regulation

Tip of the Week: CircuitsDB for TF/miRNA/gene Regulation Networks

submitted by: OpenHelix
For more information about this tip and resource see our blog post at http://blog.openhelix.eu/?p=5360. In this tip we introduce CircuitsDB, a database of MicroRNA / Transcription Factor Regulatory Circuits in Human and Mouse. We demonstrate a basic search and then explore the information provided in the result reports.

Genes and Cells that Determine the Lifespan of C. elegans - Part 2: The Regulation of Aging by Signals from the Reproductive System, and, also, a Link Between Aging and Tumor Growth (37:16)

submitted by: video_collector
Once it was thought that aging was just a random and haphazard process. Instead, the rate of aging turns out to be subject to regulation by transcription factors that respond to hormones and other signals. In the nematode C. elegans, in which many key discoveries about aging were first made, the aging process is subject to regulation by food intake, sensory perception, and signals from the reproductive system. Changing genes and cells that affect aging can lengthen lifespan by six fold, and...

Apoptosis: Part 3: Extrinsic Pathway and Regulation of Apoptosis (23:59)

submitted by: scivee-team
Apoptosis a form of programmed cell death that plays important roles during animal development, immune response, elimination of damaged cells, and maintenance of tissue homeostasis. Apoptosis is executed by intracellular proteases named caspases that are activated during the onset of apoptosis by extrinsic and intrinsic pathways. The intrinsic pathway is triggered by the release of proteins such as cytochrome c from mitochondria to cytosol and the extrinsic pathway is activated by the binding...

The Importance of Marine Picoeukaryotes and the Search for Lost Time

submitted by: dougramsey
Unicellular eukaryotes are responsible for a massive amount of photosynthetic carbon fixation in marine systems. The smallest among these fall within the “pico” size fraction (<2 micrometers in diameter), are broadly distributed – from coastal to open-ocean environments – and are highly diverse. Picoeukaryotes contribute a significant proportion of the biomass and primary production within this size fraction, often rivaling their cyanobacterial counterparts Prochlorococcus and...

The Living Matrix

submitted by: thelivingmatrix
"The Living Matrix: The Science of Healing," trailer; The movie uncovers new ideas about the intricate web of factors that determine our health and interviews a group of dedicated scientists, psychologists, bioenergetic researchers and holistic practitioners, who are finding healing potential in new places. (The energetic information-based medicine looks particularly powerful.) http://www.thelivingmatrixmovie.com/

Genes and Cells that Determine the Lifespan of C. elegans - Part 1: An Evolutionarily-Conserved Regulatory System for Aging (42:46)

submitted by: video_collector
Once it was thought that aging was just a random and haphazard process. Instead, the rate of aging turns out to be subject to regulation by transcription factors that respond to hormones and other signals. In the nematode C. elegans, in which many key discoveries about aging were first made, the aging process is subject to regulation by food intake, sensory perception, and signals from the reproductive system. Changing genes and cells that affect aging can lengthen lifespan by six fold, and...