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1.
Neoplasma ; 67(6): 1447-1455, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32787436

Resumo

Soft tissue sarcomas (STS) are uncommon, heterogeneous malignant tumors of mesodermal origin. Other than conservative surgery (CS), neoadjuvant or adjuvant radiotherapy (RT) is recommended when the risk of local recurrence is high. The aim of this study is to present our Institutional experience in adjuvant RT for treatment of STS of extremities and trunk (with either brachytherapy (BRT), external beam RT (EBRT), or both) and to provide an insight of toxicity and oncological outcomes for each RT modality. According to the RT treatment approach, patients were divided into three categories: 1) BRT alone; 2) EBRT alone; 3) combined BRT+EBRT. Differences among the three groups were assessed by the Chi-squared test. Patients' follow-up was performed every 6 months for the first two years after the end of RT and then once a year. Data from 90 patients were analyzed. The overall 3-year distant relapse-free survival (DRFS), progression-free survival (PFS), and overall survival (OS) were 84%, 80%, and 97%, respectively. Acute erythema was the most frequent side effect, although severe grade 3 toxicity was present in 5 patients. Chronic toxicity of any grade was reported in 14 patients. The incidence of chronic toxicity did not show any association with treatment modality. Multivariate analysis suggested a significant correlation between acute toxicity and tumor size, RT modality, and RT dose. In conclusion, good local control and toxicity profile were observed, despite negative patients' selection at baseline. Further investigation on wider series is warranted in order to define the optimal combination with systemic therapy.


Assuntos
Radioterapia Adjuvante , Sarcoma , Intervalo Livre de Doença , Extremidades/patologia , Humanos , Estudos Retrospectivos , Sarcoma/radioterapia
2.
Ann Ig ; 28(1): 15-24, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26980506

Resumo

BACKGROUND: From 2007, in the Veneto Region (Italy), a surveillance system for invasive pneumococcal diseases (IPD) was implemented to estimate the regional epidemiology of IPD and to evaluate the impact of 13-valent pneumococcal conjugate vaccine (PCV13) vaccination. METHODS: Data were collected from 2007 to 2014 and the total, annual and age-specific IPD notification rates were calculated. A Poisson regression model was used to identify the possible risk factors for developing IPD. RESULTS: A total of 713 IPD cases were notified and the overall IPD notification rate was equal to 2.0 cases per 100,000 population (95% CI: 1.7-2.1), with an increasing trend between 2007 and 2014. The pneumococcal serotypes were identified in 608 (85.3%) isolates from biological specimens, and the most distributed serotypes were those contained in PCV13. Children <5 year-old and the adults over 65 year-old showed the highest PCV13 vaccine-type IPD notification rate, equal to 2.7/100,000 and 2.8/100,000, respectively. The risk to develop IPD was greater in children aged <5 years (RR = 8.9, 95% CI: 5.1-15.9; p<0.0001) and in adults aged >65 years (RR = 4.3, 95% CI: 2.7-6.9; p<0.0001), especially in males > 65 years of age (RR = 1.7, 95% CI: 1.0-2.8; p = 0.042). The invasive pneumococcal disease was mainly caused by the PCV13 serotypes (RR = 2.9, 95%CI: 2.3-3.9; p<0.0001), principally after the PCV13 introduction (RR = 2.3, 95% CI: 1.4-3.8; p<0.001). In spite of that, a significant reduction of the overall IPD incidence is evident in the period following the PCV13 vaccine introduction (RR = 0.4, 95% CI: 0.3-0.5; p<0.0001), particularly in children aged <5 years (RR = 0.3, 95% CI: 0.2-0.7; p = 0.002), demonstrating the real efficacy of PCV13 immunization for children. CONCLUSIONS: In the Veneto Region, the surveillance system has allowed to describe the detailed epidemiological profile of invasive pneumococcal disease, pointing out that the most circulating pneumococcal serotypes were those contained in the PCV13 vaccine.


