1.Caffeoylquinic acids from Erigeron breviscapus ameliorates cognitive impairment and mitochondrial dysfunction in AD by activating PINK1/Parkin-mediated mitophagy.
Yuan-Zhu PU ; Hai-Feng CHEN ; Xin-Yi WANG ; Can SU
China Journal of Chinese Materia Medica 2025;50(14):3969-3979
This study aimed to investigate the effects of caffeoylquinic acids from Erigeron breviscapus(EBCQA) on cognitive impairment and mitochondrial dysfunction in Alzheimer's disease(AD), and to explore its underlying mechanisms. The impacts of EBCQA on paralysis, β-amyloid(Aβ) oligomerization, and mRNA expression of mitophagy-related genes [PTEN-induced putative kinase 1(PINK1) homolog-encoding gene pink-1, Parkin homolog-encoding gene pdr-1, Bcl-2 interacting coiled-coil protein 1(Beclin 1) homolog-encoding gene bec-1, microtubule-associated protein 1 light chain 3(LC3) homolog-encoding gene lgg-1, autophagic adapter protein 62(p62) homolog-encoding gene sqst-1] were examined in the AD Caenorhabditis elegans CL4176 model, along with mitochondrial functions including adenosine triphosphate(ATP) content, enzyme activities of mitochondrial respiratory chain complexes Ⅰ,Ⅲ, and Ⅳ, and mitochondrial membrane potential. Additionally, the effects of EBCQA on the green fluorescent protein(GFP)/red fluorescent protein from Discosoma sp.(DsRed) ratio, the expression of phosphatidylethanolamine-modified and GFP-labeled LGG-1(PE-GFP::LGG-1)/GFP-labeled LGG-1(GFP::LGG-1), and GFP-labeled SQST-1(GFP::SQST-1) proteins were investigated in transgenic C. elegans strains. The effect of EBCQA on paralysis was further evaluated after RNA interference(RNAi)-mediated suppression of the pink-1 and pdr-1 genes in CL4176 strain. An AD rat model was established through intraperitoneal injection of D-galactose and intragastric administration of aluminum trichloride. The effects of β-nicotinamide mononucleotide(NMN) and EBCQA on learning and memory ability, neuronal morphology, mitophagy occurrence, mitophagy-related protein expression(PINK1, Parkin, Beclin 1, LC3-Ⅱ/LC3-Ⅰ, p62), and mitochondrial functions(ATP content; enzyme activities of mitochondrial respiratory chain complexes Ⅰ, Ⅲ, and Ⅳ; mitochondrial membrane potential) were investigated in this AD rat model. The results showed that EBCQA delayed paralysis onset in the CL4176 strain, reduced Aβ oligomer formation, and upregulated the mRNA expression levels of lgg-1, bec-1, pink-1, and pdr-1, while downregulating sqst-1 mRNA expression. EBCQA also enhanced ATP content, mitochondrial membrane potential, and the activities of mitochondrial respiratory chain complexes Ⅰ, Ⅲ, and Ⅳ. Furthermore, EBCQA improved the PE-GFP::LGG-1/GFP::LGG-1 ratio, reduced GFP::SQST-1 expression, and decreased the GFP/DsRed ratio. Notably, the ability of EBCQA to delay paralysis was significantly reduced following RNAi-mediated suppression of pink-1 and pdr-1 in CL4176 strain. In AD rats, the administration of NMN or EBCQA significantly improved learning and memory, restored neuronal morphology in the hippocampus, increased autophagosome numbers, and upregulated the expression of PINK1, Parkin, Beclin 1, and the LC3-Ⅱ/LC3-Ⅰ ratio, while reducing p62 expression. Additionally, the treatment with NMN or EBCQA both elevated ATP content, mitochondrial respiratory chain complex Ⅰ, Ⅲ, and Ⅳ activities, and mitochondrial membrane potential in the hippocampus. The above findings indicate that EBCQA improves cognitive impairment and mitochondrial dysfunction in AD, possibly through activation of PINK1/Parkin-mediated mitophagy.
Animals
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Alzheimer Disease/psychology*
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Mitophagy/drug effects*
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Mitochondria/genetics*
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Caenorhabditis elegans/metabolism*
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Ubiquitin-Protein Ligases/genetics*
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Cognitive Dysfunction/physiopathology*
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Rats
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Protein Kinases/genetics*
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Humans
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Male
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Disease Models, Animal
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Caenorhabditis elegans Proteins/genetics*
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Drugs, Chinese Herbal/administration & dosage*
2.Study on the Clinical Application Effect of Low-Field Infant MRI.
Caixian ZHENG ; Siwei XIANG ; Chang SU ; Linyi ZHANG ; Can LAI ; Tianming YUAN ; Lu ZHOU ; Yunming SHEN ; Kun ZHENG
Chinese Journal of Medical Instrumentation 2025;49(5):501-506
OBJECTIVE:
Evaluate the clinical application effect of low-field infant MRI.
