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Copyright of Guihaia is the property of Guihaia Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Shandong Medical Journal is the property of Shandong Medical Health Newspapers and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

目的观察胃癌患者腹水及外周血中乙醛脱氢酶1(ALDH1)、胃泌素17(G-17)水平变化,并探讨其相关性。方法选择胃癌伴腹水患者43例(腹水组)、胃癌不伴腹水患者49例(无腹水组),另选择25例同期体检为慢性非萎缩性胃炎患者作为对照组,采用ELISA法检测腹水组腹水及各组外周血中ALDH1和G-17水平,采用Pearson相关法分析腹水及外周血中ALDH1和G-17水平相关性。结果腹水组腹水中ALDH1、G-17水平分别为(27. 46±11. 58) ng/m L、(50. 53±25. 47) pmol/L,外周血中ALDH1、G-17水平分别为(15. 57±7. 59) ng/m L、(35. 36±20. 68) pmol/L;无腹水组外周血中ALDH1、G-17水平分别为(9. 38±4. 98) ng/m L、(23. 65±8. 79) pmol/L;对照组外周血中ALDH1、G-17水平分别为(3. 32±1. 64) ng/m L、(7. 67±6. 23) pmol/L。三组外周血中ALDH1、G-17水平两两比较,P均<0. 05。腹水组中,腹水和外周血中ALDH1水平与G-17水平呈正相关(r=0. 592、P <0. 05; r=0. 523、P <0. 05);在无腹水组中,外周血中ALDH1水平与G-17水平呈正相关(r=0. 655、P <0. 05)。结论胃癌患者腹水及外周血中ALDH1、G-17异常高表达,且二者具有正相关性。 [ABSTRACT FROM AUTHOR]

Congenital laryngeal cyst is one of the causes of neonatal airway obstruction. The incidence of congenital laryngeal cyst ranges from 1.82/100,000 to 3.49/100,000, 50% of which were found in autopsy of asphyxiated children. Lack of awareness of the disease can lead to delays in the condition and even death of newborns. This paper reports 2 cases of congenital laryngeal cyst of newborn delivered by the Characteristic Medical Center of The Chinese People's Armed Police Force. When newborns suffer from asphyxia of unknown cause, have low Apgar score and poor resuscitation effect after birth, besides obstetric factors, congenital laryngeal cyst to neonatal respiratory obstruction should also be considered. Laryngoscopy is recommended. Cyst puncture and drainage can be used in emergency to reduce the cyst volume in the shortest time and alleviate the critical situation of dyspnea. One step therapy wins the opportunity. [ABSTRACT FROM AUTHOR]

Copyright of Nursing of Integrated Traditional Chinese & Western Medicine is the property of Journal of Clinical Nursing in Practice (Editorial Board, Shanghai Jiao Tong University Press) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Artificial reef is a kind of artificial structure set in the water. Through the construction of artificial reef, it can create a good ecological environment for fish and other aquatic organisms, so as to achieve the purpose of protecting and breeding fishery resources. In this study, according to the characteristics and growth habits of sea cucumber, a sea cucumber breeding reef was designed as an artificial adhesion base. Based on the hydrodynamic test of sea cucumber breeding reef, the influence of the single structure of sea cucumber breeding reef on the flow field effect around the reef was analyzed, and the stress of sea cucumber breeding reef under the condition of the same inflow velocity was obtained. According to the simulation results, the up welling volume and back eddy volume of sea cucumber breeding reef were calculated. At the same time, the monomer stability of sea cucumber breeding reef was discussed. The results showed that due to the small aperture and dense gap, the up welling and back eddy volume of sea cucumber breeding reef were both larger. When the inflow velocity was 0.5 m/s, the anti-slip coefficient and anti-overturning coefficient of sea cucumber breeding reef were both greater than 1, indicating that the sea cucumber breeding reef has good safety performance. Hydrodynamic model was used to simulate the flow field effect in artificial reef area and optimize the structure design of artificial reef to maximize the biological attraction and proliferation effect of the artificial reef, which can provide theoretical guidance and technical support for the construction of artificial reef area. [ABSTRACT FROM AUTHOR]

Immobilization is an effective method to reduce the toxicity of heavy metals in soil. The ability of modified biochar to immobilize heavy metals has achieved remarkable results, and it has been widely a concern in soil remediation. However, the comprehensive mechanism of immobilizing heavy metals in contaminated soil by modified biochar needs further exploration. Therefore, CiteSpace data analysis software was used to analyze the mechanism of fixing heavy metals in soil by modified biochar・ Oxygernanionic heavy metals As and cationic heavy metals Cd were taken as examples to analyze the mechanism of immobilizing heavy metals in soil by modified biochar・ The mechanisms of redox, surface coprecipitation, complexation, ion exchange, and electrostatic attraction were reviewed・ The reasons and methods of different mechanisms of modified biochar enhancing immobilized soil heavy metal were summarized, and the prospect of its treatment of heavy metal pollution in soil was prospected, which provided a refierence for the application of modified biochar in the treatment of heavy metal pollution in soil. [ABSTRACT FROM AUTHOR]

The ZH, ZDR and KDP of Guangzhou S-band dual polarization radar and rainfall data of 219 automatic meteorological stations in Foshan are used to form 8 datasets. Based on the convolutional neural network CNN, a radar quantitative precipitation estimation model is established, which will be used for ground precipitation estimation. The evaluating results of 8 datasets applied to the same precipitation estimation model are compared to each other. The results show that: The increase in the number of channels(N) of the datasets is beneficial to reduce the RMSE and improve CORR of the quantitative rainfall estimation results; For the datasets Z, Z_1~3 km and Z_6 min formed by ZH, as the number of channels increases, the performance of the data sets Z, Z_1~3 km and Z_6 min are gradually improved, and the RMSE of Z_1~3 km and Z_6 min are 4.71 and 3.78, which are -1.3% and 18.7% lower than that of dataset Z; the CORR of Z_1~3 km and Z_6 min are 0.82 and 0.88, which are 2.5% and 10% higher than that of dataset Z; Among other datasets composed of KDP and ZDR, the dataset Z_ZDR_KDP has the best fitting performance. The RMSE is 3.97, which is 14.6% lower than that of dataset Z, and the CORR is 0.86, which is 7.5% higher than that of dataset Z; The statistical results of RMSE, MBR, AE and RE for seven precipitation levels of 0.6～5 mm, 5～10 mm, 10～20 mm, 20～30 mm, 30～40 mm, 40～50 mm and above 50 mm respectively, show that dataset Z_6 min has the highest rainfall accuracy. [ABSTRACT FROM AUTHOR]

Objective To explore the self-rated health status and influencing factors of the elderly in rural areas of China, and to provide decision-making reference for relevant departments to formulate healthy aging strategies for the elderly in rural areas. Methods Using the data of China family panel studies (CFPS) in 2020, descriptive analysis, univariate analysis, and multivariate logistic regression were used to analyze the self-rated health status and its influencing factors of the elderly in rural areas of China. Results In total 72.6% of the 2 717 elderly in rural areas of China rated themselves as healthy. The age group of 60 to 74 years old (OR=0.694, 95%CI: 0.501-0.961), lower income (OR=0.503, 95%CI: 0.372-0.681), no smoking or no current smoking (OR=0.682, 95%CI: 0.538-0.865), and no alcohol or less alcohol now (OR=0.672, 95%CI: 0.491- 0.920) were associated with poor self-rated health status. Normal BMI index (OR=1.868, 95% CI: 1.298-2.687), по hospitalization within one year (OR=2.537, 95%CI: 2.015-3.194), no physical discomfort within two weeks (OR=4.205, 95% CI: 3.422-5.167), and no chronic diseases (OR=2.530, 95% CI: 2.051-3.121) were associated with better health status. Conclusion The self-rated health status of the elderly in rural areas of China is good, but it is still necessary to strengthen the economic support, improve the construction of medical and health service system, improve the family support and social support system, and actively carry out specialized health education for the elderly in rural areas to promote their health management and quality of life. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao is the property of Chinese Journal of Applied Ecology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Clinical Hepatology / Linchuang Gandanbing Zazhi is the property of Journal of Clinical Hepatology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Innovation ability is one of the core tasks of education of contemporary university,this paper takes College of Optical and Electronical Information,Changchun University of Science and Technology as an example,to sum up the experience of cultivating college students' innovation ability in the daily teaching in recent years,and to develop a feasible cultivation plan and cultivation strategy.It discusses the basic ideas of university education teaching reform and puts forward the " theory,practice,innovation" a series of diversified training system,introduces some teaching measures such as three preparation methods,project pedagogy and interactive software method to encourage students to generate innovation interest and conscious,comprehensively improves the innovative teaching ability of university teachers,especially young teachers,gives full play to the leading role of teachers in the cultivation of innovation ability.We have created a unique independent college teaching model of both theoretical and practical skills,so as to realize the cultivation of innovative talents in colleges and universities. [ABSTRACT FROM AUTHOR]

