Peripheral T cells are closely related to nature killer( NK)cells,and share some immunophenotypic and functional properties with NK cells.Peripheral T-cell and NK cell lymphomas are heterogeneous groups of lymphomas,and the subgroup classification is complicated.Currently,the pathogenetic molecular lesions remain not to be deciphered for most entities.However,novel insights into the features of angioimmunoblastic T-cell lymphoma displaying correlation with normal helper T cells,the gene of anaplastic large cell lymphoma,and potential therapeutic biomarkers,have been gained from molecular technology application.

This paper not only analyzes the technology characteristic and market prospects of medical motor vehicle equipment in China,summarizes the current status of the development and standardization of medical vehicles inside and outside army,but also demonstrates the standardization system of medical motor vehicle technology in China,puts forward the solving methods and measures for the lack of medical motor vehicle equipment standards.

Objective To review the biologic characteristics and biologic effect of cholecystokinine (CCK) on the central nervous system. Methods The literatures of recent years on research advancement of cholecystokinine as neurotransmitters/peptides in signal transduction, neuron protection and pain management in the central nervous system are reviewed. Results CCK possesses the ability to suppress the convulsant effects of convulsants. CCK8 is able to reduce the neural damage caused and delay the neural aging. CCK antagonists play an important role in human pain transduction. Conclusion CCK has been proven to be one of the richest neurotransmitters/neuropeptides as well as an important signal factor in the brain, and its important biologic effect is being confirmed.

Objective To optimize the formulation of controlled-onset extended-release tablets of nicorandilby central composite design-response surface method. Methods The tablets containing nicorandil were prepared bydry-compression coating technique.The influence factors included the amount of HPMC, the amount of EC, and the ratio of lactose/MCC in coating film. The evaluation parameter was Q4 h and Q5 h . The possibly optimal formulation was predicted by response surface method. Results The OD was simulated using second-order polynomial equation and the r2was 0.970 1.Optimal prescription was as follows:HPMC 89.96 mg, EC 46.21 mg, Lactose/MCC 1.87.Bias between the observed and predicted values of the OD was within 0.43%. Conclusion The controlled-onset extended-release tablets of nicorandil can release drug quickly in vitro at the predetermined time.Central composite design-response surface method can be used to optimize the formulation and the model developed in this study was proved highly predictable.

Objective To observe the influences of infusion with normal saline (NS), Ringer solution and hydroxyethyl starch 130/0.4 sodium chloride on blood coagulation/fibrinolysis in rabbits with acute respiratory distress syndrome (ARDS) induced by two-hit of oleic acid (OA) and lipopolysaccharide (LPS).Methods According to random number table, 40 healthy adult male rabbits were divided into sham operation, model, NS, Ringer and colloid groups (8 rabbits in each group). The ARDS model was replicated by sequential injection of OA (0.1 mL/kg) and LPS (500μg/kg) into the ear marginal vein of rabbit. Immediately after injection of LPS, the NS, Ringer and colloid groups were treated by intravenous infusion of NS, lactate Ringer solution and hydroxyethyl starch 130/0.4 sodium chloride, respectively at a speed of 7 mL·kg-1·h-1 for 210 minutes. There was no liquid infusion in model and sham operation groups. At 30 minutes and 210 minutes after LPS injection, the arterial blood was collected and the partial pressure of arterial blood oxygen (PaO2) was measured and the oxygenation index (PaO2/FiO2) was calculated. At 5, 30, 120 and 210 minutes after LPS injection, venous blood was collected, and activated partial thromboplastin time (APTT), prothrombin time (PT), fibrinogen (Fib), antithrombase Ⅲ (AT-Ⅲ), serum procollagen peptide Ⅲ (PⅢP), tissue plasminogen activator (t-PA) were measured, respectively. After the rabbits were killed by bloodletting at the end of experiment, the lung tissues were obtained, collagen Ⅰ and collagen Ⅲ in lung tissues were detected by immunohistochemistry staining, lung wet/dry weight ratio (W/D) and pathologic score of lung tissues were calculated.Results Compared with sham operation group, at 30 minutes and 210 minutes in model group the levels of PaO2/FiO2 were significantly decreased, and the lung W/D ratios as well as pathologic scores of pulmonary tissues were increased. In model group, the APTT began from 30 minutes while the PT began from 120 minutes to gradually prolong, and the value of Fib was progressively decreased; with a tendency of mild decline, the levels of AT-Ⅲ at all time-points were lower in model group than those in sham operation group (allP < 0.05). The levels of t-PA and PⅢP at all time-points were significantly higher, and the expression levels of collagen Ⅰ and collagen Ⅲ in model group were obviously more strengthened compared to those in sham operation group. Among the three infusion groups, the improvement degrees of PaO2/FiO2, lung W/D ratio and pathologic score of pulmonary tissues were the highest in NS group, lowest in colloid group, and no significant changes in Ringer group. APTT in NS group except 120 minutes was longer, the APTTs at 30 minutes and 210 minutes were shorter in NS group than those in model group (s: 30 minutes: 52.26±18.65 vs. 76.22±16.64, 120 minutes: 90.60±10.66 vs. 83.01±15.88, 210 minutes: 70.44±17.80 vs. 77.04±13.32, allP < 0.05); the prolongation of amplitudes of APTT in Ringer and colloid groups were greater than that in model group, particularly in colloid group, the greatest; the PT in three infusion groups were gradually prolonged, and at 120 minutes and 210 minutes were all longer than that in model group (allP < 0.05). The levels of Fib in those treatment groups were all gradually decreased, the amplitude descent of Fib in NS group was the smallest and that in colloid group, the biggest; the levels of AT-Ⅲ in three infusion groups and model group had similar decline tendency, the descending amplitude being the most significant in colloid group. The levels of t-PA at all time-points in the three treatment groups were lower than those in model group (allP < 0.05). The levels of PⅢP in serum at all time-points were lower in Ringer and NS groups than those in model group (μg/L: Ringer group: 5 minutes: 250.60±36.53 vs. 285.77±65.55, 30 minutes: 248.73±44.41 vs. 302.16±37.73, 120 minutes: 249.14±43.16 vs. 296.09±38.64, 210 minutes: 246.62±44.72 vs. 295.45±42.75; NS group: 5 minutes: 261.89±50.74 vs. 285.77±65.55, 30 minutes: 247.71±50.40 vs. 302.16±37.73, 120 minutes: 246.58±42.27 vs. 296.09±38.64, 210 minutes: 222.73±18.51 vs. 295.45±42.75, allP < 0.05), but there were no statistically significant differences between the colloid group and model group. The expression levels of collagen Ⅰ and collagen Ⅲ in all liquid infusion groups were lower than those in model group (P < 0.05 orP < 0.01), whereas in colloid group were higher than those in NS and Ringer groups (allP < 0.05).Conclusions The infusion of NS, lactate Ringer solution and hydroxyethyl starch 130/0.4 sodium chloride have different influences on the blood coagulation function in ARDS rabbits, among which the effect of NS is the least, while of the hydroxyethyl starch 130/0.4 sodium chloride appears the greatest. The infusion of these three liquids can all decrease the pulmonary fibrous tissue in rabbits with ARDS, and in the mean time can alleviate the lung tissue pathological lesion for a certain degree, the effect of NS and Ringer solution being greater than that of hydroxyethyl starch 130/0.4 sodium chloride.

