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Science News Archive December 2019 - Page 35


Page 35 of 36

New clues about the origins of familial forms of Amyotrophic lateral sclerosis

Researchers made progress in understanding protein conformation and accumulation in familial ALS, a devastating neurodegenerative disorder affecting 1-3 individuals per 100,000. The study sheds light on the interaction between normal and mutant Sod1 proteins, revealing misfolding as a central problem in ALS.

SourceInstituto Nacional de Ciência e Tecnologia de Biologia Estrutural e Bioimagem (INBEB)·JournalProceedings of the National Academy of Sciences·DateDec 2, 2019

In hunted rainforests, termites lose their dominance

A study by Rice ecologists found that termites lose their dominance in hunted areas of an African forest, with a 170-fold decrease in abundance. Termites play crucial roles as ecosystem engineers and food sources for other organisms, highlighting the cascading impacts of megafauna loss.

SourceRice University·JournalBiological Conservation·DateDec 2, 2019

A new offensive against Alzheimer's disease

Researchers at the University of Pittsburgh are using advanced MRI technology to study the connection between small vessel disease and Alzheimer's disease, aiming to identify new prevention and treatment targets. The team will visualize cerebrospinal fluid flow in real-time, shedding light on pathways linking SVD and CSF clearance.

Brush your teeth to protect the heart

A nationwide cohort study in Korea found that frequent tooth brushing reduced the risk of atrial fibrillation and heart failure by 10% and 12%, respectively. The study suggests a potential mechanism: reducing bacteria in the subgingival biofilm, which can prevent translocation to the bloodstream.

SourceEuropean Society of Cardiology·JournalEuropean Journal of Preventive Cardiology·DateDec 2, 2019

Study shows importance of Quality of Life scores as prognostic factors in cancer patients

A meta-analysis of 44 clinical trials found that patient-reported outcomes are significantly associated with overall survival, confirming their importance as prognostic factors. This study aims to improve patient care by providing clinicians with valuable insights into cancer patients' needs and concerns.

A close look at a sticky situation

New research published in PNAS finds the missing link between soft surface adhesion and the roughness of the hard surface it touches. The study reveals that small-scale roughness can create more surface area for soft materials to grip, explaining predicted adhesion behavior.

SourceUniversity of Pittsburgh·JournalProceedings of the National Academy of Sciences·DateDec 2, 2019

Bushmeat may breed deadly bacteria

Researchers analyzed bushmeat samples from Tanzania's Serengeti National Park and found 27 different groups of bacteria, including those causing anthrax, brucellosis, and Q fever. The team identified a high prevalence of Clostridial species, which cause diseases like botulism and tetanus.

SourcePenn State·JournalScientific Reports·DateDec 2, 2019

Mechanism that triggers the inflammatory process by Mayaro virus is discovered

A Brazilian team at FAPESP-supported Center for Research on Inflammatory Diseases identified the strategy used by immune cells to combat the pathogen Mayaro virus. The study provides a basis for the development of drugs against this disease, targeting the NLRP3 inflammasome and its role in producing proinflammatory molecules.