Results 51 to 60 of about 2,587,321 (283)

Age-related increase of kynurenic acid in human cerebrospinal fluid-IgG and beta(2)-microglobulin changes [PDF]

open access: yes, 2005
Kynurenic acid (KYNA) is an endogenous metabolite in the kynurenine pathway of tryptophan degradation and is an antagonist at the glycine site of the N-methyl-D-aspartate as well as at the alpha 7 nicotinic cholinergic receptors. In the brain tissue KYNA
Newcombe, J   +5 more
core  

An Engineered Biomimetic Nanoreactor With Cascade Functions for Targeted and Combinatorial Therapy of Ischemic Stroke

open access: yesAdvanced Healthcare Materials, EarlyView.
Preparation of RVG‐modified erythrocyte membrane‐coated HMPB nanocarriers loaded with L‐arginine and NBP (RM@HPAN) and its neuroprotective mechanism. After intravenous injection, RM@HPAN achieves prolonged circulation, RVG‐29‐mediated BBB penetration, and ischemic accumulation.
Shaofa Li   +9 more
wiley   +1 more source

Loop B is a major structural component of the 5-HT3 receptor [PDF]

open access: yes, 2008
The 5-HT3 receptor belongs to a family of therapeutically important neurotransmitter-gated receptors whose ligand binding sites are formed by the convergence of six peptide loops (A-F).
Thompson, Andrew J.   +9 more
core   +2 more sources

Bottom‐Up Engineering of a Human Neuromuscular System for Modeling Activity‐Induced Remodeling, Metabolic Stress, and Endothelial‐Modulated Excitability

open access: yesAdvanced Materials, EarlyView.
Using a bottom‐up approach, we engineered a human neuromuscular microchip to investigate distinct adaptive responses to neural stimulation and metabolic stress. Further integration of endothelial cells revealed their critical role in modulating neuromuscular excitability, establishing a comprehensive neurovascular‐muscular model.
Jinchul Ahn   +17 more
wiley   +1 more source

VALUE OF NICOTINIC ACID IN THE CURRENT CARDIOLOGY

open access: yesРациональная фармакотерапия в кардиологии, 2016
Statin intake is a standard in the treatment of patients with atherosclerosis nowadays. These drugs therapy associates with 30% risk reduction in mortality and coronary events.
E. P. Trukhacheva, M. V. Ezhov
doaj   +1 more source

SUPPRESSIVE EFFECTS of CERTAIN VITAMINS and ORGANIC ACIDS AGAINST Meloidogyne incognita on OKRA PLANT AND THEIR ROLE in IMPROVING HOST GROWTH UNDER GREENHOUSE CONDITIONS. [PDF]

open access: yesJournal of Plant Protection and Pathology, 2009
A pot experiment was conducted to determine the effects of six vitamins i.e. ascorbic acid, citric acid, folic acid, nicotinic acid, pyridoxine and thiamine in comparison with oxamyl against  Meloidogyne incognita infecting okra plant under greenhouse ...
A. Refaei
doaj   +1 more source

Exogenously applied nicotinic acid alleviates drought stress by enhancing morpho-physiological traits and antioxidant defense mechanisms in wheat

open access: yesEcotoxicology and Environmental Safety, 2023
Across the globe, the frequent occurrence of drought spells has significantly undermined the sustainability of modern high-input farming systems, particularly those focused on staple crops like wheat.
Nouman Khurshid   +11 more
doaj   +1 more source

Renal transport and metabolism of nicotinic acid

open access: yes, 1986
Renal metabolism and brush-border transport of nicotinic acid were studied in renal cortical slices and brush-border membrane vesicles exposed to a physiological concentration of vitamin (2.2-3.5 microM). Vesicle transport of [3H]nicotinic acid was found
R. C. Rose, S. Schuette
core   +1 more source

CD177 Deficiency Defines a Stable Subtype of Human Neutrophil Granulocytes with Tumor Promoting Activity

open access: yesAdvanced Science, EarlyView.
Human neutrophils exist as two epigenetically imprinted subtypes defined by stable CD177 expression or absence — a ratio that persists across time, circadian rhythms, and inflammation. CD177− neutrophils display a distinct molecular landscape enriched in arginase 1 and lipid metabolism markers, accumulate in head‐and‐neck tumors, and associate with ...
Marcel Jung   +39 more
wiley   +1 more source

A intrigante bioquímica da niacina: uma revisão crítica

open access: yesQuímica Nova, 2011
Niacin (nicotinamide, nicotinic acid) interferes on homeostasis, DNA regulation, signaling and longevity. Nicotinic acid reduces synthesis of lipoproteins-apo-B and increases HDL.
Carlos Alberto Bastos de Maria   +1 more
doaj   +1 more source

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