Objective To assess left ventricular systolic and diastolic function in patients with hypertrophic cardiomyopathy(HCM) with the aid of pulsed Doppler tissue imaging (DTI) to measure the four sides of mitral annular. Methods Thirty subjects with HCM and Twenty five age and sex matched controls were performed 2D and Doppler echocardiography . Two groups were studied with pulsed tissue Doppler imaging of the 4 sides of the mitral annulus (septal, lateral, inferior, anterior) in 4 and 2 chamber views. The velocities of systolic wave(Sa)、early diastolic filling wave (Ea)、late filling wave (Aa) and isovolumetric relaxation time were measured by DTI. Results Compared with normal control group, HCM group shows: (1) conventional data: LV wall thickness and mass indices were significantly greater. There were no significant difference in mitral flow Velocity. (2) DTI: There were more lower velocities of systolic and early diastolic filling wave. But isovolumetric relaxation time、mitra flow velocity / mitral annual early diastolic velocity ratio(E/Ea) increased. The velocities of systolic and early diastolic of septal site were the lowest among the 4 sides of the mitral annular and were the most closely with the average velocities of systolic and early diastolic of mitral annual. In addition, DTI may detect the pseudonormalization of mitral inflow. Conclusions DTI is more sensitive than conventional echocardiogram data and may be clinically used in exactly detecting left ventricular systolic and diastolic dysfunction in patients with HCM

Objective: To compare postoperative recovery situation between laparoscopic radical resection and conventional open surgery for patients with colorectal cancer and determine the optimal surgery scheme. Methods: 96 patients with colorectal cancer were divided into observation group (48 cases)and control group (48 cases) according to the random number table method. The patients of observation group were treated by using laparoscopic radical resection while the patients of control group were treated by conventional open surgery. A series of clinical manifestation, such as perioperative situation, abdominal pain, recovery situation, complication, pre-and post operative nutrition and quality of life, of these patients were compared between the two groups. Results: The operation time, average bleeding volume, postoperative exhaust time and hospitalization time of the observation group were significantly less than those of the control group (t=5.583, t=48.934, t=7.347, t=4.862; P<0.05). The incidence of abdominal complication of observation group (8.3%) was significantly lower than that of the control group (27.1%) (x2=5.79, P<0.05). The incidence of delayed healing of incision was 6.3% in observation group, which was significantly lower than that (20.8%) of control group (x2=4.36, P<0.05). For observation group or control group, the serum ALB, PA and LC of post-operation, respectively, was higher than those of pre-operation in 1 week after operation. And serum ALB, PA and LC of observation group, respectively, was significantly higher than that of control group (t=4.628, t=3.642, t=3.412; P<0.05). Compared with before operation, physical function, role function, emotional function, cognitive function and social functionthe quality of life of the two group were obviously improved, on the other hand, all of these aspects of the observation group were significantly higher than those of the control group (t=-12.845, t=-7.634, t=0.5001, t=-4.096, t=-2.647, P<0.05). Conclusion: Compared with the traditional open surgery for patients with colorectal cancer, the postoperative recovery of laparoscopic radical resection is better, more obvious and more effective for them.

Objective:To investigate the methylation of CpG island of metallothionein-3 (MT-3) gene in esophageal cancer tissues and normal tissues in middle and south area of Hebei Province and Chaoshan area of Guangdong Province and compared the results with those in low risk area of esophageal cancer. Methods:The blood samples from 10 normal volunteers, 10 embryonic esophageal tissues, 20 esophageal mucosa tissues from normal subjects in low risk area as well as 30 fresh surgical specimens of esophageal cancer and 30 normal marginal tissues in the high risk middle-south Hebei Province and Chaoshan area were collected. Methylation-specific polymerase chain reaction (MSP) was used to detect the methylation status of the CpG island of MT-3 gene in these samples. Its relationship with clinicopatho-logical features was analyzed. Results:There were 20 (33.3%) cases with MT-3 methylation in the marginal tissues of esophageal cancer from high-risk area, which was higher than that in the normal mucosa from low-risk area (P=0.013). And there were 49 (81.7%) cases with MT-3 methylation in esophageal cancer tissues, which was higher than that in normal marginal tissues (P<0.001). But there was no significant difference in the methylation degree between middle-south of Hebei Province and Chaoshan area (P=0.739). Conclusion:MT-3 methylation widely exists in esophageal mucosa and carcinoma tissues. Acquired stimulus may be the main cause of these methylations.

