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1.
Eur Ann Otorhinolaryngol Head Neck Dis ; 140(6): 289-295, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37926654

RESUMO

Progress in skull-base endoscopic surgery has improved our knowledge of olfactory cleft (OC) anatomy. This article presents a review of current knowledge concerning the OC roof: descriptive anatomy, radiological exploration, and endoscopic observation. The OC is a narrow area in the most superior part of the nasal cavity. Its roof is the thinnest structure separating the nasal cavities from the brain; it comprises three superimposed tissues: nasal mucosa, ethmoid cribriform plate (ECP), and dura mater. The ECP comprises the anterior ECP containing the ethmoidal slit (ES) medially and the cribroethmoidal foramen (CEF) laterally; and the posterior ECP, comprising the olfactory foramina. The OC roof is bordered anteriorly by the nasal bone roof, laterally by the lateral ethmoid masses, and posteriorly by the jugum and anterior wall of the sphenoid sinuses. Imaging is crucial for analyzing this wall, providing precise detailed information on conformation and anatomic relations with adjacent structures such as the anterior ethmoidal artery. Understanding OC roof anatomy and correct interpretation of imaging are essential for safety in present-day functional endoscopic sinus surgery and anterior skull-base oncologic surgery.


Assuntos
Osso Etmoide , Cavidade Nasal , Humanos , Osso Etmoide/diagnóstico por imagem , Osso Etmoide/cirurgia , Osso Etmoide/anatomia & histologia , Cavidade Nasal/diagnóstico por imagem , Cavidade Nasal/cirurgia , Endoscopia/métodos , Seio Esfenoidal , Procedimentos Neurocirúrgicos/métodos , Base do Crânio/diagnóstico por imagem , Base do Crânio/cirurgia
2.
Support Care Cancer ; 31(9): 535, 2023 Aug 24.
Artigo em Inglês | MEDLINE | ID: mdl-37615815

RESUMO

PURPOSE: Sexual health (SH) is an emerging concern in the assessment of quality of life in patients surviving head and neck cancer (HNC). Using data from the French National Prospective VICAN Survey, this study aimed to assess SH deterioration five years after HNC diagnosis and related factors. METHODS: Using univariate and multivariate analyses were performed in the 241 HNC survivors. We studied the factors associated between the sexuality and intimate life of these patients with demographic and medical data from the national epidemiological survey VICAN 5. RESULTS: Sexuality and body image were altered in 78.8% for men and 79.2% for women. This alteration in sexual quality of life affects both men and women. Dissatisfaction with the frequency of sexual intercourse was associated with being treated with radiotherapy (p=0.024), as well as decrease of sexual desire in patients treated with chemotherapy (p=0.044). Fatigue (p=0.002), impaired physical health (p=0.049), and high disease stage (p=0.001) remained significantly associated, after multivariate analysis, with decreased sexual desire. Among these 3 factors negatively influencing sexual quality of life, two are treatable with appropriate management. CONCLUSION: Five years after the diagnosis of HNC, a decrease in sexuality and body image are frequent and significantly impact the quality of life of survivors. These observations imply an adaptation of the management of the professionals involved.


Assuntos
Neoplasias de Cabeça e Pescoço , Saúde Sexual , Masculino , Humanos , Feminino , Estudos Prospectivos , Qualidade de Vida , Comportamento Sexual , Neoplasias de Cabeça e Pescoço/epidemiologia , Neoplasias de Cabeça e Pescoço/terapia
3.
Eur Ann Otorhinolaryngol Head Neck Dis ; 140(3): 121-126, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-37142505

