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1.
Am J Bot ; 110(2): e16121, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36541247

RESUMO

PREMISE: The interfertile species Anacyclus clavatus, A. homogamos, and A. valentinus represent a plant complex coexisting in large anthropic areas of the western Mediterranean Basin with phenotypically mixed populations exhibiting a great floral variation. The goal of this study was to estimate the genetic identity of each species, to infer the role of hybridization in the observed phenotypic diversity, and to explore the effect of climate on the geographic distribution of species and genetic clusters. METHODS: We used eight nuclear microsatellites to genotype 585 individuals from 31 populations of three Anacyclus species for population genetic analyses by using clustering algorithms based on Bayesian models and ordination methods. In addition, we used ecological niche models and niche overlap analyses for both the species and genetic clusters. We used an expanded data set, including 721 individuals from 129 populations for ecological niche models of the genetic clusters. RESULTS: We found a clear correspondence between species and genetic clusters, except for A. clavatus that included up to three genetic clusters. We detected individuals with admixed genetic ancestry in A. clavatus and in mixed populations. Ecological niche models predicted similar distributions for species and genetic clusters. For the two specific genetic clusters of A. clavatus, ecological niche models predicted remarkably different areas. CONCLUSIONS: Gene flow between Anacyclus species likely explains phenotypic diversity in contact areas. In addition, we suggest that introgression could be involved in the origin of one of the two A. clavatus genetic clusters, which also showed ecological differentiation.


Assuntos
Ecossistema , Deriva Genética , Teorema de Bayes , Clima , Análise por Conglomerados , Variação Genética
2.
Clin Exp Dermatol ; 46(2): 300-305, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32840927

RESUMO

BACKGROUND: Capillary malformation-arteriovenous malformation (CM-AVM) syndrome is a rare syndrome with characteristic skin lesions that are associated with fast-flow vascular malformations (FFVMs) in one-third of patients. Few case series have been described, and none in Spain. AIM: To identify the prevalence of dermatological parameters, FFVMs and associated features in a large series of patients with CM-AVM. METHODS: We conducted an observational study of patients with CM-AVM syndrome diagnosed in 15 Spanish hospitals over 3 years. The main clinical, radiological, genetic findings and associated diseases were analysed. RESULTS: In total, 64 patients were assessed. In 26.5% of cases, the diagnosis was incidental. In 75% of patients, there was one significantly larger macule, which we termed the 'herald patch'. FFVMs were detected in 34% of the patients, with 30% located on the skin, 7.8% in the brain and in 1.5% in the spine. There was a positive family history in 65% of the 64 patients. Genetic analysis was performed for RASA1 mutations in 57 patients, of whom 42 (73%) had a positive result. All 4 patients tested for EPHB4 mutations had a positive result. No tumour lesions were detected in the series, except for five infantile haemangiomas. CONCLUSIONS: Our data on clinical lesions, associated FFVM, family history and genetics are similar to those previously published in the literature. An extensive data analysis failed to demonstrate any statistically significant association between the presence of an FFVM and any clinical, familial or genetic parameter that could predict its onset, although a link between the presence of a herald patch on the midline face and the presence of a brain FFVM was observed. We did not detect any genotype-phenotype correlation.


Assuntos
Malformações Arteriovenosas/patologia , Encéfalo/patologia , Capilares/anormalidades , Mancha Vinho do Porto/patologia , Pele/patologia , Coluna Vertebral/patologia , Malformações Vasculares/patologia , Adulto , Malformações Arteriovenosas/diagnóstico , Malformações Arteriovenosas/epidemiologia , Malformações Arteriovenosas/genética , Encéfalo/irrigação sanguínea , Capilares/patologia , Criança , Pré-Escolar , Análise de Dados , Feminino , Estudos de Associação Genética , Humanos , Achados Incidentais , Lactente , Masculino , Mutação , Mancha Vinho do Porto/diagnóstico , Mancha Vinho do Porto/epidemiologia , Mancha Vinho do Porto/genética , Prevalência , Receptor EphB4/genética , Pele/irrigação sanguínea , Espanha/epidemiologia , Coluna Vertebral/irrigação sanguínea , Malformações Vasculares/diagnóstico , Malformações Vasculares/genética , Proteína p120 Ativadora de GTPase/genética
3.
Am J Bot ; 107(1): 116-125, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31903550

