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Related Concept Videos

Asthma-I: Introduction01:29

Asthma-I: Introduction

Asthma is a chronic respiratory ailment that requires careful management due to its varying symptoms and influencing factors. It is characterized by airway inflammation, bronchial hyperresponsiveness, and reversible airflow obstruction, leading to symptoms like wheezing, shortness of breath, chest tightness, and coughing. The symptom frequency and intensity may vary considerably over time. It is also linked to immune system responses to allergens and irritants, highlighting the complex...
Asthma I: Introduction01:28

Asthma I: Introduction

Asthma is a chronic inflammatory disorder of the airways characterized by variable airflow obstruction and heightened bronchial responsiveness to a wide range of triggers. The underlying inflammation leads to airway swelling, mucus hypersecretion, and smooth muscle constriction, all of which narrow the airway lumen and impede airflow. Clinically, asthma presents with recurrent episodes of wheezing, shortness of breath, chest tightness, and coughing, symptoms that typically vary in intensity and...
Asthma-III: Symptoms and Complications01:24

Asthma-III: Symptoms and Complications

Asthma, a common chronic respiratory condition, is classified considering the frequency and severity of symptoms alongside lung function impairment. Understanding this classification is essential for appropriate treatment and management. Here's a detailed look at the classification of asthma and its clinical features and complications:
Classification of Asthma
Asthma III: Clinical Manifestations01:13

Asthma III: Clinical Manifestations

Asthma presents with a characteristic pattern of episodic respiratory symptoms that reflect underlying airway inflammation, bronchoconstriction, and mucus hypersecretion. Although severity varies among individuals, certain clinical manifestations are considered hallmarks of the disorder and often guide diagnosis and assessment.Respiratory SymptomsA persistent cough is one of the most common early features of asthma. It is frequently dry and tends to worsen at night or in the early morning,...
Asthma-II: Pathophysiology and Classification01:26

Asthma-II: Pathophysiology and Classification

Asthma is a prevalent chronic respiratory condition marked by inflammation and hyperresponsiveness of the airways. Its pathophysiology involves complex interactions among inflammatory pathways, immune responses, and neural mechanisms.
Additionally, environmental and genetic factors play crucial roles in determining an individual's susceptibility to asthma and the severity of their condition.
Critical processes in asthma pathophysiology include:
Upper Respiratory Drugs: Antitussives, Expectorants, and Mucolytics01:23

Upper Respiratory Drugs: Antitussives, Expectorants, and Mucolytics

Respiratory symptoms, such as congestion and cough, commonly accompany respiratory tract conditions. Various medications, such as antitussives, expectorants, and mucolytics, play crucial roles in providing relief.
Antitussives include codeine, dextromethorphan (Robitussin), and benzonatate (Tessalon). Codeine and dextromethorphan exert their effects centrally by suppressing the cough reflex center in the medulla.  Benzonatate operates peripherally within the respiratory tract by anesthetizing...

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Related Experiment Video

Updated: Jul 14, 2026

Identification and Characterization of Immunogenic RNA Species in HDM Allergens that Modulate Eosinophilic Lung Inflammation
08:44

Identification and Characterization of Immunogenic RNA Species in HDM Allergens that Modulate Eosinophilic Lung Inflammation

Published on: May 30, 2020

Menstrual irregularity and asthma and lung function.

Francisco Gómez Real1, Cecilie Svanes, Ernst Reidar Omenaas

  • 1Environmental Respiratory Research Unit, Institut Municipal d'Investigació Mèdica, Barcelona, Spain. francisco.real@med.uib.no

The Journal of Allergy and Clinical Immunology
|July 3, 2007
PubMed
Summary

Oligomenorrhea, characterized by irregular menstrual cycles, is linked to reduced lung function and increased asthma risk in women. These associations persist regardless of body mass index and physical activity levels.

Related Experiment Videos

Last Updated: Jul 14, 2026

Identification and Characterization of Immunogenic RNA Species in HDM Allergens that Modulate Eosinophilic Lung Inflammation
08:44

Identification and Characterization of Immunogenic RNA Species in HDM Allergens that Modulate Eosinophilic Lung Inflammation

Published on: May 30, 2020

Area of Science:

  • Reproductive endocrinology
  • Pulmonary medicine
  • Epidemiology

Background:

  • Oligomenorrhea has been previously associated with asthma.
  • The relationship between oligomenorrhea and lung function remains under-investigated.

Purpose of the Study:

  • To examine the association between oligomenorrhea and lung function.
  • To investigate the link between oligomenorrhea and asthma.
  • To determine if body mass index and physical activity modify these associations.

Main Methods:

  • A cohort of 1631 women aged 28-44 years from the European Community Respiratory Health Survey was analyzed.
  • Exclusion criteria included use of exogenous sex hormones, pregnancy, or recent childbirth.

Main Results:

  • Oligomenorrhea was significantly associated with increased asthma symptoms (OR 1.76) and allergic asthma (OR 2.46).
  • Women with oligomenorrhea exhibited lower forced vital capacity (FVC) by 63 mL.
  • These associations remained significant after excluding women using asthma medication, very lean women, or those exercising daily.

Conclusions:

  • Oligomenorrhea is independently associated with reduced lung function and a higher prevalence of asthma, particularly allergic asthma.
  • Airway pathology in oligomenorrhea may involve both hormonal and metabolic factors.
  • Clinical evaluation for asthma and lung function is recommended for women with oligomenorrhea, considering potential underlying metabolic disturbances.