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Antal I, Szőke G, Szendrői M, Szalay K, Perlaky T, Kiss J, Skaliczki G. Functional outcome and quality of life following resection of the proximal humerus performed for musculoskeletal tumors and reconstruction done by four different methods. Musculoskelet Surg 2023; 107:351-359. [PMID: 36648636 PMCID: PMC10432350 DOI: 10.1007/s12306-022-00771-w] [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] [Received: 03/24/2022] [Accepted: 12/19/2022] [Indexed: 01/18/2023]
Abstract
INTRODUCTION The proximal humerus is a frequent site for both primary and secondary bone tumors. Several options are currently available to reconstruct the resected humerus, but there is no consensus regarding optimal reconstruction. The aim of this retrospective study was to compare the functional outcome, complications and patient compliance following four different types of reconstructive techniques. MATERIAL AND METHODS The authors performed 90 proximal humerus resections due to primary and secondary bone tumors over the past 21 years. Four different procedures were performed for reconstruction following the resection: fibula autograft transplantation, osteoarticular allograft implantation, modular tumor endoprosthesis (hemiarthroplasty) and reconstruction of the defect with a reverse shoulder prosthesis-allograft composite. A retrospective analysis of the complications and patient's physical status was performed. Functional outcome and life quality was evaluated by using the MSTS and SF-36 scores. RESULTS The best range of motion was observed following arthroplasty with a reverse shoulder prosthesis-homograft composite followed by a fibula autograft reconstruction. Revision surgery was required due to major complications most frequently in the osteoarticular allograft group, followed by the reverse shoulder prosthesis-allograft composite group, the autologous fibula transplantation group; the tumor endoprosthesis hemiarthroplasty group had superior results regarding revision surgery (40, 25, 24 and 14% respectively). MSTS was 84% on average for the reverse shoulder prosthesis-allograft composite group, 70% for the autologous fibula group, 67% for the anatomical hemiarthroplasty group and 64% for the osteoartricular allograft group. Using the SF-36 questionnaire for assessment no significant differences were found between the four groups regarding quality of life. DISCUSSION Based on the results of our study the best functional performance (range of motion and patient compliance) was achieved in the a reverse prosthesis-allograft combination group-in cases where the axillary nerve could be spared. The use of an osteoarticular allograft resulted in unsatisfying functional results and high complication rates, therefore we do not recommend it as a reconstructive method following resection of the proximal humerus due to either primary or metastatic bone tumors. Young patients who have good life expectancy but a small humerus or intramedullar cavity reconstruction by implantation of a fibula autograft is a good option. For patients with a poor prognosis (i.g. bone metastases) or in cases where the axillary nerve must be sacrificed, hemiarthroplasty using a tumor endoprosthesis was found to have acceptable results with a low complication rate. According to the MSTS and SF-36 functional scoring systems patients compliance was nearly identical following all four types of reconstruction techniques; the underlying cause may be the complexity of the shoulder girdle. However, we recommend the implantation of a reverse shoulder prosthesis-allograft whenever indication is appropriate, as it has been demonstrated to provide excellent functional outcomes, especially in young adults.
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Affiliation(s)
- I Antal
- Department of Orthopedics, Semmelweis University, Üllői út 26, Budapest, 1085, Hungary.
| | - G Szőke
- Department of Orthopedics, Semmelweis University, Üllői út 26, Budapest, 1085, Hungary
| | - M Szendrői
- Department of Orthopedics, Semmelweis University, Üllői út 26, Budapest, 1085, Hungary
| | - K Szalay
- Department of Orthopedics, Semmelweis University, Üllői út 26, Budapest, 1085, Hungary
| | - T Perlaky
- Department of Orthopedics, Semmelweis University, Üllői út 26, Budapest, 1085, Hungary
| | - J Kiss
- Department of Orthopedics, Semmelweis University, Üllői út 26, Budapest, 1085, Hungary
| | - G Skaliczki
- Department of Orthopedics, Semmelweis University, Üllői út 26, Budapest, 1085, Hungary
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Bhagya T, Elias L, Kiss J, Kónya Z, Manoj S, Shibli S. Interfacial charge separation of nickel phosphide anchored on anatase-hematite heterojunction for stimulating visible light driven hydrogen generation. International Journal of Hydrogen Energy 2022. [DOI: 10.1016/j.ijhydene.2022.05.148] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Sikorski V, Karjalainen P, Blokhina D, Oksaharju K, Khan J, Katayama S, Rajala H, Suihko S, Tuohinen S, Teittinen K, Nummi A, Nykänen A, Eskin A, Stark C, Biancari F, Kiss J, Simpanen J, Ropponen J, Lemström K, Savinainen K, Lalowski M, Kaarne M, Jormalainen M, Elomaa O, Koivisto P, Raivio P, Bäckström P, Dahlbacka S, Syrjälä S, Vainikka T, Vähäsilta T, Tuncbag N, Karelson M, Mervaala E, Juvonen T, Laine M, Laurikka J, Vento A, Kankuri E. Epitranscriptomics of Ischemic Heart Disease-The IHD-EPITRAN Study Design and Objectives. Int J Mol Sci 2021; 22:6630. [PMID: 34205699 PMCID: PMC8235045 DOI: 10.3390/ijms22126630] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/10/2021] [Accepted: 06/15/2021] [Indexed: 12/11/2022] Open
Abstract
Epitranscriptomic modifications in RNA can dramatically alter the way our genetic code is deciphered. Cells utilize these modifications not only to maintain physiological processes, but also to respond to extracellular cues and various stressors. Most often, adenosine residues in RNA are targeted, and result in modifications including methylation and deamination. Such modified residues as N-6-methyl-adenosine (m6A) and inosine, respectively, have been associated with cardiovascular diseases, and contribute to disease pathologies. The Ischemic Heart Disease Epitranscriptomics and Biomarkers (IHD-EPITRAN) study aims to provide a more comprehensive understanding to their nature and role in cardiovascular pathology. The study hypothesis is that pathological features of IHD are mirrored in the blood epitranscriptome. The IHD-EPITRAN study focuses on m6A and A-to-I modifications of RNA. Patients are recruited from four cohorts: (I) patients with IHD and myocardial infarction undergoing urgent revascularization; (II) patients with stable IHD undergoing coronary artery bypass grafting; (III) controls without coronary obstructions undergoing valve replacement due to aortic stenosis and (IV) controls with healthy coronaries verified by computed tomography. The abundance and distribution of m6A and A-to-I modifications in blood RNA are charted by quantitative and qualitative methods. Selected other modified nucleosides as well as IHD candidate protein and metabolic biomarkers are measured for reference. The results of the IHD-EPITRAN study can be expected to enable identification of epitranscriptomic IHD biomarker candidates and potential drug targets.
