Ho Chi Minh City Open University Journal of Science
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Scrutinizing the load capacity curve for a global perspective: The role of Fintech, government effectiveness and renewable energy
No full textWith the evolving world order, countries are using financial technologies (Fintech) to access financial resources more effectively, and Fintech can have an impact on the environment. This study aims to investigate the influence of Fintech on ecological sustainability, focusing on the contribution of renewable energy (RE) and government effectiveness (GE) under the Load Capacity Curve (LCC). This research analyzes data from 69 middle-income economies between 2006 and 2022 using the dynamic panel threshold model (DPTR). The outcomes document that GDP reduces the LCF below a certain threshold, but a positive impact above this threshold. Specifically, the model yielded a threshold value of US 4276.802. This finding suggests a U-shaped relationship between GDP and LCF, which supports the LCC hypothesis. The outcome also reports that Fintech plays a crucial role in improving ecological sustainability, while government effectiveness has a negative effect. The study emphasizes that middle-income countries should support Fintech and renewable energy along development with economic progress to improve ecological quality
The Role of the miR858 and miR828 Families in Flavonoid Biosynthesis in Medicinal Plants
No full textFlavonoids, a major class of secondary metabolites, play critical roles in plant development, environmental adaptation, and human health. Their biosynthesis is tightly regulated by intricate genetic networks involving transcription factors and non-coding RNAs, particularly microRNAs (miRNAs). Among them, miR858 and miR828 have emerged as key post-transcriptional regulators of flavonoid biosynthetic pathways by targeting MYB family transcription factors. This study comprehensively reviews the regulatory mechanisms of these two miRNA families in medicinal plants and Arabidopsis thaliana, with emphasis on their involvement in modulating gene expression linked to flavonoid accumulation. Recent findings highlight that miR858 not only represses flavonoidspecific MYBs but is also influenced by a regulatory peptide, miPEP858a, which enhances its own transcriptional activity, thereby altering phenylpropanoid metabolism and plant development. Similarly, miR828 functions both directly and via TAS4-derived siRNAs to downregulate anthocyanin-related MYBs, contributing to color modulation and stress responses. Functional analyses in model species and economically important plants demonstrate that the miR858–MYB and miR828–TAS4–MYB modules are evolutionarily conserved, yet display species-specific patterns in regulatory output. Moreover, tissue-specific expression studies, such as in Osmanthus fragrans, underline the spatial regulation of flavonoid-related genes by miR858a. The integration of omics data and experimental validation suggests that these miRNAs orchestrate transcriptional and epigenetic regulation, offering potential biotechnological targets to enhance flavonoid content. Overall, the study provides an in-depth synthesis of the current understanding of miR858 and miR828-mediated regulatory circuits, establishing their roles as central modulators in flavonoid biosynthesis across diverse plant taxa.</p
Bioefficacyof Laurel<i> (Laurus</i><i> nobilis</i> L.) Esse of Pontastacus leptodactylus Lipopolysaccharide-Induced Inflammation in Japanese Quails ntials Oil on
No full textThe potential use of natural plants and essential oils as feed ABSTRACT additives in poultry farming is a popular research area. In the presentedstudy, the effects of laurelessentialoilon me hoate (DMT) pes icid is one of the ch micals u ed to growthandfeedconversion performances, slaughter-carcass otect some agricultural areas from harmfu organisms DMT characteristicsoxidativestressindexandhistopathological sidues releas d directl or in irectl to he environment auseseriousproblems innatureDMTresiduesmixedwith the parameters in Japanese quails in LPS-induced inflammation quaticenvironmentadverselyaffect aquatico ganismsand model were investigated. The study groups were established as Control (C), laurelessential oil (LEO) group, lipopolysaccharide is effect is carred to humans through the ood chain In this udy, oxidative stress responses induced by DMT pestic de in (LPS) group, laurel essential oil together with lipopolysaccharide (LEO+LPS) group. The live weights on the 19th, 26th and 33rd were investiga ed. Forhis purpose, days were higher in the LEO+LPS and in the LEO group on the xidative sress and antoxdan parametersTh obarbituric acid 36th day. Feed utilization was the worst in the LPS and the best in theLEOgroup. Non-eviscerated carcass yield was lower active sub tances TBARS), Glutath one (G H) Superoxide insmutatheeLPS(SOD),groupcatalasecompared(CATto) theandglutathcontrol,oneandtheperoxidasegizzard weight washigherin theLEO,LEO+LPS andLPS groups. The PX) ca sed by dimethoate (DMT) pesticide inOSIvaluewasobservedas highest in the LPS group and the 17 5 35, and 70 mgL-concentrations at 24 and 96 hours ere investigated Results were determined using ELISA kits. lowest in the LEO group. In addition, OSI value in the LEO group reduced importantly comparing with LEO+LPS group. Liver OSI o significant difference was observed in GSH levels and SOD values did not show any significant difference in all groups. Histopathologically, no significant difference was observed, tivities compared to con rol. Statistcally signifiant dfferences ere obse vedbetweendecreasesiCAT and GPx ctivities and in terms of fatty liver, congestion, degeneration necrosis and cellcreasesinfiltratinion.TBARSThelevels.additionSPSSof24.0laurelpackageincreasedprogramdegeneratone-wayion, NOVA(Dncan005) was usedin heevaluationofbochemical necrosis and desquamation and cell infiltration in the lamina nalyzes As a re ultt was determ nedthatDMTcausedoxdative epithelialis in the intestine. In the intestines, cell infiltration ress ormation n and aus dchanges in enzy e was significantly increased in the LPS group compared to the control group. In addition, eosinophilic accumulations ctviti s were detected in the brain in the LPS group. As a result, it ey words: Dime hoa e oxdative was determined that laurel essential oil improved live weight and feed conversion rate,made a significant contribution to stress antioxidant,biomarkers balancing the oxidant-antioxidant capacity ratio, and showed significant bioactivity, especially in terms of turning the negative effect of LPS into positive
Scorpion Sting Presenting with Sympathetic Activation and Neurotoxicity: A Case with a Complex Clinical Course
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