Influence of anesthetics of neonatal rat brain
A neurobiological study by young scientists of KFU appeared in Scientific Reports
2021-05-20
(Press-News.org) Study lead, Research Associate of the Neurobiology Lab Marat Minlebaev explains, "Our brain is a complex mechanism, and it's important to understand how it works. If we understand how our brain functions, we can put forth new treatment methodologies or prevent pathologies, both congenital and acquired."
A number of techniques were used to undertake the research, so, apart from biologists, other scientists were also invited to partake.
"Fourth year students Viktoria Shumkova and Violetta Sitdikova conducted experiments and analyzed their results," says Minlebaev. "To implement the idea, new software was needed. Here, we were helped by PhD student of the Institute of IT and Intelligent Systems Aleksey Leukhin. Senior year student of the Institute of Physics Ildar Reshapov created the necessary device. The merging of knowledge and competence of representatives of different branches of science helps conduct research on an entirely new level."
The paper proved that urethane, a previously widely used anesthetic, dose-dependently changes the cortical rhythms of brain activity and, due to this, is very suitable for experimenting. Another popular anesthetic, isoflurane, doesn't show such properties at the same scale. To conduct experiments, neonatal rats were used, because their developing brain is functionally similar to a human embryo brain during the latter half of intrauterine development. Thanks to a noninvasive technique (also developed by the team) brain activity can be monitored without skull penetration. Optical intrinsic signal imaging helped to register sensory evoked response and local changes in blood flow in the rats' cerebral cortex.
The practical significance of the results is that the data shows how different anesthetics influence brain functioning.
INFORMATION:
[Attachments] See images for this press release:
ELSE PRESS RELEASES FROM THIS DATE:
2021-05-20
Researchers from Russia and Germany have created a genome-wide atlas of developmental alternative splicing changes of seven organs in six mammal species and chicken.
The research was published in the journal Nature Genetics.
As the protein encoding RNA matures in eukaryotes, it gets spliced, with some parts cut out and the remaining fragments stitched together. Alternative splicing means that the same RNA fragment can either be cut out from or kept within the mature RNA. In this case, one gene can encode several RNAs and, therefore, several proteins. Although alternative splicing is known to be essential for many tissues to develop and function properly and its various disorders may cause health problems, ...
2021-05-20
It is ingrained in parents to curtail the hours their children spend in front of the television. Anecdotal evidence suggests that prolonged viewing of television and use of smart gadgets during early years can adversely affect a child's eyesight and behavioral development. However, there is little scientific evidence to support such observations on the effects of excessive television exposure on children's visual acuity. Now, Professor MATSUO Toshihiko (M.D., Ph.D.) and Professor YORIFUJI Takashi (M.D., Ph.D.) from Okayama University describe how such exposure can indeed have detrimental effects on children's eyesight during later years.
The researchers used a national database of the Japan Government, based on the annual survey of all children born in the certain period of the ...
2021-05-20
Nerves release a protein at the injury site that attracts growing nerve fibers and thus keeps them entrapped there. This prevents them from growing in the right direction to bridge the injury. The research team headed by Professor Dietmar Fischer reports in the journal Proceedings of the National Academy of Sciences (PNAS) from 25. May 2021.
There must be another cause
Three main causes for the inability of injured nerves of the central nervous system, or CNS, to regenerate have been known to date: the insufficient activation of a regeneration program in injured nerve cells that stimulates the growth of fibers, so-called axons; the formation of a scar at the site ...
2021-05-20
TROY, N.Y. -- Heart disease and cancer are the leading causes of death in the United States, and it's increasingly understood that they share common risk factors, including tobacco use, diet, blood pressure, and obesity. Thus, a diagnostic tool that could screen for cardiovascular disease while a patient is already being screened for cancer, has the potential to expedite a diagnosis, accelerate treatment, and improve patient outcomes.
In research published today in Nature Communications, a team of engineers from Rensselaer Polytechnic Institute and clinicians from Massachusetts General Hospital developed a deep learning algorithm that can help assess a patient's risk of cardiovascular disease ...
2021-05-20
Herndon, Va. (May 20, 2021) - The international journal Risk Analysis has published a timely special issue for May 2021, "Global Systemic Risk and Resilience for Novel Coronavirus and COVID-19." Featuring 11 papers written for this issue over the past year, the collection represents a sampling of insights and viewpoints from scholars across risk sciences and resilience analytics to guide decision-making and operations related to the COVID-19 pandemic.
The 11 papers address the breadth of risk sciences represented by the Society for Risk Analysis (SRA), including risk perception, risk and resilience, human health and ...
2021-05-20
A University of Otago study has revealed how earthquake upheaval has affected New Zealand's coastal species.
Lead author Dr Felix Vaux, of the Department of Zoology, says earthquakes are typically considered devastating events for people and the environment, but the positive opportunities that they can create for wildlife are often overlooked.
For the Marsden-funded study, published in Journal of Phycology, the researchers sequenced DNA from 288 rimurapa/bull-kelp plants from 28 places across central New Zealand.
"All specimens from the North Island were expected to be the species Durvillaea antarctica, but unexpectedly 10 samples from four sites were ...
2021-05-20
WASHINGTON--Yellowstone National Park is famous for harsh winters but a new study shows summers are also getting harsher, with August 2016 ranking as one of the hottest summers in the last 1,250 years.
The new study drew upon samples of living and dead Engelmann spruce trees collected at high elevations in and around Yellowstone National Park to extend the record of maximum summer temperatures back centuries beyond instrumental records. The findings were published in Geophysical Research Letters, AGU's journal for high-impact, short-format reports with immediate implications spanning all Earth and space sciences.
The ...
2021-05-20
Palo Alto, CA--In a new study, researchers found that recreational boats and high-speed ferries contribute significant underwater noise in San Francisco Bay, a highly urbanized coastline that is increasingly becoming a stop along the migratory routes of gray and humpback whales and home to bottlenose dolphins and harbor porpoises.
The study is the first of its kind to use radar to track boats not broadcasting information through the Automatic Identification System (AIS), a navigation safety system required onboard large commercial ships. The findings add to the growing evidence that smaller vessels, ...
2021-05-20
Durham, NC -- Bone marrow failure due to acute myeloid leukemia (AML) is a significant factor behind the disease's high rate of morbidity and mortality. Previous studies in mice suggest that AML cells inhibit healthy hematopoietic (blood) stem and progenitor cells (HSPC). A study released in STEM CELLS adds to this extent of knowledge by showing how secreted cell factors, in particular a protein called transforming growth factor beta 1 (TGFβ1), leads to a breakdown in the production of healthy blood cells (a process called hematopoiesis) in humans.
The study's findings indicate that blocking TGFβ1 could improve ...
2021-05-20
WASHINGTON, DC - MAY 20, 2021 - As Congress considers legislation to reform prescription drug pricing, a new analysis conducted by the West Health Policy Center and released by its Council for Informed Drug Spending Analysis (CIDSA) estimates that the Elijah E. Cummings Lower Drug Costs Now Act (H.R. 3) could result in hundreds of billions of dollars in lower commercial health insurance costs by 2030.These savings would come from a $195 billion reduction in employer costs and $98 billion in savings for workers.
The non-profit, non-partisan West Health Policy Center engaged the actuarial firm Milliman, to analyze the impact of the legislation on stakeholders. Using Milliman's analysis and other data sources West Health ...
LAST 30 PRESS RELEASES:
[Press-News.org] Influence of anesthetics of neonatal rat brain
A neurobiological study by young scientists of KFU appeared in Scientific Reports