1.The function and mechanism of long non-coding RNA FGD5-AS1 in regulating the miR-142-3p/PDK1 signaling axis in gastric cancer
Huazhi LI ; Haitao SUN ; Guang CAO ; Yajing ZHANG
Chinese Journal of General Surgery 2025;34(6):1209-1218
Background and Aims:Studies have shown that the long non-coding RNA(lncRNA)FGD5-AS1 functions as an oncogene in gastric cancer(GC).Our previous bioinformatics analysis revealed potential binding sites between FGD5-AS1 and microRNA-142-3p(miR-142-3p),as well as between miR-142-3p and pyruvate dehydrogenase kinase 1(PDK1).Therefore,this study aimed to investigate the expression and functional role of the FGD5-AS1/miR-142-3p/PDK1 axis in GC cells.Methods:Dual-luciferase reporter assays were used to verify the targeting relationships between FGD5-AS1 and miR-142-3p,and between miR-142-3p and PDK1.qRT-PCR was conducted to measure the expression levels of FGD5-AS1,miR-142-3p,and PDK1 in GC tissues.A knockdown model of FGD5-AS1(sh-FGD5-AS1)and an miR-142-3p inhibitor were constructed and transfected,alone or in combination,into BGC823 GC cells.Cellular behaviors,including proliferation(CCK8,EdU),apoptosis(flow cytometry),migration,and invasion(Transwell assays),were assessed,along with related protein expression(Western blot).A subcutaneous xenograft model in nude mice was used to evaluate the effect of FGD5-AS1 on tumor growth in vivo.Results:The dual-luciferase assays demonstrated that miR-142-3p mimics significantly reduced the luciferase activity of wild-type(WT)FGD5-AS1 and PDK1 reporters(both P<0.05),but had no effect on mutant(MUT)reporters,confirming a direct binding relationship.Knockdown of FGD5-AS1 led to upregulation of miR-142-3p and downregulation of PDK1 in GC cells,with reduced proliferation,migration,and invasion,and enhanced apoptosis(all P<0.05);these effects were reversed by the miR-142-3p inhibitor.In vivo,FGD5-AS1 knockdown significantly inhibited tumor growth in nude mice and decreased Ki-67 and PDK1 expression in tumor tissues(all P<0.05).Conclusion:FGD5-AS1 may act as a ceRNA that sponges miR-142-3p,thereby relieving its suppression on PDK1,and promoting GC cell proliferation and invasion as well as tumor progression.The FGD5-AS1/miR-142-3p/PDK1 axis plays a critical role in the development of GC and may serve as a potential therapeutic target.
2.Visualization analysis of global research hotspots on exosomes in ophthalmology using CiteSpace and VOSviewer
Ying GAO ; Xiangxia LUO ; Huazhi ZHANG ; Lei ZHANG ; Juan LING ; Jiayuan ZHUANG
International Eye Science 2025;25(4):565-572
AIM: To investigate the global research status, hotspots, and trends of exosome studies in ophthalmology, providing a theoretical foundation and constructive references for future research, and promoting in-depth development in this field.METHODS: Relevant literature on exosomes in ophthalmology published up to May 20, 2024, was retrieved from the China National Knowledge Infrastructure(CNKI), Web of Science Core Collection, and PubMed databases. Visual analyses of publication countries, institutions, authors, high-frequency keywords, burst keywords, and timelines were performed using CiteSpace 6.3.R1 and VOSviewer software.RESULTS: A total of 37 Chinese articles and 548 English articles were included. The top five countries in terms of publication volume were the United States(130 articles), China(80 articles), South Korea(24 articles), the United Kingdom(20 articles), and Japan(19 articles). The leading foreign institutions were the University of California System, Duke University, and Harvard University, while the top domestic institutions were Qingdao University, the Department of Ophthalmology at the First Affiliated Hospital of Jinan University, and the School of Physical Education and Sports Science at Beijing Normal University. Analysis of Chinese and English high-frequency and burst keywords indicated that global research hotspots on exosomes in ophthalmology primarily focus on dry eye, extracellular vesicles, mesenchymal stem cells and their derived exosomes, ocular surface diseases, ocular surface inflammation, biomarkers, retinal protection, immune eye diseases, uveitis, degenerative eye diseases, macular degeneration, diabetic retinopathy, neovascularization, thyroid-associated ophthalmopathy, and glaucoma, while English high-frequency words mainly were dry eye, dry eye disease, delivery, regenerative medicine, uveal melanoma, protein, and transplantation. Research has evolved from initial basic biological studies to exploring the pathogenesis of ocular diseases and advancing toward novel diagnostic and therapeutic approaches.CONCLUSION: Over the past 5 a, research on exosomes in ophthalmology has grown rapidly. Exosomes, as novel biomarkers and potential therapeutic targets, have become central to studies on the pathogenesis and clinical applications of ophthalmic diseases. Their roles in the diagnosis, treatment, and prevention of these diseases represent promising directions for future research.