RESUMO

PREMISE: Gynomonoecy is an infrequent sexual system in angiosperms, although widely represented within the Asteraceae family. Currently, the hypothesis of two nuclear loci controling gynomonoecy is the most accepted. However, the genic interactions are still uncertain. Anacyclus clavatus, A. homogamos, and A. valentinus differ in their sexual system and floral traits. Here, we investigate the inheritance of gynomonoecy in this model system to understand its prevalence in the family. METHODS: We selected six natural populations (two per species) for intra- and interspecific experimental crosses, and generated a total of 1123 individuals from the F1 generation, F2 , and backcrosses for sexual system characterization. The frequency of gynomonoecy observed for each cross was tested to fit different possible hypotheses of genic interaction. Additionally, the breeding system and the degree of reproductive isolation between these species were assessed. RESULTS: Complementary epistasis, in which two dominant alleles are required for trait expression, explained the frequencies of gynomonoecy observed across all generations. The heterozygosity inferred in Anacyclus valentinus, as well as its lower and variable seed set, is congruent with its hybrid origin. CONCLUSIONS: In our model system gynomonoecy is controlled by complementary epistasis of two genes. A common origin of this sexual system in Asteraceae, in which genic duplications, mutations, and hybridization between lineages played a key role, is hypothesized whereas independent evolutionary pathways and possibly diverse underlying genetic factors are suggested for gynomonoecy expression in other angiosperm families.


Assuntos
Asteraceae , Evolução Biológica , Cruzamento , Flores , Fenótipo , Sementes
4.
Eur J Nutr ; 59(7): 2893-2904, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31701336

RESUMO

PURPOSE: Advanced glycation end products (AGEs) can be formed in foods by the reaction of reducing sugars with proteins, and have been shown to induce insulin resistance and obesity in experimental studies. We examined the association between dietary AGEs intake and changes in body weight in adults over an average of 5 years of follow-up. METHODS: A total of 255,170 participants aged 25-70 years were recruited in ten European countries (1992-2000) in the PANACEA study (Physical Activity, Nutrition, Alcohol, Cessation of smoking, Eating out of home in relation to Anthropometry), a sub-cohort of the EPIC (European Prospective Investigation into Cancer and Nutrition). Body weight was measured at recruitment and self-reported between 2 and 11 years later depending on the study center. A reference database for AGEs was used containing UPLC-MS/MS-measured Nε-(carboxymethyl)-lysine (CML), Nε-(1-carboxyethyl)-lysine (CEL), and Nδ-(5-hydro-5-methyl-4-imidazolon-2-yl)-ornithine (MG-H1) in 200 common European foods. This reference database was matched to foods and decomposed recipes obtained from country-specific validated dietary questionnaires in EPIC and intake levels of CEL, CML, and MG-H1 were estimated. Associations between dietary AGEs intake and body weight change were estimated separately for each of the three AGEs using multilevel mixed linear regression models with center as random effect and dietary AGEs intake and relevant confounders as fixed effects. RESULTS: A one-SD increment in CEL intake was associated with 0.111 kg (95% CI 0.087-0.135) additional weight gain over 5 years. The corresponding additional weight gain for CML and MG-H1 was 0.065 kg (0.041-0.089) and 0.034 kg (0.012, 0.057), respectively. The top six food groups contributing to AGEs intake, with varying proportions across the AGEs, were cereals/cereal products, meat/processed meat, cakes/biscuits, dairy, sugar and confectionary, and fish/shellfish. CONCLUSION: In this study of European adults, higher intakes of AGEs were associated with marginally greater weight gain over an average of 5 years of follow-up.


Assuntos
Peso Corporal , Dieta , Produtos Finais de Glicação Avançada , Adulto , Cromatografia Líquida , Europa (Continente) , Humanos , Estudos Prospectivos , Espectrometria de Massas em Tandem
5.
Ann Oncol ; 30(6): 983-989, 2019 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-31089709

RESUMO

BACKGROUND: Microseminoprotein-beta (MSP), a protein secreted by the prostate epithelium, may have a protective role in the development of prostate cancer. The only previous prospective study found a 2% reduced prostate cancer risk per unit increase in MSP. This work investigates the association of MSP with prostate cancer risk using observational and Mendelian randomization (MR) methods. PATIENTS AND METHODS: A nested case-control study was conducted with the European Prospective Investigation into Cancer and Nutrition (EPIC) with 1871 cases and 1871 matched controls. Conditional logistic regression analysis was used to investigate the association of pre-diagnostic circulating MSP with risk of incident prostate cancer overall and by tumour subtype. EPIC-derived estimates were combined with published data to calculate an MR estimate using two-sample inverse-variance method. RESULTS: Plasma MSP concentrations were inversely associated with prostate cancer risk after adjusting for total prostate-specific antigen concentration [odds ratio (OR) highest versus lowest fourth of MSP = 0.65, 95% confidence interval (CI) 0.51-0.84, Ptrend = 0.001]. No heterogeneity in this association was observed by tumour stage or histological grade. Plasma MSP concentrations were 66% lower in rs10993994 TT compared with CC homozygotes (per allele difference in MSP: 6.09 ng/ml, 95% CI 5.56-6.61, r2=0.42). MR analyses supported a potentially causal protective association of MSP with prostate cancer risk (OR per 1 ng/ml increase in MSP for MR: 0.96, 95% CI 0.95-0.97 versus EPIC observational: 0.98, 95% CI 0.97-0.99). Limitations include lack of complete tumour subtype information and more complete information on the biological function of MSP. CONCLUSIONS: In this large prospective European study and using MR analyses, men with high circulating MSP concentration have a lower risk of prostate cancer. MSP may play a causally protective role in prostate cancer.


Assuntos
Neoplasias da Próstata/sangue , Proteínas Secretadas pela Próstata/sangue , Biomarcadores Tumorais/sangue , Estudos de Casos e Controles , Seguimentos , Humanos , Masculino , Análise da Randomização Mendeliana/métodos , Pessoa de Meia-Idade , Estado Nutricional , Prognóstico , Estudos Prospectivos , Fatores de Risco
6.
J Hum Nutr Diet ; 32(4): 468-479, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-30663156

RESUMO

BACKGROUND: The influence of nutrition on breast cancer prognosis is still inconclusive and therefore dietary interventions incorporating dietary biomarkers are needed to confirm compliance with dietary goals and clarify biological mechanisms. The present study assessed whether a lifestyle intervention in breast cancer survivors could affect dietary biomarkers of fruit and vegetables and fatty acids. METHODS: In this phase II single-arm trial, 37 overweight/obese early stage breast cancer patients completed a 12-week diet and exercise intervention. The intervention involved 1-h weekly diet sessions delivered by a dietician and 75-min bi-weekly physical activity sessions of moderate-to-high intensity led by trained monitors. Before and after the intervention, three 24-h dietary recalls were carried out to calculate nutrient intakes and, in addition, blood samples were taken to measure plasma carotenoids, vitamin E and retinol concentrations and erythrocyte membrane fatty acid (EFA) composition. Wilcoxon signed rank tests were used to assess changes in dietary and biomarkers measurements over the intervention period. RESULTS: After the intervention, there was a significant increase in the intake of dietary carotenoids (+15.1% compared to baseline) but not plasma carotenoids levels (+6.3%). Regarding the EFA levels, we observed a significant decrease in percentage of saturated fatty acids (-1.4%) and n-6 polyunsaturated fatty acids (-2.9%) and an increase in monounsaturated fatty acids (1.7%) and total and long-chain n-3 polyunsaturated fatty acids (by 13.1% and 13.7%, respectively). A favourable decrease in the ratio of long-chain n-6 to n-3 polyunsaturated fatty acids (-9.1%) was also observed. CONCLUSIONS: After a short-term diet and exercise intervention in overweight/obese breast cancer survivors, we observed significant changes in dietary nutrients and fatty acid biomarkers, suggesting positive dietary changes that could be relevant for breast cancer prognosis.


Assuntos
Neoplasias da Mama/sangue , Carotenoides/sangue , Dieta/métodos , Membrana Eritrocítica/metabolismo , Ácidos Graxos/análise , Estilo de Vida , Adulto , Biomarcadores/sangue , Neoplasias da Mama/complicações , Sobreviventes de Câncer/psicologia , Dieta/psicologia , Ingestão de Energia , Exercício Físico , Feminino , Humanos , Pessoa de Meia-Idade , Obesidade/sangue , Obesidade/complicações , Obesidade/terapia , Sobrepeso/sangue , Sobrepeso/complicações , Sobrepeso/terapia , Cooperação do Paciente , Resultado do Tratamento , Adulto Jovem
7.
Spinal Cord ; 55(1): 79-86, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-27349606

RESUMO

STUDY DESIGN: This is an analytical descriptive study. OBJECTIVES: The main goal of this study was to compare the modular organization of bilateral lower limb control in incomplete spinal cord injury (iSCI) patients during overground walking, using muscle synergies analysis. The secondary goal was to determine whether the similarity between the patients and control group correlate with clinical indicators of walking performance. SETTING: This study was conducted in National Hospital for Spinal Cord Injury (Toledo, Spain). METHODS: Eight iSCI patients and eight healthy subjects completed 10 walking trials at matched speed. For each trial, three-dimensional motion analysis and surface electromyography (sEMG) analysis of seven leg muscles from both limbs were performed. Muscle synergies were extracted from sEMG signals using a non-negative matrix factorization algorithm. The optimal number of synergies has been defined as the minimum number needed to obtain variability accounted for (VAF) ⩾90%. RESULTS: When compared with healthy references, iSCI patients showed fewer muscle synergies in the most affected side and, in both sides, significant differences in the composition of synergy 2. The degree of similarity of these variables with the healthy reference, together with the composition of synergy 3 of the most affected side, presented significant correlations (P<0.05) with walking performance. CONCLUSION: The analysis of muscle synergies shows potential to detect differences between the two sides in patients with iSCI. Specifically, the VAF may constitute a new neurophysiological metric to assess and monitor patients' condition throughout the gait recovery process.


