Tropical Journal of Pharmaceutical Research最新文献

{"title":"CircPDSS1 accelerates malignant progression of renal cell carcinoma through sponging of miR-182-5p","authors":"Jia Wang, Yan Li, Yangsong Ou, Wan Qin, Wukui Huang, Cengceng Lu, Rongyan Ma, Rui Han, Hu Han","doi":"10.4314/tjpr.v22i10.3","DOIUrl":"https://doi.org/10.4314/tjpr.v22i10.3","url":null,"abstract":"Purpose: To investigate the biological function and mechanisms of circPDSS1 in triggering malignant progression of renal cell carcinoma (RCC).&#x0D; Methods: Quantitative real-time polymerase chain reaction (qRT-PCR) was conducted to determine circPDSS1 levels in 50 pairs of RCC and para-cancerous tissues. The relationship between circPDSS1 level and pathological indices in RCC patients was analyzed, while the in vitro effect of circPDSS1 in regulating RCC proliferation was assessed using cell counting kit-8 (CCK-8), colony formation and 5- ethynyl-2’- deoxyuridine (EdU) assay. The sponge effect of circPDSS1 on miR-182-5p was examined by bioinformatics analysis and dual- luciferase reporter assay, while their involvement in mediating malignant progression of RCC was analyzed using rescue experiments. In vivo, the influence of circPDSS1 on RCC growth was determined by establishing a xenograft model in nude mice. Thereafter, RCC tissues were harvested from mice to assess relative levels of miR-182-5p and Ki-67.&#x0D; Results: CircPDSS1 was highly expressed in RCC tissues (p < 0.05). A high level of circPDSS1 correlated with advanced tumor staging and low overall survival. Knockdown of circPDSS1 inhibited RCC cell proliferation, and CircPDSS1 sponged and negatively regulated miR-182-5p (p < 0.05). MiR182-5p was able to abolish regulatory effect of circPDSS1 on malignant proliferative potential in RCC cells. In nude mice bearing RCC, in vivo knockdown of circPDSS1 slowed down tumor growth and decreased positive expression of Ki-67 in tumor tissues (p < 0.05).&#x0D; Conclusion: CircPDSS1 predicts tumor stage and prognosis in RCC patients. It triggers malignant progression of RCC through sponging of miR-182-5p.","PeriodicalId":23347,"journal":{"name":"Tropical Journal of Pharmaceutical Research","volume":"91 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135685456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Safety and efficacy of salvianolate injection in preventing deep vein thrombosis after total hip replacement","authors":"Xiaoning Liu, Yang Ju, Xiaoyong Yin, Hui Yang, Shoujiang Han, Deming Kong, Hongbo Zhao","doi":"10.4314/tjpr.v22i10.20","DOIUrl":"https://doi.org/10.4314/tjpr.v22i10.20","url":null,"abstract":"Purpose: To investigate the safety and efficacy of salvianolate injection in preventing deep vein thrombosis (DVT) following total hip replacement.&#x0D; Methods: A total of 114 patients who underwent total hip replacement at Department of Trauma, Fengfeng General Hospital of North China Medical and Health Group, Handan City, China from March 2019 to March 2022 were enrolled. Patients were randomly divided into study group (n = 57) and control group (n = 57). The control group received conventional treatment (low molecular weight heparin) while the study group was administered salvianolate injection combined with conventional treatment. Incidence of deep vein thrombosis (DVT) at 7 and 14 days after surgery, platelet function indices, including platelet count, glycoprotein Ⅱb/Ⅲa (GPⅡb/Ⅲa), and CD62P, coagulation function indices (prothrombin time (PT), fibrinogen (FIB) and D-dimer), and hemodynamics indices, viz, peak blood flow velocity (Vp) and average velocity (Va) were investigated and compared.&#x0D; Results: Incidence of DVT was 1.75 % (1/57) at 7 days and 5.26 % (3/57) at 14 days in the study group, and 5.26 % (3/57) at 7 days and 17.54 % (10/57) at 14 days in control group. Incidence of DVT in the study group was significantly reduced compared to control group 14 days after surgery (p < 0.05). Also, the study group had significantly lower visual analog scale (VAS) scores at 7 days and 1 month after surgery compared to control group (p < 0.05). Platelet count, GPⅡb/Ⅲa, and CD62P in the study group were significantly lower than in control group (p < 0.05).