1.Estimation of lifetime attributable risk of thyroid cancer from radiation in chest computed tomography examinations
Jiaohan NIU ; Jun YU ; Shengying YAO ; Zhijun GAO
Chinese Journal of Radiological Health 2026;35(1):62-66
Objective To estimate the lifetime attributable risk (LAR) of thyroid cancer due to radiation in individuals undergoing chest computed tomography (CT) examinations. Methods Scanning parameters were retrospectively collected from DICOM files of 660 individuals who underwent chest CT scans between 2022 and 2024. Individuals were stratified by age and sex. Size-specific dose estimates were calculated using a formula based on the volume CT dose index for each individual. The radiation doses received by the thyroid were estimated. The cancer risk prediction model from the US National Academy of Sciences report on the Biological Effects of Ionizing Radiation was referenced to predict the LAR of thyroid cancer. Results The LAR of thyroid cancer for males/females was 25.170/100 000 and 140.177/100 000 in the ≥ 0 and<5 years of age group, 21.779/100 000 and 102.498/100 000 in the ≥5 and <10 years of age group, 22.987/100 000 and 128.934/100 000 in the ≥10 and <15 years of age group, and 4.979/100 000 and 12.490/100 000 in the ≥15 years of age group. A Spearman correlation analysis showed that age was highly correlated with volume CT dose index, size-specific dose estimates, radiation dose received by the thyroid, and thyroid cancer LAR, with correlation coefficients of 0.887, 0.737, 0.737, and −0.41 (P<0.01), respectively. Sex was correlated with radiation dose received by the thyroid and thyroid cancer LAR, with correlation coefficients of 0.179 and 0.441 (P<0.01), respectively. Conclusion Chest CT scan leads to an increased LAR of thyroid cancer. Appropriate protective measures for the thyroid should be considered during chest CT scan to reduce the impact of radiation on the thyroid.
2.Effect of Berberine-Baicalin Combination on Fecal Microbiota Transplantation-induced Type 2 Diabetes Mellitus Due to Internal Accumulation of Dampness-heat in Mice from Perspectives of Gut Microbiota and Metabolomics
Mengjie CHEN ; Yimin LIU ; Yun ZHOU ; Keming YU ; Min XIA ; Hongning LIU ; Yanhua JI ; Zhijun ZENG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):52-64
ObjectiveTo investigate the mechanisms by which the combination of berberine (BBR) and baicalin (BAI) ameliorates type 2 diabetes mellitus (T2DM) due to internal accumulation of dampness-heat from the perspectives of gut microbiota and metabolomics. MethodsAntibiotics were used to induce pseudo-sterile mice. Thirty pseudo-sterile mice were randomized into a normal fecal microbiota transplantation group (n=10) and a T2DM (syndrome of internal accumulation of dampness-heat) fecal microbiota transplantation group (n=20). The mice were then administrated with suspensions of fecal microbiota from healthy volunteers and a patient with T2DM due to internal accumulation of dampness-heat by gavage, respectively. Each mouse received 200 µL suspension every other day for a total of 15 times to reshape the gut microbiota. The T2DM model mice were then assigned into a model group (n=8) and a BBR-BAI group (n=11). BBR was administrated at a dose of 200 mg·kg-1, and BAI was administrated in a ratio of BBR-BAI 10∶1 based on preliminary research findings. The administration lasted for 8 consecutive weeks. Fasting blood glucose (FBG), glycated hemoglobin (HbA1c), insulin (INS), triglycerides (TG), total cholesterol (CHOL), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), aspartate aminotransferase (AST), and alanine aminotransferase (ALT) levels were measured to evaluate the effects of the BBR-BAI combination on glucose and lipid metabolism and liver function in T2DM mice. Hematoxylin-eosin staining was employed to observe pathological changes in the colon tissue. The expression of claudin-1, zonula occludens-1 (ZO-1), and occludin in the colon tissue was determined by Western blot. Real-time quantitative polymerase chain reaction(Real-time PCR) was employed to assess the levels of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and interleukin-6 (IL-6) in the colon tissue. The fecal microbiota composition and differential metabolites were analyzed by 16S rRNA sequencing and ultra-high performance liquid chromatography-quadrupole-time of flight tandem mass spectrometry (UPLC-Q-TOF-MS), respectively. ResultsThe BBR-BAI combination lowered the FBG, HbA1c, and INS levels (P<0.05, P<0.01) and alleviated insulin resistance (P<0.01) in T2DM mice. Additionally, BBR-BAI elevated the levels of ZO-1, occludin, and claudin-1 (P<0.05, P<0.01) and down-regulated the expression levels of TNF-α, IL-1β, and IL-6 in the colon (P<0.05, P<0.01). The results of 16S rRNA sequencing showed that BBR-BAI increased the relative abundance of Ligilactobacillus, Phascolarctobacterium, and Akkermansia (P<0.05), while significantly decreasing the relative abundance of Alistipes, Odoribacter, and Colidextribacter (P<0.05). UPLC-Q-TOF-MS identified 28 differential metabolites, which were primarily involved in arachidonic acid metabolism and α-linolenic acid metabolism. ConclusionBBR-BAI can ameliorate T2DM due to internal accumulation of dampness-heat by modulating the relative abundance of various bacterial genera in the gut microbiota and the expression of fecal metabolites.
