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Hoffmann K, Hooper T, Zhao H, Kolb U, Murshed M, Fischer M, Lührs H, Nénert G, Kudějová P, Senyshyn A, Schneider H, Hanna J, Gesing T, Fischer R. Crystal chemical characterization of mullite-type aluminum borate compounds. J SOLID STATE CHEM 2017. [DOI: 10.1016/j.jssc.2016.12.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Gergs U, Fahrion CM, Bock P, Fischer M, Wache H, Hauptmann S, Schmitz W, Neumann J. Evidence for a functional role of calsequestrin 2 in mouse atrium. Acta Physiol (Oxf) 2017; 219:669-682. [PMID: 27484853 DOI: 10.1111/apha.12766] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 02/23/2016] [Accepted: 07/30/2016] [Indexed: 12/01/2022]
Abstract
AIM Several genetically modified mice models were studied so far to investigate the role of cardiac calsequestrin (CSQ2) for the contractile function of the ventricle and for the occurrence of ventricular tachycardia. Using a CSQ2 knockout mouse, we wanted to study also the atrial function of CSQ2. METHODS The influence of CSQ2 on atrial function and, for comparison, ventricular function was studied in isolated cardiac preparations and by echocardiography as well as electrocardiography in mice with deletion of CSQ2. RESULTS Using deletion of exon 1, we have successfully generated a constitutive knockout mouse of the calsequestrin 2 gene (CSQ2-/- ). CSQ2 protein was absent in the heart (atrium, ventricle), but also in oesophagus and skeletal muscle of homozygous knockout mice. In 6-month-old CSQ2-/- mice, relative left atrial weight was increased, whereas relative heart weight was unchanged. The staircase phenomena in paced left atrial preparations on force of contraction and the post-rest potentiation were different between wild type and CSQ2-/- indicative for a decreased sarcoplasmic Ca2+ load and supporting an important role of CSQ2 also in the atrium. The incidence of arrhythmias was increased in CSQ2-/- . In 2-year-old CSQ2-/- mice, cardiac hypertrophy and heart failure were noted possibly as a result of chronically increased cytosolic Ca2+ levels. CONCLUSION These data suggest a functional role of CSQ2 not only in the ventricle but also in the atrium of mammalian hearts. Loss of CSQ2 function can cause not only arrhythmias, but also cardiac hypertrophy and heart failure.
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Abstract
Stroke in young adults is a diagnostic and therapeutic challenge for all persons involved. Approximately 15% of ischemic strokes occur in young adults. Lack of awareness of the symptoms in emergency departments often results in delayed diagnosis and access to specific therapeutic options, such as revascularization. The causes are often heterogeneous and necessitate specific investigations. The etiology of juvenile stroke includes drug abuse, vasculitis and arteriopathies, such as reversible vasoconstriction syndrome and posterior reversible encephalopathy syndrome, although the prevalence of classical vascular risk factors is high. The most frequent causes of ischemic stroke in young adults are cardioembolism and microangiopathy; furthermore, dissection of vessels of the neck are more frequent compared to older patients. According to the results of currently available studies reperfusion strategies, such as intravenous fibrinolysis and mechanical thrombectomy are efficacious and safe in young patients.
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Ulrich S, Lehner A, Birnbaum J, Schramm R, Fischer M, Dalla R, Haas N. Is Optical Coherence Tomography Superior in Comparison to Coronary Angiography and Biopsy Regarding the Detection of Cardiac Allograft Vasculopathy? Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1599012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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130
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Fernandez S, Haas N, Lehner A, Birnbaum J, Fischer M, Schulze-Neick I. Filling the Gap in the Detection and Management of Dysrhythmia: The Life Vest. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1599047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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131
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Lehner A, Ulrich S, Dalla-Pozza R, Fischer M, Haas N, Curta A, Kramer H. 4D-Flow MRI in Patients with Fontan Circulation for Evaluation of Pulmonary Arterial Blood Distribution. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1599025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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132
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Birnbaum J, Ulrich SM, Schramm R, Hagl C, Lehner A, Fischer M, Haas NA, Heineking B. Transient severe tricuspid regurgitation after transplantation of an extremely oversized donor heart in a child-Does size matter? A case report. Pediatr Transplant 2017; 21. [PMID: 27925367 DOI: 10.1111/petr.12863] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/08/2016] [Indexed: 12/01/2022]
Abstract
In pediatric heart transplantation, the size of the donor organ is an important criterion for organ allocation. Oversized donor hearts are often accepted with good results, but some complications in relation to a high donor-recipient ratio have been described. Our patient was transplanted for progressive heart failure in dilated cardiomyopathy. The donor-to-recipient weight ratio was 3 (donor weight 65 kg, recipient weight 22 kg). The intra-operative echocardiography before chest closure showed excellent cardiac function, no tricuspid valve regurgitation, and a normal central venous pressure. After chest closure, central venous pressure increased substantially and echocardiography revealed a severe tricuspid insufficiency. As other reasons for right ventricular dysfunction, that is, myocardial ischemia, pulmonary hypertension, and rejection, were excluded, we assumed that the insufficiency was caused by an alteration of the right ventricular geometry. After 1 week, the valve insufficiency regressed to a minimal degree. In pediatric heart transplant patients with a high donor-to-recipient weight ratio, the outlined complication may occur. If other reasons for right ventricular heart failure can be ruled out, this entity is most likely caused by an acute and transient alteration of the right ventricular geometry that may disappear over time.
