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Items: 6

1.

tolvaptan

An orally bioavailable, selective, arginine vasopressin receptor 2 (V2, AVPR2) antagonist that can be used to treat hyponatremia. Upon oral administration, tolvaptan selectively and competitively binds to and blocks the V2 receptor located in the walls of the vasculature and luminal membranes of renal collecting ducts, thereby preventing the binding of vasopressin to the V2 receptor. This prevents water absorption in the kidneys and increases the excretion of electrolyte-free water via the kidneys. This reduces intravascular volume and increases serum sodium concentrations and osmolality. [from NCI]

MedGen UID:
222094
Concept ID:
C1176308
Organic Chemical; Pharmacologic Substance
2.

Heart failure

Heart failure is a condition in which the heart can't pump enough blood to meet the body's needs. Heart failure does not mean that your heart has stopped or is about to stop working. It means that your heart is not able to pump blood the way it should. It can affect one or both sides of the heart. The weakening of the heart's pumping ability causes. -Blood and fluid to back up into the lungs. -The buildup of fluid in the feet, ankles and legs - called edema. -Tiredness and shortness of breath. Common causes of heart failure are coronary artery disease, high blood pressure and diabetes. It is more common in people who are 65 years old or older, African Americans, people who are overweight, and people who have had a heart attack. Men have a higher rate of heart failure than women. Your doctor will diagnose heart failure by doing a physical exam and heart tests. Treatment includes treating the underlying cause of your heart failure, medicines, and heart transplantation if other treatments fail. NIH: National Heart, Lung, and Blood Institute.  [from MedlinePlus]

MedGen UID:
6749
Concept ID:
C0018801
Disease or Syndrome
3.

Heart Failure

MedGen UID:
880986
Concept ID:
CN236639
Disease or Syndrome
4.

Vasopressin Antagonist

Substances that antagonize vasopressin, causing, disruption of extracellular fluid volume regulation, vasodilation, and decreased blood pressure and vascular resistance. [from NCI]

MedGen UID:
760811
Concept ID:
C3537128
Pharmacologic Substance
5.

Congestive heart failure

The presence of an abnormality of cardiac function that is responsible for the failure of the heart to pump blood at a rate that is commensurate with the needs of the tissues or a state in which abnormally elevated filling pressures are required for the heart to do so. Heart failure is frequently related to a defect in myocardial contraction. [from HPO]

MedGen UID:
9169
Concept ID:
C0018802
Disease or Syndrome
6.

Argipressin

This protein is processed from a precursor protein consisting of arginine vasopressin and two associated proteins, neurophysin II and a glycopeptide, copeptin. Arginine vasopressin is a posterior pituitary hormone which is synthesized in the supraoptic nucleus and paraventricular nucleus of the hypothalamus. Along with its carrier protein, neurophysin II, it is packaged into neurosecretory vesicles and transported axonally to the nerve endings in the neurohypophysis where it is either stored or secreted into the bloodstream. It has a direct antidiuretic action on the kidney, and also causes vasoconstriction of the peripheral vessels. This hormone can contract smooth muscle during parturition and lactation. It is also involved in cognition, tolerance, adaptation and complex sexual and maternal behaviour, as well as in the regulation of water excretion and cardiovascular functions. (LocusLink) [from NCI]

MedGen UID:
2063
Concept ID:
C0003779
Amino Acid, Peptide, or Protein; Hormone; Pharmacologic Substance
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