Tag: M.W=250-300

Le Cong Huyen Bao Phan, Tran; Crepin, Nathalie; Rolland, Filip; Van Dijck, Patrick published the artcile< Two trehalase isoforms, produced from a single transcript, regulate drought stress tolerance in Arabidopsis thaliana>, Quality Control of 112-63-0, the main research area is Arabidopsis trehalase drought stress tolerance apoplast abscisic acid CPK10; Alternative translation initiation; Arabidopsis thaliana; Drought stress tolerance; TRE1; Trehalase; Trehalose.

Alternative translation initiation of the unique Arabidopsis trehalase gene allows for the production of two isoforms with different subcellular localization, providing enzyme access to both intra- and extra-cellular trehalose. The trehalose-hydrolyzing enzyme trehalase mediates drought stress tolerance in Arabidopsis thaliana by controlling ABA-induced stomatal closure. We now report the existence of two trehalase isoforms, produced from a single transcript by alternative translation initiation. The longer full-length N-glycosylated isoform (AtTRE1L) localizes in the plasma membrane with the catalytic domain in the apoplast. The shorter isoform (AtTRE1S) lacks the transmembrane domain and localizes in the cytoplasm and nucleus. The two isoforms can phys. interact and this interaction affects localization of AtTRE1S. Consistent with their role in plant drought stress tolerance, both isoforms are activated by AtCPK10, a stress-induced calcium-dependent guard cell protein kinase. Transgenic plants expressing either isoform indicate that both can mediate ABA-induced stomatal closure in response to drought stress but that the short (cytoplasmic/nuclear) isoform, enriched in those conditions, is significantly more effective.

Plant Molecular Biology published new progress about Arabidopsis thaliana. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Quality Control of 112-63-0.

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

Chaulet, Charlotte; Croix, Cecile; Alagille, David; Normand, Sylvain; Delwail, Adriana; Favot, Laure; Lecron, Jean-Claude; Viaud-Massuard, Marie-Claude published the artcile< Design, synthesis and biological evaluation of new thalidomide analogues as TNF-α and IL-6 production inhibitors>, Quality Control of 112-63-0, the main research area is thalidomide analog preparation cytokine tumor necrosis factor interleukin inhibition.

Several thalidomide analogs were synthesized and compared to thalidomide and its more active analog, lenalidomide, for their ability to inhibit the production of the pro-inflammatory cytokine tumor necrosis factor (TNF)-α and interleukin (IL)-6 by LPS-activated peripheral blood mononuclear cells (PBMCs). Among these compounds, two analogs containing sulfonyl group displayed interesting downregulation of TNF-α and IL-6 production

Bioorganic & Medicinal Chemistry Letters published new progress about Amides Role: PAC (Pharmacological Activity), RCT (Reactant), SPN (Synthetic Preparation), THU (Therapeutic Use), BIOL (Biological Study), RACT (Reactant or Reagent), PREP (Preparation), USES (Uses). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Quality Control of 112-63-0.

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

Cao, Yan; Farahmand, Mehdi; Fosshat, Saeed; Rezaei, Sina; Pourmomen Arabi, Leila; Liu, Peng published the artcile< Potential of aluminum nitride nanocone as a chemical sensor for anticancer drug detection>, Computed Properties of 112-63-0, the main research area is aluminum nitride nanocone chem sensor anticancer drug.

The adsorption of temozolomide (TMZ) onto an aluminum nitride nanocone (AlNNC) was inspected via d. functional theory (DFT) computations. The energy of adsorption for TMZ on the surface of the AlNNC was estimated to be approx. -17.88 kcal/mol. Owing to steric hindrance, an increase in the number of TMZ mols. resulted in less neg. adsorption energy values per mol. In this study, we proposed an electrostatic interaction as the mechanism between TMZ and the AlNNC. After the adsorption of TMZ onto the surface of the AlNNC, the elec. conductivity of this nanocone increased dramatically by approx. 41.98%, showing that it can be used as a drug detector. Moreover, the AlNNC-TMZ complex has higher stability in water according to solvation energy calculations Finally, based on our results, the AlNNC could selectively detect TMZ moieties among environmental contaminants.

