1.Evolution-guided design of mini-protein for high-contrast in vivo imaging.
Nongyu HUANG ; Yang CAO ; Guangjun XIONG ; Suwen CHEN ; Juan CHENG ; Yifan ZHOU ; Chengxin ZHANG ; Xiaoqiong WEI ; Wenling WU ; Yawen HU ; Pei ZHOU ; Guolin LI ; Fulei ZHAO ; Fanlian ZENG ; Xiaoyan WANG ; Jiadong YU ; Chengcheng YUE ; Xinai CUI ; Kaijun CUI ; Huawei CAI ; Yuquan WEI ; Yang ZHANG ; Jiong LI
Acta Pharmaceutica Sinica B 2025;15(10):5327-5345
Traditional development of small protein scaffolds has relied on display technologies and mutation-based engineering, which limit sequence and functional diversity, thereby constraining their therapeutic and application potential. Protein design tools have significantly advanced the creation of novel protein sequences, structures, and functions. However, further improvements in design strategies are still needed to more efficiently optimize the functional performance of protein-based drugs and enhance their druggability. Here, we extended an evolution-based design protocol to create a novel minibinder, BindHer, against the human epidermal growth factor receptor 2 (HER2). It not only exhibits super stability and binding selectivity but also demonstrates remarkable properties in tissue specificity. Radiolabeling experiments with 99mTc, 68Ga, and 18F revealed that BindHer efficiently targets tumors in HER2-positive breast cancer mouse models, with minimal nonspecific liver absorption, outperforming scaffolds designed through traditional engineering. These findings highlight a new rational approach to automated protein design, offering significant potential for large-scale applications in therapeutic mini-protein development.
2.Identification of banana ADA1 gene family members and their expression profiles under biotic and abiotic stresses.
Qiqi ZHAO ; Wenhui REN ; Huifei ZHU ; Qiuzhen WU ; Chunyu ZHANG ; Xiaoqiong XU ; Binbin LUO ; Yuji HUANG ; Yukun CHEN ; Yuling LIN ; Zhongxiong LAI
Chinese Journal of Biotechnology 2024;40(1):190-210
The Spt-Ada-Gcn5-acetyltransferase (SAGA) is an ancillary transcription initiation complex which is highly conserved. The ADA1 (alteration/deficiency in activation 1, also called histone H2A functional interactor 1, HFI1) is a subunit in the core module of the SAGA protein complex. ADA1 plays an important role in plant growth and development as well as stress resistance. In this paper, we performed genome-wide identification of banana ADA1 gene family members based on banana genomic data, and analyzed the basic physicochemical properties, evolutionary relationships, selection pressure, promoter cis-acting elements, and its expression profiles under biotic and abiotic stresses. The results showed that there were 10, 6, and 7 family members in Musa acuminata, Musa balbisiana and Musa itinerans. The members were all unstable and hydrophilic proteins, and only contained the conservative SAGA-Tad1 domain. Both MaADA1 and MbADA1 have interactive relationship with Sgf11 (SAGA-associated factor 11) of core module in SAGA. Phylogenetic analysis revealed that banana ADA1 gene family members could be divided into 3 classes. The evolution of ADA1 gene family members was mostly influenced by purifying selection. There were large differences among the gene structure of banana ADA1 gene family members. ADA1 gene family members contained plenty of hormonal elements. MaADA1-1 may play a prominent role in the resistance of banana to cold stress, while MaADA1 may respond to the Panama disease of banana. In conclusion, this study suggested ADA1 gene family members are highly conserved in banana, and may respond to biotic and abiotic stress.
Musa/genetics*
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Phylogeny
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Fungal Proteins
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Cell Nucleus
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Histones
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Stress, Physiological/genetics*
3.Overview of the application of knowledge graphs in the medical field.
