1.Treatment Principles and Paradigm of Diabetic Microvascular Complications Responding Specifically to Traditional Chinese Medicine
Anzhu WANG ; Xing HANG ; Lili ZHANG ; Xiaorong ZHU ; Dantao PENG ; Ying FAN ; Min ZHANG ; Wenliang LYU ; Guoliang ZHANG ; Xiai WU ; Jia MI ; Jiaxing TIAN ; Wei ZHANG ; Han WANG ; Yuan XU ; .LI PINGPING ; Zhenyu WANG ; Ying ZHANG ; Dongmei SUN ; Yi HE ; Mei MO ; Xiaoxiao ZHANG ; Linhua ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(5):272-279
To explore the advantages of traditional Chinese medicine (TCM) and integrative TCM-Western medicine approaches in the treatment of diabetic microvascular complications (DMC), refine key pathophysiological insights and treatment principles, and promote academic innovation and strategic research planning in the prevention and treatment of DMC. The 38th session of the Expert Salon on Diseases Responding Specifically to Traditional Chinese Medicine, hosted by the China Association of Chinese Medicine, was held in Beijing, 2024. Experts in TCM, Western medicine, and interdisciplinary fields convened to conduct a systematic discussion on the pathogenesis, diagnostic and treatment challenges, and mechanism research related to DMC, ultimately forming a consensus on key directions. Four major research recommendations were proposed. The first is addressing clinical bottlenecks in the prevention and control of DMC by optimizing TCM-based evidence evaluation systems. The second is refining TCM core pathogenesis across DMC stages and establishing corresponding "disease-pattern-time" framework. The third is innovating mechanism research strategies to facilitate a shift from holistic regulation to targeted intervention in TCM. The fourth is advancing interdisciplinary collaboration to enhance the role of TCM in new drug development, research prioritization, and guideline formulation. TCM and integrative approaches offer distinct advantages in managing DMC. With a focus on the diseases responding specifically to TCM, strengthening evidence-based support and mechanism interpretation and promoting the integration of clinical care and research innovation will provide strong momentum for the modernization of TCM and the advancement of national health strategies.
2.Color Space Method Combined with Chemometrics to Determine Processing Degree of Angelicae Sinensis Radix Carbonisata
Liuying QIN ; Yao HUANG ; Lifan GAN ; Yuanjun LIU ; Congyou DENG ; Dongmei SUN ; Lijin LIANG ; Lin ZHOU
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(9):201-210
ObjectiveTo study the changing law of appearance color and physicochemical properties of Angelicae Sinensis Radix Carbonisata(ASRC) during the processing by color space method combined with statistical analysis, so as to provide reference for determining the processing endpoint and evaluating the quality of the decoction pieces. MethodsTaking processing time(4, 8, 12, 16 min) and temperature(180, 200, 220, 240 ℃) as factors, ASRC decoction pieces with different processing degrees were prepared in a completely randomized design. Then, the brightness value(L*), red-green value(a*), yellow-blue value(b*), and total chromaticity value (E*ab) of the decoction pieces were determined by spectrophotometer, the color difference value(ΔE) was calculated, and the data of colorimetric values were analyzed by discriminant analysis. At the same time, the pH, charcoal adsorption, and contents of tannins, 5-hydroxymethylfurfural(5-HMF), tryptophan, chlorogenic acid, ferulic acid, senkyunolide I, senkyunolide H and ligustilide of ASRC with different processing degrees were determined by pH meter, ultraviolet and visible spectrophotometry and ultra-high performance liquid chromatography(UPLC). Principal component analysis(PCA) was used to analyze the data of physicochemical indexes, after determining the processing technology of ASRC, the canonical discriminant function was established to distinguish the decoction pieces with different processing degrees, and leave-one-out cross validation was conducted. Finally, Pearson correlation analysis was used to explore the correlation between various physicochemical indexes and chromaticity values. ResultsWith the prolongation of the processing time, L*, a*, b* and E*ab all showed a decreasing trend, and the established discriminant model based on color parameters was able to distinguish ASRC with different processing degrees. The pH showed an increasing trend with the prolongation of processing time, and the charcoal adsorption, and the contents of tannins, 5-HMF, and tryptophan all showed an increasing and then decreasing trend. Among them, the charcoal adsorption, contents