Dietetic intervention in psoriatic arthritis: the DIETA trial.

AIM: To evaluate whether dietary pattern changes, antioxidant supplementation or 5-10% weight loss could improve disease activity (skin and joint) in patients with psoriatic arthritis (PsA). METHODS: A total of 97 PsA patients were enrolled in this 12-week randomized, double-blinded, placebo-controlled trial. Patients were randomized into three groups: Diet-placebo (hypocaloric diet + placebo supplementation); Diet-fish (hypocaloric diet + 3 g/day of omega-3 supplementation; and Placebo. Food intake (3-day registry, Healthy Eating Index (HEI), and the Dietary Inflammatory Index (DII)), body composition (whole-body dual-energy X-ray absorptiometry (DXA), weight and waist circumference) and disease activity (PASI, BSA, BASDAI, DAS28-ESR, DAS28-CRP and MDA) were evaluated at baseline and after the 12-week intervention. Statistical analysis used the intention-to-treat approach. The P value was considered to indicate significance when below 0.05. RESULTS: After 12 weeks, DAS28-CRP and BASDAI scores improved, especially in the Diet-placebo group (- 0.6 ± 0.9; p = 0.004 and - 1.39 ± 1.97; p = 0.001, respectively). In addition, a higher proportion of patients achieved minimal disease activity (MDA) in all groups. The Diet-fish group showed significant weight loss (- 1.79 ± 2.4; p = 0.004), as well as waist circumference (- 3.28 ± 3.5, p < 0.001) and body fat (- 1.2 ± 2.2, p = 0.006) reductions. There was no significant correlation between weight loss and disease activity improvement. Each 1-unit increase in the HEI value reduced the likelihood of achieving remission by 4%. Additionally, each 100-cal daily intake increase caused a 3.4-fold DAS28-ESR impairment. CONCLUSION: A 12-week hypocaloric intervention provided suitable control of joint disease activity in patients with PsA, regardless of weight loss. Adding omega-3 supplementation caused relevant body composition changes but not disease activity improvement. TRIAL REGISTRATION: The study was recorded on Clinicaltrials.gov (NCT03142503).

Higher prevalence of morphometric vertebral fractures in patients with recent coronary events independently of BMD measurements.

Cardiovascular disease and osteoporosis are important causes of morbi-mortality in the elderly and may be mutually related. Low bone mineral density (BMD) may be associated with increased risk of cardiovascular events. We investigated the prevalence of low bone mass and fractures in metabolic syndrome patients with acute coronary events. A case-control study was conducted with 150 individuals (30-80years-old) with metabolic syndrome. Seventy-one patients had had an acute coronary syndrome episode in the last 6months (cases) and the remaining 79 had no coronary event (controls). Cases and controls were matched for gender, BMI and age. DXA measurements and body composition were performed while spine radiographs surveyed for vertebral fractures and vascular calcification. Biochemical bone and metabolic parameters were measured in all patients. No statistically significant difference in BMD and the prevalence of osteopenia, osteoporosis and non-vertebral fractures was observed between cases and controls. The prevalence of vertebral fractures and all fractures was higher in the cases (14.1 versus 1.3%, p=0.003 and 22.5versus7.6%, p=0.010, respectively). Male gender (OR=0.22 95% CI 0.58 to 0.83, p=0.026) and daily intake of more than 3 portions of dairy products (OR=0.19 95% CI 0.49 to 0.75, p=0.017) were associated with lower prevalence of fractures. Cases had higher risk for fractures (OR=4.97, 95% CI 1.17 to 30.30, p=0.031). Bone mass and body composition parameters were not associated with cardiovascular risk factors or bone mineral metabolism. Patients with fragility fractures had higher OPG serum levels than those without fractures (p<0.001). Our findings demonstrated that patients with recent coronary events have a higher prevalence of vertebral fractures independently of BMD.

The burden of osteoporosis in Brazil: regional data from fractures in adult men and women--the Brazilian Osteoporosis Study (BRAZOS).

OBJECTIVES: The BRAZOS (The Brazilian Osteoporosis Study) study is the first epidemiological and population-based study carried out in a representative sample of Brazilian men and women, 40 years or older, with the objective of identifying the prevalence and main clinical risk factors (CRF) associated with low-impact fractures. This report shows the main results according to each region of the country. PATIENTS AND METHODS: A total of 2,420 subjects (70% women) from 150 different cities in five geographic regions in Brazil, and from all different socio-economical classes were included in this study. Anthropometrical data, as well life style, previous fractures, nutritional status, physical activity, falls, and quality of life were evaluated by a quantitative individual survey. Low-impact fracture was defined as that resulting from a fall no greater than standing height of an individual. A P < 0.05 was considered significant. RESULTS: Statistically significant differences in the prevalence of fractures among the five Brazilian regions according to gender or social class were not observed. However, in women, a higher incidence of fractures was observed in metropolitan areas than in rural areas, and a tendency for a higher frequency of fractures was observed in men from Northeastern states. Statistically significant differences among men from metropolitan areas or rural areas were not observed. CONCLUSIONS: Significant differences in the prevalence of low-impact fractures among the five different regions of Brazil were not observed, as well as its frequency or relevance of risk factors.

