Showing posts with label Medicine. Show all posts
Showing posts with label Medicine. Show all posts

Monday, 30 March 2015

Americans secretly modified human DNA

Leading US scientists have secretly carried out extensive work by altering the DNA of human embryos, which could lead to the creation of "designer babies". Proponents of these games with the human species considered that the technique could bring a revolution in medicine, allowing scientists to prevent genetic hereditary diseases and significantly reduce the chances of transmission.

However, the treatment has caused controversy, and critics say tampering with human code is dangerous and unacceptable.

It is believed that American scientists have conducted research on the egg cells taken from a woman who suffers from a hereditary disease - ovarian cancer - to explore the possibility of eventual changes in gene expression and thus create an embryo that does not have this hereditary disease. The work was published last year by Luan Yang, a scientist who works in the laboratory of the famous geneticist George Church.


Professor Church is insisted that everything is in the experimental stage and added that the experiments didn't carried out on people. It is believed that a several laboratories working on changing the DNA of human embryos, which means that scientists can attempt to change the personality of people like improving physical predisposition and intellectual abilities.

Professor John Parrington, from Oxford University said that this discovery he had expected, but not so early and it's very effective and beneficial treatment.

However, there are those who warn of the potential dangers of altering the genome of human embryos. It may have unforeseen consequences for future generations and that makes him dangerous and unacceptable.
 

Friday, 16 January 2015

Artificial sperm and egg cells made of skin!

Scientists from Cambridge made a revolution and from skin create artificial sperm and egg cells.

This process scientists have previously been able to carry out on laboratory rats, but this is the first time that they managed to do that with people.

"Researchers would in the future be able to produce sex cells, genetically identical cells prospective parents," says psychology professor and reproduction at Cambridge, Azim Surani.

Scientists have for making sperm and egg cells used skin cells of a man, because the Y chromosome is necessary for sperm production.

However, experts say that men and women will be able to donate any cells rather than sperm or egg when they visit a fertility clinic, but are hoping that this will open up new fields when it comes to human genetics.

Friday, 2 May 2014

There's a rare disease that causes body tissue to turn to bone

fibrodysplasia ossificans progressiva
The disease, known to doctors as fibrodysplasia ossificans progressiva (FOP), is better known as Stone Man Syndrome. It’s a condition that causes the body’s repair mechanism to malfunction. When tissue (muscle, tendons, ligaments) is damaged, it undergoes ossification for sufferers of this disease.

Early symptoms come in childhood. Misshapen toes, swelling that appears and quickly disappears, and difficult use of joints are red flags. From there, things set about on a downward course. Victims of Stone Man Syndrome continue to grow new bones within their bodies, some of which attach themselves to the original skeleton. Ultimately, the addition of new bone makes it nearly impossible to move.

Fortunately, it’s very rare. Only about one in every 2 million people lives with it. The International Fibrodysplasia Ossificans Progressiva Association is dedicated to informing the public about Stone Man Syndrome. One of the problems with rare diseases is that they are difficult to diagnose, and so people often go without seeking treatment, if anything is available.

Over 500 people with this condition have offered up blood, DNA, and tooth samples. By studying those things, scientists hope to make breakthroughs and change the lives of people who live with FOP for the better.

The disease, known to doctors as fibrodysplasia ossificans progressiva (FOP), is better known as Stone Man Syndrome. It’s a condition that causes the body’s repair mechanism to malfunction. When tissue (muscle, tendons, ligaments) is damaged, it undergoes ossification for sufferers of this disease.
Early symptoms come in childhood. Misshapen toes, swelling that appears and quickly disappears, and difficult use of joints are red flags. From there, things set about on a downward course. Victims of Stone Man Syndrome continue to grow new bones within their bodies, some of which attach themselves to the original skeleton. Ultimately, the addition of new bone makes it nearly impossible to move.
Fortunately, it’s very rare. Only about one in every 2 million people lives with it. The International Fibrodysplasia Ossificans Progressiva Association is dedicated to informing the public about Stone Man Syndrome. One of the problems with rare diseases is that they are difficult to diagnose, and so people often go without seeking treatment, if anything is available.
Over 500 people with this condition have offered up blood, DNA, and tooth samples. By studying those things, scientists hope to make breakthroughs and change the lives of people who live with FOP for the better.

Read more at http://www.omgfacts.com/category/7/Science/2#7jVeihJRBzvsK27X.99

Tuesday, 22 April 2014

Cloning of human cells to new therapies

Scientists are a step closer to creating stem cells that perfectly match the patient's DNA.

