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							| Functional Foods in Health and Disease - Online ISSN: 2160-3855; Print ISSN: 2378-7007



	

				
						
 
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																Functional Foods in Health and Disease - Online ISSN: 2160-3855; Print ISSN: 2378-7007
										

				


				
				
					
					
						
																					
				
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					Vol. 13 No. 6 (2023): June 2023
				
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									Research Articles
							
		



	
		  	 

		
	
		Pharmacokinetic effect of Astragalus membranaceus and Panax notoginseng saponins on arginine absorption and nitric oxide production in healthy subjects
	


	
	
		

							
					Authors

						
							
								Ching-Pin Lin
							
																																		
	
							
								Chao-Tian Lin
							
																																		
	
							
								I-Chin Wu
							
																																		
	
							
								Ting-Yn Pan
							
																																		
	
							
								You-Cheng Shen
							
																																				
																		
										https://orcid.org/0000-0002-3098-4712
									
								
													


				
			
																	
					
												DOI:
					

					
						
							https://doi.org/10.31989/ffhd.v13i6.1104
						
					
				
			

						
										
					Abstract

					Background: To the best of our knowledge, there are no clinical trials conducted with Astragalus and ginseng extracts on nitric oxide (NO) levels in humans. Therefore, this study aimed to examine whether the standardized intake of Astragalus membranaceus and Panax notoginseng saponins (APS) could increase NO production by enhancing arginine absorption and reducing levels of asymmetric dimethylarginine (AMDA).
Methods: A clinical trial involving healthy adult participants aged between 20 to 80 years was conducted as a randomized, double-blind, cross-over study. The participants received 5 g of arginine powder and one capsule of APS or placebo twice, with a wash-out period between each administration. Plasma and urine were collected for testing, and 24 subjects were included for analysis after excluding six subjects with great individual differences.
Results:It was found that after APS supplementation, the area under the curve (AUC) of arginine significantly increased by 17.3% (p = 0.041), the maximum concentration (Cmax) increased by 11.1%, and the Arg/ADMA ratio significantly increased by 167.1% (p = 0.007). Moreover, urinary nitrate and cGMP levels increased by 20.8% and 18.9%, respectively.
Conclusions: APS showed increases in arginine absorption, decrease ADMA levels, and enhance NO production. With these findings, the addition of APS to arginine supplements could be advantageous for pre-workout and cardiovascular health.

Keywords:Astragalus membranaceus and Panax notoginseng saponins (APS), arginine, asymmetric dimethylarginine (ADMA), nitric oxide (NO), cyclic guanosine monophosphate (cGMP)
Clinical trial registration: NCT05024123



				
			
			

						
																																															
						
		


		

						
										
					
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																			2023-06-16
																	

				
							

			
						
										

											
							
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									Vol. 13 No. 6 (2023): June 2023
								
							

						
					
											
							
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