Thyrotropin-releasing hormone

So they pivot.

They shift all this firepower to what they hope is a simpler target, which is thyrotropin-releasing hormone, or TRH.

Yes.

And the biological tracking for TRH was incredibly tedious.

I can imagine.

To know which of the thousands of column fractions actually contain the hormone, they relied on bioassays.

And finally, by early 1969, after pulverizing literally millions of brains, both labs achieve isolation.

They finally get there.

And so this is a bigger emergency response than your thyroid.

So when people are just looking at how do I tinker with my thyroid levels, I think we should look a little bit more upstream and see, well, if TRH is released by the hypothalamus, and then TSH releases by the pituitary, then maybe we should look more upstream.

So if we were to get really simple about mast cells, our immune response, it doesn't matter what we label all the different things because mast cells are also thousands of different chemical mediators.

So when you say mast cells, it could mean a histamine, it could mean a cytokine, it could mean leukotrienes, it could mean prostaglandins.

It's more for research purposes only and done in research labs.

That TRH sends signals, so these are all cross-talking with each other, to the pituitary gland, which is at the base of your brain.

that release some thyroid stimulating hormone, which is a TSH test that you most commonly get to screen for a thyroid dysfunction.

Now that thyroid stimulating hormone now travels through the bloodstream, goes to your thyroid gland.

Vamos a poner, si quieres, dos ejemplos con dos hormonas para que la gente yo creo que nos entienda bastante bien.

Eh, vamos a poner primero el hipotálamo, ¿no? Como primera glándula, que, que es una de las grandes, eh, segregadoras, eh, que, que generan hormonas, ¿no? Pues el hipotálamo genera TRH, que es tirotropina releasing hormone.

Releasing hormone es hormona liberadoras de tirotropina.

Vaya palabrota.

Entonces, el hipotálamo libera eso y eso no puede ir a ningún sitio como efecto directo.

Va a la hipófisis, muy bien.

La hipófisis recibe esta TRH y dice: vale, dice el hipotálamo que genere mucha TSH.

Pues la hipófisis genera mucha TSH, hormona estimulante de la tiroides.