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1.
Osteoporos Int ; 30(4): 797-806, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30809725

RESUMO

Osteoporosis is a health issue in postmenopausal women. Physical activity is recommended in these subjects, since it has positive effects on bone mass. Cellular mechanisms underlying this effect are still unclear. Osteogenic cells, released after physical exertion, could be a key factor in exercise-induced bone formation. INTRODUCTION: The aim of our research was to explore if a weight-bearing and resistance exercise program could positively affect circulating osteogenic cells (OCs), markers of bone formation and quality of life (QoL) in osteopenic postmenopausal women. METHODS: We recruited 33 postmenopausal women with a T-score at lumbar spine or femoral neck between - 1 and - 2.5 SD. Anthropometric and fitness parameters, bone-remodeling markers, OCs, and QoL were evaluated at the time of enrolment, after 1-month run-in period, and after 3 months of weight-bearing and resistance exercise. RESULTS: After 3 months of training, the pro-collagen type 1 N-terminal peptide (P1NP) and the number of OCs were significantly increased, with no significant increase of the type 1 collagen cross-linked C-telopeptide (sCTX). We also observed a significant increase in body height, one-repetition maximum (1RM) on the pull-down lat machine and leg press, and mean VO2max. The increase of immature circulating OCs was significantly correlated with the improvement of 1RM both of the upper and lower limbs. Moreover, QoL was significantly improved with regard to pain, physical function, mental function, and general QoL. The improvement in QoL, namely in the overall score and in the pain score, was significantly correlated with the increase in height. CONCLUSIONS: The exercise program we trialed is able to increase the markers of bone formation and the commitment of immature OCs with no significant increase in the markers of bone resorption. Our results confirm that combined weight-bearing and resistance physical activity is an effective tool to improve QoL of postmenopausal women with low bone mass. TRIAL REGISTRATION: NCT03195517.


Assuntos
Osteogênese/fisiologia , Osteoporose Pós-Menopausa/reabilitação , Treinamento Resistido/métodos , Suporte de Carga/fisiologia , Antropometria/métodos , Biomarcadores/sangue , Composição Corporal/fisiologia , Estatura/fisiologia , Densidade Óssea/fisiologia , Remodelação Óssea/fisiologia , Feminino , Colo do Fêmur/fisiopatologia , Humanos , Vértebras Lombares/fisiopatologia , Pessoa de Meia-Idade , Osteoblastos/fisiologia , Osteoporose Pós-Menopausa/patologia , Osteoporose Pós-Menopausa/fisiopatologia , Qualidade de Vida
2.
Artigo em Inglês | MEDLINE | ID: mdl-28058742

RESUMO

Starting from the challenge offered by the authors of the post-traumatic growth (PTG) construct (Tedeschi & Calhoun, ), this paper aims to explore the existence of different linguistic profiles of cognitive and emotional processes in PTG narratives. The autobiographical narratives of 40 cancer patients were analysed for both PTG and linguistic indicators of emotions and cognitive processes. PTG was operationalised as the presence of redemption sequences (McAdams, ). The emotional and cognitive linguistic indicators were analysed by the LIWC program (Pennebaker & Francis, ). All the narratives included PTG (M = 3.55, SD = 1.91). Three clusters of linguistic profiles were retained (60%-79% of variance explained): "disengagement", "assimilative" and "accommodative". These clusters differed significantly by PTG (F = 9.70, p < .000, η2  = .34). Given the limitations of the study, the results highlight the importance of the linguistic approach to a deeper understanding of PTG and to tailored pathways of its promotion.


Assuntos
Adaptação Psicológica , Cognição , Emoções , Neoplasias/psicologia , Psicolinguística/métodos , Transtornos de Estresse Pós-Traumáticos/psicologia , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Narração , Teoria Psicológica , Qualidade de Vida/psicologia
3.
Eur J Vasc Endovasc Surg ; 52(3): 352-9, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27432480

