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1.
Ann Oncol ; 35(1): 118-129, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-37922989

RESUMEN

BACKGROUND: Optimal consolidation for young patilents with relapsed/refractory (R/R) follicular lymphoma (FL) remains uncertain in the rituximab era, with an unclear benefit of autologous stem cell transplantation (ASCT). The multicenter, randomized, phase III FLAZ12 (NCT01827605) trial compared anti-CD20 radioimmunotherapy (RIT) with ASCT as consolidation after chemoimmunotherapy, both followed by rituximab maintenance. PATIENTS AND METHODS: Patients (age 18-65 years) with R/R FL and without significant comorbidities were enrolled and treated with three courses of conventional, investigator-chosen chemoimmunotherapies. Those experiencing at least a partial response were randomized 1 : 1 to ASCT or RIT before CD34+ collection, and all received postconsolidation rituximab maintenance. Progression-free survival (PFS) was the primary endpoint. The target sample size was 210 (105/group). RESULTS: Between August 2012 and September 2019, of 164 screened patients, 159 were enrolled [median age 57 (interquartile range 49-62) years, 55% male, 57% stage IV, 20% bulky disease]. The study was closed prematurely because of low accrual. Data were analyzed on 8 June 2023, on an intention-to-treat basis, with a 77-month median follow-up from enrollment. Of the 141 patients (89%), 70 were randomized to ASCT and 71 to RIT. The estimated 3-year PFS in both groups was 62% (hazard ratio 1.11, 95% confidence interval 0.69-1.80, P = 0.6662). The 3-year overall survival also was similar between the two groups. Rates of grade ≥3 hematological toxicity were 94% with ASCT versus 46% with RIT (P < 0.001), and grade ≥3 neutropenia occurred in 94% versus 41%, respectively (P < 0.001). Second cancers occurred in nine patients after ASCT and three after radioimmunotherapy (P = 0.189). CONCLUSIONS: Even if prematurely discontinued, our study did not demonstrate the superiority of ASCT versus RIT. ASCT was more toxic and demanding for patients and health services. Both strategies yielded similar, favorable long-term outcomes, suggesting that consolidation programs milder than ASCT require further investigation in R/R FL.


Asunto(s)
Trasplante de Células Madre Hematopoyéticas , Linfoma Folicular , Humanos , Masculino , Persona de Mediana Edad , Adolescente , Adulto Joven , Adulto , Anciano , Femenino , Linfoma Folicular/radioterapia , Radioinmunoterapia , Rituximab , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Supervivencia sin Enfermedad , Trasplante Autólogo , Trasplante de Células Madre
2.
Ann Hematol ; 101(8): 1727-1739, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35587825

RESUMEN

We report herein a multicentre retrospective analysis of 192 consecutive patients with symptomatic refractory/relapsed multiple myeloma (RRMM) treated with daratumumab in combination with bortezomib or lenalidomide as salvage therapy at 9 haematological centres in Puglia. Choice of both regimens was based on previous treatment and/or physicians' preference. Considering the under-representation of older patients (very old patient ≥ 80 years) in clinical trials and the prognostic and predictive importance and value of frailty status, here, we further characterised the patient cohort by age. The overall response rate (ORR) was generally lower than what was previously reported in the CASTOR (ORR 72.6% vs 85%) and POLLUX (ORR 86.5% vs 93%) trials. The lower ORR in our analysis compared to the CASTOR and POLLUX trials could be related to a less selected population. Similarly, amongst very old patients, the ORR was encouraging: ORR to treatment with DVd (daratumumab + bortezomib + dexamethasone) was 66.7%, and ORR to treatment with DRd (daratumumab + lenalidomide + dexamethasone) was 92.3%. Median TTP (time to progression) was 10.8 months (1-year TTP: 44.7%; 2-year TTP: 25.3%) in the DVd group; median TTP was not reached in the DRd group (1-year TTP: 82.7%; 2-year TTP: 71.4%). Median OS (overall survival) was not reached either in the DRd group (1-year OS: 85.9%; 2-year OS: 73.7%) or the DVd group (1-year OS: 70.2%; 2-year OS: 58.9%).


Asunto(s)
Mieloma Múltiple , Neoplasias de Células Plasmáticas , Anticuerpos Monoclonales , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Bortezomib , Dexametasona , Estudios de Seguimiento , Humanos , Lenalidomida , Mieloma Múltiple/tratamiento farmacológico , Estudios Retrospectivos , Terapia Recuperativa
3.
Lupus ; 28(12): 1417-1426, 2019 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-31551036

RESUMEN

OBJECTIVES: The objective of this article is to describe maternal and perinatal outcomes in women with systemic lupus erythematosus (SLE) followed in a high-risk prenatal outpatient clinic at a referral center. METHODS: This observational study included pregnant women with SLE who underwent prenatal follow-up and childbirth at the Women's Hospital, University of Campinas, from January 2012 to January 2018. All women were followed according to the institution's protocol for pregnant women with SLE. They were subdivided into two groups according to the presence of disease activity during the preconception and gestation periods, and evaluated according to the Systemic Lupus Erythematosus Disease Activity Index and Systemic Lupus Erythematosus Pregnancy Disease Activity Index scales. Data were retrieved from patients' medical records. Chi-square, Fisher exact and Mann-Whitney tests and multivariable analyses were performed. Statistical significance level was 5% (p < .05). RESULTS: A total of 125 cases were initially included; those who were lost to follow-up or gave birth at another hospital were further excluded, with 102 pregnancies (of 95 women) remaining. The mean age of the women was 27.7 years (SD 5.44), and 48% were in their first gestation. The average duration of disease was 6.79 years (SD 5.38), with 92.1% receiving SLE-specific therapy. SLE flare occurred in 8.9% during the preconception period and 23.5% during gestation. Preterm premature rupture of membranes (16.6%), preeclampsia or eclampsia (15.6%) and preterm labor (12.7%) were the most frequent complications. The mean gestational age at birth was 34.4 weeks (SD 5.9); the preterm birth rate was 46.8%, the low birth weight rate was 35.1%, and intensive neonatal care admission was 40.4%. Four fetal deaths and one maternal death occurred, all of them in the group with SLE flares. Multivariable logistic regression analysis showed that preconception lupus activity had a six-fold increased rate of gestational loss (odds ratio (OR): 6.14 (95% confidence interval (CI) 1.26-29.99)), and lupus activity during pregnancy had a five-fold increased rate of prematurity at less than 34 weeks (OR: 5.02 (95% CI: 1.90-13.30)). CONCLUSIONS: Despite the low percentages of women with pregestational and pregnancy-active disease, we found high incidences of maternal and perinatal complications. Preconception SLE activity increased gestational loss, and SLE activity during pregnancy increased prematurity. Effective immunosuppressive therapy was able to decrease clinical and laboratory activity of SLE; however, unfavorable perinatal outcomes still occurred, even when lupus activity was under control. Pregnancy in women with SLE is always a challenge.


Asunto(s)
Lupus Eritematoso Sistémico/complicaciones , Complicaciones del Embarazo/prevención & control , Atención Prenatal/normas , Adulto , Brasil/epidemiología , Femenino , Muerte Fetal/etiología , Rotura Prematura de Membranas Fetales/epidemiología , Edad Gestacional , Humanos , Inmunosupresores/uso terapéutico , Incidencia , Recién Nacido de Bajo Peso , Cuidado Intensivo Neonatal/estadística & datos numéricos , Lupus Eritematoso Sistémico/tratamiento farmacológico , Lupus Eritematoso Sistémico/epidemiología , Muerte Materna/estadística & datos numéricos , Trabajo de Parto Prematuro , Preeclampsia/epidemiología , Atención Preconceptiva/normas , Embarazo , Complicaciones del Embarazo/epidemiología , Resultado del Embarazo/epidemiología , Nacimiento Prematuro , Atención Prenatal/métodos , Estudios Retrospectivos
4.
Eur Rev Med Pharmacol Sci ; 27(11): 5246-5256, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-37318499

RESUMEN

Anisakiasis is an arising zoonosis induced by parasitic nematodes belonging to the family Anisakidae. Anisakiasis is often caused by the ingestion of larval nematodes in uncooked or minimally processed seafood dishes, which are regularly consumed by humans. Significant potential sources of infection are raw fish (e.g., sushi and sashimi) that can be found in traditional Japanese cuisine and can be part of the culinary tradition of consumption of raw or marinated fish that is particularly diffused in European countries. During the last five decades, the global prevalence of human anisakiasis has been rising, becoming an emergent major public health problem. Thus, there is an unmet need for well-defined and cost-effective methods aimed at killing Anisakis larvae, thus reducing the incidence of anisakiasis. In this mini-review, we discuss the clinical features of anisakiasis as well as the effectiveness and mechanisms of action of the main methods employed for increasing seafood safety and killing Anisakis larvae, including freezing, heating, use of high hydrostatic pressure, salting process, pepsin digestion method and use of garlic oil.


Asunto(s)
Anisakiasis , Anisakis , Animales , Humanos , Anisakiasis/prevención & control , Anisakiasis/epidemiología , Anisakiasis/etiología , Larva , Alimentos Marinos/parasitología , Peces/parasitología
5.
Eur Rev Med Pharmacol Sci ; 27(5): 1921-1944, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36930488

RESUMEN

The growing global epidemic of obesity and type 2 diabetes mellitus has determined an increased prevalence of NAFLD (non-alcoholic fatty liver disease), making it the most common chronic liver disease in the Western world and a leading cause of liver transplantation. In the last few years, a rising number of studies conducted both on animal and human models have shown the existence of a close association between insulin resistance (IR), dysbiosis, and steatosis. However, all the mechanisms that lead to impaired permeability, inflammation, and fibrosis have not been fully clarified. Recently, new possible treatment modalities have received much attention. To reach the review purpose, a broad-ranging literature search on multidisciplinary research databases was performed using the following terms alone or in combination: "NAFLD", "gut dysbiosis", "insulin resistance", "inflammation", "probiotics", "Chinese herbs". The use of probiotics, prebiotics, symbiotics, postbiotics, fecal microbiota transplant (FMT), Chinese herbal medicine, antibiotics, diet (polyphenols and fasting diets), and minor therapies such as carbon nanoparticles, the MCJ protein, water rich in molecular hydrogen, seems to be able to improve the phenotypic pattern in NAFLD patients. In this review, we provide an overview of how IR and dysbiosis contribute to the development and progression of NAFLD, as well as the therapeutic strategies currently in use.


