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1.
Appetite ; 166: 105465, 2021 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-34146648

RESUMO

Foods of low nutritional quality are heavily marketed to children, and exposure to food ads shapes children's preferences and intake towards advertised foods. Whether food ad exposure independently relates to an overall lower diet quality among children remains unclear. We examined the association between ad-supported media use, a proxy for food ad exposure, and diet quality using the baseline data (2014-2015) from 535 3-5-year-olds in a community-based cohort study. Parents reported their child's dietary intake over 3 days via a diary, and diet quality was assessed with the Healthy Eating Index (HEI-2015) where higher scores reflect greater adherence to USDA dietary guidelines. Children's media exposure was measured through online parent surveys. Mean HEI score was 54.5 (SD = 9.4). In models adjusted for sociodemographic characteristics and metrics of parent diet quality, children's HEI scores were 0.5 points lower (adjusted beta = -0.5 [95% CI: 0.8, -0.1]; P < 0.01) for each 1-h increment in weekly viewing of ad-supported children's TV networks. Children's use of media that may have food ads (e.g., apps, online games) also related to a lower diet quality yet to a lesser extent (adjusted beta -0.2 [-0.2, -0.1]; P < 0.01). In contrast, children's ad-free media use was not associated with diet quality (P = 0.21). Findings support the premise that exposure to food advertisements via media may result in a lower quality diet among children independently of other risk factors.


Assuntos
Publicidade , Dieta , Criança , Pré-Escolar , Estudos de Coortes , Dieta Saudável , Ingestão de Alimentos , Humanos
2.
J Acquir Immune Defic Syndr ; 81(3): 336-344, 2019 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-31021992

RESUMO

BACKGROUND: Vitamin D status in pregnancy may influence the risk of prematurity, birth size, and child postnatal growth, but few studies have examined the relationship among pregnant women living with HIV. METHODS: We conducted a prospective cohort study of 257 HIV-infected mothers and their HIV-exposed uninfected infants who were enrolled in the 2009-2011 nutrition substudy of the Surveillance Monitoring for ART Toxicities (SMARTT) study. HIV-infected pregnant women had serum 25-hydroxyvitamin D (25(OH)D) assessed in the third trimester of pregnancy, and their infants' growth and neurodevelopment were evaluated at birth and approximately 1 year of age. RESULTS: The mean third trimester serum 25(OH)D concentration was 35.4 ± 14.2 ng/mL with 15% of women classified as vitamin D deficient (<20 ng/mL) and 21% as insufficient (20-30 ng/mL). In multivariable models, third trimester vitamin D deficiency and insufficiency were associated with -273 g [95% confidence interval (CI): -450 to -97] and -203 g (95% CI: -370 to -35) lower birth weights compared with vitamin D sufficient women, respectively. Maternal vitamin D deficiency was also associated with shorter gestation (mean difference -0.65 weeks; 95% CI: -1.22 to -0.08) and lower infant length-for-age z-scores at 1 year of age (mean difference: -0.65; 95% CI: -1.18 to -0.13). We found no association of vitamin D status with infant neurodevelopment at 1 year of age. CONCLUSION: Third trimester maternal vitamin D deficiency was associated with lower birth weight, shorter length of gestation, and reduced infant linear growth. Studies and trials of vitamin D supplementation in pregnancy for women living with HIV are warranted.


Assuntos
Desenvolvimento Infantil , Infecções por HIV/complicações , Terceiro Trimestre da Gravidez , Deficiência de Vitamina D/complicações , Adulto , Desenvolvimento Infantil/fisiologia , Feminino , Infecções por HIV/sangue , Humanos , Lactente , Recém-Nascido , Gravidez , Complicações Infecciosas na Gravidez , Resultado da Gravidez , Terceiro Trimestre da Gravidez/sangue , Terceiro Trimestre da Gravidez/fisiologia , Estados Unidos , Vitamina D/sangue , Deficiência de Vitamina D/sangue , Adulto Jovem
3.
AIDS ; 33(3): 509-514, 2019 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-30702519

