Objective To determine the relation between the expression of urocortin and corticotropin-releasing hormone receptor 2? (CRH-R2?) in the placenta and pathogenesis of preeclampsia. Methods Placentas were collected from 20 pregnant women with preeclampsia as study group and 20 normal pregnant women as control group. Urocortin mRNA and CRH-R2? mRNA were measured by semi-quantitative reverse transcriptase polymerase chain reaction (RT-PCR). Urocortin peptide was measured by immunohistochemistry. Results (1) The mRNA expression of urocortin was significantly higher (P

Objective To examine the expression of urocortin mRNA during labor and the effect of uroco rtin on myometrial contractility, and to investigate its role in the onset and p rogress of labor. Methods (1) Semi-quantitative reverse transcription-polymerase chain reaction (RT -PCR),using ?-actin as internal standard was applied to determine the levels of urocortin mRNA in human placenta and myometrium from the group of cesarean se ction before (10 cases) and during (10 cases in latent phase and 10 cases in act ive phase) labor.(2) The isolated myometrial strips of pregnant women (n=24 ) were prepared.The effects of urocortin with or without prostaglandin F 2? (PGF 2?) and oxytocin on myometrial contractility were evaluated by area s under the curve. Results (1) Semi-quantitative RT-PCR showed that the expression level of urocortin mRN A in placenta and myometrium after the onset of labor were higher than before la bor (1.23 ?0.52, 1.32?0.22; 0.83?0.38, 0.94?0.13, respectively, P0.05). Conclusion The study indicates urocortin may indirectly m odulate myometrial contractility during labor.

Objective To explore facial characteristics of patients with different organ diseases; To provide some references for objective study on TCM inspection information. Methods Smart TCM-I type Life Information Analysis Systems was used to detect facial characteristics of 510 patients with five zang-organs diseases. 36 specific quantitative parameters including red ?, green (G), blue (B) and hue (H), saturation (S), value (V) of the face, forehead, eyes, cheeks, nose and chin were collected, and the Kruskal M-Wallis H and Nemenyi test were used for statistical analysis. Results Among the 510 patients with five zang-organs diseases, 96 patients belonged to lung system diseases, 105 heart system diseases, 101 liver system diseases, 107 spleen and stomach system diseases and 101 kidney system diseases. There was statistical significance in R, G, B, H, S, and V in forehead, eyes, cheeks and nose. Conclusion Facial characteristics can provide objective references for the facial division of five zang-organs diseases.

After health information push service on Internet was investigated ,suggestions were put forward for impro-ving the health information service by making use of the Wechat public platform according to the incomplete and non-professional health information service , rampant advertisements and unaccessible personal information on Internet .

Objective: To monitor and analyze the epidemiological characteristics of influenza in schools and understand the disease burden of students, and to provide a scientific reference for instructing the prevention of influenza in schools. Methods: A school influenza surveillance sentinel to conduct influenza like case (ILI) surveillance and outbreak surveillance. Through network, we understood the burden of flu disease among students. Descriptive epidemiology was used to analyze influenza like case surveillance and questionnaire survey data. Results: Surveillance confirmed that from the 42th week of 2019 to the 1st week of 2020, the cumulative reported ILI of 3 school influenza surveillance sites in Jinan accounted for 7.91% (ILI%) of the total number of surveillance personnel during the same period, with the highest ILI% (24.19%) of kindergarten children, ILI% gradually decreased with the increase of grade, and teachers were the lowest. The reporting of ILI was concentrated in the 49th to 52nd week of 2019, during which the reported influenza like cases accounted for 84.81% of the total number of ILI reported during the surveillance period. Two influenza outbreaks were monitored. The pathogens were H3N2 and B (Victoria). The epidemics mainly occurred in the lower grades of elementary school. A survey of 2 297 students found that 577 people had fever and respiratory symptoms since October 2019. Among them, 85.26% of them went to the hospital, 32.75% of those who used anti influenza drugs such as oseltamivir, and 64.81% of those who used antibiotics. 42.63% received infusion therapy, 3.99% were hospitalized, and the average cost of inpatients was 6 686 yuan. The sick students were absent from school for an average of 3.77 days, and the parents of the sick children missed work for an average of 4.26 days. Conclusion Surveillance of influenza like cases in schools is an important way to proactively discover influenza epidemic trends and outbreaks, and to accurately grasp the characteristics of influenza epidemics in schools. The key populations affected by influenza are kindergarten children and lower grades of primary school students. Suffering from influenza has caused a heavy disease burden on students and children in kindergartens, and is also an important factor that causes student absenteeism and parents to miss work.

We conducted in-depth analysis on the use of a popular Chinese social networking and microblogging site, Sina Weibo, to monitor an avian influenza A(H7N9) outbreak in China and to assess the value of social networking sites in the surveillance of disease outbreaks that occur overseas. Two data sets were employed for our analysis: a line listing of confirmed cases obtained from conventional public health information channels and case information from Weibo posts. Our findings showed that the level of activity on Weibo corresponded with the number of new cases reported. In addition, the reporting of new cases on Weibo was significantly faster than those of conventional reporting sites and non-local news media. A qualitative review of the functions of Weibo also revealed that Weibo enabled timely monitoring of other outbreak-relevant information, provided access to additional crowd-sourced epidemiological information and was leveraged by the local government as an interactive platform for risk communication and monitoring public sentiment on the policy response. Our analysis demonstrated the potential for social networking sites to be used by public health agencies to enhance traditional communicable disease surveillance systems for the global surveillance of overseas public health threats. Social networking sites also can be used by governments for calibration of response policies and measures and for risk communication.

