Objective To investigate the effect of sodium nitroprusside (SNP) , an exogenous NO donor, on expression of hemeoxygenase-1 (HO-1) and inducible NO synthase (iNOS) in the lung tissue in a rat model of lpopolysaccharide (LPS)-induced acute lung injury and the underlying mechanism.Methods Thirty-two Wistar rats of either sex weighing 190-210 g were randomly divided into 4 groups ( n = 8 each) : Ⅰ sham operation (S) ;Ⅱ LPS;Ⅲ hemin + LPS and Ⅳ SNP + LPS. The animals were anesthetized with intraperitoneal (IP) 7% chloralhydrate 5 ml?kg-1. LPS 750 ?g?kg-1 in 300 ?l was instilled into the lungs via trachea in group Ⅱ . In group Ⅲ hemin (a HO-1 inducer) 40 ?mol?kg-1 was injected IP 12 h before LPS. In group Ⅳ SNP 25 ?g?kg-1 + LPS 750 ?g?kg-1 in 300 ?l was instilled into the lungs via trachea. In group S normal saline 300 ?l was instilled via trachea instead of LPS. The animals were killed by (1) exsanguination from carotid artery 8h (2) after LPS instillation and lungs were removed for broncho-alveolar lavage (BAL) and detennination of protein concentration in BALF and the expression of HO-1 and iNOS protein in the lung tissue by immune-histochemical technique and HPIAS-2000 image analysis system and MDA content in lung tissue and (3) light microscopic examination (4) wet/ dry lung weight ratio.Results The 4 groups were comparable with respect to body weight and sex (M/F ratio) . The expression of iNOS and HO-1 in lung tissue was significantly higher in LPS group than in S group ( P

OBJECTIVE:To observe the effects of Xiaoer Reganning oral liquid(XRN) on clinical symptoms and signs of children with acute upper respiratory tract infections.METHODS:161 children with acute upper respiratory tract infections were randomly divided into three groups.The patients were treated with XRN(XRN group,60 cases),Shuanghuanglian oral liquid(SHL group,41 cases) and Wei C Yingqiao granules(WCG group,60 cases),3～4 times every day for 3 days.The changes of clinical symptoms of coughing rhinorrhea,lassitude,anorexia and dyssomnia,and signs of pharyngeal congestion and tonsillar swelling were studied on the patients before and after treatment for three days,and the results of three groups were compared.RESULTS:The improvement of the clinical symptoms and signs in XRN group was better than that in the control groups(P

Objective: To evaluate the antipyretic action of Xiaoerreganning Oral Solution on acute upper respiratory tract infection of children. Methods: 161 children with acute upper respiratory tract infection were randomly divided into 3 groups. 60 patients at different age ranges in Xiaoerreganning Oral Solution group were treated with Xiaoerreganning Oral Solution at different dosags, 3～4 times every day. The treatment course was 3 days. Patients' body-temperatures before and after treatment were recorded. The temperature differences in various time points before and after treatment were computed, and compared with the results of Shuanghuanglian Oral Solution group and Wei C Yingqiao Tablets group.Results: All three drugs could reduce the patients' body-temperatures gradually, but the antipyretic action of Xiaoerreganning Oral Solution was the strongest. There were significant differences in temperature difference between Xiaoerreganning Oral Solution Group and Wei C Yinqiao Granules (in 2 or 6h after treatment and in 1 day or 3 days after treatment, P