RESUMO

OBJECTIVE: To quantify total sialic acid in milk from HIV-positive Tanzanian mothers and to determine the impact of maternal diet on milk sialic acid levels. DESIGN: Milk samples were analyzed from 74 HIV-positive, Tanzanian women enrolled in a randomized, controlled clinical study of a dietary macronutrient supplement. Women were provided with a daily protein-calorie supplement and a micronutrient supplement or micronutrient supplement only during the last trimester of pregnancy and up to the first 6 months of breastfeeding. METHODS: Milk samples were collected at approximately 2 weeks and at least 3 months postpartum and assayed for total sialic acid. Milk sialic acid was assessed relative to maternal macronutrient intake, age, BMI, CD4+ cell count and infant birth weight. RESULTS: The mean concentration of milk sialic acid was highest in the first 2 weeks postpartum (6.89 ±â€Š2.79 mmol/l) and declined rapidly by 3 months (2.49 ±â€Š0.60 mmol/l). Sialic acid content in milk was similar between both treatment arms of the study, and did not correlate with maternal macronutrient intake. No correlation was found between maternal age, BMI, CD4+ cell count or infant birth weight and total milk sialic acid concentration. CONCLUSION: Milk sialic acid levels in HIV-positive, Tanzanian women without malnutrition are comparable with reported values for women of European descent and show a similar temporal decline during early lactation. These findings suggest that total milk sialic acid is maintained despite macronutrient deficiencies in maternal diet and support a conserved role for milk sialic acid in neonatal development.


Assuntos
Dieta/métodos , Infecções por HIV/patologia , Leite Humano/química , Ácido N-Acetilneuramínico/análise , Adulto , Índice de Massa Corporal , Contagem de Linfócito CD4 , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Tanzânia
4.
Int J MCH AIDS ; 2(2): 220-8, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-27621976

RESUMO

BACKGROUND: Poor nutrition has been associated with impaired immunity and accelerated disease progression in HIV-infected children. The aim of this study was to quantify the levels of nutrient intake in HIV-infected children and compare these to standard recommendations. METHODS: We surveyed HIV-infected Tanzanian children enrolled in a pediatric care program that provided routine nutritional counseling and vitamin supplementation. We obtained anthropometric measurements and determined 24-hour macronutrient and micronutrient intakes and food insecurity. Values were compared to recommended nutrient intakes based on age and gender. RESULTS: We interviewed 48 pairs of children and their caregiver(s). The age of the child ranged from 2-14 years; median age 6 and 60% female. The median weight-for-height z-score for children ≤ 5 years was 0.69 and BMI-for-age z-scores for children >5 was -0.84. Macronutrient evaluation showed that 29 (60%) children were deficient in dietary intake of energy; deficiency was more common in older children (p=0.004). Micronutrient evaluation shows that over half of study subjects were deficient in dietary intake of vitamin A, vitamin D, vitamin E, thiamine, riboflavin, niacin, folate, vitamin B12, and calcium. Food insecurity was reported by 20 (58%) caregivers. CONCLUSIONS AND PUBLIC HEALTH IMPLICATIONS: The diets of many HIV-infected children at a specialized treatment center in Tanzania do not meet recommended levels of macro-and micro-nutrients. Food insecurity was a contributory factor. Enhanced dietary counseling and provision of macro- and micro-nutrient supplements will be necessary to achieve optimal nutrition for most HIV-infected children in resource-poor regions.

5.
Public Health Nutr ; 16(4): 721-9, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22974548

RESUMO

OBJECTIVE: Formative research to facilitate the development, packaging and delivery of a culturally acceptable nutrition intervention for HIV-infected women in rural Kenya for an intervention trial. DESIGN: Focus group discussion on three areas: (i) ingredients and form of the nutrition intervention, (ii) packaging and delivery and (iii) monitoring of adherence. Two single-blind taste tests with eleven different porridge formulations of various combinations of maize flour, soyabeans, peanuts, sorghum, mung beans, dried fish, raisins and dried whole milk. Follow-up acceptability focus group discussion was also conducted. SETTING: Voi, Kenya, community based. SUBJECTS: Focus group discussion and two taste tests (twenty-one women aged 16-55 years). Follow-up acceptability focus group discussion (four women enrolled in intervention trial). RESULTS: The preferred porridge for taste consisted of maize, soyabeans and peanuts. For animal protein, dried whole milk and dried fish were used. Although the women disliked the taste of dried fish, it was acceptable if added in small undetectable quantities. Sugar over lime was favoured for taste. Women believed they could consume at least two cups of porridge per day without displacing their usual meals. The optimal delivery interval was believed to be every two weeks in individual serving packages. Women who had been consuming porridge for several weeks felt the taste was acceptable for long-term consumption. CONCLUSIONS: This formative research resulted in the development, packaging and delivery of a nutrient-dense food supplement using local ingredients to meet the dietary needs of the population and acceptable for daily consumption by women in Kenya for evaluation in an intervention trial.


