1.Regulatory Effect of Danhe Granules on Oxidative Stress in Rats with Mixed Hyperlipidemia
Jingke MENG ; Susu LIU ; Pan GAO ; Mingjiao JIA ; Bochao JIA ; Qingzheng XING ; Yulong CHEN ; Wei WANG ; Xinlou CHAI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(10):112-122
ObjectiveTo investigate the therapeutic mechanism of Danhe granules in treating mixed hyperlipidemia based on network pharmacology, as well as animal and cell experiments. MethodsThe active compounds and targets of Danhe granules were screened using the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP) and the Encyclopedia of Traditional Chinese Medicine (ETCM). Related targets for mixed hyperlipidemia were obtained from the GeneCards database. The intersecting targets were subjected to Gene Ontology (GO) functional annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses. A high-fat model was established in human hepatocellular carcinoma cells (HepG2) induced by palmitic acid (PA), followed by intervention with Danhe granules to assess intracellular lipid accumulation and oxidative stress levels. A mixed hyperlipidemia rat model was also established and divided into low-, medium-, and high-dose Danhe granules groups (1.134, 2.268, and 4.536 g·kg-1, respectively), as well as a positive control group treated with pravastatin sodium (4.020 mg·kg-1). After eight weeks of intervention, serum lipid levels, inflammatory factors, oxidative stress indices, and the expression of key hepatic lipid metabolism-related proteins were determined. ResultsNetwork pharmacology identified 93 intersecting targets between Danhe granules and mixed hyperlipidemia, with peroxisome proliferator-activated receptor gamma (PPARG), peroxisome proliferator-activated receptor alpha (PPARA), tumor necrosis factor (TNF), interleukin-6 (IL-6), and IL-1B among the key nodes. The PPAR signaling pathway, AGE/RAGE signaling pathway, lipid metabolism, atherosclerosis and non-alcoholic fatty liver disease (NAFLD) were among the most significantly enriched pathways. Cellular experiments demonstrated that Danhe granules significantly reduced reactive oxygen species (ROS) and malondialdehyde (MDA) levels while increasing catalase (CAT) activity (P<0.05), thereby alleviating intracellular lipid accumulation and triglyceride (TG) content in HepG2. In animal experiments, Danhe granules markedly decreased serum total cholesterol (TC), TG, and low-density lipoprotein cholesterol (LDL-C) levels (P<0.05), reduced hepatic MDA levels, and elevated superoxide dismutase (SOD) and CAT levels. Histological analysis showed alleviation of hepatic steatosis, upregulation of hepatic PPARA and lipoprotein lipase (LPL) expressions, and downregulation of sterol regulatory element-binding protein 1 (SREBP1) expression (P<0.05, P<0.01). ConclusionDanhe granules improve lipid metabolism disorders in mixed hyperlipidemia by reducing MDA levels, enhancing SOD and CAT activities, scavenging excessive ROS, inhibiting oxidative stress, and mitigating liver injury. The underlying mechanism may involve the upregulation of PPARA and LPL and the suppression of SREBP1 expression.
2.Regulatory Effect of Danhe Granules on Oxidative Stress in Rats with Mixed Hyperlipidemia
Jingke MENG ; Susu LIU ; Pan GAO ; Mingjiao JIA ; Bochao JIA ; Qingzheng XING ; Yulong CHEN ; Wei WANG ; Xinlou CHAI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(10):112-122
ObjectiveTo investigate the therapeutic mechanism of Danhe granules in treating mixed hyperlipidemia based on network pharmacology, as well as animal and cell experiments. MethodsThe active compounds and targets of Danhe granules were screened using the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP) and the Encyclopedia of Traditional Chinese Medicine (ETCM). Related targets for mixed hyperlipidemia were obtained from the GeneCards database. The intersecting targets were subjected to Gene Ontology (GO) functional annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses. A high-fat model was established in human hepatocellular carcinoma cells (HepG2) induced by palmitic acid (PA), followed by intervention with Danhe granules to assess intracellular lipid accumulation and oxidative stress levels. A mixed hyperlipidemia rat model was also established and divided into low-, medium-, and high-dose Danhe granules groups (1.134, 2.268, and 4.536 g·kg-1, respectively), as well as a positive control group treated with pravastatin sodium (4.020 mg·kg-1). After eight weeks of intervention, serum lipid levels, inflammatory factors, oxidative stress indices, and the expression of key hepatic lipid metabolism-related proteins were determined. ResultsNetwork pharmacology identified 93 intersecting targets between Danhe granules and mixed hyperlipidemia, with peroxisome proliferator-activated receptor gamma (PPARG), peroxisome proliferator-activated receptor alpha (PPARA), tumor necrosis factor (TNF), interleukin-6 (IL-6), and IL-1B among the key nodes. The PPAR signaling pathway, AGE/RAGE signaling pathway, lipid metabolism, atherosclerosis and non-alcoholic fatty liver disease (NAFLD) were among the most significantly enriched pathways. Cellular experiments demonstrated that Danhe granules significantly reduced reactive oxygen species (ROS) and malondialdehyde (MDA) levels while increasing catalase (CAT) activity (P<0.05), thereby alleviating intracellular lipid accumulation and triglyceride (TG) content in HepG2. In animal experiments, Danhe granules markedly decreased serum total cholesterol (TC), TG, and low-density lipoprotein cholesterol (LDL-C) levels (P<0.05), reduced hepatic MDA levels, and elevated superoxide dismutase (SOD) and CAT levels. Histological analysis showed alleviation of hepatic steatosis, upregulation of hepatic PPARA and lipoprotein lipase (LPL) expressions, and downregulation of sterol regulatory element-binding protein 1 (SREBP1) expression (P<0.05, P<0.01). ConclusionDanhe granules improve lipid metabolism disorders in mixed hyperlipidemia by reducing MDA levels, enhancing SOD and CAT activities, scavenging excessive ROS, inhibiting oxidative stress, and mitigating liver injury. The underlying mechanism may involve the upregulation of PPARA and LPL and the suppression of SREBP1 expression.
3.Ectopic expression of hemoglobin subunits enhances the in vitro cytotoxicity of CAR-T cells against tumor cells under hypoxic conditions
YANG Jianxun1,2 ; ZHENG Rui3 ; LIANG Sixin3 ; PAN Jie4 ; LI Yanlong5 ; ZHAI Chenxi5 ; ZHAO Xiaojuan2 ; WANG Pengju3 ; DONG Hao4 ; YAN Bo2 ; SUN Zhihong1 ; YANG Angang3
Chinese Journal of Cancer Biotherapy 2026;33(3):233-242
[摘 要] 目的:探讨异位表达血红蛋白亚基(HBA/HBB)对缺氧条件下嵌合抗原受体T细胞(CAR-T细胞)功能障碍的改善作用及其对肿瘤细胞的杀伤效应。方法:全基因合成技术合成靶向HER2的CAR序列,构建共表达HBA或HBB的CAR慢病毒载体,包装慢病毒后感染人原代T淋巴细胞,制备异位表达HBA/HBB的CAR-T细胞,命名为HBA CAR-T和HBB CAR-T。采用缺氧探针检测小鼠实体瘤缺氧状态。通过流式细胞术检测瘤内CAR-T细胞占比、异位表达血红蛋白亚基的CAR-T细胞阳性率及CAR-T细胞的活性氧、凋亡水平。WB法检测HBA CAR-T和HBB CAR-T内相关血红蛋白亚基表达情况,采用细胞计数板计数检测细胞增殖水平,通过萤光素酶报告基因法检测CAR-T细胞对肿瘤细胞的杀伤能力,qPCR检测CAR-T细胞中缺氧诱导因子-1α(HIF-1α)表达水平,利用MitoXpress Intra试剂盒检测CAR-T细胞内氧气含量。结果:不同细胞构建的实体瘤模型均存在明显缺氧情况,且CAR-T细胞浸润水平与缺氧程度呈显著负相关(P < 0.000 1)。HBA CAR-T与HBB CAR-T构建成功(阳性率 > 60%),相应血红蛋白亚基可稳定表达。缺氧环境下HBA CAR-T和HBB CAR-T的ROS水平、凋亡水平显著下降,增殖、对肿瘤细胞的体外杀伤能力显著强于传统CAR-T细胞(均P < 0.05)。HBA CAR-T与HBB CAR-T内HIF-1α表达降低(均P < 0.001),且缺氧程度显著降低(均P < 0.001)。结论:异位表达血红蛋白亚基可改善缺氧条件下CAR-T细胞功能障碍并增强其对肿瘤细胞的体外杀伤作用。
4.Neuroprotective effect and mechanism of eleutheroside B on Parkinson’s disease model mice by regulating the IKKβ/NF-κB signaling pathway
Xiaoli WANG ; Hua RONG ; Siwen PAN ; Chunlei YU ; Tianjiao XU ; Yu SUN ; Huan CONG ; Yu PANG ; Gang CHEN ; Xiaoming LI
China Pharmacy 2026;37(8):998-1002
OBJECTIVE To investigate the neuroprotective effect and mechanism of eleutheroside B (ELB) on Parkinson’s disease (PD) model mice by regulating the IκB kinase β (IKKβ)/nuclear factor-κB (NF-κB) signaling pathway. METHODS Fifty mice were randomly divided into normal control group, model group, positive control group (selegiline hydrochloride, 10 mg/kg), and ELB low-dose and high-dose groups (80, 160 mg/kg), with 10 mice in each group. Each group was given relevant medicine or normal saline intragastrically for 14 consecutive days. Starting from the 10th day of administration, the model group and all administration groups were intraperitoneally injected with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) 30 mg/kg, for five consecutive days to establish the chronic PD model. After the last administration for 24 h, six mice were randomly selected from each group to test their behavioral abilities; detect the levels of interleukin-1β (IL-1β), IL-10, tumor necrosis factor-α (TNF-α) in brain tissue and their mRNA expressions were measured, and positive expression of tyrosine hydroxylase (TH), protein expressions of TH, α -synuclein ( α -syn), ionized calcium-binding adaptor molecule 1 (Iba-1), as well as phosphorylation levels of IKKβ and NF-κB p65 proteins in the brain tissue were detected. The ultrastructure of neurons in substantia nigra was observed. RESULTS Compared with the model group, rotarod endurance time and climbing score of each administration group (except for the ELB low-dose group) were increased significantly ( P <0.05), while the levels and mRNA expressions of IL-1β, TNF-α, α -syn, and Iba-1, as well as phosphorylation levels of IKKβ and NF-κB p65 proteins in brain tissue were decreased significantly (except for TNF-α in the ELB low-dose group). Conversely, the level and mRNA expression of IL-10 (except for the ELB low-dose group), TH positive expression and protein expressions were significantly increased ( P <0.05). Typical neurodegenerative pathological changes, such as neuronal karyopyknosis, mitochondrial swelling and vacuolization, and endoplasmic reticulum dilation, all showed varying degrees of improvement. CONCLUSIONS ELB may exert neuroprotective effects by inhibiting the activation of the IKKβ/NF-κB signaling pathway, alleviating inflammatory responses, reducing abnormal α -syn aggregation and neuronal loss, and further improving motor dysfunction in PD mice.
5.From Cathartic Colon to Cathartic-dependent Constipation: Diagnostic-therapeutic Strategies from Integrative Medicine Perspective
Youcheng HE ; Fengru JIANG ; Yanru WANG ; Minghan HUANG ; Yue WU ; Chunyu ZHOU ; Lian MO ; Lifeng WEI ; Keyi PAN ; Shuyu CAI ; Jianye YUAN
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(11):162-172
Both cathartic colon (CC) and cathartic-dependent constipation (CDC) are caused by the abuse of stimulant laxatives, while their concepts are not completely the same.Starting from the disease name of CC, this article traced the origin and evolution of the concept of CC, summarizes and compared the similarities and differences between CC, CDC, and slow transit constipation (STC), and called for strict differentiation among the three.Furthermore, this article explored the specific contents of Western medicine clinical subtypes and traditional Chinese medicine (TCM) syndrome differentiation of CDC and delved into the TCM pathogenesis of CDC according to both literature and clinical practice.The relationship between clinical subtypes and TCM syndromes was established, and the syndrome characteristics of CDC of different clinical subtypes and TCM syndromes were summarized.The recommended prescriptions for corresponding syndromes were listed.A systematic CDC diagnosis and treatment approach of "clinical subtypes-syndrome differentiation-syndrome characteristics-recommended prescriptions" was thus formed.Additionally, the paper provides an overview of current research on CDC in both Western medicine and TCM contexts, identifies future research directions, and suggests research pathways for refining and advancing CDC studies.
6.Mechanisms of Yishen Juanbi Pills-containing Bone Marrow Fluid in Improving Kidney-deficiency Rheumatoid Arthritis by Regulating CD4+ T Lymphocyte Differentiation via SDF-1/CXCR4 Signaling Pathway
Jinlin TONG ; Yuyao WANG ; Hong LIU ; Jinghua PAN ; Danping FAN ; Hongyan ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(4):90-99
ObjectiveTo investigate the effects of Yishen Juanbi pills (YSJB)-containing bone marrow fluid on the migration and differentiation phenotypes of CD4⁺T lymphocytes based on the stromal cell-derived factor-1/chemokine receptor 4 (SDF-1/CXCR4) signaling pathway. MethodsPrimary CD4⁺T lymphocytes were isolated from mice using magnetic bead separation and identified for purity by flow cytometry. A CD4⁺T lymphocyte culture system was then established to observe the effects of SDF-1 on CD4⁺T-cell migration and differentiation. On this basis, the experimental groups included the Sham group, the ovariectomy (OVX) group, the Sham+collagen-induced arthritis (CIA) group, the OVX+CIA group, the Sham+CIA+YSJB group (2.16 g·kg-1), the OVX+CIA+YSJB group (2.16 g·kg-1), and the OVX+CIA+methotrexate (MTX) group (1.5 mg·kg-1). Bone marrow fluid from each group was prepared according to previous methods and added to the CD4⁺ T-cell culture system at 5% (v/v). Transwell assays were used to examine CD4⁺T-cell migration in each group. Real-time PCR was used to measure the mRNA expression levels of interleukin (IL)-17, tumor necrosis factor-α (TNF-α), retinoic-acid-related orphan receptor γt (RORγt), IL-10, transforming growth factor-β (TGF-β), forkhead box P3 (FoxP3), CXCR4, phosphoinositide 3-kinase (PI3K), and protein kinase B (Akt). Western blot was used to detect the expression of helper T (Th)17/regulatory T (Treg) cell signature factors (RORγt, FoxP3), CXCR4, PI3K, phosphorylated (p)-PI3K, Akt, and p-Akt. In a separate set of experiments, cells were divided into the Sham group, OVX+CIA group, OVX+CIA+CXCR4 antagonist AMD3100 group, and OVX+CIA+YSJB+AMD3100 group to observe changes in the above indicators following AMD3100 intervention. ResultsCompared with the Sham group, the number of migrated cells in the lower chamber was significantly increased in the Sham+CIA and OVX+CIA groups (P<0.05, P<0.01). The mRNA expression of RORγt, IL-17, TNF-α, CXCR4, PI3K, and Akt was significantly upregulated, whereas FoxP3, IL-10, and TGF-β mRNA expression was significantly decreased (P<0.05, P<0.01). Protein expression of RORγt, CXCR4, p-PI3K/PI3K, and p-Akt/Akt was significantly increased, while FoxP3 protein expression was markedly decreased (P<0.05, P<0.01). Compared with the OVX+CIA group, the OVX+CIA+YSJB group and OVX+CIA+MTX group showed significantly reduced migration (P<0.05), mRNA expression of RORγt, IL-17, TNF-α, CXCR4, PI3K, and Akt was also significantly decreased, while FoxP3, IL-10, and TGF-β mRNA expression was significantly increased (P<0.05, P<0.01). RORγt protein expression was significantly downregulated, and FoxP3 protein expression markedly upregulated (P<0.05). In the OVX+CIA+YSJB group, CXCR4, p-PI3K/PI3K, and p-Akt/Akt protein expression was significantly decreased (P<0.05). Compared with the OVX+CIA group, RORγt, CXCR4, PI3K, and Akt mRNA expression in CD4⁺T cells was significantly decreased in the OVX+CIA+AMD3100 group and the OVX+CIA+YSJB+AMD3100 group, while FoxP3 mRNA and protein expression was significantly upregulated (P<0.05, P<0.01). RORγt, CXCR4, p-PI3K/PI3K, and p-Akt/Akt protein expression was also markedly decreased (P<0.05, P<0.01). Compared with the OVX+CIA+AMD3100 group, the OVX+CIA+YSJB+AMD3100 group showed significantly decreased RORγt and Akt mRNA expression (P<0.05) and significantly lower p-Akt/Akt protein expression (P<0.05). ConclusionYSJB-containing bone marrow fluid suppresses CD4⁺T-cell migration and regulates Th17/Treg balance by downregulating Th17-associated signature factors and upregulating Treg-associated signature factors through inhibition of the SDF-1/CXCR4 signaling pathway and PI3K/Akt signaling pathway. The SDF-1/CXCR4 signaling pathway is one of the targets through which YSJB inhibits CD4⁺T-cell differentiation.
