This is a working overview of GHRH analog, written for readers who want more than a one-paragraph summary but less than a textbook.
Reviewed 2025-12-20. Anything still debated is marked as such rather than presented as settled.
Clinical study of tesamorelin has centered on adults with HIV-associated lipodystrophy, a condition in which abdominal fat accumulates while peripheral fat is lost. In controlled trials, treated participants showed reductions in visceral adipose tissue measured by imaging, alongside modest shifts in some lipid values. Effects on subcutaneous fat were smaller and less consistent across studies. Whether these changes translate into fewer cardiovascular events remains an open question, because the trials were not designed or powered to answer it.
Tesamorelin is a synthetic peptide that acts as an analog of growth hormone-releasing hormone, a natural hypothalamic signal. Its sequence corresponds to the forty-four amino acid form of the human hormone, with a small acyl group attached near the amino terminus. That modification slows enzymatic breakdown and extends the time the peptide remains active in circulation. The compound was developed as a pharmacological way to raise endogenous growth hormone output rather than supplying the hormone directly.
After injection, the peptide binds receptors on somatotroph cells in the anterior pituitary. Receptor activation raises intracellular cyclic AMP and triggers release of stored growth hormone into the bloodstream. Because the compound works through the body's own regulatory system, growth hormone pulses retain much of their normal feedback control. Repeated administration also raises insulin-like growth factor 1, a hormone produced mainly in the liver. Investigators treat that rise as a marker that the pituitary axis has been engaged.
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 |
|---|---|---|
| Drug class | Peptide hormone analog | Acts at the growth hormone-releasing hormone receptor |
| Receptor | Growth hormone-releasing hormone receptor | G protein-coupled; raises cyclic AMP in somatotrophs |
| Key mediator | Insulin-like growth factor 1 | Increases with repeated administration |
| Main studied population | Adults with HIV-associated lipodystrophy | Trials measured visceral adipose tissue by imaging |
| Route | Subcutaneous injection | Given once daily in clinical use |
A Phase 3 program led to regulatory approval in the United States in 2010 for reduction of excess visceral abdominal fat in adults with HIV and lipodystrophy. Subsequent studies examined effects on liver fat, muscle area, and metabolic markers, with mixed findings for some endpoints. Long-term cardiovascular outcomes and effects on mortality remain uncertain because most trials were relatively short and focused on imaging-based fat measurements. Use in populations without HIV has been studied experimentally but is not part of the approved indication.
Tesamorelin is a synthetic analog of growth hormone-releasing hormone, a peptide hormone produced by the hypothalamus. The molecule retains the 44-amino-acid sequence of human GHRH and carries a trans-3-hexenoyl modification at its N-terminus. This modification increases resistance to enzymatic degradation and extends the peptide's functional stability relative to native GHRH. The compound is supplied as a lyophilized powder for reconstitution and subcutaneous administration in clinical settings. Its development code was TH9507, and it belongs to the GHRH analog class. It is not a growth hormone product; instead, it acts upstream to stimulate endogenous growth hormone release.
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.
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.
== Original == The intricate imagery on the lorica musculata (typical of legates) refers to the Parthian Empire’s restitution of Roman eagle insignia, which had previously been captured from Marcus Licinius Crassus, to Augustus in 20 BC, one of his most significant diplomatic accomplishments. The date of the (hypothetical) bronze original is therefore later than 20 BC. The event detailed on the armor symbolizes the Pax Romana initiated by Rome’s first Emperor. The fact that Augustus is depicted barefooted is intended to be a divine representation, as this was a standard depiction of gods or heroes in classical iconography. The date of the marble copy would presumably fall between that date and Livia's death in AD 29. The statue might have been commissioned by Tiberius, the successor to Augustus, possibly as a gift to his mother Livia (since it was found in her Villa ad Gallinas Albas in the vicinity of the ninth mile-marker of the Via Flaminia, and close to a late imperial gate and aqueduct called Prima Porta) after Augustus' death and in honor of the woman who had campaigned for so long for him to become the next Caesar. This hypothesis is based on the fact that the central reliefs on the heroic cuirass depict the retrieval of Crassus' standards captured by the Parthians, an event in which the young Tiberius himself served as an intermediary with the Parthian king, and which was possibly his greatest service to his adoptive father Augustus.
Olfactory receptors (ORs), also known as odorant receptors, are chemoreceptors expressed in the cell membranes of olfactory receptor neurons and are responsible for the detection of odorants (for example, compounds that have an odor) which give rise to the sense of smell. Activated olfactory receptors trigger nerve impulses which transmit information about odor to the brain. Vertebrates have a total of four olfactory receptor families: OR, TAAR, V1R/ORA, and V2R/OlfC. This article focuses on the OR family. This consists of members of the rhodopsin-like (class A) G protein-coupled receptors (GPCRs). OR forms the largest multigene family in vertebrates consisting of around 400 genes in humans and 1400 genes in mice. In insects, olfactory receptors are members of an unrelated group of ligand-gated ion channels.