Assuntos
Marcha/fisiologia , Extremidade Inferior/fisiopatologia , Músculo Esquelético/fisiopatologia , Traumatismos da Medula Espinal/fisiopatologia , Acelerometria , Adulto , Algoritmos , Fenômenos Biomecânicos , Eletromiografia , Feminino , Lateralidade Funcional , Humanos , Masculino , Processamento de Sinais Assistido por Computador , Caminhada/fisiologia
9.
Eur Radiol ; 26(12): 4268-4276, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27384609

RESUMO

OBJECTIVES: To propose national diagnostic reference levels (DRLs) for interventional radiology and to evaluate the impact of the procedural complexity on patient doses. METHODS: Eight interventional radiology units from Spanish hospitals were involved in this project. The participants agreed to undergo common quality control procedures for X-ray systems. Kerma area product (KAP) was collected from a sample of 1,649 procedures. A consensus document established the criteria to evaluate the complexity of seven types of procedures. DRLs were set as the 3rd quartile of KAP values. RESULTS: The KAP (3rd quartile) in Gy cm2 for the procedures included in the survey were: lower extremity arteriography (n = 784) 78; renal arteriography (n = 37) 107; transjugular hepatic biopsies (THB) (n = 30) 45; biliary drainage (BD) (n = 314) 30; uterine fibroid embolization (UFE) (n = 56) 214; colon endoprostheses (CE) (n = 31) 169; hepatic chemoembolization (HC) (n = 269) 303; femoropopliteal revascularization (FR) (n = 62) 119; and iliac stent (n = 66) 170. The complexity involved the increases in the following KAP factors from simple to complex procedures: THB x4; BD x13; UFE x3; CE x3; HC x5; FR x5 and IS x4. CONCLUSIONS: The evaluation of the procedure complexity in patient doses will allow the proper use of DRLs for the optimization of interventional radiology. KEY POINTS: • National DRLs for interventional procedures have been proposed given level of complexity • For clinical audits, the level of complexity should be taken into account. • An evaluation of the complexity levels of the procedure should be made.


Assuntos
Angiografia/métodos , Angiografia/normas , Controle de Qualidade , Radiologia Intervencionista/métodos , Radiologia Intervencionista/normas , Feminino , Humanos , Doses de Radiação , Valores de Referência , Espanha , Inquéritos e Questionários
10.
J Eur Acad Dermatol Venereol ; 30(9): 1614-7, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27109743

RESUMO

BACKGROUND: Nail-patella syndrome (NPS) is an inherited disease produced by mutations in the LMX1B gene. It is characterized by fingernail dysplasia, hypoplastic or absent patella, dysplasia of the elbows and iliac horns on X-ray. It is useful to know this syndrome since some patients develop nephropathy and eye abnormalities. There are very few accurate descriptions related to this syndrome in the literature. OBJECTIVE: Describe the features of 11 patients with NPS in a paediatric hospital. METHODS: We retrospectively reviewed our clinical database of 11 patients with proven diagnosis of NPS from 1977 to 2014. Clinical and radiological features were assessed. RESULTS: Eleven children (seven male/four female) were included in the study. Mean age at the time of diagnosis was 6.54 years (range 0-11 years). Five patients had a family history of NPS. All patients had nail abnormalities (100%), the most frequent finding being hyponychia. Triangular lunulae were observed in four patients. The knee was the most commonly affected joint, aplasia or hypoplasia of the patella being the most usual findings. Only one patient presented renal involvement. The genetic study revealed three different LMX1B mutations. CONCLUSION: Nail-patella syndrome is a rare disorder. The aim of the present study is to highlight the importance of nail examination in children with skeletal dysplasias, in order to diagnose the NPS.


Assuntos
Síndrome da Unha-Patela/diagnóstico , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Síndrome da Unha-Patela/genética , Síndrome da Unha-Patela/patologia , Estudos Retrospectivos
11.
Spinal Cord ; 54(4): 277-82, 2016 04.
Artigo em Inglês | MEDLINE | ID: mdl-26282495

RESUMO

STUDY DESIGN: This is a prospective and comparative study between two groups. OBJECTIVES: The objective of this study was to compare the changes in shoulder joint forces and their moments, as well as any possible ultrasound changes, when subjects with spinal cord injury (SCI) and healthy controls (CG) undertake a high-intensity manual wheelchair propulsion test. SETTING: This study was conducted in an inpatient SCI rehabilitation center. METHODS: A group of 22 subjects with SCI at level T2 or below who use a manual wheelchair (MWU), categorized as AIS grade A or B, were compared with a CG of 12 healthy subjects. Subjects in each group performed a high-intensity wheelchair propulsion test. The variables analyzed were shoulder joint forces and the moments at the beginning and at the end of the test. Ultrasound variables before and after the propulsion test were also analyzed. Correlations were also drawn between the ultrasonography and demographic variables. RESULTS: In both groups, peak shoulder forces and moments increased after the test in almost all directions. No differences in the ultrasound parameters were found. A greater long-axis biceps tendon thickness (LBTT) was associated with more shoulder pain according to WUSPI or VAS (r=0.428, P<0.05 and r=0.452, P<0.05, respectively). CONCLUSIONS: Shoulder joint forces and moments increase after an intense propulsion task. In subjects with SCI, these increases center on forces with less chance of producing subacromial damage. No changes are produced in ultrasonography variables, whereas a poorer clinical and functional evaluation of the shoulder of the MWUs appears to be related to a thicker long-axis biceps tendon.


