Results 81 to 90 of about 10,041 (230)

Carbon turnover in the water-soluble protein of the adult human lens. [PDF]

open access: yes, 2013
PurposeHuman eye lenses contain cells that persist from embryonic development. These unique, highly specialized fiber cells located at the core (nucleus) of the lens undergo pseudo-apoptosis to become devoid of cell nuclei and most organelles. Ostensibly
Buchholz, Bruce A   +7 more
core   +1 more source

High-accuracy peak picking of proteomics data [PDF]

open access: yes, 2006
A new peak picking algorithm for the analysis of mass spectrometric (MS) data is presented. It is independent of the underlying machine or ionization method, and is able to resolve highly convoluted and asymmetric signals. The method uses the multiscale
  +3 more
core   +1 more source

Neurotransmitter Imbalance in Tension-Type Headache: A Systematic Review of Mechanisms and Therapeutic Targets

open access: yesPain and Therapy
Introduction Tension-type headache (TTH) is the most prevalent primary headache disorder worldwide, yet its neurobiological underpinnings remain partially understood.
Lanfranco Pellesi   +6 more
doaj   +1 more source

Untargeted metabolomics approach for unraveling robust biomarkers of nutritional status in fasted gilthead sea bream (Sparus aurata) [PDF]

open access: yes, 2017
A metabolomic study has been performed to identify sensitive and robust biomarkers of malnutrition in farmed fish, using gilthead sea bream (Sparus aurata) as a model.
Calduch-Giner, Josep   +6 more
core   +3 more sources

On-line electrogeneration of copper-peptide complexes in microspray mass spectrometry [PDF]

open access: yes, 2018
The interaction of copper ions with peptides was investigated by electrospray mass spectrometry. Two electrospray micro-emitters were compared, the first one with a platinum electrode using a copper(II) electrolyte solution containing a peptide sample ...
Girault, Hubert, Prudent, Michel
core  

Liquid Chromatography-Electrospray Linear Ion Trap Mass Spectrometry Analysis of Targeted Neuropeptides in Tac1-/- Mouse Spinal Cords Reveal Significant Lower Concentration of Opioid Peptides [PDF]

open access: yes, 2015
Tachykinin and opioid peptides play a central role in pain transmission, modulation and inhibition. The treatment of pain is very important in medicine and many studies using NK1 receptor antagonists failed to show significant analgesic effects in ...
Beaudry, Francis, Saidi, Mouna
core   +1 more source

New analogues of leucine-methionine-enkephalin

open access: yesJournal of Biosciences, 1988
Nine analogues of the opioid pentapeptides leucine-/ methionine-enkephalinamide, involving replacement of amino acid at position 5 or amino acids at positions 2 and 5, have been synthesized by the solid phase method using mainly 9-fluorenylmethyloxycarbonyl amino acid trichlorophenyl esters in the presence of 1-hydroxybenzotriazole, the solid support ...
Sivanandaiah, K.M.   +2 more
openaire   +2 more sources

MDAN-21: A Bivalent Opioid Ligand Containing mu-Agonist and Delta-Antagonist Pharmacophores and Its Effects in Rhesus Monkeys [PDF]

open access: yes, 2012
MDAN-21, , a bivalent opioid ligand containing a mu-opioid receptor agonist (derived from oxymorphone) linked to the delta-opioid receptor antagonist (related to naltrindole) by a spacer of 21 atoms, was reported to have potent analgesic properties in ...
Aceto, Mario D.   +6 more
core   +4 more sources

The effects of pioglitazone, a PPARγ receptor agonist, on the abuse liability of oxycodone among nondependent opioid users [PDF]

open access: yes, 2016
Aims: Activation of PPARγ by pioglitazone (PIO) has shown some efficacy in attenuating addictive-like responses in laboratory animals. The ability of PIO to alter the effects of opioids in humans has not been characterized in a controlled laboratory ...
Alonzo   +74 more
core   +1 more source

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