Influence of glycemic control on zinc urinary excretion in patients with type 1 diabetes

Univ Fed Sao Paulo, EPM, Dept Prevent Med, BR-04023900 Sao Paulo, BrazilUniv Fed Sao Paulo, Div Endocrinol, BR-04023900 Sao Paulo, BrazilUniv Sao Paulo, Fac Pharmaceut Sci, Dept Food & Expt Nutr, Sao Paulo, BrazilUniv Fed Rio Grande Norte, Dept Publ Hlth & Nutr, BR-59072970 Natal, RN, BrazilUniv Fed Sao Paulo, EPM, Dept Prevent Med, BR-04023900 Sao Paulo, BrazilUniv Fed Sao Paulo, Div Endocrinol, BR-04023900 Sao Paulo, BrazilWeb of Scienc

Frequency of metabolic syndrome and associated factors in institutionalized elderly individuals

Marcia Cristina Sales,1 Larissa Praça Oliveira,2 Laura Camila Pereira Liberalino,3 Aline Tuane Oliveira Cunha,2 Sara Estefani Soares Sousa,4 Telma Maria Araujo Moura Lemos,5 Severina Carla Vieira Cunha Lima,6 Kenio Costa Lima,7 Karine Cavalcanti Mauricio Sena-Evangelista,6 Lucia Fatima Campos Pedrosa61Postgraduate Program of Health Sciences, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil; 2School of Nutrition, Potiguar University (Laureate International Universities), Natal, Rio Grande do Norte, Brazil; 3Department of Medicine, State University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil; 4Postgraduate Program of Nutrition, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil; 5Department of Clinical and Toxicological Analysis, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil; 6Department of Nutrition, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil; 7Department of Dentistry, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, BrazilIntroduction: Population aging generally accompanies an increase in chronic noncommunicable diseases, such as metabolic syndrome (MS). Nursing homes have provided a solution for the decreased ability of elderly individuals for self-care and familial difficulties in meeting the health care needs of elderly individuals.Purpose: The aim of the present study was to determine the frequency of MS and its associated factors in elderly individuals living in nursing homes.Patients and methods: This cross-sectional study was conducted with 202 institutionalized elderly individuals. MS was diagnosed according to the National Cholesterol Education Program – Adult Treatment Panel III criteria. Sociodemographic, clinical, and lifestyle factors were assessed to verify their association with MS by logistic regression.Results: The MS frequency was 29.2%. The most frequent MS components were low high-density lipoprotein cholesterol level (63.9%) and abdominal obesity (42.7%). Factors associated with MS were female sex (prevalence ratio [PR]=2.16; 95% CI, 1.04–4.49), age-adjusted institutionalization time >50% (PR=2.38, 95% CI, 1.46–3.88), and high concentrations of interleukin-6 (PR=2.01; 95% CI, 1.21–3.32) and tumor necrosis factor-α (PR=1.70; 95% CI, 1.05–2.77). Moreover, it was verified that the likelihood of having MS was 1.85-fold higher (95% CI, 1.11–3.10) in the group with a diet characterized by very high energy, very low fat, and high dietary fiber.Conclusion: The occurrence of MS in institutionalized elderly individuals was higher in females, and individuals with longer age-adjusted institutionalization time, higher concentrations of immunologic biomarkers, and a dietary intake consisting of higher energy and fiber and lower total fat. The results of the study are useful for guiding health care programs aimed at institutionalized elderly individuals.Keywords: chronic noncommunicable diseases, aging, nursing home, institutionalizatio

Efeitos da suplementação e da fortificação de alimentos sobre a biodisponibilidade de minerais Effects of supplementation and food fortification on mineral bioavailability

Estratégias de prevenção e combate a algumas deficiências nutricionais, como a anemia e a osteoporose, incluem a fortificação de alimentos e o uso de suplementação com minerais em populações de risco. Entretanto, interações com outros minerais podem ocorrer e comprometer o estado de saúde do indivíduo. Este artigo teve por objetivo rever algumas das interações que podem ocorrer entre minerais quando da suplementação ou fortificação de alimentos. A suplementação de cálcio parece estar relacionada a uma diminuição da absorção do zinco, fósforo e ferro. Por sua vez, o excesso de ferro pode comprometer a absorção e utilização do zinco, especialmente quando em formulações antianêmicas. Apesar dos resultados de alguns estudos serem controversos, a suplementação de minerais ou a fortificação de alimentos devem ser cuidadosas a fim de não ocasionar outras deficiências nutricionais.<br>Strategies for the prevention and control of some nutritional deficiencies, such as anemia and osteoporosis, include food fortification and the use of mineral supplements for at-risk populations. Nevertheless, interactions among minerals may occur and jeopardize the health status of subjects. The objective of this study was to review some possible interactions among minerals when supplementation and food fortification are used. Calcium supplements seem to be related to reduce zinc, phosphorus and iron absorption. In addition, iron excess can decrease zinc absorption and utilization, especially in antianemic formulas. Although several studies have shown controversial outcomes, mineral supplementation and food fortification must be carefully monitored, in order to avoid promoting other nutritional deficiencies