Assuntos
Suplementos Nutricionais , Comportamento Alimentar , Infecções por HIV/dietoterapia , População Rural , Adolescente , Adulto , Animais , Arachis , Índice de Massa Corporal , Dieta , Gorduras na Dieta/administração & dosagem , Proteínas Alimentares/administração & dosagem , Grão Comestível , Ingestão de Energia , Estudos de Avaliação como Assunto , Feminino , Farinha , Grupos Focais , Seguimentos , Embalagem de Alimentos/métodos , Preferências Alimentares , Serviços de Alimentação , Humanos , Quênia , Carne , Micronutrientes/administração & dosagem , Pessoa de Meia-Idade , Leite , Cooperação do Paciente , Método Simples-Cego , Glycine max , Inquéritos e Questionários , Paladar , Adulto Jovem , Zea mays
6.
Atten Defic Hyperact Disord ; 4(4): 189-97, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22886756

RESUMO

Most studies of attention-deficit hyperactivity disorder (ADHD) youth have obtained data from the perspective of either children or parents, but not both simultaneously. The purpose of this study was to examine child and parent perspectives on parenting in a large community-based sample of children with and without ADHD. We identified children in grades 4-6 and their parents through surveys administered to a random sample of public schools. We used multivariable logistic regression to determine independent associations between child and parent characteristics and the presence of ADHD while controlling for covariates and clustering by school. Sufficient data were achieved for 2,509 child/parent dyads. Ten percent of youths (n = 240) had been diagnosed with ADHD. Compared with those without ADHD, those with ADHD were more commonly male (67.9 vs. 48.0 %, p < .001) and age 12 or over (16.3 vs. 10.3 %). After adjusting for covariates and clustering, compared to children without ADHD, children with ADHD were significantly more likely to report lower self-regulation (OR = 0.68, 95 % CI = 0.53, 0.88) and higher levels of rebelliousness (OR = 2.00, 95 % CI = 1.52, 2.69). Compared with parents whose children did not have ADHD, parents of children with ADHD rated their overall parental efficacy substantially lower (OR = 0.23, 95 % CI = 0.15, 0.33). However, child assessment of parenting style was similar by ADHD. Despite the internal challenges community-based youth with ADHD face, many parents of ADHD youth exhibit valuable parental skills from the perspective of their children. Feedback of this information to parents may improve parental self-efficacy, which is known to be positively associated with improved ADHD outcomes.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/psicologia , Comportamento Infantil/psicologia , Poder Familiar/psicologia , Adolescente , Adulto , Criança , Escolaridade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Relações Pais-Filho , Autoimagem , Controles Informais da Sociedade , Inquéritos e Questionários
7.
J Womens Health (Larchmt) ; 19(12): 2197-202, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20973674

RESUMO

BACKGROUND: The purpose of this study was to identify and determine the influence of perceived intrinsic barriers to physical activity among mothers living in rural areas. METHODS: Mothers were identified through a study of child-parent dyads in the predominantly rural states of New Hampshire and Vermont. Using a telephone interview, we asked mothers (n = 1691) about their level of physical activity and assessed eight potential barriers to physical activity. Data were analyzed using chi-square tests, t tests, and analysis of variance (ANOVA) comparisons for groups within each variable. We used multiple regression analysis to assess associations between perceived barriers to physical activity and self-reported levels of physical activity. RESULTS: Each barrier was inversely associated with physical activity. Multivariate models that included terms for all potential barriers and covariates identified three barriers associated with lower levels of physical activity: lack of self-discipline, lack of time, and lack of interest. CONCLUSIONS: Rural mothers are less likely to be physically active if they identify lack of self-discipline, time, or interest as barriers, suggesting that they have difficulty prioritizing exercise for themselves. Interventions aimed at increasing physical activity for mothers should specifically consider these barriers. One possible solution may be to support infrastructure that facilitates active living as the default option, to remove the issue of having to purposefully engage in physical activity as a separate aspect of a mother's life.


