Новости за 22.11.2022

Vaginal birth after a previous cesarean section is associated with an increased risk of pelvic floor surgery compared with planning another cesarean, according to a new study. The findings provide useful information to help women who have had a previous cesarean section when planning how to give birth in their next pregnancy.

Conception within three months of a miscarriage or an abortion is not associated with increased risks of adverse pregnancy outcomes, according to new research. The study suggests that, contrary to current advice, women could attempt pregnancy after a previous miscarriage or induced abortion without elevated perinatal risks and reassures those who want to try again sooner than guidelines recommend.

Adolescence is a time of significant skeletal development. In a new report, researchers showed that long-term use of minocycline, an antibiotic used for the systemic treatment of adolescent acne, disrupts the normal gut microbiome, leading to poor bone maturation. Surprisingly, these effects were caused by a change in the gut microbiome, leading to an altered profile of bile acids -- molecules that aid digestion and communicate with many organs -- that suppressed the activity of bone-forming cells called osteoblasts... Читать дальше...

A new MRI study revealed that consumption of alcohol even in low to moderate amounts during pregnancy can change the baby's brain structure and delay brain development.

Researchers have developed a novel neutralizing agent, which becomes stronger as the coronavirus mutates.

In the past, PCBs were utilized in a vast range of industrial and commercial products. These highly carcinogenic chemical compounds remain in our environment and accumulate inside organisms. Chiral PCBs are particularly dangerous because they have more chlorine atoms, which are hard for the body to break down, so they can accumulate in the body easily. Also, their isomers are metabolized differently, causing isomer-specific toxicity (particularly neurodevelopmental issues). Scientists reveal exactly... Читать дальше...

A new study found that differences in culture affect when Japanese and American university students feel comfortable providing social support. The researchers found that Japanese university students were less likely than American students to offer assistance to a close friend or family member unless they had been explicitly asked for help, even when they knew that the person needed assistance. There were no differences in providing assistance between Japanese and American students when requests for help were explicitly stated.

A research team reveals a hidden cavity on a key SARS-CoV-2 protein to which drugs could bind.

Aquifer thermal energy storage systems can largely contribute to climate-friendly heating and cooling of buildings: Heated water is stored in the underground and pumped up, if needed. Researchers have now found that low-temperature aquifer thermal energy storage is of great potential in Germany. This potential is expected to grow in future due to climate change.

Scientists have successfully enhanced cultivation of a microorganism that can fix nitrogen (N2) while producing methane (CH4) and ammonia (NH3) and investigated exciting details of its metabolism.

A completely new type of microscope can take 3D images of cells -- while working in a natural environment. The new technology is significantly faster and better than before and will give researchers new opportunities.

A team of synthetic biologists has recently discovered a way that could increase synthetic mRNA's protein production efficiency by up to 10 times, which means the effectiveness of mRNA vaccines and drugs -- such as those used against cancer, COVID-19 or other genetic diseases, will be greatly boosted with even less dosage of the mRNAs.

Antibiotic resistant Pseudomonas bacteria were found to translocate from the gut to the lungs, where more life threatening infections could arise.

An ambitious plan to sequence the genomes of all known species of euglenoids over the next decade has been launched. The network of scientists behind the initiative believe it has the potential to drive breakthroughs ranging from new biofuels and sustainable foods to cancer medicines.

In severe epilepsies, surgical intervention is often the only remedy -- usually with great success. While neuropsychological performance can recover in the long term after successful surgery, on rare occasions, unexpected declines in cognitive performance occur. Researchers have now been able to show which patients are at particularly high risk for this.

From human intestines to the bottom of the sea: Microorganisms populate nearly any habitat, no matter how hostile it is. Their great variety of survival strategies is of huge potential in biotechnology. Most of these organisms, however, are unknown, because they cannot be cultivated. To make better use of this 'microbial dark matter', a team of researchers has now developed a 'sponge' made of porous, formable silicone. Embedded in a chip, the material sucks up microorganisms in the surroundings, which can then be applied for further research.

New research demonstrates that certain chemical coatings, applied to micro/nanoparticles, can alter their swimming propulsion within biological fluids.

New research has identified a new hallmark of the neurodegenerative disorder, amyotrophic lateral sclerosis (ALS), revealing a likely molecular trigger of the disease.

A form of blood cancer known as mantle cell lymphoma is critically dependent on a protein that coordinates gene expression, such that blocking its activity with an experimental drug dramatically slows the growth of this lymphoma in preclinical tests.

Though antiretroviral therapy has made HIV a manageable disease, people living with HIV often suffer from chronic inflammation. This can put them at an increased risk of developing comorbidities such as cardiovascular disease and neurocognitive dysfunction, impacting the longevity and quality of their lives. Now, a new study explains why chronic inflammation may be happening and how suppression or even eradication of HIV in the body may not resolve it.

New observations of WASP-39 b reveal a never-before-seen molecule in the atmosphere of a planet -- sulfur dioxide -- among other details.

Researchers have found that administering remdesivir with corticosteroids to Asian patients who are critically ill with COVID-19 within 9 days of symptom onset reduces overall mortality. Starting treatment later did not have the same effect, suggesting that higher viral loads and serious lung damage impair the effectiveness of this treatment.

A new study has found that the North Atlantic gyre contains higher levels of polyethylene, polypropylene, acrylic, and polyamide, whereas other offshore locations are more associated with PVC and polystyrene.

A research team has found that the Andean region of Chile could face noticeable snow loss and roughly 10% less mountain water runoff with a global warming of approximately 2.5 degrees Celsius compared to pre-industrial levels over the next three decades. The study also shows that what happens in the Andes could be a harbinger of what is to come for the California Sierra Nevada mountain range, and highlights the importance of carbon-mitigation strategies to prevent this from occurring.

Scientists have produced a proof of concept for a new and better way of caring for women facing the life-threatening situation of ectopic pregnancy, which occurs when a fertilized egg implants somewhere other than the lining of the uterus.