Computational & Theoretical Chemistry published new progress about Adsorption energy. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Computed Properties of 112-63-0.

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

Huynh, Kenny W.; Pamenter, Matthew E. published the artcile< Lactate inhibits naked mole-rat cardiac mitochondrial respiration>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is lactate mitochondrial respiration heart; Electron transport system; Hypoxia; Lactate dehydrogenase; Oxidative phosphorylation.

In aerobic conditions, the proton-motive force drives oxidative phosphorylation (OXPHOS) and the conversion of ADP to ATP. In hypoxic environments, OXPHOS is impaired, resulting in energy shortfalls and the accumulation of protons and lactate. This results in cellular acidification, which may impact the activity and/or integrity of mitochondrial enzymes and in turn neg. impact mitochondrial respiration and thus aerobic ATP production Naked mole-rats (NMRs) are among the most hypoxia-tolerant mammals and putatively experience intermittent hypoxia in their underground burrows. However, if and how NMR cardiac mitochondria are impacted by lactate accumulation in hypoxia is unknown. Author predicted that lactate alters mitochondrial respiration in NMR cardiac muscle. To test this, author used high-resolution respirometry to measure mitochondrial respiration in permeabilized cardiac muscle fibers from NMRs exposed to 4 h of in vivo normoxia (21% O2) or hypoxia (7% O2). Author found that: (1) cardiac mitochondria cannot directly oxidize lactate, but surprisingly, (2) lactate inhibits mitochondrial respiration, and (3) decreases complex IV maximum respiratory capacity. Finally, (4) in vivo hypoxic exposure decreases the magnitude of lactate-mediated inhibition of mitochondrial respiration. Taken together, author results suggest that lactate may retard electron transport system function in NMR cardiac mitochondria, particularly in normoxia, and that NMR hearts may be primed for anaerobic metabolism

Journal of Comparative Physiology, B: Biochemical, Systems, and Environmental Physiology published new progress about Acidification. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate.

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

Boddaert, Thomas; Francois, Cyril; Mistico, Laetitia; Querolle, Olivier; Meerpoel, Lieven; Angibaud, Patrick; Durandetti, Muriel; Maddaluno, Jacques published the artcile< Anionic Access to Silylated and Germylated Binuclear Heterocycles>, Electric Literature of 112-63-0, the main research area is silylated germylated binuclear heterocycle preparation; cyclization; heterocycles; lithium; reaction mechanisms; rearrangement.

A simple access to silylated and germylated binuclear heterocycles, based on an original anionic rearrangement, is described. A set of electron-rich and electron-poor silylated aromatic and heteroaromatic substrates were tested to understand the mechanism and the factors controlling this rearrangement, in particular its regioselectivity. This parameter was shown to follow the rules proposed before from a few examples. Then, the effect of the substituents borne by the silicon itself, in particular the selectivity of the ligand transfer, was studied. Addnl., this chem. was extended to germylated substrates. A hypervalent germanium species, comparable to the putative intermediate proposed with silicon, seems to be involved. However, a pathway implicating the elimination of LiCH2Cl was observed for the first time with this element, leading to unexpected products of the benzo-oxa (or benzo-aza) germol-type.

Chemistry – A European Journal published new progress about Heterocyclic compounds Role: SPN (Synthetic Preparation), PREP (Preparation) (silicon and germanium). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Electric Literature of 112-63-0.

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

Feng, Junfeng; Fan, Teng; Ma, Changyue; Xu, Yangyang; Jiang, Jianchun; Pan, Hui published the artcile< Collaborative Conversion of Biomass Carbohydrates into Valuable Chemicals: Catalytic Strategy and Mechanism Research>, Electric Literature of 112-63-0, the main research area is biomass carbohydrate valuable chem catalytic strategy mechanism; collaborative conversion; levulinates; lignocellulose; zeolite.

Levulinate is one of the high added-value biomass-derived chems. that is primarily produced from hexoses in cellulose and hemicellulose. Producing levulinate from pentoses in hemicellulose that is extensively distributed in biomass is still highly challenging. In this study, biomass materials and carbohydrates (including cellulose, xylan, glucose, fructose, and xylose) were collaboratively converted into levulinates efficiently over various zeolites with ethanol/dimethoxymethane as cosolvents. The key process for converting pentoses into levulinates is the synthesis of intermediates (furfural) into alkoxy Me furfural via electrophilic substitution or their conversion into furfuryl alc. via in situ hydrogenation. The substitution was achieved by the synergic effect between bifunctional catalysts and cosolvents, which promotes conversion of furfural into alkoxy Me furfural via the electrophilic addition of alkoxy Me radicals. Hydrogenation of furfural into furfuryl alc. was impelled by the cooperative process between in situ generated H-donor from alc. solvents and zeolite catalysts. Moreover, a favorable yield of 21.05 mol % of levulinates was achieved by simultaneous and collaborative conversion of cellulose and hemicellulose with the one-pot process using ethanol/dimethoxymethane as a cosolvent and the zeolite with B and L acid sites as a catalyst.

Journal of Agricultural and Food Chemistry published new progress about Bagasse. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Electric Literature of 112-63-0.

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

Ashalatha, K. S.; Raja, Shantha Reddy A.; Raveesha, H. R. published the artcile< Evaluation of phytochemical compounds and antimicrobial activities of Hemidesmus indicus>, Application of C19H34O2, the main research area is Hemidesmus phytochem antibacterial Bioactive coumarins emodols flavonoids.

The present study was aimed to investigate the phytochem. screening, antibacterial activities, and identification of bioactive compounds by gas chromatog.-mass spectrometry (GC-MS) and high-performance liquid chromatog. (HPLC) in Hemidesmus indicus root extracts The qual. and quant. phytochem. anal. was carried out using standard methods. Bioactive compounds were identified by GC-MS and HPLC anal. Antibacterial activity of different solvent extracts was carried out using the agar well diffusion method. Preliminary phytochem. anal. showed the presence of phenols, tannins, alkaloids, flavonoids, proteins, reducing sugar, glycosides, amino acids, steroids, terpenoids, resins, volatile oil, emodols, and coumarins. Total phenolic and flavonoid contents were higher in the methanolic extracts compared to other solvent extracts 2-hydroxy 4-methoxy benzaldehyde was identified as the major compound The maximum zone of inhibition was observed in the methanolic extracts of root against Klebsiella pneumoniae, Staphylococcus aureus, and Escherichia coli. Our results suggest that H. indicus plant contains many chem. compounds and its root exhibits the wide range of antimicrobial activity. Further studies have to be carried out regarding the in vitro multiplication of plant and to enhance the root flavoring compounds for medicinal, food, and beverage industries.

Asian Journal of Pharmaceutical and Clinical Research published new progress about Alkaloids Role: THU (Therapeutic Use), BIOL (Biological Study), USES (Uses). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Application of C19H34O2.

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

Jo, Ara; Bae, Jin Hee; Yoon, Yu Jeong; Chung, Tae Hun; Lee, Eun-Woo; Kim, Young-Ho; Joh, Hea Min; Chung, Jin Woong published the artcile< Plasma-activated medium induces ferroptosis by depleting FSP1 in human lung cancer cells>, Related Products of 347174-05-4, the main research area is FSP1 ferroptosis anticancer agent lung cancer.

