Aeroallergen immunotherapy associated with reduced risk of severe COVID-19 in 1095 allergic patients.

Introduction: Allergen immunotherapy (AIT) brings along changes in the immune system, restoring dendritic cell function, reducing T2 inflammation and augmenting the regulatory cell activation. Coronavirus disease (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections, interferes with the immune system causing immune suppression during the first phase and over-activation in more advanced disease. We decided to explore the interaction of both in a real-world observational trial.

[Geographical variation of asthma prevalence among Mexican children during the COVID-19 pandemic].

Objective: The purpose of this study was to analyze the geographic variation in the prevalence of asthma in children, according to their place of residence in Mexico.

Methods: A cross-sectional analysis of the epidemiological surveillance system dataset for respiratory diseases in Mexico carried on. From 27 February to 5 November 2020, a total of 1,048,576 subjects were screened for SARS-CoV2 infection, of which 35,899 were children under 18 years of age.

Changes in the national prevalence of asthma and coronavirus disease 2019 fatality: A population-based cross-sectional study.

Background: The coronavirus disease 2019 (COVID-19) mitigation and containment strategies implemented by each country can influence the prevalence of asthma and its fatality.

Objective: To analyze the trend of asthma prevalence and COVID-19 fatality in children and adults with asthma.

Methods: The prevalence of asthma and fatalities were compared among the peaks of 5 pandemic waves in Mexico.

[Prevalence of cow´s milk allergy and lactose intolerance among Mexican late adolescents].

Objective: To determine the prevalence of cow´s milk allergy and lactose intolerance in a sample of late adolescents.

Methods: Through a population-based study, data corresponding to students with aged 15 to 18 years were analyzed.

Results: A total of 1992 adolescents was analized.

Incidencia y factores asociados con las reacciones adversas tras la primera dosis de la vacuna Pfizer-BioNTech en trabajadores de la salud.

Objective: To determine the incidence of adverse reactions (AR) after the first dose of Pfizer-BioNTech vaccine, and to identify some factors associated with AR.

Method: A retrospective cohort study was conducted. Data were obtained through an epidemiological survey answered online.

A Latin American consensus meeting on the essentials of mixed pain.

Objectives: The term "mixed pain" has been established when a mixture of different pain components (e.g. nociceptive, neuropathic, and nociplastic) are present.

Conventional office blood pressure measurements and unattended automated office blood pressure compared with home self-measurement and 24-h ambulatory blood pressure monitoring.

Objective: To assess whether automated office blood pressure (BP) (AOBP) measurement is a better method for measuring BP in the office than conventional techniques and an alternative to out-of-office BP measurements: home-self BP (HSBP) or ambulatory BP monitoring (ABPM).

Methods: We conducted a cross-sectional study of 74 patients and compared AOBP with the conventional technique using a mercury sphygmomanometer and with both out-to-office BP measurements: HSBP of 7 days (three measurements in the morning, afternoon, and night) and daytime ABPM. In addition, we compared BP values obtained using HSBP and ABPM to determine their level of agreement.

Consensus on the management of complications of cirrhosis of the liver in pediatrics.

The Asociación Mexicana de Hepatología A.C. carried out the Consensus on the Management of Complications of Cirrhosis of the Liver in Pediatrics to provide physicians with useful information for treating said complications.

[Knowledge of PrevenIMSS Programs in users of a primary health care clinic].

Background: The PrevenIMSS programs are a strategy to promote health self-care at the three levels of prevention, with special emphasis on primary health care. One of its objectives is to have an impact on the morbidity and mortality of chronic non-communicable diseases such as obesity, diabetes and hypertension, the prevention of these illnesses requires knowledge for health self-care contained in these guidelines.

Objective: To identify the information that the IMSS beneficiaries have on self-care of health contained in the PrevenIMSS guidelines.

Asthma and COVID-19 among healthcare workers from a Mexican Hospital: is there an association?

Background: Asthma does not appear to be a risk factor for developing COVID-19.

Objective: The objective of the study was to analyze the role of asthma as a factor associated with COVID-19 among healthcare workers (HW).

Methods: A crosssectional study was conducted in HW from a Mexican hospital.

Prevalence of Licit and Illicit Drugs Use during Pregnancy in Mexican Women.

For the first time, the present study employed hair testing to investigate the prevalence of classical drugs of abuse and new psychoactive substances use during gestation in a cohort of 300 Mexican pregnant women. An interview was conducted to collect data on sociodemographic aspects of the patients, and a 9 cm-long hair strand was taken from the back of the head of each mother one month after delivery. A validated ultra-high-performance liquid chromatography−high-resolution mass spectrometry method was used for the screening of classic drugs, new psychoactive substances, and medications in maternal hair.

Assessment of licit and illicit drugs consumption during pregnancy by Ultra-High Performance Liquid Chromatography-High Resolution Mass Spectrometry (UHPLC-HRMS) target screening in Mexican women hair.

Substance use in pregnancy is a global public health problem, both in developed and developing countries. Whereas information is available for major western countries, scarce data are present for the second ones. The objective assessment of pregnancy consumption of xenobiotic is provided by analysis of maternal hair, which can account for gestational consumption, given the possibility to analyze 9 cm hair corresponding to the pregnancy months.

Factors associated with oropharyngeal dysphagia diagnosed by videofluoroscopy in children with cerebral palsy.

Introduction And Aims: Oropharyngeal dysphagia (OD) occurs in children with cerebral palsy. It is important to investigate its relationship with some variables, and the objective of this study was to identify factors associated with OD.

Materials And Methods: Case-control study in patients with cerebral palsy from 8months to 15years of age, from November 2018 to November 2019, approved by the Ethics Committee.

[Prevalence of blood eosinophilia in adults with COPD according to the cut-off point].

Objective: To determine the prevalence of blood eosinophilia in adults with chronic obstructive pulmonary disease (COPD) according to different cut-off points.

Methods: A cross-sectional study was carried out in patients with COPD. The frequency of blood eosinophilia was determined by absolute (cells/ µL) and relative (%) eosinophil count.

Neutralizing Antibodies Titers and Side Effects in Response to BNT162b2 Vaccine in Healthcare Workers with and without Prior SARS-CoV-2 Infection.

The main expected result of a vaccine against viruses is the ability to produce neutralizing antibodies. Currently, several vaccines against SARS-CoV-2 are being applied to prevent mortal complications, being Pfizer-BioNTech (BNT162b2) one of the first to be authorized in the USA and Mexico (11 December 2020). This study evaluated the efficacy of this vaccine on antibody production with neutralizing capacity and its side effects in healthcare workers with and without prior SARS-CoV-2 infection and in a group of unvaccinated individuals with prior COVID-19.

[Obesity in adulthood is associated with the severity of asthma, but not with asthma control].

Background: The impact of obesity on the severity of asthma continues to be a cause of controversy.

Objective: To compare the severity of asthma and asthma control in obese patients with non-obese patients.

Methods: A cross-sectional study which included 188 patients with asthma, of ≥ 18 years of age, who were selected consecutively.

Examining the validity and consistency of the Adult Eating Behaviour Questionnaire-Español (AEBQ-Esp) and its relationship to BMI in a Mexican population.

Purpose: Appetitive traits in adults and their associations with weight can be measured using the Adult Eating Behaviour Questionnaire (AEBQ). The aim of this study was to confirm the factor structure of the Spanish AEBQ (AEBQ-Esp) in a Mexican sample and explore associations between the eight traits with body mass index (BMI).

Method: A sample of 1023 adults, mean age of 36.

Low prevalence of asthma in Mexican children and adults with a positive rtRT-PCR test for SARS-CoV-2: a cross-sectional study during the 2020 pandemic.

Background: It has recently been argued that asthma does not increase the risk of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection. If so, the prevalence of asthma in subjects diagnosed with COVID-19 should be lower than in the general population.

Objective: To determine the prevalence of asthma in Mexican children and adults with SARS-CoV-2 infection.

Prevalence of allergic diseases and their symptoms in schoolchildren according to the birth mode.

Background: The relationship between birth by cesarean section (CS) and allergic diseases' prevalence continues to be controversial. We aimed to investigate if being born by CS is associated with the prevalence of allergic diseases and their symptoms in schoolchildren.

Methods: This study included children between 6 and 7 years of age, selected by population-based sampling.