1.Herbal Textual Research on Dioscoreae Hypoglaucae Rhizoma, Dioscoreae Spongiosae Rhizoma, Smilacis Chinae Rhizoma and Smilacis Glabrae Rhizoma in Famous Classical Formulas
Li LU ; Yichen YANG ; Erhuan WANG ; Hui CHANG ; Li AN ; Shibao WANG ; Cunde MA ; Zhilai ZHAN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):218-247
This article systematically reviews and verifies the medicinal materials of Dioscoreae Hypoglaucae Rhizoma(DHR), Dioscoreae Spongiosae Rhizoma(DSR), Smilacis Chinae Rhizoma(SCR) and Smilacis Glabrae Rhizoma(SGR) from the aspects of name, origin, producing area, quality, harvesting, processing and efficacy by consulting historical literature, in order to provide reference for the development and utilization of famous classical formulas containing the four medicinal materials. DHR, DSR, SCR and SGR have a long history of application as medicinal materials. However, due to their similar growth environment and medicinal properties, as well as their functions of promoting dampness, dispelling wind and removing numbness, there have been instances of homonymous foreign objects and homonymous synonyms throughout history, resulting in confusion of the origin. Therefore, it is necessary to conduct comparative analysis and systematic research for clarifying the historical development and changes of the four, in order to provide a basis for safe and effective medication. According to research, Bixie was first recorded in Shennong Bencaojing and has been historically known as Baizhi, Chijie, Zhumu, and other aliases. From ancient times to the mid-20th century, there has always been a situation where the rhizomes of Dioscorea plants and Smilax plants, and even the rhizomes of Heterosmilax plants, were mixed together to be used as medicinal herbs for Bixie. However, since the Tang dynasty, it has been clearly advocated that the rhizomes of Dioscorea plants have excellent quality and have been the mainstream throughout history. The 2020 edition of Chinese Pharmacopoeia categorized it into two types of medicinal herbs(DHR and DSR). Among them, the origin of DHR is the dry rhizomes of Dioscorea hypoglauca, and the origins of DSR are the dry rhizomes of D. spongiosa and D. futschauensis. In ancient times, due to different types, the corresponding production areas of DHR and DSR were also different. Nowadays, They are mainly produced in the southern region of the Yangtze River. Since the Tang dynasty, the quality of Bixie has been characterized by its white color and soft nature. In modern times, it has been summarized that those with white color, large and thin pieces, powdery texture, tough and elastic texture, and neat and unbreakable are the best. The harvesting times of DHR and DSR are in spring or autumn, with the best quality harvested in autumn. The mainstream processing methods of them are slicing and then using the raw products or wine-processed products. SCR was first recorded in Mingyi Bielu and has been known as Jinganggen, Tielingjiao, Tieshuazi, and other aliases in history. The mainstream source is the dry rhizomes of Smilax china in the past dynasties, with the best quality being those that are tough and rich in powder. The harvesting time is from the late autumn to the following spring, and the main processing method throughout history has been slicing for raw use. SGR was first recorded under the item of Yuyuliang in Variorum of Shennong's Classic of Materia Medica. It was listed as an independent medicinal material from Bencao Gangmu. In history, there were such aliases as Cao Yuyuliang, Lengfantuan, Xianyiliang, Tubixie, etc. The main source of the past dynasties was dry rhizomes of S. glabra. In history, there have also been instances of multiple plants belonging to the same genus, and even cases of mixing the rhizomes of plants in the genus Heterosmilax. It is mainly produced in Guangdong, Hunan, Hubei, Zhejiang, Sichuan, Anhui and other regions, its quality has been summarized as large in size, powdery in texture, with few veins, and light brown in cross-section since modern times. The harvesting time is in spring or autumn, and the main processing method throughout history has been slicing for raw use. DHR, DSR, SCR and SGR all have the effects of promoting dampness, dispelling wind, relieving rheumatism and detoxifying. However, their detoxification abilities are ranked as follows:SGR>SCR>Bixie(DHR and DSR). Especially for the treatment of limb spasms, arthralgia and myalgia, scrofula, and scabies caused by syphilis and mercury poisoning, SGR has a unique effect. Based on the research results, DHR is recommended to develop the famous classical formulas containing Bixie as the first choice for medicinal herbs. It should be harvested in autumn, sliced thinly while fresh, and processed according to the requirements of the famous classical formulas, without any requirements for raw use. Selecting the rhizomes of S. china, harvested in late autumn, and thinly sliced while fresh. If there are no special processing requirements in the formulas, use it raw. Selecting the rhizomes of S. glabra, it is harvested in autumn and thinly sliced while fresh. If there are no special processing requirements in the formulas, raw products can be used.
2.A model based on the graph attention network for epileptic seizure anomaly detection.
Guohua LIANG ; Jina E ; Hanyi LI ; Zhiwen FANG ; Jun WANG ; Chang'an ZHAN ; Feng YANG
Journal of Biomedical Engineering 2025;42(4):693-700
The existing epilepsy seizure detection algorithms have problems such as overfitting and poor generalization ability due to high reliance on manual labeling of electroencephalogram's data and data imbalance between seizure and interictal periods. An unsupervised learning detection method for epileptic seizure that jointed graph attention network (GAT) and Transformer framework (GAT-T) was proposed. In this method, channel correlations were adaptively learned by GAT encoder. Temporal information was captured by one-dimensional convolution decoder. Combining outputs of the two mentioned above, predicted values for electroencephalogram were generated. The collective anomaly score was calculated and the detection threshold was determined. The results demonstrated that GAT-T achieved the average performance exceeding 90% (or 99%) with a 0.25 s (or 2 s) time segment length, which could effectively detect epileptic seizures. Moreover, the channel association probability matrix was expected to assist clinicians in the initial screening of the epileptogenic zone, and ablation experiments also reflected the significance of each module in GAT-T. This study may assist clinicians in making more accurate diagnostic and therapeutic decisions for epilepsy patients.
Humans
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Electroencephalography/methods*
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Epilepsy/physiopathology*
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Algorithms
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Seizures/physiopathology*
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Neural Networks, Computer
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Signal Processing, Computer-Assisted
3.Protective effect of sub-hypothermic mechanical perfusion combined with membrane lung oxygenation on a yorkshire model of brain injury after traumatic blood loss.
Xiang-Yu SONG ; Yang-Hui DONG ; Zhi-Bo JIA ; Lei-Jia CHEN ; Meng-Yi CUI ; Yan-Jun GUAN ; Bo-Yao YANG ; Si-Ce WANG ; Sheng-Feng CHEN ; Peng-Kai LI ; Heng CHEN ; Hao-Chen ZUO ; Zhan-Cheng YANG ; Wen-Jing XU ; Ya-Qun ZHAO ; Jiang PENG
Chinese Journal of Traumatology 2025;28(6):469-476
PURPOSE:
To investigate the protective effect of sub-hypothermic mechanical perfusion combined with membrane lung oxygenation on ischemic hypoxic injury of yorkshire brain tissue caused by traumatic blood loss.
METHODS:
This article performed a random controlled trial. Brain tissue of 7 yorkshire was selected and divided into the sub-low temperature anterograde machine perfusion group (n = 4) and the blank control group (n = 3) using the random number table method. A yorkshire model of brain tissue injury induced by traumatic blood loss was established. Firstly, the perfusion temperature and blood oxygen saturation were monitored in real-time during the perfusion process. The number of red blood cells, hemoglobin content, NA+, K+, and Ca2+ ions concentrations and pH of the perfusate were detected. Following perfusion, we specifically examined the parietal lobe to assess its water content. The prefrontal cortex and hippocampus were then dissected for histological evaluation, allowing us to investigate potential regional differences in tissue injury. The blank control group was sampled directly before perfusion. All statistical analyses and graphs were performed using GraphPad Prism 8.0 Student t-test. All tests were two-sided, and p value of less than 0.05 was considered to indicate statistical significance.
RESULTS:
The contents of red blood cells and hemoglobin during perfusion were maintained at normal levels but more red blood cells were destroyed 3 h after the perfusion. The blood oxygen saturation of the perfusion group was maintained at 95% - 98%. NA+ and K+ concentrations were normal most of the time during perfusion but increased significantly at about 4 h. The Ca2+ concentration remained within the normal range at each period. Glucose levels were slightly higher than the baseline level. The pH of the perfusion solution was slightly lower at the beginning of perfusion, and then gradually increased to the normal level. The water content of brain tissue in the sub-low and docile perfusion group was 78.95% ± 0.39%, which was significantly higher than that in the control group (75.27% ± 0.55%, t = 10.49, p < 0.001), and the difference was statistically significant. Compared with the blank control group, the structure and morphology of pyramidal neurons in the prefrontal cortex and CA1 region of the hippocampal gyrus were similar, and their integrity was better. The structural integrity of granulosa neurons was destroyed and cell edema increased in the perfusion group compared with the blank control group. Immunofluorescence staining for glail fibrillary acidic protein and Iba1, markers of glial cells, revealed well-preserved cell structures in the perfusion group. While there were indications of abnormal cellular activity, the analysis showed no significant difference in axon thickness or integrity compared to the 1-h blank control group.
CONCLUSIONS
Mild hypothermic machine perfusion can improve ischemia and hypoxia injury of yorkshire brain tissue caused by traumatic blood loss and delay the necrosis and apoptosis of yorkshire brain tissue by continuous oxygen supply, maintaining ion homeostasis and reducing tissue metabolism level.
Animals
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Perfusion/methods*
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Disease Models, Animal
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Brain Injuries/etiology*
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Swine
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Male
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Hypothermia, Induced/methods*
4.NINJ1 impairs the anti-inflammatory function of hUC-MSCs with synergistic IFN-γ and TNF-α stimulation.
Wang HU ; Guomei YANG ; Luoquan AO ; Peixin SHEN ; Mengwei YAO ; Yuchuan YUAN ; Jiaoyue LONG ; Zhan LI ; Xiang XU
Chinese Journal of Traumatology 2025;28(4):276-287
PURPOSE:
To investigate the regulatory role of nerve injury-induced protein 1 (NINJ1) in the anti-inflammatory function of human umbilical cord mesenchymal stem cells (hUC-MSCs) co-stimulated by interferon-gamma (IFN-γ) and tumor necrosis factor-alpha (TNF-α).
METHODS:
hUC-MSCs were expanded in vitro using standard protocols, with stem cell characteristics confirmed by flow cytometry and multilineage differentiation assays. The immunomodulatory properties and cellular activity of cytokine-co-pretreated hUC-MSCs were systematically evaluated via quantitative reverse transcription RT-qPCR, lymphocyte proliferation suppression assays, and Cell Counting Kit-8 viability tests. Transcriptome sequencing, Western blotting and small interfering RNA interference were integrated to analyze the regulatory mechanisms of NINJ1 expression. Functional roles of NINJ1 in pretreated hUC-MSCs were elucidated through gene silencing combined with lactate dehydrogenase release assays, Annexin V/Propidium Iodide apoptosis analysis, macrophage co-culture models, and cytokine Enzyme-Linked Immunosorbent Assay. Therapeutic efficacy was validated in a cecal ligation and puncture-induced septic mouse model: 80 mice were randomly allocated into 4 experimental groups (n=20/group): sham group (laparotomy without cecal ligation); phosphate-buffered saline-treated group (cecal ligation and puncture (CLP) + 0.1 mL phosphate-buffered saline); hUC-MSCs (small interfering RNA (siRNA)-interferon-gamma and tumor necrosis factor-alpha co-stimulation (IT))-treated group (CLP + hUC-MSCs transfected with scrambled siRNA); and hUC-MSCs (siNINJ1-IT)-treated group (CLP + hUC-MSCs with NINJ1-targeting siRNA).
RESULTS:
hUC-MSCs demonstrated compliance with International Society for Cellular Therapy criteria, confirming their stem cell identity. IFN-γ/TNF-α co-pretreatment enhanced the immunosuppressive capacity of hUC-MSCs, accompanied by the reduction of cellular viability, while concurrently upregulating pro-inflammatory cytokines such as interleukin-6 and interleukin-1β. This co-stimulation significantly elevated NINJ1 expression in hUC-MSCs, whereas genetic silencing of NINJ1 effectively suppressed pro-inflammatory cytokine production and attenuated damage-associated molecular patterns release through inhibition of programmed plasma membrane rupture. Furthermore, the NINJ1 interference potentiated the ability of cytokine-pretreated hUC-MSCs to suppress LPS-induced pro-inflammatory responses in RAW264.7 macrophages. In cecal ligation and puncture-induced sepsis model, NINJ1-silenced hUC-MSCs exhibited enhanced therapeutic efficacy, manifested by reduced systemic inflammation and multi-organ damage.
CONCLUSION
Our findings shed new light on the immunomodulatory functions of cytokine-primed MSCs, offering groundbreaking insights for developing MSC-based therapies against inflammatory diseases via interfering the expression of NINJ1.
Mesenchymal Stem Cells/drug effects*
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Animals
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Interferon-gamma/pharmacology*
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Tumor Necrosis Factor-alpha/pharmacology*
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Humans
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Mice
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Umbilical Cord/cytology*
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Cells, Cultured
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Apoptosis
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Male
5.Clinical application of single-balloon and double-balloon enteroscopy in pediatric small bowel diseases: a retrospective study of 576 cases.
Can-Lin LI ; Jie-Yu YOU ; Yan-Hong LUO ; Hong-Juan OU-YANG ; Li LIU ; Wen-Ting ZHANG ; Jia-Qi DUAN ; Na JIANG ; Mei-Zheng ZHAN ; Chen-Xi LIU ; Juan ZHOU ; Ling-Zhi YUAN ; Hong-Mei ZHAO
Chinese Journal of Contemporary Pediatrics 2025;27(7):822-828
OBJECTIVES:
To evaluate the effectiveness of single-balloon and double-balloon enteroscopy in diagnosing pediatric small bowel diseases and assess the diagnostic efficacy of computed tomography enterography (CTE) for small bowel diseases using enteroscopy as the reference standard.
METHODS:
Clinical data from 576 children who underwent enteroscopy at Hunan Children's Hospital between January 2017 and December 2023 were retrospectively collected. The children were categorized based on enteroscopy type into the single-balloon enteroscopy (SBE) group (n=457) and double-balloon enteroscopy (DBE) group (n=119), and the clinical data were compared between the two groups. The sensitivity and specificity of CTE for diagnosing small bowel diseases were evaluated using enteroscopy results as the standard.
RESULTS:
Among the 576 children, small bowel lesions were detected by enteroscopy in 274 children (47.6%).There was no significant difference in lesion detection rates or complication rates between the SBE and DBE groups (P>0.05), but the DBE group had deeper insertion, longer procedure time, and higher complete small bowel examination rate (P<0.05). The complication rate during enteroscopy was 4.3% (25/576), with 18 cases (3.1%) of mild complications and 7 cases (1.2%) of severe complications, which improved with symptomatic treatment, surgical, or endoscopic intervention. Among the 412 children who underwent CTE, the sensitivity and specificity for diagnosing small bowel diseases were 44.4% and 71.3%, respectively.
CONCLUSIONS
SBE and DBE have similar diagnostic efficacy for pediatric small bowel diseases, but DBE is preferred for suspected deep small bowel lesions and comprehensive small bowel examination. Enteroscopy in children demonstrates relatively good overall safety. CTE demonstrates relatively low sensitivity but comparatively high specificity for diagnosing small bowel diseases.
Retrospective Studies
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Treatment Outcome
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Double-Balloon Enteroscopy/statistics & numerical data*
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Single-Balloon Enteroscopy/statistics & numerical data*
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Humans
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Male
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Female
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Child
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Operative Time
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Tomography, X-Ray Computed/statistics & numerical data*
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Sensitivity and Specificity
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Intestine, Small/surgery*
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Intestinal Diseases/surgery*
6.Efficacy and safety of denosumab in the treatment of prostate cancer with bone metastases: A systematic review and meta-analysis.
Li YANG ; Bo FANG ; Can-Qin HE ; Xu-Xin ZHAN ; You-Ping XIAO ; Xiao-Jun QIN ; Qiang LOU ; Xue-Jun SHANG
National Journal of Andrology 2025;31(4):349-356
OBJECTIVE:
To evaluate the efficacy and safety of denosumab in the treatment of prostate cancer with bone metastases.
METHODS:
Relevant studies were retrieved from PubMed, EMBASE, Cochrane, Web of Science, Sinomed , CNKI and Wanfang databases. The Cochrane risk-of-bias assessment tool was used to evaluate the quality of included studies, and relevant data were extracted. meta-analysis was performed using RevMan 5.4 and RStudio software, and forest plots were generated.
RESULTS:
Six randomized controlled trials (RCTs) were included. Compared with the control group, denosumab significantly reduced the risk of skeletal-related events (HR=0.78, 95% CI: 0.62-0.93). In terms of safety, denosumab did not increase the risk of total adverse events, severe adverse events and the adverse events higher than CTC grade 3.
CONCLUSION
Denosumab can delay the time to first skeletal-related event with good safety. However, due to the limitations of this study, further high-quality, large-sample, multicenter RCTs are needed to confirm these findings.
Humans
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Denosumab/therapeutic use*
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Bone Neoplasms/drug therapy*
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Prostatic Neoplasms/drug therapy*
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Male
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Randomized Controlled Trials as Topic
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Bone Density Conservation Agents/therapeutic use*
7.Brucea javanica Seed Oil Emulsion and Shengmai Injections Improve Peripheral Microcirculation in Treatment of Gastric Cancer.
Li QUAN ; Wen-Hao NIU ; Fu-Peng YANG ; Yan-da ZHANG ; Ru DING ; Zhi-Qing HE ; Zhan-Hui WANG ; Chang-Zhen REN ; Chun LIANG
Chinese journal of integrative medicine 2025;31(4):299-310
OBJECTIVE:
To explore and verify the effect and potential mechanism of Brucea javanica Seed Oil Emulsion Injection (YDZI) and Shengmai Injection (SMI) on peripheral microcirculation dysfunction in treatment of gastric cancer (GC).
METHODS:
The potential mechanisms of YDZI and SMI were explored through network pharmacology and verified by cellular and clinical experiments. Human microvascular endothelial cells (HMECs) were cultured for quantitative real-time polymerase chain reaction, Western blot analysis, and human umbilical vein endothelial cells (HUVECs) were cultured for tube formation assay. Twenty healthy volunteers and 97 patients with GC were enrolled. Patients were divided into surgical resection, surgical resection with chemotherapy, and surgical resection with chemotherapy combining YDZI and SMI groups. Forearm skin blood perfusion was measured and recorded by laser speckle contrast imaging coupled with post-occlusive reactive hyperemia. Cutaneous vascular conductance and microvascular reactivity parameters were calculated and compared across the groups.
RESULTS:
After network pharmacology analysis, 4 ingredients, 82 active compounds, and 92 related genes in YDZI and SMI were screened out. β-Sitosterol, an active ingredient and intersection compound of YDZI and SMI, upregulated the expression of vascular endothelial growth factor A (VEGFA) and prostaglandin-endoperoxide synthase 2 (PTGS2, P<0.01), downregulated the expression of caspase 9 (CASP9) and estrogen receptor 1 (ESR1, P<0.01) in HMECs under oxaliplatin stimulation, and promoted tube formation through VEGFA. Chemotherapy significantly impaired the microvascular reactivity in GC patients, whereas YDZI and SMI ameliorated this injury (P<0.05 or P<0.01).
CONCLUSIONS
YDZI and SMI ameliorated peripheral microvascular reactivity in GC patients. β-Sitosterol may improve peripheral microcirculation by regulating VEGFA, PTGS2, ESR1, and CASP9.