Cold atm. plasma (CAP) that generates reactive oxygen species (ROS) has received considerable scientific attentions as a new type of anticancer. In particular, an indirect treatment method of inducing cancer cell death through plasma-activated medium (PAM), rather than direct plasma treatment has been well established. Although various cell death pathways such as apoptosis, necroptosis, and autophagy have been suggested to be involved in PAM-induced cell death, the involvement of ferroptosis, another type of cell death regulated by lipid ROS is largely unknown. This study reports, that PAM promotes cell death via ferroptosis in human lung cancer cells, and PAM increases intracellular and lipid ROS, thereby resulting in mitochondrial dysfunction. The treatment of cells with N-acetylcysteine, an ROS scavenging agent, or ferrostatin-1, a ferroptosis inhibitor, protects cells against PAM-induced cell death. Interestingly, ferroptosis suppressor protein 1 (FSP1) is downregulated upon PAM treatment. Furthermore, the treatment of cells with iFSP1, an inhibitor of FSP1, further enhances PAM-induced ferroptosis. Finally, this study demonstrates that PAM inhibits tumor growth in a xenograft model with an increase in 4-hydroxynoneal and PTGS2, a byproduct of lipid peroxidation, and a decrease in FSP1 expression. This study will provide new insights into the underlying mechanism and therapeutic strategies of PAM-mediated cancer treatment.

Cell Death & Disease published new progress about Animal gene Role: BSU (Biological Study, Unclassified), PRP (Properties), BIOL (Biological Study) (NCOA7). 347174-05-4 belongs to class esters-buliding-blocks, and the molecular formula is C15H22N2O2, Related Products of 347174-05-4.

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

Alamudun, Sophya F.; Tanovitz, Kyle; Fajardo, April; Johnson, Kaitlind; Pham, Andy; Jamshidi Araghi, Tina; Petit, Andrew S. published the artcile< Structure-Photochemical Function Relationships in Nitrogen-Containing Heterocyclic Aromatic Photobases Derived from Quinoline>, Formula: C19H34O2, the main research area is nitrogen containing heterocyclic aromatic photobasicity structure photochem function relationship.

Photobases are compounds that become strong bases after electronic excitation. Recent exptl. studies have highlighted the photobasicity of the 5-R quinoline compounds, demonstrating a strong substituent dependence to the pKa*. In this paper, we describe our systematic study of how the thermodn. driving force for photobasicity is tuned through substituents in four families of nitrogen-containing heterocyclic aromatics We show that substituent position and identity both significantly impact the pKa*. We demonstrate that the substituent effects are additive and identify many disubstituted compounds with substantially greater photobasicity than the most photobasic 5-R quinoline compound identified previously. We show that the addition of a second fused benzene ring to quinoline, along with two electron-donating substituents, lowers the S0 → SPBS vertical excitation energy into the visible region while still maintaining a pKa* > 14. Overall, the structure-function relationships developed in this study provide new insights to guide the development of new photocatalysts that employ photobasicity.

Journal of Physical Chemistry A published new progress about Aromatic nitrogen heterocycles Role: PRP (Properties). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Formula: C19H34O2.

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

Jo, Jasmin; Schiff, David published the artcile< Current Considerations in the Treatment of Grade 3 Gliomas.>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is 1p/19q codeletion; IDH inhibitors; IDH mutation; Oligodendroglioma; WHO grade 3 astrocytoma.

OPINION STATEMENT: Treatment recommendations for grade 3 gliomas are guided by their histopathologic and molecular phenotype. In the 2021 WHO classification, these tumors are categorized into two types, grade 3 IDH mutant (IDHmt), 1p/19q codeleted oligodendroglioma and IDH mutant astrocytoma. Treatment consists of maximal safe surgery, followed by radiation therapy (RT) and alkylating agent-based chemotherapy. Based on the updated CATNON result, RT followed by temozolomide improves outcome in patients with non-codeleted grade 3 IDHmt astrocytoma. In patients with IDHmt, codeleted oligodendroglioma, the addition of procarbazine, CCNU, and vincristine regimen is the recommended treatment, based on large randomized controlled trials. These current treatments prolong the overall survival to up to 10 years in patients with grade 3 IDHmt astrocytoma and 14 years in grade 3 IDHmt codeleted oligodendroglioma. Treatment options at recurrence include re-resection, re-irradiation, and other cytotoxic chemotherapy; however, these are of limited benefit. Novel agents targeting IDH mutation and its metabolic effects are currently under investigation to improve the outcome of these patients.

Current treatment options in oncology published new progress about 112-63-0. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate.

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