Objective To investigate the expression and signification of p63,aromatase P450 (P450arom) and steroidogenic factor-1 (SF-1) in endometrial polyp,and to explore its role in the pathogenesis of endometrial polyp.Methods Specimen were collected from hysteroscopic resection,pathologically confirmed endometrial polyp specimens of 30 cases of endometrial polyp and the adjoining endometrium around endometrial polyp in 20 cases,endometrial tissue of normal control group of 25 patients.Immunohistochemistry SP method and real-time PCR technology were used to detect the three groups in the expression of p63,P450arom and SF-1 protein and gene.Results P450arom gene (0.274±0.082) and protein (1.2± 1.1) expression in endometrial polyp was significantly higher than the adjoining endometrium and normal endometrium (P＜0.05); the expression of SF-1 protein (1.1 ±0.8) and p63 protein (0.8±0.5) were also higher in the endometrial polyp than the other two control groups (P＜0.05); while the expression of SF-1 mRNA (0.105±0.049 versus 0.053±0.043) and p63 mRNA (0.261±0.052 versus 0.180± 0.018) in endometrial polyp had no significant difference between endometrial polyp and the adjoining endometrial (P＞0.05).Conclusion p63,P450arom and SF-1 may play a role in the formation of endometrial polyp.

Background High myopia is seriously harmful to visual function.To explore the mechanism of high myopia is significant for the prevention and treatment.Complement proteins C1q and C3 have emerged as critical mediators of synaptic refinement and plasticity,however,their effects in retina on myopia remain elusive.Objective This study was to investigate the expressions of complement factors C1q and C3 in the retina with negative lensdefocused myopia in guinea pigs.Methods The use and care of animals complied with the application of Peking Union Medical College Hospital Iaboratory Animal Welfare Ethics Committee.Twelve 3-day-old pigmented guinea pigs were assigned randomly to the lens-defocused group and the normal control group.The left eyes were covered by -10 D PMMA lens for 4 weeks as the defocused eye group,and the right eyes were covered using 0 D PMMA lens in the same way as the fellow control eye group.The right eyes of the normal guinea pigs were used as the normal control eye group.The refractive diopter of guinea pigs was examined by retinoscopy.The animals were sacrificed at the fourth week and the expressions of complement C1q and C3 in the retinas of guinea pigs were detected by Western blot.Results The diptors were (-1.21±0.71)D,(+2.46±0.75)D and (+1.75±0.50)Din the defocused eye group,normal eye group and the fellow eye group at the fourth week,showing a significant difference among the groups (F=51.55,P=0.69),and diopters were insignificantly different between the normal eye group and fellow eye group (q =2.62,P=0.08).However,the diopters of the defocused eye group were significantly higher than those of the fellow eye group (q =10.92,P＜0.01).The expressions of C1q and C3 proteins in the retinas were significantly different among the defocused eye group,fellow eye group and normal eye group (C1 q:F=8.810,P =0.003;C3:F =14.490,P＜0.001),and expression levels of C1q and C3 proteins in the defocused eye group were significant higher than those of the fellow eye group (C1q:q=4.14,P=0.01 ;C3:q=4.71,P=0.005) ;while no significant differences were found between the fellow eye group and the normal eye group (C1q:q =1.61,P =0.27; C3:q =2.82,P =0.070).Conclusions The expression levels of C1q and C3 up-regulate in the retinas with lens-defocused myopic animal model.Excessive complement activation in retinas may be involved in the development of myopia.

OBJECTIVE To analyze the phonetic acquisition and speech articulation in deaf children. METHODS The speech articulation test and consonant and vowel identification test were performed with 30 children. RESULTS The consonants /b.p.d.t.m.l/ were the easiest to learn. Of the vowels, single vowels received the highest score. CONCLUSION The results of the consonant identification test, listed from easy to difficult, were /b.p.d.t.m.l/,/h.f.s.x.n/,/c.z.zh.ch.j.q.r/. The results of the vowel test, listed in the same order, were single, duplicate and nasal.

Objective To analyze relevant factors of cervical intraepithelial neoplasia residual or recurrence after loop electri‐cal excision procedure(LEEP) .Methods We observed the patients who were histopathologically confirmed CIN and treated with LEEP in our hospital from January 2006 to September 2012 ,and investigated the postoperative residual and recurrence .Then we an‐alysed relevant factors of residual or recurrence .Results (1)After at least 2 years of follow‐up ,26 cases showed residual or recur‐rence(the residual rate was 0 .97% and the recurrence rate was 4 .08% ) .(2)Overall severity of residual or recurrence had been re‐duced ,but the severity and recurrence of preoperative severity was positively correlated(r=0 .354 0 ,P<0 .05) .(3)Age ,smoking , preoperative high‐risk HPV load ,post‐operative the same type of HPV continuous infection ,endocervical involvement ,lesions in‐vo1ving quadrants ,and post‐operative TCT results between the recurrence group and non‐recurrence group were statistically signifi‐cant different(P<0 .05) .Conclusion CIN residual or recurrence after LEEP might be affected by many factors ,and the treatment should be individualized .

