1.Analysis of the drug resistence and the whole genome characteristics of mycoplasma pneumoniae strains in Suzhou City from 2023 to 2024
Man YUAN ; Xiaolong WANG ; Qiang SHEN ; Xuerong YA ; Xuan YUAN ; Ge TIAN ; Zefeng DONG
Chinese Journal of Preventive Medicine 2025;59(9):1533-1539
To analyze the prevalence, drug resistance and whole genome characteristics of Mycoplasma pneumoniae (MP) in respiratory throat swab samples of hospitalized children with pneumonia in Suzhou City from 2023 to 2024. Throat swab samples of hospitalized children aged 0-14 years old with pneumonia in Suzhou were collected from September 2023 to September 2024. Real-time fluorenscence quantitative PCR technology was used to detect MP nucleic acid. The results showed that the positive rate of MP in 3 235 samples was 22.44% (726/3 235), with a rate of 55.00% in week 47 of 2023. The positive rate of MP increased with age ( χ2=45.842, P<0.001). The study selected MP nucleic acid test positive samples from week 20 (5.13-5.19) to week 23 (6.3-6.9) of 2024 for isolation, culture and resistance phenotype detection. About 31 MP strains were successfully isolated and cultured, all of which were resistant to macrolides. The next-generation sequencing technology and nanopore sequencing technology were used for genome sequencing. All 31 strains carried the A2063G mutation, with the main prevalent genotype being the P1-1, and the main mlST type being the ST3. Despite the overall genomic similarity between strains being over 99%, there were significant differences between the P1-1 and P1-2 strains in the P1 gene region. In summary, from 2023 to 2024, the main MP type prevalent in Suzhou City is the P1-1 genotype. All isolated MP strains carry an A2063G resistance site mutation and are resistant to macrolides, requiring continuous monitoring and further research.
2.Dissecting Social Working Memory: Neural and Behavioral Evidence for Externally and Internally Oriented Components.
Hanxi PAN ; Zefeng CHEN ; Nan XU ; Bolong WANG ; Yuzheng HU ; Hui ZHOU ; Anat PERRY ; Xiang-Zhen KONG ; Mowei SHEN ; Zaifeng GAO
Neuroscience Bulletin 2025;41(11):2049-2062
Social working memory (SWM)-the ability to maintain and manipulate social information in the brain-plays a crucial role in social interactions. However, research on SWM is still in its infancy and is often treated as a unitary construct. In the present study, we propose that SWM can be conceptualized as having two relatively independent components: "externally oriented SWM" (e-SWM) and "internally oriented SWM" (i-SWM). To test this external-internal hypothesis, participants were tasked with memorizing and ranking either facial expressions (e-SWM) or personality traits (i-SWM) associated with images of faces. We then examined the neural correlates of these two SWM components and their functional roles in empathy. The results showed distinct activations as the e-SWM task activated the postcentral and precentral gyri while the i-SWM task activated the precuneus/posterior cingulate cortex and superior frontal gyrus. Distinct multivariate activation patterns were also found within the dorsal medial prefrontal cortex in the two tasks. Moreover, partial least squares analyses combining brain activation and individual differences in empathy showed that e-SWM and i-SWM brain activities were mainly correlated with affective empathy and cognitive empathy, respectively. These findings implicate distinct brain processes as well as functional roles of the two types of SWM, providing support for the internal-external hypothesis of SWM.
