1.Reflections on Status Quo and Development Pathways of Traditional Chinese Medicine Technology Transfer in Context of Digital-intelligent Transformation
Jie ZHANG ; Jing XU ; Guangwei ZHENG ; Huayu ZHANG ; Chang LIU ; Xiaoxiao WEN ; Xishui PAN ; Bin WANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(4):235-240
As a distinctive resource of Chinese civilization, traditional Chinese medicine (TCM) technology transfer faces significant opportunities under the background of digital and intelligent transformation, while also being constrained by unique challenges such as the complexity of its theoretical system, lengthy industrial chains, and multidimensional policy restrictions, resulting in a "high-value-high-threshold" paradox. At present, TCM technology transfer is deeply trapped in a "threefold reluctance" dilemma, i.e., unwillingness to transfer, inability to transfer, and lack of capacity to transfer. Specifically, the disconnection between scientific research evaluation systems and market demand leads to low conversion rates of research achievements, unclear ownership and compliance risks suppress innovation incentives, and the absence of professional services intensifies supply-demand mismatches. This article systematically analyzes the specific characteristics of TCM technology transfer and proposes a breakthrough pathway centered on full-chain digital and intelligent transformation. By integrating technologies such as intelligent sorting systems, blockchain-based traceability, and AI diagnostic models, the TCM ecosystem spanning "cultivation-production-service" can be reconstructed. In terms of standardization, promoting the progression from "experience-based data conversion" to "data standardization" and further to "intelligent standardization" is advocated to resolve quality control challenges. For example, a "three-no-one-full" certification system can strengthen quality trust. Policy coordination should focus on optimizing mechanisms for the transformation of scientific and technological achievements, while exploring intellectual property securitization and risk-sharing models to stimulate research momentum. In terms of internationalization, reliance on the Belt and Road Initiative platform to promote the export of geo-authentic medicinal material brands and standards is recommended to build a dual-driven model of "technology plus culture". Looking ahead, through the construction of national-level databases, the cultivation of interdisciplinary talent, and the mutual recognition of international standards, a new paradigm of "scientific intelligent manufacturing" can be formed, providing systematic solutions for the modernization of TCM and global health governance.
2.Regulatory Role of Huanglian Jiedutang in Microglial Metabolic Reprogramming to Suppress Neuroinflammatory Damage Based on Single-cell Transcriptomics
Zijin SUN ; Haojia ZHANG ; Kai WANG ; Linjing SONG ; Chuanzun WANG ; Wen WANG ; Jing JI ; Zhaoyi WANG ; Wenxiu XU ; Qingguo WANG ; Xueqian WANG ; Fafeng CHENG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):64-73
ObjectiveTo investigate the characteristics of metabolic reprogramming during cerebral ischemia-reperfusion injury using single-cell transcriptome sequencing, analyze the heterogeneity of microglial populations, and evaluate the interventional effects of Huanglian Jiedutang on metabolic abnormalities and neuroinflammation. MethodsA transient middle cerebral artery occlusion (tMCAO) model was used to establish ischemic stroke in mice. Local cerebral blood flow changes were monitored by laser speckle imaging. Neurological impairment was evaluated using the Zea-Longa score, and histopathological damage in brain tissue was observed by HE and Nissl staining. Animals were divided into a sham group, model group, Huanglian Jiedutang group, and Ginkgo biloba extract (GBE) group. After 