White blood cells use their nuclei to exert force and insert themselves between endothelial cells, creating large holes in the blood vessel walls. This discovery sheds light on the movement of immune cells and may aid in cancer research.
Researchers at Weizmann Institute of Science directly observed crystallization process on molecular level, validating recent theories and showing that knowing how crystal grows can predict end structure. The study found that dense phases lead to lower energy barrier and more stable crystals.
Researchers developed a new method for programming proteins used in vaccines against infectious diseases, enabling stable production and lower costs. The approach has shown promising results in animal trials, provoking a protective immune response.
Cytomegalovirus has evolved to hide from the immune system by presenting decoy markers, tricking NK cells into thinking infected cells are healthy. The immune system responds by evolving new mechanisms to detect and kill the virus, including a molecule called NK1.1.
Researchers discovered a separate mechanism in the brain that deals only with chronic stress, involving a small group of nerve cells in the paraventricular nucleus. The CRFR1 system is thought to play a role in regulating cortisol levels and may be involved in depression, with patients having more of this receptor than average.
Researchers have developed a method to predict interactions among multiple drugs in combination, bypassing the need for astronomical measurements. The new mathematical model enables scientists to identify optimal blends for chemotherapy cocktails and potentially aid personalized medicine.
Researchers used gene expression analysis to map the functions of liver cells, revealing nine distinct types each specializing in its own tasks. This discovery may help clarify common liver disorders and provide insights into human health.
Weizmann Institute scientists have successfully erased fear memories in mice by disrupting the communication between two brain regions. The study, published in Nature Neuroscience, may one day lead to novel therapies for post-traumatic stress disorder (PTSD) and other anxiety disorders.
Researchers discovered that massive stars can exhibit instability for several months before a supernova explosion, creating a dense gas shell around themselves. This insight came from analyzing data collected by the Palomar Transient Factory telescope network.
Researchers suggest ancient ocean had green rusty mineral, green rust, which could have delivered substantial proportion of iron to early ocean sediments. Green rust forms under low oxygen conditions and can transform into iron oxides over time.
Researchers have identified ancient fava beans in Northern Israel, dating back 14,000 years, to understand the evolution of the crop and improve its biodiversity. The findings provide crucial clues about the time and place where wild faba plants grew naturally.
By controlling electron spin, scientists have almost fully suppressed hydrogen peroxide formation during water splitting, paving the way for efficient solar-based hydrogen production. This breakthrough could lead to more stable and efficient photoelectrochemical cells, increasing the feasibility of using solar energy to split water.
A study of an online stroke forum found that three in 10 stroke survivors will experience further strokes, highlighting the importance of secondary prevention medications. Despite this, patients often disregard general practitioners' advice on these medications, with some stopping treatment completely due to side effects.
Researchers developed a model suggesting early oceans were acidic, with pH between 6.0 and 7.5, conducive to primitive life's existence. Higher CO2 levels controlled ocean acidity, influencing chemical weathering and ion fluxes.