Systems analysis of genetic variation in MPTP neurotoxicity in mice

Jones, Byron C.; Miller, Diane B.; O’Callaghan, James P.; Lu, Lu; Unger, Erica L.; Alam, Gelareh; Williams, Robert W.

doi:10.1016/j.neuro.2013.03.010

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CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners. As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.

i

Systems analysis of genetic variation in MPTP neurotoxicity in mice

7 2013
By Jones, Byron C. ; Miller, Diane B. ; O’Callaghan, James P. ; ...
http://dx.doi.org/10.1016/j.neuro.2013.03.010
Source: Neurotoxicology. 37:26-34

[PDF-671.87 KB]

English

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Details:

Alternative Title:

Neurotoxicology
Personal Author:

Jones, Byron C. ; Miller, Diane B. ; O’Callaghan, James P. ; Lu, Lu ; Unger, Erica L. ; ... More +

Jones, Byron C. ; Miller, Diane B. ; O’Callaghan, James P. ; Lu, Lu ; Unger, Erica L. ; Alam, Gelareh ; Williams, Robert W. Less -
Description:

We analyzed genetic variation in severity of neuronal damage using the known dopaminergic neurotoxicant, MPTP, as a prototypical chemical denervation agent. Male mice from ten members of the BXD family of recombinant inbred strains received 12.5 mg/kg MPTP s.c. (vs. saline) and 48 h later brains were taken for multiple related biochemical analyses. Striatal dopamine (DA) and its metabolites, DOPAC and HVA, and serotonin and its metabolite, 5-HIAAA, were analyzed by HPLC. DA turnover was assessed using DOPAC/DA and HVA/DA ratios. Striatal tyrosine hydroxylase (TH), glial fibrilary acidic protein (GFAP), and iron content in ventral midbrain were quantified. All dopamine measures, as well as TH and GFAP, demonstrated wide, genotype-dependent differences in response to MPTP. Serotonin was largely unaffected. Principal components analysis (PC) on difference values, saline minus MPTP, for DA, DOPAC, HVA, and TH, yielded a dominant principal component. The PC trait residuals for each genotype were compared against complementary expression data for striatum of the same strains. Three transcripts representing Mtap2, Lancl 1, and Kansl1l were highly correlated with the PC, as was the difference score, MPTP minus saline for GFAP. This systems approach to the study of environmental neurotoxicants holds promise to define individual genetic differences that contribute to variability in susceptibility to risk factors for diseases such as Parkinson's disease.
Subjects:

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3,4-Dihydroxyphenylacetic Acid Animals Biomarkers Brain Disease Models, Animal Dopamine Gene Expression Regulation Genetic Predisposition To Disease Genetic Variation Genomics Glial Fibrillary Acidic Protein Homovanillic Acid Hydroxyindoleacetic Acid Iron Male Mice Mice, Inbred C57BL Mice, Inbred DBA MPTP Poisoning Multivariate Analysis Phenotype Principal Component Analysis Risk Factors Serotonin Species Specificity Systems Biology Tyrosine 3-Monooxygenase
Keywords:

[+]

BXD GFAP Multivariate Analysis Recombinant Inbred Strains
Source:

Neurotoxicology. 37:26-34
Pubmed ID:

23558233
Pubmed Central ID:

PMC4615717
Document Type:

Journal Article
Funding:

CC999999/ImCDC/Intramural CDC HHSUnited States/ ; U01 AA013499/AA/NIAAA NIH HHSUnited States/ ; U01 AA016662/AA/NIAAA NIH HHSUnited States/

CC999999/ImCDC/Intramural CDC HHSUnited States/ ; U01 AA013499/AA/NIAAA NIH HHSUnited States/ ; U01 AA016662/AA/NIAAA NIH HHSUnited States/ Less -
Volume:

37
Collection(s):

CDC Public Access
Main Document Checksum:

[+]

urn:sha256:3765726270f2f0bedabb7477d3fd2ca652fa7c8c5f27ddbc2867be70357e4370
Download URL:

https://stacks.cdc.gov/view/cdc/35280/cdc_35280_DS1.pdf
File Type:

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