Category: 112-63-0

Miller, Hunter A.; van Berkel, Victor H.; Frieboes, Hermann B. published the artcile< Lung cancer survival prediction and biomarker identification with an ensemble machine learning analysis of tumor core biopsy metabolomic data>, Electric Literature of 112-63-0, the main research area is metabolome biomarker machine learning lung cancer; Artificial intelligence; Lung cancer; Machine learning; Metabolomics; Personalized medicine; Survival prediction.

While prediction of short vs. long term survival from lung cancer is clin. relevant in the context of patient management and therapy selection, it has proven difficult to identify reliable biomarkers of survival. Metabolomic markers from tumor core biopsies have been shown to reflect cancer metabolic dysregulation and hold prognostic value. Implement and validate a novel ensemble machine learning approach to evaluate survival based on metabolomic biomarkers from tumor core biopsies. Data were obtained from tumor core biopsies evaluated with high-resolution 2DLC-MS/MS. Unlike biofluid samples, anal. of tumor tissue is expected to accurately reflect the cancer metabolism and its impact on patient survival. A comprehensive suite of machine learning algorithms were trained as base learners and then combined into a stacked-ensemble meta-learner for predicting “”short”” vs. “”long”” survival on an external validation cohort. An ensemble method of feature selection was employed to find a reliable set of biomarkers with potential clin. utility. Overall survival (OS) is predicted in external validation cohort with AUROCTEST of 0.881 with support vector machine meta learner model, while progression-free survival (PFS) is predicted with AUROCTEST of 0.833 with boosted logistic regression meta learner model, outperforming a nomogram using covariate data (staging, age, sex, treatment vs. non-treatment) as predictors. Increased relative abundance of guanine, choline, and creatine corresponded with shorter OS, while increased leucine and tryptophan corresponded with shorter PFS. In patients that expired, N6,N6,N6-Trimethyl-L-lysine, L-pyrogluatmic acid, and benzoic acid were increased while cystine, methionine sulfoxide and histamine were decreased. In patients with progression, itaconic acid, pyruvate, and malonic acid were increased. This study demonstrates the feasibility of an ensemble machine learning approach to accurately predict patient survival from tumor core biopsy metabolomic data.

Metabolomics published new progress about Adenocarcinoma. 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

Yuan, Mengjie; Wang, Shuai; Li, Guixun; He, Suqin; Liu, Wentao; Liu, Hao; Huang, Miaoming; Zhu, Chengshen published the artcile< UV curable hyperbranched polyester polyurethane acrylate for hydraulic machinery coating>, Related Products of 112-63-0, the main research area is polyester polyurethane acrylate hydraulic machinery coating.

The content of river cement and sand in our country is relatively high, and the surface of hydraulic machinery in hydropower stations is often subject to fatigue damage and erosion. This topic is mainly used to solve the problem of abrasion and corrosion of hydraulic machinery coatings. UV curable polyurethane acrylate (PUA) can be quickly solidified into film and directly coated on the surface of hydraulic machinery with excellent anti-wear, adhesion properties and low cost. In this work, a hyperbranched polyester synthesized by the stepwise reaction of trimethylolpropane (TMP) and dimethylolpropionic acid (DMPA) was as a ‘nucleus’, and the polyurethane prepolymer was obtained by grafting IPDI and PTMG. The UV-curing hyperbranched polyester polyurethane acrylate (PUA-1) was prepared by capping with HEA. Another UV-curing hyperbranched polyester polyurethane acrylate (PUA-2) was prepared as comparison by using TDI and PTMG as the main raw materials. Fourier Transform IR Spectrometer, 1H-NMR spectroscopy, Gel Permeation Chromatog., thermogravimetric anal. and dynamic thermomech. anal. were used to characterize its structure and properties. The wear rate of the two hyperbranched polyesters measured by the underwater steel ball method is below 3%, The swelling rate of PUA-1 is between 250%-300%, and the swelling rate of PUA-2 is around 260%, indicating that PUA-2 has better solvent resistance than PUA-1, and the internal structure of the film is more dense. TG anal. showed that the thermal stability of the two materials was good.

Materials Research Express published new progress about Abrasion. 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

Miller, Max W.; Mylari, Banavara L.; Howes, Harold L. Jr.; Figdor, Sanford K.; Lynch, Martin J.; Lynch, John E.; Gupta, Shyam K.; Chappel, Larry R.; Koch, Richard C. published the artcile< Anticoccidial derivatives of 6-azauracil. 4. A 1000-fold enhancement of potency by phenyl sulfide and phenyl sulfone side chains>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is azauracil analog preparation anticoccidial.

Thirty-nine 6-azauracils I (R and R1 = H, Cl, Me, etc.; X = Me or substituted phenyl; n = 0-2) were synthesized and tested for anticoccidial activity. These compounds prevented a broad spectrum of coccidial infections in chickens at a min. inhibitory concentrations by weight in feed as low as 0.25 ppm, a 4000-fold increase in potency over 6-azauracil, and had shorter plasma half-lives than earlier potent analogs. Sulfides were more potent than sulfones, although they were oxidized rapidly to sulfones in vivo. I (R = R1 = Me; X = C6H4Cl-p; n = 0) [35319-70-1] controlled all the major species of poultry coccidia at low concentrations, but elicited toxicol. symptoms suggesting interference with nucleic acid synthesis.

Journal of Medicinal Chemistry published new progress about Coccidiosis. 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

Wang, Jia; Zheng, Shujing; Li, Yang; Hu, De; Hu, Liming; Wang, Shumin; Leng, Xiangyang published the artcile< Investigate the effect of honey on the absorption of seven active ingredients from wu-tou decoction in rats>, HPLC of Formula: 112-63-0, the main research area is ephedrine glycyrrhizic acid liquiritin absorption bioavailability pharmacokinetic parameter; UPLC-MS/MS; absorption; honey; pharmacokinetic; wu-tou decoction.

Wu-tou decoction has been used as a traditional Chinese medicine prescription for thousands of years. It comprises five herbs, namely Radix Aconiti Preparata, Ephedrae Herba, Astragali Radix, Glycyrrhiza Radix, and Paeoniae Radix Alba. In addition, the original prescription contains honey, but in modern research, the existence of honey is commonly ignored. The aim was to investigate the effect of absorption in rats after oral wu-tou decoction with or without honey. In this research, a rapid and sensitive UPLC-MS/MS method was investigated for the quant. anal. of ephedrine, pseudoephedrine, paeoniflorin, calycosin-7-glucoside, glycyrrhizic acid, liquiritin, and benzoylmesaconine in rat plasma after single and continuous oral decoctions. The results of the pharmacokinetic parameters showed that Cmax, CL/F, AUC0-t, and AUC0-∞ in the honey group were significantly increased than those in the non-honey group except for ephedrine and pseudoephedrine. The same trend was observed regardless of single or continuous oral administrations. Research studies showed that honey could promote the absorption of some effective components in wu-tou decoction in rats, enhance bioavailability, and provide a theor. basis for the scientific and rational compatibility of the original prescription.

Biomedical Chromatography published new progress about Absorption. 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

Bollag, Wendy B.; Helwa, Inas; Choudhary, Vivek; Chen, Xunsheng; Kaddour-Djebbar, Ismail published the artcile< Response to letter to the editor on ""anti-psoriatic drug monomethylfumarate increases nuclear factor erythroid 2-related factor 2 levels and induces aquaporin-3 mRNA and protein expression"">, Application of C19H34O2, the main research area is polemic antipsoriatic drug monomethylfumarate Nrf2 aquaporin 3.

A polemic in response to Lai and colleagues (anti-psoriatic drug monomethylfumarate increases nuclear factor erythroid 2-related factor 2 levels and induces aquaporin-3 mRNA and protein expression). The author agree that mechanism by which monomethylfumarate acts is unclear, which led to investigate its effects on nuclear factor erythroid 2-related factor 2 levels. The author disagree that oxidative stress simply promotes psoriasis lesions to be insufficient data to determine whether oxidative stress is etiol. factor for this disease. Nrf2 play role in keratinocytes and skin is likely complex and dependent on levels of Nrf2 relative to other members of Nrf family and addnl. components of pathway, extent of exposure to oxidative stress, and induces aquaporin-3 mRNA and protein expression in human and mouse keratinocytes. The author concludes that involvement of Nrf2 in keratinocyte proliferation and differentiation is conflicting, with results supporting its participation in both processes.

Journal of Pharmacology and Experimental Therapeutics published new progress about Antipsoriatic agents. 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

Jiatsa Mbouna, Cedric Derick; Tchatat Tali, Brice Mariscal; Tsouh Fokou, Patrick Valere; Madiesse Kemgne, Eugenie Aimee; Keumoe, Rodrigue; Toghueo Kouipou, Rufin Marie; Yamthe Tchokouaha, Lauve Rachel; Tchuente Tchuenmogne, Marthe Aimee; Kenou, Donald Kagho; Sahal, Dinkar; Boyom, Fabrice Fekam published the artcile< Specific sub fractions from Terminalia mantaly (H. Perrier) extracts potently inhibit Plasmodium falciparum rings, merozoite egress and invasion>, Product Details of C19H34O2, the main research area is Terminalia Plasmodium antiplasmodial phytochem profiling; Antiplasmodial; Intraerythrocytic stage–specific inhibition; Phytochemical profiling; Plasmodium falciparum; Terminalia mantaly.

Terminalia mantaly (H. Perrier) and Terminalia superba (Engl. & Diels) are sources of treatment for various diseases, including malaria and/or related symptoms in parts of Southwestern Cameroon. However, there is limited information on the extent of the antiplasmodial potential of their extracts The present study was designed to investigate the antiplasmodial potential of chromatog. sub fractions (SFs) from promising fractions of Terminalia mantaly (Tm) [TmsbwChl, the chloroform fraction from water extract of Tm, IC50 (μg/mL) PfINDO: 0.56, Pf3D7: 1.12; SI > 357 (HEK/PfINDO) & 178 (HEK/Pf3D7)] and Terminalia superba (Ts) [TsrmEA, the Et acetate fraction from methanolic extract of Ts, IC50 (μg/mL) PfINDO: 1.82, Pf3D7: 1.65; SI > 109 (HEK/PfINDO) & 121 (HEK/Pf3D7)] obtained from previous studies. The SFs were tested against Plasmodium falciparum 3D7 (Pf3D7-chloroquine sensitive) and INDO (PfINDO-chloroquine resistant) strains in culture. Also, the phytochem. profile of potent SFs was determined and finally, the inhibition of the asexual blood stages of Plasmodium falciparum by the SFs with the highest promise was assessed. Selected SFs were submitted to a second bio-guided fractionation using silica gel column chromatog. The partial phytochem. composition of potent antiplasmodial SFs was determined using gas chromatog. coupled to mass spectrometry (GC-MS). The SYBR Green I-based fluorescence microtiter plate assay was used to monitor the growth of Plasmodium falciparum parasites in culture in the presence or absence of extracts Microscopy and flow cytometry counting was used to assess the Plasmodium falciparum stage-specific inhibition and post-drug exposure growth suppression by highly potent extracts Twenty-one of the 39 SFs afforded from TmsbwChl showed activity (IC50: 0.29-4.74 μg/mL) against both Pf3D7 and PfINDO strains. Of note, eight SFs namely, Tm25, Tm28-30, Tm34-36 and Tm38, exerted highly potent antiplasmodial activity (IC50 < 1 μg/mL) with IC50PfINDO: 0.41-0.84 μg/mL and IC50Pf3D7: 0.29-0.68 μg/mL. They also displayed very high selectivity (50 < SIPfINDO, SIPf3D7 > 344) on the two Plasmodial strains. On the other hand, 7 SFs (SFs Ts03, Ts04, Ts06, Ts09, Ts10, Ts12 and Ts13) from TsrmEA showed promising inhibitory potential against both parasite strains (IC50: 2.01-5.14 μg/mL). Sub fraction Tm36 (IC50PfINDO: 0.41 μg/mL, SIPfINDO > 243; IC50Pf3D7: 0.29 μg/mL, SIPf3D7 > 344) showed the highest promise. The GC-MS anal. of the 8 selected SFs led to the identification of 99 phytometabolites, with D-limonene (2), benzaldehyde (12), carvone (13), caryophyllene (35), hexadecanoic acid, Me ester (74) and 9-octadecenoic acid, Me ester (82) being the main constituents. Sub fractions Tm28, Tm29, Tm30, Tm36 and Tm38 inhibited all the three intraerythrocytic stages of P. falciparum, with strong potency against ring stage development, merozoite egress and invasion processes. This study has identified highly potent antiplasmodial SFs from Terminalia mantaly with significant activity on the intraerythrocytic development of Plasmodium falciparum. These SFs qualify as promising sources of novel antiplasmodial lead compounds Further purification and characterization studies are expected to unravel mol. targets in rings and merozoites.

Journal of Ethnopharmacology published new progress about Antimalarials. 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

Renaud, Roger N.; Champagne, Philippe J. published the artcile< Electrochemical oxidation of trifluoroacetic acid in an organic substrate. III. In the presence of substituted malonic acid half esters and unsaturated carboxylic acid esters>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is electrochem oxidation trifluoroacetate; fluoroacetate oxidation malonate ester; acetate trifluoro electrochem oxidation; ester unsaturated oxidation trifluoroacetate.

The electrochem. oxidation of substituted malonic acid half esters was studied in the presence of F3CCO2H. Some crossed Kolbe products were obtained together with some unsaturated carboalkoxy compounds, trifluoromethylated adducts to the double bond, and trifluoromethylated dimers. The electrolysis of F3CCO2H in the presence of olefinic carboalkoxy compounds was also studied.

Canadian Journal of Chemistry published new progress about Oxidation. 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

Chatterjee, Abhishek; Bhadane, Manish; Manjali, Jifmi Jose; Dasgupta, Archya; Epari, Sridhar; Sahay, Ayushi; Patil, Vijay; Moiyadi, Aliasgar; Shetty, Prakash; Gupta, Tejpal published the artcile< Optimizing Postoperative Adjuvant Therapy in Elderly Patients with Newly Diagnosed Glioblastoma: Single-Institution Audit of Clinical Outcomes from a Tertiary-Care Comprehensive Cancer Center in India.>, Recommanded Product: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is Elderly; Fractionation; Glioblastoma; Radiotherapy; Survival; Temozolomide.

BACKGROUND: There is lack of consensus regarding optimal adjuvant therapy in elderly glioblastoma (GBM). We have been treating elderly (≥60 years) GBM patients with normofractionated or hypofractionated radiotherapy (RT) plus temozolomide (TMZ) based on Karnofsky performance status (KPS). Herein we report clinical outcomes in this cohort treated at our institute using this approach. METHODS: Medical records of elderly GBM patients (≥60 years) treated between 2013 and 2017 with either normofractionated RT (59.4-60 Gy/30-33 fractions/6-6.5 weeks) or hypofractionated RT (35 Gy/10 fractions/2 weeks) plus TMZ were reviewed retrospectively. Outcomes of interest included progression-free survival (PFS), overall survival (OS), and ≥grade 3 myelotoxicity. Time-to-event outcomes were analyzed with Kaplan-Meier methods, compared using log-rank test, and reported as point estimates with 95% confidence interval (CI). RESULTS: The normofractionated cohort (n = 126) was characterized by a higher proportion of patients younger than age 65 years, KPS ≥70, methylated O6-methylguanine DNA methyltransferase (MGMT), and receiving adjuvant TMZ including extended adjuvant TMZ (>6 cycles) compared with the hypofractionated cohort (n = 20), confirming selection bias. At a median follow-up of 13 months, 1-year Kaplan-Meier estimates of PFS and OS were 43% (95% CI: 36%-52%) and 56% (95% CI: 48%-64%), yielding median PFS and OS of 11.0 months and 13.1 months, respectively. Higher KPS, methylated MGMT, normofractionated RT, and extended adjuvant TMZ emerged as favorable prognostic factors. TMZ was well tolerated with a low risk of ≥grade 3 myelotoxicity. CONCLUSIONS: Our single-institution clinical audit confirms poor survival in elderly GBM with suboptimal performance status but demonstrates acceptably fair outcomes in patients with preserved KPS comparable with the nonelderly cohort.

World neurosurgery 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

Liu, Shuai; Deng, Youmei; Xu, Feng published the artcile< An inorganic-organic hybrid MnIII{MnII6}2 cluster consisting of rare Lindqvist-like Mn6 subunits with high proton conductivity>, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is tris hydroxymethylpropane organic hybrid manganese cluster Lindqvist preparation structure; proton conductivity tris hydroxymethylpropane organic hybrid manganese cluster Lindqvist.

A new inorganic-organic hybrid MnIII{MnII6}2 with rare Lindqvist-like Mn6 subunits was synthesized. Authors studies reveal the distinct advantages of the MnIII{MnII6}2 compound as a potential material of proton exchange membranes, including its facile and cost-effective synthesis, insolubility in water, and most importantly, its maximum proton conductivity of 4.69 x 10-3 S cm-1 at 368 K and 97% RH.

Chemical Communications (Cambridge, United Kingdom) published new progress about Crystal structure. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Name: (9Z,12Z)-Methyl octadeca-9,12-dienoate.

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

Li, Ming-Shuang; Quan, Mao; Yang, Xi-Ran; Jiang, Wei published the artcile< Cucurbit[n]urils (n = 7, 8) can strongly bind neutral hydrophilic molecules in water>, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is cucurbituril crown ether dioxane inclusion reaction kinetics hydrogen bond.

It is challenging to recognize neutral hydrophilic mols. in water. Effective use of hydrogen bonds in water is generally accepted to be the key to success. In contrast, hydrophobic cavity is usually considered to play an insignificant role or only to provide a nonpolar microenvironment for hydrogen bonds. Herein, we report that hydrophobic cavity alone can also strongly bind neutral, highly hydrophilic mols. in water. We found that cucurbit[n]urils (n = 7, 8) bind 1,4-dioxane, crown ethers and monosaccharides in water with remarkable affinities. The best binding constant reaches 107 M-1 for cucurbit[8]uril, which is higher than its binding affinities to common organic cations. D. functional theory (DFT) calculations and control experiments reveal that the hydrophobic effect is the major contributor to the binding through releasing the cavity water and/or properly occupying the weakly hydrated cavity. However, hydrophobic cavity still prefers nonpolar guests over polar guests with similar size and shape.

Science China: Chemistry published new progress about Enthalpy. 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