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1.
Int J Mol Sci ; 23(13)2022 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-35806325

RESUMO

The severe prognosis linked with a lung cancer diagnosis has changed with the discovery of oncogenic molecularly driven subgroups and the use of tailored treatment. ALK-translocated advanced lung cancer is the most interesting model, having achieved the longest overall survival. Here, we report the most important paradigmatic shifts in the prognosis and treatment for this subgroup population occurred among lung cancer.


Assuntos
Carcinoma Pulmonar de Células não Pequenas , Neoplasias Pulmonares , Carcinoma Pulmonar de Células não Pequenas/diagnóstico , Carcinoma Pulmonar de Células não Pequenas/genética , Humanos , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/genética , Proteínas de Fusão Oncogênica/genética , Receptores Proteína Tirosina Quinases/genética
3.
Eur J Cancer Care (Engl) ; 28(3): e13007, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30740807

RESUMO

INTRODUCTION: The well-being and quality of life (QoL) of long-term cancer survivors may be affected, both positively and negatively, by psychosocial factors related to the experience of being a cancer patient. We investigated whether, in long-term cancer survivors, the psychosocial impacts of cancer associate with socio-demographic-clinical variables; whether, within the positive and negative dimensions taken separately, some impacts are more intense than others; and whether these impacts explain QoL. METHODS: Italian long-term cancer survivors (n = 500) completed the Impact of Cancer (IOC-V2) and Short Form 36 Health Survey (SF-36) questionnaires. RESULTS: The IOC-V2 negative impact score associated with gender, education, occupational status and health issues, whereas no association was found between the positive impact score and socio-demographic-clinical variables. Of the positive impacts, Altruism/Empathy was the highest (p < 0.001); Positive self-evaluation was higher than Health awareness (p = 0.001); and Meaning of cancer was the lowest (p < 0.001). Among the negative impacts, Worry was the highest (p < 0.001), whereas Body changes concerns was higher than both Appearance concerns (p < 0.001) and Life Interferences (p < 0.001). The assessed impacts explained more than 25% of the variance of both physical and mental functioning scores. CONCLUSIONS: The provided data document psychosocial factors affecting QoL in Italian long-term cancer survivors.


Assuntos
Sobreviventes de Câncer/psicologia , Qualidade de Vida/psicologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Altruísmo , Imagem Corporal , Efeitos Psicossociais da Doença , Escolaridade , Empatia , Emprego , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Desempenho Físico Funcional , Autoavaliação (Psicologia) , Fatores Sexuais
6.
Support Care Cancer ; 26(2): 651-656, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-28918552

RESUMO

PURPOSE: Understanding the quality of life (QoL) of cancer survivors is relevant to both clinical practice and health care policy. The current study compared the QoL profile in this specific population with that of a normative sample for the general population, as well as with those of both healthy and oncological patients normative sub-samples. In addition, associations between the obtained QoL profile and the main socio-demographic and clinical characteristics of the sample were examined. METHODS: Three hundred and ninety-two adult long-term cancer survivors (i.e., people 5 + years from their cancer diagnosis who were free from it and its treatments) were enrolled during follow-up visits and compiled the Short Form 36 Health Survey. RESULTS: In comparison with the normative data for the adult general population, the present sample showed lower scores in Physical functioning, Role-physical limitation, and Role-emotional limitations (all differences were both statistically and clinically significant); the difference in Vitality was only statistically significant. In all eight SF-36 scales, scores of the present sample were clinically and statistically lower than those of the normative healthy subsample, whereas they were statistically and clinically higher than those of normative subsample which had experienced cancer, except for Role-physical limitation. The QoL profile was associated with gender (p = 0.002), age (p = 0.001), education (p < 0.001), occupational status (p < 0.001), and the presence of other health issues (p < 0.001). CONCLUSION: These data support the utility of rehabilitative programs which integrate both healthcare and social interventions. In addition, they encourage the monitoring of the health status of this specific population, within a broad frame which simultaneously takes into consideration health and QoL.


