1.Discount rate setting and adjustment in international pharmacoeconomic evaluation guidelines
Yiwei LI ; Jingbo ZHANG ; Huiwen YANG ; Hanfei WANG ; Yusi SUO ; Han WANG ; Zhien GU ; Xuejing JIN
China Pharmacy 2025;36(20):2542-2547
OBJECTIVE To provide direction and reference for the adjustment of the discount rate (DR) in China’s pharmacoeconomic guidelines. METHODS Search was conducted on the official websites of the International Society for Pharmacoeconomics and Outcomes Research, health technology assessment agencies in various countries/regions, as well as relevant websites of other upper-middle-income or high-income countries/regions. The recommended DR, adjustment trends, and setting rationales in pharmacoeconomic evaluation guidelines across different countries/regions were then summarized and compared. Based on theoretical derivation and literature analysis, the effects of different DR on the incremental cost-effectiveness ratio (ICER) were examined. RESULTS & CONCLUSIONS Among the 40 included guidelines, the base-case DR ranged from 1.5% to 5%, with 5% being the most common value; the range for sensitivity analysis was 0 to 12%. Thirty-six countries/regions applied the same DR to both costs and health outcomes, while in the Netherlands, Belgium, Poland and Czech Republic, DR for costs was higher than for health outcomes. In recent years, Korea, France and Ireland had lowered their DR in response to economic changes, whereas the Netherlands and Czech Republic had raised their DR for cost. The setting of the DR was primarily based on the public project investment interest rate or referred to recommendations from internationally authoritative institutions and other relevant guidelines. The direction and magnitude of the impact of different DR on the ICER largely depended on the distribution of costs and health outcomes between the intervention and reference measure. The setting and adjustment of DR were closely associated with the economic environment. Based on international experience, the DR in China can be lowered by 0.5% to 1.5%, and localized empirical research can be conducted using internationally common estimation methods.
2.Association between incidence of hand-foot-mouth disease and meteorological factors
YANG Ya ; FEI Jie ; YANG Yiwei ; ZHANG Bing ; ZHANG Qian ; LU Yihan
Journal of Preventive Medicine 2025;37(4):346-349,355
Objective:
To examine the association between incidence of hand-foot-mouth disease (HFMD) and meteorological factors, so as to provide the basis for the prevention and control of HFMD.
Methods:
The number of HFMD cases in Jiading District, Shanghai Municipality from 2016 to 2023 were collected through the Chinese Disease Prevention and Control Information System, and meteorological data were obtained from the Shanghai Meteorological Bureau. The associations of daily average temperature, daily average relative humidity, and daily average atmospheric pressure with the daily number of HFMD cases were analyzed using a distributed lag non-linear model (DLNM).
Results:
A total of 21 555 HFMD cases were reported in Jiading District from 2016 to 2023, with an average annual incidence of 132.57/100 000. There were 12 762 male cases (59.21%) and 8 793 female cases (40.79%). The main peak of incidence occurred from June to August, and the secondary peak was from October to December. DLNM analysis showed that the incidence risk of HFMD first increased and then decreased with the increase of daily average temperature, and first decreased and then increased with the prolongation of the lag time. The cumulative lag risk was higher when the daily average temperature ranged from 18.4 to 35.1 ℃, and the maximum cumulative lag effect was observed at 27.8 ℃ (RR=5.522, 95%CI: 4.751-6.370). The incidence risk of HFMD first increased and then decreased with the increase of daily average relative humidity, and first decreased, then increased and then decreased again with the prolongation of the lag time. The cumulative lag risk was higher when the daily average relative humidity ranged from 71.7% and 90.8%, and the maximum cumulative lag effect was observed at 81.8% (RR=1.603, 95%CI: 1.321-1.995). The incidence risk of HFMD decreased with the increase of daily average atmospheric pressure, and decreased with the prolongation of the lag time when the daily average atmospheric pressure was greater than 1 015.80 hPa. When the daily average atmospheric pressure was less than 1 015.80 hPa, the incidence risk of HFMD increased with the prolongation of the lag time. The maximum cumulative lag effect was observed at 986.80 hPa (RR=8.513, 95%CI: 1.401-36.625).
