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108 results for Genetics

Weizmann Scientists Discover a Gene That Ties Stress to Obesity and Diabetes
Weizmann Scientists Discover a Gene That Ties Stress to Obesity and Diabetes

https://weizmann-usa.org/news-media/news-releases/weizmann-scientists-discover-a-gene-that-ties-stress-to-obesity-and-diabetes/

Apr 20, 2010... REHOVOT, ISRAEL—April 19, 2010—The constant stress that many are exposed to in our modern society may be taking a heavy toll: Anxiety disorders and depression, as well as metabolic (substance exchange) disorders, including obesity, type 2 diabetes, and arteriosclerosis, have all been linked to stress. These problems are reaching epidemic proportions: Diabetes alone is expected to affect some 360 million people worldwide by the year 2030. While anyone who has ever gorged on chocolate before an important exam recognizes the tie between stress, changes in appetite, and anxiety-related behavior, the connection has lately been borne out by science, although the exact reasons for the connection aren't crystal clear. Dr. Alon Chen of the Weizmann Institute's Department of Neurobiology and his research team have now discovered that changes in the activity of a single gene in the brain not only cause mice to exhibit anxious behavior, but also lead to metabolic changes that cause them to develop symptoms associated with type 2 diabetes. These findings were published online this week in the Proceedings of the National Academy of Sciences (PNAS).

TAGS: Culture, Genetics, Diabetes, Metabolism

2010 Young Innovators Under 35: Jacob Hanna
2010 Young Innovators Under 35: Jacob Hanna

https://weizmann-usa.org/news-media/in-the-news/2010-young-innovators-under-35-jacob-hanna/

Aug 01, 2010... Jacob Hanna, 30
Whitehead Institute
Reprogramming cells to cure diseases
Mere months after Kyoto University researchers announced in 2007 that they had discovered how to turn skin cells into induced pluripotent stem cells (iPS cells), Jacob Hanna used these new types of cells to cure mice of sickle-cell anemia, in which a genetic defect causes bone marrow to make defective red blood cells. Hanna, a fellow at the Whitehead Institute, took skin cells from a diseased mouse and reprogrammed them create iPS cells, which behave like embryonic stem cells, readily turning into any cell type in the body. He then corrected the sickle-cell genetic defect and prodded the iPS cells to develop into the type of marrow stem cell that manufactures a mouse’s blood cells. These healthy cells were transplanted back into the mouse, whose immune system accepted them as the animal's own tissue. The treated mouse began producing healthy red blood cells on its own.

TAGS: Genetics, Awards, Medicine, Immune system

New German-Israeli Laboratory Inaugurated at the Weizmann Institute
New German-Israeli Laboratory Inaugurated at the Weizmann Institute

https://weizmann-usa.org/news-media/news-releases/new-german-israeli-laboratory-inaugurated-at-the-weizmann-institute/

Mar 05, 2014... Left to right: Prof. Dr. Peter Gruss, Prof. Alon Chen, and Prof. Daniel Zajfman.
REHOVOT, ISRAEL—March 5, 2014—On Tuesday, March 4, 2014, a cooperation agreement was signed between the Max Planck Society and the Weizmann Institute of Science to inaugurate the Max Planck – Weizmann Laboratory for Experimental Neuropsychiatry and Behavioral Neurogenetics. The agreement was officially signed at the Weizmann Institute by Prof. Dr. Peter Gruss, President of the Max Planck Society, Prof. Daniel Zajfman, President of the Weizmann Institute, Dr. Ludwig Kronthaler, General Secretary of the Max Planck Society, and Prof. Haim Garty, Vice President of the Weizmann Institute.

TAGS: Genetics, Neuroscience, Mental health

Science Tips, July 2013
Science Tips, July 2013

https://weizmann-usa.org/news-media/news-releases/science-tips-july-2013/

Aug 01, 2013... Scanning electron microscope (SEM) image of a logic circuit based on 14 nanowires. From the work of Prof. Joselevich.
Researchers working with tiny components in nanoelectronics face a challenge similar to that of parents of small children: teaching them to manage on their own. The nano-components are so small that arranging them with external tools is impossible. The only solution is to create conditions in which they can be “trusted” to assemble themselves.

TAGS: Genetics, Plants, Biochemistry, Inflammation, Nanoscience, Enzymes

Researchers Discover 10 New Immune Systems in Bacteria
Researchers Discover 10 New Immune Systems in Bacteria

https://weizmann-usa.org/news-media/in-the-news/researchers-discover-10-new-immune-systems-in-bacteria/

Jan 25, 2018... Phi3T bacteriophages attacking Bacillus subtilis, ROTEM SOREK
Bacteria have been defending themselves from phages—viruses that attack bacterial cells—for billions of years, and unlocking the immune mechanisms they use to protect themselves has led to the development of powerful molecular biology tools such as restriction enzymes and CRISPR-Cas9. Now, researchers report in Science today (January 25) that they have discovered 10 more immune systems that bacteria use to protect themselves against phages and plasmids, opening up the possibility to add new tools to the molecular biology toolbox.

TAGS: Genetics, Biology, Evolution, Immune system, Bacteria

Bacteria Alert by Scientist
Bacteria Alert by Scientist

https://weizmann-usa.org/news-media/in-the-news/bacteria-alert-by-scientist/

Dec 01, 2017... The Israeli crystallographer, who shared the chemistry Nobel with Venkatraman Ramakrishnan and Thomas A. Steitz in 2009 for her work on ribosome, was delivering the 79th Foundation Day lecture on “Next Generation Environmental Friendly Antibiotics” at Bose Institute on Thursday.
“Resistance to antibiotics is a real big problem to modern medicine. Multi-drug resistance has developed not because we use antibiotics, but because bacteria has evolved and uses mechanisms against other bacteria in their fight for resources,” Yonath said.

TAGS: Genetics, Medicine, Bacteria

Darwin's Finches and the Evolution of Smell: Sequenced Zebra Finch Genome Hints That Smell May Play a Role in the Birds' Communication
Darwin's Finches and the Evolution of Smell: Sequenced Zebra Finch Genome Hints That Smell May Play a Role in the Birds' Communication

https://weizmann-usa.org/news-media/news-releases/darwin-s-finches-and-the-evolution-of-smell-sequenced-zebra-finch-genome-hints-that-smell-may-play-a-role-in-the-birds-communication/

Apr 06, 2010... REHOVOT, ISRAEL—April 6, 2010—Darwin's finches—some 14 related species of songbirds found on the Galapagos and Cocos Islands—will forever be enshrined in history for having planted the seeds of the theory of evolution through natural selection. Today, 150 years after Darwin's famous book, finches can still teach us a lesson about evolution. A large, international group of researchers, among them Prof. Doron Lancet and Dr. Tsviya Olender of the Department of Molecular Genetics at the Weizmann Institute of Science, recently produced the full genome of the zebra finch and analyzed it in detail. The report on the zebra finch genome, which appeared April 6 in Nature, is especially significant for what it reveals about learning processes for language and speech. For Prof. Lancet and Dr. Olender, however, the findings have provided an interesting twist on the evolution of the sense of smell.

TAGS: Genetics, Evolution, Senses

Israeli Scientists Discover Mechanism of Protein-Producing Mistakes in Cell
Israeli Scientists Discover Mechanism of Protein-Producing Mistakes in Cell

https://weizmann-usa.org/news-media/in-the-news/israeli-scientists-discover-mechanism-of-protein-producing-mistakes-in-cell/

Aug 02, 2019... JERUSALEM, Aug. 1 (Xinhua) – Israeli scientists have discovered when and where mistakes occur in the cellular manufacture of proteins, which may help with Alzheimer’s and cancer researches, the Weizmann Institute of Science (WIS) reported Thursday.
The researchers not only succeeded in measuring the rate of such mistakes, but also revealed that the DNA contains a “mistake manual” of sorts that dictates where these mistakes need to be avoided and where they may be tolerated or even welcome.

TAGS: Genetics, Proteins, Alzheimers

These Foods Speed Up Circadian Rhythm And Increase Lifespan
These Foods Speed Up Circadian Rhythm And Increase Lifespan

https://weizmann-usa.org/news-media/in-the-news/these-foods-speed-up-circadian-rhythm-and-increase-lifespan/

Oct 10, 2015... © Photo courtesy of Flickr, Judit Klein. Blue cheese is among the many foods that may help repair circadian clocks and lower the risk of age-related diseases.
Imagine a dietary supplement that could slow down age-related diseases and possibly lengthen the life humans live. Well, polyamines, compounds found abundantly in nearly every living cell, may have the power to do this. They play an intrinsic role in the body’s internal clock and regulate cell growth and death. Researchers discovered that as mice aged, their levels of polyamines began to drop, slowing down the body clock’s natural cycle (roughly 24 hours), and increasing their susceptibility to disease. The findings, published in the journal Cell Metabolism, explain that by eating polyamines, we may be able to stave off disease and even increase longevity.

TAGS: Genetics, Biochemistry, Biology, Enzymes

Bacterial Immune Systems Take the Stage
Bacterial Immune Systems Take the Stage

https://weizmann-usa.org/news-media/in-the-news/bacterial-immune-systems-take-the-stage/

Apr 08, 2018... Bacteria (illustrative). (photo credit: REUTERS)
Until a decade ago, scientists were not aware that bacteria had complex immune systems that could keep up with the pace of evolution in viruses called phages that infect bacteria. That changed with the discovery of what is now the most famous bacterial immune mechanism: CRISPR. This is a natural gene editor that has revolutionized the world of biological research in thousands of labs around the world. Researchers now understand that most microorganisms have sophisticated immune systems of which CRISPR is just one element; but there has been no good way to identify these systems.

TAGS: Genetics, Biology, Evolution, Immune system, Bacteria

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