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1.
Front Allergy ; 5: 1384140, 2024.
Article in English | MEDLINE | ID: mdl-38720769

ABSTRACT

Progesterone is an endogenous hormone, produced by the adrenal cortex, the gonads and in women, its source is the corpus luteum. Progesterone is produced in the late phase of the menstrual cycle, when implantation of the zygote does not occur, the corpus luteum involutes and the release of progesterone is suppressed, thus initiating menstruation. Progestogen Hypersensitivity were initially identified as hormone allergy and were related to endogenous reactions to hormones and alteration of ovarian function. Skin manifestations such as dermatitis or urticaria were initially reported and described as progesterone autoimmune dermatitis, although the immune-mediated mechanism was not clear. Currently there is no standardization for in vivo or in vitro tests for Progestogen Hypersensitivity diagnosis. In this review, we will address the different diagnostic methods of this disease.

2.
Inj Prev ; 2024 May 23.
Article in English | MEDLINE | ID: mdl-38782558

ABSTRACT

BACKGROUND: Restrictions of male passengers of motorcycles to prevent homicides is a long-standing policy in Cali, Colombia. For some periods of time, the policy was suspended and then put into action again. All these changes were never evaluated and there has been controversy due to the perception of citizens, specifically motorcycle users, that the law was properly implemented in some periods and poorly applied in others. Our aim was to examine the effect of the non-application of the motorcycle male passenger restriction policy on the risk of homicides in Cali, Colombia. METHODS: Ecologic study conducted using an interrupted time series analysis. The main outcome was the aggregated daily counts of homicides. Secondary outcomes were the aggregated daily counts of homicides using a motorcycle and using motorcycle and firearm. Incidence rate ratios (IRR) were obtained by comparing periods of policy implementation with periods of lack of implementation in autoregressive negative binomial regression models. RESULTS: There was an increased risk of homicides when the policy was not implemented (IRR=1.12; 1.05-1.19). There was no effect on the risk of homicides committed in motorcycles (IRR=0.98; 0.88-1.10) and when a motorcycle and firearm were used (IRR=0.99; 0.89-1.10). CONCLUSIONS: The lack of implementation of the ban of motorcycle male passengers was associated with an increased risk of homicides. Our findings support the importance of this policy to prevent homicides in Cali, Colombia. Future work should examine how this policy influences other policies related to prevent homicide and violent risk-related behaviour.

4.
Am J Infect Control ; 51(1): 11-17, 2023 01.
Article in English | MEDLINE | ID: mdl-35483519

ABSTRACT

BACKGROUND: Medical devices can be reservoirs of multidrug-resistant bacteria that may be involved in the acquisition of infections since bacteria with the ability to form biofilms that are difficult to eradicate, mainly in mechanical ventilators. The aim of this work was to evaluate the efficacy of O3 against biofilms of bacteria ESKAPE group through disinfection studies. METHODS: The formation of biofilms of ESKAPE group bacteria was induced in vitro. O3 was injected at different exposure times at a constant dose of 600 mg/h. The recovery of surviving bacteria after O3 treatment was assessed by bacterial counts and biofilm disruption was analyzed. Finally, the viability and integrity of biofilms after O3 treatment was determined by confocal laser scanning microscopy (CLSM). RESULTS: O3 showed bactericidal activity on biofilms from 12 min/7.68 ppm for A. baumannii and C. freundii. P. aeruginosa, K. pneumoniae and S. aureus were killed after 15 min/9.60 ppm. Correlation analyses showed inversely proportional relationships between the variables "disruption versus O3". CLSM revealed that death was time-dependent of biofilms upon O3 exposure. Orthogonal plane analysis showed that bacteria located in the outer region of the biofilms were the ones that initially suffered damage from O3 exposure. CONCLUSIONS: Our findings suggest that this method could be an alternative for the disinfection in mechanical ventilators colonized by bacteria biofilm forming.


Subject(s)
Disinfection , Ozone , Humans , Disinfection/methods , Staphylococcus aureus , Ozone/pharmacology , Biofilms , Bacteria , Anti-Bacterial Agents/pharmacology
6.
Rev Alerg Mex ; 70(4): 293-296, 2023 Dec 31.
Article in Spanish | MEDLINE | ID: mdl-38506874

ABSTRACT

Preventing food allergies is key to reducing the incidence of the disease. Exclusive breastfeeding is recommended during the first months of life, in addition to supplementation with vitamin D and, due to the importance of the microbiota, addition of probiotics, prebiotics and symbiotic. Currently, late exposure to foods is controversial, and it is suggested to introduce allergenic foods early, trying not to expose the cutaneous route. The application of biologics in food allergy is an evolving area of research and treatment. Biologics are indicated in diseases evaluated in various studies, such as atopic dermatitis, and are approved by the FDA for prescription; However, its potential administration in the treatment of severe allergic reactions caused by food is still debated. These therapies may change the way food allergy is addressed in the future, but they are still in experimental stages and not widely available. Food anaphylaxis is a life-threatening allergic reaction that requires quick action. Prevention involves avoiding the triggering food, awareness of symptoms, and availability of epinephrine for immediate administration in case of a reaction.


