1.Hypoxia-inducible factor-1α inhibitor LW6 inhibits myocardial ferroptosis and ameliorates myocardial injury of sepsis in rats
Xiaoyue WANG ; Youcheng ZENG ; Yixin ZHANG ; Guodong CAO ; Ming HUANG ; Liang LIN ; Pengqiang YANG ; Qinghong CHENG
Chinese Journal of Infection Control 2025;24(6):762-769
Objective To explore the effect of hypoxia-inducible factor-1α(HIF-1α)inhibitor LW6 on ferroptosis in septic cardiomyopathy rats.Methods Rat septic cardiomyopathy model was prepared using cecal ligation and puncture(CLP)method.Thirty-six specific pathogen-free(SPF)6-8 weeks male SD rats were randomly divided into the sham-operated group,CLP group,CLP+solvent group,LW6 group,ferrostatin-1(Fer-1)group,and LW6+Fer-1 group.The degree of myocardial damage in each group was evaluated through hematoxylin-eosin stai-ning and detection of lactate dehydrogenase and creatine kinase content in cardiac tissue.Myocardial mitochondrial damage was observed by transmission electron microscopy.Ferroptosis level was determined by detecting iron ion concentration,reduced glutathione,malondialdehyde,and reactive oxygen species.Protein expression levels of HIF-1α,solute carrier family 7 member 11(SLC7A11),and glutathione peroxidase 4(GPX4)in cardiac tissue were detected by Western blotting.Results Compared with the CLP group and the CLP+solvent group,the LW6 group could ameliorate myocardial damage,alleviate mitochondrial damage,inhibit ferroptosis-related indicators(all P<0.05),reduce HIF-1α protein expression levels(P<0.05),and enhance SLC7A11 and GPX4 protein expression levels(both P<0.05).Conclusion LW6 decreases HIF-1α expression and ferroptosis levels through the SLC7A11/GPX4 pathway,and ameliorates sepsis-induced cardiomyopathy.
2.Textual Research of Arcane Essentials from the Imperial Library in Citing and Recording Classical Medical Books Proofread in Song Dynasty During Comparative Proofreading
Ruqi TAN ; Qinghong MENG ; Wenfei LI ; Zelin CHEN ; Feng ZENG
Journal of Guangzhou University of Traditional Chinese Medicine 2025;42(5):1279-1283
The contents of Zhang Zhongjing's works Treatise on Exogenous Febrile Disease,the Jade Case Classic of the Golden Cabinet,and Essentials from the Golden Cabinet(collectively known as the three classical medical books of Zhang Zhongjing),as well as Important Formulas Worth A Thousand Gold Pieces and Supplement to"Important Formulas Worth a Thousand Gold Pieces",which were cited in the Arcane Essentials from the Imperial Library(Wai Tai Mi Yao Fang)during comparative proofreading were analyzed.Wai Tai Mi Yao Fang is a book edited and public by the Bureau of Revising Medical Books in Northern Song Dynasty.The contents in the collation records for Wai Tai Mi Yao Fang were compared to the original text of the above five classical medical books proofread in Song Dynasty.The results showed that:(1)the ministers of Song Dynasty which were in charge of the proofreading mainly took the previously-proofread books as references,and widely referenced to the other editions of Wai Tai Mi Yao Fang,which reflected the proofreading principles of the Bureau of Revising Medical Books in Northern Song Dynasty,i.e.,collecting various editions widely and then identifying similarities and differences;(2)the analysis of the collation record in Zhongjing's Treatise on Exogenous Febrile Disease by using comparative proofreading method plus reasoning proofreading method showed that,the medical knowledge of the ministers of Song Dynasty had some limitations;(3)some of the medical terminology used by the ministers of Song Dynasty in their collation record influenced the naming convention of later generations of medical science,for example,making the Piyue Pills be the synonym of the Maziren Wan(Maren Wan).The results indicated that the complexity and uncertainty of the textual content of the popular edition of Wai Tai Mi Yao Fang should deserve the attention,and their influences on the development of later generations'scholarship need further in-depth study.
3.New cultural development boosts high-quality growth of integrated traditional Chinese and western medicine hospitals:practice and research:a case study of Ruikang hospital of Guangxi university of Chinese medicine
Hongjun GAO ; Guoxiang WANG ; Ze XIA ; Huafang QIN ; Qinghong ZENG
Modern Hospital 2025;25(4):521-523
Taking Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine as an example,this paper sum-marizes the important role and practical experience of new cultural development in promoting the hospital's high-quality growth.It explores pathways for new cultural development to facilitate the high-quality advancement of integrated traditional Chinese and Western medicine hospitals,aiming to provide valuable practical guidance and theoretical support for such hospitals in the context of the new era.
4.Hypoxia-inducible factor-1α inhibitor LW6 inhibits myocardial ferroptosis and ameliorates myocardial injury of sepsis in rats
Xiaoyue WANG ; Youcheng ZENG ; Yixin ZHANG ; Guodong CAO ; Ming HUANG ; Liang LIN ; Pengqiang YANG ; Qinghong CHENG
Chinese Journal of Infection Control 2025;24(6):762-769
Objective To explore the effect of hypoxia-inducible factor-1α(HIF-1α)inhibitor LW6 on ferroptosis in septic cardiomyopathy rats.Methods Rat septic cardiomyopathy model was prepared using cecal ligation and puncture(CLP)method.Thirty-six specific pathogen-free(SPF)6-8 weeks male SD rats were randomly divided into the sham-operated group,CLP group,CLP+solvent group,LW6 group,ferrostatin-1(Fer-1)group,and LW6+Fer-1 group.The degree of myocardial damage in each group was evaluated through hematoxylin-eosin stai-ning and detection of lactate dehydrogenase and creatine kinase content in cardiac tissue.Myocardial mitochondrial damage was observed by transmission electron microscopy.Ferroptosis level was determined by detecting iron ion concentration,reduced glutathione,malondialdehyde,and reactive oxygen species.Protein expression levels of HIF-1α,solute carrier family 7 member 11(SLC7A11),and glutathione peroxidase 4(GPX4)in cardiac tissue were detected by Western blotting.Results Compared with the CLP group and the CLP+solvent group,the LW6 group could ameliorate myocardial damage,alleviate mitochondrial damage,inhibit ferroptosis-related indicators(all P<0.05),reduce HIF-1α protein expression levels(P<0.05),and enhance SLC7A11 and GPX4 protein expression levels(both P<0.05).Conclusion LW6 decreases HIF-1α expression and ferroptosis levels through the SLC7A11/GPX4 pathway,and ameliorates sepsis-induced cardiomyopathy.
5.New cultural development boosts high-quality growth of integrated traditional Chinese and western medicine hospitals:practice and research:a case study of Ruikang hospital of Guangxi university of Chinese medicine
Hongjun GAO ; Guoxiang WANG ; Ze XIA ; Huafang QIN ; Qinghong ZENG
Modern Hospital 2025;25(4):521-523
Taking Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine as an example,this paper sum-marizes the important role and practical experience of new cultural development in promoting the hospital's high-quality growth.It explores pathways for new cultural development to facilitate the high-quality advancement of integrated traditional Chinese and Western medicine hospitals,aiming to provide valuable practical guidance and theoretical support for such hospitals in the context of the new era.
6.Andrographolide regulates SLC7A11/GPX4 axis in ferroptosis to attenuate intestinal injury in sepsis
Ming HUANG ; Yixin ZHANG ; Guodong CAO ; Youcheng ZENG ; Liang LIN ; Xiaoyue WANG ; Qinghong CHENG
Acta Universitatis Medicinalis Anhui 2023;58(12):2094-2100
Objective To investigate whether Andrographolide(AG)can alleviate intestinal injury in sepsis by ac-tivating the SLC7A11/GPX4 axis in ferroptosis.Methods Forty rats were randomly divided into sham group(sham group),sepsis group(CLP group),AG low,medium and high dose groups(5,10 and 20 mg/kg).HE staining was used to observe the pathological changes of Intestinal tract.ELISA method was used to determine Inter-leukin 6(IL-6),tumour necrosis factor α(TNF-α),intestinal fatty acid binding protein(I-FABP),D-lactate content.The mechanism of ferroptosis was explored with AG high dose group(AG20 group),forty rats were ran-domly divided into sham group,CLP group,ferroptosis inhibitor(Fer-1)group,AG20+Fer-1 group.HE staining and transmission electron microscopy were used to observe the pathological changes of Intestinal tract.The kits were used to determine oxidative stress MDA,GSH levels and Fe3+content.Western blot was used to detect the protein levels of solute carrier family 7 member 11(SLC7A11),glutathione peroxidase 4(GPX4),and ferritin heavy poly-peptide 1(FTH-1).Results Compared with the sham group,the CLP group showed severe morphological damage to the small intestine,with significantly higher levels of inflammation,I-FABP and D-lactate(all P<0.05),the AG group reversed these changes in a concentration-dependent manner(all P<0.05).Compared with the CLP group,the AG20 and Fer-1 groups showed improved pathological damage to the small intestine,with lower levels of MDA and Fe3+and higher levels of GSH,SLC7A11,GPX4 and FTH-1 protein expression increased(all P<0.05),and pathological injury and oxidative stress were reduced in the AG20+Fer-1 group,and SLC7A11,GPX4 and FTH-1 protein expression increased more significantly(all P<0.05).Conclusion The mechanism by which AG attenuates intestinal injury in sepsis may be related to SLC7A11/GPX4 axis activation in ferroptosis.
