Date published: 2026-4-9

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TRH-R1 Activators

TRH-R1 Activators is a broad class of chemicals that can directly influence the function of the Thyrotropin-Releasing Hormone Receptor 1 (TRH-R1) or indirectly influence its activation by modulating pathways it is involved in. Among these activators, the tripeptide hormone TRH is the natural ligand and direct activator of TRH-R1. On the other hand, most chemical activators of TRH-R1 exert their influence indirectly. The common mechanism underlying their activity involves modulation of cyclic adenosine monophosphate (cAMP), a second messenger involved in a variety of cellular processes.

Epinephrine, norepinephrine, forskolin, isoproterenol, and dopamine are examples of chemicals that can increase the production of cAMP, thereby indirectly enhancing TRH-R1 activity. On the other hand, chemicals like caffeine, theobromine, rolipram, and IBMX can also activate TRH-R1 indirectly by inhibiting phosphodiesterase, an enzyme that breaks down cAMP, thus increasing its levels. Finally, bucladesine, a cAMP analogue, can activate TRH-R1 by mimicking the action of cAMP. Therefore, this class of chemicals offers a broad range of mechanisms to augment the activation of TRH-R1.

SEE ALSO...

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

(−)-Epinephrine

51-43-4sc-205674
sc-205674A
sc-205674B
sc-205674C
sc-205674D
1 g
5 g
10 g
100 g
1 kg
$41.00
$104.00
$201.00
$1774.00
$16500.00
(1)

Epinephrine can enhance the activity of TRH-R1 indirectly by increasing the production of cAMP, which is part of the signaling pathway that TRH-R1 is involved in.

L-Noradrenaline

51-41-2sc-357366
sc-357366A
1 g
5 g
$326.00
$485.00
3
(0)

Similar to epinephrine, norepinephrine can increase cAMP production, indirectly enhancing TRH-R1 activity.

Forskolin

66575-29-9sc-3562
sc-3562A
sc-3562B
sc-3562C
sc-3562D
5 mg
50 mg
1 g
2 g
5 g
$78.00
$153.00
$740.00
$1413.00
$2091.00
73
(3)

Forskolin stimulates the production of cAMP, thereby indirectly activating the TRH-R1.

Isoproterenol Hydrochloride

51-30-9sc-202188
sc-202188A
100 mg
500 mg
$28.00
$38.00
5
(0)

Isoproterenol is a non-selective agonist of beta-adrenergic receptors, which can increase cAMP levels, indirectly activating TRH-R1.

Dopamine

51-61-6sc-507336
1 g
$290.00
(0)

Dopamine can indirectly activate TRH-R1 by modulating the production of cAMP.

Rolipram

61413-54-5sc-3563
sc-3563A
5 mg
50 mg
$77.00
$216.00
18
(1)

Rolipram is a selective phosphodiesterase inhibitor, increasing cAMP levels and indirectly activating TRH-R1.

IBMX

28822-58-4sc-201188
sc-201188B
sc-201188A
200 mg
500 mg
1 g
$260.00
$350.00
$500.00
34
(1)

IBMX is a non-specific inhibitor of phosphodiesterase, which can increase cAMP levels and indirectly activate TRH-R1.