3.Mechanism of Wendantang in Intervention of ApoE-/- Hyperlipidemic Mice Based on Liver Metabolomics
Yun ZHOU ; Songren YU ; Lu ZHANG ; Wenting LIN ; Keming YU ; Min XIA ; Zhijun ZENG ; Yanhua JI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(10):1-9
ObjectiveTo explore the mechanism of action of Wendantang on ApoE-/- hyperlipidemic mice using non-targeted metabolomics technology. MethodsMale C57BL/6J mice served as the normal control group (n=6), and they were fed with regular chow, while male ApoE-/- mice constituted the high-fat group (n=30), and they were fed with a 60% high-fat diet. After 11 weeks of model establishment, the mice in the high-fat group were randomly divided into the model group, simvastatin group (3.3 mg·kg-1), and high-dose, medium-dose, and low-dose groups of Wendantang (26, 13, 6.5 g·kg-1, respectively, in terms of crude drug amount), with six mice in each group. The normal control group and the model group were gavaged with an equivalent volume of normal saline, and all groups continued to be fed their respective diets, receiving daily medication for 10 weeks with weekly body weight measurements. Serum levels of total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), free fatty acids (NEFA), blood glucose (GLU), alanine aminotransferase (ALT), and aspartate aminotransferase (AST) were detected in the mice. Pathological changes in liver tissue were observed using hematoxylin-eosin (HE) staining, and ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS/MS) was employed for metabolomic analysis of mouse liver tissue. ResultsCompared to the normal control group, the model group exhibited significantly increased body weight, blood lipid levels, and liver function (P<0.05, P<0.01), with disordered liver tissue structure, swollen hepatocytes, and accompanying vacuolar fatty degeneration and inflammatory cell infiltration. Compared to the model group, the simvastatin group and Wendantang groups showed significantly reduced body weight, TG, NEFA, GLU, ALT, and AST levels (P<0.05, P<0.01), with a significant increase in HDL-C levels (P<0.05, P<0.01), demonstrating a dose-dependent effect. The lesion of the liver tissue section was obviously improved after administration, tending towards a normal liver tissue morphology. Analysis of liver metabolites revealed 86 differential metabolites between the normal control group and the model group, with the high-dose group of Wendantang able to regulate 56 of these metabolites. Twenty-two differential metabolites associated with hyperlipidemia were identified, mainly including chenodeoxycholic acid, hyocholic acid, taurine, glycocholic acid, dihydroceramide, hydroxy sphingomyelin C14∶1, arachidonic acid, and linoleic acid, enriching 22 metabolic pathways, with 4 being the most significant (P<0.05), namely primary bile acid biosynthesis, sphingolipid metabolism, unsaturated fatty acid biosynthesis, and linoleic acid metabolism pathways. ConclusionWendantang can improve blood lipid levels and liver function in ApoE-/- hyperlipidemic mice, which may be related to the regulation of primary bile acid biosynthesis, sphingolipid metabolism, unsaturated fatty acid biosynthesis, and linoleic acid metabolism pathways.
4.Effect of timing of minimally invasive puncture and drainage on the outcome of patients with hypertensive intracerebral hemorrhage in basal ganglia region
Yanhua WANG ; Teng XIE ; Xiaoping YU ; Zhijun HUANG ; Wen LIU
International Journal of Cerebrovascular Diseases 2025;33(2):108-112
Objective:To investigate the correlation between the timing of minimally invasive puncture drainage and the outcome of patients with hypertensive intracerebral hemorrhage (HICH) in the basal ganglia region.Methods:Patients with HICH in the basal ganglia region underwent minimally invasive puncture and drainage at Hanchuan People's Hospital from January 2019 to September 2023 were selected. According to the timing of surgery, the patients were divided into onset to surgery time ≤12-hour group and >12-hour group. According to the modified Rankin Scale score at 90 days after onset, they were divided into a good outcome group (0-2) and a poor outcome group (>2). Multivariate logistic regression analysis was used to evaluate the independent influencing factors of functional outcome. Results:A total of 150 patients were included, with 78 males (52.00%), aged 53.15±4.35 years (range, 40-75 years). Eighty-six patients (57.33%) underwent surgery within 12 hours after onset, while 64 (42.67%) underwent surgery after 12 hours; 97 patients (64.67%) had good outcome, while 53 (35.33%) had poor outcome. Univariate analysis showed that compared with the onset to surgery time ≤12-hour group, the onset to surgery time >12-hour group had a longer time from onset to admission, a larger postoperative hematoma volume, longer hospitalization time, lower postoperative hematoma clearance rate, and a higher proportion of patients with poor outcome and deaths within 90 days (all P<0.05). Compared with the good outcome group, the poor outcome group had a longer time from onset to admission, higher baseline National Institutes of Health Stroke Scale (NIHSS) scores, larger baseline and postoperative hematoma volumes, and a higher proportion of patients with onset to surgery time >12 hours. However, the postoperative hematoma clearance rate, baseline Glasgow Coma Scale (GCS) score, and the proportion of patients with baseline GCS score >8 was lower in the poor outcome group (all P<0.05). Multivariate logistic regression analysis showed that the higher baseline NIHSS score (odds ratio [ OR] 1.847, 95% confidence interval [ CI] 1.362-2.503; P=0.001) and the time from onset to surgery >12 hours (compared with ≤12 hours: OR 1.347, 95% CI 1.058-1.715; P=0.016) were the independent risk factors for poor outcome, while higher baseline GCS scores ( OR 0.723, 95% CI 0.558-0.937; P=0.006) and higher postoperative hematoma clearance rates ( OR 0.615, 95% CI 0.462-0.819; P=0.004) were the independent protective factors for good outcome. Conclusion:In patients with HICH in basal ganglia, it is ideal to perform minimally invasive puncture and drainage within 12 h after onset, and the postoperative recovery is relatively better.
5.Studies on the Influence of Three-level Assistance Model Based on Narrative Nursing Theory on the Mental Health of Medical Staff
Zhijun REN ; Shuping GAO ; Yumei ZHOU ; Yu XI ; Ping HE
Journal of Kunming Medical University 2024;45(1):187-192
Objective To explore the impact of the three-level assistance model based on the narrative nursing theory on the mental health status of medical staff.Methods 140 medical staff working in a third class hospital in Xiangyang City were selected as the research object.The three-level assistance model based on narrative nursing theory was used to intervene them from September 2021 to July 2022.The symptom self-assessment scales before and after the intervention were compared.Results Before the intervention,the total score of SCL-90(156.37±32.56)points and the scores of various symptom factors of medical staff were higher;After the intervention,the total score of SCL-90(133.35±43.48)points and the scores of various symptom factors were lower than those before the intervention and the difference was statistically significant(P<0.05).Conclusion The three-level assistance model based on narrative nursing theory can reduce the total score of SCL-90 and the scores of various symptom factors,improve the mental health status and mental health level.
6.High STING expression exacerbates renal ischemia-reperfusion injury in mice by regulating the TLR4/NF-κB/NLRP3 pathway and promoting inflammation and apoptosis
Huaixiang TAO ; Jinguang LUO ; Zhiyuan WEN ; Genming YU ; Xiao SU ; Xinwei WANG ; Han GUAN ; Zhijun CHEN
Journal of Southern Medical University 2024;44(7):1345-1354
Objective To investigate renal expression level of STING in mice with renal ischemia-reperfusion injury(IRI)and its regulatory role in IRI.Methods C57BL/6 mice were divided into sham operation group,IRI(induced by clamping the renal artery)model group,IRI+DMSO treatment group,and IRI+SN-011 treatment group.Serum creatinine and blood urea nitrogen of the mice were analyzed,and pathological changes in the renal tissue were assessed with PAS staining.RT-qPCR,ELISA,Western blotting,and immunohistochemistry were used to detect the expression levels of STING,KIM-1,Bcl-2,Bax,caspase-3,TLR4,P65,NLRP3,caspase-1,CD68,MPO,IL-1β,IL-6,and TNF-α in the renal tissues.In the cell experiment,HK-2 cells exposed to hypoxia-reoxygenation(H/R)were treated with DMSO or SN-011,and cellular STING expression levels and cell apoptosis were analyzed using RT-qPCR,Western blotting or flow cytometry.Results In C57BL/6 mice,renal IRI induced obvious renal tissue damage,elevation of serum creatinine and blood urea nitrogen levels and renal expression levels of KIM-1,STING,TLR4,P65,NLRP3,caspase-1,caspase-3,Bax,CD68,MPO,IL-1β,IL-6,and TNF-α,and reduction of Bcl-2 expression level.Treatment of the mouse models with SN-011 for inhibiting STING expression significantly alleviated these changes.In HK-2 cells,H/R exposure caused significant elevation of cellular STING expression and obviously increased cell apoptosis rate,which was significantly lowered by treatment with SN-011.Conclusion Renal STING expression is elevated in mice with renal IRI to exacerbate renal injury by regulating the TLR4/NF-κB/NLRP3 pathway and promoting inflammation and apoptosis in the renal tissues.
7.Research on the Construction Scenarios and Evaluation of Pediatric Smart Wards
Siyuan SHEN ; Jiali YU ; Zhijun CHEN ; Hansong WANG
Chinese Hospital Management 2024;44(10):70-73
Objective To explore the feasibility,importance,and pediatric characteristics of the construction modules and scenarios of pediatric smart wards,as well as the priority level of construction in different scenarios,in order to provide a basis for the phased construction of pediatric smart ward scenarios.Methods A systematic evaluation of the scenario construction of smart wards was conducted through literature review,key informant surveys.Results By systematically scoring and ranking the construction of 15 projects and 57 application scenarios under the three modules of smart management,smart services,and smart healthcare,it is clear that in the practice of pediatric smart wards,priority should be given to the construction of certain scenarios based on the high and low scores and actual conditions,and gradually promote the construction of other scenarios.Conclusion The pediatric smart ward scene has both the universality of traditional smart ward construction needs and its own disciplinary characteristics.Therefore,in the construction process,it is necessary to widely understand the actual needs and carry out targeted smart scene construction that is in line with pediatric characteristics.
8.Research on the Construction Scenarios and Evaluation of Pediatric Smart Wards
Siyuan SHEN ; Jiali YU ; Zhijun CHEN ; Hansong WANG
Chinese Hospital Management 2024;44(10):70-73
Objective To explore the feasibility,importance,and pediatric characteristics of the construction modules and scenarios of pediatric smart wards,as well as the priority level of construction in different scenarios,in order to provide a basis for the phased construction of pediatric smart ward scenarios.Methods A systematic evaluation of the scenario construction of smart wards was conducted through literature review,key informant surveys.Results By systematically scoring and ranking the construction of 15 projects and 57 application scenarios under the three modules of smart management,smart services,and smart healthcare,it is clear that in the practice of pediatric smart wards,priority should be given to the construction of certain scenarios based on the high and low scores and actual conditions,and gradually promote the construction of other scenarios.Conclusion The pediatric smart ward scene has both the universality of traditional smart ward construction needs and its own disciplinary characteristics.Therefore,in the construction process,it is necessary to widely understand the actual needs and carry out targeted smart scene construction that is in line with pediatric characteristics.
9.Research on the Construction Scenarios and Evaluation of Pediatric Smart Wards
Siyuan SHEN ; Jiali YU ; Zhijun CHEN ; Hansong WANG
Chinese Hospital Management 2024;44(10):70-73
Objective To explore the feasibility,importance,and pediatric characteristics of the construction modules and scenarios of pediatric smart wards,as well as the priority level of construction in different scenarios,in order to provide a basis for the phased construction of pediatric smart ward scenarios.Methods A systematic evaluation of the scenario construction of smart wards was conducted through literature review,key informant surveys.Results By systematically scoring and ranking the construction of 15 projects and 57 application scenarios under the three modules of smart management,smart services,and smart healthcare,it is clear that in the practice of pediatric smart wards,priority should be given to the construction of certain scenarios based on the high and low scores and actual conditions,and gradually promote the construction of other scenarios.Conclusion The pediatric smart ward scene has both the universality of traditional smart ward construction needs and its own disciplinary characteristics.Therefore,in the construction process,it is necessary to widely understand the actual needs and carry out targeted smart scene construction that is in line with pediatric characteristics.
10.Research on the Construction Scenarios and Evaluation of Pediatric Smart Wards
Siyuan SHEN ; Jiali YU ; Zhijun CHEN ; Hansong WANG
Chinese Hospital Management 2024;44(10):70-73
Objective To explore the feasibility,importance,and pediatric characteristics of the construction modules and scenarios of pediatric smart wards,as well as the priority level of construction in different scenarios,in order to provide a basis for the phased construction of pediatric smart ward scenarios.Methods A systematic evaluation of the scenario construction of smart wards was conducted through literature review,key informant surveys.Results By systematically scoring and ranking the construction of 15 projects and 57 application scenarios under the three modules of smart management,smart services,and smart healthcare,it is clear that in the practice of pediatric smart wards,priority should be given to the construction of certain scenarios based on the high and low scores and actual conditions,and gradually promote the construction of other scenarios.Conclusion The pediatric smart ward scene has both the universality of traditional smart ward construction needs and its own disciplinary characteristics.Therefore,in the construction process,it is necessary to widely understand the actual needs and carry out targeted smart scene construction that is in line with pediatric characteristics.

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