Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 73
Filtrar
Mais filtros

País/Região como assunto
Tipo de documento
Intervalo de ano de publicação
1.
J Clin Monit Comput ; 2024 Jun 17.
Artigo em Inglês | MEDLINE | ID: mdl-38884875

RESUMO

BACKGROUND: Robotic-assisted laparoscopic radical prostatectomy (RALP) requires pneumoperitoneum and steep Trendelenburg position. Our aim was to investigate the influence of the combination of pneumoperitoneum and Trendelenburg position on mechanical power and its components during RALP. METHODS: Sixty-one prospectively enrolled patients scheduled for RALP were studied in supine position before surgery, during pneumoperitoneum and Trendelenburg position and in supine position after surgery at constant ventilatory setting. In a subgroup of 17 patients the response to increasing positive end-expiratory pressure (PEEP) from 5 to 10 cmH2O was studied. RESULTS: The application of pneumoperitoneum and Trendelenburg position increased the total mechanical power (13.8 [11.6 - 15.5] vs 9.2 [7.5 - 11.7] J/min, p < 0.001) and its elastic and resistive components compared to supine position before surgery. In supine position after surgery the total mechanical power and its elastic component decreased but remained higher compared to supine position before surgery. Increasing PEEP from 5 to 10 cmH2O within each timepoint significantly increased the total mechanical power (supine position before surgery: 9.8 [8.4 - 10.4] vs 12.1 [11.4 - 14.2] J/min, p < 0.001; pneumoperitoneum and Trendelenburg position: 13.8 [12.2 - 14.3] vs 15.5 [15.0 - 16.7] J/min, p < 0.001; supine position after surgery: 10.2 [9.4 - 10.7] vs 12.7 [12.0 - 13.6] J/min, p < 0.001), without affecting respiratory system elastance. CONCLUSION: Mechanical power in healthy patients undergoing RALP significantly increased both during the pneumoperitoneum and Trendelenburg position and in supine position after surgery. PEEP always increased mechanical power without ameliorating the respiratory system elastance.

2.
Nutr Cancer ; 74(1): 2-11, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-33148022

RESUMO

Nutrition and metabolism are altered in patients with gastroenteropancreatic neuroendocrine tumors, which is related to excessive production of gastrointestinal hormones, peptides, and amines that can cause maldigestion, diarrhea, steatorrhea, and altered gastrointestinal motility. Patients with carcinoid syndrome are at risk of malnutrition due to tryptophan depletion, reduced intake of food, and loss of appetite because of diarrhea and/or flushing. To date, there is limited information on the nutritional issues faced by patients with neuroendocrine tumors, and on what specific recommendations should be made to patients concerning nutrition at various stages of the disease process. Dietary planning should therefore be an integral part of multidisciplinary management for patients with neuroendocrine tumors. Herein, we review current guidance for nutrition in patients with neuroendocrine tumors, focusing on intake of amines and foods to avoid, as well as concurrent medications. We also propose a new and practical food pyramid based on the principles of Mediterranean diet 4.0 that can be easily adapted according to the unmet needs of patients with neuroendocrine tumors at all stages of disease. The overarching goal of the present review is to create greater awareness of nutritional care and considerations that should be given to patients with neuroendocrine tumors.


Assuntos
Tumor Carcinoide , Dieta Mediterrânea , Neoplasias Intestinais , Tumores Neuroendócrinos , Humanos , Estado Nutricional
3.
Anesthesiology ; 134(6): 949-965, 2021 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-33819339

RESUMO

Lung ultrasound is increasingly used in emergency departments, medical wards, and critical care units-adult, pediatric, and neonatal. In vitro and in vivo studies show that the number and type of artifacts visualized change with lung density. This has led to the idea of a quantitative lung ultrasound approach, opening up new prospects for use not only as a diagnostic but also as a monitoring tool. Consequently, the multiple scoring systems proposed in the last few years have different technical approaches and specific clinical indications, adaptable for more or less time-dependent patients. However, multiple scoring systems may generate confusion among physicians aiming at introducing lung ultrasound in their clinical practice. This review describes the various lung ultrasound scoring systems and aims to clarify their use in different settings, focusing on technical aspects, validation with reference techniques, and clinical applications.