&#x0D; Conclusion: Salvianolate injection significantly prevents DVT after total hip replacement, improves hemodynamics, and coagulation function, and thus contributes to recovery of hip function. Further clinical trials are, however, required to validate these findings.","PeriodicalId":23347,"journal":{"name":"Tropical Journal of Pharmaceutical Research","volume":"88 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135685273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hederagenin inhibits proliferation, angiogenesis and inflammation of fibroblast-like synovial cells in rheumatoid arthritis","authors":"Ping Wang, Junli Yang, Xiaomeng Zhang","doi":"10.4314/tjpr.v22i10.4","DOIUrl":"https://doi.org/10.4314/tjpr.v22i10.4","url":null,"abstract":"Purpose: To determine the effect of Hederagenin (Hed) on rheumatoid arthritis (RA) in a cell model, and to elucidate the mechanism of action of Hed.&#x0D; Methods: MTT, EDU, and Immunoblot assays were used to determine the effects of Hed on the viability of fibroblast-like synovial cells, while the effects of Hed on inflammation were examined by enzymelinked immunosorbent assay (ELISA) and immunoblot assay. The influence of Hed on cell motility angiogenesis was evaluated by Transwell and tube formation assays, while immunoblot analysis was used to determine the mechanism of action of Hed.&#x0D; Results: Hed inhibited the viability of RA-FLS cells and suppressed the inflammation of RA-FLS cells (p < 0.05). Furthermore, Hed suppressed the migration and angiogenesis of RA-FLSl cells, as well as regulated MAPK pathway (p < 0.05).&#x0D; Conclusion: Hed inhibits the proliferation, angiogenesis and inflammation of fibroblast-like synovial cells in RA by regulating MAPK pathway. Therefore, Hed is a drug for the treatment of RA, However, in vivo studies to validate these findings are recommended","PeriodicalId":23347,"journal":{"name":"Tropical Journal of Pharmaceutical Research","volume":"91 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135685457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Isolation, characterization, structural elucidation and in vivo hepatoprotective studies of phytoconstituents obtained from the fruits of &lt;i&gt;Cordia obliqua&lt;/i&gt; Willd","authors":"G. Tharun Babu, S. Sivakrishnan, J.V.C. Sharma","doi":"10.4314/tjpr.v22i10.15","DOIUrl":"https://doi.org/10.4314/tjpr.v22i10.15","url":null,"abstract":"Purpose: To isolate, characterize, and investigate the hepatoprotective effect of phyto-constituents from fruits of Cordia obliqua Wild in paracetamol-induced hepatotoxicity in Wistar rats.&#x0D; Methods: Ethanol and aqueous extracts of C. obliqua fruits were screened for phytochemicals. The extracts were subjected to column chromatography and preparative thin-layer chromatography (TLC) to isolate four novel compounds. Compounds were characterized using infrared spectroscopy (IR), mass spectroscopy (MS), as well as 1H and 13C nuclear magnetic resonance (NMR). The isolated compounds were assessed for acute toxicity, in vivo hepatoprotective and antioxidant potential (dose: 5 mg/kg) in paracetamol-induced (75 mg/kg) hepatotoxicity through oral route in Wistar rats.&#x0D; Results: Phytochemical analysis of ethanol (COE) indicated the presence of fatty acids, anthraquinones, glycosides, saponins, alkaloids, tannins, flavonoids, coumarins, phenolics, triterpenes, and sterols. Compounds A, B, and C were identified from COE. Treatment at 50 mg/kg significantly reduced aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), gamma-glutamyl transferase (GGTP), and total bilirubin (TB), as well as increased total protein and total alkalinity levels in serum compared to the positive control. Liver histo-architecture showed improvements compared to the positive control, indicating hepatic protection.&#x0D; Conclusion: The isolated compounds (A, B and C) from COE exhibit hepatoprotective effects attributed to flavonoids and phenolics with free radical scavenging properties. Further research is needed to identify key mechanisms responsible for hepatoprotective effects.","PeriodicalId":23347,"journal":{"name":"Tropical Journal of Pharmaceutical Research","volume":"91 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135685460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Co-delivery of combretastatin A4 and docetaxel with pegylated nanostructured lipid carriers in tumor cells","authors":"Caifeng Jia, Sen Zhang, Wenpan Li, Chun Chu, Haiyang Hu, Mingxia Wang, Dawei Chen","doi":"10.4314/tjpr.v22i10.2","DOIUrl":"https://doi.org/10.4314/tjpr.v22i10.2","url":null,"abstract":"Purpose: To investigate a novel co-delivery system using nanostructured lipid carriers (NLCs) for simultaneous administration of two potent anti-cancer drugs, combretastatin A-4 (CA-4) and docetaxel (DTX), against tumor cells and vasculature.&#x0D; Methods: The CA-4 and DTX co-loaded NLCs (C-D-NLC) were formulated and investigated for physical properties, stability, and drug release. Safety and efficacy of C-D-NLC were investigated on Lewis Lung Carcinoma (LLC) tumor cells in vitro and in vivo using cytotoxicity and anti-tumor assays. The pharmacokinetics of CA-4 and DTX in rats after intravenous injection of C-D-NLC were also studied to evaluate potential drug interactions.&#x0D; Results: The C-D-NLC was successfully prepared with a spherical shape, mean size of 130 nm, negative charge, high encapsulation efficiency and drug loading of 94.89, 88.16, 2.44, and 4.52 for DTX and CA-4, respectively. Also, C-D-NLC had a significant inhibitory effect on LLC cells, superior to a single drug or solution group. Combretastatin A4 did not affect the pharmacokinetics of DTX, but combretastatin–docetaxel nanostructured lipid carriers (C-D-NLC) reduced plasma clearance of CA-4 and DTX, prolonged half-life, mean residence time, and increased area under concentration curves (AUC) values. Furthermore, combretastatin–docetaxel nanostructured lipid carriers (C-D-NLC) inhibited the growth of LLC tumors in mice and reduced drug toxicity.&#x0D; Conclusion: Combretastatin–docetaxel nanostructured lipid carriers (C-D-NLC) sustain drug release and enhance tumor growth inhibition of CA-4 and DTX by targeting both tumor cells and vasculature. The co-delivery system prolongs drug circulation compared to solution administration. Thus, nanostructured lipid carriers (NLCs) with dual drug loading may be a promising strategy for clinical combination chemotherapy in future.","PeriodicalId":23347,"journal":{"name":"Tropical Journal of Pharmaceutical Research","volume":"90 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135685464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Therapeutic effect of cisatracurium in patients with acute respiratory distress syndrome","authors":"Yanping Li, Jiping Li, Zhongmei Ni","doi":"10.4314/tjpr.v22i10.19","DOIUrl":"https://doi.org/10.4314/tjpr.v22i10.19","url":null,"abstract":"Purpose: To investigate the therapeutic effect of cisatracurium, (a neuromuscular blocking agent) in the treatment of acute respiratory distress syndrome (ARDS).&#x0D; Methods: A total of 94 ARDS patients admitted to The Third People's Hospital of Honghe Hani and Yi Autonomous Prefecture ICU from March 2020 to December 2021 were randomly assigned to study and control groups (47 patients each). Both groups received mechanical ventilation, but the study group also received continuous intravenous cisatracurium for 48 h. Health parameters, such as blood gas levels, respiratory mechanics, duration of stay in intensive care unit ICU), mortality rate, and the occurrence of complications, were monitored at 3, 6, and 12 months after treatment.&#x0D; Results: The study group showed significant improvements compared to control group. Study group also had reduced duration of mechanical ventilation, duration of ICU stay, ICU mortality rate, and incidence of complications (p < 0.05). There were no significant differences in pre-treatment health parameters, but post-treatment, study group had significantly higher levels of blood gas levels and improved lung function (p < 0.05). Study group also had lower scores of illness severity and reduced total mortality rate at 3, 6, and 12 months (p < 0.05).&#x0D; Conclusion: Administering cisatracurium reduces mechanical ventilation, duration of ICU stay and mortality rate, as well as improves lung function in ARDS patients. Future research involving larger sample size, and takes into consideration regional/environmental differences, is required to validate these findings for reliability.","PeriodicalId":23347,"journal":{"name":"Tropical Journal of Pharmaceutical Research","volume":"89 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135685383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of miR-138 on migration and invasion of cervical cancer cells, and the underlying mechanism","authors":"Yanxi Li, Jun Peng, Yong Huang, Yichun Man, Yaqi Li, Ping Chen, Erqing Peng","doi":"10.4314/tjpr.v22i10.6","DOIUrl":"https://doi.org/10.4314/tjpr.v22i10.6","url":null,"abstract":"Purpose: To study the influence of microRNA-138 (miR-138) on the migration and invasion of cervical cancer cells, and the underlying mechanism.&#x0D; Methods: Fifteen cervical carcinoma subjects were enrolled in the study. Control group comprised cervical epithelial cell line (End1/E6E7) while cervical cancer group was human cervical squamous cell carcinoma cell line c33a. Both were cultured routinely without any treatment. In miR-138 overexpression group, cells were cultured in progeny of human cervical squamous carcinoma cell line c33a infected with miR-138 gene overexpression lentivirus. Expression levels of miR-138 in excised cervical cancer tissues were determined using qPCR. Cell proliferation was determined with CCK8 assay. Immunoblotting was utilized to assay protein expression levels. Quantitative real-time polymerase chain reaction (qRT-PCR) was used to determine mRNA expression levels, while cell migration and invasion were assessed by Transwell method.&#x0D; Results: There was significant down-regulation of miR-138 expression in cervical cancer tissue, relative to nearby tissues (p < 0.05). In miR-138 overexpression group, cell proliferation, number of migrated and invaded cells were significantly reduced, relative to corresponding levels in cervical cancer cells. There were significantly higher expression levels of apoptosis-related proteins FAS, Bax and FasL in miR-138 overexpression group than in cervical cancer cells, while Bcl-2 was significantly downregulated, relative to cervical cancer group (p < 0.05). In cervical cancer cells, mRNA and protein levels of SIRT1 and HIF-1α were significantly up-regulated, relative to corresponding control, but levels of HIF1α and miR-138 were significantly reduced in overexpression group when compared to cervical cancer group (p < 0.05).&#x0D; Conclusion: Up-regulating miR-138 in cervical cancer cells reduces HIF-1α through inhibition of SIRT1 signaling, resulting in suppression of multiplication, migration and invasion of cervical cancer cells, while enhancing apoptotic changes.","PeriodicalId":23347,"journal":{"name":"Tropical Journal of Pharmaceutical Research","volume":"88 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135685391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identification of potential biomarkers and candidate smallmolecule drugs for heart failure via comprehensive gene microarray analysis","authors":"Hailang Liu, Chunyang Yu, Zhongcheng Wei, Qing Zhang","doi":"10.4314/tjpr.v22i10.7","DOIUrl":"https://doi.org/10.4314/tjpr.v22i10.7","url":null,"abstract":"Purpose: To identify potential novel biomarkers and to explore new small-molecule drugs for heart failure (HF). Methods: The Gene Expression Omnibus (GEO) microarray datasets were downloaded for analyzing the differentially expressed genes  (DEGs). Venn analysis was performed to calculate the overlapping genes which were then used for Gene Ontology (GO) analysis, and  Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis using cluster Profiler in R package; a protein-protein interaction network (PPI) was constructed using STRING database. The hub genes were selected for small-molecule drug identification, while molecular  docking of small-molecule drugs and hub genes was performed using CBdock2. Results: Upregulated and downregulated DEGs were  obtained from GSE84796, GSE107569 and GSE116250 datasets, respectively. Eleven (11) overlapping genes, which were enriched in  collagen fiber tissue, collagen-containing extracellular matrix and collagen fiber-related pathways, were also enriched in AGE-RAGE and  relaxin signaling pathways. The PPI network of the DEGs was constructed, and five hub genes, with high connectivity, were significantly  upregulated in HF. The five hub genes were ranked as MFAP4, LTBP2, THBS4, COL3A1 and COL1A1. Two targets (COL1A1 and COL3A1) matched potential drugs, and fostamatinib shared by the two targets had the greatest therapeutic value for HF. Conclusion: Five novel  biomarkers and involved signaling pathways have been identified in HF via comprehensive microarray analyses. The results also show  that fostamatinib might be a promising drug candidate for HF treatment","PeriodicalId":23347,"journal":{"name":"Tropical Journal of Pharmaceutical Research","volume":"90 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135685378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effectiveness of the combination of terbutaline and budesonide inhalation in treating acute bronchial asthma during pregnancy","authors":"Guozhi Zhang, Lina Zhou, Shanshan Guo, Mei Wang, Ling Han","doi":"10.4314/tjpr.v22i10.26","DOIUrl":"https://doi.org/10.4314/tjpr.v22i10.26","url":null,"abstract":"Purpose: To investigate the therapeutic benefits of terbutaline sulfate aerosol inhalation combined with budesonide, and its influence on pulmonary function in pregnant women suffering from acute bronchial asthma attacks.&#x0D; Methods: A total of 100 pregnant patients diagnosed with acute bronchial asthma in PLA Strategic Support Force Characteristic Medical Center, Beijing, China were divided into control and study groups (n = 50 each). Control group received aerosol inhalation of normal saline along with standard treatments, viz, oxygen inhalation, sputum aspiration, anti-infection measures, and maintenance of water- electrolyte balance. Study group received combined terbutaline sulfate and budesonide aerosol inhalation in addition to standard treatment. Both groups underwent a 7-day treatment course, with inhalation therapy twice daily.&#x0D; Results: Study group showed significantly shorter relief times for cough, wheezing, and chest tightness compared to control group (p < 0.05). After treatment, 92.0 % of patients in study group exhibited improvement or relief from their symptoms, compared to 80.0 % in control group (p < 0.05). Pulmonary function indices, including first vital capacity (FVC), forced expiratory volume in one second (FEV1), peak expiratory flow (PEF), and FEV1/FVC, improved in both groups after treatment. Study group exhibited significantly lower laboratory indices, including immunoglobulin E (IgE), C-reactive protein (CRP), and eosinophils (EOS) compared to control group (p < 0.05).&#x0D; Conclusion: The combination of inhalation therapy of terbutaline sulfate with budesonide in pregnant women experiencing acute bronchial asthma demonstrates significant enhancements in clinical effectiveness, pulmonary function, and laboratory parameters. Clinical trials of this combined therapy should be carried out in other locations to ascertain the effect of population variation on treatment efficacy.","PeriodicalId":23347,"journal":{"name":"Tropical Journal of Pharmaceutical Research","volume":"89 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135685381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of 20-hydroxyecdysone and its metabolites in the absence or presence of IGF-1 on regulation of skeletal muscle cell growth","authors":"Kanokwan Suhatcho, Boon-ek Yingyongnarongkul, Saowanee Kumpun, Ratchakrit Srikuea","doi":"10.4314/tjpr.v22i10.11","DOIUrl":"https://doi.org/10.4314/tjpr.v22i10.11","url":null,"abstract":"Purpose: To investigate the effect of 20-hydroxyecdysone (20E) and its metabolites and their synergistic effect with IGF-1 on regulation of skeletal muscle cell growth.&#x0D; Methods: Mouse skeletal muscle cell line (C2C12) was solely treated with 20E and its metabolites (14- deoxy- 20-hydroxyecdysone, poststerone, and 14-deoxypoststerone) at doses of 0.1, 1, and 10 µM or co-treated with IGF-1 (10 ng/ml). Cell viability and proliferative capacity were evaluated using MTT and BrdU incorporation assays, respectively. Myogenic differentiation proteins [embryonic myosin heavy chain (EbMHC) and MHC], androgen receptor (AR), and IGF-1 receptor (IGF-1R) protein expression were investigated using immunocytochemistry.&#x0D; Results: Treatments of 20E and its metabolites had no toxicity on skeletal muscle cells or induced AR/IGF-1R expression. In addition, solely treatment of 20E and its metabolites or co-treatment with IGF-1 had no significant effect on cell proliferation and myogenic differentiation capacity. In contrast, IGF-1 treatment alone significantly increased EbMHC expression (p<0.0001), MHC expression (p<0.05), and myotube number (p<0.05).&#x0D; Conclusion: These results indicate that 20E and its metabolites have no direct or synergistic effect with IGF-1 on skeletal muscle cell growth. Nevertheless, the pharmacological effects of 20E on skeletal muscle mass and strength in vivo that raises its therapeutic potential may associate with its indirect action.","PeriodicalId":23347,"journal":{"name":"Tropical Journal of Pharmaceutical Research","volume":"89 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135685384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}