At TEDxYouth@Manchester, genetics researcher Dan Davis introduces the audience to compatibility genes — key players in our immune system’s functioning, and the reason why it’s so difficult to transplant organs from person to person: one’s compatibility genes must match another’s for a transplant to take.
(Images from Davis’s talk, Drew Berry’s animations, and the TED-Ed lessons A needle in countless haystacks: Finding habitable worlds - Ariel Anbar and How we conquered the deadly smallpox virus - Simona Zompi)
Never really realized how much fat was inbetween organs too!
This is why people shouldn’t get discouraged when they first start losing weight. Its not gonna come off your tummy and thighs first its gonna come off between the organs.. where it shouldn’t be!
These visualizations are some of my biggest short-term motivators. They help me remember that a lot of the physical changes that occur from healthy habits are in parts we can’t see.
I couldn’t agree with Risa more. It’s easy to get discouraged when you feel like your hard work isn’t yielding any results, but things like this help me to remember that progress isn’t always visible. But that certainly doesn’t mean it isn’t occurring.
- serious complication of inflammatory bowel disease and infectious colitis
- plain AXR shows dilated bowel loops, diameter >6cm
- impending perforation = surgical emergency
- mortality high 15-25%
Hoy, 29 de julio, se cumple un aniversario más de la muerte de unos de los más grandes personajes de la Argentina del siglo XX. Hace exactamente 11 años, se quitaba la vida de un disparo (por las dificultades económicas de su Fundación y creyendo que así el país tomaría conciencia del mal…
A hairy death
Apoptosis or programmed cell death is an essential part of life. For example, it’s critical to human development. Where would we be if every fetal cell survived? Some cells must die to form, say, our fingers and toes; others must perish to shape our functional brains.
Cells frequently commit suicide for the good of the whole. They may become apoptotic in response to viruses or gene mutations in order to prevent further damage. Menstruation relies upon programmed cell death.
Apoptosis may be necessary, but it’s not necessarily pretty. Above is a scanning electron micrograph of several cultured HeLa cancer cells. The cell at the center is undergoing apoptosis. During the process, the cell’s cytoskeleton breaks up, causing the outer membrane to bulge and decouple. The resulting wart-like structures are called blebs, which eventually break off and are consumed by phagocytic cells for recycling.