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Aigner A, Grittner U, Rolfs A, Norrving B, Siegerink B, Busch M. Welchen Anteil haben etablierte modifizierbare kardiovaskuläre Risikofaktoren am Schlaganfallrisiko bei jüngeren Erwachsenen? DAS GESUNDHEITSWESEN 2018. [DOI: 10.1055/s-0038-1667728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Kasper M, Walscheid K, Laffer B, Bauer D, Busch M, Wildschütz L, Wang B, Loser K, Vogl T, Grajewski RS, Langmann T, Heiligenhaus A. The Phenotype of Monocytes in Anterior Uveitis Depends on the HLA-B27 Status. Front Immunol 2018; 9:1773. [PMID: 30105034 PMCID: PMC6077321 DOI: 10.3389/fimmu.2018.01773] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 07/18/2018] [Indexed: 11/13/2022] Open
Abstract
HLA-B27 is the allele most frequently associated with human anterior uveitis. The majority of HLA-B27-positive [acute anterior uveitis (AAU)] patients develop clinically distinct symptoms with acute symptomatic onset of flare and a recurrent disease course characterized by a massive cellular ocular infiltrate during uveitis relapse. By contrast, uveitis in HLA-B27-negative [idiopathic anterior uveitis (IAU)] patients tends to develop a clinically less fulminant, more chronic, and typically asymptomatic disease course. To analyze systemic immune responses in the different uveitis entities, we analyzed peripheral blood cells by flow cytometry. In addition, as a pro-inflammatory biomarker serum, S100A8/A9 levels were quantified by ELISA from patients with AAU (n = 27) and IAU (n = 21), and in healthy controls (n = 30). Data were obtained either during active uveitis flare or after 3 months of inactivity. IAU patients showed a transiently increased frequency of CD56- and CD163-positive monocytes and of both granulocytic myeloid-derived suppressor cells and Th17 cells during active uveitis. By contrast, AAU patients showed an elevated frequency of monocytes, activated T cells, and elevated S100A8/A9 serum levels during clinically quiescent disease. The differentially regulated response of both innate and adaptive immune cells in the blood may be related to the clinically distinct characteristics of the two different uveitis entities.
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Kasper M, Gabriel D, Möller M, Bauer D, Wildschütz L, Courthion H, Rodriguez-Aller M, Busch M, Böhm MRR, Loser K, Thanos S, Gurny R, Heiligenhaus A. Cyclosporine A-Loaded Nanocarriers for Topical Treatment of Murine Experimental Autoimmune Uveoretinitis. Mol Pharm 2018; 15:2539-2547. [PMID: 29912566 DOI: 10.1021/acs.molpharmaceut.8b00014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In the present study, tissue distribution and the therapeutic effect of topically applied cyclosporine A (CsA)-loaded methoxy-poly(ethylene-glycol)-hexyl substituted poly(lactic acid) (mPEGhexPLA) nanocarriers (ApidSOL) on experimental autoimmune uveitis (EAU) were investigated. The CsA-loaded mPEGhexPLA nanocarrier was tolerated well locally and showed no signs of immediate toxicity after repeated topical application in mice with EAU. Upon unilateral CsA treatment, CsA accumulated predominantly in the corneal and sclera-choroidal tissue of the treated eye and in lymph nodes (LN). This regimen reduced EAU severity in treated eyes compared to PBS-treated controls. This improvement was accompanied by reduced T-cell count, T-cell proliferation, and IL-2 secretion of cells from ipsilateral LN. In conclusion, topical treatment with CsA-loaded mPEGhexPLA nanocarriers significantly improves the outcome of EAU.