Assuntos
Exercício Físico/psicologia , Comportamentos Relacionados com a Saúde , Mães/psicologia , População Rural/estatística & dados numéricos , Adulto , Análise de Variância , Distribuição de Qui-Quadrado , Feminino , Humanos , Pessoa de Meia-Idade , Mães/estatística & dados numéricos , New Hampshire , Análise de Regressão , Fatores Socioeconômicos , Inquéritos e Questionários , Fatores de Tempo , Vermont , Adulto Jovem
8.
J Am Coll Nutr ; 29(2): 136-43, 2010 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-20679149

RESUMO

OBJECTIVE: The purpose of this paper is to highlight disparities between injection drug users (IDUs) and those who had never been IDUs from the Nutrition for Healthy Living (NFHL) cohort. Although IDUs were enrolled in the cohort throughout its duration, few analyses have sought to highlight findings specific to them. METHODS: NFHL, a prospective, longitudinal cohort conducted from 1995-2005, included 881 human immunodeficiency virus (HIV) -infected men and women over the age of 18. Subjects were seen every 6 months; body composition and dietary and laboratory data were collected. Individuals were classified as current IDUs, past IDUs, and never-IDUs. The classification of ever-IDU combined current and past users. RESULTS: In NFHL, a higher proportion of ever-IDUs were women, African American, had a high school education or less, smoked, and were housing insecure and food insecure compared to never-IDUs. Ever-IDUs had lower total, soluble, and insoluble fiber and individual micronutrient intakes. A higher proportion of ever-IDUs had hepatitis C and HIV-related symptoms, used highly active antiretroviral therapy (HAART) less, and had a CD4 count <500 cells/mm3, than never-IDUs, at the study endpoint. CONCLUSIONS: The course of HIV infection in past and current IDUs appears to be unique and requires more investigation. Physiologic and sociodemographic characteristics of IDUs contribute to poor disease management and nutritional status. Classic manifestations of HIV persist in IDUs in the HAART era.


Assuntos
Fibras na Dieta/administração & dosagem , Infecções por HIV/complicações , Hepatite C/complicações , Micronutrientes/administração & dosagem , Avaliação Nutricional , Abuso de Substâncias por Via Intravenosa/complicações , Adulto , Antirretrovirais/uso terapêutico , Antígenos CD4 , Estudos de Coortes , Usuários de Drogas , Feminino , HIV , Infecções por HIV/tratamento farmacológico , Infecções por HIV/imunologia , Hepatite C/imunologia , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Fumar/epidemiologia , Fatores Socioeconômicos , Abuso de Substâncias por Via Intravenosa/imunologia
9.
Nutr Rev ; 68(7): 429-35, 2010 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-20591110

RESUMO

Undernutrition is a major contributor to child mortality and total global disease burden. Ready-to-use therapeutic food (RUTF) is recommended by the World Health Organization for community-based management of uncomplicated forms of severe acute malnutrition. New research has evaluated the role of RUTF for the prevention of childhood undernutrition. While studies have found some benefit, similar results have been seen with supplemental food aid and controversy over the role for RUTF in prevention efforts continues. For the prevention of childhood malnutrition, the following questions remain critical: Who should receive a specific nutrition intervention? What composition and form should the intervention take? And, when should the intervention be delivered?


Assuntos
Transtornos da Nutrição Infantil/dietoterapia , Transtornos da Nutrição Infantil/prevenção & controle , Fast Foods/análise , Alimentos Especializados/análise , Transtornos da Nutrição do Lactente/dietoterapia , Transtornos da Nutrição do Lactente/prevenção & controle , Criança , Pré-Escolar , Fast Foods/economia , Serviços de Alimentação/economia , Alimentos Fortificados/análise , Alimentos Fortificados/economia , Alimentos Especializados/economia , Humanos , Lactente , Alimentos Infantis/análise , Alimentos Infantis/economia
10.
Am J Clin Nutr ; 90(6): 1566-78, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19846544

RESUMO

BACKGROUND: Elevated serum triglyceride and low HDL-cholesterol concentrations have been reported in persons with HIV. OBJECTIVE: The effect of a dietary intervention plus n-3 (omega-3) fatty acid supplementation on serum triglycerides and markers of insulin sensitivity was investigated. DESIGN: Fifty-four persons with HIV and elevated serum triglycerides (>150 mg/dL) and/or abnormal Quantitative Insulin Sensitivity Check Index values (<0.35 but >0.30) were recruited for a dietary intervention in which total fat, type of fat, fiber, and glycemic load were controlled along with supplementation with n-3 fatty acids to achieve an intake of 6 g/d. The subjects were randomly assigned to an intervention or control group, and serum lipids, markers of insulin sensitivity, and serum phospholipid fatty acids were measured in both groups at baseline, 3 wk, and 13 wk. RESULTS: Triglycerides in the intervention group decreased from a median of 180 mg/dL (interquartile range: 141, 396) to 114 mg/dL (interquartile range: 84, 169) from baseline to 3 wk, whereas they remained stable in the control group (P = 0.003). Serum phospholipid fatty acids indicated a decrease in de novo lipogenesis and a decrease in arachidonic acid (% nmol; P

