Porphyria refers to a group of disorders caused by defects in heme biosynthesis enzymes. These defects lead to the accumulation of porphyrins, which can cause photosensitivity, abdominal pain, and neurological issues.
| List I | List II |
|---|---|
| A. Heart | III. Atrial natriuretic factor |
| B. Kidney | I. Erythropoietin |
| C. Gastrointestinal Tract | IV. Secretnin |
| D. Adrenal Cortex | II. Aldosterone |