Assuntos
Fenômenos Biomecânicos/fisiologia , Articulação do Ombro/diagnóstico por imagem , Articulação do Ombro/fisiopatologia , Traumatismos da Medula Espinal/patologia , Cadeiras de Rodas , Adulto , Antropometria , Feminino , Humanos , Masculino , Músculo Esquelético/diagnóstico por imagem , Estudos Prospectivos , Traumatismos da Medula Espinal/diagnóstico por imagem , Estatística como Assunto , Ultrassonografia , Escala Visual Analógica
12.
Int J Cancer ; 137(3): 598-606, 2015 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-25557932

RESUMO

Several modifiable lifestyle factors, including smoking, alcohol, certain dietary factors and weight are independently associated with gastric cancer (GC); however, their combined impact on GC risk is unknown. We constructed a healthy lifestyle index to investigate the joint influence of these behaviors on GC risk within the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort. The analysis included 461,550 participants (662 first incident GC cases) with a mean follow-up of 11.4 years. A healthy lifestyle index was constructed, assigning 1 point for each healthy behavior related to smoking status, alcohol consumption and diet quality (represented by the Mediterranean diet) for assessing overall GC and also body mass index for cardia GC and 0 points otherwise. Risk of GC was calculated using Cox proportional hazards regression models while adjusting for relevant confounders. The highest versus lowest score in the healthy lifestyle index was associated with a significant lower risk of GC, by 51% overall (HR 0.49 95% CI 0.35, 0.70), by 77% for cardia GC (HR 0.23 95% CI 0.08, 0.68) and by 47% for noncardia GC (HR 0.53 (95% CI 0.32, 0.87), p-trends<0.001. Population attributable risk calculations showed that 18.8% of all GC and 62.4% of cardia GC cases could have been prevented if participants in this population had followed the healthy lifestyle behaviors of this index. Adopting several healthy lifestyle behaviors including not smoking, limiting alcohol consumption, eating a healthy diet and maintaining a normal weight is associated with a large decreased risk of GC.


Assuntos
Adenocarcinoma/epidemiologia , Adenocarcinoma/etiologia , Estilo de Vida , Risco , Neoplasias Gástricas/epidemiologia , Neoplasias Gástricas/etiologia , Adulto , Europa (Continente)/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Vigilância da População , Estudos Prospectivos
13.
Br J Cancer ; 112(7): 1273-82, 2015 Mar 31.
Artigo em Inglês | MEDLINE | ID: mdl-25742480

RESUMO

BACKGROUND: Vegetable and/or fruit intakes in association with hepatocellular carcinoma (HCC) risk have been investigated in case-control studies conducted in specific European countries and cohort studies conducted in Asia, with inconclusive results. No multi-centre European cohort has investigated the indicated associations. METHODS: In 486,799 men/women from the European Prospective Investigation into Cancer and nutrition, we identified 201 HCC cases after 11 years median follow-up. We calculated adjusted hazard ratios (HRs) for HCC incidence for sex-specific quintiles and per 100 g d(-1) increments of vegetable/fruit intakes. RESULTS: Higher vegetable intake was associated with a statistically significant, monotonic reduction of HCC risk: HR (100 g d(-1) increment): 0.83; 95% CI: 0.71-0.98. This association was consistent in sensitivity analyses with no apparent heterogeneity across strata of HCC risk factors. Fruit intake was not associated with HCC incidence: HR (100 g d(-1) increment): 1.01; 95% CI: 0.92-1.11. CONCLUSIONS: Vegetable, but not fruit, intake is associated with lower HCC risk with no evidence for heterogeneity of this association in strata of important HCC risk factors. Mechanistic studies should clarify pathways underlying this association. Given that HCC prognosis is poor and that vegetables are practically universally accessible, our results may be important, especially for those at high risk for the disease.


