1.A randomized,double-blind,placebo-controlled,multicenter clinical study of Shengxuebao Mixture in treating cancer-related anemia
Zhu LIU ; Xiangrong LI ; Xiaojun DAI ; Yanjun WANG ; Xiao LI ; Keqiong WANG ; Tao WU ; Miaowen ZHONG ; Hongjiang YU ; Ji FENG ; Zuowei HU ; Kainan LI ; Shaowei CHEN ; Chunhua LI ; Zhengchuan FU ; Rui ZHANG ; Yongfa CHEN ; Hongyu XU ; Tao REN ; Yibo YAO ; Jianxu JIN ; Pengyin WANG ; Zhijiang HE ; Jian SHEN ; Lei WANG ; Min LI ; Wenming CHANG ; Xinyi CHEN ; Li HOU
Journal of Beijing University of Traditional Chinese Medicine 2025;48(10):1447-1459
Objective We aimed to evaluate the efficacy and safety of Shengxuebao Mixture in the treatment of cancer-related anemia(CRA)presenting with syndrome of deficiency of liver and kidney combined with syndrome of deficiency of both qi and blood.Methods A randomized,double-blind,placebo-controlled,multicenter clinical trial was conducted.Eligible patients with malignant tumors meeting the inclusion and exclusion criteria were enrolled from 26 hospitals,including Dongzhimen Hospital,Beijing University of Chinese Medicine,Xiaogan Central Hospital,and Yangzhou Hospital of Traditional Chinese Medicine,from June 1,2022,to September 30,2024.Patients were allocated 1:1 to either the experimental group receiving Shengxuebao Mixture or the control group receiving its simulator(placebo)using a block randomization method under double-blind conditions.Both groups received 15 mL orally three times daily for 28 consecutive days.The primary efficacy indicators included the hemoglobin(Hb)improvement rate(RHb)and the traditional Chinese medicine(TCM)syndrome improvement rate(RTCM)at week 4 of treatment.The secondary efficacy indicators encompassed Hb and red blood cell(RBC)count,Karnofsky Performance Status(KPS)score,TCM syndrome score,individual TCM symptom scores,and changes in each of these indicators compared to the baseline period at weeks 2,4,and 6 of treatment.Safety evaluations were conducted at week 4 of treatment.Results A total of 239 patients were enrolled,with 225 cases included in the Full Analysis Set(FAS)(109 in the experimental group vs.116 control group),163 in the Per Protocol Set(PPS)(77 vs.86),and 225 in the Safety Set(SS)(109 vs.116).Baseline characteristics between groups showed no significant differences.Significant differences were observed between the experimental and control groups in RHb at week 4(FAS:49.51%vs.35.24%,P<0.05;PPS:53.25%vs.36.05%,P<0.05)and RTCM at week 4(FAS:61.54%vs.39.62%,P<0.01;PPS:64.94%vs.40.70%,P<0.01).At weeks 2,4,and 6,the experimental group showed greater improvements in Hb and RBC counts than the control group.Additionally,the TCM syndrome scores were lower in the experimental group than in the control group at these time points.Except for week 2 in PPS,the KPS improvement was better in the experimental group than in the control group(P<0.05).The experimental group also demonstrated a greater reduction in scores for individual TCM symptoms such as spiritlessness and weakness,poor appetite and reduced food intake at weeks 4 and 6 compared to the control group(P<0.05,P<0.01).Furthermore,the reduction in vertigo score was more pronounced in the experimental group at week 6(P<0.01).For the score of pale and lusterless complexion,only in the PPS was the reduction from baseline more significant in the experimental group than in the control group at weeks 4 and 6(P<0.05).No significant differences were observed between the experimental and control groups in the incidence of all adverse events or drug-related adverse reactions.Conclusion Shengxuebao Mixture demonstrates significant efficacy in patients with CRA presenting syndrome of deficiency of liver and kidney combined with syndrome of deficiency of both qi and blood,effectively increasing Hb levels,ameliorating TCM syndromes,alleviating clinical symptoms,and enhancing functional status,with no significant difference in adverse drug reactions compared to the placebo.
2.Three Janus kinase inhibitors in the treatment of rheumatoid arthritis:a rapid health technology assessment
Yu LI ; Xiaojun FENG ; Peng LYU ; Jingli ZHANG ; Tianlu SHI
Chinese Journal of Pharmacoepidemiology 2025;34(4):437-447
Objective To evaluate the efficacy,safety and economy of three Janus kinase inhibitors in the treatment of rheumatoid arthritis(RA)using a rapid health technology assessment method,and to provide a basis for drug access and rational clinical use.Methods PubMed,Cochrane Library,Embase,CNKI,WanFang Data databases and the official websites of foreign health technology assessment(HTA)institutions were searched electronically to collect HTA reports,systematic reviews/Meta-analysis and pharmacoeconomics studies of tofacitinib,baricitinib,and upadacitinib in the treatment of RA from inception to December 31,2024.Two reviewers independently screened the literature,extracted information and performed quality assessment of the included studies,and then performed descriptive analysis on the results.Results A total of 16 literature were included,including 12 systematic reviews/Meta-analysis and 4 pharmacoeconomic studies.In terms of efficacy,taking the American College of Rheumatology(ACR)evaluation criteria for symptom relief 20%(ACR20),ACR50,ACR70 and disease activity score 28(DAS28)<2.6 response rates as the efficacy indicators,upadacitinib 30 mg and upadacitinib 15 mg had better effectiveness in the treatment of RA patients.In terms of safety,the incidence of adverse drug events was the lowest in RA patients treated with 15 mg of upadacitinib.The incidence of serious adverse drug events in RA patients treated with tofacitinib 5 mg was the lowest.In terms of economy,compared with tofacitinib and baricitinib,upadacitinib 15 mg was the most economical.Conclusion Upadacitinib 15 mg has better efficacy,safety and economy in the treatment of RA patients.
3.A randomized,double-blind,placebo-controlled,multicenter clinical study of Shengxuebao Mixture in treating cancer-related anemia
Zhu LIU ; Xiangrong LI ; Xiaojun DAI ; Yanjun WANG ; Xiao LI ; Keqiong WANG ; Tao WU ; Miaowen ZHONG ; Hongjiang YU ; Ji FENG ; Zuowei HU ; Kainan LI ; Shaowei CHEN ; Chunhua LI ; Zhengchuan FU ; Rui ZHANG ; Yongfa CHEN ; Hongyu XU ; Tao REN ; Yibo YAO ; Jianxu JIN ; Pengyin WANG ; Zhijiang HE ; Jian SHEN ; Lei WANG ; Min LI ; Wenming CHANG ; Xinyi CHEN ; Li HOU
Journal of Beijing University of Traditional Chinese Medicine 2025;48(10):1447-1459
Objective We aimed to evaluate the efficacy and safety of Shengxuebao Mixture in the treatment of cancer-related anemia(CRA)presenting with syndrome of deficiency of liver and kidney combined with syndrome of deficiency of both qi and blood.Methods A randomized,double-blind,placebo-controlled,multicenter clinical trial was conducted.Eligible patients with malignant tumors meeting the inclusion and exclusion criteria were enrolled from 26 hospitals,including Dongzhimen Hospital,Beijing University of Chinese Medicine,Xiaogan Central Hospital,and Yangzhou Hospital of Traditional Chinese Medicine,from June 1,2022,to September 30,2024.Patients were allocated 1:1 to either the experimental group receiving Shengxuebao Mixture or the control group receiving its simulator(placebo)using a block randomization method under double-blind conditions.Both groups received 15 mL orally three times daily for 28 consecutive days.The primary efficacy indicators included the hemoglobin(Hb)improvement rate(RHb)and the traditional Chinese medicine(TCM)syndrome improvement rate(RTCM)at week 4 of treatment.The secondary efficacy indicators encompassed Hb and red blood cell(RBC)count,Karnofsky Performance Status(KPS)score,TCM syndrome score,individual TCM symptom scores,and changes in each of these indicators compared to the baseline period at weeks 2,4,and 6 of treatment.Safety evaluations were conducted at week 4 of treatment.Results A total of 239 patients were enrolled,with 225 cases included in the Full Analysis Set(FAS)(109 in the experimental group vs.116 control group),163 in the Per Protocol Set(PPS)(77 vs.86),and 225 in the Safety Set(SS)(109 vs.116).Baseline characteristics between groups showed no significant differences.Significant differences were observed between the experimental and control groups in RHb at week 4(FAS:49.51%vs.35.24%,P<0.05;PPS:53.25%vs.36.05%,P<0.05)and RTCM at week 4(FAS:61.54%vs.39.62%,P<0.01;PPS:64.94%vs.40.70%,P<0.01).At weeks 2,4,and 6,the experimental group showed greater improvements in Hb and RBC counts than the control group.Additionally,the TCM syndrome scores were lower in the experimental group than in the control group at these time points.Except for week 2 in PPS,the KPS improvement was better in the experimental group than in the control group(P<0.05).The experimental group also demonstrated a greater reduction in scores for individual TCM symptoms such as spiritlessness and weakness,poor appetite and reduced food intake at weeks 4 and 6 compared to the control group(P<0.05,P<0.01).Furthermore,the reduction in vertigo score was more pronounced in the experimental group at week 6(P<0.01).For the score of pale and lusterless complexion,only in the PPS was the reduction from baseline more significant in the experimental group than in the control group at weeks 4 and 6(P<0.05).No significant differences were observed between the experimental and control groups in the incidence of all adverse events or drug-related adverse reactions.Conclusion Shengxuebao Mixture demonstrates significant efficacy in patients with CRA presenting syndrome of deficiency of liver and kidney combined with syndrome of deficiency of both qi and blood,effectively increasing Hb levels,ameliorating TCM syndromes,alleviating clinical symptoms,and enhancing functional status,with no significant difference in adverse drug reactions compared to the placebo.
4.Research advances in machine learning for prognosis and risk of adverse event prediction after mechanical thrombectomy in acute anterior circulation large vessel occlusion
Chenwei LI ; Keke YANG ; Xiaojun WANG ; Weihua GUO ; Zhiheng FENG ; Huiyuan PENG
Chinese Journal of Cerebrovascular Diseases 2025;22(3):210-216,后插1
Acute large vessel occlusion stroke(ALVOS)of anterior circulation is associated with severe clinical manifestations and high rates of disability and mortality.Mechanical thrombectomy has emerged as the primary therapeutic intervention.However,post-procedural outcomes remain highly variable,and patients continue to face elevated risks of poor prognosis.Machine learning,a transformative tool in medical research,enables comprehensive analysis of multimodal data to identify specific biomarkers and improve the accuracy of predictions for clinical outcomes and adverse events.This review summarized the latest developments in machine learning applications aim at predicting post-thrombectomy prognosis and risk of adverse event,including futile recanalization,hemorrhagic transformation,and malignant cerebral edema in patients with anterior circulation ALVOS in order to provide a basis for developing personalized treatment plan and improve their clinical prognosis.
