Project description:This SuperSeries is composed of the following subset Series: GSE24829: Gene expression data from striatal regions of MPTP-intoxicated mouse brain by acupuncture GSE24830: Gene expression data from cervical spinal cord regions of MPTP-intoxicated mouse by acupuncture Refer to individual Series
Project description:Parkinson’s disease (PD) is a representative neurodegenerative disease that is characterized the death of dopamine-generating cells in the substantia nigra (SN). Acupuncture stimulations at GB34 and LR3 resulted in the enhanced survival of dopaminergic neurons in the SN in the parkinsonism animal models. SN is known as an important player in brain function, in particular, movement. Behavioral tests showed that acupuncture stimulations improved the motor dysfunction in a previous study by almost 87.7%. This study investigated the changes of gene expression profiles in the SN regions of the relatively chronic parkinsonism model and demonstrated the genes that may be related to the inhibitory effect of acupuncture on the change in gene expression in the SN induced by an 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) intoxication using a whole transcript array. We investigated gene expression profile changes in the substantia nigral region of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced parkinsonism models after acupuncture at the acupoints GB34 and LR3
Project description:It has been shown that acupuncture at acupoints GB34 and LR3 inhibits the degeneration of nigrostriatal neurons in an 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) mouse model of Parkinsonâ??s disease. This preventative effect of peripheral acupuncture stimulation is hypothesized to be transmitted through the spinal cord to the nigrostriatal neurons. The gene expression profile changes following acupuncture at the acupoints were investigated in the cervical spinal cord of an MPTP-induced parkinsonism model using an Affymetrix genechip mouse gene 1.0 ST array. C57BL/6 mice were divided into four experimental groups; â? C: Control, â?¡ M: MPTP-treatment only, â?¢ MA: MPTP- and acupuncture-treatment at acupoints GB34 and LR3, â?£ MNA: MPTP- and acupuncture-treatment at non-acupoints. Total RNA was isolated from the cervical spinal cord regions of each experimental group (4 experimental group Ã? 2 samples of each experimental group = total 8 samples).
Project description:Acupuncture at acupoints GB34 and LR3 has been reported to inhibit nigrostriatal degeneration in parkinsonism models, yet the genes related to this preventive effect of acupuncture on the nigrostriatal dopaminergic system remain elusive. We investigated gene expression profile changes in the striatal region of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced parkinsonism models after acupuncture at the acupoints GB34 and LR3 C57BL/6 mice were divided into four experimental groups; â C: Control, â¡ M: MPTP-treatment only, ⢠MA: MPTP- and acupuncture-treatment at acupoints GB34 and LR3, ⣠MNA: MPTP- and acupuncture-treatment at non-acupoints. Total RNA was isolated from two brains' striatal regions of each experimental group (4 experimental group à 2 samples of each experimental group = total 8 samples).
Project description:In Parkinsonâ??s disease (PD), the progressive loss of substantia nigra dopamine cells has been associated with their vulnerability to oxidative stress, inflammation, and mitochondrial dysfunction. To identify multiple gene transcription alterations that may potentially underlie early stages of related degenerative processes in brain, we used the subcrhonic MPTP mouse model of PD and microarray analysis at 4 days post-MPTP when neurotoxic activity is maximal. Since PD results in gene changes throughout the brain, we assessed MPTP's effects in multiple regions: frontal cortex, striatum and midbrain. Experiment Overall Design: Mus musculus adults were randomly assigned to either MPTP or saline treatment groups. Brain regions of interest (frontal cortex, striatum and midbrain) were dissected from both groups for RNA extraction and hybridization on Affymetrix microarrays.
Project description:Acupuncture stimulations at GB34 and LR3 inhibit the reduction of tyrosine hydroxylase in the nigrostriatal dopaminergic neurons in the parkinsonism animal models. Especially, behavioral tests showed that acupuncture stimulations improved the motor dysfunction in a previous study. The thalamus is a crucial area for the motor circuit and has been identified as one of the most markedly damaged areas in Parkinson’s disease (PD), so acupuncture stimulations might also have an effect on the thalamic damage. We investigated gene expression profile changes in the thalamic region of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced parkinsonism models after acupuncture at the acupoints GB34 and LR3 C57BL/6 mice were divided into four experimental groups; ① C: Control, ② M: MPTP-treatment only, ③ MA: MPTP- and acupuncture-treatment at acupoints GB34 and LR3, ④ MNA: MPTP- and acupuncture-treatment at non-acupoints. Total RNA was isolated from two brains' thalamic regions of each experimental group (4 experimental group × 2 samples of each experimental group = total 8 samples).