CJC-1295 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.
Last reviewed on 2025-12-20. Where a claim depends on a specific study, the study is described rather than over-claimed.
The peptide backbone corresponds to GRF(1-29), the first 29 residues of native growth hormone-releasing hormone, which retains most of the receptor-activating activity of the full-length molecule. Four substitutions distinguish the analog from the natural sequence: D-alanine at position 2, glutamine at position 8, alanine at position 15, and leucine at position 27. These changes slow cleavage by dipeptidyl peptidase IV, the enzyme that degrades native hormone in plasma within minutes. The outcome is improved enzymatic stability combined with a still brief residence time when no additional modification is present.
Naming in this area is inconsistent, and readers should treat product labels with care. In much of the literature and in vendor catalogs, the unqualified term refers to the albumin-binding version, while the version lacking the DAC group appears as modified GRF(1-29), mod GRF(1-29), or the same name with a without-DAC qualifier. Because one abbreviation has been applied to both materials, the only reliable way to identify a sample is to check the stated sequence and the presence of the linker.
Receptor level activity follows the canonical GHRH pathway. The peptide binds the GHRH receptor, a class B G protein coupled receptor on somatotroph cells of the anterior pituitary. Binding raises intracellular cyclic AMP, which promotes calcium entry and the release of growth hormone into the bloodstream. Because the molecule acts at the same receptor as the endogenous hormone, its effect is superimposed on the natural pulsatile rhythm rather than replacing it. Whether sustained receptor occupation leads to desensitization is not fully settled.
CJC-1295 belongs to a class of synthetic peptides modeled on growth hormone releasing hormone, a forty-four amino acid signal produced by the hypothalamus. The compound is built from the first twenty-nine residues of the natural sequence, with four substitutions introduced at positions 2, 8, 15 and 27. These changes were designed to slow enzymatic breakdown while preserving receptor activation. The result is a peptide that is shorter than native GHRH and considerably more resistant to ordinary clearance pathways in circulation.
Two related forms appear under the CJC-1295 name. The simpler analogue, commonly written as modified GRF(1-29), carries the four substitutions but no additional conjugation. The second form attaches a maleimidopropionic acid linker to a lysine residue, a modification frequently called the drug affinity complex. That linker reacts with the free thiol on serum albumin to form a covalent bond. Because albumin has a long residence time in blood, the conjugated peptide stays in circulation far longer than the unconjugated analogue.
| Property | Value | Notes |
|---|---|---|
| Molecular class | Synthetic peptide | GHRH analog, not a steroid |
| Backbone length | 29 amino acids | Based on GRF(1-29) |
| Substitutions | Four positions | D-Ala2, Gln8, Ala15, Leu27 |
| Appearance | White to off-white powder | Typical lyophilized research material |
| Common synonyms | Modified GRF(1-29) | Usage varies between sources |
Two forms circulate in research settings and are frequently confused. One carries the drug affinity complex and is often written as CJC-1295 with DAC; the other lacks that group and is usually called modified GRF(1-29). The two share the same core sequence but differ sharply in how long they persist in blood. Products labelled only as CJC-1295 normally refer to the version carrying the complex. Documentation that omits the distinction leaves the intended molecule ambiguous.
CJC-1295 is a synthetic peptide built as a long-acting analogue of growth hormone-releasing hormone. Its backbone matches the first twenty-nine residues of the natural human hormone, with four amino acid substitutions added to slow enzymatic breakdown. A reactive maleimide group, commonly termed the drug affinity complex, allows the peptide to attach to circulating albumin after administration. That albumin attachment keeps the molecule in the bloodstream for an extended period instead of being cleared within minutes.
Enzymatic protection is a separate mechanism from plasma protein binding. The four substitutions in the backbone reduce recognition by dipeptidyl peptidase IV, which normally cleaves the natural hormone within minutes. Without the reactive group, this resistance still yields only a short window of activity, generally reported in the range of tens of minutes. With it, reported half-lives in early human work extended to several days. The size of that gap is the main practical distinction between the two materials.
