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1.
Biomedicines ; 11(9)2023 Sep 09.
Artigo em Inglês | MEDLINE | ID: mdl-37760938

RESUMO

BACKGROUND: Inflammatory bowel disease (IBD) is a public health issue with a growing prevalence, which can be divided into two phenotypes, namely Crohn's disease (CD) and ulcerative colitis (UC). Currently, used therapy is based only on symptomatic and/or palliative pharmacological approaches. These treatments seek to induce and maintain remission of the disease and ameliorate its secondary effects; however, they do not modify or reverse the underlying pathogenic mechanism. Therefore, it is essential to investigate new potential treatments. Carbamylated erythropoietin (cEPO) results from the modification of the Erythropoietin (EPO) molecule, reducing cardiovascular-related side effects from the natural erythropoiesis stimulation. cEPO has been studied throughout several animal models, which demonstrated an anti-inflammatory effect by decreasing the production of several pro-inflammatory cytokines. AIM: This study aimed to evaluate the efficacy and safety of cEPO in a chronic TNBS-induced colitis model in rodents. METHODS: Experimental colitis was induced by weekly intrarectal (IR) administrations of 1% TNBS for 5 weeks in female CD-1 mice. Then, the mice were treated with 500 IU/kg/day or 1000 IU/kg/day of cEPO through intraperitoneal injections for 14 days. RESULTS: cEPO significantly reduced the concentration of alkaline phosphatase (ALP), fecal hemoglobin, tumor necrosis factor (TNF)-α, and interleukin (IL)-10. Also, it demonstrated a beneficial influence on the extra-intestinal manifestations, with the absence of significant side effects of its use. CONCLUSION: Considering the positive results from cEPO in this experiment, it may arise as a new possible pharmacological approach for the future management of IBD.

2.
Nat Prod Res ; : 1-4, 2023 Apr 06.
Artigo em Inglês | MEDLINE | ID: mdl-37021799

RESUMO

The species Bathysa gymnocarpa K.Schum is a tree belonging to the Rubiaceae family, endemic in Brazil. So far, there are reports neither of phytochemical work nor of biological evaluation of it. The analysis by High Performance Liquid Chromatography coupled to a Diode Array Detector and a tandem Mass Spectrometer with an Electrospray Ionization source (HPLC-DAD-ESI-MS/MS) of its crude extract allowed to characterize in a complex mixture, without isolation, fourteen compounds, being two as cinnamic acid derivatives, and the others as mono-, di- and triglycosilated derivatives of the flavonols quercetin and kaempferol. These compounds are reported for the first time in Bathysa spp.

3.
J Nat Prod ; 84(1): 81-90, 2021 01 22.
Artigo em Inglês | MEDLINE | ID: mdl-33397096

RESUMO

Cyclotides are plant-derived peptides found within five families of flowering plants (Violaceae, Rubiaceae, Fabaceae, Solanaceae, and Poaceae) that have a cyclic backbone and six conserved cysteine residues linked by disulfide bonds. Their presence within the Violaceae species seems ubiquitous, yet not all members of other families produce these macrocyclic peptides. The genus Palicourea Aubl. (Rubiaceae) contains hundreds of neotropical species of shrubs and small trees; however, only a few cyclotides have been discovered hitherto. Herein, five previously uncharacterized Möbius cyclotides within Palicourea sessilis and their pharmacological activities are described. Cyclotides were isolated from leaves and stems of this plant and identified as pase A-E, as well as the known peptide kalata S. Cyclotides were de novo sequenced by MALDI-TOF/TOF mass spectrometry, and their structures were solved by NMR spectroscopy. Because some cyclotides have been reported to modulate immune cells, pase A-D were assayed for cell proliferation of human primary activated T lymphocytes, and the results showed a dose-dependent antiproliferative function. The toxicity on other nonimmune cells was also assessed. This study reveals that pase cyclotides have potential for applications as immunosuppressants and in immune-related disorders.


Assuntos
Ciclotídeos/efeitos dos fármacos , Ciclotídeos/metabolismo , Fabaceae/química , Linfócitos/metabolismo , Solanaceae/química , Violaceae/química , Brasil , Ciclotídeos/química , Humanos , Linfócitos/química , Linfócitos/efeitos dos fármacos , Magnoliopsida , Espectrometria de Massas , Folhas de Planta/química , Folhas de Planta/metabolismo
4.
Rev. bras. psicanál ; 54(3): 167-176, jul.-set. 2020. ilus
Artigo em Português | LILACS-Express | LILACS, INDEXPSI | ID: biblio-1288930

RESUMO

RESUMO Este artigo tenta fazer uma aproximação entre o teatro de Valère Novarina e a psicanálise lacaniana através da abordagem do objeto voz. No teatro de Novarina, vemos uma profusão da palavra no intuito de extrair não o seu sentido, mas a sua voz, como um pedaço de corpo que é lançado no espaço cênico. Na psicanálise, a voz desponta não como um veículo ou um instrumento da palavra, mas como aquilo que se subtrai dela na constituição do sujeito e permanece enquanto resto. O resto vocálico é o que retorna à cena, seja no teatro do dramaturgo francês, seja na própria sessão analítica, como um real do corpo que insiste em transmitir algo para além do sentido. Dessa forma, o objeto voz é o pivô dessa aproximação justamente por ser o inexorável do sujeito, a libra de carne que o sujeito perde para se constituir e retorna para o palco da vida numa insistente presença.


ABSTRACT This article attempts to approximate Valère Novarina's theater and Lacanian psychoanalysis by approaching the voice object. In Novarina's theater we see a profusion of the word in order to extract not its meaning but its voice as a part of the body that is thrown into the scenic area. In psychoanalysis, the voice emerges not as a vehicle or instrument of the word, but that which is subtracted from it in the constitution of the subject and remains as remnant. The vowel remnant is what returns to the scene, whether in the theater of the French playwright or in the analytic session itself, as a real body that insists on conveying something beyond meaning. Thus, the voice object is the pivot of this approach precisely because it is the inexorable of the subject, the pound of flesh that the subject loses to be constituted and returns to the stage of life in an insistent presence.


RESUMEN Este artículo intenta aproximarse al teatro de Valère Novarina y al psicoanálisis lacaniano al acercarse al objeto voz. En el teatro de Novarina vemos una profusión de la palabra para extraer no su significado, sino su voz como una pieza de cuerpo que se arroja al espacio escénico. En el psicoanálisis, la voz emerge no como un vehículo o instrumento de la palabra, sino como aquello que se le resta en la constitución del sujeto y permanece como un resto. El resto de las vocales es lo que vuelve a la escena, ya sea en el teatro del dramaturgo francés o en la sesión analítica misma, como un cuerpo real que insiste en transmitir algo más allá del significado. Por lo tanto, el objeto voz es el eje de este enfoque precisamente porque es lo inexorable del sujeto, la libra de carne que el sujeto pierde para constituirse y regresa a la escena de la vida en una presencia insistente.


RÉSUMÉ Cet article tente de rapprocher le théâtre de Valère Novarina et la psychanalyse lacanienne au moyen de l'objet vocal. Dans le théâtre de Novarina, nous voyons une profusion de mots dans le dessein d'extraire non pas son sens mais sa voix, tel un morceau de corps lancé dans l'espace scénique. En psychanalyse, la voix n'émerge pas comme un véhicule ou un instrument de la parole, mais comme ce qui s'en soustrait dans la constitution du sujet et demeure en tant qu'un reste. Le reste vocal est ce qui revient sur la scène, que ce soit sur le théâtre du dramaturge français soit dans la session analytique elle-même, comme un corps réel qui insiste pour transmettre quelque chose qui dépasse le sens. Ainsi, l'objet vocal est le pivot de cette approche, précisément parce qu'il est l'inexorable du sujet, la livre de chair que le sujet perd pour se constituer et revient sur la scène de la vie dans une présence insistante.

5.
Ciênc. Saúde Colet. (Impr.) ; 24(5): 1915-1923, Mai. 2019. tab, graf
Artigo em Inglês | LILACS | ID: biblio-1001815

RESUMO

Abstract Missed appointments have a great economic, social and administrative impact on the management of public health services. This research aimed to study factors associated with non-attendance to the first appointments of pediatric patients in secondary dental care services in the city of Curitiba, Brazil. A cross-sectional study was performed using secondary data from the electronic health records of the Curitiba Municipal Secretary of Health. The study included all children (0-12 years) referred to secondary dental clinics in the years 2010 to 2013. Data were analyzed by the chi-square test and Pearson linear trend chi-square (α = 0.05). Binary logistic regression models were built. Data from 1,663 children were assessed and the prevalence of non-attendance was 28.3%. The variables associated with the non-attendance in inferential analysis (p < 0.05) and in the final model were the household income per capita (95% CI: 1.93-2.82) and the waiting time in virtual queue (95% CI: 1.000-1.002). Socioeconomic aspects and the waiting time in virtual queue, should be considered in the strategic planning of health services as they may influence the attendance of pediatric patients in secondary dental referral service.


Resumo O não comparecimento a consultas tem um grande impacto no gerenciamento dos serviços de saúde pública. O objetivo foi avaliar os fatores associados ao não comparecimento às primeiras consultas de pacientes pediátricos nos serviços de atenção secundária em saúde bucal na cidade de Curitiba, Brasil. Um estudo transversal foi desenvolvido com dados secundários obtidos de cadastros eletrônicos da Secretaria Municipal de Saúde de Curitiba. Participaram crianças de 0 a 12 anos de idade encaminhadas para atenção secundária nos anos de 2010 a 2013. Os dados foram analisados pelos testes de qui-quadrado de Pearson e qui-quadrado de tendência linear (α = 0,05). Foram constituídos modelos de regressão logística binária. Foram analisados os dados de 1.663 crianças. A prevalência de não comparecimento às primeiras consultas foi de 28,3%. As variáveis que estiveram associadas ao não comparecimento na análise inferencial (p < 0,05) e no modelo final foram a renda per capita familiar (95% CI: 1,93-2,82) e o tempo de espera em fila virtual (95% CI: 1,000-1,002). Aspectos econômicos e o tempo de espera em fila virtual devem ser considerados no planejamento estratégico dos serviços públicos de saúde bucal, pois podem influenciar o comparecimento de pacientes na atenção secundária.


