Tesamorelin: Growth Hormone Releasing Peptide Therapy
What is the Peptide Tesamorelin?
Lipodystrophy encompasses a range of abnormal or degenerative conditions affecting the body's fat tissue. This condition may present as abnormal fat distribution (lipohypertrophy), fat tissue loss (lipoatrophy), or a combination of both. Lipodystrophy can either be inherited (congenital) or acquired, often arising as a consequence of certain medical interventions such as antiretroviral therapy for HIV/AIDS.
In the context of HIV/AIDS treatment, lipodystrophy frequently accompanies metabolic complications, including insulin resistance, dyslipidemia (abnormal blood lipid levels), and other cardiovascular risk factors. It can impact various body regions such as the face, arms, legs, and abdomen, altering body shape and appearance. Tesamorelin presents a viable option for individuals aiming to target stubborn areas like the abdomen, distinguishing itself from conventional weight loss programs.
How Does Tesamorelin Work?
Tesamorelin works by stimulating the receptors for GHRH, (growth hormone-releasing hormone) in the brain at the pituitary gland, thus initiating the synthesis and secretion of gh. This hormone will subsequently act on different cells all through the body, including cells such as hepatocytes located in the liver, where it causes the production of (IGF-1) insulin-like growth factor-1, which is why we advise the careful monitoring of IGF-1 levels for any elevation of the hormone during tesamorelin treatment.
IGF-1 serves as a pivotal mediator for numerous growth hormone effects, facilitating growth promotion, cell death prevention, glucose uptake enhancement, and initiation of lipolysis—the breakdown of fats. Individuals with conditions like obesity, diabetes, and lipodystrophy frequently exhibit low levels of serum IGF-1.
Tesamorein is alot like Ipamorelin and Sermorelin in how it works however it has been shown to be better at activating growth hormone
production in the body. Also, ipamorelin had been added to the FDA
category 2 bulk drug substances in September of 2023, which means that the pharmacies who were manufacturing and dispensing it are no longer
compounding it, thus making it quite difficult to obtain, which makes Sermorelin and Tesamorelin the go to choice for patients.
How Is Tesamorelin
Taken?
Tesamorelin is taken subcutaneously by injection using a small insulin needle and has significant effects on both glucose and lipid metabolism. Better knownunder it's brand name, Egrifta,
Molecular Structure of Tesamorelin
Tesamorelin consists of 44 amino acids of GHRH, combined with a trans-3-hexenoic acid group. This polypeptide has its N-terminal segment modified to improve stability and pharmacokinetic properties compared to natural GHRH.
The inclusion of the trans-3-hexenoic acid group enhances Tesamorelin's effectiveness. GHRH, typically synthesized in the hypothalamus, plays a vital role in regulating hormone secretion and other physiological functions. Upon release, GHRH stimulates the pituitary gland to secrete growth hormones into the bloodstream, maintaining physiological balance. As a crucial component of Tesamorelin, these amino acids facilitate its function as a synthetic growth hormone-releasing hormone (GHRH).
Pharmacology: Mechanism of Action
Tesamorelin binds to receptors for pituitary growth hormone-releasing factor (GRF), initiating the secretion of natural growth hormone with anabolic and lipolytic properties. Growth hormone affects various cells such as osteoblasts, myocytes, hepatocytes, and adipocytes, leading to a reduction in total fat mass. These effects are primarily driven by the production of IGF-1 in both the liver and peripheral tissues.
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