Objective To compare the clinical effects between electrical stimulation and acupuncture for dysphagia in acute stroke,and provide effective option for the patients with post-stroke bulbar palsy.Methods A total of 80 patients (40 post-stroke true bulbar paralysis patients and 40 post-stroke pseudo bulbar paralysis patients)were randomly divided into true bulbar paralysis-electrical stimulation group(group A1),true bulbar paralysis-acupuncture group(group A2),pseudo bulbar paralysis-electrical stim-ulation group(group B1),pseudo bulbar paralysis-acupuncture group(group B2).These patients were treated with electrical stimu-lation or acupuncture combined with rehabilitation training for 2 weeks.Results In group A1,4 cases were better effective,12 cases were effective,and 4 cases were no effective.In group A2,2 cases were better effective,7 cases were effective,and 1 1 cases were no effective.The response rate was 80%(1 6/20)in group A1 and 45%(9/20)in group A2.There was statistically significant difference (P =0.022).In group B1,6 cases were better effective,12 cases were effective,and 2 cases were no effective.In group B2,5 cases were better effective,12 cases were effective,and 3 cases were no effective.The response rate was 90%(18/20)in group B1 and 85%(1 7/20)in group B2.There was no statistically significant difference(P =0.633 ).Conclusion Electrical stimulation or acu-puncture combined with early rehabilitation training could provide good effect for post-stroke pseudo bulbar paralysis patients.For post-stroke true bulbar paralysis patients,it was better to choose electrical stimulation combined with early rehabilitation training.

Objective To disclose the influence of PTEN on the migration of breast cancer cells ZR-75-1. Methods Wild-type PTEN gene was transtected into ZR-75-1 breast cancer cells which lack PTEN gene, tranfected cells were selected by puromycin and the protein encoded by PTEN gene was tested by Western-blot. The inhibition rate of invasion and adhesion of ZR-75-1 was tested on reconstituted basement membrane. Results Wild-type PTEN gene was successfully transfected into ZR-75-1 and expressed efficiently. The inhibition rate of invasion and adhesion is 70.4 % and 60.0 % respectively. Conclusion PTEN gene can restrict the migration of breast cancer cells in some degree, so whether PTEN gene is deleted or not can partly estimates the risk of migration of breast cancer cells.

Objective: The present study aimed to isolate and characterize a cancer stem cell-like sphere-forming cell subpopula-tion. Methods: By using a spheroid culture stem cell-conditioned medium, we isolated a subgroup of cancer stem-like cells from naso-pharyngeal cancer cell lines. Chemotherapy resistance was analyzed by using methyl thiazolyl tetrazolium, and clone-forming capabili-ty was determined by using softer agar clone formation assay. Finally, we verified the expression of the stemness-specific gene andβ-catenin by using immunocytochemistry staining and RT-PCR. Results: The lower-differentiated nasopharyngeal cancer lines con-tained more sphere-forming cells, whereas sphere-forming cells were not observed in the high differentiated nasopharyngeal cancer line CNE-1. Compared with CNE-2, CNE-2S (sphere-forming cells derived from CNE-2) exhibited higher chemotherapy resistance and clone-forming ability. Interestingly, the stemness genes BMI-1, ABCG2, and ALDH1 exhibited higher expression in CNE-2S than in CNE-2. β-catenin, a vital transcription factor of the WNT pathway related to stem cells, exhibited higher expression in CNE-2s cellular nucleus and plasma than in CNE-2. Conclusion: We isolated a subgroup of stem-like nasopharyngeal cancer sphere-forming cells. This discovery paves the way for the development of therapeutic strategies aimed at eradicating tumorigenic subpopulations in nasopharyn-geal cancer.

OBJECTIVE:To optimize the extraction technology for organic acids in Crataegi fructus. METHODS:Based on sin-gle factor test,using liquid-solid ratio,extraction time and ethanol volume fraction as independent variables,extraction yield of or-ganic acids as dependent variable,central composite design-response surface method was used to optimize the extraction technology of organic acids in Crataegi fructus. RESULTS:The optimal extraction technology was as follow as liquid-solid ratio of 18.5:1, adding 75% ethanol,reflux extraction twice,2.0 h each time. Average extraction yield of organic acids in verification test was 5.22%(RSD=2.70%,n=3),with 1.75% relative error of the predicted value(5.13%). CONCLUSIONS:Optimized extraction technology for organic acids in Crataegi fructus is simple,with good reproducibility and predictability.

OBJECTIVE: To study the inhibitory effect of Arsenic Trioxide (As2O3) combined with diamminedichloroplatinum (DDP) on the growth of human nasopharyngeal carcinoma cell strain CNE-2Z xenograft in nude mice, and to explore the possible effect mechanisms of the antitumor. METHOD: The models of human poorly differentiated nasopharyngeal carcinoma in nude mice were established and randomly divided into four groups, control group, As2O3 group, DDP group and As2O3 + DDP group. The effect of antitumor on each group was studied. The specimen obtained from the mice were detected by optical microscope and tdt-mediated dutp rock end labeling (tunel) method. Expression of DAPK was detected by real time-PCR and immunohistochemistry. RESULT: As2O3 group and AS2O3 + DDP group could obviously inhibit the growth of tumor, induce the apoptosis of human naso pharyngeal carcinoma cell and up-regulate the expression of RASSF1A. CONCLUSION As2O3 can greatly inhibit the growth of human nasopharyngeal carcinoma cell strain CNE-2Z xenograft in nude mice, which were related to the induced apoptosis of human nasopharyngeal carcinoma cell and up-regulated expression of DAPK Combination of As2O3 with DDP seem to be more effective.
Animals ; Apoptosis ; drug effects ; Arsenic Trioxide ; Arsenicals ; administration & dosage ; pharmacology ; Carcinoma ; Cell Line, Tumor ; Cisplatin ; administration & dosage ; pharmacology ; Death-Associated Protein Kinases ; metabolism ; Gene Expression Regulation, Neoplastic ; Humans ; Mice ; Mice, Nude ; Nasopharyngeal Carcinoma ; Nasopharyngeal Neoplasms ; metabolism ; pathology ; Oxides ; administration & dosage ; pharmacology ; Xenograft Model Antitumor Assays

Objective:To analyze the incidence and epidemiological characteristics of traumatic spinal cord injury in China in 2018.Methods:Multi-stage stratified cluster sampling was used to randomly select hospitals capable of treating patients with spinal cord injury from 3 regions，9 provinces and 27 cities in China to retrospectively investigate eligible patients with traumatic spinal cord injury admitted in 2018. National and regional incidence rates were calculated. The data of cause of injury，injury level，severity of injury，segment and type of fracture，complications，death and other data were collected by medical record questionnaire，and analyzed according to geographical region，age and gender.Results:Medical records of 4，134 patients were included in this study，with a male-to-female ratio of 2.99∶1. The incidence of traumatic spinal cord injury in China in 2018 was 50.484 / 1 million （95% CI 50.122-50.846）. The highest incidence in the Eastern region was 53.791 / 1 million （95% CI 53.217-54.365）. In the whole country，the main causes of injury were high falls （29.58%），as well as in the Western region （40.68%），while the main causes of injury in the Eastern and Central regions were traffic injuries （31.22%，30.10%）. The main injury level was cervical spinal cord in the whole country （64.49%），and the proportion of cervical spinal cord injury in the Central region was the highest （74.68%），and the proportion of lumbosacral spinal cord injury in the Western region was the highest （32.30%）. The highest proportion of degree of injury was incomplete quadriplegia （55.20%），and the distribution pattern was the same in each region. A total of 65.87% of the patients were complicated with fracture or dislocation，77.95% in the Western region and only 54.77% in the Central region. In the whole country，the head was the main combined injury （37.87%），as well as in the Eastern and Central regions，while the proportion of chest combined injury in the Western region was the highest （38.57%）. A total of 32.90% of the patients were complicated with respiratory complications. There were 23 patients （0.56%） died in hospital，of which 17（73.91%） died of respiratory dysfunction. Conclusions:The Eastern region of China has a high incidence of traumatic spinal cord injury. Other epidemiological features include high fall as the main cause of injury cervical spinal cord injury as the main injury level，incomplete quadriplegia as the main degree of injury，head as the main combined injury，and respiratory complications as the main complication.