Toxic hepatic necrosis (THN) was induced in BALB/C mice by CCl4 infection (i.p.) and then colchicine (orally), testosterone propionate or estradiol valerate (s.c.) were administered. The experimental results reveal that the effect of colchicine on THN was better in male mice than that in femalemice.Testosterone propionate had no effect on the survival rate of male and female mice with THN, but enhanced the therapeutic effect of colchicine on THN in female mice. All male mice with estradiol died and half of them with estradiol and colchicine survived(P

Objective In order to determine the effect of colchicine(Col) on the changes of serum activity of tumour necrosis factor (TNF) induced by lipopolysaccharide(LPS) in rabbits.Methods Twelve New Zealand white rabbits were equally divided into 2 groups, namely group A and group B. Rabbits in group A were intravenously administered with 0.2ml/ kg of normal saline (NS) from 67h before LPS inje ction, while those in group B were given 0.5mg/ kg of Col instead of NS at the same time course.Endotoxic shock was induced by intravevous injection of 2?g/ kg of LPS after the challenge by Bacillus Calmette Gu?rin(BCG). Results Prior infusion of Col significantly decreased the peak levels of serum TNF activity ( P

Objective To improve the identification of rush pneumoconiosis.Methods To analyze 47 cases of rush pneumoconiosis treated in our hospital from 2003 May to 2008 December.Results The male occupied 74% of 47 patients.The average age of onset was 34.2 ranging from 26.1 to 42.3.78.7% patiets presented with cough,sputum production,chest pain and dyspnea.4.2% patiets had PaO2 45 mmHg.85.1% patients' chest X-ray and CT images showed nodule shadows,interstitial fibrosis and ground glass attenuation.42.6% patients had restrictive ventilation disorders,2.1% obstrutive ventilation disorders 4.2% mixed ventilation disorders,and 74.5% decreased diffusing capacities.Through fiberoptic bronchoscopy,carbon sediment were seen on the 10% patients' bronchial walls,and bronchial lumen were distorted and stiff.Chronic inflammaion increased,macrophages and fibre tissues,and 21.2% dust cells were seen in pathology.All patients were treated according to their clinic symptoms.Conclusion Rush-mat dust was the main cause of rush pneumoconiosis,there were no special ways to cure this disease,prevention was the key to eliminate rush pneumoconiosis.

0.05 ), However, all pasameters showed significantly milder or lower in interferon ? treated group than incontrol group at the 6th, 12th week( P

Objective To determine the biomechanical parameters of left ventricular by using velocity vector imaging (VVI),and to indirectly assess the coronary artery stenosis with VVI in the patients with coronary artery disease (CAD).Methods 52 patients who had one coronary artery lesions at least diagnosed by coronary angiography (CAG)were divided into coronary artery mild stenosis group and severe stenosis group;2 1 patients in mild stenosis group had one coronary stenosis <75%;31 patients in severe stenosis group had one coronary artery stenosis ≥75% at least.At the same time,20 cases of normal people without coronary artery stenosis showed by CAG were selected as normal control group. VVI was used to detect the left ventricular wall segments of the overall longitudinal strain (GLS ), the overall circumferential strain (GCS ) and the overall radial strain (GRS ). Results The absolute values of GLS,GRS,GCS of the patients in mild and severe coronary artery stenosis groups were significantly decreased than those in normal control group(P<0.05),and the strain parameters in severe stenosis group were decreased more significantly, there were significant differences compared mild stenosis group (P<0.05 ). The distribution of the segments with decreased longitudinal strain matched the LV myocardial segment with the coronary stenosis rate ≥ 75%,and GLS had the most sensitivity.The GLS in normal control group,mild stenosis group and severe stenosis group were negatively correlated to left ventricular ejection fraction (LVEF)(r=-0.58,P<0.05;r=-0.51,P<0.05;r=-0.43,P<0.05).GLS-16.14 % was used to assess the severe coronary artery stenosis with requiring the implementation of PTCA treatment as the diagnostic cut-off point with sensitivity 96.8%, specificity of 70%, the highest Yuedden index 0.668. Conclusion The decreasing of left ventricular strain could be detected by VVI, which suggests that severe coronary artery stenosis exists in coronary artery;the distribution of the segments with significantly decreased strains can be used to assess the coronary lesions and stenosis degrees.

BACKGROUND: Tissue Doppler echocardiography (TDE) has been proved to evaluate general and local function of heart but less reported on adriamycin-induced cardiomyopathy following bone marrow stromal cell (BMS) transplantation.OBJECTIVE: To evaluate myocardial function of an adriamycin-induced cardiomyopathy rabbit model following BMS transplantation using TDE.DESIGN, TIME AND SETTING: A randomized animal control study was performed at Laboratory of Ultrasound, Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology from September 2002 to December 2003.MATERIALS: A total of 28 male adult Japanese rabbits weighing (2.0+0.2) kg were used in this study. Adriamycin was used to induce cardiomyopathy model in 20 rabbits.METHODS: Twenty-eight male Japanese rabbits were randomly divided into three groups: cell transplantation group (n=10),PBS group (n=10), and sham operation group (n=8). BMSs were isolated from cell transplantation group at the 8th day. On the 12th week, cells were labeled with 4, 6-diamidino-2-phenylindole (DAPI), and then epicardial directly injected into the myocardium of the same rabbits in thoracotomy surgery. Non-cell only culture fluid PBS was injected in PBS group. Sham operation group underwent thoracotomy surgery with the same volume of saline injection.MAIN OUTCOME MEASURES: Left ventricular function was assessed by conventional and tissue Doppler echocardiography before and 4 weeks after surgery. Histological examination including apotisis study and DAPI fluorescent were assessed after sacrificed.from (4.0+1.1) cm/s to (5.3+1.2) cm/s (P ＜ 0.05) around the inject site, but the improvement of global myocardial function was not found by conventional echocardiography. In PBS and sham operation group there were no differences in global and myocardium at 4 weeks after transplantation. Histological findings showed that the injury of the myocardium around the injection site was relieved with less apoptosis.

Objective To evaluate the methods of diagnosis and treatment of thyroid disease with concomitant focal lymphocytic thyroiditis(FLT), and explore the reasons for its confused with Hashimoto′s disease(HD).Methods During the recent 25 years, 207 patients underwent surgical trearment for pathologically diagnosed HD.Among this group, 143 cases of HD with other concomitant thyroid disease were retrospectively analysed.Results Of the 143 cases, 57 cases were found to have thyroid disease with concomitant FLT, and this was 27.5%(57/207) of the total HD group, or 39.9%(57/143) of the group with thyroid disease and concomitant HD.Intraoperative pathologic section revealed that focal lymphocytic infiltration was positive in 87.7%(50/57) of cases. The postoperative hypothyroidism occurrence rate was 19.3%(11/57), of which, 7 cases(7/57, 12.3%) were subclinical hypothyroidism.Conclusions The character of pathologic changes of thyroid disease with FLT and with HD was different. Intraoperative pathologic section can be helpful in the diagnosis of this condition and can have important significance as a guide to the scope of (surgical) resection of the thyroid gland.

Objective To investigate the clinical characteristics of skin lesions of tsutsugamushi disease.Methods The skin lesions and clinical characteristics of 17 hospitalized patients with tsutsugamushi disease were analyzed. Results Of the patients, 88.2% (15/17) developed eschar and skin ulcer, 64.7% (11/17) had skin rashes. The patients often developed solitary, painless and nonpruritic eschar 4 to 10 days after the occurrence of fever, with indefinite locations and average diameter of 1.2 cm (range: 0.5 - 3.0 cm). The eschar was covered with a black and dry surface and surrounded by a ring-shaped erythematous halo, and usually shedded 5 to 9 days after the appearance with the formation of shallow ulcer. Superficial lymphadenectasis was observed near the eschar in 80% of the patients with eschar, and no eschar was observed at the first visit in 66.7% of the patients. Skin rashes mainly included nonpruritic congestive papules (45.5%) and maculopapular rashes (54.5%), and often subsided 2 to 5 days after emergence. Conclusions The skin lesions of tsutsugamushi disease include eschar and skin rashes. Eschar is an important characteristic and highly suggestive of this entity.

Objective To observe the efficacy of open - door expansion laminoplasty in treatment of 36 cases with cervical stenosis. Methods 36 cases with cervical stenosis were all carried out open - door expansion laminoplasty. Then the efficacy and JOA17 scores were observed. Results 36 patients were followed up, the surgery fine rate was 85% ,JOA17-score of peroperation and postoperation was 5.23 and 10. 25 respectively. Conclusion The open - door expansion laminoplasty was a safe and effective surgery methods in treatment of cervical stenosis

Objective To investigate the effeit of Reconstruction of tantalum metal rod implantation in the treatment of early ischemic necrosis of femoral head( Steinberg Ⅰ～Ⅱ period) ,to explore the early femoral head ischemic necrosis of minimally invasive treatme(n)t. Method 24 patients( Steinberg Ⅰ～Ⅱ period) using C-arm fluoroscopy machine,under the greater trochanter through the neck hole to avascular necrosis zone,the first zone of the medullary sclerosis core decompression, re-implantation of tantalum rod to the subchondral bone is about 0.5 cm, through the Harris score before and after surgery for comparison. Results After follow-up 9(2 ～ 12) months,preoperative pain and function were significantly limited nuitigation. The excellent rate was 83% after opertion. MRI manifestations in patients with stable,non-ischemic necrosis increased performance. Conclusion Core decompression can significantly reduce the pressure on the femoral head hardening region, tantalum rod weight-bearing area of femoral head implant provides a structural support for subchondral bone. This method has the characteristics decompression,structural support,minimally invasive,it is worth for clinical use.