Category: 112-63-0

Al-Hussaini, Jinan Abdul-Amir Sabeeh; Hatem, Oraas Adnan; Alebady, Zainab Adnan Hatem published the artcile< Determination of chemical potential for stavudine (D4T) diffusion through SDS micelle solution>, Reference of 112-63-0, the main research area is chem potential stavudine cell membrane diffusion SDS micelle solution.

This study include a spectroscopic measurements of Stavudine diffusion in cell membrane alternative model in two different polar solutions; buffer phosphate solution (Polar solution) and N-Hexane (Non-polar solution). Consistent with the standard values, a clear maximum absorption peaks at 266 nm was noted for Stavudine in buffer phosphate solution The data also showed that the value of the extension coefficient and λmaxreduced in the non-polar medium compare to polar medium which was noted a s a part of the spectroscopic properties of Stavudine in polar and non-polar medium. Stavudine express a high stability with time in pH 7.4 . SDS was used as a cell membranes substitute model, and the diffusion rate of Stavudine through SDS micelles solution (with a concentration of 0.2 x10-2 M)was examined The chem. potential was calculated which was equal to -2489.4 J mol-1 which indicate the impulsiveness of the diffusion process for the compound The results suggested that Stavudine can diffuse (in a rate constant of 0.0183 min-1)to inside micelle from the aqueous medium. Of other detected factors; the equilibrium constant for diffusion rate was detected and was equal to 2.7313.

Systematic Reviews in Pharmacy published new progress about Cell membrane. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Reference of 112-63-0.

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

Rana, Payal; Aleo, Michael D.; Wen, Xuerong; Kogut, Stephen published the artcile< Hepatotoxicity reports in the FDA adverse event reporting system database: A comparison of drugs that cause injury via mitochondrial or other mechanisms>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is human liver injury hepatotoxicity adverse event benzbromarone troglitazone; AE, adverse event; Adverse event reporting; CI, confidence interval; CNS, center nervous system; DILI, drug-induced liver injury; DNA, deoxyribonucleic acid; Drug-induced liver injury; FAERS database; FAERS, FDA’s Adverse Event Reporting System; FDA, US Food and Drug Administration; Hepatotoxicity; MedDRA, Medical Dictionary for Regulatory Activities; Mitochondrial toxicity; NCTR-LTKB, National Center for Toxicological Research-Liver Toxicity Knowledge Base; NSAID, nonsteroidal anti-inflammatory drugs; ROR, Reporting Odds Ratio.

Drug-induced liver injury (DILI) is a leading reason for preclin. safety attrition and post-market drug withdrawals. Drug-induced mitochondrial toxicity has been shown to play an essential role in various forms of DILI, especially in idiosyncratic liver injury. This study examined liver injury reports submitted to the Food and Drug Administration (FDA) Adverse Event Reporting System (FAERS) for drugs associated with hepatotoxicity via mitochondrial mechanisms compared with non-mitochondrial mechanisms of toxicity. The frequency of hepatotoxicity was determined at a group level and individual drug level. A reporting odds ratio (ROR) was calculated as the measure of effect. Between the two DILI groups, reports for DILI involving mitochondrial mechanisms of toxicity had a 1.43 (95% CI 1.42-1.45; P < 0.0001) times higher odds compared to drugs associated with non-mitochondrial mechanisms of toxicity. Antineoplastic, antiviral, analgesic, antibiotic, and antimycobacterial drugs were the top five drug classes with the highest ROR values. Although the top 20 drugs with the highest ROR values included drugs with both mitochondrial and non-mitochondrial injury mechanisms, the top four drugs (ROR values > 18: benzbromarone, troglitazone, isoniazid, rifampin) were associated with mitochondrial mechanisms of toxicity. The major demog. influence for DILI risk was also examined There was a higher mean patient age among reports for drugs that were associated with mitochondrial mechanisms of toxicity [56.1 ± 18.33 (SD)] compared to non-mitochondrial mechanisms [48 ± 19.53 (SD)] (P < 0.0001), suggesting that age may play a role in susceptibility to DILI via mitochondrial mechanisms of toxicity. Univariate logistic regression anal. showed that reports of liver injury were 2.2 (odds ratio: 2.2, 95% CI 2.12-2.26) times more likely to be associated with older patient age, as compared with reports involving patients less than 65 years of age. Compared to males, female patients were 37% less likely (odds ratio: 0.63, 95% CI 0.61-0.64) to be subjects of liver injury reports for drugs associated with mitochondrial toxicity mechanisms. Given the higher proportion of severe liver injury reports among drugs associated with mitochondrial mechanisms of toxicity, it is essential to understand if a drug causes mitochondrial toxicity during preclin. drug development when drug design alternatives, more clin. relevant animal models, and better clin. biomarkers may provide a better translation of drug-induced mitochondrial toxicity risk assessment from animals to humans. Our findings from this study align with mitochondrial mechanisms of toxicity being an important cause of DILI, and this should be further investigated in real-world studies with robust designs. Acta Pharmaceutica Sinica B published new progress about Aging, animal. 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

