Genetic Engineering ; Humans ; Rabies ; virology ; Rabies virus ; genetics ; pathogenicity ; Viral Proteins ; genetics ; Virulence

OBJECTIVETo investigate the expressions of serine-threonine kinase (Akt)/mammalian target of rapamycin (mTOR)/p70 S6K in oral squamous cell carcinoma (OSCC) and provide references for early diagnosis and prognosis evalua- tion of OSCC.

METHODSA total of 51 cases of OSCC, 10 cases of paracancerous mucosa, and 10 cases of normal oral mucosa were collected. The expressions of Akt/mTOR/p70 S6K in these cases were detected using the SP method of immunohisto- chemistry. The correlation between their expressions in OSCC was also analyzed.

RESULTSThe positive expressions ofp-Akt, p-mTOR, and p70 S6K in OSCC were significantly higher than those in normal oral mucosa and paracancerous mucosa. The expressions of p-Akt, p-mTOR, and p70 S6K in OSCC were not correlated with age, gender, and clinical stage; by comparison, these expressions were correlated with lymph node metastasis and pathological grade. Strong positive correlations were also observed between the expressions ofp-Akt, p-mTOR, and p70 S6K in OSCC.

CONCLUSIONAkt/mTOR/p70 S6K signaling molecules exhibit active expressions in OSCC and may be implicated in the occurrence and development of OSCC.

Aged ; Animals ; Humans ; Mouth Neoplasms ; Neoplasms, Squamous Cell ; Phosphorylation ; Protein Kinases ; Protein-Serine-Threonine Kinases ; Proto-Oncogene Proteins c-akt ; Ribosomal Protein S6 Kinases, 70-kDa ; Signal Transduction ; Sirolimus ; TOR Serine-Threonine Kinases

OBJECTIVETo analyze the mutation patters of HBV P gene and genotyping of heptitis B virus in patients with chronic hepatitis B (CHB) after the emergence of drug-resistance during lamivudine (LAM) therapy.

METHODSLAM-resistant mutations and genotype of HBV were dectected in patients with LAM-resistant CHB in our hospital from Sep. 2008 to June. 2010.

RESULT107 patients had 8 mutation patterns. YMDD mutations happened in 100%, only YMDD mutation were 43 patients, while others were YMDD combined with rtL180M mutations; the HBV genotype among 107chronic hepatitis was mainly B (25.2%) and C (73.8%) and only 1 patient was happend B and C mixed infection. Genetype C was mainly YMDD combined with rtL180M mutations pattern, the rate is 60.7% (48/79); while genetype B was mainly rtM204 mutation pattern, the rate is 66.7% (18/27); there were significant difference between the genetype B and C in mutation pattern (chi2 = 8.4, 7.2, respectively, P < 0. 01).

CONCLUSIONYMDD mutation is the major mutation pattern of HBV P gene after emergence of LAM-resistance. Genotypes of hepatitis B virus can determine the related mulation patterns of HBV P gene.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Antiviral Agents ; therapeutic use ; Drug Resistance, Viral ; drug effects ; Female ; Gene Products, pol ; genetics ; Genotype ; Hepatitis B virus ; drug effects ; genetics ; isolation & purification ; Hepatitis B, Chronic ; drug therapy ; virology ; Humans ; Lamivudine ; therapeutic use ; Male ; Middle Aged ; Mutation ; drug effects ; Young Adult

Objective To observe the mRNA and protein expression of SOCS-1 and SOCS-3 in the peripheral blood mononuclear cells(PBMCs) in patients with systemic inflammatory response syndrome(SIRS) and explore its clinical significance.Methods Peripheral blood of 20 patients with SIRS and 16 healthy people wag collected and the PBMCs were isolated by centrifugafion and Ficoll-Hypaque sedimentation.The mRNA of SOCS-1 and SOCS-3 was determined by reverse transcription-polymerase chain reaction(RT-PCR).And the protein content of SOCS-1 and SOCS-3 was determined by Western Blotting.Results The SOCS-1 mRNA expression in the PBMCs of SIRS group (0.642±0.112) was significant higher than that of control group(0.458±0.044)(P<0.05).There was no significant difference between the PBMCs,SOCS-1 content of control group(0.488±0.019) and SIRS group (0.471±0.041).The SOCS-3 mRNA expression in the PBMCs of SIRS group(0.989±0.324) was higher than that control group(0.459±0.046)(P<0.05).There was no significant difference between the PBMCs'SOCS-3 content of control group(0.400±0.025) and SIRS group(0.426±0.015).Conclusions The mRNA expression of SOCS-1 and SOCS-3 in the PBMCs were higher in SIRS patients.The SOCS-1 and SOCS-3 may participate in the development of SIRS.