1 week of acclimatization, intragastric administration was initiated. The sham and model groups received normal saline, the Huanglian Jiedutang group was administered 1.82 g·kg-1, and the GBE group was administered 0.432 g·kg-1 after preparation as a 2.16 mg/mL solution. All groups were treated for 5 consecutive days (0.2 mL/10 g/day), and the tMCAO model was established on day 6 after the final administration. At the molecular level, single-cell RNA sequencing was performed on ischemic hemisphere tissue. Non-negative matrix factorization (NMF) was used to cluster microglial subpopulations, combined with differential expression analysis, metabolic reprogramming assessment, and inflammatory factor correlation analysis to elucidate their functional characteristics in ischemia-reperfusion injury. Transcription factor enrichment analysis was further conducted to identify key regulatory nodes. Finally, PCR was used to detect mRNA expression changes of relevant genes to validate the single-cell sequencing results. ResultsCompared with the sham group, the model group showed increased neurological function scores (P<0.01), decreased blood flow levels (P<0.01), disordered cortical structure, increased cytoplasmic vacuolization, and increased Nissl bodies. Compared with the model group, the Huanglian Jiedutang and GBE groups showed decreased neurological function scores (P<0.01), increased blood flow levels (P<0.01), alleviated cortical structural disorder, reduced cytoplasmic vacuolization, and decreased Nissl bodies. Single-cell analysis showed that microglia could be divided into five subpopulations. Among them, clusters 3 and 5 exhibited significant pro-inflammatory phenotypes, with marked activation of hypoxia and NF-κB signaling pathways, and were identified as pro-inflammatory subpopulations. Clusters 1 and 2 were enriched in Wnt/β-catenin and transforming growth factor(TGF)-β signaling pathways and exhibited prominent anti-inflammatory and reparative characteristics. Meanwhile, glycolysis-related genes, such as HK2, PFKP, and LDHA, were significantly upregulated in the pro-inflammatory subpopulations. Correlation analysis showed that the expression levels of inflammatory molecules were positively correlated with glycolysis-related gene expression levels, whereas the expression levels of reparative and anti-inflammatory molecules were negatively correlated with glycolysis-related gene expression levels, indicating that microglia rely on the glycolytic pathway for energy acquisition under ischemic conditions. Further single-cell transcriptome analysis revealed that Huanglian Jiedutang effectively downregulated key genes driving metabolic reprogramming (such as HK2, PFKP, and LDHA), significantly reduced the proportion of microglial subpopulations accompanied by glycolytic reprogramming, and inhibited their transformation toward a damage phenotype, thereby reducing inflammatory injury. Meanwhile, compared with the sham group, the mRNA expression levels of interleukin (IL)-1β, IL-6, tumor necrosis factor(TNF)-α, CCL2, CXCL2, and CSF3 were significantly upregulated (P<0.01) in the model group, whereas the mRNA expression levels of endothelial- and pericyte-related functional genes, including RGS5, PECAM1, VEGFB, and NOS3, were significantly downregulated (P<0.01). In contrast, compared with the model group, the Huanglian Jiedutang and GBE groups showed significantly decreased mRNA expression levels of IL-1β, IL-6, TNF-α, CCL2, CXCL2, and CSF3 (P<0.01), and significantly increased mRNA expression levels of endothelial- and pericyte-related functional genes, including RGS5, PECAM1, VEGFB, and NOS3 (P<0.01). ConclusionHuanglian Jiedutang exerts neuroprotective effects by regulating the metabolic reprogramming state of microglia and modulating their inflammatory levels, thereby inhibiting neuroinflammatory injury.