Ban, Qingfu; Li, Yan; Qin, Yusheng; Zheng, Yaochen; Kong, Jie published the artcile< Intramolecular cyclization in hyperbranched star copolymers via one-pot Am+Bn+C1 step-growth polymerization resulting in decreased cyclic defect>, Category: esters-buliding-blocks, the main research area is intramol cyclization hyperbranched polyester polyacetylene polyoxyalkylene self assembly; step growth polymerization hyperbranched.

Hyperbranched star copolymers are important soft materials that have been employed for aqueous self-assembly and bioapplication, but their one-pot one-batch synthesis strategy and relevant topol. are rarely discussed. In this contribution, we produce hyperbranched star poly(vinyl ether ester)s (mPEG-hb-PVEEs) amphiphiles with multimodal mol. weight distribution via one-pot one-batch Am+Bn+C1 (m ≥ 2, n ≥ 3) step-growth polymerization Based on the topol. anal. of these hyperbranched star copolymers, a convenient expression of the number ratio of monomeric structural units (NA/NB) is deduced to describe the cyclic defect of intramol. cyclization only by using proton NMR spectroscopy. The introduction of long-chain terminators and the change in the molar feed ratio of A2:B3:C1 considerably affect the NA/NB so as to give rise to increased influence of number of macromols. and decreased influence of intramol. cyclization, which are then responsible for an aqueous self-assembly behavior of mPEG-hb-PVEEs amphiphiles. Overall, this study opens new possibilities for the precise description of intramol. cyclization and controllable synthesis of hyperbranched star copolymers via one-pot Am+Bn+C1 step-growth polymerization

European Polymer Journal published new progress about Amphiphiles. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Category: esters-buliding-blocks.

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

Van den Berg, Otto; Sengers, Wilco G. F.; Jager, Wolter F.; Picken, Stephen J.; Wuebbenhorst, Michael published the artcile< Dielectric and Fluorescent Probes To Investigate Glass Transition, Melt, and Crystallization in Polyolefins>, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is dibutylaminonitrostilbene dielec fluorescent probe polymer glass transition; melt crystallization polyolefin dielec fluorescent probe spectroscopy.

Study of glass transition dynamics in polyolefins by broadband dielec. spectroscopy (DRS) is facilitated by the addition of a dielec. probe, 4,4′-(N,N-dibutylamino)-(E)-nitrostilbene (DBANS), which introduces dipoles, i.e., makes the polymers become dielec. active. For probe concentrations between 0.1% and 1.0% the dielec. strength Δε associated with the dynamic glass transition increases proportionally to the probe concentration for LDPE, isotactic polypropylene, and atactic polystyrene. This result indicates that the probe exhibits no intramol. relaxations, and the probe rotational diffusion effectively senses the microviscosity of the probe environment on the length scale of the segmental dynamics. Temperature-dependent fluorescence spectroscopy on doped polymers shows no changes in fluorescence wavelength around the glass transition temperature Crystallization and melting of the polyolefin matrix results in an increase or decrease of the probe concentration in the amorphous phase, which was clearly detected by real-time fluorescence because the probe emission is sensitive to the probe content, particularly at higher probe concentrations

Macromolecules published new progress about Crystallization. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate.

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

Kramer, Konrad; Kepp, Gabi; Brock, Judith; Stutz, Simon; Heyer, Arnd G. published the artcile< Acclimation to elevated CO2 affects the C/N balance by reducing de novo N-assimilation>, HPLC of Formula: 112-63-0, the main research area is carbon dioxide de novo nitrogen balance assimilation.

Plants exposed to elevated atm. CO2 concentrations show an increased photosynthetic activity. However, after prolonged exposure, the activity declines. This acclimation to elevated CO2 is accompanied by a rise in the carbon-to-nitrogen ratio of the biomass. Hence, increased sugar accumulation and sequential downregulation of photosynthetic genes, as well as nitrogen depletion and reduced protein content, have been hypothesized as the cause of low photosynthetic performance. However, the reason for reduced nitrogen content in plants at high CO2 is unclear. Here, we show that reduced photorespiration at increased CO2-to-O2 ratio leads to reduced de novo assimilation of nitrate, thus shifting the C/N balance. Metabolic modeling of acclimated and non-acclimated plants revealed the photorespiratory pathway to function as a sink for already assimilated nitrogen during the light period, providing carbon skeletons for de novo assimilation. At high CO2, low photorespiratory activity resulted in diminished nitrogen assimilation and eventually resulted in reduced carbon assimilation. For the hpr1-1 mutant, defective in reduction of hydroxy-pyruvate, metabolic simulations show that turnover of photorespiratory metabolites is expanded into the night. Comparison of simulations for hpr1-1 with those for the wild type allowed investigating the effect of a perturbed photorespiration on N-assimilation.

Physiologia Plantarum published new progress about Arabidopsis thaliana. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, HPLC of Formula: 112-63-0.

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

Oehlke, J.; Schroetter, E.; Dove, S.; Schick, H.; Niedrich, H. published the artcile< Preparation of some 4- and 5-substituted pyridine-2-carboxylic acids as fusaric acid analogs>, Formula: C19H34O2, the main research area is pyridinecarboxylic acid dopamine hydroxylase inhibitor; fusaric acid dopamine hydroxylase inhibitor.

5-Substituted picolinic acids I (R = NO2, NH2, NHAc, NHCOEt, NHOH, iodo, Br, OH, MeO, PrO, BuO; R1 = H) and 4-substituted fusaric acids I (R = Bu, R1 = NO2, MeO, EtO, Cl, NH2, NHOH, Me), selected by a random sampling procedure suitable for small series, were prepared for future studies on the structure-activity relationships involved in the inhibition of dopamine β-hydroxylase. The known preparation of I (R = NO2, R1 = H) via a Rosenmund-von Braun reaction with 2-bromo-5-nitropyridine was significantly improved. I (R = OH, R1 = H), easily accessible via the same method, was converted into 5-alkoxypicolinic acids by reaction with alkyl halides in DMSO in the presence of Ag2O. I (R = Bu) were prepared via 5-butyl-2-methyl-4-nitropyridine N-oxide.

Pharmazie published new progress about Antihypertensives. 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

Stoermer, R. published the artcile< Esterifications by ultraviolet light>, Electric Literature of 112-63-0, the main research area is .

Believing that cis-trans-dicarboxylic acids of cyclic saturated hydrocarbons might undergo a rearrangement similar to that of stable unsaturated acids into their labile forms, trans-hexahydro-p-phthalic acid was exposed 10 days in MeOH to an uviol lamp; there was no rearrangement, however, and only 10% of the trans-monomethyl ester, needles, m. 125°, was no obtained; after 14 days’ illumination, 10% of the di-Me ester, m. 71°, is obtained. Similarly, trans-pentamethylene-1,2-dicarboxylic acid after 10 days gives the trans-monomethyl ester, needles, m. 45°; after 30 days, about 10% each of the mono-Me and dimethyl ester, oil of disagreeable odor. BzOH after 8 days gives about 30% BzOMe; if a trace of HCl is added, the yield of ester is increased to about 56%. PhCH:CHCO2H is not perceptibly esterified in pure MeOH, but if a very small amount of HCl is added 4 g. acid after 8 days yields 2.5 g. of a mixture of stable and allo-acids and 1.5 g. of practically pure stable ester.

Berichte der Deutschen Chemischen Gesellschaft published new progress about Esterification. 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

Sui, Zongming; Huang, Jianguo; Yuan, Ling published the artcile< Ceriporia lacerata HG2011 enhances P mobilization and wheat agronomic performance irrespective of P fertilization levels>, COA of Formula: C19H34O2, the main research area is Ceriporia lacerate phosphorus fertilization wheat agronomic level; colonization; fertilization; nutrient uptake; phosphate-mobilizing micro-organism; soil phosphorus.

To identify soil phosphorus (P) mobilization and wheat agronomic performance in response to the P mobilizer Ceriporia lacerata HG2011 could provide a new strategy for improving fertilizer P efficiency in wheat cultivation. Liquid culture showed that C. lacerata HG2011 converted Ca3(PO4)2, FePO4, AlPO4, phytate, lecithin and RNA into soluble inorganic P, which was stimulated by ammonium and urea but less influenced by P supply. In the incubation experiment, this fungus colonized on wheat roots, and mobilized P in the soils regardless of Olsen P levels. The efflux of protons, organic acids and phosphatase could be involved in insoluble P mobilization. In the greenhouse pot experiment, C. lacerata HG2011 increased soil Olsen P under different P fertilization levels, improved wheat P uptake by 15.39%-28.70%, P fertilizer use efficiency by 4.26%-13.04% and grain yield by 12.24%-22.39%. Ceriporia lacerata HG2011 was able to colonize on wheat roots, mobilize P in soils and improve wheat agronomic performance irresp. of P fertilization levels. Ceriporia lacerata HG2011 could be used to enhance the quality of compost or as a bio-fertilizer for P mobilization in modern sustainable agriculture.

