Objective: To measure GCF calprotectin and total protein for evaluating whether the calprotectin could be a sensitive marker for the initial inflammation of gingiva. Methods: Eleven young male subjects with healthy gingiva, who had no systemic diseases, were selected for this study. GCF samples (4 teeth /person) were collected with strips of filter paper at baseline (0 day), on the 7 th, 14 th, 21 st days (without oral hygiene), and 28 th day (7 days after reestablishing oral hygiene) during experimental gingivitis. The amount of calprotectin was measured by ELISA. The amount of total protein was assessed with protein dye binding assay. Results: The amount of calprotectin increased during the experimental gingivitis, and reached the highest level on the 21 st day. After oral hygiene was reestablished it reduced to the level of baseline. The amount of total protein had the same tendency as calprotectin. Conclusion: The amount of calprotectin and the total protein in GCF can reflect the initial inflammation of gingiva.

Objective:To observe the changes of plaque microflora during the experimental gingivitis and to analyze the relationship between the plaque microflora and the clinical parameters.Methods:11 young male subjects with healthy gingiva and without systemic disease were selected.Subgingival plaque samples(2 sites /person)were collected and then smeared by Gongo red at baseline(0 day),the 7th,14th,21st day(without oral hygiene)and 28th day(7 days after reestablishing oral hygiene)respectively during experimental gingivitis.At the same time the clinical parameters were recorded.The results of smear and the clinical parameters were analyzed.Results:The percentage of spirochete was the lowest at the baseline and increased during the experimental gingivitis,and then reached the highest level on the 21st day.The percentage of spirochete of the 21st day showed the significant different compared with that of baseline(P0.05)Conclusion:Spirochete is correlated to the development of the gingivitis.

Objective To explore the relationship of the mean color vessels density (MCVD) and pathologic microvessel density(MVD) in rectal cancers and their relation with T stags and lymph node metastasis.Methods MCVD were caculated preoperationly with transrectal color power angiography(TRCPA).After operation MVD was assessed immunohistochemically using anti-CD105 monoclonal antibody.The relationships within MCVD, MVD and T stages and lymph node metastasis were analysed.Results There were positive correlation between MCVD and MVD (r=0.763, P＜0.01) in rectal cancer.There were significant difference of MCVD and MVD in both the depth of carcinoma invasion and metastasis of lymphatic nodes( P＜0.05).Conclusions MCVD can display features of the blood supply and distribution of pathologic microvessels and reflect the development of rectal cancers.MCVD is a credible index to choose available treatment and to evaluate prognosis before operation of rectal cancer.

Background and purpose:Multidrug resistance(MDR)is the main obstacle of chemotherapy in the treatment of cancer,and it has been reported that the muted p53 gene is related to MDR.In this study,we explored whether adenovirus mediated p53 gene(Ad-p53)could reverse MDR of human breast cancer and its impacts on the expressions of P-gp,TOPOⅡ and GST-?.Methods:In this study,adriamycin-resistant human breast carcinoma cells(MCF-7/Adr)and its parental cells(MCF-7)were used to determine the effect of Ad-p53.Cck-8 assay was adopted to evaluate the cytotoxicity of adriamycin.Western blot were performed to observe the expression of P-glycoprotein(P-gp),TopoismeraseⅡ(TOPOⅡ)and GST-?.Results:After transfection with 50 MOI Ad-p53,the 50% inhibitory concentration(IC50)of adriamycin to MCF-7/Adr cells was decreased from(4.54?0.91)?g/ml to(0.26?0.11)?g/ml,and the chemosensitivity increased 18.1 times(P

Objective To explore the epidemic trend of influenza and pandemic virus variation in Maanshan, and to provide scientific basis for the prevention of influenza. Methods The ILI data of monitor hospitals and some ILI nasopharyngeal specimens were collected, then influenza virus was isolated by MDCK cells, and influenza serotypes were identified by HI. Results 15 904 cases of ILI were reported from 2006 to 2007. The detectable rate of influenza like illness in outpatients was 6.63%. 2 656 nasopharyngeal specimens of ILI were collected, and 358 strains of influenza virus were isolated, with isolation rate of 13.48%, of which 142 were H1N1 subset influenza A virus, 49 were H3N2, 72 were Victoria subset influenza B virus, and 96 were Yamagata. Conclusions During 2006 and 2007 two peaks of influenza-like illness in outpatients was in winter-spring and summer seasons of each year. More attention meeds to be paid to the monitoring of influenza.

