Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 26
Filtrar
Mais filtros

Base de dados
País/Região como assunto
Tipo de documento
País de afiliação
Intervalo de ano de publicação
1.
J Cutan Med Surg ; 27(2): 126-132, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36995351

RESUMO

BACKGROUND: IL-23 inhibitors are the latest class of biologic drugs approved for moderate-to-severe psoriasis. OBJECTIVES: to investigate real-life safety and efficacy of tildrakizumab. METHODS: demographic data, medical history, psoriasis disease history, PASI, DLQI, BSA, NAPSI were recorded at weeks 0, 12, 24, 36. RESULTS: PASI, BSA, DLQI and NAPSI all decreased rapidly during the 36 week follow-up period. PASI score reduced from 12.28 to 4.65 by week 12, followed by a further decrease to 1.18 at week 36 Multiple logistic regression showed that smoking, BMI ≥30, ≥3 comorbidities, previous systemic traditional or biologic drugs, psoriatic arthritis nor difficult-to-treat areas influenced the reduction of PASI and NAPSI scores during treatment with tildrakizumab (P > .05). CONCLUSIONS: we assessed a good performance of tildrakizumab in patients with multiple comorbidities, multi-failure, elderly patients, and in subjects with psoriatic arthritis.


Assuntos
Artrite Psoriásica , Psoríase , Humanos , Idoso , Artrite Psoriásica/tratamento farmacológico , Resultado do Tratamento , Psoríase/tratamento farmacológico , Itália/epidemiologia , Índice de Gravidade de Doença
2.
Dermatol Ther ; 34(4): e15006, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-34043265

RESUMO

Basal cell carcinoma (BCC) can sometimes affect the eyelids and in particular the eyelid margin, where it can often be misdiagnosed, mimicking other benign, more common diseases. Dermoscopy may provide additional diagnostic criteria for an earlier diagnosis of eyelid margin BCC, although the dermoscopic features of BCC affecting this anatomical site have seldom been reported. We highlight the peculiar presence of linear vessels perpendicular to the eyelid margin in BCCs of the eyelid margin. Our article represents the first report of these dermoscopic findings in a series of BCCs of the eyelid margin.


Assuntos
Carcinoma Basocelular , Neoplasias Cutâneas , Carcinoma Basocelular/diagnóstico por imagem , Dermoscopia , Pálpebras/diagnóstico por imagem , Humanos , Margens de Excisão , Neoplasias Cutâneas/diagnóstico por imagem
5.
Nutrients ; 16(1)2023 Dec 27.
Artigo em Inglês | MEDLINE | ID: mdl-38201930

RESUMO

BACKGROUND: Nicotinamide is the active form of vitamin B3 (niacin) obtained through endogenous synthesis, mainly through tryptophan metabolism and dietary supplements, fish, meats, grains, and dairy products. It participates in cellular energy metabolism and modulates multiple cellular survival and death pathways. Nicotinamide has been widely studied as a safe chemopreventive agent that reduces actinic keratosis (AKs) and non-melanoma skin cancers (NMSC). METHODS: We used the Medline, EMBASE, PubMed, and Cochrane databases to search the concepts "nicotinamide", "chemoprevention", and "skin cancer" up to August 2023. Three independent authors screened titles and abstracts for intervention and study design before searching full texts for eligibility criteria. The primary outcome was the impact of oral nicotinamide on the incidence of NMSC in high-risk patients. We also conducted a systematic search to identify relevant epidemiological studies published evaluating dietary niacin intake and the risk of NMSC. RESULTS: Two hundred and twenty-five studies were reviewed, and four met the inclusion criteria. There was no association between NAM consumption and risk for squamous cell carcinoma (SCC) (rate ratio (RR) 0.81, 95% CI 0.48-1.37; I2 = 0%), basal cell carcinoma (BCC) (RR 0.88, 95% CI 0.50-1.55; I2 = 63%), and NMSC (RR 0.82, 95% CI 0.61-1.12; I2 = 63%). Adverse events were rare and acceptable, allowing optimal compliance of patients to the treatment. We found only one article evaluating the association between niacin dietary intake and NMSC risk, supporting a potential beneficial role of niacin intake concerning SCC but not BCC or melanoma. CONCLUSIONS: The present meta-analysis shows, by pooling immunocompetent and immunosuppressed patients, that there is insufficient evidence that oral nicotinamide therapy significantly reduces the number of keratinocyte cancers.


