Publications by authors named "GUERRA F"

Adipose tissue, particularly white adipose tissue (WAT), plays a central role in energy storage and metabolic regulation. Excess WAT, especially visceral fat, is strongly linked to metabolic disorders such as obesity and type 2 diabetes. The browning of WAT, whereby white fat cells acquire characteristics of brown adipose tissue (BAT) with enhanced thermogenic capacity, represents a promising strategy to enhance metabolic health.

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Unlabelled: Sporotrichosis is a subcutaneous mycosis of global distribution, capable of affecting both humans and animals, and caused by species of the genus spp. This study aimed to evaluate the genetic diversity and mating type distribution of clinical isolates of human sporotrichosis in Paraíba, Brazil, to better understand the population structure, epidemiology, and diversification of this pathogen, as well as to explore possible transmission routes.

Methods: A total of 36 clinical isolates were morphologically identified, and clinical and demographic data were collected.

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Objectives: To compare the prevalence of training-related ECG findings in white, mixed-race, and black male Brazilian soccer players.

Design: Multicenter observational study.

Methods: This study involved athletes aged 15 to 35 years from 82 professional clubs across Brazil's five regions.

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Tricuspid regurgitation (TR) poses a significant healthcare burden and is a major concern for patients who experience debilitating symptoms and face a poorer prognosis. Cardiologists are showing renewed interest in TR, as the previous belief that it was merely a bystander of left-sided heart disease has evolved. As a result, more transcatheter techniques addressing TR are emerging.

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  • Primary hyperparathyroidism (PHPT) leads to increased parathyroid hormone levels, resulting in bone density loss and changes in bone structure, particularly affecting the femur's trabecular and cortical compartments.
  • A retrospective study analyzed 74 Caucasian Italian patients with PHPT using 3D imaging to measure bone mineral density and thickness from 2011 to 2016, revealing negative effects on both cortical and trabecular volumetric bone densities.
  • Results indicate that while PHPT negatively impacts both types of bone density, cortical thickness remains largely unaffected, aligning with existing literature on the condition's effects on bone health.
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Background: Extracellular vesicles (EVs) are a group of nanoscale cell-derived membranous structures secreted by all cell types, containing molecular cargoes involved in intercellular communication. EVs can be used to mimic "nature's delivery system" to transport nucleic acids, peptides, lipids, and metabolites to target recipient cells. EVs offer a range of advantages over traditional synthetic carriers, thus paving the way for innovative drug delivery approaches that can be used in different diseases, including cancer.

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  • * Different bacteria, including Gram-negative types and their outer membrane vesicles (OMVs), can trigger pyroptosis in various cell types, which affects inflammation and barriers in our body, but more research is needed to fully understand these effects.
  • * The review will delve into how pyroptosis pathways differ between harmful and harmless bacteria, while also examining experimental models and potential treatments that target these pathways to improve infection management.
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Background: Although originally described as an open procedure, the application in the setting of minimally invasive surgery of the Pauli technique for parastomal hernia repair is gaining interest among surgeons owing to encouraging early results. We aimed at combining and analyzing the results of minimally invasive Pauli repair by assessing the available evidence.

Methods: A literature search in Pubmed, Embase, and Web of Science was undertaken to include all articles reporting on minimally invasive repair of parastomal hernias using the Pauli technique.

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Mitophagy is the intracellular recycling system that disposes damaged/inefficient mitochondria and allows biogenesis of new organelles to ensure mitochondrial quality is optimized. Dysfunctional mitophagy has been implicated in human aging and diseases. Multiple evolutionarily selected, redundant mechanisms of mitophagy have been identified, but their specific roles in human health and their potential exploitation as therapeutic targets are unclear.

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Background: In recent years, there has been a gradual increase in cases of dentin hypersensitivity, often related to gingival recession, enamel abrasion from brushing, and wear of root cementum. This condition can affect patients of all ages but is more common between 20 and 40 years of age, especially in females and individuals with periodontal disease. The study aimed to evaluate and compare the efficacy over time of a product for at-home treatment of dentin hypersensitivity.

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: The correlation between the intake of certain nutrients and the development of oral pathologies has been demonstrated by several studies. The objective of this epidemiological investigation was to evaluate parents' knowledge and awareness of children's nutrition starting from the early stages of childhood. : A questionnaire with 35 questions was handed over to 120 parents of infants aged 4 to 24 months.

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  • PI4KA-related disorder is marked by a variety of neurological and gastrointestinal issues, including spasticity, developmental challenges, and recurrent infections, with specific attention given to the impact on B-cell function and immunodeficiency in some patients. * -
  • The study involved analyzing 13 patients with PI4KA variants, revealing common traits such as B-cell deficiency and hypogammaglobulinemia, alongside significant changes in B-cell subsets and functioning due to metabolic disruptions. * -
  • Findings indicate that mutations in PI4KA lead to disturbances in lipid production and metabolic pathways in B cells, fostering mitochondrial dysfunction and abnormal immune responses, suggesting a critical role of PI4KA in B-cell differentiation and health. *
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  • * A retrospective analysis was conducted on 811 patients from the DIAMOND study, which included a total of 1281 patients diagnosed in Italy between 2016-2021, focusing on characteristics leading to their diagnosis and calculating their respective scores.
  • * Findings showed that only 1% of patients had early diagnoses, with significant differences in prognostic variable distribution based on diagnostic pathways, and both NAC and Columbia scores were linked to all-cause mortality.
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Despite recent advances, pharmacological treatments of diabetic retinopathy (DR) do not directly address the underlying oxidative stress. This study evaluates the efficacy of a nutraceutical formulation based on maltodextrinated grape pomace extract (MaGPE), an oxidative stress inhibitor, in managing DR. A 6-month, randomized, placebo-controlled clinical trial involving 99 patients with mild to moderate non-proliferative DR was conducted.

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Background: Few data are available on long-term drug therapy and its potential prognostic impact after Takotsubo syndrome (TTS). Aim of the study is to evaluate clinical characteristics and long-term outcome of TTS patients on Renin Angiotensin system inhibitors (RASi).

Methods: TTS patients were enrolled in the international multicenter GEIST (GErman Italian Spanish Takotsubo) registry.

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  • The study looked at heart failure (HF) patients and how being a man or a woman affects their treatment and outcomes in the hospital.
  • They found that women were generally older and had different health issues compared to men, but both were treated similarly when leaving the hospital.
  • Overall, gender didn’t have a big impact on how well patients did after being treated, meaning women weren't at a disadvantage compared to men.
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  • Several techniques for maxillary sinus graft augmentation, like the lateral window and crestal approaches, have been studied, and platelet-rich fibrin (PRF) is noted for speeding up healing.
  • This study aimed to see if combining PRF with synthetic hydroxyapatite NanoBone improves bone regeneration during sinus floor elevation using the lateral window technique.
  • In a split-mouth study with six participants, the test group using NanoBone and PRF showed a greater increase in new vital bone compared to the control group using only NanoBone, suggesting that PRF may enhance bone formation without hindering the process.
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L. is recognized for its adaptogenic properties and ability to promote muscle health, function and recovery from exercise. The plethora of biological effects of this plant is ascribed to the synergism existing among the molecules composing its phytocomplex.

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Pancreatic malignancy is the fourth cause of cancer-related death in Western countries and is predicted to become the second leading cause of cancer-related mortality by 2030. The standard therapies (FOLFIRINOX and gemcitabine with nab-paclitaxel) are not resolutive because this type of cancer is also characterized by a high chemoresistance, due in part to the activity of the ATP Binding Cassette (ABC) pumps accounting for the reduction in the intracellular concentration of the drugs. In this work, we analyze the occurrence of single-nucleotide polymorphisms (SNPs) in the MDR-1 gene, in different pancreatic cancer cell lines, and in tissues from pancreatic cancer patients by DNA sequencing, as well as the expression levels of MDR-1 mRNA and protein, by qRT-PCR and Western Blot analysis.

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  • The study compares patients with degenerative mitral regurgitation (DMR) from Asian institutions (AsIs) and European/American institutions (EAIs) to understand differences in their presentation, management, and outcomes.
  • AsI patients were generally younger, had fewer symptoms, and presented with smaller heart dimensions, yet underwent fewer interventions and experienced higher mortality rates compared to EAI patients.
  • The findings suggest that imaging may not accurately reflect the severity of DMR in AsI patients due to their smaller body size, indicating a potential issue with under-treatment in this population.
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Aim: Ensuring an adequate distal resection margin (DRM) is a key factor in achieving the gold standard in surgical treatment for rectal surgery. The aim of this article is to describe our surgical technique and the usefulness of intraoperative ultrasonography (IOUS) for evaluating the DRM during robotic rectal surgery (RRS).

Method: Prospective data on five consecutive patients with rectal cancer who underwent RRS between January 2023 and December 2023 were collected.

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