This was accompanied by increased mitochondrial biogenesis and sirtuin 1 (SIRT1) expression and by up-regulated ROS defense system, with reduced oxidative damage, both in cardiac and skeletal muscles of middle aged mice [ 12].
Endothelial Tbdn expression was knocked down in TIE2/rtTA/Enh-TRE/ ASTBDN bi-transgenic middle aged mice using dietary Doxycycline (Dox Diet; 600 mg/kg; Bio-Serv, Frenchtown, NJ, USA), as previously described (Wall et al., 2004).
26 30 They have proved to be effective in the inhibition of brain acetylcholinesterase in ex vivo studies, while the so-called huprine X (4, Fig. 1), has been shown to ameliorate memory and learning activities in middle aged mice, as well as Alzheimer's disease related brain neuropathology in a transgenic mouse model.
Transcranial PBM, using near-infrared light which penetrates the scalp and skull, can significantly reduce damage from experimentally induced stroke in rats [ 10] and rabbits [ 15], can improve the memory performance of middle aged mice [ 16], and has been shown to reduce damage from acute stroke in humans [ 17, 18].
The mossy fiber boutons displayed a pathological increase of size, observable both in middle- aged mouse brains and in organotypic slices.
The immunohistofluorescence of cross sections and immunoblots of the gastrocnemius extracts of WT and DN-p38αAF/+ mice show the protein pool levels of total p38α and P-p38α in young, middle aged, and aged mice.
Several differentially expressed genes in middle aged-mice were related to hepatocyte proliferation.
mROS production in hepatocytes obtained from young WT mice did not show a significant difference compared to those from WT middle age mice.
Interestingly, casp2 deficient hepatocytes from middle age mice (12 months) had similar mROS neutralization kinetics to those of hepatocytes from old WT mice.
To address this we characterized oxidatively modified CKm from the quadriceps of young, middle-aged, and aged mice.
To directly examine age-related changes in protein structure and function, CKm was purified from the quadriceps of young, middle-aged, and aged mice.
