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Categories: Biology: Biochemistry, Biology: Cell Biology
Published Researchers pinpoint brain cells that delay first bite of food
(via sciencedaily.com) Original source Do you grab a fork and take a first bite of cake, or say no and walk away? Our motivation to eat is driven by a complex web of cells in the brain that use signals from within the body, as well as sensory information about the food in front of us, to determine our behaviors. Now, scientists have identified a group of neurons in a small and understudied region of the brain -- the parasubthalamic nucleus (PSTN) -- that controls when an animal decides to take a first bite of food.
Published Novel genome editing approach restores hearing in adult preclinical models with genetic deafness
(via sciencedaily.com) Original source Researchers restored hearing in preclinical mouse models with a specific form of inherited deafness called DFNA50 caused by mutations in microRNA, by using a novel in vivo CRISPR genome editing approach. Since mouse and human microRNAs have identical sequences, the researchers hope this work can one day be translated into applications for humans.
Published Pumpkin disease not evolving, could make a difference for management
(via sciencedaily.com) Original source The pathogen that causes bacterial spot is very good at what it does. Forming small lesions on the rinds of pumpkins, melons, cucumbers, and other cucurbits, it mars the fruits' appearance and ushers in secondary pathogens that lead to rot and severe yield loss. The bacterium, Xanthomonas cucurbitae, is so successful that it has had no reason to evolve through time or space.
Published Atlas of proteins reveals inner workings of cells
(via sciencedaily.com) Original source Researchers discover how proteins behave inside cells using AI, which has the potential to guide drug design.
Published Discovery of a new defense mechanism in bacteria
(via sciencedaily.com) Original source When confronted with an antibiotic, toxic substance, or other source of considerable stress, bacteria are able to activate a defense mechanism using cell-to-cell communication to 'warn' unaffected bacteria, which can then anticipate, shield themselves and spread the warning signal.
Published Not so simple: Mosses and ferns offer new hope for crop protection
(via sciencedaily.com) Original source Mosses, liverworts, ferns and algae may offer an exciting new research frontier in the global challenge of protecting crops from the threat of disease.
Published The detection of a massive harmful algal bloom in the Arctic prompts real-time advisories to western Alaskan communities
(via sciencedaily.com) Original source A summer 2022 research cruise that detected a massive and highly toxic harmful algal bloom (HAB) in the Bering Strait has provided a dramatic example of science that utilized new technology to track a neurotoxic HAB and effectively communicate that information in real-time to protect remote communities in coastal Alaska.
Published New period product offers progress in women's health
(via sciencedaily.com) Original source Researchers have created an eco-friendly, blood absorbent biomaterial that improves the performance of menstrual products by minimizing blood leakage and spilling, while also helping prevent infection.
Published Phage-derived enzyme targets E. faecalis biofilms to mitigate acute graft-versus-host disease
(via sciencedaily.com) Original source Acute graft-versus-host disease occurs when donor immune cells attack the recipient's tissues after an allogeneic hematopoietic stem cell transplantation (allo-HCT). Researchers recently identified a bacteriophage-derived enzyme called endolysin capable of targeting biofilms formed by Enterococcus faecalis. Their findings offer hope for tailored interventions in allo-HCT.
Published Discovery could help reduce adverse side effects of popular next-generation obesity medications
(via sciencedaily.com) Original source By teasing apart the therapeutic benefits from the adverse effects of new generation obesity medications, researchers found a population of neurons in the brain that controls food intake without causing nausea in an animal model.
Published Big gain in battle against harmful bacteria
(via sciencedaily.com) Original source An unexpected find has enabled important progress to be made in the battle against harmful bacteria.
Published The plague may have caused the downfall of the Stone Age farmers
(via sciencedaily.com) Original source Ancient DNA from bones and teeth hints at a role of the plague in Stone Age population collapse. Contrary to previous beliefs, the plague may have diminished Europe's populations long before the major plague outbreaks of the Middle Ages, new research shows.
Published Tackling the challenge of coca plant ID: Wild vs cultivated for cocaine
(via sciencedaily.com) Original source A new paper reveals that it's not as straightforward as it might seem. Despite decades of data collection by the United Nations Office on Drugs and Crime (UNODC), which has been valuable to monitor changes in areas occupied by illegal coca plantations in South America, there is no reliable scientific method to distinguish between different types of coca plants.
Published Study examines tree adaptability to climate change
(via sciencedaily.com) Original source Many trees could expand their ranges by more than 25 percent based on their potential temperature tolerances.
Published New one-step method to make multiple edits to a cell's genome
(via sciencedaily.com) Original source A team of scientists have developed a new method that enables them to make precise edits in multiple locations within a cell -- all at once. Using molecules called retrons, they created a tool that can efficiently modify DNA in bacteria, yeast, and human cells.
Published Global database reveals large gaps in our knowledge of four-footed animals
(via sciencedaily.com) Original source Researchers developed TetrapodTraits -- a global database of animals with four feet -- which can now be applied for better ecology, evolution and conservation research.
Published Groundbreaking study reveals oceanic seabirds chase tropical cyclones
(via sciencedaily.com) Original source A new study reveals that the rare Desertas Petrels (Pterodroma deserta), a wide-ranging seabird in the North Atlantic, exhibit unique foraging behaviors during hurricane season. Contrary to other pelagic seabirds, these petrels do not avoid intense tropical cyclones but instead exploit the dynamic conditions for their benefit, providing new insights into the impact of cyclones on open ocean marine life.
Published A gut microbe could hold a key to help people benefit from healthy foods
(via sciencedaily.com) Original source In a study involving 50,000+ individuals from around the world, higher gut levels of Blastocystis, a single-celled organism commonly found in the digestive system, were linked to more favorable indicators of health.
Published Scientists discover how to improve vaccine responses to potentially deadly bacterium
(via sciencedaily.com) Original source Researchers have taken a leap forward in understanding how we might fight back against the potentially deadly MRSA bacterium. They have shown in an animal model that targeting a key suppressive immune molecule (IL-10) during the delivery of a vaccine improves the ability of the vaccine to protect against infection.
Published Study reveals environmental impact of artificial sweeteners
(via sciencedaily.com) Original source A recently published study demonstrates how sucralose affects the behavior of cyanobacteria -- an aquatic photosynthetic bacteria -- and diatoms, microscopic algae that account for more than 30% of the primary food production in the marine food chain.