Biology and Medicine

Genetic testing for BRCA1 and BRCA2. Illustration: depositphotos.com

BRCA genes not only protect against cancer but also regulate DNA repair pathways in a complex manner

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BRCA1 and BRCA2 are not “cancer genes,” but the guardians of the genome: New study maps checkpoints in DNA repair that may explain differences in risk and response to treatment
Greenland shark. From the study Nature Communications, 17(1), 39. https://doi.org/10.1038/s41467-025-67429-6

Greenland shark retains sight for centuries. Possibly with DNA repair

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A study in Nature Communications found adaptations for low-light vision and hints at maintenance mechanisms that prevent retinal degeneration in extreme old age. However, despite the evolutionary and environmental distance, it may be possible to learn something about the preservation of vision in humans.
Neurons grown from stem cells in the lab form a connected network. In this study, researchers used CRISPR to turn off genes in stem cells, then monitored how successfully the cells developed into neurons. Scale bar: 100 micrometers.

CRISPR screening maps hundreds of genes essential for brain cell development and identifies new syndrome in children

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An international team of researchers, including those from the Hebrew University, identified 331 genes critical for neuronal differentiation, and pointed to PEDS1 as a cause of a neurodevelopmental disorder.
Confocal microscope image of leaf peonies during gas exchange measurement

Seeing the plant "breathe" in real time: New system monitors peonies while measuring gas exchange

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Stomata In-Sight combines live microscopy with a controlled leaf cell, enabling the connection between stomata opening and water loss and CO₂ uptake
Using fMRI. Illustration: depositphotos.com

Breakthrough: fMRI brain training increased antibodies after hepatitis B vaccination

A study by Tel Aviv University, the Technion, and Ichilov in Nature Medicine found that positive anticipation that activates the VTA region of the reward system is associated with a stronger immune response in humans.
Lung on a chip. Illustration: depositphotos.com

“Breathing lung on a chip” from single human cells reveals early stages of tuberculosis

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A new model in Science Advances combines lung cells, blood vessels, and immune cells from the same genetic origin, simulates breathing, and shows how early foci of cellular damage are formed during infection with the tuberculosis bacterium.
Cancer cells. Illustration: depositphotos.com

Copper marker could change the face of the fight against cancer

A new radioactive marker developed by Prof. Sharon Rothstein of Bar-Ilan University promises more accurate imaging of tumors — especially in areas with low oxygen levels — and may improve treatment and monitoring.
The intestinal cells of the mouse are shown in blue and the intestinal bacteria are marked in different colors to learn about their location in the intestine and the relationships between them. Courtesy of the Technion.

The researcher who examines the effect of the population of bacteria in the intestines on our body

Illustration: pixabay.

The resistance mechanism of the FIV virus, which causes "feline AIDS" has been revealed

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Human papillomavirus vaccine. Source: Pan American Health Organization.

Will Australians succeed in eradicating cervical cancer?

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The concept behind the new algorithm - the opening of the "black box" called the human immune system. The illustration is courtesy of the Technion.

An innovative algorithm enables a quantitative comparison of biological processes

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Ado Kanter. Photo: Faith Baginsky.

New research on the way the brain works may help to understand neurodegenerative diseases

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Illustration: Sophie Riches / Wikimedia Commons.

Research: the benefit of smoking cessation drugs reaches only 8%

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neurons. Illustration: ZEISS Microscopy.

Researchers discovered dopamine-stimulating proteins to treat Parkinson's

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Illustration: pixabay.

About 2,000 people die from lung cancer a year, 80% of them are smokers

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Conceptual illustration of a patch carrying microneedles for the treatment of type 2 diabetes patients. [Courtesy: Chen lab, NIBIB]

Body patch for monitoring sugar levels in diabetics

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The general concept: the drug is injected into the blood system but is activated only in the selected place, using external illumination into the relevant tissue. Courtesy of the Technion spokesperson.

Light medicine: release of drugs in a precise place in the body without invasive intervention

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Illustration: pixabay.

Researchers have developed a groundbreaking method for the early diagnosis of preeclampsia

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Illustration: pixabay.

Is surgery the most effective treatment for diabetes?

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Has a solution been found for fragile X syndrome?

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Image: pixabay.

How we link memories to each other and make associations

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Cellular "selfie": an mTEC cell that was photographed using the new method called PLIC. The green dots indicate an interaction between proteins that helps prevent an autoimmune attack. Source: Weizmann Institute magazine.

Security selfie

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'Peacock Jumper'. Source: Jurgen Otto.

Colorful jump

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Cancer cells. Illustration: NIH (Yu (Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research at USC), USC Norris Comprehensive Cancer Center, Pancreatic Desmoplasia).

A new approach will allow personalized medicine for countless types of diseases

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Laboratory flasks containing thousands of white blood cells from a patient who developed "immune tolerance" to the donor after a bone marrow transplant. The cells show no signs of rejection of the donor cells (three columns on the left), but secrete chemicals that indicate rejection (indicated in red) when exposed to the cells of a third person (three columns on the right). Source: Weizmann Institute magazine.

Education for tolerance

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A female golden jackal in Yarkon Park. Photo: Artemy Voikhansky, Wikipedia.

How do you stop rabies?

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Children who grew up with a cat for at least their first year of life were less likely to develop asthma. Photography: Jenny Lee Silver.

Cats against asthma

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Viruses (seen in the picture as small circles) attack bacteria. Sophisticated immune systems. Source: Weizmann Institute magazine.

Ten bacterial defense mechanisms discovered: the genetic editing toolbox expands

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Ferritin is not in the classical secretion pathway of the cell. The location of ferritin distribution (green) and its distribution in bone marrow-derived macrophage cells is not affected by a substance that damages the classical secretory pathway, the Golgi organ (red). Courtesy of the Technion.

A new study changes the way of thinking about the transport of iron in the body

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Agnew's Clinic, an 1889 painting by Thomas Eakins, depicts an American operating theater after the advent of general anesthesia. Source: Thomas Eakins.

Dangerous medicine

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Senescent cells (top) and normal cells (bottom) from the inner lining of a mouse lung, stained with colors that highlight the markers of aging (left) or the characteristics of the lining (right). Filmed with ImageStreamX technology. Source: Weizmann Institute magazine.

Inventory count of senescent cells

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A new X-ray imaging method makes it possible to obtain XNUMXD videos of chemical reactions. Illustration: SLAC National Accelerator Laboratory.

The fastest films capture molecules in motion

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Illustration: pixabay.

Computerized medical diagnosis

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The mystery has been solved: why a small percentage of pancreatic cancer patients survive much longer than others

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Illustration: pixabay.

The discovery that may help predict and even prevent epilepsy

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The figure shows the letters that represent DNA and RNA bases. A CRISPR spin-off is capable of changing bases in DNA and RNA. Source: Shaury Nash.

The most important discoveries in biology in 2017: precise editing of genes; A genetic cure for cancer

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Even if they copy our mind they will not be able to duplicate our consciousness. Illustration: pixabay.

Can we be replicated after death?

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Illustration: pixabay.

To understand the abilities of consciousness with the help of brain research

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Ebola virus. Source: CDC/Cynthia Goldsmith.

Did you cut down a forest? Beware of Ebola

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Illustration: Patrick J. Lynch.

A new wireless pacemaker may prevent common complications

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Illustration: pixabay.

Hand by order

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Ribosome imaging. Source: 2014, Wong et al, CC-BY 4.0 license.

The protein that anesthetizes the bacteria

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Illustration: pixabay.

Fatal exposure in pregnancy

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Illustration: US Food and Drug Administration

People with fatty liver have an "older" brain

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When man separated from his primate family, some DNA segments disappeared along the way. In the picture - a chimpanzee. Source: pixabay.

How losing important sections of DNA made us modern man

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The discovery will make it possible to treat a series of diseases that arise as a result of the accumulation of proteins in cells. Illustration: pixabay.

Researchers have identified a biological mechanism for breaking down protein clumps

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Illustration: pixabay.

The placenta is the first organ of the fetus

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Image for the main page only.

The way the brain deals with information that is not synchronized in time

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"Caveman's disease" got its exotic name because the fungus that causes it is found in the feces of bats and other birds, and cavemen are at high risk of contracting it. Illustration: pixabay.

The connection between Bob Dylan, bats and a new infectious disease in Israel

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A nanocapsule of nucleic acids and peptides that releases the medicine inside in response to defined enzymes. (1) in the first step the peptide undergoes cross-linking on the surface of the nanoparticle; (2) In the next step, a defined enzyme recognizes the peptide cross-linking group, (3) and in the last step, the enzyme's release leads to the release of the drug or the nucleic acids that were locked inside the capsule. Courtesy: Joseph Luciani/UConn.

An innovative system for delivering drugs in the body

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