5.Analysis and prediction of disease burden of idiopathic epilepsy in China
Xiaojun WANG ; Chenwei LI ; Jianglin RAN ; Zhiheng FENG ; Keke YANG ; Huiyuan PENG
Chinese Journal of Neuromedicine 2025;24(7):689-698
Objective:To describe the temporal trend of disease burden of idiopathic epilepsy in China from 1990 to 2021 and predict the incidence of idiopathic epilepsy in China from 2022 to 2035 to provide references for the formulation of relevant health policies and measures.Methods:Based on data from the Global Burden of Disease Study 2021 (GBD 2021) database regarding idiopathic epilepsy in China, changes in disease burden from 1990 to 2021 were acquired. Disease burden was quantified using age-standardized incidence rate (ASIR), age-standardized prevalence rate (ASPR), age-standardized mortality rate (ASMR), age-standardized disability-adjusted life years (DALYs) rate (ASDR) and their 95% uncertain interval (UI). Temporal trend analysis was performed using a linear regression model to estimate the estimated annual percent change (EAPC) and annual percentage change (APC) in incidence of idiopathic epilepsy and their 95% CI. Additionally, incidence and number of patients with idiopathic epilepsy in China from 2022 to 2035 were predicted using Bayesian age-period-cohort model. Results:The ASIR of idiopathic epilepsy increased from 22.35 per 100,000 population in 1990 (95% UI: 15.04-30.92 per 100,000 population) to 28.19 per 100,000 population in 2021 (95% UI: 19.03-37.89 per 100,000 population), with an EAPC of 0.12% (95% CI: -0.10%-0.34%); ASPR of idiopathic epilepsy increased from 189.27 per 100,000 population in 1990 (95% UI: 132.48-252.95 per 100,000 population) to 214.71 per 100,000 population in 2021 (95% UI: 150.10-278.56 per 100,000 population), with an EAPC of -0.32% (95% CI: -0.57%-0.06%); ASMR of idiopathic epilepsy decreased from 1.86 per 100,000 population in 1990 (95% UI: 1.59-2.24 per 100,000 population) to 0.80 per 100,000 population in 2021 (95% UI: 0.67-1.00 per 100,000 population), with an EAPC of -2.96% (95% CI: -3.09%-2.82%); ASDR of idiopathic epilepsy decreased from 178.60 per 100,000 population in 1990 (95% UI: 143.44-220.63 per 100,000 population) to 101.39 per 100,000 population in 2021 (95% UI: 72.51-139.40 per 100,000 population), with an EAPC of -2.38% (95% CI: -2.54%-2.22%). The prediction model showed that by 2035, the prevalence of idiopathic epilepsy in China will be 28.27 per 100,000 (95% CI: 23.19-38.66), with an estimated 394,928 incident cases (95% CI: 324,037-540,128). Conclusions:From 1990 to 2021, the ASIR and ASPR of idiopathic epilepsy in China show an upward trend, while the ASMR and ASDR hace a decline trend. Incidence of idiopathic epilepsy in China is expected to remain stable over the next decade.
6.Trends in adenoidectomy in children in Beijing tertiary hospitals from 2013 to 2022
Jieqiong LIANG ; Zhongyuan ZHANG ; Ruikun WANG ; Qian WANG ; Yimin ZHANG ; Mengyao LI ; Xiaojun ZHAN ; Yingxia LU ; Moning GUO ; Feng LU ; Minjiang GUO ; Qinglong GU
Chinese Journal of Preventive Medicine 2025;59(11):1946-1951
To examine the evolution of surgical techniques and trends in overall inpatient burden for pediatric adenoidectomy in Beijing tertiary hospitals from 2013 to 2022. A retrospective observational study was conducted using the regional health information platform of Beijing. Data from children aged ≤14 years who underwent adenoidectomy between 2013 and 2022 were extracted, including total hospitalization cost, length of stay(LOS), surgical material cost, surgical fee, operative technique, perioperative antimicrobial drugs cost, coagulation factor cost, and blood transfusion cost. The Mann-Kendall trend test was used to assess temporal changes in total hospitalization expenses and the structure of cost components. The results showed that over the 10-year period from 2013 to 2022, a total of 25 989 children underwent adenoidectomy in tertiary hospitals. The proportion of children aged ≤6 years increased from 59.83% to 76.11%, showing a significant upward trend ( Z=2.15, P=0.032). Only one case required surgical hemostasis due to postoperative bleeding. During the ten-year period, the median hospitalization cost for adenoidectomy in tertiary hospitals was ¥12 425.82 (¥11 307.43, ¥14 955.42).Overall hospitalization cost demonstrated a fluctuating downward pattern, decreasing from ¥15 229.73 in 2013 to ¥13 927.52 in 2022, this declining trend was not statistically significant( Z=-0.54, P=0.592). In contrast, the surgical costs showed an upward trend over the decade increasing from ¥1 856.22 in 2013 to ¥3 726.45 in 2022, which was statistically significant ( Z=3.22, P=0.001), while the cost of surgical materials showed no significant increase ( Z=1.79, P=0.074).Concurrently, the average LOS decreased remarkably from 10.56 days in 2013 to 3.26 days in 2022 ( Z=-3.94, P<0.001). The cost of perioperative antimicrobial drugs decreased ( Z=-3.94, P<0.001), while the cost of coagulation factors and blood transfusion remained unchanged ( Z=0.54, P=0.592; Z=0.56, P=0.578). Comparison between 2013-2017 and 2018-2022 showed a significant increase in the use of coblation from 28.9% to 42.5% ( χ2=638.7, P<0.001).Furthermore, in the coblation group, total hospitalization cost decreased by 27.73%, surgical cost increased by 94.98%, surgical material cost decreased by 10.33%, LOS shortened by 56.24%, and antimicrobial drug cost increased by 43.03%. In contrast, the non-coblation group showed a 23.94% increase in total hospitalization cost, a 57.08% increase in surgical procedure cost, a 33.88% increase in material cost, and a 30.14% reduction in LOS and a 26.0% decrease in antimicrobial drugs cost. In conclusion,from 2013 to 2022, total hospitalization cost for pediatric adenoidectomy in Beijing tertiary hospitals remained stable. Compared to non-coblation techniques, coblation was associated with a shorter LOS, lower total costs, a higher proportion of surgical fees, and a decreased proportion of material costs, without a significant increase in overall healthcare costs.
7.The efficacy of blinatumomab in the treatment of pediatric B-cell acute lymphoblastic leukemia: a multicenter study
Weiling YAN ; Jun LU ; Hua WANG ; Lihua YU ; Huidi FENG ; Bai LI ; Wenguang JIA ; Jian WANG ; Wenting HU ; Xue TANG ; Jing FAN ; Yujie GUAN ; Xiaolan LI ; Yalan YOU ; Yongmin TANG ; Xiaojun XU
Chinese Journal of Pediatrics 2025;63(11):1194-1200
Objective:To investigate the efficacy and toxicity of blinatumomab in the first-line and second-line treatment of pediatric B-cell acute lymphoblastic leukemia (B-ALL).Methods:A multi-center retrospective cohort study was conducted to analyze clinical data from 323 pediatric B-ALL patients treated with blinatumomab across 14 hospitals in China from May 2021 to July 2023. Patients were divided into four groups based on the treatment phase and disease status when blinatumomab was used: relapsed/refractory group, post-consolidation minimal residual disease (MRD)-positive group, early MRD-positive group, and MRD-negative group. Blinatumomab for the relapsed/refractory group was considered as second-line treatment, while the other 3 groups as first-line treatment. The MRD negativity rate after treatment, the survival rates and the incidence of severe adverse events were compared across these groups. Patients who received blinatumomab for more than 7 days were included in the efficacy analysis. Survival analysis was performed using the Kaplan-Meier method, and Log-Rank test was used to compare the survival rates among groups.Results:Among the 323 patients, 191 (59.1%) were male, with the age of 6.2 (3.9, 10.5) years. There were 117 patients in the relapsed/refractory group, 62 cases in the post-consolidation MRD-positive group, 43 cases in the early MRD-positive group, and 101 cases in the MRD negative group. In the relapsed/refractory group, the complete remission rate and MRD negativity rate after one course of blinatumomab were 71.4% (35/49) and 81.5% (75/92) for the 49 children without complete remission and the 92 children with flow cytometry-positive MRD, respectively. In the post-consolidation MRD-positive group, the MRD negativity rates after one course of blinatumomab were 100.0% (27/27), 12/16 and 9/19 for patients with MRD positivity detected by flow cytometry, polymerase chain reaction and next-generation sequencing, respectively. In the early MRD-positive group, the MRD negativity rates were 96.7% (29/30) and 9/9 for flow cytometry and next-generation sequencing, respectively. The 2-year overall survival rate and event-free survival rate for the 319 children evaluable for efficacy were (90.6±1.7)% and (87.6±1.9)%, respectively, with the relapsed/refractory group showing significantly lower overall survival rates and event-free survival rate compared to the other groups ( χ2=21.40, 26.21,both P<0.001). Grade 3 or higher adverse events occurred in 128 cases (39.6%), with hematological toxicity observed in 101 cases, while cytokine release syndrome (CRS), infection, and neurotoxicity occurred in 11, 26 and 8 cases, respectively. In addition, there were statistically significant differences in the grade 3 or higher CRS among the four groups ( χ2=8.03, P<0.05). Conclusion:Blinatumomab can clear MRD more effectively and achieve superior survival outcomes when used as first-line treatment for pediatric B-ALL, with less CRS.
8.Study on non-genetic risk factors for antiepileptic drug-induced severe cutaneous adverse reactions in HLA-B*15:02 negative patients
Mingying DENG ; Benjun YANG ; Xiaojun FENG ; Liqin TANG
China Pharmacy 2025;36(24):3091-3095
OBJECTIVE To analyze the non-genetic risk factors for severe cutaneous adverse reactions (SCARs) related to antiepileptic drugs (AEDs) in HLA-B*15:02 negative patients, and provide a basis for clinical precision medication. METHODS A retrospective case-control design was used to include patients who underwent HLA-B*15:02 testing at our hospital from January 2022 to December 2024. Patients were divided into SCARs group (15 cases who were HLA-B*15:02 negative and diagnosed with SCARs) and control group (38 cases who were HLA-B*15:02 negative and used AEDs). Risk factors were evaluated using univariate analysis and a multivariable Firth penalty likelihood logistic regression model (Firth regression), and Benjamin-Hochberg false discovery rate (FDR) and Firth regression were used for correction, and sensitivity analysis was used to quantify the impact of potential biases in carbamazepine exposure rates in the control group on the results. RESULTS Univariate analysis showed that age≥50 years, use of carbamazepine, and combination use of antibiotics/antiviral drugs were risk factors for developing AEDs- related SCARs (OR=18.15, 7.54, 13.46, 95%CI of 4.13-79.84, 1.89-30.08, 1.36-133.18, all P<0.05), while taking lamotrigine was a protective factor [OR=0.10, 95%CI of 0.02-0.39, P<0.05]. After FDR correction, the above factors still maintained statistical significance (P<0.05). The results of multivariate analysis showed that age≥50 years [adjusted OR=16.27, 95%CI of 3.98-66.55, P<0.001] and taking carbamazepine [adjusted OR=7.11, 95%CI of 1.82-27.85, P=0.005] were independent risk factors for the occurrence of SCARs-related AEDs. The results of sensitivity analysis showed that the adjusted risk OR range for taking carbamazepine was between 14.2 and 28.4. CONCLUSIONS Age≥50 years and use of carbamazepine are independent non- genetic risk factors for the development of SCARs-related AEDs in HLA-B*15:02 negative patients. It is recommended that elderly patients should prioritize the use of AEDs other than carbamazepine.
9.Inhibition of WAC alleviates the chondrocyte proinflammatory secretory phenotype and cartilage degradation via H2BK120ub1 and H3K27me3 coregulation.
Peitao XU ; Guiwen YE ; Xiaojun XU ; Zhidong LIU ; Wenhui YU ; Guan ZHENG ; Zepeng SU ; Jiajie LIN ; Yunshu CHE ; Yipeng ZENG ; Zhikun LI ; Pei FENG ; Qian CAO ; Zhongyu XIE ; Yanfeng WU ; Huiyong SHEN ; Jinteng LI
Acta Pharmaceutica Sinica B 2025;15(8):4064-4077
Several types of arthritis share the common feature that the generation of inflammatory mediators leads to joint cartilage degradation. However, the shared mechanism is largely unknown. H2BK120ub1 was reportedly involved in various inflammatory diseases but its role in the shared mechanism in inflammatory joint conditions remains elusive. The present study demonstrated that levels of cartilage degradation, H2BK120ub1, and its regulator WW domain-containing adapter protein with coiled-coil (WAC) were increased in cartilage in human rheumatoid arthritis (RA) and osteoarthritis (OA) patients as well as in experimental RA and OA mice. By regulating H2BK120ub1 and H3K27me3, WAC regulated the secretion of inflammatory and cartilage-degrading factors. WAC influenced the level of H3K27me3 by regulating nuclear entry of the H3K27 demethylase KDM6B, and acted as a key factor of the crosstalk between H2BK120ub1 and H3K27me3. The cartilage-specific knockout of WAC demonstrated the ability to alleviate cartilage degradation in collagen-induced arthritis (CIA) and collagenase-induced osteoarthritis (CIOA) mice. Through molecular docking and dynamic simulation, doxercalciferol was found to inhibit WAC and the development of cartilage degradation in the CIA and CIOA models. Our study demonstrated that WAC is a key factor of cartilage degradation in arthritis, and targeting WAC by doxercalciferol could be a viable therapeutic strategy for treating cartilage destruction in several types of arthritis.
10.The Medial Prefrontal Cortex-Basolateral Amygdala Circuit Mediates Anxiety in Shank3 InsG3680 Knock-in Mice.
Jiabin FENG ; Xiaojun WANG ; Meidie PAN ; Chen-Xi LI ; Zhe ZHANG ; Meng SUN ; Tailin LIAO ; Ziyi WANG ; Jianhong LUO ; Lei SHI ; Yu-Jing CHEN ; Hai-Feng LI ; Junyu XU
Neuroscience Bulletin 2025;41(1):77-92
Anxiety disorder is a major symptom of autism spectrum disorder (ASD) with a comorbidity rate of ~40%. However, the neural mechanisms of the emergence of anxiety in ASD remain unclear. In our study, we found that hyperactivity of basolateral amygdala (BLA) pyramidal neurons (PNs) in Shank3 InsG3680 knock-in (InsG3680+/+) mice is involved in the development of anxiety. Electrophysiological results also showed increased excitatory input and decreased inhibitory input in BLA PNs. Chemogenetic inhibition of the excitability of PNs in the BLA rescued the anxiety phenotype of InsG3680+/+ mice. Further study found that the diminished control of the BLA by medial prefrontal cortex (mPFC) and optogenetic activation of the mPFC-BLA pathway also had a rescue effect, which increased the feedforward inhibition of the BLA. Taken together, our results suggest that hyperactivity of the BLA and alteration of the mPFC-BLA circuitry are involved in anxiety in InsG3680+/+ mice.
Animals
;
Prefrontal Cortex/metabolism*
;
Basolateral Nuclear Complex/metabolism*
;
Mice
;
Anxiety/metabolism*
;
Nerve Tissue Proteins/genetics*
;
Male
;
Gene Knock-In Techniques
;
Pyramidal Cells/physiology*
;
Mice, Transgenic
;
Neural Pathways/physiopathology*
;
Mice, Inbred C57BL
;
Microfilament Proteins

Result Analysis
Print
Save
E-mail