Objective To evaluate the efficacy of Leukotriene receptor antagonists in treatment of patients with asthma and allergic rhinitis(AR).Methods This study was a 24-week,randomized,control open trial in which 100 children,who were diagnosed as mild to severe persistent coexisting asthma and AR,were enrolled.All cases were collected from pediatric out-patient department of the First Affiliated Hospital of Guangzhou Medical College from October 1st,2005 to April 30th,2006 and were divided into three groups.Montelukast group(1 group):inhated budesonide turbuhaler and oral singulair(5mg/Qn);Intranasal corticosteroids group(2 group):inhaled budesonide turbuhaler and intranasal budesonide nasal spray(64?g/Qd);Control group(Control group):only inhaled budesonide turbuhaler.Efficacy was assessed by recording daytime and nighttime symptom scores,nasal symptom scores,the times of acute episode,the symptomfree days,the requirement for the weekly beta 2-receptor agonist and the medication scores,using a daily diary card and the recording work were repeated per fo ur weeks in totally six months.Lung function(forced expiratory volume at 1 s inpredicted normal,FEV1%) and nasal eosinophil count had been tested three times:before treatment,after treatment of 8th and 24th week.Results 1 group and 2 group,compared with the prior treatment(P0.05);1 group was more statistically significant than 2 group in improving FEV1(P

AIM:To investigate the relationship between the thrombin-activatable fibrinolysis inhibitor (TAFI) level in plasma and atherosclerosis, the TAFI level in plasma and blood fat and blood clotting index.METHODS: Totally 40 healthy male Wistar rats were randomly divided into 4 groups (n=10), control group, high lipid group, high lipid +vitamin D3 overload group, and high lipid +vitamin D3+endothelium injure group by treating the animals with normal diet, high lipid, high lipid+ vitamin D overload, and high lipid+vitamin D overload+endothelium injury, respectively, for inducing three stages of AS in rats. Then, the total cholesterol (TC), total triglyeride (TG), high density lipoprotein (HDL), low density lipoprotein (LDL), and prothrombin time (PT), activated partial thromboplasin time (APTT), fibrinogen (Fib), the activity of TAFI were measured.RESULTS: TC, TG, LDL-C, Fib and the activity level of TAFI in plasma in three model groups increased gradually compared with the control (P

[Objective]This study was designed to explore the dynamic changes of cytokines in the local tissues of radiationinduced oral mucositis in a rat model.[methods]The rat oral mucosal tissues were obtained at 5 d,8 d,and 14 d after irradiation.which were received single X-ray irradiation of 30 Gy locally.RayBio~((R)) Rat Cytokine Array was applied to analyze the 19 cytokines.The mRNA levels of the 8 inflammatory-related cytokines were analyzed by real time-PCR.ELISA was employed to detect IL-1α,IFN-γ,and TIMP-1 protein levels.[Results]Cytokine array detection showed that cytokines such as Frac,IL-4,IL-6,IL-10,and TNF-α were down-regulated after irradiation.IL-1β,LIX,VEGF,and β-NGF were no obviously changed at the same time corse.The elevate range less than 2 fold of the CINC-2,GM-CGF,Leptin,MCP-1,and MIP-3α after irradiation were detected.The increasing range more than 2 fold of CINC-3,INF-γ,IL-1α,and TIMP-1 post irradiation were detected.The mRNA levels of anti-apoptosis,such as Bcl-2,and TNF-α,IL-6,VEGF,and IL-1β were low down,while the levels of promoting apoptosis cytokine such as Bax,and neutrophil recruitment associated cytokines,CINC,and TLR-9 were up-regulated after irradiation.The ELISA results of IL-1α,IFN-γ,and TIMP-1 were identical with the results of the two previom analyses.[Conclusion]The results of the three methods in the study should present evidences to prove each other.Some cytokines in the local lesion of oral mucositis during the initiate,development,and progression stages were blocked,while others were positively up-regulated to involving the control of the pathogensis of oral mucositis.

Objective To evaluate the correlation between spiral CT ( SCT ) features and expression of cyclooxygenase-2 , nm23 in esophageal carcinoma.Methods Spiral CT scans were preformed in 44 patients with esophageal carcinoma before operation, and the results were compared with that of operation and pathology. Immunohistochemical streptavidin peroxidase conjugate method was used to analyze the expression of Cox-2 and nm23 in esophageal carcinoma. Statistical analysis was performed with SPSS 12.0 software. Results (1) The accuracy of spiral CT scan in judging adjacent- infiltration and lymph node metastasis in 44 patients was 88.6%(39 of 44) and 90.9% (40 of 44) respectively,there was significant coincidence with operation and pathology(P

Objective To investigate the clinicopathologic characteristics and prognosis of triple negative breast cancer patients. Methods A retrospective analysis was performed for 1042 primary breast cancer patients admitted in the First Affiliated Hospital of Nanjing Medical University from January 2003 to December 2009.All breast cancer patients were categorized into three subgroups by immunohistochemistry:ERBB2 +,HR +/ERBB2 - and triple negative. Results Of 1042 breast cancer patients recruited,183 patients were in triple negative group.The rate of larger tumors ( greater than 2 cm in diameter) and grade Ⅲ in triple negative patients was higher than that in ERBB2 + and HR +/ERBB2 - patients (P ＜0.01 ).The positive rate of p53 status in ERBB2 + patients was higher than that in triple negative and HR +/ERBB2- patients (P ＜ 0.01 ).No significant differences were observed in other clinical variables.In survival analysis,more bone metastases were observed in HR +/ERBB2 - patients than in ERBB2 + and triple negative patients (P =0.006).However,no significant difference was observed in visceral metastases among the subgroups.There were significantly different recurrence-free survivals (RFS) among the three subgroups throughout the follow-up period ( P =0.029),the 5-year RFS of ERBB2 + was 80.3％,which was the worst in three groups. Conclusions Triple negative patients had higher rate of larger tumors (greater than 2 cm in diameter) and grade Ⅲ than that in ERBB2 + and HR +/ERBB2 - patients,while its 5-year RFS was higher than ERBB2 + patients.

Objective To understand the clinical features of hepatitis B virus(HBV)/hepatitis C virus(HCV)coinfected patients with different virological profiles.Methods The clinical data of 186 patients with HBV/HCV coinfection from May 1999 to May 2010 in the Third Affiliated Hospital of Sun Yat-Sen University were analyzed retrospectively.The demographic data,epidemiological data,laboratory results and pathological index were analyzed.The statistical analysis was done using t test and chi square test.Results A total of 186 patients were divided into 4 groups:66(35.5%)in HBV DNA(-)/HCV RNA(-)group,8(4.3%)in HBV DNA(+)/HCV RNA(+)group,68(36.6%)in HBV DNA(+)/HCV RNA(-)group and 44(23.7%)in HBV DNA(-)/HCV RNA(+) group.The gender composition,complication incidence,transmission among drug users,alanine aminotransferase(ALT)level,total bilirubin(TBil)level,prothrombin activity(PTA)and hapatitis B e antigen(HBeAg)negative rate were all significantly different among four groups(F or x2=11.578,8.451,11.738,2.669,5.102,4.254 and 18.413,respectively;all P<0.05).In groups of HCV RNA(-)and HCV RNA(+),the proportions of patients infected through drug abuse were 49.3%and 23.1%,respectively(x2=9.987,P:0.002)and blood transfusion transmission were 29.9%and 46.2%,respectively(x2=4.412,P=0.036).When HBV DNA was negative,the median ALT levels in HCV RNA(-)and HCV RNA(+)patients were 177 U/L and 62 U/L,respectively(t=2.200,P<0.05),median TBil levels were 133 μmol/L and 20μmol/L,respectively (t=3.608,P<0.05)and PTA were 70.6%±27.7%and 83.3%±27.8%,respectively(t=-1.982,P<0.05).The HBeAg negative rate was not affected by HCV RNA levels(t=0.707,P>0.05).The HBeAg negative rate in HBV DNA(-)patients was 85.5%,which was higher than that in HBV DNA(+)patients(59.2%)(x2=16.393,P<0.05).Conclusions HBV DNA(+/-)/HCV RNA(-)profile were major components in HBV/HCV confection.HBV DNA level is related to disease progression and prognosis,but not relate to disease severity.Liver function damage and disease severity are aggravated with HCV RNA level decreases.HBV DNA level is related to HBeAg negative rate,while HCV RNA level is not related to HBeAg seroconversion rate.

Objective To investigate the effects of aging on procollagen α polypeptide gene transcription and protein expression in rat vascular smooth muscle cells.Methods Vascular smooth muscle cells from thoracoabdominal aorta in neonate and 9 months old healthy Wistar rats were cultured in vitro.Results Transcription polymerase chain reaction(RT PCR) and Western blotting were used to detect type Ⅰ and Ⅲ pro-collagen α polypeptide mRNA and protein.The RT-PCR displayed that type Ⅰ procollagen α polypeptide mRNA expression had no significant difference between young group and adult group [(76.62±1.05) vs.(78.37±2.42),P＞0.05].Type Ⅲ procollagen α polypeptide mRNA expression was (105.40 ± 2.66) in young group and (123.10 ± 3.81) in adult group(P＞0.05).Type Ⅰ procollagen α polypeptide mRNA expression was (3.13 ±0.54) in young group and (4.63 ± 1.03) in adult group (P=0.05).Type Ⅲ procollagen α polypeptide mRNA expression had no significant difference between the adult and young groups[(6.86 ±0.41) vs.(7.68±0.63),P＞0.05].Type Ⅰ and type Ⅲ procollagen α polypeptide protein expressions were increased significantly in adult group as compared with the young group [(0.10 ± 0.03) vs.(0.06±0.03),(0.58±0.06) vs.(0.40±0.02),both P＜0.05].Conclusions Aging increases the procollagen α polypeptide level in vascular smooth muscle cell,which may involve in the development of vascular remodeling and atherosclerosis.

Objective:To explore the value of octreotide suppression test(OST) in predicting the efficacy of somatostatin receptor ligands(SRLs) in the treatment of active acromegaly.Methods:The clinical data of 76 patients with active acromegaly from 2011 to 2020 was retrospectively analyzed. OST was carried out as follows: After an overnight fasting and baseline sampling of growth hormone(GH), 100 μg octreotide was subcutaneously injected, and sampling for GH was obtained every 2 hours for 8 hours. All patients were treated with SRLs for at least 3 months. A good GH response is defined as a post-treatment random GH<1 μg/L or >80% fall compared with the baseline GH. A good insulin-like growth factor Ⅰ(IGF-Ⅰ) response is defined as IGF-Ⅰ<1.3 upper limit of normal(ULN) or >50% reduction compared with the baseline. If both GH and IGF-Ⅰ fulfill the criteria of a good response, it is defined as a good GH and IGF-Ⅰ response.Results:The baseline level of GH during OST was 15.00(6.38, 34.20) μg/L, the median time to reach the nadir GH was(3.65±1.65) hours, and the nadir GH level was 1.47(0.50, 4.19) μg/L. The median GH suppression rate was 89.12%(72.71%, 95.09%). When the cutoff value of GH suppression rate in predicting a good GH response was 89.32%, the area under the curve(AUC) was 0.74, with a sensitivity of 81.80% and specificity of 66.00%. When the cutoff value of GH suppression rate in predicting a good IGF-Ⅰ response was 93.14%, the AUC was 0.64, with a sensitivity of 50.00% and specificity of 75.60%. When the GH suppression rate was 90.71%, the AUC was 0.78, with the sensitivity of 83.30% and specificity of 70.00% in predicting a good GH and IGF-Ⅰ response. Compared with GH/IGF-Ⅰ non-responders, GH/IGF-Ⅰ responders displayed lower nadir GH during OST, higher GH suppression rate and IGF-Ⅰ reduction rate, and lower ratio of IGF-1 to ULN( P<0.05). Conclusion:GH suppression rate during the OST is a valuable predictor to evaluate the efficacy of SRLs in patients with acromegaly, with the highest sensitivity and specificity when the cutoff value is 90.71%.

Objective:To explore the application of the semi-flipped classroom combined with knowledge point auction learning method in the theoretical teaching among stomatological students and its effectiveness.Methods:Undergraduates from four classes at Guanghua School of Stomatology, Sun Yat-Sen University were taken as research subjects. Students from two classes ( n=198) were taught using the semi-flipped classroom combined with the knowledge point auction learning method, while students from the other two classes ( n=172) were taught with the regular classroom teaching method as controls. Classroom quizzes were used to compare the two classes' mastery of important and difficult points, and a questionnaire was used to investigate students' feedback on the class outcomes. SPSS 22.0 was used for the independent samples t-test. Results:The mean test score of the experimental class was higher than that of the control class (88.51±11.02 vs. 80.40±8.53). The results of the questionnaire showed that students' interest in the course, comprehension and absorption of knowledge points, degree of satisfaction with the class, and mastery of the contents in sections in the experimental class were significantly higher than those in the control class (7.28±1.51 vs. 9.10±0.73, 6.92±1.44 vs. 8.69±1.62, 6.09±1.87 vs. 7.61±1.46, 6.40±1.04 vs. 7.70±0.86 ).Conclusions:The semi-flipped classroom combined with the knowledge point auction learning method is innovative and achieves good teaching outcomes. It holds promise for wider use in the theoretical teaching of various clinical subjects. To explore the application of the semi-flipped classroom combined with knowledge point auction learning method in the theoretical teaching among stomatological students and its effectiveness.

Objective: To observe the effect of combining whole body vibration with botulinum neurotoxin A injections on tiptoe and the gross motor function of children with spastic diplegic cerebral palsy. Methods: Sixty spastic diplegic children with tipped foot aged between 2 to 5 were equally divided into a control group and an experimental group randomly. The control group received 3 IU/kg botulinum neurotoxin A injections to the medial and lateral heads of the gastrocnemius muscle. Then 5 daily courses of conventional training were administered 5 days a week for 3 weeks beginning 24 hours after the injections. The experimental group additionally received 2min of whole body vibration 3 or 4 times per day with one-minute rests, 5 days per week for 5 weeks. All of the children were assessed before the experiment and 1, 3 and 6 months later using the modified Tardieu scale (MTS) and the R1 and R2 ankle and dimensions D and E of the gross motor function measurement scale (GMFM-88). Results: There were no significant differences between the two groups before the treatment. Afterward, the average MTS, R1, R2 and GMFM-88 scores of both groups were significantly improved. The average MTS, R1 and R2 scores of the experimental group after treatment were significantly better than the control group′s averages. The average GMFM-88 score of the experimental group was not significantly different from that of the control group after 1 month, but after 3 and 6 months significant differences emerged. Conclusion Whole body vibration improves the effectiveness of botulinum neurotoxin A injections in relieving tiptoe and improving the gross motor function of children with spastic diplegic cerebral palsy.