1.Traditional Chinese Medicine Regulates Related Signaling Pathways to Prevent and Control Breast Cancer and Precancerous Lesions: A Review
Yifei ZENG ; Di ZHAO ; Junyue WANG ; Mengjie WANG ; Yubo GUO ; Yu ZHOU ; Dongxiao ZHANG ; Wenjie ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(5):290-301
Breast cancer has become the malignant tumor with the highest incidence rate among women, seriously threatening the life and health of women all over the world. The pathogenic factors and development mechanisms of breast cancer are complex and diverse. The development of breast cells from ordinary hyperplasia to atypical hyperplasia, and from pre-cancerous lesions to cancerous lesions, is a long-term progressive process. Therefore, early screening and prevention of breast cancer is particularly important. Western medicine has a relatively mature treatment program for breast cancer, which is mainly based on surgery and systemic treatment, whereas the ensuing complications and adverse reactions often bring a heavy burden to patients. For the precancerous lesions of breast cancer, surgery is also the mainstay of treatment. In recent years, traditional Chinese medicine (TCM) has increasingly highlighted its advantages in the prevention and treatment of breast cancer. Increasing studies have shown that in the prevention and treatment of breast cancer and pre-cancerous lesions, TCM compound prescriptions, single herbs or herb pairs, and active components are able to regulate a variety of intracellular signaling pathways through multi-targets to inhibit the proliferation and invasion, promote the apoptosis and autophagy of tumor cells, and regulate the cell cycle and the immune microenvironment, thus exerting anti-tumor effects. At the same time, they can significantly attenuate the toxic side effects of radiotherapy and drug resistance of patients. However, the specific mechanisms of TCM in the prevention and treatment of breast cancer and precancerous lesions have not been fully clarified. The available studies are tanglesome regarding the TCM inhibition of tumor development through the regulation of classical signaling pathways such as phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt)/mammalian target of rapamycin (mTOR), Wnt/β-catenin, and Notch, which still need to be verified by a large number of clinical and experimental studies. Therefore, this paper reviews the research progress in the prevention and treatment of breast cancer and precancerous lesions by TCM through interfering with the relevant signaling pathways in recent years, aiming to summarize the possible mechanisms of TCM in the prevention and treatment of breast cancer and provide references for subsequent studies.
2.Association between psychological help seeking intentions and non suicidal self injury among adolescents in Wuhan
SONG Yu, ZHANG Jiaxiu, ZHOU Yang, CHEN Mo
Chinese Journal of School Health 2026;47(1):94-99
Objective:
To explore the latent profiles of psychological help seeking intentions among adolescents in Wuhan, and to investigate their association with non suicidal self injury (NSSI), in order to provide a theoretical basis for constructing an early intervention system for adolescents NSSI.
Methods:
From October to December 2022, a convenient sampling method was used to select 3 975 students from grades 7 to 12 in Wuhan. A self administered questionnaire assessed psychological help seeking intentions, followed by a post survey interview using the Ottawa Self injury Inventory to evaluate NSSI behaviors. Latent profile analysis(LPA) was used to explore the potential categories of help seeking intentions in adolescents. Multinomial Logistic regression was used to analyze factors associated with the latent profiles of help seeking intentions and multiple Logistic regression was used to analyze the association between latent profiles of help seeking intentions and NSSI.
Results:
Based on latent profile analysis, four latent profiles of help seeking intentions in adolescents were identified, namely overall low, moderate, and high help seeking group, as well as family/friendfocused help seeking group, accouting for 14.1%, 20.9%, 43.1% and 21.8%, respectively. Multinomial Logistic regression analysis showed that compared to senior high school students, junior high school students were more willing to seek help from family and friends ( OR =1.56); compared to males, females were more likely to exhibit moderate help seeking intentions( OR =1.37); students with extroverted or balanced personalities were more likely to exhibit high level help seeking intentions( OR =1.50, 1.49); students with average or good family economic status, better parental relationships, and adequate mental health knowledge were more likely to exhibit moderate and high level help seeking intentions( OR =1.59, 2.02; 1.80, 2.64; 1.44, 1.55; 1.34, 1.58) (all P <0.05). Students with moderate or severe family dysfunction were less likely to seek help from family and friends or to exhibit moderate and high level help seeking intentions( OR =0.51, 0.60, 0.25; 0.22, 0.27, 0.06, all P <0.01). Students whose parents exhibited stigma towards mental illness were less likely to show high level help seeking intentions( OR= 0.78 , P <0.05). Multivariable Logistic regression analysis results indicated that compared to the overall low help seeking intentions group, reduced risk of NSSI was observed among students in the overall moderate and overall high groups, as well as in the family/friend focused help seeking group( OR =0.73, 0.60, 0.70, all P <0.05).
