Results 71 to 80 of about 21,123,172 (247)

The mechanism of 7,8-diaminopelargonate synthase; the role of S-adenosylmethionine as the amino donor

, 2003
The mechanism of 7,8-diaminopelargonate synthase was studied. The role of S-adenosylmethionine as the amino donor was discussed. It was found that the product of the first transamination step in the reaction catalyzed by diaminopelargonate (DAPA ...
Webster, S, Baxter, RL, Watt, R, Campopiano, DJ, Breen, RS, Brunton, M   +5 more
core   +1 more source

Spatially Resolved Metabolomics of Optimal Cutting Temperature (OCT) Compound‐Embedded Tumors

International Journal of Cancer, EarlyView.
ABSTRACT Mass spectrometry imaging (MSI) is emerging as a powerful tool for uncovering the distribution of metabolites in the tumor microenvironment and studying tumor metabolism in vivo. To date, MSI of biobanked tissues contextualized by patient data has been limited to peptides, proteins, and glycans—with few examples for metabolites.
Joseph Monaghan, Nicholas Woytowich, Tian Zhao, Kiera Nguyen, Emily Mahony, Julian J. Lum, Kyle D. Duncan   +6 more
wiley   +1 more source

Non-alcoholic fatty liver disease and cognitive impairment [PDF]

Терапевтический архив
Aim. To evaluate the efficacy of oral administration of the original ademetionine (Geptral) at a dose of 1500 mg/s in patients with NAFLD at the steatosis stage and cognitive impairment within the framework of a prospective observational open non ...
Elena V. Onuchina, Bairma B. Dambaeva, Anna G. Glazunova, Ayuna Kh. Mikhailova, Elena M. Vorobyova, Elena I. Soshina, Natalya V. Efremenko   +6 more
doaj   +1 more source

Enzymatic Cleavage of S-Adenosylmethionine

Journal of Biological Chemistry, 1959
S-adenosylmethionine, known for some time to be the biological methyl donor in mammalian enzymatic transmethylation reactions (1,2), has more recently been implicated in other transalkylation reactions in bacteria and yeast (3-6). The enzyme system catalyzing the condensation of ATP and methionine to form AMe’ has been found in a variety of tissues and
openaire   +2 more sources

Multi‐omics–driven precision medicine

iMeta, EarlyView.
Multi‐omics‐driven precision medicine (MODPM) provides a multiscale, continuously learnable framework that integrates genomics, epigenomics, transcriptomics, proteomics, metabolomics, microbiome profiles, and clinical data. Powered by artificial intelligence and foundation models, MODPM enables cross‐modal representation learning, contextual modeling ...
Huibo Li, Zhe Zhao, Yifan Zhang, Yao Ma, Gaofei Hu, Min Zeng, Zhanqun Yang, Zixuan Zhao, Xin Zhou, Wei Hu, Yuxuan Sun, Meng Su, Jun Li, Matthew Whiteman, Wei Fu, Chao Zhong, Lemin Zheng, Long Chen, Hairong Lv, Rongsheng Zhao, Yi Zhun Zhu   +20 more
wiley   +1 more source

S-adenosylmethionine inhibits ubiquitin-proteasome system in vitro and on rat vascular smooth muscle cells

, 2008
S-adenosylmethionine is a metabolite regulating many biological processes; S-adenosylmethionine effect on ubiquitin-proteasome system (UPS) has not been studied yet. We investigated S-adenosylmethionine effects on UPS activity both in vitro, by inhibitor
BIZZARRI, Mariano, CAVALLARO, Antonino, Cucina, Alessandra, D'ANSELMI, FABRIZIO, SCARPA, Sigfrido, FUSO, ANDREA, Cavallaro, Rosaria Adele, Cavallaro, Giuseppe   +7 more
core   +1 more source

Noncanonical Nucleotides in the Genome Around the Maternal‐Zygotic Transition

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, EarlyView.
In this paper, Kazzazi et al. provide a comprehensive review of the dynamics of nonconventional nucleotides in the genome during early developmental stages, hypothesizing a potential role for these nucleotides in the activation of the zygotic genome. ABSTRACT From the very moment of fertilization and throughout development, the cells of animal embryos ...
Latifa Kazzazy, Dávid Mező, Kinga K. Nagy, Viktória Perey‐Simon, Judit Tóth, Angéla Békési, Beáta Vértessy, Máté Varga   +7 more
wiley   +1 more source

EFFECT OF S-ADENOSYLMETHIONINE ON HEPATIC AND METABOLIC DISORDERS IN GUINEA PIGS WITH NONALCOHOLIC STEATOHEPATITIS

İstanbul Tıp Fakültesi Dergisi
Objective: S-adenosylmethionine (SAM) has antioxidant and anti-inflammatory actions and hepatoprotective potential. In this study, the therapeutic effectiveness of SAM was investigated in high-fat/cholesterol diet (HFCD)-induced non-alcoholic ...
İlknur Bingül, Canan Küçükgergin, Abdurrahman Fatih Aydın, Aydın Çevik, Merva Soluk Tekkeşin, Necat Vakur Olgaç, Semra Doğru Abbasoğlu, Mehmet Müjdat Uysal   +7 more
doaj   +1 more source

Metabolic engineering of Bacillus amyloliquefaciens for enhanced production of S-adenosylmethionine by coupling of an engineered S-adenosylmethionine pathway and the tricarboxylic acid cycle

Biotechnology for Biofuels, 2019
Background S-Adenosylmethionine (SAM) is a critical cofactor involved in many biochemical reactions. However, the low fermentation titer of SAM in methionine-free medium hampers commercial-scale production.
Liying Ruan, Lu Li, Dian Zou, Cong Jiang, Zhiyou Wen, Shouwen Chen, Yu Deng, Xuetuan Wei   +7 more
doaj   +1 more source

Biological activities and bioactive constituents of Flammulina velutipes: An updated systematic review

Journal of the Science of Food and Agriculture, EarlyView.
Abstract Flammulina velutipes (enokitake) is an edible mushroom recognized for both its nutritional and medicinal properties. It exhibits a broad spectrum of biological activities, including antioxidant, anti‐inflammatory, antitumor, immunomodulatory, and gut microbiota‐regulating effects.
Rıdvan Özgen, Didem Şöhretoğlu, Ayşe Kuruüzüm‐Uz   +2 more
wiley   +1 more source