Only overexpression of LAT induced a reduction of brain proliferating cells and concomitant microcephaly.
In response to negative social evaluation, responders showed reduction of brain activity in limbic system regions (medial orbitofrontal cortex and hippocampus), which was largely lacking in non-responders.
The reduction of brain Aβ in guinea pigs in the absence of changes in B-cells suggested a potential therapeutic index with respect to APP processing compared with biomarkers of notch related toxicity.
Optimized indole GSM 29 exhibited good alignment of in vitro potency and physicochemical properties, and moderate reduction of brain Aβ42 was achieved in a rat efficacy model when dosed orally at 30 mg/kg.
The treatment with GGA, beginning before the induction of ICH and continuing until day 3, showed the reduction of brain water content and the increased level of HSP70 protein, as compared to the treatment with vehicle, although GGA started after the induction of ICH or administered as a single dose before ICH failed to up-regulate HSP70 and to reduce brain edema.
When tested in vivo, compound 2 demonstrated a significant reduction of brain and cerebral spinal fluid (CSF) Aβ40 levels (46%and66%6%, respectively) in a rat pharmacodynamic study and thus represents a suitable starting point for the further development of in vivo efficacious compounds for the treatment of Alzheimer's disease.
In contrast, MRI findings were substantially unmodified, showing only a mild reduction of brain sagging, with persistent subdural fluid collection in the same regions, epidural venous engorgement and diffuse meningeal enhancement in supratentorial and infratentorial regions (images not shown).
Protocol 1 resulted in a 17% reduction of brain uptake compared with the control group which was not scanned (short anesthesia of 6 min for humane decapitation; P < 0.01).
There has been debate on whether treatment with antipsychotics can itself cause reduction of brain volume.
The need to limit body weight in order, for example, to fly, has apparently led to selection for a reduction of brain size in some species, such as bats.
Recently it has been also demonstrated that the inactivation of AspM in mice produces a significant reduction of brain size [22].