Conclusion
The incidence risk of HFMD in Jiading District initially increases and then decreases with increasing temperature and relative humidity, while it decreases with increasing atmospheric pressure, and these effects exhibit a lagged response.
3.Plasma club cell secretory protein reflects early lung injury: comprehensive epidemiological evidence.
Jiajun WEI ; Jinyu WU ; Hongyue KONG ; Liuquan JIANG ; Yong WANG ; Ying GUO ; Quan FENG ; Jisheng NIE ; Yiwei SHI ; Xinri ZHANG ; Xiaomei KONG ; Xiao YU ; Gaisheng LIU ; Fan YANG ; Jun DONG ; Jin YANG
Environmental Health and Preventive Medicine 2025;30():26-26
BACKGROUND:
It is inaccurate to reflect the level of dust exposure through working years. Furthermore, identifying a predictive indicator for lung function decline is significant for coal miners. The study aimed to explored whether club cell secretory protein (CC16) levels can reflect early lung function changes.
METHODS:
The cumulative respiratory dust exposure (CDE) levels of 1,461 coal miners were retrospectively assessed by constructed a job-exposure matrix to replace working years. Important factors affecting lung function and CC16 were selected by establishing random forest models. Subsequently, the potential of CC16 to reflect lung injury was explored from multiple perspectives. First, restricted cubic spline (RCS) models were used to compare the trends of changes in lung function indicators and plasma CC16 levels after dust exposure. Then mediating analysis was performed to investigate the role of CC16 in the association between dust exposure and lung function decline. Finally, the association between baseline CC16 levels and follow-up lung function was explored.
RESULTS:
The median CDE were 35.13 mg/m3-years. RCS models revealed a rapid decline in forced vital capacity (FVC), forced expiratory volume in the first second (FEV1), and their percentages of predicted values when CDE exceeded 25 mg/m3-years. The dust exposure level (<5 mg/m3-years) causing significant changes in CC16 was much lower than the level (25 mg/m3-years) that caused changes in lung function indicators. CC16 mediated 11.1% to 26.0% of dust-related lung function decline. Additionally, workers with low baseline CC16 levels experienced greater reductions in lung function in the future.
CONCLUSIONS
CC16 levels are more sensitive than lung indicators in reflecting early lung function injury and plays mediating role in lung function decline induced by dust exposure. Low baseline CC16 levels predict poor future lung function.
Uteroglobin/blood*
;
Humans
;
Dust/analysis*
;
Occupational Exposure/analysis*
;
Male
;
Middle Aged
;
Adult
;
Retrospective Studies
;
Lung Injury/chemically induced*
;
Coal Mining
;
Biomarkers/blood*
;
China/epidemiology*
;
Air Pollutants, Occupational
;
Female
4.Unlocking the role of wound microbiome in diabetic, burn, and germ-free wound repair treated by natural and synthetic scaffolds.
Zeyu XU ; Lixiang ZHANG ; Qinghan TANG ; Chenxi YANG ; Xiaotong DING ; Ziyu WANG ; Rizhong HUANG ; Ruihan JIANG ; Joannake MAITZ ; Huaikai SHI ; Xin YAN ; Mei DONG ; Jun CHEN ; Yiwei WANG
Acta Pharmaceutica Sinica B 2025;15(1):611-626
In current clinical practice, various dermal templates and skin substitutes are used to enhance wound healing. However, the role of wound commensal microbiome in regulating scaffold performance and the healing process remains unclear. In this study, we investigated the influence of both natural and synthetic scaffolds on the wound commensal microbiome and wound repair in three distinct models including diabetic wounds, burn injuries, and germ-free (GF) wounds. Remarkably, synthetic electrospun polycaprolactone (PCL) scaffolds were observed to positively promote microbiome diversity, leading to enhanced diabetic wound healing compared to the natural scaffolds Integra® (INT) and MatriDerm® (MAD). In contrast, both natural and synthetic scaffolds exhibited comparable effects on the diversity of the microbiome and the healing of burn injuries. In GF wounds with no detectable microorganisms, a reversed healing rate was noted showing natural scaffold (MAD) accelerated wound repair compared to the open or the synthetic scaffold (PCL) treatment. Furthermore, the response of the wound commensal microbiome to PCL scaffolds appears pivotal in promoting anti-inflammatory factors during diabetic wound healing. Our results emphasize that the wound commensal microbiome, mediated by different scaffolds plays an important role in the wound healing process.