Assuntos
Carcinoma Hepatocelular/epidemiologia , Dieta/estatística & dados numéricos , Neoplasias Hepáticas/epidemiologia , Idoso , Carcinoma Hepatocelular/etiologia , Estudos de Casos e Controles , Estudos de Coortes , Europa (Continente)/epidemiologia , Feminino , Frutas , Humanos , Neoplasias Hepáticas/etiologia , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Verduras
14.
Ann Oncol ; 25(7): 1422-1428, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24718887

RESUMO

BACKGROUND: Experimental and epidemiological evidence suggests that prolactin might play a role in the etiology of breast cancer. We analyzed the relationship of prediagnostic circulating prolactin levels with the risk of breast cancer by menopausal status, use of postmenopausal hormone replacement therapy (HRT) at blood donation, and by estrogen and progesterone receptor status of the breast tumors. PATIENTS AND METHODS: Conditional logistic regression was used to analyze the data from a case-control study nested within the prospective European EPIC cohort, including 2250 invasive breast cancer and their matched control subjects. RESULTS: Statistically significant heterogeneity in the association of prolactin levels with breast cancer risk between women who were either pre- or postmenopausal at the time of blood donation was observed (Phet = 0.04). Higher serum levels of prolactin were associated with significant increase in the risk of breast cancer among postmenopausal women [odds ratio (OR)Q4-Q1 = 1.29 (95% confidence interval, CI, 1.05-1.58), Ptrend = 0.09]; however, this increase in risk seemed to be confined to women who used postmenopausal HRT at blood donation [ORQ4-Q1 = 1.45 (95% CI 1.08-1.95), Ptrend = 0.01], whereas no statistically significant association was found for the non-users of HRT [ORQ4-Q1 = 1.11 (95%CI 0.83-1.49), Ptrend = 0.80] (Phet = 0.08). Among premenopausal women, a statistically non-significant inverse association was observed [ORQ4-Q1 = 0.70 (95% CI 0.48-1.03), Ptrend = 0.16]. There was no heterogeneity in the prolactin-breast cancer association by hormone receptor status of the tumor. CONCLUSION: Our study indicates that higher circulating levels of prolactin among the postmenopausal HRT users at baseline may be associated with increased breast cancer risk.


Assuntos
Neoplasias da Mama/sangue , Pós-Menopausa , Pré-Menopausa , Prolactina/sangue , Neoplasias da Mama/etiologia , Estudos de Casos e Controles , Estudos de Coortes , Feminino , Humanos , Fatores de Risco
15.
Int J Cancer ; 132(12): 2918-27, 2013 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-23180513

RESUMO

Epidemiological evidence suggests that the Mediterranean diet (MD) could reduce the risk of breast cancer (BC). As evidence from the prospective studies remains scarce and conflicting, we investigated the association between adherence to the MD and risk of BC among 335,062 women recruited from 1992 to 2000, in ten European countries, and followed for 11 years on average. Adherence to the MD was estimated through an adapted relative Mediterranean diet (arMED) score excluding alcohol. Cox proportional hazards regression models were used while adjusting for BC risk factors. A total of 9,009 postmenopausal and 1,216 premenopausal first primary incident invasive BC were identified (5,862 estrogen or progesterone receptor positive [ER+/PR+] and 1,018 estrogen and progesterone receptor negative [ER-/PR-]). The arMED was inversely associated with the risk of BC overall and in postmenopausal women (high vs. low arMED score; hazard ratio [HR] = 0.94 [95% confidence interval [CI]: 0.88, 1.00] ptrend = 0.048, and HR = 0.93 [95% CI: 0.87, 0.99] ptrend = 0.037, respectively). The association was more pronounced in ER-/PR- tumors (HR = 0.80 [95% CI: 0.65, 0.99] ptrend = 0.043). The arMED score was not associated with BC in premenopausal women. Our findings show that adherence to a MD excluding alcohol was related to a modest reduced risk of BC in postmenopausal women, and this association was stronger in receptor-negative tumors. The results support the potential scope for BC prevention through dietary modification.


Assuntos
Neoplasias da Mama/epidemiologia , Neoplasias da Mama/etiologia , Dieta Mediterrânea , Risco , Europa (Continente)/epidemiologia , Feminino , Humanos , Incidência , Estilo de Vida , Menopausa , Estudos Prospectivos , Receptores de Estrogênio , Receptores de Progesterona , Inquéritos e Questionários
16.
Br J Cancer ; 108(3): 708-14, 2013 Feb 19.
Artigo em Inglês | MEDLINE | ID: mdl-23169298

RESUMO

BACKGROUND: Smoking is not associated with prostate cancer incidence in most studies, but associations between smoking and fatal prostate cancer have been reported. METHODS: During 1992 and 2000, lifestyle information was assessed via questionnaires and personal interview in a cohort of 145,112 European men. Until 2009, 4623 incident cases of prostate cancer were identified, including 1517 cases of low-grade, 396 cases of high grade, 1516 cases of localised, 808 cases of advanced disease, and 432 fatal cases. Multivariable Cox proportional hazards regression models were used to examine the association of smoking status, smoking intensity, and smoking duration with the risk of incident and fatal prostate cancer. RESULTS: Compared with never smokers, current smokers had a reduced risk of prostate cancer (RR=0.90, 95% CI: 0.83-0.97), which was statistically significant for localised and low-grade disease, but not for advanced or high-grade disease. In contrast, heavy smokers (25+ cigarettes per day) and men who had smoked for a long time (40+ years) had a higher risk of prostate cancer death (RR=1.81, 95% CI: 1.11-2.93; RR=1.38, 95% CI: 1.01-1.87, respectively). CONCLUSION: The observation of an increased prostate cancer mortality among heavy smokers confirms the results of previous prospective studies.


Assuntos
Neoplasias da Próstata/etiologia , Fumar/efeitos adversos , Adulto , Europa (Continente)/epidemiologia , Seguimentos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Estado Nutricional , Prognóstico , Estudos Prospectivos , Neoplasias da Próstata/epidemiologia , Neoplasias da Próstata/mortalidade , Sistema de Registros , Medição de Risco , Fatores de Risco , Inquéritos e Questionários , Taxa de Sobrevida
17.
Cancer Med ; 12(11): 12668-12682, 2023 06.
Artigo em Inglês | MEDLINE | ID: mdl-37096432

RESUMO

BACKGROUND: Excess body fatness and hyperinsulinemia are both associated with an increased risk of postmenopausal breast cancer. However, whether women with high body fatness but normal insulin levels or those with normal body fatness and high levels of insulin are at elevated risk of breast cancer is not known. We investigated the associations of metabolically defined body size and shape phenotypes with the risk of postmenopausal breast cancer in a nested case-control study within the European Prospective Investigation into Cancer and Nutrition. METHODS: Concentrations of C-peptide-a marker for insulin secretion-were measured at inclusion prior to cancer diagnosis in serum from 610 incident postmenopausal breast cancer cases and 1130 matched controls. C-peptide concentrations among the control participants were used to define metabolically healthy (MH; in first tertile) and metabolically unhealthy (MU; >1st tertile) status. We created four metabolic health/body size phenotype categories by combining the metabolic health definitions with normal weight (NW; BMI < 25 kg/m2 , or WC < 80 cm, or WHR < 0.8) and overweight or obese (OW/OB; BMI ≥ 25 kg/m2 , or WC ≥ 80 cm, or WHR ≥ 0.8) status for each of the three anthropometric measures separately: (1) MHNW, (2) MHOW/OB, (3) MUNW, and (4) MUOW/OB. Conditional logistic regression was used to compute odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS: Women classified as MUOW/OB were at higher risk of postmenopausal breast cancer compared to MHNW women considering BMI (OR = 1.58, 95% CI = 1.14-2.19) and WC (OR = 1.51, 95% CI = 1.09-2.08) cut points and there was also a suggestive increased risk for the WHR (OR = 1.29, 95% CI = 0.94-1.77) definition. Conversely, women with the MHOW/OB and MUNW were not at statistically significant elevated risk of postmenopausal breast cancer risk compared to MHNW women. CONCLUSION: These findings suggest that being overweight or obese and metabolically unhealthy raises risk of postmenopausal breast cancer while overweight or obese women with normal insulin levels are not at higher risk. Additional research should consider the combined utility of anthropometric measures with metabolic parameters in predicting breast cancer risk.


Assuntos
Neoplasias , Sobrepeso , Feminino , Humanos , Fatores de Risco , Sobrepeso/complicações , Somatotipos , Pós-Menopausa , Peptídeo C , Estudos de Casos e Controles , Estudos Prospectivos , Obesidade/complicações , Fenótipo , Tamanho Corporal , Índice de Massa Corporal
18.
Ann Oncol ; 23(4): 1053-60, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21828376

RESUMO

BACKGROUND: The study aimed to investigate the role of medical history (skin warts, Candida albicans, herpetic lesions, heartburn, regurgitation) and medication use (for heartburn; for regurgitation; aspirin) in the aetiology of upper aerodigestive tract (UADT) cancer. METHODS: A multicentre (10 European countries) case-control study [Alcohol-Related CAncers and GEnetic susceptibility (ARCAGE) project]. RESULTS: There were 1779 cases of UADT cancer and 1993 controls. History of warts or C. albicans infection was associated with a reduced risk [odds ratio (OR) 0.80, 95% confidence interval (CI) 0.68-0.94 and OR 0.73, 95% CI 0.60-0.89, respectively] but there was no association with herpetic lesions, heartburn, regurgitation or medication for related symptoms. Regurgitation was associated with an increased risk for cancer of the oesophagus (OR 1.47, 95% CI 0.98-2.21). Regular aspirin use was not associated with risk of UADT cancer overall but was associated with a reduced risk for cancer of oesophagus (OR 0.51, 95% CI 0.28-0.96), hypopharynx (OR 0.53, 95% CI 0.28-1.02) and larynx (OR 0.74, 95% CI 0.54-1.01). CONCLUSIONS: A history of some infections appears to be a marker for decreased risk of UADT cancer. The role of medical history and medication use varied by UADT subsites with aspirin use associated with a decreased risk of oesophageal cancer and suggestive of a decreased risk of hypopharyngeal and laryngeal cancers.


