% for the treatment groups. Safety analysis revealed known toxicities of the drugs with slight increases of grade 3/4 neutropenia on combination therapy. CONCLUSION Treatment of advanced TNBC with a combination of EndoTAG-1 and standard paclitaxel [Taxol® (Bristol-Myers Squibb GmbH), or equivalent generic formulation] was well tolerated and showed antitumor efficacy. The positive trend needs to be confirmed in a randomized phase III trial. STUDY REGISTRATION European Clinical Trials Database: EudraCT number 2006-002221-23. ClinicalTrials.gov identifier: NCT00448305.
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Beck TF, Wilke C, Wirxel B, Endres D, Lindner A, Giese MA. Me - Not Me - Or In Between? Comparison of Causal Inference Models for Agency attribution in goal-directed actions. J Vis 2013. [DOI: 10.1167/13.9.745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Brandt C, Kozakov R, Testrich H, Golubovskii YB, Wilke C. Spatial relaxation of selective laser perturbations in a glow discharge plasma. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2013; 87:013103. [PMID: 23410442 DOI: 10.1103/physreve.87.013103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Indexed: 06/01/2023]
Abstract
An effect of a nonlocal plasma response caused by local laser radiation exciting atoms in resonant and metastable states is observed in a dc neon glow discharge. Starting at the perturbed position, spatially damped oscillations in the direction of the anode effecting all plasma quantities are created. Depending on the excitation of resonant or metastable atoms, the oscillations are phase-shifted by π. If the laser excites in particular a cycling transition, no nonlocal plasma response is observed. The relaxation of the plasma is investigated by means of visible light measurements using a line camera in the vicinity of the axial perturbation position. The effect is modeled in terms of nonlocal electron kinetics by solving the spatially inhomogeneous electron Boltzmann equation.
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Trebst C, Berthele A, Jarius S, Kümpfel T, Schippling S, Wildemann B, Wilke C. [Diagnosis and treatment of neuromyelitis optica. Consensus recommendations of the Neuromyelitis Optica Study Group]. DER NERVENARZT 2012; 82:768-77. [PMID: 21174070 DOI: 10.1007/s00115-010-3192-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Waldmann A, Adrich S, Eisemann N, Fauteck H, Grande-Nagel I, Schaefer FKW, Vorkefeld M, Warnecke C, Weidner K, Wilke C, Katalinic A. [Structure and process quality of quality-assured mamma diagnostics in Schleswig-Holstein]. ROFO-FORTSCHR RONTG 2011; 184:113-21. [PMID: 22161233 DOI: 10.1055/s-0031-1281983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
PURPOSE To demonstrate the structure and process quality of quality-assured mamma diagnostics (QuaMaDi) by means of quality indicators as defined in the European Guidelines for Quality Assurance in Breast Cancer Screening and Diagnosis and in the National Guideline on Early Detection of Cancer in Germany. Furthermore, spatial differences and changes in the chronological sequence were analyzed. MATERIALS AND METHODS We used administrative data as documented in the time period 2006 - 2009 in QuaMaDi in Schleswig-Holstein (SH), Germany, and analyzed quality indicators as defined in the abovementioned guidelines (absolute and relative frequencies, 95 % confidence intervals). RESULTS Each year approximately 6 % of all women age 20 or older living in SH are examined using QuaMaDi. Only minor differences regarding age and clinical data were seen between the patients in the four regions of SH. Reference values for the quality indicators are largely reached (i. e., proportion of women with breast density ACR 3 or 4 plus additional ultrasound = 96.2 %; proportion with repeated mammography = 0.2 %). Spatial differences are only minor. In the chronological sequence, quality indicators improve, if they did not reach the reference values in the beginning, or indicate a high and constant quality. CONCLUSION With regard to those quality indicators that were computable, reference values as defined in the guidelines were reached in 9 of 12 cases. In one case the difference between the observed value and the reference values is system-immanent and in another case the difference is less than four percentage points (reference value 90 %).
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Beck TF, Wilke C, Wirxel B, Endres D, Lindner A, Giese MA. Me or Not Me: Causal Inference of Agency in goal-directed actions. J Vis 2011. [DOI: 10.1167/11.11.955] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Astolfi L, De Vico Fallani F, Toppi J, Cincotti F, Mattia D, Salinari S, Vecchiato G, Wilke C, Yuan H, He B, Babiloni F. S2.3 Neural basis of cooperation and defection during social interaction: a neuroelectrical hyperscanning study. Clin Neurophysiol 2011. [DOI: 10.1016/s1388-2457(11)60010-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Astolfi L, Cincotti F, Mattia D, De Vico Fallani F, Salinari S, Vecchiato G, Toppi J, Wilke C, Doud A, Yuan H, He B, Babiloni F. Imaging the social brain: multi-subjects EEG recordings during the "Chicken's game". ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2011; 2010:1734-7. [PMID: 21096409 DOI: 10.1109/iembs.2010.5626708] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In this study we measured simultaneously by EEG hyperscannings the neuroelectric activity in 6 couples of subjects during the performance of the "Chicken's game", derived from game theory. The simultaneous recording of the EEG in couples of interacting subjects allows to observe and model directly the neural signature of human interactions in order to understand the cerebral processes generating and generated by social cooperation or competition. Results suggested that the one of the most consistently activated structure in this particular social interaction paradigm is the left orbitofrontal cortex. Connectivity results also showed a significant involvement of the orbitofrontal regions of both hemispheres across the observed population. Taken together, results confirms that the study of the brain activities in humans during social interactions can take benefit from the simultaneous acquisition of brain activity during such interaction.
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Astolfi L, Cincotti F, Mattia D, De Vico Fallani F, Salinari S, Vecchiato G, Toppi J, Wilke C, Doud A, Yuan H, He B, Babiloni F. Simultaneous estimation of cortical activity during social interactions by using EEG hyperscannings. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2011; 2010:2814-7. [PMID: 21096219 DOI: 10.1109/iembs.2010.5626555] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
In this paper we show how the possibility of recording simultaneously the cerebral neuroelectric activity in different subjects (EEG hyperscanning) during the execution of different tasks could return useful information about the "internal" cerebral state of the subjects. We present the results obtained by EEG hyperscannings during ecological task (such as the execution of a card game) as well as that obtained in a series of couples of subjects during the performance of the Prisoner's Dilemma Game. The simultaneous recordings of couples of interacting subjects allows to observe and to model directly the neural signature of human interactions in order to understand the cerebral processes generating and generated by social cooperation or competition. Results obtained in a study of different groups recorded during the card game revealed a larger activity in prefrontal and anterior cingulated cortex in different frequency bands for the player that leads the game when compared to other players. Results collected in a population of 10 subjects during the performance of the Prisoner's Dilemma suggested that the most consistently activated structure is the orbitofrontal region (roughly described by the Brodmann area 10) during the condition of competition in both the tasks. It could be speculated whether the pattern of cortical connectivity between different cortical areas in different subjects could be employed as a tool for assessing the outcome of the task in advance.
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Astolfi L, De Vico Fallani F, Cincotti F, Mattia D, Vecchiato G, Toppi J, Salinari S, Wilke C, Yuan H, He B, Babiloni F. P10-13 Study of the cortical activity from simultaneous multi-subject EEG recordings. Clin Neurophysiol 2010. [DOI: 10.1016/s1388-2457(10)60666-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Astolfi L, Cincotti F, Mattia D, De Vico Fallani F, Salinari S, Marciani MG, Wilke C, Doud A, Yuan H, He B, Babiloni F. Estimation of the cortical activity from simultaneous multi-subject recordings during the prisoner's dilemma. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2010; 2009:1937-9. [PMID: 19964016 DOI: 10.1109/iembs.2009.5333456] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
One of the most challenging questions open in Neuroscience today is the characterization of the brain responses during social interaction. A major limitation of the approaches used in most of the studies performed so far is that only one of the participating brains is measured each time. The "interaction" between cooperating, competing or communicating brains is thus not measured directly, but inferred by independent observations aggregated by cognitive models and assumptions that link behavior and neural activation. In this paper, we present the results of the simultaneous neuroelectric recording of 5 couples of subjects engaged in cooperative games (EEG hyperscanning). The simultaneous recordings of couples of interacting subjects allows to observe and model directly the neural signature of human interactions in order to understand the cerebral processes generating and generated by social cooperation or competition. We used a paradigm called Prisoner's dilemma derived from the game theory. Results collected in a population of 10 subjects suggested that the most consistently activated structure in social interaction paradigms is the orbitofrontal region (roughly described by the Brodmann area 10) during the condition of competition.
