Child ; Fibroma ; Humans ; Male ; Nasal Cavity ; pathology ; Nose Neoplasms

BackgroundThe study of myopia development is always the hotspot worldwide. Recently,scientist found that some growth factor secreted by retinal nerve epithelium cells and retinal pigment epithelium(RPE)cells are associated with the development of myopia. Whenever, the absorption of RPE cells to different wave-length lights is different. ObjectiveThis study was to investigate the effects of different wave-lengths lights on the proliferation of human RPE cells, and explore the influence of different wave-lengths lights on RPE cells secreting hepatocyte growth factor(HGF) ,basic fibroblast growth factor(bFGF) and transforming growth factor-β(TGF-β).Methods The fourth to fifth passages of human embryonic RPE cells were exposed to blue light( λ =480 nm),red light( λ =775 nm) and white light. The cells of control group were harvested in normal condition. The proliferation and growth of RPE cells were assayed by MTT,and the ultrastructure of cells was examined under the transmission electron microscopy at 48 hours after light exposure of RPE cells. Enzyme linked immunosorbent assay(ELISA) was adopted to determine the concentrations of HGF,bFGF and TGF-β in the culture medium in 12,24,48,72 hours. The expression of HGF mRNA in RPE cells was detected by RT-PCR. This study was approved by Ethic committee of Fudan University. ResultsThe A490 values of the cells exposed to blue light,red light,white light and white light were 0. 0218±0. 0014 ;0. 0353±0. 0025 ;0. 0371 ±0. 0024 and 0. 0445 +0. 0046 respectively with the significant difference among 4 groups ( F =12. 579, P＜0.05 ), and A490 value in blue light group, red light group were significantly lower than that of the control group ( t =2.043 ; t =2.024, P＜0.05 ). ELISA showed that the concentrations of HGF and TGF-β in culture medium were evidently elevated as the prolongation of light exposure in various light exposure groups in 72 hours(HGF) and 48 hours(TGF-β) compared with 12 hours with a predominating rise in the control group. The statistically significant differences were found in the concentrations of HGF and TGF-β between control group and blue light group or red light group in the( all P＜0. 05 ). The bFGF level was decreased with the time increase of various light exposure with the significant differences in 72 hours compared with 12 hours( P＜0.05 ). RT-PCR revealed the considerable difference about expression of HGF mRNA in RPE cells among these four groups( P＜0. 05 ), and the lest expression in HGF mRNA was in the blue light group compared with control group( t =3. 972,P＜0.05 ). Thinning of the chromatin, decreasing of organelle and loss of cellular membrane were seen in the blue light group, but no obvious change of ultrastructure of human embryo RPE cells was found in the ret and white light groups. ConclusionsThe irradiation of different wave-length light can effect the growth and proliferation and secretion of HGF,bFGF and TGFβ in human RPE cells in vitro,implying myopia formation is associated to exposure of different wave-length light.

AIM:To explore the roles of Akt ( also called protein kinase B ) and active caspase-3 in the leptin-mediated chronic morphine antinociceptive tolerance in rats .METHODS: A model of chronic morphine antinociceptive tolerance was established in the SD rats .The protein levels of spinal Akt and cleaved caspase-3 were tested by Western blotting.The technique of immunohistochemical staining was used to detect the immunoreactivity positive cells of phospho -rylated ( p)-Akt and cleaved caspase-3 in the spinal cord .Double staining of immunohistochemistry was used to examine the cellular location of the p-Akt and cleaved caspase-3 positive cells.RESULTS: The chronic intrathecal injection of morphine (15 μg) for 7 d markedly upregulated the spinal protein levels of p-Akt and cleaved caspase-3 in the rats.Thirty min before injection of morphine , intrathecal injection of leptin antagonist (3μg) for 7 d significantly attenuated the upreg-ulation of the protein levels of p-Akt and cleaved caspase-3 induced by chronic morphine treatment .The p-Akt was exclu-sively observed in the spinal neurons .The cleaved caspase-3 was only localized with the spinal astrocytes .Intrathecal injec-ting the inhibitors of leptin , Akt and caspase-3 ameliorated the chronic antinociceptive tolerance .CONCLUSION: The spinal Akt pathway and active caspase-3 are involved in the leptin-mediated chronic morphine antinociceptive tolerance in rats.

Adult ; Aged ; Carcinoma, Squamous Cell ; surgery ; Esophagus ; surgery ; Humans ; Laryngeal Neoplasms ; surgery ; Laryngectomy ; Male ; Middle Aged ; Phonation ; Postoperative Period ; Reconstructive Surgical Procedures ; methods ; Speech, Alaryngeal ; Trachea ; surgery

OBJECTIVETo seek for a good therapy for childhood hyperkinetic syndrome (CHS).

METHODSTwo hundred and ten patients of CHS were randomly divided into three groups, the Yizhi mixture (YZM) group, the Ritalin group and the combined treated group, 70 in each group. They were treated with YZM alone, Ritalin alone and combined YZM and Ritalin respectively for 12 weeks. The effect was assessed by Conners' questionnaire for hyperkinetic scoring, Achenbach's questionnaire for behavior estimation, clinical general image questionnaire and Tess's questionnaire before and after treatment.

RESULTSThe total effective rate in the YZM group, Ritalin group and combined treated group was 75.7%, 74.2% and 82.8% respectively, and the markedly effective rate in the three groups was 44.3%, 45.7% and 80.0% respectively. By chi 2 test, comparison among the three groups showed that the difference of the total effective rate was insignificant, while that of the markedly effective rate was significant (chi 2 = 23.31, P < 0.01). Further analysis conducted by partitioning method to make comparison between each two groups showed that the markedly effective rate was significantly higher in the combined treated group than that in the YZM group (chi 2 = 18.98, P < 0.01) and in the Ritalin group (chi 2 = 17.62, P < 0.01). The low hyperkinetic score, behavior score, achievement of Chinese and mathematics in the CHS patients were improved after treatment, the improvements were significantly higher in the combined treated group than those in the other two groups (P < 0.05, by q-test). Moreover, the soft nerve signs and abnormal encephalogram were significantly improved in the combined treated and the YZM groups, and the side-effect occurred in the two groups was less than that in the Ritalin group (P < 0.01).

CONCLUSIONThe therapeutic effect of combined treatment of YZM and Ritalin was better than that of YZM or Ritalin alone.

Adolescent ; Attention Deficit Disorder with Hyperactivity ; drug therapy ; Central Nervous System Stimulants ; therapeutic use ; Child ; Drug Therapy, Combination ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Male ; Methylphenidate ; therapeutic use ; Phytotherapy

AIM: To investigate the early changes of retinal function in diabetic patients detected by multifocal electroretinogram (mfERG).METHODS: The first-order kernel responses of mfERG were recorded from eyes of 33 normal control subjects,63 diabetic patients without retinopathy and 43 diabetic patients with background retinopathy. The response densities and implicit times of N1 and P1 were compared among the control, diabetic patients without retinopathy and diabetic patients with retinopathy.RESULTS: The response densities of N1 and P1 in central 3 rings were reduced significantly in diabetic eyes with and without retinopathy. And the implicit times of N1 and P1 were delayed significantly only in diabetic eyes with retinopathy.CONCLUSION: mfERG can detect the early changes of retinal function quantitatively in diabetic patients. Analysis of response densities and implicit times of N1 and P1 can reflect the progress of local retinal dysfunction in diabetes.

Objective To study emptying of gallbladder in children with functional dyspepsia(FD),and to investigate correlation of their helicobacter pylori(Hp) status and gallbladder emptying rate.Methods Sixty children with FD were studied,including 30 Hp-ne-(gative) and 30 Hp-positive children.Thirty Hp-positive children received triple eradication therapy 1 week.After 4 weeks,the Hp tests were taken again,27 children became Hp-negative,and the others were still positive eliminated from the study.The difference between the above groups in gallbladder volumes before breakfast and postprandial gallbladder emptying rate were compared.Results The gallbladder volumes before breakfast were bigger and the emptying rate of postprandial gallbladder of children with FD were lower than those of normal controls(P0.05).Conclusions Delayed emptying of gallbladder may cause FD in children.Hp infection isn′t associated with the gallbladder emptying rate.

BACKGROUND:This systematic review aims to investigate the prediction value of diffusion tensor imaging for motor function recovery of ischemic stroke patients. METHODS:Cochrane Central Register of Controlled Trials (CENTRAL) (the Cochrane Library 2016, Issue 9), PubMed, Embase, Clarivate Analytics, Scopus, CINAHL, Chinese Biomedical Literature Database, China National Knowledge Infrastructure and Google Scholar were searched for either motor recovery or corticospinal tract integrity by diffusion tensor imaging in different stroke phase from January 1, 1970, to October 31, 2016. The study design and participants were subjected to metrological analysis. Correlation coefficient (r) was used for evaluating the relationship between fractional anisotropy (FA) and motor function outcome. Correlation coefficient values were extracted from each study, and 95％ confidence intervals (CIs) were calculated by Fisher's z transformation. Meta-analysis was conducted by STATA software. RESULTS:Fifteen studies with a total of 414 patients were included. Meta-analysis showed that FA in the subacute phase had the significant correlation with motor function outcome (ES=0.75, 95％CI 0.62-0.87), which showed moderate quality based on GRADE system. The weight correlation coefficient revealed that an effect size (ES) of FA in acute phase and chronic phase was 0.51 (95％CI 0.33-0.68) and 0.62 (95％CI 0.47-0.77) respectively. CONCLUSION:This meta-analysis reveals that FA in the subacute phase after ischemic stroke is a good predictor for functional motor recovery, which shows moderate quality based on the GRADE system.

Pseudomonas sp. ZD8 isolated from contaminated soil was immobilized with platane wood chips to produce packing materials for a novel biofilter system utilized to control restaurant emissions. The effects of operational parameters including retention time, temperature, and inlet gas concentration on the removal efficiency and elimination capacity were evaluated. Criteria necessary for a scale-up design of the biofilter was established. High and satisfactory level of rapeseed oil smoke removal efficiency was maintained during operation and the optimal retention time was found to be 18 s corresponding to smoke removal efficiency greater than 97%. The optimal inlet rapeseed oil smoke loading was 120 mg/(m3.h) at the upper end of the linear correlation between inlet loading and elimination capacity.

Objective To investigate the effect of lemon peel extracts(LPE) on the activity of lactate dehydrogenase and sucrase of Streptococcus mutans (Sm). Methods After serial dilution with trypticase soy broth (TSB) medium containing 2% glucose, LPE was used as the experimental group, and TSB without LPE as the control group. Sm was added to each group,which was then cultured for 6,18,24 and 48 hours in the anaerobic tank. The activity of lactate dehydrogenase (LDH) was measured with the method of oxidation of reduction coenzyme I and the pH value of the culture solution was also detected. The activity of the sucrose was determined with the method of coloration of 3,5-dinitrosalicylic acid. Results The activity of LDH, sucraae and the changes of solution pH were decreased with the increase of the concentration of LPE (P ＜ 0. 01 ). The activity of LDH were declined from (0. 8025 ± 0. 0913 ) × 103 U/L to (0. 2099 ±0. 0283) × 103 U/L; the activity of sucrase were declined from ( -0. 0107 ±0. 0003) × 103 U/L to ( -0.0078 ±0.0002) × 103 U/L; the△pH were declined from(2.8067 ±0.0404) to (2.5033 ±0. 0416) (24 h results). The differences were significant between experimental groups and the control group (P ＜ 0. 01 ), and there were also significant differences among experimental groups with different LPE concentration( P ＜0. 01 ). The inhibitory effect of acid generation and lactate dehydrogenas' activity of Sm were positively correlated ( P ＜ 0. 01 ). Conclusions LPE can inhibit the activity of lactate dehydrogenase,sucrase and the acid production capacity of the Sm in a dose dependent manner. The inhibitory effects in logarithmic phase is stronger than that in other phases of growth cycle.