1.The Dual Roles of ERK Signaling in Parkinson’s Disease: From Neurotoxicity to Neuroprotection
Chang-Zhi YANG ; Hui WANG ; Min YAN ; Shuai WEI ; Xue-Wen TIAN
Progress in Biochemistry and Biophysics 2026;53(9):2316-2333
Parkinson’s disease (PD) is a progressive neurodegenerative disorder characterized by the loss of dopaminergic neurons in the substantia nigra pars compacta and abnormal accumulation of α‑synuclein. Its pathogenesis involves multiple interconnected processes, including oxidative stress, mitochondrial dysfunction, endoplasmic reticulum stress, neuroinflammation, and impaired protein homeostasis. Extracellular signal-regulated kinase 1/2 (ERK1/2), a major component of the mitogen-activated protein kinase signaling network, plays an important role in neuronal survival, synaptic plasticity, stress responses, and cell death. However, accumulating evidence indicates that ERK signaling in PD is not unidirectional, as both insufficient activity and sustained overactivation have been associated with neuronal dysfunction and disease progression. In this review, we systematically summarize the evidence for the pathological and protective roles of ERK signaling in PD. Insufficient ERK activity may impair neurotrophic support, synaptic plasticity, mitochondrial homeostasis, and neuronal adaptation to stress, thereby increasing the vulnerability of dopaminergic neurons. In contrast, persistent and excessive ERK activation may promote neuroinflammation, oxidative stress, mitochondrial dysfunction, apoptosis, autophagy-lysosomal impairment, and abnormal α-synuclein accumulation. Conversely, moderate and transient ERK activation induced by neurotrophic factors, bioactive compounds, or exercise may enhance neuronal survival, antioxidant defense, synaptic plasticity, and functional recovery. These apparently contradictory findings suggest that ERK activation itself cannot be simply classified as either neuroprotective or neurotoxic. Based on the available evidence, we propose the concept of an “ERK activity window” to explain the context-dependent effects of ERK signaling in PD. This hypothesis suggests that ERK activity needs to remain within an appropriate dynamic range to maintain neuronal homeostasis and adaptive responses. ERK activity below this range may weaken neurotrophic support and stress resistance, whereas prolonged and high-intensity activation may exceed the adaptive capacity of neurons and glial cells, thereby promoting inflammatory and degenerative processes. Importantly, this functional window should not be regarded as a fixed threshold. Its biological effects are likely determined by the intensity and duration of activation, cell type, subcellular localization, upstream stimuli, interaction with other signaling pathways, and disease stage. This framework may therefore help reconcile the apparently inconsistent findings among different PD models and experimental conditions. From a therapeutic perspective, these findings indicate that ERK should not necessarily be considered a target for simple activation or inhibition. Instead, restoring ERK signaling toward an appropriate functional state may represent a more rational strategy. Exercise is of particular interest because it can simultaneously influence neurotrophic signaling, oxidative stress, inflammation, synaptic plasticity, and ERK activity, potentially promoting adaptive remodeling of ERK signaling according to pathological conditions. Nevertheless, current evidence is predominantly derived from cellular and animal studies, and the dynamic, cell-specific, and spatial characteristics of ERK signaling remain insufficiently defined. Blood-brain barrier penetration, long-term safety, preservation of physiological ERK functions, and the lack of reliable biomarkers for monitoring brain ERK activity also limit clinical translation. Importantly, the “ERK activity window” remains a theoretical framework, and direct clinical evidence that ERK modulation can alter the progression of human PD is currently lacking. Future studies should therefore integrate longitudinal analysis, cell-specific and spatial approaches, and clinical biomarker validation to determine whether precise regulation of ERK signaling can provide a viable strategy for disease-modifying intervention in PD.
2.Application of bicuspid pulmonary valve sewn by 0.1 mm expanded polytetrafluoroethylene in right ventricle outflow tract reconstruction
Jianrui MA ; Tong TAN ; Miao TIAN ; Jiazichao TU ; Wen XIE ; Hailong QIU ; Shuai ZHANG ; Jian ZHUANG ; Jimei CHEN ; Jianzheng CEN ; Shusheng WEN ; Haiyun YUAN ; Xiaobing LIU
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2025;32(08):1127-1132
Objective To introduce a modified technique of right ventricular outflow tract (RVOT) reconstruction using a handmade bicuspid pulmonary valve crafted from expanded polytetrafluoroethylene (ePTFE) and to summarize the early single-center experience. Methods Patients with complex congenital heart diseases (CHD) who underwent RVOT reconstruction with a handmade ePTFE bicuspid pulmonary valve due to pulmonary regurgitation at Guangdong Provincial People’s Hospital from April 2021 to February 2022 were selected. Postoperative artificial valve function and right heart function indicators were evaluated. Results A total of 17 patients were included, comprising 10 males and 7 females, with a mean age of (18.18±12.14) years and a mean body weight of (40.94±19.45) kg. Sixteen patients underwent reconstruction with a handmade valved conduit, with conduit sizes ranging from 18 to 24 mm. No patients required mechanical circulatory support, and no in-hospital deaths occurred. During a mean follow-up period of 12.89 months, only one patient developed valve dysfunction, and no related complications or adverse events were observed. The degree of pulmonary regurgitation was significantly improved post-RVOT reconstruction and during follow-up compared to preoperative levels (P<0.001). Postoperative right atrial diameter, right ventricular diameter, and tricuspid regurgitation area were all significantly reduced compared to preoperative values (P<0.05). Conclusion The use of a 0.1 mm ePTFE handmade bicuspid pulmonary valve for RVOT reconstruction in complex CHD is a feasible, effective, and safe technique.
3.Exploration on the Academic Thoughts of Chen Shiduo in the Differentiation and Treatment of Hyperhidrosis
Shuai LIANG ; Luyang LIN ; Yuxuan ZHOU ; Li'an LIU ; Kailong ZHOU ; Qiyu WEN ; Shen'ao TIAN ; Huiyuan SUN
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(6):178-182
This article introduced the experience of physician Chen Shiduo of the Qing Dynasty in treating hyperhidrosis as documented in Bian Zheng Lu.Chen Shiduo proposed several syndromes for hyperhidrosis,including insufficient lung qi,imbalance between the heart and kidney,depletion of kidney yin,excessive stomach fire,and deficiency of heart blood.In terms of treatment,he advocated for methods that focus on reinforcing deficiency and consolidating the exterior while also nourishing yin,clearing heart heat and nourishing kidney water,replenishing true yin to harmonize yin and yang,nourishing stomach yin to reduce fire and stop sweating,and nourishing the heart to enrich blood and drain fire.His medication approach emphasizes harmonizing the internal organs,with a particular expertise in using Mori Folium.His diagnosis and treatment of hyperhidrosis have been remarkably effective and serve as a reference for later generations.
4.Microbe-induced gene silencing targeting VdEno of Verticillium dahliae for the control of cotton Verticillium wilt.
Wen TIAN ; Qianye GUO ; Qing SHUAI ; Qingyan LIU ; Huishan GUO ; Jianhua ZHAO
Chinese Journal of Biotechnology 2025;41(10):3790-3800
Small RNAs (sRNAs), the key components of RNA interference (RNAi) or RNA silencing, can mediate cell-autonomous gene silencing and function as signaling molecules across species. Microbe-induced gene silencing (MIGS), which is based on interspecies RNAi, is an effective approach for controlling fungal diseases in crops. The enolase gene VdEno is essential for the growth and development of the fungal pathogen Verticillium dahliae, which causes cotton Verticillium wilt. In this study, we engineered Trichoderma harzianum (Th) to express the double-stranded RNA (dsRNA) targeting VdEno. The engineered strain Th-VdEnoi successfully generated VdEno-specific small interfering RNA (siVdEno). We further confirmed that Th-VdEnoi effectively induced VdEno silencing at the translational level. The results of crop protection assays revealed that the cotton plants co-inoculated with V. dahliae (strain V592) and Th-VdEnoi presented significantly reduced disease severity and lower fungal biomass in their roots than the control plants inoculated with V. dahliae alone or with V. dahliae and Th-GFPi (a control strain expressing GFP-targeting dsRNA). Collectively, our findings demonstrate that VdEno is an effective target for controlling cotton Verticillium wilt and confirm that MIGS is a promising strategy for managing soil-borne fungal pathogens in crops. MIGS provides strong technical support for reducing the application of conventional chemical pesticides, developing eco-friendly biopesticides, and facilitating the sustainable development of agriculture.
Gossypium/microbiology*
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Plant Diseases/prevention & control*
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Gene Silencing
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Ascomycota/genetics*
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RNA Interference
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RNA, Double-Stranded/genetics*
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Hypocreales/genetics*
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RNA, Small Interfering/genetics*
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Verticillium/genetics*
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Fungal Proteins/genetics*
5.Exploration on the Academic Thoughts of Chen Shiduo in the Differentiation and Treatment of Hyperhidrosis
Shuai LIANG ; Luyang LIN ; Yuxuan ZHOU ; Li'an LIU ; Kailong ZHOU ; Qiyu WEN ; Shen'ao TIAN ; Huiyuan SUN
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(6):178-182
This article introduced the experience of physician Chen Shiduo of the Qing Dynasty in treating hyperhidrosis as documented in Bian Zheng Lu.Chen Shiduo proposed several syndromes for hyperhidrosis,including insufficient lung qi,imbalance between the heart and kidney,depletion of kidney yin,excessive stomach fire,and deficiency of heart blood.In terms of treatment,he advocated for methods that focus on reinforcing deficiency and consolidating the exterior while also nourishing yin,clearing heart heat and nourishing kidney water,replenishing true yin to harmonize yin and yang,nourishing stomach yin to reduce fire and stop sweating,and nourishing the heart to enrich blood and drain fire.His medication approach emphasizes harmonizing the internal organs,with a particular expertise in using Mori Folium.His diagnosis and treatment of hyperhidrosis have been remarkably effective and serve as a reference for later generations.
6.Porcine SIRT5 promotes replication of foot and mouth disease virus type O in PK-15 cells
Guo-Hui CHEN ; Xi-Juan SHI ; Xin-Tian BIE ; Xing YANG ; Si-Yue ZHAO ; Da-Jun ZHANG ; Deng-Shuai ZHAO ; Wen-Qian YAN ; Ling-Ling CHEN ; Mei-Yu ZHAO ; Lu HE ; Hai-Xue ZHENG ; Xia LIU ; Ke-Shan ZHANG
Chinese Journal of Zoonoses 2024;40(5):421-429
The effect of porcine SIRT5 on replication of foot and mouth disease virus type O(FMDV-O)and the underlying regulatory mechanism were investigated.Western blot and RT-qPCR analyses were employed to monitor expression of endoge-nous SIRT5 in PK-15 cells infected with FMDV-O.Three pairs of SIRT5-specific siRNAs were synthesized.Changes to SIRT5 and FMDV-O protein and transcript levels,in addition to virus copy numbers,were measured by western blot and RT-qPCR analyses.PK-15 cells were transfected with a eukaryotic SIRT5 expression plasmid.Western blot and RT-qPCR analyses were used to explore the impact of SIRT5 overexpression on FMDV-O replication.Meanwhile,RT-qPCR analysis was used to detect the effect of SIRT5 overexpression on the mRNA expression levels of type I interferon-stimulated genes induced by SeV and FMDV-O.The results showed that expression of SIRT5 was up-regulated in PK-15 cells infected with FMDV-O and siRNA interfered with SIRT5 to inhibit FMDV-O replication.SIRT5 overexpression promoted FMDV-O replication.SIRT5 over-expression decreased mRNA expression levels of interferon-stimulated genes induced by SeV and FMDV-O.These results suggest that FMDV-O infection stimulated expression of SIRT5 in PK-15 cells,while SIRT5 promoted FMDV-O rep-lication by inhibiting production of type I interferon-stimula-ted genes.These findings provide a reference to further ex-plore the mechanism underlying the ability of porcine SIRT5 to promote FMDV-O replication.
7.Causes and global, regional, and national burdens of traumatic brain injury from 1990 to 2019
Xiao-Fei HUANG ; Shuai-Feng MA ; Xu-Heng JIANG ; Ren-Jie SONG ; Mo LI ; Ji ZHANG ; Tian-Jing SUN ; Quan HU ; Wen-Rui WANG ; An-Yong YU ; He LI
Chinese Journal of Traumatology 2024;27(6):311-322
Purpose::Traumatic brain injury (TBI), currently a major global public health problem, imposes a significant economic burden on society and families. We aimed to quantify and predict the incidence and severity of TBI by analyzing its incidence, prevalence, and years lived with disability (YLDs). The epidemiological changes in TBI from 1990 to 2019 were described and updated to provide a reference for developing prevention, treatment, and incidence-reducing measures for TBI.Methods::A secondary analysis was performed on the incidence, prevalence, and YLDs of TBI by sex, age group, and region ( n =21,204 countries and territories) between 1990 and 2019 using the Global Burden of Diseases, Injuries, and Risk Factors Study 2019. Proportions in the age-standardized incidence rate due to underlying causes of TBI and proportions of minor and moderate or severe TBI were also reported. Results::In 2019, there were 27.16 million (95% uncertainty intervals ( UI): 23.36 -31.42) new cases of TBI worldwide, with age-standardized incidence and prevalence rates of 346 per 100,000 population (95% UI: 298 -401) and 599 per 100,000 population (95% UI: 573 -627), respectively. From 1990 to 2019, there were no significant trends in global age-standardized incidence (estimated annual percentage changes: -0.11%, 95% UI: -0.18% --0.04%) or prevalence (estimated annual percentage changes: 0.01%, 95% UI: -0.04% -0.06%). TBI caused 7.08 million (95% UI: 5.00 -9.59) YLDs in 2019, with age-standardized rates of 86.5 per 100,000 population (95% UI: 61.1 -117.2). In 2019, the countries with higher incidence rates were mainly distributed in Central Europe, Eastern Europe, and Australia. The 2019 global age-standardized incidence rate was higher in males than in females. The 2019 global incidence of moderate and severe TBI was 182.7 per 100,000 population, accounting for 52.8% of all TBI, with falls and road traffic injuries being the main causes in most regions. Conclusions::The incidence of moderate and severe TBI was slightly higher in 2019, and TBI still accounts for a significant portion of the global injury burden. The likelihood of moderate to severe TBI and the trend of major injury under each injury cause from 1990 to 2019 and the characteristics of injury mechanisms in each age group are presented, providing a basis for further research on injury causes in each age group and the future establishment of corresponding policies and protective measures.
8.Relationship between training injuries and sleep,fatigue and mood in Naval recruits
Tailin HE ; Xutong TIAN ; Shuai CUI ; Wen XU ; Wenpeng CAI
Journal of Navy Medicine 2024;45(6):565-569
Objective To investigate the training injuries and physiological and psychological factors of recruits in the first training stage,and to study the relationship between training injuries and sleep,fatigue and emotion.Methods A questionnaire survey was conducted in 1 469 recruits at a naval training base with the Pittsburgh sleep quality index scale(PSQI),fatigue scale-14(FS14),depression anxiety stress scale(DASS-21)and self-designed training injury questionnaire.The incidence of training injuries and the influence of sleep,fatigue and emotions on training injuries were analyzed.Results The incidence of training injuries was 19.1%(280/1 469),and the knee,ankle,and waist and abdomen ranked the top three.The incidence of training injuries among male recruits under 35 years of age was significantly higher than that among female recruits over 36 years old(χ2sex=9.816,P=0.001;χ2age=3.914,P=0.048).There was a correlation between anxiety,stress and sleep quality of officers and soldiers and training injuries(P<0.05).Sleep problems were the mostly direct risk factors for training injuries(OR=1.949,P<0.001).Conclusion Sleep will directly affect the occurrence of training injuries of recruits in the first training stage,and also individual anxiety and other emotions and fatigue accumulation may delay the recovery of training injuries,and even will directly induce additional training injuries.
9.Electroacupuncture alleviates postoperative pain through inhibiting neuroinflammation via stimulator of interferon genes/type-1 interferon pathway.
Yuan-Yuan DING ; Feng XU ; Ya-Feng WANG ; Lin-Lin HAN ; Shi-Qian HUANG ; Shuai ZHAO ; Lu-Lin MA ; Tian-Hao ZHANG ; Wen-Jing ZHAO ; Xiang-Dong CHEN
Journal of Integrative Medicine 2023;21(5):496-508
OBJECTIVE:
This work explores the impact of electroacupuncture (EA) on acute postoperative pain (APP) and the role of stimulator of interferon genes/type-1 interferon (STING/IFN-1) signaling pathway modulation in the analgesic effect of EA in APP rats.
METHODS:
The APP rat model was initiated through abdominal surgery and the animals received two 30 min sessions of EA at bilateral ST36 (Zusanli) and SP6 (Sanyinjiao) acupoints. Mechanical, thermal and cold sensitivity tests were performed to measure the pain threshold, and electroencephalograms were recorded in the primary somatosensory cortex to identify the effects of EA treatment on APP. Western blotting and immunofluorescence were used to examine the expression and distribution of proteins in the STING/IFN-1 pathway as well as neuroinflammation. A STING inhibitor (C-176) was administered intrathecally to verify its role in EA.
RESULTS:
APP rats displayed mechanical and thermal hypersensitivities compared to the control group (P < 0.05). APP significantly reduced the amplitude of θ, α and γ oscillations compared to their baseline values (P < 0.05). Interestingly, expression levels of proteins in the STING/IFN-1 pathway were downregulated after inducing APP (P < 0.05). Further, APP increased pro-inflammatory factors, including interleukin-6, tumor necrosis factor-α and inducible nitric oxide synthase, and downregulated anti-inflammatory factors, including interleukin-10 and arginase-1 (P < 0.05). EA effectively attenuated APP-induced painful hypersensitivities (P < 0.05) and restored the θ, α and γ power in APP rats (P < 0.05). Meanwhile, EA distinctly activated the STING/IFN-1 pathway and mitigated the neuroinflammatory response (P < 0.05). Furthermore, STING/IFN-1 was predominantly expressed in isolectin-B4- or calcitonin-gene-related-peptide-labeled dorsal root ganglion neurons and superficial laminae of the spinal dorsal horn. Inhibition of the STING/IFN-1 pathway by intrathecal injection of C-176 weakened the analgesic and anti-inflammatory effects of EA on APP (P < 0.05).
CONCLUSION
EA can generate robust analgesic and anti-inflammatory effects on APP, and these effects may be linked to activating the STING/IFN-1 pathway, suggesting that STING/IFN-1 may be a target for relieving APP. Please cite this article as: Ding YY, Xu F, Wang YF, Han LL, Huang SQ, Zhao S, Ma LL, Zhang TH, Zhao WJ, Chen XD. Electroacupuncture alleviates postoperative pain through inhibiting neuroinflammation via stimulator of interferon genes/type-1 interferon pathway. J Integr Med. 2023; 21(5): 496-508.
Rats
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Animals
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Rats, Sprague-Dawley
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Neuroinflammatory Diseases
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Electroacupuncture
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Pain, Postoperative
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Interferons
10.Effectiveness of a new health education pathway for echinococcosis control among primary school students in hyper-endemic regions
Yan KUI ; Shuai HAN ; Bai-Xue LIU ; Tian TIAN ; Wen-Jie YU ; Ren-Xin YAO ; Xu WANG ; Wei-Ping WU
Chinese Journal of Schistosomiasis Control 2021;33(3):254-261
Objective To investigate the effectiveness of a new health education pathway for echinococcosis control among primary school students in regions highly prevalent for echinococcosis in China. Methods Six primary schools were randomly selected from echinococcosis hyper-endemic regions, with 13 classes assigned to the intervention group and 9 to the control group, and all students in these 21 classes were recruited as the study subjects. Echinococcosis health education was performed through the pathway of assessing the current status-strengthening the building of teaching resources-focusing on practices in the intervention group, while routine health education was given in the control group. A questionnaire survey was performed to assess the score of echinococcosis control knowledge (including theoretical knowledge score and mean daily practical capability score) before and after the health education interventions to evaluate the effectiveness of this new health education pathway for echinococcosis control. Results The mean score of echinococcosis control knowledge was 68.86 ± 18.70 points at baseline, with the mean theoretical knowledge score of 40.97 ± 10.75 points, and the mean daily practical capability score of 27.89 ± 12.50 points. Clustering analysis showed three types of populations, including “unsatisfactory”, “learn and apply creatively”, and “rote learning”, which accounted for 24.62% (240/975), 45.74% (446/975) and 29.64% (289/975), respectively. The mean score of echinococcosis control knowledge was 81.08 ± 18.15 points in the intervention group during the final assessment, with the mean theoretical knowledge score of 43.65 ± 9.40 points, and the mean daily practical capability score of 37.43 ± 12.22 points, and both were significantly higher relative to baseline (t = −4.201 and −15.202, both P values < 0.01). The mean score of echinococcosis control knowledge was comparable between at baseline (70.55 ± 19.46 points) and final assessment (71.74 ± 19.37 points) in the control group (t = −0.87, P > 0.05). Conclusions The awareness of echinococcosis control knowledge is fair among primary school students in echinococcosis hyper-endemic regions; however, the capability of combining theoretical learning and practices requires to be improved. The health education mode based on the pathway of assessing the current status-strengthening the building of teaching resources-focusing on practices seems to remarkably improve the understanding of echinococcosis control knowledge among primary school students in echinococcosis hyper-endemic regions.

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