INTRODUCTION mild cognitive impairment (MCI) has been characterized as a transitional stage between normal ageing and dementia. The aim of the present study was to examine differences between normal ageing and MCI in the performance of several cognitive tests. These differences might serve as differential markers. MATERIAL AND METHODS we performed a longitudinal study (24 months) with two eva...

BACKGROUND The Minho Integrative Neuroscience Database (MIND)-Ageing project aims to identify predictors of healthy cognitive ageing, including socio-demographic factors. In this exploratory analysis we sought to establish baseline cohorts for longitudinal assessment of age-related changes in cognition. METHODS The population sample (472 individuals) was strictly a convenient one, but similar...

BACKGROUND AND AIMS Despite differences in physiology between dry and relative moist seeds, seed ageing tests most often use a temperature and seed moisture level that are higher than during dry storage used in commercial practice and gene banks. This study aimed to test whether seed ageing under dry conditions can be accelerated by storing under high-pressure oxygen. methods: Dry barley (Horde...

In the present paper, the evolution of an oxidation process has been associated to the collective atomic arrangement, the microstructure one. This microstructural analysis encompasses a metallographic examination and a relation of electricity to chemical changes in salt-water solution. The electrochemical experimental techniques used include corrosion potential measurements. To seek a deeper un...

BACKGROUND Health literacy skills tend to decline during ageing, which is often attributed to age-related cognitive decline. Whether health literacy skills may be influenced by technological and social factors during ageing is unknown. METHODS We investigated whether internet use and social engagement protect against health literacy decline during ageing, independent of cognitive decline. We ...

background: aging has a growing trend in the world. the elderly experience a high incidence of hospitalization and coronary bypass surgery compared with other age groups, and pain is the most common complaint in these patients. this research was conducted to compare the effect of acupressure and cryotherapy on the pain of removing drain tube from the chest of the elderly who have undergone open...

background sleep apnea (sa) is a common sleep disorder among us adults. associations of sa with alcohol consumption and some chronic diseases have been inconsistent. objectives this study aimed to estimate prevalence of sa and examine its associations with potential factors including alcohol consumption, asthma, diabetes, and hypertension. patients and methods this was a cross-sectional study o...

In this experiment, wheat plants were exposed to drought stress during seed development then we worked on the obtained seeds. The seed mitochondrial ultra-structure, and antioxidant enzymes in seedling were investigated after exposure to seed accelerated ageing. Drought stress during seed development induced some changes in mitochondrial ultra-structure. Encountering seed development to drought...

Due to their widespread availability, sandstones are commonly used as a natural stone for buildings, monuments and sculptures. In thecurrent study, nine sandstone samples from the Upper Red Formation (specified by the letters A, B, C, CG, S, S1, Sh, Tr and Min)were studied from a petrophysical point of view and their durability was evaluated. Then, their suitability as building stones wasassess...

BACKGROUND Little is known about ageing-related changes in the brain that affect emergence from general anaesthesia. We used young adult and aged Fischer 344 rats to test the hypothesis that ageing delays emergence from general anaesthesia by increasing anaesthetic sensitivity in the brain. METHODS Time to emergence was determined for isoflurane (1.5 vol% for 45 min) and propofol (8 mg kg(-1)...