Protein intake and loss of proteostasis in the eldery

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Ageing is a process of declining bodily function and a major risk factor of chronic diseases. The declining bodily function in ageing can cause loss of proteostasis (protein homeostasis), which is a balance between protein synthesis, folding, modification and degradation. For the elderly, adequate protein intake is necessary to prevent sarcopenia, frailty, fracture and osteoporosis as well as reduced resistance to infection. However, increasing the protein intake can enhance the risk of oxidized protein formation, loss of proteostasis and degenerative disorder occurrence. On the other hand, several studies show that protein restriction would increase longevity. The aim of this review was to explain the importance of determining the right amount and composition of protein intake for the elderly. Oxidative stress and molecular mechanism of proteostasis loss in ageing cells as well as its suppression pathway by protein restriction are discussed in this review.

Original languageEnglish
Pages (from-to)30-39
Number of pages10
JournalUkrainian Biochemical Journal
Issue number1
Publication statusPublished - 2021


  • Ageing
  • Dietary proteins
  • MTOR
  • Oxidative stress
  • Proteostasis loss


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