OBJECTIVE:To establish a method for the content determination of sinalbin in Sinapis alba decoction piece. METHODS:HPLC was performed on the column of Sepax HP-C18 with mobile phase of 50% acetonitrile-water solution(contain-ing 5 mmol/L tetraoctyl ammonium bromide)at a flow rate of 1.0 ml/min,detection wavelength was 227 nm,column temperature was 30 ℃,and the injection volume was 10 μl. RESULTS:The linear range of sinalbin was 0.010 1-0.202 4 mg/ml(r=0.999 7);RSDs of precision,stability and reproducibility tests were lower than 2%,recovery was 98.51%-104.62%(RSD=1.90%,n=9). CONCLUSIONS:The method is simple,accurate and reliable,and can be used for determination of sinalbin in Sinapis alba decoc-tion piece.

Objective To Study wheather the endogenous arginine vasopressin(AVP)is involved in the effect of oxotremorine(a muscarinic receptor agonist)-induced hypothermic response.Methods Core temperature and motor activity were monitored in undisturbed rats using radiotelemetry.Effect of AVP V1 antagonist on oxotremorine(OXO)-induced changes in body temperature and motor activity were observed in the rats.Results Administration of OXO led to a marked hypothermia.Core temperature recovered to basal levels at 4 hours after OXO administration.AVP V1 antagonist blocked markedly the hypothermia effect of OXO.Conclusion The AVP V1-receptor antagonist block the hypothermic effect of OXO,which suggests that OXO-induced hypothermia is mediated by AVP releasing.

Objective To improve the usage of foam dressing at the sacrococcygeal region and observe its application effect. Methods A total of 80 hospitalized patients with high risk of pressure ulcer were chosen during May to December 2015 as study objects. Patients were drawn into the observation group and the control group, each group contained 40 members. Proper-cutting foam dressings and normal foam dressing were applied in patients by the observation group and the control group individually. Researchers made records by comparing and analyzing the usage time of dressing and the skin intact of two groups. Results The observation group used foam dressing (1.88±0.12) blocks per person, foam dressing use time was (3.87±0.34) d per block, and in the control group, they were (2.60±0.38) blocks per person, (2.13±0.89) d per block, there was significant difference between two groups (t=11.427, 11.551, P<0.05). The skin integrity rate of the observation group and the control group were 95.0%(38/40) and 75.0%(30/40), the difference was statistically significant (χ2=6.275, P<0.05). Conclusions This study shows that the foam dressing need to be cut appropriately before pasting so that the clinical nurses can observe patient's skin conveniently. Once the skin has pressure red, the nurse can take timely measures to deal with it, which can decrease the incidence of pressure sores. The cutting dressing prolongs the period of using without removing the viscose part, which also can reduce the medical expenses.

Objective To study the protective effect and mechanism of ganciclovir(GCV) on acute cerebral injury of mice caused by herpes simplex virus(HCV). Methods Mice model of acute cerebral injury caused by HCV were established, morphological changes in the brain tissue of mouse treated with GCV were observed under the electronic microscope, and the mortality were compared. The HSV - I DNA copies of brain tissue were detected by fluorescent quantitative polymerase chain reaction. Results In the infected model group, there were obvious swelling, karyopyknosis and destruction of the structure in the brain cells, as well as myelin sheath solution and vacuolar degeneration in the mitochondrion and crest were destroyed. There were the virions in the nucleolus. With the GCV treatment, the symptoms were improved, the mortality much lowered, the yields of HSV - I DNA much lower. Conclusions GCV may restrain replication of HSV-Ⅰ effectively and lower the mortality of mice with acute cerebral injury caused by herpes simplex virus significantly.