RESUMO

OBJECTIVES: Analysis of the quality of sexual life after total laryngectomy (TL) for cancer. MATERIAL AND METHODS: The Cochrane, PubMed, Embase, ClinicalKey and Science Direct databases were searched using the keywords: "total laryngectomy, sexual function, sexual behavior, sexual complications, sexual dysfunction, sexuality, intimacy". The abstracts of 69 articles were read by two of the authors and 24 articles were selected. The main endpoint was the impact of impairment of quality of sexual life after TL for cancer and the methods used to assess this. The secondary endpoints were the type of sexual impairment, associated variables and their treatment. RESULTS: The study population consisted of 1511 TL patients aged 21 to 90 years, with a male/female sex ratio of 7.49. One of the 7 validated Likert scales was used in 79% of the articles to evaluate impairment of sexual quality of life. Impaired quality of sexual life was reported by 47% of patients on average (range, 5-90%). Erectile and ejaculatory function and ejaculatory behavior of male patients decreased after TL. Other impairments comprised decreases in libido, frequency of sexual intercourse and satisfaction. Tracheostomy, advanced disease stage, young age and associated depression were factors for impairment. In all, 23% of patients reported lack of postoperative support in this area. CONCLUSION: The quality of sexual life is severely impacted by TL for cancer. The present data are a source of information and should be taken into account before carrying out TL. A common information tool needs to be developed. There is patient demand for improved management of sexuality.


Assuntos
Coito , Neoplasias Laríngeas , Humanos , Masculino , Feminino , Qualidade de Vida , Laringectomia/métodos , Comportamento Sexual , Neoplasias Laríngeas/cirurgia
4.
Appl Physiol Nutr Metab ; 47(5): 611-614, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35294842

RESUMO

Matched pre-during pandemic comparison (160 children) revealed a substantial reduction in physical activity (p < 0.001, rrb = 0.83), environmental participation (p = 0.046, rrb = 0.16), movement valuation (p < 0.001, rrb = 0.61), and parent perceptions of children's physical literacy (p < 0.001, rrb = 0.56). Examining physical activity trajectories, higher pre-pandemic physical literacy protected children from pandemic related activity decline. Emerging from the pandemic, interventions should address children's eroded belief in movement and consider physical literacy levels of children in individualizing movement opportunities for restoration of activity levels. Novelty: A substantial reduction in physical activity was associated with children who had lower physical literacy and resulted in reductions in children's valuation of movement.


Assuntos
COVID-19 , COVID-19/prevenção & controle , Criança , Exercício Físico , Humanos , Alfabetização , Pandemias/prevenção & controle , Pais
5.
7.
Eur Ann Otorhinolaryngol Head Neck Dis ; 138(2): 82-88, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32800716

RESUMO

OBJECTIVES: To assess the functional results of oromandibular reconstruction by free bone flap, in terms of swallowing, speech and esthetics. MATERIALS AND METHODS: A transverse multicenter study included 134 patients reconstructed by free bone flap between 1998 and 2016, with more than 6 months' follow-up, in 9 centers. A standardized questionnaire collected data on patients and treatment. Study endpoints comprised: weight loss, mouth opening, gastrostomy dependence, type of feeding, and DHI score. The impact of patient baseline characteristics on these functional criteria was explored by uni/multivariate analysis. RESULTS: Ninety of the 134 patients had cancer. Fibula flap was mainly used (80%). 94% of reconstructions were primary successes. 71% of patients had pre- or post-operative radiation therapy. 88% had less than 50% lingual resection. 97% recovered oral feeding. 89% had intelligible speech. 86% judged their esthetic appearance as good/average. 9% had dental prosthetic rehabilitation. Radiation therapy and extensive lingual resection significantly impacted swallowing function (P=0.04 and P=0.03, respectively). Radiation therapy and oropharyngeal extension significantly increased gastrostomy dependence (P=0.04 and P=0.02, respectively). CONCLUSION: Oromandibular reconstruction by free bone flap enabled return to oral feeding in most cases. More than 80% of patients were satisfied with their result in terms of speech and esthetics. However, the rate of dental rehabilitation was low and the rate of complications was high.


