Objective To compare the value of ELISA and indirect immunofluorescence (IIF)method in diagnosis for autoim-mune diseases.Methods A total of 33 patients in systemic lupus erythematosus(SLE)group,59 patients in other autoimmune dis-eases group,43 patients in non-autoimmune disease group,20 people accepted physical examination in control group.The antinuclear antibody (ANA)in each group were detected by two methods and analyzed.Results The high titer ANA detected by ELISA and IIF in SLE group and other autoimmune diseases group were (2.621±1.700),(2.248±1.781);(2.71 5±0.730),(2.544±0.59). The titer ANA detected by ELISA in non-autoimmune disease group was (1.034±1.050),which was lower than(2.253 ±0.691) detected by IIF.Conclusion ELSA might improve the detection effects of ANA antibody.

Objective: To study the effect of immune regulation of the rat Sertoli cells in testis infection. Methods: UU and Escherichia coh'(E coli) were injected into the bladders of rats, which mimics the ascending infection pathway, while using culture medium injection as control. After 1 week, 2 weeks, 3 weeks respectively, the rats were sacrificed to observe the pathological changes in testis section. Sertoli cells were separated and obtained from rat testis, then experiments were designed to use the immunohistochemical staining to examine the different level of IL-1, IL-6, TGF-P and FasL among control ,UU and E coli infected groups.Results:Compared with control, in UU and E.coli infected group, the level of IL-1 increased ,the level of IL-6 decreased, the levels of TGF-P and FasL increased. Conclusion: Sertoli cell can play the role of immune regulation, with the expressing changes of IL-1, IL-6, TGF-P and FasL in the infection of testis in rat.

ObjectiveTo investigate the effects of comprehensive psychotherapy on depression,anxiety and gastrointestinal reactions in patients with lung or breast cancer.Methods96 cases with lung or breast cancer were randomly divided into psychotherapy group(n=48) and control group(n=48) which were both treated with routine chemotherapy.Those in the psychotherapy group concomitantly received comprehensive psychotherapy for 2 weeks.Their characters of Symptom Checklist 90(SCL-90) were measured,while those of Self-rating Anxiety Scale(SAS) and Self-rating Depression Scale(SDS) were also measured before and after treatment.ResultsThe scores of SCL-90 in patients with lung or breast cancer were increased compared with Chinese norm in somatization,depression,anxiety,phobic anxiety(P<0.01).From the 3rd week,the scores of SDS(41.2±3.7) and SAS(34.6±5.8) in the psychotherapy group were significantly lower than those in the control group(P<0.01),as well as the gastrointestinal reactions.ConclusionPsychotherapy can obviously decease the severity of depressive and anxious emotions and the gastrointestinal reactions.

Objective To investigate the diagnostic value of nuron specific enolase( NSE),S100βprotein,glial fibrillary acidic protein( GFAP)and myelin basic protein( MBP)in patients with early brain contusion and laceration. Methods One hundred and twelve cases with brain contusion and laceration diagnosed by CT or MRI were selected as our subjects who hospitalized Harrison international peace hospital from Apr. 2012 to Jul. 2013. Of them,68 cases with mild head injury were served as mild group and 44 cases of severe traumatic brain injury were served as severe group. And 83 healthy people without lung disease and nervous system diseases were served as control group. Electro chemiluminescence assay and ELISA methods were used to measure the level of NSE,S100β,GFAP,MBP. Results the level of serum NSE,S100β protein,GFAP and MBP in mild group were(18. 14 ± 6. 83),(0. 92 ± 0. 45),(0. 78 ± 0. 37))(4. 37 ± 1. 84)μg/ L,respectively, and(32. 11 ± 12. 48),(1. 58 ± 0. 94),(4. 26 ± 1. 96),(14. 72 ± 6. 77)μg/ L,respectively in severe group, and(8. 94 ± 3. 49),(0. 12 ± 0. 08),(0. 13 ± 0. 09),(1. 98 ± 0. 89)μg/ L,respectively in control group. There were significant differences among three groups( F = 137. 520,120. 083,283. 727,205. 569 respectively;P< 0. 01). All indexes were different between control and mild groups( q = 10. 599,13. 296,5. 881,6. 018;P< 0. 01),as well as between the mild and severe groups(q = 13. 600,9. 249,26. 639,22. 029;P < 0. 01),and between control and severe group(q = 23. 408,21. 258,32. 797,28. 134;P < 0. 01). Conclusion The level of serum NSE,S100β,GFAP,MBP can be used as early indicators of brain injury secondary diagnosis and secondary index for evaluating damage degree.

