Exposure to certain chemicals from plastics during early pregnancy is linked to higher blood sugar levels during pregnancy tests and a greater chance of developing glucose metabolism problems such as...
Mechanism
Synthesis from 1 study
Plastic chemicals called DEHP metabolites make the body less able to respond to insulin, so sugar stays in the blood longer after eating. This happens because they cause inflammation and mess with fat cell function. Another chemical, BPA, does the opposite by making the pancreas release more...
Most probable mechanism
Chemicals from plastic exposure interfere with how the body uses insulin, causing sugar to build up in the blood. They trigger inflammation that blocks insulin from helping cells absorb sugar, and they also mess with fat cell development, making the body less responsive to insulin overall.
DEHP metabolites activate pro-inflammatory signaling pathways in adipose and hepatic tissues, increasing tumor necrosis factor alpha production
Elevated tumor necrosis factor alpha disrupts insulin receptor substrate signaling and inhibits translocation of glucose transporter GLUT4 to the cell membrane
DEHP metabolites bind to and selectively activate peroxisome proliferator-activated receptor gamma in adipose tissue, altering expression of genes involved in lipid storage and insulin sensitivity
Dysregulated adipogenesis and impaired insulin signaling reduce cellular glucose uptake during periods of elevated blood glucose
Reduced glucose clearance leads to sustained elevation in blood glucose levels during a glucose challenge
Less supported by current evidence, but not ruled out
A different chemical, BPA, can cause the pancreas to release more insulin and less glucagon, which lowers blood sugar — this opposes the effect seen with DEHP.
Bisphenol A binds to membrane-associated estrogen receptors on pancreatic beta cells
This binding triggers rapid intracellular signaling that enhances insulin granule release in response to glucose
Bisphenol A simultaneously impairs calcium signaling in pancreatic alpha cells, reducing glucagon secretion
Increased insulin and decreased glucagon lower circulating glucose levels during a glucose challenge
Evidence from Studies
Supporting (1)
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