All news from Neurology

Risk Factors Linked to REM Sleep Behavior Disorder

Taking antidepressants for depression, having post-traumatic stress disorder or anxiety diagnosed by a doctor are risk factors for a disruptive and sometimes violent sleep disorder called rapid eye movement (REM) sleep behavior disorder, according to a study published in the online issue of Neurology®, the medical journal of the American Academy of Neurology. The study also found men are more likely to have the disorder.

Formation of Long-term Memory Encoded Engram Neurons

While long-term memory (LTM) is known to be encoded in specific neural cells, engram neurons, it has been unclear how these engram neurons are formed during training. In Drosophila, aversive olfactory LTM is formed by repetitive training trials with rest intervals between training trial, spaced training.

Research: Synaptic Protein Regulates Anxiety Behaviour

Anxiety disorders are severe mental disorders in which patients suffer from intense fears and anxiety or from sudden, inexplicable panic attacks. In extreme cases, the affected individuals barely leave their homes, which have serious consequences for their relationships with family and friends as well as for their professional lives. Scientists at the Max Planck Institute for Experimental Medicine in Göttingen have now identified a synaptic protein which, when inactivated, has an anxiolytic effect in mice.

Nanoparticles Use in Treating Snake Bites

Venomous snakebites affect 2.5 million people, and annually cause more than 100,000 deaths and leave 400,000 individuals with permanent physical and psychological trauma each year. Researchers reporting in  PLOS Neglected Tropical Diseases  have now described a new approach to treating snake bites, using nanoparticles to bind to venom toxins and prevent the spread of venom through the body.

Multiple Metabolic Pathways Exhibited by Sleeping Sickness Parasite

Parasitic protozoa called trypanosomes synthesize sugars using an unexpected metabolic pathway called gluconeogenesis, according to a study published in the open-access journal  PLOS Pathogens  by David Horn of the University of Dundee in the UK, and colleagues. The authors note that this metabolic flexibility may be essential for adaptation to environmental conditions and survival in mammalian host tissues.