How To Use Acetyl In A Sentence

Noradrenaline decreased I_(K) distinctly. Isoprenaline and acetylcholine showed no effect on I_(K) in isolated rat hepatocytes.
Histones physically control access to genes, and adding small functional groups such as acetyl or methyl units to them can selectively switch certain genes on and off. Innovations-report
Evaluation of the contents of a glassine envelope found at the scene revealed diacetylmorphine (heroin).
Where, however, acetylene or other gas is flowing through pipes or apparatus there is a loss of energy, indicated by a falling off in the pressure due to friction, or to the performance of work, such as actuating a gas-meter. Acetylene, the Principles of Its Generation and Use
The footnote also stated that Hoffmann had arranged for several chemical derivatives of salicylic acid to be examined, not just its acetyl ester.

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The basal ganglia of the brain are peculiarly rich in acetylcholine, the presence of which must presumably have some significance; and suggestive effects of eserine and of acetylcholine, injected into the ventricles of the brain, have been described. Sir Henry Dale - Nobel Lecture
All nerve agents act by inhibiting the enzyme acetylcholinesterase, which breaks down the neurotransmitter acetylcholine.
-- Since calcium carbide is only useful as a means of preparing acetylene, it should be bought under a guarantee (1) that it contains less impurities than suffice to render the crude gas dangerous in respect of spontaneous inflammability, or objectionable in a manner to be explained later on, when consumed; and (2) that it is capable of evolving a fixed minimum quantity of acetylene when decomposed by water. Acetylene, the Principles of Its Generation and Use
Chapter VI. that the use of metallic copper in the construction of acetylene apparatus is not permissible or judicious, because the gas is liable to form therewith an explosive compound known as copper acetylide; it might seem, therefore, that the employment of a copper salt for purification courts accident. Acetylene, the Principles of Its Generation and Use
As a 10-year-old kid Pauline used a stolen acetylene torch to decapitate the globe of a gumball machine.
The signature of a baseline molecule, called acetylene (C2H2), was seen for both types of stars, but hydrogen cyanide was seen only around stars like our sun. Image Gallery
Among them are baclofen, a common muscle relaxant that enhances GABA, and N-acetylcysteine, used to treat Tylenol overdoses, which inhibits glutamate. New Hope For Addicts?
-- A selective allosteric potentiator of the M1 muscarinic acetylcholine receptor increases activity of medial prefrontal cortical neurons and restores impairments in reversal learning. PhysOrg.com - latest science and technology news stories
Apart from being deactivated, potentially explosive acetylides are also produced.
This neurotoxic action kills bugs by reducing the level of a certain enzyme (acetylcholinesterase) that clears an important neurotransmitter chemical (acetylcholine) out of the junction between nerve cells. Dr. Walter Crinnion: Could Organic Produce Be the New Ritalin?
A geranium oil containing 26.9 per cent. of ester, calculated as geranyl tiglate, was acetylated, after saponification, to liberate the combined geraniol, and 2.3825 grammes of the acetylated oil required 9.1 c.c. of The Handbook of Soap Manufacture
Most overdoses are caught quickly and treated with an antidote called n-acetylcysteine, or NAC. FDA Panel Recommends Changes to Drug Ingredient
Other sugar nucleotides such as uridine diphosphate acetylglucosamine and guanosine diphosphate mannose were also isolated. Luis Leloir - Biography
Vitamin B5, in the form of CoA, can be used to help acetylate proteins, thereby protecting them from chemical breakdown. The World's Healthiest Foods
By the mid 1980's we had developed what I call well-defined catalysts for both the olefin and acetylene metathesis reactions that contained sterically protecting imido and/or alkoxide ligands. Richard R. Schrock - Autobiography
This thesis is concerning the acetylene produced through co - cracking coal and natural gas by plasma jet.
Trimethyl carbinol or tertiary butyl alcohol, (CH_3) _3·COH, is the simplest tertiary alcohol, and was obtained by A. Butlerow in 1864 by acting with zinc methyl on acetyl chloride (see A.COHOLS). Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"
However, vitamin B5 is also involved in the transport of these acetyl building blocks from one part of the cell (the large, watery-part called the cytoplasm) into smaller, more specialized organelles (called the mitochondria) where fat is actually produced. The World's Healthiest Foods
Acetylcholine esterase inhibitor (neostigmine): indications: colonic pseudo-obstruction PLoS Medicine: New Articles
Since we had found previously that by adding bromine to the golden (SN) x material, we could increase its conductivity tenfold, we thought that perhaps the impurity in the polyacetylene was acting as a dopant and was actually increasing the conductivity of the polyacetylene, rather than decreasing it. Alan G. MacDiarmid - Autobiography
Excess acetylene should be vented from reaction flasks, tubing, etc., rather than scrubbed with strong base to avoid the formation of acetylides.
