1.Cost-effectiveness and return on investment of hepatitis C virus elimination in China: A modelling study
Meiyu WU ; Jing MA ; Xuehong WANG ; Sini LI ; Chongqing TAN ; Ouyang XIE ; Andong LI ; Aaron G LIM ; Xiaomin WAN
Clinical and Molecular Hepatology 2025;31(2):394-408
Background/Aims:
The World Health Organization set the goal of eliminating hepatitis C virus (HCV) by 2030, with 80% and 65% reductions in HCV incidence and mortality rates, respectively. We aimed to evaluate the health benefits, cost-effectiveness and return on investment (ROI) of HCV elimination.
Methods:
Using an HCV transmission compartmental model, we evaluated the benefits and costs of different strategies combining screening and treatment for Chinese populations. We identified strategies to achieve HCV elimination and calculated the incremental cost-effectiveness ratios (ICERs) per disability-adjusted life year (DALY) averted for 2022–2030 to identify the optimal elimination strategy. Furthermore, we estimated the ROI by 2050 by comparing the required investment with the economic productivity gains from reduced HCV incidence and deaths.
Results:
The strategy that results in the most significant health benefits involves conducting annual primary screening at a rate of 14%, re-screening people who inject drugs annually and the general population every five years, and treating 95% of those diagnosed (P14-R4-T95), preventing approximately 5.75 and 0.44 million HCV infections and deaths, respectively, during 2022–2030. At a willingness-to-pay threshold of $12,615, the P14-R4-T95 strategy is the most cost-effective, with an ICER of $5,449/DALY. By 2050, this strategy would have a net benefit of $120,997 million (ROI=0.868).
Conclusions
Achieving HCV elimination in China by 2030 will require significant investment in large-scale universal screening and treatment, but it will yield substantial health and economic benefits and is cost-effective.
2.The effect of vanadyl bis(acetylacetonato)on the proliferation and invasion of human adrenocortical carci-noma cells
Meiyu GAN ; Chunjiao WU ; Jingyi QIN ; Zuojie LUO
The Journal of Practical Medicine 2025;41(6):781-789
Objective To investigate the effects of bis(acetylacetonato)oxovanadium(IV)[VO(acac)?]on human adrenocortical carcinoma cell lines SW-13 and NCI-H295R in vitro,aiming to determine whether VO(acac)?promotes or inhibits the proliferation,migration,and invasion of these cells.Methods SW-13 and NCI-H295R cells in logarithmic growth phase were exposed to VO(acac)? at concentrations of 6.25,12.5,25,50,75,100,and 200 μmol/L for 24 and 48 hours,respectively.Mitotane served as the positive control.Cell viability was assessed using the CCK-8 assay to evaluate the effects of VO(acac)? on SW-13 and NCI-H295R cells.Subsequently,cells were treated with VO(acac)? at concentrations of 0,6.25,12.5,and 25 μmol/L for 48 hours,and flow cytometry was employed to investigate the impact of VO(acac)? on apoptosis.The migratory ability of the cells was evaluated using a wound healing assay,while their invasive capacity was assessed via a Transwell assay.Additionally,the clonogenic assay was used to determine the proliferative potential of SW-13 and NCI-H295R cells following VO(acac)?treatment.Results The CCK-8 results demonstrated that VO(acac)2 inhibited the viability of SW-13 and NCI-H295R cells in a time-and concentration-dependent manner.Specifically,the half-maximal inhibitory concentra-tions(IC50)for VO(acac)2 against SW-13 cells were 62.98±6.67 μmol/L after 24 hours and(14.61±1.66)μmol/L after 48 hours of treatment,while the corresponding IC50 values for NCI-H295R cells were 46.78±7.89 μmol/L and 12.61±2.98 μmol/L,respectively.Flow cytometry analysis revealed that VO(acac)2 induced apoptosis in both SW-13 and NCI-H295R cells in a concentration-dependent manner(P<0.05).The wound healing assay indicated a significant reduction in the migratory rate of SW-13 and NCI-H295R cells with increasing concentrations of VO(acac)2(P<0.05).Transwell assay results showed that VO(acac)2 significantly inhibited the invasive ability of SW-13 and NCI-H295R cells in a concentration-dependent fashion.Finally,the clonogenic assay confirmed that VO(acac)2 suppressed the proliferative capacity of SW-13 and NCI-H295R cells in a concentration-dependent manner.Conclusion VO(acac)2 inhibits the proliferation,migration,and invasion of human adrenocortical carcinoma cells(SW-13 and NCI-H295R),while inducing apoptosis in these cell lines.
3.Cost-effectiveness and return on investment of hepatitis C virus elimination in China: A modelling study
Meiyu WU ; Jing MA ; Xuehong WANG ; Sini LI ; Chongqing TAN ; Ouyang XIE ; Andong LI ; Aaron G LIM ; Xiaomin WAN
Clinical and Molecular Hepatology 2025;31(2):394-408
Background/Aims:
The World Health Organization set the goal of eliminating hepatitis C virus (HCV) by 2030, with 80% and 65% reductions in HCV incidence and mortality rates, respectively. We aimed to evaluate the health benefits, cost-effectiveness and return on investment (ROI) of HCV elimination.
Methods:
Using an HCV transmission compartmental model, we evaluated the benefits and costs of different strategies combining screening and treatment for Chinese populations. We identified strategies to achieve HCV elimination and calculated the incremental cost-effectiveness ratios (ICERs) per disability-adjusted life year (DALY) averted for 2022–2030 to identify the optimal elimination strategy. Furthermore, we estimated the ROI by 2050 by comparing the required investment with the economic productivity gains from reduced HCV incidence and deaths.
Results:
The strategy that results in the most significant health benefits involves conducting annual primary screening at a rate of 14%, re-screening people who inject drugs annually and the general population every five years, and treating 95% of those diagnosed (P14-R4-T95), preventing approximately 5.75 and 0.44 million HCV infections and deaths, respectively, during 2022–2030. At a willingness-to-pay threshold of $12,615, the P14-R4-T95 strategy is the most cost-effective, with an ICER of $5,449/DALY. By 2050, this strategy would have a net benefit of $120,997 million (ROI=0.868).
Conclusions
Achieving HCV elimination in China by 2030 will require significant investment in large-scale universal screening and treatment, but it will yield substantial health and economic benefits and is cost-effective.
4.Cost-effectiveness and return on investment of hepatitis C virus elimination in China: A modelling study
Meiyu WU ; Jing MA ; Xuehong WANG ; Sini LI ; Chongqing TAN ; Ouyang XIE ; Andong LI ; Aaron G LIM ; Xiaomin WAN
Clinical and Molecular Hepatology 2025;31(2):394-408
Background/Aims:
The World Health Organization set the goal of eliminating hepatitis C virus (HCV) by 2030, with 80% and 65% reductions in HCV incidence and mortality rates, respectively. We aimed to evaluate the health benefits, cost-effectiveness and return on investment (ROI) of HCV elimination.
Methods:
Using an HCV transmission compartmental model, we evaluated the benefits and costs of different strategies combining screening and treatment for Chinese populations. We identified strategies to achieve HCV elimination and calculated the incremental cost-effectiveness ratios (ICERs) per disability-adjusted life year (DALY) averted for 2022–2030 to identify the optimal elimination strategy. Furthermore, we estimated the ROI by 2050 by comparing the required investment with the economic productivity gains from reduced HCV incidence and deaths.
Results:
The strategy that results in the most significant health benefits involves conducting annual primary screening at a rate of 14%, re-screening people who inject drugs annually and the general population every five years, and treating 95% of those diagnosed (P14-R4-T95), preventing approximately 5.75 and 0.44 million HCV infections and deaths, respectively, during 2022–2030. At a willingness-to-pay threshold of $12,615, the P14-R4-T95 strategy is the most cost-effective, with an ICER of $5,449/DALY. By 2050, this strategy would have a net benefit of $120,997 million (ROI=0.868).
Conclusions
Achieving HCV elimination in China by 2030 will require significant investment in large-scale universal screening and treatment, but it will yield substantial health and economic benefits and is cost-effective.
