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A. Steffen · SciRah

Researcher profile · Semantic Scholar

A. Steffen

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A. Steffen — researcher profile on SciRah

h-index: 22
Works: 37
Citations: 2,168

Most-cited papers

Transplantation of human islets without immunosuppression
B. Ludwig, A. Reichel, A. Steffen, B. Zimerman +11 more
2013Proceedings of the National Academy of Sciences of the United States of America264 citations Open access
Semantic Scholar
Differential in vivo and in vitro expression of vascular endothelial growth factor (VEGF)-C and VEGF-D in tumors and its relationship to lymphatic metastasis in immunocompetent rats.
J. Krishnan, V. Kirkin, A. Steffen, M. Hegen +4 more
2003Cancer Research193 citations
Semantic Scholar
Positive feedback regulation between MMP-9 and VEGF in human RPE cells.
Margrit Hollborn, C. Stathopoulos, A. Steffen, P. Wiedemann +2 more
2007Investigative Ophthalmology and Visual Science192 citations Open access
Semantic Scholar
Improvement of islet function in a bioartificial pancreas by enhanced oxygen supply and growth hormone releasing hormone agonist
B. Ludwig, A. Rotem, Janine Schmid, G. Weir +21 more
2012Proceedings of the National Academy of Sciences of the United States of America176 citations Open access
Semantic Scholar
Characterization of indolinones which preferentially inhibit VEGF-C- and VEGF-D-induced activation of VEGFR-3 rather than VEGFR-2.
V. Kirkin, Ralph Mazitschek, J. Krishnan, A. Steffen +4 more
2001European Journal of Biochemistry115 citations Open access
Semantic Scholar
A Novel Device for Islet Transplantation Providing Immune Protection and Oxygen Supply
B. Ludwig, B. Zimerman, A. Steffen, K. Yavriants +13 more
2010Hormone and metabolic research = Hormon- und Stoffwechselforschung = Hormones et metabolisme111 citations
Semantic Scholar
The Efficacy of an Immunoisolating Membrane System for Islet Xenotransplantation in Minipigs
Tova Neufeld, B. Ludwig, U. Barkai, G. Weir +19 more
2013PLoS ONE110 citations Open access
Semantic Scholar
Favorable outcome of experimental islet xenotransplantation without immunosuppression in a nonhuman primate model of diabetes
B. Ludwig, S. Ludwig, A. Steffen, Y. Knauf +19 more
2017Proceedings of the National Academy of Sciences of the United States of America108 citations Open access
Semantic Scholar
Apocynin-induced vasodilation involves Rho kinase inhibition but not NADPH oxidase inhibition.
Torsten Schlüter, Antje C. Steinbach, A. Steffen, R. Rettig +1 more
2008Cardiovascular Research94 citations Open access
Semantic Scholar
CD44 expression and regulation during mammary gland development and function.
Lionel Hebbard, A. Steffen, V. Zawadzki, C. Fieber +5 more
2000Journal of Cell Science92 citations
Semantic Scholar
Agonist of growth hormone-releasing hormone as a potential effector for survival and proliferation of pancreatic islets
B. Ludwig, C. Ziegler, A. Schally, C. Richter +7 more
2010Proceedings of the National Academy of Sciences of the United States of America84 citations Open access
Semantic Scholar
Quantification of Basal and Stimulated ROS Levels as Predictors of Islet Potency and Function
B. Armann, M. S. Hanson, E. Hatch, A. Steffen +1 more
2007American Journal of Transplantation83 citations Open access
Semantic Scholar
Vessel Network Architecture of Adult Human Islets Promotes Distinct Cell-Cell Interactions In Situ and Is Altered After Transplantation
C. Cohrs, Chun-Guang Chen, S. R. Jahn, Julia Stertmann +11 more
2017Endocrinology75 citations
Semantic Scholar
Tamoxifen-Independent Recombination in the RIP-CreER Mouse
Yanmei Liu, Jakob Suckale, J. Masjkur, Maria Grazia Magro +3 more
2010PLoS ONE69 citations Open access
Semantic Scholar
Long-term viability and function of transplanted islets macroencapsulated at high density are achieved by enhanced oxygen supply
Y. Evron, C. Colton, B. Ludwig, G. Weir +16 more
2018Scientific Reports66 citations Open access
Semantic Scholar
Modulation of pancreatic islets-stress axis by hypothalamic releasing hormones and 11β-hydroxysteroid dehydrogenase
Janine Schmid, B. Ludwig, A. Schally, A. Steffen +9 more
2011Proceedings of the National Academy of Sciences of the United States of America56 citations Open access
Semantic Scholar
Islet Versus Pancreas Transplantation in Type 1 Diabetes: Competitive or Complementary?
B. Ludwig, S. Ludwig, A. Steffen, H. Saeger +1 more
2010Current Diabetes Reports46 citations
Semantic Scholar
Developmental endothelial locus-1 modulates platelet-monocyte interactions and instant blood-mediated inflammatory reaction in islet transplantation
I. Kourtzelis, Klára Kotlabová, Jong-Hyung Lim, I. Mitroulis +13 more
2015Thrombosis and Haemostasis41 citations Open access
Semantic Scholar
P2Y1 Receptor Signaling Contributes to High Salt-Induced Priming of the NLRP3 Inflammasome in Retinal Pigment Epithelial Cells
Philipp Prager, Margrit Hollborn, A. Steffen, P. Wiedemann +2 more
2016PLoS ONE35 citations Open access
Semantic Scholar
Effects of thrombin on RPE cells are mediated by transactivation of growth factor receptors.
Margrit Hollborn, C. Petto, A. Steffen, Susanne Trettner +4 more
2009Investigative Ophthalmology and Visual Science32 citations
Semantic Scholar
Islet Transplantation at the Dresden Diabetes Center: Five Years’ Experience
B. Ludwig, A. Reichel, A. Kruppa, S. Ludwig +3 more
2014Hormone and Metabolic Research26 citations Open access
Semantic Scholar
Impaired insulin turnover in islets from type 2 diabetic patients
F. Ehehalt, K. Knoch, Katja Erdmann, C. Krautz +11 more
2010Islets24 citations Open access
Semantic Scholar
CD44 variant exon v5 encodes a tyrosine that is sulphated.
Jonathan P. Sleeman, Ursula Rahmsdorf, A. Steffen, H. Ponta +1 more
1998European Journal of Biochemistry18 citations Open access
Semantic Scholar
Diabetes induction by total pancreatectomy in minipigs with simultaneous splenectomy: a feasible approach for advanced diabetes research
S. Heinke, B. Ludwig, U. Schubert, Janine Schmid +4 more
2016Xenotransplantation14 citations
Semantic Scholar
Functional assessment of automatically sorted pancreatic islets using large particle flow cytometry
A. Steffen, B. Ludwig, C. Krautz, S. Bornstein +1 more
2011Islets13 citations Open access
Semantic Scholar
Flow Cytometric Quantification of Glucose-Stimulated β-Cell Metabolic Flux Can Reveal Impaired Islet Functional Potency
M. S. Hanson, A. Steffen, J. S. Danobeitia, B. Ludwig +1 more
2008Cell Transplantation11 citations Open access
Semantic Scholar
Production of high‐quality islets from goettingen minipigs: Choice of organ preservation solution, donor pool, and optimal cold ischemia time
A. Steffen, T. Kiss, Janine Schmid, U. Schubert +5 more
2017Xenotransplantation10 citations
Semantic Scholar
Flow cytometric quantification of glucose-stimulated beta-cell metabolic flux can reveal impaired islet functional potency.
M. S. Hanson, A. Steffen, J. S. Danobeitia, B. Ludwig +1 more
2008Cell Transplantation7 citations
Semantic Scholar
Islet transplantation in type 1 diabetes mellitus: single center follow-up on 10 patients
B. Ludwig, A. Reichel, A. Steffen, S. Ludwig +3 more
20132 citations
Semantic Scholar
Transplanting allo‐islets without immunosuppression
B. Ludwig, A. Reichel, A. Steffen, B. Zimmermann +9 more
20141 citations
Semantic Scholar
P.114: Altered Glucose Response in Human Beta Cells Following Modulation of Muscarinic Receptor.
A. Steffen, N. de Graaf, M. Engelse, E. D. de Koning
2021Transplantation0 citations Open access
Semantic Scholar
Islet autotransplantation after complete rescue pancreatectomy for complications of upper GI-tract surgery
S. Ludwig, B. Ludwig, A. Steffen, R. Grützmann +2 more
20140 citations
Semantic Scholar
Extended oxygen consumption assay reveals size dependent differences of rat islets of Langerhans
A. Steffen, K. Knoch, S. Bornstein, B. Ludwig +1 more
20130 citations
Semantic Scholar
New Avenue in Islet Transplantation by Macroencapsulation and Islet Pre-Treatment with Growth Hormone Releasing Hormone Agonist: 1585
B. Ludwig, A. Rotem, Janine Schmid, A. Steffen +4 more
20120 citations Open access
Semantic Scholar
Reply to Liu et al.: Hypothalamic control of islets
Janine Schmid, B. Ludwig, A. Schally, A. Steffen +9 more
2011Proceedings of the National Academy of Sciences of the United States of America0 citations Open access
Semantic Scholar
The influence of oxygen supply on metabolism of neural cells cultured on a gas‐permeable PTFE foil
C. Mauth, S. Pavlica, A. Deiwick, A. Steffen +1 more
2010Biotechnology progress (Print)0 citations
Semantic Scholar
MIT Open Access Articles The Efficacy of an Immunoisolating Membrane System for Islet Xenotransplantation in Minipigs
Mit Open, Access Articles, Tova Neufeld, B. Ludwig +21 more
0 citations
Semantic Scholar

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