RESUMO

OBJECTIVE/BACKGROUND: Vitamin D deficiency has been associated with the prevalence and severity of peripheral arterial disease (PAD); nevertheless, data on bone turnover in patients with PAD is lacking. The present study investigates a possible relationship between the markers of bone turnover and the presence and severity of PAD. METHODS: The study examined 143 patients, with a mean ± SD age of 75.3 ± 8.5 years (range 50.0-93.0 years), of both sexes, admitted to a department of internal medicine. All patients underwent ankle brachial index (ABI) assessment by Doppler velocimetry. Serum levels of 25(OH) vitamin D and two markers of bone turnover, C-terminal telopeptide of type I collagen (sCTX) and bone isoenzyme of alkaline phosphatase, were measured. The differences between patients with normal ABI and patients with PAD were analyzed. Pearson and Spearman correlation coefficients were calculated and independent predictors were identified through a stepwise linear regression analysis. Odds ratios were calculated with a logistic regression model. RESULTS: Compared with patients with a normal ABI (≥0.90), patients with PAD (ABI < 0.90) presented with significantly lower levels of 25(OH) vitamin D (12.2 ± 9.6 ng/mL vs. 16.7 ± 8.7 ng/mL; p = .006) and a significantly higher concentration of sCTX (1.1 ± 0.7 ng/mL vs. 0.6 ± 0.4 ng/mL; p < .001). There was a positive correlation between ABI and serum concentration of 25 (OH) vitamin D (r = 0.3; p < .001), whereas ABI was inversely correlated with the concentration of sCTX (r = -0.358; p < .001). At logistic regression analysis, age, cigarette smoking, and both vitamin D and sCTX were independent predictors of an ABI < 0.90. CONCLUSION: These results support the hypothesis that hypovitaminosis D and increased bone turnover are risk factors for the presence and severity of PAD. Furthermore, the presence of PAD, even if asymptomatic and diagnosed by a reduced ABI, could identify a population at risk for osteoporosis and osteomalacia.


Assuntos
Reabsorção Óssea/etiologia , Doença Arterial Periférica/etiologia , Deficiência de Vitamina D/complicações , Idoso , Idoso de 80 Anos ou mais , Fosfatase Alcalina/sangue , Índice Tornozelo-Braço , Biomarcadores/sangue , Reabsorção Óssea/diagnóstico , Reabsorção Óssea/fisiopatologia , Distribuição de Qui-Quadrado , Colágeno Tipo I/sangue , Estudos Transversais , Feminino , Humanos , Modelos Lineares , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Peptídeos/sangue , Doença Arterial Periférica/diagnóstico por imagem , Doença Arterial Periférica/fisiopatologia , Fatores de Risco , Índice de Gravidade de Doença , Ultrassonografia Doppler , Vitamina D/análogos & derivados , Vitamina D/sangue , Deficiência de Vitamina D/diagnóstico , Deficiência de Vitamina D/fisiopatologia
4.
Am J Hum Biol ; 26(5): 710-2, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24889785

RESUMO

OBJECTIVES: Amerindians have a particularly high propensity to overweight and obesity as they change lifestyle and experience a nutrition transition. The aim of this study was to evaluate the effects of transculturation on nutritional status in three Amazonian Amerindian villages. METHODS: Nutritional status was assessed in 232 volunteers: 65 Yanomami from an isolated village and 167 Guahibo subjects from villages with intermediate and high levels of transculturation. RESULTS: There was a significant pattern of decreasing stunting and increasing overweight and obesity across the gradient of transculturation. From the jungle Yanomami to the intermediate and transculturated Guahibo, stunting was respectively 72, 55, and 39%, and children /adult overweight was 0, 3/44, and 15/89%. These anthropometric-based patterns were confirmed by bioimpedance vector analysis. CONCLUSIONS: Transculturation in these Amerindian populations is associated with an increase in overweight and obesity coexisting with undernourished children.


Assuntos
Aculturação , Estado Nutricional , Sobrepeso/epidemiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Humanos , Indígenas Sul-Americanos , Masculino , Pessoa de Meia-Idade , Obesidade/epidemiologia , Obesidade/etiologia , Sobrepeso/etiologia , Venezuela/epidemiologia , Adulto Jovem
5.
Sci Rep ; 13(1): 21965, 2023 12 11.
Artigo em Inglês | MEDLINE | ID: mdl-38081902

RESUMO

The transition to farming brought on a series of important changes in human society, lifestyle, diet and health. The human bioarchaeology of the agricultural transition has received much attention, however, relatively few studies have directly tested the interrelationship between individual lifestyle factors and their implications for understanding life history changes among the first farmers. We investigate the interplay between skeletal growth, diet, physical activity and population size across 30,000 years in the central Mediterranean through a 'big data' cross-analysis of osteological data related to stature (n = 361), body mass (n = 334) and long bone biomechanics (n = 481), carbon (δ13C) and nitrogen (δ15N) stable isotopes (n = 1986 human, n = 475 animal) and radiocarbon dates (n = 5263). We present the observed trends on a continuous timescale in order to avoid grouping our data into assigned 'time periods', thus achieving greater resolution and chronological control over our analysis. The results identify important changes in human life history strategies associated with the first farmers, but also highlight the long-term nature of these trends in the millennia either side of the agricultural transition. The integration of these different data is an important step towards disentangling the complex relationship between demography, diet and health, and reconstruct life history changes within a southern European context. We believe the methodological approach adopted here has broader global implications for bioarchaeological studies of human adaptation more generally.


