Carcinoma, Hepatocellular ; Humans ; Liver Neoplasms

BACKGROUND: At present, there has been no definite experiment systemically evaluating adherent separation and density gradient centrifugation to isolate bone marrow mesenchymal stem cells (BMSCs). Whether the two methods produce different influences on BMSC induction and differentiation remains unclear.OBJECTIVE: This study was designed to verify difference of these two isolation methods in chondrogenic differentiation of BMSCs.DESIGN, TIME AND SETTING: A controlled observation was performed at the Shengjing Hospital Affiliated to China Medical University from March to September 2005. MATERIALS: Twenty Japanese big-ear rabbits, aged 2-3 months, weighing 1.2-2.0 kg, were included for this study. METHODS: BMSCs were isolated by adherent separation and density gradient centrifugation. Two groups of BMSCs were taken from the same passage and induced towards chondrogenic differentiation with transforming growth factor beta 1. MAIN OUTCOME MEASURES: Growth of BMSCs was observed under an inverted microscope to draw growth curves; Type II collagen expression was detected by immunohistochemistry. Type II collagen mRNA expression was determined by in situ hybridization. RESULTS: The growth curves demonstrated that cellular growth velocity of the two groups tended to be the same. Immunohistochemistry results showed that the efficiency of adherent separation and density gradient centrifugation for promoting chondrogenic differentiation of BMSCs was 76.1% and 77.7%, respectively, and in situ hybridization results showed that the efficiency was 70.3% and 71.0%, respectively. No significant difference in differentiation efficiency existed between the adherent separation and the density gradient centrifugation. CONCLUSION: Adherent separation and density gradient centrifugation had no different influences on BMSC growth and chondrogenic differentiation.

Objective To evaluate the role of Lugol’s s taining in detecting early esophageal cancer.Methods 2% Lugol’s solution was adopted to stain esophageal m ucosa in 111 cases with esophageal superficial lesions. And multiple biopsies we re taken for pathological study.Results Among the 111 cases with Lugol’s staining, the results in normal, light, deep and non-stained were 4, 68,11 and 28 cases respectively . Pathology result: no cases of esophageal cancer or cell dysplasia in normal an d deep stained groups, 3 cases of severe dysplasia and 1 case of canceration in light stained group, 17 cases of esophageal squamous cell carcinoma and 5 cases of severe dysplasia in un-stained group.Conclusion The cancerous and precancerous lesions are liable to occur in cases with non- and light Lugol’s staining groups. The rate of detec ting early esophageal cancer increased when Lugol’s staining and biopsy are use d in combination.

Objective To detect the level of serum melanoma-inbibiting activity (MIA) in patients with uveal melanomas, and investigate the value of MIA in diagnosing and inspecting uveal melanomas. Methods Enzyme-linked immunosorbent assay (ELISA) was used to detect the concentrations of MIA in peripheral serum of 27 patients with uveal melanoma, 6 with melanocyte tumor, 7 with other ocular tumors and 16 healthy individuals, respectively. Results The concentration of MIA in patients with uveal melanoma was significantly higher than that in the healthy ones (16 individuals) and the patients with adenoma of non pigmented ciliary epithelium (4 patients), retinoblastoma (2 patients), and retinal angioma 91 patient). The concnetration of MIA in patients with uveal melanoma without scleral infiltration or remote metastasis was obviously lower than that in the patients with scleral infiltration or remote metastasis, but didn′t differ much from which in the patients with melanocyte tumor. In the patients with uveal melanoma without infiltration or remote metastasis, there was no significant difference of MIA level between patients with spindle cell and mixed and epithelioid cell. Conclusion The level of serum MIA may be an effective index in diagnosing uveal melanoma, which can monitor the metastasis of uveal melanoma.

OBJECTIVE:To investigate the infusion solutions which are compatible with Compound kushen injection. METHODS:The insoluble particles of kushen injection in four kinds of infusion solutions were detected respectively by light blockage method.RESULTS:Insoluble particles of different size and number were noted for Compound kushen injection when mixed respectively with four kinds of infusion solutions,but the insoluble particles in all kinds of infusion solutions except 10% glucose injection were all within the range specified in China Pharmacopeia(2005 edition).CONCLUSION: 0.9% sodium ch-loride injection is the optimal compatible infusion solution for Compound kushen injection.

