1.Effects and mechanism of paeoniflorin on oxidative stress of ulcerative colitis mice
Xin DAI ; Ying WANG ; Xinyue REN ; Dingxing FAN ; Xianzhe LI ; Jiaxuan FENG ; Shilei LOU ; Hui YAN ; Cong SUN
China Pharmacy 2025;36(4):427-433
OBJECTIVE To investigate the effects and potential mechanism of paeoniflorin on oxidative stress of ulcerative colitis (UC) mice based on adenosine monophosphate-activated protein kinase (AMPK)/nuclear factor-erythroid 2-related factor 2 (Nrf2) pathway. METHODS Male BALB/c mice were randomly divided into control group, model group, inhibitor group (AMPK inhibitor Compound C 20 mg/kg), paeoniflorin low-, medium- and high-dose groups (paeoniflorin 12.5, 25, 50 mg/kg), high- dose of paeoniflorin+inhibitor group (paeoniflorin 50 mg/kg+Compound C 20 mg/kg), with 8 mice in each group. Except for the control group, mice in all other groups were given 4% dextran sulfate sodium solution for 5 days to establish the UC model. Subsequently, mice in each drug group were given the corresponding drug solution intragastrically or intraperitoneally, once a day, for 7 consecutive days. The changes in body weight of mice were recorded during the experiment. Twenty-four hours after the last administration, colon length, malondialdehyde (MDA) content, and activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) in colon tissues were measured; histopathological morphology of colon tissues, tight junctions between intestinal epithelial cells, and histopathological scoring were all observed and evaluated; the mRNA expressions of AMPK and Nrf2, as well as the protein expressions of heme oxygenase-1(HO-1), occludin and claudin-1, were all determined in colon tissue. RESULTS Compared with model group, paeoniflorin groups exhibited recovery from pathological changes such as inflammatory cell infiltration and crypt damage in the colon tissue, as well as improved tight junction damage between intestinal epithelial cells. Additionally, significant increases or upregulations were observed in body weight, colon length, activities of SOD and GSH-Px, phosphorylation level of AMPK, and protein expression of Nrf2, HO-1, occludin, claudin-1, and mRNA expressions of AMPK and Nrf2; concurrently, MDA content and histopathological scores were significantly reduced (P< 0.05 or P<0.01). In contrast, the inhibitor group showed comparable (P>0.05) or worse (P<0.05 or P<0.01) indicators compared to the model group. Conversely, the addition of AMPK inhibitor could significantly reverse the improvement of high- dose paconiflorin (P<0.01). CONCLUSIONS Paeoniflorin can repair intestinal epithelial cell damage in mice, improve tight junctions between epithelial cells, upregulate the expression of related proteins, and promote the expression and secretion of antioxidant-promoting molecules, thereby ameliorating UC; its mechanism may be associated with activating AMPK/Nrf2 antioxidant pathway.
2.Clinical practice guidelines for intraoperative cell salvage in patients with malignant tumors
Changtai ZHU ; Ling LI ; Zhiqiang LI ; Xinjian WAN ; Shiyao CHEN ; Jian PAN ; Yi ZHANG ; Xiang REN ; Kun HAN ; Feng ZOU ; Aiqing WEN ; Ruiming RONG ; Rong XIA ; Baohua QIAN ; Xin MA
Chinese Journal of Blood Transfusion 2025;38(2):149-167
Intraoperative cell salvage (IOCS) has been widely applied as an important blood conservation measure in surgical operations. However, there is currently a lack of clinical practice guidelines for the implementation of IOCS in patients with malignant tumors. This report aims to provide clinicians with recommendations on the use of IOCS in patients with malignant tumors based on the review and assessment of the existed evidence. Data were derived from databases such as PubMed, Embase, the Cochrane Library and Wanfang. The guideline development team formulated recommendations based on the quality of evidence, balance of benefits and harms, patient preferences, and health economic assessments. This study constructed seven major clinical questions. The main conclusions of this guideline are as follows: 1) Compared with no perioperative allogeneic blood transfusion (NPABT), perioperative allogeneic blood transfusion (PABT) leads to a more unfavorable prognosis in cancer patients (Recommended); 2) Compared with the transfusion of allogeneic blood or no transfusion, IOCS does not lead to a more unfavorable prognosis in cancer patients (Recommended); 3) The implementation of IOCS in cancer patients is economically feasible (Recommended); 4) Leukocyte depletion filters (LDF) should be used when implementing IOCS in cancer patients (Strongly Recommended); 5) Irradiation treatment of autologous blood to be reinfused can be used when implementing IOCS in cancer patients (Recommended); 6) A careful assessment of the condition of cancer patients (meeting indications and excluding contraindications) should be conducted before implementing IOCS (Strongly Recommended); 7) Informed consent from cancer patients should be obtained when implementing IOCS, with a thorough pre-assessment of the patient's condition and the likelihood of blood loss, adherence to standardized internally audited management procedures, meeting corresponding conditions, and obtaining corresponding qualifications (Recommended). In brief, current evidence indicates that IOCS can be implemented for some malignant tumor patients who need allogeneic blood transfusion after physician full evaluation, and LDF or irradiation should be used during the implementation process.
3.A Randomized Controlled,Double-Blind Study on Huaban Jiedu Formulation (化斑解毒方) in the Treatment of Psoriasis Vulgaris with Blood-Heat Syndrome
Xuewen REN ; Yutong DENG ; Huishang FENG ; Bo HU ; Jianqing WANG ; Zhan CHEN ; Xiaodong LIU ; Xinhui YU ; Yuanwen LI
Journal of Traditional Chinese Medicine 2025;66(16):1679-1686
ObjectiveTo evaluate the clinical efficacy and safety of Huaban Jiedu Formulation (化斑解毒方, HJF) in treating psoriasis vulgaris with blood-heat syndrome. MethodsA randomized, double-blind, placebo-controlled study was conducted with 60 patients diagnosed with psoriasis vulgaris of blood-heat syndrome. Patients were randomly assigned to either a treatment group or a control group, with 30 cases in each. The treatment group received HJF granules orally, one dose a day, combined with topical Qingshi Zhiyang Ointment (青石止痒软膏), while the control group received placebo granules, one dose a day, combined with the same topical ointment. Both groups were topically treated twice daily of 28 days treatment cours. Psoriasis area and severity index (PASI), visual analogue scale for pruritus (VAS), traditional Chinese medicine (TCM) syndrome scores, dermatology life quality index (DLQI), and psoriasis life stress inventory (PLSI) were assessed before treatment and on day 14 and day 28. Response rates for PASI 50 (≥50% reduction) and PASI 75 (≥75% reduction), as well as overall clinical efficacy, were compared between groups. Serum levels of interleukin-6 (IL-6) and interleukin-17 (IL-17) were measured before and after 28 days of treatment. Adverse reactions during treatment were recorded. ResultsAfter 28 days of treatment, both groups showed significant reductions in PASI total score, lesion area score, erythema, scaling, and infiltration scores, pruritus VAS score, TCM syndrome score, DLQI, PLSI, and serum IL-6 and IL-17 levels (P<0.05). Compared to the control group, the treatment group had significantly greater improvements in PASI total score and erythema score, TCM syndrome score, serum IL-6 and IL-17 levels, and PASI 50 response rate after 28 days (P<0.05). Between-group comparisons of score differences before and after 28-day treatment revealed that the treatment group showed significantly better improvements in PASI total, lesion area score, erythema score, TCM syndrome score, DLQI, PLSI, and inflammatory markers (P<0.05 or P<0.01). The total effective rate on day 14 and day 28 was 40.00% (12/30) and 83.33% (25/30) in the treatment group, versus 6.90% (2/29) and 41.38% (12/29) in the control group, respectively. The clinical efficacy in the treatment group was significantly superior to that in the control group (P<0.05). Mild gastric discomfort occurred in 3 patients in the treatment group and 1 in the control group. ConclusionHJF can effectively improve skin lesions and TCM symptoms relieve pruritus, enhance quality of life, and reduce inflammatory markers IL-6 and IL-17, in patients with blood-heat syndrome of psoriasis vulgaris, with a good safety profile.
4.Immunotherapy for Lung Cancer
Pei-Yang LI ; Feng-Qi LI ; Xiao-Jun HOU ; Xue-Ren LI ; Xin MU ; Hui-Min LIU ; Shou-Chun PENG
Progress in Biochemistry and Biophysics 2025;52(8):1998-2017
Lung cancer is the most common malignant tumor worldwide, ranking first in both incidence and mortality rates. According to the latest statistics from the International Agency for Research on Cancer (IARC), approximately 2.5 million new cases and around 1.8 million deaths from lung cancer occurred in 2022, placing a tremendous burden on global healthcare systems. The high mortality rate of lung cancer is closely linked to its subtle early symptoms, which often lead to diagnosis at advanced stages. This not only complicates treatment but also results in substantial economic losses. Current treatment options for lung cancer include surgery, radiotherapy, chemotherapy, targeted drug therapy, and immunotherapy. Among these, immunotherapy has emerged as the most groundbreaking advancement in recent years, owing to its unique antitumor mechanisms and impressive clinical benefits. Unlike traditional therapies such as radiotherapy and chemotherapy, immunotherapy activates or enhances the patient’s immune system to recognize and eliminate tumor cells. It offers advantages such as more durable therapeutic effects and relatively fewer toxic side effects. The main approaches to lung cancer immunotherapy include immune checkpoint inhibitors, tumor-specific antigen-targeted therapies, adoptive cell therapies, cancer vaccines, and oncolytic virus therapies. Among these, immune checkpoint inhibitors and tumor-specific antigen-targeted therapies have received approval from the U.S. Food and Drug Administration (FDA) for clinical use in lung cancer, significantly improving outcomes for patients with advanced non-small cell lung cancer. Although other immunotherapy strategies are still in clinical trials, they show great potential in improving treatment precision and efficacy. This article systematically reviews the latest research progress in lung cancer immunotherapy, including the development of novel immune checkpoint molecules, optimization of treatment strategies, identification of predictive biomarkers, and findings from recent clinical trials. It also discusses the current challenges in the field and outlines future directions, such as the development of next-generation immunotherapeutic agents, exploration of more effective combination regimens, and the establishment of precise efficacy prediction systems. The aim is to provide a valuable reference for the continued advancement of lung cancer immunotherapy.
5.Evaluation of the Efficacy of Local Corticosteroid Injection in the Treatment of Idiopathic Granulomatous Mastitis: A Retrospective Cohort Study Based on Clinical Cases
Yanna ZHANG ; Li PENG ; Xinyu REN ; Feng MAO ; Qiang SUN ; Yidong ZHOU
Medical Journal of Peking Union Medical College Hospital 2025;16(5):1214-1220
To compare the clinical efficacy of intralesional corticosteroid injection combined with topical corticosteroids versus topical corticosteroids alone in patients with idiopathic granulomatous mastitis (IGM). Patients diagnosed with IGM and treated at the Breast Surgery Department of Peking Union Medical College Hospital between October 2016 and March 2018 were retrospectively analyzed. Based on treatment modalities, patients were divided into an injection group (receiving intralesional corticosteroid injections plus topical corticosteroids) and a control group (receiving topical corticosteroids alone). Clinical outcomes and recurrence rates were compared between the two groups. Seventy-eight patients meeting the inclusion and exclusion criteria were enrolled, with 51 in the injection group and 27 in the control group. The median age was 35 years (range: 22-45). The maximum lesion diameter was 8.7±2.9 cm in the injection group and 7.1±2.7 cm in the control group. Compared with the control group, the injection group showed a significantly shorter time to half remission(2.8±0.9 weeks Compared with topical corticosteroid monotherapy, the combina-tion of intralesional corticosteroid injection and topical corticosteroids provides faster symptom control and shorter treatment duration while maintaining high efficacy and low long-term recurrence rates, offering a more effective therapeutic option for IGM patients.
6.Construction of hepatocellular carcinoma prognosis risk model and prediction of immunotherapy efficacy
Junqing LI ; Liangliang REN ; Weiran LIN ; Yiting FENG ; Chaoying LI ; Ying JIANG
Chinese Journal of Immunology 2024;40(7):1422-1430
Objective:To construct a prognostic risk model for hepatocellular carcinoma(HCC),and elucidate the immune characteristics and immunotherapy response in patients with different prognostic stratification.Methods:RNA-seq data of TCGA-LIHC and ICGC(LIRI-JP),and gene microarray data of GSE14520 and GSE54236 in hepatocellular carcinoma,as well as clinical informa-tion of the corresponding samples were downloaded.First,screening of differentially expressed genes in tumor and non-tumor tissue samples from TCGA-LIHC,GSE14520 and GSE54236.For the common differential genes,univariate cox regression analysis was per-formed using TCGA-LIHC data to obtain HCC prognosis-related genes.Five genes were randomly selected as a panel,and the optimal prognostic marker panel was screened among 10 000 panels using Lasso-cox regression analysis combined with a five-fold cross-valida-tion method.TCGA-LIHC data were used as training set to construct the prognostic risk model,and ICGC data were used as validation set to test the model performance.Tumor immune dysfunction and exclusion(TIDE)algorithm and Immunophenotypic score(IPS)were used to predict immunotherapy efficacy in patients in different prognostic groups.Results:Overall survival was significantly lon-ger in low-risk group of HCC patients compared with high-risk group.Tumor proliferation rate,Treg and Th2 cell chemotaxis,stromal remodeling,and pro-tumor cytokines were significantly increased in high-risk patients,while NK cells,Th1 cells,effector cells and endothelial cells were significantly increased in low-risk patients.Immune checkpoint analysis showed that PDCD1,CTLA4 and CD276 were up-regulated in high-risk patients,while PDCD1LG2 was upregulated in low-risk patients.TIDE score and IPS results predicted that patients in low-risk group had better efficacy to immunotherapy.Conclusion:This study constructed a prognostic risk model containing three genes,DNASE1L3,RDH16 and DLGAP5,which can effectively predict the prognosis of HCC patients and assist in clinical decision making for individualized immunotherapy.
7.Application and prospect analysis of high-throughput TCR immune repertoire technology in AIDS
Yingke REN ; Jie LI ; Qianlei XU ; Qiang LI ; Lu WANG ; Feng SANG
Chinese Journal of Immunology 2024;40(7):1565-1568,封3
T cell receptors(TCR)immune repertoire is sum of all TCR in body,and diversity of TCR immune repertoire is closely related to HIV recognition and immune escape.High-throughput immune repertoire sequencing technology is able to detect and analyze all sequences of TCR immune repertoire,truly reflect genetic information of all TCR,and comprehensively reveal complexity and diversity of TCR immune repertoire.Analysis of changes in TCR immune group database of HIV patients through high-throughput sequencing technology can monitor their diagnosis and treatment,disease progression and prognosis,and can also contribute to vaccine development,latent reservoir clearance and clinical efficacy evaluation,so as to provide a theoretical basis for enriching prevention and treatment ideas and targets of HIV/AIDS.
8.Genetic diversity of Ixodes persulcatus in parts of Inner Mongolia
Meng-Yu CUI ; Si SU ; Li-Li XING ; Lan MU ; Rui-Juan GAO ; Qi-Qi GUO ; Hong REN ; Dong-Dong QI ; Jing-Feng YU
Chinese Journal of Zoonoses 2024;40(4):295-301
The aim of this study was to clarify the genetic diversity and population history of Ixodes persulcatus in some ar-eas of Inner Mongolia in order to provide accurate data for effective vector control programs and reveal the transmission mecha-nism.Samples were collected in 10 areas of Inner Mongolia during the active tick season(April 2021-July 2023)using the flag-dragging and manual sampling methods.The 16S rRNA and COI gene were sequenced to clarify genetic diversity of I.per-sulcatus.The positivity rates for the COI gene and 16S rRNA were 90.00%and 98.33%respectively.Overall,18 and 15 haplotypes were identified for the COI gene and 16S rRNA,respectively,with a total haplotype diversity>0.762 and total nucleotide diversity<0.005.The Tajima's values and Fu's Fs were negative for significance.A nucleotide mismatch map was shown as a single peak.The genetic differentiation index FST of the population indicates a small degree of genetic differ-entiation of the population,while analysis of molecular vari-ance indicates that the variation within populations was greater than between populations.Phylogenetic tree and haplotype network plots showed confounding distributions between hap-lotypes.I.persulcatus from the Hinggan League and Hulun-buir regions can adapt to environmental changes and possess abundant genetic diversity.Genetic differentiation is mainly concentrated within the population and no geographical isolation was observed.
9.A quantitative research on China's basic medical insurance policy text for Traditional Chinese Medicine from the perspective of policy instrument
Sheng-Hui SHI ; Mao YOU ; Rui-Feng LI ; Xue-Qing TIAN ; Ping REN ; Lan-Tao WU ; Qiu-Ying ZHENG
Chinese Journal of Health Policy 2024;17(4):16-22
Objective:To summarize and analyze the composition characteristics and problems of basic medical insurance policies for traditional Chinese medicine in various provinces of China,providing reference for optimizing and improving subsequent basic medical insurance policies for traditional Chinese medicine.Methods:Based on the perspective of policy instrument,combined with two dimensions of policy instrument types and policy development process,the content analysis method is used to quantitatively analyze the content of the basic medical insurance policies for traditional Chinese medicine released at the provincial level from 2011 to 2023.Results:The 93 included policy documents were coded and sorted,with a cumulative total of 487 codes.From the perspective of policy instrument dimensions,subcategories of policy instruments involve diverse themes,but there are differences in the level of attention paid to each policy tool.From the perspective of policy development process,each link also presents a discrete trend,indicating a dominant feature of policy planning and implementation.Conclusion:To improve the basic medical insurance policy system of traditional Chinese medicine in China,it is necessary to optimize the combination of policy instrument and construct a coordinated and balanced policy instrument framework;Overall planning of the development process of traditional Chinese medicine medical insurance policies,highlighting the unique advantages of traditional Chinese medicine;Emphasize policy synergy between dimensions and strengthen the implementation of traditional Chinese medicine medical insurance policies.
10.Gastrin-releasing peptide receptor targeted PET imaging of 68Ga-DOTA-PEG 4-BBN for prostate cancer
Jiaqi YUAN ; Yaxi LI ; Dujuan LIU ; Ran REN ; Menglu LI ; Ninghan FENG ; Jianming NI
Chinese Journal of Nuclear Medicine and Molecular Imaging 2024;44(5):303-308
Objective:To design and develop a molecular imaging probe of 68Ga-labeled bombesin (BBN) analogue, 68Ga-1, 4, 7, 10-tetraazacyclododecane-1, 4, 7, 10-tetraacetic acid (DOTA)-polyethylene glycol (PEG) 4-BBN, and investigate its potential to target prostate cancer with high expression of gastrin-releasing peptide receptor (GRPR) while minimizing uptake in pancreatic tissue. Methods:Based on the amino acid sequence of BBN peptides, the precursor DOTA-PEG 4-BBN was designed and prepared, followed by labeling with 68Ga and conducting to quality control analysis. The tumor uptake of 68Ga-DOTA-PEG 4-BBN was assessed by microPET/CT imaging on tumor-bearing nude mice models with PC3 of high GRPR expression or HT29 of low GRPR expression (3 mice per group). 68Ga-DOTA-PEG 4-BBN microPET/CT imaging was also performed on 6 tumor-bearing nude mice models with PC3, among which 3 mice were treated with gastrin-releasing peptide antagonist 1 h prior to injection of the tracer (blocked group). After imaging, the ex vivo tissues of 3 PC3 tumor-bearing nude mice of the non-blocked group were examined for radioactivity counting to evaluation the biodistribution of 68Ga-DOTA-PEG 4-BBN, and the percentage injected dose per gram of tissue (%ID/g) was calculated. Independent-sample t test was used for data analysis. Results:The synthesis of 68Ga-DOTA-PEG 4-BBN took 40 min, with the radiochemical yield of 50%-60% (no decay correction) and the radiochemical purity of over 95%. After incubation in the serum at 37 ℃ for 4 h, the radiochemical purity remained more than 95%. The microPET/CT imaging results indicated that the uptake in the PC3 tumor was 3.2 times higher than the uptake in the tumor after GRPR blockade ((1.34±0.24) vs (0.42±0.03) %ID/g; t=5.47, P=0.005). After the injection of 68Ga-DOTA-PEG 4-BBN at 1 h and following imaging for 15 min, the PC3 tumor-bearing nude mice models of the non-blocked group showed that the pancreatic uptake ((0.150±0.058) %ID/g) was significantly lower than that in kidneys, lungs and liver ((9.452±0.234), (0.720±0.041), (1.572±0.213) %ID/g) with a profound statistical distinction ( t values: 11.28-53.02, all P<0.001). The tumor/pancreas uptake ratio could reach 16.92 in the tumor-bearing nude mice models with high GRPR expression. Conclusion:A novel molecular imaging probe 68Ga-DOTA-PEG 4-BBN demonstrates specific recognition of tumors with high GRPR expression while exhibiting low uptake in the pancreas, which shows its potential in prostate cancer molecular imaging.

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