Search results
Results From The WOW.Com Content Network
Polonium in the body has a biological half-life of about 30 to 50 days. Caesium in the body has a biological half-life of about one to four months. Mercury (as methylmercury) in the body has a half-life of about 65 days. Lead in the blood has a half life of 28–36 days. [29] [30] Lead in bone has a biological half-life of about ten years.
While telomeres play an important role in cellular senescence, the intricate biological details of telomeres still require further investigation. [24] The complex interactions between telomeres, different proteins and the cellular environment must be fully understood in order to develop precise and safe interventions to change it. [ 25 ]
In pharmacology, biological activity or pharmacological activity describes the beneficial or adverse effects of a drug on living matter. [1] [2] When a drug is a complex chemical mixture, this activity is exerted by the substance's active ingredient or pharmacophore but can be modified by the other constituents. Among the various properties of ...
Other drugs which may provide relief include acitretin, ciclosporin, and methotrexate, but since these drugs have their own major side effects, doctors and patients should discuss whether to try one of these or a biologic first. [4] Most biologics are injections so are not appropriate for use by someone with intense fear of needles. [4]
Cancer cells have unique features that make them "immortal" according to some researchers. The enzyme telomerase is used to extend the cancer cell's life span. While the telomeres of most cells shorten after each division, eventually causing the cell to die, telomerase extends the cell's telomeres. This is a major reason that cancer cells can ...
Longevity may refer to especially long-lived members of a population, whereas life expectancy is defined statistically as the average number of years remaining at a given age. For example, a population's life expectancy at birth is the same as the average age at death for all people born in the same year (in the case of cohorts).
In a 2021 paper, Terzic and his colleagues laid out promising paths for closing the healthspan gap, ranging from global tobacco cessation to developing drugs that kill off damaged cells that ...
The niche for long-lived plasma cells is a subject of ongoing research, and while some aspects are understood, many questions remain. LLPCs are not inherently long-lived, and their survival relies on accessing specific pro-survival niches in the bone marrow, secondary lymphoid organs, mucosal tissues, and sites of inflammation.