Results 121 to 130 of about 81,019 (308)

A quantitative cytochemical method for ornithine decarboxylase activity.

, 1990
Although decarboxylases, particularly ornithine decarboxylase, are of considerable importance in cell metabolism, it has been impossible to demonstrate their activity histochemically, as this depends on trapping carbon dioxide at neutral pH values.
R A Dodds, G T Frost, A A Pitsillides
core   +1 more source

Early gut microbial and metabolic dysregulation with subclinical cardiac alterations in a nonhuman primate model of Rett syndrome

iMeta, EarlyView.
Longitudinal multi‐omics profiling of a nonhuman primate Rett syndrome (RTT) model reveals early systemic alterations. RTT monkeys exhibited postnatal growth retardation, intestinal structural abnormalities, and low‐grade systemic inflammation. Gut microbiome analysis showed delayed microbial maturation and age‐discordant dysbiosis, including altered ...
Ting Zhang, Xiaopeng Wang, Peng Li, Junyu Zhang, Wenjie Sun, Zhen Zhang, Yan Zhuo, Wenting Guo, Yongchang Chen   +8 more
wiley   +1 more source

Ornithine enhances common bean growth and defense against white mold disease via interfering with SsOAH and diminishing the biosynthesis of oxalic acid in Sclerotinia sclerotiorum

Frontiers in Plant Science
The necrotrophic fungal phytopathogen, Sclerotinia sclerotiorum (Lib.) de Bary, employs a multilayered strategy to infect a wide range of host plants. The current study proposed the diamine L-ornithine, a non-proteinogenic amino acid that promotes the ...
Yasser Nehela, Yasser S. A. Mazrou, Nehad A. EL_Gammal, Osama Atallah, Abdelrazek S. Abdelrhim, Sumit Kumar, Temoor Ahmed, Temoor Ahmed, Qurban Ali, Abeer H. Makhlouf, Warda A. M. Hussain   +10 more
doaj   +1 more source

Multi‐omics biomarkers for intestinal infection and inflammation in inflammatory bowel disease: Current evidence, translational challenges, and diagnostic opportunities

Interdisciplinary Medicine, EarlyView.
Prospective multi‐site cohorts, multi‐omics profiling, and computational analysis may help identify biomarker patterns across clinical settings in IBD and superimposed infections. With further mechanistic and clinical validation, these signals could support the development of practical multi‐analyte tools for more precise diagnosis and management ...
Ziyu Yang, Jiayi Yao, Xinxian Zhao, Yan Xu, Yifan Chen, Tianchi Chen, Ying Jian, Min Li   +7 more
wiley   +1 more source

Histamine and serotonin inhibit induction of ornithine decarboxylase by ornithine in perifused Ehrlich ascites tumour cells

, 1989
Ornithine induced more than 36-fold the ornithine decarboxylase activity in confined Ehrlich ascites tumour cells after 3.5 h of continuous perifusion with 0.5 mM ornithine; arginine and glutamine also induced the activity 3- and 4-fold, respectively ...
M. García-Caballero, F.M. Sánchez-Jiménez, García-Caballero, M., Sánchez-Jiménez, F.M., de Castro, I.Núñez, J.M. Matés, Matés, J.M., I.Núñez de Castro   +7 more
core   +1 more source

Metabolic mimicry of perioral myoclonia with absences: A signature of thalamocortical instability in childhood‐onset ornithine transcarbamylase deficiency

Epileptic Disorders, EarlyView.
José Augusto Bragatti, Letícia Grigoletto   +1 more
wiley   +1 more source

Evaluating the Role of Analogies in Biochemistry Education: Lessons Learned From Pre‐ and Post‐Pandemic Dental Student Perceptions

Journal of Dental Education, EarlyView.
ABSTRACT Biochemistry forms the foundation for understanding biomolecules and molecular processes crucial to dental and oral biology. However, it is often perceived as a challenging subject for dental students with diverse educational backgrounds. Analogies are a pedagogical tool that helps explain new and abstract concepts in biochemistry.
Ulysses Tsz Fung Lam, Yun Chau Long
wiley   +1 more source

Synthesis of 2-(nitromethyl)ornithine from ornithine mediated by cobalt(III)

Rac.-p-(tris(2-aminoethyl)amine-2-(nitromethyl)ornithine)cobalt(III) trichloride (2d) was obtained by a simple three-step procedure from ornithine using cobalt template chemistry.
Petersen TB, Sargeson AM, Golding BT, Hockless DC, Butler PA, Hammershoi A, Ware DC, Crane CG   +7 more
core  

Purification and properties of ornithine racemase from Clostridium sticklandii

, 2000
Ornithine racemase has been purified to homogeneity from Clostridium sticklandii, as shown by sodium dodecyl sulfate-polyacrylamide gel electrophoresis, This is the first racemase known to be highly specific to ornithine. This PLP-dependent enzyme has an
Tsay, S.S., San-San Tsay, Chen, H.P., Lin, C.F., Chin-Fen Lin, Lee, Y.J., Hao-Ping Chen, Ya-Jung Lee, Chen, H. P.(等), Wu, S.H., Shih-Hsiung Wu   +10 more
core   +1 more source

Success of transition to adult care in patients with pediatric‐onset chronic liver disease

Journal of Pediatric Gastroenterology and Nutrition, EarlyView.
Abstract Objectives Previous studies on chronic pediatric‐onset conditions have highlighted the risks of loss to follow‐up, disease progression, or therapeutic nonadherence during transition. However, very few studies have focused on liver diseases.
Sarah Mongbo, Valérie Canva, Sébastien Dharancy, Guillaume Lassailly, Alexandre Louvet, Philippe Mathurin, Nassima Ramdane, Frédéric Gottrand, Madeleine Aumar   +8 more
wiley   +1 more source