BACKGROUND: Glass ionomer cement has been a commonly used filling matedal in the clinic. However, glass ionomer easily absorbs water and dissolves in early concretionary phase, which can reduce the leak tightness of the edge of obturator, resulting in slightly leakage. Therefore, protective agents are necessary following glass monomer filling. OBJECTIVE: To compare the effects of three protective agents (vaseline, cocoa butter, luminous paint) on edge closeness of glass ionomer cements. DESIGN, TIME AND SETTING: The controlled observation study was performed at the Central Laboratory, Hospital Affiliated to Medical College, Qingdao University from July to October 2007. MATERIALS: Forty freshly block teeth were used. After cleaning the facing, a 5 mm×3 mm×2 mm cavity was made at 1/3 part near to buccal surface using a high speed turbine engine under water cooling. Tooth facing was coated twice with colorless nail-polish at1 mm from the cavity. Apical foramen was covered with rod wax sheet. Teeth were equally and randomly assigned into control group, vaseline group, cocoa butter group and luminous paint group. METHODS: Glass ionomer cement was filled into the cavity. The filling surfaces were respectively coated with vaseline, cocoa utter and luminous paint in each group. The control group was left intact. Hot-cold cycle test and microleakage test were performed. MAIN OUTCOME MEASURES: The depth from dye penetration into the cavity wall to filling was recorded. RESULTS: Microleakage to different degrees was observed in each group under the microscope. However, the penetration depth was deeper in the control group than other three groups (P ＜ 0.05). No significant difference in penetration depth was detected among the vaseline, cocoa butter and luminous paint groups (P ＞ 0.05). CONCLUSION: Vaseline, cocoa butter and luminous paint have good effects on wet prevention.

OBJECTIVE To investigate and analyze the problems and challenges of HIV/AIDS epidemic on public health supervision in China.METHODS The main problems were found out by retrospective survey method,and could be solved through establishing a system of management.RESULTS The laws,regulations and specializations were strengthened and the full of public health supervision efforts were made.CONCLUSIONS It is essential to actively participate in widespread mass media education efforts to mainstream knowledge about HIV/AIDS prevention and care.But also to strengthen laws and specializations,to improve the quality of supervision,and to prevent and control of HIV/AIDS epidemic.

Objective To observe the hypoglycemic, hypolipidemic and antioxidant effects of Zhuye Shigao Decoction (ZSD) on experimental type 2 diabetes mellitus rats. Methods Type 2 diabetes mellitus rat model was induced by intragastric administration of high fat diet(10 mL/kg) and intraperitoneal administration of streptozotocin (30 mg·kg-1). Sixty male Sprague-Dawley rats were randomized into normal group, model group, low-, moderate-and high-dose ZSD groups (in the dosage of 3.6, 7.2, 14.4 g·kg-1·d-1 respectively), and Metformin group (0.15 g·kg-1·d-1) , 10 rats in each group. With fasting blood glucose, urine glucose, glycosylated hemoglobin, total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol(LDL-C), serum insulin, serum superoxide dismutase(SOD) and malondialdehyde (MDA) as the main indexes, we evaluated the influence of ZSD on the blood glucose and lipid levels as well as oxidative stress in type 2 diabetes mellitus rats. Results Compared with the model group, the levels of blood glucose, urine glucose and glycosylated hemoglobin, and the contents of TC, TG, MDA were decreased (P <0.05), whereas SOD activity and serum insulin level were obviously increased (P < 0.05) in ZSD groups. ZSD showed dose-related effectiveness in the treatment of diabetic rats. Conclusion ZSD has certain hypoglycemic, hypolipidemic and antioxidant effects in treating type 2 diabetes mellitus.

BACKGROUND: Glass ionomer cement has been a commonly used filling material in the clinic. However, glass ionomer easily absorbs water and dissolves in early concretionary phase, which can reduce the leak tightness of the edge of obturator, resulting in slightly leakage. Therefore, protective agents are necessary following glass ionomer filling. OBJECTIVE: To compare the effects of three protective agents (vaseline, cocoa butter, luminous paint) on edge closeness of glass ionomer cements. DESIGN, TIME AND SETTING: The controlled observation study was performed at the Central Laboratory, Hospital Affiliated to Medical College, Qingdao University from July to October 2007. MATERIALS: Forty freshly block teeth were used. After cleaning the facing, a 5 mm?3 mm?2 mm cavity was made at 1/3 part near to buccal surface using a high speed turbine engine under water cooling. Tooth facing was coated twice with colorless nail-polish at 1 mm from the cavity. Apical foramen was covered with red wax sheet. Teeth were equally and randomly assigned into control group, vaseline group, cocoa butter group and luminous paint group. METHODS: Glass ionomer cement was filled into the cavity. The filling surfaces were respectively coated with vaseline, cocoa butter and luminous paint in each group. The control group was left intact. Hot-cold cycle test and microleakage test were performed. MAIN OUTCOME MEASURES: The depth from dye penetration into the cavity wall to filling was recorded. RESULTS: Microleakage to different degrees was observed in each group under the microscope. However, the penetration depth was deeper in the control group than other three groups (P 0.05). CONCLUSION: Vaseline, cocoa butter and luminous paint have good effects on wet prevention.

CD19-targeted chimeric antigen receptor T-cell (CAR-T) therapy is effective in refractory/relapsed (R/R) B-cell acute lymphoblastic leukemia (B-ALL).This review focuses on achievements,current obstacles,and future directions in CAR-T research.A high complete remission rate of 68 ％ to 93％ could be achieved after and-CD19 CAR-T treatment for B-ALL Cytokine release syndrome and CAR-T-related neurotoxicity could be managed.In view of difficulties collecting autologous lymphocytes,universal CAR-T is a direction to explore.Regarding the high relapse rate after anti-CD19 CAR-T therapy,the main solutions have been developing new targets including CD22 CAR-T,or CD19/CD22 dual CAR-T.Additionally,some studies showed that bridging into transplant postCAR-T could improve leukemia-free survival.Some patients who did not respond to CAR-T therapy were found to have an abnormal conformation of the CD 19 exon or trogocytosis.Anti-CD19 CAR-T therapy for R/R B-ALL is effective.From individual to universal CAR-T,from one target to multi-targets,CAR-T-cell has a chance to be off the shelf in the future.

Objective To evaluate the safety of CT guided percutaneous lung biopsy in the elderly,and to analyze the risk factors for its complications.Methods Totally 204 elderly patients aged ≥65 years underwent transthoracic needle biopsy under CT guidance.Clinical data,complication and its risk factors were analyzed retrospectively.Results The complications included pneumothorax accounting for 15.2％ (31/204),hemoptysis 21.6％ (44/204),and no mortality was found.Logistic regression analysis showed that needle path ≥5.00 cm,lesion size ≤2.00 cm and emphysema around the lesion were the independent risk factors for postoperative pneumothorax (OR=4.05,2.54 and 3.97,all P＜0.05).Meanwhile,the enhancement degree by CT ＞40 HU,needle path ≥5.00 cm and lesion size ≤2.00 cm were the independent risk factors for postoperative bleeding (OR=2.27,2.82 and 2.33,all P＜0.05) in elderly patients undergoing lung biopsy.The sensitivity and specificity for postoperative pneumothorax and bleeding obtained by forecasting equation were 87.1％ and 49.1％,54.5％ and 80.8％ respectively.Conclusions The length of needle path,lesion size and emphysema around the lesion are correlated with pneumothroax,and length of needle path,lesion size and the CT enhancement degree are correlated with bleeding after percutaneous lung biopsy in the elderly.

Hyperuricemia is closely associated with hypertension,diabetes,coronary heart disease.However,numerous studies have shown that as a natural antioxidant,uric acid has a strong antioxidant effect.It can enhance the body's overall antioxidant capacity,scavenge free radicals in tissue,decrease the level of oxidative stress,and improve the outcomes in patients with stroke.It may provide a new target for the treatment of stroke through investigating the neuroprotective effect of uric acid on ischemic stroke.

