Publications by authors named "Tomas Perez"

Eosinophilic esophagitis (EoE) is a chronic allergic condition affecting the esophagus and driven by food antigens. Many individuals diagnosed with EoE have other allergic conditions, such as food allergy, asthma, allergic rhinitis, and atopic dermatitis. The clinical goals of therapy in EoE include symptomatic, histologic, and endoscopic remission.

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  • High-grade serous ovarian cancer (HGSOC) is the most lethal type of gynecologic cancer, associated with limited treatment options and a poor prognosis.
  • The study identified 20 dysregulated microRNAs (miRNAs) in HGSOC patients, with miR-145-3p being notably downregulated and linked to cancer progression.
  • Restoring miR-145-3p may provide a therapeutic target, as it influences cell mobility and proliferation by affecting the cell cycle regulation pathways.
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  • Food protein-induced enterocolitis syndrome (FPIES) is a food allergy mostly affecting infants, characterized by severe vomiting and shock, and its diagnosis can be delayed due to unclear genetic markers.
  • This study analyzed the genomes of 41 FPIES patients, identifying significant genetic variants linked to the syndrome, including genes that may influence immune response and gut health.
  • The results enhance understanding of FPIES' genetic basis and could pave the way for better diagnosis, treatment, and prevention strategies in the future.
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Introduction: Ovarian cancer is the third most common gynaecological cancer and has a very high mortality rate. The cornerstone of treatment is complete debulking surgery plus chemotherapy. Even with treatment, 80% of patients have a recurrence.

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Introduction: The frequency of mother-to-child transmission (MTCT) of human immunodeficiency virus (HIV) in Latin America has decreased considerably. However, new infections continue to be recorded, and the pediatric population remains one of the most vulnerable groups in this region. The main objective of the study was to describe the clinical, epidemiological and psychosocial characteristics of new diagnoses of HIV MTCT in 2018 in the PLANTAIDS network (Paediatric Network for Prevention, Early Detection and Treatment of HIV in Children) during the 3 years following diagnosis.

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Introduction: Interleukin (IL)-4 and IL-13 are considered key drivers of type 2 inflammatory diseases. Dupilumab is a fully human monoclonal antibody that blocks the shared receptor component for IL-4 and IL-13, thus inhibiting signaling of both cytokines.

Case Study: We report a case of a patient with uncontrolled severe asthma and other T2 inflammatory diseases (atopic dermatitis, chronic rhinosinusitis with nasal polyposis and eosinophilic esophagitis) treated with dupilumab.

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Background: the association between ovarian endometriosis (OE) and endometriosis-associated ovarian cancer (EAOC) is extensively documented, and misfunction of the immune system might be involved. The primary objective of this study was to identify and compare the spatial distribution of tumour-infiltrating lymphocytes (TILs) and tumour-associated macrophages (TAMs) in OE and EAOC. Secondary objectives included the analysis of the relationship between immunosuppressive populations and T-cell exhaustion markers in both groups.

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Background: There is no description of the drivers of prescription for allergen immunotherapy (AIT) for respiratory allergic diseases.

Methods: A prospective, multicentre, observational, non-interventional real-life study was performed in France and Spain for 20 months. Data were gathered using 2 different questionnaires, anonymously collected in an online platform.

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The association between the immune system and tumor progression has attracted much interest in the research community in recent years [...

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Introduction: High-grade serous ovarian cancer (HGSOC) is the second most frequent gynecological malignancy but the most lethal, partially due to the spread of the disease through the peritoneal cavity. Recent evidence has shown that, apart from their role in immune defense through phagocytosis and degranulation, neutrophils are able to participate in cancer progression through the release of neutrophil extracellular traps (NETs) in a process called NETosis. NETs are composed of DNA, histones, calprotectin, myeloperoxidase (MPO) and elastase and the NETosis process has been proposed as a pre-requisite for the establishment of omental metastases in early stages of HGSOC.

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  • Personalized medicine tailors healthcare treatments to the individual characteristics of each patient, enhancing the effectiveness of therapies.
  • This approach considers genetic, environmental, and lifestyle factors to optimize disease management for various conditions.
  • As personalized medicine evolves, it aims to improve patient outcomes and reduce adverse effects by moving away from a one-size-fits-all methodology.
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Background: Hypersensitivity pneumonitis entails several inflammatory lung diseases that preferentially affect the alveolar and perialveolar tissue. It is a very rare disease in children, with a complicated diagnosis due to the fact that antigen exposure usually goes unnoticed.

Case Report: A 12-year-old girl with dry cough, dyspnea, wheezing, and tachypnea, with partial improvement after treatment with inhaled bronchodilators and corticoids.

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Background: For the most part, adverse reactions caused by subcutaneous allergen-specific immunotherapy (AIT) are directly induced by the administration of an allergen; there is usually redness and induration at the area of the injection. Other skin lesions are extremely unusual.

Case Report: A 40-year-old woman with allergic rhinoconjunctivitis and asthma due to sensitization to grass pollen had received monthly doses of 0.

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