1.Current status and ethical challenges of artificial intelligence in liver transplantation surgery
Mengnan HOU ; Xudong LIU ; Xiaowei MO ; Wenting LI ; Zan LIU
Chinese Journal of General Surgery 2025;34(7):1505-1513
Liver transplantation is a crucial treatment for end-stage liver disease,yet its complexity continues to limit clinical application.With the development of the internet and big data,artificial intelligence(AI)technologies have gradually expanded their use in liver transplantation surgery,covering donor liver evaluation,organ allocation,robot-assisted surgery,and postoperative management,demonstrating significant advantages.However,the application of AI also raises a series of ethical issues,notably fairness in resource allocation,conflicts between technical limitations and the principle of non-maleficence,ambiguous responsibility attribution,patient privacy security,and informed consent.This article systematically reviews the current applications of AI in liver transplantation surgery and the related ethical challenges,aiming to provide a reference for its rational use and sustainable development.
2.Mechanism of Shanggan granules in suppressing the TLR4/NF-κB signaling pathway to alleviate the pulmonary inflammatory response in H1N1-infected mice
Mao LI ; Zhihong GUO ; Linjie LIU ; Mengnan ZHANG ; Xiuyuan LI
Chinese Journal of Comparative Medicine 2025;35(8):58-66
Objective To explore the mechanism of Shanggan granules in suppressing pulmonary inflammation in mice infected with H1N1 influenza virus.Methods A mouse model of pulmonary influenza virus infection was established by nasal inoculation with H1N1 influenza virus.Mice were divided into a normal control group,model group,positive control group,and low-,medium-,and high-dose Shanggan granules groups.Mice were treated for 7 days and then sacrificed,and the body weight and lung wet weight were measured.Pathological changes in the lung tissues were detected by hematoxylin/eosin(HE)staining.Tumor necrosis factor-α(TNF-α),interleukin(IL)-6,IL-8,and transforming growth factor-β(TGF-β)levels in lung tissues were detected by enzyme-linked immunosorbent assay,and superoxide dismutase(SOD),glutathione peroxidase(GSH-Px),and malondialdehyde(MDA)were detected using appropriate kits.Toll-like receptor 4(TLR4)/nuclear factor-κB(NF-κB)inflammatory signaling pathways were detected by real-time polymerase chain reaction,and TANK-binding kinase 1(TBK1)/interferon regulatory factor(IRF)signaling pathway proteins were detected by Western blot.Results Both Shanggan granules and oseltamivir phosphate reduced the lung wet weight(P<0.05,P<0.001)in mice infected with influenza virus H1N1 compared with the model group,decreased the infiltration of inflammatory cells in lung tissue,reduced levels of the inflammatory factors TNF-α,IL-6,IL-8,and TGF-β(P<0.05,P<0.01,P<0.001),decreased levels of SOD and GSH-Px in lung tissue(P<0.05,P<0.01),and increased MDA levels(P<0.05,P<0.01).Shanggan granules and oseltamivir phosphate also reduced TLR4,MyD88,and p38 mRNA levels(P<0.05,P<0.01)and expression of TBK1/IRF3/7/NF-κB signaling pathway proteins(P<0.05,P<0.01,P<0.001).Conclusions Shanggan granules may effectively reduce lung injury,lung inflammation,and oxidative stress,via a mechanism related to the down-regulation of TLR4/NF-κB inflammatory signaling pathways.
