Results 131 to 140 of about 48,449 (279)

Transcriptomic, proteomic and biochemical comparison of luminescent and non‐luminescent Keroplatinae larvae (Diptera: Keroplatidae)

open access: yesInsect Molecular Biology, EarlyView.
Transcriptomic and proteomic comparison of luminescent O. fultoni and non‐luminescent Neoditomyia sp show that the substrate binding fraction (SBF) has a similar abundance of hexamerins and the presence of flavin‐dependent reductases. In addition to the high content of keroplatin, SBF also contains considerable amounts of riboflavin and displays ...
Jaqueline R. Silva   +4 more
wiley   +1 more source

Kynurenine pathway and human systems

open access: yesExperimental Gerontology, 2020
The essential amino acid L-tryptophan (Trp) appears to play an important role in aging by acting as a general regulator of protein homeostasis. The major route of Trp degradation, the kynurenine pathway (KP), produces a range of biologically active metabolites that can impact or be impacted by a variety of body systems, including the endocrine ...
openaire   +3 more sources

Weight Loss‐Associated Remodeling of Adipose Tissue Immunometabolism

open access: yesObesity Reviews, EarlyView.
ABSTRACT Obesity is a multifactorial condition characterized by excessive adiposity and systemic chronic low‐grade inflammation. Recent literature reflects a growing appreciation for the complex interplay between metabolism and the immune system in the pathogenesis of obesity‐related health conditions.
Paulo José Basso   +5 more
wiley   +1 more source

Influence of Kynurenine, Neopterin, Noradrenaline and Pyridoxal-5-Phosphate on Cholesterol and Phospholipid Content and Phospholipid Biosynthesis in vitro

open access: yesPteridines, 1993
Incorporation of fatty acids into phospholipids has been investigated using samples of rat liver tissue homogenate, Krebs-Ringer-phosphate buffer (pH = 7.4) containing 0.3% albumin, fatty acid mixture and glyceroL The addition of L-kynurenine (4 nmol/g ...
Rudzite Vera   +5 more
doaj   +1 more source

Exercise‐induced effects on atherogenesis and tryptophan catabolism via the kynurenine pathway in an HIV‐associated atherosclerosis mouse model

open access: yesExperimental Physiology, EarlyView.
Abstract A mouse model of HIV‐associated atherosclerosis (Tg26+/−ApoE−/−) exhibited increased plaque area compared with the ApoE−/− mouse, linked to elevated indoleamine 2,3‐dioxygenase (IDO) activity. IDO catalyses the conversion of tryptophan (TRP) into kynurenine (KYN), measured by the KYN‐to‐TRP ratio.
Marcus V. S. Rangel   +5 more
wiley   +1 more source

Urinary kynurenine,tryptophan, and neopterin concentrations during physiological pregnancy

open access: yesScientific Reports
During pregnancy the alterations of kynurenine and tryptophan metabolism play an important role in local signalling and the prevention of fetal rejection.
Lenka Kujovská Krčmová   +9 more
doaj   +1 more source

Enviromimetics: From exercise mimetics to cognitomimetics in the quest for enhanced brain health and cognition

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend A schematic diagram outlining the concept of enviromimetics, and the subclasses of exercise mimetics, epimimetics and cognitomimetics. The rationale is that environmental stimulation and lifestyle factors, including physical activity and cognitive stimulation, have shown beneficial effects across a range of human conditions ...
Anthony J. Hannan
wiley   +1 more source

Xanthurenic acid and its rôle in the trytophane metabolism of pyroxidine-deficient rats [PDF]

open access: yes, 1943
In a previous publication (1) the isolation of a green pigment from the urine of pyridoxine-deficient rats was described. The green pigment was shown to be the product of a reaction between ferric ammonium sulfate or other ferric salts and a compound ...
Haagen-Smit, A. J.   +2 more
core  

Breast Cancer Brain Metastasis: Bridging Biological Mechanisms to Therapeutic Innovations

open access: yesMedComm – Oncology, Volume 4, Issue 4, December 2025.
Breast cancer brain metastasis (BCBrM) is driven by a multistep metastatic cascade and shaped by dynamic tumor–brain interactions. This review integrates current mechanistic insights, from molecular signaling pathways to immune evasion, and evaluates preclinical models and emerging therapies.
Jing Feng   +3 more
wiley   +1 more source

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