Assuntos
Sobreviventes de Câncer/psicologia , Oncologia/métodos , Qualidade de Vida/psicologia , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
7.
Hematol Oncol ; 35(4): 472-479, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27781290

RESUMO

Low-dose radiotherapy (LDRT) given in 2 × 2 Gy is a highly effective and safe treatment for palliation of indolent lymphomas. Otherwise, very little regarding the use of LDRT for diffuse large B-cell lymphoma (DLBCL) has been investigated. We designed a phase 2 trial of LDRT in patients with DLBCL with indication for palliative radiation. Low-dose radiotherapy was administered on symptomatic areas only. Clinical response was assessed 21 days after LDRT and defined as reduction >50% of maximum diameter of the radiated lesions. Quality of life was scored by the European Organisation for Research and Treatment of Cancer QLQ-C30 questionnaire. Tumor subtype (germinal center B-cell type versus activated B-cell type) and the presence of TP53 mutations in pathologic specimens of the target lesion were also evaluated. Twenty-three of twenty-five radiated patients were evaluable for response, and 2 died of disease before the visit at 21 days. The overall response rate was 70% (16 of 23 patients), with 7 complete responses and 9 partial responses (mean duration of response, 6 months; range, 1-39 months). Fifteen patients answered to the QLQ-C30 questionnaires, and an improved quality of life was documented in 9 cases. TP53 mutations were detected in 2 of 6 (33%) nonresponders and in none of the responders (P = .12). Germinal center B-cell type responded better than activated B-cell type (response rate was 83% and 29%, respectively, P = .01). These findings indicate that LDRT is effective for palliation in patients with DLBCL.


Assuntos
Linfoma Difuso de Grandes Células B/radioterapia , Qualidade de Vida/psicologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Intervalo Livre de Doença , Feminino , Humanos , Linfoma Difuso de Grandes Células B/patologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos
8.
Int J Cancer ; 149(5): 1199-1200, 2021 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-33861864
9.
Blood ; 122(19): 3251-62, 2013 Nov 07.
Artigo em Inglês | MEDLINE | ID: mdl-24014242

RESUMO

Limited comparative data exist for the treatment of HIV-associated non-Hodgkin lymphoma. We analyzed pooled individual patient data for 1546 patients from 19 prospective clinical trials to assess treatment-specific factors (type of chemotherapy, rituximab, and concurrent combination antiretroviral [cART] use) and their influence on the outcomes complete response (CR), progression free survival (PFS), and overall survival (OS). In our analysis, rituximab was associated with a higher CR rate (odds ratio [OR] 2.89; P < .001), improved PFS (hazard ratio [HR] 0.50; P < .001), and OS (HR 0.51; P < .0001). Compared with cyclophosphamide, doxorubicin, vincristine, and prednisone (CHOP), initial therapy with more dose-intense regimens resulted in better CR rates (ACVBP [doxorubicin, cyclophosphamide, vindesine, bleomycin and prednisolone]: OR 1.70; P < .04), PFS (ACVBP: HR 0.72; P = .049; "intensive regimens": HR 0.35; P < .001) and OS ("intensive regimens": HR 0.54; P < .001). Infusional etoposide, prednisone, infusional vincristine, infusional doxorubicin, and cyclophosphamide (EPOCH) was associated with significantly better OS in diffuse large B-cell lymphoma (HR 0.33; P = .03). Concurrent use of cART was associated with improved CR rates (OR 1.89; P = .005) and trended toward improved OS (HR 0.78; P = .07). These findings provide supporting evidence for current patterns of care where definitive evidence is unavailable.