La prevención en alergia alimentaria es clave para reducir la incidencia de la enfermedad. Se recomienda la lactancia materna exclusiva durante los primeros meses de vida, además de la suplementación con vitamina D y, debido a la importancia de la microbiota, adición de probióticos prebióticos y simbióticos. Actualmente la exposición tardía de los alimentos es controvertida, y se sugiere introducir tempranamente alimentos alergénicos, procurando no exponer la vía cutánea. La aplicación de biológicos en alergia alimentaria es un área de investigación y tratamiento en evolución. Los biológicos se indican en enfermedades evaluadas en diversos estudios, como la dermatitis atópica, y se encuentran aprobados por la FDA para su prescripción; sin embargo, aún se discute su potencial administración en el tratamiento de reacciones alérgicas graves provocadas por alimentos. Estas terapias pueden cambiar la forma en que se aborda la alergia alimentaria en el futuro, pero aún se encuentran en etapas experimentales y no están disponibles ampliamente. La anafilaxia por alimentos es una reacción alérgica potencialmente mortal, que requiere una acción rápida. La prevención implica evitar el alimento desencadenante, conocimiento de los síntomas y la disponibilidad de epinefrina para su administración inmediata en caso de alguna reacción.


Subject(s)
Biological Products , Dermatitis, Atopic , Food Hypersensitivity , Humans , Food Hypersensitivity/prevention & control , Epinephrine , Vitamins
7.
Rev Alerg Mex ; 70(4): 269-279, 2023 Dec 31.
Article in Spanish | MEDLINE | ID: mdl-38506871

ABSTRACT

Food allergy is an immune response to proteins in food. It usually affects 8% of children and 2% of adults in Western countries. Non-IgE-mediated food allergy mainly affects the gastrointestinal tract. Gastrointestinal food allergies are classified, by their underlying pathogenesis, as: IgE-mediated, non-IgE-mediated, or mixed. The symptoms of patients with food protein-induced allergic proctocolitis originate from local inflammation of the distal colon, which causes hematochezia in neonates. It can affect the entire gastrointestinal tract and cause symptoms of intractable emesis, with subsequent metabolic disorders and hypovolemic shock. Food protein-induced enterocolitis syndrome is a non-IgE-mediated allergy that usually appears in childhood, with prolonged repetitive vomiting, starting 1 to 4 hours after ingestion of food. The manifestation in adults is usually triggered by the consumption of shellfish. Atopic diseases affect 40-60% of patients with food protein- induced enterocolitis syndrome, including 40-50% of those with food protein-induced enteropathy and proctocolitis. Probiotics (Lactobacillus GG) can alleviate the symptoms of allergic proctocolitis induced by food proteins, by altering the composition of the intestinal microbiota. Fecal microbiota transplantation (FMT) can change intestinal microecology efficiently compared to food or probiotics.


La alergia alimentaria es una respuesta inmunitaria a las proteínas de los alimentos. Suele afectar al 8% de los niños y al 2% de los adultos en países occidentales. La alergia alimentaria no mediada por IgE afecta, principalmente, el aparato gastrointestinal. Las alergias alimentarias gastrointestinales se clasifican, por su patogenia subyacente, en: mediadas por IgE, no mediadas por IgE, o mixtas. Los síntomas de pacientes con proctocolitis alérgica inducida por proteínas alimentarias se originan por la inflamación local del colon distal, que causa hematoquecia en neonatos. Puede afectar todo el conducto gastrointestinal y provocar síntomas de emesis intratable, con subsiguientes trastornos metabólicos y choque hipovolémico. El síndrome de enterocolitis inducida por proteínas alimentarias es una alergia no mediada por IgE que suele aparecer en la infancia, con vómito prolongado repetitivo, que inicia entre 1 a 4 horas después de la ingestión de alimentos. La manifestación en adultos suele desencadenarse por el consumo de mariscos. Las enfermedades atópicas afectan del 40-60% de los pacientes con síndrome de enterocolitis inducida por proteínas alimentarias, incluso al 40-50% de quienes padecen enteropatía y proctocolitis inducidas por proteínas alimentarias. Los probióticos (Lactobacillus GG) pueden aliviar los síntomas de proctocolitis alérgica inducida por proteínas alimentarias, al alterar la composición de la microbiota intestinal. El trasplante de microbiota fecal (TMF) puede cambiar la microecología intestinal de manera eficiente comparada con los alimentos o probióticos.


