1.Compilation Instruction for Expert Consensus on Clinical Application of Binghuang Fule Ointment
Xin CUI ; Yanping BAI ; Ping SONG ; Yuanyuan LI ; Yanming XIE
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):267-273
Compilation instruction for Expert Consensus on Clinical Application of Binghuang Fule Ointment elaborates on the formulation methods and evidence-based basis of the consensus. To address the problems of insufficient evidence on efficacy, vague indications, and a lack of uniform standard for Binghuang Fule Ointment in clinical application, 34 experts from 29 medical institutions across China participated in the compilation under the lead of the Institute of Basic Research in Clinical Medicine and Xiyuan Hospital, China Academy of Chinese Medical Sciences, as well as China-Japan Friendship Hospital. The compilation strictly adhered to the WHO Handbook for Guideline Development (GB/T 1.1—2020), and the Guidance of Instructions for Compiling Expert Consensus on Clinical Practice of Chinese Patent Medicine. Through multidisciplinary collaboration, the compilation was completed using the Grading of Recommendations Assessment, Development and Evaluations (GRADE) evidence grading system. The detailed workflow included various key links. In clinical question construction, 15 items were screened by the nominal group method. In evidence retrieval, Chinese and English databases, along with gray literature, were covered to obtain 116 clinical and 33 pharmaceutical studies. In safety assessment, drug monitoring data and clinical research results were integrated, clarifying local adverse skin reactions and contraindications. Ultimately, 8 recommendations were formed by the GRADE grid method, while 16 consensus suggestions were reached via the majority vote rule. The results showed that the Binghuang Fule Ointment was applicable to eczema, psoriasis, neurodermatitis, tinea pedis, and other diseases. The Consensus also elucidated the syndrome differentiation points, usage and dosage for different diseases (such as adjustment of course and application frequency), as well as the indications of combination medication. Additionally, safety assessment suggested that the Ointment should be used with caution in individuals with skin ulceration or hypersensitivity. To ensure methodological rigor, the compilation process went through three rounds of internal and external expert reviews, while a comprehensive analysis was conducted by literature analysis, the Delphi method, and other methods. This compilation instruction provided methodological support for the clinical transformation of the Consensus through key links, including project initiation, international registration, informed consent, conflict-of-interest statements, evidence evaluation, and popularization. The Consensus will be continuously improved through a dynamic revision mechanism in the future.
2.Compilation Instruction for Expert Consensus on Clinical Application of Binghuang Fule Ointment
Xin CUI ; Yanping BAI ; Ping SONG ; Yuanyuan LI ; Yanming XIE
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(8):267-273
Compilation instruction for Expert Consensus on Clinical Application of Binghuang Fule Ointment elaborates on the formulation methods and evidence-based basis of the consensus. To address the problems of insufficient evidence on efficacy, vague indications, and a lack of uniform standard for Binghuang Fule Ointment in clinical application, 34 experts from 29 medical institutions across China participated in the compilation under the lead of the Institute of Basic Research in Clinical Medicine and Xiyuan Hospital, China Academy of Chinese Medical Sciences, as well as China-Japan Friendship Hospital. The compilation strictly adhered to the WHO Handbook for Guideline Development (GB/T 1.1—2020), and the Guidance of Instructions for Compiling Expert Consensus on Clinical Practice of Chinese Patent Medicine. Through multidisciplinary collaboration, the compilation was completed using the Grading of Recommendations Assessment, Development and Evaluations (GRADE) evidence grading system. The detailed workflow included various key links. In clinical question construction, 15 items were screened by the nominal group method. In evidence retrieval, Chinese and English databases, along with gray literature, were covered to obtain 116 clinical and 33 pharmaceutical studies. In safety assessment, drug monitoring data and clinical research results were integrated, clarifying local adverse skin reactions and contraindications. Ultimately, 8 recommendations were formed by the GRADE grid method, while 16 consensus suggestions were reached via the majority vote rule. The results showed that the Binghuang Fule Ointment was applicable to eczema, psoriasis, neurodermatitis, tinea pedis, and other diseases. The Consensus also elucidated the syndrome differentiation points, usage and dosage for different diseases (such as adjustment of course and application frequency), as well as the indications of combination medication. Additionally, safety assessment suggested that the Ointment should be used with caution in individuals with skin ulceration or hypersensitivity. To ensure methodological rigor, the compilation process went through three rounds of internal and external expert reviews, while a comprehensive analysis was conducted by literature analysis, the Delphi method, and other methods. This compilation instruction provided methodological support for the clinical transformation of the Consensus through key links, including project initiation, international registration, informed consent, conflict-of-interest statements, evidence evaluation, and popularization. The Consensus will be continuously improved through a dynamic revision mechanism in the future.