OBJECTIVE To improve the knowledge on the early diagnosis and treatment of the isolated fungus ball sphenoid sinusitis.METHODS A retrospe ctive study was made on10cases of isolated fungus ball sphenoid sinusitis to discuss the clinical manifestation,radiographic features and treatment with endoscopic sinus surgery.RESULTS The common symptoms in10cases were headache and/or bloody nasal discharge.Radiographic features of the disease were a soft tissue image occupying the sphenoid sinus with bones wall thickening.A soft tissue image with calcification in the sphenoid sinus was the feature of CT image.All the patients were treated by nasal endoscopic sinus surgery and cured after followed up for3to18.CONCLUSION Isolated fungus ball sphenoid sinusitis was difficult to diagnose in early stage because of its non-specif ic symptoms.The nasal endoscopy and CT scan make the early diagnosis possible.The diagnosis can be def initely confi rmed by pathological studies.Treatment with endoscopic sinus surgery is an effective method for fungus ball sphenoid sinusitis.

OBJECTIVE To evaluate the role of forkhead transcription factor p3(Foxp3) in the pathogenesis of allergic rhinitis(AR).METHODS Nasal tissues and peripheral blood mononuclear cells(PBMCs) were obtained from 17 patients with AR and 11 controls.Foxp3 was detected in nasal tissues by immunohistochemisry and real-time reverse transcription polymerase chain reaction(RT-PCR).Foxp3 and CD4+CD25+T cells were evaluated in PBMCs by using ? ow cytometry.RESULTS The numbers of Foxp3+ cells was(44.2?20.5)cells/mm2 and(129.5? 35.6)cells/mm2 in nasal mucosa of two groups(P

Objective To analyze the correlation between three evaluation methods of middle cerebral artery occlu -sion and focal cerebral ischemia , and to explore a new method and standard for the evaluation of the model .Method Thirty healthy adult male SD rats were randomly divided into a sham-operated group ( n=20 ) and model group .According to Zea-Longa procedure ,we established the disease model to detect the changes in cerebral blood flow before and after sur -gery.The resulted cerebral infarction area was taken as gold standards .Then we analyzed the correlation between the standards and the changes in cerebral blood flow .Results The changes of infarction area ratio were positively correlated with the changes of cerebral blood flow in the model rats .Conclusions The changes of rat cerebral blood flow can be used to evaluate whether the cerebral ischemia model is successful or not .

OBJECTIVE To investigate the best approach of diagnosis and treatment of spontaneous cerebrospinal fluid rhinorrhea.METHODS The clinical data of 13 cases with spontaneous cerebrospinal fluid rhinorrhea performed in our hospital from 1998 to 2007 were analyzed retrospectively.RESULTS The diagnosis of spontaneous cerebrospinal fluid rhinorrhea was established for these 13 cases on a set of diagnostic program,including qualitative determination of sugar in the nasal leakage,nasal endoscopy, CT and MRI scan.All the patients were failed with conservative treatment.All of the 13 patients were cured by surgical repairing under nasal endoscope for follow up of 6 months to 6 years.CONCLUSION The diagnosis program for spontaneous cerebrospinal fluid rhinorrhea includes qualitative determination of sugar in the nasal leakage,nasal endoscopy,CT and MRI scan.Transnasal endoscopic management is the best method for repairing spontaneous cerebrospinal fluid rhinorrhea.

Objective:To investigate the clinical characters and therapeutic methods of orbital apex syndrome caused by sinus diseases.Method:Six cases of orbital apex syndrome originated from sinus diseases were retrospective analyzed in our hospital from August 2003 to February 2009. Different therapeutic methods were taken according to different causes of disease.Result:Four cases of sinus infection,one cases of sphenoethmoid mucocele , one cases of sinus squamous cell carcinoma. The results of patients with orbital apex syndrome included cure and effectiveness in 2 cases respectively, death from myocardial infarction in one case, and one case is still following up.Conclusion:Orbital apex syndrome originated from sinus diseases was rare, which was mainly caused by sinus infection . The key point is the correct etiology diagnosis in early phase . Treatment with endoscopic sinus surgery early is a good effective method for orbital apex syndrome caused by sinus diseases, in the same time with enough dosage of antibiotic and glucocorticoid therapy intravenously.