1.Antisense oligonucleotides targeting IRF4 alleviate psoriasis.
Yanxia YU ; Yirui WANG ; Weiwei CHEN ; Chang ZHANG ; Zhuo LI ; Jing YU ; Minhao WANG ; Can SONG ; Sihao YAN ; Jiayi LU ; Liangdan SUN
Acta Pharmaceutica Sinica B 2025;15(7):3575-3590
Interferon regulatory factor 4 (IRF4) is a critical transcription factor that governs the differentiation of cluster of differentiation 4+ (CD4+) T cells. The pathogenesis and progression of psoriasis are primarily attributed to an immune imbalance stemming from the overproduction of interleukin-17A (IL-17A) by T lymphocytes. However, the role of IRF4 in psoriasis remains unexplored. In this study, we found that IRF4 activity is increased in the cutaneous lesions of patients with psoriasis in response to stimulation by IL-23A and IL-1β. This IRF4 elevation heightens its binding to the E1A binding protein p300 (EP300) promoter, triggering the transcription of downstream retinoic acid receptor-related orphan receptor-γt (RORγt) and increasing the secretion of IL-17A, thereby establishing the IL-1β/IL-23A-IRF4-EP300-RORC-IL-17A inflammatory cascade in psoriasis. The alleviation of imiquimod (IMQ)-induced psoriatic-like symptoms was achieved through the creation of a Irf4 -/- gene deletion mouse model and pharmacological inhibition using antisense oligonucleotides targeted for Irf4. This amelioration was accompanied by a decreased number of IL-17A-producing CD4+ T cells in the skin. The findings of this study suggest that IRF4 plays a crucial role in the promotion of inflammation and exacerbation of IMQ-induced psoriasiform dermatitis. Consequently, IRF4 targeting could be a promising therapeutic strategy.
2.Synthesis of ornithine peptidomimetic efflux pump inhibitors and synergistic antibiotic activity against Pseudomonas aeruginosa
Xi ZHU ; Xi-can MA ; Xin-tong ZHANG ; Yi-shuang LIU ; Ning HE ; Yun-ying XIE ; Dan-qing SONG
Acta Pharmaceutica Sinica 2024;59(6):1720-1729
In order to solve the problem of resistance of
3.Efficacy and Safety of Combined Bedaquiline and Delamanid Use among Patients with Multidrug-Resistant Tuberculosis in Beijing,China
Guo CAN ; Nie LIHUI ; Song YANHUA ; Liu RONGMEI ; Wu XIAOGUANG ; Shang YUANYUAN ; Zhang XUXIA ; Pang YU ; Gao MENGQIU
Biomedical and Environmental Sciences 2024;37(10):1195-1203
Objectives The combined use of bedaquiline and delamanid(BDQ-DLM)is limited by an increased risk of prolonging the QTc interval.We retrospectively evaluated patients who received DLM/BDQ-containing regimens at a TB-specialized hospital.We aimed to present clinical efficacy and safety data for Chinese patients. Methods This case-control study included patients with multidrug-resistant tuberculosis(MDR-TB)treated with BDQ alone or BDQ plus DLM. Results A total of 96 patients were included in this analysis:64 in the BDQ group and 32 in the BDQ+DLM group.Among the 96 patients with positive sputum culture at the initiation of BDQ alone or BDQ combined with DLM,46 patients(71.9%)in the BDQ group and 29(90.6%)in the BDQ-DLM group achieved sputum culture conversion during treatment.The rate of sputum culture conversion did not differ between the two groups.The time to sputum culture conversion was significantly shorter in the BDQ-DLM group than in the BDQ group.The most frequent adverse event was QTc interval prolongation;however,the frequency of adverse events did not differ between the groups. Conclusion In conclusion,our results demonstrate that the combined use of BDQ and DLM is efficacious and tolerable in Chinese patients infected with MDR-TB.Patients in the BDQ-DLM group achieved sputum culture conversion sooner than those in the BDQ group.
4.Perioperative safety and feasibility assessment of day-case transurethral holmium laser enucleation of prostate under over-night mode
Hui WANG ; Yutong SONG ; Can ZHU
China Journal of Endoscopy 2024;30(5):82-88
Objective To evaluate the perioperative safety and feasibility of day-case transurethral holmium laser enucleation of prostate(HoLEP)under over-night mode.Method From January 2021 to March 2023,83 patients of benign prostatic hyperplasia(BPH)were elected and treated with HoLEP by the one surgeon.According to different management methods,these patients were divided into the over-night day-case HoLEP group and the ordinary HoLEP group.Again,these patients were divided into large volume(≥50 mL)group and small volume(<50 mL)group according to the prostate volume.Record the age and perioperative data of all patients[total prostate volume,prostate resection weight,proportion of prostate resection,operating time,changes in peripheral venous blood hemoglobin(Hb),bladder flushing duration,catheter insertion duration,and success rate of first tube removal],the parameters of each group were compared.Result All of the 83 patients undergoing HoLEP surgery in this study,and there were no cases of HoLEP related reoperation or readmission.Among them,there were 43 cases in the over-night HoLEP group,aged 57~90 with an average of(70.1±7.3)years old,and the prostate volume was 29~161 mL with an average of(63.0±28.8)mL,All of them were discharged within 24 h,and there were no cases transferred to the ordinary HoLEP group,the success rate of first tube removal was 88.4%(38/43),and with average catheterization duration was(17.8±3.6)h;The other 40 cases were included into the ordinary HoLEP group,aged 55~87 with an average of(70.4±8.2)years old,the volume of the prostate was 22~118 mL with an average of(59.4±29.0)mL,the success rate of first tube removal was 90.0%(36/40),and with average catheterization duration was(77.5±25.1)h;There was no statistically significant difference in the perioperative parameters(total prostate volume,prostate resection weight,proportion of prostate resection,operating time,changes in peripheral venous blood Hb,and bladder flushing time)between the two groups(P>0.05),while the difference in catheter duration was statistically significant(P<0.01).Conclusion Regardless of the size of the prostate volume,day-case HoLEP is safe and feasible.Day-case HoLEP under the over-night mode is suitable for widespread and routine implementation in China,especially in medical centers with rich experience of HoLEP.
5.Metagenomic and targeted metabolomic analyses reveal distinct phenotypes of the gut microbiota in patients with colorectal cancer and type 2 diabetes mellitus.
Yong YANG ; Zihan HAN ; Zhaoya GAO ; Jiajia CHEN ; Can SONG ; Jingxuan XU ; Hanyang WANG ; An HUANG ; Jingyi SHI ; Jin GU
Chinese Medical Journal 2023;136(23):2847-2856
BACKGROUND:
Type 2 diabetes mellitus (T2DM) is an independent risk factor for colorectal cancer (CRC), and the patients with CRC and T2DM have worse survival. The human gut microbiota (GM) is linked to the development of CRC and T2DM, respectively. However, the GM characteristics in patients with CRC and T2DM remain unclear.
METHODS:
We performed fecal metagenomic and targeted metabolomics studies on 36 samples from CRC patients with T2DM (DCRC group, n = 12), CRC patients without diabetes (CRC group, n = 12), and healthy controls (Health group, n = 12). We analyzed the fecal microbiomes, characterized the composition and function based on the metagenomics of DCRC patients, and detected the short-chain fatty acids (SCFAs) and bile acids (BAs) levels in all fecal samples. Finally, we performed a correlation analysis of the differential bacteria and metabolites between different groups.
RESULTS:
Compared with the CRC group, LefSe analysis showed that there is a specific GM community in DCRC group, including an increased abundance of Eggerthella , Hungatella , Peptostreptococcus , and Parvimonas , and decreased Butyricicoccus , Lactobacillus , and Paraprevotella . The metabolomics analysis results revealed that the butyric acid level was lower but the deoxycholic acid and 12-keto-lithocholic acid levels were higher in the DCRC group than other groups ( P < 0.05). The correlation analysis showed that the dominant bacterial abundance in the DCRC group ( Parvimonas , Desulfurispora , Sebaldella , and Veillonellales , among others) was negatively correlated with butyric acid, hyodeoxycholic acid, ursodeoxycholic acid, glycochenodeoxycholic acid, chenodeoxycholic acid, cholic acid and glycocholate. However, the abundance of mostly inferior bacteria was positively correlated with these metabolic acid levels, including Faecalibacterium , Thermococci , and Cellulophaga .
CONCLUSIONS
Unique fecal microbiome signatures exist in CRC patients with T2DM compared to those with non-diabetic CRC. Alterations in GM composition and SCFAs and secondary BAs levels may promote CRC development.
Humans
;
Gastrointestinal Microbiome/genetics*
;
Diabetes Mellitus, Type 2
;
Microbiota
;
Bacteria/genetics*
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Fatty Acids, Volatile
;
Colorectal Neoplasms/metabolism*
;
Butyrates
;
Feces/microbiology*
6.Study on the value of fragmented red blood cell and fragmented red blood cells percentage for predicting the prognosis of sepsis patients.
Hui CHEN ; Kai Yuan SONG ; Can Hui PENG
Chinese Journal of Preventive Medicine 2023;57(8):1246-1252
To explore the predictive efficacy of fragmented red blood cells (FRC) and fragmented red blood cells percentage(FRC%) with regarding for the prognosis of septic patients, along with comparing with routine coagulation parameters. A prospective study was conducted. A total of 101 patients with sepsis who met the requirements admitted to the Intensive Care Department of the Third Xiangya Hospital of Central South University from June 1, 2022 to January 10, 2023 were selected as the research objects, they were divided into survival group and death group according to the 30-day prognosis. The clinical data and laboratory indexes such as FRCs, FRC% and Platelet (PLT) were compared between the survival group and the death group. Univariate logistic regression analysis was used first, then multivariate logistic regression analysis was used to analyze the factors affecting the prognosis. Receiver operator characteristic curve (ROC curve) was drawn to evaluate the predictive value of each parameter in the regression model for the prognosis of sepsis. The results showed that the levels of FRCs, FRC%, prothrombin time (PT), activated partial thromboplastin time (APTT) and D-dimer in death group were significantly higher than those in survival group, and PLT in death group were significantly lower than those in survival group (Z or t values were -3.712,-3.793,-2.119,-2.007,-2.209,all P<0.05). FRCs or FRC% and PLT could be independent predictors of 30-day mortality. The area under the ROC curve (AUC) of PLT for predicting 30-day death in sepsis patients was 0.727 (95%CI 0.629-0.811, P<0.01), when the optimal threshold was 137 ×109/L, the sensitivity was 83.87% and the specificity was 57.14%. The AUC of FRCs for predicting 30-day death in sepsis patients was was 0.732 (95%CI 0.635-0.815, P<0.01), when the optimal threshold was 10.1×109/L, the sensitivity was 77.42%, and the specificity was 67.14%. The AUC of FRC% for predicting 30-day death in sepsis patients was 0.737 (95%CI 0.640-0.820, P<0.01), When the optimal threshold was 0.34%, the sensitivity was 77.42%, and the specificity was 65.71%. In conclusion,PLT, FRCs and FRC% have great application value in the prognosis of sepsis. When the PLT, FRCs and FRC% of sepsis patients are more than 137 ×109/L, 10.1×109/L and 0.34% respectively, it is necessary to take necessary and reasonable clinical intervention measures as soon as possible.
7.Progress in research of risk prediction model for chronic kidney disease.
Zhi Qng ZENG ; Song Chun YANG ; Can Qing YU ; Lu Xia ZHANG ; Jun LYU ; Li Ming LI
Chinese Journal of Epidemiology 2023;44(3):498-503
Chronic kidney disease (CKD) is an important global public health problem that greatly threatens population health. Application of risk prediction model is a crucial way for the primary prevention of CKD, which can stratify the risk for developing CKD and identify high-risk individuals for more intensive interventions. By now, more than twenty risk prediction models for CKD have been developed worldwide. There are also four domestic risk prediction models developed for Chinese population. However, none of these models have been recommended in clinical guidelines yet. The existing risk prediction models have some limitations in terms of outcome definition, predictors, strategies for handling missing data, and model derivation. In the future, the applications of emerging biomarkers and polygenic risk scores as well as advances in machine learning methods will provide more possibilities for the further improvement of the model.
Humans
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Renal Insufficiency, Chronic
;
Risk Factors
;
Biomarkers
8.Clinical Efficacy of Guizhi Shaoyao Zhimutang Combined with Fire Needling in Treatment of Periarthritis of Shoulder with Wind-cold-dampness Impediment Syndrome by Stimulating Pain Points and "Shoulder Three Acupoints"
Shuhong GUI ; Yan CAI ; Qingguang QIN ; Can ZHAO ; Manping SONG
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(17):150-156
ObjectiveTo investigate the clinical efficacy of Guizhi Shaoyao Zhimutang (GZSYZM) combined with fire needling in the treatment of periarthritis of shoulder with wind-cold-dampness impediment syndrome by stimulating pain points and "shoulder three acupoints". MethodA total of 120 patients with periarthritis of shoulder with wind-cold-dampness impediment syndrome, admitted to Hainan General Hospital from August 2020 to August 2022, were randomly divided into two groups using a random number table. The control group (60 cases) received treatment with GZSYZM for two weeks, while the observation group (60 cases) received treatment with GZSYZM combined with fire needling at pain points and "shoulder three acupoints" for two weeks. The clinical efficacy, adverse reactions, shoulder pain intensity, shoulder joint function, and levels of calcitonin gene-related peptide (CGRP), cyclooxygenase-2 (COX-2), interleukin (IL)-2, and IL-17 before and after treatment were compared between the two groups. ResultThe total effective rate in the observation group was 88.33% (53/60), significantly higher than 68.33% (41/60) of the control group (χ²=7.070, P<0.01). Compared with the results before treatment, both groups showed significant reductions in pain rating index (PRI), visual analog scale (VAS) scores, present pain intensity (PPI), and Simplified McGill Pain Questionnaire (SF-MPQ) total scores, as well as serum levels of CGRP, COX-2, IL-2, and IL-17 after treatment (P<0.01), and improved pain intensity, daily life abilities, joint mobility, muscle strength, and Constant-Murley score (P<0.01). Compared with the control group after treatment, the observation group showed significantly reduced PRI, VAS score, PPI, SF-MPQ total score, as well as serum levels of CGRP, COX-2, IL-2, and IL-17 (P<0.01), and increased pain intensity, daily life abilities, joint mobility, muscle strength, and Constant-Murley score (P<0.01). There was no significant difference in the incidence of adverse reactions between the two groups. ConclusionGZSYZM combined with fire needling at pain points and "shoulder three acupoints" can effectively reduce the levels of serum inflammatory factors and pain mediators, alleviate pain, and improve shoulder joint function in patients with periarthritis of shoulder with wind-cold-dampness impediment syndrome.
9.Projections from the Prefrontal Cortex to Zona Incerta Mediate Fear Generalization.
Kun TONG ; Guang-Kai BU ; Si-Qi JING ; Tong WU ; Yu-Tong SONG ; Yue YOU ; Le LIU ; Yuan-Hao CHEN ; Jing-Ru HAO ; Nan SUN ; Can GAO
Neuroscience Bulletin 2023;39(7):1151-1156
10.Clinical analysis of combined immunotherapy in patients with malignant pleural mesothelioma.
Can ZHAO ; Kai Lun FEI ; Rui WAN ; Li Ping SONG ; Ping Chao XIANG ; Jian Chun DUAN
Chinese Journal of Oncology 2023;45(5):445-451
Objective: To observe the present situation, efficacy and safety of immunotherapy in patients with malignant pleural mesothelioma (MPM). Methods: The data of 39 patients with MPM in two centers from 2016 to 2021 were collected and the efficacy and safety were evaluated. According to the application of immune checkpoint inhibitors (ICIs), these patients, whose median clinical follow-up amounting to 18.97 months, were divided into immunotherapy group (19 cases) and control group (20 cases). Kaplan-Meier method and Log-rank test were used for the survival analysis. Results: The objective response rate (ORR) and the disease control rate (DCR) in the immunotherapy group is 21.05% and 79.0% respectively, compared with 10.0% and 55.0% in the control group; and the difference was not statistically significant (P>0.05). The median overall survival (OS) in the immunotherapy group was significantly longer than that in the control group (14.53 months vs 7.07 months, P=0.015), but there was no significant difference in the median progression free survival (PFS) between two groups (4.80 months vs 2.03 months, P=0.062). Single factor survival analysis showed that the nature of pleural effusion, pathological subtype and the efficacy of immunotherapy were related to both PFS and OS of the patients with MPM (P<0.05). The incidence of adverse reactions in immunotherapy group was 89.5% (17 out of 19 cases), and the most common adverse event was hematological toxicity (9 cases), followed by nausea and vomiting (7 cases), fatigue (6 cases) and skin damage (6 cases). Five patients had immune checkpoint inhibitors (ICIs) related adverse reactions with grade 1-2. Conclusions: Patients with MPM have begun to receive immunotherapy in more than 2-line mainly combined chemotherapy in the real world, and the median treatment line is 2-line. Either combined with chemotherapy or anti-angiogenesis therapy, ICI inhibitors have significant efficacy, controllable adverse events and good clinical value.
Humans
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Mesothelioma, Malignant/drug therapy*
;
Mesothelioma/drug therapy*
;
Lung Neoplasms/drug therapy*
;
Immune Checkpoint Inhibitors/therapeutic use*
;
Immunotherapy/adverse effects*

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