This subproject is one of many research subprojects utilizing theresources provided by a Center grant funded by NIH/NCRR. The subproject andinvestigator (PI) may have received primary funding from another NIH source,and thus could be represented in other CRISP entries. The institution listed isfor the Center, which is not necessarily the institution for the investigator.Mammalian Tolloid-like 1 (Tll-1) is an astacin metalloprotease that is a member of the Tolloid family of proteins. Tll-1 cleaves chrodin, an inhibitor of BMPs and potentiates tha activity of the BMPs. Prenatal stress and glucocorticoids decrease Tll-1 expression whereas voluntary exercise increases Tll-1 gene expression in the mouse hippocampus. In addition, during exercise it has been shown to increase the number of new neurons within the hippocampus of mice. We identified the presence of a potential hypoxia inducible factor 1 (HIF-1) binding site in the Tll-1 promoter. We hypothesize that T11-1 protein is a hypoxia-responsive gene. We theorize that intermittent hypoxia during exercise increases Tll-1 expression and may result in increased neurogenesis.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Exploratory Grants (P20)
Project #
5P20RR015567-09
Application #
7720360
Study Section
Special Emphasis Panel (ZRR1-RI-8 (02))
Project Start
2008-06-01
Project End
2009-05-31
Budget Start
2008-06-01
Budget End
2009-05-31
Support Year
9
Fiscal Year
2008
Total Cost
$20,624
Indirect Cost
Name
University of South Dakota
Department
Neurosciences
Type
Schools of Medicine
DUNS #
929930808
City
Vermillion
State
SD
Country
United States
Zip Code
57069
Burrell, Brian D (2017) Comparative biology of pain: What invertebrates can tell us about how nociception works. J Neurophysiol 117:1461-1473
Robertson, James M; Achua, Justin K; Smith, Justin P et al. (2017) Anxious behavior induces elevated hippocampal Cb2 receptor gene expression. Neuroscience 352:273-284
Novick, Andrew M; Mears, Mackenzie; Forster, Gina L et al. (2016) Adolescent social defeat alters N-methyl-D-aspartic acid receptor expression and impairs fear learning in adulthood. Behav Brain Res 304:51-9
Smith, Justin P; Prince, Melissa A; Achua, Justin K et al. (2016) Intensity of anxiety is modified via complex integrative stress circuitries. Psychoneuroendocrinology 63:351-61
Robertson, James M; Prince, Melissa A; Achua, Justin K et al. (2015) Nuance and behavioral cogency: How the Visible Burrow System inspired the Stress-Alternatives Model and conceptualization of the continuum of anxiety. Physiol Behav 146:86-97
Ranek, Mark J; Zheng, Hanqiao; Huang, Wei et al. (2015) Genetically induced moderate inhibition of 20S proteasomes in cardiomyocytes facilitates heart failure in mice during systolic overload. J Mol Cell Cardiol 85:273-81
Hahn, Elizabeth; Burrell, Brian (2015) Pentylenetetrazol-induced seizure-like behavior and neural hyperactivity in the medicinal leech. Invert Neurosci 15:177
Novick, Andrew M; Forster, Gina L; Hassell, James E et al. (2015) Increased dopamine transporter function as a mechanism for dopamine hypoactivity in the adult infralimbic medial prefrontal cortex following adolescent social stress. Neuropharmacology 97:194-200
Ranek, Mark J; Kost Jr, Curtis K; Hu, Chengjun et al. (2014) Muscarinic 2 receptors modulate cardiac proteasome function in a protein kinase G-dependent manner. J Mol Cell Cardiol 69:43-51
Watt, Michael J; Roberts, Christina L; Scholl, Jamie L et al. (2014) Decreased prefrontal cortex dopamine activity following adolescent social defeat in male rats: role of dopamine D2 receptors. Psychopharmacology (Berl) 231:1627-36

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