Articles

Found results: 16245

Biomedicine

How does "Homunculus" work?

In six cells of the "Homunculus", cells of organs (intestines, liver, lungs, heart, brain, skin) are cultivated, washed by the culture medium. In a closed system, conditions have been created that simulate the "life" of one hundred thousandth of a person.

22.04.2013
Nanotechnology

Caution: Gold nanoparticles!

Even in very low concentrations, gold nanoparticles, including those included in personal hygiene products, disrupt the work of adipose tissue stem cells, potentially impairing the ability of many organs to regenerate and, accordingly, accelerating the aging of the body.

22.04.2013
Other life sciences

The role of cholesterol in Alzheimer's disease – "acquired Down syndrome"

Cholesterol disrupts the process of chromosome distribution during cell division, which leads to the accumulation in the body of cells with trisomy on the 21st chromosome, which is the cause of Down syndrome, and increases the risk of developing Alzheimer's disease and other pathologies.

19.04.2013
Cellular technologies

Stem cells against amyotrophic lateral sclerosis

The FDA has approved a phase II clinical trial of ALS therapy, which will determine the maximum allowable dose of nerve stem cells injected into the spinal cord and study the potential effects of treatment.

19.04.2013
New in Gerontology

Is senile dementia associated with increased plasticity of synapses?

Contrary to the generally accepted opinion, it turned out that with age, the rate of formation of new and disappearance of existing synapses between brain neurons does not decrease, but increases, and the size of synapses changes more than in the brains of young animals.

19.04.2013
Prolonging youth

Biogerontology for dummies

Biogerontology is a very broad field of knowledge that studies the processes of aging and the mechanisms of combating it. It includes many other branches of science, such as regenerative medicine, various intracellular processes and processes occurring at the body level.

19.04.2013
Cellular technologies

Treatment of heart failure: ultrasound + cell therapy

Preliminary exposure to the heart tissue by a shock wave of ultrasound increases the effectiveness of the introduction of bone marrow mononuclear cells, carried out as part of the therapy of chronic post-infarction heart failure.

19.04.2013
Various

Patch with microneedles instead of surgical braces

The idea of a non-traumatic patch for fixing the edges of wounds or skin flaps during skin transplantation, the effectiveness of which is 3.5 times higher than that of surgical braces, the authors looked at a worm parasitizing in the intestines of fish.

18.04.2013
Your health

Weight loss – reducing the risk of cancer

In overweight and obese women who are at risk for developing endometrial cancer, after surgical weight correction, the concentration of oncological biomarkers and markers of inflammation significantly decreases and the condition of the endometrium normalizes.

18.04.2013
Your health

Once again about the benefits of circumcision

Male circumcision reduces the diversity of bacteria living on the skin of the penis, which may partly explain why this procedure reduces the risk of HIV infection.

18.04.2013
Other life sciences

Cellulite injection: clinical studies continue

As part of a phase I clinical trial, the introduction of collagenase into the posterior surface of the thighs after a day led to a 77% decrease in the severity of cellulite. In a few months, the developers of the method plan to start phase II.

17.04.2013
Innovative Russia

What hinders the development of the St. Petersburg pharmaceutical cluster?

The creation of a medical cluster in St. Petersburg was announced in 2009, and since then they have been reporting annually on the successes and prospects of this undertaking, but there are so many pitfalls in pharmaceuticals that one association of manufacturers in a cluster cannot solve them.

17.04.2013
Nanotechnology

Nanodiamonds against triple negative breast cancer

The targeted delivery system of nanodiamond-based chemotherapy drugs increases the effectiveness of treatment and reduces the risk of side effects of treatment of triple-negative breast cancer characterized by particular aggressiveness.

17.04.2013
Other life sciences

We are not beavers. Beavers are not us

American bioengineers have developed a technology for producing food starch from sawdust. So far, it costs $50,000 per kilogram, but scientists suggest reducing the cost of a portion of carbohydrates to 50 cents per person per day.

17.04.2013
Biomedicine

A bolt with a left thread was found on the tricky microbes

A new broad–spectrum antibiotic, active against "super-microbes" - microorganisms resistant to the action of other antibacterial agents, and not addictive to bacteria, has been successfully tested on animals.

17.04.2013
Your health

Bra does more harm than good

According to the results of a study involving 320 young women, the constant wearing of a bra does not help to reduce back pain and weakens the muscles supporting the breast, which contributes to its sagging.

16.04.2013