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Scientists identify over 140,000 virus species in the human gut, half of which are new to science

sanger.ac.uk
  • An analysis of 28,000 gut microbiome samples from all around the world has yielded a database of 140,000 virus species - the Gut Phage Database.
  • Scientists used metagenomics, a DNA-sequencing method, to isolate the different viruses from their samples.
  • The resulting database will be an incredible resource for scientists studying bacteriophages, and how they influence our guts and overall health.

Gut health and mood genetically entwined

imb.uq.edu.au
  • World’s largest study (data from almost half a million people) of genes involved in stomach ulcers shows that ulcers are linked to depression.
  • Study author says he got the idea when he noticed that stomach issues often got reduced after people underwent psychotherapy or psychiatry.
  • The study explains why stomach ulcers and depression often go hand-in-hand in patients.
  • Overall, the study could help scientists provide gene-based risk scores to patients in order to prevent stomach ulcers.

Yale researchers develop injection to treat skin cancer

news.yale.edu
  • Experimental treatment for skin cancer is based on injecting polymer-based nanoparticles with chemotherapy stuff straight into tumors.
  • Turns out that nanoparticles are key, because when chemo is injected into tumors without nanoparticles, it’s much less effective.
  • Because of this, they can use more powerful chemo that won’t affect the whole body, but only affect the tumor, and get rid of it with one injection.
  • The creators of this treatment are seeking to commercialize it in collaboration with a bio-research startup.

Lack of sleep, stress can lead to symptoms resembling concussion

news.osu.edu
  • Up to 27% healthy college athletes with no history of concussion reported post-concussion syndrome symptoms in a study of 31,000 student athletes.
  • Lack of sleep, mental health problems and stress were the most important related factors.
  • Study authors were shocked, but one explanation for this is that the definition of post-concussion syndrome is too broad.
  • This might be a call for a more specific definition, as well as better mental health care for young athletes.

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