OBJECTIVE:To study the liver damage mechanism in mice caused by the incompatibility of Daphne genkwa com-bined with Glycyrrhiza uralensis in aspect of liver transporter. METHODS:40 mice were equally randomized into a normal control (isometric normal saline)group,a group of G. uralensis [15 g(medicinal matierias)/kg],a group of D. genkwa [15 g(medicinal tatierias)/kg],a group of D. genkwa with G. uralensis in the ratio of 1∶1 [15 g(crude drug)/kg],a group of D. genkwa with G. uralensis in the ratio of 1∶3 [15 g(medicinal matierias)/kg](n=8). The mice were given the corresponding drug,ig,once a day for 7 consecutive days. HE staining was performed and then the pathomorphology of liver tissues were observed under the light mi-croscope,and calculation was made for pathological grading. Western blot method was employed to determine the protein expre-ssion of the transporter Ntcp protein in the livers of mice. The contents of total bile acids(TBA)in livers of mice were determined. RESULTS:Compared to the mice in the normal control group,those in the group of 1∶1 and 1∶3 demonstrated higher protein ex-pression of Ntcp. In the group of 1∶1,the mice with grade“+++”hepatocyte degeneration were more (8). The mice with grade“+++”and“++”hepatocyte degeneration in the groups of 1∶3 were more (2 and 8 respectively). CONCLUSIONS:D. genkwa combined with G. uralensis can induce liver damage in mice by a mechanism which may be related to the accumulation of a large amount of TBA in the liver as a result of the increase in the expression of Ntcp in mice.

AIM:To investigate molecular regulatory mechanism of K-ras to girdin protein in COS7 cells and expression of K-ras and girdin in colorectal carcinoma tissues .METHODS:The lentiviral vector carrying K-ras gene was constructed and transfected in the COS 7 cells.The expression of K-ras, girdin proteins and other related proteins in COS 7 cells and colorectal carcinoma tissues was observed by Western blot .RESULTS:The COS7 cells with K-ras over-expres-sion showed an irregular cell morphology .The results of Western blot indicated that the downstream signal protein levels of p-ERK1/2, p-Stat3 and girdin were significantly increased in the COS 7 cells with K-ras over-expression.Transfection with the K-ras siRNA into the COS7 cells significantly reduced the protein levels of p-ERK1/2, p-Stat3 and girdin.In the color-ectal carcinoma tissues (7 cases), 5 cases had higher expression of K-ras and girdin compared with pericarcinous tissues . CONCLUSION:K-ras regulates girdin expression through the signal pathway of K-ras-ERK1/2-Stat3-girdin.

Objective To evaluate surgical performance of reconstruction of the cistern magna for the treatment of Chiari Ⅰ malformation associated with syringomyelia.Methods Suboccipital craniotomy and laminectomy of C1 segment were performed.The superior edge of bone window was limited to the inferior nuchal line.The dura mater and arachnoid were opened Y-shaped.The cerebellar tonsils were removed by electrocoagulation or subpially.A communication of cerebrospinal fluid between the fourth ventricle and subarachnoid space was achieved.The pseduomembrane,which is a very thin membrane over the opening of the central canal,should be cut away,with fascia grafting.Then a new enlarged cistern magna was established.Results The procedure was successfully completed in all the 36 patients with Chiari Ⅰ malformation and syringomyelia.The pseduomembrane was found in 30 patients.Postoperative follow-up checkups for 3 months ~ 5 years showed various degrees of recovery of sensation and muscle strength.Re-examinations with MRI revealed that the spinal cord cavity disappeared in 6 patients and decreased in size in 30 patients.Conclusions The decompression of the posterior cranial fossa,the communication of cerebrospinal fluid between the fourth ventricle and subarachnoid space,and the removal of pseduomembrane are key processes for treating Chiari Ⅰ malformation associated with syringomyelia.

