TZQ-F showed a tendency toward increasing GluT4 gene level in KK-Ay mice muscle compared with control group, which was also confirmed in L-6 myotube cells.
Bahar et al. [ 11] showed that there is an increase in cell-to-cell gene expression variation in aged mice's heart muscle compared to those of younger mice.
In another study, scid/mdx mice, which are deficient in functional T and B lymphocytes, were shown to develop much less diaphragm fibrosis at 1 year of age and a decrease in activated TGF β in skeletal muscle, compared with mdx mice.
Muscles of mdx mice showed a significantly higher variance coefficient in TA muscle compared to age-matched wild-type mice (C57BL/10: 362.10 ± 62.70, mdx: 426.72 ± 42.84, p = 0.035).
As shown in Figure 2C (quantified in D), hESC-produced factors induced higher levels of pERK1 and pERK2 in human and mouse muscle progenitor cells, as compared to cells cultured in medium conditioned by differentiated progeny of hESCs.
FOXO1 expression, normalized to β-actin, in low oxidative mouse muscles is higher compared to the high oxidative soleus muscle (Allen and Unterman 2007).
In contrast, when ST4 was used to characterize sample profiles, all human muscle and non-muscle samples from dataset H1-3 have lower correlations to mouse muscle profiles in dataset M compared to their ST1-3 samprofilefile characterization, and human muscle profiles show no significant correlation to any mouse muscle group.
Consistent with this notion, we found that glutaminase expression was increased by 7- to 11-fold in mouse sarcoma cells compared to normal mouse muscle, suggesting that this mechanism may be used by sarcoma cells to counteract glutamate reductions that may result from ASNS silencing.
Also, at 3 days post-cryolesion, 28% fewer nuclei were positive for Smad2/3 in muscles from β2KO mice, compared to muscles from WT mice at the same time point evaluated (P ≤ 0.05; Fig. 6).
Proteasome activity was significantly (P < 0.01) increased 2.3 fold in muscles from control, suspended muscle as compared to muscles isolated from weight bearing control mice.
