Results 31 to 40 of about 2,222 (191)

Electrochemical determination of synephrine by using nafion/UiO-66/graphene-modified screen-printed carbon electrode

Current Research in Food Science, 2022
The screen-printed carbon electrode (SPCE) was one step modified with graphene (GN) and UiO-66 composites in nafion solution as a portable sensor (nafion/UiO-66/GN/SPCE) for the detection of synephrine.
Yi Zhang, Zongyi You, Liangliang Liu, Shengwen Duan, Aiping Xiao   +4 more
doaj   +1 more source

Effect of p-Synephrine on Fat Oxidation Rate during Exercise of Increasing Intensity in Healthy Active Women [PDF]

, 2022
p-Synephrine is the principal alkaloid of bitter orange (Citrus aurantium). Several recent investigations have found that the intake of 2–3 mg/kg of p-synephrine raises fat oxidation rate during exercise of low-to-moderate intensity. However, these
Amaro-Gahete, Francisco J., Millán Aguilar-Navarro, Gutiérrez-Hellín, Jorge, María Posada-Ayala, David Varillas-Delgado, Posada-Ayala, María, Aguilar-Navarro, Millán, Muñoz Moreno, Alejandro, Varillas Delgado, David, Aguilar Navarro, Millán, Muñoz, Alejandro, Posada Ayala, María, Álvaro López-Samanes, López Samanés, Álvaro, Varillas-Delgado, David, Ruiz Moreno, Carlos, Francisco J. Amaro-Gahete, López-Samanes, Álvaro, Carlos Ruiz-Moreno, Ruiz-Moreno, Carlos, Juan Del Coso, Del Coso, Juan, Gutiérrez Hellín, Jorge, Jorge Gutiérrez-Hellín, Alejandro Muñoz   +24 more
core   +3 more sources

The Safety and Efficacy of Citrus aurantium (Bitter Orange) Extracts and p-Synephrine: A Systematic Review and Meta-Analysis [PDF]

, 2022
Synephrine has been used to promote weight loss; however, its safety and efficacy have not been fully established. The goals of our study were to give an overview of the safety and efficacy of p-synephrine, to systematically evaluate its efficacy ...
Dorottya Koncz, Barbara Tóth, Roza, Orsolya, Tóth, Barbara, Bahar, Muh. Akbar, Csupor, Dezső, Muh. Akbar Bahar, Orsolya Roza, Dezső Csupor, Koncz, Dorottya   +9 more
core   +2 more sources

p-Synephrine, the main protoalkaloid of Citrus aurantium, raises fat oxidation during exercise in elite cyclists. [PDF]

, 2021
The aim of this study was to investigate the acute effects of p-synephrine ingestion on substrate oxidation during exercise in elite cyclists. Fifteen elite cyclists volunteered to participate in a double blind, crossover, randomized and placebo ...
Rodríguez, Iván, Aguilar Navarro, Millán, Baltazar Martins, Gabriel, Del Coso, Juan, Gutiérrez Hellín, Jorge, Ruiz Moreno, Carlos, Lara, Beatriz   +6 more
core   +1 more source

Synephrine, a Component of Evodiae Fructus, Constricts Isolated Rat Aorta via Adrenergic and Serotonergic Receptors

Journal of Pharmacological Sciences, 2009
We investigated the effects of Evodiae Fructus and synephrine, one of the components of Evodiae Fructus, on blood vessels. We found that Evodiae Fructus (1 × 10−4 g/mL) had constrictive effects on rat aorta.
Tomoko Hibino, Mitsutoshi Yuzurihara, Yoshio Kase, Atsushi Takeda   +3 more
doaj   +1 more source

Activities of octopamine and synephrine stereoisomers on α‐adrenoceptors [PDF]

British Journal of Pharmacology, 1988
The activities of the (‐)‐ and (+)‐forms of m‐ and p‐octopamine and m‐ and p‐synephrine on α1‐adrenoceptors from rat aorta and anococcygeus and α2‐adrenoceptors from rabbit saphenous vein were compared with those of noradrenaline (NA). The rank order of potency of the (‐)‐ forms on α1‐adrenoceptors from rat aorta and α2‐adrenoceptors was NA > m ...
C M, Brown, J C, McGrath, J M, Midgley, A G, Muir, J W, O'Brien, C M, Thonoor, C M, Williams, V G, Wilson   +7 more
openaire   +2 more sources

Acute p‑synephrine ingestion increases whole‑body fat oxidation during 1‑h of cycling at Fatmax [PDF]

, 2019
Purpose: p-Synephrine, the principal alkaloid of bitter orange (Citrus aurantium), is widely used in dietary supplements for weight loss due to its purported effect of increasing fat oxidation.
Del Coso, J., Gutiérrez-Hellín, Jorge, Ruiz-Moreno, Carlos   +2 more
core   +3 more sources

Citrus p-Synephrine Improves Energy Homeostasis by Regulating Amino Acid Metabolism in HFD-Induced Mice. [PDF]

Nutrients
p-Synephrine is a common alkaloid widely distributed in citrus fruits. However, the effects of p-synephrine on the metabolic profiles of individuals with energy abnormalities are still unclear.
Bai J, Tan X, Tang S, Liu X, Shao L, Wang C, Huang L.   +6 more
europepmc   +2 more sources

Phenylephrine (Neo-synephrine) Terminated Ventricular Tachycardia [PDF]

Circulation, 1974
Five cases of recurrent, wide QRS complex tachycardia which could be terminated with phenylephrine are presented. These cases fulfilled all accepted criteria for ventricular tachycardia. Carotid sinus massage with and without edrophonium hydrochloride had no effect on the ventricular activity but selectively slowed the atrial rate in cases of ...
M B, Waxman, E, Downar, N D, Berman, C H, Felderhof   +3 more
openaire   +2 more sources

p-Synephrine Indicates Internal Maturity of Citrus grandis (L.) Osbeck cv. Mato Peiyu—Reclaiming Functional Constituents from Nonedible Parts

Molecules, 2023
The processing of Citrus grandis Osbeck cv. Mato Peiyu (CGMP) fruits generates a considerable amount of waste, mainly the flavedo, albedo, and segment membrane; the generated waste yields severe environmental and economic challenges.
Li-Yun Lin, Chiung Chi Peng, Yi-Ping Huang, Kuan-Chou Chen, Robert Y. Peng   +4 more
doaj   +1 more source