Disease activity in MS patients is associated with increases in CD25 expression, but it is not known if this reflects pathogenic T cell activation or the activation of regulatory T cells which could serve to down-regulate pathogenic immune responses (Khoury et al., 2000).
moisturenoun [ U ] uk â /ËmÉÉªs.tÊÉr/ us â /ËmÉÉªs.tÊÉ/. âº a liquid such as water in the form of very small drops, either in the air, in a substance, or on a surface: These plants need a rich soil that retains moisture. Thesaurus: synonyms and related words. Precipitation: clouds, dew, fog & steam. altocumulus.
Humidity describes the amount of water vapor in the air, and the more water vapor that is present, the more humid it is. Most weather reports don't tell you the humidity, though, because the relative humidity is more relevant.