BACKGROUND: Electrical activity of nerve cells is based on the ion channel activity on cell membrane. Epilepsy is basically characterized by abnormal neuronal discharge. The foundation is ion channel activation on cell membrane and ion transmembrane movement, however, whether Ca2+-activated K+ channel involves in epilepsy induced by Coriaria Lactone is still unclear.OBJECTIVE: Considering rat hippocampal pyramidal neurons as target,we investigate the effect of Coriaria Lactone on neuronal Ca2+-activated K+ channels in epilepsy induced by Coriaria Lactone.DESIGN: Randomized controlled experimental trials.SETTING: Department of Neurology, West China Hospital, Sichuan University and Institute. of Myocardium Electrophysiology of Luzhou Medical College.MATERIALS: This experiment was carried out in Luzhou Medical College, Sichuan Province, from May to December 2000. Totally 100 Wistar infant rats within 24-hour ages were selected.METHODS: Wistar infant rats were anaesthetized and its hippocampus was obtained under disinfected state, pyramidal neurons were cultured for 7-10 days, neurons growing well with typical shape model were colleted normal control group, 19 dishes were added with DMEM culture medium,given different membrabe voltage and then followed by adding in te3 subgroups with 8 dishes each one. Added seperately DMEM culture medium containing f0-8, 10-7, 10~ mol/L concentration of calcium ion, and 2.0 mL/L Coriaria Lactone induced epilepsy group: added with DMEM culture medium with different dosages of Coriaria Lactone and finally tetraethylamine in each concentration of 26 dishes for totally 130 dishes.Cell-attache method and inside-out method of patch-clamp technique were used to record the neuronal single channel electricity. The open probability, average opening hour and closing hour, electric current amplitude of channel were analyzed.activated K+ channels of pyramidal neurons at normal, various membrane To observe and record the influence of Coriaria Lactone on the activation of pyramidal neuronal cell membrane, as well as the role of tetraethylamine.were only small amount of pyramidal neurons randomly opening its Ca2+-activated K+ channels and it displayed obvious voltage-dependent property.The channel electric conductance was (122.79±21.68) pS. The channels the inside-out condition, Ca2+-activated K+ channel displayed calcium iondependent property. The average opening rate was 0.022±0.006, 0.040±0.007, 0.142±0.049 when the calcium concentration was 10-8, 10-7,aria Lactone could increase the opening rate of Ca2+-activated K+ channels when the free calcium ion in bath solution was 10-8 mol/L and memLactone, 1.0 mL/L Coriaria Lactone could increase the average opening time of Ca2+-activated K+ channels (1.867±0.210, 6.900±0.120, P ＜ 0.01), and reducing the average closing time (78.505±7.192,6.233±0.854, P ＜ 0.01).CONCLUSION: In epilepsy induced by Coriaria Lactone, the activation of Ca2+-activated K+ channels might play an important role of negative modulation.

Objective To explore the symptoms of anxiety,family structure,and the distribution features of family about in-patients.And to find out the influence of the family structure on in-patients' symptoms of anxiety.The results would provide evidentiary support and suggestions for in-patients to improve quality of life and for prevention and intervention of anxiety.Methods Family table was used to register the family structure which was classified as the nuclear family,stem/expended family and other classification.The anxiety of in-patients was measured by self-rating anxiety scale.Results A total of 512 cases of in-patients completed the survey,there were 483 valid questionnaires.The rate of effective questionnaire was 94.34％.In family structure of in-patients,core family accounted for 48.65％,stem/expended family was 36.85％.The sex of family structure showed significant difference,the female proportion of the nuclear family was significantly higher than male.Among all in-patients,78.05％ did not have anxiety,low-level,medium-level,and severe anxiety showed no significant differences.The effects of anxiety on family structure had significant differences.The anxiety level of stem family was relatively higher.Conclusions Economic development and the population flow due to industrialization and globalization changed family structure of our country,especially in coastal de-velopment cities with fast economic development,fast-paced and stressful work,and it may affect the influ-ence of Chinese traditional family structure on anxiety of the in-patients.

