ANP, atrial natriuretic peptide

[Dr.Lolitairaqia]

Did anyone heard about ANP??
It is atrial natriuretic peptide...
I am sure you've read one line about it...
but let me tell you this interesting physiologic fact that you'll never the mechanism of action of this hormone
By the way this peptide is secreted form the Right atrium and respond to strech and increase salt intake
I am sure that you've heard by this action and for this reason you remember nothing cuz you understand nothin
ok
let me simplify
Suppose today you've got your marks and you passed the year with great scores...you want to forget these bad days of the test and relax,,,so you went to the swimming pool and suggest only to relax there...so you emptied your bladder that is not to get out from the poop for at least two hours
but as you emersed in the water...after 5 minutes you felt you bladder is full again !!! how come !!!
Did you experienced this before ???
and for this reason, the babies pool is always.........
ok
the reason after this is the ANP
this hormone has an ankowen relationship with the strech receptors of the carotid body in the neck...so when you emerse your neck in the water, these baroreceptored will be streched and therefore increase this peptide along with renin-angiotensin and ADH inhibition....so there is inhibition of Na and water reabsorption....so you feel that you need to .................
Hope this phenomenon is clear and you remember ANP...and never forget it especially when you went to the swimming pool !!!

[yezen]

Yeah I've read about it before .. As I recall some rare tumours secrete that hormone causing a chronic hypotension state ..

thanx alot dictoora..

[bloodstone]

i never heard about this b4...thx doctor for ur nice explanation&for supplying us with nice info.

**p.:what tumors can cause chronic hypotension state??would u explain this for me,Yezen


thank you..

[yezen]

Sure Sarah .. though dunno where have I read that ..but here it is .. I think some cardiac tumors (like myxoma and myxosarcoma) do that .. they secrete that ANP which causes vasodilatation and thus dropping the blood pressure .. the tumour itself is supposed to cause obstruction and infiltration of the cardiac muscles .. so it will be paradoxical with the hypotension the ANP causes .. .

lol..I know sounds weird .. but I swear I have read it somewhere ...


salam..

[Reem H.]

All i remember is that massaging of the barorecepters causes bradycardia and vasodilation I haven't heard about this peptide!

Thaaaaaaaaaaaaaank u thaaaaaaaaaaaank u
You Roooooooooooooooock Doc

[hammodi]

the clinical significance of atrial natriuretic peptide is that sometimes it's secreted when there's supraventricular junctional tachycardia and so the patient will complain of palpitations and polyuria

smiles

[bloodstone]

Thanks alot for the nice explanation,DOCTORS