Publications by authors named "S H Ashton"

Article Synopsis
  • Researchers used an advanced technique called RNAScope to measure the levels of three dopamine receptors (Drd1, Drd2, Drd3) in specific brain regions related to song control in male and female canaries, who were treated with testosterone to promote singing activity.
  • The study found that all receptor types were present in the various regions, except Drd3 in Area X, but there were very few noticeable differences between male and female canaries regarding dopamine receptor expression, which did not account for the differences in song.
  • The majority of dopamine receptor-expressing cells in the HVC area were linked to excitatory markers, while the PAG had lower receptor density and fewer inhibitory cells, and activation of these cells during
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Introduction: Buprenorphine is a partial mu opioid receptor agonist with high affinity to its receptor, which raises concerns of blocking or displacing full opioid agonists when used during the perioperative period of surgical patients. However, buprenorphine itself has high analgesic potency and discontinuing buprenorphine may lead to suboptimal pain control and risk for opioid use disorder relapse. There is limited data for the continuation of buprenorphine perioperatively.

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Purpose: Participation in Brazilian jiu-jitsu and mixed martial arts has increased over the last three decades. These sports feature submission attacks, including strangles. These strangles, termed "chokes" in this context, primarily limit blood flow to the brain via compression of neck vasculature.

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The nucleus accumbens (NAc) is thought to contribute to motivated behavior by signaling the value of reward-predicting cues and the delivery of anticipated reward. The NAc is subdivided into core and shell, with each region containing different populations of neurons that increase or decrease firing to rewarding events. While there are numerous theories of functions pertaining to these subregions and cell types, most are in the context of reward processing, with fewer considering that the NAc might serve functions related to action selection more generally.

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