Assuntos
Retalhos de Tecido Biológico , Reconstrução Mandibular , Procedimentos de Cirurgia Plástica , Transplante Ósseo , Fíbula , Humanos , Fala
8.
BMC Public Health ; 20(1): 523, 2020 Apr 19.
Artigo em Inglês | MEDLINE | ID: mdl-32306943

RESUMO

BACKGROUND: Since young children spend approximately 30 h per week in early childcare centres (ECC), this setting is ideal to foster healthy behaviours. This study aimed to assess the effectiveness of the Healthy Start-Départ Santé (HSDS) randomized controlled trial in increasing physical activity (PA) levels and improving healthy eating and fundamental movement skills in preschoolers attending ECC. METHODS: Sixty-one ECC were randomly selected and allocated to either the usual practice (n = 30; n = 433 children) or intervention group (n = 31; n = 464 children). The HSDS intervention group was provided a 3-h on-site training for childcare educators which aimed to increase their knowledge and self-efficacy in promoting healthy eating, PA and development of fundamental movement skills in preschoolers. PA was measured during childcare hours for five consecutive days using the Actical accelerometer. Preschoolers' fundamental movement skills were assessed using the standard TGMD-II protocol and POMP scores. Food intake was evaluated using digital photography-assisted weighted plate waste at lunch, over two consecutive days. All data were collected prior to the HSDS intervention and again 9 months later. Mixed-effect models were used to analyse the effectiveness of the HSDS intervention on all outcome measures. RESULTS: Total number of children who provided valid data at baseline and endpoint for PA, food intake and fundamental movement skills were 259, 670 and 492, respectively. Children in the HSDS intervention group had, on average, a 3.33 greater point increase in their locomotor motor skills scores than children in the control group (ß = 3.33, p = 0.009). No significant differences in effects were observed for object control, PA and food intake. However, results demonstrated a marginal increase in portions of fruits and vegetables served in the intervention group compared to control group (ß = 0.06, p = 0.05). CONCLUSION: Of the 12 outcome variables investigated in this study, 10 were not different between the study groups and two of them (locomotor skills and vegetables and fruits servings) showed a significant improvement. This suggests that HSDS is an effective intervention for the promotion of some healthy behaviours among preschoolers attending ECC. TRIAL REGISTRATION: Clinical Trials NCT02375490. Registered on February 24, 2015; 77 retrospectively registered.


Assuntos
Creches , Dieta Saudável/métodos , Exercício Físico , Promoção da Saúde/métodos , Destreza Motora , Criança , Saúde da Criança , Pré-Escolar , Feminino , Comportamentos Relacionados com a Saúde , Humanos , Masculino , Avaliação de Programas e Projetos de Saúde
9.
Eur Ann Otorhinolaryngol Head Neck Dis ; 137(5): 371-375, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32291205

RESUMO

OBJECTIVE: To assess the feasibility in routine practice of postoperative chemoradiotherapy in head and neck squamous cell carcinoma (HNSCC) at high risk of recurrence. METHOD: A single-center retrospective study recruited all patients receiving postoperative cisplatin chemoradiotherapy for HNSCC at high risk of recurrence. The main endpoints were the rate of complete postoperative chemoradiotherapy and the impact of various clinical factors. Secondary endpoints comprised the impact of completion of therapy on survival and on acute and late toxicity. RESULTS: One hundred and six patients were included. 24.5% showed severe comorbidity. Chemoradiotherapy was complete in 61 patients (57.5%). Radiation therapy was interrupted for >3 days in 16 patients (15.1%). The 3rd concomitant cisplatin course could not be implemented in 34 patients (32.1%). Low pre-treatment glomerular filtration rate was significantly associated (p=0.003) with treatment interruption; >5% weight-loss during treatment showed suggestive association (p=0.026). Completion of treatment was not associated with any significant difference in overall survival (p=0.441) or progression-free survival (p=0.81). 14.9% of patients showed post-treatment kidney failure; there were 10 cases of osteoradionecrosis (9.4%). CONCLUSION: The rate of complete postoperative chemoradiotherapy was comparable to that reported in clinical trials, despite frequent comorbidity and poor nutritional status. Early nutritional support is a key factor for treatment under optimal conditions.


Assuntos
Antineoplásicos , Carcinoma de Células Escamosas , Neoplasias de Cabeça e Pescoço , Antineoplásicos/uso terapêutico , Carcinoma de Células Escamosas/tratamento farmacológico , Quimiorradioterapia , Estudos de Viabilidade , Neoplasias de Cabeça e Pescoço/tratamento farmacológico , Humanos , Recidiva Local de Neoplasia/terapia , Estudos Retrospectivos , Carcinoma de Células Escamosas de Cabeça e Pescoço/terapia
10.
Respir Med Res ; 76: 48-53, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31557688

RESUMO

Klippel-Trenaunay syndrome (KTS) is a congenital disorder characterized by cutaneous capillary malformations, soft tissue and bone hypertrophy, and multiple capillary, venous or lymphatic malformations. KTS is associated with recurrent thromboembolic events. We reported herein five cases of chronic thromboembolic pulmonary hypertension (CTEPH) associated with KTS (age minimum-maximum 26-50 years old, 3 males/2 females). Hemodynamics showed severe pulmonary hypertension (PH) with pulmonary vascular resistance ranging from 5.6 to 18.3 Wood units (WU), associated with marked clinical impairment (NYHA functional class III or IV in 4 patients). Computed tomography (CT) of the chest and pulmonary angiography confirmed proximal CTEPH accessible to surgical intervention in one patient and distal forms of CTEPH in 4 patients. Evolution after pulmonary endarterectomy showed hemodynamic normalization, while the patients with distal CTEPH had severe outcomes with 2 early deaths after PH diagnosis (44 and 35 months respectively). One patient with distal CTEPH was still alive 16 years after diagnosis on specific PH therapy and one was transplanted after 15 years because of right heart failure (death after 12 months). Histological analysis of the lung explants showed typical chronic thromboembolic material specific for CTEPH. In conclusion, KTS may be complicated by severe CTEPH requiring careful anticoagulation and multidisciplinary follow-up in expert centers to screen for disease potentially accessible to endarterectomy. In the modern management era of CTEPH, balloon pulmonary angioplasty will certainly be an interesting option in patients with inoperable disease.


Assuntos
Hipertensão Pulmonar/etiologia , Síndrome de Klippel-Trenaunay-Weber/complicações , Embolia Pulmonar/etiologia , Adulto , Doença Crônica , Feminino , Humanos , Hipertensão Pulmonar/diagnóstico , Síndrome de Klippel-Trenaunay-Weber/diagnóstico , Masculino , Pessoa de Meia-Idade , Embolia Pulmonar/diagnóstico , Tromboembolia/diagnóstico , Tromboembolia/etiologia
11.
Eur Ann Otorhinolaryngol Head Neck Dis ; 135(6): 443-447, 2018 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29934262

RESUMO

The endoscope and microscope can be used conjointly in certain sites, such as middle ear cholesteatoma or for resection of cerebellopontine angle tumours. Petrous apex tumours are classically accessed via a lateral otological approach, or, for the most anterior tumours, via an endonasal endoscopic approach. Surgical access via a lateral incision is limited inferiorly by the superior bulb of the internal jugular vein, medially by the labyrinth, facial nerve and internal auditory canal, superiorly by the dura mater, and laterally by the internal carotid artery. Via an anterior endonasal approach, the corridor formed by the internal carotid artery and the paraclival dura limits access to the posterior part of the petrous apex, restricting this approach to certain cholesterol granulomas or small cholesteatomas. None of these approaches, on its own, is sufficient in the case of an extensive petrous apex lesion. The objective of this technical note is to describe the combined microscopic/endoscopic approach comprising sequential use of the microscope and the endoscope via a lateral approach for the management of large petrous apex lesions.