3.Regulatory Role of Huanglian Jiedutang in Microglial Metabolic Reprogramming to Suppress Neuroinflammatory Damage Based on Single-cell Transcriptomics
Zijin SUN ; Haojia ZHANG ; Kai WANG ; Linjing SONG ; Chuanzun WANG ; Wen WANG ; Jing JI ; Zhaoyi WANG ; Wenxiu XU ; Qingguo WANG ; Xueqian WANG ; Fafeng CHENG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):64-73
ObjectiveTo investigate the characteristics of metabolic reprogramming during cerebral ischemia-reperfusion injury using single-cell transcriptome sequencing, analyze the heterogeneity of microglial populations, and evaluate the interventional effects of Huanglian Jiedutang on metabolic abnormalities and neuroinflammation. MethodsA transient middle cerebral artery occlusion (tMCAO) model was used to establish ischemic stroke in mice. Local cerebral blood flow changes were monitored by laser speckle imaging. Neurological impairment was evaluated using the Zea-Longa score, and histopathological damage in brain tissue was observed by HE and Nissl staining. Animals were divided into a sham group, model group, Huanglian Jiedutang group, and Ginkgo biloba extract (GBE) group. After 1 week of acclimatization, intragastric administration was initiated. The sham and model groups received normal saline, the Huanglian Jiedutang group was administered 1.82 g·kg-1, and the GBE group was administered 0.432 g·kg-1 after preparation as a 2.16 mg/mL solution. All groups were treated for 5 consecutive days (0.2 mL/10 g/day), and the tMCAO model was established on day 6 after the final administration. At the molecular level, single-cell RNA sequencing was performed on ischemic hemisphere tissue. Non-negative matrix factorization (NMF) was used to cluster microglial subpopulations, combined with differential expression analysis, metabolic reprogramming assessment, and inflammatory factor correlation analysis to elucidate their functional characteristics in ischemia-reperfusion injury. Transcription factor enrichment analysis was further conducted to identify key regulatory nodes. Finally, PCR was used to detect mRNA expression changes of relevant genes to validate the single-cell sequencing results. ResultsCompared with the sham group, the model group showed increased neurological function scores (P<0.01), decreased blood flow levels (P<0.01), disordered cortical structure, increased cytoplasmic vacuolization, and increased Nissl bodies. Compared with the model group, the Huanglian Jiedutang and GBE groups showed decreased neurological function scores (P<0.01), increased blood flow levels (P<0.01), alleviated cortical structural disorder, reduced cytoplasmic vacuolization, and decreased Nissl bodies. Single-cell analysis showed that microglia could be divided into five subpopulations. Among them, clusters 3 and 5 exhibited significant pro-inflammatory phenotypes, with marked activation of hypoxia and NF-κB signaling pathways, and were identified as pro-inflammatory subpopulations. Clusters 1 and 2 were enriched in Wnt/β-catenin and transforming growth factor(TGF)-β signaling pathways and exhibited prominent anti-inflammatory and reparative characteristics. Meanwhile, glycolysis-related genes, such as HK2, PFKP, and LDHA, were significantly upregulated in the pro-inflammatory subpopulations. Correlation analysis showed that the expression levels of inflammatory molecules were positively correlated with glycolysis-related gene expression levels, whereas the expression levels of reparative and anti-inflammatory molecules were negatively correlated with glycolysis-related gene expression levels, indicating that microglia rely on the glycolytic pathway for energy acquisition under ischemic conditions. Further single-cell transcriptome analysis revealed that Huanglian Jiedutang effectively downregulated key genes driving metabolic reprogramming (such as HK2, PFKP, and LDHA), significantly reduced the proportion of microglial subpopulations accompanied by glycolytic reprogramming, and inhibited their transformation toward a damage phenotype, thereby reducing inflammatory injury. Meanwhile, compared with the sham group, the mRNA expression levels of interleukin (IL)-1β, IL-6, tumor necrosis factor(TNF)-α, CCL2, CXCL2, and CSF3 were significantly upregulated (P<0.01) in the model group, whereas the mRNA expression levels of endothelial- and pericyte-related functional genes, including RGS5, PECAM1, VEGFB, and NOS3, were significantly downregulated (P<0.01). In contrast, compared with the model group, the Huanglian Jiedutang and GBE groups showed significantly decreased mRNA expression levels of IL-1β, IL-6, TNF-α, CCL2, CXCL2, and CSF3 (P<0.01), and significantly increased mRNA expression levels of endothelial- and pericyte-related functional genes, including RGS5, PECAM1, VEGFB, and NOS3 (P<0.01). ConclusionHuanglian Jiedutang exerts neuroprotective effects by regulating the metabolic reprogramming state of microglia and modulating their inflammatory levels, thereby inhibiting neuroinflammatory injury.