Assuntos
Pneumopatias/diagnóstico por imagem , Ultrassonografia/métodos , Humanos , Pulmão/diagnóstico por imagem
4.
BMC Musculoskelet Disord ; 22(1): 1031, 2021 Dec 10.
Artigo em Inglês | MEDLINE | ID: mdl-34893042

RESUMO

BACKGROUND: Suction drainage is commonly applied after total knee arthroplasty (TKA) and unicompartmental knee arthroplasty (UKA) to reduce hematoma, swelling and to favor surgical wound healing. However, its efficacy remains controversial; thus, the purpose of this study is to evaluate drainage efficiency in the management of postoperative bleeding in TKA and UKA. METHODS: The cohort comprised 134 clinical records of patients affected by knee osteoarthritis (OA) who underwent either TKA or UKA. All the patients were subdivided into 2 groups: the first one with drainage and the second one without drainage (respectively 61 and 73 patients). For each group, hemoglobin levels in the preoperative, first, second and third postoperative day were collected. Postoperative complications such as swelling, bleeding from the surgical wound or the need for blood transfusion, were also recorded. RESULTS: Our results did not show any significant difference of hemoglobin levels in the first (p = 0.715), second (p = 0.203) and third post-operative day (p = 0.467) between the two groups. Moreover, no significant correlation between knee swelling or transfusion rate and the drainage was observed (p = 0.703 and p = 0.662 respectively). Besides, a significant correlation was found between bleeding from the surgical wound and the absence of drainage (p = 0.006). CONCLUSIONS: The study demonstrates how the routine use of suction drainage does not provide substantial benefits in the postoperative blood loss management after TKA or UKA. TRIAL REGISTRATION: ClinicalTrials.gov NCT04508101 , 09/08/2020, Retrospectively registered LEVEL OF EVIDENCE: III.


Assuntos
Artroplastia do Joelho , Osteoartrite do Joelho , Artroplastia do Joelho/efeitos adversos , Humanos , Osteoartrite do Joelho/cirurgia , Hemorragia Pós-Operatória/epidemiologia , Hemorragia Pós-Operatória/etiologia , Hemorragia Pós-Operatória/terapia , Estudos Retrospectivos , Sucção
5.
Med Lav ; 109(3): 225-35, 2018 05 28.
Artigo em Italiano | MEDLINE | ID: mdl-29943754

RESUMO

Since the end of the 19th century, X-rays have been used to detect lung diseases. In Italy, 207,096 miniature chest radiographs were taken from 1941 to 1948. Traditional radiographs gave better results, but miniature chest radiographs were useful for screening. Indeed, the development of mobile miniature chest radiography units resulted in an improvement in mass X-rays screening for the detection of penumoconiosis. These mobile miniature units were mounted on a bus chassis, a solution that allowed to easily reach workers. The authors analyze some models of X-ray wagon units used by the "Clinica del Lavoro" in Milan in the 1950s. From the point of view of medical museology, the preservation of these devices requires appropriate spaces.


Assuntos
Doenças Profissionais/história , Medicina do Trabalho/história , Pneumoconiose/história , Radiografia Torácica/história , Desenho de Equipamento/história , História do Século XX , Humanos , Itália
6.
Am J Respir Crit Care Med ; 193(11): 1254-63, 2016 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-26699672

RESUMO

RATIONALE: The assessment of lung recruitability in patients with acute respiratory distress syndrome (ARDS) may be important for planning recruitment maneuvers and setting positive end-expiratory pressure (PEEP). OBJECTIVES: To determine whether lung recruitment measured by respiratory mechanics is comparable with lung recruitment measured by computed tomography (CT). METHODS: In 22 patients with ARDS, lung recruitment was assessed at 5 and 15 cm H2O PEEP by using respiratory mechanics-based methods: (1) increase in gas volume between two pressure-volume curves (P-Vrs curve); (2) increase in gas volume measured and predicted on the basis of expected end-expiratory lung volume and static compliance of the respiratory system (EELV-Cst,rs); as well as by CT scan: (3) decrease in noninflated lung tissue (CT [not inflated]); and (4) decrease in noninflated and poorly inflated tissue (CT [not + poorly inflated]). MEASUREMENTS AND MAIN RESULTS: The P-Vrs curve recruitment was significantly higher than EELV-Cst,rs recruitment (423 ± 223 ml vs. 315 ± 201 ml; P < 0.001), but these measures were significantly related to each other (R(2) = 0.93; P < 0.001). CT (not inflated) recruitment was 77 ± 86 g and CT (not + poorly inflated) was 80 ± 67 g (P = 0.856), and these measures were also significantly related to each other (R(2) = 0.20; P = 0.04). Recruitment measured by respiratory mechanics was 54 ± 28% (P-Vrs curve) and 39 ± 25% (EELV-Cst,rs) of the gas volume at 5 cm H2O PEEP. Recruitment measured by CT scan was 5 ± 5% (CT [not inflated]) and 6 ± 6% (CT [not + poorly inflated]) of lung tissue. CONCLUSIONS: Respiratory mechanics and CT measure-under the same term, "recruitment"-two different entities. The respiratory mechanics-based methods include gas entering in already open pulmonary units that improve their mechanical properties at higher PEEP. Consequently, they can be used to assess the overall improvement of inflation. The CT scan measures the amount of collapsed tissue that regains inflation. Clinical trial registered with www.clinicaltrials.gov (NCT00759590).


Assuntos
Pulmão/diagnóstico por imagem , Pulmão/fisiopatologia , Síndrome do Desconforto Respiratório/diagnóstico por imagem , Síndrome do Desconforto Respiratório/fisiopatologia , Mecânica Respiratória/fisiologia , Tomografia Computadorizada por Raios X/métodos , Idoso , Feminino , Humanos , Complacência Pulmonar , Medidas de Volume Pulmonar , Masculino , Pessoa de Meia-Idade
7.
Eur Respir J ; 47(1): 233-42, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26493798

RESUMO

The aim of the study was to determine the size and location of homogeneous inflamed/noninflamed and inhomogeneous inflamed/noninflamed lung compartments and their association with acute respiratory distress syndrome (ARDS) severity.In total, 20 ARDS patients underwent 5 and 45 cmH2O computed tomography (CT) scans to measure lung recruitability. [(18)F]2-fluoro-2-deoxy-d-glucose ([(18)F]FDG) uptake and lung inhomogeneities were quantified with a positron emission tomography-CT scan at 10 cmH2O. We defined four compartments with normal/abnormal [(18)F]FDG uptake and lung homogeneity.The homogeneous compartment with normal [(18)F]FDG uptake was primarily composed of well-inflated tissue (80±16%), double-sized in nondependent lung (32±27% versus 16±17%, p<0.0001) and decreased in size from mild, moderate to severe ARDS (33±14%, 26±20% and 5±9% of the total lung volume, respectively, p=0.05). The homogeneous compartment with high [(18)F]FDG uptake was similarly distributed between the dependent and nondependent lung. The inhomogeneous compartment with normal [(18)F]FDG uptake represented 4% of the lung volume. The inhomogeneous compartment with high [(18)F]FDG uptake was preferentially located in the dependent lung (21±10% versus 12±10%, p<0.0001), mostly at the open/closed interfaces and related to recruitability (r(2)=0.53, p<0.001).The homogeneous lung compartment with normal inflation and [(18)F]FDG uptake decreases with ARDS severity, while the inhomogeneous poorly/not inflated compartment increases. Most of the lung inhomogeneities are inflamed. A minor fraction of healthy tissue remains in severe ARDS.


Assuntos
Pulmão/diagnóstico por imagem , Síndrome do Desconforto Respiratório/diagnóstico por imagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Fluordesoxiglucose F18 , Humanos , Masculino , Pessoa de Meia-Idade , Imagem Multimodal , Pneumonia/complicações , Compostos Radiofarmacêuticos , Síndrome do Desconforto Respiratório/etiologia , Sepse/complicações , Tomografia Computadorizada por Raios X , Ferimentos e Lesões/complicações
8.
J Electrocardiol ; 49(3): 383-91, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27046100

RESUMO

We evaluate in this paper different strategies for the construction of a statistical shape model (SSM) of the left ventricle (LV) to be used for segmentation in cardiac magnetic resonance (CMR) images. From a large database of LV surfaces obtained throughout the cardiac cycle from 3D echocardiographic (3DE) LV images, different LV shape models were built by varying the considered phase in the cardiac cycle and the registration procedure employed for surface alignment. Principal component analysis was computed to describe the statistical variability of the SSMs, which were then deformed by applying an active shape model (ASM) approach to segment the LV endocardium in CMR images of 45 patients. Segmentation performance was evaluated by comparing LV volumes derived by ASM segmentation with different SSMs and those obtained by manual tracing, considered as a reference. A high correlation (r(2)>0.92) was found in all cases, with better results when using the SSM models comprising more than one frame of the cardiac cycle.


Assuntos
Ecocardiografia Tridimensional/métodos , Ecocardiografia/métodos , Endocárdio/diagnóstico por imagem , Imagem Cinética por Ressonância Magnética/métodos , Modelos Cardiovasculares , Disfunção Ventricular Esquerda/diagnóstico por imagem , Simulação por Computador , Endocárdio/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Modelos Anatômicos , Modelos Estatísticos , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Técnica de Subtração , Disfunção Ventricular Esquerda/patologia
9.
Crit Care ; 19: 19, 2015 Jan 22.
Artigo em Inglês | MEDLINE | ID: mdl-25774818

RESUMO

INTRODUCTION: Patients with acute respiratory failure requiring respiratory support with invasive mechanical ventilation while awaiting lung transplantation are at a high risk of death. Extracorporeal membrane oxygenation (ECMO) has been proposed as an alternative bridging strategy to mechanical ventilation. The aim of this study was to assess the current evidence regarding how the ECMO bridge influences patients' survival and length of hospital stay. METHODS: We performed a systematic review by searching PubMed, EMBASE and the bibliographies of retrieved articles. Three reviewers independently screened citation titles and abstracts and agreement was reached by consensus. We selected studies enrolling patients who received ECMO with the intention to bridge lung transplant. We included randomized controlled trials (RCTs), case-control studies and case series with ten or more patients. Outcomes of interest included survival and length of hospital stay. Quantitative data summaries were made when feasible. RESULTS: We identified 82 studies, of which 14 were included in the final analysis. All 14 were retrospective studies which enrolled 441 patients in total. Because of the broad heterogeneity among the studies we did not perform a meta-analysis. The mortality rate of patients on ECMO before lung transplant and the one-year survival ranged from 10% to 50% and 50% to 90%, respectively. The intensive care and hospital length of stay ranged between a median of 15 to 47 days and 22 to 47 days, respectively. There was a general paucity of high-quality data and significant heterogeneity among studies in the enrolled patients and technology used, which confounded analysis. CONCLUSIONS: In most of the studies, patients on ECMO while awaiting lung transplantation also received invasive mechanical ventilation. Therefore, whether ECMO as an alternative, rather than an adjunction, to invasive mechanical ventilation is a better bridging strategy to lung transplantation still remains an unresolved issue. ECMO support as a bridge for these patients could provide acceptable one-year survival. Future studies are needed to investigate ECMO as part of an algorithm of care for patients with end-stage lung disease.


Assuntos
Oxigenação por Membrana Extracorpórea/mortalidade , Oxigenação por Membrana Extracorpórea/métodos , Sistemas de Manutenção da Vida , Transplante de Pulmão/mortalidade , Oxigenação por Membrana Extracorpórea/tendências , Humanos , Tempo de Internação/tendências , Transplante de Pulmão/tendências , Estudos Retrospectivos , Taxa de Sobrevida/tendências , Resultado do Tratamento
10.
Europace ; 16 Suppl 4: iv96-iv101, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25362176

RESUMO

AIMS: To propose a nearly automated left ventricular (LV) three-dimensional (3D) surface segmentation procedure, based on active shape modelling (ASM) and built on a database of 3D echocardiographic (3DE) LV surfaces, for cardiac magnetic resonance (CMR) images, and to test its accuracy for LV volumes computation compared with 'gold standard' manual tracings and discs-summation method. METHODS AND RESULTS: The ASM was created based on segmented LV surfaces (4D LV analysis, Tomtec) from 3DE datasets of 205 patients. Then, it was applied to the cardiac magnetic resonance imaging short-axis (SAX) images stack of 12 consecutive patients. After proper realignment using two- and four-chambers CMR long-axis views both as reference and for initializing LV apex and base (six points in total), the ASM was iteratively and automatically updated to match the information of all the SAX planes contemporaneously, resulting in an endocardial LV 3D mesh from which volume was directly derived. The same CMR images were analysed by an experienced cardiologist to derive end-diastolic and end-systolic volumes. Linear correlation and Bland-Altman analyses were applied vs. the manual 'gold standard'. Active shape modelling results showed high correlations with manual values both for LV volumes (r(2) > 0.98) and ejection fraction (EF) (r(2) > 0.90), non-significant biases and narrow limits of agreement. CONCLUSION: The proposed method resulted in accurate detection of 3D LV endocardial surfaces, which lead to fast and reliable measurements of LV volumes and EF when compared with manual tracing of CMR SAX images. The segmented 3D mesh, including a realistic LV apex and base, could constitute a novel starting point for more realistic patient-specific finite element modelling.


Assuntos
Simulação por Computador , Cardiopatias/patologia , Ventrículos do Coração/patologia , Imageamento Tridimensional , Imageamento por Ressonância Magnética , Modelos Cardiovasculares , Algoritmos , Automação , Gráficos por Computador , Estudos de Viabilidade , Cardiopatias/fisiopatologia , Ventrículos do Coração/fisiopatologia , Humanos , Interpretação de Imagem Assistida por Computador , Projetos Piloto , Valor Preditivo dos Testes , Reprodutibilidade dos Testes , Estudos Retrospectivos , Função Ventricular Esquerda
11.
Environ Res ; 133: 220-31, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24968084

RESUMO

Soil quality is traditionally evaluated by chemical characterization to determine levels of pollutants. Biological tools are now employed for soil monitoring since they can take account of the global biological effects induced by all xenobiotics. A combined monitoring of soils based on chemical analyses, human-related in vitro models and ecotoxicological assay was applied in the Lomellina, a semirural area of northern Italy. Chemical characterization indicated overall good quality of the soils, with low levels of toxic and carcinogenic pollutants such as heavy metals, PAHs, PCDD/Fs and PCBs. HepG2 cells were used as a model for the human liver and BALB/c 3T3 cells to evaluate carcinogenic potential. Cells were treated with soil extractable organic matter (EOM) and the MTS assay, DNA release and morphological transformation were selected as endpoints for toxicity and carcinogenicity. Soil EOMs induced dose-dependent inhibition of cell growth at low doses and cytotoxicity only at doses of 500 and 1000 mg soil equivalents/ml. Potential issues for human health can be hypothesized after ingestion of soil samples from some sites. No statistically significant inductions of foci were recorded after exposure to EOMs, indicating that the levels of the soil-extracted organic pollutants were too low to induce carcinogenesis in our experimental conditions. An acute phytotoxicity test and studies on Caenorhabditis elegans were used as ecotoxicological assays for plants and small invertebrates. No significant alerts for ecotoxicity were found. In this proposed case study, HepG2 cells detected differences in the toxicity of soil EOMs, indicating that this cell line could be appropriate to assess the potential harm caused by the ingestion of contaminated soil. Additional information on the carcinogenic potential of mixtures was provided by the cell transformation assay, strengthening the combined approach.


Assuntos
Compostos Orgânicos/toxicidade , Poluentes do Solo/toxicidade , Testes de Toxicidade/métodos , Animais , Células 3T3 BALB , Caenorhabditis elegans , Linhagem Celular Tumoral , Cucumis sativus , Comportamento Alimentar/efeitos dos fármacos , Células Hep G2 , Humanos , Itália , Lepidium sativum , Neoplasias Hepáticas/induzido quimicamente , Camundongos , Compostos Orgânicos/normas , Poluentes do Solo/normas , Sorghum , Testes de Toxicidade/normas
12.
Cardiovasc Revasc Med ; 55: 83-87, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37385893

RESUMO

Coronary arteries are uniformly exposed to traditional cardiovascular risk factors. However, atherosclerotic lesions occur in preferential regions of the coronary tree, especially in areas with disturbed local blood flow, such as coronary bifurcations. Over the latest years, secondary flows have been linked to the inception and progression of atherosclerosis. Most of these novel findings have been obtained in the field of computational fluid dynamic (CFD) analysis and biomechanics but remain poorly understood by cardiovascular interventionalists, despite the important impact that they may have in clinical practice. We aimed to summarize the current available data regarding the pathophysiological role of secondary flows in coronary artery bifurcation, providing an interpretation of these findings from an interventional perspective.


Assuntos
Aterosclerose , Doença da Artéria Coronariana , Humanos , Vasos Coronários/diagnóstico por imagem , Vasos Coronários/patologia , Hemodinâmica , Aterosclerose/patologia , Stents , Fenômenos Biomecânicos , Modelos Cardiovasculares , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/terapia , Doença da Artéria Coronariana/patologia
13.
Comput Biol Med ; 143: 105248, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35124437

RESUMO

BACKGROUND: Superficial femoral arteries (SFAs) treated with self-expanding stents are widely affected by in-stent restenosis (ISR), especially in case of long lesions and multiple overlapping devices. The altered hemodynamics provoked by the stent is considered as a promoting factor of ISR. In this context, this work aims to analyze the impact of stent design and stent overlapping on patient-specific SFA hemodynamics. METHODS: Through a morphing technique, single or multiple stents were virtually implanted within two patient-specific, post-operative SFA models reconstructed from computed tomography. The stented domains were used to perform computational fluid dynamics simulations, quantifying wall shear stress (WSS) based descriptors including time-averaged WSS (TAWSS), oscillatory shear index (OSI), transverse WSS (transWSS), and WSS ratio (WSSRATIO). Four stent designs (three laser-cut - EverFlex, Zilver and S.M.A.R.T. - and one prototype braided stent), and three typical clinical scenarios accounting for different order of stent implantation and overlapping length were compared. RESULTS: The main hemodynamic differences were found between the two types of stent designs (i.e. laser-cut vs. braided stents). The braided stent presented lower median transWSS and higher median WSSRATIO than the laser-cut stents (p < 0.0001). The laser-cut stents presented comparable WSS-based descriptor values, except for the Zilver, exhibiting a median TAWSS ∼30% higher than the other stents. Stent overlapping provoked an abrupt alteration of the WSS-based descriptors. The overlapping length, rather than the order of stent implantation, highly and negatively impacted the hemodynamics. CONCLUSION: The proposed computational workflow compared different SFA stent designs and stent overlapping configurations, highlighting those providing the most favorable hemodynamic conditions.

14.
Nutrients ; 14(9)2022 Apr 26.
Artigo em Inglês | MEDLINE | ID: mdl-35565769

RESUMO

This study aimed to determine if dietary modifications using a nutritional regimen could prevent or reduce the incidence of cancer therapy-induced diarrhea in patients with metastatic colorectal cancer and to evaluate the relationship of Vitamin D blood levels with diarrhea severity. Patients with metastatic colorectal cancer were enrolled. A Mediterranean diet, containing some special limitations aiming to reduce the risk of diarrhea, was administered before and during the entire chemotherapy program. Enrolled patients numbering 60/137 (44%) had diarrhea during chemotherapy. Adherence to the diet was high in 36 (26.3%) patients, medium in 94 (68.6%), and low in 7 (5.1%). Mean adherence to the diet was significantly lower in patients who experienced diarrhea with maximum grade 2−3 compared to those who had no diarrhea or grade 1 diarrhea (score = 5.4 ± 1.9 vs. 7.1 ± 1.5, p < 0.001). Patients with higher adherence to the diet had a lower risk of grade 2−3 diarrhea (odds ratio: 0.5 (95% CI: 0.3−0.7, p < 0.001)). In addition, patients who completed a higher number of chemotherapy cycles had an increased risk of grade 2−3 diarrhea (odds ratio: 1.2 (95% CI: 1.0−1.5, p = 0.02)). Of note, a lower level of Vitamin D correlated with an increased risk of G2-G3 diarrhea (p = 0.03). A diet based on vegetables with a controlled fiber content, Mediterranean Modified Healthy Diet (MMHD), is useful to control the incidence of cancer therapy-induced diarrhea.


Assuntos
Antineoplásicos , Neoplasias Colorretais , Dieta Mediterrânea , Antineoplásicos/efeitos adversos , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/patologia , Diarreia/induzido quimicamente , Diarreia/prevenção & controle , Humanos , Vitamina D/uso terapêutico
15.
Pharmaceutics ; 14(6)2022 Jun 10.
Artigo em Inglês | MEDLINE | ID: mdl-35745803

RESUMO

Osteoarthritis (OA) is a highly prevalent joint disease still lacking effective treatments. Its multifactorial etiology hampers the development of relevant preclinical models to evaluate innovative therapeutic solutions. In the last decade, the potential of Mesenchymal Stem Cell (MSC) secretome, or conditioned medium (CM), has emerged as an alternative to cell therapy. Here, we investigated the effects of the CM from adipose MSCs (ASCs), accounting for both soluble factors and extracellular vesicles, on human osteochondral explants. Biopsies, isolated from total knee replacement surgery, were cultured without additional treatment or with the CM from 106 ASCs, both in the absence and in the presence of 10 ng/mL TNFα. Tissue viability and several OA-related hallmarks were monitored at 1, 3 and 6 days. Specimen viability was maintained over culture. After 3 days, TNFα induced the enhancement of matrix metalloproteinase activity and glycosaminoglycan release, both efficiently counteracted by CM. The screening of inflammatory lipids, proteases and cytokines outlined interesting modulations, driving the attention to new players in the OA process. Here, we confirmed the promising beneficial action of ASC secretome in the OA context and profiled several bioactive factors involved in its progression, in the perspective of accelerating an answer to its unmet clinical needs.

17.
G Ital Med Lav Ergon ; 33(3 Suppl): 470-4, 2011.
Artigo em Italiano | MEDLINE | ID: mdl-23393901

RESUMO

Between the end of the fifties and the second half of the sixties the Italian car industry was one of the few in Europe to introduce technical changes for car safety. Some Italian popular magazines took part in this plan not only by an information and prevention campaign, but also by promoting experimental safety car projects. Among them Quattroruote, rivista mensile per gli automobilisti di oggi e di domani stands out.


Assuntos
Acidentes de Trânsito/história , Acidentes de Trânsito/prevenção & controle , Automóveis/história , Publicações Periódicas como Assunto/história , Segurança/história , História do Século XX , Humanos , Itália
18.
Anal Methods ; 13(4): 526-535, 2021 01 28.
Artigo em Inglês | MEDLINE | ID: mdl-33447838

RESUMO

Sewage sludge is a by-product of wastewater treatment processes, and may be employed in agriculture as a fertilizer or in forestry for land reclamation. It is an important source of nutrients but its reuse can arouse concern on account of the wide range of contaminants that are retained and may persist during treatments. Information on the emerging contaminants (ECs) in sewage sludge in Italy is limited. The present study developed and applied a reliable analytical method for the analysis of 44 ECs in sewage sludge. ECs were extracted by accelerated solvent extraction followed by a clean-up step on solid-phase cartridges. High performance liquid chromatography coupled to mass spectrometry was used for analysis. The ECs, selected on the basis of their use and documented presence in the environment, were 42 pharmaceuticals belonging to 12 therapeutic categories and 2 perfluorinated substances. The method performance was good, with recoveries higher than 70%, good repeatability (<20%) and sensitivity in the low ng g-1 range, allowing measurement of the analytes selected. The method was applied for analysis of sludge from 12 wastewater treatment plants in Italy. The most abundant compounds were antibiotics, anti-inflammatories and antihypertensives and ranged up to 5 µg g-1 (ciprofloxacin). Seasonal differences were found for some antibiotics and anti-inflammatory drugs as well as some differences - in terms of concentration - with other European countries. This is the first Italian study to investigate the presence of a large number of ECs in sewage sludge and the results may be useful to drive future regulatory actions.


Assuntos
Preparações Farmacêuticas , Esgotos , Cromatografia Líquida , Europa (Continente) , Itália , Extração em Fase Sólida , Espectrometria de Massas em Tandem
19.
Chem Phys Lipids ; 239: 105113, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-34216586

RESUMO

1,8-cineole is a monoterpene commonly used by the food, cosmetic, and pharmaceutical industries owing to its flavor and fragrances properties. In addition, this bioactive monoterpene has demonstrated bactericidal and fungicidal activities. However, such activities are limited due to its low aqueous solubility and stability. This study aimed to develop nanoemulsion containing cineole and assess its stability and antibacterial activity in this context. The spontaneous emulsification method was used to prepare nanoemulsion (NE) formulations (F1, F2, F3, F4, and F5). Following the development of NE formulations, we chose the F1 formulation that presented an average droplet size (in diameter) of about 100 nm with narrow size distribution (PdI <0.2) and negative zeta potential (∼ - 35 mV). According to the analytical centrifugation method with photometric detection, F1 and F5 formulations were considered the most stable NE with lower droplet migration velocities. In addition, F1 formulation showed high incorporation efficiency (> 80 %) and TEM analyses demonstrated nanosized oil droplets with irregular spherical shapes and without any aggregation tendency. Antibacterial activity assessment showed that F1 NE was able to enhance the cineole action against Staphylococcus aureus, Enterococcus faecalis, and Streptococcus pyogenes. Therefore, using a simple and reproducible method of low energy emulsification we designed a stable nanoemulsion containing 1,8-cineole with improved antibacterial activity against Gram-positive strains.


Assuntos
Antibacterianos/química , Emulsões/química , Eucaliptol/química , Nanoestruturas/química , Antibacterianos/farmacologia , Estabilidade de Medicamentos , Enterococcus faecalis/efeitos dos fármacos , Eucaliptol/farmacologia , Testes de Sensibilidade Microbiana , Tamanho da Partícula , Staphylococcus aureus/efeitos dos fármacos
20.
Ultrasound J ; 12(1): 27, 2020 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-32409952

RESUMO

BACKGROUND: Lung ultrasound is a bedside non-irradiating tool for assessment and monitoring of lung diseases. A lung ultrasound score based on visualized artefacts allows reliable quantification of lung aeration, and is useful to monitor mechanical ventilation setting, fluid resuscitation and antibiotic response in critical care. In the context of interstitial lung diseases associated to connective tissue disorders, lung ultrasound has been integrated to computed tomography for diagnosis and follow-up monitoring of chronic lung disease progression. CASE PRESENTATION: This case describes a severe acute exacerbation of interstitial lung disease associated to dermatomyositis-polymyositis requiring prolonged extra-corporeal life support. Lung ultrasound score was performed daily and allowed monitoring and guiding both the need of advanced imaging as computed tomography and immunosuppressive therapy. CONCLUSIONS: This case suggests lung ultrasound may be a useful monitoring tool for the response to immunosuppressive therapy in acute severe rheumatic interstitial lung disease, where chest X-ray is poorly informative, and transportation is at high risk.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA