The SENSible Blog discusses the development of rejuvenation biotechnology around the world: progress being made in the field of longevity, the design of medical therapies to cure, reverse and prevent the diseases and disabilities of aging, and much more.

Our content is a blend of popular interest articles – labelled “Easy Reads”, and designed to require no specific background knowledge – as well as more detailed scientific commentaries, labelled as “In-Depth” and aimed towards readers with some grounding in the biological/medical sciences.

In-Depth

Overtime Pay for the Municipal Waste Team

A comprehensive suite of rejuvenation biotechnologies must include the removal of extracellular aggregates from aging cells and tissues, particularly the brain. Recent work indicates that up-regulation of the activity of the native lysosomal pathway for clearance of beta-amyloid (Abeta) by the small molecule PADK can reverse existing Alzheimer-like pathology in mouse models, although caution is required in interpreting these results in the context of human disease.

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In-Depth

Robust, Realistic, Relevant Rejuvenation with Tau-Targeting Immunotherapy

Neurofibrillary tangles – accumulations of abnormal tau protein – are thought to play a central role in Alzheimer’s disease and other neurodegenerative conditions. Here we review a recent report in which immunotherapy was used to clear tau aggregates from a highly accurate mouse tauopathy model, resulting in functional recovery on multiple cognitive tests.

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In-Depth

Efficient, Mutation-Free, Large-Payload Gene Therapy of iPS

Efficient, safe methods of gene therapy will be essential enabling technologies for the repair or obviation of several of the cellular and molecular lesions driving age-related disease and dysfunction. A recent paper from the Scripps Institute demonstrates a major step in this direction with the successful use of helper-dependent adenoviral vectors to rescue cells defective in lamin A, without detectable mutational side-effects.

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In-Depth

Rescue of Oxidative Phosphorylation with “Allotopic” mRNA

At the third SENS conference, Dr. Samit Adhya of the Indian Institute of Chemical Biology presented a proof-of-principle for the use of an RNA import complex adapted from the parasite Leishmania to import arbitrary antisense RNA strands into mammalian mitochondria, reducing levels of a target protein by RNA interference. In a new study, Adhya’s group reports the successful use of the same technique to deliver mRNA sequences corresponding to proteins of the electron transfer chain, rescuing mitochondrial function in cells with mutations or deletions in those genes.

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Easy Read

Doris Taylor: Recellularized Human Hearts May be Weeks Away

Dr. Doris Taylor, the researcher whose team successfully engineered a live, beating rat heart via the technique of decellularisation and reseeding, has announced progress towards repeating the process with human tissue. Press reports based on Dr. Taylor’s presentation at the American College of Cardiology’s 60th Annual Scientific Session indicate that the hearts are growing well and are expected to begin beating within the next few weeks.

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In-Depth

How (Not) to Run a Lifespan Study

Much of the distraction in the literature of biogerontology, and an even higher ratio of studies cited and promoted in the popular media and the dietary supplement industry, derives from methodologically-poor lifespan studies in mice (or occasionally rats). In these studies, an increase in mean or maximal lifespan is reported, relative to short-lived controls, and claimed to be informative about the universal, degenerative aging process and the prospects for extending healthy life in humans living in the developed world.

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