Conclusions
Active psychological help seeking intentions can reduce NSSI behaviors in adolescents. Interventions should focus on improving family support environment to enhance adolescents intentions to seek psychological help.
3.Correlation Analysis of Huanglian Jiedu Wan on Syndrome Improvement and Clinical Biomarkers of "Excess Heat-Toxicity" Based on Machine Learning Model
Qi LI ; Keke LUO ; Baolin BIAN ; Hongyu YU ; Mengxiao WANG ; Mengyao TIAN ; Wen XIA ; Yuan MA ; Xinfang ZHANG ; Pengyue LI ; Nan SI ; Hongjie WANG ; Yanyan ZHOU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):162-173
ObjectiveThis paper aims to find the identified and validated clinical biomarker data building upon a clinical study of early-phase phase Ⅱ and investigate the correlation analysis of Huanglian Jiedu Wan on syndrome improvement and clinical biomarkers in the treatment of "excess heat-toxicity" based on a machine learning model. Additionally, the effective prediction of clinical biomarker values for the main symptoms of the "excess heat-toxicity" syndrome was assessed. MethodsA total of 229 patients meeting the inclusion criteria for "excess heat-toxicity" syndrome were randomly divided into the Huanglian Jiedu Wan group and the placebo group. Syndrome score transition matrices were constructed for the Huanglian Jiedu Wan group and the placebo group based on three main symptoms of "excess heat-toxicity" syndrome, such as oral ulcers, sore throat, and gum swelling and pain. Data from the patients with these three syndromes were also integrated for an overall analysis. The corresponding syndrome score transition matrices were further constructed to visualize symptom change trends of the patients in the two groups via heatmaps. Based on the identified and validated clinical biomarkers related to inflammation, oxidative stress, and energy metabolism in the early phase, Spearman correlation analysis was employed to analyze and evaluate the associations between clinical biomarkers and syndrome improvement. Key clinical biomarkers reflecting the effect of Huanglian Jiedu Wan were screened through the comparison of differences between groups. An extreme gradient boosting (XGBoost) algorithm was used to develop a prediction model for main symptom classification, with classification performance evaluated through 10-fold cross-validation. Feature importance analysis was applied to identify variables with the greatest contribution to the prediction result. ResultsThe syndrome transition matrix results indicated that the Huanglian Jiedu Wan group showed a superior effect to the placebo group in improving oral ulcers, sore throat, and overall symptoms, with significant effects observed especially in sore throat and overall symptom analyses (P<0.01). Spearman correlation analysis revealed that several clinical biomarkers positively correlated with "excess heat-toxicity" syndrome and its main symptom improvement, were also called "heat-related biomarkers", including succinic acid, α-ketoglutaric acid, glycine, lactic acid, adenosine monophosphate (AMP), tumor necrosis factor-α (TNF-α), interferon-γ (IFN-γ), interleukin-1β (IL-1β), interleukin-4 (IL-4), interleukin-6 (IL-6), interleukin-8 (IL-8), interleukin-10 (IL-10), and so on. Conversely, clinical biomarkers negatively correlated with symptom severity, were also called "heat-clearing related biomarkers" after administration of Huanglian Jiedu Wan, including malic acid, fumaric acid, cis-aconitic acid, adrenocorticotropic hormone (ACTH), IL-1β, IL-4, IL-8, succinic acid, and citric acid. The XGBoost classification model using all 52 biomarkers as variables achieved an average test accuracy of 0.754 and an average F1 score of 0.777. Feature importance analysis identified the scores of glutamic acid in saliva and IL-6 were the highest in all the variables, with importance scores of 0.081 and 0.080, respectively. After screening out 14 key variables and optimizing the parameters, model performance improved to an average accuracy of 0.758 and an F1 score of 0.798. Feature importance analysis further determined that the glutamic acid in saliva and IL-6 showed obvious changes after screening the variables, confirming the good syndrome prediction ability of the model constructed by these key clinical biomarkers. ConclusionThis study systematically elucidates the correlation between syndrome improvement and clinical biomarkers of Huanglian Jiedu Wan in the treatment of "excess heat-toxicity" syndrome. An XGBoost classification model based on key clinical biomarkers is successfully established, achieving effective prediction of the symptoms related to the "excess heat-toxicity" syndrome such as oral ulcers and sore throat and providing a new insight for objective identification of traditional Chinese medicine syndromes.
4.Association between occupational noise exposure and depressive symptoms among employees in a petrochemical enterprise
Jianye PENG ; Zhuna SU ; Ruilian MO ; Jiaxin LI ; Qisheng WU ; Shiheng FAN ; Bingxian ZHOU ; De’e YU ; Jing ZHANG
Journal of Environmental and Occupational Medicine 2026;43(2):189-195
Background Depressive symptoms have become a significant factor affecting the physical and mental health of the occupational population, and workers in petroleum refining enterprises face multiple stressors in their work environment. Objective To explore the impact of occupational noise exposure on depressive symptoms among workers in a petroleum refining enterprise. Methods This cross-sectional study was conducted in July 2024 using a questionnaire survey among workers of a petroleum refining enterprise in Hainan Province. Basic information of the subjects was collected. The Center for Epidemiologic Studies Depression Scale (CES-D) was used to measure depressive symptoms, the Chinese version of the Pittsburgh Sleep Quality Index (PSQI) scale was used to assess sleep quality, and the Chinese version of the Effort-Reward Imbalance (ERI) scale was used to evaluate occupational stress. Chi-square test was employed to compare the differences in reporting depressive symptoms among populations with different characteristics. Binary logistic regression models were used to analyze the impact of occupational noise exposure and other factors on depressive symptoms. Results The overall positive rate of depressive symptoms in the study population was 42.7%. The results of the multifactor analysis indicated that compared with the control group, employees in both the low-exposure and high-exposure groups had elevated odds of depressive symptoms, with OR (95%CI) of 2.244 (1.131, 4.454) and 1.970 (1.009, 3.850), respectively. This association remained robust after adjusting for potential confounders, including gender, age, work tenure, and other occupational exposures. Additionally, female [OR (95%CI)=1.483 (1.039, 2.118)], exposure to benzene, toluene, or xylene [OR (95%CI)=1.621 (1.208, 2.174)], sleep disturbance [OR (95%CI)=3.772 (2.942, 4.838)], and occupational stress [OR (95%CI)=2.018 (1.575, 2.585)] were also significantly associated with higher odds of depressive symptoms. Conclusion The positive rate of depressive symptoms is relatively high among employees in this petrochemical enterprise, and occupational noise exposure may be a risk factor for depressive symptoms.
