Objective To explore the expression of tumor necrosis factor(TNF) ligand-related molecule-1A(TL1A) in mice with viral myocarditis(VM) and the role of astragaloside.Methods Fifty-five male Balb/c mice were randomly divided into 4 groups:control group,model group,low-dose intervention group and high-dose intervention group.Mice in model group,low-dose intervention group and high-dose intervention group were inoculated with 0.1 mL coxsackie B3 virus intraperitoneally.Then,mice in low-dose intervention group and high-dose intervention group were treated with 10 g?L-1 and 90 g?L-1 astragaloside solution,respectively.Mice in control group and model group were treated with 0.1 mL carboxymethycellulose solution.All mice were killed on the 15thday.Histological cross sections of heart were stained with hematoxylin-eosin and myocardial histopathologic scores were counted under optical microscope.The expressions of myocardial TL1A mRNA and protein were detected by reverse transcription polymerase chain reaction and immunohistochemistry.Results The mortality were 0,46.7%,40.0% and 13.3% in control group,model group,low-dose intervention group and high-dose intervention group,respectively.Compared with model group and low-dose intervention group,the mortality was significantly lower in high-dose intervention group(?2=9.46,8.95,Pa

Objective To investigate the role of electromyography(EMG) in diagnosis of nervous system diseases in children.(Met)-hods EMG tests were carried out in 354 patients with nervous system diseases,and the data and results of EMG tests were analyzed.Results One hundred and sixty-six patients′ results of EMG were abnormal.Among these abnormalities,36 cases were myogenic,47 cases were neurogenic,abnormalities of 69 cases were located in peripheral nerves,3 cases got positive in repetitive nerve stimulation(RNS),and 11 cases were on the borderline.In 36 myogenic patients,clinical diagnosis were as follow: progressive muscular dystrophy(PMD,18 cases),polymyositis(2 cases),mitochondrial encephalomyopathy(1 case), and the other 15 cases had no definite diagnosis.In 47 neurogenic patients,the diagnosis were spinal muscular atrophy(SMA,29 cases),sequela of poliomyelitis(2 cases),acute transverse myelitis(ATM,4 cases),and the other 12 patients had no definite diagnosis.In 69 cases of peripheral nerve abnormality,diagnosis were injury of brachial nerve(23 cases),hereditary motor sensory neuropathy(HMSN,2 cases),Guillain-Barre syndrome(GBS,9(ca)-ses),chronic inflammatory demyelinating polyradiculoneuropathy(CIDP,1 case),injury of facial nerve(4 cases),injury of common(pe)-roneal nerve(6 cases),metachromatic leukodystrophy(MLD,1 case),and the other 23 patients had no definite diagnosis.Three patients who got RNS positive were all diagnosed myasthenia gravis(MG),and ocular type(1 case),general type(2 cases).Eleven patients whose EMG results were borderline were all diagnosed indefinitely.One hundred and eighty-eight patients had normal results of EMG test.The diagnosis of these patients were included ocular MG(21 cases),cerebral palsy(CP,5 cases),ATM(2 cases),polymyositis((1 case)),and some other nervous system diseases(21 cases),and the other 138 were diagnosed indefinitely.Conclusions 1.EMG plays an important role in definite diagnosis of PMD,SMA,poliomyelitis and nerve injury;2.EMG can provide clue or basis in the differential(dia)gnosis of nervous system diseases which involved lower motor unit;3.EMG test has very low positive results in children with MG;(4.EMG) has little help in diagnosis of diseases involved upper motor unit only.

Selection and affinities of Cd binding peptides were assayed by phage random dodecapeptide library and affinity chromatography. Two Cd binding peptides were obtained, it was found that the affinities of Cu~ 2+ ,Co~ 2+ ,Zn~ 2+ ,Ni~ 2+ for Cd binding peptides were higher than that of Cd~ 2+ and Cr~ 2+ after detection of the amplified Cd binding peptides displayed phages to different heavy metal-charged resins; the detoxification of E.coli to Ni~ 2+ and Cd~ 2+ was enhanced when infected by Cd binding peptide displayed phages as compared with those of the control. The interaction of Cd binding peptide displayed phages with heavy metals charged resins was also observed under microscope. The work would be of great value and consequences for the study of interaction between heavy metals and proteins(peptides), as well as thedetoxification and bioremediation of heavy metals.

Background The aspheric intraocular lenses(IOLs)can reduce ocular spherical aberration to some degree.However,the clinical effect depends more on the IOL proper alignment.It becomes more important to study the IOL position in eye,Objective This study was to analyze the position alteration of IOL after phacoemulsification combined with implantation of one-piece soft IOLs.Methods In this prospective control study,80 eyes of 40 patients with age-related cataract were enrolled.The phacoemulsification with IOL implantation was performed in all the eyes.Decentration and tilt of IOL in the nasal superior,superior temporal,inferior temporal and nasal inferior quadrants(the intersection point of the system optical axis and the IOL maximum cross plane were regarded as the ordinate origin)were measured by rotating Scheimpflug camera(Pentacam Oculus)in 3 months postoperatively under the mydriasis condition.Written informed consent was obtained from each subject prior to this trial.Results In the right eye group,the IOL decentered toward temporal in 26 eyes(65％)and infratemporal in 16 eyes(40％).IOLs tilted temporally in the horizontal plane in 37 eyes(92.5％)and tilted inferiorly in the vertical plane in 34 eyes(85.0％).In the left eye group,IOLs decentered temporally 33 eyes(82.5％)and 20 IOLs (50％)infratemporally,IOLs tilted temporally in the horizontal plane in 37 eye(92.5％)and 36 IOLs(90％)tilted inferiorly in the vertical plane.There was no statistical difference for the intercomparsion of horizontal/vertical decentration in various quadrant in the right eye(F =0.221,0.792,P＞0.05).The obvious elevated horizontal decentration was found in the supertemporal and infratemporal quadrants compared with supernasal quadrant in the left eyes but there was no significant difference in the vertical decentration among 3 quadrants(F=0.576,P＞0.05).Decentrations were positively correlated with the tilt in both horizontal and vertical plane(right eye horizontal plane:r=0.374,P=0.002;right eye vertical plane:r=0.402,P=0.001 ;left eye horizontal plane:r=0.377,P=0.002；left eye vertical plane:r=0.347,P=0.002).Conclusions The one-piece soft IOLs(Adapt AO)decenter toward temporal mostly in 3 months after surgery,especially infratemporally in the eye.And the optical axis of the IOL tilt toward infratemperol mostly in both right and left eyes.The decentration and tilt are consisted in the corresponding direction between the right and left eyes.The position of the IOLs showed mirror symmetry between right and left eyes.The IOLs decentration show the positively correlation to tilt whatever in horizontal and vertical plane.

Objective: To observe the changes of liver metabolism in mice exposed to artificial light at night. Methods: Healthy male C57BL/6J mice were randomly divided into the light at night group and the control group, with 8 mice in each group. The daily light/dark cycle was 12/12 hours in the control group, and 24/0 hours in the light at night group for 10 consecutive days. The hepatic metabolite profiles of the two groups of mice were detected by high performance liquid chromatography tandem mass spectrometry. The modelling was assessed by combining principal component analysis (PCA) and orthogonal partial least squares-discriminant analysis ( OPLS-DA ) , The changes of metabolites in the two groups were compared through KEGG database. Results: Compared with the control group, 9 different metabolites were detected in the light at night group, among which the down-regulated metabolites were glycine-betaine, glutathione, tyrosine, betaine, lysine, hypoxanthine, histidine and methionine, and the up-regulated ones were mannose-6-phosphate. The weight analysis of the metabolic pathways showed that the major influences on liver of light at night group were phenylalanine-tyrosine-tryptophan metabolism, tyrosine metabolism, fructose and mannose metabolism, cysteine and methionine metabolism and histidine metabolism. Conclusion The metabolism of various amino acids and sugars in light at night mice is disturbed,and the key differential metabolites are tyrosine, methionine, histidine and mannose-6-phosphate.

