Apart from exercise of the
contractile functions, muscle play a huge role in producing heat via
thermogenesis. Thermogenesis is a process in which heat produced that does not include the contraction of muscles. This is important to know because there is a protein present in muscles that can increase the rate of heat production. Researchers at Sanford Burnham Prebys Medical DiscoveryInstitute have found that the protein called sarcolipin (SLP)—found in
muscles—is a key way for fat-burning processes. The process in which it
proceeds is SLP will bind to calcium ion transported that is called SERCA which
forces the muscle to spend more energy so that the calcium will be moved. Sarcolipin
binding with SERCA promotes uncoupling of SERCA CA2+ transport from ATP
hydrolysis. This increases heat production.
To proceed with this
hypothesis, researchers proceeded an experiment on mice that contained high
levels of sarcolipin versus those that did not produce any sarcolipin. By
feeding both animals high-fat diet, it showed that those with SLP did not
develop fat in their muscles, nor type 2 diabetes. On the other hand, the animals
that did not have any sarcolipin in their system struggled to burn the
fat.
This study
deserves to be further researched since it is closer on identifying specific
obesity-promoting proteins. By this research we could help those that have
difficulty with their metabolism and their metabolic pathways. It could also
aid those who have trouble exercising or have trouble with their weight.
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