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Affiliation(s)
- Vilbert Sikorski
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland; (V.S.); (D.B.); (E.M.)
| | - Pasi Karjalainen
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Daria Blokhina
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland; (V.S.); (D.B.); (E.M.)
| | - Kati Oksaharju
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Jahangir Khan
- Tampere Heart Hospital, Tampere University Hospital, 33520 Tampere, Finland; (J.K.); (J.L.)
| | | | - Helena Rajala
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Satu Suihko
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Suvi Tuohinen
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Kari Teittinen
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Annu Nummi
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Antti Nykänen
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Arda Eskin
- Graduate School of Informatics, Department of Health Informatics, Middle East Technical University, 06800 Ankara, Turkey;
| | - Christoffer Stark
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Fausto Biancari
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
- Heart Center, Turku University Hospital and Department of Surgery, University of Turku, 20521 Turku, Finland
- Research Unit of Surgery, Anesthesiology and Critical Care, University of Oulu, 90014 Oulu, Finland
| | - Jan Kiss
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Jarmo Simpanen
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Jussi Ropponen
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Karl Lemström
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Kimmo Savinainen
- Clinical Biobank Tampere, Tampere University Hospital, 33520 Tampere, Finland;
| | - Maciej Lalowski
- Helsinki Institute of Life Science (HiLIFE), Meilahti Clinical Proteomics Core Facility, Department of Biochemistry and Developmental Biology, Faculty of Medicine, University of Helsinki, 00290 Helsinki, Finland;
- Institute of Bioorganic Chemistry, Polish Academy of Sciences, Department of Biomedical Proteomics, 61-704 Poznan, Poland
| | - Markku Kaarne
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Mikko Jormalainen
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Outi Elomaa
- Folkhälsan Research Center, 00250 Helsinki, Finland; (S.K.); (O.E.)
| | - Pertti Koivisto
- Chemistry Unit, Finnish Food Authority, 00790 Helsinki, Finland;
| | - Peter Raivio
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Pia Bäckström
- Helsinki Biobank, Hospital District of Helsinki and Uusimaa, 00029 Helsinki, Finland;
| | - Sebastian Dahlbacka
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Simo Syrjälä
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Tiina Vainikka
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Tommi Vähäsilta
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Nurcan Tuncbag
- Department of Chemical and Biological Engineering, College of Engineering, Koç University, 34450 Istanbul, Turkey;
- School of Medicine, Koç University, 34450 Istanbul, Turkey
| | - Mati Karelson
- Institute of Chemistry, University of Tartu, 50411 Tartu, Estonia;
| | - Eero Mervaala
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland; (V.S.); (D.B.); (E.M.)
| | - Tatu Juvonen
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
- Research Unit of Surgery, Anesthesiology and Critical Care, University of Oulu, 90014 Oulu, Finland
| | - Mika Laine
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Jari Laurikka
- Tampere Heart Hospital, Tampere University Hospital, 33520 Tampere, Finland; (J.K.); (J.L.)
| | - Antti Vento
- Heart and Lung Center, Helsinki University Hospital, 00029 Helsinki, Finland; (P.K.); (K.O.); (H.R.); (S.S.); (S.T.); (K.T.); (A.N.); (A.N.); (C.S.); (F.B.); (J.K.); (J.S.); (J.R.); (K.L.); (M.K.); (M.J.); (P.R.); (S.D.); (S.S.); (T.V.); (T.V.); (T.J.); (M.L.); (A.V.)
| | - Esko Kankuri
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland; (V.S.); (D.B.); (E.M.)
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Mansperger J, Kemp J, Kiss J, Morgan A, Knippen K, Hamady C, Ludy M. Relationship Between Depressive Symptoms and Other Health Markers in First-Semester College Students. J Acad Nutr Diet 2020. [DOI: 10.1016/j.jand.2020.06.244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kiss J, Stark C, Nykänen A, Lemström K. Outcome of patients receiving a continuous flow left ventricular assist device - a retrospective single center study. SCAND CARDIOVASC J 2020; 54:212-219. [PMID: 32292078 DOI: 10.1080/14017431.2020.1751264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Objectives. We present the outcome of the first 80 patients receiving a continuous flow left ventricular assist device at Helsinki University Hospital between December 2011 and November 2018. Design. This was a single-center retrospective study. We describe our patient management in detail. The primary end-points were death, heart transplantation, or pump explant. Data was reported in accordance with the Interagency Registry for Mechanical Circulatory Support protocol. All patients receiving an assist device during the study period were included in the data analysis. Results. Mean patient age was 53 ± 12 years at implantation and 85% were male. Most patients suffered from dilated (48%), or ischemic (40%) cardiomyopathy. One-third of patients were bridged with venoarterial extracorporeal membrane oxygenation to assist device implantation. Implant strategy was bridge to transplant or bridge to decision in most patients (88%). Mean follow-up time on pump was 529 ± 467 days. Survival was 98, 92, 85, 79 and 71% at 1, 3, 12, 24 and 36 months, respectively. Most common causes of death were multi-organ failure, right heart failure, or stroke. Only three patients (4%) had suspected pump thrombosis, two of which resolved with medical treatment and one resulting in death. Pump exchange or explant were not performed in a single patient. Neurological events occurred in 18%, non-disabling stroke in 8%, and fatal stroke in 4% of the patients. The incidence of device-related infection was 10%. Conclusions. Survival rates were good, although one third of patients were bridged with temporary circulatory support. We report a high level of freedom from pump thrombosis, fatal stroke, and driveline infection.
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Affiliation(s)
- Jan Kiss
- Department of Cardiothoracic Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Christoffer Stark
- Department of Cardiothoracic Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Antti Nykänen
- Department of Cardiothoracic Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Karl Lemström
- Department of Cardiothoracic Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
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Crum A, Flanders C, Wheaton R, Morgan A, Kiss J, Ludy M. Assessment of Cardiovascular Risk in First-Semester College Students. J Acad Nutr Diet 2019. [DOI: 10.1016/j.jand.2019.06.199] [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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Larson M, Ludy M, Kiss J, Morgan A. Comparison of Body Composition Assessment Techniques in Women’s Collegiate Swimmers and Divers. J Acad Nutr Diet 2019. [DOI: 10.1016/j.jand.2019.06.086] [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: 11/26/2022]
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Rosa ME, Kiss J, Barta Z, Kosztolányi A. Size‐dependent investment in tusk length, testis size and sperm length in a biparental geotrupid beetle. J Zool (1987) 2019. [DOI: 10.1111/jzo.12704] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- M. E. Rosa
- Department of Ecology University of Veterinary Medicine Budapest Budapest Hungary
- Doctoral School of Biological Sciences Szent István University Gödöllő Hungary
| | - J. Kiss
- MTA‐DE Behavioural Ecology Research Group, Department of Evolutionary Zoology and Human Biology University of Debrecen Debrecen Hungary
| | - Z. Barta
- MTA‐DE Behavioural Ecology Research Group, Department of Evolutionary Zoology and Human Biology University of Debrecen Debrecen Hungary
| | - A. Kosztolányi
- Department of Ecology University of Veterinary Medicine Budapest Budapest Hungary
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Stark C, Kiss J, Lemström K. Propranolol for gastrointestinal bleeding in two patients with continuous flow left ventricle assist device. Eur J Cardiothorac Surg 2018; 53:1284-1285. [PMID: 29244114 DOI: 10.1093/ejcts/ezx455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Accepted: 11/18/2017] [Indexed: 11/14/2022] Open
Abstract
Patients with continuous-flow left ventricle assist devices are at risk for gastrointestinal bleeding from angiodysplastic bowel lesions. Neoangiogenesis secondary to von Willebrand factor degradation and increased vascular endothelial growth factor (VEGF) signalling is likely related to their pathophysiology. We speculated that propranolol, known to downregulate VEGF signalling, could be beneficial in patients with recurrent bleeding episodes and anaemia. In this case report, we present a short-term outcome of 2 patients treated with propranolol.
