The short version of GHRH receptor fits in a sentence. The long version — which is the one that helps — is below.
This page was last updated on 2026-01-04 and is reviewed periodically as new material appears.
CJC-1295 acts at the growth hormone-releasing hormone receptor, a G-protein-coupled receptor found on somatotroph cells in the anterior pituitary. Binding triggers a rise in cyclic AMP and calcium entry, which promotes release of stored growth hormone. Because the peptide mimics the body's own releasing hormone, it amplifies existing secretory pulses rather than driving continuous output. The size of the response therefore depends partly on the subject's own hormonal rhythm and feedback state.
The attached maleimide group explains the unusual duration of the DAC version. After injection it reacts with the thiol of cysteine-34 on serum albumin, forming a stable covalent bond. The resulting conjugate is too large for rapid kidney filtration and is shielded from many peptidases. Reported half-lives for this form reach several days, whereas the version without the group is cleared in roughly half an hour. That gap is the main pharmacological difference between the two.
CJC-1295 belongs to a family of synthetic peptides modeled on growth hormone-releasing hormone, the hypothalamic signal that prompts the pituitary to release growth hormone. The compound is built from the first twenty-nine amino acids of the natural human sequence, a fragment that retains full receptor binding capacity. Native growth hormone-releasing hormone is degraded quickly in circulation, so the fragment alone has limited practical value. Early work therefore focused on chemical modifications that preserve receptor binding while slowing enzymatic breakdown. The result is a molecule described in the literature as a long-acting analog of the natural hormone.
Two forms circulate under the CJC-1295 name, and they differ by a single appended group. The version without a drug affinity complex carries four substitutions along the peptide chain, including a D-alanine near the amino terminus and replacements at three other positions. These changes block the enzyme dipeptidyl peptidase IV and remove a methionine residue that is prone to oxidation. The modified fragment is frequently labeled MOD GRF 1-29. Naming conventions are inconsistent across informal sources, which is a common source of confusion.
| Property | Value | Notes |
|---|---|---|
| Primary target | GHRH receptor | G-protein-coupled receptor on pituitary somatotrophs |
| Half-life, long-acting form | Several days | Extended by covalent albumin binding |
| Half-life, short form | About 30 minutes | Cleared rapidly by peptidases and kidneys |
| Route in studies | Subcutaneous injection | Used in the published human trials |
| Main measured effect | Rise in GH and IGF-1 | Surrogate markers rather than clinical endpoints |
However, the failure of D2 dopamine receptor antagonism, or dopamine receptor dysfunction, do not fully explain the presenting symptoms and signs of NMS, as well as the occurrence of NMS with atypical antipsychotic drugs with lower D2 dopamine activity. This has led to the hypothesis of sympathoadrenal hyperactivity (results from removing tonic inhibition from the sympathetic nervous system) as a mechanism for NMS. Release of calcium is increased from the sarcoplasmic reticulum with antipsychotic usage. This can result in increased muscle contractility, which can play a role in the breakdown of muscle, muscle rigidity, and hyperthermia. Some antipsychotic drugs, such as typical antipsychotics, are known to block dopamine receptors; other studies have shown that when drugs supplying dopamine are withdrawn, symptoms similar to NMS present themselves. In support of the sympathoadrenal hyperactivity model, it has been hypothesized that a defect in calcium regulatory proteins within the sympathetic neurons may bring about the onset of NMS. This model of NMS strengthens its suspected association with malignant hyperthermia in which NMS may be regarded as a neurogenic form of this condition which itself is linked to defective calcium-related proteins. There is also thought to be considerable overlap between malignant catatonia and NMS in their pathophysiology, the former being idiopathic and the latter being the drug-induced form of the same syndrome.
=== Sinai === Since at least the First Dynasty (3000 BCE) in ancient Egypt, and possibly before then, turquoise was used by the Egyptians and was mined by them in the Sinai Peninsula. This region was known as the Country of Turquoise by the native Monitu. There are six mines in the peninsula, all on its southwest coast, covering an area of some 650 km2 (250 sq mi). The two most important of these mines, from a historical perspective, are Serabit el-Khadim and Wadi Maghareh, believed to be among the oldest of known mines. The former mine is situated about 4 kilometres from an ancient temple dedicated to the deity Hathor. The turquoise is found in sandstone that is, or was originally, overlain by basalt. Copper and iron workings are present in the area. Large-scale turquoise mining is not profitable today, but the deposits are sporadically quarried by Bedouin peoples using homemade gunpowder. In the rainy winter months, miners face a risk from flash flooding; even in the dry season, death from the collapse of the haphazardly exploited sandstone mine walls may occur. The colour of Sinai material is typically greener than that of Iranian material but is thought to be stable and fairly durable. Often referred to as "Egyptian turquoise", Sinai material is typically the most translucent, and under magnification, its surface structure is revealed to be peppered with dark blue discs not seen in material from other localities.
Acetate CH3COO− (acetic acid) Carbonate CO2−3 (carbonic acid) Chloride Cl− (hydrochloric acid) Citrate HOC(COO−)(CH2COO−)2 (citric acid) Cyanide C≡N− (hydrocyanic acid) Fluoride F− (hydrofluoric acid) Nitrate NO−3 (nitric acid) Nitrite NO−2 (nitrous acid) Oxide O2− (water) Phosphate PO3−4 (phosphoric acid) Sulfate SO2−4 (sulfuric acid) Salts with varying number of hydrogen atoms replaced by cations as compared to their parent acid can be referred to as monobasic, dibasic, or tribasic, identifying that one, two, or three hydrogen atoms have been replaced; polybasic salts refer to those with more than one hydrogen atom replaced. Examples include:
Rhodesian Bush War historical research / discussion forum Ironing the lawn in Salisbury – the last days of Rhodesia (The Guardian) 1975 BBC report on the failure of negotiations between the Rhodesian government and the black nationalists The Brookings Institution : Managing Ethnic Conflict in Africa – Rhodesia/Zimbabwe Selby, Angus (2006) "Commercial Farmers and the State: Interest Group Politics and Land Reform in Zimbabwe, 1890–2005", PhD Thesis, Oxford University Rhodesia Roll of Honour – Those who died in defence of UDI Rhodesian aviation and comment Window on Rhodesia – history archive
Sources: en.wikipedia.org
W. H. Auden, the poet, said, "I myself have taken mescaline once and L.S.D. once. Aside from a slight schizophrenic dissociation of the I from the Not-I, including my body, nothing happened at all." He also said, "LSD was a complete frost. … What it does seem to destroy is the power of communication. I have listened to tapes done by highly articulate people under LSD, for example, and they talk absolute drivel. They may have seen something interesting, but they certainly lose either the power or the wish to communicate." He also said, "Nothing much happened but I did get the distinct impression that some birds were trying to communicate with me." James Cameron, the Canadian filmmaker, has said he experimented with LSD during his college years. Daniel Ellsberg, an American peace activist, says he has had several hundred experiences with psychedelics. Richard Feynman, a notable physicist at California Institute of Technology, tried LSD during his professorship at Caltech. Feynman largely sidestepped the issue when dictating his anecdotes; he mentions it in passing in the "O Americano, Outra Vez" section. Jerry Garcia stated in a July 3, 1989 interview for Relix Magazine, in response to the question "Have your feelings about LSD changed over the years?" "They haven't changed much. My feelings about LSD are mixed. It's something that I both fear and that I love at the same time.
2-Chloro-4,6-dimethoxy-1,3,5-triazine (CDMT) is a triazine derivative commonly used in acylation reactions for the synthesis of amides and esters as well as for activation of alcohols in a diverse range of other reactions. Almost exclusively used with N-methylmorpholine (NMM) as a Brønsted base, its reactivity is closely related to DMTMM.
Also, cats, which are generally regarded as obligate carnivores, occasionally eat grass to regurgitate indigestible material (such as hairballs), aid with hemoglobin production, and as a laxative. Many mammals, in the absence of sufficient food requirements in an environment, suppress their metabolism and conserve energy in a process known as hibernation. In the period preceding hibernation, larger mammals, such as bears, become polyphagic to increase fat stores, whereas smaller mammals prefer to collect and stash food. The slowing of the metabolism is accompanied by a decreased heart and respiratory rate, as well as a drop in internal temperatures, which can be around ambient temperature in some cases. For example, the internal temperatures of hibernating Arctic ground squirrels can drop to −2.9 °C (26.8 °F); however, the head and neck always stay above 0 °C (32 °F). A few mammals in hot environments aestivate in times of drought or extreme heat, for example the fat-tailed dwarf lemur (Cheirogaleus medius).
== Early life == Emma Willis was born in Sutton Coldfield, Birmingham, attending Wylde Green Primary School and then John Willmott School in Sutton Coldfield. She began modelling at the age of 15, and during her career worked for a range of magazines, retailers and companies including Marie Claire, Elle, Vogue, GAP and Chanel.
