1.Construction and in vitro osteogenic activity study of magnesium-strontium co-doped hydroxyapatite mineralized collagen
WANG Meng ; SUN Yifei ; CAO Xiaoqing ; WEI Yiyuan ; CHEN Lei ; ZHANG Zhenglong ; MU Zhao ; ZHU Juanfang ; NIU Lina
Journal of Prevention and Treatment for Stomatological Diseases 2026;34(1):15-28
Objective:
To investigate the efficacy of magnesium-strontium co-doped hydroxyapatite mineralized collagen (MSHA/Col) in improving the bone repair microenvironment and enhancing bone regeneration capacity, providing a strategy to address the insufficient biomimetic composition and limited bioactivity of traditional hydroxyapatite mineralized collagen (HA/Col) scaffolds.
Methods:
A high-molecular-weight polyacrylic acid-stabilized amorphous calcium magnesium strontium phosphate precursor (HPAA/ACMSP) was prepared. Its morphology and elemental distribution were characterized by high-resolution transmission electron microscopy (TEM) and energy-dispersive spectroscopy. Recombinant collagen sponge blocks were immersed in the HPAA/ACMSP mineralization solution. Magnesium-strontium co-doped hydroxyapatite was induced to deposit within collagen fibers (experimental group: MSHA/Col; control group: HA/Col). The morphological characteristics of MSHA/Col were observed using scanning electron microscopy (SEM). Its crystal structure and chemical composition were analyzed by X-ray diffraction and Fourier transform infrared spectroscopy, respectively. The mineral phase content was evaluated by thermogravimetric analysis. The scaffold's porosity, ion release, and in vitro degradation performance were also determined. For cytological experiments, CCK-8 assay, live/dead cell staining, alkaline phosphatase staining, alizarin red S staining, RT-qPCR, and western blotting were used to evaluate the effects of the MSHA/Col scaffold on the proliferation, viability, early osteogenic differentiation activity, late mineralization capacity, and gene and protein expression levels of key osteogenic markers [runt-related transcription factor 2 (Runx2), collagen type Ⅰ (Col-Ⅰ), osteopontin (Opn), and osteocalcin (Ocn)] in mouse embryonic osteoblast precursor cells (MC3T3-E1).
Results:
HPAA/ACMSP appeared as amorphous spherical nanoparticles under TEM, with energy spectrum analysis showing uniform distribution of carbon, oxygen, calcium, phosphorus, magnesium, and strontium elements. SEM results of MSHA/Col indicated successful complete intrafibrillar mineralization. Elemental analysis showed the mass fractions of magnesium and strontium were 0.72% (matching the magnesium content in natural bone) and 2.89%, respectively. X-ray diffraction revealed characteristic peaks of hydroxyapatite crystals (25.86°, 31°-34°). Infrared spectroscopy results showed characteristic absorption peaks for both collagen and hydroxyapatite. Thermogravimetric analysis indicated a mineral phase content of 78.29% in the material. The scaffold porosity was 91.6% ± 1.1%, close to the level of natural bone tissue. Ion release curves demonstrated sustained release behavior for both magnesium and strontium ions. The in vitro degradation rate matched the ingrowth rate of new bone tissue. Cytological experiments showed that MSHA/Col significantly promoted MC3T3-E1 cell proliferation (130% increase in activity at 72 h, P < 0.001). MSHA/Col exhibited excellent efficacy in promoting osteogenic differentiation, significantly upregulating the expression of osteogenesis-related genes and proteins (Runx2, Col-Ⅰ, Opn, Ocn) (P < 0.01).
Conclusion
The MSHA/Col scaffold achieves dual biomimicry of natural bone in both composition and structure, and effectively promotes osteogenic differentiation at the genetic and protein levels, breaking through the functional limitations of pure hydroxyapatite mineralized collagen. This provides a new strategy for the development of functional bone repair materials
2.A small-molecule anti-cancer drug for long-acting lysosomal damage.
Shulin ZHAO ; Qingjie BAI ; Guimin XUE ; Juan WANG ; Luyao HU ; Xueqian WANG ; Yan LI ; Shuai LU ; Yangang SUN ; Zhiqiang ZHANG ; Yanling MU ; Yanle ZHI ; Qixin CHEN
Acta Pharmaceutica Sinica B 2025;15(11):5867-5879
Lysosomes represent a promising target for cancer therapy and reducing drug resistance. However, the short treatment time and low efficiency of lysosomal targeting have limited the application in lysosome-targeting anticancer drugs. In this study, we proposed an adhesive-bandage approach and synthesized a new lysosomal targeting drug, namely long-term lysosome-targeting anticancer drug (LLAD). It contains a SLC38A9-targeting covalently bound moiety and an alkaline component both to prolong the inhibition of SLC38A9 in lysosomes and alkalinize lysosomes. Upon short term and low-dose treatment of HeLa cells, at passage 0, with LLAD, it rapidly alkalinized lysosomes and also can be detected in lysosomes even at passage 15. LLAD induced apoptosis in HeLa cells through long-term lysosomal damage, and showed better long-term anticancer effect than cisplatin in vivo. Overall, our study paves the way for developing long-term lysosomal targeting drugs to treat cancer and overcome the drug resistance of cancer cells, and also provides a candidate drug, LLAD, for treating cancer.
3.Prediction of lymph node metastasis in invasive lung adenocarcinoma based on radiomics of the primary lesion, peritumoral region, and tumor habitat: A single-center retrospective study
Hongchang WANG ; Yan GU ; Wenhao ZHANG ; Guang MU ; Wentao XUE ; Mengen WANG ; Chenghao FU ; Liang CHEN ; Mei YUAN ; Jun WANG
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2025;32(08):1079-1085
Objective To predict the lymph node metastasis status of patients with invasive pulmonary adenocarcinoma by constructing machine learning models based on primary tumor radiomics, peritumoral radiomics, and habitat radiomics, and to evaluate the predictive performance and generalization ability of different imaging features. Methods A retrospective analysis was performed on the clinical data of 1 263 patients with invasive pulmonary adenocarcinoma who underwent surgery at the Department of Thoracic Surgery, Jiangsu Province Hospital, from 2016 to 2019. Habitat regions were delineated by applying K-means clustering (average cluster number of 2) to the grayscale values of CT images. The peritumoral region was defined as a uniformly expanded area of 3 mm around the primary tumor. The primary tumor region was automatically segmented using V-net combined with manual correction and annotation. Subsequently, radiomics features were extracted based on these regions, and stacked machine learning models were constructed. Model performance was evaluated on the training, testing, and internal validation sets using the area under the receiver operating characteristic curve (AUC), F1 score, recall, and precision. Results After excluding patients who did not meet the screening criteria, a total of 651 patients were included. The training set consisted of 468 patients (181 males, 287 females) with an average age of (58.39±11.23) years, ranging from 29 to 78 years, the testing set included 140 patients (56 males, 84 females) with an average age of (58.81±10.70) years, ranging from 34 to 82 years, and the internal validation set comprised 43 patients (14 males, 29 females) with an average age of (60.16±10.68) years, ranging from 29 to 78 years. Although the habitat radiomics model did not show the optimal performance in the training set, it exhibited superior performance in the internal validation set, with an AUC of 0.952 [95%CI (0.87, 1.00)], an F1 score of 84.62%, and a precision-recall AUC of 0.892, outperforming the models based on the primary tumor and peritumoral regions. Conclusion The model constructed based on habitat radiomics demonstrated superior performance in the internal validation set, suggesting its potential for better generalization ability and clinical application in predicting lymph node metastasis status in pulmonary adenocarcinoma.
4.Safety and efficacy of intense pulsed light therapy for primary Sjögren's syndrome-related dry eye
Mei SUN ; Yusong HE ; Li CHEN ; Yan SUN ; Ning MU ; Yumeng WANG ; Mingxin LI ; He WANG
International Eye Science 2025;25(11):1740-1747
AIM: To evaluate the clinical efficacy of intense pulsed light(IPL)therapy in patients with primary Sjogren's syndrome-related dry eye(SS-DE).METHODS:In this prospective randomized trial, 82 cases(82 eyes)diagnosed with moderate-to-severe SS-DE at our hospital from January 2023 to December 2023 were selected. If both eyes meet the criteria, one eye will be randomly selected for inclusion, and if one eye meets the inclusion criteria, the eye will be selected for enrollment. They were randomly assigned to either an experiment group receiving dextran hydroxypropyl methylcellulose eye drops and 0.05% cyclosporine A eye drops plus IPL therapy, or a control group receiving dextran hydroxypropyl methylcellulose eye drops and 0.05% cyclosporine A eye drops. Ocular surface disease index(OSDI)score, tear meniscus height(TMH), noninvasive tear breakup time(NITBUT), meibomian gland loss score, Schirmer I test(SⅠt), corneal fluorescein staining(CFS)score, conjunctival lissamine green staining(CLGS)score, lipid layer thickness(LLT), blink frequency, corneal Langerhans cell density(CLCD)and complications of both groups were assessed at baseline and at 4, 8, and 12 wk after treatment.RESULTS:There were 6 cases lost to follow-up in the experiment group, with a missing rate of 14.6%, and 1 case was lost to follow-up in the control group, with a missing rate of 2.4%, and valid data were eventually obtained from 35 cases(35 eyes)in the experiment group and 40 cases(40 eyes)in the control group. Baseline parameters did not differ significantly between the two groups of patients(all P>0.05). At 4, 8 and 12 wk after treatment, both groups showed significant reductions in OSDI scores, CFS scores, CLGS score, blink frequency, and CLCD, while the reductions were significantly greater in the experiment group compared to the control group(all P<0.05). The experiment group also demonstrated significant increases in TMH, SⅠt, and NITBUT at 4, 8 and 12 wk after treatment, which were significantly greater than those observed in the control group(all P<0.05). No significant intergroup differences were observed in LLT, meibomian gland loss score in the experiment group at any time point(all P>0.05). Furthermore, no severe ocular or cutaneous complications were associated with IPL treatment.CONCLUSION:IPL significantly improves ocular signs and symptoms, enhances aqueous tear secretion, and reduces ocular surface inflammation in patients with SS-DE, with no significant adverse reactions observed.
5.Multiple biomarkers risk score for accurately predicting the long-term prognosis of patients with acute coronary syndrome.
Zhi-Yong ZHANG ; Xin-Yu WANG ; Cong-Cong HOU ; Hong-Bin LIU ; Lyu LYU ; Mu-Lei CHEN ; Xiao-Rong XU ; Feng JIANG ; Long LI ; Wei-Ming LI ; Kui-Bao LI ; Juan WANG
Journal of Geriatric Cardiology 2025;22(7):656-667
BACKGROUND:
Biomarkers-based prediction of long-term risk of acute coronary syndrome (ACS) is scarce. We aim to develop a risk score integrating clinical routine information (C) and plasma biomarkers (B) for predicting long-term risk of ACS patients.
METHODS:
We included 2729 ACS patients from the OCEA (Observation of cardiovascular events in ACS patients). The earlier admitted 1910 patients were enrolled as development cohort; and the subsequently admitted 819 subjects were treated as validation cohort. We investigated 10-year risk of cardiovascular (CV) death, myocardial infarction (MI) and all cause death in these patients. Potential variables contributing to risk of clinical events were assessed using Cox regression models and a score was derived using main part of these variables.
RESULTS:
During 16,110 person-years of follow-up, there were 238 CV death/MI in the development cohort. The 7 most important predictors including in the final model were NT-proBNP, D-dimer, GDF-15, peripheral artery disease (PAD), Fibrinogen, ST-segment elevated MI (STEMI), left ventricular ejection fraction (LVEF), termed as CB-ACS score. C-index of the score for predication of cardiovascular events was 0.79 (95% CI: 0.76-0.82) in development cohort and 0.77 (95% CI: 0.76-0.78) in the validation cohort (5832 person-years of follow-up), which outperformed GRACE 2.0 and ABC-ACS risk score. The CB-ACS score was also well calibrated in development and validation cohort (Greenwood-Nam-D'Agostino: P = 0.70 and P = 0.07, respectively).
CONCLUSIONS
CB-ACS risk score provides a useful tool for long-term prediction of CV events in patients with ACS. This model outperforms GRACE 2.0 and ABC-ACS ischemic risk score.
6.Gallstones, cholecystectomy, and cancer risk: an observational and Mendelian randomization study.
Yuanyue ZHU ; Linhui SHEN ; Yanan HUO ; Qin WAN ; Yingfen QIN ; Ruying HU ; Lixin SHI ; Qing SU ; Xuefeng YU ; Li YAN ; Guijun QIN ; Xulei TANG ; Gang CHEN ; Yu XU ; Tiange WANG ; Zhiyun ZHAO ; Zhengnan GAO ; Guixia WANG ; Feixia SHEN ; Xuejiang GU ; Zuojie LUO ; Li CHEN ; Qiang LI ; Zhen YE ; Yinfei ZHANG ; Chao LIU ; Youmin WANG ; Shengli WU ; Tao YANG ; Huacong DENG ; Lulu CHEN ; Tianshu ZENG ; Jiajun ZHAO ; Yiming MU ; Weiqing WANG ; Guang NING ; Jieli LU ; Min XU ; Yufang BI ; Weiguo HU
Frontiers of Medicine 2025;19(1):79-89
This study aimed to comprehensively examine the association of gallstones, cholecystectomy, and cancer risk. Multivariable logistic regressions were performed to estimate the observational associations of gallstones and cholecystectomy with cancer risk, using data from a nationwide cohort involving 239 799 participants. General and gender-specific two-sample Mendelian randomization (MR) analysis was further conducted to assess the causalities of the observed associations. Observationally, a history of gallstones without cholecystectomy was associated with a high risk of stomach cancer (adjusted odds ratio (aOR)=2.54, 95% confidence interval (CI) 1.50-4.28), liver and bile duct cancer (aOR=2.46, 95% CI 1.17-5.16), kidney cancer (aOR=2.04, 95% CI 1.05-3.94), and bladder cancer (aOR=2.23, 95% CI 1.01-5.13) in the general population, as well as cervical cancer (aOR=1.69, 95% CI 1.12-2.56) in women. Moreover, cholecystectomy was associated with high odds of stomach cancer (aOR=2.41, 95% CI 1.29-4.49), colorectal cancer (aOR=1.83, 95% CI 1.18-2.85), and cancer of liver and bile duct (aOR=2.58, 95% CI 1.11-6.02). MR analysis only supported the causal effect of gallstones on stomach, liver and bile duct, kidney, and bladder cancer. This study added evidence to the causal effect of gallstones on stomach, liver and bile duct, kidney, and bladder cancer, highlighting the importance of cancer screening in individuals with gallstones.
Humans
;
Mendelian Randomization Analysis
;
Gallstones/complications*
;
Female
;
Male
;
Cholecystectomy/statistics & numerical data*
;
Middle Aged
;
Risk Factors
;
Aged
;
Adult
;
Neoplasms/etiology*
;
Stomach Neoplasms/epidemiology*
7.Current situation of clinical trial registration in acupuncture anesthesia: A scoping review.
Yue LI ; You-Ning LIU ; Zhen GUO ; Mu-En GU ; Wen-Jia WANG ; Yi ZHU ; Xiao-Jun ZHUANG ; Li-Ming CHEN ; Jia ZHOU ; Jing LI
Journal of Integrative Medicine 2025;23(3):256-263
BACKGROUND:
Modern acupuncture anesthesia is a combination of Chinese and Western medicine that integrates the theories of acupuncture with anesthesia. However, some clinical studies of acupuncture anesthesia lack specific descriptions of randomization, allocation concealment, and blinding processes, with subsequent systematic reviews indicating a risk of bias.
OBJECTIVE:
Clinical trial registration is essential for the enhancement of the quality of clinical trials. This study aims to summarize the status of clinical trial registrations for acupuncture anesthesia listed on the World Health Organization International Clinical Trials Registry Platform (ICTRP).
SEARCH STRATEGY:
We searched the ICTRP for clinical trials related to acupuncture anesthesia registered between January 1, 2001 and May 31, 2023. Additionally, related publications were retrieved from PubMed, Cochrane Library, Embase, China National Knowledge Infrastructure, China Science and Technology Journal Database, and Wanfang Data. Registrations and publications were analyzed for consistency in trial design characteristics.
INCLUSION CRITERIA:
Clinical trials that utilized one of several acupuncture-related therapies in combination with pharmacological anesthesia during the perioperative period were eligible for this review.
DATA EXTRACTION AND ANALYSIS:
Data extracted from articles included type of surgical procedure, perioperative symptoms, study methodology, type of intervention, trial recruitment information, and publication information related to clinical enrollment.
RESULTS:
A total of 166 trials related to acupuncture anesthesia from 21 countries were included in the analysis. The commonly reported symptoms in the included studies were postoperative nausea and vomiting (19.9%) and postoperative pain (13.3%). The concordance between the publications and the trial protocols in the clinical registry records was poor, with only 31.7% of the studies being fully compatible. Inconsistency rates were high for sample size (39.0%, 16/41), blinding (36.6%, 15/41), and secondary outcome indicators (24.4%, 10/41).
CONCLUSION
The volume of acupuncture anesthesia clinical trials registered in international trial registries over the last 20 years is low, with insufficient disclosure of results. Postoperative nausea and vomiting as well as postoperative pain, are the most investigated for acupuncture intervention. Please cite this article as: Li Y, Liu YN, Guo Z, Gu ME, Wang WJ, Zhu Y, Zhuang XJ, Chen LM, Zhou J, Li J. Current situation of clinical trial registration in acupuncture anesthesia: A scoping review. J Integr Med. 2025; 23(3): 256-263.
Humans
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Acupuncture Analgesia
;
Acupuncture Therapy
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Anesthesia
;
Clinical Trials as Topic
;
Registries
8.Research progress in online monitoring technologies for workplace dust concentration
Qiangzhi GUO ; Yuntao MU ; Jinning YU ; Chuntao GE ; Chen WANG ; Zhiguo ZHOU ; Xue JIANG ; Yazhen WANG ; Jinling LIU ; Di LIU ; Shibiao SU
China Occupational Medicine 2025;52(4):472-476
Occupational pneumoconiosis remains the most common occupational disease in China, with occupational mineral dust exposure being its primary causative factor. Although national standards for online monitoring and early warning systems of coal mine dust concentrations have been established, national occupational health standards for rapid and online monitoring of dust concentration and particle size distribution in other industries are still limited. Among dust concentration sensor technologies, the light scattering method is the preferred choice for online dust monitoring owing to its wide measurement range and low cost. The beta-ray absorption method is mature but highly sensitive to humidity. The electrostatic induction method offers high sensitivity, simple structure, and low maintenance costs but exhibits high errors in low-concentration dust monitoring. The tapered element oscillating microbalance method is highly sensitive but costly. Multi-sensor data fusion technology can improve monitoring reliability, however, mature domestic products are not yet available. For monitoring dust particle size distribution, sieving and sedimentation methods are cumbersome. The aerodynamic method shows broad prospects in the online monitoring of respirable dust but has obvious measurement errors for larger dust particles. The use of optical measurement method is limited by dust morphology and is not suitable for monitoring coal dust particle size distribution. The electrical mobility method is primarily applicable to submicron dust. Future research should focus on promoting the application of monitoring technology for respirable dust particle size distribution in online monitoring of industrial dust. By integrating Internet of Things, data mining, and artificial intelligence technologies, along with multi-sensor data fusion and numerical simulation, dust concentration prediction models can be established to achieve accurate dust concentration monitoring and early warning of exceedances. The advancements of technologies will provide scientific support for the assessment of industrial dust hazards and the prevention and control of occupational pneumoconiosis.
9.Simultaneous detection of 34 emerging contaminants in tap water by HPLC-MS/MS and health risk assessment
Yixuan CAO ; Ziwei YUAN ; Xiaoxi MU ; Chenshan LV ; Haiyan CUI ; Tao WANG ; Zhiwen WEI ; Zhongbing CHEN ; Hongyan ZOU ; Keming YUN ; Meng HU
Chinese Journal of Forensic Medicine 2024;39(1):31-38
Objective To establish a simultaneous detection approach for 34 emerging contaminants(ECs)in tap water by liquid chromatography-tandem mass spectrometry(HPLC-MS/MS).Human health risk assessment was performed according to the detection results from 43 tap water samples.Methods Tap water samples were concentrated and extracted by solid phase extraction,and then blown to near dry by nitrogen at 40℃.The sample extracts were dissolved in methanol-water solution(95:5,VN)to 0.5 mL for analyzing.Agilent Jet Stream Electrospray Ionization(AJS ESI)and the multiple reaction monitoring(MRM)mode were performed for MS to acquire the data of 34 ECs.A database including precursor ion,product ion and retention times was established accordingly.Results The average linear correlation coefficients(r)of 34 kinds of ECs was 0.995 9.The limits of detection were 0.01~0.60 ng/L and the recoveries were between 60.7%and 119.8%.The intra-group precisions were between 0.05%~9.89%and the intra-day precisions were between 0.20%~14.40%for the spiked samples.The method was applied to analyze 43 tap water samples and a total of 15 ECs were detected.According to the results,the detection rate of caffeine was the highest(84%),and the concentration range was ND~74.42 ng/L.Among all the ECs detected,1,2,3-benzotriazole had the highest concentration(ND~361.15 ng/L),where detection rate was 44%.Humans may be exposed to these ECs by drinking the tap water.The human health risk assessments of 12 kinds of ECs were carried out,however,the estimated risk was negligible(risk quotient<0.01).Conclusion The method is simple,highly sensitive and selective,and could meet the detection needs of ECs at trace level in tap water.There was no human health risk posed for ECs identified in 43 tap water samples analyzed by this method.
10.Mechanism of Nephrotoxicity Induced by Ecliptasaponin A Based on Computational Toxicology
Han LI ; Ling SONG ; Yunhang GAO ; Tengfei CHEN ; Suzhen MU ; Weiya CHEN ; Guangping ZHANG ; Wang HUO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(23):72-80
ObjectiveTo predict the potential nephrotoxic components in traditional Chinese medicine health food products based on the Traditional Chinese Medicine Toxicity Alert System and Basic Toxicology Database (TCMTAS-BTD), screen and validate the predicted components by cell and animal experiments, and decipher the mechanism of nephrotoxicity by network pharmacology. MethodTCMTAS-BTD was utilized to predict the toxicity of 3 540 compounds found in the catalogue of traditional Chinese health food ingredients. In the cell experiment, the top 5 compounds with high toxicity probability were screened by measurement of cell proliferation and viability (CCK-8) and high-content screening. ICR mice were randomized into a control group, a low-dose (2.91 mg·kg-1·d-1) ecliptasaponin A, and a high-dose (29.1 mg·kg-1·d-1) ecliptasaponin A group, with 10 mice in each group, and treated continuously for 28 days. During the experiment, the general conditions of the rats were observed, and the kidney index was calculated. The levels of serum creatinine (SCr) and blood urea nitrogen (BUN) in the serum as well as the content of malondialdehyde (MDA) and superoxide dismutase (SOD) in the renal tissue were measured. The pathological changes of the kidney were observed. Network pharmacology was employed to predict the potential pathways of nephrotoxicity. Finally, the pathway-associated proteins were validated by Western blot. ResultThe top 5 compounds with high probability of nephrotoxicity were ecliptasaponin A, chrysophanol, rutaecarpine, tanshinoneⅠ, and geniposidic acid. In the cell experiment, CCK-8 results showed that 10 μmol·L-1 ecliptasaponin A, 60 μmol·L-1 chrysophanol, 40 μmol·L-1 rutaecarpine, and 20 μmol·L-1 tanshinone I altered the viability of HK-2 cells. High-content analysis showed that 10 μmol·L-1 ecliptasaponin A, chrysophanol, rutaecarpine, and tanshinone Ⅰ reduced the cell number (P<0.05, P<0.01). The animal experiment showed that the mice in the high-dose ecliptasaponin A group presented slow movement, slow weight gain (P<0.01), increased kidney index (P<0.01), elevated SCr, BUN, and MDA levels (P<0.01), and lowered SOD level (P<0.01). Mild histopathological changes were observed in the high-dose ecliptasaponin A group. The network pharmacology results showed that the key targets of nephrotoxicity induced by ecliptasaponin A were mainly enriched in the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt) signaling pathway, prostatic cancer and lipid and atherosclerosis pathways. Western blot results verified that high dose of ecliptasaponin A raised the phosphorylation levels of PI3K and Akt (P<0.01). ConclusionOn day 28 of administration, 29.1 mg·kg-1 ecliptasaponin A was found to induce renal injury in rats. The mechanism may be related with the PI3K/Akt signaling pathway, which implied that excessive and prolonged usage of Ecliptae Herba may increase the incidence of adverse drug reactions.


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