Objective To investigate reconstructive repair methods of a large scalp defect with the granulation tissue wounds and skull exposure caused by the trauma.Methods Skin and soft tissue expansion technique was used to repair eight patients with a large scalp defect with the granulation tissue wounds and skull exposure caused by the trauma.The skin and soft tissue expanders were embedded under normal epicranial aponeurosis after the formation of fresh granulation tissue wound.Strict aseptic technique as well as water injection was done in the expansion process and moderate expansion to maintain rich blood circulation in the expansive parts.Results 12 skin and soft tissue expanders were implanted in 8 patients and the scalp wounds were completely repaired.No infection was detected after surgery and injection expansion process.Conclusions The skin and soft tissue expansion can be used to reconstruct post-traumatic scalp defect with granulation tissue wound and skull exposure.

Objective To investigate the expression and significance of Smad4 in peripheral hepatocytes of lesions in mice with hepatic alveolar echinococcosis.Methods Eight mice in the test group were inoculated with alveolar echinococcosis and 8 mice in the control group were injected with normal saline.The expression of Smad4 protein in the hepatic tissue of the mice was detected by immunohistochemistry method,and the data were analyzed by chi-square test.The effect of alveolar echinocoeeosis on the expression of Smad4 protein was investigated.Results Smad4 was detected in cell nuclei and partly in the cytoplasm.Six months after the establishment of the mice model for alveolar echinococeosis,the expression of Smad4 in the hepatic tissue in the test group was significantly higher than in the control group(x2=19.869,P＜0.05).The number of Smad4 with positive expression in the hepatocytes in the test group was slightly higher than in the control group,and the expression intensity of Smad4 in the test group was greater than in the control group(x2=58.3 10,P＜0.05).Conclusions The increase of the expression of Smad4 protein in the periphery hepatocytes and tissues of hepatic alveolar echinococcosis lesions may play a role in hepatic cirrhosis and immune evasion.

OBJECTIVETo investigate the effects and underlying mechanism of notoginsenoside R1 on amyloid-β (1-42) (Aβ(1-42)) induced mitochondrial apoptotic death in SH-SY5Y cells.

METHODCell viability was assayed by MTT, apoptotic rates were analyzed with PI/Annexin V flow cytometry, Bax and Bcl-2 expression were detected with Western blotting, enzymatic activity of caspase-3, caspase-8 and caspase-9 were measured by ELISA assay.

RESULTThe 6.25-100 nmol x L(-1) of notoginsenoside R1 attenuate Aβ(1-42) induced apoptotic death of SH-SY5Y in dose dependent manner. The ratio of Bcl-2/Bax was elevated in SH-SY5Y with notoginsenoside R1 treatment. Caspase-3 and caspase-9 were activated with notoginsenoside R1 treatment while caspase-8 was not affected.

CONCLUSIONNotoginsenoside R1 could protect SH-SY5Y cells from Aβ(1-42) induced apoptosis via mitochondria related apoptotic pathway.

Amyloid beta-Peptides ; antagonists & inhibitors ; Apoptosis ; drug effects ; Caspases ; metabolism ; Cell Line, Tumor ; Cell Survival ; drug effects ; Cytoprotection ; Ginsenosides ; pharmacology ; Humans ; Mitochondria ; drug effects ; Peptide Fragments ; antagonists & inhibitors

12E7 Antigen ; Adnexa Uteri ; surgery ; Adult ; Aged ; Aged, 80 and over ; Antigens, CD ; metabolism ; Cell Adhesion Molecules ; metabolism ; Diagnosis, Differential ; Female ; Follow-Up Studies ; Granulosa Cell Tumor ; drug therapy ; metabolism ; pathology ; surgery ; Humans ; Hysterectomy ; methods ; Inhibins ; metabolism ; Middle Aged ; Neoplasm Recurrence, Local ; Neoplasm Staging ; Ovarian Neoplasms ; drug therapy ; metabolism ; pathology ; surgery ; Survival Rate ; Vimentin ; metabolism

Aged ; Aged, 80 and over ; Anti-Bacterial Agents ; pharmacology ; Coal Mining ; Cross Infection ; complications ; microbiology ; Drug Therapy, Combination ; therapeutic use ; Humans ; Male ; Methicillin ; pharmacology ; Methicillin Resistance ; Microbial Sensitivity Tests ; Middle Aged ; Pneumonia ; drug therapy ; etiology ; Silicosis ; classification ; complications ; Staphylococcus aureus ; drug effects ; Treatment Outcome

A two-step method for the purification of blocking-type anti-human CD80 monoclonal antibody 4E5 from mouse ascites was developed using anion exchange and gel filtration in combination. The ascites was first purified by anion exchange after centrifugation and filtration. The experimental parameters of sample loading and elution were optimized. The optimized loading condition was pH 8.0,50 mmol/L Tris-HCl and satisfactory results were obtained using a 0~0.5mol/L NaCl step elution. The fraction containing the protein of interest was directly loaded on gel filtration column and eluted using a 20 mmol/L phosphate buffer at pH 7.2. The purity of the obtained monoclonal antibody was up to 95% with a recovery of 61%. The purity of mAb could efficiently inhibit the growth of Daudi cells. The amplification of the method was also studied using a Bio-Scale Q5 column and the result was satisfied.

