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1.
Br J Haematol ; 203(2): 202-211, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37485564

RESUMO

Diffuse large B-cell lymphoma (DLBCL) patients with relapsed or refractory (RR) disease have poor outcomes with current salvage regimens. We conducted a phase 2 trial to analyse the safety and efficacy of adding lenalidomide to R-ESHAP (LR-ESHAP) in patients with RR DLBCL. Subjects received 3 cycles of lenalidomide 10 mg/day on days 1-14 of every 21-day cycle, in combination with R-ESHAP at standard doses. Responding patients underwent autologous stem-cell transplantation (ASCT). The primary endpoint was the overall response rate (ORR) after 3 cycles. Centralized cell-of-origin (COO) classification was performed. Forty-six patients were included. The ORR after LR-ESHAP was 67% (35% of patients achieved complete remission). Patients with primary refractory disease (n = 26) had significantly worse ORR than patients with non-refractory disease (54% vs. 85%, p = 0.031). No differences in response rates according to the COO were observed. Twenty-eight patients (61%) underwent ASCT. At a median follow-up of 41 months, the estimated 3-year PFS and OS were 42% and 48%, respectively. The most common grade ≥3 adverse events were thrombocytopenia (70% of patients), neutropenia (67%) and anaemia (35%). There were no treatment-related deaths during LR-ESHAP cycles. In conclusion, LR-ESHAP is a feasible salvage regimen with promising efficacy results for patients with RR DLBCL.


Assuntos
Linfoma Difuso de Grandes Células B , Linfoma não Hodgkin , Neutropenia , Trombocitopenia , Humanos , Lenalidomida/efeitos adversos , Linfoma não Hodgkin/tratamento farmacológico , Linfoma Difuso de Grandes Células B/patologia , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Neutropenia/etiologia , Trombocitopenia/induzido quimicamente , Rituximab/uso terapêutico
2.
Support Care Cancer ; 29(7): 3497-3506, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33150521

RESUMO

PURPOSE: Evidence-based guidelines on how to prevent or treat cetuximab-related skin reactions are lacking and multiple care and management strategies are used. The main purpose of the present study is to gain information about the different skincare products being used against skin reactions in metastatic colorectal cancer (mCRC) and recurrent/metastatic (R/M) or locally advanced (LA) squamous cell cancer of the head and neck (SCCHN) patients treated with cetuximab. METHODS: An open-label, prospective observational study conducted in the Netherlands. The occurrence of skin reactions and the care and management options taken were documented for 16 weeks, starting from the first administration of cetuximab. RESULTS: A total of 103 patients were included in 7 hospitals. 38 patients (37%) developed a grade ≥ 2 skin reaction. Eighty-six patients could be analysed for the primary endpoint (73.3% males, mean age 62.4 years, n = 44 LA SCCHN, n = 16 R/M SCCHN, n = 26 mCRC). The most frequently used skin products at some point during the observation period were moisturizing products (70%), systemic antibiotics (64%), topical antibiotics (58%), lipid-regenerating (28%) and other topical products (28%). The overall use of products gradually increased from baseline to week 6-10, reducing by week 16. Hospital protocols were the primary reason (> 50%) for choice of the skincare products and medications. CONCLUSION: A variety of skin care products and antibiotics were commonly used. Only few patients developed severe cutaneous reactions. For patients, the occurrence of skin reactions did not influence their willingness to continue cetuximab therapy.


Assuntos
Antineoplásicos Imunológicos/efeitos adversos , Cetuximab/efeitos adversos , Dermatopatias/induzido quimicamente , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Inquéritos e Questionários
3.
Psychiatry Res ; 273: 706-711, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-31207856

RESUMO

Toxoplasmosis has been previously associated with an increased risk of having Schizophrenia or Bipolar disorder in several epidemiological studies. The aim of this observational, cross-sectional study was to examine the seroprevalence of Toxoplasma infection in a cohort of Italian psychiatric inpatients and to verify the presence of circulating Toxoplasma gondii DNA in the seropositive subjects. Sixty-three patients affected by bipolar or schizoaffective disorders according to DSM-5 criteria were enrolled. The presence of Toxoplasma infection was firstly examined using an indirect serological method (ELFA), and three different direct PCR-based methods were performed to detect circulating DNA in the seropositive patients. The seroprevalence of infection was 28.6%, with a significant association between higher age and the infection status. PCR, nested-PCR and Real-Time PCR revealed no positive samples for Toxoplasma gondii. This result is in contrast with recent data from case-control studies that detected parasite genome in patients with different neuropsychiatric diagnosis without clinical evidence of acute toxoplasmosis. Our findings are to be interpreted with caution, because of the small sample size, the heterogeneity of enrolled patients and the observational nature of the study. Further studies are needed to better define the clinical features correlated to the seropositive status in neuropsychiatric patients.


Assuntos
Transtorno Bipolar/sangue , DNA de Protozoário/sangue , Esquizofrenia/sangue , Toxoplasma/genética , Toxoplasmose/psicologia , Adulto , Transtorno Bipolar/parasitologia , Estudos de Casos e Controles , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase , Esquizofrenia/parasitologia , Estudos Soroepidemiológicos , Toxoplasmose/sangue , Toxoplasmose/parasitologia
4.
Clin. transl. oncol. (Print) ; 20(5): 630-638, mayo 2018. ilus
Artigo em Inglês | IBECS | ID: ibc-173540

RESUMO

Purpose. Management of metastatic disease in oncology includes monitoring of therapy response principally by imaging techniques like CT scan. In addition to some limitations, the irruption of liquid biopsy and its application in personalized medicine has encouraged the development of more efficient technologies for prognosis and follow-up of patients in advanced disease. Methods. PrediCTC constitutes a panel of genes for the assessment of circulating tumor cells (CTC) in metastatic colorectal cancer patients, with demonstrated improved efficiency compared to CT scan for the evaluation of early therapy response in a multicenter prospective study. In this work, we designed and developed a technology transfer strategy to define the market opportunity for an eventual implementation of PrediCTC in the clinical practice. Results. This included the definition of the regulatory framework, the analysis of the regulatory roadmap needed for CE mark, a benchmarking study, the design of a product development strategy, a revision of intellectual property, a cost-effectiveness study and an expert panel consultation. Conclusion. The definition and analysis of an appropriate technology transfer strategy and the correct balance among regulatory, financial and technical determinants are critical for the transformation of a promising technology into a viable technology, and for the decision of implementing liquid biopsy in the monitoring of therapy response in advanced disease


No disponible


Assuntos
Humanos , Biópsia , Oncologia/métodos , Células Neoplásicas Circulantes/patologia , Medicina de Precisão/métodos , Transferência de Tecnologia , Benchmarking , Avaliação de Custo-Efetividade
5.
Clin Transl Oncol ; 20(5): 630-638, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29058262

RESUMO

PURPOSE: Management of metastatic disease in oncology includes monitoring of therapy response principally by imaging techniques like CT scan. In addition to some limitations, the irruption of liquid biopsy and its application in personalized medicine has encouraged the development of more efficient technologies for prognosis and follow-up of patients in advanced disease. METHODS: PrediCTC constitutes a panel of genes for the assessment of circulating tumor cells (CTC) in metastatic colorectal cancer patients, with demonstrated improved efficiency compared to CT scan for the evaluation of early therapy response in a multicenter prospective study. In this work, we designed and developed a technology transfer strategy to define the market opportunity for an eventual implementation of PrediCTC in the clinical practice. RESULTS: This included the definition of the regulatory framework, the analysis of the regulatory roadmap needed for CE mark, a benchmarking study, the design of a product development strategy, a revision of intellectual property, a cost-effectiveness study and an expert panel consultation. CONCLUSION: The definition and analysis of an appropriate technology transfer strategy and the correct balance among regulatory, financial and technical determinants are critical for the transformation of a promising technology into a viable technology, and for the decision of implementing liquid biopsy in the monitoring of therapy response in advanced disease.


Assuntos
Neoplasias Colorretais/patologia , Oncologia/métodos , Células Neoplásicas Circulantes/patologia , Medicina de Precisão/métodos , Neoplasias Colorretais/sangue , Humanos , Biópsia Líquida , Espanha , Transferência de Tecnologia
6.
Microb Ecol ; 75(2): 495-504, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28803409

RESUMO

The pacific oyster Crassostrea gigas and the Mediterranean mussel Mytilus galloprovincialis are two widely farmed bivalve species which show contrasting behaviour in relation to microbial diseases, with C. gigas being more susceptible and M. galloprovincialis being generally resistant. In a recent study, we showed that different susceptibility to infection exhibited by these two bivalve species may depend on their different capability to kill invading pathogens (e.g., Vibrio spp.) through the action of haemolymph components. Specific microbial-host interactions may also impact bivalve microbiome structure and further influence susceptibility/resistance to microbial diseases. To further investigate this concept, a comparative study of haemolymph and digestive gland 16SrDNA gene-based bacterial microbiota profiles in C. gigas and M. galloprovincialis co-cultivated at the same aquaculture site was carried out using pyrosequencing. Bacterial communities associated with bivalve tissues (hemolymph and digestive gland) were significantly different from those of seawater, and were dominated by relatively few genera such as Vibrio and Pseudoalteromonas. In general, Vibrio accounted for a larger fraction of the microbiota in C. gigas (on average 1.7-fold in the haemolymph) compared to M. galloprovincialis, suggesting that C. gigas may provide better conditions for survival for these bacteria, including potential pathogenic species such as V. aestuarianus. Vibrios appeared to be important members of C. gigas and M. galloprovincialis microbiota and might play a contrasting role in health and disease of bivalve species. Accordingly, microbiome analyses performed on bivalve specimens subjected to commercial depuration highlighted the ineffectiveness of such practice in removing Vibrio species from bivalve tissues.


Assuntos
Bactérias/isolamento & purificação , Crassostrea/microbiologia , DNA Ribossômico/genética , Microbiota , Mytilus/microbiologia , Frutos do Mar/microbiologia , Animais , Aquicultura , Bactérias/classificação , Bactérias/genética , Crassostrea/crescimento & desenvolvimento , DNA Bacteriano/genética , Trato Gastrointestinal/microbiologia , Hemolinfa/microbiologia , Itália , Mytilus/crescimento & desenvolvimento , Filogenia , RNA Ribossômico 16S/genética , Água do Mar/microbiologia , Frutos do Mar/análise
7.
Microb Ecol ; 73(3): 734-738, 2017 04.
Artigo em Inglês | MEDLINE | ID: mdl-27888291

RESUMO

The detection and typing of Vibrio cholerae in natural aquatic environments encounter major methodological challenges related to the fact that the bacterium is often present in environmental matrices at very low abundance in nonculturable state. This study applied, for the first time to our knowledge, a whole-genome enrichment (WGE) and next-generation sequencing (NGS) approach for direct genotyping and metagenomic analysis of low abundant V. cholerae DNA (<50 genome unit/L) from natural water collected in the Morogoro river (Tanzania). The protocol is based on the use of biotinylated RNA baits for target enrichment of V. cholerae metagenomic DNA via hybridization. An enriched V. cholerae metagenome library was generated and sequenced on an Illumina MiSeq platform. Up to 1.8 × 107 bp (4.5× mean read depth) were found to map against V. cholerae reference genome sequences representing an increase of about 2500 times in target DNA coverage compared to theoretical calculations of performance for shotgun metagenomics. Analysis of metagenomic data revealed the presence of several V. cholerae virulence and virulence associated genes in river water including major virulence regions (e.g. CTX prophage and Vibrio pathogenicity island-1) and genetic markers of epidemic strains (e.g. O1-antigen biosynthesis gene cluster) that were not detectable by standard culture and molecular techniques. Overall, besides providing a powerful tool for direct genotyping of V. cholerae in complex environmental matrices, this study provides a 'proof of concept' on the methodological gap that might currently preclude a more comprehensive understanding of toxigenic V. cholerae emergence from natural aquatic environments.


Assuntos
DNA Bacteriano/genética , Metagenômica/métodos , Rios/microbiologia , Vibrio cholerae/genética , Vibrio cholerae/isolamento & purificação , Sequência de Bases , Técnicas de Genotipagem , Sequenciamento de Nucleotídeos em Larga Escala , Análise de Sequência de DNA , Tanzânia
8.
Aliment Pharmacol Ther ; 44(7): 704-14, 2016 10.
Artigo em Inglês | MEDLINE | ID: mdl-27485029

RESUMO

BACKGROUND: Refractory coeliac disease is a severe complication of coeliac disease with heterogeneous outcome. AIM: To create a prognostic model to estimate survival of patients with refractory coeliac disease. METHODS: We evaluated predictors of 5-year mortality using Cox proportional hazards regression on subjects from a multinational registry. Bootstrap resampling was used to internally validate the individual factors and overall model performance. The mean of the estimated regression coefficients from 400 bootstrap models was used to derive a risk score for 5-year mortality. RESULTS: The multinational cohort was composed of 232 patients diagnosed with refractory coeliac disease across seven centres (range of 11-63 cases per centre). The median age was 53 years and 150 (64%) were women. A total of 51 subjects died during a 5-year follow-up (cumulative 5-year all-cause mortality = 30%). From a multiple variable Cox proportional hazards model, the following variables were significantly associated with 5-year mortality: age at refractory coeliac disease diagnosis (per 20 year increase, hazard ratio = 2.21; 95% confidence interval, CI: 1.38-3.55), abnormal intraepithelial lymphocytes (hazard ratio = 2.85; 95% CI: 1.22-6.62), and albumin (per 0.5 unit increase, hazard ratio = 0.72; 95% CI: 0.61-0.85). A simple weighted three-factor risk score was created to estimate 5-year survival. CONCLUSIONS: Using data from a multinational registry and previously reported risk factors, we create a prognostic model to predict 5-year mortality among patients with refractory coeliac disease. This new model may help clinicians to guide treatment and follow-up.


Assuntos
Doença Celíaca/mortalidade , Linfócitos/patologia , Modelos Estatísticos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Doença Celíaca/fisiopatologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Modelos de Riscos Proporcionais , Sistema de Registros , Fatores de Risco , Adulto Jovem
9.
Cancer Chemother Pharmacol ; 76(4): 731-7, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26242221

RESUMO

PURPOSE: Previous studies have shown that docetaxel and cisplatin, as single agents, are effective and relatively well tolerated in patients with advanced gastric cancer. The aim of this study was to assess efficacy and toxicity of a biweekly regimen of docetaxel plus cisplatin in patients with advanced gastric cancer. PATIENTS/METHODS: Fifty-five patients with histologically proven advanced gastric cancer with at least 1 measurable lesion and ECOG PS ≤ 2 were enrolled. Patients received docetaxel 50 mg/m(2) and cisplatin 50 mg/m(2) every 2 weeks until progression disease, unbearable toxicity or a maximum of 12 cycles. RESULTS: In total, 426 cycles were administered (median 8.5 cycles) to 52 evaluable patients. One patient (1.9 %) showed a complete response, while 21 (40.4 %) had partial responses. The objective response rate was 42.3 % (95 % CI 28.9-55.7), the median time to progression was 5.5 months (95 % CI 4.0-7.0), and the median overall survival was 8.9 months (95 % CI 6.0-11.9). The most common grade 3-4 toxicities per cycle were haematological [neutropenia (5.9 %)]. CONCLUSIONS: Biweekly administration of docetaxel and cisplatin in advanced gastric cancer has a manageable toxicity profile and shows a promising antitumour activity as a first-line therapy.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma/tratamento farmacológico , Cisplatino/uso terapêutico , Cuidados Paliativos , Neoplasias Gástricas/tratamento farmacológico , Taxoides/uso terapêutico , Adulto , Idoso , Antineoplásicos/administração & dosagem , Antineoplásicos/efeitos adversos , Antineoplásicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Carcinoma/patologia , Cisplatino/administração & dosagem , Cisplatino/efeitos adversos , Docetaxel , Esquema de Medicação , Monitoramento de Medicamentos , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Neutropenia/induzido quimicamente , Espanha , Neoplasias Gástricas/patologia , Análise de Sobrevida , Taxoides/administração & dosagem , Taxoides/efeitos adversos
10.
Phys Chem Chem Phys ; 17(12): 8223-30, 2015 Mar 28.
Artigo em Inglês | MEDLINE | ID: mdl-25732332

RESUMO

Thermodynamic equilibrium for adsorption means that the chemical potential of gas and adsorbed phase are equal. A precise knowledge of the chemical potential is, however, often lacking, because the activity coefficient of the adsorbate is not known. Adsorption isotherms are therefore commonly fitted to ideal models such as the Langmuir, Sips or Henry models. We propose here a new procedure to find the activity coefficient and the equilibrium constant for adsorption which uses the thermodynamic factor. Instead of fitting the data to a model, we calculate the thermodynamic factor and use this to find first the activity coefficient. We show, using published molecular simulation data, how this procedure gives the thermodynamic equilibrium constant and enthalpies of adsorption for CO2(g) on graphite. We also use published experimental data to find similar thermodynamic properties of CO2(g) and of CH4(g) adsorbed on activated carbon. The procedure gives a higher accuracy in the determination of enthalpies of adsorption than ideal models do.

12.
Diabetes Metab ; 40(3): 204-10, 2014 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24503192

RESUMO

AIM: The aim of this study was to measure the capacity of glucose- and weight-related parameters to predict pregnancy-induced hypertensive disorders in women with gestational diabetes. METHODS: An observational study was conducted involving 2037 women with gestational diabetes. The associations of glycaemic and weight-related parameters with pregnancy-induced hypertensive disorders were obtained by univariate and adjusted multivariate analyses. Also, model predictability and attributable predictor risk percentages were calculated, and collinearity and factor interactions examined. RESULTS: Multivariate analyses revealed that hypertensive disorders were mainly predicted by average third-trimester glycated haemoglobin (HbA(1c)) levels ≥ 5.9%, by being overweight or obese before pregnancy and by excess gestational weight gain after adjusting for age, tobacco use, chronic hypertension, parity, urinary tract infections and gestational age at delivery. Prepregnancy body weight (overweight and obesity) had the strongest impact on pregnancy-related hypertensive disorders (attributable risk percentages were 51.5% and 88.8%, respectively). The effect of being overweight or obese on hypertensive disorders was enhanced by HbA(1c) levels and gestational weight gain, with elevated HbA(1c) levels multiplying the effect of being overweight before pregnancy. CONCLUSION: The average third-trimester HbA1c level is a novel risk factor for pregnancy-induced hypertensive disorders in women with gestational diabetes. HbA(1c) levels ≥ 5.9%, prepregnancy overweight or obesity and excess gestational weight gain are all independent risk factors of pregnancy-related hypertensive disorders in such women. In treated gestational diabetes patients, the strongest influence on hypertensive disorders is prepregnancy obesity.


Assuntos
Glicemia/metabolismo , Diabetes Gestacional/fisiopatologia , Hemoglobinas Glicadas/metabolismo , Hiperglicemia/fisiopatologia , Hipertensão Induzida pela Gravidez/fisiopatologia , Aumento de Peso , Adulto , Índice de Massa Corporal , Diabetes Gestacional/sangue , Feminino , Humanos , Hiperglicemia/sangue , Hiperglicemia/complicações , Hipertensão Induzida pela Gravidez/sangue , Hipertensão Induzida pela Gravidez/etiologia , Sobrepeso/fisiopatologia , Gravidez , Terceiro Trimestre da Gravidez , Estudos Retrospectivos , Fatores de Risco , Espanha
14.
Oper Dent ; 39(3): 228-38, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-23937405

RESUMO

OBJECTIVES: To evaluate the clinical performance of two one-step self-etch adhesives in noncarious cervical lesions (NCCL) under active or passive application mode. METHODS: Thirty-one patients with four NCCL were enrolled in this study. One hundred and twenty-four restorations were placed according to one of the following conditions: 1) Adper Prompt L-Pop (AP), active application (APA); 2) AP, passive application (APP); 3) Xeno III (XE), active application (XEA), or 4) XE, passive application (XEP). The restorations were evaluated by the FDI World Dental Federation criteria at baseline and after six, 12, and 24 months of clinical service. The effects of adhesive, mode of application, and recall period were assessed via mixed generalized linear model (α=0.05). RESULTS: The adhesive AP and the passive application mode showed significantly higher marginal staining than did XE and active application, respectively (p<0.05). With regard to the retention rates, the active application mode yielded higher retention rates at the 24-month recall compared to the passive application, regardless of the material. The individual retention rates (95% confidence interval) of both adhesives in the active application mode were the same, 96.8% (83.8-99.4%), while in the passive application rates were 87.1% (71.2-94.9%) and 80.7% (63.7-90.8%) for XE and AP, respectively. CONCLUSIONS: The active application improved the retention rates of both adhesives after 24 months and minimized the marginal staining at enamel margins.


Assuntos
Bis-Fenol A-Glicidil Metacrilato/uso terapêutico , Cimentos Dentários/uso terapêutico , Corrosão Dentária/métodos , Restauração Dentária Permanente/métodos , Adesivos Dentinários/uso terapêutico , Organofosfatos/uso terapêutico , Colo do Dente , Doenças Dentárias/terapia , Adulto , Bis-Fenol A-Glicidil Metacrilato/administração & dosagem , Feminino , Humanos , Masculino , Organofosfatos/administração & dosagem
16.
Fish Shellfish Immunol ; 35(6): 1906-15, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-24080469

RESUMO

Marine bivalves can accumulate large numbers of bacteria, in particular Vibrio species, whose persistence in bivalve tissues largely depends on their sensitivity to the bactericidal activity of circulating hemocytes and hemolymph soluble factors. The interactions between vibrios and hemolymph have been investigated, in particular in bivalve species susceptible to infection by certain Vibrio spp. and strains. In this work, the effects of two bivalve pathogens, Vibrio splendidus LGP32 (V.s.) and Vibrio aestuarianus 01/032 (V.a.), isolated from oyster mortality outbreaks, on the hemocytes of Mytilus galloprovincialis were investigated. In vitro, V.s., but not V.a., induced a dramatic decrease in lysosomal membrane stability-LMS in the hemocytes; both vibrios induced a moderate lysozyme release, with V.s. > V.a.. The V.s.-induced decrease in LMS was mediated by activation of PI-3Kinase, as shown by use of different kinase inhibitors. TEM analysis showed rapid internalization of both vibrios; however, V.s. lead to cellular and lysosomal damage and was able to survive within the hemocytes, whereas significant killing of V.a. was observed. In vivo, in mussels challenged with either vibrio and sampled at 6, 24 and 96 h post-injection, transient decreases in hemocyte LMS and progressive increases in serum lysozyme activity were observed, with V.s. > V.a.. Moreover, whereas V.a. was efficiently cleared from hemolymph, V.s. showed significant growth, that was maximal at 24 h p.i. when lowest LMS values were recorded in the hemocytes. Both vibrios also induced significant decreases in LMS in the digestive gland, again with V.s. > V.a.. The results indicate distinct interactions between mussel hemocytes and the two vibrio strains tested. The effects of V.s. may be due to the capacity of this strain to interfere with the signaling pathways involved in hemocyte function, thus escaping the bactericidal activity of the host cell, as observed for certain mammalian pathogens. Although V.s. is considered not pathogenic to Mytilus, this vibrio strain can affect the lysosomal function at the cellular and tissue level, thus leading to stressful conditions.


Assuntos
Hemócitos/microbiologia , Mytilus/microbiologia , Vibrio/fisiologia , Animais , Sistema Digestório/enzimologia , Sistema Digestório/metabolismo , Regulação da Expressão Gênica , Hemócitos/citologia , Hemócitos/metabolismo , Lisossomos/metabolismo , Microscopia Eletrônica de Transmissão , Muramidase/metabolismo , Mytilus/citologia , Mytilus/genética , Mytilus/metabolismo , Fatores de Tempo
17.
Horm Metab Res ; 45(13): 1002-8, 2013 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-23950037

RESUMO

Obestatin is a 23 amino acid peptide encoded by the ghrelin gene, which, like ghrelin, is mainly produced by the stomach, as well as by a wide range of other tissues. Obestatin remains a controversial peptide, as the initial finding of its binding to the orphan receptor GPR39 and the inhibitory effect on food intake has been questioned. In fact, to date, its biological effects are still largely unknown, although it is becoming clear that obestatin is a pleiotropic hormone, exerting a variety of effects in different cell types and tissues. Indeed, besides regulating cell proliferation and survival, obestatin has been shown to regulate glucose and lipid metabolism, both in vitro, in pancreatic ß-cells and adipocytes, and in vivo in rodents. Furthermore, its positive effects on glucose homeostasis, combined with the anti-inflammatory actions, make this peptide appealing as a candidate for treating metabolic disorders such as insulin resistance and diabetes.


Assuntos
Adipócitos/metabolismo , Grelina/metabolismo , Glucose/metabolismo , Células Secretoras de Insulina/metabolismo , Metabolismo dos Lipídeos , Adipócitos/patologia , Animais , Proliferação de Células , Sobrevivência Celular/genética , Diabetes Mellitus/metabolismo , Diabetes Mellitus/patologia , Grelina/genética , Glucose/genética , Humanos , Resistência à Insulina/genética , Células Secretoras de Insulina/patologia , Receptores Acoplados a Proteínas G/genética , Receptores Acoplados a Proteínas G/metabolismo
18.
Farm Hosp ; 37(3): 182-91, 2013.
Artigo em Espanhol | MEDLINE | ID: mdl-23789796

RESUMO

PURPOSE: To develop a tool to assist the decision-making for selection of Thrombopoyetin Receptor Agonists of adult patients with chronic immune primary thrombocytopenia (PTI). METHODS: Stochastic cost-effectiveness analysis with a 6-Health- States Markov model: stable, bleeding type 2, 3 or 4, post-type 4 bleeding and death. Each simulation analyzes a randomly generated scenario that describes patients characteristics, results measured in quality adjusted life years (QALYs) and costs (in ?2011). Distributions were obtained from the Spanish data of the European health survey of 2009, the INE estimate of population for 2011 and the 6-months clinical studies for Eltrombopag and Romiplostim. Utility values were obtained from the literature and the costs from Spanish official rates lists. A set of 10.000 random scenarios were generated and the patients evolution of each scenario was simulated during a time horizon of five years (in 2-weeks cycles). National Health System Perspective was used and the annual discount rate was set at 3%. RESULTS: Eltrombopag showed more effectiveness in 9.983 scenarios and there was no difference in 17. In 7.048 scenarios the alternative Eltombopag was dominant. It was cost-effective in another 19 (threshold 30,000 ??/AVAC). CONCLUSIONS: Eltrombopag was the most cost-effective alternative in 70,67% of the simulated scenarios and its use could produce lower costs to the NHS.


Objetivo: Desarrollar una herramienta de apoyo a la decisión en la selección de agonistas del receptor de trombopoyetina en el tratamiento de pacientes adultos con trombocitopenia inmune primaria crónica (PTI) refractaria. Métodos: Análisis coste-efectividad estocástico con un modelo de Markov de seis estados: estable, sangrado tipo 2, 3 ó 4, post-sangrado 4 y muerte. Cada simulación analiza un escenario aleatoriamente generado que describe las características del paciente, los resultados medidos en años de vida ajustados a calidad (AVACs) y los costes (en ?2011). Se obtuvieron distribuciones a partir de los datos para España de la Encuesta Europea de Salud de 2009, de la estimación de población para 2011 del INE, de los estudios a 6 meses de Eltrombopag y Romiplostim, de las utilidades obtenidas de la bibliografía y de las tarifas oficiales en España para procesos y actividad. Se generaron 10.000 escenarios aleatorios y se simuló la evolución de los pacientes de cada escenario durante un horizonte temporal de cinco años (ciclos de dos semanas). Perspectiva del Sistema Nacional de Salud (SNS). Tasa de descuento anual del 3% para costes y efectos. Resultados: En 9.983 escenarios Eltrombopag mostró mayor efectividad y en 17 no hubo diferencias. Eltombopag fue la alternativa dominante en 7.048 escenarios y la más coste efectiva en otros 19 (umbral 30.000 ?/AVAC). Conclusiones: Eltrombopag es la alternativa más coste-efectiva en el 70,67% de los escenarios simulados, por lo que su uso podría producir menores costes al SNS.


Assuntos
Benzoatos/economia , Simulação por Computador , Custos de Medicamentos/estatística & dados numéricos , Hidrazinas/economia , Modelos Econômicos , Púrpura Trombocitopênica Idiopática/economia , Pirazóis/economia , Receptores de Trombopoetina/agonistas , Proteínas Recombinantes de Fusão/economia , Trombopoetina/economia , Administração Oral , Adulto , Benzoatos/efeitos adversos , Benzoatos/uso terapêutico , Terapia Combinada , Redução de Custos , Análise Custo-Benefício , Feminino , Hemorragia/economia , Hemorragia/etiologia , Hemorragia/prevenção & controle , Humanos , Hidrazinas/efeitos adversos , Hidrazinas/uso terapêutico , Injeções Subcutâneas , Masculino , Cadeias de Markov , Pessoa de Meia-Idade , Programas Nacionais de Saúde/economia , Púrpura Trombocitopênica Idiopática/tratamento farmacológico , Púrpura Trombocitopênica Idiopática/epidemiologia , Púrpura Trombocitopênica Idiopática/cirurgia , Pirazóis/efeitos adversos , Pirazóis/uso terapêutico , Receptores Fc/uso terapêutico , Proteínas Recombinantes de Fusão/efeitos adversos , Proteínas Recombinantes de Fusão/uso terapêutico , Índice de Gravidade de Doença , Espanha , Esplenectomia , Processos Estocásticos , Trombopoetina/efeitos adversos , Trombopoetina/uso terapêutico , Fatores de Tempo
19.
Farm. hosp ; 37(3): 182-191, mayo-jun. 2013. tab, ilus
Artigo em Espanhol | IBECS | ID: ibc-117387

RESUMO

OBJETIVO: Desarrollar una herramienta de apoyo a la decisión en la selección de agonistas del receptor de trombopoyetina en el tratamiento de pacientes adultos con trombocitopenia inmune primaria crónica (PTI) refractaria. MÉTODOS: Análisis coste-efectividad estocástico con un modelo de Markov de seis estados: estable, sangrado tipo 2, 3 ó 4, postsangrado 4 y muerte. Cada simulación analiza un escenario aleatoriamente generado que describe las características del paciente, los resultados medidos en ańos de vida ajustados a calidad (AVACs) y los costes (en €2011). Se obtuvieron distribuciones a partir de los datos para Espańa de la Encuesta Europea de Salud de 2009, de la estimación de población para 2011 del INE, de los estudios a 6 meses de Eltrombopag y Romiplostim, de las utilidades obtenidas de la bibliografía y de las tarifas oficiales en Espańa para procesos y actividad. Se generaron 10.000 escenarios aleatorios y se simuló la evolución de los pacientes de cada escenario durante un horizonte temporal de cinco ańos (ciclos de dos semanas). Perspectiva del Sistema Nacional de Salud (SNS). Tasa de descuento anual del 3% para costes y efectos. RESULTADOS: En 9.983 escenarios Eltrombopag mostró mayor efectividad y en 17 no hubo diferencias. Eltombopag fue la alternativa dominante en 7.048 escenarios y la más coste efectiva en otros 19 (umbral 30.000 €/AVAC). CONCLUSIONES: Eltrombopag es la alternativa más coste-efectiva en el 70,67% de los escenarios simulados, por lo que su uso podría producir menores costes al SNS


PURPOSE: To develop a tool to assist the decision-making for selection of Thrombopoyetin Receptor Agonists of adult patients with chronic immune primary thrombocytopenia (PTI). METHODS: Stochastic cost-effectiveness analysis with a 6-Health-States Markov model: stable, bleeding type 2, 3 or 4, post-type 4 bleeding and death. Each simulation analyzes a randomly generated scenario that describes patients characteristics, results measured in quality adjusted life years (QALYs) and costs (in €2011). Distributions were obtained from the Spanish data of the European health survey of 2009, the INE estimate of population for 2011 and the 6-months clinical studies for Eltrombopag and Romiplostim. Utility values were obtained from the literature and the costs from Spanish official rates lists. A set of 10.000 random scenarios were generated and the patients evolution of each scenario was simulated during a time horizon of five years (in 2-weeks cycles). National Health System Perspective was used and the annual discount rate was set at 3%. RESULTS: Eltrombopag showed more effectiveness in 9.983 scenarios and there was no difference in 17. In 7.048 scenarios the alternative Eltombopag was dominant. It was cost-effective in another 19 (threshold 30,000 € /AVAC). CONCLUSIONS: Eltrombopag was the most cost-effective alternative in 70,67% of the simulated scenarios and its use could produce lower costs to the NHS


Assuntos
Humanos , Trombocitopenia/tratamento farmacológico , Receptores de Trombopoetina/agonistas , Custos de Medicamentos/estatística & dados numéricos , Medicamentos Bioequivalentes
20.
Cir Pediatr ; 25(1): 12-5, 2012 Jan.
Artigo em Espanhol | MEDLINE | ID: mdl-23113406

RESUMO

PURPOSE: Our experience en treatment of gastroschisis using a protocol with elective preterm delivery by caesarean section at 34-35 weeks and immediate primary abdominal wall closure. METHODS: During a period of 18 month we treated 5 patients with gastroschisis using the following management pathway: Starting at 30th week of gestation, weekly ultrasound evaluation of fetal gut and pulmonary maturation with corticosteroids. Delivery by elective caesarean section between 34-35 weeks or earlier if evidence of bowel compromise was reported en ultrasound study. Immediate surgical correction after birth with primary closure was preformed under control of abdominal pressure. RESULTS: Mean gestational age of our patient was 33,94 weeks, and mean birth weight was 2154 gr. None of the cases present inflammatory peel and we found no difficulties for reduction of the gut at time of surgery. Two patients presented an intestinal malrotation. Extubation was preformed 36-48 hours after surgery. We started a trofic diet at 3,6 days and parental nutrition was retired after a mean period of 15,8 days. The mean time of hospital stay was 33,4 days. One patient with intestinal obstruction had a consideriously increased length of hospital stay of 74 days. CONCLUSIONS: A management pathway for gastroschisis with selective preterm delivery by caesarean section and immediate surgical treatment probably reduces the experience of inflammatory peel. This pathway permits a early initiation of oral feeding, reduces times of parenteral nutrition and need of central catheters, and shortens length of hospital stay.


Assuntos
Cesárea , Gastrosquise/cirurgia , Doenças do Prematuro/cirurgia , Procedimentos Cirúrgicos Eletivos , Feminino , Humanos , Recém-Nascido , Recém-Nascido Prematuro , Masculino , Fatores de Tempo
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