Asian Pacific journal of tropical biomedicine最新文献

{"title":"Ardisia gigantifolia ethanolic extract inhibits cell proliferation and targets cancer stem cells in gastric cancer","authors":"T. Le, P. Nguyen, V. Nguyen, Thy N C Nguyen","doi":"10.4103/2221-1691.378600","DOIUrl":"https://doi.org/10.4103/2221-1691.378600","url":null,"abstract":"Objective: To evaluate the effects of ethanol extract from Ardisia gigantifolia leaves on cell proliferation and cancer stem cell (CSC) number in gastric cancer. Methods: The inhibitory effect of Ardisia gigantifolia extract on the proliferation of MKN45 and MKN74 gastric cancer cells was assessed using 3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyltetrazolium bromide assay. Non-adherent culture (3D) model was used to evaluate the effect of the extract on tumorsphere size and number. Moreover, the expression of CD44, ALDH, and p21 was determined by immunofluorescence analysis. Flow cytometric analysis was performed to evaluate cell cycle arrest and the expression of gastric CSC markers CD44 and ALDH. Real-time PCR analysis was also carried out to assess the effect of the extract on the expression of cell cycle-regulated genes. Results: Ardisia gigantifolia extract effectively inhibited cell proliferation with an IC50 of 55.7 µg/mL in MKN45 cells and 123.6 µg/mL in MKN74 cells. The extract also arrested cell cycle in the G0/G1 phase as well as significantly reduced the size and number of tumorspheres. The markedly increased expression of p21 was observed at both mRNA and protein levels in the extract-treated adherent cells and tumorspheres. In addition, Ardisia gigantifolia extract significantly reduced the number of CD44- and/or ALDH-expressing gastric CSC. Conclusions: The development of gastric CSC can be inhibited by the ethanol extract of Ardisia gigantifolia.","PeriodicalId":8560,"journal":{"name":"Asian Pacific journal of tropical biomedicine","volume":"13 1","pages":"258 - 267"},"PeriodicalIF":1.7,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45902112","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":"Astragalus adscendens extract shows antidiabetic effects through controlling oxidative stress, inflammation and apoptosis in streptozotocin-induced diabetic rats","authors":"Yosra Raziani, Kimia Karami, H. Mohammadi, H. Mahmoudvand, M. Moradi, J. Yadegari","doi":"10.4103/2221-1691.378598","DOIUrl":"https://doi.org/10.4103/2221-1691.378598","url":null,"abstract":"Objective: To assess the effect of oral treatment of methanolic extract of the aerial parts of Astragalus adscendens in streptozotocin-induced diabetic rats. Methods: In order to induce diabetes, rats intraperitoneally received streptozotocin at 65 mg/kg. Sixty adult male Wistar rats were allocated into six groups (10 rats per each) including the healthy control group, the diabetic group as well as the diabetic group treated with Astragalus adscendens methanolic extract at 50, 100, and 200 mg/kg per day or glibenclamide (0.6 mg/kg/day) for 28 d. The effects of Astragalus adscendens methanolic extract on the levels of glucose, insulin, alanine aminotransferase, alkaline phosphatase, aspartate aminotransferase, bilirubin, creatinine, urea, uric acid, total protein, albumin, triglyceride, cholesterol, α-amylase, oxidant/antioxidant enzymes, and inflammatory cytokines were evaluated. Real time-PCR was also used for measuring the gene expression of caspase-3, Bcl2, and Bax. Results: The levels of glucose, cholesterol, triglyceride, creatinine, urea, uric acid, alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, bilirubin, and malondialdehyde considerably declined (P<0.001) in diabetic rats after treatment with Astragalus adscendens methanolic extract especially at a dose of 200 mg/kg. In addition, treatment with Astragalus adscendens methanolic extract noticeably increased the level of insulin, total protein, and albumin as well as improved the activities of catalase, glutathione peroxidase, and superoxide dismutase, as well as the expression levels of TNF-α, IL-1β, caspase-3, Bcl2 and Bax (P<0.001) compared to the diabetic control group. The extract also inhibited α-amylase in a dose-dependent manner with an IC50 value of 19.6 µg/mL. Conclusions: Astragalus adscendens methanolic extract shows potent antidiabetic, anti-inflammatory, anti-apoptotic, and antioxidant effects in diabetic rats. However, more studies are needed to verify the underlying mechanism of the effect of this plant extract and test its efficacy in clinical trials.","PeriodicalId":8560,"journal":{"name":"Asian Pacific journal of tropical biomedicine","volume":"13 1","pages":"242 - 249"},"PeriodicalIF":1.7,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47133253","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":"Green synthesis, characterization, acaricidal, larvacidal, and repellent activities of copper nanoparticles of Astragalus sinicus against Hyalomma anatolicum","authors":"H. Gattan, Bassam M. Al-ahmadi, A. Shater, Q. Majeed, M. Alazemi, A. Alanazi","doi":"10.4103/2221-1691.378599","DOIUrl":"https://doi.org/10.4103/2221-1691.378599","url":null,"abstract":"Objective: To green synthesize and characterize copper nanoparticles (CuNPs) using Astragalus sinicus, as well as evaluate the acaricidal, larvacidal, and repellent activities of CuNPs against Hyalomma anatolicum (H. anatolicum), one of the most prevalent ticks infesting cattle in Saudi Arabia. Methods: CuNPs were green synthesized by adding the Astragalus sinicus extract to a copper sulfate solution. The acaricidal, larvicidal, and repellent activities of CuNPs against H. anatolicum were assessed via the adult immersion test, the larval packet test, and the vertical movement behavior of tick larvae, respectively. The effects of CuNPs on acetylcholinesterase as well as oxidative enzyme activities were examined. Results: The green synthesized CuNPs displayed a spherical form with a size range of 15-75 nm. After exposure of adult H. anatolicum to different concentrations of CuNPs, the viability rate of adult H. anatolicum and the mean number, weight, and hatchability of eggs were noticeably reduced, in comparison to the control group (P<0.001). In addition, the viability rate of larvae considerably declined (P<0.001) with the LC50 and LC90 values of 11.30 and 20.34 μg/mL, respectively. The maximum repellent activity of CuNPs was observed at 50, 100, and 200 μg/mL with complete repellent activity after 60, 120, and 180 min of exposure, respectively. CuNPs, mainly at ½LC50 and LC50 concentrations, markedly suppressed the acetylcholinesterase activity of the larval stage of H. anatolicum (P<0.001). Moreover, CuNPs, mainly at LC50 dose, significantly elevated malondialdehyde level while declining glutathione-S-transferase level in H. anatolicum larvae (P<0.001). Conclusions: CuNPs show potent acaricidal, larvicidal, and repellent activities against adults and larvae of H. anatolicum. However, further studies must be performed to clarify the precise mechanisms and the efficacy of CuNPs in practical use.","PeriodicalId":8560,"journal":{"name":"Asian Pacific journal of tropical biomedicine","volume":"13 1","pages":"250 - 257"},"PeriodicalIF":1.7,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42429841","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":"G9a-targeted chaetocin induces pyroptosis of gastric cancer cells","authors":"Mianqing Huang, Guiping Tao, Lien Han, Shuhong Tian, Peng Zhou","doi":"10.4103/2221-1691.378601","DOIUrl":"https://doi.org/10.4103/2221-1691.378601","url":null,"abstract":"Objective: To evaluate the effect of chaetocin on pyroptosis of gastric cancer cells and its underlying mechanisms. Methods: The proliferation of gastric cancer cells was detected by trypan blue staining. Flow cytometry and Hoechst/propidium iodide double staining were used to detect apoptosis and pyroptosis. Cellular ultrastructure was observed by transmission electron microscopy. The levels of p-mixed lineage kinase domain-like (MLKL), gasdermin-D (GSDMD), gasdermin E (GSDME), N-GSDMD, and N-GSDME proteins were detected by Western blotting. In addition, lactate dehydrogenase (LDH) release assay was used to verify pyroptosis induced by chaetocin, and caspase 3 inhibition test and siRNA interference test were conducted to investigate pyroptosis mechanisms. Results: Chaetocin at concentrations of 200 nmol/L to 600 nmol/L inhibited the proliferation of AGS, HGC27, MKN28, and SGC7901 gastric cancer cells in a dose-dependent and time-dependent manner by inducing apoptosis and pyroptosis. Significant ultrastructure changes, such as chromatin condensation, vacuolization, disrupted mitochondrial cristae, and increased nuclear occupancy, were observed after treatment with chaetocin in SGC7901 cells. Chaetocin at a concentration of 400 nmol/L significantly increased the number of pyroptotic cells, LDH release, and the ratio of N-GSDME/ GSDME (P<0.01), which were reversed by Z-DEVD-FMK. In addition, chaetocin did not affect the expression of GSDMD. G9a silencing abolished the effect of chaetocin on the expression levels of GSDME and N-GSDME and LDH release (P>0.05). Conclusions: In addition to inducing apoptosis, chaetocin inhibits gastric cancer cells by inducing pyroptosis via the caspase 3/GSDME pathway. G9a was the target of chaetocin to induce pyroptosis of gastric cancer cells.","PeriodicalId":8560,"journal":{"name":"Asian Pacific journal of tropical biomedicine","volume":"13 1","pages":"268 - 276"},"PeriodicalIF":1.7,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43182955","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":"Anti-inflammatory effects of Solanum procumbens on a low dose complete Freund's adjuvant-induced arthritis rat model","authors":"Xuan-Hai Do, Trong Nguyen, Thanh Dang, Thi Nguyen, Trung Nguyen, Van Do, Huu Le, X. Nguyen, Hai-Anh H. Dang, Giang-Linh Nguyen, Dinh-Khanh Hoang, Van-Quan Le, V. Cấn","doi":"10.4103/2221-1691.377408","DOIUrl":"https://doi.org/10.4103/2221-1691.377408","url":null,"abstract":"Objective: To investigate the anti-inflammatory and analgesic effects of Solanum procumbens on complete Freund's adjuvant-induced arthritis rat models. Methods: We isolated and identified five compounds in the ethanol-soluble Solanum procumbens extract (SP) with anti-inflammatory effects, including ursolic acid, β-sitosterol, hexadecanoic acid, cis-vaccenic acid, and vanillic acid. Additionally, we investigated the anti-inflammatory effects of SP on rheumatoid arthritis symptoms, including paw volumes, local temperatures, withdrawal latency, and mechanical withdrawal threshold at the hind paw and white blood cell (WBC) number from complete Freund's adjuvant-induced arthritis rat models. Results: We have successfully established a complete Freund's adjuvant-induced arthritis rat model at a low dose (1 mg/mL). SP extract significantly reduced paw volumes (P<0.05), prolonged withdrawal latencies (P<0.05), decreased local temperature, and increased the mechanical withdrawal threshold (P<0.05), but only SP extract at the dose of 300 mg/kg significantly decreased WBC numbers. Conclusions: SP extract could be a potential medication candidate with anti-inflammatory effects for arthritis, but it requires further investigation into the mechanism of the SP and its effectiveness on other models as well as clinical trials.","PeriodicalId":8560,"journal":{"name":"Asian Pacific journal of tropical biomedicine","volume":"13 1","pages":"214 - 221"},"PeriodicalIF":1.7,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45833487","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 hydroalcoholic leaf extract of Cassia fistula L. on type II collagen-induced arthritis in rats","authors":"Vineet Mehta, P. Nagu, Arun Parashar, Manjusha Chaudhary","doi":"10.4103/2221-1691.377406","DOIUrl":"https://doi.org/10.4103/2221-1691.377406","url":null,"abstract":"Objective: To explore the effect of Cassia fistula on collagen II-induced arthritis in rats. Methods: The effect of 250 and 500 mg/kg chloroform and hydroalcoholic extract of Cassia fistula leaf on collagen II-induced arthritis was investigated by evaluating paw volume, arthritis index, spleen index, and biochemical parameters. Histopathological analysis and docking study were also performed. Results: A dose-dependent reduction in paw volume, arthritic index, and spleen index was observed following oral administration of the chloroform and hydroalcoholic extracts. Treatment with Cassia fistula extracts reduced tumor necrosis factor-α, interleukin (IL)-1β, IL-6, prostaglandin E2, aspartate aminotransferase, alanine aminotransferase, total leucocyte count, and erythrocyte sedimentation rate while increasing IL-10 level. In addition, Cassia fistula extracts improved joint architecture, and prevented cartilage and bone destruction. Docking analysis demonstrated that the physcion, 1-octacosanol, 5,3',4'-trihydroxy-6-methoxy-7-O-α-L-rhamnopyranosyl-(1,2)-O-β-D-galactopyranoside and scopoletin may be responsible for the anti-arthritic effect of Cassia fistula. Conclusions: Cassia fistula suppresses the progression of collagen II-induced arthritis by lowering the inflammatory factors, decreasing paw volume and arthritic index, and alleviating joint architecture. However, further studies are required to confirm the bioactive molecule responsible for the anti-arthritic potential of Cassia fistula.","PeriodicalId":8560,"journal":{"name":"Asian Pacific journal of tropical biomedicine","volume":"13 1","pages":"195 - 204"},"PeriodicalIF":1.7,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48023625","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":"In vitro antioxidant and wound healing activity of Sargassum polycystum hydroethanolic extract in fibroblasts and keratinocytes","authors":"Wanwipha Woonnoi, Furoida Moolsap, Supita Tanasawet, Nattakanwadee Khumpirapang, Chakkapat Aenglong, Wanida Sukketsiri","doi":"10.4103/2221-1691.377409","DOIUrl":"https://doi.org/10.4103/2221-1691.377409","url":null,"abstract":"Objective: To investigate the in vitro antioxidant and wound healing properties of the hydroethanolic extract of Sargassum polycystum, and elucidate the mechanism of its wound healing activity. Methods: Human dermal fibroblast and HaCaT cells were used to evaluate the proliferation by sulforhodamine B and dsDNA assay after treatment with Sargassum polycystum extracts. Scratch wound healing and phalloidin-rhodamine staining were employed to observe migratory activity and filopodia formation, respectively. Western blot and real-time RT-PCR assays were performed to determine the protein and gene expressions related to wound healing activities. Results: The phytochemical analysis found a higher level of flavonoid than phenolic compound in Sargassum polycystumextracts. In human dermal fibroblast cells, Sargassum polycystum extracts at 50 and 100 µg/mL significantly increased fibroblast proliferation and the gene expressions of hyaluronic acid synthase 1 (HAS1), HAS2, HAS3, collagen type 1 alpha 1 chain (COL1A1), collagen type 3 alpha 1 chain (COL3A1), and elastin. The phosphorylation of Akt, ERK1/2, and p38 MAPK was also significantly upregulated after treatment with Sargassum polycystumextracts. Additionally, 50 and 100 µg/mL of the extracts prominently enhanced the proliferation, migration, and filopodia formation of HaCaT cells, as well as the protein levels of pFAK/FAK, pSrc/Src, pAkt/Akt, pERK1/2/ERK1/2, Rac1 and Cdc42. Conclusions: Sargassum polycystum extracts show promising wound healing activities in human dermal fibroblasts and keratinocytes.","PeriodicalId":8560,"journal":{"name":"Asian Pacific journal of tropical biomedicine","volume":"13 1","pages":"222 - 232"},"PeriodicalIF":1.7,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48931772","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":"Natural polysaccharides for ulcerative colitis: A general overview","authors":"Nikhil Sharma, Akshita Arora, Dipti Kakkar","doi":"10.4103/2221-1691.377405","DOIUrl":"https://doi.org/10.4103/2221-1691.377405","url":null,"abstract":"Ulcerative colitis is a colonic disease characterized by the disruption of the mucosal epithelial layer and inflammation. For the treatment of this disease, various chemotherapeutic agents are available. However, the toxicities associated with chemotherapeutics greatly hamper treatment. Polysaccharide from natural resources is emerging as a potentially therapeutic substance with comparative minimum adverse effects. In this article, we are discussing polysaccharide from diverse sources (plants, edible mushrooms, and algae) which are being used in the treatment of ulcerative colitis. These polysaccharides exert their therapeutic action on ulcerative colitis through several mechanisms, including suppression of inflammatory cascades NF-ĸB, MAPK, IL-6/JAK2/STAT3, preventing the release of certain inflammatory mediators, modulating the intestinal microbiome, maintaining the integrity of intestinal barriers, and regulating the certain inflammatory markers. The present review compiles the role of different polysaccharides being used successfully in the management/treatment of ulcerative colitis. Special emphasis was given to explaining the biomolecular pathway.","PeriodicalId":8560,"journal":{"name":"Asian Pacific journal of tropical biomedicine","volume":"13 1","pages":"185 - 194"},"PeriodicalIF":1.7,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46246421","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":"Modulatory effect of D-pinitol on bleomycin-induced pulmonary fibrosis in rats","authors":"Yuzhou Duan, Zhi-Hua Wang, Yanfei Huo, Yang Zhang, Xiao-Ran Wu, Cuike Gong, Lin-lin Bai","doi":"10.4103/2221-1691.377407","DOIUrl":"https://doi.org/10.4103/2221-1691.377407","url":null,"abstract":"Objective: To assess the effect of D-pinitol on pulmonary fibrosis induced by bleomycin. Methods: Sprague-Dawley rats received intratracheal bleomycin (6 IU/kg) to induce pulmonary fibrosis, followed by administration of either D-pinitol (5, 10, or 20 mg/kg) or vehicle or methylprednisolone (10 mg/kg) over 28 days after bleomycin administration. Lung function, biochemical parameters, serum biochemistry, mRNA expressions, and histological features were observed. Results: D-pinitol at 10 and 20 mg/kg significantly (P<0.05) attenuated bleomycin-induced bronchoalveolar lavage fluid, decreased myeloperoxidase, nitric oxide, malondialdehyde levels, and increased glutathione and superoxide dismutase level. D-pinitol also improved lung function (enhanced pause, frequency of breathing, expired volume, and tidal volume). Besides, D-pinitol significantly (P<0.05) upregulated Nrf2 and downregulated mRNA expressions of TGF-β, collagen-1, and Smad-3. Furthermore, considerably less inflammation (peribronchial, perivascular, and total), Ashcroft, and interstitial fibrosis scores were observed in the D-pinitol group. Conclusions: D-pinitol exerts its effect against bleomycin-induced pulmonary fibrosis via antioxidative and anti-fibrotic pathways.","PeriodicalId":8560,"journal":{"name":"Asian Pacific journal of tropical biomedicine","volume":"13 1","pages":"205 - 213"},"PeriodicalIF":1.7,"publicationDate":"2023-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46743543","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":"Cardio-protective effects of Pinus eldarica bark extract on adrenaline-induced myocardial infarction in rats","authors":"L. Safaeian, Zahra Haghighatian, B. Zolfaghari, Mahdi Amindeldar","doi":"10.4103/2221-1691.374231","DOIUrl":"https://doi.org/10.4103/2221-1691.374231","url":null,"abstract":"","PeriodicalId":8560,"journal":{"name":"Asian Pacific journal of tropical biomedicine","volume":" ","pages":"0 - 0"},"PeriodicalIF":1.7,"publicationDate":"2023-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47995853","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}