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In: Biology

A drug that amplifies the effect of bradykinin would have what effect? What diseases could it...

A drug that amplifies the effect of bradykinin would have what effect? What diseases could it be prescribed to treat?

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Ans.

  • Bradykinin is a potent nonapeptide which can induce inflammation.
  • Both, pharmacologically as well as physiologically, it belongs to peptides of the kinin proteins group.
  • It dilate arterioles by releasing prostacyclin, nitric oxide and endothelium derived hyperpolarizing factor and constrict veins by releasing prostaglandin F2.
  • It is an endothelium dependent potent vasodilator and mild diuretic in nature which may reduce blood pressure level.
  • In bronchus and gut, it causes non-vascular smooth muscles contraction, increases vascular permiability and also mediate pain.
  • Constriction and eventual blockade of many other fetal vessels, including the umbilical arteires and veins, is also mediated by bradykinin.
  • Angiotensin converting enzyme (ACE) inhibitors are a drug belonging to antihypertensive drugs class which increases level of bradykinin by preventing it's degradation thus amplifying it's blood pressure lowering effect.
  • ACE inhibitors are used for the treatment of hypertension and heart failure.
  • In patients treated with ACE inhibitors, it causes dry cough.

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