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Fischer M. Über die Funktion des Oxydationsmittels bei der chemischen Passivierung des Eisens. ACTA ACUST UNITED AC 2017. [DOI: 10.1515/zpch-1979-26016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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135
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Fischer M. Über die pH-Abhängigkeit der korrosionshemmenden Wirkung luftgesättigter wäßriger Phthalatlösungen gegenüber Eisen. Z PHYS CHEM 2017. [DOI: 10.1515/zpch-1977-258122] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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136
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Schwabe K, Reinhard G, Fischer M. Zur Wirksamkeit strukturell vergleichbarer Thioäther als Korrosionsinhibitoren. Z PHYS CHEM 2017. [DOI: 10.1515/zpch-1972-25102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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137
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Fischer M, Biersack HJ. Radionuclide therapy of malignant bone lesions. Eur J Nucl Med Mol Imaging 2016; 44:728-729. [PMID: 27942833 DOI: 10.1007/s00259-016-3574-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 11/09/2016] [Indexed: 11/27/2022]
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138
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Trentzsch H, Fischer M, Kehrberger E, Marung H, Moecke H, Prückner S, Urban B. [Key issues paper 2016: specific recommendations for tracer diagnoses]. Unfallchirurg 2016; 119:959-960. [PMID: 27757486 DOI: 10.1007/s00113-016-0260-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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139
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Mauer UM, Fischer M, Kehrberger E, Moecke H, Prückner S, Trentzsch H, Urban B, Marung H. [Consensus Document on the Tracer Diagnosis of Severe Head and Brain Trauma]. Unfallchirurg 2016; 119:964-966. [PMID: 27757485 DOI: 10.1007/s00113-016-0257-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Liang J, Crowther TW, Picard N, Wiser S, Zhou M, Alberti G, Schulze ED, McGuire AD, Bozzato F, Pretzsch H, de-Miguel S, Paquette A, Herault B, Scherer-Lorenzen M, Barrett CB, Glick HB, Hengeveld GM, Nabuurs GJ, Pfautsch S, Viana H, Vibrans AC, Ammer C, Schall P, Verbyla D, Tchebakova N, Fischer M, Watson JV, Chen HYH, Lei X, Schelhaas MJ, Lu H, Gianelle D, Parfenova EI, Salas C, Lee E, Lee B, Kim HS, Bruelheide H, Coomes DA, Piotto D, Sunderland T, Schmid B, Gourlet-Fleury S, Sonke B, Tavani R, Zhu J, Brandl S, Vayreda J, Kitahara F, Searle EB, Neldner VJ, Ngugi MR, Baraloto C, Frizzera L, Ba azy R, Oleksyn J, Zawi a-Nied wiecki T, Bouriaud O, Bussotti F, Finer L, Jaroszewicz B, Jucker T, Valladares F, Jagodzinski AM, Peri PL, Gonmadje C, Marthy W, OBrien T, Martin EH, Marshall AR, Rovero F, Bitariho R, Niklaus PA, Alvarez-Loayza P, Chamuya N, Valencia R, Mortier F, Wortel V, Engone-Obiang NL, Ferreira LV, Odeke DE, Vasquez RM, Lewis SL, Reich PB. Positive biodiversity-productivity relationship predominant in global forests. Science 2016; 354:354/6309/aaf8957. [DOI: 10.1126/science.aaf8957] [Citation(s) in RCA: 659] [Impact Index Per Article: 82.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 08/22/2016] [Indexed: 11/02/2022]
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Meyer Z, Fischer M, Koerfer J, Laser K, Kececioglu D, Burchert W, Ulrich S, Preuss R, Haas N. The role of FDG-PET-CT in pediatric cardiac patients and patients with congenital heart defects. Int J Cardiol 2016; 220:656-60. [DOI: 10.1016/j.ijcard.2016.06.109] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Revised: 05/27/2016] [Accepted: 06/21/2016] [Indexed: 12/19/2022]
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142
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Dubler S, Zimmermann S, Fischer M, Schnitzler P, Bruckner T, Weigand MA, Frank U, Hofer S, Heininger A. Bacterial and viral contamination of breathing circuits after extended use - an aspect of patient safety? Acta Anaesthesiol Scand 2016; 60:1251-60. [PMID: 27470996 DOI: 10.1111/aas.12768] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 06/24/2016] [Accepted: 06/27/2016] [Indexed: 01/22/2023]
Abstract
BACKGROUND In the past, anaesthetic breathing circuits were identified as a source of pathogen transmission. It is still debated, whether breathing circuits combined with breathing system filters can be safely used for more than 1 day. The aim of this study was to evaluate the transmission risk of bacteria and also viruses via breathing circuits after extended use. METHODS The inner and outer surface of 102 breathing circuits used for 1 day and of 101 circuits used for 7 days were examined for bacteria and viruses. Additionally, 10 and 20 breathing circuits each were examined after use on patients with pulmonary virus infection and with multidrug-resistant organism (MDRO) colonisation/infection respectively. Bacteria were detected by standard microbiological procedures; PCR techniques were applied for herpes simplex virus, cytomegalovirus, influenza, parainfluenza and respiratory syncytial virus. RESULTS Endoluminal bacterial contamination of breathing circuits remained unchanged after 7-day vs. 1-day use (5.9% vs. 7.8%) [CI95%: -0.0886-0.0506, pnon-inferiority 0.0260]. Only outside surface contamination with bacteria belonging to environmental species or human flora increased (16.8 vs. 6.9%) [CI 95%: 0.0118 - 0.1876, pnon-inferiority 0.8660]. Viruses occurred on the patient side, but not in breathing circuits. No MDRO occurred in the 20 circuits after use on patients harbouring such germs. CONCLUSION Endoluminal contamination of breathing circuits with bacteria did not increase after extended use. No viruses were detected in the breathing circuits using filters. Based on our results, the extended use of ABC without exceptions appears safe, if a high level of anaesthesia workplace cleaning is secured.
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Powietzka J, Stallmann C, Fischer M, Swart E. Das Einwilligungsverhalten der NAKO-TeilnehmerInnen zur ergänzenden wissenschaftlichen Nutzung der Sekundär- und Registerdaten. DAS GESUNDHEITSWESEN 2016. [DOI: 10.1055/s-0036-1586670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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144
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Stratmann B, Krepak Y, Schiffer E, Jarick I, Hauber M, Lee-Barkey YH, Fischer M, Tschoepe D. Beneficial Metabolic Effects of Duodenal Jejunal Bypass Liner for the Treatment of Adipose Patients with Type 2 Diabetes Mellitus: Analysis of Responders and Non-Responders. HORMONE AND METABOLIC RESEARCH = HORMON- UND STOFFWECHSELFORSCHUNG = HORMONES ET METABOLISME 2016. [PMID: 27589345 DOI: 10.1055/s-0042–115175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/30/2022]
Abstract
Implantation of a duodenal-jejunal endoluminal bypass liner (DJBL) has shown to induce weight loss and to improve metabolic parameters. DJBL is a reversible endoduodenal sleeve mimicking duodenal bypass while lacking risks and limitations of bariatric surgery.Effects on metabolic control, body mass parameters, appetite regulation, glucose tolerance, organ health, and lipid profile were determined in 16 morbidly overweight patients with type 2 diabetes mellitus. In addition, relevant hormones (leptin, ghrelin, gastric inhibitory peptide, glucagon-like peptide, and insulin) were measured by enzyme-linked immunosorbent assay (ELISA) and chemiluminescent microparticle immunoassay (CMIA) at 0, 1, 32, and 52 weeks post-implant following a mixed meal tolerance test. Lipoprotein subclasses were analysed by proton nuclear magnetic resonance (1H NMR) spectrometry. DJBL provoked weight loss, a decrease in fat mass, and an improvement in insulin resistance and hepatic function in most but not all of the patients, but in the long term did not increase gut hormone fasting levels pointing to a combined effect of more than gut parameters alone. Lipidome analysis was done in 10 patients, allowing classification to responders and non-responders by reduction of sLDL-p subfraction; and to further analyse the atherogenic profile. Responders showed an overall more pronounced effect regarding improvement of HbA1c, BMI, and HOMA index.Implantation of a DJBL in obese type 2 diabetes patients does not per se lead to an improvement of the metabolic situation. Further analyses including larger cohorts have to be performed to identify responding patients, to better treat non-responders and to analyse the key effectors.
