Vasoactive intestinal polypeptide receptor 1 also known as VPAC1, is a protein, that in humans is encoded by the VIPR1 gene.[1] VPAC1 is expressed in the brain (cerebral cortex, hippocampus, amygdala), lung, prostate, peripheral blood leukocytes, liver, small intestine, heart, spleen, placenta, kidney, thymus and testis.[2][3][4]
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VPAC1 is a receptor for vasoactive intestinal peptide (VIP), a small neuropeptide. Vasoactive intestinal peptide is involved in smooth muscle relaxation, exocrine and endocrine secretion, and water and ion flux in lung and intestinal epithelia. Its actions are effected through integral membrane receptors associated with a guanine nucleotide binding protein which activates adenylate cyclase.[1]
VIP acts in an autocrine fashion via VPAC11 to inhibit megakaryocyte proliferation and induce proplatelet formation. [5][6]
Patients with idiopathic achalasia show a significant difference in the distribution of SNPs affecting VIPR1.[7]
VIP and PACAP levels were decreased in anterior vaginal wall of stress urinary incontinence and pelvic organ prolapse patients, they may participate in the pathophysiology of these diseases.[8]
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I threw your keys in the water, I looked back,
Theyd frozen halfway down in the ice.
They froze up so quickly, the keys and their owners,
Even after the anger, it all turned silent, and
The everyday turned solitary,
So we came to February.
First we forgot where wed planted those bulbs last year,
Then we forgot that wed planted at all,
Then we forgot what plants are altogether,
and I blamed you for my freezing and forgetting and
The nights were long and cold and scary,
Can we live through February?
You know I think Christmas was a long red glare,
Shot up like a warning, we gave presents without cards,
And then the snow,
And then the snow came, we were always out shoveling,
And wed drop to sleep exhausted,
Then wed wake up, and its snowing.
And February was so long that it lasted into March
And found us walking a path alone together.
You stopped and pointed and you said, "Thats a crocus,"
And I said, "Whats a crocus?" and you said, "Its a flower,"
I tried to remember, but I said, "Whats a flower?"
You said, "I still love you."
The leaves were turning as we drove to the hardware store,
My new lover made me keys to the house,
And when we got home, well we just started chopping wood,
Because you never know how next year will be,
And well gather all our arms can carry,