Table of Contents Table of Contents
Previous Page  62 / 290 Next Page
Information
Show Menu
Previous Page 62 / 290 Next Page
Page Background

individuals in Europe. The project will advance understanding by

bringing together longitudinal studies across cities in Europe to

unravel the causal pathways and multi-level interactions between the

urban environment and psychosocial and biological determinants of

mental health and cognitive function in older adults.

Expected Results:

The geriatric perspective within MINDMAP

stresses the importance of early detection of pre-clinical stages of

frailty, including mental aspects, as a core component of functional

competence among older persons. The Functional Ability Index

developed in the Longitudinal Urban Cohort Ageing Study will be

applied. Considering both resources and risk factors will enable the

identification of target groups for early prevention, and for clinical

interventions [1].

Key conclusions:

Knowledge will significantly contribute to future-

proof preventive strategies in urban settings favouring the mental

dimension of healthy ageing, the reduction of the negative impact of

mental disorders on co-morbidities, and maintaining cognitive ability

in old age.

Funding:

European Union, Horizon 2020 Programme (667661)

Reference

[1] Dapp U.

et al. BMC Geriatrics

2014;14:141.

P-105

From nature to the elderly: Salvia sclareoides as a source of

bioactive compounds against Alzheimer

s disease

C. Dias

1

, T. Jorge

1

, P. Madeira

1

, F. Marcelo

2

, J. Jimenez-Barbero

2

,

C. Airoldi

3

, F. Nicotra

3

, P. Davis

4

, R. Staniforth

4

, A.P. Rauter

1

.

1

CQB/DQB,

Faculdade de Ciências, Universidade de Lisboa, Portugal;

2

Centro de

Investigaciones Biológicas, CSIC, Madrid, Spain;

3

Department of

Biotechnology and Biosciences, University of Milano-Bicocca, Italy;

4

Department of Molecular Biology and Biotechnology, University of

Sheffield, Sheffield, UK

Alzheimer

s disease is one of the most common types of dementia

causing deep economic and social impacts. Salvia sclareoides is a non-

toxic iberian endemic plant that has been studied in our research

group targeting both cholinergic system and amyloid cascade [1]. Our

studies showed that S. sclareoides extracts are potent inhibitors

of acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) [1].

In order to recognize the compounds responsible for this activity,

STD-NMR experiments of the crude plant extracts were performed

and rosmarinic acid was found as the only explicit binder for AChE.

Furthermore, it was possible to give for the first time insights into

the 3D structure model of the rosmarinic acid-AChE complex, allowing

to propose a new binding site in AChE [2]. On the other hand,

S. sclareoides has also been studied in our group for its ability to

prevent amyloid fibril formation. Salvia extracts were able to

destabilize pre-formed cystatin B fibrils, and STD-NMR showed once

again that rosmarinic acid was the only explicit binder for A

β

1-42

peptide oligomers. Interestingly, caffeic acid, a smaller unit of

rosmarinic acid, revealed to retain the same activity in remodeling

A

β

oligomerization [3]. In addition, envisioning the bioavailability

enhancement of these products and the physico-chemical charac-

teristics of carbohydrates/amyloid interaction, a series of rosmarinic

glycosylated analogues is currently under development. Our work

demonstrates that S. sclareoides is a resourceful and promising plant

to act as a dual target nutraceutical towards neurodegenerative

diseases. Moreover, it can provide inspiration for further drug

development towards new disease modifying agents.

References

1. Rauter A. P., Branco I., Lopes R. G., Justino J., Silva F. V. M., Noronha

J., Cabrita E. J., Brouard I., Bermejo J.

Fitoterapia

, 78, 474, 2007.

2. Marcelo F., Dias C., Martins A., Madeira P. J., Jorge T., Florêncio

M. H., Cañada F. J., Cabrita E. J., Jimenez-Barbero J., Rauter A. P.

Chem. Eur. J.

19, 6641, 2013.

3. Airoldi C., Sironi E., Dias C., Marcelo F., Martins A., Rauter A. P.,

Nicotra F., Jimenez-Barbero J.

Chem. Asian J.

8, 596, 2013.

P-106

Progression of Alzheimer

s disease. A longitudinal, case control

study in Norwegian memory clinics

R.S. Eldholm

1

, K. Persson

2,3

, M.L. Barca

2,3

, A.-B. Knapskog

2,3

,

H. Kersten

2

, K. Engedal

2

, G. Selbæk

2,4

, I. Saltvedt

1

.

1

Department of

Neuroscience, Norwegian University of Science and Technology (NTNU),

Trondheim,

2

Norwegian National Advisory Unit on Ageing and Health,

Vestfold Hospital Trust, Tønsberg,

3

Department of Geriatric Medicine,

Memory Clinic, Oslo University Hospital, Oslo;

4

Research Centre for Old

Age Psychiatric Research, Innlandet Hospital Trust, Ottestad, Norway

Introduction:

The disease progression rate in Alzheimer

s disease

(AD) varies considerably between individuals. There is lack of evidence

of the underlying factors behind these differences. The overall aim of

this study is to examine factors of importance for disease progression

in AD.

Methods:

The Progression of Alzheimer

s Disease and Resource use

(PADR) study is a longitudinal case-control observational study

conducted in Norwegian memory clinics. A comprehensive assess-

ment was performed at baseline and follow up after 18

28 months.

Progression rate was measured by change in the Clinical Dementia

Rating Sum of Boxes (CDR-SB). Dementia and Alzheimer

s disease was

diagnosed according to the ICD-10 criteria and MCI according to the

Winblad criteria. Patients with amnestic MCI (aMCI) were counted as

AD patients for analyses.

Results:

The AD group (n = 282) consists of 105 patients with aMCI and

177 AD patients with dementia. Mean age was 73.3 (8.8) years, 50,5%

were females, they had 12.1 ± 3.7 years of education and baseline score

on MMSE 23.7 ± 4.4 points. The overall progression rate for the AD

patients in CDR-SB was 1.59 points/year (95% confidence interval [CI]:

1.38

1.80).

Key conclusions:

The progression rate we found is comparable to the

declinemeasured in similar studies. Later analysis in PADRwill focus at

associations between concomitant cardiovascular disease and vascu-

lar risk factors, depression, MRI findings, inflammation and drug use

and disease progression. The study will contribute to further knowl-

edge about factors influencing the progression rate.

P-107

Association between micronutrients and preserved cognitive

functions over a nine-year period in older adults: the Invecchiare In

Chianti study

M. Fedecostante

1

, S. Bandinelli

2

, P. Eusebi

3

, M. Colpo

2

, A. Cherubini

1

.

1

Italian National Research Center on Aging, Ancona,

2

Geriatric Unit, Local

Health Unit

Tuscany Centre (LHUTC), Florence,

3

Epidemiology

Department, Regional Health Authority of Umbria, Perugia, Italy

Introduction:

Evidence suggest that various micronutrients could

delay the onset of age-associated cognitive decline and dementia. Our

study aims at investigating the association between plasma levels of

specific micronutrients and cognitive health over a nine-year period in

a large sample of older adults enrolled in the InCHIANTI study.

Methods:

Longitudinal study of 1073 non-demented adults aged 65

years or older from the InChianti study. Cognitive health was defined

as an improvement, stability or a reduction of no more than 1 point in

the MMSE score. Mixed-effects regression models were used to

analyze the role of several factors in predicting negative outcomes. A

multinomial response was used in order to investigate factors

associated with cognitive stability by taking into account for mortality

as competing outcome.

Results:

Among multiple micronutrients evaluated, only plasma levels

of

α

-tocopherol (VitE) were associated with cognitive health when

adjusted for possible confounders such as gender, age, smoke, total

cholesterol, triglycerides, and for factors associated with cognitive

health in our analysis such as baseline MMSE, Parkinson

s disease,

ischemic heart disease, hip fracture (OR: 1.05, 95% CI: 1.01

1.09),

taking into account for mortality as competing outcome.

Poster presentations / European Geriatric Medicine 7S1 (2016) S29

S259

S56