AVT and isotocin are nine amino acid peptides, known as nonapeptides, that belong to the arginine vasopressin-oxytocin family of peptides (Bentley, 1998) that modulates a range of vertebrate social behaviors (reviewed in Goodson and Bass, 2001; Godwin and Thompson, 2012; Goodson, 2013). Do snakes have oxytocin? Oxytocin is most effectiveRead More →
When you are facing a diagnosis of a hormonal condition, like diabetes or thyroid disease, your doctor may suggest you see an endocrinologist. You may be wondering why you need to see a specialist instead of simply sticking with your primary doctor. Is an endocrinologist a hormone specialist? What IsRead More →
Metamorphosis is brought by a hormone called thyroxine. Thyroid gland needs Iodine to secrete Thyroxine. Hence Iodine should be present in water for the metamorphosis of tadpoles. What hormone triggers metamorphosis? Metamorphosis is initiated internally and maintained by the hormone thyroxine (TH), and the process is obligatory. TH elicits extensiveRead More →
Noradrenaline and adrenaline are catecholamines. Noradrenaline is the main neurotransmitter of the sympathetic nerves in the cardiovascular system. Adrenaline is the main hormone secreted by the adrenal medulla. What does noradrenaline do as a neurotransmitter? As a neurotransmitter in the central nervous system, norepinephrine increases alertness and arousal, and speedsRead More →
Adrenocorticotropic hormone (corticotropin; ACTH) is a 39 amino acid peptide hormone produced by cells of the anterior pituitary gland and carried by the peripheral circulation to its effector organ, the adrenal cortex, where it stimulates the synthesis and secretion of glucocorticoids and, to a more modest extent, … What isRead More →
Gibberellins (GAs) are plant hormones that regulate various developmental processes, including stem elongation, germination, dormancy, flowering, flower development, and leaf and fruit senescence. GAs are one of the longest-known classes of plant hormone. Is gibberellic acid a hormone? Gibberellic acids (Gibberellins) are naturally occurring plant hormones that are used asRead More →
For short, healthy children, studies predict that growth hormone will deliver an extra 1 to 3 inches as an adult. And that’s the average; other factors come into play. If both parents are short, that limits what growth hormone therapy can do. Can HGH make you taller at 19? HumanRead More →
Parathyroid Hormone PTH regulates how much calcium is absorbed from your diet, how much calcium is excreted by your kidneys, and how much calcium is stored in your bones. We store many pounds of calcium in our bones, and it is readily available to the rest of the body atRead More →
But the achievement for which Li is most likely to be remembered was the discovery in 1955 of the human growth hormone–which, as the name implies, stimulates the growth of children and adolescents. What is the human growth hormone called? The pituitary gland is a structure in our brain thatRead More →
All the steroid hormones exert their action by passing through the plasma membrane and binding to intracellular receptors. The mechanism of action of the thyroid hormones is similar; they interact with intracellular receptors. Is thyroid hormone a steroid or peptide? Thyroid-stimulating hormone is a peptide hormone. Tyrosine derivatives are modifiedRead More →