A practical reference on visceral adiposity: what it is, how it behaves, what the literature reports, and where the honest uncertainties sit.
Reviewed 2026-02-17. Anything still debated is marked as such rather than presented as settled.
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.
Clinical interest in tesamorelin arose from the need to address visceral adiposity in people living with HIV. Antiretroviral therapy improved survival but was associated in some patients with central fat accumulation, altered lipid profiles, and metabolic complications. This condition, often called HIV-associated lipodystrophy, involves excess visceral adipose tissue that is difficult to manage through diet and exercise alone. Investigators evaluated tesamorelin because GHRH analogs can stimulate growth hormone secretion and influence fat distribution without direct liposuction or invasive procedures.
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 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.
| Property | Value | Notes |
|---|---|---|
| Molecular weight | Approximately 5,136 Da | Based on the 44-amino-acid peptide backbone and N-terminal modification. |
| Appearance | White to off-white lyophilized powder | Usually supplied in single-use vials for reconstitution. |
| Solubility | Freely soluble in water; slightly soluble in some organic solvents | Peptide nature supports aqueous reconstitution. |
| Typical storage | 2–8 °C, protected from light | Refrigeration reduces degradation; avoid freezing unless specified. |
| Common analytical method | Reverse-phase high-performance liquid chromatography | Used for identity, purity, and quantification. |
| Synonyms | Tesamorelin, TH9507, GHRH(1-44) analog | Generic descriptors; avoid proprietary names. |
=== 1963-1967 === In 1963, the Los Angeles Rams acquired Rosey Grier from the New York Giants to play right defensive tackle. Grier joined Lamar Lundy (right defensive end), and future Hall of Famers Merlin Olsen (left defensive tackle) and Deacon Jones (left defensive end) on the team's starting defensive line. In 1964, the Rams' publicity office began using the "Fearsome Foursome" name to describe the team's defensive line, reportedly following the Chargers example. It was the Rams' Fearsome Foursome, however, that became the standard by which future teams' defensive lines were measured. Hall of Fame linebacker, and one of the NFL's greatest defensive players, Dick Butkus called them "the most dominant line in football history." The Associated Press’s obituary of Jones called the Rams line unblockable at times, and reported descriptions of Jones as the paradigm for all the great defensive ends that followed, an “icon among icons” and the “‘greatest defensive end of modern football’”. Grier missed the 1967 season with a ruptured Achilles tendon (and retired before the 1968 season). In September 1967, the Rams traded three high draft choices, including the Rams No. 1 pick in the 1968 draft, to the Detroit Lions for the Lions' Fearsome Four tackle Roger Brown to replace Grier. Brown joined the Rams' Fearsome Foursome, where he played with Jones, Olsen and Lundy from 1967 to 1969. Brown made the Pro Bowl in 1967 (his sixth consecutive appearance). In 2018, USA Today Sportswriter Jim Reineking rated the 1967 Rams line as the greatest ever.
Trypanothione is an unusual form of glutathione containing two molecules of glutathione joined by a spermidine (polyamine) linker. It is found in parasitic protozoa such as leishmania and trypanosomes. These protozoal parasites are the cause of leishmaniasis, sleeping sickness and Chagas' disease. Trypanothione was discovered by Alan Fairlamb. Its structure was proven by chemical synthesis. It is present mainly in the Kinetoplastida but can be found in other parasitic protozoa such as Entamoeba histolytica. Since this thiol is absent from humans and is essential for the survival of the parasites, the enzymes that make and use this molecule are targets for the development of new drugs to treat these diseases. Trypanothione-dependent enzymes include reductases, peroxidases, glyoxalases and transferases. Trypanothione-disulfide reductase (TryR) was the first trypanothione-dependent enzyme to be discovered (EC 1.8.1.12). It is an NADPH-dependent flavoenzyme that reduces trypanothione disulfide. TryR is essential for survival of these parasites both in vitro and in the human host. A major function of trypanothione is in the defence against oxidative stress. Here, trypanothione-dependent enzymes such as tryparedoxin peroxidase (TryP) reduce peroxides using electrons donated either directly from trypanothione, or via the redox intermediate tryparedoxin (TryX). Trypanothione-dependent hydrogen peroxide metabolism is particularly important in these organisms because they lack catalase.
=== Closing ceremony === The closing ceremony took place before the World Cup final at MetLife Stadium in New Jersey, and featured performances by Laura Pausini, Nicole Scherzinger, Robbie Williams, IShowSpeed, and Post Malone, as well as an appearance from Tom Cruise. Jennifer Hudson performed "The Star-Spangled Banner".