Assuntos
Endoscopia/métodos , Microcirurgia/métodos , Osso Petroso/cirurgia , Humanos
12.
Eval Program Plann ; 68: 90-98, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29505965

RESUMO

BACKGROUND: The Healthy Start-Départ Santé intervention was developed to promote physical activity, gross motor skills and healthy eating among preschoolers attending childcare centers. This process evaluation aimed to report the reach, effectiveness, adoption, implementation and maintenance of the Healthy Start-Départ Santé intervention. METHODS: The RE-AIM framework was used to guide this process evaluation. Data were collected across 140 childcare centers who received the Healthy Start-Départ Santé intervention in the provinces of Saskatchewan and New Brunswick, Canada. Quantitative data were collected through director questionnaires at 10 months and 2 years after the initial training and analyzed using descriptive statistics. Qualitative data were collected throughout the intervention. RESULTS: The intervention was successful in reaching a large number of childcare centres and engaging both rural and urban communities across Saskatchewan and New Brunswick. Centres reported increasing opportunities for physical activity and healthy eating, which were generally low-cost, easy and quick to implement. However, these changes were rarely transformed into formal written policies. A total of 87% of centers reported using the physical activity resource and 68% using the nutrition resource on a weekly basis. Implementation fidelity of the initial training was high. Of those centers who received the initial training, 75% participated in the mid-point booster session training. Two year post-implementation questionnaires indicated that 47% of centers were still using the Active Play Equipment kit, while 42% were still using the physical activity resource and 37% were still using the nutrition resource. Key challenges to implementation and sustainability identified during the evaluation were consistent among all of the REAIM elements. These challenges included lack of time, lack of support from childcare staff and low parental engagement. CONCLUSIONS: Findings from this study suggest the implementation of Healthy Start-Départ Santé may be improved further by addressing resistance to change and varied levels of engagement among childcare staff. In addition, further work is needed to provide parents with opportunities to engage in HSDS with their children.


Assuntos
Creches/organização & administração , Dieta Saudável , Exercício Físico , Promoção da Saúde/organização & administração , Destreza Motora , Canadá , Pré-Escolar , Humanos , Avaliação de Programas e Projetos de Saúde , População Rural
13.
Rev Mal Respir ; 35(2): 160-170, 2018 Feb.
Artigo em Francês | MEDLINE | ID: mdl-29501213

RESUMO

Pulmonary veno-occlusive disease (PVOD) is a rare form of pulmonary hypertension (PH) characterized by preferential remodelling of pulmonary venules and angioproliferation. PVOD term includes idiopathic, heritable (biallelic mutations of EIF2AK4 gene), drugs and toxins induced (alkylating agents, organic solvents) and connectivite-associated forms (especially systemic-sclerosis associated form). PVOD and pulmonary arterial hypertension (PAH) share a similar clinical presentation. Lung biopsy is contraindicated in PVOD due to high risk of life-threatening bleeding. A noninvasive diagnostic approach, including oxygen parameters, low diffusing capacity for carbon monoxide and characteristic signs on high-resolution computed tomography of the chest, is used to support a diagnosis of PVOD. PVOD prognosis is worse than other forms of PAH. There is no evidence-based medical therapy for PVOD and life-threatening pulmonary edema may occur following PAH targeted therapy in PVOD. Lung transplantation remains the preferred definitive therapy for eligible patients.


