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BACKGROUND: Three prospective studies have evaluated the association between dietary acrylamide intake and endometrial cancer (EC) risk with inconsistent results. The objective of this study was to evaluate the association between acrylamide intake and EC risk: for overall EC, for type-I EC, and in never smokers and never users of oral contraceptives (OCs). Smoking is a source of acrylamide, and OC use is a protective factor for EC risk. METHODS: Cox regression was used to estimate hazard ratios (HRs) for the association between acrylamide intake and EC risk in the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort. Acrylamide intake was estimated from the EU acrylamide monitoring database, which was matched with EPIC questionnaire-based food consumption data. Acrylamide intake was energy adjusted using the residual method. RESULTS: No associations were observed between acrylamide intake and overall EC (n=1382) or type-I EC risk (n=627). We observed increasing relative risks for type-I EC with increasing acrylamide intake among women who both never smoked and were non-users of OCs (HRQ5vsQ1: 1.97, 95% CI: 1.08-3.62; likelihood ratio test (LRT) P-value: 0.01, n=203). CONCLUSIONS: Dietary intake of acrylamide was not associated with overall or type-I EC risk; however, positive associations with type I were observed in women who were both non-users of OCs and never smokers.
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Acrilamida/efectos adversos , Ingestión de Alimentos/fisiología , Neoplasias Endometriales/etiología , Estudios de Cohortes , Dieta/métodos , Femenino , Humanos , Persona de Mediana Edad , Estado Nutricional/fisiología , Estudios Prospectivos , Riesgo , Factores de Riesgo , Fumar/efectos adversosRESUMEN
BACKGROUND: The number and projections of cancer survivors are necessary to meet the healthcare needs of patients, while data on cure prevalence, that is, the percentage of patients who will not die of cancer by time since diagnosis, are lacking. MATERIALS AND METHODS: Data from Italian cancer registries (duration of registration ranged from 9 to 40 years, with a median of 22 years) covering 47% of the population were used to calculate the limited-duration prevalence, the complete prevalence in 2018, projections to 2030, and cure prevalence, by cancer type, sex, age, and time since diagnosis. RESULTS: A total of 3 347 809 people were alive in Italy in 2018 after a cancer diagnosis, corresponding to 5.6% of the resident population. They will increase by 1.5% per year to 4 012 376 in 2030, corresponding to 6.9% of the resident population, 7.6% of women and â¼22% after age 75 years. In 2030, more than one-half of all prevalent cases (2 million) will have been diagnosed by ≥10 years. Those with breast (1.05 million), prostate (0.56 million), or colorectal cancers (0.47 million) will be 52% of all prevalent patients. Cure prevalence was 86% for all patients alive in 2018 (87% for patients with breast cancer and 99% for patients with thyroid or testicular cancer), increasing with time since diagnosis to 93% for patients alive after 5 years and 96% after 10 years. Among patients who survived at least 5 years, the excess risk of death (1 - cure prevalence) was <5% for patients with most cancer types except for those with cancers of the breast (8.3%), lung (11.1%), kidney (13.2%), and bladder (15.5%). CONCLUSIONS: Study findings encourage the implementation of evidence-based policies aimed at improving long-term clinical follow-up and rehabilitation of people living after cancer diagnosis throughout the course of the disease. Updated estimates of complete prevalence are important to enhance data-driven cancer control planning.
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Neoplasias , Humanos , Italia/epidemiología , Femenino , Masculino , Prevalencia , Neoplasias/epidemiología , Neoplasias/terapia , Anciano , Persona de Mediana Edad , Adulto , Adolescente , Adulto Joven , Niño , Anciano de 80 o más Años , Sistema de Registros , Supervivientes de Cáncer/estadística & datos numéricos , Preescolar , Lactante , Predicción , Recién NacidoRESUMEN
BACKGROUND: It is well established that parity and use of oral contraceptives reduce the risk of ovarian cancer, but the associations with other reproductive variables are less clear. METHODS: We examined the associations of oral contraceptive use and reproductive factors with ovarian cancer risk in the European Prospective Investigation into Cancer and Nutrition. Among 327,396 eligible women, 878 developed ovarian cancer over an average of 9 years. Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated using Cox proportional hazard models stratified by centre and age, and adjusted for smoking status, body mass index, unilateral ovariectomy, simple hysterectomy, menopausal hormone therapy, and mutually adjusted for age at menarche, age at menopause, number of full-term pregnancies and duration of oral contraceptive use. RESULTS: Women who used oral contraceptives for 10 or more years had a significant 45% (HR, 0.55; 95% CI, 0.41-0.75) lower risk compared with users of 1 year or less (P-trend, <0.01). Compared with nulliparous women, parous women had a 29% (HR, 0.71; 95% CI, 0.59-0.87) lower risk, with an 8% reduction in risk for each additional pregnancy. A high age at menopause was associated with a higher risk of ovarian cancer (>52 vs ≤ 45 years: HR, 1.46; 95% CI, 1.06-1.99; P-trend, 0.02). Age at menarche, age at first full-term pregnancy, incomplete pregnancies and breastfeeding were not associated with risk. CONCLUSION: This study shows a strong protective association of oral contraceptives and parity with ovarian cancer risk, a higher risk with a late age at menopause, and no association with other reproductive factors.
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Anticonceptivos Orales/administración & dosificación , Neoplasias Ováricas/epidemiología , Historia Reproductiva , Adulto , Femenino , Humanos , Menopausia , Persona de Mediana Edad , Paridad , Embarazo , RiesgoRESUMEN
AIMS/HYPOTHESIS: In a high-fat-fed rat model of type 2 diabetes we noted increased exocrine duct replication. This is a predisposing factor for pancreatitis and pancreatic cancer, both of which are more common in type 2 diabetes. The aim of the study reported here was to establish if obesity and/or type 2 diabetes are associated with increased pancreatic ductal replication in humans. METHODS: We obtained pancreas at autopsy from 45 humans, divided into four groups: lean (BMI <25 kg/m(2)); obese (BMI >27 kg/m(2)); non-diabetic; and with type 2 diabetes. Pancreases were evaluated after immunostaining for the duct cell marker cytokeratin and Ki67 for replication. RESULTS: We show for the first time that both obesity and type 2 diabetes in humans are associated with increased pancreatic ductal replication. Specifically, we report that (1) replication of pancreatic duct cells is increased tenfold by obesity, and (2) lean subjects with type 2 diabetes demonstrate a fourfold increase in replication of pancreatic duct cells compared with their lean non-diabetic controls. CONCLUSIONS/INTERPRETATION: Pancreatic duct cell replication is increased in humans in response to both obesity and type 2 diabetes, potentially providing a mechanism for the increased risk of pancreatitis and pancreatic cancer in those with obesity and/or type 2 diabetes.
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Diabetes Mellitus Tipo 2/patología , Obesidad/patología , Conductos Pancreáticos/patología , Anciano , Anciano de 80 o más Años , Animales , Autopsia , Índice de Masa Corporal , División Celular , Diabetes Mellitus Tipo 2/fisiopatología , Modelos Animales de Enfermedad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Obesidad/fisiopatología , Conductos Pancreáticos/fisiopatología , RatasRESUMEN
AIMS/HYPOTHESIS: We sought to establish the extent and basis for adaptive changes in beta cell numbers in human pregnancy. METHODS: Pancreas was obtained at autopsy from women who had died while pregnant (n = 18), post-partum (n = 6) or were not pregnant at or shortly before death (controls; n = 20). Pancreases were evaluated for fractional pancreatic beta cell area, islet size and islet fraction of beta cells, beta cell replication (Ki67) and apoptosis (TUNEL), and indirect markers of beta cell neogenesis (insulin-positive cells in ducts and scattered beta cells in pancreas). RESULTS: The pancreatic fractional beta cell area was increased by approximately 1.4-fold in human pregnancy, with no change in mean beta cell size. In pregnancy there were more small islets rather than an increase in islet size or beta cells per islet. No increase in beta cell replication or change in beta cell apoptosis was detected, but duct cells positive for insulin and scattered beta cells were increased with pregnancy. CONCLUSIONS/INTERPRETATION: The adaptive increase in beta cell numbers in human pregnancy is not as great as in most reports in rodents. This increase in humans is achieved by increased numbers of beta cells in apparently new small islets, rather than duplication of beta cells in existing islets, which is characteristic of pregnancy in rodents.
