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Fat mass and obesity-associated protein, also known as alpha-ketoglutarate-dependent dioxygenase FTO, is an enzyme that in humans is encoded by the FTO gene located on chromosome 16. As one homolog in the AlkB family proteins, it is the first messenger RNA (mRNA) demethylase that has been identified. [ 5 ]
Yudkin's publications from the department showed an unusual breadth of interests, including (in addition to biochemistry) further studies of adaptive enzymes, [18] [19] nutrition and public health, [20] diseases of affluence, [21] [22] food choice both in human beings [23] [24] and in experimental animals, [25] and historical aspects of the ...
Another model has been described in tumor cells in an obesity model called Warburg effect inversion. Whereas in the reverse model, the stroma of the microenvironment produces energy-rich nutrients, in a context of obesity these nutrients already exist in the bloodstream and in the extracellular fluid (ECF).
Sellayah and colleagues have postulated an 'Out of Africa' theory to explain the evolutionary origins of obesity. The theory cites diverse ethnic based differences in obesity susceptibility in western civilizations to contend that, neither the thrifty or drifty gene hypotheses can explain the demographics of the modern obesity crisis.
[5] [8] [9] For that reason orlistat was chosen over lipstatin for development as an anti-obesity drug. [1] [10] It is the only available FDA-approved oral lipase inhibitor and is known on the market as Xenical and Alli. [5] Initially orlistat was developed as a treatment for dyslipidemia, not as an anti-obesity agent. When researchers found ...
Many “failed” obesity interventions are, in fact, successful eat-healthier-and-exercise-more interventions. A review of 44 international studies found that school-based activity programs didn’t affect kids’ weight, but improved their athletic ability, tripled the amount of time they spent exercising and reduced their daily TV ...
Set point theory can be construed as implying weight regulation in a wide or tight range around the set point, in a symmetric or in an asymmetric manner (i.e. treating weight gain and loss either the same or differently), and may apply to regulation of body fat levels specifically (in a multi-compartment model) or to overall body weight.
The theory implicates the mitochondria as the chief target of radical damage, since there is a known chemical mechanism by which mitochondria can produce ROS, mitochondrial components such as mtDNA are not as well protected as nuclear DNA, and by studies comparing damage to nuclear and mtDNA that demonstrate higher levels of radical damage on ...