Platycodin-D (PD) is the major monomer of triterpene saponins in the root of Platycodon grandiflorum. Recent studies have demonstrated that PD has a wide range of anti-tumor effect and its efficacy is satisfying. This article reviewed anti-tumor mechanisms of PD from the aspects of proliferation, apoptosis, invasion and metastasis, immune and anti-inflammation, etc., with a purpose to provide a theoretical basis and reference for the further development and better utilization of PD and taking its anti-tumor advantage.

Aim To explore the effects of the inhibition of cell adhesion , invasion and migration in non-small cell lung cancer ( NSCLC ) H460 and A549 cells in-duced by platycodin-D ( PD ) and its mechanism. Methods Cell adhesion assay, wound-healing assay and Transwell chamber migration assay were used to detect the ability of cell adhesion, migration and inva-sion. Regulation of MMP-2 and MMP-9 mRNA was de-termined by RT-PCR. Meanwhile, Western blot was performed to determine the expression levels of MMP-2/9 , its upstream related proteins of ERK signaling pathway and p-Akt. Results PD effectively inhibited the ability of cell adhesion, invasion and migration in H460 and A549 cells in a dose-dependent manner ( P<0. 05 ) . PD reduced the expression of MMP-2 and MMP-9 mRNA in H460 and A549 cells ( P<0. 01 );meanwhile, PD down-regulated the expression levels of MMP-2/9 , and inhibited the expression of its upstream proteins Ras, p-c-Raf, p-ERK 1/2 and p-Akt in a time- and dose-dependent manner. Conclusions PD inhibits cell adhesion, invasion and migration in NSCLC cells, and these effects are related to the down-regulation of the expression of MMP-2 and MMP-9 mR-NA and protein, and inhibition of its upstream expres-sion of ERK signaling pathway and p-Akt.

Aim To explore the inhibitory effects of ophiopogonin-B (OP-B ) on cell adhesion,invasion and migration in non-small cell lung cancer (NSCLC) A549 cells in vitro and its possible mechanism.Meth-ods Cell adhesion assay and transwell chamber assay were used to detect the ability of cell adhesion,migra-tion and invasion.qRT-PCR was used to detect the mRNA levels of MMP-2 and 9 .Meanwhile ,Western blot assay was performed to determine the protein levels of MMP-2/9 and p-Akt.Results OP-B significantly inhibited the ability of cell adhesion,invasion and mi-gration in A549 cells at the concentration of 10 μmol· L-1 (P<0.01 ).Meanwhile,it inhibited the mRNA and protein levels of MMP-2 and MMP-9 and down-regulated the phosphorylation of Akt (P <0.0 1 ). Conclusion OP-B inhibits cell adhesion,invasion and migration in A549 cells through down-regulation of the mRNA and protein expression of MMP-2/9 ,and the inhibitory effect on the expression of p-Akt.

Objective To observethe clinical efficacy of comprehensive acupuncture treatment in treating primary open-angle glaucoma, and to objectively evaluate the therapeutic efficacy.Method Twenty-eight patients (53 eyes) who received acupuncture treatment were recruited. By adopting a self-control design, the changes of intraocular tension, mean defect (MD) of vision field, mean sensitivity (MS), vision, and score of Quality of Life Scale for Patients with Visual Impairment (QLSPVI) were observed after 3-month acupuncture treatment.ResultThe intraocular tension of the 28 patients declined obviously after the treatment (P<0.01); MD, MS and vision didn't show significant improvements after the treatment (P>0.05); the QLSPVI score dropped significantly after the treatment (P<0.01);the total effective rate was 86.8%; the therapeutic efficacy wasn't correlated with age, disease duration, and treatment duration (P>0.05).Conclusion Acupuncture treatment can effectively reduce the intraocular tension, control the deterioration of MD and MS, maintain the level of vision, and enhance the quality of life of patients with primary open-angle glaucoma; with the same disease duration, the longer the treatment, the better the therapeutic efficacy.

Objective:To investigate the diagnostic value of endoscopic ultrasonography (EUS) in pancreatic duct stones.Methods:The clinicopathologic data of 204 patients undergoing EUS for symptoms such as abdominal pain, abdominal distension and jaundice suspected of pancreatic duct stones, who were admitted to the General Hospital of Western Theater Command from January 2019 to April 2023 were retrospectively analyzed. Of 159 patients were finally enrolled, including 47 females and 112 males, aged (51.8±13.9) years. Surgery or endoscopic retrograde cholangiopancreatography (ERCP) is considered the " gold standard" for the diagnosis of pancreatic duct stones. Of 38 patients (23.9%) had abdominal ultrasound, 143 (89.9%) had CT scan and 93 (58.5%) had magnetic resonance cholangiopancreatography (MRCP) at the same time. The diagnostic accuracy of imaging examinations in pancreatic duct stones was compared.Results:In 159 patients, 61 (38.4%) were diagnosed of pancreatic duct stones. In the 159 patients, 61 (38.4%) were diagnosed of pancreatic duct stones by EUS. The diagnostic sensitivity, specificity, positive predictive value, negative predictive value, Youden index and accuracy of EUS for pancreatic duct stones were 98.4%, 99.0%, 98.4%, 99.0%, 97.3% and 98.7%, respectively. The accuracy of EUS in diagnosing pancreatic duct stones was higher than that of percutaneous ultrasound, CT and MRCP (χ 2=7.71, 13.76, and 5.70, P=0.012, <0.001, 0.033). The diagnostic accuracy of EUS is comparable with operation and ERCP (Kappa=0.854, P<0.001). Conclusion:EUS could be a superior imaging approach to diagnose the pancreatic duct stone.