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Células Secretoras de Insulina/citología , Células Secretoras de Insulina/metabolismo , Insulina/metabolismo , Adolescente , Adulto , Apoptosis , Recuento de Células , Proliferación Celular , Tamaño de la Célula , Femenino , Humanos , Inmunohistoquímica , EmbarazoRESUMEN
AIMS/HYPOTHESIS: We sought to establish the relationship between fasting plasma glucose concentrations and pancreatic fractional beta cell area in adult cynomolgus monkeys (Macaca fascicularis). METHODS: Fasting plasma glucose and pancreatic fractional beta cell area were measured in 18 control and 17 streptozotocin-treated adult primates (17.0 +/- 1.2 vs 15.4 +/- 1.2 years old). RESULTS: Fasting plasma glucose was increased (12.0 +/- 2.0 vs 3.4 +/- 0.1 mmol/l, p < 0.01) and fractional beta cell area was decreased (0.62 +/- 0.13% vs 2.49 +/- 0.35%, p < 0.01) in streptozotocin-treated monkeys. The relationship between fasting plasma glucose and pancreatic fractional beta cell area was described by a wide range of beta cell areas in controls. In streptozotocin-treated monkeys there was an inflection of fasting blood glucose at approximately 50% of the mean beta cell area in controls with a steep increase in blood glucose for each further decrement in beta cell area. CONCLUSIONS/INTERPRETATION: In adult non-human primates a decrement in fractional beta cell area of approximately 50% or more leads to loss of glycaemic control.
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Glucemia/metabolismo , Hiperglucemia/sangre , Células Secretoras de Insulina/patología , Animales , Diabetes Mellitus Experimental/patología , Ayuno , Humanos , Hiperglucemia/patología , Células Secretoras de Insulina/citología , Células Secretoras de Insulina/fisiología , Macaca fascicularis , MasculinoRESUMEN
INTRODUCTION: This study aimed to illustrate the validity of the treatment with vertebroplasty (VP) in patients with aggressive or symptomatic vertebral hemangioma (VH) with or without epidural extension. METHODS: From January 2003 to December 2007, 24 consecutive patients have been treated with VP, for a total of 36 vertebral bodies affected by VH: two cervical, ten dorsal, 24 lumbar. All the patients complained of a pain syndrome resistant to continuous medical medication; four of 24 patients also presented aggressive magnetic resonance features of the vertebral lesion and two patients showed also epidural extension. A unipedicular approach has been performed in 16 patients; a bipedicular approach has been performed in six, while for the cervical spine an anterior-lateral approach with manual dislocation of the carotid axis has always been performed. Bone biopsy was never done. All procedures have been carried out with local anesthesia, except for the treatment of the cervical hemangiomas which has always been performed under general anesthesia. Four vertebral bodies in the same session have been treated in one case. RESULTS: Results have been evaluated with the visual analog scale and the Oswestry Disability Index methods. In all the patients, in the following 24-72 h, a successful outcome has been observed with a complete resolution of pain symptom. Extravertebral vascular or discal cement leakage has been observed in four patients, without any onset of clinical radicular syndrome due to epidural diffusion. Clinical and radiological follow-up until 4 years has been performed in 12 patients and it showed stability of the treatment and absence of pain. CONCLUSIONS: Percutaneous treatment with VP for aggressive and symptomatic vertebral hemangiomas even with epidural extension is a valuable, mini-invasive, and quick method that allows a complete and enduring resolution of the painful vertebral symptoms without findings of fracture of a vertebral body adjacent or distant to the one treated.
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Hemangioma/cirugía , Neoplasias de la Columna Vertebral/cirugía , Vertebroplastia/métodos , Evaluación de la Discapacidad , Epidermis/patología , Femenino , Estudios de Seguimiento , Hemangioma/complicaciones , Hemangioma/patología , Humanos , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Procedimientos Quirúrgicos Mínimamente Invasivos/métodos , Dolor/etiología , Dolor/cirugía , Neoplasias de la Columna Vertebral/complicaciones , Neoplasias de la Columna Vertebral/patología , Columna Vertebral/patología , Columna Vertebral/cirugía , Resultado del TratamientoRESUMEN
BACKGROUND AND AIMS: Clinical studies suggest that menstrual irregularities are associated with metabolic and hormonal abnormalities, insulin resistance and a hyperestrogenic/hyperandrogenic imbalance, that may influence the risk of cardiovascular disease. METHODS AND RESULTS: The association of these abnormalities with the metabolic syndrome suggests that information on lipid patterns at different menstrual cycle length may be of interest in identifying women at higher cardiovascular risk. The association of lipid patterns with menstrual cycle length was evaluated in a cohort of 5062 women participating in the Progetto ATENA Study. Questions were administered to the participants about their cycle lengths at different periods of time over their reproductive life. The period between 20 and 50 years was investigated: normal cycle length was defined as short (
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Lípidos/sangre , Lipoproteínas/sangre , Ciclo Menstrual , Adulto , Anciano , Índice de Masa Corporal , Enfermedades Cardiovasculares/etiología , Estudios de Cohortes , Femenino , Humanos , Persona de Mediana Edad , Triglicéridos/sangreRESUMEN
BACKGROUND: Nutrient determinants of postprandial triglyceride (TG) are matter of debate, especially for type II diabetes. OBJECTIVE: This study was performed to evaluate the impact of dietary habits on postprandial TG response in a population-based sample of type II diabetic patients. DESIGN: One-hundred and forty type II diabetic patients (63 men/77 women, age 45-70 years) referring to the same health district, not on hypolipidemic drugs and without any other chronic disease, performed four TG profiles (at fasting, before, 2 and 3 h after lunch) with a specific device (Accutrend GCT, Roche Diagnostics Mannheim, Germany) validated previously. Dietary habits were recorded by a dietitian utilizing a previously validated semiquantitative questionnaire. RESULTS: Triglyceride values (mmol/l, mean +/- s.d.) were 2.22 +/- 0.93 at fasting, decreased before lunch (2.03 +/- 0.81), reached peak values 3 h after lunch (2.73 +/- 1.11). Postprandial TG increments (3 h after lunch minus pre-lunch concentration) significantly correlated with the intake (g/day) of animal protein (r = 0.20, P < 0.02), total fat (r = 0.21, P < 0.01), animal fat (r = 0.19, P < 0.03) and vegetable fat (r = 0.19, P < 0.03), also after adjusting for fasting TG and high-density lipoprotein cholesterol levels. Expressing nutrient intake as percentage of total calorie intake, total and animal fat remained significantly and directly related to postprandial TG increment (r = 0.21, P < 0.01 for total fat; r = 0.19, P < 0.03 for animal fat) whereas the percentage of carbohydrates was inversely related (r = -0.23, P < 0.007). CONCLUSIONS: Fat intake seems the major nutritional determinant of postprandial TG response in type II diabetic patients.
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Diabetes Mellitus Tipo 2/sangre , Grasas de la Dieta/farmacocinética , Periodo Posprandial , Triglicéridos/sangre , Anciano , Área Bajo la Curva , Glucemia/metabolismo , Enfermedades Cardiovasculares/epidemiología , Colesterol/sangre , Grasas de la Dieta/metabolismo , Ayuno/sangre , Conducta Alimentaria , Femenino , Hemoglobina Glucada/análisis , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Encuestas y CuestionariosRESUMEN
OBJECTIVE: The aim in this study was to assess the association between individual plasma carotenoid levels (alpha-carotene, beta-carotene, lycopene, beta-cryptoxanthin, lutein, zeaxanthin) and fruit and vegetable intakes recorded by a calibrated food questionnaire (FQ) and 24-h dietary recall records (24HDR) in nine different European countries with diverse populations and widely varying intakes of plant foods. DESIGN: A stratified random subsample of 3089 men and women from nine countries participating in the European Prospective Investigation into Cancer and Nutrition (EPIC), who had provided blood samples and dietary and other lifestyle information between 1992 and 2000, were included. RESULTS: beta-Cryptoxanthin was most strongly correlated with total fruits (FQ r = 0.52, 24HDR r = 0.39), lycopene with tomato and tomato products (FQ r = 0.38, 24HDR r = 0.25), and alpha-carotene with intake of root vegetables (r = 0.39) and of total carrots (r = 0.38) for FQ only. Based on diet measured by FQ and adjusting for possible confounding by body mass index (BMI), age, gender, smoking status, alcohol intake, and energy intake, the strongest predictors of individual plasma carotenoid levels were fruits (R(partial)(2) = 17.2%) for beta-cryptoxanthin, total carrots ((partial)(2) = 13.4%) and root vegetables (R(partial)(2) = 13.3%) for alpha-carotene, and tomato products (R(partial)(2) = 13.8%) for lycopene. For 24HDR, the highest R(partial)(2) was for fruits in relation to beta-cryptoxanthin (7.9%). CONCLUSIONS: Intakes of specific fruits and vegetables as measured by food questionnaires are good predictors of certain individual plasma carotenoid levels in our multicentre European study. At individual subject levels, FQ measurements of fruits, root vegetables and carrots, and tomato products are, respectively, good predictors of beta-cryptoxanthin, alpha-carotene, and lycopene in plasma.
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Antioxidantes/metabolismo , Carotenoides/sangre , Frutas , Verduras , Consumo de Bebidas Alcohólicas , Biomarcadores/sangre , Índice de Masa Corporal , Estudios de Cohortes , Estudios Transversales , Criptoxantinas , Femenino , Humanos , Estilo de Vida , Luteína/sangre , Masculino , Recuerdo Mental , Persona de Mediana Edad , Estudios Prospectivos , Estaciones del Año , Fumar , Encuestas y Cuestionarios , Xantófilas , Zeaxantinas , beta Caroteno/análogos & derivados , beta Caroteno/sangreRESUMEN
BACKGROUND AND PURPOSE: Studies on cardiovascular disease have preferentially involved men because of the lower frequency of the disease in preelderly women. The aim of this analysis was to examine, with the use of a standardized ultrasound protocol, a cohort of women to differentiate early atherosclerotic lesions in different carotid segments in relation to traditional (lipoprotein abnormalities, high blood pressure, cigarette smoking) and nontraditional (oxidation markers) cardiovascular risk factors. METHODS: More than 5000 clinically healthy, middle-aged women (n=5062; age range, 30 to 69 years) living in the area of Naples in southern Italy participated in the Progetto Atena, a population-based study on the etiology of cardiovascular disease and cancer in the female population. A subsample of 310 participants underwent high-resolution B-mode ultrasound to assess intima-media thickness of common carotid artery and carotid bifurcation. RESULTS: Early atherosclerotic plaques (intima-media thickness >1.2 mm) were detected within the common carotid arteries in 37 women, in the carotid bifurcations in 77 women, and in both sites in 91 women. After age adjustment, common carotid plaques were found to be associated with higher systolic blood pressure (143 versus 138 mm Hg; P<0.05) and higher body mass index (29 versus 27 kg/m(2); P<0.01), while lesions at the carotid bifurcations were associated with higher LDL cholesterol (4.3 versus 3.8 mmol/L; P<0.01) and with smoking habit. Multivariate odds ratios for the presence of common carotid plaques were related to antibodies against oxidized LDL (odds ratio, 2.72; 95% CI, 1.46 to 5.07), and those for plaques at the bifurcation were related to lipid peroxides (odds ratio, 1.90; 95% CI, 1.04 to 3.47), and both relationships were independent of age, LDL cholesterol concentrations, body mass index, smoking habit, and systolic blood pressure. CONCLUSIONS: In a cohort of clinically healthy, middle-aged women, we found a site-specific association of traditional risk factors and oxidation markers with early atherosclerotic lesions in arterial segments differing in geometry, shear stress, extracellular matrix composition, and cell type populations.
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Enfermedades de las Arterias Carótidas/diagnóstico , Enfermedades de las Arterias Carótidas/epidemiología , Arteria Carótida Común/diagnóstico por imagen , Adulto , Distribución por Edad , Anciano , Autoanticuerpos/sangre , Biomarcadores/sangre , Presión Sanguínea , Índice de Masa Corporal , Enfermedades de las Arterias Carótidas/sangre , LDL-Colesterol/sangre , Estudios de Cohortes , Femenino , Humanos , Italia/epidemiología , Peróxidos Lipídicos/sangre , Lipoproteínas LDL/inmunología , Persona de Mediana Edad , Análisis Multivariante , Oportunidad Relativa , Prevalencia , Factores de Riesgo , Fumar/epidemiología , Ultrasonografía Doppler de PulsoRESUMEN
The association between serum selenium concentration and a number of coronary heart disease risk factors is studied in 364 males from southern Italy participating in the Olivetti Heart Study. Selenium correlates positively and significantly with serum cholesterol (r = 0.120; P = 0.022), and this positive association persists after adjustment for age and body mass index. Selenium levels in heavy smokers are lower than both light smokers and current non-smokers, but these differences do not reach statistical significance. Selenium is not significantly associated with any of the other CHD risk factors (e.g., triglycerides, HDL cholesterol, blood pressure, age, and body mass index). It is hypothesized that the association between selenium and serum cholesterol reported in this and previous studies could be due to dietary interrelationships between selenium intake and foods that affect serum cholesterol concentrations.
