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Topic: S-adenosyl methionine

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Methionine - Wikipedia, the free encyclopedia As a consequence, methionine is incorporated into the N-terminal position of all proteins in eukaryotes and archaea during translation, although it is usually removed by post-translational modification. Methionine is one of only two amino acids encoded by a single codon (AUG) in the standard genetic code (tryptophan, encoded by UGG, is the other). Methionine (Met, M. S) is an essential nonpolar amino acid, and a lipotropic. en.wikipedia.org /wiki/Methionine   (212 words)

S-adenosyl methionine - Wikipedia, the free encyclopedia S-adenosyl methionine (SAM) is an enzymatic cofactor involved in methyl group transfers. S-Adenosyl methionine (SAMe) versus celecoxib for the treatment of osteoarthritis symptoms: A double-blind cross-over trial SAM has been shown to have a therapeutic effect in liver disease, mood disorders and osteoporosis, many of which are supported by hundreds of research articles. en.wikipedia.org /wiki/S-adenosyl-methionine   (427 words)

Health Library - Methionine is one of the essential amino acids (building blocks of protein), meaning that it cannot be produced by the body, and must be provided by the diet. Methionine (2 grams per day) in combination with several antioxidants, reduced pain and recurrences of attacks of pancreatitis in a small but well-controlled trial. Animal studies suggest that diets high in methionine, in the presence of B-vitamin deficiencies, may increase the risk for atherosclerosis (hardening of the arteries) by increasing blood levels of cholesterol and a compound called homocysteine. www.yalenewhavenhealth.org /library/healthguide/en-us/Cam/topic.asp?hwid=hn-2884008   (965 words)

Differential Expression of the S-Adenosyl-l-Methionine Synthase Genes during Pea Development -- Gómez-Gómez and Carrasco 117 (2): 397 -- PLANT PHYSIOLOGY SAMS (EC 2.5.1.6) is a key enzyme in plant metabolism, catalyzing the biosynthesis of SAM from Met and ATP. SAMS genes have been considered to be "housekeeping genes" that are expected to be expressed constitutively in all tissues. In the apex SAM could be decarboxylated and used for the biosynthesis of spermidine and spermine. www.plantphysiol.org /cgi/content/full/117/2/397   (4461 words)

Plant Gene Register PGR00-033 S-adenosyl-L-methionine synthetase (SAMS; EC 2.5.1.6) catalyzes the biosynthesis of S-adenosyl-L-methionine from L-methionine and ATP. In addition, decarboxylated SAM acts as a propylamine group donor in the biosynthesis of polyamines, and in plants SAM is a precursor molecule in the biosynthesis of the phytohormone, ethylene (Yang and Hoffman, 1984). Different SAMS isoforms have been identified and grouped as type I or type II enzymes; however, no significant differences were detected in enzymatic properties (Schroder et al., 1997). www.tarweed.com /pgr/PGR00-033.html   (866 words)

Changes in GE2270 antibiotic production in Planobispora rosea through modulation of methylation metabolism -- Gastaldo and Marinelli 149 (6): 1523 -- Microbiology Haydock, S. F., Dowson, J. A., Dhillon, N., Roberts, G. A., Cortes, J. and Leadlay, P. Cloning and sequence analysis of genes involved in erythromycin biosynthesis in Saccharopolyspora erythraea: sequence similarities between EryG and a family of S-adenosylmethionine-dependent methyltransferases. groups of staurosporine derived from methionine (Yang et al. Pospisil, S. and Zima, J. Biosynthesis of monensins and 3-O-demethylmonensins in Streptomyces cinnamonensis in the presence of methylation inhibitors. mic.sgmjournals.org /cgi/content/full/149/6/1523   (4593 words)

S-Adenosyl Methionine as a food supplement: Pros' and Cons' S-Adenosyl Methionine (SAM or SAM-e; pronounced "sammy") is an amino acid. In the human body SAM is known to be essential to at least 35 biochemical processes, including maintaining the structure of cell membranes and manufacturing substances vital to transmitting nerve impulses and influencing emotions and moods. SAM is converted into homocysteine in the body. www.stoneclinic.com /sam_e.htm   (1780 words)

S-Adenosyl-L-Methionine, SAM-e - SAM S-Adenosyl-L-Methionine alleviates Major Depression [scientific research - humans]. - SAM S-Adenosyl-L-Methionine is especially effective in treating Postpartum Depression. Supplemental SAM reduces the death-rate from overdoses of Paracetamol [scientific research: when rats are given supplemental SAM within one hour of Paracetamol overdose, death can be prevented in 100% of cases; if supplemental SAM is administered within 5 hours of Paracetamol overdose, the death rate is significantly reduced]. www.thevitaminoutlet.com /Info_Pages/details/sam_details.htm   (1091 words)

S-Adenosyl-L-Methionine (SAM) Update, Part I SAM was also studied against other anti-inflammatory medications such as naproxen,5 indomethacin,6 and piroxicam.7 SAM was just as effective as non-steroidal anti-inflammatories in all of these studies, but did not display the gastric side effects that were seen in patients who took NSAIDs. I wrote an article about SAM which appeared a few years ago in Dynamic Chiropractic.1 My interest in SAM at that time was based on its ability to reduce pain in individuals with osteoarthritis. These patients were under the care of ten general practitioners and took SAM at a dose of 600 mg a day for two weeks and then 400 mg a day for the next 24 months. www.chiroweb.com /archives/16/21/07.html   (770 words)

Spec Sheet Display A new process has been developed which utilizes an engineered strain of yeast that eliminates the need to provide a source of methionine, an expensive nucleic acid, in the production of S-adenosyl methionine (SAM). In young, healthy people, SAM is well distributed throughout the body as a result of its synthesis from methionine by enzymes using ATP. SAM is available as an over-the-counter dietary supplement, and has been used in the treatment of depression, osteoarthritis, fibromyalgia, liver disease, chronic fatigue syndrome, and migraine headaches. www.otc.utexas.edu /Technologies/Display.jsp?&ip_info_id=1204   (301 words)

Product Abstract: Same (S-Adenosyl-L-Methionine) Chemoprevention of rat liver carcinogenesis by S-adenosyl-L- methionine: a long-term study. SAM effect on prenoplastic cell growth is abolished by 5-azacytidine, a hypomethylating agent, indicating the involvement of DNA methylation. The administration of SAM either intravenously or orally is associated with a significant rise of CSF SAM, indicating that it crosses the blood-brain barrier in humans. www.lef.org /prod_hp/abstracts/php-ab120.html   (7971 words)

S-adenosyl-L-methionine is an effector in the posttranscriptional autoregulation of the cystathionine {gamma}-synthase gene in Arabidopsis -- Chiba et al. 100 (18): 10225 -- Proceedings of the National Academy of Sciences Schematic representation of the biosynthetic pathway of methionine and the metabolism of AdoMet. Reporter activity relative to that in samples not treated with methionine or AdoMet was calculated, and averages ± SD of triplicate experiments are shown. In the case of WT protoplasts, the effect of 0.1 mM methionine treatment was also analyzed. www.pnas.org /cgi/content/full/100/18/10225   (4622 words)

S-adenosyl-L-methionine Information Loss of activity in the enzyme methionine adenosyltransferase (MAT) results in decreased concentrations of SAMe and depletion of glutathione. Up to half of the daily intake of methionine is metabolized into SAMe in the liver. SAMe is present only in minute amounts in the diet, and its principle source in the body is through methionine metabolism. www.vitaminherbuniversity.com /topic.asp?categoryid=3&topicid=1045   (1498 words)

S-Adenosyl-L-methionine-Dependent Restriction Enzymes -- Sistla and Rao 39 (1): 1 -- Critical Reviews in Biochemistry and Molecular Biology suicide under conditions of methionine starvation, where unmethylated In vivo experiments of Lark and Arber (1970) with methionine Klimasauskas, S., Timinskas, A., Menkevicius, S., Butkiene, D., Butkus, V., and Janulaitis, A. Sequence motifs characteristic of DNA [cytosine-N4] methyltransferases: similarity to adenine and cytosine-C5 DNA-methylases. www.crbmb.com /cgi/content/full/39/1/1   (8362 words)

Methylcycle, AdoMetDC, and O-Methyltransferases (OMTs) There was a long-standing puzzle with respect to the biosynthesis of methionine: all of the enzymes were located to the plastids (chloroplasts), except for the final enzyme, the methionine synthase. The methyl group of methionine is transferred to the substrate, and the demethylated AdoMet is released, Thanks for invaluable help: We would like to stress here that the enzymatic characterization of the plant methionine synthase was only possible because of the generous help by Rowena Matthews at the University of Michigan (USA). www.biologie.uni-freiburg.de /data/bio2/schroeder/Methylcycle_General.html   (1734 words)

S-Adenosyl-L-Methionine (SAMe) Bottiglieri T, Hyland K. S-adenosylmethionine levels in psychiatric and neurological disorders: a review. A randomized double blind, placebo controlled trial of intravenous loading with S-adenosylmethionine (SAM) followed by oral SAMe therapy in patients with knee osteoarthritis. Cofactors for the metabolism of homocysteine to methionine are folic acid, vitamin B12 and trimethylglycine (betaine). www.gettingwell.com /drug_info/nmdrugprofiles/nutsupdrugs/sad_0231.shtml   (1995 words)

News - S-Adenosyl Methionine May Be As Efficacious As Celecoxib in Management of Knee Osteoarthritis, But Onset of Action Is Slower By Kathleen A. Wildasin, MA The dietary supplement S-adenosyl methionine (SAMe) has a "slower onset of action" than does the cyclooxygenase-2 (COX-2) inhibitor celecoxib, but the 2 treatments are equally efficacious in the treatment of symptoms of knee osteoarthritis, new research shows. BMC Musculoskeletal Disorders 2004 Feb. 26;5:1:6 "S-Adenosyl methionine (SAMe) versus celecoxib for the treatment of osteoarthritis symptoms: A double-blind cross-over trial. S-Adenosyl Methionine May Be As Efficacious As Celecoxib in Management of Knee Osteoarthritis, But Onset of Action Is Slower www.docguide.com /news/content.nsf/news/8525697700573E1885256E80002925F1   (763 words)

News - S-Adenosyl-L-Methionine Results Similar to Imipramine in Major Depression A DGReview of :"A double-blind, randomized parallel-group, efficacy and safety study of intramuscular S -adenosyl- L -methionine 1,4-butanedisulphonate (SAMe) versus imipramine in patients with major depressive disorder" Intramuscular S-adenosyl-l-methionine (SAMe) appears to be comparable to oral imipramine for the treatment of major depression, Italian researchers have found in a short-term trial. "A double-blind, randomized parallel-group, efficacy and safety study of intramuscular S -adenosyl- L -methionine 1,4-butanedisulphonate (SAMe) versus imipramine in patients with major depressive disorder" docguide.com /news/content.nsf/news/8525697700573E1885256C8B005CF1C4   (416 words)

Twice the Results With One Powerful Product: SAMe (S-adenosyl-methionine) (text version) Not a prescription drug or an herb, SAMe (S-adenosyl- methionine) is a synthetic replication of a compound that the body makes naturally from methionine, an amino acid found in protein-rich foods. This all-natural product may just replace even the most popular treatments currently being used for joint pain and depression, without many of the negative side-effects they usually bring. www.immunesupport.com /articles/same/same003txt.htm   (742 words)

S-Adenosyl Methionine (SAMe) SAMe, or S-adenosyl-l-methionine, is an activated from of the essential amino acid methionine. SAMe is present in most living cells and is not found abundantly in the diet, although methionine can be. SAMe is formed when ATP and methionine are combined. www.webvitamins.com /nutrient.aspx?ID=1924   (180 words)

LifeLink - SAM-e SAMe (often mispronounced unless spelled SAM-e) is an acronym for S-adenosyl methionine — i.e, the amino acid methionine linked to the DNA base adenosine. SAMe deficiencies would result from deficiencies of the factors or cofactors required to make it — methionine, choline, or B-vitamins. SAMe has also been shown to be beneficial in treating osteoarthritis, depression, and liver disease. www.lifelinknet.com /siteResources/Products/SAM-e.asp   (123 words)

S-Adenosyl Methionine [SAMe] - Nutraceuticals surveys and consultancy S-Adenosyl Methionine [SAMe] - Nutraceuticals surveys and consultancy SAM is derived by extraction from specific strains of yeast. SAMe has become established as a successful pharmaceutical/ nutraceutical product especially popular in the U.S. At present there is shortage of SAMe limiting availability. www.lhepner.com /nu9.html   (198 words)

Holistic Health Encyclopedia - S Sulfur has a vital relationship with protein, since sulfur is found in the amino acids methionine, cystine, and cysteine. Disinfestation of the skin is accomplished by applying creams or ointments containing gamma benzene hexachloride or benzyl benzoate. A variety of S. scabiei causes mange in animals. www.findhealer.com /glossary/S.php3   (8360 words)

Sam-e - Antidepressant Supplement Remedy Depression Symptoms Stress Relief Anxiety Health In young, healthy people SAM-e is well distributed throughout the body as a result of its synthesis from methionine by enzymes using ATP. SAM-e is used by the body in three important pathways: methylation (contributing methyl groups to activate certain molecules); the synthesis of polyamines (for cell growth, gene expression, neuronal regeneration, etc.); and trans-sulfuration (synthesis of cysteine, glutathione and other sulfate chemicals). However, in sickness and in age, system levels may become depleted. www.health-marketplace.com /SAM-e-400mg.htm   (319 words)

British Journal of Pharmacology - Influence of S-adenosyl-L-methionine on chronic mild stress-induced anhedonia in castrated rats MANN, S. and, HILL, M.W. (1983) Activation and inactivation of striatal tyrosine hydroxylase: the effects of pH, ATP, and cyclic AMP, S-adenosylmethionine and S-adenosylhomocysteine.. ALGERI, S.,, CATTO, E.,, CURCIO, M.,, PONZIO, F. and, STRAMENTINOLI, G. 1979 Changes in rat brain noradrenaline and serotonin metabolism after administration of S-adenosyl-L-methionine.. Garattini, S. pp) 447–458 Stuttgart: FK Schautauer Verlag. www.nature.com /bjp/journal/v127/n3/full/0702589a.html   (6035 words)

SAMe (S-Adenosyl L-Methionine) on NutritionOnline.com SAMe, made from the amino acid methionine, is a naturally occurring molecule distributed throughout most body tissues and fluids. Many people are finding SAMe to be a side-effect free best solution for healthy mood and attitude as well as joint health. Additional benefits include promoting liver health, as well as being very effective in soothing joints. www.nutritiononline.com /item.jsp?item=583   (302 words)

NIH Guide: S-ADENOSYL-L-METHIONINE (SAME) AND LIVER DISEASE Possible topics responsive to this RFA include, but are not limited to: o Investigation of the mechanisms by which hepatotoxic agents, including alcohol, impair methionine (SAMe precursor) metabolism and its impact on hepatic SAMe and glutathione levels? o Identification of the role of folate deficiency in methionine metabolism, and ultimately SAMe and glutathione levels. 2) Chronic ethanol intake depletes hepatic SAMe levels that are associated with impaired metabolism of methionine, a precursor of SAMe. grants.nih.gov /grants/guide/rfa-files/RFA-AA-02-011.html   (2776 words)

- SHOP.COM Jarrow Formulas’ SAMe 200 contains pharmaceutical grade stabilized S-Adenosyl Methionine (SAMe), a naturally occuring compound produced by the body. SAMe is formed when the body combines the amino acid L-methionine with ATP (adenosine triphosphate), the primary energy molecule found in physiologic processes. When you buy from more than one store, we pay any additional shipping - our Holiday gift to you. www.shop.com /op/aprod-p27167225   (262 words)

SAMe, 400 mg, Enteric Coated (S-Adenosyl Methionine) (30 tablets)(SAVE 40% DURING OUR SOURCE NATURALS SALE!) (Mfr: Source Naturals) SAMe, 400 mg, Enteric Coated (S-Adenosyl Methionine) (30 tablets)(SAVE 40% DURING OUR SOURCE NATURALS SALE!) (Mfr: Source Naturals) Prices and product availability are subject to change without notice. Note: Registration is NOT required to place an order. www.gaines.com /store/Source/SN1400info.html   (467 words)

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