Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Healing old bones

25.09.2007
Cartilage, even if it is old, promotes inosculation of broken old bones. Specialists of the Chelyabinsk State Institute of Laser Surgery (Russian Academy of Medical Sciences) and the St. Petersburg Institute of Bioregulation and Gerontology (North-West Branch, Russian Academy of Medical Sciences) have developed a treatment for fractures.

The aging organism’s metabolism differs from the one in young days. Young bones are constantly renewed: old cells die off and they are replaced by new ones. These processes are slower in old bone tissue, therefore, if the bone breaks it is difficult to repair – the restorative potential is not as good as it was before. And bone strength is different as there are less mineral salts in aging bones.

Russian researchers have investigated methods of healing bones without extensive operations, long-term bone fixation or expensive stimulating drugs, using tests on animal subjects.

The experiments involved eighteen rabbits aged five to six years, divided into two groups. Researchers took part of the cranium parietal bone and ablated it under anaesthetic, observing how the hole on the bone healed up. In one group, the cartilage was placed into the wound, with the other group had the wound covered by a skin flap.

Researchers found that separated cartilage fragments in the bone gradually join with trabeculas of bone and pull collagen fibers with young fibroblasts towards them. Three weeks after the operation, a callus was formed and new blood vessels actively grew, with the wound healed by the end of the fourth week, with young conjunctive tissue beginning to ossify. As for the reference group animals, their bones did not heal by this stage. Researchers concluded that osteoplasty using the patient’s own cartilage stimulates the healing process of old bone fibres knitting together.

Nadezda Markina | alfa
Further information:
http://www.informnauka.ru

More articles from Health and Medicine:

nachricht Biofilm discovery suggests new way to prevent dangerous infections
23.05.2017 | University of Texas at Austin

nachricht Another reason to exercise: Burning bone fat -- a key to better bone health
19.05.2017 | University of North Carolina Health Care

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: A quantum walk of photons

Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.

The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....

Im Focus: Turmoil in sluggish electrons’ existence

An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.

We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...

Im Focus: Wafer-thin Magnetic Materials Developed for Future Quantum Technologies

Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.

Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...

Im Focus: World's thinnest hologram paves path to new 3-D world

Nano-hologram paves way for integration of 3-D holography into everyday electronics

An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...

Im Focus: Using graphene to create quantum bits

In the race to produce a quantum computer, a number of projects are seeking a way to create quantum bits -- or qubits -- that are stable, meaning they are not much affected by changes in their environment. This normally needs highly nonlinear non-dissipative elements capable of functioning at very low temperatures.

In pursuit of this goal, researchers at EPFL's Laboratory of Photonics and Quantum Measurements LPQM (STI/SB), have investigated a nonlinear graphene-based...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Marine Conservation: IASS Contributes to UN Ocean Conference in New York on 5-9 June

24.05.2017 | Event News

AWK Aachen Machine Tool Colloquium 2017: Internet of Production for Agile Enterprises

23.05.2017 | Event News

Dortmund MST Conference presents Individualized Healthcare Solutions with micro and nanotechnology

22.05.2017 | Event News

 
Latest News

Physicists discover mechanism behind granular capillary effect

24.05.2017 | Physics and Astronomy

Measured for the first time: Direction of light waves changed by quantum effect

24.05.2017 | Physics and Astronomy

Marine Conservation: IASS Contributes to UN Ocean Conference in New York on 5-9 June

24.05.2017 | Event News

VideoLinks
B2B-VideoLinks
More VideoLinks >>>