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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1944 1
1947 1
1948 1
1949 1
1950 8
1951 6
1952 3
1953 1
1954 4
1956 2
1957 1
1959 1
1961 1
1962 2
1963 16
1964 13
1965 12
1966 7
1967 14
1968 14
1969 9
1970 6
1971 6
1972 6
1973 4
1974 8
1975 4
1976 10
1977 8
1978 5
1979 5
1980 9
1981 5
1982 1
1983 5
1984 4
1985 10
1986 8
1987 10
1988 5
1989 4
1990 10
1991 3
1992 4
1993 4
1994 3
1995 3
1996 5
1997 7
1998 2
1999 4
2000 4
2001 6
2002 2
2003 8
2004 14
2005 19
2006 26
2007 26
2008 12
2009 14
2010 16
2011 24
2012 12
2013 19
2014 12
2015 7
2016 17
2017 28
2018 30
2019 22
2020 19
2021 28
2022 19
2023 8
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628 results
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p-Synephrine, ephedrine, p-octopamine and m-synephrine: Comparative mechanistic, physiological and pharmacological properties.
Stohs SJ, Shara M, Ray SD. Stohs SJ, et al. Phytother Res. 2020 Aug;34(8):1838-1846. doi: 10.1002/ptr.6649. Epub 2020 Feb 26. Phytother Res. 2020. PMID: 32101364 Free PMC article. Review.
Confusion and misunderstanding exist regarding the lack of cardiovascular and other adverse health effects of p-synephrine and p-octopamine relative to ephedrine and m-synephrine (phenylephrine) which are known for their effects on the cardiovascular system. ...The …
Confusion and misunderstanding exist regarding the lack of cardiovascular and other adverse health effects of p-synephrine and p-octo …
Effects of p-Synephrine during Exercise: A Brief Narrative Review.
Ruiz-Moreno C, Del Coso J, Giráldez-Costas V, González-García J, Gutiérrez-Hellín J. Ruiz-Moreno C, et al. Nutrients. 2021 Jan 15;13(1):233. doi: 10.3390/nu13010233. Nutrients. 2021. PMID: 33467423 Free PMC article. Review.
The p-synephrine is the principal phytochemical found in bitter orange (Citrus aurantium). ...However, the effects of p-synephrine on fat oxidation during exercise have been investigated in the last few years. ...
The p-synephrine is the principal phytochemical found in bitter orange (Citrus aurantium). ...However, the effects of p-synephrine …
[Synephrine in dietary supplements and specialized foodstuffs: biological activity, safety and methods of analysis].
Perova IB, Eller KI, Musatov AV, Tymolskaya EV. Perova IB, et al. Vopr Pitan. 2021;90(6):101-113. doi: 10.33029/0042-8833-2021-90-6-101-113. Epub 2021 Oct 26. Vopr Pitan. 2021. PMID: 35032130 Review. Russian.
Because of insufficient safety data, the consumption of synephrine is regulated in the Russian Federation and abroad. The upper permissible level of synephrine consumption in the Russian Federation is 30 mg per day. Various cases of adulteration of DS and SF for wei …
Because of insufficient safety data, the consumption of synephrine is regulated in the Russian Federation and abroad. The upper permi …
Safety, Efficacy, and Mechanistic Studies Regarding Citrus aurantium (Bitter Orange) Extract and p-Synephrine.
Stohs SJ. Stohs SJ. Phytother Res. 2017 Oct;31(10):1463-1474. doi: 10.1002/ptr.5879. Epub 2017 Jul 28. Phytother Res. 2017. PMID: 28752649 Free PMC article. Review.
Questions have been raised about the safety of p-synephrine because it has some structural similarity to ephedrine. This review focuses on current human, animal, in vitro, and mechanistic studies that address the safety, efficacy, and mechanisms of action of bitter orange …
Questions have been raised about the safety of p-synephrine because it has some structural similarity to ephedrine. This review focus …
Synephrine: from trace concentrations to massive consumption in weight-loss.
Rossato LG, Costa VM, Limberger RP, Bastos Mde L, Remião F. Rossato LG, et al. Food Chem Toxicol. 2011 Jan;49(1):8-16. doi: 10.1016/j.fct.2010.11.007. Epub 2010 Nov 12. Food Chem Toxicol. 2011. PMID: 21075161 Review.
