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1.
Diabet Med ; 32(7): 925-34, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25659409

RESUMO

AIM: People with diabetes are at an increased risk of developing depression and other psychological disorders. However, little is known about the prevalence, correlates or care pathways in countries other than the UK and the USA. A new study, the International Prevalence and Treatment of Diabetes and Depression Study (INTERPRET-DD) aims to address this dearth of knowledge and identify optimal pathways to care across the globe. METHOD: INTERPRET-DD is a 2-year longitudinal study, taking place in 16 countries' diabetes outpatients' facilities, investigating the recognition and management of depressive disorders in people with Type 2 diabetes. Clinical interviews are used to diagnose depression, with clinical and other data obtained from medical records and through patient interviews. Pathways to care and the impact of treatment for previously unrecognized (undocumented) depression on clinical outcomes and emotional well-being are being investigated. RESULTS: Initial evidence indicates that a range of pathways to care exist, with few of them based on available recommendations for treatment. Pilot data indicates that the instruments we are using to measure both the symptoms and clinical diagnosis of depression are acceptable in our study population and easy to use. CONCLUSIONS: Our study will increase the understanding of the impact of comorbid diabetes and depression and identify the most appropriate (country-specific) pathways via which patients receive their care. It addresses an important public health problem and leads to recommendations for best practice relevant to the different participating centres with regard to the identification and treatment of people with comorbid diabetes and depression.


Assuntos
Depressão/epidemiologia , Transtorno Depressivo Maior/epidemiologia , Transtorno Depressivo/epidemiologia , Diabetes Mellitus Tipo 2/psicologia , Saúde Global , Estresse Psicológico/epidemiologia , Adulto , Instituições de Assistência Ambulatorial , Comorbidade , Depressão/diagnóstico , Depressão/terapia , Transtorno Depressivo/diagnóstico , Transtorno Depressivo/terapia , Transtorno Depressivo Maior/diagnóstico , Transtorno Depressivo Maior/terapia , Complicações do Diabetes/epidemiologia , Complicações do Diabetes/prevenção & controle , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/terapia , Feminino , Humanos , Incidência , Estudos Longitudinais , Masculino , Projetos Piloto , Guias de Prática Clínica como Assunto , Prevalência , Escalas de Graduação Psiquiátrica , Encaminhamento e Consulta , Estresse Psicológico/diagnóstico , Estresse Psicológico/terapia
2.
Br J Cancer ; 109(3): 610-4, 2013 Aug 06.
Artigo em Inglês | MEDLINE | ID: mdl-23921280

RESUMO

BACKGROUND: Gamma-glutamyltransferase (GGT) - a membrane-bound enzyme crucially involved in the cell's detoxification pathway and apoptotic balance - is involved in tumour development, progression and chemotherapy resistance. Elevated GGT serum levels are associated with increased cancer risk in women and worse prognosis in gynaecologic cancers. The present study investigated the prognostic role of GGT in ovarian cancer patients. METHODS: In this multicenter study, pre-therapeutic GGT levels were ascertained in 634 consecutive patients with epithelial ovarian cancer (EOC, n=567) and borderline tumour of the ovary (BTO, n=67). Gamma-glutamyltransferase serum levels were associated with clinicopathological parameters and uni- and multivariate survival analyses were performed. Immunohistochemistry of GGT was performed in ovarian cancer tissue and correlated with GGT serum levels. RESULTS: Pre-therapeutic GGT serum levels were higher in patients with EOC (28.56 (38.24) U l(-1)) than in patients with BTO (20.01 (12.78) U l(-1), P=0.01). High GGT serum levels were associated with advanced FIGO stage (P<0.001) and with worse overall survival in univariate (P<0.001) and multivariable analysis (P=0.02, HR 1.2 (1.1-1.5)). We further investigated the association between systemic GGT serum levels and local GGT expression in EOC tumour tissue and observed an association between these two parameters (P=0.03). CONCLUSION: High pre-therapeutic GGT serum levels are associated with advanced tumour stage and serve as an independent prognostic marker for worse overall survival in patients with EOC. Gamma-glutamyltransferase expression in ovarian cancer tissue is reflected in GGT serum levels.


Assuntos
Neoplasias Epiteliais e Glandulares/enzimologia , Neoplasias Ovarianas/enzimologia , gama-Glutamiltransferase/sangue , Carcinoma Epitelial do Ovário , Feminino , Humanos , Imuno-Histoquímica , Estimativa de Kaplan-Meier , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Neoplasias Epiteliais e Glandulares/patologia , Neoplasias Ovarianas/patologia , Prognóstico , Índice de Gravidade de Doença
3.
Br J Cancer ; 107(1): 84-90, 2012 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-22644303

RESUMO

BACKGROUND: Phosphohistone-H3 (pHH3) is a promising reliable mitotic count biomarker. Our purpose was to study the relationship between the novel proliferation marker pHH3 and the established anti-apoptotic marker survivin and consider their prognostic relevance in endometrial cancer. METHODS: A total of 106 patients with endometrial cancer (type I/endometrioid, n=81; type II carcinomas, n=18) and simple hyperplasia without atypia (n=7) were investigated. pHH3 and survivin expression were assessed using immunohistochemistry from paraffin-embedded tissue blocks. RESULTS: A strong positive correlation was observed between pHH3 and survivin expression (P<0.0001). Patients with high-grade tumours and patients with type II carcinomas expressed significantly more pHH3 and survivin than low grade and endometrioid tumours (P<0.0001, P<0.0001, P<0.0001, and P<0.0001, respectively). In univariate survival analysis, overexpression of pHH3 and survivin were associated with increased recurrence and mortality (P<0.0001, P<0.0001, P<0.0001, and P<0.0001, respectively), in the multivariable Cox regression analyses both pHH3 and survivin could be identified as independent parameters for overall survival (P=0.004, and P=0.023, respectively). CONCLUSION: In endometrial cancer, pHH3 and survivin were strongly positive correlated and were both associated with type II and high-grade tumours. Increasing expression levels of pHH3 and survivin were associated with adverse prognostic factors.


Assuntos
Biomarcadores Tumorais/análise , Neoplasias do Endométrio/metabolismo , Histonas/metabolismo , Proteínas Inibidoras de Apoptose/metabolismo , Idoso , Neoplasias do Endométrio/patologia , Feminino , Humanos , Pessoa de Meia-Idade , Prognóstico , Risco , Survivina
4.
Br J Cancer ; 107(6): 918-24, 2012 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-22871885

RESUMO

BACKGROUND: Nomograms are predictive tools that are widely used for estimating cancer prognosis. The aim of this study was to develop a nomogram for the prediction of overall survival (OS) in patients diagnosed with cervical cancer. METHODS: Cervical cancer databases of two large institutions were analysed. Overall survival was defined as the clinical endpoint and OS probabilities were estimated using the Kaplan-Meier method. Based on the results of survival analyses and previous studies, relevant covariates were identified, a nomogram was constructed and validated using bootstrap cross-validation. Discrimination of the nomogram was quantified with the concordance probability. RESULTS: In total, 528 consecutive patients with invasive cervical cancer, who had all nomogram variables available, were identified. Mean 5-year OS rates for patients with International Federation of Gynecologists and Obstetricians (FIGO) stage IA, IB, II, III, and IV were 99.0%, 88.6%, 65.8%, 58.7%, and 41.5%, respectively. Seventy-six cancer-related deaths were observed during the follow-up period. FIGO stage, tumour size, age, histologic subtype, lymph node ratio, and parametrial involvement were selected as nomogram covariates. The prognostic performance of the model exceeded that of FIGO stage alone and the model's estimated optimism-corrected concordance probability was 0.723, indicating accurate prediction of OS. We present the prediction model as nomogram and provide a web-based risk calculator (http://www.ccc.ac.at/gcu). CONCLUSION: Based on six easily available parameters, a novel statistical model to predict OS of patients diagnosed with cervical cancer was constructed and validated. The model was implemented in a nomogram and provides accurate prediction of individual patients' prognosis useful for patient counselling and deciding on follow-up strategies.


Assuntos
Nomogramas , Neoplasias do Colo do Útero/mortalidade , Neoplasias do Colo do Útero/patologia , Adenocarcinoma/mortalidade , Adenocarcinoma/patologia , Adulto , Idoso , Área Sob a Curva , Áustria/epidemiologia , Carcinoma de Células Escamosas/mortalidade , Carcinoma de Células Escamosas/patologia , Estudos de Coortes , Feminino , Humanos , Estimativa de Kaplan-Meier , Metástase Linfática , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Valor Preditivo dos Testes , Prognóstico , Curva ROC , Neoplasias do Colo do Útero/cirurgia , População Branca/estatística & dados numéricos
5.
Am J Transplant ; 10(3): 628-36, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-20055806

RESUMO

Primary graft dysfunction (PGD) causes significant morbidity following lung transplantation (LTX). Mortality is high in PGD and therapeutic strategies are limited. To investigate whether endothelin-1 (ET-1) that mediates increased vascular permeability and edema formation in lung grafts can predict PGD, ET-1 mRNA expression was examined in lung tissue biopsies of 105 donors and recipients obtained shortly before LTX. Serum ET-1 concentration was assessed by ELISA. PGD grade was diagnosed and scored by oxygenation and radiological characteristics according to ISHLT guidelines. PGD grade 3 developed in 11% of patients. ET-1 mRNA expression was significantly increased in both donor (p < 0.0001) and recipient (p = 0.01) developing PGD as compared to no PGD group. Pretransplant ET-1 serum concentrations were elevated in recipients with PGD as compared to no PGD group (p < 0.0001), although serum ET-1 was not different between donors whose grafts developed PGD grades 0-3. In regression analysis, concomitant elevated donor tissue ET-1 and recipient serum ET-1 predicted PGD grade 3. This study indicates that pretransplant ET-1 mRNA overexpression in donors associated with elevated pretransplant serum ET-1 in recipients contribute to PGD development and that their assessment might be beneficial to predict PGD and to identify recipients who could benefit from a targeted ET-1 blockade.


Assuntos
Endotelina-1/metabolismo , Transplante de Pulmão/efeitos adversos , Disfunção Primária do Enxerto/etiologia , Adulto , Ensaio de Imunoadsorção Enzimática/métodos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , RNA Mensageiro/metabolismo , Análise de Regressão , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Doadores de Tecidos , Resultado do Tratamento
6.
Eur J Clin Invest ; 40(3): 233-41, 2010 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-20100234

RESUMO

BACKGROUND: Current data appear in favour of thrombectomy for ST-elevation myocardial infarction (STEMI). However, information on long-term outcome after thrombectomy is limited. We performed a retrospective long-term study to assess the risk of cardiac re-hospitalizations and survival after discharge from the index hospitalization for STEMI. METHODS: Patients originally randomized to percutaneous coronary intervention (PCI) with thrombectomy vs. standard PCI were included in a retrospective long-term observational study. The primary study endpoint was the combined risk for all-cause death or cardiac re-hospitalization after index discharge under optimal medical therapy. The cumulative number of cardiac hospitalization days and ventricular remodelling assessed by echocardiography and plasma biomarkers were secondary endpoints. RESULTS: Of 94 STEMI patients who had been randomized between 11/2000 and 03/2003, 89 patients consented to long-term follow-up. A total of 43 patients had been allocated to thrombectomy and 46 to standard primary PCI. The minimum follow-up time was 1115 days. There was a significantly lower risk for death or cardiac re-hospitalization for patients of the thrombectomy group (hazard ratio = 0.69, 95% CI: 0.49-0.98, P = 0.036). The incidence of recurrent myocardial infarction was not different (P = 0.343). No differences in cardiac remodelling were detected by echocardiography, with the exception that heart-type fatty acid binding protein at 53.2 +/- 17 months was lower in the thrombectomy group (P = 0.045). CONCLUSION: Thrombectomy in STEMI may decrease the long-term risk for death or cardiac re-hospitalization.


Assuntos
Infarto do Miocárdio/cirurgia , Trombectomia , Doença Aguda , Idoso , Biomarcadores/sangue , Causas de Morte , Feminino , Seguimentos , Humanos , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/sangue , Infarto do Miocárdio/diagnóstico por imagem , Infarto do Miocárdio/mortalidade , Readmissão do Paciente , Risco , Resultado do Tratamento , Ultrassonografia
7.
Eur J Clin Invest ; 39(7): 568-75, 2009 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-19453646

RESUMO

BACKGROUND: The prognosis of chronic lymphocytic leukaemia (CLL) patients is largely determined by the karyotype of the malignant clone. We have investigated the gene expression profile associated with trisomy 12 (+12). DESIGN: Initially, unselected peripheral blood mononuclear cells of four patients with +12 were compared with 16 CLL controls using microarray analysis. RESULTS: were validated by quantitative real-time PCR with RNA from 61 patients (29 with +12, 32 CLL controls). Results Seven genes showing the strongest correlation with +12 in microarray analysis were selected for real-time PCR: HIP1R, MYF6, SLC2A6, CD9 (overexpressed); CD200, P2RY14, RASGRP3 (underexpressed). Four genes were significantly associated with +12: HIP1R (P<0.0001), MYF6 (P=0.007), P2RY14 (P=0.014), CD200 (P=0.028). Receiver Operating Characteristic curve analysis revealed that HIP1R expression was a highly sensitive and specific marker for +12 in CLL patients. MYF6 was exclusively expressed in normal or malignant B cells in peripheral blood but was poorly predictive for +12. As expected, a number of overexpressed genes are located on chromosome 12 (HIP1R, MYF6). Interestingly, both significantly underexpressed genes (P2RY14, CD200) reside on the long arm of chromosome 3 pointing to trans-repression in this region. CONCLUSIONS: Analysis of the molecular signature of trisomy 12 in CLL resulted in: (i) identification of a surrogate marker for PCR (HIP1R); (ii) observation of a gene dosage effect; and (iii) detection of specific underexpression of genes located on chromosome 3. These results should help to improve diagnosis and treatment decisions for patients with CLL and trisomy 12.


Assuntos
Cromossomos Humanos Par 12 , Leucemia Linfocítica Crônica de Células B/patologia , Trissomia/patologia , Cromossomos Humanos Par 12/genética , Feminino , Perfilação da Expressão Gênica , Regulação Leucêmica da Expressão Gênica , Humanos , Cariotipagem , Leucemia Linfocítica Crônica de Células B/genética , Masculino , Pessoa de Meia-Idade , Análise de Sequência com Séries de Oligonucleotídeos , Prognóstico , Trissomia/genética
8.
United European Gastroenterol J ; 7(1): 114-124, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30788123

RESUMO

Background: Although optimal bowel preparation is essential for high-quality screening colonoscopy, documentation of preparation quality, patient satisfaction and adherence is scarce. Aim: The aim of this article is to compare low-volume (LV, 300 ml sodium picosulfate), intermediate-volume (IV, 2 l polyethylene glycol, PEG + ascorbic acid and sodium ascorbate), and high-volume (HV, 4 l PEG) purgatives. Results: A total of 5000 individuals (50.5% women) were enrolled between March 2015 and July 2017 (LV:IV:HV = 3.61:1.54:1). Overall sex- and age-adjusted adenoma detection rate was 25.4% (LV 23.8%, IV 25.4%, HV 29.8%), median age was 59.6 years, and cleansing was successful in 96.8%. Success rates of bowel cleansing were highest with HV (97.6%), followed by LV (97.2%) and IV (95.3%) with OR 2.04 (CI 95% 1.20-3.45, p = 0.008) and OR 1.79 (CI 95% 1.27-2.50, p = 0.001), respectively, compared to IV. A total of 93.5% of the LV group would use the same purgative in the future, 73.2% of IV and 69.4% of HV. A total of 84.4% would prefer overnight preparation, 12.1% same-day preparation. Conclusion: All purgatives investigated showed good bowel cleansing quality results, patient satisfaction and compliance. Improvement in patient information might lead to even higher participation rates in screening colonoscopy since one in five patients stated that bowel preparation worried him or her most prior to colonoscopy.


Assuntos
Colonoscopia , Satisfação do Paciente , Cuidados Pré-Operatórios , Garantia da Qualidade dos Cuidados de Saúde , Adulto , Idoso , Colonoscopia/métodos , Colonoscopia/normas , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Cooperação do Paciente , Cuidados Pré-Operatórios/métodos , Cuidados Pré-Operatórios/normas , Inquéritos e Questionários
9.
Life Sci ; 78(7): 730-7, 2006 Jan 11.
Artigo em Inglês | MEDLINE | ID: mdl-16122763

RESUMO

A hexane extract of leaves of Annona cherimolia produced anxiolytic-like actions when administered to mice and tested in two animal models of anxiety: the mouse avoidance exploratory behavior and the burying behavior tests. In order to discard unspecific drug-actions on general activity, all treatments studied in the anxiety paradigms were also analyzed in the open field test. Results showed that A. cherimolia induced anxiolytic-like actions at the doses of 6.25, 12.5, 25.0 and 50.0 mg/kg. Picrotoxin (0.25 mg/kg), a GABA-gated chloride ion channel blocker, antagonized the anxiolytic-like actions of A. cherimolia, while a sub-effective dose of muscimol (0.5 mg/kg), a selective GABA(A) receptor agonist, facilitated the effects of a sub-optimal dose of A. cherimolia (3.12 mg/kg). Thus, the involvement of the GABA(A) receptor complex in the anxiolytic-like actions of A. cherimolia hexane extract is suggested. In addition the extract was also able to enhance the duration of sodium pentobarbital induced sleeping time. Taken together, results indicate that the hexane extract of A. cherimolia has depressant activity on the Central Nervous System and could interact with the GABA(A) receptor complex. On the other hand, the chromatographic separation of this extract led to the isolation of palmitone, and beta-sitosterol as major constituents. In addition a GC-MS study of some fractions revealed the presence of several compounds such beta-cariophyllene, beta-selinene, alpha-cubebene, and linalool that have been reported to show effects on behavior that could explain some of the extract effects.


Assuntos
Annona/química , Ansiolíticos/farmacologia , Ansiedade/fisiopatologia , Comportamento Animal/efeitos dos fármacos , Receptores de GABA-A/fisiologia , Animais , Transtornos de Ansiedade , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , Comportamento Exploratório/efeitos dos fármacos , Agonistas GABAérgicos/farmacologia , Antagonistas GABAérgicos/farmacologia , Hexanos/química , Masculino , Camundongos , Muscimol/farmacologia , Picrotoxina/farmacologia , Extratos Vegetais/farmacologia , Folhas de Planta/química
10.
J Thromb Haemost ; 14(12): 2402-2409, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27696701

RESUMO

Essentials Long-term recurrence risk of venous thromboembolism (VTE) is uncertain. We performed a prospective cohort study of 839 patients with first unprovoked VTE. VTE recurrence risk is high, particularly in men with proximal thrombosis or pulmonary embolism. Sex and VTE site determine the recurrence risk and should be considered for patient counseling. SUMMARY: Background The long-term recurrence risk (ltRR) of venous thromboembolism (VTE) is uncertain. Objective To assess the ltRR of patients with first unprovoked VTE. Patients/methods Patients were classified into three categories: distal deep vein thrombosis (DVT), proximal DVT or pulmonary embolism (PE), that is, PE associated with DVT or isolated PE. Patients with major thrombophilia or antithrombotic therapy were excluded. The endpoint was recurrent symptomatic VTE. Results A total of 839 patients were followed for a median of 7.7 years. VTE recurred in 263 patients (31%). After 10 and 20 years, the cumulative ltRR was 32% (95% confidence interval [CI], 29-36) and 44% (95% CI, 38-49) with 3.9 (95% CI, 3.3-4.6) and 3.3 (95% CI, 2.7-4.0) events per 100 patient-years, respectively. The adjusted hazard ratio was 2.1 (95% CI, 1.4-3.2) and 2.1 (95% CI, 1.4-3.2) for patients with proximal DVT or PE compared with patients with distal DVT and was 2.1 (95% CI, 1.6-2.9) for men compared with women. At 10 years, 4.7 (95% CI, 3.8-5.8) events per 100 patient-years occurred in men with proximal DVT or PE, 2.4 (95% CI, 1.2-4.4) in men with distal DVT, 1.9 (95% CI, 1.2-2.8) in women with proximal DVT or PE and 0.9 (95% CI, 0.2-1.9) in women with distal DVT. Conclusion The ltRR of patients with first unprovoked VTE is high and dependent upon sex and VTE site.


Assuntos
Anticoagulantes/uso terapêutico , Embolia Pulmonar/tratamento farmacológico , Tromboembolia Venosa/tratamento farmacológico , Trombose Venosa/tratamento farmacológico , Adulto , Idoso , Áustria , Feminino , Fibrinolíticos/uso terapêutico , Humanos , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Estudos Prospectivos , Embolia Pulmonar/sangue , Embolia Pulmonar/complicações , Recidiva , Fatores Sexuais , Trombofilia/complicações , Fatores de Tempo , Tromboembolia Venosa/sangue , Tromboembolia Venosa/complicações , Trombose Venosa/sangue , Trombose Venosa/complicações
11.
J Clin Endocrinol Metab ; 90(2): 775-8, 2005 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-15572419

RESUMO

Based on newborn screening data, the carrier frequency of congenital adrenal hyperplasia (CAH) in the general population has been estimated to be 1:55. The higher CAH frequency (particularly of milder forms of the disease) reported for certain populations including Yugoslavs (1.6%) relates to population genetic and hormonal data. However, so far, true carrier frequency for CAH due to 21-OH deficiency has not been determined by comprehensive mutation analysis of the 21-OH gene (CYP21A2) in an unselected European population. This study used CYP21A2 genotyping (sequence/Southern blot analysis) to determine CAH carrier frequency in a middle European (Austrian) population. The study included 100 migrants from the former Yugoslavia and 100 individuals of non-Yugoslavian origin. None of these individuals showed clinical hyperandrogenism or had a family history of CAH. Genotyping 400 unrelated alleles from 200 clinically unaffected individuals, this study revealed a carrier frequency of 9.5%, including so-called "classic" (5.5%) and "nonclassic" (4%) CYP21A2-gene aberrations. The observed heterozygosity for CAH in Yugoslavs was not different (P = 0.8095) from that in non-Yugoslavs. In conclusion, the observed CAH carrier frequency of 9.5% suggests a higher prevalence of CAH heterozygosity in a middle European population than hitherto estimated independently of the individuals' Yugoslav or non-Yugoslav origin.


Assuntos
Hiperplasia Suprarrenal Congênita/genética , Triagem de Portadores Genéticos , Mutação , Esteroide 21-Hidroxilase/genética , Hiperplasia Suprarrenal Congênita/epidemiologia , Processamento Alternativo , Áustria/epidemiologia , Éxons/genética , Feminino , Duplicação Gênica , Frequência do Gene , Humanos , Íntrons/genética , Masculino , Deleção de Sequência , Iugoslávia/etnologia
12.
J Clin Endocrinol Metab ; 90(11): 6232-6, 2005 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-16118333

RESUMO

CONTEXT: Single-nucleotide polymorphisms (SNPs) of the RET protooncogene (RET) could modify disease susceptibility and clinical phenotype in patients with sporadic or familial medullary thyroid carcinoma (FMTC). OBJECTIVE/DESIGN OF THE STUDY: Because frequencies of RET SNPs have not yet been evaluated in patients with elevated serum concentrations of calcitonin (hCt), a biochemical marker for medullary thyroid carcinoma (MTC), we studied RET SNPs in patients with FMTC (n = 22), patients with sporadic MTC (n = 45), and 71 subjects presenting with moderately elevated hCt concentrations (basal, >10 pg/ml; pentagastrin stimulated, > 50 < 100 pg/ml) in comparison with an age- and gender-matched control group (n = 79) with basal hCt concentrations in the normal range (<5 pg/ml). METHODS: After DNA extraction from citrated whole blood, RET exons 10, 11, 13, 14, 15, and 16 and exon/intron boundaries were analyzed by PCR-based cycle sequencing for RET germ line mutations, exonic (G691S, L769L, S836S, S904S) and intronic (IVS13+158; NCBI rs2472737 = IVS14-24) SNPs. RESULTS: In FMTC patients, the F791Y mutation was found to be associated (P = 0.001) with the L769L SNP. The exonic SNPs (G691S, L769L, S836S, and S904S) were not different among the four groups. The intron 14 SNP (IVS14-24), however, was more frequent in individuals with elevated hCt serum concentrations (P = 0.016) and patients with sporadic MTC (P < 0.001) when compared with the control group. CONCLUSIONS: These data suggest that the exon 13 (L769L) and the intron 14 (IVS14-24) SNPs could act as genetic modifiers in the development of some forms of hereditary and sporadic MTC, respectively.


Assuntos
Carcinoma Medular/genética , Éxons , Íntrons , Polimorfismo de Nucleotídeo Único , Proteínas Proto-Oncogênicas c-ret/genética , Proto-Oncogenes , Neoplasias da Glândula Tireoide/genética , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
13.
Arch Gen Psychiatry ; 33(12): 1471-5, 1976 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-999450

RESUMO

Several pharmacological stimulation tests of the pituitary-hypothalamic system have been used to investigate psychiatric disorders. This study introduces amphetamine sulfate as a stimulus for human growth hormone (HGH) release in various psychiatric patients. Peak HGH release after a single intravenous administration of amphetamine sulfate, 0.1 mg/kg, was significantly lower in nine "endogenous" depressives (P = .01) and significantly higher in seven "reactive" depressives (P less than .05) as compared to normal subjects, whereas peak HGH release in eight schizophrenics and six chronic alcoholics did not differ significantly from that in normal subjects.


Assuntos
Transtornos de Adaptação/sangue , Alcoolismo/sangue , Anfetamina/farmacologia , Depressão/sangue , Hormônio do Crescimento/sangue , Esquizofrenia/sangue , Adulto , Idoso , Anfetamina/administração & dosagem , Pressão Sanguínea/efeitos dos fármacos , Doença Crônica , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva
14.
Leukemia ; 11(5): 639-43, 1997 May.
Artigo em Inglês | MEDLINE | ID: mdl-9180285

RESUMO

We examined the presence of WT1-specific mRNA in bone marrow samples of 125 patients with de novo acute myeloid leukemia at diagnosis by two-step RT-PCR. The sensitivity of the assay was 1:100 (first step) and 1:10000 (second step), respectively. WT1-specific mRNA was detected in 73% of patients. No correlation was found between WT1 gene expression and age, FAB type, LDH and karyotype at diagnosis. All patients were treated with standard induction chemotherapy. There was no difference in the CR rate between WT1-positive and -negative patients. Using Kaplan and Meier plot analysis we found no difference in disease-free survival (DFS) and overall survival (OS) between patients displaying the WT1 transcript and WT1-negative patients. Furthermore, no significant interactions between WT1 PCR results and age, FAB type, LDH and karyotype on DFS and OS were demonstrable using Cox regression analysis. Eight patients who were WT1 PCR positive at diagnosis and achieved complete hematological remission following chemotherapy were monitored during the course of the disease. Based on our limited data demonstrating a heterogeneity of WT1 PCR results in CR we cannot draw any conclusions regarding the usefulness of WT1 PCR analysis for the early detection of relapse. We conclude that WT1 gene expression at diagnosis is not associated with specific characteristics of AML blast cells and is not a prognostic factor for CR, remission duration and overall survival in acute myeloid leukemia.


Assuntos
Proteínas de Ligação a DNA/biossíntese , Genes do Tumor de Wilms , Leucemia Mieloide/tratamento farmacológico , Leucemia Mieloide/genética , Fatores de Transcrição/biossíntese , Transcrição Gênica , Doença Aguda , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Medula Óssea/patologia , Intervalo Livre de Doença , Feminino , Humanos , Cariotipagem , Leucemia Mieloide/mortalidade , Leucemia Mieloide/patologia , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase , Valor Preditivo dos Testes , Probabilidade , Prognóstico , RNA Mensageiro/biossíntese , Sensibilidade e Especificidade , Taxa de Sobrevida , Fatores de Tempo , Proteínas WT1
15.
Leukemia ; 12(12): 1886-94, 1998 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-9844919

RESUMO

The WT1 gene is expressed in 73-100% of patients with acute myelogenous leukemia (AML) and is thought to play a role in maintaining the viability of leukemic cells. WT1 has been proposed as a marker for minimal residual disease in leukemia. We obtained serial blood or bone marrow samples from patients with de novo AML at diagnosis, during therapy, and up to 95 months after diagnosis and analyzed for WT1 gene expression by RT-PCR to determine whether gene expression was predictive of relapse. Forty-four patients had WT1-positive AML and achieved a complete remission (CR) following chemotherapy and 24 patients underwent unrelated donor (n = 4), sibling donor (n = 13) or autologous (n = 7) marrow transplantation. After achieving CR 62% of the patients became WT1-negative, while 38% remained WT1-positive. There was no difference in the disease-free survival (DFS) and survival from remission between WT1-positive and -negative patients (P > 0.1). Following BMT, 32% of the patients analyzed in CR within the first 100 days after transplantation were WT1 PCR positive. Detection of WT1 transcripts within 100 days following BMT did not affect DFS and overall survival (OS) after transplantation (P > 0.1). Ten of 11 patients who are in continuous CR following chemotherapy or BMT for more than 3 years were transiently WT1-positive during the observation period. Four of these patients displayed the WT1 transcript at the last examination. Thirteen of 39 patients were WT1 PCR negative within 4 months before clinical onset of relapse and eight patients were WT1 PCR negative at time of relapse. These data indicate that: (1) achievement of WT1 negativity is not associated with longer DFS, survival from remission, or OS after transplantation; (2) not all patients who relapse become WT1 positive again; (3) long-term remitters frequently display the WT1 transcript. Thus, we conclude that the monitoring of WT1 gene expression by qualitative RT-PCR during treatment and CR is of very limited value.


Assuntos
Proteínas de Ligação a DNA/análise , Genes do Tumor de Wilms , Leucemia Mieloide/genética , Fatores de Transcrição/análise , Doença Aguda , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Transplante de Medula Óssea , Feminino , Proteínas de Fusão bcr-abl/análise , Expressão Gênica , Humanos , Leucemia Mieloide/metabolismo , Leucemia Mieloide/terapia , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase , Prognóstico , Recidiva , Indução de Remissão , Reprodutibilidade dos Testes , Proteínas WT1
16.
Eur J Radiol ; 55(2): 283-8, 2005 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-16036161

RESUMO

OBJECTIVE: To evaluate high field magnetic resonance (MR) imaging for imaging of osteochondral defects. MATERIALS AND METHODS: Nine osteochondral defects were simulated in three cadaveric talus specimens using a diamond drill. All specimens were examined on a 1.0 T MR unit and a 3.0 T MR unit. A T2-weighted turbo spin-echo (TSE) sequence with a 2 mm slice thickness and a 256 x 256 matrix size was used on both scanners. The visibility of the osteochondral separation and the presence of susceptibility artifacts at the drilling bores were scored on all images. RESULTS: Compared to the 1.0 T MR unit, the protocol on the 3.0 T MR unit allowed a better delineation of the disruption of the articular cartilage and a better demarcation of the subchondral defect. Differences regarding the visualization of the subchondral defect were found to be statistically significant (P<0.05). Differences with regard to susceptibility artifacts at the drilling bores were not statistically significant (P>0.05). The average SNR was higher using 3.0 T MRI (SNR=12), compared to 1.0 T MRI (SNR=7). CONCLUSION: High field MRI enables the acquisition of images with sufficient resolution and higher SNR and has therefore the potential to improve the staging of osteochondral defects.


Assuntos
Articulação do Tornozelo , Imageamento por Ressonância Magnética/métodos , Osteocondrite/patologia , Artefatos , Cadáver , Humanos , Processamento de Imagem Assistida por Computador
17.
Cancer Treat Rev ; 41(10): 960-70, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26604093

RESUMO

BACKGROUND: Plasma fibrinogen may be involved in several stages of cancer progression. Clinical studies have demonstrated that pretreatment plasma fibrinogen is associated with poor survival in various cancers. The aim of this meta-analysis was to examine the prognostic effect of circulating fibrinogen in solid tumors. MATERIALS AND METHODS: We searched Medline, EMBASE, Cochrane Database of Systematic Reviews, and meeting proceedings to identify studies assessing the effect of pretreatment plasma fibrinogen on survival of cancer patients. Pooled multivariable-adjusted hazard ratios (HRs) for overall survival (OS), disease-free survival (DFS), and cancer-specific survival (CSS) were estimated using random-effects models. RESULTS: Data from 52 observational studies and 15,371 patients were summarized. An elevated baseline plasma fibrinogen was significantly associated with worse OS (pooled HR = 1.69; 95% CI = 1.48­1.92). The highest negative effect of elevated plasma fibrinogen on OS was demonstrated in renal cell carcinoma (pooled HR = 2.22), followed by head and neck cancer (pooled HR = 2.02), and colorectal cancer (pooled HR = 1.89). The adverse prognostic impact of high plasma fibrinogen remained in both non-metastatic and metastatic disease and patients of different ethnicity. Patients with high baseline fibrinogen had a significantly shorter DFS (pooled HR = 1.52) and CSS (pooled HR = 2.50). CONCLUSIONS: An elevated pretreatment plasma fibrinogen significantly correlates with decreased survival in patients with solid tumors. Future clinical trials are warranted to determine whether plasma fibrinogen could be incorporated in cancer staging systems and whether fibrinogen-lowering therapies have a favorable effect on disease recurrence and mortality.


Assuntos
Fibrinogênio/metabolismo , Neoplasias/sangue , Progressão da Doença , Intervalo Livre de Doença , Humanos , Neoplasias/mortalidade , Prognóstico , Modelos de Riscos Proporcionais
18.
J Clin Endocrinol Metab ; 86(7): 2958-64, 2001 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-11443151

RESUMO

Despite the fact that congenital adrenal hyperplasia (CAH) is one of the most common inborn endocrine disorders, some patients are not identified, or may even die, in an acute salt-losing crisis. In a retrospective study covering the last 30 yr, we examined the time elapsing before diagnosis of CAH patients, in 5 Middle European countries, and the mortality rate in diagnosed patients and their siblings during childhood; we also attempted to estimate how many patients are not diagnosed clinically each year. Basic and follow-up clinical data and the family histories of 484 patients with classical forms of CAH diagnosed between 1969 and 1998 were collected and recorded in 5 Middle European countries. The sex-ratio, time elapsing before diagnosis, and mortality among siblings and patients were calculated, and the number of undiagnosed patients was estimated. We found significantly fewer genetic males (43.0%) than females (57.0%) among 484 classic CAH patients, and the percentage of diagnosed boys did not increase with time; 64.7% of them suffered from the salt-wasting (SW) form, and 35.3% from the simple virilizing (SV) form, of the disease. The diagnosis of CAH was established significantly later in males than in females in both forms [SW: 26 vs. 13 days (median), P < 0.0001; SV: 5.0 vs. 2.8 yr, P = 0.03]. Infant mortality in the general population was significantly lower than in either siblings (1.8% vs. 7.0%; P < 0.0001) or in SW (2.29% vs. 11.3%; P < 0.0001). According to our calculations, by our current praxis of clinical ascertainment, 2-2.5 SW and up to 5 SV stay undiagnosed, out of 40 expected CAH patients per year in the countries investigated. Both clinical detection and treatment of CAH patients, at least in males, were insufficient in the five Middle European countries examined during the last 30 yr. Neonatal mass screening and/or greater awareness of the medical community are discussed as ways of improving the efficacy of CAH management. Our experience may be applicable to other countries with similar health care systems.


Assuntos
Hiperplasia Suprarrenal Congênita/diagnóstico , Hiperplasia Suprarrenal Congênita/terapia , Hiperplasia Suprarrenal Congênita/epidemiologia , Hiperplasia Suprarrenal Congênita/genética , Áustria/epidemiologia , República Tcheca/epidemiologia , Feminino , Humanos , Hungria/epidemiologia , Masculino , Estudos Retrospectivos , Caracteres Sexuais , Eslováquia/epidemiologia , Eslovênia/epidemiologia , Taxa de Sobrevida , Fatores de Tempo
19.
Immunol Res ; 10(3-4): 226-9, 1991.
Artigo em Inglês | MEDLINE | ID: mdl-1835480

RESUMO

Morphological data in humans and rodents and functional data of intraepithelial lymphocytes of mice support the idea that cytotoxic cells are a significant population of the human mucosa. Previously it was shown that human IEL have no spontaneous cell-mediated cytotoxicity and that human LPL cells have anti-CD3-mediated cytotoxicity. We confirm that most individuals have anti-CD3- or PHA-mediated cytotoxicity of LPL. In IEL we do not find cytotoxic function in short-term assays. There is no difference between patients with colon cancer and inflammatory bowel disease.


Assuntos
Mucosa Intestinal/imunologia , Linfócitos T Citotóxicos/imunologia , Adulto , Idoso , Antígenos de Diferenciação de Linfócitos T , Complexo CD3 , Citotoxicidade Imunológica , Células Epiteliais , Epitélio/imunologia , Humanos , Técnicas In Vitro , Mucosa Intestinal/citologia , Pessoa de Meia-Idade , Fito-Hemaglutininas/imunologia , Receptores de Antígenos de Linfócitos T
20.
Am J Cardiol ; 81(12): 1450-4, 1998 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-9645896

RESUMO

This study sought to compare the efficacy and safety of intravenous flecainide and sotalol for immediate cardioversion of atrial fibrillation. We performed a prospective, randomized, single-blind, multicenter trial, including 106 hemodynamically stable patients with atrial fibrillation, stratified according to duration of the arrhythmia. Exclusion criteria included severely reduced left ventricular systolic function, recent antiarrhythmic therapy, and hypokalemia. Patients were randomly assigned to receive either intravenous flecainide or intravenous sotalol. Trial medication was given at a dose of 1.5 mg/kg body weight (maximum 150 mg). Overall, 28 of 54 patients (52%) given flecainide and 12 of 52 patients (23%) given sotalol converted to sinus rhythm during the first 2 hours after start of the infusion (p = 0.003). Multivariate analysis confirmed that treatment allocation to flecainide, an arrhythmia duration of < or = 24 hours, higher plasma magnesium level at baseline, higher age for men, and lower age for women independently increases the probability of conversion. The frequency of adverse effects was not significantly different in the 2 treatment groups.


Assuntos
Antiarrítmicos/uso terapêutico , Fibrilação Atrial/tratamento farmacológico , Flecainida/uso terapêutico , Sotalol/uso terapêutico , Fatores Etários , Idoso , Antiarrítmicos/administração & dosagem , Esquema de Medicação , Feminino , Flecainida/administração & dosagem , Humanos , Infusões Intravenosas , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores Sexuais , Método Simples-Cego , Sotalol/administração & dosagem , Fatores de Tempo , Resultado do Tratamento
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