Results 91 to 100 of about 28,327 (232)

THE ACTION OF TYRAMIN ON THE CIRCULATION OF MAN [PDF]

Archives of Internal Medicine, 1918
Tyramin is a hydrochloric acid salt of parahydroxyphenylethylamin. The latter is the most active blood pressure raising constituent in watery extracts of ergot.1It has been isolated from putrid meat2and from other decomposing organic substances. Here it appears to be formed by the action of bacterial ferments on tyrosin, one of the common amino-acid ...
openaire   +2 more sources

Capillary Electrophoresis With Amperometric Detection for Neurotransmitter Analysis: Principles, Electrode Materials, Methodologies, and Applications

ELECTROPHORESIS, Volume 47, Issue 6, Page 450-478, June 2026.
This review provides a comprehensive summary of monoamine neurotransmitter analysis by capillary electrophoresis with amperometric detection. Fundamental principles of amperometric detection, electrode positioning strategies, and approaches to high‐voltage decoupling are described, followed by a critical comparison of electrode materials, selection of ...
Petr Kubáň, Jiří Volánek, Nguyen Thi Thu Trang, Tran Dai Lam   +3 more
wiley   +1 more source

Tyramine injections reduce locust viability482

, 2000
In the locust nervous system, tyramine is the direct precursor for octopamine synthesis and, as an octopamine analogue, it can activate octopamine receptors.
H. Torfs, W. Van Poyer, E. Swinnen, A. De Loof, J. Poels   +4 more
core  

Determination of tyramine in cheese by LC-UV

, 2003
An isocratic reversed-phase liquid chromatographic assay for tyramine has been developed. The method is based on the reaction of tyramine with 4-chloro-7-nitrobenzofurazan and measurement of the absorbance at 458 nm after chromatographic separation on a ...
Yigit, M, Ersoy, L
core   +1 more source

Beyond “you are what you eat”: Unlocking gut microbiota‐mediated biotransformation of dietary phytochemicals

iMetaOmics, Volume 3, Issue 2, June 2026.
The “efficacy paradox” of phytochemicals, low bioavailability yet significant health benefits, is associated with gut microbiota, which biotransforms dietary precursors into bioactive metabolites, enabling systemic effects. Thus, health outcomes of diet depend not just on intake “the rainbow”, but on gut microbial metabolism, redefining “you are what ...
Peng Yang, Ren‐You Gan
wiley   +1 more source

Main effects of ascorbic acid levels and organic acid type on physicochemical properties, microbial populations, texture, and biogenic amine formation in sucuk

Journal of the Science of Food and Agriculture, Volume 106, Issue 8, Page 4942-4950, June 2026.
Abstract BACKGROUND Sucuk is a traditional Turkish dry fermented sausage, the quality and safety of which depend on physicochemical, microbiological, and biochemical changes during fermentation and ripening. Organic acids, their salts, and antioxidants such as ascorbic acid (AA) are widely used in fermented meat products; however, information about ...
Gülsüme Bıçakcı, Ömer Eren
wiley   +1 more source

TYRAMINE REVEALS FAILING α2-ADRENOCEPTOR CONTROL OF CATECHOLAMINE RELEASE AND TOTAL PERIPEHRAL VASCULAR RESISTANCE IN HYPERTENSIVE RATS

Frontiers in Neurology, 2013
α2-adrenoceptor-activation lowers central sympathetic output, peripheral, vesicular norepinephrine release, epinephrine secretion and modulates vascular tension.
Torill eBerg, Jørgen eJensen
doaj   +1 more source

Single‐Cell and Spatial Transcriptomics Uncover Immune Dynamics and Cellular Heterogeneity in Benign Prostatic Hyperplasia and Prostate Cancer Transition

MedComm, Volume 7, Issue 6, June 2026.
Leveraging integrated single‐cell and spatial transcriptomics, we delineated the sustained immunosuppressive landscape during prostate disease progression. Based on this, we have developed a precise gene‐based diagnostic classifier and a multimodal prognostic model.
Yuanyuan Luo, Haitao Zhong, Tongrui Shang, Bin Hu, Dongbo Yuan, Xueyuan Jia, Ruichong Lin, Zehua Wang, Yinyi Fang, Guohua Zhu, Jukun Song, Zhangcheng Liu, Bo Yan, Fa Sun, Zhenyu Jia, Yunfang Yu, Luhui Mao, Hai Huang, Jianguo Zhu   +18 more
wiley   +1 more source

Unveiling the Power of Deuterium in Drug Discovery: A Comprehensive Overview

MedComm, Volume 7, Issue 6, June 2026.
The role of deuterium replacement in drug discovery, its progress, opportunities, and challenges. ABSTRACT Deuterium, the heavy isotope of hydrogen, has unfolded as a cornerstone in modern drug discovery due to its potential to influence metabolic stability and pharmacokinetic behavior.
Mukta Lele, Ajit Manchare, Swapnali Parit, Amol D. Gholap, Krishna Jadhav, Navnath Hatvate, Keshav Raj Paudel, Satish Rojekar   +7 more
wiley   +1 more source

AmTAR2: Functional characterization of a honeybee tyramine receptor stimulating adenylyl cyclase activity

, 2017
The biogenic monoamines norepinephrine and epinephrine regulate important physiological functions in vertebrates. Insects such as honeybees do not synthesize these neuroactive substances.
Scheiner, Ricarda, Thamm, Markus, Reim, Tina, Balfanz, Sabine, Baumann, A., Blenau, Wolfgang   +5 more
core   +1 more source