Publications by authors named "Gandhi Pavon-Romero"

Objective: Describe the pattern of allergic sensitivity in elderly.

Methods: Elderly (>60 years old) with a diagnosis of allergic respiratory disease in whom sensitivity was identified by pricking with ALK-abello extracts (Port Washington, NY, United States) were included. The results were analyzed using descriptive statistics and compared with a series of young adults in a 3:1 ratio.

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  • The study aimed to assess lung function and asthma control in patients with Non-Exacerbated Respiratory Disease (N-ERD) over three years, following GINA guidelines.
  • At baseline, N-ERD patients showed better lung function and required lower doses of inhaled corticosteroids compared to traditional asthma patients, who relied more on oral corticosteroids.
  • By the end of the follow-up, the lung function of traditional asthma patients improved significantly, leading to similar asthma control levels in both groups, but one-third of N-ERD patients continued needing additional medications to maintain control.
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  • The study focuses on the clinical characteristics of DRESS syndrome caused by antituberculosis drugs, analyzing records from patients between 2014 and 2020.
  • The research identified 15 cases that exhibited key symptoms like rash, eosinophilia, fever, and kidney/liver damage, with liver issues linked to longer latency periods.
  • Findings indicate that this syndrome does not depend on the number of drugs used or the resistance patterns of Mycobacterium tuberculosis, and it responds well to treatment with systemic corticosteroids.
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The discovery of the mechanism underlying allergic disease, mouse models of asthma, and bronchoscopy studies provided initial insights into the role of Th2-type cytokines, including interlukin (IL)-4, IL-5 and IL-13, which became the target of monoclonal antibody therapy. Omalizumab, Benralizumab, Mepolizumab, Reslizumab, and Tezepelumab have been approved. These biologicals have been shown to be good alternative therapies to corticosteroids, particularly in severe asthma management, where they can improve the quality of life of many patients.

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Purpose: To evaluate the association between allergic sensitivity and pollen counts in patients with allergic respiratory disease (ARD) and its relationship with atmospheric pollutants.

Methods: From 2012 to 2018, we evaluated the sensitivity by skin prick test in ARD patients. The pollen counts were analyzed according to international guidelines (2014-2018).

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Allergen immunotherapy (AIT) is the sole disease-modifying treatment for allergic rhinitis; it prevents rhinitis from progressing to asthma and lowers medication use. AIT against mites, insect venom, and certain kinds of pollen is effective. The mechanism of action of AIT is based on inducing immunological tolerance characterized by increased IL-10, TGF-β, and IgG4 levels and Treg cell counts.

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Asthma is a chronic inflammation of lower airway disease, characterized by bronchial hyperresponsiveness. Type I hypersensitivity underlies all atopic diseases including allergic asthma. However, the role of neurotransmitters (NT) and neuropeptides (NP) in this disease has been less explored in comparison with inflammatory mechanisms.

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Introduction: Subcutaneous allergen-specific immunotherapy (SCIT) is one of the main cornerstones in the treatment of allergic rhinitis in pediatric patients. It has demonstrated symptoms and quality of life improvement, but it is not exempt from adverse reactions (ADVrs). Nevertheless, there are a few reports that have evaluated their safety.

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Background: Aspirin-exacerbated respiratory disease (AERD) consists of asthma, chronic rhinosinusitis with polyps, and hypersensitivity to aspirin and/or nonsteroidal anti-inflammatory drugs (NSAIDs). Nasal Lysine Aspirin Challenge is an effective tool for the diagnosis of hypersensitivity to aspirin and/or NSAIDs in patients with AERD. However, there is no unified international consensus version to perform nasal provocation tests (NPTs).

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  • Red oak pollen is a significant cause of allergic respiratory issues in North America and central Europe, but the specific allergens have not been previously identified.
  • A study utilized a modified phenolic extraction method and two-dimensional gel electrophoresis to analyze the allergenic proteins in red oak pollen, revealing four major allergenic protein spots via immunoblotting and mass spectrometry.
  • The research identified eight proteins associated with IgE binding, including Enolase 1 and mitochondrial Aldehyde dehydrogenase, which could lead to improved diagnostic and treatment options for red oak allergy.
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Non-steroidal anti-inflammatory drugs (NSAID) exacerbated respiratory disease (N-ERD) is a disease integrated by asthma, nasal polyps, and hypersensitivity to non-steroidal anti-inflammatory drugs (NSAID). Genetic association studies have explored single nucleotide polymorphisms (SNPs) in genes involved in theoretical pathophysiological mechanisms, but most of these lack replication of findings in second populations. Our objective was to evaluate the association of SNPs in candidate genomic regions described in Asian and European subjects with N-ERD in Mexican-mestizo patients.

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Aspirin exacerbated respiratory disease (AERD) is a set of diseases of the unified airway, and its physiopathology is related to disruption of the metabolism of arachidonic acid (AA). Genetic association studies in AERD had explored single nucleotide polymorphism (SNPs) in several genes related to many mechanisms (AA metabolism, inflammation, drug metabolism, etc.) but most lack validation stages in second populations.

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Background: Smoking and smoke from biomass burning (BB) are the main environmental risk factors for COPD. Clinical differences have been described between COPD related to smoking and related to wood smoke, but no studies have shown genetic differences between patients exposed to these two risk factors.

Methods: To investigate a possible association of tumor necrosis factor () promoter polymorphisms, we conducted a case-control study.

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Aim: To evaluate the association of three single nucleotide polymorphisms in TNF and one in LTA in Mexican patients with aspirin-exacerbated respiratory disease (AERD) and the correlation of those single nucleotide polymorphisms with serum levels of TNF-α.

Patients & Methods: Case-control study including 133 patients with AERD, 135 patients with asthma (aspirin-tolerant asthmatics) and 182 healthy subjects.

Results: GA genotype of rs1800629 in TNF was found to be associated with the risk of developing AERD (p < 0.

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Introduction: Aspirin-exacerbated respiratory disease (AERD) is a clinical entity characterized by hypersensitivity to aspirin leading to asthma and chronic rhinosinusitis with nasosinusal polyposis. The pathophysiology of the disease involves disruption at the level of arachidonic acid metabolism. Therefore, genetic association studies have been focused on the genes coding this pathway.

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Introduction: Aspirin-exacerbated respiratory disease (AERD) refers to the combination of asthma rhinosinusitis and poliposis; ingestion of aspirin or other non-steroid anti-inflammatory drugs exacerbate asthma-like symptoms. The pathogenesis of AERD is unknown, and genetic and environmental factors contribute to the disease. Our objective is identifying polymorphisms associated with susceptibility in a Mexican mestizo population.

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Article Synopsis
  • AERD is a condition that involves chronic sinus issues, asthma, and sensitivity to aspirin, potentially linked to COX-1 inhibition and increased leukotriene production.
  • Current research is exploring genetic factors, specifically the roles of IL1B and IL8 gene polymorphisms, in understanding AERD.
  • A study found a significant association between the AA genotype of IL1B in AERD patients compared to those with aspirin-tolerant asthma, suggesting a need for further investigation into IL1β's role and its genetic connections in AERD.
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