1.Combination of Components from Tripterygii Radix et Rhizoma-Chuanxiong Rhizoma Affects RA-FLSs by Regulating NF-κB, Nrf2/HO-1 Signaling Pathways and Bcl-2/Caspase-3 Expression
Yongmei GUAN ; Zhiyan WAN ; Shuhui WANG ; Weifeng ZHU ; Zhiyong LIU ; Cheng JIANG ; Zhenzhong ZANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(2):17-26
ObjectiveTo investigate the effects of the combination of components from Tripterygii Radix et Rhizoma and Chuanxiong Rhizoma on rheumatoid arthritis fibroblast-like synoviocytes (RA-FLSs) and the underlying mechanism. MethodsRA-FLSs were grouped as follows: blank control, positive control (methotrexate), Tripterygii Radix et Rhizoma components, Chuanxiong Rhizoma components, and components from Tripterygii Radix et Rhizoma+Chuanxiong Rhizoma. The cell-counting kit-8 (CCK-8) assay was employed to the cell proliferation, invasion, and apoptosis. The levels of tumor necrosis factor (TNF)-α, interleukin (IL)-6, reactive oxygen species (ROS), and malondiadehyde (MDA) in cells were measured. Western blot was employed to determine the protein levels of nuclear factor erythroid 2-related factor 2 (Nrf2), heme oxygenase-1 (HO-1), nuclear factor-kappa B (NF-κB) p65, phosphorylated inhibitory subunit of NF-κBα (p-IκBα), cysteinyl aspartate-specific protease-3 (Caspase-3), and B-cell lymphoma 2 (Bcl-2). Real-time PCR was employed to determine the mRNA levels of Nrf2, HO-1, and NF-κB p65. ResultsThe cells in the groups of positive control, Tripterygii Radix et Rhizoma components, Chuanxiong Rhizoma components, and components from Tripterygii Radix et Rhizoma+Chuanxiong Rhizoma were treated with 2.50 mg·L-1 methotrexate, 0.20 mg·L-1 triptolide + 0.20 mg·L-1 celastrol, 5.00 mg·L-1 ferulic acid + 20.00 mg·L-1 ligustrazine, 0.20 mg·L-1 triptolide + 0.20 mg·L-1 celastrol + 5.00 mg·L-1 ferulic acid + 20.00 mg·L-1 ligustrazine, respectively. Compared with the blank control group, drug administration reduced the proliferation and invasion and increased the apoptosis of cells (P<0.01), lowered the levels of TNF-α, IL-6, ROS, and MDA (P<0.01), up-regulated the mRNA and protein levels of Caspase-3, Nrf2, and HO-1 (P<0.01), and down-regulated the mRNA and protein levels of Bcl-2, NF-κB p65, and p-IκBα (P<0.01). Compared with the Tripterygii Radix et Rhizoma components group, the combination of components from Tripterygii Radix et Rhizoma+Chuanxiong Rhizoma inhibited the proliferation and invasion (P<0.05) and promoted the apoptosis of RA-FLSs, up-regulated the mRNA levels of Nrf2 and HO-1 and protein levels of Nrf2 and Caspase-3 (P<0.05), and down-regulated the protein levels of NF-κB p65 and p-IκBα (P<0.05). ConclusionThe combination of components from Chuanxiong Rhizoma and Tripterygii Radix et Rhizoma can inhibit the proliferation and invasion and promote the apoptosis of RA-FLSs and alleviate oxidative stress and inflammation by inhibiting the NF-κB signaling pathway, activating the Nrf2/HO-1 pathway, and regulating the expression of Bcl-2/Caspase-3.
2.Research Progress on the Correlation Between Mitophagy and Vascular Cognitive Impairment
Yan LIU ; Xingang DONG ; Xiaoyuan WANG ; Gege QI ; Yiqin REN ; Lianpeng ZHOU ; Hui LI ; Suqing ZHANG ; Weifeng LI
Medical Journal of Peking Union Medical College Hospital 2025;16(2):338-349
Vascular cognitive impairment (VCI), caused by cerebrovascular dysfunction, severely impacts the quality of life in the elderly population, yet effective therapeutic approaches remain limited. Mitophagy, a selective mitochondrial quality-control mechanism, has emerged as a critical focus in neurological disease research. Accumulating evidence indicates that mitophagy modulates oxidative stress, neuroinflammation, and neuronal apoptosis. Key signaling pathways associated with mitophagy—including PINK1/Parkin, BNIP3/Nix, FUNDC1, PI3K/Akt/mTOR, and AMPK—have been identified as potential therapeutic targets for VCI. This review summarizes the mechanistic roles of mitophagy in VCI pathogenesis and explores emerging therapeutic strategies targeting these pathways, aiming to provide novel insights for clinical intervention and advance the development of effective treatments for VCI.
3.Cancer and neurotransmitter receptors.
Xiaoqiang WANG ; Muyan SHI ; Jie TIAN ; Weifeng YU
Chinese Medical Journal 2025;138(13):1540-1558
In recent years, growing evidence indicates that the nervous system plays an indispensable role in tumor development and metastasis. Elucidating crosstalk between the nervous system and tumor progression has thrived as a hot topic and a new direction for understanding cancer pathogenesis. Notably, many novel discoveries have suggested that neurotransmitter receptors (NRs) are not only widely expressed in cancer cells, but also play key roles in regulating cancer initiation and progression by diverse approaches. In this review, we summarized the latest advance in cancer neuroscience, especially emphasizing the important roles of different NRs in cancer development and prevention. The exemplary studies presented herein illustrate the emerging view that NRs are profoundly influential, manifested in tumor growth, apoptosis, angiogenesis, metastasis, resistance to drugs, and participate in the formation of neural-cancer interactions. In addition, NRs also regulate cellular metabolic processes and tumor microenvironment (TME) remodeling. More importantly, numerous basic and clinical studies have suggested that NRs may be potential targets for cancer treatments, and corresponding agonists or antagonists have been identified effectively in controlling tumor growth and metastasis. In conclusion, NRs are emerging as novel targets for anti-cancer drug exploration and clinical cancer treatments, while trying to uncover deeper mechanisms and connections between NRs and cancer is of high clinical significance and translational value.
Humans
;
Neoplasms/metabolism*
;
Receptors, Neurotransmitter/physiology*
;
Animals
;
Tumor Microenvironment/physiology*
4.Sub-committee of Anesthesiology of Guangzhou Integrated Traditional Chinese and Western Medicine Society.
Yi LU ; Cunzhi LIU ; Wujun GENG ; Xiaozhen ZHENG ; Jingdun XIE ; Guangfang ZHANG ; Chao LIU ; Yun LI ; Yan QU ; Lei CHEN ; Xizhao HUANG ; Hang TIAN ; Yuhui LI ; Hongxin LI ; Heying ZHONG ; Ronggui TAO ; Jie ZHONG ; Yue ZHUANG ; Junyang MA ; Yan HU ; Jian FANG ; Gaofeng ZHAO ; Jianbin XIAO ; Weifeng TU ; Jiaze SUN ; Yuting DUAN ; Bao WANG
Journal of Southern Medical University 2025;45(8):1800-1808
OBJECTIVES:
To explore the efficacy of DSA-guided intrathecal drug delivery system combined with Zi Wu Liu Zhu Acupoint Therapy for management of cancer pain and provide reference for its standardized clinical application. Methods and.
RESULTS:
Recommendations were formulated based on literature review and expert group discussion, and consensus was reached following expert consultation. The consensus recommendations are comprehensive, covering the entire treatment procedures from preoperative assessment and preparation, surgical operation process, postoperative management and traditional Chinese medicine treatment to individualized treatment planning. The study results showed that the treatment plans combining traditional Chinese with Western medicine effectively alleviated cancer pain, reduced the use of opioid drugs, and significantly improved the quality of life and enhanced immune function of the patients. Postoperative follow-up suggested good treatment tolerance among the patients without serious complications.
CONCLUSIONS
The formulated consensus is comprehensive and can provide reference for clinicians to use DSA-guided intrathecal drug delivery system combined with Zi Wu Liu Zhu Acupoint Therapy. The combined treatment has a high clinical value with a good safety profile for management of cancer pain.
Humans
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Medicine, Chinese Traditional
;
Cancer Pain/therapy*
;
Drugs, Chinese Herbal/therapeutic use*
;
Drug Delivery Systems
;
Pain Management/methods*
;
China
5.C-X-C motif chemokine ligand 12/C-X-C motif chemokine receptor 4 regulates oxygen glucose deprivation/reoxygenation-induced autophagy in SH-SY5Y neuronal cells.
Haining MENG ; Chao JIA ; Qingshu LI ; Weifeng XIE ; Sumei WANG ; Yan QU
Chinese Critical Care Medicine 2025;37(9):848-855
OBJECTIVE:
To explore the effects and mechanisms of the C-X-C motif chemokine ligand 12/C-X-C motif chemokine receptor 4 (CXCL12/CXCR4) signaling axis on apoptosis and autophagy in SH-SY5Y neuronal cells subjected to oxygen-glucose deprivation/reperfusion (OGD/R) model in vitro.
METHODS:
SH-SY5Y cells were divided into the following groups: OGD/R group and non-OGD/R group, with the OGD/R group subjected to OGD/R modeling and the non-OGD/R group receiving no treatment. Cells were also divided into CXCL12+ and CXCL12- groups; the CXCL12+ group received 0.1 mg/L exogenous recombinant CXCL12 (rhCXCL12) at reoxygenation, while the CXCL12- group did not. Another set of cells was divided into CXCL12+AMD3100 and CXCL12 groups; the CXCL12+AMD3100 group was pretreated with 2.5 mg/L AMD3100, a CXCR4 inhibitor, for 2 hours before OGD/R and received both 2.5 mg/L AMD3100 and 0.1 mg/L rhCXCL12 at reoxygenation, whereas the CXCL12 group received rhCXCL12 only. Additionally, cells were divided into small interfering RNA CXCR4 (siCXCR4) and small interfering RNA negative control (siNC) groups; the siCXCR4 group underwent CXCR4 knockdown before OGD/R modeling and received 0.1 mg/L rhCXCL12 at reoxygenation, while the siNC group, transfected with a negative control, received the same treatment. Protein expression of autophagy-related 16 (ATG16), microtubule-associated protein 1 light chain 3 (LC3), aquaporin-3 (AQP3), and CXCR4 was detected by Western blotting. Apoptosis rate and CXCR4 expression were measured by flow cytometry.
