Objective To observe the effects of interical epileptiform discharges (IED) on emotional behavior and spatial learning and memory of rats.Methods 76 male Wistar rats were divided randomly into 4 groups. Group HK/SE (n=23) for kindling with rapidly recurring hippocampal seizure followed by subconvulsive electrical stimulation to hippocampus 13 days later. Group HK (n=20) for hippocampal kindling. Group SE (n=17) for control of electrode implanted in hippocampus without stimulation, and Group NC (n=16) for normal control. The emotional behaviors of experimental animals were tested by the activity in an unfamiliar open field and resistance to capture from the open field, as well as their spatial learning ability in the Morris watermaze.Results The IED rats in Group HK/SE tested 14 days after hippocampal kindling displayed substantial decreases in open-field activity (scale: 17.3?3.6 for NC group, and 4.6?1.3 for IED rats, P

Abstract Tibet Plateau is one of the most prevalent areas of brick-tea type fluorosis in China. Effective management of brick-tea type fluorosis is a key point and a difficulty in endemic disease prevention and treatment in Tibet. Brick-tea type fluorosis is a human health concern that occurs under specific natural environments and social humanistic conditions in Tibet. Recently, the prevalence of brick-tea type fluorosis has been effectively reduced in the Tibet Plateau; however, there are still challenges for the overall brick-tea type fluorosis control, and the endemic status remains more severe than other regions endemic for brick-tea type fluorosis in China. Previous studies have shown that intake of high-fluoride brick-tea, dietary habits of drinking tea and specific natural environments are strongly associated with brick-tea type fluorosis in the Tibet Plateau. This review summarizes the advances in the epidemiological characteristics and influencing factors of brick-tea type fluorosis, so as to provide insights into the development of the long-term control strategy for brick-tea type fluorosis in the Tibet Plateau.

Objective To explore the effect of minimally invasive clinical pathway in patients after car-diac interventional therapy. Methods One hundred and twenty patients who received cardiac interventional therapy from June 2005 to October 2006 were divided into the control group and the observation group.The control group received routine nursing while the observation group adopted minimally invasive clinical pathway of nursing.The nursing effect in the two groups was compared. Results The mean hospitalized duration, sat-isfaction degree and health knowledge level in the observation group were superior to those of the control group (P ＜ 0.05). Conclusions The adoption of minimally invasive clinical pathway in patients after cardiac inter-ventional therapy could increase working efficiency nd ensure the nusing quality.

One marine actinomycete strain FIM02-523 was isolated from marine soil in the East China Sea in Fujian Province. The fermentation broth of strain FIM02-523 exhibited potent antitumor activities. Strain FIM02-523 grew well on most media tested, the colonies were orange to dark brown but lacked aerial hy-phae, no diffusible pigments were observed. Phylogenetic, chemotaxonomic, morphological analyses, physiological and biochemical characteristics demonstrated that strain FIM02-523 belong to the genus Mi-cromonospora, may be a strain of the type species Micromonospora chalcea.

Objective: To observe the therapeutic efficacy of acupoint application at different groups of acupoints in treating bronchial asthma in remission stage. Methods:A total of 120 patients with bronchial asthma in remission stage were recruited and divided by the random number table method into acupoint application group 1, acupoint application group 2 and acupoint application group 3, with 40 cases in each group. In all the three groups, Tiantu (CV 22), Dazhui (GV 14) and Feishu (BL 13) were selected, with Dingchuan (EX-B 1) added in acupoint application group 1, Shenshu (BL 23) added in acupoint application group 2, and Gaohuang (BL 43) added in acupoint application group 3. Before intervention, one month and 3 months after intervention, clinical symptoms, peak expiratory flow (PEF) andforced expiratory volume in 1 second percentage of predicted value (FEV1％) of the three groups were observed, and their clinical efficacies were evaluated. Results: Comparing the therapeutic efficacy regarding traditional Chinese medicine symptoms and signs, after 1-month treatment, the total effective rate was 87.5％ in acupoint application group 1, versus 62.5％ in acupoint application group 2 and 55.0％ in acupoint application group 3, and the between-group differences were statistically significant. After 3-month treatment, the total effective rate was 95.0％ in acupoint application group 1, versus 70.0％ in acupoint application group 2 and 65.0％ in acupoint application group 3, and the between-group differences were statistically significant. After intervention, the three groups all showed significant improvements in pulmonary function with statistical significance; among the three groups, the improvement in acupoint application group 1 was more significant than that in the other two groups. Conclusion: Tiantu (CV 22), Dazhui (GV 14) and Feishu (BL 13) as basic prescription plus Dingchuan (EX-B 1) can improve symptoms of bronchial asthma in remission stage, and it works better in improving pulmonary function than the basic prescription plus Shenshu (BL 23) or Gaohuang (BL 43).

Objective To explore the curative effect of Uvb radiation treatment on inflammation of radioactive oral mucosa and summarize nursing points. Methods Seventy patients with oral mucositis after radiotherapy for head and neck cancer were randomly divided into experiment group and control group, 35 in each group: The experiment group was treated by shortwave ultraviolet intracavitary irradiation and the control group, mouthwash by silver, 3 times a day, observing two groups of therapeutic effect after 3 d. Results The total effective rate of the observation group was statistically better higher than that of control group ( P < 0 . 05 ) . Conclusion Short-wave ultraviolet radiation is effective in the treatment of inflammation of radioactive oral cavity mucous membrane.

Objective To study the severity of acute pancreatitis (AP) by using MRI and the acute physiology and chronic healthy evaluation Ⅲ (APACHE Ⅲ ) score, and the correlation between corresponding MRI findings and APACHE Ⅲ scores.Methods One hundred patients with AP undergoing abdominal MRI were recruited in the study. The MRI features of acute pancreatitis were recorded. The severity of AP on MRI was graded by MR severity index (MRSI) as mild (0 to 2 points),moderate ( 3 to 6 points) and severe (7 to 10 points).APACHE Ⅲ score was denoted for AP was as mild ( ＜35 points)and severe ( ≥ 35 points).The local and systematic complications,mortality,need to intense care unit (ICU),and hospitalization time were recorded and compared with MRSI and APACHE Ⅲ score.Nonparametric Spearman correlation was calculated for testing the correlation between the MRSI,the APACHE Ⅲ and hospitalization time.The correlation of clinical results with MRSI and APACHE Ⅲ was calculated by x2 test.Results In the 100 patients with AP,there were respectively 80 and 20 patients with edematous and necrotic pancreatitis on MRI.According to MRSI,34,59 and 7 patients had mild,moderate,and severe acute pancreatitis,respectively.The APACHE Ⅲ score was (24.9 ± 12.2) points.Seventy-seven patients had less than 35 points and 23 patients had more than 35 point of APACHE Ⅲ score.There were significant differences in the local complication,systematic complication,need to ICU among the three groups in MRSI score,respectively( x2 =9.161,19.118,54.767;P ＜ 0.01 ).There was difference in the systematic complication between mild and severe AP in APACHE Ⅲ score(x2 =13.120,P =0.000),but there were no differences (x2 =0.245,x2 =2.568;P ＞ 0.05) in the local complication,need to ICU between mild and severe AP in APACHE Ⅲ score.There was weak correlation ( r =0.235,P =0.019 )between MRSI score and hospitalization time,and no difference (r =0.168,0.105; P ＞ 0.05)between APACHE Ⅲ and MRSI,APACHE Ⅲ and hospitalization time,respectively.Conclusions Both MRSI and APACHE Ⅲ score may predict systematic complications. However,MRSI is superior to APACHE Ⅲ in predicting the local complications,need to ICU,and hospitalization time in patients with acute pancreatitis.

Objective To investigate the relation between the cellular immune function and unexplained recurrent spontaneous abortion(URSA) and the mechanism of active immunotherapy on URSA patients.Methods The flow cytometry(FCM) was used to detect CD3+ ,CD4+ ,CD8+ T lymphocyte and CD16+CD56+ natural killer(NK) cell subsets and the ratio of CD4+/CD8+ of peripheral blood(PBL).112 cases with URSA(76 cases treated with active immunotherapy) and 30 cases of normal fertiled(NF) women were studied.The percentages of T lymphocyte and NK cell subsets before and after therapy were compared among 76 cases wtih URSA treated by active immunotherapy.The rate of next successful pregnancy of URSA patients treated with and without active immunotherapy was compared.Results The percentages of CD3+ and CD16+CD56+ cell subsets as well as the ratio of CD4+/CD8+ of the URSA patients were significantly higher than those of NF cases(P <0.05).After active immunotherapy,the percentages of CD3+ and CD56+CD16+ cell subsets as well as the ratio of CD4+/CD8+ of URSA cases were significantly decreased(P <0.05 ).The rate of next successful pregnancy of URSA cases with and without active immunotherapy were 88.2% and 31.2% respectively,the difference was significant(P< 0.05).Conclusion The changes in the percentages of T lympyocyte and NK cell subsets have something to do with URSA.Active immunotherapy can effectively regulate the cellular immune function and increase the rate of next successful pregnancy of URSA patients.

The interaction between Gliotoxin and bovine serum albumin (BSA) was studied by the fluo-rescence, Circular Dichroism (CD) and ultraviolet visible (UV-Vis) techniques. The fluorescent experiment showed that the intrinsic fluorescence of BSA was quenched by the binding of gliotoxin in a static quenching procedure, with an association constant of 7.2?103 L/mol and in hydropobic forces. And the CD spectrum revealed that gliotoxin effected the conformation of BSA by increased the mass of ?-helix.

Objective: To explore the impacts of coal mine dust on lung function in rats, so as to provide the basis for the early prevention and treatment of coal worker's pneumoconiosis. Methods: Seventy-two SPF-grade 8-week-old male Sprague-Dawley rats were randomly divided into the coal dust group, the coal-silica dust group, the silica dust group and the control group. The rats in the first three groups of rats were administered 1 mL corresponding dust suspension into the lungs using non-exposure tracheal instillation, while the rats in the control group were administered 1 mL normal saline. Respiratory rate (f), forced vital capacity (FVC), peak expiratory flow (PEF) and dynamic pulmonary compliance (Cdyn) were measured at 1, 3 and 6 months after dust exposure. Lung tissues were collected to measure reactive oxygen species (ROS) and adenosine triphosphate (ATP) levels using corresponding ELISA kits and ATP assay kits, respectively. The relative mRNA expressions of peroxisome proliferators-activated receptor gamma coactivator 1-alpha (PGC-1α) and mitochondrial transcription factor A (TFAM) were detected using real-time fluorescent quantitative polymerase chain reaction assay. The relative protein expressions of PGC-1α and TFAM were detected using Western blotting. Results: There was no interaction between dust type and exposure duration on f (P>0.05), but there were interactions on FVC, PEF and Cdyn (all P<0.05). Compared with the control group at 6 months after dust exposure, the f of the rats in the silica dust group were increased, while the FVC and PEF of the rats in the coal-silica dust and silica dust groups were decreased, and Cdyn of the rats in the coal dust, coal-silica dust and silica dust groups were decreased (all P<0.05). There were interactions between dust type and exposure duration on ROS and ATP levels, the relative mRNA and protein expressions of PGC-1α and TFAM (all P<0.05). Compared with the control group at 3 and 6 months after dust exposure, the ROS levels in the rats in the coal dust, coal-silica dust and silica dust groups were increased, while the ATP levels, the relative mRNA and protein expressions of PGC-1α and TFAM were decreased (all P<0.05). Conclusion The lung function impairment in rats caused by different types of coal mine dust is related to PGC-1α-mediated mitochondrial biogenesis dysfunction, which leads to increased ROS levels, decreased ATP and TFAM levels.