Health

Patients back in hospital after 'EVALI' vaping illness

Some patients who have been discharged from hospital after recovering from lung injury associated with vaping have had to be readmitted, US officials said Friday as they named the mysterious illness that has killed 26.

Steroid

A steroid is a terpenoid lipid characterized by its sterane or steroid nucleus: a carbon skeleton with four fused rings, generally arranged in a 6-6-6-5 fashion. Steroids vary by the functional groups attached to these rings and the oxidation state of the rings. Hundreds of distinct steroids are found in plants, animals, and fungi. All steroids are made in cells either from the sterol lanosterol (animals and fungi) or from the sterol cycloartenol (plants). Both sterols are derived from the cyclization of the triterpene squalene.

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