Assuntos
Agricultura , Dieta , Animais , Humanos , Osso e Ossos , Isótopos , Dinâmica Populacional , Isótopos de Nitrogênio , Isótopos de Carbono
6.
Eur J Clin Nutr ; 76(4): 604-609, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-34363054

RESUMO

BACKGROUND/OBJECTIVES: During pregnancy, body composition alterations can be considered as markers of complications and in this context, a non-invasive and low-cost method such as Bioelectrical Impedance Vector Analysis (BIVA), can be employed to monitor such changes. This study aimed at identifying body compartments trend during physiological pregnancy. SUBJECTS/METHODS: Classic and specific BIVA variables have been measured in a sample of 37 pregnant women approximately every 4 weeks of gestation and once postpartum. Researchers used both longitudinal and cross-sectional approach. The first case included data of women from the 11th to the 15th week along with data from the 28th to the 32nd week of gestation. The cross-sectional approach regarded two more specific moments (11th-12th weeks and 30th-31st weeks) and data within two months postpartum RESULTS: The longitudinal approach showed a significant decrease in classic BIVA variables (R/H, Xc/H, Z/H p < 0.001) and a shortening of the vector, pointing out that TBW and hydration increased significantly. Specific vector length increased significantly, indicating a physiological gain of FM% (p < 0.01). The cross-sectional approach showed lower values of R/H, Xc/H, Z/H between 12th-13th and 30th-31st weeks (p < 0.01), while in the postpartum period values tended to those registered at the beginning of pregnancy. No changes have been found for the phase angle in both approaches, indicating that ECW/ICW ratio remained constant CONCLUSIONS: Among physiological pregnancies, bioelectric values showed a coherent trend and these results represent a first contribution to support routine exams, leading to an early detection of anomalous values potentially correlated to pathologies.


Assuntos
Composição Corporal , Composição Corporal/fisiologia , Impedância Elétrica , Feminino , Humanos , Gravidez
7.
Bone ; 152: 116077, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34175499

RESUMO

Tumor-induced osteomalacia (TIO) is a rare paraneoplastic syndrome due to a phosphaturic tumor, which overproduces Fibroblast Growth Factor 23 (FGF-23), causing hyperphosphaturia, hypophosphatemia, low 1,25(OH)2D and osteomalacia. Tumor localization is critical, diagnostic delay ranges from 2.5 to 28 years and to date surgical removal is considered effective treatment. We retrospectively evaluated patients with definite diagnosis of TIO referred to a tertiary Rheumatology Center between September 2000 and May 2020, investigating clinical management and disease outcome. We included 17 patients: 10 (58.8%) were females, mean age at diagnosis was 55.3 ± 13.9 years (mean ± standard deviation), with a diagnostic delay from symptoms onset to tumor detection of 6.6 ± 6.25 years. Biochemical data were: serum phosphorus 1.3 ± 0.4 mg/dL (Reference Range: 2.5-4.6), serum 1,25(OH)2D 31.8 ± 22.9 ng/mL (RR: 25-86), intact FGF-23, 358.9 ± 677 pg/mL (RR: 25-45); 24 h-Urine Phosphorus was increased in only 2 patients, while tubular reabsorption of phosphate (TRP) was decreased in all patients confirming a renal phosphate wasting. In 2013 68Ga- DOTA-based PET/CT was introduced in routinely practice and diagnostic delay was consistently reduced (from 8.6 ± 7.9 to 4.3 ± 2.4 years). Thirteen patients underwent surgery, one patient underwent radiofrequency ablation; 3 patients, not eligible for surgery, were treated only with supplements of phosphorus and calcitriol. One was started on Burosumab after several unsuccessful surgical attempts. After surgery or ablation, 8 patients had complete remission, 3 TIO persistence, and 3 had overtime relapse. Relapses were observed only in patients who previously underwent closed biopsy. To our knowledge, this is the widest European cohort of TIO patients in the last two decades. We confirm a usual diagnostic delay and recommend a stepwise diagnostic approach. Tumor biopsy is not recommended due to the potential cell spilling. Surgery is generally considered a definitive treatment, even though other approaches have been successful in curing TIO. Active surveillance on possible recurrence is always needed. Burosumab appears a promising therapy.


Assuntos
Hipofosfatemia , Neoplasias de Tecido Conjuntivo , Osteomalacia , Adulto , Idoso , Diagnóstico Tardio , Feminino , Fator de Crescimento de Fibroblastos 23 , Fatores de Crescimento de Fibroblastos , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias de Tecido Conjuntivo/diagnóstico por imagem , Síndromes Paraneoplásicas , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Estudos Retrospectivos
8.
Radiol Med ; 114(8): 1239-66, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19697104

RESUMO

PURPOSE: We prospectively compared gadoliniumenhanced magnetic resonance imaging (dynamic MRI), superparamagnetic iron oxide (SPIO) (ferucarbotran) MRI and multidetector-row computed tomography (MDCT) and the combination of dynamic MRI plus MDCT vs. dynamic MRI plus SPIO-MRI (double-contrast MRI: DC-MRI) for the detection of small (1 cm and the highest specificity (83.3%) superior to dynamic MRI (p<0.0001). In the per-lesion analysis, SPIO-MRI demonstrated a positive predictive value higher than dynamic MRI (p=0.0059) and than both the combinations dynamic MRI/MDCT and DC-MRI (p=0.0021 and p=0.0087, respectively). DC-MRI showed the highest sensitivity (97.7%) and accuracy (78.9%), detecting hypovascular and atypical HCCs >1 cm. Furthermore its per-patient negative predictive value was the highest (100%), and significantly higher than all the other methods. CONCLUSIONS: DC-MRI is the most sensitive and accurate method and can be confidently used as a single-step procedure for the detection of small HCCs, with the exception of lesions <1 cm.


Assuntos
Carcinoma Hepatocelular/diagnóstico , Meios de Contraste , Cirrose Hepática/diagnóstico , Neoplasias Hepáticas/diagnóstico , Imageamento por Ressonância Magnética , Tomografia Computadorizada por Raios X , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma Hepatocelular/diagnóstico por imagem , Dextranos , Feminino , Óxido Ferroso-Férrico , Seguimentos , Gadolínio DTPA , Humanos , Cirrose Hepática/diagnóstico por imagem , Neoplasias Hepáticas/diagnóstico por imagem , Nanopartículas de Magnetita , Masculino , Pessoa de Meia-Idade , Valor Preditivo dos Testes , Estudos Prospectivos , Sensibilidade e Especificidade
9.
J Ethnopharmacol ; 192: 480-485, 2016 Nov 04.
Artigo em Inglês | MEDLINE | ID: mdl-27647010

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Allanblackia floribunda Oliv. is one of the most commonly used medicinal plant in Cameroon. The stem bark of the plant is traditionally used for its aphrodisiac and antihypertensive properties. AIM OF THE STUDY: To validate the traditional uses of Allanblackia floribunda stem bark ethanol extract through the evaluation of their aphrodisiac and vasorelaxant properties. MATERIALS AND METHODS: The extract's ability to increase sexual desire and the frequencies of erection (mount), intromission and prolonged latency of ejaculation were studied on adult male rats. The vasodilator effect was investigated using isolated rat aorta rings. Tests were conducted using fractions obtained by reverse phase column-chromatography (CC), after the acquisition of the HPLC fingerprint of the ethanol extract, resulted the most active in previous studies. RESULTS: The CC allowed the isolation of five fractions whose aphrodisiac and vasodilator activities were tested and compared with those of the whole extract. Four compounds were identified and characterized, three of them, Fukugiside, Morelloflavone and Volkensiflavone, are secondary metabolites known to be in Allanblackia floribunda; the fourth, Spicataside, is a biflavonoid glycoside known to be present in the genus Garcinia but never found neither in Allanblackia floribunda nor in Allanblackia genus. The crude ethanolic extract (CEE) induced a relaxation on aorta rings with EC50=11±2µg/mL and Morelloflavone displayed a similar activity with EC50=42±6µg/mL; for all the other compounds only the vasodilation % at the maximum concentration assessable (90µg/mL) was determined: 30±8 (Fukugiside), 24±6 (Spicataside), 33±4 (Morelloflavone+Volkensiflavone), 47±1 (Volkensiflavone). Regarding the activity on male sexual behaviour, only CEE and Fukugiside showed activity in the 9 parameters evaluated. CONCLUSIONS: These results may support the traditional uses of Allanblackia floribunda as aphrodisiac plant with antihypertensive properties suggesting the phytocomplex as responsible for the claimed activity.


Assuntos
Aorta/efeitos dos fármacos , Afrodisíacos/farmacologia , Clusiaceae/química , Extratos Vegetais/farmacologia , Comportamento Sexual Animal/efeitos dos fármacos , Vasodilatação/efeitos dos fármacos , Vasodilatadores/farmacologia , Animais , Afrodisíacos/isolamento & purificação , Biflavonoides/isolamento & purificação , Biflavonoides/farmacologia , Cromatografia Líquida de Alta Pressão , Cromatografia de Fase Reversa , Relação Dose-Resposta a Droga , Ejaculação/efeitos dos fármacos , Etanol/química , Técnicas In Vitro , Masculino , Ereção Peniana/efeitos dos fármacos , Fitoterapia , Extratos Vegetais/isolamento & purificação , Plantas Medicinais , Espectroscopia de Prótons por Ressonância Magnética , Ratos Wistar , Tempo de Reação , Solventes/química , Espectrometria de Massas por Ionização por Electrospray , Espectrometria de Massas em Tandem , Fatores de Tempo , Vasodilatadores/isolamento & purificação
10.
Cell Death Differ ; 22(7): 1131-43, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25501600

RESUMO

Components of the death receptor-mediated pathways like caspase-8 have been identified in complexes at intracellular membranes to spatially restrict the processing of local targets. In this study, we report that the long isoform of the cellular FLICE-inhibitory protein (c-FLIP(L)), a well-known inhibitor of the extrinsic cell death initiator caspase-8, localizes at the endoplasmic reticulum (ER) and mitochondria-associated membranes (MAMs). ER morphology was disrupted and ER Ca(2+)-release as well as ER-mitochondria tethering was decreased in c-FLIP(-/-) mouse embryonic fibroblasts (MEFs). Mechanistically, c-FLIP ablation resulted in enhanced basal caspase-8 activation and in caspase-mediated processing of the ER-shaping protein reticulon-4 (RTN4) that was corrected by re-introduction of c-FLIP(L) and caspase inhibition, resulting in the recovery of a normal ER morphology and ER-mitochondria juxtaposition. Thus, the caspase-8 inhibitor c-FLIP(L) emerges as a component of the MAMs signaling platforms, where caspases appear to regulate ER morphology and ER-mitochondria crosstalk by impinging on ER-shaping proteins like the RTN4.


Assuntos
Proteína Reguladora de Apoptosis Semelhante a CASP8 e FADD/metabolismo , Caspase 8/metabolismo , Retículo Endoplasmático/metabolismo , Mitocôndrias/metabolismo , Transdução de Sinais , Animais , Retículo Endoplasmático/ultraestrutura , Camundongos , Proteínas da Mielina , Proteínas Nogo
11.
J Endocrinol ; 177(3): 373-9, 2003 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-12773117

RESUMO

Desmopressin (DDAVP), an arginine vasopressin analogue, markedly stimulates ACTH secretion in patients with Cushing's disease, in contrast to its minimal effect in normal subjects. However, little is known about the mechanisms underlying this action and it appeared to be of interest to evaluate the effect of DDAVP on ACTH-secreting pituitary adenomas in vitro, in comparison with its effect in the same patients in vivo. Pituitary adenomas from 14 patients with Cushing's disease were incubated with DDAVP, corticotrophin-releasing hormone (CRH) and DDAVP together with vasopressin receptor antagonists or CRH. Incubation with DDAVP induced a modest dose-dependent increase in ACTH concentrations which appeared maximal at 10 nM. CRH stimulated ACTH to a greater extent compared with DDAVP and potentiated the effect of DDAVP alone. The DDAVP-induced ACTH increase appeared blunted by vasopressin V(2) and V(3) receptor antagonists. V(3) receptor gene expression was detected by RT-PCR in all adenoma samples except for two which were not responsive to DDAVP in vitro but responsive to the peptide in vivo. Surprisingly, no difference in the in vitro ACTH secretory response was observed between in vivo DDAVP-responsive (ACTH peak>150% baseline) and -unresponsive (ACTH peak<120% baseline) patients, suggesting that the pituitary adenoma is not the sole mediator of the ACTH-releasing effect of DDAVP. In conclusion, the marked stimulatory effect of DDAVP observed in patients with Cushing's disease appears to be mainly dependent on an extrapituitary action, possibly the inhibition of a corticotrophin release-inhibitory factor.


