1.Medication rules of Astragali Radix in ancient Chinese medical books based on "disease-medicine-dose" pattern.
Jia-Lei CAO ; Lü-Yuan LIANG ; Yi-Hang LIU ; Zi-Ming XU ; Xuan WANG ; Wen-Xi WEI ; He-Jia WAN ; Xing-Hang LYU ; Wei-Xiao LI ; Yu-Xin ZHANG ; Bing-Qi WEI ; Xian-Qing REN
China Journal of Chinese Materia Medica 2025;50(3):798-811
This study employed the "disease-medicine-dose" pattern to mine the medication rules of traditional Chinese medicine(TCM) prescriptions containing Astragali Radix in ancient Chinese medical books, aiming to provide a scientific basis for the clinical application of Astragali Radix and the development of new medicines. The TCM prescriptions containing Astragali Radix were retrieved from databases such as Chinese Medical Dictionary and imported into Excel 2020 to construct the prescription library. Statical analysis were performed for the prescriptions regarding the indications, syndromes, medicine use frequency, herb effects, nature and taste, meridian tropism, dosage forms, and dose. SPSS statistics 26.0 and IBM SPSS Modeler 18.0 were used for association rules analysis and cluster analysis. A total of 2 297 prescriptions containing Astragali Radix were collected, involving 233 indications, among which sore and ulcer, consumptive disease, sweating disorder, and apoplexy had high frequency(>25), and their syndromes were mainly Qi and blood deficiency, Qi and blood deficiency, Yin and Yang deficiency, and Qi deficiency and collateral obstruction, respectively. In the prescriptions, 98 medicines were used with the frequency >25 and they mainly included Qi-tonifying medicines and blood-tonifying medicines. Glycyrrhizae Radix et Rhizoma, Angelicae Sinensis Radix, Ginseng Radix et Rhizoma, Atractylodis Macrocephalae Rhizoma, and Citri Reticulatae Pericarpium were frequently used. The medicines with high frequency mainly have warm or cold nature, and sweet, pungent, or bitter taste, with tropism to spleen, lung, heart, liver, and kidney meridians. In the treatment of sore and ulcer, Astragali Radix was mainly used with the dose of 3.73 g and combined with Glycyrrhizae Radix et Rhizoma to promote granulation and heal up sores. In the treatment of consumptive disease, Astragali Radix was mainly used with the dose of 37.30 g and combined with Ginseng Radix et Rhizoma to tonify deficiency and replenish Qi. In the treatment of sweating disorder, Astragali Radix was mainly used with the dose of 3.73 g and combined with Glycyrrhizae Radix et Rhizoma to consolidate exterior and stop sweating. In the treatment of apoplexy, Astragali Radix was mainly used with the dose of 7.46 g and combined with Glycyrrhizae Radix et Rhizoma to dispell wind and stop convulsions. Astragali Radix can be used in the treatment of multiple system diseases, with the effects of tonifying Qi and ascending Yang, consolidating exterior and stopping sweating, and expressing toxin and promoting granulation. According to the manifestations of different diseases, when combined with other medicines, Astragali Radix was endowed with the effects of promoting granulation and healing up sores, tonifying deficiency and Qi, consolidating exterior and stopping sweating, and dispelling wind and replenishing Qi. The findings provide a theoretical reference and a scientific basis for the clinical application of Astragali Radix and the development of new medicines.
Drugs, Chinese Herbal/history*
;
Humans
;
Medicine, Chinese Traditional/history*
;
History, Ancient
;
Astragalus Plant/chemistry*
;
China
;
Astragalus propinquus
2.Epidemiological characteristics of human metapneumovirus and risk factors for severe pneumonia in hospitalized children.
Yi-Xuan WANG ; Su-Kun LU ; Kun-Ling HUANG ; Li-Jie CAO ; Ya-Juan CHU ; Bo NIU
Chinese Journal of Contemporary Pediatrics 2025;27(10):1205-1211
OBJECTIVES:
To investigate the epidemiological characteristics of human metapneumovirus (hMPV) and the risk factors for severe pneumonia in hospitalized children.
