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Int. j. morphol ; 37(4): 1422-1428, Dec. 2019. graf
Article in English | LILACS (Americas) | ID: biblio-1040148


Paracetamol (also called acetaminophen, or APAP) overdose causes acute damage to the liver and kidneys in both humans and experimental animal models via the induction of the oxidative stress pathway. We sought to determine whether the combined antioxidants and anti-inflammatory compounds, resveratrol (RES) and quercetin (QUR) can protect against kidney injury induced by a toxic dose of APAP in a rat model of APAP-induced acute kidney injury. Rats were either received a single dose of APAP (2 g/kg) before being sacrificed after 24 hours or were pre-treated for 7 days with combined doses of RES (30 mg/kg) and QUR (50 mg/kg) before being given a single dose of APAP and then sacrificed 24 hours post APAP ingestion. Harvested kidney tissues were prepared for light microscopy staining, and tissue samples were assayed for (i) biomarkers of oxidative stress and antioxidant, malondialdehyde (MDA) and superoxide dismutase (SOD); and (ii) biomarkers of inflammation, tumor necrosis factor-alpha (TNF-α) and interleukin-6 (IL-6). Hematoxylin and eosin (H&E) stained images showed that APAP overdose induced acute kidney injury as demonstrated by widening of glomeruli space (Bowman space), tubular dilatation, numerous cellular debris in the renal tubules with tubular epithelial degeneration, and vacuolization, which were effectively protected by RES+QUR except a partial protection of the glomeruli space was observed. In addition, APAP significantly (p<0.05) modulated tissue levels of MDA, SOD, TNF-α, and IL-6, which were protected by RES+QUR. Furthermore, a significant (p<0.0001) positive correlation was observed between glomeruli space and TNF-α, (r=0.8899), IL-6 (r=0.8986), and MDA (r=0.8552), whereas glomeruli space scoring versus SOD showed negative correlation (r= - 0.7870). We conclude that resveratrol plus quercetin substantially protects against APAP-induced acute kidney injury in rats, possibly via the augmentation of antioxidants and inhibition of oxidative stress and inflammation.

La sobredosis de paracetamol (también llamado acetaminofen o APAP) causa un daño agudo en el hígado y los riñones, tanto en humanos como en modelos animales experimentales, a través de la inducción de la vía del estrés oxidativo. Intentamos determinar si los antioxidantes y los compuestos antiinflamatorios combinados, el resveratrol (RES) y la quercetina (QUR) pueden proteger contra la lesión renal inducida por una dosis tóxica de APAP en un modelo de rata de lesión renal aguda inducida por APAP. Las ratas recibieron una dosis única de APAP (2 g / kg) antes de ser sacrificadas después de 24 horas o se trataron previamente durante 7 días con dosis combinadas de RES (30 mg / kg) y QUR (50 mg / kg), antes de ser tratadas, se administró una dosis única de APAP y luego fueron sacrificadas 24 horas después de la ingestión. Los tejidos renales recolectados se tiñeron con H-E y fueron observados a través de microscopía óptica. Las muestras de tejido se analizaron para (i) biomarcadores de estrés oxidativo y antioxidante, malondialdehído (MDA) y superóxido dismutasa (SOD); y (ii) biomarcadores de inflamación, factor de necrosis tumoral alfa (TNF-α) e interleucina-6 (IL-6). Las imágenes teñidas con H & E mostraron que la sobredosis de APAP indujo daño renal agudo como lo demuestra la ampliación del espacio glomerular, la dilatación tubular, numerosos desechos celulares en los túbulos renales con degeneración epitelial tubular y la vacuolización, que se protegieron eficazmente con RES + QUR Se observó una protección parcial del espacio glomerular. Además, APAP modificó significativamente (p <0.05) los niveles tisulares de MDA, SOD, TNF-α e IL-6, que estaban protegidos por RES + QUR. Además, se observó una correlación positiva significativa (p <0,0001) entre el espacio glomerular y el TNF-α, (r = 0,8899), IL-6 (r = 0,8986) y MDA (r = 0,8552), mientras que la puntuación del espacio glomerular versus SOD mostró correlación negativa (r = - 0,7870). Concluimos que el resveratrol más quercetina protege sustancialmente contra la lesión renal aguda inducida por APAP en ratas, posiblemente a través del aumento de antioxidantes y la inhibición del estrés oxidativo y la inflamación.

Animals , Rats , Quercetin/therapeutic use , Acute Kidney Injury/drug therapy , /therapeutic use , Acetaminophen/toxicity , Quercetin/pharmacology , Oxidative Stress/drug effects , Disease Models, Animal , Drug Therapy, Combination , Acute Kidney Injury/chemically induced , /pharmacology , Acetaminophen/antagonists & inhibitors , Anti-Inflammatory Agents/therapeutic use , Antioxidants/therapeutic use
J. bras. nefrol ; 41(2): 293-295, Apr.-June 2019. graf
Article in English | LILACS (Americas) | ID: biblio-1012528


ABSTRACT Pauci-immune glomerulonephritis (GN) is more common in elderly people compared to children and the etiology is not completely understood yet. Antineutrophil cytoplasmic antibody (ANCA) positivity occurs in 80% of the patients. We report a case of a 7-year-old girl who presented with malaise and mildly elevated creatinine diagnosed as ANCA-associated pauci-immune crescentic glomerulonephritis with crescents in 20 of 25 glomeruli (80%). Of these 20 crescents, 12 were cellular, 4 fibrocellular, and 4 globally sclerotic. She did not have purpura, arthritis, or systemic symptoms and she responded well to initial immunosuppressive treatment despite relatively severe histopathology. The patient was given three pulses of intravenous methylprednisolone (30 mg/kg on alternate days) initially and continued with cyclophosphamide (CYC; 2 mg/kg per day) orally for 3 months with prednisone (1 mg/kg per day). In one month, remission was achieved with normal serum creatinine and prednisone was gradually tapered. The case of this child with a relatively rare pediatric disease emphasizes the importance of early and aggressive immunosuppressive treatment in patients with renal-limited ANCA-associated pauci-immune crescentic GN even if with a mild clinical presentation. As in our patient, clinical and laboratory findings might not always exactly reflect the severity of renal histopathology and thus kidney biopsy is mandatory in such children to guide the clinical management and predict prognosis.