== External links == "Prolactin-Releasing Peptide Receptor". IUPHAR Database of Receptors and Ion Channels. International Union of Basic and Clinical Pharmacology. Archived from the original on 2016-03-03. Retrieved 2008-12-09. PRLHR+protein,+human at the U.S. National Library of Medicine Medical Subject Headings (MeSH) This article incorporates text from the United States National Library of Medicine, which is in the public domain.
=== Dopamine reuptake and release agents === Amphetamine is a stimulant that has been found to improve both physical and cognitive performance. Amphetamine blocks the reuptake of dopamine and norepinephrine, which delays the onset of fatigue by increasing the amount of dopamine, despite the concurrent increase in norepinephrine, in the central nervous system. Amphetamine is a widely used substance among collegiate athletes for its performance enhancing qualities, as it can improve muscle strength, reaction time, acceleration, anaerobic exercise performance, power output at fixed levels of perceived exertion, and endurance. Methylphenidate has also been shown to increase exercise performance in time to fatigue and time trial studies.
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=== Deep brain stimulation === One treatment methodology that is very promising for the treatment of camptocormia is deep brain stimulation. Previously, deep brain stimulation and bilateral stimulation of the subthalamic nucleus and/or globus pallidus internus have been used to treat patients with Parkinson's disease. Studies have shown that similar treatments could be used on patients with severe camptocormia. By using the Burke-Fahn-Marsden Dystonia Rating Scale before and after treatment, it was found that patients experienced significant functional improvement in the ability to walk.
=== Access to healthcare === In 2021, the French Senate's Delegation for Women's Rights reported that women's health was not considered a priority in rural areas, where medical desertification limits access to gynecological care. This can result in delayed care and inadequate cancer screening. France has faced a shortage of medical gynecologists, with some departments lacking them entirely. Medical gynecology, a discipline distinct from obstetrics and specific to France, saw a halt in specialist training from 1984 to 2003 as the country considered aligning with other European healthcare systems that do not maintain this distinction.
In pathology, a contracture is a shortening of muscles, tendons, skin, and nearby soft tissues that causes the joints to shorten and become very stiff, preventing normal movement. A contracture is usually permanent, but less commonly can be temporary (such as in McArdle disease), or resolve over time but reoccur later in life (such as in Bethlem myopathy 1). It is usually in response to prolonged hypertonic spasticity in a concentrated muscle area, such as is seen in the tightest muscles of people with conditions like spastic cerebral palsy, but can also be due to the congenital abnormal development of muscles and connective tissue in the womb. Contractures develop usually when normally elastic tissues such as muscles or tendons are replaced by inelastic tissues (fibrosis). This results in the shortening and hardening of these tissues, ultimately causing rigidity, joint deformities and a total loss of movement around the joint. Most of the physical therapy, occupational therapy and other exercise regimens targeted towards people with spasticity focuses on trying to prevent contractures from happening in the first place. However, research on sustained traction of connective tissue in approaches such as adaptive yoga has demonstrated that contracture can be reduced at the same time that tendency toward spasticity is addressed.
As an example of varying pressures, a finger can be pressed against a wall without making any lasting impression; however, the same finger pushing a thumbtack can easily damage the wall. Although the force applied to the surface is the same, the thumbtack applies more pressure because the point concentrates that force into a smaller area. Pressure is transmitted to solid boundaries or across arbitrary sections of fluid normal to these boundaries or sections at every point. Unlike stress, pressure is defined as a scalar quantity. The negative gradient of pressure is called the force density. Another example is a knife. If the flat edge is used, force is distributed over a larger surface area resulting in less pressure, and it will not cut. Whereas using the sharp edge, which has less surface area, results in greater pressure, and so the knife cuts smoothly. This is one example of a practical application of pressure. For gases, pressure is sometimes measured not as an absolute pressure, but relative to atmospheric pressure; such measurements are called gauge pressure. An example of this is the air pressure in an automobile tire, which might be said to be "220 kPa (32 psi)", but is actually 220 kPa (32 psi) above atmospheric pressure. Since atmospheric pressure at sea level is about 100 kPa (14.7 psi), the absolute pressure in the tire is therefore about 320 kPa (46 psi). In technical work, this is written "a gauge pressure of 220 kPa (32 psi)".
Wittner (1962), historian on peace movements Peter Winn (1962), professor of history at Tufts University Richard Alba (1963), sociologist, professor at Graduate Center, CUNY David Berlinski (1963), mathematician, professor Eric Foner (1963), preeminent historian of Reconstruction, winner of the Pulitzer Prize for History and former president of American Historical Association David Orme-Johnson (1963), professor of psychology at the Maharishi University of Management Michael Klare (1963), professor of security studies at Hampshire College Victor Margolin (1963), professor of design history at the University of Illinois at Chicago Jonah Raskin (1963), writer, professor on counterculture Howard Spodek (1963), historian specializing in urban studies; professor at Temple University Robert J. Art (1964), professor of international relations at Brandeis University Richard P. Appelbaum (1964), professor of sociology at University of California, Santa Barbara Jonathan R. Cole (1964), sociologist and provost of Columbia University 1989–2003 Peter S. Donaldson (1964), professor of English literature at the Massachusetts Institute of Technology Richard Epstein (1964), libertarian law scholar Richard S. Kayne (1964), professor of linguistics at New York University Peter Kolchin (1964), professor at the University of Delaware and winner of the 1988 Bancroft Prize John H. Langbein (1964), Sterling Professor at Yale Law School Peter K.
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== Alternatives to the wound healing assay == Using label-free live cell imaging devices based on quantitative phase imaging, it has been shown that cell motility is highly correlated to wound healing and transwell assay results. The advantage of this fully automated approach is that quantification of cell motility does not require specific sample preparation, allowing cell proliferation to be simultaneously quantified as well.
During the Cold War, much of the policy and the infrastructure of the Western world and the Eastern Bloc had revolved around the capitalist and communist ideologies, respectively, and the possibility of a nuclear warfare. The end of the Cold War and the fall of the Soviet Union caused profound changes in nearly every society in the world. It enabled renewed attention to be paid to matters that were ignored during the Cold War and has paved the way for greater international cooperation, international organizations, and nationalist movements. The European Union expanded and further integrated, and power shifted from the G7 to the larger G20 economies. The outcome symbolized a victory of democracy and capitalism which became a manner of collective self-validation for countries hoping to gain international respect. With democracy being seen as an important value, more countries began adopting that value. Communism ended also in Mongolia, Congo, Albania, Yugoslavia, Afghanistan, and Angola. As of 2023, only five countries in the world are still ruled as communist states: China, Cuba, North Korea, Laos, and Vietnam.
== Constitutional issues == Several of the convention's provisions are prefaced with the words, "Subject to its constitutional principles and the basic concepts of its legal system, each Party shall ..." According to Fazey, "This has been used by the USA not to implement part of article 3 of the 1988 Convention." Similarly, if a national prohibition on drug possession violated a nation's constitution, those provisions would not be binding on that country.
=== Nonspecific pain === Patients with uncomplicated back pain should be encouraged to remain active and to return to normal activities. The management goals when treating back pain are to achieve maximal reduction in pain intensity as rapidly as possible, to restore the individual's ability to function in everyday activities, to help the patient cope with residual pain, to assess for side effects of therapy and to facilitate the patient's passage through the legal and socioeconomic impediments to recovery. For many, the goal is to keep the pain at a manageable level to progress with rehabilitation, which then can lead to long-term pain relief. Also, for some people the goal is to use nonsurgical therapies to manage the pain and avoid major surgery, while for others surgery may represent the quickest path to pain relief. Not all treatments work for all conditions or for all individuals with the same condition, and many must try several treatment options to determine what works best for them. The present stage of the condition (acute or chronic) is also a determining factor in the choice of treatment. Only a minority of people with back pain (most estimates are 1–10%) require surgery.
== German Mass Spectrometry Society (Deutsche Gesellschaft für Massenspektrometrie, DGMS) == The major awards of the German Mass Spectrometry Society (Deutsche Gesellschaft für Massenspektrometrie, DGMS) are the Mattauch-Herzog Award for Mass Spectrometry, Wolfgang Paul Lecture, Mass Spectrometry in the Life Sciences Award, and Life Science Prize.
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It is a laboratory-made peptide that mimics growth hormone-releasing hormone. It prompts the pituitary gland to release growth hormone and has been studied mainly in adults with HIV-associated lipodystrophy.
Administered growth hormone supplies the hormone directly, while this peptide acts upstream by prompting the pituitary to release it. The indirect route preserves pulsatile secretion and some endogenous feedback, which changes the hormone and IGF-1 profile observed after treatment.
Reductions in visceral adipose tissue appear consistently in randomized trials of the approved population. Effects on peripheral fat, cardiovascular outcomes, and use outside that population are less well established.
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.