Category Health/Medical

Connection found between Memory Mechanisms, Resistance to Epilepsy

eEF2 pathways regulate cellular protein translation. (A) Activation of NMDA receptor enables Ca2+ to enter the cell. In the presence of Ca2+ and calmodulin (CaM) elongation factor 2 kinase (eEF2K) is activated, leading to increased phosphorylation (and inhibition) of elongation factor 2 (eEF2) and overall decreased protein translation. (B) Protein kinase A (PKA) can phosphorylate eEF2K, thereby reducing eEF2K dependency on calmodulin and Ca2+, making eEF2K more active. In the presence of calmodulin and Ca2+, eEF2K inhibits eEF2 activity by phosphorylation, which results in attenuated cap-dependent translation, but evidently, can increase translation of other proteins like Arc, BDNF, and, αCAMKII. (C) Possible mTOR pathway for translation regulation. mTOR can regulate eEF2 phosphorylation and, consequently, elongation by phosphorylation of S6K1 for example, which can then inhibit eEF2K activity by phosphorylation (different phosphorylation site from PKA), leading to decreased phospho-eEF2 levels and increased elongation rate.

eEF2 pathways regulate cellular protein translation

A new study exposes a new biological mechanism that, on the one hand, damages a very specific type of memory, but at the same time provides resistance to epilepsy. Research student Elham Taha from the laboratory of Prof. Kobi Rosenblum explains: “In both healthy and sick brains, the relationship between the activities of the nerve cells that cause the transfer of information and activities delaying the transmission of information is extremely important. We know that damage to this relationship forms the basis of various brain diseases, such as neuro-developmental diseases and epilepsy. The aim of our study was to isolate molecular components that serve the creation of long-term memories...

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Mouth Cancer Rates Soar over 20 years

oral cancer exam

With Oral Cancer, Early Detection Is Key

A new Cancer Research UK analysis reveals that rates of mouth (oral) cancer have jumped by 68% in the UK over the last 20 years. The figures – released during Mouth Cancer Action Month – reveal the cancer is on the rise for men and women, young and old, climbing from 8 to 13 cases per 100,000 people over the last two decades. For men under 50, the rate has jumped by 67% in the last 20 years – going up from around 340 cases to around 640 cases each year.

For men 50+ years, rates have increased by 59% climbing from around 2,100 cases to around 4,400 cases annually. Oral cancer is more common in men, but there have been similar increases women...

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Major Finding Identifies Nitrogen as Key Driver for Gut Health

Highlights • Gut microbes show a dichotomy in ecological strategy for access to nitrogen • Beneficial microbes are overrepresented in the endogenous N source guild • Diets that reduce availability of dietary N to microbes promote healthy aging • Diet impact on host-microbiome interaction can be simplified for modeling

Highlights • Gut microbes show a dichotomy in ecological strategy for access to nitrogen • Beneficial microbes are overrepresented in the endogenous N source guild • Diets that reduce availability of dietary N to microbes promote healthy aging • Diet impact on host-microbiome interaction can be simplified for modeling

Scientists are one step closer to understanding the link between different diet strategies and gut health, with new research presenting the first general principles for how diet impacts the microbiota. Researchers from the University of Sydney have found that the availability of intestinal nitrogen to microbes in the gut plays a key role in regulating interactions between gut microbes and their host animal.

“This research really lays the groundwork for future modellin...

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New Drug Limits and then Repairs Brain Damage in Stroke

Reparative Effects of Interleukin-1 Receptor Antagonist in Young And Aged/Co-Morbid Rodents After Cerebral Ischemia. Brain, Behavior, and Immunity, 2016; DOI: 10.1016/j.bbi.2016.11.013

Reparative Effects of Interleukin-1 Receptor Antagonist in Young And Aged/Co-Morbid Rodents After Cerebral Ischemia. Brain, Behavior, and Immunity, 2016; DOI: 10.1016/j.bbi.2016.11.013

A potential new drug reduces the number of brain cells destroyed by stroke and then helps to repair the damage. A reduction in blood flow to the brain caused by stroke is a major cause of death and disability, and there are few effective treatments. A team of scientists at The University of Manchester has now found that a potential new stroke drug not only works in rodents by limiting the death of existing brain cells but also by promoting neurogenesis.

This finding provides further support for the development of this anti-inflammatory drug, interleukin-1 receptor antagonist (IL-1Ra in short), as a new treat...

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