4.A preliminary investigation on the carriage of Bartonella by rodents at key ports in western Inner Mongolia
Ruo-wen GUO ; Huai-bo WEI ; Peng LUO ; Xia LIU ; Zong-di LIU ; Jing WU ; Jia XU
Acta Parasitologica et Medica Entomologica Sinica 2026;33(2):134-140
Objective This study investigated the diversity of rodent populations and the infection status of Bartonella at three ports along the China-Mongolia border in 2022. Methods Rodents at three Belt and Road ports along the China-Mongolia border, namely Ganqimaodu, Erenhot, and Zhuengadabuqi, were morphologically identified. The Bartonella citrate synthase(gltA)gene was amplified by nested polymerase chain reaction(PCR), and PCR-positive products were sequenced. The resulting sequences were then analyzed for genetic characteristics. Phylogenetic analysis was performed using MEGA 11.0 software using Neighbor-Joining and Maximum-Likelihood method. Results A total of 94 rodents were captured, representing seven species from five families and six genera: Mus musculus, Meriones unguiculatus, Meriones meridianus, Spermophilus dauricus, Allactaga sibirica, Dipus sagitta, and Phodopus roborovskii. Among them, M. unguiculatus was the most abundant species, with 58 rodents, accounting for 61.70% of the total. Overall,11 positive Bartonella pathogen sequences were obtained from the three ports, with a positive detection rate of 11.70%(11/94). The infected rodent species included M. unguiculatus, M. meridianus, and A. sibirica, and two species of Bartonella were detected. Conclusions Rodents at Ganqimaodu, Erenhot, and Zhuengadabuqi ports along the China-Mongolia border were naturally infected with Bartonella. Rodent monitoring and pathogen prevention and control in this area should be strengthened.
5.Combination of CT/MRI LI-RADS With Second-Line Contrast-Enhanced Ultrasound Using Sulfur Hexafluoride or Perfluorobutane for Diagnosing Hepatocellular Carcinoma in High-Risk Patients
Yu LI ; Sheng LI ; Qing LI ; Kai LI ; Jing HAN ; Siyue MAO ; Xiaohong XU ; Zhongzhen SU ; Yanling ZUO ; Shousong XIE ; Hong WEN ; Xuebin ZOU ; Jingxian SHEN ; Lingling LI ; Jianhua ZHOU
Korean Journal of Radiology 2025;26(4):346-359
Objective:
The CT/MRI Liver Imaging Reporting and Data System (LI-RADS) demonstrates high specificity with relatively limited sensitivity for diagnosing hepatocellular carcinoma (HCC) in high-risk patients. This study aimed to explore the possibility of improving sensitivity by combining CT/MRI LI-RADS v2018 with second-line contrast-enhanced ultrasound (CEUS) LI-RADS v2017 using sulfur hexafluoride (SHF) or perfluorobutane (PFB).
Materials and Methods:
This retrospective analysis of prospectively collected multicenter data included high-risk patients with treatment-naive hepatic observations. The reference standard was pathological confirmation or a composite reference standard (only for benign lesions). Each participant underwent concurrent CT/MRI, SHF-enhanced US, and PFB-enhanced US examinations. The diagnostic performances for HCC of CT/MRI LI-RADS alone and three combination strategies (combining CT/ MRI LI-RADS with either LI-RADS SHF, LI-RADS PFB, or a modified algorithm incorporating the Kupffer-phase findings for PFB [modified PFB]) were evaluated. For the three combination strategies, apart from the CT/MRI LR-5 criteria, HCC was diagnosed if CT/MRI LR-3 or LR-4 observations met the LR-5 criteria using LI-RADS SHF, LI-RADS PFB, or modified PFB.
Results:
In total, 281 participants (237 males; mean age, 55 ± 11 years) with 306 observations (227 HCCs, 40 non-HCC malignancies, and 39 benign lesions) were included. Using LI-RADS SHF, LI-RADS PFB, and modified PFB, 20, 23, and 31 CT/MRI LR-3/4 observations, respectively, were reclassified as LR-5, and all were pathologically confirmed as HCCs. Compared to CT/MRI LI-RADS alone (74%, 95% confidence interval [CI]: 68%–79%), the three combination strategies combining CT/MRI LI-RADS with either LI-RADS SHF, LI-RADS PFB, or modified PFB increased sensitivity (83% [95% CI: 77%–87%], 84% [95% CI: 79%–89%], 88% [95% CI: 83%–92%], respectively; all P < 0.001), while maintaining the specificity at 92% (95% CI: 84%–97%).