3.The function and mechanism of long non-coding RNA FGD5-AS1 in regulating the miR-142-3p/PDK1 signaling axis in gastric cancer
Huazhi LI ; Haitao SUN ; Guang CAO ; Yajing ZHANG
Chinese Journal of General Surgery 2025;34(6):1209-1218
Background and Aims:Studies have shown that the long non-coding RNA(lncRNA)FGD5-AS1 functions as an oncogene in gastric cancer(GC).Our previous bioinformatics analysis revealed potential binding sites between FGD5-AS1 and microRNA-142-3p(miR-142-3p),as well as between miR-142-3p and pyruvate dehydrogenase kinase 1(PDK1).Therefore,this study aimed to investigate the expression and functional role of the FGD5-AS1/miR-142-3p/PDK1 axis in GC cells.Methods:Dual-luciferase reporter assays were used to verify the targeting relationships between FGD5-AS1 and miR-142-3p,and between miR-142-3p and PDK1.qRT-PCR was conducted to measure the expression levels of FGD5-AS1,miR-142-3p,and PDK1 in GC tissues.A knockdown model of FGD5-AS1(sh-FGD5-AS1)and an miR-142-3p inhibitor were constructed and transfected,alone or in combination,into BGC823 GC cells.Cellular behaviors,including proliferation(CCK8,EdU),apoptosis(flow cytometry),migration,and invasion(Transwell assays),were assessed,along with related protein expression(Western blot).A subcutaneous xenograft model in nude mice was used to evaluate the effect of FGD5-AS1 on tumor growth in vivo.Results:The dual-luciferase assays demonstrated that miR-142-3p mimics significantly reduced the luciferase activity of wild-type(WT)FGD5-AS1 and PDK1 reporters(both P<0.05),but had no effect on mutant(MUT)reporters,confirming a direct binding relationship.Knockdown of FGD5-AS1 led to upregulation of miR-142-3p and downregulation of PDK1 in GC cells,with reduced proliferation,migration,and invasion,and enhanced apoptosis(all P<0.05);these effects were reversed by the miR-142-3p inhibitor.In vivo,FGD5-AS1 knockdown significantly inhibited tumor growth in nude mice and decreased Ki-67 and PDK1 expression in tumor tissues(all P<0.05).Conclusion:FGD5-AS1 may act as a ceRNA that sponges miR-142-3p,thereby relieving its suppression on PDK1,and promoting GC cell proliferation and invasion as well as tumor progression.The FGD5-AS1/miR-142-3p/PDK1 axis plays a critical role in the development of GC and may serve as a potential therapeutic target.
4.Relationship Between Signaling Pathway and Diabetic Retinopathy and Intervention of Traditional Chinese Medicine: A Review
Suzhen LIU ; Haodong YANG ; Huazhi ZHANG ; Jinning SUN ; Hui LIU
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(22):265-275
Diabetic retinopathy (DR) is one of the most common chronic microvascular complications of diabetes mellitus. It has a high rate of blindness, and the age of onset is gradually getting younger, which seriously affects the physical and mental health and quality of life of patients. The disease is retinal damage induced by diabetes mellitus, which is a kind of fundus disease with the main manifestations of fundus hemorrhage, hard exudation, microhemangioma, cotton-wool spots, neovascularization, etc. In traditional Chinese medicine (TCM), it is classified into the category of "diabetic cataracts" and other diseases. At present, there is no effective method to prevent the progress of the disease in modern medicine, so it is particularly important to choose a reasonable and effective intervention to prevent and treat DR. Studies have confirmed that TCM has unique advantages in the treatment of DR. It can use its advantages of multiple bioactive components, multiple targets, and multiple pathways to intervene in the development process of DR from various aspects. By searching for the relevant literature on the progress of the intervention of DR with TCM monomers and compounds, this paper mainly reviews the relevant research results of the treatment of DR with multiple signaling pathways such as phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt), nuclear factor kappa-B(NF-κB), p38 mitogen-activated protein kinase (p38 MAPK), nuclear factor erythroid 2-related factor (Nrf2)/hemeoxygenase-1 (HO-1), Hippo, advanced glycation end products (AGEs)/receptor for advanced glycation end products (RAGE), and Akt/glycogen synthase kinase-3β (GSK-3β), so as to provide more ideas and directions for the clinical prevention and treatment of DR.
5.Clinical observation of's stunt needling technique in the treatment of juvenile myopia.
Xinglan LI ; Huazhi ZHANG ; Tingzhuo ZHANG ; Bo YUAN ; Liang TIAN ; Fengfan ZHANG ; Yixin WANG ; Xiang QIAO ; Xiaozheng DU
Chinese Acupuncture & Moxibustion 2018;38(2):147-152
OBJECTIVETo compare the differences in the clinical therapeutic effects on juvenile myopia between's stunt needling technique and traditional even needling technique.
METHODSA total of 166 cases of mild juvenile myopia (diopter <-3.00D) were randomized into an observation group ('s stunt needling technique) and a control group (traditional even needling technique), 83 cases in each one (166 affected eyes). Taiyang (EX-HN 5), Fengchi (GB 20), Cuanzhu (BL 2), Hegu (LI 4) and Guangming (GB 37) were used in the two groups. In the observation group, theneedling technique was adopted at Taiyang (EX-HN 5), theneedling technique at Fengchi (GB 20) andneedling technique at Cuanzhu (BL 2). The traditional needling technique was used at Hegu (LI 4) and Guangming (GB 37). In the control group, traditional even needling technique was applied at all the acupoints. The treatment was given once every day, continuously for 6 times as one course. There was 1 day at interval. After treatment for 4 courses, the changes in visual acuity, diopter and axial length were observed before and after treatment. The therapeutic effects were evaluated.
RESULTSAfter treatment, the visual acuity of the naked eyes, and diopter were remarkably improved in the patients of the two groups (all<0.05). The improvements in the observation group were better than those in the control group (both<0.05). The axial length did not change in the two groups (both>0.05). The total effective rate was 78.3% (130/166) in the observation group, which was better than 57.8% (96/166) in the control group (<0.05). .
CONCLUSION 's stunt needling technique effectively improves the vision, rectifies the refractive error and delays the progression of myopia. The therapeutic effects of it are better than traditional even needling technique.
6.Effects of Hedysari Polysaccharide on Expressions of TSP-1 and PDGF-B in Retina of Diabetic Rats
Huazhi ZHANG ; Zhisheng JIN ; Ying LIU ; Ruiping JIE ; Jianmei ZHAO ; Yan GAO
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(3):38-42
Objective To observe the effects of Hedysari Polysaccharide (HPS) on the expressions of TSP-1 and PDGF-B in the retina of diabetic rats;To discuss the protective effect and possible mechanism on diabetic retinopathy. Methods The diabetic model was established by intraperitoneal injection of streptozotocin. 50 male SPF Wistar rats were randomly divided into 5 groups:model group, calcium dobesilate group, and HPS high-, medium-, and low-dose group, extra 10 rats were set as the normal group, 10 rats in each group. Each administration group was given relevant medicine for gavage, while model group and normal control group were given same amount NS for gavage, once a day for 8 weeks. The mRNA and protein expression of TSP-1 and PDGF-B were detected by qRT-PCR and immunohistochemistry. The retinal structure was observed by HE staining. Results HE staining showed that each layer of the retina of the model group was clear and complete, but the outer nucleus layer became looser, thinner and more disorderly, and the number of ganglion cells decreased slightly; the administration groups were improved markedly compared with the model group. Compared with the normal control group, the mRNA level and protein expression of retina TSP-1 on the model group dramatically dropped (P<0.01), and those of PDGF-B strikingly increased (P<0.01);Compared with the model group, the mRNA level and protein expression of retina TSP-1 on alladministration groups rose (P<0.05, P<0.01), and those of PDGF-B went down (P<0.01); Compared with all other administration groups, there was statistical significance in the mRNA level and protein expression of retina TSP-1 and PDGF-B on HPS high-dose group (P<0.05, P<0.01). Conclusion HPS may prevent the angiogenesis and proliferation in diabetic retinopathy process through adjusting the content of TSP-1 and PDGF-B in retina of diabetic rats so as to protect the retina.
7.Effects of HPS on Myocardial Fibrosis and Expression of MMP-2/TIMP-2 in Model Mice of Diabetic Cardiomyopathy
Dongxv WANG ; Zhisheng JIN ; Huazhi ZHANG ; Cailing HE ; Xiangping NAN ; Guizhen SHI ; Huiyuan CHU
Chinese Journal of Information on Traditional Chinese Medicine 2017;24(4):57-60
Objective To observe the effects of hedysari polysaccharide (HPS) on myocardial fibrosis and the expression of MMP-2/TIMP-2 in model mice of diabetic cardiomyopathy; To discuss the mechanism of action of prevention and treatment of myocardial fibrosis in diabetes.Methods Sixty mice were randomly divided into model group, rosiglitazone group and HPS high-, mediume- and low-dose groups. The normal group was 12 non-transgenic male BKS.Cg-Dock7m+/+Leprdb/JNjumice with the same age. Each group was given relevant medicine for gavage, for 8 weeks. Blood glucose of mice before and after medication 2, 4, 6, and 8 weeks was detected. The levels of MMP-2, MMP-2 and MMP-9 in myocardium were measured by Masson staining. The protein expressions of MMP-2 and TIMP-1 in myocardium were detected by Western blot.Results Compared with the model group, the blood glucose of HPS (high- and medium dose) groups and rosiglitazone group decreased significantly. Masson staining showed that the green fibers in the model group significantly increased and rosiglitazone group and HPS high-dose group decreased compared with the model group. Western blot showed that the expressions of MMP-2 in model group and MMP-2/TIMP-2 ratio were declined significantly, while the expression of MMP-2 was increased and TIMP-2 was decreased significantly, and the ratio of MMP-2/TIMP-2 increased in rosiglitazone group and HPS high- and medium-dose group.Conclusion HPS may reduce the degree of myocardial fibrosis in model mice with diabetic cardiomyopathy. The therapeutic effect of HPS may be to relieve myocardial fibrosis in model mice by increasing the ratio of MMP-2/TIMP-2.