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Enfermedad Coronaria/sangre , Selenio/sangre , Adulto , Índice de Masa Corporal , Colesterol/sangre , Humanos , Italia , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Factores de Riesgo , FumarRESUMEN
The relative validity of multiple telephone 24-hour dietary recalls was evaluated in a feasibility study within the framework of a large prospective investigation on the cause of chronic disease in women. Forty-nine women were interviewed four times both face-to-face and by telephone. Comparison of the total number of calories and intake of protein, carbohydrate, total and saturated fats, cholesterol, fiber, sodium, potassium, calcium, vitamin A, and vitamin C as estimated by multiple face-to-face and telephone interviews revealed an acceptable relative validity for the telephone procedure. Analysis of the position variation in the distribution (percent agreement) comparing the two procedures showed that a change in the distribution of none or one quintile occurs in more than 70% of individuals for all nutrients but vitamin C (69.4%), cholesterol (61.2%), and vitamin A (51.4%). Correlation coefficient analysis showed similar results. Adjustment for nutrient densities did not affect the overall results. Multiple 24-hour telephone dietary recalls appear to be a valid alternative to face-to-face interviews in population studies.
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Encuestas sobre Dietas , Entrevistas como Asunto , Teléfono , Adulto , Anciano , Estudios de Factibilidad , Femenino , Humanos , Persona de Mediana Edad , Reproducibilidad de los ResultadosRESUMEN
The relationship between coffee consumption and blood lipids was analyzed in a sample of 900 male workers of southern Italy participating in the Olivetti Heart Study. In the univariate analysis, coffee drinkers (n = 856) had higher values for body mass index (P < or = 0.05) and number of cigarettes smoked per day (P < or = 0.001) and lower levels of serum high-density-lipoprotein cholesterol (P < or = 0.05), compared to noncoffee drinkers (n = 44). In addition, coffee consumption (cups/d) was positively related to serum triglyceride levels (r = 0.105, P < or = 0.01) and cigarette smoking (r = 0.491, P < or = 0.01), and was inversely related to age (r = -0.122, P < or = 0.01). After multivariate adjustment, coffee consumption remained significantly related to age, cigarette smoking, and body mass index (data not shown). After stratification for smoking status, a significant positive linear trend between coffee consumption and serum total cholesterol was observed only in smokers. No significant trend was observed for serum triglycerides and high-density-lipoprotein cholesterol with coffee intake according to smoking status. This finding suggests that the relationship between coffee consumption and serum total cholesterol may change with the smoking status.
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Café/efectos adversos , Lípidos/sangre , HDL-Colesterol/sangre , LDL-Colesterol/sangre , Femenino , Humanos , Italia , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Fumar/efectos adversos , Triglicéridos/sangreRESUMEN
Data from eight randomised trials on high-dose chemotherapy (HDC) for metastatic breast cancer (MBC) have been published, but only seven studies are evaluable after the Bezwoda trial was discredited. Moreover, overall survival (OS) has been evaluated in only four out of seven studies since three had a crossover design. OS was similar for the HDC and standard-dose chemotherapy (SDC) group in the four evaluable trials, while disease-free survival (DFS) was improved in the HDC group in six of the seven trials. The delay in relapse for patients with metastatic disease represents an important clinical outcome; furthermore, since none of the reported studies randomised more than 220 patients, their statistical power may have been too limited to detect meaningful survival differences. Finally, preliminary experiences have shown that HDC seems to be the ideal platform upon which to build novel therapies. In conclusion, HDC remains an important field of clinical research for breast cancer patients with stage IV disease and, from the studies reported in this article, there is some evidence for offering this therapeutic modality to selected patients who are interested in a medically aggressive approach.
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Antineoplásicos/administración & dosificación , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/secundario , Femenino , Humanos , Ensayos Clínicos Controlados Aleatorios como AsuntoRESUMEN
The objective of the study was to compare lipoprotein(a) [Lp(a)] concentrations in population-based samples of individuals with non-insulin-dependent diabetes mellitus (NIDDM), borderline hyperglycemia, and normoglycemia. From 2,740 male Italian Telephone Company employees aged 40 to 59 years participating in a health screening, we selected all those with NIDDM (n = 100) plus a random sample of 950 nondiabetic individuals. Diabetes was defined as fasting plasma glucose (FPG) of at least 140 mg/dL or current use of hypoglycemic drugs. Among nondiabetic individuals, 854 were defined as normoglycemic (FPG < 115 mg/dL) and 95 were defined as borderline hyperglycemic (115 < FPG < 140 mg/dL). Lp(a) level was measured on frozen plasma by enzyme-linked immunosorbent assay. Lp(a) concentrations were similar in people with NIDDM, borderline hyperglycemia, and normoglycemia: 11.2 +/- 14, 14.1 +/- 20, and 13.9 +/- 18 mg/dL, respectively (F = 1.03). Accordingly, the proportion of subjects with Lp(a) levels of at least 30 mg/dL was comparable in the three groups (12%, 15%, and 14%; chi 2 = 3.95, P = .41). Results were not confounded by differences in age, body mass index (BMI), waist to hip ratio, plasma lipids, alcohol consumption, physical activity, and use of drugs. Furthermore, within the diabetic group Lp(a) levels were not significantly different for those on diet only versus those on oral agents (10.8 +/- 14.1 v 11.7 +/- 14.7, P = .7) or for people with FPG of at least 180 as compared with people with FPG less than 180 mg/dL (9.9 +/- 12.8 v 11.5 +/- 14.8, P = .5).(ABSTRACT TRUNCATED AT 250 WORDS)
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Diabetes Mellitus Tipo 2/sangre , Hiperglucemia/sangre , Lipoproteína(a)/sangre , Adulto , Glucemia/análisis , Índice de Masa Corporal , Ensayo de Inmunoadsorción Enzimática , Humanos , Masculino , Persona de Mediana EdadRESUMEN
STUDY OBJECTIVE: EURALIM (EURope ALIMentation), a European collaborative study, aimed to determine and describe the extent to which European data on risk factor distributions from different populations could be pooled and harmonised in a common database for international comparisons. SETTING: Seven independent population-based surveys from six European countries (France, Italy, Northern Ireland/United Kingdom, Spain, Switzerland, the Netherlands). METHODS: Data for 18 381 women and 12 908 men aged 40-59 were pooled in a common database. Central statistical analyses on major cardiovascular risk factors were conducted with careful consideration of methodological issues, including differences in study designs, data assessment tools, and analytic techniques used. MAIN RESULTS: Because of the detected variability among methods used, direct comparisons of risk factor distributions and prevalences between studies were problematic. None the less, comparisons of within population contrasts by sex, age group, and other health determinants were considered to be meaningful and apt, as illustrated here for obesity. Results were targeted and disseminated to both the general public and public health professionals and framed in the context of a European information campaign. CONCLUSIONS: International and national comparisons between existing locally run studies are feasible and useful, but harmonisation methods need improvement. Development of an international risk factor surveillance programme based on decentralised data collection is warranted. In the meantime, risk factor contrasts across populations can be used as a basis for targeting needed public health intervention programmes.
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Enfermedades Cardiovasculares/epidemiología , Obesidad/epidemiología , Adulto , Enfermedades Cardiovasculares/etiología , Colesterol/efectos adversos , Colesterol/sangre , Bases de Datos como Asunto/normas , Dieta/efectos adversos , Dieta/normas , Europa (Continente)/epidemiología , Femenino , Humanos , Hipertensión/epidemiología , Masculino , Persona de Mediana Edad , Obesidad/complicaciones , Factores de Riesgo , Fumar/efectos adversosRESUMEN
The association between serum uric acid and hypertension was evaluated in a sample of male workers in southern Italy enrolled in the Olivetti Heart Study, an ongoing longitudinal epidemiological investigation on risk factors for coronary heart disease carried out at the Olivetti factory in the suburban area of Naples. Participants were screened at baseline (1975) and at five year (1980) and 12 year (1987) follow-up examinations. The present report focuses on 619 male workers for whom information on coronary heart disease risk factors was available both at baseline and 12 year follow-up examination. At baseline, after excluding hypertensive participants (systolic blood pressure (SBP) > or = 140 mmHg and/or diastolic blood pressure (DBP), > or = 90 mmHg and/or on antihypertensive therapy; n = 72), serum uric acid was positively and significantly related to age, SBP, DBP, body mass index (BMI), serum total cholesterol (CHOL) and serum triglycerides (TG) in 547 normotensive participants. At 12 year follow-up examination, hypertension was defined by SBP > or = 140 mmHg and/or DBP > or = 90 mmHg and/or being on antihypertensive therapy. Multiple logistic regression analysis showed an independent positive association between serum uric acid levels and development of hypertension (RR = 1.23, 95% CI = 1.07-1.39; p = 0.011) after adjustment for age, BMI, CHOL and TG. Furthermore, according to more severe degrees of hypertension (SBP > or = 160 mmHg and/or DBP > or = 95 mmHg and/or being on antihypertensive therapy), the relative risk to develop hypertension was still significant (RR = 1.19; CI = 1.01-1.38; p = 0.051).(ABSTRACT TRUNCATED AT 250 WORDS)
Asunto(s)
Hipertensión/etiología , Ácido Úrico/sangre , Adulto , Humanos , Hipertensión/sangre , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Estudios ProspectivosRESUMEN
OBJECTIVE: To determine and describe the extent to which European dietary data collected in disparate surveys can be meaningfully compared. DESIGN: Seven independent population-based surveys from six European countries were initially included. Differences in study designs and methodological approaches were examined. Risk factor data for 31,289 adults aged 40-59 y were harmonized and pooled in a common, centralized database. RESULTS: Direct comparisons of dietary measures across studies were not deemed appropriate due to methodological heterogeneity. Nonetheless, comparisons of intra-population contrasts by gender across sites were considered valid. Women consumed fruit and vegetables more often than men. Age-standardized gender differences in the prevalence of low fruit and vegetable consumption ranged from 7 to 18% and 5 to 15%, respectively. Data on energy intake showed good agreement across study populations. The proportion of total energy from macronutrients was similar for women and men. Gender differences for relative intakes of saturated fatty acids (percentage energy) were small and only in France were they significant. Dietary fibre density was significantly higher in women than in men. Overall, the participating Southern European populations from Italy and Spain exhibited more healthful food composition patterns. CONCLUSIONS: Contrasts in dietary patterns by gender across populations may provide the basis for health promotion campaigns. The most favourable patterns observed may serve as attainable goals for other populations. An international risk factor surveillance programme based upon locally run, good quality studies has the potential to provide the needed data. SPONSORSHIP: European Community (DG V), project 96CVVF3-446-0; Swiss Federal Office for Education and Science, OFES 96.0089.
Asunto(s)
Encuestas sobre Dietas , Dieta , Adulto , Grasas de la Dieta/administración & dosificación , Fibras de la Dieta/administración & dosificación , Ingestión de Energía , Europa (Continente) , Conducta Alimentaria , Femenino , Frutas , Humanos , Masculino , Persona de Mediana Edad , Fenómenos Fisiológicos de la Nutrición , Proyectos de Investigación , VerdurasRESUMEN
The use of GH treatment in subjects with a GH deficiency has led to contrasting results concerning its impact to develop thyroid hyperfunction, whereas many others have underlined the possible onset of hypothyroidism. A number of studies have been carried out over short periods in subjects with multiple tropin deficiencies, in healthy adults or adults with GH deficiencies, in healthy adults or adults with GH deficiencies. The aim of the present study was to assess the effect of prolonged treatment with biosynthetic GH on thyroid function in children with an isolated idiopathic GH deficiency. The study included 8 children (mean age 10.4 +/- 0.8 years) with GH deficiencies treated with biosynthetic GH and 8 children with familial retarded stature of a similar age (mean age 10.3 +/- 0.7 years) who represented the control group. Serum levels of T3, T4, FT3, FT4 and TSH were measured at the start of the study and after one year of continuous GH treatment in subjects with GH deficiency; the same tests were performed in the control group on recruitment and after one year's observation without therapy. T4 and FT4 levels diminished, but not significantly, whereas there was a significant increase in plasma levels of T3 and FT3 (p less than 0.01); TSH values were significantly reduced in the treated group (p = 0.025). No significant variations in thyroid parameters were found in the control group. These data support the hypothesis of an increased peripheral conversion of T4 into T3 due to GH therapy; in conclusion, however, no significant variation in thyroid function was observed following GH replacement therapy, even if prolonged, in subjects with an idiopathic isolated GH deficiency.