BACKGROUND:There are many reports on the clinical effect of total knee arthroplasty in the treatment of advanced rheumatoid arthritis, but the reports on the effect of total knee arthroplasty on the disease activity in patients with rheumatoid arthritis are rare. Therefore, the more clinical evidences are needed for supporting.
OBJECTIVE:To explore the effect of total knee arthroplasty on disease activity in patients with rheumatoid arthritis.
METHODS:109 patients with rheumatoid arthritis were included;48 cases in the replacement group, and received total knee arthroplasty combined with internal medicine medications;the 61 cases in the drug treatment group were treated with simple internal medicine medications. The rheumatoid factor, blood sedimentation rate and C-reactive protein levels of the patients in two groups were measured before treatment, 1 and 2 years after treatment, and the Ishikawa joint function scoring criteria was used to assess the functions.
RESULTS AND CONCLUSION:There were no significant differences in the rheumatoid factor, blood sedimentation rate and C-reactive protein levels between two groups before treatment (P>0.05). At 1 and 2 years after treatment, the indicators in the drug treatment group were higher than those in the replacement group (P<0.05);the indicators in the two groups at 2 years after treatment were significantly lower than those before treatment (P<0.05). The rheumatoid arthritis symptom scores of the affected joints of the patients in two groups were significantly improved, especial y the pain, swel and subjective attitudes, and the replacement group was better than the drug treatment group (P<0.05). The total knee arthroplasty can affect the disease activity of rheumatoid arthritis in short-term, and the effect of total knee arthroplasty is better than simple drug treatment.

10.3969/j.issn.2095-4344.2013.26.024

BACKGROUND:Cervical decompression and fusion internal fixation wil accelerate adjacent segment disc degeneration, and it is not clear whether single segment instaibility can increase the adjacent segment disc degeneration. OBJECTIVE:To study the changes of morphology, proteoglycan and col agen type Ⅱ in the adjacent intervertebral disc of the cervical instability models. METHODS:Sixteen New Zealand white rabbits were divided into two groups randomly, with eight rabbits in the control group and eight rabbits in the model group. The animal cervical instability models were made by destroyed partly annulus fibrosus and absorbed C 5/6 nucleus pulposus through anterior cervical puncture. After 12 weeks, the animal models were tested by X-ray film. Al rabbits were sacrificed and 10 mg nucleus pulposus of the intervertebral discs of C 4/5 cut from sagittal plane were harvested and stored under 0 ℃. The content of proteoglycan in nucleus pulposus was tested with phloroglucinol method. Then, the paraffin sections of intervertebral disc tissues were taken for hematoxylin-eosin staining and SABC immunohistochemical staining. RESULTS AND CONCLUSION:The notochord cells of C4/5 intervertebral discs in the experimental group was decreased, and being replaced by fibroblast-like cells. Round chondrocytes could be seen occasional y and intervertebral discs annulus fibrosus became rough and arranged disorderly, the hyaline degeneration and pigmentation were observed as wel as the fibrochondrocytes, and there was a gap between inner and outer annulus fibrosus. The content of proteoglycan was decreased in the nucleus pulposus, and there was significant difference between two groups. The col agen type Ⅱ in the degenerative disc nucleus pulposus and annulus fibrosus of the experimental group was lower than that of the control group. Cervical instability can lead to adjacent intervertebral disc degeneration with the morphological changes and decreased content of proteoglycan and col agen type Ⅱ.

Objective To evaluate effect of humanized nursing on psychological state of patients with chronic urticaria receiving autohemotherapy. Methods 58 cases with chronic urticaria in our hos-pital were randomly divided into the observation group and the control group with 29 cases in each group, the control group was treated with conventional care, the observation group received conventional care combined with humanized nursing. The anxiety, depression and satisfaction degree were compared for these two groups and the data went through χ2 test and t test. Results The score of self- rating anxiety scale (SAS) and serf-rating depression scale (SDS) of the observation group was significantly lower than that of the control group, the satisfaction rate of the observation group was significantly higher than that of the con-trol group. Conclusions Application of humanized nursing in patients with chronic urticaria receiving autohemotherapy can reduce their anxiety and depression and has pivotal significance on treatment of pa-tients with chronic urticaria.

BACKGROUND:The important reason for failed back surgery syndrome is the postoperative epidural scar adhesions, therefore, exploring the methods of preventing postoperative lumbar epidural scar adhesions has always been a hot research in spine surgery field. OBJECTIVE:To investigate the effect of Shenshu point magnetic stimulation therapy on epidural scar adhesions in rat models of failed back surgery syndrome. METHODS:Sixty Sprague-Dawley rat models of failed back surgery syndrome were successfuly established using the method of laminectomy, and then divided into Shenshu magnetic therapy group and blank control group. Beginning from 1 week after modeling, rats in the Shenshu magnetic therapy group were subjected to bilateral Shenshu magnetic stimulation for 6 weeks, 5 days of treatment per week. Rats in the blank control group were not given any intervention. At 13 weeks after modeling, rats were harvested and the area ratio of epidural scars, range of adhesions and formation of colagen fibers were observed under light microscope. Fibroblasts were counted. Hydroxyproline content and transforming growth factor β1 expression in scar tissue were compared between these two groups.

Objective To observe the biological role and the underlying mechanisms of miR-132 in liver cancer on invasion and metastasis.Methods Real-time quantitative polymerase chain reaction (RT-qPCR) analysis was used to examine the expression of miR-132 in four liver cancer cell lines (MHCC97H,HCCLYH,MHCC97L and SMMC-7721),a normal liver cell line HL-7702,and in liver tumor tissues with or without metastases.The biological effects of miR-132 transfection on human liver can-cer cells were assessed by wound assay,matrigel counting and in vivo experiments in nude mice.Western blotting was used to detect the expression of E-cadherin,α-cadherin,vimentin,fibronectin and ZEB2 in li-ver cancer cells.Immunohistochemistry was used to detect positive expression of ZEB2 in xenograft tumors.Results The expressions of miR-132 were downregulated in the four liver cancer cell lines when compared with the normal liver cell line (P ＜ 0.05),and in the liver cancer tissues with distant metastases when compared with the tissues without metastases (P ＜ 0.05).After transfection,ectopic expressions of miR-132 markedly inhibited cell migration and invasion in liver cancer cells.When compared with the control group,the expressions of E-cadherin and α-cadherin in the miR-132 transfection group were significantly increased,but the expressions of vimentin,fibronectin and ZEB2 were decreased.In addition,the numbers of metastatic lung lesions in nude mice in the miR-132 transfection group was markedly decreased when compared with the control group.The expressions of ZEB2 in the miR-132 transfection group was also significantly decreased when compared with the control group.Conclusions Transfection of miR-132 effectively inhibited invasion and metastasis of liver cancer cells in vitro and in vivo.miR-132 may become a new target for regulation of gene expression in liver cancer.

Objective To compare the curative effect of transcatheter arterial chemoembolization (TACE) combined with microwave ablation (MWA) with that of simple TACE in treating large liver cancers.Methods A computer-based search assisted by manual searching for TACE+MWA vs simple TACE clinical control trials for large liver cancers was conducted.The patient survival,tumor response and complications were enrolled in the scope of analysis.Results A total of 16 papers met the inclusion criteria,which included 1199 patients in total.Meta-analysis indicated that one-,2-and 3-year survival rates of TACE+MWA group were better than those of simple TACE group,and the differences between the two groups were statistically significant (P＜0.01).The complete response (CR) rate and partial response (PR) rate of TACE+MWA group were higher than those of simple TACE group,and the differences between the two groups were statistically significant (P＜0.01).The stable disease (SD) rate and progressive disease (PD) rate of TACE+MWA group were lower than those of simple TACE group,and the differences between the two groups were statistically significant (P＜0.01).Conclusion For the treatment of large liver cancers,TACE +MWA is superior to simple TACE.(J Intervent Radiol,2017,26:225-231)