Assuntos
Fármacos Anti-HIV/uso terapêutico , Anticorpos Monoclonais Murinos/uso terapêutico , Antineoplásicos/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Infecções por HIV/tratamento farmacológico , Linfoma Relacionado a AIDS/tratamento farmacológico , Linfoma não Hodgkin/tratamento farmacológico , Terapia Antirretroviral de Alta Atividade , Ensaios Clínicos como Assunto , Ciclofosfamida/uso terapêutico , Doxorrubicina/uso terapêutico , Esquema de Medicação , Etoposídeo/uso terapêutico , HIV/efeitos dos fármacos , Infecções por HIV/complicações , Infecções por HIV/mortalidade , Infecções por HIV/virologia , Humanos , Infusões Intravenosas , Linfoma Relacionado a AIDS/complicações , Linfoma Relacionado a AIDS/mortalidade , Linfoma Relacionado a AIDS/virologia , Linfoma não Hodgkin/complicações , Linfoma não Hodgkin/mortalidade , Linfoma não Hodgkin/virologia , Prednisona/uso terapêutico , Rituximab , Análise de Sobrevida , Resultado do Tratamento , Vincristina/uso terapêutico
10.
Support Care Cancer ; 23(9): 2663-8, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-25646617

RESUMO

PURPOSE: Since long-term survivorship is now a reality for an increasingly number of people with a history of cancer, understanding their quality of life (QoL) can inform health care policy as well as help supporting individual patients. This study was aimed to quantify QoL of this specific population in comparison with data provided for both the general population and cancer patients and to assess QoL association with several sociodemographic, clinical, and psychological variables. METHODS: Three hundred fourteen Italian long-term cancer survivors (people who have been free from cancer and cancer treatments for at least 5 years) completed a battery of questionnaires including the SF12 for QoL assessment. RESULTS: Both physical and mental functioning were higher than those among Italian cancer patients but lower than those of the Italian general population (p < .001). Poorer QoL (physical and mental functioning) was associated more often with psychological conditions (as anxiety and depression) than with sociodemographic and cancer-related variables. CONCLUSIONS: These data support an ongoing specific interest in the QoL of long-term cancer survivors and suggest the need for further study of multidimensional functioning in this population.


Assuntos
Neoplasias/fisiopatologia , Neoplasias/psicologia , Sobreviventes/psicologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Psicometria/métodos , Qualidade de Vida/psicologia , Inquéritos e Questionários
11.
Haematologica ; 99(11): 1731-7, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25150257

RESUMO

While the International Prognostic Index is commonly used to predict outcomes in immunocompetent patients with aggressive B-cell non-Hodgkin lymphomas, HIV-infection is an important competing risk for death in patients with AIDS-related lymphomas. We investigated whether a newly created prognostic score (AIDS-related lymphoma International Prognostic Index) could better assess risk of death in patients with AIDS-related lymphomas. We randomly divided a dataset of 487 patients newly diagnosed with AIDS-related lymphomas and treated with rituximab-containing chemoimmunotherapy into a training (n=244) and validation (n=243) set. We examined the association of HIV-related and other known risk factors with overall survival in both sets independently. We defined a new score (AIDS-related lymphoma International Prognostic Index) by assigning weights to each significant predictor [age-adjusted International Prognostic Index, extranodal sites, HIV-score (composed of CD4 count, viral load, and prior history of AIDS)] with three risk categories similar to the age-adjusted International Prognostic Index (low, intermediate and high risk). We compared the prognostic value for overall survival between AIDS-related lymphoma International Prognostic Index and age-adjusted International Prognostic Index in the validation set and found that the AIDS-related lymphoma International Prognostic Index performed significantly better in predicting risk of death than the age-adjusted International Prognostic Index (P=0.004) and better discriminated risk of death between each risk category (P=0.015 vs. P=0.13). Twenty-eight percent of patients were defined as low risk by the ARL-IPI and had an estimated 5-year overall survival (OS) of 78% (52% intermediate risk, 5-year OS 60%; 20% high risk, 5-year OS 50%).