3.Effects of toric intraocular lens combined with capsular tension rings on visual acuity in patients with high myopia complicated by corneal astigmatism and cataract
Mengnan HOU ; Yuan LIU ; Run'an SUN
Chinese Journal of Primary Medicine and Pharmacy 2025;32(11):1613-1617
Objective:To investigate the efficacy of toric intraocular lens (IOL) combined with capsular tension rings (CTR) in the treatment of high myopia complicated by corneal astigmatism and cataract and its effects on visual acuity.Methods:A retrospective study was conducted on 80 eyes of 80 patients with high myopia complicated by corneal astigmatism and cataract who received treatment at Baoji People's Hospital from December 2021 to December 2023. Based on the treatment methods, the patients were divided into two groups. The study group was treated with toric IOL combined with CTR, while the control group was treated with toric IOL only. The best corrected visual acuity, corneal astigmatism, visual quality, the degree of intraocular lens rotation, and the incidence of postoperative complications were compared between the two groups before and after surgery.Results:After surgery, the best corrected visual acuity and corneal astigmatism in the study group were significantly better than those in the control group [(0.18 ± 0.24) LogMAR vs. (0.23 ± 0.16) LogMAR, t = 4.05, P < 0.001; (0.73 ± 0.22) D vs. (0.45 ± 0.26) D, t = 6.79, P = 0.001]. At 1 month post-surgery, the visual quality scores in the study group were significantly higher than those in the control group ( t = 5.36, 6.35, 7.14, 4.25, all P < 0.05). At 1 week, 1 month, 3 months, and 6 months after surgery, the degrees of intraocular lens rotation in the study group were less than those in the control group ( t = 5.59, 2.70, 4.22, 6.10, all P < 0.05). At 6 months post-surgery, the incidence of complications in the study group was lower than that in the control group [20.00% (8/40) vs. 45.00% (18/40), χ2 = 5.70, P = 0.017]. Conclusions:Toric IOL combined with CTR treatment can effectively improve the visual function in patients with high myopia complicated by corneal astigmatism and cataract. This approach reduces the incidence of postoperative complications and minimizes astigmatism, proving to be both safe and effective.
4.Exploration on the Molecular Mechanism of Bitter-cold Property of Scutellaria Radix Based on Endogenous Metabolites
Xing LIU ; Qi SONG ; Ran XIE ; Jing MENG ; Mengnan ZANG ; Huanhuan ZHANG ; Haijin SONG ; Miao ZHANG ; Hairu HUO ; Feng SUI
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(4):128-134
Objective To identify biomarkers that characterize its bitter-cold properties of Scutellaria Radix on the basis of evaluating its cold and hot properties,as well as possible metabolic pathways and related targets;To explore its molecular mechanism.Methods Totally 40 mice were randomly divided into a control group and a treatment group,and were orally administered with normal saline and Scutellaria Radix decoction,respectively,for 4 consecutive days.The cold and hot plate differential method was used to evaluate the cold and hot tendencies of the mice;UPLC-MS/MS technology was used to analyze mouse blood samples,differential metabolites were screened using principal component analysis,partial least squares discriminant analysis and orthogonal partial least squares discriminant analysis methods,and metabolic pathway analysis was performed;network modular analysis of differential metabolites was performed using Cytoscape 3.9.0 software to identify potential molecular targets.Results On the second day of administration,the anal temperature of mice in the treatment group decreased significantly compared to the control group(P<0.01);in the cold and hot tendency test,the mice in the treatment group showed an overall increase in high-temperature tendency and a higher proportion of high-temperature zone retention.There was a statistically significant difference(P<0.01,P<0.05)between the treatment group and the control group on the 2nd and 3rd day of treatment;the pattern recognition analysis of serum metabolome data showed that the serum samples of the treatment group and the control group could be completely separated,and a total of 14 differential metabolites were screened out;metabolic pathway analysis identified 16 related pathways,including unsaturated fatty acid biosynthesis,linoleic acid metabolism,citric acid cycle(TCA cycle),arachidonic acid metabolism,glycine,serine and threonine metabolism,steroid hormone biosynthesis,etc.;a total of 16 modules were obtained through network modular analysis,among which the arachidonic acid metabolism pathway and linoleic acid metabolism pathway modules were larger;the nodal degree values of arachidonic acid and linoleic acid were greater than the mean,involving arachidonic acid metabolism and linoleic acid metabolism pathways;by screening 26 genes associated with the cytochrome P450 enzyme system were obtained.Conclusion Scutellaria Radix may regulate the body's energy metabolism,achieve its biological effects,and characterize its medicinal properties by intervening in metabolic pathways such as arachidonic acid and linoleic acid.
