Nutrition & Ageing

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  • Created by: Becca
  • Created on: 22-12-13 22:43
What body composition changes happen with age?
Decreased bone density (increased risk of fractures). Increased adipose tissue mass (increased inflammatory state, insulin resistance, increased risk of CVD & type 2 diabetes). Decreased lean tissue mass (decreased basal metabolic rate, sarcopenia)
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What are the mechanisms underlying sarcopenia?
Inactivity/immobilisation, loss of spinal motor neurons, mitochondrial damage, imflammation, hormonal factors, undernutrition (lack of protein, nutrient insensitivity, vit D deficiency, physiological anorexia)
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What gastrointestinal changes happen with age?
Selective neuro-degeneration of enteric nervous system, impairment in relaxation of gastric fundus, decreased gastric motility/acid secretion (decreased absorption of protein, vitamins, folate, iron)/pancreatic enzyme secretion/lactase activity
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What neurological changes happen with age?
Brain atrophy, loss of sensory acuity
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What hepatic & renal changes happen with age?
Decreased liver size & blood flow (reduced bile production, reduced albumin synthesis). Decreased glomerular filtration rate
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What immune changes happen with age?
Poor wound healing (increasing protein intake can help), decreased T-cell function (increasing vitamin D can help)
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What dentition changes happen with age?
Salivary glands shrink, poor oral hygiene, lac of teeth or poorly fitting dentures
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What factors should be considered when assessing nutritional risk in older people?
Social factors, mental status, dentition/swallowing, presence of disease, financial status etc
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Card 2

Front

What are the mechanisms underlying sarcopenia?

Back

Inactivity/immobilisation, loss of spinal motor neurons, mitochondrial damage, imflammation, hormonal factors, undernutrition (lack of protein, nutrient insensitivity, vit D deficiency, physiological anorexia)

Card 3

Front

What gastrointestinal changes happen with age?

Back

Preview of the front of card 3

Card 4

Front

What neurological changes happen with age?

Back

Preview of the front of card 4

Card 5

Front

What hepatic & renal changes happen with age?

Back

Preview of the front of card 5
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