Objective To analyze the expression of carcinoembryonic antigen (CEA) in various populations and the simultaneous expression of other markers using multiple tumor marker protein chip, and to discuss the possible clinical relevance. Methods A total of 25 076 profiles of multiple tumor marker protein chip were collected in our hospital for analysis. The elevation of CEA in various populations and commonly-seen tumors was analyzed, and the combined elevation of CEA and other markers was also analyzed in tumors. Results Elevation of CEA in patients with malignant tumors was significantly more than those in patients with benign lesions and normal controls (P<0. 01), with the highest positive rate of CEA seen in the colorectal cancer (41. 85%), followed by pancreatic cancer (37. 97%) and lung carcinoma (37. 16%). CEA was always accompanied by other markers in tumor patients, with the mostly seen elevated marker being CA125, followed by CA19-9 and CA242. The CEA/CA125 was often seen in pancreatic cancer (74. 26%), ovarian cancer (69. 57%), hepatocellular carcinoma (62.13%), and lung cancer (51. 68%); CEA/CA19-9 was often seen in pancreatic cancer (77.23%) and hepatocellular carcinoma (72.34%); CEA/CA242 was often seen in pancreatic cancer(77. 23%) and colorectal cancer(57. 61%); CEA + CA19-9 + CA242 was usually seen in pancreatic cancer(76. 24%), ovarian cancer(52. 17%), and colorectal cancer (51. 32%); and CEA+CA19-9 + CA242 + CA125 was mostly seen in pancreatic cancer(61. 39%). Conclusion CEA is widely expressed in malignant tumors, but it is not specific for malignant tumors. Single elevation of CEA has high value for diagnosis of colorectal cancer, pancreatic cancer, and lung carcinoma. CEA combined with CA125, CA19-9 or CA242 can help to improve the positive rate for diagnosis of pancreatic cancer, ovarian cancer and colorectal cancer.

The Mycoplasma hominis infection is a rare postoperative complication after joint replacement. Based on our knowledge, there were only two cases reported by Korea all over the world currently. A case of postoperative Mycoplasma hominis infection after total knee replacement in our hospital was reported in this article. It was confirmed through mass spectrometer and Mycoplasma cultivation and treated by the first stage debridement, polyethylene insert replacement, and then drainage and irrigation combined with sensitive antibiotics after the operation. We observed that the C reactive protein (CRP) level correlates with the development of disease, while the erythrocyte sedimentation rate (ESR) remains at a high level, indicating the relevance between the Mycoplasma hominis infection caused by knee joint replacement and CRP. This study aims to report the case and review relevant literature.

OBJECTIVETo study changes and rules of the left ventricular functions in rabbits with myocardial contusion through parallel functional analysis by using echocardiography combined with cardiac catheter intervention.

METHODSThirty healthy rabbits were selected and impacted to make moderate or severe myocardial contusion by BIM-II biomedical impact machine. The changes of hemodynamics and cardiac systolic and diastolic functions were respectively observed before injury and 1, 4, 8 and 24 hours after injury.

RESULTSAfter myocardial contusion, the heart rate, systolic pressure, diastolic pressure and mean arterial pressure of rabbits decreased remarkably at 1-4 hours. The left ventricular end systolic pressure (LVESP), the maximum increasing rate of the left intraventricular pressure (+dp/dtmax), isovolumic pressure (IP) and the maximum systolic velocity of the left ventricle (Vmax) also decreased markedly. And then these parameters recovered to the level of preinjury at 8-24 hours. The left ventricular end-diastolic pressure (LVEDP), the rate of the left intraventricular pressure (-dp/dtmax) and the decreasing time constant of the left intraventricular pressure (T) increased remarkably 1 hour after myocardial contusion, and did not decrease until 8 hours after myocardial contusion. Detection by echocardiography showed that ejection fraction of the left ventricle markedly decreased at 24 hours after myocardial contusion, while the systolic volume decreased obviously as early as 1 hour after myocardial contusion, at 4-8 hours it recovered a little and again decreased at 24 hours. The end systolic volume and end diastolic volume increased after myocardial contusion, but statistical significance was only seen at 8 hours after myocardial contusion.

CONCLUSIONSCardiac functions of the left and right ventricles are markedly injured after myocardial contusion with disorders of the left ventricle diastolic function and of the right ventricle systolic function as the dominant injury. While the systolic function of the left ventricle can recover. Echocardiography shows clinical importance in detection of early injuries of cardiac functions.

Animals ; Contusions ; physiopathology ; Female ; Heart Function Tests ; Heart Injuries ; diagnostic imaging ; physiopathology ; Hemodynamics ; Male ; Rabbits ; Ultrasonography ; Ventricular Function, Left ; Ventricular Pressure

Objective　To design and develop a portable multi -parameter life sign monitor. Methods　Electrocardiogram (ECG). blood pressure(BP), breath frequency (BF), heart rate (HR) and body temperature (BT) in real time were recorded with a single-chip microprocessor 8Xc196Mc and a high-resolution (640×200) graphic liquid crystal display (LCD) through sign al detecting and processing techniques. Results　This system cou ld display the ECG wave, and other parameters in real time dynamically. It could also provide a 24 hours trend graph for each parameter measured and exchange th e data through the serial communication interface (RS232) with the PC. C onclusion　This portable monitoring system is capable of performing cont inuous monitoring and also has the capability to resist environmental interferen ce through the added design, so it can be used widely.

OBJECTIVETo analyze retrospectively the surgical treatment of 21 cases of infected arterial injuries of the major limb hospitalized from 1989 to 2003 in our department.

METHODSAfter a radical debridement and drainage, an autologous vessel bypass reconstruction, simple vessel ligation or amputation were carried out respectively according to each patient's condition. In order to make a better milieu for the grafts, local musculo-cutaneous flaps were translocated to cover the wounds in 9 cases.

RESULTS1 case (4.8%) died during the treatment. 5 cases (5/21, 23.8%) underwent amputations. Blood supply reconstruction was successful in 15 cases (15/21, 71.4%). 93.3% (14/15) of the cases were successful in getting an unobstructed vessel at early stage. Thrombosis occurred in 1 case (1/15, 6.7%) and a sound result was obtained after a second operation.

CONCLUSIONSRadical debridement combined with bypass vessel reconstruction with autologous vein and with musculo-cutaneous flap translocation is an effective treatment for infective limb vascular injuries.

PURPOSE: This study aims to elucidate the electrotaxis response of alveolar epithelial cells (AECs) in direct-current electric fields (EFs), explore the impact of EFs on the cell fate of AECs, and lay the foundation for future exploitation of EFs for the treatment of acute lung injury. METHODS: AECs were extracted from rat lung tissues using magnetic-activated cell sorting. To elucidate the electrotaxis responses of AECs, different voltages of EFs (0, 50, 100, and 200 mV/mm) were applied to two types of AECs, respectively. Cell migrations were recorded and trajectories were pooled to better demonstrate cellular activities through graphs. Cell directionality was calculated as the cosine value of the angle formed by the EF vector and cell migration. To further demonstrate the impact of EFs on the pulmonary tissue, the human bronchial epithelial cells transformed with Ad12-SV40 2B (BEAS-2B cells) were obtained and experimented under the same conditions as AECs. To determine the influence on cell fate, cells underwent electric stimulation were collected to perform Western blot analysis. RESULTS: The successful separation and culturing of AECs were confirmed through immunofluorescence staining. Compared with the control, AECs in EFs demonstrated a significant directionality in a voltage-dependent way. In general, type Ⅰ alveolar epithelial cells migrated faster than type Ⅱ alveolar epithelial cells, and under EFs, these two types of cells exhibited different response threshold. For type Ⅱ alveolar epithelial cells, only EFs at 200 mV/mm resulted a significant difference to the velocity, whereas for, EFs at both 100 mV/mm and 200 mV/mm gave rise to a significant difference. Western blotting suggested that EFs led to an increased expression of a AKT and myeloid leukemia 1 and a decreased expression of Bcl-2-associated X protein and Bcl-2-like protein 11. CONCLUSION EFs could guide and accelerate the directional migration of AECs and exert antiapoptotic effects, which indicated that EFs are important biophysical signals in the re-epithelialization of alveolar epithelium in lung injury.
Humans ; Rats ; Animals ; Alveolar Epithelial Cells ; Lung ; Lung Injury ; Cell Movement/physiology*

OBJECTIVETo discuss damage control orthopaedics in 53 cases of severe polytrauma who have mainly sustained orthopaedic trauma.

METHODSThe data of 53 cases of severe polytrauma who had mainly sustained orthopaedic trauma were retrospectively analyzed. And the methods and timing of damage control orthopaedics were discussed in this study.

RESULTSWe succeeded in rescuing the lives of all the 53 patients, and 38 patients returned to their former work.

CONCLUSIONSInjury Severity Score (ISS(90)) should be 17 in severe polytrauma patients, but in severe polytrauma patients who have mainly sustained orthopaedic trauma, the ISS(90) of bone and joint injuries should be 16. We recommend that primary minimally-invasive external fracture stabilization should be made for extremities and pelvis in these patients to avoid additional surgical trauma and that definitive secondary fracture care should be performed after medical stabilization for these patients in intensive care unit (ICU).

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; Child, Preschool ; Female ; Fractures, Bone ; surgery ; Humans ; Male ; Middle Aged ; Multiple Trauma ; surgery ; Orthopedic Procedures ; Retrospective Studies