Background During the past two decades, a number of rating scales were developed to facilitate diagnosis and assessment of subjects with social anxiety disorder. One of the most commonly used scales for the assessment of social anxiety disorder is the Liebowitz social anxiety scale (LSAS). The LSAS is widely used in epidemiologic investigations and clinical researches,and its assessment in the pharmacotherapy efficacy for social anxiety disorder is superior to any other scale. So we designed this study to explore the validity and reliability of the LSAS in Chinese patients with social anxiety disorder and normal control, and to find the difference of the scores between the patients self -report version and clinician-administered version. Methods Fifty five patients meeting the DSM-Ⅳ diagnostic criteria for social anxiety disorder and 168 normal controls who were screened from 222 college students were rated by LSAS, social phobia scale and self-made General Information Forms. Results The Cronbath α of LSAS for the patients and the normal controls was 0.83 and 0.77, respectively. The 4-week test-retest reliability for total scores and its factors scores of LSAS in 31 normal controls were ranging from 0.68 to 0.79. The ROC area under curve value in discriminating the patients from normal controls was 0.87±0.03; the total score of 35 was considered to be the best cut-off score for LSAS, then its sensitivity was 0.77 and its specificity was 0.81; and no significant difference between the self-report version and clinician-administered version. Conclusions The LSAS is good in internal consistency and test-retest reliability, and has high sensitivity and specificity in discriminating the patients and the controls. There is no significant difference in the total score and each factor scores of LSAS between self-report version and clinician-administered version.

Objective To investigate the effect of blood vessels at different locations and angles between blood vessel and sonic axis within the target area on HIFU peripheral ablation.Methods Totally 56 phantoms containing rabbit thoracic a orta were divided into group A (different vessel locations) and B (different vessel angles).According to the distance (d)between the blood vessel center and the deepest (top) layer of the peripheral scanning,group A was divided into A1 (d=0),A2 (d=10 mm),A3 (d=20 mm) subgroups.According to the angle (α) between the vessel long axis and the acoustic axis,group B was divided into B1 (α=0-5°),B2(α=60° 65°),B3 (α=90°-95°),B4 (α=115°-120°) subgroups.A4,B5 subgroups were set as the control groups.The vessel diameter and vessel wall thickness were measured.The lesion morphology was observed and the energy efficiency factor (EEF) was calculated.Results There was no significant difference in vessel diameter and vessel wall thickness in both group A and B (all P＞0.05).There was no residual area in the target area of A1,B1 subgroup,while there was residual area in the target area of the other subgroups.EEF of group A in ascending order were A4,A1,A2 subgroup,and statistically significant differences in pairwise comparisons (all P＜0.05) except for A1 and A3 subgroup (P＞0.05).EEF of group B in ascending order were B5,B2,B3 subgroup,respectively,and statistically significant differences in pairwise comparisons (all P＜0.05) except for B2 and B4,B5 and B1 subgroup (both P＞0.05).Conclusion It is 10 mm that the distance between the blood vessel center and the deepest (top) layer of the pe ripheral scanning,and 90°-95° that the angle between the vessel long axis and the acoustic axis has the greatest influence on the ablation of the target area.

OBJECTIVE:To investigate the effect of Wuzhi soft capsule on the pharmacokinetics of sirolimus in rats. METH-ODS:Wistar rats were randomly divided into 5 groups,with 6 rats in each group. They were given very low-dose,low-dose,me-dium-dose and high-dose of Wuzhi soft capsule(67,134,268 and 536 mg/kg)ig or blank solvent,respectively;and then given si-rolimus 0.4 mg/kg. The blood 100 μl was sampled by capillary eyes before giving sirolimus(0 h)and 0.5,0.75,1,1.5,2,2.5, 3,4,6,8,12,24 and 36 h after giving sirolimus and put into edetic acid anticoagulation tube. Blood concentration of sirolimus was assayed by LC-MS/MS. The pharmacokinetic parameter was calculated by DAS 2.0 software using non-compartment model. RESULTS:The pharmacokinetic parameters of sirolimus in very low-dose,low-dose,medium-dose and high-dose groups and blank solvent group were cmax of(6.79±1.15),(17.40±3.13),(21.24±3.14),(22.06±4.82),(2.80±0.72)ng/ml;t1/2 of(11.01± 0.82),(12.20±2.02),(12.28±2.38),(12.36±0.73),(10.59±0.69)h;AUC0-∞ of(85.79±15.26),(162.18±41.75),(273.12± 73.69),(268.79±28.46),(36.72±3.01)ng·h/ml,respectively. Compared with blank solvent group,cmax and AUC0-∞ of sirolimus were all increased in very low-dose,low-dose,medium-dose and high-dose groups,but t1/2 changed slightly. CONCLUSIONS:Wu-zhi soft capsule can substantially enhance the absorption of sirolimus in rats.