Assuntos
Anticorpos Monoclonais Murinos/uso terapêutico , Antineoplásicos/uso terapêutico , Linfoma Relacionado a AIDS/tratamento farmacológico , Linfoma Relacionado a AIDS/mortalidade , Adulto , Contagem de Linfócito CD4 , Ensaios Clínicos como Assunto , Feminino , Humanos , Linfoma Relacionado a AIDS/diagnóstico , Masculino , Pessoa de Meia-Idade , Prognóstico , Rituximab , Resultado do Tratamento , Carga Viral
12.
Recenti Prog Med ; 105(5): 181-3, 2014 May.
Artigo em Italiano | MEDLINE | ID: mdl-24873939

RESUMO

The approval of new antiviral agents and the wide-ranging costs of ophthalmic therapies with comparable efficacy have renewed the debate over the cost-effectiveness of novel drugs. In oncology, more expensive treatments do not always substantially change the outcome of the disease, but they merely prolong life expectancy by a few weeks even at the cost of significant side effects. Treatment costs are a key factor the physician should consider when sharing care decisions with the patient. In addition, fund allocation for purchasing high cost medications results in limited investment in clinical research and human resources - doctors, nurses and other healthcare staff - that play a central role in patient care. Regulatory agencies should be more demanding, reimbursing pharmaceutical companies on the basis of treatment outcome.


Assuntos
Antineoplásicos/economia , Neoplasias/economia , Antineoplásicos/uso terapêutico , Análise Custo-Benefício/economia , Custos de Cuidados de Saúde , Humanos , Itália , Neoplasias/terapia , Qualidade de Vida
13.
Oncologist ; 18(5): 592-9, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23666950

RESUMO

BACKGROUND: The aim of our work is to assess the clinical outcomes of liver transplantation (LT) for hepatocellular carcinoma (HCC) in HIV-coinfected patients. This is a multicenter study involving three Italian transplant centers in northern Italy: University of Modena, University of Bologna, and University of Udine. PATIENTS AND METHODS: We compared 30 HIV-positive patients affected by HCC who underwent LT with 125 HIV-uninfected patients who received the same treatment from September 2004 to June 2009. At listing, there were no differences between HIV-infected and -uninfected patients regarding HCC features. Patients outside the University of California, San Francisco criteria (UCSF) were considered eligible for LT if a down-staging program permitted a reduction of tumor burden. RESULTS: HIV-infected patients were younger, they were more frequently anti-HCV positive, and a higher number of HIV-infected patients presented a coinfection HBV-HCV. Pre-LT treatments (liver resection and or locoregional treatments) were similar between the two groups. Histological characteristics of the tumor were similar in patients with and without HIV infection. No differences were observed in terms of overall survival and HCC recurrence rates. CONCLUSION: LT for HCC is a feasible procedure and the presence of HIV does not particularly affect the post-LT outcome.


Assuntos
Carcinoma Hepatocelular/terapia , Infecções por HIV/terapia , Neoplasias Hepáticas/terapia , Transplante de Fígado , Adulto , Idoso , Carcinoma Hepatocelular/complicações , Carcinoma Hepatocelular/patologia , Carcinoma Hepatocelular/virologia , Feminino , Seguimentos , Infecções por HIV/complicações , Infecções por HIV/patologia , Infecções por HIV/virologia , HIV-1/patogenicidade , Humanos , Itália , Neoplasias Hepáticas/complicações , Neoplasias Hepáticas/patologia , Neoplasias Hepáticas/virologia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Taxa de Sobrevida , Resultado do Tratamento
14.
Haematologica ; 98(11): 1762-8, 2013 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-23975176

