1.Pathogenic Mechanisms of Spleen Deficiency-Phlegm Dampness in Obesity and Traditional Chinese Medicine Prevention and Treatment Strategies:from the Perspective of Immune Inflammation
Yumei LI ; Peng XU ; Xiaowan WANG ; Shudong CHEN ; Le YANG ; Lihua HUANG ; Chuang LI ; Qinchi HE ; Xiangxi ZENG ; Juanjuan WANG ; Wei MAO ; Ruimin TIAN
Journal of Traditional Chinese Medicine 2026;67(1):31-37
Based on spleen deficiency-phlegm dampness as the core pathogenesis of obesity, and integrating recent advances in modern medicine regarding the key role of immune inflammation in obesity, this paper proposes a multidimensional pathogenic network of "obesity-spleen deficiency-phlegm dampness-immune imbalance". Various traditional Chinese medicine (TCM) herbs that strengthen the spleen, regulate qi, and resolve phlegm and dampness can treat obesity by improving spleen-stomach transport and transformation, promoting water-damp metabolism, and regulating immune homeostasis. This highlights immune inflammation as an important entry point to elucidate the TCM concepts of "spleen deficiency-phlegm dampness" and the therapeutic principle of "strengthening the spleen and eliminating dampness to treat obesity". By systematically analyzing the intrinsic connection between "spleen deficiency generating dampness, internal accumulation of phlegm dampness" and immune dysregulation in obesity, this paper aims to provide theoretical support for TCM treatment of obesity based on dampness.
2.Medical student selection interviews: insights into nonverbal observable communications: a cross-sectional study
Pin-Hsiang HUANG ; Kang-Chen FAN ; Alexander WAITS ; Boaz SHULRUF ; Yi-Fang CHUANG
Korean Journal of Medical Education 2025;37(2):153-161
Purpose:
Interviews play a crucial role in the medical school selection process, although little is known about interviewers’ non-verbal observable communications (NoVOC) during the interviews. This study investigates how interviewers perceive NoVOC exhibited by interviewees in two medical schools, one in Taiwan and the other in Australia. The study also explores potential cross-cultural differences in these perceptions.
Methods:
A 26-item questionnaire was developed using a Delphi-like method to identify NoVOC. Interviewers from the University of New South Wales, Australia, and National Yang Ming Chiao Tung University, Taiwan (n=47 and N=78, respectively) rated these NoVOC between 2018 and 2021. Factor analyses identified and validated underlying factors. Measurement invariance across countries and genders was examined.
Results:
A total of 125 interviewers completed the questionnaire, including 78 from Taiwan and 47 from Australia. Using exploratory factor analysis, 14 items yielded reliable three factors “charming,” “disengaged,” and “anxious” (Cronbach’s α=0.853, 0.714, and 0.628, respectively). The measurement invariance analysis indicated that the factor models were invariant across genders but significantly different between the two countries. Further analysis revealed inconsistencies in interpreting the “anxious” factor between Taiwan and Australia.
Conclusion
The three distinct factors revealed in this study provide valuable insights into the NoVOC that interviewers perceive and evaluate during the interview process. The findings highlight the importance of considering non-verbal communication in selecting medical students and emphasize the need for training and awareness among interviewers. Understanding the impact of non-verbal behaviors can improve selection processes to mitigate bias and enhance the fairness and reliability of medical student selection.
3.Ion Filtering and Reactivity Investigation Based on Tandem Ion Mobility Spectrometry
Yi-Qian XU ; Qi-Mu YANG ; Man-Man PAN ; Dan-Dan JIANG ; Chuang CHEN ; Hai-Yang LI
Chinese Journal of Analytical Chemistry 2025;53(5):740-748
In analytical techniques such as ion mobility spectrometry(IMS)and mass spectrometry(MS),the ionization efficiency of target analytes is primarily constrained by the type of ionization source and factors such as the species and number density of the reactant ions.Systematic investigation into the reactivity differences of various reactant ions under varying conditions can not only significantly enhance the detection sensitivity of target compound product ions but also provide a theoretical foundation for establishing efficient detection methods based on ion-molecule reaction mechanisms.In this study,the pressure of a pressure-tunable photoionization tandem ion mobility spectrometry(PI-tandem-IMS)was reduced from ambient pressure(100 kPa)to low pressure(20 kPa)to systematically examine the reactivity differences between two negative reactant ions,CO3-and CO4-,and methyl salicylate(MeSA)under varying pressures.When the pressure decreased,the increased relative signal intensity of CO4-significantly influenced the detection sensitivity of the characteristic product ion[MeSA·O2]-.Based on differences in ion mobility(k0),the delay time for the opening of TPG2 was adjusted to selectively inject CO-3 and CO-4 in the drift region 2.Independent characterization of the reactivity of these reactant ions with MeSA in the reaction region confirmed that CO4-exhibited superior reactivity toward MeSA.The theoretical model revealed an Arrhenius plot for the ion-molecule reaction between CO4-and MeSA,showing a positive correlation between the reaction rate coefficient(k)and temperature,the activation energy Ea was 62.45 kJ/mol.Furthermore,controlling parameters such as pressure or temperature significantly influenced the progression of this ion-molecule reaction,demonstrating the technical advantages of PI-tandem-IMS in mechanistic studies and regulation of ion-molecule reactions.
4.Improvement of Performance of Ion Mobility Spectrometry Using A Low Discrimination Bradbury-Nielsen Gate Controlling Method
Qi-Mu YANG ; Yi-Qian XU ; Man-Man PAN ; Dan-Dan JIANG ; Chuang CHEN ; Hai-Yang LI
Chinese Journal of Analytical Chemistry 2025;53(6):875-884
The resolving power and sensitivity are critical for on-site detection of hazardous chemicals using stand-alone ion mobility spectrometry(IMS).However,improving the sensitivity and resolving power of IMS has long been a prominent research hot spot.In the commonly used IMS based on the Bradbury-Nielsen gate(BNG),the gating voltage difference(GVD)applied between the two sets of grid wires affects the electric field distribution in the ionization region and the drift region.This,in turn,influences the spatial distribution and temporal width of the injected ion swarm,and has an impact on the ion mobility discrimination,sensitivity,and resolving power of the instrument.This study showed that increasing the GVD could induce an ion converging effect,boosting the ion number density in front of the BNG by nearly 300%.To simultaneously utilize temporal compression and ion converging effects,a novel BNG controlling mode was proposed by adding a chopping state to the conventional controlling mode.This chopping state reduced the mobility discrimination effects between ions with mobility differences up to about 0.90 cm2/(V·s)to 1/22 of their original value.When analyzing hazardous chemical mixtures using the novel BNG controlling mode,compared with conventional mode,the signal intensity of low-mobility methyl salicylate ions(MS·O2)-increased by 18-fold while the resolving power maintained around 100,and the detection limit for MS was improved from 3.75 μg/L to 97 ng/L.This novel BNG controlling mode only added a potential wave to the low voltage wires,with no requirement of changing the structure of the drift tube,and was easy to apply to existing commercial instruments.
5.Trajectories of executive function development and its neural mechanisms in patients with attention deficit hyperactivity disorder
Ruilin JIN ; Jiaqi ZHOU ; Teng ZHU ; Jiayun YU ; Wanying ZHENG ; Hanlin LI ; Mengjie ZHANG ; Xiaolei CEN ; Chuang YANG
Chinese Journal of Behavioral Medicine and Brain Science 2025;34(3):277-282
Executive function(EF) is an advanced cognitive function of the central nervous system, and is closely related to an individual's capacity for daily living and adaptation. Patients with attention deficit hyperactivity disorder (ADHD) typically exhibit significant executive dysfunction. While most existing studies on the executive function of individuals with ADHD are cross-sectional, and little is known about the longitudinal maturation process of related brain structures and functional connectivity patterns. The findings indicate that ADHD patients exhibit differential developmental trajectories in brain structural and functional connectivity compared with typically developing group.Furthermore, there is a lifespan association between abnormal brain network development and ADHD symptoms. This article aims to elucidate the characteristics of executive function deficits in ADHD patients across different developmental stages, examining their relationship with the nervous system’s development from a development perspective.
6.Vitamin D3 on neutrophil calcium uptake and LC3 autophagy function in hypocal-cemic dairy cows
Xinquan LYU ; Siyao LI ; Bingbing ZHANG ; Chuang XU ; Wei YANG
Chinese Journal of Veterinary Science 2025;45(6):1268-1272
To investigate the effect of VD3 on the concentration of Ca2+in neutrophils of subclinical hypocalcemia dairy cows and the autophagy of LC3,peripheral blood of dairy cows was collected and neutrophils were isolated and extracted.Western blot was used to detect the abundance of LC3 autophagy pathway-related proteins(LC3-Ⅱ,P62,ATG5)in cells.The intracellular Ca2+concen-tration of neutrophils was detected by flow cytometry.The LC3 autophagosome was detected by la-ser confocal technology.By adding VD3 to affect intracellular Ca2+concentration levels,the effects of vitamin D3 on calcium absorption and LC3 autophagy function were investigated.Western blot result showed that the protein abundances of LC3 and ATG5 in neutrophils of subclinical hypocal-cemia dairy cows decreased,while the protein abundance of p62 increased,indicating that the auto-phagy function of LC3 in subclinical hypocalcemia dairy cows was weakened.After VD3 treatment,the flow cytometry results showed that VD3 promoted the increase of Ca2+concentration levels in neutrophils.The Western blot results showed that the LC3 autophagy function of neutrophils from healthy cows and subclinical hypocalcemia cows was enhanced under the action of VD3,indicating that VD3 promoted the concentration of Ca2+in neutrophils and then affected the LC3 autophagy function.
7.Effects of TGR5 on liver lipid metabolism and bile acid synthesis in dairy cows with fatty liver
Yaqi CHANG ; Tianjiao YANG ; Yunfei LUAN ; Jihang LI ; Zexin ZHANG ; Bingbing ZHANG ; Chuang XU ; Wei YANG
Chinese Journal of Veterinary Science 2025;45(10):2282-2291
To explore the impacts of TGR5 on liver lipid metabolism and bile acid synthesis in dairy cows with fatty liver.Liver tissues of healthy cows and cows with fatty liver were collected through puncture technique.The protein and mRNA expressions of lipid synthesis-related factors ACC1,FAS,SREBF1,lipid oxidation factor CPT1A,and bile acid synthesis-related factors CYP8B1,CYP7B1,CYP27A1 were detected by Western blot and fluorescent quantitative PCR.Moreover,the mRNA levels of CYP7B1 were determined.Primary hepatocytes of 1-day-old calves were extracted and cultured in vitro,and four treatment groups were established,namely Control,NEFA,INT-777,and the INT-777+NEFA group.The concentration of NEFA group was 1.2 mmol/L,the con-centration of INT-777 group was 1 μmol/L,and the concentration of INT-777+NEFA group was 1.2 mmol/L NEFA and 1 μmol/L INT-777 simultaneously.After 12 h of stimulation,cells were collected,and the protein and mRNA levels of ACC1,FAS,SREBF1,CPT1A,CYP8B1,CYP7A1,CYP27A1,and the mRNA levels of CYP7B1 were detected by Western blot and fluorescent quanti-tative PCR.The content of lipid droplets and TG in the cells were detected by flow cytometry and kit.The results demonstrated that compared with healthy cows,the protein and mRNA expressions of ACC1,FAS,SREBF1,CYP8B1,and CYP7A1 in the liver tissues of fatty liver cows were upreg-ulated,while the protein and mRNA levels of CPT1 A,CYP27A1,TGR5,and the mRNA levels of CYP7B1 were downregulated.In vitro experiments revealed that compared with the Control group,the protein and mRNA levels of ACC1,FAS,SREBF1,CYP8B1,and CYP7A1 in the NEFA group were upregulated,and the protein and mRNA levels of CPT1A,CYP27A1,and TGR5,as well as the mRNA level of CYP7B1,were downregulated.Compared with the NEFA group,the protein and mRNA levels of ACC1,FAS,SREBF1,CYP8B1,CYP7A1 were downregulated in the INT-777+NEFA group,while the protein and mRNA levels of CPT1A CYP27A1,and TGR5 as well as the mRNA level of CYP7B1,were upregulated.The results of flow cytometry and the kit indicated that the lipid droplets and TG content in the NEFA group were upregulated compared with the Control group,while the lipid droplets and TG content in the INT-777+NEFA group were downregulated compared with the NEFA group.The above results suggested that the addition of TGR5 agonist promoted the expression of TGR5 and ameliorated the abnormal lipid metabolism and bile acid synthesis in the liver of dairy cows with fatty liver.
8.Stearic acid affects the expression of IL-17 in CD4+T cells from ketosis cows through CD36
Ziwei JI ; Siyao LI ; Haixin ZHANG ; Ziwei LI ; Shangmingzhu ZHANG ; Wei YANG ; Chuang XU ; Bingbing ZHANG
Chinese Journal of Veterinary Science 2025;45(3):602-610
The peripheral blood of healthy or ketosis dairy cows was collected,and CD4+T cells were isolated.The expressions of lipid synthesis related proteins fatty acid synthase(FASN),acetyl coenzyme A carboxylase 1(ACC1),cluster of differentiation 36(CD36)and store-operated calcium entry(SOCE)related proteins ORAIl,ORAI2,ORAI3,STIM1,STIM2 were detected by Western blot.IL-17 cells were detected by flow cytometry.CD4+T cells were isolated from the spleen of 1-day-old calves and cultured in vitro.Cells were treated and divided into control(Ctrl)group,si-lenced CD36(siCD36)group,stearic acid(SA)group,and SA+siCD36 group.Cells in the Ctrl and SA groups were transfected with 75 pmol/L negative control siRNA for 48 h,and then stimulated with 200 μmol/L SA for 24 h;Cells in the siCD36 group and SA+siCD36 group were transfected with 75 pmol/L CD36 siRNA for 48 h,and then stimulated with 200 μmol/L SA for 24 h in the SA+siCD36 group.The protein expression of FASN,CD36,ACC1,ORAI1,ORAI2,ORAI3,STIM1 and STIM2 was detected by Western blot,and IL-17 cells were detected by flow cytometry.The results showed that the expression of IL-17 in peripheral blood CD4+T cells of ketosis dairy cows was significantly increased compared to that of healthy cows(P<0.01).Additionally,the protein level of FASN,CD36,STIM1(P<0.05),and ACC1,ORAI2,ORAI3,STIM2(P<0.01)were up-regulated.Compared with the Ctrl group,the protein expression levels of CD36,ACC1 and ORAI3(P<0.05)were up-regulated in the SA group,as well as the protein expression of FASN and STIM1(P<0.01).Additionally,the expression of IL-17 was significantly increased(P<0.05).Compared with the SA group,there was a decrease in the protein expression of STIM1,ORAI1(P<0.05)and CD36,ACC1,FASN,ORAI2(P<0.01)in the siCD36+SA group,as well as IL-17(P<0.05).These results suggest that SA can promote the expression of IL-17 in CD4+T cells in ketosis cows by regulating fatty acid synthesis and activating SOCE channels through CD36.
9.Determination of related substances in peramivir injection by HPLC method
Yang CAO ; Chuang LIU ; Lina WANG ; Jingjing SUN
Drug Standards of China 2025;26(2):213-220
Objective:To establish a high-performance liquid chromatography method for the determination of related substances in panamivir injection.Methods:The Waters Xbridge Peptide BEH C18(250 mm×4.6 mm,3.5 μm).Phosphate buffer-acetonitrile was used as mobile phase,gradient elution,flow rate 0.8 mL·min-1,column temperature 35℃,detection wavelength 210 nm.Results:Peramivir could be effectively separated from all known impurities,with a limit of quantification of 5.29-18.02 ng and a limit of detection of 1.59-5.41 ng,with a good linear relationship(r>0.999 0)in the range of 200%of the limit of quantification to the limit concen-tration,and the average recovery rate of each impurity was 99.6%-106.8%(n=12).The results of three batches of peramivir injection samples showed that the known impurities and other largest single impurities were less than 0.2%,and the total impurities were less than 1.0%.Conclusion:Verified by analytical methodology,the method is convenient,fast,specific,sensitive,and accurate,and can be used for the determination of peramivir injection-related substances.
10.Determination of related substances in peramivir injection by HPLC method
Yang CAO ; Chuang LIU ; Lina WANG ; Jingjing SUN
Drug Standards of China 2025;26(2):213-220
Objective:To establish a high-performance liquid chromatography method for the determination of related substances in panamivir injection.Methods:The Waters Xbridge Peptide BEH C18(250 mm×4.6 mm,3.5 μm).Phosphate buffer-acetonitrile was used as mobile phase,gradient elution,flow rate 0.8 mL·min-1,column temperature 35℃,detection wavelength 210 nm.Results:Peramivir could be effectively separated from all known impurities,with a limit of quantification of 5.29-18.02 ng and a limit of detection of 1.59-5.41 ng,with a good linear relationship(r>0.999 0)in the range of 200%of the limit of quantification to the limit concen-tration,and the average recovery rate of each impurity was 99.6%-106.8%(n=12).The results of three batches of peramivir injection samples showed that the known impurities and other largest single impurities were less than 0.2%,and the total impurities were less than 1.0%.Conclusion:Verified by analytical methodology,the method is convenient,fast,specific,sensitive,and accurate,and can be used for the determination of peramivir injection-related substances.

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