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- Structure of the blood-brain barrier
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1. The blood-brain barrier in Alzheimer’s disease
- Dr. Anika Hartz
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2. Tanycytes allow a tight BBB in the median eminence
- Prof. Esteban Rodriguez
- Dr. Juan Luis Blazquez
- Dr. Montserrat Guerra
- Nutrient transport
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3. Blood-brain barrier ion transport
- Prof. Martha O'Donnell
- Peptides and proteins
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4. Ingestive peptides
- Prof. William Banks
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5. Blood-brain barrier in health and disease
- Prof. Thomas Davis
- Overcoming the blood-brain barrier obstacle
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6. Expression vs. function of ABC transporters at the blood-brain barrier
- Prof. Jean-Michel Scherrmann
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7. The blood-brain barrier and CNS drug development
- Dr. Danica Stanimirovic
- Diseases involving the blood-brain barrier
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9. Inflammation and immune cell entry to the central nervous system
- Prof. Serge Rivest
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11. Ischemic blood-brain barrier and Alzheimer's amyloid plaques development
- Prof. Ryszard Pluta
- Latest Developments in the Field
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12. MRI approaches for neurovascular imaging
- Dr. Rick Dijkhuizen
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13. Brain-gut interactions in obesity 1
- Prof. Weihong Pan
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14. Brain-gut interactions in obesity 2
- Prof. Weihong Pan
- Archived Lectures *These may not cover the latest advances in the field
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15. Neurotrophins and the BBB
- Prof. Weihong Pan
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16. Vasoactive peptides and the blood-brain barrier
- Prof. Maria Deli
- Prof. Bela Kis
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17. In vivo systems
- Prof. Quentin Smith
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18. CNS-drug design
- Prof. Quentin Smith
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20. Stroke and the BBB
- Prof. Marilyn Cipolla
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21. Barrier mechanisms in the developing brain: mechanisms and misunderstandings
- Prof. Norman Saunders
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22. Barrier mechanisms in the developing brain: protection or vulnerability?
- Prof. Norman Saunders
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23. In vitro models of the blood-brain barrier
- Prof. Pierre-Olivier Couraud
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24. Glucose transport across the blood-brain barrier
- Prof. Luc Leybaert
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25. The blood-brain barrier and brain tumors
- Dr. Olaf van Tellingen
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26. Cellular composition of the blood-brain barrier
- Prof. N. Joan Abbott
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27. Features of mammalian CNS barrier systems
- Prof. Conrad Johanson
Printable Handouts
Navigable Slide Index
- Introduction
- Principles of ingestive peptides
- Obesity trends among U.S. adults
- Obesity as a disease
- Obesity has significant medical consequences
- Body weight regulation
- Diseases and conditions altering appetite
- Algebra of body weight
- New concepts on hormonal regulation
- Connection between the gut and the brain
- Peptides in brain and intestine
- A modern view of body weight control
- Blood to brain penetration
- Discovery of a mutation leading to obesity
- Discovering the leptin protein
- Leptin feedback loop
- Leptin levels are high in obesity
- Common form of obesity and leptin resistance
- Correlation of serum and CSF leptin levels
- Does "resistance" occur at the BBB?
- The BBB
- A classic experiment
- The CNS remains unstained
- Three modifications produce the BBB
- The BBB has a specific transport for leptin
- Correlation of serum and CSF leptin levels - human
- Correlation of serum and CSF leptin levels - mice
- Whole brain perfusion ratios in mice on a log scale
- Example of similar relations
- The system is saturated at high leptin serum levels
- Leptin signals adequate nutritional reserves
- What are our ancestral levels of leptin?
- Leptin levels can be measured in wild animals
- Lower leptin levels in animals living the wild
- Wild baboons in a more western lifestyle
- A wild baboon living in the jungle
- A wild baboon who feeds from garbage
- Levels of leptin in the two groups of baboons
- Medical diagnosis in wild baboons
- Leptin resistance and modern life style
- BBB leptin resistance in animal models of obesity
- Results from the obesity of maturity model
- 70% decrease in obese mice leptin transport rate
- Inhibition of leptin transport across the BBB
- BBB defects are reversible
- Evidence for regulation of the leptin transporter
- A substance in blood impairs leptin transport
- What factor is released in starvation and obesity?
- Triglycerides in blood inhibit leptin transport
- Triolein inhibits leptin transport
- Manipulating serum triglycerides by diet
- Gemfibrozil affect leptin transport
- Triglycerides inhibit labelled leptin transport in vitro
- Conclusion of triglycerides and leptin
- Why does leptin resistance develop in obesity?
- Circuitry during normal feeding and starvation
- Fat produces and acts upon many substances
- Other substances that affect feeding
- Broad categorical order in the digestive peptides
- Anorectic and orexigenic peptides
- Peptides produced by peripheral tissues and CNS
- Different categorization for substances
- Cost/benefit analysis in searching for food
- How ingestive peptides are inter-related?
- MSH inhibit feeding, Agouti stimulates feeding
- Agouti polymorphisms and POMC mutants
- Syndecans in feeding and fasting
- Ghrelin peptide
- Active form of ghrelin is octanoylated
- Leptin and ghrelin actions review
- Ghrelin is episodically released
- Ghrelin has high uptake across hippocampus BBB
- Ghrelin promotes LTP generation
- Ghrelin enhances learning and memory
- Conclusions
Topics Covered
- Ingestive peptides
- Transport across the blood-brain barrier
- Relation to obesity
- Control of transporter and implications for body weight control
- Ghrelin and its relation to the blood-brain barrier and body weight control
Links
Series:
Categories:
Therapeutic Areas:
Talk Citation
Banks, W. (2008, March 1). Ingestive peptides [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved December 21, 2024, from https://doi.org/10.69645/DELD4279.Export Citation (RIS)
Publication History
Financial Disclosures
- Prof. William Banks has not informed HSTalks of any commercial/financial relationship that it is appropriate to disclose.