Results 71 to 80 of about 8,115 (178)

Deep eutectic solvent mediated synthesis of β-carbolines and related natural products via Pictet–Spengler reaction and aerobic oxidation

Tetrahedron Green Chem
An eco-friendly, one-pot synthesis of β-carboline derivatives using deep eutectic solvent is reported. This protocol utilizes commercially available aldehydes and tryptamine, involving Pictet–Spengler cyclization followed by aerobic oxidation.
Bhuvana Narasimman
doaj   +1 more source

MALDI-MS argininyl bufadienolide esters fingerprint from parotoid gland secretions of Rhinella arenarum : age, gender and seasonal variation [PDF]

, 2018
In many amphibians, the granular glands can be grouped in special regions forming macroglands. This is the case of toads, characterized by the presence of a pair of parotoid macroglands, strategically located to give protection by poison release in case ...
Erra Balsells, Rosa, Jungblut, Lucas David, Petroselli, Gabriela, Pozzi, Andrea Gabriela, Raices, Marilina   +4 more
core   +1 more source

Da Yuan Yin Regulates Gut Microbiota and Improves Intestinal Injury in Sepsis

Food Science &Nutrition, Volume 14, Issue 4, April 2026.
Sepsis mouse model was induced by LPS to investigate the effect of Da Yuan Yin (DYY) in vivo. Hematoxylin–eosin staining showed that DYY could reduce intestinal injury caused by sepsis. In addition, DYY can also inhibit inflammation, apoptosis, and promote cell proliferation in sepsis, and promote the expression of tight junction proteins.
Li Wang, Yuan‐Yuan Sha, Guan‐Yu Hu, Yi‐Ming Qian, Jian Guo   +4 more
wiley   +1 more source

Growth inhibition of an Araucaria angustifolia (Coniferopsida) fungal seed pathogen, Neofusicoccum parvum, by soil streptomycetes [PDF]

, 2013
Background: Araucariaceae are important forest trees of the southern hemisphere. Life expectancy of their seedlings can largely be reduced by fungal infections.
Astarita, L, Bauer, R, Dalmas, F, De Filippis, L, Fiedler, H, Hampp, R, Magel, E   +6 more
core   +1 more source

Development of a Novel, Simultaneous Determination Method for Heterocyclic Amines and Mycotoxins in Fried Food by UPLC–MS/MS Combined With QuEChERS

Food Science &Nutrition, Volume 14, Issue 4, April 2026.
• A novel QuEChERS‐UPLC‐MS/MS method was successfully developed for the simultaneous determination of two β‐carboline heterocyclic amines and seven mycotoxins in fried foods. ABSTRACT Dietary exposure to both processing contaminants and natural toxins in fried foods poses a potential health risk, but analytical methods for their simultaneous monitoring
Diaodiao Yang, Jianwen Liu, Yang Song, Yajing Ma, Hongkang Zhu, Qingfeng Zhou, Maomao Zeng   +6 more
wiley   +1 more source

DNA Oxidation Photoinduced by Norharmane Rhenium(I) Polypyridyl Complexes: Effect of the Bidentate N,N′-Ligands on the Damage Profile [PDF]

, 2018
ReI-polypyridyl complexes have interesting and distinctive photochemical and photosensitizing properties. This work describes the capability to induce (or photoinduce) DNA damage of three ReI-complexes with a naturally occurring alkaloid called ...
Ahmad, Balasingham, Balón, Blasius, Boerner, Boiteux, Bonett, Cao, Coggan, Copeland, Crespy, Daley, de Souza, Dhar, Dong, Epe, Epe, Erkkila, Etienne, Feliz, Fernández-Moreira, Friedman, Gasser, Ghesquière, Gonzalez, Gonzalez, Gonzalez, Gonzalez, Gonzalez, Gonzalez, Hayashi, Häring, Kaplanis, Kastl, Kaulage, Knopf, Krokan, Kumar, Kydonaki, Lakowicz, Lee, Leonidova, Lhiaubet-Vallet, Lo, Maisuls, Maisuls, Maisuls, Mari, Marker, Maron, Martí, McKenzie, McKinley, Müller, Ng, Niesel, Paul, Pohl, Pyle, Ragone, Rasse-Suriani, Ruiz, Ruiz, Ruiz, Salditt, Schatzschneider, Schmidt, Schutte, Schäfer, Shahabadi, Smith, Song, Stemp, Stoeffler, Sun, Taira, Thornton, Vignoni, Wilson, Wolfe, Zeglis, Ziessel, Zobi   +82 more
core   +1 more source

Psychedelic Therapies for Comorbid Major Depressive Disorder and Chronic Pain: A Review of Putative Mechanisms of Action

Pharmacology Research &Perspectives, Volume 14, Issue 2, April 2026.
ABSTRACT Major Depressive Disorder (MDD) and chronic pain are independently debilitating conditions that frequently co‐occur. This comorbidity poses a significant clinical challenge, resulting in greater symptom severity, higher disability, and worse prognosis than either condition alone.
Jordana Kazdan, Karim S. Ladha, M. Ishrat Husain   +2 more
wiley   +1 more source

Cytotoxic activity of methanolic extract and two alkaloids extracted from seeds of Peganum harmala L. [PDF]

, 2005
To study the cytotoxic activity of P. harmala. Materials and method: The alkaloids harmine and harmaline have been isolated from a methanolic extract from the seeds of P. harmala L.
Berrougui, Hicham, Ettaib, Abdelkader, Herrera González, María Dolores, López Lázaro, Miguel, Mamouchi, Mohamed, Martín Cordero, Carmen   +5 more
core  

Interkingdom Interactions in the Gut: Ecological Mechanisms, Homeostasis, and Therapeutic Modulation

Gut Medicine, Volume 2, Issue 1, Page 23-39, March 2026.
ABSTRACT The gut microbiota constitutes a highly complex and dynamic ecosystem that profoundly influences host physiology, metabolism, and immunity. This review provides an integrative overview of the mechanisms through which gut microorganisms—particularly bacteria and fungi—interact with host cells and with each other to maintain intestinal ...
Rui‐Qi Wei, Xin‐Wei Sun, Hao‐Jie Huang, Yu‐Zhi Zhao, Shuang‐Jiang Liu, Chang Liu   +5 more
wiley   +1 more source

Chemical Constituents from the Flower of Hosta plantaginea with Cyclooxygenases Inhibition and Antioxidant Activities and Their Chemotaxonomic Significance

Molecules, 2017
Two new phenolic glucosides, hostaflavanone A (1) and anti-1-phenylpropane-1,2-diol-2-O-β-d-glucopyranoside (2), together with six known compounds, anti-1-phenylpropane-1,2-diol (3), phenethyl-O-β-d-glucopyranoside (4), phenethanol-β-d-gentiobioside (5),
Li Yang, Shu-Tai Jiang, Qin-Guang Zhou, Guo-Yue Zhong, Jun-Wei He   +4 more
doaj   +1 more source