Objective To explore the impacts of proprioception, cutaneous sensitivity and strength on dynamic and static postural stability.Methods From June to November, 2020, a total of 164 elderly participated in this study. Independent parameters included proprioception of knee flexion/extension and ankle dorsi/plantar flexion with proprioception measurement; the cutaneous sensitivity of great toe, first and fifth metatarsals, arch, and heel with monofilament; and strength of ankle dorsi/plantar flexion and hip abduction with isokinetic test. The Berg Balance Scale (BBS) and center of pressure (COP)-based postural stability tests were conducted to represent dynamic and static postural stability. Exploratory factor and multivariable linear regression analyses were used to explore the relationship of each generated factor to postural stability outcomes.Results Proprioception was significantly correlated to the score of BBS (r=-0.449, P<0.001) and the root mean square (RMS) of COP in mediolateral direction (r=0.254, P=0.004). Cutaneous sensitivity was significantly correlated to the RMS of COP in the anteroposterior direction (r=0.281, P=0.002). Strength was significantly correlated to the score of BBS (r=0.493, P<0.001).Conclusion Proprioception and strength are related to dynamic postural stability, while proprioception and cutaneous sensitivity are associated with static postural stability.

Chemerin is a cytokine that attracts much attention in the reproductive process. This study aimed to explore the effects of chemerin and its receptor chemokine-like receptor 1 (CMKLR1) on the maintenance of early pregnancy. The expression levels of chemerin and CMKLR1 in the decidua tissues of 20 early normal pregnant women and 20 early spontaneous abortion women were examined by Western blot and real-time polymerase chain reaction analyses. CMKLR1 receptor antagonist (α-NETA) was then intrauterinely injected into normal pregnant mice model to assess its effect on the outcome of pregnancy and the phosphorylation rate of ERK1/2 in decidua tissues.We found that the expression level of chemerin in women who had experienced early spontaneous abortion was lower than in those who had experienced normal early pregnancy (P < 0.01); conversely, CMKLR1 expression was higher in the former than in the latter (P < 0.01). In a pregnant-mouse model, the embryo resorption rate of α-NETA group was higher than that in the negative control group (61.5% vs. 10.8%) (P < 0.001). Compared with the control group, ERK1/2 phosphorylation in decidua tissues decreased in the α-NETA-treated group (P < 0.01). These results suggested that the inhibition of the chemerin/CMKLR1 signaling pathway can lead to the abortion of mouse embryos, and that chemerin/CMKLR1 may play an important role in the maintenance of early pregnancy possibly by regulating ERK1/2 phosphorylation.
Adult ; Animals ; Chemokines ; analysis ; metabolism ; Female ; Humans ; Intercellular Signaling Peptides and Proteins ; analysis ; metabolism ; Mice ; Pregnancy ; metabolism ; Pregnancy Rate ; Pregnancy, Animal ; Receptors, Chemokine ; metabolism ; Receptors, G-Protein-Coupled ; metabolism ; Signal Transduction ; Young Adult

Objective:To predict the microRNAs(miRNAs) related to cardiovascular diseases.Methods: Bioinformatics was used to find all cardiovascular disease related and cardiovascular function related protein-coding genes,and miRNAs were identified that localized the same transcription units as the above genes.Then other cardiovascular disease related miRNAs were identified by an miRNAs set and family analysis and Gene Ontology(GO).Results: Twenty potential cardiovascular disease related miRNAs were predicted from 626 cardiovascular disease related miRNAs,five of which had been confirmed by experiments.Conclusion: This study is of great help for the diagnosis and research of cardiovascular diseases,but the final conclusions need to be confirmed by experiments.