METHODS:
The epidemiological characteristics of hMPV in hospitalized children at Hebei Children's Hospital from January 2019 to December 2023 were retrospectively analyzed. The clinical data of hospitalized children with hMPV infection from April to December 2023 were included, and independent risk factors for severe pneumonia were identified through logistic regression.
RESULTS:
A total of 44 092 children were tested, with an hMPV positive rate of 7.30% (3 220/44 092). Children aged 3-6 years constituted the largest proportion (40.93%, 1 318/3 220) among hMPV-positive cases. The detection rate varied significantly by year (P<0.001), peaking in 2022 (12.35%, 978/7 919). The peak season of the epidemic was winter and spring from 2019 to 2021, but shifted to spring and summer from 2022 to 2023. The proportion of co-infection was 38.70% (1 246/3 220), primarily with rhinovirus (600/1 246, 48.15%), Mycoplasma pneumoniae (217/1 246, 17.42%), and respiratory syncytial virus (182/1 246, 14.61%). The main manifestations of hMPV pneumonia were cough, expectoration, and fever. Children with severe pneumonia were significantly younger (P<0.05). Wheezing, underlying diseases, co-infection, and younger age were identified as independent risk factors for severe pneumonia (P<0.05).
CONCLUSIONS
There are significant annual and seasonal differences in the epidemiological characteristics of hMPV in hospitalized children. Young age, underlying diseases, wheezing, and co-infection are independent risk factors for severe pneumonia.
Humans
;
Risk Factors
;
Metapneumovirus
;
Child, Preschool
;
Child
;
Male
;
Female
;
Paramyxoviridae Infections/complications*
;
Pneumonia/epidemiology*
;
Retrospective Studies
;
Child, Hospitalized
;
Infant
;
Logistic Models
;
Seasons
;
Hospitalization
3.A Retrospective Study of Pregnancy and Fetal Outcomes in Mothers with Hepatitis C Viremia.
Wen DENG ; Zi Yu ZHANG ; Xin Xin LI ; Ya Qin ZHANG ; Wei Hua CAO ; Shi Yu WANG ; Xin WEI ; Zi Xuan GAO ; Shuo Jie WANG ; Lin Mei YAO ; Lu ZHANG ; Hong Xiao HAO ; Xiao Xue CHEN ; Yuan Jiao GAO ; Wei YI ; Yao XIE ; Ming Hui LI
Biomedical and Environmental Sciences 2025;38(7):829-839
OBJECTIVE:
To investigate chronic hepatitis C virus (HCV) infection's effect on gestational liver function, pregnancy and delivery complications, and neonatal development.
METHODS:
A total of 157 HCV antibody-positive (anti-HCV[+]) and HCV RNA(+) patients (Group C) and 121 anti-HCV(+) and HCV RNA(-) patients (Group B) were included as study participants, while 142 anti-HCV(-) and HCV RNA(-) patients (Group A) were the control group. Data on biochemical indices during pregnancy, pregnancy complications, delivery-related information, and neonatal complications were also collected.
RESULTS:
Elevated alanine aminotransferase (ALT) rates in Group C during early, middle, and late pregnancy were 59.87%, 43.95%, and 42.04%, respectively-significantly higher than Groups B (26.45%, 15.70%, 10.74%) and A (23.94%, 19.01%, 6.34%) ( P < 0.05). Median ALT levels in Group C were significantly higher than in Groups A and B at all pregnancy stages ( P < 0.05). No significant differences were found in neonatal malformation rates across groups ( P > 0.05). However, neonatal jaundice incidence was significantly greater in Group C (75.16%) compared to Groups A (42.25%) and B (57.02%) ( χ 2 = 33.552, P < 0.001). HCV RNA positivity during pregnancy was an independent risk factor for neonatal jaundice ( OR = 2.111, 95% CI 1.242-3.588, P = 0.006).
CONCLUSIONS
Chronic HCV infection can affect the liver function of pregnant women, but does not increase the pregnancy or delivery complication risks. HCV RNA(+) is an independent risk factor for neonatal jaundice.
Humans
;
Female
;
Pregnancy
;
Adult
;
Pregnancy Complications, Infectious/epidemiology*
;
Retrospective Studies
;
Pregnancy Outcome
;
Infant, Newborn
;
Viremia/virology*
;
Hepatitis C
;
Hepacivirus/physiology*
;
Hepatitis C, Chronic/virology*
;
Young Adult
;
Alanine Transaminase/blood*
4.Association of Body Mass Index with All-Cause Mortality and Cause-Specific Mortality in Rural China: 10-Year Follow-up of a Population-Based Multicenter Prospective Study.
Juan Juan HUANG ; Yuan Zhi DI ; Ling Yu SHEN ; Jian Guo LIANG ; Jiang DU ; Xue Fang CAO ; Wei Tao DUAN ; Ai Wei HE ; Jun LIANG ; Li Mei ZHU ; Zi Sen LIU ; Fang LIU ; Shu Min YANG ; Zu Hui XU ; Cheng CHEN ; Bin ZHANG ; Jiao Xia YAN ; Yan Chun LIANG ; Rong LIU ; Tao ZHU ; Hong Zhi LI ; Fei SHEN ; Bo Xuan FENG ; Yi Jun HE ; Zi Han LI ; Ya Qi ZHAO ; Tong Lei GUO ; Li Qiong BAI ; Wei LU ; Qi JIN ; Lei GAO ; He Nan XIN
Biomedical and Environmental Sciences 2025;38(10):1179-1193
OBJECTIVE:
This study aimed to explore the association between body mass index (BMI) and mortality based on the 10-year population-based multicenter prospective study.
METHODS:
A general population-based multicenter prospective study was conducted at four sites in rural China between 2013 and 2023. Multivariate Cox proportional hazards models and restricted cubic spline analyses were used to assess the association between BMI and mortality. Stratified analyses were performed based on the individual characteristics of the participants.
RESULTS:
Overall, 19,107 participants with a sum of 163,095 person-years were included and 1,910 participants died. The underweight (< 18.5 kg/m 2) presented an increase in all-cause mortality (adjusted hazards ratio [ aHR] = 2.00, 95% confidence interval [ CI]: 1.66-2.41), while overweight (≥ 24.0 to < 28.0 kg/m 2) and obesity (≥ 28.0 kg/m 2) presented a decrease with an aHR of 0.61 (95% CI: 0.52-0.73) and 0.51 (95% CI: 0.37-0.70), respectively. Overweight ( aHR = 0.76, 95% CI: 0.67-0.86) and mild obesity ( aHR = 0.72, 95% CI: 0.59-0.87) had a positive impact on mortality in people older than 60 years. All-cause mortality decreased rapidly until reaching a BMI of 25.7 kg/m 2 ( aHR = 0.95, 95% CI: 0.92-0.98) and increased slightly above that value, indicating a U-shaped association. The beneficial impact of being overweight on mortality was robust in most subgroups and sensitivity analyses.
CONCLUSION
This study provides additional evidence that overweight and mild obesity may be inversely related to the risk of death in individuals older than 60 years. Therefore, it is essential to consider age differences when formulating health and weight management strategies.
Humans
;
Body Mass Index
;
China/epidemiology*
;
Male
;
Female
;
Middle Aged
;
Prospective Studies
;
Rural Population/statistics & numerical data*
;
Aged
;
Follow-Up Studies
;
Adult
;
Mortality
;
Cause of Death
;
Obesity/mortality*
;
Overweight/mortality*
5.Rapid Screening of 34 Emerging Contaminants in Surface Water by UHPLC-Q-TOF-MS
Chen-Shan LÜ ; Yi-Xuan CAO ; Xiao-Xi MU ; Hai-Yan CUI ; Tao WANG ; Zhi-Wen WEI ; Ke-Ming YUN ; Meng HU
Journal of Forensic Medicine 2024;40(1):30-36
Objective To establish a rapid screening method for 34 emerging contaminants in surface water by ultra-high performance liquid chromatography-quadrupole-time of flight mass spectrometry(UHPLC-Q-TOF-MS).Methods The pretreatment conditions of solid phase extraction(SPE)were op-timized by orthogonal experimental design and the surface water samples were concentrated and ex-tracted by Oasis? HLB and Oasis? MCX SPE columns in series.The extracts were separated by Kine-tex? EVO C18 column,with gradient elution of 0.1%formic acid aqueous solution and 0.1%formic acid methanol solution.Q-TOF-MS'fullscan'and'targeted MS/MS'modes were used to detect 34 emerging contaminants and to establish a database with 34 emerging contaminants precursor ion,prod-uct ion and retention times.Results The 34 emerging contaminants exhibited good linearity in the con-centration range respectively and the correlation coefficients(r)were higher than 0.97.The limit of de-tection was 0.2-10 ng/L and the recoveries were 81.2%-119.2%.The intra-day precision was 0.78%-18.70%.The method was applied to analyze multiple surface water samples and 6 emerging contaminants were detected,with a concentration range of 1.93-157.71 ng/L.Conclusion The method is simple and rapid for screening various emerging contaminants at the trace level in surface water.
6.GPR40 novel agonist SZZ15-11 regulates glucolipid metabolic disorders in spontaneous type 2 diabetic KKAy mice
Lei LEI ; Jia-yu ZHAI ; Tian ZHOU ; Quan LIU ; Shuai-nan LIU ; Cai-na LI ; Hui CAO ; Cun-yu FENG ; Min WU ; Lei-lei CHEN ; Li-ran LEI ; Xuan PAN ; Zhan-zhu LIU ; Yi HUAN ; Zhu-fang SHEN
Acta Pharmaceutica Sinica 2024;59(10):2782-2790
G protein-coupled receptor (GPR) 40, as one of GPRs family, plays a potential role in regulating glucose and lipid metabolism. To study the effect of GPR40 novel agonist SZZ15-11 on hyperglycemia and hyperlipidemia and its potential mechanism, spontaneous type 2 diabetic KKAy mice, human hepatocellular carcinoma HepG2 cells and murine mature adipocyte 3T3-L1 cells were used. KKAy mice were divided into four groups, vehicle group, TAK group, SZZ (50 mg·kg-1) group and SZZ (100 mg·kg-1) group, with oral gavage of 0.5% sodium carboxymethylcellulose (CMC), 50 mg·kg-1 TAK875, 50 and 100 mg·kg-1 SZZ15-11 respectively for 45 days. Fasting blood glucose, blood triglyceride (TG) and total cholesterol (TC), non-fasting blood glucose were tested. Oral glucose tolerance test and insulin tolerance test were executed. Blood insulin and glucagon were measured
7.Efficacy and safety of low-dose tirofiban infusion used in stent-assisted coiling for ruptured intracranial aneurysms
Yi MO ; Jie CAO ; Xucheng ZHU ; Ronghua CHEN ; Huaming SHAO ; Jinggang XUAN ; Ya PENG
Chinese Journal of Cerebrovascular Diseases 2024;21(9):587-594
Objective To explore the efficacy and safety of low-dose tirofiban in stent-assisted coil embolization(SAC)for ruptured intracranial aneurysms.Methods From April 2011 to September 2020,335 patients of ruptured intracranial aneurysms with subarachnoid hemorrhage(SAH)admitted in the First People's Hospital of Changzhou were retrospectively analyzed.All cases underwent stent-assisted coil embolization within 24-48 h and antiplatelet medications.The patients were divided into dual antibody group(89 cases)and tirofiban group(246 cases).Baseline and clinical data of all patients were collected for comparison between groups,including age,sex,hypertension,diabetes mellitus,Hunt-Hess grade at admission,modified Fisher scale score at admission,aneurysm diameter(>5 mm,≤5 mm),aneurysm location(anterior circulation,posterior circulation),postoperative acute hydrocephalus or intraventricular hemorrhage,postoperative complete embolization rate of ruptured aneurysm.All patients with ruptured intracranial aneurysm with SAH were confirmed by emergency cerebral CT scan after admission.The Raymond grading criteria were used to evaluate the embolization effect after operation:grade Ⅰ refers to no development(complete embolization),grade Ⅱ refers to only aneurysm neck development(incomplete embolization),and grade Ⅲ refers to aneurysm body development,in which Raymond grading Ⅰ orⅡ indicates effective