A modified method of platelet-rich plasma preparation and level measurement of growth factors
	    		
		   		
		   			
		   		
	    	
    	 
    	10.3760/cma.j.issn.1671-0290.2021.06.020
   		
        
        	
        		- VernacularTitle:改良法制备自体富血小板血浆及其生长因子含量分析
 
        	
        	
        	
        		- Author:
	        		
		        		
		        		
			        		Chenhong XUE
			        		
			        		
			        		
			        			1
			        			
			        		
			        		
			        		
			        		
			        		;
		        		
		        		
		        		
			        		Zhizhen HUANG
			        		
			        		;
		        		
		        		
		        		
			        		Fen PENG
			        		
			        		;
		        		
		        		
		        		
			        		Zhou CHEN
			        		
			        		;
		        		
		        		
		        		
			        		Jianzhong ZHANG
			        		
			        		
		        		
		        		
		        		
		        		
		        			
			        		
			        		Author Information
			        		
		        		
		        		
			        		
			        		
			        			1. 北京大学人民医院皮肤科,北京 100044
			        		
		        		
	        		
        		 
        	
        	
        	
        	
        		- Keywords:
        			
	        			
	        				
	        				
			        		
				        		Platelet-rich plasma;
			        		
			        		
			        		
				        		Modification method;
			        		
			        		
			        		
				        		Platelet-rich plasma;
			        		
			        		
			        		
				        		Growth factors;
			        		
			        		
			        		
				        		Enzyme-linked immunosorbent assay;
			        		
			        		
			        		
				        		Concentration
			        		
			        		
	        			
        			
        		
 
        	
            
            
            	- From:
	            		
	            			Chinese Journal of Medical Aesthetics and Cosmetology
	            		
	            		 2021;27(6):531-534
	            	
            	
 
            
            
            	- CountryChina
 
            
            
            	- Language:Chinese
 
            
            
            	- 
		        	Abstract:
			       	
			       		
				        
				        	Objective:To establish a safe, effective, simple, and more economically feasible method to obtain platelet-rich plasma (PRP).Methods:Whole blood was collected from 24 patients with atrophic acne scars on the face. For the preparation of PRP, a slight modification of Choukroun's method was used. Enzyme-linked immunosorbent assay (ELISA) was used to measure the levels of platelet derived growth factor-β(PDGF-β), transforming growth factor-β1 (TGF-β1), epidermal growth factor (EGF), vascular endothelial growth factor (VEGF), basic fibroblast growth factor (bFGF), isulin-like growth factor-1 (IGF-1) in normal plasma and PRP.Results:The average concentration of PDGF-β in PRP was (755.61±418.31) ng/L, which was higher than [(479.93±279.18) ng/L] in normal plasma ( t=3.479, P<0.01). The average concentration of TGF-β1 in PRP was (2267.00±1223.68), which was higher than [(1535.50±910.91) ng/L] in normal plasma ( t=7.082, P<0.01). The average concentration of EGF in PRP was (30.70±12.39) ng/L, which was higher than [(20.77±10.31) ng/L] in normal plasma ( t=6.899, P<0.01). The average concentration of VEGF in PRP was (25.42±17.69) ng/L, which was higher than [(12.01±7.77) ng/L] in normal plasma ( t=5.230, P<0.01). The average concentration of bFGF was (17.85±7.17) ng/L, which was higher than [(10.90±4.73) ng/L] in normal plasma ( t=6.050, P<0.01). The average concentration of IGF-1 was (201.22±36.80) ng/ml, which was higher than [(174.90±33.80) ng/ml] in normal plasma ( t=3.760, P<0.01). Conclusions:Compared to normal plasma, modified PRP contains higher levels of growth factors. The modified method is a reliable option for liquid PRP, especially applicable for invasive cosmetic laser surgery to promote wound repair.