of tannin and 5-HMF reached their maximum values successively after processing for 8-12 min. While the contents of chlorogenic acid, ferulic acid, senkyunolide I, senkyunolide H and ligustilide decreased with the increase of processing time, with a decrease of 60%-80% at 8 min of processing. Therefore, the optimal processing time should be determined to be 8-12 min. PCA could clearly distinguish ASRC with different processing degrees, while temperature had no significant effect on the processing degree. The 12 batches of process validation results(10 min, 180-240 ℃) showed that except for 3 batches identified as class Ⅱ light charcoal, all other batches were identified as class Ⅲ standard charcoal, and the chromaticity values of each batch of ASRC were within the reference range of class Ⅱ-Ⅲ sample chromaticity values. The correlation analysis showed that the chromaticity values were negatively correlated with pH and charcoal adsorption, and positively correlated with contents of tryptophan, chlorogenic acid, ferulic acid, senkyunolide I, senkyunolide H, and ligustilide. And both pH and charcoal adsorption were negatively correlated with the contents of the above components, but the charcoal adsorption was positively correlated with the content of 5-HMF. ConclusionThe chromaticity values and the contents of various physicochemical indicators of ASRC undergo significant changes with the prolongation of processing time, and there is a general correlation between chromaticity values and various physicochemical indicators. Based on the changes in color and physicochemical indicators, the optimal processing time for ASRC is determined to be 8-12 min. This study reveals the dynamic changes of the relevant indexes in the processing of ASRC, which can provide a reference for the discrimination of the processing degree and the quantitative study of the processing endpoint.
3.Characteristic ion Identification of Different Original Haliotidis Concha and Its Counterfeits
Xiaojie LIANG ; Guowei LI ; Lin ZHOU ; Qiping HU ; Muxiang LUO ; Jiehao TANG ; Xiangdong CHEN ; Liye PAN ; Dongmei SUN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(11):263-269
ObjectiveTo establish a method for the identification of Haliotidis Concha and its counterfeits, and to improve its quality evaluation method. MethodsA total of 17 batches of Haliotis discus hannai, 4 batches of H. ruber, 3 batches of H. laevigata, 3 batches of H. ovina, 3 batches of H. diversicolor, 3 batches of H. asinina, 3 batches of H. iris were collected. Ultra-high performance liquid chromatography-quadrupole/electrostatic field orbitrap high-resolution mass spectrometry(UPLC-Q-Exactive-Orbitrap-MS/MS) was used to analyze the hydrolysates of different original Haliotidis Concha and its counterfeits, and the potential characteristic ions of each species were screened by Venn diagram. UPLC-triple quadrupole tandem mass spectrometry(UPLC-QqQ-MS/MS) was used to validate the characteristic ions, and the specific detection method of the characteristic ions was established. ResultsA total of 1 182, 167, 47, 89, 104, 203, 424 potential characteristic ions were screened from H. discus hannai, H. ruber, H. laevigata, H. ovina, H. diversicolor, H. asinina and H. iris, respectively. And 9 characteristic ions were selected. The precision, stability and repeatability of the 9 characteristic ions in the established identification method met the requirements. Different original Haliotidis Concha and its counterfeits could detect their own characteristic ions, including m/z 631.83-886.48(double charge) and m/z 631.83-443.74(double charge) of H. discus hannai, m/z 699.28-232.11(double charge) and m/z 699.28-544.27(double charge) of H. ruber, m/z 535.76-752.37(double charge) and m/z 535.76-548.28(double charge) of H. laevigata, m/z 708.35-442.28(double charge) and m/z 708.35-215.14(double charge) of H. ovina, m/z 561.33-614.86(triple charge), m/z 561.33-468.28(triple charge), m/z 608.29-618.32(double charge) and m/z 608.29-390.21(double charge) of H. diversicolor, m/z 769.85-274.10(double charge), m/z 769.85-532.75(double charge), m/z 827.43-646.36(single charge), m/z 827.43-257.12(single charge) of H. asinina, and m/z 468.24-576.29(double charge) and m/z 468.24-505.26(double charge) of H. iris. ConclusionIn this study, a total of 9 characteristic ions are screened from 6 kinds of original Haliotidis Concha and its counterfeits, and a specific identification method is established, which is helpful to solve the limitations of the existing quality evaluation methods of Haliotidis Concha, and provide a basis for the production, circulation and medication quality.
