Category: 112-63-0

Ziu, Mateo; Goyal, Sharad; Olson, Jeffrey J. published the artcile< Congress of Neurological Surgeons systematic review and evidence-based guidelines update on the role of radiation therapy in the management of progressive and recurrent glioblastoma in adults>, Product Details of C19H34O2, the main research area is meta analysis temozolomide anticancer radiation therapy adult recurrent glioblastoma; Adult; Brain tumor; Glioblastoma; Glioma; Progressive; Radiation therapy; Radiosurgery; Recurrent.

These recommendations apply to adult patients (18 years of age and above) with progressive/recurrent glioblastoma multiforme (pGBM) after first line combined multimodality treatment. Can re-irradiation (by using conventional radiotherapy, fractionated radiosurgery, or single fraction radiosurgery) be used in patients with pGBM after the first adjuvant combined multimodality treatment with radiation and chemotherapy. Level III: When the target tumor is amenable for addnl. radiation, re-irradiation is recommended as it provides improved local tumor control, as measured by best imaging response. Such re-irradiation can take the form of conventional fractionation radiotherapy, fractionated radiosurgery, or single fraction radiosurgery. Level III: Re-Irradiation is recommended in order to maintain or improve a patients neurol. status and quality of life prior to any further tumor progression.

Journal of Neuro-Oncology published new progress about Adult, mammalian. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Product Details of C19H34O2.

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

Netto, J B; Melo, E S A; Oliveira, A G S; Sousa, L R; Santiago, L R; Santos, D M; Chagas, R C R; Gonçalves, A S; Thomé, R G; Santos, H B; Reis, R M; Ribeiro, R I M A published the artcile< Matteucinol combined with temozolomide inhibits glioblastoma proliferation, invasion, and progression: an in vitro, in silico, and in vivo study.>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is .

Glioblastoma is the most prevalent and malignant brain tumor identified in adults. Surgical resection followed by radiotherapy and chemotherapy, mainly with temozolomide (TMZ), is the chosen treatment for this type of tumor. However, the average survival of patients is around 15 months. Novel approaches to glioblastoma treatment are greatly needed. Here, we aimed to investigate the anti-glioblastoma effect of the combination of matteucinol (Mat) (dihydroxyflavanone derived from Miconia chamissois Naudin) with the chemotherapeutic TMZ in vitro using tumor (U-251MG) and normal astrocyte (NHA) cell lines and in vivo using the chick embryo chorioallantoic membrane (CAM) assay. The combination was cytotoxic and selective for tumor cells (28 μg/mL Mat and 9.71 μg/mL TMZ). Additionally, the combination did not alter cell adhesion but caused morphological changes characteristic of apoptosis in vitro. Notably, the combination was also able to reduce tumor growth in the chick embryo model (CAM assay). The docking results showed that Mat was the best ligand to the cell death membrane receptor TNFR1 and to TNFR1/TMZ complex, suggesting that these two molecules may be working together increasing their potential. In conclusion, Mat-TMZ can be a good candidate for pharmacokinetic studies in view of clinical use for the treatment of glioblastoma.

Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas 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

Naismith, Robert T.; Wundes, Annette; Ziemssen, Tjalf; Jasinska, Elzbieta; Freedman, Mark S.; Lembo, Anthony J.; Selmaj, Krzysztof; Bidollari, Ilda; Chen, Hailu; Hanna, Jerome; Leigh-Pemberton, Richard; Lopez-Bresnahan, Maria; Lyons, Jennifer; Miller, Catherine; Rezendes, David; Wolinsky, Jerry S.; The EVOLVE-MS-2 Study Group published the artcile< Diroximel Fumarate Demonstrates an Improved Gastrointestinal Tolerability Profile Compared with Dimethyl Fumarate in Patients with Relapsing-Remitting Multiple Sclerosis: Results from the Randomized, Double-Blind, Phase III EVOLVE-MS-2 Study>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is diroximel fumarate gastrointestinal tolerability prole human.

