The overweight and obese outpatients at higher risk of ambulatory treatment drop-out are more likely to work full hours, have less obesity-related complications and be less depressed. In our study, the full-time job condition seems to be the strongest predictor of premature withdrawal.
These body composition ranges can be used by clinicians and nutritionists as reference values for a Caucasian population in the Mediterranean area when evaluating body composition variations occurring in aging, malnutrition and chronic diseases.
Chronic obstructive pulmonary disease (COPD) is an important cause of morbidity and disability. Many studies have investigated factors influencing quality of life (QoL) in middle-aged COPD sufferers, but little attention has been given to elderly COPD. The aim of the present study was to investigate the impact of COPD on QoL and functional status in the elderly. Sixty COPD patients and 58 healthy controls over 65 years old were administered Pulmonary Function Tests, 6 min Walking Test (6MWD) for exercise tolerance, the Barthel Index and Mini Mental State Examination (MMSE) for functional status, the Geriatric Depression Scale (GDS) for mood, and the Saint George Respiratory Questionnaire (SGRQ) for QoL. FEV1 and PaO2 were reduced in COPD patients. Also the distance walked during 6MWD was significantly shorter for patients than controls (282.5 +/- 89.5 vs. 332.9 +/- 95.2 m; P < 0.01). Moreover, COPD patients had significantly worse outcomes for the Barthel Index, GDS and SGRQ. The logistic regression model demonstrated that a decrease in FEV1 is the factor most strictly related to the deterioration of QoL in COPD patients. Mood was also an independent factor influencing QoL. In conclusion, elderly COPD patients show a substantial impairment in QoL depending on the severity of airway obstruction; symptoms related to the disease may be exaggerated by mood deflection.
The intermediate and advanced stages of Alzheimer's disease (AD) are frequently associated with weight loss (WL), but WL may even precede the onset of cognitive symptoms. This review focuses on the possible aetiologic and temporal relationships between AD and WL. When WL occurs some years before any signs of cognitive impairment, it may be a risk factor for dementia due to deficiency of several micronutrients, such as vitamins and essential fatty acids, and consequent oxidative tissue damage. The leptin reduction associated with WL may also facilitate cognitive decline. The mechanisms potentially inducing WL in AD include lower energy intake, higher resting energy expenditure, exaggerated physical activity, or combinations of these factors. A hypermetabolic state has been observed in animals with AD, but has not been confirmed in human subjects. This latter mechanism could involve amyloid assemblies that apparently increase the circulating cytokine levels and proton leakage in mitochondria. WL may be caused by patients' increased physical activity as they develop abnormal motor behaviour (restlessness and agitation) and waste energy while trying to perform daily activities. During the course of AD, patients usually find it increasingly difficult to eat, so they ingest less food. AD-related neurodegeneration also affects brain regions involved in regulating appetite. The caregiver has an important role in ensuring an adequate food intake and controlling behavioural disturbances. In conclusion, WL is closely linked to AD, making periodic nutritional assessments and appropriate dietary measures important aspects of an AD patient's treatment.Weight loss: Alzheimer's disease: Dietary intake: Energy expenditure: Malnutrition Alzheimer's disease (AD) is the most common neurodegenerative disease of the brain, representing more than 50% of all dementia cases (1) . It is characterized by multiple cognitive deficits and progressive deterioration in functional performance, and leads to increasing disability and mortality. AD is frequently associated also with nutritional disorders and weight loss (WL), which is considered as one of the criteria for the clinical diagnosis of dementia (2) . The loss of body weight gives rise to loss of muscle mass and strength, and a greater risk of falls, functional dependence and worsening quality of life (3) . To prevent these negative consequences, it is important for clinicians to detect weight variations early and plan appropriate nutritional intervention.The majority of studies report that AD patients lose weight especially in the intermediate and advanced stages of the disease (4) , but some studies suggest that WL may start even several years before dementia sets in, and others indicate that it may occur just before the cognitive symptoms become manifest (5) . This variability in the onset of WL vis-à-vis the clinical signs of dementia, combined with the long latency period of AD, makes it difficult to ascertain the relationship between WL and AD. The question is not only whether WL ...
Preoperative treatment with the intragastric balloon reduced the risk of conversion to open surgery and the risk of intraoperative complications in super-obese patients treated with LAGB. Preoperative treatment with the intragastric balloon did not change the total weight loss after LAGB.
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