Assuntos
Pneumopatia Veno-Oclusiva , Animais , Diagnóstico por Imagem/métodos , Modelos Animais de Doenças , Humanos , Pneumopatia Veno-Oclusiva/diagnóstico , Pneumopatia Veno-Oclusiva/epidemiologia , Pneumopatia Veno-Oclusiva/terapia , Doenças Raras/diagnóstico , Doenças Raras/epidemiologia , Doenças Raras/terapia , Testes de Função Respiratória/métodos , Fatores de Risco
14.
BMJ Open ; 7(5): e013657, 2017 05 30.
Artigo em Inglês | MEDLINE | ID: mdl-28559455

RESUMO

INTRODUCTION: Childcare educators may be role models for healthy eating and physical activity (PA) behaviours among young children. This study aimed to identify which childcare educators' practices are associated with preschoolers' dietary intake and PA levels. METHODS: This cross-sectional analysis included 723 preschoolers from 50 randomly selected childcare centres in two Canadian provinces. All data were collected in the fall of 2013 and 2014 and analysed in the fall of 2015. PA was assessed using Actical accelerometers during childcare hours for 5 consecutive days. Children's dietary intake was measured at lunch on 2 consecutive days using weighed plate waste and digital photography. Childcare educators' nutrition practices (modelling, nutrition education, satiety recognition, verbal encouragement and not using food as rewards) and PA practices (informal and formal PA promotion) were assessed by direct observation over the course of 2 days, using the Nutrition and Physical Activity Self-Assessment for Child Care tool. Associations between educators' practices and preschoolers' PA and dietary intake were examined using multilevel linear regressions. RESULTS: Overall, modelling of healthy eating was positively associated with children's intake of sugar (ß=0.141, 95% CI 0.03 to 0.27), while calorie (ß=-0.456, 95% CI -1.46 to -0.02) and fibre intake (ß=-0.066, 95% CI -0.12 to -0.01) were negatively associated with providing nutrition education. Not using food as rewards was also negatively associated with fat intake (ß=-0.144, 95% CI -0.52 to -0.002). None of the educators' PA practices were associated with children's participation in PA. CONCLUSIONS: Modelling healthy eating, providing nutrition education and not using food as rewards are associated with children's dietary intake at lunch in childcare centres, highlighting the role that educators play in shaping preschoolers' eating behaviours. Although PA practices were not associated with children's PA levels, there is a need to reduce sedentary time in childcare centres.


Assuntos
Dieta Saudável , Exercício Físico , Docentes , Comportamentos Relacionados com a Saúde , Educação em Saúde , Promoção da Saúde , Acelerometria , Canadá , Creches , Pré-Escolar , Estudos Transversais , Fibras na Dieta , Açúcares da Dieta , Ingestão de Energia , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Masculino , Comportamento Sedentário
15.
Prev Med ; 97: 33-39, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28087466

RESUMO

Preschoolers observe and imitate the behaviors of those who are similar to them. Therefore, peers may be role models for preschoolers' dietary intake and physical activity in childcare centers. This study examined whether peers' behaviors predict change in preschoolers' dietary intake and physical activity in childcare centers over 9months. A total of 238 preschoolers (3 to 5years old) from 23 childcare centers in two Canadian provinces provided data at the beginning (October 2013 and 2014) and the end (June 2014 and 2015) of a 9-month period for this longitudinal study. Dietary intake was collected at lunch using weighed plate waste and digital photography on two consecutive weekdays. Physical activity was assessed using accelerometers over five days. Multilevel linear regressions were used to estimate the influence of peers' behaviors on preschoolers' change in dietary intake and physical activity over 9months. Results showed that preschoolers whose dietary intake or physical activity level deviated the most from those of their peers at the beginning of the year demonstrated greater change in their intakes and activity levels over 9months, which enabled them to become more similar to their peers (all ß 95% CI ranged from -0.835 to -0.074). This study suggests that preschoolers' dietary intake and physical activity may be influenced by the behaviors of their peers in childcare centers. Since peers could play an important role in promoting healthy eating behaviors and physical activity in childcare centers, future studies should test interventions based on positive role modeling by children.


Assuntos
Comportamento Infantil/psicologia , Creches , Dieta , Exercício Físico/fisiologia , Grupo Associado , Acelerometria/métodos , Canadá , Cuidado da Criança , Pré-Escolar , Feminino , Humanos , Estudos Longitudinais , Masculino
16.
Rev Mal Respir ; 33(6): 460-73, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26868668

RESUMO

INTRODUCTION: Type 1 neurofibromatosis is one of the most common genetic diseases, with an incidence of 1/3500 live births. Its diagnosis primarily relies on the clinical features of the condition. CURRENT KNOWLEDGE: The life expectancy of these patients is reduced by 10 years, on average, compared to the general population. Type 1 neurofibromatosis has been shown to increase the risk of various types of neoplasia, primarily those affecting the neural crest. In addition, interstitial lung disease, lung cancer, and pulmonary hypertension have been observed during the third or the fourth decade of an adult's life. PERSPECTIVES: There are only few case reports available that address the pulmonary complications of neurofibromatosis type 1. It is thus crucial to fully understand this rare disease and its potential complications in order to allow for early diagnosis so we are able to improve the quality of life and survival of those suffering from the condition. CONCLUSIONS: The pulmonary complications of type 1 neurofibromatosis can be severe and life-threatening. Patients with this condition should thus undergo regular clinical visits and examinations to allow pulmonary complications to be detected and treatment to be initiated as early as possible.


Assuntos
Pneumopatias/etiologia , Neurofibromatose 1/complicações , Humanos , Hipertensão Pulmonar/diagnóstico , Hipertensão Pulmonar/etiologia , Pneumopatias/diagnóstico , Doenças Pulmonares Intersticiais/diagnóstico , Doenças Pulmonares Intersticiais/etiologia , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/etiologia , Neurofibromatose 1/diagnóstico , Neurofibromatose 1/genética , Doenças Raras
17.
PLoS One ; 10(6): e0131940, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26121334

RESUMO

OBJECTIVE: Pulmonary artery smooth muscle cells (PA-SMCs) in pulmonary arterial hypertension (PAH) show similarities to cancer cells. Due to the growth-suppressive and pro-apoptotic effects of p53 and its inactivation in cancer, we hypothesized that the p53 pathway could be altered in PAH. We therefore explored the involvement of p53 in the monocrotaline (MCT) rat model of pulmonary hypertension (PH) and the pathophysiological consequences of p53 inactivation in response to animal treatment with pifithrin-α (PFT, an inhibitor of p53 activity). METHODS AND RESULTS: PH development was assessed by pulmonary arterial pressure, right ventricular hypertrophy and arterial wall thickness. The effect of MCT and PFT on lung p53 pathway expression was evaluated by western blot. Fourteen days of daily PFT treatment (2.2 mg/kg/day), similar to a single injection of MCT (60 mg/kg), induced PH and aggravated MCT-induced PH. In the first week after MCT administration and prior to PH development, p53, p21 and MDM2 protein levels were significantly reduced; whereas PFT administration effectively altered the protein level of p53 targets. Anti-apoptotic and pro-proliferative effects of PFT were revealed by TUNEL and MTT assays on cultured human PA-SMCs treated with 50 µM PFT. CONCLUSIONS: Pharmacological inactivation of p53 is sufficient to induce PH with a chronic treatment by PFT, an effect related to its anti-apoptotic and pro-proliferative properties. The p53 pathway was down-regulated during the first week in the rat MCT model. These in vivo experiments implicate the p53 pathway at the initiation stages of PH pathogenesis.


Assuntos
Hipertensão Pulmonar/metabolismo , Proteína Supressora de Tumor p53/metabolismo , Animais , Apoptose/efeitos dos fármacos , Benzotiazóis/farmacologia , Proliferação de Células/efeitos dos fármacos , Humanos , Hipertensão Pulmonar/induzido quimicamente , Hipertensão Pulmonar/genética , Hipertrofia Ventricular Direita/metabolismo , Masculino , Monocrotalina/toxicidade , Ratos , Ratos Wistar , Tolueno/análogos & derivados , Tolueno/farmacologia , Proteína Supressora de Tumor p53/genética
18.
Rev Med Suisse ; 10(449): 2101-6, 2014 Nov 05.
Artigo em Francês | MEDLINE | ID: mdl-25536831

