Objective To explore distally-based the interal ankle perforator saphenou neuro-veno-fasciocutaneous flap has been universally adopted for the repairment of the foot and the ankle soft-tissue defects.Methods Lay a foundation of anatomic studying,using the interal ankle perforator saphenous neuro-venofasciocutaneous flap 10 cases, the flap axis point was 1-3 cm above the pink of the interal ankle, average 2 cm. The scope of the flap were 4.0 cm× 3.0 cm-8.0 cm× 6.0 cm. Results All the perforator saphenous neuro-veno-fasciocutaneous flap were lively. About all, 2 cases had the small distant part necrosis, 1 case accompanying with subcutaneous tissue heels after change dressings, another heels after skin grating. All case can walk as usual, the flap had wear-resisting and keenly feel. Conclusion Distally-based the interal ankle perforator saphenous neuro-veno-fasciocutaneous flap, near ankle, donner area exiting fine, utlizing scope large, skin nice, grating easy, no hurting important blood vessle, alive rate high, it is an good donner area in repairing the foot and the ankle soft-tissue defects.

ObjectiveTo evaluate the theoretical knowledge level of Chinese students majoring in stomatology based on the problem-based learning (PBL).MethodsThe Cochrane reviewer's handbook was followed by.Domestic published articles from 1989 -2010 were selected by computer and handwork.All these retrieved studies were controlled clinical trials related to oral theoretical education and were conducted by PBL and the traditional teaching methods.The quality of included studies was critically evaluated and the data were analyzed by the RevMan 5.0.1 software.ResultsA total of 138 articles were selected,but only 8 were included.Significant differences were found when the data were pooled(P ＜ 0.01,I2 =80％ ) and random effect model was used for meta-analysis.The results showed that comparing with the traditional teaching methods,PBL can improve the theoretical score of dental students [ MD 5.39,95％ CI(2.20,8.58)],and sensitivity analysis showed that the result was stable.ConclusionPBL can improve the theoretical score of Chinese students majoring in stomatology.However,as part of the studies are not high quality literature,the above conclusion needs to be verified by more large sample-sized,rigorously designed randomized controlled clinical trials.

Objective　To study the similarities and differences on in vitro replication and expression of hepatitis C virus (HCV) between human fetal hepatocytes (HFH) and 7721 cell line. Methods　Human fetal hepatocytes and a hepatoma cell line 7721 were incubated with a serum from hepatitis C patient. After incubation, the presence of HCV RNA, the expression of HCV NS3 antigens in cells and/or supernatant were examined by RT-PCR, in situ hybridization and immunohistochemistry, respectively. Results　It was found that: ①The intracellular HCV RNA was first detected on d 2～3 post-incubation and then could be intermittently detected in cells and/or supernatant subsequently (HCV RNA could be detected in 7721 cells during a period of at least 66 days. In HFH, HCV RNA could be detected up to 25 days after incubation); ②HCV-NS3 antigen could be expressed in infected cells; ③Minus-strand RNA of HCV was mainly located within cytoplasm by in situ hybridization. Conclusion　The results suggest that both the fetal hpatocytes and the hepatoma cell line 7721 are susceptible to HCV, and especially 7721 cell line can stably support HCV replication in vitro and may be used as the target cell for long-term cultures of HCV.

Objective To study the changes in the level of serum IMA in patients with cardiac arrest followed by CPR,and explore the value of serum IMA in predicting prognosis of these patients after CPR.Methods (1) A total of 36 patients (25 men and 11 women) after CPR following cardiac arrest were recruited into experimental group (group C).Of them,15 cases (11 men and 4 women) and 21 cases (14men and 7 women) were assigned into resuscitation group (group R) and non resuscitation group (group NR),respectively,according to the presence or absence of ROSC.Meanwhile,another 60 healthy subjects (39 men and 21 women) matched for age and gender were recruited into healthy control group (group H).(2) The determination of the serum IMA level and comparisons of changes in serum IMA levels among groups were carried out.Results (1) The level of serum IMA in group C was higher than that in group H (P ＜ 0.05) ; The serum IMA level in group R was lower than that in group NR and higher than that in group H (P ＜0.05 for both).(2) The area under the ROC curve for serum IMA in predicting the prognosis of patients treated with CPR after cardiac arrest was 0.73.When the cut off value was 128.25 U/mL,the sensitivity and specificity were 57.1％ and 93.3％ respectively; the positive predictive value and negative predictive value were 92.3％ and 60.9％ ; positive likelihood ratio and negative likelihood ratio were 8.5 and 0.5 ; the correct diagnosis index was 72.2％,and Youden index was 50.5％.Conclusions Serum IMA has a certain value in prediction of prognosis in patients treated with CPR following cardiac arrest.

Cerebral Palsy ; classification ; complications ; epidemiology ; Child ; Child, Preschool ; China ; epidemiology ; Developmental Disabilities ; complications ; Female ; Humans ; Infant ; Language Disorders ; complications ; Male ; Seizures ; complications ; Sex Factors ; Vision Disorders ; complications

Objective To investigate the clinical features of pneumocystis carinii pneumonia (PCP)in patients with autoimmune diseases.Methods The data from 12 patients with autoimmune diseases who were hospitalized in Peking Union Medical College Hospital because of developing PCP were retrospectively reviewed.Clinical characteristics and T cell subsets in the peripheral blood were analyzed.Results The main clinical manifestations of these 12 patients were fever(12/12),cough(9/ 12),expectoration(9/12)and obvious dyspnea(12/12),which were progressive.Blood gas analysis presented with typeⅠrespiratory failure.Bilateral interstitial and alveolar infiltrates were observed in chest X-ray film.The counts of peripheral blood lymphocytes(0.44?0.31)?10~9/L,CD4~+ T-lymphocytes (0.120?0.079)?10~9/L and CD8~+ T-lymphocytes were(0.248?0.252)?10~9/L decreased significantly and the CD4/CD8 ratio reversed,which were significantly different from those of healthy person(P