Conclusion
The combination of CT/MRI LI-RADS with second-line CEUS using SHF or PFB improved the sensitivity of HCC diagnosis without compromising specificity.
6.Combination of CT/MRI LI-RADS With Second-Line Contrast-Enhanced Ultrasound Using Sulfur Hexafluoride or Perfluorobutane for Diagnosing Hepatocellular Carcinoma in High-Risk Patients
Yu LI ; Sheng LI ; Qing LI ; Kai LI ; Jing HAN ; Siyue MAO ; Xiaohong XU ; Zhongzhen SU ; Yanling ZUO ; Shousong XIE ; Hong WEN ; Xuebin ZOU ; Jingxian SHEN ; Lingling LI ; Jianhua ZHOU
Korean Journal of Radiology 2025;26(4):346-359
Objective:
The CT/MRI Liver Imaging Reporting and Data System (LI-RADS) demonstrates high specificity with relatively limited sensitivity for diagnosing hepatocellular carcinoma (HCC) in high-risk patients. This study aimed to explore the possibility of improving sensitivity by combining CT/MRI LI-RADS v2018 with second-line contrast-enhanced ultrasound (CEUS) LI-RADS v2017 using sulfur hexafluoride (SHF) or perfluorobutane (PFB).
Materials and Methods:
This retrospective analysis of prospectively collected multicenter data included high-risk patients with treatment-naive hepatic observations. The reference standard was pathological confirmation or a composite reference standard (only for benign lesions). Each participant underwent concurrent CT/MRI, SHF-enhanced US, and PFB-enhanced US examinations. The diagnostic performances for HCC of CT/MRI LI-RADS alone and three combination strategies (combining CT/ MRI LI-RADS with either LI-RADS SHF, LI-RADS PFB, or a modified algorithm incorporating the Kupffer-phase findings for PFB [modified PFB]) were evaluated. For the three combination strategies, apart from the CT/MRI LR-5 criteria, HCC was diagnosed if CT/MRI LR-3 or LR-4 observations met the LR-5 criteria using LI-RADS SHF, LI-RADS PFB, or modified PFB.
Results:
In total, 281 participants (237 males; mean age, 55 ± 11 years) with 306 observations (227 HCCs, 40 non-HCC malignancies, and 39 benign lesions) were included. Using LI-RADS SHF, LI-RADS PFB, and modified PFB, 20, 23, and 31 CT/MRI LR-3/4 observations, respectively, were reclassified as LR-5, and all were pathologically confirmed as HCCs. Compared to CT/MRI LI-RADS alone (74%, 95% confidence interval [CI]: 68%–79%), the three combination strategies combining CT/MRI LI-RADS with either LI-RADS SHF, LI-RADS PFB, or modified PFB increased sensitivity (83% [95% CI: 77%–87%], 84% [95% CI: 79%–89%], 88% [95% CI: 83%–92%], respectively; all P < 0.001), while maintaining the specificity at 92% (95% CI: 84%–97%).
Conclusion
The combination of CT/MRI LI-RADS with second-line CEUS using SHF or PFB improved the sensitivity of HCC diagnosis without compromising specificity.
7.Contamination risk and drug resistance analysis of Klebsiella pneumoniae in a medical institution in Minghang District, Shanghai, 2021‒2023
Sijia ZHANG ; Xing ZHANG ; Liang TIAN ; Yibin ZHOU ; Xiaosa WEN ; Jing WANG ; Zhiyin XU ; Min WU
Shanghai Journal of Preventive Medicine 2025;37(4):289-295
ObjectiveTo investigate the contamination status, transmission risk and drug resistance of Klebsiella pneumoniae (KP) on the object surfaces in the surrounding environment of hospitalized patients infected with carbapenem-resistant Klebsiella pneumoniae (CRKP) , so as to provide a scientific guidance for the prevention and control of healthcare-associated infection. MethodsSamples from the surfaces of objects in the surrounding environment of CRKP infected patients living in the intensive care unit (ICU) and hand specimens from healthcare workers were collected for KP isolation and identification, as well as drug susceptible test in a medical institution located in Minhang District, Shanghai from 2021 to 2023. Additionally, both univariate and multivariate logistic regression analyses were used to identify the influencing factors associated with KP contamination in the hospital environment. ResultsA total of 546 surface samples were collected from the surrounding environment objects of 15 patients infected with CRKP, with a KP detection rate of 6.59% (36/546).The KP detection rate in the ICU of general ward (10.22%) was higher than that in the ICU of emergency department (2.94%) (χ2=12.142, P<0.001). Moreover, the KP detection rate on the surfaces of patient-contacted items (15.66%) was higher than that on shared-use items (6.25%), cleaning items (10.00%), and medical supplies (3.30%) (χ2=17.943, P<0.001). Besides, the detection rate of KP in items sent out of hospital for disinfection (15.38%) was higher than that in those self-disinfected (4.20%) (χ2=19.996, P<0.001).The highest detection rate of KP was observed in high-temperature washing (15.13%, 18/119) (χ2=21.219, P<0.001), while the lowest detection rate was observed in antibacterial hand sanitizer with trichlorohydroxydiphenyl ether sanitizing factor (0, 0/60) ( χ2=21.219, P<0.001).The detection rate of KP in samples taken more than 24 hours after the last disinfection (23.08%) was higher than that in those taken at 4 to24 hours (12.90%) and less than 4 hours (4.22%) (χ2=23.398,P<0.001).ICU of general ward (OR=4.045, 95%CI: 2.206‒7.416), patient-contacted items (OR=3.113, 95%CI: 1.191‒8.141), and self-disinfection ( OR=0.241, 95%CI:0.144‒0.402) were influencing factors for KP contamination in environmental surface. From 2021 to 2023, the drug resistance rates of hospital environmental KP isolates showed an upward trend (P<0.001) to antibiotics such as ceftazidime and gentamicin. Furthermore, high drug resistance rates of KP (>90%) were observed to ciprofloxacin, levofloxacin, cefotaxime, ceftriaxone, and cefepime. ConclusionCRKP can be transmitted outward through the surfaces of objects in the patients’ surroundings, and the drug resistance situation is severe. In clinical settings, it is necessary to implement isolation measures for CRKP infection patients, to increase the frequency of disinfection for objects in their surroundings, to strengthen hand hygiene practices, and to use antibiotics appropriately.
8.Enhancement of Ca2+ Signal Strength in Astrocytes in the Lateral Septum Improves Cognitive Disorders in Mice After Hemorrhagic Shock and Resuscitation.
Wen-Guang LI ; Lan-Xin LI ; Rong-Xin SONG ; Xu-Peng WANG ; Shi-Yan JIA ; Xiao-Yi MA ; Jing-Yu ZHANG ; Gang-Feng YIN ; Xiao-Ming LI ; Li-Min ZHANG
Neuroscience Bulletin 2025;41(8):1403-1417
Hemorrhagic shock is a common clinical emergency that can aggravate cell injury after resuscitation. Astrocytes are crucial for the survival of neurons because they regulate the surrounding ionic microenvironment of neurons. Although hemorrhagic shock and resuscitation (HSR) injury can impair cognition, it remains unclear how this insult directly affects astrocytes. In this study, we established an HSR model by bleeding and re-transfusion in mice. The social interaction test and new object recognition test were applied to evaluate post-operative cognitive changes, and the results suggest that mice experience cognitive impairment following exposure to HSR. In the HSR group, the power spectral density of β and γ oscillations decreased, and the coupling of the θ oscillation phase and γ oscillation amplitude was abnormal, which indicated abnormal neuronal oscillation and cognitive impairment after HSR exposure. In brief, cognitive impairment in mice is strongly correlated with Ca2+ signal strength in lateral septum astrocytes following HSR.