Subject(s)
Enterocolitis , Food Hypersensitivity , Proctocolitis , Adult , Child , Infant, Newborn , Humans , Proctocolitis/etiology , Proctocolitis/therapy , Food Hypersensitivity/complications , Food Hypersensitivity/therapy , Food , Enterocolitis/etiology , Enterocolitis/therapy , Inflammation
8.
Rev Alerg Mex ; 70(4): 300-305, 2023 Dec 31.
Article in Spanish | MEDLINE | ID: mdl-38506876

ABSTRACT

Anaphylaxis, a potentially life-threatening reaction, is characterized by acute symptoms affecting various systems and requires immediate medical intervention. While the overall mortality rate is low, anaphylaxis induced by foods and drugs has seen an increase. Common triggers include foods, drugs, and Hymenoptera venom. Epidemiology varies by region and age, with a global incidence of 50-112 episodes per 100,000 people annually. Implicated foods vary by age and region, with peanuts and nuts being common triggers. Two mechanisms of anaphylaxis are recognized: IgE-mediated and non-IgE-mediated. Diagnosis is based on clinical criteria and serum tryptase levels. Treatment includes epinephrine, oxygen, and intravenous fluids. Exercise-induced food-dependent anaphylaxis is addressed, where exercise, combined with certain foods, triggers anaphylactic reactions. Proper understanding and management are crucial to mitigate risks.


La anafilaxia, una reacción potencialmente mortal, se caracteriza por la aparición aguda de síntomas que afectan diversos sistemas y requiere intervención médica inmediata. Aunque la tasa de mortalidad general es baja, la anafilaxia inducida por alimentos y fármacos ha experimentado un aumento. Los alimentos, fármacos y veneno de himenópteros son desencadenantes comunes. La epidemiología varía según la región y la edad, con una incidencia global de 50-112 episodios anuales por cada 100,000 personas. Los alimentos más implicados varían según la edad y la región, y los desencadenantes más comunes son cacahuetes y nueces. Se reconocen dos mecanismos de anafilaxia: mediado por IgE y no mediado por IgE. El diagnóstico se basa en criterios clínicos y niveles de triptasa sérica. El tratamiento incluye epinefrina, oxígeno y líquidos intravenosos. Se aborda la anafilaxia inducida por ejercicio dependiente de alimentos, donde el ejercicio, en combinación con ciertos alimentos, desencadena reacciones anafilácticas. La comprensión y el manejo adecuados son cruciales para mitigar riesgos.


Subject(s)
Anaphylaxis , Humans , Anaphylaxis/diagnosis , Anaphylaxis/epidemiology , Anaphylaxis/etiology , Epinephrine/therapeutic use , Exercise , Food , Oxygen
9.
Rev Alerg Mex ; 70(4): 306-312, 2023 Dec 31.
Article in Spanish | MEDLINE | ID: mdl-38506877

ABSTRACT

The pollen-food allergy syndrome, also known as oral allergy syndrome, is characterized by local reactions in the mouth and throat after consuming certain raw plant foods in individuals sensitized to pollen from grass, weeds, and trees. Birch-apple is the prototype of this syndrome, with apple, pear, and plum being the most commonly associated foods. Symptoms are usually limited to the oral cavity but can include systemic reactions, including anaphylaxis. Sensitization to pollen allergens, such as lipid transfer proteins, profilin, and PR-10 proteins, triggers this syndrome. Its prevalence varies by geographic region and the predominant pollen type, affecting between 30% and 60% of food allergies. Diagnosis involves a clinical history, skin tests, and, in ambiguous cases, double-blind, placebo-controlled oral food challenges. Treatment primarily involves avoiding trigger foods.