The cartographer at his table beneath a shaded acetylene light drew maps and sketched, the magnetician was busy on calculations close by. The Home of the Blizzard Being the Story of the Australasian Antarctic Expedition, 1911-1914
As a 10-year-old kid Pauline used a stolen acetylene torch to decapitate the globe of a gumball machine.
Backgroud: The acetylation of histones plays very important role in expression of gene.
The other contribution is the synthesis of liquid crystalline conjugated polymers by replacing the hydrogen atom bonded to polyacetylene with a substituent having liquid crystalline nature as the side chain. Hideki Shirakawa - Autobiography
Blood - Determination of cholinesterase activity - Spectrophotometric method - Acetylthiocholine and dithio - bis - ( nitrobenzoic acid ) method.
A man takes three sips of kalla, and he touches off the release of neurotransmitters, acetylcholine and tryptamine and serotonin. THE BROKEN GOD
Eat an apple or two: Apples stimulate production of the neurotransmitter acetylcholine, which is what the Alzheimer's drug Aricept also does, say University of Massachusetts researchers. Jean Carper: In Honor of World Alzheimer's Day, Take a Hike Today
It so happens that both biacetyl and methylglyoxal photolyze like crazy, so much so that they last only a few minutes in sunlight before splitting into radical fragments. Hot Buttered
Sage oil inhibits an enzyme called acetylcholinesterase, whose normal job is to break down the chemical messenger acetylcholine.
All cholesterol is made from the basic molecule called acetyl CoA, which comes from the metabolism of carbohydrate, metabolism of extra protein, and metabolism of fat. Anatomy of a statin ad | The Blog of Michael R. Eades, M.D.
Protecting the Kidney : A 25-cent pill called acetylcysteine is often given to patients undergoing diagnostic X-rays of their coronary arteries to prevent contrast dye used in the procedures from damaging kidneys. Four Heart Treatments Questioned In Studies
In this compartment, called the matrix, the pyruvic acid is decarboxylated to a two-carbon acetyl group, releasing a CO 2 molecule, and is enzymatically joined to Coenzyme A, a large carrier molecule.
It is certainly true that the purer is the acetylene burnt, both as regards freedom from phosphorus and absence of products of polymerisation, the longer do the burners last; and it has been claimed that a burner constructed at its jets of some non-porous substance, e.g., "ruby," does not choke as quickly as do steatite ones. Acetylene, the Principles of Its Generation and Use
For instance, Mai has found that freshly made copper acetylide can be heated to 60° C. or higher without explosion; but that if the compound is exposed to air for a few hours it explodes on warming, while if warmed with oxygen it explodes on contact with acetylene. Acetylene, the Principles of Its Generation and Use
Most 3rd world skilled builders/labourers have the most primitive and basic hand tools only. and arc/tig/mig or oxyacetylene would be beyond their purchasing power. PREFAB FRIDAY: Container House by Leger Wanaselja | Inhabitat
The presence of these 2 ions on a bank note would confirm the presence of diacetylmorphine, the major active component of heroin.
What happens when biacetyl reacta with zinc and conc. Yahoo! Answers: Latest Questions
In the same paper I had speculated on the possible occurrence of acetylcholine in the animal body, and on its physiological significance if it should be found there; and had pointed out the extraordinary evanescence of its action, suggesting that an esterase probably contributed to its rapid removal from the blood. Sir Henry Dale - Nobel Lecture
Most by commonly used drugs, such as mephobarbital, Asians, especially Japanese (88-93%), are fast hexobarbital, diazepam, imipramine and omepra - acetylators compared to 50% of Caucasians and zol, but only Recently Uploaded Slideshows
Side effects included pancreatitis and shingles that resulted in discontinuation of 5-acetylsalicylic acid, leukopenia corrected by withholding 6-mercaptopurine and self-resolved hepatitis. IBD clinical studies: drug comparisons
radical" ethynyl molecule and a diacetylene molecule. Dailyindia.com News Feed
The action of a common neurotransmitter, such as acetylcholine, illustrates how ion channel receptors work.