Assuntos
Hormônio Adrenocorticotrópico/metabolismo , Síndrome de Cushing/fisiopatologia , Desamino Arginina Vasopressina/farmacologia , Adenoma/metabolismo , Adulto , Idoso , Antagonistas dos Receptores de Hormônios Antidiuréticos , Hormônio Liberador da Corticotropina/farmacologia , Síndrome de Cushing/metabolismo , Relação Dose-Resposta a Droga , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias Hipofisárias/metabolismo , Receptores de Vasopressinas/metabolismo , Estatísticas não Paramétricas , Estimulação Química , Células Tumorais Cultivadas
12.
J Craniomaxillofac Surg ; 25(3): 124-35, 1997 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-9234091

RESUMO

The bone tissue formed in orthotopic or heterotopic implants of granular, porous hydroxyapatite and fibrin glue was examined several (2 1/2-8) years after implantation. The results showed distinct ossification in all cases and the functional situation and external appearance were also satisfactory. The reconstituted spongy and compact bone underwent a remodelling process similar to that of normal bone. Most of the hydroxyapatite granules were embedded in the bone tissue; a few were very close to the fibrillar connective tissue of the intertrabecular spaces and were either covered by osteoid-like collagenous borders or were in contact with osteoclast-like giant cells. Even if the results refer only to a few patients, and were obtained from a cross-sectional study, they allow the conclusion to be reached that the implantation of porous hydroxyapatite and fibrin glue leads to the formation of long-lasting bone whose hardness is equal to, or greater than, that of normal bone.


Assuntos
Materiais Biocompatíveis/farmacologia , Regeneração Óssea/efeitos dos fármacos , Durapatita/farmacologia , Ossos Faciais/cirurgia , Adesivo Tecidual de Fibrina/farmacologia , Cirurgia Plástica/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Feminino , Seguimentos , Neoplasias de Cabeça e Pescoço/reabilitação , Humanos , Masculino , Pessoa de Meia-Idade , Próteses e Implantes , Resultado do Tratamento
13.
Chemosphere ; 50(3): 377-82, 2003 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-12656258

RESUMO

Benzo(a)pyrene [B(a)P] air levels were measured in Florence (Italy) in the period 1992-2001. For the period 1999-2000 seven polycyclic aromatic hydrocarbons (PAH) (benzo(a)anthracene, crysene, benzo(a)pyrene (B(a)P), benzo(b)fluoranthene (B(b)F), benzo(k)fluoranthene, dibenzo(a,h)anthracene (DBA) and benzo(g,h,i)perylene (BGP)), were measured in the air in four different sites (one with heavy traffic (A), one in a park (B), one in a residential area (C) and one in a hill area (D)). B(a)P levels were elevated in 1992-1998 (maximum average value of winter months: 5.8 ng/ m3) but a decreasing trend was observed in the following years, probably due to improvement in vehicle emissions. The sum of PAH in the air in the period 1999-2000 was about one order of magnitude lower in the hill site (D) relative to the urban sites, and residential areas (B and C) had values 2.5-3 times lower compared to site A with a heavy traffic. PAH concentrations decreased in the warmer seasons of 2000 in all sites. A negative correlation was found between PAH levels and ozone. A positive correlation with carbon monoxide (CO) (r = 0.862, P < 0.001) and low B(a)P/BGP ratios, ranging from 0.44 to 0.51, indicated that vehicular traffic was the major PAH source in all monitored sites. Using B(a)P(TEF) values (toxic equivalency factors) for evaluating the biological activity of PAH, we found that the highest PAH contributors in terms of potential air carcinogenic activity were B(a)P and DBA. Therefore, in addition to B(a)P, DBA concentration should be considered in the evaluation of air quality in terms of PAH contamination.


Assuntos
Poluentes Atmosféricos/análise , Compostos Policíclicos/análise , Itália
14.
Acta Gastroenterol Latinoam ; 27(4): 253-7, 1997.
Artigo em Espanhol | MEDLINE | ID: mdl-9527722

RESUMO

The aim of this study was to establish the prevalence of H. Pylori infection in patients with chronic gastroduodenal pathology, who were treated in the gastroenterology units of four hospitals located in the Federal Capital and its neighbouring areas. 398 patients were studied by means of clinical assessment and epidemiology data. Upper endoscopy was carried out two biopsies were taken of the gastric antrum for a quick ureasa test and histological assessment of the H. pylori state by means of giemsa's stain. The prevalence of infection on the total of the studied population was 75.6%. In patients with gastric ulcer was 70%; in patients with duodenal ulcer it was 77.2% and 78.5% in patients with chronic gastritis. The prevalence of H. Pylori infection on the population according to age groups was: 61.54% in patients between 21 and 40 years; 76.14% in patients between 41 and 60 years, and 68.22% in patients over 60 year. We have tried to obtain a correlation between the prevalence of the infection and some sanitary characteristic (Running water and sewers) on the studied population. It was seen that 225 patients who lived in dwellings with running water and sewers showed a prevalence of infection of 69.34% and in 129 patients who did not have running water or sewer the rate of prevalence of infection was 83.72; a difference which was statistically significant, (with P < 0.01) for the patients who lived in poor sanitary conditions. These data may be important when the design of therapeutic schemes for the eradication of the bacteria is made.


