Overexpression of epidermal growth factor receptor (EGFR) in esophageal cancer has been related to tumor grade, vascular invasion and metastasis. The level of EGFR expression may be a predictive marker of esophageal caneer's sensitivity to chemoradiotherapy. EGFR inhibitors have been indicated as an effective targeted therapy, and promising results have been observed in phase Ⅱ and Ⅲ clinical trials.

OBJECTIVE:To observe the efficacy and safety of ornidazole combined with Jinzhi jieyin gargle in the treatment of acute wisdom tooth pericoronitis. METHODS:110 patients with acute wisdom tooth pericoronitis were randomly divided into control group and observation group. Control group was given one Ornidazole tablet,ground into fine powder in sterile bottle. Checking oral cavity carefully before treatment,Hydrogen peroxide solution (3%) and 0.9% Sodium chloride injection were in sterile syringe to repeatedly and alternatively flushing peripheral tissue to clean the food residuals,bacteria and pus in gingival pock-et,until spilled solution was clear and no purulent. Sterile cotton swabs were used to blot up and separate it from the wet. After sep-arating gingival valve by probe,ornidazole fine powder was put into gingival pocket and pressed into deep area by tampons,and kept tampons,once a day + 2 Amoxicillin capsules,3 times a day. Observation group was additionally given 10 ml Jinzhi jieyin gargle in mouth for 3 min after the spilled solution was clear and no purulent,for 2 times,then ornidazole fine powder was put in-to blind pouch. 10 ml was taken in mouth for 3 min after three meals per day. The treatment course for both groups was 4 d. Clini-cal efficacy,main symptom and total scores of main symptoms,secondary symptom and total scores of secondary symptoms be-fore and after treatment,and incidence of adverse reactions in 2 groups were observed. RESULTS:The total effective rate in obser-vation group was significantly higher than control group,the difference was statistically significant (P<0.05);after treatment, main symptom and total scores of main symptoms,secondary symptom and total scores of secondary symptoms in 2 groups were significantly lower than before,and observation group was significantly lower than control group,the differences were statistically significant(P<0.05). And there was no significant difference in the incidence of adverse reactions between 2 groups(P>0.05). CONCLUSIONS:Ornidazole combined with Jinzhi jieyin gargle has better efficacy than only ornidazole in the treatment of acute wisdom tooth pericoronitis,it can significantly reduce the main symptom scores and secondary symptom scores,with similar safety.

MinK-related peptides is a unique family of ion channel ancillary subunits,that modify voltage-gating,conductance and pharmacology of ion channel subunits.This article reviews MinK-related peptides on the gene and protein structure,subunits from a variety of subfamilies,and the potential role in physiology and pathology.

Objective To investigate the effects of survivin antisense oligonucleotide (ASODN) on human uterine endometrial cancer HEC-1B cell line. Methods The experiment included four groups: blank control group (blank), lipofectin control group (Lip), oligonucleotide (SODN) control group and antisense oligonucleotide (ASODN) test group. Artificially synthesized survivin antisense oligonucleotide was transfected for 48 hours into endometrial cancer cells using liposome after cultivation. The expression of survivin protein was determined by Western blot, and the cellular apoptotic rate was tested by flow cytometric analysis. MTT method was used to assay cellular growth rate. Results In comparing with the blank, Lip and SODN control groups, survivin protein expression was obviously decreased in HEC-1B cancer cells after transfected with survivin ASODN. The apoptotic rate and proliferation inhibition rate in ASODN test group were significantly higher than that in the control groups (P<0.05). There was no significant difference between other control groups (P>0.05). Conclusions The expression of survivin is decreased in endometrial cancer cells after ASODN transfection. Survivin ASODN causes cellular apoptosis and inhibits the proliferation of HEC-1B cells. It may be a useful gene therapy for endometrial cancer.

Objective　To evaluate the value of the ultrasound and the helical CT in the diagnosis of hepatic focal nodular hyperplasia(FNH).Methods　Fifteen patients with 16 lesions were examined by B-mode ultrasound ,color Doppler ultrasound and helical CT. All of them were proved to be FNH by pathology.Results　In these patients, the hypoechoic pattern with homogeneous solid lesions was mostly displayed on B-mode ultrasound, and the central stellate scar was only found in 1 lesion. A color blood flow with arterial spectrum was detected within central area of FNH in 13 lesions, and spokewheel color flow was depicted in 3 lesions. These color flow patterns were specific for FNH. All lesions were hypervascular and homogeneous on arterial phase scans of CT. The central scars were detected in 7 lesions, and a dilated feeding artery was seen in 8 lesions on the arterial phase scans. The isodense changes were displayed in 11 lesions on the portal phase or delayed phase.Conclusions　The conventional ultrasound combined with color Doppler ultrasound and CT combined with dynamic scan can raise the accuracy for the diagnosis of FNH.

Hypofractionated conformal radiotherapy is capable to deliver much higher doses to the cancer than is possible with standard techniques. Recently there is data suggesting that the early stage nonsmall cell lung cancer ( NSCLC) which is not suitable to surgery is likely to benefit from this regimen, with low lung toxicity. Manyphase Ⅰ-Ⅱ studies showed that the patients with locally advanced NSCLC are well-tolerated to hypofractionated conformal radiotherapy. The model of radio-physic and relative clinical studies suggest that hy-pofractionation would not increase the risk of radiation pneumonitis compared to standard therapy.

Objective To evaluate the effect of dexmedetomidine on perioperative cellular immune function in elderly patients undergoing radical operation for gastrointestinal cancer.Methods Forty ASA physical status Ⅰ-ll patients,aged 65-82 yr,weighing 43-80 kg,undergoing elective radical operation for gastrointestinal cancer,were randomly divided into 2 groups (n =20 each) using a random number table:control group (group C) and dexmedetomidine group (group D).Anesthesia was induced with sufentanil,propofol and rocuronium and maintained with inhalation of sevoflurane,infusion of propofol and intermittent iv boluses of sufentanil and rocuronium.A loading dose of dexmedetomidine 0.5 μg/kg was infused intravenously over 10 min starting from 30 min before induction of anesthesia,followed by infusion at 0.3 μg· kg-t· h-1 until the end of operation in group D.The equal volume of normal saline was given in C group.Venous blood samples were obtained at 30 min before induction,and 1,24 and 72 h after operation for determination of plasma concentrations of interferon (IFN)-γ,interleukin (IL)-2,IL-10 and IL-4 by ELISA.Results Compared with group C,the plasma concentrations of IFN-γand IL-2 were significantly increased,and the plasma concentration of IL-10 was decreased at each time point after operation (P ＜ 0.05),while no significant change was found in the plasma concentration of IL-4 at each time point after operation in group D (P ＞ 0.05).Conclusion Dexmedetomidine can improve the perioperative cellular immune function in elderly patients undergoing radical operation for gastrointestinal cancer.

An experimental study was carried out on the isolated bone cells, from the embryonic calvarium of Sprague-Dawley rats which were taken out in vitro culture in the later period of gestation. Observation of the early stage of culture was carried out with phase contrast microscope, H. E. staining and AcP and AlP technique. It was found that both the osteogenic cells of the cambium layer of the periosteum and the undifferentiated cells from the bone marrow could develop into large squamous-shaped cells. These cells possessed many processes connected with the adjacent cells and stained light red color with Sirius Red but revealed no birefringency under polarized microscope. This indicates that these cells are precursors of collagen formation. The negative reaction with the alkaline phosphatase staining pointed out that these cells still belong to the osteogenic cells.

Stereotactic body radiation therapy (SBRT) has been applied in extracranial metastases effectively,with the characteristics of concentrated dose distribution in target region,great dose gradient change in surrounding region and low dose in normal tissue beside target region.The radiation biology characteristics of SBRT,therapeutic mechanism,integration of SBRT into standard systemic therapy regimens have been studied further.

Objective:To detect and compare the intensity of gingipain K(Kgp)in culture medium and cell extract of Porphyromonas gingivalis(P.gingivalis)isolates in puberty gingivitis,and then to reveal the possible relationship between Kgp and puberty gingivitis.Methods:36 patients with puberty gingivitis aged from 14 to 17 years were enrolled.Clinical parameters including GI,SBI and PD were evaluated before subgingival plaque samples collection.Subgingival plaque samples were collected and then P.gingivalis isolates were obtained.16S rRNA PCR was used to confirm the presence of P.gingivalis in clinical isolates.Bacteria were cultured in BHI agar base and harvested at the end of log-phase growth.Culture fractions of P.gingivalis(culture medium and cell extracts)were performed with SDS-PAGE and Western blot technique using primary antibody against specific anti-Kgp N-terminal IgG subdomain.The data were statistically analyzed using SPSS 11.5 software.The relationship between the Kgp intensity and the clinical parameters was statistically analyzed using sum rank test.Results:There was positive correlation between the intensity of Kgp N-terminal IgG subdomain and the clinical parameters(P