Caiyun WANG ; Zengliang ZHENG ; Xiaoqiong CAI ; Jihan HUANG ; Qianmin SU
Journal of Biomedical Engineering 2023;40(5):1040-1044
With the booming development of medical information technology and computer science, the medical services industry is gradually transiting from information technology to intelligence. The medical knowledge graph plays an important role in intelligent medical applications such as knowledge questions and answers and intelligent diagnosis, and is a key technology for promoting wise medical care and the basis for intelligent management of medical information. In order to fully exploit the great potential of knowledge graphs in the medical field, this paper focuses on five aspects: inter-drug relationship discovery, assisted diagnosis, personalized recommendation, decision support and intelligent prediction. The latest research progress on medical knowledge graphs is introduced, and relevant suggestions are made in light of the current challenges and problems faced by medical knowledge graphs to provide reference for promoting the wide application of medical knowledge graphs.
Pattern Recognition, Automated
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Medical Informatics
4.Myelodysplastic syndrome:an analysis of the genetic risk factors and prognosis of 190 patients
Lingle HUANG ; Xinyu YAN ; Lanxiang LIU ; Zesong YANG ; Xin WANG ; Xiaohua LUO ; Hongbin ZHANG ; Xiaoqiong TANG ; Qing XIAO ; Lin LIU ; Li WANG
Tumor 2023;43(2):83-96
Objective:To investigate the genetic risk factors and prognosis of 190 patients with myelodysplastic syndrome(MDS). Methods:The clinical data of 190 patients with MDS admitted to the Department of Hematology,The First Affiliated Hospital of Chongqing Medical University from January 2015 to October 2020 were analyzed retrospectively,and the genetic background and survival curve of the patients were also analyzed. Results:MDS patients with higher risk according to International Prognostic Score System(IPSS)stratification at the time of initial diagnosis had more frequent and complex types of gene mutation and chromosomal abnormalities,indicating poor prognosis.The choice of treatment is associated with the prognosis of MDS patients with intermediate risk(IPSS stratification),and the relative risk of the overall survival rate of patients treated with hypomethylating agents is higher than that of patients on concomitant medication. Conclusion:MDS patients with higher-risk(IPSS stratification)have more complex genetic risk factors and lower survival rate than those with lower-risk(IPSS stratification).MDS patients with multiple genetic risk factors have a poor prognosis,and the type of gene mutation is a predictor of prognosis.
5.Investigation on cleaning of silicone oil attached ophthalmic surgical instruments in 22 provinces (regions,municipality) in China
Yuan TANG ; Xiaoqiong HUANG ; Qiqi ZHANG ; Ru CHEN ; Siwen MA ; Peihua ZHANG ; Yanyan CHEN
Chinese Journal of Practical Nursing 2021;37(26):2041-2046
Objective:To investigate the cleaning status of silicone oil attached ophthalmic surgical instruments in China, so as to provide reference and suggestions for the standard cleaning process of silicone oil attached ophthalmic surgical instruments.Methods:61 hospitals in 22 provinces (regions, municipality) in China were selected as the objects of investigation. The on-site treatment, pretreatment and routine cleaning of silicone oil attached ophthalmic surgical instruments were investigated by questionnaire from November 2019 to January 2020.Results:18.033% (11/61) hospitals had mixed silicone oil attached ophthalmic surgical instruments and other instruments intraoperatively, 11.475% (7/61) hospitals didn′t wipe silicone oil and other visible contaminants postoperatively. 18.033% (11/61) hospitals didn′t carry out pretreatment and 4.000% (2/50) hospitals used saline as pretreatment solution; 54.098% (33/61) hospitals were involved in ultrasonic cleaning. 32.787% (20/61) hospitals had water temperature 31-37 ℃ and 4.918% (3/61) hospitals had water temperature>37 ℃during the cleaning process; During pretreatment and routine cleaning, 38.000% (19/50) hospitals and 54.902% (28/51) hospitals selected enzymatic detergent respectively, the contact time between instruments and detergent in specialized hospital was more standardized than that in general hospital ( P<0.001); In flushing, rinsing and final rinsing, there were 29.412% (15/51) hospitals, 11.765% (6/51) hospitals and 3.922% (2/51) hospitals used water that didn′t meet the requirements. 17.647% (9/51) hospitals, 13.725% (7/51) hospitals and 13.725% (7/51) hospitals didn′t record the time of flushing, rinsing and final rinsing. Conclusions:There are still some problems in the cleaning of silicone oil attached ophthalmic surgical instruments in specialized and general hospitals, such as no on-site treatment and pretreatment, improper control of cleaning parameters, and difficulty in ensuring water quality and water time. It is necessary to formulate the cleaning process specification of silicone oil attached ophthalmic surgical instruments as soon as possible to ensure the cleaning quality and avoid the occurrence of postoperative eye complications.
6.Effects of specialized games combined with bi-cardiac nursing on postoperative complications and caregivers ′ emotions in children with hypospadias
Rong HUANG ; Yumei LI ; Xiaoqiong WAN ; Ruiqing SONG
Chinese Journal of Practical Nursing 2020;36(15):1162-1166
Objective:To explore the effect of specialized games combined with bi-cardiac nursing on postoperative complications and caregivers′ emotions in children with hypospadias.Methods:A total of 100 children with hypospadias treated in our hospital from January 2018 to December 2018 were randomly divided into control group and experimental group, 50 cases in each group. The control group was given routine treatment and nursing. The experimental group was given specialized games combined with bi-cardiac nursing intervention. The incidence of complications after operation was compared between the two groups. Self-rating Anxiety Scale (SAS) and Self-rating Depression Scale (SDS) were used to test the main caregivers of the two groups before and after the intervention for 3 months respectively. At the same time, their satisfaction was compared after the intervention.Results:The incidence of complications was 10.00% (5/50) in the study group and 28.00% (14/50) in the control group, the difference between the two groups was statistically significant ( χ2 value was 5.263, P=0.022); after intervention, the scores of SAS and SDS of the caregivers in the study group were 23.35 ± 7.33, 37.06 ± 8.22 respectively, and those in the control group were 32.22 ± 6.70, 40.94 ± 8.95, the difference between the two groups was statistically significant ( t values were 6.316, 2.258, all P<0.05); after the intervention, the satisfaction of the study group was 96.00%(48/50), and that of the control group was 84.00%(42/50). The difference between the two groups was statistically significant ( χ2 value was 4.000, P=0.046). Conclusions:Specialized games combined with bi-centric nursing can reduce the incidence of complications after urethroplasty in children with hypospadias, alleviate the bad mood of the main caregivers and improve nursing satisfaction.
7. Aerosol formation during non-contact "air-puff" tonometry and its significance for prevention of COVID-19
Chunchun LI ; Yuan TANG ; Zhangyan CHEN ; Aisun WANG ; Xiaoqiong HUANG ; Yanyan CHEN ; Jia QU
Chinese Journal of Experimental Ophthalmology 2020;38(0):E010-E010
Objective:
To evaluate the aerosol concentration(PM2.5,PM10.0 and aerosol particle number) formation in non-contact "air-puff" tonometry and provide suggestions for medical workers to take appropriate daily protection during the prevalence of 2019-nCoV.
Methods:
A cross-sectional study was carried out in this study. Thirty healthy subjects were enrolled on February 22, 2020 at Eye Hospital of Wenzhou Medical University. The intraocular pressure (IOP) was measured by non-contact "air-puff" tonometer in the ophthalmic consulting room and the hall with or without masks. PM2.5, PM10.0 and aerosol particles were recorded by air quality detector. The cumulative effects of IOP measurement, PM2.5, PM10.0 and aerosol particle number were analyzed, and the aerosol density of subjects with and without masks was compared.
Results:
The PM2.5, PM10.0 and aerosol particles produced by the non-contact "air-puff" tonometry and increased with the increase of spray times. The IOP curves of 60 eyes of 30 subjects were measured respectively in two environments of medical consulting room and medical institution hall. It was found that PM2.5, pm10.0 and particle number fluctuated and increased with the increase of IOP measurement person times, showing cumulative effect, and the accumulation speed of aerosol density in hall was faster than that in consulting room. The density of PM2.5 and PM10.0 produced without gauze mask were (53.417±2.306) and (85.350± 3.488) μg/m3, which were higher than those of (50.567±0.862) and (80.617±1.463) μg/m3 with gauze mask. The differences were statistically significant (
8.Analysis of the current situation and influencing factors of regular spot check for CSSD cleaning quality
Senguo ZHENG ; Lei QIN ; Wenzhe ZHOU ; Xiao CHANG ; Xiaoqiong HUANG ; Peihua ZHANG ; Yanyan CHEN
Chinese Journal of Hospital Administration 2018;34(4):315-318
Objective To investigate the regular spot check implementation of central sterile supply department(CSSD) at hospitals of all grades across China and analyze its influencing factors to provide the basis for further improvement of regular cleaning quality inspection. Methods Cross-sectional study was conducted form February to July of 2017,and 132 hospitals all over the country were selected to investigate with the questionnaire the current status of CSSD management model, staffing and regular cleaning quality inspection. Results The ratio of the nursing staff and the number of beds was 1.15:100,the ratio of staff and the number of beds was 2. 00:100. 81. 82% (n =108) of the hospitals adopted the centralized management model. The qualification rate for regular spot check execution was 87.12% (n=115). The results of multiple logistic regression showed that the centralized management model was more conducive to the regular spot check than the non-centralized management model (OR=4.71,95% CI:1.05-21.08). Conclusions The centralized management model proves positive for the implementation of regular spot checks;and CSSDs should pay more attention to the regular spot check of the cleaning quality.
9.The Changes and clinical significance of platelet parameters in children with dengue fever
Xiaoyun LIANG ; Daowen WANG ; Pengcheng XIE ; Lanlan ZENG ; Zhenhua HUANG ; Meigan HUANG ; Xiaoqiong GU
International Journal of Laboratory Medicine 2018;39(5):562-565
Objective To investigate the variation characteristics of peripheral platelet parameters in children with dengue fever and to assess their use and value in diagnosis,prognosis and treatment for dengue fever.Methods Platelet parameters of 69 pediatric patients with dengue fever in acute febrile phase and remission period and 103 healthy controls were compared.The difference of platelet parameters between the liver function injury group and the normal liver function group,the coagulation dysfunction group and the coagulation function normal group,the severe group and the mild group with dengue fever was compared,the causes of thrombocytopenia in children with dengue was investigated so as to better understand the situation of bone marrow producing platelets.Results P-LCR,PDW,MPV were significantly higher in patients in acute febrile phase of dengue fever,compared with the healthy subjects(P<0.01),while PCT,PLT were significantly lower in patients in acute febrile phase of dengue fever,compared with the healthy subjects(P<0.01).MPV was significantly lower in patients with abnormal hepatic function when compared with patients with normal hepatic function(P<0.05),while other platelet parameters did not show significant differences(P>0.05).PLT and PCT were significantly lower in the severe patients than those in the mild patients(P<0.05),while other platelet parameters did not show significant differences(P>0.05).Peripheral platelet parameters did not show significant differences between patients with or without abnormal coagulation function (P>0.05).Conclusion Peripheral platelet parameters may play a role in the diagnosis,treatment and prognosis of dengue fever in children.
10.Application of videos in health education to patients with spinal surgery
Lijun DENG ; Xiaoxia LI ; Ping XIAO ; Xiaoqiong PENG ; Tianwen HUANG ; Jianru WANG
Modern Clinical Nursing 2017;16(9):47-50
Objective To explore the effect of videos on health education to the spinal surgery patients during perioperative period. Methods About 99 patients with lumbar, cervical vertebra disease were randomized into two groups with random digit number:50 in the experimental group and 49 in the control group. Videos was used in the health education combined with routine health education model of perioperative health education in the former group and the health education was done in regular way in the control group. The two groups were compared in terms of hospital nursing service awareness, rehabilitation knowledge awareness, accuracy in perioperative nursing skill. Result The rate of knowledge about hospitalization nursing and the accuracy of rehabilitation nursing skills were significantly higher than those in the control group (P<0.05). Conclusions Video-assisted health education has changed the traditional way for health education, It is helpful for nurses to better implement health education program. It is beneficial for patients to strengthen memory. It can improve the perioperative knowledge and the accuracy in rehabilitation nursing skills.

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