Twenty Newcastle disease virus(NDV)strains were isolated from diseased chicken and geese in field outbreaks during 2005 and 2006 in some regions of Jiangsu and Guangxi,and the antigenic analysis of the all NDV isolates had been done based on the reaction spectrum with a panel of monoclonal antibodies to the HN glycoprotein.The entire ORFs encoding HN protein of these NDV isolates were amplified by RT-PCR successfully,cloned and sequenced.The resultant sequences of HN genes of 13 isolates of chicken origin and 7 isolates of goose origin were gained and analyzed.The results of reaction spectrum showed that there were some distinct differences in the antigenic epitopes among the 20 NDV isolates.And the sequences revealed that the coding regions of the HN genes of these isolates all consisted of 1716 nt characteristic of virulent strains of NDV,coding for 571 amino acids.Neucleotides sequence homology were found to be from 94.8%to 100%among 18 NDV isolates of genotypeⅦ,and the neucleotides sequence homology between all the isolates and the other genotypeⅦstrains of recent years in China ranged from 92.1%to 99.6%.The deduced amino acid sequences and the receptor-binding regions of HN proteins between the NDV isolates of chicken origin and of goose origin were compared and analyzed.The results showed that some unique amino acid substitutions were found in the genome of the NDV isolates,and the close genetic similarity provided evidence for epidemiological linkage between the NDV isolates of chicken origin and of goose origin in the same period.

OBJECTIVETo investigate the interface bond and thermal compatibility between Mark II machining ceramic and Vita VM9 veneering porcelain.

METHODSA bar shaped specimen (30 mm x 15 mm x 1 mm in size) of Mark II block was prepared, with 0.5 mm-deep notch (vertical to the long axis of specimen) at the middle of the bottom surface. The upper surface was veneered with 0.3 mm VM9 dentin base porcelain. Then the specimen was fractured from the notching site and the fracture surface was examined under scanning electron microscope (SEM) and electron microprobe analyzer (EMPA) with electron beam of 1 microm in diameter. Another ten specimens (30 mm x 15 mm x 1.5 mm in size) were fabricated and the temperature of thermal shock resistance were tested.

RESULTSSEM observation showed tight bond between these two materials and EMPA results showed penetration of Al element from Mark II block into veneering porcelain and Ca element from veneering porcelain into Mark II block occurred after sintering baking. The average temperature of thermal shock resistance for specimens in this study was (194.0+/-10.3) degrees C. Cracks were mainly distributed in veneering porcelain.

CONCLUSIONChemical bond exists between the Mark II machining ceramic and Vita VM9 veneering porcelain, and there is good thermal compatibility between them.

Ceramics ; Dental Alloys ; Dental Porcelain ; Dental Stress Analysis ; Dental Veneers ; Materials Testing ; Shear Strength ; Zirconium

OBJECTIVETo establish a hepatic metastatic subline of nasopharyngeal carcinoma (NPC) cell line.

METHODSNPC cells metastatic to the liver were isolated from nude mice and the invasion and metastatic ability of the cells was observed in vivo and in vitro.

RESULTS AND CONCLUSIONThe invasion and metastasis activity of 5-8F-H3B-EGFP (an in vivo isolate with enhanced liver metastatic behaviors) were enhanced obviously in comparison with the parent cell line 5-8F-EGFP. This subline may be useful for cloning genes related to liver metastasis of NPC.

Animals ; Carcinoma, Squamous Cell ; genetics ; metabolism ; secondary ; Cell Line, Tumor ; Cell Proliferation ; Cell Survival ; Disease Models, Animal ; Female ; Green Fluorescent Proteins ; genetics ; metabolism ; Humans ; Keratins ; analysis ; Liver Neoplasms, Experimental ; genetics ; metabolism ; secondary ; Male ; Mice ; Mice, Inbred BALB C ; Mice, Nude ; Nasopharyngeal Neoplasms ; genetics ; metabolism ; pathology ; Neoplasm Metastasis ; Neoplasm Transplantation

