Objective To investigate the factors affecting pulse transit time during anesthesia. Methods Sixty cases of gastrointestinal surgery under general anesthesia were investigated.The pulse transit time (PTT),BP and HR were measured at the time before and after intravenous anes-thesia induction,and at the time before and after the injection of vasoactive drugs,respectively. Results Compared to at the time before injection,HR,SBP and DBP increased significantly,and PTT decreased significantly (P <0.01 )at the time after injection of atropine and ephedrine.Com-pared to at the time before injection,HR and PTT increased significantly,while SBP and DBP de-creased significantly (P < 0.01 )at the time after injection of nicardipine.While HR and PTT de-creased significantly,and SBP,DBP increased significantly (P <0.01 )with the injection of pheny-lephrine.Obvious negative correlation between SBP and PTT was observed before and after induc-tion;meanwhile,only weak correlation between DBP and PTT was observed,and no obvious correla-tion between HR and PTT was detected.SBP and PTT were well negatively correlated with the injec-tion of atropine,ephedrine,nicardipine or phenylephrine.Conclusion All the PTT changes during anesthesia were found to be negatively correlated with the systolic blood pressure.

Objective To evaluate the respiration-induced dosimetric variance in 3DCRT for midthoracic esophageal carcinoma, in order to guide the radiation oncologist to choose the expansion margin. Methods Ten patients with mid-thoracic esophageal carcinoma were scanned by multi-spiral CT simulator respectively in free breathing ( FB), breath-hold after normal inspiration and expiration ( IBH and EBH )with the same scanning range. Then the CT images of three series were transferred to the treatment planning system. The target volume was outlined following the same standard. Plan1 was designed in the images of FB and transported completely to the images of IBH and EBH as Plan2 and Plan3 respectively to observe the dosimetric variance in target volume. Results For GTV, there was a statistical difference only in V100 of the three plans ( H = 6.423, P = 0.040 ) and no significant difference was found in other indexes. For CTV, the V100 and V95 were better in Plan1 (F=3.992, P=0.030; H=9.920, P=0.007) and no significant difference was found in other indexes. While ()TV, the Dmin, V100 and V95 was better in Plan1 ( F = 3.677, P = 0.039; F = 4.539, P = 0.020; H = 6.846, P = 0.033 ) and no significant difference was found in other indexes. There were no significant differences in all the indexes for the spinal cord and lung in the three plans. Conclusions The change in dose distribution was not so much with the standard expansion. It can meet the needs of clinical treatment.

Objective To evaluate the respiration-induced target volume motion in 3D-CRT for mid-thoracic esophageal carcinoma in order to guide the radiation oncologist to choose the expansion marginfor ITV.Methods Ten patients with mid-thoracic esophageal carcinoma were scanned by multi-spiral CTsimulator respectively in free breathing(FB),breath.hold after normal inspiration and expiration(IBH and EBH)with the same scanning range.Then the CT images of three series were transfefred to the treatmentplanning system.The target volume was outlined following the same standard.The motion of the centerpoint of GTV,the center point of each slice of GTV and the edge of the GTV in selected slice weremeasured respectively to obtain the comprehensive value of GTV motion。in order to find the appropriate IMvalue according to the 95％confidence interval of the GTV motion.Results①The GTV motion betweenIBH and EBH was(0.19±0.16)cm in the left.right direction,(0.54±0.19)cm in the cranial andcaudal irection.and(0.16±0.14)cm in anterior.posterior directions for the center of GTV,.For thecenter point of each slice of GTV.they ere(0.19±0.15)cm,(0.54±0.16)cm,(0.16±0.13)cm in three directions above.respectively.For the edge of the GTV in selected slice.they were(0.26±0.19)cm,(0.54±0.18)cm,(0.24±0.19)cm,respectively.The comprehensive value of GTV motion between IBH and EBH was(0.23±0.17)cm,(0.54±0.17)cm,(0.21±0.17)cm.respectively.The 95％confidence interval was 0.21-0.25 cm.0.53-0.56 cm and 0.19-0.22 cm in three directions.②The direction of GTV motion：No motion was noticed in 8.2％.while 73.3％to the right side and 18.5％to the left side in the left-right direction when IBH were compared with EBH.100％were moved to caudal in the the cranial and caudal direction[(0.54±0.17)cm].In the anterior-posterior direction,no motion was noticed in 8.2％,while 16.6％to the posterior and 75.2％to the anterior when IBH were compared with EBH.③The GTV motion was correlated with the vafiance of 1ung volumes in IBH-EBH(r=0.683,P=0.032)and not with GTV volume and length.Conclusions Respiration can induce target volume motion in 3 DCRT for mid-thoracic esophageal carcinoma.Compared to EBH.the GTV tends to move to the caudal,the anterior and the ight side in IBH.

Objective To design and develop a cardiovascular automatic feedback control instrument for rescuing the critical patients.Methods Ten dogs used this kind instrument and the effects were obserred.Resuts The experiment of the dogs showed:the computer collected samples promptly,accurately and rapidly,and the instrument could help us to reach the expected goal.Conclusion In animal experiments,it showed that the whole cycle,from obtaining blood pressure to adjusting the amounts of medicine through feedback,was shortened.The calculating was accuratel and curative effect was reliable.This instrument is wait to be apprnsed by clinic.

Objective:To study effects of neuroligin (NLG) on the proliferation and apoptosis in human neuroblastoma SH-SY5Y cells.Methods:The SH-SY5Y cells were cultured in vitro for 24 hours,and then transfected with NLG siRNA at dose of 50,100,200 μmol/L,respectively.MTT procedure was used to detect the cell proliferation,and expression levels of apoptosis gene including Bax or Bcl-2 and Bcl-xl were measured by RT-PCR.Results:Compared to control groups proliferation of SH-SY5Y cells were distinctly inhibited after NLG siRNA transfection accompany with a dose-dependent,which was caused by activation of apoptosis.Conclusions:NLG protect neuron by inhibiting apoptosis.

Objective To investigate the epidemiological and clinical characteristics of measles in patients of different age groups in Northeast China in 2014.Methods The clinical data of patients with measles in ten hospitals of infectious diseases in Northeast China from January 2014 to June 2014 were collected.Patients were divided into <16 age group and ≥16 age group, and the epidemiology , clinical characteristics, treatment and prognosis of all patients were retrospectively reviewed .SPSS 17.0 was used for data analysis.Results There were 1 401 patients with measles, in which 402 were <16-year old, and 999 were ≥16-year old.Clinical manifestations were mainly maculopapule (100.0%), fever (84.58%), cough (85.80%), Koplik’ s spot (73.23%), pharyngeal hyperemia (71.23%), diarrhea (43.97%), expectoration (40.97%), tears (39.40%) and runny nose (30.55%).The incidences of Koplik’s spot, sputum, pharyngeal hyperemia and diarrhea in <16 age group were lower than those in ≥16 age group (χ2 =8.364, 29.768, 10.953 and 6.701, P<0.05 or <0.01); while the incidence of runny nose was higher than that in ≥16 age group (χ2 =6.703, P<0.05).Abnormalities were found in blood routine examination, C-reactive protein (CRP), liver and kidney function, serum electrolyte levels, myocardial enzymes, and so on.Increasing in WBC, PLT and creatine kinase isoenzyme (CKMB), and decreasing in WBC were observed in 38(9.45%), 122(30.35%), 279(69.40%) and 105(26.12%), patients in <16 age group, which were higher than those in ≥16 age group [45(4.5%), 14(1.40%), 347(34.73%) and 202(20.22%)], and the differences were of statistical significance (χ2 =12.593, 274.033, 139.385 and 5.830, P<0.05 or P<0.01).Increasing in alanine aminotransferase (ALT), CRP, total bilirubin level (TBil), creatine kinase (CK), and decreasing in albumin (Alb), K+, Na+, Cl-were observed in 70(17.41%), 7(1.74%), 38(9.45%), 7(1.74%), and 214(53.23%), 59(14.68%), 45(11.19%), 94(23.38%) patients in <16 age group, which were lower than those in ≥16 age group [668(66.87%), 89(8.91%), 277(27.73%), 714(71.47), and 268(26.83%), 339(33.93%), 642(64.26%), 450 (45.05%)], and the differences were of statistical significance (χ2 =281.230, 23.073, 50.687, 159.740, and 14.674,114.286, 44.268, 271.546, P<0.01).Laryngitis and pneumonia were the most common complications.The incidence of laryngitis in <16 age group was 12.69% (51/402), which was higher than that in ≥16 years group (93/999, 9.31%,χ2 =3.545, P<0.05);while the incidence of spot shadows demonstrated by X-ray in <16 years group ( 72.89%, 121/166 ) was higher than that in ≥16 years group (265/445, 59.55%,χ2 =9.249, P<0.01).Conclusions There are differences in clinical features of measles in patients between <16 age group and ≥16 age group.Basic immunization in children and revaccination in adults should be enhanced to control the epidemics of measles .

Objective To evaluate the diagnostic value of the heparin-binding protein (HBP),procalcitonin (PCT),C-reactive protein (CRP),white blood cell (WBC) in respiratory tract bacterial infection.Methods 66 respiratory tract bacterial infection patients,37 respiratory tract non-bacterial infection patients and 39 control group in the Third Xiangya Hospital from October 2015 to March 2017 was selected as objects in this prospective study.The levels of HBP,PCT and CRP in blood of the objects were tested with ELESA,immunofluorescence assay,immunoturbidimetry respectively;WBC counts were taken by Sysmex XE-5000 blood analyzer.The difference among the three groups was analyzed by Student's t test,one-way ANOVA or Wilcoxon test.Receiver operating characteristic curve was utilized to analyze the diagnostic value of HBP,PCT,CRP and WBC in respiratory tract bacterial infection.Results The plasma level of HBP were 36.30 (7.78-89.36) ng/ml,5.57 (4.37-8.23) ng/ml,2.84 (1.53-6.51) ng/ml in respiratory tract bacterial infection group,respiratory tract non-bacterial infection group and control group respectively.The socre of PCT were 0.08 (0.04-0.83) ng/ml,0.09 (0.04-0.30) ng/ml,0.04 (0.03-0.08) ng/ml.The socre of CRP were 56.20 (19.33-76.23) mg/L,34.40 (2.15-83.95) mg/L,(2.20 ± 0.99) mg/L.The socre of WBC count were (10.59 ±4.58) × 109/L,8.40 (5.80-11.88) × 109/L,(6.14± 1.31) × 109/L.There were statistically significant differences in HBP scores between respiratory tract bacterial infection group and respiratory tract non-bacterial infection group or control group (Z =-4.828,P ＜0.001;Z =-5.685,P ＜ 0.001).There were no statistically significant differences in PCT,CRP and WBC scores between respiratory tract bacterial infection group and non-bacterial infection group (F =0.045,P ＞ 0.05;F =0.100,P ＞ 0.05;F =2.417,P ＞ 0.05),but significant differences between respiratory tract bacterial infection group and control group (Z =-2.881,P ＜ 0.05;Z =-6.595,P ＜ 0.001;t =6.499,P ＜ 0.001).The area under curve (AUC) of HBP,PCT,CRP and WBC diagnosing respiratory tract bacterial infection was 0.89,0.69,0.95 and 0.85 respectively.The AUC of HBP differential diagnosising was 0.80.Conclusion HBP can be used as an efficient supplementary indicator for respiratory tract bacterial infection,the differential diagnostic value is superior to PCT,CRP and WBC.