Ear Diseases ; congenital ; epidemiology ; Ear, External ; abnormalities ; Ear, Middle ; abnormalities ; Female ; Humans ; Male

Acupuncture Therapy ; Humans ; Male ; Meige Syndrome ; therapy ; Middle Aged

Objective To explore the curative effect of ursodeoxycholi acid on retinopathy of prematurity (ROP) caused by high concentration of oxygen in newborn rats. Methods The model of ROP was established. Neonatal rats were divided into normal control group, ROP model group, low dose ursodeoxycholi acid treatment group (10mg/kg) and high dose ursodeoxycholi acid treatment group (40mg/kg). Rats were sacrificed at days 17. The new retinal vessels were observed and counted under lfuorescence microscope. Results The new retinal vessels in ROP rats were hyperplastic, twisted and unevenly distributed. There was signiifcant difference in the number of new retinal vessels among different groups (P=0.000). The number of new retinal vessels of rats in ROP group, low-dose group and high-dose group was signiifcantly more than that in control group (P=0.000). The number of new retinal vessels in low-dose group and high-dose group was significantly less than that in ROP group (P<0.05). The number of new retinal vessels in high-dose group was less than that in low-dose group (P>0.05). Conclusions Ursodeoxycholi acid could inhibit the angiogenesis of retina and could have curative effect on ROP.

Anemia, Aplastic ; therapy ; Child ; Female ; HLA Antigens ; genetics ; immunology ; Humans ; Mesenchymal Stem Cell Transplantation ; Peripheral Blood Stem Cell Transplantation

Hepatitis B virus(HBV) infection is a severe health problem in the world.However,there is still not a satisfactory therapeutic strategy for the HBV infection.To search for new anti-HBV agents with higher efficacy and less side-effects,the inhibitory activities of traditional Chinese medicine Rheum palmatum L.ethanol extract(RPE) against HBV replication were investigated in this study.Quantitative real-time polymerase chain reaction(PCR) was employed to analyze the inhibitory activity of RPE against HBV-DNA replication in a stable HBV-producing cell line HepAD38; the expression levels of HBV surface antigen(HBsAg) and e antigen(HBeAg) were also determined by enzyme linked immunosorbent assay(ELISA) after RPE treatment.RPE could dose-dependently inhibit the production of HBV-DNA and HBsAg.The concentration of 50% inhibition(IC50) was calculated at 209.63,252.53 μg/mL,respectively.However,its inhibitory activity against HBeAg expression was slight even at high concentrations.RPE had a weak cytotoxic effect on HepAD38 cells(CC50 = 1 640 μg/mL) and the selectivity index(SI) was calculated at 7.82.Compared with two anthraquinone derivatives emodin and rhein,RPE showed higher ability of anti-HBV and weaker cytotoxicity.So Rheum palmatum L.might possess other functional agents which could effectively inhibit HBV-DNA replication and HBsAg expression.Further purification of the active agents,identification and modification of their structures to improve the efficacy and decrease the cytotoxicity are required.

Objective To analyze the risk factors associated with allergic disease in preterm infants during the first year of life. To investigate whether there was any association between peripheral blood eosinophils and allergic di-sease during the first year of life benefit of hydrolyzed formula feeding in preterm infants. Methods A nested case -control study was conducted in a cohort of artificial feeding preterm infants admitted to Neonatal Intensive Care Unit, Shanghai Children's Medical Center from January 2012 to April 2013. The preterm infants were monitored from birth up to 1 year of age and the findings were related to development of allergic disease. Individuals with allergic disease during the first year of life(cases)were matched with gender,as previously described with two individuals(controls)who re-mained event - free during the study. The risk factors associated with allergic disease in preterm infants during the first year of life were analyzed. And whether there was any association between peripheral blood eosinophils and allergic di-sease during the first year of life benefit of a hydrolyzed formula feeding in preterm infants was investigated. Different variables in control and case individuals were compared with t test for normal distribution measurement date,χ2 tests for categorical variables and Mann - Whitney U test for non - normal distribution measurement date,and multiple conditio-nal Logistic regression were used to investigate the risk factors associated with allergic disease in preterm infants. Results Thirty - four individuals were in cases and 68 individuals were in controls. In a conditional multivariable Logistic model,peripheral blood eosinophils of preterm infants at full enteral feeding(EOS - 2)(OR = 5. 941,95% CI:1. 165 - 41. 375,P ﹤ 0. 05),and family history of allergy(OR = 3. 316,95% CI:1. 201 - 9. 152,P ﹤ 0. 05)were the two independent risk factors for allergic disease in preterm infants during the first year of life. Individuals fed with standard preterm formula after birth,the association between EOS - 2 and allergic disease was significantly enhanced (OR = 21. 459,95% CI:1. 686 - 273. 152,P ﹤ 0. 05). By contrast,in individuals fed with hydrolyzed formula,the risk of EOS - 2 was substantially attenuated(OR = 1. 708,95% CI:0. 148 - 19. 743,P ﹥ 0. 05). Conclusions Peripheral blood eosinophils of preterm infants at full enteral feeding EOS - 2 and family history of allergy were the 2 independent risk factors for allergic disease in preterm infants during the first year of life. Contrast to individuals fed with standard preterm formula after birth,individuals fed with hydrolyzed formula had lower association between factors of peripheral blood eosinophils and family history of allergy,and allergic disease during the first year of life.

Objective To explore the impacts of enriched environment(EE),which has different initiation time points and intensity,on the neural and ethological prognosis and contents of myelin basic protein(MBP)of neo-natal rats with hypoxic - ischemic brain damage(HIBD). Methods HIBD rat models were established. Rats were divided into the early,the intermediate and the late intervention groups,which experienced EE from 7,14 and 21 days after HIBD for 14 days. The early and intermediate intervention groups were then divided into 6 - h and 24 - h groups, which experienced EE intervention for 6 hours or 24 hours respectively each day. Trapeze tests and water maze tests were carried out to detect the neural and ethological prognosis. Immunohistochemical method was used to detect MBP of the brain white matter,and the percentages of positive cells with MBP were detected by an image analyzer. The con-tents of MBP were measured. Results The trapeze test scores of the early and intermediate sham operation group,HI group,early 6 - h and 24 - h EE groups and the intermediate 6 - h and 24 - h EE groups,the late sham operation group,the late HI and late EE intervention group were(4. 05 ± 0. 88)scores,(2. 35 ± 1. 02)scores,(3. 67 ± 1. 12) scores,(3. 50 ± 1. 41)scores,(3. 50 ± 0. 93)scores,(3. 56 ± 1. 13)scores,(4. 00 ± 0. 89)scores,(2. 17 ± 1. 17)scores,(3. 50 ± 0. 92)scores,respectively. The trapeze test scores of early,intermediate and late EE groups were higher than those of the HI groups in the same period. There was no significant difference between the early,the intermediate 6 - h EE groups and 24 - h EE groups. Scores of water maze of each corresponding group were(40. 68 ± 23. 77)seconds,(56. 66 ± 10. 96)seconds,(46. 49 ± 19. 27)seconds,(51. 72 ± 20. 46)seconds,(38. 20 ± 18. 36)seconds,(47. 96 ± 20. 65)seconds,(38. 63 ± 20. 44)seconds,(59. 66 ± 13. 81)seconds and(45. 93 ± 22. 45)seconds,respectively. The water maze scores of the early,the intermediate 6 - h EE group and the late 24 -h EE groups were higher than those of the HI groups in the same period. There was no significant difference between the early,the intermediate 6 - h EE groups and the 24 - h EE groups. The relative abundance of MBP of the early and intermediate and the late HI groups were 6. 32 ± 1. 63 and 6. 74 ± 2. 19,and significantly less than that of the sham groups in the same periods,which were 9. 09 ± 1. 69 and 9. 37 ± 2. 46. The relative abundance of MBP of early 6 - h and 24 - h groups,the intermediate 6 - h and 24 - h groups and the late EE group was 7. 84 ± 2. 51,8. 05 ± 1. 86, 8. 89 ± 2. 29,8. 48 ± 2. 67 and 7. 98 ± 2. 09,respectively,which was significantly higher than that of the HI groups in the same periods. It showed that the neural and ethological prognosis of neonatal rats with HIBD could be improved,no matter the intervention began in the early,the intermediate or the late periods,or the intervention time was 6 hours or 24 hours each day. And relative abundance of MBP in the white matter increased with EE. Conclusions EE interven-tion has a long window stage for young rats. EE intervention could improve the neural and ethological prognosis of rats with HIBD. EE intervention could elevate the contents of MBP in the white matter,which could be one of the mecha-nisms for EE to improve the neural and ethological prognosis of rats with HIBD.