BACKGROUND:The effect of body mass index (BMI) on the outcomes ofin vitrofertilization (IVF) is controversial. Some scholars suggested that the higher BMI, the lower rate of pregnancy, and the higher rate of abortion. However, some others got the different results. To data, the effects of BMI on the pregnancy outcomes in females at different ages are rarely reported.
OBJECTIVE:To explore the effect of BMI on the pregnancy outcomes of IVF for infertile women atdifferent ages.
METHODS:A total of 902 cycles undergoing IVF were divided into two groups according to the age:≤ or> 35 years old groups. The patients in each group were then divided into four subgroups according to BMI: low weight, normal weight, excess weight, and obesity subgroups, respectively.
RESULTS AND CONCLUSION: With increasing BMI, the average dosage of gonadotropins was increased gradualy in two both of age groups (P < 0.05). In the≤ 35 years old, the levels of estrogens on the day of injecting human chorionic gonadotropin was significantly lower in obesity group than the other subgroups (P < 0.05); the rates of empty folicle in excess weight and obesity subgroups were significantly higher than that in normal weight subgroup (P < 0.008 23). The fertilization rate and clinical pregnancy rate of in obesity subgroup were significantly lower than those in the other subgroups (P < 0.05). In the > 35 years old group, the empty folicle rate in obesity subgroup was significantly higher than that in normal weight subgroup (P < 0.008 23). Fertilization rate in excess weight and obesity subgroups was significantly lower than that in the normal weight subgroup (P< 0.008 23). There were no significant differences in cleavage rate, cycle cancelation rate, implantation rate, biochemical pregnancy rate and abortion rate between four subgroups (P> 0.05). These findings suggest that in the females at the younger age, BMI not only affects the quality of folicles and fertilization rate; but with increasing BMI, clinical pregnancy rate is decreased obviously. However in the females at the older age, BMI only affects the folicular quality, embryo quality and fertilization rates; there are no significant differences in the outcomes of pregnancy in the four subgroups. BMI have effects on pregnancy outcomes of IVF, and the effects are much greater in the younger female group.

Objective To discuss the therapeutic method of the chronical septic hip replacements with discharging sinuses. Methods Ten cases of infected hip replacement with discharging sinuses, including 6 males and 4 females with a mean age of 59 years old (from 48 to 65 years old ) were reported. The preoper ative mean Harris score was 31 (range 26 to 38), mean erythrocyte sedimentation rate (ESR) was 56 mm/h (38 to 74 mm/h). Cultures and sensitive test before and d uring operation were both carried out. One stage revision was performed in eig ht cases, two stage revision was performed in two cases. Results Preoperation microorganism cultures of joint aspiration or pus in sinus were positive in eigh t cases and negative in two cases; six had staphylococcus and two Gram negative microorganism. Intraoperation microorganism cultures were positive in nine cases and negative in 1 case; seven had staphylococcus and two had Gram negative. Acc ording to the results of preoperation microorganism cultures, six cases of staph ylococcus infection two negative cases of microorganism culture were treated wit h one stage revision, the other two cases of infection by Gram negative microo rganism had undergone two stage revision. No recurrence was found after 19 mon ths (8 to 30 months) follow up. ESR after operation decreased to normal range. Mean Harris score increased significantly to 82.5 (78 to 89) after revision(t- test, P

Lung adenocarcinoma accounted for about 70％ of non-small cell lung cancer,and now a higher risk of detected.Early diagnosis and early treatment can significantly improve lung adenocarcinoma patients after operation and improve the survival rate of patients.Bronchoscope clinical diagnosis of lung cancer and chest wall puncture in pathology has problem in that it is an operation and specimen is not easy to get,compared to tumor markers that are easy to obtain.A series of studies in recent years have shown that the joint detection of tumor markers has important value in early detection and diagnosis,prognosis assessment,and tumor recurrence of lung adenocarcinoma.