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Hohensinner P, Baumgartner J, Ebenbauer B, Thaler B, Konstantin D, Kaun C, Stoijkovic S, Fischer M, Maurer G, Huber K, Wojta J. PAI-1 expression renders M2 polarized macrophages proteolytically quiescent. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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146
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Müller MP, Fischer M, Genzwürker H, Henninger A, Böttiger BW. Smartphonebasierte Alarmierung von Ersthelfern bei der Reanimation. Notf Rett Med 2016. [DOI: 10.1007/s10049-016-0220-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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147
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Stratmann B, Krepak Y, Schiffer E, Jarick I, Hauber M, Lee-Barkey YH, Fischer M, Tschoepe D. Beneficial Metabolic Effects of Duodenal Jejunal Bypass Liner for the Treatment of Adipose Patients with Type 2 Diabetes Mellitus: Analysis of Responders and Non-Responders. Horm Metab Res 2016; 48:630-637. [PMID: 27589345 DOI: 10.1055/s-0042-115175] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Implantation of a duodenal-jejunal endoluminal bypass liner (DJBL) has shown to induce weight loss and to improve metabolic parameters. DJBL is a reversible endoduodenal sleeve mimicking duodenal bypass while lacking risks and limitations of bariatric surgery.Effects on metabolic control, body mass parameters, appetite regulation, glucose tolerance, organ health, and lipid profile were determined in 16 morbidly overweight patients with type 2 diabetes mellitus. In addition, relevant hormones (leptin, ghrelin, gastric inhibitory peptide, glucagon-like peptide, and insulin) were measured by enzyme-linked immunosorbent assay (ELISA) and chemiluminescent microparticle immunoassay (CMIA) at 0, 1, 32, and 52 weeks post-implant following a mixed meal tolerance test. Lipoprotein subclasses were analysed by proton nuclear magnetic resonance (1H NMR) spectrometry. DJBL provoked weight loss, a decrease in fat mass, and an improvement in insulin resistance and hepatic function in most but not all of the patients, but in the long term did not increase gut hormone fasting levels pointing to a combined effect of more than gut parameters alone. Lipidome analysis was done in 10 patients, allowing classification to responders and non-responders by reduction of sLDL-p subfraction; and to further analyse the atherogenic profile. Responders showed an overall more pronounced effect regarding improvement of HbA1c, BMI, and HOMA index.Implantation of a DJBL in obese type 2 diabetes patients does not per se lead to an improvement of the metabolic situation. Further analyses including larger cohorts have to be performed to identify responding patients, to better treat non-responders and to analyse the key effectors.
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Reuschel E, Baessler A, Stöllberger C, Finsterer J, Maier L, Fischer M, Poschenrieder F, Heissenhuber F, Kurzidim K, Schepp CP, Badelt G, Seelbach-Göbel B. Interdisciplinary management of left ventricular hypertrabeculation/noncompaction during pregnancy with a wearable defibrillator. Int J Cardiol 2016; 223:154-158. [PMID: 27537747 DOI: 10.1016/j.ijcard.2016.08.097] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Accepted: 08/05/2016] [Indexed: 01/07/2023]
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149
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Nemeth K, Gorog A, Mezey E, Harsing J, Kuroli E, Rady P, Fischer M, Kovacs L, Sillo P, Tyring S, Karpati S. LB807 Detection of hair follicle-associated Merkel Cell Polyomavirus in an immunocompromised host with follicular spicules and alopecia and successful treatment with valganciclovir. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.05.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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150
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Fedorov KG, Zhong L, Pogorzalek S, Eder P, Fischer M, Goetz J, Xie E, Wulschner F, Inomata K, Yamamoto T, Nakamura Y, Di Candia R, Las Heras U, Sanz M, Solano E, Menzel EP, Deppe F, Marx A, Gross R. Displacement of Propagating Squeezed Microwave States. PHYSICAL REVIEW LETTERS 2016; 117:020502. [PMID: 27447495 DOI: 10.1103/physrevlett.117.020502] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Indexed: 06/06/2023]
Abstract
Displacement of propagating quantum states of light is a fundamental operation for quantum communication. It enables fundamental studies on macroscopic quantum coherence and plays an important role in quantum teleportation protocols with continuous variables. In our experiments, we have successfully implemented this operation for propagating squeezed microwave states. We demonstrate that, even for strong displacement amplitudes, there is no degradation of the squeezing level in the reconstructed quantum states. Furthermore, we confirm that path entanglement generated by using displaced squeezed states remains constant over a wide range of the displacement power.
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