Objective To study the risk factors affecting neoplasm recurrence and survival of hepatocellular carcinoma(HCC)following liver transplantation(LT).Methods The clinicopatholo gic data,neoplasm recurrence and survival results of 118 patients with HCC receiving LT were retro- spectively analyzed and various clinicopathologic risk factors for neoplasm recurrence and survival were evaluated by univariate and multivariate analysis.Results The follow-up time ranged from 1 to 32 months.The recurrence rate was 37.3% and the mortality was 35.5%.The 12-,18-,24-month survival rate was 84.55%,70.30% and 62.24%,respectively.The 12-,18-,24-month neoplasm free survival rate was 69.05%,66.93% and 61.38%,respectively.In the univariate analysis,por- tal vein neoplasm thrombus(PVTT),Milan-criteria,neoplasm size,histological differentiation and pTNM stage were associated significantly with neoplasm recurrence,and PVTT,Milan-criteria,pre- operative alpha-fetoprotein(AFP),histological differentiation and pTNM stage were associated signif- icantly with survival rate;In the multivariate Logistic regression analysis,PVTT and histological dif- ferentiation were independent predictive factors of neoplasm recurrence,and multivariate Cox regres- sion analysis showed that PVTT and AFP independently associated with prognosis.Conclusions PVTT and histological differentiation are the most important predictive factors of neoplasm recur- rence,and PVTT and AFP independently predict the survival of patients undergoing LT.

Objective To evaluate the efficacy of tibial bone-skin flap grafts in the management of se- vere traumatic osteomyelitis complicated with bone and skin defect in leg to avoid amputation.Methods From March 1998 to Aug.2004,12 cases of the traumatic osteomyelitis complicated with bone and skin defect in leg were treated with vascularized tibial bone-skin flap graft.The longest flap was 17cm,widethest 10cm, The longest bone flap was 12cm.They were followed up for 0.6 to 5 years.Results All the tibial bone-skin flaps survived completely,2 cases of osteomyelitis recurred.The followed-up,from 0.5 to five years,showed good bone union in all cases,averageing 15 weeks.The infection was under control.The leg function and con- tour were satisfactory.Conclusion The tibial bone-skin flap has the advantages of having distinguished sign of anatomy,highly vascularized,easy to obtain,simply and flexible procedure,improving circulation,short- ens hospitalization and suitable for treatment of traumatic osteomyelitis complicated with bone and skin defect in leg.

Objective To study the clinical significance of the serum angiopoietin-2(Ang-2) in the diagnosis,recurrence,invasion and metastasis of gastric cancer.Methods The serum Ang-2 and carcino-embryonic antigen (CEA) levels in 158 patients with gastric cancer (gastric cancer group) and 30 normal controls(control group) were measured by enzyme linked immunosorbent assay(ELISA) technique respectively.The serum Ang-2 and CEA levels were also measured 2 weeks after operation in gastric cancer group and reexamined in the recurred gastric cancer patients in 2 years after operation (recurred and metastasis group).The correlation between the serum Ang-2 level and pathologic c haracterization of gastric cancer was evaluated.Results The serum Ang-2 and CEA levels in gastric cancer group [ (331.8 ±64.3),(42.6 ±37.3)μg/L] and recurred and metastasis group [(318.7 ±72.9),(40.5 ±36.7)μg/L] were significantly higher than those in control group [ (187.4 ± 32.7),(4.2 ± 3.1 )μ g/L] (P ＜ 0.01 ),and the serum Ang-2 level 2 weeks after operation [ (211.6 ± 75.1 ) μ g/L ] was significantly decreased to the control group (P ＞ 0.05 ),while the serum CEA level [ (33.4 ± 30.6) μ g/L ] was still significantly higher than the control group (P ＜ 0.01 ).The sensitivity of the serum Ang-2 for diagnosis of gastric cancer was markedly higher than that of the serum CEA (P ＜ 0.01 ).There was correlation between serum Ang-2 and degree of tumor differentiation,TNM pathological staging,lymphatic metastasis,invasion depth and tumor size (p ＜0.01 ),but there was no correlation between serum Ang-2 and tissue classification and location of gastric cancer (P＞ 0.05).Conclusion The serum Ang-2 level is suggested to be a valuable gastric cancer marker and conduce to the diagnosis of gastric cancer,the monitoring of recurrence after operation and evaluation of prognosis.

