sugarcane extract to a fatty diet and it will help shed the flab. But
that could be the way of the future if trials by scientists, including
an Indian-origin researcher, pan out.
NEW YORK: Scientists have found a way to give white 'bad' fat some of
the healthful characteristics of energy-burning brown 'good' fat to
treat obesity and diabetes.
Researchers at the Columbia University Medical Center (CUMC) have identified a mechanism that can give energy-storing white fat some of the beneficial characteristics of energy-burning brown fat.
Researchers at the Columbia University Medical Center (CUMC) have identified a mechanism that can give energy-storing white fat some of the beneficial characteristics of energy-burning brown fat.
The findings, based on studies of mice and of human fat tissue, could lead to obesity and type 2 diabetes treatment.
"Turning white fat into brown fat is an appealing therapeutic approach to staunching the obesity epidemic, but it has been difficult to do so in a safe and effective way," study leader and professor of Medicine and the Russell Berrie Foundation professor at CUMC Domenico Accili said in a press release.
White fat can be "browned" with a class of drugs called thiazolidazines (TZDs), which increase the body's sensitivity to insulin.
Humans have two types of fat tissue: white fat, which stores excess energy in the form of triglycerides, and brown fat, which is highly efficient at dissipating stored energy as heat.
Infants have a relative abundance of brown fat, as protection against exposure to cold temperatures. In adults, however, almost all excess energy is stored as white fat. TZDs have many adverse effects - including liver toxicity, bone loss, and, ironically, weight gain - which have limited the use of these drugs.
The researchers had previously shown in mice that when sirtuin activity increases, so does metabolic activity.
In the present study, they found that sirtuins boost metabolism by promoting the browning of white fat.
"When we sought to identify how sirtuins promote browning, we observed many similarities between the effect of sirtuins and that of TZDs," lead author associate research scientist at CUMC said.
Sirtuins work by severing the chemical bonds between acetyl groups and proteins, a process known as deacetylation. The study was published in the journal Cell.
"Turning white fat into brown fat is an appealing therapeutic approach to staunching the obesity epidemic, but it has been difficult to do so in a safe and effective way," study leader and professor of Medicine and the Russell Berrie Foundation professor at CUMC Domenico Accili said in a press release.
White fat can be "browned" with a class of drugs called thiazolidazines (TZDs), which increase the body's sensitivity to insulin.
Humans have two types of fat tissue: white fat, which stores excess energy in the form of triglycerides, and brown fat, which is highly efficient at dissipating stored energy as heat.
Infants have a relative abundance of brown fat, as protection against exposure to cold temperatures. In adults, however, almost all excess energy is stored as white fat. TZDs have many adverse effects - including liver toxicity, bone loss, and, ironically, weight gain - which have limited the use of these drugs.
The researchers had previously shown in mice that when sirtuin activity increases, so does metabolic activity.
In the present study, they found that sirtuins boost metabolism by promoting the browning of white fat.
"When we sought to identify how sirtuins promote browning, we observed many similarities between the effect of sirtuins and that of TZDs," lead author associate research scientist at CUMC said.
Sirtuins work by severing the chemical bonds between acetyl groups and proteins, a process known as deacetylation. The study was published in the journal Cell.
Columbia University Medical Center (CUMC) researchers have now come up with a new strategy to treat the largely growing problem of obesity, a recent report has revealed. They say that white 'bad' fat if converted into brown 'good' fat can prove an outstanding measure to treat the disease.
Domenico Accili, professor of Medicine as well as the Russell Berrie Foundation professor, says that a mechanism that is able to transfer healthful characteristics of 'good' fat to white 'bad' fat has been discovered. The same would be equally probably helpful for the cure diabetes also as per a study on mice and of human fat tissue.
As per the findings, two types of fat tissue are carried by humans, including white one that stores excess of energy in triglycerides’ form and brown fat, which can dissolve that energy as heat in an effective manner.
It has been told that thiazolidazines (TZDs), the name for a class of drugs can easily turn white fat into the brown one. TZDs are responsible for boosting the sensitivity of the body to insulin. "Turning white fat into brown fat is an appealing therapeutic approach to staunching the obesity epidemic, but it has been difficult to do so in a safe and effective way”, said lead author Accili.
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