Vasopressin ELISA Kit

Cell Culture Supernatants
Serum

Colorimetric

96-well Microplate

Pre-
Coated 96-well Strip Microplate
Wash Buffer
Standard Peptide
Assay Diluent(s)
Biotinylated Peptide
H
R
P-
Streptavidin
T
M
B One-
Step Substrate
Stop Solution
Assay Diagram
Positive Control Sample
Capture Antibody
User Manual

Prepare all reagents, samples and standards as instructed.
Add 100 µl detection antibody to each well.
Incubate 1.5 h at R
T or O/
N at 4°
C.
Add 100 µl standard or sample to each well.
Incubate 2.5 h at R
T.
Add 100 µl prepared streptavidin solution.
Incubate 45 min at R
T.
Add 100 µl T
M
B One-
Step Substrate Reagent to each well.
Incubate 30 min at R
T.
Add 50 µl Stop Solution to each well.
Read plate at 450 nm immediately.

Vasopressin-neurophysin 2-copeptin (AVP-NPII) [Cleaved into: Arg-vasopressin (Arginine-vasopressin) (Antidiuretic Hormone) (ADH), (Argipressin)]

Vasopressin, also known as arginine vasopressin (AVP), antidiuretic hormone (ADH), is a neurohypophysial hormone found in most mammals. Its two primary functions are to retain water in the body and to constrict blood vessels. Vasopressin regulates the body's retention of water by acting to increase water reabsorption in the collecting ducts of the kidney nephron. Vasopressin is a peptide hormone that increases water permeability of the kidney's collecting duct and distal convoluted tubule by inducing translocation of aquaporin-CD water channels in the kidney nephron collecting duct plasma membrane. It also increases peripheral vascular resistance, which in turn increases arterial blood pressure. It plays a key role in homeostasis, by the regulation of water, glucose, and salts in the blood. It is derived from a preprohormone precursor that is synthesized in the hypothalamus and stored in vesicles at the posterior pituitary. Most of it is stored in the posterior pituitary to be released into the bloodstream. However, some AVP may also be released directly into the brain, and accumulating evidence suggests it plays an important role in social behavior, sexual motivation and pair bonding, and maternal responses to stress. It has a very short half-life between 16-24 minutes.The main stimulus for secretion of vasopressin is increased osmolality of plasma. Reduced volume of extracellular fluid also has this effect, but is a less sensitive mechanism. The high-density distributions of vasopressin receptor AVPr1a in prairie vole ventral forebrain regions have been shown to facilitate and coordinate reward circuits during partner preference formation, critical for pair bond formation.