5.Research Progress on the Prevention and Treatment of Intestinal Ischemia-reperfusion Injury with Traditional Chinese Medicine
Ke WU ; Zhengyu ZHANG ; Qiulin WANG ; Mengnan LIU ; Wei REN ; Wubin GUO
World Science and Technology-Modernization of Traditional Chinese Medicine 2025;27(7):1801-1814
Ischemic bowel disease(IBD)is a prevalent intestinal vascular disease that poses a serious threat to patients' lives and health.Tthe key pathological process of ischemic bowel disease is intestinal ischemia-reperfusion(II/R)injury.If not diagnosed and treated in a timely manner,it can lead to life-threatening conditions such as peritonitis,intestinal gangrene perforation,and multiple organ dysfunction.Current treatments primarily focus on symptomatic and surgical interventions,lacking targeted pharmacological therapies.A substantial body of research has found that traditional Chinese medicine(TCM)exhibits a protective effect against II/R injury.This review systematically elaborated on the mechanisms by which various TCM bioactive components,including Astragaloside IV,Ginsenosides,Salvianolic acids,and Tetramethylpyrazine,as well as compound formulations such as Shenqi injection,Taoren Chengqi decoction,and Sini decoction ameliorate II/R injury.These findings provide novel research perspectives for developing TCM-based therapeutics for IBD.
6.Effects of persuasion system-based health intervention in orthodontic patients treated with clear aligner
Yuqun WANG ; Danyan HU ; Zhaolan GUAN ; Jianlan ZHANG ; Mengnan ZHANG ; Jia LIU ; Hu LI
Chinese Journal of Modern Nursing 2025;31(2):233-238
Objective:To explore the effect of persuasion system-based health intervention in orthodontic patients treated with clear aligners.Methods:From January 2022 to December 2023, convenience sampling was used to select patients treated with clear aligners at the Department of Orthodontics in Affiliated Stomatological Hospital of Nanjing Medical University as participants. Patients admitted from January to December 2022 were included in the control group ( n=60), and those admitted from January to December 2023 were included in the observation group ( n=59). The control group received health guidance based on the theory of knowledge, attitude, and practice. Based on the control group, the observation group added health intervention with the assistance of a persuasion system. After one year of intervention, the oral care self-efficacy, enamel demineralization, periodontal health index (gingival index, plaque index, sulcus bleeding index, probing depth), and restart rate of both groups were evaluated. Results:After the intervention, the scores of the Self-efficacy Scale for Self-care in the observation group were higher than those in the control group, and the difference was statistically significant [ (71.03±1.97) vs. (57.82±2.58), P<0.01]. The enamel demineralization rate, periodontal health index (plaque index, gingival index, sulcus bleeding index, probing depth) score, and restart rate in observation group were all lower than those in control group ( P<0.05) . Conclusions:Persuasion system system-based health intervention can improve the oral care self-efficacy of orthodontic patients treated with clear aligners, alleviate oral health issues during clear aligners, and reduce the restart rate of clear aligner patients.
7.A qualitative study on the status of back patting and sputum drainage nursing by Neurological Intensive Care Unit nurses and the design requirements for a nursing robot
Fang LIU ; Aiying MEI ; Yan MA ; Mengnan LI ; Lichao GONG ; Xin ZHANG
Chinese Journal of Modern Nursing 2025;31(9):1189-1194
Objective:To explore the current status of back patting and sputum drainage nursing performed by nurses in the Neurological Intensive Care Unit (NICU) and their design requirements for a nursing robot, providing a reference for the design of nursing robots for back patting and sputum drainage.Methods:This descriptive qualitative study employed a purposive sampling method. From January to February 2024, semi-structured interviews were conducted with 15 nurses from the NICU of Xuanwu Hospital, Capital Medical University. Data were analyzed using Colaizzi 7-step analysis method.Results:A total of three major issues were identified regarding the current practice of back patting and sputum drainage nursing by NICU nurses: heavy workload and time-consuming; difficulties in patient positioning and maintenance; deficiencies in nursing care. The design requirements for a back patting and sputum drainage nursing robot were categorized into two main themes with 10 sub-themes: functional requirements (turning function, supporting function, intelligent recognition function, abnormality detection with alarm or pause feature, and evaluation of post-percussion effectiveness) ; design requirements (basic functional design, support component design, percussion component design, coordination between support and percussion functions, and overall structural design) .Conclusions:Understanding the design requirements of NICU nurses for a back patting and sputum drainage nursing robot provides valuable insights for developing a safe, scientific, reasonable, and effective robotic system.
