1.Research progress on p120-catenin in vascular development and endothelial barrier function
Xi XUE ; Yi-wen MAO ; Ming-jie WANG
Fudan University Journal of Medical Sciences 2025;52(4):572-580
p120-catenin(p120ctn)is one of the crucial members of armadillo family,which is well known as a core stabilizing factor for vascular endothelial cadherin(VE-cadherin).Throughout the entire process of vascular development,p120ctn plays multiple roles.From neovascularization to endothelial barrier,the presence of p120ctn is indispensable.It participates in regulating the normal development of vertebrate embryo vasculature and promoting endothelial cell proliferation.Additionally,p120ctn contributes to the maintenance and remodeling of adherens junctions and can modulate adhesion strength by altering cell morphology.This review summarized the latest research progress on p120ctn from neovascular development and endothelial barrier function.
2.The Xenomitochondrion Provides Extensive Supply for Mitochondrial Transplantation
Zhen YANG ; Wen-Peng LI ; Tian NIU ; Hui-Wen XUE ; Si-Xi ZHAO ; Xing-Bo ZHAO
Chinese Journal of Biochemistry and Molecular Biology 2025;41(2):273-283
Mitochondria are organelles in eukaryotic cells that play a crucial role in cellular energy me-tabolism,oxidative stress,heat production,and signal transduction.Mitochondrial transplantation(MT)is currently one of the most advanced techniques for treating mitochondrial dysfunction and anti-aging re-search.This study aimed to explore the feasibility and effectiveness of xenogeneic MT by transplanting mitochondria from yak(Bos grunniens),domestic cattle(Bos taurus),and horse(Equus caballus)into mice(Mus musculus).The results demonstrated that mitochondria from yak,domestic cattle,and horse could be successfully transplanted into mice and maintained in various tissues and organs of the mice for at least 14 days,as confirmed by confocal imaging,digital PCR,and DNA sequencing.MT mice exhibi-ted positive biological effects,including increased ATP content and mitochondrial DNA copy number(P<0.05),with the maximum effect observed on day 7,which was sustained until day 14.Reactive oxygen species(ROS)levels in MT mice significantly increased at 2 hours post-injection(P<0.05),then grad-ually decreased towards baseline levels by day 7 and day 14(P>0.05).These findings support the effec-tiveness of xenogeneic MT and suggest that the effects can be maintained for up to 14 days.This study provides scientific evidence for future clinical applications.
4.Acupuncture as A Potential Therapeutic Approach for Tourette Syndrome: Modulation of Neurotransmitter Levels and Gut Microbiota.
Bing-Xin WU ; Jun-Ye MA ; Xi-Chang HUANG ; Xue-Song LIANG ; Bai-le NING ; Qian WU ; Shan-Ze WANG ; Jun-He ZHOU ; Wen-Bin FU
Chinese journal of integrative medicine 2025;31(8):735-742
OBJECTIVE:
To investigate the effects of acupuncture on the neurotransmitter levels and gut microbiota in a mouse model of Tourette syndrome (TS).
METHODS:
Thirty-six male C57/BL6 mice were randomly divided into 4 groups using a random number table method: 3,3'-iminodipropionitrile (IDPN) group, control group, acupuncture group, and tiapride group, with 9 mice in each group. In the IDPN group, acupuncture group, and tiapride group, mice received daily intraperitoneal injections of IDPN (300 mg/kg body weight) for 7 consecutive days to induce stereotyped behaviors. Subsequently, in the acupuncture intervention group, standardized acupuncture treatment was administered for 14 consecutive days to IDPN-induced TS model mice. The selected acupoints included Baihui (DU 20), Yintang (DU 29), Waiguan (SJ 5), and Zulinqi (GB 41). In the tiapride group, mice were administered tiapride (50 mg/kg body weight) via oral gavage daily for 14 consecutive days. The control group, IDPN group, and acupuncture group received the same volume of saline orally for 14 consecutive days. Stereotypic behaviors were quantified through behavioral assessments. Neurotransmitter levels, including dopamine (DA), glutamate (Glu), and aspartate (ASP) in striatal tissue were measured using enzyme-linked immunosorbent assay. Dopamine transporter (DAT) expression levels were additionally quantified through quantitative polymerase chain reaction (qPCR). Gut microbial composition was analyzed through 16S ribosomal RNA gene sequencing, while metabolic profiling was conducted using liquid chromatography-mass spectrometry (LC-MS).
