Comprehensive coverage

molecular genetics

grow old. Illustration: depositphotos.com

Age slowly, live longer

A study in C. elegans worms found that a type of small RNA molecule is essential for slowing the rate of aging and prolonging the lives of animals with a damaged reproductive system
Microglial cells that were "ripened" in the laboratory from stem cells derived from ALS patients (in green), the cell nuclei - in blue. Photographed using a confocal microscope

The good mutation

Weizmann Institute of Science scientists have discovered a new pathway that may protect nerve cells in the brain and slow down the development of degenerative brain disease
vortex. Illustration: depositphotos.com

Vortex of one atom

The institute's scientists and their research partners from the Technion and Tel Aviv University have for the first time created mixed beams of individual atoms
An eye of a fruit fly engineered to develop an ALS-like disease. Left: Defective protein aggregates leading to ALS-like degeneration. Right: the eye returned to normal following the expression of one of the "sumo" proteins

Heavy weight pellets

Weizmann Institute of Science scientists deciphered the molecular mechanism of "return to normal" and discovered that it is based on labeling proteins for destruction with a special code known as "SUMO"
A bacteriophage (upper right) penetrates a bacterial cell (center of the picture). Bacteria have highly sophisticated immune systems specially prepared to fight viruses

Antivirals discovered in bacteria may be used as drugs for viral diseases

  • 2 תגובות
These days, the ability of these substances to fight viruses that harm humans, including the flu and corona viruses, is being tested
The silencing of the Piezo2 gene in the neurons of the proprioception system led to deformities in the hip joint in the transgenic mice (right) compared to a normal hip joint (left). Photographed using a micro-CT system

The movement to repair the skeleton

It is possible that movement therapy can become part of the treatment protocol for scoliosis, hip dislocation and other skeletal deformities, the treatment of which is currently generally based on the restriction of movement
An olive orchard is infected with the bacterium Xylella fastidiosa in the province of Puglia in Italy. The bacterium damages the flow of fluids in the trees and causes dehydration. Photo: shutterstock

Farmers and anti-bacterial viruses

  • One response
The researchers mapped the different versions of circular nucleotide systems

Which is good for bacteria

  • No comments
From the right: Dr. Ronit Nir, Ran Shahar, Miguel Engel Garcia-Campos, Dr. Modi Safra, Dr. Sharit Adelheit-Flor and Dr. Shraga Schwartz. There are many tags in the cell. Photo: Weizmann Institute Spokesperson

The golden tag: How does the m6A chemical tag involved in the control of the human genome work?

  • No comments
cell division (mitosis). Illustration from PIXABAY.COM

Proteins are also allowed to make mistakes

  • One response
The world champions in evolution. Illustration: Yuval Robichak, for the Weizmann Institute

The world champions in evolution

  • One response
From the right: Dr. Noam Stern-Ginosar, Aharon Nachshon, Julie Tai-Schmidel and Roni Winkler. Uninvited guests. Photo: Weizmann Institute spokeswoman

Why is there a mechanism in healthy cells that allows viruses to multiply and spread themselves?

  • No comments
The cells labeled with fluorescent dyes in the primary tissues of the wing (left), eye (center) or leg (right) in the fruit fly larva, do not migrate when they have normal caspase activity (top row). When the caspases are removed, these cells begin to migrate after irradiation to other parts of the tissue (bottom row)

What happens when the mechanism for programmed cell death is removed from the cell

  • 2 תגובות
Microscope image of yeast cells. Mitochondrial organelles (indicated in red) are attached to peroxisomes (in light blue) by tiny "ribbons" (in green). Illustration: Weizmann Institute

No organ is an island

  • One response
Illustration: pixabay.

When the genetic messenger discovers independence

  • No comments
Illustration: Weizmann Institute magazine.

Researchers have identified 6,500 genes that are expressed differently in women and men

  • 8 תגובות
"Throughout evolution, the cells that knew how to produce proteins in the most 'cheap' way acquired a huge advantage. You can say that the one who was the most economical survived." Source: Weizmann Institute magazine.

A traffic light of bacteria

  • One response
How do we know how to locate our nose in space or follow the position of the arm during its movement without the sense of sight?. Photo: Barbara Piuma / Wikimedia.

Knowing where the nose is: the mechanisms of action of the sixth sense

  • No comments
"Super-pathways" in the PathCards online database: the map of human biological pathways - each vertex symbolizes a biological pathway, and each connecting line symbolizes a connection between pathways. The colors symbolize the sources from which the routes are taken. Each linked group constitutes a super-pathway, which groups together several closely related pathways, and enables a more efficient study of biological pathways from several different sources. Illustration: Prof. Doron Lantz

Kindergartens also have social networks

  • One response
Chemotherapy. Illustration: shutterstock

LIP-LAP

  • No comments

Survival - in the brain

  • No comments
Bacteriophages attack bacteria. Illustration: shutterstock

Viruses in the service of future medicine

  • No comments
Prof. Trudy McKay, University of North Carolina. Winner of the 2016 Wolf Prize for Agriculture

The pioneer of the genetic architecture of complex traits, Prof. Trudy McKay from the USA won the Wolf Prize for Agriculture

  • No comments
Male fertility. Illustration: shutterstock

Mutants from Venus, Mutants from Mars

  • One response
Modular model: two different groups of cells - the builders of the cartilage (orange) and the builders of the bone protrusions (green) - are involved in the development of the bone in the fetus

The collagen puzzle

  • One response
Science website logo
SEARCH