7.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.
8.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.
9.Analysis on the practical challenges and paths of “clown doctors” practice from the perspective of narrative medicine
Hui WANG ; Yutong PAN ; Liqun LU ; Can ZHANG
Chinese Medical Ethics 2026;39(2):215-222
Narrative medicine focuses on empathy, relevance, and emotion, precisely aligning with the elements of “clown doctor” such as compassion, interaction, and pain relief. From the perspective of narrative medicine, the practice of “clown doctors” not only focuses on the emotional changes of patients but also enhances their sense of belonging by recreating their experiences. The key element for the success of “clown doctors” lies in establishing a multi-dimensional trust relationship among medical workers, patients, colleagues, and society, while ensuring their practice adheres to medical ethics norms. “Clown doctors” should concentrate on dimensions such as concept dissemination, clinical application, social recognition, and ethical practice of narrative medicine. They should also constantly optimize narrative techniques, deepen the understanding of patients’ stories, and intervene in the medical process in a more delicate and comprehensive way, thereby fostering in-depth communication and understanding between doctors and patients.
10.Comparison of the efficacy and safety of postauricular and intratympanic dexamethasone injection in the treatment of sudden sensorineural hearing loss with all frequency loss
Huidi PAN ; Qingfu BAO ; Changyang WANG
China Pharmacy 2026;37(5):639-644
OBJECTIVE To compare and analyze the clinical efficacy and safety of postauricular versus intratympanic dexamethasone injection in the treatment of sudden sensorineural hearing loss (SSNHL) with all frequency loss. METHODS A retrospective study was conducted on 150 patients with SSNHL with all frequency loss who were treated at the Hospital of Integrated Traditional Chinese and Western Medicine Affiliated to Zhejiang University of Chinese Medicine between June 1, 2020, and May 31, 2025. According to different injection routes, the patients were divided into the intratympanic group (intratympanic injection, n =78) and the postauricular group (postauricular injection, n =72). The differences in hearing threshold indicators and auditory outcomes before and after treatment, tinnitus/vertigo indicators, coagulation function indicators before and after treatment, as well as adverse reactions during treatment were compared between the two groups. RESULTS After treatment, both groups demonstrated significant reductions in the mean speech-frequency threshold and the mean hearing threshold compared with baseline ( P <0.05), whereas no statistically significant differences were observed between the two groups ( P >0.05). Therapeutic outcomes varied significantly across different degrees of hearing loss in each group (intratympanic group: P =0.005; postauricular group: P <0.001). Moreover, a significant linear trend relationship was observed between the degree of hearing loss and treatment efficacy grades ( P <0.001), indicating that the more severe the hearing loss, the poorer the treatment outcome ( P <0.05). Notably, the intratympanic group demonstrated superior efficacy compared with the postauricular group in patients with severe and profound hearing loss ( P <0.05). Among patients presenting with vertigo prior to treatment, the postauricular group exhibited a significantly higher response rate than the intratympanic group ( P <0.05), while no statistically significant difference was observed between the two groups in patients with tinnitus ( P >0.05). Regarding coagulation parameters, fibrinogen (FIB) levels and activated partial thromboplastin time decreased or shortened significantly follo wing therapy ( P <0.05), whereas thrombin time (TT) and prothrombin time were significantly prolonged ( P <0.05). Moreover, the postauricular group showed lower FIB levels and longer TT values compared with the intratympanic group ( P <0.05). No significant differences were identified between the two groups in the incidence of gastrointestinal reactions, bleeding manifestations, hepatic or renal dysfunction, or allergic reactions ( P >0.05); however, vestibular adverse reactions occurred more frequently in the intratympanic group ( P <0.05). CONCLUSIONS Compared with intratympanic injection, postauricular dexamethasone injection combined with conventional treatment regimens achieved comparable efficacy in overall hearing improvement in SSNHL patients with all frequency loss. However, the postauricular injection shows potential advantages in vertigo relief, enhancing treatment response in patients with varying degrees of hearing loss, regulating of coagulation function, and declucing of vestibular adverse reactions, while the intratympanic injection may be more suitable for patients with severe hearing loss.

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