Results 111 to 120 of about 17,331 (225)

Cryogen‐Aided Chromatographic Purification of Millimole Quantities of Methane for Spectroscopic Clumped Isotope Analysis

Rapid Communications in Mass Spectrometry, Volume 40, Issue 18, 30 September 2026.
ABSTRACT Rationale Quantum cascade laser absorption spectroscopy (QCLAS) is a fast and reliable method for analyzing the bulk (𝛿13C‐CH4, 𝛿D‐CH4) and clumped isotopic (∆13CH3D and ∆12CH2D2) composition of methane. However, precise measurements of ∆12CH2D2 require 0.5 to 1.8 mmol of purified methane (equivalent to 15 to 40 mL at STP).
Nico Kueter, Jan G. C. Meissner, Naizhong Zhang, Léna Msonnereau, Lukas Emmenegger, Joachim Mohn, Stefano M. Bernasconi   +6 more
wiley   +1 more source

The role of biogenic aminesin depression and the therapeutic effect of the biogenic amine precursors [PDF]

, 1980
Bu yazıda, depresyon patogenezinde biyojen amin varsayımlar ve biyojen amin prekürsörlerinin depresyon tedavisindeki yeri ile ilgili son görüşler gözden geçirilmiştir.In this paper, biogenic amine theories in the pathogenesis of depressions and the ...

core  

The two-way ANOVA results for brain biogenic amine levels for the ocellar injection experiment. [PDF]

, 2018
The two-way ANOVA results for brain biogenic amine levels for the ocellar injection experiment.
Andrew B. Barron (352992), Deborah M. Wareham (5032517), Jacqueline D. Delahunt Smoleniec (5896724), Susie E. Hewlett (5032520), Thomas M. Pyne (5896727)   +4 more
core   +1 more source

Exploring Disulfide Bridge as a Tool to Improve Pioglitazone’s Neuroprotective Potential: Toward the Development of Prolonged‐Acting MAO‐B/PPARγ Modulators

ChemMedChem, Volume 21, Issue 15, 14 August 2026.
Pioglitazone is an antidiabetic drug acting as a peroxisome proliferator‐activated receptor γ (PPARγ) agonist and later repositioned as a monoamine oxidase B (MAO‐B) inhibitor. Despite promising preclinical premises, it showed a lack of efficacy in clinical trials as a treatment for neurodegenerative diseases.
Filippo Basagni, Maria Luisa Di Paolo, Antonio Laghezza, Giorgio Cozza, Francesco Piazzola, Laura Facci, Emma Marcolin, Elena Roggiolani, Luca Piemontese, Anna Minarini, Morena Zusso, Lisa Dalla Via, Michela Rosini   +12 more
wiley   +1 more source

Biogenic Amine Content and Shelf-Life of Salmon Fillets Packaged in Modified Atmospheres of Low-Level Carbon Monoxide and Different Carbon Dioxide Concentrations [PDF]

The objective of this study was to determine the biogenic amine levels and quality parameters of Atlantic salmon fillets packaged with a low level of carbon monoxide and varied concentrations of carbon dioxide and stored at 1°C. For this purpose, ambient
Hilal Colak, Enver B. Bingol, Bingol, Enver B., Hamparsun Hampikyan, Hampikyan, Hamparsun, Akkaya, Esra, Colak, Hilal, Esra Akkaya, Ayse S. Engin, Engin, Ayse S.   +9 more
core   +1 more source

Extending Cofactor‐Tethered Nanomachines to Complex Multienzyme Redox Cascades in Continuous Flow

ChemSusChem, Volume 19, Issue 15, 14 August 2026.
Engineered enzyme fusions bearing covalently tethered PEG–nicotinamide cofactors enable intramolecular cofactor retention and recycling within self‐sufficient biocatalytic nanomachines. These nanomachines support cofactor‐autonomous operation of complex redox multienzyme cascades under continuous‐flow conditions, as demonstrated in a 10‐step glucose‐to‐
Zinnia Dsouza, Jan‐Simon Jeshua Friedrichs, Okke Melse, Gerhard Schenk, Volker Sieber   +4 more
wiley   +1 more source

Optimized SPE‐HPLC‐FLD Method for the Simultaneous Determination of Olaparib, Propranolol, and Furosemide in Human Urine

Biomedical Chromatography, Volume 40, Issue 8, August 2026.
ABSTRACT Olaparib belongs to the PARP inhibitors and is widely used as an anticancer drug. Due to frequent side effects, it is usually co‐administered with an antihypertensive, such as propranolol and/or an antidiuretic, such as furosemide. In this study, a highly sensitive HPLC‐FLD method was developed for the simultaneous determination of the three ...
Georgios Kamaris, Antonia Kalagia, Catherine K. Markopoulou   +2 more
wiley   +1 more source

Discovery of a Potent and Selective MAO‐B Inhibitor From a Donepezil‐Linked Chalcone Library With Promising Antiparkinsonian Activity

Drug Development Research, Volume 87, Issue 5, August 2026.
ABSTRACT A focused library of 19 donepezil‐linked chalcones (DLCs) was efficiently synthesised through microwave‐assisted Claisen‐Schmidt condensation and subsequently profiled for their inhibitory activities against cholinesterases (AChE and BuChE) as well as monoamine oxidases (MAO‐A and MAO‐B).
Azize Kirac‐Aydin, Bishnu Prasad Pandey, Satyajit Mohanty, Rupsa Mondal, Abanish Biswas, Ashok Kumar Pattnaik, Subodh Mondal, Vinay N. Basavanakatti, Nilüfer Bayrak, Venkatesan Jayaprakash, Hoon Kim, Amaç Fatih TuYuN   +11 more
wiley   +1 more source

Identification of Volatile Odor Compounds in Extracts of Four Types of Herbaceous Plant Spices via GC × GC–O‐TOF MS

eFood, Volume 7, Issue 4, August 2026.
In this study, sensory evaluation, electronic nose, solid‐phase microextraction, and comprehensive two‐dimensional gas chromatography‐olfactometry‐time‐of‐flight mass spectrometry were used to analyze the volatile compounds and key odor‐active components in the extracts of sour horn, alfalfa, chicory, and fenugreek, and a total of 59 odor‐active ...
Suxing Tuo, Qinghui Jia, Shuang Bi, Yixin Dai, Ting Deng, Hongbing Lu, Jiaxiao Cai, Zifeng Li, Cheng Yang, Kejun Zhong, Bo Kong, Ye Liu   +11 more
wiley   +1 more source

Impact of Lactic Acid and Fermented Dairy‐Based Marinades on Quality Attributes and Biogenic Amine Formation in Turkey Breast Meat

Food Science &Nutrition, Volume 14, Issue 8, August 2026.
Turkey breast meat was marinated with lactic acid (pH 4.0), yogurt whey, kefir, or yogurt (1:1, w/w) for 24 h at 4°C and then cooked at 185°C for 15 min. Fermented dairy‐based marinades improved meat quality without promoting excessive biogenic amine formation.
Gülsüme Biçakci, Ercan Sarica
wiley   +1 more source