Assuntos
Carcinoma Basocelular , Carcinoma de Células Escamosas , Niacina , Neoplasias Cutâneas , Animais , Humanos , Niacinamida , Quimioprevenção , Neoplasias Cutâneas/epidemiologia , Neoplasias Cutâneas/prevenção & controle
6.
Bioengineering (Basel) ; 9(7)2022 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-35877333

RESUMO

The purpose of the present study was to evaluate the mechanical resistance of elastodontic devices (ED): their maximum compression loads and plastic deformation under loading (percentage). An Instron universal machine (Model 3365, Instron, Industrial Product Group, Grove City, PA, USA) was employed with a 100 N load cell and with Bluehill software for loading analyses. Each device was submitted to a five-cycles test. The following ED were evaluated: A.M.C.O.P. (Micerium, Genova, Italy) in red color, in orange color, and in blue color; HealthyStart (Ortho-Tain, Winnetka, IL, USA), and T4K™ phase 1 (Myofunctional Research Co., Helensvale, Australia). During the five-cycles test, the Ortho-Tain device delivered the greatest compression load (7.56 N), with the lowest percentage of deformation (0.95%). For all devices, a slight plastic deformation of the material was registered, ranging from 0.95% to 1.75%. For the T4K device it was not possible to complete the five-cycles test. For all the analyzed ED, a slight plastic deformation under loading was registered, that in all cases can be considered clinically acceptable. Further studies are needed to test the appliances after clinical usage.

7.
Cancers (Basel) ; 14(15)2022 Jul 31.
Artigo em Inglês | MEDLINE | ID: mdl-35954393

RESUMO

Triple-negative breast cancer-defined by the absence of oestrogen/progesterone receptors and human epidermal growth factor receptor 2 expression-is a complex and heterogeneous type of tumour characterised by poor prognosis, aggressive behaviour and lack of effective therapeutic strategies. The identification of new biomarkers and molecular signatures is leading to development of new therapeutic strategies including immunotherapy, targeted therapy and antibody-drug conjugates (ADCs). Against a background where chemotherapy has always been considered the standard of care, evolution towards a precision medicine approach could improve TNBC clinical practice in a complex scenario, with many therapeutic options and new drugs. The aim of this review was to focus on emerging therapeutic targets and their related specific therapy, discussing available and emerging drugs, underlining differences in approval by American and European regulatory authorities and showing the future perspective in the large number of ongoing clinical trials.

8.
J Clin Med ; 11(16)2022 Aug 12.
Artigo em Inglês | MEDLINE | ID: mdl-36012949

RESUMO

Metronomic chemotherapy (mCHT), defined as continuous administration of low-dose chemotherapeutic agents with no or short regular treatment-free intervals, was first introduced to the clinic in international guidelines in 2017, and, since then, has become one of the available strategies for the treatment of advanced breast cancer (ABC). Despite recent successes, many unsolved practical and theoretical issues remain to be addressed. The present review aims to identify the "lights and shadows" of mCHT in preclinical and clinical settings. In the preclinical setting, several findings indicate that one of the most noticeable effects of mCHT is on the tumor microenvironment, which, over the last twenty years, has been demonstrated to be pivotal in supporting tumor cell survival and proliferation. On the other hand, the direct effects on tumor cells have been less well-defined. In addition, critical items to be addressed are the lack of definition of an optimal biological dose (OBD), the method of administration of metronomic schedules, and the recognition and validation of predictive biomarkers. In the clinical context-where mCHT has mainly been used in a metastatic setting-low toxicity is the most well-recognised light of mCHT, whereas the type of study design, the absence of randomised trials and uncertainty in terms of doses and drugs remain among the shadows. In conclusion, growing evidence indicates that mCHT is a suitable treatment option for selected metastatic breast cancer (MBC) patients. Moreover, given its multimodal mechanisms of action, its addition to immunological and targeted therapies might represent a promising new approach to the treatment of MBC. More preclinical data are needed in this regard, which can only be obtained through support for translational research as the key link between basic science and patient care.