embolization.Tirofiban group:4.2 μg/kg tirofiban was intravenously injected after the coil was placed in the aneurysm lumen and the stent was released,followed by maintenance dose 0.07 μg/(kg·min)for 6-8 h,and aspirin 100 mg and clopidogrel 75 mg were given as sequential dual antiplatelet therapy 2 hours before the tirofiban infusion was stopped.Dual antiplatelet group:a loading dose of aspirin 300 mg and clopidogrel 300 mg was given at least 2 hours before stent implantation,and then transferred to aspirin 100 mg and clopidogrel 75 mg given on the second day after operation.All patients received aspirin(100mg/d)for 6 months and clopidogrel(75 mg/d)for 3 months after operation.The efficacy indicators,safety indicators,adverse events and other complications of the two groups were collected and compared.The efficacy indicators were the incidence of thrombotic events during operation and within 72 hours after operation.The safety indicators were the incidence of intraoperative and early postoperative intracranial hemorrhage(within 48 hours after operation),the incidence of late postoperative intracranial hemorrhage(over 48 hours after operation),and the incidence of intracranial hemorrhage related to external ventricular drainage(symptomatic and asymptomatic).The adverse event was the occurrence of drug-related thrombocytopenia.Other complications were delayed ischemic events.The modified Rankin scale(mRS)score was used to evaluate the clinical prognosis of patients at 180 days after operation.mRS score ≤2 was defined as good prognosis,mRS score>2 was defined as poor prognosis,of which 6 was defined as death.Results(1)There were no significant differences in baseline and clinical data between the tirofiban group and the dual antibody group(all P>0.05).(2)There was no significant difference in the proportion of patients with good outcome(75.2%[185/246]vs.74.2%[66/89],P=0.845)and death(10.2%[25/246]vs.12.4%[11/89],P=0.566)at 180 days after operation between the tirofiban group and the dual antiplatelet group.(3)There was no significant difference in the incidence of intraoperative(0.8%[2/246]vs.4.5%[4/89],P=0.075)and postoperative thrombotic events(11.0%[27/246]vs.13.5%[12/89],P=0.527)between the tirofiban group and the dual antiplatelet group.(4)Results about safety comparison between this two antiplatelet regimens showed that the incidence of early postoperative intracranial hemorrhage were lower in the tirofiban group than that in the dual antiplatelet group(2.8%[7/246]vs.10.1%[9/89],P=0.014).There were no significant differences in the symptomatic external ventricular drainage related intracranial hemorrhage(0 vs.2/15,P=0.050),incidences of intraoperative intracranial hemorrhage(1.6%vs.3.4%,P=0.580),late postoperative intracranial hemorrhage(3.3%vs.4.5%,P=0.836),and drug-related thrombocytopenia(0.4%vs.1.1%,P=0.461)between the two groups.Conclusion Low-dose tirofiban infusion in SAC for ruptured aneurysms may prevent perioperative thromboembolic events without high risk of intracranial hemorrhage.
8.Disease acceptance in HIV/AIDS patients and related factors
Zi-Qi QIN ; Gui-Ying CAO ; Jian-Ping XIE ; Xiao WANG ; Yi-Xuan LI ; Qiao-Yue LU ; Hong-Hong WANG ; Xue-Ling XIAO
Chinese Journal of Infection Control 2024;23(8):1016-1022
Objective To understand the disease acceptance status and related factors in human immunodeficiency virus(HIV)-infected/acquired immunodeficiency syndrom(AIDS)patients,so as to guide the clinical development of intervention measures,and to provide empirical evidence for improving clinical outcomes.Methods Convenience sampling method was used to select 555 HIV-infected/AIDS patients who received treatment in the designated AIDS treatment clinic of a hospital.General data,disease acceptance,disease self-management efficacy and clinical out-comes(such as quality of life,CD4+T lymphocyte count and HIV viral load)of the studied subjects were collected.Results The average disease acceptance of HIV-infected/AIDS patients was(26.08±5.34)points.Multiple linear regression analysis showed that religious belief and self-management efficacy were related factors affecting the di-sease acceptance of patients(both P<0.05),which could explain the 30.4%variation in disease acceptance of HIV-infected/AIDS patients,and the disease acceptance of patients was closely related to their quality of life(P<0.001).Conclusion HIV-infected/AIDS patients have a moderate level of disease acceptance.Medical staff should fully consider patients'religious beliefs and self-management efficacy,so as to formulate targeted intervention mea-sures to improve patients'acceptance of disease,and further promote patients'quality of life.
9.Porphyromonas gingivalis outer membrane vesicles activate Toll-like receptor 2 to promote osteoclast differentiation by carrying lipopolysaccharide
Jiekang ZOU ; Yumeng CAO ; Yi TIAN ; Xuan LI ; Ruixin WU ; Beimin TIAN ; Haihua SUN ; Faming CHEN ; Xiaotao HE
Chinese Journal of Stomatology 2024;59(3):237-246
Objective:To investigate the effects of Porphyromonas gingivalis derived outer membrane vesicles (Pg OMV) on osteoclast differentiation of macrophages and its underlying mechanisms. Methods:The morphology and the size distribution of Pg OMV were analyzed by transmission electron microscopy and nanoparticle tracing analysis, respectively. The osteoclast precursors were treated with 1, 3 and 10 mg/L Pg OMV (1, 3 and 10 mg/L OMV treatment group) or phosphate buffer solution (PBS)(control group). The formation of osteoclasts was analyzed by tartrate-resistant acid phosphase (TRAP) staining and F-actin staining and real-time quantitative PCR (RT-qPCR) were used to detect the expression of Fos and matrix metallopeptidase 9 (MMP9). Polymyxin B (PMB) was used to block lipopolysaccharide (LPS) and then Pg OMV was used to treat osteoclast precursor (PMB-OMV treatment group), and OMV treatment group was used as control. TRAP and F-actin staining were used to observe the formation of osteoclasts and actin rings. The effect of Pg OMV on the expression of Toll-like receptor (TLR) 2 and TLR4 in preosteoclasts was detected by Western blotting. The osteoclast precursors were pretreated with 10, 50, 100 and 200 μmol/L C29, an inhibitor of TLR2, and then treated with Pg OMV(OMV+10, 50, 100 and 200 μmol/L C29 treatment group) and OMV treatment group without C29 pretreatment was control. TRAP and F-actin staining were used to observe the formation of osteoclasts and actin rings. The osteoclast precursor cells were treated with OMV (OMV treatment group) and OMV incubated with PMB (PMB-OMV treatment group) and the expression of TLR2 in osteoclast precursor was detected by Western blotting.Results:Pg OMV showed classical vesicular structures, and the average particle size of Pg OMV were 179.2 nm. A large number of actin rings were observed in the 3 and 10 mg/L OMV treatment groups. The percentages of TRAP-positive osteoclast area in 3 mg/L OMV treatment group [(22.6±2.1)%] and 10 mg/L OMV treatment group [(32.0±2.3)%] were significantly increased compared with control group [(4.9±0.5)%] ( P<0.001). Compared with the control group (1.000±0.029), the mRNA relative expression of Fos in 3 mg/L OMV treatment group (1.491±0.114) and 10 mg/L OMV treatment group (1.726±0.254) was significantly increased ( P=0.013, P=0.001). Compared with the control group (1.007±0.148), the mRNA relative expression of MMP9 in the group of 10 mg/L OMV (2.232±0.097) was significantly increased ( P<0.001). Actin ring formation was less in PMB-OMV treatment groups than in OMV treatment groups. The proportion of TRAP-positive osteoclasts area [(14.8±3.8)%] in PMB-OMV treatment group was significantly lower than OMV treatment group [(31.5±6.7) %] ( P=0.004). The relative expression of TLR2 in OMV treatment group (1.359±0.134) was significantly higher than that in the control group (1.000±0.000) ( t=4.62, P=0.044). Compared with the OMV treatment group [(29.4±1.7)%], 50, 100 and 200 μmol/L C29 significantly decreased the formation of osteoclasts [(24.0±1.7)%, (18.5±2.1)%, (9.1±1.3) %] ( P=0.026, P<0.001, P<0.001). TLR2 protein expression in PMB-OMV group (0.780±0.046) was significantly lower than that in OMV group (1.000±0.000)( t=8.32, P=0.001). Conclusions:Pg OMV can promote osteoclast differentiation by carrying LPS, TLR2 plays an important role in Pg OMV mediated osteoclast differentiation.
10.Regulation of Bifidobacterium-short chain fatty acid metabolism and improvement of intestinal toxicity of vinegar-processed Euphorbiae Pekinensis Radix.
Ling-Jun YE ; Xiao-Fen XU ; Sai-Ya CHEN ; Huan ZHANG ; Yi-Xuan GAN ; Tao MENG ; Rui DING ; Jing LI ; Gang CAO ; Kui-Long WANG
China Journal of Chinese Materia Medica 2024;49(23):6331-6341
To explore the mechanism by which vinegar-processed Euphorbiae Pekinensis Radix regulates gut microbiota and reduces intestinal toxicity, this study aimed to identify key microbial communities related to vinegar-induced detoxification and verify their functions. Using a derivatization method, the study measured the content of short-chain fatty acids(SCFAs) in feces before and after vinegar-processing of Euphorbiae Pekinensis Radix. Combined with the results of previous gut microbiota sequencing, correlation analysis was used to identify key microbial communities related to SCFAs content. Through single-bacterium transplantation experiments, the role of key microbial communities in regulating SCFAs metabolism and alleviating the intestinal toxicity of Euphorbiae Pekinensis Radix was clarified. Fecal extracts were then added to a co-culture system of Caco-2 and RAW264.7 cells, and toxicity differences were evaluated using intestinal tight junction proteins and inflammatory factors as indicators. Additionally, the application of a SCFAs receptor blocker helped confirm the role of SCFAs in reducing intestinal toxicity during vinegar-processing of Euphorbiae Pekinensis Radix. The results of this study indicated that vinegar-processing of Euphorbiae Pekinensis Radix improved the decline in SCFAs content caused by the raw material. Correlation analysis revealed that Bifidobacterium was positively correlated with the levels of acetic acid, propionic acid, isobutyric acid, n-butyric acid, isovaleric acid, and n-valeric acid. RESULTS:: from single-bacterium transplantation experiments demonstrated that Bifidobacterium could mitigate the reduction in SCFAs content induced by raw Euphorbiae Pekinensis Radix, enhance the expression of tight junction proteins, and reduce intestinal inflammation. Similarly, cell experiment results confirmed that fecal extracts from Bifidobacterium-transplanted mice alleviated inflammation and increased the expression of tight junction proteins in intestinal epithelial cells. The use of the free fatty acid receptor-2 inhibitor GLPG0974 verified that this improvement effect was related to the SCFAs pathway. This study demonstrates that Bifidobacterium is the key microbial community responsible for reducing intestinal toxicity in vinegar-processed Euphorbiae Pekinensis Radix. Vinegar-processing increases the abundance of Bifidobacterium, elevates the intestinal SCFAs content, inhibits intestinal inflammation, and enhances the expression of tight junction proteins, thereby improving the intestinal toxicity of Euphorbiae Pekinensis Radix.
Animals
;
Mice
;
Humans
;
Acetic Acid/chemistry*
;
Gastrointestinal Microbiome/drug effects*
;
Fatty Acids, Volatile/metabolism*
;
Bifidobacterium/genetics*
;
Caco-2 Cells
;
Intestines/microbiology*
;
Drugs, Chinese Herbal/chemistry*
;
Euphorbia/toxicity*
;
RAW 264.7 Cells
;
Male
;
Feces/chemistry*
;
Intestinal Mucosa/drug effects*

Result Analysis
Print
Save
E-mail