1.Quercetin Ameliorates Gouty Arthritis in Rats via ROS/NLRP3/IL-1β Signaling Pathway
Baowei FENG ; Yan WANG ; Chang LI ; Yujing ZHANG ; Dingxing FAN ; Xin LI
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):145-153
ObjectiveTo investigate the effect of quercetin on acute gouty arthritis (GA) in rats by inhibiting the reactive oxygen species (ROS)/NOD-like receptor protein 3 (NLRP3)/interleukin-1β (IL-1β) signaling pathway. MethodsSixty SPF-grade male SD rats were randomized into normal, model, colchicine (0.3 mg·kg-1), and low-, medium-, and high-dose (25, 50, 100 mg·kg-1, respectively) quercetin groups (n=10). The rats in the dosing groups were administrated with the corresponding drugs (10 mL·kg-1) by gavage once a day for one week. An equal volume of normal saline was given by gavage to rats in normal and model groups. One hour after drug administration on day 5, an acute GA model was established in other groups except the control group via intra-articular injection of monosodium urate (MSU) suspension into the right posterior ankle joint cavity. The joint swelling and gait were scored at the time points of 6, 12, 24, 48 h after modeling. Histopathological alterations in the ankle joint tissue from each group were assessed by hematoxylin-eosin (HE) staining. Malondialdehyde (MDA), xanthine oxidase (XOD), and total superoxide dismutase (T-SOD) assay kits were used to assess the levels of MDA, XOD, and T-SOD in the serum. The levels of tumor interleukin-6 (IL-6), necrosis factor-α (TNF-α), and IL-1β in the rat serum, as well as ROS in the ankle joint tissue, were measured by enzyme-linked immunosorbent assay (ELISA). Western blot was performed to determine the protein levels of NLRP3, thioredoxin-interacting protein (TXNIP), apoptosis-associated speck-like protein containing a CARD domain (ASC), precursor cysteinyl aspartate-specific proteinase-1 (pro-Caspase-1), cleaved Caspase-1 (Caspase-1 p20), and IL-1β in the ankle joint tissue. Real-time PCR was employed to assess the mRNA levels of TXNIP, NLRP3, ASC, IL-1β, and TNF-α in the ankle joint tissue. ResultsCompared with the normal group, the model group exhibited decreased spontaneous activity, mental fatigue, increased ankle joint swelling and gait scores (P<0.01), aggravated synovial tissue edema and inflammatory cell infiltration (P<0.01), elevated levels of XOD, MDA, TNF-α, IL-1β, and IL-6 in the serum and ROS in the joint tissue (P<0.01), a declined level of T-SOD (P<0.01), up-regulated protein levels of NLRP3, TXNIP, ASC, pro-Caspase-1, Caspase-1 p20, and IL-1β in the ankle joint tissue (P<0.01), and up-regulated mRNA levels of NLRP3, TXNIP, ASC, IL-1β, and TNF-α in the ankle joint tissue (P<0.01). Compared with the model group, the medium- and high-dose quercetin groups showed improved general conditions, decreased gait scores (P<0.05, P<0.01), reduced joint swelling (P<0.01), alleviated synovial tissue edema and inflammatory cell infiltration (P<0.05, P<0.01), lowered levels of XOD, MDA, TNF-α, IL-1β, and IL-6 in the serum and ROS in the joint tissue (P<0.01), increased levels of T-SOD (P<0.01), down-regulated protein levels of TXNIP, NLRP3, ASC, pro-Caspase-1, Caspase-1 p20, and IL-1β in the ankle joint tissue (P<0.05, P<0.01), and down-regulated mRNA levels of TXNIP, NLRP3, ASC, IL-1β, and TNF-α in the ankle joint tissue (P<0.01). Low-dose quercetin also ameliorated some of the above parameters (P<0.05, P<0.01). ConclusionQuercetin exerts anti-GA effects by blocking the ROS/NLRP3/IL-1β signaling pathway, downregulating NLRP3 inflammasome activation, and inhibiting the production of pro-inflammatory cytokines including TNF-α, IL-1β, and IL-6.
