Australian researchers have identified a critical link between obesity and the onset of Type 2 diabetes.
A Monash University study found that fat cells release a novel protein called PEDF (pigment epithelium-derived factor), which triggers a chain of events and interactions that lead to development of Type 2 diabetes.The findings have been published today in respected journal Cell Metabolism.
"When PEDF is released into the bloodstream, it causes the muscle and liver to become desensitised to insulin. The pancreas then produces more insulin to counteract these negative effects, " Associate Professor Watt said.
This insulin release causes the pancreas to become overworked, eventually slowing or stopping insulin release from the pancreas, leading to Type 2 diabetes."
"It appears that the more fat tissue a person has the less sensitive they become to insulin. Therefore a greater amount of insulin is required to maintain the body's regulation of blood-glucose," Associate Professor Watt said.
"Our research was able to show that increasing PEDF not only causes Type 2 diabetes like complications but that blocking PEDF reverses these effects. The body again returned to being insulin-sensitive and therefore did not need excess insulin to remain regulated."
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"Until now scientists knew there was a very clear pattern and had strong suspicions that a link existed between the two conditions, but our understanding of the chain of events that are caused by the release of PEDF shows a causal link," Associate Professor Watt said.
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Source-Medindia
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