Objective:To investigate the effects of Acanthopanax Senticosus polysaccharides (ASPS) on TLR4 signaling pathway in Lewis tumor-bearing mice,and to explore the immunomodulatory mechanism of ASPS.Methods:Lewis lung carcinoma cells and C57BL/6 mice were used to establish the animal model for solid tumor.The tumor-bearing mice were divided into five groups:normal saline (NS) group,Adriamycin (ADM) group,ASPS low-dose group,ASPS middle-dose group and ASPS high-dose group.Mter 25 d treatment,the weight of tumor,tumor inhibition rate and immune organ index were measured.ELISA were applied to detected the cytokines in peripheral blood of tumor-bearing mice.Quantitative real-time PCR (Q-PCR) and Western blot were selectively used to detect the gene and protein expression of TLR4 signaling pathway in splenocytes.Results:The tumor inhibition rate,immune organ index and the secretion of TNF-α,IL-1β and IL-6 were increased by ASPS,compared with NS group (P＜0.05).The gene and protein expression of TLR4,MyD88,TRAF6,NF-κB p65 and AP-1 were also induced by ASPS (P＜0.05).Meanwhile,ASPS had no obvious effects on the secretion of IL-12p70 and the expression of TRAM (P＞0.05).Conclusion:TLR4 signaling pathway may be involved in the immunomodulatory effects of ASPS on Lewis tumor-bearing mice.

Objective To investigate the application value of serum tumor necrosis factor alpha (TNF-α) expression in diagnosing colorectal cancer (CRC).Methods One hundred and thirty inpatients with CRC in our hospital from February 2015 to November 2016 were selected and divided into 90 cases of CRC confirmed by operation and histopathology(CRC group),including intestinal cancer with and without metastasis,and 40 cases of benign colorectal diseases(colonrectal benign disease group),at the same time 40 persons undergoing physical examination were selected as the healthy control group.The levels of TNF-α,carcinoembryonic antigen (CEA) and carbohydrate antigen (CA) 724 were collected in all subjects.The data of various groups were not normally distributed,and the nonparametric statistical method was used to analyze and compare.Results Serum TNF-α level in clinical TNM stage Ⅱ(median 9.47 pg/mL),Ⅲ(9.95 pg/mL) and Ⅳ(9.67 pg/mL) of the CRC group was significantly higher than that in TNM stage Ⅰ(6.59 pg/mL);which in the CRC with metastasis group (9.95 pg/mL) was higher than 8.03 pg/mL in CRC without metastasis group,the difference was statistically significant (P<0.05);the TNF-α expression had no obvious difference among different ages and between different genders(P>0.05).The area under the ROC curve in each test index:TNF-α was 0.868,CEA was 0.912,CA724 was 0.523,and which of their joint detection was 0.940.Conclusion The expression of TNF-α is increased in the occurrence and development process of CRC,its serum level detection has certain clinical application value,the TNF-α expression has no obvious difference in the subjects with different ages and different sexes and has wide suitability.The combine detection of serum TNF-α,CEA and CA724 in the patients with CRC significantly increases the level,the combined detection of 3-index can have complementary advantages to increase the sensitivity of CRC diagnosis,which serve as the significant indexes in CRC early diagnosis,therapeutic effect evaluation and prognosis monitoring.

Objective To investigate the clinical features and value of white blood cell(WBC) count during influenza diagnosis.Methods Compare with leukocyte count and its classification,clinical features between 38 cases of influenza A and 55 cases of influenza B patients.Results The follow results have were significant difference between these two group(P<0.05):The WBC content (WBC),neutrophil count (NEUT),lymphocyte(LYMPH) count and platelet (PLT).In both group,WBC were mostly in normal range.However,WBC and NEUT% in the group A were 15.79% and 34.21%,higher than the B group 7.27%,25.45%.Additionaly,WBC and NEUT% in upper respiratory tract infection group were 59.26% and 66.67%,higher than the normal ranger,and group influenza A flow patients with higher proportion for headache and crackles,were 47.36% and 52.63%,respectively(P<0.05).Conclusion The WBC count and its classification have significant difference between influenza A and B.Furthermore,patients with influenza A virus are more likely to have co-infection with bacteria.

Objective To construct Escherichia coli O157∶H7 T3SS effector NleF gene knockout mutant and its com-plementary strain, and probe its effects on bacterial growth and cell death .Methods T3SS Effector NleF gene knockout mutant ΔnleF was constructed with λ-Red homologous recombination .Complementary strain ΔnleF/NleF was constructed by transferring pET-24a(+)-NleF into ΔnleF competent cells.Wild type,ΔnleF and ΔnleF/NleF were cultured in LB and DMEM(10%FBS) respectively,D600 was measured every hour , and the growth curve was drawn .HeLa cells were infected with three kinds of strains , the supernatant of LDH release was detected with cytotoxicity detection kit ,and the cytotoxicity was calculated .Results ΔnleF and ΔnleF/NleF were constructed .The growth rates of wild type , ΔnleF and ΔnleF/NleF was not significantly different .Wild type O157 infection induced cell death .Cytotoxicity was increased as much in ΔnleF in-fected cells as in ΔnleF/NleF infected cells.Conclusion EHEC O157∶H7 T3SS Effector NleF has no significant effect on bacterial growth ,but might inhibit host cell death caused by bacterial infection .