In order to improve the interfacial bonding strength of hydroxyapatite/polyurethane implanted material and dispersion of hydroxyapatite in the polyurethane matrix, we in the present study synthesized nano-hydroxyapatite/polyurethane composites by in situ polymerization. We then characterized and analyzed the fracture morphology, thermal stability, glass transition temperature and mechanical properties. We seeded MG63 cells on composites to evaluate the cytocompatibility of the composites. In situ polymerization could improve the interfacial bonding strength, ameliorate dispersion of hydroxyapatite in the properties of the composites. After adding 20 wt% hydroxyapatite into the polyurethane, the thermal stability was improved and the glass transition temperatures were increased. The tensile strength and maximum elongation were 6.83 MPa and 861.17%, respectively. Compared with those of pure polyurethane the tensile strength and maximum elongation increased by 236.45% and 143.30%, respectively. The composites were helpful for cell adhesion and proliferation in cultivation.
Biocompatible Materials ; chemistry ; Cell Adhesion ; Cell Line ; Durapatite ; chemistry ; Humans ; Polymerization ; Polyurethanes ; Tensile Strength ; Transition Temperature

Co-processed excipients withgelatinized or non-gelatinized starch were prepared by spray drying. Powder and tablet properties of corocessed excipients prepared were compared with those of physical mixtures and spray-dried lactose. Their applicability in traditional Chinese medicine (TCM) powder tableting was tested on two TCM extracts, i.e., the gardenia extract and the Herba Sedi extract. It was shown that gelatinizing starch before co-spray drying with lactose could improve the performance and efficiency of starch as a binder, resulting in remarkable improvement in physicomechanical properties of co-processed excipients prepared. Conpared to self-made and commercially available spray-dried lactose, co-processed excipients achieved better compactability and higher drug loading for TCM extracts. In conclusion, the lactose-gelatinized starch co-processed excipient, with excellent physicomechanical properties, is promising to be explored as a new excipient for direct tableting.
Excipients ; chemistry ; Lactose ; chemistry ; Medicine, Chinese Traditional ; methods ; Powders ; chemistry ; Starch ; chemistry ; Tablets ; chemistry

Objective To explore the safety of Habib VesOpen bipolar radiofrequency ablation (RFA) catheter used in the treatment of portal vein tumor thrombus (PVTT). Methods A total of 10 miniature pigs were randomly divided into 3 groups. Group A(n=6):RFA of normal portal vein was directly performed;group B (n=2): balloon obstruction of the portal vein was performed first, which was followed by RFA for the fresh thrombus in the portal vein; group C (n=2): PVTT model was established first, and RFA of the portal vein was carried out when the portal thrombus became organized. MRI examination was employed at one, 3 and 4 weeks after RFA; the animals were sacrificed 4 weeks after RFA and pathological examination of portal vein was performed. Results Pigs of group A received portal vein RFA under the condition of 5 W power for 0.6-3.6 min. No obvious abnormality was detected by MRI and pathological examination , which were performed one month after the treatment. In the pigs of group B , MRI performed after RFA showed that the damage of portal vein area was more serious than that in the pigs of group A;abdominal MRI examination performed at one, 3 and 4 weeks after RFA showed that the portal venous edema was gradually decreased;pathological examination at one month after RFA demonstrated serious injury of adjacent liver tissue. Pigs of group C received portal vein RFA under the condition of 7 W power for 1.5 min; no obvious edema of the ablated area was observed on MRI performed after RFA , and pathological examination revealed organized thrombus necrosis and va scular endothelial cell damage. Conclusion When Habib VesOpen bipolar RFA catheter is used for the treatment of PVTT, the RFA power and time should be properly selected according to the severity of PVTT. In order to ensure a safer procedure, high power and short ablation time should be used when the severity of PVTT is mild, while low power and longer ablation time are recommended when the PVTT is more severe.

BACKGROUND:Previous studies have reported the cause and treatment of biliary complication. However, how to improve operative technique for preventing the complication is rarely reported.
OBJECTIVE:To explore the effect of operational skil s during liver transplantation on biliary complications.
METHODS:Biliary complications in 475 patients who underwent liver transplantation were retrospectively analyzed. The relationship between operational skil s and biliary complications after liver transplantation was observed. The potential risk factors about operative technique were summarized. Some preventive interventions for biliary complications were suggested.
RESULTS AND CONCLUSION:Biliary complication was diagnosed in 36 (7.6%) of 475 patients who underwent liver transplantation. They were nonanastomotic biliary stricture (n=19, 4.0%), anastomotic biliary stricture (n=7, 1.5%), biliary leakage (n=3, 0.6%), twisted common biliary duct (n=3, 0.6%), residual common duct stone (n=1, 0.2%), and neoformative common duct stone (n=3, 0.6%). There was no difference in the incidence of nonanastomotic biliary stricture among the three biliary anastomotic styles. The possibility of anastomotic biliary stricture in placing T-drainage tube group was lower than the other two groups according to clinical data. Nevertheless, there was no statistical difference between these three groups. Infusing UW into the liver from cranial mesenteric vein and douching the biliary duct immediately while taking the donor could decrease the incidence of biliary complication after liver transplantation (P=0.013 and P=0.018, OR=0.26 and OR=0.28), the later factor could also decrease the incidence of nonanastomotic biliary stricture (P=0.001, OR=0.09). Meanwhile, some operational skil s also decrease the incidence of biliary complications, such as protecting the artery around the biliary duct, and elevating the liver when suturing the common biliary duct.