RESULTS:
Acupuncture administration significantly attenuated stereotypic behaviors, concurrently reducing striatal levels of DA, Glu and ASP concentrations while upregulating DAT expression compared with untreated TS controls (P<0.05 or P<0.01). Comparative analysis identified significant differences in Muribaculaceae (P=0.001), Oscillospiraceae (P=0.049), Desulfovibrionaceae (P=0.001), and Marinifilaceae (P=0.014) following acupuncture intervention. Metabolomic profiling revealed alterations in 7 metabolites and 18 metabolic pathways when compared to the TS mice, which involved various amino acid metabolisms associated with DA, Glu, and ASP.
CONCLUSIONS
Acupuncture demonstrates significant modulatory effects on both central neurotransmitter systems and gut microbial ecology, thereby highlighting its dual therapeutic potential for TS management through gut-brain axis regulation.
Animals
;
Tourette Syndrome/metabolism*
;
Gastrointestinal Microbiome
;
Neurotransmitter Agents/metabolism*
;
Acupuncture Therapy
;
Male
;
Mice, Inbred C57BL
;
Mice
5.Longitudinal Associations between Vitamin D Status and Systemic Inflammation Markers among Early Adolescents.
Ting TANG ; Xin Hui WANG ; Xue WEN ; Min LI ; Meng Yuan YUAN ; Yong Han LI ; Xiao Qin ZHONG ; Fang Biao TAO ; Pu Yu SU ; Xi Hua YU ; Geng Fu WANG
Biomedical and Environmental Sciences 2025;38(1):94-99
6.Spatial-temporal Dynamics of Tuberculosis and Its Association with Meteorological Factors and Air Pollution in Shaanxi Province, China.
Heng Liang LYU ; Xi Hao LIU ; Hui CHEN ; Xue Li ZHANG ; Feng LIU ; Zi Tong ZHENG ; Hong Wei ZHANG ; Yuan Yong XU ; Wen Yi ZHANG
Biomedical and Environmental Sciences 2025;38(7):867-872
7.Association between Serum Chloride Levels and Prognosis in Patients with Hepatic Coma in the Intensive Care Unit.
Shu Xing WEI ; Xi Ya WANG ; Yuan DU ; Ying CHEN ; Jin Long WANG ; Yue HU ; Wen Qing JI ; Xing Yan ZHU ; Xue MEI ; Da ZHANG
Biomedical and Environmental Sciences 2025;38(10):1255-1269
OBJECTIVE:
To explore the relationship between serum chloride levels and prognosis in patients with hepatic coma in the intensive care unit (ICU).
METHODS:
We analyzed 545 patients with hepatic coma in the ICU from the Medical Information Mart for Intensive Care IV (MIMIC-IV) database. Associations between serum chloride levels and 28-day and 1-year mortality rates were assessed using restricted cubic splines (RCSs), Kaplan-Meier (KM) curves, and Cox regression. Subgroup analyses, external validation, and mechanistic studies were also performed.
RESULTS:
A total of 545 patients were included in the study. RCS analysis revealed a U-shaped association between serum chloride levels and mortality in patients with hepatic coma. The KM curves indicated lower survival rates among patients with low chloride levels (< 103 mmol/L). Low chloride levels were independently linked to increased 28-day and 1-year all-cause mortality rates. In the multivariate models, the hazard ratio ( HR) for 28-day mortality in the low-chloride group was 1.424 (95% confidence interval [ CI]: 1.041-1.949), while the adjusted hazard ratio for 1-year mortality was 1.313 (95% CI: 1.026-1.679). Subgroup analyses and external validation supported these findings. Cytological experiments suggested that low chloride levels may activate the phosphorylation of the NF-κB signaling pathway, promote the expression of pro-inflammatory cytokines, and reduce neuronal cell viability.
CONCLUSION
Low serum chloride levels are independently associated with increased mortality in patients with hepatic coma.
Humans
;
Male
;
Female
;
Middle Aged
;
Intensive Care Units
;
Prognosis
;
Chlorides/blood*
;
Aged
;
Coma/blood*
;
Adult
8.Research on Two-Dimensional Convolutional Neural Network Model for Near Infrared Spectroscopy Analysis Based on Competitive Adaptive Reweighted Sampling and Gramian Angular Difference Field
Xiao-Song ZENG ; Ke-Wei HUAN ; Xiao-Xi LIU ; Xian-Wen CAO ; Xue-Yan HAN
Chinese Journal of Analytical Chemistry 2025;53(6):955-966
Near infrared spectroscopy(NIRS)analysis technology has become an important process analysis tool in industrial and agricultural production,and has been widely used for qualitative and quantitative analysis in the fields of tobacco,agriculture,and pharmaceuticals.To address issues such as poor generalization ability and low prediction accuracy in NIRS modeling,a two-dimensional convolutional neural network(2DCNN)quantitative analysis model based on competitive adaptive reweighted sampling(CARS)and Gramian angular difference field(GADF)(CARS-GADF-2DCNN)was proposed.CARS-GADF-2DCNN used the CARS method to select an optimal wavelength set from the full spectrum,then employed GADF to encode the selection results into two-dimensional images,and finally used 2DCNN for prediction analysis.The 2DCNN model consisted of convolutional layers,parallel convolution modules,flattening layer,and fully connected layers.Simulation experiments were conducted on three public near-infrared(NIR)spectral datasets encompassing soil,tablet,and grain datasets to evaluate the CARS-GADF-2DCNN model.The results demonstrated that,compared to the one-dimensional convolutional neural network(1DCNN),the GADF-2DCNN model achieved 16.74%,23.40%,and 7.13%improvement in prediction accuracy for the soil,tablet,and grain datasets,respectively.Compared to GADF-2DCNN,VCPA-GADF-2DCNN,and IRIV-GADF-2DCNN models,the CARS-GADF-2DCNN model further improved prediction accuracy.For the soil dataset,prediction accuracy improved by 39.00%,30.78%and 4.13%;for the tablet dataset,the improvements were 9.52%,6.94%and 2.56%;for the grain dataset,the improvements were 20.57%,9.85%and 15.66%.In conclusion,CARS-GADF-2DCNN effectively selected the optimal wavelength subset from near infrared spectra,and revealed the latent features between different wavelengths.CARS-GADF-2DCNN addresses the issues of high complexity in prediction models and low prediction accuracy in near infrared spectral modeling,and could be effectively applied to near infrared spectral prediction analysis of different substances.
9.Research progress on p120-catenin in vascular development and endothelial barrier function
Xi XUE ; Yi-wen MAO ; Ming-jie WANG
Fudan University Journal of Medical Sciences 2025;52(4):572-580
p120-catenin(p120ctn)is one of the crucial members of armadillo family,which is well known as a core stabilizing factor for vascular endothelial cadherin(VE-cadherin).Throughout the entire process of vascular development,p120ctn plays multiple roles.From neovascularization to endothelial barrier,the presence of p120ctn is indispensable.It participates in regulating the normal development of vertebrate embryo vasculature and promoting endothelial cell proliferation.Additionally,p120ctn contributes to the maintenance and remodeling of adherens junctions and can modulate adhesion strength by altering cell morphology.This review summarized the latest research progress on p120ctn from neovascular development and endothelial barrier function.
10.The Xenomitochondrion Provides Extensive Supply for Mitochondrial Transplantation
Zhen YANG ; Wen-Peng LI ; Tian NIU ; Hui-Wen XUE ; Si-Xi ZHAO ; Xing-Bo ZHAO
Chinese Journal of Biochemistry and Molecular Biology 2025;41(2):273-283
Mitochondria are organelles in eukaryotic cells that play a crucial role in cellular energy me-tabolism,oxidative stress,heat production,and signal transduction.Mitochondrial transplantation(MT)is currently one of the most advanced techniques for treating mitochondrial dysfunction and anti-aging re-search.This study aimed to explore the feasibility and effectiveness of xenogeneic MT by transplanting mitochondria from yak(Bos grunniens),domestic cattle(Bos taurus),and horse(Equus caballus)into mice(Mus musculus).The results demonstrated that mitochondria from yak,domestic cattle,and horse could be successfully transplanted into mice and maintained in various tissues and organs of the mice for at least 14 days,as confirmed by confocal imaging,digital PCR,and DNA sequencing.MT mice exhibi-ted positive biological effects,including increased ATP content and mitochondrial DNA copy number(P<0.05),with the maximum effect observed on day 7,which was sustained until day 14.Reactive oxygen species(ROS)levels in MT mice significantly increased at 2 hours post-injection(P<0.05),then grad-ually decreased towards baseline levels by day 7 and day 14(P>0.05).These findings support the effec-tiveness of xenogeneic MT and suggest that the effects can be maintained for up to 14 days.This study provides scientific evidence for future clinical applications.

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