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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. 2 (2023): February 2023
				
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									Research Articles
							
		



	
		  	 

		
	
		Interim report from a 2-year double-blind rct testing fermented papaya preparation on immune enhancement, endothelial health and qol in elderly adults
	


	
	
		

							
					Authors

						
							
								Aldo Lorenzetti
							
																																		
	
							
								Maki Osato
							
																																		
	
							
								Fang He
							
																																		
	
							
								Cristiana Aperio
							
																																		
	
							
								Antonio Ayala
							
																																		
	
							
								Saida Rasulova
							
																																		
	
							
								Mario Barbagallo
							
																																		


				
			
																	
					
												DOI:
					

					
						
							https://doi.org/10.31989/ffhd.v13i2.1050
						
					
				
			

						
										
					Abstract

					Background: Agingis associated with alterations in oxi-inflammatory-immune profile, and endothelial cell dysfunction. Indeed, increased generation of free radicals as well as immunosenescence are hallmarks of the aging process and age-related diseases. In the past 12 years or so, data has been accumulated on fermented papaya preparation (FPP®)(Osato Research Institute, Gifu, Japan), a specific functional food with robust redox and immune regulator nutrigenomics effect. The aim of this 2-year ongoing study of which we report the first-year data, was to test FPP® in redox, endothelial, and immune markers.
Methods: Study population. From a total of 106 subjects, we report the analyzed data referring to 78 clinically stable, healthy, community-dwelling males and females, aged 60 to 75 years. The study was conducted using a double-blind method with designated groups A and B to fulfill the two different treatments. The two treatments are as follows: Group A, also known as “FPP Group,” was given one sachet two times per day containing 4.5g FPP®, along with one placebo capsule provided in the morning. Group B, also known as “AA Group,” was given one papaya-flavored sachet two times per day, along with one antioxidant mixture capsule in the morning. Morning blood samples were collected and tested for: Ultra-sensitive c-reactive protein (a highly sensitive ELISA), inducible nitric oxide synthase (iNOS) (by Human Nitric Oxide Synthase kit), asymmetric dimethylarginine, or ADMA, (a competitive enzyme-linked immunosorbent assay), apoptosis of PBMCs (by Annexin V staining) and MOS 36-item short-form health survey (SF-36) to assess quality of life. Screening and blood tests were carried out as follows: Visit I: Day 0 - Baseline, Visit II: Day 60, or 2 months, Visit III: 6 months, Visit IV: 11 months.
Results: Plasma iNOS levels were comparable among both groups at the beginning of the study. FPP®-treated subjects showed a significant increased level at Visits II and III (P<0.05 vs baseline and vs AA). ADMA values were not affected by AA supplementation whereas FPP® treatment was associated with a significant decrease beginning with observation during Visit III (P<0.05 vs baseline and vs AA administration). The FPP® intervention was associated with improvements among several domains of quality of life such as physical function, general health, and mental components (P < 0.01 vs baseline and vs AA group). There was also at significant and comparable positive effect for time on vitality shown in both AA and FPP® groups.
Conclusion: Unlike with the antioxidant treatment, the FPP® intervention yielded a transient decrease of ADMA, a decrease of iNOS and lower percentage in apoptotic PBMC. These results suggest that FPP®, by a more multifaceted, subcellular mechanism, as well as non-redox modulatory properties, was beneficially effective in regulating aging markers. These mechanisms are associated with a better SF-36 profile in support of FPP® as a candidate interventional functional food for health maintenance, and specifically in middle-age/elderly subjects.

Keywords: Fermented Papaya Preparation, Nitric oxide, ADMA, apoptosis, antioxidants, SF-36

				
			
			

						
																																																													
						
		


		

						
										
					
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						Published
					

					
																			2023-02-27
																	

				
							

			
						
										

											
							
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									Vol. 13 No. 2 (2023): February 2023
								
							

						
					
											
							
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								Research Articles
							

						
					
									

			
						
										
					
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