Human chronic gonadotrophin stimulates the production of gonadal steroid hormones by inducing interstitial cells (Leydig cells) of the testis to produce androgens and the corpus luteum of the ovary to produce progesterone.
An allergy is a hypersensitivity disorder of the immune system.Allergic reactions occur when a person's immune system reacts to normally harmless substances in the environment. A substance that causes a reaction is called an allergen. These reactions are acquired, predictable, and rapid. Allergy is one of four forms of hypersensitivity and is formally called type I (or immediate) hypersensitivity.
Anticancerdrugsareusedtocontrolthegrowthofcancerous cells. Canceriscommonlydefinedastheuncontrolledgrowthofcells, withlossofdifferentiationandcommonly,with metastasis spreadofthecancertoothertissuesandorgans. Cancersaremalignantgrowths.Incontrast,benigngrowths remainencapsulatedandgrowwithinawell-defined area.Drugtherapyisusedwhenthetumourhasspread,ormayspread, toallareasofthebody.