Assuntos
Gastroenteropatias/epidemiologia , Gastroenteropatias/microbiologia , Infecções por Helicobacter/epidemiologia , Helicobacter pylori , Adulto , Doença Crônica , Úlcera Duodenal/microbiologia , Gastrite/microbiologia , Humanos , Pessoa de Meia-Idade , Prevalência , Estudos Prospectivos , Úlcera Gástrica/microbiologia
15.
Med Lav ; 89(2): 177-87, 1998.
Artigo em Italiano | MEDLINE | ID: mdl-9673107

RESUMO

In Italian urban areas air pollution from benzene and benzo(a)pyrene-B(a)P--is mostly caused by traffic. The concentration limits in the atmosphere fixed by Italian legislation up to December 31, 1998 expressed as annual means are 15 micrograms/m3 and 2.5 ng/m3 for benzene and B(a)P respectively and, starting from January 1, 1999, 10 micrograms/m3 and 1 ng/m3. In the city of Florence the concentrations detected and expressed as annual means of benzene and B(a)P in an area with heavy traffic (32.1 micrograms/m3 and 3.5 ng/m3), in a densely populated area (9.2 micrograms/m3 and 1.86 ng/m3), and in a city park (6.0 micrograms/m3 and 0.25 ng/m3), suggest a marked progressive reduction in the atmospheric levels of these chemicals with the distance from the main roads. The environmental data obtained from densely populated areas of a number of Italian cities (Firenze, Milano, Roma, Bologna, Bolzano, Pavia, Modena), the only ones that allow evaluation of the health risk, show benzene concentrations ranging from 6.0 to 11.3 micrograms/m3 and B(a)P levels, measured in heavy traffic areas, from 1.0 to 3.5 ng/m3 respectively (annual mean in 1996). The data obtained in the city of Florence show that the population is exposed weekly to average concentrations of 14.3 micrograms/m3 for benzene and 2.0 ng/m3 for B(a)P. These results suggest that, regarding benzene and B(a)P pollution, the situation in Florence is far from being critical but not such as to ensure that long-term exposure is without adverse effects.


Assuntos
Poluentes Atmosféricos/análise , Benzeno/análise , Benzo(a)pireno/análise , Carcinógenos Ambientais/análise , Solventes/análise , Saúde da População Urbana , Cidades , Monitoramento Ambiental , Itália , Emissões de Veículos/análise
16.
Eur J Clin Nutr ; 68(11): 1234-40, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25139557

RESUMO

This review is directed to define the efficacy of bioelectrical impedance vector analysis (BIVA) for assessing two-compartment body composition. A systematic literature review using MEDLINE database up to 12 February 2014 was performed. The list of papers citing the first description of BIVA, obtained from SCOPUS, and the reference lists of included studies were also searched. Selection criteria included studies comparing the results of BIVA with those of other techniques, and studies analyzing bioelectrical vectors of obese, athletic, cachectic and lean individuals. Thirty articles met the inclusion criteria. The ability of classic BIVA for assessing two-compartment body composition has been mainly evaluated by means of indirect techniques, such as anthropometry and bioelectrical impedance analysis (BIA). Classic BIVA showed a high agreement with body mass index, that can be interpreted in relation to the greater body mass of obese and athletic individuals, whereas the comparison with BIA showed less consistent results, especially in diseased individuals. When a reference method was used, classic BIVA failed to accurately recognize FM% variations, whereas specific BIVA furnished good results. Specific BIVA is a promising alternative to classic BIVA for assessing two-compartment body composition, with potential application in nutritional, sport and geriatric medicine.


Assuntos
Composição Corporal , Índice de Massa Corporal , Água Corporal , Caquexia/metabolismo , Bases de Dados Factuais , Impedância Elétrica , Humanos , Estado Nutricional , Obesidade/metabolismo , Magreza/metabolismo
17.
Exp Gerontol ; 58: 30-3, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25019474

