Search results for "ageing"

Slow-Ageing Diets

2019

Ageing is a complex, unavoidable phenomenon than cannot be exhaustively defined. However, it has been described as a process leading to death, characterized by a gradual decrease of the ability to adapt to stress, causing a decline in functional capacity. This event, marked by a progressive loss of physiological integrity of many interrelated systems, determines an increased risk of morbidity and mortality (Avery et al. 2014). With increase of the proportion of older adults worldwide (United Nations 2017), it is necessary to carry out prevention policy for a healthy ageing (HA). Good nutrition plays a significant role in determining the well-being of older people, and in delaying and reduci…

Age-related Diseases: Key Role of Insulin Resistance for the Association Between Type II Diabetes and Alzheimer’s Disease

2012

Background: Alzheimer’s disease (AD) and Type 2 diabetes mellitus (T2DM) present many relationships. Insulin resistance (IR) plays a key role in neuronal degeneration and death. Reduced energy makes neurons more sensible to oxidation causing mitochondrial damages. Moreover AD brain has lower insulin utilization, reduced expression of its receptors and of IGF 1 and 2, all necessary for neuronal survival and learning and memory processes. Hyperinsulinemia is correlated with increase of hyerphosphorilated tau-protein. SHIP2, a phosphatase, is an antagonist of PI3K. Since the PI3K plays a key role in the biological effects of insulin, its attenuation could be associated with IR in T2DM. Methods…

Diet and Immunosenescence

2013

Ageing is a systemic condition leading to a gradual loss of molecular and cellular fidelity. A feature of ageing is immunosenescence, consisting in several modifications that increase morbidity and mortality in elderly. Environment, genetic background, immune system, and intestinal microbiota play a fundamental role in immunosenescence. The development of a chronic, low-grade, inflammatory status, known as “inflamm-ageing,” is a typical aspect of immunosenescence mostly due to the pro-inflammatory cytokine production linked to the chronic antigenic load. Nutrition can act on ageing, immunity, and health in general. Unbalanced diet with an insufficient intake of micro- and macronutrient and …

What olive oil for healthy ageing

2015

The olive tree originated in Asia Minor around 6000 years ago and then spread to all the Mediterranean basin. Olive oil is extracted from the pulp of its fruits [1–3]. Many studies show that the nutritional pattern of the so-called Mediterranean Diet is associated with a lower incidence of age-related diseases related to inflammation and oxidative stress, such as cardiovascular disease, Parkinson's disease, Alzheimer's disease and cancer [4–7]. It is now clear that olive oil, as a main source of fat, must play a key role in explaining the health benefits of the Mediterranean Diet.

Phenotypic Aspects of Longevity

2019

Centenarians are individuals who live over the average life span characteristic of their population. The growing number of old people worldwide makes it necessary to identify a good strategy to reach healthy ageing and avoid or delay age-related diseases. The longevity phenotype is the result of a positive combination between genetic, epigenetic, stochastic and lifestyle factors. So, the analysis of all the known parameters that can influence these single elements or their interaction can give new possible elements to delineate a sort of longevity signature. Starting from the easiest biomarkers as the haematochemical values and reaching the study of molecular and cellular components, as the…

Insulin pathway and its correlation with ageing and longevity

2014

Ageing is unavoidable and leads to the reduction of the ability to adapt to the environment, involving the organism at all levels. Approximately 25% of the overall variation in human lifespan can be attributed to genetic factors, which become more relevant for extreme longevity. A “favourable” genetic background is essential to live longer. Longevity depends on the survival after reproduction and genes that lead to longevity are “survival genes” rather than “longevity genes”. But human population is very heterogeneous because of the different genetic background and different environmental stimuli thus it has not been yet possible to identify a clear panel of biomarkers of ageing and longevi…

Biomarkers and Inflammatory Network in Aging: Targets for Therapies

2013

STATO NUTRIZIONALE E ABITUDINI ALIMENTARI NELLA POPOLAZIONE SICILIANA ULTRASESSANTACINQUENNE. SISTEMA DI SORVEGLIANZA PASSI D’ARGENTO

2015

In Italia l’aumento costante del numero degli anziani è una realtà correlata al miglioramento delle condizioni di vita. Ma ciò porta con sé anche un carico economico e sociale importante in relazione all’aumento delle malattie cronico-degenerative. Per tale motivo l’Organizzazione Mondiale della Sanità ha messo a punto una linea strategica denominata “active ageing” al fine di rafforzare le condizioni per un “invecchiamento attivo” le cui basi sono da costruire ben prima dell’età anziana. L’alimentazione è un cardine imprescindibile nel determinismo dell’invecchiamento di successo.

Declines in Sexual Activity and Function Predict Incident Health Problems in Older Adults: Prospective Findings from the English Longitudinal Study o…

2020

The objective of this study was to investigate cross-sectional and longitudinal associations between declines in sexual activity and function and health outcomes in a large population-based sample of older adults. Data were from 2577 men and 3195 women aged ≥ 50 years participating in the English Longitudinal Study of Ageing. Past-year changes in sexual desire, frequency of sexual activity, and ability to have an erection (men)/become sexually aroused (women) were assessed at baseline by self-completion questionnaire. Health outcomes (self-rated health, limiting long-standing illness, doctor-diagnosed diseases of the vascular system, and cancer) were self-reported at baseline (2012/2013) an…

Rethinking age in athletic retirement: An existential-narrative perspective

2015

The aim of this paper is to examine theoretical understandings of athletic career and career termination from an existential-narrative perspective. Our critical analysis suggests that career models and many research texts have an implicit understanding of sport as a profession and propose a normative end to the career when athletes no longer improve their results. Being framed by Western cultural narratives of ageing as decline, the aforementioned career models disregard athletes’ subjective careers and their agency in bringing meaning to experiences of ageing and decline in athletic performance. While the main focus of this paper is on theoretical analysis, some empirical findings from our…