Objecive To evaluate the causes of 60 cases for clinical failure in post crown.Methods Sixty cases with failure in post crown cure were entered the study.The causes of failure were analyzed.Results Among the 60 cases with failure in post crown cure,38 cases were due to the crown'loosing or broken away,12 cases with the broken dental crown,10 cases with periapical periodontitis,6 cases with broken root.Conclusions It was the loosing or broken away of post crown,periapical periodontitis,dental crown and root broken consist of the main causes for clinical failure in post crown.

Objective To investigate iron deposition level in patients with ischemic cerebrovascular disease and its correlation with cerebral small vessel disease (CSVD) imaging markers.Methods A total of 74 patients with first-ever transient ischemic attack (TIA) (median age:69 years old;30 males,44 females) and 77 patients with positive ischemic stroke history (median age:72 years old;43 males,34 females) were studied retrospectively.On phase image of susceptibility weighted imaging (SWI),regions of interest (ROIs) were manually drawn at the bilateral head of the caudate nucleus (CN),lenticular nucleus (LN),thalamus (TH),frontal white matter (FWM),and occipital white matter (OWM).The correlation between iron deposition level and the clinical and imaging variables was also investigated.Results Iron deposition level at LN was significantly higher in patients with previous stroke history (P ＜ 0.05).It was linearly correlated with the presence and number of cerebral microbleed (CMB) but not with white matter hyperintensity (WMH) and lacunar infarct.Conclusions Ischemia may cause iron deposition elevation at basal ganglia,and LN may be more susceptible to ischemia-induced alteration.CMB may be an independent risk factor for higher iron deposition.

Objective To evaluate the Chinese decoction prescriptions combined with incision drainage operation in treatment of perianal abscess after leukemia chemotherapy.Methods One hundred cases of perianal abscess after leukemia chemotherapy were randomly divided into two groups,treatment group (Chinese decoction prescriptions combined with incision drainage operation) and control group (potassium permanganate combined with incision drainage operation).Observe and record the efficacy and ache alleviated after treatments,recurrences were followed up in and 3 years.Results After the treatments,the total effective rate was 90.0％ in the treatment group,significantly more than control group(72.0％),the difference was significant(x2 =10.52,P ＜ 0.05).And treatment after a week the VAS score in the treatment group and control group were(2.2 ± 0.4) and(4.7 ± 1.2),(t =14.62,P ＜0.05).The healing time were(13.4 ±9.3) d and(19.8 ±11.6) d,(t =4.95,P ＜ 0.05).After 3 years follow-up the recurrence rate and fistula formation rate in the treatment group and control group were 2.0％ and 2.0％,22.0％ and 26.0％,(x2 =18.93 and 23.92,P ＜ 0.01).Conclusion Chinese decoction prescriptions could collaborative incision drainage operation treatment of perianal abscess after leukemia chemotherapy,effective and safe,suitable for extensive application and promotion.

Objective CA125 has been proved to be closely related to peritoneal metastasis of gastric cancer.This study aimed to screen and identify a novel ssDNA aptamer targeting the extracellular domain of Mucin16. Methods Using capillary elec-trophoresis, we screened the aptamers targeting the synthetic peptide of the extracellular domain of Mucin16 and quantitatively deter-mined the Kd value of each cycle and the affinity of the aptamers for the synthetic peptide by CE-SELEX.Then we evaluated the ability of the obtained aptamers to target cancer cells using confocal laser imaging. Results After five cycles of screening, sequencing, af-finity determination, we obtained an ssDNA aptamer targeting the extracellular domain of Mucin16, with a Kd value of 122.7 nm and visible green fluorescent signals on the cell membrane of the human ovarian cancer cell line expressing Mucin16, but not on that of the normal hepatocytes not expressing Mucin16.This confirmed the binding ability of the aptamer to the extracellular domain of Mucin16. Conclusion A novel aptamer targeting the synthetic peptide of the extracellular domain of Mucin16 was successfully obtained by capil-lary electrophoresis, which could be used as a new agent in the diagnosis and treatment of peritoneal metastasis of gastric cancer.

