feb 3 notes - Discussions meet this week No discussion...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Discussions meet this week No discussion switching after today PPT change Today: Cell biology and society Light microscopy >> confocal microscopy Immortality Telomeres Parts of DNA Mitotic clocks: get shorter with each replication and division. Gets so short, cell death occurs; can we stabilize? YES Resveratol Sir2 gene Recently discovered, ‘longevity gene’ Highly conserved and found in many organisms Most interesting; YEAST. o Activation of Sir2 in yeast increases the lifespan 30x What activates Sir2? o Compound that activates Sir2 is Resveratrol o Antioxidant found in red grapes/red wine Sirtis is a company in Cambridge developed analogs of Resveratrol which are more potent; Resveratrol has a double life. Cancer Freezing cancer cells as a treatment Experiment o Normal cells and cancer cells. o Freeze and add Resveratrol then the cells are normal, if they normal to begin with. o Freeze and add Resveratrol then cells die, if they were cancer. Bioprocessing Add Resveratrol to some of these processes, cell viability improves. Microscopy Around 1600’s o Hooke used word ‘cells’ o Leeuwenhoek 1838: Schleinen and Schwann o Cell theory Big Outlier: Neurons o Controversy: People believed in Reticular theory o Brain was more like vascular system; non cellular o Neuryal Theory
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
o Cells, golgi, with silver stain Microscopy- How to begin What microscope to use? How do we prepare the specimen?
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/13/2009 for the course BIOL 311 taught by Professor Vanbuskirk during the Spring '08 term at Binghamton University.

Page1 / 5

feb 3 notes - Discussions meet this week No discussion...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online