· AIM: To explore the dynamic expression and correlation among telomerase catalytic subunit (TERT), proliferating cell nuclear antigen ( PCNA) and antiapoptosis protein Bd-2 which relate to cell proliferation in epiretinal membrane of rat traumatic proliferative vitreoretinopathy(PVR).· METHODS: S-P technique was applied for immunohistochemical staining of epiretinal membrane of traumatic PVR with TERT, PCNA and Bcl-2 antibody. HE staining was also carried out. The staining results were analyzed with image analysis system.· RESULTS: The positive rate and average A of PCNA protein were upregulated at first and then down-regulated, with the peak value in 14d Group, which was significantly different from those in 7d Group and 28d Group.The positive rate and average A of TERT and Bcl-2 were also upregulated at first and then down-regulated, with the peak value in 14d Group and 21d Group, which were significantly different from those in 7d Group. There was significant correlation among PCNA, Bcl-2 and TERT protein expression (P≤0.01).· CONCLUSTON: TERT and Bcl-2 take part in the regulation of proliferative cells in epiretinal membrane of traumatic proliferative PVR, with high correlation with the dynamic changes of cell proliferation.

Objective To investigate the effect of matrix metalloproteinases(MMPs) in ventilator-induced lung injury inflammatory reaction of newborn rabbits.Methods Seventy-five newborn rabbits aged 1-5 days were randomly arranged to 3 groups:control group(n=3),other 72 rabbits designed by 2?2?3 factorial were divided into high concentration oxygen(100%)and low concentration oxygen(45%) groups,and each group was subdivided into 2 groups:High peak inspiratory pressure(PIP)group and low PIP group.All rabbits were done by mechanical ventilation and killed to obtain lung tissue at 1,3,6 hours after trailing respectively.The concentration of MMP-9 and MMP-2 in lung tissue bomogenate were detected by ELISA,at the same time the ratio of wet to dry was detected and pathological section was analyzed.Results 1.The concentration of MMP-2 in high concentration oxygen group,high PIP group and low PIP group increased compared with that in normal group,and there were significant differences.2.The mean concentration of MMP-9 was lower in high concentration oxygen group than that in normal control group,and there was significant difference between 2 groups.The mean concentration of MMP-9 in low concentration oxygen group was higher than that in normal group,and there was no significant difference between 2 groups.There was no significant difference in effect to mean concentration of MMP-9 by different PIP.3.There were positive correlation between MMP-2 and MMP-9,MMP-2 and the ratio of wet to dry in lung.Conclusions Within 6 hours in newborn rabbits by mechanical ventilation,ventilation with high concentration oxygen up-regulate MMP-2,but down-regulated MMP-9.The lungs stretch by mechanical ventilation increase MMP-9,but decrease MMP-2.Mechanical ventilation can affect the synthesis of MMPs,and MMPs plays an important role in ventilator-induced lung injury of newborn rabbits.

Objective To explore the changes of CD40 and CD40 ligand(CD40L) levels and investigate their significances in children with graft-versus-host disease(GVHD)after related-donor human leukocyte antigen(HLA) matching allogeneic hematopoietic stem cell transplantation(HSCT).Methods Nineteen patients with ?-thalassemia major and 1 patient with congenital inherent hemolytic anemia accepted umbilical cord blood transplantation(UCBT) and allogeneic peripheral blood stem cell transplantation(allo-PBSCT),respectively,and all cases were received successfully related-donor human leukocyte antigen matching allogeneic HSCT.Peripheral blood samples were obtained before and after transplantation,the time when GVHD happened,the expressions of CD40 and CD40L were measured by using immunofluresence asssy.Results Four UCBT children and 3 allo-PBSCT children had no acute GVHD.Thirteen children had acute GVHD(degreeⅠ-Ⅳ),the expressions of CD40L on CD4+ and CD8+ T cells in the patients with acute GVHD increased,especially in allo-PBSCT.Five cases of UCBT and 12 cases of allo-PBSCT patients had chronic GVHD,the expressions of CD40L+,CD25+ and CD69+ on CD4+ and CD8+ T cells in patients with chronic GVHD increased obviously.The expression of CD19+CD40+ was lower than normal within 3 months after transplantation.Conclusions The high expression of CD40L+T cells in periferal blood after HSCT was related to the activation and proliferation of T cells in the development of GVHD in HSCT.

Objective - ，，，，，- - - To establish a gas chromatographic method for the determination of trans 1 1 1 4 4 4 hexafluoro 2 ［ - （）］ Methods - （） butene HFO 1366mzz E in workplace air. HFO 1366mzz E in air was directly collected with aluminum foil ， ， ， composite plastic bag separated by dimethylpolysiloxane capillary column detected by flame ionization detector and Results - （） - 3， quantified with external standard method. The linear range of HFO 1366mzz E was 6.82 68 200.00 mg/m with the 3， correlation coefficient of 0.999 9. The detection limit and the lower limit of quantitation were 0.59 and 1.98 mg/m respectively. - - - The recovery rate was within 95.45% 103.05%. The relative standard deviation of within batch precision and between batch - - ， precision were 2.26% 5.07% and 4.09% 6.82% respectively. The samples can be stored at room temperature for at least seven Conclusion ， ， days. This method is simple to use with a wide linear range low detection limit high accuracy and precision and - （） good sample stability. It can be used for the detection of HFO 1366mzz E in the air of workplace

This study is to develop an HPLC method for the simultaneous determination of (-)-epicatechin, 5-O-caffeoylshikimic acid, neoisoastilbin, astilbin, neoisoastilbin, isoastilbin and engeletin in Smilacis Glabrae Rhizoma. Samples of Smilacis Glabrae Rhizoma, Heterosmilacis Chinensis Rhizoma and Heterosmilacis Yunnanensis Rhizoma were separated on an Agilent Zorbax SB-C18 column with gradient elution of acetonitrile-0.05% phosphoric acid at a flow rate of 1.0 mL · min(-1). The detected wavelength was set at 230 nm and the column temperature was maintained at 35 °C. The contents of (-)-epicatechin, 5-O-caffeoylshikimic acid, neoastilbin, astilbin, neoisoastilbin, isoastilbin and engeletin in 84 Smilacis Glabrae Rhizoma samples were in the range of trace-1.381, trace-9.913, trace-3.673, 0.6706-27.08, trace-1.181, trace-4.833 and trace-2.754 mg · g(-1), respectively. The established method was used for analysis of common adulterants. The results demonstrated that the contents of (-)-epicatechin in Heterosmilacis Yunnanensis Rhizoma and Heterosmilacis Chinensis Rhizoma were 0.01163-0.06007 mg · g(-1) and 0.01583-0.08585 mg · g(-1), respectively, while the other six constituents were not detected. The method is simple and accurate, and can be used for the quality control of Smilacis Glabrae Rhizoma. The constituents of Heterosmilacis Yunnanensis Rhizoma and Heterosmilacis Chinensis Rhizoma are significantly different from Smilacis Glabrae Rhizoma, and they are not suitable for using as Smilacis Glabrae Rhizoma.
Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; analysis ; Liliaceae ; chemistry ; Rhizome ; chemistry

With the effects of the mechanics and biological factors, the imbalance between the degradation and synthesis of chondrocyte, extracelluar matrix and subchondral bone leads to the osteoarthritis. The imbalance between MMPs and TIMPs caused by biomechanical abnormality is the key factor of osteoarthritis. This review will focus on the stress and their roles in the metabolism of the cartilage matrix.
Cartilage ; metabolism ; Humans ; Matrix Metalloproteinases ; metabolism ; Osteoarthritis ; metabolism ; Stress, Mechanical ; Tissue Inhibitor of Metalloproteinases ; metabolism

Objective To explore the relationship between social participation and needs for rehabilitation of the disabled in Guangdong Province and to make a proposal for developing the rehabilitation strategies. Meth-ods The data of the Second National Sample Survey of Disabled Persons in Guangdong Province was used in this study. Ranked data analysis was made with the sub-items of the social participation assessment and the main needs of the disabled individuals. Results Significantly statistical differences were revealed with regard to the constitu-ent ratio of needs for rehabilitation services among people with different degrees of difficulties in social participation caused by hearing and visual impairments as well as physical and mental disabilities. No significant difference was found in terms of the constituent ratio of rehabilitation needs among those with difficulties in speech and those with psychiatric diseases. The major rehabilitation needs focused on medical service, assistive apparatus support and functional trainings. Conclusions The rehabilitation needs were different among different categories of disabled persons. Rehabilitation services should be provided accordingly.