The short version of CJC-1295 fits in a sentence. The long version — which is the one that helps — is below.
This page was last updated on 2026-08-01 and is reviewed periodically as new material appears.
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.
Characterization of this peptide relies on a small set of routine techniques. Reversed-phase high-performance liquid chromatography separates the target from truncated or oxidized by-products and yields a purity estimate when paired with ultraviolet detection near 214 nanometers. Mass spectrometry, either electrospray coupled to liquid chromatography or matrix-assisted laser desorption, confirms that the observed mass matches the value calculated for the expected sequence. Amino acid analysis, and enzymatic digestion followed by fragment mapping, are used when the sequence itself rather than the mass requires verification.
Stability depends heavily on physical state. A lyophilized powder kept dry, desiccated, and shielded from light typically holds its integrity for months to years at minus twenty degrees Celsius, and longer at minus eighty. Once dissolved, the peptide becomes far more vulnerable, since peptide bond hydrolysis, oxidation of susceptible residues, and aggregation all proceed faster in solution. Buffers near neutral pH are generally gentler than strongly acidic or alkaline conditions. Repeated freeze-thaw cycles and exposure to air-liquid interfaces during vigorous mixing cause losses that are easy to overlook.
Verification matters because research peptides vary widely in quality. A certificate of analysis is only as reliable as the method behind it, and a single chromatographic trace reveals little about counter-ions, residual solvents, or water content. Independent laboratories commonly pair mass confirmation with chromatographic purity and, where relevant, quantify water along with acetate or trifluoroacetate content. Reported purity figures are not standardized across suppliers, so a stated value such as ninety-eight percent is not directly comparable unless the analytical method, column, and detection wavelength accompany it.
| Property | Value | Notes |
|---|---|---|
| Duration with linker | Several days | Reported in early human work |
| Duration without linker | Tens of minutes | Short plasma residence |
| Albumin attachment site | Cysteine-34 | Covalent maleimide reaction |
| Primary receptor | Pituitary GHRH receptor | Stimulates growth hormone release |
| Downstream marker | Insulin-like growth factor 1 | Indirect measure of activity |
CJC-1295 is a synthetic peptide designed as a long-acting analogue of growth hormone-releasing hormone (GHRH). Its structure derives from the first 29 amino acids of native GHRH, a fragment often called GRF(1-29). Four substitutions were introduced to slow enzymatic breakdown and extend activity relative to the natural sequence. The compound was developed by ConjuChem as part of a broader effort to improve the pharmacokinetic profile of peptide hormones. It is studied in laboratory and clinical research settings rather than appearing as a naturally occurring substance.
Two related forms circulate in technical discussion under the same family name. The original version carries a drug affinity complex (DAC) that binds covalently to serum albumin after administration, and this linkage substantially extends circulation time. A second form, frequently written as modified GRF(1-29) or CJC-1295 without DAC, lacks that linker and clears much faster. The naming is a frequent source of confusion because the shorthand CJC-1295 can refer to either form depending on the source. Reports sometimes fail to specify which variant was studied.
The peptide backbone includes a D-alanine at position two, which resists cleavage by dipeptidyl peptidase IV, and several other substitutions that reduce degradation. Its molecular weight is roughly 3.4 kDa without the linker and about 3.6 kDa with it. The molecule is water soluble and is normally supplied as a lyophilized powder. Precise sequence and mass values depend on which variant is described, so technical documents usually state the exact form being referenced.
Lyophilized peptide powder is comparatively stable when kept dry, cold, and protected from light. Once dissolved, the molecule is vulnerable to deamidation, oxidation, and aggregation, with the rate depending on pH, buffer composition, and temperature. Alkaline conditions and repeated freeze-thaw cycles accelerate loss of the intact peptide. The methionine present in the native sequence is a known oxidation site, which is one reason it was replaced in the modified fragment. Suppliers typically recommend cold storage of solutions and use within a short window.
Analytical confirmation usually relies on reversed-phase high-performance liquid chromatography for purity and on liquid chromatography coupled to mass spectrometry for identity. Mass data reveal the expected molecular mass and can flag truncated or oxidized species. Amino acid analysis and peptide mapping provide sequence-level verification. Immunoassays are used in some biological matrices, but antibodies raised against one releasing-hormone analog may cross-react with another. Reported purity figures depend heavily on the method used, so comparisons between suppliers require matching the analytical approach.