Assuntos
Ácidos Graxos Ômega-3/administração & dosagem , Infecções por HIV/metabolismo , Triglicerídeos/sangue , Adulto , Ácido Araquidônico/sangue , Área Sob a Curva , Índice de Massa Corporal , HDL-Colesterol/sangue , Suplementos Nutricionais , Feminino , Humanos , Resistência à Insulina , Masculino , Pessoa de Meia-Idade , Fosfolipídeos/sangue
11.
Am J Clin Nutr ; 89(4): 1180-7, 2009 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-19244367

RESUMO

BACKGROUND: HIV infection and its treatment are associated with abnormal lipid profiles. High triglyceride concentrations and low HDL-cholesterol concentrations are the most common health abnormalities and raise concerns about an increased risk of cardiovascular disease. OBJECTIVE: We compared the fatty acid patterns of serum phospholipids between persons with HIV and non-HIV controls to determine whether there are differences that explain the elevated triglyceride concentrations, insulin resistance, and inflammation that are part of the metabolic syndrome in patients with HIV. DESIGN: Thirty-nine persons with HIV and elevated serum triglycerides (>150 mg/dL) and/or indicators of insulin resistance were recruited to examine fatty acid profiles in serum phospholipid fractions relative to those of 2 control groups without HIV (n = 31). RESULTS: Higher concentrations of 16:1 and 18:0 fatty acids in the phospholipid fraction indicated increased lipogenesis in the HIV patients and in the non-HIV controls at risk of the metabolic syndrome. However, the subjects with HIV had higher concentrations of both n-6 (omega-6) and n-3 fatty acids of higher elongation and desaturation levels, which indicated a greater promotion of these pathways in this population. The nanomolar percentage (%nmol) arachidonic acid was the same in all 3 groups. CONCLUSIONS: Persons with and without HIV, at risk of the metabolic syndrome, show indications of increased lipogenesis, more so in subjects with HIV taking medication. Higher proportions of distal elongation and desaturation fatty acid products were seen only in the phospholipids fatty acid fraction of the subjects with HIV.


Assuntos
Fármacos Anti-HIV/efeitos adversos , Ácidos Graxos/sangue , Infecções por HIV/sangue , Hipertrigliceridemia/sangue , Síndrome Metabólica/sangue , Fosfolipídeos/química , Fármacos Anti-HIV/uso terapêutico , Estudos de Casos e Controles , Feminino , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , Humanos , Lipodistrofia/sangue , Lipodistrofia/induzido quimicamente , Lipodistrofia/complicações , Masculino , Pessoa de Meia-Idade , Triglicerídeos/sangue
12.
Am J Clin Nutr ; 88(6): 1584-92, 2008 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19064519

RESUMO

BACKGROUND: Nutritional status is an important determinant of HIV outcomes. OBJECTIVE: We assessed the association between dietary patterns identified by cluster analysis and change in body mass index (BMI; in kg/m(2)), CD4 count, and viral load (VL). DESIGN: HIV-positive adult male subjects (n = 348) with a BMI >or= 20.5 were evaluated by biochemical, body composition, and dietary data. Cluster analysis was performed on 41 designated food groups derived from 3-d food records. Dietary clusters were compared for sociodemographic, nutrient intake, and clinical outcomes. Multivariate linear regression assessed associations between dietary clusters and change in BMI, CD4 count, and VL. RESULTS: We observed 3 dietary patterns: juice and soda; fast food and fruit drinks; and fruit, vegetable, and low-fat dairy. Subjects in the fast food and fruit drinks pattern had the lowest fiber intake, highest VL, and lowest CD4 count and had a lower income than did subjects in the other 2 clusters. Subjects in the fruit, vegetable, and low-fat dairy diet pattern had higher intakes of protein, fiber, and micronutrients and the highest BMI and CD4 count. Subjects in the juice and soda pattern had higher energy intakes and lowest BMI. On average, the fast food and fruit drinks cluster and fruit, vegetable, and low-fat dairy cluster gained 0.33 (P = 0.06) and 0.42 (P = 0.02), respectively, more in BMI than the juice and soda cluster across the study interval in a multivariate model. CONCLUSIONS: In a cohort of HIV-positive men, we identified 3 distinct dietary patterns; each pattern was associated with specific nutrition, demographic, and HIV-related variables.


