1.Expert Consensus on Neurocritical Care Monitoring and Management in Beijing and Tibet(2025)
Drolma PHURBU ; Wenjin CHEN ; Heng ZHANG ; Jian ZHANG ; Xiaomeng WANG ; Guoying LIN ; Wenjun PAN ; Xiying GUI ; Xin CAI ; Chodron TENZIN ; Jianlei FU ; Qianwei LI ; TSEYANG ; Yijun LIU ; Bo LIU ; Tsering DROLMA ; Yudron SONAM ; KYILV ; Samdrup TSERING ; Wa DA ; Juan GUO ; Cheng QIU ; Huan CHEN ; Xiaoting WANG ; Yangong CHAO ; Dawei LIU ; Wenzhao CHAI ; Chenggong HU ; Wanhong YIN ; Shihong ZHU
Medical Journal of Peking Union Medical College Hospital 2026;17(1):59-72
Neurocritical care involves complex pathophysiological mechanisms, and its incidence is higher, injuries are more severe, and treatment is more challenging in high-altitude environments. This consensus, based on the latest domestic and international evidence-based medical data, establishes a standardized, goal-oriented framework for neurocritical care management applicable in high-altitude regions and nationwide. The consensus was developed following international standards for evidence quality assessment and underwent two rounds of Delphi expert consultation, resulting in 32 recommendation statements covering three parts: management systems, monitoring and assessment, and core strategies. Key updates include: advocating for the establishment of independent neurocritical care units and implementing precise tiered diagnosis and treatment based on the "Five Differences in Critical Care" concept; constructing a "trinity" multimodal brain monitoring system centered on cerebral blood flow, cerebral oxygenation, and brain function, emphasizing routine bedside transcranial Doppler ultrasound, cerebral oximetry, and continuous electroencephalography monitoring; shifting management strategies from mild hypothermia therapy to targeted temperature management, and defining the "446" target management pathway for the supercritical stage; emphasizing the assessment of static and dynamic cerebrovascular autoregulation functions through multimodal methods to achieve individualized optimal mean arterial pressure management; elevating cerebrospinal fluid management goals to the level of "glymphatic system" function maintenance; implementing a multidisciplinary collaborative, whole-process management model focusing on patients' long-term neurological functional outcomes; de-escalation criteria include multidimensional indicators such as recovery of brain structure, restoration of cerebrovascular autoregulation, improvement in cerebrospinal fluid dynamics, and reduction in biomarker levels; and integrating cutting-edge technologies like artificial intelligence into post-critical care management and rehabilitation planning. This consensus systematically integrates the entire process of neurocritical care management, reflecting the modern connotation of goal-oriented, dynamic, and multimodal integration in neurocritical care medicine. It aims to adapt to new trends such as deepening understanding of pathophysiological mechanisms, the integration of medicine and engineering, and the empowerment of artificial intelligence, thereby further advancing the discipline of critical care medicine.