El síndrome de alergia a alimentos y pólenes, también conocido como síndrome polen-alimento o síndrome de alergia oral, se caracteriza por una reacción local en la boca y faringe después de ingerir ciertos alimentos vegetales crudos, en individuos sensibilizados al polen de hierbas, malezas y árboles. El abedul-manzana es el prototipo de este síndrome, siendo la manzana, pera y ciruela los alimentos más comúnmente asociados. Los síntomas suelen limitarse a la cavidad oral, pero pueden incluir reacciones sistémicas, incluida la anafilaxia. La sensibilización a alérgenos de polen, como las proteínas de transferencia de lípidos, profilina y proteínas PR-10, desencadena este síndrome. Su prevalencia varía según la región geográfica y el tipo de polen predominante, afectando entre el 30% y el 60% de las alergias alimentarias. El diagnóstico implica historia clínica, pruebas cutáneas y, en casos ambiguos, pruebas de provocación alimentaria oral. El tratamiento consiste principalmente en evitar los alimentos desencadenantes.


Subject(s)
Anaphylaxis , Food Hypersensitivity , Humans , Food , Food Hypersensitivity/diagnosis , Plant Weeds , Pollen
10.
Can J Infect Dis Med Microbiol ; 2022: 6780575, 2022.
Article in English | MEDLINE | ID: mdl-35494312

ABSTRACT

Background: Evidence from across the world suggests that the pediatric population shows different clinical manifestations and has a lower risk of severe presentation of SARS-CoV-2 infection compared to adults. However, Mexico has one of the highest mortality rates in the pediatric population due to SARS-CoV-2 infection. Therefore, our objective was to explore the epidemiological and clinical characteristics associated with a positive confirmatory test in the Mexican pediatric population admitted to a tertiary care hospital in Mexico City. Methods: Clinical, imaging and laboratory data were retrospectively collected from 121 children hospitalized during the period from March 4th, 2020, to August 8th, 2021. The patients were identified as suspicious cases according to the guidelines of the General Directorate of Epidemiology of Mexico. Real-time polymerase chain reaction (RT-PCR) tests were used to confirm SARS-CoV-2 infection. Categorical variables were compared using the Chi-square test, and propensity score matching was performed to determine univariate and multivariate odds ratios of the population regarding a positive vs. negative SARS-CoV-2 result. Results: Of the 121 children, 36 had laboratory-confirmed SARS-CoV-2 infection. The main risk for SARS-CoV-2-associated pediatric hospitalization was contact with a family member with SARS-CoV-2. It was also found that fever and fatigue were statistically significantly associated with a positive SARS-CoV-2 test in multivariate models. Clinical and laboratory data in this Mexican hospitalized pediatric cohort differ from other reports worldwide; the mortality rate (1.6%) of the population studied was higher than that seen in reports from other countries. Conclusion: Our study found that fever and fatigue at hospital presentation as well as an antecedent exposure to a family member with SARS-CoV-2 infection were important risk factors for SARS-CoV-2 positivity in children at hospital admission.

11.
Arq. Asma, Alerg. Imunol ; 6(1): 4-48, jan.mar.2022. ilus
Article in English, Portuguese | LILACS | ID: biblio-1400091

ABSTRACT

A alergia ocular, também conhecida como conjuntivite alérgica (CA), é uma reação de hipersensibilidade mediada por imunoglobulina E (IgE) do olho desencadeada por aeroalérgenos, principalmente ácaros da poeira doméstica e pólen de gramíneas. Os sintomas geralmente consistem em prurido ocular ou periocular, lacrimejamento e olhos vermelhos que podem estar presentes durante todo o ano ou sazonalmente. A alergia ocular tem frequência elevada, é subdiagnosticada e pode ser debilitante para o paciente. É potencialmente danosa para a visão, nos casos em que ocasiona cicatrização corneana grave, e na maioria dos pacientes associa-se a outros quadros alérgicos, principalmente rinite, asma e dermatite atópica. É classificada em conjuntivite alérgica perene, conjuntivite alérgica sazonal, ceratoconjuntivite atópica e ceratoconjuntivite vernal. O diagnóstico procura evidenciar o agente etiológico e a confirmação se dá pela realização do teste de provocação conjuntival. O tratamento baseia-se em evitar o contato com os desencadeantes, lubrificação, anti-histamínicos tópicos, estabilizadores de mastócitos, imunossupressores e imunoterapia específica com o objetivo de obter o controle e prevenir as complicações da doença.


Ocular allergy, also known as allergic conjunctivitis, is an immunoglobulin E-mediated hypersensitivity reaction of the eye triggered by airborne allergens, primarily house dust mites and grass pollen. Symptoms usually consist of ocular or periocular itching, watery eyes, and red eyes that may be present year-round or seasonally. Ocular allergy has a high frequency, is underdiagnosed, and can be debilitating for the patient. It is potentially harmful to vision in cases of severe corneal scarring, and in most patients, it is associated with other allergic conditions, especially rhinitis, asthma, and atopic dermatitis. It is classified as perennial allergic conjunctivitis, seasonal allergic conjunctivitis, atopic keratoconjunctivitis, and vernal keratoconjunctivitis. Diagnosis seeks to identify the etiologic agent, and confirmation is given by conjunctival provocation testing. Treatment is based on avoiding contact with triggers, lubrication, topical antihistamines, mast cell stabilizers, immunosuppressants, and specific immunotherapy with the aim of achieving control and preventing disease complications.