== Bibliography == Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Oxford: Butterworth-Heinemann. ISBN 978-0-08-037941-8. Holleman, Arnold F.; Wiberg, Nils (2007). Textbook of Inorganic Chemistry (102nd ed.). Berlin: de Gruyter. ISBN 978-3-11-017770-1. Peterson, J. R.; Hobart, D. E. (1984). "The Chemistry of Berkelium". In Emeléus, Harry Julius (ed.). Advances in inorganic chemistry and radiochemistry. Vol. 28. Academic Press. pp. 29–64. doi:10.1016/S0898-8838(08)60204-4. ISBN 978-0-12-023628-2.
Sources: en.wikipedia.org
After fascism came to power with the March on Rome on 28 October 1922, a centralized dictatorial regime began in the southern region, strengthened after the assassination of socialist deputy Giacomo Matteotti in 1924 and formalized with the Leggi fascistissime of 1925–1926, which outlawed all political parties except the fascist party, censored the press, and banned trade unions and strikes. In addition, mayoral elections were abolished, replaced by podestà, appointed by the prefect, with absolute powers in political and economic management. During this period, the most representative Calabrian political personality was Michele Bianchi, a native of Belmonte Calabro, who was a close associate of Mussolini and quadrumviral of the 1922 March on Rome, in addition to holding the posts of deputy, undersecretary at the Ministry of the Interior and, finally, minister of Public Works. In this capacity, which he held until his death in 1930, he had a number of infrastructures built in Calabria, such as the Camigliatello Silano ski resort (initially called Camigliatello Bianchi), as well as promoting public works in Cosenza while Tommaso Arnoni was mayor (1925–1934). In December 1924 a false rumor spread in Reggio Calabria that Benito Mussolini had resigned as Prime Minister because of the Matteotti affair, leading to joyous all-night celebrations. In the morning, the people learned that Mussolini was still prime minister. Several Fascist officials were dismissed for not suppressing the celebrations.
=== Thyroid cancer === At exposures eight times greater than those used in humans, liraglutide caused a statistically significant increase in thyroid tumors in rats. The clinical relevance of these findings is unknown. In clinical trials, the rate of thyroid tumors in participants treated with liraglutide was 1.3 per 1000 participant years (4 people) compared to 1.0 per 1000 participants (1 person) in comparison groups. The sole participant in the comparator group and four of the five participants in the liraglutide group had serum markers (elevated calcitonin) suggestive of pre-existing disease at baseline. The US Food and Drug Administration (FDA) said serum calcitonin, a biomarker of medullary thyroid cancer, was slightly increased in liraglutide patients, but still within normal ranges, and it required ongoing monitoring for 15 years in a cancer registry.
=== Category:EC 1.20 (act on phosphorus or arsenic as donors) === Category:EC 1.20.1 Category:EC 1.20.2 Category:EC 1.20.4 Arsenate reductase (glutaredoxin) EC 1.20.4.1 Glutaredoxin Category:EC 1.20.9 Category:EC 1.20.99
The active site can be characterized into two sub-sites denoted as S1’ and S1. The S1’ sub-site is the hydrophobic pocket of the enzyme, and Tyr-248 acts to ‘cap’ the hydrophobic pocket after substrate or inhibitor is bound (SITE). The hydrogen bonding from the hydroxyl group in Tyr-248 facilitates this conformation due to interaction with the terminal carboxylates of substrates that bind. Substantial movement is required for this enzyme and induced fit model explains how this interaction occurs. A triad of residues interact to the C-terminal carboxylate through hydrogen bonding:
Sources: en.wikipedia.org
It binds the growth hormone-releasing hormone receptor on pituitary somatotroph cells. Receptor activation raises cyclic AMP and promotes release of stored growth hormone granules. Because the peptide persists longer than natural releasing hormone, stimulation is prolonged rather than brief.
The drug affinity complex links the peptide to serum albumin through a covalent bond. The conjugate is too large to be filtered quickly by the kidneys and is shielded from enzymatic breakdown. This extends the apparent half-life from roughly minutes to several days.
Long-term safety and any clinical benefit are unestablished. Published human data cover small groups over limited periods and focus on hormone levels rather than health outcomes. Whether prolonged elevation of growth hormone and insulin-like growth factor 1 is beneficial or harmful is an open question.