MetaFilter posts tagged with cells

Learn.Genetics

netbros — Sat, 31 Oct 2009 16:35:03 -0800

grumblebee's post about cell size and scale the other day was quite fascinating. Pulling back to the home for that site, the Genetic Science Learning Center at the University of Utah delivers educational materials on genetics, bio-science and health topics ranging from stem cells to gene therapy, and from epigenetics to heredity. Explore the neurobiology of normal and addicted brains and the genetic contribution to this chronic disease.

New Medical imaging technique

vvurdsmyth — Mon, 03 Aug 2009 22:32:15 -0800

Digital camera sensor used to make direct digital holograms of blood cells

DNA Not The Same In Every Cell Of Body

GuyZero — Thu, 16 Jul 2009 16:13:31 -0800

DNA Not The Same In Every Cell Of Body. "...calls into question one of the most basic assumptions of human genetics: that when it comes to DNA, every cell in the body is essentially identical to every other cell... if it turns out that blood and tissue cells do not match genetically, these ambitious and expensive genome-wide association studies may prove to have been essentially flawed from the outset"

Swamp Thing, I think I love you

kliuless — Wed, 22 Apr 2009 08:55:31 -0800

Slime Molds Show Surprising Degree of Intelligence - A creature with no brain can learn from and even anticipate events. (via)

Life Through the Lens

netbros — Mon, 30 Mar 2009 11:00:11 -0800

Microscope Imaging Station opens a door to the wonder of the microscopic world and allows the layman to explore it. They seek to recreate some of the excitement and wonder that the earliest biological researchers found. Features include cells with potential as well as bad oogy. The microscopic Galleries are inhabited by zygotes and organelles.

New Neurons Get Timestamped

homunculus — Sat, 31 Jan 2009 13:01:42 -0800

Newborn brain cells "time-stamp" memories. [Via]

Molecular Movies

Korou — Fri, 30 Jan 2009 10:10:33 -0800

Molecular Movies features cell and molecular animations, along with animation tutorials. Animations range from apoptosis, to microtubules, multiple sclerosis, and chromatin packing. A longer, narrated version of DNA visualization is available on Youtube. (via)

Shedding Light on Life

Frankieist — Sat, 19 Apr 2008 08:02:37 -0800

Light makes a comeback. “New technologies — more sophisticated imaging techniques, fluorescent molecules that act as beacons of light in the cell, and the computing power to gather and stitch together multiple images and create videos from high-powered microscopes — make it possible to harness one of light’s key advantages: gentleness. Unlike higher-resolution techniques, light microscopes can image biological structures without killing them or chemically fixing them. At Harvard, the resurgence of light microscopy is making it possible to see structures and events that have never before been seen in the context of living cells and organisms.” Also don't miss the video samples of “in vivo” imagining.

28 Days Later...more stem cells!

Asparagirl — Mon, 14 Apr 2008 09:32:43 -0800

Scientists have discovered that "endometrial regenerative cells" (ERC's) -- in other words, human menstrual blood -- contains stem cells. ERC-derived stem cells seem to have a number of superior traits to both bone marrow derived and umbilical cord derived stem cells, the previous gold standards: they can give rise to a variety of different cell lines without differentiation, they multiply more quickly than other stem cells, they are able to replicate more times without adversely mutating, and they apparently do not need to be closely genetically matched to the recipient. Now some women have even begun banking their menstrual blood to preserve their stem cells through a company called "C'Elle: Your Monthly Miracle" -- check out their FAQ and online video. This follows last May's announcement that menstrual blood derived cells can pretty much cure Duchenne Muscular Dystrophy in mice, a disease for which there is no current therapeutic treatment available.

Children's Hospital Boston

homunculus — Mon, 17 Dec 2007 13:54:59 -0800

Interactive Features at the Children's Hospital Boston's Website. [Via Mind Hacks.]

Stem cell research: Natural Born Killers?

Mave_80 — Tue, 10 Apr 2007 19:07:56 -0800

Stem Cell Research: An interesting argument on why Bush's policy on stem cell research doesn't make sense.

The Printing Industry Wakes Up

PeteNicely — Mon, 26 Mar 2007 08:03:55 -0800

Steath InkJet Printer Could Rock Industry I know that once your desktop printer reached a certain quality, you probably stopped caring about printing news at all. But suddenly there are a few breakthroughs to get excited about. Kodak's first inkjet printers have cut ink cartridge prices in half, Zink doesn't use ink at all and will fit in your pocket and now an Australian start-up is announcing a $200 printer that will print a page a second. And the inkjet connection to nanotechnology won't just mean cheaper printers. People are using inkjet heads to print microchips and even human cells. Fab@Home is trying to replicate the Altair phenomenon with 3D printers, and you can even get a ZPrinter 450 industrial-strength 3D printer for less than $40,000. How long before the word print means serving yourself the latest Stephen King, a pair of glasses or even a new kidney?

Print human skin

Termite — Mon, 30 Jan 2006 12:59:38 -0800

Need a patch of skin for that burn or perhaps some new brain cells? Print them. A team of British scientists have shown that cells could survive ink-jet printing. Ink-jet technology moves beyond paper.

Death as we know it will die.

sharksandwich — Sun, 30 Oct 2005 15:58:31 -0800

Death as we know it will die. If you wish to be a prophet, first you must dress the part. No more silk ties or tasseled loafers. Instead, throw on a wrinkled T-shirt, frayed jeans, and dirty sneakers. You should appear somewhat unkempt, as if combs and showers were only for the unenlightened. When you encounter critics, as all prophets do, dismiss them as idiots. Make sure to pepper your conversation with grandiose predictions and remind others of your genius often, lest they forget. Oh, and if possible, grow a very long beard. By these measures, Aubrey de Grey is indeed a prophet. The 42-year-old English biogerontologist has made his name by claiming that some people alive right now could live for 1,000 years or longer. Maybe much longer. Growing old is not, in his view, an inevitable consequence of the human condition; rather, it is the result of accumulated damage at the cellular and molecular levels that medical advances will soon be able to prevent — or even reverse — allowing people to go on living pretty much indefinitely.

This plant, what can't it do.

Mr_Zero — Fri, 14 Oct 2005 09:50:47 -0800

Here are three things that can help your brain grow new cells.
It's no wonder college makes you smarter.

Custom stem cells.

iron chef morimoto — Thu, 19 May 2005 15:59:56 -0800

Custom stem cells. South Korea produces a significant gain in stem cell research. Experts have suggested that the new technique may sidestep some of the ethical concerns that have hampered research in the US.

Each of us a cell of awareness

Wolfdog — Sun, 17 Apr 2005 08:55:01 -0800

The mitochondrion, the Krebs cycle and other cell biology animations. Flash.

Making Life in a Lab

mcgraw — Thu, 10 Feb 2005 07:31:29 -0800

When you create living, self-replicating cells from scratch in your lab, please include a barcode !

science

semmi — Mon, 20 Sep 2004 11:56:11 -0800

View the Milky Way at 10 million light years from the Earth. Then move through space towards the Earth in successive orders of magnitude until you reach a tall oak tree just outside the buildings of the National High Magnetic Field Laboratory in Tallahassee, Florida. After that, begin to move from the actual size of a leaf into a microscopic world that reveals leaf cell walls, the cell nucleus, chromatin, DNA and finally, into the subatomic universe of electrons and protons.

No stem cell research

homunculus — Wed, 24 Mar 2004 21:17:35 -0800

Thou shalt not make scientific progress. "Medical research is poised to make a quantum leap that will benefit sufferers from Alzheimer's, Parkinson's, muscular dystrophy, diabetes and other diseases. But George W. Bush's religious convictions stand in its way."

Gutenberg for the 20 and change.

pinto — Wed, 29 Jan 2003 08:57:18 -0800

Print life! Forget this photo-realism nonsense. Scientists have modified ink-jet printers to print living cells. Like many innovations in sci-tech, I find this scary and fascinating at the same time.

stupidsexyFlanders — Thu, 10 Oct 2002 07:39:31 -0800

Henrietta Lacks, a Baltimore housewife, died in 1951. Some of her cells did not die. In fact, had they been allowed to grow unchecked, they would have taken over the world by now. As it is, even as they proved invaluable to medical researchers, their baffling ability to regenerate resulted in contamination of three decades of cellular research, costing medical researchers millions of dollars. As far as science can tell, Henrietta's cells will never die. Creepy!

semmi — Wed, 15 May 2002 19:38:37 -0800

New Hope? Cancerous cells isolated by freezing, then killed with drugs. From the Independentco.uk (via New Scientist)

stbalbach — Fri, 08 Feb 2002 05:54:40 -0800

Scientists in the USA have discovered [NYTimes] a new cell in the eye responsible for resetting the biological clock. Its being called "heretical".. Not every day, Dr. Provencio said, do scientists find a new body function.