TLDR Old dogs' skin thins, loses hair, and may darken, but doesn't show some human aging signs.
The study conducted a histological examination of the skin from 14 aged dogs, revealing atrophy in the epidermis, appendages, and dermis, along with a decrease in hair number. Unlike humans, senile elastosis and dermal basophilia were not observed in dogs. Skin changes varied across different body regions. A notable feature in aged apocrine glands was the presence of yellow refractile granules in secretory cells, whose chemical composition was unknown but did not contain iron. Additionally, there could be a marked increase in dermal pigmentation.
100 citations
,
September 2017 in “Molecular and Cellular Endocrinology” Male hormones and their receptors play a key role in hair loss and skin health, with potential new treatments being explored.
5 citations
,
January 2019 in “Elsevier eBooks” Current therapies cannot fully regenerate adult skin without scars; more research is needed for scar-free healing.
10 citations
,
April 2016 in “Research and reports in transdermal drug delivery” Transfollicular drug delivery is promising but needs more research to improve and understand it better.
16 citations
,
December 2006 in “Expert Review of Dermatology” Hair follicles are essential for skin health, aiding in hair growth, wound healing, and immune function.
2 citations
,
January 2014 in “Springer eBooks” The book details skin conditions in older adults, their link to mental health, cancer treatment importance, hair loss remedies, and managing autoimmune and itchy skin.
