Objectives To search for the therapeutic methods of child patients with systemic lupus erythematosus (SLE) and the effect of cyclophosphamide (CTX) for SLE.Methods The 14 child patients with SLE were divided into two groups: CTX impulsion therapy group (6 cases) and prednisone therapy group (8 cases). The paticnts in CTX group were treated by CTX 20-30mg/kg, divided into two days for intravenous drip. There was a interval of 15 days between the two course of treatment. The prodnisone (1mg/kg) were used too at the same time. The patients in prednisone group were treated by prednisone, 2mg/kg. d, per os, tolal for 8 weeks, then reduced the dose gradually.Results The 5 cases get the obvious effect and 1 casc get the effect in 8 waeks in CTX group, total offective rate is 100%. one case is complete remission, 5 cases have effect and 2 cases are not effect, total effective rate is 75% (P

To construct a secretory-expression vector of antimicrobial peptide Bactenecin 7(Bac7),and identify the secretory-expression product in L.lactis MG1363 and its bioactivity.The splicing primers of regulation elements and Bac7 gene,which designed according to codon usage preferences of L.lactis MG1363,were chemically synthesized,and the overlap-extension PCR method was used to splice the full length of Bac7 gene.Then the Bac7 gene was linked to expression vector pMG36e to construct pMG36e/Bac7 vector,and pMG36e/Bac7 was transformed into L.lactis MG1363 by electrophoration.RT-PCR and Western blot assays were applied to investigate the expression of the Bac7 gene in L.lactis,and bioactivity of Bac7 in culture supernatant of L.lactis was tested with plate-diffusion method.The results showed that the Bac7 gene and its regulation elements was amplified and cloned in the vector pMG36e successfully,The secretory-expressed Bac7 in L.lactis MG1363 harboring pMG36e/Bac7 was identified by Western blot,and it had high bacteriostatic activity against E.coli.These results indicate that the recombinant L.lactis MG1363 could express bioactive Bac7,which lays a foundation for further study of oral administration of a Bac7-secreting L.lactis to treat intestinal bacteria infection.

Adult ; Aged ; Carcinoma, Non-Small-Cell Lung ; pathology ; radiotherapy ; Female ; Humans ; Lung Neoplasms ; pathology ; radiotherapy ; Lymphatic Metastasis ; Male ; Middle Aged ; Neoplasm Recurrence, Local ; Radiotherapy, Conformal ; methods ; Remission Induction

OBJECTIVETo investigate the relationship between phenotype transformation and biomechanical properties of detrusor smooth muscle cell (DSMC) subjected to the cyclic mechanical stretch.

METHODSCultured rat DSMCS were grown on collagen-coated silicone membranes and subjected to continuous cycles of stretch-relaxation. All experiments were made on cells between passage 2 and 4. Each cycle consists of 5-second stretch and 5-second relaxation. The computer controlled vacuum induced 10% (I), 20% (II) and 30% (III) maximum elongation of the plate membrane at different designed pressures. We assessed DNA synthesis rate using tritiated thymidine incorporation assay. Using immunofluorescent assay and flow cytometer, we analysed the expression of SM-alpha-actin and proliferation of DSMC. The image analysis and micropipette aspiration systems were employed to investigate the single cell contraction and viscoelasticity. The elastic modulus K(1), K(2) and viscoelastic coefficient micro were determined using the three-element standard linear solid model, thus demonstrating the passive deformation ability of detrusor cells.

RESULTSAs the basic structural changes to mechanical stretch, DSMCs underwent phenotypic modulation from their normal contractile phenotype to a "synthetic" phenotype: the DSMCs became more proliferative and the actin less organized along the cell's long axis. The cell proliferation index (CPI) of control and stretched group (10%, 20%, 30% elongation) were 0.24, 0.43, 0.58 and 0.65 respectively. After mechanical stretch, the well-spread filaments changed their orientation. Contraction and viscoelasticity of single DSMC subjected to stretch both decreased significantly compared to control. The Vmax and. DeltaLmax of group III (30% elongation) saw significant decreases compared with unstretched control (P < 0.01). K(1) and K(2) decreased with the increasing of mechanical overload, however, there was no statistic difference between groups II and group III.

CONCLUSIONSStructure determines function. Conversely, dysfunction implies the structural transformation. Functional abnormalities of BOO have the structural basis: phenotype transformation of detrusor cells. Cyclic stretch and relaxation applied to DSMCs in vitro can be used to model the increases in urodynamic load experienced by the bladder detrusor muscle under the conditions of bladder outlet obstruction. Phenotypic transformation is the structural basis of functional changes of DSMC subjected to periodic overload mechanical stretch.

Animals ; Biomechanical Phenomena ; DNA ; biosynthesis ; Muscle, Smooth ; physiology ; Phenotype ; Rats ; Rats, Wistar ; Stress, Mechanical ; Urinary Bladder ; physiology ; Urinary Bladder Neck Obstruction ; physiopathology

Objective To explore the activated brain region of acute epilepsy in cat model induced by pentylenetetrazol(FFZ)with manganese enhanced-functional MR imaging(ME-fMRI),and evaluate the application of ME-fMRI on localization of the activated brain.Methods Forty cats were divided into 4 groups by random number table method as epileptic A and B groups as well as control A and B groups. Cats of epileptic groups were injected with PTZ(55 mg/kg)intramuscularly,and those of control groups were injected with the saline at same dose.The behavior change in the epileptic and control group A was observed and electroencephalogram(EEG)was also undertaken.Cats of epileptic and control group B were performed ME-fMRI,and the percentage of the enhanced signal intensity was then calculated.Results After injection with PTZ(55 mg/kg)intramuscularly,epileptic seizure was all evoked,and then EEG recording showed spike-wave and polyspike-wave complexes.The neocortex of cats of epileptic group B was diffusely phanero-enhanced on ME-fMRI.The percent enhancement of signal intensity in cortex of frontal lobe,parietal lobe and occipital lobe was(34.6?5.7)% and that in cortex of temporal lobe with(22.9? 6.5)%,whereas those of control group B with(14.9?4.5)% and(11.6?3.2)% respectively.And there was significant difference between the above different localization of the brain in the two groups (t=-10.43,-5.46 respectively,P

OBJECTIVETo explore the incidence of dementia among elderly people in Xi'an and its related risk factors.

METHODSSubjects that had been studied on the prevalence of dementia were follow-up, and the incidence of dementia, Alzheimer disease (AD) , and vascular dementia (VD) were counted by person-years. The clinical diagnosis on dementia,AD and VD were based upon the 3rd Edition of Diagnostic and Statistical of Manual of Mental Disorder, Revised version (DSM-III-R) and NINCDS-ADRDA criteria.

RESULTS2197 subjects of non-dementia being identified in 1998, were re-surveyed in 2001. Out of them, 47 new cases of dementia including 37 cases of AD and 8 cases of VD were identified, with an annual incidence rates of dementia, AD and VD as 0.68%, 0.54% and 0.12% among those of 55 years and over and 0.89%, 0.69% and 0.17% in 65 years and over, respectively. Analysis from single factor logistic regression showed that age and education but not gender were closely related to the occurrence of AD. On the contrary, age, hypertension and stroke were closely related to the occurrence of VD.

CONCLUSIONThe incidence of dementia in the "Xi' an cohort" was similar to that being reported from other countries. AD and VD were an age-related diseases but education seemed to have had great protective effect while lack of formal education served as risk factor to AD.

Age Distribution ; Aged ; Aged, 80 and over ; China ; epidemiology ; Dementia ; classification ; epidemiology ; Educational Status ; Female ; Follow-Up Studies ; Humans ; Logistic Models ; Male ; Middle Aged ; Multivariate Analysis ; Risk Factors ; Sex Distribution

Cell Line, Tumor ; Gene Silencing ; Hep G2 Cells ; Humans ; RNA, Small Interfering ; STAT3 Transcription Factor ; genetics

OBJECTIVETo isolate breast cancer stem cells from breast cancer patients and identify their biological characteristics.

METHODSMammospheric cells were purified and enriched from the tumor tissues of breast cancer patients using mammosphere culture. Their expressions of CD44 and CD24 were analyzed by flow cytometry, and ALDH1, ESA and Oct4 expressions were determined by Western Blotting. The primary mammospheric and adherent cells, at the density of 2×10(4), 2×10(5) or 2×10(6), were inoculated into NOD/SCID mice to observe their tumorigenic and metastatic activities.

RESULTSWith mammosphere culture method, 62.36% of the mammospheric cells showed CD44(+)/CD24(-/low) phenotype. The expressions of ALDH1, ESA and Oct4 in the mammospheric cells were significantly higher than those in the adherent culture-derived breast cancer cells (P<0.05). Primary mammospheric cells were at least 100-fold more tumorigenic than the adherent cells; the mammospheric cells were associated with liver or lung metastases, but the adherent cells were not.

CONCLUSIONMammosphere culture can be employed to obtain breast cancer stem cells from the tumor tissues of breast cancer patients.

Adult ; Animals ; Aryldialkylphosphatase ; metabolism ; Breast Neoplasms ; pathology ; CD24 Antigen ; metabolism ; Cell Culture Techniques ; methods ; Female ; Humans ; Hyaluronan Receptors ; metabolism ; Isoenzymes ; metabolism ; Mice ; Mice, Inbred NOD ; Mice, SCID ; Middle Aged ; Neoplastic Stem Cells ; cytology ; metabolism ; Octamer Transcription Factor-3 ; metabolism ; Primary Cell Culture ; Retinal Dehydrogenase ; metabolism

OBJECTIVETo study the new characteristics on diagnosis and treatment of renal tuberculosis (RT).

METHODSEighty-seven patients with renal tuberculosis were retrospectively reviewed; their diagnosis was established by standard microbiological and histological techniques.

RESULTSAtypical RT was diagnosed by various examinations, including urinary analysis, polymerase chain reaction of tuberculosis (PCR-TB), ultrasonography, intravenous urography (i.v.U), and computerized tomography (CT). Treatment consisted of antituberculous chemotherapy in all patients, in combination with nephrectomy (62.5%) or enterocystoplasty (4.6%).

CONCLUSIONSThe differential diagnosis of RT should be emphasized, especially for atypical RT, provided a much more specific diagnosis in clinical suspicion of RT. i.v.U can not be regarded as a specific examination for RT. Computerised tomography (CT) can be used for early diagnosis of RT. Surgery for RT is still ablative.

Adolescent ; Adult ; Aged ; Diagnosis, Differential ; Female ; Humans ; Male ; Middle Aged ; Tuberculosis, Renal ; diagnosis ; therapy

OBJECTIVETo summarize the experience of surgical therapy in a series of 438 patients with intracranial aneurysms.

METHODSA retrospective analysis was made on the clinical data of 438 patients, in terms of the perioperative management, timing of surgery, surgical skills, and The HUNT-HESS grade.

RESULTS438 patients with 476 aneurysms underwent microsurgery, in which 450 aneurysms were clipped, 14 were wrapped, 8 were isolated,4 were cut. 32 aneurysms were ruptured (6.72%) during the operation. The relation between Hunt-Hess scale and mortality is significant postpone operation (> or =7 d) has got a better curative effect than the early.

CONCLUSIONSMicrosurgical treatment is a confirmed effective method with intracranial aneurysms. The higher of HUNT-HESS grade will result to the worse clinical outcome.

Adolescent ; Adult ; Aged ; Child ; Female ; Humans ; Intracranial Aneurysm ; mortality ; surgery ; Male ; Microsurgery ; methods ; Middle Aged ; Neurosurgical Procedures ; methods ; Prognosis ; Retrospective Studies ; Treatment Outcome