== Forms of hair removal and methods == Depilation is the removal of the part of the hair above the surface of the skin. The most common form of depilation is shaving or trimming. Another option is the use of chemical depilatories, which work by breaking the disulfide bonds that link the protein chains that give hair its strength. Epilation is the removal of the entire hair, including the part below the skin. Methods include waxing, sugaring, epilators, lasers, threading, intense pulsed light or electrology. Hair is also sometimes removed by plucking with tweezers.
=== Variation with gauge === The width between the buffers tends to increase as the track gauge increases and decrease as the track gauge decreases, which means that if wagons are changed from one gauge to another, the buffers might no longer match. That is because the buffers are originally extensions of the frames, which are spaced according to the gauge of the track. As well, the height of the buffers is usually lower on narrow gauge railways, corresponding to the generally lower height of the rolling stock. Therefore, narrow gauge railways often use centre couplers without buffers. However, in the case of Iberian broad gauge railways, the height and spacing of the buffers are the same as for standard gauge railways in Europe including Great Britain, in order to allow through-running of rolling stock by the use of bogie exchange.
=== CMOS-compatible graphene === Integration of graphene in the widely employed CMOS fabrication process demands its transfer-free direct synthesis on dielectric substrates at temperatures below 500 °C. At the IEDM 2018, researchers from University of California, Santa Barbara, demonstrated a novel CMOS-compatible graphene synthesis process at 300 °C suitable for back-end-of-line (BEOL) applications. The process involves pressure-assisted solid-state diffusion of carbon through a thin-film of metal catalyst. The synthesized large-area graphene films were shown to exhibit high quality (via Raman characterization) and similar resistivity values when compared with high-temperature CVD synthesized graphene films of the same cross-section down to widths of 20 nm.
Sources: en.wikipedia.org
=== Science and Technology Council === The Science and Technology Council (STC) coordinates the scientific and technical activities of the IIR. The Science and Technology Council includes five distinct Sections that are divided into ten Commissions. The Science and Technology Council includes:
== Overview == The Japan Furikake Association defines furikake as "seasoned and dried one or more kinds of marine products, agricultural products, livestock products, etc., and mixed with seaweed, sesame seeds, seasonings, and others. Its main use is to be sprinkled (in Japanese: furikake) on rice and other foods." According to this definition, gomashio (sesame salt), which is traditionally sprinkled on red bean rice, and shiso, after being used to season umeboshi (pickled plums) and dried and powdered, are also furikake. Chazuke-no-moto, a mixture that becomes chazuke when hot green tea is poured on it after sprinkling on rice, is also similar to furikake.
One of the earliest systematic attempts of modern nation-states to implement border controls to restrict the entry of particular groups was the policy adopted by Canada, Australia, and America to curtail the immigration of Asians in white settler states in the late 19th and early 20th centuries. The first anti-East Asian policy implemented in this era was the Chinese Exclusion Act of 1882 in America, which was followed by the Chinese Immigration Act of 1885 in Canada, which imposed what came to be called the Chinese head tax. These policies were a sign of injustice and unfair treatment to the Chinese workers because the jobs they engaged in were mostly menial. Similar policies were adopted in various British colonies in Australia over the latter half of the 19th century targeting Asian immigrants arriving as a result of the region's series of gold rushes as well as Kanakas (Pacific Islanders brought into Australia as indentured labourers) who alongside the Asians were perceived by trade unionists and White blue collar workers as a threat to the wages of White settlers. Following the establishment of the Commonwealth of Australia in 1901, these discriminatory border control measures quickly expanded into the White Australia Policy, while subsequent legislation in America (e.g. the Immigration Act of 1891, the Naturalisation Act of 1906, the Immigration Act of 1917, and the Immigration Act of 1924) resulted in an even stricter policy targeting immigrants from both Asia and parts of southern and eastern Europe.
Sources: en.wikipedia.org
The game remained in PC Data's weekly top 10 until the week of March 21 and dropped to position 11 for March as a whole. In the United Kingdom, it placed second in February—behind the debut of Baldur's Gate—and fifth in March. In April, it claimed #3 on Chart-Track's rankings and dropped to #16 on those of PC Data. On April 23, Sierra announced that global sales of Half-Life had reached almost 1 million copies. After maintaining the 16th place for May in the U.S., Half-Life exited PC Data's monthly top 20 in June. Half-Life became the fifth-best-selling PC game of the first half of 1999 in the U.S. Its domestic sales during 1999 reached 290,000 copies by the end of September. During 1999, it was the fifth-best-selling PC game in the U.S., with sales of 445,123 copies. These sales brought in revenues of $16.6 million, the sixth-highest gross that year for a PC game in the U.S. The following year, it was the 16th-best-selling PC game in the U.S., selling another 286,593 copies and earning $8.98 million. Half-Life dominated FPS sales of the period. Robert M. Atkins, the design lead of the FPS Sin, released shortly before Half-Life, said: "Half-Life just crushed the market. It completely changed the first-person shooter narratives." The PlayStation 2 version received a "Silver" sales award from the Entertainment and Leisure Software Publishers Association (ELSPA), indicating sales of 100,000 copies in the UK Half-Life's global sales reached 2.5 million copies by July 2001.
=== Pharmacodynamics === Although the mechanism of action of valproate is not fully understood, traditionally, its anticonvulsant effect has been attributed to the blockade of voltage-gated sodium channels and increased brain levels of the inhibitory synaptic neurotransmitter gamma-aminobutyric acid (GABA). The GABAergic effect is also believed to contribute towards the anti-manic properties of valproate. In animals, sodium valproate raises cerebral and cerebellar levels of GABA, possibly by inhibiting GABA degradative enzymes, such as GABA transaminase, succinate-semialdehyde dehydrogenase and by inhibiting the re-uptake of GABA by neuronal cells. Prevention of neurotransmitter-induced hyperexcitability of nerve cells via Kv7.2 channel and AKAP5 may also contribute to its mechanism. Valproate has been shown to protect against a seizure-induced reduction in phosphatidylinositol (3,4,5)-trisphosphate (PIP3) as a potential therapeutic mechanism.
Adolfo Suárez formed a government of young Francoist "reformists", in which he did not include any prominent figures ─ Fraga and Areilza, refused to participate ─ but which did not lack political experience. In his first statement, made before the TVE cameras, the new president presented his "reformist" project which contained important novelties of language and objectives and which caused a great impact on the majority of the population. He stated that his goal was to achieve "that the governments of the future be the result of the free will of the majority of Spaniards" and, after expressing his conviction that sovereignty resided in the people, he announced that they would express themselves freely in a general election to be called for before June 30 of the following year. It was a matter of "elevating to the category of normal what at street level is simply normal." Finally, Suárez announced that the "political reform" to be undertaken would be submitted to a referendum. The Political Reform Act bill, which was drafted jointly by the president of the Cortes, Torcuato Fernández Miranda, the vice-president of the government Alfonso Osorio and the Minister of Justice Landelino Lavilla, was very simple. A new Cortes was created, consisting of two chambers, the Congress of Deputies and the Senate, composed of 350 and 204 members respectively and elected by universal suffrage, except for the senators appointed by the king. And at the same time, all the institutions established in the fundamental laws other than the Cortes were implicitly abolished, i.e.
On the basis of the data available, the Panel concludes that a cause-and-effect relationship has been established between the consumption of beta-glucans and the "reduction of blood cholesterol concentrations." The following wording reflects the scientific evidence: "Regular consumption of beta-glucans contributes to maintenance of normal blood cholesterol concentrations." In order to bear the claim, foods should provide at least 3 g/d of beta-glucans from oats, oat bran, barley, barley bran, or mixtures of non-processed or minimally processed beta-glucans in one or more servings. The target population is adults with normal or mildly elevated blood cholesterol concentrations. In November 2011, the EU Commission published its decision in favour of oat beta-glucans with regard to Article 14 of the EC Regulation on the labelling of foodstuffs with nutrition and health claim statements permitting oat beta-glucan to be described as beneficial to health. Following the opinion of the Panel on Dietetic Products, Nutrition and Allergies (NDA) the EFSA and the Regulation (EU) no. 1160/2011 of the Commission, foodstuffs through which 3 g/day of oat beta-glucan are consumed (1 g of oat beta-glucan per portion) are allowed to display the following health claim: "Oat beta-glucan reduces the cholesterol level in the blood.
Sources: en.wikipedia.org
A maleimide moiety reacts with the thiol of cysteine-34, forming a covalent bond. The reaction occurs in circulation without enzymatic catalysis.
The group is intended to alter distribution and persistence, not receptor engagement. The peptide portion still binds the pituitary receptor, so the primary difference is duration rather than potency.
Not firmly. Early reports describe several days for the extended form, but independent confirmations are sparse, and values vary with assay method and study design.
Mass spectrometry establishes whether the observed molecular weight matches the calculated sequence mass. Chromatographic retention and fragment mapping add further confidence about sequence and composition. A single technique alone is rarely treated as sufficient evidence of identity.