Brain ; metabolism ; Drugs, Chinese Herbal ; pharmacology ; Gene Expression ; Neuropeptides ; biosynthesis ; genetics ; Proto-Oncogene Proteins c-fos ; biosynthesis ; genetics ; Proto-Oncogene Proteins c-jun ; biosynthesis ; genetics ; RNA, Messenger ; biosynthesis ; genetics

OBJECTIVE: To study the genetic characteristics and phylogenetic relationships of dandelions of 20 populations by sequencing ITS sequence. METHODS: The ITS sequence was amplified by PCR with universal primer of ITS, and the ITS sequence of the PCR products was directly sequenced after purification. RESULTS: The total length of ITS sequence of different samples was 711 bp. The ITS sequence was divided into three fragments; ITS1 was 225 bp, 5.8S was 262 bp and ITS2 was 226 bp. In all samples 5.8S was comparatively conserved, while ITS1 and ITS2 had higher diversity in base sequence among the various specimens. CONCLUSION: ITS sequence can be used to analyze the phylogenetic relationships of different varieties of dandelions.

Objective To investigate the value of FDG PET-CT in the outcome assessment and prognostic evaluation for recurrent nasopharyngeal carcinoma (rNPC).Methods From January 2008 to December 2013,92 rNPC patients were treated in our center,who were histologically or radiologically diagnosed and re-staged according to the 2008 clinical staging system for nasopharyngeal carcinoma in China.The numbers of patients in stage Ⅰ,stage Ⅱ,stage Ⅲ,and stage Ⅳ were 8,11,39,and 34,respectively.According to the recurrent T stage (rT),the numbers of patients in rT1,rT2,rT3,and rT4 were 10,11,38,and 33,respectively.Twenty-eight patients had recurrence in the neck lymph nodes.All patients underwent pretreatment FDG PET-CT for the whole body or head/neck,and treated by radiotherapy with or without chemotherapy.The relationship of maximum standard uptake value (SUVmax) and clinical factors with clinical outcomes was analyzed.The Kaplan-Meier method was used to calculate overall survival (OS),disease-free survival (DFS),local recurrence-free survival (LRFS),regional recurrence-free survival (RRFS),and distant metastasis-free survival (DMFS).The log-rank test was used for survival difference analysis and univariate prognostic analysis.The Cox model was used for multivariate prognostic analysis.Results The 3-year OS,DFS,LRFS,RRFS,and DMFS were 33.6％,32.1％,32.8％,31.8％,and 33.7％,respectively.The median SUVmax was 8.35 (2.7-21.5).The SUVmax of 7.0 was taken as the optimal cut-off value for all patients.Patients with SUVmax ≤7.0 had a significantly higher 3-year OS rate than those with SUVm ax ＞7.0 (42.0％ vs.28.3％,P=0.019).The univariate analysis revealed that patient age,SUV and rN were significantly associated with OS (P=0.023,0.019,and 0.002).The multivariate analysis showed that SUVmax and rN were significant influencing factors for OS,DFS,and DMFS (HR=1.68,P=0.045 and HR=2.23,P=0.003;HR=1.67,P=0.042 and HR=2.39,P=0.001;HR=1.77,P=0.025 and HR=2.40,P=0.001).Conclusions SUVmax may be one of the useful prognostic factors for OS,DFS,and DMFS in rNPC patients.

18F-fluorodeoxyglucose positron emission tomography-computed tomography (18F-FDG PET-CT) is the integration of functional imaging and anatomic information,which is found to be particularly valuable in TNM staging,tumor volume delineating,post-treatment assessment,identification of recurrent and residual nasopharyngeal carcinoma (NPC).The combination of 18F-FDG PET-CT with other image technologies,different tracer agents,and specific molecular biomarkers can improve the application value of 18F-FDG PET-CT in NPC.

Objective:To investigate the effect of Vitapex paste in the root canal for deciduous teeth with chronic apical periodontitis.Methods:200 children with chronic apical periodontitis were selected and divided into two groups.The observation group (108 cases)was given Vitapex paste.The control group (92 cases) was given Zinc oxide iodoform paste.The effect of Vitapex paste in root canal for deciduous teeth with chronic apical periodontitis was evaluated by filling quality after 1 month'treatment,the VAS scores before and after treatment,long-term curative effect were compared between two groups.Results:After 1 month'treatment,the suitable filling rate of observation group was higher than that of the control group(P＜0.05).There was no statistical significance in the VAS scores between two groups (P＞0.05).After 1 week'and 1 month'treatment,the pain feeling were alleviated in two groups and significantly lighter in the observation group(P＜0.05).After 6 months' follow-up,the success rate was 96.3％ in the observation group and 87.0％ in the control group,the success rate of observation group was higher than that of the control group (P＜0.05).Conclusion:The filling process of Vitapex paste was simple and easy,which had a good therapeutic effect on chronic apical periodontitis of deciduous teeth and could relieve the toothache of patients.

Objective To identity the risk factors for supine hypotension syndrome (SHS) after spinal anesthesia in parturients.Methods A total of 204 parturients,scheduled for elective cesarean section,were divided into either control group or SHS group depending on whether or not SHS (systolic blood pressure [SBP] in the upper extremity decreased by ＞ 30 mmHg or decreased to ＜ 80 mmHg) developed after spinal anesthesia.The baseline patient characteristics such as age,body height and weight,gestational weeks and biparietal diameter were recorded.Supine stress test (SST) was performed.Heart rate,blood pressure in upper and lower extremities,perfusion index,pleth variability index and intravesical pressure were recorded when patients were in supine position and in left lateral position before spinal anesthesia.The risk factors of which P values were less than 0.05 would enter the multi-factor logistic regression analysis to stratify the risk factors for SHS.Results Among the 204 patients,99 cases developed SHS after spinal anesthesia,and the incidence was 48.5％.Logistic regression analysis showed that maternal body weight,biparietal diameter,the difference in SBP between upper and lower extremities in supine position,the difference in SBP in upper extremities caused by changing position and positive SST were risk factors for SHS after spinal anesthesia (P＜0.05 or 0.01).Conclusion Maternal body weight,biparietal diameter,the difference in SBP between the upper and lower extremities in supine position,the difference in SBP in upper extremities caused by changing position and positive SST are risk factors for SHS after spinal anesthesia in parturients.

Objective To investigate the influence of lipid metabolic markers on hip osteoarthritis (OA) and the correlation with the pain of hip.Methods In this retrospectively cross sectional analysis,393 subjects fufilling the inclusive criteria were continuously included from June 2013 to September 2014.The presentation of hip X-ray of subjects were classified into OA group and non-OA group in terms of Kellgren-Lawrence grading scale,the subjects with Kellgren-Lawrence (K-L)≥2 was classified into OA group.The average of age in total was (62±9) years.There were 183 males and 210 females,the number of patients with OA was 182.There were 210 patients with hypertension and 118 patients with diabetes while the number of smoking patients was 74.The demographic information,risk factors,blood pressure,blood glucose,lipid metabolic markers were analyzed.Differences in proportions were compared using the Chi-square test.Difterences in continuous variables were tested for statistical significance using t test analysis.VAS score was used to evaluate the severity of hip pain.Independent risk factors were confirmed by using multiple logistic regression analysis.The correlation between the risk factors and severity of hip pain was analyzed by Spearman correlation analysis.Results Statistically significance existed in age (t=-4.849),sex (x2=8.946),BMI (t=-4.794),hypertension (x2=4.751),smoking (x2=7.062),metabolic syndrome (x2=34.406),apolipoprotein A1 (t=2.352),apolipoprotein B (t=-6.870),high density lipoprotein cholesterol (t=2.519),triglyceride (t=-4.652) and ApoB/ApoA1 ratio (t=-4.901) between OA group and non OA group.Age [OR =1.060(1.033,1.086)],metabolic syndrome [OR=3.682(2.284,5.938)] and ApoB/ApoA1 ratio [OR=5.743(2.393,13.785)] were the independent risk factors.The ApoB/ApoA1 ratio had positive correlation with the severity of hip pain(r=0.379).Conclusion ApoB/ApoA1 ratio is the independent risk factor of hip osteoarthritis,and has positive correlation with the severity of hip pain.The ApoB/ApoA1 ratio should be monitored in hip osteoarthritis patients in clinical work,to get the relief of pain and improve hip osteoarthritis.

Objective To investigate the diagnosis and treatment of the patients with lung cancer hospital-ized in affiliated hospital of Hainan Medical College.Methods A retrospective study was performed from January 1st 2005 to December 31th 2009 in the Hospital.201 patients were enrolled in this study.Results The average onset age of patients with lung cancer was 66 years old.No difference in different gender.The incidence of male was 72.1%, which was higher than of female(27.9%).Male to female ratio was 2.6:1.70.3% of male patients with lung cancer had a history of smoking.146 cases(72.6%)were diagnosed by clinical data,only 55 cases(27.4%)were diagnosed by histopathology.134 cases(66.7%)hadn′t indications for surgery.only 17 cases(25.4%)agreed to have surgery among 67 cases (33.3%)with indications for surgery,50 cases(74.6%)didn't agree to have surgery.34 cases (16.9%)had no indications for chemotherapy.40 cases(24.0%)agreed to have chemotherapy among 167 cases (83.1%)with indications for chemotherapy,but only 14 cases(35.0%)had completed 4 to 6 cycles of chemotherapy, and 26 cases(65.0%)hadn't completed 4 to 6 cycles.8 cases(4.0%)agreed to have radiotherapy.3 cases(1.5%) agreed to have targeted therapy.3 cases (1.5%)transfered to other hospital.Conclusion The ratio of lung cancer patients in male is higher than female in the hospital.smoking is closely related to male patients.Clinical diagnosis rate of patients is high,whereas histopathologic diagnosis rate is low.The rate of the intervention that patients accepted is low and many patients give up available management after the diagnosis is made.

Objective To explore the method of the major hospital indexes examination using clinical pathway as an opportunity.Methods Based on the material of our hospital from 2008 to 2010,reference the data of the same level hospital in Xinjiang Uygur Autonomous Region,we set the benchmark and formulated the examination standard of three examination indexes:average length of stay (ALOS),average hospitalization expense and drug proportion.Meanwhile,we took the subentry incentives to give the corresponding reward to clinical departments according to the decreases rate compared with the benchmark monthly.Results ALOS,average hospitalization expense and drug proportion of department and the whole hospital were obviously decreased compared with the same period last year,and the differences were statistically significant (Medical system:t =27.479,14.462,11.362,all P ＜ 0.01 ; Surgical system:t =18.944,16.029,12.071,all P ＜ 0.01).Conclusion After using the examination methods and combining clinical pathway,the effects are obvious,which can effectively shorten ALOS,reduce average hospitalization expense and drug proportion,so as to relieve the patients' economic burden.

Objective This experiment was to analyze the impacts of lip -reading information on hearing im-paired subjects'sentence recognition got in noisy environment in comparing with the results obtained from the listen-ing and audio -visual testing ways .Methods Fourteen moderate hearing impaired subjects with 55 .4 ± 9 .1 years old were postlingual deafness .Their sentence recognition ability were tested in noisy environments with speech and audio-visual information separately (speech intensity :30 dB SL ,SNR:5 dB) .Results Compared with the sentence recognition administered in the speech information condition 73 .79% ± 7 .95% ,the subjects sentence recognition un-der the audio -visual condition was 86 .57% ± 5 .42% ,which was significantly different (P<0 .05) .Conclusion In noisy environment ,lip-reading can improve hearing impaired patients’ sentence recognition obviously .