Progress is described in the online version of the journal "Cell Stem Cell", this is the first "therapeutic cloning" of human cells.

Technically described as somatic cell nucleus transfer, therapeutic cloning involves producing embryonic cells genetically identical to the donor, usually for the purpose of using the cells in the treatment of disease.

However, the transfer of the core is also the first step in the reproductive cloning or to the production of genetic duplicates of man, a technique that causes controversy since the cloning of Dolly the sheep 1997th.

The United Nations 2005 urged all countries to ban cloning, but South Korea apparently didn't do that. The latest research is funded, one foundation and government of the country.

Other laboratories confirm that this can be a major breakthrough, since in future many illnesses in the future will be heal with stem cells.

Stem cells that perfectly match the patient could be created from the old cells, without the need to create embryos.


Although it sounds possible, it is far from simple: from 39 attempts, scientists have created stem cells only once for each donor.

The study was led by Jang Gi Chang from the Research Institute for Stem Cells in Los Angeles.

In therapeutic cloning, scientists use electricity to connect an adult cell (usually a skin cell) with the egg cell which has had its DNA removed.

The egg for five to six days develops into an embryo in the form of a hollow ball.

The inner cells are "pluripotent", or have the power to become any cell of the human body.

When such an embryo was transplanted into the uterus, it could turn into a clone of the donor DNA.

"Without regulation in this area, such embryos could be used for reproductive cloning of humans, although it would be unsafe and unethical terrible", said Dr. Robert Lanza, a scientist biotech firm Advanced Cell Technology Adaptive Environments de Massachusetts and one of the authors of the new study.
 


The aim is that these embryonic stem cells develop into a beaker and turn into specialized cells for the purpose of treatment of the donor of certain diseases such as Parkinson's, heart disease, multiple sclerosis and type 1 diabetes.

Since the cells are genetically identical donor immune system they would not be rejected.

Despite the fact that scientists working in this field 15 years, before this study only one managed to produce stem cells with this technique and that happened a year ago.

This time they created two healthy embryos, one from each donor age 35 and 75 years.

However, due to the complex techniques and poor success of this procedure, Lanza says that this therapy could obtain only very wealthy people.

Substantial obstacle in the production of stem cells that perfectly match the patient and that very few women want to donate oocytes, since it can be a very painful process.
 

Tuesday, 15 April 2014

UN finally admitted: We are sprayed you and control weather

A few days ago, the United Nations session was devoted to the control of weather, chemtrails, dusting and everything that the governments of the world for years and still do not acknowledge, and telling us about how chemtrails conspiracy is theory that has no evidence.

Then it's really amazing how the UN at its meeting discuss the chemicals that planes emit on all of us.

It is stated that these experiments are work of private companies and world governments. The aim is to claim control and change the weather to protect agriculture and crops due to global warming, which is already well known, big lie on which revolve billions in taxes for carbon dioxide. Now they do not hesitate to say so publicly how planes do change our climate with chemical substances that are released into the air.

It's just not clear who had allowed private companies and world governments to carry out their experiments upon humanity.

For years, people are assured to not see well, as traces in the sky does not exist, how those are regular planes and condensing gases. For years, saying that spraying does not exist, as it is only a conspiracy theory, and worst of all, they managed to fool a many people.

Theory of chemtrails is discredited and so today there are people who, despite all the evidence and confessions continue to talk thats all the conspiracy theories, it's not true .

According to the analysis of rainwater and soil samples chemtrails, among other things , the highest percentage consisting of aluminum oxide , barium salts - dibromoethane , carcinogenic extra fuel and insecticides , fibrous brown stuff , like cobwebs. -Alumina and barium salts are the two most common component in those chemtrails and has absorbed the radioactive matters.

Tuesday, 1 April 2014

Scientists have produced the first "living material"

Researchers at Massachusetts Institute of Technology have made a material with the properties of living and non-living things using the bacterium E.coli.

Their study suggests that in the future be possible materials that will evolve and renew themselves, and will be used by the development of biosensors and solar panels.

Researchers led by Timothy Luoma, assistant professor of electrical and biological engineering have shown that it is possible to connect gold nanoparticles and quantum points in the so-called "living material".

These smart materials will be able to react to the environment, such as living cells, but will also develop complex networks that are necessary for the application.

For example, self-healing materials can help absorbance and conducting electricity in solar cells. These materials also can repair scratches or defects without external intervention.