5.Correlation Analysis of Huanglian Jiedu Wan on Syndrome Improvement and Clinical Biomarkers of "Excess Heat-Toxicity" Based on Machine Learning Model
Qi LI ; Keke LUO ; Baolin BIAN ; Hongyu YU ; Mengxiao WANG ; Mengyao TIAN ; Wen XIA ; Yuan MA ; Xinfang ZHANG ; Pengyue LI ; Nan SI ; Hongjie WANG ; Yanyan ZHOU
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):162-173
ObjectiveThis paper aims to find the identified and validated clinical biomarker data building upon a clinical study of early-phase phase Ⅱ and investigate the correlation analysis of Huanglian Jiedu Wan on syndrome improvement and clinical biomarkers in the treatment of "excess heat-toxicity" based on a machine learning model. Additionally, the effective prediction of clinical biomarker values for the main symptoms of the "excess heat-toxicity" syndrome was assessed. MethodsA total of 229 patients meeting the inclusion criteria for "excess heat-toxicity" syndrome were randomly divided into the Huanglian Jiedu Wan group and the placebo group. Syndrome score transition matrices were constructed for the Huanglian Jiedu Wan group and the placebo group based on three main symptoms of "excess heat-toxicity" syndrome, such as oral ulcers, sore throat, and gum swelling and pain. Data from the patients with these three syndromes were also integrated for an overall analysis. The corresponding syndrome score transition matrices were further constructed to visualize symptom change trends of the patients in the two groups via heatmaps. Based on the identified and validated clinical biomarkers related to inflammation, oxidative stress, and energy metabolism in the early phase, Spearman correlation analysis was employed to analyze and evaluate the associations between clinical biomarkers and syndrome improvement. Key clinical biomarkers reflecting the effect of Huanglian Jiedu Wan were screened through the comparison of differences between groups. An extreme gradient boosting (XGBoost) algorithm was used to develop a prediction model for main symptom classification, with classification performance evaluated through 10-fold cross-validation. Feature importance analysis was applied to identify variables with the greatest contribution to the prediction result. ResultsThe syndrome transition matrix results indicated that the Huanglian Jiedu Wan group showed a superior effect to the placebo group in improving oral ulcers, sore throat, and overall symptoms, with significant effects observed especially in sore throat and overall symptom analyses (P<0.01). Spearman correlation analysis revealed that several clinical biomarkers positively correlated with "excess heat-toxicity" syndrome and its main symptom improvement, were also called "heat-related biomarkers", including succinic acid, α-ketoglutaric acid, glycine, lactic acid, adenosine monophosphate (AMP), tumor necrosis factor-α (TNF-α), interferon-γ (IFN-γ), interleukin-1β (IL-1β), interleukin-4 (IL-4), interleukin-6 (IL-6), interleukin-8 (IL-8), interleukin-10 (IL-10), and so on. Conversely, clinical biomarkers negatively correlated with symptom severity, were also called "heat-clearing related biomarkers" after administration of Huanglian Jiedu Wan, including malic acid, fumaric acid, cis-aconitic acid, adrenocorticotropic hormone (ACTH), IL-1β, IL-4, IL-8, succinic acid, and citric acid. The XGBoost classification model using all 52 biomarkers as variables achieved an average test accuracy of 0.754 and an average F1 score of 0.777. Feature importance analysis identified the scores of glutamic acid in saliva and IL-6 were the highest in all the variables, with importance scores of 0.081 and 0.080, respectively. After screening out 14 key variables and optimizing the parameters, model performance improved to an average accuracy of 0.758 and an F1 score of 0.798. Feature importance analysis further determined that the glutamic acid in saliva and IL-6 showed obvious changes after screening the variables, confirming the good syndrome prediction ability of the model constructed by these key clinical biomarkers. ConclusionThis study systematically elucidates the correlation between syndrome improvement and clinical biomarkers of Huanglian Jiedu Wan in the treatment of "excess heat-toxicity" syndrome. An XGBoost classification model based on key clinical biomarkers is successfully established, achieving effective prediction of the symptoms related to the "excess heat-toxicity" syndrome such as oral ulcers and sore throat and providing a new insight for objective identification of traditional Chinese medicine syndromes.
6.Textual Research and Application of Famous Classical Formula Huopo Xialingtang
Miao YU ; Huikang ZHANG ; Xiaofan QI ; Fuping LI ; Jichun ZHOU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(3):192-200
Huopo Xialingtang is a famous classical formula for treating dampness and warmth, which is included in the Catalogue of Ancient Famous Classical Formulas(The First Batch). In this paper, bibliometric methods was used to collect the literature related to Huopo Xialingtang, and 16 items of related literature were retrieved, involving five medical books, which were used to textual research on the origin, name, composition, drug dosage, preparation method, processing and main treatment symptoms of this formula. The results indicated that Huopo Xialingtang was originated from Yiyuan written by Shi Funan in the Qing dynasty, and and was later named and extended by He Lianchen. The composition of the proposed formula was consistent with the record of Yiyuan, and the origin of each Chinese materia medica was basically clear. Houpo was the dried bark and root bark of Magnolia officinalis, Zexie was the dried tubers of Alisma orientale, Kuxingren was the dried mature seeds of Prunus armeniaca, Doukou was the dried mature fruits of Amomum kravanh, the origin of Tuhuoxiang was consistent with the 2018 edition of Shanghai Standards of Processing Chinese Crud Drugs, and the origins of the remaining Chinese medicines were consistent with the 2020 edition of Chinese Pharmacopoeia. The converted dose of each Chinese medicine was 7.46 g for Agastache rugosa, 3.73 g for Magnoliae Officinalis Cortex, 8.39 g for Pinelliae Rhizoma Praeparatum cum Zingibere et Alumine, 11.19 g for Poria, 11.19 g for Armeniacae Semen Amarum, 14.92 g for Coicis Semen, 2.61 g for Amomi Fructus Rotundus, 5.60 g for Polyporus, 5.60 g for Alismatis Rhizoma, 14.92 g for Tetrapanacis Medulla. Huopo Xialingtang was initially used for the treatment of dampness and warmth at the beginning of the disease, and was later expanded to treat dampness obstruction, dampness-warming dysentery and so on, but always with the dampness-heat in the lungs and spleen as the pathogenesis. In modern times, the clinical application is more extensive, used in digestive, respiratory, endocrine, nervous system and other types of diseases, especially for chronic gastritis, stomach pain and fever. By combing the ancient literature of Huopo Xialingtang, we verified the origin of the formula and determined the key information of the prescription, which can provide literature reference for the clinical application and drug development of this formula.
7.Signaling Pathways Related to Polycystic Ovary Syndrome and Regulation by Traditional Chinese Medicine: A Review
Manman YAO ; Liya MA ; Dawei ZHANG ; Xuelin ZHANG ; Xuan ZHOU ; Yu TANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(3):301-312
Polycystic ovary syndrome (PCOS) is one of the most prevalent gynecological diseases, and its incidence is increasing year by year, seriously affecting the physical and mental health of female patients. The pathogenesis of this disease is complex and has not been fully clarified. At present, PCOS is mainly treated by Western medicine, which, however, has poor efficacy and induces various adverse reactions. Therefore, developing safe and effective therapies has become a difficult problem that needs to be solved. Studies have confirmed that traditional Chinese medicine (TCM) can regulate phosphatidylinositol 3-kinase/protein kinase B(PI3K/Akt), mitogen-activated protein kinase/extracellular signal-regulated kinase (MAPK/ERK), Toll-like receptor 4/nuclear factor-κB (TLR4/NF-κB), transforming growth factor-β (TGF-β)/Smads, secreted glycoprotein/β-catenin (Wnt/β-catenin), adenosine monophosphate-activated protein kinase (AMPK), and advanced glycation endproduct/receptor for advanced glycation endproducts (AGE/RAGE) signaling pathways to ameliorate insulin resistance, inhibit inflammation and oxidative stress, regulate endocrine hormone disorders, and intervene in apoptosis and autophagy, thus alleviating the symptoms, slowing down the disease progression, and improving the ovarian function. The treatment of PCOS with TCM has demonstrated definite effects and high safety. Therefore, exploring this disease from cellular and molecular perspectives can provide a theoretical basis for its clinical treatment and new drug development. However, there is a lack of systematic reviews on the modulation of relevant signaling pathways by TCM in the treatment of PCOS. This article reviews the research progress in the treatment of PCOS with the active ingredients and compound prescriptions of TCM by regulating relevant signaling pathways in recent years, with the aim of providing evidence to support the promotion of TCM for treating PCOS in the future.
8.Effect of Shenxiong Huanglian Jiedu Decoction on Neuronal Damage and Aβ Clearance in Mice Model of Alzheimer's Disease
Jing LIU ; Kang CHEN ; Yushun ZHOU ; Zhezuo ZHANG ; Guran YU ; Hao LI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(7):43-52
ObjectiveTo investigate the effects of Shenxiong Huanglian Jiedu decoction on the clearance of amyloid β-protein (Aβ) and neuronal damage in the mouse model of Alzheimer's disease (AD). MethodsA total of 36 SPF-grade 2-month-old C57BL/6J mice were used in this study, and the modeling was performed by bilateral hippocampal injection of Aβ oligomers in C57BL/6J mice. The experiment was conducted with a blank group, a sham operation group, a model group, low- and high-dose (3.27,6.54 g·kg-1, respectively) Shenxiong Huanglian Jiedu decoction groups, and a positive control (donepezil hydrochloride, 0.65 mg·kg-1) group. At the end of the drug intervention, the learning and memory abilities and the activities of mice were evaluated by the Morris water maze and open field tests. Brain histopathology was examined by hematoxylin-eosin and Nissl staining. Additionally, in vivo imaging was employed to measure the metabolism of fluorescent Aβ in the cerebrospinal fluid, and staining of ionized calcium-binding adapter molecule-1 (Iba-1) was employed to assess microglial activation in the hippocampal tissue. Additionally, neurotrophin-3 (NT-3) and brain-derived neurotrophic factor (BDNF) levels in the brain tissue and serum were determined by the immunofluorescence assay and enzyme-linked immunosorbent assay. Western blot was conducted to determine the expression of inflammation and pathway-related proteins in the hippocampal tissue. ResultsCompared with the blank group and the sham operation group, the escape latency of the mice in the model group was prolonged, the platform residence time was shortened, the hippocampal tissue showed pathological manifestations such as neuronal pyknosis, Nissl body dissolution, and microglia activation. The metabolic rate of fluorescent Aβ through cerebrospinal fluid was slowed down, and the expression levels of BDNF, NT-3, and interleukin-10 (IL-10) in the hippocampus were significantly decreased (P<0.01). The expression levels of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), interleukin-1β (IL-1β), Toll-like receptor 4 (TLR4), myeloid differentiation factor 88 (MyD88) and phosphorylated nuclear transcription factor-κB (p-NF-κB p65) in hippocampus were significantly increased (P<0.05, P<0.01). Compared with the model group, the escape latency of mice in the low and high dose groups of Chinese medicine and donepezil group was shortened, and the platform residence time was prolonged. Neuronal karyopyknosis, Nissl body dissolution and microglia activation in hippocampus were improved. Fluorescence Aβ was metabolized faster by cerebrospinal fluid. The expression of BDNF and NT-3 in hippocampus was increased (P<0.01), and the expression of TLR4, MyD88 and p-NF-κB p65 was significantly decreased (P<0.05, P<0.01). The expression of TNF-α in the hippocampus of the high-dose group was significantly decreased (P<0.05), and the expression of IL-10 was significantly increased (P<0.05). The expression of TNF-α, IL-6 and IL-1β in the hippocampus of the donepezil group was significantly decreased (P<0.05, P<0.01). ConclusionShenxiong Huanglian Jiedu decoction may mitigate neuronal damage and enhance cerebrospinal fluid flow in the mouse model of AD, thereby promoting the clearance of Aβ and improving the learning and memory abilities. These beneficial effects are likely mediated through the inhibition of microglial activation, reduction of inflammation, and modulation of the TLR4/MyD88/NF-κB signaling pathway.
9.Effect of Shenxiong Huanglian Jiedu Decoction on Neuronal Damage and Aβ Clearance in Mice Model of Alzheimer's Disease
Jing LIU ; Kang CHEN ; Yushun ZHOU ; Zhezuo ZHANG ; Guran YU ; Hao LI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(7):43-52
ObjectiveTo investigate the effects of Shenxiong Huanglian Jiedu decoction on the clearance of amyloid β-protein (Aβ) and neuronal damage in the mouse model of Alzheimer's disease (AD). MethodsA total of 36 SPF-grade 2-month-old C57BL/6J mice were used in this study, and the modeling was performed by bilateral hippocampal injection of Aβ oligomers in C57BL/6J mice. The experiment was conducted with a blank group, a sham operation group, a model group, low- and high-dose (3.27,6.54 g·kg-1, respectively) Shenxiong Huanglian Jiedu decoction groups, and a positive control (donepezil hydrochloride, 0.65 mg·kg-1) group. At the end of the drug intervention, the learning and memory abilities and the activities of mice were evaluated by the Morris water maze and open field tests. Brain histopathology was examined by hematoxylin-eosin and Nissl staining. Additionally, in vivo imaging was employed to measure the metabolism of fluorescent Aβ in the cerebrospinal fluid, and staining of ionized calcium-binding adapter molecule-1 (Iba-1) was employed to assess microglial activation in the hippocampal tissue. Additionally, neurotrophin-3 (NT-3) and brain-derived neurotrophic factor (BDNF) levels in the brain tissue and serum were determined by the immunofluorescence assay and enzyme-linked immunosorbent assay. Western blot was conducted to determine the expression of inflammation and pathway-related proteins in the hippocampal tissue. ResultsCompared with the blank group and the sham operation group, the escape latency of the mice in the model group was prolonged, the platform residence time was shortened, the hippocampal tissue showed pathological manifestations such as neuronal pyknosis, Nissl body dissolution, and microglia activation. The metabolic rate of fluorescent Aβ through cerebrospinal fluid was slowed down, and the expression levels of BDNF, NT-3, and interleukin-10 (IL-10) in the hippocampus were significantly decreased (P<0.01). The expression levels of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), interleukin-1β (IL-1β), Toll-like receptor 4 (TLR4), myeloid differentiation factor 88 (MyD88) and phosphorylated nuclear transcription factor-κB (p-NF-κB p65) in hippocampus were significantly increased (P<0.05, P<0.01). Compared with the model group, the escape latency of mice in the low and high dose groups of Chinese medicine and donepezil group was shortened, and the platform residence time was prolonged. Neuronal karyopyknosis, Nissl body dissolution and microglia activation in hippocampus were improved. Fluorescence Aβ was metabolized faster by cerebrospinal fluid. The expression of BDNF and NT-3 in hippocampus was increased (P<0.01), and the expression of TLR4, MyD88 and p-NF-κB p65 was significantly decreased (P<0.05, P<0.01). The expression of TNF-α in the hippocampus of the high-dose group was significantly decreased (P<0.05), and the expression of IL-10 was significantly increased (P<0.05). The expression of TNF-α, IL-6 and IL-1β in the hippocampus of the donepezil group was significantly decreased (P<0.05, P<0.01). ConclusionShenxiong Huanglian Jiedu decoction may mitigate neuronal damage and enhance cerebrospinal fluid flow in the mouse model of AD, thereby promoting the clearance of Aβ and improving the learning and memory abilities. These beneficial effects are likely mediated through the inhibition of microglial activation, reduction of inflammation, and modulation of the TLR4/MyD88/NF-κB signaling pathway.
10.Analysis of occupational health examination results among medical radiation workers in Hangzhou City
GUAN Fuqiang ; ZHOU Qihong ; ZHANG Tianxi ; YU Huijuan
Journal of Preventive Medicine 2025;37(1):82-85
Objective:
To investigate the occupational health status of medical radiation workers in Hangzhou City, so as to provide the basis for their occupational health risk assessment.
Methods:
Data on medical radiological workers who underwent occupational health examinations from 2021 to 2022 were collected through the Physical Examination Information Management System of the Hangzhou Occupational Disease Prevention and Control Hospital. The physical examination data including blood routine, eye lens, thyroid ultrasound, thyroid function, liver function, renal function and blood lipid were collected, and the abnormal rates of occupational health examinations among workers with different genders, working years and occupational exposure types were analyzed.
Results:
A total of 3 968 medical radiation workers were investigated, including 2 310 males (58.22%) and 1 658 females (41.78%). There were 2 039 (51.39%), 821 (20.69%) and 1 108 (27.92%) workers with 1-<6, 6-<10 years and 10 years and above of work, respectively. Diagnostic radiology was the predomenant type of exposure, with 2 240 workers accounting for 56.45%. The abnormal rates of thyroid ultrasound and blood lipid were 47.73% and 45.21%, respectively, which were relatively higher than other items. The abnormal rates of micronucleus rate, thyroid ultrasound, thyroid function and renal function were higher in females than in males, while the abnormal rates of lymphocyte count, liver function and blood lipid in males were higher in males than in females (all P<0.05). With the increase of working years, the abnormal rates of micronucleus rate and blood lipid showed upward trends (both P<0.05). There were statistically significant differences in the abnormal rates of thyroid ultrasound, liver function and blood lipid among different occupational exposure types (all P<0.05).
Conclusion
Long-term low-dose ionizing radiation environment affects the thyroid, micronucleus rate and blood lipid of medical radiation workers in Hangzhou City, with differences observed among workers with different genders and occupational exposure types.


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