Showing 20 articles starting at article 1681
Categories: Biology: Cell Biology, Biology: Molecular
Published Ancient proteins offer new clues about origin of life on Earth
(via sciencedaily.com) Original source By simulating early Earth conditions in the lab, researchers have found that without specific amino acids, ancient proteins would not have known how to evolve into everything alive on the planet today -- including plants, animals, and humans.
Published Cells avoid multitasking
(via sciencedaily.com) Textbooks will tell you that in dividing cells, production of new DNA peaks during the S-phase, while production of other macromolecules, such as proteins, lipids, and polysaccharides, continues at more or less the same level. Molecular biologists have now discovered that this is not true: protein synthesis shows two peaks and lipid synthesis peaks once.
Published Successful cure of HIV infection after stem cell transplantation, study suggests
(via sciencedaily.com) Haematopoietic stem cell transplantation for the treatment of severe blood cancers is the only medical intervention that has cured two people living with HIV in the past. An international group of physicians and researchers has now identified another case in which HIV infection has been shown to be cured in the same way. The successful healing process of this third patient was for the first time characterized in great detail virologically and immunologically over a time span of ten years.
Published The achilles heel of the influenza virus: Ubiquitin protein may be an approach for future medicines
(via sciencedaily.com) Original source Influenza viruses are becoming increasingly resilient to medicines. For this reason, new active ingredients are needed. Important findings in this regard have been provided: for the virus to proliferate, the polymerase of the influenza A virus has to be modified many times through enzymes in the host cells. The team of researchers was able to produce a comprehensive map of types of modification. Medicines directed against the enzymes woud be resilient to rapid mutations in the virus, thus offering great potential for the future.
Published Making engineered cells dance to ultrasound
(via sciencedaily.com) A team has developed a method for selectively manipulating genetically engineered cells with ultrasound.
Published Psyllium fiber protects against colitis by activating bile acid sensor, biomedical sciences researchers find
(via sciencedaily.com) Original source Psyllium fiber protects against ulcerative colitis and suppresses inflammation by activating the bile acid nuclear receptor, a mechanism that was previously unrecognized, according to a new study.
Published Single gene causes sea anemone's stinging cell to lose its sting
(via sciencedaily.com) When scientists disabled a single regulatory gene in a species of sea anemone, a stinging cell that shoots a venomous miniature harpoon for hunting and self-defense shifted to shoot a sticky thread that entangles prey instead, according to a new study.