"Our idea is to combine the world of inanimate and animate and make hybrid materials with functional cells," said Lu.


Controlling bacteria


In order to develop the material , scientists were "getting involved" in "producing biofilm" to force the bacteria that uses nanoparticles and quantum dot.
Biofilm helps bacteria ( such as those that inhabit tartar ) that " sticks " to the surface , and in the case ešerhije quantity , it is about a fiber made ​​of a series of protein subunits CsgA .
For the study , the researchers altered the natural ability of E. coli that produces CsgA and made ​​genetically designed strain that produces CsgA only in certain circumstances , for example , when present molecule AHL .
This has helped scientists to control the production of biofilm formation in bacteria .
In the next part of the study, the researchers designed by E.coli that produces CsgA associated with peptides containing the amino acid histidine .
Production of targeted CsgA was controlled by limiting the amount of other molecules ATC .
When gold nanoparticles are added to a mixture of fiber , histadin was " bought" these particles and creating a network of gold nanoconections. In the future, such a network could be used in advanced computer science and biosensors .
Researchers have even demonstrated that bacteria can evolve and interact with each other to make them " persuaded " to produce CsgA linked to histidine .
" This is a very simple system , but it shows that cells can communicate with each other and changing the composition of the material over time ," says Lu . " We hope that this will succeed in imitating the ways in which natural systems are being developed , such as the bones ."
The study was published in the journal Nature Materials .
 

Friday, 7 February 2014

The stem cells will be tested in space

Researchers at Mayo Clinic are preparing to test the theory that stem cells rapidly proliferate in the absence of gravity. Dr. Aba Zubair sent a group of stem cells on the International Space Station, because he believes that there lies the future of human tissue.

Medical researcher Aba Zubair, was once a dream of becoming an astronaut, but has achieved a satisfactory compromise, because his scientific experiment to be conducted in space.

As a stem cell researcher at the Mayo Clinic, Zubair got three hundred thousand dollars to investigate the behavior of stem cells in space.


Dr. Zubair said that the simulation showed that the stem cells are able to grow faster in zero gravity . He hopes the experiment on the International Space Station and to prove it, and also to find out whether there is some abnormality in the development of :
" When it stimulates the growth of cells, there is a danger of an abnormality , which means that such a cell converted in carcinogen . Another factor that we want to examine is the transformation into malignant cells . "
While one group of cells propagated in space , the other will develop on Earth . In addition to gravity , all the conditions will be the same .
Zubair continues to colleagues examined the effects of gravity on stem cells . If the initial experiments are successful, and weightlessness show appropriate for the growth of stem cells Zubair added , the next challenge will be to transform cells in tissues and organs in the end .
Zubair has already predicted that human bodies could easily grow in space and later , if necessary transplant :
" Imagine , you can have a spare heart , kidney or liver , somewhere in the universe . Only someone on the phone when you need it . So from your stem cells obtain tissue or organ and use it when you need it . "
While this can happen only a few decades , Zubair said that this research could affect the near future . If the cells are rapidly developing in the universe , adds Zubair , doctors would be better able to treat patients on Earth .

Monday, 8 July 2013

Brits test a new way of creating a child with three parents

Britain would allow the controversial technique of creating children using DNA of three people, a move that could help couples make their children do not inherit the rare genetic disease.

New technology will help women with "deficient" mitochondria that the children do not inheret defects that can result in diseases such as muscular dystrophy, epilepsy, heart problems, or mental retardation. One in 200 children are born each year in the UK with mitochondrial disorder.


For women with low mitochondria, scientists would take a healthy genetic material from the egg or emriona. Then he was transferred to the donor egg - an embryo that has healthy mitochondria, but the rest of the core DNA was removed. Thus, the fertilized embryo would be inserted into the womb of the mother.

Some groups opposed to artificial reproduction and believe that the destruction of eggs is immoral.

British tabloids attacked procedure which was first launched in 2008. and described as creating children three parents - mother, father and donors. For the claim that scientists say is incorrect because the amount of DNA from the egg donor insignificant.

"Scientists have developed a new procedure that could stop the transmission of these diseases," said chief medical officer in the UK, Dr Sally Davies.

A similar study done in the United States.

If British MPs agree, Britain could become the first country in the world where such a technique would use for making children. Experts say the procedure is applied to only a dozen women a year.

Tuesday, 9 April 2013

Opposites Attract: How Cells and Cell Fragments Move in Electric Fields


Like tiny, crawling compass needles, whole dwelling cells and also cell fragments orient and move in response to help electric career fields -- playing with opposite information, scientists on the University associated with California, Davis, get. Their effects, published Apr 8 inside journal Latest Biology, could ultimately cause new methods to heal acute wounds and produce stem mobile therapies.

When cells crawl into wounded flesh to be able to heal this, they follow an electric field. In wholesome tissue there's a flux of charged debris between clleular layers. Damage to be able to tissue creates a "short routine, " altering the flux path and creating a power field leading cells in the wound. But just how and 6-pack this transpire? That's not clear.

"We be aware that cells can react to a weak electrical discipline, but we have no idea of how these people sense this, " stated Min Zhao, professor of dermatology and ophthalmology plus a researcher on UC Davis' originate cell centre, the Start for Regenerative Treatments. "If you can understand the process better, you can make hurt healing and tissue regeneration more appropriate. "

The researchers caused cells which form seafood scales, termed keratocytes. These seafood cells may be used to check cell motions, and in addition, they readily drop cell fragments, wrapped within a cell membrane layer but inadequate a nucleus, major organelles, DNA or even much else in the way of other constructions.

In any surprise breakthrough discovery, whole tissues and cell phone fragments relocated in complete opposite directions within the same electric field, stated Alex Mogilner, mentor of math concepts and of neurobiology, physiology and behavior on UC Davis and co-senior author on the paper.

It's the 1st time that like basic cell phone fragments are already shown to be able to orient and move around in an electric field, Mogilner stated. That authorized the researchers to find that your cells and cell fragments are oriented by the "tug of war" in between two fighting processes.

Imagine a cell as a blob of fluid and protein teeth whitening gel wrapped within a membrane. Cells crawl along areas by sliding off the road and ratcheting health proteins fibers into the cell past the other person, advancing the class leading edge on the cell whilst withdrawing your trailing advantage.

Assistant challenge scientist Yaohui Sunshine found anytime whole tissues were subjected to an electric field, actin health proteins fibers compiled and grew on the side of your cell experiencing the unfavorable electrode (cathode), while combining contracting actin and myosin fibers formed to the constructive electrode (anode). Equally actin on it's own, and actin using myosin, can cause motors which drive your cell ahead.

The polarizing effect setup a tug-of-war between two mechanisms. In whole cells, your actin procedure won, as well as the cell crawled toward your cathode. In cell fragments, the actin/myosin motor arrived on major, got the trunk of your cell oriented toward your cathode, as well as the cell fragment crawled within the opposite path.

The results show there are at minimum two different pathways where cells react to electric job areas, Mogilner stated. At least one of the pathways -- resulting in organized actin/myosin fibers -- can function without any cell nucleus or one of the other organelles within cells, beyond your cell membrane layer and proteins comprise the cytoskeleton.

Upstream of the two path ways is some type of sensor which detects your electric discipline. In a separate paper to become published within the same journal issue, Mogilner and Stanford University or college researchers Greg Allen and Julie Theriot narrow down your possible mechanisms. The most likely explanation, these people conclude, is the electric discipline causes specific electrically incurred proteins within the cell membrane layer to concentrate for the membrane advantage, triggering a reply.

Wednesday, 3 April 2013

New Vaccine-Design Approach Targets Viruses Such as HIV

A team directed by scientists from the Scripps Investigation Institute (TSRI) plus the International PRODUCTS Vaccine Effort (IAVI) has unveiled a fresh technique with regard to vaccine design that is certainly particularly beneficial against HIV along with other fast-changing worms.

The particular report, which in turn appears Drive 28, 2013, throughout Science Show, the earlier online edition from the journal Research, offers a step when it comes to solving what continues to be one of several central problems of current vaccine pattern: how to stimulate the body's defence mechanism to produce the right antibody a reaction to protect against a wide range of viral strains. The research workers demonstrated their own new method by design an immunogen (substance that induces immunity) containing promise to reliably trigger an otherwise rare reply effective against various kinds of HIV.

"We're hoping to find out this immunogen quickly in mice engineered to produce human antibodies, and in the end in individuals, " said team head William R. Schief, who's going to be an affiliate professor connected with immunology and person in the IAVI Neutralizing Antibody Centre at TSRI.

