Results 11 to 20 of about 18,529 (254)

Ginsenoside Re protects methamphetamine-induced dopaminergic neurotoxicity in mice via upregulation of dynorphin-mediated κ-opioid receptor and downregulation of substance P-mediated neurokinin 1 receptor [PDF]

open access: yesJournal of Neuroinflammation, 2018
Background We previously reported that ginsenoside Re (GRe) attenuated against methamphetamine (MA)-induced neurotoxicity via anti-inflammatory and antioxidant potentials.
Duy-Khanh Dang   +12 more
doaj   +4 more sources

Dynorphin activation of kappa opioid receptor promotes microglial polarization toward M2 phenotype via TLR4/NF-κB pathway

open access: yesCell & Bioscience, 2020
Background Microglia-mediated neuroinflammation is associated with epilepsy. Switching microglial polarization from the pro-inflammatory M1 phenotype to the anti-inflammatory M2 phenotype represents a novel therapeutic strategy for mitigating ...
Lin Liu   +5 more
doaj   +1 more source

Kisspeptin, Neurokinin B, and Dynorphin Expression during Pubertal Development in Female Sheep

open access: yesBiology, 2021
The neural mechanisms underlying increases in gonadotropin-releasing hormone (GnRH) and luteinizing hormone (LH) secretion that drive puberty onset are unknown.
Eliana G. Aerts   +6 more
doaj   +1 more source

Opioidergic pathways and kisspeptin in the regulation of female reproduction in mammals

open access: yesFrontiers in Neuroscience, 2022
Endogenous opioid peptides have attracted attention as critical neuropeptides in the central mechanism regulating female reproduction ever since the discovery that arcuate dynorphin neurons that coexpress kisspeptin and neurokinin B (NKB), which are also
Yoshihisa Uenoyama   +4 more
doaj   +1 more source

Substance p immunoreactivity exhibits frequent colocalization with kisspeptin and neurokinin B in the human infundibular region. [PDF]

open access: yes, 2013
Neurons synthesizing neurokinin B (NKB) and kisspeptin (KP) in the hypothalamic arcuate nucleus represent important upstream regulators of pulsatile gonadotropin-releasing hormone (GnRH) neurosecretion.
Bloom, Stephen R.   +8 more
core   +6 more sources

Distribution and regulation of gonadotropin-releasing hormone, kisspeptin, RF-amide related peptide-3, and dynorphin in the bovine hypothalamus [PDF]

open access: yesPeerJ, 2016
Recent work has led to the hypothesis that kisspeptin/neurokinin B/dynorphin (KNDy) neurons in the arcuate nucleus (ARC) play a key role in gonadotropin-releasing hormone (GnRH) pulse generation and gonadal steroid feedback, with kisspeptin driving GnRH ...
Valeria M. Tanco   +5 more
doaj   +2 more sources

Traumatic Stress-Induced Vulnerability to Addiction: Critical Role of the Dynorphin/Kappa Opioid Receptor System

open access: yesFrontiers in Pharmacology, 2022
Substance use disorders (SUD) may emerge from an individual’s attempt to limit negative affective states and symptoms linked to stress. Indeed, SUD is highly comorbid with chronic stress, traumatic stress, or post-traumatic stress disorder (PTSD), and ...
Claire Leconte   +2 more
doaj   +1 more source

Circuit dissection of the role of somatostatin in itch and pain [PDF]

open access: yes, 2018
Stimuli that elicit itch are detected by sensory neurons that innervate the skin. This information is processed by the spinal cord; however, the way in which this occurs is still poorly understood.
AJ Christensen   +79 more
core   +1 more source

Morphological evidence for enhanced kisspeptin and neurokinin B signaling in the infundibular nucleus of the aging man. [PDF]

open access: yes, 2012
Peptidergic neurons synthesizing kisspeptin (KP) and neurokinin B (NKB) in the hypothalamic infundibular nucleus have been implicated in negative sex steroid feedback to GnRH neurons. In laboratory rodents, testosterone decreases KP and NKB expression in
Bloom, Stephen R.   +11 more
core   +1 more source

Identification of dynorphin a from zebrafish: A comparative study with mammalian dynorphin A

open access: yesNeuroscience, 2007
We report the cloning and molecular characterization of the zfPDYN. The complete open reading frame for this propeptide is comprised in two exons that are localized on chromosome 23. zfPDYN cDNA codes for a polypeptide of 252 amino acids that contains the consensus sequences for four opioid peptides: an Ile-enkephalin, the neo-endorphins, dynorphin A ...
E. Marrón Fernández de Velasco   +6 more
openaire   +4 more sources

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