O impacto da osteoporose no Brasil: dados regionais das fraturas em homens e mulheres adultos: The Brazilian Osteoporosis Study (BRAZOS) / The burden of osteoporosis in Brazil: regional data from fractures in adult men and women: The Brazilian Osteoporosis Study (BRAZOS)

INTRODUÇÃO/OBJETIVOS: O BRAZOS (The Brazilian Osteoporosis Study) é um estudo epidemiológico, de base populacional, realizado em amostra representativa de mulheres e homens brasileiros, de idade superior a 40 anos, com o objetivo de identificar os principais fatores clínicos de risco associados com fratura por baixo impacto. Nesse artigo são apresentados os principais resultados do estudo, de acordo com cada região do país. PACIENTES E MÉTODOS: Um total de 2.420 indivíduos, provenientes das cinco regiões do país e de todas as classes socioeconômicas foram incluídos no estudo. Foram avaliados dados antropométricos, bem como aspectos relacionados aos hábitos de vida, fraturas, ingestão alimentar, atividade física, quedas e qualidade de vida por meio de entrevista individual e quantitativa. Fratura por baixo impacto foi definida como aquela decorrente de queda da própria altura ou menos. Valor de P < 0,05 foi considerado como estatisticamente significante. RESULTADOS: Não houve diferença estatisticamente significativa da prevalência de fratura nas cinco regiões do Brasil, de acordo com o sexo ou classe social. No entanto, nas mulheres, houve maior ocorrência de fraturas na região metropolitana do que nos municípios do interior dos estados e tendência a maior frequência de fraturas em homens da região nordeste. Não foi verificada diferença estatisticamente significativa de fraturas se os homens eram provenientes das capitais ou do interior dos estados. CONCLUSÕES: De acordo com os nossos resultados, não foi observada diferença significativa da prevalência de fraturas por baixo impacto nem da frequência ou relevância de fatores de risco entre as cinco regiões do Brasil.

OBJECTIVES: The BRAZOS (The Brazilian Osteoporosis Study) study is the first epidemiological and population-based study carried out in a representative sample of Brazilian men and women, 40 years or older, with the objective of identifying the prevalence and main clinical risk factors (CRF) associated with low-impact fractures. This report shows the main results according to each region of the country. PATIENTS AND METHODS: A total of 2,420 subjects (70 percent women) from 150 different cities in five geographic regions in Brazil, and from all different socio-economical classes were included in this study. Anthropometrical data, as well life style, previous fractures, nutritional status, physical activity, falls, and quality of life were evaluated by a quantitative individual survey. Low-impact fracture was defined as that resulting from a fall no greater than standing height of an individual. A P < 0.05 was considered significant. RESULTS: Statistically significant differences in the prevalence of fractures among the five Brazilian regions according to gender or social class were not observed. However, in women, a higher incidence of fractures was observed in metropolitan areas than in rural areas, and a tendency for a higher frequency of fractures was observed in men from Northeastern states. Statistically significant differences among men from metropolitan areas or rural areas were not observed. CONCLUSIONS: Significant differences in the prevalence of low-impact fractures among the five different regions of Brazil were not observed, as well as its frequency or relevance of risk factors.

Influence of body composition on bone mass in postmenopausal osteoporotic women.

We aimed at evaluating the relationship of lean and fat mass to bone mass in osteoporotic postmenopausal women. We invited 65 women who were being treated at the São Paulo Hospital osteoporosis outpatients' clinic to participate. Body composition and bone mineral density (BMD) measurements were performed using Dual-energy X-ray absorptiometry methodology (DXA). The mean age and weight were 69.7±6.4 years and 56.3±7.6 kg, respectively. Accordingly to the body mass index (BMI), 52.8% were of normal weight and 47.1% of the patients were overweight. Overweight women had significantly higher bone mass. Similarly, skeletal muscle index (SMI) showed a positive effect on BMD measurements and women with sarcopenia had significantly lower BMD measurements in total femur and femoral neck. In multiple regression analysis only lean mass and age, after adjustments to fat mass and BMI, were able to predict total body bone mineral content (BMC) (R(2)=28%). Also lean mass adjusted to age and BMI were able to predict femoral neck BMD (R(2)=14%). On the other hand, none of the components of the body composition (lean mass or fat mass) contributed significantly to explaining total femur BMD and neither body composition measurements were associated with spine BMD. These findings suggest that lean mass has a relevant role in BMC and BMD measurements. In addition, lower BMI and lean mass loss (sarcopenia) is associated to lower BMC and BMD of femoral neck and total femur and possible higher risk of osteoporotic fracture.

Is a lower dose of vitamin D supplementation enough to increase 25(OH)D status in a sunny country?