Objective To determine the content of ECEGC in Salacia amplifolia by HPLC.Method HYPERSIL C18 column was used with a mixture of methanol and water(30∶70) as mobile phase,and detected at 283 nm.Result The linear range was 0.444 8～7.116 8 ?g(r =0.999 9) for ECEGC.The average recovery was 100.30%.Conclusion The method is simple,rapid,accurate and reliable.

OBJECTIVE:To evaluate the status and tendency of the application of antihyperlipidemics drugs in Chongqing area. METHODS: The use of antihyperlipidemics drugs in 28 hospitals of Chongqing from 2004 to 2007 was analyzed statistically in respect of the consumption sum, DDDs and DDC. RESULTS: The mean annual incremental ratio of the consumption sum of antihyperlipidemics drugs reached over 33.80%. Simvastatin has been dominated the first place over the 4 years in terms of consumption sum and DDDs; the consumption sum of atorvastatin has been on the rise but that of Gemfibrozil decreased year on year with mean annual decrement of 60%. CONCLUSION: Statins assumed a dominant position among all the antihyperlipidemics drugs used in Chongqing area and its use has great potential.

Carcinoma ; diagnosis ; Carcinoma, Papillary ; Diagnostic Errors ; Female ; Humans ; Thyroglossal Cyst ; diagnosis ; Thyroid Neoplasms ; diagnosis ; Young Adult

Objective To investigate the effect of high mobility group box-1 protein (HMGB1) on immune function of peritoneal macrophages in mice. Methods The peritoneal macrophages were isolated from female BALBc mice in vitro. The macrophages were stimulated with different doses of HMGB1 (1, 10, 100, 1 000ng/ml) for 6 hours, or with 100ng/ml HMGB1 for different duration (0, 6, 12, 24, 48, 72 hours). The phagocytosis ability of macrophages was determined by the neutral red dye uptake assay and optical densities of samples were read at 540nm. The cytotoxicity to L1210 cells was measured with MTT assay and was expressed by absorbance at 570nm. The chemotaxis was assayed by using the Costar Transwell cell culture chamber inserts and the cells on the lower surface of the transwell membrane were fixed and counted. The cells were harvested at the indicated time points, fixed, and stained for indirect immunofluorescence, then the expressions of I-Ak MHC class Ⅱ alloantigen on macrophages were determined with flow cytometry. Results The effects of HMGB1 on phagocytic activities, cytotoxicity, chemotaxis and I-Ak antigen expression of macrophages were enhanced in a dose-dependent manner, starting at doses as low as 1ng/ml and with a maximal response at 100ng/ml (P

Retrospective study was carried out in 93 cases of endometrial carcinoma admitted to our hospital since Jan. 1985 to Dec. 1994. Thirty five cases were older than 60 years, and 24 cases were younger than 50 years. All of the cases had pathological diagnosis and were staged according to FIGO. When compared with the younger group, the rate of older patients with stage Ⅰa was higher (11.4% in younger and 45.4% in older, P