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Häckel S, Stein F, Wolf G, Stein G, Busch M. Qualität der Blutdruckeinstellung in der hausärztlichen Praxis unter Verwendung der 24-Stunden-Langzeitblutdruckmessung – eine retrospektive monozentrische Querschnittsstudie. Dtsch Med Wochenschr 2018; 113:e108-e116. [DOI: 10.1055/a-0589-7580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Zusammenfassung
Einleitung Die Diagnostik und Therapie der arteriellen Hypertonie ist eine kontinuierliche Herausforderung in Hausarztpraxen. Ziel dieser Arbeit ist es, die Art und Effektivität der Blutdruckeinstellung bei Patienten mit bekannter arterieller Hypertonie in einer hausärztlichen Praxis unter strikter Verwendung der Office- (OBPM) und ambulanten Langzeit- (ABPM) Blutdruckmessung zu analysieren.
Methoden Retrospektiv wurden 283 Patienten (90 % aller regelmäßig betreuten Hypertoniker) hinsichtlich des Erreichens der Zielblutdruckwerte in ABPM und OBPM der zurückliegenden 1 bis 2 Jahre untersucht. Die Zielwerte entsprachen den geltenden ESH-Empfehlungen (Office-Blutdruck < 140/90 mmHg, 24-h-Mittelwert der ABPM < 130/80 mmHg).
Ergebnisse Der OBPM aller Patienten (Alter: 68 ± 12,7, 48 % Frauen) lag bei 132 ± 11,8/80 ± 4,2 mmHg, der 24-h-ABPM betrug 128 ± 10,7/74 ± 7,9 mmHg. Eine isolierte Praxishypertonie hatten 11,3 %, eine maskierte Hypertonie 21,9 %. Nur 33,9 % wiesen ein physiologisches Dippingverhalten auf (49,1 % Non-Dipper, 13,8 % Reverse-Dipper und 3,2 % Extrem-Dipper). Die Blutdruck-Kontrollrate (Erreichen des Zielblutdruckes) betrug 67,8 % in der OBPM und 57,2 % in der 24-h-ABPM. 23,0 % wurden mit einer Monotherapie, 37,5 % mit Zweifach-Kombination, 19,8 % mittels Dreifach-Kombination und 14,5 % mit > 3 Antihypertensiva behandelt, 83,9 % erhielten RAS-Blocker. Der OBPM-Zielwert wurde bei 75,0 % unter einer Dreifach- und 71,7 % unter einer Zweifach-Kombination erzielt, der 24-h-ABPM-Zielwert zumeist bei Patienten, die nur einer Monotherapie bedurften (66,2 %) oder mittels Zweifachtherapie behandelt wurden (60,4 %), ansonsten < 60 % Zielwerterreichung.
Schlussfolgerung In der untersuchten Hausarztpraxis war die Therapiekontrolle von Patienten mit therapierter arterieller Hypertonie mehrheitlich leitliniengerecht und besser als in der Literatur beschrieben. Die parallele und konsequente Durchführung von OBPM und ABPM sowie die hohe Verschreibungsrate von RAS-Blockern und empfohlenen Kombinationstherapien könnte hierfür der Schlüssel sein.
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Alvis SI, Arnquist IJ, Avignone FT, Barabash AS, Barton CJ, Bertrand FE, Brudanin V, Busch M, Buuck M, Caldwell TS, Chan YD, Christofferson CD, Chu PH, Cuesta C, Detwiler JA, Dunagan C, Efremenko Y, Ejiri H, Elliott SR, Gilliss T, Giovanetti GK, Green MP, Gruszko J, Guinn IS, Guiseppe VE, Haufe CR, Hehn L, Henning R, Hoppe EW, Howe MA, Konovalov SI, Kouzes RT, Lopez AM, Martin RD, Massarczyk R, Meijer SJ, Mertens S, Myslik J, O'Shaughnessy C, Othman G, Pettus W, Poon AWP, Radford DC, Rager J, Reine AL, Rielage K, Robertson RGH, Ruof NW, Shanks B, Shirchenko M, Suriano AM, Tedeschi D, Varner RL, Vasilyev S, Vorren K, White BR, Wilkerson JF, Wiseman C, Xu W, Yakushev E, Yu CH, Yumatov V, Zhitnikov I, Zhu BX. First Limit on the Direct Detection of Lightly Ionizing Particles for Electric Charge as Low as e/1000 with the Majorana Demonstrator. PHYSICAL REVIEW LETTERS 2018; 120:211804. [PMID: 29883176 DOI: 10.1103/physrevlett.120.211804] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 04/23/2018] [Indexed: 06/08/2023]
Abstract
The Majorana Demonstrator is an ultralow-background experiment searching for neutrinoless double-beta decay in ^{76}Ge. The heavily shielded array of germanium detectors, placed nearly a mile underground at the Sanford Underground Research Facility in Lead, South Dakota, also allows searches for new exotic physics. Free, relativistic, lightly ionizing particles with an electrical charge less than e are forbidden by the standard model but predicted by some of its extensions. If such particles exist, they might be detected in the Majorana Demonstrator by searching for multiple-detector events with individual-detector energy depositions down to 1 keV. This search is background-free, and no candidate events have been found in 285 days of data taking. New direct-detection limits are set for the flux of lightly ionizing particles for charges as low as e/1000.
