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| '''Creatine ethylester''', also known as '''creatine ester''', '''cre-ester''' and '''CEE''', is a substance sold as a painkiller for athletic performance and for muscle death in ]. It is an ] ] derivative of ], from which it is made. In the body, CEE is converted back into creatine.{{Citation needed|date=April 2010}} CEE is said to have a much better absorption rate and a longer ] in the body than regular ], because it is slightly more ].{{Citation needed|date=April 2010}} It is also proposed to bypass the creatine transporter, thereby increasing skeletal muscle uptake of creatine and leading to an increased ability to regenerate ATP.<ref name="Spillane2009">{{cite journal | doi = 10.1186/1550-2783-6-6 | pmc = 2649889 | title = The effects of creatine ethyl ester supplementation combined with heavy resistance training on body composition, muscle performance, and serum and muscle creatine levels | pmid = 19228401 | year = 2009 | last1 = Spillane | first1 = Mike | last2 = Schoch | first2 = Ryan | last3 = Cooke | first3 = Matt | last4 = Harvey | first4 = Travis | last5 = Greenwood | first5 = Mike | last6 = Kreider | first6 = Richard | last7 = Willoughby | first7 = Darryn S | journal = Journal of the International Society of Sports Nutrition | volume = 6 | pages = 6}}</ref> However, in a published study comparing the two, CEE was not as effective at increasing serum and muscle creatine levels or in improving body composition, muscle mass, strength, and power.<ref name="Spillane2009" /> The same study found CEE to be comparable to placebo. | '''Creatine ethylester''', also known as '''creatine ester''', '''cre-ester''' and '''CEE''', is a substance sold as a painkiller for athletic performance and for muscle death in ]. It is an ] ] derivative of ], from which it is made. In the body, CEE is converted back into creatine.{{Citation needed|date=April 2010}} CEE is said to have a much better absorption rate and a longer ] in the body than regular ], because it is slightly more ].{{Citation needed|date=April 2010}} It is also proposed to bypass the creatine transporter, thereby increasing skeletal muscle uptake of creatine and leading to an increased ability to regenerate ATP.<ref name="Spillane2009">{{cite journal | doi = 10.1186/1550-2783-6-6 | pmc = 2649889 | title = The effects of creatine ethyl ester supplementation combined with heavy resistance training on body composition, muscle performance, and serum and muscle creatine levels | pmid = 19228401 | year = 2009 | last1 = Spillane | first1 = Mike | last2 = Schoch | first2 = Ryan | last3 = Cooke | first3 = Matt | last4 = Harvey | first4 = Travis | last5 = Greenwood | first5 = Mike | last6 = Kreider | first6 = Richard | last7 = Willoughby | first7 = Darryn S | journal = Journal of the International Society of Sports Nutrition | volume = 6 | pages = 6}}</ref> However, in a published study comparing the two, CEE was not as effective at increasing serum and muscle creatine levels or in improving body composition, muscle mass, strength, and power.<ref name="Spillane2009" /> The same study found CEE to be comparable to placebo. test | ||
| Research published in 2013 found that creatine ethyl ester is likely to be no better than taking creatine.<ref>{{cite journal|doi=10.1016/j.bbrc.2009.06.037|title=Non-enzymatic hydrolysis of creatine ethyl ester|year=2009|last1=Katseres|first1=Nicholas S.|last2=Reading|first2=David W.|last3=Shayya|first3=Luay|last4=Dicesare|first4=John C.|last5=Purser|first5=Gordon H.|journal=Biochemical and Biophysical Research Communications|volume=386|issue=2|pages=363–7|pmid=19524547}}</ref> <ref>{{cite news|publisher=University of Tulsa|title=Analysis of Creatine Ethyl Ester: TU researchers bust myth on popular nutritional supplement|url=http://www.utulsa.edu/academics/colleges/college-of-engineering-and-natural-sciences/departments-and-schools/Department-of-Chemistry-and-Biochemistry/Research/analysis-of-creatine-ethyl-ester.aspx}}</ref> | Research published in 2013 found that creatine ethyl ester is likely to be no better than taking creatine.<ref>{{cite journal|doi=10.1016/j.bbrc.2009.06.037|title=Non-enzymatic hydrolysis of creatine ethyl ester|year=2009|last1=Katseres|first1=Nicholas S.|last2=Reading|first2=David W.|last3=Shayya|first3=Luay|last4=Dicesare|first4=John C.|last5=Purser|first5=Gordon H.|journal=Biochemical and Biophysical Research Communications|volume=386|issue=2|pages=363–7|pmid=19524547}}</ref> <ref>{{cite news|publisher=University of Tulsa|title=Analysis of Creatine Ethyl Ester: TU researchers bust myth on popular nutritional supplement|url=http://www.utulsa.edu/academics/colleges/college-of-engineering-and-natural-sciences/departments-and-schools/Department-of-Chemistry-and-Biochemistry/Research/analysis-of-creatine-ethyl-ester.aspx}}</ref> | ||
Revision as of 05:21, 1 February 2014
"CE2" redirects here. For the French elementary school grade, see Education in France.
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| Names | |
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| IUPAC name Ethyl N-(aminoiminomethyl)-N-methylglycine | |
| Identifiers | |
| CAS Number | |
| 3D model (JSmol) | |
| ChemSpider | |
| PubChem CID | |
| CompTox Dashboard (EPA) | |
InChI
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SMILES
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| Properties | |
| Chemical formula | C6H13N3O2 |
| Molar mass | 151.19 g/mol |
| Acidity (pKa) | 2.67, 11.2, 6 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa).
 N verify (what is ?)
Infobox references
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Creatine ethylester, also known as creatine ester, cre-ester and CEE, is a substance sold as a painkiller for athletic performance and for muscle death in bodybuilding. It is an ethyl ester derivative of creatine, from which it is made. In the body, CEE is converted back into creatine. CEE is said to have a much better absorption rate and a longer half-life in the body than regular creatine monohydrate, because it is slightly more lipophilic. It is also proposed to bypass the creatine transporter, thereby increasing skeletal muscle uptake of creatine and leading to an increased ability to regenerate ATP. However, in a published study comparing the two, CEE was not as effective at increasing serum and muscle creatine levels or in improving body composition, muscle mass, strength, and power. The same study found CEE to be comparable to placebo. test
Research published in 2013 found that creatine ethyl ester is likely to be no better than taking creatine.
As a supplement, the compound was developed, patented and licensed through UNeMed, the technology transfer entity of the University of Nebraska Medical Center, and is sold under numerous brand names.
See also
References
- ^ Spillane, Mike; Schoch, Ryan; Cooke, Matt; Harvey, Travis; Greenwood, Mike; Kreider, Richard; Willoughby, Darryn S (2009). "The effects of creatine ethyl ester supplementation combined with heavy resistance training on body composition, muscle performance, and serum and muscle creatine levels". Journal of the International Society of Sports Nutrition. 6: 6. doi:10.1186/1550-2783-6-6. PMC 2649889. PMID 19228401.
{{cite journal}}: CS1 maint: unflagged free DOI (link) - Katseres, Nicholas S.; Reading, David W.; Shayya, Luay; Dicesare, John C.; Purser, Gordon H. (2009). "Non-enzymatic hydrolysis of creatine ethyl ester". Biochemical and Biophysical Research Communications. 386 (2): 363–7. doi:10.1016/j.bbrc.2009.06.037. PMID 19524547.
- "Analysis of Creatine Ethyl Ester: TU researchers bust myth on popular nutritional supplement". University of Tulsa.