RESUMO

High-dose chemotherapy with autologous peripheral blood stem cell rescue has been reported as feasible and effective in HIV-associated lymphoma. Although a sufficient number of stem cells seems achievable in most patients, there are cases of stem cell harvest failure. The aim of this study was to describe the mobilization policies used in HIV-associated lymphoma, evaluate the failure rate and identify factors influencing mobilization results. We analyzed 155 patients who underwent attempted stem cell mobilization at 10 European centers from 2000-2012. One hundred and twenty patients had non-Hodgkin lymphoma and 35 Hodgkin lymphoma; 31% had complete remission, 57% chemosensitive disease, 10% refractory disease, 2% untested relapse. Patients were mobilized with chemotherapy + G-CSF (86%) or G-CSF alone (14%); 73% of patients collected >2 and 48% >5 × 10(6) CD34(+) cells/kg. Low CD4+ count and refractory disease were associated with mobilization failure. Low CD4(+) count, low platelet count and mobilization with G-CSF correlated with lower probability to achieve >5 × 10(6) CD34(+) cells/kg, whereas cyclophosphamide ≥ 3 g/m(2) + G-CSF predicted higher collections. Circulating CD34(+) cells and CD34/WBC ratio were strongly associated with collection result. HIV infection alone should not preclude an attempt to obtain stem cells in candidates for autologous transplant as the results are comparable to the HIV-negative population.


Assuntos
Soropositividade para HIV/terapia , Mobilização de Células-Tronco Hematopoéticas/métodos , Doença de Hodgkin/terapia , Linfoma não Hodgkin/terapia , Adulto , Idoso , Feminino , Soropositividade para HIV/diagnóstico , Soropositividade para HIV/epidemiologia , Doença de Hodgkin/diagnóstico , Doença de Hodgkin/epidemiologia , Humanos , Linfoma não Hodgkin/diagnóstico , Linfoma não Hodgkin/epidemiologia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Adulto Jovem
15.
Hematol Oncol ; 31(1): 22-8, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22488585

RESUMO

We investigated immunodeficiency-related non-Hodgkin lymphoma for the presence of molecular alterations affecting negative regulators of the Janus family protein tyrosine kinase/signal transducer and activator of transcription pathway. Protein tyrosine phosphatase, non-receptor type 6/Src homology 2-containing tyrosine phosphatase-1 epigenetic silencing was recurrent in primary effusion lymphoma (100%), and diffuse large B-cell lymphoma (63%), with a higher prevalence in the non-germinal centre subtype, and was associated with the activation of the Janus family protein tyrosine kinase/signal transducer and activator of transcription 3 pathway. Suppressor of cytokine signalling (SOCS)1 and SOCS3 epigenetic silencing were occasionally detected, whereas SOCS1 was frequently mutated in diffuse large B-cell lymphoma and polymorphic post-transplant lymphoproliferative disorders, possibly as a cause of aberrant somatic hypermutation. However, the mutation profile of the coding region of the gene was different from that expected from the aberrant somatic hypermutation process, suggesting that, at least in some cases, SOCS1 mutations may have been selected for their functional activity.


Assuntos
Citocinas/fisiologia , Metilação de DNA , Linfoma Relacionado a AIDS/genética , Transtornos Linfoproliferativos/genética , Proteínas de Neoplasias/genética , Complicações Pós-Operatórias/genética , Proteína Tirosina Fosfatase não Receptora Tipo 6/genética , Proteínas Supressoras da Sinalização de Citocina/genética , Linhagem Celular Tumoral , Evolução Clonal , Análise Mutacional de DNA , DNA de Neoplasias/genética , Humanos , Hospedeiro Imunocomprometido , Janus Quinases/fisiologia , Linfoma Relacionado a AIDS/fisiopatologia , Transtornos Linfoproliferativos/imunologia , Transtornos Linfoproliferativos/fisiopatologia , Mutação , Proteínas de Neoplasias/fisiologia , Transplante de Órgãos , Complicações Pós-Operatórias/imunologia , Complicações Pós-Operatórias/fisiopatologia , Proteína Tirosina Fosfatase não Receptora Tipo 6/fisiologia , Estudos Retrospectivos , Fatores de Transcrição STAT/fisiologia , Transdução de Sinais , Proteína 1 Supressora da Sinalização de Citocina , Proteína 3 Supressora da Sinalização de Citocinas , Proteínas Supressoras da Sinalização de Citocina/fisiologia
16.
Anticancer Drugs ; 24(2): 212-8, 2013 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23197082

