Objective: To study caffeine and/or placebo implication as countermeasures during sleep deprivation (SD). Methods: A double-blind, within-subjects and counterbalanced design was employed and five trials were conducted. Subjects were exposed to 30h SD in each trial. No medicine was administrated in control trial while placebo 200mg, caffeine 200mg, caffeine 400mg and the combination of caffeine (200mg) and placebo (200mg) were administered, respectively in the other trials. Letter Cancellation Test was used to assess the alertness. Result: The correct concealing numbers per minute (CCNM) of the combination of caffeine and placebo (62.36?7.31/min), caffeine 400mg(55.88?6.54/min) and caffeine 200mg (59.48?6.52/min) were more than that of control(46.80?5.35 /min), P0.05). Conclusion: Caffeine and the combination of caffeine and placebo expectation can increase alertness.

Objective To clone human papillomavirus type 16 genome from Anhui province, analyze genome se-quence of HPV16 and study its genomic characteristics. Methods Five pathological specimens of cervical cancer from Anhui province were collected and the total DNA was extracted. Specific primers were designed to clone HPV16 genome in four fragments. The sequence of four fragments was assembled manually and nucleotide sequence was analyzed after sequencing. Results A cervical pathological sample containing HPV16 was detected and the genome sequence with full length of 7 906 nts (GenBank accession number:KC935953) was obtained. Sequence alignment of genome nucleotide sequence showed that HPV16 of Thailand and HPV16 of Japan were more similar to HPV16 of Anhui (HPV16-Anhui) than other HPV genome nucleotide sequence, their similarity reached 99. 5%. Phylogeny tree analysis demonstrated that HPV16-Anhui and other 7 HPV16 clustered into a single branch. Con-clusion HPV16 genome nucleotide sequence is obtained from Anhui province for first time with great significance for further understanding of HPV16 variation from Anhui even east China.

Objective To analyze drug resistance data of Enterococcus faecalis and Enterococcus faecium,submitted by member units of Chongqing bacterial drug resistance monitoring network,and to provide the basis for our city effective application of antimicrobial agents and the reference.Methods Target bacteria identification and drug susceptibility test were performed by member units,according to the national technology scheme of bacterial drug resistance monitoring network and the results were determined according to standards published by Clinic and Laboratory Standard Institute(CLSI) in 2015.WHONET5.6 software was used to analyze drug susceptibility,and drug resistance difference was analyzed by using SPSS21.0 software.Results A total of un-repeated 1 811 strains of Enterococcus faecalis and 1 601 strains of Enterococcus faecium,accounting for 13.1% of all positive strains.The resistant rates of the two kinds of bacteria to vancomycin were 0.5% and 1.8%,to rinathiazole amine were 2.5% and 0.5% respectively.Tigecycline resistant strains were not founded.The resistant rate of Enterococcus feaclis to ouinupristin/dalfopristin was 90.1%,to tetracycline was 78.8%,to high concentration of gentamicin was 43.0%,to penicillin,ampicillin and nitrofurantoin was less than 7%.Except ouinupristin/dalfopristin and tetracycline,the resistant rate of Enterococcus faecium to the other drugs were significantly higher than Enterococcus faecalis(P<0.05).Strains isolated from children and adult patients,Intensive Care Unit(ICU) and un-ICU patients were with differences of drug resistance(P<0.05).Conclusion Most of Enterococcus infection could be caused by Enterococcus faecalis and Enterococcus faecium.Monitoring of drug resistance might be helpful for rational and effective usage of antimicrobial agents.

Objective To analyze the imaging manifestations of chondromyxoid fibroma,so as to improve diagnostic accuracy.Methods The X-ray,CT and MRI manifestations of 8 cases with chondromyxoid fibroma confirmed by surgical pathology were analyzed retrospectively.Results All of 8 cases were in the long tubular bones.X-ray showed oval,well defined,eccentric,radiolucent lesion with surrounding sclerosis.The thick dense bony or coarse reticular septation were seen in 6 cases.CT scan showed osteolytic,surrounding sclerosis,and 1 case with foci of calcification.MRI images showed a low or medium signal on T1WI,high signal on T2WI,1 case with a equal T1WI and slight high T2WI signal intensity peripheral rim around.Two cases with diffused enhancement on T1WI after intravenous injection of gapentetate acid meglumine injection and a peripheral liner enhancement in 1 case.Conclusion Chondromyxoid fibroma has certain imaging characteristics,but should be combined with X-ray,CT and MRI to differentiate from other bone tumors with similar imaging manifestations.