2.Dendritic cell subpopulations in the tumor microenvironment: biological behaviors and targeted therapeutic strategies
CUI Jiale ; JI Anjie ; ZHU Ha ; LIU Juan
Chinese Journal of Cancer Biotherapy 2026;33(3):225-232
[摘 要] 树突状细胞(DC)作为抗肿瘤免疫应答的核心启动者与调控者,已成为肿瘤免疫治疗的重要靶点。DC疫苗等靶向DC的免疫治疗策略在抗肿瘤治疗中展现出独特优势,但仍存在抗原提呈效率不足、免疫抑制微环境抵抗、功能特异性调控困难等瓶颈问题。肿瘤微环境(TME)中的DC存在高度异质性,不同DC亚群在分化发育、免疫调控及效应转归方面呈现复杂的多样性。解析DC亚群的精确表型与功能机制对于开发新型DC靶向性免疫治疗策略具有重要意义。TME中募集的经典DC、浆细胞样DC、单核细胞来源DC能与肿瘤浸润免疫细胞和微环境中的非免疫细胞(包括肿瘤细胞、成纤维细胞、内皮细胞等)相互作用激活抗肿瘤免疫应答,而TME还会通过转录调控、表观遗传调控、代谢重塑等多种方式抑制DC招募和抗原提呈能力,甚至诱导其向耐受性DC转化。值得注意的是,新近发现的富含免疫调节分子的成熟DC具有双向免疫调控作用,其起源路径和免疫调控网络仍有待深入研究。随着单细胞分析与空间组学分析等技术的发展,有望在单细胞分辨率下系统解析DC亚群的功能多样性及其与TME的时空相互作用网络,为开发下一代精准免疫治疗策略提供新靶点和新思路。
3.Autophagy regulates early embryonic development in mice via affecting H3K4me3 modification
Jing HU ; Ling ZHU ; Juan XIE ; Deying KONG ; Doudou LIU
Chinese Journal of Tissue Engineering Research 2026;30(5):1147-1155
BACKGROUND:Autophagy,as a key regulatory mechanism of cell development,plays an important role in different stages of embryonic development.The mechanism of how autophagy regulates embryonic development through histone modifications is currently unclear.OBJECTIVE:To investigate the effect of autophagy on trimethylation of lysine 4 on histone H3(H3K4me3)modification in embryos and its effect on embryonic development.METHODS:Mouse fertilized eggs were divided into control and autophagy inhibitor-treated groups(chloroquine phosphate-treated group and 3-methyladenine-treated group),and cultured in vitro to different periods of time,and were then classified as early 2-cell embryos,middle 2-cell embryos,late 2-cell embryos,4-cell embryos,8-cell embryos,morula stage,and blastocyst stage.Levels of reactive oxygen species,autophagy marker proteins LC3B and P62,DNA loss marker γH2AX,and H3K4me3 were analyzed by immunofluorescence assay in late 2-cell embryos of each group.Changes in H3K4me3 modification in late 2-cell embryos of each group were detected by CUT&Tag.RESULTS AND CONCLUSION:(1)Autophagy inhibition caused embryo development arrest.(2)There was no significant difference in reactive oxygen species and γH2AX between the autophagy inhibitor-treated groups and control group.(3)H3K4me3 levels were significantly elevated in the autophagy inhibitor-treated group compared with the control group.(4)CUT&Tag results showed a significantly increased H3K4me3 peaks on the proximal promoter region of the genes after autophagy inhibition and an increase of H3K4me3-specific modification genes.These findings suggest that autophagy may affect embryonic development by regulating the level of H3K4me3 modification.
4.Autophagy regulates early embryonic development in mice via affecting H3K4me3 modification
Jing HU ; Ling ZHU ; Juan XIE ; Deying KONG ; Doudou LIU
Chinese Journal of Tissue Engineering Research 2026;30(5):1147-1155
BACKGROUND:Autophagy,as a key regulatory mechanism of cell development,plays an important role in different stages of embryonic development.The mechanism of how autophagy regulates embryonic development through histone modifications is currently unclear.OBJECTIVE:To investigate the effect of autophagy on trimethylation of lysine 4 on histone H3(H3K4me3)modification in embryos and its effect on embryonic development.METHODS:Mouse fertilized eggs were divided into control and autophagy inhibitor-treated groups(chloroquine phosphate-treated group and 3-methyladenine-treated group),and cultured in vitro to different periods of time,and were then classified as early 2-cell embryos,middle 2-cell embryos,late 2-cell embryos,4-cell embryos,8-cell embryos,morula stage,and blastocyst stage.Levels of reactive oxygen species,autophagy marker proteins LC3B and P62,DNA loss marker γH2AX,and H3K4me3 were analyzed by immunofluorescence assay in late 2-cell embryos of each group.Changes in H3K4me3 modification in late 2-cell embryos of each group were detected by CUT&Tag.RESULTS AND CONCLUSION:(1)Autophagy inhibition caused embryo development arrest.(2)There was no significant difference in reactive oxygen species and γH2AX between the autophagy inhibitor-treated groups and control group.(3)H3K4me3 levels were significantly elevated in the autophagy inhibitor-treated group compared with the control group.(4)CUT&Tag results showed a significantly increased H3K4me3 peaks on the proximal promoter region of the genes after autophagy inhibition and an increase of H3K4me3-specific modification genes.These findings suggest that autophagy may affect embryonic development by regulating the level of H3K4me3 modification.