Abstract: Background: Diroximel fumarate (DRF) is a novel oral fumarate approved in the USA for relapsing forms of multiple sclerosis. DRF is converted to monomethyl fumarate, the pharmacol. active metabolite of di-Me fumarate (DMF). DRF 462 mg and DMF 240 mg produce bioequivalent exposure of monomethyl fumarate and are therefore expected to have similar efficacy/safety profiles; the distinct chem. structure of DRF may contribute to its tolerability profile. Objectives: The objective of this study was to compare the gastrointestinal tolerability of DRF and DMF over 5 wk in patients with relapsing-remitting multiple sclerosis. Methods: EVOLVE-MS-2 was a phase III, randomized, double-blind, head-to-head, 5-wk study evaluating the gastrointestinal tolerability of DRF 462 mg vs DMF 240 mg, administered twice daily in patients with relapsing-remitting multiple sclerosis, using two self-administered gastrointestinal symptom scales: Individual Gastrointestinal Symptom and Impact Scale (IGISIS) and Global Gastrointestinal Symptom and Impact Scale (GGISIS). The primary endpoint was the number of days with an IGISIS intensity score ≥ 2 relative to exposure. Other endpoints included the degree of gastrointestinal symptom severity measured by IGISIS/GGISIS and assessment of safety/tolerability. Results: DRF-treated patients experienced a statistically significant reduction (46%) in the number of days with an IGISIS symptom intensity score ≥ 2 compared with DMF-treated patients (rate ratio [95% confidence interval]: 0.54 [0.39-0.75]; p = 0.0003). Lower rates of gastrointestinal adverse events (including diarrhea, nausea, vomiting, and abdominal pain) were observed with DRF than DMF (34.8% vs 49.0%). Fewer patients discontinued DRF than DMF because of adverse events (1.6% vs 5.6%) and gastrointestinal adverse events (0.8% vs 4.8%). Conclusions: DRF demonstrated an improved gastrointestinal tolerability profile compared with DMF, with less severe gastrointestinal events and fewer days of self-assessed gastrointestinal symptoms, fewer gastrointestinal adverse events, and lower discontinuation rates because of gastrointestinal adverse events. Clin. Trials Registration: ClinicalTrials.gov (NCT03093324).

CNS Drugs published new progress about Abdominal pain. 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

Hasegawa, Masatoshi; Yamasaki, Yuko; Sonta, Nanae; Shindo, Yoichi; Sugimura, Tokuko; Kitahara, Ayao published the artcile< Clustering of Aerosol OT Reversed Micelles As Studied by Nonradiative Energy Transfer of Solubilized Probes>, Formula: C19H34O2, the main research area is cluster AOT reverse micelle energy transfer; fluorescence probe AOT reverse micelle cluster.

Water-soluble anionic fluorescent mols. tetrasodium 1,3,6,8-pyrenetetrasulfonate (PyTS) and trisodium 8-hydroxy-1,3,6-pyrenetrisulfonate (pyranine) were solubilized in sep. reversed micellar cores in AOT/n-heptane system. The reversed micelle system showed an extent of nonradiative energy transfer from PyTS to pyranine higher than for the aqueous solution system in comparison at a critical probe concentration, [P]C. The values of [P]C, where each micelle is occupied by statistically one probe mol., were determined as a probe concentration where the solubilized disodium 2,6-naphthalenedisulfonate (NpDS) begins to show the intramicellar excimer fluorescence. The results reveal that at surfactant concentrations higher than 0.1 M the AOT reversed micelles are not randomly dispersed in isolated state in n-heptane but form clusters through intermicellar flocculation.

Journal of Physical Chemistry published new progress about Clusters. 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

Lin, Qiaowei; Huang, Ling; Liu, Wenhua; Li, Zejian; Fang, Ruopian; Wang, Da-Wei; Yang, Quan-Hong; Lv, Wei published the artcile< High-performance lithium-sulfur batteries enabled by regulating Li2S deposition>, HPLC of Formula: 112-63-0, the main research area is indium tin oxide lithium sulfur battery.

Lithium-sulfur batteries (LSBs) have received intensive attention in recent years due to their high theor. energy d. derived from the lithiation of sulfur. In the discharge process, sulfur transforms into lithium polysulfides (LiPSs) that dissolve in liquid electrolytes and then into insoluble Li2S precipitated on the electrode surface. The electronically and ionically insulating Li2S leads to two critical issues, including the sluggish reaction kinetics from LiPSs to Li2S and the passivation of the electrode. In this regard, controlling the Li2S deposition is significant for improving the performance of LSBs. In this perspective, we have summarized the recent achievements in regulating the Li2S deposition to enhance the performance of LSBs, including the solution-mediated growth of Li2S, sulfur host enhanced nucleation and catalysis induced kinetic improvement. Moreover, the challenges and possibilities for future research studies are discussed, highlighting the significance of regulating the Li2S deposition to realize the high electrochem. performance and promote the practical uses of LSBs.

Physical Chemistry Chemical Physics published new progress about Battery electrolytes. 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

Piroli, Gerardo G.; Manuel, Allison M.; Patel, Tulsi; Walla, Michael D.; Shi, Liang; Lanci, Scott A.; Wang, Jingtian; Galloway, Ashley; Ortinski, Pavel I.; Smith, Deanna S.; Frizzell, Norma published the artcile< Identification of novel protein targets of dimethyl fumarate modification in neurons and astrocytes reveals actions independent of Nrf2 stabilization>, HPLC of Formula: 112-63-0, the main research area is neuroblastoma cell neuron astrocyte Nrf2 dimethyl fumarate; Chemical biology; Dimethyl fumarate; Drug targets*; Mechanism of action; Post-translational modifications*; Protein adducts; Succination.