Assuntos
Infecções Pneumocócicas/epidemiologia , Infecções Pneumocócicas/prevenção & controle , Vacinas Pneumocócicas/administração & dosagem , Vacinação , Adolescente , Adulto , Distribuição por Idade , Idoso , Criança , Pré-Escolar , Feminino , Humanos , Incidência , Itália/epidemiologia , Masculino , Pessoa de Meia-Idade , Infecções Pneumocócicas/imunologia , Vacinas Pneumocócicas/imunologia , Vigilância da População , Estudos Prospectivos , Fatores de Risco , Distribuição por Sexo , Vacinação/métodos
3.
Int J Immunogenet ; 41(1): 90-1, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23581625

Resumo

Here, we present two new HLA allelic variants at C locus: HLA-C*08:63 and HLA-C*14:44 detected by sequence-based typing. In both cases, a single-nucleotide mutation in exon 3 is responsible for a change in aminoacid translation. The extremely high polymorphism of human leucocyte antigen (HLA) system in human genome is responsible for the capability to recognize different antigens, including non-self-MHC (Major Histocompatibility Complex) molecules. This very high polymorphism and the improving accuracy of genomic HLA typing methods lead to an exponential increasing of known HLA alleles. Here, we describe the characterization of two new HLA-C alleles identified by sequence-based typing (SBT): HLA-C*08:63 and HLA-C*14:44.


Assuntos
Alelos , Antígenos HLA-C/genética , Sequência de Bases , Antígenos HLA-C/química , Humanos , Dados de Sequência Molecular
4.
J Prev Med Hyg ; 53(2): 113-5, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23240172

Resumo

The goal of this study was to describe and comment the experience of the Veneto Region in the bacterial invasive disease. Vaccination coverage was 93% against pneumococcus and 95% against haemophilus influenzae type B. Regard to meningococcus C the coverage rate was 90.1% In children, 81% at 6 years of age and 78.2% at 15 years. The preliminary data of an active surveillance of invasive bacterial diseases show that the Streptoccoccus pneumoniae was the main agent involved and that its consequences were particularly serious in elderly subjects. With regard to Neisseria meningitidis, we observed a substantial reduction in the number of cases due to serogroup C and a concomitant rise in the percentage of cases due to serogroup B. The suspension of mandatory vaccination should be maintained, the monitoring of vaccination coverage and the active surveillance proved to be a very good assessment tools.


Assuntos
Infecções por Haemophilus/prevenção & controle , Vacinas Anti-Haemophilus/administração & dosagem , Infecções Meningocócicas/prevenção & controle , Vacinas Meningocócicas/administração & dosagem , Infecções Pneumocócicas/prevenção & controle , Vacinas Pneumocócicas/administração & dosagem , Feminino , Infecções por Haemophilus/epidemiologia , Humanos , Esquemas de Imunização , Itália/epidemiologia , Masculino , Infecções Meningocócicas/epidemiologia , Infecções Pneumocócicas/epidemiologia , Vigilância da População
5.
Br J Dermatol ; 165(2): 335-41, 2011 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-21564069

Resumo

BACKGROUND: Drug-induced subacute cutaneous lupus erythematosus (DI-SCLE) is a lupus variant with predominant skin involvement temporally related to drug exposure and resolving after drug discontinuation. It usually presents with annular polycyclic or papulosquamous eruptions on sun-exposed skin and shows serum anti-Ro/SSA antibodies. OBJECTIVES: To address the question whether DI-SCLE differs significantly from idiopathic SCLE by virtue of clinical features. METHODS: Ninety patients with SCLE seen in our departments from 2001 to 2010 were reviewed. Eleven of them diagnosed as having DI-SCLE were evaluated for type of skin lesions, systemic involvement, clinical course, and histopathological, direct immunofluorescence and laboratory findings. The cutaneous features were compared with those of the 79 patients with idiopathic SCLE. RESULTS: The cutaneous picture was widespread in 82% of patients with DI-SCLE and in 6% of those with idiopathic SCLE [odds ratio (OR) 66·6, 95% confidence interval (CI) 11·2-394·9; P = 0·0001]. Bullous and erythema multiforme (EM)-like lesions were present in 45% of patients with DI-SCLE and in 1% of those with idiopathic SCLE (OR 65·0, 95% CI 6·5-649·6; P = 0·0001). Vasculitic lesions were observed in 45% of patients with DI-SCLE and in 3% of those with idiopathic SCLE (OR 32·1, 95% CI 5·1-201·7; P = 0·0001). Malar rash occurred in 45% of patients with DI-SCLE and in 6% of those with idiopathic SCLE (OR 12·3, 95% CI 2·8-54·9; P = 0·001). Visceral manifestations were excluded in all patients with DI-SCLE. Anti-Ro/SSA antibodies were found in all but one patient with DI-SCLE and disappeared after resolution in 73% of cases. CONCLUSIONS: DI-SCLE differs from idiopathic SCLE by virtue of distinctive cutaneous features, particularly the widespread presentation and the frequent occurrence of malar rash and bullous, EM-like and vasculitic manifestations.


Assuntos
Lúpus Eritematoso Cutâneo/induzido quimicamente , Lúpus Eritematoso Cutâneo/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Diagnóstico Diferencial , Eritema Multiforme/patologia , Exantema/patologia , Feminino , Técnica Direta de Fluorescência para Anticorpo , Humanos , Masculino , Pessoa de Meia-Idade , Dermatopatias Vesiculobolhosas/patologia , Luz Solar/efeitos adversos , Vasculite/patologia
6.
Int J Immunopathol Pharmacol ; 24(2): 451-60, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21658319

Resumo

Amicrobial pustulosis of the folds (APF) is a rare cutaneous disease characterized by relapsing sterile pustules frequently associated with autoimmune disorders. Although APF pathophysiology is still undefined, scattered reports suggest involvement of neutrophils. The aim of the present study is to evaluate the role of the skin inflammatory infiltrate, selected multifunctional cytokines and effectors of tissue damage in APF and other neutrophilic dermatoses. We studied, by immunohistochemical methods, inflammatory cell markers (CD3, CD163, myeloperoxidase), cytokines (TNF-alpha, IL-8, IL-17), metalloproteinases (MMP-2, MMP-9) and vascular-endothelial-growth-factor (VEGF) in lesional skin from six patients with APF, 11 with pyoderma gangrenosum (PG), 7 with Sweet's syndrome, and in 20 normal skin samples. Immunoreactivities of CD3, CD163, myeloperoxidase, TNF-alpha, IL-8, IL-17, MMP-2, MMP-9 and VEGF were significantly higher in APF, PG and Sweet's syndrome than in controls (p=0.0001). IL-8 was more expressed in PG than in APF (P=0.002) and Sweet's syndrome (p=0.001). In APF, MMP-9 reactivity was higher than in Sweet's syndrome (p=0.035), but less intense than in PG (p=0.020). Our study supports the role of proinflammatory cytokines/chemokines and MMPs as important effectors for the tissue damage in APF similarly to classic neutrophilic dermatoses.


Assuntos
Citocinas/análise , Mediadores da Inflamação/análise , Metaloproteinase 2 da Matriz/análise , Metaloproteinase 9 da Matriz/análise , Neutrófilos/imunologia , Psoríase/imunologia , Pioderma Gangrenoso/imunologia , Pele/imunologia , Síndrome de Sweet/imunologia , Adolescente , Adulto , Idoso , Antígenos CD/análise , Antígenos de Diferenciação Mielomonocítica/análise , Biópsia , Complexo CD3/análise , Estudos de Casos e Controles , Feminino , Humanos , Imuno-Histoquímica , Imunofenotipagem , Interleucina-17/análise , Interleucina-8/análise , Masculino , Pessoa de Meia-Idade , Neutrófilos/enzimologia , Neutrófilos/patologia , Peroxidase/análise , Fenótipo , Psoríase/enzimologia , Psoríase/patologia , Pioderma Gangrenoso/enzimologia , Pioderma Gangrenoso/patologia , Receptores de Superfície Celular/análise , Pele/enzimologia , Pele/patologia , Síndrome de Sweet/enzimologia , Síndrome de Sweet/patologia , Fator de Necrose Tumoral alfa/análise , Fator A de Crescimento do Endotélio Vascular/análise , Adulto Jovem
7.
J Phys Chem A ; 115(25): 7161-8, 2011 Jun 30.
Artigo em Inglês | MEDLINE | ID: mdl-21526863

Resumo

Here, we show that the stoichiometry and, consequently, the chemical activity toward hydroxylation of MgO(100) films grown by reactive deposition on Ag(100) strongly depend on the O(2) partial pressure during film growth. Oxygen-deficient films undergo dramatic relative oxygen uptake either by exposure to a partial pressure of water vapor or by aging in vacuum for a sufficiently long time. Conversely, on stoichiometric monolayer MgO islands, photoemission analysis of the O 1s level and scanning tunneling microscopy images are consistent with the prediction that dissociative adsorption of water occurs only at the borders of the islands.

8.
Minerva Chir ; 66(6): 527-35, 2011 Dec.
Artigo em Italiano | MEDLINE | ID: mdl-22233659

Resumo

AIM: The aim of this study was to evaluate technical feasibility, oncological safety and short-term clinical results of robotic rectal resection for cancer. METHODS: From January 2008 to July 2010, 46 patients (27 males and 19 females, median age 69 years, median BMI 24.6 kg/m2) with histologically-proven adenocarcinoma of medium and distal rectum were enrolled in a prospective database. Preoperative assessment was performed with colonoscopy with biopsies, thoraco-abdominal CT scan, pelvic MRI and endorectal-ultrasound (ERUS). In the case of locally advanced non metastatic disease (T3/4 or N1/2), patients received preoperative radiotherapy (45 Grays in 5 weeks) and chemotherapy (oral Capecitabine). The robotic system was a four-arms Da Vinci® (Intuitive Surgical, Sunnyvale, CA, USA); arms position is not modified during the entire surgical procedure. RESULTS: Twenty-five patients received a preoperative radio-chemotherapy. Surgical procedure was an abdomino-perineal amputation in nine patients and an anterior resection in the remaining 37, with temporary ileostomy in 16 cases and a laparoscopic mobilization of splenic flexure in 25. Median operative time was 251 minutes, median time of first bowel movements 1.7 days and median hospital stay 6.7 days. Major complications requiring reoperation verified in 2 patients, while overall complication rate is 15.2%. Median number of harvested lymph nodes per patient was 18; median distance of the tumour from distal resection margin was 2 cm; distance of the tumour from circumferential margin was superior to 1 mm in all of the patients. At a median follow up of 11 months, all patients are alive and disease-free. CONCLUSION: Robotic rectal resection is a feasible technique which can provide good oncological and short-term clinical results.


Assuntos
Adenocarcinoma/cirurgia , Laparoscopia , Neoplasias Retais/cirurgia , Robótica , Adenocarcinoma/tratamento farmacológico , Adenocarcinoma/patologia , Adenocarcinoma/radioterapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Quimioterapia Adjuvante , Estudos de Viabilidade , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Cuidados Pré-Operatórios , Estudos Prospectivos , Radioterapia Adjuvante , Neoplasias Retais/tratamento farmacológico , Neoplasias Retais/patologia , Neoplasias Retais/radioterapia , Resultado do Tratamento
9.
Braz J Biol ; 79(3): 527-532, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30379241

Resumo

From the advancement of tilapia production in recent years, diets are sought that allow the maximum growth, improving health and fish quality. In this study growth, biochemical, hematological and oxidative parameters were evaluated of tilapia fed with increasing selenium levels: 0.53, 0.86, 1.04 and 1.22 mg kg-1. It was used 400 juveniles (initial weight = 36.51 ± 10.88 g), fed for six weeks. There was no effect of selenium on fish growth, biochemical and hematological parameters. In the oxidative parameters, there was an increase in non-protein thiols and a decrease in malondialdehyde levels, evidencing antioxidant effects of selenium. The diet selenium levels above 0.86 mg kg-1 improved the antioxidant system and does not affect to biochemical, hematological and growth parameters of tilapia juveniles.


Assuntos
Antioxidantes/metabolismo , Ciclídeos/crescimento & desenvolvimento , Ciclídeos/metabolismo , Selênio/metabolismo , Ração Animal/análise , Animais , Antioxidantes/administração & dosagem , Dieta/veterinária , Suplementos Nutricionais/análise , Selênio/administração & dosagem
10.
IEEE J Biomed Health Inform ; 20(3): 802-809, 2016 05.
Artigo em Inglês | MEDLINE | ID: mdl-26173223

Resumo

Mathematical modeling of tumor response to radiotherapy has the potential of enhancing the quality of the treatment plan, which can be even tailored on an individual basis. Lack of extensive in vivo validation has prevented, however, reliable clinical translation of modeling outcomes. Image-guided radiotherapy is a consolidated treatment modality based on computed tomographic (CT) imaging for tumor delineation and volumetric cone beam CT data for periodic checks during treatment. In this study, a macroscopic model of tumor growth and radiation response is proposed, being able to adapt along the treatment course as volumetric tumor data become available. Model parameter learning was based on cone beam CT images in 13 uterine cervical cancer patients, subdivided into three groups (G1, G2, G3) according to tumor type and treatment. Three group-specific parameter sets (PS1, PS2, and PS3) on one general parameter set (PSa) were applied. The corresponding average model fitting errors were 14%, 18%, 13%, and 21%, respectively. The model adaptation testing was performed using volume data of three patients, other than the ones involved in the parameter learning. The extrapolation performance of the general model was improved, while comparable prediction errors were found for the group-specific approach. This suggests that an online parameter tuning can overcome the limitations of a suboptimal patient stratification, which appeared otherwise a critical issue.