BACKGROUND: Calcium and vitamin D are essential nutrients for bone metabolism Vitamin D can either be obtained from dietary sources or cutaneous synthesis. The study was conducted in subtropic weather; therefore, some might believe that the levels of solar radiation would be sufficient in this area. AIM OF THE STUDY: To evaluate calcium and vitamin D supplementation in postmenopausal women with osteoporosis living in a sunny country. METHODS: A 3-month controlled clinical trial with 64 postmenopausal women with osteoporosis, mean age 62 + or - 8 years. They were randomly assigned to either the supplement group, who received 1,200 mg of calcium carbonate and 400 IU (10 microg) of vitamin D(3,) or the control group. Dietary intake assessment was performed, bone mineral density and body composition were measured, and biochemical markers of bone metabolism were analyzed. RESULTS: Considering all participants at baseline, serum vitamin D was under 75 nmol/l in 91.4% of the participants. The concentration of serum 25(OH)D increased significantly (p = 0.023) after 3 months of supplementation from 46.67 + or - 13.97 to 59.47 + or - 17.50 nmol/l. However, the dose given was limited in effect, and 86.2% of the supplement group did not reach optimal levels of 25(OH)D. Parathyroid hormone was elevated in 22.4% of the study group. After the intervention period, mean parathyroid hormone tended to decrease in the supplement group (p = 0.063). CONCLUSION: The dose given (400 IU/day) was not enough to achieve 25(OH)D concentration, considered optimal for bone health.

Cálcio dietético: estratégias para otimizar o consumo / Dietary calcium: strategies to optimize intake

O cálcio é um nutriente essencial necessário em diversas funções biológicas. Estudos têm demonstrado a associação entre o baixo consumo de cálcio e doenças crônicas, entre elas osteoporose, câncer de colón, hipertensão arterial e obesidade. Entretanto, grande parte da população brasileira apresenta consumo de cálcio abaixo do recomendado. Este artigo objetiva revisar os fatores endógenos (idade e estado hormonal) e exógenos (fitatos, oxalatos, sódio, compostos bioativos e vitamina D) que influenciam a absorção do cálcio, bem como as principais metodologias utilizadas para avaliar a absorção e biodisponibilidade desse nutriente. Discorre-se sobre os possíveis fatores para o baixo consumo de cálcio: 1) Hábito alimentar - substituição de leite por bebidas com baixo teor de cálcio como o refrigerante, refeições realizadas fora de casa e a não realização de refeições como o café da manhã; 2) Alto custo dos alimentos fontes de cálcio. Além disso, este artigo discute as estratégias para otimizar o consumo do cálcio, que incluem: 1) Aumentar o conhecimento sobre a importância do consumo de cálcio para a saúde e as principais fontes alimentares desse nutriente; 2) Aumentar a disponibilidade de alimentos fortificados com cálcio; 3) Uso de suplementos em grupos específicos - quando e como administrar os sais de cálcio.

Calcium is an essential nutrient required for numerous biological functions. Studies have demonstrated an association between low calcium intake and chronic diseases, such as osteoporosis, colon cancer, hypertension, and obesity. However, most Brazilians do not meet the adequate intake for calcium. This review focuses on the endogenous (age, hormonal state) and exogenous (phytate, oxalate, sodium, bioactive compounds and vitamin D) factors that can influence calcium absorption. The main methods used for evaluating calcium absorption and bioavailability. The potential factors for the low calcium intake: 1) Food habits - substitution of milk for soft drinks, eating away from home and skipping meals specially breakfast; 2) High cost of dairy food. Besides, this article discuss strategies to optimize calcium intake: 1) Increase knowledge of the relationship between calcium and health and the main food sources; 2) Increase availability of calcium-fortified foods; 3) Supplement use for target groups - when and how administrate calcium salts.

Nutrient intakes related to osteoporotic fractures in men and women--the Brazilian Osteoporosis Study (BRAZOS).

BACKGROUND: Adequate nutrition plays an important role in bone mass accrual and maintenance and has been demonstrated as a significant tool for the prevention of fractures in individuals with osteoporosis. OBJECTIVE: The aim of the present study was to evaluate bone health-related nutrients intake and its association with osteoporotic fractures in a representative sample of 2344 individuals aged 40 years or older in Brazil. METHODS: In a transversal population-based study, a total of 2420 individuals over 40 years old were evaluated from March to April 2006. Participants were men and women from all socio-economic classes and education levels living around the Brazilian territory Individuals responded a questionnaire including self reported fractures as well a 24-hour food recall. Nutrient intakes were evaluated by Nutrition Data System for Research software (NDSR, University of Minnesota, 2007). Low trauma fracture was defined as that resulting of a fall from standing height or less. Nutrient intakes adequacies were performed by using the DRI's proposed values. Statistical analysis comprises Oneway ANCOVA adjusted by age and use of nutritional supplements and multiple logistic regression. SAS software was used for statistical analysis. RESULTS: Fractures was reported by 13% of men and 15% of women. Women with fractures presented significantly higher calcium, phosphorus and magnesium intakes. However, in all regions and socio-economical levels mean intakes of bone related nutrients were below the recommended levels. It was demonstrated that for every 100 mg/phosphorus increase the risk of fractures by 9% (OR 1.09; IC95% 1.05-1.13, p < 0.001). CONCLUSION: The results demonstrated inadequacies in bone related nutrients in our population as well that an increase in phosphorus intake is related to bone fractures.