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Weizmann Institute of Science
PO Box 26
[t] +972 8 934 2111
[f] +972 8 934 4107
The Weizmann Institute of Science, located in Rehovot, Israel, is one of the top-ranking multidisciplinary research institutions in the world. Noted for its wide-ranging exploration of the sciences and technology, the Institute gathers together 2,500 scientists, technicians and research students.
Successful transplantation from pig embryos to mice
07 March, 2007
Millions of diabetics face a lifetime of daily injections to replace the insulin their bodies fail to produce, as well as a host of risks that includes blindness, amputation, kidney failure and heart disease. For many, particularly those inflicted with juvenile diabetes, transplants of the pancreatic tissue in which insulin is produced might alleviate these problems. Unfortunately, there are not nearly enough organ donors available for transplantation.
Bones hold the key to blood renewal
04 March, 2007
Though we think of them as solid and permanent, our bones are actually constantly being rebuilt throughout our lives. A team of scientists at the Weizmann Institute of Science has now revealed how cells that work at remodeling the bones play a direct part in the ongoing renewal of another system, the blood. Their findings, which may lead to future improvements in bone marrow transplantation and a better understanding of diseases involving bone or blood renewal, were published in the Nature Medicine.
The molecular mechanism of a diabetes vaccine revealed
03 March, 2007
A team of researchers led by Prof. Irun Cohen of the Weizmann Institute of Science Immunology Department has revealed the molecular mechanism of a vaccine for Type 1 diabetes. The new findings should help amplify the effectiveness of the vaccine, which is currently in advanced stages of clinical trials.
Tiny airborne particles are a major cause of climate change
02 March, 2007
The local effect of atmospheric aerosols can be greater than the greenhouse effect. A scientist at the Weizmann Institute of Science and his colleagues caused a storm in the atmospheric community when they suggested a few years back that tiny air-borne particles, known as aerosols, may be one of the main culprits causing climate change, having, on a local scale, an even greater impact than the greenhouse gases effect.
Bacteria beat the heat
01 March, 2007
How do some microorganisms manage to exist and even thrive in surroundings ranging from Antarctica to boiling hot springs? A team of scientists from the Weizmann Institute
Stars may lead fascinating lives but sometimes, it
28 February, 2007
Stars may lead fascinating lives but sometimes, it
Weizmann Institute scientists render a disease-causing pathogen harmless
27 February, 2007
Freedom of expression is great, but silence is golden, at least when it comes to amoebae, intestine-dwelling parasites that cause life-threatening dysentery in many parts of the world. Three years ago, scientists at the Weizmann Institute accidentally discovered a way to silence the expression of a key amoebic gene, one which codes for a toxic protein that kills human intestinal cells infected with this devastating illness.
A better water test
26 February, 2007
Water is essential for life. Nevertheless, even small amounts of water in the wrong places, fuels, lubricants, or organic solvents, can cause motors to sputter, metal parts to rust, or chemical reactions to go awry. That
Cervical cancer treatment depends on patient age
13 August, 2006
Elderly women with cervical cancer face double jeopardy. Not only does their advanced age decrease chances of survival, it also decreases the likelihood that they'll be given the most aggressive treatments for their disease, according to a study by researchers at Washington University School of Medicine in St. Louis.
Genomic analysis to become tool for studying trauma patients
10 August, 2006
Genomic analysis may one day be a primary diagnostic tool for physicians deciding on a course of treatment for trauma and other critically ill patients in the intensive care unit, according to a new study by a national collaboration of more than 70 physicians and scientists.
Weizmann Institute scientists develop new approach for directing treatment to metastasized prostate cancer
02 July, 2006
When prostate cancer, one of the leading causes of cancer death among men, spreads in the body, it most often goes to the bone where it is particularly difficult to treat. Metastasis to the bone is implicated in over 70% of prostate cancer deaths. Prof. Zelig Eshhar, Head of the Immunology Department at the Weizmann Institute of Science, has now shown how a treatment that works on cancer in the prostate can be redirected to the bones.
Scientists at the Weizmann Institute use DNA to assemble nanosized electronic parts
02 July, 2006
Take a little DNA; add a pinch of carbon nanotubes; sprinkle in a few grains of gold, all on a clean silicon surface, and whip up a batch of nanotransistors, that's pretty much what the research group of Prof. Ron Naaman of the Chemical Physics Department of the Weizmann Institute did. Only, they began with even more basic ingredients: tiny spoonfuls of phosphates, sugars and nucleotides that were used to create unique strands of DNA programmed to form attachments with carbon nanotubes.