Journal of Applied Microbiology published new progress about Bacterial fertilizers Role: AGR (Agricultural Use), BIOL (Biological Study), USES (Uses). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, COA of Formula: C19H34O2.

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

Gharieb, Shimaa Abdallah; Dorgham, Yousra; Abdelgawad, Mohamed; Abdelhai, Shaimaa Farouk published the artcile< Survival of glioblastoma multiforme patients treated with hypofractionated radiotherapy with integrated boost plus temozolomide>, SDS of cas: 112-63-0, the main research area is anticancer temozolomide radiotherapy prognosis glioblastoma.

Despite recent advances in multimodal treatments, the glioblastoma multiforme (GBM) prognosis remains poor. Hypofractionated radiotherapy regimens have been increasingly adopted for treatment of glioblastoma. To assess the survival rate when using hypofractionated radiotherapy with simultaneous integrated boost concurrently with temozolomide in treatment of GBM. The prospective study was conducted to forty-eight GBM patients referred to the Clin. Oncol. & Nuclear Medicine Department, Zagazig University Hospitals, from August 2019 to August 2021. The patients weres divided in two arms, Arm A include 24 patients treated prospectively by Hypofractionated radiotherapy with simultaneous integrated boost at a dose 50 Gy in 16 fractions, 3.12 Gy per fraction to high-risk planning target volume (PTV) and 40 Gy in 16 fractions, 2.5 Gy per fraction to low-risk PTV concurrently with TMZ and compared with Arm B that include 24 patients treated prospectively by conventional radiotherapy at a dose 60Gy / 30 fractions (phase I 46 Gy / 23 fractions and phase II 14 Gy / 7 fractions) concurrently with TMZ. Main outcome measures: Hypofractionated radiotherapy with integrated boost outcomes. For group A, 6 mo OS (78.4%) and 12 mo OS (43.6%), group B, 6 mo OS (75%) and 12 mo OS (52.5%). For group A the 6 mo PFS rate was (59.2%) while 12 mo PFS rate was (43.1%).For group B the 6 mo PFS rate was (50.5%) while 12 mo PFS rate was (39.8%) with no statistically significant difference between both groups. Hypofractionated radiotherapy shows promising comparable survival outcomes to conventional radiotherapy.

Latin American Journal of Pharmacy published new progress about Antitumor agents. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, SDS of cas: 112-63-0.

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

Sen, Arko; Prager, Briana C.; Zhong, Cuiqing; Park, Donglim; Zhu, Zhe; Gimple, Ryan C.; Wu, Qiulian; Bernatchez, Jean A.; Beck, Sungjun; Clark, Alex E.; Siqueira-Neto, Jair L.; Rich, Jeremy N.; McVicker, Graham published the artcile< Leveraging allele-specific expression for therapeutic response gene discovery in glioblastoma>, Related Products of 112-63-0, the main research area is temozolomide olaparib anticancer agent prognosis Zika virus glioblastoma adult.

Glioblastoma is the most prevalent primary malignant brain tumor in adults and is characterized by poor prognosis and universal tumor recurrence. Effective glioblastoma treatments are lacking, in part due to somatic mutations and epigenetic reprogramming that alter gene expression and confer drug resistance. To investigate recurrently dysregulated genes in glioblastoma, we interrogated allele-specific expression (ASE), the difference in expression between two alleles of a gene, in glioblastoma stem cells (GSC) derived from 43 patients. A total of 118 genes were found with recurrent ASE preferentially in GSCs compared with normal tissues. These genes were enriched for apoptotic regulators, including schlafen family member 11 (SLFN11). Loss of SLFN11 gene expression was associated with aberrant promoter methylation and conferred resistance to chemotherapy and PARP inhibition. Conversely, low SLFN11 expression rendered GSCs susceptible to the oncolytic flavivirus Zika. This discovery effort based upon ASE revealed novel points of vulnerability in GSCs, suggesting a potential alternative treatment strategy for chemotherapy-resistant glioblastoma.

Cancer Research published new progress about Adult, mammalian. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Related Products of 112-63-0.

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