Effects of aspirin on fracture healing in OPF rats

OBJECTIVES@#To study the effect of aspirin on healing process of osteoporotic fracture (OPF) in rats.@*METHODS@#A total of 50 female Wistar rats aged 3 months were randomly divided into observation group and control group, castration method was adopted to establish the osteoporosis (OP) model. After artificial preparing fractures on the midpoint of left femur, fixing gram needle intramedullary, OPF modeling was complete. Aspirin lavage of 33 mg once a day was adopted in observation group after modeling, same amount of normal saline was used in the control as placebo. From each group, selected 5 rats at the 2nd, 4th, 8th and 12th week after modeling to measure the bone mineral density (BMD) and histological examination of the fracture callus, radiology observation was conducted at the 8th and 12th week. Left femur biomechanical measurement was taken at the 12th week.@*RESULTS@#BMD values of observation group at each time point were significantly higher than that of the control group after modeling (P<0.05); Histological observation showed that at the 8th week, the endochondral ossification process of observation group was faster than that of observation group, with fuzzy fracture line in observation group and clear fracture line in observation group; at the 12th week, fracture line disappeared in observation group, fracture line of the control group was fuzzy at the same time; three-point bending load of the left femur in observation group rats was significantly higher than that of control group after 12 weeks (P<0.05).@*CONCLUSIONS@#Aspirin can accelerate the healing of new callus in OPF rats, increase bone density and biomechanics strength, and promote fracture healing of osteoporotic rats.

Electrophysiological study on differentiation of rat bone marrow stromal stem cells into neuron-like cells in vitro by edaravone / 中华创伤杂志(英文版)

<p><b>OBJECTIVE</b>To explore the electrophysiological properties of differentiation of rat bone marrow-derived stromal stem cells (rBMSCs) to neuron-like cells in vitro by edaravone, a new type of free radical scavenger.</p><p><b>METHODS</b>Stromal stem cells were separated from rat bone marrow with Ficoll-Paque reagent and expanded in different culture medium in vitro. rBMSCs were induced by edaravone containing serum-free L-DMEM. Morphologic observation and Western blot analysis including the expression of Nav1.6, Kv1.2, Kv1.3, Cav1.2 were performed, and whole patch-clamp technique was used.</p><p><b>RESULTS</b>Cyton contraction and long processes were shown in differentiated stromal stem cells. Nav1.6, Kv1.2, Kv1.3 and Cav1.2 were expressed in both differentiated and undifferentiated cells. However, the expression of channel proteins in differentiated cells was up-regulated. Consistently, their resting potential and outward currents were also enhanced in the differentiated cells, which was especially significant in the outward rectifier potassium current.</p><p><b>CONCLUSION</b>In vitro, neuron-like cells derived from rBMSCs, induced by edaravone, possess electrophysiological properties of neurons.</p>

Effect of Shenqi Fuzheng injection combined with chemotherapy on thirty patients with advanced breast cancer / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To observe the clinical efficacy of Shenqi Fuzheng Injection (SFI) combined with chemotherapy in treating patients with advanced breast cancer.</p><p><b>METHODS</b>Sixty patients were randomly assigned to two groups by digital table, the control group and the treatment group, 30 in each group. All patients were treated with the same CTF regimen of chemotherapy for 21 days as one therapeutic cycle, while those in the treatment group were given SFI additionally in the meanwhite. The therapeutic efficacy was evaluated after 2 cycles of treatment by observing the changes of short-term efficacy, TCM syndrome, quality of life and immune function, as well as the adverse reaction.</p><p><b>RESULTS</b>The total short-term remission rate, the improvement rate of clinical syndrome and quality of life was 50.0%, 70.0% and 76.7% in the treatment group, and 43.3%, 46.7% and 50.0% in the control group, respectively, showing significant difference between the two groups (all P < 0.05). The occurrence of adverse reaction in the treatment group was lower than that in the control group (P < 0.05). The level of CD3+ CD4+ and CD4+/CD8+ ratio increased (P < 0.05) and CD8+ decreased in the treatment group (P < 0.01), while they showed insignificant change in the control group.</p><p><b>CONCLUSION</b>For treatment of advanced breast cancer, SFI can alleviate the bone marrow inhibition caused by chemotherapy, improve clinical symptoms and quality of life and prolong the survival period by regulating cellular immune function of patients, so as to enhance the therapeutic effect of chemotherapy.</p>