The coupling between transcription and translation has important consequences for rho action. Rho must first have access to RNA upstream of the transcription complex and then moves along the RNA to catch up with RNA polymerase. 

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#Unit 7. System Physiology – Animal

In the intestine,

1,25-dihydroxycholecalciferol induces the synthesis of calbindin D-28 K which promotes Ca2+ absorption.

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#Unit 7. System Physiology – Animal

1,25-dihydroxycholecalciferol stimulates the reabsorption of calcium & phophate ions from kidney.

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#Unit 7. System Physiology – Animal

In bone, 

1,25-dihydroxycholecalciferol acts synergistically with PTH to stimulate osteoclast activity and bone resorption.

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#Id: 1235

#Unit 7. System Physiology – Animal

The anterior pituitary secretes six peptide hormones: TSH, FSH, LH, GH, prolactin, & ACTH

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#Unit 7. System Physiology – Animal

Thyrotropin-releasing hormone (TRH) Tripeptide stimulates secretion of TSH by thyrotropes

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#Id: 1237

#Unit 7. System Physiology – Animal

TSH(thyrotropin)   Controls the secretion rate of thyroxine and triiodothyronine by the thyroid gland.