Seeking a way

For highly variable viruses including HIV as well as influenza, vaccine researchers want to elicit antibodies that drive back most as well as all viral strains -- not just a few strains, as in season flu vaccines currently out there. Vaccine research workers have identified several of these broadly neutralizing antibodies by long-term HIV-positive survivors, harvesting antibody-producing M cells by blood samples after which it sifting through them to identify people who produce antibodies competent at neutralizing a number of strains connected with HIV. Such largely neutralizing antibodies typically work through blocking critical functional sites using a virus which are conserved amid different strains despite high mutation anywhere else.

However, even with these effective broadly neutralizing antibodies on hand, scientists need to get a way to elicit their own production chemistry through a vaccine. "For case, to bring about broadly neutralizing antibodies called VRC01-class antibodies that neutralize three months percent connected with known HIV strains, you could try using the HIV envelope protein because your immunogen, " said Schief, "but you face the problem the envelope healthy proteins doesn't bind with almost any detectable affinity on the B cells was required to launch a broadly neutralizing antibody reply. "

To be able to reliably trigger that VRC01-class antibody reply, Schief as well as his fellow workers therefore sought to develop a new way for designing vaccine immunogens.

Coming from Weak to Strong

Frederick Jardine, a TSRI graduate student inside the Schief laboratory, evaluated the genes connected with VRC01-producing M cells to be able to deduce the identities from the less older B tissues -- known as germline M cells -- from which they originate. Germline M cells usually are major finds of current viral vaccines, because it's the initial stimulation of those B tissues and their own antibodies leading to a long-term antibody reply.

In a reaction to vaccination, germline M cells may, in theory, mature into your desired VRC01-producing M cells -- nevertheless natural HIV proteins fail to bind as well as stimulate these types of germline M cells so that they cannot have the process started off. The staff thus set out to design a artificial immunogen that has to be successful at achieving that.

Jardine used a healthy proteins modeling software package suite called Rosetta to enhance the binding of VRC01 germline M cell antibodies to HIV's envelope protein. "We enquired Rosetta to take into consideration mutations quietly of the HIV envelope protein that may help that bind tightly to the germline antibodies, " he said.

Rosetta identified a large number of mutations which may help enhance binding to germline antibodies. Jardine after that generated libraries that contained all feasible combinations connected with beneficial mutations, contributing to millions connected with mutants, as well as screened them using strategies called abolish surface show and FACS. This mix off computational prediction and guided evolution properly produced some mutant envelope proteins together with high affinity for germline VRC01-class antibodies.

Jardine then centered on making a minimal immunogen -- a lot smaller when compared with HIV envelope -- and for that reason continued development while using "engineered exterior domain (eOD)" previously manufactured by Po-Ssu Huang inside the Schief laboratory while Schief was at the University connected with Washington. Several iterative models of pattern and selection having a panel connected with germline antibodies produced a last, optimized immunogen -- a construct they will called eOD-GT6.

Any Closer Look

To have a better take a look at eOD-GT6 and its interaction together with germline antibodies, the team turned to the laboratory of Ian Any. Wilson, chair from the Department connected with Integrative Structural as well as Computational Biology and also a member from the IAVI Neutralizing Antibody Centre at TSRI.

Jean-Philippe Julien, a senior research associate inside the Wilson laboratory, determined the 3D atomic structure from the designed immunogen using X-ray crystallography -- as well as, in a silly feat, also motivated the very structure of an germline VRC01 antibody, as well the structure from the immunogen as well as antibody bound together.

"We wanted to know regardless of whether eOD-GT6 looked the way we awaited and regardless of whether it bound on the antibody in how that many of us predicted -- as well as in both equally cases the solution was 'yes', " said Julien. "We also could actually identify the true secret mutations that conferred it is reactivity together with germline VRC01 antibodies. "

Mimicking a Virus

Vaccine researchers be aware that such a immunogen typically does greater at rousing an antibody response if it is presented not as a solitary copy however in a directly spaced cluster of a number of copies, and with only it is antibody-binding conclusion exposed. "We required it to look like a virus, " said Sergey Menis, a traveling to graduate student inside the Schief laboratory.

Menis therefore devised a smaller virus-mimicking particle created from 60 copies of an obscure bacterial enzyme as well as coated that with 60 copies connected with eOD-GT6. The particle labored well at activating VRC01 germline M cells and also mature M cells inside the lab recipe, whereas single-copy eOD-GT6 failed to.