7.Effect of poly adenosine diphosphate ribose polymerase inhibitor on the radiosensitivity of breast cancer cells and underlying mechanism
Qiuhua DUAN ; Yue FENG ; Lijun HU ; Jianlin WANG ; Hongwei ZENG ; Fei SUN ; Qinghong MENG ; Mengyun ZHOU ; Jingping YU
Chinese Journal of Radiological Medicine and Protection 2023;43(12):945-953
Objective:To study the effects of poly adenosine diphosphate ribose polymerase (PARP) inhibitors niraparib and pamiparib on the radiosensitivity of breast cancer cell lines MCF-7 and MDA-MB-436, and to explore its mechanism.Methods:MCF-7 and MDA-MB-436 cells were divided into control group, niraparib group, pamiparib group, radiation group, combination group treated with niraparib and radiation, and combination group treated with pamiparib and radiation, respectively. The effects of drugs on cell proliferation and radiosensitivity were measured by CCK-8 assay and colony formation assay, respectively. The effect of drugs combined with radiation on cell cycle and apoptosis were detected by flow cytometry. Immunofluorescence method was used to detect the changes of γ-H2AX focal number of cells. The expressions of FANCG, Bax and Bcl-2 mRNA and protein were detected by qPCR and Western blot, respectively.Results:Both niraparib and pamiparib inhibited the proliferation of breast cancer cells MCF-7 and MDA-MB-436 in a time-dose dependent manner. With the increase of irradiation dose, D0, Dq, SF2 value of MCF-7 and MDA-MB-436 cells decreased, and SER D0 and SER Dq value increased. Compared with control group, the percentages of cells in G 2/M phase were increased ( tMCF-7=41.66, 44.08, P<0.05; t436=24.69, 18.91, P<0.05), the percentage of cells in G 0/G 1 phase were decreased ( tMCF-7=8.67, 29.61, P<0.05; t436=26.39, 29.12, P<0.05), and the cell apoptosis rate was significantly increased ( tMCF-7=11.17, 11.71, P<0.05; t436=42.68, 15.89, P<0.05) in the combination group. Compared with control group, the number of γ-H2AX foci of MCF-7 cells in the radiation group and combination group treated with niraparib and radiation increased significantly at 2 h after irradiation ( t=8.89, 21.72, P<0.05). At 24 h after irradiation, the number of γ-H2AX foci basically returned to normal level in the radiation group but remained at a higher level in the combination group ( t=8.82, P<0.05). Compared with control group, the expressions of FANCG and Bcl-2 mRNA decreased ( tFANCG=14.07, P<0.05; tBcl-2=29.21, P<0.05), the expression of Bax mRNA increased ( t=8.90, P<0.05), and the expression of FANCG and Bcl-2 proteins decreased ( tFANCG=7.09, P<0.05; tBcl-2=10.24, P<0.05), while the expression of Bax protein increased ( t=2.90, P<0.05) in the combination group. Conclusions:PARP inhibitors niraparib and pamiparib can increase the radiosensitivity of breast cancer MCF-7 and MDA-MB-436 cells probably through down-regulating the expression of FANCG in FA-BRCA pathway, up-regulating apoptosis-related genes and inhibiting DNA damage repair.
8.H2S attenuates sepsis-induced cardiomyopathy by regulating the Xc -/ GPX4 pathway in ferroptosis
Guodong Cao ; Feifei Deng ; Yuhan Zhao ; Youcheng Zeng ; Liang Lin ; Lichun Guo ; Xiqing Luo ; Yixin Zhang ; Ming Huang ; Qinghong Cheng
Acta Universitatis Medicinalis Anhui 2022;57(12):1959-1964
Objective :
To investigate whether NaHS,a hydrogen sulfide donor,can improve myocardial injury in sepsis by inhibiting oxidative stress and activating the Xc -/ GPX4 signaling pathway in ferroptosis.
Methods :
Lipopolysacc-haride(LPS) induced H9c2 in rat cardiomyocytes to form an in vitro model of myocardial injury in sep- sis,which was divided into Control group,LPS group and LPS + NaHS group.The kits were applied to detect the changes of cardiomyocyte viability,Fe2 + ,LDH and CK-MB,determine the levels of oxidative stress indexes GSH and MDA,detect the changes of cellular ROS and mitochondrial membrane potential levels by fluorescent probes, and detect the expression levels of ferroptosis regulatory proteins SLC7A11 and GPX4 by Western blot.
Results:
Compared with the Control group,H9c2 cell viability decreased,Fe2 + concentration increased ,GSH ,MDA and ROS levels increased,mitochondrial JC-1 monomer increased ,expression levels of ferroptosis regulatory proteins SLC7A11 and GPX4 decreased,and cell damage increased after LPS stimulation (P<0. 05) .Compared with the LPS group,NaHS attenuated LPS-induced H9c2 cell injury and elevated Fe2 + concentration,decreased the level of LPS-induced oxidative stress in H9c2 cells ,and increased the expression levels of ferroptosis regulatory proteins SLC7A11 and GPX4 (P<0. 05 ) .
Conclusion
The mechanism by which NaHS attenuates myocardial injury in sepsis may be related to the inhibition of oxidative stress and activation of the Xc -/ GPX4 signaling pathway in fer- roptosis.
9.Predictive value of serum lipoprotein-associated phospholipase A 2for the outcome in patients with large atherosclerotic stroke
Shanhua YU ; Jiandong JIANG ; Qinghong ZENG ; Haojiang ZHANG
International Journal of Cerebrovascular Diseases 2018;26(8):566-570
Objective To investigate the predictive value of serum lipoprotein-associated phospholipase A2(Lp-PLA2) for the outcomes in patients with large atherosclerotic stroke (LAA). Methods Patients with LAA admitted to the Second People's Hospital of Lianyungang from March 2015 to January 2018 were enrolled retrospectively. The outcomes were evaluated by the modified Rankin Scale at 90 d after onset, 0-2 was defined as good outcome. Multivariate logistic regression analysis was used to identify the independent risk factors for poor outcome. The receiver operating characteristic (ROC) curve was used to analyze the predictive value of Lp-PLA2for outcomes. Results A total of 121 patients with LAA were enrolled, including 64 males (52.9%) and 57 females (47.1%), aged 63.5 ±9.5 years; 72 (59.5%) had good outcome and 49 (40.5%) had poor outcome. The differences were statistically significant in the proportion of diabetic patients (26.4% vs.65.3%; χ2=18.110, P<0.001) and glycated hemoglobin ( 6.39% ±2.33% vs. 7.58% ±3.12%; t=1.663, P=0.041), baseline National Institutes of Health Stroke Scale (NIHSS) score (5 [3-6] vs.10[7 -14]; Z= -7.498, P< 0.001), and Lp-PLA2(194.7 ±84.3 μg/L vs.291.4 ± 82.6 μg/L; t= -5.447, P<0.001) between the good outcome group and the poor outcome group. Multivariate logistic regression analysis showed that diabetes ( odds ratio [ OR] 1.215, 95% confidence interval [CI] 1.102-1.601; P=0.046), glycosylated hemoglobin ( OR 2.275, 95% CI 1.065-4.865; P=0.037), baseline NIHSS score ( OR 2.113, 95% CI 1.585-2.734; P=0.015), and Lp-PLA2(OR 5.183, 95% CI 3.203-8.134; P<0.001) were the independent risk factors for poor outcomes in patients with LAA. ROC analysis showed that the area under the curve of Lp-PLA2predicting poor outcome was 0 .792 (95% CI 0.713-0.872); the optimal cut-off value was 260.5 μg/L, the sensitivity for predicting poor outcome was 79.6%, and the specificity was 84.7%. Conclusion The higher serum Lp-PLA2level is an independent predictive factor for poor outcome in patients with LAA. It has a higher predictive value for poor outcome.
10.Radial artery pedigreed conjoined perforator flap repair cross-joint long-shaped skin and soft tissue defects in fingers
Jiyong JIANG ; Ben'gang QIN ; Qinghong WANG ; Deqing ZENG ; Chunbin YU ; Wenjing LU ; Shaokai ZHONG ; Pei LI
Chinese Journal of Microsurgery 2018;41(1):44-48
Objective To explore the method and clinical effect of radial artery pedigreed conjoined perfora-tor flap for repairing cross-joint long-shaped skin and soft tissue defects in fingers. Methods From June, 2015 to June,2017,six patients with cross-joint long-shaped skin and soft tissue defects of the fingers were treated with radial artery pedigreed conjoined flap which axis was the artery superficial line, and carried two radial artery perforators, in order to enlarge flap cut range to repair.The size of flaps ranged from 3.0 cm ×6.0 cm to 3.5 cm ×7.5 cm.The donor site was directly sutured. After operation, all patients were followed up for 3 to 8 months. All the necessary parts are observed, such as the flaps appearances, textures, the donor sites, checked the flap sensation, activity functions of the fingers. Results Six cases of flap all survived.The wounds healed well(phase I),and all patients were followed up for 3 to 8 months, with an average of 5 months. All the flaps do not obviously bloat, the textures were soft,the colors are normal,the appearances of flaps were similar to recipient sites. The donor sites healed well only with linear scars. Conclusion Using radial artery pedigreed conjoined perforator flap to repair cross-joint long-shaped skins and soft tissue defects in fingers that it not only can enlarge the cut range but also cut conveniently, the textures are close to recipient sites.Therefore,it is an ideal repair way.


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