Assuntos
Índice de Massa Corporal , Dieta/estatística & dados numéricos , Infecções por HIV/mortalidade , Estado Nutricional , Carga Viral , Adulto , Terapia Antirretroviral de Alta Atividade , Contagem de Linfócito CD4 , Análise por Conglomerados , Estudos de Coortes , Laticínios , Dieta/psicologia , Dieta/tendências , Gorduras na Dieta/administração & dosagem , Frutas , Infecções por HIV/tratamento farmacológico , Infecções por HIV/imunologia , Infecções por HIV/patologia , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Prognóstico , Verduras
13.
AIDS Read ; 17(4): 211-6, 223-7, 2007 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-17479507

RESUMO

Dietary supplement use was assessed in 368 HIV-infected patients enrolled in the Nutrition for Healthy Living cohort. The objective was to describe the dietary, demographic, and health characteristics of the HIV-infected persons who use different types of dietary supplements. Each patient was categorized in 1 of 4 dietary supplement groups. Extremes in intake of micronutrients were common. Men and women who consumed no supplements reported inadequate intakes of a number of micronutrients. Men using nonvitamin/nonmineral (NVNM) supplements had diets higher in fiber, protein, and 13 of 14 vitamins and minerals. Almost 90% of male NVNM supplement users ingested 1 or more vitamins or minerals in amounts above the tolerable upper limit. Male NVNM supplement users were more likely to be white, well educated, and receiving highly active antiretroviral therapy and more likely to have higher annual incomes, higher CD4 counts, and lower HIV RNA levels. HIV-infected women who were using NVNM supplements exhibited similar trends. Micronutrient inadequacy and excess are relatively common in persons living with HIV infection. Practitioners need to judiciously address optimal nutrient intake from both diet and dietary supplements in this population.


Assuntos
Suplementos Nutricionais/estatística & dados numéricos , Infecções por HIV , Adulto , Contagem de Linfócito CD4 , Estudos de Coortes , Estudos Transversais , Demografia , Feminino , Humanos , Estudos Longitudinais , Masculino , Massachusetts/epidemiologia , Micronutrientes/deficiência , Pessoa de Meia-Idade , Necessidades Nutricionais , Rhode Island/epidemiologia , Carga Viral
14.
J Acquir Immune Defic Syndr ; 43(4): 475-82, 2006 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-17019373

RESUMO

BACKGROUND: Low serum micronutrient levels were common before widespread use of highly active antiretroviral therapy (HAART) and were associated with adverse outcomes. Few data are available on micronutrient levels in subjects taking HAART. OBJECTIVE: To determine the prevalence of low serum retinol, alpha-tocopherol, zinc, and selenium in HIV-infected subjects taking HAART and to assess the association of micronutrient levels with HIV disease status. DESIGN: Cross-sectional. SETTING: Nutrition for Healthy Living (NFHL) study. PARTICIPANTS: HIV-infected subjects on HAART. METHODS: Retinol, alpha-tocopherol, zinc, and selenium were determined in frozen serum samples from 171 men and 117 women. Low serum levels were defined as retinol <30 microg/dL, selenium <85 microg/L, alpha-tocopherol <500 microg/dL, and zinc <670 microg/L. Association of micronutrient quartiles with CD4 cell count, CD4 count <200 cells/mm, HIV viral load (VL), and undetectable VL was assessed using adjusted multivariate regression. RESULTS: Five percent of men and 14% of women had low retinol, 8% of men and 3% of women had low selenium, and 7% of men and no women had low alpha-tocopherol. Forty percent of men and 36% of women had low zinc, however. Subjects in the upper quartiles of zinc had lower log VL levels than those in the lowest quartile (significant for women). Subjects in the upper quartiles of selenium also tended to have lower VL levels compared with those in the lowest quartile. Surprisingly, women in the upper quartiles of retinol had higher log VLs than those in the lowest quartile. There was no significant association of any micronutrient with CD4 cell count or likelihood of CD4 count <200 cells/mm. The level of CD4 cell count influenced the association of retinol with log VL in men, however. In men with CD4 counts >350 cells/mm, those with higher retinol had higher log VLs compared with the lowest quartile, whereas in men with CD4 counts <350, those with higher retinol levels had lower log VLs compared with the lowest quartile. CONCLUSIONS: Low retinol, alpha-tocopherol, and selenium are uncommon in HIV-infected subjects on HAART. Zinc deficiency remains common, however. Decreased retinol levels in women and in men with CD4 counts >350 cells/mm and increased zinc and selenium levels in both genders may be associated with improved virologic control.