"Essentially it's a self-assembling nanoparticle that presents the immunogen in the properly focused way, " Menis said. "We're hoping this approach can be employed not exclusively for an HIV vaccine but also for many various other vaccines, way too. "

The next thing for the eOD-GT6 immunogen venture, said Schief, is to test its chance to stimulate a antibody reply in laboratory animals which are themselves engineered to produce human germline antibodies. The actual with screening immunogens that target human germline antibodies is actually that creatures typically used by vaccine screening cannot help make those exact same antibodies. Therefore the team is actually collaborating together with other researchers who're engineering mice to produce human germline antibodies. After that, he hopes to discover ways to drive the response, from the activation from the germline M cells all the way up to the production connected with mature, largely neutralizing VRC01-class antibodies, using a number of designed immunogens.

Schief in addition hopes they can test their own germline-targeting approach in humans eventually, noting "it are going to be really important to determine if that works in the human currently being. "

The 1st authors from the paper, "Rational HIV immunogen design to focus on specific germline M cell receptors, " were Jardine, Julien as well as Menis. Co-authors ended up Takayuki Ota as well as Devin Sok from the Nemazee as well as Burton laboratories at TSRI, respectively; Travis Nieusma from the Ward laboratory at TSRI; John Mathison from the Ulevitch laboratory at TSRI; Oleksandr Kalyuzhniy as well as Skye MacPherson, researchers inside the Schief laboratory from IAVI as well as TSRI, respectively; Po-Ssu Huang as well as David Baker from the University connected with Washington, Seattle; Andrew McGuire as well as Leonidas Stamatatos from the Seattle Biomedical Analysis Institute; as well as TSRI major investigators Tim B. Infirmary, David Nemazee, Ian Any. Wilson, as well as Dennis R. Burton, who's going to be also head from the IAVI Neutralizing Centre at TSRI.

Monday, 1 April 2013

Study unravels genetic jigsaw of hormone cancers

Brand new cancer treatments and better strategies to cancer screening could emerge from the huge new international study which includes revealed more in the genetic underpinnings connected with breast, prostate and also ovarian cancers.

Scientists within the Collaborative Oncological Gene-environment Analyze (COGS) have identified more than 70 new genetic regions connected with the three varieties of hormone-related cancers.

The findings, published with 13 papers, roughly double how many genetic regions which scientists know for being associated with most of these cancers, which together affect more than 2. 5 million people every year.

Crucially, many of your genes identified within the study appear to affect several type of cancer. This means it can be possible to develop treatments that may combat several unique cancers, says cancer geneticist John Witte from your University of Los angeles, San Francisco.

"While the current findings will not immediately change your clinical treatment for such cancers, they do get us nearer to this ultimate aim, " says Witte, who wrote a commentary around the results this week within the journal Nature Inherited genes.

"Now we have a very large number connected with genetic variants clearly regarding risk of cancer, and a variety of these impact several cancer. These findings may help clarify the many optimal screening, biology, and treatment regarding different cancers. "
Genetic overlap

The COGS researchers began by analysing data from numerous earlier 'genome-wide relationship studies' that received linked particular anatomical variations with cancer risk in 1000s of patients.

They after that used 211, 000 of the people promising genetic markers to style a custom genotyping array - one tool for identifying your presence of distinct genetic sequences : and used it to try samples from more than 200, 000 cancer patients and settings.

The findings consist of 49 new anatomical susceptibility regions regarding breast cancer, 26 for prostate cancer and eight regarding ovarian cancer. The effects also include susceptibility genes to the cancers in particular populations, such as individuals with BRCA1 or BRCA2 mutations.

The exact functions of the majority of the genes identified remains for being uncovered, but already a few important trends have got emerged that could lead to improved treatments.

Among the most notable findings had been the genetic overlap involving cancers. Such overlaps point directly for the mechanisms that start the cancer-forming process in these about three hormone-related cancers.

"This is just about the most exciting tasks of this work, " says Witte. If those mechanisms are generally shared among cancer, treatments for one cancer may also prove successful regarding other cancers at the same time.

"Instead of categorising cancer as distinct conditions, we may have got great research and also treatment success with studying the resemblances across cancers, " he says.

Medical professional Georgia Chevenix-Trench, from your Queensland Institute connected with Medical Research, concurs.

"It's important to make note of that any one of these simple regions could be a new drug target that is certainly effective for possibly prevention or treatment of these common cancers, " says Chevenix-Trench, one of several Australian researchers involved in the project.

And the findings are simply just the tip in the iceberg, she states that.