It's use to make the nerve transmitter chemical called acetyl choline that many of our nerves and our brain and our muscles use to send messages.
In certain parasitic bacteria, N-acetylneuraminate lyase also plays a role in the synthesis of a sialic acid polymer component of capsules that help these bacteria evade host defenses.
Freund and Mai have also observed that when copper acetylide which has been dried in contact with air for four or five hours at a temperature of 50° or 60° C. is allowed to explode in the presence of a current of acetylene, an explosion accompanied by light takes place; but it is always local and is not communicated to the gas, whether the latter is crude or pure. Acetylene, the Principles of Its Generation and Use
Cuprous carbide or acetylide is the reddish brown amorphous precipitate which is the ultimate product obtained when acetylene is led into an ammoniacal solution of cuprous chloride. Acetylene, the Principles of Its Generation and Use
We use the heat produced by the burning of acetylene in the flame of the oxyacetylene torch to make welds.
The nanoparticles are mixed with acetylene black, which makes the mixture electrically conductive, and molybdenum trioxide, which supplies the oxygen.
A man takes three sips of kalla, and he touches off the release of neurotransmitters, acetylcholine and tryptamine and serotonin. THE BROKEN GOD
This inhibition was observed in both the directly and indirectly stimulated contractions, and was not changed by addition of neostigmine, an acetylcholine esterase inhibitor.
The release of acetylcholine stimulates three types of muscarinic receptors, M1 - M3, to produce bronchoconstriction and mucous secretion.
Cylinders of acetylene were believed to have gone up in what was originally reported as a simple barn fire.
Ethyne, or acetylene, has the chemical formula CH 2 CH 2, with a triple bond between the two carbons.
Botulism toxin from bacteria prevents the release of acetylcholine and is the most poisonous substance known.
It cannot altogether be granted that the value of a process for diluting acetylene with carbon dioxide has been established, except in so far as the mere presence of the diluent may somewhat diminish the tendency of the acetylene to polymerise as it passes through a hot burner (_cf. Acetylene, the Principles of Its Generation and Use
The acetylides should be carefully mixed with the raw aluminum nitride.
Later, I heard that biacetyl/diacetyl was used to flavor margarine; I also heard that microwave food products use excess flavoring agents because the microwave heating process drives the volatiles away faster than regular cooking. Hot Buttered
If N-acetyl galactosamine binds to the H substance, it forms the blood group A, whereas if galactose binds to it, it forms the group B. Absence of any binding substance produces the O blood group. Rare blood donor registry; need of the hour - Cover Story - Express Healthcare Management
Firefighters were forced to retreat when they realised that the building contained acetylene canisters, gas bottles and diesel barrels.
The acetylcholine sweat spot test is an easy, inexpensive, time saving test for detecting autonomic neuropathy.
Drugs such as clonazepam, hydralazine, may also vary. sulphonamides, isoniazide, nitrazepam and procai - The mephenytoin metabolic pathway is utilized namide undergo acetylation in the liver. Recently Uploaded Slideshows
Heroin: Heterocyclic compound, a highly addictive alkaloid derivative of morphine (chemically, it is diacetylmorphine) that makes up a large portion of illicit narcotics traffic.
Aspirin is made up of acetylsalicylic acid, which exfoliates skin and has anti-inflammatory properties. The Sun
Treatments for early, mild Alzheimer's disease, such as donepezil, improve the activity of neurons in the cholinergic system that use acetylcholine to transmit signals.
Acetylcholine is released by neurons to provoke muscle contraction.
Many mitochondrial proteins undergo a small chemical modification known as acetylation, which varies during feeding and fasting conditions," said Eric Verdin, MD, senior investigator and senior author of the study. PhysOrg.com - latest science and technology news stories
Many of these, such as acetylation, are fairly run of the mill. News from The Scientist
As expected, the inward currents elicited by carbachol (1 mM, 30 s) persisted for a longer duration compared to the inward currents elicited by acetylcholine (1 mM, 30 s) in both males and females, as seen in the voltage clamp traces in PLoS ONE Alerts: New Articles
But they slow mental deterioration by blocking the breakdown of the brain chemical acetylcholine.