3.Expert Consensus on Clinical Application of SkinPro Ointment
Xin CUI ; Ping SONG ; Yuanyuan LI ; Yanping BAI ; Yanming XIE
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(9):163-170
SkinPro Ointment is an emulsion-based preparation derived from a traditional Tibetan medical empirical formula and developed using modern pharmaceutical technology. It is an exclusive patented product of Tibet Hairong Tangguo Pharmaceutical Co. Ltd. and has been listed as a National Protected Traditional Chinese Medicine Variety, the Pharmacopoeia of the People's Republic of China, and classified as a Category B product in the National Basic Medical Insurance Catalog. The ointment possesses the functions of clearing heat and drying dampness, activating blood circulation and dispelling wind, relieving itching and reducing inflammation. Clinically, it is used for skin pruritus caused by dampness-heat accumulation or blood-heat with wind-dryness, as well as pruritic skin diseases such as neurodermatitis, eczema, tinea pedis, and psoriasis. To clarify the standards for its clinical application and promote rational drug use, a consensus working group comprising 34 national experts in dermatology, evidence-based medicine, and pharmacy was established. Through expert interviews, the nominal group technique, and questionnaire surveys, 15 clinical issues were identified. The Grading of Recommendations Assessment, Development and Evaluation (GRADE) evidence grading system was employed to assess the quality of evidence, leading to the formulation of the Expert Consensus on the Clinical Application of SkinPro Ointment. This consensus specifies that the intended users are physicians and pharmacists in medical institutions at all levels. It standardizes the clinical application of the ointment, including syndrome characteristics, dosage and course of treatment, combination therapy, precautions, and contraindications. Recommendations and consensus suggestions were formed addressing the 15 clinical issues, covering the following key areas: ①Indications and TCM syndromes: In TCM, the ointment mainly treats conditions such as "damp sores" (Shichuang), "white scaling" (Baibi), "collar sores" (Shelingchuang), and "damp foot Qi" (Jiaoshiqi), corresponding to eczema, psoriasis, neurodermatitis, and tinea pedis in Western medicine. The relevant TCM syndromes are identified as dampness-heat accumulation or blood-heat with wind-dryness. ②Usage and dosage: For external use, apply to the affected area 3 times daily. The dosage should follow the fingertip unit (FTU) principle. A treatment course of 1-2 weeks is recommended for mild to moderate cases; for serious cases, the course should be followed as prescribed by a physician. ③Combined therapy: The ointment can be used as monotherapy for mild cases. For moderate to severe cases, combination therapy is recommended, with reference to relevant clinical guidelines. ④Safety: Common adverse reactions include skin rashes, pruritus, and erythema. The ointment is contraindicated in patients with broken skin or obvious exudation at the affected area, as well as in patients with known hypersensitivity to any of its components. Contact with sensitive areas such as the eyes and oral mucosa should be avoided. Modern research shows that the ointment also has potential efficacy in other dermatological conditions, such as adult atopic dermatitis, tinea cruris, exfoliative keratolysis, acne vulgaris, and Malassezia folliculitis. This consensus provides a scientific basis for promoting the rational clinical use of SkinPro Ointment, improving its therapeutic efficacy, and reducing medication risks. Future updates will be dynamically revised according to emerging clinical issues and new evidence.
4.Hydroxysafflor yellow A inhibits lipopolysaccharide-induced vascular smooth muscle cell-derived foam cell formation through the NLPR3/IL-1β/PCSK9 signaling pathway via activation of autophagy.
Lin LIU ; Yingyun LI ; Boyu LIU ; Guoting LI ; Changchao YANG ; Junna SONG ; Qingzhuo CUI ; Jingshan ZHAO
Chinese Medical Journal 2025;138(23):3195-3197
5.Mechanisms of puerarin-mediated lipid modulation to enhance glucose-lowering effects via hepatic ChREBP/PPARα/PPARγ in vitro.
Can CUI ; Han-Yue XIAO ; Li-Ke YAN ; Zhong-Hua XU ; Wei-Hua LIU ; Hui-Ping LI ; Jun TU
China Journal of Chinese Materia Medica 2025;50(14):3951-3961
This study aims to investigate the in vitro mechanisms underlying the beneficial effects of puerarin on hepatic insulin resistance(IR) based on the carbohydrate response element-binding protein(ChREBP)/peroxisome proliferator-activated receptor(PPAR)α/PPARγ axis involved in glucose and lipid metabolism. An IR-HepG2 cell model was established by treating cells with dexamethasone for 48 h, and the cells were then treated with 10, 20, and 40 μmol·L~(-1) puerarin for 24 h. Glucose levels and output in the extracellular fluid were measured by the glucose oxidase method, while cell viability was assessed by the cell counting kit-8(CCK-8) assay. The adenosine triphosphate(ATP) content and glycogen synthesis were evaluated through chemiluminescence and periodic acid-Schiff staining, respectively. Western blot was employed to quantify the protein levels of forkhead box protein O1(FoxO1), phosphorylated forkhead box protein O1 [p-FoxO1(Ser256)], glucagon, phosphofructokinase, liver type(PFKL), pyruvate kinase L-R(PKLR), pyruvate dehydrogenase complex 1(PDHA1), insulin receptor substrate 2(IRS2), phosphatidylinositol 3-kinase p85(PI3KR1), phosphorylated protein kinase B [p-Akt(Thr308)], glycogen synthase(GYS), glycogen phosphorylase, liver type(PYGL), adiponectin(ADPN), ChREBP, PPARα, and PPARγ. Additionally, the protein levels of acetyl-CoA carboxylase 1(ACC1), phosphorylated ATP citrate lyase [p-ACLY(Ser455)], sterol regulatory element binding protein 1c(SREBP-1c), peroxisome proliferator-activated receptor gamma coactivator 1α(PGC1α), carnitine palmitoyltransferase 1α(CPT1α), and glucagon receptor(GCGR) were also determined. Immunofluorescence was employed to visualize the expression and nuclear location of ChREBP/PPARα/PPARγ. Furthermore, quantitative PCR with the antagonists GW6471 and GW9662 was employed to assess Pparα, Pparγ, and Chrebp. The findings indicated that puerarin effectively reduced both the glucose level and glucose output in the extracellular fluid of IR-HepG2 cells without obvious effect on the cell viability, and it increased intracellular glycogen and ATP levels. Puerarin down-regulated the protein levels of FoxO1 and glucagon while up-regulating the protein levels of p-FoxO1(Ser256), PFKL, PKLR, PDHA1, IRS2, PI3KR1, p-Akt(Thr308), GYS, PYGL, ADPN, ACC1, SREBP-1c, p-ACLY(Ser455), PGC1α, CPT1α, and GCGR in IR-HepG2 cells. Furthermore, puerarin up-regulated both the mRNA and protein levels of ChREBP, PPARα, and PPARγ and promoted the translocation into the nucleus. GW6471 was observed to down-regulate the expression of Pparα while up-regulating the expression of Chrebp and Pparγ. GW9662 down-regulated the expression of Pparγ while up-regulating the expression of Pparα, with no significant effect on Chrebp. In summary, puerarin activated the hepatic ChREBP/PPARα/PPARγ axis, thereby coordinating the glucose and lipid metabolism, promoting the conversion of glucose to lipids to exert the blood glucose-lowering effect.
Isoflavones/pharmacology*
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Humans
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PPAR gamma/genetics*
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Hep G2 Cells
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Glucose/metabolism*
;
Lipid Metabolism/drug effects*
;
PPAR alpha/genetics*
;
Liver/drug effects*
;
Basic Helix-Loop-Helix Leucine Zipper Transcription Factors/genetics*
;
Insulin Resistance
6.Hypoglycemic effect and mechanism of berberine in vitro based on regulation of BMAL1:CLOCK complex involved in hepatic glycolysis, glucose oxidation a nd gluconeogenesis to improve energy metabolism.
Zhong-Hua XU ; Li-Ke YAN ; Wei-Hua LIU ; Can CUI ; Han-Yue XIAO ; Hui-Ping LI ; Jun TU
China Journal of Chinese Materia Medica 2025;50(15):4293-4303
This paper aims to investigate the hypoglycemic effect and mechanism of berberine in improving energy metabolism based on the multi-pathway regulation of brain and muscle aromatic hydrocarbon receptor nuclear translocal protein 1(BMAL1): cyclin kaput complex of day-night spontaneous output cyclin kaput(CLOCK). The dexamethasone-induced hepatic insulin resistance(IR) HepG2 cell model was used; 0.5, 1, 5, 10, 20 μmol·L~(-1) berberine were administered at 15, 18, 21, 24, 30, 36 h. The time-dose effect of glucose content in extracellular fluid was detected by glucose oxidase method. The optimal dosage and time of berberine were determined for the follow-up study. Glucose oxidase method and chemiluminescence method were respectively performed to detect hepatic glucose output and relative content of ATP in cells; Ca~(2+), reactive oxygen species(ROS), mitochondrial structure and membrane potential were detected by fluorescent probes. Moreover, ultraviolet colorimetry method was used to detect the liver type of pyruvate kinase(L-PK) and phosphoenol pyruvate carboxykinase(PEPCK). In addition, pyruvate dehydrogenase E1 subunit α1(PDHA1), phosphate fructocrine-liver type(PFKL), forkhead box protein O1(FoxO1), peroxisome proliferator-activated receptor gamma co-activator 1α(PGC1α), glucose-6-phosphatase(G6Pase), glucagon, phosphorylated nuclear factor-red blood cell 2-related factor 2(p-Nrf2)(Ser40), heme oxygenase 1(HO-1), NAD(P)H quinone oxidoreductase 1(NQO1), fibroblast growth factor 21(FGF21), uncoupled protein(UCP) 1 and UCP2 were detected by Western blot. BMAL1:CLOCK complex was detected by immunofluorescence double-staining method, combined with small molecule inhibitor CLK8. Western blot was used to detect PDHA1, PFKL, FoxO1, PGC1α, G6Pase, glucagon, Nrf2, HO-1, NQO1, FGF21, UCP1 and UCP2 in the CLK8 group. The results showed that berberine downregulated the glucose content in extracellular fluid in IR-HepG2 cells in a time-and dose-dependent manner. Moreover, berberine inhibited hepatic glucose output and reduced intracellular Ca~(2+) and ROS whereas elevated JC-1 membrane potential and improved mitochondrial structure to enhance ATP production. In addition, berberine upregulated the rate-limiting enzymes such as PFKL, L-PK and PDHA1 to promote glycolysis and aerobic oxidation but also downregulated PGC1α, FoxO1, G6Pase, PEPCK and glucagon to inhibit hepatic gluconeogenesis. Berberine not only upregulated p-Nrf2(Ser40), HO-1 and NQO1 to enhance antioxidant capacity but also upregulated FGF21, UCP1 and UCP2 to promote energy metabolism. Moreover, berberine increased BMAL1, CLOCK and nuclear BMAL1:CLOCK complex whereas CLK8 reduced the nuclear BMAL1:CLOCK complex. Finally, CLK8 decreased PDHA1, PFKL, Nrf2, HO-1, NQO1, FGF21, UCP1, UCP2 and increased FoxO1, PGC1α, G6Pase and glucagon compared with the 20 μmol·L~(-1) berberine group. BMAL1:CLOCK complex inhibited gluconeogenesis, promoted glycolysis and glucose aerobic oxidation pathways, improved the reduction status within mitochondria, protected mitochondrial structure and function, increased ATP energy storage and promoted energy consumption in IR-HepG2 cells. These results suggested that berberine mediated BMAL1:CLOCK complex to coordinate the regulation of hepatic IR cells to improve energy metabolism in vitro.
Humans
;
Berberine/pharmacology*
;
Gluconeogenesis/drug effects*
;
Hep G2 Cells
;
Glucose/metabolism*
;
Liver/drug effects*
;
Energy Metabolism/drug effects*
;
Hypoglycemic Agents/pharmacology*
;
ARNTL Transcription Factors/genetics*
;
Glycolysis/drug effects*
;
Oxidation-Reduction/drug effects*
7.Research on the anti-hepatocellular carcinoma activity and mechanisms of glycyrrhetinic acid derivatives
Xu-xin CUI ; Wen-ping CUI ; Yan-xing BI ; Fan CHENG ; Yu-ning LI ; Bao-lai ZHANG ; Quan-yi ZHAO ; Xiao-lai YANG
Chinese Pharmacological Bulletin 2025;41(11):2150-2157
Aim To design and synthesize a series of glycyrrhetinic acid derivatives by using glycyrrhetinic acid as the parent nucleus,screen their antitumor activ-ities,and investigate the in vitro and in vivo antitumor effects and mechanisms of the most active compound.Methods MTT assay was used to screen for the com-pound with the most potent antitumor activity.MTT as-say,wound healing assay,colony formation assay and Transwell migration assay were used to evaluate the effects of the compound on tumor cell viability and mi-gration.Flow cytometry was employed to assess the im-pact of the compound on tumor cell cycle progression and apoptosis.Western blot was conducted to verify the effects on the expression of pro-apoptotic proteins Bax,caspase-3 and cleaved caspase-3.A mouse model of hepatocellular carcinoma ascites tumor was estab-lished to examine the antitumor effects of the compound in vivo.Results Compound C22 was identified as having the most significant inhibitory effect on hepato-cellular carcinoma cells.C22 inhibited the viability and migration of hepatocellular carcinoma cells in a time and concentration-dependent manner.C22 upreg-ulated the expression of pro-apoptotic proteins Bax,caspase-3 and cleaved caspase-3 in hepatocellular car-cinoma cells,induced apoptosis,and arrested the cell cycle in the G0/G1 and S phases.C22 significantly re-duced the growth of mouse hepatocellular carcinoma as-cites tumors and prolonged survival.Conclusion Glycyrrhetinic acid derivative C22 significantly inhibits the viability and migration of hepatocellular carcinoma cells in vitro and in vivo,and induces cell cycle arrest and apoptosis.
8.Study on the effectiveness and safety of a novel intravascular shock wave balloon for pre-treatment of severe coronary artery calcification lesions
Rui-tao ZHANG ; Zhen-yu TIAN ; Yong ZENG ; Guo-sheng FU ; Li XU ; Jian LIU ; Jian-ping LI ; Zhi-hui ZHANG ; Xin-qun HU ; Xiang CHENG ; Wen LU ; Ming CUI ; Yi-da TANG
Chinese Journal of Interventional Cardiology 2025;33(2):61-70
Objective To evaluate the efficacy and safety of a novel intravascular lithotripsy(IVL)balloon—Vesscrack shockwave balloon—for vascular preparation before stent implantation in patients with severe coronary artery calcification(CAC).Methods This was a prospective,single-arm,multicenter study conducted in China from June 2022 to October 2022.Patients with severe CAC were treated with the Vesscrack shockwave balloon for lesion preparation,followed by drug-eluting stent(DES)implantation.Of these,33 patients underwent optical coherence tomography(OCT).The primary endpoint was procedural success,defined as successful stent implantation with residual stenosis≤30%and the absence of in-hospital major adverse events,including cardiac death,target vessel-related myocardial infarction,or target lesion revascularization.Results A total of 170 patients[mean age:(65.9±7.9)years,116 males]were enrolled.After treatment with IVL and DES,the minimum lumen diameter increased significantly compared to baseline[(2.34±0.40)mm vs.(0.95±0.33)mm,P<0.001],the degree of stenosis was significantly reduced[(13.24±6.60)%vs.(65.18±10.59)%,P<0.001].Procedural success was achieved in 100%of cases,and device success was 98.8%.The 30-day patient-related cardiovascular clinical composite endpoint(POCE)rate was 0.0,with no target lesion failure,no confirmed or potential thrombotic events were observed.The shockwave energy generator demonstrated excellent stability and ease of use.Among the 33 patients assessed with OCT,after IVL intervention,the maximum calcified area of the lumen[(3.51±1.51)mm2 vs.(2.85±1.80)mm2,P<0.001],and the minimum lumen area within the target lesion[(3.08±1.04)mm2 vs.(2.02±0.75)mm2,P<0.001],and after DES intervention,the luminal area of the largest calcified site[(6.59±1.64)mm2 vs.(2.85±1.80)mm2,P<0.001]and the minimum luminal area within the target lesion[(6.19±1.45)mm2 vs.(2.02±0.75)mm2,P<0.001]were significantly increased,and the differences were statistically significant.Conclusions The Vesscrack shockwave balloon is effective and safe for vascular preparation in patients with severe CAC prior to stent implantation.It achieves significant calcified plaque modification,high procedural success rates,and minimal complications.
9.Automatic recognition and segmentation of brachial plexus in ultrasonic images based on deep learning
Duo SHI ; Han ZHANG ; Peipei LIU ; Ruichao ZHANG ; Qingyu LIU ; Hao SUN ; Xiaofang FU ; Mengjie DOU ; Junpu HU ; Changqin SUN ; Keyan LI ; Jianqiu HU ; Guangquan ZHOU ; Ligang CUI ; Ping ZHOU ; Faqin LYU
Chinese Journal of Ultrasonography 2025;34(9):737-744
Objective:To propose a deep learning(DL)-based ultrasound imaging auxiliary tool for automatic segmentation and recognition of the brachial plexus(BP),and to enhance the accuracy and safety of clinical procedures.Methods:It was a multicenter study that collected 773 healthy subjects from Peking University Third Hospital and its branch campuses,the Third Medical Center of the Chinese PLA General Hospital,and Shanghai Eighth People's Hospital between August 2024 and February 2025. Brachial plexus(BP)images in the interscalene groove were captured used high-frequency ultrasound by senior sonographers,a dataset comprising 1 289 standardized images were constructed and the improved model(CHA-TransUNet)was trained. The test set was input into 6 different models(CHA-TransUNet,R50-Unet,TransUnet,SegFormer,SwinUnet,MISSFormer)for segmentation. Segmentation accuracy was evaluated using metrics including the Dice similarity coefficient(DSC),95% Hausdorff distance(HD95)and mean intersection over union(mIoU),and was compared with the segmentation results of 3 ultrasound physicians with varying experience levels(junior physicians and senior physicians)to validate the model's segmentation efficacy.Results:The CHA-TransUNet model established based on a dataset of 1 289 standardized images achieved segmentation results for the BP with a DSC of 90.15%,mIoU of 91.02%,and HD95 of 8.08. Its accuracy was higher than other mainstream models(DSC:90.15% vs. 87.60%,87.77%,81.35%,84.78%,84.55%),significantly better than junior physicians(DSC:90.15% vs. 68.73%, Z=-127.76, P<0.001),and approached the level of senior physician(DSC:90.15% vs. 86.15%, Z=-31.33, P=0.549). The model demonstrated superior boundary recognition in complex anatomical structures(e.g.,C6/C7 nerve roots)compared to ultrasound physicians(junior and senior)(HD95:8.08 vs. 26.34,17.44,56.80). Conclusions:This study proposes an analysis model for BP ultrasound images,CHA-TransUNet. This model achieves segmentation and recognition of the BP with relatively complex pathways and structures. The model exhibits high accuracy and stability,outperforming current mainstream network models and junior physicians while approaching the performance level of senior physicians. It assists junior physicians or trainees in more accurately identifying and localizing the BP.
10.The therapeutic effects of newly formulated Tadalafil tablets on rats with pathological cardiac hypertrophy through regulation of NF-κB signaling pathway
Xue-di ZHANG ; Ye-ding SONG ; Li-mei LI ; Hao-yan CHEN ; Hua-sui CUI ; Zheng-gang ZHAO ; Zi-jian ZHAO ; Yun-ping MU ; Fang-hong LI
Chinese Pharmacological Bulletin 2025;41(8):1485-1492
Aim To investigate the therapeutic effects of a newly developed Tadalafil tablets on pathological myocardial hypertrophy induced by abdominal aortic constriction(AAC)in rats,as well as its influence on the activation of the NF-κB signaling pathway in myo-cardial cells.Methods SD rats were randomly divid-ed into 4 groups:the sham operation group(Sham),the model group(AAC),the tadalafil new tablet treat-ment group(N-Tad,5 mg·kg-1),and the positive control drug treatment group(Cialis,10 mg·kg-1g).The AAC model group and treatment group rats under-went blunt dissection and constrictive ligation of the abdominal aorta at the left renal artery branch point during surgery,while the Sham group rats only had their arteries separated without any constrictive liga-tion.Rats in the treatment groups received either N-Tad or Cialis via gavage three days after modeling,while rats in the sham group and the model group re-ceived physiological saline daily for 8 weeks.Small an-imal ultra-high-resolution echocardiography and hemo-dynamic assessment were applied to evaluate left ven-tricular function in each group of rats,and the calcula-tion of the left ventricular mass index was conducted.By employing Western blot and RT-PCR.we assessed the impact of this treatment on the expression of the hy-pertrophy factor atrial natriuretic peptide(ANP),phosphorylated NF-κB p65 protein(p-NF-κB p65),and phosphorylated IκB-α in the left heart tissue of rats and in H9c2 cardiomyocytes.Results Compared to the Sham group,the AAC rats exhibited a significant decrease in left heart function,an increase in left ven-tricular mass index,and a notable increase in ANP and p-p65 expression in the left heart tissue(P<0.05).Both N-Tad and Cialis treatments could significantly enhance left ventricular function,decrease left ventric-ular mass index,and inhibit the expression of ANP and phosphorylated NF-κB p65 in rats with myocardial hy-pertrophy(P<0.05).Notably,the therapeutic effect of low-dose N-Tad was comparable to that of high-dose Cialis.At the cellular level,Tadalafil significantly in-hibited the activation of the NF-κB signaling pathway and reduced the expression of associated proteins in H9c2 cardiomyocytes.Conclusions N-Tad can sig-nificantly inhibit p65 and IκB-α phosphorylation,and the activation of the NF-κB signaling pathway,reduce ANP expression,and improve pathological myocardial hypertrophy,as well as mitigate left heart function damage caused by abdominal aortic constriction.

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