This research provides novel insights into the biological complexity of the Turin Shroud through metagenomic analysis of samples collected in 1978. The study identified multiple human mitochondrial DNA lineages, a diverse microbiome including skin-associated bacteria and halophilic archaea, and various fungi like molds and yeast. Traces of Mediterranean red coral, cultivated plants such as carrots and wheat, and domestic animals were also detected, reflecting historical environmental interactions. Furthermore, radiocarbon dating of specific linen threads is consistent with documented repair interventions carried out in 1534 and 1694 CE.
This study investigates how regular coffee consumption influences the microbiota–gut–brain axis in healthy adults. By comparing habitual drinkers with non-drinkers and observing effects during caffeine abstinence and reintroduction, researchers found that coffee significantly alters gut microbial composition and metabolite profiles.
The findings suggest that coffee impacts host physiology and cognitive functions through both caffeine-dependent and caffeine-independent mechanisms.
- Significant shifts in fecal microbiome composition, specifically increasing species like Cryptobacterium and Eggerthella.
- Changes in neuroactive metabolites such as GABA and indole-3-propionic acid.
- Behavioral observations showing coffee drinkers exhibit higher impulsivity and emotional reactivity, while non-drinkers show better memory performance.
- Evidence that decaffeinated coffee can still influence gut microbiota and improve sleep quality and physical activity.
- The identification of specific metabolites that link microbial changes to cognitive outcomes.
The findings suggest that coffee impacts host physiology and cognitive functions through both caffeine-dependent and caffeine-independent mechanisms.
- Significant shifts in fecal microbiome composition, specifically increasing species like Cryptobacterium and Eggerthella.
- Changes in neuroactive metabolites such as GABA and indole-3-propionic acid.
- Behavioral observations showing coffee drinkers exhibit higher impulsivity and emotional reactivity, while non-drinkers show better memory performance.
- Evidence that decaffeinated coffee can still influence gut microbiota and improve sleep quality and physical activity.
- The identification of specific metabolites that link microbial changes to cognitive outcomes.
