1.Study on the design and detection method of a novel blood pressure measurement system.
Xueji FENG ; Qinkai DENG ; Jinsong GUO ; Feixue LIANG
Chinese Journal of Medical Instrumentation 2013;37(3):173-177
A novel blood pressure measurement system was designed which based on auscultatory method. And the electret sensor that embedded into the internal instrument can detect the Korotkoff-sound signal directly which is coupled by the cuff and transmitted in the cross connection. The BP values identification algorithm is based on combined detection of Korotkoff-sound and pulse signal, and the products of amplitudes and energies are calculated as the characteristic values of Korotkoff-sound, and the Korotkoff-sound phases are classified and detected by means of clustering of characteristic values, and then BP parameters are determined. The contrast test and statistical analysis showed good consistency and accuracy between the new BP detection method and conventional mercury sphygmomanometer.
Blood Pressure
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Blood Pressure Determination
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instrumentation
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methods
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Equipment Design
2.Regulation of Ferroptosis by Traditional Chinese Medicine for Colorectal Cancer Intervention: A Review
Xiangchen LIU ; Weihan ZHAO ; Feixue FENG ; Xiaodong YANG ; Zhilong ZHAO ; Dezhen YANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(12):276-286
Colorectal cancer (CRC) is a common malignant tumor of the digestive tract with high morbidity and mortality. Although existing treatments can prolong the survival of patients, problems such as low quality of life, obvious side effects, and unsatisfactory clinical efficacy still exist, which cannot fully satisfy the overall needs of patients. For this reason, it is crucial to explore the mechanism underlying the development of CRC and to identify new treatment strategies. In recent years, with the deepening of research, ferroptosis has been gradually proven to effectively inhibit the proliferation and metastasis of CRC cells, overcome tumor drug resistance, enhance anti-tumor efficacy, and prevent tumor progression and recurrence. Therefore, regulating ferroptosis is expected to become a new strategy for the treatment of CRC. Traditional Chinese medicine (TCM) has been widely used in CRC treatment due to its advantages of multiple components, multiple targets, low drug resistance, and few side effects, and has gradually become a current research hotspot. Extensive studies have shown that TCM active ingredients and compound formulae can regulate ferroptosis-related pathways, such as iron metabolism, lipid metabolism, the cystine/glutamate antiporter system Xc- (System Xc-)/glutathione (GSH)/glutathione peroxidase 4 (GPX4), ferroptosis suppressor protein 1 (FSP1)/coenzyme Q10 (CoQ10)/nicotinamide adenine dinucleotide phosphate [NAD(P)H], tumor protein 53 (p53), nuclear factor erythroid-2-related factor 2 (Nrf2), and non-coding RNA pathways to inhibit the growth and proliferation of CRC, thereby exerting anti-tumor effects. This review systematically summarized the mechanisms of ferroptosis related to CRC, therapeutic targets and prognosis-related markers associated with ferroptosis in CRC, and research progress on TCM targeting and regulating ferroptosis for CRC intervention, aiming to provide new perspectives and a theoretical basis for the prevention and treatment of CRC with TCM.
3.Regulation of Ferroptosis by Traditional Chinese Medicine for Colorectal Cancer Intervention: A Review
Xiangchen LIU ; Weihan ZHAO ; Feixue FENG ; Xiaodong YANG ; Zhilong ZHAO ; Dezhen YANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(12):276-286
Colorectal cancer (CRC) is a common malignant tumor of the digestive tract with high morbidity and mortality. Although existing treatments can prolong the survival of patients, problems such as low quality of life, obvious side effects, and unsatisfactory clinical efficacy still exist, which cannot fully satisfy the overall needs of patients. For this reason, it is crucial to explore the mechanism underlying the development of CRC and to identify new treatment strategies. In recent years, with the deepening of research, ferroptosis has been gradually proven to effectively inhibit the proliferation and metastasis of CRC cells, overcome tumor drug resistance, enhance anti-tumor efficacy, and prevent tumor progression and recurrence. Therefore, regulating ferroptosis is expected to become a new strategy for the treatment of CRC. Traditional Chinese medicine (TCM) has been widely used in CRC treatment due to its advantages of multiple components, multiple targets, low drug resistance, and few side effects, and has gradually become a current research hotspot. Extensive studies have shown that TCM active ingredients and compound formulae can regulate ferroptosis-related pathways, such as iron metabolism, lipid metabolism, the cystine/glutamate antiporter system Xc- (System Xc-)/glutathione (GSH)/glutathione peroxidase 4 (GPX4), ferroptosis suppressor protein 1 (FSP1)/coenzyme Q10 (CoQ10)/nicotinamide adenine dinucleotide phosphate [NAD(P)H], tumor protein 53 (p53), nuclear factor erythroid-2-related factor 2 (Nrf2), and non-coding RNA pathways to inhibit the growth and proliferation of CRC, thereby exerting anti-tumor effects. This review systematically summarized the mechanisms of ferroptosis related to CRC, therapeutic targets and prognosis-related markers associated with ferroptosis in CRC, and research progress on TCM targeting and regulating ferroptosis for CRC intervention, aiming to provide new perspectives and a theoretical basis for the prevention and treatment of CRC with TCM.
4.Ameliorative effect of scutellarin on acute alcohol brain injury in mice.
Tianmeng ZHANG ; Kun WANG ; Hui FAN ; Qiankun YANG ; Xiao ZHANG ; Feixue LIU ; Xin FENG ; Yi CHEN ; Daoyang TENG ; Panpan ZHAO ; Jingquan DONG
Journal of Zhejiang University. Science. B 2022;23(3):258-264
Drinking culture has high significance in both China and the world, whether in the entertainment sector or in social occasions; according to the World Health Organization's 2018 Global Alcohol and Health Report, about 3 million people died from excessive drinking in 2016, accounting for 5.3% of the total global deaths that year. Oxidative stress and inflammation are the most common pathological phenomena caused by alcohol abuse (Snyder et al., 2017). Scutellarin, a kind of flavonoid, is one of the main active ingredients extracted from breviscapine. It exerts anti-inflammatory, antioxidant, and vasodilation effects, and has been used to treat cardiovascular diseases and alcoholic liver injury. Although scutellarin can effectively alleviate multi-target organ injury induced by different forms of stimulation, its protective effect on alcoholic brain injury has not been well-defined. Therefore, the present study established an acute alcohol mice brain injury model to explore the effect of scutellarin on acute alcoholic brain injury. The study was carried out based on the targets of oxidative stress and inflammation, which is of great significance for the targeted therapy of clinical alcohol diseases.
Animals
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Apigenin/therapeutic use*
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Brain Injuries/drug therapy*
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Glucuronates/therapeutic use*
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Humans
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Mice
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Oxidative Stress
5.Pseudomonas aeruginosa-induced mitochondrial dysfunction inhibits proinflammatory cytokine secretion and enhances cytotoxicity in mouse macrophages in a reactive oxygen species (ROS)-dependent way.
Haitao YANG ; Yan WANG ; Hui FAN ; Feixue LIU ; Huimiao FENG ; Xueqing LI ; Mingyi CHU ; Enzhuang PAN ; Daoyang TENG ; Huizhen CHEN ; Jingquan DONG
Journal of Zhejiang University. Science. B 2023;24(11):1027-1036
随着铜绿假单胞菌(铜绿)的耐药性逐年增强,铜绿感染已经成为公共医疗卫生的重点关注问题。线粒体自噬及其介导的线粒体功能障碍在多种细菌感染中已被报道,但线粒体功能障碍在宿主调控铜绿感染中的作用尚不明确。因此,本研究建立铜绿刺激小鼠巨噬细胞感染模型和小鼠急性铜绿感染模型,探讨铜绿是否通过诱导线粒体自噬改变线粒体功能,进而影响宿主免疫炎症反应和细胞毒性,并通过监测生存率和肺组织病理学变化进一步确定线粒体自噬在小鼠铜绿体内感染模型中的作用。结果表明,铜绿引起小鼠腹腔巨噬细胞线粒体功能障碍,并通过线粒体自噬途径清除铜绿刺激引起的活性氧(ROS)累积,从而抑制铜绿引起的促炎性细胞因子分泌并增强细胞毒性。体内实验进一步确认线粒体自噬在铜绿体内感染中的作用。
Mice
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Animals
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Reactive Oxygen Species/metabolism*
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Pseudomonas aeruginosa
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Macrophages/metabolism*
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Mitochondria
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Cytokines/metabolism*