Search Results - "PARNAUD, Geraldine"
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Blockade of β1 Integrin–Laminin-5 Interaction Affects Spreading and Insulin Secretion of Rat β-Cells Attached on Extracellular Matrix
Published in Diabetes (New York, N.Y.) (01-05-2006)“…Blockade of β1 Integrin–Laminin-5 Interaction Affects Spreading and Insulin Secretion of Rat β-Cells Attached on Extracellular Matrix Geraldine Parnaud 1 , Eva…”
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Survival of free and encapsulated human and rat islet xenografts transplanted into the mouse bone marrow
Published in PloS one (13-03-2014)“…Bone marrow was recently proposed as an alternative and potentially immune-privileged site for pancreatic islet transplantation. The aim of the present study…”
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Rab GTPase-Activating Protein AS160 Is a Major Downstream Effector of Protein Kinase B/Akt Signaling in Pancreatic β-Cells
Published in Diabetes (New York, N.Y.) (01-05-2008)“…Rab GTPase-Activating Protein AS160 Is a Major Downstream Effector of Protein Kinase B/Akt Signaling in Pancreatic β-Cells Karim Bouzakri , Pascale Ribaux ,…”
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4
Computer-Assisted Digital Image Analysis to Quantify the Mass and Purity of Isolated Human Islets Before Transplantation
Published in Transplantation (15-12-2008)“…Accurate determination of islet purity and mass before transplantation is an essential part of quality control. The standard method is based on manual…”
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Engineering of Primary Pancreatic Islet Cell Spheroids for Three-dimensional Culture or Transplantation: A Methodological Comparative Study
Published in Cell transplantation (01-01-2020)“…Three-dimensional (3D) cell culture by engineering spheroids has gained increasing attention in recent years because of the potential advantages of such…”
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Unique Arrangement of α- and β-Cells in Human Islets of Langerhans
Published in Diabetes (New York, N.Y.) (01-05-2010)“…It is generally admitted that the endocrine cell organization in human islets is different from that of rodent islets. However, a clear description of human…”
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Increased Interleukin (IL)-1β Messenger Ribonucleic Acid Expression in β-Cells of Individuals with Type 2 Diabetes and Regulation of IL-1β in Human Islets by Glucose and Autostimulation
Published in The journal of clinical endocrinology and metabolism (01-10-2008)“…Context: Elevated glucose levels impair islet function and survival, and it has been proposed that intraislet expression of IL-1β contributes to glucotoxicity…”
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NLRP3 inflammasome is expressed and regulated in human islets
Published in Cell death & disease (25-06-2018)“…NRLP3 inflammasome is a protein complex involved in the maturation of IL1β. In the onset of type 1 diabetes as well as in islet transplantation, IL-1β is one…”
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Identification of newly synthetized proteins by mass spectrometry to understand palmitate-induced early cellular changes in pancreatic islets
Published in American journal of physiology: endocrinology and metabolism (01-07-2023)“…Obesity and lipid metabolism dysregulation are often associated with insulin resistance, and can lead to type 2 diabetes. However, mechanisms linking insulin…”
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NLRP3 Inflammasome is Activated in Rat Pancreatic Islets by Transplantation and Hypoxia
Published in Scientific reports (24-04-2020)“…Hypoxia, IL-1β production and oxidative stress are involved in islet graft dysfunction and destruction. However, the link between these events has not yet been…”
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Biosynthetic Activity Differs Between Islet Cell Types and in Beta Cells Is Modulated by Glucose and Not by Secretion
Published in Endocrinology (Philadelphia) (01-03-2021)“…A correct biosynthetic activity is thought to be essential for the long-term function and survival of islet cells in culture and possibly also after islet…”
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12
MicroRNAs contribute to compensatory β cell expansion during pregnancy and obesity
Published in The Journal of clinical investigation (01-10-2012)“…Pregnancy and obesity are frequently associated with diminished insulin sensitivity, which is normally compensated for by an expansion of the functional β cell…”
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Intercellular contacts affect secretion and biosynthesis of pancreatic islet cells
Published in Journal of endocrinology (01-08-2023)“…Cell protein biosynthesis is regulated by different factors, but implication of intercellular contacts on alpha and beta cell protein biosyntheses activity has…”
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Shielding islets with human amniotic epithelial cells enhances islet engraftment and revascularization in a murine diabetes model
Published in American journal of transplantation (01-06-2020)“…Hypoxia is a major cause of considerable islet loss during the early posttransplant period. Here, we investigate whether shielding islets with human amniotic…”
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Cell rearrangement in transplanted human islets
Published in The FASEB journal (01-02-2016)“…The major feature of the human pancreatic islet architecture is the organization of endocrine cells into clusters comprising central β cells and peripheral α…”
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Impact of ischemia time on islet isolation success and posttransplantation outcomes: A retrospective study of 452 pancreas isolations
Published in American journal of transplantation (01-04-2021)“…Many variables impact islet isolation, including pancreas ischemia time. The ischemia time upper limit that should be respected to avoid a negative impact on…”
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Multicenter Assessment of Animal-free Collagenase AF-1 for Human Islet Isolation
Published in Cell transplantation (01-10-2017)“…Animal-free (AF) SERVA Collagenase AF-1 and Neutral Protease (NP) AF GMP Grade have recently become available for human islet isolation. This report describes…”
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18
Signaling Pathways Implicated in the Stimulation of β-Cell Proliferation by Extracellular Matrix
Published in Molecular endocrinology (Baltimore, Md.) (01-08-2009)“…Laminin-5-rich extracellular matrix derived from 804G cells (804G-ECM) induces spreading, improves glucose-stimulated insulin secretion, and increases survival…”
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Influence of Donor Age on Islet Isolation and Transplantation Outcome
Published in Transplantation (15-02-2011)“…It has been suggested that the age of human organ donors might influence islet isolation and transplantation outcome in a negative way due to a decrease of in…”
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Cadherin Engagement Protects Human β-Cells from Apoptosis
Published in Endocrinology (Philadelphia) (01-12-2011)“…The aim of this study was to assess the expression of different types of cadherins in human islets and their role in human β-cell apoptosis. Expression of E-,…”
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