Objective To investigate the diagnostic value of the combined detection of serum glial fibrillary acidic protein (GFAP)and myelin basic protein (MBP)in the patients with early brain contusion and laceration.Methods ELISA was adopted to detect serum GFAP and MBP.The one-way ANOVA analysis was adopted to conduct the comparison among groups and the q test was adopted to conduct the pairwise comparison for analyzing the differences between the brain contusion and laceration patients with the healthy population.Results The serum GFAP and MBP levels had statistically significant differences among the mild craniocerebral injury group,severe craniocerebral injury group and the healthy control (P <0.05);which had statistically signifi-cant differences between the control group and the mild craniocerebral injury group(P <0.05);which had statistically significant differences between the mild craniocerebral injury group and the severe craniocerebral group (P <0.05 );which had statistically significant differences between the control group and the severe craniocerebral injury group (P <0.05).The serum GFAP and MBP levels in the early stage of brain contusion and laceration were significantly higher than those in the control group,moreover,the more severe the injury,the more obvious the increase of serum GFAP and MBP.Conclusion The combined detection of serum GFAP and MBP can be regarded as the auxiliary indexes for the early diagnosis of early brain contusion and laceration and the eval-uation of the injury degree.

Objective To observe the effects of herbal compound in reinforcing the kidney for activating blood and arousing consciousness(HCRAA) on the ABR threshold and the expression of neurotrophic factor 3(NT-3) of the cochlea of gentamicin (GM)-induced ototoxic mice.Methods 40 mice were randomly divided into normal group,model group,and high,middle and low concentration HCRAA groups.Normal group received no treatment.The model group and the HCRAA groups were intraperitoneally injected with GM 100mg/kg per day for consecutive 15 days.At the same time,the model group and the HCRAA groups respectively receiveded normal saline and high,middle and low concentration Chinese medical formula decoction at the same dosage by garage for consecutive 20 days.After the experiment,the mice were tested ABR.The expression of NT-3 of the cochlea in mice was detected by western blot.Results HCRAA at high and middle concentration reduced the GM elevated ABR threshold(P＜0.01),and increased the expression of NT-3 in the cochlea(P＜0.01).Conclusion HCRAA may effectively reduce the elevated ABR threshold induced by gentamycin by protecting GM damaged cochlear hair cell and neurons and increasing the expression of NT-3 in the cochlea.

Objective:To study the isolation, culture and identification of the TMJ cells and to observe the biological characteristics of cultured fibrochondrocytes. Methods:The TMJ discs were dissected from two 1 month goats under sterile conditions and were digested with collagenase. The cells were collected. Morphological changes and attachment efficiency were constantly observed under phase-contrast microscope. Immunohistochemical staining for type I collagen as well as toluidine blue staining were performed. Ultrastructures of the TMJ cells were observed under transmission electron microscope. Results: Most of the primary fibrochondrocytes presented a short spindle-shape while the rest showed polygon-shape. On the 7th day, the perliferating fibrochondrocytes started to contact each other to form a monolayer covering the bottom of the incubation disc. Immunohistochemical staining of type I and toluidine blue staining exhibited positive results. The fibrochondrocytes cytoplasms were rich in mictochondria and endoplasm reticulum. Conclusion: The fibrochondrcytes isolated from one-month-old goat TMJ disc have good proliferation ability in vitro and cells from passage 1 to 3 might be used as seed cells for TMJ disc tissue engineering.

BACKGROUND:There is no common cognition in the cell type in the temporomandibular joint(TMJ)discs,and names describing TMJ disc cells also vary a lot.OBJECTIVE:To characterize the type and the distribution of cells in the TMJ disc of goats DESIGN,TIME AND SETTING:A single sample observation was completed in Cettutar and Motecutar Biologicat Center and Electron Microscope Center of Lanzhou University from March to May in 2007.MATERlALS:TMJ discs were obtained from two one-month-old healthy goats that were slaughtered freshly.METHODS:Bilateral TMJ discs of goats were cut off completely and were divided into 6 parts by 3 cuts in the major axis direction (mediolaterally)and 2 cuts in the minor axis direction(anteroposteriorly).Then the marked samples were fixed in 10%neutral formalin Iiquid for 24 hours and embedded by paraffin.MAIN OUTCOME MEASURES:Hematoxylin and eosin staining were used to identify regional variation of cell type and cellnumbers.Toluidine blue staining and collagen type Ⅰimmunohistochemical assay were performed to test the distribution of collagens.Transmission etectren microscopy was used to observe the ultrastructure of cells of goat TMJ discs.RESULTS:TMJ discs were comprised of cells and collagen fibers distributing unevenly.Collagens were mostly type Ⅰ.Collagen fibers were wave or crimping and approximately parallel to each other.with cells scattered in their matrix.Fibroblast-like cells and chondrocyte-like cells were the main two types of cells existing,with the former predominating over the later in a ratio of 2.05:1 approximately.There were no significant regional differences in cell type and distribution statistically.Transmission electron microscopy denoted that fibroblast-iike cells have fairly larger fusiform or irregular nuclei with very few organelles,while the chondrocyte-like cells exhibited round or elliptical nuclei,well defined pericellular electron lucent zones,unconspicuous cytocysta and non-distinctive pseudopodia CONCLUSION:There are no significant differences in type,number and arrangement of cells in TMJ discs of one-month-old goats statistically,with Fibroblast-like cells predominating slightly over chondrocyte-like cells.

Objective To study the surgery factors on chronic subdural hematoma(CSH)recurrence.Methods Two hundred and thirty-six patients with CSH were treated with trepanation and drainage.It was analyzed retrospectively on location of burr-hole,location of drainage tube,volume of intracranial pneumatocele,residual hematoma and drainage time etc.Results Half hematoma was in 177cases,two sides hematoma was in 59 cases,total was 295 hematomas.Twenty-seven hematomas were recurrent,9 cases were two sides hematoma,and 18 cases were half hematoma.There was no significant difference between recurrence rate and age,sex,drunkenness,hemorrhagic tendency,half or two sides hematoma,location of burr-hole,location of drainage tube,volume of intracranial pneumatocele and residual hematoma(P＞0.05).The recurrence rate was 9.2％(27/295).There was significant difference in recurrence rate between drainage time ≥ 3 d and＜3 d[3.5％(5/143)vs.14.5％(22/152),P＜0.01].In age ≥ 60years patients,there was significant difference in recurrence rate between drainage time ≥ 3 d and＜3 d[3.4％(4/119)vs.16.2％(18/111),P＜0.01].But in age＜60 years patients,there was no significant difference in recurrence rate between drainage time ≥ 3 d and＜3 d[4.2％(1/24)vs.9.8％(4/41),P＞0.05].Conclusion It should be taken more than 3 d of drainage time for old patients with CSH,while shorten time for young patients with CSH.

This article described the application of the phantom system in the experiment teaching of Endodontics.Through the process of teaching,we realized that the way of simulation in the experiment teaching not only can enhance the enthusiasm of students,but also can consolidate the basis of theoretical knowledge and improve the clinical skills of students.The system has become the necessary equipment and means in experimental teaching of modern stomatology.It is worth further promotion and application in dental teaching.