In the 1970s, scientists from several countries proposed to reconstruct, one by one, all the neurons in the brain as they appear under an electron microscope. They started with a small worm. Caenorhabditis elegans has only 302 neurons. It took 16 years. How much time would be required to repeat this arduous task for the 100 billion neurons in the human brain?

Researchers at the University of Leipzig and ETH Zurich have used single-cell sequencing to identify differences between fat tissue of obese individuals who are metabolically unhealthy, and those who were in good metabolic health. The findings, which were published online Dec. 17, 2024, in Cell Metabolism, identify measurements that can be used to decouple obesity from metabolic disease.

Investigators at the Helmholtz Institute have shown that inceptor, an inhibitor of the insulin signaling pathway, acted by binding insulin and targeting it for degradation. “Insulin was discovered 100 years ago, and the insulin receptor was discovered 50 years ago,” Heiko Lickert told BioWorld. “Now we have a new insulin receptor, which degrades insulin.” Lickert is the senior author of the paper reporting the new insights into how inceptor works, which were published online in Nature Metabolism.