Assuntos
Terapia Antirretroviral de Alta Atividade , Infecções por HIV/tratamento farmacológico , Infecções por HIV/fisiopatologia , Micronutrientes/sangue , Adulto , Contagem de Linfócito CD4 , Estudos de Coortes , Feminino , Infecções por HIV/imunologia , HIV-1/fisiologia , Humanos , Estilo de Vida , Masculino , Pessoa de Meia-Idade , Selênio/sangue , Carga Viral , Vitamina A/sangue , Zinco/sangue , alfa-Tocoferol/sangue
15.
J Am Coll Nutr ; 25(4): 321-31, 2006 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-16943454

RESUMO

OBJECTIVE: To describe the prevalence of obesity among a cohort of individuals living with HIV infection, and to determine differences in dietary intake among those subjects who are normal weight, overweight, and obese. DESIGN: A cross-sectional study among participants enrolled in the Nutrition for Healthy Living (NFHL) study. SETTING: Eligible participants included HIV-positive adults living in the greater Boston, MA and Providence, RI, areas. Subjects and Measures of Outcome: In total, 321 (265 males, 56 females) subjects were studied. Body composition measurements, demographic and health data, and fasting blood samples were analyzed. Dietary intake was assessed by three-day food records. Statistical analyses were performed using Statistical Package for Social Science (SPSS). RESULTS: 13% of males and 29% females were found to be obese. Energy intake per kilogram decreased by body mass index (BMI) category for both men and women (p <0.05). Although not different between groups, mean total fat and saturated fat intakes were above recommendations for both men and women in all BMI categories, while total grams dietary fiber decreased as BMI increased. Individuals in all BMI groups had micronutrient intakes below the Dietary Reference Intakes. Serum markers of insulin resistance were significantly different by BMI category among men and women, as well as triglycerides and total cholesterol for the males. CONCLUSIONS: Obesity and diet in individuals living with HIV-infection needs to be addressed, as quality of dietary intake may have future implications regarding cardiovascular disease, metabolic syndrome, and other health risks associated with overweight and obesity.


Assuntos
Composição Corporal/fisiologia , Dieta , Infecções por HIV/epidemiologia , Estado Nutricional , Obesidade/epidemiologia , Adulto , Índice de Massa Corporal , Estudos de Coortes , Estudos Transversais , Registros de Dieta , Feminino , Infecções por HIV/complicações , Humanos , Masculino , Pessoa de Meia-Idade , Obesidade/complicações
16.
J Am Diet Assoc ; 106(5): 728-32, 2006 May.
Artigo em Inglês | MEDLINE | ID: mdl-16647332

RESUMO

This study focused on dietary glycemic index because insulin resistance can be important in the pathogenesis of fat deposition in human immunodeficiency virus (HIV). We evaluated differences in past dietary glycemic intake between men with HIV who developed fat deposition and those who did not. This was a nested case-control study consisting of 37 cases and 37 controls from the Nutrition for Healthy Living cohort. Food records from 6 to 24 months prior to development of fat deposition in cases were analyzed and compared with controls. Cases were defined as men with a waist-to-hip ratio >0.95 and body mass index (calculated as kg/m(2)) between 23 and 26. Controls were matched by age, race, body mass index, highly active antiretroviral therapy use, and CD4 count. Food records were analyzed using t tests for normally distributed nutrients and Wilcoxon rank-sum tests for nutrients with skewed distributions. Glycemic index was calculated for each meal and day. There was no significant difference in glycemic index for meals and day between participants with or without fat deposition. Both groups had a moderate dietary glycemic index intake. This study showed no association between dietary glycemic index and development of fat deposition in HIV. Instead, results of this study depict the potential benefits associated with eating high-quality diets, primarily adequate fiber and protein intake. Diet can be important in preventing development of fat deposition in patients with HIV.