"In breast cancer, for example there's good evidence that there may be up to 10, 000 loci which confer risk that the study wasn't statistically powerful enough to review. "
Screening advancements

The results may also be helpful the fight next to cancer by strengthening screening, say the analysis authors

Researchers were working on ways to stratify the cancer risk of people based on learned genetic variants. Such tests might first double in those who are already at dangerous of disease, such as women for example who have BRCA1 or BRCA2 mutations. In many years to come they could double more widely.

"It's always tricky to guess timelines but I would think that in five to 10 years it is being used generally, " says Medical professional Paul Pharoah, lead author of one of many ovarian cancer studies from your University of Cambridge.

Monday, 28 January 2013

Medical Innovations for 2013

Technologies for the diagnosis of bacterial diseases, scan that reveals skin cancer or apparatus incorporating a migraine, some of the innovations in medicine that are anticipated for 2013. 

Cleveland Clinic in Ohio at the end of each year to assess the real innovation will mark the health care next year. How Claire O'Connell from "Irish Times' learns, among the most important advances will increase the percentage of successful transplantation of lungs.

Chris Coburn, executive director of Cleveland Clinic Innovations (CCI), which has so far collected more than $ 650 million on net level, has provided insight into innovation.


Digital breast tomosinteza (DBT) - This type of "3D mammography" may be practiced with the current mammogram in order to get more detailed cancer. During mamografisanja, X-ray passes quickly in an arc around the breast, recording thousands of images from thousands of angles that can be later assembled into a three dimensional image of the breast.
This approach makes it possible to notice small cancerous lumps that are hidden in the surrounding tissues. "It's nice to see on this list technology that directly affects the health care of women," said Coburn.


Modular device for the treatment of complex aneurysms - abnormal aortic aneurysm and weak abdominal aortic wall can be disastrous if a break occurs. Large and letting aneurysms can be used to treat the minimum stent implantation, but many patients have anatomy that is not suitable for it.
The new concept offers a modular stent that can be easily adapted patient would not fit him. "This modular design makes it more challenging parts of the anatomy, such as aneurysm arising at the junction of the aorta and adjacent arteries," says Coburn. "It allows the adjustment of this important procedure the patient's needs."
"Cleaning" for lung transplantation - This technology allows to increase the number of lungs available for transplant by "washing" the removed lung donors in order to eliminate defects and improve the quality of organs.
Donor lungs are placed in a transparent chamber that looks like a balloon and connected to an artificial blood pump and fan systems.
The body is then subjected to special fluids and oxygen, and in some cases prescription medications. When it is estimated that lung viable and able to survive in the body, they are ready for transplanting
"It offers the opportunity to increase the number of candidates for the donation," said Coburn. "If fully implemented, this method could increase the availability of lungs for transplantation to 40%."
Laser surgery is a lens that femtoseconds - Cataract is the leading disease that causes vision impairment and blindness, but surgery can remove damaged tissue and to implant new intra-ocular lens.
Femtosekundski (one millionth of a billionth of a second) lasers allow the cataract procedure without the use of a scalpel and without making cuts, so you can make a circular hole in the lens capsule, the lens splits into sections and then soften and degrade cataracts.
"This is a very fast, very accurate, and, excuse the words game, cutting-edge technology," tells Coburn. "The concept of the reliability and speed with which you can treat a large number of patients."
Handheld device to detect melanoma - Melanoma is increasing in many parts of the world, and early diagnosis is essential in order to eliminate malignant cells in time. Innovation is a device that is held in the hand and a dermatologist can use in your practice.
Device emits several wavelengths of light through which can be seen small blood vessels beneath the mole or injury, so you do not have to be a real cut in the skin. This is the way that patient access specialists without a biopsy and the potential fear and worry that it may cause.
"The advantage of this technology is that it is affordable and easy to use," said Coburn.
Medicines for prostate cancer at an advanced stage - the last few years a number of drugs approved in the U.S. for the treatment of prostate cancer were gone, but we expect further development of these types of drugs.
"It is of great importance to improve the treatment of prostate cancer and is still working to come up with positive results," said Coburn.
Mass spectrometry for identification of bacteria - When a patient has a serious bacterial infection, rapid diagnosis and obtain appropriate drugs means a lot. Advances in mass spectrometry allows to identify bacteria in a sample taken from a patient in a matter of minutes, rather than days as it used to be the case.
"There is a great enthusiasm in the community of pathologists and this invention will enable a rapid turnaround in the treatment of patients," said Coburn.
Neuro-modulator migraine - migraine and severe headache caused great depression and loss of productivity. Innovation that would solve this problem is to install a miniature stimulator which, on command, the ganglia stimulated nerve cells that are located behind the face. If one is appointed to sit on the patient's head, the patient could be activated when the migraine becomes ravaged.
"The procedure for placing this device takes about 45 minutes or less, so it can be accessed over the right and ends at the end of the lip. Has no reason to fear," said Coburn. "It really is an elegant technology and early results are astounding."
Bariatric surgery to control diabetes - Type 2 diabetes is a serious health problem and the risk of developing the chronic disease has increased
obesity. Resent studies show that bariatric surgery - which changes the digestive system to reduce energy intake - can play an important role in control of type 2 diabetes
"It is clear that bariatric surgery itself is not new, but have occurred in the technology associated with it," says Coburn. "However, demonstrating how it can reverse the progress of type 2 diabetes is revolutionary for our list."
 