The fumarate ester di-Me fumarate (DMF) has been introduced recently as a treatment for relapsing remitting multiple sclerosis (RRMS), a chronic inflammatory condition that results in neuronal demyelination and axonal loss. DMF is known to act by depleting intracellular glutathione and modifying thiols on Keap1 protein, resulting in the stabilization of the transcription factor Nrf2, which in turn induces the expression of antioxidant response element genes. We have previously shown that DMF reacts with a wide range of protein thiols, suggesting that the complete mechanisms of action of DMF are unknown. Here, we investigated other intracellular thiol residues that may also be irreversibly modified by DMF in neurons and astrocytes. Using mass spectrometry, we identified 24 novel proteins that were modified by DMF in neurons and astrocytes, including cofilin-1, tubulin and collapsin response mediator protein 2 (CRMP2). Using an in vitro functional assay, we demonstrated that DMF-modified cofilin-1 loses its activity and generates less monomeric actin, potentially inhibiting its cytoskeletal remodeling activity, which could be beneficial in the modulation of myelination during RRMS. DMF modification of tubulin did not significantly impact axonal lysosomal trafficking. We found that the oxygen consumption rate of N1E-115 neurons and the levels of proteins related to mitochondrial energy production were only slightly affected by the highest doses of DMF, confirming that DMF treatment does not impair cellular respiratory function. In summary, our work provides new insights into the mechanisms supporting the neuroprotective and remyelination benefits associated with DMF treatment in addition to the antioxidant response by Nrf2.

Molecular & Cellular Proteomics published new progress about Actin filament. 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

Ono, Masahiro; Haratake, Mamoru; Nakayama, Morio; Kaneko, Yoshikazu; Kawabata, Koichi; Mori, Hiroshi; Kung, Mei-Ping; Kung, Hank F. published the artcile< Synthesis and biological evaluation of (E)-3-styrylpyridine derivatives as amyloid imaging agents for Alzheimer's disease>, Computed Properties of 112-63-0, the main research area is iodine 125 dimethylaminostyrylpyridine preparation amyloid imaging agent Alzheimer.

A new series of (E)-3-styrylpyridine derivatives as potential diagnostic imaging agents targeting amyloid plaques in Alzheimer’s disease (AD) were synthesized and examined When in vitro binding studies using AD brain homogenates were carried out with a series of styrylpyridine derivatives, (E)-2-Bromo-5-(4-dimethylaminostyryl)pyridine (7) with a dimethylamino group showed the highest binding affinity. Compound 7 intensely stained neuritic and diffused plaques and cerebrovascular amyloids on postmortem AD brain sections. (E)-2-Iodo-5-(4-dimethylaminostyryl)pyridine (9), the iodo derivative of compound 7, also stained senile plaques in human AD sections. The radioiodinated ligand [125I]9 was successfully prepared through an iododestannylation reaction from the corresponding tributyltin derivatives using hydrogen peroxide as the oxidant in high yields and with high radiochem. purity. A biodistribution study in normal mice after an i.v. injection of [125I]9 displayed high brain uptake and fast washout. Taken together, the data suggest that the new radio tracer, [125I]9, may be useful as a radioiodinated imaging agent for mapping Aβ plaques in the brains of patients with AD.

Nuclear Medicine and Biology published new progress about Alzheimer disease. 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

Liu, Yu-Qi; Luo, Min; Shi, Yu; Guo, Ying; Zhang, Hua; Yang, Kai-Di; Li, Tian-Ran; Yang, Liu-Qing; Liu, Ting-Ting; Huang, Bo; Liu, Qing; He, Zhi-Cheng; Zhang, Xiao-Ning; Wang, Wen-Ying; Wang, Shuai; Zeng, Hui; Niu, Qin; Zhang, Xia; Cui, You-Hong; Zhang, Zhi-Ren; Bian, Xiu-Wu; Ping, Yi-Fang published the artcile< Dicer deficiency impairs proliferation but potentiates anti-tumoral effect of macrophages in glioblastoma>, Formula: C19H34O2, the main research area is glioblastoma cell proliferation macrophage phagocytosis dicer anti tumor immunotherapy.

Glioblastoma is a lethal primary brain tumor with abundant immune-suppressive glioblastoma-associated macrophage (GAM) infiltration. Skewing immune suppressive GAMs towards an immune-activating phenotype represents a promising immunotherapeutic strategy against glioblastoma. Herein, we reported that genetic deletion of miRNA-processing enzyme Dicer in macrophages inhibited the growth of GL261 murine glioblastoma xenografts and prolonged survival of tumor-bearing mice. Single cell RNA sequencing (scRNA-seq) of the tumor-infiltrating immune cells revealed that Dicer deletion in macrophages reduced the proportion of cell-cycling GAM cluster and reprogramed the remaining GAMs towards a proinflammatory activation state (enhanced phagocytotic and IFN-producing signature). Dicer-deficient GAMs showed reduced level of cyclin-dependent kinases (CDK1 and CDK2) and increased expression of CDK inhibitor p27 Kip1, thus manifesting impaired proliferation. Dicer knockout enhanced phagocytotic activity of GAMs to eliminate GL261 tumor cells. Increased proinflammatory GAM clusters in macrophage Dicer-deficient mice actively interacted with tumor-infiltrating T cells and NK cells through TNF paracrine signaling to create a pro-inflammatory immune microenvironment for tumor cell elimination. Our work identifies the role of Dicer deletion in macrophages in generating an immune-activating microenvironment, which could be further developed as a potential immunotherapeutic strategy against glioblastoma.

Oncogene published new progress about Animal gene Role: BSU (Biological Study, Unclassified), BIOL (Biological Study) (Ereg). 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

Wan, Feifei; Yang, Bo; Zhu, Jiekun; Jiang, Dabo; Zhang, Huanhuan; Zhang, Qiao; Chen, Shuainan; Zhang, Chao; Liu, Yachun; Fu, Zaihui published the artcile< The transfer hydrogenation of high concentration levulinic acid to γ-valerolactone catalyzed by glucose phosphate carbamide zirconium>, Product Details of C19H34O2, the main research area is glucose phosphate carbamide zirconium levulinic acid transfer hydrogenation catalyst; gamma valerolactone turnover frequency.

Zr-Based catalysts have been extensively applied in Meerwein-Ponndorf-Verley type catalytic transfer hydrogenation (CTH) reactions, but they are easily deactivated in the CTH conversion of high concentrations of levulinic acid (LA) to γ-valerolactone (γ-GVL). This work discloses that by using cheap glucose and ZrCl4 as two main raw materials, glucose phosphate carbamide zirconium (GluPC-Zr) is easily synthesized at large scale and low cost via a simple two-step conversion. The constructed GluPC-Zr has enhanced Lewis acid-base properties and good porosity, thus exhibiting outstanding activity for the CTH reactions of LA or its esters with isopropanol (IPA), providing 95-98% γ-GVL yields. Because of the excellent esterification performance of the introduced acidic phosphate groups, GluPC-Zr also works well at high LA concentrations, achieving a much higher turnover frequency (TOF, 8.2 mmol γ-GVL per g catalyst per h) than previously reported Zr-based catalysts (TOF, 0.2-2.4). And it shows excellent reusability in the reaction of LA with IPA, still providing ca. 95% γ-GVL yield after the seventh cycle run. This work provides a preferential esterification strategy for LA to hamper catalyst deactivation, which is of special significance for the large-scale production of γ-GVL from biomass-derived LA and a low-cost GluPC-Zr catalyst.

Green Chemistry published new progress about Bronsted acidity. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Product Details of C19H34O2.

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

Rauen, H. M.; Nonhof, R. published the artcile< Pattern of anticytogenic activity of pyrimidine derivatives on Neurospora crassa>, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is .

The anticytogenic activity of 71 pyrimidine derivatives on N. crassa was determined in the horizontal proliferation test. Of these, the following 12 were found to meet the criteria of the Cancer Chemotherapy National Service Center; i.e., their inhibitory doses (H.D.50) were under the limit of 10 mg./ml. of culture medium: 2-ethylmercapto-4-chloro-5-carbethoxypyrimidine, 0.025; bis(4-methylpyrimidyl-2-disulfide, 0.044; 4,6-dichloropyrimidine, 0.060; 4-methylpyrimidyl-2-sulfenmorpholide, 0.086; 2-ethylmercapto-4-amino-4-carbethoxypyrimidine, 0.130; 2-ethylmercapto-4-hydroxycarbethoxypyrimidine, 0.85; 4-phenylpyrimidine ,0.200; 2,4,5,6-tetraaminopyrimidine sulfate, 0.350; 2-amino-4-chloro-6-methylpyrimidine, 0.370; 2,4-dimercaptopyrimidine, 0.400; 2-mercapto-4-methylpyrimidine-HCl, 0.500; 2-mercapto-4,6-dimethylpyrimidine, 0.550 mg. Combinations of 2 or more inhibitory materials showed additive, synergistic, or diminished effects. The possible inhibitory mechanism is discussed. Relations are shown between the structures of the compounds and their cytotoxic action.

Arzneimittel-Forschung published new progress about Neurospora crassa. 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