[HTML][HTML] Genetic activation of α-cell glucokinase in mice causes enhanced glucose-suppression of glucagon secretion during normal and diabetic states

V Bahl, CL May, A Perez, B Glaser, KH Kaestner - Molecular metabolism, 2021 - Elsevier
Objective While the molecular events controlling insulin secretion from β-cells have been
documented in detail, the exact mechanisms governing glucagon release by α-cells are …

Glucagon deficiency reduces hepatic glucose production and improves glucose tolerance in adult mice

AS Hancock, A Du, J Liu, M Miller… - Molecular …, 2010 - academic.oup.com
The major role of glucagon is to promote hepatic gluconeogenesis and glycogenolysis to
raise blood glucose levels during hypoglycemic conditions. Several animal models have …

Glutamate is a positive autocrine signal for glucagon release

O Cabrera, MC Jacques-Silva, S Speier, SN Yang… - Cell metabolism, 2008 - cell.com
An important feature of glucose homeostasis is the effective release of glucagon from the
pancreatic α cell. The molecular mechanisms regulating glucagon secretion are still poorly …

The liver–α-cell axis in health and in disease

MM Richter, KD Galsgaard, E Elmelund, FK Knop… - Diabetes, 2022 - Am Diabetes Assoc
Glucagon and insulin are the main regulators of blood glucose. While the actions of insulin
are extensively mapped, less is known about glucagon. Besides glucagon's role in glucose …

Glucagon and amino acids are linked in a mutual feedback cycle: the liver–α-cell axis

JJ Holst, NJ Wewer Albrechtsen, J Pedersen… - Diabetes, 2017 - Am Diabetes Assoc
Glucagon is usually viewed as an important counterregulatory hormone in glucose
metabolism, with actions opposing those of insulin. Evidence exists that shows glucagon is …

Glucagon receptor signaling and glucagon resistance

L Janah, S Kjeldsen, KD Galsgaard… - International journal of …, 2019 - mdpi.com
Hundred years after the discovery of glucagon, its biology remains enigmatic. Accurate
measurement of glucagon has been essential for uncovering its pathological hypersecretion …

[HTML][HTML] Reduced somatostatin signalling leads to hypersecretion of glucagon in mice fed a high-fat diet

JA Kellard, NJG Rorsman, TG Hill, SL Armour… - Molecular …, 2020 - Elsevier
Objectives Elevated plasma glucagon is an early symptom of diabetes, occurring in subjects
with impaired glucose regulation. Here, we explored alpha-cell function in female mice fed a …

13C NMR analysis reveals a link between L-glutamine metabolism, D-glucose metabolism and γ-glutamyl cycle activity in a clonal pancreatic beta-cell line

L Brennan, M Corless, C Hewage, JPG Malthouse… - Diabetologia, 2003 - Springer
Aims/hypothesis Pancreatic islet cells and clonal beta-cell lines can metabolise L-glutamine
at high rates. The pathway of L-glutamine metabolism has traditionally been described as L …

Glucose controls glucagon secretion by regulating fatty acid oxidation in pancreatic α-cells

SL Armour, A Frueh, MV Chibalina, H Dou… - Diabetes, 2023 - Am Diabetes Assoc
Whole-body glucose homeostasis is coordinated through secretion of glucagon and insulin
from pancreatic islets. When glucose is low, glucagon is released from α-cells to stimulate …

Liver-specific disruption of the murine glucagon receptor produces α-cell hyperplasia: evidence for a circulating α-cell growth factor

C Longuet, AM Robledo, ED Dean, C Dai, S Ali… - Diabetes, 2013 - Am Diabetes Assoc
Glucagon is a critical regulator of glucose homeostasis; however, mechanisms regulating
glucagon action and α-cell function and number are incompletely understood. To elucidate …