Objective To evaluate the relationship between the CT features and pathology of peripheral adenocarcinoma.Methods Eighty patients with peripheral pulmonary adenocarcinoma (including 44 well-differentiated,23 moderate and 13 poorly one)confirmed by pathology were collected in this series.The comparative study on CT finding and pathologic data was done.Results Air bronchograms were seen in 35 cases (79.6%)in high differential adenocarcinoma and were seen in 7 cases(30.4%) in moderate differential adenocinoma but not seen in low differential ones.The emergeua rate of lobular sign,burr sign,sign of hollowed and sign of blood vessel bundle was high in low differentiated adenocarcinoma.Lymphnode metastases and distant matestasis in moderate-low differentiated adenocarcinoma were much more than that of high differentiated ones. Conclusion The air bronchogram in nodule on CT image is important in evaluating diagnosis and progrosis of peripheral adenocarcinoma.

Objective To study the effects of Semen Cassiae extract on lipid metabolism of hyperlipidemia model mice.Methods In this experiment,mice were sc injected with two different concentration of Semen Cassiae extract,and sacrificed at 1,2,and 4 h.The blood samples were withdrawn from the eye vein.The plasma biochemical indexes were detected by using the kit,and real time PCR was used to analyze the expression of adipogenesis genes with time series.Results For hyperlipidemia model mice treated with Semen Cassiae extract serum total cholesterol(TC),triglyeride(TG),and low density lipoprotein cholesterol(LDL-C) could be decreased significantly(P

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.

Aim To establish a set of consummate evaluation methods of animal models which are with syndromes of traditional Chinese medicine.Method By means of 2,4-dinitrophenol-induced fever syndrome model for the entry point,making use of meta bonomics as the platform,through analyzing metabolic fingerprint data of rat urine in the control and model group and metabolome of rat urine in model group at different time intervals,to approach the evaluation methods of animal models.Results Through research by metabonomics,the results showed that 2,4-dinitrophenol-induced animal models consisted with clinical fever syndrome of traditional Chinese medicine.Conclusion Metabonomics can be used for evaluation studies of animal models which are with syndromes of traditional Chinese medicine.

Objective To explore the clinicopathology characteristics of endometrial adenocarcinoma and non-endometrial adenocarcinoma.Methods The clinical data of 306 patients with endometrioid cancer were analyzed retrospectively.Results The patients with endometrial adenocarcinoma accounted for 90％ of all patients,and the patients with non-endometrial adenocarcinoma accounted for 10％.Compared with the patients with endometrial adenocarcinoma,the average age of the patients with non-endometrial adenocarcinoma was older[(59.32 ± 7.77)years],the constitution ratio of postmenopausal patients was higher(90％),the clinicopathologic stage was later(P =0.000),the grade of histology was higher(P =0.000),the myometrial invasion was deeper(P =0.014).The patients with nonendometrial adenocarcinoma were prone to occur lymph metastasis(P =0.006),and the recurrence rate was higher(P =0.000).Conclusion There is significant defference between endometrial adenocarcinoma and non-endometrial adenocarcinoma,the patients with non-endometrial adenocarcinoma has poor pronosis,and we should pay more attention to it.

Objective To investigate Insertion/Deletion (InDel) polymorphism on the X chromosome and to screen 18 InDel loci for the Chinese Han population as a forensic DNA typing system auxiliary. Meth-ods Eighteen X-InDel markers were selected using the Human Genome Browser and dbSNP database. Multiplex PCR primer pairs of selected X-InDel markers were designed using Primer 3 software and di-vided into 3 groups according to the amplified fragment length, labeled by FAM, HEX and TAMRA fluorescence dye, respectively. The population genetics research and comparative analysis of Chinese Han nationality and 4 main minorities, the Hui, Wei, Mongol, and Tibetan nationalities, were investigated with the system. Results A new multiplex genotyping system, named InDel X-18PLEX, was successfully developed and validated, consisted of 18 X-InDel markers on the X chromosome and 1 Amelogenin gen-der marker. No deviation from Hardy-Weinberg equilibrium expectations was detected in the distribution of genotypes in the 5 investigated ethnic groups. However, there was significant difference between their distributions. From the investigation of Han nationality, high female (0.999 999 4) and male (0.999 88) overall discrimination power values were obtained, as well as high overall mean exclusion chance values in trios (0.999 992) and in duos (0.99). Conclusion InDel X-18PLEX meets the requirements as a forensic DNA complementary kit, providing effective supplementary analytical tools for difficult cases.

Objective To investigate the application of real-time gray-scale contrast enhanced ultrasound (CEUS)imaging in the diagnosis of fallopian tube obstruction.Methods Forty-six females with infertility in the period of 3-7 days after menses were inspected by transvaginal CEUS,and the transmission of contrast agents in the fallopian tubes was observed.Then they were inspected by routine iodic X-ray salpingography.Later the value of real-time gray-scale CEUS in diagnosis of fallopian tube was evaluated.Results The sensitivity of CEUS indiagnosis of fallopian tubal unobstruction,obstruction and open without freely was 92.0%,87.1%,36.4%respectively;the specificity was 85.7%,96.7%,93.7%;the accurate was 89.1%,93.5%,84.7%;the Kappa was 0.78,0.85,0.16 with X-ray salpingography.The concordance was 83.7% between CEUS and X-ray salpingography.Conclusions There were no significant difference between CEUS and X-ray salpingography in diagnosis of fallopian tube unobstruction or obstruction,and the former method is safer and more convenient that is suitable to become an valuable method in inspecting of infertility.

