[HTML][HTML] Metabolic cycles and signals for insulin secretion

MJ Merrins, BE Corkey, RG Kibbey, M Prentki - Cell metabolism, 2022 - cell.com
In this review, we focus on recent developments in our understanding of nutrient-induced
insulin secretion that challenge a key aspect of the" canonical" model, in which an oxidative …

The pathogenesis of diabetes

H Guo, H Wu, Z Li - International journal of molecular sciences, 2023 - mdpi.com
Diabetes is the most common metabolic disorder, with an extremely serious effect on health
systems worldwide. It has become a severe, chronic, non-communicable disease after …

Sodium butyrate alleviates deoxynivalenol-induced porcine intestinal barrier disruption by promoting mitochondrial homeostasis via PCK2 signaling

D Xue, Y Cheng, T Pang, Y Kuai, Y An, K Wu… - Journal of Hazardous …, 2023 - Elsevier
Deoxynivalenol (DON) is one of the most plentiful trichothecenes occurring in food and feed,
which brings severe health hazards to both animals and humans. This study aims to …

Pyruvate kinase controls signal strength in the insulin secretory pathway

SL Lewandowski, RL Cardone, HR Foster, T Ho… - Cell metabolism, 2020 - cell.com
Pancreatic β cells couple nutrient metabolism with appropriate insulin secretion. Here, we
show that pyruvate kinase (PK), which converts ADP and phosphoenolpyruvate (PEP) into …

β-cell deletion of the PKm1 and PKm2 isoforms of pyruvate kinase in mice reveals their essential role as nutrient sensors for the KATP channel

HR Foster, T Ho, E Potapenko, SM Sdao, SM Huang… - Elife, 2022 - elifesciences.org
Pyruvate kinase (PK) and the phosphoenolpyruvate (PEP) cycle play key roles in nutrient-
stimulated K ATP channel closure and insulin secretion. To identify the PK isoforms …

Abnormal exocrine–endocrine cell cross-talk promotes β-cell dysfunction and loss in MODY8

S Kahraman, E Dirice, G Basile, D Diegisser… - Nature …, 2022 - nature.com
MODY8 (maturity-onset diabetes of the young, type 8) is a dominantly inherited monogenic
form of diabetes associated with mutations in the carboxyl ester lipase (CEL) gene …

A plasma membrane-associated glycolytic metabolon is functionally coupled to KATP channels in pancreatic α and β cells from humans and mice

T Ho, E Potapenko, DB Davis, MJ Merrins - Cell reports, 2023 - cell.com
Summary The ATP-sensitive K+(K ATP) channel is a key regulator of hormone secretion
from pancreatic islet endocrine cells. Using direct measurements of K ATP channel activity in …

[PDF][PDF] Glucose Regulation of β-Cell KATP Channels: It Is Time for a New Model!

MJ Merrins, RG Kibbey - Diabetes, 2024 - diabetesjournals.org
An agreed-upon consensus model of glucose-stimulated insulin secretion from healthy β-
cells is essential for understanding diabetes pathophysiology. Since the discovery of the …

What regulates basal insulin secretion and causes hyperinsulinemia?

BE Corkey, JT Deeney, MJ Merrins - Diabetes, 2021 - diabetesjournals.org
We hypothesize that basal hyperinsulinemia is synergistically mediated by an interplay
between increased oxidative stress and excess lipid in the form of reactive oxygen species …

[HTML][HTML] Nutrient regulation of pancreatic islet β-cell secretory capacity and insulin production

KE Rohli, CK Boyer, SE Blom, SB Stephens - Biomolecules, 2022 - mdpi.com
Pancreatic islet β-cells exhibit tremendous plasticity for secretory adaptations that coordinate
insulin production and release with nutritional demands. This essential feature of the β-cell …