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1.
Can J Psychiatry ; 69(4): 288-295, 2024 04.
Artigo em Inglês | MEDLINE | ID: mdl-38155429

RESUMO

OBJECTIVE: Electroconvulsive therapy (ECT) is used to treat several mental illnesses. Seizure duration is used to determine if the administered stimulus was adequate. Duration is estimated by electroencephalogram (EEG) interpretation and/or observed motor response (OMR). Neither method is considered the gold standard. This study investigated the relationship between the 2 methods. The hypothesis was that both EEG and OMR would be significantly positively correlated. Previous researchers have suggested that the 2 methods resulted in different estimates. METHODS: A case series was conducted using recorded estimates obtained prospectively from 102 ECTs on adult psychiatric inpatients. RESULTS: A strong positive association was not observed in this study, correlation coefficient 0.510 (p < 0.001). CONCLUSIONS: This study suggests that the 2 methods differ, and further research is needed to determine the best indicator of adequate treatment.


Assuntos
Eletroconvulsoterapia , Transtornos Mentais , Adulto , Humanos , Convulsões/terapia , Transtornos Mentais/terapia , Eletroencefalografia
2.
Strahlenther Onkol ; 197(1): 27-38, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-32705304

RESUMO

INTRODUCTION: Focal adhesion kinase (FAK) is a nonreceptor tyrosine kinase protein frequently overexpressed in cancer and has been linked to an increase in the stem cell population of tumors, resistance to therapy, and metastatic spread. Pharmacological FAK inhibition in pancreatic cancer has received increased attention over the last few years, either alone or in combination with other therapeutics including chemotherapy and immunotherapy. However, its prognostic value and its role in radioresistance of pancreatic ducal adenocarcinoma (PDAC) is unknown. METHODS AND MATERIALS: Using the TCGA and GTEx databases, we investigated the genetic alterations and mRNA expression levels of PTK2 (the encoding-gene for FAK) in normal pancreatic tissue and pancreatic cancer and its impact on patient survival. Furthermore, we evaluated the expression of FAK and its tyrosine domain Ty-397 in three pancreatic cancer cell lines. We went further and evaluated the role of a commercial FAK tyrosine kinase inhibitor VS-4718 on the viability and radiosensitization of the pancreatic cell lines as well as its effect on the extracellular matrix (ECM) production from the pancreatic stellate cells. Furthermore, we tested the effect of combining radiation with VS-4718 in a three-dimensional (3D) multicellular pancreatic tumor spheroid model. RESULTS: A database analysis revealed a relevant increase in genetic alterations and mRNA expression of the PTK2 in PDAC, which were associated with lower progression-free survival. In vitro, there was only variation in the basal phosphorylation level of FAK in cell lines. VS-4718 radiosensitized pancreatic cell lines only in the presence of ECM-producing pancreatic stellate cells and markedly reduced the ECM production in the stromal cells. Finally, using a 3D multicellular tumor model, the combination of VS-4718 and radiotherapy significantly reduced the growth of tumor aggregates. CONCLUSION: Pharmacological inhibition of FAK in pancreatic cancer could be a novel therapeutic strategy as our results show a radiosensitization effect of VS-4718 in vitro in a multicellular 2D- and in a 3D-model of pancreatic cancer.


Assuntos
Aminopiridinas/farmacologia , Antineoplásicos/farmacologia , Carcinoma Ductal Pancreático/tratamento farmacológico , Quinase 1 de Adesão Focal/antagonistas & inibidores , Proteínas de Neoplasias/antagonistas & inibidores , Neoplasias Pancreáticas/tratamento farmacológico , Inibidores de Proteínas Quinases/farmacologia , Radiossensibilizantes/farmacologia , Carcinoma Ductal Pancreático/enzimologia , Ciclo Celular/efeitos dos fármacos , Linhagem Celular Tumoral , Técnicas de Cocultura , Colágeno/metabolismo , Proteínas da Matriz Extracelular/metabolismo , Histonas/análise , Humanos , Estimativa de Kaplan-Meier , Neoplasias Pancreáticas/enzimologia , Células Estreladas do Pâncreas/efeitos dos fármacos , Células Estreladas do Pâncreas/metabolismo , Intervalo Livre de Progressão , Interferência de RNA , RNA Mensageiro/biossíntese , RNA Neoplásico/biossíntese , RNA Interferente Pequeno/genética , RNA Interferente Pequeno/farmacologia , Tolerância a Radiação/efeitos dos fármacos , Esferoides Celulares/efeitos dos fármacos , Esferoides Celulares/efeitos da radiação , Células Estromais/efeitos dos fármacos , Ensaio Tumoral de Célula-Tronco
3.
Fetal Pediatr Pathol ; 39(2): 172-178, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31329002