Animals
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Astrocytes/metabolism*
;
Shock, Hemorrhagic/metabolism*
;
Resuscitation/adverse effects*
;
Male
;
Mice
;
Calcium Signaling/physiology*
;
Mice, Inbred C57BL
;
Septal Nuclei/metabolism*
;
Cognitive Dysfunction/etiology*
;
Disease Models, Animal
;
Cognition Disorders/etiology*
9.Combining transformer and 3DCNN models to achieve co-design of structures and sequences of antibodies in a diffusional manner.
Yue HU ; Feng TAO ; Jiajie XU ; Wen-Jun LAN ; Jing ZHANG ; Wei LAN
Journal of Pharmaceutical Analysis 2025;15(6):101267-101267
Image 1.
10.Brain functional changes following electroacupuncture in a mouse model of comorbid pain and depression: A resting-state functional magnetic resonance imaging study.
Xuan YIN ; Xiao-Ling ZENG ; Jing-Jing LIN ; Wen-Qing XU ; Kai-Yu CUI ; Xiu-Tian GUO ; Wei LI ; Shi-Fen XU
Journal of Integrative Medicine 2025;23(2):159-168
OBJECTIVE:
Comorbid pain and depression are common but remain difficult to treat. Electroacupuncture (EA) can effectively improve symptoms of depression and relieve pain, but its neural mechanism remains unclear. Therefore, we used resting-state functional magnetic resonance imaging (rs-fMRI) to detect cerebral changes after initiating a mouse pain model via constriction of the infraorbital nerve (CION) and then treating these animals with EA.
METHODS:
Forty male C57BL/6J mice were divided into 4 groups: control, CION model, EA, and sham acupuncture (without needle insertion). EA was performed on the acupoints Baihui (GV20) and Zusanli (ST36) for 20 min, once a day for 10 consecutive days. The mechanical withdrawal threshold was tested 3 days after the surgery and every 3 days after the intervention. The depressive behavior was evaluated with the tail suspension test, open-field test, elevated plus maze (EPM), sucrose preference test, and marble burying test. The rs-fMRI was used to detect the cerebral changes of the functional connectivity (FC) in the mice following EA treatment.
RESULTS:
Compared with the CION group, the mechanical withdrawal threshold increased in the EA group at the end of the intervention (P < 0.05); the immobility time in tail suspension test decreased (P < 0.05); and the times of the open arm entry and the open arm time in the EPM increased (both P < 0.001). There was no difference in the sucrose preference or marble burying tests (both P > 0.05). The fMRI results showed that EA treatment downregulated the amplitude of low-frequency fluctuations and regional homogeneity values, while these indicators were elevated in brain regions including the amygdala, hippocampus and cerebral cortex in the CION model for comorbid pain and depression. Selecting the amygdala as the seed region, we found that the FC was higher in the CION group than in the control group. Meanwhile, EA treatment was able to decrease the FC between the amygdala and other brain regions including the caudate putamen, thalamus, and parts of the cerebral cortex.
CONCLUSION
EA can downregulate the abnormal activation of neurons in the amygdala and improve its FC with other brain regions, thus exerting analgesic and antidepressant effects. Please cite this article as: Yin X, Zeng XL, Lin JJ, Xu WQ, Cui KY, Guo XT, Li W, Xu SF. Brain functional changes following electroacupuncture in a mouse model of comorbid pain and depression: a resting-state functional magnetic resonance imaging study. J Integr Med. 2025; 23(2): 159-168.
Animals
;
Electroacupuncture
;
Male
;
Magnetic Resonance Imaging
;
Depression/diagnostic imaging*
;
Mice, Inbred C57BL
;
Brain/diagnostic imaging*
;
Disease Models, Animal
;
Mice
;
Pain/diagnostic imaging*
;
Acupuncture Points


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