Objective To discuss morphology and biomechanics of the sacrum fractures so as to provide scientific basis for corresponding clinical treatment. Methods A total of 10 fresh pelvis specimens were collected for dynamic impact test and static destruction test, in the former one of which, the dynamic parameters were measured to make sure the dynamic characters of the fractures. Meanwhile, the fractures of the sacrum wing, the sacral foramina and the sacrum edge were made decalcification, slice of paraffin wax and staining (Masson, Mallory, HE) in order to make a cytological observation of the tissue. Results (1) The form of sacrum fracture or acetabulum fracture, crista iliaceis fracture was relevant to the impact energy. Low impact energy usually caused fractures of the ilium, acetabulum or sacroiliac crest. High impact energy resulted in following three kinds of fractures, just as the classification of Denis: sacral ala fractures belonged to typeⅠfractures, sacral hiatus fractures to type Ⅱ fractures and central vertebral canal fractures to type Ⅲ fractures. All three types of fractures might involve lateral or bilateral nerve roots. (2) There was a significant mechanic difference in regard of the mechanism of both dynamic destruction and static destruction of pelvis, ie, not only the limit pressure differed but also the former increased rapidly with the higher rate of the strain. The clash energy beyond 25 J would beget the cleft fractures of the sacrum via sacrum hiatus and even involve the nerve roots. The clash energy under 20 J usually resulted in fractures of the ilium and the sacrum. The clash energy between 20 J and 25 J more easily caused type Ⅰ fractures. While fracture of the ilium and the acetabulum would happen most in static destruction. (3) The cross section of the sacrum was cracked and the bone board of Haversian system is brittle, as led to separation of bone board and malposition of a few cross bone boards. Conclusions Under dynamic state, the sacrum fractures mostly belong to type Ⅰ and type Ⅱ (Denis classification of sacral fractures), usually involving the nerve roots. The sacrum fracture is relevant to the microstructure, the distribution of the bone trabecula, the osseous lacuna and the Haversian system of the sacrum. The fractures of the ilium and the acetabulum more frquently appear in static state, with slight wound of peripheral tissues.

Stereotactic radiotherapy is a rapidly growing treatment strategy for tumor due to the advances in target definition,radiation dose delivery,and image guidance of radiation.We reviewed the clinical application of stereotactic radiotherapy in the management of early stage non-small cell lung cancer including the technique,the workflow of the technique established,the outcome and relative radiation toxicity.

Objective To observe the TCM syndrome changes of lung cancer patients before and after chemotherapy and the effect of Shengxuetang on dealing with side and toxic effects caused by chemotherapy and patient’s immune function. Method Phase III and IV lung cancer patients were randomly divided into two groups, treatment group and control group. Patients in the treatment group were given the combination of chemotherapy and Shengxuetang, while those in the control group were given the combination of chemotherapy and berbamine. Peripheral WBC count, HGB level, platelet count, T-cell count, and NK cell activity were measured, and other toxic effects were observed before and after chemotherapy. Results Before chemotherapy, there were two syndrome types, one is the deficiency of Qi and Yin, and the other is phlegm-damp due to deficiency of Qi accompanied with blood stasis. During the treatment, these two syndrome gradually transformed to the deficiency of both Qi and Yin and coagulation of phlegm and blood stasis. The chance for patients to develop myelosuppression had no difference between two groups, however, most patients in the treatment group developed grade I myelosuppression, while in the control group, most patients developed grade II myelosuppression. G-CSF was prescribed more in the control group than in the treatment group (P

Aged ; Humans ; Immunoglobulin M ; Liver Failure, Acute ; etiology ; Male ; Multiple Myeloma ; complications ; immunology

OBJECTIVE:To establish an UV-spectrophotometry method for determination of glutaraldehyde in solution METHODS:The concentration of glutaraldehyde in solution was measured at 233nm wavelength which was characteristic absorption peak of glutaraldehyde RESULTS:The calibration curve was linear within the range of 100～1 600?g/ml with r=0 9 998(n=5) The relative standard deviation of the measured results was≤2 13%(n=6) CONCLUSION:The method is simple,rapid and accurate