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Peyronnel C, Kessler J, Bobillier-Chaumont Devaux S, Houdayer C, Tournier M, Chouk M, Wendling D, Martin H, Totoson P, Demougeot C. A treadmill exercise reduced cardiac fibrosis, inflammation and vulnerability to ischemia-reperfusion in rat pristane-induced arthritis. Life Sci 2024; 341:122503. [PMID: 38354974 DOI: 10.1016/j.lfs.2024.122503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 01/24/2024] [Accepted: 02/11/2024] [Indexed: 02/16/2024]
Abstract
AIMS To explore cardiac structural and functional parameters and myocardial sensitivity to ischemia in a rat model of chronic arthritis, pristane-induced arthritis (PIA), and to investigate the effects of a running exercise protocol on cardiac disorders related to rheumatoid arthritis (RA). MAIN METHODS 3 groups of male Dark Agouti rats were formed: Controls, PIA and PIA-Exercise. The PIA-Exercise group was subjected to an individualized treadmill running protocol during the remission phase. At acute and chronic phases of PIA, cardiac structure was analyzed by histology. Cardiac function was explored in isolated hearts to measure left ventricular developed pressure (LVDP), cardiac compliance and infarct size before and after ischemia/reperfusion. Cardiac inflammation was evaluated through VCAM-1 mRNA expression by RT-qPCR. Plasma irisin levels were measured by ELISA. KEY FINDINGS PIA rats exhibited myocardial hypertrophy fibrosis and inflammation at the 2 inflammatory phases of the model. At chronic phase only, LVDP and cardiac compliance were lower in PIA compared to controls. As compared to sedentary PIA, exercise did not change cardiac function but reduced fibrosis, inflammation, infarct size, and arthritis severity and increased irisin levels. Cardiac inflammation positively correlated with fibrosis, while irisin levels negatively correlated with cardiac inflammation and fibrosis. SIGNIFICANCE In the PIA model that recapitulated most cardiac disorders of RA, a daily program of treadmill running alleviated cardiac fibrosis and inflammation and improved resistance to ischemia. These data provide arguments to promote the practice of exercise in RA patients for cardiac diseases prevention.
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Affiliation(s)
- C Peyronnel
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT 1098, F-25000 Besançon, France
| | - J Kessler
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT 1098, F-25000 Besançon, France; Service de Rhumatologie, Centre Hospitalier Louis Pasteur, F-39100 Dole, France
| | | | - C Houdayer
- Université de Franche-Comté, INSERM, UMR LINC 1322, DImaCell, Dispositif d'Imagerie Cellulaire, Besançon F-25030, France
| | - M Tournier
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT 1098, F-25000 Besançon, France
| | - M Chouk
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT 1098, F-25000 Besançon, France; Service de Rhumatologie, CHU Jean Minjoz, F-25000 Besançon, France
| | - D Wendling
- Service de Rhumatologie, CHU Jean Minjoz, F-25000 Besançon, France; Université de Franche-Comté, EPILAB, F-25000 Besançon, France
| | - H Martin
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT 1098, F-25000 Besançon, France
| | - P Totoson
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT 1098, F-25000 Besançon, France.
| | - C Demougeot
- Université de Franche-Comté, EFS, INSERM, UMR RIGHT 1098, F-25000 Besançon, France
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Ballasch I, De Kruif A, Hendel MK, Rohr C, Brünecke I, Kalbe E, Völter C, Kessler J. [O-DEM: a new cognitive screening in patients with hearing loss]. HNO 2023; 71:599-606. [PMID: 37095308 PMCID: PMC10462505 DOI: 10.1007/s00106-023-01293-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/14/2023] [Indexed: 04/26/2023]
Abstract
BACKGROUND Hearing loss is a significant risk factor for dementia. To date, cognitive impairment and dementia in patients with hearing impairment (HI) cannot be adequately diagnosed by commonly administered cognitive screening tests due to sensory impairments. Therefore, an adapted screening is needed. The aim of the present study was to develop and evaluate a cognitive screening for people with HI. MATERIALS AND METHODS The new cognitive screening, called O‑DEM, entails a word fluency test, the Trail Making Test A (TMT-A), and a subtraction task. First, the O‑DEM was tested in a large clinical sample (N = 2837) of people without subjective HI. In a second step, the O‑DEM was evaluated in 213 patients with objectively assessed HI and compared with the Hearing-Impaired Montreal Cognitive Assessment (HI-MoCA). RESULTS The results indicate that the O‑DEM subtests significantly discriminate between participants with no, mild, and moderate to severe cognitive impairment. Based on the mean and standard deviation of the participants without cognitive impairment, a transformation of the raw scores was performed and a total score with a maximum value of 10 was determined. In the second part of the study, the O‑DEM was shown to be as sensitive as the HI-MoCA in differentiating between people with and without cognitive impairment. CONCLUSION Compared to other screenings, the O‑DEM is a quickly administrable screening for the detection of mild and moderate cognitive impairment in people with HI.
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Affiliation(s)
- I Ballasch
- Klinik und Poliklinik für Neurologie, Uniklinik Köln, Köln, Deutschland
| | - A De Kruif
- Klinik für Hals‑, Nasen- und Ohrenheilkunde, Kopf- und Halschirurgie, Katholisches Klinikum, Ruhr-Universität Bochum, Bochum, Deutschland
| | - M K Hendel
- Klinik und Poliklinik für Neurologie, Uniklinik Köln, Köln, Deutschland
| | - C Rohr
- Klinik und Poliklinik für Neurologie, Uniklinik Köln, Köln, Deutschland
| | - I Brünecke
- Klinik und Poliklinik für Neurologie, Uniklinik Köln, Köln, Deutschland
| | - E Kalbe
- Medizinische Psychologie I Neuropsychologie und Gender Studies, Centrum für neuropsychologische Diagnostik und Intervention (CeNDI), Medizinische Fakultät und Uniklinik Köln, Universität zu Köln, Köln, Deutschland
| | - C Völter
- Klinik für Hals‑, Nasen- und Ohrenheilkunde, Kopf- und Halschirurgie, Katholisches Klinikum, Ruhr-Universität Bochum, Bochum, Deutschland
| | - J Kessler
- Klinik und Poliklinik für Neurologie, Uniklinik Köln, Köln, Deutschland.
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Ebbing C, Rasmussen S, Kessler J, Moster D. Association of placental and umbilical cord characteristics with cerebral palsy: national cohort study. Ultrasound Obstet Gynecol 2023; 61:224-230. [PMID: 36722428 PMCID: PMC10108292 DOI: 10.1002/uog.26047] [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] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 07/21/2022] [Accepted: 07/27/2022] [Indexed: 05/27/2023]
Abstract
OBJECTIVES Cerebral palsy (CP) is a group of movement disorders usually diagnosed in childhood. A substantial proportion are thought to be caused by antenatal events. Abnormalities of the umbilical cord and placenta are associated with an increased risk of adverse neonatal outcomes, but it is unclear whether these conditions also carry an increased risk of CP. We aimed to determine whether abnormalities of the umbilical cord or placenta are associated with CP and assess if these associations differ by sex of the child or gestational age at birth. METHODS We performed a national cohort study by linking data from The Medical Birth Registry of Norway with other national registries. All liveborn singletons born between 1999 and 2017 (n = 1 087 486) were included and followed up until the end of 2019. Diagnoses of CP were provided by the Norwegian National Insurance Scheme and the Norwegian Patient Register. We used generalized estimating equations and multilevel log binomial regression to calculate relative risks (RR), adjusted for year of birth, and stratified analyses were carried out based on sex and gestational age at birth. Exposures were abnormal umbilical cord (velamentous or marginal insertion, single umbilical artery (SUA), knots and entanglement), and placental abnormalities (retained placenta, placental abruption and previa). RESULTS A total of 2443 cases with CP (59.8% males) were identified. Velamentous cord insertion (adjusted RR (aRR), 2.11 (95% CI, 1.65-2.60)), cord knots (aRR, 1.53 (95% CI, 1.15-2.04)) and placental abnormalities (placenta previa (aRR, 3.03 (95% CI, 2.00-4.61)), placental abruption (aRR, 10.63 (95% CI, 8.57-13.18)) and retained placenta (aRR, 1.71 (95% CI, 1.32-2.22))) carried an increased risk of CP. Velamentous cord insertion was associated with CP regardless of gestational age or sex. A retained placenta was associated with a 2-fold increased risk for CP in males, while the associations of SUA and cord knot with CP were significant only among females. CONCLUSIONS The detection of placental and umbilical cord abnormalities may help identify children at increased risk of CP. The associations between placental or umbilical cord abnormalities and the risk of CP do not vary substantially with gestational age at birth or sex of the child. © 2023 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- C. Ebbing
- Department of Obstetrics and GynecologyHaukeland University HospitalBergenNorway
- Department of Clinical ScienceUniversity of BergenBergenNorway
| | - S. Rasmussen
- Department of Clinical ScienceUniversity of BergenBergenNorway
| | - J. Kessler
- Department of Obstetrics and GynecologyHaukeland University HospitalBergenNorway
- Department of Clinical ScienceUniversity of BergenBergenNorway
| | - D. Moster
- Department of Global Public Health and Primary CareUniversity of BergenBergenNorway
- Department of PediatricsHaukeland University HospitalBergenNorway
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Liu J, Ladbury C, Amini A, Glaser S, Kessler J, Lee A, Chen Y. Combination of Yttrium-90 Radioembolization With Stereotactic Body Radiation Therapy in the Treatment of Portal Vein Tumor Thrombosis. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kessler J, Chouk M, Ruban T, Prati C, Wendling D, Verhoeven F. POS1039 PSORIATIC ARTHRITIS AND PHYSICAL ACTIVITY, A SYSTEMATIC REVIEW. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:The beneficial effects of physical activity (PA) have been demonstrated in rheumatoid arthritis and ankylosing spondylitis on disease and co-morbidities while they are not clearly established in psoriatic arthritis.Objectives:Thus, the aim of this study was, on the basis of a systematic review of the literature, (i) to assess the level of physical activity in these patients and (ii) to determine the effects of physical activity on joint and extra articular symptoms and on well-being.Methods:The research strategy was performed on Pubmed, Cochrane,and PEDro databases using the following keywords: “psoriatic arthritis AND physical activity” without restriction. Articles published in English before October 2019 were identified and selected according to the PRISMA methodology by two independent investigators. In case of disagreement, a third investigator was interviewed. To be included in the qualitative synthesis, the studies had to meet the PICOS criteria.Results:Among the 259 studies identified, 13 were finally included. 241 were excluded because they did not address the topic or were not in English and 5 were duplicated. Two epidemiological studies revealed that 17 and 68 % of patients comply with WHO recommendations for the general population in terms of physical activity. The main explanations expressed by patients are; a lack of promotion of physical activity by the rheumatologist and the fear of pain during the movement also called “kinesiophobia”. Among the three prospective randomized clinical trials, one of them showed a significant 20% reduction in the BASDAI (Bath Ankylosing Spondylitis Disease) and a 25% reduction in pain. Fatigue was significantly reduced by 15% following a physical activity protocol on a cyclergometer for 11 weeks. Muscle strength and maximum VO2 were significantly improved after participation in the physical activity protocol in two of the clinical trials. Four retrospective studies evaluated the effect of physical activity on the risk of enthesitis or dactylitis. None were associated with an increased risk of enthesitis. However, physical activity was found to be a risk factor for structural remodelling of the Achilles tendon. And, avoiding physical activity seems to be a protective factor against the risk of enthesitis. On the other hand, the three clinical trials did not mention any increase in the disease’s activity score. Finally, the effects of four rehabilitation programs have been evaluated in psoriatic arthritis and other inflammatory rheumatism. The beneficial effects were modest and concerned the reduction of pain for all the programs and of fatigue for two of the programs.Conclusion:The studies showed a beneficial effect of physical activity on disease activity, on well-being and on comorbidities. The data on the risk of enthesitis are reassuring. Further investigations are necessary to confirm these results and to precise the modalities of exercise.Table 1.PICOS criteria according to PRISMA methodology.ParticipantsAdults > 18 years old,Psoriatic Arthritis defined to CASPAR classification criteria (2006) or Moll Wright criteria (1973)InterventionAny type of physical activity regardless of intensity and durationComparisonControl group (not mandatory)OutcomesLevel of physical activityDisease activity scoreComorbiditiesStudy designNo restrictionDisclosure of Interests:None declared.
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Sakabe NJ, Aneas I, Knoblauch N, Sobreira DR, Clark N, Paz C, Horth C, Ziffra R, Kaur H, Liu X, Anderson R, Morrison J, Cheung VC, Grotegut C, Reddy TE, Jacobsson B, Hallman M, Teramo K, Murtha A, Kessler J, Grobman W, Zhang G, Muglia LJ, Rana S, Lynch VJ, Crawford GE, Ober C, He X, Nóbrega MA. Transcriptome and regulatory maps of decidua-derived stromal cells inform gene discovery in preterm birth. Sci Adv 2020; 6:eabc8696. [PMID: 33268355 PMCID: PMC7710387 DOI: 10.1126/sciadv.abc8696] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 10/19/2020] [Indexed: 05/29/2023]
Abstract
While a genetic component of preterm birth (PTB) has long been recognized and recently mapped by genome-wide association studies (GWASs), the molecular determinants underlying PTB remain elusive. This stems in part from an incomplete availability of functional genomic annotations in human cell types relevant to pregnancy and PTB. We generated transcriptome (RNA-seq), epigenome (ChIP-seq of H3K27ac, H3K4me1, and H3K4me3 histone modifications), open chromatin (ATAC-seq), and chromatin interaction (promoter capture Hi-C) annotations of cultured primary decidua-derived mesenchymal stromal/stem cells and in vitro differentiated decidual stromal cells and developed a computational framework to integrate these functional annotations with results from a GWAS of gestational duration in 56,384 women. Using these resources, we uncovered additional loci associated with gestational duration and target genes of associated loci. Our strategy illustrates how functional annotations in pregnancy-relevant cell types aid in the experimental follow-up of GWAS for PTB and, likely, other pregnancy-related conditions.
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Affiliation(s)
- Noboru J Sakabe
- Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA
| | - Ivy Aneas
- Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA
| | - Nicholas Knoblauch
- Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA
| | - Debora R Sobreira
- Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA
| | - Nicole Clark
- Department of Pediatrics, Center for Genomic and Computational Biology, Duke University, Durham, NC 27705, USA
| | - Cristina Paz
- Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA
| | - Cynthia Horth
- Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA
| | - Ryan Ziffra
- Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA
| | - Harjot Kaur
- Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA
| | - Xiao Liu
- Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA
| | - Rebecca Anderson
- Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA
| | - Jean Morrison
- Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA
| | - Virginia C Cheung
- Department of Neurology and Institute for Stem Cell Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Chad Grotegut
- Department of Obstetrics and Gynecology, Duke University Health System, Durham, NC 27713, USA
| | - Timothy E Reddy
- Department of Biostatistics and Bioinformatics, Center for Genomic and Computational Biology, Duke University, Durham, NC 27708, USA
| | - Bo Jacobsson
- Department of Obstetrics and Gynecology, University of Gothenberg, Gothenberg, Sweden
- Department of Genetics and Bioinformatics, Area of Health Data and Digitalization, Institute of Public Health, Oslo, Norway
| | - Mikko Hallman
- Department of Children and Adolescents, Oulu University Hospital, Oulu, Finland
| | - Kari Teramo
- Department of Obstetrics and Gynecology, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland
| | - Amy Murtha
- Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, Duke University School of Medicine, Durham, NC 27713, USA
| | - John Kessler
- Department of Neurology and Institute for Stem Cell Medicine, Northwestern University, Chicago, IL 60611, USA
| | - William Grobman
- Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Ge Zhang
- Division of Human Genetics, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA
| | - Louis J Muglia
- Department of Obstetrics and Gynecology, University of Chicago, Chicago IL 60637, USA
| | - Sarosh Rana
- Department of Obstetrics and Gynecology, University of Chicago, Chicago IL 60637, USA
| | - Vincent J Lynch
- Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA
| | - Gregory E Crawford
- Department of Pediatrics, Center for Genomic and Computational Biology, Duke University, Durham, NC 27705, USA
| | - Carole Ober
- Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA.
- Department of Obstetrics and Gynecology, University of Chicago, Chicago IL 60637, USA
| | - Xin He
- Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA.
| | - Marcelo A Nóbrega
- Department of Human Genetics, University of Chicago, Chicago, IL 60637, USA.
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Smith C, Nayak S, Mahenthiran A, Wang Y, Fyrner T, McClendon M, Mania-Farnell B, Kessler J, Tomita T, James C, Stupp S, XI G. EXTH-48. BMP4 BINDING PEPTIDE AMPHIPHILE NANOFIBERS FOR THE TREATMENT OF PEDIATRIC HIGH-GRADE GLIOMAS. Neuro Oncol 2020. [DOI: 10.1093/neuonc/noaa215.402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Pediatric high-grade glioma (pHGG) is among the most formidable cancers occurring in childhood. Bone morphogenetic protein 4 (BMP4) reduces the number of glioma stem-like cells and induces apoptosis. Treating tumors with exogenous BMP4 could prove effective in treating gliomas. However, a short half-life limits its clinical application. Glycosylated peptide amphiphile (GlycoPA), with a design inspired by heparin’s natural ability to bind growth factors including BMP4 through non-covalent interactions, was previously characterized and found to form high-aspect ratio supramolecular nanofibers that present growth-factor binding sulfated monosaccharides on their surface. These supramolecular nanofibers could carry excessive amounts of growth factor and markedly enhance their biological function. In this study, we verified that GlycoPA is able to bind BMP4 and dramatically increase its half-life with an ELISA assay. We also show that GlycoPA-BMP4, in comparison to free BMP4, significantly decreases pHGG cells’ proliferation in vitro. Initial in vivo intracranial distribution experimental results showed that GlycoPA has a superior normal brain distribution in comparison to a control PA (E2 PA) that has the same base structure as GlycoPA except with no glycosylated group. Preliminary results show that GlycoPA-BMP4 markedly decreases pediatric glioma tumor growth in comparison to free BMP4. Our combined in vitro and in vivo results demonstrate PA supramolecular nanofibers as an innovative and promising BMP4 delivery platform for clinical application in the treatment of brain tumors. Our future directions will investigate the therapeutic efficacy of GlycoPA-BMP4 in pediatric HGG through testing large numbers of animals and introducing first-line clinical chemotherapy drugs in combination and in various consequence.
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Affiliation(s)
- Cara Smith
- Northwestern University, Chicago, IL, USA
| | | | | | - Yufen Wang
- Northwestern University, Chicago, IL, USA
| | | | | | | | | | | | - Charles James
- Northwestern Feinberg School of Medicine, Chicago, IL, USA
| | | | - Guifa XI
- Northwestern University, Chicago, IL, USA
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Latarnik S, Wirth K, Held A, Kalbe E, Kessler J, Saliger J, Karbe H, Fink GR, Weiss PH. [Prevalence and characteristics of apraxic deficits after left and right hemisphere stroke]. Fortschr Neurol Psychiatr 2020; 88:232-240. [PMID: 32325517 DOI: 10.1055/a-1082-6501] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
ZusammenfassungDie überwiegende Anzahl bisheriger Studien zu Apraxien fokussiert die Rolle der linken Hemisphäre (LH), obwohl im klinischen Alltag apraktische Defizite auch bei Patienten mit rechtshemisphärischen Schlaganfällen (RH) beobachtet werden. Daher wurden in der aktuellen Untersuchung die Prävalenz und Ausprägung apraktischer Defizite bei Patienten mit linkshemisphärischen (n = 66) und rechtshemisphärischen (n = 73) Schlaganfällen verglichen, nachdem für Alter und sprachliche Leistung kontrolliert worden war.Unter Anwendung dieser Kontrollvariablen ergab sich kein signifikanter Unterschied zwischen den linkshemisphärisch und rechtshemisphärisch betroffenen Patienten bei der Imitation von Handpositionen. Übereinstimmend mit früheren Berichten schnitten die Patienten mit rechtshemisphärischen Schlaganfällen aber bei der Imitation der Fingerkonstellationen schlechter ab. Interessanterweise zeigten die rechtshemisphärisch betroffenen Patienten auch geringere Leistungen bei den bukkofazialen Items des Kölner Apraxie Screenings (KAS), vornehmlich bei Gesten der oberen Gesichtshälfte. Für beide Patientengruppen wirkten sich sprachliche Auffälligkeiten mehr auf die Pantomime- als auf die Imitationsleistungen beeinträchtigend aus.Die Ergebnisse legen nahe, dass nach der Kontrolle für Alter und sprachliche Leistungen die Prävalenz und Ausprägung apraktischer Defizite bei Patienten mit rechts- und linkshemisphärischen Schlaganfällen nicht signifikant unterschiedlich sind und in den jeweiligen Rehabilitationsprogrammen entsprechend berücksichtigt werden sollten.
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Affiliation(s)
- S Latarnik
- Klinik und Poliklinik für Neurologie, Medizinische Fakultät und Uniklinik Köln, Universität zu Köln
- Kognitive Neurowissenschaften, Institut für Neurowissenschaft und Medizin (INM-3), Forschungszentrum Jülich
| | - K Wirth
- Klinik und Poliklinik für Neurologie, Medizinische Fakultät und Uniklinik Köln, Universität zu Köln
| | - A Held
- Klinik und Poliklinik für Neurologie, Medizinische Fakultät und Uniklinik Köln, Universität zu Köln
| | - E Kalbe
- Medizinische Psychologie | Neuropsychologie & Gender Studies, Center für Neuropsychologische Diagnostik und Intervention (CeNDI), Medizinische Fakultät und Uniklinik Köln, Universität zu Köln
| | - J Kessler
- Klinik und Poliklinik für Neurologie, Medizinische Fakultät und Uniklinik Köln, Universität zu Köln
| | - J Saliger
- Neurologisches Rehabilitationszentrum Gödeshöhe
| | - H Karbe
- Neurologisches Rehabilitationszentrum Gödeshöhe
| | - G R Fink
- Klinik und Poliklinik für Neurologie, Medizinische Fakultät und Uniklinik Köln, Universität zu Köln
- Kognitive Neurowissenschaften, Institut für Neurowissenschaft und Medizin (INM-3), Forschungszentrum Jülich
| | - P H Weiss
- Klinik und Poliklinik für Neurologie, Medizinische Fakultät und Uniklinik Köln, Universität zu Köln
- Kognitive Neurowissenschaften, Institut für Neurowissenschaft und Medizin (INM-3), Forschungszentrum Jülich
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Ebbing C, Kessler J, Moster D, Rasmussen S. Single umbilical artery and risk of congenital malformation: population-based study in Norway. Ultrasound Obstet Gynecol 2020; 55:510-515. [PMID: 31132166 DOI: 10.1002/uog.20359] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [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: 01/16/2019] [Revised: 05/06/2019] [Accepted: 05/14/2019] [Indexed: 06/09/2023]
Abstract
OBJECTIVES Single umbilical artery (SUA) is associated with congenital malformations in most organ systems, but reported findings have not been consistent. While it has been suggested that genetic and persisting environmental factors influence the development of SUA, it is not known whether there is an increased risk of recurrence in a subsequent pregnancy of the same woman. The aims of this study were to investigate the occurrence of, and risk factors for, SUA in Norway, to assess its association with congenital malformations and trisomies 13, 18 and 21 and to study the risk of recurrence of SUA in subsequent pregnancies. METHODS This was a population-based study of all (n = 918 933) singleton pregnancies of > 16 weeks' gestation recorded in the Medical Birth Registry of Norway from 1999 to 2014. To identify risk factors and congenital malformations associated with SUA, generalized estimating equations and logistic regression were used to calculate odds ratios (OR) with 95% CIs. ORs were also calculated for the recurrence of SUA in subsequent pregnancy. RESULTS The occurrence of SUA in our population was 0.46% (4241/918 933). Parity ≥ 4, smoking, maternal pregestational diabetes, epilepsy, chronic hypertension, previous Cesarean delivery and conception by assisted reproductive technology increased the odds of having SUA. There was a particularly strong association between SUA and gastrointestinal atresia or stenosis in the neonate, with ORs of 25.8 (95% CI, 17.0-39.1) and 20.3 (95% CI, 13.4-30.9) for esophageal and anorectal atresia or stenosis, respectively, followed by an OR of 5.9 (95% CI, 1.9-18.5) for renal agenesis. SUA was associated with an up to 7-8 times increased risk of congenital heart defects. There was an association with microcephaly, congenital hydrocephalus and other congenital malformations of the brain and spinal cord. Diaphragmatic hernia, limb reductions and cleft lip or palate had a weaker association with SUA, with ORs ranging from 4.8 to 2.8. The associations with trisomy 18 and 13 were equally strong (OR 14.4 (95% CI, 9.3-22.4) and OR 13.6 (95% CI, 6.7-27.8), respectively), and the risk of trisomy 21 was doubled (OR 2.1 (95% CI, 1.2-3.6)). Pregnancies with SUA, with or without an associated malformation, had a 2-fold increased risk for SUA in a subsequent pregnancy. CONCLUSIONS SUA is associated strongly with gastrointestinal atresia or stenosis, suggesting common developmental mechanisms. The increased risk of recurrence of SUA suggests that genetic and/or persisting environmental factors influence the risk. We found that SUA had equally strong associations with trisomies 13 and 18. © 2019 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of the International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- C Ebbing
- Department of Obstetrics and Gynecology, Haukeland University Hospital, Bergen, Norway
| | - J Kessler
- Department of Obstetrics and Gynecology, Haukeland University Hospital, Bergen, Norway
| | - D Moster
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
- Department of Pediatrics, Haukeland University Hospital, Bergen, Norway
| | - S Rasmussen
- Department of Obstetrics and Gynecology, Haukeland University Hospital, Bergen, Norway
- Department of Clinical Science, University of Bergen, Bergen, Norway
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XI G, Mahenthiran A, Best B, Nayak S, Smith C, McClendon M, Mania-Farnell B, Kessler J, James C, Stupp S, Tomita T. EXTH-18. PEPTIDE NANO-STRUCTURES ENHANCE PEDIATRIC BRAIN TUMOR CHEMOTHERAPEUTIC EFFICACY. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz175.352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Pediatric gliomas, particularly high-grade gliomas, which include diffuse intrinsic pontine gliomas (DIPGs), are among the most formidable and devastating cancers in children. These tumors remain incurable, despite many treatment approaches. We recently identified a small population of glioma cells with stem-like features in pediatric gliomas (glioma stem cells: GSCs), that may be responsible, for therapeutic resistance. Bone morphogenetic protein 4 (BMP4), essential for CNS development, increases GSC therapeutic sensitivity and is a promising adjuvant for glioma treatment. Mechanisms through which BMP4 increases therapeutic sensitivity need to be elucidated, as this can lead to identification of additional treatment targets and delivery systems for BMP4 administration in a clinical setting. Additionally, extension of BMP4 short half-life would enhance its’ clinical application. Here we show that BMP4 increases chemosensitivity by decreasing H3K4me3 at the promoter of multidrug resistant gene 1 (MDR1), resulting in decreased MDR1 expression. BMP4 appears to bring about this effect by decreasing hSETD1A, an H3K4me3 methyltransferase. Our work also demonstrates the first use of a novel sulfated glycopeptide (glyco-PA) nanostructure as a vector for BMP4 delivery. Glyco-PA markedly extended and enhanced BMP4 function, and increased chemotherapeutic anti-tumor activity against pediatric malignant glioma cells in culture. Overall, this work illuminates BMP4 effects on pediatric glioma therapeutic sensitivity through epigenetic mechanisms, and demonstrates the potential of bioactive glyco-PA nanostructures as a delivery mechanism for treating pediatric malignant gliomas and other tumors.
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Affiliation(s)
- Guifa XI
- Lurie Children’s Hospital of Chicago, Chicago, IL, USA
| | | | - Benjamin Best
- Lurie Children’s Hospital of Chicago, Chicago, IL, USA
| | - Sonali Nayak
- Lurie Children’s Hospital of Chicago, Chicago, IL, USA
| | - Cara Smith
- Northwestern University, Chicago, IL, USA
| | | | | | - John Kessler
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Charles James
- Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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Storm Van's Gravesande K, Calabrese P, Blaschek A, Rostásy K, Huppke P, Rothe L, Mall V, Kessler J, Kalbe E, Dornfeld E, Elpers C, Lohmann H, Weddige A, Hagspiel S, Kirschner J, Brehm M, Blank C, Schubert J, Schimmel M, Pacheè S, Mohrbach M, Karenfort M, Kamp G, Lücke T, Neumann H, Lutz S, Gierse A, Sievers S, Schiffmann H, de Soye I, Trollmann R, Candova A, Rosner M, Neu A, Romer G, Seidel U, John R, Hofmann C, Schulz, Kinder S, Bertolatus A, Scheidtmann K, Lasogga R, Leiz S, Alber M, Kranz J, Bajer-Kornek B, Seidl R, Novak A. The Multiple Sclerosis Inventory of Cognition for Adolescents (MUSICADO): A brief screening instrument to assess cognitive dysfunction, fatigue and loss of health-related quality of life in pediatric-onset multiple sclerosis. Eur J Paediatr Neurol 2019; 23:792-800. [PMID: 31551133 DOI: 10.1016/j.ejpn.2019.08.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 07/23/2019] [Accepted: 08/22/2019] [Indexed: 10/26/2022]
Abstract
OBJECTIVE Screening for cognitive impairment (CI), fatigue and also Health-related quality of life (HRQoL) in patients with pediatric-onset multiple sclerosis (POMS) is of utmost importance in clinical practice. The aim of this study was to establish a new and validated pediatric screening tool "MUSICADO" that is easy to use and time economical. METHODS 106 patients with POMS aged 12-18 years and 210 healthy controls (HCs) stratified for age and education underwent neuropsychological testing including a screening test "Multiple Sclerosis Inventory of Cognition" for adults and 8 standardized cognitive tests and established scales to assess fatigue and HRQoL. RESULTS The phonemic verbal fluency task (RWT "s-words"), the Trail Making Test A (TMT-A), and the Digit Span Forward discriminated significantly between patients and HCs (p = 0.000, respectively) and showed the highest proportion of test failure in patients (24.5%, 17.9%; 15.1%, respectively). Therefore, they were put together to form the cognitive part of the "MUSICADO". After applying a scoring algorithm with balanced weighting of the subtests and age and education correction and a cut-off score for impairment, 35.8% of patients were categorized to be cognitively impaired (specificity: 88.6%). Fatigue was detected in 37.1% of the patients (specificity: 94.0%) and loss of HRQoL in 41.8% (specificity 95.7%) with the screening version, respectively. CONCLUSION The MUSICADO is a newly designed brief and easy to use screening test to help to early identify CI, fatigue, and loss of HRQoL in patients with POMS as cut scores are provided for all three items. Further studies will have to show its usability in independent samples of patients with POMS.
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Affiliation(s)
- K Storm Van's Gravesande
- Department of Pediatrics, Child and Adolescent Psychosomatics, Technische Universität München, Munich, Heigelhofstr. 63, 81377 München, Germany.
| | - P Calabrese
- Neuropsychology and Behavioral Neurology Unit, Division of Molecular and Cognitive Neuroscience, Department of Psychology, University of Basel, Birmannsgasse 8, 4055 Basel, Switzerland
| | - A Blaschek
- Department of Pediatric Neurology and Developmental Medicine, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University, Lindwurmstrasse 4, 80337 Munich, Germany
| | - K Rostásy
- Pediatric Neurology, Witten/Herdecke University, Children's Hospital Datteln, Dr. Friedrich Steiner Str. 5, 5711 Datteln, Germany
| | - P Huppke
- Department of Pediatrics and Adolescent Medicine, Division of Pediatric Neurology, University Medical Center Göttingen, Robert-Koch Strasse 40, 37075 Göttingen, Germany
| | - L Rothe
- Department of Neurology, University Hospital Cologne, Kerpenerstr. 62, 50937 Cologne, Germany
| | - V Mall
- Department of Pediatrics, Child and Adolescent Psychosomatics, Technische Universität München, Munich, Heigelhofstr. 63, 81377 München, Germany
| | - J Kessler
- Department of Neurology, University Hospital Cologne, Kerpenerstr. 62, 50937 Cologne, Germany
| | - E Kalbe
- Department of Medical Psychology ǀ, Neuropsychology and Gender Studies & Center for Neuropsychological Diagnostics and Intervention (CeNDI), University Hospital Cologne, Kerpenerstr. 62, 50937 Cologne, Germany
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Latarnik S, Wirth K, Held A, Kalbe E, Kessler J, Saliger J, Karbe H, Fink G, Weiss P. P52 Prevalence and characteristics of apraxic deficits after left and right hemisphere stroke. Clin Neurophysiol 2019. [DOI: 10.1016/j.clinph.2019.04.700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Sastry NG, Huang T, Alvarez A, Pangeni R, Song X, Wan X, Kessler J, Nakano I, Hu B, Cheng SY. Abstract 3432: Novel roles of LY6K in glioblastoma tumorigenesis. Cancer Res 2019. [DOI: 10.1158/1538-7445.am2019-3432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Glioblastoma (GBM) is the most malignant brain cancer, with extremely poor prognosis in patients. GBM tumors are characterized by distinct molecular subtypes, known as proneural (PN), classical, and mesenchymal (MES). Inherited heterogeneity and aberrant aggressiveness contribute to therapy resistance and frequent recurrence of malignant GBM tumors. In addition, GBM tumors also contain a small subpopulation of tumor-initiating or stem-like cancer cells (GSCs). Gene expression profiling studies from our laboratory showed that patient-derived GSCs can also be classified into two subtypes, PN and MES, that are phenotypically similar to clinical GBM. Among three thousand genes that are differentially expressed between PN and MES-like GSCs, Lymphocyte Antigen 6 Complex, Locus K (LY6K) was identified as one of the top differentially expressed genes. LY6K is a GPI-anchored protein from the LY6 family. Several members of the LY6 family have been implicated in human cancers, including breast, esophageal, and lung cancers. Moreover, the function of LY6K in GBM has not been reported. Here, we examined the roles of LY6K upregulation in GBM tumorigenesis and investigated the underlying mechanism of LY6K action. We hypothesized that high levels of LY6K in GSCs promotes GBM tumorigenesis. Based on our other preliminary data, we further hypothesized that LY6K functions by enhancing ERK activation, thus promoting radioresistance. To test our hypotheses, we first examined the role of LY6K in advancing GBM tumorigenic behaviors of GSCs. We performed in vitro and in vivo tumorigenicity assays and showed that the presence of LY6K significantly increases GSC cell growth and glioma sphere forming ability in vitro and promotes tumor formation in orthotopic brain xenograft mouse models. The underlying mechanism governing LY6K expression was found to be DNA promoter methylation. Moreover, irradiation strongly induces LY6K expression via demethylation of LY6K promoter in GSCs with otherwise undetectable levels of LY6K. Furthermore, we investigated the mechanism by which LY6K contributes to GSC tumorigenicity. We observed that there is a strong relationship between LY6K and ERK signaling in GSCs and U87 glioma cells. The presence of LY6K stimulates ERK activation and subsequently augments cell proliferation of GSCs. Lastly, we identified the GPI-anchor domain of LY6K as a key region in enhancing ERK activation and are currently examining the mechanistic properties of this domain. The mechanistic insights gained from our studies will advance current knowledge of aberrantly upregulated LY6K and ERK signaling enhancement in promoting GBM tumorigenicity.
Citation Format: Namratha G. Sastry, Tianzhi Huang, Angel Alvarez, Rajendra Pangeni, Xiao Song, Xuechao Wan, John Kessler, Ichiro Nakano, Bo Hu, Shi-Yuan Cheng. Novel roles of LY6K in glioblastoma tumorigenesis [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2019; 2019 Mar 29-Apr 3; Atlanta, GA. Philadelphia (PA): AACR; Cancer Res 2019;79(13 Suppl):Abstract nr 3432.
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Affiliation(s)
| | | | | | | | - Xiao Song
- Northwestern University, Chicago, IL
| | | | | | | | - Bo Hu
- Northwestern University, Chicago, IL
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Huang T, Kwon Kim C, Alvarez A, Pangeni R, Wan X, Xiao S, Shi T, Yang Y, Sastry N, Horbinski C, Lu S, Stupp R, Kessler J, Nishikawa R, Nakano I, Sulman E, Lu X, James CD, Yin XM, Hu B, Cheng SY. CSIG-35. MST4 PHOSPHORYLATION OF ATG4B REGULATES AUTOPHAGIC ACTIVITY, TUMORIGENICITY, AND RADIORESISTANCE IN GLIOBLASTOMA. Neuro Oncol 2018. [DOI: 10.1093/neuonc/noy148.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | | | | | | | | | - Song Xiao
- Northwestern University, Chicago, IL, USA
| | | | | | | | - Craig Horbinski
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Songjian Lu
- University of Pittsburgh, Pittsburgh, PA, USA
| | - Roger Stupp
- Northwestern University, Feinberg School of Medicine, Chicago, IL, USA
| | - John Kessler
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Ryo Nishikawa
- Department of Neuro-Oncology/Neurosurgery, Saitama International Medical Center, Saitama Medical University, Hidaka-city, Saitama, Japan
| | - Ichiro Nakano
- Department of Neurosurgery, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - Erik Sulman
- University of Texas M. D. Anderson Cancer Center, Houston, TX, USA
| | - Xinghua Lu
- Dept. of Biomedical Informatics, University of Pittsburgh, Pittsburgh, PA, USA
| | - C David James
- Northwestern University, Feinberg School of Medicine, Chicago, IL, USA
| | | | - Bo Hu
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Shi-Yuan Cheng
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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Sletten J, Cornelissen G, Assmus J, Kiserud T, Albrechtsen S, Kessler J. Maternal exercise, season and sex modify the daily fetal heart rate rhythm. Acta Physiol (Oxf) 2018; 224:e13093. [PMID: 29754451 DOI: 10.1111/apha.13093] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 04/18/2018] [Accepted: 05/03/2018] [Indexed: 12/01/2022]
Abstract
AIM The knowledge on biological rhythms is rapidly expanding. We aimed to define the longitudinal development of the daily (24-hour) fetal heart rate rhythm in an unrestricted, out-of-hospital setting and to examine the effects of maternal physical activity, season and fetal sex. METHODS We recruited 48 women with low-risk singleton pregnancies. Using a portable monitor for continuous fetal electrocardiography, fetal heart rate recordings were obtained around gestational weeks 24, 28, 32 and 36. Daily rhythms in fetal heart rate and fetal heart rate variation were detected by cosinor analysis; developmental trends were calculated by population-mean cosinor and multilevel analysis. RESULTS For the fetal heart rate and fetal heart rate variation, a significant daily rhythm was present in 122/123 (99.2%) and 116/121 (95.9%) of the individual recordings respectively. The rhythms were best described by combining cosine waves with periods of 24 and 8 hours. With increasing gestational age, the magnitude of the fetal heart rate rhythm increased, and the peak of the fetal heart rate variation rhythm shifted from a mean of 14:25 (24 weeks) to 20:52 (36 weeks). With advancing gestation, the rhythm-adjusted mean value of the fetal heart rate decreased linearly in females (P < .001) and nonlinearly in males (quadratic function, P = .001). At 32 and 36 weeks, interindividual rhythm diversity was found in male fetuses during higher maternal physical activity and during the summer season. CONCLUSION The dynamic development of the daily fetal heart rate rhythm during the second half of pregnancy is modified by fetal sex, maternal physical activity and season.
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Affiliation(s)
- J Sletten
- Department of Clinical Science, University of Bergen, Bergen, Norway
| | - G Cornelissen
- Department of Integrative Biology and Physiology, Halberg Chronobiology Center, University of Minnesota, Minneapolis, MN, USA
| | - J Assmus
- Centre for Clinical Research, Haukeland University Hospital, Bergen, Norway
| | - T Kiserud
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Obstetrics and Gynecology, Haukeland University Hospital, Bergen, Norway
| | - S Albrechtsen
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Obstetrics and Gynecology, Haukeland University Hospital, Bergen, Norway
| | - J Kessler
- Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Obstetrics and Gynecology, Haukeland University Hospital, Bergen, Norway
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Xi G, Best B, Nayak S, McClendon M, Mania-Farnell B, Kessler J, James CD, Stupp S, Tomita T. Abstract 3175: Sulfated glycopeptide nanostructures activate and extend bone morphogenetic protein 4 ability to increase pediatric malignant glioma chemotherapeutic efficacy. Cancer Res 2018. [DOI: 10.1158/1538-7445.am2018-3175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Pediatric gliomas, particularly high-grade gliomas, are among the most formidable and devastating cancers in children. These tumors have remained incurable, regardless of the many treatment approaches attempted. We recently identified a small population of glioma cells with stem-like features in pediatric gliomas (glioma stem cells: GSCs), that may be responsible, for therapeutic resistance in pediatric gliomas. Signaling by bone morphogenetic protein 4 (BMP4), an essential molecule for central nervous system (CNS) development, increases GSC therapeutic sensitivity, and whose activation is a promising adjuvant for glioma treatment. Mechanisms through which BMP4 increases therapeutic sensitivity need to be elucidated as this can lead to the identification of additional targets for treating malignant gliomas in children. Delivery systems for administering BMP4 in a clinical setting also need to be developed. Here, we show that BMP4 increases chemosensitivity by decreasing H3 lysine 4 trimethylation (H3K4me3) at the promoter of multidrug resistant gene 1 (MDR1) that, in turn, results in increased BMP4 expression. This appears to be the result of BMP4 decreasing levels of hSETD1A, a critical methyltransferase for H3K4me3. Our work also demonstrates the first use of a novel sulfated glycopeptide (glycol-PA) nanostructure as a vector for delivery of BMP4. Glycol-PA markedly extended and enhanced BMP4 function, and increased chemotherapeutic anti-tumor activity against pediatric malignant glioma cells in culture. Overall, our results expand understanding of how BMP4 brings about glioma therapeutic sensitization through epigenetic mechanisms, and show that highly bioactive glyco-PA nanostructures have potential as a novel delivery mechanism for treating pediatric malignant glioma, as well as other tumors.
Citation Format: Guifa Xi, Benjamin Best, Sonali Nayak, Mark McClendon, Barbara Mania-Farnell, John Kessler, Charles David James, Samuel Stupp, Tadanori Tomita. Sulfated glycopeptide nanostructures activate and extend bone morphogenetic protein 4 ability to increase pediatric malignant glioma chemotherapeutic efficacy [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr 3175.
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Affiliation(s)
- Guifa Xi
- 1Ann & Robert H. Lurie Children's Hosp. of Chicago, Chicago, IL
| | - Benjamin Best
- 1Ann & Robert H. Lurie Children's Hosp. of Chicago, Chicago, IL
| | - Sonali Nayak
- 1Ann & Robert H. Lurie Children's Hosp. of Chicago, Chicago, IL
| | | | | | - John Kessler
- 4Feinberg School of Medicine, Northwestern University, Chicago, IL
| | | | | | - Tadanori Tomita
- 1Ann & Robert H. Lurie Children's Hosp. of Chicago, Chicago, IL
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Huang T, Kim CK, Alvarez AA, Pangeni RP, Wan X, song X, shi T, Yongyong Y, Sastry N, Horbinski C, Lu S, Stupp R, Kessler J, Nishikawa R, Nakano I, Sulman E, Lu X, James CD, Yin XM, Hu B, Cheng SY. Abstract 1122: MST4 phosphorylation of ATG4B regulates autophagic activity, tumorigenicity, and radio resistance in glioblastoma. Cancer Res 2018. [DOI: 10.1158/1538-7445.am2018-1122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Autophagy-mediated intracellular catabolism sustains the rapid growth of established tumors and tumors in response to multiple stresses including genotoxic/cytotoxic therapies. Here we identify and validate ATG4B, a key regulator that stimulates autophagic process by promoting autophagosome through reversible modification of ATG8 as a novel substrate of mammalian sterile20-like kinase (STK) 26/MST4 that is less known for its function in cellular process (none in autophagy) and unknown authentic substrates in cancer. We show that MST4 phosphorylates ATG4B at serine residue 383, which stimulates ATG4B activity and increases autophagic flux. Inhibition of MST4 or ATG4B activities suppresses autophagic process and the tumorigenicity of glioblastoma (GBM) cells. Furthermore, radiation induces MST4 expression, ATG4B phosphorylation and autophagy. Inhibiting ATG4B in combination with radiotherapy in treating mice with intracranial GBM tumor xenografts markedly slows tumor growth and provides significant survival benefit to animal subjects. This study not only describes a novel regulatory mechanism by which the MST4-ATG4B axis accelerates autophagic process, regulates GBM tumorigenicity, and responses to radiotherapy (RT), but also explores imminent clinical utility of combination of ATG4B inhibition with RT to suppress orthotopic GBM tumor xenografts. This study should prove generalizable to other types of cancer and have positive impacts in advancing our knowledge of cancer biology and designing new cancer treatments.
Citation Format: Tianzhi Huang, Chung Kwon Kim, Angel A. Alvarez, Rajendra P Pangeni, Xuechao Wan, xiao song, Taiping shi, Yongyong Yongyong, Namratha Sastry, Craig Horbinski, Songjian Lu, Roger Stupp, John Kessler, Ryo Nishikawa, Ichiro Nakano, Erik Sulman, Xinghua Lu, Charles David James, Xiao-Ming Yin, Bo Hu, Shi-Yuan Cheng. MST4 phosphorylation of ATG4B regulates autophagic activity, tumorigenicity, and radio resistance in glioblastoma [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr 1122.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Ryo Nishikawa
- 3Saitama Medical University International Medical Center, Saitama, Japan
| | - Ichiro Nakano
- 4The University of Alabama at Birmingham, Birmingham, AL
| | - Erik Sulman
- 5The University of Texas M. D. Anderson Cancer Center, Houston, TX
| | - Xinghua Lu
- 2University of Pittsburgh, Pittsburgh, PA
| | | | | | - Bo Hu
- 1Northwestern Univ., Chicago, IL
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Abstract
Palliative care patients with incurable advanced disease suffering from complex symptoms can receive specialized outpatient palliative care in addition to the existing ambulatory care system. Qualified physicians and nurses care for patients and their dependents in cooperation with other professionals. In addition to a 24/7 on-call service for emergencies or acute crises, patients and their dependents are offered regular visits.
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Affiliation(s)
- M J P Geist
- Überregionales Zentrum für Schmerztherapie und Palliativmedizin, Klinik für Anästhesiologie, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 131, 69120, Heidelberg, Deutschland.
| | - H J Bardenheuer
- Überregionales Zentrum für Schmerztherapie und Palliativmedizin, Klinik für Anästhesiologie, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 131, 69120, Heidelberg, Deutschland
| | - M A Weigand
- Überregionales Zentrum für Schmerztherapie und Palliativmedizin, Klinik für Anästhesiologie, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 131, 69120, Heidelberg, Deutschland
| | - S Frankenhauser
- Überregionales Zentrum für Schmerztherapie und Palliativmedizin, Klinik für Anästhesiologie, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 131, 69120, Heidelberg, Deutschland
| | - J Kessler
- Überregionales Zentrum für Schmerztherapie und Palliativmedizin, Klinik für Anästhesiologie, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 131, 69120, Heidelberg, Deutschland
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Fatemi N, Lee A, Kessler J, Park J. Evaluating the safety of radioembolization with yttrium 90 microspheres in patients with prior biliary intervention. J Vasc Interv Radiol 2017. [DOI: 10.1016/j.jvir.2016.12.1133] [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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Pangeni R, Alvarez A, Huang T, Zhang W, Zhang Z, Sastry N, Lu S, Kessler J, Brenann C, Sulman E, Lu X, Nakano I, Hu B, Cheng SY. GENT-14. GENOME WIDE METHYLOMIC AND TRANSCRIPTOMIC ANALYSES IDENTIFY EPIGENETIC SIGNATURES UNIQUELY DYSREGULATED IN GBM SUBTYPES. Neuro Oncol 2016. [DOI: 10.1093/neuonc/now212.320] [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: 11/14/2022] Open
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Wirth K, Held A, Kalbe E, Kessler J, Saliger J, Karbe H, Fink G, Weiss P. Das revidierte Kölner Apraxie-Screening (KAS-R) als diagnostisches Verfahren für Patienten mit rechtshemisphärischem Schlaganfall. Fortschr Neurol Psychiatr 2016; 84:633-639. [DOI: 10.1055/s-0042-115843] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | | | - E. Kalbe
- Medizinische Psychologie/Neuropsychologie & Gender Studies, Center für Neuropsychologische Diagnostik und Intervention (CeNDI), Uniklinik Köln
| | - J. Kessler
- Klinik und Poliklinik für Neurologie, Uniklinik Köln
| | - J. Saliger
- Neurologisches Rehabilitationszentrum Godeshöhe, Bonn
| | - H. Karbe
- Neurologisches Rehabilitationszentrum Godeshöhe, Bonn
| | - G. Fink
- Klinik und Poliklinik für Neurologie, Uniklinik Köln
| | - P. Weiss
- Klinik und Poliklinik für Neurologie, Uniklinik Köln
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Grubish L, Kessler J, McGrane K, Bothwell J. 296 Implementation of Tactical Breathing During Simulated Stressful Situations and Effects on Clinical Performance. Ann Emerg Med 2016. [DOI: 10.1016/j.annemergmed.2016.08.311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kessler J, Lee A, Frankel P, Park J, Lin J. Outcomes of salvage percutaneous biliary drainage for malignant obstruction after failure of endoscopic stenting. J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.454] [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: 10/22/2022] Open
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27
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Gasser AI, Calabrese P, Kalbe E, Kessler J, Rossier P. Cognitive screening in Parkinson's disease: Comparison of the Parkinson Neuropsychometric Dementia Assessment (PANDA) with 3 other short scales. Rev Neurol (Paris) 2016; 172:138-45. [DOI: 10.1016/j.neurol.2015.08.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2015] [Revised: 07/30/2015] [Accepted: 08/24/2015] [Indexed: 10/22/2022]
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Bär M, Barreau N, Couzinié-Devy F, Weinhardt L, Wilks RG, Kessler J, Heske C. Impact of Annealing-Induced Intermixing on the Electronic Level Alignment at the In2S3/Cu(In,Ga)Se2 Thin-Film Solar Cell Interface. ACS Appl Mater Interfaces 2016; 8:2120-2124. [PMID: 26716913 DOI: 10.1021/acsami.5b10614] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The interface between a nominal In2S3 buffer and a Cu(In,Ga)Se2 (CIGSe) thin-film solar cell absorber was investigated by direct and inverse photoemission to determine the interfacial electronic structure. On the basis of a previously reported heavy intermixing at the interface (S diffuses into the absorber; Cu diffuses into the buffer; and Na diffuses through it), we determine here the band alignment at the interface. The results suggest that the pronounced intermixing at the In2S3/CIGSe interface leads to a favorable electronic band alignment, necessary for high-efficiency solar cell devices.
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Affiliation(s)
- Marcus Bär
- Renewable Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1, 14109 Berlin, Germany
- Institut für Physik und Chemie, Brandenburgische Technische Universität Cottbus-Senftenberg , Platz der Deutschen Einheit 1, 03046 Cottbus, Germany
- Department of Chemistry and Biochemistry, University of Nevada, Las Vegas (UNLV) , 4505 Maryland Parkway, Las Vegas, Nevada 89154-4003, United States
| | - Nicolas Barreau
- Institut des Matériaux Jean Rouxel (IMN)-UMR 6502, Université de Nantes, Centre National de la Recherche Scientifique (CNRS) , 2 rue de la Houssinière, BP 32229, 44322 Nantes Cedex 3, France
| | - François Couzinié-Devy
- Institut des Matériaux Jean Rouxel (IMN)-UMR 6502, Université de Nantes, Centre National de la Recherche Scientifique (CNRS) , 2 rue de la Houssinière, BP 32229, 44322 Nantes Cedex 3, France
| | - Lothar Weinhardt
- Department of Chemistry and Biochemistry, University of Nevada, Las Vegas (UNLV) , 4505 Maryland Parkway, Las Vegas, Nevada 89154-4003, United States
- Institute for Photon Science and Synchrotron Radiation, Karlsruhe Institute of Technology , Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- ANKA Synchrotron Radiation Facility, Karlsruhe Institute of Technology , 76344 Eggenstein-Leopoldshafen, Germany
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology , Engesserstraße 18/20, 76128 Karlsruhe, Germany
| | - Regan G Wilks
- Renewable Energy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , Hahn-Meitner-Platz 1, 14109 Berlin, Germany
| | - John Kessler
- Institut des Matériaux Jean Rouxel (IMN)-UMR 6502, Université de Nantes, Centre National de la Recherche Scientifique (CNRS) , 2 rue de la Houssinière, BP 32229, 44322 Nantes Cedex 3, France
| | - Clemens Heske
- Department of Chemistry and Biochemistry, University of Nevada, Las Vegas (UNLV) , 4505 Maryland Parkway, Las Vegas, Nevada 89154-4003, United States
- Institute for Photon Science and Synchrotron Radiation, Karlsruhe Institute of Technology , Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- ANKA Synchrotron Radiation Facility, Karlsruhe Institute of Technology , 76344 Eggenstein-Leopoldshafen, Germany
- Institute for Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology , Engesserstraße 18/20, 76128 Karlsruhe, Germany
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Shrimpton A, Kessler J, Shaffer L, Stack C, Jalali A, Little R, Goldstein J, Angle B, Chary A, Coppinger J, Mathison D, Khan S, Poznanski A, Dobyns W, Craig D, Hoo J, Sarco D, Bassuk A. Variability of epilepsy, autism, brachydactyly, and other clinical features in familial and sporadic 2q37.3 deletion. J Pediatr Neurol 2015. [DOI: 10.3233/jpn-2009-0312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Antony Shrimpton
- Department of Pathology, Upsate Medical University, Syracuse, NY, USA
| | - John Kessler
- Department of Neurology, Northwestern University, Chicago, IL, USA
| | - Lisa Shaffer
- Signature Genomics Laboratory LLC, Spokane, Washington, DC, USA
| | - Cindy Stack
- Department of Pediatrics, Northwestern University, Chicago, IL, USA
| | - Ali Jalali
- Department of Neurology, Northwestern University, Chicago, IL, USA
| | - Robert Little
- Department of Pediatrics, Northwestern University, Chicago, IL, USA
| | - Joshua Goldstein
- Department of Pediatrics, Northwestern University, Chicago, IL, USA
| | - Brad Angle
- Department of Pediatrics, Northwestern University, Chicago, IL, USA
| | - Ajit Chary
- Department of Pediatrics, Northwestern University, Chicago, IL, USA
| | | | - David Mathison
- Department of Pediatrics, Children's National Medical Center, Washington, DC, USA
| | - Sophia Khan
- Department of Pediatrics, Northwestern University, Chicago, IL, USA
| | - Andrew Poznanski
- Department of Medical Imaging, Children's Memorial Hospital, Northwestern University, Chicago, IL, USA
| | - William Dobyns
- Department of Genetics, University of Chicago, Chicago, IL, USA
| | - David Craig
- The Translational Genomics Research Institute, Phoenix, AZ, USA
| | - Joe Hoo
- Department of Genetics, University of Toledo, Toledo, OH, USA
| | - Dean Sarco
- Department of Pediatrics, Harvard University, Boston, MA, USA
| | - Alexander Bassuk
- Department of Pediatrics, Graduate Program in Genetics, Neuroscience, and Molecular and Cellular Biology, University of Iowa, Iowa City, IA, USA
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Kessler J, Marhofer P, Hopkins P, Hollmann M. Peripheral regional anaesthesia and outcome: lessons learned from the last 10 years. Br J Anaesth 2015; 114:728-45. [DOI: 10.1093/bja/aeu559] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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31
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Westby Eger SH, Kessler J, Kiserud T, Markestad T, Sommerfelt K. Foetal Doppler abnormality is associated with increased risk of sepsis and necrotising enterocolitis in preterm infants. Acta Paediatr 2015; 104:368-76. [PMID: 25492262 DOI: 10.1111/apa.12893] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 10/07/2014] [Accepted: 12/04/2014] [Indexed: 11/30/2022]
Abstract
AIM Fetoplacental Doppler abnormalities have been associated with increased neonatal mortality and morbidity. This study evaluated the associations between prenatal Doppler assessments and neonatal mortality and morbidity in premature infants born small for gestational age or after pre-eclampsia. METHODS This was a population-based study of infants born alive at 22(0) -33(6) weeks of gestation, a birthweight <10th percentile for gestational age and/or maternal pre-eclampsia. Doppler assessments of the umbilical artery, middle cerebral artery and ductus venosus were evaluated in 127, 125 and 95 cases, respectively. Circulatory compromise was defined as absent or reversed end-diastolic velocity in the umbilical artery (AREDF), middle cerebral artery pulsatility index <2.5 percentile for gestational age and ductus venosus pulsatility index for veins >97.5 percentile. RESULTS AREDF was present in 28% of the infants. This was associated with increased frequencies of neonatal sepsis and necrotising enterocolitis after adjusting for gestational age. Abnormal ductus venosus pulsatility index for veins was associated with increased risk of neonatal sepsis, but only in combination with AREDF. These associations were only present when gestational age was <28 weeks. CONCLUSION AREDF was associated with increased neonatal morbidity in premature infants born small for gestational age or after pre-eclampsia.
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Affiliation(s)
- SH Westby Eger
- Department of Clinical Science; University of Bergen; Bergen Norway
- Department of Pediatrics; Haukeland University Hospital; Bergen Norway
| | - J Kessler
- Department of Clinical Science; University of Bergen; Bergen Norway
- Department of Obstetrics and Gynecology; Haukeland University Hospital; Bergen Norway
| | - T Kiserud
- Department of Clinical Science; University of Bergen; Bergen Norway
- Department of Obstetrics and Gynecology; Haukeland University Hospital; Bergen Norway
| | - T Markestad
- Department of Clinical Science; University of Bergen; Bergen Norway
- Department of Pediatrics; Haukeland University Hospital; Bergen Norway
| | - K Sommerfelt
- Department of Clinical Science; University of Bergen; Bergen Norway
- Department of Pediatrics; Haukeland University Hospital; Bergen Norway
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Kessler J, Merchant S, Singh G, Park J. Margin extension with irreversible electroporation: a novel, adjunctive approach to treating liver malignancies. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.481] [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: 10/24/2022] Open
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33
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Kessler J, Kim J, Raz D, Park J. Treatment of traumatic chylous pleural effusion using ethylene vinyl alcohol (EVOH) copolymer. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.535] [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: 10/24/2022] Open
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Petrelli A, Kaesberg S, Barbe MT, Timmermann L, Rosen JB, Fink GR, Kessler J, Kalbe E. Cognitive training in Parkinson's disease reduces cognitive decline in the long term. Eur J Neurol 2014; 22:640-7. [DOI: 10.1111/ene.12621] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Accepted: 10/07/2014] [Indexed: 12/30/2022]
Affiliation(s)
- A. Petrelli
- Institute of Gerontology, Psychological Gerontology and Center for Neuropsychological Diagnostics and Intervention CeNDI; University of Vechta; Vechta Germany
- Department of Neurology; University Hospital Cologne; Cologne Germany
| | - S. Kaesberg
- Institute of Gerontology, Psychological Gerontology and Center for Neuropsychological Diagnostics and Intervention CeNDI; University of Vechta; Vechta Germany
- Department of Neurology; University Hospital Cologne; Cologne Germany
- Cognitive Neuroscience; Institute of Neuroscience and Medicine INM-3; Research Center Jülich; Jülich Germany
| | - M. T. Barbe
- Department of Neurology; University Hospital Cologne; Cologne Germany
- Cognitive Neuroscience; Institute of Neuroscience and Medicine INM-3; Research Center Jülich; Jülich Germany
| | - L. Timmermann
- Department of Neurology; University Hospital Cologne; Cologne Germany
| | - J. B. Rosen
- Institute of Gerontology, Psychological Gerontology and Center for Neuropsychological Diagnostics and Intervention CeNDI; University of Vechta; Vechta Germany
| | - G. R. Fink
- Department of Neurology; University Hospital Cologne; Cologne Germany
- Cognitive Neuroscience; Institute of Neuroscience and Medicine INM-3; Research Center Jülich; Jülich Germany
| | - J. Kessler
- Department of Neurology; University Hospital Cologne; Cologne Germany
| | - E. Kalbe
- Institute of Gerontology, Psychological Gerontology and Center for Neuropsychological Diagnostics and Intervention CeNDI; University of Vechta; Vechta Germany
- Department of Neurology; University Hospital Cologne; Cologne Germany
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35
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Kessler J, Fengler S, Kaesberg S, Müller K, Calabrese P, Ellwein T, Kalbe E. [DemTect 40- and DemTect 80+: New scoring routines for these age groups]. Fortschr Neurol Psychiatr 2014; 82:640-5. [PMID: 25383931 DOI: 10.1055/s-0034-1385278] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The DemTect, a frequently used cognitive screening tool for the German-speaking population, has been proven to be age-, but not education-dependent. To date, scoring routines for persons under and over 60 years of age have been available. In order to describe the age-effect more specifically, the DemTect was administered to persons under 40 (n = 105; median 33 years [18 - 39]) and over 80 years of age [n = 68; median 83 years [80 - 93}). After transformation of the raw scores, which are based on the mean and standard deviation of the respective reference group, an adequate attribution of scores could be achieved and no differences between the groups can be observed in the total score or the subtest scores. The median of the transformed total score was 16 [5 – 18] for the younger and 15 [5 – 18] for the older age group. The new scoring routines supplement the scoring procedures of the DemTect for these age groups.
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Affiliation(s)
- J Kessler
- AG Neuropsychologie, Klinik und Poliklinik für Neurologie, Uniklinik Köln
| | - S Fengler
- AG Neuropsychologie, Klinik und Poliklinik für Neurologie, Uniklinik Köln
| | - S Kaesberg
- AG Neuropsychologie, Klinik und Poliklinik für Neurologie, Uniklinik Köln
| | - K Müller
- AG Neuropsychologie, Klinik und Poliklinik für Neurologie, Uniklinik Köln
| | - P Calabrese
- Neurocenter of Southern Switzerland, Institut für Psychologie & Department of Neuropsychology and Behavioral Psychology, Universität Basel
| | - T Ellwein
- Institut für Psychologie, Universität Salzburg
| | - E Kalbe
- AG Neuropsychologie, Klinik und Poliklinik für Neurologie, Uniklinik Köln
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36
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Wu M, Fernandez N, Celebre A, Srikanth M, Kessler J, Karamchandani J, Das S. SC-35 * BMP SIGNALING REGULATES A QUIESCENT CANCER STEM CELL PHENOTYPE RESPONSIBLE FOR TREATMENT RESISTANCE IN GLIOBLASTOMA. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou275.34] [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: 11/12/2022] Open
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37
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Kessler J, Moster D, Albrechtsen S. Intrapartum monitoring with cardiotocography and ST-waveform analysis in breech presentation: an observational study. BJOG 2014; 122:528-35. [DOI: 10.1111/1471-0528.12989] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/29/2014] [Indexed: 11/28/2022]
Affiliation(s)
- J Kessler
- Department of Obstetrics and Gynaecology; Haukeland University Hospital; Bergen Norway
- Department of Clinical Science; Research Group for Pregnancy, Fetal Development and Birth; University of Bergen; Bergen Norway
| | - D Moster
- Department of Health Registries; Norwegian Institute of Public Health; Bergen Norway
- Department of Paediatrics; Haukeland University Hospital; Bergen Norway
- Department of Global Public Health and Primary Care; University of Bergen; Bergen Norway
| | - S Albrechtsen
- Department of Obstetrics and Gynaecology; Haukeland University Hospital; Bergen Norway
- Department of Clinical Science; Research Group for Pregnancy, Fetal Development and Birth; University of Bergen; Bergen Norway
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Eitel W, Jost K, Kessler J. Notizen: Range of Validity of Static Potential Approximation in Low-Energy Electron Scattering Checked by Cross Section Measurements of Hg between 25 and 150 eV. ACTA ACUST UNITED AC 2014. [DOI: 10.1515/zna-1968-1240] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- W. Eitel
- Physikalisches Institut, Universität Karlsruhe
| | - K. Jost
- Physikalisches Institut, Universität Karlsruhe
| | - J. Kessler
- Physikalisches Institut, Universität Karlsruhe
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Ubben S, Weiss-Blankenhorn P, Kaesberg S, Kalbe E, Kessler J, Liebig T, Fink G. P366: Where language meets action: a combined behaviour and lesion analysis of aphasia and apraxia due to left-hemisphere stroke. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50475-0] [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: 10/25/2022]
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40
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Delucchi MA, Yang C, Burke AF, Ogden JM, Kurani K, Kessler J, Sperling D. An assessment of electric vehicles: technology, infrastructure requirements, greenhouse-gas emissions, petroleum use, material use, lifetime cost, consumer acceptance and policy initiatives. Philos Trans A Math Phys Eng Sci 2014; 372:20120325. [PMID: 24298079 DOI: 10.1098/rsta.2012.0325] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Concerns about climate change, urban air pollution and dependence on unstable and expensive supplies of foreign oil have led policy-makers and researchers to investigate alternatives to conventional petroleum-fuelled internal-combustion-engine vehicles in transportation. Because vehicles that get some or all of their power from an electric drivetrain can have low or even zero emissions of greenhouse gases (GHGs) and urban air pollutants, and can consume little or no petroleum, there is considerable interest in developing and evaluating advanced electric vehicles (EVs), including pure battery-electric vehicles, plug-in hybrid electric vehicles and hydrogen fuel-cell electric vehicles. To help researchers and policy-makers assess the potential of EVs to mitigate climate change and reduce petroleum use, this paper discusses the technology of EVs, the infrastructure needed for their development, impacts on emissions of GHGs, petroleum use, materials use, lifetime costs, consumer acceptance and policy considerations.
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Affiliation(s)
- M A Delucchi
- Institute of Transportation Studies, University of California, , Davis, 1605 Tilia Street, Davis, CA 95616, USA
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41
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Chen Y, Lehmann KK, Kessler J, Sherwood Lollar B, Lacrampe Couloume G, Onstott TC. Measurement of the 13C/12C of atmospheric CH4 using near-infrared (NIR) cavity ring-down spectroscopy. Anal Chem 2013; 85:11250-7. [PMID: 24160448 DOI: 10.1021/ac401605s] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A near-infrared (NIR) continuous-wave-cavity ring-down spectrometry (CW-CRDS) device was developed with the goal of measuring seasonal changes in the isotopic composition of atmospheric CH4 on Earth and eventually on Mars. The system consisted of three distributed feedback laser diodes (DFB-LDs), two of which were tuned to the absorption line peaks of (12)CH4 and (13)CH4 at 6046.954 cm(-1) and 6049.121 cm(-1), respectively, and a third that measured the baseline at 6050.766 cm(-1). The multiple laser design improved the long-term stability of the system and increased the data acquisition rate. The acquisition frequency was further increased by utilizing a semiconductor optical amplifier (SOA) to initiate cavity ring-down events. The high repetition rate combined with the superhigh reflectivity mirrors yielded precise isotopic measurements in this NIR region, even though the line strengths of CH4 in this region are 200 times weaker than those of the strongest mid-IR absorption bands. The current system has a detection limit of 1.9 × 10(-12) cm(-1), corresponding to 10 pptv of CH4 at 100 Torr. For ambient air samples that contained 1.9 ppmv CH4, the δ(13)C of the CH4 was determined to be -48.7 ± 1.7‰ (1σ).
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Affiliation(s)
- Y Chen
- Department of Geosciences, Princeton University , Princeton, New Jersey 08544, United States
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Agarwal M, Nitta R, Dovat S, Li G, Arita H, Narita Y, Fukushima S, Tateishi K, Matsushita Y, Yoshida A, Miyakita Y, Ohno M, Collins VP, Kawahara N, Shibui S, Ichimura K, Kahn SA, Gholamin S, Junier MP, Chneiweiss H, Weissman I, Mitra S, Cheshier S, Avril T, Hamlat A, Le Reste PJ, Mosser J, Quillien V, Carrato C, Munoz-Marmol A, Serrano L, Pijuan L, Hostalot C, Villa SL, Ariza A, Etxaniz O, Balana C, Benveniste ET, Zheng Y, McFarland B, Drygin D, Bellis S, Bredel M, Lotsch D, Engelmaier C, Allerstorfer S, Grusch M, Pichler J, Weis S, Hainfellner J, Marosi C, Spiegl-Kreinecker S, Berger W, Bronisz A, Nowicki MO, Wang Y, Ansari K, Chiocca EA, Godlewski J, Brown K, Kwatra M, Brown K, Kwatra M, Bui T, Nitta R, Li G, Zhu S, Kozono D, Li J, Kushwaha D, Carter B, Chen C, Schulte J, Srikanth M, Das S, Zhang J, Lathia J, Yin L, Rich J, Olson E, Kessler J, Chenn A, Cherry A, Haas B, Lin YH, Ong SE, Stella N, Cifarelli CP, Griffin RJ, Cong D, Zhu W, Shi Y, Clark P, Kuo J, Hu S, Sun D, Bookland M, Darbinian N, Dey A, Robitaille M, Remke M, Faury D, Maier C, Malhotra A, Jabado N, Taylor M, Angers S, Kenney A, Ren X, Zhou H, Schur M, Baweja A, Singh M, Erdreich-Epstein A, Fu J, Koul D, Yao J, Saito N, Zheng S, Verhaak R, Lu Z, Yung WKA, Gomez G, Volinia S, Croce C, Brennan C, Cavenee W, Furnari F, Lopez SG, Qu D, Petritsch C, Gonzalez-Huarriz M, Aldave G, Ravi D, Rubio A, Diez-Valle R, Marigil M, Jauregi P, Vera B, Rocha AADL, Tejada-Solis S, Alonso MM, Gopal U, Isaacs J, Gruber-Olipitz M, Dabral S, Ramkissoon S, Kung A, Pak E, Chung J, Theisen M, Sun Y, Monrose V, Franchetti Y, Sun Y, Shulman D, Redjal N, Tabak B, Beroukhim R, Zhao J, Buonamici S, Ligon K, Kelleher J, Segal R, Haas B, Canton D, Diaz P, Scott J, Stella N, Hara K, Kageji T, Mizobuchi Y, Kitazato K, Okazaki T, Fujihara T, Nakajima K, Mure H, Kuwayama K, Hara T, Nagahiro S, Hill L, Botfield H, Hossain-Ibrahim K, Logan A, Cruickshank G, Liu Y, Gilbert M, Kyprianou N, Rangnekar V, Horbinski C, Hu Y, Vo C, Li Z, Ke C, Ru N, Hess KR, Linskey ME, Zhou YAH, Hu F, Vinnakota K, Wolf S, Kettenmann H, Jackson PJ, Larson JD, Beckmann DA, Moriarity BS, Largaespada DA, Jalali S, Agnihotri S, Singh S, Burrell K, Croul S, Zadeh G, Kang SH, Yu MO, Song NH, Park KJ, Chi SG, Chung YG, Kim SK, Kim JW, Kim JY, Kim JE, Choi SH, Kim TM, Lee SH, Kim SK, Park SH, Kim IH, Park CK, Jung HW, Koldobskiy M, Ahmed I, Ho G, Snowman A, Raabe E, Eberhart C, Snyder S, Agnihotri S, Gugel I, Remke M, Bornemann A, Pantazis G, Mack S, Shih D, Sabha N, Taylor M, Tatagiba M, Zadeh G, Krischek B, Schulte A, Liffers K, Kathagen A, Riethdorf S, Westphal M, Lamszus K, Lee JS, Xiao J, Patel P, Schade J, Wang J, Deneen B, Erdreich-Epstein A, Song HR, Leiss L, Gjerde C, Saed H, Rahman A, Lellahi M, Enger PO, Leung R, Gil O, Lei L, Canoll P, Sun S, Lee D, Ho ASW, Pu JKS, Zhang XQ, Lee NP, Dat PJR, Leung GKK, Loetsch D, Steiner E, Holzmann K, Spiegl-Kreinecker S, Pirker C, Hlavaty J, Petznek H, Hegedus B, Garay T, Mohr T, Sommergruber W, Grusch M, Berger W, Lukiw WJ, Jones BM, Zhao Y, Bhattacharjee S, Culicchia F, Magnus N, Garnier D, Meehan B, McGraw S, Hashemi M, Lee TH, Milsom C, Gerges N, Jabado N, Trasler J, Pawlinski R, Mackman N, Rak J, Maherally Z, Thorne A, An Q, Barbu E, Fillmore H, Pilkington G, Maherally Z, Tan SL, Tan S, An Q, Fillmore H, Pilkington G, Malhotra A, Choi S, Potts C, Ford DA, Nahle Z, Kenney AM, Matlaf L, Khan S, Zider A, Singer E, Cobbs C, Soroceanu L, McFarland BC, Hong SW, Rajbhandari R, Twitty GB, Gray GK, Yu H, Benveniste EN, Nozell SE, Minata M, Kim S, Mao P, Kaushal J, Nakano I, Mizowaki T, Sasayama T, Tanaka K, Mizukawa K, Nishihara M, Nakamizo S, Tanaka H, Kohta M, Hosoda K, Kohmura E, Moeckel S, Meyer K, Leukel P, Bogdahn U, Riehmenschneider MJ, Bosserhoff AK, Spang R, Hau P, Mukasa A, Watanabe A, Ogiwara H, Saito N, Aburatani H, Mukherjee J, Obha S, See W, Pieper R, Nakajima K, Hara K, Kageji T, Mizobuchi Y, Kitazato K, Fujihara T, Otsuka R, Kung D, Nagahiro S, Rajbhandari R, Sinha T, Meares G, Benveniste EN, Nozell S, Ott M, Litzenburger U, Rauschenbach K, Bunse L, Pusch S, Ochs K, Sahm F, Opitz C, von Deimling A, Wick W, Platten M, Peruzzi P, Chiocca EA, Godlewski J, Read R, Fenton T, Gomez G, Wykosky J, Vandenberg S, Babic I, Iwanami A, Yang H, Cavenee W, Mischel P, Furnari F, Thomas J, Ronellenfitsch MW, Thiepold AL, Harter PN, Mittelbronn M, Steinbach JP, Rybakova Y, Kalen A, Sarsour E, Goswami P, Silber J, Harinath G, Aldaz B, Fabius AWM, Turcan S, Chan TA, Huse JT, Sonabend AM, Bansal M, Guarnieri P, Lei L, Soderquist C, Leung R, Yun J, Kennedy B, Sisti J, Bruce S, Bruce R, Shakya R, Ludwig T, Rosenfeld S, Sims PA, Bruce JN, Califano A, Canoll P, Stockhausen MT, Kristoffersen K, Olsen LS, Poulsen HS, Stringer B, Day B, Barry G, Piper M, Jamieson P, Ensbey K, Bruce Z, Richards L, Boyd A, Sufit A, Burleson T, Le JP, Keating AK, Sundstrom T, Varughese JK, Harter P, Prestegarden L, Petersen K, Azuaje F, Tepper C, Ingham E, Even L, Johnson S, Skaftnesmo KO, Lund-Johansen M, Bjerkvig R, Ferrara K, Thorsen F, Takeshima H, Yamashita S, Yokogami K, Mizuguchi S, Nakamura H, Kuratsu J, Fukushima T, Morishita K, Tanaka H, Sasayama T, Tanaka K, Nakamizo S, Mizukawa K, Kohmura E, Tang Y, Vaka D, Chen S, Ponnuswami A, Cho YJ, Monje M, Tateishi K, Narita Y, Nakamura T, Cahill D, Kawahara N, Ichimura K, Tiemann K, Hedman H, Niclou SP, Timmer M, Tjiong R, Rohn G, Goldbrunner R, Timmer M, Tjiong R, Stavrinou P, Rohn G, Perrech M, Goldbrunner R, Tokita M, Mikheev S, Sellers D, Mikheev A, Kosai Y, Rostomily R, Tritschler I, Seystahl K, Schroeder JJ, Weller M, Wade A, Robinson AE, Phillips JJ, Gong Y, Ma Y, Cheng Z, Thompson R, Wang J, Fan QW, Cheng C, Gustafson W, Charron E, Zipper P, Wong R, Chen J, Lau J, Knobbe-Thosen C, Weller M, Jura N, Reifenberger G, Shokat K, Weiss W, Wu S, Fu J, Zheng S, Koul D, Yung WKA, Wykosky J, Hu J, Taylor T, Villa GR, Gomez G, Mischel PS, Gonias SL, Cavenee W, Furnari F, Yamashita D, Kondo T, Takahashi H, Inoue A, Kohno S, Harada H, Ohue S, Ohnishi T, Li P, Ng J, Yuelling L, Du F, Curran T, Yang ZJ, Zhu D, Castellino RC, Van Meir EG, Zhu W, Begum G, Wang Q, Clark P, Yang SS, Lin SH, Kahle K, Kuo J, Sun D. CELL BIOLOGY AND SIGNALING. Neuro Oncol 2013. [DOI: 10.1093/neuonc/not174] [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: 11/14/2022] Open
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Hartmann A, Rubi-Fessen I, Heiß WD, Kracht L, Kessler J, Rommel T. P 126. Righthemispheric inhibitory rTMS in patients with letfsided brain infarcts: Effect on cerebral blood flow using PET and speech performance. Clin Neurophysiol 2013. [DOI: 10.1016/j.clinph.2013.04.204] [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: 11/26/2022]
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Kessler J, Medado P, Cloyd J, Wilburn J, Engle T, O'Neil B. 158 Utility Cranial Nerve Testing Obtained in the Emergency Department as Early Predictors of Neurologic Outcome Post Cardiac Arrest. Ann Emerg Med 2012. [DOI: 10.1016/j.annemergmed.2012.06.135] [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: 11/16/2022]
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Ubben SD, Weiss-Blankenhorn PH, Kaesberg S, Kalbe E, Kessler J, Fink GR. Lesion analyses confirm the importance of left-hemispheric fronto-parieto-networks for praxis and language functions in acute stroke. KLIN NEUROPHYSIOL 2012. [DOI: 10.1055/s-0032-1301582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Nothdurfter C, Tanasic S, Di Benedetto B, Uhr M, Kessler J, Wagner EM, Gilling K, Parsons C, Rein T, Holsboer F, Rupprecht R, Rammes G. Impact of lipid raft integrity on GABAA receptor function and its modulation by benzodiazepines. Pharmacopsychiatry 2011. [DOI: 10.1055/s-0031-1292523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Hou Q, Barr T, Gee L, Vickers J, Wymer J, Borsani E, Rodella L, Getsios S, Burdo T, Eisenberg E, Guha U, Lavker R, Kessler J, Chittur S, Fiorino D, Rice F, Albrecht P. Keratinocyte expression of calcitonin gene-related peptide β: implications for neuropathic and inflammatory pain mechanisms. Pain 2011; 152:2036-2051. [PMID: 21641113 DOI: 10.1016/j.pain.2011.04.033] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Revised: 04/03/2011] [Accepted: 04/25/2011] [Indexed: 12/12/2022]
Abstract
Calcitonin gene-related peptide (CGRP) is a vasodilatory peptide that has been detected at high levels in the skin, blood, and cerebrospinal fluid (CSF) under a variety of inflammatory and chronic pain conditions, presumably derived from peptidergic C and Aδ innervation. Herein, CGRP immunolabeling (IL) was detected in epidermal keratinocytes at levels that were especially high and widespread in the skin of humans from locations afflicted with postherpetic neuralgia (PHN) and complex region pain syndrome type 1 (CRPS), of monkeys infected with simian immunodeficiency virus, and of rats subjected to L5/L6 spinal nerve ligation, sciatic nerve chronic constriction, and subcutaneous injection of complete Freund's adjuvant. Increased CGRP-IL was also detected in epidermal keratinocytes of transgenic mice with keratin-14 promoter driven overexpression of noggin, an antagonist to BMP-4 signaling. Transcriptome microarray, quantitative Polymerase Chain Reaction (qPCR), and Western blot analyses using laser-captured mouse epidermis from transgenics, monolayer cultures of human and mouse keratinocytes, and multilayer human keratinocyte organotypic cultures, revealed that keratinocytes express predominantly the beta isoform of CGRP. Cutaneous peptidergic innervation has been shown to express predominantly the alpha isoform of CGRP. Keratinocytes also express the cognate CGRP receptor components, Calcitonin receptor-like receptor (CRLR), Receptor activity-modifying protein 1 (RAMP1), CGRP-receptor component protein (RCP) consistent with known observations that CGRP promotes several functional changes in keratinocytes, including proliferation and cytokine production. Our results indicate that keratinocyte-derived CGRPβ may modulate epidermal homeostasis through autocrine/paracrine signaling and may contribute to chronic pain under pathological conditions.
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Affiliation(s)
- Quanzhi Hou
- Center for Neuropharmacology and Neuroscience, Albany Medical College, Albany, NY, USA Department of Neurology, Albany Medical College, Albany, NY, USA Division of Human Anatomy, Department of Biomedical Sciences and Biotechnologies, University of Brescia, Brescia, Italy Department of Dermatology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA Department of Biology, Boston College, Chestnut Hill, MA, USA Rambam Medical Center, Faculty of Medicine, Israel Institute of Technology, Haifa, Israel Medical Oncology Branch, National Cancer Institute, Bethesda, MD, USA Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA Center for Functional Genomics, SUNY Albany, Rensselaer, NY, USA In Vivo Pharmacology, Vertex Pharmaceuticals, San Diego, CA, USA Integrated Tissue Dynamics, LLC, Rensselaer, NY, USA
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Bodegård M, Kessler J, Lundberg O, Schöldström J, Stolt L. Growth of Co-evaporated Cu(In,Ga)Se2 – The Influence of Rate Profiles on Film Morphology. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-668-h2.2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTThe influence of the evaporation rate profiles on the microstructure of co-evaporated Cu(In,Ga)Se2, (CIGS), is discussed. The influence of Cu excess in the beginning of the CIGS growth has been investigated. In addition, the Ga rate has been varied in order to create bandgap grading in the CIGS film. By studying CIS and CGS films separately and as CGS/CIS stacks results on interdiffusion of In and Ga interdiffusion have been obtained. The resulting thin films are investigated mainly using Scanning Electron Microscopy (SEM) and X-ray Diffraction (XRD). Solar cell devices were prepared and IV measurements performed on samples with varying CIGS deposition parameters.
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Yang L, Bennett M, Chen L, Jansen K, Kessler J, Li Y, Newton J, Rajan K, Willing F, Arya R, Carlson D. Technological Development for Commercialization of Amorphous Silicon Based Multijunction Modules. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-420-839] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractSome of the significant steps in technological development for large-scale commercialization of amorphous silicon (a-Si:H) based multijunction photovoltaic modules are presented. These developments are establishing a high quality baseline process for manufacturing large-area ( ˜ 8 ft2) a-Si:H/a-SiGe:H tandem junction modules with improved stabilized conversion efficiency, throughput, yield, and reduced materials usage.
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Markowitsch HJ, Weber-Luxemburger G, Ewald K, Kessler J, Heiss WD. Patients with heart attacks are not valid models for medial temporal lobe amnesia. A neuropsychological and FDG-PET study with consequences for memory research. Eur J Neurol 2011; 4:178-84. [PMID: 24283911 DOI: 10.1111/j.1468-1331.1997.tb00324.x] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- H J Markowitsch
- Physiological Psychology, University of Bielefeld, Bielefeld, GermanyMax-Planck-Institute for Neurological Research, Cologne, GermanyNeurological University Clinic, Cologne, Germany
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