Primary hyperaldosteronism (PA) is the most common cause of secondary hypertension. Current studies have shown that mutations in KCNJ5, ATP1A1, ATP2B3, CACNA1D genes result in changes intransmembrane ion channel protein of zona glomerulosacells, which can eventually activate voltage-gated calcium channels and increase calcium influx. Thus elevating intracellular calcium level, which leads to aldosterone overproduction. These findings indicate that calcium channels play a key role in the pathogenesis of PA, which not only helps us further understand the pathogenesis of PA, but also provides potential medication targets for PA. [ABSTRACT FROM AUTHOR]

Phosphoglycerate dehydrogenase (3-PGDH or PHGDH) is the key enzyme of de novo serine biosynthesis. The PHGDH gene located in human chromosomes 1p12, which is highly expressed in normal tissue, especially for the nervous system function. Recently, it was shown that a part of intermediate metabolites of glycolysis flew to serine biosynthesis. It was found PHGDH gene amplification and over expression in some tumor, PHGDH regulated tumor cell proliferation, apoptosis and invasion. Cell metabolism of tumor is benefit to tumor oncogenesis and progression. The study found that silence PHGDH can inhibit tumor cell proliferation, invasion and increase cell apoptosis. And PHGDH may be a potential treatment target. In this paper, we will review briefly the studies on PHGDH, including structural features, biological function and the genesis and development effect in some tumor. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Pesticide Science / Nongyaoxue Xuebao is the property of Chinese Journal of Pesticide Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Progress in Modern Biomedicine is the property of Publishing House of Progress in Modern Biomedicine and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Veterinary Science / Zhongguo Shouyi Xuebao is the property of Chinese Society of Veterinary Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

With the increasing prevalence rate of nonalcoholic fatty liver disease (NAFLD), this disease has been taken more seriously, more and more studies have been carried out in this field, and some important progress has been made. This article introduces the important research findings in the epidemiology, risk factors, pathogenesis, noninvasive diagnosis, and treatment of NAFLD, as well as related liver cirrhosis and hepatocellular carcinoma in China within the past five years, in order to know the current status of related research. This article points out that there still exists a certain gap between related clinical and basic research in China and the rest of the world, especially in the public's perception and the medical workers' emphasis on NAFLD. In the future, the research on epidemiology, pathogenesis, patient management, and drug therapies should be enhanced. [ABSTRACT FROM AUTHOR]

Objective To investigate the clinical value of apparent diffusion coefficient (ADC) in classification of liver fibrosis in chronic liver diseases. Methods A total of 63 chronic liver disease patients with liver fibrosis who were admitted to The Second People's Hospital of Zhuhai from December 2012 to June 2015 were analyzed retrospectively and divided into S0 group (24 patients), S1 group (18 patients), S2 group (10 patients), S3 group (6 patients), and S4 group (5 patients) according to the fibrosis stage. All the patients received conventional magnetic resonance imaging scan and diffusion-weighted imaging, and ADC values were obtained. The Kruskal-Wallis H test was applied for comparison between multiple groups, and the Mann-Whitney U test was applied for further comparison between each two groups; the Spearman rank correlation analysis was applied for correlation analysis. Results Classification of liver fibrosis in chronic hepatitis was negatively correlated with ADC (r=-0.389, P＜0.001); ADC showed significant differences between the five groups (H=19.904, P＜0.001); ADC value in the S0 group was significantly different from those in the S1, S2, S3, and S4 groups (U=18.5, 3.0, 0 and 0, respectively, all P＜0.05); ADC value in the S1 group was significantly different from those in the S2, S3, and S4 groups (U=129.5, 16.5, and 70.0, respectively, all P＜0.05); the areas under the receiver operating characteristic curve for ADC value in quantitative evaluation of no liver fibrosis (S≥1) and moderate-to-severe liver fibrosis (S≥2) were 0.950 and 0.799, respectively, with sensitivities of 100% and 77.8% and specificities of 89.7% and 85.7%. Conclusion ADC has a certain clinical value in classification of liver fibrosis in chronic liver diseases. [ABSTRACT FROM AUTHOR]

Nonalcoholic fatty liver disease (NAFLD) is a clinicopathological syndrome characterized by fatty degeneration of hepatocytes due to nonalcoholic reasons. Liver cirrhosis and hepatocellular carcinoma are two important outcomes of NAFLD. Cell senescence is a relatively stable state in which cells deviate from the normal cell cycle and experience an irreversible loss of proliferative capacity, which is an objective law in cell life. Research shows that cell senescence is closely associated with the progression of liver fibrosis and the development and progression of hepatocellular carcinoma in NAFLD, and provides a new perspective for the prevention and treatment of liver fibrosis and hepatocellular carcinoma. [ABSTRACT FROM AUTHOR]

Objective To investigate the effects of homocysteinemia (HHcy) and hypertension on left ventricular remodeling. Methods A total of 275 patients with coronary heart disease were divided into four groups including H-type hypertension group (n=96), non-H-type hypertension group (n=44), HHcy+non-hypertension group (n=53) and control group (n=65) based on their blood pression levels and plasma HHcy levels. The serum levels of glucose (Glu), total cholesterol (TC), triglyceride (TG), low density lipoprotein (LDL) and high-density lipoprotein (HDL) were compared between groups. The left ventricular end systolic diameter (LVESD), left ventricular end diastolic diameter (LVEDD), left ventricular posterior wall thickness (LVPWT), ventricular septal thickness (IVST) and left ventricular mass index (LVMI) were observed in four groups. The proportion of patients with left ventricular remodeling was also compared between four groups. The influence factors of left ventricular remodeling were analysed. Results There were no significant differences in biochemical parameters except Hcy level between frour groups. The values of LVMI, left ventricular wall thickness and the proportion of patients with left ventricular remodeling were significantly higher in H-type hypertension group than those of other three groups (P＜ 0.05). The Hcy level was positively correlated with LVMI and left ventricular wall thickness. Logistic regression analysis showed that HHcy and hypertension were the risk factors of left ventricular remodeling (OR=7.443, 7.754 and 9.948，P＜ 0.05). The risk factors of left ventricular remodeling were higher in patients with both HHcy and hypertension than those in patients with HHcy or hypertension. Conclusion Homocysteine and higher systolic pressure are independent risk factors for left ventricular remodeling and they have a synergistic effect on leading to left ventricular remodeling. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Veterinary Science / Zhongguo Shouyi Xuebao is the property of Chinese Society of Veterinary Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Matrix metalloproteinases (MMPs) are zinc proteinases that degrade compounds of the extracellular matrix (ECM), which are inhibited by their natural inhibitors, tissue inhibitors of matrix metalloproteinases (TIMPs). MMPs involve in many processes of tissue remolding through degrade ECM. A successful pregnancy depends on trophoblastic invasion of endometrial and implant embryo into uterus, through invasive vascular endothelial to make the vascular remodeling and meet the placental blood supply. MMP-9 plays an important role in trophoblast invasion, placental vascular remodeling and delivery through playing protease function and degrading ECM. The imbalance between MMP-9 and its inhibitor TIMP-1 relates to many pathological pregnancy processes, such as spontaneous abortion, preterm labour, hypertensive disorder complicating pregnancy and gestational diabetes mellitus. This article summarizes the role of MMP-9 in normal pregnancy and pathologic pregnancy. The current knowledge in the field of identified ECM proteases will be contributive to the innovative therapeutic intervention in pathological pregnancy processes. [ABSTRACT FROM AUTHOR]

The current situation of large-scale apparatuses and equipment management in universities was analyzed in this paper. Many problems, such as imperfect management system, unclarity position of laboratory, low technology levels of technical team, limited construction condition and the unperfect performance measurement for large-scale apparatuses and equipment were existed. Some strategies of control were discussed in connection with these problems mentioned above, such as straightening out the administrative mechanism, purchasing and managing apparatuses and equipment comprehensively, establishing information database on apparatuses, training the skilled human force, and the methods to provide assurances and to open and sharing platform and established an evaluation system of apparatuses and managers. These suggestions may guarantee healthy operation of existing facilities, further push forward the construction of platform and increase the operation rate and degree of opening. [ABSTRACT FROM AUTHOR]

Copyright of Chinese Journal of Veterinary Science / Zhongguo Shouyi Xuebao is the property of Chinese Society of Veterinary Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Shandong Medical Journal is the property of Shandong Medical Health Newspapers and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Dalian Polytechnic University is the property of Journal of Dalian Polytechnic University Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Practical Oncology Journal is the property of Journal of Practical Oncology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)