Project 1 aims to identify the brain networks influenced by acupuncture and to explore the interactions among those brain regions in both healthy subjects and in patients with major depressive disorder (MDD). We hypothesize that the limbic system and default mode network (DMN) constitute major pathways of acupuncture action. Our studies on healthy adults have demonstrated that acupuncture is associated with extensive deactivation in a network of limbic-paralimbic-neocortical brain regions closely related to emotion, cognition, autonomic function and sensory processing. We have also discovered that the brain regions that make up the DMN overlap with the limbic-paralimbic-neocortical regions influenced by acupuncture. The renewal of our CERC will allow us to extend our studies on healthy subjects and translate our findings to MDD. MDD is a highly prevalent mood disorder that can be significantly disabling and a burden to economy, and is known to involve dysfunction of the limbic system. Treatment is problematic and recurrences are common. Several clinical studies suggest that acupuncture may be a safe and economical alternative treatment for depression. Our fMRI studies on healthy subjects demonstrate that acupuncture has prominent modulatory effects on the brain regions that are involved in MDD. We will apply fMRI to explore the possible presence of subsystems in the DMN and LPNN (limbic-paralimbic neocortical network) by comparing the central effects of acupuncture with those of cognitive task and tactile stimulation in healthy subjects. We hypothesize that the temporo-spatial characteristics of acupuncture effects on the DMN and LPNN will overlap for different tasks, but that the preferential spatial distribution will differ. We will compare the effects of these external stimuli on the functional and effective connectivity of these networks. Our studies in healthy subjects will pave the way to studies involving patients with MDD, in whom we will examine the DMN and LPNN responses to facial expressions of fear and anger and the influence of acupuncture compared to healthy controls. We will also explore the effects of acupuncture on the functional and effective connectivity of these circuits in MDD, and correlate possible changes in mood and peripheral autonomic functions with the central effects of acupuncture by fMRI. By demonstrating scientific evidence of acupuncture's beneficial effects on intrinsic regulatory brain organization, the investigation will help to promote the integration of this ancient treatment into modern medical practice.

Agency
National Institute of Health (NIH)
Institute
National Center for Complementary & Alternative Medicine (NCCAM)
Type
Research Program Projects (P01)
Project #
5P01AT002048-07
Application #
7837759
Study Section
Special Emphasis Panel (ZAT1-SM (11))
Program Officer
Huntley, Kristen V
Project Start
2003-09-26
Project End
2011-05-31
Budget Start
2010-06-01
Budget End
2011-05-31
Support Year
7
Fiscal Year
2010
Total Cost
$1,195,549
Indirect Cost
Name
Massachusetts General Hospital
Department
Type
DUNS #
073130411
City
Boston
State
MA
Country
United States
Zip Code
02199
Hwang, J W; Xin, S C; Ou, Y M et al. (2016) Enhanced default mode network connectivity with ventral striatum in subthreshold depression individuals. J Psychiatr Res 76:111-20
Maeda, Yumi; Kettner, Norman; Kim, Jieun et al. (2016) Primary somatosensory/motor cortical thickness distinguishes paresthesia-dominant from pain-dominant carpal tunnel syndrome. Pain 157:1085-93
Desbordes, Gaƫlle; Li, Ang; Loggia, Marco L et al. (2015) Evoked itch perception is associated with changes in functional brain connectivity. Neuroimage Clin 7:213-21
Hwang, J W; Egorova, N; Yang, X Q et al. (2015) Subthreshold depression is associated with impaired resting-state functional connectivity of the cognitive control network. Transl Psychiatry 5:e683
Napadow, V; Li, A; Loggia, M L et al. (2015) The imagined itch: brain circuitry supporting nocebo-induced itch in atopic dermatitis patients. Allergy 70:1485-92
Loggia, Marco L; Berna, Chantal; Kim, Jieun et al. (2015) The lateral prefrontal cortex mediates the hyperalgesic effects of negative cognitions in chronic pain patients. J Pain 16:692-9
Ay, Ilknur; Napadow, Vitaly; Ay, Hakan (2015) Electrical stimulation of the vagus nerve dermatome in the external ear is protective in rat cerebral ischemia. Brain Stimul 8:7-12
Ichesco, Eric; Schmidt-Wilcke, Tobias; Bhavsar, Rupal et al. (2014) Altered resting state connectivity of the insular cortex in individuals with fibromyalgia. J Pain 15:815-826.e1
Maeda, Yumi; Kettner, Norman; Holden, Jameson et al. (2014) Functional deficits in carpal tunnel syndrome reflect reorganization of primary somatosensory cortex. Brain 137:1741-52
Napadow, Vitaly; Li, Ang; Loggia, Marco L et al. (2014) The brain circuitry mediating antipruritic effects of acupuncture. Cereb Cortex 24:873-82

Showing the most recent 10 out of 87 publications