Results 221 to 230 of about 149,407 (284)

Enteral and intravenous supplementation of arginine and citrulline fail to prevent necrotizing enterocolitis in preterm neonatal pigs

Journal of Parenteral and Enteral Nutrition, Volume 50, Issue 2, Page 252-260, February 2026.
Abstract Background Necrotizing enterocolitis (NEC) is the most common gastrointestinal emergency in preterm infants with a morality rate that approaches 50%. Arginine has been widely studied in the field of clinical nutrition as a supplement for patients experiencing critical illness because it can be metabolized into nitric oxide, an important agent ...
Caitlin Vonderohe, Julia Garcia Mancebo, Valeria Melendez Hebib, Barbara Stoll, Inka Didelija, Sarah Elefson, Mahmoud Mohammad, Brooklynn Earls, Greg Guthrie, Doug Burrin   +9 more
wiley   +1 more source

L. johnsonii alleviates methamphetamine craving via the metabolism of tyrosine. [PDF]

Microbiome
Zhang R, Cheng Z, Liu D, Shao Q, Sheng W, Xu H, Xu P, Wang Y, Aa J, Wang G, Xie Y.   +10 more
europepmc   +1 more source

Structural and dynamic similarities of nanofibrils and microparticles of engineered spider silk proteins probed by solid‐state NMR spectroscopy

Protein Science, Volume 35, Issue 2, February 2026.
Abstract Spider silks are proteinaceous fiber materials inspiring material design in various technical and biomedical fields due to their exceptional toughness, which exceeds that of most natural and artificial fibers. Solid‐state nuclear magnetic resonance (NMR) spectroscopy has been used herein to obtain insights into the structure and dynamics of ...
Nina Wehr, Ettore Bartalucci, Sabrina Smid, Georg Künze, Martin Humenik, Thomas Scheibel, Thomas Wiegand   +6 more
wiley   +1 more source

Revealing site-specific molecular features mediating contacts of heterochromatin protein 1 α (HP1α) and the interactions with chromatin and DNA in LLPS environments. [PDF]

Commun Biol
Zhai Z, Soman A, Kuang J, Guo J, Chen Y, Zhao L, Prasanna C, Putri DA, Glukhov GS, Chng CP, Huang C, Nordenskiöld L, Xue K, Shi X.   +13 more
europepmc   +1 more source

Orbital Variability in Grazing Proportion: New Insights From Sedimentary Amino Acid δ15N Records of the Western Equatorial Pacific

AGU Advances, Volume 7, Issue 1, February 2026.
Abstract The carbon sequestration capacity of the biological carbon pump (BCP) is determined by surface ocean carbon fixation and the transportation of fixed carbon to the ocean interior, which is closely linked to the trophic structure of planktonic ecosystem.
Chen Li, Haowen Dang, Jinlong Du, Hongliang Li, Jingjing Zhang, Zhimin Jian   +5 more
wiley   +1 more source

Abiotic N₂ reduction in submarine hydrothermal systems could quickly fertilize prebiotic oceans. [PDF]

Nat Commun
Sun L, Li K, Sun Z, Zhang Y, Li L.
europepmc   +1 more source

Anomalously Low New Production in the Northeast Atlantic During Spring 2024: A Consequence of Weaker Winter Mixing?

Journal of Geophysical Research: Oceans, Volume 131, Issue 2, February 2026.
Abstract In 2024 an anomalous region of low chlorophyll water covering ∼721,000 km2 or 1.7% of North Atlantic surface area dominated the Northeast Atlantic. This feature formed during spring, remained identifiable as a region of low chlorophyll throughout the summer months in temperate and subpolar waters and, due to low opal ballasting potential of ...
S. C. Painter, E. E. García‐Martín, C. Feltham, R. Muliawan, E. Mawji, K. Peel, S. Kelly, A. Flohr, S. Hartman, A. R. Gates   +9 more
wiley   +1 more source

Visualize Transient Water-Mediated Hydrogen Bonds Facilitating the Formation of Enzymatic Near-Attack Conformers. [PDF]

JACS Au
Xia W, Chen J, Jiang L, Lu M, Liu M, Yang M, Li C, Liu Y.   +7 more
europepmc   +1 more source

Pliocene–Pleistocene Redox Evolution of the Peruvian Margin: A Multi‐Proxy Approach

Paleoceanography and Paleoclimatology, Volume 41, Issue 2, February 2026.
Abstract Due to upwelling of nutrient‐rich waters, the Peruvian Margin is one of the most productive regions of the global ocean, hosting one of the most pronounced and shallowest oxygen minimum zones. This combination of high productivity and low oxygen makes the Peruvian margin a critical site for reconstructing past environmental changes.
P. L. Fraga‐Ferreira, C. Siebert, M. F. Lehmann, M. Frank, F. Scholz   +4 more
wiley   +1 more source

N2 fixation is linked to the ability to encroach in African savanna trees

Functional Ecology, Volume 40, Issue 2, Page 517-533, February 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Encroachment is a globally ubiquitous phenomenon, characterised by increasing indigenous tree densities in savanna and grassland. Encroachment has been attributed to rising atmospheric CO2 concentrations fertilising tree growth and shifting the competitive balance ...
Elizabeth M. Telford, Kimberley Simpson, Lorna Street, Emily Fletcher, Richard Carkeek, Russell B. Dixon, Katie J. Field, Emma Jones, Sarah L. Raubenheimer, Edith Singini, Brad Ripley, Colin P. Osborne, Caroline E. R. Lehmann   +12 more
wiley   +1 more source