Objective To evaluate the efficacy of port catheter system(PCS)placement in pulmonary artery via percutaneous subclavicle vein treatment for multiple metastatic tumor in the two lungs and discuss the PCS technique.Methods Fifteen multiple metastatic tumor patients(13 hepatocellular carcinomas,one mandible grand adenocarcinoma,one oral bottom squamous carcinoma)were carried out with pulmonary artery PCS placement by way of percutaneous subclavicle vein.FPA/FPM/GP chemotherapy scheme were introduced every 4～6 weeks.Results The success rate of PCS placement technique was 93.3%(14/15).One case failed.Percutaneous subclavicle veins were performed 14 cases in right side and 1 in left one.Following up 2～43 months,2～7 chemotherapy cycles(mean 5 cycles)were accomplished,and the clinical CR and PR were achieved in 1 and 3 cases respectively with clinical efficacy rate 28.6%(4/14).Major side reaction was late wound healing in 1 case.Conclusion PCS placement in pulmonary artery treatment for multiple metastatic tumor in the two lungs is effective,and mastering operation technique is the key for increasing operation suc- cess rate.

Objective:To explore the isolation and culture of a better yield of purified human endometrial glandular epithelial cells and stromal cells. Methods:Digestion with high concentrated collagenase and DNase,filtratinn and adhesion purification were used to isolate,purify human endometrial glandular epithelial cells and stromal cells in 30samples. And the two kinds of cells were reproduced. Results:The endometrial cell culture was successfully established in 29 of 30 endometrium samples. From one gramme of endometrial tissue,the yields of glandular epithelial cells and stromal cells were (40～50)?10~6 and (40～50)?10~6 respectively. The purities of glandular epithelial cells and stromal cells were 96% and 98% respectively. Stromal cells could be reproduced into several passage. However,glandular epithelial cells could not be reproduced. Conclusion:A better yield of purified human endometrial glandular epithelial cells and stromal cells can be obtained by the modified culture procedure.

BACKGROUND:Theex-vivo expanded autologous adipose-derived stem cels have the capability of multipotential differentiation and have a broad application prospect in the field of tissue engineering and regenerative medicine. OBJECTIVE:To observe the nasal mucosal structural repair and functional reconstruction usingex-vivo expanded autologous adipose-derived stem cels. METHODS:Ten patients with mucosal damage due to the physical or chemical factors were enroled, including six cases of mucosal scar and four cases of mucosal ulceration. Autologous adipose tissue was extracted forin vitro isolation, culture and expansion of adipose-derived stem cels. Before transplantation, quality safety testing was done. Al the patients were injected adipose-derived stem cels (1×107/cm2 0.1 cm mucosal tissue sample at 30 days before and after transplantation for hematoxylin-eosin staining, Masson ) at an interval of 15 days, totaly for three times. Nasal volume, minimum cross-sectional area, and mucociliary clearance function were determined at 30, 90, 150 days after the final injection. Three of 10 patients were selected to take a 0.1 cm× trichrome staining, and AB-PAS staining. RESULTS AND CONCLUSION:Clinical symptoms were aleviated in al patients undergoing transplantation of adipose-derived stem cels. Compared with the baseline data, the nasal volume and minimum cross-sectional area were both decreased at 30, 90, 150 days after transplantation (P < 0.05), and the mucociliary clearance function was improved but not significantly (P > 0.05). Compared with the baseline data, the inflammation of the nasal mucosa was significantly reduced, colagen fibers arranged neatly, the deposition was decreased, and mucin secreted from goblet cels was increased in the selected three patients at 30 days after cel transplantation. These findings indicate thatex-vivo expanded autologous adipose-derived stem cels can be used to reconstruct the nasal mucosal structure and its function.