BACKGROUND: Craniocerebral injury can cause a series of visceral complications, among which cardiovascular complication is paid special attention.OBJECTIVE: To investigate the effects of craniocerebral injury on changes of circulatory and local angiotensin Ⅱ (Ang Ⅱ ) and local angiotensin Ⅱ receptor 1 (AT1) in the heart.DESIGN: Randomized controlled experiment taking animals as subjects.SETTING: Beijing Tiantan Hospital, and the College of Basic Medicine,Capital University of Medical Sciences.MATERIALS: The experiment was conducted at the Central Laboratory of Capital University of Medical Sciences and the Central Laboratory of Beijing Tiantan Hospital from 2003 to 2004. Totally 40 healthy male Wistar rats were divided randomly into craniocerebral injury group and control group with 20 in each group.METHODS: Rats in craniocerebral injury group were treated with weightdrop method to establish the model of craniocerebral injury, while rats in control group received no impact. Twenty-four hours after hitting, 10 rats in each group were selected to assay their Ang Ⅱ and AT1; the other 10 in each group were selected to observe their myocardial forms.myocardium of rats assayed with light microscope after hematoxylin-eosin staining and transmission electron microscope.It was significantly higher in craniocerebral injury group than in control ity: It was obviously higher in craniocerebral injury group than in control Ⅱ and AT1: The area of positive reactant and gray value in craniocerebral toxylin-eosin staining: Strong acidophil staining was found on myocardial cellular plasma in craniocerebral injury group. The results showed that cytoplasm shrank obviously; muscle fiber broke, decreased or disappeared.Focal hydropic degeneration, lysis or necrosis was observed in myocardium.Ultrastructural pathological observation revealed pathological damage of myocardium.CONCLUSION: Craniocerebral injury in rats can cause myocardial damage, and changes of angiotensin system may be one of the factors.

Objective To study the feasibility and safety of coronary sinus (CS) ventricular pacing comparing with traditional right ventricular (RV) pacing in ordinary pacing treatment.Methods Sixty-one patients with an indication of pacemaker implantation were randomized into traditional RV pacing group and CS ventricular pacing group.The success rate,complications,preoperative and postoperative QRS wave duration and pacemaker parameters were compared between the two groups.Results (1) The instant success rate in traditional RV pacing and the CS pacing groups were 100％ and 68.97％ (P＜0.01);the surgical success rate was significantly higher by using left ventricular electrode than the ventricle tined electrode in CS pacing group (85.71％ and 25％,P＜0.05).There was no significant difference in the incidence of complications between the two groups (P＞0.05);(2) The increase of QRS complex width at postoperative 1 month in CS pacing group is significantly less than the RV pacing group (P＜0.05);(3) Although the pacing threshold and electrode impedance during operation,postoperative 1 month and 3 months in CS pacing group were higher than RV pacing group (P＜0.05),the CS pacing was effective.Conclusion The CS ventricular pacing is as safe and effective as traditional RV pacing,and is more consistent with physiological ventricular activation sequence.Using left ventricular electrode can significantly improve the success rate of CS ventricular pacing.

PurposeTo evaluate the effect of tube current on the pseudo-enhancement of renal cyst by simulating the phantom model of simple renal cyst.Materials and Methods 10% glucose and iodine solution with a certain concentration was used to simulate the renal parenchymal background concentration in plain scan, moderate enhancement and maximum enhancement respectively. The diameters of the cysts were 6 mm, 10 mm and 15 mm, respectively, and the cysts were divided into three groups according to different tube current: 119 mAs (group A), 178 mAs (group B) and 297 mAs (group C) while the tube voltage were all 120 kV. Whether pseudo-enhancement exists in cyst under different conditions was determined using an increase of CT value of 10 HU as the critical value. Results In group A, there was pseudo enhancement at the 240 HU background, and it was most significant with the diameter of 6 mm, which was 21 HU. In group B, pseudo-enhancement occurred in cysts with diameter of both 10 mm and 6 mm under the background of 180 HU and 240 HU, moreover, the biggest difference was 20.4 HU and it occurred in cyst with diameter of 6 mm under the background of 240 HU. In group C, pseudo-enhancement only occurred in cyst with diameter of 6 mm under the condition of 125 HU and 240 HU background concentration. Background concentration (F=17.587, P<0.01) and cyst diameter (F=4.214,P<0.05) had greater impact on cyst pseudo-enhancement, the higher the background concentration and smaller the diameter, more significantly the pseudo-enhancement would occur. With the increase of the tube current, the CT volume dose index increased, and the pseudo enhancement value was smaller, but there was no obvious regularity of pseudo-enhancement occurrence rate in cysts with different background concentration and diameter in each group.Conclusion The increase of tube current cannot completely eliminate cyst pseudo-enhancement. High background concentration and small diameter cyst are important factors in pseudo-enhancement. However, increasing the tube current can reduce the probability of occurrence of pseudo-enhancement to some extent. For those with heavier body weight, it might be necessary to increase the tube current to improve image quality and reduce the occurrence of renal cyst pseudo-enhancement.