9.
Ital J Dermatol Venerol ; 157(1): 55-61, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33913666

RESUMO

BACKGROUND: Mortality of bullous pemphigoid (BP) is a variable parameter, depending especially on the area where the study was conducted. The 1-year mortality rate and the identification of clinic-therapeutic factors with potential prognostic value in patients with BP were evaluated in a cohort from a single referral center. METHODS: We have reviewed medical records of patients with BP diagnosed at the Sant' Orsola-Malpighi Hospital in Bologna (Italy) between 2005 and 2019. Data collected included sex, age at diagnosis, laboratory findings, severity of disease, dosage of systemic treatments, age at death and comorbidities. Only patients who had at least 1 year of follow-up were included. RESULTS: Eighty-five patients were included; the mortality rate was 7.1%. The mortality rate of patients treated with a moderate dosage of corticosteroids was no higher than that of patients treated with a low dosage. The log-rank test showed a statistically significant correlation between mortality and patients aged ≥85, BP230 positive, and CCIS≥4. CONCLUSIONS: Compared with similar studies, our results show a lower 1-year mortality rate. Advanced age at diagnosis and CCIS were confirmed as major independent factors associated with poor prognosis in BP. Administration of moderate dosage of oral corticosteroids seems to have an overall positive benefit-risk ratio, providing a good control of the disease and minimizing the risk of hospitalization, possible related complications and the mortality rate.


Assuntos
Penfigoide Bolhoso , Corticosteroides/uso terapêutico , Idoso , Estudos de Coortes , Humanos , Penfigoide Bolhoso/tratamento farmacológico , Prognóstico , Estudos Retrospectivos
10.
Clin Chim Acta ; 537: 140-145, 2022 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-36341812

RESUMO

BACKGROUND: Surfactant protein-D (SP-D) is a lung-resident protein that has emerged as a potential biomarker for COVID-19. Previous investigations on acute respiratory distress syndrome patients demonstrated a significant increment of SP-D serum levels in pathological conditions. Since SP-D is not physiologically permeable to alveoli-capillary membrane and poorly expressed by other tissues, this enhancement is likely due to an impairment of the pulmonary barrier caused by prolonged inflammation. METHODS: A retrospective study on a relatively large cohort of patients of Hospital Pio XI of Desio was conducted to assess differences of the hematic SP-D concentrations among COVID-19 patients and healthy donors and if SP-D levels resulted a risk factor for disease severity and mortality. RESULTS: The first analysis, using an ANOVA-model, showed a significant difference in the mean of log SP-D levels between COVID-19 patients and healthy donors. Significant variations were also found between dead vs survived patients. Results confirm that SP-D concentrations were significantly higher for both hospitalized COVID-19 and dead patients, with threshold values of 150 and 250 ng/mL, respectively. Further analysis conducted with Logistic Mixed models, highlighted that higher SP-D levels at admission and increasing differences among follow-up and admission values resulted the strongest significant risk factors of mortality (model predictive accuracy, AUC = 0.844). CONCLUSIONS: The results indicate that SP-D can be a predictive marker of COVID-19 disease and its outcome. Considering its prognostic value in terms of mortality, the early detection of SP-D levels and its follow-up in hospitalized patients should be considered to direct the therapeutic intervention.


Assuntos
COVID-19 , Proteína D Associada a Surfactante Pulmonar , Humanos , COVID-19/diagnóstico , Estudos Retrospectivos , SARS-CoV-2 , Biomarcadores
11.
Life (Basel) ; 12(3)2022 Mar 05.
Artigo em Inglês | MEDLINE | ID: mdl-35330128

RESUMO

CDK4/6 inhibitors in association with endocrine therapy represent the best therapeutic choice for either endocrine-sensitive or resistant hormone-receptor-positive advanced breast cancer patients. On the contrary, the optimal therapeutic strategy after the failure of CDK4/6 inhibitors-based treatment still remains an open question worldwide. In this review, we analyze the most studied mechanisms of resistance to CDK4/6 inhibitors treatment, as well as the most significant results of retrospective and prospective trials in the setting of progression after CDK4/6 inhibitors, to provide the reader a comprehensive overview from both a preclinical and especially a clinical perspective. In our opinion, an approach based on a deeper knowledge of resistance mechanisms to CDK4/6 inhibitors, but also on a careful analysis of what is done in clinical practice, can lead to a better definition of prospective randomized trials, to implement a personalized sequence approach, based on molecular analyses.

12.
Int J Cardiol ; 327: 40-44, 2021 03 15.
Artigo em Inglês | MEDLINE | ID: mdl-33186664

RESUMO

BACKGROUND: Contrast fractional flow reserve (cFFR) is a relatively new tool for the assessment of intermediate coronary artery stenosis and represents a reliable surrogate of FFR with the advantage of potentially simplifying functional evaluation. We aimed to compare the incidence of major adverse cardiac events (MACE) in patients undergoing functional evaluation with both FFR and cFFR based on the results of the two indexes. METHOD AND RESULT: We retrospectively analyzed outcomes in 488 patients who underwent functional evaluation with FFR and cFFR. Patients were divided into four groups using the cutoff values of 0.80 for FFR and 0.85 for cFFR: -/- (n = 298), +/+ (n = 134), -/+(n = 31) and +/- (n = 25). All patients were treated according to FFR value. MACE rate was assessed in each group, including death, myocardial infarction and urgent target vessel revascularization (TVR). Mean follow-up time was 22 ± 15 months. Incidence of MACE at follow-up was 8.3% in FFR-/cFFR-, 14.0% in FFR+/cFFR+, 16.0% in FFR-/cFFR+ and 8.0% in FFR+/cFFR- without a significant difference amongst the 4 groups (p = 0.2). Nevertheless, a significant difference in the rate of TVR comparing FFR-/cFFR- (n = 17) and FFR-/cFFR+ (n = 5) was found at 24 months (5.7% vs 16.0%; p = 0.027). CONCLUSION: cFFR is accurate in predicting FFR and consequently reliable in guiding coronary revascularization. In the rare case of discordance, while FFR+/cFFR- patients show a prognosis similar to FFR-/cFFR- patients, FFR-/cFFR+ patients show a prognosis similar to FFR+/cFFR+ patients.


Assuntos
Doença da Artéria Coronariana , Estenose Coronária , Reserva Fracionada de Fluxo Miocárdico , Infarto do Miocárdio , Angiografia Coronária , Doença da Artéria Coronariana/diagnóstico , Estenose Coronária/diagnóstico , Humanos , Prognóstico , Estudos Retrospectivos , Resultado do Tratamento
13.
Healthcare (Basel) ; 8(4)2020 Dec 10.
Artigo em Inglês | MEDLINE | ID: mdl-33321783

RESUMO

(1) Background: The aim of the work is to identify some imaging parameters in osteogenesis imperfecta to assist the dentist in the diagnosis, planning, and orthodontic treatment of Osteogenesis Imperfecta (OI) using 3D cone beam Computed Tomography (CBCT) and the Double Energy X-ray Absorptiometry (DEXA) technique. (2) Methods: 14 patients (9 males and 5 females; aged mean ± SD 15 ± 1.5) with a clinical-radiological diagnosis of OI were analyzed and divided into mild and moderate to severe forms. The patients' samples were compared with a control group of 14 patients (8 males and 6 females; aged mean ± SD 15 ± 1.7), free from osteoporotic pathologies. (3) Results: The statistical analysis allowed us to collect four datasets: in the first dataset (C1 sick population vs. C1 healthy population), the t-test showed a p-value < 0.0001; in the second dataset (C2 sick population vs. C2 healthy population), the t-test showed a p-value < 0.0001; in the third dataset (parameter X of the sick population vs. parameter X of the healthy population), the t-test showed a p-value < 0.0001; in the fourth dataset the bone mineralometry (BMD) value detected by the DEXA technique compared to the C2 value of the OI affected population only) the Welch-Satterthwaite test showed a p-value < 0.0001. (4) Conclusions: The research has produced specific imaging parameters that assist the dentist in making diagnostic decisions in OI patients. This study shows that patients with OI have a characteristic chin-bearing symphysis, thinned, and narrowed towards the center, configuring it with a constant "hourglass" appearance, not reported so far in the literature by any author.

14.
Int J Cardiol ; 277: 42-46, 2019 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-30107947

RESUMO

BACKGROUND: Fractional Flow Reserve (FFR) in Stable Ischemic Heart Disease (SIHD) is universally accepted, while in Acute Coronary Syndromes (ACS) is less established. Aims of this retrospective study were: to compare in patients undergoing FFR assessment the prognostic impact of ACS vs SIHD, to evaluate the clinical relevance of the modality of utilization and timing of FFR assessment and to assess the different outcomes associated with an FFR> or ≤0.80. METHODS: Major cardiac adverse events were assessed at a follow up of 16.4 ±â€¯10.5 months in 543 patients with SIHD and 231 with ACS needing functional evaluation. FFR was used for lesions of ambiguous significance in the absence of a clear culprit vessel (first intention, FI) and for incidental lesions in the presence of a clear culprit vessel (second intention, SI). The decision to perform FFR and the identification of the stenosis needing functional assessment were left to the operator's discretion. Revascularization was performed when FFR was ≤0.80. RESULTS: SIHD and ACS patients were not significantly different for principal clinical characteristics. ACS patients had significantly more events than SIHD, due to an excess of death and myocardial infarction. This was confirmed when FFR was used as FI, in particular if FFR was >0.80. On the contrary, when FFR was used as SI, event rates were similar between ACS and SIHD patients, regardless of FFR value. CONCLUSIONS: Our study shows that using FFR the risk of recurrent events in ACS is significantly higher than in SIHD. This different outcome is confined to those patients in whom FFR is utilized for lesions of ambiguous significance in the absence of a clear culprit vessel.


