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1.
Lancet Oncol ; 22(10): 1458-1467, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34543613

RESUMO

BACKGROUND: The benefit of extending aromatase inhibitor therapy beyond 5 years in the context of previous aromatase inhibitors remains controversial. We aimed to compare extended therapy with letrozole for 5 years versus the standard duration of 2-3 years of letrozole in postmenopausal patients with breast cancer who have already received 2-3 years of tamoxifen. METHODS: This multicentre, open-label, randomised, phase 3 trial was done at 69 hospitals in Italy. Women were eligible if they were postmenopausal at the time of study entry, had stage I-III histologically proven and operable invasive hormone receptor-positive breast cancer, had received adjuvant tamoxifen therapy for at least 2 years but no longer than 3 years and 3 months, had no signs of disease recurrence, and had an Eastern Cooperative Oncology Group performance status of 2 or lower. Patients were randomly assigned (1:1) to receive 2-3 years (control group) or 5 years (extended group) of letrozole (2·5 mg orally once a day). Randomisation, with stratification by centre, with permuted blocks of size 12, was done with a centralised, interactive, internet-based system that randomly generated the treatment allocation. Participants and investigators were not masked to treatment assignment. The primary endpoint was invasive disease-free survival in the intention-to-treat population. Safety analysis was done for patients who received at least 1 month of study treatment. This trial was registered with EudraCT, 2005-001212-44, and ClinicalTrials.gov, NCT01064635. FINDINGS: Between Aug 1, 2005, and Oct 24, 2010, 2056 patients were enrolled and randomly assigned to receive letrozole for 2-3 years (n=1030; control group) or for 5 years (n=1026; extended group). After a median follow-up of 11·7 years (IQR 9·5-13·1), disease-free survival events occurred in 262 (25·4%) of 1030 patients in the control group and 212 (20·7%) of 1026 in the extended group. 12-year disease-free survival was 62% (95% CI 57-66) in the control group and 67% (62-71) in the extended group (hazard ratio 0·78, 95% CI 0·65-0·93; p=0·0064). The most common grade 3 and 4 adverse events were arthralgia (22 [2·2%] of 983 patients in the control group vs 29 [3·0%] of 977 in the extended group) and myalgia (seven [0·7%] vs nine [0·9%]). There were three (0·3%) serious treatment-related adverse events in the control group and eight (0·8%) in the extended group. No deaths related to toxic effects were observed. INTERPRETATION: In postmenopausal patients with breast cancer who received 2-3 years of tamoxifen, extended treatment with 5 years of letrozole resulted in a significant improvement in disease-free survival compared with the standard 2-3 years of letrozole. Sequential endocrine therapy with tamoxifen for 2-3 years followed by letrozole for 5 years should be considered as one of the optimal standard endocrine treatments for postmenopausal patients with hormone receptor-positive breast cancer. FUNDING: Novartis and the Italian Ministry of Health. TRANSLATION: For the Italian translation of the abstract see Supplementary Materials section.


Assuntos
Antineoplásicos/administração & dosagem , Inibidores da Aromatase/administração & dosagem , Neoplasias da Mama/tratamento farmacológico , Letrozol/administração & dosagem , Mastectomia , Pós-Menopausa , Idoso , Antineoplásicos/efeitos adversos , Inibidores da Aromatase/efeitos adversos , Neoplasias da Mama/mortalidade , Neoplasias da Mama/patologia , Intervalo Livre de Doença , Esquema de Medicação , Feminino , Humanos , Itália , Letrozol/efeitos adversos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Moduladores Seletivos de Receptor Estrogênico/administração & dosagem , Tamoxifeno/administração & dosagem , Fatores de Tempo
3.
Semin Thromb Hemost ; 44(5): 453-457, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28470650

RESUMO

While lupus anticoagulant (LA), anticardiolipin antibodies (aCL), anti-ß2 glycoprotein I (anti-ß2GPI) antibodies represent the best available and the most widely used tests in the investigation for antiphospholipid syndrome (APS), evidence gathered in recent years indicates that other antiphospholipid antibodies (aPL) specificities may also play a role in the syndrome. Several autoantibodies have been shown to be complexed with phospholipids other than cardiolipin, or to some domains of ß2GPI, or else directed to other proteins of the coagulation cascade, and these have also been proposed to be of relevance to APS, and their diagnostic value and clinical utility are the focus of current research.


Assuntos
Anticorpos Antifosfolipídeos/imunologia , Síndrome Antifosfolipídica/sangue , Feminino , Humanos , Gravidez
4.
Rheumatology (Oxford) ; 57(4): 661-665, 2018 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-29342292

RESUMO

Objective: Recently, our group conceived a risk score for clinical manifestations of APS (the global APS score, or GAPSS) that takes into account the combination of independent cardiovascular risk factors and the aPL positivity profile. These include hyperlipidaemia, arterial hypertension, aCL, anti-ß2 glycoprotein-I, aPS-PT and the LA. A complementary version, the adjusted GAPSS (aGAPSS), which excludes aPS-PT, was also designed. The aim of our study was to systematically review the literature to assess the clinical utility of the GAPSS and aGAPSS for risk stratification of any APS clinical manifestation. Methods: We pooled data from available cohort studies, including a total of 10 studies, comprising 2273 patients, in which the GAPSS has been applied. A search strategy was developed a priori to identify an available cohort that reported findings which investigated the clinical utility of GAPSS or aGAPSS. Results: Seven studies used the GAPSS in their cohort, whereas three studies used the aGAPSS. In brief, we found a statistically significant difference in the cumulative GAPSS and aGAPSS between patients that experienced an arterial and/or venous thrombotic event [cumulative mean GAPSS (s.d.) 10.6 (4.74) and aGAPSS 7.6 (3.95)], patients without any thrombotic manifestation [cumulative GAPSS 7.01 (5.46) and aGAPSS 4.9 (4.33)] and patients with pregnancy morbidity [cumulative GAPSS 8.79 (2.59) and aGAPSS 6.7 (2.8)]. The highest levels of GAPSS were found in patients that experienced arterial thrombosis [mean GAPSS 12.2 (5.2)] and patients that experienced any recurrences of clinical manifestations of APS [mean GAPSS 13.7 (3.1)]. Conclusion: GAPSS may represent a useful tool to assess the thrombosis or pregnancy loss risk in aPL-positive patients, switching from the concept of aPL as a sole diagnostic antibody to aPL as risk factors for clinical events.


Assuntos
Síndrome Antifosfolipídica , Doenças Cardiovasculares , Medição de Risco/métodos , Síndrome Antifosfolipídica/complicações , Síndrome Antifosfolipídica/diagnóstico , Síndrome Antifosfolipídica/epidemiologia , Doenças Cardiovasculares/diagnóstico , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/etiologia , Saúde Global , Humanos , Morbidade/tendências
5.
J Transl Med ; 14(1): 292, 2016 10 13.
Artigo em Inglês | MEDLINE | ID: mdl-27737711

RESUMO

BACKGROUND: Activation of oncogenes downstream the EGFR gene contributes to colorectal tumorigenesis and determines the sensitivity to anti-EGFR treatments. The aim of this study was to evaluate the prognostic value of KRAS, BRAF, NRAS and PIK3CA mutations in a large collection of CRC patients from genetically-homogeneous Sardinian population. METHODS: A total of 1284 Sardinian patients with histologically-proven diagnosis of colorectal carcinoma (CRC) and presenting with metastatic disease were included into the study. Genomic DNA was isolated from formalin-fixed, paraffin-embedded primary tumour tissue samples of CRC patients and screened for mutations in RAS and BRAF genes, using pyrosequencing assays, and in PIK3CA gene, using automated DNA sequencing assays. RESULTS: Overall, mutation rates were 35.6 % for KRAS, 4.1 % for NRAS, and 2.1 % for BRAF. Among available DNA samples, 114/796 (14.3 %) primary CRCs were found to carry a mutation in the PIK3CA gene. In this subset of patients analysed in all four genes, a pathogenetic mutation of at least one gene was discovered in about half (378/796; 47.5 %) of CRC cases. A mutated BRAF gene was found to steadily act as a negative prognostic factor for either time to progression as metastatic disease (from detection of primary CRC to diagnosis of first distant metastasis; p = 0.009) or partial survival (from diagnosis of advanced disease to the time of death or last control; p = 0.006) or overall survival (p < 0.001). No significant impact on prognosis was observed for mutated KRAS, NRAS, and PIK3CA genes or combined RAS mutations (all RAS). CONCLUSIONS: Our study defines both prevalence and prognostic role of main activated oncogenes in a population-based large collection of CRC patients.


Assuntos
Classe I de Fosfatidilinositol 3-Quinases/genética , Neoplasias Colorretais/genética , GTP Fosfo-Hidrolases/genética , Proteínas de Membrana/genética , Mutação/genética , Proteínas Proto-Oncogênicas B-raf/genética , Proteínas Proto-Oncogênicas p21(ras)/genética , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Estudos de Associação Genética , Testes Genéticos , Geografia , Humanos , Itália , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Taxa de Mutação , Prognóstico
6.
J Autoimmun ; 75: 30-38, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27160365

RESUMO

Placental ischemic disease and adverse pregnancy outcomes are frequently observed in patients with antiphospholipid syndrome (APS). Despite the administration of conventional antithrombotic treatment a significant number of women continue to experience adverse pregnancy outcomes, with uncertain prevention and management. Efforts to develop effective pharmacological strategies for refractory obstetric APS cases will be of significant clinical benefit for both mothers and fetuses. Although the antimalarial drug, hydroxychloroquine (HCQ) is increasingly used to treat pregnant women with APS, little is known about its efficacy and mechanism of action of HCQ. Because complement activation plays a crucial and causative role in placental ischemia and abnormal fetal brain development in APS we hypothesised that HCQ prevents these pregnancy complications through inhibition of complement activation. Using a mouse model of obstetric APS that closely resembles the clinical condition, we found that HCQ prevented fetal death and the placental metabolic changes -measured by proton magnetic resonance spectroscopy in APS-mice. Using 111In labelled antiphospholipid antibodies (aPL) we identified the placenta and the fetal brain as the main organ targets in APS-mice. Using this same method, we found that HCQ does not inhibit aPL binding to tissues as was previously suggested from in vitro studies. While HCQ did not affect aPL binding to fetal brain it prevented fetal brain abnormal cortical development. HCQ prevented complement activation in vivo and in vitro. Complement C5a levels in serum samples from APS patients and APS-mice were lower after treatment with HCQ while the antibodies titres remained unchanged. HCQ prevented not only placental insufficiency but also abnormal fetal brain development in APS. By inhibiting complement activation, HCQ might also be an effective antithrombotic therapy.


Assuntos
Síndrome Antifosfolipídica/tratamento farmacológico , Encéfalo/efeitos dos fármacos , Ativação do Complemento/efeitos dos fármacos , Hidroxicloroquina/uso terapêutico , Placenta/efeitos dos fármacos , Complicações na Gravidez/tratamento farmacológico , Adulto , Animais , Antimaláricos/uso terapêutico , Síndrome Antifosfolipídica/sangue , Encéfalo/anormalidades , Encéfalo/embriologia , Complemento C3a/análise , Complemento C5a/análise , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Masculino , Camundongos Endogâmicos C57BL , Pessoa de Meia-Idade , Placenta/irrigação sanguínea , Gravidez , Complicações na Gravidez/sangue , Resultado da Gravidez , Resultado do Tratamento
7.
Ann Rheum Dis ; 74(11): 2028-33, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-24942381

RESUMO

BACKGROUND: Around 10% of all thrombotic cerebrovascular events (CVE) occur in young population and in a large proportion of those the trigger remains undetermined. Antiphospholipid antibodies (aPL) are recognised risk factors for ischaemic stroke and recurrent thrombotic events; however, the frequency of aPL in young people with CVE is still an unresolved issue. OBJECTIVES: To estimate the frequency of aPL in young adults with CVE and to determine whether aPL-positive young individuals are at greater risk of CVE when compared with individuals without aPL by systematically reviewing the literature. METHODS: Medline reports published between 1970 and 2013 investigating the presence of aPL in young patients (<50 years old) with CVE were included. The median frequency for positive aPL, including lupus anticoagulant, anticardiolipin antibodies (aCL) and antibodies against ß2Glycoprotein I (anti-ß2GPI), was calculated for stroke and transient ischaemic attacks. FINDINGS: This systematic review is based on available data from 5217 patients and controls from 43 studies analysing the frequency of aPL in young patients with CVE. The overall aPL frequency was estimated as 17.4% (range 5%-56%) for any CVE, 17.2% (range 2%-56%) for stroke and 11.7% (range 2%-45%) for transient ischaemic attack (TIA). The presence of aPL increased the risk for CVE by 5.48-fold (95% CI 4.42 to 6.79). Based on available data, the frequency of aPL in young patients with CVE can be estimated at 17%, rising up to 22% for aCL in patients with stroke. The presence of aPL seems to confer a fivefold higher risk for stroke or TIA when compared with controls. However, variability in test reproducibility and cut-off definition still represent an important methodological limitation for the current diagnostic testing for aPL. These observations should be confirmed by appropriately designed population studies.


Assuntos
Anticorpos Anticardiolipina/imunologia , Ataque Isquêmico Transitório/imunologia , Inibidor de Coagulação do Lúpus/imunologia , Acidente Vascular Cerebral/imunologia , beta 2-Glicoproteína I/imunologia , Adolescente , Adulto , Anticorpos Antifosfolipídeos/imunologia , Autoanticorpos/imunologia , Humanos , Pessoa de Meia-Idade , Adulto Jovem
8.
Rheumatology (Oxford) ; 54(1): 134-8, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-25122726

RESUMO

OBJECTIVE: The aim of this study was to evaluate the clinical relevance of the global APS score (GAPSS) in a cohort of primary APS patients. METHODS: This study included 62 consecutive patients with primary APS. Data on clinical manifestations, conventional cardiovascular risk factors and aPL profile were collected. The GAPSS was calculated for each patient by adding together the points corresponding to the risk factors, based on a linear transformation derived from the ß regression coefficient as follows: 3 for hyperlipidaemia, 1 for arterial hypertension, 5 for aCL IgG/IgM, 4 for anti-ß2 glycoprotein I IgG/IgM, 3 for aPS-PT IgG/IgM and 4 for LA. RESULTS: Higher GAPSS values were seen in patients who experienced thrombosis alone when compared with those with pregnancy loss alone [11.5 (S.D. 4.6) and 8.7 (S.D. 3.2), P = 0.04]. Patients with both thrombosis and pregnancy loss showed higher GAPSS than those with pregnancy loss alone [12.5 (S.D. 4.6) vs 8.7 (S.D. 3.2), P = 0.02]. Higher GAPSS values were also shown after subgrouping for the site of thrombosis when compared with pregnancy loss alone [12.2 (S.D. 5.2) for arterial thrombosis, 12.0 (S.D. 4.0) for venous vs 8.7 (S.D. 3.2), P = 0.02 and P = 0.04, respectively]. Patients with thrombotic recurrences showed higher GAPSS values when compared with those without recurrence [13.7 (S.D. 3.1) vs 9.4 (S.D. 3.9), P = 0.02]. This was also seen when comparing recurrences vs no recurrences independently of the site of the thrombotic event [13.9 (S.D. 3.6) vs 11.0 (S.D. 4.3), P = 0.01 for arterial and 13.6 (S.D. 2.18) vs 8.91 (S.D. 3.6), P < 0.01 for venous thrombosis]. GAPSS values ≥11 were strongly associated with a higher risk of recurrence [odds ratio (OR) 18.27 (95% CI 3.74, 114.5) for a cut-off of 11, OR 20.64 (95% CI 3.92, 185.92) for a cut-off of 12 and 21.64 (95% CI 3.89, 189.56) for a cut-off of 15]. GAPSS values ≥11 seemed to have the best risk accuracy in terms of sensitivity and specificity. CONCLUSION: The GAPSS is demonstrated to be a valid tool for a substantial improvement in risk stratification for thrombosis in primary APS.


Assuntos
Síndrome Antifosfolipídica/complicações , Síndrome Antifosfolipídica/diagnóstico , Doenças Cardiovasculares/epidemiologia , Índice de Gravidade de Doença , Aborto Espontâneo/epidemiologia , Adulto , Estudos de Coortes , Feminino , Humanos , Hiperlipidemias/epidemiologia , Hipertensão/epidemiologia , Masculino , Pessoa de Meia-Idade , Gravidez , Fatores de Risco , Sensibilidade e Especificidade , Trombose/epidemiologia
9.
Res Pract Thromb Haemost ; 8(5): 102468, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-39139554

RESUMO

Background: Optimal secondary prevention antithrombotic therapy for patients with antiphospholipid syndrome (APS)-associated ischemic stroke, transient ischemic attack, or other ischemic brain injury is undefined. The standard of care, warfarin or other vitamin K antagonists at standard or high intensity (international normalized ratio (INR) target range 2.0-3.0/3.0-4.0, respectively), has well-recognized limitations. Direct oral anticoagulants have several advantages over warfarin, and the potential role of high-dose direct oral anticoagulants vs high-intensity warfarin in this setting merits investigation. Objectives: The Rivaroxaban for Stroke patients with APS trial (RISAPS) seeks to determine whether high-dose rivaroxaban could represent a safe and effective alternative to high-intensity warfarin in adult patients with APS and previous ischemic stroke, transient ischemic attack, or other ischemic brain manifestations. Methods: This phase IIb prospective, randomized, controlled, noninferiority, open-label, proof-of-principle trial compares rivaroxaban 15 mg twice daily vs warfarin, target INR range 3.0-4.0. The sample size target is 40 participants. Triple antiphospholipid antibody-positive patients are excluded. The primary efficacy outcome is the rate of change in brain white matter hyperintensity volume on magnetic resonance imaging, a surrogate marker of presumed ischemic damage, between baseline and 24 months follow-up. Secondary outcomes include additional neuroradiological and clinical measures of efficacy and safety. Exploratory outcomes include high-dose rivaroxaban pharmacokinetic modeling. Conclusion: Should RISAPS demonstrate noninferior efficacy and safety of high-dose rivaroxaban in this APS subgroup, it could justify larger prospective randomized controlled trials.

10.
Artigo em Inglês | MEDLINE | ID: mdl-39135467

RESUMO

BACKGROUND: The 2023 ACR/EULAR Antiphospholipid Syndrome (APS) Classification Criteria development, aiming to identify patients with high likelihood of APS for research, employed a four-phase methodology. Phase I and II resulted in 27 proposed candidate criteria, organized into laboratory and clinical domains. Here, we summarize the last stage of Phase III efforts employing a consensus-based multi-criteria decision analysis (MCDA) to weigh candidate criteria and identify an APS classification threshold score. METHODS: We evaluated 192 unique, international real-world cases referred for "suspected APS" with a wide range of APS manifestations. Using proposed candidate criteria, subcommittee members rank-ordered 20 representative cases from highly unlikely to highly likely APS. During an in-person meeting, the subcommittee refined definitions and participated in an MCDA exercise to identify relative weights of candidate criteria. Using consensus decisions and pairwise criteria comparisons, 1000Minds™ software assigned criteria weights, and we rank ordered 192 cases by their additive scores. A consensus-based threshold score for APS classification was set. RESULTS: Pre-meeting evaluation of 20 representative cases demonstrated variability in APS assessment. MCDA resolved 81 pairwise decisions; relative weights identified domain item hierarchy. After assessing 192 cases by weights and additive scores, the Steering Committee reached consensus that APS classification should require separate clinical and laboratory scores, rather than a single aggregate score, to ensure high specificity. CONCLUSION: Using MCDA, candidate criteria preliminary weights were determined. Unlike other disease classification systems using a single aggregate threshold score, separate clinical and laboratory domain thresholds were incorporated into the new APS classification criteria.

11.
Rheumatology (Oxford) ; 52(8): 1397-403, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23315788

RESUMO

OBJECTIVE: To develop and validate a risk score [global APS score (GAPSS)] derived from the combination of independent risk for thrombosis and pregnancy loss (PL), taking into account the aPL profile, conventional cardiovascular risk factors and the autoimmune antibody profile. METHODS: This cross-sectional study included 211 consecutive SLE patients. Data on clinical manifestations, conventional cardiovascular risk factors, aPL profile, ANAs, ENA and anti-dsDNA were collected. Long-term low-dose aspirin, oral anticoagulant and HCQ treatment were also included in the analysis. Patients were randomly divided into two sets by a computer-generated randomized list. We developed GAPSS in the first set of patients (n = 106), assigning the risk factors identified by multivariate analysis weighted points proportional to the ß-regression coefficient values. GAPSS was validated in the second set of patients (n = 105). The relationship between GAPPS and thrombosis and/or PL was analysed. RESULTS: In the first set, higher values of GAPSS were seen in patients who experienced thrombosis and/or PL compared with those without clinical events [GAPSS 9.3 (4.8) (range 1-19) and 5.3 (4) (range 0-16), P < 0.001]. Also taken separately, patients who experienced thrombosis or PL showed higher GAPSS compared with those without clinical events [GAPSS 9.6 (4.8) (range 1-19) vs 4.9 (5) (range 0-14), P = 0.027 for thrombosis; 7.3 (5) vs 3.9 (5.1) (range 0-16), P = 0.024 for PL, respectively]. In the second set, the results were similar, with statistically higher values of GAPSS in patients with a clinical history of thrombosis and/or PL compared with those without events [GAPSS 9.5 (5.6) (range 0-20) and 3.9 (4.1) (range 0-17), P < 0.001). Higher values were also seen when subclassifying the patients according to the clinical manifestation, thrombosis or PL [GAPSS 9.5 (5.6) (range 0-20) vs 4.8 (5.4) (range 0-17), P = 0.036 for thrombosis; 7.9 (3.3) vs 3.8 (5.4) (range 0-16), P = 0.037 for PL, respectively). CONCLUSION: These data propose a substantial improvement in risk prediction of thrombosis or PL in SLE based on assessment of the GAPSS, a quantitative scoring system.


Assuntos
Aborto Espontâneo/imunologia , Anticorpos Antifosfolipídeos/imunologia , Síndrome Antifosfolipídica/diagnóstico , Doenças Cardiovasculares/diagnóstico , Lúpus Eritematoso Sistêmico/diagnóstico , Trombose/diagnóstico , Aborto Espontâneo/diagnóstico , Adulto , Análise de Variância , Doenças Cardiovasculares/imunologia , Estudos Transversais , Feminino , Humanos , Modelos Logísticos , Pessoa de Meia-Idade , Análise Multivariada , Gravidez , Protrombina/metabolismo , Medição de Risco , Sensibilidade e Especificidade , Índice de Gravidade de Doença , Trombose/imunologia , Reino Unido
12.
Clin Cancer Res ; 29(24): 5217-5226, 2023 12 15.
Artigo em Inglês | MEDLINE | ID: mdl-37888299

RESUMO

PURPOSE: In estrogen receptor-positive (ER+) breast cancer, single-nucleotide polymorphisms (SNP) in the aromatase gene might affect aromatase inhibitors (AI) metabolism and efficacy. Here, we assessed the impact of SNP on prognosis and toxicity of patients receiving adjuvant letrozole. EXPERIMENTAL DESIGN: We enrolled 886 postmenopausal patients in the study. They were treated with letrozole for 2 to 5 years after taking tamoxifen for 2 to 6 years, continuing until they completed 5 to 10 years of therapy. Germline DNA was genotyped for SNP rs4646, rs10046, rs749292, and rs727479. Log-rank test and Cox model were used for disease-free survival (DFS) and overall survival (OS). Cumulative incidence (CI) of breast cancer metastasis was assessed through competing risk analysis, with contralateral breast cancer, second malignancies and non-breast cancer death as competing events. CI of skeletal and cardiovascular events were assessed using DFS events as competing events. Subdistribution HR (sHR) with 95% confidence intervals were calculated through Fine-Gray method. RESULTS: No SNP was associated with DFS. Variants rs10046 [sHR 2.03, (1.04-2.94)], rs749292 [sHR 2.11, (1.12-3.94)], and rs727479 [sHR 2.62, (1.17-5.83)] were associated with breast cancer metastasis. Three groups were identified on the basis of the number of these variants (0, 1, >1). Variant-based groups were associated with breast cancer metastasis (10-year CI 2.5%, 7.6%, 10.7%, P = 0.035) and OS (10-year estimates 96.5%, 93.0%, 89.6%, P = 0.030). Co-occurrence of rs10046 and rs749292 was negatively associated with 10-year CI of skeletal events (3.2% vs. 10%, P = 0.033). A similar association emerged between rs727479 and cardiovascular events (0.3% vs. 2.1%, P = 0.026). CONCLUSIONS: SNP of aromatase gene predict risk of metastasis and AI-related toxicity in ER+ early breast cancer, opening an opportunity for better treatment individualization.


Assuntos
Inibidores da Aromatase , Neoplasias da Mama , Feminino , Humanos , Aromatase/genética , Inibidores da Aromatase/efeitos adversos , Inibidores da Aromatase/toxicidade , Biomarcadores , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/genética , Neoplasias da Mama/patologia , Doenças Cardiovasculares/induzido quimicamente , Doenças Cardiovasculares/genética , Quimioterapia Adjuvante , Letrozol/efeitos adversos , Polimorfismo de Nucleotídeo Único , Tamoxifeno/uso terapêutico
13.
Ann Rheum Dis ; 71(2): 242-4, 2012 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21953349

RESUMO

OBJECTIVES: Although the medical literature currently provides a growing number of isolated case reports of patients with clinically well-defined antiphospholipid syndrome (APS) and persistently negative antiphospholipid antibodies (aPL), there are no studies including a series of patients addressing the clinical features of this condition. METHODS: The authors assessed clinical manifestations of APS in 154 patients: 87 patients with seropositive APS and 67 patients with thrombosis and/or pregnancy morbidity persistently negative for aPL and presenting with at least two additional non-criteria manifestations of APS (the so-called 'seronegative APS', SN-APS). Patients were interviewed at the time of recruitment, and a retrospective file review was carried out. RESULTS: There were no significant differences in the frequency of thrombotic events or obstetric morbidity in patients with SN-APS versus patients with seropositive APS: deep vein thrombosis (31.4% vs 31.0%), pulmonary embolism (23.8% vs 28.7%), stroke (14.9% vs 17.2%), transient ischaemic attack (11.9% vs 10.3%), early spontaneous abortions (67.1% vs 52.1%), stillbirths (62.5% vs 59.4%), prematurity (28.1% vs 21.7%) or pre-eclampsia (28.1% vs 23.1%). CONCLUSIONS: Classic and SN-APS patients show similar clinical profiles. The results suggest that clinical management in patients with APS should not be based only on the presence of conventional aPL.


Assuntos
Anticorpos Antifosfolipídeos/sangue , Síndrome Antifosfolipídica/diagnóstico , Aborto Espontâneo/diagnóstico , Aborto Espontâneo/imunologia , Adulto , Síndrome Antifosfolipídica/imunologia , Doenças Autoimunes/imunologia , Biomarcadores/sangue , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Gravidez , Complicações na Gravidez/diagnóstico , Complicações na Gravidez/imunologia , Resultado da Gravidez , Embolia Pulmonar/diagnóstico , Embolia Pulmonar/imunologia , Estudos Retrospectivos , Natimorto , Trombose/diagnóstico , Trombose/imunologia
14.
J Transl Med ; 10: 178, 2012 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-22931052

RESUMO

BACKGROUND: Role of KRAS, BRAF and PIK3CA mutations in pathogenesis of colorectal cancer (CRC) has been recently investigated worldwide. In this population-based study, we evaluated the incidence rates and distribution of such somatic mutations in genetically isolated population from Sardinia. METHODS: From April 2009 to July 2011, formalin-fixed paraffin-embedded tissues (N = 478) were prospectively collected from Sardinian CRC patients at clinics across the entire island. Genomic DNA was isolated from tissue sections and screened for mutations in KRAS, BRAF, and PIK3CA genes by automated DNA sequencing. RESULTS: Overall, KRAS tumour mutation rate was 30% (145/478 positive cases). Distribution of mutation carriers was surprisingly different within the island: 87/204 (43%) in North Sardinia vs. 58/274 (21%) in Middle-South Sardinia (p<0.001). Among 384 CRC cases whose DNA was available, only one (0.3%) patient carried a mutation in BRAF gene; PIK3CA was found mutated in 67 (17%) patients. A significant inverse distribution of PIK3CA mutation rates was observed within Sardinian population: 19/183 (10%) cases from northern vs. 48/201 (24%) cases from central-southern island (p<0.001). This heterogeneity in frequencies of KRAS/PIK3CA somatic mutations is consistent with already-reported discrepancies in distribution of germline mutations for other malignancies within Sardinian population. Preliminary clinical evaluation of 118 KRAS wild-type patients undergoing anti-EGFR-based treatment indicated lack of role for PIK3CA in predicting response to therapy. CONCLUSIONS: Our findings support the hypothesis that differences in patients' origins and related genetic backgrounds may contribute to even determine the incidence rate of somatic mutations in candidate cancer genes.


Assuntos
Neoplasias Colorretais/genética , Genes ras , Genética Populacional , Mutação , Fosfatidilinositol 3-Quinases/genética , Proteínas Proto-Oncogênicas B-raf/genética , Sequência de Bases , Classe I de Fosfatidilinositol 3-Quinases , Primers do DNA , Feminino , Humanos , Itália , Masculino , Reação em Cadeia da Polimerase
15.
Brain Sci ; 12(1)2022 Jan 11.
Artigo em Inglês | MEDLINE | ID: mdl-35053834

RESUMO

Antiphospholipid syndrome (APS) is a common autoimmune pro-thrombotic condition characterised by thrombosis and pregnancy morbidity. There are a broad range of neuropsychiatric manifestations associated with APS, from focal symptoms to more global dysfunction. Patients commonly present with transient ischaemic attacks and ischaemic strokes, with identifiable lesions on brain imaging. However, the underlying pathogenesis remains uncertain in other manifestations, such as cognitive dysfunction, seizures, headache and chorea. The aim is to provide a comprehensive review of the various neuropsychiatric manifestations associated with APS. A detailed literature search was applied to PubMed, including citations from 1983 to December 2021.

16.
Tumori ; 95(4): 557-61, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19856678

RESUMO

BACKGROUND: Polycystic liver disease (PLD) is a rare, congenital, benign condition characterized by the presence of multiple bile-duct-derived epithelial cysts in the liver parenchyma. The disease is usually asymptomatic, but cyst growth can result in complications such as ascites, esophageal varices, jaundice and hepatic failure. The exact mechanism leading to cyst growth is unclear, but estrogenic stimulation and paracrine action of vascular endothelial growth factor (VEGF) are thought to play a role in the growth of cyst epithelium. CASE REPORT: We report a case of acute liver failure in a young woman with PLD and liver metastases from breast carcinoma. RESULTS: No data are available in the literature about metastatic liver involvement in PLD patients affected by breast cancer. The prognosis of patients with liver metastases is generally poor but fulminant liver failure is a very rare occurrence. Estrogen stimulation seems to be a risk factor for breast cancer and severe PLD. In the reported case, the presence of either the cysts or the metastatic lesions may have resulted in more extensive liver damage. CONCLUSIONS: The adoption of drugs selected in relation to their hepatic toxicity together with careful monitoring of liver function is warranted in the management of breast cancer patients affected by PLD, in order to reduce the risk of liver failure.


Assuntos
Neoplasias da Mama/secundário , Hepatopatias/complicações , Falência Hepática Aguda/etiologia , Neoplasias Hepáticas/secundário , Adulto , Antineoplásicos/uso terapêutico , Neoplasias da Mama/fisiopatologia , Neoplasias da Mama/terapia , Terapia Combinada , Cistos/etiologia , Cistos/patologia , Feminino , Humanos , Hepatopatias/fisiopatologia , Falência Hepática Aguda/patologia , Falência Hepática Aguda/fisiopatologia , Neoplasias Hepáticas/fisiopatologia , Mastectomia , Radioterapia
18.
F1000Res ; 72018.
Artigo em Inglês | MEDLINE | ID: mdl-30026918

RESUMO

Systemic lupus erythematosus (SLE) is a chronic autoimmune disease presenting highly heterogeneous clinical manifestations and multi-systemic involvement. Patients are susceptible to relapse- and remission, thus making management challenging. Moreover, a considerable number of side effects may occur with conventional therapies; therefore, there is clearly a need for new therapeutic strategies. Since the pathogenesis of SLE is highly complex, it is far from being fully understood. However, greater understanding of the pathways and of the cellular and molecular mediators involved in SLE is being achieved. Emerging evidence has allowed the development of new biological therapeutic options targeting crucial molecular mediators involved in the pathogenesis of SLE. This literature review analyzes the availability of biological and target-directed treatments, phase II and III trials, and new therapies that are being developed for the treatment of SLE.

19.
Rheum Dis Clin North Am ; 32(3): 465-90, 2006 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-16880079

RESUMO

The importance of cerebral disease in patients with the Hughes syndrome is now becoming more widely recognized. The range of neuropsychiatric manifestations of APS is comprehensive, and includes focal symptoms attributable to lesions in a specific area of the brain as well as diffuse or global dysfunction. Patients with APS frequently present with strokes and TIA, but a wide spectrum of other neurologic features-also including non thrombotic neurologic syndromes-has been described in association with the presence of aPL. The recognition of APS has had a profound impact on the understanding and management of the treatment of CNS manifestations associated with connective tissue diseases, in particular, SLE. Many patients with focal neurologic manifestations and aPL, who a few years ago would have received high-dose corticosteroids or immunosuppression, are often successfully treated with anticoagulation. In our opinion, testing for aPL may have a major diagnostic and therapeutic impact not only in patients with autoimmune diseases and neuropsychiatric manifestations, but also in young individuals who develop cerebral ischemia, in those with atypical multiple sclerosis, transverse myelitis, and atypical seizures. We would also recommend testing for aPL for young individuals found with multiple hyperintensity lesions on brain MRI in the absence of other possible causes,especially when under the age of 40 years. It is our practice to anticoagulate patients with aPL suffering from cerebral ischemia with a target INR of 3.0 to prevent recurrences. Low-dose aspirin alone (with occasional exceptions)does not seem helpful to prevent recurrent thrombosis in these patients. Our recommendation, once the patient has had a proven thrombosis associated with aPL, is long-term (possibly life-long) warfarin therapy. Oral anti coagulation carries a risk of hemorrhage, but in our experience the risk of serious bleeding in patients with APS and previous thrombosis treated with oral anticoagulation to a target INR of 3.5 was similar to that in groups of patients treated with lower target ratios. Although a double-blind crossover trial comparing low molecular weight heparin with placebo in patients with aPL and chronic headaches did not show a significant difference in the beneficial effect of low molecular weight heparin versus placebo, in our experience selected patients with aPL and neuropsychiatric manifestations such as seizures, severe cognitive dys-function, and intractable headaches unresponsive to conventional treatment may respond to anticoagulant treatment. The neurologic ramifications of Hughes syndrome are extensive, and it behoves clinicians in all specialties to be aware of this syndrome because treatment with anticoagulation may profoundly change the outlook for these patients.


Assuntos
Síndrome Antifosfolipídica/complicações , Encefalopatias/etiologia , Encéfalo/patologia , Anticoagulantes/uso terapêutico , Síndrome Antifosfolipídica/tratamento farmacológico , Síndrome Antifosfolipídica/fisiopatologia , Encéfalo/fisiopatologia , Encefalopatias/tratamento farmacológico , Encefalopatias/fisiopatologia , Humanos
20.
World J Gastroenterol ; 12(34): 5565-8, 2006 Sep 14.
Artigo em Inglês | MEDLINE | ID: mdl-17007002

RESUMO

Esophageal cancer (EC) is a highly lethal disease. Approximately 50% of patients present with metastatic EC and most patients with localized EC will have local recurrence or develop metastases, despite potentially curative local therapy. The most common sites of distant recurrence are represented by lung, liver and bone while brain and breast metastases are rare. Usually patients with advanced disease are not treated aggressively and their median survival is six months. We report a woman patient who developed breast and brain metastases after curative surgery. We treated her with a highly aggressive chemotherapeutic and surgical combination resulting in a complete remission of the disease even after 11-year follow-up. We think that in super selected patients with more than one metastasis, when functional status is good and metastases are technically resectable, a surgical excision may be considered as a salvage option and chemotherapy should be delivered to allow a systemic control.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Encefálicas/cirurgia , Neoplasias da Mama/cirurgia , Carcinoma de Células Escamosas/cirurgia , Neoplasias Esofágicas/cirurgia , Neoplasias Encefálicas/tratamento farmacológico , Neoplasias Encefálicas/secundário , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/secundário , Carcinoma de Células Escamosas/tratamento farmacológico , Carcinoma de Células Escamosas/secundário , Cisplatino/administração & dosagem , Terapia Combinada , Neoplasias Esofágicas/patologia , Feminino , Fluoruracila/administração & dosagem , Humanos , Pessoa de Meia-Idade , Metástase Neoplásica/terapia , Recidiva , Resultado do Tratamento
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