5.The effect of vanadyl bis(acetylacetonato)on the proliferation and invasion of human adrenocortical carci-noma cells
Meiyu GAN ; Chunjiao WU ; Jingyi QIN ; Zuojie LUO
The Journal of Practical Medicine 2025;41(6):781-789
Objective To investigate the effects of bis(acetylacetonato)oxovanadium(IV)[VO(acac)?]on human adrenocortical carcinoma cell lines SW-13 and NCI-H295R in vitro,aiming to determine whether VO(acac)?promotes or inhibits the proliferation,migration,and invasion of these cells.Methods SW-13 and NCI-H295R cells in logarithmic growth phase were exposed to VO(acac)? at concentrations of 6.25,12.5,25,50,75,100,and 200 μmol/L for 24 and 48 hours,respectively.Mitotane served as the positive control.Cell viability was assessed using the CCK-8 assay to evaluate the effects of VO(acac)? on SW-13 and NCI-H295R cells.Subsequently,cells were treated with VO(acac)? at concentrations of 0,6.25,12.5,and 25 μmol/L for 48 hours,and flow cytometry was employed to investigate the impact of VO(acac)? on apoptosis.The migratory ability of the cells was evaluated using a wound healing assay,while their invasive capacity was assessed via a Transwell assay.Additionally,the clonogenic assay was used to determine the proliferative potential of SW-13 and NCI-H295R cells following VO(acac)?treatment.Results The CCK-8 results demonstrated that VO(acac)2 inhibited the viability of SW-13 and NCI-H295R cells in a time-and concentration-dependent manner.Specifically,the half-maximal inhibitory concentra-tions(IC50)for VO(acac)2 against SW-13 cells were 62.98±6.67 μmol/L after 24 hours and(14.61±1.66)μmol/L after 48 hours of treatment,while the corresponding IC50 values for NCI-H295R cells were 46.78±7.89 μmol/L and 12.61±2.98 μmol/L,respectively.Flow cytometry analysis revealed that VO(acac)2 induced apoptosis in both SW-13 and NCI-H295R cells in a concentration-dependent manner(P<0.05).The wound healing assay indicated a significant reduction in the migratory rate of SW-13 and NCI-H295R cells with increasing concentrations of VO(acac)2(P<0.05).Transwell assay results showed that VO(acac)2 significantly inhibited the invasive ability of SW-13 and NCI-H295R cells in a concentration-dependent fashion.Finally,the clonogenic assay confirmed that VO(acac)2 suppressed the proliferative capacity of SW-13 and NCI-H295R cells in a concentration-dependent manner.Conclusion VO(acac)2 inhibits the proliferation,migration,and invasion of human adrenocortical carcinoma cells(SW-13 and NCI-H295R),while inducing apoptosis in these cell lines.
6.A survey on the current situation and influencing factors of catastrophic pain in patients with multiple fractures
Ruoxin LIU ; Shujing FANG ; Mei LIU ; Hui YUAN ; Qiong WU ; Meiyu SONG ; Hanmei SONG ; Mingming ZHENG ; Yuanyuan ZHU ; Jun ZHANG
Journal of Clinical Medicine in Practice 2024;28(11):110-113
Objective To explore the pain catastrophizing (PC) level of pain in patients with multiple fractures and its influencing factors. Methods A convenience sampling method was used to investigate 156 patients with multiple fractures in the orthopedic trauma department of the First Affiliated Hospital of Nanjing Medical University. The questionnaire included a general information survey, a Digital Pain Rating Scale, PC scale, Positive and Negative Emotion Scale, and Social Rating Scale. Results The average PC score of patients with multiple fractures was (23.22±12.05), with 27 patients (17.20%) reaching the PC level. The average score of the Digital Pain Rating Scale was (6.30±1.49), the score of the Positive Emotion Scale was (27.92±6.06), the score of the Negative Emotion Scale was (23.18±7.00), and the total score of the Social Rating Scale was (27.90±4.61). The results of multiple linear regression analysis showed that pain score, negative emotion level, and social support level had predictive effects in PC among patients with multiple fractures. Conclusion The incidence of PC among patients with multiple fractures is at a moderate to high level. Patients with high pain scores, high negative emotion scores, and low social support are more likely to develop PC.
7.Multiple roles of arsenic compounds in phase separation and membraneless organelles formation determine their therapeutic efficacy in tumors
Qu MEIYU ; He QIANGQIANG ; Bao HANGYANG ; Ji XING ; Shen TINGYU ; Barkat Qasim MUHAMMAD ; Wu XIMEI ; Zeng LING-HUI
Journal of Pharmaceutical Analysis 2024;14(8):1110-1124
Arsenic compounds are widely used for the therapeutic intervention of multiple diseases.Ancient pharmacologists discovered the medicinal utility of these highly toxic substances,and modern phar-macologists have further recognized the specific active ingredients in human diseases.In particular,Arsenic trioxide(ATO),as a main component,has therapeutic effects on various tumors(including leukemia,hepatocellular carcinoma,lung cancer,etc.).However,its toxicity limits its efficacy,and con-trolling the toxicity has been an important issue.Interestingly,recent evidence has pointed out the pivotal roles of arsenic compounds in phase separation and membraneless organelles formation,which may determine their toxicity and therapeutic efficacy.Here,we summarize the arsenic compounds-regulating phase separation and membraneless organelles formation.We further hypothesize their potential involvement in the therapy and toxicity of arsenic compounds,highlighting potential mecha-nisms underlying the clinical application of arsenic compounds.