Both forms act at the pituitary receptor for growth hormone-releasing hormone and increase growth hormone output, which in turn raises insulin-like growth factor 1. A long-acting analog produces sustained rather than pulsatile stimulation, and the physiological consequences of that pattern are not fully settled. Published human data on the extended form remain limited, and much of what circulates in discussion traces to early company reports rather than independent replication. How sustained exposure affects normal feedback remains an open question.
The distinguishing feature of the DAC form is a maleimide-containing group that reacts with the free thiol of cysteine-34 on human serum albumin. This reaction forms a covalent bond without enzymatic assistance, and it takes place after the peptide enters the bloodstream. Because albumin is abundant and long-lived, the attached peptide is carried through circulation far longer than an unmodified fragment would survive. The chemistry is a deliberate pharmacokinetic strategy rather than a change to receptor activity.
The 2008 Chinese milk scandal was a significant food safety incident in China. The scandal involved Sanlu Group's milk and infant formula along with other food materials and components being adulterated with the chemical melamine, which resulted in kidney stones and other kidney damage in infants. The chemical was used to increase the nitrogen content of diluted milk, giving it the appearance of higher protein content in order to pass quality control testing. 300,000 affected children were identified, among which 54,000 were hospitalized, according to the latest report in January 2009. The deaths of six babies were officially concluded to be related to the contaminated milk. The timeline of the scandal dated back to December 2007, when Sanlu began to receive complaints about kidney stones. An early complaint was made on 20 May 2008, when a mother posted online after she learnt that Sanlu had donated the milk she had been complaining about to the orphans of the 2008 Sichuan earthquake. Also on 20 May, the problem was raised at Sanlu's Board meeting for the first time and they ordered multiple third-party tests. The culprit, melamine, was undetected in the tests until 1 August.
α-Ketoglutaric acid (AKG) is an organic compound with the formula HO2CCO(CH2)2CO2H. A white, nontoxic solid, it is a common dicarboxylic acid. Relevant to its biological roles, it exists in water as its conjugate base α-ketoglutarate. It is also classified as a 2-ketocarboxylic acid. β-Ketoglutaric acid is an isomer. "Ketoglutaric acid" and "ketoglutarate", when not qualified as α or β, almost always refers respectively to α-ketoglutaric acid or α-ketoglutarate. α-Ketoglutarate is an intermediate in the citric acid cycle, a set of cyclic reactions that supplies energy to cells. It is also an intermediate in or product of several other metabolic pathways. These include its being a component of metabolic pathways that: make amino acids and in the process regulate the cellular levels of carbon, nitrogen, and ammonia; reduce the cellular levels of potentially toxic reactive oxygen species; and synthesize the neurotransmitter γ-aminobutyric acid (GABA). A large body of preclinical (i.e., conducted in animal models of disease or on animal or human tissues) research has been conducted on the role of endogenous (generated within the body) α-ketoglutarate. A small amount of preclinical research has been done to determine the effects of providing additional exogenous α-ketoglutarate to biological systems. There is currently no randomized controlled trials showing α-ketoglutarate to have any pharmacological (drug-like) effects on humans. The Food and Drug Administration classifies α-ketoglutaric acid as "503A Category 3: Bulk Drug Substances Nominated Without Adequate Support".
Fever is an important metric for the diagnosis of disease in domestic animals. The body temperature of animals, which is taken rectally, is different from one species to another. For example, a horse is said to have a fever above 101 °F (38.3 °C). In species that allow the body to have a wide range of "normal" temperatures, such as camels, whose body temperature varies as the environmental temperature varies, the body temperature which constitutes a febrile state differs depending on the environmental temperature. Fever can also be behaviorally induced by invertebrates that do not have immune-system based fever. For instance, some species of grasshopper will thermoregulate to achieve body temperatures that are 2–5 °C higher than normal to inhibit the growth of fungal pathogens such as Beauveria bassiana and Metarhizium acridum. Honeybee colonies are also able to induce a fever in response to a fungal parasite Ascosphaera apis.
