Results 11 to 20 of about 2,744 (170)

A Runner’s High for New Neurons? Potential Role for Endorphins in Exercise Effects on Adult Neurogenesis

open access: yesBiomolecules, 2021
Physical exercise has wide-ranging benefits to cognitive functioning and mental state, effects very closely resembling enhancements to hippocampal functioning.
Timothy J. Schoenfeld, Chance Swanson
doaj   +1 more source

A Preliminary Study on the Interplay between the Serum Levels of Neurotransmitters and Thyroid Hormones for the Evaluation of the Behavioral Phenotype of Dogs

open access: yesAnimals, 2023
A total of 112 dogs (49 males and 63 females) belonging to different breeds (i.e., Boxer, Cirneco dell’Etna, Fonni’s Dog, Labrador, Crossbreed, German Shepherd, Pit Bull, Shar-Pei, Yorkshire) were analyzed to compare the serum concentration of serotonin,
Raffaella Cocco   +6 more
doaj   +1 more source

Neuroendocrine and psychophysiological investigation of the evolutionary roots of gossip

open access: yesScientific Reports, 2023
This study investigates an evolutionary hypothesis of gossip postulating that in humans it serves a similar function as social grooming in other primates.
Konrad Rudnicki   +5 more
doaj   +1 more source

Mother's hand tool as a skin-to-skin contact simulation instrument decreases pain levels in newborns

open access: yesUniversa Medicina, 2021
BACKGROUND Sensory stimulation activates the gate control mechanism, raises the level of beta endorphins, and the secretion of beta endorphins increases the pain threshold, reducing or eliminating the feeling of pain.
Yesim Ceylantekin   +4 more
doaj   +1 more source

Beta-Endorphin and Male Infertility [PDF]

open access: yesArchives of Andrology, 1986
Beta-endorphin (beta-ED) levels were evaluated in blood and seminal plasma of men with infertility due to varicocele, obstructive and nonobstructive azoospermia, and idiopathic oligoasthenospermia. The relation of this opiate to serum levels of gonadotropins, prolactin, testosterone, androstenedione, and dehydroepiandrosterone sulfate has also been ...
J M, Miralles-García   +3 more
openaire   +2 more sources

beta-endorphin-(1-27) is an antagonist of beta-endorphin analgesia. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1984
beta h-Endorphin-(1-27), a naturally occurring fragment of human beta-endorphin (beta h-endorphin), diminishes the analgesic effect of beta h-endorphin when coinjected intra-cerebroventricularly into mice. A parallel shift in the dose-response curve of beta h-endorphin in the presence of beta h-endorphin-(1-27) suggests competition at the same site ...
R G, Hammonds, P, Nicolas, C H, Li
openaire   +2 more sources

beta-Endorphin-induced analgesia is inhibited by synthetic analogs of beta-endorphin. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1984
Competitive antagonism of human beta-endorphin (beta h-EP)-induced analgesia by synthetic beta h-EP analogs with high in vitro opiate receptor binding to in vivo analgesic potency ratio has been demonstrated. A parallel shift of the dose-response curve for analgesia to the right was observed when either beta h-EP or [ Trp27 ] -beta h-EP was coinjected ...
P, Nicolas, R G, Hammonds, C H, Li
openaire   +2 more sources

Trazodone influence on rat sera beta-endorphins level

open access: yesBiomolecules & Biomedicine, 2004
Some 25 years ago it was found that parts of CNS could produce strong analgesic response on little morphine quantities. Later studies proved the existence for dozen of morphine-like substances, called opioids, which are normally produced in the brain ...
Radivoj Jadrić   +7 more
doaj   +1 more source

“Death drive” scientifically reconsidered: Not a drive but a collection of trauma-induced auto-addictive diseases

open access: yesFrontiers in Psychology, 2022
Over the last 102 years, a lot of discussion was being held about the psychoanalytic conception of the “death drive,” but still with inconclusive results. In this paper, we start with a brief review of Freud’s conception, followed by a comprised overview
Michael Kirsch   +2 more
doaj   +1 more source

Deregulated Brain's Central Clock Management on Sleep-Wake Behavior in Women With Polycystic Ovary Syndrome: Melatonin & Sleep Pattern

open access: yesJournal of Family and Reproductive Health, 2022
The aim of this narrative review is to investigate the reciprocal correlation between melatonin through the brain's central clock management on sleep-wake behavior in women with polycystic ovary syndrome (PCOS).
Farideh Zangeneh
doaj   +1 more source

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