8.Clinical observation on effect of detection of hepatitis B virus large protein in diagnosis of hepatitis B
Bin ZHANG ; Kuishan WANG ; Huazhi SONG
International Journal of Laboratory Medicine 2017;38(23):3257-3258,3261
Objective To compare the clinical effect of the conventional detection and detection of hepatitis B virus large protein , aiming at improving the detection rate of hepatitis B .Methods According to the principle of random selection ,80 cases of hepatitis B patients ,from September 2016 to February 2017 in our hospital ,were selected and were randomly divided into two groups ,40 ca-ses in the control group ,40 cases in the observation group .The observation group was adopted the detection of hepatitis B virus large protein while the control group were treated by conventional detection method .The detection rate of two groups was com-pared .Results The positive rate of hepatitis B virus infection by Real-timePCR for detection in observation group was 86 .25%(69/80) ,which was higher than 72 .50% (58/80) in control group by ELISA ,and the difference was statistically significant (P<0 .05) .The positive rate of HBV-DNA in control group was 77 .50% (31/40) which was lower than 90 .00% (36/40) in observa-tion group ,and the difference was statistically significant (P<0 .05) .Conclusion The conventional detection method and detection of hepatitis B virus large protein both can detect the hepatitis B virus ,and detection rate of detection of hepatitis B virus large pro-tein was higher .Detection of hepatitis B virus large protein is recommended for the detection of hepatitis B virus in order to reduce the misdiagnosis rate .
9.Analysis of clinical characteristics and risk factors for 92 cases of nosocomially acquired candidemia
Zhongxin WANG ; Naifang YE ; Boyun ZHANG ; Ying HUANG ; Huazhi LING ; Jilu SHEN ; Yuanhong XU
Chinese Journal of Infectious Diseases 2016;34(4):232-236
Objective To investigate the clinical features and prognostic factors of nosocomially acquired candidemia.Methods A retrospective analysis was conducted for hospitalized patients with nosocomial candidemia between January 2012 and December 2014 at the First Affiliated Hospital of Anhui Medical University.The univariate and multivariate Logistic regression analyses were used to determine the prognostic factors of candidemia.Results A total of 92 patients were diagnosed with nosocomially acquired candidemia.The most common pathogen was Candida glabrata (C.glabrata,39/92,42.4%),followed by Candida albicans (C.albicans,30/92,32.6%),then Candida krusei (C.krusei,7/92,7.6%),Candida tropicalis (C.tropicalis,5/92,5.4%),Candida parapsilosis (C.parapsilosis,4/92,4.4%) and other Candida spp.(7/92,7.6%).The sensitivity rates of Candida spp.strains against flucytosine,amphotericin B,voriconazole,fluconazole and itraconazol were 100.0%,98.9%,92.4%,82.6%oo and 77.2%,respectively.The 30-day attributable case fatality rate was 13.0%(12/92).Multivariate Logistic regression analyses indicated that presence of central venous catheter (OR=4.833,95%CI:1.010-23.125,P=0.049),invasive mechanical ventilation (OR=6.075,95%CI:1.144-32.257,P=0.034),and receiving hemodialysis (OR =8.367,95 % CI:1.390-50.364,P =0.020)were factors independently correlated with increased mortality.Conclusions The pathogens causing nosocomially acquired candidemia are mainly C.glabrata,C.albicans and C.krusei.The drug susceptibility of Candida spp.varies among fluconazole,itraconazol voriconazole.The resistant rates of Candida spp.against voriconazole,fluconazole and itraconazol are different.The presence of central venous catheter,invasive mechanical ventilation and receiving hemodialysis are factors independently correlated with increased mortality.
10.Analysis of Prevalence Rate and Related Factors of Retinal Arteriosclerosis in In-service Teachers in Universities
Yaqin RU ; Zhisheng JIN ; Huazhi ZHANG
Chinese Journal of Rehabilitation Theory and Practice 2013;19(8):765-767
Objective To study the relationship between the retinal arteriosclerosis prevalence and related factors in in-service teachers from 3 universities. Methods The medical report of in-service teachers from 3 universities from July to October, 2012 were analyzed. Results and Conclusion 2680 cases were included, in which 520 cases (19.4%) were diagnosed as retinal arteriosclerosis. Retinal arteriosclerosis prevalence increased with age and cardiovascular risk factors. In the multi-factor logistic regression analysis, gender, age, hypertension,hyperlipidemia, impaired fasting glucose regulation, diabetes, hyperuricemia are independent risk factors for retinal arteriosclerosis


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