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| | Glossary |
 | | The body's synthesis of acetylcholine is vital because of the neurotransmitters role in motor behavior and memory. | | | Acetylcholine - the most abundant neurotransmitter in the body and the primary neurotransmitter between neurons and muscles. | | | Acetylcholine helps control muscle tone, learning, and primitive drives and emotions. |
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http://www.maui.net/~jms/gloss.html
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| | Acetylcholine Mediated Vasodilatation in the Microcirculation of Patients with Chronic Fatigue Syndrome |
| | Increased sensitivity to acetylcholine is normally associated with trained athletes, while CFS patients are characterized (according to the Fukuda 1994 definition) as having "a substantial reduction in previous levels of occupational, educational, social or personal activities". | | | A further study demonstrated that acetylcholine sensitivity in CFS patients might be explained by prolonged action of the vascular response to acetylcholine (9). | | | Acetylcholine sensitivity is specific to a sub-group of patients within the CFS construct |
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http://www.prohealthnetwork.com/library/showarticle.cfm/ID/5605/e/1/T/CFIDS_FM
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| | Morphogenetic Roles of Acetylcholine |
| | Acetylcholine may be a negative influence on neurite outgrowth in mammalian neurons, as nicotinic antagonists enhance process outgrowth in cultured rat retinal ganglion cells, presumably by blocking the inhibitory effects of ACh released from amacrine neurons into the culture medium (30). | | | As such, it provides further evidence for the importance of acetylcholine in postnatal brain development and consequent behavior (63). | | | It seems especially important to study the effects of chronic prenatal exposure to cholinergic pesticides on pre- and postnatal brain development as well as behavioral consequences of these exposures. |
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http://ehp.niehs.nih.gov/members/1999/Suppl-1/65-69lauder/lauder-full.html
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| | Chemical in brain serves as traffic cop: 8/98 |
| | Information from distant brain areas and from the sense organs (such as the eyes, ears and skin) is processed as it flows vertically within cortical columns. | | | The cerebral cortex does higher-level processing, such as that involved in vision, memory and emotion. | | | Funding for the research came from the National Institute of Neurological Disorders and Stroke and from the Morris and Pimley Research Funds. |
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http://news-service.stanford.edu/news/1998/august26/brainflo.html
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| | Acetylcholine Research by Ray Sahelian, MD. Supplements for Acetylcholine |
| | Observations in rats led to the hypothesis that the low cholinergic tone during SWS is necessary for the replay of new memories in the hippocampus and their long-term storage in neocortical networks. | | | In human skin, exogenous acetylcholine increases both skin blood flow (SkBF) and bioavailable nitric oxide levels, but the relative increase is much greater in SkBF than nitric oxide. | | | Acetylcholine is a neurotransmitter that helps facilitate erectile function. |
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http://www.raysahelian.com/acetylcholine.html
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| | Nicotinic Acetylcholine Receptors in Sensory Cortex -- Metherate 11 (1): 50 -- Learning & Memory |
| | Lewandowski, M.H., Muller, C.M., and Singer, W. Reticular facilitation of cat visual cortical responses is mediated by nicotinic and muscarinic cholinergic mechanisms. | | | Chu, Z.G., Zhou, F.M., and Hablitz, J.J. Nicotinic acetylcholine receptor-mediated synaptic potentials in rat neocortex. | | | Iwasa, H. and Potsic, W.P. Maturational change of early, middle, and late components of the auditory evoked responses in rats. |
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http://www.learnmem.org/cgi/content/full/11/1/50
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| | Re: Myasthenia Gravis |
| | This is done by drugs such as Mestinon (physostigmine) which are acetylcholinesterase inhibitors. | | | One way this is done is by using drugs which suppress the immune system. | | | I will appreciate any response to my posting. |
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http://www.medhelp.org/perl6/neuro/archive/705.html
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| | Acetylcholine |
| | Often the most effective treatments are ligands which inhibit the breakdown of acetylcholine. | | | Over the past several years, a variety of research groups have focused on the development of selective nicotinic agonists. | | | The rationale for therapy involves replacement of acetylcholine, which is depleted in Alzheimer's patients as the basal forebrain neurons degenerate. |
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http://www.neurosci.pharm.utoledo.edu/MBC3320/acetylcholine.htm
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| | CHEST: Early impairment of acetylcholine-induced endothelium-dependent coronary vasodilation is not predictive of ... |
| | Design: The responses of epicardial coronary arteries to stepwise intracoronary infusion of acetylcholine ([10.sup.-8]M to [10.sup.-5]M) were compared in 7 control subjects and in 18 patients who had undergone transplants within 2 months after surgery. | | | In the six patients who had angiographically visible lesions of graft atherosclerosis and constitute the group 2 (HTX 2, five men, one woman; mean age, 48.5 [+ or -] 6 years), acetylcholine infusion was not repeated 1 year after surgery. | | | Thus, response to acetylcholine is not a predictor of secondary atherosclerosis in patients with heart transplants. |
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http://www.findarticles.com/p/articles/mi_m0984/is_n5_v107/ai_16998745
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| | Acetylcholine Deficits Not Found In Early Alzheimer's |
| | Still, the cholinesterase inhibitors currently used to try to boost ACh levels in patients who are in the early stages of the disease do seem to improve patients' ability to think. | | | The study may help point the way to even more effective use of the drugs -- or to new therapies altogether. | | | The researchers focused on brain structures known to be affected by Alzheimer's disease and failed to find predicted deficits in the signaling molecule (or "neurotransmitter") acetylcholine (ACh) in subjects in the earliest stages of the disorder. |
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http://unisci.com/stories/20021/0205021.htm
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| | UCSF News Office - Newly discovered protein may be key to muscular dystrophy |
| | It was thought that normal enzymatic breakdown of acetylcholine was so effective that a transporter wasn't needed to clear excess acetylcholine from the synapse. | | | The research is being reported in the August 19 issue of the journal Nature. | | | Discovery of the acetylcholine transporter could lead to therapies for some of these diseases based on altering acetylcholine levels, he said. |
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http://pub.ucsf.edu/newsservices/releases/200408162
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| | Hughes Science Pipeline Project at Barnard |
| | The responses were quantified by measuring the peak tension produced in response to the agonist and the integrated area under the contraction curve. | | | Concentration-response relationships for both peak tension and integrated area were generated for each agonist when applied in concentrations ranging from 0.1 nM to 1 mM. | | | The pharynx was most responsive to nicotine, followed by McN A 343, and was least sensitive to acetylcholine. |
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http://www.barnard.columbia.edu/hspp/icp95KanieckiAbs.htm
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| | Alzheimers, Memory, and Acetylcholine. |
| | However Squire believes these cholinergic pathways are better suited for some type of modulator role but in what way is yet unclear. | | | Many of these treatments seek to replace the depleted levels of acetylcholine (ACh) in the Alzheimer's patients brain. | | | There is no known cure for Alzheimer's disease, however numerous medications are undergoing testing for the treatment of the dementia associated with Alzheimer's. |
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http://www.psyweb.com/Documents/00000003.jsp
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| | Science News: Alzheimer's disease: source searching - role of acetylcholine |
| | In autopsy studies of other patients, they found that changes in other neurotransmitter systems did not correlate as neatly to previously collected psychological data, leading them to conclude that damages to the other systems are not primary events in the disease. | | | The role of acetylcholine was suspected as a result of autopsy studies, and because the neurotransmitter is involved in memory. | | | The memory loss and other cognitive disorders of Alzheimer's disease are all too evident to victims and their families; the current research, reported in the July 6 NEW ENGLAND JOURNAL OF MEDICINE, relates the psychological effects to decreased production of the chemical acetylcholine, a neurotransmitter that is involved in memory. |
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http://www.findarticles.com/p/articles/mi_m1200/is_v128/ai_3855051
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| | Decrease of brain acetylcholine release in aging freely-moving rats detected by microdialysis. |
| | Decrease of brain acetylcholine release in aging freely-moving rats detected by microdialysis. | | | In the 2-month-old rats, the net average acetylcholine output, corrected for recovery and expressed in fmoles/min/single striatum, cortex and hippocampus, was 902.4 +/- 67, 303.9 +/- 14 and 334 +/- 32, respectively. | | | In vivo extracellular acetylcholine release from brain hemispheric areas of 2-, 9-, and 18-month-old rats was measured by intracerebral microdialysis coupled with a radioenzymatic assay. |
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http://www.arclab.org/medlineupdates/abstract_3185854.html
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| | Differential Effects of Caffeine on Dopamine and Acetylcholine Transmission in Brain Areas of Drug-naive and ... |
| | Differential Effects of Caffeine on Dopamine and Acetylcholine Transmission in Brain Areas of Drug-naive and Caffeine-pretreated Rats | | | Therefore, in rats made tolerant to the locomotor stimulant effects of caffeine, tolerance developed to the dopamine stimulant but not to the acetylcholine stimulant effect of caffeine in the prefrontal cortex. | | | On the other hand, the dissociation between tolerance to the locomotor effects of caffeine and stimulation of acetylcholine release in the prefrontal cortex suggests that this effect might be correlated to the arousing effects of caffeine as distinct from its locomotor stimulant properties. |
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http://www.nature.com/cgi-taf/dynapage.taf?file=/npp/journal/v27/n2/abs/1395880a.html
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| | Molecular Modeling - Acetylcholine Case Study |
| | The student will have learned how to use some of the tools available in molecular modeling systems to explore details about the behavior of molecules of interest. | | | As to this particular case study of acetylcholine, we have learned that it is a flexible molecule that can take up five different major conformations. | | | We expect that different conformations may be favored in different environments, and this is borne out by experiment. |
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http://www.chem.ucsb.edu/MolecularModeling/CaseStudyAch.html
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| | Olympus MIC-D: Polarized Light Gallery - Acetylcholine |
| | Synthesized from dietary choline and acetyl coenzyme A, this neurotransmitter and similar substances play a central role in depression, therapies for Parkinson's and Alzheimer's diseases, and in chemical warfare against insects and humans. | | | Acetylcholine is both a central and peripheral neurotransmitter. | | | Either excitatory or inhibitory, acetylcholine's actions are dependent on the type of tissue and the nature of the receptor with which it is interacting. |
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http://www.olympusmicro.com/micd/galleries/polarized/acetylcholine2.html
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| | acetylcholine - multiple sclerosis encyclopaedia |
| | A number of drugs used in the treatment of the symptoms of multiple sclerosis operate by modifying the functioning of acetylcholine, for example Tolterodine, SSRIs and cannabinoids. | | | As well as responding to acetylcholine, nicotinic acetylcholine receptors respond to nicotine (as found in cigarettes) which is what makes nicotine so addictive. | | | There are two types of acetylcholine receptor - nicotinic and muscarinic - which are found in different parts of the nervous system. |
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http://www.mult-sclerosis.org/acetylcholine.html
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| | The Mosby Medical Encyclopedia: acetylcholine@ HighBeam Research |
| | acetylcholine, a substance in the body that allows messages to travel from one nerve to another. | | | For example, a person who decides to pick up a pen can act on the thought only when the hand receives the message from the brain. |
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http://www.highbeam.com/library/doc0.asp?DOCID=1P1:28726113&refid=ip_encyclopedia_hf
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| | Acetylcholine |
| | There are a number of drugs which inhibit processes in the ACh nerve terminal. | | | Pre- and postsynaptic ACh receptors and sites of action of some cholinergic drugs are also shown. | | | Acetylcholine, or ACh, is the first neurotransmitter we will study in detail. |
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http://www.chemistry.emory.edu/justice/chem190j/feb15.htm
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| | AllRefer.com - acetylcholine (Biochemistry) - Encyclopedia |
| | Some nerve gases operate by preventing the breakdown of acetylcholine causing continual stimulation of the receptor cells, which leads to intense spasms of the muscles, including the heart. | | | After such release, the acetylcholine is quickly broken into acetate and choline, which pass back to the first cell to be recycled into acetylcholine again. | | | The transmission of an impulse to the end of the nerve causes it to release neurotransmitter molecules onto the surface of the next cell, stimulating it. |
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http://reference.allrefer.com/encyclopedia/A/acetylch.html
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| | Specific Stimulated Uptake of Acetylcholine by Torpedo Electric Organ Synaptic Vesicles -- Parsons and Koenigsberger 77 ... |
| | The specificity of acetylcholine uptake by synaptic vesicles isolated from the electric organ of Torpedo californica was studied. | | | The results indicate that uptake of acetylcholine is conditionally specific for the transported substrate, is carried out by the synaptic vesicles rather than a contaminant of the preparation, and requires a functional protein system containing a critical sulfhydryl group. | | | Specific Stimulated Uptake of Acetylcholine by Torpedo Electric Organ Synaptic Vesicles |
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http://www.pnas.org/cgi/content/abstract/77/10/6234
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| | NEJM -- Autoantibodies to Ganglionic Acetylcholine Receptors in Autoimmune Autonomic Neuropathies |
| | LINDSTROM, J. Nicotinic Acetylcholine Receptors of Muscles and Nerves: Comparison of Their Structures, Functional Roles, and Vulnerability to Pathology. | | | Wang, N., Orr-Urtreger, A., Chapman, J., Rabinowitz, R., Korczyn, A. Deficiency of Nicotinic Acetylcholine Receptor beta 4 Subunit Causes Autonomic Cardiac and Intestinal Dysfunction. | | | Lang, P. M., Burgstahler, R., Sippel, W., Irnich, D., Schlotter-Weigel, B., Grafe, P. Characterization of Neuronal Nicotinic Acetylcholine Receptors in the Membrane of Unmyelinated Human C-Fiber Axons by In Vitro Studies. |
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http://content.nejm.org/cgi/content/abstract/343/12/847
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| | Acetylcholine Receptor Pathway |
| | View a Shockwave™ Animation of an Acetylcholine Receptor Pathway. | | | The sight, smell, and taste of food cause salivation and the stimulation of the vagus nerve to release acetylcholine. | | | When acetylcholine binds to its receptor, the parietal cell's permeability to calcium ions (Ca) is altered so that the ions move into the cell. |
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http://www.gerd.com/intro/noframe/arp.htm
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