OBJECTIVETo study the clinical value of expression of peripheral blood neutrophil CD64 in adults with measles complicating pneumonia.

METHODS106 patients were divided into two groups by clinical manifestation and bacteria study: measles complicating bacterial pneumonia group and measles complicating viral pneumonia, using flow cytometry determination of CD64, C-reactive protein (CRP) and white blood cell (WBC) count.

RESULTSThe expression of CD64 in the bacterial pneumonia group with eruptive stage was (32.15 +/- 11.07) MFI, which was significantly higher than that in the group of with recovery stage (10.6 +/- 3.23) MFI (P < 0.01) and viral pneumonia (9.55 +/- 3.48) MFI (P < 0.01). These markers were considered positive if CD64 > or = 8.5 MFI, CRP > or = 10 mg/L and WBC > or = 9.05 x 10(9)/L. Their sensitivity was 78.12%, 80.48% and 59.37%. Their specificity was 76.19% ,67.67% and 64.28%. Their accuracy rate was 77.35%, 74.52%, 61.32%; CD64 has a positive relationship with CRP.

CONCLUSIONCompared to CRP, expression of peripheral blood neutrophil CD64 can be a better marker in the early diagnosis of patients with measles complicating bacterial pneumonia and as one of the indicators of disease conditions.

Adult ; Biomarkers ; blood ; metabolism ; C-Reactive Protein ; metabolism ; Female ; Humans ; Leukocyte Count ; methods ; Male ; Measles ; blood ; immunology ; microbiology ; Pneumonia, Bacterial ; blood ; immunology ; virology ; Receptors, IgG ; biosynthesis ; blood ; immunology

Distal radius fracture is one of the most common injuries of human beings, particularly in young males and elderly females. There are various classifications among which classification by author' names and the AO fracture classification system are most frequently used. Although the latter one is overall and consummate, a precise classification system with complete description of the fracture remains to be raised. Recently, with the development of wrist biomechanics and microscope anatomy, more and more studies were made to treat distal radius fracture. Good reduction and fixation are the key points for treatment. In tenns uf treatment, several options exist. Nonoperative management consists of closed replacoment and external fixation. Operative treatments includes intrafocal pinning ,non-bridging and bridging external fixation , various methods of open reduction internal fixation and hone or bone substitute transplantation. Besides, arthroscopic-assisted external fixation and artificial joint for wrist become a new hot spot. However,any single therapy could not treat all sorts of distal radius fractures. Therefore, it is better to institute individualized therapy according to different fracture characteristics of each patient in order to achieve the best curative effect. This review aims to make a conclusion about advancement in distal radius fractures, in aspects of epidemiology, classification and treatment.
External Fixators ; Fracture Fixation, Internal ; Humans ; Radius Fractures ; classification ; epidemiology ; surgery

Objective: To establish the aortic regurgitation model in Chinese miniature pigs under echocardiography guidance. Methods: The animal models were established by following steps: general anesthesia, measuring body weight and then receiving echocardiography examination to exclude aortic valve lesions; carotid artery was exposured by surgery, catheter was sent to aortic sinus with stiff guide wire penetrates and the position of catheter was adjusted to obtain aortic valve damage. The aortic valve injury and regurgitation were evaluated by ultrasound; then the pigs were killed and the heart was taken to observe aortic valve damage. Results: A total of 7 pigs were used including 4 male and 3 female with the mean body weight of (24.7 ± 3.6) kg. Aortic regurgitation model was successfully established in 5 pigs including 1 mild, 1 mild-moderate, 2 moderate, 1 severe aortic valve regurgitation, and 4 were with valve lealfets perforation and 1 with lealfets tearing. Conclusion:①Echocardiography can smoothly guide wire go through aortic valve and make valve damage at different degrees, it is reliable to establish aortic valve regurgitation model in experimental pigs.②Echocardiography may clearly identify the position and degree for aortic valve injury.