Mice genetically engineered to lack the ability to make the amino acid cysteine, and fed a cysteine-free diet, lost 30% of ...

Grapefruit was once so popular that there was a diet centered around it, but was it worth the hype? One doctor decided to see for herself.

The discovery of recombinant DNA proved that biology, not chemistry alone, could create new medicines like life-saving ...

“Since the initial application of natural restriction enzymes in the 1970s, site-specific nucleases such as Zinc Finger Nucleases, TALENs and now CRISPR have been the cornerstone of site-specific DNA ...

One group followed daily caloric restriction (DCR) and the other followed 4:3 intermittent fasting (IMF), where dieters eat freely four days a week and undergo intense calorie restriction on the ...

Enzymes from bacteria chemically tweak host ... of metabolites that change significantly in mouse serum during caloric restriction. By subjecting serum to dialysis, heat inactivation, and lipid ...

Three researchers—Valentin Bruttel, Alex Washburne, and Antonius VanDongen—noted that the virus could be cut into six sections if treated with a pair of agents known as restriction enzymes and so had ...

The second key factor for CHiTA helps to overcome this hurdle by removing these added bits of sequence using a protein -- called a restriction enzyme -- that cuts DNA at specific short sequences ...

Fat byproducts like fatty acids and glycerol accelerate aging. The enzyme ADH-1, which breaks down glycerol, shows promise in slowing aging. Interventions such as calorie restriction can extend ...

We saw similar high ADH-1 activity levels in people undergoing dietary restriction or treated with ... to boost levels of the glycerol-busting enzyme ADH-1 had low glycerol levels and remained ...