What We Know About Asthma
Key findings from Center research of more than 700 pregnant women and their babies living in Northern Manhattan and the South Bronx:
Exposure shortly after birth to ambient metals (like nickel, vanadium, and carbon) is associated with wheeze and cough in children aged two and younger.
Approximately half the babies in the study have been born with an immune response to cockroach proteins. But not until the children reach 5 years, are the immune responses linked to allergy and asthma.
High cockroach and mouse allergen levels are significantly associated with asthma prevalence among children and adults.
Developing antibodies to cockroach and mouse proteins is associated with a greater risk for wheeze, hay fever, and eczema in preschool urban children as young as three years of age.
Despite strong associations between cat ownership and sensitization at age 2, owning a cat protects against current wheeze and rhinitis (stuffy nose) at age 5 years.
Combined prenatal exposure to airborne PAH and postnatal secondhand smoke results in the increased likelihood of respiratory and asthma-like symptoms at one to two years of age and at five to six years of age.
Children who were exposed to acetaminophen (active ingredient in Tylenol) prenatally were more likely to have asthma symptoms at age five. Acetaminophen has become increasingly common among women in pregnancy, which coincided with a doubling of the prevalence of asthma among children.
Feeling distressed during pregnancy may be associated with asthma symptoms during childhood. Many emotions can occur during pregnancy but if high demoralization is reported, it could impact the risk of your child wheezing, a common symptom of asthma, during childhood. Demoralization means nonspecific mental distress that may result in an individual’s inability to cope with stressful situations.
Source: Kids Health