The microbiome of humans contains an estimated 100 trillion microbial cells as well as an estimated quadrillion viruses. It is responsible for energy harvest, the breakdown of indigestible carbohydrates, the production of important biological molecules, and, most importantly, proper immune system development.
Three-Dimensional Preservation of Cellular and Subcellular Structures Suggests 1.6 Billion-Year-Old Crown-Group Red Algae
Multicellular eukaryotes rose to prominence around the Proterozoic–Phanerozoic transition coupled to evolving ecological interactions between megascopic autotrophs and heterotrophs. Animals in particular are thought to have had a pivotal role as—for example—predators, grazers, and filterers in expanding the food web through interactive processes not available to microbial life.
Lung Basal Stem Cells Rapidly Repair DNA Damage Using the Error-Prone Nonhomologous End-Joining Pathway
Human lungs are constantly exposed to inhaled environmental and chemical insults that have the potential to damage cellular DNA. Lung stem and progenitor cells must be capable of repairing their DNA to maintain healthy survival
Should I rather bring the groceries from the car trunk to the kitchen in 1 trip or in 2 trips? Even in a seemingly simple decision like this, multiple decision parameters are at odds. When doing a single trip, this bothersome task will certainly be finished more quickly but will require an intense physical effort
The outcome of infection by the human immunodeficiency virus-1 (HIV-1, henceforth “HIV” for simplicity) is highly variable across individuals, with time to AIDS ranging from 2 years to more than 20 years [1–4]. Quantifying the fraction of this variability explained by genetic variability in the virus is important to our understanding of the mechanisms of pathogenesis and of the evolution of virulence .
Supported and Sponsored By Over 25 Companies, including: