1.Progress on the mechanisms of prevention and treatment of radiation-induced intestinal injury using Chinese medicine monomers and application of nanotechnology for enhanced efficiency
Lei CHEN ; Zekun LI ; Chaoqun PI ; Yang HE ; Ming LI
Chinese Journal of Radiological Health 2025;34(4):614-624
Radiation-induced intestinal injury is caused by high dose of radiation in the abdomen and pelvis. The disease is characterized by complicated pathological mechanisms and poses significant challenges to clinical treatment, seriously affecting the quality of life and health of patients. Current treatments in modern medicine offer limited efficacy and are often associated with adverse side effects. Traditional Chinese medicine monomers inhibit inflammatory factors (e.g., tumor necrosis factor-α and interleukin-1β) and regulate the antioxidant enzyme system (e.g., improving the activity of superoxide dismutase) to effectively reduce the symptoms of radiation-induced intestinal injury with minimal side effects. Through targeted delivery of nanoparticles, nanotechnology can accurately deliver the active ingredients of traditional Chinese medicine to damaged intestinal tissues, thus improving their bioavailability and therapeutic effects. This paper reviews the mechanisms of Chinese medicine monomers in the prevention and treatment of radiation-induced intestinal injury and the application of nanotechnology for enhanced efficiency. The paper also discusses the clinical potential of these approaches. These results provide a reference for future research and clinical practice.
2.Design and Development Strategies for Multicomponent Co-delivery System of Traditional Chinese Medicine
Xiaojiao FENG ; Jilin WANG ; Wenzhuo YANG ; Tingen ZHANG ; Ziwei LI ; Qingqing ZHANG ; Rui LIU ; Zhidong LIU ; Jiaxin PI
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(5):186-196
Chinese materia medica has a wide range of clinical applications, but it has many active ingredients with different physicochemical properties, and the target organs, action pathways and mechanisms for different ingredients to exert their efficacy are not the same. Therefore, it is difficult to design and develop a co-delivery system loading multiple components of Chinese materia medica to maximize the synergistic therapeutic efficiency. Based on the characteristics of effectiveness and functionality of active ingredients, the strategies for multi-component co-delivery of Chinese materia medica can be categorized into two types:firstly, based on the effectiveness of active ingredients, new carriers such as liposomes, nanoparticles can be constructed to load multi-components of Chinese materia medica. secondly, based on the functionality of some active ingredients of Chinese materia medica, they are employed in the construction of co-delivery system, which can give play to the dual characteristics of their own efficacy and preparation functions. In this paper, we summarized the relevant research progress of the above two types of multi-component co-delivery strategies, and mainly discussed the pharmaceutical functions of the active ingredients in co-delivery systems, in order to find a more suitable multi-component co-delivery strategy, promoting the design and development of new delivery systems of Chinese materia medica.
3.Retrospective analysis on the effect of prevention and treatment of senile pulmonary tuberculosis in Hubei Province
Qi PI ; Jianjun YE ; Liping ZHOU ; Mengxian ZHANG ; Yeqing TONG ; Yu ZHANG ; Xingxing LU ; Chengfeng YANG
Journal of Public Health and Preventive Medicine 2024;35(2):44-47
Objective To retrospectively analyze the prevention and control effect and epidemic characteristics of elderly tuberculosis in Hubei Province from 2016 to 2020, and to provide a scientific basis for the prevention and treatment of elderly tuberculosis in Hubei Province. Methods The data on tuberculosis patients aged 60 and above who registered their current address in Hubei Province from 2016 to 2020 were collected and analyzed. The registration rates and composition ratios were analyzed using χ2 test and χ2 test for trend. Results A total of 135 976 tuberculosis patients were reported in Hubei from 2016 to 2020. The annual average registration rate of elderly tuberculosis among the elderly registered residence population (referring to the registration rate of elderly registered residence population aged 60 and above as the denominator, and tuberculosis patients aged 60 and above as the numerator) was 263.51/100 000. The highest rate was 300.02/100,000 in 2017, and the lowest was 188.19/100,000 in 2020 (χ2=70,227.603, P<0.001). In terms of composition, the average annual proportion of tuberculosis patients in the 60-70 years old group was 59.60%, which decreased year by year (χ2trend=40.448,P<0.001 ). The average annual proportion of males was 73.35%, which was significantly higher than that of females (26.65%). The average annual proportion of farmers was 62.03%. From the perspective of case management, the annual average proportion of major epidemic online reports was 85.17%. The classification of cases was mainly based on clinical diagnosis, accounting for 48.33% annually and showing a decreasing trend year by year (χ2trend=740.911, P<0.001). The proportion of confirmed cases was 25.08%, which showed an increasing trend (χ2trend=380.557, P<0.001). From 2016 to 2019, the delay rate of diagnosis and treatment of elder tuberculosis patients was 49.42% (67 876/135 967), and the delay rate decreased year by year (χ2trend=323.764, P<0.001). Conclusion The elderly population with pulmonary tuberculosis in Hubei Province shows a downward trend. It is necessary to focus on the efforts of designated hospitals to proactively identify cases, increase the proportion of confirmed cases, maintain a high tracking in place, reduce medical delays, and ensure the effectiveness of tuberculosis prevention and treatment for the elderly.
4.Metabonomic study of blood of mice with high-voltage electrical injury
Si-Yu CHEN ; Hui WANG ; Yan LUO ; Jia-Wen TAO ; Wen-Juan ZHANG ; Yang YUE ; Zheng-Ping YU ; Hui-Feng PI
Journal of Regional Anatomy and Operative Surgery 2024;33(2):100-106
Objective To explore the changes of metabonomics in blood of mice after high-voltage electric shock,then screen out the significantly changed differential metabolites and metabolic pathways.Methods The head of C57BL/6J mice was subjected to high-voltage electric shock(electric shock group)or exposed to acoustic and optical stimulation of high-voltage electric(control group),then the whole blood from mice were collected to separate serum.The dual platform combined metabonomic analysis based on gas chromatography-mass spectrometer(GC-MS)and liquid chromatography-mass spectrometer(LC-MS)was performed and orthogonal partial least squares discriminant analysis(OPLS-DA)was used to screen the differential metabolites and related metabolic pathways.Results A total of 415 differential metabolites were screened out in metabonomics in blood of mice after high-voltage electric shock,including 187 up-regulated and 228 down-regulated metabolites.These differentially metabolites were significantly enriched in metabolic pathways including central carbon metabolism in cancer,glucagon signaling pathway,etc.Conclusion By establishing the model of high-voltage electrical injury on experimental mice,this study reveals the significant change of metabolite content and metabolic pathway in blood by high-voltage electrical injury.Which provides a basis for the damage of blood metabolic activity by high-voltage electrical injury,and suggests the potential harm of high-voltage electrical injury to blood metabolic activity in the whole body.
5.Based on supramolecular chemistry to explore the scientific connotation of the compatibility between licorice and the insoluble mineral medicine gypsum
Yao-zhi ZHANG ; Wen-min PI ; Lin-ying WU ; Lu-ping YANG ; Shu-chang YAO ; Xiang ZHANG ; Xue-mei HUANG ; Peng-long WANG
Acta Pharmaceutica Sinica 2024;59(4):1048-1056
Licorice-gypsum (gancao-shigao, GC-SG) drug pair was used as the research object, using supramolecular chemistry to explore the scientific connotation of combining herbal medicine GC with insoluble mineral medicine SG in clinical application of traditional Chinese medicine. ① The Tyndall effect, microscopic morphology and particle size of the single and co-decocted of GC and SG were observed, the paste content and conductivity were determined, and the interaction between GC and SG was detected by isothermal titration calorimetry (ITC) and infrared absorption spectroscopy (IR). ② Calcium chloride (CaCl2), a soluble calcium salt of equal gypsum quality, was used instead of SG with GC for co-decocting to explore the effect of calcium salt content on the water decocting, and the characteristics were combined with the Tyndall effect, microscopic morphology, paste content and conductivity. ITC and IR techniques were used to detect the interaction between the two, and the interaction between them was detected by ITC and IR. The zeta potential and ultraviolet-visible spectrophotometry (UV-vis) of GC-SG and GC-CaCl2 co-decoction were compared, and the inorganic and organic components in the co-decoction were detected by inductively coupled plasma optical emission spectrometer (ICP-OES) and high performance liquid chromatography (HPLC). The results showed: ① Compared with the liquid phase of single decoction, GC-SG co-decoction had more obvious Tyndall effect, and showed uniform spherical nanoparticles under electron microscope. Physical characterization results such as paste content and conductivity showed that co-decoction promoted the dissolution of each other's components; ITC and IR results showed that there was strong interaction between GC and SG, which preliminatively indicated that GC and SG co-decoction promoted the formation of uniform and stable supramolecular system of traditional Chinese medicine. ② When soluble calcium salt was used to substitute insoluble SG with GC for co-decocting, a stronger but astigmatic light path appeared than single decocting solution, the zeta potential was reduced, and a large number of accumulated polymers were formed. The results of paste content and conductivity showed that the dissolution of the co-decocting component was reduced than the single decocting component. ITC, UV-vis and IR results showed that there was interaction between GC with Ca2+ and SG. The formation of polysink indicated that a large amount of soluble calcium salt would destroy the stability of supramolecular Chinese medicine. The results of ICP-OES and HPLC showed that the glycyrrhizic acid (GA) content of the former lower than the latter, which was related to the formation of a large number of polycondensates with the increase of Ca2+ concentration and the decrease of the dissolution of GA and other active ingredients. This study indicates that the compatibility of GC and SG can form a uniform and stable supramolecular system of traditional Chinese medicine. Calcium salt, the main component of SG, is taken as the starting point. Excessive soluble Ca2+ can promote the aggregation of active ingredients such as GA, so as to reveal the scientific connotation of the compatibility of GC and SG, an insoluble mineral medicine.
6.Bibliometric analysis of active surveillance of post-marketing drug safety
Conghui WANG ; Ziming YANG ; Zhenxing WANG ; Wei SHI ; Hua ALATENG ; Chengwei XI ; Songning PI ; Xinmin YUAN ; Siyan ZHAN
Chinese Journal of Pharmacoepidemiology 2024;33(9):1054-1063
Objective To conduct bibliometric visualization analyses of the literature domestic and overseas on active surveillance of post-marketing safety of drugs,aiming to display the current status and trend of hotspots in this field and to provide references for future research and the improvement of the Chinese management system of active surveillance.Methods The English and Chinese literature on active surveillance of post-marketing safety of drugs were searched in Web of Science and CNKI respectively and imported into CiteSpace 6.3.R2 software for the analysis of the number of publications,authors,institutions,and national cooperative networks,and the analysis of keyword co-occurrence,clustering and emergence.Results 415 Chinese and 676 English literature were included,with an overall increasing trend in annual publication volume.The author collaboration network of Chinese literature was smaller than that of English literature,and the partnership network was sparse,with no strong centralized institution.Domestic drug regulatory agencies played an important role in the field,while drug companies'monitoring research on their own products was still relatively scarce.The research topic covered active surveillance systems,technical method research,and drug safety active surveillance practice research for specific drugs and diseases.Conclusion Countries worldwide have widely considered active surveillance of post-marketing drug safety.The heat of research activities in China has shown a significant growth trend.However,there is still a significant gap compared with the international frontiers.Further cooperation needs to be strengthened to promote the improvement of the active surveillance management system in China.
7.Risk factor analysis for new fractures in other vertebrae after percutaneous vertebroplasty
Xin YANG ; Wenjie PI ; Sukai LI
Chongqing Medicine 2024;53(18):2793-2798,2803
Objective To explore the risk factors in other vertebral new fractures after percutaneous vertebroplasty (PVP) in the patients with osteoporotic vertebral compression fractures (OVCF).Methods The pa-tients with OVCF receiving the PVP treatment in Dianjiang County People's Hospital from May 2021 to May 2022 were selected as the study subjects and their clinical data were collected.They were divided into the re-fracture group and the non-refracture group according to whether or not other vertebral developing the new fracture within postoperative one year.The data in the two groups conducted the univariate screening and mul-tivariate binary logistic regression analysis to investigate the influencing degree of different risk factors on new fracture in other vertebrae.The receiver operating characteristic (ROC) curves for the main influencing fac-tors were drawn to make the related predictive models.Results The multivariate logistic regression analysis revealed that the preoperative bone density absolute value (OR=3.693,P<0.05),bone cement type (OR=3.646,P<0.05),postoperative regular anti-osteoporosis treatment (OR=4.163,P<0.05),postoperative co-ronal Cobb angle (OR=1.017,P=0.17),number of segments during the initial surgery (OR=1.578,P<0.05) and the score of fracture degree (OR=2.002,P<0.05) were the influencing factors for the new frac-ture in other vertebrae.The ROC curve indicated that when preoperative bone density absolute value was<3.85,the risk of new fracture occurrence was up to 77.7%.Conclusion Various risk factors influence the in-cidence rate of new fracture in the other vertebrae in different degrees,the influence of preoperative bone den-sity absolute value has the greatest impact on it,so the individualized preventive measures should be developed for the patients after surgery.
8.Exploration of the Acupoint Selection Rules of Acupuncture and Moxibustion in the Treatment of Obesity Complicated with Type 2 Diabetes Mellitus Based on R language
Chen-Yang WANG ; Xiao-Xue YANG ; Shu-Fang CHU ; Jun-Yang GAO ; Qing-Lin LI ; Yue SHEN ; Jin-Yuan FANG ; Xiao-Wan XIONG ; Min PI
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(9):2381-2389
Objective To investigate the acupoint selection rules of obesity complicated with type 2 diabetes mellitus(T2DM)through R language data mining technology.Methods CNKI,Wanfang,VIP,CBM,PubMed,Embase,Cochrane Library,web of science and other major databases were searched by computer.From the establishment of the database to January 2024,the clinical research literature on acupuncture and moxibustion for the treatment of obesity with T2DM was included.Microsoft Excel 2021 was used to establish a database of acupoint prescriptions.R 4.3.2 and Rstudio software were used to analyze the frequency,meridian tropism,specific acupoints,correlation analysis,association rules and cluster analysis of acupoints.Results A total of 81 articles were included,and 117 prescriptions were extracted.It involves 82 acupoints,and the total frequency of acupoint usage is 1 072 times.The top five acupoints with the highest frequency were Zusanli(ST36),Zhongwan(RN12),Weiwanxiashu(EX-B3),Pishu(BL20),Tianshu(ST25).The meridian selection is mainly based on the stomach meridian of foot yangming,ren meridian,foot taiyang bladder meridian and foot taiyin spleen meridian.The five-shu points are the specific points with the highest frequency of use.Correlation analysis showed that there were three groups of strongly related acupoint groups.The core acupoints were obtained by association rule analysis.Cluster analysis and machine voting were performed on acupoints with frequency ≥ 10 by function,and a total of four cluster acupoint groups were obtained.Conclusion Through R language data analysis,the principle of acupoint selection for acupuncture and moxibustion in the treatment of obesity complicated with T2DM is mainly based on abdominal local acupoints,combined with visceral syndrome differentiation and empirical point selection,which provides effective treatment ideas for acupuncture and moxibustion in the treatment of obesity complicated with T2DM.
9.Clinical Study of Tongfengke Granules Combined with External Treatment of TCM in the Treatment of Patients with Acute Gouty Arthritis
Lin YANG ; Guifang PI ; Zeqi MU ; Peng XIANG ; Qin WU ; Rui FANG ; Dan LIU
Chinese Journal of Information on Traditional Chinese Medicine 2024;31(9):152-158
Objective To observe the clinical efficacy of Tongfengke Granules combined with external treatment of TCM in acute gouty arthritis(AGA)with damp-heat accumulation type.Methods A total of 96 patients with AGA were divided into the experimental group and the control group according to random number table method,with 48 patients in each group.The control group received meloxicam treatment.On this basis,the experimental group was treated with Tongfengke Granules(1 bag at a time,three times a day,orally)combined with external therapy of TCM(once a day),and mobile continuing care.The treatment for both groups lasted for 2 weeks.The clinical efficacy of both groups was observed.Before and after the treatment,pain visual analogue scale(VAS),TCM syndrome scores,major symptom scores,and levels of serum uric acid(UA),interleukin-6(IL-6),erythrocyte sedimentation rate(ESR),C-reactive protein(CRP),platelet/lymphocyte ratio(PLR),as well as engagement in self-care ability scale(ESCA),general self-efficacy scale(GSES),negative psychological condition[self-rating depression scale(SDS),self-rating anxiety scale(SAS)]were measured.The adverse reactions in both groups were monitored.Results Totally 45 and 47 patients in the experimental group and control group were finally included respectively in the analysis.The total effective rate of the experimental group was 75.6%(34/45),while that of the control group was 63.8%(30/47),with statistical significance(P<0.05).Compared with before treatment,the VAS score and TCM syndrome score in the experimental group decreased significantly(P<0.05);after treatment,the VAS score and TCM syndrome score of the experimental group were lower than those of the control group(P<0.05).Compared with before treatment,the joint pain,joint tenderness,joint swelling,and joint mobility limitation scores in both groups were significantly decreased after treatment(P<0.05,P<0.01);after treatment,the scores of joint pain,joint tenderness,and joint swelling in the experimental group were lower than those in the control group(P<0.01).Compared with before treatment,the levels of UA,ESR,CRP and PLR in both groups decreased significantly after treatment(P<0.01);after treatment,the levels of UA,ESR,CRP and PLR in the experimental group were lower than those in the control group(P<0.05,P<0.01).Compared with before treatment,the experimental group showed significant improvement in ESCA,GSES and SAS after treatment(P<0.05,P<0.01),while the control group showed significant improvement in ESCA(P<0.01);after treatment,the ESCA and GSES of the experimental group were better than those of the control group(P<0.05,P<0.01).There was no statistical significance in safety indicators and incidence of adverse reactions between the two groups(P>0.05).Conclusion Tongfengke Granules combined with external treatment of TCM can significantly improve the clinical efficacy of AGA,reduces UA levels,significantly improves inflammatory response,and has anti-inflammatory,anti-inflammatory,and analgesic effects.
10.Real-time SERS monitoring anticancer drug release along with SERS/MR imaging for pH-sensitive chemo-phototherapy.
Xueqin HUANG ; Bingbing SHENG ; Hemi TIAN ; Qiuxia CHEN ; Yingqi YANG ; Brian BUI ; Jiang PI ; Huaihong CAI ; Shanze CHEN ; Jianglin ZHANG ; Wei CHEN ; Haibo ZHOU ; Pinghua SUN
Acta Pharmaceutica Sinica B 2023;13(3):1303-1317
In situ and real-time monitoring of responsive drug release is critical for the assessment of pharmacodynamics in chemotherapy. In this study, a novel pH-responsive nanosystem is proposed for real-time monitoring of drug release and chemo-phototherapy by surface-enhanced Raman spectroscopy (SERS). The Fe3O4@Au@Ag nanoparticles (NPs) deposited graphene oxide (GO) nanocomposites with a high SERS activity and stability are synthesized and labeled with a Raman reporter 4-mercaptophenylboronic acid (4-MPBA) to form SERS probes (GO-Fe3O4@Au@Ag-MPBA). Furthermore, doxorubicin (DOX) is attached to SERS probes through a pH-responsive linker boronic ester (GO-Fe3O4@Au@Ag-MPBA-DOX), accompanying the 4-MPBA signal change in SERS. After the entry into tumor, the breakage of boronic ester in the acidic environment gives rise to the release of DOX and the recovery of 4-MPBA SERS signal. Thus, the DOX dynamic release can be monitored by the real-time changes of 4-MPBA SERS spectra. Additionally, the strong T2 magnetic resonance (MR) signal and NIR photothermal transduction efficiency of the nanocomposites make it available for MR imaging and photothermal therapy (PTT). Altogether, this GO-Fe3O4@Au@Ag-MPBA-DOX can simultaneously fulfill the synergistic combination of cancer cell targeting, pH-sensitive drug release, SERS-traceable detection and MR imaging, endowing it great potential for SERS/MR imaging-guided efficient chemo-phototherapy on cancer treatment.


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