Objective Observing the process of cell aggregation and differentiating into myocardium after the P19 cells treated with different methods and dimethyl sulfoxide(DMSO) inducer.Methods P19 cells were cultivated with DMSO in suspension for 7 days in Petri dishes or dishes containing a thin layer of soft agar to form cell aggregation.Then the aggregates were plated on gelatin-coated culture dishes,and cultured without DMSO to 19 days.The beating of cells was observed.?-sarcomeric actin and cardiac Troponin T(cTnT) immunocytochemical stains were used to identify cell differentiation.Results Cell aggregations were cohering-cultured with growth culture medium after DMSO induced for 7days,spontaneous and rhythmically beating cells were present within the aggregation outgrowths at day 15,which were ?-sarcomeric actin-positive and cTnT-positive.By day 19,positive rates were about 26% and 15% respectively.Conclusion By using DMSO exposure combination prior aggregation can induce P19 cells differentiate into cardiac myocytes which can spontaneously and rhythmically beat.

Thyroid cancer is the most common malignant endocrine tumor.The xenograft nude mice model of thyroid cancer have played an important role in studying thyroid cancer.Different mouse model has distinctive characters and limitations,so it is important to choose a suitable mice model due to the experiment purpose.In this paper,the authors will address the research progress of human thyroid cancer xenograft nude models.

Objective To study the imaging features of cervical lymphnode enlargement so as to improve the diagnosis of cervical lymph node disease.Methods CT and MRI appearances of 66 patients with pathologically-proved cervical lymph nodes disease were comparatively analyzed.Results There were significant difference in distribution of the multiple metastatic lymph node and lymph node tuberculosis(P=0.006).The ring-shaped enhancement were found in 20 cases with metastatic lymph nodes,19 of which were shown as thin-wall enhancement,its rate was 95%, and 5 ring-shaped enhancement of lymph node tuberculosis were shown as thick-wall enhancement.The former of which was significant difference than that of the latter(P=0.000).Of all central necrosis,it was significant difference between the metastatic lymph nodes(78%) and lymphoma(36%)(P=0.018).Conclusion According to the imaging features of cervical lymph nodes enlargement,their location and distribution,all of them may be diagnosed correctly.

Objective To study the effect of gamma globulin on serum immune index in neonates with neonatal pneumonia. Methods One hundred neonates with neonatal pneumonia were selected, and they were divided into control group and observation group by random digits table method with 50 cases each. The control group was treated with conventional treatment, and the observation group was treated with conventional treatment combined with gamma globulin. The treatment efficacy, various signs disappearing times, length of stay in hospital and immune indexes were compared between 2 groups.Results The total effective rate in observation group was significantly higher than that in control group:96.00% (48/50) vs. 72.00% (36/50), and there was statistical difference (χ2 = 10.71, P<0.01). The disappearing times of cough, crackles, perioral cyanosis and fever and the length of stay in hospital in observation group were significantly shorter than those in control group:(4.39 ± 1.46) d vs. (6.32 ± 1.61) d, (4.21 ± 0.93) d vs. (5.36 ± 1.08) d, (0.83 ± 0.15) d vs. (1.16 ± 0.22) d, (2.53 ± 1.04) d vs. (4.47 ± 1.13) d and (7.68 ± 0.87) d vs. (10.03 ± 1.18) d, and there were statistical differences (P<0.01). The IgG, IgA, IgM, CD4+and CD4+/CD8+levels after treatment in observation group were significantly higher than those in control group: (10.32 ± 2.86) g/L vs. (6.88 ± 0.83) g/L, (1.14 ± 0.13) g/L vs. (0.91 ± 0.25) g/L, (0.94 ± 0.21) g/L vs. (0.85 ± 0.27) g/L, 0.516 ± 0.068 vs. 0.385 ± 0.063 and 1.89 ± 0.35 vs. 1.57 ± 0.33, but the CD8+was significantly lower than that in control group:0.303 ± 0.046 vs. 0.349 ± 0.048, and there were statistical differences (P<0.05). Conclusions The gamma globulin can not only significantly improve the curative effect in neonates with neonatal pneumonia and promote the recovery of the clinical symptoms, but also improve the efficiency of cell immunity and humoral immunity ability. It is a kind of effective treatment.

Adolescent ; Humans ; Male ; Tooth Ankylosis ; etiology ; surgery ; Tooth Extraction ; methods ; Tooth Root ; Wounds and Injuries ; complications

Acupuncture Therapy ; instrumentation ; Adult ; Female ; Humans ; Male ; Middle Aged ; Muscle Strength ; Piriformis Muscle Syndrome ; physiopathology ; therapy

AIM: To explore mitochondrial mechanisms of apoptosis induced by artesunate in human leukemia HL60 cells. METHODS: Human leukemia HL60 cell lines were treated by artesunate. The inhibitory effect on cell proliferation was assessed by MTT assay. Electron microscopy and DNA gel electrophoresis was applied to demonstrate the presence of apoptosis. The level of MMP, cell cycle were determined by flow cytometry (FCM). The activity of caspase 3 was observed by colorimetry. RESULTS: Art showed a dose dependent and time dependent manner on the growth of HL60 cells (P

Objective To observe the clinical efficacy of hydroxyfasudil in senile heart failure caused by coronary heart disease (CHD). Methods 110 Patients with heart failure caused by CHD were randomly divided into two groups. 55 patients in control group were given conventional treatment, whereas the remaining patients were assigned into hydroxyfasudil group in the base of conventional treatment. After 6 months, we observed and compared the changes in cardiac function of the two groups. Results The effective rate of treatment group was 96.36% and the control group was 85.45%. There was statistical difference between the two groups (P < 0.05). Then we compared the degree of improvement of left ventricular diastolic function using ultrasonic cardiogram and Tei index. Left ventricular ejection fraction of treatment group improved significantly but biochemical indicators of two groups had no statistical difference. Conclusion In patients with heart failure caused by CHD, supplementation of hydroxyfasudil based on conventional therapy could improve diastolic function , potentiate left ventricular remodeling and enhance the life quality. Furthermore, it′s more sensitivity and reasonable to assess cardiac function using Tei index as compared with using ultrasonic cardiogram.

Objective To study the treatment of bladder neck obstruction. Methods Thirty nine cases of bladder neck obstruction were reviewed from 1990 to 1999. There were 25 males and 14 females. 39 cases were treated with Transurethral resection of the bladder neck. Results Symptoms were disappeared in 37 cases. Conclusions Transurethral resection is effective for bladder neck obstruction.

Hepatic fibrosis is the most important pathologic course for chronic hepatic injury developing into hepatic cirrhosis. It is meaningful for treating liver disease by inhibiting the development of hepatic fibrosis. Recently, herbs of promoting blood circulation for removing blood stasis has their unique characteristics and exhibits great therapeutic effect on hepatic fibrosis. The review explains the function and mechanism of the promoting blood circulation for removing blood stasis herbs in treating hepatic fibrosis from the aspects of the monomer, effective constituent and compound recipe. It provides basis for application of promoting blood circulation for removing blood stasis herbs in study and treating hepatic fibrosis.