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Comprehensive study on food intake

食物摄入量综合研究

基本信息

批准号：
03304042
负责人：
SATO Toshihide
金额：
$ 12.86万
依托单位：
Nagasaki University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Co-operative Research (A)
财政年份：
1991
资助国家：
日本
起止时间：
1991 至 1993
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03304042/
关键词：
food intake taste recognition chewing rhythm secretion of salva aoral somatic sensation gustatory transduction reflex control of chewing rhythm jaw movement 大錘体神経の味覚応答歯根膜咬筋反射味蕾味覚情報の学習顎運動大脳味覚野唾液核

项目摘要

1. A variety of ion channels existing in the receptive and basolateral membrances of taste cells play an important role in gustatory transductionl Amygdala and cortical taste area are concerned with identification, recognitiona and memory of teste stimuli. The ability of induction of Merkel cells makes the development of teste buds in the tongue.2. It was clarified that oral somatosensory information projects to the intermediate level of the parabrachial nucleus and that a part of pulpal nerve signals projects to the mesencephalic nucleus of the trigeminal nerve.3. Actual food intake behavior in rat after recognition of the taste quality is concerned with the hypothalamus neurons projected from the pontine teste area and the amygdala neurons projected from the taste areas of the pons, thalamus and cortex.4. The aspects of a secretion of salva change with a kind of foods, and this corresponds to impulse pattern of neurons in the salivary unclei of the medulla oblongate. Some neurons in … More the cranial salvary nucleus in cat are projected from the caudal and rostal unclei within the subnucleus interpolaris of the spinal tract nuclei of the trigeminal nerve.5. It was clarified that these exist parasympathetic vasodilatation reflexes in the lip, palate and face which are involved in the intake of foods into the month and the chewing movement.6. Chewing rhythm which is formed in the brain stem and cortex is finaly controlled by integrating, in the somatosensory area of the corgtex, sensory afferent signals from oral mucosa of the tongue, periodontal ligament, gingiva, lip and cheek, etc. did not appear in case of food intake and chewing movement.7. What an unanesthetized rabbit crushed a hard food between upper and lower denitions, the velocity of jaw movement at the late closing phase was temporarily lowered. As the corresponding pheonomenon, a transient inhibitionof masseter muscle EMG and a trasient activity of digastric muscle EMG appeared. This is due to the reflex control of mastication by the periodontal ligament Control of masticatory movement by the periodontal-massetric reflex is more effectively done gy a large size of the motor units. Less

1.存在于味觉细胞感受膜和基底外侧膜上的多种离子通道在味觉传导中起着重要作用。杏仁核和皮层味觉区与味觉刺激的识别、加工和记忆有关。默克尔细胞的诱导能力使舌内睾丸芽发育.阐明了口腔体感信息投射到臂旁核的中间水平，部分牙髓神经信号投射到三叉神经中脑核.大鼠味觉质量识别后的实际摄食行为与脑桥睾丸区投射的下丘脑神经元和脑桥、丘脑和皮层味觉区投射的杏仁核神经元有关.唾液分泌的方面随食物种类而变化，这与延髓唾液核神经元的冲动模式相对应。一些神经元在 ...更多信息猫颅侧丘脑核在三叉神经脊束核的极间亚核内从尾侧核和喙侧核投射.据澄清，这些存在的副交感神经血管舒张反射在唇，腭和脸，这是参与摄入的食物到一个月和咀嚼运动。6.咀嚼节律形成于脑干和皮层，最终由皮层的躯体感觉区整合控制，在进食和咀嚼运动的情况下，舌的口腔粘膜、牙周膜、牙龈、唇和颊等的感觉传入信号不出现.当未麻醉的家兔在上下颌间咀嚼坚硬食物时，下颌运动的速度在闭合晚期暂时降低。与此相应，咬肌肌电出现短暂的抑制，二腹肌肌电出现短暂的活动。这是由于反射控制的咀嚼牙周膜控制咀嚼运动的牙周咀嚼反射更有效地完成戈伊一个大尺寸的运动单位。少