Tag: 100-200

Bu, Ting; Zhang, Ming; Lee, Sun-Hee; Cheong, Yu Eun; Park, Yukyung; Kim, Kyoung Heon; Kim, Dongwon; Kim, Sooah published an article in 2022, the title of the article was GC-TOF/MS-Based Metabolomics for Comparison of Volar and Non-Volar Skin Types.Reference of 2,3-Dihydroxypropanoic acid And the article contains the following content:

Skin has heterogenous identities on different body sites despite similar cellular compositions There are two types of skin, volar (palmoplantar) and non-volar (dorsal), which are characterized by epidermal thickness, pigmentation, and presence of hair follicles. However, the mechanisms underlying the development of these different skin types remain unclear. To investigate these, we profiled the cellular metabolites of volar and non-volar skin in mice using gas chromatog.-time-of-flight/mass spectrometry (GC-TOF/MS), and further assessed the metabolic differences between them. In total, 96 metabolites from both volar and non-volar skin of mice were identified using the BinBase database system. Metabolomics anal. revealed important differences associated with amino acid metabolism (phenylalanine, tyrosine, and tryptophan biosynthesis; aspartate and glutamate metabolism), sugar metabolism (pentose phosphate pathway), and nucleotide metabolism (pyrimidine metabolism) in volar skin. Fifty metabolites were identified as potential biomarkers differentiating the physiol. characteristics of these skin types. Of these, nine were highly increased whereas 41 were significantly decreased in volar skin compared with those in non-volar skin. Overall, these results provide valuable information for understanding the metabolic differences between volar and non-volar skin. The experimental process involved the reaction of 2,3-Dihydroxypropanoic acid(cas: 473-81-4).Reference of 2,3-Dihydroxypropanoic acid

The Article related to volar nonvolar skin metabolomics gctof ms, gc-tof/ms, metabolomic analysis, non-volar skin, volar skin, Placeholder for records without volume info and other aspects.Reference of 2,3-Dihydroxypropanoic acid

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Alcohol – Wikipedia,
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Zhang, Zhanjiang; Shen, Guang; Yang, Yihua; Li, Cui; Chen, Xiaoying; Yang, Xiaonan; Guo, Xiaoyun; Miao, Jianhua; Li, Li; Lei, Ming published an article in 2022, the title of the article was Metabolic and Transcriptomic Analyses Reveal the Effects of Ethephon on Taraxacum kok-saghyz Rodin.Category: alcohols-buliding-blocks And the article contains the following content:

The roots of Taraxacum kok-saghyz Rodin (TKS) are well-known and valued for their rubber-producing ability. Therefore, research on the anal. and detection of metabolites from the roots of TKS have been reported in previous studies. However, all of these studies have the shortcoming of focusing on only the rubber of TKS, without profiling the other metabolites in a systematic and comprehensive way. Here, the primary and secondary metabolites from the leaves of TKS were investigated using UPLC-ESI-MS/MS, and a total of 229 metabolites were characterized. Carboxylic acid derivatives, fatty acyls, phenols, and organooxygen compounds were found to be the major metabolites of TKS. The transcriptome data indicated that ribosomal, glycolysis/gluconeogenesis, phenylpropanoid biosynthesis, and linoleic acid metabolism genes were significantly differentially expressed. This study is the first to report the differences in the metabolic and transcriptome profiles of TKS leaves under exogenous ethephon spray, which improves our understanding of the main metabolites and their mol. mechanisms in TKS leaves. The experimental process involved the reaction of 2,3-Dihydroxypropanoic acid(cas: 473-81-4).Category: alcohols-buliding-blocks

The Article related to taraxacum ethephon transcriptomic analyses, taraxacum kok-saghyz rodin, metabolomics, transcriptomics, Placeholder for records without volume info and other aspects.Category: alcohols-buliding-blocks

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Seguido, Miguel Angel; Tarradas, Rosa Maria; Gonzalez-Ramila, Susana; Garcia-Cordero, Joaquin; Sarria, Beatriz; Bravo-Clemente, Laura; Mateos, Raquel published an article in 2022, the title of the article was Influence of 8-week daily consumption of a new product combining green coffee hydroxycinnamates and beta-glucans on polyphenol bioavailability in subjects with overweight and obesity.Recommanded Product: 621-37-4 And the article contains the following content:

