MetaFilter posts tagged with Biology and stemcells

Clones produced from mice frozen for 16 years

homunculus — Tue, 04 Nov 2008 13:42:14 -0800

Production of healthy cloned mice from bodies frozen at −20°C for 16 years. Mammoths next?

retrovirally transforming pancreatic cells from adult mice into insulin-producing beta cells

kliuless — Wed, 27 Aug 2008 19:51:39 -0800

Scientists Repurpose Adult Cells - "Scientists have transformed one type of fully developed adult cell directly into another inside a living animal, a startling advance that could lead to cures for a variety of illnesses and sidestep the political and ethical quagmires associated with embryonic stem cell research." [nature abstract, nature writeup, audio announcement]

Stem Cell Breakthrough

homunculus — Fri, 01 Aug 2008 20:32:15 -0800

Scientists report a breakthrough in stem cell production: Stem cells created from ALS patient and used to make neurons. [Via]

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.]

Fishy miscegenation

orthogonality — Sat, 15 Sep 2007 01:57:27 -0800

More cuckoo than cuckoos: mate two salmon, get a... trout! Just give the parents a sperm transplant. And the sperm stem cells work in females too:

...Injecting the male cells into female salmon sometimes worked, too, prompting five female salmon to ovulate trout eggs.... The stem cells were still primitive enough to switch gears from sperm-producers to egg-producers when they wound up inside female organs....

Adult skin stem cells heal spinal injuries

Artifice_Eternity — Thu, 06 Sep 2007 20:50:06 -0800

Canadian scientists heal spinal injuries with stem cells from skin (in rats). "Over the course of their research, the team found that skin-derived stem cells share characteristics with embryonic neural stem cells, which generate the nervous system. ... After 12 weeks, the rats were able to walk better, with more co-ordination." Previously on the Blue: Making adult stem cells embryonic, regenerating liver tissue with adult bone marrow stem cells

Embryo-free Embryonic Stem-Cells

homunculus — Thu, 07 Jun 2007 11:56:32 -0800

Simple switch turns cells embryonic. "Researchers have finally hit the jackpot: Embryo-free embryonic stem-cells!"

Sperm Precursor Cells Created From Stem Cells

jason's_planet — Sat, 14 Apr 2007 08:55:15 -0800

Scientists say they have successfully made immature sperm cells from human bone marrow samples.

British Scientists Grow Heart Valve Tissue from Stem Cells

jason's_planet — Tue, 03 Apr 2007 08:09:25 -0800

A British research team led by the world's leading heart surgeon has grown part of a human heart from stem cells for the first time.

Creating Liver Tissue from Bone Marrow Stem Cells

jason's_planet — Thu, 29 Mar 2007 07:58:46 -0800

For the first time, researchers have used adult bone marrow stem cells to regenerate healthy human liver tissue, according to a study published in the April issue of the journal Radiology.

Sea squirts are totally sweet

homunculus — Tue, 06 Mar 2007 21:58:32 -0800

Sea Squirt Regrows Entire Body from One Blood Vessel. Most famous as the creature that settles down and eats its own brain (though that is not exactly correct), it appears the humble sea squirt has spectacular regenerative abilities as well, thanks to regeneration niches packed with stem cells. All glory to the sea squirt!

Creation of Lung Cells from Embryonic Stem Cells

jason's_planet — Thu, 01 Mar 2007 12:25:08 -0800

"Molecular scientists . . . have developed a new procedure for the differentiation of human embryonic stem cells, with which they have created the first transplantable source of lung epithelial cells."

Stem Cells in nature

Gyan — Sun, 02 Jul 2006 08:12:29 -0800

Nature has a somewhat technical but free supplement on stem cells (alongwith a podcast and related blog).

Stem Cells - Rumor vs. Reality

daksya — Sun, 26 Jun 2005 23:04:08 -0800

Stem cell pioneer does a reality check

Stem cell research guidelines

homunculus — Tue, 03 May 2005 10:14:33 -0800

The National Academies have finally released suggested guidelines for research with embryonic stem cells and chimeras .

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."