4.Characteristic ion Identification of Different Original Haliotidis Concha and Its Counterfeits
Xiaojie LIANG ; Guowei LI ; Lin ZHOU ; Qiping HU ; Muxiang LUO ; Jiehao TANG ; Xiangdong CHEN ; Liye PAN ; Dongmei SUN
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(11):263-269
ObjectiveTo establish a method for the identification of Haliotidis Concha and its counterfeits, and to improve its quality evaluation method. MethodsA total of 17 batches of Haliotis discus hannai, 4 batches of H. ruber, 3 batches of H. laevigata, 3 batches of H. ovina, 3 batches of H. diversicolor, 3 batches of H. asinina, 3 batches of H. iris were collected. Ultra-high performance liquid chromatography-quadrupole/electrostatic field orbitrap high-resolution mass spectrometry(UPLC-Q-Exactive-Orbitrap-MS/MS) was used to analyze the hydrolysates of different original Haliotidis Concha and its counterfeits, and the potential characteristic ions of each species were screened by Venn diagram. UPLC-triple quadrupole tandem mass spectrometry(UPLC-QqQ-MS/MS) was used to validate the characteristic ions, and the specific detection method of the characteristic ions was established. ResultsA total of 1 182, 167, 47, 89, 104, 203, 424 potential characteristic ions were screened from H. discus hannai, H. ruber, H. laevigata, H. ovina, H. diversicolor, H. asinina and H. iris, respectively. And 9 characteristic ions were selected. The precision, stability and repeatability of the 9 characteristic ions in the established identification method met the requirements. Different original Haliotidis Concha and its counterfeits could detect their own characteristic ions, including m/z 631.83-886.48(double charge) and m/z 631.83-443.74(double charge) of H. discus hannai, m/z 699.28-232.11(double charge) and m/z 699.28-544.27(double charge) of H. ruber, m/z 535.76-752.37(double charge) and m/z 535.76-548.28(double charge) of H. laevigata, m/z 708.35-442.28(double charge) and m/z 708.35-215.14(double charge) of H. ovina, m/z 561.33-614.86(triple charge), m/z 561.33-468.28(triple charge), m/z 608.29-618.32(double charge) and m/z 608.29-390.21(double charge) of H. diversicolor, m/z 769.85-274.10(double charge), m/z 769.85-532.75(double charge), m/z 827.43-646.36(single charge), m/z 827.43-257.12(single charge) of H. asinina, and m/z 468.24-576.29(double charge) and m/z 468.24-505.26(double charge) of H. iris. ConclusionIn this study, a total of 9 characteristic ions are screened from 6 kinds of original Haliotidis Concha and its counterfeits, and a specific identification method is established, which is helpful to solve the limitations of the existing quality evaluation methods of Haliotidis Concha, and provide a basis for the production, circulation and medication quality.