Objective To investigate the clinical value of the massive transfusion protocols (MTP) in abdominal surgical patients with traumatic shock.Methods An analysis was made on the clinical data of patients before and after the use of MTP,including the general condition,amount of blood transfusion,transfusion components and ratio,blood and coagulation function test,and blood transfusion related complications and mortality.Results Before implement of MTP,the average RBC transfusion in the first 24 hours was 19.5U,FFBwas 12.6U,and the ratio ofRBC ∶ FFB was 1.55 ∶ 1.After implement of MTP,the average RBC transfusion in the first 24 hours was 17.3 U,and the ratio of RBC:FFB was 1 ∶ 1.There were no significant statistical differences between the two groups about PT,APTT,Hb and PLT on admission.After 24 hours of admission,there was no significant difference in Hb between the two groups,there were significant differences of PT,APTT and PLT.Blood transfusion related complications were 11 (14.9％) in control group and 7 (11.9％) in MTP,group,and the mortality was 9.46％ and 6.78％ respectively.Conclusions MTP improves blood coagulation function,reduces blood transfusion and enhances survival rate of abdominal surgical patients with traumatic shock.

Objective To investigate the inhibition effect of Ki67 AS-ODN on pr ostate carcinoma PC-3 cells,and its possible synergism existing in combination of Ki67 AS-ODN and paclitaxel.Methods Ki67 AS-ODN were transfected into PC-3 cells by lipofectamine. Cell proliferation was measured by CCK8 method,and Ki6 7 mRNA expression was detected by RT-PCR. The synergetic effect of Ki67 AS-ODN combined with paclitaxel was evaluated by Zhengjun Jin Q method. Results AS-OD N at the concentration of 31.25 nmol /L can significantly inhibit PC-3 cells pr oliferation(P

In the past few decades, our understanding of platelets has made great progress. Platelets play an unexpected central role in cancer and greatly affect the behavior of cancer cells. At the same time, the physiology and phenotype of platelets are also affected by cancer cells. Therefore, platelet-based tumor targeted therapy strategies have attracted the attention of researchers, but the limitations of their application require more attention. In this paper, the strategies of platelet-based tumor targeted therapy are summarized, and the strategies of platelet mimicking nanocarrier delivery, platelet hitch riding, platelet membrane coating biomimetic and engineered platelet targeting are mainly introduced. The easy activation, hard storage and unknown functional and phenotypic changes of platelets were discussed. At the same time, the strategy of platelet-based targeted tumor therapy is reviewed from theoretical basis and practical application. The development potential of platelets in the field of tumor diagnosis and treatment is discussed, which will provide some theoretical reference for the study of platelet-related tumor diagnosis and targeted therapy.

Background: and Purpose: Contrast enhancement of the oculomotor nerve in MRI was recently noticed in patients with clinical ischemic isolated oculomotor nerve palsy (iIONP). The opinions about whether this is a sign of inflammation and whether or not to administer steroids vary between doctors. The study aimed to determine the associations between this enhancement and vascular-disease risk factors (VRFs) and inflammatory factors in iIONP patients. Methods: The study recruited patients who had experienced iIONP during the previous 2 years. They were divided into groups A and B based on whether or not they exhibited an enhanced oculomotor nerve in MRI of the cavernous sinus using thin-section, fat-suppressed, and contrast-enhanced sequences. VRFs, inflammatory factors, and improvement scores were compared between the two groups. Results: Most (71.1%) of the 45 included iIONP patients had enhanced oculomotor nerves in MRI. VRFs, periorbital pain, elevated C-reactive protein and erythrocyte sedimentation rate, the neutrophil-to-lymphocyte ratio, and the platelet-to-lymphocyte ratio were not significantly associated with the enhancement. Four of the five patients in group A exhibited an elevated cerebrospinal fluid (CSF) IgG synthesis rate. The improvement score of eight patients who received 80 mg of methylprednisolone in addition to the routine therapy was not significantly different from the scores of the other patients (p=0.485). Conclusions More than half of the iIONP patients had an enhanced oculomotor nerve in MRI. A few of them also had elevated CSF IgG synthesis rate, but no further evidence for inflammation was found. The administration of steroids seemed to have no benefit other than increasing the blood glucose level.