Assuntos
Composição Corporal , Dieta/normas , Índice Glicêmico , Soropositividade para HIV/complicações , Lipodistrofia , Adiposidade/fisiologia , Adulto , Terapia Antirretroviral de Alta Atividade , Índice de Massa Corporal , Contagem de Linfócito CD4 , Estudos de Casos e Controles , Registros de Dieta , Fibras na Dieta/administração & dosagem , Proteínas Alimentares/administração & dosagem , Humanos , Lipodistrofia/etiologia , Lipodistrofia/prevenção & controle , Masculino , Relação Cintura-Quadril
17.
Nutr Clin Care ; 8(1): 31-6, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-15850232

RESUMO

HIV-associated body shape changes and metabolic abnormalities, called HIV-associated lipodystrophy, are being seen with increased frequency. These issues may be associated with an increased risk of other diseases, such as cardiovascular disease, or with poor adherence to antiretroviral medications. Diet may be useful in the prevention and treatment of lipodystrophy and is a cost-effective and non-toxic intervention. At present, there are limited data on nutrition and HIV-related body shape changes. The purpose of this article is to review the roles that diet may play in the development and treatment of fat deposition and fat atrophy.


Assuntos
Tecido Adiposo/metabolismo , Infecções por HIV/complicações , Síndrome de Lipodistrofia Associada ao HIV/dietoterapia , Dieta , Gorduras na Dieta/administração & dosagem , Fibras na Dieta/administração & dosagem , Humanos
18.
Nutr Clin Care ; 8(1): 37-43, 2005.
Artigo em Inglês | MEDLINE | ID: mdl-15850233

RESUMO

This review examines the relationship among malabsorption, diarrhea, dietary intake, and body composition in an outpatient cohort of individuals with HIV infection. Twenty-three percent of the participants had malabsorption, which was not associated with the presence of current or chronic diarrhea. In this "outpatient" HIV cohort with a mean body-mass index (BMI) of 25 kg/m2, the presence of malabsorption did not have adverse nutritional outcomes in terms of body weight, lean body mass, hemoglobin, or albumin. The diets of those with or without malabsorption did not meet the goals of the Dietary Guidelines for Americans. Median dietary intake was high in percentage of total fat and saturated fat and low in total fiber intake and some key micronutrients.


Assuntos
Dieta , Infecções por HIV/complicações , Síndromes de Malabsorção/complicações , Composição Corporal , Diarreia/complicações , Gorduras na Dieta/administração & dosagem , Fibras na Dieta/administração & dosagem , Feminino , Humanos , Masculino
19.
Am J Clin Nutr ; 78(4): 790-5, 2003 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-14522738

RESUMO

BACKGROUND: Lipodystrophy has been described with increasing frequency in patients infected with HIV. This study focused on the identification of dietary components that may predispose HIV-positive patients to the development of fat deposition. OBJECTIVE: We evaluated differences in past dietary intake between men with HIV who developed fat deposition and those who did not. DESIGN: This nested case-control study consisted of 47 cases and 47 controls from the Nutrition for Healthy Living cohort. Food records from 6 to 24 mo before development of fat deposition in cases were analyzed and compared with food records from controls by using t tests for normally distributed nutrients and Wilcoxon rank-sum tests for nutrients with skewed distributions. RESULTS: HIV-positive patients without fat deposition had greater overall energy intakes (kcal/kg; P = 0.03) and greater intakes of total protein (P = 0.01), total dietary fiber (P = 0.01), soluble dietary fiber (P = 0.01), insoluble dietary fiber (P = 0.03), and pectin (P = 0.02) than did HIV-positive patients with fat deposition. Those without fat deposition also tended to currently perform more resistance training (P = 0.05) and to not be current smokers (P = 0.05). CONCLUSION: Our results indicate that an overall high-quality diet, rich in fiber and adequate in energy and protein, may be beneficial in preventing the development of fat deposition in persons infected with HIV. The results of this study further emphasize that a healthy lifestyle, including exercise and avoidance of unhealthy behaviors such as smoking, may also be similarly beneficial.


Assuntos
Fibras na Dieta/uso terapêutico , Soropositividade para HIV/complicações , Lipodistrofia , Lipodistrofia/etiologia , Adulto , Estudos de Casos e Controles , Dieta , Registros de Dieta , Humanos , Lipodistrofia/prevenção & controle , Masculino , Fatores de Risco
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