唾液蛋白在响应胃内氨酸输液时,拯救会内抑制和有条件避免
V Ascencio Gutierrez1, L E Martin2, A-M Torregrossa3
1Department of Psychology, State University of New York at Buffalo, Buffalo, NY, 14260, USA.
Physiology & behavior
|December 9, 2023
概括
唾液蛋白 (SPs) 可以改变由胃和肠道发出的信号影响的味道行为. 这些蛋白质阻断了条件回避和会话内抑制,通常是由口后苦刺激引起的.
科学领域:
- 神经科学是一个神经科学.
- 生理学 生理学 生理学
- 生物化学 生物化学
背景情况:
- 苦味受体不仅存在于口腔,还存在于胃肠道.
- 口后苦信号影响了诸如有条件回避和会话内抑制等行为.
- 已知唾液蛋白 (SPs) 调节味觉感知和信号传递.
研究的目的:
- 调查唾液蛋白 (SPs) 在调节受口后苦信号影响的行为中的作用.
- 为了确定SPs是否可以阻止由胃内因引起的有条件回避和会话内抑制.
主要方法:
- 动物接受了有条件的回避和会话内抑制范式.
- 输入肠道注射,有或没有SPs,被管理.
- 行为和口味偏好被测量以评估学习的反应.
主要成果:
- 单独使用素成功诱导了有条件的味道回避和会话内抑制.
- 唾液蛋白 (SPs) 的存在阻断了条件回避反应.
- 此外,SP还可以防止通常由胃内因引起的的会话内抑制.
结论:
- 唾液蛋白质在改变对口服后苦刺激的生理反应方面发挥着重要作用.
- SPs可以干扰学习的行为和由胃肠道苦味信号触发的生理抑制.
- 这些发现突出了一个新的机制,即唾液成分影响口腔感知之外的味道相关行为.
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