5.Exploration on the Effect of Acupuncture at"Weizhong"on Angiogenesis in Rats with Chronic Blunt Lumbar Muscle Injury Based on PI3K/AKT/HIF-1α Pathway
Dongmei WANG ; Yifan SUN ; Xiulian ZHENG ; Pingping ZHENG ; Jianping LIN ; Qun CHEN ; Shaoqing CHEN
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(2):85-90
Objective To observe the effects of acupuncture at"Weizhong"on angiogenesis of chronic blunt injury of lumbar muscle in rats;To explore the possible mechanism of acupuncture in the treatment of chronic lumbar skeletal muscle injury based on PI3K/AKT/HIF-1α signaling pathway.Methods A total of 24 SD male rats were established chronic blunt injury of lumbar muscle model,and were randomly divided into model group,Weizhong group and non-acupoint group,with 8 rats in each group.Another 8 rats of the same age were selected as the blank group.In the Weizhong group,acupuncture intervention was performed on both sides of"Weizhong",while in the non-acupoint group,acupuncture intervention was performed on both sides of"Weizhong"inwardly by 0.5 cm,once a day for 20 minutes each time,for 2 consecutive weeks.The blank group and model group adopted the same grasping fixed posture without any intervention.The body mass and limb grip strength of each group were measured,the lumbar muscle tissue morphology was observed by HE staining,the content of NO in lumbar muscle tissue was detected by ELISA,the expression of VEGF in lumbar muscle tissue was observed by immunofluorescence,the expression of PI3K/AKT/HIF-1α pathway protein in lumbar muscle tissue was detected by Western blot.Results Compared with the blank group,body mass and limb grip strength of model group decreased(P<0.01),cell structure of waist skeletal muscle was loosely arranged,red blood cells and nuclear exudation were observed,NO content and positive expression of VEGF in lumbar muscle tissue decreased(P<0.01),and the protein expressions of p-PI3K/PI3K,p-AKT/AKT and HIF-1α in lumbar muscle tissue were down-regulated(P<0.01).Compared with the model group,the body mass and limb grip strength of rats in Weizhong group increased(P<0.05,P<0.01),the arrangement of skeletal muscle cells in the waist was more compact and orderly,and the content of NO and positive expression of VEGF in lumbar muscle tissue were increased(P<0.01),the protein expressions of p-PI3K/PI3K,p-AKT/AKT and HIF-1α in lumbar muscle tissue were up-regulated(P<0.01).The effects of Weizhong group was better than those in non-acupoint group(P<0.05,P<0.01).Conclusion Acupuncture at"Weizhong"can effectively promote the repair of chronic blunt injury of lumbar muscle in rats.The mechanism may be related to activating the PI3K/AKT/HIF-1α pathway to regulate angiogenesis and improve vascular injury.
6.Jia Liqun's Experience in Treating Postoperative Lower Limb Lymphoedema of Gynaecological Malignant Tumours
Rong HUANG ; Jia LU ; Jianrong SUN ; Dongmei CHEN ; Yanni LOU ; Liqun JIA
Chinese Journal of Information on Traditional Chinese Medicine 2025;32(2):175-178
Postoperative lower limb lymphedema following gynecological malignancies can be categorized under TCM concepts of"edema"and"meridian obstruction".Professor Jia Liqun believes that the underlying deficiency lies in yang and blood deficiency,while the excess is characterized by dampness and blood stasis obstructing the meridians.Consequently,the treatment strategies include warming yang and nourishing blood to unblock the meridians,dispelling dampness and promoting diuresis to unblock the meridians,and transforming stasis and promoting diuresis to unblock the meridians.Clinical practice requires dynamic syndrome differentiation and treatment according to the disease progression.Additionally,Professor Jia often employs the external application of Wenjing Tongluo Powder to directly target the affected area,combining internal and external treatments to enhance the effect of unblocking the meridians and reducing swelling.
7.Expert consensus on intraoperative repositioning for patients with spine fracture and dislocation (version 2025)
Dongmei BIAN ; Ke SUN ; Ningbo CHEN ; Caixia BAI ; Miao WANG ; Yafeng QIAO ; Fei WANG ; Hong WANG ; Feng TIAN ; Mei YAN ; Meng BAI ; Linjuan ZHANG ; Liyan ZHAO ; Yaqing CUI ; Xue JIANG ; Leling FENG ; Ning NING ; Junqin DING ; Lan WEI ; Yonghua ZHAI ; Yu ZENG ; Zengmei ZHANG ; Jiqun HE ; Fenggui BIE ; Hong CHEN ; Zengyan WANG ; Li LI ; Li ZHANG ; Yaying ZHOU ; Bing SHAO ; Ying WANG ; Caixia XIE ; Yanfeng YAO ; Jingjing AN ; Wen SHI ; Xiongtao LIU ; Xiaoyan AN ; Ning NAN ; Lan LI ; Xiaohui GOU ; Qiaomei LI ; Xiuting WU ; Yuqin ZHANG ; Jing LIU ; Fusen XIANG ; Xu XU ; Na MEI ; Jiao ZHOU ; Shan FAN ; Qian WANG ; Shuixia LI
Chinese Journal of Trauma 2025;41(2):138-147
Spine fracture and dislocation are common traumatic spinal conditions that often require surgical intervention due to compromised spinal stability. Surgical approaches include anterior, posterior, and combined anterior-posterior spinal procedures. According to the specific surgical requirements, patients may be placed in the prone position or repositioned between prone and supine positions during surgery. Intraoperative repositioning has become an essential step in patient positioning. However, during repositioning, patients with spinal fracture and dislocation are at increased risk for complications such as hemodynamic instability, nerve injury, and pressure injuries to the skin and soft tissue. Notably, due to the instability of the spinal cord, even minor manipulations can further exacerbate the damage, potentially leading to severe outcomes like paraplegia. Although the current clinical guidelines provide instructive recommendations for standard position, there remains no specific protocols for intraoperative repositioning in patients with spine fracture and dislocation. With a concern for the lack of clinical studies on positioning techniques, risk prevention, and operational norms for special patients, no applicable guidelines or standards are available. A consensus was required to provide clinical reference, meet the requirements of surgical treatment, and minimize the safety risks of patients caused by improper placement of positions. Professional Committee of Operating Room Nursing of Shaanxi Nursing Association organized experts in nursing management and operating room nursing from major hospitals across China to formulate Expert consensus on intraoperative repositioning for patients with spinal fracture and dislocation ( version 2025). The consensus provides 11 recommendations covering pre-repositioning preparation, intraoperative maneuvers, and post-repositioning observation, aiming to provide references for clinical standardization of the intraoperative repositioning process and protection of patients′ safety.
8.Clinical characteristics of juvenile dermatomyositis in anti-nuclear matrix protein 2 antibody-positive patients and risk factors for severity: a national multicenter retrospective study
Huiyuan YANG ; Wanzhen GUAN ; Ling2 YANG ; Haimei LIU ; Xiaoqing3 LI ; Haiguo YU ; Meiping LU ; Jun YANG ; Xiaohui LIU ; Hongxia ZHANG ; Wei ZHANG ; Jihong XIAO ; Xiaozhong LI ; Guomin LI ; Hong CHANG ; Sheng HAO ; Yue DU ; Daliang XU ; Ling WU ; Wenjie ZHENG ; Li LIU ; Xinhui JIANG ; Shaohui ZHU ; Dongmei ZHAO ; Xuemei TANG ; Li SUN
Chinese Journal of Pediatrics 2025;63(12):1299-1305
Objective:To investigate the clinical characteristics and independent risk factors of severe disease in patients with anti-nuclear matrix protein (NXP) 2 antibody-positive juvenile dermatomyositis (JDM).Methods:A retrospective cohort study was conducted, including 219 anti-NXP2 antibody-positive JDM patients admitted to 23 children′s hospitals across China from July 2011 to July 2023. Patients were classified into severe and non-severe groups based on classification criteria for severe dermatomyositis. Demographic characteristics, clinical manifestations, and laboratory parameters were compared between the 2 groups using independent sample t-test, Mann-Whitney U test, or χ2 test. Univariate and multivariate Logistic regression analyses were performed to identify risk factors for severe disease. The receiver operating characteristic curve was employed to calculate optimal cut-off values. Results:Among the 219 patients, 108 were male