Subject(s)
Humans , Therapeutics , Conjunctivitis, Allergic , Diagnosis , Keratoconjunctivitis , Patients , Plants, Medicinal , Pruritus , Psychotherapy , Asthma , Signs and Symptoms , Societies, Medical , Vision, Ocular , Climate Change , Conjunctivitis, Allergic/complications , Conjunctivitis, Allergic/epidemiology , Complementary Therapies , Immunoglobulin E , Serologic Tests , Skin Tests , Allergens , Rhinitis , Rhinitis, Allergic, Seasonal , Probiotics , Acupuncture , Pyroglyphidae , Dermatitis, Atopic , Environmental Pollution , Allergy and Immunology , Antibodies, Monoclonal, Humanized , Omalizumab , Mast Cell Stabilizers , Histamine Antagonists , Hypersensitivity , Immunosuppressive Agents , Immunotherapy , Medicine, Ayurvedic , Mites
12.
Rev Alerg Mex ; 68(2): 112-116, 2021.
Article in Spanish | MEDLINE | ID: mdl-34525782

ABSTRACT

OBJECTIVES: To describe the most frequent dermatological conditions observed in COVID-19 patients and to determine whether their presence could be used to establish an early diagnosis or to predict the progression of the infection. METHODS: There was a review in PubMed/MEDLINE and EMBASE of all the articles that had been published between January 1st and November 1st, 2020, with the search terms focused on "SARS-CoV-2", "COVID-19" and "Skin diseases". RESULTS: Eighty three studies met the inclusion criteria. Skin lesions have been reported in 0.2 % of the patients. The most frequently reported dermatoses were: maculopapular/ morbilliform rashes, urticaria and angioedema, chilblain-like acral pattern, and vesicular lesions. Among researchers, there are differences of opinion about a possible diagnostic or prognostic value of the skin diseases that are associated to the infection. CONCLUSIONS: It is advisable to consider the diagnosis of SARS-CoV-2 infection in patients who call the doctor for skin lesions, urticaria, or angioedema, with or without other symptoms of the infection, especially if there is a previous history of recent exposure to other infected subjects.


Objetivos: Describir las afecciones dermatológicas más frecuentes en los pacientes con la COVID-19 y precisar si su presencia puede ser utilizada para establecer un diagnóstico temprano o para predecir la evolución de la infección. Métodos: Se realizó una revisión en PubMed/MEDLINE y EMBASE de todos los artículos publicados entre enero 1 y noviembre 1 de 2020, con los términos de la búsqueda centrados en "SARS-CoV-2", "COVID-19" y "Enfermedades cutáneas". Resultados: Cumplieron los criterios de inclusión 83 estudios. Lesiones de la piel han sido reportadas en 0.2 % de los pacientes. Las erupciones maculopapulares/morbiliformes, la urticaria y el angioedema, el patrón acral parecido a sabañones y las lesiones vesiculares fueron las dermatosis más frecuentemente informadas. Existen diferencias de opinión entre los investigadores, acerca de un posible valor diagnóstico o pronóstico de las afecciones cutáneas asociadas con la infección. Conclusiones: Es recomendable considerar el diagnóstico de la infección por SARS-CoV-2 en pacientes que consultan por presentar lesiones cutáneas, urticaria o angioedema con o sin otros síntomas de la infección y en especial si existe algún antecedente de exposición reciente a otros sujetos infectados.


Subject(s)
COVID-19/complications , Pandemics , SARS-CoV-2 , Skin Diseases/etiology , Angioedema/etiology , COVID-19/diagnosis , Diagnosis, Differential , Disease Progression , Early Diagnosis , Female , Humans , Immunosuppressive Agents/therapeutic use , Male , Omalizumab/therapeutic use , Urticaria/diagnosis , Urticaria/drug therapy , Urticaria/etiology
13.
Am J Infect Control ; 49(12): 1474-1480, 2021 12.
Article in English | MEDLINE | ID: mdl-34547360

ABSTRACT

BACKGROUND: Mechanical ventilators are essential biomedical devices for the respiratory support of patients with SARS-CoV-2 infection. These devices can be transmitters of bacterial pathogens. Therefore, it is necessary to implement effective disinfection procedures. The aim of this work was to show the impact of the modification of a cleaning and disinfection method of mechanical ventilators of patients with SARS-CoV-2 and ventilator-associated pneumonia. METHODS: A total of 338 mechanical ventilators of patients infected with SARS-CoV-2 and ESKAPE bacteria were divided in two groups. Group A and B were subjected to cleaning and disinfection with superoxidation solution-Cl/enzymatic detergent and isopropyl alcohol, respectively. Both groups were cultured for the detection of ESKAPE bacteria. The isolates were subjected to tests for identification, resistance, adherence, and genomic typing. RESULTS: Contamination rates of 21.6% (n = 36) were identified in group A. The inspiratory limb was the circuit involved in most cases of postdisinfection contamination. Acinetobacter baumanni, Pseudomonas aeruginosa, and multi-resistant Klebsiella pneumoniae were the pathogens involved in the contamination cases. The pathogens were highly adherent and in the case of A. baumanni, clonal dispersion was detected in 14 ventilators. Disinfection with enzymatic detergents allows a 100% reduction in contamination rates. CONCLUSIONS: The implementation of cleaning and disinfection with enzymatic detergents/isopropyl alcohol of mechanical ventilators of patients with SARS-CoV-2 and ESKAPE bacteria had a positive impact on postdisinfection microbial contamination rates.


Subject(s)
COVID-19 , Pneumonia, Ventilator-Associated , Disinfection , Humans , Pneumonia, Ventilator-Associated/epidemiology , Pneumonia, Ventilator-Associated/prevention & control , SARS-CoV-2 , Ventilators, Mechanical
14.
Mol Immunol ; 132: 150-156, 2021 04.
Article in English | MEDLINE | ID: mdl-33592570

ABSTRACT

INTRODUCTION: Pollens are an important source of allergens that trigger rhinitis or asthma. The allergenic extracts of pollens used to diagnose and treat allergies contain different allergenic antigens. Isolated allergenic proteins are employed in in vitro assays, skin tests and allergenic-specific immunotherapy. Calcium-binding allergens are clinically relevant antigens, and their allergenicity can be affected by Ca2+ binding. In this work, a calmodulin was identified as an allergen from Amaranthus palmeri pollen, an important source of pollinosis in Europe, Asia and North America. MATERIALS AND METHODS: Allergenic calmodulin from A. palmeri pollen was isolated by size-exclusion chromatography and reverse-phase chromatography and identified by mass spectrometry. Sensitization to isolated calmodulin was evaluated by skin prick tests in patients with allergy to A. palmeri pollen. RESULTS: Size-exclusion chromatography yielded two fractions that were recognized by the IgE of patients allergic to A. palmeri pollen. Mass spectrometry analysis of the fractions from reverse-phase chromatography showed peptide sequences that identified a calmodulin. Skin prick tests showed that the isolated calmodulin was recognized by 56% of patients allergic to A. palmeri pollen. CONCLUSION: A. palmeri pollen calmodulin could be a clinically relevant allergen in patients sensitized to this source.


Subject(s)
Allergens/immunology , Amaranthus/immunology , Antigens, Plant/immunology , Calmodulin/immunology , Pollen/immunology , Amino Acid Sequence , Asia , Asthma/immunology , Europe , Humans , Immunoglobulin E/immunology , North America , Rhinitis, Allergic, Seasonal/immunology , Skin Tests/methods
15.
World Allergy Organ J ; 13(11): 100476, 2020 Nov.
Article in English | MEDLINE | ID: mdl-33072240

ABSTRACT

INTRODUCTION: In light of the current COVID-19 pandemic, during which the world is confronted with a new, highly contagious virus that suppresses innate immunity as one of its initial virulence mechanisms, thus escaping from first-line human defense mechanisms, enhancing innate immunity seems a good preventive strategy. METHODS: Without the intention to write an official systematic review, but more to give an overview of possible strategies, in this review article we discuss several interventions that might stimulate innate immunity and thus our defense against (viral) respiratory tract infections. Some of these interventions can also stimulate the adaptive T- and B-cell responses, but our main focus is on the innate part of immunity. We divide the reviewed interventions into: 1) lifestyle related (exercise, >7 h sleep, forest walking, meditation/mindfulness, vitamin supplementation); 2) Non-specific immune stimulants (letting fever advance, bacterial vaccines, probiotics, dialyzable leukocyte extract, pidotimod), and 3) specific vaccines with heterologous effect (BCG vaccine, mumps-measles-rubeola vaccine, etc). RESULTS: For each of these interventions we briefly comment on their definition, possible mechanisms and evidence of clinical efficacy or lack of it, especially focusing on respiratory tract infections, viral infections, and eventually a reduced mortality in severe respiratory infections in the intensive care unit. At the end, a summary table demonstrates the best trials supporting (or not) clinical evidence. CONCLUSION: Several interventions have some degree of evidence for enhancing the innate immune response and thus conveying possible benefit, but specific trials in COVID-19 should be conducted to support solid recommendations.