8.Research Progress on the Prevention and Treatment of Intestinal Ischemia-reperfusion Injury with Traditional Chinese Medicine
Ke WU ; Zhengyu ZHANG ; Qiulin WANG ; Mengnan LIU ; Wei REN ; Wubin GUO
World Science and Technology-Modernization of Traditional Chinese Medicine 2025;27(7):1801-1814
Ischemic bowel disease(IBD)is a prevalent intestinal vascular disease that poses a serious threat to patients' lives and health.Tthe key pathological process of ischemic bowel disease is intestinal ischemia-reperfusion(II/R)injury.If not diagnosed and treated in a timely manner,it can lead to life-threatening conditions such as peritonitis,intestinal gangrene perforation,and multiple organ dysfunction.Current treatments primarily focus on symptomatic and surgical interventions,lacking targeted pharmacological therapies.A substantial body of research has found that traditional Chinese medicine(TCM)exhibits a protective effect against II/R injury.This review systematically elaborated on the mechanisms by which various TCM bioactive components,including Astragaloside IV,Ginsenosides,Salvianolic acids,and Tetramethylpyrazine,as well as compound formulations such as Shenqi injection,Taoren Chengqi decoction,and Sini decoction ameliorate II/R injury.These findings provide novel research perspectives for developing TCM-based therapeutics for IBD.
9.A network meta-analysis on therapeutic effect of different types of exercise on knee osteoarthritis patients
Jia LI ; Qianru LIU ; Mengnan XING ; Bo CHEN ; Wei JIAO ; Zhaoxiang MENG
Chinese Journal of Tissue Engineering Research 2025;29(3):608-616
OBJECTIVE:The main clinical manifestations of knee osteoarthritis are pain,swelling,stiffness,and limited activity,which have a serious impact on the life of patients.Exercise therapy can effectively improve the related symptoms of patients with knee osteoarthritis.This paper uses the method of network meta-analysis to compare the efficacy of different exercise types in the treatment of knee osteoarthritis. METHODS:CNKI,WanFang,PubMed,Embase,Cochrane Library,Web of Science,Scopus,Ebsco,SinoMed,and UpToDate were searched with Chinese search terms"knee osteoarthritis,exercise therapy"and English search terms"knee osteoarthritis,exercise".Randomized controlled trials on the application of different exercise types in patients with knee osteoarthritis from October 2013 to October 2023 were collected.The outcome measures included visual analog scale,Western Ontario and McMaster Universities Osteoarthritis Index score,Timed Up and Go test,and 36-item short form health survey.Literature quality analysis was performed using the Cochrane Manual recommended tool for risk assessment of bias in randomized controlled trials.Two researchers independently completed the data collection,collation,extraction and analysis.RevMan 5.4 and Stata 18.0 software were used to analyze and plot the obtained data. RESULTS:A total of 29 articles with acceptable quality were included,involving 1 633 patients with knee osteoarthritis.The studies involved four types of exercise:aerobic training,strength training,flexibility/skill training,and mindfulness relaxation training.(1)The results of network meta-analysis showed that compared with routine care/health education,aerobic training could significantly improve pain symptoms(SMD=-3.26,95%CI:-6.33 to-0.19,P<0.05);strength training(SMD=-0.79,95%CI:-1.34 to-0.23,P<0.05)and mindfulness relaxation training(SMD=-0.79,95%CI:-1.23 to-0.34,P<0.05)could significantly improve the function of patients.Aerobic training(SMD=-1.37,95%CI:-2.24 to-0.51,P<0.05)and mindfulness relaxation training(SMD=-0.41,95%CI:-0.80 to-0.02,P<0.05)could significantly improve the functional mobility of patients.Mindfulness relaxation training(SMD=0.70,95%CI:0.21-1.18,P<0.05)and strength training(SMD=0.42,95%CI:0.03-0.81,P<0.05)could significantly improve the quality of life of patients.