and 111 were female, with an age at onset of 6.3 (3.5, 9.4) years. The severe group comprised 69 patients, and the non-severe group 150 patients. The severe group had significantly higher rates of fever, heliotrope rash, subcutaneous edema, periorbital edema, anti-Ro52 antibody positivity, as well as elevated levels of ferritin-to-albumin ratio (FAR), creatine kinase (CK), aspartate aminotransferase (AST), and lactate dehydrogenase (LDH) (all P<0.05). Multivariate analysis identified anti-Ro52 antibody positivity ( OR=13.26, 95% CI 1.37-128.29) and elevated FAR ( OR=1.90, 95% CI 1.09-2.31) as independent risk factors for severe anti-NXP2 antibody-positive JDM (both P<0.05). Receiver operating characteristic curve analysis revealed that a FAR cutoff value of 6.82 predicted severe disease with an area under the curve of 0.87 (95% CI 0.81-0.94, P<0.001), sensitivity of 0.85, and specificity of 0.70. All patients received glucocorticoid therapy, and the severe group received higher proportions of steroid pulse therapy, cyclophosphamide, mycophenolate mofetil, intravenous immunoglobulin, biologics, and adjuvant treatments compared to the non-severe group (all P<0.05). In terms of outcomes, 2 patients (2.9%) in the severe group died (due to neurological involvement and intestinal perforation, respectively), while the remaining patients achieved complete clinical response or remission. All patients in the non-severe group achieved remission. Conclusions:The primary clinical features of anti-NXP2 antibody-positive JDM included fever, heliotrope rash, subcutaneous edema, periorbital edema, anti-Ro52 antibody positivity, and elevated levels of CK, AST, LDH, and FAR. Furthermore, anti-Ro52 antibody positivity and a FAR>6.82 were identified as independent risk factors.
9.Correlation between serum glycoprotein non-metastatic melanoma protein B levels and disease severity and prognosis in patients with acute ischemic stroke
Yu GUO ; Weiguan CHEN ; Sanlian ZHOU ; Liqiao TANG ; Wangyan SUN ; Dongmei ZHANG ; Hongjian LU
Journal of Capital Medical University 2025;46(4):702-709
Objective This study mainly focuses on the relationship between the serum glycoprotein non-metastatic melanoma protein B(GPNMB)concentration and the degree of neurological damage and prognosis in patients with acute ischemic stroke(AIS),and screens potential biomarkers to provide a reference for clinical diagnosis and treatment.Methods A total of 105 AIS patients hospitalized in the Department of Neurology of the Hospital 2 of Nantong University from June 2023 to March 2024 were selected as the sample group.In this study,the patients were divided into mild group(n=42)and moderate to severe group(n=63)according to the National Institutes of Health Strobe Scale(NIHSS)score within 24 hours of admission.The Modified Rankin Scale(mRS)was used to evaluate the functional recovery 3 months after discharge.The samples were subdivided into good prognosis group(n=34)and poor prognosis group(n=71).The serum GPNMB protein level was detected by ELISA,and the correlation between serum GPNMB protein level and NIHSS and mRS scores was analyzed.The binary Logistic regression model was used to evaluate the predictive value and prognostic evaluation value of serum GPNMB protein level for AIS neurological function damage.Results The serum GPNMB protein concentration in patients with moderate to severe neurological impairment and poor prognosis was significantly lower than that in patients with mild and good prognosis(P<0.05).The serum GPNMB protein level was significantly negatively correlated with the NIHSS score(r=-0.196,P<0.05)and the mRS score(r=-0.334,P<0.05).Multivariate regression analysis showed that GPNMB was still a key independent risk factor for AIS(P<0.05).The evaluation results obtained based on the receiver operating characteristic curve(ROC)showed that the serum GPNMB protein level had diagnostic value in predicting neurological impairment and poor prognosis(sensitivity reached 55.6%,specificity was 81.8%,and the overall accuracy was 63.81%,P<0.05).Conclusion There is a significant positive correlation between the decrease in serum GPNMB protein concentration and the degree of neurological damage in AIS patients,and it is likely to become an important biological indicator for measuring the severity of the disease and long-term prognosis.
10.Icariin pretreatment enhances effect of human periodontal stem cells on M1-type macrophages
Ting YU ; Dongmei LYU ; Hao DENG ; Tao SUN ; Qian CHENG
Chinese Journal of Tissue Engineering Research 2025;29(7):1328-1335
BACKGROUND:Human periodontal stem cells have a certain inhibitory effect on the pro-inflammatory function of M1-type macrophages,and it is not clear whether icariin,which has anti-inflammatory and other pharmacological activities,can enhance the inhibitory effect of human periodontal stem cells on M1-type macrophages. OBJECTIVE:To investigate the effect of icariin on M1 macrophages after pretreatment of human periodontal stem cells. METHODS:Primary human periodontal stem cells were isolated,cultured and characterized.THP-1 was induced and M1-type macrophages were identified by immunofluorescence staining and PCR.Human periodontal stem cells were cultured with α-MEM complete medium containing concentrations of 10-7,10-6,10-5,and 10-4 mol/L icariin,and the cytotoxicity of Icariin on human periodontal stem cells was detected by the CCK-8 assay at 1,3,5,and 7 days,respectively.α-MEM complete medium,untreated α-MEM conditioned medium for human periodontal stem cells and α-MEM conditioned medium for human periodontal stem cells pretreated with icariin for 24 hours were conditioned with RPMI-1640 complete medium in a 1:1 ratio for M1-type macrophages in the control,untreated,and pretreated groups,and 24 hours later,the mRNA expression of inflammatory factors in M1 macrophages was detected by RT-PCR.The protein expression of inflammatory factors in M1 macrophages was detected by ELISA.The expression of surface markers and nuclear factor-κB pathway-related proteins in M1/M2 macrophages was detected by western blot assay. RESULTS AND CONCLUSION:(1)CCK-8 assay results showed that 10-7,10-6,10-5,10-4 mol/L icariin was not cytotoxic to the human periodontal stem cells,and from day 5 onwards,all the concentrations increased the cell viability,and promoted the cell proliferation.10-4 mol/L icariin was selected for follow-up experiment.(2)RT-PCR and ELISA results showed that compared with the control group,the untreated group and the pretreated group both decreased the expression and secretion of interleukin-1β,interleukin-6,and tumor necrosis factor-α of M1-type macrophages(P<0.05),and the pretreated group was lower than the untreated group(P<0.05).(3)Western blot assay results showed that compared with the untreated group,the expression of CD86 was significantly lower in the pretreated group(P<0.05);compared with the control group,the expression of CD206,a surface marker of M2-type macrophages,was elevated in both the untreated and pretreated groups(P<0.01),and it was significantly higher in the pretreated group than in the untreated group(P<0.01).In M1-type macrophages after 24 hours of conditioned culture,compared with the control group,the expression of nuclear factor-κB/P65 was decreased in the untreated group and the pretreated group(P<0.01),and the expression of p-IκBα was decreased only in the pretreated group(P<0.01);the expression of both nuclear factor-κB/P65 and p-IκBα was significantly reduced in the pretreated group compared with the untreated group(P<0.05),while the difference of IκBα in the three groups was not statistically significant.(4)These results indicated that icariin enhanced the inhibitory effect of human periodontal stem cells on M1-type macrophages,and this effect may be related to the inhibition of the nuclear factor-κB signaling pathway of macrophages.

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