AIM:To analyze the alterations of angiotensin Ⅱ (Ang Ⅱ), connexin 43 (Cx43), angiotenisinⅡreceptor type 1 (AT1) and signaling molecules in the TGF-β1/Smad pathway in different regions of the left ventricular heart tissue for exploring whether Ang Ⅱregulates Cx43 expression via the TGF-β1/Smad signaling pathway in myocardial infarction ( MI) rats.METHODS:MI was induced in 20 male Sprague-Dawley rats by the left anterior descending coronary artery ligation.The rats were then randomized into 2 groups.In the losartan group, 20 mg· kg-1· d-1 of losartan were ad-ministered for 2 weeks.Heart functions were assessed after surgery and 2 weeks later again following the above treatments . All the rats were sacrificed and relevant molecules , including Ang Ⅱ, AT1, and Cx43 were determined thereafter in diffe-rent areas of the left ventricle .TGF-β1 and its downstream signaling molecules , including Smad 2, Smad 3 and Smad 7, were also detected .RESULTS:In losartan group , both left ventricular internal dimension diastole ( LVIDd) and left ven-tricular internal dimension systole (LVIDs) were smaller, with diminished interventricular septal thickness (IVSd) and left ventricular posterior wall depth ( LVPWd ) and distinct improvement of left ventricular ejection fraction ( LVEF ) ( P<0.05 ) .Losartan therapy exhibited a reduction of Ang Ⅱin the infarct zone and the border zone in the cardiac tissues .AT1 was obviously attenuated in the infarct zone with an enhanced expression of Cx 43, which was also elevated in the border zone and none infarct zone .TGF-β1, Smad 2 and Smad 3 were decreased in different zones of the left ventricle , while Smad 7, in contrary to the above factors , presented a converse alteration .CONCLUSION:The activation of Ang Ⅱpro-vokes downregulation of Cx 43 through TGF-β1/Smad signaling pathway in MI rats .

Objective To explore the sensitivity and specificity of colposcopy directed biopsy (CDB) and the value of loop electrosurgical excision procedure (LEEP) for the diagnosis and treatment of microinvasive cervical cancer (MCC). Methods One hundred and thirty five patients with MCC were diagnosed with LEEP in Obstetrics and Gynecology Hospital, Fudan University from April 2008 to November 2010, and were retrospectively analyzed on CDB diagnoses and following treatment after LEEP. According to patient′s desire for preservation of fertility and cone margin status, following strategies after LEEP included follow-up, second LEEP, hysterectomy, modified radical hysterectomy and radical hysterectomy. Single and multiple factors related to residual lesions after LEEP were analysed with Pearson Chi-square test and logistic regression model, respectively. Results CDB diagnosed MCC with a sensitivity of 4.4%(6/135), specificity of 100.0%(4 680/4 680), and false negative rate of 95.6%(129/135). Among the 135 patients, 29 did not receive further treatment in our hospital and lost contact. One hundred and six patients had secondary treatment or follow-up in our hospital, 4 of among which were closely followed up;one hundred and two received further treatment, which included 6 cases with second LEEP (3 received extrafascial hysterectomy after repeat LEEP), 59 cases hysterectomy, 14 cases modified radical hysterectomy and 26 cases radical hysterectomy. For factors related to residual lesions after LEEP, single factor analysis showed that the ratio of residual lesion in patients aged 27-39, 40-49 and 50-65 years were respectively 19.0%(11/58), 15.4%(10/65) and 5/12 (χ2=4.505, P=0.105). Residual lesions occurred in 24.7%(23/93) of patients with positive LEEP margins, which was more than that 7.1%(3/42) of patients with negative LEEP margins (χ2=5.756, P=0.016). The ratio of residual lesions in patients with positive endocervical, ectocervical and deep stromal margins were respectively 29.6%(8/27), 17.1%(7/41)and 30.6%(11/36;χ2=2.275, P=0.321). Residual lesions in patients with or without lymph vascular space invasion (LVSI) were 2/7 and 18.8%(24/128), respectively (χ2=0.412, P=0.521). The ratio of residual lesions in patients with invasion depth of<1 mm was 17.1%(7/41), 1-<3 mm was 19.0%(16/84), and 3-5 mm was 3/10, with no significant difference among three groups (χ2=0.870, P=0.647). Logistic regression analysis showed positive cone margin (OR=5.069, P=0.014) and age (OR=1.080, P=0.024) were the independent risk factors of residual lesions after LEEP conization. Conclusions CDB alone is not adequate for the diagnosis of MCC. For young patients who desire to preserve fertility with a negative cone margin, close follow-up is acceptable. Cone margin status and age are two independent risk factors for residual lesions after LEEP.