5.Genetic differentiation of Anopheles sinensis (Diptera: Culicidae) based on COⅠ and ITS2 sequences
Gang WANG ; Chun-juan SHI ; Dan KONG ; Xuan ZHU ; Ji HE ; Ming-hui ZHAO ; Chong-cai WANG
Acta Parasitologica et Medica Entomologica Sinica 2026;33(2):90-95
Objective Exploring genetic differences among geographic strains of Anopheles sinensis in China. Methods Based on the mitochondrial cytochrome oxidase subunit I(COⅠ )and ribosomal the second internal transcribed spacer(ITS2), genetic distance analyses were conducted on An. sinensis samples collected nationwide. Results Genetic differentiation was observed within An. sinensis geographic strains, primarily reflected in the genetic distances of COⅠ sequences, with some distances between samples exceeding those between closely related species. However, ITS2 sequences showed relatively low levels of differentiation within geographic strains. No significant separation was observed, and gene exchange exhibited a random pattern among geographic strains. Conclusions Significant differences in genetic distance were observed among An. sinensis samples, along with evidence of interspecific continuity among sibling species. For the identification of closely related species using wild-collected Anopheles mosquitoes samples, reliance solely on commonly used barcodes such as COⅠ and ITS2 may be insufficient. Additional molecular markers, including COⅡ and D3 gene fragments, should also be considered. Caution should be exercised when using COⅠ genes to identify cryptic species, especially within Anopheles mosquitoes.
6.Fluorescence Suppression Method of Raman Spectroscopy and Its Application in Skin and Cosmetics Analysis
Yun-Xia CHEN ; Jia-Rong WANG ; Jian-Yu ZHU ; Shi-Wen LIN ; Ya-Nan LIU ; Xiao-Yue MA ; Guang-Cheng XI ; Juan LIU
Progress in Biochemistry and Biophysics 2026;53(7):1914-1926
Owing to its inherent advantages—such as being non-destructive, rapid, highly molecule-specific, and minimally interfered with by moisture—Raman spectroscopy has been widely adopted in the fields of skin barrier function assessment, monitoring the transdermal penetration of active cosmetic ingredients, and the identification and quality control of cosmetic products. Despite these strengths, the practical application of this technique faces a significant bottleneck: the strong fluorescence background generated by endogenous skin components and exogenous cosmetic additives. Endogenous skin substances, such as structural proteins (e.g., collagen and elastin), metabolic coenzymes (e.g., nicotinamide adenine dinucleotide), and pigments (e.g., melanin), together with exogenous cosmetic constituents like organic colorants, chemical sunscreens, and fragrances, often possess strong absorption and emission characteristics. When excited by lasers, these components produce a fluorescence background that can be 106 to 108 times stronger than the Raman scattering signals, effectively masking the inherently weak vibrational fingerprint information. In recent years, driven by the rapid development of optoelectronic hardware and artificial intelligence algorithms, fluorescence suppression strategies have evolved from isolated, single-method approaches into comprehensive, multi-level synergistic systems. These systems are categorized into three distinct tiers: sample preparation, signal acquisition, and data processing. At the sample preparation level, techniques such as photobleaching and surface-enhanced Raman spectroscopy (SERS) are employed to eliminate or bypass the generation of fluorescence at the source. At the signal acquisition level, instrumental improvements—including the use of long-wavelength near-infrared excitation (typically 785 nm or 1 064 nm), confocal spatial filtering, and shifted excitation Raman difference spectroscopy (SERDS)— are utilized to physically isolate Raman signals from the fluorescence background. Furthermore, at the data processing level, numerical baseline correction methods such as polynomial fitting, penalized least squares (e.g., airPLS, arPLS), wavelet transform, and derivative algorithms are increasingly integrated into the analytical pipeline to extract Raman spectral features from mixed signals without increasing hardware costs or acquisition time. This review