Results 51 to 60 of about 55,634 (166)

Role of a Serotonin Precursor in Development of Gut Microvilli [PDF]

open access: yesThe American Journal of Pathology, 2008
Monoamines exert diverse functions in various cells in peripheral organs as well as in the central nervous system. 5-Hydroxy-l-tryptophan (5-HTP) has been simply regarded as a precursor of serotonin, and it is believed that the biological significance of 5-HTP is essentially ascribable to the production of serotonin.
Hiroyuki Hasegawa   +4 more
openaire   +3 more sources

Forging a New Frontier: Antimicrobial Peptides and Nanotechnology Converging to Conquer Gastrointestinal Pathogens

open access: yesSmall, EarlyView.
This review explores the potential of antimicrobial peptides (AMPs) and nanotechnology for the treatment of gastrointestinal infections. It analyzes bacterial resistance mechanisms, the antimicrobial actions of AMPs, and advances in nanocarriers, such as lipid‐based, polymeric, metallic, and mesoporous silica systems, that enhance peptide protection ...
Christian Shleider Carnero Canales   +10 more
wiley   +1 more source

L-selectin mediated leukocyte tethering in shear flow is controlled by multiple contacts and cytoskeletal anchorage facilitating fast rebinding events

open access: yes, 2004
L-selectin mediated tethers result in leukocyte rolling only above a threshold in shear. Here we present biophysical modeling based on recently published data from flow chamber experiments (Dwir et al., J. Cell Biol.
Alon   +22 more
core   +2 more sources

Natural History Note Differential Response To Circularly Polarized Light By The Jewel Scarab Beetle Chrysina Gloriosa [PDF]

open access: yes, 2010
Circularly polarized light is rare in the terrestrial environment, and cuticular reflections from scarab beetles are one of the few natural sources.
Brady, Parrish, Cummings, Molly
core   +1 more source

Interdisciplinary Approach to Monkeypox Prevention: Integrating Nanobiosensors, Nanovaccines, Artificial Intelligence, Visual Arts, and Social Sciences

open access: yesSmall Structures, EarlyView.
This illustration depicts a comprehensive strategy against monkeypox, showcasing its transmission, symptoms, and prevention. Centralized around nanomaterials and biosensors, it integrates early screening, Internet of Things, vaccination, and community involvement through collaboration among healthcare workers, scientists, researchers, social groups ...
Vishal Chaudhary   +3 more
wiley   +1 more source

Organization of the cross-filaments in intestinal microvilli. [PDF]

open access: yesThe Journal of cell biology, 1982
We studied the arrangement of the cross-filaments in intestinal microvilli to understand how microfilaments interact with the membrane. Observations on thin-sectioned or negatively stained microvilli with the electron microscope demonstrate that the cross-filaments on the core bundle lie opposite to one another and are spaced 32.5 nm apart. In sections
Paul Matsudaira, David R. Burgess
openaire   +3 more sources

Highly conserved type 1 pili promote enterotoxigenic E. coli pathogen-host interactions [PDF]

open access: yes, 2017
Enterotoxigenic Escherichia coli (ETEC), defined by their elaboration of heat-labile (LT) and/or heat-stable (ST) enterotoxins, are a common cause of diarrheal illness in developing countries.
Sheikh, Alaullah   +7 more
core   +2 more sources

Electrostatic Flocking: Reborn to Embrace Multifunctional Applications

open access: yesSmall Structures, EarlyView.
This review provides a systematic summary and categorization of the principles, advantages, and functional applications of electrostatic flocking technology. It also explores the challenges associated with this technology, such as the selection of new materials and the design of innovative structures, while discussing potential applications ...
Meng Shen   +8 more
wiley   +1 more source

Enterohemorrhagic Escherichia coli colonization of human colonic epithelium in vitro and ex vivo [PDF]

open access: yes, 2015
Enterohemorrhagic E. coli (EHEC) are important foodborne pathogens causing gastroenteritis and more severe complications such as hemorrhagic colitis and hemolytic uremic syndrome.
B. A. McCormick   +4 more
core   +1 more source

Activated mTOR Signaling in the RPE Drives EMT, Autophagy, and Metabolic Disruption, Resulting in AMD‐Like Pathology in Mice

open access: yesAging Cell, EarlyView.
Our study reveals that overactivation of both mTOR complexes through mLST8 in RPE cells triggers AMD‐like pathology and cellular dysfunction. This finding highlights the critical role of balanced mTOR signaling in retinal health and suggests that targeting both complexes could be therapeutic for AMD treatment.
Olivia Chowdhury   +27 more
wiley   +1 more source

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