Assuntos
Síndrome Coronariana Aguda/diagnóstico por imagem , Síndrome Coronariana Aguda/fisiopatologia , Reserva Fracionada de Fluxo Miocárdico/fisiologia , Revascularização Miocárdica/métodos , Síndrome Coronariana Aguda/cirurgia , Idoso , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Revascularização Miocárdica/tendências , Estudos Retrospectivos
15.
Int J Cardiol ; 268: 45-50, 2018 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-30041802

RESUMO

AIM: To review the current approaches to simplify functional assessment of coronary stenosis with particular regard for contrast Fractional Flow Reserve (cFFR). METHODS AND RESULTS: Maximal hyperaemia to assess FFR is perceived as time-consuming, costly, unpleasant for the patient and associated with side effects. Resting indexes, like Pd/Pa and iFR, have been proposed to circumvent the use of vasodilators as well as an approach based on the administration of contrast medium to induce coronary vasodilation, the cFFR. Contrast FFR can be obtained quickly, at very low cost in the absence of substantial side effects. Among these alternative indexes, cFFR shows the best correlation with FFR, reduces the use of adenosine even more than a hybrid resting approach but has not yet been tested in a randomized, controlled trial with clinical end-points. CONCLUSION: cFFR represents a cheap, safe and effective alternative to FFR, able to facilitate the dissemination of a functional approach to myocardial revascularization.


Assuntos
Meios de Contraste/administração & dosagem , Estenose Coronária/fisiopatologia , Reserva Fracionada de Fluxo Miocárdico/fisiologia , Hiperemia/fisiopatologia , Revascularização Miocárdica/métodos , Vasodilatadores/administração & dosagem , Estenose Coronária/diagnóstico , Reserva Fracionada de Fluxo Miocárdico/efeitos dos fármacos , Humanos , Hiperemia/diagnóstico , Revascularização Miocárdica/efeitos adversos
17.
PLoS One ; 13(5): e0197833, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29791495

RESUMO

Contrast-induced acute kidney injury (CI-AKI) is a serious complication during percutaneous coronary interventions (PCI). Currently, the diagnosis of CI-AKI relies on serum creatinine (SCr) that is however affected by several limitations potentially leading to delayed or missed diagnoses. In this study we examined the diagnostic accuracy of a "bedside" measurement of plasma Neutrophil Gelatinase-Associated Lipocalin (NGAL) in the early detection of CI-AKI in 97 patients undergoing elective PCI. The overall incidence of CI-AKI was 3%. A significant positive correlation was observed between 6-hours NGAL and post-PCI SCr (r = 0.339, p = 0.004) and a significant negative correlation between 6-hours NGAL and post-PCI CrCl (r = -0.303, p = 0.010). In patients with post-PCI SCr increase > 0.24 mg/dl (median SCr absolute increase), delta NGAL 0-6 hours and 6-hours NGAL values were higher compared with patients with SCr elevation below the defined threshold (p = 0.049 and p = 0.056). The ROC analysis showed that a 6 hours NGAL value > 96 ng/ml significantly predicted an absolute SCr increase > 0.24 mg/dl after contrast exposure with sensitivity of 53% and specificity of 74% (AUC 0.819, 95% CI: 0.656 to 0.983, p = 0.005). The use of bedside NGAL assessment may significantly hasten diagnosis and treatment of CI-AKI, with remarkable clinical prognostic consequences.


Assuntos
Injúria Renal Aguda/induzido quimicamente , Injúria Renal Aguda/metabolismo , Meios de Contraste/efeitos adversos , Procedimentos Cirúrgicos Eletivos , Lipocalina-2/metabolismo , Intervenção Coronária Percutânea , Injúria Renal Aguda/diagnóstico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA