Category: esters-buliding-blocks

Leng, Feng published the artcilePost-veraison different frequencies of water deficit strategies enhance Reliance grapes quality under root restriction, Computed Properties of 106-32-1, the main research area is Vitis fruit quality root veraison water deficit; Post-veraison; Primary and secondary metabolites; Vitis vinifera L.; Water deficit.

In this study, two water deficit treatments in the same amount of water but with different frequencies (T1: 2.5 L per 4 d and T2: 5 L per 8 d) were performed on Reliance grapevines from veraison until harvest to explore their effects on grape berries quality under root restriction. Results showed that glucose, fructose and sucrose contents were increased, while malic acid, tartaric acid and citric acid contents were decreased under two treatments. Meanwhile, water deficits also promoted the accumulation of phenylalanine and proline. For phenols, anthocyanins, resveratrol and flavonols contents in the water deficit groups were significantly higher than those in the control group. In addition, two water deficit treatments increased the characteristic aromas contents, especially the esters contents. Overall, T2 treatment had a better effect than T1 treatment. This study provided an idea for improving water use efficiency and grape quality.

Food Chemistry published new progress about Acids Role: BSU (Biological Study, Unclassified), BIOL (Biological Study) (titratable). 106-32-1 belongs to class esters-buliding-blocks, name is Ethyl octanoate, and the molecular formula is C10H20O2, Computed Properties of 106-32-1.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Isidorov, Valery A. published the artcileInheritance of specific secondary volatile metabolites in buds of white birch Betula pendula and Betula pubescens hybrids, HPLC of Formula: 140-11-4, the main research area is Betula bud secondary volatile metabolite ploidy flowering time.

Despite the differences in ploidy and in the timing of flowering, two species of white birch, Betula pendula and Betula pubescens often form viable hybrids in places of their joint growth. Recognition of such hybrids by their morphol. features is very difficult or impossible. On the other hand, it could be assumed that substantial differences can be found in the secondary metabolites whose composition is determined mainly by genetic factors. However, the inheritability of biosynthesis of secondary birch metabolites is unknown. We investigated the bud volatile organic compounds (VOCs) of the artificial hybrids of these birches and compared them with specific metabolites of pure parent species. The bud VOCs were determined by a combination of head-space microextraction with gas chromatog.-mass spectrometry. As the result, we found that: (a) hybrids clearly show dominant inheritance along the maternal line and (b) the buds of hybrid plants have characteristic features of VOCs composition, which allows for definitive conclusions about hybrid origins in some cases.

Trees (Heidelberg, Germany) published new progress about Aliphatic alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, HPLC of Formula: 140-11-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Haval, Gauri A. published the artcileExcess hydrogen peroxide inhibits head and foot regeneration in hydra by affecting DNA repair and expression of essential genes, Safety of 2′,7′-Dichloro-3-oxo-3H-spiro[isobenzofuran-1,9′-xanthene]-3′,6′-diyl diacetate, the main research area is foot hydrogen peroxide DNA repair; hydra; reactive oxygen species; regeneration.

ROS are necessary for various cellular processes. However, excess ROS cause damage to many biol. mols. and therefore must be tightly regulated in time and space. H2O2 is the most commonly used ROS as second messenger in the cell. It is a relatively long-lived freely diffusible signaling mol. during early events of injury. In the Cnidarian hydra, injury-induced ROS production is essential for regeneration to proceed. In the present study, we have examined influence of varying exposure to H2O2 on head and foot regeneration in the middlepieces of trisected hydra. We find that longer (4 h) exposure to 1 mM H2O2 inhibits both head and foot regeneration while shorter exposure (2 h) does not. Longer exposure to H2O2 resulted in extensive damage to DNA that could not be repaired, probably due to suboptimal induction of APE1, an enzyme necessary for base excision repair (BER). Concomitantly, genes involved in activation of Wnt pathway, necessary for head regeneration, were significantly downregulated. This appeared to be due to failure of both stabilization and transient nuclear localization of β-catenin. Similarly, genes involved in foot regeneration were also downregulated on longer exposure to H2O2. Thus, exposure to excess ROS inhibits regenerative processes in hydra through reduced expression of genes involved in regeneration and diminished DNA repair.

Journal of Biochemical and Molecular Toxicology published new progress about Animal gene Role: BSU (Biological Study, Unclassified), BIOL (Biological Study) (APE1). 2044-85-1 belongs to class esters-buliding-blocks, name is 2′,7′-Dichloro-3-oxo-3H-spiro[isobenzofuran-1,9′-xanthene]-3′,6′-diyl diacetate, and the molecular formula is C24H14Cl2O7, Safety of 2′,7′-Dichloro-3-oxo-3H-spiro[isobenzofuran-1,9′-xanthene]-3′,6′-diyl diacetate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Yu, Junhui published the artcileSynergistic tumor inhibition of colon cancer cells by nitazoxanide and obeticholic acid, a farnesoid X receptor ligand, SDS of cas: 55981-09-4, the main research area is nitazoxanide obeticholic acid synergistic tumor colon cancer FXR ligand.

The tumor-suppressive role of Farnesoid X receptor (FXR) in colorectal tumorigenesis supports restoring FXR expression as a novel therapeutic strategy. However, the complicated signaling network and tumor heterogeneity hinder the effectiveness of FXR agonists in the clin. setting. These difficulties highlight the importance of identifying drug combinations with potency and specificity to enhance the antitumor effects of FXR agonists. In this study, we found that the β-catenin level affected the antitumor effects of the FXR agonist OCA on colon cancer cells. Mechanistic studies identified a novel FXR/β-catenin complex in colon cancer cells. Furthermore, the depletion of β-catenin expedited FXR nuclear localization and enhanced its occupancy of the SHP promoter and thereby sensitized colon cancer cells to OCA. Furthermore, we utilized a drug combination study and identified that the antiparasitic drug nitazoxanide (NTZ) abrogated β-catenin expression and acted synergistically with OCA in colon cancer cells. The combination of OCA plus NTZ exerts synergistic tumor inhibition in CRC both in vitro and in vivo by cooperatively upregulating SHP expression. In conclusion, our study offers useful evidence for the clin. use of FXR agonists combined with β-catenin inhibitors in combating CRC.

Cancer Gene Therapy published new progress about Animal gene, c-myc Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 55981-09-4 belongs to class esters-buliding-blocks, name is 2-((5-Nitrothiazol-2-yl)carbamoyl)phenyl acetate, and the molecular formula is C12H9N3O5S, SDS of cas: 55981-09-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Hemmati-Dinarvand, Mohsen published the artcileNitazoxanide and Cancer Drug Resistance: Targeting Wnt/β-catenin Signaling Pathway, Recommanded Product: 2-((5-Nitrothiazol-2-yl)carbamoyl)phenyl acetate, the main research area is cancer nitazoxanide oxaliplatin drug resistance Wnt beta catenin chemotherapy; Colorectal cancer; Multidrug resistance; Nitazoxanid; Oxaliplatin; Wnt/β-catenin.

One of the most important complications that lead to unsuccessful treatment of cancer is resistance against chemotherapy agents, so called multidrug resistance (MDR). Thus, identification of the novel medications with low side effects and high efficacy to reverse MDR is highly required. Accordingly, the current study was performed to investigate the mol. mechanism of MDR in LS174T and LS174T/Oxaliplatin (OXP) cell lines during treatment with Nitazoxanide (NTZ) in combination with OXP. In the present in vitro study, we evaluated the effects of NTZ on the cytotoxicity of OXP using Thiazolyl Blue Tetrazolium Blue (MTT) assay in LS174T and LS174T/OXP cell lines when treated with OXP and NTZ, alone or in combination, for 24 and 48 h incubation. Then, we assessed the changes in the expression level of CTNNB1, ABCB1, c-Myc, and cyclin D1 genes in different treated groups. Exposure of LS174T/OXP cells to NTZ led to the elevation of cell sensitivity to OXP and induced caspase-3/7 activity, which results in apoptosis. Furthermore, NTZ downregulated Wnt/β-catenin signaling pathway through significant decrease of CTNNB1, c-Myc, ABCB1, and cyclin D1 genes and resulted in drug resistance reversal and inhibition of cell proliferation. These results indicate that Wnt/β-catenin pathway is important in developing cancer and MDR. In this regard, NTZ could reverse MDR in colorectal cancer (CRC) cells by downregulation of Wnt/β-catenin signaling pathway, suggesting that NTZ should be more considered in future studies as a potent adjuvant in CRC chemotherapy.

Archives of Medical Research published new progress about Animal gene, c-myc Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 55981-09-4 belongs to class esters-buliding-blocks, name is 2-((5-Nitrothiazol-2-yl)carbamoyl)phenyl acetate, and the molecular formula is C12H9N3O5S, Recommanded Product: 2-((5-Nitrothiazol-2-yl)carbamoyl)phenyl acetate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Mandal, Manisha published the artcileBioinformatic approaches for identification of potential repurposable drugs in COVID-19, Quality Control of 55981-09-4, the main research area is drug reporposing antiviral MYC ABCG rapamycin gene SARSCoV2 coronavirus.

Repurposing existing drugs approved for other conditions is crucial to identifying specific therapeutics against SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) causing COVID-19 (coronavirus disease 2019) pandemic. Towards this attempt, it is important to understand how this virus hijacks the host system during the course of infection and determine potential virus- and host-targeted inhibitors. This study elucidates the underlying virus-host interaction based on differentially expressed gene profiling, functional enrichment and pathway anal., protein-protein and protein-drug interactions utilizing the information on transcriptional response to SARS-CoV-2 infection from GSE147507 dataset containing COVID-19 case relative to healthy control and infected cell culture compared to uninfected one. Low IFN signaling, chemokines level elevation, and proinflammatory cytokines release were observed markedly. We identified MYC-rapamycin and ABCG2-rapamycin interactions, and unique gene signatures in case (regulation of protein modification and MAPK signaling) as well as in cell (metabolic dysregulation and interferon signaling) different from known COVID-19 genes. Among a plethora of repurposable drugs those appearing here with unique gene signatures might be helpful in COVID-19.

Journal of Drug Delivery and Therapeutics published new progress about Animal gene, c-myc Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 55981-09-4 belongs to class esters-buliding-blocks, name is 2-((5-Nitrothiazol-2-yl)carbamoyl)phenyl acetate, and the molecular formula is C12H9N3O5S, Quality Control of 55981-09-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Hao, Jing published the artcileTea plant roots respond to aluminum-induced mineral nutrient imbalances by transcriptional regulation of multiple cation and anion transporters, SDS of cas: 2044-85-1, the main research area is aluminum mineral nutrient cation anion transporter tea plant root; Aluminum tolerance; Ion imbalance; Ionome; Metal transporter; Transcriptome.

Tea is one of the most popular non-alc. beverages in the world for its flavors and numerous health benefits. The tea tree (Camellia sinensis L.) is a well-known aluminum (Al) hyperaccumulator. However, it is not fully understood how tea plants have adapted to tolerate high concentrations of Al, which causes an imbalance of mineral nutrition in the roots. Here, we combined ionomic and transcriptomic profiling alongside biochem. characterization, to probe the changes of metal nutrients and Al responsive genes in tea roots grown under increasing concentrations of Al. It was found that a low level of Al (~0.4 mM) maintains proper nutrient balance, whereas a higher Al concentration (2.5 mM) compromised tea plants by altering micro- and macro-nutrient accumulation into roots, including a decrease in calcium (Ca), manganese (Mn), and magnesium (Mg) and an increase in iron (Fe), which corresponded with oxidative stress, cellular damage, and retarded root growth. Transcriptome anal. revealed more than 1000 transporter genes that were significantly changed in expression upon Al exposure compared to control (no Al) treatments. These included transporters related to Ca and Fe uptake and translocation, while genes required for N, P, and S nutrition in roots did not significantly alter. Transporters related to organic acid secretion, together with other putative Al-tolerance genes also significantly changed in response to Al. Two of these transporters, CsALMT1 and CsALS8, were functionally tested by yeast heterologous expression and confirmed to provide Al tolerance. This study shows that tea plant roots respond to high Al-induced mineral nutrient imbalances by transcriptional regulation of both cation and anion transporters, and therefore provides new insights into Al tolerance mechanism of tea plants. The altered transporter gene expression profiles partly explain the imbalanced metal ion accumulation that occurred in the Al-stressed roots, while increases to organic acid and Al tolerance gene expression partly explains the ability of tea plants to be able to grow in high Al containing soils. The improved transcriptomic understanding of Al exposure gained here has highlighted potential gene targets for breeding or genetic engineering approaches to develop safer tea products.

BMC Plant Biology published new progress about Anion transporters Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 2044-85-1 belongs to class esters-buliding-blocks, name is 2′,7′-Dichloro-3-oxo-3H-spiro[isobenzofuran-1,9′-xanthene]-3′,6′-diyl diacetate, and the molecular formula is C24H14Cl2O7, SDS of cas: 2044-85-1.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Bononi, Monica published the artcileZeolite reduces losses and minimizes fractionation of various flavor compounds during EA-IRMS analysis, Application of Ethyl octanoate, the main research area is aromatic volatility zeolite fractionation EAIRMS analysis; EA-IRMS; Flavor compounds; Zeolite; δ(13)C.

Among the methods for confirming the natural origin of flavor compounds, δ13C measurements using IRMS technique are becoming increasingly important. EA-IRMS measures can suffer from errors caused by the volatility of the analyzed compounds and the consequent isotope fractionation. This work suggests a method involving the adsorption of volatile mols. in zeolite before the EA-IRMS anal., minimizing the possible error due to the volatility of the structures analyzed. The stabilizing effect on any fractionation was proven during the anal. of various mols. which cover a wide range of volatility. The work demonstrates that, by operating with the advised method, the repeatability of EA-IRMS data is very high not only for samples prepared before anal., but also for samples prepared in a time span of up to 6 h. The proposed method facilitates serial preparation and prevents erroneous results due to the natural volatility of the mols. under evaluation.

Food Chemistry published new progress about Aromatic compounds Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 106-32-1 belongs to class esters-buliding-blocks, name is Ethyl octanoate, and the molecular formula is C10H20O2, Application of Ethyl octanoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Voce, Sabrina published the artcileCompositional characterization of commercial sparkling wines from cv. Ribolla Gialla produced in Friuli Venezia Giulia, SDS of cas: 106-32-1, the main research area is Ribolla Gialla sparkling wine terpene norisoprenoid lipid.

Ribolla Gialla (RG) is a white grape variety used in the production of high-quality sparkling wines. It is cultivated in a limited area between Friuli Venezia Giulia (FVG-Northeast Italy) and Slovenia; for this reason, there is little information about the composition and chem. characteristics of the sparkling wines produced. This work used different anal. approaches (FTIR spectroscopy, UHPLC-MS/MS, liquid-liquid extraction, SPE and SPME-GC-MS) to characterize thirty-three com. sparkling RG wines from different areas of FVG. The characteristics included the overall volatile profile and content of terpenes, C13-norisoprenoids, lipids, and metabolites of aromatic amino acids. The aroma profile of RG wines was mainly characterized by fermentative esters and β-damascenone, whereas other norisoprenoids and varietal aromas were below the odor threshold. Appreciable amounts of certain fatty acids were found (e.g., palmitic acid), which could be potentially correlated with greater foam stability. However, high concentrations of aromatic amino acids metabolites highlighted a higher risk of developing atypical aging defects.

European Food Research and Technology published new progress about Esters Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 106-32-1 belongs to class esters-buliding-blocks, name is Ethyl octanoate, and the molecular formula is C10H20O2, SDS of cas: 106-32-1.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Voce, Sabrina published the artcileCompositional characterization of commercial sparkling wines from cv. Ribolla Gialla produced in Friuli Venezia Giulia, SDS of cas: 111-11-5, the main research area is Ribolla Gialla sparkling wine terpene norisoprenoid lipid.

Ribolla Gialla (RG) is a white grape variety used in the production of high-quality sparkling wines. It is cultivated in a limited area between Friuli Venezia Giulia (FVG-Northeast Italy) and Slovenia; for this reason, there is little information about the composition and chem. characteristics of the sparkling wines produced. This work used different anal. approaches (FTIR spectroscopy, UHPLC-MS/MS, liquid-liquid extraction, SPE and SPME-GC-MS) to characterize thirty-three com. sparkling RG wines from different areas of FVG. The characteristics included the overall volatile profile and content of terpenes, C13-norisoprenoids, lipids, and metabolites of aromatic amino acids. The aroma profile of RG wines was mainly characterized by fermentative esters and β-damascenone, whereas other norisoprenoids and varietal aromas were below the odor threshold. Appreciable amounts of certain fatty acids were found (e.g., palmitic acid), which could be potentially correlated with greater foam stability. However, high concentrations of aromatic amino acids metabolites highlighted a higher risk of developing atypical aging defects.

European Food Research and Technology published new progress about Esters Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 111-11-5 belongs to class esters-buliding-blocks, name is Methyl octanoate, and the molecular formula is C9H18O2, SDS of cas: 111-11-5.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics