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Effects of Moxa Smoke on Monoamine Neurotransmitters in SAMP8 Mice
Huanfang Xu1, Baixiao Zhao, Yingxue Cui
1School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing 100029, China ; Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China.
Abstract:
Objectives. To investigate the anti-aging effects of moxa smoke on SAMP8 mice. Methods. Using 2 × 3 factorial design, exposure length (15 or 30 minutes daily), and concentration (low, 5-15 mg/m(3); middle, 25-35 mg/m(3); high, 85-95 mg/m(3)), 70 SAMP8 mice were randomly assigned, n = 10/group, to a model group or one of six moxa smoke groups: L1, L2, M1, M2, H1, or H2. Ten SAMR1 mice were used as normal control. Mice in moxa smoke groups were exposed to moxa smoke at respective concentrations and exposure lengths; the model and normal control mice were not exposed. Cerebral 5-HT, DA, and NE levels were determined using ELISA. Results. Compared to normal control, the model group showed a significant decrease in 5-HT, DA, and NE. Compared to model group, 5-HT and NE were significantly higher in groups L2, M1, and M2 and DA was significantly so in L2 and M1. 5-HT, DA, and NE levels were the highest in group M1 among moxa smoke groups. A marked exposure length × concentration interaction was observed for 5-HT, DA, and NE. Conclusion. Moxa smoke increases monoamine neurotransmitter levels, which varies according to concentration and exposure length. Our finding suggests that the middle concentration of moxa smoke for 15 minutes seems the most beneficial.
Insights
Moxa smoke, used for its anti-aging potential, significantly increased levels of key brain neurotransmitters like serotonin (5-HT), dopamine (DA), and norepinephrine (NE) in aging mice. A middle concentration for 15 minutes showed the most beneficial effects.
Area of Science:
- Neuroscience
- Aging Research
- Traditional Chinese Medicine
Background:
- Aging is associated with declines in monoamine neurotransmitters, impacting cognitive and physiological functions.
- Moxibustion, a therapy involving burning mugwort (moxa), is traditionally used for various ailments, including those related to aging.
Purpose of the Study:
- To investigate the potential anti-aging effects of moxa smoke exposure on senescence-accelerated prone (SAMP8) mice.
- To determine the impact of different moxa smoke concentrations and exposure durations on cerebral monoamine neurotransmitter levels.
Main Methods:
- A 2x3 factorial design was employed, exposing SAMP8 mice to varying durations (15 or 30 minutes) and concentrations (low, middle, high) of moxa smoke.
- Cerebral levels of serotonin (5-HT), dopamine (DA), and norepinephrine (NE) were quantified using ELISA.
- SAMR1 mice served as a normal control group, while a model group received no moxa smoke exposure.
Main Results:
- The aging mouse model group exhibited significantly lower levels of 5-HT, DA, and NE compared to normal controls.
- Moxa smoke exposure, particularly at middle concentrations and shorter durations, significantly increased 5-HT, DA, and NE levels compared to the model group.
- The middle concentration for 15 minutes (M1 group) yielded the highest levels of all three neurotransmitters among the tested moxa smoke conditions.
Conclusions:
- Moxa smoke effectively increases cerebral monoamine neurotransmitter levels in aging mice.
- The anti-aging effects are dependent on both the concentration and duration of moxa smoke exposure.
- A middle concentration of moxa smoke for 15 minutes daily appears to be the most beneficial for enhancing neurotransmitter levels.
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