We have evidence, then, that both the reserve of acetylcholine, and the esterase required for its destruction, are in fact associated with the preganglionic nerve endings, as our hypothesis demands. Sir Henry Dale - Nobel Lecture
MAIN OUTCOME MEASURES: Determination of the choline acetyltransferase activity in the groups.
The sex difference persisted when the nicotinic receptors were activated with carbachol, an analogue of acetylcholine that is not broken down by endogenous acetylcholinesterase. PLoS ONE Alerts: New Articles
To mutarotation of N-acetylglucosamine in water was studied by HPLC/MS/MS with specific rotation.
Sir Bernard Katz 'discoveries concerning the mechanism for the release of the transmitter acetylcholine from the nerve terminals at the nerve-muscle junction, under the influence of the nerve impulses, are fundamental not only for the understanding of the so-called cholinergic transmission, but are also of primary importance for our knowledge about the synaptic transmission between the nerve cells in the central nervous system. Physiology or Medicine 1970 - Press Release
Cholinesterase inhibitors, which reduce cholinesterase - the enzyme that breaks down acetylcholine - are the only FDA-approved treatment for Alzheimer's.
We collaborated with my good friend William Sleator of the Physiology Department in the study of changes in cellular action potentials (measured with intracellular microelectrodes) associated with the changes in contractility of the guinea pig atrium in response to epinephrine and acetylcholine, and a number of other inotropic agents. Robert F. Furchgott - Autobiography
Researches also show that Epimedium can inhibit an enzyme called acetylcholinesterase Xml's Blinklist.com
The reactions of allylene closely resemble those of acetylene. Transactions of the American Philosophical Society
The cellulose residue which undergoes condensation is not of the normal constitution, since the normal cellulose is acetylated without condensation (see p. 41). Researches on Cellulose 1895-1900
Before the advent of propane torches, acetylene, or gasoline blowtorches, jewelers used an alcohol flame and a small blowpipe to direct and intensify the heat where they needed it.
The world learned one morning of a new gas called acetylene, clear, brilliant, cheap, and simply made from calcium carbide. Frenzied Finance Vol. 1: The Crime of Amalgamated
As a result, we found that the emergence of electrical conductivity on the doped polyacetylene was due to the creation of carbocations or positively charged solitons associated with withdrawing of p electrons from polyacetylene by the dopant when iodine was used as an acceptor dopant. Hideki Shirakawa - Autobiography
In in vitro experiments it was shown that inhibition of 14C N-acetylglucosamine incorporation into chitin by proleg epidermis is less pronounced at 20°C than at 25°, 30° and 35°C (Chandler et al., Chapter 7
The accidental finding was that on the preparation of rabbit aorta being used in the experiment, the muscarinic agents acetylcholine and carbachol induced relaxation rather than the expected contraction. Robert F. Furchgott - Autobiography
Do chlorpromazine and acetyl drop in temperature salicylicly what distinction does action have?
The interpretation of these numbers appears to be this: in the original reaction with the lignocellulose it is the cellulose residue which is acetylated, and at the same time condensed. Researches on Cellulose 1895-1900
The leaves and bark of the willow tree contain a substance called salicin, a naturally occurring compound similar to acetylsalicylic acid, the chemical name for aspirin. BBC News | News Front Page | UK Edition
Tim Foley Alzheimer's disease is often treated by a class of drugs called cholinesterase inhibitors, which help boost levels of a brain chemical called acetylcholine. Drug Cocktail May Slow Alzheimer's
The idea is the turn up the volume of neuronal signals that use acetylcholine as a transmitter molecule, by inhibiting the enzyme that would break it down and sweep it out of the synapse.
The reaction is so facile that it would be surprising if it didn't occur given the presence of these molecules (cyanimide, cyanoacetylene, glycolaldehyde, glyceraldehyde, and inorganic phosphate). Slashdot
The other method consists in pumping acetylene under pressure into a cylinder apparently quite full of some highly porous solid matter, like charcoal, kieselguhr, unglazed brick, &c. Acetylene, the Principles of Its Generation and Use
Oxaloacetate plus the acetyl group form the six-carbon citric acid, or citrate.
(D-I) The diaphragms of wild-type (D-F) and meltrin β − / − (G-I) mice at E18. 5 were stained with an anti-synaptophysin antibody (D and G) to label axon terminals and with BTX (E and H) to label acetylcholine receptors (AChRs). PLoS ONE Alerts: New Articles
For a uniform ‘flame finish,’ granite is first polished normally, then spalled with a large oxyacetylene burner.