Assuntos
Carcinoma de Células Escamosas/etiologia , Neoplasias de Cabeça e Pescoço/etiologia , Adulto , Aspirina/efeitos adversos , Aspirina/uso terapêutico , Candidíase/complicações , Estudos de Casos e Controles , Suscetibilidade a Doenças , Europa (Continente) , Azia/complicações , Infecções por Herpesviridae/complicações , Humanos , Refluxo Laringofaríngeo/complicações , Pessoa de Meia-Idade , Razão de Chances , Fatores de Risco , Verrugas/complicações , Adulto Jovem
19.
Ann Oncol ; 23(5): 1320-1324, 2012 May.
Artigo em Inglês | MEDLINE | ID: mdl-21917738

RESUMO

BACKGROUND: In epidemiological studies, Helicobacter pylori infection is usually detected by enzyme-linked immunosorbent assay (ELISA). However, infection can spontaneously clear from the mucosa during the progression of atrophy and could lead to substantial under-detection of infection and underestimation of its effect on gastric cancer (GC) risk. Antibodies detected by western blot are known to persist longer after the loss of the infection. METHODS: In a nested case-control study from the Eurogast-EPIC cohort, including 88 noncardia GC cases and 338 controls, we assessed the association between noncardia GC and H. pylori infection comparing antibodies detected by western blot (HELICOBLOT2.1) to those detected by ELISA (Pyloriset EIA-GIII(®)). RESULTS: By immunoblot, 82 cases (93.2%) were H. pylori positive, 10 of these cases (11.4%) were negative by ELISA and only 6 cases (6.8%) were negative by both ELISA and immunoblot. Multivariable odds ratio (OR) for noncardia GC comparing immunoglobulin G positive versus negative by ELISA was 6.8 [95% confidence interval (CI) 3.0-15.1], and by immunoblot, the OR was 21.4 (95% CI 7.1-64.4). CONCLUSIONS: Using a western blot assay, nearly all noncardia GC were classified as H. pylori positive and the OR was more than threefold higher than the OR assessed by ELISA, supporting the hypothesis that H. pylori infection is a necessary condition for noncardia GC.


Assuntos
Adenocarcinoma/etiologia , Infecções por Helicobacter/diagnóstico , Helicobacter pylori/imunologia , Immunoblotting/métodos , Neoplasias Gástricas/etiologia , Adenocarcinoma/diagnóstico , Adenocarcinoma/epidemiologia , Adulto , Idoso , Anticorpos Antibacterianos/análise , Anticorpos Antibacterianos/sangue , Cárdia/patologia , Estudos de Casos e Controles , Estudos de Coortes , Ensaio de Imunoadsorção Enzimática/métodos , Europa (Continente)/epidemiologia , Infecções por Helicobacter/complicações , Infecções por Helicobacter/epidemiologia , Infecções por Helicobacter/imunologia , Helicobacter pylori/isolamento & purificação , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco , Estudos Soroepidemiológicos , Neoplasias Gástricas/diagnóstico , Neoplasias Gástricas/epidemiologia
20.
Artigo em Inglês | MEDLINE | ID: mdl-35627855

RESUMO

BACKGROUND: The aim of the present study was to evaluate the impact of robotic therapy in patients with cervical spinal cord injury (SCI), measured on the basis of the patients' self-perception of limited upper limb function and level of independence in activities of daily living. METHODS: Twenty-six patients with cervical SCI completed the treatment after being randomly assigned to the intervention or control group. The training consisted of 40 experimental sessions 1 h in duration, ideally occurring 5 days/week for 8 weeks. In addition to the conventional daily therapy (30 min), the control group received another 30 min of conventional therapy, whereas the intervention group received 30 min of robotic therapy. Patients were evaluated by means of the Capabilities of Upper Extremity Questionnaire (CUE) and Spinal Cord Independence Measure (SCIM) clinical scales. RESULTS: The improvement in the feeding item of SCIM was significantly higher in the intervention group than in the control group after the treatment (2.00 (0.91) vs. 1.18 (0.89), p = 0.03). The correlation between the CUE and SCIM scales was higher at the ending than at baseline for both groups. CONCLUSIONS: Although both groups improved, the clinical relevance related to the changes observed for both assessments was slightly higher in the intervention group than in the control group.


Assuntos
Medula Cervical , Lesões do Pescoço , Procedimentos Cirúrgicos Robóticos , Traumatismos da Medula Espinal , Atividades Cotidianas , Humanos , Projetos Piloto , Autoimagem , Traumatismos da Medula Espinal/terapia , Extremidade Superior
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