Sources: en.wikipedia.org
== Sources == Schmitt, Michael; Mayerhöfer, Thomas; Popp, Jürgen; Kleppe, Ingo; Weisshartannée, Klaus (2013). Handbook of Biophotonics, Chap.3 Light–Matter Interaction. Wiley. doi:10.1002/9783527643981.bphot003. ISBN 978-3-527-64398-1. S2CID 93908151. Pavone, Francesco S.; Campagnola, Paul J. (2016). Second Harmonic Generation Imaging, 2nd edition. CRC Taylor&Francis. ISBN 978-1-4398-4914-9. Campagnola, Paul J.; Clark, Heather A.; Mohler, William A.; Lewis, Aaron; Loew, Leslie M. (2001). "Second harmonic imaging microscopy of living cells" (PDF). Journal of Biomedical Optics. 6 (3): 277–286. Bibcode:2001JBO.....6..277C. doi:10.1117/1.1383294. hdl:2047/d20000323. PMID 11516317. S2CID 2376695. Campagnola, Paul J.; Loew, Leslie M (2003). "Second-harmonic imaging microscopy for visualizing biomolecular arrays in cells, tissues and organisms" (PDF). Nature Biotechnology. 21 (11): 1356–1360. doi:10.1038/nbt894. PMID 14595363. S2CID 18701570. Archived from the original (PDF) on 2016-03-04. Stoller, P.; Reiser, K.M.; Celliers, P.M.; Rubenchik, A.M. (2002). "Polarization-modulated second harmonic generation in collagen". Biophys. J. 82 (6): 3330–3342. Bibcode:2002BpJ....82.3330S. doi:10.1016/s0006-3495(02)75673-7. PMC 1302120. PMID 12023255. Han, M.; Giese, G.; Bille, J. F. (2005). "Second harmonic generation imaging of collagen fibrils in cornea and sclera". Opt. Express. 13 (15): 5791–5797. Bibcode:2005OExpr..13.5791H. doi:10.1364/opex.13.005791. PMID 19498583. König, Karsten (2018). Multiphoton Microscopy and Fluorescence Lifetime Imaging - Applications in Biology and Medicine.
(The times are half-lives.) Plutonium-239 is further irradiated by a source that has a high neutron flux, several times higher than a conventional nuclear reactor, such as the 85-megawatt High Flux Isotope Reactor (HFIR) at the Oak Ridge National Laboratory in Tennessee, US. The higher flux promotes fusion reactions involving not one but several neutrons, converting 239Pu to 244Cm and then to 249Cm:
=== Punic Wars === Between 264 and 251 BCE the First Punic War was fought in Sicily, between Rome and Carthage, which ended with the creation of the Roman province of Sicily. Following the Carthaginian provocation with the siege of Saguntum, Spain, the Second Punic War broke out in 217 BCE. The Carthaginian general Hannibal, after taking Saguntum and Marseille, crossed the Alps and defeated the Romans at the Trebbia River, the Ticino River, Lake Trasimeno, and in 216 BCE at Cannae, in Apulia. After the victory at Cannae, Hannibal achieved his first important political-strategic result. He made a brief raid on the Roman Ager before retiring to Capua. Hannibal sent his brother Mago with part of his forces into Bruttium to accommodate the surrender of cities that abandoned the Romans and to force out the rest. The people of Petelia, who remained loyal to the Romans, were attacked by the occupying Carthaginians and by the Bruttians who had allied with Hannibal. After an 11-month siege. Because the Romans were unable to help them, with Roman consent, they surrendered. Hannibal led his army to Cosenza, which, after a less harsh defense, fell to the Carthaginians. An army of Bruttians besieged and occupied another Greek city, Croton, except for the fortress, which was inhabited by less than 2,000 people. The Locrians passed to the Bruttians and the Carthaginians. Only the Regginians preserved their loyalty to Rome and their independence.
Sources: en.wikipedia.org
Hydrogels with reversible chemistry are required to allow for fluidization during injection/printing followed by self-healing of the original hydrogel structure. Investigate cell biomechanical functions combined with holotomography microscopy Provide absorption, desloughing and debriding of necrotic and fibrotic tissue Tissue engineering scaffolds. When used as scaffolds, hydrogels may contain human cells to repair tissue. They mimic 3D microenvironment of cells. Materials include agarose, methylcellulose, hyaluronan, elastin-like polypeptides, and other naturally derived polymers. Sustained-release drug delivery systems. Ionic strength, pH and temperature can be used as a triggering factor to control the release of the drug. Light-stimulated drug release systems. Using light as an exogenous stimulus, temporal control also opens possibilities for on-off switchable release of molecular cargoes through hydrogel-polymersome composites. The swelling behavior exhibited by charged hydrogels can be used as a valuable tool for investigating interactions between charged polymers and various species, including multivalent ions, peptides, and proteins. This response arises due to fluctuating osmotic swelling forces resulting from the exchange of counterions within the gel matrix. Particularly significant is its application in assessing the binding of peptide drugs to biopolymers within the body, as the swelling response of the gel can provide insights into these interactions. Window coating/replacement: Hydrogels are under consideration for reducing infrared light absorption by 75%.
