Objective To analyse the effect of ursodeoxycholic acid on serum levels of cholyglycine ( CG ) , conjugated bile acid ( CBA ) and soluble vascular cell adhesion molecules (sVCAM-1) in patients with intrahepatic cholestasis of pregnancy.Methods 56 patients who were diagnosed with intrahepatic cholestasis of pregnancy in our hospital were collected.All patients were randomly divided into experimental group and control group, 28 cases in each group. The control group were treated with dexamethasone, and the experimental group were treated with the treatment of ursodeoxycholic acid, after 7d of treatment, the serum levels of glucocholic acid , CBA, ALT, AST and sVCAM-1 were detected in all patients. Results After treatment, compared with control group, the serum CG,TBA,ALT,AST and sVCAM-1 levels were significantly lower in the experimental group,and the difference was statistically significant (P<0.05).Conclusion The ursodeoxycholic acid can significantly reduce the serum CG,TBA, ALT,AST and sVCAM-1 levels in patients with intrahepatic cholestasis of pregnancy,improve pregnancy outcome,with guidance significance for clinic.

This article make an objective comment on the classic of Eight Extra Meridians. By making a detailed descriptions of this book in its characteristics of absorbing experiences from other famous doctors, comparing various thoughts of doctors, emphasizing acupuncture, moxibustion and drugs, and highlighting eight confluent points, we pointed out that the study and research of the this book have clinical guidance.

After chemotherapy, the healthy qi of acute leukemia (AL) patients was severly demaged, remnant toxin with internal amassment, qi and blood deficiency, blood stasis, vertigo with syndrome of stagnation and blockade of phlegm-damp. The clinical symptoms with cold-heat intermingled together which are complicated and changable were quite similar to those of Jueyin disease. Therefore, this paper tried to explore the differentiation and treatment of AL after chemotherapy from Jueyin. It was concluded that the treatment of AL after chemotherapy should be treated with cold and heat method, attacking and supplementing together, with nourishing the liver as the main part. At the same time, it was importance to protect healthy qi. Combined with the basic pathogenesis of AL, it was proposed that Danggui-Sini Decoction was suitable for the treatment of AL after chemotherapy. All in all, the paper explored the differentiation and treatment of AL after chemotherapy from Jueyin in order to use more Chinese medicine therapy in the field of AL treatment.

Objective To investigate the association between pet ownership and lung function in children without asthma,and to provide scientific basis for the improvement of lung function in children. Methods Data was drawn from the cross-sectional study ,the clusters were randomly selected from 1 to 2 junior middle schools and primary schools in 24 administrative regions of seven cities in Liaoning Province. The ATS questionnaire survey was performed,and lung function including the forced expiratory volume in 1 second(FEV1),forced vital capacity (FVC),maximal mid-expiratory flow(MMEF)and peak expiratory flow(PEF)was measured by utilizing portable electronic spirometers. Results In this study ,about 6280 children without asthma aged 7 ~ 14 years were enrolled,49.47 % of the children was male. The average lung function of FVC,FEV1,PEF and MMEF was (2.63±0.75)L,(2.47 ± 0.70)L,(4.80 ± 1.42)L/s and(3.37±1.05)L/s,respectively. By adjusting confounding fac-tors,we found pet ownership in the first 2 years of life was significantly associated with the predicted lung function impairment of FVC<85%(aOR=1.30;95%CI:1.01~1.67);current pet ownership was significantly associated with the predicted lung function impairment of FVC < 85%(aOR = 1.32;95% CI:1.09 ~ 1.61),the predicted FEV1<85%(aOR=1.47;95%CI:1.19~1.83),the predicted PEF<75%(aOR=1.48;95%CI:1.16~1.88) and the predicted MMEF<75%(aOR=1.35;95%CI:1.09~1.66). The in utero exposure was not related to lung function impairment. Conclusion Pets ownership has damaging effects on lung function in children without asth-ma,and it reduces FVC,FEV1,PEF and MMEF in children.

The pathological presentation of Alzheimer disease (AD), the leading cause of senile dementia, involves regionalized neuronal death and an accumulation of intraneuronal and extracellular filaments termed neurofibrillary tangles and senile plaques, respectively. One of the ?-amyloid peptides (A?), the A?1-42 form, is primarily responsible for neuronal damage and cell death that is the main component in the senile plaques. Over the past twenty years, the amyloid hypothesis has been strongly supported by a wealth of evidence, including data from genetic studies of Alzheimer disease. Amyloid cascade hypothesis states that the accumulation and deposition of fibrillar A? is the primary driver of neurodegeneration and cognitive decline leading to dementia. AD is a clinicopathological syndrome in which different gene defects can lead--directly or indirectly--to alter APP expression or proteolytic processing as such to change A? stability or aggregation. These result in a chronic imbalance between A? production and clearance. Gradual accumulation of aggregated A? initiates a complex, multistep cascade that includes gliosis, inflammatory changes, neuritic/synaptic change, tangles and transmitter loss. The evidence that links A? to the pathogenesis of AD is substantial, but the means by which these peptides exert their toxic effects, and where in neuronal cells they act, is far from clear. The up-to-date proceeding in the molecular mechanism of ?-amyloid peptides is overviewed.

Objective To investigate the action of interlukin-2(IL-2),interlukin-6(IL-6) and its soluble receptors (sIL-2R,sIL-6R) in the first episode of depression in the patients of Uyghur nationality and the differences in IL-2,IL-6 and sIL-2R,sIL-6R levels between the responsive depressed patients and the refractory depressed patients treated with venlafaxine.Methods A case-control study design was conducted.57 first-episode patients with depression (patient group) and 55 healthy people matched with gender and age (control group) were recruited in the study.An intervention with sustained-releasing venlafaxine tablets at fixed dose of 150 mg/d was performed in the patient group.The severity of the illness was evaluated by using the Hamilton's depression scale (HAMD-17) before and after the therapy.And by calculating the reduction rate of HAMD-17 (≥ 50％ or ＜50％),the patients were divided into the responsive or refractory groups.The serum levels of IL-2,IL-6,sIL-2R and sIL-6R in patients and controls were tested by ELISA,and a re-test was done with the patients after treatment.Results There were statistical significant differences of the levels of serum IL-2,IL-6 and sIL-2R,sIL-6R between the patients and the control group (P ＜ 0.01).After treatment,the levels of serum IL-2,IL-6,sIL-2R and sIL-6R in responsive patients were significantly decreased when compared with those before the treatment(P＜ 0.01).The four indexes of refractory patients didn' t alter after venlafaxine treatment (P ＞ 0.05).There were positive correlations between HAMD,serum IL-2 (r =0.677 ; P =0.000) and IL-6 (r =0.197 ; P =0.033) before treatment in all patients.Conclusion Serum IL-2 and IL-6 may play a role in the onset of the depression.The efficacy of venlafaxine is negatively correlated with the levels of serum IL-2 and IL-6.Regulating the imbalanced inflammatory cytokines and the immune system may be one of the mechanisms of drug therapy of depression.

Objective To prepare a new type of chitosans nanoparticles(PEG/CS-EPI NPs),which contains epirubicin and modified by PEG.Furthermore,to investigate the anticancer activity of the NPs in vitro and in vivo.Methods The ionic gelation technique was employed to prepare the PEG/CS-EPI NPs and CS-EPI NPs.The particle size and shape were illustrated respectively by laser scattering and transmission electron microscopy.The proliferation of nasopharyngeal carcinoma cells was detected by MTT assay;The mouse model of implantation murine sarcoma cells(S-180) was applied to evaluate the anticancer effectiveness of PEG/CS-EPI NPs and CS-EPI NPs in vivo.Results The PEG modified CS NPs were discrete and uniform spheres with average diameter of 322.1 nm.The rate of drug loading and encapsulation is 13% and 74% respectively.The results of the anticancer tests showed a sustained cytotoxicity of loading drug NPs on nasopharyngeal carcinoma cells in vitro and the stealth nanoparticles was more powerful than ordinary nanoparticles on the inhibitory potency in vivo.Conclusion Stealth chitosan nanoparticles as compared with ordinary chitosan nanoparticles seems to be a potential candidate of chemotherapy drug carriers.

Objective To establish a digital segmentational data set of larynx based on Chinese visible human (CVH). Methods Magnetic lasso and polygon tools of Photoshop were used to segment the small organs and structures of larynx of CVH to establish the segmentational data set of larynx. After conversion of the image format, the segmentational structures were extracted automatically with Thresholding Method and presented 3-D visualized, and then were checked up by its result of 3D reconstruction with Amira 4.1 software. Results Many small structures of larynx were segmentated, such as laryngeal cartilage, laryngeal muscles, vocal cords and so on. Then the segmentational data set of larynx based on CVH was established, which can be used to 3-D reconstruction accurately. Conclusion The segmentational data set of larynx is accurate and integrated, which is helpful to establish the elaborate model of larynx and can provide the method of color image segmentation.

Objective:To construct an intelligent performance measurement system of gastrointestinal endoscopy and to analyze its value for endoscopic quality improvement.Methods:The intelligent gastrointestinal endoscopy performance measurement system was developed by using the deep convolutional neural network (DCNN) and deep reinforcement learning, based on the Digital Imaging and Communications in Medicine. Images were acquired of patients undergoing gastrointestinal endoscopy at Digestive Endoscopy Center of Renmin Hospital of Wuhan University from December 2016 to October 2018. The system applied cecum recognition model (DCNN1), images in vitro and in vivo recognition model (DCNN2), and identification model at 26 gastric sites (DCNN3) to monitor indices such as cecal intubation rate, colonoscopic withdrawal time, gastroscopic inspection time, and gastroscopic coverage. Images of 83 gastroscopies and 205 colonoscopies acquired at Digestive Endoscopy Center of Renmin Hospital of Wuhan University from March to November 2019 were randomly selected to examine the effectiveness of the system. Results:The intelligent gastrointestinal endoscopy performance measurement system consisted of quality analysis of both gastroscopy and colonoscopy, including all indices, and could be generated automatically at any time. The accuracy for cecal intubation rate, colonoscopic withdrawal time, gastroscopic inspection time, and gastroscopic coverage were 92.5% (172/186), 91.7% (188/205), 100.0% (83/83), 89.3% (1 928/2 158), respectively.Conclusion:The intelligent performance measurement system for gastrointestinal endoscopy can be recommended for the quality control of gastrointestinal endoscopy, from which endoscopists can get feedback and improve the quality of gastrointestinal endoscopy.

Objective: To examine the influencing factors of the efficiency of county-level centers for disease control and prevention ( CDCs) in China. Methods:458 county-level CDCs were selected based on a systematic sam-pling method. Multilevel modeling was used to analyze the region-level and institution-level influencing factors affect-ing the efficiency of CDCs. Results: It was found that the region ( province) is associated with the efficiency of a CDC. The region-level factor of population density exhibited a significant influence, while the institution-level factors such as the proportion of health technicians, service income and CDC laboratories per capita also had an influence on overall efficiency. Conclusions: Both the region-level and institution-level determinants influence efficiency. Multi-level modeling can help researchers gain a comprehensive understanding of the influencing factors that affect the CDC efficiency.