METHODS:
Using literature review, expert consultation, and two rounds of Delphi to determine the evaluation index system. Then retrospectively analyze and compare the data of low-field infant MRI and high-field MRI from January 2023 to December 2024.
RESULTS:
There is a certain gap between low-field infant MRI and high-field MRI in terms of signal-to-noise ratio, image uniformity, software system reliability, scanning time, user interface friendliness and image result consistency. However, there was no difference in terms of spatial resolution and image quality. The noise, hardware system reliability, mean time between failure and the rate of examination completed without sedation are better than that of high-field MRI.
CONCLUSION
Low-field infant MRI meets needs of clinical diagnostic and has stable performance. It can be used as a routine screening tool for brain diseases near the bed.
Magnetic Resonance Imaging/methods*
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Humans
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Infant
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Retrospective Studies
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Signal-To-Noise Ratio
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Reproducibility of Results
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Brain Diseases/diagnostic imaging*
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Brain/diagnostic imaging*
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Software
4.Clinical practice guidelines for the diagnosis and treatment of atopic dermatitis with integrative traditional Chinese and Western medicine.
Xin-Ran DU ; Meng-Yi WU ; Mao-Can TAO ; Ying LIN ; Chao-Ying GU ; Min-Feng WU ; Yi CAO ; Da-Can CHEN ; Wei LI ; Hong-Wei WANG ; Ying WANG ; Yi WANG ; Han-Zhi LU ; Xin LIU ; Xiang-Fei SU ; Fu-Lun LI
Journal of Integrative Medicine 2025;23(6):641-653
Traditional Chinese medicine (TCM) is a well-accepted therapy for atopic dermatitis (AD). However, there are currently no evidence-based guidelines integrating TCM and Western medicine for the treatment of AD, limiting the clinical application of such combined approaches. Therefore, the China Association of Chinese Medicine initiated the development of the current guideline, focusing on key issues related to the use of TCM in the treatment of AD. This guideline was developed in accordance with the principles of the guideline formulation manual published by the World Health Organization. A comprehensive review of the literature on the combined use of TCM and Western medicine to treat AD was conducted. The findings were extensively discussed by experts in dermatology and pharmacy with expertise in both TCM and Western medicine. This guideline comprises 23 recommendations across seven major areas, including TCM syndrome differentiation and classification of AD, principles and application scenarios of TCM combined with Western medicine for treating AD, outcome indicators for evaluating clinical efficacy of AD treatment, integration of TCM pattern classification and Western medicine across disease stages, daily management of AD, the use of internal TCM therapies and proprietary Chinese medicines, and TCM external treatments. Please cite this article as: Du XR, Wu MY, Tao MC, Lin Y, Gu CY, Wu MF, Cao Y, Chen DC, Li W, Wang HW, Wang Y, Wang Y, Lu HZ, Liu X, Su XF, Li FL. Clinical practice guidelines for the diagnosis and treatment of atopic dermatitis with integrative traditional Chinese and Western medicine. J Integr Med. 2025; 23(6):641-653.
Dermatitis, Atopic/drug therapy*
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Humans
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Medicine, Chinese Traditional/methods*
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Integrative Medicine
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Drugs, Chinese Herbal/therapeutic use*
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Practice Guidelines as Topic
5.Bioactive glass 45S5 promotes odontogenic differentiation of apical papilla cells through autophagy.
Weilin LIU ; Can SU ; Caiyun CUI
West China Journal of Stomatology 2025;43(1):37-45
OBJECTIVES:
The mechanism of the odontogenic differentiation of apical papillary cells (APCs) stimulated by bioactive glass 45S5 is still unclear. This study aims to investigate the effect of autophagy on the odontogenic differentiation of APCs stimulated by bioactive glass 45S5.
METHODS:
APCs were isolated and cultured in vitro, and the cell origin was identified by flow cytometry. The culture medium was prepared with 1 mg/mL 45S5, and its pH and ion concentration were determined. The experiments were divided into control, 45S5, and 3-methyladenine (3-MA) 45S5 groups. In the 45S5 group, APCs were induced to culture with 1 mg/mL 45S5. In the 3-MA 45S5 group, the autophagy inhibitor 3-MA was added to 1 mg/mL 45S5. Protein immunoblotting assay (Western blot) was used to detect the expression of autophagy-associated proteins of microtubule-associated protein 1 light-chain 3β (LC3B) and P62 after 24 h of induction culture in each group. Real-time quantitative polymerase chain reaction (RT-qPCR) was used to detect the expression of bone sialoprotein (BSP), Runt-related transcription factor 2 (Runx2), dentin sialophosphoprotein (DSPP), and dentin matrix protein-1 (DMP-1) after 7 d of induction culture. Cellular alkaline phosphatase (ALP) staining analyzed cellular ALP activity at 7 d of induction, and alizarin red staining evaluated the formation of mineralized nodules at 21 d of induction.
RESULTS:
The pH of the 45S5 extract culture medium was 8.65±0.01, which was not significantly different from that of the control group (P>0.05). The silicon ion concentration of the 45S5 induction culture medium was (1.56±0.07) mmol/L, which was higher than that of the control group (0.08±0.01) mmol/L (P<0.05). The calcium ion concentration of the 45S5 induction culture was (1.57±0.15) mmol/L, which was not significantly different from that of the control group (P>0.05). Western blot results showed that LC3B-Ⅱ/Ⅰ ratio increased and P62 expression decreased in the 45S5 group compared with those in the control group (P<0.05). By contrast, the ratio decreased and the expression increased in the 3-MA 45S5 group compared with those in the 45S5 group (P<0.05). RT-qPCR results showed that the expression of BSP, Runx2, DMP-1, and DSPP enhanced in the 45S5 group compared with that in the control group (P<0.05), but the expression decreased in the 3-MA 45S5 group compared with that in the 45S5 group (P<0.05). Semi-quantitative analysis of ALP staining and alizarin red staining showed that the ALP activity was enhanced, and the formation mineralized nodule increased in the 45S5 group compared with those in the control group. The ALP activity weakened, and the formation mineralized nodules were reduced in the 3-MA 45S5 group compared with that those in the 45S5 group.
CONCLUSIONS
Cell autophagy participates in the odontogenic differentiation of APCs induced by 1 mg/mL 45S5 in vitro.
Autophagy/drug effects*
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Cell Differentiation/drug effects*
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Odontogenesis/drug effects*
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Dental Papilla/cytology*
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Humans
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Microtubule-Associated Proteins/metabolism*
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Glass/chemistry*
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Cells, Cultured
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Core Binding Factor Alpha 1 Subunit/metabolism*
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Extracellular Matrix Proteins/metabolism*
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Ceramics/pharmacology*
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Adenine/pharmacology*
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Sialoglycoproteins/metabolism*
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Phosphoproteins/metabolism*
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Integrin-Binding Sialoprotein/metabolism*
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Alkaline Phosphatase/metabolism*
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RNA-Binding Proteins
6.Lipid nanovehicles overcome barriers to systemic RNA delivery: Lipid components, fabrication methods, and rational design.
Jing YAN ; Hao ZHANG ; Guangfeng LI ; Jiacan SU ; Yan WEI ; Can XU
Acta Pharmaceutica Sinica B 2024;14(2):579-601
Lipid nanovehicles are currently the most advanced vehicles used for RNA delivery, as demonstrated by the approval of patisiran for amyloidosis therapy in 2018. To illuminate the unique superiority of lipid nanovehicles in RNA delivery, in this review, we first introduce various RNA therapeutics, describe systemic delivery barriers, and explain the lipid components and methods used for lipid nanovehicle preparation. Then, we emphasize crucial advances in lipid nanovehicle design for overcoming barriers to systemic RNA delivery. Finally, the current status and challenges of lipid nanovehicle-based RNA therapeutics in clinical applications are also discussed. Our objective is to provide a comprehensive overview showing how to utilize lipid nanovehicles to overcome multiple barriers to systemic RNA delivery, inspiring the development of more high-performance RNA lipid nanovesicles in the future.
7.Investigation on vehicle occupant dummy applicability for under-foot impact loading conditions
Teng-Fei TIAN ; Fu-Hao MO ; Hao-Yang SU ; Can HUANG ; Hui ZHAO ; Jun LIU ; Bo SHANG ; Kui LI ; Jin-Long QIU
Chinese Journal of Traumatology 2024;27(4):235-241
Purpose::Under-foot impact loadings can cause serious lower limb injuries in many activities, such as automobile collisions and underbody explosions to military vehicles. The present study aims to compare the biomechanical responses of the mainstream vehicle occupant dummies with the human body lower limb model and analyze their robustness and applicability for assessing lower limb injury risk in underfoot impact loading environments.Methods::The Hybrid III model, the test device for human occupant restraint (THOR) model, and a hybrid human body model with the human active lower limb model were adopted for under-foot impact analysis regarding different impact velocities and initial lower limb postures.Results::The results show that the 2 dummy models have larger peak tibial axial force and higher sensitivity to the impact velocities and initial postures than the human lower limb model. In particular, the Hybrid III dummy model presented extremely larger peak tibial axial forces than the human lower limb model. In the case of minimal difference in tibial axial force, Hybrid III's tibial axial force (7.5 KN) is still 312.5% that of human active lower limb's (2.4 KN). Even with closer peak tibial axial force values, the biomechanical response curve shapes of the THOR model show significant differences from the human lower limb model.Conclusion::Based on the present results, the Hybrid III dummy cannot be used to evaluate the lower limb injury risk in under-foot loading environments. In contrast, potential improvement in ankle biofidelity and related soft tissues of the THOR dummy can be implemented in the future for better applicability.