=== Pharmacodynamics === Desloratadine is a selective H1-antihistamine which functions as an inverse agonist at the histamine H1 receptor. At very high doses, is also an antagonist at various subtypes of the muscarinic acetylcholine receptors. This effect is not relevant for the drug's action at therapeutic doses.
== Catabolic hormones == There are many signals that control catabolism. Most of the known signals are hormones and the molecules involved in metabolism itself. Endocrinologists have traditionally classified many of the hormones as anabolic or catabolic, depending on which part of metabolism they stimulate. The so-called classic catabolic hormones known since the early 20th century are cortisol, glucagon, and adrenaline (and other catecholamines). In recent decades, many more hormones with at least some catabolic effects have been discovered, including cytokines, orexin (known as hypocretin), and melatonin.
Sources: en.wikipedia.org
=== Compounds === Solid radium compounds are white as radium ions provide no specific coloring, but they gradually turn yellow and then dark over time due to self-radiolysis from radium's alpha decay. Insoluble radium compounds coprecipitate with all barium, most strontium, and most lead compounds. Radium oxide (RaO) is poorly characterized, as the reaction of radium with air results in the formation of radium nitride. Radium hydroxide (Ra(OH)2) is formed via the reaction of radium metal with water, and is the most readily soluble among the alkaline earth hydroxides and a stronger base than its barium congener, barium hydroxide. It is also more soluble than actinium hydroxide and thorium hydroxide: these three adjacent hydroxides may be separated by precipitating them with ammonia. Radium chloride (RaCl2) is a colorless, luminescent compound. It becomes yellow after some time due to self-damage by the alpha radiation given off by radium when it decays. Small amounts of barium impurities give the compound a rose color. It is soluble in water, though less so than barium chloride, and its solubility decreases with increasing concentration of hydrochloric acid. Crystallization from aqueous solution gives the dihydrate RaCl2·2H2O, isomorphous with its barium analog. Radium bromide (RaBr2) is also a colorless, luminous compound. In water, it is more soluble than radium chloride. Like radium chloride, crystallization from aqueous solution gives the dihydrate RaBr2·2H2O, isomorphous with its barium analog.
Protein phosphorylation, a post-translational modification, helps to regulate protein function and involves the phosphorylation of amino acids with hydroxyl groups in their side chains (among eukaryotes). Serine, threonine, and tyrosine amino acids are common targets of phosphorylation. Phosphorylation of Hsp70 has become a point of greater exploration in scientific literature relatively recently. A 2020 publication suggests that phosphorylation of a serine residue between the NBD and substrate binding domain in yeast Hsp70s leads to a dramatic reduction of the normal Hsp70 heat shock response. This deactivation via phosphorylation of a protein is a common motif in protein regulation, and demonstrates how relatively small changes to protein structure can have biologically significant effects on protein function.
The Colombian Football Federation appointed Pinto as Rueda's successor in December 2006. Colombia were eliminated in the group stage of the 2007 Copa América, before Pinto was dismissed in September 2008 following a 1–0 home defeat by Uruguay and a 4–0 loss to Chile in Santiago. Lara, formerly the federation's youth-team coach, initially replaced him on an interim basis. Under Lara, Colombia finished seventh of ten teams in the 2010 World Cup qualifiers, with 23 points and 14 goals in 18 matches. They were level on points and goal difference with sixth-placed Ecuador, but ranked below them on goals scored. A 4–2 home defeat to Chile on 10 October 2009 confirmed elimination, and Lara resigned after the campaign.
== Brewing == While colloquially named “tea,” peppermint tea is actually an infusion, or tisane. True teas (such as black, green, oolong, and white tea) are all derived from the Camellia sinensis plant, while tisanes are made from the flowers, leaves, roots, seeds, bark, or berries of a variety of different plants. Like true teas, mint tea may be consumed hot or cold, and served with milk or sweeteners such as sugar or honey. True teas contain caffeine and tannins, compounds that can produce a bitter taste. The levels of these compounds in a cup of tea can vary based on steeping time and water temperature. To achieve a pleasant drinking experience, true teas are prepared using specific brewing times and temperature ranges. Mint tea, as a tisane, does not contain these compounds at similarly high concentrations, making it less prone to bitterness from oversteeping, allowing for a wider range of steeping times and temperatures.