Humans
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Memory, Short-Term/physiology*
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Male
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Female
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Empathy/physiology*
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Young Adult
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Magnetic Resonance Imaging
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Adult
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Brain/diagnostic imaging*
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Brain Mapping
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Facial Expression
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Social Behavior
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Facial Recognition/physiology*
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Social Perception
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Personality/physiology*
3.Molecular epidemiology and genetic characteristics of human metapneumovirus in Suzhou
Xuan YUAN ; Zefeng DONG ; Zhihui XU ; Xuerong YA ; Qiang SHEN
Chinese Journal of Microbiology and Immunology 2025;45(10):826-831
Objective:To analyze the epidemiological characteristics of human metapneumovirus(hMPV)in respiratory samples from patients in Suzhou,China,and investigate the results of whole-genome sequencing,so as to provide scientific evidence for a deeper understanding of its genetic diversity and the development of preventive measures.Methods:In this study,1 340 influenza-like illness(ILI)samples and 970 severe acute respiratory infection(SARI)samples were collected from two sentinel hospitals in Suzhou in 2024. Nucleic acid detection was performed using a multiplex real-time fluorescence PCR method. For hMPV-positive samples,whole-genome sequencing was conducted on the Illumina Miseq platform. Mutations,insertions,deletions,and other variations were identified using the pathogenic virus whole-genome analysis system. A phylogenetic tree was constructed by the Maximum Likelihood method for lineage analysis.Results:Among 2 310 respiratory samples,the overall hMPV positivity rate was 1.69%(39/2 310),with positivity rates of 1.27%(17/1 340)in ILI samples and 2.27%(22/970)in SARI samples. No statistically significant difference was observed between the two groups( P>0.05). The proportion of mixed infections in hMPV-positive samples was 46.15%(18/39),with mixed infection rates of 23.53%(4/17)in the ILI group and 63.64%(14/22)in the SARI group. In terms of temporal distribution,the peak period of hMPV infection primarily concentrated in January and December. The whole genomes of 13 hMPV strains were successfully obtained,and 554 missense mutations were identified in the coding region,with particularly significant variations observed in the G gene region. Phylogenetic analysis revealed that 4 strains belonged to the A2b2 subtype,while 9 strains belonged to the B2 subtype. Conclusions:In Suzhou,hMPV exhibits a relatively balanced distribution between ILI and SARI clinical groups,with infection peaks mainly occurring in winter and a high proportion of mixed infections. The predominant circulating strain is the B2 subtype,and its genome shows significant genetic variation,particularly in the G gene region.
4.Molecular epidemiology and genetic characteristics of human metapneumovirus in Suzhou
Xuan YUAN ; Zefeng DONG ; Zhihui XU ; Xuerong YA ; Qiang SHEN
Chinese Journal of Microbiology and Immunology 2025;45(10):826-831
Objective:To analyze the epidemiological characteristics of human metapneumovirus(hMPV)in respiratory samples from patients in Suzhou,China,and investigate the results of whole-genome sequencing,so as to provide scientific evidence for a deeper understanding of its genetic diversity and the development of preventive measures.Methods:In this study,1 340 influenza-like illness(ILI)samples and 970 severe acute respiratory infection(SARI)samples were collected from two sentinel hospitals in Suzhou in 2024. Nucleic acid detection was performed using a multiplex real-time fluorescence PCR method. For hMPV-positive samples,whole-genome sequencing was conducted on the Illumina Miseq platform. Mutations,insertions,deletions,and other variations were identified using the pathogenic virus whole-genome analysis system. A phylogenetic tree was constructed by the Maximum Likelihood method for lineage analysis.Results:Among 2 310 respiratory samples,the overall hMPV positivity rate was 1.69%(39/2 310),with positivity rates of 1.27%(17/1 340)in ILI samples and 2.27%(22/970)in SARI samples. No statistically significant difference was observed between the two groups( P>0.05). The proportion of mixed infections in hMPV-positive samples was 46.15%(18/39),with mixed infection rates of 23.53%(4/17)in the ILI group and 63.64%(14/22)in the SARI group. In terms of temporal distribution,the peak period of hMPV infection primarily concentrated in January and December. The whole genomes of 13 hMPV strains were successfully obtained,and 554 missense mutations were identified in the coding region,with particularly significant variations observed in the G gene region. Phylogenetic analysis revealed that 4 strains belonged to the A2b2 subtype,while 9 strains belonged to the B2 subtype. Conclusions:In Suzhou,hMPV exhibits a relatively balanced distribution between ILI and SARI clinical groups,with infection peaks mainly occurring in winter and a high proportion of mixed infections. The predominant circulating strain is the B2 subtype,and its genome shows significant genetic variation,particularly in the G gene region.
5.Analysis of the drug resistence and the whole genome characteristics of mycoplasma pneumoniae strains in Suzhou City from 2023 to 2024
Man YUAN ; Xiaolong WANG ; Qiang SHEN ; Xuerong YA ; Xuan YUAN ; Ge TIAN ; Zefeng DONG
Chinese Journal of Preventive Medicine 2025;59(9):1533-1539
To analyze the prevalence, drug resistance and whole genome characteristics of Mycoplasma pneumoniae (MP) in respiratory throat swab samples of hospitalized children with pneumonia in Suzhou City from 2023 to 2024. Throat swab samples of hospitalized children aged 0-14 years old with pneumonia in Suzhou were collected from September 2023 to September 2024. Real-time fluorenscence quantitative PCR technology was used to detect MP nucleic acid. The results showed that the positive rate of MP in 3 235 samples was 22.44% (726/3 235), with a rate of 55.00% in week 47 of 2023. The positive rate of MP increased with age ( χ2=45.842, P<0.001). The study selected MP nucleic acid test positive samples from week 20 (5.13-5.19) to week 23 (6.3-6.9) of 2024 for isolation, culture and resistance phenotype detection. About 31 MP strains were successfully isolated and cultured, all of which were resistant to macrolides. The next-generation sequencing technology and nanopore sequencing technology were used for genome sequencing. All 31 strains carried the A2063G mutation, with the main prevalent genotype being the P1-1, and the main mlST type being the ST3. Despite the overall genomic similarity between strains being over 99%, there were significant differences between the P1-1 and P1-2 strains in the P1 gene region. In summary, from 2023 to 2024, the main MP type prevalent in Suzhou City is the P1-1 genotype. All isolated MP strains carry an A2063G resistance site mutation and are resistant to macrolides, requiring continuous monitoring and further research.
6.A preliminary exploration of clinical practice in 5G-ultra-long-distance robot-assisted liver resection
Xiao LIANG ; Zefeng SHEN ; Yuxin FAN ; Yangyang XIE ; Ren′an JIN ; Mingyu CHEN ; Zheyong LI ; Xiujun CAI
Chinese Journal of Surgery 2025;63(6):508-514
Objective:To summarize the initial experience of 5G-ultra-long-distance robotic hepatectomy.Methods:This is a retrospective case series study. The clinical information from 5 cases of 5G ultra-long-distance robot-assisted hepatectomy performed was collected from June 2023 to October 2024, in collaboration between Sir Run Run Shaw Hospital, Zhejiang University School of Medicine in Hangzhou and Alaer Hospital, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine in Alaer, located 4 600 km apart. The patients comprised 1 male and 4 females, aged from 36 to 59 years, with an average age of 48 years. Their body mass index ranged from 20.4 to 30.9 kg/m2, with an average of 24.62 kg/m2. Preoperatively, 5 patients were diagnosed with liver disease requiring hepatectomy. The operations used 5G ultra-remote four-arm endoscopic robot surgery system. The remote control room was located in Sir Run Run Shaw Hospital (Hangzhou, Zhejiang), and the robot operating room was located in Alaer Hospital (Alaer, Xinjiang). The wired network relied on 60 Mb/s high-speed public Internet special line (China Telecom). In order to ensure the security of data transmission, the system implemented a double-layer encryption strategy for the wired network, and carried out strict debugging and verification for both the wired and wireless networks. Perioperative data and information on network performance were collected for 5 patients.Results:The surgical duration of the 5 cases of 5G ultra-long-distance robot-assisted hepatectomy ranged from 49 to 342 minutes, with an average of 184 minutes. Intraoperative blood loss varied from 5 to 800 ml, averaging 183 ml. Network performance was evaluated during the surgery, revealing an average network latency of 108.2 ms, with no significant lag or delay observed during any of the procedures. All patients recovered smoothly, with a postoperative hospital stay ranging from 5 to 10 days, averaging 7.2 days. Postoperative complications included 1 case of hypoproteinemia and 1 case of pleural effusion. Pathological examination confirmed that all cases suffered benign liver diseases (three patients with hepatic hemangioma, one with regenerative nodule in cirrhosis, and one with hepatolithiasis and choledocholithiasis).Conclusion:The preliminary exploration of clinical practice indicated that 5G-ultra-long-distance robot-assisted surgery is feasible for hepatectomy, with no severe complications affecting patients′ recovery.
7.A preliminary exploration of clinical practice in 5G-ultra-long-distance robot-assisted liver resection
Xiao LIANG ; Zefeng SHEN ; Yuxin FAN ; Yangyang XIE ; Ren′an JIN ; Mingyu CHEN ; Zheyong LI ; Xiujun CAI
Chinese Journal of Surgery 2025;63(6):508-514
Objective:To summarize the initial experience of 5G-ultra-long-distance robotic hepatectomy.Methods:This is a retrospective case series study. The clinical information from 5 cases of 5G ultra-long-distance robot-assisted hepatectomy performed was collected from June 2023 to October 2024, in collaboration between Sir Run Run Shaw Hospital, Zhejiang University School of Medicine in Hangzhou and Alaer Hospital, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine in Alaer, located 4 600 km apart. The patients comprised 1 male and 4 females, aged from 36 to 59 years, with an average age of 48 years. Their body mass index ranged from 20.4 to 30.9 kg/m2, with an average of 24.62 kg/m2. Preoperatively, 5 patients were diagnosed with liver disease requiring hepatectomy. The operations used 5G ultra-remote four-arm endoscopic robot surgery system. The remote control room was located in Sir Run Run Shaw Hospital (Hangzhou, Zhejiang), and the robot operating room was located in Alaer Hospital (Alaer, Xinjiang). The wired network relied on 60 Mb/s high-speed public Internet special line (China Telecom). In order to ensure the security of data transmission, the system implemented a double-layer encryption strategy for the wired network, and carried out strict debugging and verification for both the wired and wireless networks. Perioperative data and information on network performance were collected for 5 patients.Results:The surgical duration of the 5 cases of 5G ultra-long-distance robot-assisted hepatectomy ranged from 49 to 342 minutes, with an average of 184 minutes. Intraoperative blood loss varied from 5 to 800 ml, averaging 183 ml. Network performance was evaluated during the surgery, revealing an average network latency of 108.2 ms, with no significant lag or delay observed during any of the procedures. All patients recovered smoothly, with a postoperative hospital stay ranging from 5 to 10 days, averaging 7.2 days. Postoperative complications included 1 case of hypoproteinemia and 1 case of pleural effusion. Pathological examination confirmed that all cases suffered benign liver diseases (three patients with hepatic hemangioma, one with regenerative nodule in cirrhosis, and one with hepatolithiasis and choledocholithiasis).Conclusion:The preliminary exploration of clinical practice indicated that 5G-ultra-long-distance robot-assisted surgery is feasible for hepatectomy, with no severe complications affecting patients′ recovery.
8.In vitro anti-influenza A virus H3N2 activity of lithium chloride
Hongkai ZHANG ; Jia ZANG ; Yanshi WU ; Yueping XING ; Zefeng DONG ; Xuerong YA ; Qiang SHEN
Chinese Journal of Experimental and Clinical Virology 2024;38(5):539-546
Objective:To analyze the activity of lithium chloride (LiCl) against influenza virus A (H3N2) in human non-small cell lung cancer cells (A549).Methods:Different concentrations of LiCl were incubated with A549 cells, and the cytopathic effect (CPE) was observed after 24 hours, and the effect of LiCl on cell activity was determined by CCK-8 method. After H3N2 (MOI=1) infected A549 cells, different concentrations of LiCl were added and incubated for 24 hours, and the viral load was measured by real time/reverse transcription quantitative polymerase chain reaction (RT-qPCR), and the CPE was observed, and the viral titer was determined. Different concentrations of LiCl were incubated with A549 at 37 ℃ and 5% CO 2 for 2 hours, virus was added and incubated for 24 hours, and the viral load was determined by RT-qPCR. LiCl, H3N2 and A549 were incubated at 4 ℃ for 1 hour, 35 ℃, 5% CO 2 for 24 hours, and viral load was determined by RT-qPCR. H3N2 and A549 were incubated at 4 ℃for 1 hour, then different concentrations of LiCl were added, incubated at 35 ℃ with 5% CO 2 for 24 hours, and the viral load was determined by RT-qPCR. After H3N2 infected A549 cells, different concentrations of LiCl were added and incubated for 24 hours, and the viral RNA load and viral titer of the supernatant and cells were measured, respectively, and then the corresponding ratios of the supernatant and the cells were calculated. After H3N2 (MOI=10) and BV (MOI=1) infected A549 cells, different concentrations of LiCl were added for 24 h, and the viral load was determined by RT-qPCR. Results:When the concentration of LiCl was<50 mmol/L, the cell viability of A549>90%. Different concentrations of LiCl could significantly reduce the viral load of H3N2 ( P<0.000 1), and the CPE of the LiCl treatment group was more dose-dependent than that of the control group. LiCl did not inhibit viral replication by affecting the cell itself; Different concentrations of LiCl significantly inhibited the entry of H3N2 into A549 ( P<0.000 1), and also had a certain inhibitory effect on the adsorption of A549 cells ( P<0.1). LiCl did not affect the assembly and release of H3N2 ( P>0.05), and it was also found that LiCl had a broad spectrum of antiviral effects against multiple influenza virus strains ( P<0.000 1). Conclusions:LiCl may exert antiviral effect by inhibiting the adsorption and entry of H3N2 into A549 cells and the replication of H3N2 in A549 cells, which provides a data reference for the prevention and treatment of viral infection by LiCl.
9.Mingshi Formula (明视方) for Low Myopia in Children with Heart Yang Insufficiency Syndrome: A Multicentre, Double-Blind, Randomised Placebo-Controlled Study
Jianquan WANG ; Xinyue HOU ; Zefeng KANG ; Yingxin YANG ; Xinquan LIU ; Zhihua SHEN ; Xiaoyi YU ; Jing YAO ; Fengming LIANG ; Fengmei ZHANG ; Jingsheng YU ; Ningli WANG ; Man SONG ; Hongrui SUN ; Xin YAN
Journal of Traditional Chinese Medicine 2024;65(6):587-593
ObjectiveTo observe the effectiveness and safety of the Chinese herbal medicine Mingshi Granules (明视方颗粒) for low myopia in children with heart yang insufficiency. MethodsA multicentre, prospective, double-blind randomised controlled study was conducted, in which 290 children with low myopia from 8 centres were randomly divided into 145 cases in the treatment group and 145 cases in the control group, and the treatment group was given education, dispensing glasses, and Chinese herbal medicine Mingshi Granules, while the control group was given education, dispensing glasses, and granules placebo. Both Mingshi Granules and placebo granules were taken orally, 1 bag each time, twice daily, 4 weeks of oral intake and 2 weeks of rest as 1 course of treatment, a total of 4 courses of treatment (24 weeks). Equivalent spherical lenses, best naked-eye distance visual acuity, ocular axis, corneal curvature K1, adjustment amplitude, traditional Chinese medicine (TCM) symptom scores, calculate the amount of progression of equivalent spherical lenses, were observed at the 12th and the 24th week of treatment, at the 36th week and 48th week of follow-up, resectively, the control rate of myopia progression was evaluated at the 24th week, and safety indexes were observed before treatment. ResultsThe amount of progression of equivalent spherical lenses was lower in the treatment group than in the control group at the 48-week follow-up (P<0.05). The control rate of myopia progression at 24 weeks after treatment in the treatment group was higher (57.60%, 72/125) than that in the control group (44.63%, 54/121) (P<0.05). The best naked-eye distance visual acuity at 36-week follow-up in the treatment group was higher than that in the control group (P<0.05). Equivalent spherical lenses were significantly lower in both groups at all observation time points compared with pre-treatment (P<0.05), and were higher in the treatment group than in the control group at the 48-week follow-up (P<0.05). The ocular axes of both groups were significantly higher at each observation time point after treatment and at follow-up compared with before treatment (P<0.05). The amount of eye axis growth in the treatment group was lower than that in the control group at 24 weeks after treatment and at the 48-week follow-up (P<0.05). Corneal curvature K1 was significantly lower in the treatment group at the 24th week of treatment compared to pre-treatment (P<0.05). The magnitude of adjustment in the treatment group was significantly higher at the 36-week follow-up and at the 48-week follow-up than before treatment (P<0.05). The scores of white/dark complexion, white coating thin pulse, fatigue and total TCM symptom scores of children in both groups at the 12th, 24th, 36th and 48th weeks of follow-up were significantly lower than those before treatment (P<0.05); the scores of blurred vision at the 24th and 36th weeks of follow-up were significantly lower than those before treatment (P<0.05); and the scores of blurred vision in the treatment group at the 48th week of follow-up were signi-ficantly lower than those before treatment (P<0.05). In the treatment group, the score of fatigue was higher than that of the control group at the 36-week follow-up, and the score of blurred vision was lower than that of the control group at the 48-week follow-up (P<0.05). No adverse reactions or obvious abnormalities of the safety indexes were observed of the two groups during the treatment. ConclusionChinese herbal medicine Mingshi Granules showed the effect of controlling the progression of low myopia, improving the best naked eye distance visual acuity, slowing down the growth of the eye axis, improving some of the TCM symptoms, with good safety.
10.Current status and influencing factors of rumination in inpatients with metastatic prostate cancer based on the disease coping mechanism
Danjing SHEN ; Yongzhen LIU ; Yi JIN ; Xulin HE ; Zefeng WANG ; Xudong YAO ; Ruimei SONG
Chinese Journal of Modern Nursing 2024;30(5):597-603
Objective:To explore the current status of rumination in inpatients with metastatic prostate cancer (mPCa) under the disease coping mechanism, and analyzing its influencing factors.Methods:From March 2021 to December 2022, 267 mPCa inpatients at the Tenth People's Hospital of Tongji University were selected as the study subject using convenience sampling. The survey was conducted using the General Information Questionnaire, Chinese Version of Event Relate Rumination Inventory (C-ERI), Medical Coping Modes Questionnaire (MCMQ), International Prostate Symptom Score (IPSS), and Social Support Revalued Scale (SSRS), and the factors influencing the rumination in patients were analyzed.Results:This study collected 260 valid questionnaires, with an effective response rate of 97.4% (260/267). The total score of rumination in 260 mPCa patients was (31.08±6.46), with invasive rumination and purposeful rumination scores of (14.13±4.44) and (16.95±4.55), respectively. The initial prostate-specific antigen index, confrontation medical coping modes were the influencing factors of invasive rumination in mPCa patients ( P<0.05). The initial prostate-specific antigen index, course of disease, social support, and confrontation medical coping style were the influencing factors of purposeful rumination in mPCa patients ( P<0.05) . Conclusions:The rumination of mPCa patients is above the medium level, and is influenced by multiple factors under the disease coping mechanism. Clinical medical and nursing staff should combine the clinical situation and characteristics of mPCa patients, provide personalized interventions as early as possible, and assist patients in improving their positive cognitive processing abilities.

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