Assuntos
Tomografia Computadorizada de Feixe Cônico/métodos , Modelos Biológicos , Radioterapia Guiada por Imagem , Neoplasias do Colo do Útero/diagnóstico por imagem , Neoplasias do Colo do Útero/radioterapia , Progressão da Doença , Feminino , Humanos , Modelos Estatísticos , Estudos Retrospectivos , Resultado do Tratamento
11.
Eur J Surg Oncol ; 42(10): 1519-25, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-27241922

Resumo

BACKGROUND: To compare patterns and rates of early and late complications, and survival outcome in FIGO stage III cervical cancer patients underwent to radical hysterectomy after chemo-radiation (CT-RT) vs. chemo-radiation alone. METHODS: Between May 1996 and April 2013 150 FIGO stage III cervical cancer patients were treated. We divide patients according to type of treatment: 77 were submitted to standard treatment (Group A), and 73 to completion hysterectomy after chemo-radiation (Group B). RESULTS: The baseline characteristics of the 2 groups were superimposable. We observed lower intra-operative and treatment-related early urinary and gastro-intestinal complications in Group B with respect to Group A (p < 0.001). Vascular complications were registered only in Group B (p < 0.001). We found a significantly higher rate of local recurrences in the Group A than in the Group B (p < 0.002). We registered 29 deaths in the Group A and 22 in the Group B (p = 0.021). The 3-years disease-free survival rate in the Group A and in the Group B was 62.9% and 68.3%, respectively (p = 0.686), and the 3-years overall survival rate in the Group A and in the Group B was 63.2% and 67.7%, respectively (p = 0.675). CONCLUSIONS: This study confirms that radical hysterectomy after CT-RT is an effective therapeutic approach for advanced cervical cancer. Further prospective and randomized studies should be performed in order to solve the question about the standard approach, and how the different pattern of complication could impact on the quality of life.


Assuntos
Braquiterapia , Quimiorradioterapia , Histerectomia , Neoplasias do Colo do Útero/terapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Braquiterapia/efeitos adversos , Quimiorradioterapia/efeitos adversos , Terapia Combinada , Feminino , Humanos , Histerectomia/efeitos adversos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Estudos Retrospectivos , Neoplasias do Colo do Útero/mortalidade , Neoplasias do Colo do Útero/patologia
12.
Breast ; 14(6): 527-31, 2005 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-16226028

Resumo

The preservation of the nipple areola complex (NAC) could improve the quality of life in cases of mastectomy. A novel radiosurgical treatment combining subcutaneous mastectomy with intraoperative radiotherapy is proposed. Three hundred nipple-sparing mastectomies (NSM) were performed. Invasive (58%) and in situ (42%) carcinomas were included. Clinical complications, aesthetic results, oncological and psychological results were recorded. The NAC necrosed totally in 10 cases and partially in 29 and it was removed in 12. Nine infections (3%) were observed and 10 prostheses removed. Good results were rated by 82.3% of the patients and by 84.8% of the surgeons. In 7.5% a radiodystrophy was observed. The sensitivity of the NAC recovered partially in 48%. Two local recurrences occurred outside the radiated field. Overall, we observed three metastases and no deaths. Sixty-eight of the patients were satisfied with their reconstructed breast and 85.5% were satisfied having preserved the NAC.


Assuntos
Neoplasias da Mama/cirurgia , Mastectomia Segmentar/estatística & dados numéricos , Mamilos/cirurgia , Adulto , Idoso , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/patologia , Feminino , Humanos , Itália/epidemiologia , Mastectomia Segmentar/métodos , Pessoa de Meia-Idade , Invasividade Neoplásica
13.
Psychoneuroendocrinology ; 14(1-2): 103-11, 1989.
Artigo em Inglês | MEDLINE | ID: mdl-2543996

Resumo

In the present study we evaluated whether naltrexone administration could stimulate sexual function in 30 male patients, ages 25 to 50 years, with idiopathic impotence of at least one year's duration and not of organic etiology. The patients received naltrexone (50 mg/day) or placebo, on a random basis for two weeks. Sexual performance, expressed as the number of full coitus/week, was assessed before (time 0) and during (on days 7 and 15) each treatment. The naltrexone therapy significantly increased the number of successful coitus compared to placebo after 7 and 15 days of treatment: improvement of sexual performance was evident in 11 out of the 15 treated patients. All the patients experienced a significant increase in morning and spontaneous full penile erections/week. No significant side effects were reported. Endocrine studies revealed no significant modification of plasma LH, FSH or testosterone by naltrexone, suggesting that the positive effect of the drug on sexual behavior was exerted at a central level. A two-month follow-up, at which time patients were off treatment, erectile capacity had returned to baseline in 10 patients, while five reported complete recovery of their sexual ability. We hypothesize that an alteration in central opioid tone is present in idiopathic impotence and is involved in the impairment of sexual behavior.