Objective To investigate the expression of muhidrug resistance-related protein 1 (MRP1),lung resistance-related protein(LfuP)and glutathione S-transferase-π(GST-π)in carcinoma of the gallbladder and cholangiocarcinoma. Methoils MRP1,LRP,GST-πwere measured in experimental group(18 cases of carcinoma of the gallbladder,36 CSSeS Of cholangiocarcinoma)and control group(13cases of cholecystitis and cholangeitis)by immunohistochemistry.Statistical analysis used chi-square test and spearman test. Results The positive rate of MRP1,LRP,GST-π in carcinoma of the gallbladder and eholangiocarcinoma were 72%(13/18),78%(14/18),61%(11/18)and 86%(31/36),75%(27/36),69%(25/36),respectively,significantly higher than those of 23%(3/13),23%(3/13),23%(3/13)(X2=4.5,P＜0.05)in control group.The expression of LRP[93%(13/14)]in pafients＞60 years old was significantly higher than 64%(14/22)in patients younger than 60 yrs old(x2=3.9,P ＜0.05).In addition,their expression was not related to gender,age,staging,tumor differentiation and lymph node metastasis(P＞0.05).The expression of MRP1 was related with tllose Of GST-π,Spearman correlation coefficient=0.569(P＜0.05).Conclusions MRP1,LRP,GsT-π were over expressed in various degrees in carcinoma Of the gallbladder and cholangiocarcinoma witllout chemotherapy.and related to the primary muhidrug resistance Of cholangiocarcinoma and carcinoma of the gallbladder.

For the issues existed in training of general practitioners, with characteristics of community health-care service centers (CHS) and large-scale urban hospitals, a training model of exchange physicians between hospitals and CHSs was formulated. After three-month practice, a general practitioner-specialist technical cooperation group was established. The new model not only promoted construction of a two-way referral system, but also created environmental condition for training community physicians.

Objective To investigate the clinical characteristics and prognosis in the patients with type 2 diabetes mellitus and invasive pulmonary aspergillosis(IPA) for better management of the disease .Methods Clinical data of 9 cases of type 2 diabetes associated with IPA treated in Qingdao Municipal Hospital from January 2008 to December 2013 were analyzed retrospectively . Results The diagnosis of IPA was proven in 5 and probable in 4 of the 9 patients .The main clinical manifestations were fever , cough and expectoration .The findings of CT scan mainly showed pulmonary nodules along the bronchovascular bundle and cavity signs .Bronchoscopy showed congestion ,edema ,and erosion of bronchial mucosa covered with yellow‐white or brown pus ,partially or completely blocking the lumen .Antifungal treatment was effective for 4 patients .The other five patients died . Conclusions Type 2 diabetes mellitus is a risk factor for developing invasive pulmonary aspergillosis .Early diagnosis and proper treatment are critical for improved prognosis .

Objective To evaluate the effect of TGF-β1 and IL-1β expression in serum on acute radiation-induced heart disease (RIHD) in patients with thoracic tumors.Methods Three-dimensional conformal radiotherapy (3D-CRT) or intensity modulated radiotherapy (IMRT) was delivered at 1.8-2.0 Gy,5 times per week to a total dose of 50-66 Gy to 44 patients with lung cancer and 10 patients with esophagus cancer.The target and organs at risk dose distribution were analyzed by 3-dimensiond treatment planning system.The expressions of TGF-β1 and IL-1β in serum were detected by enzyme linked immunosorbent assay before and at the end of the irradiation.The cardiac injury was evaluated by detecting the cmyocardium creatase,cardiac troponin I (cTnI),electrocardiogram and cardiac function before and at the end of the irradiation within 90 d.The acute RIHD was evaluated by the Common Terminology Criteria V 3.0 (NCI-CTCAE 3.0).The expressions of TGF-β1 and IL-1β in the serum of RIHD patients with thoracic tumors were analyzed.Results The expression of TGF-β1 in serum was (888.4 ± 41.1) μg/L before the irradiation and approached to (926.1 ± 23.1) μg/L at the end of the radiotherapy.The expression level of TGF-β1 in the serum of acute RIDH group was (900.6 ± 34.5) μg/L,higher than that of normal group [(865.7 ±47.0) μg/L,t =-2.646,P ＜0.05)].The acute RIDH was correlated with the expression level of TGF-β1 before irradiation and the difference before and at the end of irradiation (r =0.378,0.311,P ＜0.05).The IL-1β expression had no significant difference before and after irradiation.The expression of TGF-β1 in serum before and at the end of irradiation had positive correlation with the expression of IL-1β at the end of the irradiation (r =0.416,0.389,P ＜ 0.05).Conclusions The expression of TGF-β1 in the serum of patients with thoracic tumor increases after irradiation and correlated with the acute RIHD,but the expression of IL-1β in serum has no relationship with RIHD.TGF-β1 could induce the expression of IL-1β at the end of the irradiation.