16.
Rev Alerg Mex ; 67(2): 199-201, 2020.
Article in Spanish | MEDLINE | ID: mdl-32892535
17.
Int J Inj Contr Saf Promot ; 27(1): 51-60, 2020 Mar.
Article in English | MEDLINE | ID: mdl-31996088

ABSTRACT

Road fatalities are largely preventable problem with large socioeconomic impact. Due to the rapidly increasing population, transport systems and road infrastructure have not met the demand. The use of motorized two-wheeler vehicles has increased, as informal transport. However, evidence on their safety is scarce. The aim of this article is to examine the safety and social equity issues in MTW in the informal transport sector. Factors can be used to explain traffic collisions in MTW in the formal/informal transport sectors: design, rider behavior, road design, enforcement, and regulation of the informal transport sector. Evidence suggests that MTWs could be a common related to pedestrian fatalities. Informal transport drivers are typically poor, uneducated, young men who due to lack of other employment options move into the informal sector. Their vehicles are old, unmaintained and have a lack of protective equipment for themselves and their passengers. Young, male drivers speed, take risks and not use protective equipment. Users of informal transport live in the poorer peripheries of cities, which, have limited, inefficient or unaffordable public transport. The provision of transport has therefore become an often unrecognized, important social equity issue and studies are urgently needed on MTW in the informal transport sector.


Subject(s)
Accidents, Traffic/prevention & control , Accidents, Traffic/statistics & numerical data , Motorcycles , Off-Road Motor Vehicles , Safety , Transportation , Accidents, Traffic/mortality , Humans
18.
Cien Saude Colet ; 22(9): 3053-3059, 2017 Sep.
Article in English | MEDLINE | ID: mdl-28954156

ABSTRACT

Armed conflict has positioned Colombia as the country with the second highest internal displacement of citizens. This situation has forced government projects and international cooperation agencies to intervene to mitigate the impact of violence; however, the coping strategies implemented by the country's minorities are still unknown. The study objective is to describe the coping strategies and their relation with mental health within Afro-descendant culture in Colombia and the effects that armed conflict has on these coping mechanisms, through a phenomenological study involving focus groups and interviews with experts. Rituals and orality have a healing function that allow Afro-Colombian communities to express their pain and support each other, enabling them to cope with loss. Since the forced displacement, these traditions have been in jeopardy. Armed conflict prevents groups from mourning, generating a form of latent pain. Afro-Colombians require community interventions that create similar spaces for emotional support for the bereaved persons in the pre-conflict period. Thus, it is essential to understand the impact of this spiritual and ritualistic approach on mental health issues and the relevance of narrative and community interventions for survivors.


Subject(s)
Armed Conflicts/psychology , Mental Health Services/organization & administration , Survivors/psychology , Violence/psychology , Adaptation, Psychological , Adult , Black People/psychology , Colombia , Cultural Characteristics , Female , Focus Groups , Humans , Male , Middle Aged
19.
Ciênc. Saúde Colet. (Impr.) ; 22(9): 3053-3059, Set. 2017. graf
Article in English | LILACS | ID: biblio-890444

ABSTRACT

Abstract Armed conflict has positioned Colombia as the country with the second highest internal displacement of citizens. This situation has forced government projects and international cooperation agencies to intervene to mitigate the impact of violence; however, the coping strategies implemented by the country's minorities are still unknown. The study objective is to describe the coping strategies and their relation with mental health within Afro-descendant culture in Colombia and the effects that armed conflict has on these coping mechanisms, through a phenomenological study involving focus groups and interviews with experts. Rituals and orality have a healing function that allow Afro-Colombian communities to express their pain and support each other, enabling them to cope with loss. Since the forced displacement, these traditions have been in jeopardy. Armed conflict prevents groups from mourning, generating a form of latent pain. Afro-Colombians require community interventions that create similar spaces for emotional support for the bereaved persons in the pre-conflict period. Thus, it is essential to understand the impact of this spiritual and ritualistic approach on mental health issues and the relevance of narrative and community interventions for survivors.