RESUMO

ABSTACTBackground: Gastrointestinal stromal tumors (GIST) are the most common mesenchymal neoplasms of the digestive tract. They are believed to originate from the interstitial cells of Cajal or their precursors. Case Report: A 10-day-old boy presented with intestinal obstruction. He was operated upon and a mass was found at the sigmoid colon, which was resected and divided colostomy was performed. The diagnosis of neonatal GIST was confirmed by histologic and immunohistochemical studies. Conclusion: This is the ninth case of neonatal GIST that arose from the intestine and the first reported to arise from the sigmoid colon. Colonic GIST can occur in the neonatal age group.


Assuntos
Colo Sigmoide/patologia , Tumores do Estroma Gastrointestinal/patologia , Trato Gastrointestinal/patologia , Obstrução Intestinal/patologia , Tumores do Estroma Gastrointestinal/congênito , Tumores do Estroma Gastrointestinal/diagnóstico , Humanos , Recém-Nascido , Obstrução Intestinal/congênito , Obstrução Intestinal/diagnóstico , Masculino
4.
Platelets ; 26(5): 443-7, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-24955720

RESUMO

In patients with end-stage renal disease (ESRD), hemorrhagic complications are commonly encountered due to abnormalities in primary hemostasis, in particular, platelet (PLT) dysfunction and impaired PLT-vessel wall interaction. The pathogenesis of altered PLT function is considered multifactorial. Dialysis procedures had a favorable impact on bleeding complications in uremic patients. We aimed to evaluate the effect of hemodialysis on PLT function in patients with ESRD on a regular hemodialysis program. This study was carried on 40 ESRD Egyptian patients undergoing regular hemodialysis. Twenty healthy subjects were studied as a control group. Samples were assayed for PLT function by PLT function analyzer-100 (PFA-100) before and after the hemodialysis session. Prolonged closure time (CT) was found in 90% of patients before hemodialysis session and returned to normal ranges after hemodialysis session in 22% of those patients. The CT was longer among patients before and after hemodialysis session compared to controls (p < 0.01 and p = 0.02, respectively), while it was shorter among patients after hemodialysis session compared to before hemodialysis session (p = 0.004). Hemoglobin (Hb) level and hematocrit (Hct) values were higher in control group compared to patient group before hemodialysis session (p < 0.01 and p = 0.001, respectively), patients after hemodialysis session (p < 0.01 and p = 0.02, respectively) and also in patients after hemodialysis compared to before hemodialysis session (p = 0.001 and p < 0.01, respectively). The percentage change in PLT count was positively correlated with that of Hb (p = 0.01). We concluded that PLT dysfunction is encountered in ESRD Egyptian patients, and hemodialysis has the ability to correct some part of these hemostatic disturbances.


Assuntos
Plaquetas/metabolismo , Falência Renal Crônica/sangue , Testes de Função Plaquetária , Diálise Renal , Adulto , Estudos de Casos e Controles , Índices de Eritrócitos , Feminino , Humanos , Falência Renal Crônica/diagnóstico , Falência Renal Crônica/terapia , Masculino , Pessoa de Meia-Idade , Contagem de Plaquetas , Testes de Função Plaquetária/instrumentação , Testes de Função Plaquetária/métodos , Diálise Renal/efeitos adversos , Adulto Jovem
5.
Nucl Med Commun ; 44(7): 604-612, 2023 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-37114413

RESUMO

OBJECTIVE: To assess the inter-observer variability between readers in the detection of bone metastases for different modalities [planar bone scintigraphy (BS), single photon emission computed tomography/computed tomography (SPECT/CT), and fluorine-18 fluorodeoxyglucose positron emission tomography/computed tomography (PET/CT) (F-18 FDG PET/CT)]. METHODS: Patients with known primary tumors referred for metastatic workup either by F-18 FDG PET/CT or conventional planar BS and SPECT/CT were enrolled in this prospective study. The three modalities (BS, SPECT/CT, and PET/CT) were acquired for each patient. Interpretation was done by two independent nuclear medicine physicians separately and blindly; reader 1 (R1) and reader 2 (R2). A three-point subjective scale was used (1 = negative for bone metastases, 2 = equivocal, and 3 = positive). The findings were compared to the final patient status based on clinical and radiological follow-up for at least 6 months. The Kappa test was used to assess the degree of agreement between readers in their interpretation of each modality. RESULTS: A total of 54 patients (39 females and 15 males, ages 26-76; mean: 54.7 ±â€…12) were eligible for this study. Fair agreement 0.372 between R1 and R2 in interpretation of BS was noticed that improved to 0.847 after addition of SPECT/CT. Perfect agreement was achieved between R1 and R2 while interpreting PET/CT images (kappa = 0.964, P < 0.001). CONCLUSION: F-18 FDG PET/CT significantly improved the inter-observer variability between readers, allowing for better diagnosis of bone metastases in known cancer patients. Also, it was superior to BS and SPECT/CT in the detection of bone metastases.


Assuntos
Neoplasias Ósseas , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Masculino , Feminino , Humanos , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada/métodos , Fluordesoxiglucose F18 , Estudos Prospectivos , Variações Dependentes do Observador , Tomografia por Emissão de Pósitrons/métodos , Neoplasias Ósseas/diagnóstico por imagem , Neoplasias Ósseas/secundário , Tomografia Computadorizada com Tomografia Computadorizada de Emissão de Fóton Único
6.
Int Arch Otorhinolaryngol ; 26(2): e183-e190, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35602268

RESUMO

Introduction Epistaxis is a common presentation among children. Objective To investigate the suitability of a simple tool of assessment for patients with epistaxis that could guide in subgrouping those with possible bleeding tendencies who may need further assessment. Methods Children who presented to a tertiary outpatient clinic with epistaxis of an unknown cause were recruited. They underwent thorough clinical assessment and answered the pediatric bleeding questionnaire and the epistaxis severity score. All patients underwent complete blood count as well as coagulation profile, and confirmatory diagnostic tests were performed as needed. Results Among the 30,043 patients who presented to the outpatient clinic over a year, 100 children had epistaxis, with an estimated annual frequency of 1 in 300. A total of 84% of the patients were younger than 12, and nearly half of these were younger than 6 years. Seventy-six patients had recurrent epistaxis, and 12 had systemic comorbidities. A significant higher percentage of patients presented with epistaxis in the hot months of the year. A total of 90% of the patients presented anterior bleeding, and the majority were treated with nasal compression only. Forty-three patients presented with epistaxis only; 37 of them were diagnosed as idiopathic epistaxis, and 6 had local causes. Fifty-seven patients presented with other bleeding manifestations, 47 of whom had a definite bleeding disorder and the other 10 had undiagnosed bleeding tendency. Those with other bleeding manifestations showed a higher frequency of positive family history of epistaxis; of being referred from a primary care physician; of having alarming low platelet count, and of presenting less seasonal variability. A bleeding score ≥ 2 showed significant value in suspecting an underlying systemic pathology as a cause of epistaxis. Conclusion The pediatric bleeding questionnaire is a useful and simple tool in the identification of pediatric patients who need further diagnostic testing to detect any underlying bleeding tendency.

7.
Indian J Hematol Blood Transfus ; 36(2): 316-323, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32425383

RESUMO

The occurrence of thrombotic microangiopathy (TMA) in pregnancy is an unfortunate emergency condition. Proper diagnosis is mandatory which requires the consideration of two overlapping diagnoses: severe preeclampsia/haemolysis, elevated liver enzymes, and low platelet syndrome (SPE/HELLP) and thrombotic thrombocytopenic purpura (TTP). The long turn-around times of ADAMTS13 testing precludes the timely distinction between the two conditions. We aimed at evaluating schistocyte counts and immature platelet fraction (IPF%), as both increase in TMAs, to discriminate between TTP and SPE/HELLP of pregnancy. IPF% was measured using Sysmex XE-2100 automated hematology analyzer, and schistocyte counts were estimated microscopically as per the International Council for Standardization in Hematology-Schistocyte Working Group guidelines. The study included 30 pregnant patients with SPE/HELLP, 13 pregnant patients with TTP, and 30 women with normal pregnancy. The discrimination between the two patient categories was based on clinical judgment and TTP cases were identified using the PLASMIC score. TTP patients had higher values of IPF% than SPE/HELLP [19.5% (16.9-27.1) vs 13% (9.5-23.25); p < 0.001]; similar results were revealed regarding schistocyte counts [6.5% (3.9-8.6) vs 2.1% (1.6-3.5); p < 0.001]. IPF% and schistocyte counts were able to discriminate between TMA patients and normal pregnant women, and between and SPE/HELLP and TTP patients. Moreover, the discriminatory function of each was improved when the two parameters were used in combination. IPF% analysis should be used in conjunction with manual schistocyte counting in TMA cases to distinguish TTP pregnant patients from patients having SPE/HELLP.

8.
Naunyn Schmiedebergs Arch Pharmacol ; 392(6): 669-683, 2019 06.
Artigo em Inglês | MEDLINE | ID: mdl-30739140

RESUMO

Depression and cardiovascular disease (CVD) are two faces of one coin. A pro-inflammatory state was previously suggested in the pathology of both diseases. We investigated the effect of chronic administration (2 weeks) of imipramine (20 mg/kg/day) and pentoxifylline (50 mg/kg/day) on behavioral, aortic histological abnormalities, and level of circulating endothelial progenitor cells (CEPCs) in peripheral blood of male Wistar rats exposed to chronic mild stress (CMS) and high-fat diet. Exposure to CMS and high-fat diet induced a depressive-like behavior alongside aortic immunohistochemical changes associated with an increase in aortic TNF-α level. Markers of CEPCs, VEGFR-2 and CD133, were significantly disturbed in aortic sections, as compared to control animals and those exposed to CMS while fed high-fat diet, although flowcytometric analysis did not show any significant changes in the level of CEPCs in peripheral blood. Chronic pentoxifylline treatment was more effective in ameliorating the histological changes and endothelial damage compared to imipramine. Pro-inflammatory cytokines-induced disturbances in CEPCs could constitute a plausible link between depression and atherosclerotic cardiovascular disease. Current antidepressants reduce symptoms of depression without tackling the underlying link between it and cardiovascular disease. Targeting pro-inflammatory cytokines might open a new therapeutic approach to alleviate depression and reduce the risk of mortality from cardiovascular disease.


Assuntos
Aorta Torácica/efeitos dos fármacos , Dieta Hiperlipídica , Células Progenitoras Endoteliais/fisiologia , Pentoxifilina/uso terapêutico , Estresse Psicológico/complicações , Doenças Vasculares/tratamento farmacológico , Antígeno AC133/análise , Animais , Aorta Torácica/química , Aorta Torácica/patologia , Peso Corporal/efeitos dos fármacos , Doença Crônica , Citometria de Fluxo , Masculino , Pentoxifilina/farmacologia , Ratos , Ratos Wistar , Receptor 2 de Fatores de Crescimento do Endotélio Vascular/análise
9.
Int. arch. otorhinolaryngol. (Impr.) ; 26(2): 183-190, Apr.-June 2022. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1385093

RESUMO

Abstract Introduction Epistaxis is a common presentation among children. Objective To investigate the suitability of a simple tool of assessment for patients with epistaxis that could guide in subgrouping those with possible bleeding tendencies who may need further assessment. Methods Children who presented to a tertiary outpatient clinic with epistaxis of an unknown cause were recruited. They underwent thorough clinical assessment and answered the pediatric bleeding questionnaire and the epistaxis severity score. All patients underwent complete blood count as well as coagulation profile, and confirmatory diagnostic tests were performed as needed. Results Among the 30,043 patients who presented to the outpatient clinic over a year, 100 children had epistaxis, with an estimated annual frequency of 1 in 300. A total of 84% of the patients were younger than 12, and nearly half of these were younger than 6 years. Seventy-six patients had recurrent epistaxis, and 12 had systemic comorbidities. A significant higher percentage of patients presented with epistaxis in the hot months of the year. A total of 90% of the patients presented anterior bleeding, and the majority were treated with nasal compression only. Forty-three patients presented with epistaxis only; 37 of them were diagnosed as idiopathic epistaxis, and 6 had local causes. Fifty-seven patients presented with other bleeding manifestations, 47 of whom had a definite bleeding disorder and the other 10 had undiagnosed bleeding tendency. Those with other bleeding manifestations showed a higher frequency of positive family history of epistaxis; of being referred from a primary care physician; of having alarming low platelet count, and of presenting less seasonal variability. A bleeding score ≥ 2 showed significant value in suspecting an underlying systemic pathology as a cause of epistaxis. Conclusion The pediatric bleeding questionnaire is a useful and simple tool in the identification of pediatric patients who need further diagnostic testing to detect any underlying bleeding tendency.

10.
Int J Cardiol ; 244: 67-76, 2017 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-28647440

RESUMO

BACKGROUND: Our study aimed to compare three different percutaneous coronary intervention (PCI) approaches: culprit-only (COR) and complete (CR) revascularization - categorizing into immediate (ICR) or staged (SCR). METHODS: We searched 13 databases for randomized controlled trials. Articles were included if they compared at least two strategies. To have more studies in each analysis, an adjusted analysis was performed using person-years to incorporate follow-up durations and obtain pooled rate ratios (RR), with their corresponding 95% confidence interval. RESULTS: Thirteen trials were included with a population of 2830 patients. COR significantly increased major adverse cardiac event (MACE) (adjusted RR 1.67, 95% CI: 1.27-2.19) and repeat revascularization (2.12, 1.67-2.69), which was driven by repeat PCI, without any difference in all-cause mortality and myocardial infarction (MI) compared to CR. When categorizing CR into SCR and ICR, the trend repeated with COR increased MACE (1.99, 1.53-2.6 for ICR), cardiovascular mortality (2.06, 1.07-3.96 for ICR), MI for ICR (1.72, 1.04-2.86), repeat revascularization and repeat PCI for both ICR and SCR. Non-cardiovascular mortality, stroke, nephropathy, re-hospitalization, stent thrombosis and bleeding were similar among all approaches. CONCLUSIONS: In MVD-STEMI patients, CR is better than COR in terms of MACE, cardiovascular mortality, repeat revascularization with no difference in safety outcomes. There was a trend towards to a reduction of cardiovascular mortality and MI in ICR compared to SCR when each matched with COR; even though there is no statistically significant difference between ICR and SCR when compared together.


Assuntos
Doença da Artéria Coronariana/terapia , Revascularização Miocárdica/normas , Intervenção Coronária Percutânea/normas , Infarto do Miocárdio com Supradesnível do Segmento ST/terapia , Doença da Artéria Coronariana/diagnóstico , Doença da Artéria Coronariana/epidemiologia , Humanos , Revascularização Miocárdica/métodos , Intervenção Coronária Percutânea/métodos , Ensaios Clínicos Controlados Aleatórios como Assunto/métodos , Infarto do Miocárdio com Supradesnível do Segmento ST/diagnóstico , Infarto do Miocárdio com Supradesnível do Segmento ST/epidemiologia
11.
J Med Food ; 13(3): 605-9, 2010 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20438327

RESUMO

Among honey's benefits are its anti-inflammatory and antimicrobial effects. Because gastroenteritis is an acute inflammation of the gastrointestinal tract that may be caused by a variety of microbes, the aim of the present study was to verify whether the addition of honey in oral rehydration solution (ORS) could affect the duration of symptoms of acute gastroenteritis in infants and children. One hundred infants and children with acute gastroenteritis were randomly assigned to one of two treatment groups, each consisting of 50 patients: Group I received ORS for rehydration (control), and Group II received ORS with honey. The mean ages of patients of Groups I and II were 1.5 +/- 1.2 and 1.1 +/- 0.8 years, respectively. In the honey-treated group the frequencies of vomiting and diarrhea were significantly reduced compared to the control group (P < .001 and P < .05, respectively). Also, the recovery time, defined as the number of hours from initiation of treatment to when normal soft stools are passed, with the patient showing normal hydration and satisfactory weight gain, was significantly shortened after honey ingestion (P < .001). In conclusion, honey added to ORS promoted rehydration of the body and sped recovery from vomiting and diarrhea.


Assuntos
Hidratação , Gastroenterite/tratamento farmacológico , Mel , Soluções para Reidratação/administração & dosagem , Administração Oral , Animais , Abelhas , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino
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