RESUMO

Few data are available on the safety and efficacy of sorafenib in HIV-infected patients with unresectable hepatocellular carcinoma (HIV-u-HCC) and concomitant highly active antiretroviral therapy (HAART). Between July 2007 and October 2010, 27 consecutive HIV-u-HCC patients were treated with sorafenib and concomitant HAART within the Gruppo Italiano Cooperativo AIDS e Tumori (GICAT). Three patients achieved a partial response, 12 achieved a stable disease, and 12 showed progression. The median time to progression and overall survival was 5.1 (range 0.5-13.3) and 12.8 (range 1.1-23.5) months, respectively. Grades 3-4 toxicities included diarrhea (four patients, 14.8%), hypertension (three patients, 11%), and hand-and-foot skin reaction (four patients, 14.9%). Most drug-related side effects were low grade and manageable. This retrospective study shows favorable survival data among HIV-u-HCC patients treated with sorafenib together with a reasonable safety profile.


Assuntos
Antineoplásicos/uso terapêutico , Carcinoma Hepatocelular/tratamento farmacológico , Carcinoma Hepatocelular/virologia , Infecções por HIV/complicações , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/virologia , Niacinamida/análogos & derivados , Compostos de Fenilureia/uso terapêutico , Adulto , Idoso , Antineoplásicos/efeitos adversos , Terapia Antirretroviral de Alta Atividade/métodos , Progressão da Doença , Feminino , Infecções por HIV/tratamento farmacológico , Humanos , Masculino , Pessoa de Meia-Idade , Niacinamida/efeitos adversos , Niacinamida/uso terapêutico , Compostos de Fenilureia/efeitos adversos , Estudos Retrospectivos , Sorafenibe , Resultado do Tratamento
17.
Antioxidants (Basel) ; 12(11)2023 Nov 08.
Artigo em Inglês | MEDLINE | ID: mdl-38001838

RESUMO

Ozone is an allotrope of oxygen, widely known to exert an anti-oxidant potential. The ability of low, controlled and standardized doses of ozone in the ozone adjunct treatment of bacterial infections, which occur in wounds, is engaging clinical research to deepen the role of ozone in eradicating even multidrug-resistant bacteria. Ozone activates the nuclear factor erythroid 2-related factor 2 (Nrf2), and this activation triggers a complex cascade of events, which ultimately leads to macrophage training and an improvement in their ability to operate a clearance of bacteria in the patient's anatomical districts. In this review, we try to elucidate the recent evidence about the mechanisms with which ozone can actually remove bacteria and even multi-drug-resistant (MDR) bacteria, accounting on its complex ability in modulating immunity.

18.
Hum Exp Toxicol ; 42: 9603271231218926, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38073286

RESUMO

Ozone, an allotrope of oxygen, is enjoying an increasing interest in the setting and management of the medical adjunct treatment, which is called, maybe too simplistically, "ozone therapy". Ozone is not a medicine, so the word therapy does not properly fit this gaseous molecule. Like many natural compounds, for example plant flavonoids, even ozone interacts with aryl hydrocarbon receptors (AhRs) and, at low doses, it works according to the paradoxical mechanism of hormesis, involving mitochondria (mitohormesis). Ozone, in the hormetic range, exerts cell protective functions via the Nrf2-mediated activation of the anti-oxidant system, then leading to anti-inflammatory effects, also via the triggering of low doses of 4-HNE. Moreover, its interaction with plasma and lipids forms reactive oxygen species (ROS) and lipoperoxides (LPOs), generally called ozonides, which are enabled to rule the major molecular actions of ozone in the cell. Ozone behaves as a bioregulator, by activating a wide population of reactive intermediates, which usually target mitochondria and their turnover/biogenesis, often leading to a pleiotropic spectrum of actions and behaving as a tuner of the fundamental mechanisms of survival in the cell. In this sense, ozone can be considered a novelty in the medical sciences and in the clinical approach to pharmacology and medical therapy, due to its ability to target complex regulatory systems and not simple receptors.


