Results 41 to 50 of about 87,880 (172)

Protective effects of extracellular vesicle‐like nanoparticles derived from Cannabis sativa adventitious roots against UVB‐induced damage in human keratinocytes

open access: yesInternational Journal of Cosmetic Science, EarlyView.
Cannabis sativa root‐derived extracellular vesicle‐like nanoparticles (CA‐NPs) were isolated from adventitious root cultures and subjected to physicochemical characterization. Upon UVB exposure, keratinocytes exhibited increased ROS generation, apoptosis and MAPK activation, leading to oxidative stress and skin damage.
Dong Ho Bak   +5 more
wiley   +1 more source

Inhibition of tryptophan oxygenase in rat liver by steroid hormones [PDF]

open access: yesBiochemical Journal, 1970
Pregnant women and normal humans treated with estrogens show evidence of increased conversion of L-tryptophan into nicotinic acid ribonucleotide. Increased activity of liver tryptophan oxygenase caused by the action of estrogens or elevated corticosteroid concentration is thought to be the cause. Progesterone caused a decrease in tryptophan oxygenase
I P, Braidman, D P, Rose
openaire   +2 more sources

Multiplexed Nanosensors for Real‐Time Monitoring of VOC‐Mediated Signalling Response in Plants

open access: yesPlant, Cell &Environment, EarlyView.
ABSTRACT To enhance crop performance, intercropping strategies leverage volatile organic compound (VOC)‐driven interactions with companion plants that constitutively emit VOCs. Despite the agricultural importance, the mechanisms and kinetics of VOC‐mediated sensory transduction in receiver plants eavesdropping on neighbouring non‐kin emitters remain ...
Mervin Chun‐Yi Ang   +13 more
wiley   +1 more source

SlTDC modulates photosynthesis of senescent leaves in tomato

open access: yesHorticulture Advances
Melatonin (MT) is a key regulator in plants’ response to leaf senescence induced by aging or various abiotic stresses. Here, we demonstrated that darkness and leaf aging enhance endogenous MT levels by upregulating key genes involved in MT synthesis ...
Yanan Wang   +4 more
doaj   +1 more source

DEGRADATION OF TRYPTOPHAN OXYGENASE IN VIVO AND IN VITRO. [PDF]

open access: yes, 1972
The loss of tryptophan oxygenase from rat livers after induction by hydrocortisone treatment was studied in living rats, isolated perfused livers, liver slices and cell-free preparations of these livers. Measurements of the enzyme by its activity and as an antigen were parallel except for apparently non-specific inactivations in some incubations of ...
Li, J B, Knox, W E
openaire   +2 more sources

Periodontitis and metabolic dysfunction‐associated steatotic liver disease

open access: yesPeriodontology 2000, EarlyView.
Abstract Objective Periodontitis is a chronic inflammatory disease with systemic effects that extend beyond the oral cavity and contribute to systemic immune and metabolic dysregulation. Chronic liver diseases, particularly metabolic dysfunction‐associated steatotic liver disease (MASLD) and its progressive phenotypes, have emerged as major global ...
Rafael Scaf de Molon   +6 more
wiley   +1 more source

Tryptophan-Centric Bioinformatics Identifies New Lasso Peptide Modifications

open access: yes
Lasso peptides are a class of ribosomally synthesized and post-translationally modified peptides (RiPPs) defined by a macrolactam linkage between the N-terminus and the side chain of an internal aspartic acid or glutamic acid residue. Instead of adopting
Douglas A. Mitchell (1314975)   +5 more
core   +5 more sources

NSAID ingestion augments training‐induced muscle hypertrophy and differentially affects muscle mRNA expression, but not strength gains, in trained men

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Schematic outlining the impact of NSAID ingestion on resistance exercise training‐induced changes in muscle morphology, function and gene networks relative to placebo ingestion in trained males. Abstract Non‐steroidal anti‐inflammatory drugs (NSAIDs) are widely overused in sports.
Joanne E. Mallinson   +6 more
wiley   +1 more source

Structural insights into the basis and evolution of interactions in multi-subunit protein assemblies. tryptophan synthase and titin FNIII-repeats [PDF]

open access: yes, 2008
Cellular processes benefit from evolutionary shaping when optimized protein-protein interactions result in enhanced functionality. In fact, most cellular proteins are tightly embedded into biological networks that function following a modularity ...
Bucher, Rainer Michael
core   +1 more source

Natural Compounds Targeting Oncogenic Signaling Networks in Glioblastoma: Molecular Mechanisms, Translational Advances, and Clinical Perspectives

open access: yesBrain and Behavior, Volume 16, Issue 9, September 2026.
Glioblastoma (GBM) is a highly aggressive brain tumor with a poor prognosis, driven by abnormal signaling pathways that promote growth and resistance to treatment. Conventional therapies are inadequate, highlighting the need for novel multitargeted approaches.
Mehrukh Zehravi   +13 more
wiley   +1 more source

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