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Affiliation(s)
- Christoffer Stark
- Department of Cardiothoracic Surgery, Heart and Lung Center, Helsinki University Hospital, and University of Helsinki, Helsinki, Finland
| | - Jan Kiss
- Department of Cardiothoracic Surgery, Heart and Lung Center, Helsinki University Hospital, and University of Helsinki, Helsinki, Finland
| | - Karl Lemström
- Department of Cardiothoracic Surgery, Heart and Lung Center, Helsinki University Hospital, and University of Helsinki, Helsinki, Finland
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Kiss J, Nykänen A, Stark C, Lemström K. The Effect of Preoperative use of Mechanical Circulatory Support on Survival After Heart Transplantation in Finland. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.1127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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12
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Gubó R, Vári G, Kiss J, Farkas AP, Palotás K, Óvári L, Berkó A, Kónya Z. Tailoring the hexagonal boron nitride nanomesh on Rh(111) with gold. Phys Chem Chem Phys 2018; 20:15473-15485. [PMID: 29799587 DOI: 10.1039/c8cp00790j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The pore diameter (depth) of the periodically corrugated h-BN monolayer (“nanomesh”) can be tuned allyoing Au into the Rh(111) surface.
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Affiliation(s)
- R. Gubó
- Extreme Light Infrastructure-ALPS
- ELI-HU Non-profit Ltd
- H-6720 Szeged
- Hungary
- Department of Applied and Environmental Chemistry, University of Szeged
| | - G. Vári
- Department of Applied and Environmental Chemistry, University of Szeged
- H-6720 Szeged
- Hungary
| | - J. Kiss
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group
- H-6720 Szeged
- Hungary
| | - A. P. Farkas
- Extreme Light Infrastructure-ALPS
- ELI-HU Non-profit Ltd
- H-6720 Szeged
- Hungary
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group
| | - K. Palotás
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group
- H-6720 Szeged
- Hungary
- Institute of Physics
- Slovak Academy of Sciences
| | - L. Óvári
- Extreme Light Infrastructure-ALPS
- ELI-HU Non-profit Ltd
- H-6720 Szeged
- Hungary
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group
| | - A. Berkó
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group
- H-6720 Szeged
- Hungary
| | - Z. Kónya
- Department of Applied and Environmental Chemistry, University of Szeged
- H-6720 Szeged
- Hungary
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group
- H-6720 Szeged
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13
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Kari FA, Kroll J, Kiss J, Hess C, Stiller B, Siepe M, Beyersdorf F. Progression of Aortic Regurgitation After Different Repair Techniques for Congenital Aortic Valve Stenosis. Pediatr Cardiol 2016; 37:84-9. [PMID: 26266328 DOI: 10.1007/s00246-015-1243-0] [Citation(s) in RCA: 9] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 08/03/2015] [Indexed: 11/29/2022]
Abstract
We sought to characterize the incidence of AR progression and determine risk factors for AR progression in a consecutive series of infants and children after surgical correction of congenital aortic valvular and supravalvular stenosis. N = 30 patients underwent repair of the aortic valve for isolated congenital aortic valve stenosis (n = 14, 47 %) or combined with aortic regurgitation (AR, n = 16, 53%). N = 27 (90%) had a valvular and n = 3 patients (10%) presented with supravalvular pathology of their aortic valve. In n = 16 patients (53%) a bicuspid and in n = 2 (6%) patients, a unicuspid valve was present. Comparative survival was analyzed using the Cox model and log-rank calculations. Log-rank calculations were performed for variables reaching statistical significance in order to identify differences in survival between groups. Commissurotomy was performed in n = 20 patients, patch implantation in n = 4, cusp shaving in n = 8, cusp prolapse correction in n = 3, and cusp augmentation in n = 4 patients. In patients with combined dysfunction and preoperative AR, AR was successfully reduced by the initial procedure, and postoperatively the overall median AR grade was 1+ (range 0-2.5+, p = 0.001, for AR reduction among patients with any grade of preoperative AR). By the time of follow-up echocardiography, the median AR grade had significantly progressed toward 1.5+ (p = 0.004). At the time of mid-term follow-up at 3.2 years, none of the patients had moderate or severe AR grades >2.5+. Patients with a monocuspid aortic valve and patients who had some kind of patch implantation into their cusps or commissures or shaving of thickened cusps were more likely to present with progression of aortic regurgitation. Monocuspid aortic valve and patch implantation, as well as cusp shaving, are probably linked to AR progression. The standard procedure of commissurotomy results in an absolute rate of AR progression of 40 % over a medium-term follow-up period.
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Affiliation(s)
- Fabian A Kari
- Department of Cardiovascular Surgery, Heart Center Freiburg University, Hugstetter Strasse 55, 79106, Freiburg, Germany.
| | - Johannes Kroll
- Department of Cardiovascular Surgery, Heart Center Freiburg University, Hugstetter Strasse 55, 79106, Freiburg, Germany
| | - Jan Kiss
- Department of Cardiovascular Surgery, Heart Center Freiburg University, Hugstetter Strasse 55, 79106, Freiburg, Germany
| | - Carolin Hess
- Department of Cardiovascular Surgery, Heart Center Freiburg University, Hugstetter Strasse 55, 79106, Freiburg, Germany
| | - Brigitte Stiller
- Center for Pediatrics, University Medical Center Freiburg, Freiburg, Germany
| | - Matthias Siepe
- Department of Cardiovascular Surgery, Heart Center Freiburg University, Hugstetter Strasse 55, 79106, Freiburg, Germany
| | - Friedhelm Beyersdorf
- Department of Cardiovascular Surgery, Heart Center Freiburg University, Hugstetter Strasse 55, 79106, Freiburg, Germany
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14
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Selt F, Kiss J, Gronych J, Jones DTW, Brummer T, Kulozik AE, Pfister SM, Milde T, Witt O. Preclinical model development for pilocytic astrocytoma. Klin Padiatr 2015. [DOI: 10.1055/s-0035-1564679] [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: 10/22/2022]
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15
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Farkas A, Török P, Solymosi F, Kiss J, Kónya Z. Investigation of the adsorption properties of borazine and characterisation of boron nitride on Rh(1 1 1) by electron spectroscopic methods. Applied Surface Science 2015. [DOI: 10.1016/j.apsusc.2015.05.060] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Varga E, Pusztai P, Óvári L, Oszkó A, Erdőhelyi A, Papp C, Steinrück HP, Kónya Z, Kiss J. Probing the interaction of Rh, Co and bimetallic Rh-Co nanoparticles with the CeO2 support: catalytic materials for alternative energy generation. Phys Chem Chem Phys 2015; 17:27154-66. [PMID: 26415514 DOI: 10.1039/c5cp03549j] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interaction of CeO2-supported Rh, Co and bimetallic Rh-Co nanoparticles, which are active catalysts in hydrogen production via steam reforming of ethanol, a process related to renewable energy generation, was studied by X-ray diffraction (XRD), high resolution electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS) and low energy ion scattering (LEIS). Furthermore, diffuse reflectance infrared spectroscopy (DRIFTS) of adsorbed CO as a probe molecule was used to characterize the morphology of metal particles. At small loadings (0.1%), Rh is in a much dispersed state on ceria, while at higher contents (1-5%), Rh forms 2-8 nm particles. Between 473-673 K pronounced oxygen transfer from ceria to Rh is observed and at 773 K significant agglomeration of Rh occurs. On reduced ceria, XPS indicates a possible electron transfer from Rh to ceria. The formation of smaller ceria crystallites upon loading with Co was concluded from XRD and HRTEM; for 10% Co, the CeO2 particle size decreased from 27.6 to 10.7 nm. A strong dissolution of Co into ceria and a certain extent of encapsulation by ceria were deduced by XRD, XPS and LEIS. In the bimetallic system, the presence of Rh enhances the reduction of cobalt and ceria. During thermal treatments, reoxidation of Co occurs, and Rh agglomeration as well as oxygen migration from ceria to Rh are hindered in the presence of cobalt.
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Affiliation(s)
- E Varga
- Department of Physical Chemistry and Materials Science, University of Szeged, Aradi v.t. 1, H-6720 Szeged, Hungary.
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17
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Abstract
CeO2 films were prepared evaporating Ce on Cu(111) in O2 gas; a nearly perfect wetting could be achieved at pO2 = 5 × 10−7 mbar.
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Affiliation(s)
- G. Vári
- Department of Applied and Environmental Chemistry
- University of Szeged
- Szeged
- Hungary
| | - L. Óvári
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group
- Szeged
- Hungary
| | - J. Kiss
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group
- Szeged
- Hungary
| | - Z. Kónya
- Department of Applied and Environmental Chemistry
- University of Szeged
- Szeged
- Hungary
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group
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18
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Meshcheriakova O, Chadov S, Nayak AK, Rößler UK, Kübler J, André G, Tsirlin AA, Kiss J, Hausdorf S, Kalache A, Schnelle W, Nicklas M, Felser C. Large noncollinearity and spin reorientation in the novel Mn2RhSn Heusler magnet. Phys Rev Lett 2014; 113:087203. [PMID: 25192122 DOI: 10.1103/physrevlett.113.087203] [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] [Received: 11/04/2013] [Indexed: 06/03/2023]
Abstract
Noncollinear magnets provide essential ingredients for the next generation memory technology. It is a new prospect for the Heusler materials, already well known due to the diverse range of other fundamental characteristics. Here, we present a combined experimental and theoretical study of novel noncollinear tetragonal Mn(2)RhSn Heusler material exhibiting unusually strong canting of its magnetic sublattices. It undergoes a spin-reorientation transition, induced by a temperature change and suppressed by an external magnetic field. Because of the presence of Dzyaloshinskii-Moriya exchange and magnetic anisotropy, Mn(2)RhSn is suggested to be a promising candidate for realizing the Skyrmion state in the Heusler family.
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Affiliation(s)
- O Meshcheriakova
- Graduate School of Excellence "Materials Science in Mainz" Johannes Gutenberg-Universtität, 55099 Mainz, Germany and Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - S Chadov
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - A K Nayak
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - U K Rößler
- Leibniz-Institut für Festkörper-und Werkstoffforschung IFW, Helmholtz Strasse 20, 01171 Dresden, Germany
| | - J Kübler
- Institut für Festkörperphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - G André
- Laboratoire Léon Brillouin, CEA-CNRS Saclay, 91191 Gif-sur-Yvette Cedex, France
| | - A A Tsirlin
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - J Kiss
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - S Hausdorf
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - A Kalache
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - W Schnelle
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - M Nicklas
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Strasse 40, 01187 Dresden, Germany
| | - C Felser
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Strasse 40, 01187 Dresden, Germany
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Gamal EM, Szabó A, Szüle E, Vörös A, Metzger P, Kovács G, Kovács J, Oláh A, Rózsa I, Kiss J. Percutaneous video choledochoscopic treatment of retained biliary stones via dilated T-tube tract. Surg Endosc 2014; 15:473-6. [PMID: 11353964 DOI: 10.1007/s004640000274] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2000] [Accepted: 03/30/2000] [Indexed: 11/24/2022]
Abstract
BACKGROUND Retained biliary stones is a common clinical problem in patients after surgery for complicated gallstone disease. When postoperative endoscopic retrograde cholangiopancreatography (ERCP) and endoscopic sphincterotomy are unsuccessful, several percutaneous procedures for stone removal can be applied as alternatives to relaparotomy. These procedures are performed either under fluoroscopic control or with the use of choledochoscopy, but it is also possible to combine these methods. METHODS Since 1994, we have used the percutaneous video choledochoscopic technique for the removal of difficult retained biliary stones via dilated T-tube tract in 17 patients, applying the technique of percutaneous stone extraction used in urology. While waiting for the T-tube tract to mature and after the removal of the T-tube, the dilatation of its tract was 26-30 Fr. Stone removal was carried out using a flexible video choledochoscope and a rigid renoscope under fluoroscopic control, with the aid of Dormia baskets, rigid forceps, and high-pressure irrigation. RESULTS We performed 23 operative procedures, and the clearance of the biliary ducts was successful in all cases. There were no major complications or deaths. CONCLUSION Percutaneous video choledochoscopic-assisted removal of large retained biliary stones via the T-tube tract is a highly effective and safe procedure. Its advantages over other procedures include the ability to visualize the stones and noncalculous filling defects; it also guarantees that the stones can be removed under visual video endoscopic control. It has no problems related to tract or stone size.
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Affiliation(s)
- E M Gamal
- Department of Surgery, Faculty of Health Sciences, Semmelweis University, Szabolcs u. 35, 1135 Budapest, Hungary.
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20
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Ferencz Z, Erdőhelyi A, Baán K, Oszkó A, Óvári L, Kónya Z, Papp C, Steinrück HP, Kiss J. Effects of Support and Rh Additive on Co-Based Catalysts in the Ethanol Steam Reforming Reaction. ACS Catal 2014. [DOI: 10.1021/cs500045z] [Citation(s) in RCA: 110] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Zs. Ferencz
- Department
of Physical Chemistry and Materials Science, University of Szeged, Aradi vértanúk tere 1., Szeged H-6720, Hungary
| | - A. Erdőhelyi
- Department
of Physical Chemistry and Materials Science, University of Szeged, Aradi vértanúk tere 1., Szeged H-6720, Hungary
| | - K. Baán
- Department
of Physical Chemistry and Materials Science, University of Szeged, Aradi vértanúk tere 1., Szeged H-6720, Hungary
| | - A. Oszkó
- Department
of Physical Chemistry and Materials Science, University of Szeged, Aradi vértanúk tere 1., Szeged H-6720, Hungary
| | - L. Óvári
- MTA-SZTE
Reaction Kinetics and Surface Chemistry Research Group, Rerrich Béla tér 1., Szeged H-6720, Hungary
| | - Z. Kónya
- MTA-SZTE
Reaction Kinetics and Surface Chemistry Research Group, Rerrich Béla tér 1., Szeged H-6720, Hungary
- Department
of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1., Szeged H-6720, Hungary
| | - C. Papp
- Physikaliche
Chemie II, University of Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen, Germany
| | - H.-P. Steinrück
- Physikaliche
Chemie II, University of Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen, Germany
| | - J. Kiss
- Department
of Physical Chemistry and Materials Science, University of Szeged, Aradi vértanúk tere 1., Szeged H-6720, Hungary
- MTA-SZTE
Reaction Kinetics and Surface Chemistry Research Group, Rerrich Béla tér 1., Szeged H-6720, Hungary
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21
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Pusztai P, Puskás R, Varga E, Erdőhelyi A, Kukovecz Á, Kónya Z, Kiss J. Influence of gold additives on the stability and phase transformation of titanate nanostructures. Phys Chem Chem Phys 2014; 16:26786-97. [PMID: 25372766 DOI: 10.1039/c4cp04084h] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Au is stabilized on titanate nanowires partially in positively charged gold form and also as Au clusters. Au loaded nanotubes loose their tubular morphology and are readily transformed into anatase. On the other hand, gold stabilizes the layered structure of titanate nanowires.
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Affiliation(s)
- P. Pusztai
- Department of Applied and Environmental Chemistry
- University of Szeged
- , Hungary
| | - R. Puskás
- Department of Applied and Environmental Chemistry
- University of Szeged
- , Hungary
| | - E. Varga
- Department of Physical Chemistry and Materials Science
- University of Szeged
- H-6720 Szeged, Hungary
| | - A. Erdőhelyi
- Department of Physical Chemistry and Materials Science
- University of Szeged
- H-6720 Szeged, Hungary
| | - Á. Kukovecz
- Department of Applied and Environmental Chemistry
- University of Szeged
- , Hungary
- MTA-SZTE “Lendület” Porous Nanocomposites Research Group
- Hungary
| | - Z. Kónya
- Department of Applied and Environmental Chemistry
- University of Szeged
- , Hungary
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group H-6720 Szeged
- , Hungary
| | - J. Kiss
- Department of Physical Chemistry and Materials Science
- University of Szeged
- H-6720 Szeged, Hungary
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group H-6720 Szeged
- , Hungary
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22
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Óvári L, Krick Calderon S, Lykhach Y, Libuda J, Erdőhelyi A, Papp C, Kiss J, Steinrück HP. Near ambient pressure XPS investigation of the interaction of ethanol with Co/CeO2(111). J Catal 2013. [DOI: 10.1016/j.jcat.2013.07.015] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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23
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Pótári G, Madarász D, Nagy L, László B, Sápi A, Oszkó A, Kukovecz A, Erdőhelyi A, Kónya Z, Kiss J. Rh-Induced Support Transformation Phenomena in Titanate Nanowire and Nanotube Catalysts. Langmuir 2013; 29:3061-72. [PMID: 23387804 DOI: 10.1021/la304470v] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- G. Pótári
- Department of Physical Chemistry
and Materials Science, University of Szeged, Aradi vértanúk tere 1., Szeged, Hungary H-6720
| | - D. Madarász
- Department of Applied and Environmental
Chemistry, University of Szeged, H-6720
Szeged, Hungary
| | - L. Nagy
- Department of Applied and Environmental
Chemistry, University of Szeged, H-6720
Szeged, Hungary
| | - B. László
- Department of Physical Chemistry
and Materials Science, University of Szeged, Aradi vértanúk tere 1., Szeged, Hungary H-6720
| | - A. Sápi
- Department of Applied and Environmental
Chemistry, University of Szeged, H-6720
Szeged, Hungary
| | - A. Oszkó
- Department of Physical Chemistry
and Materials Science, University of Szeged, Aradi vértanúk tere 1., Szeged, Hungary H-6720
| | - A. Kukovecz
- Department of Applied and Environmental
Chemistry, University of Szeged, H-6720
Szeged, Hungary
- MTA-SZTE “Lendület” Porous Nanocomposites Research Group, H-6720 Szeged,
Rerrich Béla tér 1, Hungary
| | - A. Erdőhelyi
- Department of Physical Chemistry
and Materials Science, University of Szeged, Aradi vértanúk tere 1., Szeged, Hungary H-6720
| | - Z. Kónya
- Department of Applied and Environmental
Chemistry, University of Szeged, H-6720
Szeged, Hungary
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, H-6720
Szeged, Rerrich Béla tér 1, Hungary
| | - J. Kiss
- Department of Physical Chemistry
and Materials Science, University of Szeged, Aradi vértanúk tere 1., Szeged, Hungary H-6720
- MTA-SZTE Reaction Kinetics and Surface Chemistry Research Group, H-6720
Szeged, Rerrich Béla tér 1, Hungary
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24
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Maier S, Scherer C, Schmidt F, Prassek S, Klemm R, Kiss J, Benk C, Beyersdorf F. Optimization of micro bubble elimination by the use of an oxygenator with an integrated arterial filter in combination with the dynamic bubble trap. Thorac Cardiovasc Surg 2013. [DOI: 10.1055/s-0032-1332690] [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: 10/27/2022]
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25
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Madarász D, Pótári G, Sápi A, László B, Csudai C, Oszkó A, Kukovecz Á, Erdőhelyi A, Kónya Z, Kiss J. Metal loading determines the stabilization pathway for Co2+ in titanate nanowires: ion exchange vs. cluster formation. Phys Chem Chem Phys 2013; 15:15917-25. [PMID: 23949088 DOI: 10.1039/c3cp51502h] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- D Madarász
- Department of Applied and Environmental Chemistry, University of Szeged, Hungary
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26
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Neubauer D, Frick M, Kiss J, Dietl P, Mizaikoff B, Wittekindt OH. Deuteriumoxid-Verdünnungsmethode zur Messung des transepithelialen Wassertransports. Pneumologie 2012. [DOI: 10.1055/s-0032-1309183] [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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27
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Benk C, Kiss J, Dashkevich A, Klemm R, Grohmann J, Schlensak C, Beyersdorf F. Successful ECMO – treatment of acute cardio-respiratory failure due to shunt thrombosis after Norwood I procedure. Thorac Cardiovasc Surg 2012. [DOI: 10.1055/s-0031-1297901] [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: 10/14/2022]
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28
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Eskola O, Grönroos TJ, Naum A, Marjamäki P, Forsback S, Bergman J, Länkimäki S, Kiss J, Savunen T, Knuuti J, Haaparanta M, Solin O. Novel electrophilic synthesis of 6-[18F]fluorodopamine and comprehensive biological evaluation. Eur J Nucl Med Mol Imaging 2012; 39:800-10. [DOI: 10.1007/s00259-011-2032-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Accepted: 12/08/2011] [Indexed: 10/14/2022]
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29
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Ladanvi A, Kiss J, Mohos A, Somlai B, Liszkay G, Gilde K, Fejos Z, Gaudi I, Timár J. 9325 POSTER Prognostic Impact of B-Cell Infiltration in Melanoma. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72534-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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30
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Oszkó A, Pótári G, Erdőhelyi A, Kukovecz A, Kónya Z, Kiricsi I, Kiss J. Structure of the Au–Rh bimetallic system formed on titanate nanowires and nanotubes. Vacuum 2011. [DOI: 10.1016/j.vacuum.2010.12.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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31
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Kukovecz Á, Pótári G, Oszkó A, Kónya Z, Erdőhelyi A, Kiss J. Probing the interaction of Au, Rh and bimetallic Au–Rh clusters with the TiO2 nanowire and nanotube support. Surface Science 2011. [DOI: 10.1016/j.susc.2011.03.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Kiss J, Langenberg D, Silber D, Traeger F, Jin L, Qiu H, Wang Y, Meyer B, Wöll C. Combined Theoretical and Experimental Study on the Adsorption of Methanol on the ZnO(101̅0) Surface. J Phys Chem A 2011; 115:7180-8. [DOI: 10.1021/jp200146v] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J. Kiss
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, 44780 Bochum, Germany
| | - D. Langenberg
- Lehrstuhl für Physikalische Chemie I, Ruhr-Universität Bochum, 44780 Bochum, Germany
| | - D. Silber
- Lehrstuhl für Physikalische Chemie I, Ruhr-Universität Bochum, 44780 Bochum, Germany
| | - F. Traeger
- Lehrstuhl für Physikalische Chemie I, Ruhr-Universität Bochum, 44780 Bochum, Germany
| | - L. Jin
- Lehrstuhl für Physikalische Chemie I, Ruhr-Universität Bochum, 44780 Bochum, Germany
| | - H. Qiu
- Lehrstuhl für Physikalische Chemie I, Ruhr-Universität Bochum, 44780 Bochum, Germany
| | - Y. Wang
- Lehrstuhl für Physikalische Chemie I, Ruhr-Universität Bochum, 44780 Bochum, Germany
- Lehrstuhl für Technische Chemie, Ruhr-Universität Bochum, 44780 Bochum, Germany
| | - B. Meyer
- Lehrstuhl für Theoretische Chemie, Ruhr-Universität Bochum, 44780 Bochum, Germany
- Interdisziplinäres Zentrum für Molekulare Materialien (ICMM) and Computer-Chemie-Centrum (CCC), Friedrich-Alexander-Universität Erlangen-Nürnberg, Nägelsbachstr. 25, 91052 Erlangen, Germany
| | - Ch. Wöll
- Lehrstuhl für Physikalische Chemie I, Ruhr-Universität Bochum, 44780 Bochum, Germany
- Institut für Funktionelle Grenzflächen (IFG), Karlsruher Institut für Technologie (KIT), Kaiserstr. 12, 76131 Karlsruhe, Germany
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Hannukainen JC, Borra R, Linderborg K, Kallio H, Kiss J, Lepomäki V, Kalliokoski KK, Kujala UM, Kaprio J, Heinonen OJ, Komu M, Parkkola R, Ahotupa M, Lehtimäki T, Huupponen R, Iozzo P, Nuutila P. Liver and pancreatic fat content and metabolism in healthy monozygotic twins with discordant physical activity. J Hepatol 2011; 54:545-52. [PMID: 21112658 DOI: 10.1016/j.jhep.2010.07.029] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2010] [Revised: 07/05/2010] [Accepted: 07/09/2010] [Indexed: 12/11/2022]
Abstract
BACKGROUND & AIMS Ectopic fat in muscle and liver is linked to obesity and type 2 diabetes. Recently, pancreatic lipid accumulation has also been associated with β-cell dysfunction and reduced insulin production, leading to the development of type 2 diabetes. Physical exercise training has been shown to attenuate β-cell dysfunction in patients, but little is known about its effects on pancreatic and hepatic fat accumulation. In this study, we validated in-vivo proton magnetic resonance spectroscopy ((1)H MRS) in pancreatic fat measurement with biochemical measurements in a pig model. Thereafter, the effects of increased physical activity on the amounts of pancreatic and liver fat were studied in eight monozygotic twin pairs who have discordant physical activity and fitness. METHODS Pancreatic fat content was studied in 15 pigs using (1)H MRS and/or biochemical analyses. In addition, liver and pancreatic fat were assessed using (1)H MRS in eight monozygotic male twin pairs with 18% mean difference in VO(2max) between the twin brothers. RESULTS Twins with higher physical fitness had 23% less liver fat (1.3±1.3% vs. 2.1±2.6%, p=0.022) but no such difference was observed in the pancreatic fat (8.2±9.3% vs. 9.8±8.5%, respectively, p=0.3). Hepatic fat content was inversely associated with VO(2max). A positive association was found between pancreatic and liver fat contents (β=5.18, p=0.012). Pancreatic fat content was also associated with insulin sensitivity indexes and plasma adiponectin and glutamyltransferase concentrations. CONCLUSIONS Pancreatic fat content is associated with insulin resistance and hepatic fat content. An active lifestyle seems to beneficially influence hepatic fat metabolism.
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Dashkevich A, Kiss J, Heilmann C, Eckert A, Foerster K, Schlensak C, Beyersdorf F, Geissler HJ. Microangiogenesis in syngeneic and allogeneic heart transplantation in rat: The impact of acute allograft rejection on lymph- and hemangiogenesis. Thorac Cardiovasc Surg 2011. [DOI: 10.1055/s-0030-1268967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Perry JN, Devos Y, Arpaia S, Bartsch D, Gathmann A, Hails RS, Kiss J, Lheureux K, Manachini B, Mestdagh S, Neemann G, Ortego F, Schiemann J, Sweet JB. The usefulness of a mathematical model of exposure for environmental risk assessment. Proc Biol Sci 2011; 278:982-4. [PMID: 21208963 PMCID: PMC3049040 DOI: 10.1098/rspb.2010.2667] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Affiliation(s)
- J N Perry
- Oaklands Barn, Lug's Lane, Broome, Norfolk NR35 2HT, UK
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Malmberg M, Parkka J, Vahasilta T, Saraste A, Laitio T, Kiss J, Latva-Hirvela J, Saukko P, Savunen T. Cardiomyocyte apoptosis after cardioplegic ischemia: comparison to unprotected regional ischemia-reperfusion. ACTA ACUST UNITED AC 2010; 46:19-25. [PMID: 21150207 DOI: 10.1159/000321875] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2010] [Accepted: 10/08/2010] [Indexed: 11/19/2022]
Abstract
BACKGROUND Cardiomyocyte apoptosis might contribute to left ventricular (LV) dysfunction following cardiac surgery. Magnetic resonance imaging is considered the most accurate method of determining LV function. We compared apoptosis (by terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling, TUNEL, staining and detection of caspase 3 activation) and LV function after regional ischemia-reperfusion (I-R) and global cardioplegic ischemia. METHODS Pigs were randomized to undergo regional myocardial I-R for 20 + 20 min, global myocardial ischemia with cardiopulmonary bypass (CPB) for 40 min or CPB without ischemia (control), followed by 274 min of reperfusion. RESULTS Compared with the control group, the number of TUNEL-positive cardiomyocytes was higher in the global ischemia group with CPB (0.024 ± 0.014%; p = 0.02) and further increased in areas of unprotected regional I-R (0.444 ± 0.562%; p = 0.003, vs. control). Myocytes with active caspase 3 were detected after global and regional ischemia. The global ejection fraction did not differ between CPB and regional I-R groups. CONCLUSIONS The use of cardioplegia and CPB efficiently protects the heart from global I-R-induced cardiomyocyte apoptosis during open heart surgery.
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Affiliation(s)
- M Malmberg
- Department of Surgery, Turku University Hospital, Turku, Finland.
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Iozzo P, Bucci M, Roivainen A, Någren K, Järvisalo MJ, Kiss J, Guiducci L, Fielding B, Naum AG, Borra R, Virtanen K, Savunen T, Salvadori PA, Ferrannini E, Knuuti J, Nuutila P. Fatty acid metabolism in the liver, measured by positron emission tomography, is increased in obese individuals. Gastroenterology 2010; 139:846-56, 856.e1-6. [PMID: 20685204 DOI: 10.1053/j.gastro.2010.05.039] [Citation(s) in RCA: 126] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2010] [Revised: 04/14/2010] [Accepted: 05/20/2010] [Indexed: 02/08/2023]
Abstract
BACKGROUND & AIMS Hepatic lipotoxicity results from and contributes to obesity-related disorders. It is a challenge to study human metabolism of fatty acids (FAs) in the liver. We combined (11)C-palmitate imaging by positron emission tomography (PET) with compartmental modeling to determine rates of hepatic FA uptake, oxidation, and storage, as well as triglyceride release in pigs and human beings. METHODS Anesthetized pigs underwent (11)C-palmitate PET imaging during fasting (n = 3) or euglycemic hyperinsulinemia (n = 3). Metabolic products of FAs were measured in arterial, portal, and hepatic venous blood. The imaging methodology then was tested in 15 human subjects (8 obese subjects); plasma (11)C-palmitate kinetic analyses were used to quantify systemic and visceral lipolysis. RESULTS In pigs, PET-derived and corresponding measured FA fluxes (FA uptake, esterification, and triglyceride FA release) did not differ and were correlated with each other. In human beings, obese subjects had increased hepatic FA oxidation compared with controls (mean +/- standard error of the mean, 0.16 +/- 0.01 vs 0.08 +/- 0.01 micromol/min/mL; P = .0007); FA uptake and esterification rates did not differ between obese subjects and controls. Liver FA oxidation correlated with plasma insulin levels (r = 0.61, P = .016), adipose tissue (r = 0.58, P = .024), and systemic insulin resistance (r = 0.62, P = .015). Hepatic FA esterification correlated with the systemic release of FA into plasma (r = 0.71, P = .003). CONCLUSIONS PET imaging can be used to measure FA metabolism in the liver. By using this technology, we found that obese individuals have increased hepatic oxidation of FA, in the context of adipose tissue insulin resistance, and increased FA flux from visceral fat. FA flux from visceral fat is proportional with the mass of the corresponding depot.
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Affiliation(s)
- Patricia Iozzo
- Turku PET Centre, and Department of Medicine, University of Turku, Turku, Finland.
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Hegyi B, Sagi B, Kovacs J, Kiss J, Urban VS, Meszaros G, Monostori E, Uher F. Identical, similar or different? Learning about immunomodulatory function of mesenchymal stem cells isolated from various mouse tissues: bone marrow, spleen, thymus and aorta wall. Int Immunol 2010; 22:551-9. [DOI: 10.1093/intimm/dxq039] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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Perry JN, Devos Y, Arpaia S, Bartsch D, Gathmann A, Hails RS, Kiss J, Lheureux K, Manachini B, Mestdagh S, Neemann G, Ortego F, Schiemann J, Sweet JB. A mathematical model of exposure of non-target Lepidoptera to Bt-maize pollen expressing Cry1Ab within Europe. Proc Biol Sci 2010; 277:1417-25. [PMID: 20053648 PMCID: PMC2871945 DOI: 10.1098/rspb.2009.2091] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2009] [Accepted: 12/09/2009] [Indexed: 11/12/2022] Open
Abstract
Genetically modified (GM) maize MON810 expresses a Cry1Ab insecticidal protein, derived from Bacillus thuringiensis (Bt), toxic to lepidopteran target pests such as Ostrinia nubilalis. An environmental risk to non-target Lepidoptera from this GM crop is exposure to harmful amounts of Bt-containing pollen deposited on host plants in or near MON810 fields. An 11-parameter mathematical model analysed exposure of larvae of three non-target species: the butterflies Inachis io (L.), Vanessa atalanta (L.) and moth Plutella xylostella (L.), in 11 representative maize cultivation regions in four European countries. A mortality-dose relationship was integrated with a dose-distance relationship to estimate mortality both within the maize MON810 crop and within the field margin at varying distances from the crop edge. Mortality estimates were adjusted to allow for physical effects; the lack of temporal coincidence between the susceptible larval stage concerned and the period over which maize MON810 pollen is shed; and seven further parameters concerned with maize agronomy and host-plant ecology. Sublethal effects were estimated and allowance made for aggregated pollen deposition. Estimated environmental impact was low: in all regions, the calculated mortality rate for worst-case scenarios was less than one individual in every 1572 for the butterflies and one in 392 for the moth.
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Affiliation(s)
- J N Perry
- Oaklands Barn, Lug's Lane, Broome, Norfolk NR35 2HT, UK.
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Dashkevich A, Kiss J, Heilmann C, Foerster K, Beyersdorf F, Geissler HJ. Quantitative Changes of Lymph‐ and Hemangiogenesis after Isogenic Heart Transplantation in Rat. FASEB J 2010. [DOI: 10.1096/fasebj.24.1_supplement.774.16] [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: 11/11/2022]
Affiliation(s)
- Alexey Dashkevich
- Cardiovascular SurgeryUniversity Medical Centre FreiburgFreiburgGermany
| | - Jan Kiss
- Cardiovascular SurgeryUniversity Medical Centre FreiburgFreiburgGermany
| | - Claudia Heilmann
- Cardiovascular SurgeryUniversity Medical Centre FreiburgFreiburgGermany
| | | | | | - Hans Joachim Geissler
- Cardiovascular SurgeryUniversity Medical Centre FreiburgFreiburgGermany
- Michael E. DeBakey InstituteCollege StationTX
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Ovári L, Berkó A, Balázs N, Majzik Z, Kiss J. Formation of Rh-Au core-shell nanoparticles on TiO2(110) surface studied by STM and LEIS. Langmuir 2010; 26:2167-2175. [PMID: 19891450 DOI: 10.1021/la902674u] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Rh-Au core-shell nanoparticles were fabricated on TiO(2)(110) surface by physical vapor deposition (PVD) of Rh followed by exposure of Au at elevated sample temperature (500 K). The morphology of the bimetallic particles was checked by scanning tunneling microscopy (STM). The chemical composition of the particles was characterized by low energy ion scattering (LEIS) method. It was shown that the "seeding + growing" method described previously for growth of monometallic particles in narrow size distribution (Berko, A. et al. J. Catal. 1999, 182, 511) can also be applied for fabrication of bimetallic nanoparticles. The large mean free path of surface diffusion of gold on the oxide support makes the accumulation of Au possible exclusively on the Rh seeds formed in the first step of the procedure. By performing careful STM and LEIS experiments, it was proven that, for appropriate Au and Rh coverages, the postdeposited Au completely and uniformly covers the Rh nanoparticles.
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Affiliation(s)
- L Ovári
- Reaction Kinetics Research Laboratory, Institute of Nanochemistry and Catalysis, Chemical Research Center of the Hungarian Academy of Sciences, H-6720 Szeged, Hungary
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Kiss J, Dashkevich A, Förster K, Beyersdorf F, Geissler HJ. Inhalation anesthesia with isoflurane is superior to intraperitoneal anesthesia with ketamin in heterotopic cardiac transplantation in rat. Thorac Cardiovasc Surg 2010. [DOI: 10.1055/s-0029-1247007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Teräs M, Kokki T, Durand-Schaefer N, Noponen T, Pietilä M, Kiss J, Hoppela E, Sipilä HT, Knuuti J. Dual-gated cardiac PET–Clinical feasibility study. Eur J Nucl Med Mol Imaging 2009; 37:505-16. [DOI: 10.1007/s00259-009-1252-4] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2008] [Accepted: 07/31/2009] [Indexed: 12/20/2022]
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Abstract
OBJECTIVES Acute lung injury and acute respiratory distress syndrome (ALI, ARDS) are well-known complications of cardiac and major vascular surgery. ARDS is associated with high mortality and no effective treatment is available. Protective effects of antioxidants or nitric oxide (NO) in experimental studies were not confirmed in clinical trials, but the potential beneficial effects of their combination are poorly known. This study was designed to investigate whether concomitant administration of NO donor and antioxidants has synergic effects on lung protection in ALI. DESIGN ALI was induced in rats by intestinal ischemia-reperfusion. Superoxide dismutase and catalase were administered as antioxidants and arginine as NO donor. Lung wet-dry ratio, MPO activity, tissue-air ratio, airspace hemorrhage and serum TNF-alpha were used as parameters of lung injury and systemic inflammation. RESULTS Antioxidants and arginine significantly reduced lung damage when administered separately. However, concomitant administration of antioxidants and arginine abolished the protective effects and enhanced systemic inflammation. CONCLUSIONS Our data suggests that antioxidants and NO in combination should be avoided in clinical practice.
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Affiliation(s)
- Jan Kiss
- Department of Surgery, Turku University Hospital, Turku, Finland.
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Kiss J, Kiss A, Tóth FD, Surányi P, Szegedi A, Rak K. Demonstration of HTLV-Related Pro viral DNA Sequences and Antibodies Reactive with HTLV Internal Proteins in an Hungarian Patient with Sézary Syndrome. Leuk Lymphoma 2009; 7:511-5. [PMID: 1362917 DOI: 10.3109/10428199209049809] [Citation(s) in RCA: 4] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
DNA sequences distantly related to the proviral DNA of HTLV-I were found in the leukemic cells of a Hungarian patient suffering from Sézary syndrome. Serum samples from the patient contained antibodies reactive with the internal core polypeptides of HTLV-I and HTLV-II, but not with the env gene encoded type-specific HTLV antigens. The husband and daughter of the patient also had antibodies of the same specificity. These findings suggest the presence of a virus distantly related to HTLV-I and HTLV-II.
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Affiliation(s)
- J Kiss
- Institute of Microbiology, University Medical School, Debrecen, Hungary
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Kiss J, Jalkanen S, Fülöp F, Savunen T, Salmi M. Ischemia-reperfusion injury is attenuated in VAP-1-deficient mice and by VAP-1 inhibitors. Eur J Immunol 2009; 38:3041-9. [PMID: 18991279 DOI: 10.1002/eji.200838651] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Neutrophils mediate the damage caused by ischemia-reperfusion both at the site of primary injury and in remote organs. Vascular adhesion protein-1 (VAP-1) is an ectoenzyme expressed on endothelial cells and it has been shown to regulate leukocyte extravasation. Here we show for the first time using VAP-1-deficient mice that VAP-1 plays a significant role in the intestinal damage and acute lung injury after ischemia-reperfusion. Separate inhibition of VAP-1 by small molecule enzyme inhibitors and a function-blocking monoclonal antibody in WT mice revealed that the catalytic activity of VAP-1 is responsible for its pro-inflammatory action. The use of transgenic humanized VAP-1 mice also showed that the enzyme inhibitors alleviate both the ischemia-reperfusion injury in the gut and neutrophil accumulation in the lungs. These data thus indicate that VAP-1 regulates the inflammatory response in ischemia-reperfusion injury and suggest that blockade of VAP-1 may have therapeutic value.
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Affiliation(s)
- Jan Kiss
- MediCity Research Laboratory, University of Turku, Turku, Finland
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Gaida J, Kiss J, Bass S, Alfredson H. Systemic cytokine levels among subjects with asymptomatic tendon pathology and matched controls. J Sci Med Sport 2009. [DOI: 10.1016/j.jsams.2008.12.102] [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: 11/24/2022]
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Kiss J. Author's reply: Surgical treatment of oesophageal perforation ( Br J Surg 2008; 95: 805–806). Br J Surg 2008. [DOI: 10.1002/bjs.6404] [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: 11/08/2022]
Affiliation(s)
- J Kiss
- State Health Centre, Róbert Károly krt. 44, H-1134 Budapest, Hungary
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Kiss J. Author's reply: Surgical treatment of oesophageal perforation ( Br J Surg 2008; 95: 805–806). Br J Surg 2008. [DOI: 10.1002/bjs.6406] [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: 11/12/2022]
Affiliation(s)
- J Kiss
- State Health Centre, Róbert Károly krt. 44, H-1134 Budapest, Hungary
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Abstract
Several options–but choose wisely
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Affiliation(s)
- J Kiss
- State Health Centre, Róbert Károly krt. 44, H-1134 Budapest, Hungary
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