Objective To analyze the classification,MR manifestations,and the pathological basis of solitary necrotic nodule of the liver(SNN)in order to evaluate MRI as a diagnosing tool Methods The MR appearances of 9 cases with pathologically proved SNN were analyzed and correlated with the classification and pathological appearances.Relevant literature was reviewed.Results(1)Simple coagulative necrosis type(5 cases):The signal of lesions was hypo-intense or iso-intense on both T_1-and T_2- weighted images.After Gd-DTPA administration,the internal part of the lesions showed no enhancement,while the thin capsule of the lesions demonstrated mild or moderate delayed enhancement. These lesions,proved by pathology,were composed of central coagulative necrotic core and a peripheral hyaline fibrosis capsule.(2)Coagulative necrosis aceompanied by liquefactive necrosis type(1 case):On T_1-weighted images,the signal of hypo-intensity was found within these lesions and even lower signal intensity was found in the central area of larger lesions.On T_2-weighted images,the lesions had a bright core and a peripheral hypointensive or isointensive area.After Gd-DTPA administration,the internal part of the lesions showed no enhancement,while the thin capsule of the lesions demonstrated mild or moderate delayed enhancement.These lesions had a central coagulative necrosis core interleaved by slit- like liquefactive necrosis foci,and peripherally a thin capsule of hyaline fibrosis proved by pathology.(3)Multi-nodular fusion type,(3cases):On T_1-weighted images,the lesions were of hypointensive or isointensive signal and had multiple septa of isointensive signal.On T_2-weighted images,the lesions were of hypointensive or isointensive signal and had multiple septa of hyperintensive or isointensive signal.After Gd-DTPA administration,No enhancement was found except mild or moderate delayed enhancement found in the thin capsule and septa.These lesions were composed of central coagulative necrosis area and a peripheral hyaline fibrosis capsule with multiple internal septa proved by pathology.Conclusion MRI apperances can reflect the classification and pathological features of solitary necrotic nodule of the liver.

OBJECTIVETo observe the effect of Chinese medicine (CM) comprehensive regimen as the maintenance therapy (MT) on time to progression (TTP) and quality of life (QOL) of patients with advanced non-small-cell lung cancer (NSCLC).

METHODSThe study was a prospective, randomized and controlled clinical trial. Fifty non-progressive patients with advanced NSCLC who responded to first-line therapy were randomized into the test group (25 cases, treated with CM comprehensive regimen: intravenous dripping of Chinese herbal preparation, oral administration of Chinese herbal decoction, and point application) and the control group [25 cases, treated with one of three single-agent maintenance chemotherapy regimens: pemetrexed (500 mg/m2, day 1), docetaxel (75 mg/m2, day 1), and gemcitabine (1000 mg/mi, day 1 and day 8) in the ratio of 1:1]. Each cycle consisted of 21 days. Cycles were repeated until the disease progressed, or intolerable toxic or adverse reaction occurred, or patients refused to continue the treatment. The primary end point was TTP and the secondary end point was QOL. QOL was evaluated using the European Organization for Research and Treatment of Cancer quality-of-life questionnaire QLQ-LC43 (EORTC QLQ-LC43). TTP of fifty patients and QOL of 43 patients had been statistically analyzed.

RESULTS(1) The TTP in the test group was prolonged for 23 days when compared with that of the control group, with insignificant difference (87 days vs 64 days, P=0.063). (2) The scores of domains in EORTC QLQ-LC43 were statistically significantly better in the test group than in the control group (P<0.05) except cognitive and social functions, the symptoms of dysphagia and pain in other parts.

CONCLUSIONS(1) The CM comprehensive regimen as MT had equivalent efficacy on TTP when compared with single-agent maintenance chemotherapy regimen. It was advantageous over improving the QOL. (2) It is necessary to enlarge the sample size to further confirm the therapeutic efficacy of CM comprehensive regimen as MT in treatment of patients with advanced NSCLC.

Adult ; Aged ; Carcinoma, Non-Small-Cell Lung ; pathology ; therapy ; Combined Modality Therapy ; Disease Progression ; Female ; Humans ; Lung Neoplasms ; pathology ; therapy ; Male ; Medicine, Chinese Traditional ; methods ; Middle Aged ; Neoplasm Staging ; Prospective Studies ; Quality of Life ; Treatment Outcome