== Bibliography == Balaban, Naomi (2008). The Handy Anatomy Answer Book. Visible Ink Press. ISBN 978-1-57859-190-9. Barnes, Edward E.; Fox, Richard S.; Barnes, Robert D. (2003). Invertebrate zoology : a functional evolutionary approach (7. ed.). Belmont, Calif. [u.a.]: Thomson, Brooks/Cole. ISBN 0-03-025982-7. Forbes, R. M.; Mitchell, H. H.; Cooper, A. R. (1956). "Further studies on the gross composition and mineral elements of the adult human body". Journal of Biological Chemistry. 223 (2). American Society for Biochemistry and Molecular Biology: 969–975. doi:10.1016/S0021-9258(18)65095-1. PMID 13385244. Mish, Frederick C., ed. (2003). Merriam-Webster's Collegiate Dictionary (11th ed.). Merriam-Webster. ISBN 978-0-87779-807-1. Nasoori, Alireza (2020). "Formation, structure, and function of extra-skeletal bones in mammals". Biological Reviews. 95 (4). Cambridge Philosophical Society: 986–1019. doi:10.1111/brv.12597. PMID 32338826. S2CID 216556342. Pechenik, Jan A. (2015). Biology of the Invertebrates (7th ed.). McGraw-Hill Education. ISBN 978-0-07-352418-4. Reynolds, William W.; Karlotski, William J. (1977). "The Allometric Relationship of Skeleton Weight to Body Weight in Teleost Fishes: A Preliminary Comparison with Birds and Mammals". Copeia. 1977 (1). American Society of Ichthyologists and Herpetologists: 160–163. doi:10.2307/1443520. JSTOR 1443520. Ruppert, Edward E.; Fox, Richard S.; Barnes, Robert D. (2003). Invertebrate Zoology (7th ed.). Thomson, Brooks/Cole. ISBN 978-0-03-025982-1. Stein, Lisa (2007). Body: The Complete Human. National Geographic Society.
Collagen alpha-1(VII) chain is a protein that in humans is encoded by the COL7A1 gene. It is composed of a triple helical, collagenous domain flanked by two non-collagenous domains, and functions as an anchoring fibril between the dermal-epidermal junction in the basement membrane. Mutations in COL7A1 cause all types of dystrophic epidermolysis bullosa, and the exact mutations vary based on the specific type or subtype. It has been shown that interactions between the NC-1 domain of collagen VII and several other proteins, including laminin-5 and collagen IV, contribute greatly to the overall stability of the basement membrane.
However, we insisted on: national character of Charter, freedom of immigration and internal autonomy, and at the same time full rights of citizenship to [illegible] and Jews in Palestine." In Sykes's mind, the agreement which bore his name was outdated even before it was signed – in March 1916, he wrote in a private letter: "to my mind the Zionists are now the key of the situation". In the event, neither the French nor the Russians were enthusiastic about the proposed formulation and eventually on 4 July, Wolf was informed that "the present moment is inopportune for making any announcement." These wartime initiatives, inclusive of the declaration, are frequently considered together by historians because of the potential, real or imagined, for incompatibility between them, particularly in regard to the disposition of Palestine. In the words of Professor Albert Hourani, founder of the Middle East Centre at St Antony's College, Oxford: "The argument about the interpretation of these agreements is one which is impossible to end, because they were intended to bear more than one interpretation."
Sources: en.wikipedia.org
It is a synthetic peptide analog of human growth hormone-releasing hormone. It is used clinically to reduce excess visceral abdominal fat in adults with HIV-associated lipodystrophy. It works by stimulating pituitary growth hormone release.
Pivotal trials enrolled adults with HIV and excess visceral abdominal fat, often in the context of antiretroviral therapy. Participants were assessed mainly by computed tomography for visceral adipose tissue. The approved indication remains specific to that population.
Long-term effects on cardiovascular events, mortality, and sustained fat distribution are not well established. Most trials measured changes over months rather than years. Open questions also include whether benefits persist after treatment stops.
The principal difference is a chemical cap on the N-terminal tyrosine that prevents rapid enzymatic cleavage. Native GHRH is degraded within minutes in plasma, whereas the modified peptide persists considerably longer. The amino acid backbone otherwise mirrors the natural hormone.