Humans
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Microcirculation/drug effects*
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Drugs, Chinese Herbal/administration & dosage*
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Stomach Neoplasms/physiopathology*
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Emulsions
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Male
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Plant Oils/administration & dosage*
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Brucea/chemistry*
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Middle Aged
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Female
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Drug Combinations
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Human Umbilical Vein Endothelial Cells/metabolism*
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Seeds/chemistry*
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Injections
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Vascular Endothelial Growth Factor A/metabolism*
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Aged
;
Network Pharmacology
8.Correlation between blood pressure trajectory and hearing threshold among workers exposed to occupational noise in a city's rail transit enterprise
Hongting ZHAN ; Qia WANG ; Xinmei CHEN ; Zhiping LIANG ; Cong LI ; Danyan CAO ; Aichu YANG ; Minghui XIAO
Journal of Environmental and Occupational Medicine 2025;42(6):724-731
Background Hypertension is one of the chronic diseases with the highest prevalence in China, and a history of hypertension may potentially exacerbate hearing loss. Investigating the association between long-term blood pressure trends and hearing thresholds could contribute to hearing protection efforts for occupationally noise-exposed populations. Objective By investigating hearing thresholds and blood pressure levels among occupationally noise-exposed workers in an urban rail transit enterprise, and conducting a comprehensive analysis of the association between long-term blood pressure changes and hearing thresholds, to provide data references for health management strategies targeting occupationally noise-exposed workers. Methods Workers exposed to occupational noise at a rail transit enterprise were enrolled as study subjects and underwent pure-tone audiometry. Group-based trajectory modeling was employed to identify blood pressure trajectories. Categorical data were compared using chi-square tests, while normally distributed continuous variables were analyzed via t-tests and analysis of variance (ANOVA). Generalized linear mixed models (GLMMs) were subsequently applied toexamine associations between these trajectory groups and high-frequency hearing thresholds. Results Among 2 002 occupationally noise-exposed workers, the median (P25, P75) age was 32 (28, 35) years, with a median (P25, P75) working tenure of 7 (3, 10) years. In 2019, the positive hypertension rate was 9.04%, with a mean systolic blood pressure (SBP) of (122.97±11.60) mmHg and a mean diastolic blood pressure (DBP) of (76.37±9.02) mmHg. The hearing loss prevalence was 10.1%, showing bilateral high-frequency average hearing thresholds of (17.18±8.71) dB and speech-frequency average thresholds of (13.79±3.46) dB. Three distinct trajectory groups were identified for both SBP and DBP. Compared with other trajectory groups, the high-stable DBP group exhibited significantly higher hearing loss prevalence (χ2=6.34, P=0.042) and elevated high-frequency hearing thresholds (all Ps<0.05). Specifically, within the 30-39 age subgroup, the moderate-stable DBP group demonstrated 1.96 dB lower high-frequency thresholds than the high-stable group [β(95%CI): −1.96 (−3.61, −0.32), P=0.020]. Conclusion Among occupationally noise-exposed workers in a municipal rail transit enterprise, DBP trajectories demonstrated a positive association with high-frequency hearing thresholds. Notably, in young and middle-aged occupationally noise-exposed populations, DBP may exert a more critical influence than SBP on the progression of hearing loss.
9.Herbal Textual Research on Moschus in Famous Classical Formulas
Juanjuan LIU ; Sini LI ; Jie JI ; Liping YANG ; Houkang CAO ; Xiaohui MA ; Ling JIN ; Zhilai ZHAN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(18):194-202
In this paper, by consulting the ancient and modern literature, the name, origin, quality evaluation, harvesting and processing, and others of the original animal and medicinal materials of Moschus were systematically sorted out and verified, in order to provide the basis for the development and utilization of the famous classical formulas containing Moschus. According to the textual research, musk deer was first recorded in Shanhaijing. Shennong Bencaojing was recorded as Moschus and all generations were used as the correct name, but there were also aliases such as Shefu, Xiangzhang and Xiangqizi. In ancient times, Moschus berezovskii, M. sifanicus and M. moschiferus were the main sources of Moschus, and the quality of Moschus produced in northwest China was better than that produced in the Yangtze River basin. In modern times, Moschus of M. moschiferus produced in northeast China, M. sifanicus produced in Gansu, Sichuan and other places, and M. berezovskii produced in Ningxia, Shaanxi and other places are regarded as genuine. In ancient times, gunshots, lassoes, arrow shots and other methods were generally used to hunt live musk deer, and the sachets were immediately cut off. Those with high quality were called Xiangshanhuo, and dried in the shade after harvesting, which was known as Maoke Shexiang. Cut open the sachet, remove the shell and dry preservation, commonly known as Moschus kernel. In modern times, the method of taking Moschus from the living body of cultured musk deer is adopted, that is, Moschus kernel is directly taken from its sachet, dried in the shade or dried in a closed dryer. This method realizes the sustainable utilization of Chinese herbal medicine resources, but attention should be paid to the frequency and quality of Moschus. The harvesting time is mostly after the autumnal equinox every year, and before the next summer, it is better to gather sachet in winter. In recent times, it is believed that the shell Moschus is dry, full, thin, elastic, loose inside, many particles, strong and persistent aroma for the best, while the Moschus kernel is particle purple-black, powder yellow-brown, soft and oily texture, strong and persistent aroma for the best. The ancient processing method of Moschus was extracting kernels from the shell. After removing impurities, it is ground and used as medicine. Because its composition is not suitable for heating, the processing method is most common in preparations such as grinding into powder and putting into pills or powders, which has the effect of opening up the orifices and refreshing the mind, and it has continued to this day. Based on the research conclusions, it is suggested that the development of famous classical formulas containing Moschus, M. sifanicus, M. moschiferus and M. berezovskii should be used as the origins. According to the processing requirements specified in the original formula, it should be processed and used as medicine, while those without processing requirements should be used as raw products.
10.Analysis of risk prevention behaviors and influencing factors of HIV infection among young students with MSM
Chinese Journal of School Health 2025;46(9):1323-1327
Objective:
To explore the potential category patterns of risk prevention and control behaviors of HIV infection among young students who have sex with men (MSM) and their impact on HIV infection and late detection, aiming to optimize intervention strategies.
Methods:
From September 2017 to December 2024, a total of 1 637 MSM young students in Tianjin were recruited through both online and offline channels. Latent class analysis was applied to classify 11 HIV risk prevention and control behaviors [condom use during the most recent anal sex in the past 6 months, consistent condom use, use of water based lubricants, abstinence from recreational drugs, regular on site professional testing, fixed sexual partners, partner testing, awareness of partner s HIV testing results, testing before sexual activity, nucleic acid testing, and use of pre exposure prophylaxis (PrEP) or post exposure prophylaxis (PEP)]. Multivariate Logistic regression analyzed associations between demographic characteristics/intervention services factors and latent classes. Differences in HIV infection and late detection across behavior patterns were compared.
Results:
HIV risk prevention and control behaviors among MSM students were classified into three latent classes:condom dependent group (38.42%), low prevention group (27.73%), and comprehensive prevention group (33.85%). Students who received condom promotion/testing services were more likely to belong to the comprehensive prevention group ( OR =5.58), while those who received peer education were less likely to the comprehensive prevention group ( OR =0.43) (both P <0.01). Among the MSM student population, the HIV infection rate was 4.83%, with 2.26% of cases detected late. The HIV infection rate (1.45%) and late detection proportion (0.82%) in the comprehensive prevention group were lower than those in the low prevention group (7.89% and 3.83%, respectively) ( χ 2=16.20, 7.31, both P <0.01).
Conclusions
HIV risk prevention and control behaviors among MSM young students exhibit significant heterogeneity. Comprehensive prevention strategies can effectively reduce HIV infection and late detection risks. It is necessary to optimize peer education content and improve the accessibility of diversified prevention measures such as PrEP/PEP to enhance HIV prevention and control.


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