The Changes in Firing Rates of Ventromedial Hypothalamic Neurons and Its Modulations by Electroacupuncture, Arcuate Nucleus and Locus Coeruleus during the Immune Response
The Changes in Firing Rates of Ventromedial Hypothalamic Neurons and Its Modulations by Electroacupuncture, Arcuate Nucleus and Locus Coeruleus during the Immune Response[J]. Acupuncture research, 1996, (3): 32-35.
The Changes in Firing Rates of Ventromedial Hypothalamic Neurons and Its Modulations by Electroacupuncture, Arcuate Nucleus and Locus Coeruleus during the Immune Response[J]. Acupuncture research, 1996, (3): 32-35.DOI:
30 adult SD rats were divided into 3 groups: normal control goup
SRBC immune group (on 5thday after SRBC injection) and MSG(MSG injection at newborn stage) + SRBC group. The changes ofthe spontaneous firing rates of ventromedial hypothalamus (VMH) neurons and evoked responses byelectroacupuncture (EA) and locus coeruleus (LC) stimulation were recorded. The results were as fol-lows:(1)The spontaneous firing rate of VMH neurons was significant increase in the SRBC group. Thefiring rate in the MSG + SRBC group was higher than that in the control group
and lower than that inthe SRBC group. There were statistical differences between them. (2)EA can increase the firing ratesin all groups. The effect of EA was the most significant in the SRBC group
and more significant inthe MSG + SRBC group. (3)The firing type of most VMH neurons showed first excited then inhibitedbiphasic response following stimulation LC in the SRBC and the MSG + SRBC groups. EA showedsome increase in effect of the excited modulation from LC to VMH in the SRBC group. The results. suggest that VMH might be an important neuroendocrinal link in immunoresponse. EA can increasethe immune function of SRBC on VMH. LC and β-endorphine neurons of arcuate nucleus might partic-ipate in the EA-mediated immunoresponse.