Objective To explore clinical application of coronary artery imaging with 64-slice spiral CT.Methods 46 patients with coronary heart disease were undergone both coronary artery imaging with 64-slice spiral CT and coronary angiography,and the effects on coronary display respectively were compared Results Coronary display in coronary artery imaging with 64-slice spiral CT was better than that of the coronary angiography, which was a inspection pattern of noninvasive coronary display. Conclusion Coronary artery imaging with 64-slice spiral CT can accurately evaluate coronary artery stenosis, which was worth to application.

Objective To investigate the relationship between gastrin expression and the development of coloreetal neoplasm and cell proliferation.Methods 15 samples of normal coloreetal mucosal tissue,21 samples of coloreetal adenomas and 70 samples of colorectal cancer were selected for evaluation of the expression of gastrin and Ki67 with immunohistochemieal method.Results In normal colorectal mucosal tissues.colorectal adenomas and coloreetal cancer,the positive rates of gastrin expression were 0.28.6%and 25.7%,respectively-which were signff-ieantly hisher in coloreetal cancer and adenomas groups than in the normal colorectal mucosal tissues(P<0.05).But there was no significance between colorectal cancer and adenomas(P>0.05).The positive expression rate of Ki67 with the obove samples were 40.0%,76.2%and 82.8%-respectively,with statistical results identical with results of gastrin(P<0.05).There was significant correlation between gastrin and Ki67[P<0.05).Conclusion Gastrin and Ki67 are highly expressed in eolorectal neoplasm.Gastrin miight play an important role in the carcinogen-esis and development of colorectal neoplasm,and might promote tumor cell proliferation.

Objective To investigate strain and strain rate of right ventricular(RV)based on twodimensional image by velocity vector imaging in normal subjects.Methods Thirty-two healthy adults were rolled in this study.Echocardiographic images in 4 chamber view were analyzed by conventional manual tracing for volumes and ejection fractions,which were also measured by velocity vector imaging.Myocardial velocity,strain rate,and strain were determined at the basal,mid,and apical segments of the RV free wall and ventricular septum by velocity vector imaging.Results RV ejection fractions obtained with manual tracing correlated strongly with the same indexes obtained by velocity vector imaging method in all subjects(r=0.91,P＜0.01).The strain and strain rate value of middle segment and basal segment in RV free wall were higher than those of apical segment.There were same trend in ventricular septal.The strain and strain rate of middle segment and basal segment in RV free wall were higher than those of homologous segments in ventricular septal,but the indexes of apical segment in free wail and septal had no difference.The strain and strain rate in RV were not correlated with age.Conclusions Velocity vector imaging could accurately and quantitatively assess the strain and strain rate of RV.

Objective To study the correlation with the infectious situation of Borna disease with the multiple sclerosisof Zunyi region. Methods Established method of the specific CIC and an antibody of Borna were used to detect the PBMC of 7cases of patients with multiple sclerosis and 93 cases of control group.Results In the collected 7 cases of PBMC in patients with multiple sclerosis, detected 2 positive samples of the specific CIC and antibody of Borna with a positive rate of 28.57%(2/7).Meanwhile, positive plasma samples were also detected in healthy control group, and the positive rate was 7.53%(7/93),The antibody positive rate of control group was also 5.38%(5/93).But between the two groups, the difference was no statistically significant.Conclusion Results indicate that the possibility of BDV infection is presented in Zunyi regions.BDV infection is not necessarily associated with multiple sclerosis.

Objective To investigate the microRNAs(miRNAs)expression profiles in the bowels of patients with Hirschsprung disease(HSCR),and to explore the role of differentially expressed miRNAs in the pathogenesis of HSCR. Methods Twenty - seven HSCR tissues,including spastic segments and distending segments,were obtained from patients with HSCR during operation. Then miRNA microarrays were used to investigate the miRNA expression profiles in 6 HSCR specimens. Bioinformatics software was used to predict target genes of miRNA. Three miRNAs (miR - 145 - 3p,miR - 4505 and miR - 1260a)were chosen and quantificational real - time(qRT)- PCR was per-formed to verify the different expression of those three miRNAs in 27 HSCR tissues. Results The expression of 26 miRNAs in an aganglionic colon segment was found to be more than two fold greater than that in ganglionic segment tis-sues,including 19 up - regulated miRNAs and 7 down - regulated miRNAs in patients with HSCR(all P ﹤ 0. 05). Tar-get genes of miRNAs were found,such as SOX10,RET,L1CAM. qRT - PCR showed the expression of miR - 145 - 3p (1. 42 ± 0. 42,aganglionic segment vs 0. 90 ± 0. 31,ganglionic segment)and miR - 4505(1. 30 ± 0. 30,aganglionic segment vs 0. 76 ± 0. 22,ganglionic segment)displayed a statistical difference between groups(all P ﹤ 0. 001). Be-sides,the expressions of miR - 145 - 3p(1. 53 ± 0. 46,long - segment type vs 1. 16 ± 0. 12,short - segment type)and miR - 4505(1. 42 ± 0. 26,long - segment type vs 1. 00 ± 0. 16,short - segment type)showed a statistical difference be-tween different types(all P ﹤ 0. 001),but miR - 1260a(1. 11 ± 0. 25,aganglionic segment vs 0. 99 ± 0. 21,ganglionic segment)did not show differential expression between different groups(P = 0. 064). Conclusions Abnormal expression of miRNAs was found in HSCR spastic segments,suggesting that miRNAs may be involved in the pathogenesis of HSCR.

Objective To investigate the relationship between the expression ofα1-antichymot-rypsin (α1-ACT)in plasma and postoperative cognitive dysfunction(POCD).Methods The cognitive function of 64 patients undergoing operation under general anesthesia was evaluated by a battery of cognitive assessment instruments(BCAI)and the levels ofα1-ACT were measured at the time 1 d pre-operatively and 7 d and 3 months postoperatively.The patients were randomly divided into two groups:30 patients in ulinastatin group (group U)were injected with 10 000 U/kg ulinastatin,which was dissolved in 100 ml saline,within 20 min at the time of 30 minutes before induction;while control group (group C)were injected with the same volume saline.Results There was no significant differ-ence between the expression of α1-antichymotrypsin in patients with POCD and in control patients at the time before operation.Compared with control patients,the levels of α1-ACT in patients with POCD at the time of 7 d and 3 months postoperation were significantly higher (P <0.05).The levels of α1-ACT at 7 d postoperation were significantly higher than that preoperatively in both groups (P <0.05).The incidence of POCD in group U were significantly lower than that in group C,at the time of 7 d and 3 months after surgery (P <0.05).Conclusion POCD is associated with high expression of plasma α1-ACT.

OBJECTIVE To investigate the distribution of fungus infection and risk factor of postoperation patients with tumors. METHODS We analyzed 1 256 postoperation patients in our hospital ICU from Aug 2000 to Aug 2004,and found that there were 88 fungus infection patients(7%),the pathogens were tested and analyzed. RESULTS The fungus infection,which dominated in respiratory tract and digestive tact,had an increasing tendency,the most prevalent fungus of infection was Candida albicans. CONCLUSIONS The risk factors of fungus infection are mechanical ventilation,the useness of antibiotics,radiotherapychemotherapy,and invasive treatment,it is very important to diagnose early and treat in time.