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Categories: Anthropology: Early Humans, Biology: Microbiology
Published Climate change coping mechanism discovered in humble algae
(via sciencedaily.com) Original source One of the building blocks of ocean life can adapt to cope with the effects of climate change, according to new research. The discovery holds promises for biotechnology developments that could counter the negative effects of changing environmental conditions, such as ocean warming and even the reduction in the productivity of crops.
Published Statewide prevalence data on two new emerging pathogens in healthcare settings
(via sciencedaily.com) Original source Researchers conducted a statewide survey of all patients on breathing machines in hospitals and long-term care facilities and found that a significant percentage of them harbored two pathogens known to be life-threatening in those with compromised immune systems. One pathogen, Acinetobacter baumannii, was identified in nearly 31 percent of all patients on ventilators to assist with their breathing; Candida auris was identified in nearly 7 percent of patients on ventilators, according to the study.
Published Fecal microbe transplants: B. vulgatus genes that correlate with early colonization
(via sciencedaily.com) Original source Fecal microbe transplants from healthy donors can treat patients with recurrent Clostridium difficile infections. However, after tens of thousands transplants, little was known about which donor strains provide long-term engraftment, and which engraft early after the transplant. Most failures of fecal microbe transplantation occur in the first four weeks. Researchers have now found 19 Bacteroides vulgatus genes that were unique to three strains that show early engraftment in patients after a fecal transplant, as opposed to seven strains that did not show early engraftment.
Published 200-year-old DNA helps map tiny fly's genetic course to new lands, modern times
(via sciencedaily.com) Original source Researchers have extracted and analyzed DNA from fruit flies housed in museum collections in Lund, Stockholm and Copenhagen. Surprisingly, the researchers found the fruit flies collected in Sweden in the early 1800s were more genetically similar to 21st century flies than the Swedish samples from the 1930s.
Published Engineered bacteria paint targets on tumors for cancer-killing T cells to see
(via sciencedaily.com) Original source Synthetic biologists report on a new approach to attacking tumors. They have engineered tumor-colonizing bacteria (probiotics) to produce synthetic targets in tumors that direct CAR-T cells to destroy the newly highlighted cancer cells.
Published Honey bees may inherit altruistic behavior from their mothers
(via sciencedaily.com) Original source True altruism is rare behavior in animals, but a new study has found that honey bees display this trait. Additionally, they found that an evolutionary battle of genetics may determine the parent they inherit it from.
Published Win-win in muscle research: Faster results and fewer laboratory animals thanks to new method
(via sciencedaily.com) Original source To study muscle diseases, scientists rely on the mouse as a model organism. Researchers have now developed a new method that is not only faster and more efficient than conventional ones but also greatly reduces the number of experimental animals needed for studying the function of genes in muscle fibers.
Published Endemic malaria found in high, dry northwestern Kenya
(via sciencedaily.com) Original source Turkana County in northwestern Kenya was thought to be too dry for the mosquitoes that harbor malaria-causing parasites. But that assumption may have been wrong, according to a new study by malaria researchers. The arrival of a new mosquito and a more pernicious species of parasite could reverse the progress East Africa has made in controlling malaria.
Published The prevalence of malaria infections varies among migrant populations
(via sciencedaily.com) Original source The prevalence of malaria infections among migrants from sub-Saharan Africa is considerably high (8%), while Asian and Latin American migrants have a much lower prevalence, according to a new study.
Published Using different flours for sourdough fosters different bacteria -- and flavors
(via sciencedaily.com) Original source A new study of the microbial ecosystem in sourdough finds that using different types of flour fosters distinct bacterial communities, and that these differences contribute to the variation of sourdough aromas and flavors.
Published An AI tool that can help forecast viral outbreaks
(via sciencedaily.com) Original source EVEscape predicts future viral mutations, new variants using evolutionary, biological information.
Published Doubling down on known protein families
(via sciencedaily.com) Original source A massive computational analysis of microbiome datasets has more than doubled the number of known protein families. This is the first time protein structures have been used to help characterize the vast array of microbial 'dark matter.'
Published Mummified feces reveals pre-Columbian cultures of the Caribbean consumed a diversity of plants
(via sciencedaily.com) Original source DNA analysis of mummified feces reveals two pre-Columbian Caribbean cultures ate a wide variety of plants, like maize, sweet potato, and peanuts -- and tobacco and cotton traces were detected too, according to a new study.
Published TB vaccine discovery paves path to end number one killer of people living with HIV
(via sciencedaily.com) Original source Scientists have discovered a tuberculosis (TB) vaccination strategy that could prevent the leading cause of death among people worldwide living with HIV. The results showed that, when given intravenously, the only commercially available vaccine against TB successfully and safely prevents lung infection in monkeys infected with the simian, or primate, form of HIV, called SIV. This is despite the vaccine being contraindicated for people living with HIV.
Published Neanderthal gene variants associated with greater pain sensitivity
(via sciencedaily.com) Original source People who carry three gene variants that have been inherited from Neanderthals are more sensitive to some types of pain, according to a new study.
Published How plant-derived nutrients can affect the gut and brain
(via sciencedaily.com) Original source Can plant-derived nutrients alter gut bacteria to affect brain function? Scientists investigated this question in a study of overweight adults. Their findings suggest that dietary fiber can exert influence on both the composition of gut bacteria and the reward signals in the brain and associated food decision-making.
Published Evidence from the remains of 1918 flu pandemic victims contradicts long-held belief that healthy young adults were particularly vulnerable
(via sciencedaily.com) Original source New analysis of the remains of victims of the 1918 influenza pandemic, which killed an estimated 50 million people worldwide, contradicts the widespread belief the flu disproportionately impacted healthy young adults.
Published New discovery may 'unlock' the future of infectious disease and cancer treatment
(via sciencedaily.com) Original source Researchers have identified a 'guard mechanism' for a protein which attacks microbes in infected cells, opening the possibility of new treatments for Toxoplasma, Chlamydia, Tuberculosis and even cancer.
Published Study shows prior exposure to common virus shields against birth defects and miscarriage
(via sciencedaily.com) Original source Researchers found that pre-existing immunity to Cytomegalovirus (CMV) can limit its transmission during pregnancy and protect against associated birth defects. The study marks an important step toward the development of a vaccine to protect mothers and their babies against the virus, which is a leading cause of miscarriage and birth defects.
Published The end of genes: Routine test reveals unique divergence in genetic code
(via sciencedaily.com) Original source Scientists testing a new method of sequencing single cells have unexpectedly changed our understanding of the rules of genetics. The genome of a protist has revealed a seemingly unique divergence in the DNA code signalling the end of a gene, suggesting the need for further research to better understand this group of diverse organisms.