Objective Cavernous hemangioma of infant was reported as an obscure diagnosis with the different sensitivity to corticosteroid therapy and various natural courses. Therefore, a clinical studies for the biological classification of deep subcutanious vascular lesions might be needed, which was alluded by Mulliken two decades ago. Methods Infants with cavernous hemangiomas accepted normal system corticosteroid therapy during the first 6 months of life before eight-year-follow-up, which continued until the children were 9 to 10 years old. The expression of PCNA and bFGF, and cellular histological characteristics were observed in 12 cases by biopsy. Results There were two major categories of subcutaneous vascular lesions groups: deep capillary hemangiomas, a lesion regressing slowly, and venous malformation, a lesion growing commensurated with the child. They will be also distinguished on the basis of diverse final treatment results, expression of cellular markers, microscopical characteristics, and physical signs. Conclusion The new classification appears to be helpful to make the choice of therapy for infants with "cavernous hemangiomas" , which is proven to be a terminologic confusion.

Objective To assess the clinical manifestation, management and outcome of abdominal aortic aneurysm (AAA) in young adult Methods Retrospective study was made on young AAA patients (

Objective To investigate the effects of up?regulated miR?206/miR?1 on the proliferation of breast cancer stem cells and the effect mech?anism. Methods Breast cancer stem cells(BCSCs)were isolated from breast cancer cell line MCF?7 by fluorescence?activated cell sorting. Cells in the experiment were divided into the blank control group,the negative control group,the miR?206 group and the miR?1 group. The BCSCs were transfected by negative control mimic,hsa?miR?206mimic and hsa?miR?1mimic in all groups except the blank control group. MiR?206and miR?1 expression levels as well as the transcription factor EVI?1 gene were detected by real time PCR. The expression levels of the transcription factor EVI?1 protein were detected by Western blot. MTT method was used to detect the effects of miR?206 and miR?1 on the proliferation of BCSCs. Results The BCSCs(CD44+/CD24-/low cells)isolated from MCF?7 cell lines were successfully cultured in serum?free medium for subsequent studies. After transfection of hsa?miR?206mimic and hsa?miR?1mimic for 48 hours,miR?206and miR?1relative expression levels increased. EVI?1mRNA ex?pression levels significantly decreased. The results of Western blot and MTT showed that up?regulated expression levels of miR?206 and miR?1 could significantly reduce the expression of EVI?1 protein and inhibited the proliferation of BCSCs. The differences in levels of miR?206,miR?1 and EVI?1 protein were statistically significant(P<0.05). Conclusion Up?regulated miR?206 and miR?1 expression can inhibit the proliferation ability of BCSCs,which may be related to the down?regulation of EVI?1.

Objective To observe the Interference effects of siRNA( small interference RNA) intrathecal injection on the expression of mRNA and protein of MrgC, on PWTs ( paw withdrawal thresholds) and the phosphorylation of PKCεSer729 in ipsilateral DRG( dorsal root ganglion) of rats with chronic inflammatory pain induced by CFA( complete freund’ s adjuvant).Methods 16 health adult male SD (Sprague-Dawley) rats were randomly divided into 2 groups: control siRNA group and MrgC siRNA group, 8 rats in each group.After success of intrathecal catheterization, corresponding siRNA was injected in rats for 4d, once a day, 5μg/d per rat.The model of chronic inflammatory pain was established by CFA (0.1ml per rat) subcutaneously injected into the right hind paw at 4th day post-administration, then two groups were administrated corresponding siRNA on alternate day and executed at the 11th day post-administration.The PWTs were measured at 5 time points of pre-intrathecal catheterization, pre-administration, 4th day post-administration(0h post-CFA injection), 5th day post-administration(24h post-CFA injection), 11th day post-administration(7 d post-CFA injection). The expression of MrgC mRNA in ipsilateral DRG was detected by fluorogenic quantitative PCR, and the expression of MrgC and the phosphorylation of PKCε Ser729 in ipsilateral DRG was detected by immumofluorescence method.Result Compared with 4th day post-administration, PWTs of both two groups at 5th day post-administration decreased significantly ( P<0.01 ) .While there was no significant difference of PWTs between two groups at every detective time point. Compared with control siRNA group, the expression of MrgC mRNA and the rate of MrgC positive cells in MrgC siRNA group both decreased significantly ( P<0.01,P <0.05), whereas the rate of p-PKCε Ser729 positive cells increased obviously ( P<0.05) at 11th day post-administration.Conclusion MrgC siRNA can effectively interfere the expression of mRNA and protein of MrgC in L4-L6 ipsilateral DRGs of rats with chronic inflammatory pain induced by CFA, and the siRNA interference on MrgC can obviously up-regulate the phosphorylation of PKCε Ser729, while it has no significant effect on PWTs of rats.

Objective:To build the model of the gene FKBP38 (FK506 binding protein 38) conditional knock out in liver.Methods:Transgenic mouse whose FKBP38 gene was flanked with loxP was constructed by embryo microinjection.The FKBP38 gene was deleted by breeding mice harboring two loxP sites in FKBP38 (FKBP38fl/fl) with the mice bearing the expression ofCre recombinase mice driven by an album promoter.Afterward,the genotype of FKBP38 conditional knockout mice was analyzed.Results:①Relative hepatic FKBP38 mRNA levels showed significant difference between FKBP38 conditional knockout mice (FKBP38-/-) and wild type(P＜ 0.001).②Relative hepatic FKBP38 protein expression levels of FKBP38 conditional knockout mice (FKBP38-/-) were significantly different with wild type(P＜0.001).③Relative phosphorylation of hepatic p70 S6K and 4E-BP-1 protein of FKBP38 conditional knockout mice (FKBP38-/-) showed no significant difference,with slight decrease in phosphorylation of 4E-BP-1,compared with wild type.④No significant difference in expression of hepatic Bcl-2 between FKBP38-/-and wild type.Conclusions:The mouse model of the gene FKBP38 (FK506 binding protein 38) conditional knock out in liver is successfully built.

Objective To assess the results of surgical intervention on patients with medullary thyroid carcinoma(MTC), and determine the value of measuring plasma calcitonin concentration postoperatively. Methods The diagnosis and treatment of 14 patients with MTC from January 1992 to December 1998 were analysed retrospectively. Results The diagnosis of MTC in the 14 patients was confirmed by pathology. Of them, 64.3% of patients had lymph node metastases. According to AJCC staging system, 1 patient was in stage Ⅰ, 7 in stage Ⅱ, 5 in stage Ⅲ and 1 in stage Ⅳ. Of nine patients measured plasma calcitoinin after initial operation, 4 had persisted hypercalcitoninemia. In the 4 patients, MTC in residual thyroid and enarged lymph node were comfirmed by B mode ultrasounography. After re operation, the calcitonin level returned to normal in 3 cases, but one remained in higher level. Postoperative follow up ranged from 2 to 8 years, 2 patients died of the disease. Twelve patients still lived, 6 of them survived more than 5 years. Conclusions The clinical stage of MTC at the time of diagnosis is an important prognostic factor. An aggressive surgical approach at the initial operation is essential to achieve a curative effect in patient with MTC. Measuring plasma calcitonin postoperatively helps to detect residuled MTC or recurrent MTC.

Objective Sperm quality can be affected by many factors .The aim of this study was to observe the effects of di-etary n-6/n-3 polyunsaturated fatty acids ( PUFAs) on sperm concentration and motility . Methods Twenty healthy B6 male mice were equally randomized to a control and an experimental group to be fed with standard diet and standard diet +10%arachidonic acid (AA), respectively, both for 8 weeks.Then the testes and epididymal tails of the mice were collected for observation of the changes in the microstructure of the epididymal tissue and determination of sperm motility and concentration . Results Compared with the con-trol group, the experimental animals showed significantly decreased serum levels of α-linolenic acid ( ALA), eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), docosapentaenoic acid (DPA), and linoleic acid (LA) (P <0.01), but dramatically increased the levels of AA and n-6/n-3 PUFAs (P<0.01).The latter also exhibited remarkable reduction in sperm concentration (7 ×106/mL vs 80 ×106/mL, P<0.01), sperm motility (27%vs 86%, P<0.01). Conclusion High levels of dietary n-6/n-3 PUFAs ratios reduce sperm concentration and motility in mice .

Objective To explore the CT features of renal epithelioid angiomyolipoma (EAML), and to improve the diagnosis of this disease.Methods The clinical materials and image findings of 15 cases (8 female, 7 male) with renal EAML proved by pathologies were retrospectively studied.Plain and enhancement CT scan were performed in all 15 patients.Nine of the 15 cases were correctly diagnosed and the other were misdiagnosed as renal cell carcinoma (RCC) (n=5), renal oncocytoma (n=1).Results There were some distinctive findings of EAML: (1) Little hypodense or iso-high-density, well defined, round lesion with diameter of 2 to 5 cm.(2) The tumor may involve the medulla of kidney or grow out without haematuria.(3) Most lesions showed obviously uniformity enhancement at artery phase, with a few of them showed inhomogeneous enhancement There were thickening and circuitous vessels in a few lesions.(4) Enhancement mode was quick-in and quick-out.Conclusions CT findings combined with clinical materials have important value in making a correct diagnosis of EAML preoperatively.

Objective: This study aimed to discriminate between Eupatorii Herba and its adulterants in order to guarantee the quality and clinical curative effect of this medicinal material. Methods: Genomic DNA extracted from Eupatorii Herba was used as templates. The internal transcribed spacer 2 (ITS2) of nuclear ribosomal DNA was amplified. Sequence assembly and consensus sequence generation were performed by CodonCode Aligner. The intraspecific and interspecific genetic distances of Eupatorii Herba and its adulterants were computed by MEGA5 and the phylogenetic tree was constructed using the neighbor-joining (NJ) method. Results: The length of ITS2 sequence of Eupatorii Herba was 218 bp. The maximum intraspecific genetic distance (K2P distance) of Eupatorii Herba was 0.0092. The minimum interspecific genetic distance of Eupatorii Herba and its adulterants was 0.024. The NJ trees showed that the ITS2 sequence would be used to identify Eupatorii Herba and its adulterants. Con-clusion: ITS2 sequence was able to identify Eupatorii Herba and its adulterants correctly and it provided a new technique to ensure clinical safety in utilization of traditional Chinese medicines.

Objective To introduce the experience in endovascular stent graft repair (EVSGR) of thoracoabdominal aortic dissecting aneurysm (TAADA). Methods Retrospective analysis was made on the management of 6 patients with TAADA from October 2000 to June 2001. Results There were six male patients aged 42～72 in this series. Of them, 5 patients with Stanford type B TAADA and one with Stanford A TAADA. Of the 6 patients, The fissures were sealed and the dissections were disappeared completely in 5 cases; one case shifted to open surgery for abdominal aortic fenestration, Rupture of the iliac dissection occurred in 1 case 3 days after EVSGR, then the abdominal aortic fenestration and graft replacement of distal abdominal aorta were performed. One patient died of heart infarction on the third day postoperatively. Five cases were followed-up for 1～9 months, they all were alive and well. Conclusions Endovascular stent graft technique is safe and simple in repairing of TAADA, and abdominal aortic fenestration is an adjuvant procedure.