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Open AccessArticle

Interleukin-6 and Melatonin as Predictors of Cognitive, Emotional and Functional Ageing of Older People

1
Laboratory of Theory and Fundamentals of Nursing, Institute of Nursing and Midwifery, Faculty of Health Sciences, Jagiellonian University Medical College, ul. Michałowskiego 12, 31-126 Krakow, Poland
2
Department of Clinical Nursing, Institute of Nursing and Midwifery, Faculty of Health Sciences, Jagiellonian University Medical College, ul. Kopernika 25, 31-501 Krakow, Poland
3
Department of Medical Physiology, Faculty of Health Sciences, Jagiellonian University Medical College, ul. Michałowskiego 12, 31-126 Krakow, Poland
4
Department of Health Psychology, Institute of Nursing and Midwifery, Faculty of Health Sciences Jagiellonian University Medical College, ul. Kopernika 25, 31-501 Krakow, Poland
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2020, 17(10), 3623; https://doi.org/10.3390/ijerph17103623
Received: 21 April 2020 / Revised: 11 May 2020 / Accepted: 13 May 2020 / Published: 21 May 2020
Background: The ageing process causes a number of changes in the human immune and endocrine systems. The aim of this study was to assess the relationship between cognitive, emotional and functional skills as well lifestyle, versus selected biochemical indicators of the ageing process. Methods: The cross-sectional study was conducted in a group of 121 people aged 60–90 residing in the Lesser Poland voivodship. The study used standardized research tools including the Barthel scale, Instrumental Activities of Daily Living (IADL) scale, Mini-Mental State Examination (MMSE), Life Orientation Test (LOT-R) and inventory of health behaviors (IHB). In addition, the concentration of IL-6 and melatonin in the blood plasma was determined. Results: We determined the correlation between the level of IL-6 in a group of people over 75 years of age (requiring medical care), and results of the IADL scale. There was also a correlation between melatonin levels and the MMSE results in a group of people aged 60–75 who did not require constant medical care. Conclusions: IL-6 can be treated as a predictor of functional skills of people over 75 years of age, and melatonin can be perceived as a factor for recognizing cognitive impairment in elderly people who do not require constant medical assistance. View Full-Text
Keywords: melatonin; interleukin; ageing; functional skills; cognitive skills; emotional skills melatonin; interleukin; ageing; functional skills; cognitive skills; emotional skills
MDPI and ACS Style

Kurowska, A.; Bodys-Cupak, I.; Staszkiewicz, M.; Szklarczyk, J.; Zalewska-Puchała, J.; Kliś-Kalinowska, A.; Makara-Studzińska, M.; Majda, A. Interleukin-6 and Melatonin as Predictors of Cognitive, Emotional and Functional Ageing of Older People. Int. J. Environ. Res. Public Health 2020, 17, 3623.

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