Asunto(s)
Diabetes Mellitus Tipo 2 , Microbioma Gastrointestinal , Insulinas , Enfermedad del Hígado Graso no Alcohólico , Animales , Humanos , Enfermedad del Hígado Graso no Alcohólico/metabolismo , Disbiosis/terapia , Diabetes Mellitus Tipo 2/patología , Inflamación/patología , Hígado/patología
6.
Eur Rev Med Pharmacol Sci ; 26(2): 558-572, 2022 01.
Artículo en Inglés | MEDLINE | ID: mdl-35113432

RESUMEN

OBJECTIVE: The aim of this study was to assess the impact of glucose control, diabetes-related complications and cardiometabolic risk factors on the risk of diabetic foot ulcers (DFUs) and DFU complications in Albanian adult inpatients with T2D. PATIENTS AND METHODS: We conducted a retrospective case-control study on 482 Albanian adult inpatients with T2D. DFU was defined as a full-thickness skin lesion requiring ≥14 days for healing and was classified at the time of hospital admission. Demographic and biochemical parameters of the study participants, the presence of comorbidities and diabetes-related complications at the time of hospital admission were evaluated through a retrospective chart review. RESULTS: Mean age of study participants was 54.8±10.7 years. Participants (284 males and 198 females) were divided into two groups: DFU (cases; n=104) and non-DFU (controls; n=378). Multivariate analysis (performed by a logistic regression model) revealed that the most relevant independent variables associated with DFU were BMI [OR=0.62; p=0.007], HDL-cholesterol [OR=0.00; p<0.0001], triglycerides [OR=7.48; p=0.0004], cigarette smoking [OR=26.46; p=0.005], duration of diabetes [OR=1.53; p<0.0001], fasting plasma glucose (FPG) [OR=1.06; p<0.0001], systolic blood pressure (SBP) [OR=1.13; p=0.0004] and insulin therapy alone [OR=0.11; p=0.02]. ROC curve analysis showed that FPG (AUC=0.83), glycated hemoglobin (HbA1c) (AUC=0.75), triglycerides (AUC=0.78) and HDL-cholesterol (AUC=0.82) were the most reliable biomarkers able to detect DFU. In the DFU group, the most relevant independent variables associated with previous minor lower-extremity amputations (LEAs) were represented by HbA1c [OR=1.47; p=0.03], age <55 years [OR=0.12; p=0.05] and female sex [OR=4.18; p=0.03]; whereas the most relevant independent variables associated with diabetic peripheral neuropathy (DPN) were HbA1c [OR=1.70; p=0.006], SBP [OR=1.08; p=0.05], BMI [OR=1.20; p=0.03] and lack of cigarette smoking [OR=0.07; p=0.01]. Correlation analysis (performed through the nonparametric Spearman's rank correlation test or through the parametric Pearson test, as appropriate) revealed a significant positive relationship between HbA1c and FPG (r=0.58; p<0.0001), ulcer surface area (r=0.50; p<0.0001), ulcer grade (r=0.23; p=0.02), minor LEAs (r=0.20; p=0.04), DPN (r=0.41; p<0.0001), and metformin therapy alone (r=0.72; p<0.0001). There was a significant inverse correlation between HbA1c and insulin therapy alone (r=-0.31; p=0.01) and combined metformin and insulin therapy (r=-0.60; p<0.0001). Both DFU and non-DFU groups exhibited suboptimal mean LDL-cholesterol levels (>100 mg/dl) and mean HbA1c values >7.5%. Moreover, in DFU group HbA1c values were markedly elevated (≥10%) particularly in patients with a grade 3 ulcer and an ulcer surface area ≥4 cm2, as well as in patients with history of minor LEAs and in patients affected by DPN. CONCLUSIONS: The present study suggested that longer duration of diabetes, cigarette smoking, lower HDL-cholesterol levels, poor glucose control, and elevated triglyceride and SBP values may all represent major risk factors for the development of DFU in Albanian patients with T2D. Thus, community interventions and health policies aimed to improve the management of diabetes and related cardiometabolic risk factors should be urgently implemented in Albania, in order to prevent DFUs and other diabetes complications in patients with T2D.


Asunto(s)
Diabetes Mellitus Tipo 2 , Pie Diabético , Adulto , Anciano , Estudios de Casos y Controles , Diabetes Mellitus Tipo 2/complicaciones , Diabetes Mellitus Tipo 2/epidemiología , Pie Diabético/diagnóstico , Pie Diabético/epidemiología , Femenino , Humanos , Pacientes Internos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Riesgo
7.
Bone Marrow Transplant ; 41(11): 977-81, 2008 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-18425147

RESUMEN

This study aimed to identify which graft product subset of CD34+ cells might be the most predictive of early hematopoietic recovery following allogeneic peripheral SCT (allo-PBSCT). The relationship between the number of 'mature' subsets of CD34+ cells (CD34+/CD33+, CD34+/CD38+, CD34+/DR+ and CD34+/CD133-) and 'immature' subsets of CD34+ cells (CD34+/CD33-, CD34+/CD38-, CD34+/DR- and CD34+/CD133+) and early neutrophil and platelet engraftment were studied in a homogeneous series (for disease, pre transplant chemotherapy, conditioning regimen and GVHD prophylaxis) of 30 AML patients after allo-PBSCT from HLA-identical siblings. In our experience, the total CD34+/CD133+ cell number was inversely correlated with the days required for the recovery of 0.5 x 10(9)/l neutrophils (r=or-0.82, P=0.02) and platelets of 20 x 10(9)/l (r=or-0.60, P=0.06); this correlation was better than the total CD34+ cell dose and neutrophil (r=or-0.70, P=0.04) and platelet engraftment (r=or-0.56, P=0.07). We suggest that a high number of CD34+/CD133+ PBSC may be associated with faster neutrophil and platelet recovery; these findings may help to predict the repopulating capacity of PBSC in patients after allo-PBSCT, especially when a relatively low number of CD34+ cells is infused.


Asunto(s)
Antígenos CD34 , Supervivencia de Injerto/inmunología , Leucemia Mieloide Aguda/terapia , Trasplante de Células Madre de Sangre Periférica/métodos , Antígeno AC133 , Adolescente , Adulto , Antígenos CD , Diferenciación Celular , Estudios de Cohortes , Femenino , Glicoproteínas , Enfermedad Injerto contra Huésped/prevención & control , Prueba de Histocompatibilidad , Humanos , Masculino , Persona de Mediana Edad , Péptidos , Relaciones entre Hermanos , Células Madre/clasificación , Células Madre/citología , Trasplante Homólogo
8.
Bone Marrow Transplant ; 53(1): 58-63, 2018 01.
Artículo en Inglés | MEDLINE | ID: mdl-29084200

RESUMEN

Several guidelines have been published about management of chronic GvHD (cGvHD), but the clinical practice still remains demanding. The Gruppo Italiano Trapianto di Midollo Osseo (GITMO) has planned a prospective observational study on cGvHD, supported by a dedicated software, including the updated recommendations. In view of this study, two surveys have been conducted, focusing the management of cGvHD and ancillary therapy in cGvHD, to address the current 'real life' situation. The two surveys were sent to all 57 GITMO centers, performing allografting in Italy; the response rate was 57% and 66% of the interviewed centers, respectively. The first survey showed a great disparity especially regarding steroid-refractory cGvHD, although extracorporeal photo-apheresis resulted as the most indicated treatment in this setting. Another challenging issue was the strategy for tapering steroid: our survey showed a great variance, and this disagreement could be a real bias in evaluating outcomes in prospective studies. As for the second survey, the results suggest that the ancillary treatments are not standardized in many centers. All responding centers reported a strong need to standardize management of cGvHD and to participate in prospective trials. Before starting observational and/or interventional studies, a detailed knowledge of current practice should be encouraged.


Asunto(s)
Enfermedad Injerto contra Huésped/terapia , Enfermedad Crónica , Femenino , Enfermedad Injerto contra Huésped/patología , Humanos , Italia , Masculino
9.
Clin Microbiol Infect ; 21(4): 337-43, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25595706

RESUMEN

A prospective cohort study was conducted in nine hematology wards at tertiary care centres or at university hospitals located throughout Italy from January 2009 to December 2012. All of the cases of bacterial bloodstream infection (BBSI) occurring in adult patients with hematologic malignancies were included. A total of 668 bacterial isolates were recovered in 575 BBSI episodes. Overall, the susceptibility rates of Gram-negative bacteria were 59.1% to ceftazidime, 20.1% to ciprofloxacin, 79.1% to meropenem, 85.2% to amikacin, 69.2% to gentamicin and 69.8% to piperacillin/tazobactam. Resistance to third-generation cephalosporins was found in 98/265 (36.9%) of Enterobacteriaceae isolates. Among Klebsiella pneumoniae strains, 15/43 (34.9%) were resistant to carbapenems. Of 66 Pseudomonas aeruginosa isolates, 46 (69.7%) were multidrug resistant. Overall, the susceptibility rates of Gram-positive bacteria were 97.4% to vancomycin and 94.2% to teicoplanin. Among the monomicrobial cases of BBSI, the 21-day mortality rate was significantly higher for those caused by Gram-negative bacteria compared to those caused by Gram-positive bacteria (47/278, 16.9% vs. 12/212, 5.6%; p < 0.001). Among Gram-negative bacteria, the mortality rate was significantly higher for BBSI caused by K. pneumoniae, P. aeruginosa, and Acinetobacter baumannii. Our results confirm the recently reported shift of prevalence from Gram-positive to Gram-negative bacteria as causative agents of BBSIs among patients with hematologic malignancies and highlight a worrisome increasing frequency in antimicrobial resistance among Gram-negative bacteria.


Asunto(s)
Bacteriemia/epidemiología , Bacteriemia/microbiología , Farmacorresistencia Bacteriana , Bacterias Gramnegativas/efectos de los fármacos , Bacterias Grampositivas/efectos de los fármacos , Neoplasias Hematológicas/complicaciones , Adulto , Anciano , Femenino , Bacterias Gramnegativas/clasificación , Bacterias Gramnegativas/aislamiento & purificación , Bacterias Grampositivas/clasificación , Bacterias Grampositivas/aislamiento & purificación , Humanos , Italia/epidemiología , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Centros de Atención Terciaria
10.
Curr Med Chem ; 22(33): 3765-88, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26264924

RESUMEN

Senescence is a phenomenon characterized by a progressive decline of body homeostasis. Premature senescence acts when the cellular system is not able to adequately respond to noxious stimuli by synthesis of stressor molecules. Among those, serum-and-glucocorticoidinducible kinase-1 (SGK-1) dramatically increases under typical physiopathological conditions, such as glucocorticoid or mineralcorticoids exposure, inflammation, hyperglycemia, and ischemia. SGK-1 has been implicated in mechanism regulating oxidative stress, apoptosis, and DNA damage, which are all leading to a state of accelerating aging. Moreover, SGK-1-sensitive ion channels participate in the regulation of renal Na(+)/K(+) regulation, blood pressure, gastric acid secretion, cardiac action potential, and neuroexcitability. Recently, we demonstrated in endothelial cells as an increase in SGK-1 activity and expression reduces oxidative stress, improves cell survival and restores insulin-mediated nitric oxide production after hyperglycemia. Moreover, we showed as SGK-1 delays the onset of senescence by increasing telomerase activity, significantly decreasing reactive oxygen species (ROS) production, and by directly interacting with hTERT. Therefore, SGK-1 may represent a specific target to further develop novel therapeutic options against chronic diseases such as diabetes typical of aging. SGK-1 has been also associated with cancer, neurodegenerative diseases, and cardiovascular disease, among other age-related diseases. However, to date, the data available on SGK-1 and aging, are sparse, controversial, and only from C. elegans experimental models. In this review we sought to discuss the possible implication of SGK-1 in mechanisms regulating senescence and age-related diseases. Moreover, we aimed to discuss and identify the possible role of SGK-1 as possible molecular target to counteract and prevent aging.


Asunto(s)
Envejecimiento , Enfermedades Cardiovasculares/enzimología , Proteínas Inmediatas-Precoces/metabolismo , Terapia Molecular Dirigida , Neoplasias/enzimología , Trastornos Neurocognitivos/enzimología , Proteínas Serina-Treonina Quinasas/metabolismo , Animales , Enfermedades Cardiovasculares/tratamiento farmacológico , Enfermedades Cardiovasculares/metabolismo , Humanos , Neoplasias/tratamiento farmacológico , Neoplasias/metabolismo , Trastornos Neurocognitivos/tratamiento farmacológico , Trastornos Neurocognitivos/metabolismo
11.
Bone Marrow Transplant ; 50(2): 282-8, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25310302

RESUMEN

Infections by carbapenem-resistant Klebsiella pneumoniae (CRKp) represent a challenging problem after SCT. A retrospective survey (January 2010 to July 2013) involving 52 Italian centers was performed to assess the epidemiology and the prognostic factors of CRKp infections in auto- and allo-SCT. Cases of CRKp infection were reported in 53.4% of centers. CRKp infections were documented in 25 auto-SCTs and 87 allo-SCTs, with an incidence of 0.4% (from 0.1% in 2010 to 0.7% in 2013) and 2% (from 0.4% in 2010 to 2.9% in 2013), respectively. A CRKp colonization documented before or after transplant was followed by an infection in 25.8% of auto-SCT and 39.2% of allo-SCT patients. The infection-related mortality rates were 16% and 64.4%, respectively. A pre-transplant CRKp infection (hazard ratio (HR) 0.33, 95% confidence intervals (CIs) 0.15-0.74; P=0.007) and a not CRKp-targeted first-line treatment (HR 2.67, 95% CI 1.43-4.99; P=0.002) were independent factors associated with an increased mortality in allo-SCT patients who developed a CRKp infection. Our study shows challenging findings of CRKp infections in SCT patients in Italy particularly after allo-SCT. The detection of carriers and the definition of early therapeutic strategies represent critical aspects of the management of CRKp infections after SCT.


Asunto(s)
Carbapenémicos , Farmacorresistencia Bacteriana , Infecciones por Klebsiella/mortalidad , Klebsiella pneumoniae , Trasplante de Células Madre , Adolescente , Adulto , Anciano , Aloinjertos , Autoinjertos , Femenino , Enfermedades Hematológicas/mortalidad , Enfermedades Hematológicas/terapia , Humanos , Italia , Infecciones por Klebsiella/etiología , Infecciones por Klebsiella/prevención & control , Masculino , Persona de Mediana Edad , Estudios Retrospectivos
12.
Cell Death Dis ; 6: e1890, 2015 Sep 17.
Artículo en Inglés | MEDLINE | ID: mdl-26379195

RESUMEN

Ceramide regulates several different cellular responses including mechanisms leading to apoptosis. Serum- and glucocorticoid-inducible protein kinase (SGK)-1 is a serine threonine kinase, which activates survival pathways in response to stress stimuli. Recently, we demonstrated an anti-apoptotic role of SGK-1 in human umbilical endothelial cells treated with high glucose. In the present study, since ceramide induces apoptosis by multiple mechanisms in diabetes and its complication such as nephropathy, we aimed to investigate whether SGK-1 may protect even against apoptosis induced by ceramide in kidney cells. Human embryonic kidney (HEK)-293 cells stable transfected with SGK-1 wild type (SGK-1wt) and its dominant negative gene (SGK-1dn) have been used in this study. Apoptotic stimuli were induced by C2-ceramide and TNF-α to increase endogenous synthesis of ceramide. Upon activation with these stimuli, SGK-1wt transfected cells have a statistically significant reduction of apoptosis compared with SGK-1dn cells (P<0.001). This protection was dependent on activation of caspase-3 and Poly-ADP-ribose-polymerase-1 (PARP-1) cleavage. SGK-1 and AKT-1 two highly homologous kinases differently reacted to ceramide treatment, since SGK-1 increases in response to apoptotic stimulus while AKT-1 decreases. This enhancement of SGK-1 was dependent on p38-mitogen-activated-protein kinases (p38MAPK), cyclic-adenosine-monophosphate/protein kinase A (cAMP/PKA) and phosphoinositide-3-kinase (PI3K) pathways. Especially, by using selective LY294002 inhibitor, we demonstrated that the most involved pathway in the SGK-1 mediated process of protection was PI3K. Treatment with inhibitor of SGK-1 (GSK650394) significantly enhanced TNF-α-dependent apoptosis in HEK-293 cells overexpressing SGK-1wt. Caspase-3, -8 and -9 selective inhibitors confirmed that SGK-1 reduced the activation of caspase-dependent apoptosis, probably by both intrinsic and extrinsic pathways. In conclusion, we demonstrated that in kidney cells, overexpression of SGK-1 is protective against ceramide-induced apoptosis and the role of SGK-1 can be potentially explored as a therapeutic target in conditions like diabetes, where ceramide levels are increased.


Asunto(s)
Proteínas Inmediatas-Precoces/genética , Proteínas Inmediatas-Precoces/metabolismo , Riñón/metabolismo , Proteínas Serina-Treonina Quinasas/genética , Proteínas Serina-Treonina Quinasas/metabolismo , Factor de Necrosis Tumoral alfa/metabolismo , Apoptosis , Ceramidas , Células HEK293 , Humanos , Riñón/citología , Transfección
13.
FEBS Lett ; 470(1): 88-92, 2000 Mar 17.
Artículo en Inglés | MEDLINE | ID: mdl-10722851

RESUMEN

Linoleic acid (LA) and other fatty acids added to respiring durum wheat mitochondria (DWM) were found to cause a remarkable membrane potential (deltaPsi) decrease, as monitored by measuring safranin fluorescence. The rate of deltaPsi decrease showed (i) saturation dependence on LA concentration; (ii) fatty acid specificity; (iii) inhibition by externally added ATP, GDP, GTP and Mg(2+) and (iv) sigmoid dependence upon initial DeltaPsi, thus suggesting the existence of an active plant mitochondrial uncoupling protein (PUMP) in mitochondria from monocotyledonous species (durum wheat, Triticum durum Desf.). Surprisingly, the rate of the linoleate dependent DeltaPsi decrease was found to be activated by reactive oxygen species (ROS) (hydrogen peroxide and superoxide anion) and, moreover, linoleate proved to lower the mitochondrial generation of superoxide anion. These results suggest that ROS can activate PUMP, thus protecting the cell against mitochondrial ROS production.


Asunto(s)
Proteínas Portadoras/metabolismo , Ácidos Grasos/fisiología , Proteínas de la Membrana/metabolismo , Mitocondrias/fisiología , Nucleótidos/fisiología , Especies Reactivas de Oxígeno/metabolismo , Triticum/fisiología , Membranas Intracelulares/fisiología , Canales Iónicos , Proteínas Mitocondriales , Oxígeno/metabolismo , Proteína Desacopladora 1
14.
Leuk Res ; 20(11-12): 905-8, 1996.
Artículo en Inglés | MEDLINE | ID: mdl-9009247

RESUMEN

Among 235 patients with CML we reviewed 91 patients with BC diagnosed between 1980 and 1995; 15 of the 91 (16%) developed extramedullary disease (EMD). The sites involved were the lymph nodes (13/15), CNS (1/15) and suborbital mass (1/15). The appearance of EMD was associated with chronic phase (CP) features in the bone marrow in 3/15 cases, with accelerated phase (AP) in 3/15 and with BC in 9/15. 11/15 (73%) cases of EMD were classified as myeloid (My-EMD) and 4/15 as lymphoid-type (Ly-EMD): three B-phenotype and one T-phenotype. All Ly-EMD cases were treated with vincristine, daunorubicin and prednisone and obtained complete remission (CR). Cases of My-EMD were treated with daunorubicin and cytosine arabinoside, of which only 1/11 achieved CR. We suggest that in EMD also, the type, lymphoid or myeloid, of BC has a bearing on treatment response and prognosis: Ly-EMD is more responsive to treatment and has longer survival than My-EMD.


Asunto(s)
Crisis Blástica/patología , Sistema Nervioso Central/patología , Leucemia Mielógena Crónica BCR-ABL Positiva/patología , Ganglios Linfáticos/patología , Órbita/patología , Adulto , Anciano , Antineoplásicos Alquilantes/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Crisis Blástica/tratamiento farmacológico , Crisis Blástica/epidemiología , Crisis Blástica/radioterapia , Trasplante de Médula Ósea , Busulfano/uso terapéutico , Terapia Combinada , Citarabina/administración & dosificación , Daunorrubicina/administración & dosificación , Femenino , Humanos , Hidroxiurea/uso terapéutico , Interferón alfa-2 , Interferón-alfa/uso terapéutico , Leucemia Mielógena Crónica BCR-ABL Positiva/epidemiología , Leucemia Mielógena Crónica BCR-ABL Positiva/terapia , Leucemia Mieloide de Fase Acelerada/tratamiento farmacológico , Leucemia Mieloide de Fase Acelerada/patología , Leucemia Mieloide de Fase Crónica/tratamiento farmacológico , Leucemia Mieloide de Fase Crónica/patología , Masculino , Persona de Mediana Edad , Prednisona/administración & dosificación , Proteínas Recombinantes , Inducción de Remisión , Estudios Retrospectivos , Tasa de Supervivencia , Vincristina/administración & dosificación
15.
Bone Marrow Transplant ; 33(11): 1083-7, 2004 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-15077126

RESUMEN

SUMMARY: The factors possibly affecting the collection of peripheral blood stem cells (PBSC) were evaluated in 104 de novo acute leukemia patients (66 myeloid and 38 lymphoblastic leukemias) in first cytological complete remission (CR); all patients achieved CR after first-line induction chemotherapy. The acute myeloid leukemia patients (AML) were given consolidation-mobilization chemotherapy with cytarabine, and daunoblastin or mitoxantrone or idarubicin; the acute lymphoblastic leukemia patients (ALL) were given consolidation-mobilization chemotherapy with cytarabine and etoposide. In all patients, the collection of PBSC was performed during recovery after giving consolidation chemotherapy and granulocyte colony-stimulating factor (G-CSF). Two main groups were considered according to the CD34+ cells x 10(6)/kg b.w. collected, that is, poor mobilizers (PM), with a collection of <2 x 10(6)/kg and good mobilizers, with a collection of >2 x 10(6)/kg. Of 104 patients, 27 (25.9%) were PM; 20/27 had AML and 7/27 had ALL. At multivariate analysis, a lower CD34+ cells count premobilization chemotherapy (CD34 steady state), the presence of FUO (fever of unknown origin) or infection, and a lower number of CD34+ cells on the first day of collection correlated with poor mobilization. These results may enable early recognition of patients who may have poor mobilization, and aid selection of patients for different mobilization regimens.


Asunto(s)
Antígenos CD34/análisis , Movilización de Célula Madre Hematopoyética/normas , Leucemia/terapia , Enfermedad Aguda , Adolescente , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Recuento de Células , Femenino , Movilización de Célula Madre Hematopoyética/métodos , Células Madre Hematopoyéticas , Humanos , Leucaféresis/normas , Leucemia Mieloide/terapia , Masculino , Persona de Mediana Edad , Análisis Multivariante , Leucemia-Linfoma Linfoblástico de Células Precursoras/terapia , Factores de Riesgo
16.
Arch Ophthalmol ; 114(4): 392-9, 1996 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-8602775

RESUMEN

OBJECTIVE: To study the clinical profile and kindreds of patients with familial uveal melanoma (FUM). DESIGN: Retrospective case series. SETTING: Tertiary referral center. PATIENTS: Medical charts of 4500 patients with uveal melanoma were reviewed for family history of uveal melanoma. The clinical profile of these patients and their kindreds were studied to determine the incidence of FUM and pattern of inheritance. The association of FUM to cutaneous melanoma, familial atypical mole and melanoma syndrome, and other nonmelanocytic cancers was analyzed using statistical methods. RESULTS: Of 4500 patients with uveal melanoma, 56 patients in 27 families (0.6%) had a family history of uveal melanoma. The uveal melanoma in all 56 familial patients was unilateral. In 17 cases (63%), the second affected relative was a first-degree relative. In the remainder, the second affected relative was a second- (22%) and third-degree (15%) relative. In 25 families (93%) only two members were affected, and in two families (7%) three members had uveal melanoma. Patients with FUM were four times as likely to have a second primary malignant neoplasm than were people in the general population. However, no evidence was seem that unaffected kindreds of patients with FUM were at higher risk of having a second primary malignant neoplasm. CONCLUSIONS: Familial involvement in uveal melanoma is rare. Familial uveal melanoma most often (63%) affects first-degree relatives, rarely affects more than two persons in a family, and may be associated with a generalized inherited predisposition to cancer. Further genetic studies are necessary to fully characterize FUM syndrome.


Asunto(s)
Melanoma/genética , Melanoma/patología , Neoplasias de la Úvea/genética , Neoplasias de la Úvea/patología , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Neoplasias Primarias Secundarias/epidemiología , Neoplasias Primarias Secundarias/patología , Linaje , Prevalencia , Estudios Retrospectivos , Neoplasias Cutáneas/epidemiología , Neoplasias Cutáneas/patología
17.
Arch Pediatr Adolesc Med ; 154(11): 1085-8, 2000 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-11074847

RESUMEN

OBJECTIVE: To compare the completion rate of hepatitis B vaccination among adolescents who receive primary care at 2 comprehensive high school-based health centers (SBHCs) and a hospital-based adolescent health center (AHC) to assess predictors for successful immunization. METHODS: A retrospective chart review of patients seen for comprehensive history and physical examinations from September 1997 to March 1998 at 2 SBHCs and an AHC was conducted to determine the immunization status for hepatitis B. One SBHC (SBHC-A) had previously implemented an outreach strategy consisting of advertising through the school's loudspeaker, whereas the other SBHC (SBHC-B) and the AHC did not. Completion rates were assessed among all students requesting comprehensive history and physical examinations. A subset analysis among those without prior immunizations was performed. RESULTS: Of 510 records reviewed, 406 had documented data for hepatitis B immunization status, and 191 (37 for SBHC-A, 59 for SBHC-B, 95 for AHC) did not have any prior hepatitis immunizations. The completion rate of hepatitis B vaccination was significantly higher at SBHC-A (76%) compared with the other 2 sites (29% for SBHC-B and 24% for AHC) (P<.001). CONCLUSION: Patients with access to SBHC services that strongly emphasize outreach were more likely to complete the hepatitis B vaccination series.


Asunto(s)
Vacunas contra Hepatitis B/administración & dosificación , Hepatitis B/prevención & control , Programas de Inmunización/estadística & datos numéricos , Adolescente , Femenino , Promoción de la Salud , Humanos , Esquemas de Inmunización , Masculino , Estudios Retrospectivos , Vacunación/estadística & datos numéricos
18.
Arch Pediatr Adolesc Med ; 152(8): 763-7, 1998 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-9701135

RESUMEN

BACKGROUND: As school-based health centers (SBHCs) continue to grow, it remains important to study use of the centers. The extent to which mental health problems exist in the students with access to the centers, whether those students are using the available services, if they are satisfied with the services, and the reasons for nonuse by those students who do not enroll are all meaningful questions. METHODS: The above issues were studied in an urban high school with a 2-year-old SBHC by administering questions during physical education classes on health center use and mental health concerns. The 630 respondents were 45% male, 55% female, 61% black, 29% Hispanic, 54% in grades 9 or 10, 46% in grades 11 or 12. RESULTS: Sixty percent of the students were registered in the SBHC; 40% were not registered. Seventy-five percent of registered students reported average use (< or =3 visits); females were more likely than males (P=.017) to be frequent (>3 visits) users of SBHC services. Mental health problems among all participants included depression in 31%, use of alcohol 1 time or more per month in 21%, use of alcohol daily in 5%, suicidal ideation in 16%, history of a suicide attempt in 10%, knowing someone who had been murdered in 50%, and being in at least 1 fight at school in 26%. Frequent users, average users, and nonusers did not differ by age, grade, race, or any of the measured mental health problems. Among the 472 students who completed the survey section on SBHC perceptions, 305 described health center use: 92% were satisfied with health center services, 79% were comfortable being seen in the SBHC, 74% believed visits were kept confidential, 61% told their parents about each visit, and 51% considered the SBHC their regular health care source. The health center was used for mental health services by 34% and sexuality-related care by 15%. The 167 students who described reasons for not using the SBHC most frequently reported that they already had a physician (60%), did not need it (50%), prefer continuing previous health care (45%), did not get around to it (30%), parents were opposed (20%), were not comfortable (19%), did not know about the service (19%), and did not want problems known (19%). CONCLUSIONS: We conclude that, in this urban high school, (1) average users, frequent users, and nonusers did not differ in the mental health problems measured in this study; (2) those who used the SBHC indicated strong satisfaction with the care received; and (3) those who did not use the SBHC chose to stay away for a variety of reasons, most commonly the availability of other care or the perception of lack of need.


Asunto(s)
Servicios de Salud del Adolescente/estadística & datos numéricos , Servicios de Salud Mental/estadística & datos numéricos , Servicios de Salud Escolar/estadística & datos numéricos , Estudiantes/psicología , Adolescente , Actitud Frente a la Salud , Femenino , Humanos , Masculino , Satisfacción del Paciente/estadística & datos numéricos
19.
Leuk Lymphoma ; 18 Suppl 1: 37-42, 1995.
Artículo en Inglés | MEDLINE | ID: mdl-7496353

RESUMEN

Fifty-six patients with ALL were investigated for bcr involvement by PCR. Breakpoints were found in 15 patients (26.8%). There were no differences in clinical and hematologic features or the percentages of complete response (CR) between the Ph+ and Ph- cases. The duration of CR was 6 and 8 months, respectively. In 7/9 Ph1 relapsed ALL we observed increased expression of myeloid markers and 2/9 showed a switch of cytotype (Ly-->My). In none of the 13 Ph- relapsed ALL patients did we observe these findings. 7/15 of Ph+ cases expressed P190 and mRNA ela2 and 8/15 patients showed P210, with mRNA b3a2 in 5 and b2a2 in 3, respectively. The percentage of CR was 57% in the P190+ and 87% in the P210+ group. Investigation of more Ph1+ ALL cases treated with a uniform protocol should be performed in the future in order to determine whether any such biological and clinical differences exist.


Asunto(s)
Leucemia Mielógena Crónica BCR-ABL Positiva/clasificación , Leucemia-Linfoma Linfoblástico de Células Precursoras/clasificación , Adolescente , Adulto , Anciano , Secuencia de Bases , Cartilla de ADN/química , Femenino , Proteínas de Fusión bcr-abl/química , Proteínas de Fusión bcr-abl/genética , Humanos , Inmunofenotipificación , Leucemia Mielógena Crónica BCR-ABL Positiva/genética , Leucemia Mielógena Crónica BCR-ABL Positiva/patología , Masculino , Persona de Mediana Edad , Datos de Secuencia Molecular , Leucemia-Linfoma Linfoblástico de Células Precursoras/genética , Leucemia-Linfoma Linfoblástico de Células Precursoras/patología , ARN Neoplásico/genética
20.
Leuk Lymphoma ; 43(4): 911-4, 2002 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-12153186

RESUMEN

In a retrospective analysis of 161 consecutive adult patients with de novo acute myeloid leukemia undergoing induction therapy, including cytarabine, etoposide and anthracyclines, seven patients (4.3%) developed typhlitis. All presented severe neutropenia, fever, abdominal pain and tenderness within 16 days from starting chemotherapy (median 11 days; range 5-16). Three patients underwent surgery and survived, four were treated only with supportive therapy: two recovered and two died. In our experience early recognition of typhlitis and rapid recovery of the neutrophils are the most important determinants of the results of surgical and/or medical approaches. The management of typhlitis, a life-threatening condition, is controversial and depends on many factors characterizing each patient, which must be evaluated in collaboration between the surgeon and the hematologist.


Asunto(s)
Antineoplásicos/efectos adversos , Enfermedades del Ciego/etiología , Enterocolitis/etiología , Leucemia Mieloide Aguda/tratamiento farmacológico , Adolescente , Adulto , Enfermedades del Ciego/terapia , Enterocolitis/terapia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Necrosis , Pronóstico , Estudios Retrospectivos
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