DIAGNOSIS AND TREATMENT OF MICROSCOPIC COLITIS: POSITION PAPER ON BEHALF OF THE BRAZILIAN FEDERATION OF GASTROENTEROLOGY.

Background: Microscopic colitis (MC) is a chronic inflammatory condition of the colon, primarily characterized by watery diarrhea, with normal or near-normal endoscopic findings. It encompasses two main subtypes: lymphocytic colitis and collagenous colitis.

Objective: This position paper from the Brazilian Federation of Gastroenterology aims to review current evidence on the diagnosis and management of MC in Brazil, emphasizing the need for standardization across the country's healthcare systems.

Gene expression and immunohistochemistry analysis of ADAMTS-1 and its substrates in odontogenic keratocyst.

Background: Considering the significant participation of the microenvironment in the local aggressiveness of odontogenic keratocysts, this study aims to evaluate the expression of ADAMTS-1 and its substrates, versican, aggrecan and brevican in this locally invasive odontogenic cyst.

Methods: Immunohistochemistry and polymerase chain reaction (PCR) were conducted on 30 cases of odontogenic keratocysts (OKCs) and 20 dental follicles (DFs).

Results: The immunohistochemical expression of these proteins was predominantly cytoplasmic and granular across all samples.

Worldwide prevalence of the double burden of malnutrition in children and adolescents at the individual level: systematic review and meta-regression.

Objective: This study aimed to assess the prevalence of the double burden of malnutrition (DBM) at the individual level in children and adolescents through a comprehensive literature review.

Sources: Electronic databases, including PubMed, Scopus, and Web of Science, were searched for articles published up until September 9, 2022. Studies reporting individual-level DBM in children and adolescents were included, and meta-regression models were used to investigate potential causes of heterogeneity across studies.

A novel naphthylchalcone ([E]-4-(3-[naphthalen-2-yl]-3-oxoprop-1-en-1-yl) induces intrinsic and extrinsic apoptosis in human acute leukemia cell lines.

Background: Chalcones have been described in the literature as promising antineoplastic compounds.

Objectives: Therefore, the objective of this study was to analyze the cytotoxic effect of 23 synthetic chalcones on human acute leukemia (AL) cell lines (Jurkat and K562).

Methods: Cytotoxicity assessment was performed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method.

Study of the synergistic properties of copaiba oil co-electrospun with poly(L-co-D,L lactic acid) and natural rubber latex for application in bioactive wound dressings.

Wound healing is a complex process involving a sequence of factors that can be disrupted, negatively impacting the quality of life for patients and overburdening healthcare systems. Advanced dressings obtained by electrospinning are highlighted by the optimization of this process, allowing air exchange and protection against microorganisms. Aiming to develop bioactive dressings, this study investigated the physicochemical, mechanical, microbiological, and in vitro biological properties of membranes containing 25 %, 50 %, 75 %, and 90 % copaiba oil (CO) co-electrospun with poly(L-co-D,L-lactic acid) (PLDLA) and natural rubber latex (NR).