Objective To study the pharmacokinetic features of silibinin from Jiqi Injection(JI) in Beagle dogs,and to observe the effect of Panax notoginseng saponins,another active component in JI,on pharmacokinetics of silibinin. Methods The Beagle dogs received intravenous injection of JI and silibinin,and then its plasma sample was collected in different time. The plasma samples of Beagle were prepared by hydrolysis with sulfatase-? glucuronidase complex enzyme and liquid-liquid extraction with aether. A high-performance liquid chromatographic method was developed to determine the plasma concentration of silibinin,and the pharmacokinetic parameters were performed by BAPP2.3 program. Results The pharmacokinetics of two tested preparations met with two-compartment model. There were not significant differences between pharmacokinetic parameters of JI and that of Silibinin Injection. Conclusion The silibinin in Jiqi Injection has a fast in-vivo clearance rate after intravenous injection,and Panax notoginseng saponins have no effect on its pharmacokinetic parameters.

Objective To measure the change of serum interleukin-23(IL-23) level before and after treatment with glucocortcoid and analyze the correlations between levels of IL-23 and IL-4,IFN-?,IL-17,and explore the role of IL-23 in bronchial asthma.Methods Thirty femal BALB/c mice were randomly divided into three group(n=10): group A(asthma model),group B(corticosteroid treatment) and group C(normal control).All mice were killed 24 h after final OVA challenge.The blood samples were obtained for measurements of serum IgE,IL4,IFN-?,IL-17and IL-23 levels by enzyme-linked immunoabsorbent assay(ELISA).Results The mouse asthma model appeared ethological changes specific to asthma.The level of OVA specific IgE in serum increased.The level of serum IL-4 increased and the level of IFN-? decreased.Correlation analysis showed negative relationship between IL-4 and IFN-?(r=-0.859,P

Objective To design a new animal model for end-to-side anastomosis of peripheral nerves and analyze the efficiency. Methods The experiment involved 28 Wistar rats,of which the left legs were set as experimental group and the right ones as control group based on mode of nerve anastomosis.In experimental group,the tibial nerves were cut off for anastomosis of the proximal end of the tibial nerves with the distolateral side of the common peroneal nerve.While in control group,the common peroneal nerves were cut off to anostmose the distal end of the peroneal nerve with the distolateral side of the tibial nerves.Electrophysiological examination was done three months later to observe and compare wave amplitude,latent period and maximal wave amplitude at set stimulus volume in both groups and compare the fiber number at distal and proximal ends of the common peroneal nerves. Results There was no significant statistical difference in regard of amplitude,latent period and maximal wave amplitude in both groups.However,the fiber number at distal end of the stoma was much more than that at proximal end in the experimental group,with statistical difference(P

Objective To evaluate the effects of 131I treatment for Graves hyperthyroidism patients with leucopenia and the alteration of WBC levels after treatment.Methods A total of 257 Graves hyperthyroidism cases were retrospectively studied after 131I treatment.Based on baseline WBC count,119 cases with WBC count ＜4.0 × 109/L before 131I treatment were diagnosed with leucopenia and 138 cases had normal WBC.There were no significant differences in age,weight of thyroid,131I uptake rate in 24 h,dose of 131I and course of the disease between the two groups (all t ＜ 0.972,all P ＞ 0.05).WBC,lymphocyte,neutrophil and platelet counts were recorded before and 1,3,6 and 12 months after 131I therapy.The therapeutic effects were graded as clinical cure,improvement,invalidation and hypothyroidism.Statistical analyses,including independent samples t test,x2 test and one-way analysis of variance,were performed using SPSS 13.0.Results The WBC levels in the leucopenia group were (3.49 ± 0.43) × 109/L,(4.06 ±0.98) × 109/L,(4.20 ±1.04) × 109/L,(4.37 ±0.93) × 109/L and (4.88 ± 1.20) × 109/L before 131I treatment and 1,3,6,12 months after 131I treatment,respectively; while,those in the normal WBC group were (5.70 ± 1.08) × 109/L,(5.50 ± 1.14) × 109/L,(5.74 ±0.99) × 109/L,(5.95 ± 1.14) × 109/L and (6.07 ± 1.17) × 109/L,respectively.There was no statistically significant difference of WBC levels before and 1 month after 131 I treatment (t =1.662,P ＞ 0.05) in the normal WBC group,but WBC levels at those timepoints were significantly different in the leucopenia group (t =3.816,P ＜ 0.05).In the leucopenia group,there was no significant change of lymphocytes before and after 131I treatment,while the average neutrophil count showed an increasing trend during the 1,3,6 and 12 months after 131I treatment (F =40.583,t:1.468-11.264,all P ＜ 0.05).The average platelet counts at 6 and 12 months after 131I treatment were (187.80 ± 36.03) × 109/L and (206.88 ± 26.04) × 109/L respectively,which were higher than that before 131I treatment (F =9.735,t =2.604,4.892,all P ＜0.05).In the normal WBC group,there were no statistical differences of WBC changes before and after 131I treatment except for a lower lymphocyte count at 1 month after 131I treatment than that at baseline ((1.79 ± 0.37) × 109/L vs (1.99 ±0.63) × 109/L;F =12.868,t =3.284,both P ＜ 0.05).The treatment effects of the two groups were not significantly different (x2 =0.739,P ＞ 0.05).Conclusions 131I treatment presents similar therapeutic effects on Graves hyperthyroidism patients with leucopenia and those with normal WBC levels.WBC levels in patients with leucopenia may recover to baseline during the post-treatment follow-up.Thus 131I treatment is a safe and effective method for Graves hyperthyroidism patients with leucopenia.

Objective To explore the optimal time for clinical interventions on full-term or nearterm pregnant women with premature rupture of membranes(PROM). Methods A retrospective study was conducted on clinical data of 903 healthy, full-term or near-term (gestational age ≥ 35 weeks), singleton pregnant women with PROM, who admitted to our hospital from January 1, 2005 to December 31, 2009. All subjects were divided into 6 groups: women in group 1 were those fell into spontaneous labor within 6 h after PROM (n=269, 29.8%); women in group 2 were in spontaneous labor between 6 to 12 h after PROM (n= 161, 17.8%) ; women in group 3 were in spontaneous labor at 12 to 24 h after PROM (n = 75, 8. 3%); In group 4 oxytocin was administered for induction for women not in labor at 6 to 12 h after PROM (n= 124, 13.7%) ; Group 5 included those women who were not in labor at 12 to 24 h after PROM and oxytocin induction was offered (n=98, 10. 9%);Group 6 consisted of those women who were not in labor over 24 h after PROM and oxytocin induction was offered (n = 176, 19. 5%). The maternal and neonatal complications and outcomes of all pregnancies were reviewed and compared. Results Among the 903 cases, the total number of women without any medical interventions was 681, among which 505 (74.2%) fell into spontaneous labor, including 430 (63.2%) within 12 h with a cesarean section rate(CSR) of 20.7%(89/430), 75 (11.0%) at 12-24 h after PROM with the CSR of 50.7% (38/75), and 176 (25.8%) did not go into labor spontaneously (group 6) with a CSR of 70. 5% (124/176). (2) Among the 930 women, 398were induced at 6, 12 and 24 h after PROM. The CSR, incidence of intrauterine infection, puerperal morbidity and perinatal mortality rate in group 5 were significantly lower than those of group 6 [CSR:52.0%(51/98) vs 70. 5%(124/176); intrauterine infection: 6. 1%(6/98) vs 22. 7%(40/176);puerperal morbidity: 6. 1% (6/98) vs 19.9% (35/176); perinatal mortality: 7. 1% (7/98) vs 20.5%(36/176),all P＜0. 01], but no difference was found in the incidence of postpartum hemorrhage [1.0%(1/98) vs 4.0%(7/176), P＞0.05]. Conclusions Intervention is not recommended within 12 h after PROM in full term or near term gravidas. However, induction of labor should be offered thereafter. However, the CSR and incidence of maternal and neonatal complications rise up if induction of labor postponed to 24 h after PROM.

Objective To apply the techniques of CAD/CAM in the repair of defects and correction of deformity on the jaw bones so as to improve the accuracy and controllability of operations.Methods With CAD techniques,3D bone model was reconstructed based on CT images.Then,a repairing model was created with mirror operation on original model.The physical models of original model and repairing model were fabricated through rapid prototyping.Based on physical models,operation plan and model surgery with pre-forming plate could be designed.Results The designed operation plan and pre-forming plate techniques of CAD/CAM were successfully applied in eight patients,with satisfactory results.Conclusions With techniques of CAD/CAM,reconstructing and fabricating the original bone model and mirror repair model are very helpful for designing operation plan for maxillofacial surgery.It also can improve the surgery accuracy and save operation time obviously.