Life Lines by Dr. Dolittle

Sponsored by the American Physiological Society

Tag Archive for ‘rodent’

Remarkable hypoxia and cold tolerance of rodents native to the Tibetan plateau

The plateau zokor (Eospalax baileyi) is an underground dwelling rodent species native to the Tibetan plateau (2000-4200 meters in elevation). A new study published in the¬†American Journal of Physiology – Regulatory, Integrative and Comparative Physiology¬†explored how these animals were adapted to extract oxygen from an environment with very low levels (83-88% of atmospheric). Hemoglobin molecules found in red blood cells are responsible for binding oxygen and transporting it to tissues […]

Continue Reading →

Could circadian rhythms negatively impact research?

Our lives are regulated by a complex biological clock that controls our circadian rhythms. The master clock is located in our hypothalamus and functions to ensure that specific proteins are turned on or off at the right times. These functions are important not only for cell function, but also for proliferation and survival of species. Of concern to our health is the notion that changes in our exposure to environmental […]

Continue Reading →