TH9507 is one of those subjects where the details matter more than the headlines. This page pulls together the background, the mechanisms, and the practical points readers ask about most.
Updated 2026-06-22. Numbers and descriptions here follow the published literature rather than marketing material.
Tesamorelin is a synthetic peptide analog of growth hormone-releasing hormone (GHRH). Its sequence corresponds to the 44-amino-acid form of human GHRH with a trans-3-hexenoyl group attached to the N-terminal tyrosine. This modification slows enzymatic cleavage and extends the peptide's activity relative to the native hormone. The compound is produced by solid-phase peptide synthesis and supplied as a lyophilized powder. Researchers classify it as a GHRH receptor agonist. Its structure places it in the same family as other growth hormone secretagogues that act on the pituitary.
Binding of tesamorelin to GHRH receptors on pituitary somatotroph cells triggers cyclic AMP signaling and the release of growth hormone into circulation. Because the peptide acts upstream of the growth hormone axis, its effects are partly mediated by hepatic insulin-like growth factor 1 (IGF-1) production. The pulsatile character of endogenous growth hormone secretion is preserved rather than replaced. Whether amplified signaling produces effects beyond those of native GHRH remains an area of ongoing investigation.
A documented effect of tesamorelin is a reduction in visceral adipose tissue in some study populations. Researchers have reported decreases in trunk fat measured by computed tomography alongside changes in lipid markers. The mechanism is thought to involve growth hormone-mediated lipolysis, though the precise contribution of direct versus indirect pathways is not fully resolved. Studies have generally examined defined groups over finite periods, so long-term outcomes are less well characterized. Findings have not been uniform across all trials.
Development work on the compound, originally designated TH9507, focused on conditions in which reduced growth hormone signaling is thought to contribute to altered body composition. The United States Food and Drug Administration approved it in 2010 for the treatment of excess visceral abdominal fat in adults with human immunodeficiency virus infection and lipodystrophy. Later research examined other populations, including adults with mild cognitive impairment, where a large trial did not meet its primary endpoints. This mixed record illustrates how a single mechanism can produce clear effects in one setting and inconclusive results in another.
Several related peptides act on the same receptor, including sermorelin, a shorter GHRH fragment, and modified analogs such as CJC-1295 and modified GRF(1-29) that are common in research settings rather than approved products. Tesamorelin differs from growth hormone itself in that it acts upstream, prompting the pituitary to release the hormone through physiological signaling rather than supplying it directly. Terminology in the literature distinguishes GHRH analogs, growth hormone secretagogues, and recombinant growth hormone, although popular discussion often blurs these categories together. Precise naming matters when comparing study results.
| Property | Value | Notes |
|---|---|---|
| Molecular class | Synthetic peptide | GHRH receptor agonist |
| Residue count | 44 amino acids | N-terminal trans-3-hexenoyl group |
| Approximate mass | About 5.1 kDa | Derived from the peptide sequence |
| Primary target | Pituitary GHRH receptor | Somatotroph cells of the anterior pituitary |
| Downstream marker | IGF-1 | Measured indirectly in circulation |
Physicochemical behavior is dominated by the peptide backbone. The molecule is hydrophilic and carries a net positive charge near neutral pH, owing to several arginine and lysine residues. In solution it adopts a largely unstructured conformation, and aggregation is a known concern for peptide products of this size. Oxidation of methionine and deamidation of asparagine or glutamine residues are the principal chemical degradation routes. These liabilities shape how the material is formulated, handled, and analyzed, and they explain why lyophilized presentations are common in research settings.
Tesamorelin is a synthetic peptide analog of growth hormone-releasing hormone, built from 44 amino acids. Its sequence follows the natural human GHRH(1-44) backbone, with a trans-3-hexenoyl group attached to the N-terminal tyrosine. This modification blocks recognition by dipeptidyl peptidase IV, the enzyme that rapidly truncates the native hormone in circulation. The result is a molecule with a substantially longer plasma residence time than unmodified GHRH, which makes it practical for clinical and laboratory study.
Receptor-level activity begins when the peptide binds the GHRH receptor, a class B G-protein-coupled receptor found on pituitary somatotroph cells. Occupancy triggers Gs-mediated activation of adenylyl cyclase and a rise in intracellular cyclic AMP, which in turn promotes synthesis and pulsatile release of growth hormone. Because the compound acts upstream of the growth hormone axis rather than supplying hormone directly, its effect depends on intact pituitary function. Binding studies in cell culture and animal models have established this pathway; the detailed kinetics of receptor recycling in humans remain less well characterized.
== Collaborations == Saladino describes himself as an "adventure buddy" of another carnivore diet influencer, Anthony Gustin, founder of online food store Perfect Keto. The pair visited the Hadza people of Tanzania in 2022, promoting them as a dietary model; Saladino said "The Hadza are the closest thing we have to a time machine." According to science writer Dorsa Amir, "the idea that the 'correct' diet is an ancient one is also the backbone of fads like the paleo diet, [and] Saladino's carnivore diet." Saladino is the founder of Heart & Soil, an Austin, Texas-based company producing food supplements. Saladino co-owns it with fellow carnivore diet influencer Brian Johnson, known as Liver King. Heart & Soil sells bottles of encapsulated organ meat-based supplement products and liver pills. He collaborated with California luxury grocery store Erewhon in 2023 on the store's Raw Animal-Based Smoothie, which mixes kefir (fermented milk), along with other ingredients, with beef organs and "Immunomilk" (a product made of freeze-dried cow's colostrum). The raw milk was supplied by California-based Raw Farms, until it switched to pasteurization after tests of its milk turned up positive for H5N1 influenza A virus. Consuming raw animal meat poses a risk of bacterial infection.
== History == In 1921, Joslin reported the association of diabetes with hypertension and hyperuricaemia. In 1923, Kylin expanded on this triad. In 1947, Vague observed that upper-body obesity predisposed to diabetes, atherosclerosis, gout and calculi. The term metabolic syndrome began appearing in the late 1950s. In 1967, Avogaro, Crepaldi and coworkers described moderately obese people with diabetes, hypercholesterolemia, and marked hypertriglyceridemia that improved on hypocaloric, low-carbohydrate diets. In 1977, Hans Haller used the term for associations of obesity, diabetes mellitus, hyperlipoproteinemia, hyperuricemia, and hepatic steatosis. The same year, Singer used it for associations of obesity, gout, diabetes, and hypertension with hyperlipoproteinemia. In 1977–1978, Gerald B. Phillips proposed a "constellation of abnormalities" (glucose intolerance, hyperinsulinemia, hypercholesterolemia, hypertriglyceridemia, hypertension) and hypothesised sex hormones as a linking factor. The first comprehensive definition of the metabolic syndrome was given in 1981 by the German researchers Markolf Hanefeld and Wolfgang Leonhardt, Dresden, who defined it as a cluster of obesity, hyper- and dyslipoproteinemia, type 2 diabetes, gout, and hypertension, associated with an increased incidence of atherosclerotic vascular disease, fatty liver disease, and gallstones. In 1988, Gerald M. Reaven's Banting lecture proposed insulin resistance as the underlying factor and coined syndrome X.
=== Celebrations and festivals === Lefse is celebrated in cities and towns with large Scandinavian populations. Fargo, North Dakota, hosts the popular Lutefisk and Lefse Festival in August each year. Fosston, Minnesota, invites area lefse makers to compete for the title of Champion Lefse Maker at its Lefse Fest in November. In Mankato, Minnesota, Minnesotans of Scandinavian descent celebrate lefse day, a day for cooking lefse, on the Sunday after Thanksgiving. The Potato Days festival has been taking place in Barnesville, Minnesota, since the early 1930s; this festival also takes part in the National Lefse Cookoff.
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Sources: en.wikipedia.org
Carbamazepine is typically used for the treatment of seizure disorders and neuropathic pain. It is used off-label as a second-line treatment for bipolar disorder and in combination with an antipsychotic in some cases of schizophrenia when treatment with a conventional antipsychotic alone has failed. However, evidence does not support its usage for schizophrenia. It is not effective for absence seizures or myoclonic seizures. Although carbamazepine may have a similar effectiveness (as measured by people continuing to use a medication) and efficacy (as measured by the medicine reducing seizure recurrence and improving remission) when compared to phenytoin and valproate, it is not well-researched which medication is most helpful for people with newly-onset seizures. In the United States, carbamazepine is indicated for the treatment of epilepsy (including partial seizures, generalized tonic-clonic seizures and mixed seizures), and trigeminal neuralgia. Carbamazepine is the only medication that is approved by the Food and Drug Administration for the treatment of trigeminal neuralgia. As of 2014, a controlled release formulation was available for which there is tentative evidence showing fewer side effects and unclear evidence with regard to whether there is a difference in efficacy. In 2016, the FDA approved an intravenous formulation of carbamazepine, also granting it orphan drug status under the trade name Carnexiv, as a short-term replacement therapy for oral carbamazepine in adults with specific types of seizure disorders, who are unable to tolerate the oral formulation.
biochemistry A subdiscipline of both biology and chemistry which studies the chemical basis of biological phenomena, focusing on understanding the chemical reactions and interactions that occur between biomolecules and give rise to the processes that define and characterize living systems. It is closely related to and largely overlaps with molecular biology.
In the United States, the New Deal liberalism of President Franklin D. Roosevelt won mass support leaving socialists unable to gain significant ground. Norman Thomas of the Socialist Party of America (SPA) attracted nearly 188,000 votes in his 1936 run for president, but performed poorly in historic strongholds of the party and the Socialist Party of America's membership had begun to decline. Meanwhile, the Trotskyist movement, followed a policy known as the French Turn, a strategy of entryism in democratic socialist parties such as the SPA, SFIO and ILP, pulling these to the left in some places. However, fascism was also advancing. In Germany, it was the fascists of Adolf Hitler's Nazi Party who successfully exploited the Depression to win power, in January 1933. Hitler's regime swiftly destroyed both the German Communist Party and the Social Democratic Party, the worst blow the world socialist movement had ever suffered. This forced Stalin to reassess his strategy, and after its 7th World Congress in 1935 the Comintern began urging a popular front against fascism. The socialist parties were at first suspicious, given the bitter hostility of the 1920s, but eventually effective Popular Fronts were formed in both France and Spain. In Italy, the Italian Socialist Party (PSI) established an alliance with the Communists and it gradually cooperated with conservative reformists, revolutionaries, and syndicalists. In France, the Popular Front, headed by the SFIO's Léon Blum, won the 3 May 1936 election, leading to a government composed of Radical and Socialist ministers.
Medical genetics is concerned with the diagnosis and management of hereditary disorders. Neurology is concerned with diseases of the nervous system. In the UK, neurology is a subspecialty of general medicine. Obstetrics and gynecology (often abbreviated as OB/GYN (American English) or Obs & Gynae (British English)) are concerned respectively with childbirth and the female reproductive and associated organs. Reproductive medicine and fertility medicine are generally practiced by gynecological specialists. Pediatrics (AE) or paediatrics (BE) is devoted to the care of infants, children, and adolescents. Like internal medicine, there are many pediatric subspecialties for specific age ranges, organ systems, disease classes, and sites of care delivery. Pharmaceutical medicine is the medical scientific discipline concerned with the discovery, development, evaluation, registration, monitoring and medical aspects of marketing of medicines for the benefit of patients and public health. Physical medicine and rehabilitation (or physiatry) is concerned with functional improvement after injury, illness, or congenital disorders. Podiatric medicine is the study of, diagnosis, and medical and surgical treatment of disorders of the foot, ankle, lower limb, hip and lower back. Preventive medicine is the branch of medicine concerned with preventing disease. Community health or public health is an aspect of health services concerned with threats to the overall health of a community based on population health analysis.
α-Methylfentanyl has similar effects to fentanyl. It is less potent by weight due to reduced binding affinity to its target site, but has an increased duration of action, as the α-methyl group interferes with binding to metabolic enzymes which break the drug down. Since fentanyl itself is highly potent and notorious for causing fatal overdoses when abused, and also very short lasting with recreational users often administering doses every hour, α-methylfentanyl could have several advantages over the parent compound as a recreational drug. Side effects of fentanyl analogs are similar to those of fentanyl itself, which include itching, nausea and potentially serious respiratory depression (namely with overdoses or improper drug-combinations, such as with benzodiazepines) which can be life-threatening. Fentanyl analogs such as α-methylfentanyl and 3-methylfentanyl are often used as the "cut" in small amounts in normal heroin stamps and bags, making them more potent and profitable than when sold as heroin alone due to the advantage of raising the retail price and potency per unit sold.
Sources: en.wikipedia.org
It mirrors the 44-residue form of human growth hormone-releasing hormone. A hexenoyl group on the N-terminal tyrosine distinguishes it from the unmodified hormone. The change is intended to improve resistance to enzymatic breakdown.
The N-terminal modification reduces cleavage by circulating peptidases, so the peptide persists longer than native GHRH. That persistence is the main rationale for the synthetic design. Comparative half-life values in humans are reported in regulatory review documents rather than in general reference literature.
Reductions in visceral adipose tissue have been measured in controlled studies of defined populations. Whether the effect generalizes to other groups and persists after treatment stops is less clear. Longer-term outcome data remain limited.
It is a synthetic peptide built from 44 amino acids arranged in the same order as human growth hormone-releasing hormone. A short fatty-acid chain, described as a trans-3-hexenoyl group, is attached to the first amino acid. The finished molecule is formulated as a sterile powder that is dissolved before use.