From: here@is.invalid   
      
   People’s skin microbiomes look alike under the surface   
      
   The bacterial microbiome of the skin’s outer layer, the epidermis, may   
   be unique to each person, but that’s not the case with the layer   
   below, the dermis.   
      
   A new study using skin samples from knees and hips finds the same   
   bacteria across age and sex in the dermis layer.   
      
   According to the researchers, this knowledge is important for   
   improving the understanding and treatment of skin disorders such as   
   childhood eczema and psoriasis.   
      
   “We found that the microbiome in epidermis is unique. It is very   
   different and depending on age and gender. On the other hand, the   
   microbiome in dermis is the same—regardless of age and gender. This   
   has not been shown before,” says coauthor Lene Bay, postdoctoral   
   researcher in the department of immunology and microbiology at the   
   University of Copenhagen.   
      
   The researchers got the samples from Danish patients who were having   
   knee surgery. All the operations were so-called primary operations,   
   that is, the patients were healthy and did not have an infection   
   beforehand.   
      
   “It is important that we drop the assumption that we are all   
   different, and that the microbiome of the skin does not matter very   
   much. We do know that bacteria play a major role in skin disorders.   
   Therefore, we need to understand the bacteria and the skin in its   
   three dimensions,” says coauthor Thomas Bjarnsholt, professor at the   
   department of immunology and microbiology.   
      
   https://www.futurity.org/dermis-skin-micriobiome-2279162-2/   
      
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