Nutraceuticals based on plant extracts rich in polyphenols, as well as dietary fibers, are new means to fight overweight/obesity and associated diseases. However, to understand the potential effects of polyphenols on health it is critical to study their bioavailability and metabolic fate. Consumption of a green coffee phenolic extract (GCPE) in combination with oat beta-glucan (BG) could affect the pharmacokinetic profile of the main polyphenols present in coffee (hydroxycinnamates). Moreover, the regular intake of the combination could also induce changes. Nine overweight men and women consumed a novel nutraceutical product containing 300 mg of green coffee hydroxycinnamic acids and 2.5 g of BG twice a day for 8 wk. A pharmacokinetic study was carried out in blood and urine samples taken before (baseline) and at week 8 after the nutraceutical intervention, collecting samples at different times in a 0-24 h interval. Faecal samples were also obtained at 0 and 24 h after the intake of the nutraceutical at baseline and week 8. Phenolic metabolites were analyzed by LC-MS-QToF. Results showed that polyphenols were differentially absorbed and extensively metabolized throughout the gastrointestinal tract. An apparent reduction in the excretion of small intestinal metabolites was accompanied by a tendency to increase colonic metabolites after sustained intake (p = 0.052). In conclusion, continued consumption of the GCPE/BG nutraceutical appears to enhance the absorption of hydroxycinnamates by increasing the colonic bioavailability of their derived metabolites compared to baseline, although the regular intake of the nutraceutical did not modify the metabolite profile in any of the biol. samples. The experimental process involved the reaction of 3-Hydroxyphenylacetic acid(cas: 621-37-4).Recommanded Product: 621-37-4

The Article related to human green coffee hydroxycinnamate betaglucan polyphenol bioavailability overweight obesity, Placeholder for records without volume info and other aspects.Recommanded Product: 621-37-4

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On April 13, 2021, Pandey, Renu; Collins, Meghan; Lu, Xiyuan; Sweeney, Shannon R.; Chiou, Jennifer; Lodi, Alessia; Tiziani, Stefano published an article.Electric Literature of 32462-30-9 The title of the article was Novel Strategy for Untargeted Chiral Metabolomics using Liquid Chromatography-High Resolution Tandem Mass Spectrometry. And the article contained the following:

Stereospecific recognition of metabolites plays a significant role in the detection of potential disease biomarkers thereby providing new insights in diagnosis and prognosis. D-Hdroxy/amino acids are recognized as potential biomarkers in several metabolic disorders. Despite continuous advances in metabolomics technologies, the simultaneous measurement of different classes of enantiomeric metabolites in a single anal. run remains challenging. Here, we develop a novel strategy for untargeted chiral metabolomics of hydroxy/amine groups (-OH/-NH2) containing metabolites, including all hydroxy acids (HAs) and amino acids (AAs), by chiral derivatization coupled with liquid chromatog.-high resolution tandem mass spectrometry (LC-HR-MS/MS). Diacetyl-tartaric anhydride (DATAN) was used for the simultaneous derivatization of-OH/-NH2 containing metabolites as well as the resulting diastereomers, and all the derivatized metabolites were resolved in a single anal. run. Data independent MS/MS acquisition (DIA) was applied to pos. identify DATAN-labeled metabolites based on reagent specific diagnostic fragment ions. We discriminated chiral from achiral metabolites based on the reversal of elution order of D and L isomers derivatized with the enantiomeric pair (±) of DATAN in an untargeted manner. Using the developed strategy, a library of 301 standards that consisted of 214 chiral and 87 achiral metabolites were separated and detected in a single anal. run. This approach was then applied to investigate the enantioselective metabolic profile of the bone marrow (BM) and peripheral blood (PB) plasma samples from patients with acute myeloid leukemia (AML) at diagnosis and following completion of the induction phase of chemotherapeutic treatment. The sensitivity and selectivity of the developed method enabled the detection of trace levels of the D-enantiomer of HAs and AAs in primary plasma patient samples. Several of these metabolites were significantly altered in response to chemotherapy. The developed LC-HR-MS method entails a valuable step forward in chiral metabolomics. The experimental process involved the reaction of H-Phg(4-OH)-OH(cas: 32462-30-9).Electric Literature of 32462-30-9

The Article related to untargeted chiral metabolomics liquid chromatog high resolution mass spectrometry, tandem, Placeholder for records without volume info and other aspects.Electric Literature of 32462-30-9

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Alcohol – Wikipedia,
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On December 24, 2020, Ang, Chee Wei; Tan, Lendl; Sykes, Melissa L.; AbuGharbiyeh, Neda; Debnath, Anjan; Reid, Janet C.; West, Nicholas P.; Avery, Vicky M.; Cooper, Matthew A.; Blaskovich, Mark A. T. published an article.Formula: C7H6F3NO The title of the article was Antitubercular and Antiparasitic 2-Nitroimidazopyrazinones with Improved Potency and Solubility. And the article contained the following:

Following the approval of delamanid and pretomanid as new drugs to treat drug-resistant tuberculosis, there is now a renewed interest in bicyclic nitroimidazole scaffolds as a source of therapeutics against infectious diseases. We recently described a nitroimidazopyrazinone bicyclic subclass with promising antitubercular and antiparasitic activity, prompting addnl. efforts to generate analogs with improved solubility and enhanced potency. The key pendant aryl substituent was modified by (i) introducing polar functionality to the methylene linker, (ii) replacing the terminal Ph group with less lipophilic heterocycles, or (iii) generating extended biaryl side chains. Improved antitubercular and antitrypanosomal activity was observed with the biaryl side chains, with most analogs achieved 2- to 175-fold higher activity than the monoaryl parent compounds, with encouraging improvements in solubility when pyridyl groups were incorporated. This study has contributed to understanding the existing structure-activity relationship (SAR) of the nitroimidazopyrazinone scaffold against a panel of disease-causing organisms to support future lead optimization. The experimental process involved the reaction of (6-(Trifluoromethyl)pyridin-3-yl)methanol(cas: 386704-04-7).Formula: C7H6F3NO

The Article related to structure antitubercular antiparasitic nitroimidazo pyrazinone derivative preparation, Placeholder for records without volume info and other aspects.Formula: C7H6F3NO

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Alcohol – Wikipedia,
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On March 31, 2022, Pozo-Martinez, Josue; Salgado, Francisco; Liempi, Ana; Kemmerling, Ulrike; Mera-Adasme, Raul; Olea-Azar, Claudio; Moncada-Basualto, Mauricio; Borges, Fernanda; Uriarte, Eugenio; Matos, Maria Joao published an article.SDS of cas: 621-37-4 The title of the article was Synthesis and study of the trypanocidal activity of catechol-containing 3-arylcoumarins, inclusion in β-cyclodextrin complexes and combination with benznidazole. And the article contained the following:

American trypanosomiasis or Chagas disease is caused by the protozoan parasite Trypanosoma cruzi, and is considered a neglected disease, being an important problem for public health. Benznidazole (BZN) is the drug used to treat the disease. However, it has limited efficacy and adverse side effects. Therefore, the development of new therapeutic alternatives is necessary. In this work, the trypanocidal activity and cytotoxicity of a series of catechol-containing 3-arylcoumarins, their combination with BZN, and the inclusion in β-cyclodextrins (β-CDs), were evaluated. The results obtained showed that the entire series has moderate trypanocidal activity on the trypomastigote form of the parasite, being the 3-(4′-bromophenyl)-6,7-dihydroxycoumarin (8) the most active compound (IC50 = 34 μM) and the most cytotoxic in Vero cells (IC50 = 162 μM) as well. By forming the inclusion complex 8-β-CDs, the trypanocidal activity and cytotoxicity decreased. In addition, the formation of inclusion complexes increased the solubility The possible mechanism of action of 8 was evaluated and proved to be through the generation of oxidative stress. The combination with BZN presented a synergistic effect on the trypanocidal activity, reducing the necessary dose of BZN. The presence of a catechol in the studied scaffold seems to modulate the trypanocidal activity, and the combination of drugs proved to be a promising alternative strategy for treating the disease. The experimental process involved the reaction of 3-Hydroxyphenylacetic acid(cas: 621-37-4).SDS of cas: 621-37-4

The Article related to benznidazole trypanocidal activity catechol arylcoumarin beta cyclodextrin complex, Placeholder for records without volume info and other aspects.SDS of cas: 621-37-4

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Liu, Man-yu; Shi, Ya-jing; Wang, Lan-zhi; Song, Hui-hua published an article in 2019, the title of the article was Syntheses, crystal structures and electrochemical properties of two chiral Cu complexes based on D(-)/L(+)-4-hydroxyphenylglycine.Safety of H-Phg(4-OH)-OH And the article contains the following content:

Two chiral coordination compounds based on D(-)/L(+)-4-hydroxyphenylglycine (D/L-Hhpg), {[Cu(D-hpg)(phen)(NO3)]·1.5H2O}n (1) and {[Cu(L-hpg)(phen)(NO3)]·2H2O}n (2) (phen=1,10-phenanthroline) have been synthesized and characterized by elemental anal., IR spectroscopy, powder X-ray diffraction, single-crystal X-ray diffraction, solid-state CD spectra and TG-DSC anal. Compounds 1 and 2 are orthorhombic, P212121 chiral space groups. They are 1D chain structure, which is extended into a 3D supramol. structure by the hydrogen bond. Interestingly, the compounds 1 and 2 exist left-handed or right-handed supramol. helix chains along the b axis direction by the hydrogen bond resp., which is extended by the hydrogen bond between coordinated nitrate anion and lattice water. Furthermore, based on the central metal ions of Cu(Π), further explored the compounds 1 and 2 of electrochem. properties, Anal. of cyclic voltammetry at varying scan rates (0.03 to 0.13 V·s-1) demonstrates a linear relationship between the anode peak current and the scan rate, indicating a surface-controlled electrochem. process. The experimental process involved the reaction of H-Phg(4-OH)-OH(cas: 32462-30-9).Safety of H-Phg(4-OH)-OH

The Article related to crystal structure electrochem chiral copper complex hydroxyphenylglycine synthesis, Placeholder for records without volume info and other aspects.Safety of H-Phg(4-OH)-OH

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Mohamedshah, Zulfiqar; Hayes, Micaela; Chadwick-Corbin, Sydney; Neilson, Andrew P.; Ferruzzi, Mario G. published an article in 2022, the title of the article was Bioaccessibility, gut microbial metabolism and intestinal transport of phenolics from 100% Concord grape juice and whole grapes are similar in a simulated digestion and fecal fermentation model.Recommanded Product: 3-Hydroxyphenylacetic acid And the article contains the following content:

Phenolic rich 100% grape juice has been associated with many health benefits, but its place in dietary guidance is controversial relative to whole fruit. Direct comparisons of phenolic profiles and bioavailability between these food forms are needed. Phenolic bioaccessibility and metabolism from Concord (CG) and Niagara (NG) grapes and corresponding 100% juices were investigated using an in vitro digestion coupled with anaerobic gut fermentation model. Intestinal transport of resulting bioaccessible phenolics and microbial metabolites was estimated using a Caco-2 cell model. Total bioaccessible phenolics from both upper and lower digestion were similar (P > 0.05) between NG (400.9 ± 26.3 μmol per 100 g) and NGJ (349.5 ± 8.3 μmol per 100 g) and significantly different (P < 0.05) between CG (417.2 ± 24.4 μmol per 100 g) and CGJ (294.3 ± 45.4 μmol per 100 g) total cellular transport of phenolics was similar (P > 0.05) between whole grapes (89.4 ± 5.3 μmol per 100 g for CG, and 71.8 ± 2.4 μmol per 100 g for NG) and 100% juices (88.0 ± 5.6 μmol per 100 g for CGJ, and 85.3 ± 9.4 μmol per 100 g for NGJ). Differences were observed between the location of phenolic metabolism, bioaccessibility and subsequent cellular transport of individual phenolics between grapes and juice matrixes. Specifically, greater amounts of phenolics were transported from grape juices than whole grapes from the upper tract. However, cumulative bioaccessibility and transport from upper and lower GI digestion/fermentation together indicates that the absorbable phenolics from 100% grape juice is similar to that of whole grapes, suggesting that phenolic-mediated health benefits from consumption of whole fruit and juice may be similar. The experimental process involved the reaction of 3-Hydroxyphenylacetic acid(cas: 621-37-4).Recommanded Product: 3-Hydroxyphenylacetic acid

The Article related to grape juice phenolics digestion fecal fermentation bioaccessibility gut microbiota, Placeholder for records without volume info and other aspects.Recommanded Product: 3-Hydroxyphenylacetic acid

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Alcohol – Wikipedia,
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Shukla, Ila; Azmi, Lubna; Rao, Ch. V.; Jawaid, Talha; Kamal, Mehnaz; Alkhamees, Osama A.; Alaseem, Ali M.; Alsanad, Saud M. published an article in 2022, the title of the article was Inclusive roles of protocetraric acid, a secondary metabolite from the common green shield lichen Flavoparmelia caperata in alcohol-induced hepatic injury.Safety of 2,3-Dihydroxypropanoic acid And the article contains the following content:

Flavoparmelia caperata belongs to the family Parmeliaceae which is a huge family of lichens and comprises of species that draw much attention about pharmacol. activities. Several medicinally important compounds have been reported in this lichen. Protocetraric acid is among the major metabolites possessed by this lichen. Hence, the present study is designed to look into the more inclusive role of protocetraric acid in case of alc.-induced hepatotoxicity in rats. Thirty rats were randomly divided into six groups: Group 1 served as the control group, Group 2 received ethanol, Group 3 received F. caperata ethanolic extract (FCE) 50 mg/kg, Group 4 received FCE 100 mg/kg, Group 5 received FCE 200 mg/kg and Group 6 received Liv.52 (Standard drug). At the end of the experiment, biochem. parameters, oxidative stress markers, inflammatory mediators, caspase-3 and 8 activities were studied. The liver tissues were further examined histopathol. for localization of areas of severe hepatotoxicity. Cell viability was determined by using the MTT assay in MCF-7 and HepG2 cells. Moreover, FCE increased cell viability. Protocetraric acid, erythritol, and myo-inositol were detected in GC-MS anal. The outcomes of this study reveal that FCE may prove to be supportive in the treatment of alc.-induced hepatotoxicity and oxidative stress. Results of different markers have revealed that among all, FCE (100 mg/kg) has demonstrated the best hepatoprotective activity. It also ameliorated the morphol. changes induced by alc. These observations speak about the significance of the components of the lichen extract The corrective action of FCE in alc.-induced liver damage may be due to its antioxidant, anti-inflammatory, and anti-apoptotic activities. The experimental process involved the reaction of 2,3-Dihydroxypropanoic acid(cas: 473-81-4).Safety of 2,3-Dihydroxypropanoic acid

The Article related to flavoparmelia caperata alc protocetraric acid secondary metabolite hepatic injury, Placeholder for records without volume info and other aspects.Safety of 2,3-Dihydroxypropanoic acid

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On May 13, 2022, Cechanaviciute, Ieva A.; Bobrowski, Tim; Jambrec, Daliborka; Krysiak, Olga A.; Brix, Ann Cathrin; Braun, Michael; Quast, Thomas; Wilde, Patrick; Morales, Dulce M.; Andronescu, Corina; Schuhmann, Wolfgang published an article.Category: alcohols-buliding-blocks The title of the article was Aerosol-Based Synthesis of Multi-metal Electrocatalysts for Oxygen Evolution and Glycerol Oxidation. And the article contained the following:

Discovery of new catalysts is crucial for future growth and development of environmentally friendly energy conversion processes e. g. the production of hydrogen by water electrolysis. We developed an aerosol-based synthesis technique as a comparatively fast and facile method to prepare multi-metal catalysts. 22 different quinary metal compositions were synthesized and investigated with respect to their activity for the oxygen evolution (OER) and the glycerol oxidation (GOR) reactions. The impact of the element composition and the homogeneous distribution of the elements in the particles on catalytic performance were evaluated. The highest activity for OER was found for Co20Cu20Ni20Fe20Zn20. For GOR, Ag-containing catalysts were the most active, however, in most cases Ag was locally enriched and not homogeneously mixed with the other metals in the particles. Ag-based catalysts outperformed similar compositions containing one or more noble metals. The GOR selectivity of selected catalysts during long-term electrolysis was also investigated and it was shown that varying the catalyst composition via aerosol-based synthesis is a potential way to modulate the GOR selectivity. The experimental process involved the reaction of 2,3-Dihydroxypropanoic acid(cas: 473-81-4).Category: alcohols-buliding-blocks

The Article related to aerosol multi metal electrocatalyst oxygen evolution glycerol oxidation reaction, Placeholder for records without volume info and other aspects.Category: alcohols-buliding-blocks

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Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts