Henry Stewart Talks

The Biomedical & Life Sciences Collection

Online Seminars By Leading World Experts
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Welcome to The Biomedical & Life Sciences Collection

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This collection of specially prepared animated audio visual presentations with synchronized narration is regularly updated and growing with over 1,500 talks.

RECENTLY ADDED TALKS  View All

Play 'G-Protein coupled receptors in drug discovery'

TOPICS COVERED IN THIS TALK

  • The G-protein coupled receptor superfamily
  • GPCRs as drug targets
  • Approved GPCR drugs
  • why the reduction in GPCR drugs
  • new screening technologies and new drug targets
Play 'Barrier mechanisms in the developing brain: protection or vulnerability?'

TOPICS COVERED IN THIS TALK

  • The brain develops within a well-defined internal environment
  • The properties of this internal environment are determined by transporters in the cellular interfaces between the blood, brain and cerebrospinal fluid
  • The transporters are effective because the intercellular spaces between the cells in the interfaces are sealed by tight junctions
  • The transporters are both influx and efflux and many are active very early in brain development
  • Although brain barrier mechanisms are present very early in development they are vulnerable to pathological conditions e.g. inflammation, which may result in barrier dysfunction and damage to the fragile developing brain
  • These mechanisms thus provide protection and a stable internal environment, but some may render the developing brain more vulnerable e. g. inward transport of toxins such as mercury via a normal amino acid transporter

RECENTLY ADDED SERIES  View All

Synapses, Neurotransmitters and Receptor Channels
Stem Cells
Recent advances in understanding and utilizing
Agricultural Genetics
Understanding and improving plants and animals for food and agriculture
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FREE TALK OF THE MONTH

Play 'Stem cells derived from amniotic fluid and placenta'
Stem cells derived from amniotic fluid and placenta More info
Prof. Anthony Atala

TOPICS COVERED IN THIS TALK

  • Introduction to the amniotic fluid and placenta
  • Collecting stem cells from the amniotic fluid or placenta
  • Cell markers in amniotic fluid or placenta derived stem cells
  • Amniotic fluid or placenta derived stem cells are able to form embryoid bodies
  • Uses of amniotic fluid or placenta derived stem cells: Immunomodulation
  • Uses of amniotic fluid or placenta derived stem cells: Regenerative medicine
  • Amniotic fluid or placenta derived stem cells can be differentiated into a variety of cell types
  • Amniotic fluid stems cells in the kidney
  • Necrotizing enterocolitis; a model and treatment with amniotic fluid stems cells
  • Clinical uses of amniotic fluid or placenta derived stem cells

POPULAR TALKS

Play 'Plant cell wall: structure and biosynthesis'
Plant cell wall: structure and biosynthesis More info
Prof. Debra Mohnen
Dr. Melani A. Atmodjo

TOPICS COVERED IN THIS TALK

  • Overview of plant cell wall functions
  • Primary and secondary walls
  • Types of polymers in plant cell walls
  • Organization of plant cell walls / plant cell wall models
  • Cell wall proteins
  • Structure and synthesis of lignin
  • Structure and synthesis of cellulose
  • Structure and synthesis of hemicelluloses
  • Structure and synthesis of pectic polysaccharides
Play 'One plus one is better than two: genome doubling in flowering plants'
One plus one is better than two: genome doubling in flowering plants More info
Prof. Doug Soltis

TOPICS COVERED IN THIS TALK

  • Polyploidy: traditional views and new paradigm
  • Success of the tetraploids: size matters
  • Ancient polyploidy and "hexaploidy"
  • Autopolyploids vs. allopolyploids
  • Origins of polyploid species
  • Polyploids as evolutionarily dynamic
  • Predictable and repeated evolution
  • Defining homeologs and homeolog loss
  • Tissue-specific expression of homeologs
  • Aneuploidy and its compensation
Play 'The Myc transcription factor network'
The Myc transcription factor network More info
Prof. Robert N. Eisenman

TOPICS COVERED IN THIS TALK

  • Myc plays a broad role in cellular functions
  • Deregulation of Myc is associated with many cancers
  • Myc and Mxd proteins heterodimerize with Max, bind DNA, and activate or repress transcription through recruitment of co-regulator complexes that in turn influence chromatin modifications
  • Myc family proteins are highly conserved and regulate cell growth by binding to many genes involved in translation and metabolism
  • Myc also has functions unrelated to transcription

TESTIMONIALS

"This is a very valuable collection of talks. Individually, they provide a fantastic orientation to a particular topic. Together, they constitute several fine upper division courses in specialized areas."
Dr. Vaughn Browne
University of Colorado Denver School of Medicine, USA

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