Telling people to eat less doesn’t work, as demonstrated by the vast number of overweight individuals with metabolic syndrome and type 2 diabetes. Both of those are preventable, reversible conditions, even in their later stages. All the patient has to do is eat less and lose the weight. Instead most people keep the weight, undergo largely palliative treatments that produce unpleasant side-effects, suffer many more medical complications with aging, and die younger than their peers. We don’t live in a particularly rational world. Medical science may yet rescue the obese from themselves, however; certainly a very large amount of funding and effort goes into building potential treatments. Upregulation of FGF21 via gene therapy is an example of the type, a replication of one of the effects of calorie restriction that might have quite broad benefits in many organs, even for people of normal weight.
A research team has managed to cure obesity and type 2 diabetes in mice using gene therapy. A single administration of an adeno-associated viral vector (AAV) carrying the FGF21 (Fibroblast Growth Factor 21) gene, resulted in genetic manipulation of the