Assuntos
Humanos , Masculino , Feminino , Lactente , Pré-Escolar , Criança , Agendamento de Consultas , Listas de Espera , Assistência Odontológica/estatística & dados numéricos , Pacientes não Comparecentes/estatística & dados numéricos , Encaminhamento e Consulta , Fatores Socioeconômicos , Fatores de Tempo , Atenção Secundária à Saúde , Brasil , Estudos Transversais , Registros Eletrônicos de Saúde
6.
Phytochem Anal ; 30(1): 62-72, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30191624

RESUMO

INTRODUCTION: The methanol (MeOH) leaf extracts of the species Faramea bahiensis, F. hyacinthina and F. truncata (Rubiaceae) have previously shown in vitro non-cytotoxic and anti-dengue virus serotype 2 (DENV2) activities in human hepatocarcinoma cell lineage (HepG2). Chemical studies have led to the isolation of major flavonoids, but quite complex fractions of phenolic compounds still remain. OBJECTIVE: To complete the study of phenolic compounds in the leaves and to access the presence of these compounds in the stems of these Faramea spp. by online high-performance liquid chromatography-diode array detector-electrospray ionisation tandem mass spectrometry (HPLC-DAD-ESI-MS/MS), as well as to evaluate the in vitro cytotoxic and anti-DENV2 activities of their MeOH stem extracts. METHODOLOGY: The identification was performed by comparing retention times, UV and mass spectra with those of available standards and by using the mechanisms and fragmentation patterns established in previous studies. The effects of the extracts in DENV2 infected HepG2 cell viability was determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The virus titer was quantified by plaque assay. RESULTS: The study led to the characterisation of 31 phenolic compounds including flavonoid O- and C-glycosides, phenolic acids and one coumarin. The stem extracts from F. hyacinthina and F. bahiensis presented a similar bioactivity to those of their leaves but a loss of cytoprotective activity of F. bahiensis and a higher cytotoxicity of F. truncata were observed. CONCLUSIONS: This research allowed a detailed phenolic composition of three bioactive Faramea species to be achieved, thus contributing to the study of this genus and providing valuable information for further phytotherapeutic applications.


Assuntos
Antivirais/farmacologia , Cromatografia Líquida de Alta Pressão/métodos , Vírus da Dengue/efeitos dos fármacos , Folhas de Planta/química , Caules de Planta/química , Polifenóis/análise , Polifenóis/farmacologia , Rubiaceae/química , Espectrometria de Massas por Ionização por Electrospray/métodos , Espectrometria de Massas em Tandem/métodos , Animais , Brasil , Linhagem Celular , Sobrevivência Celular/efeitos dos fármacos , Cricetinae , Flavonoides/análise , Flavonoides/farmacologia , Células Hep G2 , Humanos , Sais de Tetrazólio/química , Tiazóis/química
7.
J. venom. anim. toxins incl. trop. dis ; 25: e147018, 2019. tab, graf
Artigo em Inglês | LILACS, VETINDEX | ID: biblio-1002495

RESUMO

Lachesis muta rhombeata is one of the venomous snakes of medical importance in Brazil whose envenoming is characterized by local and systemic effects which may produce even shock and death. Its venom is mainly comprised of serine and metalloproteinases, phospholipases A2 and bradykinin-potentiating peptides. Based on a previously reported fractionation of L. m. rhombeata venom (LmrV), we decided to perform a subproteome analysis of its major fraction and investigated a novel component present in this venom. Methods: LmrV was fractionated through molecular exclusion chromatography and the main fraction (S5) was submitted to fibrinogenolytic activity assay and fractionated by reversed-phase chromatography. The N-terminal sequences of the subfractions eluted from reversed-phase chromatography were determined by automated Edman degradation. Enzyme activity of LmrSP-4 was evaluated upon chromogenic substrates for thrombin (S-2238), plasma kallikrein (S-2302), plasmin and streptokinase-activated plasminogen (S-2251) and Factor Xa (S-2222) and upon fibrinogen. All assays were carried out in the presence or absence of possible inhibitors. The fluorescence resonance energy transfer substrate Abz-KLRSSKQ-EDDnp was used to determine the optimal conditions for LmrSP-4 activity. Molecular mass of LmrSP-4 was determined by MALDI-TOF and digested peptides after trypsin and Glu-C treatments were analyzed by high resolution MS/MS using different fragmentation modes. Results: Fraction S5 showed strong proteolytic activity upon fibrinogen. Its fractionation by reversed-phase chromatography gave rise to 6 main fractions (S5C1-S5C6). S5C1-S5C5 fractions correspond to serine proteinases whereas S5C6 represents a C-type lectin. S5C4 (named LmrSP-4) had its N-terminal determined by Edman degradation up to the 53rd amino acid residue and was chosen for characterization studies. LmrSP-4 is a fibrinogenolytic serine proteinase with high activity against S-2302, being inhibited by PMSF and benzamidine, but not by 1,10-phenantroline. In addition, this enzyme exhibited maximum activity within the pH range from neutral to basic and between 40 and 50 °C. About 68% of the LmrSP-4 primary structure was covered, and its molecular mass is 28,190 Da. Conclusions: Novel serine proteinase isoforms and a lectin were identified in LmrV. Additionally, a kallikrein-like serine proteinase that might be useful as molecular tool for investigating bradykinin-involving process was isolated and partially characterized.(AU)