RESUMO

Age-related physiological changes and comorbidities affect older patients' tolerance to surgery. Pre-operative assessment in these patients requires, beside the usual physical evaluation, the systematic screening of common geriatric syndromes. Cognitive, gait and balance, nutritional, and functional impairments, all flag patients at higher risk for per- and postoperative complications. Preoperative assessment is an opportunity to detect these syndromes and propose preventative interventions (physical therapy, nutritional and cognitive support measures) likely to reduce the incidence of postoperative morbidity.


Assuntos
Avaliação Geriátrica/métodos , Cuidados Pré-Operatórios/métodos , Idoso , Idoso de 80 Anos ou mais , Anestesia/efeitos adversos , Anestesia/métodos , Humanos , Masculino , Fatores de Risco , Procedimentos Cirúrgicos Operatórios/efeitos adversos , Procedimentos Cirúrgicos Operatórios/classificação , Procedimentos Cirúrgicos Operatórios/métodos
19.
Vet J ; 191(1): 131-4, 2012 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-21333567

RESUMO

Masitinib, a selective tyrosine kinase inhibitor, has previously been shown to enhance the antiproliferative effects of gemcitabine in human pancreatic cancer, demonstrating potential as a chemosensitizer. This exploratory study investigated the ability of masitinib to sensitize various canine cancer cell lines to doxorubicin, vinblastine, and gemcitabine. Masitinib strongly sensitized histiocytic sarcoma cells to vinblastine (>70-fold reduction in IC(50) at 5 µM masitinib), as well as osteosarcoma and mammary carcinoma cells to gemcitabine (>70-fold reduction at 5-10 µM). In addition, several cell lines were sensitized to doxorubicin (2-10-fold reduction at 10 µM). These data establish proof-of-concept that masitinib in combination with chemotherapeutic agents can generate synergistic growth inhibition in various canine cancers, possibly through chemosensitization. The findings justify further investigation into those combinations that may potentially yield therapeutic benefit.


Assuntos
Doenças do Cão/tratamento farmacológico , Inibidores de Proteínas Quinases/farmacologia , Sarcoma/veterinária , Animais , Antineoplásicos/farmacologia , Benzamidas , Linhagem Celular Tumoral/efeitos dos fármacos , Desoxicitidina/análogos & derivados , Desoxicitidina/farmacologia , Doenças do Cão/patologia , Cães , Doxorrubicina/administração & dosagem , Sinergismo Farmacológico , Concentração Inibidora 50 , Piperidinas , Piridinas , Sarcoma/tratamento farmacológico , Sarcoma/patologia , Tiazóis/farmacologia , Vimblastina/administração & dosagem , Gencitabina
20.
Sarcoidosis Vasc Diffuse Lung Dis ; 29(2): 90-8, 2012 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-23461070

RESUMO

Over the past few years an increasing number of prospective controlled sarcoidosis treatment trials have been completed. Unfortunately, these studies utilize different endpoints making comparisons between studies difficult. At the recent World Association of Sarcoidosis and other Granulomatous disease (WASOG) meeting, a session was dedicated to the evaluation of clinical endpoints for various disease manifestations. These included pulmonary, pulmonary hypertension, fatigue, cutaneous, and a classification of clinical disease phenotypes. Based on the available literature and our current understanding of the disease, recommendations for clinical evaluation were proposed for each disease category. For example, it was recommended that pulmonary studies should include changes in the forced vital capacity. Additionally, it was recommended that all trials should incorporate measurement of quality of life.


Assuntos
Ensaios Clínicos como Assunto/métodos , Gerenciamento Clínico , Sarcoidose Pulmonar/diagnóstico , Sarcoidose Pulmonar/terapia , Humanos , Qualidade de Vida , Testes de Função Respiratória , Índice de Gravidade de Doença
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