2.Application and Advance of Image Compression Algorithms in Medical Imaging
Jiawen SHANG ; Peng HUANG ; Zhixing CHANG ; Yuhan FAN ; Zhihui HU ; Ke ZHANG ; Jianrong DAI ; Hui YAN
Medical Journal of Peking Union Medical College Hospital 2025;16(5):1281-1290
Medical imaging technology plays a crucial role in clinical diagnosis and treatment. Image compression technology provides robust technical support for the storage and transmission of massive medical imaging data, serving as an effective safeguard for hospital data backup and telemedicine. The technology holds broad application prospects in the medical field, enabling the processing of various imaging modalities, multidimensional imaging, and medical video imaging. This study elaborates on general image and video compression algorithms, the application of compression algorithms in the medical field, and the performance metrics of medical image compression, thereby providing critical technical support for enhancing clinical diagnostic efficiency and data management security.
3.Discussion on the commonalities of scalp acupuncture schools and the feasibility of a unified scalp acupuncture protocol.
Xiaomeng HU ; Chang SUN ; Yan LI ; Xitong MO ; Peng YAN ; Sixuan CHEN ; Gangqi FAN
Chinese Acupuncture & Moxibustion 2025;45(1):110-122
The data of 44 scalp acupuncture schools are collected to analyze their commonalities in theoretical foundations, needling sites, techniques, and indications. The integration of these characteristics into an optimized, unified scalp acupuncture protocol has become an inevitable trend. The paper discusses the potential for a unified scalp acupuncture protocol from aspects such as theoretical unification, the relationships between point areas, lines, and sites, and needle numbers. It also explores the primary issues and solutions involved in unifying scalp acupuncture protocols, providing a reference for standardization and unification in scalp acupuncture protocol.
Scalp
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Humans
;
Acupuncture Therapy/methods*
;
Acupuncture Points
4.Reflections and suggestions on the researches of acupuncture-moxibustion for idiopathic facial palsy.
Sixuan CHEN ; Yan LI ; Xitong MO ; Peng YAN ; Xiaomeng HU ; Chang SUN ; Gangqi FAN
Chinese Acupuncture & Moxibustion 2025;45(3):379-384
This article analyzes the current status of the researches on acupuncture-moxibustion for idiopathic facial palsy (Bell's palsy). Acupuncture-moxibustion is widely applied in treatment of Bell's palsy and the relevant researches are enriched. But the hierarchical discussion on the effectiveness is reported inadequately. Consequently, the necessity and advantages of acupuncture-moxibustion are hardly prominent. Besides, the safety of acupuncture-moxibustion in treatment is not fully explored. The common shortcomings are presented in professional study and statistical designs, and the quality of the evidences is not high. The recommendation strength of acupuncture-moxibustion is weak in international guidelines. The crucial questions are not deeply discussed, and there are lack of the recognized optimal protocol in clinical practical guidelines. It is suggested that the researches should improve the evaluation of the disease itself that may affect the prognosis of Bell's palsy, such as location, conditions and duration of illness, basic diseases and syndrome/pattern differentiation. The effect of acupuncture-moxibustion should be verified hierarchically, the questions on safety should be emphasized, the quality of study should be improved, the staging of treatment should be specified and the effect of acupuncture-moxibustion should be evaluated in multi-dimensions, and the elements of acupuncture-moxibustion should be optimized systematically in the aspects of timing, acupoint selection, needle devices, manipulation, intervention measures and regimen composition. So as to promote the research of acupuncture-moxibustion for Bell's palsy to a new process.
Humans
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Acupuncture Therapy
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Moxibustion
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Bell Palsy/therapy*
5.FAN Gangqi's experience in "four-dimensional" diagnosis and treatment of migraine with acupuncture and moxibusition.
Sixuan CHEN ; Chang SUN ; Xiaomeng HU ; Xitong MO ; Yan LI ; Peng YAN ; Yuxin ZHANG ; Gangqi FAN
Chinese Acupuncture & Moxibustion 2025;45(9):1299-1304
The paper introduces Professor FAN Gangqi's clinical experience in treatment of migraine. Regarding the syndrome/pattern differentiation of TCM, a four-approach framework is established, identifying the nature of illness, analyzing the syndrome/pattern and pathogenesis, determining the stage of illness, and identifying body constitution. In treatment, the principle of treatment is determined in line with syndrome/pattern differentiation, so as to ensure the therapeutic effect by means of "four dimensions". The acupuncture regimens are formulated in terms of the illness stages, "strong needling stimulation in acute stage for analgesia, and needle retaining in chronic stage for long-term effect". "Focusing on neuovascular pathway" is the effective approach to treatment of migraine with acupuncture and moxiubstion. The clinical holistic model by combining acupuncture with medication is advocated because that "the single acupuncture is weak in therapeutic effect, but with medication combined, the effect is enhanced". The different acupuncture techniques are provided comprehensively in treatment of migraine such as horizontal and row-like needling, collateral needling at Taiyang (EX-HN5), acupuncture at Sankong (Yuyao [EX-HN4], Sibai [ST2] and Jiachengjiang [Extra]), acupoint injection at Tianyou (TE16) and Renying (ST9), and acupoint embedding therapy at Fengchi (GB20).
Humans
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Migraine Disorders/diagnosis*
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Acupuncture Therapy
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Moxibustion
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Acupuncture Points
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Female
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Male
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Adult
6.Life-Course Trajectories of Body Mass Index, Insulin Resistance, and Incident Diabetes in Chinese Adults.
Zhi Yuan NING ; Jing Lan ZHANG ; Bing Bing FAN ; Yan Lin QU ; Chang SU ; Tao ZHANG
Biomedical and Environmental Sciences 2025;38(6):706-715
OBJECTIVE:
This study aimed to explore the interplay between the life-course body mass index (BMI) trajectories and insulin resistance (IR) on incident diabetes.
METHODS:
This longitudinal cohort included 2,336 participants who had BMI repeatedly measured 3-8 times between 1989 and 2009, as well as glucose and insulin measured in 2009. BMI trajectories were identified using a latent class growth mixed model. The interplay between BMI trajectories and IR on diabetes was explored using the four-way effect decomposition method. Logistic regression and mediation models were used to estimate the interaction and mediation effects, respectively.
RESULTS:
Three distinct BMI trajectory groups were identified: low-stable ( n = 1,625), medium-increasing ( n = 613), and high-increasing ( n = 98). Both interaction and mediation effects of BMI trajectories and IR on incident diabetes were significant ( P < 0.05). The proportion of incident diabetes was higher in the IR-obesity than in the insulin-sensitivity (IS) obesity group (18.9% vs. 5.8%, P < 0.001). After adjusting for covariates, the odds ratios (95% confidence intervals) of the IR, IS-obesity, and IR-obesity groups vs. the normal group were 3.22 (2.05, 5.16), 2.05 (1.00, 3.97), and 7.98 (5.19, 12.62), respectively. IR mediated 10.7% of the total effect of BMI trajectories on incident diabetes ( P < 0.001).
CONCLUSION
We found strong interactions and weak mediation effects of IR on the relationship between life-course BMI trajectories and incident diabetes. IS-obesity is associated with a lower risk of incident diabetes than IR-obesity.
Humans
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Insulin Resistance
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Body Mass Index
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Male
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Female
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Middle Aged
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China/epidemiology*
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Adult
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Longitudinal Studies
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Incidence
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Diabetes Mellitus/epidemiology*
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Aged
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Obesity/epidemiology*
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Diabetes Mellitus, Type 2/epidemiology*
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East Asian People
7.Comprehensive Analysis of Proteins and Their Phosphorylation in Milk-derived Exosomes From Different Species
Chang-Mei LIU ; Yi-Fan HU ; Wen-Yan CHEN ; Dan LIU ; Jie SHI ; Gang-Long YANG
Progress in Biochemistry and Biophysics 2024;51(7):1697-1710
ObjectiveExosomes are microvesicles which could be secreted by all cell types with diameters between 30 and 150 nm. It was widely distributed in body fluids including blood, urine, and breast milk. Exosomes are considered as potential biomarkers and drug carriers by reason of containing nucleic acids, lipids, proteins and other bioactive molecules. Milk-derived exosomes have been widely used as drug delivery carriers to treat targeted diseases with a lower cost, higher biocompatibility and lower immunogenicity. Until now, there is no research about the milk-derived exosomes phosphorylation to reveal the difference of protein phosphorylation in different species of milk. To investigate the pathways and proteins with specific functions, phosphorylated proteomic analysis of milk-derived exosomes from different species is performed, and provide new ideas for exploring diversified treatments of disease. MethodsWhey and exosomes derived from bovine, porcine and caprine milk were performed for proteomics and phosphoproteomics analysis. The relationship between milk exosome proteins from different species and signaling pathways were analyzed using bioinformatics tools. ResultsA total of 4 191 global proteins, 1 640 phosphoproteins and 4 064 phosphosites were identified from 3 species of milk-derived exosomes, and the exosome proteins and phosphoproteins from different species were significantly higher than those of whey. Meanwhile, some special pathways were enriched like Fcγ-mediated phagocytosis from bovine exosomes, pathways related with neural and immune system from caprine exosomes, positive and negative regulation of multiple activities from porcine exosomes. ConclusionIn this study, the proteomic and phosphoproteomic analyses of exosomes and whey from bovine, porcine and caprine milk were carried out to reveal the difference of composition and related signaling pathways of milk exosome from different species. These results provided powerful support for the application of exosomes from different milk sources in the field of disease treatment.
8.Research Progress of Gas Raman Spectroscopy Detection Technology
Qi-Fan ZHOU ; Yu LU ; Ao LI ; Chang LIU ; Jia-He ZHANG ; Xi YANG ; Yan HUANG ; Xiang-Wei ZHAO
Chinese Journal of Analytical Chemistry 2024;52(7):925-936
Highly sensitive multiple detection and accurate identification of gases are of great importance in the fields of public safety,environmental protection,health diagnosis and industrial production.However,the traditional means of gas detection have many shortcomings such as low sensitivity,long time-consuming,bulky equipment,cumbersome processes and expensive costs.In recent years,Raman spectroscopy has become a hotspot in the field of gas detection because of its fast,sensitive and non-destructive characteristics,and has been more and more closely combined with artificial intelligence.This paper reviews the progress of Raman spectroscopy in gas detection in recent years,including conventional Raman spectroscopy and enhanced Raman spectroscopy,and also introduces the integration of artificial intelligence algorithms in gas Raman detection technology,and discusses the future development of gas Raman detection.
9.Analysis of Clinical Efficacy and Central Response Mechanism of Transcutaneous Auricular Vagus Nerve Stimulation for the Treatment of Overweight/Obesity Patients Based on Regional Homogeneity
Wen-Fei FAN ; Cheng-Feng ZHANG ; Shun-Ying ZHAO ; Li-Hong YIN ; Si-Ning YAN ; Meng-Ying LIAO ; Jun CHEN ; Yu CHEN ; Chang-Cai XIE
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(11):2954-2960
Objective To investigate the therapeutic effect of transcutaneous auricular vagus nerve stimulation(taVNS)on overweight/obesity patients,and to explore its central mechanism.Methods Twenty-six overweight/obesity patients were randomly divided into two groups,12 cases in the taVNS test group(shortened as the taVNS group)and 14 cases in the lifestyle intervention control group(shortened as the control group).The patients in the control group were treated with online lifestyle intervention of calorie-restricted diet(CRD),and the patients in the taVNS group were treated with taVNS on the basis of the intervention for the control group.The taVNS was performed on unilateral acupoints of spleen and endocrine,twice(in the morning and at evening)per day,for five days a week.The treatment for the two groups covered four weeks.The obesity indicators such as body weight,body mass index(BMI)and waist circumference of the patients in the two groups were observed before and after treatment.Moreover,the resting-state cerebral functional magnetic resonance imaging(fMRI)data of the patients were collected after treatment,and then the regulatory effect of taVNS on the regional homogeneity(ReHo)of local cerebral area of the patients was observed.Results(1)During the trial,one case in each group dropped off,and a total of 24 patients(including 13 cases in the control group and 11 cases in the taVNS group)were finally included in the statistical analysis of the observation indicators.(2)After treatment,the body weight,BMI and waist circumference of patients in the taVNS group were decreased compared with those before treatment(P<0.05),while the obesity indicators in the control group only showed a downward trend compared with those before treatment,the differences being not statistically significant(P>0.05).The improvement of the obesity indicators of body weight,BMI,and waist circumference in the taVNS group was significantly superior to that in the control group,and there were statistically significant differences in the post-treatment indicators and in the pre-and post-treatment difference values of the indicators between the two groups(P<0.05 or P<0.01).(3)After treatment,the taVNS group had greater ReHo values in the left prefrontal lobe and medial frontal gyrus than the control group,and the control group had greater ReHo value in the right parietal lobe than the taVNS group,which indicated that compared with the control group,the ReHo of the left prefrontal lobe and medial frontal gyrus in the taVNS group was increased and the ReHo of the right parietal lobe was decreased(Pvoxel<0.001,Pcluster<0.05,corrected by FWE level).Conclusion As a non-invasive treatment method,taVNS exerts certain efficacy for the treatment of overweight/obesity patients.The central response mechanism for treatment of obesity is probably related with the modulation of taVNS on the functional areas of left prefrontal lobe,medial frontal gyrus,and right parietal lobe of the patients.