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Yu CH, Alvis S, Arnquist I, Avignone F, Barabash A, Barton C, Bertrand F, Bode T, Brudanin V, Busch M, Buuck M, Caldwell T, Chan YD, Christofferson C, Chu PH, Cuesta C, Detwiler J, Dunagan C, Efremenko Y, Ejiri H, Elliott S, Gilliss T, Giovanetti G, Green M, Gruszko J, Guinn I, Guiseppe V, Haufe C, Hehn L, Henning R, Hoppe E, Howe M, Keeter K, Kidd M, Konovalov S, Kouzes R, Lopez A, Martin R, Massarczyk R, Meijer S, Mertens S, Myslik J, Othman G, Pettus W, Poon A, Radford D, Rager J, Reine A, Rielage K, Ruof N, Shanks B, Shirchenko M, Suriano A, Tedeschi D, Varner R, Vasilyev S, Vetter K, Vorren K, White B, Wilkerson J, Wiseman C, Xu W, Yakushev E, Yumatov V, Zhitnikov I, Zhu B. The Majorana Demonstrator Status and Preliminary Results. EPJ WEB OF CONFERENCES 2018. [DOI: 10.1051/epjconf/201817801006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The Majorana Collaboration is using an array of high-purity Ge detectors to search for neutrinoless double-beta decay in 76Ge. Searches for neutrinoless double-beta decay are understood to be the only viable experimental method for testing the Majorana nature of the neutrino. Observation of this decay would imply violation of lepton number, that neutrinos are Majorana in nature, and provide information on the neutrino mass. The Majorana Demonstrator comprises 44.1 kg of p-type point-contact Ge detectors (29.7 kg enriched in 76Ge) surrounded by a low-background shield system. The experiment achieved a high efficiency of converting raw Ge material to detectors and an unprecedented detector energy resolution of 2.5 keV FWHM at Qββ. The Majorana collaboration began taking physics data in 2016. This paper summarizes key construction aspects of the Demonstrator and shows preliminary results from initial data.
