Vitamin C status of institutionalized and non-institutionalized elderly in Central Kentucky

Barnes, Karen J.; Chen, Linda H.

doi:10.1016/0167-4943(90)90013-v

Cited by 2 publications

(5 citation statements)

References 17 publications

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“…The identified publications were categorised into age-related studies ( n = 19) [ 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 ], requirements-related studies ( n = 7) [ 22 , 26 , 35 , 36 , 37 , 38 , 39 ], and residence-related studies ( n = 11) [ 23 , 27 , 33 , 34 , 40 , 41 , 42 , 43 , 44 , 45 , 46 ], with a number of studies spanning multiple categories [ 22 , 23 , 26 , 27 , 33 , 34 ].…”

Section: Resultsmentioning

confidence: 99%

“…A number of studies have investigated the relationship of vitamin C relative to age in the old versus very old ( Table 1 ), with two showing decreased vitamin C status and increased prevalence of deficiency in those aged ≥80 years [ 30 , 32 ] and one reporting a similar trend in men aged >75 years, but not women [ 31 ]. In contrast, three smaller studies in Germany, the UK, and the USA showed no significant trends in vitamin C status or prevalence of deficiency with increasing ages, >60 or >65 years [ 29 , 33 , 34 ].…”

Section: Resultsmentioning

confidence: 99%

“…A number of studies, including the UK National Diet and Nutrition Survey, have investigated the impact of institutionalisation on vitamin C status and the prevalence of deficiency ( Table 3 ). In all cases, the participants who were institutionalised had dramatically lower vitamin C status and/or a higher prevalence of deficiency than non-institutionalised participants [ 23 , 33 , 40 , 41 , 42 , 43 , 45 ]; this was particularly apparent in older males in residential accommodation [ 44 ]. In the studies that reported dietary intakes, the institutionalised participants had much lower dietary intakes or a higher prevalence of inadequate intakes than the non-institutionalised participants [ 23 , 41 , 42 , 43 ].…”

Section: Resultsmentioning

confidence: 99%

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Does Aging Have an Impact on Vitamin C Status and Requirements? A Scoping Review of Comparative Studies of Aging and Institutionalisation

Carr

Zawari

2023

Nutrients

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The global healthcare burden of an aging population continues to increase, with nearly a quarter of the total global burden of disease attributable to people aged ≥60 years. Older people are at greater risk of micronutrient deficiencies, including immune-supportive vitamin C, which is both a contributor to and a consequence of acute and chronic illnesses. However, whether healthy aging, per se, is associated with depleted vitamin C status and increased requirements for the vitamin is less certain. A systematic scoping review was carried out to assess comparative studies that reported the vitamin C status and prevalence of deficiency in older versus younger people and in older people relative to residential status. Furthermore, vitamin C requirements were assessed through comparative studies reporting vitamin C status and pharmacokinetics in older people relative to younger people. Overall, there was limited evidence to suggest that healthy aging, per se, is related to lower vitamin C status or higher requirements for the vitamin. However, institutionalised elderly had lower vitamin C status and enhanced vitamin C requirements, primarily as a result of low intakes and/or chronic illnesses, which were not being met by hospital or residential diets. Because institutionalised elderly are vulnerable to malnutrition and micronutrient deficiencies, it is imperative that appropriate nutritional interventions are instigated to provide optimal micronutrient intake to support healthy aging.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Does Aging Have an Impact on Vitamin C Status and Requirements? A Scoping Review of Comparative Studies of Aging and Institutionalisation

Carr

Zawari

2023

Nutrients

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“…One of which is that the preoperative living conditions within the SG are less independent. Femur fracture patients more often live in a nursing home or in ambulatory care, which significantly limits their access to food and increases the risk of malnutrition [27] and AA deficiency [28]. Femur fracture patients within SG are significantly less self-sufficient than within CG 2.…”

Section: Ascorbic Acid Statusmentioning

confidence: 99%

“…This could lead to increased cell death and vast tissue damage [8,37]. Geriatric patients within the SG are more affected, as age impairs the antioxidant power of the organism [28], and thus, causes higher levels of oxidative stress.…”

Section: Ascorbic Acid Statusmentioning

confidence: 99%

Preoperative Ascorbic Acid Levels in Proximal Femur Fracture Patients Have No Postoperative Clinical Impact, While Ascorbic Acid Levels upon Discharge Have a Major Effect on Postoperative Outcome

Hill-Mündel

Schlegl²,

Biesalski

et al. 2019

JCM

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Proximal femur fractures show a high prevalence in elderly patients and are associated with an elevated risk of multimorbidity and early mortality. Recovery is impaired by malnutrition and oxidative stress, which is affected by antioxidants such as ascorbic acid (AA). This study monitored AA levels during hospitalization of patients with a proximal femur to investigate the influence of AA status to the clinical outcome. AA levels of 25 elderly patients with a proximal femur fracture were measured during hospitalization using high performance liquid chromatography. Plasma samples were collected preoperatively, on the first day after surgery, on the third day after surgery and on the day of discharge. Nutritional Risk Screening 2002 (NRS) and Mini Nutritional Assessment (MNA) were assessed to evaluate the nutritional status. In patients with proximal femoral fractures, preoperative AA concentrations were significantly lower compared to elderly patients without an acute fracture. A significant decrease of 33.8% in AA plasma level was measured on the day after surgery with a significant recovery up to the time of discharge. The preoperative AA status did not have any significant effect on clinical outcome. However, inadequate AA levels (<50 µmol/L) upon discharge significantly increased the incidence and the severity of postoperative complications. These results indicate that the AA status upon discharge has a greater impact on clinical outcome than assumed, and therefore, AA supplementation during hospitalization should be considered.

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Vitamin C status of institutionalized and non-institutionalized elderly in Central Kentucky

Cited by 2 publications

References 17 publications

Does Aging Have an Impact on Vitamin C Status and Requirements? A Scoping Review of Comparative Studies of Aging and Institutionalisation

Does Aging Have an Impact on Vitamin C Status and Requirements? A Scoping Review of Comparative Studies of Aging and Institutionalisation

Preoperative Ascorbic Acid Levels in Proximal Femur Fracture Patients Have No Postoperative Clinical Impact, While Ascorbic Acid Levels upon Discharge Have a Major Effect on Postoperative Outcome

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