1.Microbial Culture Results and Pathogen Profiles of Donor Corneas in Eye Bank
Jianping JI ; Huicong HU ; Zhancong OU ; Rongrong CHEN ; Jiabi LIANG ; Nandan WU ; Xiaojuan DONG ; Ting HUANG
Journal of Sun Yat-sen University(Medical Sciences) 2026;47(5):886-898
ObjectiveTo analyze the microbial culture positivity rate, pathogen spectrum, prevalence of multidrug-resistant organisms (MDROs), and differences among donor procurement sources in corneas from the Eye Bank of Guangdong Province, and to provide evidence for eye bank quality control and the prevention of post-keratoplasty infections. MethodsThis retrospective study included 7 442 donor corneas procured by the Eye Bank of Guangdong Province and used for keratoplasty at Zhongshan Ophthalmic Center, Sun Yat-sen University, between 2018 and 2025. During surgery, donor corneoscleral rim tissue was excised for bacterial and fungal culture. Culture-positive specimens underwent microbial identification and antimicrobial susceptibility testing (AST). Culture-positive corneas were compared across study years, pathogen categories, and donor procurement sources. ResultsOf the 7 442 donor corneas, 251 were culture-positive, corresponding to an overall culture positivity rate of 3.37%, with annual rates ranging from 1.50% to 5.31%. Among culture-positive corneas, 178 (70.92%) yielded bacteria alone, 72 (28.68%) yielded fungi alone, and 1 (0.40%) yielded both bacteria and fungi. Candida spp. and Aspergillus spp. were the predominant fungal isolates. Gram-negative bacteria were more frequently isolated than Gram-positive bacteria. The most common bacterial isolates were Acinetobacter baumannii, Staphylococcus epidermidis, Stenotrophomonas maltophilia, Enterococcus faecium, and Pseudomonas fluorescens. MDROs accounted for 75.47% of bacterial isolates, predominantly Acinetobacter baumannii, Staphylococcus epidermidis, and Enterococcus faecium, and demonstrated an increasing trend over the study period. Donor corneas procured through the Hospital Cornea Retrieval Program (HCRP) had a higher culture positivity rate than those obtained through Organ Procurement Organization (OPO) (P<0.000 1). Among culture-positive donor corneas, the proportion of fungal culture-positive corneas was significantly higher in the HCRP group than in the OPO group (P=0.001 5), whereas the proportion of MDROs among bacterial culture-positive corneas was significantly higher in the OPO group than that in the HCRP group (P=0.005 2). ConclusionsThe overall culture positivity rate of donor corneas from the Eye Bank of Guangdong Province is relatively low, indicating that the risk of microbial contamination is controlled. However, pathogen profiles and antimicrobial resistance patterns varies by procurement source. Ongoing microbiological and antimicrobial resistance surveillance, together with optimized donor risk assessment and timely reporting of culture results, may further improve eye bank quality management and help inform strategies for preventing post-keratoplasty infections.
2.Microbial Culture Results and Pathogen Profiles of Donor Corneas in Eye Bank
Jianping JI ; Huicong HU ; Zhancong OU ; Rongrong CHEN ; Jiabi LIANG ; Nandan WU ; Xiaojuan DONG ; Ting HUANG
Journal of Sun Yat-sen University(Medical Sciences) 2026;47(5):886-898
ObjectiveTo analyze the microbial culture positivity rate, pathogen spectrum, prevalence of multidrug-resistant organisms (MDROs), and differences among donor procurement sources in corneas from the Eye Bank of Guangdong Province, and to provide evidence for eye bank quality control and the prevention of post-keratoplasty infections. MethodsThis retrospective study included 7 442 donor corneas procured by the Eye Bank of Guangdong Province and used for keratoplasty at Zhongshan Ophthalmic Center, Sun Yat-sen University, between 2018 and 2025. During surgery, donor corneoscleral rim tissue was excised for bacterial and fungal culture. Culture-positive specimens underwent microbial identification and antimicrobial susceptibility testing (AST). Culture-positive corneas were compared across study years, pathogen categories, and donor procurement sources. ResultsOf the 7 442 donor corneas, 251 were culture-positive, corresponding to an overall culture positivity rate of 3.37%, with annual rates ranging from 1.50% to 5.31%. Among culture-positive corneas, 178 (70.92%) yielded bacteria alone, 72 (28.68%) yielded fungi alone, and 1 (0.40%) yielded both bacteria and fungi. Candida spp. and Aspergillus spp. were the predominant fungal isolates. Gram-negative bacteria were more frequently isolated than Gram-positive bacteria. The most common bacterial isolates were Acinetobacter baumannii, Staphylococcus epidermidis, Stenotrophomonas maltophilia, Enterococcus faecium, and Pseudomonas fluorescens. MDROs accounted for 75.47% of bacterial isolates, predominantly Acinetobacter baumannii, Staphylococcus epidermidis, and Enterococcus faecium, and demonstrated an increasing trend over the study period. Donor corneas procured through the Hospital Cornea Retrieval Program (HCRP) had a higher culture positivity rate than those obtained through Organ Procurement Organization (OPO) (P<0.000 1). Among culture-positive donor corneas, the proportion of fungal culture-positive corneas was significantly higher in the HCRP group than in the OPO group (P=0.001 5), whereas the proportion of MDROs among bacterial culture-positive corneas was significantly higher in the OPO group than that in the HCRP group (P=0.005 2). ConclusionsThe overall culture positivity rate of donor corneas from the Eye Bank of Guangdong Province is relatively low, indicating that the risk of microbial contamination is controlled. However, pathogen profiles and antimicrobial resistance patterns varies by procurement source. Ongoing microbiological and antimicrobial resistance surveillance, together with optimized donor risk assessment and timely reporting of culture results, may further improve eye bank quality management and help inform strategies for preventing post-keratoplasty infections.
3.Research progress on the application of artificial intelligence in controlled ovarian stimulation
Chinese Journal of Reproduction and Contraception 2025;45(1):14-18
In recent years, artificial intelligence (AI) technology has seen widespread application in the field of healthcare, particularly revolutionizing disease diagnosis and treatment decisions. Assisted reproductive technology (ART), a crucial method for treating infertility, has also benefited from the integration of AI, especially in the intelligent development of its core process--controlled ovarian stimulation (COS). Traditional COS protocols heavily relied on the experience and subjective judgment of physicians, leading to uncertainties. However, AI technology leverages deep learning to analyze multi-dimensional data, including patients' demographic characteristics, reproductive endocrine levels, and ultrasound monitoring results, to provide precise, personalized optimization and dynamic adjustments for COS. Specifically, AI models can accurately calculate the initial COS dosage, intelligently monitor follicular development, and predict the optimal timing for ovulation triggering in real-time, significantly enhancing diagnostic and treatment efficiency, reducing the workload of physicians, and offering more individualized and precise treatment plans for patients. This article reviews the latest research progress in AI applications for individualized optimization of initial gonadotropin dosage during COS, intelligent follicular monitoring, assessment of ovarian responsiveness, and prediction of the optimal timing for ovulation triggering, aiming to provide valuable insights for the clinical practice of AI in assisted reproductive hyperstimulation.
4.Role of copper transporter 1 in regulating cuproptosis and its potential value in tumor therapy
Yixian WANG ; Chongyang OU ; Lu HAO ; Yang JIAO ; Jianping CAO
Academic Journal of Naval Medical University 2025;46(8):1055-1061
As a new manner of cell death,cuproptosis depends on the accumulation of copper ions in cells.Copper ion is an essential trace element in normal physiological state of organisms.The excess of free copper in cells not only has toxic effect on normal cells,but also plays its specific killing function on tumor cells.Copper transporter 1(CTR1)is a key transporter of transmembrane uptake of copper ions by cells.As a regulator of cuproptosis,its mutation and expression changes in tumors have an impact on the distribution of copper ions inside and outside the cells.It may participate in multiple biological processes such as proliferation,invasion and migration of tumor cells by regulating the pathway of cuproptosis.This article reviews the cuproptosis pathway mediated by CTR1 and the potential value of CTR1 in tumor treatment,elaborates the importance of copper ion homeostasis regulation for normal life activities and the mechanism of CTR1 in regulating cuproptosis,and discusses the potential value of CTR1 as a new target for tumor therapy,so as to provide a theoretical basis for the treatment of tumor patients.
5.Research progress on the application of artificial intelligence in controlled ovarian stimulation
Chinese Journal of Reproduction and Contraception 2025;45(1):14-18
In recent years, artificial intelligence (AI) technology has seen widespread application in the field of healthcare, particularly revolutionizing disease diagnosis and treatment decisions. Assisted reproductive technology (ART), a crucial method for treating infertility, has also benefited from the integration of AI, especially in the intelligent development of its core process--controlled ovarian stimulation (COS). Traditional COS protocols heavily relied on the experience and subjective judgment of physicians, leading to uncertainties. However, AI technology leverages deep learning to analyze multi-dimensional data, including patients' demographic characteristics, reproductive endocrine levels, and ultrasound monitoring results, to provide precise, personalized optimization and dynamic adjustments for COS. Specifically, AI models can accurately calculate the initial COS dosage, intelligently monitor follicular development, and predict the optimal timing for ovulation triggering in real-time, significantly enhancing diagnostic and treatment efficiency, reducing the workload of physicians, and offering more individualized and precise treatment plans for patients. This article reviews the latest research progress in AI applications for individualized optimization of initial gonadotropin dosage during COS, intelligent follicular monitoring, assessment of ovarian responsiveness, and prediction of the optimal timing for ovulation triggering, aiming to provide valuable insights for the clinical practice of AI in assisted reproductive hyperstimulation.
6.Correlation between lacune of presumed vascular origin and spontaneous hemorrhagic transformation in elderly patients with AIS
Ru OU ; Jianping LIU ; Yimin LIU ; Zhijian XU ; Yan QIN
Chinese Journal of Geriatric Heart Brain and Vessel Diseases 2025;27(6):788-792
Objective To explore the relationship between lacune of presumed vascular origin and spontaneous HT in elderly patients with AIS.Methods A total of 671 AIS patients hospitalized in our hospital from January 2021 to September 2024 were prospectively recruited.According to the conditions of lacune of presumed vascular origin by the first cranial MRI examination after admis-sion,they were divided into 330 cases with lacune of presumed vascular origin and 341 cases with-out,and based on the re-examination of head CT or MRI during hospitalization,they were also as-signed into a HT group(139 cases)and a non-HT group(532 cases).Multivariate logistic regres-sion analysis was conducted to clarify the correlation between lacune of presumed vascular origin and spontaneous HT in the elderly AIS patients.The incidence of spontaneous HT and the differ-ences in the subtype composition of spontaneous HT were compared between the mild and severe groups of lacune of presumed vascular origin.Results Baseline NIHSS score,atrial fibrillation,white matter lesions,enlarged perivascular spaces,cerebral microbleeds,large-area cerebral infarc-tion,and ratio of lacune of presumed vascular origin were significantly higher in the HT group than the non-HT group[(10(6,13)vs 9(5,12),P=0.000;28.1%vs 18.0%,P=0.009;74.8%vs 56.0%,P=0.000;79.9%vs 57.5%,P=0.000;30.2%vs 16.9%,P=0.000;45.3%vs 13.2%,P=0.000;66.2%vs 44.7%,P=0.000].The incidence of spontaneous HT was significantly high-er in the lacune of presumed vascular origin group than the non-lacune of presumed vascular ori-gin group(27.9%vs 13.8%,P=0.000).Multivariate logistic regression analysis indicated that lacune of presumed vascular origin was an independent risk factor for spontaneous HT after AIS(OR=2.207,95%CI:1.231-3.959).Subtype analysis on spontaneous HT showed that the patients with lacune of presumed vascular origin had the largest proportion among all subtypes than the non-lacune of presumed vascular origin patients.The incidence of spontaneous HT was significantly higher in the severe lacune of presumed vascular origin group than the mild group(38.1%vs 20.9%,P=0.001).HI2 subtype was mainly observed in the severe group with sponta-neous HT,and HI1 subtype was in the mild group with spontaneous HT.Conclusion Lacune of presumed vascular origin is an independent risk factor for spontaneous HT after AIS in elderly patients.The patients with severe lacune of presumed vascular origin are prone to the occurrence and severe spontaneous HT than the mild lacunar patients.
7.Correlation between lacune of presumed vascular origin and spontaneous hemorrhagic transformation in elderly patients with AIS
Ru OU ; Jianping LIU ; Yimin LIU ; Zhijian XU ; Yan QIN
Chinese Journal of Geriatric Heart Brain and Vessel Diseases 2025;27(6):788-792
Objective To explore the relationship between lacune of presumed vascular origin and spontaneous HT in elderly patients with AIS.Methods A total of 671 AIS patients hospitalized in our hospital from January 2021 to September 2024 were prospectively recruited.According to the conditions of lacune of presumed vascular origin by the first cranial MRI examination after admis-sion,they were divided into 330 cases with lacune of presumed vascular origin and 341 cases with-out,and based on the re-examination of head CT or MRI during hospitalization,they were also as-signed into a HT group(139 cases)and a non-HT group(532 cases).Multivariate logistic regres-sion analysis was conducted to clarify the correlation between lacune of presumed vascular origin and spontaneous HT in the elderly AIS patients.The incidence of spontaneous HT and the differ-ences in the subtype composition of spontaneous HT were compared between the mild and severe groups of lacune of presumed vascular origin.Results Baseline NIHSS score,atrial fibrillation,white matter lesions,enlarged perivascular spaces,cerebral microbleeds,large-area cerebral infarc-tion,and ratio of lacune of presumed vascular origin were significantly higher in the HT group than the non-HT group[(10(6,13)vs 9(5,12),P=0.000;28.1%vs 18.0%,P=0.009;74.8%vs 56.0%,P=0.000;79.9%vs 57.5%,P=0.000;30.2%vs 16.9%,P=0.000;45.3%vs 13.2%,P=0.000;66.2%vs 44.7%,P=0.000].The incidence of spontaneous HT was significantly high-er in the lacune of presumed vascular origin group than the non-lacune of presumed vascular ori-gin group(27.9%vs 13.8%,P=0.000).Multivariate logistic regression analysis indicated that lacune of presumed vascular origin was an independent risk factor for spontaneous HT after AIS(OR=2.207,95%CI:1.231-3.959).Subtype analysis on spontaneous HT showed that the patients with lacune of presumed vascular origin had the largest proportion among all subtypes than the non-lacune of presumed vascular origin patients.The incidence of spontaneous HT was significantly higher in the severe lacune of presumed vascular origin group than the mild group(38.1%vs 20.9%,P=0.001).HI2 subtype was mainly observed in the severe group with sponta-neous HT,and HI1 subtype was in the mild group with spontaneous HT.Conclusion Lacune of presumed vascular origin is an independent risk factor for spontaneous HT after AIS in elderly patients.The patients with severe lacune of presumed vascular origin are prone to the occurrence and severe spontaneous HT than the mild lacunar patients.
8.Strategies for enhancing the influence of major themed publicity in hospital Party building
Weiyin LIN ; Rui HUANG ; Wenqin LIU ; Yang ZHANG ; Yangxia OU ; Jianping LI ; Haiyan CHEN
Modern Hospital 2024;24(8):1168-1170,1174
This research aimed to explore strategies to enhance the influence of major themed publicity in hospital party building within several prominent tertiary public hospitals in China,including one in Beijing,one in Zhejiang and four in Guang-dong.An analysis of themed publicity initiatives over the past five years,particularly during pivotal party events and key thematic activities,was undertaken.This assessment included both offline events and the online media coverage through various integrated media platforms.The study aimed to offer development suggestions for hospitals to amplify the influence of their major themed publicity strategies for Party building.Currently,hospitals are placing increased emphasis on the strategic planning of major themed publicity for Party building.Innovation in content and promotional tactics,along with strengthened integration with main-stream media,is essential.Effective dissemination that elicits empathy and presents high-quality publicity materials is crucial for achieving optimal dissemination outcomes and further elevating the hospital's Party building influence.
9.Eligibility of C-BIOPRED severe asthma cohort for type-2 biologic therapies.
Zhenan DENG ; Meiling JIN ; Changxing OU ; Wei JIANG ; Jianping ZHAO ; Xiaoxia LIU ; Shenghua SUN ; Huaping TANG ; Bei HE ; Shaoxi CAI ; Ping CHEN ; Penghui WU ; Yujing LIU ; Jian KANG ; Yunhui ZHANG ; Mao HUANG ; Jinfu XU ; Kewu HUANG ; Qiang LI ; Xiangyan ZHANG ; Xiuhua FU ; Changzheng WANG ; Huahao SHEN ; Lei ZHU ; Guochao SHI ; Zhongmin QIU ; Zhongguang WEN ; Xiaoyang WEI ; Wei GU ; Chunhua WEI ; Guangfa WANG ; Ping CHEN ; Lixin XIE ; Jiangtao LIN ; Yuling TANG ; Zhihai HAN ; Kian Fan CHUNG ; Qingling ZHANG ; Nanshan ZHONG
Chinese Medical Journal 2023;136(2):230-232
10.Research progress on the effects of assisted reproductive technology to offspring epigenetics
Huitian WANG ; Tao LI ; Jianping OU
Chinese Journal of Reproduction and Contraception 2022;42(3):296-300
Although assisted reproductive technology (ART) is an effective method for infertility treatment, its safety deserves great attention. Controlled ovulation stimulation is carried out in the period when the oocyte imprinting gene completes reprogramming, and the in vitro culture of the embryo acts on the sensitive period of imprinting gene demethylation. Intracytoplasmic sperm injection (ICSI) operation will affect the genome, imprinting gene extensive erasure, imprinting reconstruction and maintenance. Gamete and embryo freezing may lead to gene expression disorder, and increase the risk of imprinting genetic diseases. Whether the non-physiological manipulation in ART process will affect the embryos epigenetic regulation program and be further inherited to the next generation needs further investigation. This article reviewed the effects of ART on the epigenetic inheritance of offspring.

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