Publication Date:
2008-04-04
Description:
Understanding inter-individual differences in stress response requires the explanation of genetic influences at multiple phenotypic levels, including complex behaviours and the metabolic responses of brain regions to emotional stimuli. Neuropeptide Y (NPY) is anxiolytic and its release is induced by stress. NPY is abundantly expressed in regions of the limbic system that are implicated in arousal and in the assignment of emotional valences to stimuli and memories. Here we show that haplotype-driven NPY expression predicts brain responses to emotional and stress challenges and also inversely correlates with trait anxiety. NPY haplotypes predicted levels of NPY messenger RNA in post-mortem brain and lymphoblasts, and levels of plasma NPY. Lower haplotype-driven NPY expression predicted higher emotion-induced activation of the amygdala, as well as diminished resiliency as assessed by pain/stress-induced activations of endogenous opioid neurotransmission in various brain regions. A single nucleotide polymorphism (SNP rs16147) located in the promoter region alters NPY expression in vitro and seems to account for more than half of the variation in expression in vivo. These convergent findings are consistent with the function of NPY as an anxiolytic peptide and help to explain inter-individual variation in resiliency to stress, a risk factor for many diseases.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2715959/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉 〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2715959/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zhou, Zhifeng -- Zhu, Guanshan -- Hariri, Ahmad R -- Enoch, Mary-Anne -- Scott, David -- Sinha, Rajita -- Virkkunen, Matti -- Mash, Deborah C -- Lipsky, Robert H -- Hu, Xian-Zhang -- Hodgkinson, Colin A -- Xu, Ke -- Buzas, Beata -- Yuan, Qiaoping -- Shen, Pei-Hong -- Ferrell, Robert E -- Manuck, Stephen B -- Brown, Sarah M -- Hauger, Richard L -- Stohler, Christian S -- Zubieta, Jon-Kar -- Goldman, David -- K01 MH072837/MH/NIMH NIH HHS/ -- K02-DA17232/DA/NIDA NIH HHS/ -- P01 HL040962/HL/NHLBI NIH HHS/ -- P50-DA16556/DA/NIDA NIH HHS/ -- PL1 DA024859/DA/NIDA NIH HHS/ -- PL1 DA024859-02/DA/NIDA NIH HHS/ -- R01 DA 016423/DA/NIDA NIH HHS/ -- R01 DE 15396/DE/NIDCR NIH HHS/ -- R01 HL065137/HL/NHLBI NIH HHS/ -- R01 MH074697/MH/NIMH NIH HHS/ -- R01 MH074697-04A1/MH/NIMH NIH HHS/ -- R01-AA13892/AA/NIAAA NIH HHS/ -- Z01 AA000301-09/Intramural NIH HHS/ -- Z99 AA999999/Intramural NIH HHS/ -- England -- Nature. 2008 Apr 24;452(7190):997-1001. doi: 10.1038/nature06858. Epub 2008 Apr 2.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Neurogenetics, NIAAA, NIH, Bethesda, Maryland 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18385673" target="_blank"〉PubMed〈/a〉
Keywords:
Alleles
;
Anxiety/genetics
;
Anxiety Disorders/genetics
;
Brain/*metabolism/physiology/physiopathology
;
*Emotions
;
European Continental Ancestry Group/genetics
;
Facial Expression
;
Finland/ethnology
;
Gene Expression Regulation/*genetics
;
Genetic Variation/*genetics
;
Haplotypes/genetics
;
Humans
;
Lymphocytes/metabolism
;
Magnetic Resonance Imaging
;
Male
;
Neuropeptide Y/blood/*genetics
;
Opioid Peptides/metabolism
;
Pain/genetics
;
Polymorphism, Single Nucleotide/genetics
;
RNA, Messenger/genetics/metabolism
;
Stress, Physiological/*genetics/psychology
;
United States/ethnology
Print ISSN:
0028-0836
Electronic ISSN:
1476-4687
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
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