富血小板血浆制备套装的评估研究

目的通过分析富血小板血浆(platelet-rich plasma,PRP)中血小板、白细胞和生长因子的浓度,计算回收率和富集系数,并做相关性分析,探讨PRP制备套装的实用性和稳定性。方法取30例符合纳入标准的自愿者自愿捐赠的外周血各40mL,应用山东威高集团医用高分子制品股份有限公司的PRP制备套装制备PRP各4mL。全自动血液分析仪计数全血和PRP中血小板和白细胞浓度,并计算血小板或白细胞回收率及富集系数;并分别测定男、女自愿者血小板及白细胞浓度。ELISA法定量分析激活后全血及PRP中PDGF、TGF-β、VEGF的浓度。结果全血和PRP中血小板浓度分别为(131.40±29.44)×109/L和(819.47±136.32)×109/L,比较差异有统计学意义(t=—27.020,P=0.000);PRP中血小板回收率为60.85%±8.97%,富集系数为6.40±1.06。全血和PRP中白细胞浓度分别为(5.57±1.91)×1012/L和(32.20±10.42)×1012/L,比较差异有统计学意义(t=—13.780,P=0.000);PRP中白细胞回收率为58.30%±19.24%,富集系数为6.10±1.93。PRP中血小板浓度和白细胞浓度分别与全血中血小板浓度(r=0.652,P=0.000)和白细胞浓度(r=0.460,P=0.011)成正相关。男性组和女性组PRP中血小板浓度和白细胞浓度比较差异均无统计学意义(P>0.05)。PRP中PDGF、TGF-β、VEGF浓度分别为(698.15±64.48)、(681.36±65.90)、(1071.55±106.04)ng/mL,是全血的(5.67±1.18)、(6.99±0.61)、(5.74±0.83)倍。PRP中PDGF浓度(r=0.832,P=0.020)、TGF-β浓度(r=0.835,P=0.019)、VEGF浓度(r=0.824,P=0.023)均与PRP中血小板浓度成正相关。结论 PRP制备套装可以稳定地制备出富含高浓度血小板、白细胞和生长因子的PRP。

ASSESSMENT STUDY ON A SET OF PLATELET-RICH PLASMA PREPARATION

Objective To calculate the recovery rate and enrichment factor and to analyse the correlation by measuring the concentrations of platelets,leukocyte,and growth factors in platelet-rich plasma(PRP) so as to evaluate the feasibility and stability of a set of PRP preparation.Methods The peripheral blood(40 mL) was collected from 30 volunteers accorded with the inclusion criteria,and then 4 mL PRP was prepared using the package produced by Shandong Weigao Group Medical Polymer Company Limited.Automatic hematolo...