RESUMO A glomerulonefrite (GN) pauci-imune é mais comum em idosos em comparação com crianças, e a etiologia ainda não é completamente compreendida. A positividade do anticorpo citoplasmático antineutrófilo (ANCA) ocorre em 80% dos pacientes. Relatamos o caso de uma menina de 7 anos de idade que apresentou mal-estar e creatinina discretamente elevada, diagnosticada como glomerulonefrite rapidamente progressiva pauci-imune associada a ANCA com crescentes em 20 dos 25 glomérulos (80%). Destes 20 crescentes, 12 eram celulares, 4 fibrocelulares e 4 globalmente escleróticos. Ela não apresentava púrpura, artrite ou sintomas sistêmicos e respondeu bem ao tratamento imunossupressor inicial, apesar da histopatologia relativamente grave. A paciente recebeu três pulsos de metilprednisolona intravenosa (30 mg/kg em dias alternados) inicialmente e continuou com ciclofosfamida (2 mg/kg por dia) por via oral durante 3 meses com prednisona (1 mg/kg por dia). Em um mês, a remissão foi alcançada com creatinina sérica normal e a prednisona foi gradualmente reduzida. O caso desta criança com uma doença pediátrica relativamente rara enfatiza a importância do tratamento imunossupressor precoce e agressivo em pacientes com GN rapidamente progressiva renal associada à ANCA, mesmo com uma apresentação clínica leve. Como em nossa paciente, os achados clínicos e laboratoriais podem nem sempre refletir exatamente a gravidade da histopatologia renal e, assim, a biópsia renal é obrigatória nessas crianças para orientar a conduta clínica e auxiliar no prognóstico.

Humans , Child , Antibodies, Antineutrophil Cytoplasmic/blood , Glomerulonephritis/diagnosis , Glomerulonephritis/blood , Kidney/pathology , Biopsy , Methylprednisolone/administration & dosage , Methylprednisolone/therapeutic use , Prednisone/administration & dosage , Prednisone/therapeutic use , Follow-Up Studies , Treatment Outcome , Creatinine/blood , Cyclophosphamide/administration & dosage , Cyclophosphamide/therapeutic use , Glomerulonephritis/drug therapy , Immunosuppressive Agents/administration & dosage , Immunosuppressive Agents/therapeutic use , Anti-Inflammatory Agents/administration & dosage , Anti-Inflammatory Agents/therapeutic use
J. pediatr. (Rio J.) ; 95(3): 275-281, May-June 2019. tab
Article in English | LILACS (Americas) | ID: biblio-1012612


Abstract Objective: The objective of this review is to provide an overview of the practical diagnostic and therapeutic approaches to eosinophilic esophagitis and to increase the visibility of the disease among pediatricians. Sources: A search of the MEDLINE, Embase, and CINAHL databases and recent consensus statements and guidelines were performed. Summary of the findings: The definition of eosinophilic esophagitis is based on symptoms and histology. It is important to rule out other diseases associated with esophageal eosinophil-predominant inflammation. It is not yet clear whether the increased prevalence is due to a real increase in incidence or a result of increased awareness of the disease. Various options for management have been used in pediatric patients, including proton pump inhibitors, dietary restriction therapies, swallowed topical steroids, and endoscopic dilations. More recently, proton pump inhibitor-responsive esophageal eosinophilia and eosinophilic esophagitis have been contemplated on the same spectrum, and proton pump inhibitors should be considered the initial step in the treatment of these patients. Conclusions: Eosinophilic esophagitis is a relatively new disease with a remarkable progression of its incidence and prevalence in the past two to three decades, and diagnostic criteria that are constantly evolving. It is important to better understand the pathogenesis of the disease, the predisposing factors, the natural history, and the categorization of varying phenotypes to develop diagnostic and therapeutic strategies that meet the clinical needs of patients.

Resumo Objetivo: Fornecer uma visão geral do diagnóstico e do tratamento da esofagite eosinofílica na prática clínica e aumentar a visibilidade da doença entre os pediatras. Fontes dos dados: Foi feita uma busca na literatura relevante nos bancos de dados Medline, Embase, CINAHL e consensos e diretrizes recentes foram revisados. Síntese dos dados: A definição de esofagite eosinofílica é baseada nos sintomas e na histologia. É importante excluir outras doenças associadas com inflamação esofágica predominantemente eosinofílica. Ainda não está claro se o aumento na prevalência é devido a um real aumento da incidência ou se é o resultado da maior suspeição diagnóstica. Várias opções para tratamento, inclusive inibidores de bomba de prótons, restrições dietéticas, esteroides tópicos deglutidos e dilatações endoscópicas têm sido usadas em pacientes pediátricos. Mais recentemente a eosinofilia esofágica responsiva a inibidores de bomba de prótons e a esofagite eosinofílica têm sido contempladas no mesmo espectro e os inibidores de bomba de prótons devem ser considerados como opção inicial no tratamento desses pacientes. Conclusões: A esofagite eosinofílica é uma doença relativamente nova com uma notável progressão da incidência e prevalência nas últimas 2-3 décadas e critérios diagnósticos estão em evolução constante. É importante entender melhor a patogênese dessa doença, os fatores predisponentes, a história natural e a categorização dos diferentes fenótipos para desenvolver estratégias diagnósticas e terapêuticas que vão ao encontro das necessidades clínicas dos pacientes.

Humans , Child , Eosinophilic Esophagitis/diagnosis , Eosinophilic Esophagitis/therapy , Esophagoscopy , Dilatation , Proton Pump Inhibitors/therapeutic use , Anti-Inflammatory Agents/therapeutic use
Rev. Soc. Cardiol. Estado de Säo Paulo ; 29(2): 133-136, abr.-jun. 2019.
Article in Portuguese | LILACS (Americas), SES-SP, SESSP-IDPCPROD, SES-SP | ID: biblio-1009419


As doenças cardiovasculares, principalmente as decorrentes de casos de acidente vascular cerebral e infarto agudo do miocárdio, têm importante impacto na mortalidade global e nas internações hospitalares em todo o mundo. A despeito do vasto conhecimento dos diversos fatores de risco implicados na gênese da doença cardiovascular, o número de eventos ainda se mantém elevado e a instituição de medidas de prevenção primária e secundária são essenciais e complementares. Nos últimos anos, importantes avanços no campo do tratamento farmacológico de aterosclerose e insuficiência cardíaca, predominantemente em decorrência de cardiopatia isquêmica, foram publicados e seus principais resultados são destacados no presente artigo

Cardiovascular diseases, particularly those arising from cases of stroke and acute myocardial infarction, have a significant impact on global mortality and hospital admissions around the world. Despite the vast knowledge of the various risk factors involved in the genesis of cardiovascular disease, the number of events remains high and institution of primary and secondary prevention measures is essential and complementary. In recent years, important advances in the field of pharmacological treatment of atherosclerosis and heart failure, particularly those arising from ischemic heart disease, have been published. The main results are highlighted in this article

Humans , Male , Female , Cardiovascular Diseases/mortality , Cardiovascular Diseases/prevention & control , Secondary Prevention/methods , Therapeutics/methods , Risk Factors , Diabetes Mellitus , Atherosclerosis , Canagliflozin/therapeutic use , Rivaroxaban/therapeutic use , Valsartan/therapeutic use , Heart Failure , Anti-Inflammatory Agents/therapeutic use , Motor Activity
An. bras. dermatol ; 94(2,supl.1): 33-47, Mar.-Apr. 2019. graf
Article in English | LILACS (Americas) | ID: biblio-1011091


Abstract: Bullous pemphigoid, mucous membrane pemphigoid and epidermolysis bullosa acquisita are subepidermal autoimmune blistering diseases whose antigenic target is located at the basement membrane zone. Mucous membrane pemphigoid and epidermolysis bullosa acquisita can evolve with cicatricial mucosal involvement, leading to respiratory, ocular and/or digestive sequelae with important morbidity. For each of these dermatoses, a literature review covering all therapeutic options was performed. A flowchart, based on the experience and joint discussion among the authors of this consensus, was constructed to provide treatment orientation for these diseases in Brazil. In summary, in the localized, low-risk or non-severe forms, drugs that have immunomodulatory action such as dapsone, doxycycline among others may be a therapeutic option. Topical treatment with corticosteroids or immunomodulators may also be used. Systemic corticosteroid therapy continues to be the treatment of choice for severe forms, especially those involving ocular, laryngeal-pharyngeal and/or esophageal mucosal involvement, as may occur in mucous membrane pemphigoid and epidermolysis bullosa acquisita. Several immunosuppressants are used as adjuvant alternatives. In severe and recalcitrant cases, intravenous immunoglobulin is an alternative that, while expensive, may be used. Immunobiological drugs such as rituximab are promising drugs in this area. Omalizumab has been used in bullous pemphigoid.

Humans , Epidermolysis Bullosa Acquisita/drug therapy , Pemphigoid, Benign Mucous Membrane/drug therapy , Pemphigoid, Bullous/drug therapy , Consensus , Prognosis , Societies, Medical , Brazil , Epidermolysis Bullosa Acquisita/diagnosis , Pemphigoid, Benign Mucous Membrane/diagnosis , Pemphigoid, Bullous/diagnosis , Adrenal Cortex Hormones/therapeutic use , Dermatology , Immunosuppressive Agents/therapeutic use , Anti-Inflammatory Agents/therapeutic use
An. bras. dermatol ; 94(2,supl.1): 67-75, Mar.-Apr. 2019. tab, graf
Article in English | LILACS (Americas) | ID: biblio-1011092


Abstract: BACKGROUND: Atopic dermatitis is a highly prevalent inflammatory and pruritic dermatosis with a multifactorial etiology, which includes skin barrier defects, immune dysfunction, and microbiome alterations. Atopic dermatitis is mediated by genetic, environmental, and psychological factors and requires therapeutic management that covers all the aspects of its complex pathogenesis. OBJECTIVES: The aim of this article is to present the experience, opinions, and recommendations of Brazilian dermatology experts regarding the therapeutic management of atopic dermatitis. METHODS: Eighteen experts from 10 university hospitals with experience in atopic dermatitis were appointed by the Brazilian Society of Dermatology to organize a consensus on the therapeutic management of atopic dermatitis. The 18 experts answered an online questionnaire with 14 questions related to the treatment of atopic dermatitis. Afterwards, they analyzed the recent international guidelines on atopic dermatitis of the American Academy of Dermatology, published in 2014, and of the European Academy of Dermatology and Venereology, published in 2018. Consensus was defined as approval by at least 70% of the panel. RESULTS/CONCLUSION: The experts stated that the therapeutic management of atopic dermatitis is based on skin hydration, topical anti-inflammatory agents, avoidance of triggering factors, and educational programs. Systemic therapy, based on immunosuppressive agents, is only indicated for severe refractory disease and after failure of topical therapy. Early detection and treatment of secondary bacterial and viral infections is mandatory, and hospitalization may be needed to control atopic dermatitis flares. Novel target-oriented drugs such as immunobiologicals are invaluable therapeutic agents for atopic dermatitis.

Humans , Consensus , Dermatitis, Atopic/drug therapy , Societies, Medical , Ultraviolet Therapy , Severity of Illness Index , Brazil , Administration, Topical , Adrenal Cortex Hormones/therapeutic use , Dermatology , Calcineurin Inhibitors/therapeutic use , Anti-Infective Agents/therapeutic use , Anti-Inflammatory Agents/therapeutic use
J. bras. nefrol ; 41(1): 145-151, Jan.-Mar. 2019. tab, graf
Article in English | LILACS (Americas) | ID: biblio-1002413


ABSTRACT Introduction: Anemia is a frequent multifactorial complication of CKD seen in patients on dialysis derived mainly from impaired erythropoietin (EPO) production. A less common cause of anemia in individuals with CKD is pure red cell aplasia (PRCA) secondary to the production of anti-EPO antibodies. Objective: This paper aimed two describe two cases of PRCA secondary to the production of anti-EPO antibodies including choice of treatment, patient progression, and a literature review. Materials: This study included the cases of two patients with CKD on hemodialysis with severe anemia in need of specific investigation and management. Results: Patient 1 with CKD secondary to hypertension treated with EPO for 7 months showed persistent decreases in hemoglobin (Hb) levels despite the subcutaneous administration of increasing doses of EPO; the patient required recurring blood transfusions. Workup and imaging tests were negative for the main causes of anemia in individuals with CKD on dialysis. Patient 2 with CKD secondary to adult polycystic kidney disease had been taking EPO for 2 years. The patient developed severe abrupt anemia the month he was started on HD, and required recurring transfusions to treat the symptoms of anemia. Workup and imaging findings were inconclusive. Specific laboratory tests confirmed the patients had anti-EPO antibodies. After six months of immunosuppressant therapy (corticosteroids + cyclosporine) the patients were stable with Hb > 9.0 g/dl. Conclusion: PRCA is a rare condition among patients on dialysis treated with rhEPO and should be considered as a possible cause of refractory anemia. Treating patients with PRCA may be challenging, since the specific management and diagnostic procedures needed in this condition are not always readily available.

RESUMO Introdução: Anemia é complicação frequente da Doença Renal Crônica (DRC) em pacientes dialíticos. Apresenta caráter multifatorial principalmente pela insuficiente produção de eritropoietina (EPO). Situação rara causadora de anemia na DRC é Aplasia Pura de Células Vermelhas (APCV), em decorrência da produção de anticorpos anti-EPO. Objetivo: Descrever 2 casos de APCV com formação de anticorpos anti-EPO, sua abordagem clínica, evolução e revisão de literatura. Métodos: Dois pacientes em hemodiálise que desenvolveram anemia grave, necessitando investigação e manejo específico. Resultados: Paciente nº 1: feminina, 75 anos, DRC secundária à hipertensão arterial. Após 7 meses com EPO desenvolveu queda persistente em valores de hemoglobina (Hb) mesmo com incremento em doses EPO SC, necessitando transfusões de sangue recorrentes. Extensa investigação laboratorial e de imagem resultou negativa para principais causas de anemia. Paciente nº 2: masculino, 66 anos, DRC secundária à DRPA, há 2 anos em uso de EPO. No mês de entrada em HD desenvolveu anemia severa, também exigindo transfusões recorrentes para tratamento da anemia sintomática. Extensa investigação laboratorial e por imagem, sem chegar a uma conclusão definitiva. Em ambos os casos a presença de anticorpos anti-EPO foi confirmada por exames laboratoriais específicos. Terapia imunossupressora resultou em estabilização do quadro e Hb > 9,0 g/dl em ambos os pacientes, 6 meses após início do tratamento. Conclusão: APCV é condição rara entre pacientes dialíticos que recebem EPOHuR e deve ser lembrada como causa de anemia refratária. Seu manejo específico e diagnóstico laboratorial nem sempre acessível, tornando desafiadora a condução dos casos para o nefrologista.

Humans , Male , Female , Aged , Recombinant Proteins/therapeutic use , Erythropoietin/immunology , Erythropoietin/therapeutic use , Renal Dialysis/adverse effects , Red-Cell Aplasia, Pure/etiology , Antibodies, Neutralizing/blood , Kidney Failure, Chronic/drug therapy , Recombinant Proteins/adverse effects , Prednisone/administration & dosage , Prednisone/therapeutic use , Erythropoietin/biosynthesis , Erythropoietin/adverse effects , Kidney Transplantation , Treatment Outcome , Cyclosporine/administration & dosage , Cyclosporine/therapeutic use , Red-Cell Aplasia, Pure/drug therapy , Immunosuppressive Agents/administration & dosage , Immunosuppressive Agents/therapeutic use , Anti-Inflammatory Agents/administration & dosage , Anti-Inflammatory Agents/therapeutic use
J. bras. nefrol ; 41(1): 142-144, Jan.-Mar. 2019. graf
Article in English | LILACS (Americas) | ID: biblio-1002417


ABSTRACT Atheroembolic renal disease (AERD) is a kidney manifestation of atherosclerosis as a systemic disease. AERD is defined as a renal impairment secondary to embolization of cholesterol crystals with consequent occlusion of renal vascularization. The current case report describes one patient with multiple risk factors but without any inciting event history who presents a very atypical clinical course of a severe and massive atheroembolic disease that developed spontaneously and silently.

RESUMO A doença renal ateroembólica (DRAE) é uma manifestação renal da aterosclerose enquanto patologia sistêmica. A DRAE é definida como uma disfunção renal secundária à embolização de cristais de colesterol seguida da oclusão da vascularização renal. O presente relato descreve o caso de um paciente com vários fatores de risco, porém sem um evento precipitante, que se apresentou com um curso clínico bastante atípico de doença ateroembólica grave de evolução espontânea e silenciosa.

Humans , Male , Aged , Renal Insufficiency/diagnostic imaging , Atherosclerosis/complications , Dyslipidemias/complications , Hypertension/complications , Biopsy , Platelet Aggregation Inhibitors/therapeutic use , Hypertriglyceridemia , Aspirin/therapeutic use , Hydroxymethylglutaryl-CoA Reductase Inhibitors/therapeutic use , Creatinine/blood , Diabetes Mellitus, Type 2/complications , Diabetic Nephropathies/etiology , Renal Insufficiency/etiology , /therapeutic use , Hypercholesterolemia , Kidney/pathology , Microscopy , Anti-Inflammatory Agents/therapeutic use
Acta cir. bras ; 34(1): e20190010000003, 2019. tab, graf
Article in English | LILACS (Americas) | ID: biblio-983683