provides a systematic categorization and critical evaluation of these fluorescence suppression methods, detailing their underlying principles, technical advantages, and inherent limitations in diverse experimental setups. By focusing on critical application scenarios—including skin barrier assessment, percutaneous absorption monitoring, the routine quality control of cosmetics, and the emerging field of portable on-site detection—this paper explores the current state of technique selection and optimization. Finally, the article discusses future development trends, emphasizing the necessity of constructing adaptive, tiered suppression strategies, developing intelligent and automated data processing algorithms, and promoting the integration of portable, multi-modal diagnostic devices. The objective of this review is to provide a comprehensive technical reference to facilitate the transition of Raman spectroscopy from a specialized laboratory tool into a routine, robust analytical platform for advancements in skin science and cosmetic research.
7.Effect of Modified Chunzetang on Bladder Fibrosis and Detrusor Function in Rats with Neurogenic Bladder Urinary Retention Induced by Spinal Cord Injury via Regulating NF-κB/TGF-β1 Signaling Pathway
Zhenhua XU ; Yanjie LI ; Yafeng REN ; Haoyuan LIU ; Bochao ZHU ; Juan LIU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):95-103
ObjectiveTo investigate the therapeutic effect and mechanism of modified Chunzetang on bladder fibrosis and detrusor function in rats with neurogenic bladder urinary retention induced by spinal cord injury. MethodsIn this study, an improved Hassan Shaker spinal cord transection method was used to establish a model of neurogenic bladder urinary retention induced by spinal cord injury, and rats with a spinal cord injury behavior score of 0 were selected for follow-up experiments. The selected rats were randomly divided into a model group (normal saline gavage), low-dose traditional Chinese medicine (TCM) group (gavage of 14.4 g·kg-1 modified Chunzetang), high-dose TCM group (gavage of 28.8 g·kg-1 modified Chunzetang), positive drug group [intraperitoneal injection of 0.05 g·kg-1 nuclear transcription factor-κB (NF-κB) inhibitor pyrrolidine dithiocarbamate (PDTC)], and combination group (intraperitoneal injection of 0.05 g·kg-1 PDTC + gavage of 28.8 g·kg-1 modified Chunzetang). The rats in these groups were administrated with corresponding drugs once a day for four weeks. The BL-420s biofunction acquisition system was used in the experiment to calculate the urodynamic indexes, and the isolated bladder was quickly weighed. The detrusor traction experiment was used to record the minimum bladder contraction tension and frequency in each group. The pathological morphology and tissue fibrosis of detrusor in each group observed by Hematoxycin-eosin (HE) staining and Masson staining were compared. The expression level of α-smooth muscle actin (α-SMA) was detected by immunohistochemistry. Western blot was used to detect the protein expression of NF-κB p65, nuclear transcription factor-κB suppressor protein α (IκBα), transforming growth factor-β1 (TGF-β1), type Ⅰ collagen (ColⅠ), and type Ⅲ collagen (ColⅢ) in bladder tissue of rats in each group. Enzyme-linked immunosorbent assay (ELISA) was used to detect the changes in serum levels of IL-6, IL-1β, and TNF-α. ResultsCompared with that in the sham operation group, the pressure at the urinary leakage point in the model group decreased (P<0.01), and the bladder mass, bladder contractile tension, maximum bladder capacity, and bladder compliance increased (P<0.05,P<0.01). HE staining showed that the arrangement of bladder epithelial cells was disordered, and the pathological manifestations such as mucosa and myometria neutrophil infiltration were obvious. The lamina propria structure was destroyed, and the muscle fiber arrangement was disordered. The interstitial widening and tissue edema were obvious. Masson staining showed that the bladder wall of the model group had more collagen fiber deposition, and the degree of detrusor fibrosis was more severe. The content of detrusor in the visual field was reduced. At the same time, the protein expressions of NF-κB p65, TGF-β1, IκBα, ColⅠ, and ColⅢ in bladder tissue of rats in the model group were significantly increased (P<0.01), and the serum levels of IL-6, IL-1β, and TNF-α were significantly increased (P<0.05). Compared with that in the model group, the pressure at the urinary leakage point in the modified Chunzetang and positive drug groups was increased (P<0.05), and the wet bladder weight, minimum bladder contractile tension, maximum bladder capacity, and bladder compliance were restored (P<0.05, P<0.01). HE and Masson showed that the bladder epithelial cells were relatively neatly arranged, and the structure of the bladder lamina propria was relatively stable. The detrusor bundles were arranged in an orderly manner, and the interstitium was narrow. The degree of tissue edema was relatively low, and the degree of bladder detrusor fibrosis in the modified Chunzetang and positive drug groups was reduced, while the degree of bladder detrusor fibrosis in the positive drug group and combination groups was not obvious. The results of Western blot showed that the expression of NF-κB p65, IκBα, TGF-β1, ColⅠ, and ColⅢ in bladder tissue, as well as the serum levels of IL-6, IL-1β, and TNF-α in modified Chunzetang and positive drug groups were significantly lower, and the expression of bladder tissue-related proteins and the serum levels of IL-6, IL-1β, and TNF-α in the TCM groups decreased significantly with the increase in dose (P<0.05). The results of immunohistochemistry suggested that modified Chunzetang could fully affect the expression of α-SMA in bladder tissue. ConclusionModified Chunzetang can inhibit collagen deposition in bladder tissue of rats with urinary retention induced by spinal cord injury, delay the occurrence and development of bladder fibrosis, and protect the normal contractile function of bladder detrusor, and its mechanism may be related to inhibiting the NF-κB/TGF-β1 signaling pathway, reducing the production of NF-κB p65, IκBα, TGF-β1, ColⅠ, ColⅢ, and other related proteins, and protecting the muscle strength of detrusor.
8.Traditional Chinese Medicine Intervenes in Non-alcoholic Fatty Liver Disease by Regulating TLR4 Signaling Pathway: A Review
Zhiwei SU ; Juan XUE ; Jun SUN ; Heng FAN ; Rui ZHU ; Chunyan JI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):291-299
Non-alcoholic fatty liver disease (NAFLD) is a chronic liver disease closely related to metabolism, which is mainly characterized by abnormal lipid deposition in hepatocytes. In recent years, with the increasing prevalence of obesity and metabolic syndrome, NAFLD has become one of the most common chronic diseases in the world. The pathogenesis of NAFLD is complex and varied, involving the cross-regulation of multiple signaling pathways such as glucose-lipid metabolism, oxidative stress, and inflammation. The TLR4 signaling pathway plays a key role in the development and progression of NAFLD, and abnormal activation of this pathway accelerates the deterioration of NAFLD by promoting the release of pro-inflammatory cytokines, inducing oxidative stress, and exacerbating insulin resistance. Studies have shown that traditional Chinese medicine (TCM) can regulate the TLR4 signaling pathway to alleviate the symptoms and pathological features of NAFLD. The present review summarizes the experimental research progress in the TCM regulation of the TLR4 signaling pathway in treating NAFLD in the past 5 years, covering a wide range of TCM active ingredients (such as polysaccharides, terpenoids, alkaloids, flavonoids) and compound prescriptions. The active ingredients and compound prescriptions of TCM can effectively ameliorate lipid metabolism disorders, reduce insulin resistance, regulate intestinal flora, and inhibit inflammation and oxidative stress by regulating the TLR4 signaling pathway via multiple targets and pathways, thus slowing down the progression of NAFLD. Through in-depth analysis of the pathological mechanisms of NAFLD and exploration of the potential of TLR4 signaling pathway as a therapeutic target, we can provide theoretical support for the application of TCM in the treatment of NAFLD, as well as new perspectives and directions for future clinical research and new drug development, thereby promoting the innovation and development of therapeutic strategies for NAFLD.
9.Impact factor selection for non-fatal occupational injuries among manufacturing workers by LASSO regression
Yingheng XIAO ; Chunhua LU ; Juan QIAN ; Ying CHEN ; Yishuo GU ; Zeyun YANG ; Daozheng DING ; Liping LI ; Xiaojun ZHU
Journal of Environmental and Occupational Medicine 2025;42(2):133-139
Background As a pillar industry in China, the manufacturing sector has a high incidence of non-fatal occupational injuries. The factors influencing non-fatal occupational injuries in this industry are closely related at various levels, including individual, equipment, environment, and management, making the analysis of these influencing factors complex. Objective To identify influencing factors of non-fatal occupational injuries among manufacturing workers, providing a basis for targeted interventions and surveillance. Methods A total of
10.Characteristics and influencing factors of occupational injuries among workers in a cable manufacturing enterprise
Ting XU ; Juan QIAN ; Yishuo GU ; Daozheng DING ; Jianjian QIAO ; Yong QIAN ; Xiaojun ZHU ; Jingguang FAN
Journal of Environmental and Occupational Medicine 2025;42(2):140-144
Background Workers in the cable manufacturing industry are exposed to high-speed machinery and equipment for a long time, coupled with heavy workload, which poses significant risks to their physical health. However, the issue of occupational injuries in this industry has not received enough attention yet. Objective To understand the incidence of occupational injury of workers in cable manufacturing industry and to analyze the influencing factors. Method A basic information questionnaire and an occupational injury questionnaire were developed to investigate the occupational injuries of 1 343 workers in a cable manufacturing enterprise in the past year, and a total of 1 225 valid questionnaires were recovered, with an effective rate of 91.2%. Descriptive statistics were used to characterize the causes, injury locations, injury types, and other characteristics of employees’ occupational injuries. Chi-square test was used to analyze the occupational injury status of groups with different demographic characteristics, occupational characteristics, lifestyles, and interpersonal relationships. Logistic regression was used to analyze the influencing factors of occupational injuries. Result The incidence of occupational injuries among workers in a cable manufacturing enterprise in the past year was 8.6%, which mainly happened in male workers (80.0%) and occurred from May to July in summer (45.7%). The main causes were mechanical injuries (32.4%) and object blows (27.6%). The main sources of damage were machinery and equipment (36.2%) as well as raw materials and products (15.2%). The main injuries were located in upper limbs (53.3%) and lower limbs (22.9%). The main types of injuries were fractures (33.3%) and abrasions/contusions/puncture wounds (19.0%). The results of univariate analysis showed that there were statistically significant variations in the incidence of occupational injuries by gender, overtime, pre-job training, years of service in current position, alcohol consumption, physical exercise per week, and co-worker relationship (P<0.05). The logistic regression model showed that workers who exercised less than twice a week, did not participate in pre-job training, worked overtime, and had fair/poor/very poor colleague relationship had a higher risk of occupational injury, while women had a lower risk of occupational injury. Conclusion The distribution of occupational injury population is mainly male, and the time distribution is mainly from May to July. Gender, physical exercise, pre-job training, overtime, and colleague relationship are the influencing factors of occupational injuries. We should strengthen pre-job training, arrange work hours reasonably, and create a good working atmosphere to reduce the occurrence of occupational injuries.


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