Drugs such as clonazepam, hydralazine, may also vary. sulphonamides, isoniazide, nitrazepam and procai - The mephenytoin metabolic pathway is utilized namide undergo acetylation in the liver. Recently Uploaded Slideshows
Histones are modified in various ways, including through a process called acetylation, which in turn modifies chromatin shape and structure. Gene Key To Alzheimer’s-like Reversal Identified | Impact Lab
Cytosine can be formed by reacting cyanoacetylene with cyanate, cyanogen or urea, and uracil can be produced by the hydrolysis of cytosine.
The structures of monolayers on Si(100) made up of two acetyl-protected triol ligands, derived from 2-hydroxymethyl-propane-1,3-diol, namely, R-C(CH Journal of Physical Chemistry C
The success and widespread use of this method in 20th-century sculpture has depended on the invention around 1900 of fusion welding using oxyacetylene welding equipment.
the acetylation of cyclooxygenase-2 by aspirin
The genes were the same as those regulated by cocaine and opiates, such as heroin (diacetylmorphine).
Free carnitine was converted to C acetyl carnitine and measured in a scintillation counter.
Whatever the feedstock, the product slate is a complex mixture of hydrogen, ethylene, other olefins, diolefins and gasoline as well as smaller amounts of acetylenes and carbon monoxide.
This effect is consistent with the expected large reduction in electron density on the amino nitrogen upon acetylation thus making coordination with copper much less strong.
Kuiper claimed the flavoring contained diacetyl, a chemical linked to a rare respiratory condition called bronchiolitis obliterans, known as "popcorn lung. DesMoinesRegister.com - NEWS
An early favorite target was the vital enzyme acetylcholinesterase, required for hydrolysis of acetylcholine at neuromuscular junctions, and it has been exploited by agrochemical companies in a spectacular manner.
Two kinds of motor nerves, excitatory nerves that release acetylcholine and inhibitory nerves that release nitric oxide, account for all events that occur in smooth muscle of the esophagus in a swallow.
The segment -- which serves customers in the chemical, paint and adhesives industries -- produces and supplies acetyl products such as acetic acid, vinyl acetate monomer, acetic anhydride and other acetyl derivatives. Celanese Raises Full-Year Forecast
The Histone Acetyl Transferases (HATs) that acetylate these two proteins, namely PCAF and p300, respectively, may therefore regulate SATB1-mediated transcription upon Wnt signalling. PLoS Biology: New Articles
Many of these vinyl compounds are made by the reaction of acetylene with electrophiles.
Scientists have known for decades that proteins can be acetylated on their lysine residues, but the modification was long seen as the poor cousin to phosphorylation, which can activate or deactivate countless processes in living cells. Engineering News: Latest News
First, researchers found that when the polymer polyacetylene acquires an extra electron, the particle seems to split into two quasi-particles, or excitations of the molecule as a whole.
The antidote is a remarkable compound called acetyl cysteine. EzineArticles
Common chemical bleaches include household chlorine bleach, a solution of approximately 3 – 6% sodium hypochlorite (NaClO), and oxygen bleach, which contains hydrogen peroxide or a peroxide-releasing compound such as sodium perborate, sodium percarbonate, sodium persulfate, tetrasodium pyrophosphate, or urea peroxide together with catalysts and activators, e.g. tetraacetylethylenediamine and/or sodium nonanoyloxybenzenesulfonate. Superhero Nation: how to write superhero novels and comic books » Seriously?
So taking the bravest-feathered acetylene lamp into the phonologic laboratory, we consummated our radionic guest on the slab in the dark, and incorporated every energy to the mixing of a pretty solution, the weighing and measuring supervised by West with an almost light-headedness care. Think Progress » Prison Camp Turns Three, WIll Build Psychiatric Wing for Inmates it Drives Crazy
He identified acetylcholine as a constituent of certain ergot extracts, and an analysis of its action served as a basis for later researches, extending the application of Loewi's discoveries, which have been recognized in the joint award of the Sir Henry Dale - Biography
If you photooxidize orthoxylene, with it's two adjacent methyl groups, when the ring opens, a certain percentage of time you get biacetyl. Hot Buttered
I had some vague suspicions that it might not be a good idea to use a compound as photochemically unstable as biacetyl in food. Hot Buttered
ATP binding sites are regulatory sites in the nitrogenase and the acetylene reduction active sites are catalytic sites in the nitrogenase.