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Kronbichler A, Shin JI, Lee K, Nakagomi D, Quintana L, Busch M, Craven A, Luqmani R, Merkel P, Mayer G, Jayne D, Watts R. FP155PREDICTORS OF RENAL INVOLVEMENT IN ANCA ASSOCIATED VASCULITIS. Nephrol Dial Transplant 2018. [DOI: 10.1093/ndt/gfy104.fp155] [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] Open
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108
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Müller N, Lehmann T, Günster C, Müller UA, Wolf G, Busch M. Inzidenz schwerer Hypoglykämien bei Patienten mit chronischer Nierenerkrankung (CKD) 2006 und 2011. DIABETOL STOFFWECHS 2018. [DOI: 10.1055/s-0038-1641857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Busch M, Lehmann T, Günster C, Wolf G, Müller UA, Müller N. Entwicklung der Therapie des Diabetes mellitus Typ 2 in Bezug zur Prävalenz einer chronischen Nierenerkrankung. DIABETOL STOFFWECHS 2018. [DOI: 10.1055/s-0038-1641861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Aalseth CE, Abgrall N, Aguayo E, Alvis SI, Amman M, Arnquist IJ, Avignone FT, Back HO, Barabash AS, Barbeau PS, Barton CJ, Barton PJ, Bertrand FE, Bode T, Bos B, Boswell M, Bradley AW, Brodzinski RL, Brudanin V, Busch M, Buuck M, Caldwell AS, Caldwell TS, Chan YD, Christofferson CD, Chu PH, Collar JI, Combs DC, Cooper RJ, Cuesta C, Detwiler JA, Doe PJ, Dunmore JA, Efremenko Y, Ejiri H, Elliott SR, Fast JE, Finnerty P, Fraenkle FM, Fu Z, Fujikawa BK, Fuller E, Galindo-Uribarri A, Gehman VM, Gilliss T, Giovanetti GK, Goett J, Green MP, Gruszko J, Guinn IS, Guiseppe VE, Hallin AL, Haufe CR, Hehn L, Henning R, Hoppe EW, Hossbach TW, Howe MA, Jasinski BR, Johnson RA, Keeter KJ, Kephart JD, Kidd MF, Knecht A, Konovalov SI, Kouzes RT, LaFerriere BD, Leon J, Lesko KT, Leviner LE, Loach JC, Lopez AM, Luke PN, MacMullin J, MacMullin S, Marino MG, Martin RD, Massarczyk R, McDonald AB, Mei DM, Meijer SJ, Merriman JH, Mertens S, Miley HS, Miller ML, Myslik J, Orrell JL, O'Shaughnessy C, Othman G, Overman NR, Perumpilly G, Pettus W, Phillips DG, Poon AWP, Pushkin K, Radford DC, Rager J, Reeves JH, Reine AL, Rielage K, Robertson RGH, Ronquest MC, Ruof NW, Schubert AG, Shanks B, Shirchenko M, Snavely KJ, Snyder N, Steele D, Suriano AM, Tedeschi D, Tornow W, Trimble JE, Varner RL, Vasilyev S, Vetter K, Vorren K, White BR, Wilkerson JF, Wiseman C, Xu W, Yakushev E, Yaver H, Young AR, Yu CH, Yumatov V, Zhitnikov I, Zhu BX, Zimmermann S. Search for Neutrinoless Double-β Decay in ^{76}Ge with the Majorana Demonstrator. PHYSICAL REVIEW LETTERS 2018; 120:132502. [PMID: 29694188 DOI: 10.1103/physrevlett.120.132502] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/09/2018] [Indexed: 06/08/2023]
Abstract
The Majorana Collaboration is operating an array of high purity Ge detectors to search for neutrinoless double-β decay in ^{76}Ge. The Majorana Demonstrator comprises 44.1 kg of Ge detectors (29.7 kg enriched in ^{76}Ge) split between two modules contained in a low background shield at the Sanford Underground Research Facility in Lead, South Dakota. Here we present results from data taken during construction, commissioning, and the start of full operations. We achieve unprecedented energy resolution of 2.5 keV FWHM at Q_{ββ} and a very low background with no observed candidate events in 9.95 kg yr of enriched Ge exposure, resulting in a lower limit on the half-life of 1.9×10^{25} yr (90% C.L.). This result constrains the effective Majorana neutrino mass to below 240-520 meV, depending on the matrix elements used. In our experimental configuration with the lowest background, the background is 4.0_{-2.5}^{+3.1} counts/(FWHM t yr).
