Results 71 to 80 of about 271,085 (312)

Effect of free fatty acids on insulin secretion, insulin sensitivity and incretin effect – a narrative review

Archives of Endocrinology and Metabolism, 2020
Deleterious effects of free fatty acids, FFAs, on insulin sensitivity are observed in vivo studies in humans. Mechanisms include impaired insulin signaling, oxidative stress, inflammation, and mitochondrial dysfunction, but the effects on insulin ...
Valeria Bahdur Chueire, Elza Muscelli
doaj   +1 more source

Tunable Thermoshrinkable Hydrogels for 4D Fabrication of Cell‐Seeded Channels

Advanced Functional Materials, EarlyView.
A thermoresponsive polymer with methacrylate groups for photo‐cross‐linking, based on polyethylene glycol, N‐isopropylacrylamide, and 2‐hydroxyethyl acrylate is synthetized to yield hydrogels that shrink upon temperature increase. The new polymer enables the fabrication of cell‐laden perfusable channels with diameters below 200 µm by combining ...
Greta Di Marco, Marc Falandt, Myriam Neumann, Martina Viola, Thibault Sampon, Marta G. Valverde, Anne Metje van Genderen, Silvia M. Mihaila, Cornelus F. van Nostrum, Bas G. P. van Ravensteijn, Riccardo Levato, Rosalinde Masereeuw, Tina Vermonden   +12 more
wiley   +1 more source

Secrets of insulin and IGF-1 regulation of insulin secretion revealed [PDF]

Biochemical Journal, 2004
There has been ongoing controversy over the respective roles of insulin-like growth factor-1 receptors and insulin receptors in controlling insulin release from β-cells of the pancreas. An acute knock-down experiment exploiting small interfering RNA approaches provides a resolution: both are required.
openaire   +3 more sources

Cell‐Delivering Injectable Hydrogels with Tunable Microporous Structures Improve Therapeutic Efficacy for Volumetric Muscle Loss

Advanced Functional Materials, EarlyView.
The study presents an injectable hydrogel with tunable microporosity to improve mesenchymal stem cell delivery for volumetric muscle loss treatment. Mesenchymal stem cells encapsulated in porous hydrogels significantly promote the spreading, proliferation, and cytokine secretion of mesenchymal stem cells.
Hana Yasue, Tetsushi Taguchi, Taka‐Aki Asoh, Akihiro Nishiguchi   +3 more
wiley   +1 more source

Biomaterial Strategies for Targeted Intracellular Delivery to Phagocytes

Advanced Functional Materials, EarlyView.
Phagocytes are essential to a functional immune system, and their behavior defines disease outcomes. Engineered particles offer a strategic opportunity to target phagocytes, harnessing inflammatory modulation in disease. By tuning features like size, shape, and surface, these systems can modulate immune responses and improve targeted treatment for a ...
Kaitlyn E. Woodworth, Neal I. Callaghan, Locke Davenport Huyer   +2 more
wiley   +1 more source

Insulin Secretion and Actions [PDF]

, 2011
1.1 Insulin biosynthesis The islets of langerhans are the clusters of the endocrine tissue that scatter among the exocrine cells in the pancreas. The islets occupy approximately 1-2% of the total pancreatic tissue. Approximately, 1 million islets are scattered in the 25 cm long human pancreas.
Briony E. Forbes, Sarawut Jitrapakdee
openaire   +3 more sources

Bioengineering a Patient‐Derived Vascularized Lung Tumor‐on‐Chip Model to Decipher Immunomodulation by the Endothelium

Advanced Healthcare Materials, EarlyView.
Most in vitro cancer models lack cellular diversity, functional complexity, and clinical relevance. This work highlights the generation of an innovative dynamic tetraculture with autologous patient‐derived cells within a vascularized tumor‐on‐chip, as well as the recapitulation of endothelial anergy features induced by the tumor microenvironment ...
Christine Lansche, Ségolène Ladaigue, Giacomo Gropplero, Nicolas Zimmermann, Martin Nurmik, Irina Veith, Manh‐Louis Nguyen, Solenn Brosseau, Nicolas Poté, Pierre Mordant, Arnaud Roussel, Fathia Mami‐Chouaib, Fatima Mechta‐Grigoriou, Gérard Zalcman, Fabrice Soncin, Stéphanie Descroix, Maria Carla Parrini   +16 more
wiley   +1 more source

Rapid Deep Vat Printing Using Photoclickable Collagen‐Based Bioresins

Advanced Healthcare Materials, EarlyView.
Collagen‐based resin formulations based on thiol‐ene photoclick chemistry are demonstrated. These resins enable easy handleability under neutral conditions and further allow facile fabrication of multicellular tissue constructs via tomographic or FLight printing.
Michael Winkelbauer, Amelia Hasenauer, Dominic Rütsche, Hao Liu, Jakub Janiak, Michael Nguyen, Karen L. Christman, Marcy Zenobi‐Wong, Parth Chansoria   +8 more
wiley   +1 more source

Dynamic Profiling of Insulin Secretion and ATP Generation in Isolated Human and Mouse Islets Reveals Differential Glucose Sensitivity

Cellular Physiology and Biochemistry, 2017
Background/Aims: Rodent islets are often used for basic science research but they do not always recapitulate signalling events in human islets. This study evaluated the glucose-dependent responses of human and mouse islets in terms of dynamic insulin ...
Attilio Pingitore, Inmaculada Ruz-Maldonado, Bo Liu, Guo Cai Huang, Pratik Choudhary, Shanta J. Persaud   +5 more
doaj   +1 more source

Aging on Chip: Harnessing the Potential of Microfluidic Technologies in Aging and Rejuvenation Research

Advanced Healthcare Materials, EarlyView.
This review highlights recent advances in microfluidic technologies for modeling human aging and age‐related diseases. It explores how organ‐on‐chip platforms improve physiological relevance, enable rejuvenation strategies, facilitate drug screening, detect senescent cells, and identify biomarkers.
Limor Zwi‐Dantsis, Vignesh Jayarajan, George M. Church, Roger D. Kamm, João Pedro de Magalhães, Emad Moeendarbary   +5 more
wiley   +1 more source