Life Sciences

Found results: 11545

Genetic engineering

How to make a boy out of a girl and teach mice to sing?

Christmas gifts from genetic engineers: they turned a female mouse into a male by activating the SOX3 gene in the genitals of a developing embryo with two X chromosomes, and (quite by accident!) they bred a breed of singing mice.

23.12.2010
Genetic engineering

"Zinc fingers" for gene modification – fast and inexpensive

Scientists from the University of Minnesota have collected an extensive archive of zinc fingers – nuclease enzymes necessary for manipulating genes. From their blocks, any scientist can easily get the zinc-containing nucleases he needs in less than a week.

21.12.2010
Other life sciences

Anatomy online

With the help of the virtual "anatomical theater" Google Body Browser, you can see the human body at different levels – the nervous and circulatory systems, skeleton, internal organs, musculature – and from different angles of view.

21.12.2010
Biomedicine

Biocompatible implants for bone restoration

Due to the factors of bone tissue growth, the implant not only serves as a support on which the bone grows, but in itself becomes an active principle that initiates the formation of bone tissue.

21.12.2010
Biomedicine

Nanosurgeons will operate on the tumor

Single-stranded DNA aptamers are able to bind to receptors on the surface of tumor cells, and magnetic nanoparticles connected to them allow the tumor to be torn to shreds.

20.12.2010
Nanotechnology

Gold nanorods for percutaneous drug delivery

Gold nanorods heated by near-infrared light may prove to be a better means of percutaneous drug delivery than conventional injections and even patches with nanoeedles.

20.12.2010
Bioethics

Rehabilitate eugenics?

Thanks to the efforts of the Nazis, the reputation of eugenics has been so tarnished that the word itself continues to be abusive. Meanwhile, this science could save people from disease, suffering, and even death itself...

20.12.2010
Nanotechnology

Macroporous ferrogel squeezes medicines into a sore spot

The new material, called macroporous ferrogel, can be compressed up to 70 percent by a magnetic field. Reversible metered compression removes drugs or cells and proteins embedded in the gel from the gel.

16.12.2010
Bioethics

Save the embryo – kill the man!

The draft law "On Biomedical Cell Technologies" provides for a ban on the use of "laboratory embryo plantations" in which embryos are "disassembled into cells." Critics consider the project to be very incomplete.

15.12.2010
Biomedicine

Binary drug for gene therapy

MGNC scientists are developing a gene therapy system in which both miRNAs that suppress the expression of unwanted genes and the surrounding "baskets" of DNA have a therapeutic effect.

14.12.2010
Cellular technologies

Beta cells from an intimate source

Insulin–producing cells were grown from spermatogonia - testicular stem cells. They did not have to be reprogrammed: during cultivation, the sperm progenitor cells themselves became pluripotent.

14.12.2010
Biomedicine

Putty for bones: on sale soon

A substance that is injected into a broken bone and restores its structure can completely displace metal structures and prostheses used in fractures.

14.12.2010
Biomedicine

How to mend the heart?

Worcester Polytechnic Institute researchers propose to mend damage to the heart and other organs with fibrin fibers seeded with stem cells.

14.12.2010
Cellular technologies

Human intestines from stem cells

The three-dimensional tissue grown from induced pluripotent stem cells performs all the functions of the normal human intestine, including the formation of intestinal stem cells.

13.12.2010
Cloning

How to get offspring from two individuals of the same sex?

By combining the genetic material of two male mice, scientists have obtained healthy offspring that do not carry a single gene obtained from a female. She became a surrogate mother in the full sense of the word.

13.12.2010