Abstract Purpose: To investigate the influence of lycium barbarum polysaccharides (LBP), a functional derivative from lycium barbarum, on septic kidney injury. Methods: The SD male rats were randomly divided into 8 groups. The concentration of IL-1β, IL-6, IL-8, TNF-α, NF-κB and ROS, in kidney cortex homogenates after 12 h treatments were determined by enzyme-linked immunosorbent assay and ROS test kit, respectively. Morphology observation of kidney tissue was conducted with HE staining. The mRNA and protein expression levels of Nrf2, HO-1, NQO1, NF-κB, and Keap1 in kidney tissues were determined by qRT-PCR and Western blot, respectively. Results: LPS treatment significantly increased the oxidative stress. After LBP treatment, the ROS content reduced significantly in a dose-depend manner. However, the levels of HO-1, NQO1 and Nrf2 as molecular elements that respond to oxidative stress were further increased. Also, administration of LBP increased the levels of NF-κB and Keap1, and decreased the levels of Nrf2 in the Keap 1-Nrf2∕ARE signaling pathway. By administrating the brusatol, the inhibition of Nrf2 enhanced the expression of NF-κB, inhibits the antioxidant responses, and further reverse the protective effect of LBP on the LPS induced septic kidney injury. Conclusion: Lycium barbarum polysaccharides can reduce inflammation and activate the antioxidant responses via regulating the level of pro-inflammatory cytokines and the Keap1-Nrf2/ARE signaling pathway.

Animals , Male , Rats , Drugs, Chinese Herbal/therapeutic use , Oxidative Stress/drug effects , NF-E2-Related Factor 2/metabolism , Acute Kidney Injury/drug therapy , Anti-Inflammatory Agents/therapeutic use , Signal Transduction/drug effects , Cytokines/drug effects , Disease Models, Animal
Gastroenterol. latinoam ; 30(supl.1): S35-S38, 2019. tab, ilus
Article in Spanish | LILACS (Americas) | ID: biblio-1116420


Microscopic colitis (MC) is a clinical condition characterized by chronic watery diarrhea, normal colonic mucosa and characteristic histological findings. It is composed of two main entities: collagenous colitis (CC) and lymphocytic colitis (LC). Its incidence has been increasing, currently accounting for between 8 to 16% of studies for chronic diarrhea. It is more frequent in elderly women and is strongly associated with other autoimmune disorders. Its pathogenesis is not very well understood, but it supposes the immune activation secondary to the exposure of the colonic mucosa to different luminal antigens, mainly drugs. Management includes suspension of the potential causative agent and the use of anti-diarrheal medications. Oral budesonide has proven to be effective in induction and maintenance of remission, but with a high rate of recurrence upon discontinuation. Immune-modulators drugs such as azatioprine and metrotrexate have been tested in patients dependent to corticoids with variable results. Antibodies against tumor necrosis factors (TNF) are under studies, with promising results.

La colitis microscópica (CM) es una condición clínica caracterizada por diarrea crónica acuosa con mucosa colónica normal y hallazgos histológicos característicos. Está compuesta por dos entidades principales: la colitis colágena (CC) y la colitis linfocítica (CL). Su incidencia ha ido en aumento, siendo en la actualidad la responsable del 8 a 16% de los casos por diarrea crónica. Es más frecuente en mujeres de edad avanzada con una fuerte asociación a otras enfermedades autoinmunes. Su etiopatogenia no es del todo conocida, pero se cree juega un rol la activación inmune secundaria a la exposición de la mucosa colónica a diferentes antígenos luminales, principalmente fármacos. Dentro del manejo se incluye la suspensión del potencial agente causal y el uso de fármacos antidiarreicos. La budesonida oral ha demostrado alta efectividad en la inducción y mantención de la remisión, pero con una alta tasa de recurrencia al suspenderla. Fármacos inmunomoduladores como azatioprina y metrotrexato se han probado en pacientes corticodependendientes con resultados variables. El uso de anticuerpos monoclonales anti factor de necrosis tumoral (TNF) se encuentra en estudio, con resultados prometedores.

Humans , Colitis, Microscopic/diagnosis , Colitis, Microscopic/drug therapy , Anti-Inflammatory Agents/therapeutic use , Antidiarrheals/therapeutic use , Mesalamine/therapeutic use , Budesonide/therapeutic use , Colitis, Microscopic/etiology , Colitis, Collagenous/diagnosis , Colitis, Collagenous/drug therapy , Colitis, Lymphocytic/diagnosis , Colitis, Lymphocytic/drug therapy , Diarrhea/etiology
Acta cir. bras ; 34(9): e201900904, 2019. tab, graf
Article in English | LILACS (Americas) | ID: biblio-1054694


Abstract Purpose: Ganoderma lucidum, a kind of mushroom used for its antioxidant, anti-inflammatory, and immunomodulatory activities, was investigated in the present study for its possible healing effect on calvarial defects with bone grafts. Methods: Wistar male rats (n = 30) were divided into 3 groups: 1) the control (defect) group (n = 10), 2) defect and graft group (n = 10), and 3) defect, graft, and G. lucidum treated group (n = 10). The G. lucidum was administered to the rats at 20 mL/kg per day via gastric lavage. Results: In the defect and graft group, osteonectin positive expression was observed in osteoblast and osteocyte cells at the periphery of the small bone trabeculae within the graft area. In the defect, graft, and G. lucidum treated group, osteonectin expression was positive in the osteoblast and osteocyte cells and positive osteonectin expression in new bone trabeculae. The expression of matrix metalloproteinase-9 (MMP-9) was positive in the inflammatory cells, fibroblast cells, and degenerated collagen fibril areas within the defect area. Conclusion: This study shows that, with its antioxidant and anti-inflammatory properties, G. Lucidum is an important factor in the treatment of calvarial bone defects.

Animals , Male , Rats , Skull/surgery , Bone Regeneration/drug effects , Bone Transplantation , Reishi/chemistry , Anti-Inflammatory Agents/therapeutic use , Antioxidants/therapeutic use , Skull/drug effects , Immunohistochemistry , Osseointegration/drug effects , Rats, Wistar , Disease Models, Animal
Rev. Asoc. Argent. Ortop. Traumatol ; 83(4): 283-290, dic. 2018. ilus
Article in Spanish | LILACS (Americas) | ID: biblio-984995


La osteomielitis crónica recurrente multifocal es un trastorno inflamatorio estéril en las extremidades. Afecta principalmente a niños simulando una osteomielitis infecciosa. Puede estar asociada a trastornos inflamatorios cutáneos y del tracto intestinal. Los niveles de reactantes de fase aguda están normales o levemente altos. Las radiografías muestran lesiones osteolíticas rodeadas por esclerosis, pero pueden ser normales al inicio de la enfermedad. Identificar las características propias de la enfermedad y descartar una etiología infecciosa permiten establecer un diagnóstico oportuno y ofrecer el manejo adecuado. Se presentan tres casos de esta patología. Un hombre de 24 años con síntomas inflamatorios persistentes y recidivantes en el tobillo derecho, de 8 años de evolución. Una niña de 11 años que acude reiterativamente por dolor en hemitórax, clavícula derecha y tobillo izquierdo, y una niña de 12 años con múltiples episodios breves de síntomas inflamatorios en ambos tobillos. Los tres casos, sin leucocitosis, reactantes de fase aguda levemente aumentados o negativos, con criterios mayores y menores de Jasson para diagnóstico de esta patología. Los cuadros mejoraron con antinflamatorios no esteroides. Es importante conocer esta rara entidad como posibilidad diagnóstica, pues un diagnóstico oportuno evita el uso innecesario de antibióticos y la resolución del cuadro se logra con antinflamatorios no esteroides, sin necesidad de procedimientos quirúrgicos que aumentan las comorbilidades. Nivel de Evidencia: V

Chronic recurrent multifocal osteomyelitis is a sterile inflammatory limb disorder. It mainly affects children simulating an infectious osteomyelitis. It may be associated with inflammatory skin and intestinal tract disorders. Acute phase reactant levels are normal or slightly high. X-rays show osteolytic injuries surrounded by sclerosis, which may be normal at the beginning of the disease. A timely diagnosis based on identifying the disease characteristics and ruling out an infectious etiology, allows to indicate the proper treatment. We present three patients with this pathology. A 24-year-old man with persistent and recurrent inflammatory symptoms in the right ankle, that evolved for 8 years. An 11-year-old girl who periodically attends due to pain in hemithorax, right clavicle and left ankle; and a 12-year-old girl with multiple brief episodes of inflammatory symptoms in both ankles. The three cases, without leukocytosis, acute phase reactants slightly increased or negative, with major and minor Jasson's diagnosis criteria for this pathology. These conditions improved with non-steroidal anti-inflammatory drugs. It is important to know this rare condition as a diagnostic possibility, as a timely diagnosis prevents unnecessary use of antibiotics and it may resolve with a simple therapy of non-steroidal anti-inflammatory drugs, without the need of surgical procedures that increase comorbidities. Level of Evidence: V

Child , Adolescent , Adult , Osteomyelitis , Anti-Inflammatory Agents/therapeutic use , Recurrence , Chronic Disease
Acta cir. bras ; 33(7): 565-576, July 2018. tab, graf
Article in English | LILACS (Americas) | ID: biblio-949365


Abstract Purpose: To investigate the possible effects of argan oil on the healing of colorectal anastomoses. Methods: I n Group 1 (sham), laparotomy was performed and the colon was mobilized. In the control (Group 2) and argan oil (Group 3) groups, colonic resection and anastomosis were applied. To the control and sham groups, 2 mL of 0.9% NaCl was administred rectally, and in the argan oil group, 2 mL/day argan oil was applied rectally for 7 days. Results: The mean bursting pressures of the argan oil and sham groups were significantly higher than the values in the control group. A significant difference was determined between the tissue hydroxyproline and prolidase levels of control group and other groups. Histopathologically, argan oil showed significant beneficial effects on colonic wound healing. In the argan oil and sham groups, the tissue malondialdehyde and fluorescent oxidation product levels were found to be lower and total sulfhydryl levels were higher than the control group. Conclusions: The rectally administered argan oil was observed to have significantly ameliorated wound healing parameters and exerted a significant antioxidant effect. This is the first study in the literature about the beneficial effects of argan oil on colorectal anastomoses.

Animals , Female , Rectum/surgery , Wound Healing/drug effects , Plant Oils/therapeutic use , Colon/surgery , Anti-Inflammatory Agents/therapeutic use , Antioxidants/therapeutic use , Oxidoreductases/analysis , Rectum/pathology , Spectrophotometry , Anastomosis, Surgical , Random Allocation , Reproducibility of Results , Collagen/analysis , Treatment Outcome , Rats, Wistar , Colon/pathology , Oxidative Stress/drug effects , Dipeptidases/analysis , Surgical Wound/pathology , Surgical Wound/drug therapy , Hydroxyproline/analysis , Malondialdehyde/analysis
Braz. dent. j ; 29(1): 23-29, Jan.-Feb. 2018. tab
Article in English | LILACS (Americas) | ID: biblio-888719


Abstract This trial evaluated the preemptive and postoperative effect of dexamethasone and ibuprofen on prevention of pain/discomfort, edema and interference in daily life in patients undergoing root coverage combined with subepithelial connective tissue graft (CAF + CTG). Twenty patients were randomly assigned as follows: NSAID Group: 400mg Ibuprofen 60 min preemptive + 400mg Ibuprofen postoperative; or SAID Group: 4mg Dexamethasone 60 min preemptive + 4mg Dexamethasone postoperative. The postoperative medication was administered 8 and 16 h post-surgery. Each patient received questionnaires based on a numeric scale (101-point numeric scale rate [NRS-101]) and multiple choice questions (four-point verbal rating scale [VRS-4]) about trans-operative pain/discomfort, hourly for 8 h after surgery and once a day for three days. A Visual Analogue Scale (VAS) for edema and interference in daily life during the 1st, 2nd, 3rd and 7th day was also answered. The degree of anxiety was rated statistically by the Chi-square test. The Mann-Whitney and Friedman tests were used for the other questionnaires. The surgery time and number of analgesic pills consumed were compared using Student's t-test. Patients who used dexamethasone presented a trend toward less pain when compared to individuals who ingested ibuprofen, with a significant difference observed 3 h after the procedure (p<0.05). The use of dexamethasone also promoted less edema until the 2nd day and lower interference in daily life on the third day when compared with ibuprofen (p<0.05). We concluded that the use of dexamethasone as a preemptive and postoperative medication was more suitable as a drug therapeutic protocol for CAF + CTG.

Resumo Este estudo avaliou o efeito preventivo e pós-operatório de dexametasona e ibuprofeno na prevenção da dor, desconforto, edema e interferência na vida diária, em pacientes submetidos ao recobrimento radicular associado a enxerto de tecido conjuntivo subepitelial (CAF + CTG). Vinte pacientes foram divididos aleatoriamente: Grupo AINES: Ibuprofeno 400 mg 60 min antes da cirurgia + Ibuprofeno 400 mg no período pós-operatório e Grupo AIES: 4 mg de dexametasona 60 min antes da cirurgia + Dexametasona 4mg no pós-operatório. A medicação pós-operatória foi administrada 8 e 16 horas pós-cirurgia. Cada paciente recebeu questionários com base na escala numérica NRS-101 (101 pontos numéricos) e perguntas de múltipla escolha (VRS-4) sobre dor / desconforto no período transoperatório, de hora em hora durante 8 h e uma vez por dia durante três dias após a cirurgia. A Escala Visual Analógica (VAS) para análise de edema e interferência na vida diária também foi respondida no 1º, 2º, 3º e 7º dia após a cirurgia. O grau de ansiedade foi estatisticamente avaliado pelo teste do Qui-quadrado. Mann-Whitney e Friedman foram utilizados para os demais questionários. Para o tempo de cirurgia e o número de analgésicos consumidos, o teste t de Student foi aplicado. Os pacientes que utilizaram dexametasona apresentaram uma tendência para menores níveis de dor quando comparados aos indivíduos que ingeriram ibuprofeno, com diferença significativa observada 3 h após o procedimento cirúrgico (p<0,05). A utilização de dexametasona também promoveu menores níveis de edema até ao segundo dia e menor interferência na vida diária no terceiro dia, quando comparada com o ibuprofeno (p<0,05). Concluiu-se que a utilização de dexametasona como medicamento preventivo e pós-operatório mostra ser mais adequado como protocolo medicamentosos para cirurgias de recobrimento radicular com associação de enxerto de tecido conjuntivo.

Humans , Male , Female , Adult , Middle Aged , Aged , Anti-Inflammatory Agents/therapeutic use , Connective Tissue/transplantation , Dexamethasone/administration & dosage , Ibuprofen/administration & dosage , Periodontal Diseases/surgery , Tooth Root , Double-Blind Method , Pain, Postoperative/prevention & control , Patient Satisfaction , Surveys and Questionnaires
Acta cir. bras ; 33(2): 134-143, Feb. 2018. tab, graf
Article in English | LILACS (Americas) | ID: biblio-886257


Abstract Purpose: To investigate the effects of pycnogenol on peritoneal adhesions and additionally to investigate the immunohistochemical effects of free oxygen radicals and reactive lymph nodes detected in the adhesive tissue that was sampled surrounding the cecum on intra-abdominal adhesions. Methods: Twenty-seven Wistar Albino rats were divided into three groups. In group 1 (sham), laparotomy was performed and stitched up. In group 2 (control), after laparotomy was performed, punctate hemorrhage was induced by cecal abrasion in the cecum and each rat was intraperitoneally administered 2 cc of saline. In group 3 (experimental), after laparotomy was performed, punctate hemorrhage was induced by cecal abrasion in the cecum and each rat was intraperitoneally administered a sterile Pycnogenol derivative. The rats in all groups were re-laparotomized on postoperative day 7; samples were obtained from the peritoneal tissue surrounding the cecum, and the rats were sacrificed. Results: In group 3, there was a statistically significant difference in terms of inflammation, lymph node size, and free oxygen radicals; these parameters tended to increase. In terms of fibrosis evaluated using H&E and MT, there was no significant difference between groups 2 and 3. Conclusions: No positive outcomes indicating that pycnogenol reduces intra-abdominal adhesions were obtained. However, it caused severe inflammation in the tissue. Moreover, a significant increase in lymph node size was detected secondary to inflammation. Additionally, in immunohistochemical analyses conducted to detect oxidative stress, pycnogenol increased the production of free oxygen radicals in the tissue.

Animals , Rats , Peritoneal Diseases/prevention & control , Peritoneum/surgery , Flavonoids/therapeutic use , Tissue Adhesions/prevention & control , Peritoneal Diseases/etiology , Peritoneum/pathology , Postoperative Complications , Flavonoids/adverse effects , Immunohistochemistry , Plant Extracts , Tissue Adhesions/etiology , Tissue Adhesions/pathology , Reactive Oxygen Species/metabolism , Rats, Wistar , Oxidative Stress/drug effects , Disease Models, Animal , Free Radicals/analysis , Inflammation/chemically induced , Inflammation/pathology , Laparotomy , Lymph Nodes/drug effects , Lymph Nodes/pathology , Anti-Inflammatory Agents/therapeutic use , Antioxidants/therapeutic use
An. bras. dermatol ; 93(1): 119-121, Jan.-Feb. 2018. graf
Article in English | LILACS (Americas) | ID: biblio-887141


Abstract: Panniculitis is a rare clinical finding in dermatomyositis, with less than 30 cases reported and there is only one case associated with the amyopathic subtype described in the literature. The present report describes a 49-year-old female patient that one year after being diagnosed with amyopathic dermatomyositis, presented indurated, painful, erythematous to violaceous nodules located on the upper limbs, thighs and gluteal region. Skin biopsy revealed lobular panniculitis with a lymphocytic infiltrate. The patient was treated with prednisone and methotrexate, but remained unresponsive to treatment.

Humans , Female , Middle Aged , Prednisone/therapeutic use , Panniculitis/drug therapy , Methotrexate/therapeutic use , Dermatologic Agents/therapeutic use , Dermatomyositis/drug therapy , Anti-Inflammatory Agents/therapeutic use , Panniculitis/pathology , Treatment Failure , Dermatomyositis/pathology
Periodontia ; 28(2): 32-42, 2018. ilus
Article in Portuguese | LILACS (Americas), BBO | ID: biblio-908861


A romã (Punica granatum) possui uma vasta história médica conhecida por sua ação antibacteriana, antioxidante e anti-inflamatória. A presente revisão teve como objetivo verificar os potenciais efeitos terapêuticos do uso de produtos derivados da P. granatum como coadjuvante no tratamento das doenças periodontais. Descritores em inglês e português dos termos: "romã", "doença periodontal", "gengivite", "periodontite" e "punica granatum", foram utilizados para consulta nas bases de dados Pubmed, Lilacs e Scielo. Para avaliação dos efeitos anti-inflamatórios, antimicrobianos e clínicos da romã foram incluídos trabalhos clínicos e pré-clínicos, sem restrições de data. Os diferentes estudos selecionados avaliaram P. granatum em diferentes formulações, incluindo bochechos, géis, infusão, dentifrícios, e chips biodegradáveis. Os resultados demostraram que os componentes fitoquímicos de P. granatum, como polifenóis flavonoides, punicalaginas, ácido punícico e antocinas apresentam propriedades relevantes pró-saúde periodontal, que incluem efeitos anti-inflamatórios, antioxidantes, hemostáticos e imunoregulatórios. Estudos in vivo utilizando diferentes formulações da romã em participantes acometidos por gengivite ou periodontite apresentaram reduções nos índices de placa, sangramento gengival e profundidade de sondagem em graus variados. Conclui-se que P. granatum pode ser uma promissora alternativa à terapia antimicrobiana padrão, para auxílio do controle mecânico de placa, com melhora dos sinais clínicos das doenças periodontais. Contudo, mais estudos clínicos ainda são necessários. (AU)

The pomegranade (Punica granatum) has a vast medical history know by its antibacterial, antioxidant and antiinflammatory action. The presente review aimed at verifying the potential therapeutic effects of products derived from P. granatum as adjuvant in the treatment of periodontal diseases. English and Portugueses descriptors of the terms "pomegranate", "periodontal disease", "gingivitis", "periodontitis" and "Punica granatum" were used for search in Pubmed, Lilacs and Scielo databases. To assess the anti-inflammatory, antimicrobial and clinical effects of pomegranate, clinical and preclinical were included, with no date restrictions. The different studies evaluated P. granatum in different formulations, including mouthwash, gels, infusion, dentifrices, and biodegradable chips. Results showed that the phytochemical components of P. granatum, such as polyphenois flavonoids, punicalagins, punicic acid and antocines, demonstrated relevant periodontal prohealth properties, including anti-inflammatory, antioxidant, hemostatic and immunoregulatory effects. In vivo studies, using different pomegranade formulations in individuals affected by gingivitis or periodontitis, showed reductions in plaque index, gingival bleeding and probing depth in different levels. It was concluded that P. granatum could be a promising alternative to the standard antimicrobial therapy in order to aid the mechanical control of plaque, with improvement of clinical signs of periodontal diseases. However, more clinical studies are still necessary. (AU)

Anti-Infective Agents/therapeutic use , Anti-Inflammatory Agents/therapeutic use , Gingivitis , Periodontal Diseases/classification , Periodontal Diseases/complications , Periodontitis , Lythraceae
Braz. j. med. biol. res ; 51(5): e7132, 2018. graf
Article in English | LILACS (Americas) | ID: biblio-889081


Gastroschisis (GS) is an abdominal wall defect that results in histological and morphological changes leading to intestinal motility perturbation and impaired absorption of nutrients. Due to its anti-inflammatory, antioxidant, and neuroprotective effects, cannabidiol (CBD) has been used as a therapeutic agent in many diseases. Our aim was to test the effect of maternal CBD in the intestine of an experimental model of GS. Pregnant rats were treated over 3 days with CBD (30 mg/kg) after the surgical induction of GS (day 18.5 of gestation) and compared to controls. Fetuses were divided into 4 groups: 1) control (C); 2) C+CBD (CCBD); 3) gastroschisis (G), and 4) G+CBD (GCBD). On day 21.5 of gestation, the fetuses were harvested and evaluated for: a) body weight (BW), intestinal weight (IW), and IW/BW ratio; b) histometric analysis of the intestinal wall; c) immunohistochemically analysis of inflammation (iNOS) and nitrite/nitrate level. BW: GCBD was lower than CCBD (P<0.005), IW and IW/BW ratio: GCBD was smaller than G (P<0.005), GCBD presented lower thickness in all parameters compared to G (P<0.005), iNOS and nitrite/nitrate were lower concentration in GCBD than to G (P<0.005). Maternal use of CBD had a beneficial effect on the intestinal loops of GS with decreased nitrite/nitrate and iNOS expression.

Animals , Female , Pregnancy , Rats , Cannabidiol/therapeutic use , Gastroschisis/metabolism , Enteritis/prevention & control , Fetal Diseases/metabolism , Intestines/drug effects , Anti-Inflammatory Agents/therapeutic use , Immunohistochemistry , Rats, Sprague-Dawley , Gastroschisis/pathology , Disease Models, Animal , Nitric Oxide Synthase Type II/analysis , Fetal Diseases/pathology , Nitrates/metabolism , Nitrites/metabolism
Braz. j. med. biol. res ; 51(3): e7050, 2018. tab, graf
Article in English | LILACS (Americas) | ID: biblio-889043


A new microporous lanthanide metal-organic framework, {[Yb(BTB)(H2O) (DEF)2}n (1, DEF=N,N-Diethylformamide), with 1D nano-sized channels has been constructed by bridging helical chain secondary building units with 1,3,5-benzenetrisbenzoic acid (H3BTB) ligand. Structural characterization suggests that this complex crystallizes in the hexagonal space group P6122 and possesses 1D triangular channels with coordinated water molecules pointing to the channel center. In addition, anti-myocarditis properties of compound 1 were evaluated in vivo. The results showed that compound 1 can improve hemodynamic parameters of, and it may be a good therapeutic option for heart failure in the future.

Animals , Male , Mice , Anti-Inflammatory Agents/chemistry , Crystallography, X-Ray , Lanthanoid Series Elements/chemistry , Metal-Organic Frameworks/chemistry , Myocarditis/therapy , Anti-Inflammatory Agents/therapeutic use , Metal-Organic Frameworks/therapeutic use , Models, Molecular , Powder Diffraction , Thermogravimetry , X-Ray Diffraction