Assuntos
Plasminogênio , Venenos de Serpentes , Lachesis muta , Serina Proteases , Calicreínas , Espectrometria de Massas por Ionização e Dessorção a Laser Assistida por Matriz , Fosfolipases A2
8.
Arq. bras. neurocir ; 37(1): 63-66, 13/04/2018.
Artigo em Inglês | LILACS | ID: biblio-911379

RESUMO

The vestibular schwannoma is the most common extra-axial tumor of the posterior fossa. Hemorrhage associated with vestibular schwannomas has been described in less than 1% of the cases. The etiology remains unknown; however, some risk factors have been suggested, such as tumor size and tumor growth rate, the vascularity and histopathology of the tumor or even previous treatment with radiosurgery. The present case is of a 74-year-old female patient, who presented to our clinic in December of 2015 after a mild traumatic brain injury. In that context, she did a brain computed tomography (CT) scan and was diagnosed with a vestibular schwannoma­ an incidentaloma. It was decided at that time to treat the patient conservatively because of her comorbidities and the presentation of the disease. In March of 2017, the patient presented again to our clinic with a right peripheral facial paralysis (House-Brackmann [HB] grade IV-VI) and confusion. The CT scan revealed that bleeding around the vestibular schwannoma had caused the clinical presentation. We decided to treat the hydrocephalus with a ventriculoperitoneal shunt. At the time of her last follow-up visit, the confusion symptoms had resolved, and her right-sided facial function had improved to a HB grade II-VI.


Assuntos
Humanos , Feminino , Idoso , Neuroma Acústico , Paralisia Facial , Hidrocefalia
9.
Chem Biodivers ; 15(2)2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29278459

RESUMO

The defatted fractions of the Faramea hyacinthina and F. truncata (Rubiaceae) leaf MeOH extracts showed in vitro non-cytotoxic and anti-dengue virus serotype 2 (DENV2) activity in human hepatocarcinoma cell lineage (HepG2). Submitting these fractions to the developed RP-SPE method allowed isolating the antiviral flavanone (2S)-isosakuranetin-7-O-ß-d-apiofuranosyl-(1→6)-ß-d-glucopyranoside (1) from both species and yielded less active sub-fractions. The new diastereoisomeric epimer pair (2S) + (2R) of 5,3',5'-trihydroxyflavanone-7-O-ß-d-apiofuranosyl-(1→6)-ß-d-glucopyranoside (2a/2b) from F. hyacinthina; the known narigenin-7-O-ß-d-apiofuranosyl-(1→6)-ß-d-glucopyranoside (3) from both species; rutin (4) and quercetin-4'-ß-d-O-glucopyranosyl-3-O-rutinoside (5) from F. hyacinthina, and kaempferol-3-O-rutinoside (6), erythroxyloside A (7) and asperuloside (8) from F. truncata have been isolated from these sub-fractions. Compounds 4 - 8 are reported for the first time in Faramea spp.


Assuntos
Antivirais/farmacologia , Vírus da Dengue/efeitos dos fármacos , Dengue/tratamento farmacológico , Componentes Aéreos da Planta/química , Rubiaceae/química , Antivirais/química , Antivirais/isolamento & purificação , Sobrevivência Celular/efeitos dos fármacos , Dengue/virologia , Relação Dose-Resposta a Droga , Células Hep G2 , Humanos , Testes de Sensibilidade Microbiana , Estrutura Molecular , Folhas de Planta/química , Especificidade da Espécie , Relação Estrutura-Atividade
10.
Int J Neurosci ; 128(3): 295-303, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-28967275

RESUMO

BACKGROUND: Supratentorial hemangioblastoma is an uncommon lesion with few data available. Resemblance to other tumours represents a struggle concerning pre-operative diagnosis and management. OBJECTIVES: The aim of this study was to review the current literature, integrating two new cases with uncommon features. METHODS: A search of English language peer-reviewed articles in PubMed®, Cochrane Library®, Google Scholar® and summary of the current knowledge. RESULTS: A total of 162 cases, with no predominance between von Hippel-Lindau disease and wild-type sporadic lesions. The frontal lobe is the most common topography, followed by the pituitary stalk, with image resemblance to a glioma or a metastasis. From these, 20 cases revealed dural attachment, mimicking a meningioma. Symptoms are due to mass effect or epilepsy, with low haemorrhagic risk. Clinical outcome on supratentorial hemangioblastoma depends on resection extension, with no recognised complementary treatment. Post-operative follow-up is essential, even in wild-type, sporadic cases, concerning recent reports of tumour dissemination. CONCLUSIONS: This review compiles the main characteristics of supratentorial hemangioblastoma, that despite its rarity, should be a concern on differential diagnosis, treatment planning and expected prognosis.


Assuntos
Neoplasias Cerebelares/complicações , Hemangioblastoma/complicações , Doença de von Hippel-Lindau/complicações , Idoso , Neoplasias Cerebelares/diagnóstico por imagem , Feminino , Hemangioblastoma/diagnóstico por imagem , Hemangioblastoma/genética , Hemangioblastoma/patologia , Humanos , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Mutação , Doença de von Hippel-Lindau/diagnóstico por imagem , Doença de von Hippel-Lindau/genética
11.
Arq. bras. neurocir ; 37(3): 247-251, 2018.
Artigo em Inglês | LILACS | ID: biblio-1362852

RESUMO

Germ cell tumors of the central nervous system (CNS) are usually located along the midline. Yolk sac tumor is a rare germ cell tumor very uncommonly located outside the midline, and, in such cases, it can be mistaken with other primary tumors. We report a case of a 32-year-old male patient who presented with a right temporal lobe tumor suggestive of a high grade glioma. He was submitted to a right temporal lobectomy with complete tumor removal. The histological exam revealed a germ cell tumor (later confirmed to be a yolk sac tumor). The search for a primary tumor outside of the CNS (including a positron emission tomography scan) was negative, making this a primary temporal lobe yolk sac tumor. The patient was submitted to chemotherapy and radiotherapy, but died 7 months after the surgery.


Assuntos
Humanos , Masculino , Adulto , Lobo Temporal , Tumor do Seio Endodérmico/tratamento farmacológico , Tumor do Seio Endodérmico/radioterapia , Tumor do Seio Endodérmico/diagnóstico por imagem , Neoplasias Embrionárias de Células Germinativas/diagnóstico , Lobectomia Temporal Anterior/métodos
12.
Arq. bras. neurocir ; 36(1): 14-20, 06/03/2017.
Artigo em Inglês | LILACS | ID: biblio-911114

RESUMO

Objective The treatment of ruptured aneurysms of the posterior circulation is a controversy in neurosurgery. The aim of this work is to describe the experience and results of the early surgical treatment of this pathology at Centro Hospitalar do Porto. Method We retrospectively analyzed the medical records of all patients aged over 18 who, in the period between 1999­2013, were admitted to our center with the diagnosis of ruptured saccular posterior circulation aneurysm. The patients were clinically staged at admission using the Hunt & Hess (H&H) scale. The modified Glasgow Outcome Scale (mGOS) was used to assess the outcome at discharge and after 6 months. Results Between 1999­2013, 59 patients underwent surgery for ruptured posterior circulation aneurysms. Eighty percent of the patients were female, and their average age was 58.7 years. Posterior-inferior cerebellar artery aneurysms accounted for 49.2% of surgeries, while basilar aneurysms accounted for 28.8%. Upon admission, 86.4% of patients were classified as H&H1­3, and 13.6% as H&H4­5. The outcomes at discharge and at 6 months were as follows: at discharge, mGOS1 in 5.1%, mGOS2­3 in 18.6%, and mGOS4­5 in 76.3%; at 6 months, mGOS1 in 10.2%, mGOS2­3 in 10.2%, and mGOS4­5 in 79.6%. There was a statistically significant correlation between basilar aneurysms and worse outcomes (p » 0.011). No correlation was found between the values of the H&H scale upon admission and outcome. Conclusions The functional outcome of our group of patients is mainly in line with what is described in other series from the literature. However, there is a trend toward lower mortality but higher morbidity rates.


Objetivo O tratamento dos aneurismas rotos da circulação posterior é uma controvérsia neurocirúrgica. Pretende-se com este trabalho relatar a experiência e os resultados do tratamento cirúrgico precoce desta patologia no Centro Hospitalar do Porto. Métodos Foram analisados retrospectivamente os processos clínicos dos pacientes com idade > 18 anos que, no período entre 1999­2013, foram admitidos no nosso centro com o diagnóstico de aneurisma sacular roto da circulação posterior. Utilizou-se a escala de Hunt & Hess (H&H) para aferir a gravidade clínica dos pacientes, e a Escala de Outcome de Glagow modificada (mGOS) para aferir o outcome dos pacientes à data da alta e aos 6 meses. Resultados Entre 1999­2013, foram operados 59 pacientes com aneurismas rotos da circulação posterior. Oitenta por centro dos pacientes eram do sexo feminino, com uma média de idade média de 58.7 anos. Aneurismas da artéria cerebelosa posteroinferior foram responsáveis por 49,2% das cirurgias, ao passo que os da artéria basilar, por 28,8%. À admissão, 86,4% dos pacientes eram H&H1­3, e 13,6%, H&H4­5. O outcome à data da alta e aos 6 meses foi o seguinte: à data de alta, mGOS1 em 5,1%, mGOS2­3 em 18,6%, e mGOS4­5 em 76,3%; aos 6 meses, mGOS1 em 10,2%, mGOS2­ 3 em 10,2%, e mGOS4­5 em 79,6%. Verificou-se uma correlação estatisticamente significativa entre aneurismas da basilar e um pior outcome (p » 0,011). Não se verificou qualquer correlação entre os valores da escala de H&H à admissão e o outcome. Conclusões O outcome funcional do nosso grupo de pacientes está em linha com o descrito noutras séries da literatura. Contudo, destaca-se uma tendência para uma mortalidade mais baixa, mas uma morbilidade mais alta no nosso grupo de pacientes.