Based on their studies of salicum, researchers derived a synthetic drug called acetyl salicylic acid, better known today as aspirin. Earl Mindell’s New Herb Bible
In that same year, W. B. Cannon found an accelerator substance released by the sympathetic nerves, and called it sympathin.5 It was later shown by U.S. von Euler to be a combination of epinephrine and a similar substance called norepinephrine.6 Cannon went on to characterize the function of the sympathetic (norepinephrine) and parasympathetic (acetylcholine) divisions of the autonomic nervous system. Alcohol and The Addictive Brain
The optical activity of tannin is expressed in this formula and its probability is corroborated by Nierenstein, who was able to resolve the acetylated tannin by fractional precipitation into pentacetyl tannin Synthetic Tannins
Some researchers at the Franklin Institute in Philadelphia Stevens, Hanst, Doerr, and Scott, used a technique called long-path infrared spectroscopy on smog chamber products and spotted a set of IR bands that were particularly strong in the results of a biacetyl-NOx run. Archive 2008-04-01
They also rejected bridgehead double bonds and allenes, and (to my surprise) only allowed triple bonds for nitriles (so no acetylenes.)
In addition, experiments were conducted at sea to measure the growth of heterotrophic bacteria in response to amendments of amino acids, protein, N-acetyl glucosamine, and chitin.
Acetylation takes place so rapidly the completely that no unchanged 5-ASA can be detected inside the cell.
Slowly, as researchers learned more about the structure of histones, it became evident that patterns of acetylation and methylation could be quite precise.
The N-terminal group was acetylated to reproduce the experimental conditions at which the protein was studied.
Considering the manner in which acetylcholine must reach the motor end plates of the muscle fibres, if it were indeed the transmitter of motor nerve excitation - that it must appear with a flash-like suddenness, in high concentration, simultaneously at every nerve ending - we concluded that the ordinary method of injecting acerylcholine, so that it reached the muscle by slow diffusion from the general circulation, could not possibly reproduce this abrupt appearance at the points responsive to its action. Sir Henry Dale - Nobel Lecture
Other authorities hold that mantles for acetylene, should contain other rare earths besides the thoria and ceria of which the coal-gas mantles almost wholly consist. Acetylene, the Principles of Its Generation and Use
There are eight essential saccharides: mannose, glucose, galactose, xylose, fucose, N-acetylglucosamine, N-acetylgalactosamine and N-acetylneuraminic acid.
The eserine has so depressed the action of the esterase at the nerve endings, that the acetylcholine liberated by a single nerve volley lingers there, and reexcites the muscle at each emergence from successive refractory periods, until the concentration falls at last below the stimulation threshold. Sir Henry Dale - Nobel Lecture
To transport gaseous substances such as propane or acetylene economically, they must be compressed greatly to fit into containers of a reasonable size.
Acrylonitrile is another product of acetylene, formed in a reaction with hydrogen cyanide.
We showed that the positive inotropic effects of norepinephrine and strophanthin-K were correlated with an increase in rate of exchange of calcium in an intracellular pool associated with the contractile process and that the negative inotropic effects of acetylcholine and adenosine were correlated with a decrease in rate of exchange in that pool. Robert F. Furchgott - Autobiography
All nerve agents act by inhibiting the enzyme acetylcholinesterase, which breaks down the neurotransmitter acetylcholine.
~ -- The cellulose dibenzoate (C_ {12} basis) and the jute monobenzoate were acetylated under comparative conditions The results were as follows: Researches on Cellulose 1895-1900
In addition, certain polyacetylene constituents of Echinacea have been found to be bacteriostatic against E. coli and Pseudomonas aeruginosa.
It is a brand name for acetylcysteine, which is used to break up mucus. Times, Sunday Times
The percentage of diacetylmorphine in street heroin can vary based on geographic source; South American wholesale has been falling from a high of 88 percent in 2003. Wired Top Stories
Choline chloride and phosphatidylcholine, which are orally bioavailable precursors of acetylcholine, have been reported to be useful in short-term studies.
However, acetylcholine, the first neurotransmitter to be identified, was not isolated until the early 1920s.
In the absence of acetylcholinesterase, levels of the transmitter acetylcholine increase.
