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Phytochemical composition and toxicity assessment of Ammi majus L. 麻米的植物化学成分及毒性评价。
IF 1.7 4区 医学 Q3 TROPICAL MEDICINE Pub Date : 2023-04-01 DOI: 10.4103/2221-1691.374233
A. Bouyahya, ToongHai Sam, LongChiau Ming, O. El-Guourrami, N. Salhi, F. Benkhouili, G. Zengin, MustafaAbdullah Yilmaz, Mouna Ameggouz, Ahmed Zahidi, L. Rouas, KhangWen Goh, A. Doukkali, H. Benzeid
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引用次数: 0
Hesperidin attenuates arsenic trioxide-induced cardiac toxicity 橙皮苷减轻三氧化二砷引起的心脏毒性
IF 1.7 4区 医学 Q3 TROPICAL MEDICINE Pub Date : 2023-04-01 DOI: 10.4103/2221-1691.374232
JeevanRanjan Dash, G. Khuntia, B. Jena, Umakanta Mishra, S. Parija
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引用次数: 2
Natural sources, biosynthesis, biological functions, and related mechanism of shikimic acid and its derivatives: A mini-review 莽草酸及其衍生物的天然来源、生物合成、生物学功能及相关机制综述
IF 1.7 4区 医学 Q3 TROPICAL MEDICINE Pub Date : 2023-04-01 DOI: 10.4103/2221-1691.374230
G. Gandhi, AlanBruno Silva Vasconcelos, P. Antony, M. Montalvao, Mariana Nobre Farias de Franca, VargheseEdwin Hillary, S. Ceasar, Dan Liu
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引用次数: 0
Molluscicidal activities of green-synthesized Alstonia congensis silver nanoparticles 绿色合成的银粉纳米颗粒的杀螺活性
IF 1.7 4区 医学 Q3 TROPICAL MEDICINE Pub Date : 2023-04-01 DOI: 10.4103/2221-1691.374234
Oyetunde T. Oyeyemi, B. Babalola, TaiwoC Akinmulero, PreciousA Adesida, I. Oyeyemi
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引用次数: 1
Ponatinib and gossypol act in synergy to suppress colorectal cancer cells by modulating apoptosis/autophagy crosstalk and inhibiting the FGF19/FGFR4 axis Ponatinib和棉酚协同作用,通过调节凋亡/自噬串扰和抑制FGF19/FGFR4轴抑制结直肠癌细胞
IF 1.7 4区 医学 Q3 TROPICAL MEDICINE Pub Date : 2023-03-01 DOI: 10.4103/2221-1691.372286
N. El-Lakkany, Hadeel H Elkattan, A. Elsisi
Objective: To evaluate the efficacy of ponatinib plus gossypol against colorectal cancer HCT-116 and Caco-2 cells. Methods: Cells were treated with ponatinib and/or gossypol at increasing concentrations to evaluate synergistic drug interactions by combination index. Cell viability, FGF19/FGFR4, and apoptotic and autophagic cell death were studied. Results: Ponatinib (1.25-40 μM) and gossypol (2.5-80 μM) monotherapy inhibited HCT-116 and Caco-2 cell viability in a dose- and time-dependent manner. The combination of ponatinib and gossypol at a ratio of 1 to 2 significantly decreased cell viability (P<0.05), with a > 2- and > 4-fold reduction in IC50, respectively, after 24 h and 48 h, as compared to the IC50 of ponatinib. Lower combined concentrations showed greater synergism (combination index<1) with a higher ponatinib dose reduction index. Moreover, ponatinib plus gossypol induced morphological changes in HCT-116 and Caco-2 cells, increased beclin-1 and caspase-3, and decreased FGF19, FGFR4, Bcl-2 and p-Akt as compared to treatment with drugs alone. Conclusions: Gossypol enhances ponatinib's anticancer effects against colorectal cancer cells through antiproliferative, apoptotic, and autophagic mechanisms. This may open the way for the future use of ponatinib at lower doses with gossypol as a potentially safer targeted strategy for colorectal cancer treatment.
目的:评价波纳替尼联合棉酚对结直肠癌HCT-116和Caco-2细胞的抑制作用。方法:增加ponatinib和/或棉酚浓度处理细胞,通过联合指数评估药物协同作用。研究细胞活力、FGF19/FGFR4以及细胞凋亡和自噬性死亡。结果:Ponatinib (1.25 ~ 40 μM)和棉酚(2.5 ~ 80 μM)单药抑制HCT-116和Caco-2细胞活力呈剂量和时间依赖性。波纳替尼和棉酚以1比2的比例组合显著降低细胞活力(与波纳替尼相比,24 h和48 h后IC50分别降低了4倍)。较低的联合浓度显示出更大的协同作用(联合指数<1),而较高的波纳替尼剂量减少指数。此外,与单独用药相比,波纳替尼加棉酚可诱导HCT-116和cco -2细胞形态学改变,beclin-1和caspase-3升高,FGF19、FGFR4、Bcl-2和p-Akt降低。结论:棉酚通过抑制结直肠癌细胞的增殖、凋亡和自噬机制增强了ponatinib对结直肠癌细胞的抗癌作用。这可能为未来使用低剂量的波纳替尼与棉酚作为结直肠癌治疗的潜在更安全的靶向策略开辟了道路。
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引用次数: 0
Melatonin alleviates oxidative stress, inflammation, apoptosis, and DNA damage in acrylamide–induced nephrotoxicity in rats 褪黑素可减轻丙烯酰胺肾毒性大鼠的氧化应激、炎症、细胞凋亡和DNA损伤
IF 1.7 4区 医学 Q3 TROPICAL MEDICINE Pub Date : 2023-03-01 DOI: 10.4103/2221-1691.372285
F. Ibaokurgil, H. Aydın, S. Yıldırım, E. Sengul
Objective: To investigate the effects of melatonin on renal inflammation, oxidative stress, apoptosis, as well as DNA and tissue damage in acrylamide-induced nephrotoxicity in rats. Methods: Fifty male rats were randomly divided into five groups. The control group received distilled water by gastric lavage for 11 days and the acrylamide group was administered acrylamide (50 mg/kg, i.g.) for 11 days. The MEL10+ACR and MEL20+ACR groups received intraperitoneal melatonin 10 and 20 mg/kg, respectively, for 11 days, and acrylamide (50 mg/kg, i.g.) was administered 1 h after melatonin injection. The MEL20 group was injected with melatonin (20 mg/kg) for 11 days. Kidney function tests were performed and biochemical and inflammatory parameters were determined. In addition, histopathological, immunohistochemical, and immunofluorescence examinationswerecarried out. Results: Melatonin significantly abated acrylamide-induced rise in serum urea and creatinine levels. Acrylamide caused oxidative stress, inflammation, apoptosis, as well as DNA and tissue damage in the kidneys. Melatonin treatment alleviated acrylamide-induced renal damage by exhibiting antioxidant, anti-inflammatory, and anti- apoptotic effects. Moreover, melatonin significantly ameliorated acrylamide-caused histopathological changes in kidney tissue. Conclusions: Melatonin attenuates acrylamide-induced renal oxidative stress, inflammation, apoptosis, and DNA damage in rats.
目的:探讨褪黑素对丙烯酰胺肾毒性大鼠肾脏炎症、氧化应激、细胞凋亡及DNA和组织损伤的影响。方法:50只雄性大鼠随机分为5组。对照组灌胃蒸馏水11 d,丙烯酰胺组灌胃丙烯酰胺50 mg/kg,灌胃11 d。MEL10+ACR组和MEL20+ACR组分别腹腔注射褪黑素10和20 mg/kg,连续11 d,褪黑素注射1 h后ig丙烯酰胺50 mg/kg。MEL20组小鼠注射褪黑素(20 mg/kg) 11 d。进行肾功能检查,并测定生化和炎症参数。此外,还进行了组织病理学、免疫组织化学和免疫荧光检查。结果:褪黑素显著降低丙烯酰胺引起的血清尿素和肌酐水平升高。丙烯酰胺会引起氧化应激、炎症、细胞凋亡以及肾脏的DNA和组织损伤。褪黑素治疗可通过抗氧化、抗炎和抗凋亡作用减轻丙烯酰胺引起的肾损伤。此外,褪黑素显著改善丙烯酰胺引起的肾组织病理改变。结论:褪黑素可减轻丙烯酰胺诱导的大鼠肾脏氧化应激、炎症、细胞凋亡和DNA损伤。
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引用次数: 0
Antiviral activity of mangiferin from the rhizome of Anemarrhena asphodeloides against herpes simplex virus type 1 山参根茎芒果苷对1型单纯疱疹病毒的抗病毒作用
IF 1.7 4区 医学 Q3 TROPICAL MEDICINE Pub Date : 2023-03-01 DOI: 10.4103/2221-1691.372284
Wen‐Da Wang, Gang Chen
Objective: To evaluate the antiviral activity of pure compounds against herpes simplex virus type 1 (HSV-1) from the rhizome of Anemarrhena asphodeloides. Methods: Bioassay-guided isolation was conducted to separate the active compound and its chemical structure was elucidated by spectral analysis. In vitro antiviral efficacy of active compound was detected by Cell Counting Kit-8 assay, plaque reduction assay, and fluorescence observation. RT-PCR was used to determine the viral load and the cytokine-related gene expression after HSV-1 infection. In vivo study was also conducted to further determine antiviral efficacy of an active compound against HSV-1. Results: An active compound was isolated and elucidated as mangiferin. Mangiferin significantly inhibited the replication of HSV-1 in Vero cells with a half maximal inhibitory concentration (IC50) of 64.0 mg/L. Time-of-addition and time-of-removal assays demonstrated that mangiferin could effectively inhibit the replication of HSV-1 in the early stage (8 h). UL12, UL42, and UL54 gene expression levels of HSV-1 in the 64 mg/L mangiferin-treated group were markedly reduced as compared with the HSV-1 group (P<0.01). Fluorescence observation showed that mangiferin attenuated the mitochondrial damage maintaining ΔΨm induced by HSV-1 in Vero cells. The expression of inflammatory factors TNF-α, IL- 1β, and IL-6 was remarkably increased in the virus-infected group as compared with that in the normal group (P<0.05), the levels of these inflammatory factors dropped after treatment with mangiferin. Mangiferin significantly decreased the viral load and attenuated the HSV-1-induced up-regulation of TNF-α, IL1β, and IL-6. The relative protection rate of HSV-1-infected mice could reach up to 55.5% when the concentration of mangiferin was 4 g/kg. Conclusions: Mangiferin exhibits promising antiviral activity against HSV-1 in vitro and in vivo and could be a potential antiviral agent for HSV-1.
目的:评价纯化合物对羊毛蒿根茎中单纯疱疹病毒1型(HSV-1)的抗病毒活性。方法:采用生物测定引导分离法分离活性化合物,并通过波谱分析对其化学结构进行鉴定。采用细胞计数试剂盒-8法、斑块减少法和荧光观察检测活性化合物的体外抗病毒作用。RT-PCR检测1型单纯疱疹病毒感染后病毒载量及细胞因子相关基因表达。还进行了体内研究,以进一步确定活性化合物对HSV-1的抗病毒功效。结果:分离得到一个活性化合物,经鉴定为芒果苷。芒果苷显著抑制HSV-1在Vero细胞中的复制,最大抑制浓度(IC50)为64.0 mg/L。添加时间和去除时间试验表明,芒果苷能有效抑制HSV-1在早期(8 h)的复制,64 mg/L芒果苷处理组的HSV-1的UL12、UL42和UL54基因表达量明显低于HSV-1组(P<0.01)。荧光观察显示,芒果苷可减轻HSV-1诱导的Vero细胞线粒体维持损伤ΔΨm。与正常组相比,病毒感染组炎症因子TNF-α、IL- 1β、IL-6的表达显著升高(P<0.05),经芒果苷治疗后,这些炎症因子的表达水平下降。芒果苷显著降低病毒载量,减弱hsv -1诱导的TNF-α、il -1 β和IL-6的上调。当芒果苷浓度为4 g/kg时,对hsv -1感染小鼠的相对保护率可达55.5%。结论:芒果苷在体外和体内对HSV-1具有良好的抗病毒活性,可能是一种潜在的HSV-1抗病毒药物。
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引用次数: 0
Colon cancer and their targeting approaches through nanocarriers: A review 癌症及其纳米载体靶向研究进展
IF 1.7 4区 医学 Q3 TROPICAL MEDICINE Pub Date : 2023-03-01 DOI: 10.4103/2221-1691.372283
R. Kumari, Nikhil Sharma, R. Karwasra, Kushagra Khanna
Colon cancer is the fifth most common type of cancer in the world. Colon cancer develops when healthy cells in the lining of the colon or rectum alter and grow uncontrollably to form a mass known as a tumor. Despite major medical improvements, colon cancer is still one of the leading causes of cancer-related mortality globally. One of the main issues of chemotherapy is toxicity related to conventional medicines. The targeted delivery systems are considered the safest and most effective by increasing the concentration of a therapeutic substance at the tumor site while decreasing it at other organs. Therefore, these delivery systems required lower doses for high therapeutic value with minimum side effects. The current review focuses on targeting therapeutic substances at the desired site using nanocarriers. Additionally, the diagnostic applications of nanocarriers in colorectal cancer are also discussed.
癌症是世界上第五大最常见的癌症。当结肠或直肠内层的健康细胞发生改变并不受控制地生长形成称为肿瘤的肿块时,癌症就会发展。尽管取得了重大的医学进步,但癌症仍然是全球癌症相关死亡率的主要原因之一。化疗的主要问题之一是与传统药物有关的毒性。靶向递送系统被认为是最安全和最有效的,它通过增加肿瘤部位的治疗物质浓度而降低其他器官的浓度。因此,这些递送系统需要较低的剂量,以获得具有最小副作用的高治疗价值。目前的综述集中在使用纳米载体在所需位点靶向治疗物质。此外,还讨论了纳米载体在结直肠癌癌症诊断中的应用。
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引用次数: 0
T6SS-5 and the cGAS-STING pathway in Burkholderia pseudomallei infection and immunity T6SS-5和cGAS-STING通路在假杆菌感染和免疫中的作用
IF 1.7 4区 医学 Q3 TROPICAL MEDICINE Pub Date : 2023-03-01 DOI: 10.4103/2221-1691.372282
N. Semail, N. Zuraina, Y. Ismadi, N. Mohamad, A. Harun, I. Aziah, Z. Deris
Burkholderia pseudomallei is a causative agent of melioidosis that can infect humans and animals in endemic countries, specifically in Southeast Asia and tropical Australia. A fundamental component for the pathogenesis of Burkholderia pseudomallei is the capability of the bacterium to enter, survive, replicate, and cause disease in a host cell by inducing the host cell fusion. Cell fusion results in multinucleated-giant cell formation, thus enabling the dissemination of Burkholderia pseudomallei intracellularly. cGAS reacts to Burkholderia pseudomallei infection by activating the cGAS-STING pathway and subsequently limiting host’s aberrant cell division and cellular replication by inducing autophagic cell death. In this review, we discuss the host-pathogen interactions between the type Ⅵ secretion system 5 (T6SS-5) of Burkholderia pseudomallei and human cGAS pathway in melioidosis infections. Since T6SS-5 is a main virulent factor in Burkholderia pseudomallei and the cGAS pathway is vital for host immune response, elucidating their functions is important for better understanding the pathogenesis of Burkholderia pseudomallei.
假槌伯克霍尔德菌是类鼻疽的病原体,可感染流行国家的人类和动物,特别是东南亚和澳大利亚热带地区。假踝伯克霍尔德菌发病机制的一个基本组成部分是细菌通过诱导宿主细胞融合进入宿主细胞、存活、复制并在宿主细胞中致病的能力。细胞融合导致多核巨细胞形成,从而使假踝伯克霍尔德菌能够在细胞内传播。cGAS通过激活cGAS-STING途径,随后通过诱导自噬细胞死亡来限制宿主的异常细胞分裂和细胞复制,从而对假性踝伯克霍尔德菌感染作出反应。在这篇综述中,我们讨论了在类鼻疽感染中,假槌伯克霍尔德菌Ⅵ型分泌系统5(T6SS-5)与人类cGAS途径之间的宿主-病原体相互作用。由于T6SS-5是拟锤性伯克霍尔德菌的主要毒力因子,cGAS通路对宿主免疫反应至关重要,因此阐明其功能对于更好地了解拟锤性Burkholderia的发病机制至关重要。
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引用次数: 0
Combinatorial effect of diclofenac with piperine and D-limonene on inducing apoptosis and cell cycle arrest of breast cancer cells 双氯芬酸与胡椒碱和D-柠檬烯联合诱导乳腺癌症细胞凋亡和细胞周期阻滞
IF 1.7 4区 医学 Q3 TROPICAL MEDICINE Pub Date : 2023-02-01 DOI: 10.4103/2221-1691.369612
Srivarshini Sankar, G. Muthukaliannan
Objective: To investigate the potential synergistic activity of diclofenac with piperine and D-limonene in inducing apoptosis and cell cycle arrest in breast cancer MCF-7 cells. Methods: Molecular docking study was conducted to evaluate the binding affinity of diclofenac with piperine and D-limonene against p53, Bax, and Bcl-2. The MTT assay was used to determine IC50, and the Chou-Talay method was used to determine the synergistic concentration of the combination treatment of diclofenac plus piperine and diclofenac plus D-limonene. Apoptosis detection, cell cycle arrest, reactive oxygen species production, and mitochondrial membrane potential were also investigated. Results: Diclofenac, piperine, and D-limonene showed potent binding affinity for p53, Bax, and Bcl-2. Diclofenac plus piperine and diclofenac plus D-limonene enhanced the formation of reactive oxygen species, which also had an effect on the mitochondrial membrane's integrity and caused DNA fragmentation. Diclofenac plus piperine and diclofenac plus D-limonene arrested the cells in the sub-G0 phase while drastically lowering the percentage of cells in the G2/M phase. Furthermore, the elevated apoptosis in the combined therapy was confirmed by annexin V/propidium iodide staining. Conclusions: The combined therapy prominently enhanced the anti-proliferative and apoptotic effects on MCF-7 cells compared with treatment with diclofenac, piperine, and D-limonene alone.
目的:研究双氯芬酸与胡椒碱和D-柠檬烯协同作用对癌症MCF-7细胞凋亡和细胞周期阻滞的潜在作用。方法:通过分子对接研究,评价双氯芬酸与哌啶和D-柠檬烯对p53、Bax和Bcl-2的结合亲和力。MTT法测定IC50,Chou-Talay法测定双氯芬酸加胡椒碱和双氯芬酸加D-柠檬烯联合处理的协同浓度。细胞凋亡检测、细胞周期阻滞、活性氧产生和线粒体膜电位也进行了研究。结果:双氯芬酸、胡椒碱和D-柠檬烯对p53、Bax和Bcl-2表现出强大的结合亲和力。双氯芬酸加胡椒碱和双氯芬酸加D-柠檬烯增强了活性氧的形成,这也对线粒体膜的完整性产生了影响,并导致DNA断裂。双氯芬酸加胡椒碱和双氯芬酸加D-柠檬烯使细胞停滞在亚G0期,同时显著降低G2/M期细胞的百分比。此外,膜联蛋白V/碘化丙啶染色证实了联合治疗中细胞凋亡的增加。结论:与双氯芬酸、胡椒碱和D-柠檬烯单独治疗相比,联合治疗显著增强了对MCF-7细胞的抗增殖和凋亡作用。
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引用次数: 0
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Asian Pacific journal of tropical biomedicine
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