OBJECTIVES: This study aims to examine amplitude changes of low-frequency oscillations (fALFF) in the blood-oxygen level-dependent (BOLD) signal associated with acupuncture on NeiGuan (PC6). EXPERIMENTAL DESIGN: Ten (10) healthy adults participated in a functional magnetic resonance imaging (i.e., nuclear medicine; fMRI) study. During the brain-imaging procedure, the participants were instructed to lie quietly; they did not perform any cognitive task. MAIN OUTCOME MEASURES: Three (3) fMRI scans were conducted for each participant: a first resting-state scan (R1), a stimulating-acupoint scan (AP), and a second resting-state scan (R2) after AP. Individual fALFF maps were calculated for each scan. RESULTS: During R1, consistent with previous studies, the default network regions showed significantly detectable fALFF amplitudes. Acupuncture on PC6 increased fALFF amplitudes within the anterior cingulate cortex (ACC), occipital fusiform gyrus, posterior cingulate cortex, and precuneus (PCC/PCU). In contrast, during R2, fALFF within PCC is still significantly higher than R1 while ACC and cerebellum showed decreased fALFF. CONCLUSIONS: These findings imply that stimulating PC6 can change the amplitude of the intrinsic cortical activity of the brain. In particular, a continuous and temporally consistent effect of acupuncture within PCC not the common brain circuit of pain including ACC and cerebellum was observed. Considering the cognitive functions and deficits of the relevant areas in mild cognitive impairment and Alzheimer disease, acupuncture on PC6 could potentially affect both psychiatric and neurological disorders. Thus, stimulating PC6 may be a candidate method for improving cognitive impairment.
OBJECTIVES: This study aims to examine amplitude changes of low-frequency oscillations (fALFF) in the blood-oxygen level-dependent (BOLD) signal associated with acupuncture on NeiGuan (PC6). EXPERIMENTAL DESIGN: Ten (10) healthy adults participated in a functional magnetic resonance imaging (i.e., nuclear medicine; fMRI) study. During the brain-imaging procedure, the participants were instructed to lie quietly; they did not perform any cognitive task. MAIN OUTCOME MEASURES: Three (3) fMRI scans were conducted for each participant: a first resting-state scan (R1), a stimulating-acupoint scan (AP), and a second resting-state scan (R2) after AP. Individual fALFF maps were calculated for each scan. RESULTS: During R1, consistent with previous studies, the default network regions showed significantly detectable fALFF amplitudes. Acupuncture on PC6 increased fALFF amplitudes within the anterior cingulate cortex (ACC), occipital fusiform gyrus, posterior cingulate cortex, and precuneus (PCC/PCU). In contrast, during R2, fALFF within PCC is still significantly higher than R1 while ACC and cerebellum showed decreased fALFF. CONCLUSIONS: These findings imply that stimulating PC6 can change the amplitude of the intrinsic cortical activity of the brain. In particular, a continuous and temporally consistent effect of acupuncture within PCC not the common brain circuit of pain including ACC and cerebellum was observed. Considering the cognitive functions and deficits of the relevant areas in mild cognitive impairment and Alzheimer disease, acupuncture on PC6 could potentially affect both psychiatric and neurological disorders. Thus, stimulating PC6 may be a candidate method for improving cognitive impairment.
Authors: Biyu J He; Abraham Z Snyder; John M Zempel; Matthew D Smyth; Marcus E Raichle Journal: Proc Natl Acad Sci U S A Date: 2008-10-08 Impact factor: 11.205
Authors: Bharat B Biswal; Maarten Mennes; Xi-Nian Zuo; Suril Gohel; Clare Kelly; Steve M Smith; Christian F Beckmann; Jonathan S Adelstein; Randy L Buckner; Stan Colcombe; Anne-Marie Dogonowski; Monique Ernst; Damien Fair; Michelle Hampson; Matthew J Hoptman; James S Hyde; Vesa J Kiviniemi; Rolf Kötter; Shi-Jiang Li; Ching-Po Lin; Mark J Lowe; Clare Mackay; David J Madden; Kristoffer H Madsen; Daniel S Margulies; Helen S Mayberg; Katie McMahon; Christopher S Monk; Stewart H Mostofsky; Bonnie J Nagel; James J Pekar; Scott J Peltier; Steven E Petersen; Valentin Riedl; Serge A R B Rombouts; Bart Rypma; Bradley L Schlaggar; Sein Schmidt; Rachael D Seidler; Greg J Siegle; Christian Sorg; Gao-Jun Teng; Juha Veijola; Arno Villringer; Martin Walter; Lihong Wang; Xu-Chu Weng; Susan Whitfield-Gabrieli; Peter Williamson; Christian Windischberger; Yu-Feng Zang; Hong-Ying Zhang; F Xavier Castellanos; Michael P Milham Journal: Proc Natl Acad Sci U S A Date: 2010-02-22 Impact factor: 11.205
Authors: Yongxia Zhou; Yvonne W Lui; Xi-Nian Zuo; Michael P Milham; Joseph Reaume; Robert I Grossman; Yulin Ge Journal: J Magn Reson Imaging Date: 2013-09-06 Impact factor: 4.813