1.Role of post-translational modification of basic leucine zipper transcription factors in response to abiotic stresses in plants.
Ying LI ; Weidi ZHAO ; Jinghua YANG ; Jiaqi LI ; Songyang HAN ; Yuekun REN ; Changhong GUO
Chinese Journal of Biotechnology 2024;40(1):53-62
Abiotic stresses substantially affect the growth and development of plants. Plants have evolved multiple strategies to cope with the environmental stresses, among which transcription factors play an important role in regulating the tolerance to abiotic stresses. Basic leucine zipper transcription factors (bZIP) are one of the largest gene families. The stability and activity of bZIP transcription factors could be regulated by different post-translational modifications (PTMs) in response to various intracellular or extracellular stresses. This paper introduces the structural feature and classification of bZIP transcription factors, followed by summarizing the PTMs of bZIP transcription factors, such as phosphorylation, ubiquitination and small ubiquitin-like modifier (SUMO) modification, in response to abiotic stresses. In addition, future perspectives were prospected, which may facilitate cultivating excellent stress-resistant crop varieties by regulating the PTMs of bZIP transcription factors.
Basic-Leucine Zipper Transcription Factors/genetics*
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Protein Processing, Post-Translational
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Phosphorylation
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Transcription Factors/genetics*
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Stress, Physiological/genetics*
2.Construction of nursing quality evaluation index system for pediatric orthopedics
Nan WANG ; Wei JIN ; Yanzhen HU ; Jie HUANG ; Dan ZHAO ; Juan XING ; Changhong LI ; Yanan HU ; Yi LIU ; Xuemei LU ; Zheng YANG
Chinese Journal of Practical Nursing 2024;40(9):655-664
Objective:To construct a representative index system for evaluating pediatric orthopedic nursing quality, providing a basis for hospital pediatric orthopedic nursing quality assessment and monitoring.Methods:From April to July 2023, using the "structure-process-outcome" three-dimensional quality structure model as the theoretical framework, a literature review was conducted, and an item pool was formulated. Through two rounds of Delphi method expert consultations, the hierarchical analysis method was finally employed to determine the indicators and their weights at each level.Results:The effective recovery rates of the questionnaire of the two rounds of expert consultations were 100% (20/20), the authority coefficients of experts were 0.87 and 0.88, the coefficients of variation were 0.00 to 0.27 and 0.00 to 0.24. The Kendell harmony coefficients of the second and third indicators in the two rounds of inquiry were 0.140, 0.166 and 0.192, 0.161(all P<0.05). The final pediatric orthopedic nursing quality evaluation index system included 3 primary indicators, 21 secondary indicators and 83 tertiary indicators. Among the primary indicators, the weight of process quality was the highest at 0.493 4, followed by outcome quality at 0.310 8, and the lowest was structural quality at 0.195 8. In the secondary indicators, "assessment criteria of limb blood circulation" had the highest weight at 0.099 8. Conclusions:The constructed pediatric orthopedic nursing quality evaluation index system covers key aspects and is more operationally feasible. It provides better guidance for nursing interventions and quality control.
3.Innovation and exploration of medical laboratory animal science teaching on the basis of a smart teaching environment
Zihao YANG ; Han MENG ; Zhaonan ZHANG ; Ping ZHANG ; Changhong SHI ; Xu GE
Chinese Journal of Comparative Medicine 2024;34(2):108-113
Objective In the traditional laboratory zoology lecture environment,there is less teacher-student interaction,less student interest,and less engagement in learning.To improve the teaching quality of laboratory animal science,this teaching and research department was based on different teaching environments of multimedia and intelligent classrooms,theoretical course teaching of Medical Laboratory Animal Science as the research object,the course lecture format,teaching mode,teaching method,and other aspects of innovation and exploration.Methods This study used questionnaires to understand changes in student engagement in learning and preferences for smart classroom use,and NVivo qualitative analysis software was used to code student classroom behavior.Results The smart teaching environment resulted in higher student interest and more frequent teacher-student interaction in the classroom.Students were significantly more engaged in learning than in traditional teaching with higher correct rates on in-class and post-lesson exercises and a better grasp of concepts related to laboratory animal science.Conclusions A smart teaching environment brings students a better feeling and experience,improves their interest in laboratory animal science,increases classroom learning engagement,and achieves good teaching result.
4.Research progress on mechanism of necrotizing apoptosis in pancreatic disease
Runze YANG ; Jing QIN ; Chenbo GUO ; Yaohua HU ; Zhandong WANG ; Yanying ZHANG ; Bing SONG ; Min BAI ; Changhong SHI ; Yongfeng WANG
Acta Laboratorium Animalis Scientia Sinica 2024;32(7):933-941
Necroptosis is a regulated process of programmed cell death independent of aspartic acid-specific cysteine protease,which can induce inflammation.Studies have shown that necroptosis is closely related to the progression and prognosis of pancreatic disease and plays an important two-way regulatory role in its progression.Related necroptosis inhibitors and inducers are expected to be used in the treatment of pancreatic disease.We herein review the mechanism of necroptosis and its role in the progression of pancreatic disease to provide a new understanding of the pathogenesis and treatment of pancreatic diseases and offer a theoretical basis for the research and development of targeted drugs.
5.Mechanism of HMGCR on liver bile acid and lipid metabolism in dairy cow with fatty liver
Changhong GAO ; Shuang WANG ; Yan TIAN ; Wenwen FAN ; Jie LI ; Wei YANG
Chinese Journal of Veterinary Science 2024;44(11):2452-2457
In order to investigate the mechanism of 3-hydroxy-3-methylglutaryl-CoA reductase(HMGCR)on liver bile acid(BAs)and lipid metabolism of dairy cows with fatty liver,A liver lip-id accumulation model was established by isolating primary calf hepatocytes and treating them with high concentration of non-esterified fatty acids(NEFA)in vitro.Then,HMGCR overex-pressed adenovirus(Ad-HMGCR)and overexpressed adenovirus control(Ad-GFP)were added.Hepatocyte triglyceride(TAG)was detected by the kit,lipid droplet changes were detected by lip-id droplet fluorescence,and BAs synthesis,fatty acid synthesis and oxidation factor changes were detected by real-time fluorescence quantitative PCR.The results showed that TAG content and lip-id droplet fluorescence were significantly reduced in Ad-HMGCR+NEFA group compared with Ad-GFP+NEFA group.Real-time fluorescence quantitative PCR results showed that CYP7A1,CYP8B1,CYP7B1 and CYP27A1 of hepatocyte BAs synthesis factors in Ad-HMGCR+NEFA group,BAs transporters ABCC2 and ABCB11 and fatty acid synthesis factors ACC1,FAS and SREBP1C were significantly lower than those in Ad-GFP+NEFA group.The levels of BAs syn-thesis factor FXR and lipid oxidation factor CPT1A in Ad-HMGCR+NEFA group were higher than those in Ad-GFP+NEFA group.The results showed that overexpression of HMGCR could significantly reduce BAs and lipid accumulation in the liver of dairy cows with fatty liver.
6.Prevalence and risk factors of diabetic kidney disease in plain-sand areasand loess hilly areas of Gansu province
Jianning YANG ; Doudou HONG ; Jinxing QUAN ; Limin TIAN ; Yunfang WANG ; Jing YU ; Zibing QIAN ; Panpan JIANG ; Changhong DONG ; Qian GUO ; Jing LIU ; Qi ZHANG
Chinese Journal of General Practitioners 2023;22(8):810-817
Objective:To investigate the risk factors of diabetic kidney disease (DKD) in type 2 diabetes mellitus (T2DM) patients in plain-sand areas and loess hilly areas of Gansu province.Methods:A total of 1 599 T2DM patients who participated in chronic disease and risk factors monitoring and basic public health service management were selected by multi-stage stratified random sampling method in the sandy plain areas and loess hilly areas of Gansu province. Questionnaire survey, physical measurement and laboratory tests were performed. Multivariate binary logistic model was used to analyze the influencing factors.Results:The prevalence of DKD was 22.1% (174/787) among T2DM patients in the sandy plain areas and 19.1%(155/812) in the loess hilly area, respectively. Hypertension ( OR=3.022), hyperuricemia ( OR=2.114) and HbA1c≥7%( OR=2.231) were the risk factors for DKD in the plain-sand areas, and the risk of DKD increased with age. In the loess hilly areas, female sex ( OR=0.379) was the protective factor for DKD; while duration of disease≥10 years ( OR=2.476), hyperuricemia ( OR=1.907), HbA1c≥7% ( OR=1.927) were the risk factors for DKD; and the risk of DKD increased with the increase of age, and decreased with the increase of per capita monthly income. Conclusions:The prevalence of DKD and its influencing factors are different between sandy plain areas and loess hilly areas in Gansu province. The prevention and treatment of hypertension should be given more attention in sandy plain areas. In addition, the screening of DKD should be conducted among T2DM patients, particularly for those with old age, hyperuricemia and HbA1c≥7% in both areas of the province.
7.Study on the effect of temperature on the risk of hand, foot and mouth disease in Chengdu
Mengyuan ZHANG ; Yao ZHANG ; Rongjie WEI ; Dianju KANG ; Yao QIN ; Lun ZHANG ; Changhong YANG ; Huadong ZHANG
Journal of Public Health and Preventive Medicine 2023;34(6):31-34
Objective To explore the effect of temperature on the risk of hand-foot-and-mouth disease (HFMD) and population susceptibility. Methods The data of HFMD cases in Chengdu from January 1, 2016 to October 31, 2022 were collected, and local meteorological data during the same period were also collected. Distributional lag nonlinear models were developed. The relative risk (RR) of morbidity at different temperatures and different lags was calculated. Differences in the relative risk levels of different populations were analyzed and compared. Results A total of 263 776 cases of HFDM were reported in Chengdu during the study period. The distribution of HFMD was periodic. For the overall population, the short-term average temperature and RR showed a “U”-shaped relationship. When the lag time was 0-7 days, the cumulative RR was 1.59 (95%CI: 1.18-2.14) at the average temperature of -0.5℃ and 2.16 (95%CI: 1.60-2.91) at the average temperature of 34.5℃. The RR values under high and low temperatures decreased with increasing lag period. When the lag time was extended, the average temperature and RR showed an inverted “U”-shaped relationship, with higher RR at moderate temperatures and increasing as the lag period increased. The results of the subgroups showed that the RR of onset among scattered children was higher at high and low temperatures. Conclusion The risk effect of temperature on the onset of HFMD in different populations is variable and changes with the lag period, and the prevention and control measures should be adjusted in a timely and targeted manner.
8.Isotoosendanin exerts inhibition on triple-negative breast cancer through abrogating TGF-β-induced epithelial-mesenchymal transition via directly targeting TGFβR1.
Jingnan ZHANG ; Ze ZHANG ; Zhenlin HUANG ; Manlin LI ; Fan YANG ; Zeqi WU ; Qian GUO ; Xiyu MEI ; Bin LU ; Changhong WANG ; Zhengtao WANG ; Lili JI
Acta Pharmaceutica Sinica B 2023;13(7):2990-3007
As the most aggressive breast cancer, triple-negative breast cancer (TNBC) is still incurable and very prone to metastasis. The transform growth factor β (TGF-β)-induced epithelial-mesenchymal transition (EMT) is crucially involved in the growth and metastasis of TNBC. This study reported that a natural compound isotoosendanin (ITSN) reduced TNBC metastasis by inhibiting TGF-β-induced EMT and the formation of invadopodia. ITSN can directly interact with TGF-β receptor type-1 (TGFβR1) and abrogated the kinase activity of TGFβR1, thereby blocking the TGF-β-initiated downstream signaling pathway. Moreover, the ITSN-provided inhibition on metastasis obviously disappeared in TGFβR1-overexpressed TNBC cells in vitro as well as in mice bearing TNBC cells overexpressed TGFβR1. Furthermore, Lys232 and Asp351 residues in the kinase domain of TGFβR1 were found to be crucial for the interaction of ITSN with TGFβR1. Additionally, ITSN also improved the inhibitory efficacy of programmed cell death 1 ligand 1 (PD-L1) antibody for TNBC in vivo via inhibiting the TGF-β-mediated EMT in the tumor microenvironment. Our findings not only highlight the key role of TGFβR1 in TNBC metastasis, but also provide a leading compound targeting TGFβR1 for the treatment of TNBC metastasis. Moreover, this study also points out a potential strategy for TNBC treatment by using the combined application of anti-PD-L1 with a TGFβR1 inhibitor.
9.Aripiprazole in the treatment of acute episode of schizophrenia: a real-world study in China.
Qian LI ; Yun'ai SU ; Xuemei LIAO ; Maosheng FANG ; Jianliang GAO ; Jia XU ; Mingjun DUAN ; Haiying YU ; Yang YANG ; Zhiyu CHEN ; Jintong LIU ; Shaoxiao YAN ; Peifen YAO ; Shuying LI ; Changhong WANG ; Bin WU ; Congpei ZHANG ; Tianmei SI
Chinese Medical Journal 2023;136(9):1126-1128
10.Application effect evaluation of mind mapping in experimental teaching of complete denture for undergraduates of stomatological technology
Nannan HUANG ; Yuzhou LI ; Changhong HU ; Sheng YANG ; Ling XU
Chinese Journal of Medical Education Research 2021;20(6):636-640
Objective:To explore the application effect of mind mapping in the experimental teaching of complete denture for the undergraduates of stomatological technology.Methods:In this study, the undergraduates of stomatological technology in Chongqing Medical University were divided into three groups. They were taught with traditional experimental teaching of complete denture, mind mapping teaching and modified mind mapping teaching respectively. The students' mastery degree were evaluated by experiment examination, theoretical examination and comprehensive examination (a weight to experiment and theoretical examination). SPSS 22.0 was used for statistical analysis.Results:The results of one-way ANOVA showed that there were significant differences in experimental examination ( F=99.471, P<0.001) and comprehensive examination ( F=22.909, P<0.001). Dunnett T3 analysis found that the comprehensive examination score of mind mapping group and modified mind mapping group were significantly improved than that of the traditional experimental group ( P<0.001). Conclusion:For the undergraduates who lack of clinical experience, mind mapping can effectively improve students' understanding and mastery of relevant knowledge in complete denture making.


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