Hacker News with Generative AI: Cellular Biology

Cells have more mini 'organs' than researchers thought (theconversation.com)
Cells have more mini ‘organs’ than researchers thought − unbound by membranes, these rogue organelles challenge biology’s fundamentals

Biology, Science, Cellular Biology, Research

10 points by PaulHoule 69 days ago | 6 comments

The egg or the chicken? An ancient unicellular says egg (unige.ch)
A cell division resembling that of an animal embryo has been observed in a prehistoric unicellular organism, suggesting that embryonic development might have existed prior to the evolution of animals.

Evolution, Biology, Science, Cellular Biology

71 points by giuliomagnifico 82 days ago | 84 comments

Transcript errors generate amyloid-like proteins in human cells (nature.com)
Aging is characterized by the accumulation of proteins that display amyloid-like behavior. However, the molecular mechanisms by which these proteins arise remain unclear. Here, we demonstrate that amyloid-like proteins are produced in a variety of human cell types, including stem cells, brain organoids and fully differentiated neurons by mistakes that occur in messenger RNA molecules.

Science, Biology, Aging, Proteins, Cellular Biology

4 points by bookofjoe 110 days ago | 0 comments

Obesity is driven by a build-up of molecular mesh around hunger neurons (nature.com)
The accumulation of a network of proteins and sugars called the extracellular matrix stops insulin from reaching hunger-regulating neurons, disrupting normal food intake and metabolism, and contributing to obesity.

Obesity, Neuroscience, Biology, Metabolism, Cellular Biology

3 points by bookofjoe 131 days ago | 1 comments

Strength training activates cellular waste disposal (medicalxpress.com)
The elimination of damaged cell components is essential for the maintenance of the body's tissues and organs. An international research team led by the University of Bonn has made significant findings on mechanisms for the clearing of cellular wastes, showing that strength training activates such mechanisms.