Steroid biosynthesis is an anabolic metabolic pathway that produces steroids from simple precursors. A unique biosynthetic pathway is followed in animals compared to many other organisms, making the pathway a common target for antibiotics and other anti-infective drugs.teroid ring system: The parent ABCD steroid ring system (hydrocarbon framework) is shown with IUPAC-approved ring lettering and atom numbering. A steroid is an organic compound with four rings arranged in a specific configuration.
Intradiscal electrothermal therapy (IDET), also known as intradiscal electrothermal annuloplasty (IDTA) or IEA, is a minimally invasive surgical procedure that uses a catheter and a flexible electrode that is inserted into the affected disc in order to heat the entire posterior edge of the annulus.
The IUPAC defines it as 'heating to high temperatures in air or oxygen'. However, calcination is also used to mean a thermal treatment process in the absence or limited supply of air or oxygen applied to ores and other solid materials to bring about a thermal decomposition.