Assuntos
Hormese , Ozônio , Ozônio/uso terapêutico , Antioxidantes/farmacologia , Espécies Reativas de Oxigênio , Personalidade
19.
Sci Rep ; 13(1): 4200, 2023 03 14.
Artigo em Inglês | MEDLINE | ID: mdl-36918713

RESUMO

TiO2-Ag doped nanoparticulate (TiO2-Ag-NP) adhesive photocatalytic films were used to assess the ability in dropping down the burden of indoor microbial particles. The application of an easy-to use photocatalytic adhesive film to cleanse indoor living spaces from microbial pollution, represents a novelty in the field of photocatalytic devices. Reduction was attained by photocatalysis in selected spaces, usually with overcrowding (≥ 3 individuals) in the common working daily hours, and upon indoor microclimate monitoring. TiO2-Ag doped nanoparticulate (TiO2-Ag-NP) adhesive photocatalytic films were applied within five types of living spaces, including schools and job places. The microbial pollution was assessed at time 0 (far from routine clean, ≥ 9 h) and throughout 2-4 weeks following the photocatalyst application by relative light unit (RLU) luminometry and microbial indirect assessment (colony forming units per cubic meter, CFU/m3). TiO2-Ag-NP photocatalyst reduced RLU and CFU/m3 by rates higher than 70% leading to RLU ≤ 20 and microbial presence ≤ 35 CFU/m3. The described TiO2-Ag-NP is able to reduce microbial pollution to the lowest RLU threshold (≤ 20) within 60 min in open daylight in a standardized test room of 100 m2. The correlation between RLU and CFU/m3 was positive (r = 0.5545, p < 0.05), assessing that the microbial reduction of indoor areas by the TiO2-Ag-NP adhesive film was real. Titania photocatalysts represent promising tools to ensure air cleaning and sanitization in living indoor microclimates with a low cost, feasible and straightforward approach. This approach represents an easy to handle, cost effective, feasible and efficacious approach to reduce microbial pollution in indoor spaces, by simply attaching a TiO2-Ag-NP adhesive film on the wall.


Assuntos
Titânio , Humanos , Catálise
20.
Biology (Basel) ; 12(12)2023 Dec 11.
Artigo em Inglês | MEDLINE | ID: mdl-38132338

RESUMO

BACKGROUND: Ozone is an allotrope of oxygen whose use in medicine has rapidly grown in recent years. Ozonated blood allows for the use of ozone in a safe modality, as plasma and blood cells are endowed with an antioxidant system able to quench ozone's pro-oxidant property and to elicit the Nrf2/Kwap1/ARE pathway. METHODS: We present two clinical studies, a case-series (six patients) observational study adopting ozone as a major autohemotherapy and topical ozone to address infected post-surgical wounds with multi-drug resistant bacteria and an observational study (250 patients) using ozonated blood for treating knee osteoarthritis. RESULTS: Ozonated blood via major autohemotherapy reduced the extent of infections in wounds, reduced the inflammatory biomarkers by more than 75% and improved patients' QoL, whereas ozonated blood via minor autohemotherapy improved significantly (p < 0.001) WOMAC and Lequesne's parameters in knee osteoarthritis. CONCLUSIONS: The models described, i.e., ozone autohemotherapy in wound antimicrobial treatment and ozonated blood in knee osteoarthrosis, following our protocols, share the outstanding ability of ozone to modulate the innate immune response and address bacterial clearance as well as inflammation and pain.

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