Chemical nature of harmone

Chemical nature of harmone

1.       Amino acid derivative (Biogenic amines)

    Derivative of Tyrosine

a.       Epinephrine & norepinephrine (Adrenal medulla)

b.      Dopamine (Hypothalamus)

c.       Thyroxine (Thyroid gland)

                  Derivative of Tryptophan

a.       Melatonin (Pineal gland)

2.       Peptide Harmone :-

        Short Peptide and small proteins

a.       ADH, Oxytocin & regulatory harmone

b.      ACTH,GH,MSH & protein (Pituitary)

c.       Insulin & glucagan (Pancreas)

d.      Parathyroid harmone (Parathyroid gland)

e.      Calcitonin (C cells of thyroid)

f.        Atrial natriuretic peptide (Heart)

g.       Gastrointestinal harmone (GI tract)

Glycoproteins :-

i.)                  TSH,LH & FSH (Pituitary)

ii.)                 Erythropoitein (Kidney)

iii.)               Inhibin (Reproductive organ)

3.       Lipid Derivative :-

Steroid harmone

a.       Androgens, estrogens & progestins (Gonads)

b.      Corticoids (Adrenal cortex)

c.       Calcitriol (Kidney)

Eicosanoids (Lipid derivative of arachidonic acid)

Prosglandins