The potential and promise of mobile app development depends in large part on the creative capability of the app developer. In Africa, despite the explosion of mobile phones over the last few years, there is uncertainty regarding the state and need for more relevant apps. In this paper, we draw from a focus group discussion of African based experts and decision-makers from international agencies...

Cleavage of the Amyloid Precursor Protein (APP) generates amyloid peptides that accumulate in Alzheimer Disease (AD), but APP is also upregulated by developing and injured neurons, suggesting that it regulates neuronal motility. APP can also function as a G protein-coupled receptor that signals via the heterotrimeric G protein Gαo, but evidence for APP-Gαo signaling in vivo has been lacking. Us...

To kill a brain cell he consequences of amyloid formation by the amyloid precursor protein (APP) in Alzheimer's disease (AD) have been the focus of many studies, yet little is known about the nonpathogenic function of APP. On page 27, some progress is made in this direction by Chen et al., who show that APP induces a suicide pathway in neurons. APP initiates this death-inducing cascade when it ...

APP is a type I transmembrane protein. Its cleavage in the amyloidogenic pathway by βand γ-secretases produces the β-amyloid peptide (Aβ), the major constituent of senile plaques. In addition, the cleavage of the membrane-bound APP C-terminal fragments (CTFs) by γ-secretase releases the AICD (APP Intracellular Cterminal Domain), a soluble intracellular protein believed to control APP-dependent ...

Beta-amyloid peptides (Abeta) are the major component of plaques in brains of Alzheimer's patients, and are they derived from the proteolytic processing of the beta-amyloid precursor protein (APP). The movement of APP between organelles is highly regulated, and it is tightly connected to its processing by secretases. We proposed previously that transport of APP within the cell is mediated in pa...

Disruption to axonal transport is an early pathological feature in Alzheimer's disease. The amyloid precursor protein (APP) is a key axonal transport cargo in Alzheimer's disease since perturbation of its transport increases APP processing and production of amyloid-β peptide (Aβ) that is deposited in the brains of Alzheimer's disease patients. APP is transported anterogradely through axons on k...

When assayed on promastigotes of 10 American Leishmania isolates (including Leishmania brasiliensis and mexicana species), 4-aminopyrazolopyrimidine (AAP) was severalfold more active than allopurinol as a leishmanistatic drug. There were some intraspecific and interspecific differences among the isolates in their susceptibility to the inhibitory effects of APP and allopurinol. APP-2'-deoxyribos...

The amyloid protein precursor (APP) of Alzheimer's disease is synthesized as an integral transmembrane protein that is released from cells in culture following proteolytic cleavage. The function of released APP is not known, although there is evidence that the protein may bind to components of the extracellular matrix (ECM). In the present study, substratum-bound APP stimulated neurite outgrowt...

With the prevalence of smartphones, app markets such as Apple App Store and Google Play has become the center stage in the mobile app ecosystem, with millions of apps developed by tens of thousands of app developers in each major market. This paper presents a study of the mobile app ecosystem from the perspective of app developers. Based on over one million Android apps and 320,000 developers f...

In Alzheimer's disease there is abnormal brain copper distribution, with accumulation of copper in amyloid plaques and a deficiency of copper in neighbouring cells. Excess copper inhibits Abeta (amyloid beta-peptide) production, but the effects of deficiency have not yet been determined. We therefore studied the effects of modulating intracellular copper levels on the processing of APP (amyloid...