Assuntos
Humanos , Aneurisma Intracraniano , Aneurisma Roto/cirurgia , Aneurisma Roto/patologia
13.
Int J Biol Macromol ; 97: 770-777, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28093334

RESUMO

Breast cancer is a highly malignant carcinoma and remains the second leading cause of mortality among women. The antitumor effects of metalloproteinases and disintegrins from snake venom on various types of cancer cells have been investigated. In this study, we evaluated the antitumor and antiangiogenic effects on MDA-MB-231 human breast cancer cells and endothelial cells induced by Bothropoidin, a disintegrin-like metalloproteinase isolated from Bothrops pauloensis snake venom. At 24h after treatment at 100µg/mL, Bothropoidin exerted a moderate cytotoxic effect of 30% on MDA-MB-231 versus 10% cytotoxicity against MCF10A (a non-tumorigenic breast cell line), a significant difference that suggests a possible preference by this protein for targets in cancer cells. Early and late apoptosis of MDA-MB-231 was observed after Bothropoidin treatment (10µg/mL and 40µg/mL). Furthermore, this toxin inhibited not only the adhesion of MDA-MB-231 cells in a dose-dependent manner but also cell migration by approximately 45%. In addition, Bothropoidin decreased endothelial cells viability and adhesion in Matrigel and inhibited in vitro angiogenesis in Matrigel stimulated by bFGF, showing significantly fewer formed vessels. The results demonstrated that Bothropoidin has potent in vitro antitumor and antiangiogenic effect and represents a biotechnological tool for elucidating the antitumor effect of disintegrins-like metalloproteinases in cancer cells.


Assuntos
Inibidores da Angiogênese/farmacologia , Antineoplásicos/farmacologia , Bothrops , Venenos de Crotalídeos/enzimologia , Metaloproteases/farmacologia , Inibidores da Angiogênese/isolamento & purificação , Animais , Antineoplásicos/isolamento & purificação , Adesão Celular/efeitos dos fármacos , Linhagem Celular Tumoral , Movimento Celular/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Humanos , Metaloproteases/isolamento & purificação
14.
Neurourol Urodyn ; 36(4): 984-1008, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27564065

RESUMO

AIMS: Terms used in the field of chronic pelvic pain (CPP) are poorly defined and often confusing. An International Continence Society (ICS) Standard for Terminology in chronic pelvic pain syndromes (CPPS) has been developed with the aim of improving diagnosis and treatment of patients affected by chronic pelvic pain syndromes. The standard aims to facilitate research, enhance therapy development and support healthcare delivery, for healthcare providers, and patients. This document looks at the whole person and all the domains (organ systems) in a systematic way. METHODS: A dedicated working group (WG) was instituted by the ICS Standardisation Steering Committee according to published procedures. The WG extracted information from existing relevant guidelines, consensus documents, and scientific publications. Medline and other databases were searched in relation to each chronic pelvic pain domain from 1980 to 2014. Existing ICS Standards for terminology were utilized where appropriate to ensure transparency, accessibility, flexibility, and evolution. Consensus was based on majority agreement. RESULTS: The multidisciplinary CPPS Standard reports updated consensus terminology in nine domains; lower urinary tract, female genital, male genital, gastrointestinal, musculoskeletal, neurological aspects, psychological aspects, sexual aspects, and comorbidities. Each is described in terms of symptoms, signs and further evaluation. CONCLUSION: The document presents preferred terms and definitions for symptoms, signs, and evaluation (diagnostic work-up) of female and male patients with chronic pelvic pain syndromes, serving as a platform for ongoing development in this field. Neurourol. Urodynam. 36:984-1008, 2017. © 2016 Wiley Periodicals, Inc.


Assuntos
Dor Pélvica/classificação , Dor Pélvica/etiologia , Dor Crônica , Feminino , Humanos , Masculino , Dor Pélvica/diagnóstico , Terminologia como Assunto
15.
Neurourol Urodyn ; 36(7): 1673-1676, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27891659

RESUMO

AIMS: To summarize the evidence background for education of good urodynamic practice, especially cystometry. METHODS: A search was done in PubMed for the last 5 years of publications selecting only clinical studies, utilizing the following keywords: cystometry 133 articles and filling cystometry 53 articles. RESULTS: The evidence with regard to clinical setting and cystometry technique, as well as for catheters and transducers type, infused solution and patient position is presented with recommendations. Also the practice of determining bladder filling sensation and capacity and the basis of detrusor storage function diagnosis is educated. CONCLUSIONS: This manuscript provides the evidence background for the practice of cystometry. Neurourol. Urodynam. 9999:XX-XX, 2016. © 2016 Wiley Periodicals, Inc.


Assuntos
Catéteres , Técnicas de Diagnóstico Urológico , Urodinâmica , Humanos
16.
Arq. bras. neurocir ; 35(4): 315-318, 30/11/2016.
Artigo em Inglês | LILACS | ID: biblio-911043

RESUMO

Central Horner syndrome is a rare condition, comprising a unique pathophysiological phenomenon. It results from vascular lesions, head or thoracic trauma. We describe a case of Horner syndrome associated to cervical disc herniation, and first-order neuron compression. To our knowledge, this is the second case reported to date in the literature.


A síndrome de Horner central é uma condição rara, que compreende um fenómeno fisiopatológico singular. Resulta de lesões vasculares, trauma cerebral ou torácico. Descrevemos um caso de síndrome de Horner associado a hérnia de disco cervical, com lesão de primeiro neurónio. De acordo com a revisão, é o segundo caso reportado na literatura.


Assuntos
Humanos , Masculino , Pessoa de Meia-Idade , Síndrome de Horner , Síndrome de Horner/etiologia , Deslocamento do Disco Intervertebral
17.
Rev. Assoc. Paul. Cir. Dent ; 70(1): 38-43, jan.-mar. 2016. tab
Artigo em Português | LILACS, BBO | ID: lil-797051

RESUMO

Objetivo: Identificar a associação entre cárie dentária e placa dental em função do estágio da primeira infância. Materiais e Métodos: Foram examinadas clinicamente 183 crianças de 8 a 69 meses de idade em dois Centros Municipais de Educação Infantil de Curitiba. As crianças foram divididas em dois grupos, de acordo com o estágio da primeira infância, G1 (até 36 meses)e G2 (37 a 69 meses). Experiência de cárie (ceo-d > 0) e presença de placa visível (em pelo menos um incisivo superior) foram avaliadas por um único pesquisador previamente calibrado (Kappainter e intraexaminador> 0,80). As mães responderam a um questionário sobre condições socioeconômicas, hábitos de higiene e alimentação. Os dados foram submetidos à análise bivariada,por meio dos testes de Qui-quadrado de Pearson e Exato de Fisher. Resultados: No grupo G1houve tendência de associação entre experiência de cárie e placa visível (p = 0,053), enquanto no grupo G2 esta associação apresentou-se significativa (p = 0,006). Houve associações entre o padrão de higienização após a alimentação durante a noite e placa visível (p= 0,026) no grupoG1; e entre estado civil das mães e placa visível no grupo G2 (p= 0,043). Conclusão: Dentro da primeira infância, a relação entre cárie dentária e placa visível em dentes anteriores torna-semais evidente com o aumento da idade.


Objective: To identify the association between dental caries and plaque in the different stages of the early childhood. Materials and Methods: 183 children 8-69 months of age from two Municipal Centers of Children Education, in Curitiba, were clinically examined for cariesand visible plaque. Children were divided in two groups according to the different stages ofthe early childhood, G1 (up to 36 months), G2 (37 to 69 months). Caries experience (ceo-d>0)and visible plaque on at least one upper incisor were evaluated by one previously calibrated examiner (kappa>0,80). Mothers were invited to answer a questionnaire about socioeconomic aspects, dental hygiene and feeding habits. Data were submitted to bivariate analysis using Pearson´s chi-square and Fisher´s exact tests. Results:G1 showed a tendency of association between caries experience and visible plaque (p=0,053), while in G2 a significant association wasfound (p=0,006).Association was found in G1 between dental hygiene after feeding during thenight and visible plaque (p=0,026), and between mother´s marital status and visible plaque onG2 (p=0,043). Conclusion: The association between dental caries and visible plaque on anteriorteeth becomes more evident on the late stages of early childhood.


Assuntos
Humanos , Masculino , Feminino , Criança , Cárie Dentária/complicações , Cárie Dentária/diagnóstico , Cárie Dentária/metabolismo , Odontopediatria/métodos , Placa Dentária/complicações , Placa Dentária/diagnóstico
18.
J Biochem ; 157(3): 137-49, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25261583

RESUMO

We present the biochemical and functional characterization of Bothropoidin, the first haemorrhagic metalloproteinase isolated from Bothrops pauloensis snake venom. This protein was purified after three chromatographic steps on cation exchange CM-Sepharose fast flow, size-exclusion column Sephacryl S-300 and anion exchange Capto Q. Bothropoidin was homogeneous by SDS-PAGE under reducing and non-reducing conditions, and comprised a single chain of 49,558 Da according to MALDI TOF analysis. The protein presented an isoelectric point of 3.76, and the sequence of six fragments obtained by MS (MALDI TOF\TOF) showed a significant score when compared with other PIII Snake venom metalloproteinases (SVMPs). Bothropoidin showed proteolytic activity on azocasein, Aα-chain of fibrinogen, fibrin, collagen and fibronectin. The enzyme was stable at pH 6-9 and at lower temperatures when assayed on azocasein. Moreover, its activity was inhibited by EDTA, 1.10-phenanthroline and ß-mercaptoethanol. Bothropoidin induced haemorrhage [minimum haemorrhagic dose (MHD) = 0.75 µg], inhibited platelet aggregation induced by collagen and ADP, and interfered with viability and cell adhesion when incubated with endothelial cells in a dose and time-dependent manner. Our results showed that Bothropoidin is a haemorrhagic metalloproteinase that can play an important role in the toxicity of B. pauloensis envenomation and might be used as a tool for studying the effects of SVMPs on haemostatic disorders and tumour metastasis.


Assuntos
Anticoagulantes/farmacologia , Metaloproteases/farmacologia , Inibidores da Agregação Plaquetária/farmacologia , Proteínas de Répteis/farmacologia , Venenos de Serpentes/enzimologia , Sequência de Aminoácidos , Animais , Anticoagulantes/química , Anticoagulantes/isolamento & purificação , Bothrops , Bovinos , Linhagem Celular Tumoral , Sobrevivência Celular/efeitos dos fármacos , Cromatografia por Troca Iônica , Fibrinogênio/química , Hemorragia/induzido quimicamente , Hidrólise , Metaloproteases/química , Metaloproteases/isolamento & purificação , Camundongos Endogâmicos BALB C , Dados de Sequência Molecular , Inibidores da Agregação Plaquetária/química , Inibidores da Agregação Plaquetária/isolamento & purificação , Proteólise , Proteínas de Répteis/química , Proteínas de Répteis/isolamento & purificação , Espectrometria de Massas por Ionização e Dessorção a Laser Assistida por Matriz
19.
Arch Esp Urol ; 67(8): 692-8, 2014 Oct.
Artigo em Espanhol | MEDLINE | ID: mdl-25306987

RESUMO

OBJECTIVES: The aim of this paper is to analyze the clinical profile of patients with chronic pelvic pain (CPP) to obtain a more accurate and fast clinical diagnosis. METHODS: In this retrospective and descriptive cross-sectional study, we recruited 64 patients with CPP (32 men and 32 women. Patients had confirmed diagnosis of CPP. History was done including past medical history, prior abdominal and pelvic surgery, practice of risk sports, start and evolution of the pain, and number of physicians visited. We evaluated pain intensity with a VAS scale, neuropathic characteristics of the pain with the DN4 questionnaire, anxiety and depression with the HAD Scale (HADS) and disability with the Oswestry Disability Index (ODI ). Pelvic floor evaluation integrated intrapelvic and extrapelvic muscles assessment. RESULTS: Average number of doctors visited was 6.4 for men and 10 for women. The VAS for men was 5.43 (± 2.29), for women 6.89 (± 1.89). The DN4 for men was 4.53 (± 2.2), for women 4.44 (± 2.2). The mean anxiety in men was 10.18 (±4.27) and for women 9 (± 4.6) and mean depression in men was 7.31 (± 4.88) and for women 7.16 (± 4). ODI for men was 26.7% (±2.2), for women 33.75% (± 2.2). CONCLUSION: We have defined a clinical profile of patients with CPP that can enable a better approach to the reality of these patients with diminished quality of life.


Assuntos
Dor Crônica , Dor Pélvica , Qualidade de Vida , Dor Crônica/diagnóstico , Dor Crônica/etiologia , Estudos Transversais , Feminino , Humanos , Masculino , Medição da Dor , Dor Pélvica/diagnóstico , Dor Pélvica/etiologia , Estudos Retrospectivos
20.
Environ Monit Assess ; 186(11): 7807-18, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25096642

RESUMO

Despite the classification as known or suspected human carcinogens, by the International Agency for Research on Cancer, the antineoplastic drugs are extensively used in cancer treatment due to their specificity and efficacy. As human carcinogens, these drugs represent a serious threat to the healthcare workers involved in their preparation and administration. This work aims to contribute to better characterize the occupational exposure of healthcare professionals to antineoplastic drugs, by assessing workplace surfaces contamination of pharmacy and administration units of two Portuguese hospitals. Surface contamination was assessed by the determination of cyclophosphamide, 5-fluorouracil, and paclitaxel. These three drugs were used as surrogate markers for surfaces contamination by cytotoxic drugs. Wipe samples were taken and analyzed by HPLC-DAD. From the total of 327 analyzed samples, in 121 (37 %) was possible to detect and quantify at least one drug. Additionally, 28 samples (8.6 %) indicate contamination by more than one antineoplastic drug, mainly in the administration unit, in both hospitals. Considering the findings in both hospitals, specific measures should be taken, particularly those related with the promotion of good practices and safety procedures and also routine monitoring of surfaces contamination in order to guarantee the appliance of safety measures.


Assuntos
Antineoplásicos/análise , Contaminação de Equipamentos , Substâncias Perigosas/análise , Hospitais , Local de Trabalho , Ciclofosfamida , Monitoramento Ambiental/métodos , Humanos , Exposição Ocupacional/análise , Exposição Ocupacional/estatística & dados numéricos , Farmácias , Portugal
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