RESULTS:
Compared with the non-OGD/R group, the OGD/R group showed a significantly increased apoptosis rate and markedly decreased protein expression levels of ATG16, LC3, AQP3, and CXCR4 (all P < 0.05). CXCR4 fluorescent expression was also significantly reduced, suggesting that OGD/R simultaneously affects neuronal apoptosis and autophagy while inhibiting CXCR4 and AQP3 expression in SH-SY5Y cells. Compared with the CXCL12- group, the CXCL12+ group exhibited no significant change in apoptosis rate but demonstrated significantly increased protein expression of ATG16, LC3, and AQP3 (ATG16/GAPDH: 1.21±0.10 vs. 1.00±0.00; LC3/β-actin: 1.22±0.10 vs. 1.00±0.00; AQP3/β-actin: 1.26±0.04 vs. 1.00±0.00; all P < 0.05). CXCR4 expression was also significantly enhanced (fluorescence intensity: 1.19±0.05 vs. 1.00±0.00, P < 0.05), indicating that CXCL12 may promote autophagy in OGD/R-injured SH-SY5Y cells via the CXCR4/AQP3 pathway. Compared with the CXCL12 group, the CXCL12+AMD3100 group showed no significant difference in apoptosis rate but significantly lower protein levels of ATG16 and LC3 (ATG16/GAPDH: 0.75±0.08 vs. 1.00±0.00; LC3/GAPDH: 0.86±0.07 vs. 1.00±0.00; both P < 0.05), suggesting that CXCL12 induces autophagy in OGD/R SH-SY5Y cells through CXCR4. Compared with the siNC group, the siCXCR4 group showed no significant change in apoptosis rate but significantly reduced protein expression of ATG16, LC3, AQP3, and CXCR4 (ATG16/GAPDH: 0.76±0.06 vs. 1.00±0.00; LC3/GAPDH: 0.79±0.11 vs. 1.00±0.00; AQP3/GAPDH: 0.81±0.05 vs. 1.00±0.00; CXCR4/GAPDH: 0.86±0.04 vs. 1.00±0.00; all P < 0.05), indicating that CXCR4 knockdown suppresses OGD/R-induced autophagy in SH-SY5Y cells likely via AQP3.
CONCLUSIONS
The CXCL12/CXCR4 signaling axis can regulate OGD/R-induced autophagy in SH-SY5Y cells through AQP3 without affecting apoptosis, indicating a role for this pathway in neuronal autophagy during cerebral ischemia/reperfusion injury.
Humans
;
Receptors, CXCR4/metabolism*
;
Chemokine CXCL12/metabolism*
;
Autophagy
;
Glucose/metabolism*
;
Apoptosis
;
Neurons/cytology*
;
Oxygen/metabolism*
;
Signal Transduction
;
Cell Line, Tumor
;
Cell Hypoxia
;
Benzylamines
;
Cyclams
6.A nomogram model for predicting the 28-day death of patients with septic shock based on serum growth differentiation factor 11 and killer cell lectin-like receptor B1 was constructed.
Zhenzhen SANG ; Xiuyan PANG ; Jie CUI ; Weifeng WANG ; Xin RAO
Chinese Critical Care Medicine 2025;37(10):909-915
OBJECTIVE:
To observe change in serum growth differentiation factor 11 (GDF11) and killer cell lectin-like receptor B1 (KLRB1), to construct a nomogram model for 28-day death in patients with septic shock, and to explore its predictive value.
METHODS:
A prospective observational study was conducted. The patients with septic shock admitted to the emergency intensive care unit (ICU) of Cangzhou Central Hospital from September 2023 to March 2025 were selected as the septic shock group, the patients with sepsis admitted to the emergency general ward during the same period were selected as the sepsis group, and healthy individuals undergoing physical examination during the same period were selected as the control group. On the day of hospital admission or physical examination for the research subjects, the levels of serum GDF11 and KLRB1 were detected by enzyme-linked immunosorbent assay (ELISA). The patients with septic shock were divided into survival and death groups based on their 28-day survival status. The patients' gender, age, past medical history, infection site, severity of illness, mechanical ventilation, blood purification, infection indicators, biochemical indicators, coagulation function indicators, and blood lactic acid (Lac) were collected. The clinical data of the patients with septic shock between the two groups with different prognoses were compared. Multivariate Logistic regression analysis was used to screen the risk factors for 28-day death in patients with septic shock, and bivariate Pearson correlation analysis was conducted. A nomogram model was constructed based on the risk factors for 28-day death in patients with septic shock. The discrimination and calibration of the nomogram model were evaluated using the receiver operator characteristic curve (ROC curve), Hosmer-Lemeshow goodness-of-fit test, and calibration curve. The clinical utility of the model was evaluated using clinical decision curve analysis (DCA).
RESULTS:
A total of 168 patients in the emergency ICU were enrolled in the septic shock group, 40 patients in the emergency general ward were enrolled in the sepsis group, and 40 healthy individuals were enrolled in the control group. Compared with the healthy control group, the serum GDF11 levels in the sepsis and septic shock groups were significantly increased (μg/L: 13.09±3.51, 19.28±5.36 vs. 4.17±0.92, both P < 0.05), and the serum KLRB1 levels were significantly decreased (ng/L: 57.36±11.28, 45.52±9.07 vs. 84.19±17.16, both P < 0.05), with more significant changes in the septic shock group (both P < 0.05). Among the 168 patients with septic shock, 96 survived and 72 died within 28 days. Compared with the survival group, the serum GDF11 level in the death group was significantly increased (μg/L: 24.24±4.81 vs. 15.56±4.62, P < 0.05), and the serum KLRB1 level was significantly decreased (ng/L: 28.53±8.69 vs. 58.26±9.45, P < 0.05). There were also statistically significant differences in sequential organ failure assessment (SOFA) score, acute physiology and chronic health evaluation II (APACHEII) score, procalcitonin (PCT), activated partial thromboplastin time (APTT), D-dimer, and Lac between the two groups. Multivariate Logistic regression analysis showed that SOFA score [odds ratio (OR) = 1.96, 95% confidence interval (95%CI) was 1.38-3.65), Lac (OR = 1.38, 95%CI was 1.09-2.01), GDF11 (OR = 1.54, 95%CI was 1.21-2.33) and KLRB1 (OR = 0.64, 95%CI was 0.41-0.78) were independent risk factors for 28-day death in patients with septic shock (all P < 0.05). Bivariate Pearson correlation analysis showed that SOFA score was significantly positively correlated with Lac and GDF11 (r value was 0.37 and 0.58, respectively, both P < 0.05), and significantly negatively correlated with KLRB1 (r = -0.72, P < 0.05). A nomogram model was constructed based on the risk factors for 28-day death in patients with septic shock. ROC curve analysis showed that the area under the ROC curve (AUC) of the nomogram model for predicting 28-day death in patients with septic shock was 0.963 (95%CI was 0.929-0.990), indicating that the model had good discrimination and predictive ability. The Hosmer-Lemeshow goodness-of-fit test (χ 2 = 9.578, P = 0.295) and calibration curve indicated that the predicted values of the model were in good agreement with the actual values. DCA indicated that the model provided a high net benefit for clinical decision-making.
CONCLUSIONS
The serum GDF11 level was significantly increased and the KLRB1 level was significantly decreased in patients with septic shock. The nomogram model based on GDF11 and KLRB1 could more accurately evaluate the 28-day death of patients with septic shock.
Humans
;
Shock, Septic/blood*
;
Nomograms
;
Prospective Studies
;
Prognosis
;
Male
;
Female
;
Middle Aged
;
Aged
;
Intensive Care Units
7.Risk assessment of hepatocellular carcinoma in patients with hepatitis B-related cirrhosis and hypertension:a propensity score matching-based retrospective cohort study
Jiawei HU ; Fang DU ; Lu DING ; Luxiang WANG ; Weifeng ZHAO
Journal of Southern Medical University 2024;44(11):2243-2249
Objective To analyze the factors affecting the risk of hepatocellular carcinoma(HCC)in patients with chronic hepatitis B-associated cirrhosis(CHB-Cir)complicated by essential hypertension(EH)and explore the impact of EH on HCC risk in patients with CHB-Cir.Methods This study was conducted among the patients with CHB-Cir with or without EH received antiviral therapy in the Infectious Disease Department,Third Affiliated Hospital of Xinxiang Medical University from January,2017 to January,2024.The cases with insufficient follow-up time or missing data were excluded.The patients were subjected to propensity score matching in a 1:1 ratio to form an EH group and a non-EH group.The Kaplan-Meier method was used to compare the cumulative incidence of HCC between the two groups,and the Cox proportional hazards regression model was used to analyze the risk of HCC and the factors affecting HCC risk.Results A total of 390 CHB-Cir patients(274 male and 116 female patients)were enrolled in this study,including 195 with EH and 195 without EH.In these patients,EH was significantly correlated with the occurrence of HCC(HR=1.69,P=0.002).Multivariate analysis suggested that the male gender(HR=1.73,P=0.005),a family history of liver cancer(HR=2.23,P<0.001),elevated alpha-fetoprotein(HR=2.83,P=0.001),elevated glutathione reductase(HR=1.53,P=0.046),reduced high-density lipoprotein(HR=1.46,P=0.027),and elevated low-density lipoprotein(HR=2.29,P=0.003)were all significantly correlated with HCC occurrence,while elevated triglycerides(HR=0.37,P<0.001)was a protective factor against HCC.In the EH group,treatment with non-RASIs drugs(HR=2.77,P=0.021)and no treatment/diuretic treatment(HR=7.18,P<0.001)were significantly correlated with HCC occurrence.Conclusion Hypertension increases the risk of HCC in patients with CHB-Cir,suggesting the importance of controlling hypertension in these patients.
8.An Empirical Study on the Use of Diagnosis Related Group Tools for Grouping Adjustments in Large Public Hospitals
Guojie ZHANG ; Xutong TAN ; Zhiling CAI ; Qiang XU ; Weifeng XU ; Yihang CHEN ; Yating WANG ; Jinhan LIU ; Zheng CHEN ; Jiong ZHOU ; Xiaojun MA
Medical Journal of Peking Union Medical College Hospital 2024;15(5):1052-1058
To analyze the disease group structure and its trends in key departments of large public hospitals using diagnosis related group (DRG) data, explore the key points of intervention and optimization of disease groups in departments, and further promote the rational allocation of department resources. We retrospectively collected DRG data from two surgical departments in a large public hospital in Beijing from 2017 to 2023. When the case mix index (CMI) of the two surgical departments declined, interventions such as performance appraisal, department education, and hospital publicity were promptly adopted. The changesin CMI values were observed and the trends in disease group weights, time consumption index, cost consumption index, and mortality rate in low-risk groups were analyzed. After the interventions, in surgical department Ⅰ, the proportion of patients with lower-weight diseases, such as major thyroid surgery (KD1), significantly decreased, while that of patients with higher-weight diseases, such as colorectal malignancy surgery (GB2) and pancreatic malignancy surgery (HB1), significantly increased. In surgical department Ⅱ, the proportion of patients with lower-weight diseases, such as chemotherapy (RE1), decreased markedly, while that of patients with higher-weight diseases, including major surgery for malignancy of kidney, ureter, and bladder (LA1), adrenal gland surgery (KC1), surgery for kidney/ureter/bladder except for major malignancy surgery (LB1), and male genital organ malignancy surgery (MA1), increased significantly. Both surgical departments achieved the goal of increasing their CMI values. In terms of efficiency, cost, and quality indicators, the time consumption index and cost consumption index of the two surgical departments were significantly lower than 1, and the mortality rate in low-risk groups was 0. Based on actual conditions and development goals, large public hospitals can achieve improvements in CMI values and optimization of disease group structures through reasonable interventions, thereby enhancing medical efficiency and rational utilization of resources.
