Acute promyelocytic leukemia in childhood and adolescence: treatment results of a modified AIDA protocol at a Brazilian center.

Acute promyelocytic leukemia currently presents an excellent chance of cure with protocols based on all-trans-retinoic acid (ATRA) and anthracycline or only differentiation agents. However, high early mortality rates continue to be reported METHODS: Between 2000 and 2018, patients were enrolled and retrospectively analyzed by medical records. A modified AIDA protocol, with a 1-year shortening of the treatment duration, reduction in the number of drugs and a strategy to reduce early mortality by the postponement of the initiation of anthracyclines were employed.

Wilms tumor in children: A multivariate analysis of prognostic factors, with emphasis on inferior vena cava/right atrium extension. Results from a single-center study.

Background: To identify prognostic factors for overall survival through the analysis of 132 patients with Wilms tumor followed at a single center, with emphasis on the inferior vena cava/right atrium extension.

Methods: Retrospective analysis of overall survival using logistic regression models and including age, sex, clinical features, associated syndromes, comorbidities, tumor size before chemotherapy, stage, presence of metastatic disease and its site, invasion of adjacent structures, inferior vena cava/right atrium extension, laterality, tumor histology, chemotherapy protocol, and radiotherapy as potential risk factors.

Results: From January 2000 through November 2021, 132 patients met the inclusion criteria, 64 females and 68 males; 15 (11.

Outcome of patients with stage IV high-risk Wilms tumour treated according to the SIOP2001 protocol: A report of the SIOP Renal Tumour Study Group.

Introduction: High-risk (HR) metastatic (stage IV) Wilms tumours (WTs) have a particular poor outcome.

Methods: Here, we report the results of HR (diffuse anaplastic [DA] or blastemal type [BT]) stage IV WT treated patients according to the HR arm in the SIOP2001 prospective study.

Results: From January 2002 to August 2014, 3559 patients with WT were included in the SIOP2001 trial.

Development of a continuous reactor for emulsion-based microencapsulation of hexyl acetate with a polyuria shell.

Microencapsulation is almost exclusively performed in batch processes. With today's chemistry increasingly performed in flow reactors, this work aims to realise a continuous reactor setup for the encapsulation of an ester with a polyuria (PU) shell. The generation of an emulsion template is performed in a recirculation loop driven by a pump and equipped with static mixers, screen type and Kenics.

Immunoglobulin G4-related disease with recurrent uveitis and kidney tumor mimicking childhood polyarteritis nodosa: a rare case report.

Introduction: Immunoglobulin G4-related disease (IgG4-RD) is an condition rarely reported in children. Additionally, IgG4-RD may rarely mimic vasculitis in adults and may infrequently present with uveitis. In our service, 6,198 patients were followed-up and only one (0.

Recommendations of the Brazilian Society of Rheumatology for diagnosis and treatment of Chikungunya fever. Part 1 - Diagnosis and special situations.

Chikungunya fever has become a relevant public health problem in countries where epidemics occur. Until 2013, only imported cases occurred in the Americas, but in October of that year, the first cases were reported in Saint Marin island in the Caribbean. The first autochthonous cases were confirmed in Brazil in September 2014; until epidemiological week 37 of 2016, 236,287 probable cases of infection with Chikungunya virus had been registered, 116,523 of which had serological confirmation.

Recommendations of the Brazilian Society of Rheumatology for the diagnosis and treatment of chikungunya fever. Part 2 - Treatment.

Chikungunya fever has become an important public health problem in countries where epidemics occur because half of the cases progress to chronic, persistent and debilitating arthritis. Literature data on specific therapies at the various phases of arthropathy caused by chikungunya virus (CHIKV) infection are limited, lacking quality randomized trials assessing the efficacies of different therapies. There are a few studies on the treatment of musculoskeletal manifestations of chikungunya fever, but these studies have important methodological limitations.

The Influence of Income and Formal Education on Damage in Brazilian Patients With Systemic Lupus Erythematosus.

Objective: The aim of this study was to evaluate the association of socioeconomic status and American College of Rheumatology/Systemic Lupus International Collaborating Clinics Damage Index (SDI) score in Brazilian patients with systemic lupus erythematosus (SLE).

Methods: Five hundred twenty-three patients (SLE ACR criteria) 18 years or older who were at 12 months or greater since diagnosis were included. Socioeconomic status was assessed by per-capita income and years of education.

New concepts and outcomes for children with hepatoblastoma based on the experience of a tertiary center over the last 21 years.

Objective: The aim of this study was to summarize the experience of a tertiary center in treating hepatoblastoma for the last 21 years.

Patients And Methods: Fifty-eight cases were included. The tumor extent and prognosis were assessed using the PRETEXT system.

Chemistry of crosslinking processes for self-healing polymers.

Recent developments in material design have seen an exponential increase of polymers and polymer composites that can repair themselves in response to damage. In this review, a distinction is made between extrinsic materials, where the self-healing property is obtained by adding healing agents to the material to be repaired, and intrinsic materials, where self-healing is achieved by the material itself through its chemical nature. An overview of the crosslinking chemistries used in self-healing materials will be given, discussing the advantages and drawbacks of each system.

P-glycoprotein expression, tumor weight, age, and relapse in patients with stage I and II favorable-histology Wilms' tumor.

Fifteen percent of patients with Wilms' tumor (WT) experience relapse. It has been suggested that weight and age may affect the chances of relapse. Few studies have investigated the role, if any, between P-glycoprotein (P-gp) and relapse.

Unraveling mechanistic events in solids-stabilized emulsion polymerization by monitoring the concentration of nanoparticles in the water phase.

The fate of nanoparticles used as stabilizers in solids-stabilized, or Pickering, emulsion polymerization for the formation of armored hybrid polymer latexes was studied. We showed that disk centrifugation can be used as a powerful quantitative tool to analyze and determine the concentration of nanoparticles in the water phase throughout solids-stabilized emulsion polymerizations. We performed a series of emulsion polymerizations using vinyl acetate, vinyl pivalate, methyl methacrylate, or butyl acrylate in presence of silica nanoparticles (Ludox TM-40, ca.

TP53 mutation profile of esophageal squamous cell carcinomas of patients from Southeastern Brazil.

Esophageal cancer (EC) is among the 10 most common and fatal malignacies in the world, presenting a marked geographic variation in incidence rates between and within different countries. The TP53 tumor suppressor gene is highly mutated in esophageal tumors and its mutation pattern can offer clues to the etiopathology of the tumor. As Brazil presents one of the highest incidence areas in the West, a deeper knowledge of the molecular mechanisms related to EC development in the Brazilian population is needed.

[Central and peripheral corneal thickness: influence on the iop measurement by Tonopen].

Purpose: To assess the influence of central and peripheral corneal thickness on the IOP measurement by Tonopen.

Methods: The IOP of 58 eyes from suspected and glaucomatous patients was evaluated by Goldmann's tonometry (GT) and, by Tonopen XL on the central (TC) and peripheral (TP) regions of the cornea. Using the DGH 5100e pachymeter, we also measured the corneal thickness in its central (CCT) and peripheral (at 6:00 h) regions (PCT).