Results 131 to 140 of about 21,347 (246)

THE EFFECT OF VASOPRESSIN IN ACUPUNCTURE ANALGESIUA

open access: yes针刺研究, 1988
Arg-Vasopressin (AVP)has obvious analgesic effect.This effect is not depressed by nalxone (NX),an antagonist of opiate receptor.It was observed that concentration of Leu-enkephalin (LEK) was decreased and catecholamines (CAS) were elevated ...
Liu Qi Han Wei Zhao Jianzhu
doaj  

Multivalent antibody‐based conjugates as new tools for tailored modulation of G protein–coupled receptors

open access: yesBritish Journal of Pharmacology, Volume 183, Issue 16, Page 4512-4531, August 2026.
The G protein–coupled receptor (GPCR) superfamily consists of the most common targets of approved drugs. Targeting GPCRs offers appealing avenues for therapeutic development. Antibodies and their fragments, such as single‐domain antibodies (VHHs or nanobodies), have emerged as useful alternatives to small molecule pharmacophores as building blocks in ...
Shivani Sachdev, Ross W. Cheloha
wiley   +1 more source

Divergent Roles of mGlu2 and mGlu3 Receptors in Amyloid‐β Production and Cognitive Dysfunctions in Alzheimer's Disease

open access: yesAdvanced Science, Volume 13, Issue 37, 3 July 2026.
This study explores the opposing effects of the mGluR2 and mGluR3 receptors on amyloid precursor protein processing. mGluR2 promotes amyloidogenic cleavage, while mGluR3 favors non‐amyloidogenic pathways. Using a brain‐penetrant nanobody as a mGluR2 positive allosteric modulator, the study uncovers how its chronic activation aggravates amyloid‐β burden
Pierre‐André Lafon   +21 more
wiley   +1 more source

Evaluation of Production of Opioid Peptides from Wheat Proteins

open access: yes, 2019
Opioids such as morphine and codeine are the most commonly clinically used drugs for pain management, but have associated side-effects. Food-derived opioid peptides can be suitable alternative due to less side-effect and are relatively inexpensive to ...
Garg, Swati
core  

In Vitro Analyses of Spinach-Derived Opioid Peptides, Rubiscolins: Receptor Selectivity and Intracellular Activities through G Protein- and β-Arrestin-Mediated Pathways. [PDF]

open access: yesMolecules, 2021
Karasawa Y   +12 more
europepmc   +1 more source

Effect of Nutritional Factors on Mental Health Problems in Autism Spectrum Disorder: A Narrative Synthesis of Current Evidence

open access: yesBrain and Behavior, Volume 16, Issue 7, July 2026.
This narrative synthesis of 21 studies evaluates nutritional interventions for psychiatric comorbidities in ASD. Vitamin D3, omega‐3 fatty acids, and probiotics show preliminary benefits for anxiety and irritability, whereas GFCF diet results remain inconclusive.
Nalan Hakime Nogay, Gulin Ozturk Ozkan
wiley   +1 more source

opioid peptides modulate luteinizing hormone secretion during sexual maturation

open access: yes, 1979
Subcutaneous injections of naloxone, an opiate antagonist, lead to an increase in serum luteinizing hormone concentrations in female but not in male rats before they reach puberty.
M. S. Blank, H. G. Friesen, A.E. Panerai
core  

The Relationship Between Course of Illness and β-Endorphin Plasma Levels in Patients with Schizophrenia

open access: yesNeuropsychiatric Disease and Treatment, 2020
Małgorzata Urban-Kowalczyk,1 Magdalena Kotlicka-Antczak,1 Dominik Strzelecki,1 Ewa Rudecka,2,3 Janusz Śmigielski4 1Department of Affective and Psychotic Disorders, Medical University of Łódź, Łódź, Poland; 2Babiński Memorial Hospital in Ł ...
Urban-Kowalczyk M   +4 more
doaj  

Chronic stress differentially alters mRNA expression of opioid peptides and receptors in the dorsal hippocampus of female and male rats. [PDF]

open access: yesJ Comp Neurol, 2021
Johnson MA   +8 more
europepmc   +1 more source

Supraspinal Circuit Mechanisms Underlying Itch Processing

open access: yesCNS Neuroscience &Therapeutics, Volume 32, Issue 7, July 2026.
Peripheral pruriceptive signals ascend from the spinal cord to the brainstem, thalamus, and cortex to encode the sensory features of itch. Parallel projections to limbic and basal ganglia circuits mediate affective and motivational components, including aversion and scratching urge.
Yuncheng Luo   +3 more
wiley   +1 more source

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