Ca2+ Oscillations, Waves, and Networks in Islets From Human Donors With and Without Type 2 Diabetes

M Gosak, R Yan-Do, H Lin, PE MacDonald, A Stožer - Diabetes, 2022 - Am Diabetes Assoc
Pancreatic islets are highly interconnected structures that produce pulses of insulin and
other hormones, maintaining normal homeostasis of glucose and other nutrients. Normal …

Assessing different temporal scales of calcium dynamics in networks of beta cell populations

J Zmazek, MS Klemen, R Markovič, J Dolenšek… - Frontiers in …, 2021 - frontiersin.org
Beta cells within the pancreatic islets of Langerhans respond to stimulation with coherent
oscillations of membrane potential and intracellular calcium concentration that presumably …

Intact pancreatic islets and dispersed beta-cells both generate intracellular calcium oscillations but differ in their responsiveness to glucose

RT Scarl, KL Corbin, NW Vann, HM Smith, LS Satin… - Cell Calcium, 2019 - Elsevier
Pancreatic islets produce pulses of insulin and other hormones that maintain normal
glucose homeostasis. These micro-organs possess exquisite glucose-sensing capabilities …

Intrinsic islet heterogeneity and gap junction coupling determine spatiotemporal Ca2+ wave dynamics

RKP Benninger, T Hutchens, WS Head… - Biophysical journal, 2014 - cell.com
Insulin is released from the islets of Langerhans in discrete pulses that are linked to
synchronized oscillations of intracellular free calcium ([Ca 2+] i). Associated with each …

Collective sensing of β-cells generates the metabolic code

D Korošak, M Slak Rupnik - Frontiers in physiology, 2018 - frontiersin.org
Major part of a pancreatic islet is composed of β-cells that secrete insulin, a key hormone
regulating influx of nutrients into all cells in a vertebrate organism to support nutrition …

Imaging calcium dynamics in subpopulations of mouse pancreatic islet cells

A Hamilton, E Vergari, C Miranda… - JoVE (Journal of Visualized …, 2019 - jove.com
Pancreatic islet hormones regulate blood glucose homeostasis. Changes in blood glucose
induce oscillations of cytosolic calcium in pancreatic islet cells that trigger secretion of three …

Glucose Induces Opposite Intracellular Ca2+ Concentration Oscillatory Patterns in Identified α- and β-Cells Within Intact Human Islets of Langerhans

I Quesada, MG Todorova, P Alonso-Magdalena… - Diabetes, 2006 - Am Diabetes Assoc
Homeostasis of blood glucose is mainly regulated by the coordinated secretion of glucagon
and insulin from α-and β-cells within the islets of Langerhans. The release of both hormones …

Glucose-stimulated calcium dynamics in islets of Langerhans in acute mouse pancreas tissue slices

A Stožer, J Dolenšek, MS Rupnik - PloS one, 2013 - journals.plos.org
In endocrine cells within islets of Langerhans calcium ions couple cell stimulation to
hormone secretion. Since the advent of modern fluorimetry, numerous in vitro studies …

The relationship between membrane potential and calcium dynamics in glucose-stimulated beta cell syncytium in acute mouse pancreas tissue slices

J Dolenšek, A Stožer, M Skelin Klemen, EW Miller… - PLoS …, 2013 - journals.plos.org
Oscillatory electrical activity is regarded as a hallmark of the pancreatic beta cell glucose-
dependent excitability pattern. Electrophysiologically recorded membrane potential …

Fluorescence Digital Image Analysis of Glucose-Induced [Ca2+]i Oscillations in Mouse Pancreatic Islets of Langerhans

M Valdeolmillos, A Nadal, B Soria, J García-Sancho - Diabetes, 1993 - Am Diabetes Assoc
At intermediate glucose concentrations,[Ca2+] i (intracellular calcium) measured in single
islets of Langerhans undergo oscillations that are caused by glucose-induced bursting of …