2012 Fiscal Year Final Research Report
Exploring novel genetic factors involved in sleep/wake regulation using inter-subspecific consomic strains established from MSM/Ms and C57BL/6J mice
| Project/Area Number |
22500380
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Laboratory animal science
|
|---|
| Research Institution | Hokkaido University |
|---|
Principal Investigator |
TERAO Akira 北海道大学, 大学院・獣医学研究科, 准教授 (10451402)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
SASAKI Nobuya 北海道大学, 大学院・獣医学研究科, 准教授 (20302614)
|
|---|
| Co-Investigator(Renkei-kenkyūsha) |
KOIDE Tsuyoshi 国立遺伝学研究所, マウス開発研究室, 准教授 (20221955)
|
|---|
| Project Period (FY) |
2010 – 2012
|
| Keywords | 睡眠 / 覚醒 / 脳波 / 実験用近交系マウス / 野生由来近交系マウス / コンソミックマウス / マイクロサテライトマーカー / 連鎖解析 |
|---|
| Research Abstract |
Comprehensive phenotypic analysis was performed in B6-Chr5CMSM (5C)and B6-Chr5TMSM (5T), a consomic strain with 1-45cM and 41-86cM segments of chromosome5 from MSM on a B6 background, respectively. Their parental strains, C57BL/6J (B6), a commonly used laboratory mouse strain, and MSM, a wild-derived inbred mouse strain whose genetic background is diverse from that of B6, were analyzed in parallel. MSM chromosome5 in the context of a B6 genetic background conferred distinct differences in phenotypesfrom B6 controls. 5C had more consolidated sleep than B6. 5T had three distinct differences from B6 that can be summarized as follows: 1) The longest wake duration of 5T was 2.6times longer than that of B6; 2) Theta peak frequency (TPF) during rapid eye movementsleep in 5T was significantly lower than that in B6; 3) 5T showed occasional (up to 19 events in 30 min) spontaneous electroencephalogram (EEG) discharges lasting around 1second, which was not observed in B6. The amplitude of such EEG discharges was twice ashigh as that of the normal waking EEG level with a peak frequency of 6-8Hz. In order to examine the hereditary patterns of these three phenotypes identified between B6 and 5T,sleep/wake in (B6×5T)F1 was analyzed and the results were compared with that of B6 and5T. As a result, (B6×5T)F1 had B6-like phenotypes in terms of TPF and EEG dischargefrequency. Therefore, in the next step, linkage analysis was performed using{(B6×5T)F1×5T}N2. As a result, the genetic region associated with both the longest wake duration and EEG discharges was suggested to be located around D5Mit338 (59cM), and that associated with TPF to be located around D5Mit338 (59cM) and/or D5Mit141 (74cM).
|
Research Products
(12 results)
-
[Journal Article] Proinsulin C-peptide activatesα-enolase: implications for C-peptide- Cell membrane interaction2012
Author(s)
Ishii, T., Fukano K., Shimada K., Kamikawa A., Okamatsu-Ogura Y., Terao, A., Yoshida T., Saito M., and Kimura K.
-
Journal Title
J. Biochem.
Volume: 152 (1)
Pages: 53-62
Peer Reviewed
-
[Journal Article] Neuropeptide Y activates phosphorylation of ERK and STAT3 in stromal vascular cells from brown adipose tissue, but fails to affect thermogenic function of brown adipocytes2012
Author(s)
Shimada, K., Ohno, Y., Okamatsu-Ogura, Y., Suzuki, Y., Kamikawa, A., Terao, A., and Kimura, K.
-
Journal Title
Peptides
Volume: 34(2)
Pages: 336-342
Peer Reviewed
-
[Journal Article] Possible involvement of uncoupling protein 1 in appetite control by leptin.2011
Author(s)
Okamatsu-Ogura, Y., Nio-Kobayashi, J., Iwanaga, T., Terao, A., Kimura, K., Saito, M.
-
Journal Title
Exp. Biol. Med.
Volume: 236 (11)
Pages: 1274-1281
Peer Reviewed
-
-
[Journal Article] Retinol binding protein 4 in dairy cows: its presence in colostrum and alteration in plasma during fasting, inflammation, and the peripartum period2010
Author(s)
Abd Eldaim, M. A., Kamikawa, A., Soliman, M. M., Ahmed, M. M., Okamatsu-Ogura, Y., Terao, A., Miyamoto, T., and Kimura, K.
-
Journal Title
J. Dairy Res.
Volume: 77(1)
Pages: 27-32
Peer Reviewed
-
-
-
-
-
-
-