(2)The cumulative probability ranking results were as follows:pain:aerobic training(86.6%)>flexibility/skill training(60.1%)>strength training(56.8%)>mindfulness relaxation training(34.7%)>routine care/health education(11.7%);Knee function:strength training(73.7%)>mindfulness relaxation training(73.1%)>flexibility/skill training(56.1%)>aerobic training(39.9%)>usual care/health education(7.6%);Functional mobility:aerobic training(94.7%)>mindfulness relaxation training(65.5%)>strength training(45.1%)>flexibility/skill training(41.6%)>routine care/health education(3.2%);Quality of life:mindfulness relaxation training(91.3%)>strength training(68.0%)>flexibility/skill training(44.3%)>aerobic training(34.0%)>usual care/health education(12.3%). CONCLUSION:(1)Exercise therapy is effective in the treatment of knee osteoarthritis,among which aerobic training has the best effect on relieving pain and improving functional mobility.Strength training and mindfulness relaxation training has the best effect on improving patients'function.Mindfulness relaxation training has the best effect on improving the quality of life of patients.(2)Limited by the quality and quantity of the included literature,more high-quality studies are needed to verify it.
10.Mechanism of Shanggan granules in suppressing the TLR4/NF-κB signaling pathway to alleviate the pulmonary inflammatory response in H1N1-infected mice
Mao LI ; Zhihong GUO ; Linjie LIU ; Mengnan ZHANG ; Xiuyuan LI
Chinese Journal of Comparative Medicine 2025;35(8):58-66
Objective To explore the mechanism of Shanggan granules in suppressing pulmonary inflammation in mice infected with H1N1 influenza virus.Methods A mouse model of pulmonary influenza virus infection was established by nasal inoculation with H1N1 influenza virus.Mice were divided into a normal control group,model group,positive control group,and low-,medium-,and high-dose Shanggan granules groups.Mice were treated for 7 days and then sacrificed,and the body weight and lung wet weight were measured.Pathological changes in the lung tissues were detected by hematoxylin/eosin(HE)staining.Tumor necrosis factor-α(TNF-α),interleukin(IL)-6,IL-8,and transforming growth factor-β(TGF-β)levels in lung tissues were detected by enzyme-linked immunosorbent assay,and superoxide dismutase(SOD),glutathione peroxidase(GSH-Px),and malondialdehyde(MDA)were detected using appropriate kits.Toll-like receptor 4(TLR4)/nuclear factor-κB(NF-κB)inflammatory signaling pathways were detected by real-time polymerase chain reaction,and TANK-binding kinase 1(TBK1)/interferon regulatory factor(IRF)signaling pathway proteins were detected by Western blot.Results Both Shanggan granules and oseltamivir phosphate reduced the lung wet weight(P<0.05,P<0.001)in mice infected with influenza virus H1N1 compared with the model group,decreased the infiltration of inflammatory cells in lung tissue,reduced levels of the inflammatory factors TNF-α,IL-6,IL-8,and TGF-β(P<0.05,P<0.01,P<0.001),decreased levels of SOD and GSH-Px in lung tissue(P<0.05,P<0.01),and increased MDA levels(P<0.05,P<0.01).Shanggan granules and oseltamivir phosphate also reduced TLR4,MyD88,and p38 mRNA levels(P<0.05,P<0.01)and expression of TBK1/IRF3/7/NF-κB signaling pathway proteins(P<0.05,P<0.01,P<0.001).Conclusions Shanggan granules may effectively reduce lung injury,lung inflammation,and oxidative stress,via a mechanism related to the down-regulation of TLR4/NF-κB inflammatory signaling pathways.

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