5.Prediction of Pharmacoresistance in Drug-Naïve Temporal Lobe Epilepsy Using Ictal EEGs Based on Convolutional Neural Network.
Yiwei GONG ; Zheng ZHANG ; Yuanzhi YANG ; Shuo ZHANG ; Ruifeng ZHENG ; Xin LI ; Xiaoyun QIU ; Yang ZHENG ; Shuang WANG ; Wenyu LIU ; Fan FEI ; Heming CHENG ; Yi WANG ; Dong ZHOU ; Kejie HUANG ; Zhong CHEN ; Cenglin XU
Neuroscience Bulletin 2025;41(5):790-804
Approximately 30%-40% of epilepsy patients do not respond well to adequate anti-seizure medications (ASMs), a condition known as pharmacoresistant epilepsy. The management of pharmacoresistant epilepsy remains an intractable issue in the clinic. Its early prediction is important for prevention and diagnosis. However, it still lacks effective predictors and approaches. Here, a classical model of pharmacoresistant temporal lobe epilepsy (TLE) was established to screen pharmacoresistant and pharmaco-responsive individuals by applying phenytoin to amygdaloid-kindled rats. Ictal electroencephalograms (EEGs) recorded before phenytoin treatment were analyzed. Based on ictal EEGs from pharmacoresistant and pharmaco-responsive rats, a convolutional neural network predictive model was constructed to predict pharmacoresistance, and achieved 78% prediction accuracy. We further found the ictal EEGs from pharmacoresistant rats have a lower gamma-band power, which was verified in seizure EEGs from pharmacoresistant TLE patients. Prospectively, therapies targeting the subiculum in those predicted as "pharmacoresistant" individual rats significantly reduced the subsequent occurrence of pharmacoresistance. These results demonstrate a new methodology to predict whether TLE individuals become resistant to ASMs in a classic pharmacoresistant TLE model. This may be of translational importance for the precise management of pharmacoresistant TLE.
Epilepsy, Temporal Lobe/diagnosis*
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Animals
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Drug Resistant Epilepsy/drug therapy*
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Electroencephalography/methods*
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Rats
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Anticonvulsants/pharmacology*
;
Neural Networks, Computer
;
Male
;
Humans
;
Phenytoin/pharmacology*
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Adult
;
Disease Models, Animal
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Female
;
Rats, Sprague-Dawley
;
Young Adult
;
Convolutional Neural Networks
6.Hypoxia inducible factor-1α related mechanism and TCM intervention in process of early fracture healing.
Wenxian ZHANG ; Fusen YANG ; Qikai YAN ; Jiahui LI ; Xiaogang ZHANG ; Yiwei JIANG ; Jianye DAI
Chinese Herbal Medicines 2024;16(1):56-69
As a common clinical disease, fracture is often accompanied by pain, swelling, bleeding as well as other symptoms and has a high disability rate, even threatening life, seriously endangering patients' physical and psychological health and quality of life. Medical practitioners take many strategies for the treatment of fracture healing, including Traditional Chinese Medicine (TCM). In the early stage of fracture healing, the local fracture is often in a state of hypoxia, accompanied by the expression of hypoxia inducible factor-1α (HIF-1α), which is beneficial to wound healing. Through literature mining, we thought that hypoxia, HIF-1α and downstream factors affected the mechanism of fracture healing, as well as dominated this process. Therefore, we reviewed the local characteristics and related signaling pathways involved in the fracture healing process and summarized the intervention of TCM on these mechanisms, in order to inspirit the new strategy for fracture healing, as well as elaborate on the possible principles of TCM in treating fractures based on the HIF molecular mechanism.
7.Effects of hsa-miR-204-5p on biological behaviors of human umbilical vein endothelial cells
Yiwei ZHANG ; Ying YANG ; Shangling PAN
Chinese Journal of Pathophysiology 2024;40(2):230-237
AIM:This study aimed to investigate the effects of hsa-miR-204-5p on the viability,migration,cell cycle,and apoptosis of human vascular endothelial cells.METHODS:We established a model using the hsa-miR-204-5p mimic in the human umbilical vein endothelial cell line EA.hy926.We evaluated the effects of hsa-miR-204-5p on endothelial cell functionality through various analyses,including cell scratch,Transwell,CCK-8,cell cycle,and apopto-sis assays.Subsequently,we employed RNA sequencing and RT-qPCR to predict and verify the downstream target genes of hsa-miR-204-5p.Genes meeting the criteria of log2FC≤-0.5 and P<0.05 in RNA sequencing and those predicted as downstream target genes of hsa-miR-204-5p by the miRWalk database were intersected.Furthermore,we conducted Gene Ontology(GO)and Kyoto Encyclopedia of Genes and Genomes(KEGG)enrichment analyses.RESULTS:Overexpres-sion of hsa-miR-204-5p inhibited the viability and migration of EA.hy926 cells,and reduced their apoptotic rate and the proportion of cells in S phase.Enrichment analyses showed that downstream target genes of hsa-miR-204-5p,including MAPT,PPP3R1,PRKACB,PTPRR,MAP2K4,CACNA2D2 and RPS6KA6,exhibited enrichment in MAPK signaling pathway.RT-qPCR results revealed that the mRNA expression levels of MAPT and MAP2K4,especially MAPT,were sig-nificantly down-regulated after overexpression of hsa-miR-204-5p.CONCLUSION:The findings suggest that hsa-miR-204-5p suppresses the biological behaviors of endothelial cells,such as viability,migration,and apoptosis,likely through the inhibition of MAPT/MAPK signaling pathway.
8.Nomogram model based on clinical and ultrasonic characteristics for diagnosing lymphoma
Yiwei SONG ; Manxi LI ; Yang LI ; Lin LU ; Linlin ZHANG ; Yao FU ; Wei WANG ; Zhongyue LIN ; Yu SONG
Chinese Journal of Interventional Imaging and Therapy 2024;21(3):170-174
Objective To observe the value of nomogram model based on clinical and ultrasonic characteristics for diagnosing lymphoma.Methods Data of 176 patients with suspected lymphoma due to enlarged superficial lymph nodes were retrospective analyzed.The patients were divided into lymphoma group(n=90,invasive subgroup[n=40]and non-invasive subgroup[n=50])or non-lymphoma group(n=86)based on pathological results.Clinical and ultrasonic data were compared between groups and subgroups.Multivariate logistic regression was used to screen the independent risk factors of lymphoma,and then a nomogram was constructed.Receiver operating characteristic curves were drawn to evaluate the efficacy of conventional ultrasound,conventional contrast-enhanced ultrasound(C-CEUS),high-frame-rate contrast-enhanced ultrasound(H-CEUS)and nomogram for diagnosing lymphoma.Results Multivariate logistic regression analysis revealed that age>59 years,cortical stripe/reticular hyperecho of lymph nodes and"centrifugal firework"enhancement pattern showed with H-CEUS were all independent risk factors of lymphoma(all P<0.05).Taken 59 years as the best cut-off value of patients'age,the sensitivity,specificity,accuracy and the area under the curve(AUC)for diagnosing lymphoma was 67.78%,58.10%,63.06%and 0.630,respectively.The sensitivity,specificity,accuracy and AUC of cortical stripe/reticular hyperecho of lymph nodes for diagnosing lymphoma was 73.33%,58.10%,65.91%and 0.657,respectively,while of"centrifugal firework"pattern enhancement in H-CEUS was 77.78%,69.80%,73.86%and 0.738,respectively.AUC of conventional ultrasound,C-CEUS,H-CEUS and nomogram for diagnosing lymphoma was 0.657,0.540,0.738 and 0.844,respectively.Conclusion Nomogram model based on clinical and ultrasonic characteristics had good diagnostic efficacy for lymphoma,and"centrifugal firework"pattern enhancement in H-CEUS could be regarded as the specific characteristic of lymphoma.
9.Dosimetric comparison of IMRT versus VMAT for advanced nasopharyngeal carcinoma using voxel-based method
Fenglei DU ; Yiwei YANG ; Kainan SHAO
Chinese Journal of Medical Physics 2024;41(2):139-144
Objective To identify the exact locations of the brain being irradiated in advanced nasopharyngeal carcinoma(NPC)patients during radiotherapy,and to analyze the differences in brain dose distribution between advanced NPC patients treated with intensity-modulated radiotherapy(IMRT)and volumetric modulated arc therapy(VMAT).Methods Based on the CT brain template provided by the Montreal Neurological Institute,the brain dose distribution was analyzed with voxel-based method.Results For advanced NPC patients,VMAT plans did not demonstrate superiority in normal brain tissue sparing,while IMRT performed better,with advantages observed in regions such as the brainstem,the posterior lobe of the cerebellum,the anterior lobe of the cerebellum,temporal lobes,occipital lobes,limbic lobes,and certain areas of the subcortical regions.Conclusion IMRT is advantageous over VMAT in protecting the normal brain tissues in advanced NPC patients.
10.Survey of Disease Cognition in Patients with Endometriosis and Effect Evaluation of TCM Chronic Disease Management
Xinchun YANG ; Weiwei SUN ; Yong LIU ; Meiru BAO ; Ting XIONG ; Zhe LIU ; Yanhuan YANG ; Yiwei YU ; Ruihua ZHAO
Chinese Journal of Information on Traditional Chinese Medicine 2024;31(4):157-163
Objective To understand cognition level and treatment intention of patients with endometriosis(EMs);To evaluate the effects of TCM chronic disease management on EMs patients.Methods The disease cognition level and treatment intention of 1 895 EMs patients from October 2020 to December 2021 in 19 provinces,autonomous regions and municipalities were analyzed through cross-sectional investigation.The cognitive effect of chronic disease management of TCM on 801 patients with EMs from 6 Grade A hospitals in Beijing was evaluated by self-control study.Results The cognition level of EMs patients for the disease was improved with the increase of educational background.Patients generally believed that EMs was a chronic disease,requiring regular review and long-term management.The proportion of patients with high school education or below,junior college education,bachelor degree or above who knew the possibility of malignant changes in EMs was less,only 32.3%,41.6%and 47.7%,respectively.The awareness rate of patients with high school education or below for recurrence after EMs conservative surgery was 46.9%,lower than that of those with junior college education(66.8%)and bachelor degree or above(72.7%).Among the patients with dietary contraindications,the proportion of patients with high school education or below,junior college education,bachelor degree or above who knew the contraindication of the forest frog oil was less,only 20.7%,30.3%and 32.9%,respectively.In the aspect of life adjustment,the awareness of patients was generally high.EMs patients mainly recognized the disease through face-to-face communication with gynecologists.Only 34.4%of patients with high school education or below learned about EMs through WeChat public accounts,APPs and other new media,which was lower than those with junior college education(48.6%)and bachelor degree or above(55.4%).EMs patients generally tend to be treated in comprehensive hospitals,with high acceptance of TCM treatment,mainly TCM decoction,and low acceptance of TCM appropriate technology.After 1 year of TCM chronic disease management,the disease awareness of EMs patients was significantly improved compared with before management,with statistical significance(P<0.05).Conclusion EMs patients with different educational backgrounds have different cognition of the disease,and each has different emphasis.Education and popularization should be carried out according to their knowledge blind spots.Chronic disease management of TCM can improve the disease cognition level of EMs patients.


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