Assuntos
Endorfinas/sangue , Disfunção Erétil/tratamento farmacológico , Naltrexona/administração & dosagem , Ereção Peniana/efeitos dos fármacos , Adulto , Encéfalo/efeitos dos fármacos , Ensaios Clínicos como Assunto , Disfunção Erétil/sangue , Hormônio Foliculoestimulante/sangue , Humanos , Hormônio Luteinizante/sangue , Masculino , Pessoa de Meia-Idade , Receptores Opioides/efeitos dos fármacos , Testosterona/sangue
14.
J Steroid Biochem Mol Biol ; 37(3): 411-9, 1990 Nov 20.
Artigo em Inglês | MEDLINE | ID: mdl-1979499

Resumo

Dopamine (DA) and serotonin (5-HT) are the neurotransmitters most directly involved in sexual activity. DA plays a stimulatory role while 5-HT has an inhibitory effect. The two monoaminergic systems modulate the secretion of many hormones (GnRH, LH, testosterone, prolactin and endorphins) involved in sexual functional capacity. Furthermore, hormones influence synthesis and storage of brain neurotransmitters. Impotence can often be associated to clinical depression and altered neurotransmitter function. Moreover, stress represents an unbalance between various neurotransmitter systems and can induce impotence especially when disorders of the endorphinic system are present. Replacement therapy is based upon the understanding of these basic concepts. Impotence due to an underlying depressive illness must be treated with dopaminergic antidepressant drugs; while in stressful conditions a good response to the naloxone test is the preliminary criterion to subsequent naltrexone treatment. When a hormonal deficiency has been proved, the hormone replacement therapy is of course highly effective (gonadotropins in hypogonadotropic syndromes, testosterone in aging, etc.). Finally, idiopathic impotence could be treated by DA agonist and/or 5-HT antagonist drugs either alone or better yet in association with psychotherapy.


Assuntos
Androgênios/fisiologia , Endorfinas/fisiologia , Neurotransmissores/fisiologia , Disfunções Sexuais Fisiológicas/tratamento farmacológico , Adulto , Animais , Dopamina/fisiologia , Glândulas Endócrinas/fisiologia , Glândulas Endócrinas/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Sistema Nervoso/fisiopatologia , Fenômenos Fisiológicos do Sistema Nervoso , Serotonina/fisiologia , Disfunções Sexuais Fisiológicas/fisiopatologia
15.
Breast ; 12(6): 483-90, 2003 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-14659125

Resumo

Local recurrences after breast-conserving surgery occur mostly in the quadrant harbouring primary carcinoma. The main objective of postoperative radiotherapy should be the sterilisation of residual cancer cells in the operative area while irradiation of the whole breast may be avoided. We have developed a new technique of intraoperative radiotherapy of a breast quadrant after the removal of the primary carcinoma (ELIOT). A mobile linear accelerator with a robotic arm is utilised delivering electron beams able to produce energies from 3 to 9 MeV. Different dose levels were tested from 10 to 21 Gy without important side effects. A randomized trial is currently ongoing in order to compare conventional irradiation and ELIOT. More than 400 patients have been enrolled. In addition a new approach for nipple and areola complex conservation, including ELIOT, is under investigation.


Assuntos
Neoplasias da Mama/radioterapia , Neoplasias da Mama/cirurgia , Feminino , Humanos , Período Intraoperatório , Mastectomia Segmentar/métodos , Recidiva Local de Neoplasia/prevenção & controle , Aceleradores de Partículas , Garantia da Qualidade dos Cuidados de Saúde , Dosagem Radioterapêutica , Radioterapia Adjuvante/métodos , Robótica
16.
Physiol Behav ; 48(5): 681-3, 1990 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-1964503

Resumo

In seventy-two patients affected by hyperphagic obesity and forty age-matched, normal weight volunteers we performed a psychological assessment, through various mental tests, and evaluated the beta-endorphin (B-Ep), ACTH and cortisol circulating levels, in basal condition and following an overnight short dexamethasone suppression test (DST). The hormones were measured by radioimmunoassay either directly in the serum (cortisol) and the plasma (ACTH), or after affinity gel column chromatography (B-Ep). In obese subjects B-Ep levels in basal conditions were four times greater than in normal weight controls and showed significantly less reduction after DST. ACTH and cortisol levels, in contrast, were in the normal range and were suppressed following dexamethasone as was also true in the control group. Psychological evaluation on M.M.P.I. (Minnesota Multiphasic Personality Inventory) revealed a trend toward hypochondria, depression, hysterias, psychoasthenia and schizophrenia. However, no significant correlation has been found between M.M.P.I. clinical scale scores and circulating levels of B-Ep and cortisol either in basal conditions or after DST. In conclusion, these data do not support the hypothesis that abnormalities of the hypothalamus-pituitary-adrenal axis in hyperphagic obesity are related to affective disorders.


Assuntos
Sintomas Afetivos/sangue , Endorfinas/sangue , Obesidade/sangue , Hormônio Adrenocorticotrópico/sangue , Adulto , Sintomas Afetivos/psicologia , Ansiedade/sangue , Ansiedade/psicologia , Depressão/sangue , Depressão/psicologia , Dexametasona , Feminino , Humanos , Hidrocortisona/sangue , Hiperfagia/sangue , Hiperfagia/psicologia , Masculino , Pessoa de Meia-Idade , Obesidade/psicologia , Testes de Personalidade , beta-Endorfina/sangue
17.
Physiol Behav ; 36(5): 937-40, 1986.
Artigo em Inglês | MEDLINE | ID: mdl-3012610

Resumo

Eight obese patients (exceeding ideal body weight by 50% or more) with no endocrinological or metabolic disorders and 8 healthy, age-matched, normal-weight volunteers were submitted to an overnight short dexamethasone (DXM) suppression test and to a psychological assessment through various psychometric scales. Plasma B-Endorphin (B-EP), B-Lipotropin (B-LPH), ACTH and cortisol concentrations were evaluated in basal conditions, as well as 9 and 17 hours after late night administration of 1 mg DXM in both groups. All hormones were measured by radioimmunoassay, either directly in the plasma (ACTH and cortisol) or after silicic acid extraction and Sephadex G-75 column chromatography (B-LPH and B-EP). In obese patients, plasma B-EP levels in basal conditions were three times higher than in normal weight controls and remained unaltered by DXM suppression. ACTH and B-LPH, in contrast, were within the normal range and were significantly reduced by DXM. In 3 of the 8 patients, plasma cortisol concentrations at 17 hours post-DXM were greater than 50 ng/ml indicating an early escape from the suppression. Psychometric evaluations revealed a prevalence of depressive personality in obese patients. These data indicate an hypersecretion of B-EP in obese patients, which is only partially dependent on hypothalamic control.


Assuntos
Afeto , Endorfinas/sangue , Obesidade/sangue , Hormônio Adrenocorticotrópico/sangue , Adulto , Transtorno Depressivo/fisiopatologia , Dexametasona , Feminino , Humanos , Hidrocortisona/sangue , Sistema Hipotálamo-Hipofisário/fisiopatologia , Masculino , Obesidade/fisiopatologia , Obesidade/psicologia , Sistema Hipófise-Suprarrenal/fisiopatologia , beta-Endorfina , beta-Lipotropina/sangue
18.
J Infect ; 7(2): 130-3, 1983 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-6315827

Resumo

Four methods for detecting rotaviruses (latex agglutination, electron microscopy, immunofluorescence and ELISA) have been compared on 57 faecal samples from children with acute diarrhoea. Complete agreement among the four techniques was found in 38 samples. One sample was positive by ELISA and latex agglutination but negative by the other two. For all the other samples there was agreement among three of the techniques only. In a blocking ELISA test, samples positive by ELISA only, turned out to be falsely positive. Assuming true positive or negative for those samples for which at least three techniques were in agreement, electron microscopy, ELISA and latex agglutination were more sensitive (96 per cent) than immunofluorescence (84 per cent). Electron microscopy was the most specific (96.4 per cent), followed by immunofluorescence (92.9 per cent), ELISA (89.4 per cent) and latex agglutination (85.9 per cent).


Assuntos
Fezes/microbiologia , Testes de Fixação do Látex/métodos , Rotavirus/isolamento & purificação , Diarreia/microbiologia , Ensaio de Imunoadsorção Enzimática , Imunofluorescência , Humanos , Lactente , Microscopia Eletrônica , Infecções por Rotavirus/microbiologia
19.
Arch Oral Biol ; 43(5): 379-87, 1998 May.
Artigo em Inglês | MEDLINE | ID: mdl-9681113

Resumo

With the purpose of studying the effect of diphenylhydantoin on mandibular skeletal-unit growth, 28 male Wistar rats weighing 60.0 +/- 0.8 g were assigned to five different groups. One group received saline serving as normal controls; three others were injected intra peritoneally once daily with either 25, 50 or 100 mg/kg body wt diphenylhydantoin for 30 days; the fifth group was put on a restricted diet (20% below normal intake) for the same time. On day 31, the rats were killed by ether overdose and their mandibles were evaluated for differential skeletal-unit growth. Body-weight gain of diphenylhydantoin-injected rats was up to 24% less than controls, regardless of drug dose. Diet-restricted rats showed a similar difference. The amount of food consumed by diphenylhydantoin-injected rats was 21% less than that consumed by controls, regardless of drug doses. The concentration of alkaline phosphatase and haemoglobin in rats treated with 50 or 100 mg/kg diphenylhydantoin was lower than in controls and diet-restricted rats. However, plasma urea and total calcium were similar in diphenylhydantoin-treated rats and controls. Mean appetite quotient, and the efficiency of protein and energy utilization, did not appear to change in response to the particular diphenylhydantoin dose or to the restricted diet. Mandibular dimensions of rats injected with 25 or 50 mg/kg diphenylhydantoin were not statistically different from those of the control and diet-restricted groups. With using 100 mg/kg diphenylhydantoin for 30 days, the growth of symphysial and basal heights, condylar and angular lengths and condylar width was significantly less than in the control and diet-restricted groups. The remaining mandibular skeletal units did not exhibit significant differences from those of control and diet-restricted rats. The disharmonious growth of the mandible does not appear to depend on suboptimal energy intake, efficiency of protein-energy utilization, renal failure and anaemia, but would suggest a differential toxicological effect of diphenylhydantoin on the osseous component and/or its associated non-skeletal tissues.


Assuntos
Desenvolvimento Ósseo/efeitos dos fármacos , Mandíbula/efeitos dos fármacos , Mandíbula/crescimento & desenvolvimento , Fenitoína/toxicidade , Fosfatase Alcalina/sangue , Animais , Ingestão de Energia , Metabolismo Energético , Comportamento Alimentar/efeitos dos fármacos , Privação de Alimentos , Hemoglobinas/análise , Masculino , Côndilo Mandibular/efeitos dos fármacos , Côndilo Mandibular/crescimento & desenvolvimento , Proteínas/metabolismo , Ratos , Ratos Wistar , Aumento de Peso/efeitos dos fármacos
20.
Int J Pediatr Otorhinolaryngol ; 2(4): 347-55, 1980 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-7188072

Resumo

A retrospective survey has been carried out on audiological function in 46 congenital hypothyroid cases; mental and physical development were also assessed, as well as the adequacy of substitutive therapy. Using traditional audiometry it was found that 50% of the congenital hypothyroid patients were hypocusic. Severe and profound hearing loss (5 cases) was found in the group of hypothyroid patients with dyshormonogenesis, whereas only one-third of patients with thyroid agenesis presented a mild or moderate hearing loss not related to the time of diagnosis and treatment. The hearing loss was twice as frequent in the patients with clinical hypothyroidism. Using electrophysiological techniques, the early or slow potentials were comparable between hypocusic or normocusic patients; however a longer latency of the slow vertex responses was observed in the hypothyroid group as compared to the normal population. The mean estimated I.Q. was about 2 standard deviations below the average; however 30% of subjects had normal or above normal intellectual level, this percentage rises to 55% if only patients below 16 years are considered. The height was significantly shorter only in the late treated patients (1 year). No correlations were found among audiological and psychological variables, nor between these variables and height. All patients were on desiccated thyroid, but therapy was inadequate in 26% of cases and subclinical hypothyroidism was found in 33% of cases.


Assuntos
Audiometria , Hipotireoidismo Congênito , Adolescente , Adulto , Audiometria de Resposta Evocada , Audiometria de Tons Puros , Criança , Eletrofisiologia , Perda Auditiva Neurossensorial/fisiopatologia , Humanos , Hipotireoidismo/fisiopatologia , Testes de Inteligência , Estudos Retrospectivos
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