8.Diagnostic value of endorectal ultrasound in the rectal neuroendocrine neoplasm
Hang YI ; Xiaoyin LIU ; Meiyu HU ; Wenjing ZHANG ; Qianyu WU ; Guangjian LIU
Chinese Journal of Ultrasonography 2024;33(3):216-222
Objective:To investigate the endorectal ultrasound findings in rectal neuroendocrine neoplasms (R-NEN) and to compare the diagnostic performance of ERUS and MRI for T staging of R-NENs.Methods:The imaging features of 77 confirmed R-NEN cases with different pathological grades in the Sixth Affiliated Hospital, Sun Yat-sen University from August 2015 to August 2021 were retrospectively analyzed and the abilities of ERUS and MRI for T staging of R-NENs were compared.Results:A total of 77 R-NEN patients underwent preoperative ERUS examinations and detected lesions in 62 patients with a detection rate of 80.52%. Among them, 30 cases underwent simultaneous MRI examinations, and detected lesions in 25 cases with a detection rate of 83.33%, without statistical difference between MRI and ERUS ( P>0.05). R-NEN exhibited hypoechoic nodules with rich blood flow in the submucosa on ERUS. Grade G1 and G2 tumors generally had sizes less than 10 mm, clear boundaries, and regular shapes, while G3 was typically large, irregular, poorly defined, and more likely to invade the musculi propria and serous layer. G3 demonstrated a more profound infiltration level, a less defined border, and a larger diameter than G1 and G2, with statistically significant differences (all P<0.05). For T staging, the accuracy of ERUS was 86.67%, and that of MRI was 94.67%, with no statistical difference ( P>0.05). Conclusions:ERUS is effective for detecting R-NEN lesions and useful for tumor grading with comparable performance to MRI, and should be recommended for preoperative evaluation of neuroendocrine tumors.
9.Progress on the characteristics, prevention and treatment of neonatal central nervous system ureaplasma infection
Lihua ZHANG ; Meiyu ZHENG ; Yue ZHANG ; Xiaoming LYU ; Hui WU
Chinese Pediatric Emergency Medicine 2022;29(5):383-388
Ureaplasma is an opportunistic pathogen with a high population carrying rate.Maternal ureaplasma infection is related to adverse pregnancy outcomes such as premature birth etc.Ureaplasma infection in neonates can cause central nervous system inflammation and eventually lead to poor nervous system prognosis.Although the incidence of invasive central nervous system infection in newborns is low, due to the presence of immune escape in the body, atypical clinical manifestations after ureaplasma infection, and insensitivity to routine detection methods, the central ureaplasma infection in newborns is often unable to diagnose and treat properly in time, so it can easily lead to delayed treatment, which can lead to serious complications.This review aimed to explain the pathogenesis, clinical manifestations and complications of central nervous system inflammation caused by ureaplasma infection, and share diagnosis methods, as well as successful treatment experience in related cases, so as to provide the basis for early diagnosis and reasonable treatment, thereby reducing the occurrence of adverse neurological outcomes caused by ureaplasma infection.
10.Effects of radon exposure on lung function and metal balance in mice
Huimeng LIU ; Meiyu WANG ; Guangrui CHEN ; Huiyu ZHOU ; Yong YUAN ; Zhiyun MENG ; Ruolan GU ; Hui GAN ; Zhuona WU ; Guifang DOU
Chinese Journal of Radiological Medicine and Protection 2022;42(11):845-850
Objective:To explore the disturbance of metal element balance in mice after exposure to radon.Methods:Mice were randomly divided into control group, radon exposure of 30 WLM group, 60 WLM group and 120 WLM groups, with 10 mice in each group. After radon exposure with the cumulative dose, the lung function of mice was detected by a non-invasive pulmonary function testing instrument. Mice blood was taken from eyeballs. The lungs, heart, liver, kidney and spleen were also collected. HE staining was used to observe the pathological changes of lung tissue. Inductively coupled plasma mass spectrometry (ICP-MS) was used to detect the content of metal elements, including essential trace elements in the body: chromium (Cr), molybdenum (Mo), cobalt (Co), selenium (Se), copper (Cu), zinc (Zn), manganese (Mn), nickel (Ni), and potentially toxic elements: arsenic (As), tin (Sn), lead (Pb), aluminum (Al), mercury (Hg), cadmium (Cd), and silver (Ag).Results:Compared with the control group, lung ventilation function of the radon-exposed mice was decreased, alveolar structure was destroyed, and the contents of pulmonary metal elements Cr, Al, Pb, Sn( F=0.34, 0.66, 3.14, 1.16, P<0.05) and essential trace elements Mn, Cr, Zn, and Mo in the blood were decreased( F=0.65, 1.44, 0.97, 2.08, P<0.05), while the elements of Cu, Mo, Se and As in the lungs were increased( F=1.31, 1.26, 0.81, 2.04, P<0.05), and the element contents in other tissues also fluctuated. Conclusions:Inhalation of a certain cumulative dose of radon can reduce the lung ventilation function of mice and induce lung inflammation, as well reduce the content of essential trace elements in the lung and blood so that the content of metal elements in the body fluctuates.


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