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Hutchings L, Augustyn C, Cockcroft A, Van der Lingen C, Coetzee J, Leslie RW, Tarr RJ, Oosthuizen H, Lipinski MR, Roberts MR, Wilke C, Crawford R, Shannon LJ, Mayekiso M. Marine fisheries monitoring programmes in South Africa. S AFR J SCI 2010. [DOI: 10.4102/sajs.v105i5/6.85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Wilke C, van Drongelen W, Kohrman M, He B. Identification of epileptogenic foci from causal analysis of ECoG interictal spike activity. Clin Neurophysiol 2009; 120:1449-56. [PMID: 19616474 DOI: 10.1016/j.clinph.2009.04.024] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2008] [Revised: 03/31/2009] [Accepted: 04/02/2009] [Indexed: 11/26/2022]
Abstract
OBJECTIVE In patients with intractable epilepsy, the use of interictal spikes as surrogate markers of the epileptogenic cortex has generated significant interest. Previous studies have suggested that the cortical generators of the interictal spikes are correlated with the epileptogenic cortex as identified from the ictal recordings. We hypothesize that causal analysis of the functional brain networks during interictal spikes are correlated with the clinically-defined epileptogenic zone. METHODS We employed a time-varying causality measure, the adaptive directed transfer function (ADTF), to identify the cortical sources of the interictal spike activity in eight patients with medically intractable neocortical-onset epilepsy. The results were then compared to the foci identified by the epileptologists. RESULTS In all eight patients, the majority of the ADTF-calculated source activity was observed within the clinically-defined SOZs. Furthermore, in three of the five patients with two separate epileptogenic foci, the calculated source activity was correlated with both cortical sites. CONCLUSIONS The ADTF method identified the cortical sources of the interictal spike activity as originating from the same cortical locations as the recorded ictal activity. SIGNIFICANCE Evaluation of the sources of the cortical networks obtained during interictal spikes may provide information as to the generators underlying the ictal activity.
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Jolly M, Pickard AS, Wilke C, Mikolaitis RA, Teh LS, McElhone K, Fogg L, Block J. Lupus-specific health outcome measure for US patients: the LupusQoL-US version. Ann Rheum Dis 2009; 69:29-33. [DOI: 10.1136/ard.2008.094763] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Patient-reported outcomes are valuable for the management of chronic diseases like systematic lupus erythematosus (SLE), but no measures have been validated for use in US-based patients with SLE.Objectives:To adapt and assess the validity and reliability of an SLE-specific quality of life (QoL) measure developed in the United Kingdom, the LupusQoL, for use in US-based patients with SLE.Methods:Debriefing interviews of subjects with SLE guided the language modifications of the tool. The LupusQoL-US, SF-36 and EQ5D were administered. Internal consistency (ICR) and test–retest (TRT) reliability, convergent and discriminative validity were examined. Factor analyses were performed.Results:The mean (SD) age of the 185 subjects with SLE was 42.5 (12.9) years. ICR and TRT of the eight domains ranged from 0.85 to 0.94 and 0.68 to 0.92, respectively. Related domains on the SF-36 correlated with the LupusQoL domains (physical health and physical function r = 0.73, physical health and role physical r = 0.57, emotional health and mental health r = 0.72, emotional health and role emotional r = 0.48, pain and bodily pain r = 0.66, fatigue and vitality r = 0.70, planning and social functioning r = 0.58). Most LupusQoL-US domains could discriminate between subjects with varied disease activity and damage. Principal component analysis disclosed five factors in the US version, with physical function, pain and planning items loading on one factor.Conclusions:These data provide evidence to support the psychometric properties of the LupusQoL-US, suggesting its utility as an assessment tool for patients with SLE in the USA.
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Wilke C, Röttger H, Adler L. Vortäuschung eines akuten zentralen Schwindelsyndroms mit internuklärer Ophthalmoplegie durch Überlagerung eines Duane-Syndroms mit einer Neuritis vestibularis. AKTUELLE NEUROLOGIE 2008. [DOI: 10.1055/s-0028-1086880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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