Lifestyle and normal hearing function in Italy and central Asia: The potential role of coffee

Dragana Vuckovic, Ginevra Biino, Francesco Panu, Mario Pirastu, Paolo Gasparini, Giorgia Girotto

Research output: Contribution to journalArticlepeer-review

Abstract

Background: Sound perception has a fundamental role of the auditory system and its absence causes hearing loss. It is well known that normal hearing function as well as the non-Mendelian forms of hearing impairment (i.e. age-related and noise-induced hearing loss) are considered to be due to both genetic and lifestyle/environmental factors. To date, few factors have been hypothesized as being related to normal hearing function and to age-related and noise-induced hearing loss. Method: We describe a broad study carried out on 4401 subjects from isolated populations (located from Italy to Central Asia) aimed at the identification of lifestyle/environmental factors (focused mainly on diet) that are potentially associated with normal hearing function (i.e. quantitative trait). Results: Our results show, for the first time, that among eight analysed variables (smoking, chocolate, coffee, tea, wine, beer, dairy products, spirits), only coffee consumption and coffee intake showed a significant association with better hearing function in four out of the 11 countries investigated. In particular, coffee consumption was associated over an audiometric profile from low (250, 500, 1000 Hz) to high (4000, 8000 Hz) frequencies: p-value = 0.006 in southern Italy, p-value = 0.017 in Azerbaijan, p-value = 0.016 in Tajikistan at low frequencies and p-value = 0.038 in Sardinia at high frequencies. With regard to intake, we detected an association only at high frequencies (2 cups/day, p-value = 0.01; 3 cups/day, p-value = 0.003). Conclusion: A possible explanation might be the antioxidant content of coffee, the concentration of which is higher than red wine or herbal teas. A possible additional reason could be a specific protective effect of active coffee compounds such as trigonelline. The findings provide a better knowledge of environment/lifestyle factors related to the hearing system and might help in defining new preventive strategies for hearing loss.

Original languageEnglish
Pages (from-to)218-223
Number of pages6
JournalHearing, Balance and Communication
Volume11
Issue number4
DOIs
Publication statusPublished - Dec 2013

Keywords

  • Coffee
  • Epidemiological studies
  • Isolated populations
  • Normal hearing function

ASJC Scopus subject areas

  • Speech and Hearing
  • Otorhinolaryngology

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