=== Insect === The Drosophila melanogaster genome contains 29 serpin encoding genes. Amino acid sequence analysis has placed 14 of these serpins in serpin clade Q and three in serpin clade K with the remaining twelve classified as orphan serpins not belonging to any clade. The clade classification system is difficult to use for Drosophila serpins and instead a nomenclature system has been adopted that is based on the position of serpin genes on the Drosophila chromosomes. Thirteen of the Drosophila serpins occur as isolated genes in the genome (including Serpin-27A, see below), with the remaining 16 organised into five gene clusters that occur at chromosome positions 28D (2 serpins), 42D (5 serpins), 43A (4 serpins), 77B (3 serpins) and 88E (2 serpins). Studies on Drosophila serpins reveal that Serpin-27A inhibits the Easter protease (the final protease in the Nudel, Gastrulation Defective, Snake and Easter proteolytic cascade) and thus controls dorsoventral patterning. Easter functions to cleave Spätzle (a chemokine-type ligand), which results in toll-mediated signaling. As well as its central role in embryonic patterning, toll signaling is also important for the innate immune response in insects. Accordingly, serpin-27A also functions to control the insect immune response. In Tenebrio molitor (a large beetle), a protein (SPN93) comprising two discrete tandem serpin domains functions to regulate the toll proteolytic cascade. Serpins have been found in tick saliva, suppressing T lymphocyte production and inhibiting expression of TNF-α, IFN-γ, and IL-6.
Sources: en.wikipedia.org
=== Early career === Casey made her professional debut in 2013 defeating Kelly Warren by rear naked choke. Casey was then submitted by Pearl Gonzalez by armbar in her second fight. After the loss Casey signed with the Middle Eastern promotion PXC before going on a three fight win streak, finishing all of her opponents.
== Mechanism == It is a highly cationic peptide that binds to either heparin or low molecular weight heparin (LMWH) to form a stable ion pair, which does not have anticoagulant activity. The ionic complex is then removed and broken down by the reticuloendothelial system. In large doses, protamine sulfate may also have an independent — however weak — anticoagulant effect.
The insulin/IGF/relaxin family is a group of evolutionarily related proteins which possess a variety of hormonal activities. In humans, these proteins are divided into two subsets: 1) insulin and insulin-like growth factors 2) relaxin family peptides:
In the 20th century, the town was led by Sardar Ajit Singh, who is credited with protecting local Muslim families during the 1947 Partition. The area also saw migration from the Ranas of Kuthar, who became major landowners. Today, the historical legacy survives through the 500-year-old Shiv Temple and the Manimajra Fort, which served as a filming location for the movie Zero Dark Thirty. Manimajra Shiv Temple and Thakurdwara is 500 to 600 years old, and was built by the rulers of the area. Shiv temple has Shiva as the main deity and Thakurdwara has Rama, Sita, and Hanuman as chief deities.
Sources: en.wikipedia.org
No. It is a laboratory-made analog of growth hormone-releasing hormone. The natural hormone is a 44-residue peptide, while the analog is built on a shorter 29-residue fragment.
The original material included a linker that binds serum albumin. A later variant removed that linker to reduce the duration of action. Catalogs and papers did not consistently adopt separate names, so both remain widely labeled with the same term.
The amino acid sequence and the presence or absence of the linker group. Mass measured by spectrometry gives an independent check that separates the two forms.
The names are often used interchangeably in casual writing, but they are not strictly identical. Modified GRF(1-29) refers to the unconjugated analogue carrying only the four substitutions. The version sold as CJC-1295 with DAC includes the albumin binding linker and clears much more slowly.