Objective To study the cytotoxicity of bi-chimeric antigen receptors modified T lymphocytes (BiCAR-T) on the human acute myeloid leukemia (AML) cell line HL60 in vitro and the anti-tumor effects of BiCAR-T on the NOD SCID mouse model of AML in vivo.Methods The BiCAR-T were prepared and the expression of chimeric antigen receptor (CAR) of prepared BiCAR-T was analyzed by flow cytometry.In vitro study was divided into two groups:the experiment group (BiCAR-T) and the control group (T lymphocyte).The killing rate of BiCAR-T in vitro on HL60 cells was determined by CCK8 assay and the level of interferon-γ (IFN-γ) secreted from BiCAR-T co-culturing with HL60 cells for 48 hours was detected by enzyme linked immunosorbent assay (ELISA) at different effect/target ratios (5∶1,10 ∶ 1,20 ∶ 1).The NOD SCID mice AML model was established by the injection of HL60 cells through tail vein and used to assess the antitumor effects in vivo.The mice were randomly divided into three groups according to the random number table:the blank control group receiving 0.9％ NaCl 0.2 ml through tail vein,the model group and the treatment group receiving 1 × 107 HL60 cells in 0.2 ml phosphate buffer saline (PBS).After 20 days,the treatment group was injected with 2 × 107BiCAR-T in 0.2 ml PBS 3 times a week for 2 weeks,while the other two groups received 0.9％ NaCl 0.2 ml.The pathological changes in the mice livers and spleens were observed after 2 weeks of treatment.Results The CAR expression rates of BiCAR-T were more than 50.00％.In vitro experiments proved that the killing rates of BiCAR-T in the experimental group and T lymphocytes in the control group on HL60 cells were (25.43 ±1.32)％ vs.(16.18 ±0.75)％,(50.33±3.11)％ vs.(25.47±1.27)％,and (85.89 ± 3.96) ％ vs.(49.45 ± 2.77) ％ at different effect/target ratios (5 ∶ 1,10 ∶ 1,20 ∶ 1).The killing efficiency of BiCAR-T and T lymphocytes on HL60 cells was significantly different (F =404.17,P ＜ 0.001);the killing efficiency of BiCAR-T and T lymphocytes on HL60 cells was significantly different at different effect/ target ratios (F =548.09,P ＜ 0.001);and the killing efficiency on HL60 cells in the experimental group (BiCAR-T) was significantly higher than that in the control group (T lymphocytes) at different effect/target ratios (F =45.36,P ＜ 0.001).The IFN-γlevels secreted from BiCAR-T in the experiment group and T lymphocytes in the control group co-culturing with HL60 ceils after 48 h were (435.65 ± 20.44) pg/ml vs.(356.75 ± 19.87) pg/ml,(1 639.98 ± 95.75) pg/ml vs.(1 109.37 ± 80.98) pg/ml,and (3 467.43 ± 187.54)pg/ml vs.(2 245.52 ± 112.66)pg/ml.The IFN-γlevel in the experiment group (BiCAR-T) and the control group (T lymphocytes) was significantly different (F =156.24,P ＜ 0.001);the IFN-γ level was significantly different at different effect/target ratios (F =857.67,P ＜ 0.001);the IFN-γlevel in the experimental group (BiCAR-T) was significantly higher than that in the control group (T lymphocytes) at different effect/ target ratios of 5 ∶ 1,10 ∶ 1,20 ∶ 1,respectively (F =46.31,P ＜ 0.001).The result of hematoxylineosin staining (HE) staining showed that leukocyte infiltration in the treatment group was significantly decreased compared with the model group.Conclusion The experimental results showed that BiCAR-T is a kind of efficient targeted immunocyte modified by gene engineering,and it can significantly inhibit leukocyte infiltration of AML in vivo and in vitro.

Objective To analyze the epidemiological characteristics and spatiotemporal clustering of scarlet fever in Jinan, from 2014-2019, and to provide a basis for scarlet fever prevention and control. Methods The case data of scarlet fever in Jinan during 2013-2019 were extracted from the Chinese National Notifiable Infectious Disease Reporting System. Descriptive epidemiology and spatiotemporal rearrangement scanning methods were used to analyze the epidemiological characteristics and spatiotemporal distribution of scarlet fever. The RR values of scarlet fever in different towns (streets) were calculated, and the contour map of RR value was drawn. Results A total of 9 715 cases of scarlet fever were reported in Jinan from 2014 to 2019. During this period, the number of cases and the incidence rate showed a gradual increase, with two seasonal peaks in the winter and spring each year. Spatiotemporal clustering analysis detected a total of eight spatiotemporal aggregation areas, and the strongest one was in Licheng and Lixia Districts, from March 2017 to December 2019 (RR=3.45, LLR=577.88, P<0.001). The relative risk maps in each year from 2014 to 2019 were similar, and the areas with the highest risk were located in the central area of Jinan. Conclusion From 2014 to 2019, scarlet fever is highly prevalent in the central area of Jinan, with obvious spatial and temporal clustering. There are clustering areas in the central, southwest and eastern areas of Jinan, and there was a tendency for the disease to spread to Zhangqiu in the east and Pingyin in the southwest.