Electrocardiography ; Female ; Fetal Hypoxia ; complications ; Humans ; Infant, Newborn ; Myocardial Infarction ; etiology ; therapy ; Myocardium ; metabolism ; pathology ; Treatment Outcome

Bronchoalveolar Lavage ; Bronchopulmonary Dysplasia ; etiology ; therapy ; Humans ; Infant, Newborn ; Infant, Premature ; Infant, Very Low Birth Weight ; Intubation, Intratracheal ; adverse effects ; Male ; Positive-Pressure Respiration ; Respiratory Insufficiency ; etiology ; therapy ; Treatment Outcome

Embolism, Paradoxical ; complications ; Female ; Humans ; Middle Aged ; Myocardial Infarction ; etiology

AIM To investigate the effect of aspirin on the proliferation and NOS expression in astrocytoma cell line, and probe into its mechanism. METHOD The effect of aspirin on the growth of astrocytoma cells was evaluated by MTT assay; NOS protein levels were determined by immunocytochemistry, NO and CEA concentration in the medium were determined by Griess assay and lepton catch immunising method respectively. RESULTS Aspirin inhibited the growth of astrocytoma cells, induced the expression of iNOS, increased the concentration of NO in the medium. The effects of these were centratoin dependent. Moreover, aspirin reduced the concentration of CEA in the medium. CONCLUSION Aspirin inhibits the growth of astrocytoma cell line. Up regulated iNOS expression resulting a increase of NO concentration are ascribed to mechanism of antiproliferation activity of aspirin. CEA is a good indicator in monitoring curative effect of astrocytoma.

Objective To analyze the methylation status and protein expression of Ras association domain family- 1A (RASSF1A) in endometriosis (EMS). Methods The ectopic and corresponding eutopic endometrium tissues were collected from 45 women with EMS and normal endometrium tissues of 20 women without EMS. The methylation status of RASSF1A was examined by methylation specific PCR (MSP). Immunohistochemistry was performed to measure the level of RASSF1A in endometrium tissues. Results The RASSF1A protein expression rate in ectopic endometrium, eutopic endometrium, and normal endometrium was 37.78%(17/45), 60.00%(27/45) and 85.00%(17/20), and there was significant difference (χ2 = 13.136, P = 0.001). The frequency of aberrant methylation of RASSF1A was 55.56%(25/45), 33.33%(15/45) and 0 in ectopic endometrium , eutopic endometrium, and normal endometrium, and there was significant difference (χ2 =18.770, P = 0.000). The frequency of aberrant methylation of RASSF1A had no significant differnce throughout the menstrual cycle in ectopic endometrium and eutopic endometrium: 66.67%(14/21) vs. 45.83%(11/24), 38.10%(8/21) vs. 29.17%(7/24), P>0.05. In ectopic endometrium, the frequency of aberrant methylation of RASSF1A inⅢ-Ⅲstage was significantly higher than that in Ⅰ-Ⅱstage (χ2=5.940, P=0.015). In ectopic endometrium and eutopic endometrium, the RASSF1A protein expression had negative correlation with aberrant methylation of RASSF1A (r =- 0.594、- 0.577, P<0.01). Conclusions Epigenetic inactivation of RASSF1A through aberrant promoter methylation may be strongly correlated with the formation and progression of EMS, and assessment of RASSF1A methylation status in eutopic endometrium may be a potentially useful biomarker to enhance the early detection of EMS.

Objective To evaluate the methylation status of RASSF2A in epithelial ovarian cancer (EOC) tissues and plasma, and to explore the correlations in two kinds of samples with clinicopathological characteristics. Methods The frequency of methylation of the RASSF2A gene in tissues and corresponding plasma samples from 60 EOC patients, 20 patients with benign ovarian tumors and 10 patients with normal ovarian tissues were detected respectively. The methylation-specific PCR was used to determine the methylation status. Results The frequency of aberrant methylation of RASSF2A was 58.3% (35/60) in EOC tissues and 43.3%(26/60) in corresponding plasma samples respectively, however, such hypermethylation was not detected in the benign ovarian tumors and normal ovarian samples, and there was significant difference between them (P<0.05). Besides, RASSF2A methylation levels in serum of EOC patients correlated reasonably well with methylation status in tumor samples (r=0.739, P=0.000). No significant differences were observed between the promoter hypermethylated status of the RASSF2A and clinicopathological characteristics (P>0.05). Conclusions The promoter methylation of RASSF2A gene is an early and frequent epigenetic event in EOC. Detection of promoter hypermethylation in plasma specimens can help the early diagnosis of EOC.

