by admin | Apr 21, 2022 | biology, health and medicine, social and behavioural sciences
Stress produces numerous negative effects on the human body. Lying deep within the brain, one particularly sensitive area is the hippocampus, where chronic exposure to stress hormones can lead to the degeneration and death of neurons. Thankfully, the brain holds defence mechanisms that block some of these negative effects. Deciphering these mechanisms with the aim of better treating neurodegenerative diseases and depression is Dr Y. Peng Loh from the Eunice Kennedy Shriver National Institute of Child Health and Human Development in the USA.
by admin | Apr 6, 2022 | biology, earth and environment, trending
Beneath our feet lies one of the most biodiverse habitats imaginable – the soil. These highly active underground microbial communities are vital to ecosystem health; they cycle nutrients, form soil structure, and decompose organic matter, among many other functions. The type of microbes that colonise soil is determined by the local plant community and climatic variables, both of which are rapidly changing due to human activity. In a recent study, Dr Carl Rosier of the University of Delaware has explored how urban development disturbs the environmental cycles that influence the types of microbes found in various soil habitats.
by admin | Mar 16, 2022 | biology, physical sciences
The molecules within plant tissues can tell us about how they can withstand harsh environmental conditions. The Agave tequilana plant, native to Mexico, has a high concentration of fructan molecules throughout its tissues. Alongside his colleagues, Dr José Ordaz-Ortiz at the Center for Research and Advanced Studies of the National Polytechnic Institute in Mexico, combines several powerful analytical techniques to better understand the role that these fructans play in plant biology.
by admin | Mar 4, 2022 | biology, health and medicine
When a supposedly healthy infant passes away, it can be hard to understand why. Juan Lavista Ferres (Microsoft), Dr Jan-Marino Ramirez and Dr Tatiana Anderson (both from Seattle Children’s Research Institute), and Professor Edwin Mitchell (University of Auckland), form the core of a novel collaboration to conduct vital and extensive research into the risk factors and mechanisms behind sudden unexpected infant death. This unique collaboration spanning across disciplines, industries and continents, is providing the deeper understanding that is needed to prevent unnecessary infant deaths.
by admin | Mar 2, 2022 | biology, earth and environment, health and medicine, trending
The destruction of jungle and forest habitats is a serious issue threatening species across the globe. Dr LaRoy Brandt and Maggie Singleton of Lincoln Memorial University studied one such threatened species, Baird’s tapir, in Costa Rica. By identifying the tapir’s tracks and deploying remote trail cameras, the team caught rare glimpses of this threatened species, indicating a return of the native population and an increase in their numbers. The question is, however, is this increase a sign of improving habitats or a result of less favourable forces at play?
by admin | Feb 23, 2022 | biology, health and medicine
Cellular senescence [suh-NEH-Sns] is the process by which cells age and permanently stop dividing but do not die. While the process of senescence creates a barrier to tumour formation, it can still be overcome by cancer cells. Sebastian Igelmann, a PhD student supervised by group leader Dr Gerardo Ferbeyre at the University of Montreal, has identified a group of enzymes that work together to reprogramme cellular metabolism. This work provides important insight into how tumour cells may initiate proliferation and circumvent senescence. Critically, this specialist group of enzymes provides a potential therapeutic target for human cancer treatment.