9.Effects of repetitive transcranial magnetic stimulation on refractory tinnitus and regulation of brain function network
Shuangfeng YANG ; Min TU ; Lei ZHANG ; Yuling TAN ; Tingting PENG ; Chen GOU ; Weifeng CHEN ; Ling YANG ; Xiaoming WANG
Chinese Journal of Clinical Medicine 2024;31(4):619-627
Objective To observe the efficacy and safety of repetitive transcranial magnetic stimulation(rTMS)on refractory tinnitus and the differences of resting-state functional magnetic resonance imaging(rs-fMRI)imaging between before and after treatment,and to explore the possible central mechanism of rTMS regulation of tinnitus.Methods Thirty-seven patients with refractory tinnitus admitted in Affiliated Hospital of North Sichuan Medical College from September 2022 to February 2023 were selected and were divided into experimental group(n=20)and control group(n=1 7).The experimental group was given true rTMS treatment,and the control group was given sham stimulation with the same parameters.Tinnitus handicap inventory(THI)score,tinnitus loudness visual analogue scale(VAS)score and rs-fMRI scan were performed before and after treatment.Regional homogeneity(ReHo)was calculated after scanning,and the different brain regions were selected as the area of interest(ROI)and the whole brain functional connection(FC)was performed.Results There were no significant differences in age,gender,education level,tinnitus side,course of disease,hearing level,self-rating depression scale,self-rating anxiety scale the experimental group and control group.There were no significant differences in THI and VAS scores between the two groups before treatment;the THI and VAS scores in the experimental group decreased after 2 weeks of rTMS treatment(P<0.001),while there was no significant difference in the two scores in the control group before and after treatment.Only 3 patients in the experimental group experienced left facial muscle tremor or transient mild scalp pain during treatment,without other serious side effects.The ReHo of the left cerebellar area 9 increased in the experimental group after rTMS(P<0.005);the ReHo values in the right inferior temporal gyrus,left posterior central gyrus and left anterior central gyrus increased in the control group after intervention(P<0.005).The FCs between the right inferior temporal gyrus and the left orbital inferior frontal gyrus,the left anterior cingulate gyrus increased in the experimental group(P<0.005),and FC between the right inferior temporal gyrus and the left superior marginal gyrus decreased(P<0.005).The FCs between the right cuneus and the left fusiform gyrus,right superior occipital gyrus decreased in the experimental group after rTMS(P<0.005).The FC between the right cuneus and the left fusiform gyrus increased in the control group after intervention(P<0.005),while other FCs remained unchanged.Conclusions rTMS has a certain therapeutic effect on refractory tinnitus with higher safety;regulation of auditory brain network and related non-auditory brain network may be one of the central mechanisms of rTMS treating refractory tinnitus.
10.Study on Chemical Constituents in Thamnolia Subuliformis (Ehrh.) W.Culb. by UHPLC-Q-Exactive Focus-MS/MS
Shasha LI ; Zhibiao DI ; Jing HU ; Yajuan LI ; Ajuan MAO ; Fan LI ; Fang LI ; Hong ZHANG ; Weifeng WANG
Chinese Journal of Modern Applied Pharmacy 2024;41(1):71-79
OBJECTIVE
To conduct a rapid qualitative study on the chemical constituents of the methanol extract in Thamnolia subuliformis (Ehrh.) W.Culb. by UHPLC-Q-Exactive Focus-MS/MS.
METHODS
The chromatographic separation was performed on a Waters Acquity UPLC BEH C18(2.1 mm×50 mm, 1.7 μm) column with acetonitrile(A)-0.1% formic acid aqueous solution(B) as mobile phase for gradient elution, the flow rate was 0.3 mL·min–1 and the column temperature was 30 ℃. Mass spectrometry was performed using an electrospray ionization and data was collected in negative ion modes, and the detection range was m/z 80−1 200. The chemical constituents in Thamnolia subuliformis (Ehrh.) W.Culb. were identified rapidly and comprehensively based on the accurate relative molecular and combined with literature data and reference substances.
RESULTS
A total of 39 chemical constituents were speculatively identified, including 9 mono-substituted phenyl rings, 11 depsides, 5 depsidones, 2 dibenzofuran, 10 lipids, and 2 others.
CONCLUSION
The chemical constituents in the Thamnolia subuliformis (Ehrh.) W.Culb. can be identified accurately and rapidly by this method. Among them, 3 compounds(β-resorcylic acid, usnic acid, atranorin) are unambiguously identified by comparing with reference standards, 19 compounds are found from Thamnolia subuliformis (Ehrh.) W.Culb. for the first time. This paper can provide the important basis for study on pharmacodynamic material and substitute development of Thamnolia subuliformis (Ehrh.) W.Culb..


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