Table 1. Blood variables, atherosclerosis and gene expression in aorta of lean and obese mice.
C57BL/6J | LDLR-/- | Ob/Ob | DKO | ANOVA | |
---|---|---|---|---|---|
N = 10 | N = 8 | N = 10 | N = 12 | ||
A. Weight and blood variables | |||||
Gender (male, n) | 5 | 4 | 5 | 6 | |
Weight (g) | 27±4.4 | 26±5.0 | 68±3.5***/††† | 63±3.3**/† | P<0.001 |
ADN (μg/mL) | 5.5±1.9 | 4.0±1.0 | 4.7±0.9 | 2.8±1.7**/‡ | P<0.01 |
Glucose (mg/dL) | 76±12 | 77±6.8 | 117±24**/†† | 136±45***/††† | P<0.001 |
IPGTT a | 35±1.5 | 49±7.3 | 56±12** | 84±25***/† | P<0.001 |
Insulin (mU/L) | 72±15 | 51±17 | 94±60 | 181±76**/†††/‡ | P<0.001 |
HOMA-IR | 1.4±0.35 | 0.96±0.31 | 2.7±1.6 | 6.6±4.1**/††† | P<0.001 |
Total C (mg/dL) | 54±13 | 155±44** | 63±22 | 467±89***/‡‡‡ | P<0.001 |
TG (mg/dL) | 43±16 | 45±20 | 28±4.9 | 196±45**/††/‡‡‡ | P<0.001 |
B. Atherosclerosis | |||||
Plaque volume b | ND | 19±15 | ND | 87±22††† | - - |
MQ (%) | ND | 21±11 | ND | 28±11 | - - |
Oxidized LDL (%) | ND | 5.0±3.0 | ND | 12±5.0†† | - - |
SMC (%) | ND | 5.0±5.2 | ND | 8.2±6.2 | - - |
C. Gene expressions in aorta | |||||
Mt-co1 | 1.05±0.36 | 2.63±1.23 | 1.07±0.25†† | 0.54±0.18*/†††/‡‡ | P<0.001 |
Tfam | 1.02±0.21 | 1.04±0.45 | 0.88±0.26 | 0.63±0.13* | P<0.001 |
Cox4i1 | 1.06±0.35 | 0.91±0.47 | 0.47±0.04***/† | 0.64±0.16* | P<0.001 |
Cox10 | 1.06±0.36 | 1.13±0.55 | 0.70±0.15* | 0.82±0.18 | P<0.01 |
Mcp1-to-Cd206 ratio | ND | 1.00±0.24 | ND | 3.86±1.16††† | - - |
Data shown are means ± SD. Abbreviations: ADN: adiponectin; AUC: area under curve; C: cholesterol; HOMA-IR, homeostasis model assessment of insulin resistance; IPGTT: intraperitoneal glucose tolerance test; MQ: SMC: smooth muscle cells; TG: triglyceride. a Area under curve x 103; b total plaque volumes were expressed in x 10−3 μm³, measured on Oil Red O stained sections. ND: detectable. Because C57BL6 and ob/ob mice did not have atherosclerotic plaques; ANOVA was not performed.
*P < 0.05
**P < 0.01 and
***P < 0.001 compared with C57BL/6J;
†P < 0.05
††P < 0.01
†††P < 0.001 compared with LDLR(-/-);
‡P < 0.05
‡‡P < 0.01
‡‡‡P < 0.001 compared with ob/ob.