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    From 2D to 3D: decoding tuberculosis pathobiology and drug development with ex vivo disease models

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    253-266Tuberculosis (TB) remains a global health challenge, requiring advanced models to understand its complex pathobiology and develop effective treatments. Despite extensive research, TB evades full understanding and control due to its complex interaction with the human immune system and latent state. Ex vivo models are essential for capturing these complexities and advancing TB research. Historically, TB research relied on two-dimensional (2D) cell cultures and animal models, which fell short of replicating the intricate lung environment. The advent of three-dimensional (3D) ex vivo models marks a significant leap forward, offering more physiologically relevant systems. These models, including spheroid cultures, organoid cultures, and lab-on-a-chip technologies, accurately represent human lung tissue and its interaction with Mycobacterium tuberculosis. 3D ex vivo models replicate the cellular diversity, architecture, and microenvironment of lung tissue, enabling detailed studies of TB pathogenesis, immune response, and granuloma formation. They also offer superior platforms for drug screening for efficacy and toxicity. Integrating microfluidics, advanced imaging techniques, and omics-based analytical platforms enhances these models' ability to simulate dynamic infection and treatment processes. This review highlights the development and transformative impact of ex vivo models on TB research, promising accelerated discovery of new therapeutic strategies

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    Biohybrid molecules: Integrating natural and synthetic components for advanced biochemical applications

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    107-116Biohybrid molecules, a fusion of natural and synthetic components, represent a significant leap in biochemical technology. These innovative molecules harness the unique properties of both their natural and synthetic constituents, enabling new possibilities in advanced biochemical applications. The integration of biological and artificial elements offers enhanced functionality, stability, and versatility, paving the way for groundbreaking advancements in areas such as drug delivery, diagnostics, and bioengineering. This approach not only bridges the gap between biology and chemistry but also opens up new frontiers in the development of smart, responsive systems tailored for specific biomedical purposes. This could revolutionize regenerative medicine, offering new hope for patients in need of transplants or tissue repairs. The development of biohybrid molecules is still in its early stages, but the promise they hold is immense. As technology advances and our understanding of molecular interactions deepens, the potential for biohybrids to transform healthcare, environmental science, and even industrial processes becomes increasingly tangible. There is significant potential for future research to unlock these possibilities, where the boundaries between natural and synthetic components are seamlessly integratedfor the betterment of society

    Effect of synthetic cold flow additives on properties of biodiesel and biodieseldiesel blends: A mini-review

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    25-32The demand for an alternative fuel to control fossil fuels is increasing, and biodiesel can play a crucial role in combatting the problems. Biodiesel that has been produced through various feedstocks employing different processes is a renewable and eco-friendly fuel. However, the generation of fewer emissions than fossil fuel makes it one favourable choice, but its marketability is still restricted due to poor cold flow behaviour and oxidation stability. In this review, we have focused on the cold flow problem of biodiesel which hampers functioning of diesel engines. This review particularly explores the types of synthetic additives, their mechanism of action, and their application in biodiesel-diesel blends in the last seven years

    Quinazoline fused 1,2,4-triazoles: PIDA-mediated synthesis, characterization, anti-breast cancer agents, ABTS radical scavenging efficacy, molecular docking, and DFT studies

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    68-84The present work demonstrates the PIDA-mediated mild synthesis of 3-aryl-5-phenyl-[1,2,4]triazolo[4,3-c]quinazolines 5a-n through an intramolecular oxidative-cyclization of twelve electronically dissimilar and newly prepared (E)-4-(2- benzylidenehydrazineyl)-2-phenyl- quinazolines 4a-n as key precursors. Structural confirmation of quinazoline-hydrazone and triazole has been established based on 1H and 13C NMR, IR, and HRMS data. Antiproliferative activity examination has led to the identification of 5-phenyl-3-(2,3,4-trimethoxyphenyl)-[1,2,4] triazolo[4,3-c]quinazoline 5g and 3-(2,3- dichlorophenyl)-5-phenyl-[1,2,4]triazolo[4,3-c] quinazoline 5j, as most active (less than and comparable to standard), which exhibit cytotoxicity with IC50 value of 1.14 mM and 1.39 mM, respectively against MCF-7 cell line. 5g and 5j also show significant potential against MDA-MB231 cell line with IC50 of 2.79 mM and 1.95 mM, respectively. Additionally, molecular modeling studies have been conducted to support the results and to study the binding interaction of the compound 5g and 5j with VEGFR-2 kinase enzyme (PDB ID:3U6J). Furthermore, systematic screening of 5a-n for ABTS radical scavenging activity, displays that 3-(4-fluorophenyl)-5-phenyl-[1,2,4]triazolo[4,3-c]quinazoline 5h, has the highest antioxidant efficacy with IC50= 11.2 ± 0.14 μg/mL. The antioxidant efficacy of 5a-n is also supported by DFT studies

    Chondrus ocellatus Holmes ethanol extract suppresses the atopic dermatitis in DNCB-induced BALB/c mice

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    125-133Atopic dermatitis (AD) is a common skin disease, and it is a chronically relapsing and inflammatory skin disease accompanied by itching. Many red algae are being actively conducted, studies on the physiological activity of C. ocellatus Holmes are rarely conducted. To investigate whether Chondrus ocellatus Holmes ethanol extract (COHEE) inhibits AD progression in animal models. COHEE significantly decreased Th cytokines in ConA-stimulated splenocytes in a dose-dependent manner. AD-like skin lesions were induced by 2,4-dinitrochlorobenzene (DNCB) in BALB/c mice, and COHEE was applied to DNCB-induced mice to study the effect of COHEE on AD. COHEE lowered the number of WBCs in the blood and the spleen weight of mice. COHEE significantly decreased the secretion of IL-4 and IL-5, whereas the level of IFN-γ was increased in splenocytes. In addition, the secretion of IgE and TNF-α was significantly suppressed in the serum, and the IL-10 was increased. In conclusion, the present study indicates that COHEE has an inhibitory effect on AD and is useful for drug development and treating AD

    Rare heirloom crop that needs conservation

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    Immobilized Scenedesmus regularis for enhanced biosorption of zinc oxide nanoparticles

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    239-251Zinc oxide (ZnO) nanoparticles are among the most widely used nanoparticles as ingredients in various products. These nanoparticles often enter the water bodies through industrial discharge and other means. Once they reach into the water, they remain there for longer time and show toxicity to aquatic flora, fauna and even human beings upon exposure. Despite their potential hazards, the removal of nanoparticles from the environment has not been extensively studied, making it a pressing issue for both human health and the environment. Driven by this need, the present study has undertaken to develop a biosorption method using immobilized Scenedesmus regularis green microalgae to remove ZnO nanoparticles. In this research, environmentally isolated microalgae were characterized using 18S rRNA gene sequencing. The ZnO nanoparticles were chemically synthesized and characterized through Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM), and X-ray diffraction (XRD). Batch sorption experiments were conducted to demonstrate the efficiency of Scenedesmus regularis in absorbing ZnO nanoparticles under various conditions. Statistical analysis using oneway ANOVA was conducted to compare conditions before and after biosorption. The 18S rRNA gene sequencing confirmed that the isolated species was Scenedesmus regularis. ICPMS results showed that the immobilized Scenedesmus regularis microalgal biomass, encapsulated in sodium alginate beads, effectively removed 82.53% of ZnO nanoparticles at an initial concentration of 80 mg/L within 3 h. FTIR analysis revealed that carboxyl, amine, hydroxyl, sulfate, and sulfonate functional groups on the Scenedesmus regularis cell wall played a significant role in binding ZnO nanoparticles. Additionally, SEM-EDX imaging confirmed the attachment of ZnO nanoparticles to the surface of Scenedesmus regularis cells. The results of the adsorption/desorption studies showed that the Scenedesmus regularis biosorbent could be regenerated many times with no extensive reduction in ZnO nanoparticles' adsorption percentage. Present study exposed to provide an alternative to conventional wastewater treatment techniques. This research focuses that Scenedesmus regularis as a biosorbents appeared to be more efficient to uptake of ZnO nanoparticles and has a potential to be reused for multiple cycles of nanoparticles uptake. The study aims to eliminate toxic nanoparticles from aqueous environments through microalgae biosorption. This method is efficient, natural, safe, eco-friendly, and more economical

    Expression profiling of TP53, BLM, DIS3L2, GPC3, NSD1, PAX6 and AMER1 genes in Wilms' tumor cases

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    210-220Wilms' tumor has been linked to a number of genes, but WT1 has been reported to be directly linked to the growth of this embryonic tumor. Due to mutations in additional genes occurring in conjunction with WT1, Wilms' tumor is linked to a variety of disorders that manifest as syndromic conditions, e.g., Li-Fraumeni syndrome, Bloom syndrome, Perlman syndrome, Simpson-Golabi-Behemel syndrome, Sotos syndrome, WAGR syndrome and X-chromosome syndrome, which are linked to oncogenes (OGs) and tumor suppressor genes (TGs), i.e., TP53, BLM, DIS3L2, GPC3, NSD1, PAX6, and AMER1, respectively. The study demonstrated the mRNA expression levels of the TP53, BLM, DIS3L2, GPC3, NSD1, PAX6 and AMER1 genes by code-set chemistry in 24 Wilms' tumor cases in comparison to their internal controls (adjacent to tumor tissues). Capture-and-reporter probe-based expression was carried out using NanoString technology. All the genes of interest were found to be significantly up- and downregulated according to the fold change expression study results. The mRNA expression of TP53 in 95.84%, BLM in 83.34%, DIS32 in 62.50%, NSD1 in 62.50%, AMER1 in 58.33%, GPC3 and PAX6 in 50% of Wilms' tumor cases were significantly upregulated. Hence, this study established that the NSD1, DIS3L2, AMER1, TP53, BLM, PAX6, and GPC3 genes play roles in the development of these embryonic tumors and can be used as biological markers for Wilms' tumors. However, a larger sample size is needed to validate the above data

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