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Brix SR, Noriega M, Herden EM, Goldmann B, Langbehn U, Busch M, Jabs WJ, Steinmetz OM, Panzer U, Huber TB, Stahl RAK, Wiech T. Organisation of lymphocytic infiltrates in ANCA-associated glomerulonephritis. Histopathology 2018; 72:1093-1101. [PMID: 29453894 DOI: 10.1111/his.13487] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 02/12/2018] [Indexed: 12/17/2022]
Abstract
AIMS Renal involvement in anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis contributes to significant morbidity and mortality in patients. In chronic inflammation, B cells are recruited to the inflamed tissue and organised lymphoid structures have been described in several autoimmune diseases. The aim of this study was to correlate the lymphoid organisation in renal biopsies with renal outcome in ANCA-associated glomerulonephritis (GN). METHODS AND RESULTS We investigated 112 renal biopsies from patients with newly diagnosed ANCA-associated necrotising GN. We identified four different levels of the intrarenal organisation of lymphocytes: T cells without B cells, scattered B and T cells, clustered lymphocytic infiltrates and nodular compartmentally arranged B and T cell aggregates. Almost half the patients showed clusters of B and T lymphocytes in their biopsies. In 15 of these biopsies, a higher degree of organisation with lymphocytic compartments was detected. Inflammatory cell organisation was associated with renal failure, but not with tubular atrophy and interstitial fibrosis. Patients with organised lymphocytic infiltrates in their biopsy had worse renal function during follow-up and were more likely to develop end stage renal disease. CONCLUSIONS In the present study, we show that the renal lymphocytic organisation is associated with renal outcome in ANCA-associated GN. The organisation of the lymphocytic infiltrate may be a morphological correlate of a perpetual and exaggerated inflammation in renal ANCA disease. Classifying the lymphocytic infiltrate could help to predict renal outcome, and might therefore be used for individualised adjustments in the intensity and duration of immunosuppressive therapy.
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Busch M, Wasmuth S, Spital G, Lommatzsch A, Pauleikhoff D. Activation of the ERK1/2-MAPK Signaling Pathway by Complement Serum in UV-POS-Pretreated ARPE-19 Cells. Ophthalmologica 2018; 239:215-224. [PMID: 29486466 DOI: 10.1159/000486404] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 12/18/2017] [Indexed: 11/19/2022]
Abstract
BACKGROUND Retinal pigment epithelial (RPE) cells undergo functional changes upon complement stimulation, which play a role in the pathogenesis of age-related macular degeneration (AMD). These effects are in part enhanced by pretreating ARPE-19 cells with UV-irradiated photoreceptor outer segments (UV-POS) in vitro. The aim of this study was to investigate the effects of human complement serum (HCS) treatment on p44/42 mitogen-activated protein kinase (extracellular signal-regulated kinase 1/2 [ERK1/2]) activation in ARPE-19 cells pretreated with UV-POS. METHODS UV-POS-pretreated ARPE-19 cells were stimulated with 5% HCS or heat-inactivated HCS (HI-HCS) as a control. Pro tein expression of phosphorylated (activated) ERK1/2, total ERK1/2, Bax, and Bcl-2 was analyzed by Western blotting. Cell culture supernatants were analyzed for IL-6, IL-8, MCP-1, and VEGF by enzyme-linked immunosorbent assay (ELISA). Furthermore, extra- and intracellular reactive oxygen species (ROS) were determined. RESULTS The amount of phosphorylated ERK1/2 was increased in UV-POS-pretreated ARPE-19 cells, especially in combination with HCS stimulation, compared to non-pretreated ARPE-19 cells incubated with HCS alone or HI-HCS. The same observation was made for Bax and Bcl-2 expression. Furthermore, an increase in extra- and intracellular ROS was detected in UV-POS-pretreated ARPE-19 cells. The ELISA data showed that the production of IL-6, IL-8, and MCP-1 tended to increase in response to HCS in both UV-POS-pretreated and non-pretreated ARPE-19 cells. CONCLUSIONS Our data imply that ERK1/2 activation in ARPE-19 cells may represent a response mechanism to cellular and oxidative stress, associated with apoptosis-regulating factors such as Bax and Bcl-2, which might play a role in AMD, while ERK1/2 seems not to represent the crucial signaling pathway mediating the functional changes in RPE cells in response to complement stimulation.