With the help of synthetic chemists, morphine has become hydromorphine; lysergic acid has been converted to methylysergide; cocaine has yielded procaine; physostigmine has been converted into neostigmine and salicin has been changed into acetylsalicylic acid. Chapter 7
Other post-translational modifications of HIF-1α, such as acetylation, phosphorylation and nitrosylation, were also reported, despite contradictory results with regard to their effect on HIF-1α protein stability and transcriptional activity PLoS ONE Alerts: New Articles
Malate formed by PEPC can either be used in the citric acid cycle or it can be decarboxylated to provide pyruvate and subsequently acetyl-CoA.
Drugs such as clonazepam, hydralazine, may also vary. sulphonamides, isoniazide, nitrazepam and procai - The mephenytoin metabolic pathway is utilized namide undergo acetylation in the liver. Recently Uploaded Slideshows
In the United States alone, several hundred thousand tons of acetylene are produced every year, but its volatility renders it difficult to transport: It becomes dangerously explosive at about 30 psi (207 kilopascal), only about twice normal atmospheric pressure. Science Blog - Science news straight from the source
He thought for a minute and added, ‘So, if we improve cognition by increasing acetylcholine, it makes sense that anticholinergic drugs can make dementia a lot worse.’
Amniotic fluid acetylcholinesterase is found in gastroschisis but not omphalocele. CHOP abdominal wall defect publications
Metoclopramide sensitizes tissues to acetylcholine to stimulate upper GI tract motility without stimulating gastric, biliary, or pancreatic secretions.
I noticed now that there were other acetylene mantles set at intervals around the walls of the Cabin. ANTI-ICE
We examined the effects of solutions containing miotic agents such as carbachol and/or acetylcholine on corneal endothelial pumping activity.
The Canadian researchers randomly assigned about half of the addicts to receive methadone and the other half to receive daily injections of diacetylmorphine, the active ingredient in heroin.
His conclusions are that a copper acetylide is always produced if impure acetylene is allowed to pass through neutral or ammoniacal solutions of copper; that dry acetylene containing all its natural impurities except ammonia acts to an equal extent on copper and its alloys, yielding the explosive compound; that pure and dry gas does not act upon copper or its alloys, although it is possible that an explosive compound may be produced after a great length of time. Acetylene, the Principles of Its Generation and Use
During the first phase, half will be given injectable heroin (diacetylmorphine) and half will be given injectable Dilaudid® (hydromorphone). Stop the Drug War (DRCNet) - raising awareness of the consequences of prohibition -- news and activism supporting sensible reform
THC has been found to prevent an enzyme called "acetylcholinesterase" from producing Alzheimer's plaques in the brain and is found to be effective in blocking protein clumps that inhibits memory and cognitive thinking in Alzheimer's patients. Vault9.net
The most common neurotransmitter is called acetylcholine. You Staying Young
In the brain, it impersonates the neurotransmitter acetylcholine and binds with a subtype of acetylcholine receptor called the nicotinic receptor. Globe and Mail
Hornberg A, Tunemalm AK, Ekstrom F (2007) Crystal structures of acetylcholinesterase in complex with organophosphorus compounds suggest that the acyl pocket modulates the aging reaction by precluding the formation of the trigonal bipyramidal transition state. PLoS ONE Alerts: New Articles
“Responses of a Molluscan Smooth Muscle to Acetylcholine and 5-hydroxytryptamine.” MANUFACTURING DEPRESSION
In patients with chronic hypoxemic lung disease, polycythemia has been shown to impair the vasodilator response to acetylcholine.
Both of these cancers produce high levels of free radicals that can be suppressed by feeding the mice supplements of antioxidants, either vitamin C or N-acetylcysteine (NAC). How Vitamin C Stops the Big ‘C’ | Impact Lab
The products of this reaction are both ketogenic (acetyl-CoA) and glucogenic (pyruvate).
It was ethinol, a pretty rarely isolated organic chemical (hydroxy acetylene). Times, Sunday Times
The acetylides are also strong bases and in reactions with secondary or tertiary alkyl halides elimination reactions can occur instead.
They first measured the level of pituitary and brain beta-endorphin in two forms: the acetylated, nonactive form, and the nonacetylated, active form. Alcohol and The Addictive Brain
His sun-valve was fitted in a number of lighthouses powered by acetylene gas.
The willow tree bark and leaves are rich in salicin, a compound similar to acetylsalicylic acid, the chemical name for aspirin.
According to Lewes, acetylene commences to "polymerise" at a temperature of about 600° C., when it is converted into other hydrocarbons having the same percentage composition, but containing more atoms of carbon and hydrogen in their molecules. Acetylene, the Principles of Its Generation and Use
Acetylcholine acts as a transmitter between motor nerves and the fibres of skeletal muscle at all neuromuscular junctions.
OBJECTIVE: To observe the 1H-MRS manifestations of patients with heroin spongiform leucoencephalopathy so as to analyze metabolic regularities of N-acetyl aspartate, creatine and bilineurine in brain.
Cylinders of acetylene were believed to have gone up in what was originally reported as a simple barn fire.
Even when obtained in solution this potent enzyme destroys acetylcholine with a quite remarkable rapidity; and if we could suppose it to be concentrated on surfaces at preganglionic or motor nerve endings, in immediate relation to the site of liberation and action of acetylcholine, it might furnish an adequate mechanism for the complete destruction of this substance, even during the very brief interval of the refractory period. Sir Henry Dale - Nobel Lecture
Chunaram Choudhary, a biochemist at the University of Copenhagen, found that thousands of additional proteins are acetylated, including some involved in cell division and DNA repair. Engineering News: Latest News
There are also several vehicles cut up by acetylene equipment and dumped in a pond.
The acetylation of salicylic acid increased the potency of morphine by making the compound more soluble in brain fat and facilitating transfer across the blood brain barrier.
Positive or faint amniotic fluid acetylcholinesterase band with normal ultrasound. Prenatal Diagnosis
It wasn't so long ago that the lanterns on buoys were powered by acetylene gas, requiring more frequent visits to replace the gas, and to relight pilot lights which could be blown out.
The application of this methodology to biological systems has allowed the generation of biologically active substances, in particular enzyme inhibitors (carbonic anhydrase, acetylcholine esterase). Jean-Marie Lehn - Autobiography
Another use for acetylene, which is only dependent upon a suitably lowered price for carbide to become of some importance, consists in the preparation of a black pigment to replace ordinary lampblack. Acetylene, the Principles of Its Generation and Use
Beside him, strings of fishing boats put out to sea, their large lights, dazzling like acetylene, mounted in hats at the stern. COUP D'ETAT
The remaining 20% is converted to a highly reactive compound known as n-acetyl-p-benzoquinone imine, otherwise known as NAPQI for short. EzineArticles
While dealing with the blaze, the fire fighters also came across a number of cylinders including two that contained highly volatile acetylene gas.
-- Among minor reagents suggested as purifying substances for acetylene may be mentioned potassium permanganate, barium peroxide, potassium bichromate, sodium plumbate and arsenious oxide. Acetylene, the Principles of Its Generation and Use
The American Psychological Association may include cannabis withdrawal By TODD NEALE Aug. 23, 2009 Injectable diacetylmorphine, the active ingredient in, was shown to be an effective alternative to oral methadone in that had not responded to previous treatment. WN.com - Articles related to Choosing Sneakers Over Heels, Better In The Long Run
Side effects included pancreatitis and shingles that resulted in discontinuation of 5-acetylsalicylic acid, leukopenia corrected by withholding 6-mercaptopurine and self-resolved hepatitis. IBD clinical studies: drug comparisons
Thus it not only had nucleosomes and histone acetylation and methylation, but was also sexual with meiosis and a bouquet stage.
The gang worked for up to ten hours with acetylene torches to open the vault.
The oxyfuel gas welding process uses a flux and either an oxyacetylene or oxyhydrogen gas flame.
We use the heat produced by the burning of acetylene in the flame of the oxyacetylene torch to make welds.
Depolarization of the presynaptic membrane causes release of acetylcholine into the synaptic cleft.
Most of an anti-inflammatory dose of aspirin is rapidly deacetylated to form salicylate as the active metabolite. Aspirin: effects, poisoning
The easy illustration within this class of Product supply chain to a small number of regis - drugs is diacetylmorphine (diamorphine, 'heroin'). tered pharmacies (fewer than an average of one In the United States, this is a Schedule 1 controlled per State). substance, de ﬁ ned as being without any medical value; prescribing and dispensing is absolutely pro - Recently Uploaded Slideshows

How To Use Acetyl In A Sentence

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