Synephrine exists in three different positional isomers; however, only p- and m-synephrine have been described in weight-loss products. The alleged effectiveness of synephrine-containing supplements is attributed to the thermogenic effects arising from syn …
Synephrine exists in three different positional isomers; however, only p- and m-synephrine have been described in weight-loss …
[Risk assessment of synephrine in dietary supplements].
Bakhyia N, Dusemund B, Richter K, Lindtner O, Hirsch-Ernst KI, Schäfer B, Lampen A. Bakhyia N, et al. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz. 2017 Mar;60(3):323-331. doi: 10.1007/s00103-016-2506-5. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz. 2017. PMID: 28058460 Review. German.
Synephrine is a sympathomimetic phenylethylamine derivative that occurs naturally in citrus fruits. ...Some human intervention studies investigating the acute effects of synephrine on blood pressure and heart rate of healthy, normotensive test persons indicate that …
Synephrine is a sympathomimetic phenylethylamine derivative that occurs naturally in citrus fruits. ...Some human intervention studie …
Effects of ingesting a pre-workout dietary supplement with and without synephrine for 8 weeks on training adaptations in resistance-trained males.
Jung YP, Earnest CP, Koozehchian M, Cho M, Barringer N, Walker D, Rasmussen C, Greenwood M, Murano PS, Kreider RB. Jung YP, et al. J Int Soc Sports Nutr. 2017 Jan 3;14:1. doi: 10.1186/s12970-016-0158-3. eCollection 2017. J Int Soc Sports Nutr. 2017. PMID: 28096757 Free PMC article. Clinical Trial.
BACKGROUND: The purpose of this study was to examine whether ingesting a pre-workout dietary supplement (PWS) with and without synephrine (S) during training affects training responses in resistance-trained males. ...However, these effects were similar to PLA responses aft …
BACKGROUND: The purpose of this study was to examine whether ingesting a pre-workout dietary supplement (PWS) with and without synephrine …
Effects of acute ingestion of a pre-workout dietary supplement with and without p-synephrine on resting energy expenditure, cognitive function and exercise performance.
Jung YP, Earnest CP, Koozehchian M, Galvan E, Dalton R, Walker D, Rasmussen C, Murano PS, Greenwood M, Kreider RB. Jung YP, et al. J Int Soc Sports Nutr. 2017 Jan 12;14:3. doi: 10.1186/s12970-016-0159-2. eCollection 2017. J Int Soc Sports Nutr. 2017. PMID: 28096758 Free PMC article. Clinical Trial.
BACKGROUND: The purpose of this study was to examine the effects of acute ingestion of a pre-workout dietary supplement (PWS) with and without p-synephrine (S) on perceptions of readiness to perform, cognitive function, exercise performance, and markers of safety. ...The p …
BACKGROUND: The purpose of this study was to examine the effects of acute ingestion of a pre-workout dietary supplement (PWS) with and witho …
A review of the receptor-binding properties of p-synephrine as related to its pharmacological effects.
Stohs SJ, Preuss HG, Shara M. Stohs SJ, et al. Oxid Med Cell Longev. 2011;2011:482973. doi: 10.1155/2011/482973. Epub 2011 Aug 1. Oxid Med Cell Longev. 2011. PMID: 21904645 Free PMC article. Review.
Because of structural similarities, the pharmacological effects of p-synephrine are widely assumed to be similar to those of ephedrine, m-synephrine (phenylephrine), and endogenous amine neurotransmitters as norepinephrine and epinephrine. ...This paper summarizes t …
Because of structural similarities, the pharmacological effects of p-synephrine are widely assumed to be similar to those of ephedrin …
Electrochemical determination of synephrine by using nafion/UiO-66/graphene-modified screen-printed carbon electrode.
Zhang Y, You Z, Liu L, Duan S, Xiao A. Zhang Y, et al. Curr Res Food Sci. 2022 Jul 20;5:1158-1166. doi: 10.1016/j.crfs.2022.07.008. eCollection 2022. Curr Res Food Sci. 2022. PMID: 35899039 Free PMC article.
The nafion/UiO-66/GN/SPCE showed the maximum electrochemical signals for synephrine when comparing fabricated components in the cyclic voltammetric method. ...Under optimal conditions, the sensor exhibited a good detection limit (0.04 mumol L(-1)) for synephrine wit …
The nafion/UiO-66/GN/SPCE showed the maximum electrochemical signals for synephrine when comparing fabricated components in the cycli …
628 results