Weizmann Institute Scientists find: Optimal time windows for successful embryonic tissue transplant
01 July, 2006
Scientists at the Weizmann Institute of Science have determined distinct gestational time windows for the growth of transplanted pig embryonic liver, pancreas and lung precursor tissue into functioning organs in mice. These findings, appearing this week in PNAS online Early Edition, could help enhance the chances for successful implementation of embryonic pig tissue in the treatment of a wide spectrum of human diseases.
Scientists has shown one way that evolving organisms beat evolutionary stakes
01 July, 2006
Evolution is something of a gamble: in order to stay a step ahead of a shifting environment, organisms must change or risk extinction. Yet the instrument of this change, mutation, carries a serious threat: mutations are hundreds of times more likely to be harmful to the organism than advantageous. Now, in a paper published online Nov. 28 in Nature Genetics, a team of scientists at the Weizmann Institute of Science has shown one way that evolving organisms may be hedging their bets.
Weizmann Institute Scientists discover how substitutions are made for injured genes
30 June, 2006
If there were no bench for second-string players on a football team, who would substitute for tired or injured team members? A team of Weizmann Institute scientists has found that, if the team were made up of genes, they might pull athletes who can play a little football in a pinch from nearby basketball or rugby teams. Their findings were published in the March issue of Nature Genetics.
Nanotubes form aalong atomic steps
30 June, 2006
The Weizmann Institute of Science today announced that a research group headed by Dr. Ernesto Joselevich has developed a new approach to create patterns of carbon nanotubes by formation along atomic steps on sapphire surfaces. Carbon nanotubes are excellent candidates for the production of nanoelectronic circuits, but their assembly into ordered arrays remains a major obstacle toward this application.
Molecular messengers perform crucial role in nerve cell repair
29 June, 2006
Long distance messengers star in many heroic tales, perhaps the most famous being the one about the runner who carried the news about the victory of the Greeks over the Persians in the fateful battle of Marathon. A team of researchers at the Weizmann Institute of Science has now discovered how molecular messengers perform a crucial role in the ability of injured nerve cells to heal themselves.
A team of scientists at the Weizmann Institute of Science has shown how sea urchins grow new spines
29 June, 2006
The sea urchin's tough, brittle spines are an engineering wonder. Composed of a single crystal from base to needle-sharp tip, they grow back within a few days after being broken off. Now, a team of scientists at the Weizmann Institute of Science has shown how they do it.
New kind of electrical switch formed from organic molecules could be used in future
28 June, 2006
Researchers at the Weizmann Institute of Science have demonstrated a new kind of electrical switch, formed of organic molecules, that could be used in the future in nanoscale electronic components.
New study gives scientists insight into how the DNA code is turned into instructions for protein construction
28 June, 2006
A team of scientists from the Weizmann Institute of Science and the Hebrew University of Jerusalem has revealed the structure of a cellular editor that 'cuts and pastes' the first draft of RNA straight after it is formed from its DNA template. Many diseases appear to be tied to mistakes in this process, and understanding the workings of the machinery involved may lead to the ability to correct or prevent them in the future.
Weizmann Institute Scientists weaponize an antibody to deliver continuous attacks on cancer cells
27 June, 2006
In a recent study published in Molecular Cancer Therapeutics, researchers at the Weizmann Institute of Science paired the active ingredient of a garden remedy with advanced bio-technology to deliver a powerful punch against cancer. The cancer killing effectiveness lies in their technique of arming a cancer-targeting antibody with the destructive potential of the dietary molecule otherwise known as 'allicin.'
Weizmann Institute scientist's vision: Microscopic computers will function inside living tissues
27 June, 2006
The world's smallest computer (around a trillion can fit in a drop of water) might one day go on record again as the tiniest medical kit. Made entirely of biological molecules, this computer was successfully programmed to identify, in a test tube, changes in the balance of molecules in the body that indicate the presence of certain cancers, to diagnose the type of cancer, and to react by producing a drug molecule to fight the cancer cells.
New invention allows scientists to view intact biological samples under the electron microscope
26 June, 2006
The scanning electron microscope has been a basic research tool for fifty years, and for those fifty years, scientists have been looking for better ways to observe biological samples under its beam. The problem is that the viewing chamber of the SEM must contain a vacuum (in which liquid water in tissues 'boils' away).
Weizmann Institute scientists develop a method for analysing crack progression
25 June, 2006
Could engineers have known ahead of time exactly how much pressure the levees protecting New Orleans could withstand before giving way? Is it possible to predict when and under what conditions material wear and tear will become critical, causing planes to crash or bridges to collapse? A study by Weizmann Institute scientists takes a new and original approach to the study of how materials fracture and split apart.
Three different types of code come into play when rats sense with their whiskers
25 June, 2006
Is there a universal neural code, similar to the genetic code, in which the complexity of sense and experience can be reduced to a few simple rules? According to Prof. Ehud Ahissar of the Weizmann Institute's Neurobiology Department, the answer might be no. He and his team have been studying how rats use their whiskers to sense their environment, and have found that the seemingly simple act of feeling out a 3-D object requires three different types of code.
A new particle detector built at the Weizmann Institute of Science will help probe the primordial universe
25 June, 2006
When the first matter came into being right after the big bang, what was it like? It may not have been quite as scientists have been describing it. That's one of the possibilities raised by four international teams of researchers that are about to publish important results three years into an experiment to recreate the primordial matter of the universe. Weizmann Institute scientists are among those who participated in the creation of matter that may be the 'quark-gluon plasma' thought to be the first matter in the universe.
With a new method scientists can identify novel protein molecules in days rather than months
24 June, 2006
A team of scientists at the Weizmann Institute of Science and the Hebrew University of Jerusalem has developed a method that could speed up the process of identifying novel protein molecules for medical or biological research hundreds of times over.
A newly discovered source of DNA in fossil bones holds promise for unearthing the past
24 June, 2006
Scientists at the Weizmann Institute of Science recently discovered a new source of well-preserved ancient DNA in fossil bones. Their findings were published in the Proceedings of the National Academy of Sciences.
Scientists reveals how fruit fly embryos impose order in early development
24 June, 2006
Soon after fertilization, the cells in an embryo, which have been dividing furiously from the start, begin to take on different forms and to separate into layers that will eventually give rise to the organism's various tissues and organs. But dividing and changing shape, two distinct processes, cannot happen simultaneously. Directing activities so each takes place in turn becomes critical when the pressure is on to do both. A team of Weizmann Institute scientists recently found how a cellular 'traffic cop' temporarily halts cell division so other processes can proceed.
Weizmann Institute scientists create method for predicting chemotherapy success
23 June, 2006
Chemotherapy drugs, given intravenously, are the mainstay of the fight against cancer. But doctors know that sometimes these drugs effect a complete cure, while other times they can be nearly ineffective. How to turn some of those failures into successes?
New findings that may have implications in delaying and slowing down cognitive deterioration in old age
23 June, 2006
A team of scientists at the Weizmann Institute of Science, led by Prof. Michal Schwartz of the Neurobiology Department, has come up with new findings that may have implications in delaying and slowing down cognitive deterioration in old age. The basis for these developments is Schwartz's team's observations, published today in the February issue of Nature Neuroscience, that immune cells contribute to maintaining the brain's ability to maintain cognitive ability and cell renewal throughout life.
Scientists has shown exactly why a new drug has sometimes serious side effects
23 June, 2006
A team of scientists at the Weizmann Institute of Science, working in collaboration with scientists at St. Jude's Children's Research Hospital in Memphis, Tennessee, has shown exactly why a new drug that's been proven effective against colon cancer has sometimes serious side effects. Their hope is that these findings will allow the drug's design to be improved so as to lower the incidence of these side effects.
Weizmann Institute scientists discover a molecular security mechanism for keeping mutations in check
22 June, 2006
Everyone knows mutations, genetic mistakes in DNA, the material of heredity, are bad: The more mutations in the cell's DNA, the higher the risk of cancer developing. But in the last few years it has become clear that the very processes that generate mutations, if they take place at a relatively low frequency, can actually protect us from cancer.
A multidisciplinary team develops an analytical method to trace lineage trees of cells
22 June, 2006
Some fundamental outstanding questions in science: 'Where do stem cells originate?' 'How does cancer develop?' 'When do cell types split off from each other in the embryo? 'might be answered if scientists had a way to map the history of the body's cells going back to the fertilized egg. Now, a multidisciplinary team at the Weizmann Institute of Science has developed an analytical method that can trace the lineage trees of cells.
Researchers find new method for mapping gene expression in MRI
22 June, 2006
New findings show an iron storage molecule in the cell can serve as an advanced tool for mapping gene expression. Future gene therapy may use a technique in which non-invasive magnetic resonance imaging is used to track this molecule. The results of this research, conducted by Prof. Michal Neeman of the Weizmann Institute's Biological Regulation Department, were published in the research journal Neoplasia.
A team of scientists at the Weizmann Institute of Science has identified some basic principles of communication
21 June, 2006
How do we succeed in putting our ideas into words, so that another person can understand them? This complex undertaking involves translating an idea into a one-dimensional sequence, a string of words to be read or spoken one after the other. Of course the person on the receiving end might not get the intended point: The effective expression of one's ideas is considered an art, or at least a desirable and important skill.
Solar Energy Project at the Weizmann Institute promises to advance the use of hydrogen fuel
21 June, 2006
Innovative solar technology that may offer a 'green' solution to the production of hydrogen fuel has been successfully tested on a large scale at the Weizmann Institute of Science in Israel. The technology also promises to facilitate the storage and transportation of hydrogen. The chemical process behind the technology was originally developed at Weizmann, and it has been scaled up in collaboration with European scientists.
A Weizmann Institute study finds that signals travel from rat's whiskers to its brain along 3 separate pathways
21 June, 2006
Like blind peoples' fingers, rats use their whiskers to engage in active sensing, a combination of movement and touch, when trying to figure out the location and identity of a certain object. But how the brain decodes the signals it receives from the whiskers is unclear.
Routine uterine biopsies turned up a surprising result that could open up new pathways in fertility research
20 June, 2006
Louis Pasteur said that 'chance favors the prepared mind.' For Prof. Nava Dekel of the Weizmann Institute's Biological Regulation Department, some completely unexpected results of biopsies performed on women with fertility problems have led to a new path of scientific discovery that may hold hope for women trying to conceive.
Organic Chemistry Scientists catch a glimpse of platinum-based complexes
20 June, 2006
Do metal complexes casually stroll around certain molecules prior to chemical reactions? Scientists in the Organic Chemistry Department of the Weizmann Institute of Science have caught a glimpse of platinum-based complexes 'walking' a path to their destinations.
Scientists at Weizmann Institute of Science & in Sweden discover how excess body fat can lead diabetes
20 June, 2006
One out of 12 people in the western world suffers from type 2 (adult onset) diabetes. Worldwide, 150 million people are diabetic and their numbers are expected to double in the next 20 years, a result of the growing obesity epidemic. Yet, the reasons for the strong correlation between excess body fat and diabetes have been puzzling researchers.
A Weizmann Institute scientist reveals how a mountain may have moved
19 June, 2006
'Moving mountains' has come to mean doing the impossible. Yet at least once in the past, one mountain relocated a fair distance away. This feat took place around 50 million years ago, in the area of the present-day border between Montana and Wyoming.
Weizmann Institute Scientists discover how an HIV protein fragment shuts down an immune response
19 June, 2006
The HIV virus hides out in the very immune system cells that are meant to protect the body from viral infection. But how does it prevent these cells from mounting a full-scale attack against the invader? In research published today in the Journal of Clinical Investigation, a team at the Weizmann Institute of Science has shown how a part of a protein on the virus' outer surface interferes with the cells' normal immune response.
Scientists link algae salt tolerance to human kidney function
19 June, 2006
Life thrives in all sorts of hostile environments, including the extreme salinity of the Dead Sea. A team of scientists at the Weizmann Institute of Science has uncovered a strategy that helps a plant-like, microscopic alga to happily proliferate in such inhospitable surroundings, and their findings have unexpectedly shed light on the working of our own kidneys.
Switching to chemistry
21 April, 2005
Researchers at the Weizmann Institute of Science have demonstrated a new kind of electrical switch, formed of organic molecules, that could be used in the future in nanoscale electronic components.
Weizmann Institute Scientists reveal the shape of a protein that helps retroviruses break into cells
13 April, 2005
Retroviruses are among the trickier and more malicious disease agents, causing AIDS and cancers such as leukemia. The viruses manage to sneak into cells with the help of special protein assemblies scattered all over their surfaces. These retrovirus surface proteins cause the membrane envelope of the virus to fuse with the membrane of the cell, spilling virus RNA into the cell to wreak damage.
Nanotubes form along atmoic steps
21 December, 2004
The Weizmann Institute of Science has announced that a research group headed by Dr Ernesto Joselevich has developed a new approach to create patterns of carbon nanotubes by formation along atomic steps on sapphire surfaces.
Hidden aspects of kidney function are revealed in a new kind of MRI scan used at Weizmann Institute of Science
15 April, 2004
Kidney disease may affect as many as one in twelve people, and causes millions of deaths each year. Currently, the diagnosis of kidney function relies mainly on blood and urine tests, an indirect means of figuring out how well they're working.
New type of Nanotube made of gold or silver created at the Weizmann Institute
26 January, 2004
Weizmann Institute scientists have created a new type of nanotube built of gold, silver and other nanoparticles. The tubes exhibit unique electrical, optical and other properties, depending on their components, and as such, may form the basis for future nanosensors, catalysts and chemistry-on-a-chip systems.
Study shows that perception is tied to movement
20 January, 2004
Our fingers run over surfaces; our eyes are in constant motion. This is all a part of 'active sensing,' key principles of which have now been uncovered by a Weizmann Institute study.
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