443 research outputs found

    The Role of Enterprise Architecture in Ensuring ESG Factors for Sustainability

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    Organisations increasingly recognise the importance of environmental, social, and governance (ESG) aspects for ensuring organisational and global sustainability. Digital transformation is helping organisations to integrate ESG factors into their operations and leverage information technology for economic, social, and environmental benefits. Enterprise architecture (EA) is a strategic approach that integrates business objectives with information technology systems and infrastructure to align with organisational goals and enable effective management, governance, and decision-making. Despite the growing recognition of the significance of ESG factors in promoting sustainable business practices, there are still obstacles to assuring ESG for organisational sustainability. The article explores the key issues in incorporating ESG factors for organisational sustainability and suggests ways EA can help address these challenges. The paper also proposes a conceptual design for the role of EA in ensuring ESG factors for organisational sustainability

    EFFECT OF SEASONAL AND GEOGRAPHICAL VARIATION ON THE PHYTOCONSTITUENTS AND MEDICINAL PROPERTIES OF TRIBULUS TERRESTRIS

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    Abstract: Seasonal and geographical variations have impact on secondary plant metabolites in medicinal plants. In the present study an attempt was made to evaluate the phytochemical variation and its effect on the medicinal properties of Tribulus terrestris which was collected from two different seasons (Summer and winter) and from two different geographical regions i.e. Rafha, and Riyadh, Saudi Arabia (hot desert climate) and Bangalore, India (tropical savanna climate).The amount of Phenolic acids and flavonoids was evaluated by Folin ciocalteu method and Aluminum chloride colorimetric method respectively. Anti-oxidant activity was carried out for all the extracts by the DPPH method .The results revealed that the amount of phenolic acid and flavonoid was found to be higher i.e. 428 μgm and 295 μgm respectively in TT1-S which was in the sample collected during summer from the Rafha region. To further investigate the best season of collection of samples in Rafha, HPLC analysis was carried out for TT1-S and TT1 –W extracts using rutin and gallic acid as the standards; the amount of rutin and gallic acid was found to be higher in TT1-S. Furthermore analgesic activity was carried out for these extracts and the sample collected during summer exhibited significant activity when compared to the sample collected during winter. The results of this study give evidence that the season and geographical variations bring about a change in the plant metabolites which in turn affect the medicinal properties .From the results it is evident that the best season to collect the plant is during summer in Rafha as the amount of phytoconstituents is found to be more during this season Key words: Tribulus terrestris, seasonal, geographical, phytoconstituents, medicinal propertie

    Effect of Soluble Epoxide Hydrolase on the Modulation of Coronary Reactive Hyperemia: Role of Oxylipins and PPARγ

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    Coronary reactive hyperemia (CRH) is a physiological response to ischemic insult that prevents the potential harm associated with an interruption of blood supply. The relationship between the pharmacologic inhibition of soluble epoxide hydrolase (sEH) and CRH response to a brief ischemia is not known. sEH is involved in the main catabolic pathway of epoxyeicosatrienoic acids (EETs), which are converted into dihydroxyeicosatrienoic acids (DHETs). EETs protect against ischemia/reperfusion injury and have numerous beneficial physiological effects. We hypothesized that inhibition of sEH by t-AUCB enhances CRH in isolated mouse hearts through changing the oxylipin profiles, including an increase in EETs/DHETs ratio. Compared to controls, t-AUCB–treated mice had increased CRH, including repayment volume (RV), repayment duration, and repayment/debt ratio (p \u3c 0.05). Treatment with t-AUCB significantly changed oxylipin profiles, including an increase in EET/DHET ratio, increase in EpOME/DiHOME ratio, increase in the levels of HODEs, decrease in the levels of mid-chain HETEs, and decrease in prostanoids (p \u3c 0.05). Treatment with MS-PPOH (CYP epoxygenase inhibitor) reduced CRH, including RV (p \u3c 0.05). Involvement of PPARγ in the modulation of CRH was demonstrated using a PPARγ-antagonist (T0070907) and a PPARγ-agonist (rosiglitazone). T0070907 reduced CRH (p \u3c 0.05), whereas rosiglitazone enhanced CRH (p \u3c 0.05) in isolated mouse hearts compared to the non-treated. These data demonstrate that sEH inhibition enhances, whereas CYP epoxygenases-inhibition attenuates CRH, PPARγ mediate CRH downstream of the CYP epoxygenases-EET pathway, and the changes in oxylipin profiles associated with sEH-inhibition collectively contributed to the enhanced CRH

    3D Bioprinted cancer models: Revolutionizing personalized cancer therapy

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    After cardiovascular disease, cancer is the leading cause of death worldwide with devastating health and economic consequences, particularly in developing countries. Inter-patient variations in anti-cancer drug responses further limit the success of therapeutic interventions. Therefore, personalized medicines approach is key for this patient group involving molecular and genetic screening and appropriate stratification of patients to treatment regimen that they will respond to. However, the knowledge related to adequate risk stratification methods identifying patients who will respond to specific anti-cancer agents is still lacking in many cancer types. Recent advancements in three-dimensional (3D) bioprinting technology, have been extensively used to generate representative bioengineered tumor in vitro models, which recapitulate the human tumor tissues and microenvironment for high-throughput drug screening. Bioprinting process involves the precise deposition of multiple layers of different cell types in combination with biomaterials capable of generating 3D bioengineered tissues based on a computer-aided design. Bioprinted cancer models containing patient-derived cancer and stromal cells together with genetic material, extracellular matrix proteins and growth factors, represent a promising approach for personalized cancer therapy screening. Both natural and synthetic biopolymers have been utilized to support the proliferation of cells and biological material within the personalized tumor models/implants. These models can provide a physiologically pertinent cell–cell and cell–matrix interactions by mimicking the 3D heterogeneity of real tumors. Here, we reviewed the potential applications of 3D bioprinted tumor constructs as personalized in vitro models in anticancer drug screening and in the establishment of precision treatment regimens

    Vascular Endothelial Over-Expression of Human Soluble Epoxide Hydrolase (Tie2-sEH Tr) Attenuates Coronary Reactive Hyperemia in Mice: Role of Oxylipins and ω-Hydroxylases

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    Cytochromes P450 metabolize arachidonic acid (AA) into two vasoactive oxylipins with opposing biologic effects: epoxyeicosatrienoic acids (EETs) and omega-(ω)-terminal hydroxyeicosatetraenoic acids (HETEs). EETs have numerous beneficial physiological effects, including vasodilation and protection against ischemia/reperfusion injury, whereas ω-terminal HETEs induce vasoconstriction and vascular dysfunction. We evaluated the effect of these oxylipins on post-ischemic vasodilation known as coronary reactive hyperemia (CRH). CRH prevents the potential harm associated with transient ischemia. The beneficial effects of EETs are reduced after their hydrolysis to dihydroxyeicosatrienoic acids (DHETs) by soluble epoxide hydrolase (sEH). ω-terminal HETEs are formed by ω-hydroxylase family members. The relationship among endothelial over-expression of sEH (Tie2-sEH Tr), the changes in oxylipins it may produce, the pharmacologic inhibition of ω-hydroxylases, activation of PPARγ, and CRH response to a brief ischemia is not known. We hypothesized that CRH is attenuated in isolated mouse hearts with endothelial sEH over-expression through modulation of oxylipin profiles, whereas both inhibition of ω-hydroxylases and activation of PPARγ enhance CRH. Compared to WT mice, Tie2-sEH Tr mice had decreased CRH, including repayment volume, repayment duration, and repayment/debt ratio (P \u3c 0.05), whereas inhibition of ω-hydroxylases increased these same CRH parameters in Tie2-sEH Tr mice. Inhibition of sEH with t-AUCB reversed the decreased CRH in Tie2-sEH Tr mice. Endothelial over-expression of sEH significantly changed oxylipin profiles, including decreases in DHETs, mid-chain HETEs, and prostaglandins (P \u3c 0.05). Treatment with rosiglitazone, PPARγ-agonist, enhanced CRH (P \u3c 0.05) in both Tie2-sEH Tr and wild type (WT) mice. These data demonstrate that endothelial over-expression of sEH (through changing the oxylipin profiles) attenuates CRH, whereas inhibition of ω-hydroxylases and activation of PPARγ enhance it

    Chronic Salt Loading and the Expression of Adenosine Receptor Subtypes

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