Objective To evaluate the effect of 36-neuro-motorial examination on early diagnosis of children with cerebral palsy within 1 year-old.Methods36-neuro-motorial examination was analysed in 210 children with cerebral palsy from 2 to 12 months. Results4-29 items reflecting the abnormity of reflex, muscle tone, posture and motion were observeed in patients with cerebral palsy.If these abnormities were laid according as frequency among 2-6 months,reflex abnormities are knee tendon reflex, palmar grasp reflex,Babinski sign,asymmetrical tonic neck reflex,ankle clonus,sitting equilibrium reflex,stepping reflex,crossed extension reflex,tonic labyrinthine reflex,trunk incurvation reflex,Moro reflex; posture abnormities are head to back≥15°,from supine to the side position, axillar suspension reflex,posterior neck fovea≥1cm in the supine position,landau reflex,Vojta reflex,traction reflex,tonic torticollis,abnormal spontaneous posture;muscle tone abnormities are foot dorsiflexion angle,scarf sign,tonic palmar grasp,to up the foot heel≥30° in the stand position,thumb decussation to the palm,poples angle,adductor angle,heel-ear angle; others are head cycle≤-2s, squint, active movement attenuation or abnormity, auditory abnormity, visual abnormity, ophthalmodonesis, epilepsy.Conclusions 36-neuro-motorial examination is effective for early diagnosis of cerebral palsy within 1 year.

Objective To evaluate the effects of 131 adrenoceptor anfisense on blood pressure and?1 adrenoceptor mRNA and protein levels in 2 kidney 1 clip(2K1C)rats.Method 2KIC hypertensive rots were produced by clipping renal artery of SD rats.Liposome/AS-ODNs 2.0 were tested intravenously in rats with 2KIC hypertension.Animals were divided into 5 groups(n=18 in each group):?1-AS-ODN group,?1-IN-ODN group,2K1C group,Sham group and SD group.Blood pressure was measured by tail-cuff method,the levels of myocardial?adreneceptor mRNA and protein were tested by RT-PCR and binding assay.Results On the basis of the magnitude and duration of hypotension,?1-AS-ODN decreased blood pressure by 39 mmHg at the most for 4 weeks.Compared with the 2KIC group,?1-AS-ODN did not significantly change the levels of myocardial?1 adrenoceptor mRNA but significantly decreased the levels of myocardial?1 adrenoceptor protein at 2,7,30 days (P

More than one hundred strains of marine molds have been isolated from the sediment and the sample of seawater collected from the South China Sea. By the first screening, more than 30 strains of marine molds which can inhibit tested fungi such as Candida albicans and Fursarium sp. were obtained.The results of the second screening showed those strains designed as B 4#-6、B 4#-3、1-B 6-6、1-B 6-10-5、1-B 6-22、C 2#-5、A 2-9 and 1-B 6-10 can produced extracelluar antifungi metabolic products and the crude extract of the strains 1-B 6-10-5 and B 4#-3 can inhibit the growth of many other species of fungi.

Background Corneal blindness caused by ocular surface disease is one of the main reasons for the global blinding corneal diseases.With the development and progress of tissue engineering technology,tissueengineered cornea offers a new approach to the treatment of ocular surface disease.Objective This study was to obscrve the growth and differentiation of human umbilical cord mesenchymal stem cclls (UC-MSCs) on thc corneal stroma of receipts and investigate the feasibility of human UC-MSCs differentiated into corneal epithelium-like cells and the reparation of injury cornea.Methods Human UC-MSCs were isolated from human umbilical cord using collagenase Ⅳ digestion and passaged in DMEM/F12 containing fetal bovine serum in vitro.The immunophenotype of cultured human UC-MSCs was evaluated by flow cytometry.The differentiated osteoblasts from the human UC-MSCs by directional induce was identified.Twenty-four New Zealand albino rabbits were randomly divided into 2 groups.The human UC-MSCs were cultured on porcine corneal matrix without corneal epithelium for 4 days and then transplanted onto the 12 left eyes of 12 New Zealand albino rabbits,and porcine corneal matrix without corneal epithelium was transplanted onto the left eyes of other 12 New Zealand albino rabbits as control group.The rabbits received keratoplasty were examined using in vivo confocal microscope through focusing(CMTF).The eyeballs were taken off after 2,4 and 8 weeks,the growth and differentiation,expression of cytokeratin 3 (CK3),CK12 and ATP-binding cassette superfamily G memben 2 (ABCG2)of human UC-MSCs were observed by histopathology and immunofluorescence staining.This use of the experimental animals complied with ARVO Statement.Results Digestive human UCMSCs formed round in shape and was large in size.The attached cells displayed long-fusiform shape like fibroblasts.The cultured human UC-MSCs phenotype was CD105+/CD29+/CD44+/CD34-/CD45-and could be induced toward osteoblast differentiation under the appropriate experimental conditions.Human UC-MSCs grew well on the porcine corneal matrix.The corneal grafts survived wcll without rejection till the experiment end in experimental eyes,but the rejection of corneal graft occurred in control eyes.Confocal microscope could observe corneal epithelium-like cells.The corneal epithelium cells showed the positive response for CK3 and CK12 and absent response for ABCG2.Conclusions Human UC-MSCs with porcine corneal matrix can survive,proliferate and differentiate into corneal epithelium-like cells after transplanting onto the corneal stroma of rabbits.This result suggests that human UC-MSCs is able to repair and reconstruct the injured corneal surfaces.

OBJECTIVETo investigate the modification of GSTM1, GSTT1 and GSTP1 gene polymorphisms on urinary 1-hydroxypyrene (1-OHP) excretions in workers under different exposure levels.

METHODSFour hundred and forty-seven occupationally exposed workers from two coking plants and 220 control workers from a wire rod plant were genotyped to analyze the modification of GSTM1, GSTT1 and GSTP1 gene polymorphisms on urinary 1-OHP excretions.

RESULTSThe urinary 1-OHP concentration in exposed group was much higher than that in control group (4.61 vs 0.34 µmol/mol Cr, P < 0.05). Occupational exposure levels and cigarette smoking were of the dominating factors affecting 1-OHP excretions in urine. After controlling potential confounders, decreased excretion of urinary 1-OHP was associated with GSTP1 I105V AG + GG genotype in coke oven workers (single-gene model, P = 0.012; multi-gene model, P = 0.011) and with GSTT1 null type in the analysis including all subjects (P = 0.055 in both single-gene and multi-gene models). GSTT1 and GSTP1 were interacted on the urinary concentrations of 1-OHP.

CONCLUSIONUrinary 1-OHP concentrations can be modified by GSTM1, GSTT1 and GSTP1 gene polymorphisms, indicating that these genes are involved in the metabolism of polycyclic aromatic hydrocarbons.

Adolescent ; Adult ; Control Groups ; Genotype ; Glutathione S-Transferase pi ; genetics ; Glutathione Transferase ; genetics ; Humans ; Male ; Middle Aged ; Occupational Exposure ; Polymorphism, Single Nucleotide ; Pyrenes ; analysis ; Urinalysis ; Young Adult

OBJECTIVETo demonstrate the changes of PAI-1 activity and mRNA expressions induced by tumor necrosis factor alpha (TNF-alpha) or minimally modified low-density lipoprotein (mmLDL) in human umbilical vein endothelial cells (HUVECs).

METHODSThe PAI-1 activity in HUVECs culture medium was measured by chromogenic assay. The PAI-1 mRNA expressions were determined by Northern blot. The mitogen-activated protein kinase-kinase (MAPKK) inhibitor and protein kinase C (PKC) inhibitor were used to intervene the inductions by TNF-alpha or mmLDL.

RESULTSThe PAI-1 activity and mRNA level were increased when HUVECs were exposed to TNF-alpha or mmLDL. The MAPKK inhibitor (PD98059, 60 mumol/L) could markedly inhibit PAI-1 activity and mRNA expression induced by TNF-alpha (100 U/ml) or mmLDL (50 micrograms/ml). But Staurosporine (10 nmol/L) and H7 (15 mumol/L), which were the PKC inhibitors, had no significant inhibition effect.

CONCLUSIONS(1) TNF-alpha or mmLDL could induce PAI-1 activity and mRNA expression in HUVECs. (2) Increase of PAI-1 activity induced by TNF-alpha and mmLDL was related to its mRNA expression. (3) The MAPK pathway may play a role in PAI-1 expression induced by TNF-alpha or mmLDL.

Endothelium, Vascular ; cytology ; metabolism ; Female ; Humans ; Lipoproteins, LDL ; pharmacology ; Mitogen-Activated Protein Kinases ; metabolism ; Plasminogen Activator Inhibitor 1 ; genetics ; metabolism ; RNA, Messenger ; metabolism ; Tumor Necrosis Factor-alpha ; pharmacology ; Umbilical Veins ; cytology

OBJECTIVETo investigate the effects of hydrocamptothecin on the expression of Wnt signaling pathway inhibitor DKK-1 in tumor cells.

METHODSHuman HepG2, Hep3B, LoVo and U251 cells were treated with the antitumor drug Hydrocamptothecin. DKK-1 mRNA expression in the cells was detected with RT-PCR, and beta-catenin expression was measured by fluorescence-activated cell sorting (FACS).

RESULTSDKK mRNA in Hep3B, HepG2, LoVo and U251 cells was significantly increased after hydrocamptothecin treatment for 24 h, and the percentage of beta-catenin-positive cells and fluorescence intensity for beta-catenin expression was lowered in the cells after the treatment.

CONCLUSIONHydrocamptothecin promotes mRNA expression of Wnt signaling pathway inhibitor DKK-1 in Hep3B, HepG2, LoVo and U251 cells.

Antineoplastic Agents, Phytogenic ; pharmacology ; Camptothecin ; analogs & derivatives ; pharmacology ; Cell Line, Tumor ; Colorectal Neoplasms ; genetics ; metabolism ; pathology ; Flow Cytometry ; Humans ; Intercellular Signaling Peptides and Proteins ; biosynthesis ; genetics ; Liver Neoplasms ; genetics ; metabolism ; pathology ; RNA, Messenger ; biosynthesis ; genetics ; Reverse Transcriptase Polymerase Chain Reaction ; Signal Transduction ; drug effects ; Wnt Proteins ; metabolism

OBJECTIVETo develop a new platform for genotyping human papillomavirus (HPV) and to investigate its effect in clinical application.

METHODSA pair of common primers of 18 HPV subtypes for PCR, was designed in HPV conservative L1 region. Genotyping probes for detecting 15 high-risk HPV subtypes 16, 18, 31, 33, 35, 39, 45, 51, 52, 53, 56, 58, 59, 66 and 68, together with 3 low-risk HPV 6, 11 and 42 were selected respectively from Genbank and fixed on membrane to make DNA chip. PCR amplification and DNA chip technology were optimized. 100 clinical samples were used to investigate the effect of HPV genotyping DNA chip. Veracity of the genotyping results was verified by sequencing.

RESULTSFrom the 100 clinical samples, 30 were found to be HPV positive, including high-risk HPV subtypes 16, 18, 33, 45, 51, 58, and 66, and low-risk HPV 6, 11 and 42. The sensitivity tested by standard samples was up to 10 copies of HPV DNA.

CONCLUSIONThe HPV genotyping system developed here with DNA chip showed high sensitivity and specificity, suitable to be applied in clinical practice for HPV diagnosis and investigation on the prevalence of HPV sub-types.

DNA Probes, HPV ; genetics ; DNA, Viral ; genetics ; Female ; Genotype ; Humans ; Molecular Sequence Data ; Oligonucleotide Array Sequence Analysis ; methods ; Papillomaviridae ; classification ; genetics ; isolation & purification ; Papillomavirus Infections ; diagnosis ; virology ; Polymerase Chain Reaction ; Sensitivity and Specificity ; Uterine Cervical Neoplasms ; virology

Objective To explore the relationship between dynamic changes in ultra-micro-structural of pulmonary arteries and endogenous hydrogen sulfide in rats with left-right shunt.Methods Rats in shunt group were subjected to an abdominal aorta-inferior vena cava shunt to create an animal model of pulmonary artery structural remodeling. After 1 day, 3 days, 1 week, 4 weeks and 8 weeks of experiment, the ultra-micro-morphologic changes of pulmonary arteries of rats were observed under electronic microscope and H_2S concentration in serum was evaluated by modified sulfide electrode method.Results The changes of ultra-micro-structure of pulmonary arteries were progressively exacerbated, endothelial cells became swollen and large in size on 3 days, smooth muscular cells increased in size as well as the change of endothelial cells in 1 week, and they changed from contractile phenotype to synthetic phenotype in 4 weeks.Conclusions Shunt exhibited changes of ultra-micro-structure of pulmonary arteries are accompanied by the changes of endogenous H_2S. It is suggested that endogenous H_2S might play a protective role in changes of ultra-micro-structure of pulmonary artery.

AIM: To establish an experimental model of high intraocular pressure in mice by laser photocoagulation and to prepare for future research.
METHODS: Experimental model of high intraocular pressure was induced unilaterally in 44 C57BL/6 mice. The fellow eye served as a control. TONO-PEN AVIA Tonomter was used to measure intraocular pressure (IOP) to guarantee IOP value at 1, 2, 4, 8wk. Slit-lamp biomicroscopy was performed throughout the period and the structural changes were assessed histologically. And then, their eyes were enucleated, postfixed, cryoprotected, and embedded in optimal cutting temperature medium. After hematoxylin and eosin stain ( HE stain ) , cryosections of the retina were observed under light microscope. TdT-mediated biotin-dUTP nick end labeling ( TUNEL ) was performed on the retinal sections to determine apoptosis rate.
RESULTS: IOP of laser-treated eyes was significantly higher than that of control eyes from 1-8wk (P<0. 05). The highest IOP was 31mmHg, but only one eye. The IOP was mainly around 20mmHg. In laser-treated eyes, the angle of anterior chamber were narrow. Number of cells in the inner nuclear layer and retial gangllion cell layer was slightly lower than that in control eyes at 2wk, but by 4 and 8wk the number of cells was significantly lower than that in the control contralateral eyes.
CONCLUSION: The laser photocoagulation of limbus causes chronic elevation of IOP and this method may be a promising experimental model for the investigation of biological mechanisms of glaucomatous retinal ganglion cell damage.