ABSTRACT
The fate of mesenchymal stem cells (MSCs) is regulated by biological, physical and chemical signals. Developments in biotechnology and materials science promoted the occurrence of bioactive materials which can provide physical and chemical signals for MSCs to regulate their fate. In order to design and synthesize materials that can precisely regulate the fate of MSCs, the relationship between the properties of materials and the fate of mesenchymal stem cells need to be clarified, in which the detection of the fate of mesenchymal stem cells plays an important role. In the past 30 years, a series of detection technologies have been developed to detect the fate of MSCs regulated by bioactive materials, among which high-throughput technology has shown great advantages due to its ability to detect large amounts of data at one time. In this review, the latest research progresses of detecting the fate of MSCs regulated by bone bioactive materials (BBMs) are systematically reviewed from traditional technology to high-throughput technology which is emphasized especially. Moreover, current problems and the future development direction of detection technologies of the MSCs fate regulated by BBMs are prospected. The aim of this review is to provide a detection technical framework for researchers to establish the relationship between the properties of BMMs and the fate of MSCs, so as to help researchers to design and synthesize BBMs better which can precisely regulate the fate of MSCs.
ABSTRACT
Objective To evaluate the dinical value of MCA and UtA Doppler parameters for the predication of fetus hypoxia. Methods407 singleton pregnancies at the third trimester were underwent Color Doppler,of which 67 cases were in high risk group and 340 cases were in control group.UtA-PI、UtA-RI、UtA-S/D、MCA-PI、MCA-RI and MCA-S/D were all measured.The ratio of UtA to MCA was calculated.All parameters were analyzed. ResultsIn high risk group,UtA-PI,UmA-RI and UtA-S/D were all higher than that in control group(all P＜0.01),MCA-PI is lower than that in control group(P＜0.05),and the ratio of UtA to MCA was higher than that in control group(all P＜0.01).By the standards of(UtA/MCA)-PI ≥ 0.72,(UtA/MCA)-RI ≥ 0.81,and(UtA/MCA)-S/D ≥ 0.74,the predication sensitivity of fetus hypoxia was 63.3%,and the specificity was 90.2%. ConclusionThe ratio of UtA to MCA could predict fetus hypoxia.