Objective: To evaluate the relationship between air pollutants and mortality of residents in Huairou District, Beijing, providing a basis for the formulation of air pollution control measures. Methods : The data of daily deaths, meteorological factors and air pollutants in Huairou District from 2014 to 2018 were collected from Beijing Disease Prevention Monitoring Information Integration and Analysis System, Huairou Meteorological Bureau and Environmental Monitoring Station. The generalized additive models were used to analyze the relationship between the average daily concentration of air pollutants and the daily deaths. Results: The medians of daily average concentrations of SO2, NO2, CO, O3, PM10 and PM2.5 were 5.00 μg/m3, 24.00 μg/m3, 0.71 mg/m3, 77.27 μg/m3, 64.25 μg/m3 and 44.13 μg/m3, respectively. Except for O3, the daily average concentrations of SO2, NO2, CO, PM10 and PM2.5 showed decreasing trends from 2014 to 2018. An increase of 10 μg/m3 of NO2 resulted in an elevation of 1.69% ( 95%CI: 0.31%-3.08% ) , 3.31% ( 95%CI: 1.24%-5.42% ) and 3.31% ( 95%CI: 0.51%-6.19% ) for non-accidental death in the whole population, females and people under 65 years old, respectively, with a delay of 2 days (lag2). For every 10 μg/m3 increase in the daily average concentrations of CO and PM2.5, the risk of non-accidental death among people under 65 years old at lag2 increased by 0.08% ( 95%CI: 0.01%-0.14% ) and 0.88% ( 95%CI: 0.12%-1.64% ) , respectively. For every 10 μg/m3 increase in daily average concentration of O3, there was 0.69% ( 95%CI: 0.02%-1.36% ) increase in daily male non-accidental death risk at lag4. The results of the multi-pollutant model showed that after adjusting the effects of the other two air pollutants, NO2, CO and PM2.5 had no statistically significant effects on the daily non-accidental deaths of people under 65 years old at lag2 ( P>0.05 ) . Conclusion The ambient NO2, CO, O3 and PM2.5 pollution increase daily non-accidental deaths, which shows a lag effect．

Objective To investigate the relation of contrast-enhanced ultrasound ( CEUS ) characteristics and microvessel density ( MVD ) in the breast cancer .Methods From October 2010 to February 2012, 45 cases of patients with breast cancer were studied in Yantai Yuhuangding Hospital , Affiliated to Qingdao University Medical College .All lesions were examined by CEUS before surgery .The blood perfusion parameters such as rising time (RT),peak intensity(PI),time to peak(TTP),wash-in slope (WIS) and mean transit time ( MTT) were obtained by time-intensity curve ( TIC).Immunohistochemical staining for anti-factor CD34 was performed on surgery specimen and the MVD was evaluated .The CEUS characteristics and blood perfusion parameters between different MVD groups of breast cancer were compared.Results In 45 cases of breast cancer,mean MVD was(47.6 ±14.2)/high power field(HPD). Twenty-one cases(46.7%) were classified as high MVD group(MVD>48/HPD) and 24 cases(53.3%) were classified as lower MVD group ( MVD≤48/HPD) .Besides two cases without contrast agent perfusion in CEUS imaging, blood perfusion was observed in 43 cases (95.6%).Heterogeneous enhancement was observed in 25 cases(55.6%).Local blood perfusion defect was observed in 27 cases(60.0%).Irregular shape was observed in 37 cases(82.2%).Centripetal enhancement was observed in 25 cases(55.6%). Penetrating surrounding vessels was observed in 32 cases(71.1%).Poorly-defined margin was observed in 34 cases(75.6%).Compared with the surrounding normal breast tissue ,RT and TTP of center region of neoplasms was shorter[(9.3 ±3.3)s vs (11.1 ±3.7)s and (25.3 ±5.9)s vs (27.5 ±6.4)s],PI was higher[(12.1 ±4.6)dB vs (9.2 ±2.8)dB],WIS was higher(1.0 ±0.4 vs 0.8 ±0.3) and differences were significant(t =-3.001, -4.785,6.987 and 5.438,all P <0.05).Compared with center region of neoplasms,TTP of periphery region of neoplasms was shorter [(22.2 ±6.0)s vs (25.3 ±5.9)s],PI was higher[(15.4 ±5.1)dB vs (12.1 ±4.6)dB],WIS was larger(1.3 ±0.5 vs 1.0 ±0.4) and differences were significant(t=-2.839,3.194 and 3.151,all P<0.05).The detection rate of blood perfusion defect and heterogeneous enhancement was higher in the high-MVD group than in the low-MVD group(χ2 =4.0179 and 7.2024,both P <0.05).While the enhancement shape,margin and penetrating vessels showed no statistical difference between the two groups .Breast neoplasms in the high-MVD group had higher PI than those in the low-MVD group[(18.2 ±5.6)dB vs (12.9 ±3.1)dB,t=-3.738,P<0.05].While the RT, TTP and WIS showed no statistical difference between the two groups ( t=-0.798,-0.760 and -0.378, all P>0.05).Conclusion CEUS characteristics of breast lesions were associated with MVD ,which may reflect the microvessel distributional characteristics of neoplasm and may be one of bases used to evaluate neoplasm angiogenesis .

OBJECTIVETo search for the best therapy for recurrent herpes simplex.

METHODSNinety-six cases were randomly divided into an auricular point sticking plus moxibustion group (treatment group, n = 54), a medication group (control group, n = 42). The treatment group were treated with auricular sticking at points Spleen, Lung, Kidney, and others, and moxibustion was applied at Zusanli (ST 36), Fenglong (ST 40), and local blister; the control group were treated by oral administration and external application of aciclovir.

RESULTSThe cured rate and the total effective rate were 55.5% and 100.0% in the treatment group, and 9.5% and 61.9% in the control group, respectively, with a significant difference between the two groups (P<0.05).

CONCLUSIONThe auricular point sticking plus moxibustion is a better therapy for recurrent herpes simplex, with a significantly better therapeutic effect than that of the medication.

Acupuncture Points ; Acupuncture Therapy ; Administration, Oral ; Herpes Simplex ; Humans ; Moxibustion

OBJECTIVETo explore the molecular biology mechanism of acupuncture on improving immune function damage induced by chemotherapy in cancer-bearing mice.

METHODSSeventy-two mice (36 mice in 3-day treatment and 5-day treatment, respectively) which were successfully made into cancer-bearing model were divided into a blank group, a model group, an acupuncture group and a moxibustion group by stratified randomization method, 9 mice in each one. Except for the mice in the blank group, the remaining mice were treated with intra-peritoneal injection of cyclophosphamide (CTX, 150 mg/kg), to establish the cancer-bearing mice of CTX. The mice in the blank group were treated with intraperitoneal injection of 0.9% NaCl (identical dose as other groups). After 4 h, the mice in the acupuncture group and moxibustion group were treated with acupuncture and moxibustion at "Dazhui" (GV 14), "Geshu" (BL 17), "Shenshu" (BL 23), "Zusanli" (ST 36), once a day. The mice in the blank group and model group were treated with immobilization and fixation during the same time. On the next day of the end of 3-day and 5-day treatment, the sample was collected. The ELISA method was applied to measure the contents of IL-12 and TNF-α in spleen of all the mice.

RESULTSAfter 3-day and 5-day treatment, compared with the blank group, the contents of IL-12 and TNF-α in spleen in the model group were reduced (all P < 0.05); compared with the model group, the contents of IL-12 and TNF-α in spleen in the acupuncture group and moxibustion group were increased (all P < 0.05), but the content of IL-12 and TNF-α in the acupuncture group was not different from that in the moxibustion group (both P > 0.05).

CONCLUSIONAcupuncture and moxibustion could effectively increase the contents of IL-12 and TNF-α in spleen of CTX cancer-bearing mice, which could relieve chemotherapy-induced immune function damage to improve immune function.

Acupuncture Therapy ; Animals ; Cyclophosphamide ; adverse effects ; Humans ; Interleukin-12 ; genetics ; metabolism ; Male ; Mice ; Moxibustion ; Neoplasms ; chemically induced ; genetics ; metabolism ; therapy ; Spleen ; metabolism ; Tumor Necrosis Factor-alpha ; genetics ; metabolism