Objective To evaluate the test -retest reliability of sentence materials, and to standardize Man_darin Speech Test Materials (MSTMs). Methods Forty normal-hearing subjects aged from 18 to 30 years old were recruited in this study. The sentence materials were tested at 9 dB HL to these subjects according to the prepare ex_periment. The retest was carried out in the same condition after an interval of 14~28 days. The difference between test and retest score was examined by t-test, and the critical difference (CD) was analyzed with 95% confidence in_terval (CI). ResuIts There was no significant difference between the test and retest scores about speech perception performance. The critical difference was 18. 93% at 95% confidence interval, and the number of the corresponding key words was 10. ConcIusion The results showed that sentence materials of MSTMs have good test-retest relia_bility except list 6. The interventions could be considered effective just when the difference of the same subject's score exceed 18. 93%, that means 10 key words are necessary to improve that the intervention is effective.

OBJECTIVE To explore the effect of E-cadherin on the proliferation ability of Hep-2 by method of RNA interference technology to silence the expression of E-cadherin. METHODS The specific siRNA sequences and non-silencing siRNA were designed and synthesized. Hep-2 cells were transfected and then the down expression of E-cadherin gene in vitro cultured Hep-2 cells were got. The silencing effect of E-cadherin gene was explored by Fluorescence Quantitative Polymerase Chain Reaction and the proliferation of the transfected Hep-2 cells were detected in vitro by MTT assay. RESULTS 1.When transfected with the ratio of recombinant plasmid and the quality of liposome volume at 1:1, the transfection efficiency at the siRNA-3 group was the highest and can be up to 65%. 2.The results of Fluorescence Quantitative Polymerase Chain Reaction: recombinant plasmid pRNAT-U6.1/Neo-siRNA1, pRNAT-U6.1/Neo-siRNA2 and pRNAT-U6.1/Neo-siRNA3 can down regulate the expression of E-cadherin mRAN. Set blank control group as a baseline (set to 1), the changes of expression of E-cadherin relative to β-actin in siRNA-1group was 0.00092, siRNA-2 group was 0.00143, siRNA-3 group was 0.00045 and the negative control group was 3.44898. The difference was statistically significant (P<0.05). 3. MTT: The growth rate of Hep-2 cells treated by specific siRNA was faster than that of the control group, and the difference was statistically significant (P<0.05). CONCLUSION Effectively inhibition the expression of E-cadherin's mRAN can enhance the proliferation of Hep-2 cells.

Targeting induced local lesions in genomes (TILLING) is a reverse genetics method for functional genomics research.It is possible to screen for point mutations in the populations of EMS mutagenesis with highthroughput and lowcost. EcoTILLING a method based on TILLING ,was developed for detecting multiple types of polymorphisms in germplasm collections,such as single nucleotide polymorphism,small deletion and insertion etc.Rice is a very important food crop and a model plant for genome research also. There are complete genome sequence and a lot of other bioinformatics resources about it.So the markerassisted breeding is becoming more and more important in rice breeding. Some issues based on TILLING about identifying germplasm based on gene sequence,EMS mutagenesis breeding,developing functional marker in rice breeding in future were discussed.