Objective To study the expressions of hypoxia inducible factor (HIF)-1 and angiopoietin (Ang)-2 in repeated gastrointestinal bleeding due to vascular malformation, and the efficacy of treatment with thalidomide. Methods Twenty-five patients with repeated gastrointestinal bleeding due to vascular malformation confirmed by capsule endoscopy or enteroscopy were collected and 18 subjects without severe diseases were served as controls. Ten patients with gastrointestinal vascular malformation, who received 25 mg of thalidomide 4 times daily for 4 months and were followed up for at least one year, were also enrolled. The serum samples from all participauts were detected for expressions of HIF-1 and Ang-2 using enzyme-linked immunosorbent assay (ELISA).The expressions of HIF-1 and Ang-2 were compared between angiodysplasia group and control group.The expressions of HIF-1 and Ang-2 were comparatively evaluated before and after treatment with thalidomide in treatment group. Results The expressions of HIF-1 and Ang-2 in vascular malformation group [( 113. 84 ± 26. 66 ) ng/ml and ( 652. 11 ± 140. 39) ng/ml, respectively] were significantly higher than that of control group [(43.28±17.30) ng/ml and (265.60±53.88) ng/ml,respectively, P=0. 000]. The expression of HIF-1 was positively associated with that of Ang-2. (r=0. 700, P= 0. 000). There was no difference in expressions of HIF-1 and Ang-2 before and after treatment with thalidomide (P=0. 498 and =0. 136, respectively). However, significant reduction of Ang-2 [(113. 80±73. 60) ng/ml(P=0. 003)] was found in 8 effectively treated patients after thalidomide treatment. Conclusions HIF-1 and Ang-2 might play an important role in the formation of vascular malformation. The extent of Ang-2 reduction after thalidomide treatment may be helpful in evaluating its efficacy or prognosis.

Objective To investigate the local-regional recurrence in thoracic esophageal cancer after radical surgery including two-field lymph node dissection and provide evidence for postoperative radiotherapy. Methods We reviewed local-regional recurrence for 134 cases with esophageal squamous cell carcinoma after radical surgery from 2004 to 2009. Results In 134 cases, lymph node metastasis rate,anastomosis recurrence rate and tumor bed recurrence rate was 94. 0%, 9. 7% and 3.7%, respectively. As to the 126 cases with lymph node metastasis, significant difference was detected between mediastinal metastasis, supraclavicular metastasis and abdominal lymph node metastasis (80. 2%, 43.7% and 13.5%,respectively, χ2= 113. 15, P = 0. 000). Furthermore, the relative metastasis rate in upper mediastinum,middle mediastinum and the lower mediastinum was 73.8%, 39.7% and 1.6%, respectively, the difference was statistically significant ( χ2 = 139. 11, P = 0. 000 ). Significant difference was identified between right and left supraclavicular lymph node metastasis (31.7% vs 16. 7%, χ2= 7. 81, P = 0. 005 ).To confirm the analysis above,lymph node metastasis rate of left recurrent laryngeal nerve nodes, (including region 1L, 2L, 4L and 5) ,right recurrent laryngeal nerve nodes, azygos nodes, subcarinal nodes, and 2R region was 38.9%, 43.7%, 15.1%, 34.1% and 25.4%, respectively. Conclusions The main characteristics of local-regional recurrence may be lymph node metastasis for esophageal squamous cell carcinoma after radical surgery. On the contrary, tumor bed recurrence is rare. Dangerous regions include supraclavicular nodes, recurrent laryngeal nerve nodes, azygos nodes as well as subcarinal nodes.