10.Exploring the Components and Mechanism of Shenbai Jiedu Decoction in Treating CRA Carcinogenesis Based on LC-MS and Network Pharmacology
Li LIU ; Qiuying YAN ; Xiaoxuan FAN ; Minmin FAN ; Liu LI ; Huiping TAO-LI ; Shuchen CHANG ; Haibo CHENG ; Dongdong SUN
Journal of Nanjing University of Traditional Chinese Medicine 2024;40(8):771-784
OBJECTIVE To identify the chemical components of Shenbai Jiedu Decoction(SBJDD),a traditional Chinese medi-cine(TCM)prescription clinically used for the treatment of colorectal adenoma(CRA),and explore the potential mechanism of SBJDD preventing and treating CRA carcinogenesis.METHODS An ultra-high performance liquid chromatography-time of flight-mass spectrometry(UPLC-Q-TOF-MS)method was established to detect the chemical components in the decoction of SBJDD and the plas-ma samples of rats after administration with SBJDD.Based on the network pharmacological method,SBJDD was screened for the poten-tial active ingredients at different stages of CRA carcinogenesis,and the mechanism of the anti-cancer effect of SBJDD was explored.In vitro experiments were also carried out to verify the mechanism of anti-colorectal cancer(CRC)action of SBJDD.RE-SULTS The detection data of UPLC-Q-TOF-MS showed that 152 components were found from SBJDD water extraction.41 chemical compounds were identified in plasma samples from rats administrated with SBJDD.Network pharmacology analysis indicated that during the CREI stage,the potential active ingredients in SBJDD,including epiberberine,and kushenol H,might affect target proteins such as PIK3CA,MAPK3 and PIK3CB.This,in turn,can influence signaling pathways like PI3K-AKT and Ras signaling pathways,and regulate biological processes like protein phosphorylation,and signal transduction.During the CRA stage,the potential active ingredi-ents from SBJDD,such as 3,7-dihydroxycoumarin,palmatine,and kushenol A,might affect target proteins such as AKT and EGFR.This can regulate the negative regulation of apoptotic process,and positive regulation of cell proliferation,and modify HIF-1,and Rap1 signaling pathways.During the progression of CRA carcinogenesis,potential active ingredients such as 3,7-dihydroxycouma-rin may interact with TP53,and impact the PI3K-AKT,and Thyroid hormone signaling pathways to regulate biological processes,in-cluding positive regulation of transcription from RNA polymerase Ⅱ promoter,and negative regulation of apoptotic process.In the CRC stage,core ingredients like p-coumaric acid may bind with proteins such as PRKCB.This binding may impact the signaling pathways that negatively affect EGFR tyrosine kinase inhibitor resistance,and PI3K-AKT signaling pathways.Additionally,it may regulate bio-logical processes,including negative regulation of apoptotic process,signal transduction,and protein phosphorylation.In vitro experi-ment results indicated that SBJDD inhibited the proliferation of HT29 cells and suppressed the expression of EGFR and PKC proteins.CONCLUSION The UPLC-Q-TOF-MS method is established to effectively separate the chemical constituents in SBJDD,which are mainly composed of alkaloids,organic acids and flavonoids components.Components from SBJDD dock with different targets during the carcinogenesis process of CRA and regulate cancer-related signaling pathways to exert therapeutic effects.

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