Resumo O conflito armado posiciona a Colômbia como o país com o segundo maior deslocamento interno em todo o mundo. Esta situação obrigou projetos do governo e agências de cooperação internacional a intervir; no entanto, as estratégias de enfrentamento implementadas por minorias do país ainda são desconhecidas. O objetivo do estudo é descrever as estratégias de enfrentamento e sua relação com a saúde mental dentro da cultura afro-descendente na Colômbia e os efeitos que o conflito armado tem sobre esses mecanismos de enfrentamento, por meio de um estudo fenomenológico envolvendo grupos focais e entrevistas com especialistas. Rituais e oralidade têm uma função de cura que permite que as comunidades afro-colombianas para expressar sua dor e apoiar uns aos outros, permitindo-lhes lidar com a perda. Em razão do deslocamento forçado, essas tradições têm estado em perigo; o conflito armado impede-os de realizar o luto, gerando uma forma de dor latente. Elas exigem intervenções comunitárias que criem espaços de apoio emocional para as pessoas enlutadas similares aos do período pré-conflito. Assim, é essencial compreender o impacto dessa abordagem ritualista em questões de saúde mental, bem como a pertinência das intervenções comunitárias e narrativa para os sobreviventes.


Subject(s)
Humans , Male , Female , Adult , Violence/psychology , Survivors/psychology , Armed Conflicts/psychology , Mental Health Services/organization & administration , Adaptation, Psychological , Focus Groups , Colombia , Cultural Characteristics , Black or African American/psychology , Middle Aged
20.
Rev Alerg Mex ; 63(4): 342-350, 2016.
Article in Spanish | MEDLINE | ID: mdl-27795214

ABSTRACT

BACKGROUND: Adverse reactions to drugs are increasing and there are few studies for the diagnosis. OBJECTIVE: To determine the utility of modified basophil degranulation (MBD) test and modified leukocyte migration inhibition factor (MLMIF) test to prove drug hypersensitivity. METHODS: 177 patients of both sexes were studied with the diagnosis of drug hypersensitivity, determining MBD, MLMIF, or both, between 2009 and 2014. They were matched with positive and negative controls and the non-allergic population. Applications are issued according to the type of hypersensitivity, considering type I MBD and type IV MLMIF. RESULTS: 170 patients (96.04%) were positive to at least one drug (RR = 4.71). 561 MBD (73.62%) and 201 MLMIF (26.37%) were performed. Female sex was more frequent (64.41%); the average age was 38.5. MBD was positive in 70.23% and MLMIF in 67.16%. The test sensitivity was increased complementarily and with two dilutions. The correlation of MBD and MLMIF was positive and highly significant. CONCLUSIONS: Women have more drug reactions. Modified MBD test is useful at any age. Since medications can activate one or other hypersensitivity mechanism, it is important to request the tests simultaneously.


Antecedentes: Existe incremento de reacciones adversas a medicamentos y pocos estudios para el diagnóstico. Objetivo: Determinar la utilidad de pruebas modificadas de degranulación de basófilos (DB) y del factor inhibidor de la migración de leucocitos (LIF, leukocyte migration inhibition factor) para comprobar la hipersensibilidad a medicamentos. Métodos: Se estudiaron 177 pacientes, de uno y otro sexo, con diagnóstico de hipersensibilidad a medicamentos, en quienes se determinó pruebas modificadas de DB, LIF, o ambas entre 2009 y 2014. Se parearon con controles positivos, negativos y población no alérgica. Las solicitudes se emitieron de acuerdo con el tipo de hipersensibilidad, considerando tipo I a DB y tipo IV a LIF Resultados: 170 pacientes (96.04%) fueron positivos al menos a un medicamento (RR, 4.71). Se realizaron 561 pruebas modificadas de DB (73.62%) y 201 de LIF (26.37%). El sexo femenino fue más frecuente (64.41%); la edad promedio fue de 38.5 años. La prueba modificada de DB resultó positiva en 70.23% y la de LIF en 67.16%. La sensibilidad de las pruebas se incrementó en forma complementaria y a dos diluciones. La correlación de las pruebas fue altamente significativa. Conclusiones: Las mujeres presentan más reacciones a fármacos. La prueba modificada de DB es útil en cualquier edad. Como los medicamentos pueden activar uno u otro mecanismo de hipersensibilidad es importante solicitar las pruebas simultáneamente.


Subject(s)
Basophil Degranulation Test/methods , Drug Hypersensitivity/diagnosis , Leukocyte Migration-Inhibitory Factors/analysis , Adult , Drug Hypersensitivity/immunology , Female , Humans , Male , Skin Tests
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