8.Mechanism study on treatment of abnormal uterine bleeding by Taohong Siwu Tang based on lipidomics
Meng-Yu SU ; Yan-Yan ZHANG ; Rong HUANG ; Yao CHENG ; Shan-Shan QIAN ; Can PENG ; Dai-Yin PENG ; Xiao-Chuang LIU
Chinese Pharmacological Bulletin 2024;40(9):1649-1657
Aim To study the effects of Taohong Siwu Tang(TSD)on serum lipid metabolites in rats with abnormal uterine bleeding(AUB),and to analyze the mechanism of action of TSD in improving lipid metabo-lism disorders in AUB.Methods The rat model of AUB was replicated by the method of incomplete abor-tion with drugs,and the lipid metabolites of serum were detected by applying UPLC-Q-Exactive Orbitrap/MS technology,and combined with the principal com-ponent analysis and orthogonal partial least squares-discriminant analysis to screen for differential lipids,the changes of lipids in serum before and after the in-tervention of TSD were clarified.Results A total of 11 differential lipids were screened,mainly phosphati-dyl inositol,phosphatidic acid,phosphatidyl ethanola-mine,phosphatidyl serine,sterol lipids,ceramide,acrylolipids and fatty acids.The screened differential lipids all tended to regress to normal after the adminis-tration of TSD intervention.Conclusion Improvement of AUB by TSD may be related to lipid metabolism such as phosphatidic acid,phosphatidyl inositol,phos-phatidyl ethanolamine,phosphatidyl serine,and ce-ramide.
9.Expert consensus on integrated traditional Chinese and western medicine diagnosis and treatment for osteoporotic fractures
Dong-Liang WANG ; Fan-Fu FANG ; Chang-Sheng LIU ; Jia-Can SU
China Journal of Orthopaedics and Traumatology 2024;37(3):242-250
Osteoporotic fractures represent the most severe complications of osteoporosis,characterized by insidious onset,high mortality and disability rates,and a steadily increasing incidence,imposing a significant socioeconomic burden.Western medicine has advantages in diagnosis and surgical interventions,while traditional Chinese medicine excels in holistic manage-ment and the restoration of bodily equilibrium.The integration of both traditional Chinese medicine(TCM)and western medicine emerges as an effective therapeutic strategy for osteoporotic fractures.In order to propagate the concept of integrated diagnosis and treatment,foster the advancement of integrated medical techniques for osteoporotic fractures,and establish standardized and nor-mative protocols for disease prevention,diagnosis,and treatment,a consensus expert group,led by Geriatric Branch of Chinese Geriatrics Society,the Young Osteoporosis Group of Orthopedics Branch of Chinese Medical Association,Osteoporosis Group of Orthopedics Branch of Chinese Physician Association,and Osteoporosis Professional Committee of the Shanghai Society of Inte-grated Traditional Chinese and Western Medicine,was established.This group engaged in deliberations and formulated the"Ex-pert Consensus on Integrated Traditional Chinese and Western Medicine Diagnosis and Treatment of Osteoporotic Fractures"elu-cidating the concept of integrated medicine and offering recommendations in the domains of prevention,diagnosis,and treatment,with the aspiration of ameliorating the prognosis of osteoporotic fractures and enhancing the quality of life for these patients.
10.RHD Gene Analysis of A Blood Donor with Del Phenotype.
Zhi-Jiang WANG ; Mo-Zhen PENG ; Zhi-Hui ZHANG ; Qian LI ; Qiu-Jin LI ; Pin-Can SU
Journal of Experimental Hematology 2023;31(3):843-849
OBJECTIVE:
To analyze the RHD genotype of a blood donor with Del phenotype in Yunnan.
METHODS:
Rh serological phenotype was identified. RHD gene was detected by PCR-SSP typing, and its 10 exons were sequenced. Exon 9 was amplified for sequencing and analysis. RHD zygosity was detected.
RESULTS:
The Rh phenotype of this specimen was CcDelee. Genomic DNA exhibited a 1 003 bp deletion spanning from intron 8, across exon 9 into intron 9. The deletion breakpoints occurred between two 7-bp short tandem repeat sequences. There was no variation in the sequences of the remaining exons. The Rh hybridization box test showed that there was one RHD negative allele.
CONCLUSION
This specimen is Del type caused by deletion of RHD exon 9.
Humans
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Blood Donors
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Rh-Hr Blood-Group System/genetics*
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China
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Phenotype
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Exons
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Genotype
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Alleles

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