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Jungi S, Fu X, Segiser A, Busch M, Most P, Fiedler M, Carrel T, Tevaearai Stahel H, Longnus SL, Most H. Enhanced Cardiac S100A1 Expression Improves Recovery from Global Ischemia-Reperfusion Injury. J Cardiovasc Transl Res 2018; 11:236-245. [PMID: 29392537 DOI: 10.1007/s12265-018-9788-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 01/08/2018] [Indexed: 12/14/2022]
Abstract
Gene-targeted therapy with the inotropic Ca2 + -sensor protein S100A1 rescues contractile function in post-ischemic heart failure and is being developed towards clinical trials. Its proven beneficial effect on cardiac metabolism and mitochondrial function suggests a cardioprotective effect of S100A1 in myocardial ischemia-reperfusion injury (IRI). Fivefold cardiomyocyte-specific S100A1 overexpressing, isolated rat hearts perfused in working mode were subjected to 28 min ischemia (37 °C) followed by 60 min reperfusion. S100A1 overexpressing hearts showed superior hemodynamic recover: Left ventricular pressure recovered to 57 ± 7.3% of baseline compared to 51 ± 4.6% in control (p = 0.025), this effect mirrored in LV work and dP/dt(max). Troponin T and lactate dehydrogenase was decreased in the S100A1 group, as well as FoxO pro-apoptotic transcription factor, indicating less tissue necrosis, whereas phosphocreatine content was higher after reperfusion. This is the first report of a cardioprotective effect of S100A1 overexpression in a global IRI model.
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Kasper M, Gabriel D, Möller M, Bauer D, Wildschütz L, Courthion H, Böhm MRR, Busch M, Loser K, Thanos S, Gurny R, Heiligenhaus A. Novel everolimus-loaded nanocarriers for topical treatment of murine experimental autoimmune uveoretinitis (EAU). Exp Eye Res 2018; 168:49-56. [PMID: 29326066 DOI: 10.1016/j.exer.2018.01.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 10/17/2017] [Accepted: 01/05/2018] [Indexed: 01/14/2023]
Abstract
In the present study, therapeutic effect of topically applied everolimus (EV)-loaded methoxy-poly(ethylene-glycol)-hexyl substituted poly (lactic acid) (mPEGhexPLA) nanocarriers on experimental autoimmune uveoretinitis (EAU) were investigated. EAU was induced in B10.RIII mice via immunization with human interphotoreceptor retinoid-binding protein peptide 161-180 (hIRBPp161-180) in complete Freund's adjuvant. Everolimus-loaded mPEGhexPLA (EV/mPEGhexPLA) nanocarriers were prepared by using a solvent evaporation method. On days 12-21 postimmunization (p.i.), the right eyes were treated five times daily either with 10 μl of 0.5% everolimus formulation or PBS (control). The EAU score of the eyes was determined histologically. On day 21 p.i., the peripheral immune responses were measured in serum, cervical lymph nodes (LN), and spleens via hIRBPp161-180-specific serum antibodies, cytokine secretion (ELISA), lymphocyte proliferation, and FoxP3+ regulatory T cells (Treg; flow cytometry). Compared to the PBS-treated mice, unilateral topical everolimus treatment significantly reduced EAU severity in both eyes (p < .05). The treatment reduced the antigen (Ag)-specific hIRBPp161-180-induced proliferation (p < .05), IL-2, IL-17, and IFN-γ secretion from cells isolated from the left and right cervical LN (p < .05). Under everolimus treatment, IL-10 secretion and CD4+CD25+FoxP3+ Treg frequency from cervical LN were enhanced. The proliferative response and cytokine secretion as well as the frequency of splenic Treg were almost unchanged. Topical administration of an everolimus formulation improved EAU in both eyes. The effect might also be related to systemic immunosuppressive effects, as several systemic cellular immune responses were influenced.
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Weiss BG, Söchting F, Bertlich M, Busch M, Blum J, Ihler F, Canis M. An Objective Method to Determine the Electrically Evoked Stapedius Reflex Threshold During Cochlea Implantation. Otol Neurotol 2018; 39:e5-e11. [DOI: 10.1097/mao.0000000000001611] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Stone M, Rosenbloom D, Bacchetti P, Deng X, Busch M, Dimapasoc M, Keating S, Richman D, Mellors J, Deeks S, Siliciano J, Chomont N, Ptak R. Next generation viral outgrowth assays as proxies for classic QVOA to measure HIV-1 reservoir size. J Virus Erad 2017. [DOI: 10.1016/s2055-6640(20)30599-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Gerth J, Schleussner E, Kentouche K, Busch M, Seifert M, Wolf G. Pregnancy-associated thrombotic thrombocytopenic purpura. Thromb Haemost 2017. [DOI: 10.1160/th07-12-0739] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
SummaryThrombocytopenia during pregnancy is a common diagnostic and management problem. Several differential diagnosis must be considered including manifestations of thrombotic thrombocytopenic purpura (TTP). We report here on a case of a 21-year-old pregnant woman who presented initially severe thrombocytopenia (8 Gpt/l) in the 20th+1 week of gestation. The patient had an antibody against ADAMTS13, and enzyme activity was <5%. Immediate plasmapheresis treatment was initiated, followed by plasma infusions, and again plasmapheresis. A male neonate was delivered by caesarean section in the 32nd week of gestation. The child had an uncomplicated postnatal development. After delivery, the mother’s platelet count and ADAMTS13 activity increased to normal values. This case shows interesting aspects of TTP in pregnancy and a close cooperation between obstetricians, nephrologists and pediatricians is necessary for a successful outcome of the pregnancy.
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Kroll LE, Baumert J, Busch M, Scheidt-Nave C, Lampert T, Hoebel J. Estimating social inequality in mortality and life expectancy in absence of register data in Germany. Eur J Public Health 2017. [DOI: 10.1093/eurpub/ckx189.158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Rücker V, O'Flaherty M, Hillmann S, Wiedmann S, Busch M, Heuschmann PU. Recent regional trends in mortality of stroke subtypes in Germany. DAS GESUNDHEITSWESEN 2017. [DOI: 10.1055/s-0037-1605858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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120
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Busch M, Höbel J, Lampert T. Social inequalities in the burden of stroke in Germany: cross-sectional analysis of a nationwide population-based health survey. DAS GESUNDHEITSWESEN 2017. [DOI: 10.1055/s-0037-1606017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Lechte C, Kasparek W, Plaum B, Zeitler A, Erckmann V, Laqua H, Schneider N, Weissgerber M, Bechtold A, Busch M, Szepaniak B. Remote-Steering Antennas for 140 GHz Electron Cyclotron Heating of the Stellarator W7-X. EPJ WEB OF CONFERENCES 2017. [DOI: 10.1051/epjconf/201714704004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Busch M, Herzmann C, Kallert S, Zimmermann A, Höfer C, Mayer D, Zenk SF, Muche R, Lange C, Bloom BR, Modlin RL, Stenger S. Lipoarabinomannan-Responsive Polycytotoxic T Cells Are Associated with Protection in Human Tuberculosis. Am J Respir Crit Care Med 2017; 194:345-55. [PMID: 26882070 DOI: 10.1164/rccm.201509-1746oc] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
RATIONALE The development of host-targeted, prophylactic, and therapeutic interventions against tuberculosis requires a better understanding of the immune mechanisms that determine the outcome of infection with Mycobacterium tuberculosis. OBJECTIVES To identify T-cell-dependent mechanisms that are protective in tuberculosis. METHODS Multicolor flow cytometry, cell sorting and growth inhibition assays were employed to compare the frequency, phenotype and function of T lymphocytes from bronchoalveolar lavage or the peripheral blood. MEASUREMENTS AND MAIN RESULTS At two independent study sites, bronchoalveolar lavage cells from donors with latent tuberculosis infection limited the growth of virulent Mycobacterium tuberculosis more efficiently than those in patients who developed disease. Unconventional, glycolipid-responsive T cells contributed to reduced mycobacterial growth because antibodies to CD1b inhibited this effect by 55%. Lipoarabinomannan was the most potent mycobacterial lipid antigen (activation of 1.3% T lymphocytes) and activated CD1b-restricted T cells that limited bacterial growth. A subset of IFN-γ-producing lipoarabinomannan-responsive T cells coexpressed the cytotoxic molecules perforin, granulysin, and granzyme B, which we termed polycytotoxic T cells. Taking advantage of two well-defined cohorts of subjects latently infected with Mycobacterium tuberculosis or patients who developed active disease after infection, we found a correlation between the frequency of polycytotoxic T cells and the ability to control infection (latent tuberculosis infection, 62%; posttuberculosis patients, 26%). CONCLUSIONS Our data define an unconventional CD8(+) T-cell subset (polycytotoxic T cells) that is based on antigen recognition and function. The results link clinical and mechanistic evidence that glycolipid-responsive, polycytotoxic T cells contribute to protection against tuberculosis.
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Klein-Wiele O, Garmer M, Barbone G, Urbien R, Busch M, Kara K, Schäfer H, Schulte-Hermes M, Hailer B, Grönemeyer D. Deactivation vs. asynchronous pacing - prospective evaluation of a protocol for rhythm management in patients with magnetic resonance conditional pacemakers undergoing adenosine stress cardiovascular magnetic resonance imaging. BMC Cardiovasc Disord 2017; 17:142. [PMID: 28577544 PMCID: PMC5457583 DOI: 10.1186/s12872-017-0579-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 05/25/2017] [Indexed: 01/18/2023] Open
Abstract
Background Cardiovascular Magnetic Resonance (CMR) imaging with adenosine stress is an important diagnostic tool in patients with known or suspected coronary artery disease (CAD). However, the method is not yet established for CAD patients with pacemakers (PM) in clinical practice. A possible reason is that no recommendations exist for PM setting (paused pacing or asynchronous mode) during adenosine stress. We elaborated a protocol for rhythm management in clinical routine for PM patients that considers heart rate changes under adenosine using a test infusion of adenosine in selected patients. Methods 47 consecutive patients (mean age 72.3 ± 10,0 years) with MR conditional PM and known or suspected CAD who underwent CMR in clinical routine were studied in this prospective observational study. PM indications were sinus node dysfunction (SND, n = 19; 40,4%), atrioventricular (AV) block (n = 26; 55.3%) and bradyarrhythmia in permanent atrial fibrillation (AF, n = 2; 4.3%). In patients with SND, normal AV-conduction and resting HR >45 bpm at the time of CMR and in AF the PM was deactivated for the scan. In intermittent AV-block a test infusion of adenosine was given prior to the scan. All patients with permanent higher degree sinuatrial or AV-block or deterioration of AV-conduction in the adenosine test were paced asynchronously during CMR, in patients with preserved AV-conduction under adenosine the pacemaker was deactivated. CMR protocol included cine imaging, adenosine stress perfusion and late gadolinium enhancement. Results The adenosine test was able to differentiate between mandatory PM stimulation during CMR and safe deactivation of the device. In patients with permanent sinuatrial or AV-block (n = 11; 23.4%) or deterioration of AV conduction in the adenosine test (n = 5, 10.6%) asynchronous pacing above resting heart rate did not interfere with intrinsic rhythm, no competitive stimulation was seen during the scan. 10 of 15 (66,7%) patients with intermittent AV-block showed preserved AV-conduction under adenosine. As in SND and AF deactivation of the PM showed to be safe during CMR, no bradycardia was observed. Conclusion Our protocol for rhythm management during adenosine stress CMR showed to be feasible and safe and may be recommended for pacemaker patients undergoing routine CMR.
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Veltmann C, Woehrle A, Busch M, Elsaesser A, Kleemann T, Geller JC. 657Reduction of inappropriate shocks of ICDs with enhanced SVT discriminators. First results from the ReduceIT study. Europace 2017. [DOI: 10.1093/ehjci/eux145.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Jahn L, Rüster C, Winkler Y, Grimm MO, Wolf G, Busch M. SP770FACTORS AND OUTCOME OF DELAYED GRAFT FUNCTION AFTER KIDNEY TRANSPLANTATION OVER A PERIOD OF 8 YEARS - A SINGLE CENTER STUDY. Nephrol Dial Transplant 2017. [DOI: 10.1093/ndt/gfx157.sp770] [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] Open
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