RESUMEN
OBJECTIVES: The aim of this study was to investigate if there is a relation among 25(OH)D, aquatic training, and multifunctional fitness on functional performance of elderly woman from the community. DESIGN: Cross-sectional study. SETTING: Community. PARTICIPANTS: We evaluated elderly women aged ≥ 60 years (67±5 years old). One-hundred eighty were engaged in aquatic training (AT), 119 in multifunctional fitness (MF) for at least one year, and sedentary group (SED) with 162 independent elderly women from the community centers who had not practicing any regular physical exercise at least one year before. MEASUREMENTS: Timed up-and-go (TUG), 2-minute step test (2MST), 30-second chair stand (CS), arm curl (AC), functional reach test (FRT), unipedal balance test (UB) with visual control, handgrip right (HR) and handgrip left (HL) portable dynamometer for strength hip flexors (Hip strength) and knee extensors (Knee strength), serum 25(OH)D, intact parathyroid hormone (PTH), and creatinine clearance. RESULTS: Physical and functional tests showed differences among the three groups (ST; TUG, CS, AC, FR and USB = p <0.001). The PTH and the TUG test correlated inversely with 25(OH)D (r = -0.29 - p <0.001/ r = - 0.16 - p <0.001), also between 25(OH)D and BMI for AT and MF groups respectively (r= -0,15; p=0,04/ r= - 0,19; p=0,036). The AC test showed positive correlation (r = 0, 1 - p <0.001). The age and 25(OH)D were controlled and assumed to be a covariates in the statistical analysis that employed ANCOVA. There was difference on the performance of TUG test (p= 0.049). CONCLUSION: TUG performance was associated with age, exercise type and serum levels of 25(OH)D. The 25(OH)D insufficiency was common in elderly women from subtropical areas.
Asunto(s)
Ejercicio Físico/fisiología , Aptitud Física/fisiología , Vitamina D/análogos & derivados , Anciano , Estudios Transversales , Prueba de Esfuerzo , Femenino , Humanos , Persona de Mediana Edad , Fuerza Muscular/fisiología , Conducta Sedentaria , Vitamina D/sangreRESUMEN
Studies on the association between vitamin D receptor (VDR) polymorphism and bone mineral density (BMD) in different populations have produced conflicting results probably due to ethnic differences in the populations studied. The Brazilian population is characterized by a very broad genetic background and a high degree of miscegenation. Of an initial group of 164, we studied 127 women from the city of Spo Paulo, aged 20 to 47 years (median, 31 years), with normal menses, a normal diet and no history of diseases or use of any medication that could alter BMD. VDR genotype was assessed by PCR amplification followed by BsmI digestion of DNA isolated from peripheral leukocytes. BMD was measured using dual energy X-ray absorpitometry (Lunar DPX) at the lumbar site (L2-L4) and femoral neck. Most of the women (77.6 per cent) were considered to be of predominantly European ancestry (20.6 per cent of them reported also native American ancestry), 12.8 per cent were of African-Brazilian ancestry and 9.6 per cent of Asian ancestry, 41.0 per cent (52) were classified as bb, 48.8 per cent (62) as Bb and 10.2 per cent (13) as BB. The BB, Bb and bb groups did not differ in age, height, weight, body mass index or age at menarche, Lumbar spine BMD was significantly higher in the bb group (1.22 + 0.16 g/cm2) than in the BB group (1.08 + 0.14; P<0.05), and the Bb group presented an intermediate value (1.17 + 0.15). Femoral neck BMD was higher in the bb group (0.99 + 0.11 g/cm2) compared to Bb (0.93 + 0.12) and BB (0.90 + 0.09) (P<0.05). These data indicate that there is a significant correlation between the VDR BsmI genotype and BMD in healthy Brazilian premenopausal females.
Asunto(s)
Femenino , Humanos , Adulto , Alelos , Densidad Ósea/fisiología , Premenopausia/fisiología , Receptores de Calcitriol/genética , BrasilRESUMEN
A hipercalcemia é uma das maiores freqüentes manifestaçöes paraneoplásicas, principalmente dentre as neoplasias malignas de pulmäo, mas ainda pouco valorizada em nosso meio. Neste trabalho estudamos a prevalência de hipercalcemia em uma populaçäo de pacientes portadores de tumor de pulmäo que freqüentaram o ambulatório específico da Escola Paulista de Medicina no Hospital Säo Paulo. Foram investigadso 90 pacientes assim distribuídos: 35 carcinomas espinocelulares (CEC), 30 adenocarcinomas (AdenoCa), 11 carcinomas indiferenciados de pequenas células (CIPC), 2 tumores de grandes células (RGC), 1 carcinóide, 1 mesotelioma, 2 indiferenciados, 1 adenoescamoso, 1 carcinoma in situ e 3 tumores metastáticos de origens diversas. Em todos estes pacientes foi dosado Ca ionizado (Ca-i) em amostras de sangue total. Nos pacientes em que se constataram níveis de Ca-i acima do limite de normalidade )>1,29 mmol/L), foram realizadas dosagens de paratormônio (PTH) sérico e AMP cíclico urinário para se afastar um possível hiperparatiroidismo como causa da hipercalcemia. Encontramos níveis de Ca-i elevados (variando de 1,3 a 2,0 mmol/L em 18 destes pacientes (20//), sendo: 12 CEC (66,7//), 3 AdenoCa (16,7//), 2 CIPC (11,1//) e 1 TGC (5,6//). O PTH estava baixo ou suprimido em todos os pacientes hipercalcêmicos, afastando, desta forma, um hiperparatiroidismo. A dosagem de AMP cíclico urinário näo se mostrou útil no diagnóstico diferencial, estando elevada em 6 dos 12 pacientes avaliados. Concluímos ser hipercalcemia um achado bastante comum em pacientes portadores de tumores de pulmäo, principalmente dentre os carcinomas espinocelulares, sendo seu diagnóstico sindrômico e etiológico de grande interesse para melhor tratamento desses pacientes