Saturday, 22 December 2012

Scientists find immortality gene

Tiny freshwater polyp Hydra has long caused the interest of scientists. This animal is practically immortal and shows no signs of aging.

German researchers decided to find the genetic basis of the immortality of hydra, with amazement and declared that the secret kept in FOXO gene. It is well known, since it has all the animals and man.

It turns out that this gene supports stem cells in the active force, which causes permanent tissue regeneration.

Scientists now estimate that at least will identify factors that affect the operation of FOXO genes, such as ecology, child or lifestyle.

Thursday, 20 December 2012

Russian scientists have discovered a new phenomenon in nature

Russian scientists have discovered a natural phenomenon, which promises to be revolutionary. It turned out that medicinal substances can be effective in small doses. The point is that substances dissolved in water lose their properties in proportion to the amount of water in which are dissolved. Six years of research was needed to Russian scientists to prove that in this classical way like only 25% of the solution. Because the other 75% behaves atypically, their properties vary unexpectedly. This discovery promises visible changes in medicine and pharmacology. At low concentrations of substances, side effects of medication will be kept to a minimum.

Thursday, 22 November 2012

Scientists read minds patients with brain dysfunction

Scientists from the University of Western Ontario's claim to distinguish brain signals the patient, who for ten years in a state of vegetation.

Scientists constantly monitor the behavior of the blood vessels of the brain 39-year old Scott Rautlija. Having studied the specific parts of the brain response to some questions posed to healthy people, neurologists were asked the same questions that the patient, at the same time keeping track of blood vessels.

The result, according to scientists, surpassed all expectations, because they are clearly caught the answers yes and no. For example, 39-year old Canadian, who sustained serious head injuries in a car accident, said experts not to feel pain.

Neuroscientists believe that the new method of "dialogue" with such help many patients who have a similar diagnosis to communicate their thoughts and feelings.

Thursday, 4 October 2012

The cure for cancer has become the elixir of youth

British scientists have discovered a protein responsible for the decrease in muscle tone during aging. As today by the newspaper "Daily Express", experts have determined that a cure for cancer, which is currently in the experimental stage, preventing muscle atrophy due to aging. "This discovery gives us the opportunity to create a cure for muscle regeneration system of man," - said the scientist.

Wednesday, 26 September 2012

"Junk DNA" is useful for the detection of disease

It turned out that the "junk DNA", which scientists have long thought that there is a function, plays an important role in the development of complex diseases such as diabetes, Crohn's disease, multiple sclerosis, lupus and cancer.

This discovery, the largest in molecular biology over the last ten years, it could cause a number of new therapies and drugs. The study, which lasted nine years, involved 440 scientists from 32 laboratories in the UK, U.S., Spain, Singapore and Japan.

The obtained very important clues to follow that science has discovered the key mechanisms that play a role in health and disease. This should be explored in order to be made ​​whole new medications or changed is existing.

The term "junk DNA" must now be discarded. From this research it is clear that this is part of the gene which is biologically more active than expected.

This term, the "non-coding DNA", scientists have figured out 40 years ago to describe the part of genetics that do not contain genes.

When in 1989. under the leadership of Nobel laureate James Watson began three billion-dollar project "Human gene", most scientists believed that the "junk DNA" has an important biological role.

Read of the human genetic code in 2000. years, and three years later published a complete map of the human genome.

Having completed the human genome project secessionist became clear that genes carry information for protein synthesis has about 20,000, which makes it one of only two percent of human DNA.

To be studied function of the remaining 98 percent of human DNA, which is believed to play an important role in the regulation of gene activity, which began in 2003. The program "ENCODE" in order to try to find the "non-coding part of genes", ie. "junk DNA."