The experimental teaching of psychology is not only an important course in the undergraduate and graduate education of applied psychology, but also can assist the practical teaching of quite a few other subjects. It clearly divides three basic functions of experimental psychology teaching center: teaching, scientific research and service, which play an important role in facilitating teachers and students to understand corresponding courses. At the same time, it is discussed and proposed to strengthen the internal and external scientific linkage of the experimental center under the network background, and put forward the use of Internet technology, in order to improve the scientific use of the experimental teaching center, and reflect its maximum value, thereby achieving the purpose of university laboratory joint construction and serve the university to cultivate innovative and compound personnels.

Since 2020, the Chinese Society of Gastroenterology, the Japanese Society of Gastroenterology and the American College of Gastroenterology have updated consensus or guidelines for gastroesophageal reflux disease (GERD). This article reviewed and compared the above ⁃ mentioned files in terms of definition, symptoms, diagnosis, treatment, management of refractory GERD, and adverse effects of long⁃term proton pump inhibitor (PPI) treatment, so as to provide references for the standardized diagnosis and treatment of GERD.

Spinal cord injury (SCI) is a serious nervous system disease that usually leads to the impairment of the motor, sensory, and autonomic nervous functions of the spinal cord, and it places a heavy burden on families and healthcare systems every year. Due to the complex pathophysiological mechanism of SCI and the poor ability of neurons to regenerate, the current treatment scheme has very limited effects on the recovery of spinal cord function. In addition, due to their unique advantages, exosomes can be used as carriers for cargo transport. In recent years, some studies have confirmed that treatment with mesenchymal stem cells (MSCs) can promote the recovery of SCI nerve function. The therapeutic effect of MSCs is mainly related to exosomes secreted by MSCs, and exosomes may have great potential in SCI therapy. In this review, we summarized the repair mechanism of mesenchymal stem cells-derived exosomes (MSCs-Exos) in SCI treatment and discussed the microRNAs related to SCI treatment based on MSCs-Exos and their mechanism of action, which is helpful to further understand the role of exosomes in SCI.

Spinal cord injury (SCI) is a serious nervous system disease that usually leads to the impairment of the motor, sensory, and autonomic nervous functions of the spinal cord, and it places a heavy burden on families and healthcare systems every year. Due to the complex pathophysiological mechanism of SCI and the poor ability of neurons to regenerate, the current treatment scheme has very limited effects on the recovery of spinal cord function. In addition, due to their unique advantages, exosomes can be used as carriers for cargo transport. In recent years, some studies have confirmed that treatment with mesenchymal stem cells (MSCs) can promote the recovery of SCI nerve function. The therapeutic effect of MSCs is mainly related to exosomes secreted by MSCs, and exosomes may have great potential in SCI therapy. In this review, we summarized the repair mechanism of mesenchymal stem cells-derived exosomes (MSCs-Exos) in SCI treatment and discussed the microRNAs related to SCI treatment based on MSCs-Exos and their mechanism of action, which is helpful to further understand the role of exosomes in SCI.

Spinal cord injury (SCI) is a serious nervous system disease that usually leads to the impairment of the motor, sensory, and autonomic nervous functions of the spinal cord, and it places a heavy burden on families and healthcare systems every year. Due to the complex pathophysiological mechanism of SCI and the poor ability of neurons to regenerate, the current treatment scheme has very limited effects on the recovery of spinal cord function. In addition, due to their unique advantages, exosomes can be used as carriers for cargo transport. In recent years, some studies have confirmed that treatment with mesenchymal stem cells (MSCs) can promote the recovery of SCI nerve function. The therapeutic effect of MSCs is mainly related to exosomes secreted by MSCs, and exosomes may have great potential in SCI therapy. In this review, we summarized the repair mechanism of mesenchymal stem cells-derived exosomes (MSCs-Exos) in SCI treatment and discussed the microRNAs related to SCI treatment based on MSCs-Exos and their mechanism of action, which is helpful to further understand the role of exosomes in SCI.