RESUMO

In this study we analyzed body composition in relation to cognitive and functional status, in a cross-sectional sample of patients with Alzheimer's disease (AD). Seventy individuals (27 men, 78.1±6.5years; 43 women, 80.4±5.6years) with mild-moderate stages of AD (clinical dementia ratings 1 and 2) were selected from the Alzheimer Center, SS. Trinità Hospital, ASL 8 of Cagliari (Italy). Cognitive and psycho-functional status was evaluated using mini-mental state examination (MMSE), activities of daily living (ADL) scale, and geriatric depression scale (GDS). Mini-nutritional assessment (MNA) was applied. Anthropometric measurements were taken and body mass index (BMI) was calculated. Body composition was assessed by means of specific bioelectrical impedance vector analysis (BIVA), using the references for the elderly. In comparison with the reference group, patients with AD showed similar BMI and MNA, but peculiar bioelectrical characteristics: lower phase angles and longer vectors (p<0.05). According to specific BIVA, this bioelectrical pattern is indicative of a reduction of lean tissue mass and an increase of percent fat mass (FM%). A more accentuated lean mass reduction (p < 0.05) was observed in women with worse cognitive status and a FM% increase (p < 0.01) in women with worse functional status. In conclusion, patients with AD had lower lean tissue mass and higher percent fat mass than healthy elderly individuals. In women, this pattern was associated with cognitive and functional decline, as indicated by MMSE and ADL values. Specific BIVA showed to be a suitable technique in the elderly, that could enhance BMI and MNA information in the evaluation of nutritional status.


Assuntos
Adiposidade , Doença de Alzheimer/fisiopatologia , Atividades Cotidianas , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Doença de Alzheimer/diagnóstico , Doença de Alzheimer/psicologia , Índice de Massa Corporal , Estudos de Casos e Controles , Cognição , Estudos Transversais , Impedância Elétrica , Feminino , Avaliação Geriátrica , Nível de Saúde , Humanos , Itália , Masculino , Avaliação Nutricional , Estado Nutricional , Valor Preditivo dos Testes , Índice de Gravidade de Doença , Fatores Sexuais
19.
Musculoskelet Surg ; 97 Suppl 1: 15-22, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23588827

RESUMO

PURPOSE: This study aims to review the incidence of fibromyalgia in a cohort of patients who were treated for shoulder pain and address whether a concomitant fibromyalgia could have had detrimental effect on outcomes. METHODS: The treatment of 286 consecutive patients for shoulder pain was reviewed. RESULTS: Eighteen patients (6.3 %) were diagnosed as having fibromyalgia, but in 13 of them (72 %), the diagnosis was initially missed. Five patients received a total of 11 surgeries for treatment of the shoulder. At an average follow-up of 15 months (range 12-27), the average new Oxford shoulder score (OS score) was 49 % (range 6-87 %). The average physical component of the Short-Form-12 Healthy Survey (SF-12) was 36 (range 21-55), and the mental component 30 (range 15-46). The Summary Outcome Determination score (SOD score) was 1.3 (range-3 to 6). CONCLUSIONS: Fibromyalgia occurs relatively frequently in patients who complain of shoulder pain and it can be a cause of failure in the treatment of concomitant painful shoulder conditions.


Assuntos
Fibromialgia/complicações , Fibromialgia/epidemiologia , Dor de Ombro/complicações , Dor de Ombro/terapia , Idoso , Algoritmos , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Falha de Tratamento
20.
J Nutr Health Aging ; 17(6): 515-21, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23732547

RESUMO

OBJECTIVES: This study aimed to ascertain the efficacy of bioelectrical impedance vector analysis (BIVA) in assessing body composition in the elderly by comparing findings with the results of dual-energy X-ray absorptiometry (DXA), and to test an analytical variant of the method (specific BIVA). DESIGN: Cross-sectional study. PARTICIPANTS: The sample comprised 207 free-living elderly individuals (75 men and 132 women) aged 65 to 93 years. MEASUREMENTS: Anthropometric and bioelectrical measurements were taken according to standard criteria. BIVA was applied using the 'classic' procedure and correcting bioelectrical values for body geometry to obtain an estimate of the whole-body impedivity. DXA was used as a reference body composition assessment method. BIVA (classic and specific values) and DXA findings were compared using Student's t and Hotelling's T2 tests, and Pearson's correlation coefficient. RESULTS: In both sexes, BIVA distinguished between individuals with different amounts of fat and fat-free mass (lean mass including bone mineral content), according to DXA, but not between those with different proportions of fat mass (FM%). Specific bioelectrical values detected changes in body composition. CONCLUSION: BIVA should be used with caution for evaluating body composition in the elderly. Specific bioelectrical values proved effective, showing promise as a methodological variant of BIVA, suitable for identifying age-related changes in body fatness.


Assuntos
Antropometria/métodos , Composição Corporal , Impedância Elétrica , Absorciometria de Fóton , Tecido Adiposo , Idoso , Idoso de 80 Anos ou mais , Índice de Massa Corporal , Densidade Óssea , Estudos Transversais , Feminino , Humanos , Masculino , Estado Nutricional
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